JP6867026B2 - Faucet device - Google Patents

Description

The present invention relates to a faucet device.

A faucet device with a water purification function has been proposed. Japanese Patent No. 4653846 discloses a shower head having a built-in water purification cartridge and capable of switching between raw water and purified water.

Japanese Patent No. 4653846

In the shower head described in Japanese Patent No. 4653846, the grip portion 11 has a cylindrical shape, and the tubular portion 11a and the tubular portion 11b are screwed together. By separating this screw connection, it is possible to replace the water purification cartridge.

When the joint portion is attached and detached by a rotation method such as a screw connection, the joint portion has a cylindrical shape or a shape close to the cylindrical shape as in the above prior art. Therefore, it is preferable that the shape of the head portion and the grip portion is also a cylindrical shape. In this case, if an attempt is made to make the shape extremely different from the cylindrical shape (hereinafter, also referred to as a different shape), it is necessary to add a different shape portion to the cylindrical shape, which prevents the faucet from becoming large or becoming large. Therefore, it is necessary to reduce the size of the internal structure. Further, when the joint portion is not a rotary type, an external member for coupling such as a screw or a C ring is separately required, which impairs the outer fit property and may cause the coupling member to be lost.

In order to increase the degree of freedom in shape, it is desired to have a joint portion that is not a rotation method and does not require an external member to be separated at the time of release of the connection.

An object of the present invention is to provide a faucet device having a water purification function and a high degree of freedom in shape.

A preferred faucet device according to the present invention has a grip portion containing a water purification material and a head portion that is detachably attached to the grip portion and has a discharge port. The grip portion has an inner space portion into which a part of the head portion is inserted, an engaging hole portion provided facing the inner space portion, and a first contact surface. .. A process in which the head portion is in the engaging position in the normally mounted state and the engaging protrusion that engages with the engaging hole portion at this engaging position and a part of the head are inserted into the inner space portion. A second contact surface that comes into contact with the first contact surface, an operation unit that can displace the engagement protrusion to a retreating position where the engagement with the engagement hole portion is released, and an operation unit of the operation unit. It has a transmission unit that transmits movement to the engaging protrusions and an elastic body that urges the engaging protrusions in the protruding direction. The engaging projection is configured to be displaced to the regression position due to the contact between the first contact surface and the second contact surface accompanying the insertion.

Preferably, the grip portion has a grip body and a grip cover that covers at least a part of the grip body. Preferably, the engaging hole portion penetrates the grip body. Preferably, the grip cover covers the engaging hole portion.

Preferably, the operating unit is a release button capable of disengaging the engagement by pressing. Preferably, the outer shape of the head portion is flat at the position where the release button is arranged. Preferably, the release buttons are provided on both sides of the flat shape in the wide direction.

Preferably, the operating portion is located closer to the faucet body than the central position of the exposed length of the head portion.

The operating portion may be located closer to the faucet body than the exposed portion of the head portion. The operation unit may be located below the faucet device.

Preferably, the transmission unit has a first transmission member to which the release button is fixed and having the engagement protrusion, a second transmission member having the engagement protrusion, and a third transmission member. Preferably, the third transmission member relates to a rotation support portion which is a rotation center of the third transmission member, a first link portion provided on one side of the rotation support portion, and the rotation support portion. It has a second link portion provided on the other side. Preferably, the rotary support portion is rotatably supported by another member. Preferably, the first transmission member is rotatably engaged with the first link portion. Preferably, the second transmission member is rotatably engaged with the second link portion. Preferably, when the first transmission member moves in the first direction, the movement in the first direction is converted into the rotation of the third transmission member, and the rotation of the third transmission member is the second of the second transmission member. It is converted into movement in two directions.

A faucet device having a water purification function and a high degree of freedom in shape can be obtained.

FIG. 1 is a side view of the faucet device according to the first embodiment of the present invention. In FIG. 1, the switching operation unit is in the pushing position. FIG. 2 is a plan view of the faucet device of FIG. FIG. 3 is an exploded perspective view of the faucet device of FIG. FIG. 4A is a cross-sectional view of the faucet device of FIG. FIG. 4B is a cross-sectional view when the switching operation unit is in the pop-out position. FIG. 5 is an exploded side view of the faucet device of FIG. FIG. 6 is an exploded cross-sectional view of the faucet device of FIG. FIG. 7 is an exploded plan view of the faucet device of FIG. FIG. 8 is a more detailed exploded perspective view of the faucet device of FIG. 9 (a) is a perspective view of the transmission member, FIG. 9 (b) is a side view of the transmission member as viewed from above, and FIG. 9 (c) is a back view of the transmission member as viewed from the inside. 9 (d) is a side view of the transmission member as viewed from below, and FIG. 9 (e) is a plan view of the transmission member as viewed from the outside. 10 (a) is a perspective view of the release button, FIG. 10 (b) is a side view of the release button viewed from above, and FIG. 10 (c) is a back view of the release button viewed from the inside. 10 (d) is a side view of the release button viewed from below, and FIG. 10 (e) is a plan view of the release button viewed from the outside. 11 (a) is a plan view of the transmission member to which the release button is attached, FIG. 11 (b) is a cross-sectional view taken along the line AA of FIG. 11 (a), and FIG. 11 (c) is a sectional view. 11 is a cross-sectional view taken along the line BB of FIG. 11A. 12 (a) is a perspective view of the head body, FIG. 12 (b) is a plan view of the head body, FIG. 12 (c) is a side view of the head body, and FIG. 12 (d) is a side view of the head body. It is the figure which saw this head body from the rear. FIG. 13A is a cross-sectional view of the faucet device in the process of mounting the head portion, and FIG. 13B is a cross-sectional view of the faucet device 100 in the normally mounted state. FIG. 14 (a) is a cross-sectional view of a state in which the engagement hole portion and the engagement protrusion are disengaged by pressing the operation portion, and FIG. 14 (b) shows the engagement protrusion coming out of the grip portion 102. It is sectional drawing which shows the state. 15 (a) is a perspective view of the head cover, FIG. 15 (b) is a plan view of the head cover, FIG. 15 (c) is a side view of the head cover, and FIG. 15 (d) is a rear view of the head cover. It is a rear view. FIG. 16 is a side view of the faucet device according to the second embodiment. In FIG. 16, the switching operation unit is in the pop-out position. 17 (a) is a plan view of the faucet device of FIG. 16, and FIG. 17 (b) is a bottom view of the faucet device of FIG. FIG. 18 is an exploded perspective view of the faucet device of FIG. 19 (a) is a cross-sectional view of the faucet device of FIG. 16, and FIG. 19 (b) is a cross-sectional view of the switching operation unit when it is in the pushing position. FIG. 20 is an exploded side view of the faucet device of FIG. FIG. 21 is an exploded cross-sectional view of the faucet device of FIG. FIG. 22 is an exploded plan view of the faucet device of FIG. FIG. 23 is an exploded perspective view of the head portion. FIG. 24A is an exploded perspective view of the grip portion, and FIG. 24B is an exploded perspective view of the grip body. FIG. 25 (a) is a perspective view of the second transmission member which is a part of the transmission unit, FIG. 25 (b) is a front view of the second transmission member, and FIG. 25 (c) is the second transmission. It is a side view of a member. FIG. 26 (a) is a perspective view of the first transmission member which is a part of the transmission unit, FIG. 26 (b) is a front view of the first transmission member, and FIG. 26 (c) is the first transmission. It is a side view of the member, and FIG. 26D is a perspective view of the first transmission member as viewed from below. 27 (a) is a perspective view of the release button, FIG. 27 (b) is a rear view of the release button viewed from the rear, and FIG. 27 (c) is a bottom view of the release button viewed from below. is there. FIG. 28 (a) is a bottom view of the assembled member in which the release button is fixed to the first transmission member 360L, and FIG. 28 (b) is a cross-sectional view taken along the line bb of FIG. 28 (a). FIG. 28 (c) is a cross-sectional view taken along the line cc of FIG. 28 (a). FIG. 29 (a) is a perspective view of a third transmission member which is a part of the transmission unit, FIG. 29 (b) is a plan view of the third transmission member as viewed from above, and FIG. 29 (c) is a plan view. It is a perspective view which saw this 3rd transmission member from below. FIG. 30 (a) is a perspective view of an assembly in which a transmission member (including a release button) is attached to the head body, and FIG. 30 (b) is a perspective view of the assembly as viewed from below. (C) is a side view of this assembly. 31 (a) is a perspective view of the grip body, FIG. 31 (b) is a plan view of the grip body, and FIG. 31 (c) is a bottom view of the grip body. FIG. 32 (a) is a plan view of the faucet device in the process of mounting the head portion, and FIG. 32 (b) is a cross-sectional view taken along the line bb of FIG. 32 (a). 33 (a) is a plan view of the head portion 304 in a state where the head portion has been mounted, and FIG. 33 (b) is a cross-sectional view taken along the line bb of FIG. 33 (a). FIG. 34 (a) is a plan view of a state in which the engagement hole portion and the engagement protrusion are disengaged by pressing the operation portion, and FIG. 34 (b) is a line bb of FIG. 34 (a). It is a cross-sectional view along.

Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings as appropriate.

[First Embodiment]
FIG. 1 is a side view of the faucet device 100 according to the first embodiment of the present invention. FIG. 2 is a plan view of the faucet device 100. FIG. 3 is an exploded perspective view of the faucet device 100. FIG. 4A is a cross-sectional view of the faucet device 100. FIG. 4B is a partial cross-sectional view of the faucet device 100. In FIGS. 1 to 3 and 4 (a), the switching operation button (described later) is in the pushed position. On the other hand, in FIG. 4B, the switching operation button is in the pop-out position. FIG. 4A shows a purified water discharge state. FIG. 4B shows a raw water discharge state.

The faucet device 100 is a faucet device with a water purification function capable of switching between raw water and purified water. In the faucet device 100, the relationship between the position of the switching operation button and the water discharge switching is as follows.
(A) When the switching operation button is in the pushed position (button concave), purified water is discharged.
(B) When the switching operation button is in the pop-out position (button convex), raw water is discharged.

The faucet device 100 has a grip portion 102 and a head portion 104. A water purification material (water quality purification cartridge 106) is built in the grip portion 102. The grip portion 102 has a cavity for arranging the water purification cartridge 106, an inner surface e2 that defines the cavity, and a water purification cartridge 106 inserted into the cavity. The water purification cartridge 106 is replaceable.

The water quality purification cartridge 106 has a water permeation portion 106a including a water purification material and a hollow portion 106b. The shape of the water permeable portion 106a is substantially cylindrical. Although not shown, a typical permeable portion has a water purification material, an outer filtration layer and an inner filtration layer. The water purification material contains, for example, activated carbon as a main component. For the outer filtration layer and the inner filtration layer, for example, a non-woven fabric is used. Ceramic having a sterilizing action may be adopted for the outer filtration layer and / or the inner filtration layer. An ion exchanger may be adopted for the outer filtration layer and / or the inner filtration layer. The outer filtration layer may be a plurality of layers. The inner filtration layer may be a plurality of layers.

The water permeable portion 106a can allow water to permeate. The raw water is purified by passing through the permeable portion 106a. The raw water permeates the water purification material from the outside of the water permeable portion 106a and reaches the hollow portion 106b to become purified water.

In the grip portion 102, a gap flow path GW1 is formed between the inner surface e2 and the water permeable portion 106a (outer surface). The gap flow path GW1 is a raw water flow path of the grip portion 102. In the raw water discharge state, the raw water reaches the raw water flow path GW2 of the head portion 104 from the gap flow path GW1 without passing through the water permeation portion 106a. The raw water reaches the spout 110 from the raw water flow path GW2 and is discharged.

In the grip portion 102, the hollow portion 106b of the water purification cartridge 106 is the water purification channel JW1. The water purification channel JW1 is a water purification channel of the grip portion 102. In the purified water discharge state, the purified water reaches the purified water channel JW2 of the head portion 104 from the purified water channel JW1. The purified water reaches the spout 110 from the purified water channel JW2 and is discharged.

In the purified water discharge state, foreign matter or the like adheres to the outer surface of the water permeable portion 106a. However, these foreign substances and the like are discharged together with the raw water in the raw water discharge state. Therefore, clogging of the water purification cartridge 106 is suppressed. The water purification performance of the water purification cartridge 106 is maintained for a long period of time.

The faucet device 100 can be used by removing it from the faucet body. In this case, the grip portion 102 is gripped.

The head portion 104 is located on the downstream side of the grip portion 102. The head portion 104 constitutes the tip portion of the faucet device 100. The head portion 104 is detachably attached to the grip portion 102. When replacing the water quality purification cartridge 106, the head portion 104 is removed from the grip portion 102, the old water quality purification cartridge 106 is pulled out from the faucet tip side, and the new water quality purification cartridge 106 is pulled out from the faucet tip side. Will be inserted into.

The head portion 104 has a spout 110. Water is discharged from the spout 110. Either purified water or raw water is discharged from the spout 110. The faucet device 100 has a water purification flow path that permeates the water purification material and reaches the spout 110, and a raw water flow path that reaches the spout 110 without permeating the water purification material.

FIG. 5 is an exploded side view of the internal parts of the head portion 104. FIG. 6 is a cross-sectional view of FIG. FIG. 7 is a plan view of FIG.

The head unit 104 has a switching operation unit 120. The switching operation unit 120 is a push button. The push button 120 functions as a switching button for switching between the raw water flow path and the purified water flow path.

The head portion 104 has an alternate operation type push button mechanism 130. By this push button mechanism 130, each time the push button 120 is pushed, the position of the push button 120 is switched between the first position (pop-out position) and the second position (push position).

As shown in FIGS. 5 to 7, the push button mechanism 130 includes a first switching top 132, a second switching top 134, a switching ring 136, a switching shaft 138, a switching cover 140, and a coil spring CS1. When the push button 120 moves in the front-rear direction, the first switching top 132 moves in the front-rear direction together with the second switching top 134 and the switching shaft 138. The second switching top 134 rotates each time the button is pressed, and each rotation switches the axial position of the second switching top 134 with respect to the switching ring 136. As a result, the pushbutton 120 is held in two different positions (first and second positions). Further, the head portion 104 has a head main body 144.

The push button mechanism 130 has a thrust lock mechanism. This thrust lock mechanism is widely used as a button mechanism. The thrust lock mechanism is also used in ballpoint pens, for example, and allows the core of the ballpoint pen to be taken in and out. For example, Japanese Patent No. 3454756 and Japanese Patent No. 5721679 also employ this thrust lock mechanism. The push button mechanism 130 of the present embodiment is the same as the mechanism described in these patent publications.

Generally, as a so-called alternate operation type push button mechanism, a heart-shaped cam mechanism, a rotary cam mechanism, a ratchet cam mechanism, and the like are known. All of these mechanisms are known. Any of these mechanisms can be adopted as the pushbutton mechanism 130. Any button mechanism that enables an alternate operation method can be adopted.

The details of the alternate operation of the push button mechanism 130 are as follows. When the switching operation unit 120 in the pop-out position (first position) is pressed, the switching operation unit 120 moves to the most pushed position (maximum pushing position: third position). When the pressing is released, the switching operation unit 120 moves from the maximum pushing position (third position) to the pushing position (second position) and stands still. This pushing position (second position) is maintained unless the pushing pressure is applied again. Next, when the switching operation unit 120 at the pushing position (second position) is pressed, the switching operation unit 120 moves to the maximum pushing position (third position). When the pressing is released, the switching operation unit 120 moves from the maximum pushing position (third position) to the popping out position (first position) and stands still. In this way, each time the switching operation unit 120 is pressed, the switching operation unit 120 stops alternately at the pop-out position (first position) and the push-in position (second position), and at the maximum for each mutual transition. The push-in position (third position) is passed through. The movable range of the switching operation unit 120 is from the first position to the third position. The moving direction of the switching operation unit 120 is also referred to as a specific direction. This specific direction coincides with the axial direction.

As described above, in the present application, the terms "front-back direction", "forward" and "rear" are used. The front in the front-rear direction means the tip side of the faucet (left side in FIG. 1). The rear side in the front-rear direction means the faucet main body side (right side in FIG. 1).

The head portion 104 has a switching valve V1 for switching whether the water discharged from the spout 110 is raw water or purified water. As shown in FIGS. 5 to 7, the switching valve V1 has a raw water valve portion VG capable of opening and closing the raw water flow path and a water purification valve portion VJ capable of opening and closing the purified water flow path.

As shown in FIGS. 4 (a) and 4 (b), the raw water valve portion VG and the water purification valve portion VJ are directly connected. The raw water valve portion VG and the water purification valve portion VJ may be indirectly connected via other members.

As shown in FIGS. 5 to 7, the raw water valve portion VG has a shaft body Z1 and a raw water sealing member S1. The raw water seal member S1 is an O-ring. The raw water valve portion VG has two raw water sealing members S1. The raw water seal member S1 is coaxial with the switching valve V1.

The water purification valve portion VJ has a shaft body Z2 and a water purification seal member S2. The water purification seal member S2 is an O-ring. The water purification valve portion VJ has one water purification seal member S2. The water purification seal member S2 is coaxial with the switching valve V1.

As shown in FIGS. 4A and 4B, the shaft body Z1 is connected to the shaft body Z2. The shaft body Z2 is provided behind the shaft body Z1 (on the water-based main body side). Regardless of the switching operation of the switching operation unit 120, the relative positional relationship between the shaft body Z1 and the shaft body Z2 does not change. The shaft body Z1 and the shaft body Z2 are arranged along the same straight line extending in a specific direction. That is, the shaft body Z1 and the shaft body Z2 are arranged so that at least a part of the shaft body Z1 and the shaft body Z2 intersects this straight line. In the present embodiment, the specific direction coincides with the axial direction of the shaft body Z1. The specific direction coincides with the axial direction of the shaft body Z2. The straight line coincides with the central axis of the shaft body Z1. The straight line coincides with the central axis of the shaft body Z2. The shaft body Z1 and the shaft body Z2 are arranged coaxially.

The axial direction common to the shaft body Z1 and the shaft body Z2 is also referred to as "shaft body axial direction" in the present application. In the present embodiment, the specific direction coincides with the axial direction of the shaft body. When the shaft body is integrated between the raw water valve portion VG and the water purification valve portion VJ, the axial direction of the shaft body is the shaft body axial direction.

As shown in FIGS. 4A and 4B, the raw water valve portion VG has a shaft body Z1 and two raw water sealing members S1. The first raw water seal member S11 is arranged at the first position in the axial direction of the shaft body Z1. A second raw water seal member S12 is arranged at a second position in the axial direction of the shaft body Z1. The shaft body Z1, the first raw water sealing member S11, and the second raw water sealing member S12 are coaxial.

The water purification valve portion VJ has a shaft body Z2 and one water purification seal member S2. The shaft body Z2 and the water purification seal member S2 are coaxial.

The raw water valve portion VG is connected to the water purification valve portion VJ. A water purification valve portion VJ is connected to the faucet main body side of the raw water valve portion VG. Regardless of the operation of the switching operation unit 120, the relative positional relationship between the raw water valve unit VG and the water purification valve unit VJ does not change. The raw water valve portion VG and the water purification valve portion VJ are arranged along the same straight line extending in a specific direction. In the present embodiment, this specific direction coincides with the axial direction of the raw water valve portion VG. In the present embodiment, this specific direction coincides with the axial direction of the water purification valve portion VJ. The raw water valve portion VG and the water purification valve portion VJ are arranged coaxially.

Unless otherwise specified, the axial direction common to the raw water valve portion VG and the water purification valve portion VJ is also simply referred to as "axial direction" in the present application. In this embodiment, the specific direction coincides with the axial direction.

As shown in FIGS. 4A and 4B, the faucet device 100 (head portion 104) has a first adjacent portion R1 as an adjacent portion and a second adjacent portion R2 as an adjacent portion. .. In the present application, the portion adjacent to the switching valve V1 is broadly collectively referred to as the adjacent portion. The adjacent portion may be composed of one member or may be composed of two or more members. In the present embodiment, the first adjacent portion R1 is the switching cover 140, and the second adjacent portion R2 is the head main body 144.

The first adjacent portion R1 has a cylindrical inner surface C1 and a cylindrical hollow portion defined by the cylindrical inner surface C1. The inner surface C1 of the cylinder is coaxial with the switching valve V1. As the switching valve V1 moves, the first raw water seal member S11 slides on the inner surface C1 of the cylinder. The contact position between the inner surface C1 of the cylinder and the raw water sealing member S11 may fluctuate in the axial direction.

The second adjacent portion R2 has a cylindrical inner surface C2 and a cylindrical hollow portion defined by the cylindrical inner surface C2. The inner surface C2 of the cylinder is coaxial with the switching valve V1. As the switching valve V1 moves, the second raw water seal member S12 slides on the inner surface C2 of the cylinder. The inner surface C2 of the cylinder is a valve seat of the raw water valve portion VG. The contact position (seal position) between the inner surface C2 of the cylinder and the raw water seal member S12 may fluctuate in the axial direction. That is, in the raw water valve portion VG, the seal position may fluctuate in the axial direction.

As shown in FIG. 4A, the second adjacent portion R2 has an inclined surface K1 for a water purification valve that is inclined with respect to a specific direction. The inclined surface K1 for the water purification valve is a valve seat of the water purification valve portion VJ. The inclined surface K1 for the water purification valve is coaxial with the switching valve V1. The inclined surface K1 for the water purification valve is a surface facing rearward.

In the raw water discharge state of FIG. 4B, the water purification seal member S2 is pressed against the water purification valve inclined surface K1 by the urging force of the coil spring CS1. The urging force of the coil spring CS1 presses the switching valve V1 toward the tip of the faucet.

As shown in FIGS. 4A and 4B, the switching valve V1 has a raw water valve portion VG, a water purification valve portion VJ, and a coil spring CS1.

The switching valve V1 is connected to a push button mechanism 130 (switching shaft 138). The switching valve V1 moves in conjunction with the alternate operation of the push button mechanism 130. In conjunction with the position of the switching operation unit 120 (button), the switching valve V1 may adopt the first position P1, the second position P2, and the third position P3. The first position P1 is the position closest to the tip of the faucet in the movable range of the switching valve V1. The third position P3 is the position closest to the faucet body in the movable range of the switching valve V1. The second position P2 is located between the first position P1 and the third position P3. The moving direction of the switching operation unit 120 is the specific direction. The moving direction of the switching valve V1 is the specific direction. By operating the switching operation unit 120, the switching valve V1 integrally moves along a specific direction. In other words, by operating the switching operation unit 120, the raw water valve unit VG and the water purification valve unit VJ are integrally moved along a specific direction. Regardless of the position of the switching valve V1, the relative positional relationship between the raw water valve portion VG and the water purification valve portion VJ does not change.

As shown in FIG. 4B, when the switching operation unit 120 is in the pop-out position (first position), the switching valve V1 is in the first position P1. When the switching valve V1 is in the first position P1, the raw water is discharged. As shown in FIG. 4A, when the switching operation unit 120 is in the pushing position (second position), the switching valve V1 is in the second position P2. When the switching valve V1 is in the second position P2, purified water is discharged. When the push button mechanism 130 is not operated, the push button mechanism 130 can take only the first position P1 and the second position P2. In the mutual transition between the first position P1 and the second position P2, the third position P3 is passed through.

In this way, due to the movement in a specific direction, the raw water valve portion VG is in the closed state and the water purification valve portion VJ is in the open state, and the raw water valve portion VG is in the open state and the water purification valve portion VJ is closed. The raw water discharge state in the state has been achieved. By simply pressing the switching operation unit 120, mutual transition between the purified water discharge state and the raw water discharge state is possible. The valves of the raw water valve portion VG and the water purification valve portion VJ can be opened and closed only by moving the switching valve V1.

In the raw water discharge state shown in FIG. 4B, the first raw water sealing member S11 is in contact with the inner surface C1 of the cylinder, but the second raw water sealing member S12 is not in contact with the inner surface C2 of the cylinder. As the switching valve V1 moves, the water purification seal member S2 comes out of the cylindrical cavity defined by the inner surface C2 of the cylinder, and is located closer to the tip of the faucet than the inner surface C2 of the cylinder. The second raw water sealing member S12 is located in the space between the inner surface C1 of the cylinder and the inner surface C2 of the cylinder, and is in a non-contact state. As a result, the water stoppage on the inner surface C2 of the cylinder is released, and the raw water flows into the hollow portion of the cylinder inside the inner surface C2 of the cylinder. This raw water is discharged from the spout 110. In this way, the contact between the second raw water sealing member S12 and the inner surface C2 of the cylinder is released, so that the open state of the raw water valve portion VG is achieved. On the other hand, in this raw water discharge state, the water purification valve portion VJ is in the closed state. That is, the water purification is stopped by the contact between the water purification seal member S2 and the inclined surface K1 for the water purification valve.

In the purified water discharge state shown in FIG. 4A, the first raw water sealing member S11 is in contact with the inner surface C1 of the cylinder from the inside, and the second raw water sealing member S12 is in contact with the inner surface C2 of the cylinder from the inside. By these abutments, the closed state of the raw water valve portion VG is achieved. On the other hand, in this purified water discharge state, the water purification valve portion VJ is in the open state. In the purified water discharge state, the purified water seal member S2 is separated from the inclined surface K1 for the water purification valve. The water purification seal member S2 is located closer to the faucet main body than the inclined surface K1 for the water purification valve. Purified water flows from between the water purification seal member S2 and the inclined surface K1 for the water purification valve, and this purified water is discharged from the water discharge port 110.

FIG. 8 is an exploded perspective view of the faucet device 100. With respect to the head portion 104, FIG. 8 shows a member arranged outside the head main body 144.

The grip portion 102 has a grip body 102a and a grip cover 102b. The grip body 102a has an engaging hole E1. The engaging hole portion E1 penetrates the grip body 102a. The grip cover 102b covers substantially the entire grip body 102a. The grip cover 102b covers the engaging hole portion E1. The engaging hole portion E1 is not visible from the outside. The grip cover 102b enhances the appearance. Further, since the engaging hole portion E1 is covered with the grip cover 102b, it is possible to prevent water from entering the inside from the engaging hole portion E1.

It is also possible to provide a recess on the inner surface of the grip body 102a without providing the grip cover 102b and use this as the engaging hole portion E1. Also in this case, the engaging hole portion E1 is not visible from the outside. However, it is not easy in manufacturing to provide a recess on the inner surface of the tubular grip body 102a. Through holes are easier to manufacture. In the present embodiment, by using the through hole and the grip cover 102b, it is easy to manufacture while improving the appearance.

A part of the head portion 104 (insertion portion 154) is inserted into the grip portion 102. The space of the grip portion 102 into which the insertion portion 154 is inserted is the inner space portion 102c (see FIGS. 4 (a) and 4 (b)). The engaging hole portion E1 is provided so as to face the inner space portion 102c. Further, the grip portion 102 has a first contact surface F1 (see FIG. 8). In the present embodiment, the first contact surface F1 is the front end surface of the grip portion 102.

The head portion 104 includes a head main body 144, a first head cover 150, and a second head cover 152. Further, the head portion 104 has an insertion portion 154 that is inserted into the grip portion 102. The entire head portion 104 excluding the insertion portion 154 is covered by the first head cover 150 and the second head cover 152. The head cover 150 has a through hole 156 for penetrating the release button 200 (described later).

The head portion 104 has a transmission member 160 (first transmission member 160R, second transmission member 160L). The first transmission member 160R and the second transmission member 160L are arranged symmetrically with respect to the plane including the axis of the switching valve V1. That is, the first transmission member 160R and the second transmission member 160L are in a mirror image relationship with each other.

The head portion 104 has an elastic body 180 (first elastic body 180R, second elastic body 180L). The first elastic body 180R is arranged between the first transmission member 160R and the head body 144. The upper surface opening line 80L is arranged between the second transmission member 160L and the head main body 144. The first elastic body 180R and the second elastic body 180L are arranged symmetrically with respect to the plane including the axis of the switching valve V1. That is, the first elastic body 180R and the second elastic body 180L are in a mirror image relationship with each other. In this embodiment, the elastic body 180 is a coil spring. An elastic body other than the coil spring may be used.

The head portion 104 has a release button 200 (first release button 200R, second release button 200L). The first release button 200R is attached to the outside of the first transmission member 160R. The second release button 200L is attached to the outside of the second transmission member 160L. The first release button 200R and the second release button 200L are arranged symmetrically with respect to the plane including the axis of the switching valve V1. That is, the first release button 200R and the second release button 200L are in a mirror image relationship with each other. The operation direction (movement direction) of the release button 200 (operation unit) is perpendicular to the specific direction. The first release button 200R (center) and the second release button 200L (center) are located on the same straight line. Further, the directions of the operating forces of the first release button 200R and the second release button 200L are opposite to each other. Therefore, the operating forces applied to both are canceled out, and the stress acting on the joint portion between the head portion 104 and the grip portion 102 is suppressed.

FIG. 9A is a perspective view of the transmission member 160 (first transmission member 160R, second transmission member 160L). FIG. 9B is a side view of the transmission member 160 as viewed from above. FIG. 9C is a back view showing the inner surface of the transmission member 160. FIG. 9D is a side view of the transmission member 160 as viewed from below. FIG. 9E is a plan view showing the outer surface of the transmission member 160. Since the first transmission member 160R and the second transmission member 160L are shared, this member will be described below as the transmission member 160.

The transmission member 160 has an engaging projection T1, an inclined surface Y1, and a stepped surface D1 on its outer surface. The step surface D1 is located in front of the engaging projection T1. The inclined surface Y1 is adjacent to the engaging projection T1. The inclined surface Y1 is located behind the engaging projection T1. The inclined surface Y1 is inclined so as to be closer to the center side of the head portion 104 toward the rear (tip side). The front edge of the inclined surface Y1 is a boundary between the engaging projection T1 and the inclined surface Y1. The rear edge of the inclined surface Y1 is located at the rear end of the transmission member 160. The inclined surface Y1 is an example of the second contact surface referred to in the present application.

The second contact surface does not have to be the inclined surface Y1, but the inclined surface Y1 is preferable from the viewpoint of facilitating the mounting of the head portion 104. The inclined surface Y1 may be a flat surface or a curved surface. A flat surface is preferable from the viewpoint of smooth mounting of the head portion 104 and from the viewpoint of ease of manufacturing.

The transmission member 160 has a head engaging portion 162 on its inner surface. The head engaging portion 162 is a protrusion. The head engaging portion 162 is a columnar protrusion. The head engaging portion 162 is provided at two locations.

The transmission member 160 has an elastic body arranging portion 164 on its inner surface. The elastic body arranging portion 164 is a recess. The elastic body arranging portion 164 forms a cylindrical recess. The elastic body arranging portion 164 has a seating bottom surface 166 and a circumferential side surface 168. The elastic body arranging portion 164 is located in front of the engaging projection T1. The first head engaging portion 162 is located in front of the elastic body arranging portion 164. The second head engaging portion 162 is located behind the head engaging portion 162.

The transmission member 160 has a button engaging portion 170. The button engaging portion 170 is a through hole.

FIG. 10A is a perspective view of the release button 200 (first release button 200R, second release button 200L). FIG. 10B is a side view of the transmission member 160 as viewed from above. FIG. 10 (c) is a back view showing the inner surface of the transmission member 160. FIG. 10D is a side view of the transmission member 160 as viewed from below. FIG. 10 (e) is a plan view showing the outer surface of the transmission member 160. Since the first release button 200R and the second release button 200L are shared, this member will be described below as the release button 200.

The release button 200 has an operation pressing surface 202, an inner engaging portion 204, and a side surface 206. The operation pressing surface 202 is a smooth curved surface. This curved surface corresponds to the shape of the surface of the head cover 150. As shown in FIGS. 10 (c) and 10 (e), the contour shape of the release button 200 is circular. The contour shape of the release button 200 corresponds to the shape of the through hole 156 of the head cover 150.

FIG. 11A is a plan view showing a state in which the release button 200 is fixed to the transmission member 160. 11 (b) is a cross-sectional view taken along the line AA of FIG. 11 (a). 11 (c) is a cross-sectional view taken along the line BB of FIG. 11 (a).

As is clear from the comparison between FIGS. 10 and 9, the contour shape of the inner engaging portion 204 corresponds to the shape of the button engaging portion 170 of the transmission member 160. As shown in FIG. 11C, the release button 200 is fixed to the transmission member 160 by inserting the inner engaging portion 204 into the button engaging portion 170. The fixing strength is increased by the small protrusion 208 provided on the inner engaging portion 204. The small protrusions 208 achieve a fit-and-kill fixation.

FIG. 12A is a perspective view of the head body 144. FIG. 12B is a plan view of the head body 144. FIG. 12 (c) is a side view of the head body 144. FIG. 12D is a front view of the head body 144 as viewed from the front.

The head body 144 has the above-mentioned insertion portion 154, a first side surface portion 222R to which the first transmission member 160R and the like are attached, and a second side surface portion 222L to which the second transmission member 160L and the like are attached.

The first side surface portion 222R has a side surface engaging portion 224R to which the head engaging portion 162 of the transmission member 160 (first transmission member 160R) engages. Two side engaging portions 224R are provided. Each of the two head engaging portions 162 is engaged with these side engaging portions 224R. The side engaging portion 224R is a slide hole. The head engaging portion 162 can slide inside the side engaging portion 224R.

The second side surface portion 222L has a side surface engaging portion 224L to which the head engaging portion 162 of the transmission member 160 (second transmission member 160L) engages. Two side engaging portions 224L are provided. Each of the two head engaging portions 162 is engaged with these side engaging portions 224L. The side engaging portion 224L is a slide hole. The head engaging portion 162 can slide inside the side engaging portion 224L.

As described above, the transmission member 160 is displaceably supported by the slide engaging portion between the head engaging portion 162 and the side engaging portion 224. Further, these slide engaging portions are provided at two places. Therefore, the transmission member 160 can be displaced while maintaining its posture in a stable manner.

As shown in FIG. 12, the head body 144 has an elastic body holding portion 230. An elastic body holding portion 230R is provided on the first side surface portion 222R. An elastic body holding portion 230L is provided on the second side surface portion 222L.

The elastic body holding portion 230 is a protrusion. An elastic body holding portion 230R is inserted into one end of the first elastic body 180R. An elastic body holding portion 230L is inserted into one end of the second elastic body 180L.

The elastic body 180 is stably supported in a stretchable state by the elastic body holding portion 230 and the elastic body arranging portion 164. The elastic body 180 urges the transmission member 160 to the outside.

In the faucet device 100 configured in this way, the head portion 104 is detachably attached to the grip portion 102.

The grip portion 102 is first contacted with the inner space portion 102c into which a part of the head portion 104 (insertion portion 154) is inserted and the engagement hole portion E1 provided facing the inner space portion 102c. It has a surface F1 (see FIG. 8). In the present embodiment, the first contact surface F1 is the front end surface of the grip portion 102. Of course, the first contact surface F1 is not limited to the front end surface of the grip portion 102, and may be at a position where it can come into contact with the second contact surface.

FIG. 13 shows a mounting process of the head portion 104. FIG. 13A is a cross-sectional view showing a stage in which the head portion 104 is being attached to the grip portion 102. FIG. 13B is a cross-sectional view showing a normal mounting state in which the mounting is completed. When the head portion 104 is attached to the grip portion 102, the state proceeds from the state (insertion stage) of FIG. 13 (a) to the regular mounting state of FIG. 13 (b).

In this mounting step, first, the insertion of the insertion portion 154 into the inner space portion 102c is started. A state in which a part of the insertion portion 154 is inserted into the inner space portion 102c but the inclined surface Y1 is not receiving a force from the first contact surface F1 is also referred to as an insertion start stage. At this insertion start stage, the inclined surface Y1 (second contact surface) comes into contact with the first contact surface F1 (front end surface of the grip portion 102) (see the enlarged portion in FIG. 13A). In both the first transmission member 160R and the second transmission member 160L, the inclined surface Y1 comes into contact with the first contact surface F1. At this time, the operation of the release button 200 is unnecessary. The rear end (tip) Y11 of the inclined surface Y1 is located inside the first contact surface F1 in a non-operating state in which no external force is applied to the operating portion (release button 200). That is, at the insertion start stage, the rear end Y11 of the inclined surface Y1 is located inside the first contact surface F1. The rear end Y11 of the two inclined surfaces Y1 at the insertion start stage can be located inside the first contact surface F1 (front end surface of the grip portion 102) in the non-operated state. In the non-operated state, each of all the inclined surfaces Y1 (second contact surface) is in a position where it can come into contact with the first contact surface F1. Therefore, the inclined surface Y1 comes into contact with the first contact surface F1 without operating the release button 200.

In this state, the head portion 104 is pushed into the grip portion 102 (see the black arrow in FIG. 13A). By this pushing, the inclined surface Y1 moves to the rear (grip portion 102 side) while being pressed from the first contact surface F1. At the same time as this movement, the inclined surface Y1 is pushed by the first contact surface F1 and is displaced inward (the center side of the head portion 104). Since the inclined surface Y1 is a flat surface or a smooth curved surface, the first contact surface F1 slides on the inclined surface Y1 and the displacement of the inclined surface Y1 inward proceeds smoothly. Along with the inclined surface Y1, the engaging projection T1 is also displaced inward.

When the head portion 104 is further pushed in, the inclined surface Y1 is further pushed inward by the first contact surface F1, and the engaging projection T1 reaches the regression position. When the head portion 104 is further pushed in, the engaging projection T1 reaches the position of the engaging hole portion E1 and enters the engaging hole portion E1. This is because the engaging projection T1 is urged outward by the elastic body 180. When the engaging projection T1 reaches the position of the engaging hole portion E1, it enters the engaging hole portion E1 while moving (protruding) to the engaging position by the urging force of the elastic body 180. As a result, it becomes a regular wearing state. In the normally mounted state, the stepped surface D1 and the inner surface of the engaging hole portion E1 are engaged with each other, so that the head portion 104 is securely locked.

In this way, the engagement projection T1 is configured to be displaced to the regression position by the contact between the first contact surface F1 and the inclined surface Y1 (second contact surface) accompanying the insertion of the head portion 104. There is. Due to the contact between the first contact surface F1 and the inclined surface Y1 (second contact surface) accompanying the insertion of the head portion 104, the engagement projection T1 reaches the regression position without the operation of the operation portion 200. It is configured to be displaced. Therefore, the head portion 104 need only be inserted into the grip portion 102, and the operation portion (release button 200) does not need to be operated.

FIG. 14 shows a step of removing the head portion 104. FIG. 14A is a cross-sectional view showing a state in which the release button 200 is pressed. FIG. 14B is a cross-sectional view showing a state in which the removal is almost completed.

In this removal step, the release button 200 is first pressed (see the small black arrow in FIG. 14A). By this pressing, the release button 200 moves (regresses) inward. By moving the release button 200, the transmission member 160 to which the release button 200 is attached also moves inward. As a result, the engaging projection T1 which is a part of the transmission member 160 also moves inward.

By operating the release button 200, the engaging projection T1 is moved to the regressing position (FIG. 14A). By this movement, the engagement between the engagement protrusion T1 and the engagement hole portion E1 is released. By pulling out the head portion 104 from the grip portion 102 in this disengaged state (see the large black arrow in FIG. 14A), the removal of the head portion 104 is completed. In FIG. 14B, the engaging protrusion T1 protrudes from the inner space portion 102c.

As described above, the head portion 104 can be easily attached and detached. To attach the head portion 104, it is sufficient to insert the head portion 104 without operating the operation unit 200. To remove the head portion 104, it is sufficient to pull out the head portion 104 while pressing the operation portion 200. Since there are no external parts such as screws, the parts will not be lost. It can be easily attached and detached with bare hands, and no jig is required for attachment and detachment.

This detachable structure is not a rotation method that involves relative rotation between the head portion 104 and the grip portion 102. Therefore, the shape of the joint portion is not limited to the cylindrical shape. As a result, a faucet device having an excellent degree of freedom in shape design is realized. For example, an aesthetically pleasing design such as the faucet device 100 is also possible.

Since the engaging hole portion E1 is covered with the grip cover 102b, it cannot be visually recognized from the outside. The engaging projection T1 engaged with the engaging hole E1 is also not visible from the outside. Therefore, it is excellent in aesthetics. Further, the shape of the outer surface (operation pressing surface 202) of the operation portion (release button 200) is made to correspond to the outer surface of the head portion 104 around it (see FIG. 3). Therefore, the aesthetics are further enhanced.

As described above, the movement of the operation unit (release button 200) is transmitted to the engaging projection T1. In the above embodiment, the transmission member 160 has an engaging projection T1. Therefore, in the present embodiment, the transmission unit that transmits the movement of the operation unit 200 to the engaging projection T1 is a part of the transmission member 160. By integrating the engaging projection T1 and the transmitting portion, the movement of the operating portion 200 is reliably transmitted to the engaging projection T1. Further, since the structure is simplified by this integrated structure, the durability is improved and the assembly becomes easy. Also in the second embodiment described later, the transmission unit includes a member (first transmission member 360L) integrated with the engagement projection T3.

Of course, the transmission portion may be a member different from the engaging projection T1. Further, for example, the transmission member 160 may be an integral member including an operation unit. In the second embodiment described later, the transmission unit includes a member (second transmission member 360U and third transmission member 360C) different from the member having the engaging projection T3 (first transmission member 360L). Of these, the second transmission member 360U has an engaging projection T2 different from the engaging projection T3.

15 (a) is a perspective view of the head cover 150, FIG. 15 (b) is a plan view of the head cover 150, FIG. 15 (c) is a side view of the head cover 150, and FIG. 15 (d) is a head cover. It is a rear view which looked at 150 from the rear.

In the present embodiment, the outer shape of the head cover 150 is the outer shape of the head portion 104. However, for the portion where the release button 200 is arranged, the outer surface (operation pressing surface 202) of the release button 200 is the outer shape of the head portion 104. At the position where the release button 200 is arranged, the outer shape of the head portion 104 (the outer shape of the head cover 150) has a flat shape. In the portion where the release button 200 is arranged, the cross-sectional line of the outer shape (contour) of the head portion 104 is also referred to as an operation area cross-sectional line below. The entire operation area cross-sectional line is composed of smooth curves. A part of the operation area cross-sectional line is composed of an outer surface (operation pressing surface 202) of the release button 200. This operation area cross-sectional line is elliptical. The operation area cross-sectional line is a cross-sectional line in a cross section along a direction perpendicular to the specific direction.

This outer shape (operation area cross-sectional line) has a wide direction W. The wide direction W is the direction in which the cross-sectional width is maximized in the cross-sectional line of the operation area. The cross-sectional width is the length of a line segment that crosses the cross-section line of the operation area, in other words, the distance between two intersections between the cross-section line of the operation area and an arbitrary straight line. This outer shape (operation area cross-sectional line) has a narrow direction N. The narrow width direction N is the direction in which the cross-sectional width is minimized in the cross-sectional line of the operation area.

Release buttons 200 are provided on both sides of the wide direction W. A release button 200 is provided at the position of the through hole 156 in FIG. 15 (see FIG. 3).

Release buttons 200 are provided on both sides of the wide direction W. Therefore, the release button 200 is excellent in push operability. In particular, since the release button 200 is pressed so as to be sandwiched from both sides of the wide direction W, it is easy to press the two release buttons 200 at the same time. In addition, the two release buttons 200 are arranged symmetrically with respect to the plane including the axis of the switching valve V1. Further, the pressing direction (moving direction) of the release button 200 is perpendicular to the specific direction. Therefore, the operation of pressing the two release buttons 200 at the same time is made even easier.

[Second Embodiment]
FIG. 16 is a side view of the faucet device 300 according to the second embodiment. FIG. 17A is a top view of the faucet device 300, and FIG. 17B is a bottom view of the faucet device 300. FIG. 18 is an exploded perspective view of the faucet device 300. 19 (a) and 19 (b) are cross-sectional views of the faucet device 300. In FIGS. 16 to 18 and 19 (a), the switching operation button 320 (described later) is in the pop-out position. On the other hand, in FIG. 19B, the switching operation button 320 is in the pushed position. FIG. 19A shows a purified water discharge state. FIG. 19B shows a raw water discharge state.

The faucet device 300 is a faucet device with a water purification function capable of switching between raw water and purified water. In the faucet device 300, the relationship between the position of the switching operation button and the water discharge switching is as follows.
(A) When the switching operation button is in the pop-out position (button convex), purified water is discharged.
(B) When the switching operation button is in the pushed position (button concave), raw water is discharged.

The faucet device 300 has a grip portion 302 and a head portion 304. A water purification material (water quality purification cartridge 306) is built in the grip portion 302. The grip portion 302 has a cavity for arranging the water purification cartridge 306, an inner surface e2 that defines the cavity, and a water purification cartridge 306 inserted into the cavity. The water purification cartridge 306 is replaceable. The configuration and function of the water purification cartridge 306 are the same as those of the water purification cartridge 106 described above.

The head unit 304 has a switching operation unit 320. In the present embodiment, the switching operation unit 320 is a switching operation button. The switching operation unit 320 is a push button. The switching operation button 320 functions as a button for switching between the raw water flow path and the purified water flow path.

The faucet device 300 can be used by removing it from the faucet body. In this case, the grip portion 302 is gripped.

The head portion 304 is located on the downstream side of the grip portion 302. The head portion 304 constitutes the tip portion of the faucet device 300. The head portion 304 is detachably attached to the grip portion 302. When replacing the water purification cartridge 306, the head portion 304 is removed from the grip portion 302, the old water quality purification cartridge 306 is pulled out from the faucet tip side, and the new water quality purification cartridge 306 is pulled out from the faucet tip side. Will be inserted into.

The head portion 304 has a spout 310. Water is discharged from the spout 310. Either purified water or raw water is discharged from the spout 310. The faucet device 300 has a water purification flow path that permeates the water purification material and reaches the spout 310, and a raw water flow path that reaches the spout 310 without permeating the water purification material.

FIG. 20 is an exploded side view of the internal parts of the head portion 304. FIG. 21 is a cross-sectional view of FIG. FIG. 22 is a plan view of FIG. 20.

The head portion 304 has an alternate operation type push button mechanism 330. With this push button mechanism 330, each time the push button 320 is pressed, the position of the push button 320 is switched between a first position (pop-out position) and a second position (push position).

As shown in FIGS. 20 to 22, the push button mechanism 330 includes a first switching frame 332, a second switching frame 334, a switching ring 336, a switching shaft 338, a first switching case 340, an O-ring 342, and a second switching case. It has 344, packing 346, a third switching case 348, an O-ring 350, a coil spring CS1 and a coil spring CS2. Further, the head portion 304 has a head main body 351. When the push button 320 moves in the front-rear direction, the first switching top 332 moves in the front-rear direction together with the second switching top 334 and the switching shaft 338. The second switching top 334 rotates every time the button is pressed, and each rotation switches the axial position of the second switching top 334 with respect to the switching ring 336. As a result, the pushbutton 320 is held in two different positions (first and second positions).

The head body 351 has a link support portion 357. Link support portions 357 are provided on both the left and right sides of the head main body 351. The link support portion 357 is a protruding portion of a cylinder. The link support portion 357 has an insertion hole. The rotation support portion 392 (described later) of the third transmission member 360C is inserted into this insertion hole.

The thrust lock mechanism is also used in this push button mechanism 330. Similar to the push button mechanism 330 described above, the push button mechanism 330 is an alternate operation type push button mechanism. The alternate operation of the push button mechanism 330 is the same as that of the first embodiment described above.

The head portion 304 has a switching valve V2 for switching whether the water discharged from the spout is raw water or purified water. As shown in FIGS. 20 to 22, the switching valve V2 has a raw water valve portion VG capable of opening and closing the raw water flow path and a water purification valve portion VJ capable of opening and closing the purified water flow path. Further, the switching valve V2 has a valve joint Z3. One end of the valve joint Z3 is connected to the shaft body Z1. The other end of the valve joint Z3 is connected to the shaft body Z2. The raw water valve portion VG and the water purification valve portion VJ are indirectly connected via a valve joint Z3. The positional relationship between the raw water valve portion VG and the water purification valve portion VJ can change.

The raw water valve portion VG has a shaft body Z1 and a raw water seal member PK1. The raw water seal member PK1 is a packing. The raw water seal member PK1 is attached to the shaft body Z1.

The water purification valve portion VJ has a shaft body Z2 and a water purification seal member S2. The water purification seal member S2 is an O-ring. The water purification seal member S2 is attached to the shaft body Z2.

As shown in FIGS. 19A and 19B, the faucet device 300 (head portion 304) has a first adjacent portion R1 as an adjacent portion and a second adjacent portion R2 as an adjacent portion. .. As described above, in the present application, the portion adjacent to the switching valve V2 is broadly collectively referred to as the adjacent portion.

The first adjacent portion R1 has a contact surface M1 for a raw water valve (see FIG. 19B). The raw water valve contact surface M1 is a surface facing rearward. The raw water valve contact surface M1 may be a surface perpendicular to the axial direction, and a surface seal may be formed in which the vertical surface abuts on the raw water sealing member PK1 to perform a sealing function. Further, a lip portion is provided that projects rearward from the base surface of the rear end portion of the third switching case 348, and the lip portion abuts on the raw water sealing member PK1 to form a lip seal that functions as a seal. May be good. In addition, in order to improve the sealing property, a configuration including a lip portion, that is, a lip seal is preferable. A plane (a plane perpendicular to the axial direction) may be formed at the most advanced portion of the lip portion, or the most advanced portion of the lip portion may be a curved surface and the most advanced portion may not have a flat surface. May be done. Even if the most advanced portion has no flat surface, the most advanced portion is deformed when it comes into contact with the raw water seal member PK1, so that the contact surface functions as the raw water valve contact surface M1. As described above, the raw water valve contact surface M1 can be a lip portion arranged on the rear end surface or the rear end surface portion of the third switching case 348.

The second adjacent portion R2 has a water purification valve contact surface K1. The contact surface K1 for the water purification valve is an inclined surface for the water purification valve. In the first embodiment described above, the water purification valve contact surface K1 is a surface facing rearward, but in the second embodiment, the water purification valve contact surface K1 is a surface facing forward.

In the raw water discharge state shown in FIG. 19B, the push button 320 is in the push position. At this time, the water purification seal member S2 is in contact with the inclined surface K1 for the water purification valve, and the raw water seal member PK1 is separated from the contact surface M1 for the raw water valve. That is, at this time, the raw water valve portion VG is in the open state, and the water purification valve portion VJ is in the closed state.

In the purified water discharge state shown in FIG. 19A, the push button 320 is in the pop-out position. At this time, the water purification seal member S2 is separated from the water purification valve inclined surface K1, and the raw water seal member PK1 is in contact with the raw water valve contact surface M1. That is, at this time, the raw water valve portion VG is in the closed state, and the water purification valve portion VJ is in the open state.

The switching valve V2 is a part of the push button mechanism 330. The switching valve V2 operates by the alternate operation of the push button mechanism 330. In conjunction with the position of the switching operation unit 320 (button), the switching valve V2 can adopt the first position P1, the second position P2, and the third position P3. The first position P1 is the position closest to the tip of the faucet in the movable range of the switching valve V2. The third position P3 is the position closest to the faucet body in the movable range of the switching valve V2. The second position P2 is located between the first position P1 and the third position P3. The moving direction of the switching operation unit 320 is the specific direction. The moving direction of the switching valve V2 is the specific direction. By operating the switching operation unit 320, the switching valve V2 moves along a specific direction. In other words, by operating the switching operation unit 320, the raw water valve unit VG and the water purification valve unit VJ move along a specific direction.

As shown in FIG. 19B, when the switching operation unit 320 is in the pushing position (second position), the switching valve V2 is in the second position P2. When the switching valve V2 is in the second position P2, the raw water is discharged. As shown in FIG. 19A, when the switching operation unit 320 is in the pop-out position (first position), the switching valve V2 is in the first position P1. When the switching valve V2 is in the first position P1, purified water is discharged. When the push button mechanism 330 is not operated, the push button mechanism 330 can take only the first position P1 and the second position P2. In the mutual transition between the first position P1 and the second position P2, the third position P3 is passed through.

In this way, due to the movement in a specific direction, the raw water valve portion VG is in the closed state and the water purification valve portion VJ is in the open state, and the raw water valve portion VG is in the open state and the water purification valve portion VJ is closed. The raw water discharge state in the state has been achieved. By simply pressing the switching operation unit 320, mutual transition between the purified water discharge state and the raw water discharge state is possible. The valves of the raw water valve portion VG and the water purification valve portion VJ can be opened and closed only by moving the switching valve V2.

FIG. 23 is an exploded perspective view of the head portion 304. FIG. 24 is an exploded perspective view of the grip portion 302. In FIG. 23, the description of the operation button 320 is omitted.

As shown in FIG. 24, the grip portion 302 has a grip main body 302a and a grip cover 302b. The grip body 302a has an engaging hole E2. The engaging hole portion E2 penetrates the grip body 302a. The grip cover 302b covers substantially the entire grip body 302a. The grip cover 302b covers the engaging hole portion E2. The engaging hole portion E2 is not visible from the outside. The grip cover 302b enhances the appearance. Further, since the engaging hole portion E2 is covered with the grip cover 302b, the intrusion of water from the engaging hole portion E2 is prevented.

It is also possible to provide a recess on the inner surface of the grip body 302a without providing the grip cover 302b and use this as the engaging hole portion E2. Also in this case, the engaging hole portion E2 is not visible from the outside. However, it is not easy in manufacturing to provide a recess on the inner surface of the tubular grip body 302a. Through holes are easier to manufacture. In the present embodiment, by using the through hole and the grip cover 302b, it is easy to manufacture while improving the appearance.

A part of the head portion 304 is inserted into the grip portion 302. As shown in FIG. 18, the portion of the head 304 that is inserted into the grip portion 302 is referred to as an insertion portion 354. The space of the grip portion 302 into which the insertion portion 354 is inserted is referred to as an inner space portion. The engaging hole portion E2 is provided facing the inner space portion. Further, the grip portion 302 has a first contact surface F2 (see FIGS. 18 and 24). In the present embodiment, the first contact surface F2 is the front end surface of the grip portion 302 (grip body 302a).

As shown in FIG. 23, the head portion 304 has a head main body 351 and a head cover 355. Further, the head portion 304 has an insertion portion 354 that is inserted into the grip portion 302. The head cover 355 covers the head portion 304 excluding the insertion portion 354.

The head portion 304 has a transmission member 360 that constitutes the transmission portion. The head portion 304 has a first transmission member 360L, a second transmission member 360U, and a third transmission member 360C as the transmission member 360. The transmission member 360 is composed of a first transmission member 360U, a second transmission member 360L, and a third transmission member 360C. The first transmission member 360L is attached to the lower side of the head main body 351. The second transmission member 360U is attached to the upper side of the head main body 351. There are two third transmission members 360C. The third transmission member 360C is attached to the right side of the head main body 351 and the left side of the head main body 351.

The head portion 304 has an elastic body 380. The elastic body 380 is arranged between the first transmission member 360L and the head body 351. The elastic body 380 urges the first transmission member 360L downward (outside the head body 351). The elastic body 380 urges the engaging projections T2 and T3 in the projecting direction by a link mechanism described later. In this embodiment, the elastic body 380 is a coil spring. As the elastic body 380, an elastic body other than the coil spring may be used.

The head portion 304 has a release button 400. The release button 400 is attached to the first transmission member 360L. The release button 400 is fixed to the first transmission member 360L.

In the faucet device 300, the release button 400 is exposed. The release button 400 can be operated (pressed) with a finger. It should be noted that the configuration may be such that the release button 400 is operated by a jig, a tool, or the like, instead of being operated by a finger. Further, it may be possible to operate with both a finger and a jig, a tool, or the like. The release button 400 is a push button. The release button 400 is located below the faucet device 300 (see FIG. 17B).

FIG. 25A is a perspective view of the second transmission member 360U. FIG. 25B is a front view of the second transmission member 360U as viewed from the front side. FIG. 25 (c) is a side view of the second transmission member 360U.

The second transmission member 360U is a symmetrical member as a whole. The second transmission member 360U has an engaging projection T2. The number of engaging protrusions T2 is plural (three). The engagement projection T2 is provided on the upper surface of the second transmission member 360U. The engaging projection T2 has an inclined surface Y2 and a stepped surface D2. The step surface D2 is located in front of the engaging projection T2. The inclined surface Y2 is located behind the engaging projection T2. The inclined surface Y2 is inclined with respect to the specific direction. The inclined surface Y2 is inclined so as to be closer to the center side (lower side) of the head portion 304 toward the rear. The rear edge of the inclined surface Y2 is located at the rear end of the second transmission member 360U. The inclined surface Y2 is an example of the second contact surface referred to in the present application.

The second contact surface does not have to be the inclined surface Y2, but the inclined surface Y2 is preferable from the viewpoint of facilitating the mounting of the head portion 304. The inclined surface Y2 may be a flat surface or a curved surface. A flat surface is preferable from the viewpoint of smooth mounting of the head portion 304 and from the viewpoint of ease of manufacturing.

The second transmission member 360U has a link engaging portion U2. Link engaging portions U2 are provided on each of the left and right sides of the second transmission member 360U. The link engaging portion U2 is a hole (through hole) provided in the downward extending portion EU2.

FIG. 26A is a perspective view of the first transmission member 360L as viewed from above. FIG. 26B is a front view of the first transmission member 360L as viewed from the front side. FIG. 26C is a side view of the first transmission member 360L. FIG. 26D is a perspective view of the first transmission member 360L as viewed from below.

The first transmission member 360L is a member that is symmetrical as a whole. The first transmission member 360L has an engaging projection T3. The number of engaging protrusions T3 is plural (two). The engagement projection T3 is provided on the lower surface of the first transmission member 360L. The engaging projection T3 has an inclined surface Y3 and a stepped surface D3. The step surface D3 is located in front of the engaging projection T3. The inclined surface Y3 is located behind the engaging projection T3. The inclined surface Y3 is inclined with respect to the specific direction. The inclined surface Y3 is inclined so as to be closer to the center side (upper side) of the head portion 304 toward the rear. The rear edge of the inclined surface Y3 is located at the rear end of the first transmission member 360L. The inclined surface Y3 is an example of the second contact surface referred to in the present application.

The second contact surface does not have to be the inclined surface Y3, but the inclined surface Y3 is preferable from the viewpoint of facilitating the mounting of the head portion 304. The inclined surface Y3 may be a flat surface or a curved surface. A flat surface is preferable from the viewpoint of smooth mounting of the head portion 304 and from the viewpoint of ease of manufacturing.

The first transmission member 360L has a link engaging portion L1. Link engaging portions L1 are provided on each of the left and right sides of the first transmission member 360L. The link engaging portion L1 is a hole (through hole) provided in the upward extending portion EL1.

The first transmission member 360L has a slide hole SL1. The slide hole SL1 extends in the vertical direction. The first slide convex portion (not shown) of the head main body 351 is inserted into the slide hole SL1. Due to the sliding between the slide protrusion and the slide hole SL1, the first transmission member 360L can move in the vertical direction while maintaining its posture.

The first transmission member 360L has a spring accommodating portion 370 and a cylindrical protrusion 372. The spring accommodating portion 370 is a space existing around the cylindrical protrusion 372. The coil spring 380 described above is arranged in the spring accommodating portion 370. In this arrangement, a cylindrical protrusion 372 is inserted inside the coil spring 380. By this insertion, the coil spring 380 is held so as to be expandable and contractible.

27 (a) is a perspective view of the release button 400, FIG. 27 (b) is a rear view of the release button 400 as viewed from the rear, and FIG. 27 (c) is a bottom view of the release button 400.

The release button 400 has a pressing surface 402 and a mounting engagement portion 404. The pressing surface 402 is an exposed surface in the faucet device 300. The mounting engagement portion 404 is provided on each of the left and right sides. The mounting engagement portion 404 extends upward. An engaging claw 406 is provided at the upper end of the mounting engaging portion 404.

FIG. 28A is a bottom view of a member in which the release button 400 is fixed to the first transmission member 360L as viewed from below. FIG. 28 (b) is a cross-sectional view taken along the line bb of FIG. 28 (a). FIG. 28 (c) is a cross-sectional view taken along the line cc of FIG. 28 (a).

As described above, the release button 400 is fixed to the first transmission member 360L. As shown in FIG. 28B, the engagement claw 406 of the release button 400 is engaged with the engagement claw 362 of the first transmission member 360L. By this engagement, the release button 400 is fixed. The release button 400 and the first transmission member 360L move integrally. As a matter of course, the first transmission member 360L and the release button 400 may be integrally molded.

FIG. 29A is a perspective view of the third transmission member 360C as viewed from above. FIG. 29B is a plan view of the third transmission member 360C as viewed from above. FIG. 29 (c) is a perspective view of the third transmission member 360C as viewed from below.

The third transmission member 360C is an elongated link member as a whole. The third transmission member 360C has a base portion 390, a rotation support portion 392, a first link portion 394, and a second link portion 396. The rotation support portion 392 is located between the first link portion 394 and the second link portion 396. The first link portion 394 is located on one end side of the third transmission member 360C, and the second link portion 396 is located on the other end side of the third transmission member 360C. The rotation support portion 392 is located at the center of the third transmission member 360C.

In the present embodiment, the rotation support portion 392 is a shaft body having a circular cross section. This shaft extends from the base 390 toward the center of the head 304. In the present embodiment, the first link portion 394 is a shaft body having a circular cross section. This shaft extends from the base 390 toward the center of the head 304. In the present embodiment, the second link portion 396 is a shaft body having a circular cross section. This shaft extends from the base 390 toward the center of the head 304. In the present embodiment, all the shaft bodies extend in the same direction, but they may extend in different directions. Further, these are not limited to the shaft body, and may be replaced with, for example, a hole. In this case, the link engaging portion U2 (FIG. 25) and the link engaging portion L1 (FIG. 26) can be used as the shaft body.

30 (a) to 30 (c) show an assembly 500 in which a transmission member 360 (including a release button 400) is attached to a head main body 351. FIG. 30A is a perspective view of the assembly 500 as viewed from above. FIG. 30B is a perspective view of the assembly 500 as viewed from below. FIG. 30C is a side view of the assembly 500.

As described above, the second transmission member 360U is attached to the upper side of the head main body 351. As shown in FIG. 25A, the second transmission member 360U has a slide hole SL2. The slide hole SL2 extends in the vertical direction. The second slide convex portion 353 (see FIG. 30A) of the head main body 351 is inserted into the slide hole SL2. Due to the sliding between the slide convex portion 353 and the slide hole SL2, the second transmission member 360U can move in the vertical direction while maintaining its posture.

The first transmission member 360L and the second transmission member 360U are connected by a third transmission member 360C. The second transmission member 360U is interlocked with the first transmission member 360L. When the first transmission member 360L moves to the upper side (center side of the head main body 351), the second transmission member 360U moves to the lower side (center side of the head main body 351). When the first transmission member 360L moves downward, the second transmission member 360U moves upward. A link mechanism is composed of a first transmission member 360L, a second transmission member 360U, and a third transmission member 360C. Details of this link mechanism will be described later.

31 (a) is a perspective view of the grip body 302a, FIG. 31 (b) is a plan view of the grip body 302a viewed from above, and FIG. 31 (c) is a bottom view of the grip body 302a viewed from below. Is. As described above, the grip body 302a has an engaging hole E2. A total of five engaging holes E2 are provided. These engaging holes E2 penetrate the grip body 302a. By covering the grip body 302a with the grip cover 302b, the engaging hole portion E2 becomes a recess facing the inner space portion. The engaging hole portion E2 is a recess that opens toward the inner space portion.

The grip body 302a has a release button avoidance portion 303. The release button avoidance portion 303 is provided on the lower side of the grip body 302a. The release button avoidance portion 303 is a missing portion provided along the shape of the release button 400. The release button avoidance unit 303 allows the release button 400 to be installed.

32 (a) is a plan view showing a stage in which the head portion 304 is being attached to the grip portion 302, and FIG. 32 (b) is a cross-sectional view taken along the line bb of FIG. 32 (a). .. FIG. 33 (a) is a plan view showing a normally mounted state in which the head portion 304 has been mounted, and FIG. 33 (b) is a cross-sectional view taken along the line bb of FIG. 33 (a). In the attachment of the head portion 304 to the grip portion 302, the transition from the state (insertion stage) of FIG. 32 to the regular mounting state of FIG. 33 is achieved.

In the mounting step of the head portion 304, first, the insertion of the insertion portion 354 into the inner space portion 302c is started. A state in which a part of the insertion portion 354 is inserted into the inner space portion 302c, but the inclined surfaces Y2 and Y3 are not receiving a force from the first contact surface F2 is also referred to as an insertion start stage. At this insertion start stage, the inclined surfaces Y2 and Y3 (second contact surface) come into contact with the first contact surface F2 (front end surface of the grip portion 302) (see the enlarged portion in FIG. 32 (b)). The inclined surface Y2 of the second transmission member 360U and the inclined surface Y3 of the first transmission member 360L come into contact with the first contact surface F2. At this time, the operation of the release button 400 is unnecessary. The rear end of the inclined surface Y2 is located inside the first contact surface F2 in a non-operating state in which no external force is applied to the operating portion (release button 400). Similarly, the rear end of the inclined surface Y3 is located inside the first contact surface F2 in a non-operating state in which no external force is applied to the operating portion (release button 400). Therefore, the inclined surfaces Y2 and Y3 come into contact with the first contact surface F2 without operating the release button 400. That is, in the non-operated state, all the second contact surfaces Y2 and Y3 come into contact with the first contact surface F2.

In this state, the head portion 304 is pushed into the grip portion 302 (see the black arrow in FIG. 32 (a)). By this pushing, the inclined surfaces Y2 and Y3 are displaced inward (center side of the head portion 304) while being pressed from the first contact surface F2 (see the black arrow in FIG. 32 (b)). The first contact surface F2 slides on the inclined surfaces Y2 and Y3, and the displacement of the inclined surfaces Y2 and Y3 inward proceeds smoothly. As the inclined surface Y2 (engagement projection T2) is displaced, the entire second transmission member 360U is displaced. That is, the second transmission member 360U is displaced downward by pushing the head portion 304. As the inclined surface Y3 (engagement projection T3) is displaced, the entire first transmission member 360L is displaced. That is, the first transmission member 360L is displaced upward by pushing the head portion 304.

When the head portion 304 is further pushed in, the inclined surfaces Y2 and Y3 are further pushed inward by the first contact surface F2, and the engaging projections T2 and T3 reach the regression position. When the head portion 304 is further pushed in, the engaging protrusions T2 and T3 reach the position of the engaging hole portion E2 and enter the engaging hole portion E2 (see FIG. 33 (b)). This is because the first transmission member 360L including the engagement protrusion T3 is urged to the outside (lower side) by the coil spring 380, and the second transmission member 360U including the engagement protrusion T2 is outside (upper side) by the link mechanism. ) Is being urged. When the engaging protrusions T2 and T3 enter the engaging hole portion E2, the normal mounting state (FIG. 33) is achieved. In the normally mounted state, the stepped surface D2 and the inner surface of the engaging hole portion E2 are engaged with each other, so that the head portion 304 is securely locked.

In this way, the engagement projections T2 and T3 are displaced to the regression position due to the contact between the first contact surface F2 and the inclined surfaces Y2 and Y3 (second contact surface) accompanying the insertion of the head portion 304. It is configured in. Due to the contact between the first contact surface F2 and the inclined surfaces Y2 and Y3 (second contact surface) accompanying the insertion of the head portion 304, the engagement projections T2 and T3 do not involve the operation of the operation portion 400. It is configured to be displaced to the regression position. Therefore, the head portion 304 need only be inserted into the grip portion 302, and the operation portion (release button 400) does not need to be operated.

34 (a) and 34 (b) show the first stage of the removal process of the head portion 304. 34 (a) and 34 (b) show a state in which the release button 400 is pressed. In this first step, the release button 400 is pressed (see the black arrow in FIG. 34B). By this pressing, the release button 400 moves inward (upper side). By moving the release button 400, the first transmission member 360L to which the release button 400 is attached also moves inward (upper side). In conjunction with the first transmission member 360L, the second transmission member 360U also moves inward (lower side) (see the black arrow in the enlarged portion of FIG. 34 (b)). The interlocking of the first transmission member 360L and the second transmission member 360U is achieved by a link mechanism described later.

By pressing the release button 400, the engagement protrusions T2 and T3 are moved to the regression position (FIG. 34 (b)). By this movement, the engagement between the engagement protrusions T2 and T3 and the engagement hole portion E2 is released. In the second stage of the process of removing the head portion 304, the head portion 304 is pulled out from the grip portion 302 in a state where the engagement is released (see the black arrow in FIG. 34 (a)). By this pulling out, the removal of the head portion 304 is completed.

As described above, the head portion 304 can be easily attached and detached. To attach the head portion 304, it is sufficient to insert the head portion 304 without operating the operation portion 400. To remove the head portion 304, it is sufficient to pull out the head portion 304 while pressing the operation portion 400. Since there are no external parts such as screws, the parts will not be lost. It can be easily attached and detached with bare hands, and can be attached and detached without using a jig.

This detachable structure is not a rotation method that involves relative rotation between the head portion 304 and the grip portion 302. Therefore, the shape of the joint portion is not limited to the cylindrical shape. As a result, a faucet device having an excellent degree of freedom in shape design is realized. For example, an aesthetically pleasing design such as the faucet device 300 is also possible.

Since the engaging hole portion E2 is covered with the grip cover 302b, it cannot be visually recognized from the outside. The engaging projections T2 and T3 engaged with the engaging hole E2 are also not visible from the outside. Therefore, it is excellent in aesthetics. Further, the exposed surface (pressing surface 402) of the operation unit (release button 400) is located on the lower side (back side) of the faucet device 300. Therefore, the pressing surface 402 is inconspicuous, and the aesthetic appearance of the faucet device 300 is further enhanced.

As described above, the movement of the operation unit (release button 400) is directly transmitted to the engaging protrusion T3, and further transmitted to the engaging protrusion T2 by the link mechanism. In the present embodiment, the transmission units that transmit the movement of the operation unit 400 to the engagement projections T2 and T3 are the first transmission member 360L, the second transmission member 360U, and the third transmission member 360C. Transmission to the engaging projection T2 is achieved by a link mechanism.

The link mechanism that transmits the movement of the operation unit to the engaging projection T2 includes a first transmission member 360L, a second transmission member 360U, and a third transmission member 360C. As described above, the third transmission member 360C has a rotation support portion 392, a first link portion 394, and a second link portion 396 (see FIG. 29). As shown in FIG. 32 (b), the first link portion 394 is rotatably engaged with the link engaging portion L1 (see FIG. 26) of the first transmission member 360L. The second link portion 396 is rotatably engaged with the link engaging portion U2 (see FIG. 25) of the second transmission member 360U. The rotation support portion 392 is the rotation center of the third transmission member 360C. The rotation support portion 392 is rotatably supported by the link support portion 357 (see FIG. 23) of the head main body 351.

The direction of the rotation center line (center line of the rotation support portion 392) of the third transmission member 360C is the left-right direction. The rotation center line of the third transmission member 360C is perpendicular to the front-rear direction. The center line in rotation between the first link portion 394 and the link engaging portion L1 is parallel to the rotation center line of the third transmission member 360C. The center line in rotation between the second link portion 396 and the link engaging portion U2 is parallel to the rotation center line of the third transmission member 360C.

This link mechanism is symmetrical. The engagement between the third transmission member 360C and the other member is established in both the third transmission member 360C on the left side and the third transmission member 360C on the right side.

This link mechanism is a crank mechanism having a third transmission member 360C which is a rotating body and members 360U and 360L which are rotatably engaged with a position deviated from the rotation center of the rotating body. This link mechanism (crank mechanism) links the second transmission member 360U to the first transmission member 360L. When the release button 400 is pressed and the first transmission member 360L moves upward, the second transmission member 360U moves downward. More specifically, when the first transmission member 360L moves upward, the first link portion 394 moves upward, the third transmission member 360C rotates about the rotation support portion 392, and the second link portion 396 moves downward. Move to the side. See the comparison between FIG. 32 (b) or FIG. 33 (b) and FIG. 34 (b). When the release button 400 is released, the reverse movement occurs. That is, when the first transmission member 360L moves downward, the third transmission member 360C rotates in the reverse direction, and the second transmission member 360U moves upward. By this link mechanism (crank mechanism), all the engaging protrusions T2 and T3 regress when the release button 400 is pressed, and all the engaging protrusions T2 and T3 protrude when the release button 400 is released. To do.

As described above, the first transmission member 360L is urged downward. Regardless of the position of the release button 400, the first transmission member 360L is urged downward (in the direction in which the engagement projection T3 protrudes). Further, the first transmission member 360L and the second transmission member 360U are supported so as to be able to slide and move in the vertical direction while maintaining their postures, respectively. Therefore, the movement of the link mechanism is stable.

In the faucet device 300 of the second embodiment, the release button 400 is close to the engagement protrusion T3. Further, the release button 400 is close to the rotation center line of the first transmission member 360L. Therefore, a moment that tilts the first transmission member 360L is unlikely to occur. This configuration contributes to the stable operation of the link mechanism.

In the present embodiment, the outer shape of the head cover 355 is the outer shape of the head portion 304. However, for the portion where the release button 400 is arranged, the outer surface of the release button 400 is the outer shape of the head portion 304. The outer shape of the grip cover 302b is the outer shape of the grip portion 302. The outer shape of the grip portion 302 has a flat shape. Correspondingly, the outer shape of the head portion 304 is also flat.

In the portion where the release button 400 is arranged, the cross-sectional line of the outer shape of the grip portion 302 is also referred to as an operation area cross-sectional line. This outer shape (operation area cross-sectional line) has a wide direction W. As described above, the wide direction W is the direction in which the cross-sectional width is maximized in the cross-sectional line of the operation area.

A release button 400 is provided at the center of the wide direction W (see FIG. 17B). Further, the release button 400 is located below the faucet device 300 (grip portion 302). The bottom view of the faucet device 300 (FIG. 17B) includes the entire release button 400. Therefore, the release button 400 is inconspicuous. In addition, the boundary k1 between the release button 400 and its peripheral member (grip cover 302b) is also located below the grip portion 302. The bottom view of the faucet device 300 (FIG. 17B) includes the entire boundary k1. This boundary k1 is also inconspicuous. The faucet device 300 has an excellent appearance. When a plane parallel to the wide direction W and parallel to the specific direction is a reference plane, the bottom view of the faucet device 300 can be a projection image on the reference plane.

The position of the release button 400 is close to the position of the thumb or index finger when gripping the faucet device 300. The release button 400 arranged at this position is excellent in operability.

The release button 400 is provided at only one place. Operability is high because only one operation is required.

Although the release button 400 is provided at only one place, the engaging protrusions are provided at a plurality of places. Moreover, the engaging protrusions are provided on both the lower side and the upper side of the faucet device 300. By the above-mentioned link mechanism, the number of release buttons 400 is suppressed, and the degree of freedom in the number and position of the engaging protrusions is increased.

The link mechanism has a first transmission member 360L to which the release button 400 is fixed, a second transmission member 360U, and a third transmission member 360C. The third transmission member 360C includes a rotation support portion 392, a first link portion 394 provided on one side of the rotation support portion 392, and a second link portion 394 provided on the other side of the rotation support portion 392. It has a link portion 396. The rotation support portion 392 rotatably supports the third transmission member 360C. The rotation support portion 392 is rotatably supported by another member. The other members are members other than the first transmission member 360L and the second transmission member 360U, and are fixed regardless of the operation of the release button 400. In the second embodiment, the other member is the head body 351. The other member may be a member other than the head body 351.

The first transmission member 360L is rotatably engaged with the first link portion 394, and the second transmission member 360U is rotatably engaged with the second link portion 396. Therefore, when the first transmission member 360L moves in the first direction (for example, upward direction), this movement is converted into the rotation of the third transmission member 360C, and this rotation is further converted into the second direction (for example, the second direction) of the second transmission member 360U. Converted to move downward). Since the first link portion 394 and the second link portion 396 are located on opposite sides of the rotation support portion 392, the first direction and the second direction can be opposite to each other. With this link mechanism, the engagement projection T2 can be moved back and forth in conjunction with the movement of the release button 400 even at a position away from the release button 400.

In the present embodiment, the relationship between the first direction and the second direction is opposite to each other. The relationship between the first direction and the second direction is not limited to the relationship in opposite directions. Depending on the configuration of the link mechanism, the first direction and the second direction can be set in various ways. For example, in addition to the first to third transmission members, another transmission member may be used as a link member to form a link mechanism, so that the first direction and the second direction can be set in various ways. Therefore, the degree of freedom in the position of the engaging protrusion can be increased.

In FIGS. 15 and 17B, the double-headed arrow W1 indicates the width of the cross-sectional line of the operation region in the wide direction W. In FIG. 15, the double-headed arrow N1 indicates the width of the operation area cross-sectional line in the narrow direction N. The larger the curvature in the vicinity of the release button 200, the easier it is to press the release button 200. From this viewpoint, W1 / N1 is preferably 1.5 or more, more preferably 1.7 or more, and more preferably 1.9 or more. There is a limit to reducing the width N1, and from this viewpoint, W1 / N1 is preferably 3.0 or less, more preferably 2.8 or less, and more preferably 2.5 or less.

In FIG. 11C, the double-headed arrow H indicates the height of the operation unit (release button 200). This height H is measured at the cross-sectional line of the operating region. That is, the height of the portion of the cross-sectional line of the operation area formed by the operation pressing surface 202 is the height H. This height H is measured along a direction perpendicular to the moving direction of the operation unit (release button 200). Since the operation unit (release button 200) has a width in a specific direction, there are a plurality of the operation area cross-sectional lines within the range of this width. Although the height differs depending on the cross-sectional line of the operating region, the maximum value of this height is defined as the height H.

In FIG. 11C, the double-headed arrow D indicates the protruding width of the operation unit (release button 200). The protrusion width D is measured at the cross-sectional line of the operation region. That is, the protruding height of the portion of the cross-sectional line of the operating region formed by the operating pressing surface 202 is the protruding height D. The protrusion height D is measured along the moving direction of the operation unit (release button 200). Although the above-mentioned protrusion height differs depending on the cross-sectional line of the operation area, the maximum value of this protrusion height is defined as the protrusion height D.

By increasing the ratio (D / H), it is possible to reduce the size of the head portion 104 while improving the pushing operability. From this viewpoint, the D / H is preferably 0.05 or more, more preferably 0.1 or more, and even more preferably 0.15 or more. If the height H is too small, the pushing operability may be lowered. Further, if the protruding height D is excessive, the designability and the moldability of the release button are deteriorated. From these viewpoints, the D / H is preferably 0.5 or less, more preferably 0.4 or less, and further preferably 0.3 or less.

From the viewpoint of push-in operability, the protrusion height D is preferably 0.5 mm or more, more preferably 1 mm or more, and further preferably 2 mm or more. If the protrusion height D is excessive, it may be difficult to match the curvature of the outer surface of the head with the shape of the operation portion, and the design may be deteriorated. If the release button is a resin molded product, the release button is thick. As a result, shrinkage (dent) may occur during molding, which may reduce moldability. From these viewpoints, the protrusion height D is preferably 5 mm or less, more preferably 4 mm or less, and further preferably 3 mm or less.

From the viewpoint of improving the operability of the release operation, the height H is preferably 6 mm or more, more preferably 8 mm or more, still more preferably 10 mm or more. From the viewpoint of suppressing the increase in size of the faucet device, the height H is preferably 16 mm or less, more preferably 14 mm or less, and further preferably 12 mm or less.

In FIG. 17B, the double-headed arrow W2 indicates the width of the exposed portion of the release button 400 in the left-right direction. This width W2 is measured along the wide direction W. From the viewpoint of operability, the width W2 is preferably 5 mm or more, more preferably 10 mm or more, and more preferably 15 mm or more. From the viewpoint of making the release button 400 inconspicuous, the width W2 is preferably 30 mm or less, more preferably 28 mm or less, and more preferably 25 mm or less. From the viewpoint of making the release button 400 inconspicuous, the ratio (W2 / W1) of the width W2 to the width W1 in the wide direction W is preferably 0.6 or less, more preferably 0.5 or less, and more preferably 0.4 or less. ..

In FIG. 1, what is indicated by the double-headed arrow B is the distance between the open end (first contact surface F1) of the inner space portion 102c and the release button 200. In the measurement of the distance B, the position X2 of the release button 200 is set as the center of the width of the release button 200 in a specific direction. This distance B is measured along a specific direction.

What is indicated by the double-headed arrow L in FIG. 1 is the exposed length of the head portion 104. The length L is the length of the exposed portion of the head portion 104, and does not include the length of the insertion portion 154. This length L is the length from the open end (first contact surface F1) of the inner space portion 102c to the tip of the head portion 104. In the measurement of the length L, the switching operation unit 120 is set to the pushing position. This length L is measured along a specific direction.

As shown in FIG. 1, the position X2 of the operation unit (release button 200) is located closer to the faucet body side than the central position X1 of the exposure length L of the head unit 104.

When operating the release button 200, an operating force is applied to the head portion 104. Ideally, operating forces that are equal and opposite to each other act on the two release buttons 200, and both can cancel each other out. However, in actual operation, it is not only such an ideal operating force. Due to the operating force acting on the release button 200, stress can be concentrated on the boundary between the exposed portion of the head portion 104 and the grip portion 102. This stress can cause play or breakage at the boundary. Since the position X2 of the operation unit (release button 200) is located closer to the faucet body than the central position X1, the moment of force around the boundary portion becomes smaller. Therefore, the stress acting on the connecting portion between the grip portion 102 and the head portion 104 is suppressed.

From the viewpoint of suppressing the stress acting on the connecting portion between the grip portion 102 and the head portion 104, the ratio (B / L) is preferably less than 0.5, more preferably 0.4 or less, and further preferably 0.3 or less. It is preferably 0.2 or less, and particularly preferably 0.2 or less. If the distance B is too small, it may be difficult to support the release button 200. From this viewpoint, the ratio (B / L) is preferably 0.1 or more, more preferably 0.12 or more, and even more preferably 0.15 or more.

Also in the second embodiment, the release button 400 is located closer to the faucet main body than the central position of the exposed length of the head portion 304. Further, the release button 400 is located closer to the faucet body than the exposed portion of the head portion 304. In other words, the release button 400 is located closer to the faucet body than the open end (first contact surface F2) of the inner space portion 302c. The position of the release button 400 is close to the position of the thumb or index finger when the faucet device 300 is naturally grasped. Therefore, the operability is improved. Further, the position of the release button 400 is located on the faucet main body side from the spout forming portion 312 protruding downward from the head portion 304. Therefore, the fingers of the hand gripping the grip portion 302 can operate the release button 400 without being disturbed by the spout forming portion 312. In this respect as well, the operability is improved.

As the material of the head main body 144,351 (insertion portion 154,354), metal and resin are exemplified. Preferred resins include polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP). From the viewpoint of cost, strength and durability, polyoxymethylene (POM) and polyphenylene sulfide (PPS) are more preferable.

Examples of the materials of the grip portions 102 and 302 include metal and resin. Preferred resins include polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP). From the viewpoint of cost, strength and durability, polyoxymethylene (POM) and polyphenylene sulfide (PPS) are more preferable.

Metals and resins are exemplified as the materials of the engaging protrusions T1, T2, and T3. Preferred resins include polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP). From the viewpoint of cost, strength and durability, polyoxymethylene (POM) and polyphenylene sulfide (PPS) are more preferable.

Examples of the materials of the head covers 150 and 355 include metals and resins. Preferred resins include polyoxymethylene (POM), polyphenylene sulfide (PPS), acrylonitrile butadiene styrene copolymer (ABS) and polypropylene (PP). From the viewpoint of cost and appearance, acrylonitrile-butadiene-styrene copolymer (ABS) is more preferable.

As the elastic bodies 180 and 380, compression coil springs, torsion coil springs, leaf springs and the like can be used. From the viewpoint of durability and operability, a compression coil spring is preferable.

As described above, in the present invention, a faucet device having a water purification function and a high degree of freedom in shape is realized.

The present application also describes other inventions that are not included in the invention according to the claims (including the independent claims). Each of the forms, members, configurations, etc. described in the claims and embodiments of the present application is recognized as an invention based on the action and effect of each.

Each of the embodiments, members, configurations, etc. shown in the above embodiments does not include all the embodiments, members, or configurations of these embodiments, but individually includes the invention according to the claim of the present application. It can be applied to all the described inventions.

The device described above can be used in faucets for all purposes.

100, 300 ... Faucet device 102, 302 ... Grip part 102a, 302a ... Grip body 102b, 302b ... Grip cover 102c, 302c ... Inner space part 104, 304 ... Head Parts 110, 310 ... Water spouts 120, 320 ... Switching operation parts 130, 330 ... Push button mechanism 150, 355 ... Head cover 160, 360U, 360L, 360C ... Transmission member 180, 380 ...・ ・ Elastic body 200, 400 ・ ・ ・ Release button (operation part)
V1, V2 ... Switching valves E1, E2 ... Engagement holes T1, T2, T3 ... Engagement protrusions F1, F2 ... First contact surface Y1, Y2, Y3 ... Inclined surface (Second contact surface)

Claims (7)

Grip part with built-in water purification material and
A head portion that is detachably attached to the grip portion and has a discharge port,
Have and
The grip portion has an inner space portion into which a part of the head portion is inserted, an engaging hole portion provided facing the inner space portion, and a first contact surface. ,
The head portion is in the engaging position in the normally mounted state, and the engaging protrusion that engages with the engaging hole portion at this engaging position and a part of the head portion are inserted into the inner space portion. A second contact surface that comes into contact with the first contact surface in the process, an operation unit that can displace the engagement protrusion to a retreating position where the engagement with the engagement hole portion is released, and the operation unit. A transmission unit that transmits the movement of the engaging protrusion to the engaging protrusion, an elastic body that urges the engaging protrusion in the protruding direction,
Have and
A faucet device configured such that the engaging projection is displaced to the regressing position due to the contact between the first contact surface and the second contact surface accompanying the insertion. The grip portion has a grip body and a grip cover that covers at least a part of the grip body.
The engaging hole portion penetrates the grip body and
The faucet device according to claim 1, wherein the engaging hole portion is covered with the grip cover. The operation unit is a release button that can release the engagement by pressing.
At the position where the release button is arranged, the outer shape of the head portion is flat.
The faucet device according to claim 1 or 2, wherein the release buttons are provided on both sides in the wide direction in the flat shape. The faucet device according to any one of claims 1 to 3, wherein the operating portion is located closer to the faucet body side than the central position of the exposed length of the head portion. The faucet device according to claim 1 or 2, wherein the operating portion is located closer to the faucet main body than the exposed portion of the head portion. The faucet device according to claim 1, 2 or 5, wherein the operating unit is located below the faucet device. The transmission unit has a first transmission member to which the operation unit is fixed and has the engagement protrusion, a second transmission member having the engagement protrusion, and a third transmission member.
The third transmission member includes a rotation support portion that is the center of rotation of the third transmission member, a first link portion provided on one side of the rotation support portion, and the other side of the rotation support portion. It has a second link part provided in
The rotary support portion is rotatably supported by another member.
The first transmission member is rotatably engaged with the first link portion.
The second transmission member is rotatably engaged with the second link portion.
When the first transmission member moves in the first direction, the movement in the first direction is converted into the rotation of the third transmission member, and the rotation of the third transmission member moves in the second direction of the second transmission member. The faucet device according to claim 1, 2, 5 or 6, which is converted into the movement of.

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