JP4370622B2 - Hot and cold water mixing device - Google Patents

Description

  The present invention relates to a hot water / water mixing faucet device, and more particularly, to a hot water / water mixing faucet device that adjusts the discharge flow rate by changing the mixing ratio of hot water and water supplied from a water supply / hot water supply pipe by a single operating lever. .

  Japanese Patent Application Laid-Open No. 8-42724 (Patent Document 1) describes a single lever type faucet. FIG. 10 is a partially cutaway side view showing a single lever type faucet which is such a conventional hot and cold water mixing faucet device. As shown in FIG. 10, a conventional single lever type faucet 200 includes a faucet body 202 extending vertically, a water discharge portion 206 provided with a water discharge port 204 extending obliquely upward from an intermediate portion thereof, and a faucet. A hot water / mixing valve 208 built in the main body 202 and an operation lever 210 for operating the hot / cold water mixing valve 208 are provided. Further, the single lever type faucet 200 adjusts the water discharge flow rate by rotating the operation lever 210 in the vertical direction around the axis line oriented in the horizontal direction, and rotates around the axis line oriented in the vertical direction. By doing so, the mixing ratio of hot water and water is adjusted.

  Furthermore, in the conventional single lever faucet 200, hot water and water supplied from below the faucet body 202 flows into a hot water mixing valve 208 disposed at the upper end of the faucet body 202. The hot water mixed in the hot water mixing valve 208 flows out from an outlet (not shown) provided on the bottom surface of the hot water mixing valve 208, and the water discharge portion 206 extends obliquely upward from below the hot water mixing valve 208. The water is discharged from the water outlet 204 through the water.

Japanese Patent Laid-Open No. 8-42724

  However, the single lever faucet 200 having a conventional structure described in Japanese Patent Application Laid-Open No. 8-42724 has a high overall height, so when a single lever faucet is installed on the washstand, it is installed on the back side. There is a problem of getting in the way when looking at the mirror. Here, the height at which the water discharge portion 206 provided with the water discharge port 204 is disposed needs to ensure a necessary height for its function, but from the base end of the water discharge portion 206 of the faucet body portion 202. In addition, it is required to reduce the height of the portion protruding upward and the operation lever 210 as much as possible.

  However, in the single lever faucet 200 having the conventional structure, the hot and cold water mixing valve 208 must be disposed above the base end of the water discharge portion 206, and it is difficult to reduce the overall height of the single lever faucet 200. There is a problem to say. It is also desired to reduce the size of the operating lever 210 and keep its height as low as possible. However, since the operating lever 210 is a part where the operating force is applied by the user, if the operating lever 210 is downsized, the operating lever 210 and the hot and cold water mixing valve There is a problem that it is difficult to secure the required strength of the 208 joints.

Accordingly, an object of the present invention is to provide a compact hot and cold water mixing device with a low overall height.
Another object of the present invention is to provide a hot and cold water mixing faucet device that can prevent an excessive operating force from acting on the coupling portion of the operating lever.

In order to solve the above-described problems, the present invention provides a hot and cold water mixing faucet device that adjusts the discharged water flow rate by changing the mixing ratio of supplied hot water and water with a single operating lever, and is in the vertical direction. Discharge flow rate of hot water and water mixed by changing the mixing ratio of hot water and water by turning around the first axis directed and turning around the second axis oriented in the horizontal direction A hot water / mixing valve unit with an operating rod that can be changed, and a valve unit housing recess for receiving the hot / cold water mixing valve unit are formed at the upper end, and a water supply channel for guiding hot water and water to the hot water / mixing valve unit is built in, respectively. A faucet body portion, a water discharge portion extending in a horizontal direction from the upper end of the faucet body portion, and formed with a spout for discharging mixed hot water and water, an attachment portion coupled to the operation rod, and An operating lever that extends from the mounting portion and is gripped by the user, is rotated together with the operating rod, and is rotated around the second axis of the operating lever by contacting the operating lever. possess a contact portion for restricting the rotation range, the operating lever is formed around the mounting portion, and having a skirt portion covering the opening of the upper end of the valve unit housing recess, the lower end of the skirt portion By abutting with the abutting portion, the rotation of the operation lever is restricted .

According to the present invention configured as described above, the water discharge portion extends substantially horizontally from the upper end of the faucet main body portion, so that the height of the hot and cold water mixing device can be kept low. Further, according to the present invention configured as described above, since the operation lever that is rotated together with the operation rod abuts on the contact portion and restricts the rotation range of the operation lever, an excessive operation force is applied to the operation rod. Does not act, it is possible to reduce the size of the operating rod, and it is possible to reduce the size of the portion protruding upward from the water discharge portion. In addition, the part that comes into contact with the contact part of the control lever is formed as a skirt part that also has the function of covering the opening at the upper end of the recessed part of the valve unit housing, so that the hot and cold water mixing faucet device with good appearance is compact Can

  In the present invention, preferably, the hot / cold water mixing valve unit has a valve outlet on the side surface through which hot water mixed with hot water flows out, and the hot water flowing out from the valve outlet flows into the valve unit housing recess. Then, water is discharged from the water outlet through the water discharge portion water passage of the water discharge portion communicated therewith.

  According to the present invention, since an excessive force is prevented from acting on the operation rod and the hot water / mixing valve unit by the contact portion, a configuration in which the valve outlet is provided on the side surface of the hot / water mixing valve unit is possible. According to the present invention configured as described above, the space between the hot and cold water mixing valve unit and the inner wall of the valve unit housing recess can be used as a water channel, so that the faucet body can be configured compactly. it can.

  In the present invention, preferably, the operating rod and the mounting portion are screwed into one of them, and are coupled by a fixing screw that exerts a pressing force on the other, and the lower end of the skirt portion and the contact portion are fixed. It abuts below the service screw.

  According to the present invention configured as described above, the moment of force transmitted between the operating rod and the mounting portion is reduced when the lower end of the skirt portion and the abutting portion abut below the fixing screw. Since it changes to the moment of force centered on the contact point, the force acting on the fixing screw when transmitting the same moment of force is reduced. As a result, the fixing screw can be formed in a small size, and the operating rod, the operating lever, etc. can be downsized.

In the present invention, it is preferable that the contact portion is constituted by a friction reducing member disposed at a position where the contact portion comes into contact with the operation lever. The friction reduction member is used when the operation lever rotates about the first axis. Reduce friction.
According to the present invention configured as described above, the contact portion and the operation lever are in contact with each other, and even when the rotation around the second axis of the operation lever is restricted, the contact portion and the operation lever are not connected. Thus, the operation lever can be smoothly rotated around the first axis.

  In the present invention, preferably, it further includes an annular cover member attached to the opening at the upper end of the valve unit housing recess, the skirt portion is formed in a hemispherical shape, and the inner peripheral portion and the skirt portion of the cover member are slid. By moving, the rotation around each axis of the operation lever is guided.

  According to the present invention configured as described above, since the skirt portion of the operation lever slides on the cover member, the rotation of the operation lever is guided, and bending stress acting on the operation rod is reduced. Thereby, an operation rod and an operation lever can be reduced in size.

  In the present invention, preferably, it further has an annular cover member attached to the opening at the upper end of the valve unit housing recess, the friction reducing member is formed in an annular shape, and the faucet body is formed on the outer peripheral portion thereof. Friction reducing member positioning and fixing means for positioning and fixing the rotational position of the friction reducing member with respect to the portion, and cover member positioning and fixing means for positioning and fixing the rotational position of the cover member with respect to the friction reducing member are formed.

  According to the present invention configured as described above, the cover member can be easily attached. Moreover, since the rotation position with respect to the faucet main-body part of a cover member is positioned via a friction reduction member, a cover member can be positioned easily.

According to the present invention, it is possible to obtain a compact hot and cold water faucet device having a low overall height.
Moreover, according to the hot and cold water mixing device of the present invention, it is possible to prevent an excessive operating force from acting on the coupling portion of the operating lever.

Next, with reference to the accompanying drawings, a hot and cold water mixing device according to an embodiment of the present invention will be described.
FIG. 1 is a partially cutaway perspective view showing the entire hot and cold water mixing apparatus according to an embodiment of the present invention. FIG. 2 is an exploded perspective sectional view of the hot and cold water mixing device according to the present embodiment. Further, FIG. 3 is a side cross-sectional view of the hot water / water mixing faucet device of the present embodiment in a water stop state, and FIG. 4 is a perspective cross sectional view in a water discharge state. 5 to 8 are plan sectional views of the faucet body. FIG. 9 is a perspective sectional view of the operation lever.

  First, as shown in FIG. 1, a hot and cold water mixing apparatus 1 according to an embodiment of the present invention includes a faucet body 2 that extends in a substantially vertical direction, a horizontal direction extending from the upper end of the faucet body 2, And a water discharge portion 6 provided with a water discharge port 4. Further, the hot and cold water mixing faucet device 1 is attached to the upper part of the faucet main body 2 in order to operate the hot water and water mixing valve unit 8 and to operate the hot water and water mixing valve unit 8 by appropriately mixing hot water and water and adjusting the water discharge flow rate. And an operation lever 10.

  The hot and cold water mixing device 1 of the present embodiment is configured to supply hot water by rotating the operating lever 10 in the left-right direction, that is, by rotating the operating lever 10 around the vertical axis that is the first axis. The mixing ratio of hot water and water supplied from the pipe 12 and the water supply pipe 14 is changed. Further, the hot and cold water mixing faucet device 1 mixes hot water and water by rotating the operating lever 10 in the vertical direction, that is, by rotating the operating lever 10 around the horizontal axis that is the second axis. The discharged water flow rate is adjusted to discharge water from the water discharge port 4 of the water discharge unit 6.

  Next, as shown in FIG. 2, on the back side of the faucet body 2, a drain tap (not shown) of a bowl (not shown) of a wash basin in which the hot and cold water mixing device 1 is installed is opened and closed. A drain plug lever 16 for operation is provided, and the drain plug lever 16 operates a drain plug opening / closing mechanism 16a.

  As shown in FIG. 2, the hot and cold water mixing faucet device 1 includes an annular valve pressing member 18 for fixing the hot and cold water mixing valve unit 8 and a friction reducing member disposed on the valve pressing member 18. A certain slip ring 20 and a cover ring 22 which is a cover member disposed on the slip ring 20 are provided.

Next, the configuration of each component will be described in detail with reference to FIGS.
As shown in FIGS. 1 and 2, the faucet body 2 has a substantially quadrangular prism shape and is installed so as to extend in a substantially vertical direction. Further, a valve unit housing recess 2 a for housing the hot and cold water mixing valve unit 8 is provided at the upper end of the faucet body 2. Further, a hot water supply pipe 12 and a water supply pipe 14 are connected to the lower end of the faucet main body 2, and the supplied hot water and water are supplied to the two pieces formed in the faucet main body 2. It is configured to be guided to the hot and cold water mixing valve unit 8 by a water supply path 2b (only hot water is shown in FIG. 2).

  As shown in FIGS. 1 and 2, the water discharger 6 has a tubular shape with a rectangular cross section, and is integrated with the faucet body 2 so as to extend substantially horizontally from the upper end of the faucet body 2. Is formed. The water discharge portion water passage 6 a in the water discharge portion 6 is configured to communicate with the valve unit housing recess 2 a of the faucet main body portion 2. Moreover, the upper surface of the water discharge part 6 is comprised so that the upper end surface of the faucet main-body part 2 may be flush | level, ie, the upper surface of the water discharge part 6 and the upper end surface of the faucet main-body part 2 may comprise the same plane. Yes. Further, a water outlet 4 is formed on the lower surface of the tip of the water discharger 6, and the hot water guided through the water discharger water passage 6 a inside the water discharger 6 is discharged. A rectifying cap 4 a is attached to the water outlet 4.

Next, with reference to FIG. 5 thru | or 8, the shape of the water flow path formed in the faucet main-body part 2 and the water discharging part 6 is demonstrated. 5 to 8 are plan sectional views taken along the lines vv, vi-vi, vii-vii, and viii-viii in FIG. 3 (however, they are arranged in the faucet body 2). The hot and cold mixing valve unit 8 is not shown in a sectional view for the sake of simplicity.
As shown in FIG. 5, the valve unit accommodation recessed part 2a formed in the faucet main-body part 2 has a substantially square cross-sectional shape in the lower part. The hot water mixed in the hot water mixing valve unit 8 flows out from the valve outlet 28 (FIGS. 3 and 4) provided on the side surface thereof, and flows between the hot water mixing valve unit 8 and the valve unit housing recess 2a.

  Furthermore, as shown in FIG. 6, a load support portion 2d (also shown in FIGS. 3 and 4), which is an annular protrusion, is formed in a substantially middle portion of the valve unit housing recess 2a. When the load support portion 2d abuts against the side surface of the hot / cold water mixing valve unit 8, the lateral movement of the hot / water mixing valve unit 8 is restricted. The hot water flowing out from the hot water mixing valve unit 8 rises through the passage 2e formed by cutting out the load support portion 2d. The passage 2e is formed between the cylindrical side surface of the hot and cold water mixing valve unit 8 and the two corners on the front side of the valve unit housing recess 2a, and has a generally triangular cross section.

  Furthermore, as shown in FIG. 7, the valve unit housing recess 2a is formed to have a circular cross section above the load support portion 2d. The hot water that has risen through the passage 2e in FIG. 6 rises through the two transition passage water passages 6b shown in FIG. 7 in the portion that transitions from the faucet body 2 to the water discharge portion 6. Further, the hot water rising through the two transition portion water passages 6b flows into the water discharge portion water passage 6a of the water discharge portion 6 communicating with each of the transition portion water passages 6b as shown in FIG. Flows out of 4.

  On the other hand, as shown mainly in FIG. 2, the valve pressing member 18 includes an annular upper ring portion 18a having a small diameter and an annular lower ring portion 18b having a large diameter. A male screw is formed on the outer periphery of the lower end of the lower ring portion 18b, and is configured to be screwed with a female screw 2f formed on the inner wall surface of the valve unit housing recess 2a. With the hot water mixing valve unit 8 received in the valve unit housing recess 2a, the male screw of the lower ring portion 18b and the female screw 2f of the valve unit housing recess 2a are screwed together, whereby the valve pressing member 18 is moved to the hot water mixing valve unit 8. The shoulder portion 8a is pressed downward, and the hot and cold water mixing valve unit 8 is fixed to the faucet body portion 2. In a state where the hot / cold water mixing valve unit 8 is fixed, the upper part of the hot / cold water mixing valve unit 8 is received by the upper ring portion 18a of the valve pressing member 18, and the operation rod 24 of the hot / cold water mixing valve unit 8 is moved upward from the upper ring portion 18a. Protrusively. In addition, an O-ring 18c is attached to the upper outer periphery of the lower ring portion 18b to ensure the water tightness of the valve unit housing recess 2a.

  The slip ring 20 is an annular member whose outer periphery is bent upward, and is disposed on the lower ring portion 18 b so as to surround the upper ring portion 18 a of the valve pressing member 18. Further, a cantilever-shaped positioning tongue 20a extending upward is formed on the outer periphery of the slip ring 20 (FIG. 2), and the positioning tongue 20a is bent above the slip ring 20. It is formed so as to protrude upward from the portion. A protrusion 20b is formed on the outer surface of the positioning tongue 20a (FIG. 1). The protrusion 20b is received in a positioning recess 2c (FIG. 2) formed on the inner wall surface of the valve unit housing recess 2a, whereby the rotational position of the slip ring 20 is positioned. In the present embodiment, the upper surface of the slip ring 20 functions as a contact portion, and contacts the operation lever 10 to restrict the rotation of the operation lever 10. Further, the slip ring 20 is formed of a resin having a smooth surface, and is configured such that the friction with a member in contact with the slip ring 20 is reduced. Further, in the present embodiment, the protrusion 20b functions as a friction reducing member positioning and fixing unit, and the positioning tongue 20a functions as a cover member positioning and fixing unit.

  As shown in FIG. 9, the operation lever 10 includes a plate-shaped gripping portion 10a gripped by the user, a mounting portion 10b attached to the operating rod 24 of the hot and cold water mixing valve unit 8, and a periphery of the mounting portion 10b. And a formed hemispherical skirt portion 10c. Furthermore, the grip portion 10a includes a base end portion 10d that is directed substantially in the horizontal direction and a distal portion 10e that is bent from the base end portion 10d and is directed obliquely upward when the water stops. The distal portion 10e is bent so that the angle θ between the longitudinal axis L and the axis of the upper end of the operating rod 24 is an acute angle smaller than 90 ° (see FIG. 3). Further, the distal portion 10e is bent at an angle such that the longitudinal axis L thereof passes through the vicinity of the support shaft 24b of the operation rod 24 (see FIG. 3). Furthermore, the skirt portion 10c has a function of contacting the slip ring 20 to restrict the rotation range of the operation lever 10 and a function of covering the opening of the valve unit housing recess 2a to improve the appearance.

  In addition, the mounting portion 10b is formed with a quadrangular prism-shaped recess 10f that receives the operation rod 24. A set of opposing surfaces of the inner wall of the recess 10f is composed of a first opposing surface 10g and a second opposing surface 10h. The first facing surface 10g has an attachment hole 10i that is a small hole through which a tool for tightening a scissors screw 26 that is a fixing screw screwed into a female screw 24a (FIG. 2) provided on the operation rod 24 is passed. Is formed. Further, a skirt portion hole 10j, which is a small hole aligned with the attachment portion hole 10i, is formed on the front side of the skirt portion 10c, and a tool for tightening the scissors screw 26 can be inserted from the outside. The skirt portion hole 10j is formed as a small hole on the lower side of the gripping portion 10a, so that the appearance is not impaired, and the tool is guided when the tool is inserted to tighten the scissors screw 26. Fulfill.

Next, a structure for attaching the operation lever 10 to the operation rod 24 will be described mainly with reference to FIGS. 3 and 9.
As shown in FIG. 3, the upper end portion of the operation rod 24 is received in a recess 10 f formed in the attachment portion 10 b of the operation lever 10. In this state, the threaded screw 26 screwed into the female screw 24a of the operating rod 24 in advance is a skirt hole 10j provided in the skirt 10c of the operating lever 10 and an attachment hole 10i provided in the attachment 10b. Is consistent with For this reason, a hexagon wrench (not shown) is inserted through the skirt hole 10j and the attachment hole 10i, and this is engaged with a hexagonal columnar hole (not shown) formed at the end of the scissors screw 26. Thus, the screw 26 can be rotated with a hexagon wrench. By rotating, the scissors screw 26 protrudes from the first side surface 24c of the operating rod 24, and its tip abuts against the second facing surface 10h of the mounting portion 10b. When the scissors screw 26 is further tightened, the tip of the scissors screw 26 slightly bites into the second facing surface 10h, and the first facing surface 10g opposite the second facing surface 10h is the second side surface 24d of the operating rod 24. Pressed against. The operating lever 10 is fixed to the operating rod 24 by this pressing force.

  On the other hand, the cover ring 22 is a ring-shaped member having a flat upper surface as shown mainly in FIG. The cover ring 22 is configured to be fitted into the upper end of the valve unit housing recess 2 a and is disposed around the skirt portion 10 c of the operation lever 10. A cutout portion 22 a that receives the positioning tongue portion 20 a of the slip ring 20 is formed at one location on the lower circumference of the cover ring 22. By fitting the cover ring 22 into the valve unit housing recess 2a so that the notch 22a receives the positioning tongue 20a, the rotational position of the cover ring 22 is positioned. Thus, since the cover ring 22 is positioned with respect to the slip ring 20 and, as described above, the slip ring 20 is positioned with respect to the faucet body 2, the rotational position of the cover ring 22 is eventually obtained. Is positioned with respect to the faucet body 2. Thereby, the index (marks such as “H” indicating high temperature and “C” indicating low temperature) attached to the cover ring 22 can be easily positioned.

  Further, an O-ring 22b is fitted on the outer periphery of the cover ring 22. By fitting the cover ring 22 so as to crush the O-ring 22b, the cover ring 22 can be easily detached from the valve unit housing recess 2a. It is inserted so that there is no. A tapered surface 22 c is formed on the lower inner periphery of the cover ring 22. The movement of the operating lever 10 is guided by the skirt portion 10c of the operating lever 10 sliding with the tapered surface 22c. As the skirt portion 10c slides on the tapered surface 22c, the operating force applied to the operating lever 10 is also transmitted to the tapered surface 22c, and the bending stress acting on the operating rod 24 is reduced.

  Next, the configuration of the hot and cold water mixing valve unit 8 will be described mainly with reference to FIGS. The hot and cold water mixing valve unit 8 includes an operation rod 24, a valve cover 30, a fixed disk 32 housed in the valve cover 30, and a movable disk 34 movable with respect to the fixed disk 32.

  The operation rod 24 is configured to be rotatable around a support shaft 24b oriented in the horizontal direction. Further, the support shaft 24 b is configured to be rotatable with respect to the valve cover 30 about a vertical axis passing through the center of the hot / cold water mixing valve unit 8. Accordingly, the operation rod 24 is supported so as to be rotatable about the support shaft 24b and at the same time to be rotatable about the vertical axis.

  The fixed disk 32 is a substantially disk-shaped member in which three through holes 32 a and 32 b are formed, and is fixed to the valve cover 30. The two through holes 32b (only one is shown) are configured to communicate with two water supply passages 2b (only one shown) provided in the faucet body 2 and supplied hot water and water Respectively flows into the two through holes 32b.

  The movable disk 34 is a substantially disk-shaped member, and an operation rod receiving recess 34a is formed on the upper surface, and a water passage recess 34b is formed on the lower surface. The operation rod receiving recess 34a receives the lower end portion of the operation rod 24, and the movable disk 34 is moved in the front-rear direction with respect to the fixed disk 32 by rotating the operation rod 24 about the support shaft 24b. It is comprised so that. Further, when the operation rod 24 is rotated around the vertical axis, the movable disk 34 engaged therewith is also rotated with respect to the fixed disk 32.

  Further, the water passage recess 34b on the lower surface of the movable disk 34 is configured to appropriately open and close the two through holes 32b of the fixed disk 32 when the movable disk 34 is moved relative to the fixed disk 32. . That is, in the state where the movable disk 34 shown in FIG. 3 is moved to the rearmost side, the two through holes 32b are completely closed by the movable disk 34 and are in a water-stopped state. From this state, when the operating rod 24 is rotated about the support shaft 24b and the movable disk 34 is moved forward, the two through holes 32b of the fixed disk 32 and the water passage recess 34b of the movable disk 34 overlap. become. In this state, hot water and water that have flowed in through each through-hole 32b flow into the water flow recess 34b and are mixed, and then flow out of the valve outlet 28 to enter a water discharge state. In the state where the movable disk 34 shown in FIG. 4 is moved most forward, each through hole 32b is in the most open state, and the water discharge flow rate is also maximized.

  On the other hand, when the operating rod 24 is rotated about the vertical axis and the movable disk 34 is rotated, the opening degree of each through hole 32b changes. That is, when the operating lever 10 (operating rod 24) is rotated in the direction of H in FIG. 4, the opening degree of the through hole 32b communicating with the hot water supply pipe 12 becomes small, and the water supply pipe 14 The opening degree of the other through hole 32b communicating with is increased. Thereby, since the inflow amount of water decreases and the inflow amount of hot water increases, the temperature of the hot water discharged becomes high. Conversely, when the operation lever 10 is rotated in the direction C in FIG. 4, the inflow amount of water increases and the inflow amount of hot water decreases, so the temperature of the discharged hot water decreases. As shown in FIG. 3, when the movable disk 34 is moved to the rearmost position, the through holes 32b remain closed even when the operation rod 24 is rotated about the vertical axis. The water stop state is maintained.

  Next, the operation of the hot and cold water mixing apparatus 1 according to the embodiment of the present invention will be described. First, in the water stop state shown in FIG. 3, since the movable disk 34 closes the two through holes 32b provided in the fixed disk 32, the hot water supply pipe 12 and the water supply pipe 14 are supplied. The water and hot water that have been used do not flow into the hot water / mixing valve unit 8 and the water is stopped. Next, when the operating lever 10 (operating rod 24) is rotated upward about the support shaft 24b, the movable disk 34 is moved forward, and the two through holes 32b are opened to enter a water discharge state. When the operation lever 10 is directed to the front surface of the hot and cold water mixing device 1, the opening degrees of the two through holes 32 b are substantially equal, and almost the same amount of water and hot water flows into the hot water and water mixing valve unit 8. To do.

  The water and hot water that have flowed into the hot water / mixing valve unit 8 are mixed and flowed out from the valve outlet 28 on the side surface of the hot water / mixing valve unit 8. The hot water flowing out from the valve outlet 28 flows into the valve unit housing recess 2a and rises. The hot water rising in the valve unit housing recess 2a further rises through two passages 2e (FIG. 6) between the side surface of the hot water / mixing valve unit 8 and the wall surface of the valve unit housing recess 2a. It flows into the water discharge part waterway 6a through 6b (FIG. 7). Hot water that has flowed into the water discharge portion water passage 6 a is discharged from the water discharge port 4.

  When the operation lever 10 is rotated upward, the rear end of the skirt portion 10c comes into contact with the upper surface of the slip ring 20 as a contact portion, and the operation lever 10 cannot be rotated any further. For this reason, the excessive rotation of the operation lever 10 is restricted by the contact of the skirt portion 10c and the slip ring 20, and the operation rod 24 is moved to the movable end and the rotation of the operation lever 10 is restricted. The stress acting on the operation rod 24 and the hot / cold water mixing valve unit 8 is reduced. Further, the stress acting on the hot / cold water mixing valve unit 8 is reduced, so that the valve outlet can be provided on the side surface of the valve cover 30.

  Further, the distal portion 10 e of the operation lever 10 gripped by the user is bent with respect to the base end portion 10 d and is directed to make an acute angle with respect to the axis of the upper end portion of the operation rod 24. For this reason, the direction of the operating force applied by the user at a right angle to the distal portion 10e is different from the direction in which the first facing surface 10g and the second side surface 24d pressed against each other are directed. The component of the operating force in the direction of pulling out the lever 10 from the operating rod 24 is reduced.

  On the other hand, when the operation lever 10 is rotated rightward or leftward, the mixing ratio of the flowing hot water and water changes, and the temperature of the hot water discharged can be adjusted. Further, since the rear end of the skirt portion 10c is in contact with the slip ring 20, the frictional force acting between them is small, and the operation lever 10 can be easily rotated in the left-right direction.

  On the contrary, when the operation lever 10 is rotated downward, the front end of the skirt portion 10c comes into contact with the upper surface of the slip ring 20 and enters a water stop state, and the operation lever 10 can be further rotated downward. The operation lever 10 is restricted from rotating. Here, the moment of the force transmitted from the operating lever 10 to the operating rod 24 is the contact portion between the threaded screw 26 and the second opposing surface 10h and the first opposing surface 10g until the skirt portion 10c contacts the slip ring 20. And only the force acting on the contact portion of the second side surface 24d. Next, when the skirt portion 10c and the slip ring 20 come into contact with each other, the moment of force due to the operating force acting on the operation lever 10 is the moment of force around the point where the lower end of the skirt portion 10c and the slip ring 20 come into contact. To change.

  Here, the point where the lower end of the skirt portion 10c and the slip ring 20 abuts is located at a position away from the operating rod 24 below the scissors screw 26. The forces acting on the contact portion between the screw 26 and the second opposing surface 10h and the contact portion between the first opposing surface 10g and the second side surface 24d are very small. For this reason, it is possible to prevent an excessive force from acting on the operation rod 24 and the hot / cold water mixing valve unit 8 from the operation lever 10. On the other hand, in the conventional faucet device, since the rotation range of the operation lever is not restricted by the contact between the operation lever and the contact portion, the force generated by the operation force after the operation lever reaches the movable end. This moment is supported only by the force acting on the connecting portion between the operating lever and the operating rod, and a very large force acts on the connecting portion.

  According to the hot and cold water mixing faucet device of the embodiment of the present invention, since the water discharge portion extends substantially horizontally from the upper end of the faucet main body, the overall height of the hot water and water mixing faucet device can be kept low. Moreover, according to the hot and cold water mixing faucet device of the present embodiment, the operation lever that is rotated together with the operation rod contacts the slip ring and restricts the rotation range of the operation lever. Does not act, it becomes possible to reduce the size of the operation rod, and it is possible to reduce the size of the portion protruding upward from the water discharge portion.

  Further, according to the hot and cold water mixing faucet device of the embodiment of the present invention, the contact portion prevents an excessive force from acting on the operation rod and the hot and cold water mixing valve unit. The structure provided in the side surface of this becomes possible. For this reason, since the space between the hot and cold water mixing valve unit and the inner wall of the valve unit housing recess can be used as a water channel, the faucet body can be made compact.

  Furthermore, according to the hot and cold water mixing faucet device of the present embodiment, the skirt portion of the operation lever has the function of restricting the rotation range of the operation lever and the function of covering the opening at the upper end of the valve unit housing recess. Thus, a hot and cold water mixing faucet device with high design can be configured in a compact manner.

  Further, according to the hot and cold water mixing device of the present embodiment, the lower end of the skirt portion and the slip ring abut below the saddle screw, so the moment of force transmitted between the operating rod and the mounting portion is It changes to a moment of force centered on the point where the lower end of the skirt portion abuts, and a large moment of force can be transmitted without a large force acting on the male screw. Thereby, it becomes possible to form a small screw, and an operation rod, an operation lever, etc. can be reduced in size.

Furthermore, according to the hot and cold water mixing faucet device of the present embodiment, the slip ring and the lower end of the skirt portion of the operation lever are in contact with each other, and even when the rotation about the horizontal axis of the operation lever is restricted, Since the friction between the operating lever and the operating lever is reduced, the operating lever can be smoothly rotated about the vertical axis.
In addition, according to the hot and cold water mixing device of this embodiment, the skirt portion of the operation lever slides on the cover ring, so that the rotation of the operation lever is guided and bending stress acting on the operation rod is reduced. . Thereby, an operation rod and an operation lever can be reduced in size.

  Furthermore, according to the hot and cold water mixing faucet device of the present embodiment, the slip ring is positioned and fixed by the projection of the slip ring being received in the positioning recess of the faucet body, and the notch of the cover ring is the slip ring. The cover ring is positioned and fixed by receiving the positioning tongue. Therefore, since the cover ring is positioned via the slip ring with respect to the faucet body, the cover ring can be easily and accurately positioned.

  As mentioned above, although preferable embodiment of this invention was described, a various change can be added to embodiment mentioned above. In particular, in the above-described embodiment, the slip ring is disposed so as to contact the skirt portion of the operation lever and the contact portion is formed. However, the slip ring may not be disposed. In this case, the valve pressing member comes into contact with the skirt portion and functions as the contact portion, but any member can function as the contact portion.

  In the above-described embodiment, the operation lever and the hot / cold water mixing valve unit are coupled by the thread screw, but a normal screw having a bolt head other than the thread screw can also be used as the fixing screw. Furthermore, the screw thread is screwed into the female screw formed on the operating rod, but the fixing screw is screwed into the female screw formed on the mounting portion of the operating lever, and a pressing force is applied to the operating rod, thereby operating the operating lever. And an operating rod may be combined.

1 is a perspective view showing a part of an entire hot and cold water mixing apparatus according to an embodiment of the present invention. 1 is an exploded perspective sectional view of a hot and cold water mixing device according to an embodiment of the present invention. It is side surface sectional drawing in the water stop state of the hot and cold water mixing faucet apparatus of embodiment of this invention. It is a perspective sectional view in the water discharging state of the hot and cold water mixing faucet device of the embodiment of the present invention. FIG. 5 is a plan sectional view taken along line vv in FIG. 3. FIG. 5 is a plan sectional view taken along line vi-vi in FIG. 3. FIG. 4 is a plan sectional view taken along line vii-vii in FIG. 3. FIG. 4 is a plan sectional view taken along line viii-viii of FIG. 3. It is a perspective sectional view of an operation lever. It is a side view which shows the conventional single lever type water faucet partly broken.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water mixing faucet device 2 Water faucet main-body part 2a Valve unit accommodation recessed part 2b Water supply path 2c Positioning recessed part 2d Load support part 2e Passage 2f Female screw 4 Water outlet 6 Water discharging part 6a Water discharging part water path 6b Transition part water path 8 Hot water mixing valve Unit 8a Shoulder part 10 Operation lever 10a Grasping part 10b Attachment part 10c Skirt part 10d Base end part 10e Distal part 10f Recess 10g First opposing surface 10h Second opposing surface 10i Attachment part hole 10j Skirt part hole 12 Hot water supply pipe 14 Water supply pipe 16 Drain plug lever 16a Opening / closing mechanism 18 Valve pressing member 18a Upper ring portion 18b Lower ring portion 18c O-ring 20 Slip ring 20a Positioning tongue 20b Projection 22 Cover ring 22a Notch portion 22b O-ring 22c Tapered surface 24 Operation Rod 24a Female thread 24b Support shaft 24c 1 side surface 24d second side surface 26 threaded screw 28 valve outlet 30 valve cover 32 fixed disk 32a through hole 32b through hole 34 movable disk 34a operation rod receiving recess 34b water passing recess 200 conventional single lever faucet 202 water faucet Main body 204 Water outlet 206 Water outlet 208 Hot water mixing valve 210 Control lever

Claims (6)

A hot water and water mixing faucet device that adjusts the flow rate of discharged water by changing the mixing ratio of hot water and water supplied by a single operating lever,
Hot water and water mixed by changing the mixing ratio of hot water and water by turning around the first axis oriented in the vertical direction and changing around the second axis oriented in the horizontal direction A hot and cold water mixing valve unit equipped with an operation rod capable of changing the water discharge flow rate of
A valve unit housing recess for receiving the hot water / water mixing valve unit is formed at the upper end, and a faucet body portion containing a water supply channel for guiding hot water and water to the hot water / water mixing valve unit, and
A water discharge part extending in a generally horizontal direction from the upper end of the faucet body part, and having a water discharge port for discharging mixed hot water and water; and
An operating portion that is coupled to the operating rod, and an operating lever that extends from the mounting portion and is gripped by a user and is rotated together with the operating rod;
A contact portion for restricting a rotation range of rotation about the second axis of the operation lever by contacting the operation lever;
I have a,
The operation lever has a skirt portion formed around the mounting portion and covering an opening at an upper end of the valve unit housing recess, and the lower end of the skirt portion contacts the contact portion, thereby A hot-and-water mixing faucet device characterized in that the rotation of the lever is restricted .   The hot and cold water mixing valve unit has a valve outlet on the side surface through which hot water mixed with hot water and water flows out, and hot water that has flowed out of the valve outlet flows into the valve unit housing recess and communicates therewith. The hot / cold water faucet device according to claim 1, wherein water is discharged from the water discharge port through the water discharge portion water passage of the water discharge portion. The operating rod and the mounting portion are screwed into one of them, and are coupled by a fixing screw that exerts a pressing force on the other, and the lower end of the skirt portion and the abutting portion are connected to the fixing screw. mixing valve apparatus according to claim 1, wherein the contact at below. The contact portion is constituted by a friction reducing member disposed at a position where the contact portion comes into contact with the operation lever. The friction reduction member is configured to reduce friction when the operation lever rotates about the first axis. The hot and cold water mixing faucet device according to any one of claims 1 to 3 , which is reduced. Furthermore, it has an annular cover member attached to the opening at the upper end of the valve unit housing recess, the skirt portion is formed in a hemispherical shape, and the inner peripheral portion of the cover member and the skirt portion slide. The hot / cold water faucet device according to any one of claims 1 to 4 , wherein the operation lever guides the rotation of each of the operation levers about each axis. Furthermore, it has an annular cover member that is attached to the opening at the upper end of the valve unit housing recess, the friction reducing member is formed in an annular shape, and the outer peripheral portion has the friction against the faucet body portion. positioning a rotational position of the reducing member, the friction reducing members positioned fixing means for fixing, and the friction reducing positioning a rotational position of the cover member relative to member, according to claim 4, wherein the cover member positioning fixing means for fixing are formed Water tap device.

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