JP6440091B2 - Automatic faucet device - Google Patents

Description

  The present invention relates to an automatic faucet device having a sensor.

  Conventionally, an automatic faucet device mounting structure in which an automatic faucet device with a sensor is attached to a faucet mounting plate is known (see, for example, Patent Document 1). For example, in the automatic faucet device described in Patent Document 1, the faucet body is provided with a flange, and this flange is brought into contact with the rear edge of the faucet mounting hole, and the nut is formed from the front side of the faucet. The faucet body is fixed to the faucet mounting plate by screwing into the faucet. Since the sensor is provided integrally with the faucet, the sensor can be fixed together by attaching the faucet body to the faucet mounting plate. On the other hand, the faucet body can be removed from the faucet mounting plate by removing the nut screwed into the faucet from the front side of the faucet mounting plate. Since the sensor is provided integrally with the faucet, when the faucet body is removed from the faucet mounting plate, the sensor is also removed from the faucet mounting plate.

  However, for example, in the automatic faucet device described in Patent Document 1, in order to remove the sensor, it is necessary to remove the faucet body from the faucet mounting plate. For this reason, replacement of the sensor or the like cannot be performed on the front side of the faucet mounting plate, but must be performed on the rear side.

  Therefore, an automatic faucet device that can perform sensor replacement or the like on the front side of the faucet mounting plate is known.

Japanese Patent Laid-Open No. 11-324044

  However, in the conventional automatic faucet device described above, as a sensor replacement method, a structure in which the sensor is taken out after removing the water discharge cap attached to the water discharge port and the water discharge joint connected to the water supply pipe in this order, or in the lower part of the spout. The structure was provided, the bolt that fixed the water discharge joint in the spout was removed, and after the water discharge joint and the sensor were both taken out, the water discharge joint was pulled out from the water discharge pipe and the sensor was removed. Therefore, there are a plurality of steps until the sensor is replaced, and there is a problem that it takes time and effort.

  Then, this invention is made | formed in view of the above, Comprising: It aims at providing the automatic water tap apparatus which can remove a sensor easily.

An automatic faucet device according to an aspect of an embodiment is an automatic faucet device fixed to a faucet attachment member having a faucet attachment hole, and a water discharge joint connected to a water pipe and an external member covering the water discharge joint; A body integrally formed, fixing means for fixing the body to the faucet mounting member from the front side of the faucet mounting member, and a sensor that is disposed inside the body and detects a detection target. , wherein the sensor is Ri removable der the body from the front side of the faucet mounting member and withdrawn from the faucet mounting member to the front side of the faucet mounting member, the sensor relative to the body The sensor has a protrusion that protrudes from the lower surface to the water discharge joint side, at least a part of the sensor is provided on the upper side of the water discharge joint. The water discharge joint is A first groove portion, and a second groove portion that is larger than the outer diameter of the first groove portion and is formed on the downstream side of the first groove portion, and is inserted into the first groove portion. A plate member in which an insertion portion that can be inserted into the second groove portion and an insertion portion that can be fitted into the second groove portion is formed continuously, and a guide that is fitted into the first groove portion. A member, and the restricting means is configured such that the guide member is externally fitted to the first groove and the fitting portion is externally fitted to the second groove. On the other hand, the movement of the sensor is restricted .

According to the automatic water faucet device having such a configuration, the water discharge joint connected to the water pipe and the external member covering the water discharge joint are integrally formed, so that the external member compared to the conventional automatic water faucet device Therefore, the trouble of removing the water discharge joint can be reduced. Further, the sensor can be removed from the front side by releasing the fixing by the fixing means from the front side of the faucet mounting member and pulling out the main body. Therefore, the sensor can be easily removed.
Further, according to the automatic faucet device having such a configuration, since the regulation means for regulating the movement of the sensor to the rear side with respect to the main body is provided, when the sensor is pushed from the front side during use, When removing the main body from the faucet mounting plate, the sensor can be prevented from moving to the rear side of the faucet mounting plate.
Further, according to the automatic faucet device having such a configuration, the sensor can be detached from the main body simply by shifting the guide member from the first groove and removing the fixing plate from the water discharge joint. Therefore, the sensor can be easily removed with a simple configuration.

  The fixing means includes a nut integrated with the faucet mounting member and a bolt to be screwed into the nut, and the main body is regulated at a predetermined position by a bolt head of the bolt, and a portion other than the bolt head is provided. It has the through-hole which can penetrate.

  According to the automatic faucet device having such a structure, since the nut is integrated with the faucet mounting member, when the main body is fixed to the faucet mounting member, a separate nut or female threaded plate is processed. As compared with the case where members such as these are used, it is not necessary to hold these members when the main body is fixed or released, and the sensor can be easily removed.

  Further, the water pipe is flexible, and the water discharge joint has a connection part to which the water pipe is connected, and the connection part descends forward with the main body fixed to the faucet mounting member. It is formed so that it may incline.

  According to the automatic faucet device having such a configuration, the water pipe is flexible, and the connecting portion of the water discharge joint is inclined downward toward the front in a state where the main body is fixed to the faucet mounting member. Therefore, even if the water pipe is not intentionally loosened, the length of the water pipe can be extended, and when the sensor is removed, the main body on which the sensor is disposed can be easily pulled out. .

  According to the present invention, in an automatic faucet device fixed to a faucet attachment member having a faucet attachment hole, the sensor can be easily removed.

It is a front view which shows the hand-washing machine unit provided with the automatic faucet apparatus which concerns on embodiment of this invention. It is sectional drawing which shows the hand-washing machine unit provided with the automatic faucet apparatus which concerns on embodiment of this invention. It is a disassembled perspective view which shows the automatic water tap apparatus which concerns on embodiment of this invention. In the automatic faucet device concerning the embodiment of the present invention, it is a perspective view showing the state before restricting the movement of a sensor. It is a top view which shows the fixing plate of the automatic water faucet apparatus which concerns on embodiment of this invention. It is a perspective view which shows the state which controlled the movement of the sensor in the automatic water faucet device which concerns on embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.

  A hand washing unit including an automatic faucet device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing a hand-washing unit equipped with an automatic faucet device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a hand-washing unit equipped with an automatic faucet device according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the hand washing unit 1 includes a hand washing device 2 and an automatic water faucet device 20. The handwashing unit 1 is installed, for example, along the side wall of the toilet room for the purpose of washing the user after the toilet.

  The hand-washing device 2 includes a bowl portion 4 that is located below the hand-washing space A and receives water. The bowl part 4 has a bottom wall part 10 in which a drain port 8 for draining water discharged from the automatic faucet device 20 is formed, and a continuous front wall part 12, rear wall part 14, and both side wall parts 16. A peripheral wall is formed upright from the periphery of the bottom wall portion 10. The rear wall portion 14 plays a role of receiving water splash during hand washing. The upper portion of the rear wall portion 14 is formed so as to be inclined upward toward the front, and has an attachment hole 18 for attaching the automatic faucet device 20 at a substantially center in the horizontal direction.

  Here, when viewed from the user standing in front of the washbasin 2 facing the hand-washing unit 1, the upper part is "upper", the lower part is "lower", the left side is "left side", the right side is "right side", The front side is “front” and the back side is “rear”.

  In addition, although the hand-washing machine 2 of this embodiment is made from resin, pottery etc. may be sufficient. The hand-washing unit 1 may have a structure in which the bowl portion 4 is placed on a cabinet (not shown) or may be a structure that is directly fixed to a wall surface.

  Next, an automatic water faucet device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 3 is an exploded perspective view showing the automatic faucet device according to the embodiment of the present invention. FIG. 4 is a perspective view showing a state before restricting the movement of the sensor in the automatic faucet device according to the embodiment of the present invention. FIG. 5 is a plan view showing a fixing plate of the automatic water faucet device according to the embodiment of the present invention. FIG. 6 is a perspective view showing a state where movement of the sensor is restricted in the automatic faucet device according to the embodiment of the present invention.

  As shown in FIG. 3, the automatic faucet device 20 includes a main body 30, a fixing means 40, and a sensor 50. The main body 30 is configured by integrally forming a water discharge joint 32 connected to the water flow pipe 70 and an external member 39 covering the water discharge joint 32. Inside the water discharge joint 32, a water passage is formed through which water supplied through the water pipe 70 passes. As shown in FIG. 4, the water discharge joint 32 has a circular cross section perpendicular to the water flow direction. The water discharge joint 32 includes a first groove portion 33 and a second groove portion 34. The first groove portion 33 and the second groove portion 34 are formed along the circumferential direction of the outer peripheral surface of the water discharge joint 32. The outer diameter of the water discharge joint 32 in the second groove portion 34 is larger than the outer diameter of the water discharge joint 32 in the first groove portion 33 and is formed on the downstream side of the first groove portion 33. One of the end portions of the water discharge joint 32 forms a connection portion 35 connected to the water conduit 70, and the other is a water discharge port 36 for discharging water supplied through the water conduit 70 (see FIG. 3). Is forming. The connecting portion 35 is formed so as to incline downward toward the front in a state where the main body 30 is fixed to the basin 2. In the present embodiment, the water conduit 70 is flexible.

  The fixing means 40 is for fixing the main body 30 to the hand-washing machine 2 from the front side of the hand-washing machine 2. In this embodiment, the fixing means 40 is hot-pressed into the wash-basin 2 as the fixing means 40. And a bolt 44 to be screwed into the nut 42. Two nuts 42 and two bolts 44 are provided. The bolts 44 are inserted into two bolt insertion portions 37 formed in the main body 30, and a portion 44 b other than the bolt head of the bolt 44 is penetrated through the through hole 31. The through hole 31 is formed in the main body 30 such that the bolt head 44a of the bolt 44 is regulated at a predetermined position, and a portion 44b other than the bolt head of the bolt 44 can be inserted. The bolt insertion part 37 is a space in front of the through hole 31, and the diameter of the hole of the insertion part 37 is larger than the diameter of the through hole 31 so that the bolt head 44 a of the bolt 44 can also be inserted. The through hole 31 and the bolt insertion portion 37 are formed so as to be symmetric with respect to the water discharge port 36 when the main body 30 is viewed from the water discharge direction. In this embodiment, since it has the bolt insertion part 37, the bolt head 44a can be concealed in the bolt insertion part 37, and it can be made difficult to see from a user.

  The sensor 50 has a semi-arc shape in a front view as viewed from the direction of water discharge, and detects a detection target such as a user's hand existing in the hand-washing space A. For example, the position, movement, and the like of the detected object are detected by transmitting the propagated wave and receiving the reflected wave reflected from the detected object such as a human body that has received the transmitted propagated wave. The sensor 50 is disposed inside the main body 30 and above the water discharge joint 32. In other words, the sensor 50 is disposed above the water discharge joint 32 in the vertical direction with respect to the water discharge direction.

  As shown in FIG. 3, the automatic water faucet device 20 further includes a water discharge cap 52, a packing 54, a fixing plate 56, an O-ring 59 (guide member), and a regulating means. The water discharge cap 52 is fitted into the water discharge port 36 of the water discharge joint 32, and has other functions such as a foam cap or a rectifying cap for discharging water flow containing fine bubbles. The packing 54 seals the basin 2 and the main body 30 and has a hole through which the water discharge joint 32, the sensor 50, and the bolt 44 can be passed. As shown in FIG. 4, the main body portion 30 is formed with a step portion 38 for fitting the packing 54. 4 and 5, the packing 54 is omitted.

  As shown in FIG. 5, the fixing plate 56 can be inserted into the first groove 33 from the radial outside of the water discharge joint 32 and cannot be inserted into the second groove 34 from the radial outside of the water discharge joint 32. It has the insertion part 57 and the fitting part 58 which can be externally fitted in the 2nd groove part 34. As shown in FIG. The insertion part 57 and the fitting part 58 are formed continuously. Further, as shown in FIG. 6, the O-ring 59 is fitted on the first groove portion 33.

  The restricting means restricts the sensor 50 from moving rearward with respect to the main body 30. As shown in FIG. 6, the O-ring is externally fitted to the first groove 33 and the fitting portion 58 of the fixing plate 56 is externally fitted to the second groove 34 as the restricting means. The sensor 50 is restricted from moving backward with respect to the main body 30. Specifically, the sensor 50 is disposed inside the main body 30, and the fixing plate 56 reaches the fitting portion 58 from the insertion portion 57 to the first groove portion 33 from the outside in the radial direction of the water discharge joint 32. insert. Then, the fixing plate 56 is moved in the axial direction of the water discharge joint 32 so that the fitting portion 58 is positioned in the second groove portion 34. Thereafter, the O-ring is fitted on the first groove 33. Thereby, the sensor 50 is attached to the main body 30. Even if the sensor 50 tries to move backward, the protrusion 51 of the sensor 50 abuts against the fixed plate 56, so that the movement of the sensor 50 toward the rear side of the fixed plate 56 can be restricted with respect to the main body 30. it can. Here, the sensor 50 has a protrusion 51 that protrudes from the lower surface thereof toward the water discharge joint 32. The length of the protrusion 51 is set to a length that allows the protrusion 51 to come into contact with the fixing plate 56 in a state where the fitting portion 58 of the fixing plate 56 is externally fitted to the second groove 34.

  Next, a method for fixing the automatic water faucet device 20 will be described. First, the packing 54 is fitted into the stepped portion 38 of the main body 30. And the sensor 50 is penetrated to the hole formed in the packing 54, and the sensor 50 is attached to the inside of the main body 30 as described above. Next, the connection portion 35 of the water discharge joint 32 and the rear end of the sensor 50 are inserted into the mounting hole 18 of the basin 2 from the front side of the basin 2 toward the rear side, The main body 30 is arranged so that the positions of the nuts 42 overlap. Then, the two bolts 44 are inserted into the corresponding bolt insertion portions 37, and the portions 44 b other than the bolt heads are passed through the through holes 31 and screwed into the nuts 42. Thereby, the main body 30 (automatic faucet device 20) is fixed to the washbasin 2. The water discharge cap 52 may be fitted into the water discharge port 36 before the main body 30 is fixed to the wash basin 2, or may be fitted into the water discharge port 36 after the main body 30 is fixed to the wash basin 2.

  Next, a method for removing the sensor 50 will be described. First, by removing the bolt 44 from the nut 42, the fixing of the main body 30 to the basin 2 is released, and the main body 30 is pulled out to the front side of the basin 2. Then, the O-ring 59 is shifted downstream from the first groove 33 of the water discharge joint 32. Thereafter, the fitting portion 58 of the fixing plate 56 arranged in the second groove portion 34 is moved to the first groove portion 33, and the fixing plate 56 is removed from the first groove portion 33. As a result, the sensor 50 is released from the restriction by the restriction means and is removed from the main body 30. That is, when the main body 30 is pulled out to the front side of the basin 2, the sensor 50 can be removed from the front side of the basin 2.

  In this embodiment, although the water discharge joint 32 showed the example in which the cross section perpendicular | vertical with respect to the water flow direction was formed circularly, it is not restricted to this. For example, as for the water discharge joint 32, the cross section perpendicular | vertical with respect to the water flow direction may be formed in the square shape. That is, the first groove portion and the second groove portion may be formed with a square cross section perpendicular to the water flow direction.

  In the present embodiment, when the fixing plate 56 is inserted into the first groove portion 33 from the radial outside of the water discharge joint 32, the fixing plate 56 is inserted from either the left side or the right side. Although an example is shown, the present invention is not limited to this. For example, the direction in which the fixing plate 56 is inserted into the first groove portion 33 from the radially outer side of the water discharge joint 32 may be any direction such as the left side, the right side, or the lower side.

  Moreover, in this embodiment, although the sensor 50 whole is located above the water discharge joint 32, it is not restricted to this. For example, the center portion of the sensor 50 may be located above the upper end portion of the water discharge joint 32, and the portion other than the center portion of the sensor 50 may be located below the upper end portion of the water discharge joint 32. That is, at least a part of the sensor 50 only needs to be positioned above the water discharge joint 32. In the present embodiment, the sensor 50 has a semi-arc shape in a front view as viewed from the water discharge direction, but is not limited thereto. For example, it may be square or circular.

  In the present embodiment, the O-ring 59 is provided as a guide member, but the present invention is not limited to this. For example, a member such as a substantially C-shaped ring or clip having a spring property as a guide member may be externally fitted to the first groove portion 33.

  Moreover, in this embodiment, although the nut 42 showed the example integrated into the washbasin 2 by hot-pressing in the washbasin 2, although it is not limited to this. For example, other fixing methods may be used such that the nut 42 is fixed by being inserted when the basin 2 is molded.

  As described above, in the automatic faucet device 20 according to the present embodiment, the water discharge joint 32 connected to the water conduit 70 and the appearance member 39 that covers the water discharge joint 32 are integrally formed. Compared to the water faucet device, the trouble of removing the water discharge joint 32 from the external member 39 can be reduced. Further, the sensor 50 can be removed from the front side by releasing the fixing by the fixing means from the front side of the hand-washer 2 and pulling out the main body 20. Therefore, the sensor 50 can be easily removed.

  Moreover, since the automatic water faucet device 20 according to the present embodiment includes a regulation unit that regulates the movement of the sensor 50 to the rear side with respect to the main body 20, the sensor is used when removing the main body 20 from the basin 2. 50 can be prevented from moving to the rear side of the washbasin 2.

  Further, the automatic faucet device 20 according to the present embodiment removes the sensor 50 from the main body 20 simply by displacing the O-ring 59 as a guide member from the first groove 33 and removing the fixing plate 56 from the water discharge joint 32. Can do. Therefore, the sensor 50 can be easily removed with a simple configuration.

  Further, in the automatic faucet device 20 according to the present embodiment, since the nut 42 is integrated with the basin 2, when the main body 20 is fixed to the basin 2, a separate nut or female screw is processed. Compared to the case of using a member such as a plate, it is not necessary to hold these members when the main body 20 is fixed or released. Therefore, the sensor 50 can be easily removed.

  Further, in the automatic faucet device 20 according to the present embodiment, the water pipe 70 is flexible, and the connection portion 35 of the water discharge joint 32 faces forward with the main body 20 fixed to the basin 2. Therefore, even if the water pipe is not intentionally slackened, the length of the water pipe 70 to be pulled out can be provided, and the sensor 50 is disposed when the sensor 20 is removed. This makes it easier to pull out the main body 20.

1 Hand-washing unit 2 Hand-washing machine (faucet mounting member)
4 Bowl portion 8 Drain port 10 Bottom wall portion 12 Front wall portion 14 Rear wall portion 16 Both side wall portions 18 Mounting holes (water faucet mounting holes)
20 Automatic faucet device 30 Main body 31 Through hole 32 Water discharge joint 33 First groove portion 34 Second groove portion 35 Connection portion 36 Water discharge port 37 Bolt insertion portion 38 Step portion 39 Appearance member 50 Sensor 51 Protrusion portion 52 Water discharge cap 54 Packing 56 Fixed plate (plate member)
57 Insertion part 58 Fitting part 59 O-ring (guide member)

Claims (3)

In an automatic faucet device fixed to a faucet attachment member having a faucet attachment hole,
A main body integrally formed with a water discharge joint connected to the water pipe and an external member covering the water discharge joint;
Fixing means for fixing the main body to the faucet mounting member from the front side of the faucet mounting member;
A sensor that is disposed inside the main body and detects a detection target;
With
The sensor Ri removable der the body from the front side of the faucet mounting member and withdrawn from the faucet mounting member to the front side of the faucet mounting member,
A restriction means for restricting movement of the sensor to the rear side with respect to the main body ;
The sensor has a protrusion part at least partially disposed on the upper side of the water discharge joint and protruding from the lower surface to the water discharge joint side,
The water discharge joint includes a first groove portion along a circumferential direction of an outer peripheral surface, a second groove portion that is larger than an outer diameter of the first groove portion and is formed downstream of the first groove portion, Have
A plate member in which an insertion part that can be inserted into the first groove part and cannot be inserted into the second groove part and a fitting part that can be externally fitted into the second groove part;
A guide member fitted around the first groove,
In the restricting means, the guide member is externally fitted in the first groove portion, and the fitting portion is externally fitted in the second groove portion, so that the sensor is rearward with respect to the main body. An automatic water faucet device that restricts movement to the side .   The fixing means includes a nut integrated with the faucet mounting member, and a bolt screwed into the nut.
  The automatic faucet device according to claim 1, wherein the main body has a through hole in which a bolt head of the bolt is regulated at a predetermined position and a portion other than the bolt head can pass therethrough.   The water pipe is flexible,
  The water discharge joint has a connection part to which the water pipe is connected,
  The connecting portion is lowered toward the front in a state where the main body is fixed to the faucet mounting member.
It is formed so that it may incline in any one of Claim 1 and Claim 2 characterized by the above-mentioned.
Automatic faucet device as described.

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