JP4993411B2 - Hot and cold water mixing device - Google Patents

Description

  The present invention relates to a hot and cold 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, and particularly relates to temperature display of hot water and water.

As a temperature display method for a hot and cold water mixing faucet device that changes the mixing ratio of supplied hot water and water and adjusts the water discharge flow rate with a single conventional operating lever, red on the hot water side on the upper surface of the operating lever, water side Some have blue display. (For example, refer to Patent Document 1.)
In addition, as a temperature display method that makes it easy to understand the water discharge temperature display even if the operation lever is rotated, a ring-shaped display ring is provided separately, and is fixed at the top of the faucet body and directly below the operation lever. is there. (For example, see Patent Document 2.)

However, in the temperature display method as in Patent Document 1, even if the user turns the operating lever upward in order to discharge water, the upper surface of the operating lever is viewed from the user even if the temperature of the discharged water is changed. Since it is located rearward, there is a problem that it becomes difficult to see the temperature display of hot water and water.
In the method of providing the display ring just above the faucet body and just below the operation lever as in Patent Document 2, it is easy for a user with a low eye level to understand. Further, there is an advantage that the temperature display can be easily confirmed even when the operation lever is rotated upward.
However, in recent years, when designing the bathroom space, there has been an increasing demand for a more compact water mixing faucet device, and the water discharge part including the water discharge port is formed to extend from the upper end of the water faucet body part in a generally horizontal direction. The hot and cold water mixing faucet device has been in the limelight. If a display ring like patent document 2 is provided in the above faucet mixing faucet device in the faucet body part below the water discharge part, the problem that it becomes difficult for a user to check a display ring by the water discharge part will arise. In addition, if the display ring is provided above the water discharge part in the faucet body part, the faucet body part is bulky upward, and the original purpose of the hot and cold water mixing faucet device cannot be made compact.

Japanese Patent Laid-Open No. 2002-356882 (page 3, FIG. 1) Japanese Patent Laid-Open No. 2001-262644 (page 7, FIG. 1)

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a hot and cold water mixing faucet device that can make the hot water and water faucet device compact and can easily recognize the temperature display. It is.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a hot and cold water mixing faucet device that adjusts the discharge flow rate by changing the mixing ratio of supplied hot water and water by a single operating lever. The hot water mixed by rotating around the second axis oriented in the horizontal direction by changing the mixing ratio of hot water and water by turning around the first axis oriented in the vertical direction, and A hot and cold water mixing valve unit having an operation rod capable of changing the water discharge flow rate and a valve unit housing recess for receiving the hot and cold water mixing valve unit are formed at the upper end, and hot water and water are respectively guided to the hot and cold water mixing valve unit. A faucet body portion having a built-in water supply channel, a spout 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; and the operation rod; In the hot and cold water mixing faucet device comprising: a fitting portion to be joined, and a gripping portion that extends from the fitting portion and is gripped by a user, and is rotated with the manipulation rod. An annular cover for displaying temperature, which is formed around the mounting portion and has a skirt portion covering the upper end opening of the valve unit housing recess, and is attached to the upper end opening of the valve unit housing recess The cover member is formed with an index portion having a temperature indication on the surface and covering the outer peripheral portion of the skirt portion, and a cover member fixing means for positioning and fixing the rotational position with respect to the faucet body portion. It is characterized by that.
As a result, the temperature display can be easily confirmed without being affected by the position of the water discharge unit or the operation lever, and the temperature display is also rotated with the rotation of the operation lever, thereby preventing the occurrence of positional deviation. it can.

According to the invention described in claim 2, the cover member fixing means is constituted by a protrusion provided on one side of the cover member or the faucet main body part and a concave part provided on the other side. It is characterized by.
Thereby, it can process easily with few components.

According to a third aspect of the present invention, the cover member fixing means is constituted by a fixing screw that passes through an outer peripheral position that does not interfere with the skirt portion in the index portion and is screwed to the faucet body. It is characterized by being.
Thereby, fixation can be made stronger.

According to a fourth aspect of the present invention, the cover member fixing means is interposed between the cover member and the faucet body, and a positioning member whose rotational position is positioned with respect to the faucet body; The positioning member or the cover member includes a protrusion provided on one side and a recess provided on the other side.
Thereby, since the processing of the faucet body for positioning the positioning member can be configured by cross processing, the faucet body portion can be configured more compactly.

  According to the present invention, in the hot and cold water mixing faucet device formed so that the water discharge portion including the water discharge port extends substantially horizontally from the upper end of the water faucet body portion, the hot water and water mixing faucet device can be made compact and the temperature can be reduced. It is an object of the present invention to provide a hot / cold water faucet device in which the display can be easily visually confirmed.

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 the first embodiment of the present invention. FIG. 2 is an exploded perspective sectional view of the hot and cold water mixing apparatus according to the first embodiment. FIG. 3 is a partial cross-sectional view along the v-plane in FIG.

  As shown in FIGS. 1 and 2, the hot and cold water mixing device 101 according to the first embodiment mainly includes a control lever 103 for operating a desired hot water temperature and flow rate by a user and movement of the control lever 103. And water mixing valve unit 104 for adjusting the water discharge flow rate, faucet body 102 for receiving hot water mixing valve unit 104, and an annular valve pressing member for fixing hot water mixing valve unit 104 105, a cover member 110 having an index portion 106 with a temperature display on the surface, a water discharge portion 107, and a water discharge portion 112 that guides hot water mixed in the hot water / mixing valve unit 104 to the water discharge portion 107. It is configured.

Further, on the back side of the faucet body 102, a drain faucet lever 109 for opening / closing a drain faucet (not shown) of a bowl (not shown) of a wash basin in which the hot and cold water mixing faucet device 101 is installed. The drain plug lever 109 is used to operate the drain plug opening / closing mechanism 109a.
Furthermore, a hot water supply pipe 116 and a water supply pipe 117 for supplying hot water are connected to the lower end of the faucet body 102. It is configured to be guided to the hot and cold water mixing valve unit 104 by two water supply passages 102b (only hot water is shown) formed in the faucet body 102.

Next, the configuration of each part will be described in detail with reference to FIGS.
The faucet body 102 has a substantially quadrangular prism shape and is installed so as to extend in a substantially vertical direction. Further, a valve unit housing recess 102 a for housing the hot and cold water mixing valve unit 104 is provided at the upper end of the faucet body 102.

  The water discharger 112 has a tubular shape with a rectangular cross section, and is formed integrally with the faucet body 102 so as to extend in a substantially horizontal direction from the upper end of the faucet body 102. The water discharge portion water passage 113 in the water discharge portion 112 is configured to communicate with the valve unit housing recess 102a of the faucet main body portion 102, and the hot water mixed in the hot water / water mixing valve unit 104 is provided on the side surface thereof. It flows out from the valve outlet 114 and flows between the hot and cold water mixing valve unit 104 and the valve unit housing recess 102a. Further, the upper surface of the water discharger 112 is configured to be flush with the upper end surface of the faucet body 102, that is, the upper surface of the water discharger 112 and the upper end surface of the faucet body 102 are configured as the same plane. Yes. Furthermore, a water outlet 107 is formed on the lower surface of the tip of the water discharger 112, and the hot water guided through the water discharger passage 113 inside the water discharger 112 is discharged. A rectifying cap 107 a is attached to the water outlet 107.

  On the other hand, the valve pressing member 105 includes an annular upper ring portion 105a having a small diameter and an annular lower ring portion 105b having a large diameter. A male screw 105c is formed on the lower outer periphery of the lower ring portion 105b. By screwing with a female screw 102c formed on the inner wall surface of the valve unit housing recess 102a, the valve pressing member 105 is made into the hot and cold mixing valve unit 104. The shoulder portion 104 a is pressed downward, and the hot and cold water mixing valve unit 104 is fixed to the faucet body portion 102. In a state where the hot / cold water mixing valve unit 104 is fixed, the upper part of the hot / cold water mixing valve unit 104 is received by the upper ring portion 105a of the valve pressing member 105, and the operation rod 104b of the hot / cold water mixing valve unit 104 is moved upward from the upper ring portion 105a. Protrusively. Further, an O-ring 105d is attached to the upper outer periphery of the lower ring portion 105b to ensure the water tightness of the valve unit housing recess 102a.

  The operating lever 103 includes a plate-shaped gripping portion 103a gripped by the user, a mounting portion 103b attached to the operating rod 104b of the hot and cold mixing valve unit 104, and a hemispherical skirt formed around the mounting portion 103b. Part 103c. Further, the skirt portion 103c has a function of covering the opening of the valve unit housing recess 102a and improving the appearance.

  The attachment portion 103b is formed with a quadrangular prism-shaped recess 103d that receives the operation rod 104b. A set of opposing surfaces of the inner wall of the recess 103d is composed of a first opposing surface 103e and a second opposing surface 103f. The first facing surface 103e is formed with a mounting portion hole 103g, which is a small hole for passing a tool for tightening the scissors screw 115, which is a fixing screw screwed into the female screw 104c provided on the operation rod 104b. . Further, a skirt portion hole 103h, which is a small hole aligned with the attachment portion hole 103g, is formed on the front side of the skirt portion 103c, and a tool for tightening the scissors screw 115 can be inserted from the outside.

  The cover member 110 has a substantially semi-cylindrical shape provided on a part of the outer periphery of the annular upper ring portion 110a having a large diameter, the lower ring portion 110b having an annular shape having a small diameter, and the lower ring portion 110b. It is comprised from the protrusion 110c. On the other hand, a positioning recess 102d having a substantially semi-cylindrical shape is formed on the inner wall surface of the valve unit storage recess 102a, and functions as a rotation position preventing means for the cover member. In addition, an O-ring 110d is attached to the outer periphery of the upper ring portion 110a of the cover member 110, and is fitted into an engagement groove 102e provided above the positioning recess 102d of the valve unit housing recess 102a. Further, the upper surface of the cover member 110 is provided with an index portion 106 indicating a temperature display (a mark such as “H” indicating high temperature or “C” indicating low temperature) and covers the skirt portion 103 c of the operation lever 103. It is configured.

  The hot and cold water mixing device 101 of the first embodiment is used for hot water by rotating the operation lever 103 in the left-right direction, that is, by rotating the operation lever 103 around the vertical axis that is the first axis. The mixing ratio of hot water and water supplied from the water supply pipe 116 and the water supply pipe 117 is changed. Further, the hot water / water mixing faucet device 101 mixes hot water and water by rotating the operation lever 103 in the vertical direction, that is, by rotating the operation lever 103 around the horizontal axis that is the second axis. The discharged water flow rate is adjusted to discharge water from the water discharge port 107 of the water discharge unit 112.

  Next, a structure for attaching the cover member 110 to the valve unit housing recess 102a will be described with reference to FIGS.

  The cover member 110 is a ring-shaped member having a flat upper surface. The cover member 110 is configured to be fitted into the upper end of the valve unit housing recess 102 a and is disposed around the skirt portion 103 c of the operation lever 103. The protrusion 110c provided on the outer periphery of the lower ring portion 110b of the cover member 110 is fitted so as to be received in the positioning recess 102d formed on the inner wall surface of the valve unit housing recess 102a, thereby rotating the cover member 110. The position is positioned. Thereby, since the rotation position of the cover member 110 is positioned with respect to the faucet main body portion 102, the index portion 106 attached to the cover member 110 can be easily positioned, and the temperature display of the index portion 106 is the water discharge. It is possible to easily check without being affected by the position of the portion 112 and the operation lever 103 and to prevent the temperature display of the index portion 106 from rotating as the operation lever 103 rotates.

  Further, an O-ring 110d is fitted on the outer periphery of the upper ring portion 110a of the cover member 110, and is attached so as to fit into an engagement groove 102e provided above the positioning recess 102d of the valve unit housing recess 102a. Thus, the cover member 110 is fitted so as not to be easily detached from the valve unit housing recess 102a.

Next, a modification of the first embodiment will be described with reference to FIG.
FIG. 4 is a partial cross-sectional view of a hot and cold water mixing device according to a modification of the first embodiment of the present invention.

  In the first embodiment, positioning is provided in the horizontal direction of the cover member 110, whereas in this modification, positioning is provided in the vertical direction of the cover member 210. A pin 210e is provided on the lower surface of the cover member 210, and a hole 202g is provided on a surface 202f that faces the lower surface of the cover member 210 when the cover member 210 is fitted into the valve unit housing recess 202a. The rotational position of the cover member 210 is positioned by being received in the hole 202g formed in the valve unit housing recess 202a.

Next, another embodiment of the present invention will be described with reference to FIG.
FIG. 5 is an exploded perspective view of the hot and cold water mixing device according to the second embodiment of the present invention.

The configuration of each part will be described in detail with reference to FIG.
The hot / cold water mixing valve unit 104, the valve pressing member 105, and the operation lever 103 have the same configuration as in the first embodiment.

  The cover member 310 has an annular shape, and includes a cylindrical notch 310a at two positions on the upper surface and a hole 310b provided coaxially therewith. A female thread 302h is provided on a surface 302f that faces the lower surface of the cover member 310 when the cover member 310 is fitted in the valve unit housing recess 302a. Further, a fixing screw 316 is formed at an outer peripheral position that passes through the hole 310b of the cover member 310 and does not interfere with the skirt portion 103c of the operation lever 103, and a temperature display is displayed on the notch portion 310a of the cover member 310 (high temperature is indicated). An index member 317 (marked with “H”, “C” indicating low temperature, etc.) is fitted from above.

Next, a structure for attaching the cover member 310 to the valve unit housing recess 302a will be described.
The cover member 310 is a ring-shaped member having a flat upper surface, is configured to be fitted into the upper end of the valve unit housing recess 302 a, and is disposed around the skirt portion 103 c of the operation lever 103. Further, the cover member 310 is screwed into the female screw 302h of the valve unit housing recess 302a and is fixed by a fixing screw 316 configured to penetrate the hole 310b of the cover member, whereby the rotational position of the cover member 310 is adjusted. Positioned. Further, the index member 317 is fitted into the notch 310a from the upper surface of the cover member 310. The index member 317 is made of a soft member and is attached so as to be press-fitted into the notch 310a. Thereby, since the rotation position of the cover member 310 is positioned with respect to the faucet body 302, the index member 317 fitted from the upper surface of the cover member 310 can be easily positioned, and the temperature of the index portion 317 The display can be easily confirmed without being affected by the positions of the water discharger 312 and the operation lever 103, and the temperature display of the index member 317 can be prevented from rotating as the operation lever 103 rotates.

Next, another embodiment of the present invention will be described with reference to FIG.
FIG. 6 is an exploded perspective view of a hot and cold water mixing device according to a third embodiment of the present invention.

The configuration of each part will be described in detail with reference to FIG.
The hot / cold water mixing valve unit 104, the valve pressing member 105, and the operation lever 103 have the same configuration as in the first embodiment.

  The positioning member 418 is an annular member, and is disposed on the lower ring portion 105 b so as to surround the upper ring portion 105 a of the valve pressing member 105. Further, a cantilever-like positioning tongue 418 a extending upward is formed on the outer periphery of the positioning member 418. Further, a protrusion 418b is formed on the outer peripheral surface of the positioning tongue 418a. The protrusion 418b is received in a positioning recess 402d formed on the inner wall surface of the valve unit housing recess 402a, whereby the rotational position of the positioning member 418 is positioned. A groove 418 c is provided above the positioning member 418 and functions as a positioning fixing means for the cover member 410.

  The cover member 410 includes an annular upper ring portion 410a having a large diameter, a lower ring portion 410b having a small diameter, and a protrusion 410c provided on a part of the outer periphery of the lower ring portion 410b. The outer diameter of the lower ring portion 410b is configured to be smaller than the positioning member 418, and the protrusion 410c is configured to fit into a groove 418c provided on the outer peripheral portion of the positioning member 418. In addition, an O-ring 410d is attached to the outer periphery of the upper ring portion 410a of the cover member 410, and is fitted in an engagement groove 402e provided above the positioning recess 402d of the valve unit housing recess 402a. Further, the upper surface of the cover member 410 is provided with an index portion 406 indicating a temperature display (a mark such as “H” indicating high temperature or “C” indicating low temperature) and covers the skirt portion 103 c of the operation lever 103. It is configured.

Next, a structure for attaching the cover member 410 to the valve unit housing recess 402a will be described.
The cover member 410 is a ring-shaped member having a flat upper surface, and is configured to be fitted into the upper end of the valve unit housing recess 402a, on the inner periphery of the positioning member 418, and on the skirt portion of the operation lever 103. 103c is arranged around. The protrusion 410c provided on the outer periphery of the cover member 418 is fitted into the groove 418c of the positioning member 418, whereby the rotational position of the cover member 418 is positioned. Thus, since the cover member 410 is positioned with respect to the positioning member 418 and the positioning member 418 is positioned with respect to the faucet body portion 402, the rotational position of the cover member 410 is eventually changed to the faucet body. Positioned relative to part 402. Thereby, since the rotation position of the cover member 410 is positioned with respect to the faucet main body 402, the index portion 406 attached to the cover member 410 can be easily positioned, and the temperature display of the index portion 406 indicates water discharge. It is possible to easily check without being affected by the position of the part 412 and the operation lever 103 and to prevent the temperature display of the index part 406 from rotating as the operation lever 103 rotates.

  Further, similarly to the first embodiment, an O-ring 410d is fitted on the outer periphery of the upper ring portion 410a of the cover member 410, and an engagement groove 402e provided above the positioning recess 402d of the valve unit housing recess 402a. The cover member 410 is fitted so as not to be easily detached from the valve unit housing recess 402a.

Next, a modification of the third embodiment will be described with reference to FIGS.
FIG. 7 is an exploded perspective view of a hot and cold water mixing device showing a modification of the third embodiment of the present invention.
FIG. 8 is a perspective view of the positioning member in the modification of the third embodiment of the present invention as seen from the back side.

  In the positioning member 418 of the fourth embodiment, a groove 418c is provided in the upper part, whereas in the fifth embodiment, a positioning tongue 518d in the form of a cantilever beam is formed on the inner periphery of the positioning member 518 downward. Is formed. A protrusion 518e is formed on the inner peripheral surface of the positioning tongue 518d. Other configurations are the same as those of the fourth embodiment, and the positioning method of the rotational position of the positioning member 518 is also the same as that of the fourth embodiment. Further, the protrusion 518e on the inner periphery of the positioning member 518 functions as a positioning fixing means for the cover member 510.

  The cover member 510 is provided with a protrusion 410c on a part of the outer periphery of the lower ring portion 410b in the fourth embodiment, whereas in the fifth embodiment, a notch 510c is formed at one position on the lower outer periphery. Is formed. Other configurations are the same as those in the fourth embodiment.

  The cover member 510 is fitted into the valve unit housing recess 402a so that the notch 510c formed at one location on the lower outer periphery of the cover member 510 receives the protrusion 518e provided on the inner periphery of the positioning member 518. Thereby, the rotational position of the cover member 510 is positioned. Further, when the cover member 510 is fitted into the valve unit housing recess 402a, the notch 510c of the cover member 510 is fitted so as not to be received by the protrusion 518e provided on the inner periphery of the positioning member 518. In this case, the positioning tongue 518d of the positioning member 518 is fitted by being bent. After that, when the cover member 510 is rotated and the notch 510c of the cover member 510 is received by the protrusion 518e provided on the inner periphery of the positioning member 518, the deflection is returned and the side surface of the protrusion 518e of the positioning member 518 is returned. This prevents the cover member 510 from rotating any further. Thereby, since the rotation position of the cover member 510 is positioned with respect to the faucet main body 402, the index portion 506 attached to the cover member 510 can be easily positioned, and the temperature display of the index portion 506 indicates water discharge. It is possible to easily check without being affected by the position of the unit 412 and the operation lever 103 and to prevent the temperature display from rotating as the operation lever 103 rotates.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway perspective view showing a whole hot and cold water mixing device according to a first embodiment of the present invention. 1 is an exploded perspective sectional view of a hot and cold water mixing faucet device according to a first embodiment of the present invention. It is a fragmentary sectional view which follows the vv line | wire in FIG. It is a fragmentary sectional view of the hot and cold water mixing faucet device by the modification of 1st Embodiment of this invention. It is a disassembled perspective view of the hot and cold water mixing faucet device by a 2nd embodiment of the present invention. It is a disassembled perspective view of the hot and cold water mixing faucet device by a 3rd embodiment of the present invention. It is the disassembled perspective view of the hot and cold water mixing faucet device which showed the modification of 3rd Embodiment of this invention. It is the perspective view which looked at the positioning member in the modification of 3rd Embodiment of this invention from the back surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Hot and cold water mixing faucet device 102, 202, 302, 402 ... Water faucet main body part 102a, 202a, 302a, 402a ... Valve unit accommodation recessed part 102b ... Water supply path 102d ... Positioning recessed part 103 ... Operation lever 103c ... Skirt part 104 ... Hot water Mixing valve unit 104b ... Operating rod 105 ... Valve pressing member 106, 206, 406, 506 ... Index portion 107 ... Discharge port portion 107a ... Cap 110, 210, 310, 410, 510 ... Cover member 110c ... Protrusion 112, 312, 412 DESCRIPTION OF SYMBOLS 512 ... Water discharge part 113 ... Water discharge part water passage 116 ... Hot water supply pipe 117 ... Water supply pipe 316 ... Fixing screw 317 ... Index member 402d ... Positioning recessed part 410c ... Projection 418, 518 ... Positioning member 418b ... Projection 510c ... Cutting Notch 518b ... protrusion 518e ... protrusion

Claims (4)

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 that extends in a generally horizontal direction from the upper end of the faucet body part, and has a water discharge port for discharging mixed hot water and water; and
In a hot and cold water mixing faucet apparatus comprising: an attachment portion coupled to the operation rod; and an operation lever that extends from the attachment portion and is grasped by a user and is rotated together with the operation rod.
The operation lever has a skirt portion that is formed around the mounting portion and covers an opening at an upper end of the valve unit housing recess,
Furthermore, it has an annular cover member for temperature display attached to the opening at the upper end of the valve unit housing recess,
The cover member is provided with an index portion whose surface is subjected to temperature display and covers an outer peripheral portion of the skirt portion;
A hot water / water mixing faucet device, comprising: a cover member fixing means for positioning and fixing a temperature display with respect to the faucet body.   2. The hot and cold water mixture according to claim 1, wherein the cover member fixing means includes a protrusion provided on one of the cover member or the faucet body and a recess provided on the other. Stopper device.   2. The hot and cold water according to claim 1, wherein the cover member fixing means is constituted by a fixing screw that passes through an outer peripheral position that does not interfere with the skirt portion in the index portion and is screwed into the faucet body. Mixing faucet device.   The cover member fixing means is interposed between the cover member and the faucet body, and is provided on a positioning member whose rotational position is positioned with respect to the faucet body and one of the positioning member or the cover member. The hot and cold water mixing faucet device according to claim 1, wherein the hot water / water mixing faucet device is configured by a projection provided and a recess provided on the other side.

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