JP5752726B2 - Hot and cold mixer tap - Google Patents

Description

  The present invention relates to a hot and cold water mixing tap.

  There is known a faucet capable of adjusting the discharge amount and the mixing ratio of hot and cold water by a handle operation. With a single lever type hot / cold mixing tap, the lever handle can be switched between hot water and water by turning the lever left and right (turning operation) and the mixing ratio can be adjusted. Is possible.

  Japanese Patent Application Laid-Open No. 2003-129535 discloses a single lever hot and cold water mixing tap that discharges water at a position where a lever handle faces a user. In the hot and cold water mixing plug described in Japanese Patent Laid-Open No. 2003-129535, a click feeling does not occur, so the hot water saving effect is limited.

  Japanese Patent Application Laid-Open No. 2012-132161 discloses a single lever faucet that can generate a click feeling at an adjustment point of a predetermined mixing degree and water discharge amount. In this faucet, a convex spherical surface is formed on the faucet body, and a concave spherical surface is formed on the operation lever. A first rib and a second rib are provided on one of these spherical surfaces, and a protrusion is provided on the other. The first rib extends in the horizontal direction, and the second rib extends in the vertical direction.

JP 2003-129535 A JP 2012-132161 A

  The click feeling can give various information to the user. The click feeling can enhance the convenience of the hot and cold water mixing tap. A more accurate click mechanism is preferred.

  An object of the present invention is to provide a hot and cold water mixing tap having a click mechanism with excellent accuracy.

  A preferred hot and cold water mixing plug includes a valve unit, a valve body having a lever and an outer peripheral surface portion, a moving member that can rotate in conjunction with the left-right rotation of the lever, and can move up and down in conjunction with the rotation. It is equipped with. The moving member has an inner peripheral surface portion. The outer peripheral surface portion has an outer peripheral cam portion. The inner peripheral surface portion has an inner peripheral cam portion. A cam mechanism is formed by the engagement between the outer peripheral cam portion and the inner peripheral cam portion. The cam mechanism is configured to convert relative rotation between the inner peripheral surface portion and the outer peripheral surface portion into vertical movement of the moving member. The lever has a first engagement part for front and rear clicks. The said moving member has the 2nd engaging part for back-and-forth clicks. A back-and-forth click feeling is generated by the click engagement between the front-rear click first engaging part and the front-rear click second engaging part. Due to the vertical position of the moving member, switching between the engaged state in which the click engagement is achieved and the released state in which the click engagement is released is possible.

  Preferably, the outer peripheral cam portion is one of a cam convex portion or a cam guide portion. Preferably, the inner peripheral cam portion is the other of the cam convex portion or the cam guide portion. Preferably, the cam mechanism is formed by engagement of the cam convex portion and the cam guide portion.

  Preferably, the valve body has a first restricting surface extending in the vertical direction. Preferably, the moving member has a second restricting surface extending in the vertical direction. Preferably, the first restriction surface and the second restriction surface restrict the movement of the moving member in a direction other than the vertical direction.

  Preferably, the hot and cold water mixing tap further includes a front-rear click elastic member. Preferably, the front-rear click first engaging portion has a first contact surface. Preferably, the second front and rear click engaging portion has a second contact surface. Preferably, in the engaged state, the back-and-forth click elastic member presses the second contact surface against the first contact surface.

  Preferably, the valve body further includes a rotating body that rotates in conjunction with the left-right rotation of the lever. Preferably, one of the rotating body or the moving member has a slide protrusion extending in the vertical direction. Preferably, the other of the rotating body or the moving member has a slide receiving portion extending in the vertical direction. Preferably, the slide receiving portion is guided by the slide protrusion when the moving member moves in the vertical direction.

  Preferably, the valve main body has a first engaging portion for right and left click. Preferably, the rotating body has a left and right click second engaging portion. Preferably, the engagement between the left and right click first engaging portion and the left and right click second engaging portion occurs in at least a part of the region in the left and right rotation of the lever. Preferably, a left-right click feeling is generated by this engagement.

  Another preferred embodiment of the hot and cold water mixing tap includes a valve body having a valve unit, a rotating body, and a lever. The rotating body is configured to rotate in conjunction with the left-right rotation of the lever. A left and right click first engaging portion is provided on an inner peripheral surface portion of the valve body. The rotating body has a left and right click second engaging portion. Engagement of the first engaging part for left and right clicks and the second engaging part for left and right clicks occurs in at least a part of the region in the left-right rotation of the lever, and this engagement causes a left-right click feeling. .

  A preferred faucet device according to the present invention includes any one of the hot and cold water mixing taps described above.

  A hot and cold water mixing tap having a click mechanism with excellent durability can be provided.

FIG. 1 is a perspective view of a hot and cold water mixing tap according to an embodiment of the present invention. FIG. 2 is a front view showing a part of the hot and cold water mixing tap of FIG. FIG. 3 is a side view showing a part of the hot and cold water mixing tap of FIG. FIG. 4 is a perspective view of the valve assembly. FIG. 5 is a perspective view of the valve assembly as seen from another viewpoint. FIG. 6 is an exploded perspective view of the valve assembly. FIG. 7 is a longitudinal sectional view of the valve assembly. In FIG. 7, the valve assembly is in an engaged state. FIG. 8 is a perspective view of the lever. 9A is a front view of the lever, FIG. 9B is a side view of the lever, and FIG. 9C is a rear view of the lever. FIGS. 10A, 10B, and 10C are side views of the upper case. FIG.10 (d) is sectional drawing along the AA line of FIG.10 (c). FIG. 11A is a plan view of the upper case, and FIG. 11B is a bottom view of the upper case. FIG. 12 is a perspective view showing the lever and the rotating body in the assembled state. FIG. 13 is a perspective view of the moving member. 14A is a plan view of the moving member main body, FIG. 14B is a bottom view of the moving member main body, and FIG. 14C is a cross section taken along the line cc of FIG. 14A. FIG. FIG. 15 is a perspective view showing the upper case, the rotating body, and the lever in the assembled state. FIG. 16 is a longitudinal sectional view of the valve assembly. In FIG. 16, the valve assembly is in a released state. FIG. 17 is a side view of the valve assembly. In FIG. 17, the valve assembly is in an engaged state. FIG. 18 is a side view of the valve assembly. In FIG. 18, the valve assembly is in a released state. FIG. 19 is a plan view for explaining the left-right rotation of the lever. FIG. 20 is a perspective view of the valve assembly according to the second embodiment. FIG. 21A is a perspective view of a moving member according to the second embodiment, and FIG. 21B is a perspective view of an upper case according to the second embodiment.

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

[Vertical direction]
In the present application, the term “vertical direction” is used. In the embodiment described later, the vertical direction coincides with the vertical direction. This vertical direction may not coincide with the vertical direction. This vertical direction is the axial direction of the upper case described later.

  FIG. 1 is a perspective view of a hot and cold water mixing tap 10 according to an embodiment of the present invention. FIG. 2 is a front view of the upper part of the hot and cold water mixing tap 10. FIG. 3 is a side view of the upper part of the hot and cold water mixing tap 10. The hot and cold water mixing tap 10 includes a main body 12, a handle 14, a discharge part 16, a hot water introduction pipe 18, a water introduction pipe 20 and a discharge pipe 22. The ejection unit 16 has a head 24. The head 24 can switch between shower discharge and normal discharge. The hot and cold water mixing tap 10 is attached to, for example, a sink, a wash basin or the like and used as a faucet appliance. The faucet appliance including the hot and cold water mixing tap 10 includes a fixing portion 23 for fixing the hot water and water mixing tap 10 to a sink, a connection portion 25 connected to the hot water supply pipe, and a connection portion 27 connected to the water supply pipe. And have.

  The discharge amount is adjusted by turning the handle 14 up and down (back and forth) (see arrow M in FIG. 3). In the present embodiment, the discharge amount increases as the handle 14 is moved upward. Conversely, the discharge amount may increase as the handle 14 is moved downward. Moreover, the mixing ratio of hot water and water changes by turning the handle 14 left and right (turning). The water discharge temperature can be adjusted by turning the handle 14 left and right.

  The hot and cold water mixing tap 10 has a valve assembly 40 (described later) therein. The valve assembly 40 is disposed inside the outer cover 13. The handle 14 is fixed to a lever 46 (described later) by a screw (not shown). The valve assembly 40 can be handled alone. In the hot-water mixing tap 10, the valve assembly 40 is replaceable.

  4 and 5 are perspective views of the valve assembly 40. FIG. The viewpoint differs between FIG. 4 and FIG. FIG. 6 is an exploded perspective view of the valve assembly 40. FIG. 7 is a cross-sectional view of the valve assembly 40.

  As shown in FIGS. 4 and 5, the valve assembly 40 includes a valve main body v <b> 1 and a moving member c <b> 1.

  The moving member c1 includes a main body ch1, a contact member zt1, and an elastic member zd1. The contact member zt1 and the elastic member zd1 are involved in the front-rear click engagement. The elastic member zd1 is an example of a back-and-forth click elastic member.

  As shown in FIGS. 6 and / or 7, the valve main body v1 includes an upper case 42, a rotating body 44, a lever 46, a lever shaft 48, a movable valve body 52, a fixed valve body 54, a packing 60, and a lower case 62. . The valve body v1 has a valve unit y1. The valve unit y1 includes a movable valve body 52 and a fixed valve body 54.

  Although not shown, the lower case 62 has a hot water inlet, a water inlet, and a discharge outlet. In the lower part of the lower case 62, openings corresponding to the hot water inlet, the water inlet and the outlet are provided. A hot water introduction pipe 18, a water introduction pipe 20, and a discharge pipe 22 are connected to each of these openings. Further, the lower case 62 has an engaging convex portion 64.

  The fixed valve body 54 is fixed to the lower case 62. The fixed valve body 54 is fitted in the upper part of the lower case 62.

  Although not shown, the fixed valve body 54 has a hot water valve hole, a water valve hole, and a mixed water valve hole. The hot water valve hole is connected to the hot water inlet of the lower case 62. The water valve hole is connected to the water inlet of the lower case 62. The mixed water valve hole is connected to the discharge port of the lower case 62.

  As shown in FIG. 7, the movable valve body 52 includes an upper member 86, an O-ring 87, and a lower member 88. The upper member 86 is fixed to the lower member 88. In the present embodiment, the upper member 86 and the lower member 88 are separate members. In this case, an optimal material and manufacturing method can be selected for each of the upper member 86 and the lower member 88. The movable valve body 52 may be integrally formed as a whole.

  The movable valve body 52 has a flow path forming recess 90. The flow path forming recess 90 is formed by closing the upper surface opening of the through hole 92 provided in the lower member 88 by the upper member 86. O-ring 87 prevents water leakage from the boundary between upper member 86 and lower member 88.

  A lever engaging recess 98 that engages with the lower end 96 of the lever 46 is provided on the upper surface of the upper member 86 (see FIG. 6). The lower end 96 of the lever 46 is inserted into the lever engaging recess 98. In conjunction with the movement of the lever 46, the movable valve body 52 slides on the fixed valve body 54.

  The engagement between the lever 46 and the lever engaging recess 98 may be direct or indirect. For example, another member may be interposed between the lever 46 and the lever engaging recess 98.

  The lever 46 has a shaft hole 100. A lever shaft 48 is inserted into the shaft hole 100 (see FIG. 7). The lever 46 rotates back and forth around the lever shaft 48. More specifically, the lever 46 rotates back and forth around the axis of the lever shaft 48. In FIG. 6, the illustration of the lever shaft 48 is omitted.

  FIG. 8 is a perspective view of the lever 46. FIG. 9A is a front view of the lever 46. FIG. 9B is a side view of the lever 46. FIG. 9C is a rear view of the lever 46.

  The lever 46 has a first engagement part zk1 for front and rear clicks. The front-rear click first engaging portion zk1 has a plurality of convex portions t10 arranged in parallel. The front / rear click first engaging portion zk1 has a plurality of parallel recessed portions r10. The convex portions t10 and the concave portions r10 are alternately arranged. The concavo-convex surface formed by the convex portion t10 and the concave portion r10 is the first contact surface. The front-rear click first engaging portion zk1 has a first contact surface.

  FIGS. 10A, 10B, and 10C are side views of the upper case 42. FIG. FIG. 10 (a), FIG. 10 (b), and FIG. 10 (c) have different viewpoints. FIG.10 (d) is sectional drawing along the AA line of FIG.10 (c). FIG. 11A is a plan view of the upper case 42. FIG. 11B is a bottom view of the upper case 42. FIG. 6 described above shows a perspective view of the upper case 42.

  The upper case 42 includes a small diameter cylindrical portion 120, a large diameter cylindrical portion 122, and a connecting portion 124. The connecting portion 124 extends in the radial direction of the upper case 42. The small diameter cylindrical portion 120 has an upper opening 126. The large diameter cylindrical portion 122 has a lower opening 128.

  Unless otherwise specified, the radial direction referred to in the present application means the radial direction of the upper case 42.

  The large diameter cylindrical portion 122 has an engagement hole 130. The engagement hole 130 is engaged with the engagement convex portion 64 of the lower case 62 (see FIGS. 4 and 5). By this engagement, the upper case 42 is fixed to the lower case 62.

  As shown in FIG. 11B, the upper case 42 has a left-right click first engaging portion sk1. The first engaging portion sk1 is provided on the inner peripheral surface portion of the upper case 42. In the present embodiment, the first engagement portion sk1 is a protrusion. The first engagement portion sk1 is provided in the large diameter cylindrical portion 122. In the present embodiment, the first engagement portion sk1 is a convex portion. The first engagement portion sk1 is involved in the left and right click engagement.

  The left and right click first engaging portion sk1 is provided above the valve unit y1. The left / right click first engaging portion sk1 is provided above the movable valve body 52. The first engaging part sk1 for left and right clicks does not hinder the design freedom of the valve unit y1.

  FIG. 12 is a perspective view showing the lever 46 and the rotating body 44 in the assembled state. A perspective view of the rotating body 44 alone is shown in FIG.

  The rotating body 44 includes a base portion 102 and an upper portion 104. The upper part 104 has a lever insertion hole 106 and a pillar part 110. A plurality of column portions 110 are provided. The column part 110 is cylindrical. The column part 110 extends upward. The upper end of the column part 110 is a free end. As shown in FIG. 6, the column part 110 includes a small diameter column part 112 and a large diameter column part 114. Three column portions 110 are provided. Two small-diameter column portions 112 are provided. One large-diameter column portion 114 is provided. The column part 110 is an example of a slide protrusion.

  The upper part 104 of the rotating body 44 has an outer peripheral surface part 132. The outer diameter of the outer peripheral surface portion 132 is substantially equal to the diameter of the inner peripheral surface 121 of the small diameter cylindrical portion 120.

  The lever 46 is inserted into the lever insertion hole 106. By this insertion, the shaft hole 100 of the lever 46 and the shaft hole 108 of the rotating body 44 are arranged coaxially. The lever shaft 48 is inserted into the shaft hole 100 and the shaft hole 108. By inserting the lever shaft 48, the lever 46 is attached to the rotating body 44 in a state in which the lever 46 can be rotated back and forth. The dimension of the lever insertion hole 106 is set so as to allow the lever 46 to rotate back and forth. When the lever 46 is rotated left and right, the rotating body 44 rotates (spins). That is, the rotating body 44 rotates in conjunction with the left / right rotation of the lever 46. In conjunction with the rotation of the rotating body 44, the movable valve body 52 rotates.

  The rotating body 44 is held in a rotatable state by the upper case 42 (small diameter cylindrical portion 120). In the rotation of the rotating body 44, the outer peripheral surface portion 132 of the upper portion 104 and the inner peripheral surface 121 of the small diameter cylindrical portion 120 slide. The large-diameter cylindrical portion 122 accommodates the base portion 102 of the rotating body 44, the movable valve body 52, and the fixed valve body 54.

  The rotating body 44 includes a contact member holding part kt2 and an elastic member holding part kd2. Further, the rotating body 44 includes a contact member st2 and an elastic member sd2. The contact member st2 and the elastic member sd2 are involved in the left-right click engagement.

  The abutting member st2 has a second engaging part sk2 for left and right click. The contact member st2 (second engagement part sk2) is provided above the valve unit y1. The contact member st <b> 2 (second engagement portion sk <b> 2) is provided above the movable valve body 52. The contact member st2 (second engaging portion sk2) does not hinder the design freedom of the valve unit y1.

  In the present embodiment, the elastic member sd2 is a leaf spring. The elastic member sd2 may not be a leaf spring. The elastic member sd2 can bias the contact member st2 outward.

  As shown in FIG. 6, the contact member holding part kt2 of the rotating body 44 forms a slide groove in which the contact member st2 can slide. The contact member st2 can slide in the contact member holding part kt2.

  As shown in FIG. 12, the elastic member sd2 of the rotating body 44 is held by the elastic member holding part kd2. The elastic member holding part kd2 has a gap that can support both ends of the elastic member sd2. The elastic member sd2 is inserted into the gap between the elastic member holding portions kd2. The elastic member sd2 can bias the contact member st2 toward the first engagement portion sk1. By this urging, the engagement between the contact member st2 and the first engagement portion sk1 (convex portion) is achieved.

  FIG. 13 is a perspective view of the moving member c1. FIG. 14A is a plan view of the main body ch1 of the moving member c1. FIG. 14B is a bottom view of the main body ch1. FIG. 14C is a cross-sectional view of the main body ch1 along the line cc in FIG. FIG. 15 is a perspective view showing the upper case 42 and the lever 46 in the assembled state.

  The moving member c1 (main body ch1) has a lever insertion hole 134, an outer peripheral surface portion 136, an inner peripheral surface portion 138, a receiving hole 140, and a receiving groove 142. Furthermore, the main body ch1 has an elastic member holding part hd1 and a contact member holding part ht1. The elastic member holding part hd1 is cylindrical. One end of the elastic member holding part hd1 is a free end. The elastic member holding part hd1 extends in the horizontal direction. The receiving hole 140 is an example of a slide receiving portion. The receiving groove 142 is an example of a slide receiving portion.

  The small diameter cylindrical portion 120 of the upper case 42 has an outer peripheral surface portion 144. The outer peripheral surface portion 144 is an example of an outer peripheral surface portion of the valve body v1. The inner peripheral surface portion 138 of the moving member c1 covers a part of the outer peripheral surface portion 144.

  As shown in FIGS. 6, 10 (a), 10 (b), 10 (c), 10 (d) and 15, the upper case 42 has a guide groove g1. The guide groove g <b> 1 is provided on the outer peripheral surface portion 144. In the present embodiment, three guide grooves g1 are provided. In the circumferential direction of the outer peripheral surface portion 144, the three guide grooves g1 are equally arranged. The three guide grooves g1 are arranged every 120 degrees. The guide groove g1 is an example of a cam guide portion.

  The guide groove g1 has a horizontal part gh and an inclined part gk. The horizontal part gh and the inclined part gk are connected. In the horizontal part gh and the inclined part gk, the cross-sectional shape of the guide groove g1 is constant. Further, the guide groove g1 has a terminal end gf and an open part gp. The opening part gp is located on the upper end surface of the small diameter cylindrical part 120. One end of the guide groove g1 is a terminal end gf. The other end of the guide groove g1 is an open part gp. The end portion gf is provided in the horizontal portion gh. The guide groove g1 is continuous from the terminal end gf to the open part gp through the horizontal part gh and the inclined part gk. The end portion gf can regulate the rotation of the moving member c1.

  As shown in FIG. 12, the lever 46 is inserted into the lever insertion hole 134. The lever insertion hole 134 does not hinder the forward and backward rotation of the lever 46. As described above, the moving member c1 includes the contact member zt1 and the elastic member zd1 (see FIG. 13).

  As shown in FIG. 13, the contact member zt <b> 1 has a second engagement portion zk <b> 2 for front and rear clicks. The engaging part zk2 is provided on the lower surface of the contact member zt1. The engaging part zk2 has a plurality of convex parts arranged in parallel. Unevenness is formed by these convex portions. The uneven surface is a second contact surface.

  As shown in FIG. 13, the contact member zt1 has a groove m1. The groove m1 is provided on the upper surface of the contact member zt1.

  In the present embodiment, the front-rear click elastic member (elastic member zd1) is a torsion spring. As shown in FIG. 13, the elastic member holding part hd1 is inserted through the main body part of the elastic member zd1. One end e1 of the elastic member zd1 is supported by the main body ch1. The other end e2 of the elastic member zd1 is in contact with the contact member zt1. The other end e2 is disposed in the groove m1. The groove m1 prevents the misalignment of the other end e2. The other end e2 presses the contact member zt1 downward.

  Thus, the elastic member zd1 urges the contact member zt1 downward. The elastic member zd1 biases the contact member zt1 toward the engaging portion zk1. By this urging, the uneven surface (second contact surface) of the contact member zt1 is pressed against the uneven surface (first contact surface) of the engaging portion zk1. By this pressing, front-rear click engagement is achieved.

  As shown in FIGS. 14A and 14B, the contact member holding portion ht1 has a first side surface ht10 and a second side surface ht12. The contact member zt1 is disposed in the gap between the first side face ht10 and the second side face ht12. The contact member zt1 can slide within the contact member holding portion ht1. The direction of this sliding movement is the vertical direction.

  As shown in FIG. 14A, the contact member holding portion ht1 has a first recess ht20 and a second recess ht22. The first recess ht20 is provided on the first side face ht10. The first recess ht20 is a groove extending in the vertical direction. The first recess ht20 is a groove that opens upward and has a lower end. The second recess ht22 is provided on the second side face ht12. The second recess ht22 is a groove extending in the vertical direction. The second recess ht22 is a groove that opens upward and has a lower end.

  As shown in FIGS. 14A and 14B, the moving member c1 (main body ch1) has a cam projection p1. In the present embodiment, a plurality of cam projections p1 are provided. In the present embodiment, three cam projections p1 are provided. As the cam projection p1, a first cam projection p11, a second cam projection p12, and a third cam projection p13 are provided.

  The plurality of (three) cam protrusions p <b> 1 are equally arranged in the circumferential direction of the inner peripheral surface portion 138. The three cam projections p1 are arranged every 120 degrees.

  Each of the three cam projections p1 is engaged with each of the three guide grooves g1. The outer shape of the cam projection p1 corresponds to the cross-sectional shape of the guide groove g1. The cam projection p1 can move inside the guide groove g1 along the longitudinal direction of the guide groove g1.

  The opening gp is useful when the cam projection p1 is inserted into the guide groove g1. That is, the cam convex portion p1 can be inserted into the guide groove g1 from the opening portion gp. The opening portion gp allows the cam convex portion p1 to be inserted into the guide groove g1 without deforming the moving member c1. Therefore, assembly for cam engagement is facilitated.

  As shown in FIG. 13, the contact member zt1 includes a first side protrusion zt10 and a second side protrusion zt12. The first side protrusion zt10 is provided on one side of the contact member zt1. The second side protrusion zt12 is provided on the other side of the contact member zt1. The first side protrusion zt10 is engaged with the first recess ht20. The first recess ht20 is a guide groove of the first side protrusion zt10. The lower end of the first recess ht20 regulates the downward movement of the first side projection zt10. The second side protrusion zt12 is engaged with the second recess ht22. The second recess ht22 is a guide groove of the second side protrusion zt12. The lower end of the second recess ht22 restricts the downward movement of the second side projection zt12.

  As described above, the first recess ht20 and the second recess ht22 guide the moving direction of the contact member zt1 in the vertical direction. Moreover, the lower limit position of the contact member zt1 is set by the lower ends of the first recess ht20 and the second recess ht22.

[Cam mechanism]
As described above, the outer peripheral surface portion 144 of the upper case 42 has the guide groove g1 (see FIG. 15 and the like). The guide groove g1 is an example of an outer peripheral cam portion. The guide groove g1 is an example of a cam guide portion. The outer cam portion may be a cam convex portion, for example.

  As described above, the inner peripheral surface portion 138 of the moving member c1 has the cam projection p1 (see FIG. 14B and the like). The cam convex portion p1 is an example of an inner peripheral cam portion. The inner circumferential cam portion may be a guide groove, for example.

  In the present embodiment, a cam mechanism is formed by the engagement between the guide groove g1 and the cam projection p1.

  This cam mechanism is configured to convert the relative rotation of the inner peripheral surface portion 138 and the outer peripheral surface portion 144 into vertical movement of the moving member c1.

  More specifically, the principle of this cam mechanism is as follows. As the lever 46 rotates left and right, the moving member c1 rotates. This rotation is the rotation of the moving member c1. When the moving member c1 rotates, the cam projection p1 moves in the guide groove g1. The cam projection p1 moves along the longitudinal direction of the guide groove g1. Regardless of the left and right position of the lever 46, the engagement between the guide groove g1 and the cam projection p1 is maintained.

  The cam projection p1 moves while being guided by the guide groove g1. The vertical position of the cam projection p1 is regulated by the guide groove g1. When the cam projection p1 moves on the horizontal portion gh, the vertical position of the moving member c1 does not change. On the other hand, when the cam convex portion p1 is moving along the inclined portion gk, the vertical direction of the moving member c1 changes. The vertical position of the cam projection p1 is changed by the inclined portion gk. Therefore, the vertical position of the moving member c1 changes. With this principle, the cam mechanism operates.

  The relationship between the circumferential position (rotation angle) of the moving member c1 and the vertical position of the moving member c1 is defined by the arrangement of the horizontal portion gh and the inclined portion gk. The change rate of the vertical position of the moving member c1 with respect to the rotation angle of the moving member c1 is defined by the inclination of the inclined portion gk.

  As described above, the plurality (three) of guide grooves g1 are equally arranged in the circumferential direction. All the guide grooves g1 are the same. As described above, the plurality of (three) cam projections p1 are equally arranged in the circumferential direction. All the cam projections p1 are the same. Therefore, the vertical position of the plurality (three) of the cam projections p1 is constant regardless of the rotation angle (circumferential position) of the moving member c1. For this reason, the posture of the moving member c1 is constant (horizontal) regardless of the left and right positions of the lever 46. The posture of the moving member c1 is stable. The moving member c1 can move up and down while maintaining its posture.

[Switching between engaged state and released state]
Due to the vertical position of the moving member c1, the engagement state EP and the release state NP can be switched. FIG. 7 described above is a cross-sectional view of the valve assembly 40 in the engaged state EP. FIG. 16 is a cross-sectional view of the valve assembly 40 in the released state NP. FIG. 17 is a side view of the valve assembly 40 in the engaged state EP. FIG. 18 is a side view of the valve assembly 40 in the released state NP.

  The engagement state EP is a state in which front-rear click engagement is achieved. In the engagement state EP, the first engagement portion zk1 and the second engagement portion zk2 are engaged. In the engagement state EP, the unevenness of the first engagement part zk1 and the unevenness of the second engagement part zk2 are engaged with each other. When the lever 46 is rotated back and forth in the engaged state EP, a click feeling is generated. This click feeling is a back-and-forth click feeling.

  The release state NP is a state where the front-rear click engagement is released. In the released state NP, the first engagement portion zk1 and the second engagement portion zk2 are not engaged. In the released state NP, even if the lever 46 is rotated back and forth, there is no click feeling. In the released state NP, there is no back-and-forth click feeling.

  By the cam mechanism, the moving member c1 can move from the upper limit position to the lower limit position. In FIG. 7, the moving member c1 is in the lower limit position. In FIG. 16, the moving member c1 is at the upper limit position. Switching between the engagement state EP and the release state NP occurs between the lower limit position and the upper limit position. While the cam projection p1 is moving along the inclined portion gk, switching between the engagement state EP and the release state NP occurs. When the cam convex portion p1 is in the horizontal portion gh, the engagement state EP is achieved.

  By designing the EP guide groove g1, the lever circumferential position when in the engaged state EP can be set. Depending on the design of the guide groove g1, the lever circumferential position when the engagement state EP and the release state NP are switched can be set. By designing the guide groove g1, the lever circumferential position when in the released state NP can be set. The relationship between the presence or absence of the back-and-forth click feeling and the lever circumferential position can be easily set only by designing the guide groove g1. The degree of freedom in setting the engagement state EP and the release state NP is high.

  The cam mechanism can set the lever circumferential position in the engaged state EP and the lever circumferential position in the released state NP. Therefore, the presence or absence of the back-and-forth click feeling can be switched depending on the lever circumferential position.

  The valve body v1 has a first restricting surface extending in the vertical direction. In the present embodiment, the outer peripheral surface portion 144 has this first restriction surface. The moving member c1 has a second restricting surface extending in the vertical direction. In the present embodiment, the inner peripheral surface portion 138 of the moving member c1 has this second restriction surface.

  As described above, the outer peripheral surface portion 144 has the first restriction surface. The first restriction surface is provided on the upper case 42 that is a member constituting the valve body v1. The upper case 42 is a fixed member that does not move when the lever 46 is operated. This fixing member is a member that does not move when the lever 46 rotates back and forth, and does not move when the lever 46 rotates left and right. The valve body v1 has the fixing member, and the first regulating surface is provided on the fixing member.

  The first restriction surface may be provided other than the outer peripheral surface portion 144. The second restriction surface may be provided other than the inner peripheral surface portion 138.

  When the moving member c1 moves in the vertical direction, the outer peripheral surface portion 144 as the first restricting surface and the inner peripheral surface portion 138 as the second restricting surface slide. Due to this sliding, the movement of the moving member c1 in a direction other than the vertical direction is restricted. That is, the moving direction of the moving member c1 is restricted only in the vertical direction.

  In the present embodiment, the combination of the outer peripheral surface portion 144 and the inner peripheral surface portion 138 is also referred to as a contact mechanism A. The contact mechanism A regulates the movement of the moving member c1 only in the vertical direction. Therefore, the moving direction of the moving member c1 is reliably regulated. For this reason, changes in the back-and-forth click feeling due to manufacturing errors or deterioration of parts over time can be suppressed. Further, the contact mechanism A can stabilize the posture of the moving member c1. This stable posture can increase the accuracy of the back-and-forth click mechanism.

  The lever circumferential position when the engagement state EP and the release state NP are switched is also referred to as a switching lever position. The stable posture of the moving member c1 can suppress variations in the switching lever position.

  The valve body v1 further has the other first restriction surface. In this embodiment, the column part 110 (the outer surface) has this 1st control surface. Thus, the slide protrusion has the first restriction surface. The moving member c1 further has the other second restriction surface. In the present embodiment, the inner surface of the receiving hole 140 of the moving member c1 has this second regulating surface. Furthermore, the inner surface of the receiving groove 142 also has this second regulating surface. As described above, the slide receiving portion has the second restriction surface.

  When the lever 46 rotates back and forth, the column part 110 as the first restriction surface and the receiving hole 140 as the second restriction surface slide. Further, the column part 110 as the first regulating surface and the receiving groove 142 as the second regulating surface slide. Due to these sliding movements, the movement of the moving member c1 in a direction other than the vertical direction is restricted.

  In the present embodiment, the combination of the column part 110 and the receiving hole 140 is also referred to as a contact mechanism B. By the contact mechanism B and the contact mechanism A, the movement of the moving member c1 is more reliably regulated. For this reason, the change of the back-and-forth click feeling due to the manufacturing error or the deterioration of the parts over time can be further suppressed. Further, the posture of the moving member c1 can be further stabilized. Therefore, the accuracy of the back-and-forth click mechanism can be improved.

  In the present embodiment, the combination of the column part 110 and the receiving groove 142 is also referred to as a contact mechanism C. By the contact mechanism C and the contact mechanism A and the contact mechanism B, the movement of the moving member c1 is more reliably regulated. For this reason, the change of the back-and-forth click feeling due to the manufacturing error or the deterioration of the parts over time can be further suppressed. Further, the posture of the moving member c1 can be further stabilized. Therefore, the accuracy of the back-and-forth click mechanism can be improved.

  Thus, in this embodiment, the mechanism which controls the movement to the direction other than the up-down direction of the moving member c1 is implement | achieved by the simple structure. Further, the cam mechanism can move the moving member c1 up and down with a simple structure.

  From the viewpoint of stabilizing the posture of the moving member c1, a plurality of the slide protrusions and the slide receiving portions are preferably provided, and more preferably three or more. From the viewpoint of simplification of the structure, the slide protrusion and the slide receiving portion are preferably 6 or less and more preferably 5 or less.

  In addition, the structure of a slide protrusion (column part 110) and a slide receiving part (receiving hole 140, receiving groove 142) is not limited to the said embodiment. For example, the moving member c1 may have a slide protrusion, and the rotating body 44 may have a slide receiving portion.

  As described above, the lever 46 includes the first engaging portion zk1 for front and rear click (see FIG. 8). The first engaging portion zk1 is convex and / or concave. In the first engagement portion zk <b> 1 of the present embodiment, a plurality of protrusions are arranged along a circle centered on the longitudinal rotation axis of the lever 46. The number of protrusions and / or recesses that the first engagement portion zk1 has may be one.

  As described above, the first engaging portion zk1 for front-rear click is provided on the lever 46. The first engagement portion zk1 is provided on a member that rotates together with the lever 46. In the present embodiment, the first engagement portion zk1 is integrally formed with the lever 46. A separately formed first engagement portion zk <b> 1 may be attached to the lever 46.

  The moving member c1 has a second engagement part zk2 for front and rear clicks (see FIG. 13). The second engagement portion zk2 is convex and / or concave. In the second engagement portion zk2 of the present embodiment, a plurality of protrusions are arranged in parallel. The number of protrusions and / or recesses included in the second engagement portion zk2 may be one.

  The number and / or positions of the first engaging portions zk1 may be one or plural. The number and / or positions of the second engaging portions zk2 may be one or plural. The position and frequency at which the front / rear click engagement occurs in the front / rear rotation range of the lever 46 can be freely changed. The range in which the back-and-forth click feeling is expressed may be a part of the front-rear rotation range of the lever 46 or the entire range.

  The back-and-forth click feeling is generated by the engagement between the first engagement portion zk1 and the second engagement portion zk2. Since the back-and-forth click mechanism is provided outside the valve body v1, the degree of freedom in designing the valve is high. A plurality of valve bodies are precisely arranged inside the valve unit y1, and these valve bodies are assembled in a complicated manner. Space within the valve is limited. If a click mechanism is provided inside the valve, the degree of freedom in designing the valve is reduced. In the present embodiment, since the back-and-forth click mechanism is provided outside the valve body v1, there is no need to change the structure inside the valve. Therefore, a back-and-forth click feeling can be imparted to various valves.

  The valve assembly 40 can be used with the moving member c1 removed. By removing the moving member c1, it is easy to eliminate the back-and-forth click feeling.

  In the above embodiment, the valve body v <b> 1 has the rotating body 44 that rotates in conjunction with the left-right rotation of the lever 46. And this rotation body has a slide protrusion (column part 110). On the other hand, the moving member c1 has a slide receiving part (receiving hole 140, receiving groove 142). Due to the engagement between the slide protrusion and the slide receiving portion, a rotation transmission function for transmitting the rotation of the rotating body 44 to the moving member c1 is achieved. The rotation of the rotating body 44 and the moving member c1 can be reliably performed. By providing a plurality of slide protrusions and slide receiving portions, the rotation transmission function is enhanced. This rotation transmission function is also achieved between the lever 46 and the lever insertion hole 134.

  In the present embodiment, the slide receiving portion (receiving hole 140) is a through hole. The slide receiving portion may not be a through hole. For example, the receiving hole may be a recess.

  The front-rear click first engaging part zk1 may have only a convex, may have only a concave, or may have an unevenness. The front / rear click second engaging portion zk2 may have only a protrusion, may have only a recess, or may have an unevenness. The front-rear click engagement includes all aspects. The engagement that generates some sort of back-and-forth click feeling is front-and-back click engagement. This engagement includes, for example, getting over.

  Due to the engagement between the first engagement portion zk1 and the second engagement portion zk2, the resistance force when the lever 46 is rotated back and forth increases. The sense resulting from this increase in resistance is an example of a back-and-forth click feeling. Further, vibration may occur at the moment when the engagement between the first engagement portion zk1 and the second engagement portion zk2 is released. This vibration creates a typical back-and-forth click feeling. Also, a sound can be generated at the moment of disengagement. This sound is also an example of a back-and-forth click feeling. All senses resulting from the engagement between the first engagement portion zk1 and the second engagement portion zk2 are included in the back-and-forth click feeling.

  As shown in FIG. 8, the first engagement portion zk1 has a plurality of protrusions and / or recesses. For this reason, a plurality of click feelings are generated by one-time one-way back and forth rotation. The number N of back-and-forth click feeling generated by one-way back-and-forth rotation can be freely set. In addition, the rotation range in which the back-and-forth click feeling is generated in the front-rear rotation range of the lever 46 can be freely set. Needless to say, a back-and-forth click feeling may occur in a part of the front-rear rotation range of the lever 46.

  The left / right click mechanism generates a click feeling associated with the left / right rotation of the lever 46. This click feeling is also referred to as a left-right click feeling.

  As described above, the upper case 42 has a convex portion as the first engaging portion sk1 for left and right clicks (see FIG. 11B). The upper case 42 is the fixing member. The fixing member has a first engagement portion sk1.

  As shown in FIG. 11B, the upper case 42 has a contact inner peripheral surface portion sm1. The contact inner peripheral surface portion sm1 extends on both sides of the first engagement portion sk1.

  As described above, the rotating body 44 has the contact member st2 (see FIG. 12). The contact member st2 has a second click portion second engagement portion sk2. The front end portion of the contact member st2 is the second engagement portion sk2.

  The second engagement portion sk2 (contact member st2) is in contact with the contact inner peripheral surface portion sm1 or the first engagement portion sk1. When the lever 46 is rotated left and right, the second engagement portion sk2 moves on the contact inner peripheral surface portion sm1. When the lever circumferential position reaches a predetermined position, the second engagement portion sk2 engages (contacts) with the first engagement portion sk1. This engagement creates a left-right click feeling. Depending on the position of the first engagement part sk1 (convex part), a lever circumferential position where a left-right click feeling is generated can be set.

  The first engagement part sk1 may have only a convex, may have only a concave, or may have an unevenness. The second engagement part sk2 may have only a convex, may have only a concave, or may have an unevenness. Creates a left-right click feeling. The left-right click engagement includes all aspects. The engagement that generates some left-right click feeling is left-right click engagement. This engagement includes, for example, getting over.

  Due to the engagement between the first engagement portion sk1 and the second engagement portion sk2, the resistance force when the lever 46 is rotated left and right changes. The sense resulting from this change in resistance is an example of a left-right click feeling. In addition, vibration may occur at the moment when the engagement between the first engagement portion sk1 and the second engagement portion sk2 is released. This vibration produces a typical left-right click feeling. Also, a sound can be generated at the moment of disengagement. This sound also produces a typical left-right click feeling. All senses resulting from the engagement between the first engagement portion sk1 and the second engagement portion sk2 are included in the left-right click feeling.

  FIG. 19 is a plan view for explaining left-right rotation of the handle 14. It is not the lever 46 but the handle 14 that is actually operated. However, the lever 46 and the handle 14 are integrated. The left-right rotation of the handle 14 is synonymous with the left-right rotation of the lever 46.

  The entire left / right pivoting range of the handle 14 (lever 46) is from the left limit ML to the right limit MR. In the present embodiment, the angle of the left-right rotation full range RF is θf. In the present embodiment, the entire left-right rotation range RF of the lever 46 is asymmetrical with respect to the front position S1. In the present embodiment, the angle between the right limit MR and the front position S1 is 20 °, and the angle between the left limit ML and the front position S1 is 80 °. Needless to say, the left-right rotation full range RF may be bilaterally symmetric with respect to the front position S1.

  In the angle range RT1, it is located on the right side when viewed from the user. When the circumferential position (lever circumferential position) of the handle 14 is in the angle range RT1, hot water is not mixed. That is, when the circumferential position of the handle 14 is in the angle range RT1, the ratio of water is 100%. A range RT1 is a water discharge position. The right side seen from the user is also called the water side.

  The angle range RT1 includes the front position S1. When the lever circumferential position is at the front position S1, hot water is not mixed. That is, when the lever circumferential position is at the front position S1, the ratio of water is 100%.

  The angle range RT2 is on the left side of the angle range RT1 when viewed from the user. When the circumferential position of the handle 14 is in the angle range RT2, hot water is mixed. That is, when the circumferential position of the handle 14 is in the angle range RT2, hot water and water are mixed, or water is not mixed (hot water is 100%). Range RT2 is a hot water mixing discharge position and a hot water discharge position. The left side seen from the user is also called the hot water side.

  From the viewpoint of energy saving, it is preferable that the engagement state EP is achieved in at least a part of the angle range RT2. From the viewpoint of energy saving, it is also preferable that the engagement state EP is achieved on the high temperature side in the angle range RT2. From the viewpoint of energy saving, it is preferable that the engagement state EP is achieved over the entire angle range RT2. In these configurations, the user can be notified of hot water discharge by a back-and-forth click feeling. From the viewpoint of further enhancing the notification function, it is preferable that the release state NP is achieved in at least a part of the angle range RT1, and it is more preferable that the release state NP is achieved in the entire angle range RT1.

  If the angle range RT2 is too small, the angle range of the handle 14 that can adjust the hot / cold water mixing ratio becomes too narrow, and the change of the hot / cold water mixing ratio may become too rapid. In this respect, the angle θ2 of the range RT2 is preferably 40 degrees or more, more preferably 50 degrees or more, and particularly preferably 55 degrees or more. If the angle range RT2 is too large, the angle range of the handle 14 that can adjust the hot / cold water mixing ratio becomes too wide, and the operability deteriorates. From this viewpoint, the angle θ2 of the range RT2 is preferably 100 degrees or less, more preferably 90 degrees or less, and particularly preferably 70 degrees or less.

  From the viewpoint of energy saving, the angle θ1 of the range RT1 is preferably 10 degrees or more, more preferably 15 degrees or more, and more preferably 20 degrees or more. When the angle θ1 is excessive, the range in which the ratio of water is 100% becomes too wide and the operability is deteriorated. In this respect, the angle θ1 of the range RT1 is preferably 60 degrees or less, more preferably 50 degrees or less, and particularly preferably 40 degrees or less.

  In FIG. 19, reference numeral K <b> 1 is a boundary between a range where hot water can be discharged and a range where only water can be discharged. In the present embodiment, the boundary K1 is located on the hot water side with respect to the lever front position S1. Therefore, even when the lever circumferential position is slightly deviated from the front position S1, hot water is not discharged. Therefore, the energy saving property is further enhanced.

  In FIG. 19, the angle θk indicates the rotation angle between the front position S1 and the boundary K1. From the viewpoint of energy saving, the angle θk is preferably 3 ° or more, and more preferably 5 ° or more. From the viewpoint of temperature controllability, it is better that the angle θ2 is larger. In this respect, the angle θk is preferably 10 ° or less, and more preferably 8 ° or less.

  From the viewpoint of enhancing the notification function for hot water discharge, it is preferable that the lever circumferential position where the left-right click feeling is at the boundary K1. From the same viewpoint, it is also preferable that the lever circumferential position where the left-right click feeling is generated is the boundary K1 or the vicinity thereof. Specifically, the range of the boundary K1 ± 10 ° is preferable, the range of the boundary K1 ± 7 ° is more preferable, the range of the boundary K1 ± 5 ° is more preferable, and the range of the boundary K1 ± 3 ° is more preferable.

  From the viewpoint of enhancing the notification function for hot water discharge, the switching lever position is preferably at the boundary K1. From the same viewpoint, the switching lever position is preferably at the boundary K1 or in the vicinity thereof. Specifically, the range of the boundary K1 ± 10 ° is preferable, the range of the boundary K1 ± 7 ° is more preferable, the range of the boundary K1 ± 5 ° is more preferable, and the range of the boundary K1 ± 3 ° is more preferable.

  It may be difficult to determine whether hot water is mixed based only on the temperature of the discharged water. For example, when the mixing ratio of hot water is small, the temperature is not so high as compared with the case where water is 100%. Therefore, in this case, mixing of hot water may not be noticed only from the temperature of the discharged water. Even when the mixing ratio of hot water is high, the temperature of the discharged water may not rise until the hot water heated by a heating device such as a water heater reaches the faucet. Also in this case, the mixing of hot water may not be noticed only from the temperature of the discharged water. Further, it may be impossible to accurately determine whether or not hot water is mixed depending on the circumferential position (lever circumferential position) of the handle 14. In these cases, hot water may be mixed against the user's intention. In this case, energy is wasted. In the above embodiment, whether hot water is mixed or not is determined based on the presence or absence of the back-and-forth click feeling. Further, in the above embodiment, the lever circumferential position where hot water is mixed can be determined based on the left-right click feeling. Therefore, waste of energy is suppressed.

  By changing the shape of the first engagement portion zk1 and / or the second engagement portion zk2, the specification of the back-and-forth click feeling can be freely designed. By changing the shape of the first engagement portion sk1 and / or the second engagement portion sk2, the specification of the left-right click feeling can be freely designed. In this embodiment, the degree of freedom in designing the back-and-forth click feeling and the left-right click feeling is high.

  The click feeling is perceived by humans. The click feeling can provide the user with various information that cannot be obtained visually. Preferably, the click feeling is sensed by hearing and / or tactile sense. From the viewpoint of enhancing the sensitivity, hearing and touch may be used in combination. Sound is an example of a sense of click sensed by hearing. Examples of the click feeling detected by tactile sensation include change in resistance and vibration during lever operation. The duration of the click feeling is not limited. A typical click feeling includes a resistance change and a sound for a relatively short time, but a click feeling for a relatively long time is also possible.

  FIG. 20 is a perspective view of a valve assembly 400 according to another embodiment. The valve assembly 400 includes an upper case 420, a moving member c100, and an elastic member cs1.

  FIG. 21A is a perspective view of the moving member c100. FIG. 21B is a perspective view of the upper case 420.

  The valve assembly 400 and the above-described valve assembly 40 have different cam mechanisms. As shown in FIG. 21A, a cam projection p100 is provided on the inner peripheral surface of the moving member c100. This cam convex portion p100 is an example of an inner peripheral cam portion. As shown in FIG. 21B, a cam step g <b> 100 is provided on the outer peripheral surface portion of the upper case 420. This cam step g100 is an example of a cam guide. This cam step g100 is an example of an outer peripheral cam portion.

  As shown in FIG. 21A, the cam projection p100 has a lower surface p102 and an inclined surface p104. Although not shown in FIG. 21A, three cam projections p100 are provided. These three cam projections p100 are equally arranged in the circumferential direction.

  As shown in FIG. 21B, the cam step g100 has an upper surface g102 and an inclined surface g104. Although not completely illustrated in FIG. 21B, three sets of the upper surface g102 and the inclined surface g104 are provided. These three sets are equally arranged in the circumferential direction.

  In the assembled valve assembly 400, the lower surface p102 and the upper surface g102 are horizontal. When the lower surface p102 and the upper surface g102 are in contact, the moving member c100 is in the lower limit position. Due to the rotation of the moving member c100, the lower surface p102 and the upper surface g102 are separated from each other, and the inclined surface p104 and the inclined surface g104 can come into contact with each other. When the moving member c100 is further rotated, the inclined surface p104 slides up the inclined surface g104. For this reason, the moving member c100 can rise. When the moving member c100 is rotated in the reverse direction, the moving member c100 can be lowered.

  Thus, the cam mechanism in the valve assembly 400 converts the rotational movement of the moving member c100 into the vertical movement of the moving member c100 by the engagement of the cam convex portion p100 and the cam step g100.

  In the cam mechanism, the same cam engagement is evenly arranged at a plurality of locations in the circumferential direction. For example, in the valve assembly 40, the cam engagement of the cam projection p1 and the guide groove g1 is evenly arranged at three locations in the circumferential direction. Further, in the valve assembly 400, the cam engagements of the cam projection p100 and the cam step g100 are equally arranged at three locations in the circumferential direction. With such a configuration, the posture of the moving member is stabilized, and the cam mechanism can operate stably. When the number of cam mechanisms arranged uniformly in the circumferential direction is Nc, the number Nc is 3 in the valve assembly 40 and the valve assembly 400. From the viewpoint of stable operation of the cam mechanism, the number Nc is preferably 2 or more, and more preferably 3 or more. The number Nc is preferably 5 or less, and more preferably 4 or less, from the viewpoint of expanding the left-right rotation range of the lever 46.

  In the cam mechanism, the rotational motion is converted into a translational motion in a direction along the rotational axis. In addition to the two types of cam mechanisms exemplified in the above embodiment, a known cam mechanism may be employed.

  As described above, in the valve assembly 40, the guide groove g1 is employed. The guide groove g1 may not be integrally formed with the upper case 42. Instead of the guide groove g1, a parallel pin, a spring pin, or the like may be employed. Parallel pins and spring pins are commercially available. In view of ease of assembly and certainty of cam engagement, a spring pin is preferable. Examples of the material of the spring pin include spring steel and spring stainless steel. In consideration of corrosion resistance, spring stainless steel is preferable.

  The elastic member cs1 is a compression coil spring. The elastic member cs1 is a member that is not included in the valve assembly 40 described above. The elastic member cs1 biases the moving member c100 downward. The elastic member cs1 ensures the lowering of the moving member c100. In addition to the weight of the moving member c100, the biasing force of the elastic member cs1 acts, so that the inclined surface p104 slides down the inclined surface g104 smoothly. Therefore, the moving member c100 can be accurately lowered. Therefore, the accuracy of the vertical movement of the moving member c100 is increased. Further, the urging force of the elastic member cs1 ensures the engagement between the first engagement portion zk1 and the second engagement portion zk2. Therefore, stable front-rear click engagement can be achieved.

  In the valve assembly 40 and the valve assembly 400 described above, a torsion spring is employed as the front-rear click elastic member zd1 (see FIG. 13). An elastic member other than a torsion spring may be employed. Examples of the other back-and-forth click elastic member zd1 include a compression coil spring and a leaf spring. The elastic member zd1 only needs to bias the contact member zt1 (first engagement portion zk1) toward the second engagement portion zk2.

  Due to component tolerances, play (play) may occur in the contact member zt1. From the viewpoint of achieving a positive bias by absorbing this play, the elastic member zd1 is preferably a torsion spring or a compression coil spring. Considering the degree of freedom of layout, a torsion spring is more preferable.

  In the valve assembly 40 described above, the main body ch1 of the moving member c1 and the contact member zt1 are separate members. Needless to say, the front-rear click first engaging portion zk1 may be integrally formed with the moving member c1. In this case, for example, a concavo-convex portion may be provided in the resin forming portion that can be elastically deformed. This uneven | corrugated | grooved part can function as the 1st engaging part zk1 for back-and-forth clicks. For example, the resin forming portion may be formed in a bridge shape, and the uneven portion may be disposed in the center of the bridge-shaped resin forming portion.

  As shown in the enlarged portion of FIG. 10D, the cross-sectional shape of the guide groove g1 has a taper. Due to this taper, foreign matter that has entered the guide groove g1 can be easily discharged.

  What is indicated by a double arrow θt in the enlarged portion of FIG. 10D is the taper angle of the guide groove g1. From the viewpoint of enhancing the function of guiding the cam convex portion p1, the taper angle θt is preferably 90 degrees or less, more preferably 60 degrees or less, and more preferably 45 degrees or less. From the viewpoint of enhancing the above-described foreign matter dischargeability, the taper angle θt is preferably 10 degrees or more, more preferably 20 degrees or more, and more preferably 30 degrees or more.

  In the valve assembly 40, the outer peripheral cam portion has the guide groove g1 (cam guide portion), and the inner peripheral cam portion has the cam convex portion p1. Of course, the opposite configuration is also possible. That is, the outer peripheral cam part may have the cam convex part p1, and the inner peripheral cam part may have the guide groove g1 (cam guide part).

  Resin and metal are illustrated as a material of the said moving member. This resin includes a fiber reinforced resin. From the viewpoint of slidability and wear resistance, POM resin, PA resin, PPO resin, PPS resin, and their fiber reinforcing materials are preferable as the material of the moving member. POM resin is polyacetal resin. PA resin is a polyamide resin. PPO resin is polyphenylene oxide resin. PPS resin is polyphenylene sulfide resin. In the above embodiment, a fiber reinforced POM resin is used.

  Resin and metal are illustrated as a material of the said upper case. This resin includes a fiber reinforced resin. The sound generated when the click mechanism appears is preferably comfortable and easy to hear. The material of the upper case affects this sound. From the viewpoint of obtaining good sound, durability, rust resistance, and hygiene, stainless steel alloys and fiber reinforced resins are preferable as the upper case material. In the above embodiment, a glass fiber reinforced PPS resin is used.

  Examples of the material of the rotating body include resin and metal. This resin includes a fiber reinforced resin. An unpleasant sound may be generated if metals slide during lever operation. In addition, since the material of the sliding surface fluctuates the frictional force, it affects the operability of the lever. From the viewpoint of operability and avoidance of unpleasant noise, the material of the rotating body is preferably a resin, and more preferably a resin that does not contain reinforcing fibers. In the above embodiment, a POM resin not containing reinforcing fibers was used.

  Examples of the material of the lever shaft include resin and metal. This resin includes a fiber reinforced resin. From the viewpoint of suppressing water corrosion, stainless steel alloys and resins are preferred. In the above embodiment, a stainless alloy is used.

  Resin and metal are illustrated as a material of the upper member of the said movable valve body. This resin includes a fiber reinforced resin. An unpleasant sound may be generated if metals slide during lever operation. From the viewpoint of avoiding unpleasant noise, the upper member is preferably made of resin. Moreover, the manufacturing cost as the whole movable valve body is suppressed by using this upper member as resin. In the above embodiment, a POM resin not containing reinforcing fibers was used.

  Examples of the material of the lower member of the movable valve body include resin (including fiber reinforced resin), metal, and ceramic. From the viewpoint of wear resistance in sliding with the fixed valve body, ceramic is preferable. This ceramic is also preferable from the viewpoints of corrosiveness to water, strength and durability. In the above embodiment, ceramic is used.

  Examples of the material of the fixed valve body include resin (including fiber reinforced resin), metal, and ceramic. From the viewpoint of wear resistance in sliding with the movable valve body (lower member), ceramic is preferable. This ceramic is also preferable from the viewpoints of corrosiveness to water, strength and durability. In the above embodiment, ceramic is used.

  Examples of the material for the packing and the O-ring include a resin and a rubber material (vulcanized rubber). The stretchability improves the assemblability and can reduce manufacturing errors (such as dimensional errors). From these viewpoints, a rubber material is preferable. In the above embodiment, a rubber material is used.

  Examples of the material of the lower case include resin (including fiber reinforced resin) and metal. From the viewpoint of avoiding unpleasant noise and strength, a fiber reinforced resin is preferable, and a glass fiber reinforced resin is more preferable. In the above embodiment, a glass fiber reinforced PPS resin is used.

  The present application also describes other inventions that are not included in the claimed invention (including independent claims). Respective forms, members, configurations, and combinations thereof described in the claims and embodiments of the present application are recognized as inventions based on the respective functions and effects.

  Each form, member, configuration, etc. shown in each of the above embodiments is not limited to all of the forms, members, or configurations of these embodiments. It can be applied to all described inventions.

  The present invention can be applied to a hot and cold water mixing tap for any application.

DESCRIPTION OF SYMBOLS 10 ... Hot water mixing tap 12 ... Mixing stopper main body 14 ... Handle 16 ... Discharge part 18 ... Hot water introduction pipe 20 ... Water introduction pipe 22 ... Discharge pipe 40, 400 ... Valve assembly 42, 420 ... upper case 44 ... rotating body 46 ... lever 48 ... lever shaft 52 ... movable valve body 54 ... fixed valve body 60 ... packing 62 ..Lower case 110 ... Column (slide protrusion)
138 ... Inner peripheral surface portion (second regulating surface) of moving member
140 ... receiving hole (slide receiving part)
142 ... receiving groove (slide receiving part)
144 ... Outer peripheral surface portion of valve body (first regulating surface)
v1 ... Valve body y1 ... Valve unit c1 ... Moving member ch1 ... Main body of moving member sk1 ... First engaging portion for left / right click sk2 ... Second engaging portion for left / right click zk1... First engagement portion for front and rear clicks zk2. Second engagement portion for front and rear clicks zd1... Elastic member for front and rear clicks zt1. Elastic member st2 ... Contact member for left and right click g1 ... Guide groove (cam guide part)
p1 ... Cam convex part g100 ... Cam step (cam guide part)
p100 ... convex part for cam

Claims (7)

A valve body having a valve unit, a lever and an outer peripheral surface; and
A movable member that can rotate in conjunction with the left-right rotation of the lever, and that can move up and down in conjunction with the rotation;
With
The moving member has an inner peripheral surface portion;
The inner peripheral surface portion has an inner peripheral cam portion,
The outer peripheral surface portion has an outer peripheral cam portion,
A cam mechanism is formed by the engagement between the outer peripheral cam portion and the inner peripheral cam portion,
The cam mechanism is configured to convert relative rotation between the inner peripheral surface portion and the outer peripheral surface portion into vertical movement of the moving member,
The lever has a first engagement part for front and rear clicks,
The moving member has a second engagement part for front and rear clicks,
Due to the click engagement between the front and rear click first engagement portion and the front and rear click second engagement portion, a front and rear click feeling is generated,
A hot and cold water mixing tap capable of switching between an engaged state in which the click engagement is achieved and a released state in which the click engagement is released due to the vertical position of the moving member. The outer peripheral cam portion is one of a cam convex portion or a cam guide portion,
The inner peripheral cam portion is the other of the cam convex portion or the cam guide portion,
The hot and cold water mixing tap according to claim 1, wherein the cam mechanism is formed by engagement of the cam convex portion and the cam guide portion. The valve body has a first regulating surface extending in the vertical direction;
The moving member has a second restricting surface extending in a vertical direction;
The hot and cold water mixing plug according to claim 1 or 2, wherein the first restriction surface and the second restriction surface restrict movement of the moving member in a direction other than the vertical direction. It further has an elastic member for front and rear click,
The first engaging part for front and rear click has a first contact surface,
The second engaging portion for front and rear click has a second contact surface;
The hot and cold water mixing plug according to any one of claims 1 to 3, wherein, in the engaged state, the front-rear click elastic member presses the second contact surface against the first contact surface. The valve body further has a rotating body that rotates in conjunction with the left-right rotation of the lever,
One of the rotating body or the moving member has a slide protrusion extending in the vertical direction,
The other of the rotating body or the moving member has a slide receiving portion extending in the vertical direction,
The hot and cold water mixing tap according to any one of claims 1 to 4, wherein the slide receiving portion is guided by the slide protrusion when the moving member moves in the vertical direction. The valve body has a first engaging portion for left and right clicks,
The rotating body has a second engaging portion for left and right clicks,
Engagement of the first engaging part for left and right clicks and the second engaging part for left and right clicks occurs in at least a part of the region in the left-right rotation of the lever, and this engagement causes a left-right click feeling. The hot and cold water mixing tap according to any one of claims 1 to 5. A faucet device comprising the hot and cold water mixing tap according to any one of claims 1 to 6 .

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