JP2014169764A - Hot water and cold water mixing plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water and cold water mixing plug of which operability and durability can be improved.SOLUTION: A hot water and cold water mixing plug 10 comprises a rotary body 44, lever 46, rotary slide member 50, movable valve body 60 and fixed valve body 62. The movable valve body 60 can be rotated in respect to the fixed valve body 62 due to rightward or leftward turning of the lever 46. Rotation of the movable valve body 60 enables a hot water and cold water mixing ratio to be adjusted. Forward or rearward rotation of the lever 46 enables the movable valve body to be moved in respect to the fixed valve body. This motion enables a discharging amount to be adjusted. Under a stopped state of supplying water, a rotating angle of the movable valve body 60 when the lever 46 is rotated rightward or leftward over its full range is defined as A1. Under its maximum discharged state, the rotating angle of the movable valve body 60 when the lever 46 is rotated rightward or leftward over its full range is defined as A2. In the hot water and cold water mixing plug 10, the angle A2 is larger than the angle A1.

Description

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

  There is known a faucet capable of adjusting the discharge rate 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) and the mixing ratio can be adjusted, and the discharge amount can be adjusted by operating the lever handle back and forth (up and down). Is possible.

  Japanese Patent Laying-Open No. 2010-185569 discloses a hot and cold water mixing tap capable of discharging only water in a state where an operation lever is in a front position.

JP 2010-185569 A

  In JP 2010-185569 A, a desired water discharge specification is realized by devising the shape of the hole of the movable valve element. When the shape of the hole is restricted, the temperature controllability can be reduced. Hot water mixing with higher operability is preferred.

  In the present invention, a new structure has been found that can improve operability and durability.

  An object of the present invention is to provide a hot and cold water mixing tap that can improve operability and durability.

A preferable hot and cold water mixing plug according to the present invention is a fixed valve body having a hot water valve hole, a water valve hole and a discharge valve hole, and is slidably disposed on the upper surface of the fixed valve body, and has a flow path forming recess. And a movable valve body having a lever engaging hole, a lever capable of turning left and right and turning back and forth,
A rotating body that supports the lever so that the front-rear rotation is possible and rotates in conjunction with the left-right rotation of the lever; a rotating slide member disposed between the rotating body and the movable valve body; It has. The rotating slide member is slidably engaged with the rotating body. The rotating slide member is engaged with the movable valve body in a rotatable state. The rotary slide member is engaged with the lower end portion of the lever, and by this engagement, the movement of the lower end portion of the lever is transmitted to the movable valve body via the rotary slide member. Due to the left-right rotation of the lever, the movable valve body can be rotated with respect to the fixed valve body, and the hot water / water mixing ratio can be adjusted by the rotation of the movable valve body. By moving the lever back and forth, the movable valve body can move with respect to the fixed valve body, and the discharge amount can be adjusted by this movement. In the water stop state, the rotation angle of the movable valve body when the lever is rotated left and right in the entire range is A1. In the maximum discharge state, the rotation angle of the movable valve body when the lever is rotated left and right in the entire range is A2. The angle A2 is larger than the angle A1.

  Preferably, the movable valve body moves in the direction D1 by the forward and backward rotation of the lever. Preferably, the lever front-rear rotation direction D2 is inclined with respect to the direction D1. Preferably, only water is discharged when the lever is in the front position.

  Preferably, a circular side surface is provided on one of the movable valve body and the rotary slide member. Preferably, a circular concave side surface is provided on the other of the movable valve body or the rotary slide member. Preferably, the circular side surface and the circular concave side surface are in surface contact.

  Preferably, an upper case for accommodating the movable valve body is further provided. Preferably, a slide engagement recess is provided on one of the inner surface of the upper case and the movable valve body. Preferably, an engagement protrusion is provided on the inner surface of the upper case or the other of the movable valve body. Preferably, the engagement protrusion is engaged with the slide engagement recess. Preferably, the engagement protrusion moves in the slide engagement recess as the lever rotates back and forth. Preferably, the movable valve body rotates while maintaining the engagement between the engagement protrusion and the slide engagement recess as the lever rotates left and right.

  Preferably, when the lever is rotated back and forth to the discharge side while the lever is in the front position, the movable member rotates to the water side.

  A hot and cold water mixing tap excellent in operability and durability can be obtained.

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 an exploded perspective view of the valve assembly. FIG. 6 is a partially cutaway perspective view of the valve assembly. FIG. 7 is a perspective view of the valve assembly with the upper case removed. FIG. 8 is a side view of the valve assembly. In FIG. 8, the valve assembly is in a water stop state. FIG. 9 is a cross-sectional view taken along the line AA in FIG. FIG. 10 is a cross-sectional view taken along line BB in FIG. FIG. 11 is a cross-sectional view taken along the line CC of FIG. 12 is a cross-sectional view taken along the line DD of FIG. FIG. 13 is a perspective view of the fixed valve body. 14A is a plan view of the fixed valve body, FIG. 14B is a side view of the fixed valve body, and FIG. 14C is a bottom view of the fixed valve body. FIG. 15 is a perspective view of the lower member of the movable valve body. 16 (a) is a plan view of the lower member, FIG. 16 (b) is a side view of the lower member, and FIG. 16 (c) is a bottom view of the lower member. 17 (a) is a plan view of the upper case, FIG. 17 (b) is a side view of the upper case, and FIG. 17 (c) is a side view of the upper case viewed from another viewpoint. FIG. 17D is a cross-sectional view taken along the line dd in FIG. 17C, and FIG. 17E is a bottom view of the upper case. 18A is a perspective view of the rotating body, and FIG. 18B is a perspective view of the rotating body viewed from another viewpoint. FIG. 19A is a plan view of the rotating body, and FIG. 19B is a bottom view of the rotating body. 20 (a) is a side view of the rotating body, FIG. 20 (b) is a side view of the rotating body viewed from another viewpoint, and FIG. 20 (c) is a cc line in FIG. 19 (b). FIG. FIG. 21 is a perspective view of the upper member of the movable valve body. FIG. 22 is a plan view of the upper member of the movable valve body. 23 is a cross-sectional view taken along line AA in FIG. 24A is a perspective view of the upper member as viewed obliquely from below, FIG. 24B is a bottom view of the upper member, and FIG. 24C is a side view of the upper member. FIG. 25 is a perspective view of the rotary slide member. FIG. 26 is a plan view of the rotary slide member. 27 is a cross-sectional view taken along line AA in FIG. FIG. 28A is a perspective view of the rotary slide member as viewed obliquely from below, FIG. 28B is a bottom view of the rotary slide member, and FIG. 28C is a side view of the rotary slide member. FIG. 29 is a plan view and a cross-sectional view of the valve assembly in a water stop state. FIG. 30 is a plan view and a cross-sectional view of the valve assembly in a discharge state. FIG. 31 is a plan view for explaining the horizontal rotation of the handle (lever).

  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 hot-water mixing tap 10 has a fixing portion 23 for attaching the hot-water mixing tap 10 to equipment such as a sink, a connection portion 25 connected to the hot water supply pipe, and a connection portion 27 connected to the water supply pipe. ing.

  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.

  FIG. 4 is a perspective view of the valve assembly 40. FIG. 5 is an exploded perspective view of the valve assembly 40. FIG. 6 is a partially cutaway perspective view of the valve assembly 40. In FIG. 6, a part of the upper case 42 (described later) is removed. FIG. 7 is a perspective view showing the valve assembly 40 with the upper case 42 removed. FIG. 8 is a side view of the valve assembly 40. FIG. 9 is a cross-sectional view taken along the line AA in FIG. FIG. 10 is a cross-sectional view taken along line BB in FIG. FIG. 11 is a cross-sectional view taken along the line CC of FIG. 12 is a cross-sectional view taken along the line DD of FIG. 4 and 6 to 12, the valve assembly 40 is in a water stop state.

  FIG. 13 is a perspective view of a fixed valve body 62 to be described later. FIG. 14A is a plan view of the fixed valve body 62. FIG. 14B is a side view of the fixed valve body 62. FIG. 14C is a bottom view of the fixed valve body 62. FIG. 15 is a perspective view of a lower member 88 described later. FIG. 16A is a plan view of the lower member 88. FIG. 16B is a side view of the lower member 88. FIG. 16C is a bottom view of the lower member 88.

  The valve assembly 40 is disposed inside the hot and cold water mixing tap 10. The valve assembly 40 is disposed inside the outer cover 13. The valve assembly 40 can be handled alone. In the hot-water mixing tap 10, the valve assembly 40 is replaceable.

  As shown in FIGS. 4 and 5, the valve assembly 40 includes an upper case 42, a rotating body 44, a lever 46 and a lever shaft 48.

  As shown in FIG. 5 and the like, the valve assembly 40 includes a movable valve body 60, a fixed valve body 62, a packing 64, an O-ring 66, an O-ring 67, and a lower case 68.

  The handle 14 is fixed to the lever 46 by a screw (not shown). The lever 46 moves integrally with the handle 14.

  As shown in FIG. 5 and the like, the lower case 68 has a hot water inlet 70, a water inlet 72, and a discharge outlet 74. Openings corresponding to the hot water inlet 70, the water inlet 72, and the discharge port 74 are provided at the lower part of the lower case 68, and the hot water inlet pipe 18 and the water inlet pipe 20 are respectively provided in these openings. And the discharge pipe 22 is connected.

  The fixed valve body 62 is fixed to the upper side of the lower case 68. The lower case 68 is provided with an engaging convex portion 76 for fixing the fixed valve body 62 and an engaging convex portion 77 for fixing the upper case 42. The fixed valve body 62 is provided with an engagement recess 78 that engages with the engagement protrusion 76.

  As shown in FIGS. 5 and 14A, the fixed valve body 62 includes a hot water valve hole 80, a water valve hole 82, and a mixed water valve hole 84. The hot water valve hole 80 is connected to the hot water inlet 70 of the lower case 68. A watertight state of this connection is maintained by the packing 64. The water valve hole 82 is connected to the water inlet 72 of the lower case 68. A watertight state of this connection is maintained by the packing 64. The mixed water valve hole 84 is connected to the discharge port 74 of the lower case 68. A watertight state of this connection is maintained by the packing 64.

  As shown in FIG. 5, the movable valve body 60 includes an upper member 86 and a lower member 88. The upper member 86 is fixed to the lower member 88. This fixing is achieved by the engagement between the convex portion 90 and the concave portion 92. In the present embodiment, the upper member 86 and the lower member 88 are separate members. By using separate members, the optimum material and manufacturing method can be selected for each of the upper member 86 and the lower member 88. The movable valve body 60 may be integrally formed as a whole.

  Further, the movable valve body 60 has an O-ring 89. The O-ring 89 is disposed between the upper member 86 and the lower member 88.

  As shown in FIGS. 5, 15, and 16 (a), the lower member 88 has a through hole 94. The upper opening of the through hole 94 is closed by the upper member 86. By this blockage, the through hole 94 forms a flow path forming recess 96. The flow path forming recess 96 is opened downward. The flow path forming recess 96 is open to the fixed valve body 62 side.

  On the upper surface of the fixed valve body 62, a smooth surface PL1 is provided. A portion where the holes 80, 82 and 84 are not present has a smooth surface PL1. On the other hand, a smooth surface PL2 is provided on the lower surface of the lower member 88 (movable valve body 60). A smooth surface PL2 is provided in a portion where the flow path forming recess 96 is not formed. A watertight state is ensured by surface contact between the smooth surface PL1 and the smooth surface PL2.

  As shown in FIG. 5, a rotating slide member 50 is provided between the rotating body 44 and the movable valve body 60. A lever engaging hole 98 that engages with the lower end portion 95 of the lever 46 is provided on the upper surface of the rotary slide member 50. The lower end portion 95 of the lever 46 is inserted into the lever engaging hole 98. The movement of the lower end portion 95 is transmitted to the movable valve body 60 via the rotary slide member 50. In conjunction with the movement of the lever 46, the movable valve body 60 slides on the fixed valve body 62. Details of the movement of the rotary slide member 50 will be described later.

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

  On the upper surface of the rotary slide member 50, an engagement convex portion 99 that can be engaged with the rear surface of the rotating body 44 is provided. The role of the engaging projection 99 will be described later.

  As shown in FIG. 5, the lever 46 has a shaft hole 100. A lever shaft 48 is inserted into the shaft hole 100. The lever 46 can rotate around the lever shaft 48. This rotation is also referred to as front-rear rotation.

  FIG. 17A is a plan view of the upper case 42. FIG. 17B is a side view of the upper case 42. FIG. 17C is a side view of the upper case 42. The viewpoint in FIG. 17C is 90 degrees different from the viewpoint in FIG. FIG. 17D is a cross-sectional view taken along the line dd in FIG. FIG. 17E is a bottom 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.

  The large diameter cylindrical portion 122 has an engagement hole 130. The engagement hole 130 is engaged with the engagement convex portion 77 of the lower case 68 (see FIG. 4). By this engagement, the upper case 42 is fixed to the lower case 68. The upper case 42 only needs to accommodate the movable valve body 60 and have the engagement protrusion E3 or the slide engagement recess R3 on the inner surface. More preferably, the upper case 42 is fixed to the lower case 68 as in the above embodiment. When the upper case 42 is fixed to the lower case 68, the fixing method is not limited. The form of engagement between the upper case 42 and the lower case 68 is not limited to the above embodiment.

  As shown in FIGS. 17D, 17E, and 6, the upper case 42 has an engaging protrusion E3. In FIG. 6, this engagement protrusion E3 is shown three-dimensionally. As shown in the enlarged portion of FIG. 17E, the engagement protrusion E3 includes an expansion portion E30 and an extension portion E32. The extending part E32 extends between the inner surface of the large diameter cylindrical part 122 and the extended part E30. The engagement protrusion E3 extends downward from the lower surface of the connecting portion 124 (see FIG. 17D).

  As shown in the enlarged portion of FIG. 17E, the extended portion E30 has a first contact surface E301 and a second contact surface E302. The two contact surfaces E301 and E302 are arranged symmetrically. The width of the extended portion E30 is wider than the width of the extending portion E32. In addition, in order to show clearly the engagement protrusion part E3, in the enlarged part of FIG.17 (e), the engagement protrusion part E3 is hatched.

  FIG. 18A is a perspective view of the rotating body 44. FIG. 18 (a) is a perspective view seen obliquely from above. FIG. 18B is a perspective view of the rotating body 44. FIG. 18B is a perspective view seen from obliquely below. FIG. 19A is a plan view of the rotating body 44. FIG. 19B is a bottom view of the rotating body 44. FIG. 20A is a side view of the rotating body 44. FIG. 20B is a side view of the rotating body 44. The viewpoint in FIG. 20B is 90 degrees different from the viewpoint in FIG. FIG.20 (c) is sectional drawing along the cc line | wire of FIG.19 (b).

  As shown in FIG. 20A and the like, the rotating body 44 has a base portion 102 and an upper portion 104. The upper part 104 has a lever insertion hole 106 and a shaft hole 108. The base 102 is slidably attached to the rotary slide member 50. The lever insertion hole 106 passes through the rotating body 44.

  The lever 46 is inserted into the lever insertion hole 106. 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 fixed to the rotating body 44 in a rotatable state. 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 is rotated left and right integrally with the lever 46.

  The outer diameter of the outer peripheral surface 105 of the upper portion 104 is substantially equal to the inner diameter of the small diameter cylindrical portion 120 of the upper case 42. The upper portion 104 of the rotating body 44 is held by the small diameter cylindrical portion 120 in a rotatable state. In this rotation, the outer peripheral surface 105 of the upper part 104 and the inner peripheral surface 121 of the small diameter cylindrical part 120 slide.

  The large-diameter cylindrical portion 122 of the upper case 42 accommodates the base portion 102 of the rotating body 44, the movable valve body 60 and the fixed valve body 62.

  As shown in FIG. 14A, the hot water valve hole 80 has an upper surface opening line 80L. Upper surface opening line 80L is the opening shape of hot water valve hole 80 in smooth surface PL1. The water valve hole 82 has an upper surface opening line 82L. Upper surface opening line 82L is the opening shape of water valve hole 82 in smooth surface PL1. The mixed water valve hole 84 has an upper surface opening line 84L. The upper surface opening line 84L is the opening shape of the mixed water valve hole 84 in the smooth surface PL1.

  As shown in FIG. 14A, the hot water valve hole 80 is a bent long hole. The water valve hole 82 is also a bent long hole. The shapes of the hot water valve hole 80 and the water valve hole 82 are determined in consideration of the temperature adjustment and the discharge amount adjustment.

  As shown in FIG. 16C, the flow path forming recess 96 has a lower surface opening line 96L. The lower surface opening line 96L is an opening shape of the flow path forming recess 96 in the smooth surface PL2. The shape of the flow path forming recess 96 is determined in consideration of temperature adjustment and discharge amount adjustment.

  FIG. 21 is a perspective view of the upper member 86 (movable valve body 60). FIG. 21 is a perspective view as viewed obliquely from above. FIG. 22 is a plan view of the upper member 86. 23 is a cross-sectional view taken along line AA in FIG. FIG. 24A is a perspective view of the upper member 86 as viewed obliquely from below. FIG. 24B is a bottom view of the upper member 86. FIG. 24C is a side view of the upper member 86.

  The upper member 86 has a first circular recess R1 and a second circular recess R2 as circular recesses. A second circular recess R2 is provided on the bottom surface of the first circular recess R1. A second circular recess R2 is provided at the center of the first circular recess R1. The first circular recess R1 and the second circular recess R2 are arranged coaxially. Thus, in this embodiment, two circular recesses are provided. There may be one circular recess.

  The first circular recess R1 has a circular concave side surface s1. The circular concave side surface s1 includes a circumferential surface. In the cross section perpendicular to the central axis of the first circular recess R1, the circular concave side surface s1 is circular. Examples of the circular concave side surface s1 include a circumferential surface and a conical concave surface.

  The second circular recess R2 has a circular concave side surface s2. The circular concave side surface s2 includes a circumferential surface. In the cross section perpendicular to the central axis of the second circular concave portion R2, the circular concave side surface s2 is circular. Examples of the circular concave side surface s2 include a circumferential surface and a conical concave surface.

  The circular concave side surface s1 and the circular concave side surface s2 are coaxial.

  The upper member 86 (movable valve body 60) has a slide engagement recess R3. The slide engagement recess R3 is connected to the first circular recess R1. In the connection portion with the slide engagement recess R3, the circular concave side surface s1 of the first circular recess R1 is interrupted. This interrupted portion forms an opening for receiving the engagement protrusion E3. Thus, the slide engagement recess R3 has an opening for receiving the engagement protrusion E3 on the side where the circular recesses R1 and R2 are disposed.

  The slide engagement recess R3 is a slide groove. This slide groove extends straight. As shown in FIG. 22, the slide engagement recess R3 has a recessed side surface s3. The concave side surface s3 is a plane. The concave side surface s3 has a first side surface s31 and a second side surface s32. The first side surface s31 is a plane. The second side surface s32 is a plane. The first side surface s31 and the second side surface s32 face each other. The first side surface s31 and the second side surface s32 are parallel to each other.

  As shown in FIG. 22, the slide engagement recess R <b> 3 extends along the center line CL <b> 1 of the upper member 86. The center line CL1 coincides with the center line of the slide engagement recess R3. The concave side surface s3 extends along the center line CL1. The center line CL1 is located at the center between the first side surface s31 and the second side surface s32.

  The slide engagement recess R3 is engaged with the engagement protrusion E3 described above. More specifically, the contact surfaces E301 and E302 are in contact with the concave side surface s3. Regardless of the position of the lever 46, the slide engagement recess R3 is engaged with the engagement protrusion E3. This engagement imposes certain restrictions on the movement of the movable valve body 60. When the movable valve body 60 moves, the engagement protrusion E3 slides inside the slide engagement recess R3. Due to this sliding movement, the movable valve body 60 is allowed to move. Details of the movement of the movable valve body 60 will be described later.

  FIG. 25 is a perspective view of the rotary slide member 50. FIG. 25 is a perspective view as viewed obliquely from above. FIG. 26 is a plan view of the rotary slide member 50. 27 is a cross-sectional view taken along line AA in FIG. FIG. 28A is a perspective view of the rotary slide member 50 as viewed obliquely from below. FIG. 28B is a bottom view of the rotary slide member 50. FIG. 28C is a side view of the rotary slide member 50.

  The rotary slide member 50 includes the engaging convex portion 99, the main body portion 101, and the downward convex portion 103 described above. An engagement convex portion 99 is provided on the upper surface of the main body portion 101. A downward convex portion 103 is provided on the lower surface of the main body portion 101.

  The engagement convex portion 99 has a slide surface 99s. The slide surface 99s is a flat surface. Slide surfaces 99 s are provided on both sides of the engaging protrusion 99. The first slide surface 99s and the second slide surface 99s are parallel to each other.

  As shown in FIGS. 18B and 19B, the rotating body 44 has an engagement recess 140. The engaging recess 140 is provided on the lower surface of the rotating body 44. The engagement concave portion 140 is engaged with the engagement convex portion 99 of the rotary slide member 50. The engaging recess 140 serves as a slide groove. In the engagement recess 140, the engagement protrusion 99 slides.

  As described above, the engagement convex portion 99 has the slide surface 99s (see FIGS. 25 and 26). As shown in FIGS. 18B and 19B, the engaging recess 140 of the rotating body 44 has a slide surface 140s. The slide surface 140s is a flat surface. Two slide surfaces 140s facing each other are provided. The two slide surfaces 140s are parallel to each other.

  In the sliding movement of the engaging convex portion 99, the sliding surface 99s slides with respect to the sliding surface 140s. The moving direction of the movable valve body 60 is regulated by the sliding engagement between the engaging convex part 99 and the engaging concave part 140. The moving direction of the movable valve body 60 is the sliding direction in this sliding engagement. By this sliding engagement, the moving direction of the movable valve body 60 is restricted to the direction D1 (see FIG. 19B and FIG. 26). The direction D1 is parallel to the slide surface 99s. The direction D1 is parallel to the slide surface 140s.

  In this manner, the hot and cold water mixing tap 10 has a movement direction regulating mechanism that regulates the movement direction of the movable valve body 60 in the direction D1. This movement direction regulating mechanism is provided between the rotary slide member 50 and the rotating body 44. This movement direction regulating mechanism is a slide mechanism.

  This slide mechanism is also a rotation transmission mechanism that transmits the left and right rotation of the lever 46 to the rotary slide member 50. The left / right rotation of the lever 46 is first transmitted to the rotating body 44. As a result, the rotating body 44 rotates. The rotation of the rotating body 44 is transmitted to the rotating slide member 50 by the rotation transmission mechanism. As described above, the rotary slide member 50 rotates due to the left-right rotation of the lever 46.

  The main body 101 has a disk shape as a whole. As shown in FIG. 28A and the like, the main body 101 has a circular side surface m1. The circular side surface m1 has a circumferential surface. In the cross section perpendicular to the central axis of the main body 101, the circular side surface m1 is circular. Examples of the circular side surface m1 include a conical convex surface in addition to the circumferential surface.

  The downward convex part 103 is disk shape as a whole. As shown in FIG. 28A and the like, the downward convex portion 103 has a circular side surface m2. The circular side surface m2 has a circumferential surface. In the cross section perpendicular to the central axis of the downward projection 103, the circular side surface m2 is circular. As the circular side surface m2, a conical convex surface is exemplified in addition to the circumferential surface.

  The main body 101 is coaxial with the downward projection 103. The circular side surface m1 is coaxial with the circular side surface m2.

  Thus, in this embodiment, two circular side surfaces are provided. There may be one circular side surface.

  The main body 101 contributes to securing the depth of the lever engagement hole 98 together with the engagement convex portion 99. By securing this depth, the engagement between the lever engagement hole 98 and the lever lower end portion 95 is ensured. The downward projection 103 serves as a rotation shaft that supports the rotation of the rotary slide member 50. Further, the lower convex portion 103 reliably transmits the rotation (movement) of the lever lower end portion 95 to the movable valve body 60. In the present embodiment, a relative rotation A between the lower convex portion 103 and the circular concave portion R2 and a relative rotation B between the main body portion 101 and the circular concave portion R1 occur. This relative rotation B is supported by the relative rotation A of the downward projection 103. Therefore, the relative rotation between the rotary slide member 50 and the movable valve body 60 can be made even smoother. Note that the lower protrusion 103 may not be provided, and only the relative rotation B may be used. In addition, when the downward convex part 103 is provided, it becomes possible to space apart the lower surface of the downward convex part 103, and the bottom face of circular recessed part R2. By this separation, the contact area between the rotary slide member 50 and the movable valve body 60 can be suppressed, and the lever operability can be improved.

  As shown in FIG. 9, the main body 101 is fitted in the first circular recess R1. Moreover, the downward convex part 103 is engage | inserted by 2nd circular recessed part R2. As a result, the circular side surface m1 of the rotary slide member 50 is in contact with the circular concave side surface s1 of the upper member 86. This contact is a surface contact. Further, the circular side surface m <b> 2 of the rotary slide member 50 is in contact with the circular concave side surface s <b> 2 of the upper member 86. This contact is a surface contact.

  The rotary slide member 50 can rotate while being fitted in the first circular recess R1. The rotary slide member 50 can rotate while the movable valve body 60 is stationary. The central axis of rotation of the rotary slide member 50 coincides with the central axis of the circular side surface m1. The center axis of rotation of the rotary slide member 50 coincides with the center axis of the circular side surface m2. The central axis of rotation of the rotary slide member 50 coincides with the central axis of the circular concave side surface s1. The center axis of rotation of the rotary slide member 50 coincides with the center axis of the circular concave side surface s2. In the rotation of the rotary slide member 50, the circular side surface m1 slides with respect to the circular concave side surface s1. In the rotation of the rotary slide member 50, the circular side surface m2 slides with respect to the circular concave side surface s2.

  As described above, the rotary slide member 50 is interposed between the rotating body 44 and the movable valve body 60. Due to the presence of the rotating slide member 50, the movable valve body 60 does not rotate integrally with the rotating body 44. On the other hand, the rotary slide member 50 can freely rotate. That is, the rotary slide member 50 can freely rotate relative to the movable valve body 60.

  Hereinafter, the movement of the movable valve body 60 will be described in detail. As described above, the rotary slide member 50 is engaged with the rotating body 44 in a slidable state. The rotary slide member 50 is engaged with the movable valve body 60 in a rotatable state. The lever lower end portion 95 is engaged with the rotary slide member 50. Thus, there are multiple engagements.

  These engagements will be described in more detail. The movable valve body 60 has the following engagement A and engagement B. These engagements are involved in the movement of the movable valve body 60.

[Two engagements of movable valve body 60]
[Engagement A]: engagement with the lever lower end portion 95 via the rotary slide member 50 [Engagement B]: engagement between the slide engagement recess R3 and the engagement protrusion E3

  The engagement A is an engagement in a state where relative rotation is possible. The engagement B is an engagement in a state where sliding is possible. The combination of the engagement A and the engagement B defines the movement of the movable valve body 60.

  The driving force of the rotary slide member 50 is transmitted to the rotary slide member 50 via the next engagement C and engagement D.

[Two engagements for moving the rotary slide member 50]
[Engage C]: engagement between the lower end portion 95 of the lever 46 and the lever engagement hole 98 of the rotary slide member 50 [engage D]: the engagement recess 140 of the rotating body 44 and the rotary slide member 50 Engagement with the engaging projection 99

  The engagement C transmits the movement of the lever lower end portion 95 to the rotary slide member 50. In the present embodiment, the lever engaging hole 98 is a long hole. In FIG. 26, what is indicated by a double-headed arrow D3 is the longitudinal direction of the long hole. In the engagement C, the lever lower end portion 95 is allowed to move along the direction D3 in the lever engagement hole 98.

  As described above, in the engagement D, relative movement (sliding) in the direction D1 is possible. The engagement D transmits the rotation of the rotating body 44 to the rotary slide member 50.

  For convenience of explanation, the rotation axis of the rotating body 44 is Z1, and the rotation axis of the rotary slide member 50 is Z2. By rotating the lever 46 back and forth, the rotary slide member 50 moves along the direction D1. That is, the rotation axis Z2 moves. On the other hand, the rotation axis Z1 does not move. Therefore, the relative positional relationship between the rotation axis Z1 and the rotation axis Z2 can vary.

  When the rotation axis Z1 and the rotation axis Z2 coincide, the rotation of the rotating body 44 causes only the rotation of the rotation slide member 50. In this case, the rotation slide member 50 does not move due to the rotation of the rotating body 44.

  When the rotation axis Z 1 and the rotation axis Z 2 do not coincide with each other, the rotation of the rotating body 44 causes the rotation slide member 50 to move together with the rotation of the rotation slide member 50. In this case, the rotation axis Z2 moves along a circle around the rotation axis Z1. Naturally, the movement of the rotation axis Z2 means the movement of the rotary slide member 50. The rotary slide member 50 moves along a circle around the rotation axis Z1. The moving distance of the rotary slide member 50 with respect to the rotation of the rotating body 44 at a certain angle depends on the distance D12 between the rotation axis Z1 and the rotation axis Z2. The greater the distance D12, the greater the travel distance.

  The rotary slide member 50 can freely rotate relative to the movable valve body 60. However, relative movement between the rotary slide member 50 and the movable valve body 60 is impossible. As the rotary slide member 50 moves, the movable valve body 60 also moves. At the same time, the movable valve body 60 is restrained by the engagement B. Based on the combination of the engagement B and the position of the rotary slide member 50, the movable valve body 60 can move and rotate. Due to the engagement B, the center of rotation of the movable valve body 60 is located at the engagement protrusion E3. More specifically, the center of rotation of the movable valve body 60 is located at the expansion portion E30. Thus, the movable valve body 60 can be moved and rotated by being restrained by the position of the rotary slide member 50 and the engagement B.

  For convenience of explanation, the rotation angle of the movable valve body 60 when the lever 46 is rotated left and right by a certain angle is Ax.

  In the present embodiment, the rotation angle Ax depends on the lever front-rear position. In other words, in the present embodiment, the rotation angle Ax depends on the discharge amount. A distance D12 (not shown) between the rotation axis Z1 and the rotation axis Z2 changes due to the front-rear position of the lever 46. In the present embodiment, the distance D12 is larger as the front-rear position of the lever 46 is on the discharge side. That is, the greater the discharge amount, the greater the distance D12. The greater the distance D12, the easier it is for the movable valve body 60 to be swung from side to side with the engagement protrusion E3 as the center. The rotation angle Ax of the movable valve body 60 tends to increase as the distance D12 increases.

  As an example of the angle Ax, the rotation angle A1 and the rotation angle A2 are increased. In the present application, the angle A1 and the angle A2 are considered.

[Angle A1]
In the water stop state, the rotation angle of the movable valve body when the lever 46 is rotated left and right in the entire range is defined as A1.

[Angle A2]
In the maximum discharge state, the rotation angle of the movable valve body when the lever 46 is rotated left and right in the entire range is defined as A2.

  In the water stop state, the rotation axis Z1 and the rotation axis Z2 are very close. That is, the position of the rotary slide member 50 in the water stop state is a position where the rotation axis Z2 is very close to the rotation axis Z1. For this reason, in the water stop state, the movement distance D12 accompanying the left-right rotation is small. As a result, the angle A1 is small in the water stop state. In the water stop state, the rotation axis Z1 and the rotation axis Z2 can be matched. In this case, the angle A1 can be zero.

  In the maximum discharge state, the rotation axis Z1 and the rotation axis Z2 are separated. For this reason, in the maximum discharge state, the said moving distance D12 accompanying a left-right rotation is large. As a result, the angle A1 is large in the maximum discharge state.

  In the present embodiment, the angle A2 is larger than the angle A1. The effect of this angle difference will be described later.

  FIG. 29 is a plan view and a cross-sectional view of the valve assembly 40 in a water stop state. In FIG. 29, a total of 16 drawings are arranged in a matrix.

  In the first column of FIG. 29, there are FIGS. A1, b1, c1 and d1. These are views when the lever front-rear position is at the water stop position and the lever left-right position is at the hot water side limit position (left limit ML). FIG. A1 is a plan view, FIG. B1 is a cross-sectional view taken along line BB in FIG. 8, FIG. C1 is a cross-sectional view taken along line CC in FIG. 8, and FIG. It is sectional drawing along the DD line.

  In the second column of FIG. 29, there are diagrams a2, b2, c2 and d2. These are views when the lever front-rear position is at the water stop position and the lever left-right position is at the front position S1. FIG. A2 is a plan view, FIG. B2 is a cross-sectional view taken along line BB in FIG. 8, FIG. C2 is a cross-sectional view taken along line CC in FIG. 8, and FIG. It is sectional drawing along the DD line.

  In the third column of FIG. 29, there are FIGS. A3, b3, c3 and d3. These are views when the lever front-rear position is at the water stop position and the lever left-right position is at the water-side limit position (right limit MR). FIG. A3 is a plan view, FIG. B3 is a cross-sectional view taken along line BB in FIG. 8, FIG. C3 is a cross-sectional view taken along line CC in FIG. 8, and FIG. It is sectional drawing along the DD line.

  FIG. 30 is a plan view and a cross-sectional view of the valve assembly 40 in a discharge state. In FIG. 30, a total of 16 drawings are arranged in a matrix.

  In the first row of FIG. 30, there are drawings a4, b4, c4 and d4. These are diagrams when the lever front-rear position is at the discharge position and the lever left-right position is at the hot water side limit position (left limit ML). FIG. A4 is a plan view, FIG. B4 is a cross-sectional view taken along line BB in FIG. 8, FIG. C4 is a cross-sectional view taken along line CC in FIG. 8, and FIG. It is sectional drawing along the DD line.

  In the second column of FIG. 30, there are drawings a5, b5, c5 and d5. These are views when the lever front-rear position is at the discharge position and the lever left-right position is at the front position S1. Fig. A5 is a plan view, Fig. B5 is a cross-sectional view taken along line BB in Fig. 8, Fig. C5 is a cross-sectional view taken along line CC in Fig. 8, and Fig. D5 is shown in Fig. 8. It is sectional drawing along the DD line.

  In the third column of FIG. 30, there are FIGS. A6, b6, c6 and d6. These are diagrams when the lever front-rear position is at the discharge position and the lever left-right position is at the water side limit position (right limit MR). Fig. A6 is a plan view, Fig. B6 is a cross-sectional view taken along line BB in Fig. 8, Fig. C6 is a cross-sectional view taken along line CC in Fig. 8, and Fig. D6 is shown in Fig. 8. It is sectional drawing along the DD line.

  Note that in FIG. 29 and FIG. 30, detailed reference numerals are omitted. For the reference numerals of the respective members, refer to the aforementioned FIG. 10, FIG. 11 and FIG.

  As shown in FIGS. C1 and c3 in FIG. 29, even when the lever 46 is rotated from the left limit ML to the right limit MR, the upper member 86 (movable valve body 60) hardly rotates. The angle A1 in the still water state is small.

  On the other hand, as shown in FIGS. C4 and c6 in FIG. 30, when the lever 46 is rotated from the left limit ML to the right limit MR, the upper member 86 (movable valve body 60) rotates greatly. The angle Ax in the discharge state is large. The angle A2 in the maximum discharge state is large.

  As described above, in any aspect, the engagement (the engagement B) between the engagement protrusion E3 and the slide engagement recess R3 is maintained. This point is shown in b1 to b3 and c1 to c3 in FIG. 29 and b4 to b6 and c4 to c6 in FIG. Due to the engagement B, the rotation center of the movable valve body 60 is located at the engagement protrusion E3.

  The engagement B is maintained regardless of the left / right position and the front / rear position of the lever 46. This engagement B is a contact between the concave side surface s3 (see FIG. 22) and the extended portion E30 (see FIG. 17 (e)). Regardless of the left-right position and the front-rear position of the lever 46, the extending portion E32 does not contact the concave side surface s3. Regardless of the left-right position and front-rear position of the lever 46, the extending portion E <b> 32 does not interfere with the upper member 86. The extending part E32 does not inhibit the engagement B. Therefore, the rotation of the movable valve body 60 is smooth.

  More specifically, the engagement B is a contact between the first contact surface E301 and the first side surface s31, and a contact between the second contact surface E302 and the second side surface s32. The first contact surface E301 is a convex curved surface (see the enlarged portion in FIG. 17E). For this reason, even if the direction of the movable valve body 60 changes, the contact between the contact surface E301 and the first side surface s31 is easily maintained. The second contact surface E302 is a convex curved surface (see the enlarged portion in FIG. 17E). For this reason, even if the direction of the movable valve body 60 changes, the contact between the contact surface E302 and the second side surface s32 is easily maintained.

  In the enlarged portion of FIG. 17E, the center line CL2 of the engagement protrusion E3 is shown. When the lever left-right position is at the front position S1 and the lever front-rear position is at the water stop position, the center line CL2 coincides with the center line CL1 of the upper member 86 (see FIG. 22). Please refer to FIG. The state where the center line CL1 and the center line CL2 coincide with each other is also shown by b2 and c2 in FIG. As shown in b1 and c1 of FIG. 29, in the water stop state and the left limit ML, the angular difference between the center line CL1 and the center line CL2 is very small. Similarly, as shown in b3 and c3 of FIG. 29, the angle difference between the center line CL1 and the center line CL2 is very small in the water stop state and the right limit MR. As is clear from these drawings, in the present embodiment, the angle A1 is very small. In the present embodiment, the angle A1 is 0.7 degrees and is close to 0 degrees.

  On the other hand, in b4, c4, b5, c5, b6, and c6 in FIG. 30, the center line CL1 of the movable valve body 60 is clearly inclined with respect to the center line CL2 of the slide engagement recess R3. As can be understood from these drawings, the movable valve body 60 rotates greatly. In the present embodiment, the angle A2 is 31.5 degrees, which is larger than the angle A1.

  As will be described later, the moving direction D1 of the movable valve body 60 is inclined with respect to the front-rear rotation direction D2 of the lever 46. Therefore, the movable valve body oblique movement is achieved. When the lever 46 is rotated back and forth while the left and right positions of the lever 46 are fixed, the engagement B and the oblique movement of the movable valve body occur simultaneously. For this reason, the movable valve body 60 rotates simultaneously with the movement of the movable valve body 60. The rotation of the movable valve body 60 is apparent from, for example, a comparison between the sectional view c1 in FIG. 29 and the sectional view c4 in FIG. The rotation of the movable valve body 60 is also apparent from a comparison between the sectional view c2 in FIG. 29 and the sectional view c5 in FIG. The rotation of the movable valve body 60 is apparent from a comparison between the sectional view c3 in FIG. 29 and the sectional view c6 in FIG. Thus, when the lever 46 is rotated back and forth while the left and right positions of the lever 46 are fixed, the movable valve body 60 rotates while moving.

  For convenience of explanation, the rotation of the movable valve body 60 when the left and right positions of the lever 46 are fixed is referred to as rotation Rx, and the movement of the movable valve body 60 when the left and right positions of the lever 46 are fixed is referred to as movement Mx. .

  When the lever left-right position is at the front position S1, the rotation Rx is rotation toward the water side. This rotation to the water side is counterclockwise in the cross-sectional views of FIGS. 29 and 30. In this way, when the lever 46 is rotated back and forth to the discharge side while the lever 46 is at the front position S1, the movable valve body 60 rotates to the water side. The same phenomenon occurs when the left and right positions of the lever 46 are on the water side of the front position S1. That is, when the lever 46 is rotated back and forth to the discharge side while the left and right positions of the lever 46 are fixed to any position on the water side relative to the front position S1, the movable valve body 60 rotates to the water side.

  The rotation Rx suppresses the use of hot water and increases the energy saving effect. Furthermore, the front Ryu specification can be more reliably achieved by this rotation Rx. By the movable valve body oblique movement and the rotation Rx to the water side, it is possible to further reliably achieve the front hot water saving specification. The front hot water saving specification means that when the lever 46 is in the front position S1, only water is discharged and hot water is not mixed.

  Even when the lever left-right position is on the water side (right side) with respect to the front position S1, the rotation Rx is a rotation toward the water side. Therefore, the energy saving effect is enhanced.

  The rotation of the movable valve body 60 interlocked with the rotation of the rotating body 44 is referred to as rotation Ry. The rotation of the movable valve body 60 can be classified into the rotation Rx and the rotation Ry.

  The temperature can be adjusted by the rotation of the movable valve body 60. The temperature adjustment is achieved mainly by the rotation Ry interlocked with the left / right position of the lever 46. In the present embodiment, in addition to the rotation Ry, the rotation Rx occurs.

  The said engagement B is arrange | positioned at the water stop side in the front-back rotation direction D2 of a lever. The engagement B is at a position where the movable valve body 60 is allowed to rotate. The engagement protrusion E3 and the slide engagement recess R3 are disposed at a position where the temperature can be adjusted by rotating the movable valve body 60 around the engagement protrusion E3.

  As described above, the rotating body 44 and the movable valve body 60 are not directly engaged. For this reason, if the engagement B does not exist, accurate control of the movable valve body 60 may be difficult. Due to the engagement B, the rotational center of the movable valve body 60 is limited to the engagement protrusion E3. Further, due to the engagement B, the movement of the engagement protrusion E3 is limited to the direction along the slide engagement recess R3. Therefore, the movement of the movable valve body 60 is accurately controlled. Further, since the engagement B allows sliding, the movable valve body 60 is allowed to move. Therefore, the discharge amount can be adjusted. The engagement B allows the angle Ax to depend on the lever front-rear position while allowing the temperature and discharge amount to be adjusted by the movable valve body 60.

10 and 26 show a direction D1, a direction D2, and a direction D3. The meaning of this is as follows.
-Direction D1: Movement direction of movable valve body 60-Direction D2: Front-rear rotation direction of lever 46-Direction D3: Longitudinal direction of lever engagement hole 98 These directions D1, D2, and D3 are all viewed from above. This is the direction in plan view.

  As described above, the moving direction of the movable valve body 60 is restricted by the direction D1. This direction D1 is a direction along a straight line. This direction D1 is inclined with respect to the direction D2. That is, the movable valve body is moved obliquely.

  As described above, the lever lower end portion 95 can move inside the lever engagement hole 98. This movement is made possible by the elongated hole shape of the lever engaging hole 98. Thus, the lever engagement hole 98 allows the movable valve body to move obliquely by allowing the lever lower end portion 95 to move. When the lever 46 is rotated back and forth, the lever lower end portion 95 moves along the direction D2, the movable valve body 60 moves along the direction D1, and the lever lower end portion 95 moves in the lever engagement hole 98 in the direction D3. Move along.

  The direction D1 inclined with respect to the direction D2 increases the degree of freedom of movement of the movable valve body 60. Further, the inclined direction D1 increases the degree of freedom of the discharge specification. For example, even if the hot water valve hole 80 and the water valve hole 82 of the fixed valve body 62 are symmetric positions as in the prior art, the front hot water saving specification is possible.

  In FIG. 14A, the one-dot chain line indicates the center line CL3 of the fixed valve body 62. The upper opening line of the fixed valve body 62 is symmetrical. The upper surface opening line 80L and the upper surface opening line 82L are in a line-symmetric relationship with the center line CL3 as the axis of symmetry. In the present embodiment, the front hot water saving specifications are realized in such a symmetrical hot water valve hole 80 and water valve hole 82.

  In FIG. 10, what is indicated by a double arrow θx is an inclination angle of the direction D1 with respect to the direction D2. In the conventional hot and cold water mixing tap, the angle θx was 0 °. On the other hand, in the hot and cold water mixing tap 10, the angle θx is not 0 °.

  The angle θx is preferably 5 degrees or more, more preferably 10 degrees or more, and particularly preferably 20 degrees or more from the viewpoint of realizing front hot water specifications or increasing the design flexibility of each valve hole. From the viewpoint of facilitating the forward and backward rotation operation of the lever 46, the angle θx is preferably 45 degrees or less, more preferably 40 degrees or less, and particularly preferably 35 degrees or less. In the present embodiment, the angle θx is 30 degrees.

[Rotation angles A1, A2 of the movable valve body]
As described above, in the above embodiment, the angle A2 is larger than the angle A1. Since the angle A1 is suppressed, there is little sliding between the movable valve body 60 and the fixed valve body 62 at the time of water stoppage. Therefore, wear of the movable valve body 60 and the fixed valve body 62 is suppressed, and durability can be improved. Further, the operation of the lever 46 at the time of water stoppage becomes light, and the operability can be improved.

  From the viewpoint of durability and operability at the time of water stopping, the rotation angle A1 is preferably small. The rotation angle A1 is preferably 5 degrees or less, more preferably 3 degrees or less, and more preferably 1 degree or less. Of course, the angle A1 may be 0 degrees. In the said embodiment, the said rotation angle A1 was 0.7 degree | times.

  The rotation angle A2 is preferably 20 degrees or more, more preferably 25 degrees or more, and more preferably 30 degrees or more from the viewpoint of increasing the rotation range in which the mixing ratio of hot water and water can be adjusted to facilitate temperature adjustment. Is more preferable. When the rotation range in which the temperature can be adjusted is excessive, the operability can be lowered. In this respect, the rotation angle A2 is preferably 40 degrees or less, and more preferably 35 degrees or less. In the said embodiment, the said rotation angle A2 was 31.5 degree | times.

  When the difference (A2-A1) is excessive, the rotation angle A2 tends to be excessive. In this respect, the difference (A2-A1) is preferably equal to or less than 40 degrees, and more preferably equal to or less than 35 degrees. From the viewpoint of setting the angles A2 and A1 to preferable values, the difference (A2-A1) is preferably 20 degrees or more, more preferably 25 degrees or more, and more preferably 30 degrees or more.

  From the viewpoint of improving wear resistance and operability, the circular side surface m2 is preferably wide. In this respect, the outer diameter of the downward convex portion 103 is preferably 5 mm or more, more preferably 5.5 mm or more, and more preferably 6 mm or more. From the viewpoint of miniaturization of the faucet, the outer diameter of the downward projection 103 is preferably 12 mm or less, and more preferably 11 mm or less. In the above embodiment, the outer diameter is 9 mm.

  The inner diameter of the circular recess R2 is preferably the same as the outer diameter of the lower protrusion 103. From the viewpoint of improving wear resistance and operability, the inner diameter of the circular recess R2 is preferably 5 mm or more, more preferably 5.5 mm or more, and more preferably 6 mm or more. From the viewpoint of miniaturization of the faucet, the inner diameter of the circular recess R2 is preferably 12 mm or less, and more preferably 11 mm or less. In the above embodiment, the inner diameter is 9 mm.

  In FIG. 28C, a double arrow H indicates the height of the circular side surface (circular side surface m1, circular side surface m2). From the viewpoint of improvement in wear resistance and certainty of contact with the circular concave side surface s1, the height H is preferably 1 mm or more, more preferably 1.2 mm or more, and more preferably 1.5 mm or more. From the viewpoint of miniaturization of the faucet, the height H is preferably 3.5 mm or less, more preferably 3.0 mm or less, and even more preferably 2.8 mm or less. In the above embodiment, the height H2 of the circular side surface m2 is 1.6 mm, and the height H1 of the circular side surface m1 is 2.5 mm.

  From the viewpoint of improvement in wear resistance and certainty of contact with the circular concave side surface, it is preferable to consider the total height (H1 + H2) of the height H1 and the height H2. From these viewpoints, the height (H1 + H2) is preferably 2.0 mm or more, more preferably 3.0 mm or more, and more preferably 3.5 mm or more. From the viewpoint of miniaturization of the faucet, the total height (H1 + H2) is preferably 6.0 mm or less, more preferably 5.0 mm or less, and even more preferably 4.5 mm or less.

  In FIG. 23, a double arrow F indicates the depth of the circular concave side surface (circular concave side surface s1, circular concave side surface s2). From the viewpoint of improvement in wear resistance and certainty of holding the circular side surface, the depth F is preferably 1 mm or more, more preferably 1.2 mm or more, and more preferably 1.5 mm or more. From the viewpoint of miniaturization of the faucet, the depth F is preferably 4.0 mm or less, more preferably 3.5 mm or less, more preferably 3.0 mm or less, and even more preferably 2.8 mm or less. In the above embodiment, the depth F2 of the circular concave side surface s2 is 1.8 mm, and the depth F1 of the circular concave side surface s1 is 2.5 mm.

  The difference (F2−H2) between the depth F2 and the height H2 may be 0 mm. From the viewpoint of suppressing the contact area between the bottom surface of the lower convex portion 103 and the circular concave portion R2 and improving operability, the difference (F2-H2) is preferably 0.05 mm or more, more preferably 0.1 mm or more, 0.15 mm or more is more preferable. From the viewpoint of making the height H2 and the depth F2 preferable values, the difference (F2−H2) is preferably equal to or less than 0.5 mm, and more preferably equal to or less than 0.3 mm.

  The maximum transverse length of the movable valve body 60 can be 20 mm or more and 28 mm or less. Considering the adjustability of temperature and flow rate, the maximum transverse length is preferably 20 mm or more, more preferably 22 mm or more, and more preferably 24 mm or more. From the viewpoint of miniaturization of the valve body unit, the maximum transverse length is preferably 28 mm or less, more preferably 27 mm or less, and more preferably 26 mm or less. In determining the maximum transverse length of the movable valve body 60, the contour line of the movable valve body in plan view is taken into consideration. The maximum value of the length of the line segment connecting two points on the contour line is the maximum transverse length.

  FIG. 31 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 full range of left and right pivoting of the handle 14 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 left-right rotation full range RF of the handle 14 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 °. Note that the full range RF of the left-right rotation of the handle 14 may be symmetrical 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 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 circumferential position of the handle 14 is at the front position S1, hot water is not mixed. That is, when the circumferential position of the handle 14 is at the front position S1, the ratio of water is 100%. Frontal hot spring specifications have been achieved.

  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.

  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. 31, reference numeral K1 indicates a boundary between a range where hot water can be discharged and a range where only water can be discharged. This boundary K1 is determined in the maximum discharge state. 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. 31, what is indicated by an angle θk is a 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.

  In the above embodiment, the rotary slide member 50 has a circular side surface. However, it is natural that the movable valve body 60 may have a circular side surface. In the said embodiment, although the movable valve body 60 had the circular concave side surface, it is natural that the rotation slide member 50 may have a circular concave side surface.

  In the above embodiment, the movable valve body 60 (upper member 86) has the slide engagement recess, but it is natural that the upper case 42 may have the slide engagement recess. In the above embodiment, the upper case 42 has the engaging protrusion, but the movable valve body 60 may naturally have the engaging protrusion.

  In the present application, other inventions different from the invention according to the independent claims are also described. 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 ... Valve Assembly 42 ... Upper case 44 ... Rotating body 46 ... Lever 48 ... Lever shaft 50 ... Rotating slide member 60 ... Movable valve body 62 ... Fixed valve body 64 ... Packing 68 ... Lower case 80 ... Hot water valve hole 80L ... Upper surface opening line of hot water valve hole 82 ... Water valve hole 82L ... Upper surface opening line of water valve hole 84 ... -Mixed water valve hole 84L-Upper surface opening line of mixed water valve hole 86-Upper member of movable valve body 88-Lower member of movable valve body 95-Lower end portion of lever 96- ..Flow path forming recess 98 ... Lever engagement hole E3 ... engagement projection E30 ... expansion part of engagement projection 1 ... circular recess (first circular recess)
R2 ... Circular recess (second circular recess)
R3 ... Slide engaging recess s1, s2 ... Circular concave side surface m1, m2 ... Circular side surface D1 ... Movement direction of movable valve element D2 ... Forward / backward rotation direction of lever D3 ... Lever Longitudinal direction of engagement hole

Claims (5)

A fixed valve body having a hot water valve hole, a water valve hole and a discharge valve hole;
A movable valve body that is slidably disposed on the upper surface of the fixed valve body, and has a flow path forming recess and a lever engagement hole;
A lever that can turn left and right and back and forth; and
A rotating body that supports the lever so that the front-rear rotation is possible and rotates in conjunction with the left-right rotation of the lever;
A rotating slide member disposed between the rotating body and the movable valve body;
With
The rotating slide member is engaged with the rotating body in a slidable state,
The rotating slide member is engaged with the movable valve body in a rotatable state,
The lower end portion of the lever is engaged with the rotary slide member, and by this engagement, the movement of the lower end portion of the lever is transmitted to the movable valve body via the rotary slide member,
Due to the left-right rotation of the lever, the movable valve body can rotate with respect to the fixed valve body, and the rotation of the movable valve body enables adjustment of the hot and cold water mixing ratio.
By moving the lever back and forth, the movable valve body can move with respect to the fixed valve body, and the discharge amount can be adjusted by this movement.
In the water stop state, the rotation angle of the movable valve body when the lever is rotated left and right in the entire range is A1,
In the maximum discharge state, when the rotation angle of the movable valve body when the lever is rotated left and right in the entire range is A2,
A hot and cold water mixing tap in which the angle A2 is larger than the angle A1. By moving the lever back and forth, the movable valve body moves in the direction D1,
The lever front-rear rotation direction D2 is inclined with respect to the direction D1,
The hot and cold water mixing tap according to claim 1, wherein only water is discharged when the lever is in a front position. A circular side surface is provided on one of the movable valve body or the rotating slide member,
A circular concave side surface is provided on the other of the movable valve body or the rotary slide member,
The hot and cold water mixing plug according to claim 1 or 2, wherein the circular side surface and the circular concave side surface are in surface contact. An upper case for accommodating the movable valve body is further provided,
A slide engagement recess is provided on one of the inner surface of the upper case or the movable valve body,
An engagement protrusion is provided on the inner surface of the upper case or the other of the movable valve body,
The engagement protrusion is engaged with the slide engagement recess,
As the lever pivots back and forth, the engagement protrusion moves inside the slide engagement recess,
4. The hot and cold water mixing according to claim 1, wherein the movable valve body rotates while maintaining the engagement between the engagement protrusion and the slide engagement recess as the lever rotates left and right. 5. plug.   The hot and cold water mixing tap according to any one of claims 1 to 4, wherein when the lever is rotated back and forth to the discharge side while the lever is kept in the front position, the movable member rotates to the water side.

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