JP2012002346A - Mixing faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixing faucet capable of preventing wasteful use of hot water by discharging only cold water with an operation lever set at a front position.SOLUTION: The mixing faucet has a fixed valve, a movable valve slidably superposed and arranged on the fixed valve, and a lever handle for operating the movable valve, a hot water discharge quantity from an opening and temperatures of the discharged hot water can be adjusted by vertically turning the lever handle and by horizontally turning the lever handle, respectively, the faucet has a resistant member providing resisting feeling to the temperature adjusting operation, the opening of the movable valve communicates with only the water flowing in valve hole of the fixed valve when carrying out the opening operation of the lever handle by the vertical turning with the lever handle positioned at the center of the horizontal turning range, the resistant member generates strong resistant feeling when turning the lever handle from the state where the lever handle is located at the center of the horizontal turning range to the high temperature side in the temperature adjusting operation.

Description

  The present invention relates to a hot and cold water mixing tap disposed in a kitchen sink, bathroom, or washstand, and more particularly hot water capable of adjusting the discharge amount of hot water and adjusting the temperature by turning the handle up and down and turning left and right. It relates to a mixing stopper.

  As shown in FIG. 7, a conventionally known hot and cold water mixing tap has a click feeling when the operation lever 711 is moved to the front position so that the user can easily recognize that the operation lever 711 is in the front position. Furthermore, a water valve inlet 712c and a hot water valve inlet 712h are arranged so that only water is discharged when the operation lever 711 is in the front position, and only the water valve inlet 712c is in the front position. Communicates with the spout.

JP 2008-89046 A

  However, in the hot and cold water mixing tap described above, the operation lever 711 at the front position has a large movable range toward the hot water side and a small movable range toward the water side. When the mixed water tap having such a configuration is used, there is a deviation between the center position of the movable range and the position where the click feeling is felt, and it is difficult for the user to understand the standard that the hot water is switched at the position where the click feeling is felt. Therefore, when the user ignores the click position and uses the water faucet, there is a risk that the operation lever 711 is positioned in a range close to the center position of the movable range, that is, the hot water discharge range, and the hot water is wasted. there were.

  The problem to be solved by the present invention is to provide a hot and cold water mixing tap that can prevent wasteful use of hot water.

The hot and cold water mixing valve of the present invention includes a fixed valve body having a hot water inflow valve hole and a water inflow valve hole, and a superposed and slidable arrangement on the fixed valve body, and the hot water and the water from the hot water inflow valve hole. A movable valve body in which an opening through which water from the inflow valve hole flows is formed, and a lever handle for operating the movable valve body, and the amount of hot water discharged from the opening is increased by the vertical rotation of the lever handle. The lever is adjustable, the temperature of the hot water discharged from the opening is adjustable by turning the lever handle to the left and right, and has a resistance member that gives resistance to the temperature adjustment operation by the lever handle, and the lever When the lever handle is opened by the up-and-down rotation in a state where the handle is positioned at the center of the left-right rotation range, the opening of the movable valve body communicates only with the water inflow valve hole of the fixed valve body. Hot water mixed faucet ,
The resistance member generates a strong resistance when the lever handle is rotated to a high temperature side in the temperature adjustment operation from a state where the lever handle is located at the center of the left-right rotation range.

  With such a configuration, the user can easily recognize the relationship between the center of the left and right movable range and the resistance feeling, and therefore there is a resistance feeling stronger than the resistance feeling at other positions in the left and right rotation range. The possibility of stopping the lever handle at the position, that is, the position where only water is discharged is increased, and wasteful use of hot water can be prevented.

  Furthermore, the hot and cold water mixing faucet according to the present invention has the above-described configuration, wherein the resistance member includes a ball that moves in accordance with a left-right rotation of the lever handle, a guide rail that guides the ball slidably, and the guide A mountain-shaped resistance portion provided on a rail and having a pair of slopes, and the resistance portion includes a guide rail between the slope and the other slope. It is characterized by having parallel parallel parts.

  With such a configuration, even when the resistance member wears due to repeated use and the shape of the mountain-shaped portion changes, the parallel member wears from the end of the parallel portion. It is easy to remain. Therefore, even when there is repeated use, switching between water and hot water can be made clearer, and wasteful use of hot water can be prevented.

  Furthermore, the hot and cold water mixing faucet of the present invention is characterized in that, in addition to the above configuration, the resistance portion has a step from the parallel portion to the slope between the slope and the parallel portion.

  With such a configuration, when descending the step, the ball falls from the parallel portion toward the slope, and hits and generates a clicking sound. As a result, the user can be notified that the hot and cold water has been switched, and therefore, wasteful use of hot water can be prevented.

  Furthermore, the hot and cold water mixing faucet of the present invention is characterized in that, in addition to the above configuration, the resistance portion has a curved surface that is recessed from the end of the parallel portion to the guide rail.

  With such a configuration, when getting over a curved surface, it is possible to feel a stronger sense of resistance, and to make the change of hot water and water stronger. Further, when the hot and cold water is switched, the ball falls from the parallel part toward the slope and hits to generate a clicking sound. As a result, the user can be notified that the hot and cold water has been switched, and therefore, wasteful use of hot water can be prevented.

  Furthermore, the hot and cold water mixing faucet according to the present invention is characterized in that, in addition to the above configuration, the resistance portion has a concave portion recessed toward the guide rail between end portions of the parallel portion.

  With such a configuration, even if the lever handle is rotated in any direction, the switching of hot water can be reliably transmitted to the user with two feelings of resistance and click sound. Can reduce wasteful use.

  Furthermore, the hot and cold water mixing faucet of the present invention has the above-described configuration, and when the lever handle is opened in a state where the opening of the movable valve body is located at the center of the left-right rotation range, And is formed in an asymmetrical shape so that the opening and the water inflow valve hole overlap each other.

  With such a configuration, there is a probability that hot water is mixed and discharged when the user unconsciously rotates the lever handle up and down, that is, when the lever handle is opened in any position in the left-right rotation range of the lever handle. Since it is small and the probability that only water is discharged increases, wasteful use of hot water that is not intended by the user can be prevented.

  Furthermore, the hot and cold water mixing faucet of the present invention has the above-described configuration, and the recess is disposed at the center position of the left-right rotation range, and the left-right rotation range is centered on either side of the left-right rotation range. Even if it exists, the mixing amount of hot water increases as the rotation amount increases.

  With such a configuration, the central position of the movable range of the lever handle is the only position that discharges only water, and by causing rotation from any direction, a feeling of resistance and clicking sound are generated at the central position, It is possible to make the user strongly aware of the position for discharging only water, and to prevent wasteful use of hot water.

  In addition to the above configuration, the hot and cold water faucet of the present invention moves to the high temperature side between the case where the resistance member is rotated to the high temperature side and the case where the resistance member is rotated to the low temperature side by the temperature adjustment operation. It is characterized in that a strong sense of resistance is produced only when it is applied.

  With such a configuration, it is possible to give a strong resistance only when switching from hot water to water, so that the switch from hot water to water can be made more conscious and prevent wasteful use of hot water. it can.

  According to the present invention, it is possible to provide a hot and cold water mixing tap that can prevent wasteful use of hot water.

It is a vertical sectional view showing a hot and cold water mixing tap according to an embodiment of the present invention. FIG. 2 is a partially omitted plan view of the hot and cold water mixing tap shown in FIG. 1 viewed from above. FIG. 2 is a vertical sectional view of an on-off valve unit that constitutes the hot and cold water mixing tap shown in FIG. 1. It is a disassembled perspective view of the on-off valve unit shown in FIG. It is an expansion perspective view of the movable valve body and fixed valve body which are shown in FIG. It is a schematic diagram which shows the opening / closing mechanism by the movable valve body and fixed valve body which are shown in FIG. It is a top view which shows the conventional hot-water mixing stopper. The principal part schematic diagram of the resistance member which concerns on 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on the 1st modification of 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on the 2nd deformation | transformation of 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on the 3rd modification of 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on the 4th modification of 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on the 5th modification of 1st Embodiment of this invention. The principal part schematic diagram of the resistance member which concerns on 2nd Embodiment of this invention. State diagram of movable valve body and fixed valve body according to second embodiment of the present invention

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the hot and cold water mixing tap 1 of the present embodiment has a water discharge pipe 2 that can turn left and right on a main body portion 8 fixed to the installation surface (the direction in which the water discharge pipe extends in FIG. The lever handle 7 is attached to the upper end of the main body 8 and can be turned left and right and turned up and down (in the axial direction of the main body 8, the lever from the main body 8 to the lever) A direction toward the handle 7 is set to the upper side and a direction from the lever handle 7 to the main body 8 is set to the lower), and a water supply pipe 4 and a hot water supply pipe (not shown) are connected to the bottom surface of the main body 8. The amount of water and hot water discharged from the water outlet 3 of the water discharge pipe 2 is adjusted by rotating the lever handle 7 up and down, and the water discharged from the water outlet 3 by rotating the lever handle 7 left and right. Adjust the temperature.

  As shown in FIG. 2, when the lever handle 7 is in a rotation range (water region W) of about 50 degrees to the right and about 5 degrees to the left around the center position C, water is discharged from the water outlet 3. When the lever handle 7 is located in a rotation range (mixing region M) of about 35 degrees to the left from the water region W, hot and cold mixed water is discharged from the water outlet 3 and about 10 to the left from the mixing region M. When the lever handle 7 is located in the rotation range (hot water region H), hot water is discharged from the water outlet 3. That is, the center position C is also the center of the left / right rotation range of the lever handle 7, and the center position C here corresponds to the front position of the lever handle 7 in the installed state. However, it is not necessary that the center position C and the front position completely coincide with each other, and if it can be installed in a rough state, it is easy to use. Further, in this embodiment, the center position C is located at the center of the adjustment of the left / right rotation range of the lever handle 7, but it is not necessary to be completely located at the center. Play.

  An on-off valve unit 9 as shown in FIG. 3 is accommodated in the main body 8 of the hot-water mixing tap 1. FIG. 3A shows a time when the on-off valve unit 9 is in a closed state, and FIG. 3B shows a time when the on-off valve unit 9 is in an open state. When the lever handle 7 (see FIG. 1) is turned up and down, the operation lever 13 of the on-off valve unit 9 tilts back and forth and is connected to the lower end of the operation lever 13 as shown in FIGS. 3 (a) and 3 (b). The movable valve body 6 slides back and forth along the sliding plane of the upper surface of the fixed valve body 17 via the support member 15. As a result, the water inlet valve hole 22 and the hot water inlet valve hole 23 of the fixed valve body 17 are opened and closed.

  As shown in FIG. 4, the on-off valve unit 9 includes a housing 11, a packing 12, an operation lever 13, a lever guide 14, a support member 15, a movable valve body 6, a fixed valve body 17, a packing 18, an O-ring 19, and a bottom cover. 20 or the like. Further, a resistance member 40 is disposed on the upper portion of the housing 11, and the resistance member 40 is formed by a pedestal portion 41, an upper member 42, a ball 43, a stopper 44, a connecting portion 45, and the like.

As shown in FIG. 5, the fixed valve body 17 has a water inflow valve hole 22, a hot water inflow valve hole 23, and a mixed water outflow hole 24, and the movable valve body 6 has a water inflow valve hole of the fixed valve body 17. 22, an opening 5 is formed for allowing hot water flowing in from the hot water inflow valve hole 23 to flow out to the mixed water outflow hole 24.
A plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17 is a first plane, a plane parallel to the sliding plane of the upper surface of the fixed valve body 17 is a second plane, and the lever handle 7 on the second plane is The direction in which the temperature of the hot water increases with the rotation is the first rotation direction, and the direction in which the temperature of the hot water decreases is the second rotation direction. Hereinafter, the movable valve body 6 and the fixed valve body 17 will be described in detail.

The shape of the opening 5 provided in the movable valve body 6 in a plan view is a substantially square shape resembling a “ku” in hiragana, and is asymmetrical to the left and right. The shape of the opening 5 will be described in more detail. The shape of the opening 5 is close to a sector shape centered on the bent portion of the hiragana “ku”, and its central angle is a little less than 270 °. Both ends of the opening 5 in the fan shape are positioned on the hot water side with respect to the axis in the C direction in a state where the lever handle 7 is at the center position C, and in particular, the water inflow valve hole 22 and the hot water in the both ends. The fan-shaped end of the opening 5 that overlaps with the inflow valve hole 23 is located slightly on the first rotational direction side across the axis in the C direction.
When comparing the shape of the opening 5 and the mixed water outflow hole 24 of the fixed valve body 17 in the water stop state (FIGS. 6 (L1), (X1), (C1), (R1)), the area of the opening 5 Is smaller than the area of the mixed water outflow hole 24, and the entire opening 5 is superposed on the mixed water outflow hole 24. In addition, the outer shape of the opening 5 is shaped so that the outline of the opening 5 follows the shape of the mixed water outflow hole 24 even if the opening 5 is rotated to any position in the left-right rotation range of the lever handle 7. It has been.

The plan view shapes of the water inflow valve hole 22 and the hot water inflow valve hole 23 provided in the fixed valve body 17 are substantially the same shape and have an arch shape, and the hot water inflow valve hole 23 and the water inflow valve hole 22 in the installed state. The intermediate position is formed on the first rotational direction side from the center position C. That is, in the installed state, the water inflow valve hole 22 and the hot water inflow valve hole 23 have a non-axisymmetric shape when the first plane including the axis in the C direction in FIG. Specifically, by decentering the water inflow valve hole 22 and the hot water inflow valve hole 23 in the first rotation direction or by making the arch shape of the water inflow valve hole 22 wider, the hot water inflow valve hole 23 and the water inflow An intermediate position of the valve hole 22 is formed on the first rotation direction side from the center position C.

As shown in FIG. 3, the movable valve body 6 is slidably arranged on the upper surface of the fixed valve body 17 in the on-off valve unit 9, and an opening / closing mechanism 30 is formed by these members. As described above, when the lever handle 7 shown in FIG. 1 is turned up and down and turned left and right, the operation lever 13 tilts back and forth and turns left and right and is movable through the support member 15 connected to the lower end of the operation lever 13. The valve body 6 slides back and forth and rotates left and right. Thereby, opening / closing and opening degree adjustment of the water inflow valve hole 22 and the hot water inflow valve hole 23 of the fixed valve body 17 are performed.

  On the other hand, as shown in FIG. 1, a resistance member 40 is provided between the housing 11 and the lever handle 7 to provide resistance, that is, a click feeling when the lever handle 7 is rotated left and right. The resistance member 40 also rotates with the operation.

Hereinafter, the configuration of the resistance member 40 will be described with reference to FIGS.
The resistance member 40 has a shape following the housing 11, and includes a cylindrical pedestal portion 41 fitted in the housing 11, a cylindrical upper member 42 covering the pedestal portion 41, and the pedestal portion and the upper member 42. A fitted ball 43; a cylindrical stopper 44 attached to cover the side surface of the upper member 42 to prevent the ball 43 from falling off; and a connecting portion 45 fixed to the upper member 42 so as not to rotate. It has.
The upper member 42 is fixed to the lever handle 7 via the connecting portion 45 so as to rotate together with the lever handle 7. More specifically, the rotation of the lever handle 7 is transmitted to the operation lever 13 via the spacer 10, the rotation of the operation lever 13 is further transmitted to the connecting portion 45, and the rotation transmitted to the connecting portion 45 is connected to the connecting member 45. And is transmitted to the upper member 42 fixed so as not to rotate. As a structure for rotating integrally with the operation lever 13, the connecting portion 45 is provided with a fitting hole 451 that fits into the shape of the operation lever 13. The movement of the lever handle 7 is transmitted to the upper member 42 by being fixed to 42.
The pedestal portion 41 is fixed to the housing 11 so as not to rotate in a state where the pedestal portion 41 is mounted so as to slide with respect to the rotation of the upper member 42.

On the side surface of the pedestal portion 41, a groove-shaped guide rail 410 that slidably guides the ball 43 in accordance with the left-right rotation of the lever handle 7, and a mountain-shaped resistance portion disposed on the guide rail 410 411 is disposed, and the resistance portion 411 is arranged so as to obtain a sense of resistance at the central position C of the lever handle 7 shown in FIG. 2 in a state where the resistance member 40 is attached when the faucet is used.

For example, in the present embodiment, the position of the resistance portion 411 provided on the pedestal portion 41 and the position of the ball insertion hole 421 provided on the upper member 42 are obtained so that a sense of resistance is obtained when the lever handle 7 is at the center position C. I have decided. Specifically, in the pedestal portion 41, the resistance portion 411 is disposed at a position rotated by 90 ° to the left and right from the central position C. In the upper member 42, the lever handle 7 is at the central position C, and the central position is reached. A ball insertion hole 421 is disposed at a position rotated 90 ° to the left and right from C, and the ball 43 hits the resistance portion 411 when the lever handle 7 rotates in the first rotation direction from the center position C. .

The mountain-shaped resistance portion 411 provided on the guide rail 410 is provided with a gentle slope 411a and a steep slope 411b having a steeper angle than the gentle slope 411a, and the lever handle 7 is operated in one direction to resist. The gentle slope 411a and the steep slope 411b are arranged so that the ball 43 climbs the gentle slope 411a when climbing over the portion 411, and climbs the steep slope 411b when operating in the other direction and climbs over the resistance portion 411.

The ball 43 moves along the guide rail 410 of the pedestal portion 41 as the upper member 42 rotates while being inserted into the ball insertion hole 421 provided on the side surface of the upper member 42.
Further, a stopper 44 that covers the side surface of the upper member 42 is mounted so that the ball 43 does not fall out of the ball insertion hole 421. The stopper 44 is made of an elastically deformable member, and can be elastically deformed when the stopper 44 is mounted or when the ball 43 moves. Further, the stopper 44 has a role of urging the ball 43 inward.

  Here, based on FIG. 2, FIG. 6, the function of the opening / closing mechanism 30, an effect, etc. are demonstrated. FIG. 6 (L1) shows a position (left position) where the lever handle 7 (see FIG. 1) is rotated downward on the first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17 and rotated downward. L) shows the opening / closing mechanism 30, and FIG. 6 (X 1) shows the mixing region with the lever handle 7 rotating downward on a first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17. 6 shows the opening / closing mechanism 30 when it is at the boundary (switching position X) between M and the water region W. FIG. 6C1 shows a first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17. 6 shows the opening / closing mechanism 30 when the lever handle 7 is in the center position C with the lever handle 7 turned downward, and FIG. 6 (R1) is on the first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17. The opening / closing mechanism 30 is shown when the lever handle 7 is in a position rotated rightward (right position R) with the lever handle 7 rotated downward. To have.

  When the lever handle 7 is rotated downward on a first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17, the lever handle 7 is moved with respect to the sliding plane of the upper surface of the fixed valve body 17. When the left and right are rotated on a second plane parallel to each other, as shown in FIGS. 6 (L1), (X1), (C1), and (R1), the mixed water outflow hole 24 and the movable valve body 6 of the fixed valve body 17 are used. However, since the water inlet valve hole 22 and the hot water inlet valve hole 23 of the fixed valve body 17 are kept closed by the movable valve body 6, the water outlet 3 (FIG. No hot water is discharged from 1). That is, if the lever handle 7 is rotated downward, hot water from the spout 3 (see FIG. 1) even if the lever handle 7 is rotated left and right within the range from the right position R to the left position L shown in FIG. Does not discharge.

  On the other hand, FIG. 6 (L2) shows a state in which the lever handle 7 is rotated upward on the first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17 and the sliding plane of the upper surface of the fixed valve body 17. 6 shows the opening / closing mechanism 30 when it is in a left-turned position (left position L) on a second parallel plane, and FIG. 6 (X2) is perpendicular to the sliding plane of the upper surface of the fixed valve body 17. FIG. 6 (C2) shows the opening / closing mechanism 30 when the lever handle 7 is on the first plane and is at the boundary (switching position X) between the mixing region M and the water region W with the lever handle 7 rotated upward. 6 shows the opening / closing mechanism 30 when the handle 7 is in the center position C in a state where the handle 7 is rotated upward on the first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17, and FIG. 7 is turned rightward in a state of being rotated upward on a first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17. It shows when in the (right position R).

  In the state shown in FIG. 6 (L2), hot water is discharged from the spout 3 (see FIG. 1) by the opening overlapping portion 25 where the hot water inflow valve hole 23 and the opening 5 overlap. In the state shown in FIG. 6 (X2), only water is discharged from the water outlet 3 by an opening overlapping portion (not shown) where the water inlet valve hole 22 and the opening 5 overlap. In the state shown in FIG. 6 (C2), only water is discharged from the water outlet 3 by the opening overlapping portion 25 where the water inflow valve hole 22 and the opening 5 are overlapped. In the state shown in FIG. 6 (R2), only water is discharged from the water outlet 3 by the opening overlapping portion 25 where the water inflow valve hole 22 and the opening 5 are overlapped.

Thus, in the hot and cold water mixing tap 1 shown in FIG. 1, the lever handle 7 at the central position C (see FIG. 2) is moved upward on the first plane perpendicular to the sliding plane of the upper surface of the fixed valve body 17. The opening / closing mechanism 30 changes from the closed state shown in FIG. 6 (C1) to the open state shown in FIG. 6 (C2), but the hot water inlet valve hole 23 remains closed. Since the inlet valve hole 22, the opening 5, and the mixed water outlet hole 24 are polymerized, only water is discharged from the water outlet 3. Accordingly, even if the user unconsciously opens the lever handle 7 at the center position C, only water is discharged from the water outlet 3 without mixing hot water, so that waste of hot water is lost. Use can be prevented. Since the shape of the opening 5 is not limited to a square shape, when the opening / closing mechanism 30 is in the state shown in FIG. 6 (C2), the mixed water outflow hole 24 is formed only in the water inflow valve hole 22 through the opening 5. Any shape that communicates may be used.
Further, even when the closed state of FIG. 6 (X1) is changed to the open state of FIG. 6 (X2), the hot water inflow valve hole 23 remains closed and the water inflow valve hole 22 and the opening 5 Since the mixed water outflow hole 24 is polymerized, only water is discharged from the water outlet 3. Therefore, even when the lever handle 7 at the switching position X is opened in the water stop state, only water is discharged from the water outlet 3 without mixing hot water, so that wasteful use of hot water is avoided. Can be prevented.

  Due to the shape of the opening 5 described above, the lever handle 7 is discharged regardless of the central position C when hot water is mixed and discharged when the user unconsciously opens the lever handle at any position in the left-right rotation range of the lever handle. Since the probability of being discharged is small and the probability of only water being discharged is large, it is possible to provide a hot and cold water mixing faucet that can prevent wasteful use of hot water that is not intended by the user.

Next, the function, action and effect of the resistance member 40 will be described with reference to FIGS.
FIG. 6 (L3) shows the state of the resistance member 40 when it is in the left-turned position (left position L), and FIG. 6 (X3) is the position of the boundary between the mixing region M and the water region W (switching position). X) shows the state of the resistance member 40 when in position, FIG. 6C3 shows the state of the resistance member 40 when in the center position C, and FIG. The state of the resistance member 40 when in the right position R) is shown.

  The resistance portion 411 is disposed between the switching position X and the center position C. In particular, the lever handle 7 is disposed so as to feel a resistance when the lever handle 7 is rotated from the center position C in the first rotation direction, and the lever handle 7 is rotated from the left position L in the reverse direction to the center position C. In this case, it is configured so that a sense of resistance is not felt compared to when the lever handle 7 is rotated from the central position C in the first rotation direction. This configuration will be described in more detail below.

When the lever handle 7 is at the center position C, as shown in FIG. 6 (C3), the ball 43 positioned by the ball insertion hole 421 of the upper member 42 and the guide rail 410 of the base 41 is placed on the guide rail 410. Located near the steep slope 411b side.
When the lever handle 7 is rotated in the first rotation direction from the state of FIG. 6 (C3), the ball 43 is pushed up to the top of the mountain-shaped resistance portion so as to get over the steep slope 411b. At this time, the ball 43 tries to jump out from the side surface of the upper member 42, but is urged inward so as not to fall off by the stopper 44. As described above, since the stopper 44 is elastically deformed by the movement of the ball 43 in the direction of climbing to the top of the resistor portion 411, the stopper 44 becomes a resistance that prevents the ball 43 from climbing up the slope. Both the resistance due to the stopper 44 and the force necessary to climb the steep slope 411b cause the lever handle 7 to rotate in the first rotational direction from the center position C, that is, from the water region W that discharges only water. The resistance is applied to the mixed area M of hot water and water and is transmitted to the user as a sense of resistance. More specifically, since the frictional resistance applied when climbing over the resistance portion 411 is larger than the frictional resistance applied when the ball 43 slides along the guide rail 410, the resistance applied after reaching the resistance portion 411 until it gets over. Rather, the resistance applied before reaching the resistance portion 411 or after overcoming the resistance portion 411 is smaller. This difference in resistance is transmitted to the user as a sense of resistance. In addition, since the position where the resistance is generated coincides with the center position C, the user can be notified of the switching between the water area W and the mixing area M, and wasteful use of hot water can be prevented.

After overcoming the mountain shape of the resistance portion 411, the ball is positioned on a gentle slope 411a having a gentler angle than the steep slope 411b. Since the gentle slope 411a has a gentle angle, the lever handle 7 does not rotate freely in the downward direction of the gentle slope 411a, that is, in the first rotational direction. Therefore, even if the lever handle 7 is left in the first rotation direction from the resistance portion 411, the lever handle 7 will not move freely in the first rotation direction. Even in the mixed water tap having the resistance portion 411, wasteful use of hot water can be prevented.
On the gentle slope 411a, the resistance for rotating the lever handle 7 is small in either the first rotation direction or the second rotation direction, and the user does not feel resistance.

When the lever handle 7 is rotated in the second rotation direction so as to straddle the resistance portion 411, the ball 43 descends the steep slope 411b, contrary to when the lever handle 7 is rotated in the first rotation direction from the center position C.
In this case, since the force due to the elastic deformation of the stopper 44 does not become a resistance against the rotation of the lever handle 7, the user does not receive a sense of resistance, and the lever handle 7 is placed so as to straddle the resistance portion 411. The lever handle 7 can be turned with a smaller force than when turning in the turning direction.
As described above, when the lever handle 7 is rotated in the second rotation direction so as to straddle the resistance portion 411, the lever handle 7 can be rotated to a position where only water is discharged without receiving a sense of resistance. Further, it is possible to prevent the lever handle 7 from rotating before reaching the position where only water is discharged, thereby further preventing wasteful use of hot water. In addition, when water is needed or when it is not desired to use hot water, the temperature can be adjusted smoothly without receiving a sense of resistance, which is safe. Even if the ball 43 stops the rotation of the lever handle 7 at the top of the resistance portion 411, the top of the resistance portion 411 is disposed at the switching position X. Hot water is not discharged in the area W. Therefore, wasteful use of hot water can be prevented.

  In the present embodiment, the fixed valve body has been described as an example of the open / close valve unit including the mixed water outflow hole. However, the present invention is not limited to this, and passes through the space of the opening of the movable valve body. A type in which the mixed water outflow passage through which the hot water passes is provided outside the fixed valve body can also be applied.

In the present embodiment, only the configuration in which the resistance portion 411 includes the gentle slope 411a and the steep slope 411b has been described. However, if the top of the resistance portion 411 is disposed between the switching position X and the center position C, the mixed region Even when the rotation of the lever handle 7 is stopped at the slope of 411 when the resistance portion 411 is straddled from the M to the second turning direction, only water can be discharged, so that the slope angles are equal. This is preferable because it prevents wasteful use of hot water.

  Next, a modified example of the present invention will be described with reference to FIGS. In addition, the description regarding the same structure as 1st Embodiment mentioned above is abbreviate | omitted suitably.

FIGS. 8 to 13 are schematic views of main portions in which the shape of the resistance portion 411 is different. For example, in FIGS. 8 to 13, the guide rail 410 is represented by a straight line for simplicity, but actually, FIG. As expressed in FIG. 6, it has a cylindrical shape similar to the peripheral surface of the pedestal 41.
Also, X and C in the figure represent the switching position X and the center position C, respectively, as in FIG. 2, and the position of the ball 43 when the lever handle 7 is moved to the switching position X or the center position C. Represents.
Further, H, M, and W in the figure also represent the hot water region H, the mixing region M, and the water region W, respectively, as in FIG. 2, and the lever handle 7 is moved to the hot water region H, the mixing region M, or the water region. The position of the ball 43 when moved to W is shown.
FIG. 8 is a drawing according to the above-described embodiment, and is a drawing used for comparison with the modified examples shown in FIGS. 9 to 14.

  Comparing FIG. 8 and FIG. 9, in the first modified example of the first embodiment having the configuration of FIG. 9, the position where the ball 43 is in contact with the slope on the water region W side substantially coincides with the center position C. Although it is the same as that of the above-mentioned embodiment, it has a surface parallel to the guide rail 410 according to the cylindrical shape of the base part 41 in the mountain-shaped top part of the resistance member 40, ie, the part between slopes, in addition to this. The difference is that a parallel portion 412 is provided. With such a configuration, even when the resistance member 40 wears due to repeated use and the shape of the mountain-shaped portion changes, the parallel member 412 wears from the end of the parallel portion 412. Height tends to remain. Therefore, even when there is repeated use, the switching between the water region W and the mixing region M can be made clearer.

According to the configuration of the second modified example of FIG. 10, the slope on the mixed region M side is a slope arranged to have a certain slope from the end of the parallel part 412 to the guide rail 410. Conversely, the slope on the water region W side with the parallel portion 412 as a boundary is a curved surface 413 that is recessed from the end of the parallel portion 412 to the guide rail 410, and the curved surface 413 is a vertical portion that is substantially perpendicular to the guide rail 410. Have According to such a configuration, compared with the above-described embodiment shown in FIG. 8, the slope is a curved surface 413, so that a stronger resistance is obtained when the water region W is switched to the mixing region M over the curved surface 413. Since a feeling can be felt, it can be made to be aware of switching of hot water and water, and as a result, it can make the use of hot water strong.
Further, when descending the curved surface 413 and switching from the mixing region M to the water region W, the ball 43 falls from the parallel portion 412 toward the slope having the curved surface 413 due to the force from the detent 44, and the ball 43 becomes a base. A click sound is generated when it collides with the portion 41. As a result, the user can be informed that the water has been switched to water, and therefore, wasteful use of hot water can be prevented.
Further, according to the present modification, the slope between the switching position X and the center position C is the curved surface 413, so that the distance between the switching position X and the center position C is shorter than that of the straight slope. can do. With this configuration, the hot water switching position and the center of the rotation range of the lever handle 7 are closer, and the user can be more strongly aware of the hot water switching position, thus preventing wasteful use of hot water. Can do.
Further, during the operation of switching from the mixing region M to the water region W, when the ball 43 gets over the switching position X, the ball 43 moves from the parallel portion 412 toward the inclined surface having the curved surface 413 by the force from the detent 44. The ball 43 collides with the pedestal 41 and generates a clicking sound. In this way, since the user is notified by the resistance and the click sound that the water discharge position has been switched from the mixing region M to the water region W, wasteful use of hot water can be more reliably suppressed. The vertical portion does not need to be completely perpendicular to the guide rail 410. As described above, the ball 43 falls down at the vertical portion, and the ball 43 collides with the pedestal portion 41 to generate a clicking sound. I hope it has been done.
Further, in this modified example, since the configuration for generating the click sound such as the curved surface 413 is provided only within the range of the water region W, the click sound and the water region W are easily associated with each other, and the waste of hot water is lost. Use can be further suppressed.
In addition, although the curved surface 413 in this modification has a concave shape, a sense of resistance is generated even if the curved surface shape protrudes conversely. Further, if the protruding curved surface has a vertical portion, a click sound is also generated. However, comparing the concave curved surface with the projected curved surface, the protruding curved surface tends to reduce the sense of resistance and click noise as the wear progresses, but the concave curved surface as in this modification example If so, there is little decrease in resistance and click sound due to wear, which is excellent in terms of durability.

In addition, according to the third modified example of the first embodiment using the configuration of FIG. 11, a substantially vertical vertical from the parallel part 412 to a height different from the parallel part 412 between both slopes of the resistance part 411. When the lever handle 7 is operated from the water region W toward the mixing region M while the lever handle 7 is provided, the ball that has fallen at the step 414 due to the force from the stopper is provided. 43 collides with the pedestal 41 and generates a clicking sound. In this modified example, a step 414 is provided between the slope on the hot water side and the parallel part 412. Specifically, the slope on the mixing region M side is a position lower than the parallel part 412 by a predetermined height. When the ball 43 falls from the parallel portion 412 toward a position lower by a predetermined height by being arranged from the guide rail 410 to the guide rail 410, the ball 43 and the pedestal portion 41 collide with each other, a clicking sound is generated, and a mixing region is generated. You can tell by sound that you entered M. That is, according to the present modification, the switch from the water region W to the mixing region M is reliably transmitted to the user with two feelings of resistance at the center position C and a click sound generated when the step 414 is exceeded. Can do. More specifically, tell the user with a sense of resistance that the water region W is switched to the mixing region M, and when the switch position X is exceeded, inform the user that the mixing region M has been entered with a click sound. Therefore, wasteful use of hot water can be prevented more reliably. In FIG. 11, the vertical portion of the step 414 is drawn perpendicular to the guide rail 410, but the vertical portion does not have to be completely perpendicular to the guide rail 410 as in the second modification described above. As described above, it is sufficient that the ball 43 is provided so that the ball 43 falls at the vertical portion and the ball 43 collides with the pedestal portion 41 to generate a clicking sound.
Further, since the step 414 in the present embodiment is provided so that the slope starts from a height lower than that of the parallel portion 412, it is resistant when operating from the mixing region M side to the water region W side so as to get over the step 414. Create a feeling. However, the resistance feeling generated at the step 414 is weaker than the resistance feeling generated on the slope starting from the parallel portion 412. With this configuration, a strong resistance is generated only when operating on the high temperature side, and when operating on the low temperature side, the difference in height from the parallel portion 412 is lower than that of 413, and thus resistance is not easily detected. That is, when water is needed or when it is not desired to use hot water, the temperature can be adjusted smoothly without receiving a sense of resistance.
Furthermore, since the parallel part 412 having a plane parallel to the guide rail 410 is provided in the portion between the slopes as in the second embodiment, the water region W can be used even when it is used repeatedly. And switching to the mixed region M can be made clearer.

According to the fourth modification of the first embodiment using the configuration of FIG. 12, the slopes having the curved surfaces 413 are arranged on both sides of the parallel portion 412, and the curved surface 413 and the parallel portion 412 on the water region W side. The boundary between and corresponds to the switching position X. According to such a configuration, even if the lever handle 7 is rotated in any of the first rotation direction and the second rotation direction, the switching between the water region W and the mixing region M is caused by resistance and clicking sound. The user can be surely communicated to the user. More specifically, when switching from the water region W to the mixing region M, first, a strong resistance is generated by the curved surface 413 on the water region W side when the switching position X is crossed, and then the curved surface 413 on the mixing region M side. The ball 43 falls and collides with the pedestal 41 to generate a click sound. On the contrary, when switching from the mixed region M to the water region W, first, a strong resistance is generated by the curved surface 413 on the mixed region M side, and then the ball 43 on the curved surface 413 on the water region W side when the switching position X is exceeded. Falls and the ball 43 collides with the pedestal 41 to generate a click sound. Therefore, when climbing over the resistance portion 411, even if the lever handle 7 is operated in any direction, the sense of operation resistance is first transmitted to the user at the center position C, and then a click sound is generated. Therefore, it is easy to confirm the click sound, and it is possible to more reliably suppress the wasteful use of hot water.
Moreover, since the parallel part 412 which has a surface parallel to the guide rail 410 is provided in the part between a slope as well as the 1st modification in the above-mentioned 1st Embodiment, when it is used repeatedly Even so, it is possible to make the switching between the water region W and the mixing region M clearer.

  Next, a fifth modification of the first embodiment using the configuration of FIG. 13 will be described. A description of the same configuration as that described above is omitted.

According to the fifth embodiment in the first embodiment using the configuration of FIG. 13, the step provided in the resistance portion 411 is disposed between the end portions of the parallel portion 412 and follows the shape of the ball 43 to guide rails. The concave portion 415 is a curved concave portion 415 that is recessed toward the 410 side, and the concave portion 415 has a vertical portion that is substantially perpendicular to the guide rail 410. The parallel part 412 and the recessed part 415 are set to have a height such that the ball 43 applied with force along the guide rail 410 can be fitted and detached. Substantially coincides with the center position C. That is, at the center position C, the ball 43 is fitted in the recess 415 disposed between the end portions of the parallel portion 412. More specifically, the end of the concave portion 415 on the mixed region M side substantially coincides with the switching position X, and the other end on the water region W side is disposed within the range of the water region W. Further, of the slopes sandwiching the parallel portion 412, both ends of the slope on the mixed region M side are disposed in the range of the mixed region M, and both ends of the other slope are disposed in the range of the water region W. With this configuration, even if the lever handle 7 is rotated in either the first rotation direction or the second rotation direction, the switching between the water region W and the mixing region M can be performed with two feelings of resistance and click sound. It can be surely communicated to the user. In particular, when switching from the water region W to the mixing region M, it is possible to notify the limit position where only water is discharged with a click sound and resistance, so it is possible to more reliably suppress wasteful use of hot water.
Furthermore, since the end of the concave portion 415 on the mixed region M side substantially coincides with the switching position X, and all the places where the click sound is generated are disposed within the range of the water region W, the click sound is always generated in the water region. It is generated at W, and wasteful use of hot water can be surely prevented by the user being aware of the click sound.

  Next, a second embodiment using the configuration of FIGS. 14 and 15 will be described. The description of the same configuration as that described in the first embodiment is omitted.

According to the second embodiment using the configuration of FIGS. 14 and 15, the configuration of the parallel portion 412 and the recess 415 is the same as that of the fifth modification example of the first embodiment described above, but the central position C is set. The difference is that the movable valve body 6 and the fixed valve body 17 are configured so that the amount of hot water mixed increases as the amount of rotation increases, regardless of which direction is left or right. More specifically, in the present embodiment, one switching position X is disposed at a position of 5 ° on both sides with respect to the center position C, and the range of 5 ° on both sides is the water region W. . A range from 5 ° to 35 ° at which the switching position X exceeds 35 ° becomes the mixed region M, and a range from 35 ° to 45 ° becomes the hot water region H. According to such a configuration, as in the fifth modification example in the first embodiment described above, even when the lever handle 7 is rotated in any direction, a click sound is first generated at the central position C. Next, since a sense of resistance is generated, the switching between the water region W and the mixed region M can be reliably transmitted to the user with two senses of resistance and click sound. Therefore, wasteful use of hot water can be suppressed more reliably.
Similarly to the first embodiment described above, when switching from the water region W to the mixing region M, it is possible to inform the limit position where only water is discharged with a click sound and a sense of resistance. Wasteful use can be suppressed.
Further, the central position C is the only position for discharging only water, and the position of discharging only water is given to the user by generating resistance and clicking sound at the central position C by rotation from any direction. It can make you strongly aware and prevent wasteful use of hot water.

  The detailed structure of the movable valve body 6 and the fixed valve body 17 which comprise this embodiment is demonstrated using FIG. In addition, the same number is illustrated about the same component.

FIG. 15 is a state diagram of the movable valve body 6 and the fixed valve body 17 in the second embodiment. FIGS. 15A and 15B show the states of the movable valve body 6 and the fixed valve body 17 in the water discharge state, and FIGS. 15C and 15D show the movable valve body 6 in the water stop state and The state of the fixed valve body 17 is represented.
First, the structure of the fixed valve body 17 will be described. The fixed valve body 17 has a circular mixed water outflow hole 24 provided at the center of the valve body and an arch shape so as to surround most of the outer periphery of the mixed water outflow hole 24. The hot water inlet valve hole 23 provided in the shape of the belt and a part of the outer periphery of the mixed water outlet hole 24 not surrounded by the hot water inlet valve hole 23 are disposed so as to be sandwiched by the hot water inlet valve hole 23. And an arcuate belt-shaped water inflow valve hole 22. The hot water inflow valve holes 23 are arranged on both the left and right sides of the center line of the fixed valve body 17 or the water inflow valve hole 22, so that the lever handle can be rotated even if the lever handle is rotated in either direction. As the amount of movement increases, the amount of hot water mixed can be increased.
Next, the configuration of the movable valve body 6 will be described. The movable valve body 6 includes one opening 5 and is configured to be rotatable with respect to the fixed valve body 17.

The mixing of hot water when the movable valve body 6 and the fixed valve body 17 are operated in combination will be described. In FIGS. 15C and 15D, the opening 5 has a hot water inlet valve hole 23 and a water inlet valve hole. No hot water or water is discharged since it does not overlap with any of 22.
And when it is in the state of FIG.15 (c), if the lever handle 7 is operated in the water discharge direction, it will change to the state of Fig.15 (a) from the state of FIG.15 (c), and water discharge will be started. At this time, since the opening 5 overlaps only with the water inflow valve hole 22, only water is discharged as a result. The position of the lever handle 7 at this time is located at the center position C.
When the lever handle 7 is operated so as to make a transition from the state shown in FIG. 15A to the state shown in FIG. 15B, only water is discharged until immediately before the opening 5 is applied to the hot water inlet valve hole 23. . This position corresponds to the switching position X. When the lever handle 7 is further operated, the opening 5 overlaps with the hot water inflow valve hole 23, and the hot water mixing region M is reached. If the operation is further continued as it is, the state transitions to the state of FIG. 15B and reaches the hot water region H where only hot water is discharged.
Further, the same thing occurs even if the lever handle 7 is operated in the opposite direction to the transition to the position shown in FIG. That is, when the lever handle 7 is operated so as to shift from the state shown in FIG. 15 (a) to the position opposite to that shown in FIG. 15 (b), only water is supplied until immediately before the opening 5 is applied to the hot water inlet valve hole 23. Water is discharged, and this position corresponds to the switching position X. When the lever handle 7 is further operated, the opening 5 overlaps with the hot water inflow valve hole 23, and the hot water mixing region M is reached. If the operation is further continued as it is, the state transitions to a state (addition of a valley) opposite to FIG. 15B and reaches a hot water region H where only hot water is discharged.

  As described above, two types of embodiments have been described with modifications, but the present invention is not limited to the above-described configuration, and the above-described embodiments and modifications are not limited to the effects of the present invention. It can be used in any combination within the range that brings

  For example, the width | variety of the strip | belt shape of the water inflow valve hole 22 and the hot water inflow valve hole 23 of this embodiment does not need to be uniform, and should just be connected. For example, with respect to the hot water inflow valve hole 23, the width of the portion located below can be made narrower than the width of the portion located on the left and right of the mixed water outflow hole 24 in FIG. By doing so, the fixed valve body 17 can be made smaller.

Further, in the second embodiment, the movable valve body 6 and the fixed valve body 17 are configured so that the amount of hot water mixed increases as the amount of rotation increases, especially in the left or right direction with respect to the center position C. From another point of view, this can be said as described below.
For example, in a site where a dishwasher or the like is installed near a faucet, if there is something that obstructs the rotation operation of the lever handle 7 at a position overlapping the rotation range of the lever handle 7, In the prior art, since the temperature is increased as it is rotated from the right side to the left side of the movable range, there is a problem in that it becomes impossible to discharge water in a range where the rotation operation is inhibited. However, as in the configuration of the second embodiment, the movable valve body 6 and the fixed valve body 17 are configured so that the amount of hot water mixed increases as the amount of rotation increases regardless of whether the center position C is the left or right direction. The above-described faucet can solve the above-described problems, and there is a case where there is something that obstructs the turning operation of the lever handle 7 at a position overlapping the turning range of the lever handle 7. Even in such a case, it is possible to provide a faucet capable of adjusting the temperature in a wide range.

  The hot and cold water mixing tap of the present invention can be widely used in a general house or a restaurant kitchen as a water and hot water supply equipment to be placed in a kitchen sink, bathroom, or washstand.

DESCRIPTION OF SYMBOLS 1 Hot water mixing tap 2 Water discharge pipe 3 Water discharge port 4 Water supply pipe 5 Opening part 6 Movable valve body 7 Lever handle 8 Main body part 9 On-off valve unit 10 Spacer 11 Housing 12, 18, 21 Packing 13 Operation lever 14 Lever guide 15 Support member 17 Fixed valve body 19 O-ring 20 Bottom cover 30 Opening / closing mechanism 31 Water faucet body 22 Water inflow valve hole 23 Hot water inflow valve hole 24 Mixed water outflow hole 40 Resistance member 41 Base part 42 Upper member 43 Ball 44 Detachment 45 Connection part

Claims (8)

A fixed valve body having a hot water inlet valve hole and a water inlet valve hole;
A movable valve body that is slidably superposed on the fixed valve body and in which an opening through which hot water from the hot water inflow valve hole and water from the water inflow valve hole flows is formed;
A lever handle for operating the movable valve body,
The amount of hot water discharged from the opening can be adjusted by rotating the lever handle up and down,
The temperature of the hot water discharged from the opening can be adjusted by turning the lever handle left and right,
Having a resistance member that gives resistance to temperature control operation by the lever handle;
When the lever handle is opened by the up-and-down rotation in a state where the lever handle is positioned at the center of the left-right rotation range, the opening of the movable valve body is only in the water inflow valve hole of the fixed valve body. In the hot and cold water faucet that communicates,
The hot and cold water mixing faucet according to claim 1, wherein the resistance member generates a resistance when the lever handle is rotated to a high temperature side in the temperature adjustment operation from a state where the lever handle is located at the center of the left / right rotation range. In the hot and cold water mixing faucet according to claim 1,
The resistance member includes a ball that moves in accordance with a left-right rotation of the lever handle;
A guide rail for slidably guiding the ball;
A mountain-shaped resistance portion provided on the guide rail and having a pair of slopes;
The said resistance part is provided with the parallel part parallel to the said guide rail between the one slope and the other slope among the said slopes, The hot water / water mixing faucet characterized by the above-mentioned. In the hot and cold water mixing faucet according to claim 2,
The hot and cold water faucet, wherein the resistance portion has a step from the parallel portion to the slope between the slope and the parallel portion. In the hot and cold water mixing faucet according to claim 2 or 3,
The hot and cold water faucet, wherein the resistance portion has a curved surface that is recessed from the end of the parallel portion to the guide rail. In the hot and cold water mixing faucet according to claim 2,
The hot and cold water faucet characterized in that the resistance portion has a concave portion recessed toward the guide rail between end portions of the parallel portion. In the hot and cold water mixing faucet according to any one of claims 1 to 5,
When the lever handle is opened in a state where the opening of the movable valve body is located at the center of the rotation range, the hot water inflow valve hole is closed so that the opening and the water inflow valve hole overlap. A hot and cold water mixing faucet characterized by being formed in an asymmetrical shape. In the hot and cold water mixing faucet according to claim 5,
The recess is disposed at a center position of the left-right rotation range,
A hot and cold water mixing faucet characterized in that the amount of hot water mixed increases as the amount of rotation increases in any direction left and right with respect to the center position of the left and right rotation range. In the hot and cold water mixing faucet according to any one of claims 1 to 4,
The resistance member produces a strong resistance only when it is moved to the high temperature side among the case where the resistance member is rotated to the high temperature side and the case where the resistance member is rotated to the low temperature side. Water faucet.