JP2009167635A - Faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a faucet which is equipped with a display unit for displaying a changeover state of channels in interlock with a stroke of a push button, wherein the display unit can secure a sufficient display area by a structure in which a display area of a display section is hardly limited by the stroke of the push button, to thereby implement the display unit with good visibility. <P>SOLUTION: The faucet is equipped with the push switch display unit. The display unit has: a display plate axially supported by a vertical shaft member in a head portion, and turnable in a horizontal plane to display the changeover state of the channels in a seethrough window formed in the head portion; and a slide section formed of a slot bored in either one of the display plate and the push button, and a pin protruded from the other one, for being fitted into the slot, and turning the display plate in the horizontal direction in interlock with the stroke of the push button. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a faucet equipped with a display device that displays a switching state between raw water and purified water (or hot water) in conjunction with the stroke of a push button.

  Conventionally, a flow path switching mechanism that selects and switches, for example, a purified water flow path and a raw water flow path with a single discharge port, can switch the flow path that opens the valve according to the stop position of the push button. There is.

  As a display device that is attached to a faucet equipped with such a push button type channel switching mechanism and allows a user to visually recognize the channel switching state, Patent Document 1 discloses a push button switch. A fan-shaped display rotating body is incorporated inside, and a see-through window is provided in the operation part of the push button switch so that a display suitable for the operation content is displayed on the see-through window according to the push operation of the push button switch. Things are listed.

  Further, Patent Document 2 has a thrust lock mechanism that maintains a different water discharge state each time the push button is pushed once, and is provided in a rotating cylinder of the thrust lock mechanism by pushing the push button. In addition, there is a description that displays a switching state of a flow path through a see-through window provided in a push button located outside the display unit by rotating the display unit.

  Further, Patent Document 3 includes two display body support members that protrude from the case body and have shaft holes formed in the side surfaces of the member, and shaft members that are inserted into the respective shaft holes from both side surfaces formed in a fan shape. A movable display body that protrudes and displays the necessary display content on the curved surface portion, and an inclined surface forming member that abuts on the end surface located on the front end side in the rotational direction of the movable display body are projected on the outer surface side in the center of the rear end portion. And an elastic member that is interposed between the display body support member and the movable display body and provides a rotational force for rotating the movable display body toward the push button about the shaft member. The display device of the push switch consisting of the above is described as having a simple configuration and being downsized to such an extent that it can be applied to the discharge port of a water purifier, the head portion of a shower head, and the like.

  Further, Patent Document 4 includes a push button and a movable display body that changes the orientation of the display surface in conjunction with the operation of the push button, and the outer surface of the push button and the contact portion of the movable display body By switching the movement of the display surface of the movable display body in conjunction with the reciprocation of the push button by the contact / separation operation, the switching state of the flow path can be displayed without using an elastic member. A possible display device is described.

JP 2000-299030 A JP 2004-250894 A JP 2004-082031 A Japanese Patent Laying-Open No. 2005-087886

  Among such conventional techniques, in Patent Documents 1, 3, and 4, the display body formed in a cylindrical shape with a bottom surface is shaped to rotate around a horizontal rotation axis in a main part. There is a problem in that the volume of the display body and the area of the display portion located on the curved surface of the display body are largely restricted in design by the stroke of the push button, and a sufficient display area cannot be secured.

  Also, in Patent Document 2, since the display unit provided on the bottom surface of the columnar rotating cylinder has a structure that rotates only in one direction, the portion of the display unit that displays the switching state of the flow path through the transparent window. There is a problem that the area is limited to a very small part and a sufficient display area cannot be secured.

  An object of the present invention is to provide a faucet equipped with a push switch display device that secures a sufficient display area and has a good visibility by making the display area of the display unit difficult to be restricted by the stroke of the push button. It is to provide.

  Another problem is that the display board rotates excessively in conjunction with operations such as excessive movement between the top dead center of the push button and the deep stop position and rattling in the shallow stop position, making it difficult to see the display section. It is an object of the present invention to provide a water faucet equipped with a push switch display device that prevents the occurrence of the failure and provides reliable display contents.

In the present invention, means for solving the above problems are as follows.
A first invention relating to a faucet includes at least two flow paths that reach the head portion through the faucet body, a push button that can alternately stroke between a shallow stop position and a deep stop position, and both stops of the push button. In a faucet comprising a push button type channel switching mechanism comprising a switch mechanism having a valve that switches so that water in any one channel flows downstream depending on the position, in the horizontal plane within the head portion And a display plate that displays the switching state of the flow path in a see-through window provided in the head portion, a long hole provided in one of the display plate and the push button, and the other provided in the other. It is characterized by comprising a push switch display device comprising a pin fitted into a long hole and having a slide portion for rotating the display plate in a horizontal direction in conjunction with the stroke of the push button.

  According to a second invention, in the first invention, the switch mechanism includes a valve that switches a flow path by selecting any one flow path according to a stop position of the push button and opening the valve. It is characterized by.

  A third invention is the valve according to the first invention, wherein the switch mechanism switches between the two flow paths by opening and closing a flow path with a small pressure loss of the two flow paths according to the stop position of the push button. It is characterized by having.

  According to a fourth invention, in any one of the first to third inventions, the long hole of the slide portion is formed in a straight line extending outward in the radial direction from the vicinity of the rotation center portion of the display plate. It is characterized by that.

  A fifth invention is characterized in that, in any one of the first to third inventions, the long hole of the slide portion is drilled in a U-shape from the vicinity of the rotation center portion of the display plate to the outside. To do.

  According to a sixth invention, in any one of the first to fifth inventions, a relief portion having a long hole width wider than a pin diameter is formed at a position where the pin abuts at a shallow stop position of the push button. It was set up.

  According to the first invention, at least two flow paths that reach the head portion through the faucet body, a push button that can alternately stroke between a shallow stop position and a deep stop position, and both stop positions of the push button. Accordingly, in a faucet equipped with a push button type flow path switching mechanism comprising a switch mechanism having a valve for switching so that water in one of the flow paths flows downstream, it rotates in a horizontal plane within the head portion. A display plate that is supported movably and displays the switching state of the flow path in a see-through window provided in the head portion, a long hole provided in one of the display plate and the push button, and a long hole provided in the other Provided with a push switch display device that includes a slide portion that includes a pin that is inserted into the slider and that rotates the display plate in a horizontal direction in conjunction with the stroke of the push button. To, can be difficult to limit the stroke of the push button the display area. Thereby, the display area of a display board can be ensured large and the visibility of the display content can be improved.

  According to the second aspect of the present invention, it is possible to select one of the flow paths according to the stop position of the push button and open the valve so that the flow path is switched. The flow path can be switched reliably.

  According to the third invention, the switch mechanism has a valve that switches between the two flow paths by opening and closing a flow path with a small pressure loss among the two flow paths according to the stop position of the push button. Using the difference in pressure loss between the two flow paths, the two flow paths can be switched by simply opening and closing a flow path with a small pressure loss. Thereby, the structure of the valve mechanism can be simplified.

  According to the fourth aspect of the invention, the long hole of the slide portion is formed in a straight line extending outward in the radial direction from the vicinity of the rotation center portion of the display plate, thereby interlocking with the stroke of the push button. Thus, it is possible to reliably apply the force to rotate the display panel and to reliably achieve the effect of the first invention.

  According to the fifth aspect of the present invention, the deep stop position when the push button is stroked by drilling the elongated hole of the slide portion in the shape of a U from the vicinity of the rotation center portion of the display plate to the outside. The excess movement of the push button between the stroke and the top dead center of the stroke can be prevented from being reflected in the rotation of the display board. As a result, it is possible to eliminate an excessive movement of the display board such that an appropriate display location passes once through the fluoroscopic window and returns to a predetermined stop position, and an appropriate display location can always be displayed on the fluoroscopic window. Thus, it is possible to provide reliable display contents to the user.

  According to the sixth aspect of the present invention, the relief portion having the long hole wider than the diameter of the pin is provided at the position where the pin abuts at the shallow stop position of the push button. The play of the push button can be prevented from being reflected in the rotation of the display board. As a result, it is possible to prevent the display board from rattling in conjunction with the rattling of the push button, to always display an appropriate display location on the fluoroscopic window, and to provide a reliable display content to the user. it can.

Hereinafter, a shower head provided with a push switch display device according to an embodiment of the present invention will be described.
As shown in FIGS. 1 to 3, the head portion 1 of the shower head with a flow path switching display is provided with a display plate support member 3 for supporting the display plate 5 at a substantially central portion of the upper surface of the outer wall of the head body 2. A push button 4 is arranged in the center on the front side of the outer wall, and a head cover 6 that covers the outer surface is attached with the display plate support member 3 and the display plate 5 attached to the upper part of the push button 4.

As shown in FIG. 9, the push button 4 has a shallow stop position and a deep position by the coil springs 21 and 28 disposed inside the head body 2 and the thrust lock mechanism 7 positioned between the coil spring 21 and the coil spring 28. The stop position is alternately stroked.
As shown in FIG. 6, the head body 2 has two flow paths, namely, a raw water flow path 22 and a purified water flow path 23, which are configured separately, and a valve mechanism, which opens according to the stop position of the push button 4. Thus, the flow path for discharging water can be switched.
As another embodiment, for example, a water faucet in which two flow paths of raw water and hot water can be switched by a push button may be used.

As shown in FIG. 3, a columnar shaft member 31 protruding upward is provided on the upper surface of the display panel support member 3, and a stopper 32 protruding similarly upward is provided on the back side of the shaft member 31.
The shaft member 31 is passed through the shaft hole 53 of the display plate 5 and becomes the center of rotation of the display plate 5.

As shown in FIG. 4, the push button 4 is provided with an upper guide plate 41 on the upper surface, a right guide plate 42 on the right side, and a left guide plate 43 on the left side. The upper guide plate 41, the right guide plate 42, and the left guide plate 43 are in contact with the outer surface of the head body 2 and serve as guides for guiding the push button 4 in the pushing direction during a stroke.
In addition, a pin 41 a that is a portion to be attached to the display plate 5 is provided at a position on the upper surface of the upper guide plate 41 that is near the side of the shaft member 31 at a shallow stop position.

As shown in FIG. 5, the display plate 5 as a whole is substantially fan-shaped and is made of a plate material having a display portion 51 that is a curved surface inclined downward and a substantially disc-shaped coupling portion 52.
The display unit 51 is provided with displays 51a and 51b for displaying different switching states, which are divided into left and right.
The coupling portion 52 is provided with a shaft hole 53 through which the shaft member 31 is passed in a substantial part of the display plate 5, and a long hole 54 that slides with the pin 41 a of the upper guide plate 41 is formed in the vicinity of the shaft hole 53. And a notch 55 is provided at the end opposite to the display 51. As shown in FIG. 2, the shaft member 31 is passed through the shaft hole 53, and the pin 41 a is inserted into the long hole 54, so that the display plate 5 is placed above the display plate support member 3 and the push button 4. Attach to.

The long hole 54 is provided with a straight portion 54a extending along the radial direction from the side close to the shaft hole 53 to the middle at a shallow stop position of the push button 4, and a refracting portion 54b slightly bent in the middle in the middle. Drill into a square shape. As a result, when the push button 4 is stroked to a deep stop position with the display plate 5 attached to the display plate support member 3 and the push button 4, the refracting portion 54b is located deep in the pushing direction of the pin 41a, and the push button The rotation of the display board 5 is not interlocked with the extra movement up to the top dead center of the fourth stroke.
In addition, the straight portion 54a with which the pin 41a abuts at the shallow stop position is also drilled wider than the diameter of the pin 41a to provide a relief portion, and the push-button 4 rattles at the shallow stop position. Do not interlock.

  Both ends of the notch 55 come into contact with the stopper 32 of the display board support member 3 at a shallow stop position or a deep stop position of the push button 4, respectively, and the display board 5 is rotated by a predetermined angle or more. This prevents the 51a and 51b from becoming difficult to see.

  As shown in FIGS. 1 and 2, the head cover 6 attached with the display board 5 attached to the display board support member 3 and the push button 4 is provided with a hole 61 through which the push button 4 can be operated from the outside. Set up. In addition, a see-through window 62 is provided above the hole 61 so that only one of the displays 51 a and 51 b that displays the current switching state of the flow path is displayed through the see-through window 62.

As shown in FIG. 6, a filter 9 is provided inside the head main body 2, and the raw water flow path 22 and the purified water flow path 23 of the purified water that has passed through the filter 9 communicate with the separate shut-off valves 24 and 25, respectively. The downstream side of each shut-off valve is formed in one collecting portion, and this collecting portion communicates with the discharge port. The valve seats 24a and 25a of the shut-off valves 24 and 25 are arranged side by side and are relatively displaced in the push direction of the push button 4, and only one valve is opened depending on the push amount of the push button 4. It is like that.
With this configuration, the flow path can be switched reliably according to the stop position of the push button 4.

As shown in FIG. 9, the valve bodies 24b and 25b are formed as hard spheres such as iron balls, and are put on the valve seats 24a and 25a to close the shut-off valves 24 and 25, respectively.
A switching shaft 27 having two push rods 26 is provided between the push button 4 and the shut-off valves 24 and 25. When the push button 4 is pushed, the valve bodies 24b and 25b are pushed in the pushing direction by the switching shaft 27. Like that.
In the switching cover 29, holes through which the switching shaft 27 and the push rod 26 are inserted are provided in the center and on both sides, and are arranged behind the switching shaft 27. Further, an O-ring 8 is interposed between the push rod insertion hole of the switching cover 29 and the push rod insertion hole provided in the head body 2.

  In front of the switching shaft 27, a thrust lock mechanism 7 that is a combination of a switching ring 71, a first switching top 72, and a second switching top 73 is disposed.

  As shown in FIG. 10, the switching ring 71 is formed by alternately forming three shallow grooves 71 a and three deep grooves 71 b on the circumference of the cylinder, and inclining the tips of the portions that are not grooves. As shown in FIG. 11, the first switching top 72 includes a thin shaft portion 72a and a thick shaft portion 72b, and three ribs 72c extending in the axial direction are installed at equal intervals on the outer periphery of the thick shaft portion. The front end surface is inclined in the same direction as the inclined surface at the front end of the switching ring 71. As shown in FIG. 12, the second switching top 73 has a positioning support that protrudes from the inner central portion of the push button 4 at one end, with the thin shaft portion 72 a of the first switching top 72 being rotatably inserted at one end. It is formed in a cylindrical member into which the rod 44 is inserted. On the outer periphery on the first switching top 72 side, six ribs 73a are installed at equal intervals and a concave portion 73b inclined on the end surface is formed.

  A coil spring 21 is disposed in the center of the head main body 2 at the back of the switching shaft 27 to bias the switching shaft 27 in a direction away from the head main body 2. A coil spring 28 is also arranged between the push button 4 and the thrust lock mechanism 7 to bias the thrust lock mechanism 7 toward the back side of the head body 2.

Hereinafter, in the shower head with the flow path switching display formed as described above, the flow path switching and the flow path display switching accompanying the push operation will be described.
In the shallow stop position of the push button 4, the valve body 25 b is pressed against the valve seat 25 a of the water purification flow path 23 to close the valve, and in the raw water flow path 22, the valve body 24 b is displaced from the valve seat 24 a and the shut-off valve 24 is closed. Opens and the raw water communicates with the gathering section. In the thrust lock mechanism 7, the rib 72 c of the first switching top 72 is fitted in the deep groove 71 b of the switching ring 71. On the other hand, on the upper side of the head main body 2, the shaft member 31 provided on the upper surface of the display plate support member 3 and the pin 41a of the push button 4 are in the vicinity, and the display 51a on the right side of the display plate 5 is located in the center of the head main body 2. The display content on the right side (for example, “raw water”) can be visually recognized through the see-through window 62 (FIG. 8A).

  When the push button 4 is pushed against the urging force of the coil spring 21 in this state, the rib 72c of the first switching top 72 slides in the deep groove 71b of the switching ring 71 and moves until it disengages from the groove ( Stroke top dead center), the first switching top 72 pushed by the second switching top 73 rotates in accordance with the shape of the inclined surface of the tip of the second switching top 73 in contact with the concave portion of the second switching top 73. It stops in contact with 73b. Thereafter, the first switching top 72 and the second switching top 73 are pushed back by the urging force of the coil spring 21, and the rib 72c of the first switching top 72 is again brought into contact with the inclined surface of the switching ring 71 to rotate, and the shallow groove 71a. The position is fixed where it fits in (deep stop position).

At this time, the pin 41a provided on the push button 4 also moves in the pushing direction, and the pin 41a and the shaft member 31 gradually move away from each other. The pin 41a slides to the outside of the linear portion 54a far from the shaft member 31, and as a result, gives a force for rotating the display board 5 counterclockwise.
As a result of sliding while rotating the display board 5, when the push button 4 is pushed to a deep stop position, the pin 41a reaches the corner of the elongated hole 54, and the bent portion of the elongated hole 54 in the pushing direction of the pin 41a. 54b is located. At this time, the display 51b on the left side of the display board 5 is located in the center of the head body 2, and the display content on the left side (for example, “purified water”) can be visually recognized through the see-through window 62 (FIG. 8B).
While the push button 4 is pushed from the deep stop position to the stroke top dead center and returned from the stroke top dead center to the deep stop position, the pin 41a slides on the bending portion 54b located in the push direction and moves back and forth. It does not give the force which rotates the display board 5 only. Therefore, the display content of the left display 51b is always displayed at an appropriate position on the fluoroscopic window 62 (FIGS. 8C and 8D).

  In a state where the push button 4 is fixed at the deep stop position, the valve body 24b is pressed against the valve seat 24a of the raw water flow path 22 to close the valve, and in the water purification flow path 23, the valve body 25b is moved from the valve seat 25a. It has shifted | deviated, the cutoff valve 25 opens, and purified water is connected to the gathering part. In the thrust lock mechanism 7, the rib 72 c of the first switching top 72 is fitted in the shallow groove 71 a of the switching ring 71. On the other hand, on the upper side of the head main body 2, the display 51b on the left side of the display board 5 is located in the center of the head main body 2, and the display content on the left side can be visually recognized through the see-through window 62 (FIG. 8D).

  When the push button 4 is pushed in a state where the push button 4 is fixed at the deep stop position, the rib 72c of the first switching top 72 slides in the shallow groove 71a of the switching ring 71, and the stroke is moved from the groove at the top dead center. When the second switching top 73 is moved, the first switching top 72 pushed by the second switching top 73 rotates according to the shape of the inclined surface of the second switching top 73 in contact with the concave portion 73b of the second switching top 73. Stop touching. Thereafter, the first switching top 72 and the second switching top 73 are pushed back by the urging force of the coil spring 21, and the rib 72c of the first switching top 72 is again brought into contact with the inclined surface of the switching ring 71 and rotated, resulting in a deep groove 71b. The position is fixed where it fits in (shallow stop position).

At this time, the pin 41a provided on the push button 4 also once moves to the stroke top dead center. However, the pin 41a only slides on the bending portion 54b located in the pushing direction and moves back and forth in the pushing direction. The force which rotates 5 is not given (FIG.8 (e)). The same applies to the return from the stroke top dead center to the deep stop position.
In a state where the push button 4 is pushed back to the deep stop position, the pin 41a reaches the corner of the long hole 54, and during the return from the deep stop position to the shallow stop position, the pin 41a is a straight portion close to the shaft member 31. 54a slides inward, and as a result, a force is applied to rotate the display board 5 clockwise (FIGS. 8E and 8F).

In the above embodiment, as shown in FIG. 8, the long hole 54 of the slide portion is formed in a dogleg shape, but a linear long hole may be provided as shown in FIG.
In this case, since the pin 41a gives a force to rotate the display board during the depression from the deep stop position of the push button 4 to the stroke top dead center and the return from the stroke top dead center to the deep stop position, In the fluoroscopic window 62, the display content of the left display is displayed with a slight shift (FIG. 7C), but when the push button 4 is fixed at a deep stop position, the left display is displayed. The display content is displayed at an appropriate position (FIG. 7D). The same applies to returning the push button 4 to the shallow stop position (FIGS. 7E and 7F).

  In the embodiment shown in FIG. 7, a display plate that is rotatably supported in a horizontal plane in the head unit 1 and displays the switching state of the flow path in a transparent window 62 provided in the head cover 6, and the display plate By comprising a long hole provided and a pin 41 a provided in the push button 4 and fitted in the long hole, and provided with a slide portion that rotates the display plate in the horizontal direction in conjunction with the stroke of the push button 4, Since the display board rotates in a horizontal plane, the display area can be made difficult to be limited to the stroke of the push button 4. Thereby, the display area of a display board can be ensured large and the visibility of the display content can be improved.

  Further, in the embodiment shown in FIG. 8, the long hole 54 of the slide portion is formed in the shape of a circle from the vicinity of the rotation center portion (shaft hole 53) of the display plate 5 to the outside, whereby the push button 4. It is possible to prevent the excessive movement of the push button 4 between the deep stop position and the stroke top dead center when the stroke is made from being reflected in the rotation of the display board 5. As a result, a large display area of the display panel 5 can be secured, and an appropriate display location that has occurred when the linear long hole shown in FIG. 7 is provided passes through the fluoroscopic window 62 and reaches a predetermined stop position. The extra movement of the display board such as returning can be eliminated, and an appropriate display location can always be displayed on the fluoroscopic window 62, so that reliable display contents can be provided to the user.

  In addition, since the pin 41a comes into contact with the push button 4 at a shallow stop position, the hole width of the straight portion 54a of the long hole 54 is made wider than the diameter of the pin 41a to provide a relief portion. The rattling of the push button 4 at the stop position can be prevented from being reflected in the rotation of the display board 5. As a result, it is possible to prevent the display board 5 from rattling in conjunction with the rattling of the push button 4 and to always display an appropriate display location on the fluoroscopic window 62, thereby providing a reliable display content to the user. can do.

[Another form]
In the above embodiment, the slide portion for rotating the display board 5 in the horizontal direction is configured by the long hole 54 provided in the display board 5 and the pin 41 a provided in the push button 4. And a long hole may be provided in the push button.
In the above embodiment, the shaft for rotatably supporting the display plate 5 is configured by the shaft member 31 provided in the display plate support member 3 and the shaft hole 53 formed in the display plate 5. It is good also as a structure which drills a shaft hole in a board | substrate support member and provides a shaft member in a display board.
Moreover, in the said embodiment, although it was set as the structure which switches a flow path by the cutoff valve 24 which interrupts | blocks the raw | natural water flow path 22, and the cutoff valve 25 which interrupts | blocks the purified water flow path 23, The shut-off valve may be provided only in the flow path with a small pressure loss. By constituting such a flow path switching mechanism, the structure of the valve mechanism can be simplified.

It is a figure which shows the head part of the shower head concerning embodiment of this invention, (a) is a side view, (b) is a perspective view. It is a figure which shows the state which removed the head cover of the head part, (a) is a perspective view, (b) is a side view. It is a perspective view which shows the state which removed the display board from FIG. It is a figure which shows a push button, (a) is a top view, (b) is AA sectional drawing, (c) is a side view, (d) is a perspective view. It is a figure which shows a display board, (a) is a top view, (b) is a rear view, (c) is a side view, (d) is a perspective view, (e) is an BB expanded sectional view, (f) Is an enlarged view of a long hole. It is a longitudinal cross-sectional view which shows the inside of a head part. It is a figure which shows display switching when the long hole of a display board is formed linearly, (a) is a figure of a shallow stop position, (b) is a figure pushed in to a deep stop position, (c) is a stroke. (D) is a figure fixed at a deep stop position, (e) is a figure pushed from a deep stop position to a stroke top dead center, and (f) is a figure returned to a shallow stop position. is there. It is a figure which shows switching of the display of the shower head concerning embodiment of this invention, (a) is a figure of a shallow stop position, (b) is the figure pushed in to the deep stop position, (c) is a stroke top dead center. (D) is a figure fixed at a deep stop position, (e) is a figure pushed from a deep stop position to a stroke top dead center, and (f) is a figure returned to a shallow stop position. It is a disassembled perspective view in a head main body. It is a figure which shows a switching ring, (a) is a top view, (b) Left side view, (c) is a front view, (d) is a right side view, (e) is a bottom view. It is a figure which shows a 1st switching top, (a) is a top view, (b) Left side view, (c) is a front view, (d) is a right side view, (e) is a bottom view. It is a figure which shows a 2nd switching top, (a) is a top view, (b) Left side view, (c) is a front view, (d) is a right side view, (e) is a bottom view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head part (shower head) 2 Head main body 3 Display board support member 4 Push button 5 Display board 6 Head cover 7 Thrust lock mechanism 8 O-ring 9 Filter 21 Coil spring 22 Raw water flow path 23 Purified water flow path 24 Shut-off valve 24a Valve seat 24b Valve body 25 Shut-off valve 25a Valve seat 25b Valve body 26 Push rod 27 Switching shaft 28 Coil spring 29 Switching cover 31 Shaft member 32 Stopper 41 Upper guide plate 41a Pin 42 Right guide plate 43 Left guide plate 44 Positioning support rod 51 Display portion 51a, 51b Display 52 Coupling part 53 Shaft hole 54 Long hole 54a Linear part 54b Refraction part 55 Notch part 61 Hole 62 Viewing window 71 Switching ring 71a Shallow groove 71b Deep groove 72 First switching top 72a Thin shaft part 72b Thick shaft part 72c rib 73 second switching top 73a Rib 73b Recess

Claims (6)

At least two flow paths reaching the head through the faucet body,
A push button capable of alternating strokes between a shallow stop position and a deep stop position;
A switch mechanism having a valve for switching so that water in any one flow path flows downstream according to both stop positions of the push button;
In a faucet equipped with a push button type channel switching mechanism consisting of
A display plate that is rotatably supported in a horizontal plane in the head portion, and displays a switching state of the flow path in a see-through window provided in the head portion;
A slide formed by a long hole provided in one of the display plate and the push button and a pin provided in the other and fitted into the long hole, and rotates the display plate in a horizontal direction in conjunction with the stroke of the push button. A water faucet comprising a push switch display device having a head portion.   The faucet according to claim 1, wherein the switch mechanism has a valve that switches the flow path by selecting any one flow path according to a stop position of the push button and opening the valve.   2. The switch mechanism according to claim 1, wherein the switch mechanism includes a valve that switches between the two flow paths by opening and closing a flow path with a small pressure loss among the two flow paths according to the stop position of the push button. Water faucet.   The faucet according to any one of claims 1 to 3, wherein the long hole of the slide portion is formed in a straight line shape extending outward in the radial direction from the vicinity of the rotation center portion of the display plate. .   The faucet according to any one of claims 1 to 3, wherein a long hole of the slide portion is formed in a U-shape from the vicinity of the rotation center portion of the display plate to the outside.   6. A relief part having a hole width wider than the diameter of the pin is formed at a position where the pin abuts at a shallow stop position of the push button. Water faucet.

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