JP2008133712A - shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower head capable of switching a water discharge form with a light operation force with respect to a push button.
An operation member 32 is held at either of two front and rear positions by operating a push button 12 so that hot water can be switched to be discharged from either a first water discharge portion 38 or a second water discharge portion 39. In the shower head A, a water passage 18 through which hot water passes is formed in the storage chamber 16 of the main body 10, and the first valve seat 47 and the second valve seat 48 are opposed to each other on the secondary side of the water passage 18. The switching member 31 and the operating member 32 are connected by a rod 42, and a valve body 49 attached to the rod 42 is movably disposed between a first valve seat 47 and a second valve seat 48. Thus, the flow path through which hot water is discharged can be switched to either the first water discharge portion 38 or the second water discharge portion 39, and the rod 42 is a valve element between the valve seats 47 and 48 when the push button 12 is operated. Provided with auxiliary means 43 for assisting movement of 49 .
[Selection] Figure 2

Description

  The present invention relates to a shower head used in a sink, a vanity, a bathroom, and the like, and more particularly, to a shower head that can switch a water discharge flow to any one of a plurality of discharge forms such as direct current water or shower water. Is.

  Conventionally, as this type of shower head, for example, a structure as disclosed in Patent Document 1 is known.

  That is, in the shower head of Patent Document 1, a tubular partition wall is provided in the fountain portion of the shower head in the front-rear direction, and the interior of the fountain portion is connected to the interior of the wall leading to the water supply channel and the front end by the partition wall. It is divided into a wall exterior having a perforated plate for shower, and the front part inside the wall is a water discharge path, and the rear part is a communication path leading from the inside of the wall to the outside of the wall, and the water discharge path and the communication path are formed inside the wall. A switching valve that opens and closes is arranged.

Japanese Utility Model Publication No. 58-195659

  In Patent Document 1, the switching of the flow path between the direct current water that has passed through the water discharge channel and the shower water that has passed through the shower multi-plates from the outside of the wall is performed by pressing the pressing member, but the shower water is discharged. In this state, the water supply pressure from the water supply passage is applied to the valve body of the switching valve, and the valve body is more strongly pressed against the valve seat as the water supply pressure increases. In such a state, even if the hot water flow path is switched from shower water to direct current water, the valve body cannot be moved away from the valve seat due to the high water supply pressure from the water supply path. Switching could not be performed smoothly.

  This invention was made paying attention to the problem which exists in such a prior art, The objective is to provide the shower head which can switch a water discharge form with the light operation force with respect to a push button. There is.

  In order to achieve the above object, according to the first aspect of the present invention, a main body having a housing chamber formed therein, a water outlet provided in the main body and having a plurality of water discharging portions for discharging hot water to the outside, and the housing An operation member comprising a switching member that is mounted on the chamber and that switches the water discharge form of hot water discharged from the water outlet, an operation member that is linked to the switching member, and a holding mechanism that holds the operation member at any one of the front and rear positions. In the shower head that can be switched so that hot water is discharged from either the first water discharge portion or the second water discharge portion of the water discharge port by operating a push button provided in the hot water, the hot water passes through the storage chamber. A water passage is formed, the first valve seat and the second valve seat are formed in the water passage so as to face each other, the switching member and the operation member are connected by a rod, and a valve body attached to the rod is provided. The first valve seat and the second valve seat It is possible to switch the flow path through which hot water is discharged to either the first water discharge part or the second water discharge part by disposing the rod between the valve seats when operating the push button. An auxiliary means for assisting the movement of is provided.

  In the invention of claim 2, a main body having a storage chamber formed therein, a water outlet provided in the main body and having a water discharge portion for discharging hot water to the outside, and hot water from the water discharge portion mounted in the storage chamber A push button provided on the operation member, comprising a switching member for switching the water to water discharge or water stop, an operation member linked to the switching member, and a holding mechanism for holding the operation member at any of the two front and rear positions In the shower head in which the hot water can be switched to either water discharge from the water discharge portion or water stop by the operation of the above, a water passage through which the hot water passes is formed in the storage chamber, and the water passage has a first valve seat and The second valve seat is formed so as to face each other, the switching member and the operation member are connected by a rod, and a valve body mounted on the rod is freely movable between the first valve seat and the second valve seat. The hot water from the water discharge part Can be switched to either the water or water stop rod is characterized in that an auxiliary means for assisting the movement of the valve body of both valve seats when the push button operation.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the rod is provided with a pressure receiving surface facing the water passage of the storage chamber at one end thereof, and the pressure receiving surface is an auxiliary means. .

  According to the first aspect of the present invention, the operation member is held at either of the front and rear positions by operating the push button, and hot water is discharged from either the first water discharge portion or the second water discharge portion of the water discharge port. In the shower head that can be switched in this way, the water discharge mode can be switched well even when hot water is discharged.

  According to the second aspect of the present invention, in the shower head, the operation member is held at any one of the two front and rear positions by the operation of the push button, and the hot water can be switched to either water discharge from the water discharge portion or water stop. Even when the hot water is stopped, the switching operation to the water discharge position can be performed satisfactorily.

  According to the third aspect of the present invention, the flow path can be switched with a simple structure of the switching member.

  Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the faucet 2 to which the shower head A of the present invention is attached is mounted on the upper surface of a sink 1, for example, and an operation lever 3 is projected from the upper end thereof. Then, by rotating the operation lever 3 in the left-right direction around the vertical axis, the mixing ratio of hot water and water is changed and the temperature of the hot water is adjusted. Moreover, the opening and closing of the hot water and the adjustment of the flow rate are performed by rotating the operation lever 3 up and down around the horizontal axis.

  A water discharge port 11 projects from the lower end of the shower head A, and a push button 12 that can be pushed is disposed on the front surface of the front end. Each time the push button 12 is pushed, the hot water discharged from the water discharge port 11 is alternately switched between the direct current water from the first water discharge unit 38 and the shower water from the second water discharge unit 39. It is supposed to be.

  Next, the configuration of the shower head A will be described in detail. As shown in FIGS. 2 and 3, the shower head A has a body 10 with a horizontally long, substantially cylindrical shape, a rear opening 13 formed on the back, a front opening 14 formed on the front, and a bottom on the bottom. A bottom side opening 15 is formed, and a storage chamber 16 is formed inside. The back side opening 13 and the front side opening 14 are opened so as to face each other, and the bottom side opening 15 is located between the back side opening 13 and the front side opening 14 from the bottom surface of the main body 10 to the accommodation chamber. Opening in the vertical direction toward 16.

  A substantially cylindrical support member 17 is attached to the inner peripheral surface of the back side opening 13 of the main body 10. The support member 17 has a female threaded portion 17a formed on the inner peripheral surface of a substantially intermediate portion, and a water passage 18 through which hot water passes is formed at the tip thereof. A partition wall 19 is formed in the water passage 18 in the axial direction, and the water passage 18 is partitioned into a first flow path 20 and a second flow path 21 by the partition wall 19.

  The connecting member 23 is joined to the outer peripheral surface of the tip of the hose 22 having plasticity, and the male screw portion 23a formed on the outer peripheral surface of the connecting member 23 is screwed into the female screw portion 17a of the support member 17, The hose 22 is connected to the shower head A. The other end of the hose 22 is connected to a hot water mixing mechanism (not shown) in the faucet 2. And the hot water of the predetermined temperature adjusted with the hot water mixing mechanism is supplied to the water flow path 18 of the support member 17 through this hose 22. The shower head A can be pulled out from the faucet 2 together with the hose 22.

  A flow path switching mechanism 30 is mounted in the storage chamber 16 of the shower head A from the front side opening 14 and the bottom side opening 15. The flow path switching mechanism 30 includes a switching member 31 and an operation member 32, and a hose communicates with the first flow path 20 formed in the support member 17 between the support member 17 and the switch member 31. A third flow path 33 through which hot water supplied from 22 passes is formed. The switching member 31 is attached from the bottom side opening 15 formed on the bottom surface of the shower head A, and the operation member 32 is attached to the storage chamber 16 from the front side opening 14 formed on the front of the shower head A, The support member 17, the switching member 31, and the operation member 32 are joined in a watertight manner through the packings 34 in the storage chamber 16.

  The switching member 31 has a switching chamber 36 formed inside the case 35, and the switching chamber 36 is connected to the tip of the support member 17. The support member 17 and the switching member 31 are coupled and supported. Due to the partition wall 19 of the member 17, a flow path through which hot water passes is the third flow path 33 communicating with the first flow path 20, and a fourth flow communicating with the third flow path 33 and the second flow path 21. It is divided into a road 37.

A first water discharge portion 38 is formed at the center of the water discharge port 11, a second water discharge portion 39 is formed around the first water discharge portion 38, and a rectifier 38 a is attached to the first water discharge portion 38. Water is discharged and shower water is discharged because the plurality of small holes 39a are formed in the second water discharge portion 39 in an annular shape. The fourth flow path 37 and the second water discharge section 39 communicate with each other through the outer flow path 40, and the second flow path 21 and the first water discharge section 38 communicate with each other through the inner flow path 40a. Accordingly, the hot water supplied from the hose 22 to the third flow path 33 is moved from either the first water discharge section 38 or the second water discharge section 39 by the movement of the operation member 32 disposed in the fourth flow path 37. Water is discharged.
In addition, the water discharge form of the hot water supplied from the 1st water discharge part 38 and the 2nd water discharge part 39 is not limited to the direct-current water and shower water of a present Example, For example, what kind of foam form, massage form, etc. Form may be sufficient.

  The operation member 32 includes a rod 42, a push button 12, and a holding mechanism 44. The rod 42 is inserted into and supported by the fourth flow path 37 so as to be movable back and forth. An annular groove 45 is formed at one end of the rod 42, and a locking tool 46 is attached to the annular groove 45. It is formed in a disk shape larger in diameter than the rod 42. The other end of the rod 42 is movably disposed in the second flow path 21, and the tip thereof faces the water passage 18, and a pressure receiving surface as auxiliary means for assisting the movement of the rod 42 in accordance with the operation of the push button 12. 43 is formed.

  The support member 17 and the switching member 31 are formed with a first valve seat 47 and a second valve seat 48 so as to face each other in the fourth flow path 37, and the first valve seat 47 and the second valve seat 48 are formed. A valve body 49 mounted on the outer peripheral surface of the rod 42 is arranged between the seat 48 and the valve body 49 can be brought into contact with and separated from the first valve seat 47 or the second valve seat 48. The rod 42 is inserted into the second flow path 21 and the fourth flow path 37 with one end thereof being urged by the first spring 50, and the entire pressure receiving surface 43 formed at the tip of the rod 42 passes through the support member 17. Facing waterway 18. Therefore, when hot water is discharged from the water outlet 11, the pressing force from the water passage 18 to the pressure receiving surface 43 of the rod 42 increases as the hot water supply pressure passing through the water passage 18 increases.

  A holding mechanism 44 is disposed between the rod 42 and the push button 12. The holding mechanism 44 is a conventionally known mechanism that holds the push button 12 and the rod 42 at either one of the front and rear positions by pressing the push button 12. The push button 12 is disposed between the switching member 31. When the push button 12 is pressed, the holding mechanism 44 is pressed against the urging force of the second spring 51 when the push button 12 is pressed. A hole 52 through which the rod 42 is inserted is formed in the holding mechanism 44, and a flange portion 53 that engages with a locking tool 46 attached to the rod 42 is formed on the outer peripheral surface of the hole 52. Therefore, when the holding mechanism 44 moves from the state of FIG. 3 to the left side as shown in FIG. 2 by the pressing operation of the push button 12, the flange portion 53 of the holding mechanism 44 is engaged with the locking member 46 of the rod 42. Therefore, the rod 42 also moves to the left.

Next, the operation of the shower head A configured as described above will be described.
In the shower head A shown in FIG. 2, the push button 12 is disposed at the front position from the main body 10 and is held at that position by the holding mechanism 44. In this state, the hot water discharge channel is switched to the second water discharge unit 39 side by the switching member 31. Therefore, in this state, when the operation lever 3 of the faucet 2 shown in FIG. 1 is rotated in the left-right direction and is operated in the up-down direction, hot water adjusted to a predetermined temperature and a predetermined flow rate is supplied from the water passage 18. Shower water from a plurality of small holes 39 a that pass through the first flow path 20, the third flow path 33, the fourth flow path 37, and the outer flow path 40 and are formed in the second water discharge portion 39 of the water discharge port 11. Is discharged to the outside.

  In the shower head A in this state, when the discharge channel from the discharge port 11 is switched from the second discharge unit 39 to the first discharge unit 38, when the push button 12 is pressed from the front position, as shown in FIG. In addition, the push button 12 is held in the rear position by the holding mechanism 44 of the operation member 32. Then, along with the pressing operation of the push button 12, the hot water discharge channel is switched to the first water discharge unit 38 side by the switching member 31, and DC water is discharged from the rectifier 38 a of the first water discharge unit 38.

  In this case, in the shower water discharge state shown in FIG. 2, if the hot water discharge flow rate is increased, the hot water supplied from the hose 22 to the shower head A is transferred from the third flow path 33 to the switching chamber 36 by the switching member 31. The valve body 49 is supplied toward the arranged valve body 49, and the valve body 49 presses the first valve seat 47 with high pressure water, so that the valve body 49 does not move with the rod 42 by the urging force of only the second spring 51. There is. In the shower head A of the present invention, hot water passing through the water passage 18 during hot water flow acts toward the pressure receiving surface 43 of the rod 42, and the action is a direction in which the valve body 49 moves away from the first valve seat 47. Therefore, the movement of the valve body 49 is assisted, and the DC water is discharged from the second water discharge portion 39 from which the shower water is discharged through the flow path of hot water discharged from the water discharge port 11 by a light operation by the push button 12. The water discharger 38 can be switched.

  Furthermore, in the case where the hot water discharge channel discharged from the water discharge port 11 is switched again to the second water discharge unit 39 side, when the push button 12 is repeatedly pushed, as shown in FIG. The spring 51 is moved from the rear position to the front position by the urging force of the spring 51 and is held at that position by the holding mechanism 44. And with the movement of the push button 12, the flow path of the hot water is switched from the first water discharge part 38 to the second water discharge part 39 side by the switching member 31. Therefore, shower water is discharged from the second water discharge unit 39 in the same manner as described above.

  As described above, the shower head according to the present invention can easily perform the switching operation of the flow path by the push button even when the hot water is discharged while the supply water pressure is high.

  4 and 5 show a second embodiment of the present invention. The shower head of Example 1 can switch the water discharge form of hot water discharged from the water discharge port by the operation of the push button to one of water discharge from the first water discharge part and water discharge from the second water discharge part. On the other hand, in the shower head of Example 2, it is made to switch to either the water discharge from a water discharge part, or a water stop by operation of a push button.

Hereinafter, only the difference between the shower head B of the second embodiment and the shower head A of the first embodiment will be described in detail. In addition, the same code | symbol is attached | subjected about the structure same as Example 1, and the description is abbreviate | omitted.
In the shower head B of the second embodiment, the switching member 31a has a switching chamber 36a formed inside the case 35a, and the switching chamber 36a is connected to the tip of the support member 17, and the support member 17 and the switching member 31a. And the third flow path 33 through which the hot water passes through the first flow path 20 and the third flow path 33 and the second flow path by the partition wall 31b formed in the switching member 31a. 21 and a fourth flow path 37a communicating with each other via the inner flow path 40a.

  The support member 17 and the case 35a are formed with a first valve seat 47a and a second valve seat 48a so as to face each other in the second flow path 21 and the third flow path 33. The first valve seat A valve body 49 mounted on the outer peripheral surface of the rod 42 is disposed between the 47a and the second valve seat 48a, and the valve body 49 is detachable from the first valve seat 47a or the second valve seat 48a. is there. The rod 42 is inserted into the second flow path 21 and the third flow path 33 with one end thereof being urged by the first spring 50, and the entire pressure receiving surface 43 formed at the tip of the rod 42 passes through the support member 17. Facing waterway 18. Therefore, when hot water is discharged from the water outlet 11a, the pressing force from the water passage 18 to the pressure receiving surface 43 of the rod 42 increases as the hot water supply pressure passing through the water passage 18 increases.

  A water discharge portion 56 is formed at the center of the water discharge port 11 a, and a rectifier 56 a is attached to the water discharge portion 56, so that direct current water is discharged from the water discharge portion 56. Therefore, the hot water supplied from the hose 22 to the third flow path 33 is selected as either water discharge from the water discharge unit 56 or water stoppage by the movement of the operation member 32.

Next, the operation of the shower head B configured as described above will be described.
In the shower head B shown in FIG. 4, the push button 12 is disposed at the front position from the main body 10 and is held at that position by the holding mechanism 44. In this state, the switching member 31 a is switched so that the hot water discharge channel is discharged from the water discharge unit 56. Therefore, in this state, when the operation lever 3 of the faucet 2 shown in FIG. 1 is rotated in the left-right direction and is operated in the up-down direction, hot water adjusted to a predetermined temperature and a predetermined flow rate is supplied from the water passage 18. Direct current water is discharged from the rectifier 56a of the water discharger 56 through the first flow path 20, the third flow path 33, the second flow path 21, the inner flow path 40a, and the fourth flow path 37a.

  In the shower head B in this state, when switching to a water stop position where hot water is not discharged from the water discharge port 11a, when the push button 12 is pressed from the front position, as shown in FIG. Thus, the push button 12 is held at the rear position. As the push button 12 is pressed, the valve body 49 is seated on the first valve seat 47a, and hot water flows from the third flow path 33 to the second flow path 21 and the fourth flow path 37a by the switching member 31a. The road is closed and water is stopped.

  Further, in order to discharge hot water from the water outlet 11a, when the push button 12 is pushed, the push button 12 is moved from the rear position to the front position by the urging force of the second spring 51 as shown in FIG. It is moved and held at that position by the holding mechanism 44. And with the movement of the push button 12, the 3rd flow path 33 and the 2nd flow path 21 are connected by the switching member 31a, and DC water is discharged from the rectifier 56a of the water discharging part 56 outside.

  In this case, in the water stop state shown in FIG. 5, hot water supplied from the hose 22 to the shower head B is supplied from the third flow path 33 to the valve body 49 disposed in the switching chamber 36a by the switching member 31a. Since the valve body 49 presses the first valve seat 47a with high pressure water, the valve body 49 may not move together with the rod 42 by the urging force of only the second spring 51. In the shower head B of the second embodiment, the hot water passing through the water passage 18 acts on the pressure receiving surface 43 of the rod 42 while the hot water is stopped, and the action is such that the valve element 49 moves away from the first valve seat 47a. Therefore, the movement of the valve body 49 is assisted, and the flow path of hot water discharged from the water discharge port 11 by a light operation by the push button 12 can be switched from the water stop position to the water discharged from the water discharge unit 56.

  As described above, the shower head according to the invention of Example 2 can satisfactorily perform the switching operation to the water discharge position by the push button even when the water supply pressure is high and the water is stopped.

It is a side view of the water tap with which the shower head of Example 1 of this invention was attached. It is explanatory drawing at the time of the water discharging from the shower water discharging part of a shower head. It is explanatory drawing at the time of water discharging from the direct current water discharging part of a shower head. It is explanatory drawing at the time of the water discharging from the water discharging part of the shower head of Example 2 of this invention. It is explanatory drawing at the time of the water stop of the shower head of Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Main body 11: Water outlet 12: Push button 16: Accommodating chamber 18: Water flow path 31: Switching member 32: Operation member 38: 1st water discharge part 39: 2nd water discharge part 42: Rod 43: Pressure receiving surface 44: Holding mechanism 47: 1st valve seat 48: 2nd valve seat 49: Valve body A, B: Shower head

Claims (3)

  A main body in which a storage chamber is formed, a water outlet provided in the main body and provided with a plurality of water discharge portions for discharging hot water to the outside, and a water discharge form of hot water attached to the storage chamber and discharged from the water outlet A switching member for switching, an operating member linked to the switching member, and a holding mechanism for holding the operating member at any one of the two front and rear positions, and by operating a push button provided on the operating member, In the shower head that is switchable so that water is discharged from either the first water discharge portion or the second water discharge portion, a water passage through which hot water passes is formed in the storage chamber, and the water passage has a first valve seat and The second valve seat is formed so as to face each other, the switching member and the operation member are connected by a rod, and a valve body mounted on the rod is freely movable between the first valve seat and the second valve seat. The hot water is discharged by being placed in The shower is characterized in that the flow path can be switched to either the first water discharge section or the second water discharge section, and the rod includes auxiliary means for assisting the movement of the valve body between the valve seats when the push button is operated. head.   A main body in which a storage chamber is formed, a water outlet provided in the main body and provided with a water discharge portion for discharging hot water to the outside, and hot water from the water discharge portion mounted in the storage chamber is either discharged or stopped A switching member for switching, an operating member linked to the switching member, and a holding mechanism for holding the operating member at any one of the two front and rear positions. By operating a push button provided on the operating member, hot water is discharged from the water discharger. In the shower head that can be switched to either water discharge or water stoppage, a water passage through which hot water passes is formed in the housing chamber, and the first valve seat and the second valve seat face each other in the water passage. The switching member and the operating member are connected by a rod, and the valve body attached to the rod is movably disposed between the first valve seat and the second valve seat, so that the hot water is Switch to water discharge or water stoppage from water discharge section An ability showerhead, wherein the rod is provided with an auxiliary means for assisting the movement of the valve body of both valve seats when the push button operation.   3. The shower head according to claim 1, wherein the rod has a pressure receiving surface facing one of the water passages of the storage chamber at one end thereof, and the pressure receiving surface is an auxiliary means.

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