JP2007007026A - Shower head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly usable shower head improving the aesthetic appearance and surely stopping water even when discharging hot water, in a shower head having a water discharge/stop mechanism. <P>SOLUTION: This shower head 10 is provided with a grip part 11 formed with a space 12 in its inside, and a head part 21 formed at the tip of the grip part 11 and having a changeover chamber 22 in its inside; the space in the grip part 11 is inserted with an insertion tube 13 into a double tube shape; the changeover chamber 22 is inserted with a covering material 25; the insertion tube 13 and the covering material 25 are connected to form a hot water channel; the circumferential faces of the grip part 11 and the head part 22 are plated; the insertion tube 13 stores the water discharge/stop mechanisms 50 discharging and stopping the hot water to be discharged; and the covering material 25 stores a channel changeover mechanism 31 changing over the discharge mode of the hot water to be discharged. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shower head capable of switching hot water to a water discharge state or a water stop state by operating a button.

  In a shower head used in a sink or a bathroom, a known shower head that can switch hot water to a water discharge state or a water stop state by operating a button is disclosed in Patent Document 1. is there.

Briefly describing Patent Document 1, in a shower head capable of switching hot water to a water discharge state or a water stop state by operation of a button, the shower head has an internal flow path as a primary flow path by a partition wall. The secondary flow path is divided into a secondary flow path, and a water discharge mechanism is installed that allows the hot water to be switched to either the water discharge state or the water stop state each time the button is pushed from the secondary flow path to the primary flow path. The water stop mechanism is provided with a safety valve capable of communicating the primary flow path and the secondary flow path when the water pressure in the primary flow path rises to a set value or more when water stops.
JP 2000-282526 A

  By the way, in this kind of shower head, in addition to the function of switching hot water to either the water discharge state or the water stop state by operating a button, there is a request to produce a high-class feeling and improve the aesthetics. Therefore, plating is performed on the surface of the shower head. Therefore, when the surface of the head main body is plated with respect to the shower head of Patent Document 1, the hollow head main body is plated on the outer surface and inner surface, and the inner space is plated on the inner surface. In this state, it is used as it is as a flow path through which hot water passes.

  In addition, since this type of shower head is generally formed of a synthetic resin, when the hot water is discharged using a shower head in which the surface of the head body is plated, the shower head is heated by the heat. Strain and deformation are likely to occur. For this reason, when the shower head of Patent Document 1 is plated, the plating is easily peeled off from the surface by the hot water discharge, and the peeled plating piece flows together with the hot water and adheres to the packing of the water discharge mechanism. There is a fear. If the plated piece adheres to the packing, there is a possibility that the water cannot be reliably stopped even if the water stop operation is performed by operating the button. In this case, the shower head must be disassembled, the packing must be cleaned, and the plated pieces must be removed, which is cumbersome and time consuming. Also, there is a risk that parts may be lost while disassembling the shower head. Furthermore, the shower head is enlarged because it has a water discharge mechanism for discharging and stopping hot water at the end of the shower head, and a valve body and lever for switching the water discharge form to DC water or water spray. , It was inconvenient.

  The present invention has been made paying attention to such problems existing in the prior art, and its purpose is to improve the aesthetics of the shower head equipped with a water discharge mechanism and to discharge hot water. Even so, it is possible to provide a shower head that can reliably stop water and is more convenient to use.

  In order to achieve the above object, a shower head according to a first aspect of the present invention includes a grip portion in which a space is formed and a head portion that is formed at a tip of the grip portion and in which a switching chamber is provided. An insertion cylinder is inserted into the space of the gripping portion in a double tubular shape, a covering material is inserted into the switching chamber, and a hot water flow path is formed by connecting the insertion cylinder and the covering material. The peripheral surface of the head portion and the head portion are plated, and the insertion tube contains a water stop mechanism for performing a water stop operation for the hot water discharged, and the covering material discharges the hot water discharged. The flow path switching mechanism for switching the form is accommodated.

  According to a second aspect of the present invention, in the shower head according to the first aspect of the present invention, the water discharge mechanism and the flow path switching mechanism are both linked to a push-in button.

  In claim 1 of the present invention, since the hot water discharged through the shower head is configured not to contact the inner peripheral surface of the grip portion and the head portion, even if the plating applied to the surface of the shower head is peeled off, The plating piece does not flow into the water stop mechanism housed inside the gripping portion, and water can be reliably stopped even if hot water is discharged. Moreover, since the shower head is plated, the aesthetic appearance can be improved. Furthermore, since the water discharge mechanism is housed in the grip portion and the flow path switching mechanism is housed in the head portion, the head portion can be formed more compactly compared to the conventional case, and the usability can be improved. it can.

  In the second aspect of the present invention, in the shower head according to the first aspect of the present invention, both the water discharge mechanism and the flow path switching mechanism are unified to the operation by the push button, so there is no trouble in the switching operation.

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

FIG. 1 is an overall view of a state in which a faucet A using a shower head 10 of the present invention is mounted in a bathroom B.
The faucet A is attached to the wall surface C of the bathroom B via the hot water supply pipe 1 and the water supply pipe 1 a, and the mixing valve 2 a is provided inside the main body 2, and a temperature provided at one end of the main body 2. By operating the adjustment handle 3, the hot water and water supplied from the hot water supply pipe 1 and the water supply pipe 1a are mixed to a desired temperature, and the flow adjustment handle 3a provided at the other end of the main body 2 is operated. The mixed hot water is discharged from either the water discharge pipe 4 attached to the approximate center of the main body 2 or the shower head 10 connected via the hose 5 attached between the supply pipes 1 and 1a. It is what is done.

  As shown in FIG. 2, the shower head 10 has a hollow shape formed of a synthetic resin, and a cylindrical grip portion 11 and a head portion 21 provided at the tip of the grip portion 11 are integrally formed. A space 12 is formed inside the grip portion 11, and a switching chamber 22 is formed inside the head portion 21. Moreover, the shower head 10 has excellent corrosion resistance such as nickel chrome on the surface thereof, and is plated to produce a high-class feeling.

  The switching chamber 22 is formed with an opening 23 in the lower portion, and a covering material 25 that can cover the inner peripheral wall of the switching chamber 22 is mounted from the opening 23. The covering material 25 has a hollow shape, and a flow path switching mechanism 31 for switching the water discharge form discharged from the head portion 21 is accommodated, and a water spray plate 27 for partitioning the flow path is provided at a lower portion thereof. 26 is attached.

  The water spray plate 27 has a disk shape made of synthetic resin and is detachably attached to the covering material 25. A DC hole 28 is formed at the center thereof, and a number of small holes are formed on the outer periphery of the DC hole 28. An annular sprinkling hole 29 made of is formed.

  The flow path switching mechanism 31 is housed in the head portion 21 by the covering material 25, and the water discharge form of hot water discharged from the water spray plate 27 is changed from the DC hole 28 by repeating the pushing operation of the switching button 32. It is switched to either direct current water discharged or water spray discharged from the water spray hole 29.

  The switching button 32 is interposed in a lateral hole 24 formed on the side surface of the head portion 21 so that a part of the switching button 32 protrudes to the outside, and a spring 35 is provided on a holding portion 34 of the switching shaft 33 connected to the switching button 32. The valve body 36 is accommodated via the. The valve body 36 is pressure-bonded to the periphery of a first water discharge hole 26 a formed in the flow dividing material 26 and communicating with the DC hole 28 or a second water discharge hole 26 b communicating with the water spray hole 29. The switching shaft 33 is linked to a known latch mechanism 43, and the valve body 36 moves each time the switching button 32 is pressed. The valve body 36 is either the first water discharge hole 26a or the second water discharge hole 26b. One is closed and the other is open.

An insertion tube 13 is inserted into the space 12 of the grip portion 11.
The insertion tube 13 has a cylindrical shape made of synthetic resin, and the water pipe 6 bent halfway is connected to the covering material 25. The water pipe 6 is provided with sealing members 8 on the flanges 7 formed at both ends, and is connected to the insertion tube 13 and the covering member 25 so as to maintain a watertight state. Note that the insertion tube 13 and the covering material 25 may be directly connected without providing the water pipe 6 therebetween. Accordingly, the hot water supplied from the faucet A to the shower head 10 through the hose 5 passes through the inside of the insertion tube 13 and the water pipe 6 inserted in the double tubular shape inside the shower head 10 and is switched. Water is discharged in either a direct current or water spray form by the flow path switching mechanism 31 that is supplied to the chamber 22 and accommodated in the covering material 25.

  The insertion cylinder 13 is accommodated with a water stop mechanism 50 between the hose 5, and the interior of the insertion cylinder 13 is partitioned into a primary flow path L 1 and a secondary flow path L 2 by the discharge water mechanism 50. Has been. The spouting water mechanism 50 includes a flush valve as an on-off valve, and has a case body 51 between the primary side flow path L1 and the secondary side flow path L2, as shown in FIG. The case body 51 has a hollow shape, and an inflow port 51a and an outflow port 51b are formed between the primary side flow path L1 and the secondary side flow path L2, respectively, and the first valve body 52 slides therein. It is provided freely. The first valve body 52 comes in contact with and separates from the first seat portion 51c formed in the case body 51, and a through hole 53 is formed in the axial center thereof. The case body 51 has a pressure chamber P1 formed between a lid 51d screwed to the opposite side of the first seat portion 51c and the first valve body 52. The pressure chamber P1 is connected to the first valve body 52. It communicates with the primary flow path L1 through the formed communication hole 54 and the inflow port 51a. Further, a second valve body 56 is provided in the through hole 53 of the first valve body 52 so as to be relatively slidable, and between the through hole 53 of the first valve body 52 and the outer peripheral surface of the second valve body 56. A gap 57 is formed. In the pressure chamber P1, a first spring 58 is interposed between a large-diameter portion 56a formed at the tip of the second valve body 56 and the lid 51d, and the first spring 58 is connected to the second valve body 56. The large-diameter portion 56a is urged toward the second seat portion 55 attached to the first valve body 52. A cleaning pin 59 is inserted into the communication hole 54 of the first valve body 52, and the cleaning pin 59 moves up and down the communication hole 54 to prevent foreign matter from adhering to the communication hole 54. ing.

  A cover 42 is attached to the outer peripheral surface of the insertion tube 13. This cover 42 is attached to the insertion tube 13 through an insertion hole 11b drilled in the outer peripheral surface of the gripping part 11, and a water stop button 41 for opening and closing the water stop mechanism 50 is attached. . A known latch mechanism 43 a is accommodated in the cover 42, and the latch mechanism 43 a is connected to the water discharge button 41. The spouting water button 41 is connected to the operation shaft 44 and the latch mechanism 43 a, and the distal end of the operation shaft 44 is in contact with the distal end of the second valve body 56 in the vertical direction inside the insertion tube 13. And every time the pushing operation of the water stop button 41 is repeated by the action of the latch mechanism 43a, the operation shaft 44 linked to the water stop button 41 pushes and moves the second valve body 56 of the water stop water mechanism 50, As for the 2nd valve body 56, the large diameter part 56a is alternately arrange | positioned in the position closely_contact | adhered to the 2nd sheet | seat part 55 with which the 1st valve body 52 was mounted | worn, and the position pushed into the lid | cover 51d side. In this case, in the water stop state, the first valve body 52 is moved to the first seat portion 51c and the large diameter portion 56a of the second valve body 56 is moved by the pressure water in the pressure chamber P1 and the elastic force of the first spring 58. The second sheet portion 55 is in close contact with the second sheet portion 55.

  In such a water stop state, if the spout water button 41 is pushed in from the lower part of the shower head 10, the operation shaft 44 connected to the spout water button 41 is connected to the insertion tube 13 as shown in FIG. It is held in a state where it is pushed inside. At this time, the second valve body 56 of the spouting water mechanism 50 was pushed and moved into the pressure chamber P <b> 1 with the large-diameter portion 56 a being separated from the second seat portion 55 of the first valve body 52 by the operation shaft 44. It becomes a state. As a result, the communication passage 54 of the first valve body 52 and the gap 57 formed between the through-hole 53 of the first valve body 52 and the outer peripheral surface of the second valve body 56 are connected to the primary side flow path L1 by 2. A small amount of hot water flows into the secondary flow path L2. For this reason, the water pressure in the pressure chamber P <b> 1 decreases, and the first valve body 52 moves away from the first seat portion 51 c of the case body 51 to the open side and enters a water discharge state.

  Further, when the spout water button 41 is pushed in this state, the large-diameter portion 56a of the second valve body 56 is moved to the first valve body 52 by the elastic force of the first spring 58 as shown in FIG. The second sheet portion 55 is in close contact with the second sheet portion 55. Then, due to the water pressure flowing into the pressure chamber P <b> 1 through the communication hole 54 of the first valve body 52, the first valve body 52 comes into close contact with the first seat portion 51 c of the case body 51 and enters a water stop state.

  As described above, in the present invention, the shower head has a double tubular shape in which the insertion tube is inserted into the space of the gripping portion, and the shower water mechanism is inserted into the insertion tube through which hot water passes. Even if the plating applied to is peeled off, the plated piece does not adhere to the water stop mechanism accommodated in the insertion tube, and the hot water can be reliably stopped. Moreover, since the surface of the shower head is plated, the beauty can be improved. Furthermore, since the flow path switching mechanism is housed inside the head part, and the water discharge mechanism is housed inside the grip part of the shower head, the head part can be formed more compactly and easier to use. Can be improved. Moreover, since both the water discharge mechanism and the flow path switching mechanism are unified with the operation by the push button, there is no trouble in the switching operation.

  4 and 5 show a shower head according to a second embodiment of the present invention. The shower head according to the second embodiment is different from the shower head according to the first embodiment only in the structure of the water discharge mechanism. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. .

  In the shower head 10a of the second embodiment, the spouting water mechanism 60 causes the primary side flow path L1 and the secondary side flow path L2 to communicate with each other when the water pressure in the primary side flow path L1 at the time of water stop is extremely high. As shown in FIG. 4, a case body 61 is provided between the primary side flow path L1 and the secondary side flow path L2. The case body 61 has a hollow shape and is formed with an inflow port 61a that communicates with the primary side flow path L1 and an outflow port 61b that communicates with the secondary side flow path L2, respectively, with a second spring 67 interposed therebetween. The third valve body 62 is provided so as to be capable of relative sliding. The third valve body 62 is in contact with and away from the outlet 61b. One end of the third valve body 62 is accommodated in the secondary flow path L2 and is perpendicular to the operation shaft 44 connected to the spouting water button 41. It is in contact. Further, a valve chamber 63 is formed at the other end of the third valve body 62, and a lid body 65 is screwed to the end portion thereof. A water passage hole 66 is formed in the lid 65 in the axial direction, and the primary side flow path L1 and the valve chamber 63 communicate with each other through the water passage hole 66. A small hole 64 having a T-shaped cross section is formed in the axial center of the valve chamber 63, and the valve chamber 63 and the secondary side flow path L <b> 2 communicate with each other through the small hole 64. A ball valve 68 for opening and closing the water passage hole 66 is accommodated in the valve chamber 63, and the ball valve 68 is urged toward the water passage hole 66 by a third spring 69 accommodated in the valve chamber 63. Has been.

  In the shower head 10a of the second embodiment, when the hot water passing through the primary flow path L1 is normal water pressure, the ball valve 68 closes the water passage hole 66 of the lid 65 by the elastic force of the third spring 69. However, if for some reason the water pressure in the primary side flow path L1 rises to overcome the spring load of the third spring 69, the ball valve 68 moves as shown in FIG. Then, by separating from the lid 65, hot water in the primary side flow path L 1 is supplied to the valve chamber 63 from the water passage hole 66 of the lid 65.

  And since the hot water supplied to the valve chamber 63 is supplied to the secondary side flow path L2 from the small hole 64 of the 3rd valve body 62, and is discharged outside from the water spray plate 27 of the head part 21, the hose 5 and It is possible to prevent an excessive increase in the water pressure in the shower head 10a.

  In this state, when the spout water button 41 is pushed in from the lower part of the shower head 10a, the operation shaft 44 linked to the spout water button 41 is held in a pushed state, as shown in FIG. . At this time, the third valve body 62 of the water spouting mechanism 60 is separated from the outlet 61b of the case body 61 by the operation shaft 44 and enters a water discharging state.

  In addition, when the spout water button 41 is pushed in this state, the third valve body 62 of the spout water mechanism 60 closes the outlet 61b by the elastic force of the third spring 69, as shown in FIG. Then, the water stops.

  Thus, in the second embodiment of the present invention, in addition to the effects of the first embodiment, the flow path of the hose and the primary flow path of the shower head are maintained below a certain water pressure, and high pressure water is applied to the hose and the shower head. It is possible to prevent damage to internal parts, water leakage, and the like caused by the addition.

  6 and 7 show a shower head according to a third embodiment of the present invention. The shower head according to the third embodiment is different from the shower head according to the first embodiment in that the water discharge prevention mechanism is provided in the water discharge prevention mechanism. Is omitted.

  The shower head 10b has a hollow shape formed of a synthetic resin, and a cylindrical gripping portion 11a and a head portion 21a formed at the tip of the gripping portion 11a are separately formed. The gripping portion 11a and the head The part 21 a is connected by a stopper 14. The surfaces of the gripping portion 11a and the head portion 21a are plated with excellent corrosion resistance such as nickel chrome to produce a high-class feeling.

  The head portion 21a has a switching chamber 22 formed therein, and an opening 23 is formed in the lower portion of the switching chamber 22 so that the inner peripheral wall portion of the switching chamber 22 can be covered from the opening 23. A material 25 is mounted. Inside the covering material 25 is housed a flow path switching mechanism 31 for switching the form of hot water discharged from the head portion 21a, and a flow dividing mechanism 26 for partitioning the hot water flow path is provided below the flow path switching mechanism 31. A water spray plate 27 is attached.

  The grip portion 11a has an elongated cylindrical shape, and a space 12a is formed therein, and insertion cylinders 13a and 13b are inserted into the space 12a. In the insertion cylinders 13a and 13b, seal members 16 are respectively attached to the flange portions 15 formed at both ends, and the water-discharging mechanism 70 and the covering material 25, which will be described later, and the water-discharging mechanism 70 and the hose 5 are maintained in a watertight state. Are connected to each other. Accordingly, the hot and cold water supplied to the shower head 10b passes through the inside of the insertion cylinders 13a and 13b mounted in the double tubular shape inside the shower head 10b and is supplied to the switching chamber 22, and the flow path switching mechanism 31 is thus supplied. The water is discharged in either a direct current or watering form. Between the two insertion cylinders 13a and 13b, a water stop mechanism 70 is accommodated, and by this water stop mechanism 70, the inside of the grip portion 11a is divided into a primary side flow path L1 and a secondary side flow path L2. Has been. The spouting water mechanism 70 communicates with the hose 5 via the first insertion cylinder 13a and also communicates with the covering material 25 via the second insertion cylinder 13b. Moreover, the primary side flow path L1 and the secondary side flow path L2 are divided by the water discharge mechanism 70.

  The water discharge mechanism 70 functions as an on-off valve, and has a case body 71 as shown in FIG. The case body 71 has a hollow shape, and an inflow port 71a and an outflow port 71b are formed therein, and a fourth valve body 72 is provided through a fourth spring 76 therein. The fourth valve body 72 comes in contact with and separates from the valve port 71c formed in the case body 71. The fourth valve body 72 has a through hole 73 formed in the axial center thereof and is opposite to the fourth spring 76 disposed therein. A cutout groove 74 with a part cut away is formed at the end on the side. On the side where the fourth spring 76 is disposed, a pressure chamber P2 is formed between the fourth valve body 72 and the case body 71, and the pressure chamber P2 is a communication formed in the fourth valve body 72. It communicates with the primary channel L1 through the hole 73a. A fifth valve body 77, which is a water hammer prevention means, is provided in the through hole 73 of the fourth valve body 72 so as to be slidable relative to the through hole 73. The fourth valve body 72 has a through hole 73 and a fifth valve body 77. A gap 78 is formed between them. A fifth spring 79 is interposed between the fifth valve body 77 and the pressure chamber P <b> 2, and the fifth spring 79 faces the third seat portion 75 formed in the fourth valve body 72. 77 is energized.

  The water stop mechanism 70 is connected to a water stop button 41 for opening and closing the valve bodies 72 and 77, and a known latch is provided inside the cover 42 that supports the water stop button 41. A mechanism 43a is interposed. Then, by the action of the latch mechanism 43a, every time the spouting water button 41 is pushed in, the operation shaft 44 linked to the spouting water button 41 pushes and moves the fifth valve body 77. It arrange | positions alternately in the position closely_contact | adhered to the valve opening 71c of the body 71, and the position pushed in to the pressure chamber P2 side. In this case, in the water stop state, the fourth valve body 72 closes the valve port 71c by the water pressure in the pressure chamber P2 and the elastic force of the fifth spring 79, and the fifth valve body 77 is the fourth valve body 72. The third sheet portion 75 is in close contact with the third sheet portion 75.

  In this state, if the spout water button 41 is pushed in, the operation shaft 44 linked to the spout water button 41 is held in the pushed state, as shown in FIG. At this time, the fifth valve body 77 is separated from the third seat portion 75 of the fourth valve body 72 by the operation shaft 44 and is pushed into the pressure chamber P2. Then, the small amount of the communication hole 73a of the fourth valve body 72, the gap 78 formed between the through hole 73 of the fourth valve body 72 and the fifth valve body 77, and the notch groove 74 of the fourth valve body 72 are sequentially increased in a small amount. The hot water flows, that is, when a small amount of hot water flows from the primary side channel L1 to the secondary side channel L2, the water pressure in the pressure chamber P2 decreases. For this reason, the 4th valve body 72 moves to the direction which opens the valve opening 71c, and will be in a water discharge state.

  Further, when the spout water button 41 is pushed in this state, the fifth valve body 77 is moved by the elastic force of the fifth spring 79 to the third seat portion 75 of the fourth valve body 72 as shown in FIG. It will be in the state which adhered to. And the 4th valve body 72 obstruct | occludes the valve opening 71c with the water pressure which flowed into the pressure chamber P2 through the insertion hole 73a of the 4th valve body 72, and will be in a water stop state.

  As described above, in the present invention, the shower head is configured to have a double tubular shape, and even if the plating applied to the shower head is peeled off, the plating piece is not attached to the water discharge mechanism stored in the insertion tube. Without stopping, the hot water can be surely stopped. Moreover, since the shower head is plated, the aesthetic appearance can be improved. Furthermore, since the water stop mechanism does not stop water instantaneously at the time of water stop, but stops water in two stages, the occurrence of water hammer can be prevented.

It is explanatory drawing at the time of using the shower head of this invention as a shower head for bathrooms. It is sectional drawing which shows the 1st Example of this invention. It is a principal part enlarged view of the water discharge mechanism in FIG. 2, (a) is a water discharge state, (b) is a water stop state. It is sectional drawing which shows the 2nd Example of this invention. It is a principal part enlarged view of the water discharge mechanism in FIG. 4, (a) is a water discharge state, (b) is a water stop state, (c) is the state which the safety valve act | operated. It is sectional drawing which shows the 3rd Example of this invention. It is a principal part enlarged view of the water discharge mechanism in FIG. 6, (a) is a water discharge state, (b) is a water stop state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Shower head 11: Grasping part 12: Space 13: Insertion cylinder 21: Head part 22: Switching chamber 25: Coating material 31: Flow path switching mechanism 50: Stop water mechanism

Claims (2)

  It has a grip part in which a space is formed inside, and a head part formed at the tip of the grip part and provided with a switching chamber inside, and an insertion cylinder is inserted into the space of the grip part in a double tubular shape, A coating material is inserted into the switching chamber, and a flow path of hot water is formed by connecting the insertion tube and the coating material. The peripheral surfaces of the gripping portion and the head portion are plated, and water is discharged into the insertion tube. A shower head characterized in that a water stop mechanism for performing a hot water discharge operation is housed, and a flow path switching mechanism for switching a water discharge form of the hot water to be discharged is housed in the covering material. The shower head according to claim 1, wherein each of the water discharge mechanism and the flow path switching mechanism is connected to a push-in button.

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