JP5495866B2 - Water discharge form switching device and water discharge device provided with the same - Google Patents

Description

  The present invention relates to a water discharge mode switching device that can switch between straight water discharge and shower water discharge and a water discharge device including the same.

  As shown in FIG. 26, the conventional water discharge device described in Patent Document 1 has a cap 102 attached to the shower faucet body 101, and the cap 102 is rotated to switch between straight water discharge and shower water discharge. It can be done.

  That is, a straight water discharge flow path P1 and a shower water discharge flow path P2 are formed in the cap 102, and the valve seat flow path P0 on the upstream side of the cap 102 as shown in FIG. On the other hand, the state is switched between a state in which only the straight water discharge flow path P1 communicates and a state in which only the shower water discharge flow path P2 communicates with the valve seat flow path P0 as shown in FIG. And in the former state, straight water discharge is performed, and in the latter state, shower water discharge is performed, and any water discharge form can be selectively obtained by rotating the cap 102 as necessary. .

  More specifically, as shown in FIG. 29, two cylindrical bodies 104 provided on the cap main body 103 of the cap 102 are fitted with glasses packing 105, and the glasses packing 105 opens the inlet of the straight water discharge flow path P1. It is formed. In a state where the inlet of the straight water discharge flow path P1 corresponds to the two outlets of the valve seat flow path P0 provided in the valve seat 106 on the upstream side of the cap body 103, straight water discharge is performed (FIG. 27). reference).

  If the cap 102 is rotated from this state and the inlet (upper opening of the glasses packing 105) of the straight water discharge channel P1 is closed by the valve seat 106, the cap 102 is placed outside the flange-like portion 107 connected to the cylindrical body 104. The formed shower water discharge channel P2 communicates with the valve seat channel P0. In this state, shower water discharge is performed (see FIG. 28).

  In FIG. 29, reference numeral 108 denotes a nut member which is rotatably attached to the shower faucet body 101 by a split ring (not shown). A cap body 103 is fitted into the nut member 108, and the nut member 108, the cap body 103, and the presser ring 109 are integrated into a rotatable cap 102 by a presser ring 109 that is screwed onto the nut member 108. .

Japanese Utility Model Publication No. 63-126054

  By the way, in such a water discharging apparatus, the cap 102 must be enlarged due to its structure, and it is difficult to make the entire apparatus including the cap 102 compact. The reason for this will be described below.

  As shown in FIG. 29, on the upper surface of the bowl-shaped portion 107, there are provided two cylindrical bodies 104 and a glasses packing 105 attached to the two cylindrical bodies 104 so as to surround them. Further, on the outside of the bowl-shaped portion 107, a shower face plate portion 110 which is formed with a plurality of tapered holes h and which constitutes the shower water discharge flow path P2, is provided continuously, and a cylindrical portion 111 is further provided on the outside.

  Here, the diameter of the cylinder 104 constituting the straight water discharge flow path P1 is not so small because it is necessary to secure the water discharge flow rate at the time of straight water discharge, and the glasses packing 105 attached to the cylinder 104 also has In order to exhibit sufficient sealing performance, a certain edge width must be provided. Due to these restrictions, the distance between the two cylinders 104 becomes large, and it is difficult to make the collar-like portion 107 holding the eyeglass packing 105 attached to the cylinder 104 compact. Furthermore, the shower face plate portion 110 constituting the shower water discharge flow path P2 also needs to secure a water discharge flow rate during shower water discharge, and therefore cannot be made too small.

  Therefore, in the conventional water discharge device, the bowl-shaped portion 107 and the shower face plate portion 110 connected to the outside are difficult to make compact, and the shower face plate portion 110 is not provided outside the shower face plate portion 110. Further, since the cylindrical portion 111 is provided, the cap 102 and thus the entire apparatus cannot be increased in size.

  This invention is made | formed in view of the above-mentioned actual condition, The objective is to provide the water discharge form switching apparatus which can achieve compactization easily, and a water discharge apparatus using the same.

In order to achieve the above object, a water discharge mode switching device according to the present invention is a water discharge mode switching device that switches a discharged water mode between a straight water discharge mode and a shower water discharge mode,
A valve member constituting a water outlet and a water stop provided toward the downstream side;
A water outlet forming portion disposed downstream of the water outlet, and a water outlet for straight water discharge and a shower water outlet for guiding water supplied from the upstream side to the straight water outlet in the water inlet forming portion; A rotating member formed with a water outlet for shower water discharge to lead to
Between the valve member and the water inlet forming portion, the plurality of water outlets are arranged so as to cover the water inlet forming portion, and the straight water outlet and the shower water outlet are not blocked. The water passage hole which has a water passage hole and is not in a position communicating with the water outlet port includes a seal member which is closed by the water stop portion,
The seal member rotates integrally with the rotation member, and with this rotation, the water outlet port communicates with the straight water discharge port via the water flow hole and the straight water discharge port. And the water outlet is switched to a state of communicating with the shower water discharge hole via the water flow hole and the shower water supply water inlet (Claim 1).

  The water discharge mode switching device includes guide means for guiding the valve member so as to move in a direction approaching and separating from the seal member, and biasing means for biasing the valve member in a direction approaching the seal member. (Claim 2).

  In the water discharge mode switching device, the valve member may be configured to be held in a state directed in a specific direction by the guide means.

  In the water discharge mode switching device, a protrusion is provided along the periphery of the water passage hole on the upstream surface of the seal member, or can contact the seal member while surrounding the water passage hole. An elongated protrusion may be provided in the water stop (claim 4).

In the water discharge mode switching device, the water stop portion may be formed in a convex curved shape toward the downstream side (Claim 5).

  In the water discharge mode switching device, a rail extending in a rotating direction of the rotating member is provided on either one of the valve member or the rotating member, and a contact portion that contacts the rail is provided on the other, The valve member is separated from the water inlet forming portion of the rotating member while the water outlet port is in communication with both the straight water outlet and the shower water outlet as the rotating member rotates. As described above, the rail may be provided with an inclined portion inclined in the height direction.

  On the other hand, in order to achieve the above object, a water discharge device according to the present invention includes the water discharge mode switching device according to any one of claims 1 to 6 (claim 7).

  In the invention which concerns on Claims 1-7, the water discharge form switching apparatus which can achieve compactization easily, and the water discharge apparatus using the same are obtained.

  That is, in the inventions according to claims 1 to 7, a seal member is provided between the valve member and the water inlet forming portion, and the straight water outlet and the shower water outlet of the water inlet forming portion are brought close to each other. Therefore, it is possible to easily reduce the size of the switching device including the water inlet forming portion and hence the size of the water discharge device.

  In addition, in the invention according to claim 6, it is possible to reduce the force required for the rotation operation of the rotation member, and it is possible to improve the operability.

(A) And (B) is explanatory drawing which shows the structure of the water discharging apparatus which concerns on the 1st Embodiment of this invention, and a partial expansion perspective view. It is a disassembled perspective view which shows roughly the structure of the upper side mainly of the said water discharging apparatus. It is a disassembled perspective view which shows roughly the structure below mainly of the said water discharging apparatus. (A) is a disassembled perspective view which shows roughly the more detailed structure mainly on the upper side of the said water discharging apparatus, (B) is the BB cut | disconnection perspective view of (A). (A) is an exploded perspective view schematically showing a more detailed configuration mainly on the lower side of the water discharge device, (B) is a perspective view cut along the line BB of (A). (A) is a side view schematically showing the structure of the water discharge device in the form of straight water discharge, (B) is a sectional view taken along the line XX of FIG. (C), and (C) and (D) are straight water discharge. It is the bottom view and front view which show the structure of the said water discharging apparatus in a form schematically. (A)-(E) is a cut sectional view concerning AA line, BB line, CC line, DD line, and EE line of Drawing 6 (B), respectively. (A) is a side view schematically showing the configuration of the water discharge device in the form of shower water discharge, (B) is a cross-sectional view taken along line XX of FIG. (C), and (C) and (D) are shower water discharge forms. It is the bottom view and front view which show schematically the structure of the said water discharging apparatus in. FIGS. 8A to 8E are cross-sectional views taken along lines AA, BB, CC, DD, and EE in FIG. 8B, respectively. (A) And (D) is the perspective view and partial cutaway perspective view which show schematically the structure of the principal part of the water discharge form switching apparatus of the said water discharge apparatus when it exists in a straight water discharge form, (B) is a straight water discharge form and a shower The perspective view which shows the structure of the said water discharge form switching device when it exists in the form between the water discharge forms, (C) and (E) of the principal part of the said water discharge form switch apparatus in a shower water discharge form It is the perspective view and partial cutaway perspective view which show a structure roughly. (A) is a perspective view which shows the structure of the principal part of the said water discharge form switching apparatus roughly, (B) is the BB sectional view taken on the line of (A), (C) is the CC line of (A). FIG. It is a perspective view which shows roughly the structure of the rotation member of the said water discharge form switching apparatus, and a sealing member. (A) and (B) are perspective views schematically showing mainly the upper and lower configurations of the rotating member, and (C) to (E) are plan views schematically showing the configuration of the rotating member. , Bottom view and front view, (F) is a sectional view taken along line FF in FIG. (C), (G) is a sectional view taken along line GG in FIG. It is a HH line cutting sectional view of A). (A) And (B) is a perspective view which shows roughly the structure of mainly the upper side and lower side of the valve member of the said water discharge form switching apparatus, (C) And (D) schematically shows the structure of the said valve member. It is the top view and bottom view which show. (A)-(D) are the top view, bottom view, side view, and perspective view which show the structure of the switching apparatus main body of the said water discharge form switching apparatus roughly, (E) is the EE line | wire of the same figure (A). FIG. 4F is a cross-sectional view taken along line FF in FIG. 4A, and FIG. 4G is a perspective view cut along line GG in FIG. It is a disassembled perspective view which shows roughly the structure of the upper side mainly of the water discharging apparatus which concerns on the 2nd Embodiment of this invention. It is a disassembled perspective view which shows roughly the structure of the lower side mainly of the water discharging apparatus which concerns on the 2nd Embodiment of this invention. (A) is a side view schematically showing the structure of the water discharge device in the form of straight water discharge, (B) is a sectional view taken along the line XX of FIG. (C), and (C) and (D) are straight water discharge. It is the bottom view and front view which show the structure of the said water discharging apparatus in a form schematically. (A)-(E) are cut | disconnected sectional drawings concerning the AA line of FIG.18 (B), a BB line, CC line, DD line, and EE line, respectively. (A) is a side view schematically showing the configuration of the water discharge device in the form of shower water discharge, (B) is a cross-sectional view taken along line XX of FIG. (C), and (C) and (D) are shower water discharge forms. It is the bottom view and front view which show schematically the structure of the said water discharging apparatus in. (A)-(E) are each cut-out sectional views concerning the AA line, BB line, CC line, DD line, and EE line of Drawing 20 (B). (A) And (D) is the perspective view and partial cutaway perspective view which show schematically the structure of the principal part of the water discharge form switching apparatus of the said water discharge apparatus when it exists in a straight water discharge form, (B) is a straight water discharge form and a shower The perspective view which shows the structure of the said water discharge form switching device when it exists in the form between the water discharge forms, (C) and (E) of the principal part of the said water discharge form switch apparatus in a shower water discharge form It is the perspective view and partial cutaway perspective view which show a structure roughly. (A) And (B) is a perspective view which shows roughly the structure of mainly the upper side and lower side of the valve member of the said water discharge form switching apparatus, (C) And (D) schematically shows the structure of the said valve member. It is the top view and bottom view which show. (A)-(D) are the top view, bottom view, side view, and perspective view which show the structure of the switching apparatus main body of the said water discharge form switching apparatus roughly, (E) is the EE line | wire of the same figure (A). FIG. 4F is a cross-sectional view taken along line FF in FIG. 4A, and FIG. 4G is a perspective view cut along line GG in FIG. (A) is a perspective view which shows roughly the structure of the principal part of the water discharge form switching apparatus which concerns on the modification of the said water discharge apparatus when it exists in a straight water discharge form, (B) is between a straight water discharge form and a shower water discharge form. The perspective view which shows schematically the structure of the said water discharge form switching apparatus when it exists in this form, (C) is the perspective view which shows the structure of the principal part of the said water discharge form switching apparatus when it exists in a shower water discharge form is there. It is a perspective view which shows the structure of the conventional water discharging apparatus roughly. It is explanatory drawing which shows roughly the structure of the principal part of the conventional water discharging apparatus when it exists in a straight water discharging form. It is explanatory drawing which shows schematically the structure of the principal part of the conventional water discharging apparatus when it exists in a shower water discharging form. It is a disassembled perspective view which shows the structure of the conventional water discharging apparatus roughly.

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

  First, a first embodiment of the present invention will be described.

  As shown to FIG. 1 (A), the water discharging apparatus 1 which concerns on the 1st Embodiment of this invention is a shower head, and comprises the water tap (hot-water mixed water tap) 2 installed in the washstand. . In addition, the water discharging apparatus 1 is detachable by serration fitting with respect to the cylindrical opening part 3 at the faucet main body side which supports this water discharging apparatus 1, and changes direction to the cylindrical opening part 3 around the axis | shaft. It has a configuration that can be mounted. Further, a shower hose 4 is connected to the water discharge device 1, and this shower hose 4 is inserted through the cylindrical opening 3, and when the water discharge device 1 is detached from the cylindrical opening 3, along with this removal A part of the shower hose 4 is pulled out from the cylindrical opening 3 (see a virtual line in FIG. 1A).

  And as shown in FIGS. 2-5, the water discharging apparatus 1 is provided with the substantially cylindrical cover member 5 comprised symmetrically, and this cover member 5 consists of synthetic resins, such as ABS resin, for example, and it is on an outer surface. Has been plated.

  As shown in FIGS. 2 and 3, the cover member 5 has a substantially cylindrical side wall 5 a whose front end is closed and whose rear end is opened as a rearward opening 6. A flow path is formed from the rearward opening 6. The member 7 is inserted. Further, a front opening 8 is provided at the front portion of the side wall 5a, and the water discharge form switching device (hereinafter referred to as "switching device") having a rotating member 29 (detailed configuration will be described later) is provided from the front opening 8. .) 9 is inserted. In the water discharge device 1, the inner wall surface of the cover member 5 is not used as a flow path, and a flow path is formed in the flow path forming member 7 and the switching device 9 inserted into the cover member 5. It has a heavy structure.

  The flow path forming member 7 is configured symmetrically, and is made of, for example, a synthetic resin such as ABS resin, and has an inner serration 10 on the rear inner wall surface as shown in FIGS. 2 and 3. A fitting outer serration (not shown) is provided in the cylindrical opening 3 (see FIG. 1).

  Further, when the flow path forming member 7 is inserted into the cover member 5, the upper and lower sides of both members 5 and 7 can be easily matched, as shown in FIGS. A guide portion (groove in the illustrated example) 11 is provided on the wall surface, and a guided portion (a protrusion in the illustrated example) 12 guided by the guide portion 11 corresponds to the guide portion 11 on the rear outer wall surface of the flow path forming member 7. In the position. In this embodiment, three guide portions 11 and three guided portions 12 are provided, but the number of these portions can be arbitrarily changed. Further, for example, contrary to the illustrated example, the guide portion 11 is a protrusion, and the groove guided by the protrusion is a guided portion 12, or the guide portions 11 and the guided portions 12 are different in shape from each other. The configuration of the guide portion 11 and the guided portion 12 can be variously changed, for example, to have a size.

  Further, in this embodiment, in order to prevent the flow path forming member 7 inserted to a predetermined position in the cover member 5 from unexpectedly coming out of the cover member 5, as shown in FIG. An elastic locking piece 13 is provided on the lower surface (in the illustrated example), and this elastic locking piece 13 is locked to an inner edge of the notch hole 14 provided in the cover member 5 to be located at a predetermined position in the cover member 5. The flow path forming member 7 inserted up to is prevented from coming off from the cover member 5 (see also FIGS. 6B and 8B).

  As shown in FIGS. 2 to 5, a notch groove 15 is formed on the lower surface of the rear portion of the flow path forming member 7. The notch groove 15 is provided at a position where the channel forming member 7 faces the notch hole 14 when the channel forming member 7 is inserted to a predetermined position in the cover member 5. It reaches from the outer surface of the member 7 to the inner space. Then, the flow path forming member 7 is inserted into the cover member 5 and the shower hose 4 is inserted into the rear portion of the flow path forming member 7. If a substantially U-shaped hose fixing member 16 (see FIG. 2 to FIG. 5) is inserted into the notch groove 15 of the flow path forming member 7, the distal end portion 4 a of the shower hose 4 located in the flow path forming member 7. Is locked and fixed by the hose fixing member 16 so that it cannot be removed from the flow path forming member 7. Although not shown, a seal member (for example, an O-ring) is attached to the outer surface at a position closer to the distal end than the portion locked by the hose fixing member 16 in the distal end portion 4a of the shower hose. A mesh member for filtration is disposed on the front side of 4a, and the peripheral portion of the mesh member is sandwiched and fixed between the tip portion 4a and the rear inner peripheral wall of the flow path forming member 7.

  The hose fixing member 16 inserted into the notch hole 14 and the notch groove 15 as described above straddles the elastic locking piece 13 and closes the notch hole 14 (FIGS. 6A to 6C). (See FIGS. 8A to 8C). When the hose fixing member 16 is removed from the cutout hole 14 and the cutout groove 15, the shower hose 4 can be pulled out from the flow path forming member 7, and thereafter, the elastic locking piece 13 is attached from the outside of the cutout hole 14. When the operation of pushing into the cover member 5 is performed, the elastic locking piece 13 is released from the inner edge of the cutout hole 14 and the flow path forming member 7 can be pulled out from the cover member 5.

On the other hand, the switching device 9 is composed of a plurality of members such as the rotating member 29 as shown in FIGS. 4A and 5A, and the assembled state is shown in FIGS. It is shown in FIG. Then, when the switching device 9 is inserted into the cover member 5, the front and rear sides of the cover member 5 can be easily matched with each other, as shown in FIGS. A guide portion (substantially L-shaped guide rail provided from the front wall to the top wall of the cover member 5 in the illustrated example) 17 is provided, and a guided portion (protrusion in the illustrated example) 18 that is guided by the guide portion 17. Is provided at a position corresponding to the guide portion 17 on the outer wall surface of the switching device 9 (in the illustrated example, the center portion in the left-right direction of each of the front wall surface and the upper wall surface). In this embodiment, the guide portion 17 is continuously formed in a substantially L shape. However, a portion provided on the front wall of the cover member 5 and a portion provided on the top wall may be separated from each other. Further, for example, conversely to the illustrated example, the guide portion 17 and the guided portion 18 are configured such that the guide portion 17 is a protrusion, and a guide rail or a groove guided by the protrusion is a guided portion 18. Can be variously changed.

  Further, the turning member 29 of the switching device 9 inserted into the cover member 5 is supported by a substantially U-shaped support member 19 shown in FIGS. 4 (A) and 5 (A), whereby the switching device 9. The whole is configured to be supported. That is, the support member 19 is made of, for example, a metal such as stainless steel, and has two leg portions 20 and a bridge portion 21 that connects the two leg portions 20. As shown in FIG. It is held in a holding groove 22 provided on the front surface of the forming member 7. Although not shown in the drawing, the holding groove 22 is provided with a locking portion for locking and fixing the bridge portion 21, and the bridge portion 21 is locked and fixed to the locking portion of the holding groove 22. The support member 19 in a state is in a state of being freely rotatable around the bridge portion 21 as an axis.

  Then, after the switching device 9 is inserted from the front opening 8 into the cover member 5, the flow path forming member 7 (see FIGS. 2 and 3) holding the bridge portion 21 is moved from the rear opening 6 into the cover member 5. When inserted, the two leg portions 20 of the support member 19 are placed on the two rails 5b (see FIGS. 4B and 5B) provided in the cover member 5 extending in the front-rear direction and facing the front side. The front end of each of the two leg portions 20 is held in a holding portion (for example, a groove) 23 shown in FIG. 3 provided in the cover member 5, while maintaining a straight extension state. The rotating member 29 is supported by the intermediate portions of the two leg portions 20 (a specific description regarding this support will be described later).

  4B and 5B, only the rail 5b on the right side of the cover member 5 appears, but the rail 5b is also provided on the left side of the cover member 5. Similarly, in FIG. 3, FIG. 4B and FIG. 5B, only the holding portion 23 on the right side of the cover member 5 appears, but the holding portion 23 is also provided on the left side of the cover member 5. (See FIG. 7D). Further, as shown in FIGS. 4B and 5B, the base ends of the two leg portions 20 of the support member 19 are respectively provided behind the space in which the switching device 9 is accommodated in the cover member 5. A holding portion (for example, a groove) 24 for holding the portion is provided (see also FIG. 7E). The rear end portion of the rail 5b may be directed obliquely downward, and the leg portion 20 may be easily placed on the rail 5b when the flow path forming member 7 is inserted into the cover member 5 from the rearward opening 6. Further, the flow path forming member 7 may be provided with a portion for holding the two leg portions 20 of the support member 19 so as to extend straight toward the front side. In this case, the rail 5b is unnecessary. Become.

  As shown in FIGS. 2 to 5, a coupling portion 26 to which a seal member (for example, an O-ring) 25 is attached is provided at the distal end portion of the flow path forming member 7, and the coupling is coupled to the coupling portion 26. A mouth 27 is provided at the upper back of the switching device 9. That is, when the switching device 9 is inserted into the cover member 5 from the front opening 8 and then the flow path forming member 7 is inserted into the cover member 5 from the rear opening 6, the coupling portion 26 is coupled to the coupling port 27, and the flow path The flow path in the forming member 7 and the flow path in the switching device 9 communicate with each other.

  The water discharge device 1 having the above configuration inserts the switching device 9 (the rotation member 29) into the cover member 5 from the front opening 8, and then opens the flow path forming member 7 in a state of holding the support member 19 to the rear opening 6. Then, the shower hose 4 is inserted into the rear portion of the flow path forming member 7 and the hose fixing member 16 is inserted into the cutout hole 14. Therefore, the number of steps for assembling the water discharge device 1 is small, and guide means such as the guide part 11 and the guided part 12, the guide part 17 and the guided part 18 are provided so that each process can be performed easily. Attached workability is very good.

  Further, in the water discharge device 1 after completion, it is not sufficient to remove the hose fixing member 16 from the cutout hole 14 in order to pull out the flow path forming member 7 from the cover member 5. The elastic locking piece 13 must be pushed into the cover member 5 from the outside of the cover member 5 to release the locking of the elastic locking piece 13 with respect to the inner edge of the notch hole 14. Therefore, for example, when the hose fixing member 16 is removed and the shower hose 4 is pulled out from the flow path forming member 7 in order to perform maintenance such as replacement of the sealing member or mesh member attached to the shower hose 4, the cover member The flow path forming member 7 that does not need to be pulled out from the cover member 5 is suddenly removed from the cover member 5 together with the support member 19, and the switching device 9 that is not supported by the removal of the support member 19 falls from the cover member 5 and eventually breaks. Can be surely prevented.

  And in the completed water discharging apparatus 1, as shown to FIG. 1 (B), the lower part of the switching apparatus 9 will be in the state exposed to the exterior of the cover member 5, and the water discharging apparatus 1 will be in the lower part of this switching apparatus 9. By operating the provided knob 28 in the direction of arrow A, the water discharge form from the water discharge device 1 can be switched to two forms of a straight water discharge form and a shower water discharge form.

  Hereinafter, a more detailed configuration of the switching device 9 having the switching function will be described.

  As shown in FIGS. 4 (A) and 5 (A), the knob 28 is a part of the rotating member 29, and the rotating member 29 has the shape shown in FIGS. (Cylinder). As shown in FIGS. 13A and 13C, a water inlet forming portion 30 is provided inside the rotating member 29, and the water inlet forming portion 30 has an upstream side of the water inlet forming portion 30. For shower water discharge for guiding water supplied from the side (upper side in the illustrated example) to the straight water discharge port 31 (see FIG. 3) and the straight water discharge port 32 (see FIG. 3). Two water inlets 34 are formed (see also FIGS. 13D and 13F).

  That is, a spout forming member 35 shown in FIGS. 4 (A) and 5 (A) is attached to the inside of the rotating member 29 from below, and the spout forming member 35 includes an inner cylinder portion 36 and an outer cylinder. Part 37, and both cylinder parts 36 and 37 are connected through an annular shower face plate portion 38 (see also FIGS. 7A and 9A). And the lower part of the inner cylinder part 36 is comprised as the straight water discharge port 31, and many shower water discharge holes 33 are provided in the shower faceplate part 38. FIG.

  The water discharge port forming member 35 is attached to the rotating member 29 on the female screw portion 39 provided on the lower inner wall surface of the rotating member 29 as shown in FIGS. 7 (A) and 9 (A). This can be done by screwing the male thread portion 40 provided on the outer wall surface of the outer cylinder portion 37 of the water mouth forming member 35. Further, a seal member (for example, an O-ring) 41 is provided at a position below the internal thread portion 39 and the external thread portion 40 between the inner wall surface of the rotating member 29 and the outer wall surface of the outer cylinder portion 37 of the water discharge port forming member 35. Is provided.

  Further, the lower portion (downstream side) of the water inlet forming portion 30 in the rotating member 29 has the straight water outlet 32 in the state where the water outlet forming member 35 is attached to the rotating member 29. It communicates with the inside of the cylinder part 36, and is appropriately divided so that the water outlet 34 for shower water discharge communicates with the annular space between the inner cylinder part 36 and the outer cylinder part 37 (FIGS. 13F to 13H). )reference). As shown in FIGS. 13 (F) to (H), the small cylinder portion 42 provided in the rotating member 29 for this section has an inner space communicating with the straight water discharge inlet 32. Further, as shown in FIGS. 7A and 9A, the inner tube portion 36 of the water discharge port forming member 35 is connected to the small tube portion 42 via a seal member (for example, a sheet packing) 43. The

  On the other hand, as shown in FIGS. 4 (A), 5 (A), 10 (D) and 10 (E), and FIGS. In addition, a seal member (unshaped packing) 44 is provided. The seal member 44 is made of an elastic material such as rubber, for example, and is disposed so as to cover the water inlet forming portion 30. Moreover, as shown to FIG.10 (D) and (E), FIG.11 (B), and (C), the sealing member 44 has the straight water inlet 32 and the water outlet for shower water discharge of the water inlet formation part 30. As shown in FIG. A plurality of (four in the illustrated example) water passage holes 45 are formed so as not to block 34.

  In this embodiment, a concave portion opened upward is provided on the upper portion of the rotating member 29, and the seal member 44 is accommodated in the concave portion. Further, it is necessary to rotate the seal member 44 integrally with the rotation member 29. Therefore, in the present embodiment, as shown in FIG. As shown in FIGS. 13A and 13C, the shape of the concave portion that accommodates the shape is matched with the shape of the seal member 44.

  Further, on the upstream side (upper side) of the seal member 44, a valve member 46 having a symmetrical shape shown in FIGS. 4A, 5A, and 14A to 14D is disposed. . As shown in FIGS. 14 (A) to (D), the valve member 46 has a substantially disk-shaped base portion 48 provided with two through holes 47. An annular stepped portion 49 that can contact the peripheral edge of the base portion 48 is provided (see FIG. 13A).

  And this valve member 46 is accommodated in the switch apparatus main body 50 of the shape shown to FIG. 4 (A), FIG. 5 (A), FIG. 15 (A)-(G), and this switch apparatus main body 50 and valve member. 46 is provided with guide means for guiding the valve member 46 so as to be movable toward and away from the seal member 44 and holding the valve member 46 in a specific direction.

  That is, the switching device main body 50 is a hollow member that is open on the downstream side (lower side in the present embodiment) in addition to the coupling port 27. In the switching device main body 50, FIGS. The guide holding portion 51 shown in FIG. 14A to FIG. 14C that is guided and held by the guide holding portion 51 is provided in the valve member 46. In this embodiment, the guide holding portion 51 is formed by connecting a plurality of arc wall portions having different diameters, and the guided holding portion 52 is along the inside of the guide holding portion 51 and avoids the through hole 47. The shape is cut out.

  Further, as shown in FIGS. 7A and 9A, the valve member 46 is urged in a direction approaching the seal member 44 by an urging means (for example, a spring) 53. And in order to hold | maintain this biasing means 53, the holding | maintenance part 54 shown to FIG.15 (B), (G) is provided in the ceiling wall lower surface of the switching apparatus main body 50, and the upper surface of the base 48 of the valve member 46 is provided on the upper surface. A holding portion 55 shown in FIGS. 14A and 14C is provided.

  The switching device main body 50 is configured to cover a portion excluding the lower portion of the rotating member 29 in a state where the sealing member 44 is held in a state where the biasing means 53 and the valve member 46 are accommodated therein. Here, it is necessary to prevent water leakage from between the inner wall of the switching device main body 50 and the outer wall of the rotating member 29. In this embodiment, the switching device main body 50 is fixed so as not to move in the cover member 5. In contrast, the rotating member 29 is rotated about its axis by the operation of the knob 28. Therefore, in this embodiment, as the seal member 56 provided between the two 50 and 29, for example, lip packing such as U packing and V packing can be cited (FIG. 4A, FIG. 5A, FIG. 7). A) and FIG. 9 (A)).

  In addition, a sliding surface forming member 57 made of, for example, polyethylene (FIGS. 4A, 5A, and 7A) is formed on a portion of the outer wall surface of the rotating member 29 where the lower end of the switching device main body 50 abuts. 9A), the sliding friction between the two 50 and 29 is reduced.

  Further, as shown in FIGS. 10A to 10E, the rotating member 29 is rotatably supported by the support member 19, and as shown in FIG. An annular groove 58 is provided on the outer wall surface, and the two leg portions 20 of the support member 19 are connected to the left and right sides of the enlarged diameter portion 59 which is continuous with the upper side of the annular groove 58 and has a larger diameter toward the upper side (upstream side). Abut. Corresponding to this configuration, the two leg portions 20 of the support member 19 are provided on the left and right sides of the switching device main body 50 as shown in FIGS. 15 (C), (D), (F), and (G). In order to avoid this, notched portions 60 and 61 are provided. In this embodiment, two through-hole-like cutout portions 60 (see FIG. 15C) are provided on one surface side of the switching device main body 50, and a groove-like cutout portion 61 (see FIG. 15) is provided on the other surface side. Although only one (see (F)) is provided, the configuration of the cutout portions 60 and 61 can be variously changed.

  And in this form, when the knob | pick 28 exists in the position shown to FIG. 6 (A), (C), (D), as shown to FIG. 6 (B), water discharge is performed from the straight spout 31. It becomes straight water discharge form. The state of each part of the water discharging apparatus 1 at this time is also shown in FIGS. 7 (A) to (E) and FIGS. 10 (A) and 10 (D). Moreover, when the knob | pick 28 exists in the position shown to FIG. 8 (C), (D), as shown to FIG. 8 (B), it becomes a shower water discharge form in which water discharge is performed from the shower water discharge hole 33. FIG. The state of each part of the water discharging apparatus 1 at this time is also shown in FIGS. 9 (A) to (E), FIGS. 10 (C) and (E).

  That is, first, regardless of the position of the knob 28, the water that has entered the switching device 9 from the water supply port 27 through the flow path forming member 7 passes through the switching device main body 50 and reaches the upstream side of the valve member 46. After that, it goes to the downstream side of the valve member 46 through the two through holes 47. Here, each through hole 47 of the valve member 46 constitutes a water outlet opening provided toward the downstream side, and is hereinafter referred to as a water outlet 47.

  In addition, the four water inlets 32 and 34 provided in the water inlet forming part 30 of the rotating member 29 on the downstream side of the valve member 46 are in positions avoiding the center (rotating shaft) of the rotating member 29 ( 13 (C)), the water outlet 47 is connected to the water inlets 32 and 34 through the water passage hole 45 of the seal member 44 so that the axis of the rotating member 29 is aligned with the valve member 46. It is provided at a position avoided (see FIGS. 10D and 10E). Accordingly, as the rotation member 29 rotates, the phases of the rotation member 29 and the seal member 44 with respect to the water outlet port 47 are changed, and the rotation of the rotation member 29 and the water outlet port 47 through the water passage hole 45 of the seal member 44 is changed. The water inlets 32 and 34 of the moving member 29 are changed.

  And when the knob | pick 28 exists in the position shown to FIG. 6 (A), (C), (D), in the water outlet 47, four provided in the water inlet formation part 30 of the rotation member 29 are provided. Of the water inlets, only two straight water outlets 32 are in communication (see FIG. 10D), and the remaining two shower water outlets 34 are not in communication.

  That is, as shown in FIGS. 14B and 14D, the lower surface (downstream surface) of the base 48 of the valve member 46 is formed in a substantially flat shape, and the portions other than the water outlet 47 on the lower surface are downstream. The water stop part 48a provided toward the side is comprised. Of the four water holes 45 provided in the seal member 44, the water holes 45 that are not in a position communicating with the water outlet 47 are blocked by the water stop portion 48 a and communicate with the closed water holes 45. The water inlets 32 and 34 to be communicated with the water outlet 47 are not connected.

  Here, among the four water holes 45 provided in the seal member 44 and the water inlets 32 and 34 provided in pairs in the water inlet forming part 30, the water holes 45 communicating with the water outlet 47, In the present embodiment, the upstream side (upper side) surface of the seal member 44 facing the substantially planar water stop portion 48a is provided along the periphery of each water passage hole 45 so that water flows only through the water ports 32 and 34. Each water inlet is provided on the upstream (upper) surface of the water inlet forming portion 30 provided with a protrusion 44a (see FIG. 12) and facing the downstream (lower) surface of the substantially planar sealing member 44. A protruding portion 30 a is provided along the peripheral edges of 32 and 34.

  In addition, instead of the configuration in which the water stop portion 48a is substantially planar and the protrusion 44a is provided on the seal member 44, the upstream (upper) surface of the seal member 44 is substantially planar, and the valve member 46 is provided. A configuration may be employed in which the water stopping portion 48 a is provided with a protrusion that can contact the seal member 44 in a state of surrounding each water passage hole 45. Similarly, instead of the configuration in which the downstream (lower) surface of the seal member 44 is substantially planar and the protrusion 30a is provided on the water inlet forming portion 30, the upstream side of the water inlet forming portion 30 ( The upper surface is made substantially planar, and a protrusion that can contact the water inlet forming portion 30 is provided on the downstream (lower) surface of the seal member 44 so as to surround the water inlets 32 and 34. A configuration may be adopted.

  Therefore, when the knob 28 is in the position shown in FIGS. 6A, 6C, and 6D, the water led out from the water outlet 47 is passed through the water passage hole 45 of the seal member 44 and the straight water discharge guide. It passes through the water port 32, passes through the small tube portion 42 in the rotating member 29, and the inner tube portion 36 of the water discharge port forming member 35, and is discharged from the straight water discharge port 31 at the tip thereof. In addition, when water passes through the inner cylinder portion 36, it passes through a rectifier (for example, a foam device) 62 mounted in the inner cylinder portion 36. As this rectifier 62, a known rectifier 62 can be adopted. In order to avoid complications, the rectifier 62 is schematically shown only in FIGS. 4 (A) and 5 (A).

  Further, when the knob 28 is operated and moved to the positions shown in FIGS. 8C and 8D, the water outlet 47 has four guides provided in the water inlet forming portion 30 of the rotating member 29. Of the water outlets, only two shower water outlets 34 communicate with each other (see FIG. 10E), and the remaining two straight water outlets 32 do not communicate with each other.

  Therefore, when the knob 28 is in the position shown in FIGS. 8C and 8D, the water led out from the water outlet 47 passes through the water passage hole 45 of the seal member 44 and the water outlet 34 for shower water discharge. Then, after passing through the annular space between the inner cylinder part 36 and the outer cylinder part 37 of the water discharge port forming member 35, the water is discharged from a number of shower water discharge holes 33 of the shower face plate portion 38 at the tip thereof.

  Here, the range in which the rotary member 29 can be rotated in accordance with the operation of the knob 28 is limited, and the knob 28 is positioned as shown in FIGS. 6A, 6C, and 6D and FIG. ), (D), in this embodiment, a protrusion 63 (see FIG. 10B) is provided on the upper portion of the rotating member 29, so that the switching device can be moved. In the main body 50, two stoppers 64 (see FIGS. 15B, 15D, and 15G, which are examples of a rotation restricting portion that restricts the rotation of the rotation member 29) for stopping the protrusion 63 are provided. It has been.

  In the water discharge device 1, the seal member 44 is provided between the valve member 46 and the water inlet forming portion 30, and the straight water outlet 32 and the shower water outlet 34 of the water inlet forming portion 30 are brought close to each other. Therefore, it is possible to easily reduce the size of the switching device 9 including the water inlet forming unit 30 and hence the water discharge device 1.

  Further, after the rotation member 29 is inserted into the cover member 5 from the front opening 8, the rotation member only needs to be inserted into the cover member 5 from the rear opening 6 while holding the support member 19. 29 is completed. Therefore, the work for mounting the rotating member 29 is simple and the screwing work can be eliminated when the rotating member 29 is mounted. It is easy to prevent the forming member 7 from being excessively stressed and to always realize an appropriate mounting state.

  Next, a second embodiment of the present invention will be described.

  The valve member 46 of the first embodiment has a water stop portion 48a formed in a substantially flat shape, but the valve member 46A of the water discharger according to the second embodiment is shown in FIGS. 17, it has the water stop part 48a formed in the curved surface shape convex toward the downstream (lower side) instead of substantially planar shape, as shown to FIG. 23 (A)-(D). Accordingly, in the first embodiment, on the upstream (upper) surface of the seal member 44 that faces the water stop portion 48a, the ridge portion 44a (see FIG. 12) along the periphery of each water passage hole 45. However, in the second embodiment, the protrusion 44a is not provided, and the upstream (upper) surface of the seal member 44 is substantially planar.

  Further, the valve member 46 of the first embodiment has two through holes constituting the water outlet 47, but the valve member 46A of the second embodiment is shown in FIGS. As shown in FIGS. 23 (A) to 23 (D), the water outlet 47 does not have a through hole. Instead, the base 48 is made smaller, and the base 48 and the valve member 46A of the valve member 46A. A gap is formed with the inner wall of the switching device main body 50 that houses the water, and the water outlet 47 is configured by this gap.

  Further, in the second embodiment, the configuration of the guide means for guiding the valve member 46 so as to be movable in the direction approaching and separating from the seal member 44 and holding the valve member 46 in a specific direction is the first configuration. It is different from the embodiment. That is, as shown in FIGS. 24 (B), (D), (E), and (G), the guide holding portion 51 in the second embodiment has a diameter that is different from the rail-like portion 51a that extends vertically. A wall portion 51b having a shape in which a plurality of different arcuate wall portions are connected is provided. As the guided holding portion 52, as shown in FIGS. 23 (A) to (D), a groove portion 52a along the rail-like portion 51a is provided. And a wall portion 52b having a shape along the inside of the wall portion 51a and notched so as to avoid the groove portion 52a and the water stop portion 48a.

  Further, the switching device main body 50 in the second embodiment has the structure shown in FIGS. 24A to 24G, and the two stoppers 64 inside thereof have the shapes shown in FIGS. 24D and 24G. This is different from that of the first embodiment.

  And in 2nd Embodiment, when the knob | pick 28 exists in the position shown to FIG. 18 (A), (C), (D), as shown to FIG. 18 (B), from straight outlet 31 It becomes the straight water discharge form in which water discharge is performed. The state of each part of the water discharging apparatus 1 at this time is also shown in FIGS. 19 (A) to 19 (E), 22 (A), and 22 (D). Moreover, when the knob | pick 28 exists in the position shown to FIG. 20 (A), (C), (D), as shown to FIG. 20 (B), the shower water discharge form in which water discharge is performed from the shower water discharge hole 33, and Become. The state of each part of the water discharging apparatus 1 at this time is also shown in FIGS. 21 (A) to (E), FIGS. 22 (C) and (E).

  The other configurations in the second embodiment, such as the pivot member 29 being pivotally supported by the support member 19 (see FIGS. 22A to 22E), are the same as those in the first embodiment. The same components are denoted by the same reference numerals, and description thereof is omitted.

  In the second embodiment, as shown in FIGS. 25A to 25C, a rail 71 extending in the rotation direction of the rotation member 29 is provided on the rotation member 29 and the valve member 46 is provided with the rail 71. A contact portion 72 that contacts the rail 71 is provided, and the water outlet 47 communicates with both the straight water discharge port 31 and the shower water discharge hole 33 as the rotation member 29 rotates (see FIG. 25B). ), The rail 71 may be provided with an inclined portion 73 inclined in the height direction so as to separate the valve member 46 from the water inlet forming portion 30 of the rotating member 29. Of course, conversely, a configuration corresponding to the rail 71 and the inclined portion 73 may be provided in the valve member 46, and a configuration corresponding to the contact portion 72 may be provided in the rotating member 29.

  When the rail 71, the contact portion 72, and the inclined portion 73 are provided as described above, the force required for the turning operation of the turning member 29 by the knob 28 can be reduced, and the operability is improved. Can be planned.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. Therefore, the modified example will be described below.

  The water discharge device 1 may not have the shower hose 4, and the present invention is applicable to a water discharge device other than the shower head. Further, the installation location of the faucet 2 is not limited to the wash basin, and the faucet 2 itself is not limited to the hot / cold water faucet, but may be a single faucet, for example.

  The support member 19 that supports the rotating member 29 may not be held by the flow path forming member 7. For example, the support member 19 may be integrated with the flow path forming member 7.

  The straight water outlet 32 and the shower water outlet 34 are provided in pairs, and the water inlet 45 is not limited to four. For example, the water inlets 32 and 34 are provided one by one. Two 45 may be provided.

  The urging means 53 for urging the valve member 46 may not be provided, and the valve member 46 may be urged by using a supply water pressure. Further, the valve outlet 46 and the switching device main body 50 may not be provided, and the water outlet 47 and the water stop portion 48 a may be formed by the inner wall of the cover member 5. In this case, what is necessary is just to comprise so that the other required function which the switching apparatus main body 50 has may be borne by the inner wall of the cover member 5. FIG.

  For example, the modification of providing the rail 71, the contact portion 72, and the inclined portion 73 described in the second embodiment may be applied to the first embodiment. Needless to say, the configuration of the embodiment and the modifications thereof may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Water discharging apparatus 9 Water discharging form switching apparatus 29 Rotating member 30 Water transfer port formation part 31 Straight water discharge port 32 Straight water discharge water flow port 33 Shower water discharge hole 34 Shower water discharge water flow port 44 Seal member 45 Water flow hole 46 Valve member 47 Water conveyance Exit 48a Water stop

Claims (7)

A water discharge type switching device that switches the form of water to be discharged between a straight water discharge form and a shower water discharge form,
A valve member constituting a water outlet and a water stop provided toward the downstream side;
A water outlet forming portion disposed downstream of the water outlet, and a water outlet for straight water discharge and a shower water outlet for guiding water supplied from the upstream side to the straight water outlet in the water inlet forming portion; A rotating member formed with a water outlet for shower water discharge to lead to
Between the valve member and the water inlet forming portion, the plurality of water outlets are arranged so as to cover the water inlet forming portion, and the straight water outlet and the shower water outlet are not blocked. The water passage hole which has a water passage hole and is not in a position communicating with the water outlet port includes a seal member which is closed by the water stop portion,
The seal member rotates integrally with the rotation member, and with this rotation, the water outlet port communicates with the straight water discharge port via the water flow hole and the straight water discharge port. And a water discharge mode switching device configured to be switched to a state where the water outlet port communicates with the shower water discharge hole via the water flow hole and the shower water discharge port.   The guide means which guides the said valve member so that a movement to the direction which adjoins and separates to the said seal member, and the urging means which urges | biases the said valve member in the direction which adjoins to the said seal member are provided. Water discharge form switching device.   The water discharge mode switching device according to claim 2, wherein the valve member is configured to be held in a state facing a specific direction by the guide means.   A protrusion is provided on the upstream surface of the seal member along the periphery of the water passage hole, or a protrusion that can contact the seal member in a state of surrounding the water passage hole is the stop. The water discharge form switching device according to any one of claims 1 to 3, which is provided in the water section.   The water discharge form switching device according to any one of claims 1 to 3, wherein the water stop portion is formed in a convex curved surface toward the downstream side.   Either one of the valve member or the rotation member is provided with a rail extending in the rotation direction of the rotation member, and the other is provided with a contact portion that contacts the rail. Accordingly, while the water outlet port is in a state of communicating with both the straight water outlet and the shower water outlet hole, the valve member is placed on the rail so as to be separated from the water inlet forming portion of the rotating member. The water discharge form switching device according to any one of claims 1 to 5, wherein an inclined portion that is inclined in the vertical direction is provided.   The water discharging apparatus provided with the water discharging form switching apparatus in any one of Claims 1-6.

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