JP4773875B2 - Fixing structure of internal flow path member of shower head - Google Patents

Description

  The present invention relates to a fixing structure for an internal flow path member of a shower head.

  Conventionally, as a fixing structure for fixing an internal flow path member of a shower head to the shower head main body side, an internal flow path member capable of circulating hot water inside is connected to a joint fixed to the shower head main body and connected to a shower hose. As fixing, a fixing structure is known in which an internal flow path member is fixed to a shower head body via a joint. For example, referring to FIG. 8 and FIG. 9, the joint 10 fitted to the main body 2 by the bush 11 is inserted and fixed in the opening 7 on the base end side of the main body 2 of the shower head 1. Hot water is supplied to the shower head 1 side from a connection port 18 to which a connection fitting of a shower hose (not shown) is connected and fixed to the base end side of the joint 10. A connection port 14 that is inserted and connected to a pipe 30 that is an internal flow path member projects from the distal end side of the joint 10. The outer peripheral surface of the connection port 14 is water-tight with the inner peripheral surface of the pipe 30. A seal member 33 is attached. Then, the pipe 30 is connected so that the connection port 14 is inserted into the proximal end side connection portion 32 of the pipe 30, and the pipe 30 is fixedly attached to the joint 10 fixed to the main body 2 of the shower head 1. (For example, refer to Patent Document 1).

JP 2001-128872 A (FIGS. 1 and 2)

  By the way, in the assembly work of the shower head 1, after fixing the joint 10 and the pipe 30 to the main body 2 of the shower head 1 in this way, the joint 30 and the pipe 30 are connected to the distal end side connection portion 35 of the shower head 1. A member such as the inner 50 to be accommodated is often attached. However, in the conventional fixing structure of the internal flow path member described above, the positioning of the pipe 30 in the direction around the axis is not correct. Therefore, the position of the pipe 30 tip side connection portion 35 should be originally positioned when the inner 50 is attached. It may deviate from the direction. In particular, as shown in FIG. 8, when the main body 2 of the shower head 1 is bent and the tip side of the pipe 30 is bent and formed accordingly, the positioning around the axis of the pipe 30 is slightly Even if it goes wrong, the position of the distal end side connecting portion 35 is greatly displaced so as to shake the head. Even if the pipe 30 is not bent or formed, it is not desirable that the pipe rotates from the normal direction when a member such as the inner 50 needs to be accurately attached to the pipe 30. . Furthermore, even when the positioning of the pipe 30 in the direction around the axis is accurate, the pipe 30 fixed to the connection port 18 of the joint 10 swings with the connection port 18 as a fulcrum, and the pipe 30 tip side When the inner part 50 is attached, the position of the connection part 35 may shift from the place where it should originally be located.

  In these cases, it is difficult to attach the inner 50 or the like attached to the tip of the pipe 30 and the workability is deteriorated.

  Further, in recent years, a shower head 1 in which the cross section of the main body 2 of the shower head 1 is formed flat or the thickness of the main body 2 of the shower head 1 is made thin may be used due to design requirements. For this reason, depending on the material, there is a problem that the strength of the surface of the main body cannot be sufficiently secured and the quality of the shower head 1 is deteriorated, for example, if a strong force is applied to the surface of the main body of the shower head 1 It was.

The present invention eliminates the problems of the fixing structure of the internal flow path member of the conventional shower head described above, and positioning the distal end side connection portion of the pipe to which the proximal end side connection portion is fixed with respect to the joint. by more precisely, it shall be the object of providing a fixing structure of the inner flow path member of the shower head which can improve the workability of the work of attaching member attached to the distal end side connecting portion of the pipe.

  In order to solve the above problems, means taken by the present invention will be described below. The structure for fixing the internal flow path member of the shower head according to the present invention includes a joint that is fixed to the shower head main body and to which the shower hose is connected, and hot water can be circulated therein, and the tip side connection portion thereof is different. A member is attached, and the base end side connection portion is a fixing structure of the internal flow path member of the shower head that is fixedly inserted and connected to the joint, and is around the longitudinal axis of the flow path member The fixing structure for the internal flow path member of the shower head, wherein either the fitting part or the fitted part for positioning is provided on the flow path member side and the other is provided on the joint side (claim) 1).

  By providing such a fitting part and a fitted part, it is possible to prevent a positional shift around the axis of the internal flow path member. In addition, the fitting of the fitting portion and the fitted portion can prevent the internal flow path member from swinging in the fitting direction. Therefore, the attachment work of another member attached to the tip side connection part of the internal channel member can be facilitated. Specifically, for example, it is possible to prevent the distal end side connecting portion of the pipe, which is an internal flow path member, from rotating in the normal mounting direction and causing a displacement or swinging with the pipe proximal end side as a fulcrum. In addition, it is possible to facilitate the connection work of components such as the inner and shower face units connected to the distal end side connection portion.

  The "fitting part" and the "fitted part" need only be in a shape necessary for the flow path member inserted and connected to the joint to be positioned around its axis, for example, a protrusion Or a protrusion and a recess into which the protrusion is fitted. The “internal flow path member” refers to a member that can circulate hot water and water inside the pipe and the like described above.

  Further, the above-described invention may be applied to a shower head in which the tip end side of the internal flow path member is bent or curved.

  When the distal end side of the internal flow path member is bent or curved, even if the positioning of the internal flow path member in the direction around the axis is slightly shifted, the position of the distal end side connecting portion greatly shakes the neck. Although it will shift | deviate, since the possibility of such a malfunction can be improved significantly by applying the fixing structure of the internal flow path member of this invention, it is suitable.

Further, as a fixed structure of another internal flow path member, and joint shower hose is connected is fixed to the shower head body, both hot and cold water inside can be distributed, a separate member on the distal end side connecting portion Is attached to the joint, and is fixed to the joint by inserting and connecting to the joint. The shower head main body is fixed to the outer peripheral surface of the flow path member. It is also possible to provide a fixing structure for the internal flow path member of the shower head, in which a contact portion capable of supporting the inner peripheral surface side of the shower head is formed .

  By forming such a contact portion, the inner peripheral surface of the shower head main body can be supported by the contact portion from the inside of the shower head, the strength of the main body can be improved, and the deflection of the surface of the main body can be prevented. be able to. As described above, it is particularly effective when used for a shower head having a flat cross-sectional shape or a shower head body in which the body itself is formed thin. The abutment portion is sufficient if it can support the inner peripheral surface of the shower head body, and is not limited to the abutment portion that is supported in advance. Also included is an abutting portion that is supported for the first time and prevents further bending. Further, it is sufficient if the “inner peripheral surface side” of the shower head body can be supported, and in addition to the case of supporting by directly contacting the inner peripheral surface, a mode of supporting through some member is also included.

According to the first and second aspects of the present invention, the fixing structure of the internal flow path member of the shower head is configured as described above, and the internal flow path member can be positioned in the direction around the axis. the mounting work of another member connected to the distal end side connecting portion of the member Ru can be facilitated.

  Next, an embodiment of the fixing structure of the internal flow path member of the shower head of the present invention will be described in detail with reference to the drawings. FIG. 1 and FIG. 2 show a fixing structure X for fixing a pipe 30, which is an example of an “internal flow path member” of the shower head 1, to the main body 2 of the shower head 1. The entire shower head 1 is formed in a vertically long bottomed cylindrical shape in which the head portion 4 is slightly bent, and its cross section is formed in an oval shape and is formed in a flat shape as a whole. The shower head 1 is provided with a shower face cover 80, a shower face 70, an inner 50, and the main body 2 of the shower head 1. Further, a pipe 30 for supplying hot water in the direction of the head part 4 of the main body 2 and a joint 10 for accommodating and fixing the pipe 30 in the base end side of the gripping part 3 are provided in the gripping part 3 of the main body 2. ing. A shower hose (not shown) is connected to the connection port 18 on the proximal end side of the joint 10, and hot water is supplied to the shower head 1.

  The joint 10 is formed in a cylindrical shape having an oval cross section, is formed in a shape that is slidably fitted into the grip portion 3 of the main body 2 of the shower head 1, and is provided so as to be accommodated and held in the grip portion 3. It has been. On the base end side of the joint 10, a circumferential groove 12 formed with a diameter smaller than the outer diameter of the main body of the joint 10 is provided. Moreover, the recessed part 13 in which the protrusion 40 of the pipe 30 mentioned later is fitted is provided in the edge part at the front end side. The concave portion 13 is an example of the “fitted portion” in the present invention. Two recesses 13 are formed at predetermined positions along the axial direction of the joint 10 at two positions facing each other in the cross-sectional short direction of the joint 10.

  In addition, as shown in FIG. 2, the connection port 14 is provided in which the proximal end side connection portion 32 of the pipe 30 is provided so as to be insertable and connectable inside the joint 10 on the distal end side slightly from the portion where the circumferential groove 12 is provided. Is formed. A protrusion 16 projecting inward is provided on the inner peripheral surface on the back side of the connection port 14, and when the pipe 30 is inserted and connected to the connection port 14, the end surface on the proximal end side of the pipe 30 is The pipe 30 is positioned in the insertion direction of the connection port 14 by being locked to the protrusion 16. Further, a locking protrusion 17 is provided on the outer peripheral surface of the joint 10 on the base end side with respect to the circumferential groove 12, and when the joint 10 is inserted into the grip portion 3, the locking protrusion is formed. The joint 10 is positioned in the axial direction of the grip portion 3 by 17 being engaged with the step portion 8 on the base end side of the grip portion 3. Further, on the base end side of the joint 10, a connection port 18 provided with a shower hose connection fitting (not shown) is provided.

  The pipe 30 is an example of an “internal flow path member” according to the present invention, and extends along the insertion direction of the connecting portion 52 of the inner 50 attached to the head portion 4 bent with respect to the grip portion 3. The tip is formed in a cylindrical overall shape having a bent portion 34 formed by bending. Further, the seal member 33 for watertightness with the connection port 14 of the joint 10 described above is provided on the outer peripheral surface of the proximal end side connection portion 32, and the watertightness with the connection portion 52 of the inner 50 is provided on the outer peripheral surface of the distal end side connection portion 35. Seal members 33 are attached to each other. In addition, on the outer peripheral surface of the proximal end of the bent portion 34, a protrusion that can contact the end surface of the connecting portion 52 in order to position the connecting portion 52 in which the bent portion 34 is inserted and connected in the inserting direction. 36 is provided around.

  Also, on the upper and lower sides of the outer peripheral surface near the center of the straight portion 38 of the pipe 30, protrusions 40 that fit into the concave portions 13 of the joint 10 described above are respectively provided along the axial direction of the straight portion 38. Yes. The protrusion 40 is an example of the “fitting portion” of the present invention and an example of the “contact portion”. The protrusion 40 is formed in the shape of an elongated rectangular plate, and the length thereof is inserted and connected to the back end of the pipe 30 with respect to the connection port 14 of the joint 10 as shown in FIGS. In this case, a slight gap Y is formed between the base end side connecting portion 32 and the back end of the recessed portion 13, and the bent portion 34 is provided so as to slightly protrude from the recessed portion 13. Further, as shown in FIG. 4, the height of the two opposing ridges 40 is the same as the distance between the outer peripheral surfaces in the short direction of the joint 10, and at the same time, the gripping portion of the shower head 1. 3 is provided to be the same as the distance between the inner peripheral surfaces, can support the grip portion 3 by contacting the inner peripheral surface of the grip portion 3, and can reinforce the grip portion 3 in the short direction. It is provided as follows.

  As shown in FIGS. 3 and 4, the joint 10 and the pipe 30 are, as described above, the base end side connection portion 32 of the pipe 30 is inserted and connected to the connection port 14 of the joint 10, and the ridges. 40 is fitted into the recess 13 and is fixed while being positioned around the axis of the pipe 30 with respect to the joint 10.

  As shown in FIG. 1, the pipe 30 and the joint 10 fixed in this way are inserted into the grip portion 3 from the opening 7 on the base end side of the grip portion 3 of the shower head 1 from the tip end side of the pipe 30. . The joint 10 is housed and held on the back side of the opening 7. At this time, the bush 11 is fitted and attached to the circumferential groove 12 from the attachment hole 5 of the grip 3, and the joint 10 is prevented from coming off from the grip 3. I do.

  Further, the head portion 4 on the distal end side of the main body 2 of the shower head 1 is slightly bent with respect to the grip portion 3, and an inner 50 or the like is provided on the inner side surface of the bent portion of the head portion 4. Is opened, and the inner 50 and the like are accommodated in the accommodation chamber 6.

  Next, the inner 50, the shower face 70, and the shower face cover 80 will be described with reference to FIG. The inner 50 is formed in an overall cylindrical shape having a substantially elliptical cross section, and a connecting portion 52 is provided on the lower surface of the inner 50 so that the distal end side of the pipe 30 is inserted and connected. The inner 50 is an example of “another member” attached to the distal end side connection portion of the pipe 30 which is an example of an “internal flow path member”. In addition, a seal member 54 is mounted on the outer peripheral surface around the axis of the inner 50 near the connecting portion 52 for watertightness with the shower face 70 that covers the inner 50. In addition, a rectangular recess 58 that is slightly recessed for mounting and fixing the strainer 56 is formed on the side surface of the inner 50. An opening 60 is opened near the center of the recess 58. The opening 60 is formed in a vertically long, substantially rectangular shape toward the outer side of the inner 50. As shown in FIG. 2, the opening 60 communicates with the connection portion 52 to which the distal end side connection portion 35 of the pipe 30 is connected via the inflow chamber 62.

  The shower face 70 is formed in an overall cylindrical shape having a substantially elliptical cross section, and has a bottomed cylindrical shape in which the inner 50 can be inserted from the bottom opening 72 so that the inner 50 can be accommodated and held therein. Is formed. On the front side of the shower face 70, an oval face portion 74 projects from the front side. 65 sprinkling holes 76 are arranged substantially uniformly in the face portion 74, and the whole sprinkling holes 76 are also arranged in an elongated oval shape. Further, on the left and right sides of the main body of the shower face 70 with the face portion 74 interposed therebetween, there are provided locking projections 78 that are locked on locking holes 82 of a shower face cover 80 described later. And the inner 50 to which the strainer 56 is attached is inserted into the shower face 70, and these are integrated into the accommodating chamber 6 through the opening 7 of the head portion 4, while the connecting portion of the inner 50. The distal end portion of the pipe 30 is inserted and connected in 52.

  The shower face cover 80 is formed in an overall shape in which a cylinder having a substantially oval cross section is divided in half in the vertical direction, and is provided in a shape that can be covered on the face portion 74 side of the shower face 70 described above. . In the center of the front side of the shower face cover 80, an oval opening 84 is formed so that the face 74 can be fitted and exposed.

  In addition, on the left and right side portions of the shower face cover 80, there are provided locking holes 82 that are locked on the above-described locking protrusions 78 of the shower face 70. Further, a tongue piece 86 projects from the upper end surface of the shower face cover 80 toward the rear of the shower face cover 80, and the tongue piece 86 extends from the upper wall surface near the opening 7 of the storage chamber 6 of the shower head 1. A locking hole 88 for locking the protruding locking protrusion 9 is opened. In addition, two locking projections 90 that are locked to the lower portion of the opening 7 of the storage chamber 6 are provided on the inner side of the lower end of the shower face cover 80. The shower face cover 80 is fixed to the shower head 1 by the locking hole 82 being locked to the shower face 70 and the locking hole 88 and the locking projection 90 being locked to the head portion 4.

  As described above, when the pipe 30 is assembled with the joint 10, the protrusion 40 and the concave portion 13 are fitted in the direction around the axis, and the pipe 10 is held so that the joint 10 is fixed. Since the position of the bent portion 34 to which the inner 50 is connected is determined at a predetermined position with respect to the grip portion 3, the head portion at the tip of the grip portion 3 is positioned. The positioning is appropriately performed with respect to the inner 50 accommodated in the four accommodating chambers 6, so that the connection work of inserting the distal end side connection portion 32 of the pipe 30 into the connection portion 52 of the inner 50 can be easily performed. Become.

  In addition, the pipe 30 has a protrusion 40 in contact with the inner peripheral surface of the grip portion 3 in the direction of the cross section of the joint 10 (the direction between the opposing recesses 13) with respect to the joint 10. On the other hand, in the longitudinal direction of the cross section of the joint 10, the protrusion 40 is fitted in the recess 13, so that the protrusion 40 swings in a direction orthogonal to the direction in which the protrusion 40 faces. Movement is regulated. Therefore, also from this point, the insertion and connection work of the connecting portion 52 of the inner 50 can be easily performed. In addition, when the seal member 33 is interposed between the joint 10 and the pipe 30 and the joint 10 are inserted and connected, the vibration of the pipe with respect to the joint 10 is remarkable due to the seal member 33 being interposed. Therefore, it is particularly effective for preventing the rocking in such a case.

  At the same time, the ridge 40 abuts on the inner peripheral surface of the grip portion 3 to support the grip portion 3 and reinforces the grip portion 3 in the short direction. In particular, since the pipe 30 is formed with a small diameter with respect to the grip portion 3 and the joint 10 and the cross section is also formed in a substantially circular shape, the pipe 30 has sufficient strength in the short direction of the grip portion 3, so This is effective for reinforcing the grip portion 3 formed in a circular shape in the lateral direction. Further, in this example, in particular, the protrusion 40 is provided on the pipe 30 so as to be positioned approximately at the center in the longitudinal direction of the grip portion 3, and supports the grip portion 3 at approximately the center in the longitudinal direction of the grip portion 3. Thus, it is possible to effectively prevent bending of the surface of the grip portion 3 over the entire grip portion 3.

  The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the protrusions 40 are provided in the pipe 30 and the recesses 13 are provided in the joint 10, but as shown in FIG. By reversing the “part”, the concave portion 100 may be provided on the pipe 30 side, and the protrusion 102 may be provided on the joint 10 side.

  Further, the number of the ridges 40 is not limited to two, and as shown in FIG. In this example, the protrusions 40 are provided at substantially equal intervals, and the top, bottom, left, and right of the main body 2 of the shower head 1 can be reinforced at the top, bottom, left, and right of the pipe 30. Like the shower head 1 described above, the present invention is not limited to the case where only the reinforcement in the short direction of the cross section of the grip portion 3 is necessary, but is a shower head having a substantially circular cross section. Therefore, it is suitable for a shower head that requires reinforcement at the top, bottom, left, and right of the cross section.

  Moreover, as shown in FIG. 7, it is also possible to apply to the pipe 104 which does not provide a bending part. Further, in this example, the “fitting part” and “fitted part” referred to in the present invention are not provided, but the protrusion 106 contacting the inner peripheral surface of the main body 2 of the shower head 1 is provided on the outer peripheral surface of the pipe 104. It is possible to reinforce the main body 2 of the shower head 1. Even in such a case, the protrusion 106 is not limited to be provided so as to be in direct contact with the inner peripheral surface of the gripping portion 3, but by being in contact with the inner peripheral surface of the joint 10, the gripping portion 3 is interposed via the joint 10. The inner peripheral surface may be reinforced. Further, in such a case, it is preferable that the main body 2 of the shower head 1 can be stably supported by providing a wide width of the protrusion 106 in particular.

It is a disassembled perspective view of the shower head using the fixing structure of the internal flow path member of this invention. It is a side view longitudinal cross-sectional view of the shower head of FIG. It is a perspective view of a pipe and a joint. FIG. 3 is a cross-sectional view taken along line A-A ′ of FIG. 2. It is a perspective view of a pipe and a joint using another internal flow path member fixing structure. FIG. 10 is a perspective view of a pipe and a joint using another internal flow path member fixing structure. FIG. 10 is a perspective view of a pipe and a joint using another internal flow path member fixing structure. It is a side view longitudinal cross-sectional view of the shower head using the fixing structure of the conventional internal flow path member. It is a disassembled perspective view which shows a part of shower head of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Shower head, 2; Main body, 3; Holding part, 4; Head part, 5; Mounting hole, 6: Accommodating chamber, 7: Opening part, 8: Step part, 9: Locking protrusion, 10: Joint, 11 Bush, 12; circumferential groove, 13; recess, 14; connection port, 16; projection, 17; locking projection, 18; connection port, 30; pipe, 32; proximal end side connection portion, 33; 34; bending portion, 35; tip side connection portion, 36; protrusion, 38; straight portion, 40; protrusion, 50; inner, 52; connection portion, 54; seal member, 56; strainer, 58; Opening, 62; inflow chamber, 70; shower face, 72; bottom opening, 74; face part, 76; sprinkling hole, 78; locking projection, 80; shower face cover, 82; Opening, 86; tongue, 88; locking hole, 90; locking projection, 100; concave , 102; protrusion 104; pipe, 106; ridges, X; fixed structure, Y; gap.

Claims (2)

A joint to which the shower hose is connected while being fixed to the shower head main body, and hot water can be circulated inside, and a separate member is attached to the distal end side connection portion, and the proximal end side connection portion is connected to the joint. It is a fixing structure of the internal flow path member of the shower head that is inserted and connected to be fixed,
One of the fitting portion and the fitted portion that are positioned around the longitudinal axis of the flow path member is provided on the flow path member side, and the other is provided on the joint side. The internal flow path member fixing structure. The fixing structure of the internal flow path member of the shower head according to claim 1, wherein a distal end side of the internal flow path member is bent or curved.

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