JP6441758B2 - Water supply to hot water mixer tap and hot water supply hose assembly mechanism - Google Patents

Description

  The present invention relates to a water supply to a hot and cold water mixing tap and a hot water supply hose assembly mechanism.

  Conventionally, as an assembly mechanism of this type, there is a mechanism that uses a bolt to fix a hot and cold water mixing tap provided on a counter such as a kitchen sink, a wash bowl, and a bathtub (see Patent Documents 1 and 2). The hot and cold water mixing tap has a water inlet hole and a hot water inlet hole on the lower surface side of the body of the hot and cold water mixing stopper body, and a female thread portion is provided in each of the water inlet hole and the hot water inlet hole. Provided with pipe joints with male threaded parts formed at the upper end to be screwed using an adhesive, both pipe joints are inserted into through-holes opened in the counter, and water supply hoses and hot water supply hoses are passed through these pipe joints. Are respectively connected to the main body of the hot and cold water mixing plug, and provided with a female thread portion for screwing a horseshoe fitting mounting bolt on the lower surface side of the trunk, and is screwed to the bolt inserted into the through hole and the outer peripheral surface of the bolt. The hot and cold water mixing faucet body is configured to be fixed to the upper surface of the counter in a state where the lower surface of the counter is pressed by the horseshoe fitting in the fastening operation with the nut.

Japanese Patent No. 3249903 Japanese Patent No. 3317474

  However, in the above prior art, the pipe joint connected to the water supply hose and the hot water supply hose, and the horseshoe fitting mounting bolt are screwed together to the body of the hot and cold water mixing plug body. For this reason, there is a problem in that both parts need to be threaded at the time of production, which is troublesome. Also, when assembling parts that connect each pipe joint to the body and assemble the water supply hose and hot water supply hose, it takes time to apply the adhesive to prevent screw loosening and also to tighten the screws themselves. There is a problem that it takes time and effort.

  The present invention has been made in consideration of the above-mentioned matters, and a pipe joint connected to each of a water supply hose and a hot water supply hose and a horseshoe fitting mounting bolt are simply connected to the body of the hot water mixing plug main body. It is an object of the present invention to provide a hot water mixing tap and a hot water supply hose assembly mechanism that can be fastened in a component manufacturing process and an assembly process.

In order to achieve the above object, in the invention according to claim 1 of the present application, a water inlet hole and a hot water inlet hole are opened in the body of the hot and cold water mixing plug body, and upper ends are respectively attached to the water inlet hole and the hot water inlet hole. In a hot and cold water mixing tap in which the water supply hose and hot water supply hose are connected to the hot and cold water mixing plug main body through a pipe joint, respectively, a retaining wire made of a single bent wire or plate material is used to prevent the water supply hose and hot water supply hose from coming off. On the other hand, each pipe joint has an engagement groove with which the engagement portion of the retaining member can be engaged, and the cylinder has the engagement groove of each of the attached pipe joints. Provided is a mechanism for water supply and hot water supply hose assembly to a hot and cold water mixing tap in which a retaining member insertion opening located and a fitting opening portion where a tip end portion of the retaining member touches are formed.

In addition, a water inflow hole and a hot water inflow hole are opened in the body of the hot and cold water mixing plug body, and a pipe joint having an upper end attached to each of the water inflow hole and the hot water inflow hole is inserted into the through hole provided in the counter, and the counter The hot and cold water mixing faucet body is fixed to the upper surface of the counter in a state where the upper surface or the lower surface of the water pipe is pressed, and the water supply hose and the hot water supply hose are respectively connected to the hot water and water mixing plug body through pipe joints. In order to prevent the hose and hot water supply hose from coming off, a metal plate-like retaining member is provided in a bent shape, while each pipe joint has an annular shape formed so that an O-ring can be fitted on the downstream side of the upper end portion. An O-ring groove, an engagement groove that can be engaged with an engagement portion of the retaining member on the upstream side of the upper end portion; and Person in charge It may be water and hot water hose assembly mechanism for the mixing faucet having grooves is retaining member insertion opening positioned are formed. In the present invention, the fact that the water inflow hole and the hot water inflow hole are formed in the body of the hot and cold water mixing plug body means, for example, in FIG. 1 (A) and FIG. Means a through-hole formed so as to penetrate from the lower surface to the upper surface of the body in the direction shown). In the present invention, the fact that the upper end portion of the pipe joint is attached to the water inflow hole means that, for example, the upper end portion of the pipe joint is connected to, for example, the water inflow hole (through hole) in FIG. Means a state of being inserted into the upper end insertion hole formed at the downstream inlet of the hole through the O-ring so as to be able to be sealed, and thereby the body of the hot and cold water mixing plug body fixed to the upper surface of the counter, It is possible to prevent water from leaking from the connecting portion with the upper end of the pipe joint connected to the water supply hose.
In another aspect of the present invention, the water inflow hole and the hot water inflow hole are formed in the body of the hot and cold water mixing plug main body, and the upper ends are respectively attached to the water inflow hole and the hot water inflow hole. In a hot and cold water mixing tap in which the water supply hose and hot water supply hose are connected to the hot and cold water mixing plug main body through a pipe joint, respectively, a retaining wire made of a single bent wire or plate material is used to prevent the water supply hose and hot water supply hose from coming off. On the other hand, each pipe joint has an engagement groove with which the engagement portion of the retaining member can be engaged, and the cylinder has the engagement groove of each of the attached pipe joints. A positioning member insertion opening is formed, and
The retaining member is formed in a symmetrical shape with respect to the center line so as to have a pair of portions forming an opening portion,
A fitting opening is formed in the cylinder so as to contact the distal ends of the pair of parts of the retaining member inserted into the cylinder from the opening part side through the retaining member insertion opening. A water supply hose assembly mechanism is provided.

From another point of view, the invention according to claim 3 of the present application is such that a water inlet hole and a hot water inlet hole are formed in the body of the hot and cold water mixing plug body, and upper ends are respectively attached to the water inlet hole and the hot water inlet hole. In a hot and cold water mixing tap in which the water supply hose and hot water supply hose are connected to the hot and cold water mixing plug main body through a pipe joint, a disconnection made of a single bent wire or plate material is used to prevent the water supply hose and hot water supply hose from coming off. While providing a stop member, each pipe joint has an engagement groove with which an engagement part of the above-mentioned retaining member can be engaged, and the above-mentioned cylinder is provided with the above-mentioned engagement groove of each attached pipe joint. And a bolt having an annular bolt side engaging groove with which the engaging portion of the retaining member can be engaged is formed on the upper end side. Bolt side engaging groove Water supply and hot water supply hose assembly mechanism configured to be able to connect and hold the bolt and both pipe joints by engaging with the engagement grooves formed at the upper ends of both pipe joints I will provide a. In this case, like the water inflow hole and the hot water inflow hole, a bolt hole for inserting a bolt is provided on the lower surface side of the trunk, and a bolt inserted into the bolt hole and a nut screwed onto the outer peripheral surface of the bolt are provided. It is preferable that the hot and cold water mixing stopper main body is fixed to the upper surface of the counter in a state in which the lower surface of the counter is pressed by the mounting bracket in the fastening operation.

Further, in the invention according to claim 4 of the present application, an outflow pipe insertion hole for inserting an outflow pipe for allowing the hot / cold water mixture to flow out is opened in the body of the hot / cold water mixing stopper main body, and the outflow pipe is connected to the upper end side. An annular outflow pipe side engaging groove that can be engaged with the engaging portion of the stop member, and the retaining member is formed in the outflow pipe side engaging groove and the upper end portions of both pipe joints. The water supply and hot water supply hose to the hot and cold water mixing tap according to any one of claims 1 to 3 , wherein the outlet pipe and both pipe joints can be connected and held by engaging with each other in an engagement groove. Provide an assembly mechanism. In this case, like the water inflow hole, the hot water inflow hole, and the bolt hole, the outflow pipe insertion hole is provided on the lower surface side of the trunk, and the hose connected to the water discharge head is connected to the hot water mixing plug body through the outflow pipe. Further, similarly to the water inflow hole, the hot water inflow hole, and the outflow pipe insertion hole, a bolt hole for bolt insertion is provided on the lower surface side of the trunk, and the bolt inserted into the bolt hole and the outer peripheral surface of the bolt are provided. It is preferable that the hot and cold water mixing plug main body is fixed to the upper surface of the counter in a state where the lower surface of the counter is pressed by the mounting bracket by the fastening operation with the nut to be screwed.

In the invention according to claim 5 of the present application, the retaining member includes a pedestal that covers a lower end peripheral surface of the trunk in which the opening for inserting the retaining member is formed, or a water discharge pipe that covers the peripheral surface of the trunk. The water supply to the hot and cold water mixing tap according to any one of claims 1 to 4 and the hot water supply hose assembly mechanism are provided so as to be held in the body by the cover body. In this case, the retaining member comes out of the retaining member insertion opening by fitting with the retaining member insertion opening and fitting the base or the cover body with the water discharge pipe (from the trunk). It can be held in the cylinder in a state where it is prevented from coming out. For example, regarding the fitting between the retaining member and the retaining member insertion opening, the retaining member is in contact with the retaining member insertion opening (for example, the retaining member insertion opening 30 described later). A pair of straight portions 20a and 20a of the retaining member 20 are respectively sandwiched between the pair of outer openings 32 and 32), thereby preventing the retaining member from being deformed and a water supply hose (for example, flexible) Hose) and hot water supply hose (for example, a flexible hose), and the bolts and the outflow pipe of the locking object can be prevented from falling off the trunk.

  Compared to the conventional screw fastening structure in which the pipe joint connected to the water supply hose and the hot water supply hose is screwed to the body of the hot water mixing plug main body, the invention according to claim 1 of the present application relates to the retaining member. By adopting a locking structure between the joint portion and the engagement groove of the pipe joint, the component manufacturing process and the assembly process can be simplified. That is, in the invention according to claim 1 of the present application, in order to prevent the water supply hose and the hot water supply hose from coming off, a retaining member made of a single bent wire or plate is provided, and each pipe joint is provided with the retaining member. An engaging groove is formed in which the engaging portion of the member can be engaged, and the retaining groove is inserted into the barrel where the engaging groove of each pipe joint attached to the water inflow hole and the hot water inflow hole is located. An opening is formed, and a retaining member is inserted into the retaining member insertion opening in a state where the engagement groove is positioned, and both pipe joints in which upper ends are respectively attached to the water inlet hole and the hot water inlet hole. By adopting a locking structure in which the engaging portion of the retaining member is engaged with the formed engaging groove, the retaining member can be engaged with the engaging groove, and the body of the hot water mixing plug body Both pipe joints can be connected to Te, the component fabrication process and assembling process for connecting the water supply hose and hot water hose to the body of the mixing faucet body, can be simplified as compared with the prior art employing a screw fastening structure.

  In addition, the structure of the conventional product that employs a screw fastening structure is when the barrel of the hot and cold water mixing plug body is made of brass. When attempting to make the barrel resin, it is difficult to mold a screw with a small pitch during molding. Even if it is possible, there still remains a concern of water leakage due to damage after aging due to the stress due to screw fastening. In addition, the conventional product is not easily disassembled and recyclable by applying an adhesive for preventing screw loosening. On the other hand, the invention according to claim 1 of the present application has the following advantages by using the above-described locking structure as the screw fastening structure. That is, it becomes easy to make the body of the hot and cold water mixing plug body resin, which leads to cost reduction. Of course, the barrel of the hot and cold water mixing plug body of the invention according to claim 1 of the present application can be made of metal such as brass. Furthermore, in the invention according to claim 1 of the present application, the necessity for adhesion is eliminated, so that the decomposability is improved and the recyclability is improved.

  In addition, an annular groove having an engaging groove with which an engaging portion of a retaining member can be engaged on the upstream side of the upper end portion of each pipe joint, and an O-ring can be fitted on the downstream side of the upper end portion. When the O-ring groove is provided, each pipe joint mounting portion by the O-ring, that is, from the connection portion (insertion portion) between the barrel of the hot and cold water mixing plug body fixed to the upper surface of the counter and the upper end portion of the pipe joint is inserted. Since the leakage structure can be prevented and the locking structure is used without using the screw fastening structure, the above-mentioned inconvenience (the concern about water leakage remains) due to the screw fastening structure may occur even when the cylinder is made of resin. It disappears.

  In addition, compared to a conventional screw fastening structure in which a pipe joint connected to each of a water supply hose and a hot water supply hose, for example, a horseshoe fitting mounting bolt, is screwed to the body of the hot water mixing plug main body. The invention according to No. 2 employs a locking structure of the engaging portion of the retaining member, the engaging groove formed in the upper end portions of both pipe joints, and the annular bolt side engaging groove on the upper end side of the bolt. As a result, the part manufacturing process and the assembling process can be greatly simplified.

In the invention according to claim 4 of the present application, a locking structure is used without using a screw fastening structure. In other words, the invention according to claim 4 of the present application has an annular outflow pipe side engagement groove on the upper end side of the outflow pipe through which the hot / cold water flows out, so that the engaging portion of the retaining member can be engaged. By adopting a locking structure between the engaging portion of the retaining member, the engaging groove formed at the upper end of both pipe joints, and the outflow tube side engaging groove, Compared with the case where the pipe joint connected to the water supply hose and the hot water supply hose and the outflow pipe are screwed together, the part manufacturing process and the assembly process can be greatly simplified.

  Further, the present invention provides an engagement portion of a retaining member, an engagement groove formed at the upper end portions of both pipe joints, an annular bolt side engagement groove on the upper end side of the bolt, and a circle on the upper end side of the outflow tube. By adopting a locking structure with the annular outflow pipe side engaging groove, the present invention can be applied to the fact that the part manufacturing process and the assembling process can be greatly simplified.

In the invention according to claim 5 of the present application, the retaining member is fitted with the retaining member insertion opening and further fitted with the pedestal or the cover body with the water discharge pipe. The stopper member can be held in the cylinder in a state in which it is prevented from coming out from the opening for inserting the stopper member (outward from the cylinder).

(A) is the perspective view which shows the state which looked at the trunk | drum of the hot-water mixing stopper main body in one Embodiment of this invention from diagonally upward. (B) is a front view which shows the trunk | drum in the said embodiment. (C) is a side view showing the trunk in the embodiment. (D) is a rear view showing the trunk in the embodiment. (E) is a bottom view showing the trunk in the embodiment. (F) is a perspective view showing a state in which the body in the above embodiment is viewed obliquely from below. It is a top view which shows the metal plate-made retaining member in the said embodiment. It is a disassembled perspective view which shows the components assembly state in the said embodiment. It is a perspective view which shows the state after the components assembly | attachment in the said embodiment. It is composition explanatory drawing which shows the state after component assembly in the said embodiment. It is the sectional view on the AA line in FIG. In the above embodiment, a state in which a metal plate-made retaining member made of a metal plate of a part inserted into the barrel from the retaining member insertion opening is engaged with both pipe joints and bolts as seen from the bottom side of the barrel. is there.

  Hereinafter, embodiments of the present invention will be described. 1 to 7 show, for example, a pipe joint connected to a water supply hose and a hot water supply hose to a body of a faucet body (a hot water mixing faucet body) of a hot water mixing tap for a kitchen or a bathroom, One embodiment of the present invention formed by fastening a bolt is shown.

  1 to 6, the hot and cold water mixing plug body is a hot and cold water containing a valve member on the upper surface 1a of a substantially cylindrical block body formed with a mixing flow channel, a water flow channel j, and a hot water flow channel k. It has a mixing cartridge (not shown). The cartridge is housed in a cartridge cover (not shown) having a female screw threaded on a male screw (not shown) formed on the upper peripheral surface 2 of the barrel 1 on the lower peripheral surface of the inner wall. Further, a male screw (not shown) is formed on the lower peripheral surface 5 of the body 1 to be screwed into an internal screw 4a formed on an inner wall surface of a base 4 (see FIG. 5) covering the lower peripheral surface 5. ing. Then, the hot and cold water mixing plug body is counter 6 (FIG. 5) with the barrel 1 covered with a cylindrical cover body G with a water discharge pipe (see FIG. 5) having a water discharge pipe (not shown) attached to the peripheral surface. Reference) is fixed to the upper surface 6a. In addition, the valve stem of the cartridge is provided with a single lever (not shown) that adjusts the mixing ratio of hot water and water, and adjusts the amount of water discharged, including water stoppage. When the single lever is operated in the direction of water discharge, From the hot water mixing chamber, for example, mixed water passes through the mixed water outlet hole I formed in the barrel 1 (see FIGS. 1A and 4) and passes through a substantially intermediate portion of the barrel 1 [R in FIG. In the annular space portion shown in FIG. 6], the annular flow path communicating with the outflow hole I, that is, the annular flow path formed by the cover body G covering the cylinder and the outer peripheral surface of the cylinder, and finally communicating with the annular flow path. It is comprised so that it may discharge from a water discharge pipe. The water inflow hole W forming the water channel j is a through hole formed so as to penetrate from the lower surface 1b to the upper surface 1a of the body 1 in the vertical (height) direction (direction indicated by the Y axis) of the body 1 (see FIG. 6). It becomes more. The hot water inflow hole H forming the hot water flow path k is also a through hole formed so as to penetrate from the lower surface 1b to the upper surface 1a of the barrel in the Y direction. Reference numeral 7 denotes a pipe joint in which a lower end portion 7a (see FIG. 3) is connected to a water supply hose 15 and a hot water supply hose 16 each made of a flexible hose via a socket 8. As shown in FIGS. 3 and 6, the pipe joint 7 has an upper end 7 b of the pipe joint 7 for connection with the body 1, respectively, having a water inflow hole (through hole) W and a hot water inflow hole (through hole) H. A plurality of O-rings 12 are inserted in a sealable manner into insertion hole portions 10 and 11 for fitting the upper end of the pipe joint formed at the downstream side inlet (the lower side 1b side inlet of the barrel 1).

  Further, on the lower surface 1b side of the trunk 1, in addition to the upper end insertion hole portions 10 and 11, for example, a hexagonal column-shaped tip portion 22 with a downward outward flange f of a horseshoe bracket mounting bolt 14 (FIGS. 3 and FIG. 3) 5 is provided with a hexagonal bolt hole 13 (see FIGS. 7 and 5). The bolt hole 13 is bottomed. Then, the horseshoe fitting mounting bolt 14 inserted (attached) to the trunk 1 via the tip 22 is also used together with the pipe joint 7 inserted (attached) to the trunk 1 via the upper end 7b. Then, it is inserted into a through-hole h opened in the counter 6 in a state in which it is retained by a retaining member (plate material) 20 described later (see FIGS. 4 and 6). Then, by a fastening operation of the bolt 14 inserted through the through hole h and a nut (not shown) screwed onto the outer peripheral surface of the bolt 14, for example, by a fitting (not shown) such as a known horseshoe fitting. With the lower surface 6b of the counter 6 pressed and the water supply hose 15 and the hot water supply hose 16 connected to the barrel 1 via the pipe joint 7, the hot and cold water mixing plug body is fixed to the upper surface 6a of the counter 6. (See FIG. 5). In the XYZ axes orthogonal to each other shown in FIG. 5, the direction indicated by the X axis is the insertion direction of the retaining member 20 described later, the direction indicated by the Y axis is the height direction of the body 1, and Z The direction indicated by the axis is the arrangement direction of the water inlet hole W and the hot water inlet hole H.

Reference numeral 20 denotes a retaining member made of a single bent plate. This is configured by bending a single plate material, and in this embodiment, it is configured by bending a single metal plate material. The retaining member 20 is configured to prevent the water supply hose 15 and the hot water supply hose 16 from coming off from the body 1 (prevention of dropping from the body 1) and a flat surface in a state where the hot and cold water mixing plug body is fixed to the upper surface 6a of the counter 6. It is provided to prevent the bolt 14 in which the hexagonal column-shaped tip 22 is inserted into the hexagonal bolt hole 13 (preventing falling off from the barrel 1). The retaining member 20 has a required strength so as to hold the water supply hose 15, the hot water supply hose 16 and the bolts 14 to be used. In the retaining member 20 (see FIG. 2), three engagement portions M, N, and P are formed at appropriate positions corresponding to three assembly parts of the bolt 14, the water supply hose 15, and the hot water supply hose 16. . The retaining member 20 may be formed by bending a single metal wire (including a rod-shaped member) instead of a single metal plate. Moreover, as a material of the retaining member 20, a single plate or wire made of synthetic resin may be used in addition to a single metal plate or wire as long as the required strength can be obtained.

  On the other hand, each pipe joint 7 has a plurality of annular O-ring grooves 21 formed so that the O-ring 12 can be fitted on the downstream side of the upper end portion 7b. Further, on the upstream side of the upper end portion 7b, there are engaging grooves n and p that can be engaged with the engaging portions N and P of the retaining member 20, respectively. That is, the (water) pipe joint 7 has an engaging groove n (see FIG. 3) in which the engaging portion N (see FIGS. 2 and 7) can be engaged below the O-ring groove 21 (upstream side). An engagement groove p (see FIG. 3) in which the engagement portion P (see FIGS. 2 and 7) can be engaged is formed in the pipe joint 7 (for hot water) below the O-ring groove 21 (upstream). Side).

  Further, the horseshoe bracket mounting bolt 14 includes, in order from the upper end side, a rotation preventing hexagonal column-shaped end portion 22 with an outward flange f and a pair of engaging portions M, M of the retaining member 20. The engaging part M of the retaining member 20 and the engaging parts N, P are respectively connected to the bolt-side engaging groove m and the pipe joints 7. The bolt 14 and both pipe joints 7 can be connected and held by engaging with the engaging grooves n and p formed in the upper end 7b.

  Further, the retaining member 20 as a whole is composed of an elongated tape-like plate, and is formed in a symmetrical shape with respect to the center line L as shown in FIG. The retaining member 20 includes a pair of straight portions 20a and 20a that form an opening portion a, a pair of arc portions 20b and 20b that are curved in an arcuate shape from respective end portions of the straight portions 20a and 20a, and a pair of L-shaped portions 20c, 20c, a pair of connecting portions 20d, 20d connecting the L-shaped portions 20c, 20c and the arc portions 20b, 20b, and a single U-shaped portion connecting the L-shaped portions 20c, 20c 20e.

Further, the body 1 is provided with the engagement grooves n and p of the pipe joints 7 to which the upper end portions 7b are attached and the bolt side engagement grooves m of the bolts 14 to which the hexagonal column-shaped end portions 22 are attached. A retaining member insertion opening 30 is formed. This opening 30 is a cavity (two types of outer openings 31, 32 formed by cutting out the peripheral surface flesh 50 forming the lower end peripheral surface 5 of the body 1, and a space (in which the retaining member 20 is inserted). Inner opening). For example, the outer opening 31 is formed to have a larger circumferential length (opening length) than the interval (dimension) between the pair of connecting portions 20d, 20d. That is, as shown in FIG. 1 (D), the outer opening 31 has an opening length having a circumferential angle of 180 ° or more and smaller than 360 ° in the circumferential direction of the peripheral surface meat portion 50. The peripheral wall portion 50 is cut out so as to have a thickness larger than the thickness of the retaining member 20. Further, the two outer openings 32 and 32 are formed in such a size that the tip portions of the pair of straight portions 20a and 20a can be respectively inserted. The outer opening 31 is an insertion opening for inserting the retaining member 20 into the cavity from the straight portions 20a, 20a side (opening portion a side) to the U-shaped portion 20e. On the other hand, the two outer openings 32, 32 are used for a pair of fittings where the tip portions of the pair of straight portions 20a, 20a of the retaining member 20 inserted into the circumferential surface portion 50 (inside the cavity) are covered. It is an opening. In this case, the engaging portions M and M and the engaging portions N and P of the retaining member 20 are engaged with the bolt-side engaging grooves m and the engaging grooves n and p, respectively. Further, by appropriately setting the interval (dimension) between the engaging portions M and M, the engaging portions M and M can be firmly engaged in the bolt side engaging groove m. That is, in this embodiment, the engaging portions M, M are inserted into the engaging groove m from the inner peripheral surface side of the retaining member 20. On the other hand, the engaging portions N and P are inserted into the engaging grooves n and p from the outer peripheral surface side of the retaining member 20, respectively. Note that the shape of the retaining member 20 can be changed as appropriate. For example, a configuration in which the engaging portions N and P are respectively inserted into the engaging grooves n and p from the outer peripheral surface side of the retaining member 20 is adopted. May be. Moreover, the holding power with respect to the water supply hose 15, the hot water supply hose 16, and the volt | bolt 14 can be maintained by setting suitably the shear strength of the retaining member 20, a contact area, etc. FIG. As a result, the retaining member 20 is fitted to the straight portions 20a, 20a and the two outer openings 32, and fitted to the pedestal 4 (the U-shaped portion 20e of the retaining member 20 is within the pedestal 4). By being in contact with the wall surface, it can be held in the cylinder 1 in a state in which it is reliably prevented from coming out of the retaining member insertion opening 30 (outside opening 31) (outward from the cylinder 1).

  In addition, in this embodiment, although the structure which covers the opening 30 for retaining member insertion (outside opening part 31) with the base 4 which covers the lower end peripheral surface 5 of the trunk | drum 1 was employ | adopted, this invention is the whole circumferential surface of the trunk | drum 1. A structure may be employed in which the retaining member insertion opening 30 (outside opening 31) is covered by a cover body (not shown) with a water discharge pipe covering the opening. The opening length / thickness of the outer opening 31 and the size of the cavity that is the engaging space for the retaining member 20 can be appropriately set according to the size of the retaining member 20 to be used. Further, the material of the retaining member 20 is preferably made of metal. Further, the material of the barrel 1 is not limited to a metal such as brass, and a synthetic resin can also be applied. The pipe joint 7 and the socket 6 are preferably made of a metallic material.

  Thus, at the manufacturing site such as a factory, the engaging portion M and the engaging portions N and P of the retaining member 20 are previously connected to the bolt-side engaging groove m in the retaining member engaging space of the barrel 1 and both. The bolts 14 and both pipe joints 7 can be connected and held by engaging with the engaging grooves n and p formed in the upper end portion 7 b of the pipe joint 7. And as above-mentioned, since the base 4 (refer FIG. 5) covers the lower end peripheral surface 5 of the trunk | drum 1 in which the opening 30 for retaining member insertion is formed, it forms in the surrounding surface flesh part 50 of the trunk | drum 1. The retaining member 20 inserted into the inserted space covers the end portion of the pair of straight portions 20a, 20a and the outer openings 32, 32, and covers the lower peripheral surface 5 (outer opening 31). There is no concern that the retainer member 20 is held in the body 1 by the pedestal 4 and comes out of the outer opening 31 to the outside. That is, the engagement state of the plate member retaining member 20 is a state in which the front ends of the straight portions 20a and 20a of the retaining member 20 are in contact with the outer openings 32 and 32, so that the retaining member 20 is deformed. It is possible to prevent the bolt 14, the water supply hose 15 and the hot water supply hose 16 from falling off the body 1.

  In the present invention, as shown in the above embodiment, the engagement portion of the retaining member, the engagement groove formed in the upper end portion of both pipe joints, and the annular bolt side engagement on the upper end side of the bolt Not only the locking structure with the groove, but also the water inflow hole, the hot water inflow hole, the bolt hole, and the outflow pipe that allows the mixed water to flow out (for example, the outflow pipe that can be connected to the hose connected to the water discharge head) It can also be applied to a hot and cold water mixing plug main body in which an outflow pipe insertion hole is inserted, and in this case, the engagement portion of the retaining member, the engagement groove formed at the upper end portions of both pipe joints, and the outflow pipe By adopting a locking structure with the annular outflow pipe side engaging groove and the bolt side engaging groove formed on the upper end side of the part, the part manufacturing process and the assembling process can be greatly simplified.

DESCRIPTION OF SYMBOLS 1 Body 6 Counter 6a Counter upper surface 6b Counter lower surface 7 Pipe joint 7b Upper end part of a pipe joint 12 O-ring 13 Bolt hole for bolt insertion 14 Bolt 20 Retaining member 21 O-ring groove 30 Opening for retaining member W W Water inflow hole H Hot water inflow hole h Through hole M, N, P Engagement part n, p Engagement groove m Bolt side engagement groove

Claims (5)

A water inlet hole and a hot water inlet hole are opened in the body of the hot water mixer tap body, and a water supply hose and a hot water supply hose are connected to the hot water mixer tap body through pipe joints respectively attached to the water inlet hole and the hot water inlet hole. In the hot and cold water mixing taps to be connected, a water supply hose and a hot water supply hose are provided with a retaining member made of a single bent wire or plate to prevent the water hose from coming off, while each pipe joint is engaged with the retaining member. And a retaining member insertion opening in which the engaging groove of each of the attached pipe joints is located and a distal end portion of the retaining member. A water supply and hot water supply hose assembly mechanism for a hot and cold water mixing tap in which a fitting opening is formed. A water inlet hole and a hot water inlet hole are opened in the body of the hot water mixer tap body, and a water supply hose and a hot water supply hose are connected to the hot water mixer tap body through pipe joints respectively attached to the water inlet hole and the hot water inlet hole. In the hot and cold water mixing taps to be connected, a water supply hose and a hot water supply hose are provided with a retaining member made of a single bent wire or plate to prevent the water hose from coming off, while each pipe joint is engaged with the retaining member. The part has an engaging groove that can be engaged, and the barrel is formed with a retaining member insertion opening in which the engaging groove of each of the attached pipe joints is located .
The retaining member is formed in a symmetrical shape with respect to the center line so as to have a pair of portions forming an opening portion,
A fitting opening is formed in the cylinder so as to contact the distal ends of the pair of parts of the retaining member inserted into the cylinder from the opening part side through the retaining member insertion opening. water supply and hot water supply hose assembly mechanism of the mixing faucet you are. A water inlet hole and a hot water inlet hole are opened in the body of the hot water mixer tap body, and a water supply hose and a hot water supply hose are connected to the hot water mixer tap body through pipe joints respectively attached to the water inlet hole and the hot water inlet hole. In the hot and cold water mixing taps to be connected, a water supply hose and a hot water supply hose are provided with a retaining member made of a single bent wire or plate to prevent the water hose from coming off, while each pipe joint is engaged with the retaining member. And an opening for inserting a retaining member in which the engaging groove of each of the attached pipe joints is located, and an upper end side. A bolt having an annular bolt-side engagement groove with which the engagement portion of the retaining member can be engaged is formed, and the retaining member is formed on the bolt-side engaging groove and the upper end portions of both pipe joints. Engaged with the engagement groove The bolts and water supply and hot water supply hose assembly mechanism of the two pipe fitting to the hot and cold water mixing valve that is configured to be coupled maintained by causing. An outflow pipe insertion hole for inserting an outflow pipe for allowing the hot / cold water mixture to flow out is opened in the body of the hot / cold mixing tap body, and the outflow pipe is engageable with the engaging portion of the retaining member on the upper end side. An outflow pipe side engagement groove having an annular shape, and the outflow pipe is formed by engaging the retaining member with the outflow pipe side engagement groove and the engagement groove formed in the upper end portions of both pipe joints. The water supply to the hot and cold water mixing tap and the hot water supply hose assembly mechanism according to any one of claims 1 to 3 , wherein the two pipe joints can be connected and held together. The retaining member is configured to be held in the trunk by a pedestal that covers a lower end circumferential surface of the trunk where the retaining member insertion opening is formed, or a cover body with a water discharge pipe that covers the circumferential surface of the trunk. The water supply to the hot and cold water mixing tap according to any one of claims 1 to 4 and a hot water supply hose assembly mechanism.

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