JP2019178862A - Hot water supply port adapter for bathtub - Google Patents

Abstract

To provide a hot water supply port adapter for bathtub, attached to a wall part in a penetrated state, and capable of being generally connected by a pipe to a hot water supply unit outside the bathtub.SOLUTION: A hot water supply port adapter 100 for bathtub, attached to a side wall W of the bathtub in a penetrated state, and generally connected by a pipe to a hot water supply unit outside the bathtub includes in the side wall W outer surface side of the bathtub, a bathtub outer fixing member which has an outer cylinder part 12 attached to a side wall W inner surface side of the bathtub and screwed with a male screw member 2, and a pipe connecting part 14 (14a, 14b) connected with a joint member 8 connecting the bathtub and the hot water supply unit and becoming a flow passage communicated with the outer cylinder part 12. The pipe connecting part 14 (14a, 14b) is provided so as to make the connected joint member 8 (8a, 8b) rotatable between a direction from the rear side at least straight along a pipe axis of the bathtub outer fixing member 1, and a direction turning at a substantially right angle from that direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a hot water inlet adapter for a bathtub attached to a wall portion in a penetrating state and connected to a hot water heater outside the bathtub by piping.

  In recent years, hot water supply systems for bathtubs have a hot water filling function that sends hot water boiled in a hot water heater installed outside the bathtub into the bathtub, and the hot water in the bathtub is sucked into the hot water heater and further heated by the hot water heater. Many are provided with a reheating function for returning to the bathtub as high-temperature water.

  In such a hot water supply system, in order to form the circulation flow path between the inside of the bathtub, the hot water inlet adapter for bathtubs is attached to the bathtub side wall in a penetrating state.

  The bathtub hot water supply adapter includes a flow path forming member (partition member) for forming a predetermined flow path, a tank mounting member (male screw member) for attaching the partition member to the inner surface of the side wall of the bathtub, and the bathtub side wall. A tank external attachment member connected to the male screw member is provided, and a pipe connected to the water heater is connected to the outer pipe connection portion of the tank external attachment member (see Patent Document 1).

JP 2011-220777 A

  However, the outer tube connecting portion is, for example, a straight type in which the outer tube connecting portion in the outer tank mounting member projects straight from the rear end side along the tube axis of the outer tank mounting member, and the outer connecting portion is the outer tank mounting member. Two types of shapes, L-shaped extending in a direction bent substantially perpendicularly from the rear end to the tube axis of the pipe, should be used properly according to the positional relationship between the hot water supply adapter for the bathtub and the water heater Therefore, it is not general-purpose, and even if the shape of the outer pipe connection portion is one type, it is desired to be able to be attached regardless of the positional relationship between the installation location and the water heater.

  An object of the present invention is, for example, to provide a hot water inlet adapter for a bathtub that is attached to a wall portion in a penetrating state and can be connected to a water heater outside the bathtub for general piping.

  That is, this invention has the structure as described in following [1]-[4].

[1] A hot water outlet adapter for a bathtub attached in a penetrating manner to a side wall of a bathtub and connected to a hot water heater outside the bathtub by piping,
An outer cylinder part into which a male screw member attached to the inner surface of the side wall of the bathtub is screwed,
A pipe connecting the bathtub and the water heater is connected, and a pipe connecting portion serving as a flow path leading to the outer cylinder portion is provided on the side wall outer surface side of the bathtub.
The pipe connection portion is provided such that the connected pipe is rotatable at least along a pipe axis of the outside-tubing attachment member and between a direction that is bent substantially perpendicularly from the rear. Hot water adapter for bathtub.

[2] The pipe connecting portion is in contact with a coupling portion in which a joint member connected to an end portion of the pipe is fitted and coupled, and a surface of a flange portion provided at the end portion of the joint member. A flange portion having a surface,
With the flanges of the pipe connection portion and the joint member in contact with each other, a flange coupling member is attached and coupled to the outer periphery of both flange portions, and both the flange portions slide to allow the piping to rotate. It is comprised so that it may become. The hot water inlet adapter for bathtubs of the preceding clause 1 characterized by the above-mentioned.

[3] Either one of the pipe connection part or the joint member is formed with a convex part on the front end side with respect to the flange part, and on the other side, a concave part into which the convex part is fitted is a front end opening end. Formed in the part,
An annular groove formed on the outer peripheral surface of the convex part;
The hot water inlet adapter for bathtubs according to the preceding item 2, comprising: an O-ring mounted in the annular groove and pressed against the inner peripheral surface of the recess.

  [4] The hot water inlet adapter for bathtubs according to the item 2 or 3, wherein the flange coupling member is a quick fastener.

  According to the invention described in [1] above, the male screw member attached to the inner surface side of the bathtub side wall is attached to the side wall of the bathtub. The outer tube part to be screwed, the pipe connecting the bathtub and the water heater are connected, and the pipe connection part serving as a flow path connected to the outer cylinder part is provided on the side wall outer surface side of the bathtub, The pipe connection portion is provided so that the connected pipe can be rotated at least along the pipe axis of the tank outer mounting member from the rear at a substantially right angle direction. By connecting the pipe to the pipe connection section so that it can be rotated at least along the pipe axis from the rear to the direction of bending at a substantially right angle, the bathtub according to the positional relationship between the bathtub and the water heater It is necessary to prepare a hot water outlet adapter No longer a general can be used in the bathtub and water heater in a different positional relationship with only the present invention product.

  In addition, since the pipe is configured to be rotatable, for example, even in a bathtub whose position moves like a mechanical bathtub used for nursing care, the pipe rotates according to the movement of the bathtub. It can be suitably used without interfering with the movement of the bathtub.

  According to the invention described in [2] above, the pipe connecting portion includes a connecting portion in which a joint member connected to an end portion of the pipe is fitted and connected, and a flange portion provided at the end portion of the joint member. A flange portion having an abutting surface that abuts the surface, and in a state where the flange surfaces of the pipe connecting portion and the pipe are in contact with each other, a flange coupling member is attached and coupled to the outer periphery of both flange portions. Since the pipe is configured to be able to rotate by sliding the flange part, the pipe connecting part and the pipe are connected, both are connected by a flange connecting member, and the surfaces of the abutting flange parts are slid. The piping can be configured to be rotatable with a simple structure that is simply moved.

  In addition, since the pipe connection portion and the pipe can be firmly coupled simply by fitting the joint member in which the pipe is connected to the pipe connection portion and attaching the flange connecting member, the pipe and the joint member for connecting the bathtub and the water heater Connection work becomes easy.

  According to the invention described in [3] above, a convex portion is formed on the distal end side of the flange portion at either one of the pipe connection portion or the joint member, and the concave portion into which the convex portion is fitted. Is formed at the end of the opening on the front end side, and includes an annular groove formed on the outer peripheral surface of the convex portion, and an O-ring attached to the annular groove and pressed against the inner peripheral surface of the concave portion. When either one of the pipe connection portion or the joint member is inserted into the recess, the inner peripheral surface of the recess is pressed and high water tightness can be achieved.

  According to the invention described in [4] above, since the flange coupling member is a quick fastener, compared to the case where the pipe connection portion and the pipe are coupled using a member such as a screw, the flange coupling member is quick on the outer periphery of both flange portions. The pipe connecting part and the pipe can be coupled by a simple operation of only fitting the fastener.

It is sectional drawing of the hot-water supply port adapter for bathtubs provided with the outer tank attachment member which concerns on this invention. It is an exploded view of the hot-water supply port adapter for bathtubs concerning this invention. It is explanatory drawing of the tank outer attachment member which concerns on this invention. It is sectional drawing for demonstrating the tank outer attachment member which concerns on this invention. It is explanatory drawing for demonstrating the movable operation | movement of piping couple | bonded with the tank outer attachment member which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view of a hot water inlet adapter 100 for a bathtub provided with a tank outer attachment member 1, FIG. 2 is an exploded view of the bathtub hot water inlet adapter 100, and FIG. 3 is an explanatory view of the outer tank attachment member 1. FIG. 5 is a cross-sectional view for explaining the outside-tank mounting member 1 and FIG. 5 is an explanatory diagram for explaining the movable operation of the pipe coupled to the outside-tank mounting member.

  1 and 2, the hot water inlet adapter 100 for a bathtub provided with the outside mounting member 1 of the present invention is assembled to a mounting hole H provided in the side wall W of the bathtub, and from a water heater installed outside the bathtub. It is applied to a bathtub hot water supply system with a hot water filling (hot water storage) function that supplies hot water into the bathtub and a reheating function that sucks the hot water in the bathtub into the hot water heater and returns the heated high temperature water to the bathtub. As a so-called non-polar type, the same function can be obtained even if the connection between the forward pipe and the return pipe connected to the water heater is reversed.

  The bathtub hot water supply adapter 100 includes a partition member 3 that forms a predetermined flow path between the inside and the outside of the bathtub, a male screw member 2 that attaches the partition member 3 to the inner surface side of the sidewall W of the bathtub, and a sidewall W of the bathtub. In addition to the main parts of the tank outer mounting member 1 and the filter member 4 that are disposed on the outer surface side of the tank, the male screw member 2 is fixed to the bathtub, and provided between the male screw member 2 and the tank outer mounting member 1. The ring-shaped packing 51 on the outer side of the tank, the O-ring 36, the ring-shaped packing 52 on the inner side of the tank, and the lock pin 35 for preventing the partition member 3 from rotating are included.

  In addition, in this specification, the inner side (left side of FIG. 1) with respect to the bathtub along the axial center direction of the hot water inlet adapter 100 for bathtubs is referred to as “front side” or “front side”, and the outer side (FIG. 1). The right side) will be described as “rear side” or “back side”.

  The tank outer mounting member 1 is made of, for example, brass, stainless steel, or a synthetic resin (in this example, a hard resin molding such as polyacetal resin), and has a cylindrical outer cylinder portion 12 whose front side is open and whose rear side is closed. A cylindrical inner cylinder portion 11 coaxially disposed inside the outer cylinder portion 12, a flat ring-shaped flange portion 13 provided on the outer periphery of the front end of the outer cylinder portion 12, and the outer cylinder portion 12. Two tubular pipe connecting portions 14 provided so as to protrude from the rear side on both sides are integrally provided.

  Both pipe connection parts 14 are configured to be connected to the pipe 84 connecting the bathtub and the water heater at the ends thereof and the joint member 8 connected to the end of the pipe 84.

  The inner space of the inner cylinder part 11 is configured as a part of an inner flow path described later, and the annular space between the inner cylinder part 11 and the outer cylinder part 12 is configured as a part of an outer flow path described later. Yes.

  One pipe connection portion 14 a communicates with the outer flow path B, and the other pipe connection portion 14 b communicates with the inner flow path A.

  On the inner peripheral surface of the outer cylinder portion 12, a female screw for assembling to the male screw member 2 described later is engraved.

  A ring-shaped packing 51 made of synthetic resin is attached to the outer peripheral edge portion of the flange portion 13 of the outside-tubing attachment member 1 for watertightness between the flange portion 13 and the outer wall surface of the bathtub.

  The male screw member 2 is made of, for example, a hard resin molded product such as polyacetylate resin, and a flat ring-shaped flange portion 22 is integrally formed on the outer periphery of the front end of the cylindrical portion 21 whose both ends are open. On the outer peripheral surface, a male screw that is screwed into the female screw of the tank external mounting member 1 is engraved.

  The male screw member 2 has a ring-shaped packing 52 made of synthetic rubber in a state where the flange portion 13 of the tank outer mounting member 1 is disposed along the peripheral edge of the mounting hole H on the outer surface (outer wall surface) of the side wall W of the bathtub. And is press-contacted to the peripheral edge portion of the mounting hole H on the inner wall surface of the bathtub.

  The cylindrical portion 21 of the male screw member 2 is screwed and fixed to the outer cylindrical portion 12 of the tank outer mounting member 1 through the mounting hole H.

  On the front surface side of the flange portion 22, a large number of bottomed lock holes 23 fitted to the tips of the lock pins 35 provided in the partition member 3 are provided at regular intervals in the circumferential direction.

  The partition member 3 is provided with a pin insertion hole 34 into which the lock pin 35 is inserted. When the lock pin 35 is forcibly press-fitted into the pin insertion hole 34 of the partition member 3, the distal end portion of the lock pin 35 is inserted. Is fitted into one of the lock holes 23, thereby preventing rotational displacement of the partition member 3 with respect to the male screw member 2.

  Thereby, the peripheral part of the attachment hole H of the bathtub side wall W is clamped by the flange parts 13 and 22 of the tank outer attachment member 1 and the male screw member 2, and is assembled to the side wall W of the bathtub in a penetrating state.

  The partition member 3 forms a flow path as a non-polar type, and is formed of, for example, a hard synthetic resin and extends in the axial direction (front-rear direction). The elongated cylindrical part 31 and the front end of the cylindrical part 31 And a disk-shaped disk part 32 provided in the part.

  A plurality of, for example, two openings 321 are formed on both lower sides of the outer peripheral wall of the disk portion 32.

  The disk portion 32 has a hollow structure in which a plurality of flow paths are provided, and before the outer peripheral wall formed in a single band so as to surround the outer periphery and a part of the front side opening of the outer peripheral wall is closed. And a plate 33.

  In the cylindrical portion 31, an inner flow path A is formed by the inside of the cylindrical portion 31 and the inside of the inner cylindrical portion 11 of the tank outer attachment member 1 communicating with the cylindrical portion 31.

  Furthermore, the cylindrical part 31 is arrange | positioned inside the cylindrical part 21 of the external thread member 2 so that it may mention later, The annular space between the cylindrical part 31 and the cylindrical part 21, and the tank outer attachment member connected to it The outer flow path B is formed by the annular space between the inner cylindrical portion 11 and the outer cylindrical portion 12.

  In the present embodiment, one of the openings 321 provided in the disk portion 32 functions as a discharge port, and the remaining one functions as a suction port.

  A pin insertion hole 34 for inserting a lock pin is formed at the upper center of the partition member 3, and the lock pin 35 inserted into the pin insertion hole 34 when the partition member 3 is attached to the male screw member 2. The partition member 3 is prevented from rotating with respect to the male screw member 2.

  The partition member 3 having the above configuration is detachably attached to the male screw member 2 assembled to the bathtub side wall W by a known attachment means. At this time, the cylindrical part 31 in the partition member 3 is inserted into the inner cylinder part 11 of the outside-tubing attachment member 1 disposed inside the male screw member 2.

  In this state, an O-ring 36 is disposed between the inner cylindrical portion 11 of the outside-tubing attachment member 1 and the cylindrical portion 31 of the partition member 3, and the O-ring 36 allows watertightness between the inner cylindrical portion 11 and the cylindrical portion 31. Is planned.

  Further, the watertightness between the disk portion 32 of the partition member 3 and the flange portion 22 of the male screw member 2 is achieved by the packing 53 provided on the rear surface of the disk portion 32 of the partition member 3.

  The filter member 4 is made of, for example, a dish-shaped molded product made of hard synthetic resin, and an opening 42 corresponding to the opening 321 of the disk part 32 is provided at the lower end part, and a number of suctions are provided in the front wall part. A hole 41 is formed and is attached to the front side of the partition member 3.

  The pipe connecting portion 14 includes a connecting portion 16 into which the joint member 8 connected to the end portion of the pipe 84 is fitted and connected, and a surface 811 of the flange portion 81 provided at the end portion of the joint member 8 (hereinafter, “ And a flange portion 15 having an abutment surface 151 (hereinafter also referred to as “surface 151” or “flange surface 151”) that abuts against the “surface 811” or “flange surface 811”.

  Specifically, the pipe connecting portion 14 is, for example, a connecting portion 16 (hereinafter referred to as “convex portion 16”) including a convex portion protruding in a direction orthogonal to the axis of the outer cylinder portion 12 of the outside-tubing attachment member 1. And the connecting part 16 of the pipe connecting part 14 is a connecting part 82 (hereinafter also referred to as "recessed part 82") formed of a recessed part formed in a recessed shape provided at the end of the joint member 8. )), The pipe connecting portion 14 that is the male side pipe and the joint member 8 and the pipe 84 that are the female side pipe are coupled.

  A flat ring-shaped flange portion 15 is integrally provided on the outer periphery of the pipe connection portion 14 at the distal end side opening end. Similarly, a flat plate is also formed on the outer peripheral surface of the distal end side opening end portion of the joint member 8. A ring-shaped flange portion 81 is integrally formed.

  The pipe connection portion 14 and the joint member 8 are connected by fitting the distal end side opening end of the pipe connection portion 14 into the distal end side opening portion of the joint member 8.

  An annular groove 17 is formed in the pipe connecting portion 14 on the outer peripheral surface at a position closer to the tip than the flange portion 15, and a synthetic resin O-ring 18 is attached to the annular groove 17.

  Since the annular grooves 17 are formed in the convex portions 16 of the pipe connecting portion 14, the O-ring 18 can be quickly mounted at an appropriate position.

  Since the outer diameter of the O-ring 18 is slightly larger than the inner diameter of the joint member 8, when the distal end of the pipe connection portion 14 is fitted into the joint member 8, the O-ring 18 is provided on the outer periphery of the pipe connection portion 14. The ring 18 is pressed against the inner peripheral surface of the joint member 8.

  A convex portion 16 is formed on the pipe connecting portion 14 on the tip side of the flange portion 15. An annular groove 17 formed on the outer peripheral surface of the convex portion and a joint member that is attached to the annular groove 17 and is a female side pipe 8 and the O-ring 18 pressed against the inner peripheral surface of the concave portion 82, the pipe connecting portion 14 in which the convex portion 16 is formed is fitted into the concave portion 82 of the joint member 8, thereby The inner peripheral surface is pressed and high water tightness can be achieved.

  The joint member 8 is formed by bending, and as shown in FIG. 4, an insertion portion 83 is provided on the end side opposite to the flange portion 81, and the insertion portion 83 of the joint member 8 is fitted into the pipe 84. By doing so, the joint member 8 and the pipe 84 are connected.

  The flange portion 15 of the male side tube and the flange portion 81 of the female side tube are coupled by the flange coupling member 9.

  For the flange coupling member 9, for example, a clip-shaped quick fastener 9 made of an elastic member such as spring steel is used.

  The flange coupling member 9 protrudes from the outer periphery of the pipe connection portion 14 and the joint member 8 in a state where the flange connection surfaces 151 and 811 with which the flange portions 15 and 81 of the pipe connection portion 14 and the joint member 8 abut are overlapped. The flange portions 15 and 81 are attached by being fitted into the outer periphery.

  The flange coupling member 9 elastically embraces both flange portions 15 and 81 from the radial direction, and tightly attaches the pipe connection portion 14 and the joint member 8 from the tube axis direction.

  Since the flange coupling member 9 is a quick fastener, the quick fastener 9 is only fitted on the outer circumferences of the flange portions 15 and 81 as compared with the case where the pipe connection portion 14 and the joint member 8 are coupled using a member such as a screw. The pipe connecting portion 14 and the joint member 8 can be coupled by the simple operation.

  By connecting and connecting the flange coupling member 9 so that the flange surfaces 151, 811 in contact with the flange portions 15, 81 of the pipe connection portion 14 and the joint member 8 are in sliding contact with each other, the joint member 8 is Both the flange portions 15 and 81 are configured to slide so that the joint member 8 can rotate.

  Hereinafter, the connection method to the pipe connection part 14 (14a, 14b) of the joint member 8 (8a, 8b) which connects a bathtub and a water heater is demonstrated.

  First, before connecting the pipe connecting portions 14a, 14b and the joint members 8a, 8b, the O-ring 18a is formed in the annular grooves 17a, 17b formed on the base end sides of the convex portions 16a, 16b of the pipe connecting portion 14. , 18b are fitted.

  The convex portions 16a and 16b of the pipe connecting portions 14a and 14b to which the O-rings 18a and 18b are attached are fitted into the concave portions 82 of the joint members 8a and 8b to connect the pipe connecting portions 14a and 14b and the joint members 8a and 8b. Let

  Until the flange surface 811 of the flange portion 81 of the joint member 8a, 8b contacts the contact surface 151 of the flange portion 15a, 15b of the pipe connection portion 14a, 14b, the pipe connection portion 14a, 14b is connected to the joint member 8a, 8b. Fit into the recess 82 firmly.

  The joint members 8a and 8b fitted to the convex portions 16a and 16b of the pipe connection portions 14a and 14b are connected to the flange surfaces 151 of the flange portions 15a and 15b of the pipe connection portions 14a and 14b facing the flange surface 811 of the flange portion 81. The joint members 8a and 8b are accurately attached to the predetermined positions of the pipe connecting portions 14a and 14b.

  The pipe connection portions 14a and 14b and the flange portions 15 and 81 of the joint members 8a and 8b are integrally formed on the outer periphery of the pipe connection portions 14a and 14b and the joint members 8a and 8b with the surfaces 151 and 811 in contact with each other. By fitting and attaching the flange coupling members 9a and 9b to the outer circumferences of the flange portions 15 and 81, the pipe connection portions 14a and 14b and the joint members 8a and 8b are coupled, respectively.

  As shown in FIG. 5, the joint members 8a and 8b coupled to the pipe connection portions 14a and 14b are rotated about the tube axis of the pipe connection portions 14a and 14b as a rotation axis.

  As illustrated, when the joint members 8a and 8b are coupled to the pipe connection portions 14a and 14b, the insertion portion 83 and the pipe 84 of the joint members 8a and 8b are projected from the side of the pipe connection portions 14a and 14b. If it is a simple structure, since there is no obstacle that obstructs the joint members 8a and 8b and the pipe 84 that rotate, the structure can be rotated 360 degrees.

  In addition, it is preferable that the joint members 8a and 8b coupled to the pipe connection portions 14a and 14b are configured to be able to rotate 360 degrees, but for example, a rotation operation within a 180 degree range or a rotation within a 90 degree range. It does not exclude the operation and the like, and is not particularly limited as long as it is configured to be rotatable within a range required for the joint member 8 connected to the outside-tubing attachment member 1.

  If it is the structure as mentioned above, the pipe connection part 14 (14a, 14b) and the pipe 84 will be connected, both will be couple | bonded by the flange coupling member 9 (9a, 9b), and the surface of the flange parts 15 and 81 which contact | abut The pipe 84 can be configured to be rotatable with a simple structure in which the 151 and 811 are slid.

  Moreover, the pipe connection part 14 and the pipe 84 can be simply connected by fitting the joint member 8 (8a, 8b) having the pipe 84 connected to the pipe connection part 14 (14a, 14b) and attaching the flange coupling member 9 (9a, 9b). Since it can be made to couple | bond firmly, the connection operation | work of the piping 84 and the coupling member 8 which connect a bathtub and a water heater becomes easy.

  In the above description, the connection portion 16 of the pipe connection portion 14 of the outside-tubing attachment member 1 is composed of the protruding protrusion 16 and the connection portion 82 of the joint member 8 is formed of the recessed portion 82 having a recessed shape. The connection part of the part 14 may be a female side pipe made of a concave part, and the connection part of the joint member 8 may be a male side pipe made of a convex part.

  Even when the pipe connection portion 14 is a female side tube and the joint member 8 is a male side tube, the same effect as when the pipe connection portion 14 is a male side tube and the joint member 8 is a female side tube can be obtained. Needless to say.

  That is, either one of the pipe connection portion 14 and the joint member 8 is formed with a convex portion on the distal end side than the flange portion, and on the other side, a concave portion in which the convex portion is fitted is formed on the distal end side opening end portion. And an annular groove 17 formed on the outer peripheral surface of the convex portion, and an O-ring 18 attached to the annular groove 17 and pressed against the inner peripheral surface of the concave portion. 14 or the joint member 8 is inserted into the recess, whereby the inner peripheral surface of the recess is pressed and high water tightness can be achieved.

  As described above, the hot water inlet adapter 100 for a bathtub attached to the side wall W of the bathtub in a penetrating manner and connected to a hot water heater outside the bathtub is screwed with the male screw member 2 attached to the inner surface side of the side wall W of the bathtub. Side wall W outer surface of the bathtub having the outer cylinder part 12 and the pipe connection part 14 which is connected to the pipe 84 connecting the bathtub and the water heater and serves as a flow path leading to the outer cylinder part 12 The pipe connection portion 14 is provided on the side so that the connected pipe 84 is rotatable at least along the pipe axis of the outside-tubing attachment member 1 between a direction that is at least straight from the rear and substantially bent at a right angle. Therefore, by connecting the pipe 84 to the pipe connecting portion 14 so as to be rotatable at least along the pipe axis of the outside-tubing attachment member 1 from the rearward direction to the substantially right angle, the bathtub and According to the positional relationship with the water heater It is not necessary to prepare a bath for hot-water supply port adapter 100 is a general-purpose can be used in the bathtub and water heater in a different positional relationship with only the present invention product.

  Further, since the pipe 84 is configured to rotate, for example, even in a bathtub whose position moves like a mechanical bathtub used for nursing care, the joint member 8 rotates according to the movement of the bathtub. It can be suitably used without disturbing the movement of the bathtub by moving.

  The embodiment described above is merely an example of the present invention, and it is needless to say that the specific configuration and the like can be appropriately changed and designed within the scope of the effects of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Outside tank attachment member 2 ... Male screw member 3 ... Partition member 4 ... Filter member 8 (8a, 8b) ... Joint member 9 ... Flange coupling member (quick fastener)
DESCRIPTION OF SYMBOLS 11 ... Inner cylinder part 12 ... Outer cylinder part 14 (14a, 14b) ... Pipe connection part 15 (15a, 15b) ... Flange part 16 (16a, 16b) ... Connection part (convex part)
17 (17a, 17b) ... annular groove 18 (18a, 18b) ... O-ring 82 ... connecting part (recessed part)
84 ... Piping 100 ... Hot water adapter for bathtub 151 151 ... Abutting surface (abutting surface, flange surface of pipe connecting portion)
811: Joint member surface (flange surface)
W ... Bathtub side wall H ... Mounting hole

Claims (1)

It is a hot water outlet adapter for a bathtub that is attached in a penetrating manner to the side wall of the bathtub and is piped to a hot water heater outside the bathtub,
An outer cylinder part into which a male screw member attached to the inner surface of the side wall of the bathtub is screwed,
A pipe connecting the bathtub and the water heater is connected, and a pipe connecting portion serving as a flow path leading to the outer cylinder portion is provided on the side wall outer surface side of the bathtub.
The pipe connection portion is provided so that the connected pipe can be rotated at least substantially straight from the rear side along the pipe axis of the outside-tubing attachment member and in a direction that bends at a substantially right angle.
The pipe connection part has a connection part into which a joint member connected to an end part of the pipe is fitted and connected, and a contact surface that comes into contact with a surface of a flange part provided at the end part of the joint member. A flange portion,
With the flanges of the pipe connection portion and the joint member in contact with each other, a flange coupling member is attached and coupled to the outer periphery of both flange portions, and both the flange portions slide to allow the piping to rotate. Configured to be
Either one of the pipe connection part or the joint member is formed with a convex part on the front end side than the flange part, and on the other side, a concave part into which the convex part is fitted is formed on the front end side opening end part. And
An annular groove formed on the outer peripheral surface of the convex part;
An O-ring mounted in the annular groove and pressed against the inner peripheral surface of the recess,
The annular groove is formed on the base end side of the convex portion, and is a hot water inlet adapter for bathtubs.

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