JP4728709B2 - Eccentric tube - Google Patents

Description

  The present invention relates to an eccentric tube.

  Conventionally, an eccentric pipe is used in a portion where the hot and cold water mixing plug is connected to the hot water supply pipe and the water supply pipe. This eccentric tube is formed so that one end is connected to the hot and cold water mixing plug, and the other end is connected to the pipe, and the center of both connecting portions is displaced. Even when the distance between the hot water supply pipe and the water supply pipe formed on the mounting surface is different from the distance between the hot water inlet and the water inlet on the side of the hot water / mixing tap, this can be connected.

  Further, as shown in Patent Document 1 below, covering the eccentric tube with a cover made of a synthetic resin having low thermal conductivity improves the appearance and prevents burns due to the eccentric tube on the hot water supply side. It has been broken.

  In recent years, as shown in Patent Document 2 below, an eccentric tube with a synthetic resin cover capable of attaching a hot and cold water mixing plug to, for example, a wall surface of a unit bath has been proposed. As shown in FIGS. 17 and 18, the synthetic resin cover is composed of two separable halves 80 and 81, and covers the hot water supply side eccentric tube body 82 and the water supply side eccentric tube body 83. . The eccentric pipe body 82 is installed between the hot water supply pipe (not shown) and the hot water inlet B of the hot water mixing tap A to form a hot water flow path, while the eccentric pipe 83 is connected to the hot water supply pipe (not shown) and hot water mixing. Installed between the water inlets C of the plug A to form a water flow path. For example, the eccentric pipe main body 82 on the hot water supply side has a connecting portion 84 for the hot-water mixing tap A at one end and a connecting portion (male screw portion) 85 for the pipe at the other end so that the centers of both connecting portions 84 and 85 are shifted by, for example, about 5 mm. Is arranged. Reference numeral 86 denotes a flow rate adjusting unit provided in the eccentric tube main body 82.

Japanese Patent No. 3280584 JP 2003-336300 A

  By the way, the synthetic resin cover made up of the two halves 80, 81 is provided with an adjustment margin, and as shown in FIG. 19, a faucet is installed so as to connect the connecting portion (male portion) 85 and the pipe. Depending on the amount of protrusion of the female thread portion of the joint 88 installed in the through-hole 87 provided in the wall W or the way of attaching the eccentric tube main body 82 When the fitting of the connecting portion (male portion) 85 is shallow], the adjustment allowance of the synthetic resin covers 80 and 81 is insufficient, and the ring is formed between the surface 89 of the wall W and the end surfaces 90 of the synthetic resin covers 80 and 81 The gap S may be generated, and therefore, the appearance may be deteriorated or dust may easily accumulate in the gap S.

  The present invention has been made in consideration of the above-mentioned matters, and its purpose is to prevent the gap even if a gap is generated between the mounting surface such as the wall surface to which the hot and cold water mixing tap is attached and the end surface of the synthetic resin cover. It is to provide an eccentric tube that can be covered.

In order to achieve the above object, an eccentric tube according to the present invention is formed such that a connecting portion with respect to a hot and cold water mixing tap is formed at one end and a connecting portion with respect to a pipe is formed at the other end so that the centers of both connecting portions are shifted. A synthetic resin cover that is composed of two halves that are separable and individually covers the eccentric tube main body; and a mounting surface such as a wall surface to which the synthetic resin cover and a hot-water mixing tap are attached; An approximately O-shaped ring body is provided to cover an annular gap formed between the first auxiliary cover and the ring body, and a first auxiliary cover having a substantially C-shaped configuration and an engaging means for the first auxiliary cover. And an arcuate second auxiliary cover that is smaller than the first auxiliary cover (claim 1) .
In the eccentric tube, the first auxiliary cover has an engagement groove and a lateral guide groove on each of the opposed inner surfaces of the opening end of the first auxiliary cover, and the second auxiliary cover includes: A pair of horizontal projecting pieces projecting from the upper stage of both end faces of the second auxiliary cover in a direction toward the inside of the ring body and having locking claws engaged with the engaging grooves formed at the ends; and the both end faces It may have a pair of horizontal engagement protrusions provided in the lower stage and engaged with the lateral guide groove (claim 2).

  In this invention, since the ring body that covers the annular gap generated between the synthetic resin cover and the mounting surface such as the wall surface to which the hot and cold water mixing tap is attached is provided, the appearance is improved by covering the gap with the ring body. , It is possible to make it difficult to collect dust in the gap.

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited thereby.
1 to 16 show an embodiment of the present invention. In addition, in FIGS. 1-16, the same thing as the code | symbol shown in FIGS. 17-19 is the same or an equivalent.
1 to 16, reference numeral 1 denotes a synthetic resin cover for covering the eccentric tube main body 83 and is composed of two halves 2 and 3 that are separable. The half body 2 corresponds to the half body 80 shown in FIG. 17, and the half body 3 corresponds to the half body 81 shown in FIG. The outer shapes of the halves 2 and 3 and the halves 80 and 81 are substantially the same. The difference between the half-divided bodies 80 and 81 and the half-divided bodies 2 and 3 is that, in addition to the engaging means A for assembling the half-divided bodies and firmly holding the assembled state, One of the halves 3 is provided with an engaging means B with the auxiliary cover. The synthetic resin cover 1 shown in FIG. 1 covers the eccentric pipe main body 83 on the water supply side.

  Reference numeral 4 denotes a ring body that covers an annular gap S generated between the surface 89 of the wall W and the upstream end face 90 of the synthetic resin cover 1. The ring body 4 can be firmly held on the upstream end face 90 of the synthetic resin cover 1 via the engaging means A. The upstream end face 90 of the synthetic resin cover 1 is substantially C-shaped. Further, the ring body 4 is separable through a first auxiliary cover 5 (see FIGS. 2 to 6) having a substantially C-shape in a plan view, which is separable, and the auxiliary cover 5 through an engagement means C. The second auxiliary cover 6 (see FIGS. 7 to 12) having an arc shape that forms a substantially O-shaped ring body 4 along the upstream end surface 90 of the synthetic resin cover 1.

First, the engaging means B will be described.
The first auxiliary cover 5 has the inner half member 3 in contact with the center position of the upper surface of the auxiliary cover 5, and a pair of left and right engaging claw receivers provided at the lower end of the open end of the half member 3. 7 and 7 (see FIG. 13), and a pair of left and right engaging claws 8 and 8 (see FIG. 4).

Next, the engaging means C will be described.
As shown in FIGS. 7 to 9, the second auxiliary cover 6 is formed with a locking claw 9 a at the tip, and has horizontal protruding pieces 9, 9 that protrude inward from the upper stage of the both end surfaces 10, 10 at both ends. In addition, horizontal engagement protrusions 11 and 11 projecting from both end faces 10 and 10 are provided at the lower stage of both end faces 10 and 10.
On the other hand, the first auxiliary cover 5 has an engaging groove 12 that engages with the locking claw 9a of the horizontal protruding piece 9 and a lateral guide groove 13 that engages with the horizontal engaging protrusion 11 on the inner surface 14 that faces the open end. Have.

Next, the engaging means A will be described.
The halves 2 and 3 are engaged with each other by the following configuration. That is, the half-divided body 3 shown in FIG. 13 has a protrusion 16 at the upper left position toward the front at the opening end and an engagement hole 17 at the upper right position, whereas the half-divided body 2 shown in FIG. A protrusion 18 that engages with the engagement hole 17 is provided at the upper left position toward the front at the opening end, and an engagement hole 19 that engages with the protrusion 16 is provided at the upper right position.
13 and 15 has a pair of outward lateral guide grooves 20 and 20 projecting inward from the inner peripheral surface directly below the protrusion 16 and the engagement hole 17, respectively. On the other hand, the halved body 2 shown in FIGS. 14 and 16 has horizontal guide pieces 21 and 21 guided by the outward lateral guide grooves 20 and 20.
The halved body 3 shown in FIGS. 13 and 15 is a pair of left and right claw pieces 21 in which inward nails 21a and 21a are formed at the tips at positions below the outward lateral guide grooves 20 and 20. 14 and 16 has a pair of left and right claw pieces 22 and 22 formed with outward claws 22a and 22a that engage with the inward claws 21a and 21a. .

  Thus, in FIG. 1, even if an annular gap S is generated between the surface 89 of the wall W and the end face 90 of the synthetic resin cover 1, the ring body 4 is set on the synthetic resin cover 1, The gap 4 can be covered with the body 4, and the appearance can be improved, and dust can be hardly accumulated in the gap S.

  In this embodiment, the eccentric tube used for the so-called wall-mounted hot and cold water mixing tap A has been described. However, the present invention is not limited thereto, and can be applied to an eccentric tube used for a counter type hot and cold water mixing tap, for example. In the case of this counter type, the mounting surface to which the hot and cold water mixing tap is mounted is a horizontal mounting surface.

It is a cross-sectional view which shows the use condition in one Example of this invention. It is a top view which shows one auxiliary | assistant cover of the ring body used in the said Example. It is a cross-sectional view which shows one auxiliary | assistant cover of the ring body used in the said Example. It is a rear view which shows one auxiliary | assistant cover of the ring body used in the said Example. It is the sectional view on the AA line in FIG. It is a front view which shows one auxiliary | assistant cover of the ring body used in the said Example. It is a top view which shows the other auxiliary cover of the ring body used in the said Example. It is a cross-sectional view which shows the other auxiliary cover of the ring body used in the said Example. It is a side view which shows the other auxiliary cover of the ring body used in the said Example. It is a front view which shows the other auxiliary cover of the ring body used in the said Example. It is a rear view which shows the other auxiliary | assistant cover of the ring body used in the said Example. It is the BB sectional view taken on the line in FIG. It is a front view which shows one half body of the synthetic resin cover used in the said Example. It is a front view which shows the other half-divided body of the synthetic resin covers used in the said Example. It is a bottom view which shows one half body of the synthetic resin cover used in the said Example. It is a bottom view which shows the other half-divided body of the synthetic resin cover used in the said Example. It is a disassembled perspective view which shows the eccentric tube with a general synthetic resin cover. It is a figure which shows the use condition of the eccentric pipe | tube with a general synthetic resin cover. It is a cross-sectional view for explaining a conventional problem.

DESCRIPTION OF SYMBOLS 1 Synthetic resin cover 2,3 Half body 4 Ring body 83 Eccentric pipe body 84 Connection part to hot-water mixing plug 85 Connection part to piping 89 Wall surface A Hot-water mixing plug S Gap

Claims (2)

A connection part for the hot and cold water mixing plug at one end and a connection part for the pipe at the other end, and an eccentric tube body arranged so that the centers of both connection parts are shifted, and two halves that can be separated, are eccentric. A synthetic resin cover that individually covers the tube body, and a substantially O-shaped ring that covers an annular gap formed between the synthetic resin cover and a mounting surface such as a wall surface to which a hot and cold water mixing tap is attached A first auxiliary cover having a substantially C-shape, and a second auxiliary cover having an arc shape smaller than the first auxiliary cover and engaged with the first auxiliary cover. eccentric tube, characterized in that it comprises and. The first auxiliary cover has an engagement groove and a lateral guide groove on each of the opposing inner surfaces of the opening end of the first auxiliary cover,
The second auxiliary cover protrudes from the upper stage of both end faces of the second auxiliary cover in a direction that becomes the inside of the ring body, and a pair of locking claws that engage with the engaging groove are formed at the tips. The eccentric tube according to claim 1, further comprising a horizontal protruding piece and a pair of horizontal engaging protrusions provided at a lower stage of the both end faces and engaged with the lateral guide groove.

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