JP7636712B2 - Wall-mounted pipe cover - Google Patents

Description

The present invention relates to a wall-embedded pipe cover .

Patent Document 1 discloses a protective cover for wiring and piping materials that contains and protects wiring and piping materials without exposing them along the wiring and piping paths on a wall surface. The protective cover described in Patent Document 1 consists of a linear main body cover and an accessory cover that is connected to the main body cover. The main body cover and the accessory cover each have a base that is in close contact with the surface of the wall and a lid that is fitted onto the base.

Japanese Utility Model Application Publication No. 6-16799

The protective cover described in Patent Document 1 has a structure in which a lid is fitted to a base that is in close contact with the surface of a wall. This means that the entire protective cover protrudes from the surface of the wall. This results in problems such as poor appearance and reduced space efficiency around the protective cover.

An object of the present invention is to provide a wall-embedded type pipe cover capable of minimizing the protruding height of the pipe cover from the surface of the wall.

To achieve the above-mentioned objective, a wall-embedded piping cover comprises a base member that is inserted into a slit formed in a wall, has an opening facing the front side of the wall, and has a piping component-accommodating recess, and flange portions formed on both sides of the accommodating recess and secured to the wall with screws while being superimposed on the surface of the wall, and a flat decorative cover that is assembled to the base member, covers the opening of the accommodating recess, and is superimposed on the flange portions.

With this configuration, the housing recess of the base member that houses the piping member is inserted into a slit formed in the wall, and the flange portion is assembled to the wall in a state where it is superimposed on the surface of the wall. Therefore, the protruding height of the piping cover from the surface of the wall can be kept small.

In the above wall-embedded pipe cover, the decorative cover has a cut surface, and is preferably provided with a cut surface cover that covers the cut surface of the decorative cover. The length of the base member and decorative cover that constitute the pipe cover is determined according to the length of the pipe member to be housed. At the construction site, workers cut the decorative cover of a certain length to a length determined according to the length of the pipe member to carry out construction. Therefore, if the cut surface of the decorative cover is exposed to the outside, the aesthetic appearance of the pipe cover may be impaired.

In this regard, according to the above configuration, the cut surface of the decorative cover is covered by the cut surface cover, so that the cut surface is not exposed to the outside, improving the appearance of the piping cover. In the above wall-embedded piping cover, it is preferable that the storage recess of the base member has a pair of opposing side walls, and that the outer surfaces of both of the side walls are planar and parallel to each other.

By fixing a pair of splints to the back surface of the wall on both sides of the slit along the extension direction of the slit, the peripheral portion of the wall around the slit is reinforced. By fixing the flange portion of the base member to such a wall, the flange portion can be stably supported by the wall.

With the above configuration, the outer surfaces of a pair of side walls that form the storage recess of the base member are planar and parallel to each other, so that the outer surfaces of the pair of side walls fit along the side surfaces of a pair of splints that are arranged on both sides of the slit. This allows the base member to be positioned relative to the wall. This improves ease of construction when fixing the base member to the wall.

In the above wall-embedded piping cover, the base member includes a first base member that houses a pipe as the piping member, and a second base member that houses a joint as the piping member, and the decorative cover includes a first decorative cover that is assembled to the first base member, and a second decorative cover that is assembled to the second base member, and it is preferable that the first decorative cover has a cut surface, and that the cut surface is covered by the second decorative cover.

With this configuration, when viewed from the front of the piping cover, the first decorative cover and the second decorative cover are continuous, and the cut surface of the first decorative cover is covered by the second decorative cover. Therefore, the appearance of the piping cover can be improved without providing a dedicated cover to cover the cut surface of the first decorative cover.

In the above-mentioned wall-embedded pipe cover, the base member and the decorative cover are provided above the baseboard provided at the bottom of the wall, or below the molding provided at the top of the wall, and it is preferable that the protruding height of the decorative cover from the surface of the wall is equal to or less than the protruding height of the baseboard or the molding from the surface of the wall.

With this configuration, the decorative cover does not protrude forward beyond the baseboard, so the decorative cover does not get in the way when placing a washing machine or other device close to the wall. This means that the washing machine or other device can be placed with a small gap between the wall.

In addition, a method for installing a wall-embedded pipe cover to achieve the above object includes the steps of forming a slit in the wall that extends in a predetermined direction, fixing a splint to the rear surface of the wall in the direction in which the slit extends, inserting the accommodating recess of the base member into the slit and fixing the flange portion to the wall in such a manner that the wall is sandwiched between the splint and the flange portion, and assembling the decorative cover to the base member.

With this method, the splint is fixed to the back surface of the wall along the extension direction of the slit, reinforcing the peripheral portion of the wall around the slit. By fixing the flange portion of the base member to such a wall, the flange portion can be stably supported by the wall.

According to the present invention, the protruding height of the piping cover from the wall surface can be kept small.

FIG. 2 is an exploded perspective view showing one embodiment of a wall-embedded pipe cover. FIG. 4 is a front view showing the first base member and the support member. FIG. 4 is a cross-sectional view showing the first base member, the support member, and the first decorative cover. FIG. FIG. FIG. FIG. 13 is a perspective view showing the process of fixing the splint to the back surface of the wall. 13 is a perspective view showing a process of inserting the receiving recess of the base member into the slit of the wall and fixing the flange portion to the wall. FIG. FIG. 4 is a front view showing a state in which the piping member is accommodated in the accommodating recess of the base member. 13 is a perspective view showing a process of assembling the decorative cover and the cut surface cover to the base member. FIG. FIG. 4A is a front view showing a piping cover installed on a wall, and FIG. 4B is a cross-sectional view showing the piping cover installed on the wall. 10A is a front view showing a modified example of the second base member, and FIG. 10B is a perspective view showing the second base member of the modified example. 13A is a front view showing a modified example of a joint used together with the modified example of the second base member, and FIG. 13B is a perspective view showing the modified example of the joint. 13A to 13C are cross-sectional views sequentially showing the process of attaching a piping member to a second base member of a modified example. FIG. 13 is a perspective view showing a modified example in which an opening correction tool is used in the process of inserting the accommodating recess of the first base member into the slit of the wall and fixing the flange portion of the first base member to the wall. 13 is a cross-sectional view showing a first base member fixed to a wall and an opening correction jig attached to the first base member. FIG. FIG. 13 is a perspective view showing another modified example, in which an opening correction tool is used in the process of inserting the accommodating recess of the first base member into the slit of the wall and fixing the flange portion of the first base member to the wall. 13 is a cross-sectional view showing a first base member fixed to a wall and an opening correction jig attached to the first base member. FIG.

One embodiment will be described below with reference to Figures 1 to 11. As shown in Figure 1, the wall-embedded piping cover (hereinafter, piping cover 10) includes a first base member 20, a first decorative cover 30, a second base member 40, a second decorative cover 50, a support member 60, and a cutting surface cover 70.

Next, each component of the piping cover 10 will be described in detail. <First base member 20> As shown in Figures 1, 2, and 4, the first base member 20 has a trough-shaped storage recess 21 that stores a pipe 81 as a piping member 80, and a pair of flange portions 27 formed on both sides of the storage recess 21 in the width direction.

The storage recess 21 has a long, flat bottom wall 22 and a pair of opposing side walls 23 that bend and extend from both ends of the bottom wall 22 in the width direction. The outer surfaces of both side walls 23 are planar and parallel to each other.

On the inner surface of each side wall 23, in order from closest to the bottom wall 22, a pair of first ridges 24, a pair of second ridges 25, and a pair of third ridges 26 extend along the longitudinal direction of the bottom wall 22 and over the entire longitudinal direction.

The first ridges 24, the second ridges 25, and the third ridges 26 face each other in the width direction of the storage recess 21. Each flange portion 27 extends outward in the width direction of the storage recess 21 from the outer surface of the tip of each side wall 23. Each flange portion 27 has a plurality of screw holes 28 spaced apart from one another.

The first base member 20 is integrally molded from a hard resin material. In this embodiment, the first base member 20 is formed by extrusion molding. <First decorative cover 30> As shown in Figures 1, 3, and 4, the first decorative cover 30 has a flat cover body 31 that covers the opening 21a of the storage recess 21 and is overlapped with the flange portion 27, and a pair of protrusions 32 formed on the back surface of the cover body 31.

The cover body 31 is rectangular when viewed from the front. Both widthwise edges of the cover body 31 are curved so that the outer edges are located on the back side of the cover body 31. Each protrusion 32 extends along the longitudinal direction of the cover body 31 and over the entire longitudinal direction.

Each protrusion 32 is inclined so that it approaches each other as it moves away from the cover body 31. A locking claw 33 is formed at the tip of each protrusion 32. Each locking claw 33 is inclined so that it moves away from each other as it moves away from the cover body 31.

Both longitudinal ends of the first decorative cover 30 are cut surfaces 30a. As shown in FIG. 4, the first decorative cover 30 is assembled to the first base member 20 by engaging each of the locking claws 33 with each of the third protrusions 26 of the first base member 20. At this time, a gap S is formed between the cover body 31 and each of the flange portions 27.

The first decorative cover 30 is integrally molded from a hard resin material. In this embodiment, the first decorative cover 30 is formed by extrusion molding. <Second base member 40> As shown in Figs. 1 and 5, the second base member 40 has a housing recess 41 that houses a fitting 82 as a piping member 80, and flange portions 47 formed on both sides of the housing recess 41.

The accommodation recess 41 has a bottom wall 42 and a side wall 43 that is bent and extends from the edge of the bottom wall 42 and has an inverted U-shape when viewed from the front. As shown in FIG. 5, a recess 42a is formed on the surface of the bottom wall 42 to allow the back of the joint 82 to escape.

A number of screw holes 45 are formed at intervals around the recess 42a in the bottom wall 42. The flange portion 47 extends from the outer surface of the tip of the side wall 23 toward the outside in the width direction and toward the opposite side from the first base member 20. The flange portion 47 has a number of screw holes 48 and a number of engagement holes 49 formed at intervals.

The second base member 40 has a bottom wall 42
and the side wall 43. The second base member 40 has an extension portion 44 extending from both the front wall 42 and the side wall 43 toward the first base member 20. The second base member 40 is integrally molded from a hard resin material. In this embodiment, the second base member 40 is formed by injection molding.

<Second decorative cover 50> As shown in Figs. 1 and 6, the second decorative cover 50 has a flat cover body 51 that covers the opening 41a of the storage recess 41 and is overlapped with the flange portion 47, and a plurality of locking claws 52 formed on the back surface of the cover body 51.

The cover body 51 is generally rectangular in front view. Of the four edges of the cover body 51, the three edges 51b, excluding the edge 51a that overlaps with the first decorative cover 30, are bent and protrude toward the back side.

When the second decorative cover 50 is attached to the second base member 40, the edge 51b is located on the outer periphery of the flange portion 47 of the second base member 40. An insertion hole 51c is provided in the center of the cover body 51 to allow the insertion of a faucet or the like that is connected to the joint 82.

The second decorative cover 50 is integrally molded from a hard resin material. In this embodiment, the second decorative cover 50 is formed by injection molding. <Support member 60> As shown in Figures 1, 2 and 4, the support member 60 is detachably attached to the first base member 20 and supports the pipe 81, and has a base plate 61, a pair of regulating projections 62 protruding from the surface of the base plate 61, and a support portion 63 protruding from the surface of the base plate 61 and supporting the pipe 81.

The base plate 61 is rectangular in front view, and a long hole 61a that is long in the longitudinal direction of the base plate 61 is formed in the center. A pair of corners 61b at diagonal positions of the base plate 61 are right-angled, while the remaining pair of corners 61c are rounded into an arc shape in front view. In this embodiment, the pair of corners 61c are located at the upper left and lower right in front view when attached to the first base member 20.

A pair of fitting protrusions 61d are formed on both longitudinal ends of the surface of the base plate 61. As shown in FIG. 4, both longitudinal ends of the base plate 61 are fitted between the bottom wall 22 of the first base member 20 and a pair of first protrusions 24, thereby attaching the support member 60 to the first base member 20.

As shown by the two-dot chain line in FIG. 2, the support member 60 is rotated 90 degrees clockwise in a front view while abutting against the bottom wall 22 with the longitudinal direction of the support member 60 aligned with the longitudinal direction of the first base member 20. As a result, both longitudinal ends of the base plate 61, more specifically, the portions where the pair of fitting projections 61d are provided, are fitted between the bottom wall 22 of the first base member 20 and the pair of first protrusions 24.

As described above, the pair of corners 61c of the base plate 61 are rounded into an arc shape when viewed from the front. This allows the support member 60 to rotate in a clockwise direction when viewed from the front from the position shown by the two-dot chain line in FIG. 2.

When the support member 60 is rotated to the normal assembly position shown by the solid line in FIG. 2, the pair of corners 61b come into contact with the pair of side walls 23, preventing further rotation of the support member 60. On the other hand, the rotation of the support member 60 in the counterclockwise direction as viewed from the front from the position shown by the two-dot chain line in FIG. 2 is prevented by the pair of corners 61b coming into contact with the pair of side walls 23.

The pair of restricting protrusions 62 restrict the insertion allowance when both longitudinal ends of the base plate 61 are inserted between the bottom wall 22 of the first base member 20 and the pair of first protrusions 24. They are provided on both longitudinal sides of the base plate 61 and extend along the width of the base plate 61.

The support portion 63 is provided in the center of the base plate 61 in the longitudinal direction, and has a concave surface with an arc-shaped cross section on its surface that supports the pipe 81. The support portion 63 is provided across the entire width of the base plate 61.

The support member 60 is integrally molded from a hard resin material. In this embodiment, the support member 60 is formed by injection molding. <Cutting surface cover 70> As shown in FIG. 1, the cutting surface cover 70 covers the cutting surface 30a of the first decorative cover 30 and is substantially flat.

The cut surface cover 70 is generally rectangular in front view and is longer in the width direction of the cover body 31 of the first decorative cover 30. The longitudinal edge of the cut surface cover 70 is bent and protrudes toward the back side.

The cut surface cover 70 is integrally molded from a hard resin material. In this embodiment, the cut surface cover 70 is formed by injection molding. Next, a method for installing the piping cover 10 will be described with reference to Figures 7 to 11. In this embodiment, a method for installing the piping cover 10 that houses piping members 80 that extend upward from piping arranged under the floor of a house or the like, that is, so-called underfloor piping, will be described.

First, as shown in FIG. 7, a slit 91 is formed in a wall 90, extending in the vertical direction. The slit 91 extends to the bottom of the wall 90. A baseboard 93 extending in the width direction of the slit 91 (horizontal direction in the figure) is fixed to the bottom of the surface of the wall 90 by a nail or the like (not shown). The lower end of the slit 91 is covered from the front side by the baseboard 93.

The upper end of the slit 91 is formed in an arc shape when viewed from the front. Next, a pair of splints 92 are fixed to the rear surface of the wall 90 along the extension direction of the slit 91. More specifically, splints 92 made of a pair of square timbers are fixed to both sides of the wall 90 in the width direction of the slit 91. A screw 94 is inserted from the front side into a hole 90a formed in the wall 90, and the screw 94 is screwed into the splint 92 to fix the splint 92 to the wall 90.

Then, as shown in FIG. 8, the second base member 40 is inserted into the upper portion of the slit 91, and the flange portion 47 is fixed to the wall 90 in such a manner that the wall 90 is sandwiched between the second base member 40 and the splint 92. The opening 41a of the storage recess 41 opens toward the front side of the wall 90, and the pair of flange portions 47 are fixed to the wall 90 in a state where they are overlapped on the surface of the wall 90. In more detail, the screw 95 is inserted from the front side into the screw hole 48 of the flange portion 47, and the screw 95 is screwed into the wall 90 and the splint 92, thereby fixing the second base member 40 to the wall 90.

Next, the storage recess 21 of the first base member 20 is inserted into the lower part of the slit 91, and the flange portion 27 is fixed to the wall 90 in such a manner that the wall 90 is sandwiched between the storage recess 21 and the splint 92. The opening 21a of the storage recess 21 opens toward the front side of the wall 90, and the pair of flange portions 27 are fixed to the wall 90 in a state where they are overlapped on the surface of the wall 90. In more detail, the screw 96 is inserted from the front side into the screw hole 28 of the flange portion 27, and the screw 96 is screwed into the wall 90 and the splint 92, thereby fixing the first base member 20 to the wall 90.

The upper end of the storage recess 21 of the first base member 20 overlaps with the front side of the extension portion 44 of the second base member 40. Next, as shown in FIG. 9, the pipe 81 is stored in the storage recess 21 of the first base member 20, and the joint 82 is stored in the storage recess 41 of the second base member 40. At this time, the pipe 81 is supported by the two support members 60 attached to the storage recess 21. Specifically, the pipe 81 is fastened to the support members 60 via a cable tie (not shown) inserted through the long hole 61a of the support members 60.

The joint 82 is fixed to the accommodating recess 41 by inserting a screw 97 into the mounting seat (not shown) of the joint 82 and screwing the screw 97 into the threaded hole 45 of the accommodating recess 41. Next, as shown in FIG. 10, the first decorative cover 30 is assembled to the first base member 20. Next, the second decorative cover 50 is assembled to the second base member 40. As a result, the cut surface 30a at the upper end of the first decorative cover 30 is covered by the second decorative cover 50.

The cut surface cover 70 is attached so as to cover the cut surface 30a at the lower end of the first decorative cover 30. The cut surface cover 70 is fixed to the surface of the first decorative cover 30, for example, via double-sided tape or adhesive.

As shown in Figures 11(a) and 11(b), the protruding heights of the first decorative cover 30, the second decorative cover 50, and the cut surface cover 70 from the surface of the wall 90 are equal to or less than the protruding height of the baseboard 93 from the surface of the wall 90.

Next, the effects of this embodiment will be described. (1) The accommodating recesses 21, 41 of the base members 20, 40 that accommodate the piping member 80 are inserted into the slits 91 formed in the wall 90, and the flange portions 27, 47 are fixed to the wall 90 with the flange portions 27, 47 overlapping the surface of the wall 90. Therefore, the protruding height of the piping cover 10 from the surface of the wall 90 can be kept small.

(2) The length of the first base member 20 and the first decorative cover 30 that constitute the piping cover 10 is determined according to the length of the piping member 80 to be housed. At the construction site, workers cut the first base member 20 and the first decorative cover 30, each of which has a fixed length (e.g., 2 to 3 m), to a predetermined length determined according to the length of the piping member 80, and then perform construction. Therefore, if the cut surface 30a of the first decorative cover 30 is exposed to the outside, the aesthetic appearance of the piping cover 10 may be compromised.

In this regard, according to the above configuration, the cut surface 30a of the first decorative cover 30 is covered by the cut surface cover 70, so that the cut surface 30a is not exposed to the outside, improving the appearance of the piping cover 10.

(3) If a pair of splints 92 are fixed to the back surface of the wall 90 on both sides of the slit 91 along the extension direction of the slit 91, the peripheral portion of the wall 90 around the slit 91 is reinforced. If the flange portion 27 of the first base member 20 is fixed to such a wall 90, the flange portion 27 can be stably supported by the wall 90.

With the above configuration, the outer surfaces of the pair of side walls 23 that form the storage recess 21 of the first base member 20 are planar and parallel to each other, so that the outer surfaces of the pair of side walls 23 run along the side surfaces of the pair of splints 92 arranged on both sides of the slit 91. This allows the first base member 20 to be positioned relative to the wall 90. This improves ease of construction when fixing the first base member 20 to the wall 90.

(4) The first decorative cover 30 has a cut surface 30a, which is covered by the second decorative cover 50. With this configuration, when the piping cover 10 is viewed from the front, the first decorative cover 30 and the second decorative cover 50 are continuous, and the cut surface 30a of the first decorative cover 30 is covered by the second decorative cover 50. Therefore, the appearance of the piping cover 10 can be improved without providing a dedicated cover to cover the cut surface 30a of the first decorative cover 30.

(5) The protruding height of the decorative covers 30, 50 and the cut surface cover 70 from the surface of the wall 90 is equal to or less than the protruding height of the baseboard 93 from the surface of the wall 90. With this configuration, the decorative covers 30, 50 and the cut surface cover 70 do not protrude forward from the baseboard 93, so that the decorative covers 30, 50 and the cut surface cover 70 do not get in the way when placing a washing machine or the like close to the wall 90. Therefore, the washing machine or the like can be placed with a small distance from the wall 90.

(6) The method of installing the pipe cover 10 includes the steps of forming a slit 91 in the wall 90 that extends in the vertical direction, and fixing a splint to the rear surface of the wall 90 along the extension direction of the slit 91. The above installation method also includes the steps of inserting the accommodating recesses 21, 41 of the base members 20, 40 into the slit 91 and fixing the flange portions 27, 47 to the wall 90 in such a manner that the wall 90 is sandwiched between the slit 91 and the splint 92, and assembling the decorative covers 30, 50 to the base members 20, 40.

According to this method, the splint 92 is fixed to the rear surface of the wall 90 along the extending direction of the slit 91, thereby reinforcing the peripheral portion of the wall 90 around the slit 91. By fixing the flange portions 27, 47 of the base members 20, 40 to the wall 90, the flange portions 27, 47 can be stably supported by the wall 90.

(7) Each flange portion 27 of the first base member 20 has a plurality of screw holes 28 spaced apart from one another. With this configuration, when fixing each flange portion 27 to the wall 90, the screws 94 already installed in the wall 90 can be visually observed through the screw holes 28. This makes it possible to avoid installing screws 96 in positions that overlap with the screws 94.

In addition, when cutting the first base member 20 of a fixed length to a predetermined length determined according to the length of the piping member 80, the first base member 20 can be cut while checking the position of the screw 94 through the screw hole 28 of the first base member 20 so that the position of the screw 94 already installed in the wall 90 does not overlap with the position of the screw hole 28.

(8) The upper end of the slit 91 is formed in an arc shape when viewed from the front. This reduces stress concentration at the upper end of the slit 91 in the wall 90. This effectively prevents cracks from occurring in the wall 90.

(9) The outer peripheral surface of the side wall 43 of the second base member 40 is inverted U-shaped when viewed from the front. Therefore, whether the shape of the upper end of the slit 91 is arc-shaped when viewed from the front as in this embodiment, or rectangular when viewed from the front, the accommodating recess 41 of the second base member 40 can be inserted and installed.

(Modifications) The above embodiment can also be modified, for example, as follows. This embodiment and the following modifications can be combined to the extent that they are not technically inconsistent. The shape of the upper end of the slit 91 is not limited to an arc shape when viewed from the front. For example, the slit can also be rectangular when viewed from the front. In this case, the slit can be easily formed in the wall 90.

- The modified example of the second base member 40 shown in Figures 12(a) and 12(b) has a pair of engagement portions 46 protruding to the front side on the bottom wall 42. The pair of engagement portions 46 are arranged side by side on the first base member 20 side with respect to a pair of screw holes 45 formed on either side of the recess 42a in the width direction. Note that in the second base member 40 shown in Figure 12, configurations that are the same as or correspond to those in the above embodiment are given the same reference numerals and redundant explanations will be omitted.

As shown in Figures 13(a) and 13(b), the joint 82 used with the modified second base member 40 is an elbow-shaped joint having a first connection port 82a to which the pipe 81 is connected and a second connection port 82b to which a water faucet (not shown) is connected, in the same manner as in the above embodiment, and has multiple mounting seats 83A, 83B.

Specifically, the multiple mounting seats 83A, 83B include one mounting seat 83A that protrudes from the main body of the joint 82 toward the side opposite the first connection port 82a (the upper side in the figure), and a pair of mounting seats 83B that protrude from this outer portion toward the outside in the width direction. Each mounting seat 83A, 83B is open toward the tip in the protruding direction and has an insertion portion 83a through which a screw 97 is inserted.

Next, as shown in FIG. 14, the steps of the process of attaching the piping member 80 to the second base member 40 will be described. First, as shown in FIG. 14(a), a screw 97 is temporarily fastened into the top screw hole 45 of the second base member 40. At this time, the distance between the head of the screw 97 and the bottom wall 42 of the second base member 40 is greater than the thickness of the mounting seat 83A of the joint 82.

Then, while tilting the joint 82 relative to the second base member 40, the insertion portion 83a of the mounting seat 83A is inserted into the portion of the screw 97 between its head and the bottom wall 42 of the second base member 40. This temporarily holds the joint 82 in place on the second base member 40. At this time, the upper end of the pipe 81 is connected to the first connection port 82a of the joint 82.

Next, as shown in FIG. 14(b), the joint 82 is pushed into the recess 42a. This causes the pair of left and right mounting seats 83B to abut against the bottom wall 42 of the second base member 40 and also abut against the upper surfaces of the pair of engagement portions 46, thereby engaging with the second base member 40.

Finally, as shown in FIG. 14(c), the screws 97 that were temporarily tightened are fully tightened, and the pair of screws 97 are inserted into the insertion portions 83a of the pair of left and right mounting seats 83B and screwed into the screw holes (not shown). In this way, the joint 82 is assembled to the second base member 40.

With this configuration, the joint 82 can be temporarily held on the second base member 40, so the worker does not need to hold down the joint 82 with one hand when screwing in the screw 97. This improves the ease of installation of the joint 82.

- The screw holes 28 provided in each flange portion 27 of the first base member 20 can also be omitted. In this case, the worker at the construction site will determine the position in the flange portion 27 where the screw 96 is screwed in. At this time, as shown in FIG. 9, for example, it is preferable to form a protrusion 29 extending in the longitudinal direction (the vertical direction in the figure) on the surface of each flange portion 27 as a marker for the position where the screw 96 is screwed in.

- In the above embodiment, the slits 91 are formed in the wall 90 along the vertical direction in order to arrange the piping member 80 along the vertical direction, but if the piping member 80 is arranged along the left-right direction perpendicular to the vertical direction, for example, the slits 91 may be formed along the left-right direction.

- In the above embodiment, a pair of splints 92 are fixed to the back surface of the wall 90, but one or both of the splints 92 may be omitted. - For example, the protruding height of the second decorative cover 50 and the cut surface cover 70 from the surface of the wall 90 may be greater than the protruding height of the baseboard 93 from the surface of the wall 90. The same applies to the first decorative cover 30.

- In the above embodiment, the installation method of the piping cover 10 that houses the piping members 80 extending upward from the underfloor piping has been described, but the present invention can also be embodied as an installation method of a piping cover that houses piping arranged above the ceiling, i.e., piping members extending downward from the so-called ceiling piping. In this case, the base members 20, 40 and the decorative covers 30, 50 are provided below the molding provided at the top of the wall 90. Even in this case, if the protruding height of the decorative covers 30, 50 and the cut surface cover 70 from the surface of the wall 90 is set to be equal to or less than the protruding height of the molding from the surface of the wall 90, an effect similar to that of the above embodiment (5) can be achieved.

- The cut surface 30a at the upper end of the first decorative cover 30 may not be covered by the second decorative cover 50. In this case, a dedicated cover may be provided to cover the cut surface 30a at the upper end of the first decorative cover 30.

- The pair of side walls 23 of the first base member 20 may be closer to each other as they approach the bottom wall 22. The same applies to the second base member 40. - The number of support members 60 can be changed as appropriate. Also, the support members 60 can be omitted.

- For example, if the lower end of the first decorative cover 30 is not the cut surface 30a, the cut surface cover 70 can be omitted.

- As shown in Figures 15 and 16, in the process of inserting the accommodating recess 21 of the first base member 20 into the slit 91 of the wall 90 and fixing the flange portion 27 of the first base member 20 to the wall 90, an opening correction tool 100 is used to correct the dimensions of the opening of the accommodating recess 21. In this way, it is possible to easily assemble the first decorative cover 30 to the first base member 20 and to ensure a high level of fit between the first base member 20 and the first decorative cover 30. This is explained in detail below.

The first base member 20, which is thin and made of a resin material, is easily deformed by external forces acting on the flange portion 27 during installation, such as when the screw 96 is screwed in, and the width of the opening 21a of the storage recess 21, which has particularly low rigidity, in other words the distance between the pair of side walls 23 on the opening 21a side, becomes wider or narrower than the specified value L.

When the distance between the pair of side walls 23 on the opening 21a side becomes wider than the specified value L, the distance between the pair of third ridges 26 located on the opening 21a side becomes wider than the specified value. When the first base member 20 is fixed to the wall 90 by the screws 96 with the distance between the pair of third ridges 26 wider than the specified value, the engagement of the locking claws 33 with the third ridges 26, i.e., the fit between the first base member 20 and the first decorative cover 30, becomes loose, and the first base member 20 becomes more likely to fall off the first decorative cover 30.

Conversely, when the distance between the pair of side walls 23 on the opening 21a side becomes narrower than the specified value L, the distance between the pair of third ridges 26 located on the opening 21a side becomes narrower than the specified value. When the first base member 20 is fixed to the wall 90 by the screws 96 with the distance between the pair of third ridges 26 narrower than the specified value, the engagement of the locking claws 33 with the third ridges 26, i.e., the fit between the first base member 20 and the first decorative cover 30, becomes difficult, making it difficult to assemble the first decorative cover 30 to the first base member 20.

The opening correction jig 100 is for correcting the opening 21a of the storage recess 21 in the first base member 20 to set the width of the opening 21a to a specified value L. The opening correction jig 100 is integrally molded from a synthetic resin material with an insertion portion 110 for preventing the width of the opening 21a of the storage recess 21 from becoming less than the specified value L, and a restraint portion 120 for preventing the width of the opening 21a of the storage recess 21 from exceeding the specified value L.

The insertion section 110 has an insertion plate 111 having the same width as the specified value L, and an engagement plate 112 connected to the insertion plate 111 and having a width smaller than the specified value L. An engagement recess 112a is formed on each of both end faces in the width direction of the engagement plate 112. The plate thickness of the insertion plate 111 is 10 to 30% of the regulated value L.

The restraint section 120 has a pair of restraint plates 121 that protrude from both end faces of the insertion plate 111 in the width direction. Each restraint plate 121 is bent in a crank shape near the insertion plate 111, and a restraint recess 121a is formed by the bent portion and the end face of the insertion plate 111. The width of each restraint recess 121a is approximately the same as the width of the rib 21b that protrudes from the flange portion 27 in the first base member 20 to form the opening 21a. The thickness of the tip of each restraint plate 121 is approximately the same as or smaller than the gap S (see Figure 4) between the cover body 31 and the flange portion 27.

The opening correction jig 100 is attached to the first base member 20 near the screw hole 28 before the first base member 20 is fixed to the wall 90 with the screw 96. This attachment is performed by inserting the insertion portion 110 of the opening correction jig 100 into the opening 21a of the accommodation recess 21 of the first base member 20. When the insertion portion 110 is inserted to a predetermined position into the opening 21a of the accommodation recess 21, each rib 21b is inserted into the corresponding restraining recess 121a.

When the insertion portion 110 is inserted to a predetermined position into the opening 21a of the storage recess 21, the engagement recess 112a of the engagement plate 112 engages with the corresponding second protrusion 25, so the opening correction jig 100 can be maintained attached to the first base member 20 even without the support of the worker. In addition, since the plate thickness of the insertion plate 111 is appropriately large at 10 to 30% of the regulated value L, the insertion force of the insertion plate 111 into the opening 21a can be reduced while stabilizing the posture of the insertion plate 111 when inserted into the opening 21a, and the opening correction jig 100 does not collapse during insertion, resulting in good workability.

Now, if the width of the opening 21a is smaller than the specified value L before the opening correction jig 100 is inserted, the width is corrected by inserting the insertion plate 111 and widened to the specified value L. If the width of the opening 21a is larger than the specified value L before the opening correction jig 100 is inserted, the width is corrected by inserting the corresponding rib 21b into each restraining recess 121a and narrowed to the specified value L.

With the opening correction tool 100 attached, if the first base member 20 is fixed to the wall 90 by screwing the screws 96 into the flange portion 27 (screw holes 28), the width of the opening 21a will be maintained at the specified value L even after the opening correction tool 100 is removed. By repeating this correction work near the corresponding pair of screw holes 28 using one opening correction tool 100, or by attaching a dedicated opening correction tool 100 to each corresponding pair of screw holes 28, the width of the opening 21a will not deviate from the specified value L as a whole in the longitudinal direction of the first base member 20.

When the correction work is to be performed with one opening correction tool 100, the opening correction tool 100 may be slid in the longitudinal direction of the first base member 20 while remaining inserted in the first base member 20 until it approaches the next pair of screw holes 28. Since the plate thickness of the insertion plate 111 is appropriately increased to 10-30% of the regulated value L, the opening correction tool 100 does not collapse when it is slid to the next pair of screw holes 28, resulting in good workability.

Here, as shown in FIG. 16, when the opening correction jig 100 is attached, if the screw 96 is properly screwed into the flange portion 27 (screw hole 28) and the amount that the screw 96 protrudes from the flange portion 27 is less than the thickness of the tip of the corresponding restraint plate 121, it can be known in advance that the protruding portion of the screw 96 from the flange portion 27 will fit into the gap S between the cover body 31 and the flange portion 27, in other words, that the protruding portion will not hinder the assembly of the first decorative cover 30 to the first base member 20.

On the other hand, although not shown, if the screw 96 is not sufficiently screwed into the flange portion 27 (screw hole 28) when the opening correction jig 100 is attached and the amount that the screw 96 protrudes from the flange portion 27 is greater than the thickness of the tip of the corresponding restraint plate 121, it can be known in advance that the protruding portion of the screw 96 from the flange portion 27 will not fit into the gap S between the cover body 31 and the flange portion 27, in other words, that the protruding portion will hinder the assembly of the first decorative cover 30 to the first base member 20.

- Figures 17 and 18 show a modified example of the opening correction jig 100. In this modified example of the opening correction jig 100, each restraining plate 121 is bent at a right angle near the tip, not near the insertion plate 111, and a restraining recess 121a is formed by the bent portion and the end face of the insertion plate 111. The width of each restraining recess 121a is approximately the same as the width of the corresponding flange portion 27 plus the width of the rib 21b.

When the insertion portion 110 is inserted to a predetermined position into the opening 21a of the accommodation recess 21, each flange portion 27 and each rib 21b is inserted into the corresponding restraining recess 121a. Then, if the width of the opening 21a is larger than the specified value L before the opening correction jig 100 is inserted, the width is corrected by inserting the corresponding flange portion 27 and rib 21b into each restraining recess 121a and narrowed to the specified value L.

When the opening correction jig 100 is attached, a gap is formed between each restraint plate 121 and the corresponding flange portion 27. The gap is equal to or smaller than the gap S between the cover body 31 and the flange portion 27.

Therefore, as shown in FIG. 18, if the screw 96 is properly screwed into the flange portion 27 (threaded hole 28) and the amount by which the screw 96 protrudes from the flange portion 27 is less than the gap S between the cover body 31 and the flange portion 27, even if the opening correction jig 100 is moved in the longitudinal direction of the first base member 20, the movement will not be hindered by the protruding portion of the screw 96 from the flange portion 27. From this, it can be known in advance that the protruding portion of the screw 96 from the flange portion 27 will fit into the gap S between the cover body 31 and the flange portion 27, in other words, that the protruding portion will not hinder the assembly of the first decorative cover 30 to the first base member 20.

On the other hand, although not shown, if the screw 96 is not sufficiently screwed into the flange portion 27 (threaded hole 28) and the amount by which the screw 96 protrudes from the flange portion 27 is greater than the gap S between the cover body 31 and the flange portion 27, when the opening correction jig 100 is moved in the longitudinal direction of the first base member 20, the movement is hindered by the protruding portion of the screw 96 from the flange portion 27. From this, it can be known in advance that the protruding portion of the screw 96 from the flange portion 27 will not fit into the gap S between the cover body 31 and the flange portion 27, in other words, that the protruding portion will hinder the assembly of the first decorative cover 30 to the first base member 20.

(Additional Note) The technical idea that can be understood from the above embodiment is that, in the wall-embedded pipe cover described in any one of claims 1 to 5, the opening correction jig is used in the process of fixing the flange portion of the base member to the wall with a screw, and corrects the width of the opening of the storage recess, and is equipped with a judgment means for judging whether the amount of protrusion of the screw from the flange portion is appropriate when attached to the base member.

10...piping cover 20...first base member 21...accommodating recess 21a...opening 21b...rib 22...bottom wall 23...side wall 24...first ridge 25...second ridge 26...third ridge 27...flange portion 28...screw hole 29...ridge 30...first decorative cover 31...cover body 31a...cut surface 32...ridge 33...locking claw 40...second base member 41...accommodating recess 41a...opening 42...bottom wall 42a...recess 43...side wall 44...extension 45...screw hole 46...engagement portion 47...flange portion 48...screw hole 49...engagement hole 50...second decorative cover 51...cover body 51a...edge 51b...edge 51c...insertion hole 52...locking claw 60...support member 61...Base plate 61a...Long hole 61b, 61c...Corner 61d...Insertion protrusion 62...Regulation protrusion 63...Support 70...Cutting surface cover 80...Pipe member 81...Pipe 82...Joint 82a...First connection port 82b...Second connection port 83A, 83B...Mounting seat 83a...Insertion portion 90...Wall 90a...Hole 91...Slit 92...Splinter 93...Baseboard 94, 95, 96, 97...Screw 100...Opening correction jig 110...Insertion portion 111...Insertion plate 112...Engagement plate 112a...Engagement recess 120...Restraint portion 121...Restraint plate 121a...Restraint recess

Claims (1)

a base member including: an elongated recessed portion that is inserted into a slit formed in a wall, has an opening that opens toward the front side of the wall, and accommodates a pipe ; and flange portions that are formed on both sides of the recessed portion and are secured to the wall by screws in a state where they are superimposed on the surface of the wall;
a flat decorative cover that is attached to the base member, covers the opening of the accommodating recess, and is overlapped with the flange portion ;
A locking claw formed on the decorative cover is engaged with a protrusion formed on an inner surface of the accommodating recess, thereby assembling the decorative cover to the base member.
Wall-mounted pipe cover.

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