JP7406344B2 - Piping support and piping installation method - Google Patents

Description

The present invention relates to a pipe support and a pipe laying method.

Patent Document 1 discloses a pipe clamp structure used when fixing piping to a floor surface or the like. The pipe clamp structure of Patent Document 1 includes a base fixed to a mounting surface such as a floor, a pair of support parts continuously formed from both ends of the base toward the top, and a pair of support parts. It has an arc-shaped clamping piece that is provided at each of the pipes and clamps the pipe.

Patent No. 4829706

Here, in the pipe clamp structure of Patent Document 1, a fitting protrusion and a fitting recess that engages with the fitting protrusion are provided on the upper side of the holding piece. As a result, a convex portion that projects upward is formed on the holding piece. Therefore, when placing an object such as flooring on the upper side of the pipe supported by the holding piece (i.e., on the opposite side of the mounting surface to the pipe), the height of the convex portion between the object and the pipe is It is necessary to keep away from.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to provide a piping support tool that allows objects to be placed close to the supported piping on the side opposite to the mounting surface for the piping.

The piping support of the first aspect includes a pair of supporting parts spaced apart from each other that are attached to a mounting surface, a receiving part that is rotatably supported by each of the supporting parts and receives the piping, and a receiving part that receives the pipe in each of the receiving parts. Each of the receiving parts includes an engaging part provided on a mounting surface side, and an engaged part provided on each of the supporting parts to engage with the engaging part and fix the receiving part. is such that the distance between the opposite end of one of the receiving parts on the opposite side to the mounting surface side and the opposite end of the other receiving part on the opposite side to the mounting surface side is smaller than the diameter of the piping. and the spacing is smaller than the diameter of the pipe so that the engaging portion engages with the engaged portion. is rotatable in the opposite second direction.

According to the configuration of the first aspect , the distance between the opposite end of one receiving part on the opposite side to the mounting surface side and the opposite end part of the other receiving part on the opposite side to the mounting surface side is the same as that of the piping. Each receiving portion is rotated in the first direction so that the receiving portion becomes larger than the diameter. Then, the piping is inserted between the one receiving part and the other receiving part from the opposite end side, and each receiving part is rotated in the second direction so that the engaging part engages the engaged part. By moving it, the receiving part receives the piping. Thereby, the piping can be supported by the piping support.

Here, in the configuration of the first aspect , since the engaging part is provided on the mounting surface side of the receiving part, when placing the object on the opposite side to the mounting surface for the pipe supported by the pipe support, , the engaging portion is located at a position remote from the arrangement. Therefore, the engaging portion is less likely to get in the way, and objects can be placed close to the piping on the opposite side.

In the piping support of a second aspect , the support part has a support point located at a position away from the mounting surface, rotatably supports the receiving part at the support point, and The portion is provided closer to the mounting surface than the support point in the receiving portion.

In the configuration of the second aspect , since the engaging part is provided closer to the mounting surface than the support point in the receiving part, when placing the object on the side opposite to the mounting surface for the piping supported by the piping support. In this case, the engaging portion is located further away from the object. Therefore, the engaging portion is less likely to get in the way, and objects can be placed close to the piping on the opposite side.

In the third aspect of the piping support, the engaged portion has a hole formed in the supporting portion, and the engaging portion extends from the receiving portion toward the supporting portion and is convex on the distal end side. The device has a shaped claw portion, and after the claw portion passes through the hole by rotating the receiving portion in the second direction, it is caught on the edge of the hole.

According to the configuration of the third aspect , when the receiving portion is rotated in the second direction, the claw portion passes through the hole formed in the support portion and then is caught on the edge of the hole. As the engaging portion engages with the engaged portion in this manner, the receiving portion is fixed so as not to rotate in the first direction.

As described above, in the configuration of the third aspect , the engaging part engages with the engaged part by the claw part catching on the edge of the hole formed in the support part, so the receiving part can be connected with a simple structure. Can be fixed.

In the piping support of a fourth aspect , an inclined surface is provided inside the hole to guide the claw portion passing through the hole to the edge portion by rotation of the receiving portion in the second direction. .

According to the configuration of the fourth aspect , the inclined surface guides the claw portion passing through the hole toward the edge by rotation of the receiving portion in the second direction, so that the engaging portion moves smoothly to the engaged portion. .

In the piping support according to the fifth aspect , the hole reaches an end of the support portion on the mounting surface side.

According to the configuration of the fifth aspect , since the hole reaches the end on the side of the mounting surface of the support, when injection molding the piping support, the mold for forming the hole is placed on the side of the mounting surface of the support. It can be pulled out from the end. Therefore, the pipe support can be manufactured by injection molding using a mold with a simple structure.

In the piping support of a sixth aspect , the receiving part has an arcuate cross section, and the engaging part forms a virtual circle along the inner circumferential surface of the receiving part in a state in which the engaging part is engaged with the engaged part. In this case, the opposite end of the receiving portion is located on a tangent line along the mounting surface at a position farthest from the mounting surface of the virtual circle, or on a tangent line closer to the mounting surface than the tangent line. has been done.

According to the configuration of the sixth aspect , since the opposite end of the receiving part is arranged on the tangent or on the mounting surface side of the tangent, the mounting surface for the pipe supported by the piping support is different from the mounting surface. When placing an object on the opposite side, the opposite end of the receiving part is less likely to get in the way. Therefore, an object can be placed on the opposite side close to the piping.

The piping support of a seventh aspect is provided in one of the receiving part and the supporting part, and the receiving part and the supporting part are rotated by a predetermined amount of rotation of the receiving part in the second direction. The other of the two is provided with a restriction portion that restricts rotation exceeding the predetermined amount of rotation.

Here, if the receiving part rotates beyond a predetermined amount of rotation, the position where the receiving part receives the pipe may shift toward the mounting surface. On the other hand, in the configuration of the seventh aspect , the restriction part restricts the rotation of the receiving part in the second direction exceeding the predetermined amount of rotation, so that the position where the receiving part receives the pipe is on the mounting surface side. This prevents deviation from occurring. As a result, when one pipe is supported by a plurality of pipe supports, the distance between the mounting surface and the pipe can be made equal at the support position of each pipe support.

The piping installation method according to the eighth aspect includes using the piping support according to any one of the first to seventh aspects to horizontally lay the piping while being separated from the floor surface as the mounting surface. Laying pipes.

According to the configuration of the eighth aspect , since the piping support according to any one of the first to seventh aspects is used, the flooring material is placed on the side opposite to the mounting surface for the piping supported by the piping support. In the case of arrangement, the flooring and piping can be brought close to each other. Therefore, the height of the piping can be increased without changing the height of the flooring, and the space between the piping and the floor can be increased.

As explained above, the piping support of the present invention has the excellent effect that objects can be placed close to the supported piping on the side opposite to the mounting surface for the piping.

It is a side view showing a siphon drainage system concerning this embodiment. It is a perspective view showing a piping support concerning this embodiment. It is a front view showing a piping support concerning this embodiment. In the pipe support shown in FIG. 3, it is a front view showing a state in which the pair of receivers are rotated so that the upper end portions of the pair of receivers are larger than the diameter of the horizontal drawing pipe. It is a front view which shows the case where the metal mold|die (slide mold) which forms the hole of the support part in the piping support device based on this embodiment is pulled out below.

An example of an embodiment according to the present invention will be described below based on the drawings.

(Siphon drainage system 10)
First, the siphon drainage system 10 in which the piping support 32 is used will be described. FIG. 1 schematically shows the overall configuration of a siphon drainage system 10 according to this embodiment. The siphon drainage system 10 is a drainage system that utilizes siphon force to efficiently discharge wastewater from plumbing fixtures.

Specifically, as shown in FIG. 1, the siphon drainage system 10 is used, for example, in an apartment complex that has multiple floors (only a predetermined floor is shown in FIG. 1). The housing complex is equipped with a drainage standpipe 12 that allows wastewater to flow downward. The drainage standpipe 12 extends in the vertical direction (vertical direction) of the housing complex, and penetrates the concrete floor slab 14 on each floor of the housing complex. The siphon drainage system according to the present invention is suitably used in apartment complexes, but can also be used in detached houses, factories, etc. other than apartment complexes.

In each unit on each floor of the apartment complex, a plumbing fixture 16 is installed on the flooring 17 of the living room 19 (on the right side of the wall DL indicated by the two-dot chain line in FIG. 1). A drainage trap 18 is connected to the downstream side in the direction.

As shown in FIG. 1, in the floor slab 14 below the living room 19, the lower area where the plumbing fixtures 16 are arranged is a concave step slab 14A that is lowered one step to allow various pipes to pass through. . As an example, the height from the top surface of the floor slab 14 to the top surface of the floor material 17 is approximately 130 mm, the height dimension from the top surface 15 of the stepped slab 14A to the top surface of the floor material 17 is approximately 240 mm, and the height dimension from the top surface of the floor material 17 is approximately 130 mm. The thickness is approximately 30 mm.

As shown in FIG. 1, an L-shaped piping member 20 bent into an L-shape is arranged downstream of the drainage trap 18 in the drainage direction. The L-shaped piping member 20 includes a vertical part 20A connected to the drain trap 18 and extending in the vertical direction, a horizontal part 20B arranged horizontally on the step slab 14A and extending in the horizontal direction, and the vertical part 20A and the horizontal part 20B. It is configured to include a curved portion 20C that connects the two. As the L-shaped piping member 20, for example, a commercially available product (for example, also called an elbow) made of synthetic resin such as hard vinyl chloride resin can be used.

A horizontal draw pipe 22 that constitutes a part of the siphon drain pipe 21 is arranged downstream of the L-shaped piping member 20 in the drainage direction. The horizontal drawing pipe 22 of this embodiment is a flexible synthetic resin pipe with a nominal diameter of 20 defined in JIS K6778 and JIS K6792. As the synthetic resin piping used for the horizontally drawn pipe 22, for example, a flexible polybutene pipe can be used, but other types of synthetic resin piping can also be used. Further, the horizontal drawing pipe 22 is not limited to one having a nominal diameter of 20, but may be one having a nominal diameter of 25.

A meter box 24 is provided outside the living room 19 on the downstream side of the horizontal pipe 22 in the drainage direction. In this embodiment, the floor surface 14B of the meter box 24 is continuously connected to the stepped slab 14A below the living room 19 in the horizontal direction.

A drop pipe 26 bent into an L shape and forming a part of the siphon drain pipe 21 is arranged inside the meter box 24. The drop pipe 26 is configured to include a horizontal portion 26A disposed on the step slab 14A and extending in the horizontal direction, a vertical portion 26B extending in the vertical direction, and a curved portion 26C connecting the horizontal portion 26A and the vertical portion 26B. ing. As the drop pipe 26, for example, a commercially available product (for example, also called an elbow) made of synthetic resin such as hard vinyl chloride resin can be used.

On the downstream side of the drop pipe 26 in the drainage direction, a vertical pipe member 34 that forms a part of the siphon drain pipe 21 and extends in the vertical direction is arranged. The vertical pipe member 34 is connected to the vertical portion 26B of the drop pipe 26 via a joint 36. The downstream end of the vertical pipe member 34 in the drainage direction is connected to a merging joint 38 attached to the intermediate portion of the drainage vertical pipe 12 . Note that the same piping as the horizontal pipe 22 is used for the vertical pipe member 34 of this embodiment.

The upstream end of the horizontal draw pipe 22 is connected to the horizontal portion 20B of the L-shaped piping member 20 via a joint 28, and the downstream end is connected to the drop pipe 26 via a joint 30. It is connected to the horizontal section 26A.

A plurality of locations in the longitudinally intermediate portion of the horizontal drawing pipe 22 are horizontally supported by a plurality of piping supports 32 attached to the upper surface 15 of the stepped slab 14A. Thereby, the horizontal drawing pipe 22 is arranged upwardly apart from the stepped slab 14A. In this way, by arranging the horizontally drawn pipe 22 upwardly and away from the stepped slab 14A, a space is formed between the horizontally drawn pipe 22 and the stepped slab 14A. Pipes 29 such as gas pipes and water supply pipes are arranged in this space.

(Piping support 32)
Next, the piping support 32 will be explained. The structure of the piping support 32 is shown in FIGS. 2, 3, and 4. Note that the arrow UP shown in the figure indicates upward (vertically upward), and the arrow DO indicates downward (vertically downward). Further, the direction of the arrow LH shown in the figure will be described as being to the left of the piping support 32, and the arrow RH will be described as being to the right of the piping support 32. Further, the arrow FR direction shown in the figure will be described as the front of the piping support 32, and the arrow RR direction will be described as the rear of the piping support 32. Further, a symbol in which an "x" is written inside an "o" in the figure means an arrow pointing from the front to the back of the page. In addition, the symbol "•" written inside the "○" in the figure means an arrow pointing from the back of the page to the front. Note that the above-mentioned left, right, front, and rear directions are directions determined for convenience of explanation, so the configuration of the piping support 32 is not limited to these directions.

The piping support 32 is a support that supports the horizontal pipe 22 (see FIG. 1) as an example of piping. This piping support 32 is used by being attached to the step slab 14A (see FIG. 1) to which it is attached. The piping support 32 is, for example, integrally formed of a resin material.

Specifically, as shown in FIGS. 2, 3, and 4, the piping support 32 includes a main body 40, a pair of receiving parts 53, 54, engaging parts 73, 74, and an engaged part. 83 and 84, and restriction portions 93 and 94.

As shown in FIG. 3, the main body 40 is attached to the upper surface 15 (an example of a mounting surface and an example of a floor surface) of the stepped slab 14A. The main body 40 is fixed to the step slab 14A by being attached to the upper surface 15 of the step slab 14A. In other words, the main body 40 is a non-movable part that does not move when it is attached to the upper surface 15 of the stepped slab 14A. Furthermore, the main body 40 has a support function of rotatably supporting the receiving parts 53 and 54. Specifically, the main body 40 includes a mounting plate 42 and a pair of support parts 43 and 44.

The mounting plate 42 is formed into a plate shape whose thickness direction is the vertical direction (that is, the direction perpendicular to the mounting surface). A mounting hole 42A through which a fastening member (not shown) such as a screw is passed is formed in the mounting plate 42 so as to penetrate in the vertical direction. Specifically, the mounting hole 42A is located at the center of the mounting plate 42 in the left-right direction and in the front-rear direction (see FIG. 2). In the main body 40, the mounting plate 42 is attached to the upper surface 15 of the stepped slab 14A by fastening a fastening member (not shown) passed through the mounting hole 42A to the stepped slab 14A.

The support portion 43 extends upward from the left end of the mounting plate 42, as shown in FIG. The support portion 44 extends upward from the right end of the mounting plate 42 . Thereby, the pair of support parts 43 and 44 are spaced apart from each other in the left-right direction. Furthermore, the supporting parts 43 and 44 are attached to the upper surface 15 of the step slab 14A by attaching the mounting plate 42 to the upper surface 15 of the step slab 14A. That is, the support parts 43 and 44 are attached to the upper surface 15 via the attachment plate 42.

Each of the support parts 43 and 44 is formed into a plate shape with the thickness direction being in the left-right direction. The width of each of the support parts 43 and 44 in the front-rear direction is the same as the width of the mounting plate 42 in the front-rear direction (see FIG. 2).

As shown in FIG. 3, the support portion 43 has a left side surface 43L that is a plane extending in the vertical direction. The right side surface 43R of the support portion 43 is a flat surface extending in the vertical direction in a portion below the upper end portion 43H (tip portion). The upper end 43H of the right side surface 43R is gradually inclined to the left as it goes upward. As a result, the thickness of the support portion 43 in the left-right direction gradually becomes thinner at the upper end portion 43H. The support portion 43 is connected to the receiving portion 53 at its upper end (tip), and the upper end serves as a support point 51 that supports the receiving portion 53. In other words, the support portion 43 has a support point 51 located away from the upper surface 15 of the stepped slab 14A.

On the other hand, the right side surface 44R of the support portion 44 is a plane along the vertical direction. The left side surface 44L of the support portion 44 is a flat surface extending in the up-down direction in a portion below the upper end portion 44H (tip portion). The upper end 44H of the left side surface 44L is gradually inclined to the right as it goes upward. As a result, the thickness of the support portion 44 in the left-right direction gradually becomes thinner at the upper end portion 44H. The support portion 44 is connected to the receiving portion 54 at its upper end (tip), and the upper end serves as a support point 52 that supports the receiving portion 54 . In other words, the support portion 44 has a support point 52 located away from the upper surface 15 of the stepped slab 14A.

Note that the support points 51 and 52 are constituted by integral hinges. Further, the support points 51 and 52 may be formed by separate hinges that connect the receiving parts 53 and 54 and the support parts 43 and 44.

The receiving portions 53 and 54 have, for example, an arcuate cross-section when viewed in the front-rear direction. The width of the receiving parts 53 and 54 in the front-back direction is the same as the width of the mounting plate 42 and the supporting parts 43 and 44 in the front-back direction (see FIG. 2).

As shown in FIG. 3, the receiving part 53 is arranged above the supporting part 43 so that the inner circumferential surface thereof faces to the right. A portion of the outer circumferential surface of the receiving portion 53 located below the center in the vertical direction is connected to the support point 51 (upper end) of the support portion 43 . Thereby, the receiving part 53 is rotatably supported by the supporting part 43 at the supporting point 51.

Further, by connecting the receiving portion 53 to the support point 51 (upper end) of the support portion 43, a part of the receiving portion 53 is disposed below and to the right of the support point 51. This part of the receiving part 53 is hereinafter referred to as a lower part 53D of the receiving part 53.

On the other hand, the receiving part 54 is arranged above the supporting part 44 so that the inner circumferential surface thereof faces leftward. A portion of the outer circumferential surface of the receiving portion 54 located below the center in the vertical direction is connected to the support point 52 (upper end) of the support portion 44 . Thereby, the receiving part 54 is rotatably supported by the supporting part 44 at the supporting point 52.

Moreover, by connecting the receiving part 54 to the support point 52 (upper end) of the support part 44, a part of the receiving part 54 is disposed below and to the left of the supporting point 52. This part of the receiving part 54 is hereinafter referred to as a lower part 54D of the receiving part 54.

In the present embodiment, specifically, as shown in FIG. 4, the pair of receiving parts 53 and 54 include an upper end 53H of the receiving part 53 (an example of the end on the opposite side to the mounting surface side), The receiving portion 54 is rotatable in the first direction A1 so that the distance MA between the receiving portion 54 and the upper end portion 54H is larger than the diameter of the horizontal drawing pipe 22. Further, the pair of receiving portions 53 and 54 are arranged in the first direction A1 such that the interval MA is smaller than the diameter of the horizontal drawing tube 22 and the engaging portions 73 and 74 engage with the engaged portions 83 and 84. (See FIG. 3).

Note that the interval MA only needs to be larger than the diameter of the pipe to be supported. Therefore, if a pipe with a diameter smaller than the diameter of a virtual circle KR (described later) is to be supported, the interval MA should be larger than the diameter of the small-diameter pipe, and the interval MA should be larger than the diameter of the virtual circle KR. It doesn't have to be big.

The receiving parts 53 and 54 receive the horizontal drawing tube 22 inserted between the receiving parts 53 and 54. Specifically, the receiving parts 53 and 54 sandwich and hold the horizontal drawing tube 22 inserted between the receiving parts 53 and 54.

The engaging portion 73 is provided on the lower side of the receiving portion 53. In other words, the engaging portion 73 is provided below the center of the receiving portion 53 in the vertical direction. Specifically, the engaging portion 73 is provided at the lower portion 53D of the receiving portion 53. That is, the engaging portion 73 is provided below the support point 51 in the receiving portion 53 . The engaging portion 73 extends from the outer peripheral surface of the lower portion 53D of the receiving portion 53 toward the supporting portion 43 (specifically, diagonally downward to the left). Further, the engaging portion 73 has a convex claw portion 73A on the distal end side, and is formed into a hook shape that is folded back upward when viewed in the front-rear direction.

On the other hand, the engaging portion 74 is provided on the lower side of the receiving portion 54. In other words, the engaging portion 74 is provided below the center of the receiving portion 54 in the vertical direction. Specifically, the engaging portion 74 is provided at the lower portion 54D of the receiving portion 54. That is, the engaging portion 74 is provided below the support point 52 in the receiving portion 54 . The engaging portion 74 extends from the outer peripheral surface of the lower portion 54D of the receiving portion 54 toward the supporting portion 44 (specifically, diagonally downward to the right). Further, the engaging portion 74 has a convex claw portion 74A on the distal end side, and is formed into a hook shape that is folded back upward when viewed in the front-rear direction.

The engaged portion 83 has a function of engaging with the engaging portion 73 and fixing the receiving portion 53 to the supporting portion 43. Specifically, the engaged portion 83 includes a hole 83A formed in the support portion 43, an inclined surface 83B provided inside the hole 83A, and an edge 83C disposed above the hole 83A. have.

As shown in FIG. 2, the hole 83A reaches the lower end of the support portion 43. That is, the hole 83A is open downward. The inclined surface 83B is arranged above the hole 83A, and gradually slopes downward toward the left side. That is, the inclined surface 83B is a surface inclined diagonally downward to the left.

In this embodiment, the claw portion 73A of the engaging portion 73 passes through the hole 83A formed in the support portion 43 due to the rotation of the receiving portion 53 in the second direction A2. The claw portion 73A passing through the hole 83A is guided to the edge 83C by the inclined surface 83B. Then, the claw portion 73A guided by the inclined surface 83B passes through the hole 83A and then catches on the edge portion 83C. As a result, the engaging portion 73 engages with the engaged portion 83. In the state where the engaging portion 73 is engaged with the engaged portion 83 (hereinafter referred to as the engaged state of the engaging portion 73), the claw portion 73A protrudes to the left side from the left side surface 43L of the support portion 43. Then, by pushing the engaging portion 73 to the right side and elastically deforming the engaging portion 73, the engaged state of the engaging portion 73 is released.

On the other hand, the engaged portion 84 has a function of engaging with the engaging portion 74 and fixing the receiving portion 54 to the supporting portion 44 . Specifically, the engaged portion 84 includes a hole 84A formed in the support portion 44, an inclined surface 84B provided inside the hole 84A, and an edge 84C disposed above the hole 84A. have.

As shown in FIG. 2, the hole 84A reaches the lower end of the support portion 44. That is, the hole 84A is open downward. The inclined surface 84B is arranged above the hole 84A, and gradually slopes downward toward the right side. That is, the inclined surface 84B is a surface inclined diagonally downward to the right.

In this embodiment, the claw portion 74A of the engaging portion 74 passes through the hole 84A formed in the support portion 44 due to the rotation of the receiving portion 54 in the second direction A2. The claw portion 74A passing through the hole 84A is guided to the edge 84C by the inclined surface 84B. Then, the claw portion 74A guided by the inclined surface 84B passes through the hole 84A and then catches on the edge portion 84C. As a result, the engaging portion 74 engages with the engaged portion 84 . In the state where the engaging portion 74 is engaged with the engaged portion 84 (hereinafter referred to as the engaged state of the engaging portion 74), the claw portion 74A protrudes from the right side surface 44R of the support portion 44 to the right side. Then, by pushing the engaging portion 74 to the left side and elastically deforming the engaging portion 74, the engaged state of the engaging portion 74 is released.

Here, as shown in FIG. 3, in the engaged state of the engaging parts 73 and 74, the upper ends 53H and 54H of the receiving parts 53 and 54 are arranged on the tangent line SL. That is, in the engaged state of the engaging portions 73 and 74, the upper end portions 53H and 54H of the receiving portions 53 and 54 form a plane along the tangent line SL. The tangent SL is the upper end of the virtual circle KR (the upper surface of the stepped slab 14A) when assuming a virtual circle KR along the inner peripheral surfaces of the receiving parts 53 and 54 in the engaged state of the engaging parts 73 and 74. 15), and is a tangent along the upper surface 15 of the stepped slab 14A (specifically, a tangent parallel to the upper surface 15).

In addition, in the engaged state of the engaging parts 73 and 74, the upper end parts 53H and 54H of the receiving parts 53 and 54 and the lower end parts 53E and 54E of the receiving parts 53 and 54 are spaced apart from each other in the left-right direction.

The restriction portion 93 is provided in the receiving portion 53. Specifically, the restriction portion 93 is provided integrally with the engagement portion 73 on the outer peripheral surface of the lower portion 53D of the receiving portion 53. More specifically, the restricting portion 93 protrudes to the left between the base end portion of the engaging portion 73 and the lower portion 53D of the receiving portion 53. When the receiving portion 53 is rotated by a predetermined amount of rotation in the second direction A2, this limiting portion 93 hits the right side surface 43R of the support portion 43, and the rotation of the receiving portion 53 exceeding the predetermined amount of rotation is caused. limit. Note that the restricting portion 93 is formed between the base end portion of the engaging portion 73 and the lower portion 53D of the receiving portion 53, so that it also has a function of suppressing deformation of the engaging portion 73.

On the other hand, the restricting portion 94 is provided in the receiving portion 54 . Specifically, the restricting portion 94 is provided integrally with the engaging portion 74 on the outer peripheral surface of the lower portion 54D of the receiving portion 54. More specifically, the restricting portion 94 protrudes to the right between the base end portion of the engaging portion 74 and the lower portion 54D of the receiving portion 54. When the receiving portion 54 is rotated by a predetermined amount of rotation in the second direction A2, this limiting portion 94 hits the left side surface 44L of the support portion 44, and the rotation amount of the receiving portion 54 exceeds the predetermined amount of rotation. limit. Note that the restricting portion 94 is formed between the base end portion of the engaging portion 74 and the lower portion 54D of the receiving portion 54, so that it also has the function of suppressing deformation of the engaging portion 74.

(Method for laying horizontal pipe 22)
Next, a method of laying the horizontal pipe 22 on the stepped slab 14A will be explained. In this embodiment, the horizontal draw pipe 22 is laid by the following procedure.

First, a plurality of piping supports 32 are arranged on the upper surface 15 of the step slab 14A along the route in which the horizontal pipe 22 is laid (see FIG. 1). At this time, the piping support 32 is arranged so that the front-rear direction of the piping support 32 faces the axial direction of the horizontal pipe 22 to be laid.

Next, the pipe supports 32 are attached to the upper surface 15 of the step slabs 14A by fastening fastening members (not shown) passed through the mounting holes 42A of each pipe support 32 to the step slabs 14A (see FIG. 3). ).

Next, the receiving parts 53 and 54 are moved in the first direction A1 so that the distance MA between the upper end 53H of the receiving part 53 and the upper end 54H of the receiving part 54 is larger than the diameter of the horizontal drawing pipe 22. Rotate. Note that the receiving parts 53 and 54 may be rotated in the first direction A1 before the piping support 32 is attached to the upper surface 15 of the stepped slab 14A.

Next, the horizontal drawing tube 22 is inserted between the receiving portions 53 and 54 from the upper end portions 53H and 54H. Further, for example, by pushing the lower portions 53D, 54D of the receiving parts 53, 54 downwardly using the horizontal drawing pipe 22, the receiving parts 73, 74 can be engaged with the engaged parts 83, 84. The parts 53 and 54 are rotated in the second direction A2 (see FIG. 3). Thereby, the receiving parts 53 and 54 receive the horizontally drawn pipe 22, and the horizontally drawn pipe 22 is supported by the plurality of piping supports 32.

In this way, by supporting the horizontally drawn pipe 22 using the plurality of piping supports 32, the horizontally drawn pipe 22 is laid away from the upper surface 15 of the step slab 14A.

(Operations and effects of this embodiment)
Next, the effects of this embodiment will be explained.
In this embodiment, as described above, the engaging parts 73 and 74 are provided on the lower side of the receiving parts 53 and 54. Specifically, the engaging parts 73 and 74 are provided below the support points 51 and 52 in the receiving parts 53 and 54. Therefore, when the flooring 17 is placed above the horizontal pipe 22 supported by the piping support 32, the engaging portions 73 and 74 are positioned away from the flooring 17. Thereby, the engaging portions 73 and 74 are less likely to get in the way, and the flooring 17 can be placed close to the horizontal drawing pipe 22.

Furthermore, in this embodiment, as described above, in the state where the engaging parts 73 and 74 are engaged with the engaged parts 83 and 84, the upper ends 53H and 54H of the receiving parts 53 and 54 are on the tangent line SL. It is located. Therefore, when the floor material 17 is placed above the horizontal pipe 22 supported by the piping support 32, the upper ends 53H and 54H of the receiving parts 53 and 54 are less likely to get in the way. Thereby, the floor material 17 can be placed close to the horizontal drawing pipe 22.

In this way, in this embodiment, the flooring material 17 can be placed close to the horizontally drawn pipe 22, so the height of the horizontally drawn pipe 22 can be increased without changing the height of the flooring material 17. 22 and the upper surface 15 of the step slab 14A can be increased. In addition, since the height of the horizontally drawn pipe 22 can be increased, when laying the horizontally drawn pipe 22 above the existing piping (for example, a gas pipe, etc.) arranged on the upper surface 15 of the step slab 14A, it is possible to increase the height of the horizontally drawn pipe 22. It is easy to maintain a distance between the pipes 22 and 22, and the workability when laying the horizontal pipe 22 is good.

Here, if the receiving parts 53 and 54 rotate beyond a predetermined amount of rotation, the positions where the receiving parts 53 and 54 receive the horizontal drawing tube 22 may shift downward. On the other hand, in the present embodiment, the restricting parts 93 and 94 restrict the rotation of the receiving parts 53 and 54 in the second direction exceeding the predetermined amount of rotation, so that the receiving parts 53 and 54 can be moved laterally. The position for receiving the pull tube 22 is prevented from shifting downward. As a result, when the horizontally drawn pipe 22 is supported by a plurality of piping supports 32, the distance between the upper surface 15 of the step slab 14A and the horizontally drawn pipe 22 (in other words, the horizontally drawn pipe 22) is The heights of the draw pipes 22 can be made the same.

Further, in this embodiment, the engaging parts 73, 74 are connected to the engaged parts 83, 84 by the claw parts 73A, 74A being caught on the edges 83C, 84C of the holes 83A, 84A formed in the supporting parts 43, 44. , the receiving parts 53 and 54 can be fixed with a simple structure.

Moreover, in this embodiment, the inclined surfaces 83B and 84B disposed above the holes 83A and 84A pass through the holes 83A and 74A by the rotation of the receiving parts 53 and 54 in the second direction A2. Since the engaging parts 73 and 74 are guided to the edges 83C and 84C, the engaging parts 73 and 74 smoothly move to the engaged parts 83 and 84.

Furthermore, in this embodiment, the holes 83A and 84A formed in the support parts 43 and 44 reach the lower ends of the support parts 43 and 44 and open downward, so that the piping support 32 can be injection molded. In this case, as shown in FIG. 5, from the mold X forming the entire piping support 32, the mold (slide mold) It can be removed. Therefore, the pipe support 32 can be manufactured by injection molding using a mold with a simple structure. Note that in FIG. 5, illustration of the mounting hole 42A is omitted.

Further, since the holes 83A and 84A formed in the supporting parts 43 and 44 reach the lower end parts of the supporting parts 43 and 44, when the engaging state of the engaging parts 73 and 74 is released, the engaging parts 73 and A space for movement of the engaging portions 73 and 74 when elastically deforming the engaging portions 74 can be secured.

(Modified example)
Next, a modification of this embodiment will be described.
In this embodiment, the piping support 32 is used as a support for supporting the horizontal pipe 22, but the present invention is not limited thereto. For example, it may be used as a support for supporting a pipe other than the horizontal pipe 22 (for example, a vertical pipe arranged along the vertical direction). When the piping support 32 supports a vertical pipe arranged along the vertical direction, the piping support 32 is attached to, for example, a side surface (an example of a mounting surface) facing the side of the side wall along the vertical direction. In this case, the piping support 32 is attached with the arrow FR direction shown in the drawing pointing toward one of the upper and lower sides, and the arrow RR direction pointing toward the other of the upper and lower sides.

Further, in the present embodiment, when the engaging portions 73 and 74 are in the engaged state, the upper end portions 53H and 54H of the receiving portions 53 and 54 are arranged on the tangent line SL, but the present invention is not limited to this. For example, even if the upper end portions 53H, 54H of the receiving portions 53, 54 are arranged below the tangent line SL (i.e., on the step slab 14A side) when the engaging portions 73, 74 are engaged, good. Furthermore, in the engaged state of the engaging portions 73 and 74, the upper end portions 53H and 54H of the receiving portions 53 and 54 may be arranged slightly above the tangent line SL. Specifically, for example, the upper end portions 53H and 54H of the receiving portions 53 and 54 are arranged so as to cover the virtual circle KR at a position above the tangent line SL. Furthermore, in this configuration, the receiving parts 53 and 54 may be in contact with each other above the virtual circle KR. In addition, also in this structure, it is desirable that the upper end parts 53H and 54H are formed in the plane along the tangent line SL. In this way, in the engaged state of the engaging parts 73 and 74, the upper ends 53H and 54H of the receiving parts 53 and 54 are disposed above the tangent line SL, so that they are supported by the piping support 32. Even when an article approaches the horizontal drawing tube 22 from above, the article tends to hit the receiving parts 53 and 54 first. As a result, the article is unlikely to directly hit the horizontal drawing tube 22, and damage to the horizontal drawing tube 22 can be suppressed.

Further, in this embodiment, the engaging parts 73 and 74 extend from the receiving parts 53 and 54 toward the supporting parts 43 and 44, and have claw parts 73A and 74A, and the engaged parts 83 and 84 are Although it has the holes 83A, 84A and the edges 83C, 84C on which the claws 73A, 74A are caught, the present invention is not limited thereto. For example, the engaging parts 73 and 74 have holes and edges, and the engaged parts 83 and 84 extend from the supporting parts 43 and 44 toward the receiving parts 53 and 54, and have claws that are caught on the edges. The configuration may include a section.

Further, in the present embodiment, the restricting parts 93 and 94 are provided in the receiving parts 53 and 54, and the restricting parts 93 and 94 correspond to the supporting parts 43 and 44, but the present invention is not limited to this. For example, the limiting portions 93 and 94 may be provided on the supporting portions 43 and 44, and the limiting portions 93 and 94 may correspond to the receiving portions 53 and 54.

In addition, in the present embodiment, the receiving parts 53 and 54 had an arcuate cross section when viewed in the front-rear direction, and the inner peripheral surfaces of the two receiving parts 53 and 54 formed a circle (virtual circle KR). It is not limited to this. For example, each of the receiving portions 53 and 54 has a polygonal shape when viewed from the front and back such that the inner peripheral surfaces of the two receiving portions 53 and 54 form a polygon (for example, a quadrangle, a hexagon, an octagon). It may be formed in a cross-sectional shape constituting a part of.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and it is of course possible to implement various modifications other than the above without departing from the spirit thereof. It is.

15...Top surface (an example of a mounting surface) 22...Horizontal pipe (an example of piping) 32...Piping support 43, 44...Support part 51, 52...Support point 53, 54...Receiving part 53H, 54H...Top end part (opposite) Example of end part) 73, 74...Engaging part 73A, 74A...Claw part 83, 84...Engaged part 83A, 84A...Hole 83B, 84B...Slope 93, 94...Limiting part KR...Virtual circle SL...Tangential line

Claims (6)

a pair of mutually spaced supports attached to the mounting surface;
a receiving part that is rotatably supported by each of the supporting parts and receives the piping;
an engaging portion provided on the mounting surface side of each of the receiving portions;
an engaged part that is provided on each of the supporting parts and engages with the engaging part to fix the receiving part;
a limiting portion provided on one of the receiving portion and the supporting portion;
Equipped with
Each of the receiving parts has a distance between an opposite end of one of the receiving parts on the side opposite to the mounting surface and an opposite end of the other receiving part on the opposite side of the mounting surface. It is rotatable in a first direction so that the distance is larger than the diameter of the pipe, and the interval is smaller than the diameter of the pipe so that the engaging part engages with the engaged part. rotatable in a second direction opposite to the first direction;
The engaged portion is
a hole formed in the support part;
The engaging portion is
It extends from the receiving part toward the supporting part and has a protruding claw part on the distal end side, and after the claw part passes through the hole by rotation of the receiving part in the second direction, the claw part passes through the hole. caught on the edge of
When the receiving portion further rotates in the second direction after the claw portion passes through the hole, the limiting portion hits the other of the receiving portion and the supporting portion to limit rotation of the receiving portion.
Piping support. The receiving portion has an arcuate cross section,
When assuming a virtual circle along the inner circumferential surface of the receiving part with the engaging part engaged with the engaged part, the mounting at a position farthest from the mounting surface of the virtual circle. The opposite end of the receiving portion is arranged on a tangent along the surface or closer to the mounting surface than the tangent,
The entire receiving portion is arranged between the tangent line and the mounting surface.
The piping support according to claim 1. The support part is
having a support point located at a position away from the mounting surface, and rotatably supporting the receiving part at the support point;
The engaging portion is
The piping support according to claim 1 or 2, wherein the piping support is provided closer to the mounting surface than the support point in the receiving part . The inside of the hole is provided with an inclined surface that guides the claw portion passing through the hole toward the edge when the receiving portion is rotated in the second direction.
The piping support according to any one of claims 1 to 3 . The hole reaches an end of the support portion on the mounting surface side.
The piping support according to any one of claims 1 to 4 . Using the piping support according to any one of claims 1 to 5, a horizontal pipe as the piping is laid in a state separated from a floor surface as the mounting surface.
Piping installation method.