JP7545865B2 - Pipe Supports - Google Patents

Description

The present invention relates to a piping support.

A saddle (pipe support) for fixing a pipe, which is composed of a saddle member for holding the pipe and a base member for fixing the saddle member to a predetermined location, is disclosed (see Patent Document 1). The saddle member has a pair of pipe support parts with arc-shaped parts for holding a part of the pipe. A curved holding part having a row of sawtooth formed on the surface of the tip of one of the pipe support parts is attached to the arc-shaped part so that it can open and close. A protruding engagement part is provided on the outside of the arc-shaped part of the other pipe support part, which forms a gap to receive the tip of the curved holding part, and a row of sawtooth engaged with the sawtooth of the curved holding part is provided on the inside of the protruding engagement part.

JP 2004-44751 A

In the above-mentioned conventional example, a pair of sawtooth rows mesh with each other, allowing the pair of pipe support parts to tighten and hold the pipe. However, in the above-mentioned conventional example, the meshing of the sawtooth rows can be released by operating from the outside of the pipe support part or the base member. Therefore, if an installer's foot accidentally hits the pipe fixing saddle, for example, an external impact can cause the meshing of the sawtooth rows to be released, and the pipe can come off the pipe fixing saddle.

The present invention aims to prevent piping held by a piping support from coming off the piping support due to an external impact.

The pipe support according to the first aspect has a pair of support parts that can be attached to a target surface and are spaced apart from each other, a receiving part that is supported by each of the support parts and at least one of which is rotatably supported by the support part and that holds the pipe, and a movable part that is arranged to fit within the space between the pair of support parts and that switches between a state in which the receiving part holds the pipe and a state in which the pipe is not held.

This pipe support can hold pipes by a pair of receiving parts, each of which is supported by a support part, at least one of which is supported rotatably on the support part. The receiving parts can be switched between holding and not holding the pipe by operating the movable part. In this pipe support, the movable part is arranged to fit within the space between the pair of support parts, preventing the feet of an installer or other person from accidentally coming into contact with the movable part. In other words, external impacts are prevented from being directly input to the movable part. This prevents the pipes held by the pipe support from coming off the pipe support due to external impacts.

The second aspect is a pipe support according to the first aspect, which has a connecting portion that connects the pair of support portions to each other at a position away from the mounting surface side of the support portions, and the movable portion has an engagement portion that can engage with the connecting portion.

In this pipe support, a pair of support parts are connected to each other by a connecting part, so the rigidity of the support parts is improved compared to a structure without a connecting part. In addition, by engaging an engagement part provided on the movable part with the connecting part, the pipe is held by the receiving part and the held state is maintained.

In the third aspect, in the pipe support according to the second aspect, the connecting portion has a hole, and the engaging portion extends from the receiving portion to the connecting portion and has a protruding claw portion at the tip end, and is configured so that when the receiving portion rotates in the direction in which the pipe is held, the claw portion passes through the hole and then hooks onto the edge of the hole.

In this pipe support, the receiving part is rotated in the direction in which the pipe is to be held, and the claw part of the engagement part in the movable part is passed through a hole provided in the connecting part and hooked onto the edge of the hole to engage it, thereby holding the pipe in place with the receiving part and maintaining that held state.

In the fourth aspect, in the pipe support according to any one of the first to third aspects, one of the receiving parts is fixed to the support part, and the other of the receiving parts is supported rotatably on the support part.

In this pipe support, one of the receiving parts is fixed to the support part, and the other receiving part is rotatably supported on the support part, so the pipe can be held by rotating the other receiving part. This improves the workability of holding the pipe compared to when both receiving parts are rotated.

The present invention can prevent the pipes held by the pipe support from coming off the pipe support due to an external impact.

FIG. 1 is a side view showing a siphon drainage system according to an embodiment of the present invention. FIG. 2 is a perspective view showing the pipe support according to the first embodiment. FIG. 2 is a front view showing a pipe non-holding state in the pipe support according to the first embodiment. FIG. 2 is a front view showing a pipe holding state in the pipe support according to the first embodiment. FIG. 11 is a perspective view showing a pipe support according to a second embodiment. FIG. 11 is a front view showing a pipe support according to a second embodiment in a non-pipe-holding state. FIG. 11 is a front view showing a pipe holding state in a pipe support according to a second embodiment. FIG. 13 is a perspective view showing a pipe support according to a reference example . FIG. 11 is a front view showing a pipe non-holding state in the pipe support according to the reference example . FIG. 11 is a front view showing a pipe holding state in the pipe support according to the reference example . FIG. 13 is a perspective view showing a pipe support according to a modified example of the reference example .

The following describes an embodiment of the present invention with reference to the drawings. Components indicated with the same reference numerals in each drawing are the same or similar components. Note that duplicated descriptions and reference numerals in the embodiments described below may be omitted. In addition, all drawings used in the following description are schematic, and the dimensional relationships and ratios of each element shown in the drawings do not necessarily match the actual ones. In addition, the dimensional relationships and ratios of each element between multiple drawings do not necessarily match.

(Siphon drainage system)
The pipe supports 1, 2, and 3 according to the present embodiment are used, for example, in a siphon drainage system 10. Fig. 1 shows an outline of the overall configuration of the siphon drainage system 10 according to the present embodiment. The siphon drainage system 10 is a drainage system that efficiently discharges wastewater from a plumbing fixture by utilizing siphon force.

Specifically, as shown in FIG. 1, the siphon drainage system 10 is used, as an example, in an apartment building made up of multiple floors (only certain floors are shown in FIG. 1). The apartment building is equipped with a drainage standpipe 12 that drains wastewater downward. The drainage standpipe 12 extends in the up-down direction (vertical direction) of the apartment building and penetrates the concrete floor slab 14 of each floor of the apartment building. The siphon drainage system according to the present invention is suitable for use in apartment buildings, but can also be used in detached houses, factories, and other buildings other than apartment buildings.

In each unit on each floor of the apartment building, a plumbing fixture 16 is installed on the flooring 17 in the living room 19 (to the right of the wall DL shown by the two-dot chain line in Figure 1), and a drain trap 18 is connected to this plumbing fixture 16 downstream in the drainage direction.

As shown in FIG. 1, the area below the floor slab 14 under the living room 19 where the plumbing fixtures 16 are located is a step-down concave step slab 14A 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 flooring 17 is approximately 130 mm, the height from the top surface 15 of the step slab 14A to the top surface of the flooring 17 is approximately 240 mm, and the thickness of the flooring 17 is approximately 30 mm.

As shown in FIG. 1, an L-shaped piping member 20 bent into an L shape is disposed downstream of the drain trap 18 in the drain direction. The L-shaped piping member 20 includes a vertical section 20A that is connected to the drain trap 18 and extends vertically, a horizontal section 20B that is disposed horizontally on the step slab 14A and extends horizontally, and a curved section 20C that connects the vertical section 20A and the horizontal section 20B. As the L-shaped piping member 20, a commercially available product (e.g., also called an elbow) made of a synthetic resin such as rigid polyvinyl chloride resin can be used.

A horizontal pipe 22, which constitutes part of the siphon drain pipe 21, is disposed downstream in the drainage direction of the L-shaped piping member 20. For the horizontal pipe 22 in this embodiment, a flexible synthetic resin pipe with a nominal diameter of 20 as specified in JIS K6778 and JIS K6792 is used. As the synthetic resin pipe used for the horizontal pipe 22, for example, a flexible polybutene pipe can be used, but other types of synthetic resin pipes can also be used. In addition, the horizontal pipe 22 is not limited to one with a nominal diameter of 20, and one with a nominal diameter of 25 can also be used.

A meter box 24 is provided downstream of the horizontal pipe 22 in the drainage direction outside the living space 19. In this embodiment, the floor surface 14B of the meter box 24 is horizontally connected to the step slab 14A below the living space 19.

Inside this meter box 24, an L-shaped bent drop pipe 26 is placed, which constitutes part of the siphon drain pipe 21. The drop pipe 26 is composed of a horizontal section 26A that is placed on the step slab 14A and extends horizontally, a vertical section 26B that extends vertically and penetrates the step slab 14A, and a curved section 26C that connects the horizontal section 26A and the vertical section 26B. The drop pipe 26 can be, for example, a commercially available product (also called an elbow) made of a synthetic resin such as rigid polyvinyl chloride resin.

A vertical pipe member 34 is disposed downstream of the drop pipe 26 in the drainage direction. The vertical pipe member 34 constitutes part of the siphon drain pipe 21, extends in the vertical direction, and is connected to the vertical section 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 junction joint 38. The junction joint 38 is attached to the middle part of the drainage standpipe 12. The vertical pipe member 34 in this embodiment may be made of the same material and have the same nominal diameter as the horizontal pull pipe 22.

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

The horizontal pull pipe 22 is supported horizontally at multiple points in the longitudinal middle portion by multiple piping supports 1 attached to the upper surface 15 of the step slab 14A. Instead of the piping support 1, piping support 2 or piping support 3 may be used. As a result, the horizontal pull pipe 22 is positioned above and spaced apart from the step slab 14A. In this way, by positioning the horizontal pull pipe 22 above and spaced apart from the step slab 14A, a space is formed between the horizontal pull pipe 22 and the step slab 14A. Pipes 29, such as gas pipes and water supply pipes, are placed in this space.

(Pipe Support)
[First embodiment]
1 to 4, a pipe support 1 according to this embodiment is a support for supporting a horizontal pipe 22 (see FIG. 1) as an example of a pipe. As an example, the pipe support 1 is integrally formed from a resin material. The pipe support 1 has a pair of support portions 40, 42, receiving portions 44, 46, and a movable portion 48.

The pair of support parts 40, 42 can be attached to the upper surface 15 (see FIG. 1) of the step slab 14A as an example of the surface to be attached, and are spaced apart from each other in the radial direction of the horizontal pipe 22 (FIGS. 2 and 3), for example. One support part 40 has mounting parts 40A and 40B. The mounting part 40A extends from the lower end of the leg part 40B to the side opposite the leg part 42. The mounting part 40A has a mounting hole 40C through which a fastening member such as a screw (not shown) is passed, penetrating in the vertical direction. The other support part 42 has a mounting part 42A and a leg part 42B. The mounting part 42A extends from the lower end of the leg part 42B to the side opposite the leg part 40B. The mounting part 40A has a mounting hole 40C through which a fastening member such as a screw (not shown) is passed, penetrating in the vertical direction. The piping support 1 is attached to the upper surface 15 of the step slab 14A by fastening members (not shown) passed through the mounting holes 40C and 42C to the step slab 14A.

The thickness of the legs 40B, 42B is configured to gradually decrease in the direction away from the mounting parts 40A, 42A, i.e., in the upward direction. In addition, the legs 40B, 42B may have a hollow structure with an opening at the bottom end so that the thickness of the legs 40B, 42B is uniform.

A connecting portion 50 that connects the pair of supports 40, 42 to each other is provided at a position away from the upper surface 15 (Figure 1) side of the step slab 14A of the supports 40, 42. As shown in Figures 3 and 4, the connecting portion 50 extends, for example, parallel to the mounting portions 40A, 42A. As a result, the supports 40, 42 and the connecting portion 50 form a roughly H-shape when viewed from the front. The connecting portion 50 has a hole 50A.

The edge 50B of the hole 50A is the engaged portion that engages with the engaging portion 58 of the movable part 48, which will be described later.

The receiving parts 44, 46 are supported by the respective supporting parts 40, 42, and at least one of them is rotatably supported by the supporting parts 40, 42, and are portions for holding the horizontal pipe 22, which is an example of a pipe. The receiving parts 44, 46 are each configured, for example, as a cylindrical inner surface formed with an arc-shaped cross section. The receiving parts 44, 46 can also be referred to as "saddle parts."

The receiving portion 44 is formed in a substantially semicircular shape, and the receiving portion 46 is formed in an arc whose arc length is shorter than that of a semicircle. In this embodiment, the receiving portion 44, which is one of the pair of receiving portions, is rotatably supported by the support portion 40, and the receiving portion 46, which is the other of the pair of receiving portions, is fixed to the support portion 42. The receiving portion 46 is integrally formed above the leg portion 42B of the support portion 42.

The receiving part 44 is connected to the upper end of the leg part 40B by a fulcrum 54. This fulcrum 54 is, for example, an integral hinge. As shown in FIG. 3, the receiving part 44 is supported at the fulcrum 54 so as to be rotatable in the directions of the arrows O and C. When the piping support 1 supports the horizontal pipe 22, the receiving part 44 is rotated in the direction of the arrow O to allow the horizontal pipe 22 to be received between the receiving parts 44 and 46, and when the receiving part 44 is rotated in the direction of the arrow C, the horizontal pipe 22 can be held between the receiving parts 44 and 46.

The movable part 48 is provided to fit within the space 56, 57 between the pair of support parts 40, 42, and is a part for switching between the holding state and non-holding state of the horizontal pipe 22 by the receiving parts 44, 46. The space 56 is a space sandwiched between the pair of support parts 40, 42 above the connecting part 50, and the space 57 is a space sandwiched between the pair of support parts 40, 42 below the connecting part 50. The spaces 56, 57 are spaces formed between a pair of flat plates (not shown) straddling the pair of support parts 40, 42 and the pair of support parts 40, 42 when both sides of the pair of support parts 40, 42 in the width direction W (Figure 2) are blocked by the flat plates. Since the movable part 48 is provided to fit within the space 56, 57, it does not protrude outside the pair of support parts 40, 42 when viewed from the direction shown in Figure 1.

The movable part 48 has an engagement part 58 that can engage with the connecting part 50, for example. This engagement part 58 extends from the receiving parts 44, 46 to the connecting part 50 and has a convex claw part 58A at the tip side. The engagement part 58 is configured so that the claw part 58A passes through the hole 50A when the receiving part 44 rotates in the direction in which the horizontal pulling tube 22 is held, i.e., in the direction of arrow C, and then the engagement part 58 hooks onto the edge part 50B of the hole 50A.

(Action)
This embodiment is configured as described above, and its operation will be described below. In Figures 3 and 4, the pipe support 1 according to this embodiment is fixed to the upper surface 15 (see Figure 1) of the step slab 14A by the mounting parts 40A, 42A of the support parts 40, 42. This pipe support 1 can hold the horizontal pipe 22 by the receiving parts 44, 46 that are fixed or rotatably supported by the support parts 40, 42. The pair of support parts 40, 42 are connected to each other by the connecting part 50, and the rigidity of the support parts 40, 42 is improved compared to a structure without the connecting part 50.

The holding state and non-holding state of the horizontal pipe 22 by the receiving parts 44 and 46 are switched by operating the movable part 48.

Specifically, in FIG. 3, the receiving part 44 is rotated in the opening direction (arrow O direction), the horizontal pulling tube 22 is lowered between the receiving parts 44, 46, and the receiving part 44 is rotated in the direction in which the horizontal pulling tube 22 is held (arrow C direction). Then, as shown in FIG. 4, the claw part 58A of the engagement part 58 in the movable part 48 is passed through the hole 50A provided in the connecting part 50 and hooked onto and engaged with the edge part 50B of the hole 50A, whereby the horizontal pulling tube 22 is held by the receiving parts 44, 46 and the held state is maintained.

In this holding state, the movable part 48 is arranged to fit within the spaces 56, 57 between the pair of support parts 40, 42, preventing the foot of the installer or the like from accidentally touching the movable part 48. In other words, because the movable part 48 is protected by the support parts 40, 42, external impacts are prevented from being directly input to the movable part 48. Therefore, the horizontal pipe 22 held by the piping support 1 can be prevented from coming off the piping support 1 due to an external impact.

In addition, one of the pair of receiving parts, receiving part 46, is fixed to support part 42, and the other of the pair of receiving parts, receiving part 44, is rotatably supported by support part 40, so that the horizontal pulling pipe 22 can be held by rotating receiving part 44. Therefore, the workability of holding the horizontal pulling pipe 22 is improved compared to when both receiving parts 44 and 46 are rotated.

Then, by operating the movable part 48 to disengage the claw part 58A of the engagement part 58 from the edge part 50B of the hole 50A, and rotating the receiving part 44 in the direction of the arrow O, the horizontal pulling tube 22 can be released from its hold.

[Second embodiment]
5 to 7, in the pipe support 2 of this embodiment, for example, the thickness of the legs 40B, 42B is constant in the length direction of the legs 40B, 42B, in other words, in the height direction of the pipe support 2.

Furthermore, a finger hook 60 is integrally provided on the outer periphery of the receiving part 44, opposite the movable part 48 with respect to the fulcrum 54. This finger hook 60 is located, for example, above the fulcrum 54 when the piping support 2 is in its natural state, and it is possible to hook a finger on it when rotating the receiving part 44 in the direction of arrow O or arrow C.

In this embodiment, by applying force to the finger hook portion 60, it is possible to easily engage and release the claw portion 58A of the engagement portion 58 with the hole 50A of the connecting portion 50, i.e., to switch between a holding state and a non-holding state of the horizontal pulling tube 22 by the receiving portions 44, 46, compared to a configuration without the finger hook portion 60.

Even if the worker's foot touches the finger hook 60, the movable part 48 is contained within the spaces 56, 57 between the pair of supports 40, 42, so that external impact is prevented from being directly input to the movable part 48. Therefore, the horizontal pipe 22 held by the piping support 2 can be prevented from coming off the piping support 2 due to an external impact.

Other parts are similar to those in the first embodiment, so the same parts are given the same reference numerals in the drawings and the explanation is omitted.

[ Reference Example ]
In Fig. 9, the pipe support 3 according to the reference example is configured symmetrically when viewed from the axial direction of the horizontal pulling pipe 22. In Figs. 8 to 10, in the pipe support 3, the lower ends of the legs 40B, 42B of the support parts 40, 42 are connected to each other by a connecting part 62. The mounting parts 40A, 42A are located on an extension of the connecting part 62. The leg part 40B is provided with an engaged part 40D that protrudes toward the leg part 42B. The leg part 42B is provided with an engaged part 42D that protrudes toward the leg part 40B. The engaged parts 40D, 42D protrude into a space 66 between the pair of support parts 40, 42. The space 66 is a space sandwiched between the pair of support parts 40, 42. The engaged part 40D is a portion that engages with the engaging part 58 of the movable part 48. The engaged part 42D is engaged with an engaging part 78 of the movable part 68, which will be described later.

The receiving parts 44 and 46 are rotatably supported by the respective support parts 40 and 42. The receiving part 44 is connected to the upper end of the leg part 40B by a fulcrum 54. The receiving part 46 is connected to the upper end of the leg part 42B by a fulcrum 64. The fulcrums 54 and 56 are, for example, integral hinges.

The movable parts 48, 68 are arranged to fit within the space 66 between the pair of support parts 40, 42, and are used to switch between a holding state and a non-holding state of the horizontal pulling tube 22 by the receiving parts 44, 46. As shown in FIG. 9, the movable part 48 extends downward from the lower end of the receiving part 44, for example. As in the first embodiment, the movable part 48 has an engaging part 58, and the engaging part 58 has a claw part 58A. The claw part 58A is configured to be able to engage with the engaged part 40D by rotating the receiving part 44 in the direction in which the horizontal pulling tube 22 is held, i.e., in the direction of the arrow C (FIG. 10).

Moveable portion 68 also extends downward from the lower end of receiving portion 46, for example. As an example, movable portion 68 has an engaging portion 78 that can engage with engaged portion 42D of support portion 42. This engaging portion 78 has a convex claw portion 78A at the tip side, and is configured so that claw portion 78A engages with engaged portion 42D when receiving portion 46 rotates in the direction in which horizontal pulling tube 22 is held, i.e., in the direction of arrow C (Figure 10).

9 and 10, in this embodiment , the receiving parts 44, 46 are rotated in the direction of the arrow O to open the receiving parts 44, 46, so that the horizontal pulling tube 22 can be received. When the horizontal pulling tube 22 is inserted between the receiving parts 44, 46 and pushed downward, the receiving parts 44, 46 are pushed by the horizontal pulling tube 22 and rotate in the direction of the arrow C. Then, as shown in FIG. 10, the claw part 58A of the engaging part 58 engages with the engaged part 40D, and the claw part 78A of the engaging part 78 engages with the engaged part 42D, so that the horizontal pulling tube 22 is held by the receiving parts 44, 46, and the held state is maintained.

When the engaging portion 58 abuts against the engaged portion 40D and engages with it, the leg 40B is pressed outward. Similarly, when the engaging portion 78 abuts against the engaged portion 42D and engages with it, the leg 42B is pressed outward. In other words, the legs 40B, 42B are pressed in a direction away from each other. However, because the lower ends of the legs 40B, 42B are connected to the connecting portion 62, the gap between the legs 40B, 42B is prevented from widening. As a result, the engaged portions 40D, 42D do not escape outward, so that the engaging portions 58, 78 can engage with the engaged portions 40D, 42D when the horizontal pulling pipe 22 is held by the receiving portions 44, 46.

In this holding state, the movable parts 48, 68 are arranged to fit within the space 66 between the pair of support parts 40, 42, preventing the feet of the installer or the like from accidentally coming into contact with the movable parts 48, 68. In other words, because the movable parts 48, 68 are protected by the support parts 40, 42, external impacts are prevented from being directly input to the movable parts 48, 68. Therefore, the horizontal pipe 22 held by the piping support 3 can be prevented from coming off the piping support 3 due to external impacts.

Then, the movable parts 48, 68 can be pressed in the direction of arrow A with, for example, a finger to disengage the claw part 58A of the engaging part 58 from the engaged part 40D, and the claw part 78A of the engaging part 78 from the engaged part 42D, and the receiving parts 44, 46 can be rotated in the direction of arrow O to release the holding of the horizontal pulling tube 22. In this way, the holding of the horizontal pulling tube 22 can be released with the finger without using a tool.

Other parts are similar to those in the first embodiment, so the same parts are given the same reference numerals in the drawings and the explanation is omitted.

[Other embodiments]
An example of an embodiment of the present invention has been described above, but the embodiment of the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the spirit and scope of the present invention.

For example, in the reference example shown in Fig. 8, a mounting hole 40C is formed in the mounting portion 40A of the support portion 40, and a mounting hole 42C is formed in the mounting portion 42A of the support portion 42, but the positions of the mounting holes are not limited to this. For example, as in the modified example shown in Fig. 11, a mounting hole 62A may be formed in the connecting portion 62. In this case, the mounting portions 40A, 42A (Fig. 8) may be omitted.

1...pipe support, 2...pipe support, 3...pipe support, 15...upper surface (surface to be attached), 22...horizontal pipe, 40...support part, 42...support part, 44...receiving part, 46...receiving part, 48...movable part, 50...connecting part, 50A...hole, 50B...edge, 54...fulcrum, 56...space, 57...space, 58...engaging part, 58A...claw part, 64...fulcrum, 66...space, 68...movable part, 78...engaging part, 78A...claw part

Claims (2)

A pair of support parts spaced apart from each other and attachable to a mounting surface;
a pair of receiving parts supported by the respective support parts, at least one of which is rotatably supported by the support part, for holding a pipe;
a movable portion provided to be accommodated in a space between the pair of support portions and configured to switch between a holding state and an unholding state of the piping by the receiving portion;
a connecting portion for connecting the pair of support portions to each other at a position away from the mounting surface of the support portion,
the movable portion has an engagement portion that is engageable with the connecting portion ,
The connecting portion has a hole,
The engaging portion extends from the receiving portion toward the connecting portion and has a convex-shaped claw portion at the tip side, and is configured so that when the receiving portion is rotated in the direction in which the piping is held, the claw portion passes through the hole and then hooks onto the edge of the hole . The pipe support according to claim 1 , wherein one of the receiving portions is fixed to the support portion, and the other of the receiving portions is rotatably supported by the support portion.