Elongated body protection tool

Abstract

To provide an elongated body protection tool which can be easily installed.SOLUTION: A protection tool 10 protects a pipe installed at a step part 90 in which a first surface 91 and a second surface 92 are connected through a step surface 93 on a floor slab of a building from an external corner 95 which is a portion where the step surface 93 and the second surface 92 intersect. A support part 20 disposed at the step surface 93 side of the external corner 95 has a support surface 21 which may support the pipe and inclines toward the first surface 91 in a direction away from the step surface 93 along the first surface 91. An insertion part 40 extending from the support part 20 along the second surface 92 has a flat plate shape which may be inserted between the pipe and the second surface 92. A leading edge 42 of the insertion part 40 is formed thinner than the base end side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a protector for an elongated object that protects an elongated object placed on a stepped portion. [Background technology]

[0002] A support (protective tool) that can support a pipe and protect it from bulging out of the step when laying the pipe on a step formed in a slab or the like in a building is disclosed in, for example, Patent Document 1. The support of Patent Document 1 has an elongated shape as a whole and is formed of multiple plate parts connected to each other. The plate part located on one end side of the support is fixed to the upper step side surface of the step part by nails, and the plate part located on the other end side of the support is fixed to the lower step side surface of the step part by nails, and multiple plate parts are inclined between the fixed both ends. The pipe is placed on the protective tool attached in this way and fixed. This protects the pipe from bulging out and makes it less likely to buckle even if it is stepped on by a worker or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-299714 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is a demand for making it easier to install protective equipment for protecting long objects such as pipes installed over stepped areas. An object of the present invention is to provide an elongated body protector that can be easily installed. [Means for solving the problem]

[0005] A protective device for elongated bodies that solves the above-mentioned problems is a protective device for elongated bodies that protects a elongated body laid in a step portion where a first surface and a second surface are connected via a step surface from a protrusion which is the portion where the step surface and the second surface intersect, and is equipped with a support part that is arranged on the step surface side of the protrusion, capable of supporting the elongated body and having a support surface that inclines toward the first surface the further it moves away from the step surface along the first surface, and a flat insertion part that extends from the support part along the second surface and can be inserted between the elongated body and the second surface, and the tip edge of the insertion part is thinner than the base end side.

[0006] In the above-mentioned protective equipment for elongated objects, the tip edge of the insertion portion is thinner at the center in the width direction of the insertion portion than at both sides.

[0007] In the above-mentioned elongated body protective equipment, the insertion portion has a predetermined region from the base end side to the tip edge that is a thin-walled region, and the thin-walled region becomes wider from the base end side toward the tip edge. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view showing the front, top and left side of the protective equipment. [Diagram 2] FIG. 2 is a perspective view showing the back, bottom, and right side of the protective equipment. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] Rear view showing the protective equipment. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. 2 is a bottom view showing two protective devices connected together. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [One embodiment] Hereinafter, one embodiment embodied in a protector for protecting a pipe will be described. As shown in FIG. 1 and FIG. 10, a step portion 90 formed in a floor slab of a building is configured by connecting a first surface 91 and a second surface 92 via a step surface 93. The floor slab is formed of, for example, concrete, and in that case, the first surface 91, the second surface 92, and the step surface 93 are often in a state where the concrete surfaces are left exposed. The first surface 91 and the second surface 92 each have a planar shape extending horizontally, the first surface 91 being the surface on the lower step side of the step portion 90, and the second surface 92 being the surface on the upper step side of the step portion 90. The step surface 93 has a planar shape extending vertically between the first surface 91 and the second surface 92. The step portion 90 has an inlet 94, which is a portion where the step surface 93 and the first surface 91 intersect, and an outlet 95, which is a portion where the step surface 93 and the second surface intersect.

[0010] It should be noted that step surface 93 does not necessarily have to be a solid object such as a concrete surface. In the case where there is a space between first surface 91 and second surface 92 in step portion 90, a virtual plane extending vertically from the edge of first surface 91 to second surface 92 becomes step surface 93.

[0011] The pipe 96, which serves as a long body laid in the step portion 90, is, for example, a water supply pipe. The pipe 96 is a composite pipe in which a water supply pipe body made of cross-linked polyethylene is covered with a protective corrugated pipe having an uneven surface.

[0012] The protective equipment 10 (long-body protective equipment) is for protecting a pipe 96 from a protruding portion 95 of a step portion 90. As shown in Figs. 1 to 4, the protective equipment 10 includes a support portion 20 disposed on the step surface 93 side of the protruding portion 95, and an insert portion 40 extending from the support portion 20 along a second surface 92 of the step portion 90. The protective equipment 10 is integrally molded by injection molding or the like from a resin such as polyethylene. As shown in Fig. 1, the direction perpendicular to the step surface 93 of the floor slab is defined as the length direction L of the protective equipment 10, the direction in which the protruding portion 95 extends is defined as the width direction W of the protective equipment 10, and the direction perpendicular to the first surface 91 is defined as the height direction H of the protective equipment 10.

[0013] First, a description will be given of the support part 20. Note that the right end side in FIG. As shown in Figs. 1 to 4, the support portion 20 has a support surface 21 capable of supporting a pipe 96. The support surface 21 is inclined toward the first surface 91 as it moves away from the step surface 93 of the floor slab along the first surface 91. In detail, the support surface 21 has a convex curved surface shape that is convex toward the opposite side to the first surface 91 and the step surface 93. A tip surface 22 extends from the tip of the support surface 21 toward the first surface 91. The tip surface 22 extends along the step surface 93.

[0014] The support part 20 has an abutment part 23 formed at the base end and capable of abutting against the step surface 93. The abutment part 23 is in the shape of a flat plate extending along the step surface 93. As shown in Figs. 2 and 6, a surface 23a of the abutment part 23 on the step surface 93 side is provided with a plurality of grooves 23b extending along the height direction H. The grooves 23b are for increasing the adhesive application area on the protector 10 side and increasing the adhesive strength when the protector 10 is bonded to the projection 95 (step surface 93) using an adhesive. The grooves 23b extend from the end of the abutment part 23 on the support surface 21 side to the end on the first surface 91 side.

[0015] The support part 20 is provided with a first side wall part 24 constituting the side wall on the left side as viewed from the front, and a second side wall part 25 constituting the side wall on the right side as viewed from the front. The first side wall part 24 and the second side wall part 25 are flat plate-shaped extending in a direction perpendicular to the first surface 91 and the step surface 93 so as to cover the edges of the support surface 21, the tip surface 22, and the side surface of the abutment part 23, respectively.

[0016] The support part 20 is formed with a band passage 26 for passing a cable tie 97 (see FIG. 10) for fixing the protector 10 and the pipe 96 to each other. The band passage 26 is open to both sides in the width direction W of the support part 20 and to the first surface 91 side.

[0017] The first side wall 24 is provided with a first opening 27 which forms an opening on the left side of the band passage 26 when viewed from the front. The second side wall 25 is provided with a second opening 28 which forms an opening on the right side of the band passage 26 when viewed from the front. In other words, the band passage 26 extends along the width direction W of the support part 20 from the first opening 27 to the second opening 28.

[0018] An edge 27a of the first opening 27 on the support surface 21 side and an edge 28a of the second opening 28 on the support surface 21 side are inclined toward the first surface 91 as they move away from the step surface 93 along the first surface 91. The angles of the edges 27a, 28a with respect to the first surface 91 are set to a value close to the angle with respect to the first surface 91 of the assumed pipe 96. For example, since the height of the step surface 93 assumed in a general case is 100 mm to 200 mm and the angle with respect to the first surface 91 of the pipe 96 in that case is 10° to 20°, the angle of the edges 27a, 28a with respect to the first surface 91 may be set to 10° to 20°, and may be preferably set to 15°.

[0019] In the first opening 27 of the first side wall portion 24, the portion opposite the support surface 21 side is a wide opening 27b that has a wider opening width than the portion on the support surface 21 side.

[0020] 2 and 4 to 8, the second side wall portion 25 is provided with an engagement portion 29 adjacent to the second opening 28. In detail, the engagement portion 29 includes a first engagement piece 30 provided on the tip surface 22 side of the second opening 28, and a second engagement piece 31 provided on the abutment portion 23 side of the second opening 28. The first engagement piece 30 is formed with a protrusion 30a protruding toward the tip surface 22 side. The second engagement piece 31 is formed with a protrusion 31a protruding toward the abutment portion 23 side. The wide opening 27b and the engagement portion 29 are used when connecting multiple protective devices 10 to each other.

[0021] 2 and 8, the support portion 20 has a first rib 32, a second rib 33, and a third rib 34 standing on an inner portion surrounded by the support surface 21, the tip surface 22, the abutment portion 23, the first side wall portion 24, and the second side wall portion 25. The first rib 32, the second rib 33, and the third rib 34 are provided to increase the strength of the support portion 20. The first rib 32 and the second rib 33 extend along the first side wall portion 24 and the second side wall portion 25. The third rib 34 extends along the abutment portion 23. In detail, the third rib 34 is parallel to the band passage 26 from the first opening 27 to the second opening 28.

[0022] Next, a description will be given of the insertion portion 40. Note that the left end side in FIG. 1 to 4, the insertion portion 40 is formed in a rectangular flat plate shape that can be inserted between the pipe 96 and the second surface 92 of the floor slab. The angle between the insertion portion 40 and the abutment portion 23 is a right angle.

[0023] A surface 40a of the insertion portion 40 opposite to the second surface 92 of the floor slab smoothly continues with the support surface 21 of the support portion 20. A pair of corners 41 on the tip side of the insertion portion 40 are rounded into an arc shape.

[0024] The insertion portion 40 has a predetermined region of the surface 40a from the base end side to the tip edge 42 formed into a concave curved surface, so that the predetermined region from the base end side to the tip edge 42 is a thin-walled region 43. The thin-walled region 43 becomes wider from the base end side of the insertion portion 40 toward the tip edge 42. The thin-walled region 43 becomes thinner from the base end side toward the tip side of the insertion portion 40, and also becomes thinner from both sides in the width direction W toward the center.

[0025] Due to the above-described thin region 43, the tip edge 42 is thinner than the base end side. Also, the tip edge 42 is thinner at the center in the width direction W of the insertion portion 40 than at both sides.

[0026] The surface 40b of the insertion portion 40 on the second surface 92 side is flat, and as shown in Figs. 2 and 8, a plurality of grooves 40c extending along the length direction L are engraved on the surface 40b. The grooves 40c, like the grooves 23b on the surface 23a of the abutting portion 23, are intended to increase the adhesive application area on the protective device 10 side and increase the adhesive strength when the protective device 10 is attached to the projection 95 (second surface 92) using an adhesive. The grooves 40c are continuous with the corresponding grooves 23b of the abutting portion 23 on the base end side of the insertion portion 40. The grooves 40c terminate on the tip side of the insertion portion 40, closer to the base end side than the arc-shaped corner 41.

[0027] Next, a construction procedure for installing the protector 10 in a state where the pipe 96 is laid on the stepped portion 90 will be described with reference to Figs. 10, the pipe 96 is laid across the step surface 93 on the first surface 91 and the second surface 92. The pipe 96 is fixed to each of the first surface 91 and the second surface 92 of the floor slab by fixing means such as saddles 98 at a position a predetermined distance away from the step portion 90.

[0028] When installing the protective equipment 10 from this state, first, as shown in FIG. 9, adhesive is applied to the surface 23a of the abutment portion 23 and the surface 40b of the insertion portion 40 of the protective equipment 10. After that, the protective equipment 10 is positioned between the pipe 96 and the first surface 91 of the floor slab. The protective equipment 10 is aligned with the pipe 96, and the leading edge 42 of the insertion portion 40 is inserted between the pipe 96 and the second surface 92 of the floor slab. At this time, the center of the leading edge 42 is aligned with the center of the pipe 96. While aligning the thin-walled region 43 of the insertion portion 40 with the pipe 96, the insertion portion 40 is inserted until the abutment portion 23 abuts against the step surface 93 so that the entire insertion portion 40 is sandwiched between the pipe 96 and the second surface 92 of the floor slab.

[0029] 10, the cable tie 97 is passed through the band passage 26, and the protector 10 and the pipe 96 are fixed to each other by the cable tie 97. At this time, the position of the band passage 26 can be easily grasped by visually checking the engagement portion 29 protruding laterally from the second side wall portion 25 of the protector 10.

[0030] Because the pipe 96 has a certain degree of rigidity, it does not conform completely to the support surface 21, and a space S exists between the pipe 96 and the support surface 21 on the tip side of the support surface 21.

[0031] In this embodiment, the protective equipment 10 is fixed to the protruding portion 95 of the step portion 90 using an adhesive. Alternatively, however, the protective equipment 10 may not be fixed to the protruding portion 95 without using an adhesive.

[0032] Next, the operation of the protective equipment 10 of this embodiment will be described. A sudden change in the flow rate of water in the pipe 96 may cause water hammer, which may cause the pipe 96 to move. In this case, the resin pipe 96 may rub against the concrete projection 95, which may damage the pipe 96. However, in this embodiment, the protective equipment 10 is disposed between the pipe 96 and the projection 95, and the pipe 96 is fixed to the protective equipment 10. Therefore, even if the pipe 96 moves, it will not come into direct contact with the projection 95.

[0033] Furthermore, after the pipe 96 is laid in the step portion 90, the pipe 96 may be stepped on by a worker or the like at a position near the step portion 90, closer to the first surface 91 than the step surface 93. However, in this embodiment, the pipe 96 is supported by the inclined support surface 21, so that stress is not concentrated in one place and the pipe is less likely to buckle.

[0034] In this embodiment, the protector 10 is fixed to the protruding portion 95 using an adhesive, so that the protector 10 does not tilt. Unlike this embodiment, if the protector 10 is not fixed to the protruding portion 95 without using an adhesive, when the pipe 96 is stepped on at the above-mentioned position, the entire protector 10 tilts so that the tip surface 22 of the support portion 20 approaches the first surface 91 and the tip edge 42 of the insertion portion 40 moves away from the second surface 92. Here, the abutting portion 23 (specifically, the edge of the abutting portion 23 on the first surface 91 side) abuts against the step surface 93 to support the protector 10 and prevent the protector 10 from tilting significantly.

[0035] Next, a case where a plurality of protective devices 10 are connected to each other will be described. In cases where the pipe 96 is disposed at an angle to the outlet 95, or where multiple pipes 96 are disposed adjacent to each other, a wider protective gear 10 may be required. In such cases, multiple protective gears 10 can be connected together for use.

[0036] In order to connect a plurality of protectors 10 to each other, as shown in FIG. 11, one protector 10A and the other protector 10B are slid relative to each other in the height direction H, so that the engagement portion 29 of the protector 10A is inserted into the wide opening 27b of the first opening 27 of the protector 10B. Then, the engagement portion 29 engages with the wide opening 27b, and the one protector 10A and the other protector 10B are connected in the width direction W. At this time, the band passage 26 of the one protector 10A and the band passage 26 of the other protector 10B are connected to form one passage. When two pipes 96 are arranged in the two connected protectors 10A and 10B, the two pipes 96 are fixed together by one cable tie 97.

[0037] Next, the effects of the protective equipment 10 of this embodiment will be described. (1) The tip edge 42 of the insertion portion 40 is thinner than the base end side. This makes it easier to insert the insertion portion 40 between the pipe 96 and the second surface 92, and makes it easier to install the protector 10.

[0038] (2) The center in the width direction W of the tip edge 42 of the insertion portion 40 is thinner than both sides. Therefore, it is easy to align the center of the width direction W of the insertion portion 40 with the center of the pipe 96, and it is easy to position the protector 10 in an appropriate position relative to the pipe 96.

[0039] (3) The thin-walled region 43 of the insertion portion 40 becomes wider from the base end side toward the tip edge 42. This makes it easier to start inserting the insertion portion 40, and also makes it easier to align the center of the width direction W of the insertion portion 40 with the center of the pipe 96 as the insertion portion 40 is inserted deeper.

[0040] (4) The groove 40c of the insertion portion 40 terminates on the base end side of the arc-shaped corner 41 at the tip side of the insertion portion 40. In other words, the groove 40c does not extend to the tip of the insertion portion 40 where the thin-walled region 43 is largely thin. Therefore, the groove 40c can improve the adhesive strength while maintaining the strength of the tip side region of the insertion portion 40.

[0041] (5) Support surface 21 of support portion 20 is inclined toward first surface 91 the further away from step surface 93 along first surface 91. When pipe 96 is stepped on, pipe 96 deforms along support surface 21 inclined as described above, and stress is not concentrated in one place, making it possible to suppress buckling of pipe 96.

[0042] (6) The support surface 21 of the support portion 20 has a convex curved shape. When the pipe 96 is stepped on, the pipe 96 deforms along the convex curved surface of the support surface 21, so that buckling of the pipe 96 can be further suppressed.

[0043] (7) The support portion 20 has an abutment portion 23 that can abut against the step surface 93. When the pipe 96 is stepped on, the abutment portion 23 (specifically, the edge of the abutment portion 23 on the first surface 91 side) abuts against the step surface 93 to support the protector 10 and prevent the protector 10 from being significantly tilted. Therefore, the pipe 96 can be prevented from being excessively deformed.

[0044] (8) In the support portion 20, the edge 27a of the first opening 27 on the support surface 21 side and the edge 28a of the second opening 28 on the support surface 21 side are inclined toward the first surface 91 as they move away from the step surface 93 along the first surface 91. The pipe 96 is also inclined toward the first surface 91 as they move away from the step surface 93 along the first surface 91. That is, the edges 27a, 28a extend in the same direction as the extension direction of the pipe 96. When the pipe 96 is fixed to the protector 10 by the cable tie 97, the width direction of the cable tie 97 tends to be close to the inclination direction of the edges 27a, 28a, and the fixation of the pipe 96 and the protector 10 by the cable tie 97 can be stabilized.

[0045] (9) The third rib 34 is parallel to the band passage 26 from the first opening 27 to the second opening 28. When the cable tie 97 is inserted into the band passage 26 from the side of the support part 20, the third rib 34 can prevent the tip of the cable tie 97 from entering the inner wall surface of the support part 20 and getting caught on the inner wall surface.

[0046] (10) The support portion 20 is formed with an engagement portion 29 having a shape that can be inserted into the band passage 26 of another adjacent protector 10 and engage with the support portion 20. The band passage 26 for passing the cable tie 97 also serves the function of connecting multiple protectors 10 to each other, and it is possible to connect the protectors 10 to each other with a relatively simple configuration without providing a separate structure for engaging with the engagement portion 29.

[0047] [Other embodiments] The above embodiment can be modified, for example, as follows: The above embodiment and the following modified examples can be combined with each other to the extent that no technical contradiction occurs.

[0048] The shape of the insertion portion 40 is not limited to a rectangular shape, but may be, for example, a semicircular or triangular shape. Only the tip edge 42 of the insertion portion 40 may be made thin, and the remaining portions may be made to have a constant thickness.

[0049] The insertion portion 40 is not limited to a flat plate shape, and may be, for example, a semi-cylindrical shape. The support surface 21 is not limited to a convex curved surface, and may be, for example, a planar inclined surface. In this case, the inclined surface may be formed by a single plane, or may be formed by a plurality of connected planes.

[0050] The contact portion 23 is not limited to a flat plate shape, and may be, for example, a curved plate shape. In the protector 10, the fixing location of the pipe 96 does not have to be the support part 20. For example, the insertion part 40 and the pipe 96 may be fixed to each other. In that case, the insertion part 40 may have a recess in the surface 40b on the second surface 92 side for passing the cable tie 97 therethrough.

[0051] The pipe 96 may be fixed at both the support portion 20 and the insertion portion 40 . The means for fixing the protective equipment 10 and the pipe 96 does not have to be the cable tie 97. For example, in order to fix the protective equipment 10 and the pipe 96, a structure such as a saddle 98 may be provided on the support part 20, or a dedicated attachment separate from the protective equipment 10 may be provided.

[0052] Before laying the pipe 96, the protector 10 may be fixed to the protruding portion 95 of the step portion 90 using an adhesive. The means for fixing the protector 10 to the projection 95 may be other than adhesive. For example, the protector 10 may be fixed to the projection 95 by a screw.

[0053] The step portion 90 in which the protective equipment 10 is used is not limited to a step portion in which the first surface 91 and the second surface 92 extend in the horizontal direction. For example, the protective equipment 10 may be used in a state in which the step portion 90 is provided on the wall of a building and the first surface 91 and the second surface 92 extend in the vertical direction.

[0054] The long object protected by the protective equipment 10 is not limited to the water supply pipe 96, but may be other types of pipes or rod-shaped members other than pipes. [Explanation of symbols]

[0055] 10...protector, 20...support portion, 21...support surface, 22...tip surface, 23...contact portion, 23a...surface, 23b...groove, 24...first side wall portion, 25...second side wall portion, 26...band passage, 27...first opening, 27a...edge, 27b...wide opening portion, 28...second opening, 28a...edge, 29...engagement portion, 30...first engagement piece, 30a...projection portion, 31...second engagement piece, 31a...projection portion, 32 ...first rib, 33...second rib, 34...third rib, 40...insertion portion, 40a, 40b...surface, 40c...groove, 41...corner, 42...tip edge, 43...thin area, 90...step portion, 91...first surface, 92...second surface, 93...step surface, 94...inlet, 95...outlet, 96...pipe, 97...cable tie, 98...saddle, H...height direction, L...length direction, S...space, W...width direction.

Claims

1. A protective device for an elongated body that protects an elongated body laid on a step portion where a first surface and a second surface are connected via a step surface from a protrusion at a portion where the step surface and the second surface intersect, a support portion disposed on the step surface side of the protrusion, the support portion being capable of supporting the elongated body and having a support surface that is inclined toward the first surface as it moves away from the step surface along the first surface; a flat-plate-shaped insertion portion extending from the support portion along the second surface and capable of being inserted between the elongated body and the second surface; A protective device for an elongated body, wherein the tip edge of the insertion portion is thinner than the base end side.

2. The protective equipment for elongated bodies according to claim 1 , wherein the tip edge of the insertion portion is thinner at the center in the width direction of the insertion portion than at both sides.

3. The elongated body protective device according to claim 1 or claim 2, wherein a predetermined region of the insertion portion from the base end side to the tip edge is a thin-walled region, and the thin-walled region becomes wider from the base end side toward the tip edge.

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