Safety equipment

Abstract

To provide a safety tool that can be easily bent while increasing the strength of a tip of a plate.SOLUTION: A safety tool 100 has a fixed plate 10 fixed above a lower tile on the ground under roof and a long plate 20 connected to the fixed plate 10 in a long shape and arranged to overlap an upper surface of the lower tile. The long plate 20 is bent at an intermediate position in a longitudinal direction and the part closer to the tip side than its bent position 31 is a bent end 30. The bent end 30 has a locking hole 32 for locking a member to be supported and a thickness of the surrounding portion surrounding the locking hole 32 in the long plate 20 is locally thicker.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to safety tools.

Background Art

[0002] Conventionally, there are known inventions in which a plate-shaped metal fitting (plate material) is fixed to the underlying surface where roof tiles are installed, and this metal fitting is used to fix objects installed on the roof or to ensure the safety of work on the roof (Patent Documents 1 and 2). A locking hole is provided at the tip of the metal fitting described in Patent Document 1, and a wire drawn from a rooftop installation such as a solar water heater or a TV antenna is tied to this locking hole to fix the rooftop installation to the roof. A locking hole is also provided at the tip of the metal fitting described in Patent Document 2, and the safety of the worker is ensured by hanging the carabiner at the tip of the safety rope in this locking hole.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the above-mentioned wire, carabiner, etc. are hung on the locking hole provided at the tip of the metal fitting, the stress becomes large. Therefore, in order to increase the strength, it is conceivable to increase the plate thickness of the entire metal fitting, but increasing the plate thickness of the entire metal fitting makes bending difficult.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a safety tool that can easily perform bending while increasing the strength of the tip of the plate material.

Means for Solving the Problems

[0006] To solve the above problems, the safety device of the first invention is a plate-shaped safety device used in a sloping roof in which roof tiles are arranged in multiple rows, and is passed between the upper tiles, which are the upper roof tiles, and the lower tiles, which are the lower roof tiles. The device has a fixing plate portion that is fixed above the lower tiles on the roof underlayment, and a long plate portion that is connected to the fixing plate portion and is elongated in shape and is arranged to overlap the upper surface of the lower tiles. The long plate portion is bent at an intermediate position in the longitudinal direction, and the part toward the tip of the bending point is a bent end. A locking hole is provided at the bent end for locking a member to be supported, and the thickness of the plate in the surrounding portion of the long plate portion surrounding the locking hole is locally thicker.

[0007] In safety equipment, wires, carabiners, etc., are attached to the locking holes, resulting in significant stress. To increase strength, one might consider increasing the overall thickness of the metal plate. However, increasing the overall thickness of the metal plate makes bending difficult. In this invention, the thickness of the plate is locally increased in the area surrounding the locking hole in the long plate section. This increases the strength of the area surrounding the locking hole, contributing to safety during roof work. Since the thickness of the plate in areas other than the area surrounding the locking hole is thinner than that of the area surrounding the locking hole, bending of these areas can be easily performed.

[0008] The safety device of the second invention is characterized in that, in the first invention, the thickness of the plate in the surrounding portion surrounding the locking hole is locally thickened by the overlapping of multiple layers of plate material.

[0009] In this invention, the thickness of the plate material surrounding the locking hole is locally increased by overlapping multiple plates. This increases the strength of the area surrounding the locking hole, contributing to safety during roof work.

[0010] The safety device of the third invention is characterized in that, in the second invention, it comprises a first plate material provided in a range including the fixed plate portion and the long plate portion and forming each of these portions, and a second plate material superimposed on the first plate material at the portion of the long plate portion that becomes the bent end, wherein ribs are provided on both sides of the long plate portion of the first plate material so as to straddle the bent position, and the second plate material is fixed between each of these ribs.

[0011] According to the present invention, the ribs provided on both sides of the long plate portion of the first plate material increase the strength of the bent portion even if the bent portion is thin. Furthermore, since the second plate material is fixed between each rib, the positioning of the second plate material can be controlled by each rib, and misalignment of the locking holes provided in each plate material can be suppressed.

[0012] The safety device of the fourth invention is characterized in that, in any of the first to third inventions, the elongated plate portion is connected to the fixing plate portion and has a tile upper end facing portion that extends in a direction upright from the roof substrate and faces the upper end surface of the lower tile, and a protruding portion that extends from the tile upper end facing portion and is bent to surround a projection provided on the upper end portion of the lower tile, and the protruding portion is connected to the bent end via an extension portion that extends along the upper surface of the lower tile.

[0013] According to the present invention, by providing a protruding portion on the long plate section, the safety device can be suitably attached to the lower tile which has a projection to prevent the intrusion of rainwater, etc. Furthermore, if the long plate section has a protruding portion that is bent and formed to surround the projection of the lower tile on the ridge side (fixing plate side), when the safety device is installed on the roof and, for example, the weight of a worker is applied to it, the load can be distributed at the bending point of the protruding portion. Therefore, safety during roof work can be improved compared to safety devices that do not have a protruding portion.

[0014] The safety device of the fifth invention, in the first invention, the long plate portion is continuous with the fixed plate portion, extends in a direction rising from the ground under the roof, and has a tile upper end facing portion facing the upper end surface of the lower tile. The tile upper end facing portion is a curved surface that curves convexly from the side of the fixed plate portion toward the eaves side. The fixed plate portion is rotatably fixed to the ground under the roof.

[0015] According to the present invention, the safety device can follow the movement of the operator, improving the convenience of the operator.

Brief Description of the Drawings

[0016] [Figure 1] Perspective view of the safety device according to this embodiment. [Figure 2] Side view of the safety device according to this embodiment. [Figure 3] Top view of the safety device according to this embodiment. [Figure 4] Diagram for explaining the reinforcing member. [Figure 5] Diagram for explaining the attachment method and usage mode of the safety device according to this embodiment. [Figure 6] Top view of the safety device according to other embodiments.

Modes for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same parts are denoted by the same reference numerals and the description thereof is omitted.

[0018] Referring to FIGS. 1 to 3, the safety device 100 according to this embodiment will be described. The safety device 100 is attached to an inclined roof having a predetermined gradient and is used to ensure the safety of workers working on the roof or to fix roof fixtures. FIG. 1 is a perspective view of the safety device 100. FIG. 2 is a side view of the safety device 100. FIG. 3 is a top view of the safety device 100.

[0019] The safety device 100 is integrally formed by pressing a metal plate and is in the shape of an elongated plate as a whole. The thickness of the metal plate is not particularly limited, but as an example, it is 1.2 mm. As shown in FIG. 1, the safety device 100 has a fixed plate portion 10 and an elongated plate portion 20 connected to the fixed plate portion 10. The elongated plate portion 20 is bent at a bending position 31 indicating the intermediate position in the longitudinal direction, and the tip side from the bending position 31 is a bent end portion 30. A reinforcing member 40 is attached to this bent end portion 30. The material of the metal plate is not particularly limited, and for example, stainless steel, aluminum, iron, etc. are used. Note that a plastic plate may be used instead of the metal plate.

[0020] The fixed plate portion 10 is a portion fixed to the ground under the roof. A plurality of fixing holes 11 are provided in the fixed plate portion 10, and fixing tools such as screws, bolts, and screws are inserted into the fixing holes 11 and fixed to the ground under the roof.

[0021] The elongated plate portion 20 is connected to the fixed plate portion 10 and has an elongated shape. Such an elongated plate portion 20 has a tile upper end facing portion 21, a protruding portion 22, and an extension portion 23. The tile upper end facing portion 21 extends so as to rise from the fixed plate portion 10 at a predetermined angle (for example, 90 degrees). One end of the tile upper end facing portion 21 is connected to the fixed plate portion 10, and the other end of the tile upper end facing portion 21 is connected to the protruding portion 22.

[0022] The protruding portion 22 extends from the tile upper end facing portion 21, is bent and formed, and is connected to the extension portion 23. As shown in FIG. 2, due to the connection between the tile upper end facing portion 21 and the protruding portion 22, a concave shape 24 is formed in the side view of the safety device 100. The extension portion 23 is a portion that extends linearly, and one end thereof is connected to the protruding portion 22, and the other end is connected to the bent end portion 30.

[0023] The bent end portion 30 is located towards the tip of the bending position 31, and one end of it is connected to the extension portion 23, and it is formed to rise from the extension portion 23 at a predetermined angle (for example, 135 degrees). As shown in Figures 1 and 3, the bent end portion 30 is provided with a locking hole 32 into which a member to be supported (for example, a wire or carabiner) is locked. In addition, a plate-shaped reinforcing member 40 is attached to the bent end portion 30 so as to overlap with the bent end portion 30. With the attachment of the reinforcing member 40, the thickness of the plate in the surrounding portion surrounding the locking hole 32 becomes locally thicker. The "surrounding portion surrounding the locking hole 32" refers to the portion towards the tip of the bending position 31. That is, the thickness of the plate in the surrounding portion surrounding the locking hole 32 is thicker than the plate thickness of the fixing plate portion 10, the tile upper end opposing portion 21, the protruding portion 22, and the extension portion 23. The reinforcing member 40 is also provided with a locking hole 42 into which a member to be supported is locked, similar to the bent end portion 30. As shown in Figures 1 and 3, the locking holes 32 and 42 are the same size, and when the reinforcing member 40 is attached to the bent end 30, the positions of locking holes 32 and 42 coincide. However, the sizes of locking holes 32 and 42 do not need to be the same; their sizes may be different.

[0024] As shown in Figures 1-3, reinforcing ribs 50 are provided on both sides of the long plate section 20. More specifically, the ribs 50 are provided along the curve from the side of the extension 23 to the side of the bent end 30, straddling the bending position 31. By providing the ribs 50 along the curve, the strength of the bent section can be increased.

[0025] Next, the details of the reinforcing member 40 will be described with reference to Figure 4. The reinforcing member 40 is attached to the bent end 30 to increase the strength of the surrounding portion that encloses the locking hole 32. The reinforcing member 40 is also made of a metal plate, similar to the fixing plate portion 10 and the elongated plate portion 20, but a plastic plate may also be used.

[0026] As shown in Figure 4, the reinforcing member 40 is provided with the aforementioned locking hole 42 and a rivet hole 41 for inserting a rivet. In this embodiment, the reinforcing member 40 is attached to the bent end 30 by using a rivet. However, the method of attaching the reinforcing member 40 to the bent end 30 is not limited to using a rivet, and other methods may be used. The plate thickness of the reinforcing member 40 is not particularly limited, but as an example, it is 3 mm.

[0027] The safety device 100 is constructed using two metal plates (plate materials). Specifically, as shown in Figure 2, the safety device 100 has a first plate material P1 that is provided in an area including the fixed plate portion 10 and the long plate portion 20 and forms these portions 10 and 20, and a second plate material P2 that is superimposed on the first plate material P1 at the portion of the long plate portion 20 that becomes the bent end 30. On the first plate material P1, ribs 50 are provided on both sides of the long plate portion 20 so as to straddle the bent position 31, and the second plate material P2 is fixed between each of these ribs 50.

[0028] Next, with reference to Figure 5, the method of attaching and using the safety device 100 will be explained.

[0029] As shown in Figure 5, the safety device 100 is used in a sloping roof where roof tiles are arranged in multiple vertical rows, by being passed between the upper roof tile 64 and the lower roof tile 63. The lower roof tile 63 is fixed to the roof underlayment (the upper surface of the roof underlayment material 60) by battens 62 that are formed to extend in a direction perpendicular to the sloping surface of the roof. The safety device 100 is attached to the lower roof tile 63 so as to conform to its shape.

[0030] Fasteners 61 such as screws are inserted into the fixing plate portion 10, and the fixing plate portion 10 is fixed to the roof underlayment above the lower tile 63. "Above the lower tile 63" means above the ridge side of the roof. The tile upper end opposing portion 21 is connected to the fixing plate portion 10, extends in a direction upright from the roof underlayment, and is fixed to the lower tile 63 opposite the upper end surface of the lower tile 63. The bent protruding portion 22 is arranged to surround the projection provided on the upper end portion of the lower tile 63. The projection on the lower tile 63 is provided to prevent the intrusion of rainwater, etc., and the safety device 100 is attached to the lower tile 63 in a manner that does not interfere with this function.

[0031] The protruding portion 22 is connected to the bent end portion 30 via an extension portion 23 that extends along the upper surface of the lower tile 63. After the safety device 100 is attached to the roof substrate and the lower tile 63, the upper tile 64 is laid so as to cover a portion of the safety device 100, and a portion of the extension portion 23 and the bent end portion 30 are exposed on the roof.

[0032] According to the embodiments described in detail above, the following effects can be obtained.

[0033] In the safety device 100, wires, carabiners, etc., are attached to the locking hole 32, resulting in significant stress. To increase strength, one might consider increasing the overall thickness of the metal plate, but this would make bending difficult. Therefore, in this embodiment, the thickness of the plate in the surrounding area around the locking hole 32 is locally increased. This increases the strength of the surrounding area around the locking hole 32, contributing to safety during roof work. Since the plate thickness of the parts other than the surrounding area around the locking hole 32 is thinner than that of the surrounding area, bending of the parts other than the surrounding area can be easily performed.

[0034] In this embodiment, the thickness of the plate material surrounding the locking hole 32 is locally increased by attaching a reinforcing member 40 to the bent end 30, that is, by overlapping multiple plates. This increases the strength of the surrounding area around the locking hole 32, contributing to safety during roof work.

[0035] According to this embodiment, the ribs 50 provided on both sides of the long plate portion 20 in the first plate material P1 increase the strength of the bent portion of the long plate portion 20, even if the bent portion is thin. Furthermore, since the second plate material P2 is fixed between each rib 50, the positioning of the second plate material P2 can be controlled by each rib 50, and misalignment of the locking holes 32 and 42 provided in each plate material P1 and P2 can be suppressed.

[0036] According to this embodiment, by providing a protruding portion 22 on the long plate portion 20, the safety device 100 can be suitably attached to the lower tile 63 which has a protrusion. Furthermore, with a configuration in which the long plate portion 20 has a protruding portion 22 that is bent to surround the protrusion of the lower tile 63 on the ridge side (fixing plate portion 10 side), when the safety device 100 is installed on the roof and, for example, the weight of a worker is applied to it, the load can be distributed at the bending point of the protruding portion 22. Therefore, safety during roof work can be improved compared to a safety device that does not have a protruding portion 22.

[0037] Furthermore, depending on the worker's movements, the safety device 100 may be pulled upward. In this case, the stress generated by the pulling is applied to the bending point of the protruding portion 22 that is closest to the eaves. By having the protruding portion 22, the distance from the point of force application (bending end 30) to the fulcrum (bending point closest to the eaves) is shortened, and the moment of force is reduced, compared to when the protruding portion 22 is not present. As a result, even if the safety device 100 is pulled upward, the lifting of the upper roof tile 64 can be suppressed.

[0038] <Variation> Some of the configurations of the above embodiment may be modified. Modified examples are described below.

[0039] As shown in Figure 6, the fixing plate portion 10 is provided with one fixing hole 12 instead of multiple fixing holes 11, and the fixing plate portion 10 is rotatably fixed to the roof substrate. The portion 21 facing the upper end of the tile is a curved surface that curves so as to be convex from the side of the fixing plate portion 10 toward the upper end surface of the lower tile 63. With this configuration, since the curved surface becomes the rotating surface, the safety device 100 can follow the movement of the worker, as shown by the arrow in Figure 6, improving the convenience of the worker.

[0040] Multiple safety devices 100 may be attached to the sloping roof. Since it is only necessary to switch the wire or carabiner to the safety device 100 near the work position each time the worker moves across the roof surface, the convenience for the worker is improved.

[0041] In the above embodiment, a reinforcing member 40 is attached to the bent end 30, that is, two plates are stacked to increase the thickness of the plate at the tip of the safety device 100, but the embodiment is not limited to this. Three or more plates may be stacked to increase the thickness of the plate at the tip.

[0042] The method for increasing the thickness of the plate at the tip of the safety device 100 is not limited to stacking multiple plates. For example, a thick plate may be used at the tip, and a thin plate may be used elsewhere, with the plate thickness increased on the tip side of the bending position 31, and a locking hole provided at the tip for attaching a wire or carabiner. [Explanation of Symbols]

[0043] 100...Safety device, 10...Fixing plate section, 20...Long plate section, 21...Part facing the upper end of the tile, 22...Protruding section, 23...Extension section, 30...Bent end, 31...Bending position, 32...Locking hole, 40...Reinforcement member, 42...Locking hole, 50...Rib

Claims

1. A plate-shaped safety device used in a sloping roof where roof tiles are arranged in multiple vertical rows, which is passed between the upper roof tile and the lower roof tile. A fixing plate portion is fixed above the lower tile on the roof underlayment, It has a long plate portion that is connected to the aforementioned fixing plate portion, is elongated in shape, and is arranged to overlap the upper surface of the lower tile, The aforementioned long plate portion is bent at an intermediate position in the longitudinal direction, and the part toward the tip of the bend is the bent end. The safety device is characterized in that the bent end is provided with a locking hole for securing a member to be supported, and the thickness of the plate in the surrounding portion of the long plate section is locally thicker.

2. The safety device according to claim 1, characterized in that the thickness of the plate in the surrounding portion surrounding the locking hole is locally thickened by the overlapping of multiple layers of plate material.

3. The first plate material is provided in a range including the fixed plate portion and the long plate portion and forms each of these portions, and the second plate material is superimposed on the first plate material at the portion of the long plate portion that becomes the bent end, The safety device according to claim 2, characterized in that ribs are provided on both sides of the long plate portion of the first plate material so as to straddle the bending position, and the second plate material is fixed between each of these ribs.

4. The aforementioned elongated plate portion is, The upper end portion of the tile is connected to the fixing plate portion, extends in a direction upright from the roof base surface, and faces the upper end surface of the lower tile, It has a protruding portion that extends from the upper end opposite portion of the tile and is bent to surround the projection provided on the upper end portion of the lower tile, The safety device according to any one of claims 1 to 3, characterized in that the protruding portion is connected to the bent end portion via an extension portion that extends along the upper surface of the lower tile.

5. The long plate portion is connected to the fixing plate portion, extends in a direction upright from the roof underlayment, and has a portion facing the upper end of the tile that faces the upper end surface of the lower tile. The portion facing the upper end of the tile is a curved surface that curves so as to be convex from the side of the fixing plate portion toward the upper end surface of the lower tile. The safety device according to claim 1, characterized in that the fixing plate portion is rotatably fixed to the roof underground surface.

Images