Main rope column support tool

Abstract

To provide a main rope column support tool suited for repeating rental.SOLUTION: A main rope column support tool 1 has: a main plate 2 which is laid on an upper surface of a flange so that it protrudes to one part in a width direction of a flange from the flange in an H-shape steel and has a pair of clearance holes at a position protruded from the flange and with intervals in a lengthwise direction of the flange; a cover plate 3 which is piled over the upper surface of the main plate 2 protruding in one part in the width direction from the flange and has a pair of second clearance holes at respective positions continuing to the pair of first clearance holes; a sub plate 4 which is piled on a lower surface of the flange so that it protrudes to one part in the width direction from the flange and has a pair of third clearance holes at respective positions continuing to a pair of first clearance holes; a pair of bolts 5 which are put through the pair of first clearance holes, the pair of second clearance holes, and the pair of third clearance holes; and a pair of nuts 6 embedded in the pair of bolts 5.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a life rope pole support. [Background technology]

[0002] Workers at height are required to wear a safety belt (fall arrest device) that supports the body in order to prevent accidents in the event of a fall. The safety belt is connected via a connecting belt to a life rope that is stretched across a pair of life rope posts. The pair of life rope posts are fixed to flanges of H-shaped steel that serves as scaffolding at construction sites, etc., and when the width of the flange is small, they are fixed via a life rope post support that compensates for the width of the flange (see, for example, Patent Documents 1 to 5). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-038510 A [Patent Document 2] Patent No. 6843385 [Patent Document 3] Design Registration No. 1723554 [Patent Document 4] Design Registration No. 1723492 [Patent Document 5] Design Registration No. 1706368 Summary of the Invention [Problem to be solved by the invention]

[0004] The life rope pole supports are easily damaged because they are fastened to the flanges of the H-shaped steel by the fastening bolts of the life rope pole. Damaged life rope pole supports look bad and are not suitable for repeated rental.

[0005] The present invention has been made in consideration of the above problems, and aims to provide a life rope pole support device that is suitable for repeated rental. [Means for solving the problem]

[0006] (1) The present invention is a life rope post support that is attached to a flange of an H-shaped steel beam and supports a life rope post while compensating for the width of the flange, comprising: a main plate that is superimposed on the upper surface of the flange so as to protrude from the flange to one side in the width direction of the flange and has a pair of first blind holes at positions that protrude from the flange and are spaced from each other in the longitudinal direction of the flange; a cover plate that is superimposed on the upper surface of the main plate so as to protrude from the flange to one side in the width direction and has a pair of second blind holes at each position connected to the pair of first blind holes; a sub-plate that is superimposed on the lower surface of the flange so as to protrude from the flange to one side in the width direction and has a pair of third blind holes at each position connected to the pair of first blind holes; a pair of bolts that are passed through the pair of first blind holes, the pair of second blind holes, and the pair of third blind holes, and a pair of nuts that are fitted into each of the pair of bolts.

[0007] According to the present invention, disassembly can be easily performed by removing each of the pair of nuts from each of the pair of bolts. Therefore, according to the present invention, the cover plate that is easily damaged when fastened to the flange of the H-shaped steel by the fastening bolt of the life rope support can be easily replaced.

[0008] (2) The present invention also relates to the main rope post support device described in (1) above, characterized in that the main plate is configured in an L-shape when viewed from the side, by bending the other end of the flange in the width direction downward so as to wrap around it.

[0009] According to the present invention, the main plate is configured in an L-shape when viewed from the side so as to wrap around the other widthwise end of the flange, thereby preventing the main plate from falling off the flange of the H-shaped steel when attached to the flange of the H-shaped steel and supporting the life rope support.

[0010] (3) The present invention also relates to the life rope post support device described in (1) above, characterized in that it is provided with a guide means located above the cover plate and limiting the widthwise movement of the tightening bolt of the life rope post when installing the life rope post.

[0011] According to the present invention, since a guide means is provided for limiting the widthwise movement of the tightening bolt of the life rope post, the life rope post can be easily installed.

[0012] (4) The present invention also provides a life rope pole support device as described in (1) above, characterized in that it is provided with a handle located above the cover plate.

[0013] According to the present invention, since the handle is provided, attachment and detachment to and from the flange of the H-shaped steel can be easily performed. Effect of the Invention

[0014] According to the present invention described above in (1) to (4), a life rope pole support suitable for repeated rental can be provided. [Brief description of the drawings]

[0015] [Figure 1] 1 is an external perspective view of a lifeline pole support device according to an embodiment of the present invention; FIG. [Diagram 2] This is an exploded oblique view of the life rope pole support shown in Figure 1. [Diagram 3] FIG. 2 is an exploded perspective view of a main plate, a handle, and a pair of guide bars. [Figure 4] FIG. 2 is a side view of the life rope pole support shown in FIG. 1. [Diagram 5] This is a diagram showing the state in which the life rope pole support shown in Figure 1 is used, showing the state before it is attached to the flange of the H-shaped steel. [Figure 6] This is a diagram showing the use state of the life rope pole support device shown in Figure 1, showing the state before supporting the life rope pole. [Figure 7]This is a diagram showing the use state of the life rope pole support device shown in Figure 1, showing the state after the life rope pole is supported. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, a life rope pole support device 1 according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0017] First, the structure of a life rope post support tool 1 according to an embodiment of the present invention will be described with reference to Figures 1 to 4. Figure 1 is an external perspective view of the life rope post support tool 1. Figure 2 is an exploded perspective view of the life rope post support tool 1. Figure 3 is an exploded perspective view of a main plate 2, a handle 8, and a pair of guide bars 7. Figure 4 is a side view of the life rope post support tool 1.

[0018] The life rope post support 1 shown in Figures 1, 2 and 4 is attached to the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) that serves as scaffolding at a construction site, etc., when the width of the flange F (see Figures 5 to 7) is small, and supports the life rope post S (see Figures 5 to 7) while supplementing the width of the flange F (see Figures 5 to 7). Note that the life rope posts S (see Figures 5 to 7) are used in pairs, and a life rope that is connected to the safety belt worn by the worker at height via a connecting belt is spanned between the life rope posts S (see Figures 5 to 7).

[0019] Specifically, the life rope pole support 1 comprises a main plate 2, a cover plate 3, a subplate 4, a pair of bolts 5, a pair of nuts 6, a pair of guide bars (guide means) 7, and a handle 8.

[0020] The main plate 2 shown in Figures 1 to 4 is made by processing a rectangular stainless steel plate, and is placed on the upper surface of a flange F (see Figures 5 to 7) of an H-shaped steel H (see Figures 5 to 7) so as to protrude from the flange F (see Figures 5 to 7) on one side in the width direction of the flange F (see Figures 5 to 7).

[0021] This main plate 2 has a pair of first through holes 21 at positions protruding from a flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) and spaced apart from each other in the longitudinal direction of the flange F (see Figures 5 to 7).

[0022] In addition, the main plate 2 has two pairs of guide bar mounting holes 22 for mounting a pair of guide bars 7 at positions spaced apart from each other in the longitudinal and width directions of the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7), and also has a pair of handle mounting holes 23 for mounting a handle 8 at positions spaced apart from each other in the width direction of the flange F (see Figures 5 to 7).

[0023] Furthermore, the main plate 2 is configured in an L-shape when viewed from the side by bending the other widthwise end portion downward so as to wrap around the other widthwise end portion of the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7).

[0024] The cover plate 3 shown in Figures 1, 2 and 4 is made by processing a rectangular stainless steel plate, and is placed on the upper surface of the main plate 2 so that it protrudes from the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) on one side in the width direction.

[0025] This cover plate 3 has a pair of second through holes 31 at positions protruding from the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) and spaced apart from each other in the longitudinal direction of the flange F (see Figures 5 to 7), i.e., at positions connected to the pair of first through holes 21.

[0026] In addition, the cover plate 3 has a pair of guide bar slits 32 at positions overlapping with a pair of guide bars 7 attached to the main plate 2, and has a handle slit 33 at a position overlapping with a handle 8 attached to the main plate 2.

[0027] The sub-plate 4 is made by processing a rectangular stainless steel plate, and is placed on the underside of the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) so that it protrudes from the flange F (see Figures 5 to 7) to one side in the width direction.

[0028] This sub-plate 4 has a pair of third through holes 41 at positions protruding from the flange F (see Figures 5 to 7) of the H-shaped steel H (see Figures 5 to 7) and spaced apart from each other in the longitudinal direction of the flange F (see Figures 5 to 7), i.e., at positions connected to each of the pair of first through holes 21.

[0029] The pair of bolts 5 are passed through the pair of first guide holes 21, the pair of second guide holes 31, and the pair of third guide holes 41. Specifically, the pair of bolts 5 are each passed through one of the pair of first guide holes 21, and the second guide hole 31 and the third guide hole 41 connected to the first guide hole 21.

[0030] A pair of nuts 6 are fitted onto each of the pair of bolts 5 .

[0031] A pair of guide bars 7 shown in Figures 1 to 4 are positioned above the cover plate 3, and limit the movement in the width direction of the flanges F (see Figures 5 to 7) of the fastening bolts B (see Figures 5 to 7) of the life rope posts S (see Figures 5 to 7) when the life rope posts S (see Figures 5 to 7) are installed. The pair of guide bars 7 are fitted into two pairs of guide bar mounting holes 22 in the main plate 2, and then fixed by welding.

[0032] The handle 8 is located above the cover plate 3. The handle 8 is fitted into a pair of handle mounting holes 23 in the main plate 2 and then fixed by welding.

[0033] Next, a method of using the life rope pole support 1 will be described with reference to Figs. 5 to 7. Fig. 5 is a diagram of the life rope pole support 1 in use, showing the state before it is attached to the flange F of the H-shaped steel H. Fig. 6 is a diagram of the life rope pole support 1 in use, showing the state before it supports the life rope pole S. Fig. 7 is a diagram of the life rope pole support 1 in use, showing the state after it supports the life rope pole S.

[0034] First, the life rope pole support 1 is attached to the flange F of the H-shaped steel H after the distance between the main plate 2 and the sub-plate 3 has been widened (see Fig. 5 → Fig. 6). The life rope pole support 1 is attached to the flange F of the H-shaped steel H to compensate for the width of the flange F (see Fig. 6). After that, the life rope pole S is attached to the flange F of the H-shaped steel H to which the life rope pole support 1 is attached.

[0035] As described above, the life rope pole support 1 can be easily disassembled by removing each of the pair of nuts 6 from each of the pair of bolts 5. Therefore, the life rope pole support 1 can easily replace the cover plate 3, which is easily damaged when fastened to the flange F of the H-shaped steel H by the fastening bolt B of the life rope pole S. This makes it possible to provide a life rope pole support 1 that is suitable for repeated rental.

[0036] In addition, according to the life rope pillar support device 1, the main plate 2 is configured in an L-shape when viewed from the side so as to wrap around the other widthwise end of the flange F, so that when the flange F of the H-shaped steel H is attached and the life rope pillar S is supported, it is possible to prevent it from falling off from the flange F of the H-shaped steel.

[0037] In addition, the life rope post support device 1 is provided with a pair of guide bars 7 that limit the widthwise movement of the fastening bolt B of the life rope post S, making it easy to install the life rope post S.

[0038] In addition, since the life rope pole support 1 is provided with a handle 8, it can be easily attached to and detached from the flange F of the H-shaped steel H.

[0039] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit and technical concept of the present invention. In other words, the position, size, length, number, shape, material, etc. of each component can be appropriately changed. [Explanation of symbols]

[0040] 1 Main rope support 2 Main plate 21 First Fool's Hole 22 Two pairs of guide bar mounting holes 23 Pair of handle mounting holes 3 Cover Plate 31 The Second Fool's Hole 32 Pair of guide bar slits 33 Handle slit 4 Subplate 41 The Third Fool's Hole 5 Pair of bolts 6 Pair of nuts 7 Pair of guide bars (guide means) 8 Handle HH section steel F flange S Main rope support B Fastening bolt

Claims

1. A life rope pole support device that is attached to a flange of an H-shaped steel and supports a life rope pole while supplementing the width of the flange, a main plate that is placed on an upper surface of the flange so as to protrude from the flange in one width direction of the flange, and has a pair of first through holes at positions protruding from the flange and spaced apart from each other in the longitudinal direction of the flange; a cover plate that is placed on an upper surface of the main plate so as to protrude from the flange in one direction in the width direction, the cover plate having a pair of second through holes at positions respectively connected to the pair of first through holes; a subplate that is superimposed on a lower surface of the flange so as to protrude from the flange in one direction in the width direction, the subplate having a pair of third through holes at positions respectively connected to the pair of first through holes; a pair of bolts passed through the pair of first blind holes, the pair of second blind holes, and the pair of third blind holes; and a pair of nuts fitted onto each of the pair of bolts. Main rope support.

2. The other end of the flange in the width direction of the main plate is bent downward so as to wrap around the other end of the flange in the width direction, so that the main plate is configured in an L-shape in a side view. A lifeline post support as claimed in claim 1.

3. The present invention is characterized in that it is provided with a guide means located above the cover plate, which limits the movement of the tightening bolt of the life rope support in the width direction when the life rope support is installed. A lifeline post support as claimed in claim 1.

4. The cover plate is provided with a handle located above the cover plate. A lifeline post support as claimed in claim 1.

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