Rolling prevention tool

Abstract

To provide a rolling prevention tool which can be safely and easily attached at a low cost and can be compactly stored in a stacked state.SOLUTION: The clamping device is made of a flat plate-shaped elastic material, includes clamping portions 1111 and that bifurcate so as to be able to clamp a flange portion of a cable drum at both end portions in a longitudinal direction, an opening 12 between the clamping portions 1111 and at a tip end portion is smaller than a thickness of the flange portion, the opening 12 is formed so as to expand from the tip end portion toward a central portion side in the longitudinal direction, the flange portion is inserted between the clamping portions 1111 and so as to expand the opening 12 from the tip end portion, and the flange portion is clamped by an elastic force.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a rolling prevention device for a cable drum. [Background technology]

[0002] Long members such as electric wires are stored and transported wound on cable drums. A cable drum consists of a cylindrical winding core and disk-shaped flanges attached to both ends of the winding core. Since the outer periphery of the flanges is placed in contact with the ground, it is necessary to prevent the cable drum from rolling.

[0003] Patent Document 1 discloses a rolling prevention device having a shape in which a plurality of block-shaped spaced portions are stacked vertically and horizontally. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-59290 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventional bulky rolling arresters are difficult to stack and store, and tend to get scattered around at work sites where cable drums are handled, making them difficult to manage. Therefore, there was a demand for compact rolling arresters that could be stored in a more space-saving manner, and for rolling arresters that were easy to organize.

[0006] Furthermore, considering that a large number of anti-rolling devices are required at work sites where cable drums are handled, it is necessary to consider anti-rolling devices that are low-cost, safe, and easy to install.

[0007] The present invention has been made in consideration of the above points, and its object is to provide a rolling prevention device that can be installed safely and easily at low cost and can be stacked for compact storage. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides: A cable drum rolling prevention device, It is made of a flat elastic material, The cable drum has a pair of clamping sections at both ends in the longitudinal direction, which are bifurcated so as to be able to clamp the flange of the cable drum. an opening between the clamping portions at the tip end is smaller than the thickness of the flange portion, and the opening is formed so as to widen from the tip end toward the center portion in the longitudinal direction; The flange is inserted between the clamping parts so as to widen the opening from the tip, and is clamped by elastic force.

[0009] According to the above configuration, the anti-rolling device of the present disclosure can be easily, inexpensively, and quickly manufactured by cutting out a flat elastic material. Furthermore, because it is flat, it can be stacked for compact storage, making it easy to transport and store. It can be easily attached by simply inserting the flange of the cable drum into one of the clamping parts, and the other clamping part can be brought into contact with the ground to act as a support, preventing the cable drum from rolling, resulting in excellent workability and safety. The clamping parts, which can be easily attached to the flanges, are located at both longitudinal ends, making it possible to connect two cable drums to prevent rolling.

[0010] In the above-described rolling prevention device, it is preferable that the clamping portion is formed with curved corners on the inside of the opening.

[0011] The flange of the cable drum is inserted by pushing the opening of the clamping part open, so if the corners in the opening are sharp, it is difficult to insert, and stress may be concentrated at those points, causing damage.With the above configuration, the corners are curved, making it less likely to break.

[0012] In the above-described rolling prevention device, it is preferable that the width in the short side direction is formed to be a constant length along the longitudinal direction, or that the width in the longitudinal center portion is longer than the longitudinal end portions.

[0013] In a rolling prevention device made of an elastic material, if the width in the short direction at the center of the longitudinal direction is shorter than at the ends of the longitudinal direction, there is a risk that the strength of the central part of the rolling prevention device will be insufficient. However, with the above configuration, strength can be ensured. [Effects of the Invention]

[0014] As described above, the anti-rolling device of the present disclosure can provide an anti-rolling device that can be attached safely and easily at low cost and that can be stacked for compact storage. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a front view of a rolling prevention device according to an embodiment of the present invention. [Figure 2] FIG. 1 is a perspective view of a rolling prevention device according to an embodiment of the present invention. [Figure 3] FIG. 10 is a front view of a rolling prevention device according to another embodiment. [Figure 4] 1 is a side view showing a first state of use of the rolling prevention device of the present invention. FIG. [Figure 5] 1 is a plan view showing a first state of use of the rolling prevention device of the present invention. FIG. [Figure 6] FIG. 1 is a partial perspective view showing a first state of use of the rolling prevention device of the present invention. [Figure 7] FIG. 10 is a side view showing a second state of use of the rolling prevention device of the present invention. [Figure 8] FIG. 10 is a plan view showing a second state of use of the rolling prevention device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the present invention, its applications, or its uses.

[0017] [Embodiment] A rolling arrester 1 according to an embodiment of the present invention prevents the rolling of a cable drum, which will be described later. The rolling arrester is made of a flat elastic material. For example, it is made by cutting out a rubber plate of an appropriate thickness. In this embodiment, the rolling arrester is cut out from a rubber plate of 30 mm in thickness. The flat elastic material is not limited to a rubber plate, and may be any other material as long as it can clamp the flange inserted into the clamping portion by its elastic force.

[0018] 1 and 2, the rolling prevention device 1 is flat and has a substantially H-shape in plan view. The rolling prevention device 1 has both lateral sides extending linearly in the short side direction, a constant width in the short side direction along the longitudinal direction, and a shape that is symmetrical in the vertical and horizontal directions. The dimensions of the rolling prevention device 1 are not limited, but in this embodiment, the length in the long side direction is 300 mm, and the width in the short side direction is 140 mm.

[0019] The anti-rolling device 1 has a base 10 in the center in the longitudinal direction and clamping portions 11, 11 at both longitudinal ends. The length L1 of the clamping portion 11 is 120 mm, and the length L2 of the base 10 is 60 mm.

[0020] The clamping portion 11 has a tip portion that branches into two branches from the base portion 10 toward the longitudinal end. The dimension L3 of the opening 12 between the clamping portions 11, 11 at the tip portion is smaller than the thickness of the flange of the cable drum. The opening 12 is formed so as to widen from the tip portion toward the base portion 10. The dimension L2 of the bottom of the opening 12 is larger than or approximately the same as the thickness of the flange. The dimensions of the rolling prevention device are not particularly limited, but if L3 is 20 mm and L4 is 60 mm as in this embodiment, one type of rolling prevention device can be used for cable drums with flange thicknesses of 30 to 60 mm.

[0021] The clamping portion 11 is formed with a curved convex corner 12a on the tip side and a curved concave corner 12b on the base side inside the opening 12. The flange of the cable drum is inserted from the tip of the clamping portion 11 so as to push open the opening 12. If the corners are sharp, it is difficult to insert the flange, and stress may be concentrated at the corners, causing damage; however, by curving the corners 12a and 12b as in this embodiment, damage can be prevented.

[0022] [effect] The anti-rolling device 1 configured as described above does not require fasteners such as screws, and because of its simple shape, it can be easily, inexpensively, and quickly manufactured by cutting out a flat elastic material. Furthermore, because the anti-rolling device 1 is flat, it can be stacked for compact storage, making it easy to transport and store. It can be easily attached by simply inserting the flange of a cable drum into one of the clamping parts 11, and the other clamping part 11 can be brought into contact with the ground to act as a support, preventing the cable drum from rolling, resulting in excellent workability and safety. The clamping parts 11, 11, which can be easily attached to the flange, are located at both longitudinal ends, making it possible to connect two cable drums to prevent rolling.

[0023] [Other embodiments] 3 shows another embodiment of the rolling prevention device 1. In this embodiment, the width in the short side direction of the rolling prevention device 1 is longer at the longitudinal center than at the longitudinal ends. By making the width L5 of the base 10 longer than the width L6 of the end, the strength of the rolling prevention device 1 can be increased.

[0024] [First usage state] Next, a first use state of the rolling prevention device 1 will be described with reference to Figures 4 to 6. In the first use state, the two rolling prevention devices 1, 1 prevent one cable drum 2 from rolling.

[0025] The cable drum 2 comprises a cylindrical winding core 21 and disk-shaped flanges 22 provided on both ends of the winding core 21. The material of the cable drum 2 is not particularly limited, but it may be made of wood or iron, for example. The dimensions of the cable drum 2 are not particularly limited, but for example, the diameter of the flange 22 may be 0.3 to 2.6 m, and particularly those of about 1 to 1.5 m are common. The thickness of the flange 22 is, for example, 30 to 72 mm. The cable drum 2 stores, for example, an electric wire wound around the winding core 21, and the maximum mass of the electric wire that can be wound around the winding core 21 is, for example, 500 to 3000 kg.

[0026] The flange 22 of the cable drum 2 configured in this manner is inserted into one of the clamping parts 11. At the end of the clamping part 11, the dimension L3 of the opening 12 between the clamping parts 11, 11 at the tip is smaller than the thickness of the flange 22 of the cable drum, so when the flange 22 is inserted between the clamping parts 11, 11 so as to push open the opening 12 between the tip parts, the flange 22 can be clamped by elastic force. By bringing the other clamping part 11 into contact with the ground and installing two rolling prevention devices 1, 1 on both the left and right sides of the cable drum 2, it is possible to prevent the cable drum 2 from rolling.

[0027] [Second state of use] Next, a second usage state of the rolling prevention device 1 will be described with reference to Figures 7 and 8. In the second usage state, one rolling prevention device 1 is used to connect two cable drums 2, 3 to prevent rolling. The two cable drums 2, 3 may be of different sizes or may be the same size. The flange portion 22 of one cable drum 2 is inserted into one clamping portion 11. Furthermore, by inserting the flange portion 32 of the other cable drum 3 into the other clamping portion 11, the two cable drums 2, 3 can be connected with one rolling prevention device 1 to prevent rolling. [Explanation of symbols]

[0028] 1 Rolling prevention device 10 base 11 Clamping part 12 Aperture 12a Convex angle 12b Concave angle 2,3 Cable drum 21 Winding core 22,32 Tsuba section

Claims

1. A cable drum rolling prevention device, It is made of a flat elastic material, The cable drum has a pair of clamping sections at both ends in the longitudinal direction, which are bifurcated so as to be able to clamp the flange of the cable drum. an opening between the clamping portions at the tip end is smaller than the thickness of the flange portion, and the opening is formed so as to widen from the tip end toward the center portion in the longitudinal direction; A rolling prevention device characterized in that a flange portion is inserted between the clamping portions so as to push open the opening from the tip portion, and the flange portion is clamped by elastic force.

2. The anti-rolling device according to claim 1, The clamping portion has a curved corner formed on the inside of the opening.

3. The anti-rolling device according to claim 2, A rolling prevention device characterized in that the width in the short side direction is formed to be a constant length along the longitudinal direction, or that the width at the longitudinal center is longer than the longitudinal ends.

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