Roll prevention device for pillar-shaped objects

Abstract

To provide a rolling prevention tool for a columnar object that can appropriately prevent the rolling of a columnar object.SOLUTION: A rolling prevention tool for a columnar object comprises three support parts 2 capable of abutting on an outer peripheral surface of a columnar object. The three support parts 2 are positioned such that two of the support parts 2 are positioned side by side and the remaining one support part 2 is positioned at a place shifted from between the two support parts 2, and at least one support part 2 of the three support parts 2 is positioned such that a distance W between the one support part 2 and one of the two adjacent support parts 2 is different from a distance W between the at least one support part 2 and the other of the two adjacent support parts 2.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a rolling prevention device for a pole-shaped object, for preventing the rolling of a pole-shaped object such as a utility pole. [Background technology]

[0002] As a rolling prevention device for the above-mentioned pole-shaped object, a wedge-shaped rolling prevention device for utility poles is known (see, for example, Patent Document 1).

[0003] Such a utility pole rolling prevention device has an insertion portion formed by an arc-shaped curved surface, and when inserted into the lower part of a utility pole, which is a pillar-shaped object, the insertion portion can receive the outer surface of the utility pole, thereby preventing the utility pole from rolling. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 56-112130 Summary of the Invention [Problem to be solved by the invention]

[0005] However, while pillars come in a variety of sizes (diameters), the shape of the pole rolling prevention device is fixed, so depending on the size of the pillar, the insertion part may not be able to properly receive the pillar. In this case, the movement of the pillar relative to the insertion part is not restricted, and the pillar may not be properly prevented from rolling.

[0006] In view of the above circumstances, an object of the present invention is to provide a rolling prevention device for columnar objects that can appropriately prevent columnar objects from rolling. [Means for solving the problem]

[0007] The rolling prevention device for a columnar object of the present invention is The columnar member has three contact portions that can contact the outer peripheral surface of the columnar member. The three contact portions are arranged such that two contact portions are arranged side by side and the remaining one contact portion is positioned at a position shifted from between the two contact portions, At least one of the three abutment portions is arranged so that the distance between it and one of two adjacent abutment portions is different from the distance between it and the other of two adjacent abutment portions.

[0008] According to the rolling prevention device for columnar objects having the above configuration, when two of the three abutting parts are abutted against the outer peripheral surface of the columnar object, the outer peripheral surface of the columnar object can be supported at two points, and further, by using the remaining abutting part as a support, the columnar object can be prevented from rolling.

[0009] Furthermore, in the rolling prevention device for columnar objects, the distance between at least one of the three abutment parts and one of the abutment parts is different from the distance between the other abutment part and the one of the abutment parts, so that changing the combination of abutment parts that abut against the outer peripheral surface of the columnar object also changes the receiving width of the columnar object.

[0010] Therefore, the rolling prevention device for columnar objects can support the columnar object with two support parts by changing the receiving width to match the size (diameter) of the columnar object, making it easier to regulate the movement of the columnar object relative to the support parts, thereby appropriately preventing the columnar object from rolling.

[0011] In the rolling prevention device for a columnar object of the present invention, The three abutting portions may be arranged such that the intervals between two adjacent abutting portions are different from each other.

[0012] In this way, the receiving width of the columnar object can be switched between three types, which makes it easier for the columnar object to be properly received by the receiving portion.

[0013] In the rolling prevention device for a columnar object of the present invention, The three abutment portions may be arranged to correspond to the vertices of a right triangle or an acute triangle.

[0014] In this way, the rolling prevention device for columnar objects itself is less likely to tilt outward (away from the columnar object), making it easier to prevent the columnar object from rolling. [Effects of the Invention]

[0015] As described above, the rolling prevention device for columnar objects of the present invention can exhibit the excellent effect of appropriately preventing columnar objects from rolling. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view showing the configuration of a rolling prevention device for a columnar object according to one embodiment of the present invention. [Figure 2] FIG. 2 is a side view of one side of the rolling prevention device for a columnar object according to the embodiment. [Figure 3] FIG. 3 is an enlarged view of the contact portion fixing structure of the rolling prevention device for a columnar object according to the embodiment. [Figure 4] FIG. 4 is an explanatory diagram of the rolling prevention device for a columnar object according to the embodiment in use, showing a state in which only one contact portion is in contact with the outer peripheral surface of the columnar object. [Figure 5] FIG. 5 is an explanatory diagram of the rolling prevention device for a columnar object according to the embodiment in use, showing the state in which the two contact portions are in contact with the outer peripheral surface of the columnar object. [Figure 6] FIG. 6 is an explanatory diagram of the rolling prevention device for a columnar object according to the embodiment in use, showing the rolling prevention device fixed to the columnar object. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, a rolling prevention device for a columnar object (hereinafter referred to as a rolling prevention device) according to one embodiment of the present invention will be described with reference to the accompanying drawings. The columnar object is, for example, a utility pole, but it can also be used for other objects.

[0018] As shown in FIG. 1, the rolling prevention device 1 according to this embodiment includes three contact portions 2 that come into contact with the outer peripheral surface of a columnar object, and a base 3 to which the three contact portions 2 are attached.

[0019] The rolling prevention device 1 according to this embodiment is configured so as to be fixed to a columnar object O using a belt-shaped restraining device 4 (see FIG. 6).

[0020] The three contact portions 2 are formed in a columnar shape (cylindrical in this embodiment). The three contact portions 2 are arranged parallel or approximately parallel to one another. It is preferable that the three contact portions 2 are arranged parallel or approximately parallel to the columnar object when the rolling prevention device is fixed to the columnar object.

[0021] 2, the three contact portions 2 are attached to the base 3 in a state where, in a side view, two of the contact portions 2 are arranged side by side, and the remaining contact portion 2 is positioned at a location offset from between the two contact portions 2. Therefore, each of the three contact portions 2 is positioned to match the location of a different vertex of an imaginary triangle T (a right-angled triangle in this embodiment).

[0022] The abutting portions 2 are arranged such that the distance W between one abutting portion 2 of two adjacent abutting portions 2 is different from the distance W between the other abutting portion 2 of the two adjacent abutting portions 2. In this embodiment, each of the three abutting portions 2 is arranged such that the distance W between one abutting portion 2 of the two adjacent abutting portions 2 is different from the distance W between the other abutting portion 2 of the two adjacent abutting portions 2. Note that the distance W between two adjacent abutting portions 2 can be expressed, for example, as the shortest distance between one abutting portion 2 of the two adjacent abutting portions 2 and the other abutting portion 2 of the two adjacent abutting portions 2.

[0023] The receiving width for receiving the columnar object O by the two contact portions 2 varies depending on the interval W between the two adjacent contact portions 2. Therefore, in the rolling prevention device 1 of this embodiment, the three receiving widths are different from one another.

[0024] The contact portion 2 of this embodiment has a support surface 200 for supporting the outer peripheral surface of the columnar object O. The support surface 200 is configured by the entire outer peripheral surface of the contact portion 2.

[0025] Further, a shaft portion 201 is inserted through the contact portion 2 along the axial direction of the contact portion 2 itself, and this shaft portion 201 is also inserted through the base 3.

[0026] 1, the base 3 of this embodiment has a pair of base plates 30 and an abutment fixing structure 31 (see FIG. 3) for fixing the abutment 2 to the base plates 30. One end face (the end face on one side in the axial direction) of each abutment 2 is attached to one base plate 30, and the other end face (the end face on the other side in the axial direction) of each abutment 2 is attached to the other base plate 30.

[0027] 3, the base plate 30 has three elongated plate portions 300. The three elongated plate portions 300 are connected at their longitudinal ends, so that the base plate 30 is formed in a triangular shape (a right-angled triangle shape in this embodiment).

[0028] The corners of the base plate 30 (both ends of the long plate portion 300) form abutment attachment portions (not numbered) to which the abutment portions 2 are attached. A separate abutment portion 2 is attached to each of the three abutment attachment portions.

[0029] The contact portion fixing structure 31 may be configured, for example, to have a pair of male threaded portions 310 formed at both ends of the shaft portion 201, and a pair of female threaded portions 311 each screwed into a separate male threaded portion 310 from the outside of the base plate 30.

[0030] Spaces are formed between the three contact parts 2 held by the base 3, and in this embodiment, these spaces serve as insertion spaces for passing the restraint device 4 through (see FIG. 6).

[0031] The structure of the rolling prevention device 1 according to this embodiment is as described above. Next, a method of using the rolling prevention device 1 will be described.

[0032] When installing the rolling prevention device 1, two abutting portions 2 are determined to be in contact with the outer peripheral surface of the columnar object O. If the selected two abutting portions 2 cannot be brought into contact with the columnar object O as shown in Fig. 4, two abutting portions 2 are reselected, and the two abutting portions 2 are brought into contact with the columnar object O as shown in Fig. 5.

[0033] 6, the restraining device 4 is passed through the insertion space, and the rolling prevention device 1 is fastened to the columnar object O by the restraining device 4. At this time, one of the contact parts 2 that is not in contact with the outer circumferential surface of the columnar object O may be placed on the surface where the columnar object O is placed.

[0034] The rolling prevention devices 1 may be installed on both sides of the columnar object O, or if it is only necessary to prevent the columnar object O from rolling in one direction, the rolling prevention devices 1 may be installed on only one side of the columnar object O. It is also possible to install multiple rolling prevention devices 1 lined up along the longitudinal direction of the columnar object O.

[0035] When the rolling prevention device 1 is installed, even if the columnar object O tries to roll, one of the contact parts 2 that is not in contact with the outer peripheral surface of the columnar object O (more specifically, one of the contact parts 2 that is not in contact with the outer peripheral surface of the columnar object O and the long plate part 300 extending upward from that part 2) acts as a support to prevent the columnar object O from rolling.

[0036] As described above, according to the rolling prevention device 1 of this embodiment, when two of the three contact parts 2 are abutted against the outer peripheral surface of the columnar object O, the outer peripheral surface of the columnar object O can be supported at two points, making it easier to properly support the columnar object O.Furthermore, if the columnar object O attempts to roll, the remaining contact part 2 (the contact part 2 that is not abutting against the columnar object O) provides support and prevents the columnar object O from rolling.

[0037] Furthermore, the abutment portions 2 are arranged so that the distance W between one of two adjacent abutment portions 2 and the distance W between the other of two adjacent abutment portions 2 is different, so that changing the combination of abutment portions 2 that abuts against the outer peripheral surface of the columnar object O also changes the receiving width of the columnar object O.

[0038] Therefore, the rolling prevention device 1 can change the receiving width to match the size (diameter) of the columnar object O and receive the columnar object O with the two contact portions 2, making it easier to restrict the movement of the columnar object O relative to the contact portions 2. Therefore, the rolling prevention device 1 of this embodiment can exhibit the excellent effect of appropriately preventing the columnar object O from rolling.

[0039] Furthermore, in the rolling prevention device 1 of this embodiment, the three abutting portions 2 are arranged such that the distance W between one abutting portion 2 of two adjacent abutting portions 2 and the distance W between the other abutting portion 2 of the two adjacent abutting portions 2 are different, and therefore the three receiving widths are different. Therefore, by making it possible to switch the receiving width of a columnar object between three types, it becomes easier for the abutting portions 2 to properly receive the columnar object.

[0040] Furthermore, since the three contact parts 2 are positioned in accordance with the vertices of a right-angled triangle, the anti-rolling device itself is less likely to tilt outward (away from the columnar object) when installed, making it easier to prevent the columnar object from rolling.

[0041] It should be noted that the rolling prevention device for columnar objects according to the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made within the scope that does not deviate from the gist of the present invention.

[0042] Although not specifically mentioned in the above embodiment, the diameters of the three contact portions 2 may be the same or different.

[0043] In the above embodiment, the three contact portions 2 are arranged to correspond to different vertices of a right triangle, but this is not limiting. For example, the three contact portions 2 may be arranged to correspond to different vertices of an acute triangle.

[0044] If the three contact parts 2 are positioned at different vertices of a right-angled triangle or an acute-angled triangle, it will be difficult for the remaining contact part 2 to be positioned on the outside when two contact parts 2 are grounded on the area where the columnar object is placed, making it easier to prevent the columnar object from rolling when the roll prevention device itself tilts.

[0045] The three abutting portions 2 may also be arranged to align with the vertices of an isosceles triangle. In this case, two of the three abutting portions 2 are arranged so that the distance W between two adjacent abutting portions 2 is different. Even in this way, the receiving width of the columnar object can be changed by changing the combination of abutting portions 2 that abut against the outer circumferential surface of the columnar object.

[0046] Although not specifically mentioned in the above embodiment, the storage area may be, for example, land or a building where materials such as columnar objects O are stored, or it may be the loading platform of a vehicle that transports columnar objects O.

[0047] In the above embodiment, the rolling prevention device 1 is fixed to the columnar object O by the restraining device 4, but the rolling prevention device 1 may be used without being fixed to the columnar object O by the restraining device 4. However, fixing the rolling prevention device 1 to the columnar object O with the restraining device 4 can more reliably prevent the columnar object O from rolling. [Explanation of symbols]

[0048] 1...Prevention device, 2...Abutment part, 3...Base, 4...Restraint device, 30...Base plate, 31...Abutment part fixing structure, 200...Support surface, 201...Axis part, 300...Long plate part, O...Column-shaped object, T...Triangle, W...Spacing

Claims

1. Three columnar abutting portions that can abut against an outer peripheral surface of the columnar object; It has a triangular base plate, the three abutment portions are arranged at the corners of the base plate in accordance with the positions of the vertices of a right triangle or an acute triangle, At least one of the three abutting portions is disposed such that a distance between the at least one abutting portion and one of two adjacent abutting portions is different from a distance between the at least one abutting portion and the other of the two adjacent abutting portions. A rolling prevention device for pillar-shaped objects.

2. The three abutment portions are arranged such that the intervals between two adjacent abutment portions are different from each other. The rolling prevention device for a columnar object according to claim 1.

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