JP3197288U - Anti-theft device - Google Patents

Abstract

An anti-theft device capable of preventing drum theft is provided. An anti-theft device has a rod member and a pair of connecting members. The rod member is inserted along the axial direction of the drum into the shaft hole 4a of the drum 1 around which the wire is wound. The pair of connecting members has a block member 14 and a mounting portion 15 and are mounted on both ends of the rod member. A mounting hole 18 through which the lock means 30 can be inserted is formed in the block member. [Selection] Figure 2

Description

  Embodiments of the present invention relate to an antitheft device.

  A cable such as a power line for transmitting a large amount of power over a long distance is carried into the construction site and stored in a state of being wound around a drum. By the way, when the cable diameter of the cable wound around the drum is large or when the cable length is long, the drum becomes larger and heavier, and the handling becomes difficult. For this reason, the drum around which the cable is wound may be stored outdoors as it is.

  In recent years, due to an increase in the price of metal materials, cables stored outdoors may be stolen together with the drum. Therefore, various antitheft devices for preventing drum theft have been proposed. However, the anti-theft device having a simple configuration sometimes gives an impression that theft is visually easy.

Japanese Patent No. 4111668

  The problem to be solved by the present invention is to provide an antitheft device that can prevent theft of a drum.

  The antitheft device of the embodiment has a bar member and a pair of connecting members. The rod member is inserted along the axial direction of the drum into the shaft hole of the drum around which the wire is wound. The pair of connecting members are attached to both ends of the bar member, and are formed with mounting holes through which the locking means can be inserted.

The perspective view which shows a drum. The block diagram which shows the antitheft instrument of 1st Embodiment. The side view which shows the antitheft instrument of 1st Embodiment. The side view which shows the antitheft instrument of the modification of 1st Embodiment. The block diagram which shows the antitheft instrument of 2nd Embodiment. The block diagram which shows the antitheft instrument of 2nd Embodiment.

  Hereinafter, an antitheft device according to an embodiment will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view showing a drum.
As shown in FIG. 1, in the drum 1, a cable 2 such as a power line is wound around a cylindrical portion 3. The drum 1 is made of, for example, wood. In the following description, the axial direction of the central axis P of the cylindrical portion 3 (that is, the central axis P of the drum 1) is simply referred to as “axial direction”, and the direction orthogonal to the central axis P is referred to as “radial direction”.
A pair of disc-shaped flanges 4 are provided at both ends in the axial direction of the cylindrical portion 3. The diameter of the pair of flange portions 4 is larger than the outer diameter of the cylindrical portion 3.

  The pair of flanges 4 are provided with shaft holes 4a. The shaft hole 4a is formed in a circular shape when viewed in the axial direction, and penetrates the flange portion 4 in the thickness direction. The inner diameter of the shaft hole 4 a is smaller than the inner diameter of the cylindrical portion 3. The central axis of the shaft hole 4 a coincides with the central axis P of the drum 1.

  FIG. 2 is a configuration diagram illustrating the antitheft device of the first embodiment, and is a partial cross-sectional view including the central axis P. FIG. 3 is a side view showing the antitheft device of the first embodiment. 2 and 3, the antitheft device 10 is shown attached to the drum 1. In FIG. 2, the drum 1 is indicated by a two-dot chain line.

As shown in FIG. 2, the antitheft device 10 includes a pipe 11 (corresponding to a “bar member” in the claims) inserted into the shaft hole 4 a of the drum 1, and end pieces attached to both ends of the pipe 11. 13 (corresponding to “connecting member” in the claims).
The pipe 11 is made of a metal material, for example, and has a diameter smaller than the inner diameter of the shaft hole 4a. The length of the pipe 11 is longer than the length of the drum 1 in the axial direction.

The end piece 13 includes a block member 14 and a mounting portion 15 that connects the block member 14 and the pipe 11. The block member 14 is a plate member formed in a rectangular shape in plan view with the radial direction as the longitudinal direction. A mounting hole 18 is formed in the block member 14. A lock means 30 described later can be inserted into the mounting hole 18. The mounting portion 15 is formed in a columnar shape and extends along the axial direction from the central portion of the end surface in the axial direction of the block member 14. The diameter of the mounting portion 15 is smaller than the inner diameter of the shaft hole 4a. The tip of the mounting portion 15 is threaded and is screwed to the end of the pipe 11. At this time, the mounting portion 15 and the pipe 11 may be fixed by a clamp or the like so that the screwing is not released.
As shown in FIG. 3, when viewed from the axial direction, the outer shape of the block member 14 is larger than the inner shape of the shaft hole 4a. More specifically, the block member 14 has a dimension in the longitudinal direction larger than the inner diameter of the shaft hole 4a.

Hereinafter, the application method and operation of the antitheft device 10 of the present embodiment will be described.
First, the antitheft device 10 is attached to the drum 1. Specifically, first, the end piece 13 is attached to one end of the pipe 11. Next, the pipe 11 is inserted from the other end portion along the axial direction into the shaft hole 4 a of the drum 1. Next, the end piece 13 is attached to the other end of the pipe 11. Thereby, the antitheft device 10 is in a state in which the drum 1 is sandwiched between the pair of block members 14, and does not fall off from the drum 1.

  Next, the antitheft device 10 is connected to a strong structure. Specifically, both end portions of the chain 40 are attached to the attachment holes 18 of the pair of end pieces 13 through locking means 30 such as padlocks. At this time, the chain 40 is connected by being wound around a strong structure such as a support column. Thereby, the drum 1 is stored in a storage place in a state where the theft is prevented. For example, a wire or the like may be used for connection between the antitheft device 10 and the structure.

  According to this embodiment, the antitheft device 10 is formed with a pipe 11 inserted into the shaft hole 4a of the drum 1 and an attachment hole 18 that is attached to both ends of the pipe 11 and through which the lock means 30 can be inserted. A pair of end pieces 13. Thereby, in a state where the antitheft device 10 is mounted on the drum 1, the lock means 30 can be inserted into the mounting hole 18 and connected to another structure. For this reason, the drum 1 to which the antitheft device 10 is attached can be stored in a state in which theft is prevented. Moreover, since the anti-theft device 10 is formed by the pipe 11 and the end pieces 13 attached to both ends thereof, it gives an impression that it is visually heavy and difficult to be destroyed to the theft. be able to. Therefore, the theft of the drum 1 can be prevented.

  In addition, when the pair of shaft holes 4 a are largely separated, it is difficult to connect the pair of end pieces 13 to each other by a flexible member such as a chain passing through the inside of the cylindrical portion 3. On the other hand, the antitheft device 10 of this embodiment has a pipe 11 that is passed through the inside of the cylindrical portion 3. For this reason, when attaching the antitheft device 10 to the drum 1, the pair of end pieces 13 can be easily connected to each other via the pipe 11 even when the pair of shaft holes 4 a are largely separated. it can.

  Furthermore, when viewed from the axial direction, the outer shape of the end piece 13 is larger than the inner shape of the shaft hole 4a. For this reason, when the antitheft device 10 attached to the drum 1 moves along the axial direction, the end piece 13 contacts the collar portion 4. Thereby, it is possible to prevent the antitheft device 10 from falling out of the shaft hole 4a of the drum 1. Therefore, the antitheft device 10 can be securely attached to the drum 1.

Hereinafter, modified examples of the antitheft device of the present embodiment will be described. In addition, the same code | symbol is attached | subjected about the same part as embodiment mentioned above, and description is abbreviate | omitted or simplified.
FIG. 4 is a side view showing an antitheft device of a modification of the first embodiment. In FIG. 4, the antitheft device 110 is shown attached to the drum 1.

  In 1st Embodiment shown in FIG. 3, although the end piece 13 of the antitheft instrument 10 was provided with the block member 14 which is a rectangular-shaped board member, it is not limited to this. As shown in FIG. 4, the end piece 113 of the modified antitheft device 110 includes a disk-shaped block member 114. The diameter of the block member 114 is larger than the inner diameter of the shaft hole 4a. Therefore, the end piece 113 can cover the shaft hole 4a of the drum 1 when viewed from the axial direction. Thereby, for example, a heavy machine or the like can be used to prevent theft of gripping and transporting the drum 1 using the shaft hole 4a. The shape of the block member 114 is not limited to a disk shape, and the same effect can be obtained as long as the shape can cover the shaft hole 4a, such as a rectangular plate shape.

(Second Embodiment)
Next, the antitheft device of the second embodiment will be described.
5 and 6 are configuration diagrams showing the antitheft device of the second embodiment, and are partial cross-sectional views including the central axis P. FIG. 5 and 6, the antitheft device 210 is shown attached to the drum 1. 5 and 6, the drum 1 is indicated by a two-dot chain line.

  In the first embodiment shown in FIG. 2, end pieces 13 are attached to both ends of the pipe 11. In the first embodiment, one drum 1 is connected to another structure to prevent theft. On the other hand, in the second embodiment shown in FIG. 5, a connection unit 21 (corresponding to a “connection member” in the claims) having a connection piece 22 and a plate 23 is attached to at least one end of the pipe 11. This is different from the first embodiment shown in FIG. Furthermore, the second embodiment differs from the first embodiment shown in FIG. 2 in that a plurality of drums 1 are connected to prevent theft. In addition, the same code | symbol is attached | subjected about the same part as embodiment mentioned above, and description is abbreviate | omitted or simplified. FIG. 5 shows a state where adjacent antitheft devices 210 are connected to each other.

As shown in FIG. 5, a connecting unit 21 is attached to one end of the pipe 11. The connection unit 21 includes a connection piece 22 and a plate 23 attached to the connection piece 22.
The connecting piece 22 is formed in a cylindrical shape. The diameter of the connecting piece 22 is smaller than the inner diameter of the shaft hole 4a. One end of the connection piece 22 is threaded and is screwed to the end of the pipe 11.

The plate 23 is a plate member formed in a rectangular shape in plan view. A mounting hole 18 is formed in the plate 23. A plurality (two in the present embodiment) of attachment holes 18 are formed along one longitudinal direction of the plate 23 along the longitudinal direction of the plate 23.
The plate 23 is attached to the connection piece 22 so as to be rotatable around a rotation axis Q perpendicular to the axial direction by a shaft portion 24 provided at the other end in the longitudinal direction. Thereby, the connecting unit 21 has a first state (a state indicated by a solid line in FIG. 6) in which the plate 23 is rotated so that the longitudinal direction of the plate 23 is along the axial direction, and the longitudinal direction of the plate 23 is the axial direction. It is possible to switch to the second state (the state indicated by the two-dot chain line in FIG. 6) in which the plate 23 is rotated so as to intersect.

Here, the outer shape of the plate 23 has a shape that allows the shaft hole 4a to be inserted in the first state (see FIG. 6). Thereby, the antitheft device 210 can be attached to the drum 1 in a state where the end piece 13 and the connecting unit 21 are attached to the pipe 11.
Further, when viewed from the axial direction, the outer shape of the plate 23 is larger than the inner shape of the shaft hole 4a in the second state. The anti-theft device 210 in the second state is prevented from falling off the drum 1 by the plate 23 coming into contact with the collar portion 4.

Hereinafter, the application method and operation of the antitheft device 210 of the present embodiment will be described.
As shown in FIG. 5, when storing a plurality of drums 1, the plurality of drums 1 are connected using an antitheft device 210.
For example, when storing the two drums 1, the antitheft device 210 including the end piece 13 and the connecting unit 21 is attached to each drum 1. Next, the plates 23 of the antitheft device 210 attached to each drum 1 are overlapped so that the positions of the attachment holes 18 coincide.

  Here, as shown in FIG. 5, when the diameter of the flange 4 of each drum 1 is different, the position of the central axis P of each drum 1 is shifted. However, the plate 23 of the connection unit 21 is rotatable with respect to the connection piece 22. Thereby, since the position of the attachment hole 18 can be adjusted around the rotation axis Q, the plates 23 can be overlapped so that the positions of the attachment holes 18 coincide.

  Next, in a state where the plates 23 are overlapped with each other, the locking means 30 is inserted into the respective mounting holes 18 and locked, whereby the pair of antitheft devices 210 are connected. Thus, the two drums 1 can be connected by connecting the connection units 21 of the pair of anti-theft devices 210 together. Thereby, since it becomes difficult to carry each drum 1 separately, the theft of the drum 1 can be prevented.

  When storing three or more drums 1, two types of anti-theft devices 210 are used. Specifically, among the plurality of drums 1 arranged in tandem with respect to the axial direction, the antitheft device 210 including the end piece 13 and the connecting unit 21 is attached to the drums 1 arranged at both ends. In addition, the anti-theft device 210 including the two connecting units 21 is attached to the drums 1 arranged at both ends. Next, the plates 23 of the connection unit 21 of the antitheft device 210 attached to the adjacent drums 1 are overlapped so that the positions of the attachment holes 18 coincide. At this time, even when the positions of the central axes P of the respective drums 1 are shifted, the positions of the mounting holes 18 can be matched as in the case where the two drums 1 are stored. Next, the locking means 30 is inserted into the mounting hole 18 and locked, so that a pair of adjacent anti-theft devices 210 are connected. In this way, three or more drums 1 can be connected by connecting the connecting units 21 of a pair of adjacent anti-theft devices 210 together. Thereby, since it becomes difficult to carry each drum 1 separately, the theft of the drum 1 can be prevented.

  According to the present embodiment, the anti-theft device 210 includes a connecting piece 22 extending along the axial direction, a plate 23 in which the attachment hole 18 is formed and rotatably attached to the connecting piece 22; It has the connection unit 21 which has. Thereby, the antitheft device 210 can move the position of the mounting hole 18 with respect to the position of the shaft hole 4 a of the drum 1. For this reason, the antitheft device 210 can be connected via the connecting unit 21 even when the plurality of drums 1 are arranged with the center axis P being displaced. Therefore, since it becomes difficult to individually transport the plurality of drums 1 arranged in tandem, the drum 1 can be prevented from being stolen.

  Moreover, the plate 23 is formed in a long shape, and the connecting unit 21 can be inserted through the shaft hole 4a in the first state. For this reason, the antitheft device 210 can be attached to the drum 1 with the end piece 13 and the connecting unit 21 mounted. Thereby, the installation work of the antitheft device 210 can be simplified.

  In addition, in this embodiment, although the connection piece 22 was formed in the column shape, it is not limited to this. The connecting piece 22 has a columnar shape, and a portion of the outer peripheral surface to which the plate 23 is attached may be formed flat or may be formed in a polygonal column shape.

  Moreover, in each said embodiment, although the end piece 13 and the connection unit 21 were screwed with respect to the pipe 11, you may fix by press injection etc., for example.

  According to at least one embodiment described above, the anti-theft device has a pipe inserted into the shaft hole of the drum, and attachment holes that are attached to both ends of the pipe and can be inserted through the locking means. By having at least one of the end piece and the connection unit, the lock means can be inserted into the attachment hole and connected to another structure while the antitheft device is mounted on the drum. For this reason, the drum to which the antitheft device is attached can be stored in a state in which theft is prevented. Moreover, since the anti-theft device is formed by the pipe and the end pieces or connecting units attached to both ends thereof, it gives an impression that the theft person is visually heavy and difficult to break. be able to. Therefore, the drum can be prevented from being stolen.

  Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the device. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims of the utility model registration and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 1 ... Drum, 2 ... Cable, 4a ... Shaft hole 10, 110, 210 ... Anti-theft instrument, 11 ... Pipe (bar member), 13, 113 ... End piece (connection member), 18 ... Mounting hole, 21 ... Connection Unit (connection member), 22 ... connection piece, 23 ... plate, 30 ... locking means, Q ... rotating shaft

Claims (4)

A rod member inserted along the axial direction of the drum with respect to the axial hole of the drum around which the wire is wound;
A pair of connecting members attached to both ends of the bar member and having attachment holes through which the locking means can be inserted; and
Anti-theft instrument having. When viewed from the axial direction, the outer shape of at least one of the connecting members of the pair of connecting members is larger than the inner shape of the shaft hole.
The antitheft device according to claim 1. Of the pair of connecting members, at least one of the connecting members is
In a state of being mounted on the rod member, a connecting piece extending along the axial direction;
A plate in which the attachment hole is formed and rotatably attached to the connection piece;
The antitheft device according to claim 1 or 2, comprising: The plate is formed in a long shape, and is attached to the connection piece so as to be rotatable around a rotation axis that intersects the axial direction.
The connecting member having the plate is
A first state in which the plate is rotated so that the longitudinal direction of the plate is along the axial direction;
The plate is formed to be switchable to a second state in which the plate is rotated so that the longitudinal direction of the plate intersects the axial direction,
In the first state, the connecting member having the plate can be inserted through the shaft hole.
The antitheft device according to claim 3.

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