JP4841356B2 - Opening and closing bar for circuit breaker - Google Patents

Description

  The present invention relates to an open / close bar for a circuit breaker for use in a circuit breaker that switches whether a vehicle such as an expressway, a toll road, a parking lot, a gas station, a railroad crossing or the like is allowed to pass, and prevents unauthorized traffic of the vehicle.

  Conventional open / close bars for circuit breakers have been proposed, for example, in which impact buffer members made of styrene or the like are arranged above and below a square pipe laminated with carbon fiber reinforced plastic sheets, and a protective film is wound around the outer periphery ( JP 2001-160197). With such a configuration, a light and tough open / close bar can be obtained. In addition, the impact buffering members can be placed only on the top and bottom of the pipe, making it possible to reduce the weight and other effects.

  In addition, an elastic material is disposed on the outer periphery of the core material made of carbon FRP or the like, and a hollow portion is provided in the elastic material in parallel with the core material, and the base end extended from the elastic material serves as a breaker. A shaft support is proposed (Japanese Patent Laid-Open No. 2003-41536). With such a configuration, when a vehicle collides, it is possible to obtain effects such as preventing damage to the vehicle by absorbing impact by deformation of the elastic material and contraction of the hollow part.

In addition, a buffer member is provided on the outer periphery of the cylindrical pipe, and a bowl-shaped resin having at least two rows of protrusions along the longitudinal direction of the pipe, and a buffer member provided with an impact relief space are proposed. (Japanese Patent Laid-Open No. 2004-285798). With such a configuration, the collision load when a vehicle collides can be distributed up and down the pipe and evenly applied to the pipe to prevent breakage of the open / close bar.
JP 2001-160197 A JP 2003-41536 A JP 2004-285798 A

  In a conventional breaker opening and closing bar having such a configuration, for example, an impact buffer member made of styrene or the like is disposed above and below a square pipe laminated with carbon fiber reinforced plastic sheets, and a protective film is wound around the outer periphery. In this case, since the impact buffering members are only arranged on the top and bottom, when the vehicle collides from the front, there is a possibility that the opening / closing rod may be damaged or the vehicle may be damaged. In addition, once the open / close bar is broken, it is difficult to recycle and use it, resulting in the problem of becoming industrial waste.

  In addition, an elastic material is disposed on the outer periphery of the core material made of carbon FRP or the like, and a hollow portion is provided in the elastic material in parallel with the core material, and the base end extended from the elastic material serves as a breaker. In the case of the shaft support, since the hollow portion is provided under the core material, there is a possibility that the opening / closing rod may be damaged or the vehicle may be damaged when the vehicle collides from the front. Further, since it is made of carbon FRP or the like, it is difficult to recycle and use it when it is damaged.

  In addition, a buffer member is provided on the outer periphery of the cylindrical pipe, a bowl-shaped resin having at least two rows of protrusions along the longitudinal direction of the pipe, and a shock relief space provided on the buffer member. As a result, there was a possibility that the opening / closing rod itself would increase in weight due to a bowl-shaped resin or the like having protrusions, and the opening operation would be delayed, causing collision with a vehicle approaching at high speed. In addition, once the open / close bar is broken, it is difficult to recycle and use it, resulting in the problem of industrial waste.

  The present invention has been proposed in view of the above, and includes a core material made of cardboard, a cushioning material sheathed on the core material, and a foamed resin reinforcing material built in the core material, and reduces the overall weight. In addition, an object of the present invention is to provide an open / close bar for a circuit breaker that can reduce the amount of deflection by increasing the secondary moment of inertia while maintaining the elasticity of the surface.

In order to achieve the above object, the circuit breaker opening / closing bar of the present invention is a circuit breaker opening / closing bar that prevents the vehicle from passing through the circuit breaker and has a cylindrical core with a protective film on the surface. and wood, and the buffer material that is exterior to the core material, a reinforcing core is decorated on the core member, characterized by comprising a reinforcing material filled in the core within the material.

The circuit breaker opening / closing bar of the present invention is a circuit breaker opening / closing bar for preventing the vehicle from passing through the circuit breaker, and includes a cylindrical core material and a buffer material sheathed on the core material, It is made of a reinforcing material filled in the core material, and the core material is made of paper and is provided with a release film on the inner periphery .

  In the present invention, the reinforcing material is urethane foam.

  In the present invention, the reinforcing core member is made of paper and is formed thin toward the tip.

  In the present invention, the core material is made of paper, and a release film is disposed on the inner periphery.

  Since this invention consists of an above-described structure, there can exist an effect which is demonstrated below.

In the present invention, the vehicle that passes through the circuit breaker is prevented from progressing, and a cylindrical core material provided with a protective film on the surface, a cushioning material sheathed on the core material, and the core material Since it consists of the reinforcing core material provided in the interior and the reinforcing material filled in the core material , it is possible to prevent the vehicle from being damaged by the contact and to reduce the amount of bending while maintaining the elasticity. Further, the core material can be made robust. Moreover, the gravity center position of the open / close bar for the circuit breaker can be brought close to the base end.

Further, according to the present invention, there is provided an open / close bar for a circuit breaker for preventing the vehicle from passing through the circuit breaker, the tubular core material, a buffer material sheathed on the core material, and filling the core material Since the core material is made of paper and the release film is disposed on the inner periphery, the vehicle is prevented from being damaged by contact and the amount of flexure is reduced while maintaining elasticity. Can do. Further, it can be easily separated from the reinforcing material when discarded, and can be used again by recycling.

  In the present invention, since the reinforcing material is urethane foam, it is possible to maintain both strength and fastness.

  Further, in the present invention, the reinforcing core material is made of paper and formed thin toward the tip, so that workability when filling the reinforcing material is improved and foaming is smoothed to prevent the formation of nests. be able to.

  In the present invention, since the core material is made of paper and has a release film disposed on the inner periphery, it can be easily separated from the urethane foam when discarded, and can be used again by recycling. Moreover, when attached to a circuit breaker by a protective film and used, it can be prevented from getting wet due to rain or the like.

Moreover, since it is made of paper, it is possible to prevent the vehicle from being damaged by contact and to prevent deformation due to bending while maintaining elasticity. Moreover, by achieving weight reduction, the lifetime of the whole circuit breaker can be extended and the cost for maintenance and repair can be suppressed. Furthermore, since it is made of paper, it can be recycled, and the global environment can be well maintained.

  In the circuit breaker opening / closing bar, it is composed of a cylindrical core material, a cushioning material sheathed on the core material, and a reinforcing material embedded in the core material, thereby preventing vehicle damage when the vehicle contacts. At the same time, the object of reducing the amount of deflection while maintaining elasticity can be achieved. It can also be recycled and reused.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment. FIG. 1 is a perspective view of a main part showing a base end of an opening / closing bar for a circuit breaker according to the present invention, FIG. 2 is a front view of a part of the opening / closing bar for a circuit breaker according to the present invention, and FIG. FIG. Here, the breaker opening / closing bar 10 prevents the vehicle from passing through the breaker, and includes a rectangular tube-shaped core member 11, a buffer material 12 sheathed on the core member 11, The reinforcing material 13 is provided in the core material 11. Here, as the reinforcing material 13, for example, a foamed and cured foamed urethane or the like can be optimally used.

  The core material 11 includes a protective film 14 mounted on the surface thereof, an internally provided reinforcing core material 15, and a reinforcing material 13 filled in the core material. The core material 11 is formed of cardboard in a rectangular tube shape, and a non-permeable protective film 14 for avoiding rainwater is attached to the surface of the core material 11. The core material 11 includes a reinforcing core material 15 with a release film 16 made of polypropylene or the like interposed therebetween.

  The reinforcing core 15 is made of cardboard as shown in FIGS. 1, 3, and 5 and has an angle shape in this embodiment. In addition, each end is in contact with the inner periphery of the core material 11. As shown in the drawing, the reinforcing core material 15 is housed in the core material 11 so that the right angle portion 15a of the angle material faces the front or back direction of the circuit breaker opening / closing bar 10. Further, the reinforcing core member 15 is formed thin (tapered) toward the tip.

  In addition, as shown in FIG. 2, the reinforcing core member 15 is inserted from the base end portion of the core member 11 to a predetermined length and is not at the distal end portion. Thus, by installing the reinforcing core member 15 only in the vicinity of the base end portion of the core member 11, the position of the center of gravity of the circuit breaker opening / closing bar 10 can be brought closer to the base end portion side. As shown in FIGS. 2 and 3, an escape hole 17 penetrating both the core material 11 and the release film 16 is formed in the vicinity of the tip of the core material 11.

  As the buffer material 12, various foams such as polyethylene, urethane, and styrene can be used. Further, a protective film 20 such as a stripe pattern may be attached to the surface of the buffer material 12 in order to improve the visibility.

  When the breaker opening / closing bar 10 of the present invention configured as described above is used in the breaker 18 as shown in FIG. 7, a quick opening / closing operation is possible, and even if the vehicle enters at high speed, damage to the vehicle due to contact can be prevented. In addition to preventing, the amount of deflection can be reduced while maintaining elasticity. Moreover, by using paper to achieve weight reduction, the lifetime of the entire circuit breaker can be extended, and the cost for maintenance and repair can be suppressed. Furthermore, since it is made of paper, it can be recycled, and the global environment can be well maintained.

  FIG. 6 is a longitudinal sectional view showing another embodiment of the open / close bar for a circuit breaker according to the present invention. In this embodiment, the reinforcing core member 19 has a rectangular tube shape and is attached to the inner periphery of the core member 11 having the release film 16 disposed on the inner periphery. The reinforcing material 13 is made by foaming and curing foamed urethane or the like inside the core material thus configured in a sealed state.

  Even when configured as described above, by using paper for the core material and the reinforcing core material, weight reduction can be achieved, the life of the entire circuit breaker can be extended, and the cost for maintenance and repair can be suppressed. Further, since it is made of paper, it can be recycled.

  The present invention is not limited to the above-described embodiments, and various design changes can be made based on the description of the scope of claims.

FIG. 1 is a perspective view of a main part showing a proximal end of an open / close bar for a circuit breaker according to the present invention. FIG. 2 is a front view in which a part of the breaker opening / closing bar is cut. FIG. 3 is an exploded perspective view of the open / close bar for the circuit breaker. FIG. 4 is a perspective view of a core material used in the open / close bar for the circuit breaker. FIG. 5 is a longitudinal cross-sectional view of a core material used in the open / close bar for the circuit breaker. FIG. 6: is a longitudinal cross-sectional view which shows the other Example of the core material used for the open / close bar for the same circuit breaker. FIG. 7 is an explanatory view showing a usage state of the open / close bar for the circuit breaker.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Opening / closing bar for circuit breaker 11 Core material 12 Buffer material 13 Reinforcing material 14 Protective film 15 Reinforcing core material 15a Right angle part 16 Release film 17 Relief hole 18 Breaker 19 Reinforcing core material 20 Protective film

Claims (5)

An open / close bar for a circuit breaker that prevents the vehicle from passing through the circuit breaker, a cylindrical core material having a protective film on the surface, a buffer material that is externally attached to the core material, and the core material An open / close bar for a circuit breaker comprising an internally provided reinforcing core material and a reinforcing material filled in the core material. An open / close bar for a circuit breaker that prevents the vehicle from passing through the circuit breaker from a cylindrical core material, a cushioning material sheathed on the core material, and a reinforcing material filled in the core material Become
The core material, breaker opening and closing bars you characterized in that release layer circumferentially in be made of paper is arranged.   The open / close bar for a circuit breaker according to claim 1, wherein the reinforcing material is foamed urethane. The breaker opening and closing bar according to claim 1 , wherein the reinforcing core member is made of paper and is formed thin toward the tip. 2. The circuit breaker opening / closing bar according to claim 1 , wherein the core is made of paper and has a release film disposed on an inner periphery thereof.

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