Vehicle forced stop device

Abstract

Provided is a vehicle forced stop device that is provided with casters for transportation and includes a stopper that prevents the wheels from rolling even when the casters are in contact with the ground. 【Solution means】 A vehicle forced stop device 1 that forcibly stops a vehicle when the vehicle collides, including a base 3 provided with a friction member 10 in contact with the road surface on the back surface, a swing frame 4 pivotally supported above the base 3 so as to be swingable, a vehicle stop means 5 provided upward at the front portion of the swing frame 4 and contacted by the front portion of the vehicle during a collision, a vehicle mounting means 8 that contacts the bottom of the traveling vehicle S, a caster 40 for transportation disposed in the front portion of the base 3 with the wheels close to the road surface, and a stopper that suppresses the rotation of the wheels by contacting the wheels of the caster 40. In a state where the stopper is effective, the caster does not rotate even when it is in contact with the ground, so that the vehicle forced stop device is not moved even when the vehicle collides and the caster is in contact with the ground.

Description

Technical Field

[0001] The present invention relates to a vehicle forced stop device.

Background Art

[0002] When road construction is carried out, it is necessary to prevent vehicles from entering the lane where the construction is being carried out and ensure the safety of the work area. For example, there is a vehicle forced stop device as described in Patent Document 1. Vehicle forced stop devices come in various forms, from small ones to relatively heavy large ones. In some cases, casters may be provided to facilitate the transportation and movement of heavy large devices.

[0003] The casters attached to the vehicle forced stop device are provided at positions that do not normally touch the road surface. However, when the side opposite to the side where the casters are provided is lifted, the wheels of the casters come into contact with the ground, making it easier to transport.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The casters arranged as described above do not touch the road surface when the vehicle forced stop device, which has not been collided by a vehicle, is in a stationary state, and thus do not affect the movement of the vehicle forced stop device. However, when the vehicle collides, the vehicle forced stop device may tilt and the casters may come into contact with the ground. In some cases, the wheels of the casters may roll instantaneously and move more than necessary. The present invention has been devised in view of the above circumstances, and is a vehicle forced stop device provided with casters for transportation. The problem to be solved is to provide a vehicle forced stop device equipped with a stopper that prevents the wheels of the casters from rolling even when the casters come into contact with the ground due to a collision of the vehicle.

Means for Solving the Problem

[0006] In view of the above problems, the present invention has the following configuration. That is, A vehicle forced stop device that forcibly stops a vehicle when the moving vehicle collides, A base provided with a friction member in contact with the road surface on the back surface, A swing frame pivotally supported above the base so as to be swingable, Vehicle stopping means provided upward at the front part of the swing frame and in contact with the front part of the vehicle at the time of collision, Vehicle mounting means for contacting the bottom of the moving vehicle, Transport casters arranged with the wheels close to the road surface at the front part of the base, A vehicle forced stop device characterized in that a stopper is provided to suppress the rotation of the wheel by contacting the wheel of the caster.

[0007] Further, the present invention has the following configuration in the above vehicle forced stop device. That is, The stopper is a toggle clamp.

Effect of the Invention

[0008] The vehicle forced stop device according to the present invention absorbs the kinetic energy of a vehicle attempting to move forward by the frictional force with the road surface to stop the vehicle. And it is a device that prevents the vehicle from moving forward by colliding with the vehicle, and since it has a strength that will not be destroyed by the collision of the vehicle, it has a size and weight that can receive the collision of the vehicle. For this reason, in order to be carried by one person, casters are provided which roll on the ground when the vehicle forced stop device is laid down. However, when the vehicle collides and the casters come into contact with the ground instantaneously while tilting, there is a possibility that the casters will move the vehicle forced stop device. The vehicle forced stop device according to the present invention has a stopper that directly presses the wheels of the casters by a toggle clamp. In the state where the stopper is effective, the casters do not rotate even when they come into contact with the ground. Therefore, even when the vehicle collides and the casters come into contact with the ground, it has the effect of not moving the vehicle forced stop device.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0010] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the appearance of the vehicle forced stop device 1. Further, FIG. 2 shows an external view of the vehicle forced stop device 1 seen from the side. The vehicle forced stop device 1 is configured by connecting two stop units 2 (2a, 2b) having the same function. The number of stop units 2 to be connected is an example, but it goes without saying that two or more can be connected.

[0011] The stop units 2a and 2b of the vehicle forced stop device 1 each have a plate-shaped base 3 that contacts the road surface in the frontward portion. A plate-shaped friction member 10 formed by an elastic member is attached to the back surface of the base 3 so as to generate a large frictional force with the road surface. Further, the base 3 has two mounting bases 11 (11a, 11b) formed of a pair of opposing plates erected at intervals on the upper surface. The mounting bases 11a, 11b are arranged in parallel at intervals at both ends of the rectangular plate-shaped portion constituting the base 3. The mounting bases 11a, 11b have two support plates arranged opposite to each other, and the support plates have bearings 12 for pivotally supporting the swing frame 4 at the upper rear part. The swing frame 4 is configured to be swingable between the opposing support plates.

[0012] The swing frame 4 is formed as a structure having a pair of structural walls 20a, 20b facing each other at intervals, has a hole 21 pivotally supported by the bearing 12 of the mounting base 11, and is configured to be swingable in the front-rear direction along the inner surface of the opposing plate provided with the bearing 12. A vehicle stopping means 5 provided upward is provided at the front part of the swing frame 4. The vehicle stopping means 5 is composed of a collision plate 6 provided so as to face the front surface of a traveling vehicle and two arm frames 7 (7a, 7b) for supporting the collision plate 6. The arm frame 7 is attached to the tip of the swing frame 4, and when a vehicle collides with the collision plate 6, the swing frame 4 rotates together with the arm frame 7. In addition, a coil spring 30 is provided between the lower surface in front of the swing frame 4 and the mounting base 11, generates a resistance force against the forward tilt of the swing frame 4, and has an effect of returning the forward-tilted swing frame 4 to its original position.

[0013] Further, a hole 22 forming a bearing is provided behind the swing frame 4, and is configured to rotatably support a shaft 31 provided near approximately the middle of the vehicle boarding means 8. The vehicle boarding means 8 is configured as a long member formed of a bar-shaped section steel, and a grounding member 32 that contacts the road surface is provided at one end on the rear side, and is arranged to incline obliquely upward from the grounding member 32 toward the front. The vehicle boarding means 8 that inclines upward has an action of entering so as to bite between the bottom of the vehicle and the road surface when the vehicle intrudes, and lifting the front portion of the vehicle upward. The vehicle boarding means 8 is arranged in parallel in two for each of the stop units 2a and 2b.

[0014] A mounting member 35 is provided at one end on the front side of each vehicle boarding means 8. Each mounting member 35 has a hole through which an interlocking member 33 formed of a steel pipe is inserted, and by inserting the interlocking member 33 into the hole of each vehicle boarding means 8, the tip portions of the vehicle boarding means 8 are connected. Further, a spring 34 that biases upward is provided on the lower surface of the mounting member 35, and biases the tip of the lowered vehicle boarding means 8 upward. The interlocking member 33 is configured to move up and down within a range along the inner surface of a guide 37 formed as a long hole in the swing frame 4.

[0015] The vehicle forced stop device 1 according to the present embodiment is formed by connecting two stop units 2a and 2b each having one vehicle stopping means 5 provided on one base 3. The connection between the stop units 2a and 2b is performed by a connecting pipe 36 attached so as to penetrate each mounting base 11. Further, since the mounting members 35 of each of the stop units 2a and 2b are connected by the interlocking member 33 which is a single steel pipe as described above, when the vehicle gets on the vehicle boarding means 8 and the mounting member 35 descends, the other mounting members 35 are also configured to descend in conjunction.

[0016] FIG. 3 is an explanatory diagram showing the operation of the vehicle forced stop device 1 when the vehicle collides. FIG. 3(a) shows a state where the front bottom of the vehicle S contacts the upper surface of the vehicle mounting means 8, and FIG. 3(b) shows a state where the vehicle S further advances from the state shown in FIG. 3(a) and contacts the vehicle stopping means 5. In a state where the front bottom of the vehicle S contacts the upper surface of the vehicle mounting means 8, the spring 34 that supported the front part of the vehicle mounting means 8 is pressed and bends, rotates around the bending shaft 31, and the tip descends. The descending range of the tip is a range restricted by the guide 37 provided as a long hole in the swing frame 4. The state where the tip of the vehicle mounting means 8 of the vehicle S has descended is a state where the vehicle mounting means 8 continues to contact the bottom of the vehicle S with an elastic force, and a state is maintained in which it is difficult to release the engagement with the vehicle S.

[0017] When the vehicle S further advances from the state shown in FIG. 3(a), while getting on the vehicle mounting means 8, the front part of the vehicle S collides with the vehicle stopping means 5 as shown in FIG. 3(b). Then, the swing frame 4 rotates forward, and accordingly, the rear end of the vehicle mounting means 8 also jumps up, making it difficult for the vehicle S to come off. Also, the front wheels of the vehicle S are in a floating state, and the frictional force between the base 3 of the vehicle forced stop device 1 and the road surface becomes a braking force that hinders the progress of the vehicle S and stops the vehicle S.

[0018] The vehicle forced stop device 1 described above is formed using high-rigidity steel materials and has a size and weight that cannot be lifted by one operator. Therefore, a transport caster 40 for use during transport is attached. In the case of the vehicle forced stop device 1, the caster 40 is provided at the front part of the base in a state where the wheels in contact with the road surface are in a state of being slightly spaced apart from the road surface. Also, a caster 41 is provided on the back side of the collision plate, and by tilting the entire vehicle forced stop device 1, each caster 40, 41 can be brought into contact with the road surface, and thus it can be easily transported even by one person.

[0019] The caster 40 provided at the front part of the base is provided with a stopper 42 that inhibits rotation by an operation of bringing it into contact with the wheel. The stopper 42 used in this embodiment is a toggle clamp, which has a function of applying a load to the member that comes into contact with the wheel of the caster 40 by rotating the lever to inhibit rotation and maintaining the state in which the load is applied. The toggle clamp is generally used as an industrial product.

[0020] Since the caster 40 attached to the base 3 is provided close to the road surface, when the posture of the vehicle forced stop device 1 is tilted by the impact of a vehicle collision, it may come into contact with the road surface. When the caster 40 whose wheels can rotate freely comes into contact with the road surface, it promotes the movement of the vehicle forced stop device 1 and reduces the effect of vehicle stopping. For this reason, in this embodiment, the stopper 42 can prevent the wheels of the caster 40 from rotating so that the wheels do not rotate even when the caster 40 comes into contact with the road surface.

[0021] Also, when transporting the vehicle forced stop device 1 using the casters 40 and 41, it is necessary to tilt the vehicle forced stop device 1 forward. When tilting the vehicle forced stop device 1 forward, the caster 40 is grounded and used as a fulcrum, but if the wheels of the caster 40 can rotate freely, there is a possibility of moving while remaining in the tilted posture, resulting in an unstable state. However, by fixing the caster 40 using the stopper 42, it is possible to prevent movement during tilting, and the vehicle forced stop device 1 can be tilted safely.

Industrial Applicability

[0022] The present invention can be used for a vehicle forced stop device that prevents a vehicle from entering a work area such as a road construction site.

Explanation of Signs

[0024] 1 Vehicle forced stop device 2(2a, 2b) Stop unit 3 Base 4 Swing frame 5 Vehicle stopping means 6 Collision plate 7(7a, 7b) Arm frame 8 Vehicle boarding means 10 Friction member 11(11a, 11b) Mounting base 12 Bearing 20a, 20b Structural wall 21 Hole 22 Hole 30 Coil spring 31 Shaft 32 Grounding member 33 Linkage member 34 Spring 35 Mounting member 36 Connecting pipe 37 Guide 40 Caster 42 Stopper (toggle clamp) Vehicle S

Claims

1. A vehicle forcible stopping device that forcibly stops a vehicle by causing a collision with a traveling vehicle, A base having a friction member on its back surface that comes into contact with the road surface; a swing frame pivotally supported above the base so as to be swingable; a vehicle stop means provided upwardly on a front portion of the swing frame with which the front portion of the vehicle comes into contact in the event of a collision; a vehicle climbing means for contacting the bottom of a traveling vehicle; A caster for transportation arranged at a front portion of the base with the wheels close to a road surface; A vehicle forced stop device comprising a stopper that is brought into contact with the wheel of the caster to inhibit the wheel from rotating.

2. 2. The vehicle forced stop device according to claim 1, wherein the stopper is a toggle clamp.

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