JPH051471Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a safety fence for preventing overturning of a wheeled rack container in a van-type vehicle equipped with a tailgate lifter at the rear of the loading platform.

(Prior Art) Conventionally, a wheeled rack container mounted on the loading platform of a van-type vehicle has been horizontally mounted on the rear of the van-type vehicle via a parallelogram link mechanism, as disclosed in Japanese Utility Model Publication No. 55-8669. When unloading using a tailgate lifter that is connected so that it can be raised and lowered while maintaining After moving it onto the board, the tailgate lifter was lowered to unload the cargo.

At this time, as a safety measure to prevent the wheeled rack container from falling during movement, the caster stopper of the wheeled rack container is placed close to the free end of the gate plate, as disclosed in Japanese Utility Model Application No. 162337/1983. It is known that it was attached to

With such conventional equipment, if the wheeled rack container is pushed too forcefully, the wheeled rack container a tends to fall over, as shown in Figures 10 and 11, and in the worst case, it may fall to the ground. There was a risk of personal injury. It was especially dangerous when the load in wheeled rack container a had its center of gravity at the top.

(Problem to be solved by the invention) The present invention has been devised in view of the problems of the prior art described above.While the wheeled rack container a is on the gate plate 4, it is surrounded by a fence and the wheeled rack container a is To provide a safety fence for preventing overturning of a wheeled rack container, which prevents the wheeled rack container from overturning and does not interfere with work when the wheeled rack container descends to the ground.

(Solution by invention) In a van-type vehicle equipped with a tailgate lifter having a gate plate 4 that moves up and down between the ground surface and the floor surface 3 of the vehicle at the loading/unloading opening of a wheeled rack container a, A pair of L-shaped fence bodies 6, 6 that are removable from the receiving member 8 fixed to the corner post 2, and a chain 7 stretched between the left and right fence bodies.
The mounting position of the safety fence A on the corner post is such that while the wheeled rack container a is on the gate plate 4, the top thereof protrudes above the safety fence A; The height is such that when the lower surface of the plate 4 touches the ground surface, the top of the wheeled rack container a does not interfere with the safety fence A.

(Example) Fig. 1 shows a case where a safety fence for preventing fall (hereinafter referred to as "safety fence A") of the present invention is attached to the rear opening of a van-type vehicle. 1 is a van type vehicle. Reference numeral 2 denotes a pair of left and right corner posts at the rear, and the safety fence A is attached to the corner posts. 3 is the cargo bed floor of the van type vehicle 1, and after positioning the gate plate 4 flush with this,
The wheeled rack container a is transferred onto the gate plate 4.

Now, as shown in Fig. 2, the safety fence A consists of a fence body 6 made of L-shaped square timber and a detachable chain 7. Reference numeral 8 denotes a receiving member for the fence main body 6, and as shown in FIG. 3, a short hat-shaped steel member is fixed to the left and right corner posts 2 by welding or the like. During cargo handling work, the short side of the L-shape of the fence body 6 is inserted into the receiving member 8 from above, and the long side of the L-shape is used with the long side extending horizontally to the rear as shown in FIG. A chain 7 is then attached between the ends of the fence body 6. The horizontal direction of the wheeled rack container a is the fence body 6.
Also, chain 7 prevents it from falling backwards.

When the safety fence A is not in use, that is, when the gate plate 4 is stored, the gate plate 4 is stored upright parallel to the rear opening of the van type vehicle. At that time, the fence body 6 of the safety fence A is as shown in FIG. It is stored as shown by the two-dot chain line, and the tip is prevented from rotating with a pin 5. To achieve this state, the fence main body 6 is once pulled upward from the receiving member 8, and then the fence main body 6 is turned inward by 90 degrees and inserted into the receiving member 8 again.

FIG. 4 shows another embodiment of the safety fence A, in which the fence body 6' is formed of a round pipe into an L shape.
When storing the fence body 6', there is no need to pull it out, and it can be rotated 90 degrees around the bearing part 9 parallel to the opening and stored.

The structure for maintaining the position of the fence body 6' during storage and use is as shown in FIGS. 5 and 6. A downward U-shaped elongated hole 10 is bored in the receiving member 9 of the fence body 6'. On the other hand, the fence body 6'
A protrusion 11 for preventing rotation is fixed to the side. During use, the protrusion 11 is inserted into the left vertically elongated hole 10a. When storing the fence body 6' by turning it 90 degrees, lift the protrusion 11 on the side of the fence body 6' slightly upward until it reaches the horizontal hole 10c, then rotate it as it is, and insert the protrusion 11 into the other vertical hole 10b. When dropped, the fence body 6' can be held in the pivoted storage position.

FIG. 7 shows an example in which the safety fence A of the present invention is attached to a van-type vehicle with double doors. In this case, the receiving member 12 of the fence body 6'' is fixed to the cargo compartment side wall inside the corner post 2 (Fig. 7).The receiving member 12 has a hole 13 into which the fence body 6'' is inserted. 14 are provided, and when the safety fence A is used, the fence body 6'' is inserted into the hole 13 on the tip side, and when it is stored, the fence body 6'' is inserted into the hole 14 closer to the wall. When it is used, it is inserted and stored facing exactly the opposite direction from when it is used.

Fig. 10 shows the installation height positions of the fence bodies 6, 6', 6''.In other words, the installation height position H from the ground is when the lower surface of the gate plate 4 is in contact with the ground surface. The height shall be such that the top of the wheeled rack container a does not interfere with the chain 7. In other words, in Fig. 10, the upper part a' of the wheeled rack container a is set at a slightly lower position than the chain 7.This allows the wheeled rack container a to be operated on the ground. does not pose any problem.

(Effects) By installing the safety fence A of the present invention, it is no longer necessary to provide a caster stopper etc. on the gate plate 4, and therefore mechanical failures and operational errors of the caster stopper etc. are eliminated. Moreover, the upper surface of the gate plate 4 can be kept smooth, and the wheeled rack container a can now be moved smoothly. Furthermore, since the wheeled rack container a is surrounded by safety fences on three sides, that is, both sides and the rear, to prevent it from falling over, the worker can now work on the gate plate 4 with peace of mind.

[Brief explanation of the drawing]

FIG. 1 shows an example in which a safety fence is attached to a van-type vehicle with a shutter, and is a perspective view of the rear of the vehicle. Figure 2 is a perspective view of the fence body. FIG. 3 is a perspective view of the receiving material. Fourth
The figure is a perspective view of a second embodiment of the safety fence. Figure 5 is a detailed view of the bearing part of the fence body. FIG. 6 is a view taken along the arrow in FIG. Figure 7 shows the third embodiment of the safety fence. FIG. 8 is a view taken along the arrow in FIG. FIG. 9 is a plan view of the receiving member 12. FIG. 10 is an explanatory diagram of the installation height position of the safety fence. FIGS. 11 and 12 show how conventional wheeled containers are handled. In the diagram: A... safety fence, a... wheeled rack container, 1... van type vehicle, 2... corner pillar, 3...
...Loading floor (of van-type vehicle), 4...Gate plate, 5
... Pin, 6, 6', 6" ... Fence body, 7 ... Chain, 8 ... Reception member (of the fence body), 9 ... Bearing, 10 ... Elongated hole, 11 ... Protrusion, 12 ... ...Receiving member, 13... hole, 14... hole.

Claims (1)

[Scope of utility model registration request] In a van-type vehicle equipped with a tailgate lifter having a gate plate 4 that moves up and down between the ground surface and the floor surface 3 of the vehicle at the loading/unloading opening of a wheeled rack container a, the tailgate lifter is fixed to the corner pillars 2 on both sides of the opening. A pair of L-shaped fence bodies 6, 6 that can be attached to and detached from the receiving member 8, and a chain 7 stretched between the left and right fence bodies.
The mounting position of the safety fence A on the corner post is such that while the wheeled rack container a is on the gate plate 4, its top protrudes above the safety fence A; A safety fence for preventing a wheeled rack container from overturning in a vehicle equipped with a tailgate lifter, characterized in that the top of the wheeled rack container a does not interfere with the safety fence A when the lower surface of the plate 4 contacts the ground surface. .