JPS5940391Y2 - lift plate - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a simple lift plate with an X-shaped link used for lifting and lowering loads.

Generally, large-sized equipment such as power gates, forklifts, and cranes are used as loading equipment.

Although these are suitable for loading and unloading heavy items onto trucks, etc., for example, when loading and unloading relatively lightweight items that require loading machinery and equipment into light vans, etc., there are issues such as operational costs. more unsuitable for use.

2. Description of the Related Art Conventionally, various types of cargo handling equipment have been known that are configured to be relatively easily movable up and down using X-shaped links.

However, in the existing ones, the height of the upper plate on which the cargo is placed is generally relatively high when lowered.

Therefore, for example, it is difficult for one worker to lift a set of 100 kg or more from the ground onto the upper board.

The object of the present invention is to provide a lift plate which is a cargo handling device which is constructed relatively simply using this X-shaped link, and which is constructed so that the plane height during downward movement can be made as low as possible.

That is, in the lift plate according to the present invention, the upper plate,
An X-shaped link with one end of the bar on one side as a free sliding end is installed between the boards, and the X-shaped link can be moved up and down like a pantograph using a threaded rod placed horizontally on the board side. It is configured to be equipped with a wedge-shaped piece that raises the axis of the link bar to a certain position when the X-shaped link is raised.

With this lift plate, not only can the upper plate be raised using only the screw mechanism, but it can also be raised to a fixed position using a wedge-shaped piece, so there is no strain on the screw mechanism, and the screw rod is placed horizontally on the board side. Since the X-shaped links are telescopically operated, the upper plate can be lowered to an extremely low position.

This will be explained below based on the illustrated embodiments.

In the illustrated device, an X-shaped link 3 is installed between an upper plate 1 on which cargo and the like are placed and a base plate 2.

The upper plate 1 may be simply a flat plate, or the side facing the loading/unloading position may be formed diagonally so that the loading/unloading can be carried out along the oblique side. .

The substrate 2 can be formed of a flat plate like the upper plate, or a quadrilateral frame can also be used.

One end of the X-shaped link 3 on the right side in FIG. 1 is pivotally fixed to the upper plate 1 and the base plate 2 by a shaft 5.6 via a central pivot 4.

One end of the left bar is a free end so that it can slide into contact with the upper plate 1 and the substrate 2, respectively, and each end is provided with rollers, collars, etc. 7.
, 8 allows smooth sliding movement.

As shown in Figure 1, a pair of X-shaped linkers are arranged at the front and rear, and a horizontal shaft 9 extending between the front and rear is attached to one end of the lower bar on the free end side of the linker. ing.

A butterfly piece 10 having a screw hole formed in a direction perpendicular to the horizontal axis 9 is pivotally supported approximately in the middle of the horizontal axis.

A threaded rod 11 is inserted into the butterfly piece 10 by screwing it into a screw hole.The threaded rod 11 is attached to the link bar 3.
It is located parallel to the direction in which the shaft is arranged, and is screwed in and unscrewed by a handle (not shown) provided at the end of the shaft.

A wedge-shaped piece 12 for prying up the pivot 4 is attached to the tip of the threaded rod 11 located below the X-shaped link pivot 4.

The wedge-shaped piece is formed with an oblique side 12a that slides into contact with the pivot 4, and the pivot 4 is moved upward along this oblique side 12a.

Further, the wedge-shaped piece 12 is loosely inserted on the axis of the threaded rod 11,
It is fixed so that it cannot be removed by a key 13 or the like to which a threaded rod is attached.

Therefore, this wedge-shaped piece moves from side to side on the plane of the base plate 2 as the threaded rod 11 is screwed into or unscrewed from the butterfly piece 10.

The position movement is performed between the butterfly piece 10 and the wedge-shaped piece 12 on the base plate 2.
The tank bottom is regulated by a stopper piece 14 protruding from the plane of the tank.

The lift plate that is placed at the bottom of the tank is in a flat state as shown in the second figure when not in use.

When in use, the threaded rod 11 is screwed into the butterfly piece 10 by operating the handle.

Until a certain distance at the beginning of screwing, the threaded rod itself moves to the left in the drawing and does not exhibit the effect of moving the butterfly piece 10 to the right in the drawing.

As the threaded rod 11 moves to the left in the drawing, the wedge-shaped piece 12 disposed at its tip also moves in the same direction, prying up the pivot 4 of the linker 3 that is in contact with the oblique side 12a (fourth
(see figure).

In this state, the wedge-shaped piece 12 is locked by the stopper piece 14, so that it does not move further to the left in the drawing.

Therefore, by operating the handle, the threaded rod 11 is further inserted into the butterfly piece 10.
When screwed in, the butterfly piece 10 moves to the right in the drawing on the axis of the threaded rod 11 without the threaded rod moving to the left in the drawing.

Due to this movement, the free end side of the linker 3 also moves in the same direction, so that the linker 3 performs an elongating operation (see FIG. 1).

On the other hand, during the downward movement, if the threaded rod 11 is unscrewed in the opposite direction, the butterfly piece 10 will gradually move to the left in the drawing, and the free end side of the linker 3 will move in the same direction. , the linker 3 can perform a reduction operation.

In addition, in order to allow the upper plate 1 to descend to the maximum limit, a notch 1 is provided in the flange portion of the upper plate 1 and the base plate 2 where the linker 4 comes into contact.
a, 2a can be provided.

Further, this link plate can be removably installed on the loading platform of a vehicle using a mounting bracket, and can be placed on the rear of the cargo placed on the loading platform.

As described above, according to the lift plate according to the present invention, the lower limit stop position of the upper plate can be set low with an extremely simple mechanism, and loading or unloading at the lower limit position is facilitated.

In addition, it is cheaper than power gates, cranes, etc., and is suitable for medium-heavy cargo handling work, and it is also easy to use not only for cargo handling work, but also for center alignment for fitting holes in certain parts of machines. Available.

[Brief explanation of the drawing]

Fig. 1 is a side view of the lift plate according to the present invention in the raised state, Fig. 2 is a side view of the same in the lowered state, and Fig. 3 is a plan view of the same.
FIG. 4 is a side view of the lift plate on its way up. 1... Top plate, 2... Substrate, 3...
...X-shaped link, 4...Link axis, 10
...Butterfly piece, 11...Threaded rod, 12...
... Wedge-shaped piece, 14... Stopper piece.

Claims (1)

[Scope of utility model registration request] An X-shaped link is placed between the top plate on which the cargo is placed, and the board, and one end of the bar located on the left or right side is pivoted to the top board and the board, respectively, via the center pivot point of the link bar. At the same time, one end of the bar on the other side is made a free end that can slide freely against the upper board, and a butterfly piece with a screw hole is attached and fixed to one end of the lower bar of the free end, and the butterfly is fixed. A wedge-shaped piece in which a threaded rod placed parallel to the link bar is screwed into the threaded hole of the piece, and the tip of the threaded rod's shaft located below the center pivot point of the link bar has an oblique side that pushes the bar pivot slightly upward. A lift plate is characterized in that a stopper piece for locking the wedge-shaped piece is protruded on a base plate between the wedge-shaped piece and the butterfly piece.