JP4373302B2 - Flat carriage - Google Patents

Description

The present invention relates to a flat carriage that can fold up pillars that are erected at four corners of a cargo receiving platform, and can use the cargo receiving platform as a flat bearing surface.

Conventionally, carts that transport long loads such as long molds and rods have pipes or square tube columns upright at the four corners of the load receiving table, and the long load is placed between the columns so that it protrudes from the load receiving table. The struts on both sides play a role in preventing cargo collapse.
When transporting an object larger than the load receiving table or when not in use, the column is pulled out and removed.
JP 2003-67965 A

The method of removing the support column and transporting it along with the carriage has a risk of losing or damaging the support column at the time of conveyance, and it is troublesome to fix to the flat carriage each time.
In addition, in the case where the support column is of a folding type, the folded support column becomes convex on the load receiving table, and a flat load receiving surface cannot be realized.

Therefore, in the present invention, the support column is folded along the side surface of the load receiving table, and the load receiving surface and the upper surface of the folded support column are flush with each other in the folded state. As a result, a flat receiving surface can be realized.
For that purpose, projecting column support parts projecting to the opposite opposite sides of the four corners of the load receiving table, respectively, so that the column ends inserted into the support column holding part are brought into contact with each other along both side surfaces of the load receiving table. And the upper surface of the folded column was flush with the outside of both sides of the loading platform.

Specifically, a long slot is formed in the vertical direction on the side of the load receiving stand of the support column and the outer surface facing it, while a pin that protrudes in the horizontal direction is provided at the bottom of the support column that is inserted into the support column. The pin was loosely fitted into the slot. Therefore, when the pillar is pulled up, the pillar pin slides in the slot and reaches the upper end of the slot, where it is rotated and tilted so that the ends of the pillars facing each other are in contact with each other. Fold along the outer side of the column and catch the tip of the column with a stop piece protruding from the center of the side of the load receiving platform. Fold the other column in the same way. By cutting off the upper part of the side wall on the folding side of the column of the column holding unit, the column can be bent horizontally and flush with the load receiving table.

According to the present invention, the support can be folded and always transported together with the flat carriage, and a flat receiving platform in which the receiving platform surface and the supporting column are in the same plane can be formed, and the receiving area can be expanded to the portion of the supporting column. Therefore, a larger load can be transported stably.
Needless to say, there is no need to fix the removed column to the flat carriage as in the prior art, and the possibility of loss or damage during transportation.

The present invention will be described with reference to embodiments shown in the drawings.
Fig. 1 shows the flat carriage with the column upright.
The load receiving platform 1 is composed of a square frame 1a and a reinforcing frame 1b that is provided between the frame frames 1a. A support holder 2 is provided so as to protrude outward from the four corners.
In this embodiment, the support holder 2 has a rectangular tube shape, and is suspended from the load receiving table 1 so that the upper end 2 a is flush with the upper surface of the load receiving table 1. The lower end 2b of the support column holding part is stopped above the ground contact surface of the caster 3 attached to the bottom of the load receiving platform 1.

Further, as shown in FIG. 2, the support column holding part 2 has a column support part 1 on the side opposite to the support column holding part, that is, the upper end 2a on the side of the support column holding part adjacent to the outer frame frame 1a. Is cut off by the length of the width (cutout portion 4).
Further, a slot 6 that is long in the vertical direction is formed on the inner side surface that contacts the side surface of the load receiving platform 1 and the outer side surface of the support column holder 2 that faces this surface.

A pin 7 is projected in the horizontal direction below the column 5, and the pin 7 is loosely fitted in the groove 6 in a state where the column 5 is inserted into the column holding part 2. Accordingly, the pin 7 slides and rises in the slot 6 as the column 5 is pulled up, stops at the upper end of the slot, and restricts the pull-up height of the column 5. At this upper limit position, the column 6 can be folded in the direction having the cut-off portion 4 of the column holding unit 2 and folded along the outer side surface of the load receiving table.

The tip 5a of the column 5 rotates about the pin 7 so that the tips of the columns facing each other on one side of the load receiving table 1 come into contact with each other, and stops at a stop piece 8 that protrudes horizontally. The lower end of the support column 5 is preferably cut off on the outer side of the rotation with the pin 7 as an axis so that the support column 2 can be rotated in the cylinder without any trouble during rotation during folding.
The folded column 5 has a horizontal height determined by the stop piece 8 and the end 2c having the cut-off portion 4 of the column holding unit 2. Therefore, the height of the end portion 2c of the support column holding portion 2 having the stop piece 8 and the cut-off portion 4 is determined so that the upper surface of the folded support column 5 and the upper surface of the load receiving platform 1 have the same height. To do.

FIG. 3 shows a state in which the column 5 is folded. The support column 5 is folded along both outer side surfaces of the load receiving table 1, and the upper surface of the support column 5 is flush with the upper surface of the load receiving table 1. The front end 5a of the column 5 folded from both sides is stationary on the stop piece 8, and the folded column is firmly fixed by fixing the ends with, for example, a fixture 9 hinged to the stop piece 8. Can be fixed to.
Since the load receiving surface is flat in a state in which the support is folded in this way, the load receiving surface is expanded by the width of the support 5 so that a single object having a larger width can be stably placed and transported.

Furthermore, as shown in FIG. 4, the carts can be stacked and stored because the load receiving platform is flat.
Therefore, a caster receiving recess 10 is formed at the position of the load receiving surface of the load receiving table 1 corresponding to the caster 3. As a result, the cart can be stably stacked and stored when not in use.
In this embodiment, the column has a square cross section. However, the column is not limited to this shape, and may be a column or pipe having a circular cross section. good.

Perspective view of flat cart with uprights Enlarged view of the column holder Perspective view of flat cart with folded column Perspective view showing the stacked state

Explanation of symbols

1 Receiving platform
2 Supporting part 3 Caster 4 Cut-off part 5 Supporting part 6 Groove hole 7 Pin 8 Stop piece 9 Fixing tool 10 Caster accommodation recessed part

Claims (4)

Projecting outwardly on the opposite side surfaces of the four corners of the load receiving table, a cylindrical column holding part is suspended so that its upper end is flush with the upper surface of the load receiving table. The upper ends of the sides facing each other on one side of the load receiving table are cut off by the length of the support column, and the inner side of the support holder holding the side of the load receiving table and the opposite outer surface are long in the vertical direction Slots are respectively formed, the pillars are inserted into the pillar holders, pins protruding in the horizontal direction at the lower part of the pillars are loosely fitted in the groove holes, and pillars on the side surfaces of the load receiving table A stop piece protruding from the top end of the column when the column is folded protrudes, and the height of the stop piece and the end of the cut-off portion of the column holding part are Flat carriage characterized in that it is determined so that the upper surface of the base is the same The flat carriage according to claim 1, wherein the lower end of the support column is cut off at the outer side of rotation so that the support column can be rotated in the cylinder without any trouble during rotation at the time of folding. The flat cart according to claim 1 or 2, wherein a caster receiving recess is formed at a position corresponding to the caster on a load receiving surface of the load receiving table so that the cart can be stably stacked and stored. The flat carriage according to claim 1, wherein a fixture for stopping the ends of the folded support columns is provided at the stop piece position.

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