JP5485627B2 - Transport cart - Google Patents

Description

The present invention relates to a transport cart for placing and transporting a transported object such as a container, and more particularly to a transport cart that can store and store a large number of transport carts in a space-saving manner.

Conventionally, a Z-shaped (or inverted Z-shaped) or N-shaped (or inverted N-shaped) frame in a plan view has been adopted as a transport cart for placing and transporting transported objects such as containers. There are a large number of carriages that can be stored and stored in a space-saving manner by a so-called nesting method (for example, see Patent Documents 1 to 3 below).

That is, for example, in Patent Document 1 below, “the upper Z-shaped frame located at the upper end and formed in a flat or bottom Z-shape, and the lower Z-shaped frame formed in the same shape as the upper Z-shaped frame, A connecting portion that connects the upper and lower Z-shaped frames in the vertical direction, a mounting plate disposed above the upper Z-shaped frame, and a moving wheel disposed on the lower surface of the lower Z-shaped frame. A transport cart provided with the mounting plate pivotably pivoted along one or both side edges of the upper Z-shaped frame, and the mounting plate is placed above the upper Z-shaped frame in a horizontal plane. And a trolley for transportation that is arranged so as to be suspended along the connecting portion.
According to the transport cart disclosed in Patent Document 4, it is possible to store a large number of carts by the nesting method, so that it is possible to store and store in a space-saving manner.

Japanese Utility Model Publication No. 05-080328 JP 09-109895 A JP 2004-130866 A

However, in the transport carts described in Patent Documents 1 to 3, when a person lifts a container or the like placed on the transport cart (especially when the load placed in the container is heavy), one foot is When stepping toward the transport cart, there is a risk of hitting a Z-shaped (or N-shaped) diagonal member.

The present invention has been made to overcome the above-described problems, and it is an object of the present invention to provide a transport carriage that can be stored and stored in a nesting manner and that can ensure safety during work. And It is another object of the present invention to provide a transport cart that can be stored and stored not only by a nesting method but also by a stacking method that stacks vertically.

In order to solve the above-described problems, a transport carriage according to the present invention is provided at a lower part of the transport carriage main body formed by a plurality of pipe members and a plurality of joints connecting the pipe members. A transport carriage provided with a caster section and a receiving section provided at an upper end portion of the transport carriage main body, on which another transport carriage can be placed, wherein the transport carriage main body is arranged in parallel on the left and right A pair of side frames, and a first horizontal pipe and a second horizontal pipe connecting the pair of side frames, and either one of the pair of side frames is arranged in parallel vertically. A horizontal pipe, a vertical column pipe connecting the centers of the horizontal pipes, and a vertical pipe connecting the front ends of the two horizontal pipes. The main pipe and the center of the horizontal pipe And a vertical pipe connecting the rear ends of the two horizontal pipes, the first horizontal pipe connects the left and right vertical support pipes, and the second horizontal pipe. The horizontal pipe is characterized in that the rear end portion of the upper horizontal pipe in the one side frame body is connected to the vicinity of the upper end portion of the vertical support pipe in the other side frame body.

Here, the “center to center” is not limited to the center position, but may be about the center. The pipe member may be a metal pipe or a synthetic resin pipe, or a steel pipe coated with a synthetic resin material may be used. Furthermore, the joint may be made of metal or synthetic resin, and can be appropriately selected and used.

According to the transport carriage according to the present invention, since the receiving section that allows another transport carriage to be placed on the upper end portion of the transport carriage main body is provided, not only the nesting method but also a plurality of transport carriages are stacked in the vertical direction. It can also be stored and stored by a so-called stacking method. Therefore, by combining the nesting method and the stacking method, a large number of transport carts can be stored and stored in a small space.

Further, according to the transport carriage according to the present invention, in the front half of the transport carriage main body, there is no member between the pair of left and right side frames, so that a person puts a container or the like placed on the transport carriage. Even if the foot is stepped on toward the transport cart when lifting or the like, the foot will not hit the transport cart. Therefore, safe work can be secured.

Further, in the transport carriage according to the present invention, a horizontal beam pipe is interposed between the vertical column pipe and the vertical pipe of the side frame, and at least one end of the first horizontal pipe is interposed through the horizontal beam pipe. It may be connected to a vertical support pipe. In this way, the strength of the transport carriage main body is increased and the risk of twisting in the horizontal direction is reduced.

As described above, according to the transport carriage according to the present invention, the transport carriage main body includes a receiving portion that allows another transport carriage to be placed on the upper end portion of the transport carriage main body. It can also be stored and stored by a so-called stacking system that stacks vertically. Therefore, by combining the nesting method and the stacking method, a large number of transport carts can be stored and stored in a small space.

Further, according to the transport carriage according to the present invention, in the front half of the transport carriage main body, there is no member between the pair of left and right side frames, so that a person puts a container or the like placed on the transport carriage. Even if the foot is stepped on toward the transport cart when lifting or the like, the foot will not hit the transport cart. Therefore, safe work can be secured.

It is the schematic which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a front view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a top view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a right view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a left view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a rear view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a bottom view which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention. It is a figure which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention, and is a top view which shows a mode that two conveyance trolleys are accommodated by a nesting system. It is a figure which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention, and is a top view which shows a mode that two conveyance trolleys are accommodated by a nesting system. It is a figure which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention, and is a top view which shows a mode that two conveyance trolleys were accommodated by the nesting system. It is a figure which shows one Embodiment of the conveyance trolley | bogie which concerns on this invention, and is a front view which shows the state which piled up the two conveyance trolleys up and down.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic view showing an embodiment of a transport carriage according to the present invention, and FIGS. 2 to 7 are diagrams showing the details thereof. The transport cart 1 in this embodiment includes a transport cart body 2 constituted by a plurality of pipe members and a joint connecting the pipe members, and casters 3 provided at the four corners of the bottom of the transport cart body. The receiving carriage 4 is provided at the upper end of the transfer carriage main body 2 and is formed integrally with the joint so that another transfer carriage can be placed thereon.

In this embodiment, the pipe member is a synthetic resin-coated steel pipe, but a metal pipe, a synthetic resin pipe, or the like can be appropriately selected and used. Moreover, although the joint member uses a plastic molded product, it is possible to select and use an appropriate material such as a metal member for the joint member.

The transport carriage main body 2 includes a pair of side frame bodies 21 and 22 arranged in parallel to the left and right, and a first horizontal pipe 270 and a second horizontal pipe 280 that connect the pair of side frame bodies 21 and 22 to each other. Yes.

1, the left side frame body 21 is connected to the vertical center pipe 221 via joints 611 and 613 between the substantially center of two horizontal pipes 211 and 213 arranged in parallel in the vertical direction. doing. Further, the front ends of the two horizontal pipes 211 and 213 are connected to each other by a vertical pipe 231 via joints 621 and 623.

Further, the vertical support pipe 221 and the vertical pipe 231 are connected to each other at a portion slightly below the center in the vertical direction by a horizontal beam pipe 241. At this time, the horizontal beam pipe 241 is connected to the vertical column pipe 221 and the vertical pipe 231 via the joints 641 and 643, and is arranged substantially parallel to the horizontal pipes 211 and 213. Further, on the rear side of the side frame 21, pipe members 251 and 253 are connected to the vertical support pipe 221 and the horizontal pipe 213 by joints 651, 653, and 633, respectively, to form a substantially rectangular frame. Yes.

Similarly, the right side frame body 22 connects the substantially center of two horizontal pipes 212 and 214 arranged in parallel vertically by a vertical support pipe 222 via joints 612 and 614. Further, the rear ends of the two horizontal pipes 212 and 214 are connected to each other by a vertical pipe 232 via joints 632 and 634. Furthermore, the vertical support pipe 222 and the vertical pipe 232 are connected to each other at a position slightly below the center in the vertical direction by a horizontal beam pipe 242.

At this time, the horizontal beam pipe 242 is connected to the vertical column pipe 222 and the vertical pipe 232 via joints 642 and 644, and is arranged substantially parallel to the horizontal pipes 212 and 214. Further, on the front side of the side frame 22, pipe members 252 and 254 are connected to the vertical column pipe 222 and the horizontal pipe 214 by joints 652, 654, and 624, respectively, to form a substantially rectangular frame. Yes.

Further, the side frame body 21 and the side frame body 22 are connected by a first horizontal pipe 270 and a second horizontal pipe 280. That is, in this embodiment, the first horizontal pipe 270 has one end connected to the horizontal rail 241 via the joint 645 and the other end connected to the vertical column pipe 222 via the joint 642. At this time, the vertical strut pipes of the left side frame body 21 are arranged so that the backs are slightly connected to each other from the middle part of the horizontal pipes 211 and 213.

Thus, the first horizontal pipe 270 connects the substantially middle portions of the left and right side frames 21 and 22 in the front-rear direction, and is perpendicular to the horizontal beam pipes 241 and 242 (that is, on the side). It is adapted to be connected (perpendicular to the frames 21 and 22).

Note that one end of the first horizontal pipe 270 is connected to the vertical support pipe 221 via the horizontal rail pipe 241, thereby improving the strength against the twisting force in the horizontal direction of the transport carriage main body 2. The other end of the first horizontal pipe is connected to the vertical support pipe 222 and the horizontal beam pipe 242 via the L-shaped joint 642, and the first horizontal pipe 270 and the horizontal beam pipe 242 are connected to form a right angle. Thus, the angle formed by the first horizontal pipe 270 and the crosspiece pipe 242 is held at a right angle, and the strength against the twisting force in the horizontal direction of the transport carriage main body 2 is improved.

In this embodiment, one end of the second horizontal pipe 280 is connected to the horizontal pipe 211 via a joint 661, a pipe member 261, and a joint 631, and the other end is a vertical support pipe via the joint 662. 222 is connected.

By having the above-described configuration, another conveyance carriage 1 is brought close to the conveyance carriage 1 in the directions of arrows P and Q shown in FIGS. 8 to 9, for example, and stored and stored by a nesting method as shown in FIG. It becomes possible to do.

At this time, the joint between the joint 661 and the joint 653 and the joint 622 and the joint 654 are not connected by a vertical pipe, and are a gap. Therefore, since there is nothing obstructing to bring the first horizontal pipes 270 and the second horizontal pipes 280 close to each other when the other carriage 1 is brought close to one carriage 1 as described above, nesting The system can be stored in a space-saving manner.

In addition, the transport cart 1 is configured such that no member exists between the pair of left and right side frames 21 and 22 in the front half of the transport cart body 2. Therefore, even when a person steps on the transport cart 1 when lifting a container or the like placed on the transport cart, the foot does not hit the transport cart 1. . Therefore, safe work can be secured.

Further, flat portions 41 are formed on the upper end surfaces of the joints 621, 622, 631, and 632 provided at the four corners at the upper end of the transport carriage main body 2 so that the caster portions 3 of other transport carts 1 can be placed. The outer edge of the flat portion 41 is formed with an L-shaped ridge 42 projecting upward in a substantially L shape to constitute the receiving portion 4. Accordingly, when the caster part 3 of the transport carriage 1 is placed on the flat part 41, the movement of the caster part 3 in the horizontal direction is suppressed by the L-shaped ridges 42 at the four corners. There is no risk of 1 dropping out. Therefore, the transport cart 1 can be stored and stored not only by the nesting method but also by a so-called stacking method in which the conveyor carts 1 are stacked in the vertical direction.

As mentioned above, although demonstrated about the conveyance trolley | bogie which concerns on this invention in said embodiment, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning. . For example, it is good also as a structure which left-right reversed the conveyance trolley | bogie 1 shown in the said embodiment, and the change which connects the both ends of the 1st horizontal pipe 270 to the horizontal beam pipes 251 and 252 is also possible. Further, the flat portion 41 is not limited to a planar shape, but may be a concave shape having a depression at the center so that the stacking state can be made more stable.

DESCRIPTION OF SYMBOLS 1 Transfer trolley 2 Transfer trolley main bodies 21 and 22 Side frame 3 Caster part 4 Receiving part

Claims (2)

A transport carriage body formed by a plurality of pipe members and a plurality of joints connecting the pipe members; a caster portion provided at a lower portion of the transport carriage body; and an upper end portion of the transport carriage body. A transport carriage including a receiving section on which another transport carriage can be placed;
The transport carriage main body has a pair of side frames arranged in parallel to the left and right,
A first horizontal pipe and a second horizontal pipe connecting the pair of side frames,
Either one of the pair of side frames connects two horizontal pipes arranged vertically in parallel, a vertical support pipe connecting the centers of the horizontal pipes, and the front ends of the two horizontal pipes. And a vertical pipe that
The other side frame includes two horizontal pipes arranged in parallel vertically, a vertical support pipe connecting the centers of the horizontal pipes, and a vertical pipe connecting the rear ends of the two horizontal pipes. Has
The first horizontal pipe connects the left and right vertical strut pipes,
The second horizontal pipe is configured to connect the rear end portion of the upper horizontal pipe in the one side frame body and the vicinity of the upper end portion of the vertical support pipe in the other side frame body . Transport cart. A horizontal beam pipe is passed between the vertical support pipe and the vertical pipe of the side frame,
The transport carriage according to claim 1, wherein at least one end of the first horizontal pipe is connected to a vertical support pipe through the horizontal rail pipe.

Images