JPH04311453A - Transportation instrument - Google Patents

Abstract

PURPOSE:To enable always a stable landing and piling in stages irrespective of conditions of a floor by a method wherein a supported member having a U-shaped cross section and opened in a lower surface is connected between lower end parts of vertical supports and a supporting member having a cone-shaped cross section with which the supported member can be engaged is connected between upper end parts of the vertical supports with a rectangular part set as a top. CONSTITUTION:A pair of right and left rear part vertical supports 2A and 2B and a pair of right and left front part vertical supports 1A and 1B are arranged at four corners of a substantail rectangle in which an outside distance L2 between the supports 2A and 2B is smaller than an inside distance L1 of the supports 1A and 1B, and each bottom part of the four supports is connected with a grid-shaped bottom frame 3 in which a width L3 is within an inside distance L4. Between each lower end of the pairs opposing forward and rearward of vertical supports 1A and 2A, and 1B and 2B, supported members 4A and 4B having a U-shaped cross section and opened in a lower surface are connected below along the sides of the bottom frame 3. On the other hand, between each upper end of the pairs of vertical supports 1Aa and 2A, and 1B and 2B, supporting members 8A and 8B having a cone-shaped cross section with which the supported members 4A and 4B are engaged are connected with its rectangular part set as a top.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention consists of a framework structure,
This relates to a box-shaped transportation tool that can be stacked.

0002

[Prior Art] Conventionally, the above-mentioned transportation tools include:
For example, a configuration disclosed in Japanese Utility Model Application Publication No. 2-8730 is provided.

That is, in this conventional configuration, a pair of left and right front vertical columns and a pair of left and right rear vertical columns are arranged such that the outer surface interval of the rear vertical columns is smaller than the inner surface interval of the front vertical columns. The bottoms of these columns are connected by a bottom frame whose width falls within the inner surface spacing, and a supported member with a U-shaped cross section whose lower surface is open is connected between the lower ends of the vertical columns facing each other in the front and rear. At the same time, between the upper ends of the vertical columns facing each other in the front and back, a support member having a mountain-shaped cross section into which the supported member of the upper transport tool can fit when stacked is connected with the corner as the top, and this support member A regulating plate is provided at the rear end portion of the upper stage transport tool to restrict rearward movement of the supported member, and the width of the supporting member is formed to be larger than the opening width of the supported member.

According to this conventional structure, by fitting the supported member of the upper carrying tool onto the supporting member of the lower carrying tool, the carrying tools can be stacked vertically. The centering action can be performed by the lower end side edge portions of the supported member respectively coming into contact with the inclined surfaces of the supporting member.

[0005]

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional structure, since the grounding portion to the floor side is the lower end side edges of the supported member, it is difficult to contact the ground on the asphalt surface or soft floor surface in summer. Due to the load, both edges of the lower end become wedged, resulting in poor stability. It becomes unstable especially when there is an uneven load or when stacked.

[0006] An object of the present invention is to provide a transportation tool that can always perform stable landing and stacking regardless of floor conditions.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the carrying tool of the present invention includes a pair of left and right front vertical columns, a pair of left and right rear vertical columns, and a bottom frame that connects the lower parts of these columns. The supported member has a U-shaped cross section and the lower surface is open between the lower ends of the vertical columns facing each other in the front and rear, and the upper A supporting member having a mountain-shaped cross section into which the supported member of the transportation tool can be freely fitted is connected with the corner portion as the top, and the width of the supporting member is formed to be larger than the opening width of the supported member, and the supported member A grounding portion is provided in a row from at least one of both side edges of the lower end in the left-right direction.

[0008]

[Function] According to the structure of the present invention, when the carrying tool is lowered onto the floor, the grounding part touches the ground along with each lower edge, and the carrying tool stably lands on the ground due to the wide bottom surface of this grounding part. do.

[0009] When transporting tools loaded with objects are stacked one above the other, a forklift or the like is used to lift the upper transporting tool slightly higher than the upper end of the vertical support of the lower transporting tool at the front of the lower transporting tool. Next, the position was adjusted in the left and right direction, and the rear end of the supported member of the upper transport tool was positioned so as to be able to fit with the front end of the support member of the lower transport tool, and the upper transport tool was moved rearward. Thereafter, it is lowered to fit the supported member of the upper transport tool into the support member of the lower transport tool from above. Thereby, the upper carrying tool can be supported on the lower carrying tool and stacked.

At this time, the supported member has a U-shaped cross section and has great strength due to the rib effect of the ground contact part, and both edges of the lower end of the supported member are in contact with the inclined surface of the supporting member. This results in a centering effect.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1A, 1B are a pair of left and right front vertical supports, 2A, 2B
are a pair of left and right rear vertical struts, and these are the front vertical struts 1A,
The rear vertical struts 2A and 2B are arranged at four corners of a substantially rectangular shape so that the outer surface distance L2 of the rear vertical struts 2A and 2B is smaller than the inner surface distance L1 of the rear vertical struts 1B. The bottom portions of each of the pillars 1A, 1B, 2A, and 2B are connected by a lattice-shaped bottom frame (cargo receiving stand) 3 whose width L3 falls within the inner surface interval L4.

[0012] Vertical columns 1A and 2A facing each other at the front and rear
, and between the lower ends of 1B and 2B, supported members 4A and 4B each having a U-shaped cross section with an open lower surface are connected along the lower side of the bottom frame 3. These supported members 4A, 4
B is front and rear reinforcing plates 5A, 5B, 6A, 6 whose front and rear ends are fixed across the vertical struts 1A, 1B, 2A, 2B and the bottom frame 3.
B, and its middle and rear parts are supported by an angle-shaped stay member 7 hanging from the bottom frame 3, so that the lower end surface is flush with the lower surface of the vertical supports 1A, 1B, 2A, and 2B. is set to In addition, this stay material 7
After cutting the lower end surface into a flat shape, supported members 4A and 4B
is bonded to the top surface of the

[0013] Also, vertical struts 1A and 2A facing each other in the front and rear
In addition, between the upper end portions of 1B and 2B, there are support members 8A and 8B each having a mountain-shaped cross section, into which the supported members 4A and 4B of the upper transport tool can be fitted when the transport tools loaded with objects to be transported are stacked up and down. , are connected with the corner portions as the tops, and further, a back cross member 9 is connected between the upper ends of the rear vertical columns 2A, 2B.

That is, the support members 8A, 8B have their front ends supported by auxiliary members 10A, 10B attached to the inside of the upper ends of the front vertical columns 1A, 1B, and their rear ends supported by the back cross member 9. is supported at both ends. The width a of the supporting members 8A, 8B is set larger than the opening width b of the supported members 4A, 4B, and when the conveying tools loaded with conveyed objects are stacked, the inclined surface 8a of the supporting members 8A, 8B
The lower end side edges 4a of the supported members 4A, 4B are brought into contact with and supported, and even when the upper transport tool is placed shifted left and right, the upper transport tool is centered by the action of the inclined surface 8a.

Further, among the lower end both side edges 4a of the supported members 4A, 4B, a grounding portion 4b is continuously provided inward from the inner lower end both side edges 4a. At this time, the grounding portions 4b are connected in series by integral molding by bending, welding, or the like.

Regulating plates 11A, 11B are attached to the rear end surfaces of the support members 8A, 8B to restrict rearward movement of the upper transport tool during storage. Here, the support member 8A
, 8B is set larger than the outer surface spacing L2 of the rear vertical struts 2A, 2B. Therefore, this carrying tool becomes a box-shaped framework with the front and top surfaces open, and when nesting, the upper carrying tool can be inserted from the front of the lower carrying tool with the upper carrying tool slightly lifted.

It should be noted that a square pipe body is used as the frame component in the above embodiment. Next, the operation of the above embodiment will be explained. In this transportation tool, the object is loaded onto the bottom frame 3 and transported by a forklift, truck, etc., but when transporting the object or storing it with the object loaded, it is necessary to They can be stacked in multiple tiers to make effective use of space.

That is, when the lower transport tool is lowered onto the floor 12, the grounding part 4b comes into contact with the ground along with each lower edge 4a, and the wide bottom surface of the grounding part 4b makes contact with the floor 12, so that the transport tool To always land stably regardless of the conditions on the floor 12 side.

When stacking the upper and lower tiers, use a forklift or the like to lift the upper tier transportation tool slightly higher than the upper end of the lower tier vertical supports 1A, 1B, 2A, 2B at the front of the lower tier transportation tool that has landed, and then lift it up in the left and right direction. The front parts of the supporting members 8A, 8B of the lower transport tool and the rear parts of the supported members 4A, 4B of the upper transport tool are positioned so that they can fit into each other. Next, the upper transport tool is pushed rearward and lowered to a position where the upper supported members 4A, 4B abut against the regulation plates 11A, 11B, and the supporting member 8A of the lower transport tool is pushed out.
, 8B are fitted from above to support the supported members 4A, 4B of the upper transport tool.

At this time, as shown in FIG. 6, the lower supporting members 8A and 8B are formed to have a mountain-shaped cross section, and the upper supported members 4A and 4B are formed to have a U-shaped cross section with an open bottom. Moreover, since the width a of the supporting members 4A, 4B is smaller than the opening width b of the supported members 8A, 8B, the lower ends of both leg portions 4a of the supporting members 4A, 4B are in contact with the inclined surfaces 8a of the supporting members 8A, 8B. centered.

[0021] When the above-mentioned carrying tools are not used for transporting or stocking objects, they can be nested in a low-bulk manner. In other words, in front of the lower transport tool that is on the ground, place the upper transport tool to be nested on the bottom frame 3 of the lower transport tool.
Lift it up to a position slightly higher than the top of the . Next, from between the front supports 1A and 1B of the lower transport tool, the rear supports 2A and 2B of the upper transport tool, the bottom frame 3, and the supported member 4A,
4B, and lower the upper transport tool so that the bottom frame 3 of the upper transport tool is opposed to the upper surface of the bottom frame 3 of the lower front struts 1A and 1B. Then, the bottom frame 3 of the upper carrying tool is placed on the bottom frame 3 of the lower carrying tool, so that nesting can be performed as shown by phantom lines in FIG. 4.

[0022] In the above embodiment, a carrying tool that can be nested is shown, but in the case of a carrying tool that can be simply piled up without nesting, among the lower end both side edges 4a of the supported members 4A, 4B, the outer lower end both side edges The grounding portions 4b may be continuously provided outward from the grounding portion 4a, or further may be provided continuously both toward the inside and outside.

[0023]

Effects of the Invention According to the present invention having the above-mentioned configuration, when the transportation equipment is lowered onto the floor, the grounding portion of the wide bottom surface can be brought into contact with the ground along with each lower edge. Stable landing and stacking can always be performed regardless of the conditions or uneven loads.

[0024] Then, lift the upper transport tool slightly higher than the upper end of the vertical support of the lower transport tool using the front part of the lower transport tool, and then attach the front end of the supporting member of the lower transport tool to the back of the supported member of the upper transport tool. By positioning the ends so that they face each other so that they can be fitted, and then moving the upper transporting tool backwards and lowering it, the supported member of the upper transporting tool is fitted from above to the supporting member of the lower transporting tool. The conveying tools can be stacked vertically.

At this time, the supported member has a U-shaped cross section and can obtain great strength due to the rib effect of the ground contact part, and both edges of the lower end of the supported member are aligned with the inclined surface of the supporting member. By making contact, the positional deviation of the upper transport tool can be automatically corrected and centered.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, and is a perspective view of a transportation tool seen from above.

FIG. 2 is a perspective view of the transportation tool seen from below.

FIG. 3 is a front view of the transportation tool.

FIG. 4 is a side view of the transportation tool.

FIG. 5 is a bottom view of the transportation tool.

FIG. 6 is an enlarged view of part A shown in FIG. 3;

[Explanation of symbols]

1A Front vertical support 1B Front vertical support 2A Rear vertical support 2B Rear vertical support 3 Bottom frame 4A Supported member 4B Supported member 4a Lower edge on both sides 4b Grounding part 8A Support member 8B Support member 8a　　　　　　　　　　　　Slope 12 Floor L1 Front vertical strut inner surface spacing L2 Rear vertical column outer surface spacing L3 Bottom frame width a Supporting member width b Supported member opening width

Claims (1)

[Claims] Claim 1: A pair of left and right front vertical struts, a pair of left and right rear vertical struts, and a bottom frame connecting the lower parts of these struts; A support member with a chevron-shaped cross section that connects the supported members each having an open U-shaped cross section, and into which the supported members of the upper transport tool can fit freely when stacked between the upper ends of the vertical columns facing each other in the front and rear. are connected with the corner portion as the top, the width of this supporting member is formed larger than the opening width of the supported member, and a grounding portion is connected in the left-right direction from at least one of both side edges of the lower end of the supported member. A transportation tool characterized by: