JPH0414353Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention provides support for pillars at the four corners of the pallet body, and maintains the upright state of the pillars by inserting the support into these support supports. This invention relates to an improvement in a multi-stage pallet for cargo handling, in which pallets are stacked one after another on the upper ends of these supported supports.

[Prior Art] A multi-stage pallet for cargo handling is known in which pallets can be stacked in many tiers by erecting supports at the four corners of the pallet body and stacking trays for upper pallets at the upper ends of these supports. .

As one type of such a multi-stage cargo handling pallet, a support support formed by fixing the top side of a bowl-shaped support held face down to the lower end of a pipe-like support support tube is attached to each of the four corners of the pallet body. A pipe-shaped support is removably inserted into the support support tube of the support support, and when forming a multi-stage pallet, the pipe-like support is inserted into the support support tube to hold the support in an upright state, and A structure is known in which the struts can be removed from the strut holding tube when multi-stage pallets are not required.

However, in conventional multi-stage cargo handling pallets of this type, when the support pipes and the pipe-shaped supports inserted into the support pipes are formed using generally commercially available JIS standard steel pipes, the support pipes Because there is no commercially available steel pipe of a suitable size that fits snugly into the holding tube, the fit between the column holding tube and the column is poor, causing the column to wobble inside the column holding tube, resulting in the inability to stabilize the column, and vice versa. There was a problem in that the fit between the column and the column holding tube was too tight, making it difficult to attach and detach the column.

In general, a multi-tiered pallet for cargo handling is constructed in a multi-tiered manner by stacking bowl-shaped receivers for the upper pallets one after another on the upper end of a support that is kept upright. Since the receiver placed on the top end is shaped like a bowl, the installation points of the supports are not fixed, and if pallets are stacked one after another in such an unstable condition, there is a problem of lack of stability. .

Furthermore, since the conventional multi-stage pallet for cargo handling is constructed by fixing the top of a bowl-shaped receiver in a face down position to the lower end of a pipe-shaped column holding tube, it is easy for dirt to accumulate inside the column holding tube. However, due to its structure, it was difficult to clean. In addition, the accumulated dirt became an obstacle and made it difficult to securely insert the support.

The applicant has already applied for a multi-stage pallet for cargo handling with the aim of eliminating such disadvantages.
It is proposed as No. 164197 (Utility Model Publication No. 62-40904). However, the multi-stage pallet for cargo handling that has already been proposed has a structure in which a column receiver is attached within a column holding tube, so its manufacture is complicated and difficult.
In addition, even when performing rust prevention treatment by plating or painting the inside of the pillar holding pipe, the existence of the pillar receiver installed inside the pillar holding pipe makes it difficult for raw materials to accumulate and paint to flow in and out, making it difficult to effectively The problem was that it was difficult to apply anti-rust treatment.

[Problems to be solved by the invention] In view of the above-mentioned circumstances, the present invention makes it possible to securely hold the strut in the strut holding tube to stabilize the strut, and to attach and detach the strut to the strut holding tube. It is easy to operate, the upper pallet is securely installed at the top of the support column, allowing stable stacking of pallets, and it is a multi-stage cargo handling system that eliminates the risk of dirt accumulating in the pipe-shaped support support tube. The purpose is to provide a pallet for
The purpose of this invention is to provide a multi-stage cargo handling pallet that is easy to manufacture and can be completely rust-proofed by eliminating the disadvantages of the multi-stage cargo handling pallet of No. 40904).

[Means for Solving the Problems] The multi-stage cargo handling pallet according to the present invention is formed by fixing the top side of a bowl-shaped receiver 4 in a face down state to the lower end of a pipe-shaped column holding tube 3. Support post holder 2
are attached to each of the four corners of the pallet body 1, and a pipe-shaped support 5 is installed in the support support tube 3 of the support support 2.
In order to solve the above-mentioned problem in a multi-stage cargo handling pallet constructed by removably inserting and removably inserting the support tubes 3, the column holding tubes 3 are evenly drawn in a radiused shape at both upper and lower ends in the direction of the center of the tube. By doing so, narrow openings 7, 7 are formed at both the upper and lower ends, and the receiver 4 has a narrower opening formed at the lower end of the column holding tube 3 on the top side of the receiver. A fitting hole 8 is formed which has an opening having approximately the same diameter as the narrow opening 7 and is disposed opposite to the narrow opening 7, and in the case of the pipe-shaped support 5, the outer diameter of the support is The inner diameter of the narrowed opening 7 formed at the upper end of the strut holding tube 3 is slightly smaller than the inner diameter of the narrowed opening 7 formed at the upper end of the strut holding tube 3, and the lower end of the strut 5 is formed at the narrowed opening 7 formed at the lower end of the strut holding tube 3. In addition, the upper end of the column 5 is connected to the receiver 4 of the upper pallet placed on the column so that the lower end is slightly exposed from the narrow opening 7 and is fitted and locked. Fitting hole 8
The upper end is slightly exposed from the fitting hole 8.
Both the upper and lower ends of the support column 5 are equally drawn in a rounded shape toward the center of the tube, and spindle-shaped tapered portions 6 are formed at each of the upper and lower ends so that the pillar 5 can be fitted and locked.

[Example] Hereinafter, an example of the present invention will be explained based on the drawings.

Post supports 2 are attached to each of the four corners of the pallet body 1. The strut receiver 2 is formed by fixing the top side of a bowl-shaped receiver 4 which is placed face down to the lower end of a pipe-shaped strut holding tube 3. A pipe-shaped support 5 is disposed inside the support support tube 3 of the support support 2.
It is constructed so that it can be inserted and inserted in a detachable manner.

In the case of the strut holding tube 3, the upper and lower ends thereof are simultaneously and evenly drawn in a rounded shape by a press machine or the like in the direction of the center of the tube, thereby forming narrow openings 7 at the upper and lower ends, respectively. 7
has been formed.

Further, the receiver 4 has an opening on the top side of the receiver 4 that has approximately the same diameter as the narrow opening 7 formed at the lower end of the strut holding tube 3 and has Fitting holes 8 are formed to face each other.

In the case of the pipe-shaped strut 5, the outer diameter of the strut is slightly smaller than the inner diameter of the narrow opening 7 formed at the upper end of the strut holding tube 3, and The lower end portion is slightly exposed from the narrowing opening 7 formed at the lower end of the strut holding tube 3, and the lower end portion is fitted and locked in the narrowing opening 7. 5 is slightly exposed from the fitting hole 8 of the receiver 4 of the upper pallet placed on the support column, and the upper end is fitted and locked into the fitting hole 8. Both upper and lower ends of the strut 5 are drawn uniformly into a rounded shape using a press machine or the like in the direction toward the center of the tube, thereby forming spindle-shaped tapered portions 6 at each of the upper and lower ends.

[Effects of the invention] Since the multi-stage cargo handling pallet according to the invention is configured as described above, it has the following effects.

First, when the strut 5 is inserted into the strut retaining tube 3 of the strut receiver 2 in an upright state, the strut retaining tube 3 is drawn evenly in a rounded shape in the direction of the tube center at both upper and lower ends of the strut retaining tube 3. Narrow openings 7, 7 are formed at both the upper and lower ends, respectively, and in the case of the pipe-shaped strut 5, the outer diameter of the strut is defined by the narrow opening formed at the upper end of the strut holding tube 3. The inner diameter of the pillar 5 is slightly smaller than that of the pillar 5.
The lower end portion of the strut holding tube 3 is slightly exposed from the narrowing opening 7 formed at the lower end portion of the column holding tube 3, so that the lower end portion is fitted and locked into the narrowing opening 7,
The lower end of the strut 5 is evenly drawn in a rounded shape toward the center of the tube to form a spindle-shaped tapered portion 6 at the lower end. 6 is tightly fitted and locked into the lower constriction opening 7, and the outer circumferential surface near the lower end of the support column 5 is tightly fitted into the upper constriction opening 7. Therefore,
The strut 5 can be reliably held in the strut holding tube 3 and the strut 5 can be stabilized, and the strut 5 fitted into the strut holding tube 3 has a spindle-shaped tapered part 6 at its lower end and a lower end. Since one outer circumferential surface near each section is in line contact with the inner wall of the strut holding tube 3, it is extremely easy to attach and detach the strut 5 and the strut holding tube 3.

In addition, when installing the upper pallet receiver 4 at the upper end of the column 5 held in an upright state, the receiver 4
The top side, that is, the side to which the strut holding tube 3 is fixed, has an opening having approximately the same diameter as the narrow opening 7 formed at the lower end of the strut holding tube 3, and facing the narrow opening 7. In addition, in the case of the pipe-shaped support 5, a fitting hole 8 is formed.
The upper end of the column 5 is slightly exposed from the fitting hole 8 of the receiver 4 of the upper pallet placed on the column so that the upper end is fitted and locked into the fitting hole 8. In addition, since the upper end of the strut 5 is evenly drawn in a rounded shape toward the center of the tube to form a spindle-shaped tapered portion 6 at the upper end, the spindle-shaped tip formed at the upper end of the strut 5 is The detail 6 is tightly fitted into the fitting hole 8 of the receiver 4 of the upper pallet.

In this way, the lower end side of the column 5 is securely held within the column holding tube 3, and the upper pallet receiver 4 is securely installed at the upper end of the column 5, so that the pallet can be held securely. Excellent stability when stacked.

Furthermore, the multi-stage cargo handling pallet according to the present invention is
Narrow openings 7 are formed at both ends of the strut holding tube 3, and the receiver 4 has narrowed openings formed at the lower end of the strut holding tube 3 on the top side of the receiver. Since the fitting hole 8 is formed with an opening having approximately the same diameter as the part 7 and is disposed opposite to the narrowed opening 7, there is no risk of dust etc. accumulating inside the strut holding tube 3. Also, there is no need to form a separate drainage hole or the like.

Furthermore, the multi-stage cargo handling pallet according to the present invention has the following features:
Utility Application Already Proposed by the Applicant
Unlike the multi-stage cargo handling pallet of No. 164197 (Utility Model Publication No. 62-40904), the structure is not such that the strut holders are installed inside the strut holding tubes, but both the upper and lower ends of the strut holding tubes 3 are simultaneously rounded toward the center of the tube. Since it is drawn uniformly into a shape, it is relatively easy to manufacture, and the manufacturing time can be significantly shortened.

Furthermore, the multi-stage cargo handling pallet according to the present invention has the following features:
Utility Application Already Proposed by the Applicant
Unlike the multi-stage cargo handling pallet of No. 164197 (Utility Model Publication No. 62-40904), the structure does not have a strut receiver installed inside the strut retaining tube, but instead blocks the hollow part of the strut retaining tube and the fitting hole of the receptacle. Because there are no materials present, when plating or painting the inside of the support tube, there is no accumulation of raw materials, and the paint can flow in and out smoothly, making it possible to perform effective anti-corrosion treatment.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a multi-stage cargo handling pallet according to the present invention, Fig. 2 is a front view showing a stacked state of the multi-stage cargo handling pallets, and Fig. 3 is a main part of the multi-stage cargo handling pallet. It is a partially longitudinal front view shown. 1...Pallet body, 2...Strut holder, 3...
Strut holding tube, 4... Receiver, 5... Strut, 6, 6
... Spindle-shaped tapered part of the strut, 7,7... Narrow opening of the strut holding tube, 8... Fitting hole.

Claims (1)

[Claims for Utility Model Registration] Post supports 2, which are formed by fixing the top side of a bowl-shaped receiver 4 lying face down to the lower end of a pipe-shaped support holding tube 3, are attached to each of the four corners of the pallet body 1. , a multi-stage cargo handling pallet constructed by removably fitting pipe-shaped supports 5 into the support pipes 3 of the support support 2, wherein the support pipes 3 have both upper and lower ends directed toward the center of the pipe. By uniformly drawing in a rounded shape, narrow openings 7 are formed at both the upper and lower ends, respectively.
7, and the receiver 4 has an opening having approximately the same diameter as the narrow opening 7 formed at the lower end of the strut holding tube 3 on the top side of the receiver, and the narrow opening 7 forming a fitting hole 8 disposed opposite to 7;
In the case of the pipe-shaped strut 5, the outer diameter of the strut is slightly smaller than the inner diameter of the narrow opening 7 formed at the upper end of the strut holding tube 3, and the lower end of the strut 5 The strut 5 is slightly exposed through the constricted opening 7 formed at the lower end of the strut holding tube 3 so that the lower end is fitted and locked in the constricted opening 7. The support column 5 is installed so that the upper end portion is slightly exposed from the fitting hole 8 of the receiver 4 of the upper pallet placed on the support column, and the upper end portion is fitted and locked into the fitting hole 8. A multi-stage pallet for cargo handling, characterized in that both upper and lower ends of the pipe are evenly drawn in a rounded shape toward the center of the pipe, thereby forming spindle-shaped tapered portions 6 at each of the upper and lower ends.