JP3043569U - Expandable Struts for Pallet Support Frame Structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an extendable column for obtaining a pallet support frame structure capable of adjusting a distance between an upper frame member and a lower frame member as necessary. In a pallet support frame structure composed of columns 12 for connecting an upper frame member 14 and a lower frame member 16, the columns 12 are hollow and have a square cross section. The expanding round bar member 18 is fixed and the hollow cylindrical tube body 22 is rotatably fitted, and the support member 24 of the tube body 22 is attached to the lower end of the round bar member 18.
A pair of pin members 26 extending along the diagonal line of the inner direction of the hollow square column are fixed to the lower end of the hollow cylindrical member, and the upper frame member is lifted, and together with the round bar member and the The hollow cylindrical member is lifted, and the pin member of the outer peripheral wall of the support column 12 is rotated by 45 degrees at a position where the pin member 26 of the tubular body 22 is exposed above the outer peripheral wall of the support column 12. Lock on the upper edge.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention is an extendable column of a pallet support frame structure, and more specifically, it can selectively extend and retract the height of a luggage storage portion of a pallet support frame structure for storing a pallet for loading and unloading cargo. Regarding the stanchions that were made.

[0002]

[Prior art]

 When transporting, storing, or storing cargo, the cargo loaded on the pallet is stored in the pallet support structure using the forklift, and the cargo is transported together with the pallet support frame structure or moved by the forklift. Or, it is a common practice in the technical field of cargo handling to arrange the pallet support frame structures in an overlapping manner.

This pallet support frame structure generally has a rectangular frame structure that is composed of metal columns such as steel and girder members, and forms a space for accommodating luggage.

As a conventional pallet support frame structure, utility model registration application publication No. 200546 (designation “box pallet”) in 1987, utility model registration application publication No. 192234 (invention) Name "Assembled Pallet Support Frame"), 1991 Utility Model Registration Application Publication No. 61036 (Device name "Frame Pallet"), 2nd Year Utility Model Registration Application Publication No. 25430 (Device name "Frame Pallet") )), Utility model registration No. 301876 (the name of the device is “pallet support frame structure”).

[0005]

[Problems to be solved by the device]

 The inventions disclosed in the above-mentioned publications are characterized by the assembling of the supporting frames, respectively, but in both cases, the lower frame member at the bottom and the upper frame member at the top constituting the pallet supporting frame structure The interval between and is constant. That is, the lengths of the columns that support the lower frame member and the upper frame member are fixed.

Therefore, the height of the luggage that can be stored in the pallet support frame structure is constant, and depending on the size of the luggage, the top surface of the luggage abuts against the upper frame member, or the top surface of the luggage and the upper frame member are separated from each other. There was the inconvenience that there was an unnecessary space between them.

In view of such unsolved problems, the main object of the present invention is to provide a pallet support frame structure capable of adjusting the distance between the upper frame member and the lower frame member as needed. It is to provide a retractable strut for obtaining.

An object of the present invention is to provide an extendable column in which the distance between the upper frame member and the lower frame member of the pallet support frame structure can be changed very easily on site.

[0009]

[Means to solve the problem]

 In order to achieve this object, the present invention relates to a pallet support frame structure including an upper frame member, a lower frame member, and a pillar connecting the upper and lower frame members, wherein the pillar has a square cross section and is hollow. That a round bar member that extends downward is fixed to the upper frame member, that the tubular body of the hollow cylindrical member is rotatably fitted to the round bar member, The support member for the hollow cylindrical member is attached to the lower end of the rod member, and a pair of pin members extending along the diagonal line of the inner direction of the hollow square pillar are fixed to the lower end of the hollow cylindrical member. The upper frame member is lifted, and the round bar member and the hollow cylindrical tube body are lifted together with the upper frame member, and the pin member of the hollow cylindrical tube body is exposed above the outer peripheral wall of the column. At the position where the By 45 ° rotation around the member, in which the pin member made so as to engage the upper edge of the outer peripheral wall of the strut.

[0010]

[Explanation of the embodiment]

 A preferred embodiment of the invention is described in detail with reference to the figures. The pallet support frame structure 10 of the present invention shown in FIG. 1 has no difference in appearance from a normal pallet support frame structure, and includes a plurality of upright supporting columns 12 each having a square cross section and hollow. The upper frame member 14 and the lower frame member 16 fixed to the side wall at the lower end of the column 12 or at a position close to the lower end by welding or other appropriate means so as to extend in the horizontal direction.

The pillar 12 is made of a hollow steel material having a square cross section. One end of a round bar member 18 extending vertically along the center line of the support column 12 is fixed to the upper frame member 14. The round bar member 18 may be directly connected to the upper frame member 14, or may have a base portion 20 having the same shape as that of the support column 12 as shown in FIG.

A hollow cylindrical tube body 22 is rotatably fitted to the round bar member 18, and the round bar member 18 and the tube body 22 are inserted into a hollow portion S of the column 12. After fitting the tubular body 22 to the round bar member 18 so that the cylindrical tubular body 22 does not fall off from the round bar member 18, the support member 24 of the tubular body 22 is attached to the lower end of the round bar member 18. Install.

The support member 24 has an opening at the lower end of the round bar member 18 and is a pin to be inserted into this opening, or a flange member which is fixed to the lower end of the round bar member 18 by screwing or other suitable means. You can

At a position close to the lower end of the cylindrical tube body 22, a pair of pin members 26 extending in the diagonal direction of the square hollow portion S of the column 12 are fixed.

When the upper frame member 14 is lifted up by using, for example, a fork lift (not shown), the round bar member 18 and the cylindrical tube body 22 supported by the round bar member 18 are moved together with the upper frame member 14. Be lifted.

When the pin member 26 at the lower end of the tubular body 22 comes out above the upper edge of the peripheral wall of the support column 12, the pin member 26 attached to the tubular body 22 is not restrained by the peripheral wall of the support column 12, so that the round bar member 18 It can be freely rotated around the axis. Therefore, if the pipe body 22 is rotated 45 degrees and the fork lift is separated from the upper frame member 14, the upper frame member 14, the round bar member 18, and the pipe body 22 descend by their own weight, and the pin of the pipe body 22 is lowered. The member 26 abuts and locks against the upper edge of the side wall of the column 12, and the entire length of the column 12 extends in accordance with the length of the pipe body 22.

It is convenient to provide a notch groove 28 into which the pin member 26 of the tubular body 22 is inserted, at the center of the upper edge of the side wall of the column 12.

It should be noted that, if necessary, if a plurality of tube bodies 22 to which the pin members 26 are attached are stacked on each other and fitted into the round bar member 18, the support columns 12 can be expanded and contracted as necessary. It can be expanded and contracted in multiple stages.

Further, when the upper frame member 14 is lifted, the round bar member 18 and the pipe body 22 are inserted into the column 12 so that the round bar member 18 does not come out from the upper end of the column 12, and then the column 12 is inserted. It is preferable to attach a suitable stopper 30 to the inner corner of the upper peripheral edge of the hollow portion S.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a pallet support frame structure to which the present invention is applied.

FIG. 2 is a schematic cross-sectional view showing a part of the retractable support column of the present invention.

FIG. 3 is a schematic cross-sectional view showing a plane of an upper peripheral edge of a column and a round bar member and a tubular body housed inside the column.

FIG. 4 is a partial vertical cross-sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 10 Pallet Support Frame Structure 12 Support 14 Upper Frame Member 16 Lower Frame Member 18 Round Bar Member 20 Base of Round Bar Member 22 Hollow Cylindrical Tubular Body 24 Support Member of Tubular Body 26 Pin Member 28 Notch Groove 30 Stopper

Claims (4)

[Utility model registration claims] 1. An upper frame member (14) and a lower frame member (16)
And a pillar (12) for connecting the upper and lower frame members (14; 16) to each other, in the pallet support frame structure (10), the pillar (12) having a hollow square cross section. A round bar member (18) extending downward is fixed to the upper frame member (14), and a hollow cylindrical pipe body (22) is rotatably fitted to the round bar member (18). And the round bar member (18)
At the lower end of the support member (2) for the hollow cylindrical tube (22).
4) is attached and the hollow cylindrical tube (22)
And a pair of pin members (26) extending along the inner diagonal of the regular square hollow column (12) fixed to the lower end of the column. 2. The extensible column of a pallet support frame structure according to claim 1, wherein a plurality of hollow cylindrical pipes (22) fitted to the round bar member (18) are provided. 3. The extendable column of the pallet support frame structure according to claim 1, wherein a notch groove (28) into which the pin member (26) is inserted is provided at a center of an upper edge of the column (12). 4. The pallet support frame according to claim 1, wherein a stopper (30) for a support member (24) provided on the round bar member (18) is provided at an inner corner of an upper peripheral edge of the column (12). Stretchable strut of the structure.