JPH0355311Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to a simple structure that includes a fixed shelf that is fixed to a support at a fixed height and a movable shelf that can be supported at any height. be.

(Prior art and its problems) In this type of conventional rack structure, locking claws are formed at appropriate intervals on both sides of a pillar with a substantially chevron-shaped cross section, and the side walls on both sides of the corner of the shelf are is engaged with the locking claw, a bolt is penetrated from the outside of the support between the corner of the support and the corner of the backing plate, and a nut is screwed into the bolt on the inside of the backing plate. By doing so, the shelf board was fixed at a constant height of the support.

In such a conventional rack structure, the bolt holes and the locking claws on both sides are visible from the outside of the column, resulting in an unsightly appearance. or,
The load will be applied to the engagement part between the locking claws on both sides of the support and the shelf board, and the claws and the side wall of the shelf board that engage with these parts will be easily deformed by the load, resulting in heavy loads. There were some flaws that I couldn't stand.

(Means for Solving the Problems) The present invention proposes an easy structure that can solve the above-mentioned conventional problems, and its features are as follows: In addition to fixing and protruding bolts, locking holes are provided in the folded plate parts folded inward from both sides of the support, and the shelf support members fitted inside the corner parts of the fixed shelf board are provided with locking holes. A pair of locking protrusions are provided that penetrate through holes in the side walls on both sides of the plate corner portion and fit into locking holes on both sides of the support, respectively, and a bolt hole through which the bolt passes. By tightening the nuts screwed onto the bolts protruding from the column, the side wall portions on both sides of the corner portion of the shelf are clamped and fixed between the folded plate portions on both sides of the column and the shelf support member, and the movable shelf is fixed. The present invention is supported by a shelf support having a pair of locking pieces that removably engage with vertical long holes provided at appropriate intervals in the folded plate portions on both sides of the support.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In Figures 1 and 2, 1 is a support placed at the four corners, 2 is a fixed shelf plate fixed at three locations at both the upper and lower ends of support 1, and the middle position, and 3 is a support placed at an arbitrary height. This is a movable shelf board supported by 1.

Each support 1 has the same structure, and is shown in Figs.
As shown in FIG. 5, it is formed into a substantially chevron-shaped cross section with flat corner portions 4, and folded plate portions 5 are integrally formed on both sides by bending, respectively.
The side edge 5a of the folded plate portion 5 is brought into contact with the inner surface of the column. Both folding plate parts 5 are provided with locking holes 6 which are long in the length direction of the pillar at appropriate intervals in the length direction of the pillar.
A bolt 7 is fixed and protruded by welding on the inner surface of the flat corner portion 4 at a height that supports the fixed shelf board 2. Note that this bolt 7 is located at the same level as the lower end of the locking hole 6, which is located at a height that supports the fixed shelf board 2.

Reference numeral 8 denotes a base attached to the lower end of each support 1, and the protrusions 9 protruding from the base 8 are fixed by tightly fitting into the inner hollow portions 10 of the folded plate portions 5, respectively. Reference numeral 11 denotes a through screw hole provided in the base plate 8, into which a level adjuster bolt can be screwed and passed through from below, if necessary.

FIG. 6 shows the shelf support member 12 used for attaching the fixed shelf board 2, and as shown in FIGS. 8 to 10, the flat corner part 13 and both sides of the corner part of the fixed shelf board 2 are shown. Both sides 14 contacting the inner surfaces of the side walls 2a, 2b, and flange portions 15a, 1 protruding inward from the upper and lower both edges by bending.
5b, and the flat corner part 13 has a bolt hole 1.
6, and cylindrical locking protrusions 17 protruding outward are provided on both sides 14 by burring, respectively.

FIG. 7 shows a shelf support 18 used to support the movable shelf board 3, and as shown in FIGS. 11 and 12, the upper half part fits inside the corner of the movable shelf board 3. 19 and the lower half portion 20 that abuts the both side folded plate portions 5 of the support 1, there is provided a step portion 21 that supports the lower edge of the side wall portions 3a, 3b on both sides of the corner portion of the movable shelf board 3. Further, the lower half portion 20 is provided with a pair of locking pieces 22 that can be removably fitted into a pair of locking holes 6 located at the same level of the support column 1.

The fixed shelf board 2 and the movable shelf board 3 are arranged downwardly from the four sides of the side walls 2a, 2b and 3a, 3, respectively.
b is integrally formed by bending, and the shelf support members 12 are fitted inside the corner parts of the side walls 2a and 2b of the fixed shelf board 2, and the upper flange part 15a is brought into contact with the bottom surface of the shelf board. A through hole 23 is provided into which the pair of locking protrusions 17 of the shelf support member 12 fit and protrude when the shelf board support member 12 is turned. Note that the side wall portions 2a, 2b and 3a, 3b of each shelf board 2, 3 have the necessary strength as a folded double structure.

To explain how to assemble the rack, see Figures 8 to 1.
As shown in Figure 0, an upper flange 15a abuts the bottom surface of the shelf 2 on the inner side of the corner of the fixed shelf 2, and a pair of locking protrusions 17 are provided on both side walls 2.
The shelf support member 12 is fitted into the through holes 23 of a and 2b so as to fit and protrude from the inside. At this time, both side portions 14 come into contact with the inner surfaces of both side wall portions 2a and 2b. Then, tighten the bolts of the support 1 on both side walls 2a and 2b.
The bolt hole 16 in the flat corner portion 13 of the shelf support member 12 is penetrated from the outside from the gap between the holes, and at the same time, the tips of the locking protrusions 17 protrude from the through holes 23 of the side walls 2a and 2b. are fitted into the lower ends of a pair of locking holes 6 on the support column 1 side, which are located at the same height as the bolts 7. In this state, by screwing the wing nuts 24 onto the bolts 7 protruding inwardly from the shelf support member 12, the both side walls 2a, 2b of the fixed shelf 2 are connected to the both side folded plate portions of the support 1. 5 and both sides 14 of the shelf support member 12.

By fixing the four corners of the fixed shelf board 2 to each of the fixed shelf board mounting positions (the protruding positions of the bolts 7) of the four pillars 1 using the above method, the four pillars 1
A rack equipped with three tiers of fixed shelf boards 2 that stably stands on its own is completed. When attaching the movable shelf board 3, insert the pair of shelf supports 18 into a pair of locking holes 6 at a selected arbitrary height among the locking holes 6 of each support column 1, as shown in FIGS. 11 and 12. Lock the locking piece 22 by fitting it from the inside and pushing it down,
By dropping the side walls 3a, 3b on both sides of the corner part of the movable shelf board 3 between the upper half part 19 of the shelf support 18 and the both sides folded board part 5 of the support 1 from above, the both side walls 3a, 3b are removed. is supported by the stepped portion 21 of the shelf support 18. With this method, by supporting the four corners of the movable shelf board 3 at the same height of each support 1 via the shelf supports 18, the movable shelf board 3 can be supported at any height in parallel with the fixed shelf board 2. I can do it. Of course, by changing the locking height of the shelf support 18 with respect to the support column 1, the support height of the movable shelf board 3 can be freely changed.

The locking hole 6 into which the locking protrusion 17 of the shelf support member 12 fits may be a round hole at the same level as the bolt 7.

(Operations and effects of the invention) The easy structure of the invention can be implemented as described above, and according to the configuration of the invention, the fixed shelf board is provided on the folded plate part 5 of the support. A pair of locking projections 17 that fit into a pair of locking holes 6
Since it is supported by the shelf support member 12 supported by the bolts 7 fixed to the pillar side, the supporting strength of the fixed shelf is sufficiently increased compared to the conventional shelf support structure, and the support strength of the fixed shelf is increased. It can be used as a sturdy rack that can withstand loads. Moreover, the shelf supports 18 for the movable shelf board can be easily and easily locked at any height by using the locking holes 6 of the folding plate parts 5 on both sides of the support, and the folding plate parts 5 on both sides are approximately equal to each other. Since they form a right angle, the shelf supports 18 that are locked to the locking holes 6 of the folded plate portions 5 via the locking pieces 22 are not easily removed, and the movable shelf board can be safely supported. .

Furthermore, the bolts 7 for fixing the fixed shelf board are fixed to the inside corners of the pillars, and the locking holes 6 are provided in the folded plate parts 5 on both sides of the pillars.
These bolts 7, bolt holes, or locking holes 6 are not visible from the outside of the column. Furthermore, the shelf support member 12, shelf support 18, etc. are fitted inside the corner portions of the shelf, so they are not easily visible from the outside.
Therefore, the overall appearance of the rack can be maintained in good condition. Further, due to the presence of the folded plate portion 5 for providing the locking hole 6 without exposing it to the outside of the column, the strength of the column itself and, by extension, the strength of the rack as a whole can be increased.

[Brief explanation of drawings]

Figure 1 is a schematic perspective view of the entire rack, Figure 2 is a cross-sectional plan view, Figure 3 is a vertical cross-sectional side view of a portion of the support, and Figure 4 is a schematic perspective view of the entire rack.
The figure is a sectional view taken along the line AA in FIG. 3, FIG. 5 is a sectional view taken along the line BB in FIG. 3, FIG. 6 is a perspective view of the shelf support member, and FIG. 7 is a perspective view of the shelf support. Fig. 8 is a cross-sectional plan view of the main part showing the fixed shelf support structure, Fig. 9 is a side view showing the corner part of the fixed shelf fitted with the shelf support member, and Fig. 10 is the same as Fig. 8. C-C line sectional view,
FIG. 11 is a cross-sectional plan view of essential parts showing the support structure of the movable shelf board, and FIG. 12 is a sectional view taken along the line DD in FIG. 11. 1... Support column, 2... Fixed shelf board, 2a, 2b...
Side wall portion of fixed shelf board, 3...Movable shelf board, 3a, 3b
... Side wall part of movable shelf board, 5 ... Folding board part, 6
... Locking hole, 7 ... Bolt, 12 ... Shelf support member, 15a ... Shelf support flange, 16 ...
Bolt hole, 17... Locking protrusion, 18... Shelf support, 21... Movable shelf support step, 22... Locking piece, 23... Through hole, 24... Wing nut.

Claims (1)

[Scope of utility model registration request] Bolts are fixedly protruded from the inner corners of the pillars having a substantially chevron-shaped cross section, and locking holes are provided in the folded plates folded inward from both sides of the pillars so that they fit into the inner corners of the fixed shelf boards. The combined shelf support member includes a pair of locking protrusions that penetrate through holes in the side walls on both sides of the shelf corner portion and fit into locking holes on both sides of the support, respectively, and a bolt that the bolt passes through. A hole is provided, and by tightening a nut screwed onto the bolt that protrudes inwardly from the bolt hole, both sides of the corner part of the shelf board are opened between the both side folded plate parts of the support column and the shelf board support member. The side wall portions are clamped and fixed, and the movable shelf board is supported by a shelf support having a pair of locking pieces that releasably engage locking holes provided at appropriate intervals in the folded plate portions on both sides of the pillar. Easy structure.