JPH0339054Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for attaching a shelf to a column at an arbitrary height and the height can be changed at any time.

[Conventional technology]

In a normal shelf, the height of the shelf board is constant, but depending on the size and shape of the items to be placed, it may be necessary to change the height of the shelf board in order to use the shelf effectively.

A device that meets this demand is, for example,
As described in Publication No. 25372, a variety of products are provided by domestic and foreign companies.

[Problem that the invention attempts to solve]

However, in conventional models, the fixed tube that fits on the outside of the support column and the support tube that supports the shelf board and fits on the fixed tube have both a truncated conical shape, so it is difficult to manufacture both and the outer surface of the support tube. It is troublesome to install the shelves,
In addition, the two may rotate relative to each other, causing an unpleasant sound to be generated from the fitting surface, or the support and the fixed cylinder may rotate together as a unit with respect to the support cylinder.

[Means for solving problems]

The present invention consists of a support column with a number of annular grooves cut at predetermined intervals on the circumferential surface of the shelf support device, and a pair of left and right half-cylindrical bodies that are fitted externally to the support column. It is equipped with a mutual engagement mechanism for relative positioning, and has a protrusion on the inner surface that engages with the annular groove of the strut,
a fixed cylinder provided with engaging protrusions at the lower portions of both opposite ends of the outer surface that protrude outward and whose width increases downward;
The above-mentioned problem is solved by consisting of a support tube that is fixed to the corner of the shelf board, removably fitted onto the fixed tube, and has an engagement groove cut into it that engages the engagement protrusion from above. This is what we are trying to achieve.

[Effect]

In the present invention, the fixed cylinder is made up of two half-cylindrical bodies in which the mutual engagement mechanism engages, and the protrusions engage with the annular grooves to hold onto both sides of the column. Since the engaging groove engages with the engaging protrusion by externally fitting, the opposing edges of the two half-cylindrical bodies are brought into close contact with each other and firmly engaged with the column, and the shelf board is supported by the column. , mutual rotation of the fixed cylinder and the support cylinder is prevented.

Furthermore, since each member does not have a truncated conical surface, manufacturing and attaching the shelf board to the support tube are easy.

〔Example〕

FIG. 7 shows an example of a shelf to which the present invention is applied, in which 1 is a support, 2 is a shelf board, and each support 1 has a number of annular grooves 3 cut therein at predetermined intervals. .

Reference numeral 4 denotes a cylindrical fixed cylinder, which is formed of a pair of left and right half-cylindrical bodies 5, and an engaging piece 6 extending in the circumferential direction is connected to one of the opposite ends of each half-cylindrical body 5. Similarly, a cut groove 7 into which the engagement piece 6 can fit is cut in the other side.

Furthermore, protrusions 8 that curve along the inner surface are formed at equal height locations on the inner surface of each half-cylindrical body 5, and protrusions 8 that are curved along the inner surface and protrude outwardly at the lower portions of both opposing ends of the outer surface. Equally sized engagement protrusions 9 are formed that expand.

Both half-cylindrical bodies 5 are held on both sides of the support 1 by engaging the opposing engagement pieces 6 with the cut grooves 7 and engaging the protrusions 8 with the same annular groove 3 of the support 1. As a result, a fixed cylinder 4 is formed.

Reference numeral 10 denotes a support tube having a cylindrical body to which the ends of the frame rods 2a at the corners of the shelf board 2 are fixed. An engagement groove 11 that is cut more closely engages with both engagement protrusions 9 of the fixed cylinder 4.

In the above-mentioned shelf mounting device, the protrusion 8 engages with the annular groove 3 and the engagement piece 6 engages with the cut groove 7, so that the two half-cylindrical bodies 5 are held on both sides of the support column 1. The supporting tube 10 is fitted onto the fixed tube 4 and the engagement groove 11 thereof
Since the engaging protrusion 9 engages with the cylindrical half body 5, the opposing edges of the cylindrical half body 5 are brought into close contact with each other and are firmly engaged with the column.
The shelf board 2 is supported by the pillar 1, and the fixed cylinder 4
The mutual rotation of the support tube 10 is prevented.

[Effect of idea]

As mentioned above, since each member of the device of the present invention does not have a frustoconical surface, it is easy to manufacture and attach the shelf to the support tube.

Also, since the fixed tube and support tube do not rotate relative to each other,
No unpleasant noise is emitted from the mating surface.

Moreover, the assembly of the shelf and the height adjustment of the shelf board can be easily performed without using tools or the like, and the appearance is also good.

[Brief explanation of the drawing]

FIG. 1 is an exploded front view of the device of the present invention, FIG. 2 is a front view when assembled, FIG. 3 is a view taken along the line A-A in FIG. 1, and FIG. 5 is a cross-sectional view taken along line C-C in FIG.
The figures are a sectional view taken along the line DD in FIG. 5, and FIG. 7 is a perspective view of a shelf to which the present invention is applied. 1... Support column, 2... Shelf board, 2a... Frame rod, 3...
...Annular groove, 4...Fixed tube, 5...Half cylindrical body, 6
...Engaging piece, 7... Cut groove, 8... Projection, 9...
Engagement protrusion, 10... Support tube, 11... Engagement groove.

Claims (1)

[Scope of utility model registration request] Consisting of a column with a number of annular grooves cut at predetermined intervals on its circumferential surface, and a pair of left and right half cylinders that fit around the column, the opposite ends are engaged with each other at appropriate positions for relative positioning. A fixing tube, which is equipped with a mechanism, has a protrusion on the inner surface that engages with the annular groove of the support, and has engagement protrusions at the bottom of both opposite ends of the outer surface that protrude outward and widen in width toward the bottom, and a corner of the shelf board. A shelf mounting device comprising a support tube which is fixed to a fixed tube, is removably fitted onto a fixed tube, and has an engagement groove cut therein which engages an engagement protrusion from above.