JPH0340165Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a telescoping rack whose left and right width can be changed and adjusted within a certain range.

[Conventional technology]

For example, Japanese Utility Model Publication No. 57-20028 and Japanese Utility Model Publication No. 57-20028,
No. 57-29652, No. 57-29653, and No. 57-29653, and
This method is known from Japanese Patent No. 52-17376.

FIG. 5 shows an example of this type of extendable shelf (Utility Model Publication No. 57-20028). In this case, the shelf width can be changed by arranging the hollow flat plate shelf 21 and the pipe shelf 22 on the left and right, and supporting one end of the pipe shelf 22 by the side end wall of the flat plate shelf 21 so that it can be taken in and out. The left and right ends of the pipe shelf 22 are integrally fixed by connecting bars 23 and 24, respectively.

[Problem that the invention attempts to solve]

As mentioned above, conventional extendable shelves do not cover the entire width of the shelf as a flat shelf, so there are restrictions on what can be placed on them. In addition, a structure is adopted in which a shelf in which the flat plate shelf 21 and the pipe shelf 22 are extendably connected becomes a simple strength member. Therefore, the weight applied to the shelf is concentrated at the connecting points, and these connecting points tend to be damaged early, making them easy and less durable. For example, in the one shown in FIG.
A load may be concentrated on the pipe support hole extending through the side end wall of the pipe 1, and the hole may be deformed into an oval shape. In addition, when a heavy object is placed on it, it tends to deform into an inverted U-shape with the connection point as a bending point.

[Purpose of invention]

This invention was proposed in order to solve the above-mentioned problems with telescoping racks, and by constructing the entire shelf width with shelf board members and increasing the strength of the telescoping racks. The main focus is to improve durability.

[Means for solving problems]

In the present invention, as shown in FIG.
By providing horizontal bars 5L and 5R connected to the vertical frames 3L and 3R separately from L and 2R, and connecting the horizontal bars 5L and 5R with each other in a telescopic manner, a telescoping rack frame with increased strength is created. It consists of

Specifically, horizontal bars 5L, 5R are provided oppositely protruding from a pair of left and right vertical frames 3L, 3R, and horizontal bars 5L, 5R are provided.
A rack frame 1 is constructed by fitting and connecting the 5Rs in a manner that allows expansion and contraction in the left and right width directions, and shelf board members 2L and 2R are formed on the rack frame 1 by dividing them into left and right sides.
support. In other words, the rack frame 1, which is the main strength member, is configured to be extendable and retractable to improve the strength of the extendable rack. And shelf board member 2
L and 2R are supported by the rack frame 1 so as to be able to expand and contract with each other in an overlapping position, and the entire width of the shelf is a plate-like shelf.

Moreover, in the overlapping part of the shelf board members 2L and 2R,
A downward facing side wall 8b with an engaging hole 9 is formed at the tip of the lower shelf member, and the engaging hole 9 is engaged and supported by the horizontal crosspiece, so that the shelf member can be easily attached to the frame 1. can be reliably supported.

It is preferable that the left and right horizontal bars 5L and 5R be formed of pipe materials having different diameters, but in some cases, they may be formed of shaped steel materials such as an L-shaped cross section or a C-shaped cross section. Also, the fitting length B between the horizontal bars 5L and 5R is determined by the shelf board member 2.
Setting the length to be larger than the overlapping length b of L and 2R is advantageous in terms of connection strength and assembly.

[Effect of idea]

As explained above, in the telescoping rack of the present invention, in addition to the shelf board members 2L and 2R, the vertical frame 3
Since the rack frame 1, which is a strength member, is constructed by providing the horizontal bars 5L and 5R on L and 3R, the structural strength of the rack can be improved and the rigidity can be increased, and most of the load acting on the shelf members 2L and 2R can be reduced. Horizontal beam 5L, 5
It is possible to prevent the load from being concentrated on the shelf board members 2L and 2R. Therefore, deformation of the shelf board members 2L, 2R due to concentration of load, etc., and inclination of the shelf board surface due to play in the connecting portions can be well prevented, and a telescoping rack with excellent durability can be obtained.

In particular, in the case of Lack, which is the subject of this invention,
Rack frame 1 itself must be able to stand on its own, and conventional hanging shelves tend to wobble back and forth and left and right, but as mentioned above, the rack frame 1 constitutes a strength member, and shelf board members are attached to it. Since it is supported, it is possible to obtain a telescoping rack with little wobbling and excellent rigidity.

In addition, the entire shelf width can be made up of plate-shaped shelves, allowing small items to be placed on them, and since the shelf members are engaged and supported by the horizontal crosspieces at the overlapped portions of the shelf members, the shelf members can be easily attached to the frame. can be supported.

〔Example〕

1 to 4 show embodiments of the present invention.

In FIG. 3, the telescoping rack of the present invention consists of a rack frame 1 and shelf board members 2L and 2R supported by the rack frame 1 and forming upper and lower shelves. The rack frame 1 has vertical frames 3L and 3R formed by bending pipes into a gate shape when viewed from the side, which are arranged to face each other left and right. It is connected like a child structure. The horizontal bars 5L, 5R are formed as a front and rear pair, and this pair is fixed to two upper and lower positions of the legs 4, 4 with a vertical interval in between.

In FIG. 1, the left and right horizontal bars 5L and 5R are made by cutting steel pipes into predetermined dimensions, and fixing nuts 6 to one end of each pipe by caulking, and bolts 7 that pass through the legs 4 laterally are attached to the outside. By screwing into the nut 6 from the side, the left and right horizontal bars 5L, 5R
are supported and fixed in a cantilevered manner to the vertical frames 3L and 3R, respectively. The outer diameter of the left side crosspiece 5L is set slightly smaller than the inner diameter of the right side crosspiece 5R when facing the figure, and the left side crosspiece 5L is supported by fitting inside the right side crosspiece 5R. By setting rack frame 1
can be expanded and contracted in the left and right width directions.

The shelf members 2L and 2R are press-formed thin steel plates into a downwardly opening box shape, and have different shapes on the left and right sides. That is, the right shelf member 2R
is slightly larger in left and right length than the right horizontal bar 5R,
It is formed into a box shape by a horizontally long rectangular top plate wall 8a whose front and rear length is set larger than between the legs 4, 4, and left and right side walls 8b, 8c and front and rear side walls 8d, 8e bent downward from the periphery of the top plate wall 8a.

Of these, the left and right side walls 8b, 8c are provided with crosspiece insertion holes 9, 9 at two locations, front and rear, respectively. By fitting the crosspiece insertion hole 9 of the right side wall 8c onto the fixed end of the right side crosspiece 5R, and slidably fitting the crosspiece insertion hole 9 of the left side wall 8b onto the left side crosspiece 5L, the right One shelf member 2R is engaged and supported by the rack frame 1. In this state, the shelf board member 2F can be moved left and right, but it does not move easily.

The left shelf member 2L is set to have a horizontal width less than one-third of the right shelf member 2R, and as shown in FIG. 2, its top wall 10a and front and rear side walls 10d , 10e are dimensioned to overlap the top plate wall 8a and front and rear side walls 8d, 8e of the right shelf member 2R in a substantially intimate manner from the outside. This shelf board member 2
L does not have a right side wall, and is formed only on the left side wall 10b, and the crosspiece insertion holes 11, which pass through the left side wall 10b at two places in the front and back, are externally connected to the fixed base end of the left horizontal crosspiece 5L. It is fitted.

In this embodiment, the left and right horizontal lengths of the left horizontal bar 5L and the shelf board member 2L are set to approximately 30 cm and 22 cm, respectively, so that the fitted length B of the left and right horizontal bars 5L and 5R is equal to the left and right shelf board members. It was set so that it was always about 7 cm larger than the polymerization length b of 2L and 2R.

The rack constructed as described above is used by changing the shelf width by pushing and pulling the left vertical frame 3L. For example, as shown in FIG. 4, when a drawable storage shelf 14 is housed on the opening side of the closet 13, the rack is placed in a dead space on the back side of the storage shelf 14. In that case, casters 15 are fixed to the organizing shelf 14, and items can be easily stored or taken out with the casters 15 completely removed from the closet 13.

The rack has a minimum shelf width when the left side wall 8b of the right shelf member 2R is in contact with the left side wall 10b of the left shelf member 2L, and from now on the left shelf member 2L
The shelf width can be expanded up to the left and right width of the shelf.

[Another Embodiment] Although the entire illustrated example has been described above, the present invention is not limited thereto.

For example, the top plate wall 8a of the right shelf member 2R can be supported on the right horizontal bar 5R. If there is a gap between the horizontal rail 5R and the top plate wall 8a as in the embodiment,
For example, a C-shaped rubber ring may be externally fitted onto the horizontal beam 5R, and the top plate wall 8a may be supported via this rubber ring.

The left side wall 8 connected downwardly of the shelf board member 2R
b, an inverted U-shaped crosspiece insertion hole 9 that opens downward may be formed, and the shelf board member 2R may be engaged and supported by the horizontal crosspiece 5L through the crosspiece insertion hole 9. The term "engaging hole 6" as used in the present invention includes the crosspiece insertion hole 9 as well.

The tip of the right horizontal bar 5R may be engaged and supported in the engagement hole 9 of the left side wall 8b of the shelf member 2R in the same manner.

The horizontal rail and shelf board members are divided into three parts,
It is also possible to form the connecting portion and the overlapping portion at two locations, one on the left and one in the middle.

In the case where the left and right horizontal bars 5L and 5R have different lengths, for example, the front right horizontal bars and the rear left horizontal bars are made of long pieces, so that the connecting points are shifted left and right between the front and rear pairs. You may choose to have one.

The top walls 8a and 10a of the shelf board members 2L and 2R may be formed of permeable punching metal.

If necessary, a retaining means may be added to the connecting portion of the horizontal bars 5L and 5R to create a structure in which the horizontal bars 5L do not slip out beyond the maximum shelf width.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional front view showing the expandable structure of the rack, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 4 is a perspective view of the rack, and FIG. 4 is a plan view showing the rack in use. FIG. 5 is a perspective view of a conventional telescopic shelf. 1... Rack frame, 2L, 2R... Shelf board member, 3L, 3R... Vertical frame, 5L, 5R...
Horizontal beam, 8b...Downward side wall (left side wall), 9...
Engagement hole (piece insertion hole).

Claims (1)

[Claims for Utility Model Registration] (1) A pair of left and right vertical frames 3L, 3R, and horizontal bars 5 protruding from the frames 3L, 3R in an opposing manner.
L and 5R constitute a rack frame 1, horizontal bars 5L and 5R are fitted and connected to each other so that they can be freely inserted and retracted in the left and right direction, and a pair of shelf board members 2L and 2R are divided into left and right sides.
are supported on the rack frame 1 so as to be expandable and retractable in an overlapping position, and a downward side wall 8b is formed with an engaging hole 9 at the tip of the lower shelf member at the overlapping part, and the engaging hole 9 is A telescoping rack in which the hole 9 is engaged and supported by the horizontal crosspiece. (2) The left and right horizontal bars 5L, 5R are formed of pipe materials with different diameters, and the protruding ends of these horizontal bars 5L, 5R are directly fitted and connected to each other, as set forth in claim 1 of the utility model registration claim. Telescoping rack. (3) The fitting length B of the horizontal bars 5L and 5R is the same as that of the shelf board member 2.
The telescoping rack according to claim 1 or 2 of the utility model registration claim, which is set larger than the polymerization length b of L and 2R.