JP2007289549A - Shelf apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shelf apparatus having a simple structure, excellent strength and beautiful appearance. <P>SOLUTION: The shelf apparatus has L-shaped corner posts 1 and a plurality of stages of shelf boards 2. Each shelf board 2 has outer walls 5 surrounding four sides. Inner walls 6 are integrally formed on edges of the outer walls 5. The corner posts 1 and the outer walls 5 of the shelf board 2 are fastened with bolts 7 and nuts 8. Positioning projections 9 formed on the corner posts 1 and positioning holes 10 formed in the outer walls 5 are fitted for achieving strong structure of the shelf apparatus. The nuts 8 are concealed by the inner walls 6 for achieving beautiful appearance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shelf apparatus that supports a shelf board with corner posts. The shelf device of the present invention is not limited to a stationary type, but includes a wagon type equipped with casters.

  An open-type shelf device (steel shelf) having a square shape in plan view is often used to store and carry articles. As one type of this shelf device, there is a type in which a rectangular shelf plate in a plan view is fastened with bolts to an L-shaped corner post in plan view. In this type, the outer wall that overlaps the inner surface of the corner post is folded around the shelf plate. Forming.

  As a method of fixing the shelf board to the corner column with a bolt, a metal plate that overlaps the outer wall of the shelf board from the inside is used, and the outer wall of the shelf board is sandwiched between the corner column and the metal bracket (see, for example, Patent Document 1). And a type in which the outer wall of the shelf board is directly fastened with bolts and nuts.

The latter type of direct fastening has an advantage that the structure is simple, but there is a problem that rattling is likely to occur between the corner columns and the shelf board (that is, the rigidity is low). In particular, a wagon type shelf apparatus having casters has a problem of looseness because an inertial force acts on a fastening portion between a corner column and a shelf board when moved. As a means for solving this problem, Patent Document 2 discloses that the outer wall of the shelf plate (the outer wall in the terminology of the publication) is folded outward, or a separate metal plate is welded to the outer surface of the outer wall to hit the side end surface of the corner column. It is described that small pieces are provided on the outer wall.
Japanese Utility Model Publication No. 47-9722 Japanese Patent No. 3437988

  The invention of Patent Document 2 is intended to prevent the corner column from falling by abutting the end surface of the small piece against the side end surface of the corner column. In this case, when the small piece is fixed to the outer wall of the corner column by welding, Since the small piece can be firmly fixed to the outer wall and a thick plate can be used as the small piece, the fall prevention function (prevention function with backlash) is high, but the problem is that it takes time to weld and the paint is peeled off or distorted by welding. There is a problem that occurs.

  On the other hand, when the small piece is formed by folding the outer wall, there is no problem due to welding, but the small piece has only its upper end connected to the outer wall, so a horizontal load (corner strut) is applied to the lower end of the small piece. When a load is applied, the small piece is likely to be deformed, and there is a problem that there is a limit to increasing the strength. Moreover, although the thing of patent document 2 has a nut arrange | positioned on the inner surface of an outer wall, since this nut exposed, the problem that an appearance is bad, and the point that articles | goods may be caught also had a problem.

  The present invention has been made in view of such a situation, and provides a shelf apparatus having a more improved form in common with Patent Document 2 in that the outer wall of the corner column and the corner column are directly fastened. Is an issue.

  The shelf device of the present invention includes, as a premise, a plurality of corner columns and a metal plate shelf arranged in a space surrounded by the group of corner columns, and the corner columns are flat. On the other hand, the shelf plate includes a horizontally extending substrate and an outer wall bent around the substrate, and the end portion of the outer wall is used as a side plate of the corner column. They are in close contact and fastened with bolts. The invention according to claim 1 is characterized in that a positioning projection is provided on one of the side plate of the corner column and the outer wall of the shelf, and a positioning hole is provided on the other to fit the positioning projection exactly. I have to.

  According to a second aspect of the present invention, in the first aspect, the bolt is disposed such that the head is positioned outside the corner column, and a nut into which the bolt is screwed is disposed on the inner surface of the outer wall of the shelf board. The inner wall folded back toward the substrate is integrally formed at the front end of the outer wall of the shelf board, and there is a space for hiding the nut between the outer wall and the inner wall. A positioning projection protrudes from the side plate and a positioning hole is formed in the outer wall of the shelf plate. Since the protrusion is formed by bulging (extrusion) processing, the positioning protrusion and the positioning hole are located on the inner side (center line side) than the left and right edges of the corner column.

  In addition, although the shelf board of this invention is provided with the outer wall around the board | substrate, the shelf board may stand up from the board | substrate and may hang down downward. Needless to say, in the former case, the shelf board is in an open-up position, and the outer wall also functions to prevent the articles from falling.

  In the present invention, since the corner post and the shelf board are held in a relative posture by fitting the positioning projection and the positioning hole, it is possible to prevent the backlash between the corner post and the shelf board. In this case, since both the protrusion and the hole are easy to process, the cost does not increase.

  In addition, even if an external force that causes relative movement between the positioning projection and the positioning hole is applied, the positioning projection will not be crushed or the location of the positioning hole will not be broken. ). Furthermore, in Patent Document 2, there is a limit to the stopper function because the small piece and the corner post are just abutted at one place between the end faces, but in the present invention, the positioning protrusion and the positioning hole are the corner post. Since a plurality of portions can be provided in the portion where the shelf board overlaps, the stopper function can be remarkably increased. Also in this aspect, the robustness of the shelf device can be significantly improved.

  According to the second aspect of the invention, the inner wall also functions to reinforce and the rigidity of the shelf plate is increased, so that the entire shelf device can be made to have a more robust structure. Since it is hidden, the appearance is good and the article can be prevented from being caught on the nut. In general, since the corner column is thicker than the shelf plate in the shelf device, it is possible to form a high-strength positioning protrusion on the corner column by extrusion processing, which is preferable for increasing the rigidity of the shelf device. I can say that.

  Next, an embodiment of the present invention will be described with reference to the drawings.

(1). First embodiment (FIGS. 1 to 3)
1 to 3 show the first embodiment. The present embodiment is applied to a wagon type shelf apparatus, and the outline of the shelf apparatus is shown in the perspective view of FIG. The shelf apparatus includes four corner columns 1 having two side plates 1a orthogonal to each other in plan view, upper, middle, and lower three-level shelf plates 2 arranged between the groups of corner columns 1, and each corner column. The caster 3 is attached to the lower end of 1. The corner strut 1 can be manufactured by bending a strip steel plate, or a commercially available angle material can be used.

  The shelf board 2 includes a horizontally-planar rectangular substrate 4, an outer wall 5 rising upward from each side of the substrate 4, and an inner wall 6 connected to the upper end of the outer wall 5. Fastened to the corner post 1. This point will be described with reference to FIGS.

  2A is a partially broken plan view with the corner column 1 and the shelf 2 separated, and FIG. 2B is a partially broken plan view with the shelf 2 fastened to the corner column 1. 3A is a partial front view of the shelf device, and FIG. 3B is a cross-sectional view taken along line BB of FIG.

  The end of the outer wall 5 of the shelf 2 overlaps the inner surface of the side plate 1 a of the corner column 1, and both are fastened by bolts 7 and nuts 8. One side plate 1a of the corner column 1 and one outer wall 5 of the shelf plate 2 are fastened by one bolt 7 and one nut 8, and each side plate 1a of the corner column 1 and the shelf plate. The two outer walls 5 are positioned by two positioning protrusions 9 and positioning holes 10 respectively. The positioning protrusion 9 and the positioning hole 10 are formed in a circular shape (may be polygonal or elliptical).

  In the present embodiment, positioning protrusions 9 are provided on the side plates 1 a of the corner columns 1, and positioning holes 10 are formed in the outer wall 5 of the shelf 2. Further, the positioning projection 9 and the positioning hole 10 are provided near the outer end portion of the outer wall 5, and the bolt 7 and the nut 8 are arranged on the corner side, but the arrangement position and number of the bolt 7 and the nut 8, and The number and arrangement position of the positioning protrusions 9 and the positioning holes 10 can be set arbitrarily. For example, positioning protrusions 9 and positioning holes 10 can be provided at four locations surrounding the bolt 7.

  Although the thickness of the corner column 1 and the shelf board 2 differs depending on the size of the shelf device and the load resistance, the corner column 1 is generally thicker than the shelf board 2. And the positioning protrusion 9 of this embodiment is formed by supporting the corner support | pillar 1 with the die | dye which has a hole, and smashing it with a punch in that state, and protruding the meat of the corner support | pillar 1 in the location of the hole of die | dye. . Since the corner column 1 is thicker than the shelf 2, the corner projection 1 can be formed with a positioning projection 9 having a height enough to fit the positioning hole 10 of the shelf 2.

  The nut 8 is fixed to the inner surface of the outer wall 5 of the shelf board 2 by welding. As shown in FIG. 3B, the inner wall 6 of the shelf 2 is separated from the outer wall 5, so that the end portions of the nut 8 and the bolt 7 are hidden between the outer wall 5 and the inner wall 6. Space is vacant. In the present embodiment, the connecting portion 11 connected to the outer wall 5 of the inner wall 6 has a substantially flat posture. On the other hand, the lower end portion (free end portion) 6 a of the inner wall 6 is an inclined portion inclined toward the outer wall 5. In addition, each edge part of the connection part 11 of a shelf is cut and inclined by 45 degree | times by planar view, and the adjacent connection part 11 is mutually abutted.

  In the above configuration, the corner column 1 and the shelf board 2 are positioned by the positioning projection 9 and the positioning hole 10, and the positioning projection 9 and the positioning hole 10 have high resistance against the external force that attempts to deform the shelf device. Therefore, the shelf apparatus has a high-rigidity and sturdy structure.

(2) Second to fourth embodiments (FIG. 4)
FIG. 4 shows the second to fourth embodiments. Among them, in the second embodiment shown in (A), a circular window hole 14 is formed in the inner wall 6 of the shelf 2 so that the socket wrench 13 fitted in the nut 8 can be inserted and removed. In this example, since the nut 8 does not need to be welded, there is an advantage that the efficiency of the assembly work can be improved and the processing error can be absorbed.

  In 3rd Embodiment shown to (B), the positioning hole 9 is pierced in the side plate 1 of the corner support | pillar 1, and the positioning protrusion 9 is bulged and formed in the outer wall 5 of the shelf 2. FIG. Further, in the fourth embodiment shown in (C), in the case where the positioning hole 10 is opened in the side plate 1a of the corner column 1 and the positioning protrusion 9 is burred on the outer wall 5 of the shelf 2, the positioning protrusion 9 and the positioning hole 10 Is also used as a bolt insertion hole.

(3). Other embodiment (FIG. 5)
FIG. 5 shows another example of the cross-sectional shape of the shelf board 2. Among them, in the example shown in (A), the connecting portion 11 of the inner wall 6 is formed in an upwardly convex semicircular shape. In the example shown in (B), when the connecting portion 11 is formed in a semicircular shape with an upward convex as in (A), the lower end portion 6a is an obliquely upward inclined portion.

  In the examples shown in (C) and (D), the connecting portion 11 of the inner wall 6 is folded so as to overlap with the outer wall 5, and then inclined so as to increase the distance from the outer wall 5, and the lower end portion 6a. Is formed in an obliquely downward inclined portion. In (D), a narrow overlapping portion 6b that overlaps with the outer wall 5 is integrally provided at an obliquely downward lower end portion 6a.

  In the examples of (E) and (F), the connecting portion 11 is inclined obliquely downward, and the lower end portion 6a is inclined obliquely downward, and the width overlapping the outer wall 5 on the lower end portion 6a. A narrow overlapping portion 6b is provided. In the example of (E), the overlapping portion 6b extends upward, and in the example of (F), the overlapping portion 6b extends downward.

  In the examples shown in (G) and (H), the inner wall 6 has a slightly angular surface as a whole, and the lower end portion 6a has a horizontal posture. In the example shown in (G), the upward overlapping portion 6b is integrally formed with the horizontal lower end portion 6a, and in the example shown in (H), the downward overlapping portion 6b is integrally formed with the horizontal lower end portion 6a. Has been. The example shown in (I) is similar to (G), and the corners are rounder than in (G).

  In the example shown in (J), both the connecting portion 11 and the lower end portion 6a are formed in an arc shape. In the example shown in (K), both the connecting portion 11 and the lower end portion 6a are formed in a mountain shape in cross section, and in the example shown in (L), both the connecting portion 11 and the lower end portion 6a are formed in a trapezoidal shape in cross section.

  In the example shown in (M), ribs 15 extending in the horizontal direction are formed in multiple stages on the inner wall 6. When the rib 15 is provided, it may have a vertically long posture or may be formed on the outer wall 5. In the example shown in (N), a superposition part overlapping the outer wall 5 is formed on the inner wall 6 by forming a concave portion 16 in which the bolt fastening portion of the inner wall 6 is recessed in a trapezoidal shape. The outer wall 5, the inner wall 6 and the corner column 1 are fastened together with bolts 7 and nuts 8.

(4). Others The present invention can be embodied in various ways other than the above embodiment. For example, the number of shelves can be set arbitrarily. Moreover, the shelf apparatus may include other elements such as a drawer in addition to the shelf plates fastened with the structure of the present invention. A reinforcing frame can be fixed to the shelf.

It is a schematic perspective view of the shelf apparatus which concerns on 1st Embodiment. (A) is a partially broken plan view in a separated state, (B) is a partially broken plan view in an assembled state. (A) is a partial front view, (B) is a BB view sectional view of (A). It is a figure which shows 2nd-4th embodiment. It is a figure which shows other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Corner support | pillar 2 Shelf board 4 Board | substrate of shelf board 5 Outer wall of shelf board 6 Inner wall of shelf board 7 Bolt 8 Nut 9 Positioning protrusion 10 Positioning hole

Claims (2)

A plurality of corner columns, and a metal plate shelf disposed in a space surrounded by the group of corner columns, and the corner columns include two side plates crossed in plan view. On the other hand, the shelf board includes a horizontally extending board and an outer wall bent around the board, and the end of the outer wall is brought into close contact with the side plate of the corner column, and both are fastened with bolts. A device,
A positioning projection is provided on one of the side plate of the corner column and the outer wall of the shelf plate, and a positioning hole is provided on the other to fit the positioning projection exactly.
Shelf equipment. The bolt is arranged so that the head is located outside the corner column, and a nut into which the bolt is screwed is arranged on the inner surface of the outer wall of the shelf board, and at the tip of the outer wall of the shelf board, The inner wall folded back is integrally formed, and a space for hiding the nut is vacant between the outer wall and the inner wall,
Furthermore, a positioning projection is formed on the side plate of the corner post, and a positioning hole is formed in the outer wall of the shelf.
The shelf apparatus according to claim 1.

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