JP5366760B2 - Metal shelf and metal wagon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal wagon with excellent structural stability by preventing the inclination of supporters with respect to shelf boards. <P>SOLUTION: The metal wagon includes: the three shelf boards 3 which are formed by bending metal sheets and where the side pieces 6 are perpendicularly bent at the four sides of rectangular plate-like flat boards 4; and the four supporters 5 which are formed by bending metal sheets so as to support the three shelf boards 3, 3, 3 at a vertically required interval. In the supporters 5, lower support pieces 20, 20 are adjacently attached to the desired height portions on the inner surfaces 19 of both vertical pieces 15, 15 which are arranged perpendicularly to each other. The lower support surfaces 21, 21 arranged at the upper ends of the pieces are linearly extended in a horizontal state from the front ends to the base ends of the vertical pieces 15 and are the same in height. The four corner parts 12 of the shelf boards 3 are inserted into recesses 16 between both the vertical pieces 15, 15 in the supporters 5 thereby to enable the lower support surfaces 21, 21 to support the lower faces 25 of the corner parts 12. In the support state, the vertical pieces 15 and the side pieces 6 are fixed by bolts 59 which are put through bolt holes whose hole centers are coincident with each other. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a metal shelf and a metal wagon, and more particularly to a metal shelf and a metal wagon that can be easily assembled and are excellent in structural stability.

  Metal shelves generally called steel shelves and metal wagons with casters attached to the metal shelves are widely used in factories, offices, kitchens, and the like.

  This type of metal shelf or metal wagon a includes, for example, a plurality of shelves b that form a shallow rectangular box formed by bending a metal plate, as shown in FIGS. And four angled columns c, c, c, c, which are formed by bending a metal plate and support the plurality of shelf plates b at the required vertical intervals, and between the columns c, c Can be placed on the shelf b from any direction and can be taken out from any direction, so it is convenient to use. It is widely used.

  The basic structure of the metal shelf or metal wagon a will be described. As shown in FIGS. 22 (A) and 22 (B), four columns c, c, c, c having an L-shaped cross section are shown. The four corners f, f, f, f of the shelf b are fitted into the recess e between the two vertical pieces d, d, and the outer surfaces of the two side pieces g, g forming the corner f. h and h are brought into contact with the inner surfaces j and j of both vertical pieces d and d of the column c, and in this state, the opposing side piece g and the vertical piece d are fixed with a single bolt k. The bolt k is inserted into the bolt holes m and n that are concentrically provided in the side piece g and the vertical piece d, and the shelf plate b is attached to the column c by screwing and tightening the nut p. It was a fixed configuration.

  As described above, since the side piece g and the vertical piece d are fixed with one bolt k, there is an advantage that the number of bolt fixing points can be reduced and the assembly work such as a metal shelf can be made efficient. On the other hand, when a lateral force is applied in a state where articles are placed on these, the support column c tends to be inclined with respect to the shelf board b (that is, a metal shelf or the like is easily deformed into a diamond shape in a side view). There was a drawback. The column c is inclined in this way because the column c cannot be prevented from rotating around the axis of the single bolt k. Such a defect is more remarkable in the metal wagon a. This is because the caster collides with the stepped part when the wagon is pushed when trying to move the article on the metal wagon a, or when the wagon is running, or the caster fits into the groove and the wagon This is because when a sudden stop or the like is performed, a rapid force is applied to the support column c and the support column c is easily tilted.

  In view of this problem, the side piece of the shelf and the vertical piece of the column can be simply fixed with a single bolt to achieve efficient assembly work, but the column is prevented from tilting with respect to the shelf. For example, a metal plate shelf and a metal plate wagon disclosed in JP 2000-60656 A (Patent Document 1) are provided. The metal plate shelf and the metal plate wagon disclosed in this publication have the same basic configuration as described below.

  That is, as shown in FIGS. 23A and 23B, the shelf b is formed in a shallow box shape formed by bending edge pieces r on four sides of a flat plate q having a rectangular plate shape. The folded piece s is folded outward at the tip of the edge piece r, the folded piece s covers at least the upper half of the edge piece r, and the lower end t of the folded piece s is the lower end of the edge piece r. It was located slightly above u. The folded piece s is cut out in a rectangular shape at the corner corner v of the shelf b, so that the edge pieces r and r that are at right angles to each other are exposed, and at the center of each exposed portion w and w. Bolt holes x and x were provided.

  Further, the column c has an angled shape composed of two perpendicular pieces d and d orthogonal to each other, and when the portion z on the corner side of the column c is brought into contact with the corner v of the shelf b, FIG. As shown in B), the side surfaces a1 and b1 of the support column c are in close contact with the side surfaces c1 and d1 generated by cutting the folded pieces s and s, respectively.

  Then, both side surfaces a1 and b1 of the support column c are brought into close contact with the side surfaces c1 and d1 of the folded pieces s and s, and in this state, the bolt hole x provided in the exposed portion w of the edge piece r and the support column c. When the bolt hole e1 provided in the vertical piece d is aligned and the bolt k is inserted and fixed into the bolt holes x and e1, both side surfaces a1 and b1 of the column c and the side surface c1 of the folded pieces s and s are obtained. The support column c and the shelf board b are fixed in a state where d1 is in close contact. As a result, there was no room for the column c to tilt with respect to the shelf b.

  However, the side surfaces a1 and b1 of the column are brought into intimate contact with the side surfaces c1 and d1 of the folded pieces s and s from the viewpoint of manufacturing dimension setting, and also because of manufacturing dimension errors. Therefore, it is very difficult, and a slight gap must be generated between the side surfaces a1 and b1 of the support column c and the side surfaces c1 and d1 of the folded pieces s and s. Therefore, it is practically impossible to configure the column c so that there is no room for the column c to be inclined with respect to the shelf b, and there is a room for the column c to be inclined with respect to the shelf b.

  In the invention according to Patent Document 1, the vertical piece d of the support column c and the edge piece r of the shelf board b are provided in order to achieve efficient assembly work of the metal plate shelf and the metal plate wagon. However, when fixing this bolt, the bolt hole e1 on the column side and the bolt hole x on the shelf side are correctly aligned and the bolts are inserted into both bolt holes e1, x. It took work to do. However, the alignment of the bolt holes e1 and x is an unexpectedly troublesome work, and there is room for further improvement in order to improve the assembly work efficiency of metal plate shelves and the like.

  Further, in such metal plate shelves and metal plate wagons, since each shelf b is fixed to the column c only by the bolt k, the improvement of the stable support of the load of the shelf b is also improved. There was room.

  In this type of metal plate shelf, as other means for preventing the inclination of the column c with respect to the shelf plate b, there are a metal shelf device and a metal wagon according to Japanese Patent Application Laid-Open No. 2007-7066 (Patent Document 2). Is provided. This was intended to improve the technique disclosed in Patent Document 1. That is, in the metal plate shelf disclosed in Patent Document 1, the contact area between the side surfaces c1 and d1 of the folded piece s and the side surfaces a1 and b1 of the support column c is small, and the folded piece is formed. Since the rigidity of the peripheral wall of the shelf board is not so high, it has been proposed for the purpose of improving the strength of the metal plate shelf and the metal wagon according to Patent Document 1. As shown in FIGS. 24 (A) and 24 (B), the characteristic features of the structure are substantially the same as the cross section of the shelf board b having a shallow box shape, except for the corner part of the side wall f1 outside the side wall f1. In the state where the letter-shaped bent part g1 is formed and the end face h1 of the bent part g1 is in contact with the side surface j1 of the column c, the peripheral wall k1 of the shelf b and the inner surface part m1 of the column c are fastened with the bolt k. The contact area between the bent portion g1 and the support column c is increased to reliably prevent the inclination of the support column c.

  However, even in the metal shelf device and the metal wagon having such a configuration, as described with respect to Patent Document 1, the end surface h1 of the bent portion g1 having a substantially U-shaped cross section and the side surface j1 of the column c are completely connected. It was difficult to make it closely contact with each other, and a slight gap was inevitably generated between them. Therefore, it was difficult to prevent the column c from being inclined with respect to the shelf b.

  Other configurations that prevent tilting of the columns in a metal shelf or metal wagon include an assembly shelf disclosed in FIG. 11 of Japanese Patent Laid-Open No. 9-23935 (hereinafter referred to as Patent Document 3), An assembly shelf disclosed in FIG. 9 of Japanese Patent Laid-Open No. 53-98618 (hereinafter referred to as Patent Document 4) has been proposed.

  As shown in FIG. 25, the assembly shelf according to Patent Document 3 is provided with a notch in the upper and lower portions in the center portion in the width direction of both vertical pieces d and d of the pillar c having an angle shape, and a portion between the upper and lower notches The support projection n1 is formed by inflating the inside of the support projection n1, and the peripheral wall q1 of the shelf board b is supported from below by the upper end p1 of the support projection n1. Then, the shelf b is bolted to the column c via a mounting bracket r1 bent at a right angle, and the column c, the peripheral wall q1 of the shelf b, and the mounting bracket r1 are integrated with the bolt k. It was a fixed configuration.

  However, in the assembly shelf, the position of the support protrusion n1 has to be provided at an intermediate portion in the width direction of the vertical piece d. In addition, the portion between the upper and lower cuts is inflated. For this reason, the support of the peripheral wall q1 of the shelf b by the support projection n1 has to be in a point contact state, and there is a problem that the support of the shelf b is likely to become unstable. Further, since the shelf board b and the support column c are bolted via the special mounting bracket r1 separate from the shelf board b and the support column c, the fixing operation of the shelf board b and the support column c becomes complicated. In addition to the problem of poor assembly work efficiency, there was a problem that the assembly accuracy deteriorated as the number of parts increased.

  In addition, as shown in FIG. 26, the assembly shelf disclosed in Patent Document 4 has a support protrusion s1 projecting from the ends of both vertical pieces d and d of a column c having an angle shape, and the support protrusion s1 A configuration in which the lower end u1 of the peripheral wall surface t1 of the shelf board b is supported from below is employed, and as shown in FIG. 26B, the support column c and the shelf board b are separately manufactured. The structure fixed using the metal fitting v1 was employ | adopted.

  However, in such an assembly shelf, the peripheral wall t1 of the shelf b is only supported in a point contact state by the support protrusions s1 and s1 protruding at the tips of the vertical pieces d and d. There was a problem that the support state of the plate b was likely to be unstable. Further, since the column c and the shelf board b are fixed with the bolts w1 via separate mounting brackets v1, there is a problem that the assembly work efficiency is poor because the work of assembling the shelf is troublesome. In addition, there is a problem that the assembly accuracy deteriorates as the number of parts increases.

JP 2000-60656 A JP 2007-7066 A Japanese Patent Laid-Open No. 9-23935 JP-A-53-98618

  The present invention has been developed in view of the above-mentioned conventional problems, and can easily and reliably perform assembly work and can prevent the column from being inclined with respect to the shelf board. It is an object of the present invention to provide a metal assembly shelf that can be supported in an effort to improve manufacturing efficiency and reduce manufacturing costs, and to provide a metal wagon.

In order to solve the above problems, the present invention employs the following means.
That is, the metal shelf according to the present invention is formed by bending a metal plate and a plurality of shelf plates formed by bending the metal plate and supporting the plurality of shelf plates at a required vertical distance. The shelf board is formed in a shallow box shape by bending the side pieces at right angles at four sides of a flat plate having a rectangular plate shape or a square plate shape in plan view. The support column is bent so as to have an L-shaped cross section, and a lower support piece is provided adjacent to each other at a required height portion on the inner surface of each of the vertical pieces perpendicular to each other. The lower support surface provided at the upper end of the support piece extends linearly in a horizontal state from the tip of the vertical piece toward the base end thereof, and both the lower support surfaces are set at the same height. Further, the four corners of the shelf plate are inserted into the recesses between the vertical pieces of the support column in a state where the outer surface of the side piece is in contact with the inner surface of the vertical piece facing the side piece, The lower surface of the corner portion is supported from below by the lower support surfaces, and in the supported state, the opposing vertical piece and the side piece are provided through both of them so that the hole centers coincide with each other. It is characterized by being fixed by a bolt inserted through the bolt hole.

  In the metal shelf, the lower support piece is formed by folding projecting pieces that are projected in series at the tip of the vertical piece of the support to the inner surface side of the vertical piece, and the upper end of the folded piece is the lower support It is good to comprise so that a surface may be formed.

  In the metal shelf, the lower support piece has a protruding piece that is projected in series at the tip of the vertical piece of the support column between an inner surface side of the vertical piece and a front side portion of the inner surface of the vertical piece. It is preferable that the folded portion is folded back so that a space portion is formed, the tip end portion of the folded piece is brought into contact with the inner surface, and the upper end of the folded piece is used as the lower support surface.

  In the metal shelf, the lower support piece may be configured by attaching a metal plate piece to the inner surface of the vertical piece by welding.

  In each of the metal shelves, an upper support piece having an upper support surface provided at the lower end is provided on the inner surface of each of the two vertical pieces. The upper support surface is sandwiched from above and below with the lower support surface. It should be configured as a thing.

  A metal wagon according to the present invention is a metal wagon configured by using each of the metal assembly shelves described above, wherein a caster is attached to a lower end portion of the metal wagon and is movable. Is.

The present invention has the following excellent effects.
(1) When using a metal shelf or metal wagon according to the present invention, the four corners of the shelf are in the recesses between the two vertical pieces of the four columns, and the outer surface of the side piece of the shelf is It inserts in the state contact | abutted to the inner surface of the vertical piece facing a side piece. In addition to this, the lower surface of each corner is extended in a straight line in a horizontal state from the tip of the vertical piece to the base, and is brought into contact with adjacent lower support surfaces at the same height. The lower surface of each corner is supported from below in a line contact state with a long support length. In this state, the opposing side piece and the vertical piece are fixed by a bolt inserted through a bolt hole penetrating both. Therefore, even when a lateral force is applied to the support column with the article placed on the shelf plate, the support column can be prevented from rotating around the axis of the bolt, and the support column can be It is possible to prevent tilting.
For this reason, according to the present invention, just by fixing the shelf board and the column with bolts as usual, the ease of assembly similar to the conventional one can be achieved, but the inclination of the column is prevented and the structural stability is improved. It will provide excellent metal shelves and metal wagons.

(2) Further, since the lower surface of the corner portion is supported from below by the adjacent lower support surfaces, the metal shelf and the metal wagon according to the present invention can stably support the load. .

(3) Also, as long as the corner is inserted into the recess of the column and the lower surface of the corner is brought into contact with the adjacent lower support surfaces, the vertical piece of the column and the side piece of the shelf Both bolt holes provided in the case can be naturally matched, so that unlike the assembly shelves described in Patent Document 1 and Patent Document 2, fixing work with bolts can be easily performed, and metal It is possible to improve the efficiency of assembly work of shelves and metal wagons.

(4) Further, the metal shelf and the metal wagon according to the present invention do not require a separate mounting bracket as described in Patent Document 3 and Patent Document 4, and the shelf board and the column are directly bolted. You can assemble shelves and wagons just by fixing them. As a result, the assembly work efficiency can be improved, and not only can the number of parts be reduced to reduce the manufacturing cost, but also the shelves and wagons can be configured more accurately by the smaller number of parts. become.

(5) The lower support piece is configured such that the protruding pieces that are projected in series at the tip of the vertical piece are folded back in an inflated state on the inner surface side of the vertical piece, and the tip portion of the folded piece is in contact with the inner surface. In this case, since the lower support surface can be formed wide due to the presence of the bulging portion, the lower surface of the corner can be supported in a more stable state by the wide lower support surface.
Therefore, the load on the shelf can be supported in a more stable state. In addition, since stable support is obtained in this way, it is possible to more effectively prevent the column from tilting. Furthermore, since the lower support surface is formed wide, positioning of the shelf board when the shelf board is assembled to the support can be facilitated.

(6) In the case where an upper support piece having an upper support surface provided at the lower end on the inner surface of each of the vertical pieces is provided at the lower end with the corner portion between the lower support surface and the upper support piece, Due to the regulating action by the support surface, even when the support column tends to tilt, the tilt can be regulated smaller.

It is a perspective view which shows the metal shelf which concerns on this invention. It is a perspective view which shows the metal wagon which concerns on this invention. It is a disassembled perspective view of a metal wagon. It is the perspective view and partial sectional view which show a shelf board. It is a perspective view which shows the positional relationship of the corner | angular corner part of the shelf board fitted in the collar holding insertion part provided in the support | pillar, and this collar holding insertion part. The perspective view which shows the state which inserted the corner | angular part of the shelf in the holding insertion part of the support | pillar, the state which temporarily tightened the shelf and the support | pillar with the volt | bolt and the nut, and the state which finally tightened the shelf and the support | pillar It is. It is a support | pillar cross-sectional view which shows the structure of a lower support piece. It is a perspective view which shows a support | pillar. It is a fragmentary sectional view which shows the state which bolted the shelf board to the support | pillar. It is a perspective view which shows the state which installed the two support | pillars in the working surface when assembling metal wagons. It is a perspective view which shows the state which attached the lower end part of the three shelf boards to these two support | pillars. It is sectional drawing explaining the process of bolt-fixing a shelf board and a support | pillar. It is a perspective view which shows the metal wagon assembled by temporarily fastening the bolt. It is a top view which shows the state by which the corner | angular corner part of the shelf board was supported by the lower support surface adjacent on either side. It is the front view and side view of a metal wagon explaining that the pillar is prevented from tilting. It is a perspective view which shows the other aspect of a lower support surface. It is a perspective view which shows the other aspect of a lower support surface. It is a perspective view which shows the other aspect of a lower support surface. It is sectional drawing which shows the other aspect of a lower support surface and an upper support surface. It is sectional drawing which shows the other aspect of a lower support surface. It is a fragmentary sectional view which shows the other Example of the metal wagon which the upper end of a support | pillar protrudes above the uppermost shelf. It is the perspective view which shows the conventional common metal wagon, and its fragmentary sectional view. It is a fragmentary perspective view explaining the conventional metal plate wagon which prevents a support | pillar from inclining with respect to a shelf board. It is the fragmentary perspective view and fragmentary top view which show the other aspect of the conventional metal plate wagon which prevents a support | pillar from inclining with respect to a shelf board. It is a fragmentary perspective view which shows the other aspect of the conventional metal plate wagon which prevents a support | pillar from inclining with respect to a shelf board. It is the fragmentary perspective view and fragmentary sectional view which show the other aspect of the conventional metal plate wagon which prevents a support | pillar from inclining with respect to a shelf board.

  FIG. 1 shows a metal shelf 1a according to the present invention, and FIGS. 2 to 3 show a metal wagon 1b according to the present invention. The metal wagon 1b is movable by attaching a caster 2 to the lower end of the metal shelf 1a. Since the difference between the two is only the presence or absence of the caster 2, the following description will be made with the metal wagon 1b as a representative.

  The metal wagon 1b includes a plurality of shelf plates 3 formed by bending a metal plate, three in the present embodiment, and a plurality of shelf plates 3 formed by bending a metal plate. Are provided with four struts 5, 5, 5, 5 having an angle shape capable of supporting the at a vertical interval.

  As shown in FIGS. 4A and 4B, the shelf plate 3 is formed by bending a stainless steel plate having a thickness of 0.8 mm, for example, and is a flat plate 4 having a rectangular plate shape in plan view. The side pieces 6, 6, 6 and 6 are bent at right angles at the sides to form a shallow box. The vertical length of the side piece 6 is set to 35 mm, for example. In the present embodiment, as shown in FIG. 4B, the side piece 6 has an extended portion 10 that is extended in series at the tip 9 of the side piece main body 7 so that the inner surface 11 of the side piece main body 7 extends. It is folded inward at the tip side portion (width portion of about 1/3 of the width of the side piece 6), and is not injured at the tip of the side piece 6. Further, at the four corners 12, 12, 12, 12 of the shelf board 3, the side pieces 6, 6, 6, 6, 6, 6, 6, 6 are formed at right angles to the side pieces 6, 6. Bolt holes 13 and 13 are provided in the central portion of the width of the bolt. The diameter of the bolt hole 13 is set to 6.5 mm in this embodiment. Further, the long side length of the shelf board 3 is set to 600 to 1000 mm, for example, and is set to 750 mm in this embodiment. The short side length is set to 400 to 500 mm, for example, and is set to 500 mm in this embodiment.

  As shown in FIG. 5, the support column 5 is formed by bending, for example, a stainless steel plate having a thickness of about 1.5 to 2 mm so as to have an L-shaped cross section, and perpendicular to each other. It has pieces 15 and 15. And the corner 12 of the shelf 3 is in the recess 16 between the vertical pieces 15, 15 of the column 5, and the inner surface 19 of the vertical piece 15 where the outer surface 17 of the side piece 6 faces the side piece 6. It is made to fit in the state which contact | abuts. Further, left and right lower support pieces 20, 20 are provided adjacent to each other at required height portions of the inner surfaces 19, 19 of the vertical pieces 15, 15. Lower support surfaces 21 and 21 provided at the upper ends of the lower support pieces 20 and 20 extend in a straight line in a horizontal state from the distal end 22 to the proximal end 23 of the vertical pieces 15 and 15, Both lower support surfaces 21 and 21 are set at the same height, and support the lower surface 25 of the corner portion 12 from below as shown in FIG.

  In this embodiment, as shown in FIGS. 5 and 7, the lower support piece 20 is provided with rectangular plate-like projecting pieces 27 protruding in series at the front end 22 of the vertical piece 15. It is folded back to the inner surface side. In this embodiment, as shown in FIG. 7, the space is formed inside in an arcuate bulge state so that a space portion 30 is formed between the inner surface 19 of the vertical piece 15 and the front side portion 29. A tip portion 32 of the piece 31 is in contact with the inner surface 19. In the present embodiment, the lower support piece 20 formed of the folded piece 31 is considered in consideration of the stability of the support state of the shelf board 3 by the lower support surface 21 and the ease of bending work by the bender. The length in the horizontal direction is set.

  The height of the column 5 is set to, for example, 600 to 1100 mm, but is set to 770 mm in this embodiment. The width of the vertical piece 15 is set to 34 mm, for example, and the horizontal length of the lower support surface 21 is set to 10 to 15 mm, for example, and 15 mm in this embodiment. The maximum bulge amount L from the inner surface 19 of the vertical piece 15 of the folded base end portion (swelled portion) 33 of the protruding piece 27 is set to 6 mm, for example.

  Then, as shown in FIGS. 6A and 7, with the corner portions 12 supported by the lower support surfaces 21 and 21, the vertical pieces 15 and 15 are connected to the side pieces 6 and 6, respectively. Bolt holes 35 and 35 having the same diameter are provided so that the provided bolt holes 13 and 13 are aligned with the hole centers. In this embodiment, the bolt holes 35 and 35 are provided on the upper side of the front side portion of the lower support surface 21 in the length direction.

  In the present embodiment, as shown in FIGS. 3, 5, and 8, the support column 5 includes a shelf mounting portion 36 of the lower shelf 3a and a shelf mounting portion 37 of the middle shelf 3b. The corner portions 12 in a state of being supported from below by the lower support surfaces 21, 21 are formed on the inner surfaces 19, 19 of the vertical pieces 15, 15 between the lower support surfaces 21, 21. Upper support pieces 40, 40 having upper support surfaces 39, 39 sandwiched from above and below at the lower end are provided side by side. In the present embodiment, the lower support pieces 20 and 20 are formed in the same manner as described above, and the rectangular plate-like projecting pieces 41 projecting in series at the tip 22 of the vertical piece 15 are formed on the inner surface of the vertical piece 15. On the side, it is folded back, for example, in an arcuate bulging state so that a space portion 42 is formed between the front side portion 29 of the inner surface 19 of the vertical piece 15 and the tip portion 45 of the folded piece 43 is It is in contact with the inner surface 19. In the present embodiment, for example, as shown in FIG. 8, the lower support piece 20 and the upper support piece 40 are connected in series.

  As shown in FIG. 8, only the lower support surface 21 is formed by the lower support piece 20 in the shelf mounting portion 46 of the upper shelf 3c. As shown in FIGS. 2A and 9A, in the state in which the corner corner 12 is supported by the adjacent lower support surfaces 21 and 21, the shelf plate 3 is protected from injury at the upper end of the column. The upper end 47 (upper surface) slightly protrudes (for example, about 2 mm) from the upper end 49 of the column 5.

  And the attachment part 52 of the caster 2 is provided in the lower end 50 of each of the four support | pillars 5, 5, 5 and 5 which have the said structure through the lower end bottom face part 51, as shown in FIG. It is attached.

  However, when the metal wagon 1b is assembled using the three shelves 3, 3, 3 and the four support columns 5, 5, 5, 5 having such a configuration, as shown in FIG. Four corners of each of the lower shelf board 3a, the middle shelf board 3b, and the upper shelf board 3c with the recesses 16, 16, 16, and 16 of the support columns 5, 5, 5, and 5 facing inward. The corners 12, 12, 12, and 12 are fitted into the corresponding recesses 16, but in FIG. 3, the flat plate 4 functions as the bottom plate 53 of the lower shelf plate 3 a and the middle shelf plate 3 b. In the upper shelf plate 3c, the flat plate 4 functions as the top plate 55 and is opened downward. In the lower shelf 3a and the middle shelf 3b, the corner 12 is sandwiched between the lower support surface 21 and the upper support surface 39 as shown in FIG. 9B. It is supposed to be in a state. Further, the upper shelf 3c is supported by both lower support surfaces 21 and 21, as shown in FIG. 9A. In this state, a nut (for example, a cap nut) 61 is screwed and tightened to a bolt 59 that passes through the bolt holes 13 and 35.

  In order to perform such assembly more easily, it is preferable to assemble in the manner shown in FIGS. First, as shown in FIG. 10, two struts 5 and 5 are placed on a work surface 56 such as a floor surface at a required interval, and in this state, as shown in FIG. The corner plates 12 of the shelf boards 3a, 3b, 3c are fitted into the recesses 16. At that time, with respect to the lower shelf plate 3a and the middle shelf plate 3b, the corner portions 12a and 12b located on the left and right sides of the lower shelf plate 3a are formed between the lower support surface 21 and the upper support surface 39. It is inserted into the holding and fitting portions 57 and 57 (FIGS. 8 and 10). Thereby, the height position of the shelf boards 3 and 3 with respect to the two columns 5a and 5b is roughly determined. In this state, when the corner portions 12a and 12b are pressed against the adjacent lower support surfaces 21 and 21, bolts provided on the opposing side piece 6 and the vertical piece 15 as shown in FIG. The holes 13 and 35 are matched. Therefore, as shown in FIG. 12 (B), a bolt 59 is inserted into the bolt holes 13 and 35 from the outer surface side of the vertical piece 15 inward, for example, and protrudes on the inner surface side of the side piece 6. A nut (for example, a cap nut) 61 is screwed onto the shaft portion 60 and temporarily tightened.

  Thereafter, as shown in FIG. 13, the other two columns 5c and 5d are inserted into the recesses 16 and 16 at the corners 12 and 12 positioned on the left and right sides of the shelf plates 3a, 3b and 3c. And are attached to the shelf boards 3a, 3b, 3c. At that time, with respect to the lower shelf 3a and the middle shelf 3b, as shown in FIG. 9B, the corner portions 12c and 12d located on the upper left and right are connected to the lower support surface 21 and the upper support surface. 39 is inserted into the hook insertion portions 57 and 57 formed between the two. As a result, the height positions of the shelf boards 3a, 3b, 3c with respect to the two columns 5, 5 are roughly determined. In this state, when the corner portions 12c and 12d are pressed against the adjacent lower support surfaces 21 and 21, they are provided on the side piece 6 and the vertical piece 15 facing each other as shown in FIG. Bolt holes 13 and 35 are matched. Thus, as shown in FIG. 12B, a bolt 59 is inserted into both the bolt holes 13 and 35 from the outer surface side of the vertical piece 15 inward, for example, and protrudes from the inner surface side of the side piece 6. A nut (for example, a cap nut) 61 is screwed onto the screw shaft portion 60 and temporarily tightened.

  Thereafter, as shown in FIG. 2A, the four columns 5, 5, 5, and 5 are set upright, and each corner portion 12 is pressed downward to lower the lower surface 25 of the corner portion 12. As shown in FIGS. 9A and 9B, the adjacent lower support surfaces 21 and 21 are brought into contact (close contact) with each other in a line contact state. In this state, in the lower shelf plate 3a and the middle shelf plate 3b, a slight gap (about 0.4 mm) is generated between the upper support surface 39 and the upper end 47 of the corner portion 12. And the upper end (upper surface of the top plate 55) 47 of the upper shelf 3c is in a state of slightly projecting (about 2 mm) from the upper end 49 of the support column 5. In this state, as shown in FIG. 12C, when the cap nut 61 is finally tightened, a desired metal wagon 1b can be completed.

  In the present embodiment, as shown in FIG. 8, the lower support surface 21 and the upper support sandwich the corners 12 of the middle shelf 3b from above and below the support columns 5, 5, 5 and 5, respectively. A support surface set 63 composed of a surface 39 is provided in three upper and lower stages, and by selecting a required support surface set, the middle shelf 3b can be supported on the column 5 at a desired height. ing. In FIG. 2, it is supported by the middle support surface set 63a (FIG. 2).

  In the metal wagon 1b assembled in this way, as shown in FIGS. 14 and 6, the outer surface 17 of the side piece 6 and the inner surface 19 of the vertical piece 15 facing the side piece 6 are in contact with each other. In contact. In addition, as shown in FIGS. 8 to 9, the lower surface 25 of the corner portion 12 is supported by the lower support surfaces 21 and 21 in close contact with the adjacent lower support surfaces 21 and 21. However, this close state is fixed with bolts 59. If it adds about the shelf board support by these lower support surfaces 21 and 21, the lower surface 25 of the corner | angular corner part 12 is not supported by dot shape like above-mentioned patent document 3 and patent document 4, but the vertical piece 15 is. A lower support surface 21 extending linearly in a horizontal state from the distal end 22 toward the base end 23 is supported from below with a long length. As a result, a portion further away from the end portion 65 of the corner portion 12 can be supported by the lower support surface 21. The support state is fixed by the bolt 59.

  For this reason, when the metal wagon 1b having the above-described configuration is used, the column 5 is attached to the shelf board 3 even though the side piece 6 and the vertical piece 15 are only fixed by one bolt 59. It is possible to prevent tilting. More specifically, as shown in FIG. 14, the outer surfaces 17, 17 of the side pieces 6, 6 that are perpendicular to each other at the corner 12 are in contact with the inner surfaces 19, 19 of both vertical pieces 15, 15. In this state, the lower surface 25 of the corner 12 is supported by the lower support surfaces 21 and 21 in a line contact state, so that a load from the lateral direction is applied to the column 5 with the article placed on the shelf 3. In this case, the support column 5 can be prevented from rotating around the axis of the bolt 59, and the support column 5 can be prevented from being inclined with respect to the shelf board 3. For example, as shown in FIG. 15A, it is effective that the support column 5 is inclined in the direction of the arrow F1 or F2, or as shown in FIG. 15B, the support column 5 is inclined in the direction of the arrow F3 or F4. Can be prevented.

  In the present embodiment, as shown in FIG. 9, the corner corner 12 is sandwiched from above and below the lower support surface 21 with respect to the lower shelf 3 a and the middle shelf 3 b in the column 5. An upper support surface 39 is provided. Therefore, when the support column 5 tends to be inclined, the upper surface 47 of the corner portion 12 is brought into contact with the upper support surface 39, so that there is an effect that the inclination of the support column can be regulated to be smaller. More specifically, for example, when the wagon is pushed with a heavy object placed on the shelf 3, or when the metal wagon 1b is running, the caster 2 collides with a stepped portion or the caster 2 enters the groove. When the wagon is fitted and suddenly stopped, a sudden force is applied to the column 5, and the lower surface 25 and the lower support surface 21 of the corner corner 12 are deformed and the column 5 tends to tilt. In addition, since the upper surface 47 of the corner portion 12 hits the upper support surface 39, there is an effect that the inclination of the column can be regulated to be smaller.

  In the present embodiment, the upper support surface 39 as described above is not provided for the upper shelf plate 3c. However, as described above, the support column 5 is provided at the lower portion of the support column 5 serving as the base of the shelf. Therefore, even if the upper support surface 39 is not provided for the upper shelf 3c, it is possible to satisfactorily prevent the column from being tilted due to the sudden stop, etc. Thus, a stable metal wagon 1b can be configured.

  When the metal wagon 1b according to the present embodiment is used, the load of the article placed on the shelf board 3 is not supported by only the bolt, but is a linear lower support provided integrally with the column 5. Since the surface 21 is also supported, there is an advantage that the load on the shelf can be stably supported.

  However, in the present embodiment, when the lower support piece 20 is provided, the protruding pieces 27 (FIGS. 5 and 8) that protrude in series at the tip 26 of the vertical piece 15 of the column 5 are as shown in FIG. In addition, on the inner surface side of the vertical piece 15, the space piece 30 is folded back in a wide state so as to form a space 30 between the inner surface 19 and the front side portion 29 of the vertical piece 15. Since the structure in which the tip end portion 32 is brought into contact with the inner surface 19 of the vertical piece 15 is adopted, as shown in FIGS. 9 and 14, the lower support surface 21 of the wide corner surface 12 is more stable. Can be supported. And since the lower support surface 21 of the corner | angular corner part 12 can be supported by the wide lower support surface 21 in this way, the resistance force with respect to the inclination of the support | pillar 5 can be increased.

  In the present embodiment, the lower support piece 20 and the upper support piece 40 are both configured by folding the protruding pieces 27 and 41 (FIGS. 5 and 8) toward the inner surface side of the vertical piece 15. The strut has a double structure at the folded portion, and the rigidity of the strut can be increased accordingly.

The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.
(1) The shelf plate 3 may be formed by bending a metal plate, and may be folded outward at the upper end of the side piece 6, and the tip of the side piece 6 may be folded back. It does not have to be. The shelves 3 in the metal shelf 1a and the metal wagon 1b according to the present invention are attached to the columns 5, 5, 5, and 5 in a plurality of stages, and may be attached to the columns in two or four stages. is there. Moreover, the mounting state of the plurality of shelf boards 3 may be such that all the shelf boards are opened at the upper end or all the shelf boards are opened at the lower end according to the purpose of use of the metal shelf or the metal wagon. .

(2) The shelf board 3 may be formed in a square shape in plan view.

(3) When the support 5 is made of, for example, iron, the lower support piece 20 is a metal plate small piece 66 (thickness can be set to 1 to 4 mm, for example, as shown in FIGS. 16A and 16B). ) May be attached to the inner surface 19 of the vertical piece 15 by welding. Also in this case, as shown in FIG. 16C, the lower surface 25 of the corner portion 12 is supported by the lower support surfaces 21 and 21 from below. In FIG. 16C, a small metal plate piece 66 is attached to the inner surface 19 by welding, and upper support surfaces 39, 39 functioning in the same manner as described above are provided. In this case, the lower support surface 21 provided at the upper end of the metal plate piece 66 extends linearly in a horizontal state from the distal end 22 to the proximal end 23 of the vertical piece 15 as shown in FIG. It is good also as what you did. The lower support surfaces 21 and 21 are set at the same height.

  FIG. 17 shows a lower support constructed by welding a small metal plate 66 formed relatively thick (for example, about 3 mm) and having a tip formed on an arcuate surface 67 to the inner surface 19 of the vertical piece 15 by welding. A piece 20 is shown. Also in this case, as shown in FIG. 17B, the metal plate piece 66 may be extended in a straight line in a horizontal state from the distal end 22 to the proximal end 23 of the vertical piece 15. The lower support surfaces 21 and 21 are set at the same height. Also in this case, as shown in FIG. 17C, the lower surface 25 of the corner portion 12 is supported by the lower support surfaces 21 and 21 from below. In FIG. 16C, a small metal plate piece 66 is attached to the inner surface 19 by welding, and upper support surfaces 39, 39 functioning in the same manner as described above are provided.

  18 (A) and 18 (B), the inner surface 19 of the lower support piece 20 bent in an L shape is in a state where the outer surfaces 69 and 69 are in contact with the inner surfaces 19 and 19 of the vertical pieces 15 and 15. The lower support surfaces 21 and 21 are formed by being attached by welding to the lower support surfaces 21 and 21 extending linearly in a horizontal state from the distal end 22 of the vertical piece 15 toward the base end 23 thereof. Adjacent in height.

(4) FIGS. 19 (A), 19 (B), and 20 are bottom views formed by folding projecting pieces 27 and 41 that are projected in series at the tip 22 of the vertical piece 15 to the inner surface side of the vertical piece 15. 19 shows another embodiment of the support piece 20 and the upper support piece 40. In FIGS. 19A and 19B, the lower support piece 20 and the upper support piece 40 are placed on the inner surface 19 of the vertical piece 15. FIG. It is folded back in close contact.

(5) An upper support having an upper support surface 39 provided at the lower end on the inner surfaces 19 and 19 of the vertical pieces 15 and 15 so as to sandwich the corner 12 from above and below the lower support surface 21. In the case of attaching the piece 40, the restriction action by the upper support surface 39 enables the inclination of the support column 5 to be reduced even when the support column 5 tends to be inclined. In view of the fact that the column 5 is difficult to tilt as a whole if the tilt on the base side (the bottom shelf side) of the column 5 can be prevented, the upper support piece 40 is only with respect to the bottom shelf 3a. Sometimes provided.

(6) The upper end 49 of the column 5 may protrude above the uppermost shelf 3c, for example, as shown in FIG. In this case, in the same manner as described above, the upper support surface 39 which sandwiches the corner portion 12 from above and below the lower support surface 21 on the inner surfaces 19 of the vertical pieces 15 and 15 is the lower end. The upper support piece 40 provided in the can be attached.

(7) When the metal wagon 1b according to the present invention is configured, the caster 2 may be provided on the lower surface of the lowermost shelf.

(8) An adjuster for height adjustment may be provided at the lower end of the column 5 of the metal shelf according to the present invention.

DESCRIPTION OF SYMBOLS 1a Metal shelf 1b Metal wagon 2 Caster 3 Shelf 5 Pillar 6 Shelf side piece 12 Corner corner 13 Bolt hole 15 Vertical piece 16 Recess 17 Side piece outer surface 19 Vertical piece inner surface 20 Lower support piece 21 Below Support surface 35 Bolt hole 36 Shelf plate mounting portion 37 Shelf plate mounting portion 39 Upper support surface 40 Upper support piece 46 Shelf plate mounting portion 57 Support fitting portion 59 Bolt 61 Nut 66 Metal plate small piece

Claims (6)

Comprising a plurality of shelf plates formed by bending a metal plate, and four struts formed by bending the metal plate and capable of supporting the plurality of shelf plates at a required vertical interval;
The shelf plate is formed in a shallow box shape by bending side pieces at right angles on four sides of a flat plate that has a rectangular plate shape or a square plate shape in plan view,
The support column is bent so as to have an L-shaped cross section, and a lower support piece is provided adjacent to each other at a required height portion on the inner surface of each of the vertical pieces perpendicular to each other. The lower support surface provided at the upper end of the support piece extends linearly in a horizontal state from the tip of the vertical piece toward the base end, and the lower support surfaces are set at the same height,
Further, the four corners of the shelf plate are inserted into the recesses between the vertical pieces of the support column in a state where the outer surface of the side piece is in contact with the inner surface of the vertical piece facing the side piece, The lower surface of the corner is supported from below by the lower support surfaces, and in the supported state, the opposing vertical piece and the side piece are penetrated into both holes so that the hole centers coincide with each other. A metal shelf characterized by being fixed by a bolt inserted through a bolt hole.   The lower support piece is formed by folding back a plurality of protruding pieces that are projected in series at the tip of the vertical piece of the column to the inner surface side of the vertical piece, and the upper end of the folded piece forms the lower support surface. The metal shelf according to claim 1, characterized in that:   The lower support piece is formed with a space formed between the protruding pieces, which are projected in series at the tip of the vertical piece of the support column, on the inner surface side of the vertical piece and the front side portion of the inner surface of the vertical piece. 2. The metal-made metal according to claim 1, wherein the folded-back piece is folded back so that a tip end portion of the folded piece is in contact with the inner surface, and an upper end of the folded piece forms the lower support surface. shelf.   2. The metal shelf according to claim 1, wherein the lower support piece is configured by attaching a metal plate piece to an inner surface of the vertical piece by welding.   The upper support piece provided with an upper support surface at the lower end, which sandwiches the corner portion from above and below the upper support surface, is attached to the inner surface of each of the vertical pieces. The metal shelf in any one of 1-4.   A metal wagon configured using the metal assembly shelf according to any one of claims 1 to 5, wherein the metal wagon has a caster attached to a lower end portion thereof and is movable. Wagon made.

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