JP2017051401A - Knockdown shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knockdown shelf which compensates a reduction in strength in association with a storage space that allows articles to be taken in and out from the front along a floor surface and is formed below a bottom shelf board without adding many components while keeping compatibility with a conventional knockdown shelf to keep sufficient strength and can simplify a structure and the assembly work.SOLUTION: A knockdown shelf includes: four support rods 2 raised on a floor surface 1 by separating from each other in front-back and lateral directions; a pair of right and left side part connecting materials 7, 7 for connecting the support rods 2, 2 in the front-back direction to each other; a shelf board 8 supported by both side part connecting materials 7, 7; and a coupling metal fitting as binding means for preventing movements of the shelf board 8 and the respective side part connecting materials 7 in the lateral direction. A storage space 9 where articles can be taken in and out from the front along the floor surface is formed below the shelf board 8.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an assembly shelf, and more particularly, to an assembly shelf that can form a storage space in which a cart, a stocker, storage articles, and the like can be taken in and out at the lower part of the front surface while maintaining the strength of the shelf structure.

The conventional assembly shelf has four support columns on the floor surface that are vertically spaced apart from each other in the front-rear direction and the left-right direction. And by connecting the upper and lower parts of the left and right struts with front and rear connecting members facing in the left-right direction, forming a frame, In many cases, the side end portions of a plurality of shelf boards are respectively supported (see, for example, Patent Document 1 or 2).
In this case, each shelf board is only mounted on the shelf board receiving piece provided in the left and right side connecting members.

  Further, the lower front connecting member and the bottom plate in the assembly shelf as described above are omitted, and a cart, a stocker, a storage article, etc. can be taken in and out along the floor surface from the front below the bottom shelf. Some have formed a storage space (see, for example, Patent Document 3 or 4).

Japanese Patent No. 4568613 Utility Model Registration No. 2552786 Japanese Patent No. 4263821 Japanese Patent No. 4812062

  As in the assembly shelves described in Patent Documents 3 and 4, in the case where the storage space as described above is formed below the bottom shelf, the lower ends of the left and right columns in front are open. Since the strength of the frame is significantly reduced, in what is described in Patent Document 3, the front and rear columns are erected on the front and rear portions of the leg rod facing in the front-rear direction, the rear ends of the left and right leg rods, Further, the left and right support columns are firmly fixed to each other with a plurality of horizontal ribs facing in the left-right direction. By connecting the end part with a connecting member so as to maintain a right angle, a U-shaped connecting frame opened in front is formed and fixed to the corner part and the front end part of the side connecting member. An assembly shelf can be obtained by locking each column to the extension member. And so as to increase the strength of the body.

  Therefore, in the products described in Patent Documents 3 and 4, not only the number of parts is large, the structure is complicated, and the assembly work is complicated, but also an existing assembly shelf as described in Patent Document 1 is used. Is no longer compatible with it, leading to increased costs.

  The present invention has been made in view of the above-described problems of the prior art, and maintains many parts while maintaining compatibility with a conventional assembly shelf as described in Patent Document 1. Without adding, it is possible to compensate for a decrease in strength due to the formation of a storage space in which articles can be taken in and out from the front along the floor surface below the bottom shelf, so that sufficient strength can be maintained. In addition, an object of the present invention is to provide an assembly shelf that can simplify the structure and the assembly work.

According to the present invention, the above problem is solved as follows.
(1) Supported by four struts erected on the floor surface separated from each other in the front-rear and left-right directions, a pair of left and right side connecting members that connect the front and rear struts to each other, and the both-side connecting members A storage space provided with a shelf board and restraining means for preventing the shelf board and each side connecting member from moving in the left-right direction, and under the shelf board, an article can be taken in and out along the floor surface from the front. Form.

According to such a configuration, the horizontal movement of the shelf board and each side portion connecting material is restrained by the restraining means, and the shelf board is adopted as a part of the strength maintenance member of the assembly shelf, It is possible to increase the strength of the product, and while maintaining compatibility with the conventional assembly shelf, it is possible to move the article from the front to the floor below the bottom shelf without adding many parts. It is possible to compensate for a decrease in strength due to the formation of a storage space that can be taken in and out, and to maintain a sufficient strength.
Moreover, the structure and assembly work can be simplified.

(2) In the above item (1), the restraining means includes an engagement piece that engages with an engaged portion provided on the side connecting member, and a fixing piece that is coupled to the shelf plate. It shall be equipped with.

  According to such a configuration, the restraining means can be formed by a simple fitting fitting having an engagement piece and a fixed piece, and not only the structure can be simplified but also the engagement piece can be connected to the side connecting member. Since it is only necessary to engage with the engaged portion and fix the fixing piece to the shelf board, the assembling work is also simple.

(3) In the above item (2), the shelf plate includes a hanging piece that hangs down from the front end and a folded piece that faces rearward from the lower end thereof, and the engaging piece of the coupling fitting is connected to the side connecting member. When engaged with the engaged portion, the fixed piece is superposed on the folded piece, and the fixed piece and the folded piece are fastened with fastening means in the superposed portion.

  According to such a configuration, it is possible to simplify the attaching operation of the coupling metal to the side connecting member and to make the coupling portion between the coupling metal and the shelf board inconspicuous.

(4) In the above item (3), the side connection member has a shelf receiving piece facing inward from the lower end, the shelf is placed on the shelf receiving piece, and the coupling The bracket includes a side piece provided with an engagement piece that engages with an engaged part provided on the outer side surface of the side connecting member, and a shelf plate receiving piece of the side connecting member from a lower end of the side piece. A bottom piece facing inward through the lower side; an upright piece standing up from an inner end of the bottom piece inside the shelf receiving piece; and the fixed piece connected to the upper end of the upright piece. It shall be.

  According to such a configuration, the shelf plate can be placed on the shelf plate receiving piece of the side connecting member, and the fixing work of the fixing piece of the coupling metal and the shelf plate can be easily performed in a stable state.

(5) In the above item (4), the upright piece is inclined outward from the inner end of the shelf receiving piece of the side connecting member so as to overhang on the upper surface thereof.

  According to such a configuration, the side piece of the coupling metal is brought into contact with the outer surface of the side connecting member, and the rising piece inclined outward is engaged with the shelf receiving piece of the side connecting member. Since the metal fitting can be locked to the lower part of the side connecting member, it is convenient during assembly work.

(6) In the above (4) or (5), by opening the outer side surface of the side portion connecting member so as to open rearward, an opening facing rearward is defined as the engaged portion, The engagement piece in the coupling fitting is inserted and engaged from behind.

  According to such a structure, after engaging a coupling metal fitting with the lower end part of a side part connection material, it moves ahead, and an engagement piece is an opening which is an engaged part in the outer surface of a side part connection material. In addition, it can be easily engaged from the rear, the assembly work can be easily performed, and the engaged portion can be easily formed.

(7) In any one of the above items (1) to (6), a plurality of side connecting members are erected between the front and rear columns so as to be spaced apart from each other in the vertical direction. The end portions are respectively supported by the right and left side connecting members having the same height, and the movement in the left and right direction between the bottom shelf and the side connecting member supporting the same is restricted by a restraining means.

According to such a configuration, the lowermost shelf board and the side connecting material that supports it are only restrained by the restraining means, and the lowermost shelf board is adopted as a part of the strength maintenance member of the assembly shelf. In addition, the strength of the assembly shelf can be increased.
What is necessary is just to restrain another shelf board and the side part connection material which supports it by a restraint means as needed.

  According to the present invention, a storage space in which articles can be taken in and out from the front along the floor surface below the bottom shelf without adding many parts while maintaining compatibility with the conventional assembly shelf. It is possible to provide an assembly shelf that can compensate for a decrease in strength due to the formation of the substrate, maintain a sufficient strength, and simplify the structure and the assembly operation.

It is the perspective view which looked at one Embodiment of the assembly shelf of this invention from the front upper right. Similarly, it is an expansion disassembled perspective view of the coupling | bond part of a front support | pillar, a side part connection material, and a shelf board. Similarly, it is explanatory drawing which shows the coupling bracket attachment procedure in the part similar to FIG. Similarly, it is explanatory drawing which shows the condition at the time of attachment of the urea screw in the part similar to FIG. Similarly, it is an enlarged front view of the same part as FIG. It is a cross-sectional plan view in the VI-VI line of FIG. It is a vertical front view in the VII-VII line of FIG. It is a vertical side view in the VIII-VIII line of FIG.

Hereinafter, an embodiment of an assembly shelf of the present invention will be described with reference to the drawings.
As shown in FIG. 1, this assembly shelf is composed of four columns 2 erected on the floor 1 separated from each other in the front and rear and left and right sides, and the side connecting the upper and lower portions of the front and rear columns 2 and 2. From the part connection material 3, the rear connection material 4 that connects the upper portions and the lower portions of the left and right support columns 2 and 2 at the rear, and the front connection material 5 that connects the upper portions of the left and right support columns 2 and 2 at the front A frame 6 is provided.
The connecting structure and assembling method of the constituent members of the frame 6 are not directly related to the present invention, and thus detailed description thereof is omitted.

  This frame 6 forms the main part of the strength maintaining member in the assembly shelf, but the lower portions of the left and right support columns 2, 2 are not connected by the front connecting member 5, so that the strength is sufficient. I can't say that.

The intermediate portions of the front and rear columns 2 and 2 are connected to each other by a plurality of side connecting members 7 that are separated from each other in the vertical direction.
The side connecting member 7 has a different shape from the side connecting member 3 that connects the upper and lower portions of the front and rear support columns 2 and 2, but may be the same shape.

Side end portions of the shelf board 8 are supported by the side connecting members 7 and 7 having the same height facing the left and right, respectively.
In this example, the shelf board 8 has four stages, and a cart, a stocker, a storage article, etc. (all not shown) can be taken in and out along the floor surface 1 from the front below the bottom shelf board 8. A storage space 9 is formed.

Next, with reference to FIGS. 2-8, the relationship between the shelf board 8, the side part connection material 7 which supports it, and the support | pillar 2 is demonstrated in detail.
Each strut 2 has a substantially U-shaped cross-section in the plan view in which the front one opens rearward and the rear one opens frontward, and the left and right side surfaces have a lower width smaller than the upper width. The plurality of substantially inverted trapezoidal engagement holes 10 are arranged at equal intervals in the vertical direction.

  Each side connecting member 7 is formed by bending a vertical base piece 7a that is long in the front-rear direction and a right angle outward from the upper end of the base piece 7a, and making the front-rear length shorter than the front-rear length of the base piece 7a. The outward bent piece 7b that is made to enter between the opposing surfaces of the front and rear columns 2 and 2 is bent at a right angle inward from the lower end of the base piece 7a, and the side end portion of the shelf board 8 is supported. A shelf plate receiving piece 7c and a side end of the shelf plate 8 which is bent at a right angle in a plan view inward from the front and rear ends of the base piece 7a and placed on the shelf plate receiving piece 7c. It comprises a short inward projecting piece 7d (the rear one is not shown) that prevents the side plate 7 from moving in the front-rear direction by sandwiching the part from the front and rear.

  At the front and rear ends of the base piece 7a, two upper and lower locking pieces 11, 11 that can be locked in the engagement holes 10 provided on the inner side surfaces of the front and rear columns 2, 2 are cut outward and downward. It is raised (the rear one is not shown).

On the inner side of the base piece 7a in the front-rear direction than the locking pieces 11, 11, a cut-and-raised piece 13 in which an opening 12 is formed in the front-rear direction by projecting in a trapezoidal shape outward (the rear one is (Not shown) is provided.
The front end of the front cut-and-raised piece 13 is brought into contact with the rear surface of the front column 2 and the rear end of the rear cut-and-raised piece (not shown) is brought into contact with the front surface of the rear column 2 so that the front and rear The support columns 2 and 2 are prevented from moving inward with respect to each other.
Further, the rear opening 12 in the front cut and raised piece 13 forms an engaged portion that engages an engagement piece 18 in a coupling fitting 16 to be described later by inserting it from the rear.

  Suspension holes 14 and 15 for suspending the side connecting member 7 during painting are provided at the front and rear end portions of the outward bent piece 7b in the side connecting member 7 and the front and rear end portions of the shelf receiving piece 7c. It is provided (the rear one is not shown).

  Each of the side connection members 7 has a front end of the front cut-and-raised piece 13 in contact with the rear surface of the front column 2 and a rear end of the rear cut-and-raised piece (not shown) in contact with the front surface of the rear column 2. In addition, the front and rear ends of the base piece 7a are brought into contact with the inner side surfaces of the front and rear supports 2 and 2 so that the outward bent piece 7b enters between the front and rear supports 2 and 2, and the base piece The two locking pieces 11, 11 provided at the front and rear ends of 7 a are fitted into the engagement holes 10, 10 formed on the inner side surfaces of the front and rear support columns 2, 2 and having the same height. , And are firmly locked to the front and rear columns 2 and 2 by being locked to the lower edge thereof.

Each shelf plate 8 includes a horizontal upper surface plate 8a, a side piece 8b that hangs from the left and right side edges thereof, a hanging piece 8c that hangs from the front end of the upper surface plate 8a, and a folded piece 8d that faces rearward from its lower end, It has a short standing piece 8e that stands up from its rear end.
At the rear end of the upper surface plate 8a, there are provided hanging pieces, folded pieces and standing pieces that are symmetrical with the hanging piece 8c, the folded piece 8d and the standing piece 8e at the front end, which are directly related to the present invention. Therefore, illustration and detailed description are omitted.

  Each shelf 8 is placed on the shelf receiving piece 7c so that the left and right end portions are sandwiched between the front and rear inwardly projecting pieces 7d and 7d of the left and right side connecting members 7 and 7 that are the same height. By being placed, the frame 6 is stably supported.

  If the left and right end portions of the shelf board 8 are merely placed on the shelf board receiving pieces 7c in the left and right side connecting members 7, 7, the shelf board 8 does not become a strength maintaining member of the assembly shelf, It is only a member supported by the frame 6.

  Therefore, in this embodiment, the lowermost shelf board 8 and the left and right side connecting members 7 that support the shelf board 8 are coupled by the coupling bracket 16 that forms a restraining means, and their lateral movement is prevented. Thus, even if the lowermost shelf 8 is a part of the strength maintaining member located in the middle portion of the frame 6 in the vertical direction, and the storage space 9 is formed below the lowermost shelf 8, While preventing the lower ends of the front left and right support columns 2 and 2 from expanding, it is possible to prevent all the support columns 2 from swinging in the left and right direction, thereby increasing the strength of the entire assembly shelf. .

  The coupling fitting 16 passes through a side piece 16a that faces the outer surface of the side connecting member 7 in the vertical direction, and a lower end of the side piece 16a from below the shelf receiving piece 7c of the side connecting member 7. The bottom piece 16b facing inward, the upright piece 16c rising from the inner end of the bottom piece 16b on the inner side of the shelf receiving piece 7c, and the horizontal fixed piece 16d connected to the upper end of the upright piece 16c It has become.

  A square notch 17 that is recessed backward is provided at the middle portion in the vertical direction of the front edge of the side piece 16a, so that the front upper portion of the side piece 16a is an engaged portion in the side connecting member 7. An engagement piece 18 facing forward is formed so that it can be engaged with the opening 12 behind the cut and raised piece 13 from behind.

The bottom piece 16b has a trapezoidal shape in plan view in which the front edge protrudes forward as it goes inward from the lower end of the side piece 16a. The upright piece 16c rising from the inner end of the bottom piece 16b When inserted into and engaged with the opening 12 of the connecting member 7 from the rear, it is inclined outward and upward so as to overhang from the inner end of the shelf receiving piece 7c of the side connecting member 7 on its upper surface. is there.
As described above, when the upright piece 16c is inclined outward and upward, the side piece 16a of the coupling fitting 16 is brought into contact with the outer surface of the side connecting member 7, and the outwardly inclined upstanding piece 16c is connected to the side part. By engaging with the shelf receiving piece 7c of the material 7, the coupling fitting 16 can be locked to the lower part of the side connecting member 7, so that the assembling work becomes easy.
The standing piece 16c may be vertical.

  The fixed piece 16d has a lateral width that increases toward the front, the front end protruding forward from the upright piece 16c has a square shape in plan view, and a screw insertion hole 19 that is directed in the vertical direction is provided at the center thereof. A square nut 20 in which the screw hole 20a is aligned with the screw insertion hole 19 is fixed to the upper surface of the fixed piece 16d by welding.

  The distance from the upper surface of the bottom piece 16b to the lower surface of the fixed piece 16d in the coupling metal 16 is the thickness of the shelf plate receiving piece 7c in the side connecting member 7 and the lower surface of the folded piece 8d in the shelf plate 8 to the upper end of the standing piece 8e. Is approximately equal to the sum of the distances.

Next, how to attach the coupling fitting 16 will be described.
The left and right side connecting members 7 and 7 are attached to the front and rear support columns 2 and 2 as described above, and the shelf holders 7c and 7c of the left and right side connecting members 7 and 7 are attached to the bottom shelf. After the left and right side end portions of the plate 8 are placed as described above, the side piece 16a is horizontal at the lower side and the fixed piece 16d is formed as shown in FIG. In the above state, the horizontal side piece 16a is moved outward from the inner side of the side connecting member 7 while being in sliding contact with the lower surface of the shelf plate receiving piece 7c. As indicated by B in FIG. 3, after the inner end of the shelf receiving piece 7c comes into contact with the bottom piece 16b of the fitting 16, the bottom piece 16b is brought into sliding contact with the inner end of the shelf receiving piece 7c and lowered. While rotating, the entire coupling fitting 16 is rotated 90 degrees clockwise around the axis facing the front-rear direction as viewed from the front, 3, the side piece 16 a is brought into contact with the outer surface of the base piece 7 a in the side connecting member 7, and the bottom piece 16 b is brought into contact with the lower surface of the shelf receiving piece 7 c in the side connecting member 7. Let

  Next, in the state as it is, the side piece 16a is slid forward along the outer surface of the base piece 7a in the side connecting member 7 and the bottom piece 16b is moved forward along the lower surface of the shelf receiving piece 7c in the side connecting member 7. While moving, the entire fitting 16 is moved forward, and the engaging piece 18 is inserted into the opening 12 in the side connecting member 7 from the rear to be engaged.

On the way, the front end portion of the fixed piece 16d in the joint fitting 16 moves forward through the upper end of the upright piece 8e in the shelf plate 8, and as shown by D in FIG. When the combined piece 18 is completely inserted and engaged with the opening 12 in the side connecting member 7, the front end portion of the fixed piece 16d is located above the folded piece 8d in the shelf plate 8 by the height of the upright piece 8e. The screw insertion hole 19 in the fixed piece 16d and the screw hole 20a in the nut 20 are provided on both sides of the folded piece 8d in the shelf plate 8 at the center of the overlapping portion. It aligns with the screw insertion hole 21 which is a suspension hole for use.
The screw insertion hole 21 is a circular hole here, but may be a long hole in the left-right direction.

  After that, as shown in FIG. 4, the male screw portion 22a in the urea screw 22 in which the enlarged head portion 22b for the knob is connected to the lower end of the male screw portion 22a facing in the vertical direction is connected to the screw insertion hole 21 of the shelf board 8, The fixing piece 16d of the fitting 16 and the folded piece 8d of the shelf board 8 are interposed between the fixing piece 16d and the folded piece 8d of the shelf board 8 by screwing into the screw hole 20a of the nut 20 from below and tightening through the screw insertion hole 19 in the fitting 16. It is firmly tightened across the space formed by 8e.

  In some cases, the standing piece 8e on the shelf board 8 is omitted, and in this case, the fixing piece 16d of the fitting 16 is in direct contact with the upper surface of the folded piece 8d of the shelf board 8 and is tightened by the urea screw 22. Worn.

  The lowermost shelf 8 and the left and right side connecting members 7 that support it are strongly coupled to each other by the coupling fitting 16 and the urea screw 22 that is a fastening means, as described above. These movements in the left-right direction are prevented, so that a decrease in strength due to the formation of a storage space 9 in which articles can be taken in and out along the floor surface 1 from the front is provided below the bottom shelf 8. Sufficient strength can be maintained.

  In this embodiment, only the lowermost shelf board 8 and the left and right side connecting members 7 that support the shelf board 8 are restrained from moving in the left-right direction by the coupling bracket 16 that is a restraining means. If necessary, a restraining means may be provided between the other shelf board 8 and the left and right side connecting members 7 that support the shelf board 8 so as to restrain the movement in the left-right direction. .

The present invention is not limited only to the above-described embodiments, and can be implemented in various modified modes as follows, for example, without departing from the scope of the claims.
(1) The engaged portion, the restraining means, and the fastening means are configured other than the opening 13 of the cut-and-raised piece 13, the coupling bracket 16, and the urea screw 22 in the above embodiment.
(2) The suspension hole 15 provided in the shelf receiving piece 7c in the side connecting member 7, the screw insertion hole 21 provided in the folded piece 8d in the shelf 8, the screw insertion hole 19 and the nut 20 in the coupling bracket 16 The screw holes 20a are all aligned, and the male screw portion 22a of the urea screw 22 is inserted into the suspension hole 15 and the screw insertion holes 21, 19, and then screwed into the screw hole 20a of the nut 20 and tightened. The shelf receiving piece 7 c of the side connecting member 7, the folded piece 8 d of the shelf board 8, and the fixed piece 16 d of the coupling fitting 16 are fastened together.
(3) When it is not necessary to form the storage space 9, the lower part of the front left and right support columns 2, 2 is connected to the front of the rear connection member 4 that connects the lower parts of the rear left and right support columns 2, 2 to each other. A bottom plate (not shown) is placed on each of the bottom connection parts 3 and 3 and the lower rear connection member 4 on the bottom plate. The article can be placed on

DESCRIPTION OF SYMBOLS 1 Floor surface 2 Support | pillar 3 Side part connection material 4 Rear part connection material 5 Front part connection material 6 Frame 7 Side part connection material 7a Base piece 7b Outward bending piece 7c Shelf board receiving piece 7d Inward protrusion piece 8 Shelf board 8a Top plate 8b Side piece 8c Hanging piece 8d Folding piece 8e Standing piece 9 Storage space 10 Engagement hole 11 Locking piece 12 Opening (engaged part)
13 Cut-and-raised pieces 14, 15 Suspension hole 16 Coupling bracket (restraint means)
16a side piece 16b bottom piece 16c upright piece 16d fixing piece 17 notch 18 engagement piece 19 screw insertion hole 20 nut 20a screw hole 21 screw insertion hole 22 urea screw (fastening means)
22a male screw 22b enlarged head

Claims (7)

Four struts standing on the floor, separated from each other in the front-rear and left-right directions,
A pair of left and right side connecting members that connect the front and rear columns to each other;
A shelf board supported by the both side connecting members;
A restraining means for preventing movement in the left-right direction between the shelf plate and each side connecting member,
An assembly shelf characterized in that a storage space in which articles can be taken in and out along the floor surface from the front is formed below the shelf board.   The assembly according to claim 1, wherein the restraining means includes a coupling fitting having an engagement piece that engages with an engaged portion provided in the side connection member, and a fixing piece that is coupled to the shelf plate. shelf.   The shelf board has a hanging piece that hangs down from the front end, and a folded piece that faces rearward from the lower end thereof, and when the engaging piece of the coupling fitting is engaged with the engaged portion of the side connecting member. 3. The assembly shelf according to claim 2, wherein the fixed piece is superposed on the folded piece, and the fixed piece and the folded piece are fastened by fastening means in the overlapping portion.   The side connecting member has a shelf receiving piece facing inward from the lower end, the shelf plate is placed on the shelf receiving piece, and the coupling fitting is attached to the outside of the side connecting member. A side piece provided with an engagement piece that engages with an engaged part provided on a side surface, and a bottom piece that faces inward from the lower end of the side piece through the lower side of the shelf receiving piece of the side connecting member. 4. An assembly according to claim 3, further comprising an upright piece standing upright from an inner end of the bottom piece and an inner side of the shelf piece receiving piece, and the fixed piece connected to the upper end of the upright piece. shelf.   The assembly shelf according to claim 4, wherein the upright piece is inclined outwardly so as to overhang from the inner end of the shelf receiving piece of the side connecting member.   By cutting and raising the outer surface of the side connecting member so as to open toward the rear, the opening facing the rear is used as the engaged portion, and the engagement piece of the coupling fitting is connected to the rear from the rear. The assembly shelf according to claim 4 or 5, wherein the assembly shelf is inserted and engaged.   A plurality of side connecting members are installed between the front and rear columns so as to be spaced apart from each other in the vertical direction, and the side edges of the upper and lower shelves are supported by the left and right side connecting members having the same height. The assembly shelf according to any one of claims 1 to 6, wherein movement in the left-right direction between the lowermost shelf plate and the side connecting member that supports the shelf plate is restrained by restraining means.

Images