JP2900724B2 - Fasteners and frame shelves with fasteners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener used for connecting a pair of members, a shelf installed in a factory, for example, for taking in and out a load by a forklift, and a shelf in an automated warehouse. It relates to a frame shelf using a fastener.

[0002]

2. Description of the Related Art Conventionally, as a frame shelf of this type, a structure as disclosed in, for example, JP-A-63-225011 is provided. In other words, truss supports are erected at predetermined intervals in the front and rear and left and right, and a loading table is provided between the front and rear truss supports, and rod-shaped braces and channel-shaped beams are arranged between the rear truss supports. doing.

[0003] When assembling a brace or a beam to a truss support, a brace mounting plate is fixed to the truss support by welding, and a bolt hole formed in the brace or beam is matched with a bolt hole formed in the brace mounting plate. After that, a bolt nut is applied between both bolt holes.

[0004]

In the above-mentioned conventional type, when a bolt screwed to a nut is tightened,
The bolts rotate together, preventing sufficient connection. In order to avoid this, a wrench (rotation stop) is hung on the nut and tightened. However, as described above, if the nut is set from the inside to the recessed part with a channel-shaped beam, The wrench itself becomes difficult to assemble, and the assembly cannot be performed quickly.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bolt-nut type fastener which does not rotate, and a frame shelf using a fastener which can be easily and quickly assembled.

[0006]

Means for Solving the Problems] fasteners of the present first invention to achieve the above object, together forming the spring plate in the channel shape, in at least one of the plate portion, the clamping force
Forming an elastically deformable portion that is more elastically deformed , forming a through hole in the plate portion on which the elastically deformable portion is formed, and fixing a nut communicating with the through hole to the inner surface of the plate portion to form a nut body, A bolt that can be screwed into the nut through the through hole is provided. Further, the tightening device according to the second invention has an elastically deformable portion.
A pair of corners and a pair of opposed plate parts.
It has been formed.

In the frame shelf using the fastener according to the third invention, at least one of the first member and the second member constituting the frame shelf has a channel shape, and both members are
A bolt hole that communicates with each other when the channel is opened and assembled is used. To connect the assembled members, a tightening device including a nut body and a bolt is used.
The nut body has a molded body channel-shaped, the body of this <br/>, together freely constituting fitted before SL channel inner surface, on one of the plate portion opposite to the bolt holes, fastening
Forming an elastically deformable portion that is elastically deformed by an applied force , forming a through hole in the plate portion on which the elastically deformable portion is formed, and fixing a nut communicating with the through hole to an inner surface of the plate portion; Is configured to be screwable with the nut through the communicating bolt hole.

[0008]

According to the structure of the first aspect of the present invention, the nut body having the channel-shaped portion is fitted or fitted inside the channel-shaped member to connect the pair of members.
It can be set in a state where co-rotation is prevented. And bolts
When screwed into the nut and tightened,
As the elastically deformable part deforms, the fasteners become loose during use.
It can be prevented from trying by the elastic repulsion of the elastic deformation part
You. According to the second aspect of the present invention, the elastic deformation portion
The repulsive force can be applied at a plurality of places.

According to the structure of the third aspect of the invention , when assembling the frame shelf, first, the nut body is set at a predetermined position in one of the channel-shaped members. This is performed by fitting a nut body into the inner surface of the channel, in which case the fitting is performed against the elasticity of the elastically deformable portion, and thus the fitting posture can be maintained by the elastic repulsive force of the elastically deformable portion. The fitting allows the through hole of the nut body to match the bolt hole of one member.

Next, the outer surface of one member is applied to the other member, and the bolt holes of both members are aligned. In this state, the bolt is passed from the bolt hole of the other member to the bolt hole of one member, screwed into the nut, and tightened. At this time, the nut body tries to rotate in the co-rotation direction.
This can be prevented by at least one of the plate portions abutting the channel-shaped inner surface. Then, the elastically deformable portion is deformed by the tightening force, so that the tightening tool is prevented from loosening during use by the elastic repulsive force of the elastically deformable portion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 6, the frame shelf 1 has columns 10 erected at predetermined intervals in front and rear and left and right, and between the front and rear columns 10, a horizontal member 2 located between lower ends, They are connected and fixed to each other by a diagonal member 3 or the like. The left and right columns 10 are connected and fixed to each other by a horizontal beam (first member or second member) 20 that is continuous in the horizontal direction at a predetermined position, and a diagonal horizontal member (first member) is provided between the front and rear horizontal beams 20. Alternatively, they are connected and fixed to each other by a second member (30). Further, on the back side of the frame shelf 1, a rectangular mounting plate (first member or second member) 40 is provided at the intersection of the column 10 and the horizontal beam 20, and the brace 4 is formed between the mounting plates 40 in a cross shape. Attached to.

A load support 6 is provided between the front and rear columns 10. That is, to each of the struts 10, the arms 7 protruding in the horizontal direction toward the left and right struts 10 are detachably attached, and the arm arms rail 8 is connected between the free ends of the arms 7 facing front and rear. The left and right load supporting portions 6 formed by the arm 7 and the arm rail 8 are configured to support the load 9 via a pallet or directly support the load 9.

As shown in FIGS. 2 and 5, the column 10 has an outer plate 11 and an inner plate 12 and a left and right side plate 13 which face each other.
And a slit in the center of the inner plate portion 12 over the longitudinal direction.
By forming 14, a cross section is formed in a substantially C-shaped mold material shape. A pair of left and right connecting plate portions 15 are formed on the inner plate portion 12 so as to be bent 90 degrees outward from the edge of the slit 14 and protrude from each other along the slit 14. The column 10 having such a shape is erected with the slits 14 facing each other in the front-rear direction, and the end of the horizontal member 2 or the diagonal member 3 is inserted between the connecting plate portions 15 so that the bolts are inserted. Connected and fixed with nuts and rivets.

As shown in FIG. 1 to FIG.
Numeral 40 is provided at every predetermined number of columns 10 (every other column in the embodiment), and has a flange 42 on the inner surface side thereof with a spacer member 41 interposed therebetween.
Then, the two 42 and 11 are fixed to the support 10 by connecting them with a fixing tool 43 such as a bolt, a nut or a rivet. Through holes 44 are formed at the four corners of the mounting plate 40, and the through holes 5 formed at the ends of the brace 4 are aligned with the through holes 44. 5 are connected via bolts and nuts 45 acting on them. Further, a bolt hole 46 for connecting the horizontal beam 20 is provided on both sides of the mounting plate 40 and at an intermediate portion in the vertical direction.
Are formed in the thickness direction.

The horizontal beam 20 includes an upper plate 21, a vertical plate 22, and a lower plate.
The vertical plate 22 is formed in a channel shape with the free end of the vertical plate 22 in contact with the inner surface of the mounting plate 40. Bolt holes 24 are formed at both ends of the vertical plate 22 so as to match the bolt holes 46 of the mounting plate 40, and bolt holes 25 for connecting the oblique horizontal members 30 are formed at both ends of the upper plate 21. Have been.

The oblique horizontal member 30 is formed in a channel shape by an upper plate 31 and both side plates 32, and is disposed with its opening downward. At the end of the oblique horizontal member 30, the upper and lower plates 31 are left without the side plates 32, and the remaining portion is formed as a tongue piece 33 that can be placed on the upper plate 21 of the horizontal beam 20. .
Further, a bolt hole 34 is formed in the tongue piece 33 so that the bolt hole 34 can be aligned with the bolt hole 25 of the horizontal beam 20.

The connection of the horizontal beam 20 to the mounting plate 40 and the connection of the oblique horizontal member 30 to the horizontal beam 20 are performed through a common fastener 50. I.e. fasteners
Reference numeral 50 denotes a nut body 51 which is dense and elastically fittable into the lateral beam 20, and two (single or plural) bolts 52,
53.

The main body 54 of the nut body 51 is vertically
It is composed of a plate portion 56 and a lower plate portion 57 and is obtained by forming a spring plate into a channel shape. And in each of the plate portions 55, 56 and 57 (at least one plate portion), the elastic deformation portion 55a by projection outward, 56a, it forms a 57a. At that time the vertical plate part
The elastic deformation portion 56a of 56 is formed at a corner portion with the other plate portions 55 and 57.

The upper plate 55 (a plate having an elastically deformed portion formed thereon)
The portion) freely through hole 58 matching the bolt holes 25 of the transverse beam 20 is formed, freely conform to the bolt holes 24 of the transverse beam 20 to further vertical plate portion 56 (the plate portion forming the elastically deformable portion) Through holes 59 are formed. The securing nut 60 and 61 communicating with both through holes 58 and 59 on the inner surface of the two plates 55 and 56.

Here, the nuts 60, 61 are caulking nuts (curling nuts), and cylindrical caulking portions 60a, 61a are formed integrally from the inner edges of the screw holes. After being fitted into the through holes 58, 59, it is fixed to the inner surfaces of both plate portions 55, 56 by caulking outward. Further, a plurality of detent tongues 62, 63 are formed in the both plate parts 55, 56 by bending the remaining pieces when the through holes 58, 59 are formed. , by abutting the outer surface 61, these nuts 60 and 61 are both plate portions
It is stopped by 55 and 56 and fixed.

The nut body 51 is constituted by the above-mentioned 54 to 63. The bolts 52 and 53 are also
Through the nuts 8 and 59, the nuts 60 and 61 can be freely screwed. In assembling the frame shelf 1 in the above embodiment, first, a mounting plate 40 is connected to a predetermined portion of the support column 10 via a fixing tool 43. Then, the horizontal member 2 and the diagonal member 3 are arranged between the front and rear columns 10 and connected and fixed by rivets and the like, and the load support 6 is provided between the front and rear columns 10. Next, the mounting plates 40 are connected to each other by the brace 4 and the lateral beam 20, and
20 is connected by an oblique horizontal member 30.

That is, in order to connect the lateral beams 20, first, the nut body 51 is set at a predetermined position in the lateral beams 20.
This is performed by fitting the nut body 51 to the end of the lateral beam 20, and the fitting is performed by elastically deforming portions 55a, 56a, and 57.
Therefore, the fitting posture is maintained by the elastic repulsive force of the elastically deforming portions 55a, 56a, 57a. Then, the through holes 59 and 58 of the nut body 51 are aligned with the bolt holes 24 and 25 of the lateral beam 20 by fitting.

Next, the vertical plate 22 of the horizontal beam 20 is applied to the inner surface of the mounting plate 40 so that the bolt holes 24 of the horizontal beam 20 match the bolt holes 46 of the mounting plate 40. In this state, the bolt 53 is passed from the bolt hole 46 to the bolt hole 24 so that the nut 61
And tighten it. At this time, the nut body 51 tries to rotate in the co-rotation direction, but this is caused by the upper plate 55 and the lower plate 57.
Abuts against the inner surfaces of the upper plate 21 and the lower plate 23.
When the elastically deformable portion 56a is deformed by the tightening force, the tightening device 50 tries to loosen during use.
It can be stopped by the elastic repulsion of 56a.

In order to connect the horizontal beams 20 with the oblique horizontal members 30, first, the tongues 33 of the oblique horizontal members 30 are placed on the upper plate 21 of the horizontal beams 20, and formed on the tongues 33. The bolt holes 34 are aligned with the bolt holes 25 formed in the upper plate 21 of the cross beam 20. In this state, bolt 52 is removed from bolt hole 34 to bolt hole 25.
And screw it into the nut 60 and tighten it. At this time, the nut body 51 tries to rotate in the co-rotation direction,
The vertical plate portion 56 is blocked by contact with the inner surface of the vertical plate 22.
The elastic deformation portion 55a is deformed by the tightening force, so that the fastening device 50 tries to loosen during use.
It can be stopped by the elastic repulsion of 55a.

In the above embodiment, the horizontal beam 20, the diagonal horizontal member 30, and the mounting plate 40 are shown as the first member or the second member, but the tightening device of the first invention is a member in a structure other than the frame shelf 1. It can be used for connection between various members such as connection between them. Further, although the type in which the nut body 51 is set by fitting the nut body 51 is shown, the type in which the nut body 51 is set by fitting the nut body 51 outside may be used.

As shown in the above embodiment, by fixing the nuts 60 and 61 to the main body 54 by using the caulking portions 60a and 61a, the welding operation is not required and can be easily integrated. Body by welding normal nut
It may be integrated with the body 54, and in this case, it is not necessary to form a detent tongue on the body 54 side. In the above embodiment, the main body 54
Fig. 2 shows a form in which two nuts 60 and 61 are fixed, but this may be a form in which one or three or more nuts are fixed.

[0027]

According to the first aspect of the present invention, the nut member having the channel-shaped portion is connected to the inside of the channel-shaped member or externally fitted to connect the pair of members.
It can be set in a state where co-rotation is prevented, and it is not necessary to use a wrench, so that the members can be easily and quickly connected. And screw the bolt to the nut
When tightened, the elastic deformation part changes due to the tightening force.
By shaping, it is possible to prevent the fastener from loosening during use.
Can be prevented by the elastic repulsion of the sexually deformable portion. In the second invention,
According to the configuration, the elastic repulsion force of the elastic deformation
Can be used.

According to the third aspect of the present invention , it is possible to easily and quickly assemble a frame shelf constructed by intricately cross-sectional members such as a channel-like horizontal beam.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fastener according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where the fasteners are connected to each other.

FIG. 3 is a longitudinal sectional view of a connecting portion using the fastening device.

FIG. 4 is a cross-sectional view of a connecting portion using the fastener.

FIG. 5 is a cross-sectional plan view of a main part of the frame shelf.

FIG. 6 is a perspective view of the frame shelf.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Frame shelf 4 Brace 10 Prop 20 Horizontal beam (first member or second member) 21 Upper plate 22 Vertical plate 23 Lower plate 24 Bolt hole 25 Bolt hole 30 Diagonal horizontal member (First member or second member) 31 Upper plate 32 Side plate 33 Tongue piece 34 Bolt hole 40 Mounting plate (first or second member) 46 Bolt hole 50 Tightening tool 51 Nut body 52 Bolt 53 Bolt 54 Main body 55 Upper plate 55a Elastic deformation part 56 Vertical plate 56a Elastic Deformation part 57 Lower plate part 57a Elastic deformation part 58 Through hole 59 Through hole 60 Nut 61 Nut 62 Detent tongue 63 Detent tongue

Claims (3)

(57) [Claims] 1. A with forming the spring plate in the channel shape, in at least one of the plate portions, the elastic varying the clamping force
Forming an elastically deformable part, and forming this elastically deformable part
A through hole is formed in the plate portion , a nut communicating with the through hole is fixed to an inner surface of the plate portion to form a nut body, and a bolt that can be screwed to the nut through the through hole is provided. Fasteners. 2. An elastically deformable portion is formed by a pair of corner portions,
Characterized in that it is formed on each of a pair of oriented plate portions.
The fastener according to claim 1, wherein 3. A first member and a second member constituting a frame shelf.
At least one of the members is channel-shaped,
Both parts are mutually open when assembled with the channel inner surface open.
With bolt holes that communicate with each other to connect the assembled members
To do so, use a fastener consisting of a nut body and a bolt,
The nut body of this fastener is a channel-shaped body
The main body is adapted to be freely inserted into the inner surface of the channel.
One plate portion configured and facing the bolt hole
Formed an elastically deformable part that is elastically deformed by the tightening force
Then, a through hole is formed in the plate portion on which the elastic deformation portion is formed.
At the same time, a nut communicating with this through hole is fixed to the inner surface of the plate.
The bolts are passed through communicating bolt holes.
Characterized in that it can be freely screwed to the nut
Use frame shelf.