JP2653302B2 - Beam structure of frame shelf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam structure of a frame shelf for storing loads mainly through pallets.

[0002]

2. Description of the Related Art Conventionally, as a beam structure of this kind, for example, a configuration disclosed in Japanese Patent Publication No. Sho. That is, in the conventional configuration, the first beam portion including a pair of upper and lower parallel flanges and a web portion and the second beam portion including a pair of upper and lower parallel flanges and a stepped web are arranged such that the parallel flange of the second beam portion is on the inside. After fitting in such a manner, they are integrated by welding. The horizontal part of the stepped web supports the deck.

[0003]

According to the above-mentioned conventional construction, a connection line (welding line) appears at upper and lower two places, so that the appearance is poor, and a welding line with many burrs at the time of assembly is used. May be injured when rubbed against. Further, welding of the upper and lower two places cannot be easily performed at low cost.

An object of the present invention is to provide a beam structure of a frame shelf which can be formed only by a connection line at one place on a lower surface, and which can use a load to make fitting more firm. .

[0005]

In order to achieve the above object, a beam structure of a frame shelf according to the present invention is a beam disposed between columns, comprising a top plate, and a front and rear end of the top plate. A front plate portion and a rear plate portion extending downward at right angles, a front lower plate portion and a rear lower plate portion extending in opposite directions from lower ends of the front plate portion and the rear plate portion, and a rear lower plate portion A locking plate extending upward at a right angle from the front end of the front plate; a hook extending at a right angle upward from the rear end of the lower plate at the front and bent downward, and with respect to the locking plate. The upper plate portion is formed in a stepped shape with its front half as an upper support portion, with a locked plate portion that can be engaged from above.

[0006]

According to the structure of the present invention, since the connecting wire is provided only at one location on the lower surface and is a connecting wire formed by fitting, welding can be made unnecessary, and the connecting wire portion is provided with a smooth surface free from catching or the like. Can be. When the pallet is placed on the support in the beam, the load is applied to the front plate more than the rear plate because the support is located in the front half, and the rear lower plate It will hang more on the front lower part than on the front. As a result, the locked plate portion acts downwardly on the locking plate portion, and the fitting is firmly maintained.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 6, reference numeral 1 denotes a frame shelf, which includes a plurality of columns 10 arranged in the front and rear and left and right (in the embodiment, two front and rear and three right and left), and a lattice 20 connecting the front and rear of these columns 10. A beam 30 for connecting the right and left of the column 10, a sub-beam 60 disposed between the beams 30 facing each other in front and rear, a leg device 5 attached to a lower end of the column 10, and the like.

As shown in FIGS. 2 to 6, the column 10 comprises an outer plate portion 11, a pair of right and left side plate portions 12 extending inward at right angles from the outer end of the outer plate portion 11, and these side plate portions. A pair of left and right inner plates 13 approaching in opposite directions from the rear end of the inner plate 12 and a pair of right and left connecting plates 14 extending inward at right angles from the inner ends of the inner plates 13 are provided. Slit for insertion between plate parts 14
It is integrally formed in the shape of a mold having 15.

An inward recess 16 is formed at the center in the width direction of the outer plate portion 11 so as to extend in the vertical direction over the entire length, and both sides of the recess 16 in the outer plate portion 11 and the inner plate portion 13 are formed. A plurality of pin holes 17 for connector pins (described later) are formed at predetermined intervals in the vertical direction. Also, both connecting plates 14
A connection hole 18 is formed at a predetermined position in the vertical direction.

The lattice 20 has a C-shaped rail shape, and has a connection hole 21 formed between the opposing plates at both ends. Then, after inserting both ends of the lattice 20 having a horizontal or inclined shape into the insertion slit 15 with the support pillar 10 having the insertion slits 15 opposed to each other in the front-rear direction, the connection holes 21 and By acting the rivet 22 over the 18, the front and rear struts 10 and the plurality of lattices 20 can be integrated.

As shown in FIGS. 1 to 5, the beam 30
It is obtained by bending a strip into a rectangular tube. That is, the beam 30 includes an upper plate portion 31 and a front plate portion 32 and a rear plate portion 33 which extend downward at right angles from the front and rear ends of the upper plate portion 31.
And a front lower plate portion 34 extending perpendicularly and rearward from the lower end of the front plate portion 32; a rear lower plate portion 35 extending forward at a right angle from the lower end of the rear plate portion 33; A locking plate portion 36 extending upward at a right angle from the front end of the locking plate portion 35; and a locking plate portion extending upward at a right angle from the rear end of the lower front plate portion 34 and then curved downward and curved downward. The locked plate portion 37 engageable from above with respect to 36 forms a rectangular tube integrally.

The upper plate portion 31 is formed in a stepped shape in which a front half is an upper supporting portion 31a and a rear half is a lower receiving portion 31b. The support portion 31a supports the load via the pallet 2, and the receiving portion 31b receives the sub-beam 60. In the beam 30, mounting holes 38 are formed at the center in the vertical direction of the front plate portion 32 and the rear plate portion 33, and a plurality of the mounting holes 38 are formed at predetermined pitches in the length direction. . Further, from the receiving portion 31b to the upper part of the rear plate portion 33, a plurality of notches 39 each having a pair of parallel pieces are formed at predetermined intervals.

At both ends of the beam 30, connecting members 40 are respectively integrated. That is, the connecting member 40 is
A front plate 41 that can be freely attached to the outer plate portion 11, an outer plate 42 that can be freely attached to the side plate portion 12, and an inner plate 43 that can be inserted into the recessed portion 16.
, A notch 44 for locking is formed at two upper and lower portions of the front plate 41, and the notches 44 for locking are formed.
A pin hole 45 is formed between them. Further, a locking portion 46 in the vertical direction is formed on the rear end edge of the outer plate 42 at two upper and lower positions. The end of the beam 30 is connected to the outer surface of the outer plate 42 by welding.

A connector pin 50 for fixing the connecting member 40 to the support post 10 has a pair of upper and lower insertion pin portions 51 which can be inserted from behind, between both pin holes 17, and the insertion pin portion 51 Has a locking pin portion 52 bent in the left-right direction from the inner end of the plug pin portion, has a vertical connecting pin portion 53 connecting the free ends of the locking pin portion 52, and further has an inner end of the insertion pin portion 51. And a reinforcing pin portion 54 in the vertical direction for connecting the surfaces facing each other.

The connecting member 40 is fixed to the support post 10 by fitting the locking notch 44 to the front protruding end of the insertion pin portion 51, and then using the vertical clearance of the locking notch 44. Then, the connecting member 40 is lowered. As a result, the locking portion 46
Is engaged with the locking pin portion 52 from above, and the retaining pin 55 is inserted between the matched pin holes 17 and 45.

The sub-beam 60 has a channel shape with an open bottom surface, and at both ends of the side plate portion, locking pieces 61 which can be inserted from above into the cutouts 39 are formed. It is formed on the mounting portion 62 for the receiving portion 31b.

The leg device 5 includes a bracket 6 that can be freely connected to the lower end of the column 10, a landing portion 7 located below the bracket 6, and a height adjuster that connects the bracket 6 and the landing portion 7. 8 Here, the landing portion 7 has a long shape in a plan view, and the free end side of the height adjuster 8 away from the connection portion is an anchor bolt connection portion 9.

In the frame shelf 1 of the above embodiment, two pallets 2 are placed between the columns 10 adjacent on the left and right, but this can be arbitrarily changed depending on the convenience of use. Since the connection line of the beam 30 is only one portion of the lower surface where the lower plate portions 34 and 35 are in relative contact with each other and is a connection line by fitting, welding can be unnecessary, and the connection formed by the arc portion The line portion can be a smooth surface without any snagging.

The loading operation by the forklift can be performed by placing the pallet 2 between the support portions 31a of the front and rear beams 30. At this time, the load on the pallet 2 is
Since the support portion 31a is located in the front half, the support portion 31a hangs more on the front plate portion 32 than the rear plate portion 33, and hangs on the front lower plate portion 34 more than the rear lower plate portion 35. Become. As a result, the locked plate portion 37 acts on the locking plate portion 36 in a downward-pushed manner, and the fitting is firmly maintained.

As described above, when the pallet 2 is largely shifted back and forth when it is placed, a part of the pallet 2 is supported by the sub-beam 60, so that it does not drop. It should be noted that a type without the sub beam 60 may be used.

[0021]

According to the present invention having the above-described structure, the connection wire is provided only at one location on the lower surface, and the connection wire is formed by fitting. Moreover, the entirety can be provided easily and inexpensively without the need for welding, and furthermore, the connecting wire portion can be made a smooth surface free from catching or the like, so that even if the operator's hand is rubbed, no injury is caused.

Further, when the pallet is placed on the support portion of the beam, the load is applied to the front plate portion more than the rear plate portion because the support portion is located in the front half, and the rear lower plate portion is provided. Therefore, the locked plate portion acts more downwardly on the locking plate portion, and the fitting can be firmly maintained by using the load. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a beam portion according to an embodiment of the present invention.

FIG. 2 is a vertical side view of the beam portion.

FIG. 3 is a front view of the beam portion.

FIG. 4 is a plan view of the beam portion.

FIG. 5 is a plan view of the connecting member.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame shelf 5 Leg device 10 Prop 20 Lattice 30 Beam 31a Support part 32 Front plate 33 Rear plate 34 Front lower plate 35 Rear lower plate 36 Locking plate 37 Locked plate 40 Connecting member 50 Connector pin 60 Sub beam

Claims (1)

(57) [Claims] 1. A beam disposed between columns, comprising: an upper plate, a front plate and a rear plate extending perpendicularly downward from front and rear ends of the upper plate, a front plate and a rear plate. A front lower plate portion and a rear lower plate portion extending in opposite directions from the lower end of the plate portion; a locking plate portion extending upward at a right angle from the front end of the rear lower plate portion; and a front lower plate portion A hook-shaped plate that extends upward at a right angle from the rear end and then curves downward, and is formed in a rectangular cylindrical shape by a locked plate portion that is engageable with the locking plate portion from above, A beam structure of a frame shelf, wherein the upper plate portion is formed in a stepped shape with a front half thereof as an upper support portion.