JPH05178425A - Beam structure for frame shelf - Google Patents

Abstract

PURPOSE:To improve an external appearance due to a fitting connection line, prevent a worker from being wounded even if his hand rubs it, and strengthen the fitting more firmly by forming a plate part to be locked capable of engaging freely from above with a locking plate part into a square cylinder shape, and forming the front half of an upper plate part in a step shape as an upper support part. CONSTITUTION:A connection line of beams 30 exists only in one place on the lower surface where both lower plate parts 34 and 35 are brought into contact with each other, and moreover, since it is the fitting connection line, welding is not necessary, so that the smooth surface can be formed. Further, a warehousing operation by means of a forklift can be carried out by loading a pallet 2 between support parts 31a in the front/rear beams 30. Since the support parts 31a are situated in the front half, a pallet 2 side load in the case of this loading is applied much more to a front plate part 32 than to a rear plate part 33, and is also applied much more to a front lower plate part 34 than to a rear lower plate part 35. As a result, since a plate part 37 to be locked acts on a locking plate part 36 in a press-down condition, the fitting can be maintained firmly.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as this type of beam structure, for example, the structure of Japanese Patent Publication No. 41724/1984 is provided. That is, in the conventional configuration, the first beam portion including the pair of upper and lower parallel flanges and the web portion and the second beam portion including the pair of upper and lower parallel flanges and the stepped web have the inner side of the parallel flange of the second beam portion. After fitting as above, they are integrated by welding. And the horizontal part of the stepped web supports the deck.

[0003]

According to the above-mentioned conventional structure, the connection line (welding line) appears at two upper and lower portions, which is unattractive, and the worker's hand often has burrs during assembly. May be injured when rubbed against. Furthermore, welding at two locations, upper and lower, is not easy and inexpensive.

An object of the present invention is to provide a frame shelf beam structure which can be formed by only one fitting connection line on the lower surface and which can be fitted more firmly by utilizing a load. ..

[0005]

In order to achieve the above object, the beam structure of the frame shelf of the present invention is a beam arranged between columns, and is composed of an upper plate portion and front and rear ends of the upper plate portion. A front plate portion and a rear plate portion that extend downward at a right angle, a front lower plate portion and a rear lower plate portion that extend in opposite directions from the lower ends of the front plate portion and the rear plate portion, and this rear lower plate portion. A locking plate portion that extends upward from the front end in a right angle shape, and a hook shape that extends upward in a right angle shape from the rear end of the front lower plate portion and then bends downward, and with respect to the locking plate portion. It is formed in a rectangular tubular shape by a locked plate portion that can be engaged from above, and the upper plate portion is formed in a stepped shape with the front half thereof as an upper support portion.

[0006]

According to the structure of the present invention, since the connecting line is only one place on the lower surface and is a connecting line by fitting, welding can be made unnecessary, and the connecting line portion has a smooth surface without catching. You can In addition, the load when the pallet is placed on the support portion of the beam will be 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 It will hang more on the front lower plate than on. As a result, the locked plate portion acts on the locking plate portion in a downward-pressing manner, so that the fitting is firmly maintained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 6, reference numeral 1 denotes a framework shelf, and a plurality of columns 10 (two in the front and two in the example and three in the left and right are shown) arranged in the front and rear and in the left and right, and a lattice 20 connecting the front and rear of these columns 10. A beam 30 that connects the right and left sides of the column 10 with each other, a sub beam 60 disposed between the beams 30 facing each other in the front and rear, a leg device 5 attached to the lower end of the column 10, and the like.

As shown in FIGS. 2 to 6, the column 10 includes 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 plate parts 13 approaching each other from the rear end of the inner plate part 13 in opposite directions, and a pair of left and right connecting plate parts 14 extending inward at right angles from the inner ends of the inner plate parts 13, Slit for insertion between plate parts 14
It is integrally formed in the shape of a mold in the state of having 15.

An inward recessed portion 16 is formed over the entire length in the vertical direction at the widthwise central portion of the outer plate portion 11, and both sides of the recessed portion 16 of the outer plate portion 11 and the inner plate portion 13 are formed. A plurality of pin holes 17 for connector pins (which will be described later) are formed at predetermined pitches in the vertical direction. Also, both connecting plate parts 14
A connecting hole 18 is formed at a predetermined position in the vertical direction.

The lattice 20 has a C-shaped rail shape, and a connecting hole 21 is formed between the opposing plates at both ends. Then, the support column 10, with the insertion slits 15 facing each other in the front-rear direction, after inserting both ends of the lattice 20 that is horizontal or inclined into the insertion slits 15, the connection hole 21, By operating the rivets 22 over 18, the front and rear columns 10 and the plurality of lattices 20 can be integrated.

As shown in FIGS. 1 to 5, the beam 30 is
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 that extend downward at right angles from the front and rear ends of the upper plate portion 31.
A front lower plate portion 34 that extends rearward in a right angle from the lower end of the front plate portion 32, a rear lower plate portion 35 that extends forward in a right angle shape from the lower end of the rear plate portion 33, and this rear lower plate portion. An engaging plate portion 36 that extends upward in a right angle shape from the front end of 35, and an engaging plate portion that is formed in a hook shape that extends upward in a right angle shape from the rear end of the front lower plate portion 34 and then curves downward. It is integrally formed in a rectangular tubular shape by a locked plate portion 37 that is engageable with the 36 from above.

The upper plate portion 31 is formed in a stepped shape with a front half thereof as an upper supporting portion 31a and a rear half thereof as a lower receiving portion 31b. The supporting portion 31a supports a load via the pallet 2, and the receiving portion 31b receives the sub beam 60. The beam 30 has mounting holes 38 formed in the central portions of the front plate portion 32 and the rear plate portion 33 in the vertical direction, and a plurality of mounting holes 38 are formed at a predetermined pitch in the length direction. .. Further, a plurality of sets of notches 39, each of which is a set of two parallel, are formed at a predetermined pitch from the receiving part 31b to the upper part of the rear plate part 33.

A connecting member 40 is integrated with both ends of the beam 30. That is, the connecting member 40 is
A front plate 41 freely attachable to the outer plate part 11, an outer plate 42 freely attachable to the side plate part 12, and an inner plate 43 freely fit in the recessed part 16.
Is formed in a shape of a material by the above, and notches 44 for locking are formed at two upper and lower positions of the front plate 41, and the notches 44 for locking are formed.
A pin hole 45 is formed between them. Further, vertical locking portions 46 are formed on the rear end edge of the outer plate 42 at two positions in the vertical direction. The end of the beam 30 is connected to the outer surface of the outer plate 42 by welding.

The connector pin 50 for fixing the connecting member 40 to the column 10 has a pair of upper and lower insertion pin portions 51 which can be inserted from the rear between both pin holes 17, and the insertion pin portion 51. Has a locking pin portion 52 that is bent in the left-right direction from the inner end, and a vertical connecting pin portion 53 that connects the free ends of the locking pin portion 52, and the inner end of the insertion pin portion 51. And has a reinforcing pin portion 54 in the up-and-down direction that connects the surfaces facing each other.

To fix the connecting member 40 to the column 10, the locking notch 44 is fitted onto the front protruding end of the insertion pin 51, and then the vertical clearance of the locking notch 44 is used. Then, the connecting member 40 is lowered. As a result, the locking portion 46
After engaging with the locking pin portion 52 from above, the retaining pin 55 can be inserted between the matched pin holes 17 and 45.

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

The leg device 5 includes a bracket 6 which can be connected to the lower end of the column 10, a landing portion 7 located below the bracket 6, and a height adjusting tool for connecting the bracket 6 and the landing portion 7. 8 and. Here, the landing portion 7 has an elongated shape in a plan view, and the free end side of the height adjusting tool 8 which is away from the connecting portion is an anchor bolt connecting portion 9.

In the frame shelf 1 of the above embodiment, two pallets 2 are placed between the columns 10 which are adjacent to each other on the left and right, but this can be arbitrarily changed according to the convenience of use. The connection line of the beam 30 is only one place on the lower surface where the lower plate parts 34 and 35 are in contact with each other, and since it is a connection line by fitting, welding can be made unnecessary and the connection formed by the arc part. The line part may be a smooth surface without being caught.

The loading operation by the forklift can be carried out by placing the pallet 2 between the support portions 31a of the front and rear beams 30. The load on the pallet 2 side during this placement is
Since the support portion 31a is located in the front half, the front plate portion 32 hangs more than the rear plate portion 33, and the front lower plate portion 34 hangs 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 downwardly pressing manner, so that the fitting is firmly maintained.

As described above, when the pallet 2 is largely displaced back and forth when it is placed, a part of the pallet 2 is supported by the sub beam 60, so that the pallet 2 does not drop. The sub beam 60 may not be provided.

[0021]

According to the present invention having the above-described structure, the connection line is formed only at one place on the lower surface, and the connection line is formed by fitting, so that the appearance can be improved. Moreover, welding is not required, and the whole can be easily provided at low cost. Further, the connection line portion can be formed into a smooth surface without being caught, so that the operator's hand can be rubbed without being injured.

Further, the load when the pallet is placed on the support portion of the beam 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 also loaded. The front lower plate portion will be hung more than the front lower plate portion, so that the locked plate portion acts like a downward push on the locking plate portion, and the fitting can be firmly maintained by using the load. ..

[Brief description of drawings]

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

FIG. 2 is a vertical sectional 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 portion.

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

[Explanation of symbols]

 1 Frame shelf 5 Leg device 10 Strut 20 Lattice 30 Beam 31a Support part 32 Front plate part 33 Rear plate part 34 Front lower plate part 35 Rear lower plate part 36 Locking plate part 37 Locked plate part 40 Connecting member 50 connector pin 60 sub beam

Claims (1)

[Claims] 1. A beam disposed between columns, comprising: an upper plate part, a front plate part and a rear plate part extending downward at right angles from front and rear ends of the upper plate part, a front plate part and a rear plate part. 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 from the front end of the rear lower plate portion at a right angle, and a front lower plate portion. Is formed in a rectangular tubular shape by a hooked plate portion extending upward from the rear end at a right angle and then curved downward and engageable with the locking plate portion from above. The beam structure of the frame shelf, wherein the upper plate part has a front half formed in a stepped shape with the upper support part.