JPH0322165Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application This invention relates to a rope rack device used for stacking pallets for cargo handling in a plurality of upper and lower stages in a warehouse or the like in a loaded state.

BACKGROUND TECHNOLOGY AND PROBLEMS General rack devices of this type are known, for example, as seen in Japanese Utility Model Publication No. 54-34912 and Japanese Utility Model Application Publication No. 58-62935. As shown in FIG. 10, these rack devices have a pair of left and right front supports 32, 32 erected on the outer surface of the front end of a rectangular base frame 31 to allow insertion of a fork of a forklift. A pair of left and right rear struts 33, 33 are erected on the rear side of the base frame 31, with the interval within the outer surface being smaller than the interval between the front struts,
The rear horizontal bar 34 is fixed by passing it over the upper end of this rear column, and it is also passed between both ends of the rear horizontal bar 34 and the inwardly bent parts 32a, 32a of the upper ends of the front columns 32, 32, The upper rail member 3 is placed directly above the lower rail members 36, 36 on both sides of the base frame 31.
5,35 are fixed to each other. In this type of rack device, the upper and lower rail members 35 and 36, each having an inverted V-shaped cross section, are adapted to each other and can be stacked vertically in multiple stages.Therefore, pallets can be placed on each base frame. In addition to being able to stack them in multiple tiers, when not in use, the rack devices themselves can be stacked one after another in a nested manner, making them convenient for transportation and storage. .

However, since the top side of this type of rack device is open, it is impossible to place a cargo loading pallet on top of the top rack device. In addition, it is necessary to prepare a base frame member 37 without a support that fits on the uppermost rack device. Therefore, in order to stack pallets in three stages, for example, three members, two rack devices and one base frame member 37, are required, which makes it somewhat difficult to construct a multi-stage, multi-row storage shelf. However, the disadvantage was that the cost was high.

To solve this problem, the base frame member 3
As a type of rack device that can omit the use of 7, a rack device as shown in Japanese Utility Model Application Laid-Open No. 58-62937 has recently been proposed. As shown in FIG. 11, this rack device is, so to speak, the rack device shown in FIG. 10 upside down, with the bottom side open and the base frame 31 disposed on the top side. It is. Therefore, in FIG. 11, the reference numerals in FIG. 10 are used, and corresponding parts are indicated by the same reference numerals.

The rack device as shown in FIG.
The lowest pallet is placed directly on the floor, and the second pallet is placed on a base frame 31 located above the first rack. Therefore, for stacking, for example, three load pallets, it is sufficient to use two rack devices, which is further advantageous in terms of equipment costs.

However, in the rack device shown in FIG. 11, the width of the front support 32 is wider than the width of the base frame 31, which is the same with the rack device shown in FIG. ,3
2 is made to protrude outward. Therefore, when a plurality of rack devices are arranged side by side from side to side, as shown in FIG. rail member 36,
36 and between the base frames 31, 31, as shown in FIG. 12, there is a gap that is equal to or more than twice the width of the front strut. For this reason,
When rack devices stacked vertically in multiple tiers are arranged side by side, sufficient restraint force does not work between adjacent rack device rows, and the rack rows tend to wobble easily, especially in the event of an earthquake. There was a great risk of collapse. In addition, the floor area corresponding to the above-mentioned spacing was essentially wasted, which was disadvantageous in terms of effective use of the floor area.

Furthermore, especially in the rack device shown in FIG. 11, both the upper rail member 35 and the lower rail member 36, which enable stacking, are constructed of angle materials, and their entire length is Since the upper and lower rack devices can be combined by fitting them together, both edge portions of the lower rail member 36, which is open on the lower surface side, come into contact with the floor when in use. For this reason, especially when the floor surface is asphalt, when a large load is applied, there is a large risk that the lower rail member 36 will dig into the floor surface, causing damage to the floor surface. In addition, when stacking the rack devices, if the upper and lower rail members 35 and 36 do not match over their entire length, they cannot be properly fitted together, making the stacking operation somewhat troublesome. It was hot.

Purpose of the invention Based on the above-mentioned conventional technology, this invention not only improves the stability when stacking in multiple stages and rows, but also is more advantageous in terms of effective use of floor space. Moreover, there is no risk of the phenomenon of digging into the floor surface as described above.
The object is to provide a rack device that can be easily stacked.

Means for Solving the Problems This invention is a further improvement of the rack device of the type shown in FIG. In order to match the surface positions of the outer surfaces of the struts and the outer surfaces of the lower frame body, the actual effective internal dimension of the rack device has been expanded, and secondly, the upper and lower ends of the front struts have been expanded. The main feature is that stable stacking can be performed by providing a stacking positioning member with a partial fitting structure to the front end of the frame.

That is, this invention includes a pair of leg members 3, 3 arranged in parallel on the left and right, a pair of stacking depth members 2 fixed above these at a predetermined interval,
2 and a rear horizontal crosspiece 4 connecting the rear ends of the leg members 3 and 3 together form a U-shaped lower frame 1 in plan view with an open front side. A pair of front struts 5, 5 are erected, and the distance W2 between the outer surfaces is smaller than the distance W1 between the inner surfaces of the front struts and the minimum distance W4 between the inner surfaces of the lower frame body 1. A pair of left and right rear struts 6, 6 are erected on the Sobu horizontal crosspiece 4 of the lower frame body 1, and furthermore, on the four front and rear struts 5, 5, 6, 6, the width W3 is set as the front strut 5. , 5 is fixed in a horizontal manner.
The outer surfaces of the front struts 5, 5 and the outer surface of the lower frame body 1 are located on the same vertical plane, and the leg members 3, 3 are composed of angle members having an inverted V-shaped cross section with the lower surface side open. , and its open side surface is closed with a closing plate 13 leaving at least a predetermined length portion of the front end, and a fitting recess 9 for stacking is formed by the missing front end portion of the closing plate 13. On the other hand, a fitting protrusion 10 having a corresponding cross-sectional shape smaller in depth than the fitting recess 9 is provided on the upper end surface of the front struts 5, 5, and a fitting protrusion 10 is provided on the upper end surface of the front struts 5, 5. The gist of the present invention is a rack device for stacking pallets for cargo handling, in which plate-shaped stoppers 14, 14 are fixed to both ends in an upwardly projecting manner.

Embodiments Hereinafter, the structure of this invention will be further explained based on embodiments shown in the accompanying drawings.

In FIGS. 1 to 6, reference numeral 1 denotes a lower frame assembled in a U-shape in plan view with the front side open, and a pair of leg members 3 long in the depth direction arranged in parallel on the left and right, 3, a pair of stacking depth members 2, 2 on the left and right arranged in parallel at a predetermined interval above the leg members 3, 2, and the rear ends of the leg members 3, 3 are connected, and the lower surface is connected to the legs. The rear horizontal beam 4 located on the same plane as the member is the main component, and the leg member 3
and a connecting piece 11 having an L-shaped cross section that connects the middle part of the depth member 2, and a rear gusset plate 12 that is applied and fixed to the part from the rear end surface to the side surface. The leg member 3 is made of an angle member having an inverted V-shaped cross section, as shown in detail in FIGS. It is closed with a closing plate 13. This closing plate 13 increases the floor contact area of the leg member 3 and prevents the leg member 3 from digging into the floor surface due to the load applied to the rack device.
It serves to smoothly slide the leg members 3 on the upper frame plate, which will be described later, when stacking. Closing board 1
The lower surface open portion of the front end portion of the leg member 3 from which the leg member 3 is missing constitutes a fitting recess 9 for stacking. Further, the depth member 2 is made of a square pipe, and serves to reinforce the lower frame 1, and also serves as a support for the upper rack device when a plurality of rack devices are stacked in a nested manner as shown in FIG. It supports the members 3, 3.

Reference numerals 5 and 5 designate a pair of front struts on the left and right, both of which are made of square pipes. These front struts 5,5
is erected from the front end of the lower frame body 1, that is, the front ends of the leg members 3, 3 and the depth members 2, 2, and its outer surface is connected to the outer surface of the lower frame body 1, that is, the leg members 3, 3 and the front end of the depth members 2, 2. It is positioned on the same vertical plane as the outer surface of the depth member 2. In other words, they are all placed on the same plane. However, the inner side edges of the leg members 3, 3 are made to project slightly inward from the inner surface of the front support column 5, as shown in FIG.

Reference numerals 6 and 6 indicate a pair of left and right rear struts. All of these are made of square pipes. Rear strut 6,6
is installed on the rear horizontal beam 4 of the lower frame body 1,
Its position is the distance W2 between the outer surfaces of both supports 6, 6.
is set at a position smaller than the distance W1 between the inner surfaces of the front struts 5, 5 and the minimum distance W4 between the inner surfaces of the lower frame body 1.

Reference numeral 7 denotes a rectangular upper frame plate for pallet mounting fixed to the upper ends of the four pillars 5, 5, 6, and 6, and frame members 15 and 16 around the front and rear and left and right sides are all made of square pipes. , 17, 18, and a plurality of vertical bars 19 and horizontal bars 20 arranged in a grid pattern in the space surrounded by them. Also,
The upper frame plate 7 has a horizontal width W3 smaller than a distance W1 between the inner surfaces of the front struts 5, 5.

Reference numeral 10 designates a fitting protrusion provided on the upper end surface of the front struts 5, 5 at a position corresponding to the fitting recess 9 on the lower leg member 3 side, and has a triangular chevron cross section that fits the fitting recess 9. formed into a shape. Note that the length of the fitting protrusion 10 in the depth direction is made sufficiently longer than the length of the fitting recess 9, so that the rack devices to be stacked on the upper layer are positioned slightly shifted in the front-back direction. It is also possible to achieve a mutually fitted state even when

Reference numeral 14 denotes a plate-shaped stopper fixed to both left and right ends of the rear surface of the upper frame plate 7, which protrudes above the frame plate and comes into contact with the rear horizontal beam 4 of the upper rack device when the rack devices are stacked. It is designed to be able to perform positioning.

Next, an example of the use of the above-mentioned rack device will be explained.

When pallets loaded with cargo are stacked vertically in multiple tiers in a warehouse, the first tier pallet P1 is directly transferred to the lower frame 1 of the first tier racking device R1, as shown in FIG. Place it on the floor inside the Then, the second stage pallet P2 is placed on the upper frame plate 7 of the first stage rack device R1. If the third stage pallet P3 is to be further stacked, the second stage racking device R2 is separately stacked on the first stage racking device R1, and the third stage pallet P3 is stacked on top of the upper frame plate 7.
Place. Normally, such rows of rack devices stacked in multiple stages are installed side by side in the left and right direction, as shown in FIG. 7, to form an article storage shelf of a required size.

On the other hand, when transporting or storing unused rack devices, a large number of them are stacked in a nested manner as shown in FIG. The overlapping operation at this time is
This is done by using a lifting machine to fit the rack devices to be stacked on the upper tier onto the rack devices on the lower tier so as to cover them from above or from behind. In this nested stacked state, the front struts 5, 5 and rear struts 6, 6 of each rack device are closely aligned in the front-rear direction, and the leg member 3 of the upper rack device is aligned with the depth of the lower rack device. 2
It is supported on the top and combined in a stable state.

Effects of the invention As mentioned above, the rack device according to this invention can stack a predetermined number of pallets using one rack device less than the number of pallets to be stacked in multiple stages. It is advantageous in terms of equipment cost. Of course, when not in use, many pieces can be stacked compactly in a nested manner as shown in FIG. 9, similar to conventional products, which is convenient for transportation and storage. This nested stacking is such that the distance W2 between the outer surfaces of the rear struts 6, 6 is the same as the distance W1 between the inner surfaces of the front struts 5, 5 and the minimum distance W between the inner surfaces of the lower frame body 1.
4, and the width W of the upper frame board 7
3 is smaller than the distance W1 between the front struts 5, 5.

In addition, with respect to the front struts 5, 5, members on both left and right sides of the lower frame body 1 extending rearward from the rear surface side, that is, the depth member 2 and the leg members 3, both have their outer surfaces connected to the front struts 5, 5. It is flush with the outer surface of the Therefore, when rack devices are stacked in multiple stages and are further arranged side by side, as shown in FIGS. 7 and 8,
Not only the front struts 5 and 5 but also both outer surfaces of the lower frame body 1 are brought into close contact with each other. For this reason,
Adjacent rows of rack devices stacked in multiple stages cooperate with each other to stably support each other, resulting in very good stability of each row of racks in the stacked state. Therefore, each row of racks does not undergo lateral sway, making it possible to construct a stable prefabricated storage shelf structure, as well as providing excellent safety against earthquakes. Furthermore, since the left and right sides of the lower frame body 1 are not positioned inwardly with respect to the front columns 5, 5, a large effective area for placing pallets can be secured inside the rack device. I can do it. That is, unlike the conventional product explained with reference to FIG. 12, no dead space is created on the floor surface due to the spacing. Therefore, the floor space can be used more effectively and efficiently.

Furthermore, although the leg member 3 on the lower surface side of the lower frame body 1 is made of an angle material with an open lower surface, a closing plate 13 is attached to the lower surface of the open side, increasing the floor contact area. Therefore, even when a large load is applied to the rack device, the leg members 3 do not dig into the floor surface, and the rack device can be used safely even on an asphalt floor surface without fear of damaging the floor surface. Furthermore, when stacking rack devices, if the upper rack device is placed with the fitting recess 9 of the front end of the leg member 3 partially aligned with the fitting protrusion 10 of the lower rack device, the upper and lower rack devices can be stacked. As a result, it is not necessary to strictly determine the parallelism of both rack devices in the depth direction from the beginning when stacking them, and the fitting recess 9 is longer than the fitting protrusion 10, and there is a slight deviation in the front and rear direction. The two can be fitted together without any problem even when the upper and lower racks are in contact with each other, and furthermore, by abutting the rear horizontal beam 4 of the upper rack device against the stopper 14, the longitudinal positioning of both the upper and lower rack devices can be easily and accurately performed. Furthermore, the lower surface of the leg member 3 is connected to the closing plate 1.
3 is a flat surface, and can be easily slid on the upper frame plate 7. In combination with the above-mentioned factors, the rack device can be easily stacked in a tiered manner.

[Brief explanation of the drawing]

1 to 9 show embodiments of this invention. Fig. 1 is a perspective view of the entire rack device, Fig. 2 is a front view of the same, Fig. 3 is a side view of the same, Fig. 4 is an enlarged front view with a part of the front support section cut away, and Fig. 5 is a leg 6 is a sectional view taken along the line shown in FIG. 5, FIG. 7 is a perspective view showing how the rack device is used, FIG. FIG. 3 is a perspective view of the rack devices nested and stacked when not in use. 10-12 show a conventional rack device. Fig. 10 is a perspective view of one example of a conventional product, Fig. 11 is a perspective view of another conventional product, and Fig. 12 is a perspective view of an example of a conventional product.
The figure is a horizontal sectional view of a plurality of rack devices of FIG. 11 arranged side by side. 1... Lower frame body, 2... Depth member, 3... Leg member, 4... Rear horizontal beam, 5... Front column, 6... Rear column, 7... Upper frame plate, 9... Fitting Matching recess, 10
... Fitting protrusion, 13 ... Closing plate, 14 ... Stopper, W1 ... Interval between inner surfaces of front strut, W2 ...
Spacing between the outer surfaces of the rear struts, W3... Width of the upper frame plate, W4... Minimum spacing between the inner surfaces of the lower frame body.

Claims (1)

[Scope of utility model registration request] A pair of leg members 3, 3 arranged in parallel on the left and right
The front side is opened by a pair of stacking depth members 2, 2 fixed above these at a predetermined interval, and a rear horizontal bar 4 connecting the rear ends of the leg members 3, 3. A lower frame body 1 having a U-shape in plan view is configured,
A pair of left and right front struts 5, 5 are erected at the front end of the lower frame body 1, and from the distance W1 between the inner surfaces of the front struts and the minimum distance W4 between the inner surfaces of the lower frame body 1. A pair of left and right rear struts 6, 6 are erected on the rear horizontal beam 4 of the lower frame body 1 with a small interval W2 between the outer surfaces, and further on the four front and rear struts 5, 5, 6, 6. A rectangular upper frame plate 7 for pallet mounting, whose width W3 is smaller than the interval W1 between the inner surfaces of the front struts 5, 5, is fixed horizontally, and is connected horizontally to the outer surfaces of the front struts 5, 5. Depth members 2, 2 and leg members 3 of the frame 1,
The outer surface of No. 3 is located on the same vertical plane, and
The leg members 3, 3 are made of an angle member having an inverted V-shaped cross section with the lower surface side open, and the open side surface is connected to the closing plate 1 with at least a predetermined length of the front end remaining.
The fitting recess 9 for stacking is formed by the missing front end portion of the closing plate 13, while the fitting recess 9 is
A fitting protrusion 10 having a corresponding cross-sectional shape with a smaller length in the depth direction is provided, and plate-shaped stoppers 14 are fixed to both ends of the rear surface of the upper frame plate 7 in an upwardly protruding manner. Rack device for stacking pallets.