Supports – With means to facilitate installation – repair – or... – For ground insertion
Patent
1980-09-11
1983-05-24
Sakran, Victor N.
Supports
With means to facilitate installation, repair, or...
For ground insertion
2481888, 248357, F16M 1300
Patent
active
043846998
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a device for load carrier supporting legs.
PRIOR ART
When a conventional load carrier, such as a container or an exchangeable platform, is removed from a lorry and placed on the ground via supporting legs the lower parts of these legs often destroy the ground if it consists of damageable material, such as asphalt, especially if the carrier is heavily loaded and if the lower parts of the legs are provided with means for increasing the grip between the legs and a slippery or icy ground. If the legs consist of tubular profiles, such as square tubes, it is also common that clay, dirt or snow penetrates into the legs when they are placed on a ground consisting of such material. The material is difficult to remove from the legs and makes the legs heavier and more difficult to handle when they are swung upwardly and removed, for instance.
DESCRIPTION OF THE INVENTION
It is an object of the invention to provide a device for a load carrier supporting leg which solves the above described problems in a simple and economic way.
This object is fulfilled by giving the invention the characteristics described in the claims.
DESCRIPTION OF THE DRAWING FIGURES
A preferred embodiment of the invention will now be described in connection with the enclosed drawing, the only FIGURE of which is a perspective view, with certain parts cut away, of the device according to the invention.
DESCRIPTION OF PREFERRED EMBODIMENT
A supporting leg 1 which together with other supporting legs supports a load carrier (not shown) on the ground includes, at least in its lower portion, a square tube 2. The lower end of the tube has four edges which engage the ground and prevent the load carrier from sliding on the ground if slippery or icy which may happen if the lorry is jarred against the carrier during loading or unloading or if the ground is not horizontal. The lower edges of the tube 2 may be formed to increase the grip with the ground. Such a form is indicated at 3 in the FIGURE.
A support plate 4 with a hole 5 therethrough, which is insignificantly greater than the outer cross section of the tube, is displaceable along the tube 2 and can be locked thereto in any of many positions by means of a locking pin 6 which is longer than the distance between the opposed side walls of the tube. During locking the pin 6 is inserted through opposed holes 7 in upstanding flanges 9 on the support plate 4 and through opposed holes 8 in two opposed walls of the tube 2, whereafter the locking pin is locked in this position in a suitable manner.
When the load carrier is placed on an icy ground, for instance, or when the leg does not carry the load carrier, the support plate is not needed and may be removed from the leg if desired. When the carrier is placed on earth, sand or clay, for instance, the plate 4 is suitably locked to the tube 2 so that the bottom surface of the plate will be at a distance of a few centimeters from the lower end of the tube. The lower edges of the tube will then engage the ground and prevent the leg from sliding thereon. In this position the plate 4 will prevent the leg from sinking through the ground a distance which is longer than the distance between the lower edges of the tube and the bottom surface of the support plate.
When the load carrier is placed on a damageable ground, such as asphalt, the support plate 4 is locked to the tube 2 so that the bottom surface of the plate will be in the same horizontal plane as the lower edges of the tube or somewhat lower than these edges. Thus, the contact surface of the leg against the ground will be great and the risk of damages of the ground will be minimized.
When the load carrier is placed in deep snow, for instance, the support plate 4 may be locked in the position shown in the FIGURE.
In order that dirt, sand, clay, snow, etc., which penetrate into the tube 2 when the load carrier is placed on the ground consisting of such material, shall not remain in the tube 2, a guiding plate 10 has been welded to the inner wall
REFERENCES:
patent: 41427 (1864-02-01), Elbreg
patent: 787267 (1905-04-01), Bragg
patent: 872335 (1907-12-01), Foster
patent: 1719695 (1929-07-01), Ferguson
patent: 2047346 (1936-07-01), Weston
patent: 2720249 (1955-10-01), Peterson
patent: 2781716 (1957-02-01), Moran
patent: 2919514 (1960-01-01), King et al.
patent: 3007661 (1961-11-01), Knopf
patent: 3318560 (1967-05-01), Garrette, Jr. et al.
patent: 3342444 (1967-09-01), Nelson
patent: 3535071 (1970-10-01), Bore
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