Horizontally supported planar surfaces – Industrial platform
Utility Patent
1999-08-24
2001-01-02
Wilkens, Janet M. (Department: 3636)
Horizontally supported planar surfaces
Industrial platform
C108S057260, C108S901000
Utility Patent
active
06167817
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to an improved pallet structure for yarn packages, especially in which a plurality of rods are provided to increase the strength of the pallet structure, so that the pallet is not subjected to deformation. When yarn packages are placed on the pallet, the center of gravity of the yarn packages is located above the rods. The rods support the weight of the yarn packages, and this arrangement can enhance the load bearing capability of the pallet, and prolong the life of the device.
2. Description of the Prior Art
Normal yarns used for weaving are wound on a yarn reel to form a cylindrical package which is called a yarn package in the art, then the yarns are delivered to textile factories for weaving or braiding. Yarn packages are not as easy to deliver, hence manufacturers put and stack them on pallets up to a predetermined number, and deliver them by moving the pallet.
One of the pallets A used presently for stacking and delivering yarn is shown in
FIGS. 1 and 2
. The pallets are each comprised of:
a) a bottom member B with two first sides D and two second sides E, comprising:
i) four mutually separated first feet F having each a first groove G thereon;
ii) two mutually separated second feet H having each a second groove K thereon;
iii) three mutually separated middle feet L having each a middle groove M thereon;
b) a subordinate structure C removably mounted on the bottom member B, the subordinate structure C includes two first rods N, a second rod Q separated from the first rods N, and at least a middle rod P for connecting, the first rods N and the second rod Q; the first rods N, the second rod Q and the middle rods P are supported by the first feet F, the second feet H and the middle feet L and are placed in the first grooves G, second grooves K and middle grooves M.
However, the mode with a subordinate structure C provided on the bottom member B of the pallet has the following disadvantages:
1. The subordinate structure C has a large area, and operators during manufacture must carefully align it in order to prevent tilting and deviation which makes the assembly process difficult.
2. The subordinate structure C has a large volume and weight, which adds weight and increases the risk of danger during transport of the pallet.
3. The subordinate structure C is stiff and is exposed to the top of the pallet to contact directly with yarn packages. The subordinate structure C is made of aluminum which is subjected to oxidation and rusting, and rust will eventually contaminate the yarn packages making the latter useless.
4. The subordinate structure C has a large volume and is stiff, and the size of such a structure must be extremely accurate; a little deviation or tilting may make the bottom member B of the pallet unmatched therewith, and the assembly of the pallet will not be successful.
5. When the size of such a stiff subordinate structure C is unfit or is inferior in quality; recovery of the structure is extremely inconvenient, and it has to be detached if it is to be used for another purpose, and disposing of it is very difficult.
6. The subordinate structure C is assembled together with a plurality of supporting plates for the yarn packages on the bottom member B of the pallet. There are a plurality of slits and gaps between the subordinate structure C and the supporting plates, thus the slits are subjected to jamming therein with material which will protrude out of the surface of the pallet. In this way, when the pallet is loaded with yarn packages, the protruding material will extend or hook into the yarn packages, and the latter will be damaged.
SUMMARY OF THE INVENTION
A pallet for yarn packages is the most ideal transport device for transporting yarn packages. Since the pallet must bear the weight of the yarn packages, the structure of the pallet must have adequate strength and must not damage the yarn packages. Prior art pallets include structural defects and they are relatively inconvenient in usage. In the present invention, a plurality of rods are provided at suitable locations on a pallet to increase the structural strength and bearing capability of the pallet, thus the life of the pallet can be extended.
The primary object of the present invention is to provide at suitable locations on a pallet with a plurality of rods to increase the structural strength and load bearing capability of the pallet, so that the pallet is not subjected to deformation and the life of the pallet can be elongated.
The secondary object of the present invention is to provide and hide the rods in the pallet, such that the yarn packages will not be easily damaged.
A further object of the present invention is to provide relatively small and light rods which will not add too much weight on a pallet and thus will not add a substantial load during transport.
Another object of the present invention is to provide relatively small and light rods which will not add substantial cost during the production of a pallet.
A further object of the present invention is to provide relatively small rods which are easy for assembly in a pallet, and are convenient for changing or use for another purpose. So that the wasting of members or loss of cost can be minimized.
The present invention will be apparent in its structure, assembly and features from the detailed description of the preferred embodiments and in reference to the accompanying drawings.
REFERENCES:
patent: 4735154 (1988-04-01), Hemery
patent: 5404829 (1995-04-01), Shuert
patent: 5755162 (1998-05-01), Knight et al.
patent: 5809904 (1998-09-01), Darby
patent: 5868080 (1999-02-01), Wyler et al.
patent: 2272203 (1994-05-01), None
patent: 199446 (1984-11-01), None
Bacon & Thomas PLLC
Wilkens Janet M.
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