Patent Application
20240278955
The present invention relates to a pallet structure, in particular to a pallet structure having preset shape for holding supports to enhance structure, which can greatly decrease assembling and fastening work for the pallet structure. Also, the assembly costs of the pallet is reduced, and the load capacity can be simply adapted to meet different load requirements.
In order to transport a large amount of goods at one time, the concept of placing the goods on the frame body and moving the frame body by a power machine while carrying the goods was developed. Corresponding to this, the pallet was born. The pallet is flat-shaped frame with a penetration space therebelow. The forks of the power machine, such as forklifts, can penetrate into the penetration space to lift up the pallets for transportation.
Most wooden pallets are made of natural wood as a raw material. The wooden pallets have excellent load capacity, but they are too bulky and prone to blackening, mildewing and worm damage. It is required to be refurbished and maintained manually. In particular, governments around the world are increasingly demanding to restrict the use of various wooden packaging materials, including wooden pallets. Take the International Plant Protection Convention (IPPC) for example, in order to prevent pests, users must comply with ISPM 15 (International Standard for Phytosanitary Measures No. 15). Therefore, expensive costs and complicated and cumbersome procedures must be added during processing. It also increases the risk of import and export of goods and even if it is possible to be rejected to cause delay of goods. Therefore, it has a tendency to be gradually replaced.
Plastic pallets are usually not strong and are easier to be bend and deformed than the wooden pallets. It is hard to provide sufficient rigidity and support. In order to enhance the performance of plastic pallets, the thickness of the cross-section of the injected workpiece is increased or ribs are added. However, pallet structures with different thicknesses require different molds to achieve, and it is still difficult to increase sufficient support. Therefore, how to solve the above problems and make the pallet structure be lightweight and rigid, while being low in cost and easy to produce, which is an important technical problem to be explored.
In view of the problems that the manufacturing cost of the conventional pallet structure is high, and the structural strength of the plastic pallet is not enough, it is a primary objective of this invention to provide a pallet structure having preset shape for holding support. By using the same shape, i.e. a single mold is used for the pallet, it can be configured according to the shape with supports to enhance the dynamic load capacity and static load capacity to improve the strength and significantly reduce manufacturing and production costs.
According to the pallet structure having preset shape for holding support of the present invention, it includes a shape main body and at least one support accommodated therein to enhance the dynamic load capacity when placed on the ground with goods. The shape main body is provided with grooves required for accommodating a forklift or a fork for lifting pallet structure. An elongate transverse strip can be placed in the transverse groove. Excepting for limit the position of the support, the rigidity and the load capacity of the pallet structure can be enhanced when placed on the ground with goods or lifted from the ground. The shape main body is provided with vertical grooves conformed to the appearance of the support. The supports can be placed in a simple way, eliminating the need for a large amount of nails, locks, and insertions for conventional pallets. Also. it allows the support on the shape main body to not easily displace and loosen, and provides supporting and fork-lifting rigidity during carrying the goods. A upper cover plate is disposed on the shape main body. By the combination of the upper cover plate with the shape main body, the supports will not be exposed, and the support and the anti-torsion of the shape main body will be further improved with better weather resistance. Moreover, different required load capacities for the pallet structure can be achieved by modifying the amount, material, shape, thickness, etc. of the support.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter.
According to the pallet structure having preset shape for holding support of the present invention, please refer to
Then please refer
On the other hand, if the shape main body 10 and the support (the grounding stand 20 and the transverse strip 30) are made of plastic material, the support (the grounding stand and the transverse strip 30) can be fixed in the supporting grooves (the vertical groove 11 and the transverse grooves 12) of the shape main body 10 by ultrasonic or high-frequency welding. Moreover, regardless of whether the shape main body 10 and the support (the grounding stand 20 and the transverse strip 30) are made of metal, plastic or other materials, the support (the grounding stand 20 and the transverse strip 30) can be fixed in the supporting grooves (the vertical groove 11 and the transverse grooves 12) of the shape main body 10 by glue. Excepting for glue, the support (the grounding stand 20 and the transverse strip 30) can be fixed in the supporting grooves (the vertical groove 11 and the transverse grooves 12) of the shape main body 10 by screws, rivets or the likes. Furthermore, if the strength requirements are low, a tight fit can also be used to directly engage the support (the grounding stand 20 and the transverse strip 30) with the supporting grooves (the vertical groove 11 and the transverse grooves 12) of the shape main body 10. It can be known that the above-mention is merely illustrative, and the corresponding fixing manner (with or without fasteners) is currently common and can be simply replaced.
Then please refer to
In addition to the above-mentioned embodiments, the foot base 40 can be installed separately (separably assembled, not shown in the figure). The shape can be cylindrical, square, elongated, or any other geometric shape divided into several strips or pieces. Assembly and installation can using fasteners or without fasteners to simplify transportation and be convenient for using.
Excepting for the above-mention embodiment, please refer to
The material of the shape main body 10 and the upper cover plate 50 may be plastic or made of other various materials. The production method is not limited to blister, injection or compression. The other materials of the pallet structure 1 are not necessarily made of a specific material. The pallet structure 1 can also be used in combination with different materials, quantities, thicknesses, shapes, etc. on the material, so as to meet the requirements of different using scenarios and load capacities. In the case that the shape main body 10 is configured with supports with different quantities and materials to meet the requirements of different using scenarios and load capacities, the number of molds can be greatly saved to decrease the production difficulty.
Furthermore, in case of the shape main body 10 and the upper cover 50 have certain rigidity and strength, in some applications, only a fewer amount of supports (or even no supports) are needed be used to form the pallets. The shape main body 10, supports and upper cover plate 50 of the pallet structure 1 can be produced and installed by using any common processes, such as applying fasteners or without fasteners (for example: welding, gluing, ultrasonic, high frequency or gluing, etc.).
According to the present invention, the pallet structure having a preset shape for holding a support is easy and convenient to manufacture. The structure is rigid, firm and lightweight, so that the pallet is also suitable for storage and transport. The above-mentioned description is only the preferred embodiment of the present invention and is not intended to limit the present invention in any way. For example, in the present embodiment, the shape main body or the upper cover plate are also with holes to reduce the weight. In case of the sufficient supports are used to offer sufficient rigidity, the upper cover plate may not be arranged. The transverse strips may be solid or hollow. It will be obvious for any one of ordinary skill in the art that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111021006.3 | Sep 2021 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/124952 | 10/20/2021 | WO |
