TH13099U - Sack lifting structure - Google Patents

Abstract

The sack lifting structure (also called a sack lifting frame) according to this invention has the following main components: a number of first and second straps (1, 2), iron or metal handles (3), and iron or metal clips (4). It has the following characteristics: - A number of first and second straps (1, 2) are flat iron or metal or plastic straps, with the first strap (1) arranged parallel to each other lengthwise, and the second strap (2) arranged parallel to each other crosswise and intersecting (weaving) with the first strap (1) at right angles, forming a square mesh (sack net) with a number of intersection points (weaving points) at the bottom (corners of the sack net). The straps (1, 2) are then gathered in an upward direction and looped together until the straps (1, 2) are woven together to form a square mesh with intersection points (weaving points) at the top, and the ends of each strap The convergence and overlapping - steel or metal handles (3) are threaded through with the first and second straps (1, 2) that loop and interweave at the top of the lugs to secure the straps at the intersection (weaving point) and for inserting steel hooks for lifting. - Steel or metal clips (4) are used to secure the ends of each of the first and second straps (1, 2) that loop and overlap at the top of the lugs. The structure may have a fastening method (5) as an additional component to secure the first and second straps (1, 2) at the lower intersection. These components work together in a weaving and fastening manner to create a structure that tightly binds the stack of sacks into a single mass, making it difficult for them to fall out. The stack of sacks can be easily moved in batches of several tons at a time, saving time and labor used in sorting, packing, and securing at both the origin and destination. It is suitable for transporting goods on ocean-going vessels that face rough sea conditions during transport. The method of constructing such a structure is also described.

Claims (10)

1. The sack lifting structure, which consists of the main components, first and second straps (1, 2), one handle (3), and clips (4), has the following characteristics: - A number of first and second straps (1, 2) are made of steel, metal, or flat plastic wires for securing the sack. The first strap (1) is arranged parallel to the first strap (1) in the lengthwise direction, while the second strap (2) is arranged parallel to the second strap (2) in the transverse direction and intersects (weaves) with the first strap (1) at a right angle, forming a square mesh with a number of intersection points at the bottom, depending on the number of straps (1, 2) used. The straps (1, 2) are then gathered in an upward direction and looped together until the straps (1, 2) are woven together to form a square mesh with a number of intersection points at the top. and the ends of each strap meet and overlap. The number and spacing of the upper intersection points correspond to the number and spacing of the lower intersection points. - The handle (3) is a steel or metal plate with a U-shaped hole punched in the center, and the part of the steel plate inside the U-shaped hole is pushed out perpendicular to the part of the steel plate outside. This handle (3) is passed through perpendicularly by the first and second straps (1, 2) that loop and interweave at the top to secure the said straps (1, 2) at the intersection and for inserting the hook for lifting. - The clip (4) is made of steel or metal, for securing the ends of each first and second strap (1, 2) at the overlapping ends. 2. The sack lifting structure according to claim 1 with fastening method (5) is an additional component for securing the first and second straps (1, 2) together at the bottom intersection. 3. The sack lifting structure under claim 2, which selects the fastening method (5) as mentioned above from a group consisting of belts, adhesives, staples, either individually or in combination. 4. The sack lifting structure under claim 3, where the belt is made of steel or metal, is of the shape of a square with an opening slightly larger than the width of the first and second straps (1, 2), so that the first and second straps (1, 2) intersect in such a way that when strap 1 (1) is under the belt, strap 2 (2) is on the belt (Type A); when strap 1 (1) is on the belt, strap 2 (2) is under the belt (Type B). In both cases, the strap under the belt overlaps the strap on the belt. 5. Any of the sack lifting structures under any of the claims 1 through 4, which use two or more First (1) straps and two or more Second (2) straps, which are appropriate; two First (1) straps and two Second (2) straps, which are also appropriate; or two First (1) straps and three Second (2) straps. 6. The sack lifting structure under claim 5, where the belt insertion at the bottom intersection is arranged in alternating A and B patterns both lengthwise and crosswise. 7. Any sack lifting structure under any of the claims 1 through 6 that has plastic sheets as an additional component for covering the mesh and all bottom intersections to support the sacks properly should also have rigid cardboard or other shaped paper or plastic sheets as an additional component for supporting the inside of the first and second straps (1, 2) to help distribute the tension of the first and second straps (1, 2) to the sack body. 8. Any one of the sack lifting structures under claims 1 through 7, for use in cargo handling and maritime transport. 9. The method of constructing the sack lifting structure of claim 1 has the following main steps: - A number of first (1) straps are placed parallel to each other lengthwise, and a number of second (2) straps are placed parallel to each other crosswise, and intersected (woven) with the first (1) straps perpendicularly, forming a square mesh with a number of intersection points depending on the number of straps (1, 2) used, for the sacks to be placed on. - The ends of the first and second (1, 2) straps are gathered upwards to be placed along the sides of the stack of sacks and then looped lengthwise and crosswise until the straps (1, 2) are woven together to form a square mesh with intersection points (woven points) at the top of the structure for placement on top of the sacks. - A steel or metal handle (3) is inserted through the first and second (1, 2) straps (1, 2) at the aforementioned intersection points (woven points) in a manner perpendicular to the first and second (1, 2) straps (1, 2). - A steel strapping machine or plastic strapping machine is used to pull the ends of each strap together until they are taut and overlap. Then take a steel or metal clip (4) and squeeze the overlapping wire ends with a crimping tool until tight. That completes the process. 10. The method of constructing the sack lifting structure according to claim 9, which involves the first and second strap fastening steps (1, 2) at the bottom intersection with fastening trajectories (5) of choice from belt, adhesive, or sack, either individually or in combination, as an additional step before performing the strap end gathering step.