TH13100U - Sack lifting structure - Google Patents

Abstract

The sack lifting structure (also called the sack lifting yoke) according to this invention has the following main components: prefabricated base plate (10), first and second straps (3, 4), belt (5), handles (6), and clips (7). It has the following characteristics: - The prefabricated base plate (10) is a flat sheet or plywood (1) with a number of legs or studs underneath the flat sheet (1) for ease of movement, and a number of fastening devices (2) are embedded in the flat sheet (1) with S screws. The fastening devices (2) are round or square sockets, at the bottom of which is a spring (21) which can move up and down according to the weight pressing on it. At the mouth of the socket there are four iron claws (22). These iron claws (22) serve to hold the belts (5) - a number of the first and second straps (3, 4) are arranged on the prefabricated panel (10), with the first strap (3) arranged parallel to and parallel to the longitudinal edge of the prefabricated panel (10), and the second strap (4) arranged parallel to and parallel to the transverse edge of the prefabricated panel (10) and intersecting the first strap (3) at a right angle and intersecting to form a square mesh (network) creating a number of intersection points (network corners). Then the straps (3, 4) are gathered in an upward direction and looped together until the straps (3, 4) intersected to form a mesh, creating intersection points (network corners) 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. - Belt (5) is threaded through by the first and second straps (3, 4) to secure the straps together at the intersection (weaving point) at the top of the sling and to grip the teeth (22) of the fastening device (2) to secure the straps (3, 4) to the prefabricated floor panel (10). - The handle (6) is threaded through by the first and second straps (3, 4) that loop and weave together at the top of the sling to secure the straps at the aforementioned intersection (weaving point) and to insert the steel hooks for lifting. - Clips (7) are used to fasten the ends of each first and second strap (3, 4) that loop and overlap at the top of the sling. These components work together in a weaving and securing manner to create a structure that tightly binds the stack of sacks into a single mass, making it difficult for them to fall out. This allows for easy lifting and moving of stacks of sacks in large quantities at a time, saving time and labor used in arranging, 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 transit. The description also includes how such structures are constructed.

Claims (8)

1. The sack lifting structure, which consists of the main components, is a prefabricated floor plate (10), a number of first and second straps (3, 4), belts (5), handles (6), and clips (7). It has the following characteristics: - The prefabricated floor plate (10) for placing the sacks is a flat plate or plywood (1), with a number of legs or L-shaped buttons underneath the flat plate (1) for easy movement, and a number of fastening devices (2) for securing the first and second straps (3, 4) to the prefabricated floor plate (10) through belts (5). The fastening device (2) is a round or square socket with a spring (21) at the bottom that can move up and down according to the weight pressing on it. At the mouth of the socket there are four iron or metal claws (22). These claws (22) serve to hold the belt (5). This fastening device (2) is embedded in the flat plate (1) with S screws in such a way that the iron claws (22) protrude above the flat plate (1). - A number of first and second straps (3, 4), which are flat iron, metal or plastic straps for securing the sacks, are arranged on the prefabricated plate (10) in such a way that the first strap (3) is arranged parallel to and parallel to the longitudinal edge of the prefabricated plate (10), while the second strap (4) is arranged parallel to and parallel to the transverse edge of the prefabricated plate (10) and intersects the first strap (3) at a right angle and intersects to form a square mesh, creating a number of intersection points on the back, depending on the number of straps (3, 4) used. The straps (3, 4) are fastened together at this intersection with belt (5), and this belt (5) is fastened to the plate. The finished floor (10) is secured with the teeth (22) of the fastening device (2), and the straps (3, 4) are gathered in an upward direction and looped together until the straps (3, 4) are woven into a square mesh, creating intersections at the top, and the ends of each strap meet and overlap. The number and spacing of the top intersections correspond to the number and spacing of the bottom intersections. - The belt (5) is made of steel or metal, has a square shape, and the gaps in the circle are larger than the width. The width of the first and second straps (3, 4) is slightly reduced so that the first and second straps (3, 4) intersect in such a way that when the first strap (3) is under the belt loop, the second strap (4) is on the belt loop (Type A); when the first strap (3) is on the belt loop, the second strap (4) is under the belt loop (Type B). In both cases, the strap under the belt loop overlaps the strap on the belt loop. The belt (5) with the aforementioned straps (3,4) is placed on the finished base plate (10) with the belt (5) on the fastening device (2). The teeth (22) of the fastening device (2) hold the belt (5) in place. The handle (6) is a steel or metal plate with a U-shaped hole 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 (6) is passed through by the first and second straps (3, 4) which interweave at the top in such a way that Perpendicular to the straps (3, 4) mentioned above to secure the straps (3,4) mentioned above at the intersection and for inserting the hooks for lifting - Clip (7) made of steel or metal for securing the ends of the first and second straps (3, 4) each at the ends where they overlap. 2. The sack lifting structure as per claim 1 may include additional plastic sheets for covering the netting, as well as all bottom intersections to support the sacks. 3. The sack lifting structure as per claim 1 or 2 may have rigid cardboard or other shaped paper or plastic sheet as an additional component to support the inside of the first and second straps (3, 4) to help distribute the tension of the first and second straps (3,4) to the sack body. 4. The sack lifting structure under any of the claims 1 to 3, which uses two of the first (3) and second (4) straps, creates four lower intersection points which are threaded with belts (5) in alternating A and B configurations both lengthwise and transversely. 5. The sack lifting structure under any one of the claims 1 through 3, which uses two first (3) straps and three second (4) straps, creates six lower intersection points, divided into two rows of three points each, which are to be inserted with belts (5) in A, B and A configurations for the first row and B, A and B configurations for the second row. 6. A sack lifting structure under claim 1 or 2 in which two or more first (3) straps and two or more second (4) straps are used. 7. Any one of the sack lifting structures under claims 1 through 6, for use in cargo handling and maritime transport. 8. The method for constructing the sack-lifting structure of any one of the claims 1 through 6 has the following main steps: - Place a number of first (3) straps parallel to and parallel to the longitudinal edge of the prefabricated floor panel (10), and place a number of second (4) straps parallel to and parallel to the transverse edge of the prefabricated floor panel (10), and interweave them with the first (3) straps perpendicularly to create a net for the structure. - Insert belts (5) at the intersections of the first (3) and second (4) straps in alternating pattern A and pattern B, both longitudinally and transversely. - Once the structure with the specified interweave lengths is created, place it on the prefabricated floor panel (10), with the intersections secured by belts (5) on fasteners (2) so that their teeth lock belts (5). The number and spacing of fasteners (2) correspond to the number and spacing of the intersections. - Gather all the ends of the first and second (3, 4) straps up to overlap the sides and loop around. The longitudinal and transverse lines are placed on top of the stack of sacks to form a net with the intersection points of the first and second straps (3, 4) at the top of the structure placed on top of the stack of sacks - insert the steel or metal handles (6) through the first and second straps (3, 4) at the intersection points in a manner perpendicular to the first and second straps (3, 4) so that the ends of each strap overlap - use a steel strapping machine or a plastic strapping machine to pull the ends of the straps together until taut, and then use steel or metal clips (7) to squeeze the overlapping ends of the straps with a clamp until they are tight and cannot be loosened, until the stack of sacks is lifted and wrapped in one mass by the structure. This completes the process.