Auxiliary belt for lifting cargo beds.

Abstract

The number of parts can be reduced and the fasteners can be suspended from the locking mechanism. [Solution] This is an auxiliary belt for lifting a cargo bed, having a locking fitting 4 at the connecting end 3 of the belt member 2 that locks onto a locking part provided on the cargo bed side, and a gripping part 6 at the free end 5 of the belt member 2 that is grasped by hand. The connecting end 3 of the belt member 2 is inserted into the elongated hole 4a of the locking fitting 4 with the belt width W in the vertical direction and wrapped around the belt winding part 4b, and the tip side of the wound connecting end 3 is twisted 180 degrees and connected to the base end side of the connecting end 3.

Description

Technical Field

[0001] The present invention relates to an auxiliary belt for lifting a loading platform that can be used in a transport container or the like.

Background Art

[0002] As disclosed in Patent Document 1 and FIG. 7, in a transport container 30 such as a truck, movement, dropping, etc. of a load T placed on a loading platform N are prevented by stretching a regulating belt 33 between left and right side walls W of the transport container 30. The regulating belt 33 has locking fittings 4 at both ends thereof, and a rail 35 having a large number of locking portions 35a formed on left and right walls W of the transport container 30 is provided, and the locking fittings 4 at both ends of the belt 33 are locked to the locking portions 35a of this rail 35.

[0003] By the way, in such a transport container 30, an operator needs to ascend and descend to the loading platform N for loading and unloading of the load T onto the loading platform N and for attachment and detachment of the belt 33. Therefore, an auxiliary belt 37 for lifting a loading platform as shown in FIG. 8 is commercially available.

[0004] This auxiliary belt 37 for lifting a loading platform has a locking fitting 4 that is locked to a locking portion 35a provided on the loading platform N side (rails 35 on left and right walls W of the transport container 30) at a connecting end portion 38a of a belt member 38, and has a gripping portion 39 that is gripped by a human finger at a free end portion 38b of the belt member 38.

[0005] The gripping portion 39 of the auxiliary belt 37 is formed by a grip ring 41, the free end portion 38b of the belt member 38 is wound around the grip ring 41 and sewn, the connecting end portion 38a is also wound around a connecting ring 42 and sewn, and the connecting ring 42 is inserted into a vertically long hole 4a of the locking fitting 4 and fitted and connected to a hanging portion 4b.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] The aforementioned prior art has a grip ring 41 and a connecting ring 42 at both ends of the belt member 38. By connecting it to the locking fitting 4, the worker can grasp the connecting ring 42 and move up and down onto the loading platform N. When not in use, the connecting ring 42, belt member 38, and grip ring 41 can be moved back so that they hang vertically from the locking fitting 4 and do not become an obstacle.

[0008] However, it requires three components: a connecting ring 42, a belt member 38, and a grip ring 41, which increases costs.

[0009] Therefore, it is conceivable to directly insert the connecting end 38a of the belt member 38 into the elongated hole 4a of the locking fitting 4 and fit it into the hook portion 4b. However, since the hook portion 4b is elongated, if the connecting end 38a is wrapped around it and sewn in place, the belt width direction will be vertical, and this vertical orientation will be rigid. When not in use, the connecting end 38a will protrude horizontally from the locking fitting 4, potentially becoming an obstacle for the worker.

[0010] The present invention aims to provide an auxiliary belt for lifting and lowering cargo beds that can solve the problems of the conventional technology described above.

[0011] The present invention aims to provide an auxiliary belt for lifting and lowering a cargo bed, which reduces the number of parts and allows it to hang down from a locking fitting by forming a connecting end on the belt member and twisting the connecting end by 180 degrees. [Means for solving the problem]

[0012] A specific means for solving the problems in the present invention is a cargo bed lifting auxiliary belt having a locking fitting 4 that is locked to a locking part provided on the cargo bed side at the connecting end 3 of the belt member 2, and a gripping part 6 that is grasped by hand at the free end 5 of the belt member 2, The connecting end 3 of the belt member 2 is inserted into the elongated hole 4a of the locking fitting 4 with the belt width W in the vertical direction and wrapped around the belt winding portion 4b, and the tip side of the wrapped connecting end 3 is twisted 180 degrees and connected to the base end side of the connecting end 3. [Effects of the Invention]

[0013] According to the present invention, the connecting end 3 can be integrally molded to the belt member 2, and the belt member 2 can be suspended downward from the locking fitting 4. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front view showing an embodiment of the present invention. [Figure 2] This is the rear view. [Figure 3] The same plane diagram. [Figure 4] This is a perspective view of the same main section. [Figure 5] This is a perspective view of the main part in a suspended state. [Figure 6] This is a right side view of the main part in a suspended state. [Figure 7] This is an explanatory diagram applied to a transport container. [Figure 8] This is an explanatory diagram of the conventional technology. [Modes for carrying out the invention]

[0015] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0016] Figures 1 to 7 illustrate an auxiliary belt 1 for lifting and lowering a cargo bed, applicable to a transport container 30 such as a truck.

[0017] In Figure 7, the transport container 30 comprises a loading platform N on which the cargo T is placed, and left and right walls W above it. Rails 35 with numerous locking parts 35a are provided on the left and right side walls W, and a regulating belt 33 that prevents the cargo T placed on the loading platform N from moving or falling has locking fittings 4 at both ends of the belt that are locked to the locking parts 35a of the rails 35.

[0018] The locking portion 35a of the rail 35, although also shown in FIG. 8, forms an I or + groove in the rail 35 formed of a strip iron plate or the like, and utilizes the upper and lower groove edges Ma, Mb of the vertical groove. The locking fitting 4 has upper and lower engaging recesses 4u, 4d that engage with the upper and lower groove edges Ma, Mb.

[0019] The auxiliary belt 1 is a tool that assists an operator when ascending and descending on the loading platform N for the loading and unloading of the luggage T onto the loading platform N and the attachment and detachment of the belt 33. It has a locking fitting 4 that can be locked to the locking portion 35a, and a belt member 2 connected to the locking fitting 4.

[0020] The said locking fitting 4 can apply the locking fitting 4 of the regulation belt 33 of the prior art or the locking fitting used for the auxiliary belt for lifting and lowering the loading platform of the prior art shown in FIG. 8.

[0021] As shown in FIGS. 1 to 6, the locking fitting 4 is formed by folding sheet metal in two, opening a vertically long hole 4a in front of the free end, and forming a belt winding portion 4b at the free end. A shaft 4c penetrates near the bent end portion and pivotally supports the middle portion of the lock member 11.

[0022] At the upper and lower ends on the bent side of the locking fitting 4, a deep engaging recess 4u on the upper side and a shallow engaging recess 4d on the lower side are formed. The lock member 11 can advance and retreat within the deep engaging recess 4u and is biased by a spring 12 so as to enter the deep engaging recess 4u. The deep engaging recess 4u of the locking fitting 4 has a depth approximately twice that of the shallow engaging recess 4d. When the upper engaging recess 4u of the locking fitting 4 is fitted to the upper groove edge Ma of the locking portion 35a, the lower portion of the locking fitting 4 can be inserted into the vertical groove. After insertion and lowering, the shallow engaging recess 4d is fitted to the lower groove edge Mb. In this state, a space is formed at the inner part of the deep engaging recess 4u, and the lock member 11 enters there to restrict the lifting of the locking fitting 4. Thereby, the locking fitting 4 is locked to the locking portion 35a.

[0023] The locking mechanism can be released by retracting the locking member 11 from the deep engagement recess 4u against the spring 12, thereby moving the locking fitting 4 upward.

[0024] The belt member 2 is a double-layered structure formed by folding a single cloth belt, with one end being longer than the other. This longer end becomes the connecting end 3, which is connected to the locking fitting 4, while the folded end is the free end 5 and forms a gripping portion 6 for manual handling.

[0025] The connecting end 3 of the belt member 2 is inserted into the elongated hole 4a of the locking fitting 4 with the belt width W in the vertical direction and wrapped around the belt winding portion 4b. The tip of this wrapped connecting end 3 is twisted 180 degrees and sewn to the base end of the connecting end 3.

[0026] More specifically, the connecting end 3 of the belt member 2 has a two-piece structure in the portion that contacts the belt winding portion 4b, but the tip side has an outer end A that protrudes more than the inner end B that protrudes, and the upper part of the outer surface of the outer protruding end A is wound around the inner circumference. It is twisted 180 degrees to the side and sewn together to face the lower part of the inner circumferential surface on the base end side of the connecting end 3.

[0027] The aforementioned "180-degree twist" refers to a left-handed half-turn towards the tip of end A in the context of a Möbius strip, which, when viewed from the tip of end A, is a right-handed half-turn.

[0028] When the connecting end 3 of the belt member 2 is pulled horizontally from the locking fitting 4, as shown in Figures 1 to 4, there is only a twisted portion in its taut position. However, when it hangs down from the locking fitting 4, the base end of the connecting end 3 covers the upper (outside) side of the 180-degree twisted tip of the connecting end 3, and as seen in the right side view of Figure 6, it assumes a right-front position as if being dressed, with the lower free end of the locking fitting 4 held close to the body, allowing it to assume a retracted position that does not unintentionally protrude from the locking fitting 4 and does not get in the way.

[0029] The gripping portion 6 of the belt member 2 is formed by folding the free end 5 of the belt member 2 in the direction of the belt width W to create a double shape, and then attaching the tip side of the free end 5 to the base end side to form a ring shape. This gripping portion 6 is an alternative to the conventional gripping ring 41, and can be gripped by inserting a human finger into the ring. Since it is integrally molded using the belt member 2, the number of parts is reduced and it is easier to grip.

[0030] In the above embodiment, the connecting end 3 of the belt member 2 is "twisted half a turn to the left towards the outwardly protruding end A", but it is also possible to "twist the outwardly protruding end A half a turn to the right towards the tip". This is effective when the locking fitting 4 is inverted and the locking member 11 is facing downward, and when the belt member 2 hangs down from the locking fitting 4, the base end of the connecting end 3 covers the lower free end of the inverted locking fitting 4, and the upper side of the tip of the connecting end 3 which is twisted 180 degrees.

[0031] In the above-described embodiment, the auxiliary belt for lifting a cargo bed has a locking fitting 4 at the connecting end 3 of the belt member 2 that is locked to a locking part provided on the cargo bed side, and a gripping part 6 at the free end 5 of the belt member 2 that is grasped by hand, wherein the connecting end 3 of the belt member 2 is inserted into the elongated hole 4a of the locking fitting 4 with the belt width W in the vertical direction and wrapped around the belt winding part 4b, and the tip side of the wound connecting end 3 is twisted 180 degrees and connected to the base end side of the connecting end 3.

[0032] This configuration allows the connecting end 3 to be integrally molded with the belt member 2, and also allows the belt member 2 to hang downward from the locking fitting 4.

[0033] Furthermore, in the above embodiment, the auxiliary belt for lifting a cargo bed has a locking fitting 4 at the connecting end 3 of the belt member 2 that is locked to a locking part provided on the cargo bed side, and a gripping part 6 at the free end 5 of the belt member 2 that is grasped by hand, wherein the belt member 2 is made by folding a single belt in the middle to form the gripping part 6 at the folded part, and the folded double end of the belt is inserted into the elongated hole 4a of the locking fitting 4 with the belt width W in the vertical direction and wrapped around the belt winding part 4b to form the connecting end 3. The tip end of the connecting end 3 of the belt member 2 has an outer end A that protrudes more than the inner end B that protrudes, and the upper part of the outer surface of the outer part

[0034] This configuration allows the connecting end 3 to be integrally molded with the belt member 2, eliminating the need for a separate connecting ring, and enabling the belt member 2 to hang downwards while embracing the lower part of the free end of the locking fitting 4.

[0035] Furthermore, in the above embodiment, the gripping portion 6 of the belt member 2 is formed by folding the free end 5 of the belt member 2 in the belt width W direction to create a double shape, and attaching the tip side of the free end 5 to the base end side to create a loop shape.

[0036] This configuration allows the gripping portion 6 to be integrally molded with the belt member 2, eliminating the need for a separate gripping ring.

[0037] It should be noted that the present invention is not limited to the embodiments described above, and the shape, configuration, and combination of the components can also be changed.

[0038] For example, the auxiliary belt may have its connecting end 3 integrally molded with the belt member 2, and a conventional grip ring 41 may be connected to the gripping portion 6.

[0039] Furthermore, although the connecting end 3 of the belt member 2 has a two-piece structure in the portion that contacts the belt winding portion 4b, it is also possible to make the end A on the outer side of the winding and the end B on the inner side of the winding two pieces of the same length into two pieces, and twist both ends A and B 180 degrees toward the inner circumference side so that they face the lower part of the inner circumference side of the base end of the connecting end 3 and sew them together. [Explanation of Symbols]

[0040] 1. Support belt 2 Belt members 3 Connecting end 4. Locking mechanism 4a Elongated hole 4b Belt winding section 4c axis 4d Engagement recess 4u Upper engagement recess 4d Lower engagement recess 5 Free end 6 Gripping part 11 Locking member 12 Springs 30 transport containers 33 Regulatory belt 35 rails 35a Locking part 38 Belt component 38a Connecting end 38b Free end 39 Gripping part 41 Grip Ring 42 Connecting rings A end B end Ma Upper groove edge Mb lower groove edge N cargo bed T Luggage W Wall

Claims

1. A loading platform lifting auxiliary belt having a locking fitting (4) at the connecting end (3) of the belt member (2) that is locked to a locking part provided on the loading platform side, and a gripping part (6) at the free end (5) of the belt member (2) that is grasped by hand, The auxiliary belt for lifting a cargo bed is characterized in that the connecting end (3) of the belt member (2) is inserted into the elongated hole (4a) of the locking fitting (4) with the belt width (W) in the vertical direction and wrapped around the belt winding portion (4b), and the tip side of the wound connecting end (3) is twisted 180 degrees and connected to the base end side of the connecting end (3).

2. A loading platform lifting auxiliary belt having a locking fitting (4) at the connecting end (3) of the belt member (2) that is locked to a locking part provided on the loading platform side, and a gripping part (6) at the free end (5) of the belt member (2) that is grasped by hand, The belt member (2) is formed by folding a single belt in the middle to create the gripping portion (6) at the folded portion, and inserting the double end of the folded belt into the elongated hole (4a) of the locking fitting (4) with the belt width (W) in the vertical direction, and wrapping it around the belt winding portion (4b) to form the connecting end (3). The auxiliary belt for lifting a cargo bed is characterized in that the leading end of the connecting end (3) of the belt member (2) has an outer end (A) that protrudes more than the inner end (B) that will be wrapped around, and the upper part of the outer surface of the outer part of the outer part is twisted 180 degrees toward the inner circumference and connected to the lower part of the inner circumference of the base end of the connecting end (3).

3. The auxiliary belt for lifting a loading platform according to claim 1 or 2, characterized in that the gripping portion (6) of the belt member (2) is made double-shaped by folding the free end (5) of the belt member (2) in the belt width (W) direction, and the tip side of the free end (5) is attached to the base end side to form a loop shape.

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