Belt sling

Abstract

To provide a belt sling which can accommodate various lengths and is highly safe when suspending an article.SOLUTION: A belt sling 1 comprises a chain-like sling body 2 made of a belt-like woven fabric using fiber filament yarn, with endless flexible loops 3 connected in series and used as locking eyes 4 when suspending an article, and first hook-and-loop fasteners 5 provided on an inner surface 3a of each flexible loop 3, joining opposing inner surfaces 3a together to close the flexible loop 3. The first hook-and-loop fasteners 5 have male and female structures, and the male and female structures are alternately arranged on the inner surface 3a of the flexible loop 3 in the extension direction of the flexible loop 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a belt sling that is used to suspend an object and that can be adjusted to at least two different lengths. [Background technology]

[0002] First, the conventional situation will be described with reference to FIGS. Fig. 6 is a perspective view of a pole transformer suspended by a conventionally known belt sling. Fig. 7 is a perspective view of the conventionally known belt sling, and Fig. 8 is a partial perspective view showing how the eye of the conventionally known belt sling is fastened to the suspension lug of the pole transformer. Generally, a pole-mounted transformer 50 installed on a utility pole comprises, as shown in FIG. 6, a transformer body 51 with lifting lugs 52 on the sides for lifting, a lid 53 installed on the top of the transformer body 51, and a lid press member 54 fixed to the top of the lifting lug 52 with a bolt 54a so as to hold down the lid 53. Furthermore, a conventionally known belt sling 60 used to suspend such a pole-mounted transformer 50 with a hook 70 operated by a winch or the like (not shown) is composed of a belt body 61 made of a belt-shaped woven fabric using, for example, fiber filament yarn, and loop-shaped eyes 62 (locking portions) formed at each of its longitudinal ends, as shown in Figures 6 and 7.

[0003] Furthermore, when suspending the pole transformer 50 using the conventionally known belt sling 60 as described above, the eyes 62 of the belt sling 60 shown in FIG. 7 can be fastened to each of a pair of suspension ears 52 (see FIG. 6) provided at opposing positions on the periphery of the cover 53 when the pole transformer 50 is viewed in plan view. More specifically, as shown in Figure 8, the eye 62 of the belt sling 60 is hooked onto the recess 52a formed vertically below the hanging ear 52 of the pole-mounted transformer 50, and the belt body 61 is positioned so as to be suspended over the lid 53. Furthermore, FIG. 6 shows the state in which a hook 70 is engaged with the middle of the belt body 61 stretched over the lid 53 and pulled up by operating the hook 70 with a winch or the like (not shown).

[0004] Furthermore, the conventionally known belt sling 60 shown in FIG. 7 is not only used for suspending the pole transformer 50, but is also used for various other tasks such as cargo handling. For this reason, in order to accommodate various uses, conventionally known belt slings 60 exist that have a variety of total lengths, which are the sum of the lengths of the eye 62 and the belt body 61. However, even if multiple types of belt slings 60 with different lengths are prepared, there are cases in which the belt sling 60 of the optimum length for the work cannot be used when actually using it, such as when the belt sling 60 of the optimum length for the work has already been taken by another worker. In such cases, the worker may be forced to work with a belt sling 60 that is longer than optimal.

[0005] In particular, if the belt sling 60 used to suspend the pole-mounted transformer 50 as shown in FIG. 6 is longer than necessary, there is a concern that the following problems may occur. That is, if the length of the belt sling 60 is longer than necessary, the swaying of the pole transformer 50 when the pole transformer 50 is moved closer to its installation position by operating a winch or the like provided on the crane becomes relatively larger than when a belt sling 60 of an appropriate length is used. In this case, there is a risk of contact with the surrounding suspended utility poles or workers climbing the poles, which is dangerous. Furthermore, if the length of the belt sling 60 is longer than necessary, there is an increased risk that the winch that controls the hanging position (height) of the pole-mounted transformer 50 will come into contact with the metal fittings on top of the pole-mounted transformer 50, which creates another problem in that it becomes difficult to bring the pole-mounted transformer 50 close to the installation position. Prior applications that address the above-mentioned problems are known, for example, from Patent Documents 1 to 3 shown below.

[0006] Patent Document 1 discloses an invention entitled "Belt Sling" that relates to a fiber belt sling used to secure heavy objects placed on the bed of a trailer or the like. The belt sling disclosed in Patent Document 1 has a main body in which narrow woven fabric made from fiber filament yarn is folded into a ring shape and the middle part is sewn to form a pair of first hanging ring parts at both ends, and second hanging ring parts formed into a ring shape from narrow woven fabric made from fiber filament yarn and fixed to the middle part in multiple numbers, and each end of these second hanging ring parts is sewn and fixed together with the middle part which is folded in two layers. According to the invention disclosed in Patent Document 1 having the above configuration, by using a first hanging ring portion and a second hanging ring portion that is not arranged adjacent to the first hanging ring portion as the eyes of the belt sling, it is possible to provide a belt sling that can accommodate multiple lengths with just one sling.

[0007] Patent Document 2 discloses an invention entitled "Sling" that relates to a sling that connects a transport machine such as a crane to an object when the object is lifted using the transport machine. The sling disclosed in Patent Document 2 is described using the symbols shown in FIG. 2 of the same document as they are: Section A of one webbing 10 A 11 is folded back in a circular shape to form a circular portion α1, and section A 11 A 12 is stretched linearly to form one side portion γ1 of the belt-shaped portion γ, and section A 12 A 13 is folded back into a ring to form a ring portion β1, and section A 13 A 14 Section A 11 A 12 The one side portion γ2 of the belt-shaped portion γ is formed by overlapping the 14 A 20 The annular portion α2 is formed by folding back the annular portion α1 so as to surround the outer periphery of the annular portion α1. 10 Point A in the specific section and the annular part α2 in the vicinity 14 Point A in the specific section of the vicinity, the circular part α1 11 Point A in the specific section and the annular part α2 in the vicinity 20The specific section in the vicinity, and the specific section of the one surface portion γ1 and the specific section of the one surface portion γ2 of the band-shaped portion γ are sewn together. The invention disclosed in Patent Document 2 having the above configuration also makes it possible to provide a belt sling that can accommodate a variety of lengths with just one belt sling.

[0008] Patent Document 3 discloses an invention entitled "Flexible Cordage Chain and Method for Forming the Same" relating to a non-metallic linked loop structure. The flexible cordage chain disclosed in Patent Document 3 is a flexible cordage chain including a plurality of corresponding flexible loops linked together, each loop forming a loop including a core portion made of a non-metallic strand wound endlessly to a predetermined loop size and surrounded in a flexible outer casing in a non-fixed state, and characterized in that each loop of the chain is interconnected with at least one other loop of substantially the same structure, thereby allowing each strand of the chain to exert a uniform tensile force. According to the invention disclosed in Patent Document 3 having the above configuration, by using each loop as an eye, it may be possible to use a single belt sling that can accommodate a variety of lengths. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-23006 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-132006 [Patent Document 3] Japanese Patent Application Publication No. Hei 1-172194 Summary of the Invention [Problem to be solved by the invention]

[0010] The inventions disclosed in each of Patent Documents 1 to 3 include two or more loops used as locking eyes so that one belt sling can be adapted to a variety of lengths. Furthermore, in the inventions disclosed in each of Patent Documents 1 to 3, the eye that is not used when suspending an article is placed near the article to be suspended with the loop of the flexible loop left open. Furthermore, when suspending a pole-mounted transformer 50, such as that shown in Figure 6, using the inventions disclosed in each of Patent Documents 1 to 3, the work is mainly carried out close to the utility pole, so if the eye (locking ring) that is not used to suspend the pole-mounted transformer 50 is left open, there is a risk that the scaffolding bolts for climbing the pole or the protruding parts of the power transmission equipment will get caught in the ring, interfering with the work.

[0011] The present invention was made to address such conventional circumstances, and its purpose is to provide a belt sling that can accommodate multiple lengths and provides excellent safety and ease of use when suspending objects. [Means for solving the problem]

[0012] The first invention for solving the above problems is a belt sling, which is made of a belt-shaped fabric made of fiber filament yarn and has a chain-like sling body made of endless flexible loops connected in series to serve as fastening eyes when suspending an object, and first hook-and-loop fasteners provided on the inner surfaces of each flexible loop to join the opposing inner surfaces together to close the flexible loop, characterized in that the first hook-and-loop fasteners have male and female structures, and the male and female structures are arranged alternately on the inner surfaces of the flexible loops in the direction of extension of the flexible loops. In the first invention of the above configuration, the sling body is made into a chain-like shape with endless flexible loops connected in series, and by selecting any two desired flexible loops arranged along the length of the sling body and using them as eyes, it can be used as a belt sling that can accommodate multiple (at least two) different lengths. Furthermore, the first hook-and-loop fastener in the first invention has the effect of keeping the flexible loop that is not used as an eye in a closed state when an article is suspended using the above-mentioned sling body. Furthermore, by arranging the male and female structures that make up the first hook-and-loop fastener alternately on the inside surface of each flexible loop in the direction in which the flexible loop extends, it is possible to easily close the flexible loop no matter where the flexible loop is crushed from the outside. In other words, it has the effect of reducing the risk of the male structures or female structures that make up the first hook-and-loop fastener unintentionally overlapping on each other inside the flexible loop when the flexible loop is crushed from the outside surface side, making it impossible to close the flexible loop.

[0013] The second invention is the above-mentioned first invention, characterized in that a second hook-and-loop fastener is provided on the outer surface of any flexible loop to join and hold the outer surface of another flexible loop, and this second hook-and-loop fastener has a male structure and a female structure, and the male structures and female structures are arranged alternately on the outer surface of the flexible loop and in the direction of extension of the flexible loop. The configuration of the second hook-and-loop fastener in the second invention described above is the same as that of the first hook-and-loop fastener. Furthermore, when suspending an article using the belt sling of the second invention, the flexible loop not used as an eye can be joined to (temporarily fixed in) the outer surface of the flexible loop used as the eye by the second hook-and-loop fastener.

[0014] A third invention is the above-mentioned first or second invention, characterized in that the direction in which the male structure and the female structure are arranged is inclined with respect to the direction in which the flexible loop extends. The third invention having the above configuration has the effect of more reliably reducing the risk of the male structures or female structures constituting the first or second hook-and-loop fastener unintentionally overlapping each other and making it impossible to join them when a flexible loop not being used as an eye is crushed from its outer surface to close it, or when a flexible loop not being used as an eye is joined to the outer surface of another flexible loop to temporarily fix it.

[0015] A fourth invention is the first or second invention described above, characterized in that the male structure and the female structure are color-coded to distinguish them. In the fourth invention having the above configuration, the male and female structures are color-coded, making them easy to distinguish visually. In this case, when compressing a flexible loop from its outer surface to close it, or when joining a flexible loop not being used as an eye to the outer surface of another flexible loop to temporarily secure it, the worker can consciously avoid the male structures or female structures of the first or second hook-and-loop fastener overlapping each other. [Effects of the Invention]

[0016] According to the first aspect of the present invention, a belt sling that can accommodate a plurality of (at least two) lengths can be provided, thereby increasing the versatility of the belt sling in terms of length. In addition, in the first invention, when hanging an item, flexible loops that are not used as eyes can be kept closed, thereby preventing the flexible loops that are not used as eyes from getting caught on protrusions or the like in the vicinity and interfering with the hanging operation of the item. This makes it possible to significantly improve the safety and operability during use of the first invention.

[0017] According to the second aspect of the present invention, a flexible loop that is not used as an eye can be temporarily fixed onto the outer surface of another flexible loop that is used as an eye. In this case, it is possible to more reliably prevent loops not being used as eyes from getting caught or entangled on nearby protrusions and interfering with the operation of hanging an article. Therefore, the safety and operability during use of the second invention can be further improved.

[0018] According to the third and fourth inventions, the operation of closing a loop not used as an eye or the operation of temporarily fixing a flexible loop not used as an eye onto the outer surface of another flexible loop being used as an eye can be performed more efficiently and reliably. This improves the operability of the belt slings of the third and fourth inventions, thereby improving the work efficiency when suspending an object using the third and fourth inventions. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 2 is an image diagram of a belt sling according to the present embodiment. [Figure 2] FIG. 2 is a partially enlarged view of the belt sling according to the embodiment. [Figure 3] 1 is a side view showing a first example of use of a belt sling according to the present embodiment. FIG. [Figure 4] FIG. 10 is a side view showing a second example of use of the belt sling according to the present embodiment. [Figure 5] FIG. 10 is a partially enlarged view showing a modified example of the first hook-and-loop fastener provided on the inner surface of each flexible loop. [Figure 6] FIG. 1 is a perspective view of a pole transformer suspended by a conventionally known belt sling. [Figure 7] FIG. 1 is a perspective view of a conventionally known belt sling. [Figure 8] FIG. 1 is a partial perspective view showing how the eye of a conventionally known belt sling is fastened to the hanging lug of a pole-mounted transformer. DETAILED DESCRIPTION OF THE INVENTION

[0020] A belt sling according to an embodiment of the present invention will be described in detail with reference to FIGS.

[0021] [1. Structure of the present invention] The structure of a belt sling according to an embodiment of the present invention (hereinafter simply referred to as "this embodiment") will be described with reference to FIGS. FIG. 1 is an image diagram of a belt sling according to this embodiment, and FIG. 2 is a partially enlarged view of the same belt sling. The belt sling 1A according to this embodiment is a sling used to suspend an object such as a pole transformer 100 (see FIG. 3 shown later). More specifically, the belt sling 1A of this embodiment is made of a belt-like woven fabric using fiber filament yarn, as shown in Figure 1, and is equipped with a chain-like sling body 2 made up of endless flexible loops 3 connected in series, which are used as locking eyes 4 when hanging an object (not shown), and a first hook-and-loop fastener 5 provided on the inner surface 3a of each flexible loop 3 that makes up the sling body 2, joining the opposing inner surfaces 3a of each flexible loop 3 to close the flexible loop 3.

[0022] In addition, the first hook-and-loop fastener 5 in the belt sling 1 of this embodiment consists of a male structure 5a, for example, made of resin, with tiny hook-shaped structures (not shown) densely packed on a plane, and a female structure 5b, also made of resin, with tiny loop-shaped structures (not shown) densely packed on a plane (see Figure 2). Furthermore, in the belt sling 1 of this embodiment, male structures 5a and female structures 5b having the desired width are arranged alternately on the inner surface 3a of each flexible loop 3 and in the direction in which the belt-like fabric that constitutes the flexible loop 3 extends, i.e., in the center line direction of the width of the flexible loop 3.

[0023] When the flexible loop 3 described above is compressed from its outer surface 3b (from the direction indicated by symbol P in FIG. 2), the overlapping portions of the male structure 5a and female structure 5b provided on its inner surface 3a join together, closing the loop of the flexible loop 3 (see FIG. 3 shown later). Note that the loop of the flexible loop 3 in the closed state can be easily returned to the open state by separating the overlapping portions. In addition, when the flexible loop 3 shown in Figure 2 is crushed from its outer surface 3b side (for example, from the direction indicated by symbol P in the figure), the male structures 5a or the female structures 5b cannot be engaged (joined) at the overlapping portions. Therefore, when the male structures 5a and female structures 5b of the first hook-and-loop fastener 5 are arranged alternately on the inner surface 3a of the flexible loop 3, the above-mentioned problems can be made less likely to occur by making the width of each male structure 5a or female structure 5b uneven rather than constant.

[0024] [2; How to use the present invention] A method of using the belt sling 1 according to this embodiment will be described with reference to FIGS. FIG. 3 is a side view showing a first example of use of the belt sling according to this embodiment, and FIG. 4 is a side view showing a second example of use of the belt sling according to this embodiment. More specifically, Figure 3 shows how a pole-mounted transformer 100 is suspended using the first and third flexible loops 3 as eyes 4, based on one end 2a of the sling body 2 in the belt sling 1 of this embodiment shown in Figure 1 above. FIG. 4 shows how a pole-mounted transformer 100 is suspended using the third and fifth flexible loops 3 as eyes 4, based on one end 2a of the sling body 2 in the belt sling 1 of this embodiment shown in FIG. 1. Furthermore, the pole transformer 100 to be suspended (item) has the same structure as the pole transformer 50 to be suspended by the belt sling 60 according to the prior art shown in Fig. 6. More specifically, the pole transformer 100 to be suspended comprises a transformer body 101 having lifting lugs 102 on the sides for lifting, a lid 103 installed on top of the transformer body 101, and a lid presser member 104 fixed to the top of the lifting lug 102 with a bolt 104a so as to press down on the lid 103.

[0025] As shown in Figure 3, if the sling body 2 in the belt sling 1 of this embodiment is composed of, for example, five endless flexible loops 3, and the first and third flexible loops 3 from one end 2a are used as eyes 4, the first and third flexible loops 3 (eyes 4) in the sling body 2 can be engaged with each of a pair of hanging ears 102 located at opposite positions on the periphery of the cover 103 when the pole-mounted transformer 100, which is the object to be hung, is viewed in a plan view, and then a hook 170 can be engaged with the second flexible loop 3 from one end 2a of the sling body 2. At this time, the fourth and fifth flexible loops 3 based on one end 2a of the sling body 2 are not used as eyes 4, so each flexible loop 3 can be crushed from its outer surface 3b side and kept closed by the first hook-and-loop fasteners 5 provided on each inner surface 3a. Thereafter, the hook 170 shown in FIG. 3 is operated by, for example, a winch (not shown) or the like, to suspend the pole transformer 100 by the belt sling 1 according to this embodiment.

[0026] On the other hand, as shown in Figure 4, if the sling body 2 in the belt sling 1 of this embodiment is composed of, for example, five endless flexible loops 3, and the first and fifth flexible loops 3 from one end 2a are used as eyes 4, the first and fifth flexible loops 3 (eyes 4) in the sling body 2 can be engaged with each of a pair of hanging ears 102 located at opposite positions on the periphery of the cover 103 when the pole-mounted transformer 100, which is the object to be hung, is viewed in a plan view, and then the hook 170 can be engaged with the third flexible loop 3 from one end 2a of the sling body 2. In this case, the second and fourth flexible loops 3 are not used as eyes 4 relative to one end 2a of the sling body 2, but they do not need to be closed because they transmit the load of the pole-mounted transformer 100 acting on the first and fifth flexible loops 3 (eyes 4) to the third flexible loop 3 to which the hook 170 is attached. Thereafter, the hook 170 shown in FIG. 4 is operated by, for example, a winch (not shown) or the like, to suspend the pole transformer 100 by the belt sling 1 according to this embodiment.

[0027] [3; Actions and effects of the present invention] 3 and 4, the belt sling 1 according to this embodiment can provide a belt sling that can accommodate multiple (at least two) lengths using a single sling body 2. Therefore, the belt sling 1 according to this embodiment can provide a belt sling that is highly versatile in terms of length when in use. Furthermore, when an object to be suspended (for example, a pole transformer 100, etc.) is suspended using the belt sling 1 according to this embodiment, the flexible loop 3 that is not used as the eye 4 can be kept closed. In this case, the flexible loop 3 that is not used as the eye 4 in the sling body 2 can be prevented from getting caught on protrusions or the like in the surrounding area and interfering with the hanging operation of the item to be hung (such as a pole-mounted transformer 100, etc.). As a result, the safety and workability during use of the belt sling 1 according to this embodiment can be significantly improved.

[0028] Furthermore, by arranging the male structures 5a and female structures 5b that constitute the first hook-and-loop fastener 5 alternately on the inner surface 3a of each flexible loop 3 of the belt sling 1 in this embodiment in the direction of extension of the flexible loop 3, it is possible to reduce the risk of the male structures 5a or female structures 5b unintentionally overlapping each other inside the flexible loop 3 when the flexible loop 3 is crushed from the outer surface 3b side to close it, making it impossible to close the flexible loop 3. That is, according to the belt sling 1 of this embodiment, the endless flexible loop 3 can be easily closed no matter where on the outer surface 3b side it is crushed.

[0029] Furthermore, when the belt sling 1 according to this embodiment is used to suspend a pole transformer 100 in particular, as shown in Figures 3 and 4, when the pole transformer 100 is suspended, a force can be applied to the flexible loop 3 (eye 4) that is engaged with the hanging lug 102, to pull the end that is not engaged with the recess 102a of the hanging lug 102 toward the center of the lid 103 of the pole transformer 100 (in the direction indicated by symbol Q in Figure 3). In this case, there is no need to use a fixing device or the like (for example, Patent Publication No. 2018-115045 "Sling belt and anti-detachment device for sling belt") to fix the endless flexible loop 3 hooked to the hanging lug 102 of the pole-mounted transformer 100 to the hanging lug 102, so the pole-mounted transformer 100 can be moved safely and smoothly. Therefore, the belt sling 1 according to this embodiment can improve workability and safety, particularly when the pole transformer 100 is suspended and moved.

[0030] [4; Modifications of the present invention] (Regarding the arrangement direction of the male and female structures of the first hook-and-loop fastener) FIG. 5 is a partially enlarged view showing a modified example of the first hook-and-loop fastener provided on the inner surface of each flexible loop. 5, the direction in which the male structure 5a and female structure 5b of the first hook-and-loop fastener 5 provided on the inner surface 3a of each flexible loop 3 is arranged may be inclined with respect to the extension direction of the flexible loop 3. In other words, the direction in which the male structure 5a and female structure 5b of the first hook-and-loop fastener 5 are arranged may not be perpendicular to the extension direction of the flexible loop 3. In this case, when using the belt sling 1 of this embodiment, when the flexible loop 3 not used as the eye 4 is crushed from its outer surface 3b side to close it, the male structures 5a or female structures 5b that make up the first hook-and-loop fastener 5 almost completely overlap with each other, which makes it possible to more reliably prevent the flexible loop 3 from being unable to be closed. Therefore, the operability and safety during use of the belt sling 1 according to this embodiment can be further improved.

[0031] (Regarding the second hook-and-loop fastener) Although not specifically shown, the belt sling 1 according to this embodiment may be provided with a second hook-and-loop fastener having the same configuration as the first hook-and-loop fastener 5 on the outer surface 3b of each flexible loop 3. In this case, too, it is preferable that the male structures 5a and female structures 5b on the outer surface 3b of each flexible loop 3 are alternately arranged in the direction in which the flexible loop 3 extends. In this case, when using the belt sling 1 according to this embodiment, flexible loops 3 that are not used as eyes 4 are kept closed, the closed flexible loop 3 can be temporarily fixed by joining it to the outer surface 3b of another flexible loop 3 that is being used as an eye 4 with the second hook-and-loop fastener. More specifically, for example, in the sling body 2 in Figure 3, the fifth flexible loop 3 (closed) based on one end 2a can be joined to the outer surface 3b of the third flexible loop 3 (open) and temporarily fixed thereto. In this case, when using the belt sling 1 of this embodiment, the closed flexible loop 3 that is not used as the eye 4 can be more reliably prevented from getting caught or tangled on surrounding protrusions. This further improves safety when the pole transformer 100 is suspended and moved around a utility pole using the belt sling 1 according to this embodiment.

[0032] (Regarding the color coding of the first and second hook-and-loop fasteners) In the belt sling 1 of this embodiment, the male and female structures of the first hook-and-loop fastener 5, or the first hook-and-loop fastener 5 and the second hook-and-loop fastener, provided on each flexible loop 3 may be color-coded so that they can be easily distinguished visually. In this case, the user (worker) of the belt sling 1 of this embodiment can understand at a glance the arrangement positions (boundary positions) of the male and female structures of the first hook-and-loop fastener 5 or the second hook-and-loop fastener on the inner surface 3a of each flexible loop 3, or on the inner surface 3a and outer surface 3b.Therefore, when closing a flexible loop 3 that is not used as an eye 4, or when joining a closed flexible loop 3 to the outer surface 3b of another flexible loop 3 that is being used as an eye 4 and temporarily fixing it, it is possible to intentionally avoid the male structures or female structures that make up the first hook-and-loop fastener 5 or the second hook-and-loop fastener overlapping with each other, making it impossible to join them. Therefore, when using the belt sling 1 of this embodiment in which the male and female structures of the first hook-and-loop fastener 5 or the second hook-and-loop fastener are color-coded, operability and safety during use can be further improved.

[0033] (About the core material of the flexible loop) The individual flexible loops 3 that make up the belt sling 1 of this embodiment may be made of a belt-shaped woven fabric using a single layer or multiple layers of fiber filament yarn, or this belt-shaped woven fabric may be formed into a bag shape and a core material made of resin or metal fiber filament yarn or the like stored inside. In particular, the latter case has the effect of improving the strength of each flexible loop 3. [Industrial Applicability]

[0034] As described above, the present invention is a belt sling that can accommodate multiple lengths and is safe and easy to use when suspending objects, and can be used in technical fields related to cargo handling and maintenance of power transmission equipment, etc. [Explanation of symbols]

[0035] DESCRIPTION OF SYMBOLS 1...belt sling 2...sling body 2a...one end 2b...other end 3...flexible loop 3a...inner surface 3b...outer surface 4...eye 5...first hook-and-loop fastener 5a...male structure 5b...female structure 50...pole-mounted transformer 51...transformer body 52...hanging ear 52a...recess 53...lid 54...lid retaining member 54a...bolt 60...belt sling 61...belt body 62...eye (retaining portion) 70...hook 100...pole-mounted transformer 101...transformer body 102...hanging ear 102a...recess 103...lid 104...lid retaining member 104a...bolt 170...hook

Claims

1. a chain-like sling body made of a belt-like woven fabric using fiber filament yarn, in which endless flexible loops are connected in series and used as locking eyes when suspending an object; a first hook-and-loop fastener provided on an inner surface of each of the flexible loops, joining the inner surfaces facing each other to close the flexible loops; the first hook-and-loop fastener has a male structure and a female structure; A belt sling characterized in that the male structures and the female structures are alternately arranged on the inner surface of the flexible loop and in the direction of extension of the flexible loop.

2. a second hook-and-loop fastener is provided on an outer surface of any one of the flexible loops to join and hold the outer surface of another of the flexible loops; The second hook-and-loop fastener is having the male structure and the female structure, 2. The belt sling of claim 1, wherein the male structures and the female structures are alternately arranged on the outer surface of the flexible loop and in the direction of extension of the flexible loop.

3. 3. The belt sling according to claim 1, wherein the male structure and the female structure are arranged in a direction inclined with respect to the extension direction of the flexible loop.

4. 3. The belt sling according to claim 1, wherein the male and female structures are color-coded to distinguish them from each other.

Images