JPH07172754A - Lifting band - Google Patents

Abstract

PURPOSE:To solve such a knotty point as being detrimental to operability at a narrow place that if an operator tries to hang up a lifting band from an elevated spot of a hook or the like of a lifter, an eye part becomes in a state of being hung down, and further at the time of passing through this band under a load as well as at the time of passing it through a hole of a pallet and so on. CONSTITUTION:This lifting band is made up of forming a reinforced covering layer 3 consisting of heat contractive resin or the like in an eye part 2, and also imparting stiffness to an interval between a lifting band body belt 1 and the eye part 2. Therefore any hanging to the eye part 2 from the lifting band body 1 is prevented from occurring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber suspension band which is generally used for lifting stones, steels and the like.

[0002]

2. Description of the Related Art As a suspending band, a strand type using an endless band and a so-called belt sling having eye portions at both ends of a main body belt are used. In the case of an endless band, the endless belt is formed by combining a strand-type tube cover and putting two of them into one tube, but in the case of a belt sling, another ring-shaped member is sewn on the body. There are a case where it is attached to the belt and a case where the end portion of the main body belt is folded back into an annular shape.

[0003]

All of these suspension bands have peculiar flexibility made of fiber. This is a good workability and an advantage in slinging work, but in most cases the eye part is unprocessed, and when trying to hang it on a high place such as a hook of a hoist, as shown in FIG. When the main body belt 1 is vertically supported, the eye portion does not face the hook 10 of the hoisting machine and the neck is sagging. In addition, workability in a narrow space, such as when passing under luggage or through a hole in a pallet, is poor.

[0004]

The present invention is characterized in that a reinforcing coating layer 3 is formed on an eye portion 2 of a suspension belt to provide rigidity between the suspension belt main belt 1 and the eye portion 2. It is a suspension band. As the suspension band, an endless strand type one or a belt sling having eye portions at both ends of the main body belt is used.

The reinforcing coating layer 3 is preferably made of a heat-shrinkable resin (for example, cross-linked polyethylene, cross-linked polypropylene, cross-linked ethylene propylene rubber, EPDM, etc.). In that case, the heat-shrinkable resin is provided so as to extend between the eye portion and the main belt. It is preferable to shrink-coat by externally inserting the tube and heating the surface. In addition to this, tape winding and heat shrinkable yarn such as polyester fiber can also be used as the reinforcing coating layer 3.

As another suspension belt, a strand-type suspension belt main belt 1 heat-shrinks the heat-shrinkable resin tube 3a, and a reinforcing coating layer 3, and a hollow weave cover 5 that covers the middle of the heat-shrinkable tube. 2 woven so as to form the eye portion 2, the reinforcing coating layer 3 is present in the eye portion 2 and the vicinity thereof, and is covered with the strand type suspension belt main body belt 1 excluding the eye portion 2 It is a suspension band in which the outside of the reinforcing coating layer 3 is covered with a tubular cloth cover 6. The tubular cloth cover referred to here includes not only a tubular woven cover but also a woven cloth sewn into a tubular shape.

Further, the eye cover of the strand type suspension belt main body belt 1 is present in the eye portion 2 and its vicinity, and the strand type suspension belt main body belt 1 excluding the eye portion 2 and the eye cover covered therewith. The outside is covered with a tubular cloth cover 6,
In addition, the sewn band is formed by forming the sewn portion 9 on the entire portion of the eye cover extended from the eye portion.

Further, a reinforcing coating layer 3 for imparting rigidity is provided between the strand type belt body 1 and the eye portion 2, and a tape-shaped woven fabric 7 which is an eye cover 8 is sewn to the eye portion 2 for suspending the belt. Is.

[0009]

In the suspending belt of the present invention, the reinforcing coating layer 3 extending between the eye portion and the main body belt prevents the eye portion from hanging down from the suspending belt main body belt 1. In particular, if the reinforcing coating layer is a heat-shrinkable resin tube, the tube can be shrunk and adhered by simply inserting the tube so that it extends between the eye part and the body belt and heating with an infrared heater, burner, etc. It can give rigidity.

In the case where the suspension belt main belt 1 is not only a belt-shaped one but also a strand type in which no fiber is woven, the reinforcing coating layer 3 similarly acts to reinforce the suspension belt main belt 1 to the eye portion. Prevent dripping. Especially in the case of strand type,
It is thinner than the belt-shaped one.

[0011]

1 is a front view of a belt sling, which is a suspension belt according to an embodiment of the present invention. In this example, the body belt 1 is 2
A belt sling in which book belts 1a and 1b are piled up, integral sewing portions are provided near both ends thereof, and hanging eye portions 2 are formed at both ends. It should be noted that the main body belt may be only one, or may be composed of three or more. In addition, in order to improve the durability of the belt, the entire surface including the safety belt 1c may be covered with a cover.

A reinforcing coating layer 3 is formed on the eye portion 2 of such a suspension band. In this example, a reinforcing coating layer 3 is provided between the suspension belt main body belt 1 and the eye portion 2 in order to impart rigidity. The reinforcing coating layer 3 is a heat-shrinkable cross-linked polyethylene resin (trade name: Nishitube NXL) and has a tube shape with an inner diameter that allows the main body belt 1 and the eye portion 2 to be easily inserted before heating, but is suitable for a dryer or the like. When heated by various means, the diameter is easily reduced, and as shown in FIG.
Intimately integrated with. As the heat-shrinkable resin, known ones such as ethylene propylene rubber and those using crosslinked polyethylene as a base material can be used.

FIG. 3 is a perspective view of the eye portion of the second embodiment. In this example, a tape is wound as the reinforcing coating layer 3 in order to impart rigidity between the suspension belt main body belt 1 and the eye portion 2. This tape may be heat-shrinkable or may be a commonly used tape such as vinyl chloride. It is wrapped so that the eye does not drip.

FIGS. 4 (a) to 4 (c) show a third embodiment of the present invention, showing a manufacturing process and a product of an endless strand type suspension band. In this example, first, as shown in (a), when the suspension belt main body belt 1 of the strand 4 is endlessly formed by bundling a large number of fibers with a gentle twist, the reinforcing coating layer 3 is formed. Two heat-shrinkable resin tubes 3a and two tubular hollow weave covers 5 are arranged at symmetrical positions, and fibers are passed through them to form a loop.

When the strand type suspension belt main body belt 1 is formed by winding the fibers in a loop shape, the heat-shrinkable resin tube 3a is externally heated by hot air as shown in FIG. It is Layer 3. Then, the hollow weave cover 5 is moved and covered in the middle of the tube after the heat shrinkage.

This is woven in two so as to form the eye portion 2 as shown in (c) so that the reinforcing coating layer 3 is present in the eye portion 2 and the vicinity thereof, and the strand excluding the eye portion 2 The outside of the mold suspension belt main belt 1 and the reinforcing coating layer 3 covered by the belt is covered with a tubular cloth cover 6.

5 (a) to 5 (c) show a process of manufacturing a strand type suspension belt according to a fourth embodiment of the present invention. In this example, fibers are wound in a loop shape to form a strand-type suspension belt main body belt 1, and first, a tape-shaped woven fabric 7 having an appropriate thickness to serve as an eye cover 8 is formed as shown in (a). Apply it much longer than the eye, and wrap it and sew it as shown in (b). The tape-shaped woven fabric 7 is woven in two so that the eye cover is present in the eye portion 2 and the vicinity thereof, and further, the strand type suspension belt main body belt 1 excluding the eye portion 2
And the outside of the eye cover covered with the same is covered with the tubular cloth cover 6. Further, the sewing portion 9 is formed on the entire portion of the eye cover extended from the eye portion.

FIG. 6 shows an example of a strand type suspension band according to the fifth embodiment of the present invention. In this example, the strand and the eye portion 2 are both short, and a heat-shrinkable resin tube is coated from the outside to give rigidity between the belt body 1 and the eye portion 2 of the strand, and the heat-shrinkable resin tube is subjected to heat shrinkage to provide a reinforcement coating Layer 3 is provided. The eye portion 2 is wound and sewn with a tape-shaped woven fabric 7 having an appropriate thickness which serves as an eye cover, but it may be covered with a hose-shaped cloth when forming the strands to serve as an eye cover.

[0019]

As described above, the suspension belt of the present invention is reinforced so that the main body belt 1 and the eye portion 2 are not bent, so that it can be easily hung on a suspension hook or the like during slinging work, and a pallet or the like. Since it can be easily passed through a narrow area, work efficiency is improved. It also contributes to the improvement of the durability of the suspension band.

[Brief description of drawings]

FIG. 1 is a front view of a belt sling, which is a suspension band according to an embodiment of the present invention.

FIG. 2 is a perspective view of an eye portion of the first embodiment.

FIG. 3 is a perspective view of an eye portion of the second embodiment.

4 (a) to 4 (c) are views showing a manufacturing process of an endless strand type suspension band according to a third embodiment of the present invention.

5 (a) to 5 (c) are views showing a manufacturing process of an endless strand type suspension belt according to a fourth embodiment of the present invention.

FIG. 6 is a front view of a strand type suspension belt according to a fifth embodiment of the present invention.

FIG. 7 is a perspective view of a conventional eye portion.

[Explanation of symbols]

 1 Suspension belt belt 2 Eye part 3 Reinforcement coating layer 3a Heat shrinkable tube 4 Strand 5 Duvet cover 6 Cylindrical cloth cover 7 Tape woven fabric 8 Eye cover 9 Sewing part

Claims (5)

[Claims] 1. A suspension band, wherein a reinforcing coating layer 3 is formed on an eye portion 2 of the suspension band to provide rigidity between the suspension belt main body belt 1 and the eye portion 2. 2. A suspension band in which the reinforcing coating layer 3 according to claim 1 is made of a heat-shrinkable resin. 3. A reinforcing coating layer 3 in which a strand-type suspension belt main body belt 1 heat-shrinks a heat-shrinkable resin tube 3a,
The woven cover 5 covering the middle of the heat-shrinked tube is woven into two so as to form the eye portion 2, and the reinforcing coating layer 3 is present in the eye portion 2 and its vicinity, and the eye portion 2 Other than the above, the suspension belt main body belt 1 of the strand type and the reinforcement coating layer 3 covered by the same are covered with a tubular cloth cover 6. 4. The eye cover of the strand type suspension belt main body belt 1 is present in the eye portion 2 and its vicinity, and the eye portion 2
Except for the strand type suspension belt main body belt 1 and the outside of the eye cover covered with the same are covered with a tubular cloth cover 6, and a sewing portion 9 is formed on the entire portion of the eye cover extended from the eye portion 2. Suspended belt. 5. A strand type belt body 1 and an eye portion 2
A suspension band formed by providing a reinforcing coating layer 3 for imparting rigidity between the eye portion 2 and a tape-shaped fabric 7 as an eye cover 8 sewn on the eye portion 2.