JPH03200Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to safety belts and safety devices used by workers at heights to prevent falls, safety belts for vehicles such as automobiles and aircraft, and impact-absorbing belts used for parachutes.

Conventionally, in a buffer section 4 of this type as shown in Fig. 10, the end opposite to the separation section 3 is a free end that is simply a cut of the belt, so if a high impact load is applied during use, There was a risk that the buffer section 4 would be torn sequentially from the separation section 3 and the intertwined warp threads would be cut and reach the free end, causing both belts 1 and 2 to separate as a whole and fall. In order to prevent this, it is necessary to either fold it back and strongly sew it to connect it to the free end side of the buffer section 4, or to provide a separate bypass belt so that it is safe even if both belts 1 and 2 are pulled apart. There were deficiencies that needed to be addressed.

The object of the present invention is to eliminate and improve these drawbacks and provide a safe buffer belt.

Aspects of the present invention will now be described in detail with reference to an embodiment illustrated in the accompanying drawings.

As shown in the figure, this embodiment uses synthetic fibers such as nylon or polyester, and uses a weft 11, a plurality of warp threads 12, and a plurality of entwined warp threads 13 that are thinner than those threads woven between the warp threads 12 to create a plain weave or twill weave. A belt 1 is formed, and a plain weave or twill weave belt 2 is formed by a weft 21, a plurality of warps 22, and a plurality of entwined warps 23 that are thinner than those interwoven between the warps 22, and both belts 1. ,2
are arranged above and below in the thickness direction and woven separately at the same time to form a separated part 3 of a predetermined length, and during weaving, the intertwined warps 13 and 23 of each belt 1 and 2 are attached to the wefts 11 and 21 of the other party in a predetermined manner. Both belts 1 and 2 are knotted in a pattern of and overlapped to form a buffer section 4 of a predetermined length,
Further, the warp threads 12 and 22 of each belt 1 and 2 are knotted to the weft threads 11 and 21 of the other belt 1 and 2 to form a double weave 5, and the two belts 1 and 2 are separated. It has a structure in which a separating part 3, a buffer part 4, and a double weaving part 5 are successively constructed.

The cushioning belt of the present invention has a separation part 3 in which two plain weave or twill weave belts 1 and 2 are arranged one above the other and simultaneously woven, and the entangled warps 13 and 23 of each belt 1 and 2 are woven within the belt itself. Intertwined warp thread 1
3 and 23 intertwined with the weft of the partner belt and the weft of the self-belt in a predetermined weaving pattern, and the warp 12 and 2 of each belt 1 and 2.
2 and a double weave section 5 in which the entangled warp threads 13 and 23 are intertwined and woven with the weft threads of the partner belt and the weft threads of the own belt in a predetermined weaving structure, each of which is woven in a predetermined length alternately. to form a belt long body,
It is formed by cutting the boundary between the separation part 3 and the double weave part 5 of the long belt at the part indicated by the arrow A.

Also, Figure 3 shows the structure of the belt long body.
The separation part 3, the buffer part 4, the double weave part 5, the buffer part 4, and the separation part 3 are woven in this order, and in this case, the center arrow B of the separation part 3 and the center arrow C of the double weave part 5 are cut. and form it.

The weaving structure of the intertwined warp yarns 13 and 23 forming the buffer section 4 is a relative structure with other patterns such as 1 up 1 down, 1 up 3 down, etc. By shifting the phase, it will not be biased toward a specific weft yarn and knotted. Weave by distributing it evenly.

Also, the warp threads 12 and 22 forming the double weaving part 2
, a predetermined number of warps are sequentially changed and knotted, and the intertwined warp threads 13 and 12 in that part may be knotted as in the buffer section 4, or the own belt as in the separation section 3. You can also weave it inside.

In addition, the present invention has wefts 11 and 21, warps 12 and 2.
2 and the entwined warps 13 and 23 are woven using raw threads such as nylon or polyester of the same quality, or nylon yarn is used for the weft yarns 11 and 21 and polyester yarn is used for the entwined warps 13 and 23, or Warps 12, 22 and entangled warp 1
3 and 23, use yarn made of multiple types of materials.
In addition, the thickness of the intertwined warp threads 13 and 23 itself can be changed,
It is possible to use two or more different materials and elongations.

To use the buffer belt 6 of the present invention, the fifth
As shown in the figure, the belts 1 and 2 at the separating section 3
are divided into both parts, each is folded back and sewn to form annular parts 8 and 9, and a ring hook or rope is connected to both annular parts 8 and 9, and the buffer parts 4 and 2 are sewn together. The heavy woven portion 5 is enclosed and stored in a capsule (not shown) made of a heat-shrinkable tube or synthetic leather that is folded to an appropriate length.

In addition, when the buffer belt 6 is attached to a pole-mounted safety belt as shown in FIG. By providing a ring part 8, attaching a ring 14 to the annular part 8, folding the other belt 2 and sewing it, an annular part 9 is provided there, and a ring is attached to the annular part 9, or the ring 14 is attached to the rope. Attach the locking coupling device 15. One belt of the buffer belt 6 is attached to the outer tightening belt 16 of a pole-mounted safety belt in which the outer tightening belt 16 with the buckle 10 attached to one end is overlapped and inserted into the body support belt 20 with rings 18 and 19 attached to both ends. 1 or the ring 14 attached to it, and connect it to the outer tightening belt 16, and then attach the coupling device 15 attached to the other belt 2 to the outer tightening belt 16 using a magic fastener or the like. Temporarily fasten. Further, the buffer portion 4 and double weave portion 5 of the buffer belt 6 are held along with the outer tightening belt 16 by a band, a presser belt, or other means.

Further, as shown in FIG. 7, in order to connect the buffer belt 6 to the copper padding belt 20, one of the belts 1 in the separation section 3 is joined to a predetermined position of the body padding belt 20 by sewing or the like. By folding and sewing the other belt 2, an annular portion 9 is provided there, and a rope or a ring is attached to the annular portion 9, or a connecting device 15 for connecting and locking the rope is attached, and the connecting device 15 is attached. When installed, it is temporarily fastened to a predetermined portion of the outer tightening belt 16 using a magic fastener or the like. Further, the buffer section 4 is housed and held between the outer tightening belt 16 along with the copper padding belt 20.

Also, in the above explanation, the belts 1 and 2 of the separating section 3 of the buffer belt 6 are connected, and rings or other objects are attached to them.
There is no problem in attaching or combining 2 and 2 interchangeably.

The present invention is constructed as described above, and is used by attaching or connecting it to the body of the worker, but in the case of the one shown in FIG. 5, a rope is connected to one annular part 8, and the other A hook or other connecting member is attached to the annular part 9 of the rope, and the rope is connected to a structural object such as a steel tower, and the hook or the like is connected to a ring of a safety belt worn by a worker. If a limb slips and falls while using the cushioning belt, it is restrained by ropes, safety belts, etc., but the impact load at the time of restraint is applied to both annular parts 8 of the cushioning belt 6, 9 are suddenly pulled toward both sides, and as shown in FIGS. 8 and 9, the buffer section 4
The intertwined warp threads 13 and 23 that make up the workpiece are sequentially torn and cut from the separation section 3 side to absorb and alleviate the impact load, thereby safely restraining the worker and preventing him from falling.

According to the Ministry of Labor's standards for safety belts, 900
If an impact load of more than 900 kgf is applied to the human body, it can cause injury to internal organs and even death, so safety belts and other equipment must be designed to prevent impact loads of more than 900 kgf from being applied to the human body. When the buffer belt 6 of the present invention is used, it is possible to suppress an impact load of about 400 kgf or less.

Also, the tearing states of both belts 1 and 2 are different in Figures 8 and 9, but this is due to the difference in the magnitude of the impact load (energy), and the one in Figure 8 is able to withstand a fall while being cushioned. This shows the state in which the buffer section 4 remains when the block is blocked, and although this state is good from a safety standpoint, it is possible that an extremely high impact load (energy) may be applied at times, and in that case, the 9th As shown in the figure, the buffer section 4 is completely torn. However, since a double woven part 5 is subsequently provided at one end of the buffer part 4 and both belts 1 and 2 are woven together, this part is used to stop the belt from falling and prevent the worker from falling. If this was the case with the conventional product as shown in FIG. 10, there was a risk that both belts 1 and 2 would be completely separated as shown in FIG. 11, making it impossible to prevent the belts from falling. In order to prevent this, conventional products take measures such as providing another bypass belt, but this is not necessary in the present invention since the double weave portion 5 is provided.

In addition, when used by attaching it to a pole-mounted safety belt as shown in Figures 6 and 7, the coupling device 15 is coupled to a rope attached to a structural object such as a steel tower, so that no work can be done while in use. When a person falls and tries to catch himself, first the coupling device 15 temporarily fixed to the outer tightening belt 16 comes off. The rest are 8th and 9th
As shown in the figure, the intertwined warp threads 13 and 23 of the buffer section 4 are torn from one side, and while cushioning, the worker who falls is held back to ensure safety.

In the present invention, when two belts are weaved, both belts are knotted by entangled warp threads 13 and 23 to form a buffer section 4, and buffering is achieved by tearing and cutting the entangled warp threads 13 and 23. , unlike the conventional method of cutting the sewing thread sewn with a sewing machine,
The quality remains constant and a stable buffering effect can be obtained. In addition, since the present invention is provided with a double woven part 5 in which the warp threads of both belts are tied following one of the buffer parts 4, both belts 1 and 2 are protected against unexpected high impact loads.
It is safe and there is no danger of it separating. Furthermore, by providing this double woven part 5, unlike conventional products, there is no need to specially sew this part or provide a bypass belt, and the product can be formed compactly, and productivity is increased and the product can be provided at low cost. There are remarkable effects such as:

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing a part of the longitudinal weave structure of the belt of the present invention, Figures 2 and 3 are side views of the belt of the present invention, and Figure 4 is a perspective view of the B and C cut portions in Figure 3. , Fig. 5 is an explanatory diagram showing an example of use, Fig. 6 is an explanatory diagram showing the first embodiment in a finished state as a safety belt, Fig. 7 is an explanatory diagram showing the second embodiment, and Fig. 8.
FIG. 9 is an explanatory diagram of a place where a tensile impact load is applied, and FIGS. 10 and 11 are explanatory diagrams of a conventional product and a place where a tensile impact load is applied. Codes in the figure: 1 and 2 are belts, 3 is separation section, 4
is a buffer part, 5 is a double woven fabric, 6 is a buffer belt,
8 and 9 are annular parts, 10 is a buckle, 11 and 21 are weft threads, 12 and 22 are warp threads, 13 and 23 are entangled warp threads, 14, 18 and 19 are rings, 15 is a binding device, 16 is an outer tightening belt, 20 is a body support belt.

Claims (1)

[Claims for Utility Model Registration] (1) Two belts 1 and 2 made of synthetic fibers in which a plurality of thinner entwined warps are woven between the warps are woven at the same time, and during the weaving, each belt 1 , 2 are tied to the wefts 11, 21 of the other belts 1, 2, so that the two belts 1, 2 are partially polymerized and woven to form a buffer section. 4, and then the warps 12, 22 of each belt 1, 2 are knotted to the wefts 11, 21 of the other belt 1, 2 to form a double weave 5,
A buffer belt characterized in that a separation part 3, a buffer part 4, and a double weave part 5 in which two belts 1 and 2 are separated are successively constructed. (2) Double weaving section 5 has entangled warps 13 and 23 and warp 1
2. The shock absorbing belt according to claim 1 of the utility model registration claim, characterized in that it is constructed by being knotted by both of 2 and 22. (3) The buffer belt according to claim 1, wherein the double weave 5 is knotted by the warp threads 12 and 22. (4) Utility model registration claim Paragraph 1, characterized in that the separation part 3, the buffer part 4, and the double weaving part 5 are successively constructed by two belts 1 and 2.
The buffer belt according to item 2 or 3. (5) Utility model registration claim 1, characterized in that the separation section 3, the buffer section 4, the double weave section 5, and the buffer section 4 are successively constructed by two belts 1 and 2. - The buffer belt according to item 2 or 3.