JP3082515U - Cushion belt - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the width of a shock absorbing belt, entanglement warps are concentrated, dissociation does not proceed and stops, and the impact load increases. SOLUTION: In order to promote dissociation near a dissociation end portion of a buffer portion, a rearranged cutting portion in which the entanglement of the entangled warp is reduced is provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present application relates to a shock absorbing belt used by being attached to a lanyard of a fall prevention safety belt used when working at a high place.

[0002]

[Prior art]

 Conventionally, as this kind, as in Japanese Patent Publication No. 63-15863, Japanese Patent Publication No. 2-60352 and Japanese Utility Model Publication No. 3-202 previously disclosed by the present applicant, when weaving a buffer belt, two While weaving the overlapping belts at the same time, the two belts are polymerized and woven using another entangled warp in the middle, so that the initial loosened part is provided at the first disengaged part even though the overlapped part is a buffer part. In some cases, the initial load value of the drop impact load was kept low. A cushioning belt using this structure is commercialized to have a belt width of 45 mm, and is used by being attached between a winding machine of a retractable safety belt for fall prevention and the safety belt.

[0003]

[Problems to be solved by the invention]

 The above-mentioned provision of the belt between the safety belt and the winding machine and fixing the belt to the safety belt does not cause any problem because the buffer belt has a width of 45 mm with respect to a belt width of 50 mm of the safety belt. However, installing a conventional shock absorbing belt on the lanyard and providing it with a small hook on the pole of the safety belt on the pole was not easy to use because of the bulkiness around the waist. Therefore, it is necessary to newly design a small and efficient shock absorbing belt that does not deteriorate the usability even when attached to a lanyard.

[0004] The new buffer belt was designed to have a width of 28 mm so that it would not be uncomfortable even when provided on a lanyard. However, because the belt width was narrower than that of the conventional product, the entangled warp was concentrated and cutting and dissociation occurred. Occasionally, the entangled warp was entangled and the dissociation stopped without cutting, and as shown in the oscillograph measurement waveform diagram of FIG. 7, the phenomenon that the load value increased at the last point occurred.

[0005]

[Means for Solving the Problems]

 Therefore, the present application provides a trimmed cut section in which the number of entangled warp threads is reduced at the buffer where the entangled warp concentrates and the entangled warp entangles at the time of cutting and disengagement, thereby facilitating disengagement and preventing entanglement. Is not raised.

[0006]

【Example】

 The embodiment of the present application will be described in detail. Two upper belts 1 and lower belts 2 woven in a plain or twill weave using synthetic fibers such as nylon and polyester are partially polymerized and woven by a plurality of entangled warps 3. A predetermined portion of a belt formed by forming a buffer portion 4 and separating and weaving the upper and lower belts 1 and 2 separately and weaving the buffer portion 4 alternately by a predetermined length, respectively, is cut, The number of entangled warp yarns 3 constituting the buffer part 4 of the buffer belt 6 having the separating part 5 and the buffer part 4 as a pair is divided into several stages by a predetermined length from the separating part 5 side of the buffer part 4. An initial loosening portion 7 which is increased step by step is provided, and thereafter, the buffer portion 4 is continuously formed by the same number of entangled warp yarns 3. With a predetermined length It is.

FIG. 2 shows a belt of the present application in which a separating section and a buffer section are alternately and continuously woven, and the upper belt and the lower belt have a width of 28 mm and a thickness of 1.4 mm.

FIG. 3 is a perspective view of the buffer belt 6 cut along the line AA in FIG. 2, in which a separating section 5 is disposed at the center and buffer sections 4 are disposed at both ends. At the separation section, an initial loosening section 7 is provided as in the conventional product, and a rearranging cutting section 8 is provided at a position before the end of dissociation of the buffer section 4.

FIG. 4 is a perspective view in which the bypass belt 9 is put on the buffer belt 6. By covering the entire structure, the buffer belt is prevented from being deteriorated by ultraviolet rays, and is prepared in case of a complete release of the buffer portion. When a hook is inserted into the separation section, the belt of the separation section is cut, covered with the bypass belt 9, and sewn from above.

FIG. 5 is a front view showing a state in which the buffer belt 6 is folded, and has a total length of 160 mm and a height of about 30 mm, and is covered with a transparent heat-shrinkable tube. The cross section of the folded part is a square of about 30 mm.

FIG. 6 shows that if an accidental drop occurs during use, the entangled warp of the buffer section is sequentially cut, and the cut of the entangled warp 3 absorbs an impact load to alleviate a fallen worker safely. Stop it.

FIG. 8 is a front view of a single-purpose lanyard in which a rope 10 is provided at one end of a buffer belt 6, a small hook 11 is provided at the other end, and a large hook 12 is provided at the tip of the rope. According to the method, the rope on the pole safety belt to be used together is wrapped around the utility pole to ascend and descend.However, if the rope cannot be lifted or removed without removing the rope from the utility pole by a signboard or streetlight arm during the ascent or descent. An auxiliary rope that is used while the large hook 12 is hung on a step bolt or the like while the signboard or the like is turned around and the rope is again turned around the utility pole. The auxiliary rope can be used in a compact rod shape without discomfort.

[0013]

[Effect of the invention]

 As described above, the provision of the trimmed cutting section in the buffer section of the buffer belt of the present application eliminates clogging and does not increase the impact load value, absorbs and reduces the drop impact load to a certain extent, and suppresses the impact on the human body. It can prevent the internal organs of the person and protect the human body safely. Further, since the present application is manufactured compactly with a belt width of 28 mm and a set length of 160 mm, it is easy to handle without being bulky even when attached to the waist or lanyard of an operator.

[Brief description of the drawings]

FIG. 1 is a perspective view of a shock absorbing belt of the present application.

FIG. 2 is a front view of a state in which the cushioning belt of the present invention is continuously woven.

FIG. 3 is a perspective view of an AA cut in FIG. 2;

FIG. 4 is a perspective view of a state in which a bypass belt is attached to the buffer belt of the present application.

FIG. 5 is a front view of the cushioning belt of the present invention in a folded state.

FIG. 6 is a front view of a disengaged state of the shock absorbing belt of the present application.

FIG. 7 is a measurement waveform diagram of an oscillograph before improvement.

FIG. 8 is a front view in which one shock absorbing belt of the present application is attached to a hanging lanyard.

[Explanation of symbols]

 Reference Signs List 1 upper belt 2 lower belt 3 twine warp 4 buffer part 5 separation part 6 buffer belt 7 initial loose part 8 rearrangement cutting part 9 bypass belt 10 lanyard 11 small hook 12 large hook

Claims (1)

[Utility model registration claims] 1. A buffer section in which two upper and lower belts woven using synthetic fibers are partially woven by a plurality of entangled warps, and a separation section in which upper and lower belts are separately woven, An initial loosening portion is provided, in which the number of woven warp yarns is gradually increased by a predetermined length from the separating portion side in the buffer portion,
After that, in the buffer belt which was a continuous buffer part,
A buffer belt having a structure in which a continuous cutting section is provided at a portion of the continuous buffer section before the end of dissociation by a predetermined length to reduce the number of woven warp threads.