JP2013005916A - Trunk belt type safety belt and falling/slipping prevention method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety belt which allows early stage braking of falling/slipping and secures workability.SOLUTION: The spot 5 grasped on a fixed rope 6 is connected to a safety rope 3 via a metal ring 4 provided with an open/close switchable parts. Work can be done at such a position that the metal ring 4 provided with the open/close switchable parts may be pulled tight to the grasped spot, thereby allowing early stage braking of falling/slipping, while the safety rope is pulled and deformed by the metal ring 4 provided with the open/close switchable parts, so that the safety rope does not obstruct the work.

Description

The present invention divides the tension applied to the lifeline 3 by 2 and allows the metal ring 4 with the openable and closable parts applied to the lifeline 3 to be moved, thereby enabling initial braking of falling and sliding, and The present invention relates to a belt belt safety belt that ensures safety.

In the conventional safety belt, the main purpose of the lifeline for crash, fall, and fall is to stop the fall. At work, the lifeline is in a relaxed state. If workability is sought, the lifeline asks for a slackened state, but the amount of slackening is likely to cause a fall distance and injury. The main point of the present invention is the initial braking of falling and sliding. To achieve this initial braking, lifeline tension is required, and workability must be maintained.

  In Patent Document 1, in the conventional belt-type safety belt shown in FIG. 6, the attachment position of the lanyard 7 is connected to two places on the left and right side surfaces of the body for safety. However, there are cases where the lanyard 4 gets in the way when the operator's posture is changed, so that the lanyard 4 is in a relaxed state as shown in FIG. In this situation, when the worker loses balance, initial braking of falling or sliding is difficult. As a device that allows the length of the lanyard to be adjusted, there is a device to replace the lanyard 7 with a belt as shown in Patent Document 1, but the mounting position is fixed, so when the work direction is changed, The length of the lanyard needs to be adjusted.

  In Patent Document 2, as shown in FIG. 5, there is a conventional method of stretching a rope in the vertical direction, but the tension between the gripping device moving on the rope and the safety belt is not obtained. Therefore, it cannot cope with the initial braking of “falling” and “sliding”.

  Patent Document 3 discloses an invention for adjusting the length of the lanyard 7 of the safety belt 1 and adjusting the direction thereof, in which the mounting position is on the back surface.

Japanese Patent Laid-Open No. 8-89592 JP-A-9-75471 JP 2010-75511 A

For the initial braking of falling or sliding, it is better that the lanyard 7 bound to the safety belt is not loose. If there is slack, the crash distance will increase and initial braking will not be possible. Therefore, a certain amount of tension is required.
In the conventional method of using the body belt type safety belt, the lanyard 7 is not required to be tensioned. This is because the length of the lanyard 7 cannot be adjusted easily and appropriately, and the mounting position is fixed to the left and right, and slack is necessary to change the working posture.

Attach one end of a lifeline to the left end of the waist belt type safety belt, and hold it on a fixed rope with a loop-shaped lifeline formed by attaching the other end of the lifeline to the right end of the body belt type safety belt The connected portion 5 is connected via a metal ring 4 with a part that can be opened and closed, so that the gripped portion 5 and the lifeline 3 are linked to each other, and the tension between the fixed rope upper portion and the safety belt Hold.

By connecting the point 5 held on the fixed rope 6 to the lifeline 3 shown in claim 1 by a metal ring 4 with a component that can be opened and closed, as shown in FIG. 2 or FIG. Since the work is performed at a position where the metal ring 4 having the openable / closable parts is pulled by the gripped portion, the work can be performed while always maintaining the tension, and the initial braking of the fall / slide can be dealt with.
As shown in FIG. 2 or 3, the lifeline 3 is deformed in a tensioned state, so that a work space is ensured when working sideways or downward. Also. Even if the standing position is changed, the metal wheel 4 with the openable and closable parts connected to the gripped portion 5 moves, so that the lifeline 3 does not disturb the work.

Overall view of claim 1 Position of the metal ring with the lifeline in the horizontal position and the parts that can be opened and closed The position of the metal ring with the lifeline in the backward-facing posture and the parts that can be opened and closed Overall view of Pluzic Overall view when working on the roof Conventional safety belt Conventional safety harness mounting position

It is a system that can respond to the initial braking of falling and sliding depending on the tension, and has the advantage that the lifeline does not hinder the work, so it is suitable for roof construction and slope work.

The plugic 5 shown in FIG. 4 is a rope technology that can be fixed and released on a fixed rope 6. This is a method of tying a ring-shaped rope and an object, which is tightened when a load is applied and can be slid when loosened.

The rope 6 fixed to the upper part of the roof is extended downward on an inclined surface such as a roof as shown in FIG. 6, and the pluzic 5 is attached on the rope 6. This is connected to the lifeline 3 of claim 1 by a metal ring 4 with a component that can be opened and closed.
As shown in FIG. 2 or FIG. 3, the length is adjusted so that the tension can be maintained by the pluge 5 on the rope 6. The lifeline 3 connected to the pluzic 5 is pulled by the pluzic 5, and the component 4 that can open and close the connecting portion moves in the upward direction of the inclined surface.
As shown in FIG. 2 or FIG. 3, the prosic 5 and the lifeline 3 maintain tension while being linked, so that it is easy to cope with initial braking of falling and sliding, and workability can be ensured.

1 Torso belt safety belt 2 D ring 3 Lifeline 4 Metal ring with parts that can be opened and closed 5 Plugec 6 Rope 7 Lanyard

Claims (2)

A torso belt type safety belt having a structure in which one end of the lifeline 3 is attached to the right waist portion of the torso belt type safety belt when worn and the other end portion is attached to the left waist portion of the torso belt type safety belt. The lifeline 3 of claim 1 moves in conjunction with the gripped portion 5 on the fixed rope, so that the tension between the fixed rope 6 and the lifeline 3 can always be maintained. A method to prevent falling and sliding by this tension.