JPH0549272U - Safety tool for tool drop prevention - Google Patents

Abstract

(57) [Abstract] [Purpose] As a safety tool to connect the tool to a part of the worker's body, by combining the shock absorbing part and the string-shaped part, the shock of the fall is absorbed and the tool is quickly Try to calm down. Also, shorten the total length when fully extended,
Avoid crashing into the floor when working in low places. In addition, the shock absorbing part and the string-shaped part are detachably connected to make it convenient for changing tools and storing the string-shaped part. To do. A shock absorbing part (10) for absorbing a shock when the tool is dropped due to its elasticity and a string-like part (20) having low elasticity are provided between one end for engaging a tool and the other end for engaging a body. As a constitution having, when the tool is dropped, after the string-shaped portion 20 is fully extended, the shock absorbing portion 10 which is much shorter than the conventional one is extended so that the tool is not largely rebounded. Further, a detachable connecting portion by a separating hook 21 is provided between the shock absorbing portion 10 and the string-like portion 20.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tool fall prevention safety device for preventing the fall of tools and other tools when working on high places or on a stepladder.

[0002]

[Prior Art]

 Dropping tools or work tools such as video cameras for work at high altitudes in the past is often dangerous because it may damage people or objects underneath. To prevent this, tools are tied to a part of the worker's body with a string or rubber. Since it is difficult to work with such a safety device if the string is loosened more than necessary, a coil-shaped retractable device is often used these days. And since it constantly expands and contracts during use, it is resistant to expansion and contraction fatigue, has cold resistance so as not to lose elasticity even when exposed to low outside air, is resistant to ultraviolet rays, and is made of urethane rubber that is light and widely used. ing.

[0003]

[Problems to be solved by the device]

 Conventional tool drop prevention safety equipment is either a single cord or can be expanded or contracted in a coil shape over the entire length.Therefore, the cord-shaped one cannot absorb the impact when the tool is dropped. If the tool is dropped during work and the work position is relatively close to the floor surface, the coiled spiral will stretch and the tool will hit the floor surface, and if it is far from the floor surface. However, the recoil of the spiral causes the tool to bounce greatly and hit dangerous objects such as people and objects. It is especially dangerous when the tool itself is heavy (for example, when it exceeds 1 kg and reaches around 2 kg).

In order to reduce such a defect as much as possible, it is sufficient to reduce the drop distance when the tool is dropped, and as a method therefor, the core of the urethane rubber agent of the spiral cord is made of glass fiber having a diameter of about 1 mm or other materials. In some cases, a filamentous core material that does not expand or contract is enclosed. However, in this case, at the moment when the spiral of the cord is completely extended linearly, the dropping energy of the tools up to that point is simultaneously applied to the internal core material, so if the tool weight exceeds about 1 kg, the core material will break. There is a drawback that it ends up.

The object of the present invention is to eliminate such drawbacks, to sufficiently absorb the impact when the tool is dropped, and to prevent the dropped tool from bouncing back and injuring a person or an object. It is to provide a safety tool for tool fall prevention so that it will not hit the floor surface etc. when fully extended. Another object of the present invention is to provide a tool drop prevention safety device which is more convenient for the above purpose.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the tool fall prevention safety device of the present invention absorbs the impact when the tool falls due to its elasticity between one end that engages with the tool and the other end that engages with the body. The shock absorbing portion 10 and the string-like portion 20 having low elasticity are used. In order to achieve the above-mentioned object and to make it more convenient, the tool fall prevention safety device of the present invention has a structure in which the shock absorbing portion 10 and the string-like portion 20 are detachably coupled. ..

[0007]

【Example】

 Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the present invention. In FIG. 1, reference numeral 10 is a shock absorbing portion that absorbs a shock when the tool is dropped. Reference numeral 20 is a string-shaped portion having small elasticity. The shock absorbing portion 10 is formed in a coil shape using urethane rubber material, and rings 11 and 12 are attached to both ends thereof. The ring 11 is connected to a belt member 13 made of leather. The string-like portion 20 is made of a string knitted with synthetic fiber, and a separation hook 21 is attached to one end thereof. The separating hook 21 is usually used by being connected to the ring 12. The impact absorbing part 10, the string-shaped part 20 and other parts are also capable of withstanding a weight of about 2 kg in this embodiment.

Belt insertion holes 13a and 13b are formed in the belt connector 13, and if one wears a waist belt of clothes through the holes, one end of this embodiment is fixed to the worker's body. be able to. Since the string-like portion 20 is made sufficiently long, one end opposite to the separation hook 21 may be tied to a tool for preventing the drop, and the excess portion may be cut off. FIG. 2 shows a state in which the tool 1 and the waist belt 2 are connected by this embodiment.

By using this embodiment in this way, even if the tool is accidentally dropped during work in a high place, the string-shaped portion 20 first fully extends and then the shock absorbing portion 10 extends and falls. Absorbs the impact below. Moreover, compared to the recent safety devices of this type made of a spiral cord that is stretchable over its entire length, the impact absorbing portion 10 is much shorter in length, so that the spring action is small and the tool is relatively small. It quickly becomes stationary with one small vertical movement. Even when the work is relatively low, it is used in the required length in combination with the string-shaped part 20, so the total length when fully extended by impact is much shorter than that of conventional ones. You can avoid a collision with a surface.

Further, as shown in FIGS. 1 and 2, in the present embodiment, the shock absorbing portion 10 and the string-like portion 20 are joined by the separation hook 21, but since the detaching hook 21 can be attached and detached freely, It is easy to replace the tool with the belt connecting portion 13 attached to the body. Further, when working on the floor or the like, the separation hook 21 may be detached from the shock absorbing portion 10 and wound around the wrist as shown in FIG. Further, when the work is stopped, the separation hook 21 can be removed to store the cord-like portion 20 together with the tool 1, so that it is not necessary to attach and detach the cord-like portion 20. Since the shock absorbing portion 10 is not so bulky, the worker does not feel much trouble even if the shock absorbing portion 10 is worn on the waist when the tool is removed.

In the embodiment shown in FIGS. 1 and 2, the separation hook 21 is provided so that the shock absorbing portion 10 and the string-shaped portion 20 can be attached and detached. However, when it is not necessary, the shock absorbing portion 10 The string-shaped portion 20 may be directly connected to form a fixed connection. Further, the shapes and materials of the shock absorbing portion 10 and the string-shaped portion 20 are not limited to those described with reference to FIGS. 1 and 2, but all are included as long as they are in accordance with the gist of the present invention. Further, the structure and material of the parts such as the belt connecting portion 13 necessary for connection with the operator may be those other than those shown in FIGS. The same applies to the rings 11 and 12 and the separation hook 21.

[0012]

[Effect of the device]

 As described above, the present invention connects the operator's body and the tool by combining the elastic shock absorbing part and the non-elastic string-shaped part so that even if the tool is dropped from a high place, it will not fall. This has the effect that the energy will not cause the tool to bounce greatly and damage people and objects. In addition, since the length when it is fully extended is much shorter than that of the conventional one, it avoids crashing into the floor surface etc. when the tool is dropped when working in a relatively low place, and damage to the floor surface Alternatively, there is an effect of avoiding wear of the tool. Furthermore, in the embodiment of the present invention, when the shock absorbing part and the string-shaped part are detachable, various tools attached to the body can be easily replaced, and the string-shaped part can be easily stored together with the tool, which facilitates handling and management. effective.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a usage example of the embodiment of FIG.

FIG. 3 is an explanatory diagram showing another usage example of the embodiment of FIG.

[Explanation of symbols]

 1 Tool 2 Waist Belt 10 Shock Absorber 13 Belt Joint 20 String 21 Separation Hook

Claims (2)

[Scope of utility model registration request] 1. A safety tool for locking a tool intended to prevent falling to a part of a worker's body, the tool being stretchable between one end engaged with the tool and the other end engaged with the body. A tool drop prevention safety device having a shock absorbing portion that absorbs a shock when a tool is dropped and a string-shaped portion having small elasticity. 2. The tool fall prevention safety device according to claim 1, wherein the shock absorbing portion and the string-shaped portion are detachably coupled to each other.