JPS6019741Y2 - rock climbing nuts - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a nut which is a prop used for rock climbing, that is, a nut which is inserted into a crack in a rock to support a rope.

An example of a conventional nut of this type is shown in FIG.

In the figure, reference numeral 1 denotes a nut body made of a metal block formed into a shape such as a trapezoid or scalene hexagon (the one shown is a trapezoid), and a cavity 1a is formed in the center to reduce weight.

Further, two insertion holes 1b and lc are formed in the upper and lower surfaces of the nut body 1, respectively, and the rope 2 is inserted through these and tied at the lower end.

Next, an example of how to use this nut will be explained with reference to FIG.

This Natsutsu inserts the Natsutsu main body 1 into the crack G of the rock A, uses its shape to prevent it from falling downward, and inserts a carabiner or flyer rope into the rope 2 to prevent the climber from falling. It is intended to prevent

However, in this nut, the rope 2 hangs down from the nut body 1, so if the protrusion A□ of the rock A is at the lower position where the nut body 1 is fixed, the rope 2
It wore out due to friction with No. 1, and there was a problem with its strength in the unlikely event of an accident.

That is, when the climber's weight is applied to the rope 2 and the rope 2 sways, there is a risk that the rope 2 will be cut by the protrusion A1, resulting in a serious accident.

This invention was developed by focusing on the above points, and by forming the nut body with a rectangular metal plate and using a relatively elastic material, even if there is a protrusion on the rock, the metal plate To provide a rock climbing nut that does not break due to friction and does not break due to elasticity even when shaken.

Next, an embodiment of the present invention will be described with reference to FIG.

3 is a nut body made of a rectangular metal plate made of stainless steel or the like, and has a thickness of 2 to 5 rIr! It1 width 2~3a1 length 15~2 (kn).

A raised part 3a is formed above the nut main body 3 made of a metal plate by punching by pressing, etc., and a hole 3b for the rope 2 to pass through is formed at the lower end.

Note that this hole 3b has an eyelet 4 for protecting the rope 2.
is applied.

Next, an example of the use of nuts according to the present invention will be explained with reference to FIG.

When the nut main body 3 is inserted into the crack G of the rock A from above in the same way as in the past, the raised part 3a of the nut main body 3 is locked at the narrowest part of the crack and fixed so as not to come out.

A rope or a carabiner is inserted through the eyelet 4 of the nut body 3.

Here, when a load is applied to the nut body 3 and it shakes, the nut body 3, which is a metal plate, comes into contact with the protrusion A1 of the rock A, so that it will not be easily cut like a rope due to friction. Moreover, since the nut body 3 has elasticity, it will not break even under dynamic loads.

After use, the nut body 3 can be easily removed from the rock A by pushing the nut body 3 upward.

As described above, the present invention forms the nut body from a relatively elastic strip-shaped metal plate, and forms a raised part near one end that is the engagement part of the punched rock by pressing etc. In addition, by forming a hole at the other end and inserting a rope or carabiner through it, even if there is a protrusion on the rock where the body is fixed, the metal plate will not come into contact with it. It does not break due to friction with the protrusion, and since it is an elastic body, it does not break due to swinging of the rope, etc., so it can be used safely.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional nut; Fig. 2 is a front view showing an example of the use of the same; Fig. 3 is a perspective view showing an embodiment of the nut according to the present invention; It is a front view showing an example of use. 3...Natsutsu body, 3a...Protuberance,
3b...hole.

Claims (1)

[Scope of utility model registration request] A rock-climbing nut consisting of a relatively elastic strip-shaped metal plate with a protruding portion near one end and a hole for passing a rope or carabiner through the other end.