JPH0529683U - Pickel - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a pickel that can quickly respond to the situation by fixing the head to the upper end and changing the length of the shaft formed by projecting a stone butt at the lower end. .. [Structure] The shaft 4 is composed of an expandable and contractible tube having an outer tube 5 and an inner tube 6. An engagement pin 10 biased by a spring 9 is provided in the upper end portion of the inner pipe 6. Outer tube 5
A plurality of through holes 8 through which the tips of the engaging pins 10 can project are provided along the longitudinal direction of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the improvement of ice ax, which is indispensable for mountaineering on ice and snow, and more particularly to the ice ax that allows the length of the shaft to be adjusted according to the situation.

[0002]

[Prior Art]

 A blade used for carving scaffolding on the snow and snow surface, and a head with a pick for piercing the snow and snow surface when sliding down are fixed to the upper end of the gripping shaft, and the lower end of the shaft has a stone foot The ice ax protruding from is a mountain climbing tool that is indispensable for winter mountain climbing. However, the conventional ice ax has undergone many improvements in the blade and pick, but the shaft that supports it has not been improved much and the length cannot be adjusted.

[0003]

[Problems to be solved by the device]

 As described above, the shaft portion of the conventional ice ax has a predetermined length in the longitudinal direction, and the length cannot be adjusted. For this reason, it was not possible to select the optimum shaft length that suits the conditions of the snow and snow surface and the climber's body shape, etc.

In view of the above, the present invention solves the above-mentioned disadvantages of the conventional ice ax, and the shaft portion is configured with an expandable and contractible tube having an outer tube and an inner tube to adjust the length. It is an object of the present invention to provide a ice ax that enables the outer tube and the inner tube to be fixed with one touch after adjusting the length.

[0005]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above-mentioned object will be described in detail. Pickaxe formed by projecting a stone butt on the lower end of a shaft which is a gripping part having a head having a pick and a blade fixed to the upper end. In the above, the shaft is composed of an expandable and contractible different-diameter pipe consisting of an outer pipe and an inner pipe, the head is fixed to the upper end of the outer pipe, and a stone butt is projected to the lower end of the inner pipe. In order to fix the outer and inner pipes after adjusting the length, a plurality of through holes are drilled along the length of the outer pipe, and the engagement pin is urged by a spring attached to the upper end of the inner pipe. Is projected outward from a small hole formed near the upper end of the inner pipe, and the engagement pin is projected into a through hole formed in the outer pipe for engagement. It is ice ax.

[0006]

【Example】

 Hereinafter, a specific structure of the ice ax according to the present invention will be described in detail with reference to the illustrated embodiment. 1 is a perspective view of an outer pipe and an inner pipe in a separated state showing an embodiment of the ice ax of the present invention, FIG. 2 is an enlarged cross-sectional view of a main portion showing a fixing structure of the outer pipe and an inner pipe, and FIG. It is a perspective view showing an example.

In the figure, 1 is a head having a pick 2 at one end and a blade 3 at the other end, and 4 is a shaft constituted by an expandable / contractible tube having an outer tube 5 and an inner tube 6. The head 1 is fixed to the upper end of the outer tube 5. Further, 7 is a stone stake protruding from the lower end of the inner pipe 6 which is a small diameter pipe. Although the outer pipe 5 and the inner pipe 6 are not particularly shown, both have an elliptical cross section so that the inner pipe 6 can be housed in the outer pipe 5. The cross-sectional shapes of the outer tube 5 and the inner tube 6 may, of course, be ordinary circular shapes other than the above-mentioned elliptical shape.

Next, 8 is a plurality of through holes formed along the longitudinal direction of the outer pipe 5, and in the illustrated embodiment, seven through holes are formed on the peripheral surface of the outer pipe 5 at equal intervals. Although eight holes are drilled, five or ten holes may be drilled. Reference numeral 9 is a spring formed by bending an elastic material such as a piano wire attached inside the upper end of the inner pipe 6, and 10 is an engaging pin urged by the spring 9. Reference numeral 11 denotes a small hole formed near the upper end of the inner pipe 6, and the engaging pin 10 is located in this small hole 11 and its tip portion penetrates the small hole 11 and projects outward. Has become. A flange 12 having a diameter larger than that of the small hole 11 is provided at the lower end of the engaging pin 10 so that the engagement pin 10 can be prevented from being detached from the small hole 11. ing.

The ice ax picker according to the present invention has the above-described structure, and the engaging pin 10 projecting outward from the small hole 11 formed near the upper end of the inner pipe 6 resists the elastic force of the spring 9. And push it downward with your finger, and insert it into the outer tube 5 from the lower end of the outer tube 5 which is open. Then, when the engaging pin 10 is inserted and attached to the through hole 8 at the lowest stage, the engagement pin 10 projects into the through hole 8 by the spring pressure of the spring 9. Since a plurality of through holes 8 are formed along the longitudinal direction of the outer pipe 5 as described above, when it is desired to shorten the shaft 4, the inner pipe 6 up to the uppermost through hole 8 can be used. Is pushed into the outer tube 5 so that the engaging pin 10 is projected into the uppermost through hole 8 in the same manner as described above. Further, if the engaging pin 10 protruding into the through hole 8 formed in the outer pipe 5 is pushed down with a finger, the engaged state is released, and the inner pipe 6 can be pulled out from the outer pipe 5, and the shaft 4 The outer tube 5 and the inner tube 6 are separated so that they can be made compact when carried.

[0010]

[Effect of the device]

 Therefore, according to the present invention, the shaft length can be appropriately changed according to the condition of the running surface and the body shape of the mountaineer, which is an epoch-making ice cream which is extremely easy to use. Also, when changing the length of the shaft, it is possible to do it with one touch by simply pushing the engagement pin with a finger, and it is possible to respond immediately to the situation. Furthermore, since the shaft is made of a hollow internal pipe, it is lighter than the conventional ice ax and has the advantage that it can be separated into an outer tube and an inner tube when carrying it, making them compact. It is a thing.

[Brief description of drawings]

FIG. 1 is a perspective view of an outer tube and an inner tube in a separated state showing an embodiment of the pickel according to the present invention.

FIG. 2 is an enlarged sectional view of an essential part showing a fixing structure of an outer pipe and an inner pipe.

FIG. 3 is a perspective view showing an embodiment of the ice ax of the present invention.

[Explanation of symbols]

 1: Head 2: Pick 3: Blade 4: Shaft 5: Outer Tube 6: Inner Tube 7: Stone Tip 8: Through Hole 9: Spring 10: Engagement Pin 11: Small Hole 12: Collar

Claims (1)

[Scope of utility model registration request] 1. A picket having a shaft that is a gripping portion to which a head having a pick and a blade is fixed at the upper end and a stalk is projected from the lower end of the shaft. In order to fix the head to the upper end of the outer pipe and to form a stone butt on the lower end of the inner pipe, and to fix the outer pipe and the inner pipe after adjusting the length , A small hole formed with a plurality of through holes along the longitudinal direction of the outer pipe, and an engagement pin urged by a spring provided in the upper end of the inner pipe, formed near the upper end of the inner pipe. The ice ax picked out further so that the engagement pin is projected into a through hole formed in the outer tube for engagement.