JP2773028B2 - Cane tip structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking stick used for various purposes such as elderly people, persons with physical disabilities, relatively easy climbing such as hiking, recreational activities, etc., and in particular, snowy roads and frozen roads. The present invention relates to a cane tip structure that can be used even when walking on a slippery road or the like.

[0002]

2. Description of the Related Art The tip structure of a conventional cane of this type is as follows.
A plurality of triangular spikes are provided at predetermined intervals along the circumferential direction so as to be located on the bottom surface of a rubber cap attached to a stone stick which is the tip of a cane. The arm is rotatably held by the arm.
The base of the drum is rotatably attached to a mounting bracket attached to the lower outer peripheral surface of the shaft of the cane.

[0003]

The structure of the tip of the above-mentioned conventional cane is very dangerous because the spike is always exposed to the outside, and is extremely dangerous. In order to mount the unit on the unit using bolts and nuts, a tool such as a screwdriver was required each time, and the mounting and removing operations were difficult. Further, since the spike located on the bottom surface of the rubber cap is only held by two arms, the holding and fixing on the bottom surface of the rubber cap is not sufficient, and the force in the rotating direction is not sufficient. When an excessive force is applied, the spike easily comes off the bottom surface of the rubber cap, and there is a problem that a sufficient spike effect cannot be obtained. In particular, when the spike is not used, the arm is pivoted with the base of the arm as a pivot point, so that the arm is positioned upward along the outer peripheral surface of the lower part of the cane, which further increases the danger. This is undesirable.

Further, when the spike is not used, the rubber cap attached to the ram directly hits a hard road surface such as a concrete, and accordingly, the metal at the tip of the ram within the rubber cap is used during use. Because the thick part of the pipe made of rubber directly hits the rubber material, the rubber is greatly damaged,
It is troublesome to repeatedly replace the rubber cap, and since the rubber once attached to the pipe is tightly fitted by rubber elasticity, it is very difficult to remove the rubber cap.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object the purpose of using a cane on a slippery road surface, etc., in which a covered pipe slidably mounted outside the lower pipe of the cane is slightly slid. The spikes need only be slid up and fixed.The spikes do not come off from the rams during use, the spike effect is reliably obtained in a stable state, and the spikes are exposed to the outside when the spikes are not used. It is an object of the present invention to provide a cane tip structure which is safe, does not come out, and can be easily switched.

Another object of the present invention is to provide a cane tip structure in which the thick end portion of the covering pipe does not directly contact the rubber material of the rubber cap, and thus the damage is small and the rubber cap can be used for a long time. Is to provide.

[0007]

According to the present invention, there is provided a wand tip structure comprising a lower pipe having corrosion resistance and rigidity, such as a stainless steel material, a reinforced plastic material, etc., to which a lower part of a wand of a wand is fitted. Is provided, a circumferentially shaped tip of the lower pipe is cut out to form a mountain-shaped spike, and a lower coated pipe that slides in the axial direction so as to expose or cover the spike is attached to the outside of the lower pipe, The lower and upper cover pipes are each provided with a boss which is supported by a spring material loaded in the lower cover pipe in the pit and bore formed in each of the lower cover pipes. The lower cover pipe is fitted or disengaged to engage or slide with the lower pipe.

In the tip structure of the cane according to the present invention, the weather-resistant rubber cap covering the lower tip of the lower covering pipe has a bottom formed to have an outer diameter of the lower pipe and a bottom. A non-slip groove is formed, and a washer is provided on the inner bottom surface of the rubber cap so as to come into contact with the thick portion at the lower end of the lower covering pipe.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the present invention, the tip structure of the foldable wand will be described. However, the present invention is not limited to this, and it is needless to say that the present invention can be applied to a non-foldable wand. The cane has an upper handle 1, a shaft 2 connected in a direction substantially perpendicular to the handle 1, and a lower pipe 3 having a corrosion resistance and rigidity having a structure in which a lower portion of the shaft 2 is divided and fitted.
And a lower covering pipe 4 slidably mounted outside the lower pipe 3.

The total length of the shaft 2 is divided into four equal parts.
Except for the lowermost portion, all three portions are formed of shaft pipes 2a, 2b, and 2c made of a lightweight material such as an aluminum alloy, and each connection portion has a detachable fitting structure. The division of the shaft portion 2 is not limited to four, and may be other divisions. The lowermost shaft portion 2 has a structure in which a lower pipe 3 having corrosion resistance and rigidity, such as a stainless steel material or a reinforced plastic material, is detachably fitted. In this example, a stainless steel material is used as a material of the lower pipe 3. The following shows the case.

Each of the connecting portions of the shaft pipes 2a, 2b, 2c and the lower pipe 3 has an enlarged portion 2d in which the bottom portion of the pipe is gradually widened. Is a converging portion 2e shape that gradually converges toward the tip. Further, each pipe has a folding structure, and after folding, a rubber string 5 is hung on a rubber string locking tool 2f provided at an upper portion in a shaft portion 2 orthogonal to the handle 1 so that the pipes do not fall apart. Is passed through each pipe, and the end of the rubber string 5 is fixed via a washer (not shown) which is locked by the converging portion 2e of the lower pipe 3 located at the lowermost position. Thus, each pipe can be folded at each connection portion without falling apart against the elastic force of the elastic cord 5.

The lower pipe 3 having corrosion resistance and rigidity into which the lower part of the shaft portion 2 of the cane is divided and fitted is cut off at the tip of its circumferential portion to form a mountain-shaped spike 6. By forming the mountain-shaped spikes 6 directly at the circumferential end of the lower pipe 3, the spike effect is firmly prevented without shaking the spikes 6 directly into a frozen road such as a snowy road. can get. The lower covering pipe 4 is formed of a lightweight material such as an aluminum alloy, and is formed to have a length shorter than an apparent length visible from the outside when the lower pipe 3 is fitted to the shaft pipe 2c. The length is such that it can slide back and forth along the axial direction. That is, the lower covering pipe 4 has a slide length in which the spike 6 is completely exposed by sliding the lower covering pipe 4, and the lower covering pipe 4 is connected to the lower pipe 3 and the lower covering pipe 4 in a state where the spike 6 is completely exposed. Of the lower covering pipe 4
Is in contact with the end face of the enlarged portion 2d of the connection portion.

Each of the lower pipe 3 and the lower covering pipe 4 is provided with front and rear holes 7 located at the front and rear on the same axis. One of the indentation holes 7 is a hole for fixing the lower covering pipe 4 at the position where the spike 6 appears, and the other is a state where the spike 6 is covered with the lower covering pipe 4. The lower cover pipe 4 is a hole for fixing the lower cover pipe 4 by the above-mentioned bocce 8. It is preferable that the recessed hole 7 is formed at the opposite side of each pipe in consideration of safety and the like. The boss 8 is biased by an elastic force, or is protruded into or retracted from the hole 7 by a spring material 9 loaded in the lower covering pipe 4 so as to be able to protrude or sink into the hole 7. Supported. The bottom 8 is the lower pipe 3
The lower cover pipe 4 engages or slides with the lower cover pipe 4 by fitting or disengaging the bottom hole 8 of the lower cover pipe 4.

The weather-resistant rubber cap 10 for covering the lower end of the lower covering pipe 4 has a perforated hole 10a for perforating the bottom to the size of the outer diameter of the lower pipe 3, and has a circular or other various shape on the bottom. A non-slip groove 10b having a shape is formed. A washer is provided on the inner bottom surface of the rubber cap 10 so as to be in contact with the thick portion at the lower end of the lower covering pipe 4.
11 is provided.

[0015]

As can be seen from the above description, the tip structure of the cane according to the present invention has the corrosion resistance and rigidity of a non-stainable material, a reinforced plastic material or the like into which the lower part of the shaft portion of the cane is divided and fitted. A lower covering pipe having a lower covering pipe which is notched at a circumferential end of the lower pipe to form a mountain-shaped spike and which slides in an axial direction so as to reveal or cover the spike is provided outside the lower pipe. The lower pipe and the lower covering pipe are each provided with a boch, which is supported by a spring material loaded in the lower covering pipe, in the lower and upper covering pipe. When the cane is used on a slippery road surface, etc., it is slidably attached to the outside of the lower pipe of the cane because the lower covering pipe engages or slides into and out of the indenting hole and engages or slides on the lower pipe. Were slightly coated pipes, it is only to be secured by sliding upward, spikes never like out of the ferrule during use. In addition, the spike effect is reliably obtained in a stable state, and when the spike is not used, the spike does not appear to the outside, it is safe, and the switching operation is easy.

In the tip structure of the cane according to the present invention, the structure of the weather-resistant rubber cap for covering the lower tip portion of the lower covering pipe is such that a bottom portion thereof is formed to have an outer diameter of the lower pipe. A non-slip groove is formed on the bottom surface, and a washer is provided on the inner bottom surface of the rubber cap to contact the thick portion of the lower end portion of the lower covering pipe. The rubber cap of the rubber cap is not directly in contact with the rubber material, so that damage is less and the rubber cap can be used for a long time.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a distal end structure of a cane showing an embodiment of the present invention.

FIG. 2A is a cross-sectional view showing a state in which a lower covering pipe slides to reveal a spike, and FIG. 2B is a cross-sectional view showing a state in which the lower covering pipe slides to cover a spike.

FIG. 3 is a cross-sectional view showing a state in which a weather-resistant rubber cap is attached to a lower covering pipe.

FIG. 4 is an explanatory diagram showing a relationship between a handle and an elastic cord.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle 2 Shaft part 2a, 2b, 2c Shaft part pipe 2d Enlarged part 2e Converging part 2f Rubber string locking device 3 Lower pipe 4 Lower covering pipe 5 Rubber string 6 Spike 7 Indentation hole 8 Botto 9 Spring material 10 Weatherproof rubber cap 10a Drilled hole 10b Non-slip groove 11 Washer

Claims (2)

(57) [Claims] 1. A lower pipe having corrosion resistance and rigidity, such as a stainless steel material or a reinforced plastic material, into which a lower portion of a shaft portion of a cane is divided and fitted, and a tip of a circumferential portion of the lower pipe is cut off. A lower cover pipe that forms a mountain-shaped spike and slides in the axial direction so as to expose or cover the spike is mounted on the outer side of the lower pipe, and a sink hole formed in each of the lower pipe and the lower cover pipe Attach a botch supported by a spring material loaded in the lower coating pipe to the lower hole of the lower pipe, and the bottom fits or disengages with the lower hole of the lower coating pipe, and the lower coating pipe engages the lower pipe. Or a tip structure of a cane characterized by a sliding structure. 2. A weather-resistant rubber cap for covering a lower end portion of the lower covering pipe, wherein a bottom portion thereof is formed to have an outer diameter of the lower pipe, a non-slip groove is formed on a bottom surface, and a rubber cap is provided. 2. The tip structure of a cane according to claim 1, wherein a washer is provided on the inner bottom surface of the lower covering pipe so as to contact a thick portion of a lower end portion of the lower covering pipe.