JPH0994112A - Device for extending/contracting prescribed length of stick in a single operation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a stick anywhere such as a flat place and stairs by fitting an article formed by inserting an inner cylinder in which a sliding cylinder having sliding elements projected on the side wall is mounted in the top end of a small-diameter tube in the cylinder of the medium cylinder which is formed by providing a sliding hole in the longitudinal direction of a wall face of a medium-diameter tube and notched holes in the top/bottom part of the tube, in the inside of an outer cylinder. SOLUTION: A sliding part 6 having a sliding element 7 projected on a side all is mounted on the top of a small-diameter tube of an inner cylinder 1, notched holes 10, 10' are provided in the top/bottom of the medium-diameter tube of an inner cylinder 2, and a sliding hole 11 is provided between the two notched holes 10, 10'. The left sides and the bottom sides of the respective notched holes 10, 10' are set as stop walls 12, 12' of the sliding element 7 and sliding element fixed seats 13, 13' respectively so that the right sides of the notched holes 10, 10' are brought in contact with the sliding hole 11. An article formed by storing the inner cylinder 1 in the cylinder of this inner cylinder 2 is fitted in the cylinder of the large-diameter outer cylinder. This constitution allows this device to be used freely in any place such as a flat place, a slope, stairs, and an escalator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cane expanding / contracting device which, when necessary, extends and fixes a predetermined length of a predetermined length with one touch, and can be returned to the original length with one touch after use. .

[0002]

2. Description of the Related Art Conventionally, there are the following canes having a device whose length can be adjusted. (A) Push button type utility model publication, No. 55-9686, 61-6651
4, No. 62-190513, No. 02-76909. In these products, a push button is provided on the lower cylinder, and the push button is inserted from below into the hole provided on the wall surface of the upper cylinder to fix the length of the cane. The length of the cane can be adjusted by selecting these holes and inserting the push buttons. (B) Screw-fastening type Patent Publication, No. 57-22709, 05-7505
No. 55/16611, 63-11
2810, 63-120916, 02-88516.
issue. In these, the cane can be divided into short pieces, and the cut surfaces can be combined with a male screw and a female screw to have a long or short length. (C) Clamping ring type utility model publication No. 04-6211. In this, when adjusting the length of the cane, the lower cylinder is pulled out, and the inner cylinder is clamped and fixed at an appropriate length by a clamp ring to determine the length of the cane.

[0003]

However, with these canes, the cane length is adjusted and fixed at the time of purchase according to the height of the user, and once the cane length is determined and fixed,
It is convenient for walking on flat places, but when getting off the stairs or escalators of department stores, public buildings, etc., if you support your body with a cane on the lower step, you will be in a state of forward bending and your body will be injured. Be stable and can be dangerous. Also, even when getting off the slope, the length of the cane used everyday makes the body unstable and makes it difficult to get off.

Therefore, according to the present invention, excluding the above-mentioned drawbacks, the length of the cane is extended by one touch by a dimension substantially equal to the kicking dimension of the stairs or the escalator so that the stairs, the escalator, and the slope can be descended in a stable posture. It is a device, its structure is simple and it is easy to manufacture.
The purpose is to provide a cane expandable device that can be used anywhere such as stairs and escalators at low cost.

[0005]

In order to achieve the above object, the present invention provides a wand in which an inner cylinder is slidably fitted in an outer cylinder having a grip handle attached to an upper end thereof. Sliding holes 11 are provided in the longitudinal direction of the wall surface, and cutout holes 10 and 1 are provided above and below the pipe.
In the inside of the middle cylinder 2 provided with 0 ', insert the inner cylinder 1 on which the slide cylinder 6 having the slider 7 protruding from the side wall is placed at the upper end of the small-diameter pipe, and insert this inside the outer cylinder 3. Fit in. This is a device configured to expand and contract with a single touch for a predetermined length of the cane configured as described above.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the above-mentioned structure, the slide cylinder 6 of the inner cylinder 1 freely slides in the middle cylinder 2 so that the inner cylinder 1 is vertically expanded and contracted. The slider 7 protruding from the slide cylinder 6 slides in the slide hole 11 as the slide cylinder 6 slides, so that the slide cylinder 6 is straightened.
It acts as a guide for sliding inside the cylinder. To extend the cane with this device, hold the outer cylinder 3 and lightly rotate the inner cylinder 1 to the right, and the slide cylinder 6 in the cutout hole 10 will rotate and the slider 7 will contact the wall surface of the slide hole 11. When the inner cylinder 1 is pulled down, the slider 7 slides in the sliding hole 11 and descends, and stops at the slider fixing seat 13 'in the lower cutout 10'. Inner cylinder 1 at the same time
Extends outward from the outer cylinder for a predetermined length in which the slider 7 descends in the outer cylinder 3. When the inner cylinder 1 is turned counterclockwise here, the cutout hole 1
The slide tube 6 stopped inside 0'rotates counterclockwise to the slide stop wall 1
The slide 7 hits 2'and stops and is fixed. Since the upper surface of the slider 7 is in contact with the slider movement stop 14 ', the inner cylinder 1 does not shrink short even if a cane is attached.

In order to shorten the stretched cane to the original length, the outer cylinder 3 is gripped again and the inner cylinder 1 is lightly turned to the right.
Since the slider 7 in 2'moves and contacts the slide hole 11,
At that time, when the inner cylinder 1 is pulled up, the slider 7 hits the slider movement stopper 14 of the upper cutout hole 10 and stops. Then, when it is lightly turned to the left, the slide tube 6 turns to the left, and the slide 7 stops at the slide stop wall 12 and is fixed.

[0008]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a cane to which the present invention is applied. The cane 17 is configured by slidably inserting the light alloy inner cylinder 1 into the light alloy outer cylinder 3 having the handle 10 attached to the upper end thereof. FIG. 2 is an enlarged perspective view of the slide cylinder 6 placed on the tip of the inner cylinder 1. The slide 7 is provided on the outer wall surface of the slide cylinder 6 to fix the lid 4 to the upper surface. The slide cylinder 6 is screwed onto the upper end of the inner cylinder 1. FIG. 3 is a bottom view of the slide cylinder 6, in which the slide cylinder 6 is inadvertently moved when it is inside the lower cutout hole 10 '.
Is a hole into which the ball 26 is inserted to prevent the length from becoming shorter. FIG. 4 shows the inner cylinder 2, which has cutout holes 10 and 1 in the upper and lower portions, respectively.
0'is provided. The cutout holes 10 and 10 'are for accommodating the slide cylinder 6, and the slide cylinder 6 is inside the cutout hole 10 when the inner cylinder 1 is shortened, and the cutout hole 1 is extended. Then, it is inside the notch hole 10 '. Therefore, the upper side of each cutout hole is the slide stop 14, 14 ', the left side is the slide stop wall 12, 12', and the lower side is the slide fixing seat 13, 13 '.
And The sliding hole 11 provided in the longitudinal direction on the cylindrical wall of the middle cylinder 2 has a slider 7 that slides up and down in the sliding hole 11 when the sliding cylinder 6 slides up and down in the cylinder. It is for inducing to slide up and down. A stopper lid 8 is provided on the upper part of the middle cylinder 2, and an annular seat plate 23 having a hole 24 through which the inner cylinder 2 penetrates is provided on the lower part. In the state of a cylinder, the middle cylinder 2 cannot be inserted into the cylinder because the slider 7 is protrudingly provided on the lateral wall of the slide cylinder 6. It is formed into a tubular shape. The middle cylinder 2 is made of plastic and is molded to be a little thick, but the material may be light alloy. FIG. 5 shows the middle cylinder 2 in a divided state. FIG. 6 shows the outer cylinder 3
And the cylinder 2 having the mounting hole 9 for the coupling shaft 19 at the upper end.
0 is fixed or screwed. In order to use it as a cane, the mounting shaft 19 of the handle 18 is inserted or screwed into the mounting hole 9, and the rear upper tightening ring 15 is attached.
Stop with. An inner cylinder insertion ring 16 is attached to the lower end of the outer cylinder 3.

[0009]

[Embodiment 2] As shown in FIG. 7, a hollow is provided to restrict the movement of the slide cylinder 6 by inserting the tip into a recess provided in the bottom of the slide cylinder 7. When this is attached, the slide cylinder 6 does not move normally, so that the slider 7 does not enter the slide hole 11, so that the inner cylinder 1 is not shortened. The apparatus of Example 1 was equipped with a hollow funnel to prevent the slide tube 6 from being inadvertently moved to further enhance the safety of the cane.

[0010]

[Third Embodiment] In addition to the apparatus of the first embodiment, a short cylinder 22 is mounted on the upper end of the slide cylinder 6 as shown in FIG. A magnet 23 on the lower surface of the lid 8 of the middle cylinder 2 opposite to this, and the notch 1
Attach the slider detent 14 of 0 in parallel. This is a slide tube 6
When retracted, the magnet 21 on the upper surface of the short cylinder 22 and the lid 8 of the middle cylinder 2
When the inner cylinder 1 is lightly turned to the left, the magnets 22 of the lid 8 and the magnets 21 on the upper surface of the short cylinder 22 are attracted to the lower surface of the magnet 22 by crossing.
Is adsorbed in a single letter, so that the slide cylinder 6 is fixed. In order to pull out the inner cylinder 1, a little force is applied to rotate the inner cylinder 1 to the right, and the magnets attracted in a single letter move to form a cross-shaped attraction, so that the inner cylinder 1 can be pulled out lightly.

[0011]

[Embodiment 4] The apparatus of Embodiment 1 is obtained by removing the slider 7 from which the slide cylinder 6 is projecting, and mounting only the slide cylinder 6 on the upper end of the inner cylinder 1. In this way, the diameter of the slide cylinder is reduced by the depth of the slider 7, and the inner diameter of the outer cylinder 3 may be substantially equal to the outer shape of the slide cylinder 6, so that the outer cylinder 3 is a middle pipe and is slim. Suitable for female canes. Since the slider 7 is not provided, the inner cylinder 1 slides up and down in the outer cylinder 3. In this embodiment, it is preferable to use a magnet as in the third embodiment and to attach the hollow 25.

[0012]

As described in detail above, the device of the present invention for expanding and contracting a predetermined length of the cane with one touch allows the cane to be moved to a predetermined length (about 18c) by simply moving the inner cylinder 1 up and down.
m) Can be expanded and contracted and fixed. Moreover, since the length adjusting device is not exposed on the surface, the cane is simple in design and excellent in appearance. It is also easy to manufacture, has a low cost, and is easy to assemble. Especially when you get off the stairs and escalators, you can extend the cane and keep your body stable and get off safely, but when you are on a flat place, you can shorten the cane with one touch and walk as a normal cane. It has excellent features that you can do. Although it is difficult for a healthy person to maintain physical stability when going down a slope, the cane of the present invention enables an elderly person or a sick person with a disability to get a stable body and easily get off. Since the structure is also strong, it has a feature that it can be used stably for a long period of time.

[Brief description of drawings]

FIG. 1 is an external perspective view of a cane.

FIG. 2 is a perspective view of the slide cylinder according to the first embodiment of the present invention.

FIG. 3 is a bottom view of the slide cylinder according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a middle cylinder according to the first embodiment of the present invention.

FIG. 5 is an exploded perspective view of a middle cylinder according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the outer cylinder according to the first embodiment of the present invention.

FIG. 7 is a perspective view of a hollow according to a second embodiment of the present invention.

FIG. 8 is a perspective view of a cylinder according to a third embodiment of the present invention.

FIG. 9 is a sectional view of a lid of a middle cylinder according to a third embodiment of the present invention.

FIG. 10 is a perspective view of a slide cylinder according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Inner Cylinder 2 Middle Cylinder 3 Outer Cylinder 4 Stop Plate 5 Sliding Cylinder Bottom 6 Sliding Cylinder 7 Slipper 8 Plug Lid 9 Mounting Hole 10 Notch Hole 10 'Notch Hole 11 Sliding Hole 12 Slipper Stop Wall 13 Slipper Fixing Seat 14 Sliding Child movement stop 14 'Sliding movement stop 15 Upper tightening ring 16 Inner cylinder insertion ring 17 Cane 18 Grip handle 19 Mounting shaft 20 Cylindrical 21 Magnet 22 Short cylinder 23 Annular seat plate 24 Through hole 25 Blank 26 Ball 27 Spring 28 Recessed hole

Claims (1)

[Claims] 1. A stick 6 having a slider 7 protruding from a side wall is mounted on the upper end of a small-diameter pipe in a cane formed by slidably inserting an inner cylinder into an outer cylinder having a grip handle attached to the upper end. The inner cylinder 1, and the cutout holes 10 and 10 'are provided in the upper and lower portions of the medium diameter pipe.
A slide hole 11 is provided between these two notches, and the left side of each notch is a stop wall 12, 12 'of the slider 7, and the lower side is a slide fixing seat 13, 13'. The right side of 'is in contact with the sliding hole 11, this cylinder is the inner cylinder 2, and the inner cylinder 1 with the inner cylinder 1 housed therein is fitted into the outer cylinder 3 of the large diameter pipe. A device that expands and contracts with a single touch for a specified length of a cane characterized by its structure.