JP2008142251A - Walking aid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walking aid of which the length can be easily and safely adjusted while maintaining a walking posture, which is provided with excellent portability and storability with a simple structure, and is provided with excellent practicality and safety which allows safe walking for every state of walking surface. <P>SOLUTION: The walking aid comprises: a stick point part 10 of a stick point in contact with the ground when walking; a tube part 20 composed of a plurality of pipes which is supported by the stick point part 10 and maintains a shape of the walking aid; a grip part 30 which is suspended between the pipes in the tube part 20 and gripped by a walker when walking; a suspension reinforcement part 40 which is suspended between the pipes of the tube part 20 and reinforces strength of the walking aid; and a side support part 50 which is installed at an upper end of the tube part 20 to support a body of the walker when walking. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a walking aid, and more particularly, to a walking aid with improved practicality and safety that can be adjusted in length and can be used on various walking surfaces.

When one of the legs is injured due to a fracture or the like and normal walking is difficult, the walking is generally performed using a walking aid such as a crutch to reduce the burden on the affected leg.
This crutch usually has a pair of leg pieces, a leg part that is attached to the lower end part of these leg pieces and grounded in use, a gripping member that is attached between the leg pieces, and an upper end part as well. It is comprised with the member which is attached to a part and applies against a side in order to support a weight.
When walking with a crutch, the gripping member is gripped, and the lower end of the crutch is moved forward to support the body, and the motion of carrying the healthy foot forward is repeated.

  As described above, the crutch can be easily manufactured from its simple structure and is very simple to use, and thus is used by many patients.

Conventional crutches are usually prepared in two sizes, large and small. The patient selects one of these two types of crutches and then adjusts the length of the crutch as appropriate.
However, this conventional crutch has some disadvantages as described below. That is, when adjusting the length of the conventional crutch, it is necessary to remove the screw to freely expand and contract the crutch, to expand and contract to an appropriate length, and then to perform the complicated work of screwing again. .
Furthermore, since the crutch has a relatively large length, usually 1 m or more, it takes up space for carrying and transporting.

As a means for solving such problems of conventional crutches, a folding crutch disclosed in Patent Document 1 has been proposed.
In the crutch of patent document 1, the height position of the gripping member can be adjusted by twisting the gripping member according to the body length of the crutch user.
Furthermore, in the crutch of Patent Document 1, since the upper part of the cane and the lower part of the cane are connected by a hinge-shaped member, the portability and the storage property are improved by folding the crutch in two at the middle part of the cane. ing.
Registered Utility Model No. 3098689

However, the crutch of Patent Document 1 described above has the following three problems.
First, the first problem is that, as described above, the height position of the gripping member can be adjusted by twisting the gripping member, but the length of the cane is adjusted. When doing so, the complicated work of rotating the screw at the lower end of the crutch is still necessary. Therefore, it is difficult to adjust the walking posture, and there is a problem in terms of operability that it is necessary to sit down once and perform the adjustment work.
Further, according to the crutches of Patent Document 1, although a certain amount of height adjustment can be performed, there is a limit in adjusting the height sufficiently short when the adjustment is performed. For example, when going down the stairs, the tip of the cane is moved down one step. The patient's upper body is bent forward and there is a risk of falling.

  Next, the second problem is that the crutch of the above-mentioned Patent Document 1 certainly improves the portability and storage of the cane by folding the cane middle part in two, but the structure is Because it is extremely complex, it requires a great deal of labor to manufacture crutches.

  Furthermore, the third problem is that the crutches of the above-mentioned Patent Document 1 are always of the same kind whether the crutches are used indoors or outdoors, whether the weather is sunny or rainy. Since it is a tip of a cane, there is a risk that walking may be dangerous, for example, the tip of the cane slips.

  The present invention has been made in view of the above problems, the length can be adjusted easily and safely with a walking posture, and it has excellent portability and storage properties with a simple configuration, and further, can be used for any walking. An object of the present invention is to provide a walking aid having excellent practicality and safety capable of safe walking with respect to a surface state.

  In order to achieve the above object, the present invention provides a pair of pipe-shaped tubular portions, a cane tip portion that is continuously provided at the lower end of the tubular portion, and a grip portion for a grip that is installed in the walking direction at the center of the tubular portion. And a pair of pipes constituting the tubular portion are formed by sliding pipes having different diameters from each other, so as to assist the walking of a pedestrian who is difficult to walk. An erection reinforcement portion is provided at the center of the tubular portion with two grip-like members erected at predetermined intervals in the vertical direction on a pair of pipes. When the distance between the two grips is close, the restriction of expansion and contraction of the tubular part is released, and the expansion and contraction of the tubular part becomes possible.

  According to the present invention, among the pipes having different diameters constituting the tubular portion, the small-diameter pipe is provided with the lock button protruding outward in the radial direction, and the expansion and contraction of the pipe is restricted with the lock button protruding. One of the two grips of the installation reinforcing portion is in sliding contact with the outside of the small diameter pipe constituting the tubular portion at both ends in the installation direction, and the sliding contact portion is a pipe having an inner wall with a small diameter. The pipe-shaped member is in contact with the lock button, and the pipe-shaped member is formed so that the inner diameter is gradually narrowed from one end to the other end of the upper and lower ends, and one grip is moved in either the upper or lower direction. When sliding on a pair of pipes, the abutment part of the lock button moves to the narrow part and the lock button is embedded, so that pipes having different diameters can slide between each other. To do.

  In addition, the present invention has a pair of pipe-shaped tubular portions, a cane tip portion provided continuously with the lower end of the tubular portion, and a grip portion for grips constructed in the walking direction at the center of the tubular portion, It is a walking stick-shaped walking aid that assists walking of pedestrians who are difficult to walk, and the tip portion of the walking stick includes a folding rotating unit that rotates around an axis in the erection direction, and the folding rotating unit. The pivot axis is located at a position deviated from the cane axis of the cane-like walking aid and in a direction substantially perpendicular to the cane axis, and the whole can be folded in two by turning the folding pivot part. It is comprised by these.

  Further, according to the present invention, the tip of the wand includes a rotation fixing portion that screws the folding rotation portion and restricts the rotation by the folding rotation portion, and the rotation fixing portion includes a screw. When the screw is unscrewed, the restriction of the rotation is released.

  Further, according to the present invention, the upper end of the folding rotation portion is provided with a screw hole protruding upward, and the rotation fixing portion includes a fixing screw screwed into the screw hole from above, and at the time of screwing. The fixed part body that covers the protruding screw hole is configured, and the restriction of rotation is released by unscrewing the fixed screw from the screw hole and pulling the fixed part body upward together with the fixed screw. Features.

  Further, according to the present invention, the upper end of the folding rotation portion is provided with a screw hole protruding upward, and the rotation fixing portion includes a fixing screw screwed into the screw hole from above, and at the time of screwing. A fixed portion body that covers the protruding screw hole, and a notch is formed in a part of the lower end of the fixed portion main body. By pulling up, the protruding screw hole can be removed from the notch, and the restriction of rotation is released.

  In addition, the present invention has a pair of pipe-shaped tubular portions, a cane tip portion provided continuously with the lower end of the tubular portion, and a grip portion for grips constructed in the walking direction at the center of the tubular portion, It is a walking stick-shaped walking aid for assisting walking of a pedestrian who is difficult to walk, and a foot portion which is a tip portion of the walking tip portion is configured to be detachable.

  Further, according to the present invention, the foot portion is characterized by having a shaft having a spherical lower end and a foot portion that rotatably supports the shaft downward.

  Further, according to the present invention, the grip portion includes a pipe-shaped frame that slides outside the pair of pipes, a grip that is installed on the frame, and is installed below the installation site of the grip in the frame. An auxiliary grip having a pin hole and a fixing pin to be inserted into the pin hole. The pair of pipes are provided with pin holes along the axis at predetermined intervals, and the grip portion slides on the outside of the pair of pipes. Move, overlap the pin hole on the pair of pipes and the pin hole of the auxiliary grip, and insert the fixing pin so as to penetrate the overlapped pin holes, and adjust the height position of the grip part It is characterized by.

  Further, according to the present invention, the top end of the tubular portion is provided with a side support portion serving as a base for placing the side of the pedestrian, and both front and rear ends of the side support portion are directed upward. It is formed.

  The walking aid in the present invention has two grip-like members that are installed on a pair of pipes at a predetermined interval in the vertical direction, and the walking aid is simply made close to the distance between the two grips. Therefore, the length can be adjusted easily and safely with the walking posture.

<First Embodiment>
(Outline of the first embodiment)
The walking aid in the first embodiment of the present invention includes a mechanism for folding during storage, a mechanism for expanding and contracting the length according to the height of the pedestrian, a mechanism for adjusting the height of the grip portion, and a walking surface A mechanism for exchanging the cane according to the state and a mechanism for firmly supplementing the walking surface are provided, and a comfortable and safe walking is realized.
Hereinafter, each structure mentioned above with the structure of this walking aid is demonstrated in detail using figures.
In the following description, unless otherwise specified, “up” (direction) indicates a vertically upward direction with respect to the walking surface (ground), and “down” (direction) indicates a vertically downward direction.

(Configuration of the first embodiment)
FIG. 1 is an external view showing the configuration of a walking aid in the first embodiment of the present invention, where (a) is an overall front view, (b) is an overall side view, and (c) is an erection reinforcing portion 40. (D) is a top view of the side support part 50. FIG.
As shown in the figure, the walking aid in the present embodiment has a cane tip 10 at the tip of the cane that contacts the ground during walking, and a plurality of pipe-like members that are supported by the cane tip 10 and hold the shape of the walking aid. A tubular part 20 and a grip part 30 which is constructed between the pipes of the tubular part 20 and is used by a pedestrian to hold the walking aid during walking and similarly walked between the pipes of the tubular part 20 and A construction reinforcing portion 40 for reinforcing the strength and a side support portion 50 that is installed at the upper end of the tubular portion 20 and supports the pedestrian's body during walking are configured.

Here, the configuration of each of the constituent parts 10 to 50 will be described in more detail.
The cane portion 10 includes a folding rotation unit 11 that rotates when the walking aid is folded, a rotation fixing unit 12 that fixes the rotation by the folding rotation unit 11, and its folding time. A pipe-shaped foot pipe base portion 13 fixed to the lower end of the moving portion 11, a foot pipe tip portion 14 that is elastically joined to the lower end of the foot pipe base portion 13 and contacts the walking surface during walking, and the foot pipe tip A foot part 15 that is detachably joined to the part 14 and contacts the walking surface in place of the foot pipe tip part 14 is configured.
The cane tip 10 is a part that contacts the walking surface during walking, and the cane tip can be rotated and folded when the walking aid is stored.

The tubular portion 20 is a pipe-shaped member having two pipe-shaped base tubes 21 standing on the upper end of the folding rotating portion 11 and a smaller diameter pipe-shaped member having the same cross-sectional shape of the base tube 21 and the pipe bottom surface. And a slide tube 22 in which a part of the lower end is housed on the inner wall of the base tube 21.
By sliding the inner wall of the base tube 21 at the lower end side of the slide tube 22, the entire tubular portion 20 can be configured to expand and contract.

The grip portion 30 is a pipe-shaped member having the same cross-sectional shape as the above-described base tube 21 and the pipe bottom surface and having a slightly larger diameter, and a pipe frame 31 whose inner wall slides on the outer wall of each base tube 21 described above, A grip 32 for gripping that is constructed between the two pipe frames 31, an auxiliary grip 33 that is constructed between the two pipe frames 31 at a position below the grip 32, and the auxiliary grip The adjustment pin 34 is configured to pass through the erection direction 33 and hold the grip portion 30 at a predetermined position of the base tube 21.
A pedestrian walks by gripping the grip 32 or the auxiliary grip 33 of the grip portion 30.

The erection reinforcing portion 40 is laid between the two base tubes 21 to reinforce the strength of the walking aid and between the two base tubes 21 in the same manner below the upper erection portion 41. And a lower erection part 42 that reinforces the strength of the walking aid.
Further, as shown in FIG. 1 (c), the erection reinforcing portion 40 is configured such that, when viewed from above, the central portion in the erection direction is narrower than the sliding portion with the base tube 21. Yes. Further, as shown in the drawing, a smooth curve is formed from the sliding portion with respect to the base tube 21 to the central portion.
FIG. 2 is a diagram illustrating a usage example of the walking aid in the first embodiment of the present invention. As shown in the figure, the pedestrian uses the walking aid with the torso and arms sandwiched during walking, and at this time, the inner side of the torso and arms contacts the erection reinforcing portion 40.
As described above, the reinforced portion 40 is rounded at the center and narrow, so that it fits in the shape of the torso and arms, and the torso and arms are painful even when walking for a long time. It is possible to prevent.
Further, as will be described in detail later, the above-mentioned upper erection part 41 and lower erection part 42 are gripped together and the lower erection part 42 is pulled up to the position of the upper erection part 41, so that the slide tube 22 can slide. The lock can be released and the walking aid can be freely expanded and contracted.

The side support part 50 is a member for the purpose of holding the pedestrian's body in the walking aid during walking or walking pause. In the present embodiment, the side support portion 50 is further provided with a base having a certain cushioning property, and the side of the pedestrian is placed at the time of walking or walking pause to reduce the pedestrian's fatigue. It is possible.
Further, as shown in FIG. 1D, when viewed from above, the central portion in the erection direction is configured to be narrower than the end portion in the same manner as the above-described reinforced portion 40. . Further, as shown in the figure, a smooth curve is formed from the end to the center.
Since it is configured as described above, it is possible to fit to the side of the flank and the base of the arm, and to prevent pain on the torso and the side even when walking for a long time.
Further, as shown in the figure, since both ends of the side support portion 50 in the erection direction are directed upward, the walking aid sandwiched between the torso and the arm at the time of walking is detached back and forth in the walking direction. It is possible to prevent this.

(Folding mechanism for walking aids)
As described above, the walking aid in the present embodiment is configured to be foldable into two in the fold rotation part 11, and is folded and stored in two so as not to take up space when not in use.
Hereinafter, the folding mechanism of this walking aid will be described in detail.

  3A and 3B are front views for explaining the folding mechanism of the walking aid in the first embodiment of the present invention, in which FIG. 3A is a sectional view of the rotation fixing portion 12, and FIG. (C) is a figure at the time of folding operation | movement.

  As shown in FIG. 3A, the rotation fixing portion 12 includes a fixing portion main body 121 laid between the two base tubes 21, and the foot pipe base 13 around the fixing portion main body 121. And a fixing screw 122 that is rotatably provided.

As shown to (a) of FIG. 3, the hole 123 penetrated up and down is provided in the center part of this fixing | fixed part main body 121. As shown in FIG.
Further, a screw hole 124 is provided at the upper end of the foot pipe base 13 so as to protrude upward and cut vertically.

At the time of walking, as shown in FIG. 3 (b), the upper end (screw hole 124) of the protruding foot pipe base portion 13 is accommodated in the hole 123 provided in the above-described fixing portion main body 121.
Then, when the fixing screw 122 is screwed into the screw hole 124 at the upper end of the foot pipe base 13 accommodated from above, the folding rotation part 11 is fixed to the rotation fixing part 12 and rotated. The movement is restrained so that the walking aid does not fold when walking.

  On the other hand, when folding the walking aid, as shown in FIG. 3 (c), when the fixing screw 122 is rotated and loosened around the foot pipe base portion 13 and is screwed off from the foot pipe base portion 13, the rotation fixing portion 12 is It is released from the folding rotation part 11, and the whole rotation fixing part 12 can be pulled upward.

FIG. 4 is a view for explaining the folding mechanism of the walking aid in the first embodiment of the present invention, wherein (a) is a side view showing the turning operation of the folding turning unit 11 during folding. (B) is a side view of the walking aid after folding, (c) is a front view of the walking aid after folding.
As shown in the figure, the folding rotation part 11 includes a rotation base 111 fixed to the lower end of the base tube 21, a rotation base 112 fixed to the upper end of the foot pipe base 13, A rotation pin 113 is attached to the rotation base 111 so that the rotation base 112 can be rotated in a hinge shape.

The rotation base 111 is formed in a U-shaped cross section when viewed from above or below, and is configured such that the rotation base 112 is housed inside the U-shape when walking.
Then, by rotating the rotation base 112 around the rotation pin 113 passing through the rotation bases 111 and 112 in a hinge shape, the walking aid is folded in two at the rotation pin 113.

  As described above, when the rotation fixing part 12 is pulled up above the folding rotation part 11, the folding rotation part 11 is rotated as shown in FIG. It can be folded in two.

As shown in FIG. 1B, the folding rotation axis is located at a position deviated from the axis of the walking aid walking stick by a predetermined length in the pedestrian direction during walking or in the opposite direction. Since the rotation pin 113 is provided, as shown in FIG. 4 (b), when the walking aid is folded, both ends of the folded walking aid are arranged in parallel so as not to be bulky when stored. It is possible to make it.

FIG. 5 is a view showing a conventional walking aid given as a comparative example of the folding, in which (a) is a front view and (b) is a side view.
The conventional walking aid shown in this figure is configured to be foldable in the same manner as the walking aid in this embodiment, but a rotation axis is provided on the axis of the walking aid's cane. Therefore, when folded, one of the folded parts hits the other, and even at the time of folding, both ends thereof are not completely closed, and the storage property is difficult.
On the other hand, as described above, the walking aid in the present embodiment has folded ends that are parallel to each other. Therefore, the folding aid is significantly improved in comparison with the conventional walking aid.

(Extended mechanism of walking aid)
Next, the expansion / contraction mechanism of the walking aid in this Embodiment is demonstrated.
Since the walking aid in the present embodiment is configured to be instantly extendable and retractable, the length of the walking aid can be adjusted when used jointly by users with different heights or when ascending or descending stairs. It can be adjusted easily and the pedestrian can walk comfortably.

FIGS. 6A and 6B are diagrams showing a state before and after expansion / contraction by the expansion / contraction mechanism of the walking aid according to the first embodiment of the present invention, wherein FIG. 6A shows an extended state and FIG. 6B shows a shortened state.
When walking, the lock described later is applied so that the telescopic mechanism of the walking aid does not operate. By releasing the lock of the expansion / contraction mechanism, the expansion / contraction as shown in FIGS. 6A and 6B can be performed freely.

  FIG. 7 is a transparent side view of the walking aid in the first embodiment of the present invention, where (a) shows when the lock mechanism of the telescopic mechanism is locked, and (b) shows when the lock is released. Yes.

As shown in FIG. 7A, a lock button 221 for locking the slide in the base tube 21 by the slide tube 22 is provided at the lower end of the slide tube 22.
Normally, the lock button 221 protrudes from the side surface of the slide tube 22 from the side surface of the slide tube 22 by a built-in spring or the like, and when the force is applied and pressed from the outside direction, the spring or the like contracts to enter the side surface. Embed. Further, when released from the pressed force, the lock button 221 protrudes again by the restoring force of the spring or the like.

As shown in FIG. 7A, a slide hole 421 in which the slide tube 22 can slide is formed in the lower installation portion 42 of the installation reinforcement portion 40. The upper end of the sliding hole 421 is open, and the lower end is connected to the upper end of the inner wall of the base tube 21.
Further, as shown in FIG. 7A, the sliding hole 421 gradually decreases in width in the protruding direction of the lock button 221 from the upper opening surface to the lower connecting surface. It is configured. Due to the difference in the width of the holes, the protruding lock button 221 is locked in the middle of the sliding hole 421, and the sliding of the slide tube 22 is suppressed.

When releasing the above-described locking mechanism, the upper erection part 41 and the lower erection part 42 are grasped together, and the lower erection part 42 is moved in the direction of the arrow shown in FIG. It slides on the outer wall and pulls upward until it comes into contact with the upper erection part 41.
Then, the protruding lock button 221 slides relatively from the upper end side to the lower end side of the sliding hole 421. At this time, since the width of the sliding hole 421 is gradually narrowed, a force from the radially outward direction of the slide tube 22 is applied to the lock button 221 as it slides in the lower end direction. As a result, the lock button 221 slides. It embeds in the pipe | tube 22, and will be in the state as shown in FIG.7 (b).
When the lock button 221 is completely embedded as shown in FIG. 7B, the locking effect by the lock button 221 is lost, and the slide tube 22 can be slid into the base tube 21. Becomes telescopic.
After adjusting the length of the walking aid as appropriate, the lock button 221 protrudes again by the restoring force of the spring or the like by sliding the lower laying portion 42 downward again, and the locking effect is restored and adjusted. Fixed in length.

Further, the following can be considered as modifications of the expansion and contraction mechanism described above.
FIGS. 8A and 8B are diagrams showing a state before and after expansion / contraction according to a modified example of the expansion / contraction mechanism of the walking aid according to the first embodiment of the present invention, where FIG.
As shown in the drawing, the position of the grip part 300 does not change before and after the expansion / contraction mechanism, but in this modified example, the position of the grip part 300 moves up and down with expansion and contraction.
Since the grip part 300 in this modification is fixed to the slide tube 22, the grip part 300 moves downward as the slide tube 22 slides downward.
In this modification, the slide tube 22 has a larger diameter than the base tube 21, but the slide tube 22 has a smaller diameter than the base tube 21 as in the above-described embodiment. Needless to say, it may be configured.

  Next, the effect of the length adjustment by the extension / contraction mechanism of this walking aid will be described in comparison with a conventional walking aid.

FIG. 9 is a diagram showing the state of walking when going down the stairs using a conventional walking aid, wherein (a) is a diagram when standing on the stairs, and (b) is the following It is a figure when taking one step to the stage.
As shown in the figure, when going down one step from the state of (a), the walking aid is long, so it bends forward as shown in (b), and the pedestrian becomes unstable in weight movement and walks. Accompanied by fear.

FIG. 10 is a diagram showing a state of walking when going down the stairs using the walking aid in the first embodiment of the present invention, (a) is a diagram when standing on the stairs, (B) is a figure when stepping to the next lower stage.
As shown in the figure, in the state of (a), after shortening the length of the walking aid by the above-mentioned expansion and contraction mechanism, when the foot on the healthy leg is stepped down to the lower stage as shown in (b), It is possible to go down the stairs with confidence by stable weight transfer.
And when it gets off the stairs, it walks again by extending the length of the walking aid.
Thus, since the walking aid in this embodiment can adjust the length easily compared with the conventional one, it is possible to walk on comfortable conditions regardless of stairs and flat ground. Become.

In addition, the expansion-contraction mechanism of a walking aid is not limited to the example demonstrated above.
For example, in the present embodiment, the upper slide tube 22 has a small diameter and the lower base tube 21 has a large diameter, but may be pipe-shaped members having different diameters, and the upper slide tube 22 has a large diameter. The lower base tube 21 may be configured to have a small diameter.
Further, in this embodiment, the upper wall of the lower erection part 42 is configured to be wide and the lower part is configured to be narrow, but conversely, the upper part is configured to be wide and the lower part is configured to be narrow. The lock may be released by pulling downward.
Further, in the present embodiment, the lower erection part 42 is slid up and down on the base tube 21 to lock the expansion and contraction, and the lock is released. May be provided in the upper erection part 41.

(Height adjustment mechanism of the grip part 30)
Next, the height adjustment mechanism of the grip part 30 will be described.
The grip part 30 is configured to be slidable on the base tube 21, and the grip part 30 can be adjusted to an optimum position for a pedestrian.
FIG. 11 is a transparent front view of the grip part 30 in the first embodiment of the present invention.
As shown in the drawing, a position adjusting hole 332 is formed in the auxiliary grip 33 of the grip portion 30 in the installation direction.
The two base tubes 21 are provided with a plurality of pin holes at predetermined intervals along the tube direction for allowing the adjustment pins 34 to pass therethrough. The position of the pin hole and the position of the hole 332 of the auxiliary grip 33 described above are overlapped, and the adjustment pin 34 is inserted so as to penetrate through both, thereby fixing the grip portion 30 at an arbitrary position adjusted in height. Can be done.

  Therefore, as shown in the figure, the slide tube 22 that has been lowered in the base tube 21 by the above-described telescopic mechanism in both pipe frames 31 is not hindered from being lowered by the adjustment pin 34 at the position of the grip 32. The auxiliary grip 33 can be lowered to the height position, and the degree of freedom of the expansion / contraction range of the walking aid increases.

(Extension mechanism of cane tip 10)
FIG. 12 is an exploded view of the cane tip portion 10 according to the first embodiment of the present invention.
As shown in the figure, the foot pipe tip portion 14 is configured to be detachable from the foot pipe base portion 13 by a lock button method, and the foot portion 15 is also detachable from the foot pipe tip portion 14 by the lock button method. It is configured.

In other words, a lock button 141 is provided at the upper end of the foot pipe tip portion 14, and this lock button 141 normally protrudes from the side surface of the foot pipe tip portion 14 in the radially outward direction by a built-in spring or the like. When a force is applied from the outside in the radial direction and pressed down, the spring and the like contract to be embedded in the side surface. Further, when released from the pressed force, the lock button 141 protrudes again by the restoring force of the spring or the like.
On the other hand, as shown in the figure, the foot pipe base 13 is provided with a plurality of lock button holes 131 along the pipe axis.
While pushing and embedding the lock button 141 of the foot pipe tip portion 14, the foot pipe tip portion 14 is inserted into the foot pipe base portion 13 and slid to a predetermined position, and the lock button 141 is inserted into one of the lock button holes 131. The length of the cane tip 10 can be adjusted by projecting from the tip.

(Exchanging mechanism of foot 15)
The bottom surface of the foot 15 at the tip of the cane is provided with unevenness and spikes made of resin such as rubber and urethane or steel to prevent slipping, and various walking surfaces caused by weather, temperature, etc. Various things are prepared according to the state, and can be freely attached or detached.
Hereinafter, the exchange mechanism of the foot 15 will be described.

FIGS. 13A and 13B are diagrams showing the configuration of the foot 15 in the first embodiment of the present invention, where FIG. 13A shows before attachment to the foot pipe tip 14 and FIG. 13B shows after attachment.
As shown in the figure, the foot portion 15 has a pipe-shaped foot base portion 151, a lock button 152 protruding from the foot base portion 151 in the radially outward direction of the pipe, and a spherical tip at a tip fixed to the lower end of the foot base portion 151. A pivot shaft 153 that is a shaft, a foot portion 154 that pivotally supports a spherical portion of the pivot shaft 153 on the upper side and a bottom surface that contacts the walking surface, and a foot base portion 151 and a foot portion 154 that are inserted between And an elastic member 155 having an elastic force.

Like the lock button 141 described above, the lock button 152 normally protrudes from the side surface of the foot base 151 from the side surface of the foot base 151 by a built-in spring or the like. The spring etc. contracts and is embedded in the pipe. Further, when released from the pressed force, the lock button 152 protrudes again by the restoring force of the spring or the like.
On the other hand, the foot pipe tip 14 is provided with a lock button hole 142 as shown in the figure.
While the lock button 152 is pushed in and embedded, the foot base 151 is inserted into the foot pipe tip 14 and the lock button 152 is protruded from the lock button hole 142, whereby the foot 15 is inserted into the foot pipe tip 14. It can be attached to.

In addition to the mounting method of the foot 15 by the lock button method, there is a pin insertion method mounting method as a modified example.
FIGS. 14A and 14B are diagrams showing a method of attaching the foot 15 by the pin insertion method according to the first embodiment of the present invention, where FIG. 14A is before attachment to the foot pipe tip 14 and FIG. 14B is attachment. 4C shows a state before the insertion pin 156 is inserted, and FIG. 5D shows a state after the insertion pin 156 is inserted.
As shown in the figure, the foot 15 when using this pin insertion method does not include the lock button 152 as compared with the above-described lock button method foot 15, and instead of the lock button 152, An insertion hole 157 for inserting the insertion pin 156 is provided in the foot base 151.
At the time of attachment, the foot base portion 151 is inserted into the foot pipe tip portion 14, and the positions of the insertion hole 157 and the insertion hole 143 of the foot pipe tip portion 14 are overlapped to penetrate both holes 143 and 157. Thus, the foot 15 can be attached to the foot pipe tip 14 by inserting the aforementioned insertion pin 156.

  The shape of the insertion pin 156 is not limited as long as it can penetrate the insertion holes 143 and 157. However, as shown in FIGS. A pin 156a to be inserted and members 156b and 156c for holding the pipe of the foot pipe tip portion 14 on both sides of the pin 156a may be configured.

When the walking aid is used indoors, the foot 15 may be removed and the bottom surface of the foot pipe tip 14 may be directly grounded to the walking surface for walking.
In this way, for example, when the user goes home from the outside, the foot 15 used at the outside is removed, and in the room, the foot pipe tip 14 is walked so as to be in direct contact with the walking surface. It is possible to prevent the adhering mud and the like from being brought into the room, and it is not necessary to perform a complicated work such as washing the foot portion 15 each time the user returns from the place where he / she goes out.
In addition, by making the height of the above-mentioned sole part 154 substantially the same as the height of the shoe sole of the pedestrian, it is possible to walk comfortably when taking off the shoes and using the walking aid in the room.

Further, as described above, the foot 15 can be appropriately replaced according to the conditions of the walking surface such as the weather.
FIG. 15 is a perspective view showing the appearance of the foot 15 in the first embodiment of the present invention, where (a) is for a general road, (b) is for a snowy road, and (c) is for an ice burn. The foot 15 is shown.
As shown in Fig. 15 (b), when rain or snow falls, when walking on slippery roads, members such as non-slip rubber or urethane are provided on the bottom side, or unevenness is The pedestrian can walk safely by exchanging the emphasized foot portion 15 for a snowy road.
Further, as shown in FIG. 15C, when walking on a more slippery walking surface such as an ice burner, a member made of steel or the like having a sharp tip is attached to the foot 15 for ice burner provided on the bottom surface. By exchanging, the pedestrian can walk safely while breaking the ice on the walking surface.
Note that the foot 15 shown in this figure is merely an example, and various shapes are conceivable depending on the application.

(Capture mechanism for walking surface)
Further, the foot 15 is provided with a mechanism for keeping its bottom surface parallel to the walking surface (capturing mechanism for the walking surface), and realizes stable walking.
Hereinafter, the capturing mechanism for the walking surface will be described.

As described above, the pivot shaft 153 has a tip formed in a spherical shape having a radius larger than the diameter of the shaft.
On the other hand, the sole 154 that pivotally supports the rotation shaft 153 is slightly larger than the spherical tip of the rotation shaft 153 and penetrates into a spherical shape, and the upper part is slightly larger than the diameter of the rotation shaft 153. It has a large opening.
In addition, since the spherical tip of the rotation shaft 153 is supported so as to be able to rotate at the perforated portion of the sole 154, the walking aid can be tilted while the entire bottom surface of the sole 154 is in contact with the walking surface. it can. That is, during walking, even when the walking aid is not perpendicular to the walking surface, the entire bottom surface of the sole 154 always captures the walking surface, so that stable walking is possible.

FIG. 16: is a figure which shows the mode of the earthing | grounding of the cane bottom face and walking surface of the walking assistance tool in the 1st Embodiment of this invention, Comprising: (a) is a walking assistance tool toward a walking surface. When tilted to the left, (b) shows a vertical position, and (c) shows a tilted right side.
Since the spherical tip of the rotation shaft 153 is pivotally supported by a pivotal support part that is substantially spherically penetrated by the sole 154, as shown in the figure, what kind of walking aid does the walking surface have? Even if it is inclined in the angle and direction, the walking surface can be firmly captured.
In addition, since the upper surface side of the sole 154 opens smaller than the spherical tip of the rotation shaft 153, the rotation shaft 153 is prevented from being detached from the sole 154.

Further, as described above, the elastic member 155 is inserted between the rotation shaft 153 and the sole 154. Although any elastic body can be used as the elastic member 155, for example, a coil spring or rubber may be used. These coil springs and rubber are wound around the shaft portion of the rotating shaft 153.
With this configuration, when no force is applied to the walking aid, the foot pipe tip 14 can be returned to a position substantially perpendicular to the foot 15 by the elastic force of the elastic member 155.

(Summary of the first embodiment)
As described above, the walking aid in the present embodiment realizes comfortable and safe walking, and specifically has the following effects.

For example, the walking aid in the present embodiment allows the slide tube 22 to slide when the construction reinforcing portion 40 is grasped and unlocked, so that the stretching of the walking aid can be freely adjusted with an easy operation. It becomes possible.
From this, when walking on flat ground and stairs, the walking aid can be easily adjusted to the optimal length according to the walking surface with the walking posture maintained, so it is possible to prevent a fall on the stairs in advance. It becomes possible.

Further, the walking aid in the present embodiment is easy to use the walking aid because the lower end side can be pivoted from the folding pivoting portion 11 when the fixing screw 122 is loosened and the pivotal fixing portion 12 is pulled upward. It can be folded into two by operation, and can be stored without taking up space when not in use.
Moreover, since the rotation axis of this folding rotation part 11 is in a position deviated from the axis of the walking aid tool cane to the front side or the back side by a predetermined length, when the walking aid tool is folded in two, Since both the tips do not open and are arranged in parallel, a high storage property can be realized.

  In addition, when the adjustment pin 34 is pulled out, the grip portion 30 in the present embodiment can freely slide on the base tube 21, and by inserting the adjustment pin 34 into the pin hole 211 of the base tube 21 again, any grip can be obtained. The grip portion 30 can be fixed at the position, and the position of the grip portion 30 can be easily adjusted to a height preferable for a pedestrian.

  Further, according to the present embodiment, the grip portion 30 is configured so as to hang the grip 32 on the upper side and the auxiliary grip 33 on the lower side of the base tube 21, and the adjustment pin 34 described above is laid on the lower side thereof. The slide tube 22 that has been slid downward in the base tube 21 for expansion and contraction of the walking aid is not hindered by the height of the grip 32 because the auxiliary grip 33 is inserted from the side surface side. It becomes possible to do so.

  Moreover, the walking aid in this embodiment can be freely slid within the foot pipe base 13 when the foot pipe tip portion 14 is embedded by pressing the lock button 141, and is provided at an arbitrary position. By causing the lock button 141 to protrude from the lock button hole 131 of the foot pipe base portion 13 that is provided, the walking aid can be adjusted to extend and contract with a simple operation.

  Moreover, according to this embodiment, since the foot part 15 can be removed or replaced by a lock button method or a pin insertion method, the pedestrian is optimal depending on the state of the walking surface due to weather, temperature, etc. The leg portion 15 can be selected and the user can walk comfortably.

  In addition, since the foot 15 in the present embodiment has a spherical pivot shaft 153 supported by the sole 154, even if the walking aid is tilted with respect to the walking surface, the tip of the walking aid cane Since the entire bottom surface captures the walking surface, it is possible to prevent troubles such as falling down by sliding the tip of the cane on the walking surface.

  Further, since an elastic member 155 having a certain level of elastic force is inserted into the movable part of the foot portion 15, when the pedestrian is not putting weight on the walking aid, It automatically returns so that the wand axis is perpendicular to the bottom surface of the wand tip.

  Moreover, since the walking aid in this embodiment is formed with both ends of the side support part 50 facing upward, it becomes possible to prevent the side of the pedestrian from leaving the walking aid during walking. .

<Second Embodiment>
(Outline of the second embodiment)
As described above, the walking aid in the first embodiment is configured such that the folding turning unit 11 can be turned and the walking aid can be folded in two. When this folding is performed, the entire rotation fixing unit 12 is pulled upward, the lock is released, and the folding rotation unit 11 is allowed to rotate.
On the other hand, the walking aid in the present embodiment unlocks the rotation of the folding rotation unit by pulling upward only the fixing screw portion of the rotation fixing unit 12 and is in a foldable state. To do.
Hereinafter, unless otherwise specified, the configuration and operation of this embodiment will be described as being the same as those of the first embodiment.

(Configuration of Second Embodiment)
FIG. 17: is a figure which shows the folding rotation part 11 and the rotation fixing | fixed part 120 of the walking aid in the 2nd Embodiment of this invention, Comprising: (a) is a front view at the time of rotation fixation, (b) ) Is a front view at the time of rotation, (c) is a side view at the time of rotation fixing, (d) is a side view at the time of rotation, and (e) is a side view during rotation.

As shown in the figure, the rotation fixing part 120 in the present embodiment is different from the first embodiment in the shape of the fixing part 125.
In other words, in the present embodiment, a notch 126 not provided in the first embodiment is provided in a part of the lower end on the front side of the fixed portion main body 125.
When the fixing screw 122 is unscrewed from the upper end of the foot pipe base portion 13, the fixing of the rotation fixing portion 12 is released and the foot pipe base portion 13 protruding upward is released along with the rotation of the folding rotation portion 11. The upper end portion escapes from the notch 126, and the walking aid is folded in two as in the first embodiment.

(Summary of the second embodiment)
As described above, in the present embodiment, the upper end portion of the foot pipe base portion 13 is configured to escape from the notch 126 when the folding rotation portion 11 is rotated. Instead of pulling up the entire rotation fixing part 12 after removal, the folding rotation part 11 can be rotated only by pulling up only the screwed fixing screw 122, and the walking aid can be folded with a smaller force. Is possible.

<Summary of overall embodiment>
As described above, according to the first or second embodiment of the present invention, the telescopic mechanism is unlocked by a simple operation such as grasping the installation reinforcing portion 40, and the walking assistance is easily performed while maintaining the walking posture. The length of the tool can be adjusted.
Thereby, the pedestrian can walk safely by changing the length of the walking aid easily even when going down the stairs.

Further, according to the first or second embodiment of the present invention, when the fixing screw 122 is loosened and the rotation fixing unit 12 is pulled upward, the lower end side can be rotated from the folding rotation unit 11. The walking aid can be folded into two by an easy operation, and can be stored without taking up space when not in use.
Moreover, since the rotation axis of this folding rotation part 11 is in a position deviated from the axis of the walking aid tool cane to the front side or the back side by a predetermined length, when the walking aid tool is folded in two, Since both the tips do not open and are arranged in parallel, a high storage property can be realized.

  Further, according to the first or second embodiment of the present invention, the foot 15 can be removed or replaced by the lock button method or the pin insertion method, so that the pedestrian depends on the weather, temperature, etc. The optimal foot 15 can be selected according to the state of the walking surface, and it becomes possible to walk comfortably.

  In addition, the walking aid in the above-described embodiment includes the above-described walking assist tool expansion / contraction mechanism, folding mechanism, grip portion 30 height adjustment mechanism, cane tip 10 expansion / contraction mechanism, foot 15 replacement mechanism, walking surface. One or a combination of each mechanism such as a capturing mechanism with respect to can be selectively provided as appropriate.

  The above-described embodiment is an example of a preferred embodiment of the present invention. The embodiment of the present invention is not limited to this embodiment, and various modifications may be made without departing from the scope of the present invention. Is possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view which shows the structure of the walking aid in the 1st Embodiment of this invention, Comprising: (a) is a whole front view, (b) is a whole side view, (c) is a top view of a construction reinforcement part. d) is a top view of the side support portion. It is a figure which shows the usage example of the walking aid in the 1st Embodiment of this invention. It is a front view for demonstrating the folding mechanism of the walking aid in the 1st Embodiment of this invention, (a) is sectional drawing of this rotation fixing | fixed part, (b) is a figure at the time of walking, (c) ) Is a diagram during the folding operation. It is a figure for demonstrating the folding mechanism of the walking aid in the 1st Embodiment of this invention, Comprising: (a) is a side view which shows rotation operation of the folding rotation part at the time of folding, (b) is The side view of the walking aid after folding, (c) is a front view of the walking aid after folding. It is a figure which shows the conventional walking aid given as a comparative example of folding, Comprising: (a) is the front view, (b) is a side view. It is a figure which shows the state before and behind the expansion-contraction by the expansion-contraction mechanism of the walking assistance tool in the 1st Embodiment of this invention, Comprising: (a) shows at the time of expansion | extension, (b) shows at the time of shortening. It is the permeation | transmission side view of the walking aid in the 1st Embodiment of this invention, (a) has shown the time of locking of the locking mechanism of an expansion-contraction mechanism, (b) has shown the time of unlocking. It is a figure which shows the state before and behind expansion / contraction by the modification of the expansion / contraction mechanism of the walking aid in the 1st Embodiment of this invention, Comprising: (a) is at the time of expansion | extension, (b) shows at the time of shortening. It is a figure which shows the mode of walking when going down the stairs using the conventional walking aid, (a) is a figure when standing on the stairs, (b) is one step to the next lower stage It is a figure when stepping on. It is a figure which shows the mode of a walk when going down the stairs using the walking aid in the 1st Embodiment of this invention, (a) is a figure when standing on the stairs, (b) It is a figure when taking the next step down. It is a permeation | transmission front view of the grip part in the 1st Embodiment of this invention. It is an exploded view of the cane part in the 1st embodiment of the present invention. It is a figure which shows the structure of the leg part in the 1st Embodiment of this invention, Comprising: (a) is before attachment to a foot pipe tip part, (b) has shown after attachment. It is a figure which shows the attachment method of the foot part by the pin insertion method in the 1st Embodiment of this invention, Comprising: (a) is before attachment to a foot pipe tip part, (b) is after attachment, (c) is Before insertion of the insertion pin, (d) shows after insertion of the insertion pin. It is a perspective view which shows the external appearance of the foot part in the 1st Embodiment of this invention, (a) is for general roads, (b) is for snowy roads, (c) shows each foot part for ice-burning. Yes. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the mode of the earthing | grounding of the cane bottom face and walking surface of the walking assistance tool in the 1st Embodiment of this invention, Comprising: (a) The walking assistance tool inclines to the left side toward the walking surface. When (b) is vertical, (c) shows when it is tilted to the right. It is a figure which shows the folding rotation part and rotation fixing | fixed part of the walking aid in the 2nd Embodiment of this invention, Comprising: (a) is a front view at the time of rotation fixation, (b) is at the time of rotation possible. (C) is a side view when the rotation is fixed, (d) is a side view when the rotation is possible, and (e) is a side view during the rotation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cane part 11 Folding rotation part 12 Rotation fixing part 13 Foot pipe base part 14 Foot pipe tip part 15 Foot part 20 Tubular part 21 Base pipe 22 Slide pipe 30 Grip part 31 Pipe frame 32 Grip 33 Auxiliary grip 34 Adjustment pin DESCRIPTION OF SYMBOLS 40 Construction reinforcement part 41 Upper construction part 42 Lower construction part 50 Side support part 111,112 Rotation base part 113 Rotation pin 120 Rotation fixing part 121 Fixing part main body 122 Fixing screw 123,332 hole 124 Screw hole 125 Fixing part main body 126 Notch 131, 142 Lock button hole 141, 152, 221 Lock button 143, 157 Insertion hole 151 Foot base 153 Rotating shaft 154 Foot bottom 155 Elastic member 156 Insertion pin 156a Pin 156b, 156c Member 211 Pin hole 421 Sliding Hole

Claims (16)

It has a pair of pipe-shaped tubular portions, a cane tip portion that is connected to the lower end of the tubular portion, and a grip portion that is gripped in the walking direction at the center of the tubular portion, and is difficult to walk A walking stick-shaped walking aid that assists the walking of a pedestrian,
The pair of pipes constituting the tubular portion has an expansion / contraction function that slides pipes having different diameters to expand and contract as a whole,
At the center of the tubular portion, an erection reinforcement portion is provided that includes two grip-like members that are erected on the pair of pipes at predetermined intervals in the vertical direction. When the distance between is close, the regulation of expansion and contraction of the tubular portion is released, and the tubular portion can be expanded and contracted. Of the pipes having different diameters constituting the tubular portion, the small-diameter pipe is provided with a lock button that protrudes radially outward, and the lock button restricts expansion and contraction of the pipe in a protruding state,
One of the two grips of the installation reinforcing portion is in sliding contact with the outside of the small diameter pipe constituting the tubular portion at both ends in the installation direction, and the sliding contact portion has an inner wall with the small diameter. It is a pipe-shaped member that abuts on the lock button of the pipe, and the pipe-shaped member is formed so that the inner diameter is gradually narrowed from one end to the other end of the upper and lower ends,
When the one grip is slid on the pair of pipes in either the upper or lower direction, the contact portion of the lock button moves to the narrow portion, the lock button is embedded, and The walking aid according to claim 1, wherein pipes having different sizes can slide. The cane tip portion includes a folding rotation portion that rotates around an axis in the erection direction,
The rotation axis of the folding rotation part is disposed at a position deviating from the cane axis of the cane-like walking aid and in a direction substantially orthogonal to the cane axis,
The walking aid according to claim 1, wherein the walking assisting device is configured to be foldable into two by turning the folding turning portion.   The walking aid according to any one of claims 1 to 3, wherein a foot which is a tip portion of the cane tip portion is configured to be detachable. It has a pair of pipe-shaped tubular portions, a cane tip portion that is connected to the lower end of the tubular portion, and a grip portion that is gripped in the walking direction at the center of the tubular portion, and is difficult to walk A walking stick-shaped walking aid that assists the walking of a pedestrian,
The cane tip portion includes a folding rotation portion that rotates around an axis in the erection direction,
The rotation axis of the folding rotation part is disposed at a position deviating from the cane axis of the cane-like walking aid and in a direction substantially orthogonal to the cane axis,
A walking aid that is configured to be foldable into two as a whole by the rotation of the folding rotation unit. The cane tip portion includes a rotation fixing portion that screws the folding rotation portion and regulates the rotation by the folding rotation portion,
The walking assistance tool according to claim 5, wherein the rotation fixing part releases the restriction of the rotation when the screw is screwed off. A screw hole projecting upward is provided at the upper end of the folding rotation part,
The rotation fixing portion includes a fixing screw that is screwed into the screw hole from above, and a fixing portion body that covers the protruding screw hole when screwing.
The walking aid according to claim 6, wherein the restriction of the rotation is released by unscrewing the fixing screw from the screw hole and pulling up the fixing portion main body together with the fixing screw. A screw hole projecting upward is provided at the upper end of the folding rotation part,
The rotation fixing portion includes a fixing screw that is screwed into the screw hole from above, and a fixing portion body that covers the protruding screw hole when screwing.
A notch is formed in a part of the lower end of the fixed portion main body,
The screw screw is unscrewed from the screw hole, and the fixing screw is pulled upward, whereby the protruding screw hole can be removed from the notch, and the rotation restriction is released. Item 7. A walking aid according to item 6. The pair of pipes constituting the tubular portion has an expansion / contraction function that slides pipes having different diameters to expand and contract as a whole,
At the center of the tubular portion, an erection reinforcement portion is provided that includes two grip-like members that are erected on the pair of pipes at predetermined intervals in the vertical direction. The walking aid according to any one of claims 5 to 8, wherein when the distance between is close, the restriction of expansion and contraction of the tubular portion is released, and the tubular portion can be expanded and contracted.   The walking aid according to any one of claims 5 to 9, wherein a foot portion which is a tip portion of the cane tip portion is configured to be detachable. It has a pair of pipe-shaped tubular portions, a cane tip portion that is connected to the lower end of the tubular portion, and a grip portion that is gripped in the walking direction at the center of the tubular portion, and is difficult to walk A walking stick-shaped walking aid that assists the walking of a pedestrian,
The walking aid is characterized in that a foot portion which is a tip portion of the cane portion is configured to be detachable. The pair of pipes constituting the tubular portion has an expansion / contraction function that slides pipes having different diameters to expand and contract as a whole,
At the center of the tubular portion, an erection reinforcement portion is provided that includes two grip-like members that are erected on the pair of pipes at predetermined intervals in the vertical direction. The walking aid according to claim 11, wherein when the distance between the two is close, the restriction of expansion and contraction of the tubular part is released, and the tubular part can be expanded and contracted. The cane tip portion includes a folding rotation portion that rotates around an axis in the erection direction,
The rotation axis of the folding rotation part is disposed at a position deviating from the cane axis of the cane-like walking aid and in a direction substantially orthogonal to the cane axis,
The walking aid according to claim 11 or 12, wherein the walking folding tool is configured to be foldable into two parts by turning the folding turning part.   14. The foot portion according to any one of claims 1 to 13, wherein the foot portion includes a shaft having a spherical lower end and a foot portion that rotatably supports the shaft downward. The walking aid described. The grip portion includes a pipe-shaped frame that slides on the outside of the pair of pipes, a grip that is laid on the frame, and a pin hole in the framing direction that is erected below the erection position of the grip. An auxiliary grip provided, and a fixing pin to be inserted into the pin hole,
The pair of pipes are provided with pin holes along the axis at predetermined intervals,
The grip portion slides on the outside of the pair of pipes, overlaps the pin holes on the pair of pipes and the pin holes of the auxiliary grip, and passes through the overlapped pin holes. The walking aid according to any one of claims 1 to 14, wherein a fixing pin is inserted to adjust a height position of the grip portion. At the top end of the tubular part, a side support part serving as a base for placing the side of the pedestrian is provided,
The walking aid according to any one of claims 1 to 15, wherein both ends of the side support portion in the walking front-rear direction are formed facing upward.

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