JP2020092773A - Multi leg cane - Google Patents

Abstract

To provide a multi leg cane which allows a user to stably walk while applying a partly large load (weight) to a cane even when a user walks while using a cane and directing the cane to an oblique direction.SOLUTION: A multi leg cane 10 comprises: a plurality of leg bodies each of which comprises, a shaft, a grip being provided on an upper end of the shaft and gripped by a user, a plurality of fastening parts being fastened to a lower end of the shaft and extending radially in a direction orthogonal to the shaft, and a plurality of leg parts 16 extending from a tip end of each fastening part to a lower side; and a plurality of ferrules 17 each of which is fitted to a lower end of one of the plurality of leg parts 16 and can contact a floor face or a flat ground surface. A length of each of the plurality of leg parts 16 can be independently and gradually adjusted by a leg part length adjustment mechanism 26 provided on each leg part 16.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a multi-legged cane formed by supporting a user with a plurality of legs to easily balance the walking of the user.

Conventionally, a support part having a plurality of grounding legs (stone stakes) in contact with the ground, a shaft part provided with a handle part on the upper part and standing on the support part, and one or more weights detachably attached to the lower part. A multi-point support cane equipped with is disclosed (for example, refer to Patent Document 1 (Claim 1, paragraph [0020], FIG. 1)).

In the multi-point support cane thus configured, the weight of the whole multi-point support cane can be adjusted by adjusting the number of weights. As a result, the weight can be adjusted according to the walking ability of the elderly and the multi-point support cane can be used. Therefore, when strengthening muscle strength, the number of weights can be increased to improve walking ability. In addition to being able to do so, walking training can be carried out in a state as light as possible.

On the other hand, there is disclosed a walking aid cane including a cane main body portion, a grip portion attached to an upper end side of the cane main body portion, and a plurality of support leg portions attached to a lower end side of the cane main body portion. (For example, refer to Patent Document 2 (claims 1 to 3, paragraphs [0011] and [0012], FIG. 1 and FIGS. 3 to 5).). In this walking assistance cane, each support leg is provided with a cushioning mechanism whose length can be changed by expanding and contracting under load. This buffer mechanism is provided with a stopper so that it does not shrink more than a predetermined length. Further, the cushioning mechanism has an elastic member that can expand and contract due to weight.

In the walking assistance cane configured as described above, since a plurality of support legs are provided with cushioning mechanisms respectively so that the support legs can expand and contract, when the rear support legs land before the front side, the rear side supports The front support legs will come to land as the support legs shrink, and the front and rear support legs will land smoothly and remain stable on the floor even when the cane is projected diagonally. Can support cane users. When the walking motion swings forward while the supporting legs are in contact with the ground while walking, the supporting legs on the front side contract and the supporting legs on the rear side expand to support the walking. The state in which the legs are grounded is maintained, and a stable supporting state can be continued. Therefore, the user can perform a natural walking motion while supporting the weight with the cane without having to lean forward.

JP, 2010-57594, A JP, 2009-233041, A

Conventionally, as a walking method using a cane, three-movement walking shown in FIG. 13 and two-movement walking shown in FIG. 14 are known. Consider a case where a user of a cane in which the affected leg is the left leg 1a and the unaffected leg is the right leg 1b is walking with the right hand holding the grip of the cane. In three-movement walking, the left leg 1a (after the stone butt 17 is brought forward (FIG. 13(b)) with the stone butt 17 of the cane approaching the trunk of the user (FIG. 13(a)). The three operations of extending the affected side leg forward (FIG. 13C) and further extending the right leg 1b (healthy side leg) forward (FIG. 13D) are repeated. On the other hand, in two-movement walking, the cane stake 17 and the left leg 1a (the affected side leg) were brought forward at the same time with the cane stake 17 slightly separated from the trunk of the user (FIG. 14(a)). After that (FIG. 14(b)), the right leg 1b (the leg on the unaffected side) is moved forward (FIG. 14(c)), and two operations are repeated. Then, in the multi-legged cane having a plurality of studs like the conventional multi-point support cane shown in Patent Document 1, it is not possible to walk in a stable posture unless all the studs are brought into contact with the floor surface or the flat ground. Therefore, a general walking is a three-movement walking (FIG. 13) in which the cane is lowered from directly above and the above-mentioned three movements are repeated. On the other hand, in the case of a rod-shaped cane having a single stone stake, the two-step walking (FIG. 14) in which the above two steps are repeated is a general walking method.

However, in recent years, a user of a rod-shaped cane performing two-movement walking has more and more chances to use the multi-legged cane. There was a problem that I was walking. Specifically, when performing a two-movement walking using a multi-legged cane, as with a stick-shaped cane, the multi-legged cane is walked at a position about 15 cm to 20 cm away from the body so that the cane is slanted. However, there is a problem in that only two or one of the plurality of stakes comes into contact with the floor surface or the like, resulting in unstable walking. On the other hand, if all of the multiple stone canes of the multi-legged cane are brought into contact with the floor surface, etc., the hand holding the grip separates from the trunk, and the axis of the user's arm and the axis of the cane do not become straight. However, there is a problem that the walking condition becomes unstable because the weight cannot be applied to the cane.

Further, in the walking cane disclosed in the above-mentioned conventional patent document 2, the intention is made while walking while weight is applied to the cane in a state where the axis line of the user's arm and the axis line of the cane are substantially aligned. Without doing so, the support leg may expand and contract in the direction in which the angle formed by both axes decreases, and when the support leg expands and contracts in this way, the angle formed by both axes changes in a direction that further decreases. There was a problem that the walking condition was stable.

A first object of the present invention is to provide a multi-legged cane that can walk in a stable state while applying a large load (weight) to the cane even when the cane is walked obliquely. A second object of the present invention is to provide a multi-legged cane in which the legs can be made relatively compact and the length of the legs can be changed relatively easily. A third object of the present invention is to provide a stable state for a user of a multi-legged cane, in which the length of the leg portion does not change unintentionally even when a large load (weight) is applied to the multi-legged cane. To provide a multi-legged cane that can be walked on. A fourth object of the present invention is to provide a multi-legged cane in which the joint strength between the shaft and the plurality of fixing portions is extremely high.

A first aspect of the present invention is, as shown in FIGS. 1 to 3, fixed to a shaft 11, a grip 17 provided on an upper end of the shaft 11 and held by a user 1, and a lower end of the shaft 11. A plurality of leg bodies 13 each having a plurality of fixing portions 14 extending radially in a direction orthogonal to the shaft 11 and a plurality of leg portions 16 extending downward from the tip of each fixing portion 14, and a plurality of leg portions. In a multi-legged cane 10 that is fitted to the lower ends of 16 and that has a plurality of studs 17 that can come into contact with the floor surface 33 or a flat ground, the length of each of the plurality of leg portions 16 is equal to that of the leg portions 16. It is characterized in that the leg length adjusting mechanism 26 is provided so as to be adjustable in stages independently of each other.

A second aspect of the present invention is the invention based on the first aspect, and further, as shown in FIGS. 1 and 2, the leg portion 16 includes a hollow outer leg portion 27 and the outer leg portion 27. It comprises a hollow inner leg portion 28 slidably inserted, and the protruding length of the inner leg portion 28 from the outer leg portion 27 can be changed stepwise by the leg length adjusting mechanism 26. Characterize.

A third aspect of the present invention is an invention based on the second aspect, and further, as shown in FIGS. 1 and 2, the leg length adjusting mechanism 26 forms a space in the outer leg portion 27 in the longitudinal direction. A plurality of leg through holes 27a formed as a result, and a single leg that is built into the inner leg 28 and has a tip protruding from the inner leg 28 and selectively insertable into the plurality of leg through holes 27a. It is characterized by having a member pin 29 and a leg elastic body 31 which is built in the inner leg 28 and urges the leg pin 29 in a direction in which the leg pin 29 projects from the inner leg 28.

A fourth aspect of the present invention is the invention based on the first aspect, and further, as shown in FIGS. 3, 8 and 9, in a plane fixed to the lower end portion of the shaft 11 and orthogonal to the shaft 11. A support plate 18 extending further is provided, and a plurality of fixing portions 14 are fixed to the lower surface of the support plate 18, respectively.

In the multi-legged cane according to the first aspect of the present invention, the length of each of the plurality of legs is adjusted according to the usage situation of the user who uses the multi-legged cane. After adjusting to the mechanism, the user walks with this adjusted multi-legged cane. As a result, even if the multi-legged cane is walked diagonally, it is possible to apply a large load (weight) to the multi-legged cane while all of the multiple stone canes of the multi-legged cane are in contact with the floor or the like. Therefore, the user of the multi-legged cane can walk in a stable state.

In the multi-legged cane according to the second aspect of the present invention, the protruding length of the inner leg portion of the leg portion from the outer leg portion can be changed stepwise by the leg portion length adjusting mechanism. It can be made compact and the length of the legs can be changed relatively easily.

In the multi-legged cane according to the third aspect of the present invention, when adjusting the length of the leg portion, the leg pin is blocked by a finger to close the leg hole through which the leg pin projects. When the outer leg portion is slid in the pushing direction or the pulling direction with respect to the inner leg portion while being pushed into the inner leg portion against the elastic force of the portion elastic body, the leg pin is The elastic force of the leg elastic body projects from the leg through hole adjacent to the leg through hole. This operation is repeated until the legs reach the desired length. As a result, since the legs are fixed to the desired lengths respectively, a large load (body weight) is applied to the multi-legged cane while all the multiple stakes of the multi-legged cane are in contact with the floor or the like. However, the length of the legs does not change unintentionally, and the user of the multi-legged cane can walk in a stable state.

In the multi-legged cane according to the fourth aspect of the present invention, the support plate is fixed to the lower end portion of the shaft, and the plurality of fixing portions are fixed to the lower surface of the support plate. Therefore, the joint strength between the shaft and the plurality of fixing portions is high. Is extremely high.

It is the sectional view on the AA line of FIG. 2 which shows the leg part and stone stake of the multi-legged cane of embodiment of this invention. It is the BB sectional view taken on the line of FIG. FIG. 8 is a front view of a cane and a user showing a state of performing two-movement walking using the multi-legged cane. It is a C arrow line view of FIG. FIG. 5 is a view on arrow D in FIG. 4. FIG. 5 is a view on arrow E of FIG. 4. (A) is a figure corresponding to Drawing 6 showing the state where two legs were shortened one step among four legs, and (b) is four stones fitted by four legs. FIG. 7 is a diagram corresponding to FIG. 6 showing a state in which all the protrusions are brought into contact with the floor surface and the shaft is inclined by an angle θ _{1 with} respect to the vertical line. It is a F arrow line view of FIG. It is the GG sectional view taken on the line of FIG. It is the HH sectional view taken on the line of FIG. It is a cane and a side view of a user which show the state which is performing the 3-motion walk using the multi-legged cane. (A) is a figure corresponding to Drawing 4 showing the state where two legs were shortened two steps among four legs, and (b) is four stones fitted in four legs. It is a figure corresponding to FIG. 4 which shows the state which abutted all the protrusions on the floor surface, and inclined the shaft with respect to a vertical line by angle (theta) ₂ . It is a figure which shows the movement of the user's leg of a cane and the stone butt of a cane at the time of performing the 3-motion walk of a prior art example and embodiment. It is a figure which shows the movement of the user's leg of a cane and the stone butt of a cane at the time of performing two-motion walking of a prior art example and embodiment.

Next, a mode for carrying out the present invention will be described based on the drawings. As shown in FIGS. 4 to 6, the multi-legged walking stick 10 includes a shaft 11, a grip 12 provided at an upper end portion of the shaft 11, a plurality of fixing portions 14 fixed to a lower end portion of the shaft 11, and a plurality of fixing portions 14. A plurality of leg bodies 13 each having a plurality of leg portions 16 extending downward from the tip of the fixing portion 14 and a plurality of studs 17 fitted to the lower ends of the plurality of leg portions 16 are provided. .. In addition, the multi-legged cane 10 in this embodiment further includes a support plate 18 fixed to the lower end of the shaft 11 by welding (FIGS. 8 and 9). In this embodiment, the shaft 11 is provided with a shaft main body 19 which is linearly extended from the lower part to the central part and is expandable and contractible, and a grip fitting portion (not shown) provided on the upper end of the shaft main body 29. Have (FIGS. 4-6). The shaft body 19 includes a hollow outer shaft portion 21 and a hollow inner shaft portion 22 slidably accommodated in the outer shaft portion 21 (FIGS. 4 to 6 and 10 ). The outer shaft portion 21 is formed in a cylindrical shape, and the inner shaft portion 22 is formed in a cylindrical shape slightly smaller than the outer shaft portion 21. Accordingly, the inner shaft portion 22 is slidably accommodated in the outer shaft portion 21. Further, in this embodiment, a hollow grip fitting portion extending horizontally is provided at the upper end of the outer shaft portion 21 via a hollow inclined pipe portion 23 extending obliquely upward, and this grip fitting portion has a hollow grip fitting portion. The grip 12 is fitted (FIG. 4). The outer shaft portion 21, the inclined pipe portion 23, and the grip fitting portion are integrally formed by a round pipe made of aluminum alloy, magnesium alloy, carbon, carbon steel, or the like, and the inner shaft portion 22 is made of aluminum. It is formed by a round pipe made of alloy, magnesium alloy, carbon, carbon steel or the like.

The grip 12 is made of polypropylene (PP) resin, acrylonitrile-butadiene-styrene (ABS) resin, elastomer resin, polyurethane resin, polyvinyl chloride (PVC) resin, etc., and is formed into a cylindrical shape with one end closed. The grip 12 is fitted to the grip fitting portion of the shaft 11 (FIG. 4). The grip 12 is configured so that the user 1 can hold it. Further, in this embodiment, the support plate 18 is formed in a rectangular shape from a carbon steel plate, a stainless steel plate, or the like, and is provided so as to extend in a plane orthogonal to the shaft 11 (FIGS. 4 to 6 and 9 ). An insertion hole 18a is formed in the center of the support plate 18, and a lower end portion of the inner shaft portion 22 is inserted into the insertion hole 18a. In this state, the support plate 18 is fixed to the lower end portion of the inner shaft portion 22 by welding. (FIGS. 8 and 9). As a result, the support plate 18 is firmly fixed to the lower end of the shaft 11. Further, the number of legs 13 is four in this embodiment. Therefore, the number of the fixing portions 14 and the number of the leg portions 16 are also four in this embodiment. The four fixing portions 14 are formed by a round pipe for welding made of carbon steel, stainless steel, aluminum alloy, magnesium alloy, steel or the like in a state of radially extending in a direction orthogonal to the shaft 11 and supporting plate 18 Are fixed to the lower surface of each by welding (FIG. 8). As a result, the four fixing portions 14 are firmly fixed to the support plate 18. In this way, since the four fixing portions 14 are firmly fixed to the shaft 11 via the support plate 18, the joint strength between the shaft 11 and the four fixing portions 14 is extremely high. However, the two fixing portions 14, 14 are connected at their base ends by a connecting pipe 24 formed by the above-mentioned welding round pipe. Specifically, by bending one round pipe for welding into a substantially "[" shape, that is, a substantially hexagonal bracket shape, two fixing portions 14 and 14 having central portions connected by a connecting pipe 24 are formed. It That is, since the two fixing portions 14 and 14 are integrally formed by bending one welding round pipe, two fixing portions 14 are formed by two welding circular pipes in total. To be done.

On the other hand, the length of each of the four legs 16 can be adjusted in a stepwise manner independently of each other by the leg length adjusting mechanism 26 provided in each leg 16 (FIGS. 1 and 2). .. Specifically, the leg portion 16 includes a hollow outer leg portion 27 and a hollow inner leg portion 28 slidably inserted into the outer leg portion 27. The protruding length of the inner leg portion 27 from the outer leg portion 28 can be changed stepwise by the leg length adjusting mechanism 26. Further, the inner leg portion 28 is provided so as to extend downward from the tip of the fixing portion 14 (FIGS. 4 to 6 and 9). In this embodiment, the two inner leg portions 28, 28 are formed by bending one welding round pipe into a substantially "[" shape, that is, a substantially hexagonal bracket shape, respectively. , 14 are formed by bending the tip end portions downward (FIGS. 8 and 9). That is, since the two inner leg portions 28 and 28 and the two fixing portions 14 and 14 are integrally formed by bending one welding round pipe, two welding round pipes are used. A total of four fixing portions 14 and inner leg portions 28 are formed respectively. Further, the outer leg portion 27 is formed by a round pipe made of carbon steel, stainless steel, aluminum alloy, carbon, magnesium alloy, etc., and the inner diameter of the outer leg portion 27 is slightly smaller than the outer diameter of the inner leg portion 28. Are largely formed (Fig. 1). As a result, the inner leg portion 28 is slidably inserted into the outer leg portion 27.

The leg length adjusting mechanism 26 includes a plurality of leg through holes 27 a formed in the outer leg portion 27 at intervals in the longitudinal direction, and the inner leg portion 28 having a tip portion protruding from the inner leg portion 28. A single leg pin 29 that can be selectively inserted into the plurality of leg through holes 27a, and a bias pin that is built into the inner leg 28 and that causes the leg pin 29 to project from the inner leg 28. The leg elastic body 31 is provided (FIGS. 1 and 2). In this embodiment, the number of the leg through holes 27a is three. The leg pin 29 includes a pin body 29a that is detachably inserted into the leg hole 27a and has a hemispherical tip, and a columnar body that projects from the base end of the pin body 29a and has a smaller diameter than the pin body 29a. And part 29b (FIG. 1). Further, at the center of the inner leg portion 28 in the longitudinal direction, when the inner leg portion 28 is inserted into the outer leg portion 27 and slid, the inner leg portion 28 is selectively aligned with the plurality of leg portion through holes 27a and the leg portion is formed. A single leg through hole 28a having the same diameter as that of the through hole 27a is formed. Further, in this embodiment, the leg elastic body 31 is composed of a leaf spring formed by bending a strip-shaped spring steel plate into a substantially U shape. A locking hole 31a is formed near one end of the leaf spring 31, and the columnar portion 29b of the leg pin 29 is inserted into the locking hole 31a and the columnar portion 29b is caulked to near the one end of the leaf spring 31. The leg pin 29 is fixed to the. Then, both ends of the leaf spring 31 are elastically deformed in a direction away from each other and pressed against the inner surface of the inner shaft portion 28, respectively, so that the leg pin 29 is removed from the leg through hole 28a and the leg through hole 27a. It is biased in the protruding direction. Reference numeral 32 in FIGS. 1 and 2 denotes a leg cover body fitted to the upper portion of the outer leg portion 28. A recess 32a for exposing the upper leg through hole 27a of the three leg through holes 27a is formed in the leg cover 32 (FIG. 2).

In this embodiment, the number of the ridges 17 is four. These ridges 17 are made of natural rubber, synthetic rubber, elastomer resin, polyvinyl chloride (PVC) resin, or the like from the bottom to the top. It is formed in the shape of a truncated cone (FIGS. 1 and 2). Further, a fitting hole 17a which can be fitted into the outer leg portion 27 is formed in the butt 17, and a plain washer 17b for receiving the lower end of the outer leg portion 27 is embedded in the bottom portion of the fitting hole 17a ( (Fig. 1). Then, the four ridges 17 are respectively fitted to the lower end portions of the four outer leg portions 27 and are configured to be able to contact the floor surface 33. The multi-legged cane 10 of this embodiment is a cane for the right hand in which the user 1 holds the grip 17 with the right hand 1c (FIGS. 3 and 11). Therefore, with the user 1 gripping the grip 17, as shown in FIGS. 6 and 8, the two legs on the trunk side from the vertical plane S ₀ including the axis of the shaft 11 and the axis of the grip 17. distance L ₁ to the surface S ₁ containing the axis of the 16, 16 is shorter than the distance L ₂ to the surface S ₂ containing the two axes of the legs 16, 16 of counter-torso side from the vertical surface S ₀ Is set as follows. As a result, the leg 16 of the multi-legged cane 10 can be brought close to the trunk without coming into contact with the right leg 1b of the user 1, so that the user 1 is stable on the multi-legged cane 10. You can multiply your weight.

On the other hand, the length of the expandable/contractible shaft body 19, that is, the protruding length of the inner shaft portion 22 from the outer shaft portion 21 is configured to be adjustable stepwise by the shaft length adjusting mechanism 34 (FIG. 10). The shaft length adjusting mechanism 34 selects a plurality of shaft portion through holes 21a formed in the outer shaft portion 21 at intervals in the longitudinal direction and a plurality of shaft portion through holes 21a built in the inner shaft portion 22. And a single shaft portion pin 36 that can be locked, and a shaft portion elastic body 37 that is built in the inner shaft portion 22 and that urges the shaft portion pin 36 in a direction to project from the inner shaft portion 22. Have. The shaft pin 36 is detachably inserted into the shaft through hole 21a and has a semi-spherical tip, and the base end of the shaft pin 36 is a cylindrical pin having a diameter larger than that of the shaft through hole 21a. Stopper 36a is provided. Further, in the vicinity of the upper end of the inner shaft portion 22, when the inner shaft portion 22 is inserted into the outer shaft portion 21 and slid, the inner shaft portion 22 selectively coincides with the plurality of shaft portion through holes 21a and the shaft portion passage hole 21a. A single shaft part through hole 22a having the same diameter as the hole 21a is formed. Furthermore, the elastic body 37 for the shaft portion is formed by bending a spring body 37a formed by bending a linear spring steel into a substantially U shape, and bending one end of the spring body 37a outward at a substantially right angle. It is composed of a U-shaped spring composed of a bent portion 37b. The U-shaped spring 37 is elastically deformed in such a manner that both ends thereof are separated from each other, so that the bent portion 37b is inserted into the insertion hole 36b formed in the center of the pin stopper 36a, and the other end of the spring body 37a is The pin 36 for the shaft portion is pressed against the inner surface of the inner shaft portion 22 and is urged in the direction of protruding from the through hole 22a for the shaft portion and the through hole 21a for the shaft portion. Here, reference numeral 38 in FIGS. 4 to 6 and 10 is a lock nut for preventing rattling between the outer shaft portion 21 and the inner shaft portion 22, and FIGS. Reference numeral 39 in 9 denotes a shaft cover body that covers the insertion hole 18a of the support plate 18 through which the lower end of the inner shaft 22 is inserted. In this embodiment, the U-shaped spring is used as the shaft elastic body. However, as the shaft elastic body, a plate spring formed by bending a plate spring steel into a substantially U shape, A coil spring, a torsion coil spring or the like may be used.

A method of using the multi-legged cane 10 thus configured will be described.

(1) When the user 1 walks in two motions using the multi-legged cane 10 as shown in FIG.
First, as shown in FIG. 6, the leg pins 29 of the four leg portions 16 of the multi-legged cane 10 are inserted into the upper leg passage holes 27a of the three leg passage holes 27a. After the four leg portions 16 are all extended to the longest, the projecting length of the inner shaft portion 22 of the shaft body 19 from the outer shaft portion 21 is gradually adjusted by the shaft length adjusting mechanism 34. Thus, the multi-legged cane 10 is set to a length that is easy for the user 1 to use. When adjusting the total length of the multi-legged walking stick 10, by blocking the shaft portion through hole 21a from which the shaft portion pin 36 is projected with a finger, the shaft portion pin 36 resists the elastic force of the U-shaped spring 37. When the outer shaft portion 21 is slid in the pushing direction or the pulling direction with respect to the inner shaft portion 22 while being pushed into the inner shaft portion 22, the shaft portion pin 36 causes the shaft portion pin 36 to pass through. 21. The elastic force of the U-shaped spring 37 projects from the shaft portion through hole 21a adjacent to 21a. By repeating this operation until the total length of the multi-legged cane 10 reaches the desired length, the total length of the multi-legged cane 10 is fixed to the desired length, and then the lock nut 38 is tightened, so that the outer shaft portion 21 and It prevents rattling with the inner shaft portion 22.

Next, as shown in FIG. 7A, the leg pins 29 of the two leg portions 16 on the trunk side of the user 1 are attached to the central leg portion of the three leg through holes 27a. It inserts in each through hole 27a. Specifically, by closing the upper leg through hole 27a from which the leg pin 29 is projected with a finger, the leg pin 29 is resisted against the elastic force of the leaf spring 31 and the inside of the inner leg 28 is prevented. When the outer leg portion 27 is slid in the pushing direction with respect to the inner leg portion 28 in the state of being pushed in, the leg pin 29 for the central leg portion adjacent to the upper leg portion through hole 27a is formed. The elastic force of the leaf spring 31 projects from the through hole 27a. In this way, the length of the leg 16 can be changed relatively easily. Then, since only the two legs 16, 16 on the trunk side of the user 1 are shortened by one step, when all the four stakes 17 are brought into contact with the floor surface 33, the multi-legged cane 10 As shown in FIG. 3 and FIG. 7B, the axis of the shaft 11 inclines toward the trunk by θ ₁ .

When the user 1 holds the grip 12 of the multi-legged cane 10 and walks in two motions, the stone butt 17 is slightly separated from the trunk of the user 1 (FIG. 14( a )). And the left leg 1a (the affected leg) are forwarded at the same time (FIG. 14(b)), and then the right leg 1b (the healthy leg) is forwarded (FIG. 14(c)). .. At this time, as shown in FIG. 3, even when the multi-legged cane 10 is slid sideways while walking with the four stone butt 17 slightly separated from the trunk, the four stones of the multi-legged cane 10 are walked. Since a large load (body weight) can be applied to the multi-legged cane 10 in a state where all the protrusions 17 are in contact with the floor surface 33, the user 1 of the multi-legged cane 10 can walk in a stable state. .. Further, since the four leg portions 16 are fixed to desired lengths by the leg length adjusting mechanism 26, in a state where all the four stakes 17 of the multi-legged cane 10 are in contact with the floor surface 33. Even if a large load (body weight) is applied to the multi-legged cane 10, the length of the legs 16 does not change unintentionally, and the user 1 of the multi-legged cane 10 can walk in a stable state. You can

(2) In the case where the user 1 walks in three motions using the multi-legged cane 10 as shown in FIG. 13, the legs 1a and 1b of the user 1 and the stone foot 17 of the multi-legged cane 10 are shown in FIG. When weighting the multi-legged cane 10 when in the position shown in a):
As shown in FIG. 6, by inserting the leg pins 29 of the four leg portions 16 of the multi-legged cane 10 into the upper leg passage holes 27a of the three leg passage holes 27a, 4 After the leg portions 16 of the book are all extended to the longest, by adjusting the projecting length of the inner shaft portion 22 of the shaft body 19 from the outer shaft portion 21 stepwise by the shaft length adjusting mechanism 34, The multi-legged cane 10 is set to a length that is easy for the user 1 to use. When the user 1 holds the grip 12 of the multi-legged cane 10 and walks in three motions, the stone butt 17 is brought close to the trunk of the user 1 (FIG. 13A) and After putting it forward (Fig. 13(b)), put the left leg 1a (the affected leg) forward (Fig. 13(c)), and further put the right leg 1b (the healthy leg) forward (Fig. 13). The three operations (d)) are repeated. Then, the multi-legged cane 10 is struck from directly above while walking with the four stakes 17 close to the trunk, and the legs 1a and 1b of the user 1 and the stakes 17 are at the positions shown in FIG. 13(a). When all the four foot 17 of the multi-legged cane 10 are in contact with the floor surface 33, a large load (weight) can be applied to the multi-legged cane 10 to some extent. The user 1 of can walk in a stable state. Further, since all of the four leg portions 16 are fixed to the same length by the leg portion length adjusting mechanism 26, in a state where all the four stakes 17 of the multi-legged walking stick 10 are in contact with the floor surface 33. Even if a large load (body weight) is applied to the multi-legged cane 10, the length of the legs 16 does not change unintentionally, and the user 1 of the multi-legged cane 10 can walk in a stable state. You can

(3) When the user 1 walks in three movements using the multi-legged cane 10 as shown in FIG. 13, the legs 1a and 1b of the user 1 and the stone foot 17 of the multi-legged cane 10 are shown in FIG. To put weight on the multi-legged cane 10 when in the position shown in b):
First, as shown in FIG. 6, the leg pins 29 of the four leg portions 16 of the multi-legged cane 10 are inserted into the upper leg passage holes 27a of the three leg passage holes 27a. After the four leg portions 16 are all extended to the longest, the projecting length of the inner shaft portion 22 of the shaft body 19 from the outer shaft portion 21 is gradually adjusted by the shaft length adjusting mechanism 34. Thus, the multi-legged cane 10 is set to a length that is easy for the user 1 to use. Next, as shown in FIG. 12A, the leg pins 29 of the two leg portions 16 on the rear side in the traveling direction of the user 1 are attached to the lower side of the three leg through holes 27a. It inserts in each leg hole 27a. As a result, only the two legs 16 and 16 on the rear side in the traveling direction of the user 1 are shortened by two steps. Therefore, when all four stakes 17 are brought into contact with the floor surface 33, the multi-legged cane 10 As shown in FIG. 12B, the axis of the shaft 11 is tilted backward by θ ₂ .

When the user 1 holds the grip 12 of the multi-legged cane 10 and walks in three motions, the stone butt 17 is brought close to the trunk of the user 1 (FIG. 13A) and After putting it forward (Fig. 13(b)), put the left leg 1a (the affected leg) forward (Fig. 13(c)), and further put the right leg 1b (the healthy leg) forward (Fig. 13). The three operations (d)) are repeated. Then, the multi-legged cane 10 is slanted forward while the four stakes 17 are brought close to the trunk, and the legs 1a and 1b of the user 1 and the stakes 17 are at the positions shown in FIG. 13(b). At this time, a large load (weight) can be applied to the multi-legged cane 10 to a certain extent in a state in which all four stakes 17 of the multi-legged cane 10 are in contact with the floor surface 33. The person 1 can walk in a stable state. Further, since the four leg portions 16 are fixed to desired lengths by the leg length adjusting mechanism 26, in a state in which all the four stakes 17 of the multi-legged cane 10 are in contact with the floor surface, Even if a large load (weight) is applied to the multi-legged cane 10, the length of the legs 16 does not change unintentionally, and the user 1 of the multi-legged cane 10 can walk in a stable state. it can.

Although the number of legs is four in the above embodiment, the number of legs may be three or five or more. In this case, the number of fixing portions and the number of legs are also three or five or more. Further, in the above embodiment, the support plate extending in the direction orthogonal to the shaft is fixed to the lower end portion of the shaft by welding, and the plurality of fixing portions extending radially are fixed to the lower surface of the support plate by welding. Alternatively, a plurality of radially extending fixing portions may be directly fixed to the lower end of the shaft by welding. Further, in the above-described embodiment, the leaf spring formed by bending the strip-shaped spring steel plate into a substantially U-shape is used as the leg elastic body, but the linear spring steel is substantially used as the leg elastic body. A U-shaped spring formed by bending into a U shape, a compression coil spring, a torsion coil spring, or the like may be used. Further, in the above-described embodiment, three leg through holes are formed in the outer leg portion at intervals in the longitudinal direction thereof, but two or four leg hole portions are formed in the outer leg portion at intervals in the longitudinal direction. The above-mentioned leg through holes may be formed. Further, in the above-described embodiment, a stone butt is fitted to the lower end of the hollow outer leg portion, and the inner leg portion is slidably inserted from the upper end of the outer leg portion, but at the lower end of the hollow inner leg portion. It is also possible to fit a stone butt and slidably insert the outer leg portion from the upper end of the inner leg portion. Furthermore, in the above-described embodiment, the butt is in contact with the floor surface, but the butt may be in contact with the flat ground. That is, the multi-legged cane of the present invention can be used not only indoors for walking on a flat floor surface but also outdoors as long as it walks on a flat ground.

10 Multi-legged cane 11 Shaft 12 Grip 13 Leg 14 Fixing part 16 Leg part 17 Stone butt 18 Support plate 26 Leg length adjusting mechanism 27 Outer leg part 27a Leg hole 28 Inner leg part 29 Leg pin 31 plate Spring (elastic body for legs)
33 floor

Claims (4)

A shaft, a grip provided on an upper end portion of the shaft for a user to grip, a plurality of fixing portions fixed to a lower end portion of the shaft and extending radially in a direction orthogonal to the shaft, and downward from a tip of each fixing portion. A plurality of leg bodies each having a plurality of extending leg portions, and a plurality of stone studs fitted to the lower ends of the leg portions and capable of contacting a floor surface or a flat ground surface, respectively. In the foot cane,
A multi-legged cane, wherein each length of the plurality of legs is configured to be adjustable stepwise independently of each other by a leg length adjusting mechanism provided on each of the legs. The leg portion includes a hollow outer leg portion and a hollow inner leg portion slidably inserted into the outer leg portion, and a protruding length of the inner leg portion from the outer leg portion is the leg. The multi-legged cane according to claim 1, wherein the multi-legged cane is configured to be capable of being changed stepwise by a part length adjusting mechanism. The leg length adjusting mechanism includes a plurality of leg through holes formed in the outer leg portion at intervals in the longitudinal direction, and a tip portion that is built in the inner leg portion and protrudes from the inner leg portion. A single leg pin that can be selectively inserted into a plurality of leg holes, and a leg part that is built in the inner leg part and that urges the leg pin in a direction to project from the inner leg part. The multi-legged cane according to claim 2, further comprising an elastic body. The multi-legged walking stick according to claim 1, further comprising a support plate fixed to a lower end portion of the shaft and extending in a plane orthogonal to the shaft, wherein the plurality of fixing portions are fixed to a lower surface of the support plate.

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