JP2008220643A - Walking aid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldable walking aid capable of improving the strength in a developed state and allowing a user to easily use the walking aid. <P>SOLUTION: The walking aid has a pair of left and right front leg rods 2 and 2 with front wheels 1 and 1 at the lower ends and a pair of left and right rear leg rods 4 and 4 with rear wheels 3 and 3 at the lower ends. The front leg rods and the rear leg rods are pivotally attached at the upper part in such a way as foldable forward/backward, and the pair of left and right front rods 2 and 2 are connected to each other in such a way as foldable in the left/right direction by connection member 5 and 5 which are pivotally connected in the X-shape. In this way, the walking aid is foldable forward/backward and in the left/right direction. The walking aid also has a left-right holding member 8 which is pivotally connected to each connection members 5 and which is foldable at the center. The left-right holding member 8 is composed of a left oscillating member 24 with a left boss board 26 to form a first positioning hole and a right oscillating member 25 with a right boss board 27 to form a second positioning hole. The first positioning hole and the second positioning hole are concentric while the connection members 5 and 5 are in the developed state, and a locking pin part of a locking member which is always resiliently energized by a resilient member is inserted into the first and second positioning holes like a skewer so that the connection members 5 and 5 can be retained in the developed state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a walking aid.

A conventional walking aid for the purpose of assisting the walking of the physically handicapped, such as an elderly person, includes a pair of left and right front legs having a front wheel at the lower end, and a pair of left and right rear legs having a rear wheel at the lower end. Are connected to each other in the front and rear, and a handle portion is provided on the upper part of the front leg hook. Furthermore, there is a walking assist device that can be folded back and forth and left and right.
In addition, as described in Patent Document 1, a lock member that can hold a foldable walking aid in an unfolded state is provided to improve stability during use, or a strong frame structure is provided for stability. There was something to improve.
However, safety in use is required, and since the structure is foldable, the structure is complicated and difficult to handle, and the reinforcing member that improves strength interferes with walking.
Japanese Patent No. 3080943

The problem to be solved is that it does not impair the auxiliary function of walking, which is the original purpose of use, and requires sufficient strength for use.
Then, this invention aims at provision of the walking aid which a user can use easily while improving the intensity | strength in the expansion | deployment state of the folding walking aid.

  Therefore, the walking aid according to the present invention pivotally attaches a pair of left and right front leg rods having a front wheel at the lower end and a pair of left and right rear leg rods having a rear wheel at the lower end so that it can be folded back and forth. In a walking aid that can be folded back and forth and left and right by connecting a pair of left and right front leg rods so as to be foldable left and right by a connecting member pivoted in an X shape, The left and right holding members include a left swing member having a left boss board that forms a first positioning hole and a right swing member having a right boss board that forms a second positioning hole. In the expanded state of the connecting member, the first positioning hole and the second positioning hole are concentric, and the lock pin portion of the lock member that is constantly elastically biased by the elastic member is the first positioning hole. Inserted into one positioning hole and the second positioning hole By inserting the Jo, and makes it possible hold the coupling member in a deployed state.

  In addition, a pair of left and right front leg rods having a front wheel at the lower end and a pair of left and right rear leg rods having a rear wheel at the lower end are pivotally attached at the upper part so that they can be folded back and forth, and are connected in an X-shape. A pair of left and right front leg rods are connected by a member so that they can be folded left and right. The front leg rods are slidably connected to the front leg rods, and are folded back and forth and left and right with side frame members pivoted to the rear leg rods. A possible walking aid has left and right holding members that are pivotally connected to each of the connecting members and foldable in the center, and have reinforcing members that pivotally connect the left and right holding members and the side frame members. The reinforcing member is formed in a dogleg shape or a curved shape in a deployed state in a direction approaching the front leg rod in a plan view.

  According to the walking assist device of the present invention, since the unfolded state can be held by the left and right holding members, stable walking is possible. Moreover, even if the user's load balance on the handle portion is biased, the folded state does not occur, so that the safety does not fall over and the safety is improved. In addition, since it is not inadvertently folded, it is safe without the danger of pinching fingers or legs. In addition, the left and right holding members are members that reinforce the strength of the walking aid and can hold the unfolded state, so there is no need to add a special locking mechanism, the number of parts can be reduced, and the weight and strength can be reduced. Is possible. Moreover, since the left and right holding members can be folded at the center, the walking aid can be easily folded. In addition, since the left and right holding members and the side frame members are pivotally connected by a reinforcing member, the strength of the walking aid can be improved, and the shape is curved or curved in a direction approaching the front heel in plan view. Therefore, it is possible to walk safely without narrowing the walking space surrounded by the left and right front leg rods and the left and right rear leg rods.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
FIG. 1 is a rear view of an embodiment of the present invention, and FIG. 2 is a side view thereof.

  1 and 2, reference numeral 2 denotes a pair of left and right front leg rods formed of metal pipes, and a front wheel 1 is attached to the lower end. The wheel 1 is not a caster mechanism, but is attached to the front leg rod 2 so as to be able to run and rotate. A handle portion 7 is connected to the upper end of the front leg 2. In addition, a cylindrical slide member 41 is externally fitted to each intermediate portion of the left and right front leg rods 2 and 2 so as to be slidable up and down, and a cylindrical first pivot member 30 is externally fitted to each upper portion. The pivot member 30 is regulated by a cylindrical first stopper member 43 that is fixedly fitted to the front leg 2 so as not to slide downward, and is fixedly fitted to the front leg 2 so that it cannot slide upward. It is regulated by a cylindrical exterior member 16. Then, the two connecting members 5 for connecting the left and right front leg rods 2 and 2 are pivoted in an X shape so that the upper ends thereof are pivoted to the bulging portion 30b of the pivoting member 30, and the coupling member 5 , 5 are pivotally attached to a bulging portion 41a of a slide member 41 that is slidably fitted to an intermediate portion of the front leg 2. Further, a second stopper member 40 that restricts the sliding of the slide member 41 upward is externally fitted and fixed to the front leg 2. That is, when the left and right handle portions 7 and 7 are moved closer to the left and right, the connecting members 5 and 5 pivoted in an X shape are closed while sliding the slide member 41 downward.

  Reference numeral 4 denotes a rear leg rod, which attaches the rear wheel 3 to the lower end. The upper end of the rear leg rod 4 is pivotally attached to the second bulging portion 30 b of the first pivot attachment member 30. A cylindrical second pivot member 42 is externally fitted and fixed to an intermediate portion of the rear leg rod 4. Then, one end portion of the plate-like side frame member 6 is pivotally attached to the bulging portion 41a of the slide member 41 of the front leg rod 2 so as not to interfere with the connecting member 5, and the second pivotal attachment of the rear leg rod 4 is provided. The other end of the plate-like side frame member 6 is pivotally attached to the bulging portion 42a of the member 42.

Further, left and right holding members 8 that can be folded at the center are pivotally attached to the lower ends of the connecting members 5 and 5 that are pivotally connected in an X shape.
Here, one embodiment of the left and right holding member 8 will be described in detail with reference to the drawings. FIG. 4 is a rear view showing an example of implementation of the left and right holding member 8, and FIG. 5 is a plan view thereof. 6 is a cross-sectional view taken along the line AA in FIG.
The left and right holding member 8 has left and right rocking members 24 and 25 which are the same plate-like members, and the left and right rocking members 24 and 25 have boss disks 26 and 27 in an outer shell arc shape at one end. The other end is provided with pivot holes 31, 32. Further, first and second boss holes 28 and 29 are formed in the center of the boss machines 26 and 27, and first and second positioning holes 26a and 27a are formed at predetermined positions of the boss machines 26 and 27, respectively. Yes. Then, as shown in FIG. 4, the first boss hole 28 and the second boss hole 29 are concentric and the same surfaces are brought into contact with each other, and a cylindrical liner 21 is fitted into the first and second boss holes. Only the outer peripheral end portion of the liner 21 protruding from the left and right rocking members 24 and 25 is crushed and pivotally attached like a rivet. Furthermore, as shown in FIG. 6, the lock member 20 is formed by bending the bar into a U-shape and forming the lock pin portion 20 a that is one end longer than the button pin portion 20 b that is the other end. The lock pin portion 20a is inserted into the first positioning hole 26a from the second positioning hole 27a in a skewered manner, and the button pin portion 20b is inserted through the inner hole 21a of the liner 21. Then, the elastic member 22 is inserted into the button pin portion 20b, and the button cap 23 that can be inserted into and fixed to the button pin portion 20b is fixed so that the elastic member 22 can always urge the lock member 20 to be elastically urged. ing. Here, FIG. 7 is a cross-sectional view of an essential part showing a state in which the button cap 23 is pushed so as to compress the elastic member 22. That is, as shown in FIG. 7, the lock pin portion 20a remains inserted into the second positioning hole 27a even if the button cap 23 is pushed to compress the elastic member 22.
Therefore, the left and right holding member 8 pivots the left and right swing members 24 and 25 so that the left and right boss boards 26 and 27 abut against each other so that the left and right swing members 24 and 25 can be folded downward. The movable member 24 is pivotally attached to the pivot attachment hole 31 by inserting a pivot attachment member (rivet, etc.), and the right lower end portion and the right swing member 25 are pivotally attached to the pivot attachment hole 32. It is pivotally attached through.

  Further, as shown in FIGS. 1 and 3, in the direction of approaching the front leg rod 2 in a plan view, in the middle part of the left and right rocking members 24 and 25 of the left and right holding member 8 pivotally attached to the connecting members 5 and 5, The front end 9a of the reinforcing members 9 and 9 formed in a U-shape or a curved shape is pivotally attached, and the reinforcing member 9 is disposed in front of the pivotally attached portion of the side frame member 6 and the second pivoting member 42. The left and right holding members 8 and the side frame member 6 are connected to each other by pivotally attaching the rear end portions 9b of the left and right 9. That is, the reinforcing members 9 and 9 are arranged and connected in a substantially C shape between the left and right holding members 8 and the left and right side frame members 6 and 6.

  The design of the present invention can be changed. For example, the left and right holding members 8 may be pivoted so as to be foldable upward. Further, the lock pin portion 20a is inserted into the second positioning hole 27a from the first positioning hole 26a in a skewered manner, and the button pin portion 20b is inserted into the inner hole 21a of the liner 21, so that the button cap 23 is inserted into the walking aid. It may be configured in front of. Further, instead of the inner hole 21 a of the liner 21, the inner hole 21 a may be formed with the first boss hole 28 and the second boss hole 29. Further, the left and right rocking members 24 and 25 of the left and right holding member 8 are not limited to a plate shape, but may be a bar material in which left and right boss boards 26 and 27 are formed.

The usage method (action) of the above-described walking aid of the present invention will be described.
First, in the unfolded state of the walking aid according to the present invention shown in FIGS. 1 to 3, the left and right rocking members 24 and 25 of the left and right holding member 8 are substantially horizontal, and the first and second positioning holes 26a and 27a. The button cap 23 fixed to the lock member 20 is always elastically urged by the elastic member 22 so that the lock pin portion 20a of the lock member 20 is inserted into the first and second positioning holes 26a, 27a. The connecting members 5 and 5 are held in a deployed state by being inserted. That is, the left and right holding member 8 holds the deployed state of the walking aid.
Further, the reinforcing members 9, 9 connect the left and right holding members 8 and the left and right side frame members 6, 6 to prevent the left and right rear leg rods 4, 4 from approaching inadvertently during use. Further, the left front and rear leg rods 2 and 4 and the right front and rear leg rods 2 and 4 are prevented from being twisted back and forth.

  When folding the walking aid according to the present invention, first, the button cap 23 of the left and right holding member 8 is pushed. Then, the lock pin portion 20a of the lock member 20 comes out of the first positioning hole 26a of the left swing member 24. Then, after the left and right holding members 8 are bent downward at the center, pressing of the button cap 23 is stopped. Then, since the left and right holding members 8 are bent downward at the center, the first and second positioning holes 26a and 27a of the left and right rocking members 24 and 25 are not concentric, and the lock pin portion 20a is the first. While not inserted into the positioning hole 26a, it remains inserted in the second positioning hole 27a, and the left and right swinging members 24 and 25 become swingable. In other words, the button cap 23 is pressed to release the holding state of the connecting members 5 and 5 by the left and right holding members 8.

  Next, with the handle portions 7 and 7, the front leg rods 2 and 2 are moved closer to the left and right. Then, since the front leg rods 2 and 2 and the rear leg rods 4 and 4 are respectively connected at the upper ends as described above, the rear leg rods 4 and 4 approach left and right. Further, the connecting members 5 and 5 pivotally connected to the front leg rods 2 and 2 in an X-shape are slid downward while closing the left and right. When the slide members 41 and 41 slide downward, the front ends of the side frame members 6 and 6 pivotally attached to the slide members 41 and 41 are lowered downward, and the left and right rear leg rods 4 and 4 are moved to the left and right. Approach the front legs 2 and 2 respectively.

Further, when the front leg rods 2 and 2 are moved closer to the left and right, the connecting members 5 and 5 pivoted in an X shape on the front leg rods 2 and 2 are closed to the left and right, respectively. The left and right holding members 8 pivoted to the center are bent downward at the center. Further, the left and right holding members 8 lower the front portions 9a of the reinforcing members 9, 9 downward while being bent downward.
Therefore, the walking aid according to the present invention is folded back and forth and left and right.

  As described above, the present invention includes a pair of left and right front leg rods 2, 2 having the front wheels 1, 1 at the lower end and a pair of left and right rear leg rods 4, 4 having the rear wheels 3, 3 at the lower end. A walking aid that can be folded back and forth and left and right by connecting the pair of left and right front leg rods 2 and 2 so as to be foldable by connecting members 5 and 5 pivotally attached to the upper part so as to be foldable. The left and right holding member 8 is pivotally connected to each of the connecting members 5 and 5 and is foldable in the center. The left and right holding member 8 has a left boss board 26 that forms a first positioning hole 26a. It is composed of a member 24 and a right swinging member 25 having a right boss board 27 that forms a second positioning hole 27a. When the connecting members 5 and 5 are deployed, the first positioning hole 26a and the second positioning hole 27a are formed. The lock pin portion 20a of the lock member 20 that is concentric and is always elastically biased by the elastic member 22 is the first. Since the connecting members 5 and 5 can be held in an unfolded state by being inserted into the positioning hole 26a and the second positioning hole 27a in a skewered manner, the walking aid is not inadvertently folded, and the user's fingers and legs Can be used safely. Further, since the left and right holding members 8 are provided with the first and second positioning holes 26a and 27a and the positioning lock member 20 is inserted and held, the left and right holding members 8 can be reliably held even if the parts are small. Moreover, since the large lockable member (refer patent document 1) is not required like the conventional walking aid, it can reduce in weight. In addition, since the lock member 20 is always urged and urged, it can be easily operated even by an elderly person or the like who is weak in the operation of holding the left and right holding members 8. Further, since the left and right holding members 8 are fixed by the lock member 20, the unfolded state can be held and the strength during use in the unfolded state can be improved.

  Further, a pair of left and right front leg rods 2 and 2 having the front wheels 1 and 1 at the lower end and a pair of left and right rear leg rods 4 and 4 having the rear wheels 3 and 3 at the lower end are pivoted at the upper part so that they can be folded back and forth. A pair of left and right front leg rods 2 and 2 are connected by connecting members 5 and 5 pivoted in an X shape so as to be foldable left and right, and are connected to the front leg rod 2 so as to be slidable up and down. 4 is a walking aid that can be folded back and forth and left and right with a side frame member 6 that is pivotally connected to 4 and has a left and right holding member 8 that is pivotally connected to each of the connecting members 5 and 5 and can be folded at the center. And a reinforcing member 9 that pivotally connects the left and right holding members 8 and the side frame member 6, and the reinforcing member 9 is in the shape of a dogleg or a curved shape in the direction of approaching the front leg rod 2 in a plan view when deployed. Because it is formed in the expanded state, it can secure a vast space in front of the user's feet when used in the expanded state, and the user's legs (Without interference) Atarazu strength member 9 can be used safely. Furthermore, since the user can step forward with large legs, a sufficient stride for walking can be secured and stable walking can be achieved. Moreover, since the left-right holding member 8 and the side frame member 6 are pivotally connected, the strength when used in the unfolded state is improved. The reinforcing members 9, 9 connect the left and right holding members 8 and the left and right side frame members 6, 6 to prevent the left and right rear leg rods 4, 4 from approaching inadvertently during use. Since the left front and rear leg rods 2 and 4 and the right front and rear leg rods 2 and 4 are prevented from twisting back and forth, stable walking is possible and safe use is possible.

It is a rear view which shows one Embodiment of the walking aid which concerns on this invention. It is a side view which shows one Embodiment of the walking aid which concerns on this invention. It is a principal part enlarged view. It is a rear view which shows an example of implementation of a right-and-left holding member. It is a top view which shows an example of implementation of a right-and-left holding member. It is principal part sectional drawing. It is principal part sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front wheel 2 Front leg rod 3 Rear wheel 4 Rear leg rod 5 Connecting member 6 Side frame member 8 Left and right holding member 9 Reinforcing member
20 Lock member
20a Lock pin
22 Elastic member
24 Left swing part
25 Right swing part
26 Left boss board
26a 1st positioning hole
27 Right boss board
27a Second positioning hole

Claims (2)

A pair of left and right front leg rods (2) (2) having the front wheels (1) and (1) at the lower ends, and a pair of left and right rear leg rods (4) and (4) having the rear wheels (3) and (3) at the lower ends, Is pivotally attached to the upper part so that it can be folded back and forth, and the pair of left and right front leg rods (2) and (2) are connected so that they can be folded right and left with connecting members (5) and (5) that are pivotally connected in an X-shape. In a walking aid that can be folded back and forth and left and right,
Left and right bosses having left and right holding members (8) pivotally connected to each of the connecting members (5) and (5) and foldable in the center, the left and right holding members (8) forming a first positioning hole (26a) The connecting member (5) comprises a left swinging member (24) having a board (26) and a right swinging member (25) having a right boss board (27) forming a second positioning hole (27a). In the unfolded state (5), the first positioning hole (26a) and the second positioning hole (27a) are concentric, and a lock member (which is always elastically biased by the elastic member (22)) ( 20) The lock pin portion (20a) is inserted into the first positioning hole (26a) and the second positioning hole (27a) in a skewered manner so that the connecting members (5) and (5) are unfolded. A walking aid that can be held. A pair of left and right front leg rods (2) (2) having the front wheels (1) and (1) at the lower ends, and a pair of left and right rear leg rods (4) and (4) having the rear wheels (3) and (3) at the lower ends, Is pivotally attached to the upper part so that it can be folded back and forth, and the pair of left and right front leg rods (2) and (2) are connected so that they can be folded left and right with connecting members (5) and (5) pivoted in an X-shape. A walking aid that can be foldable in the front-rear and left-right directions, and is provided with a side frame member (6) that is slidably connected to the front leg rod (2) and is pivotally coupled to the rear leg rod (4). And
Each of the connecting members (5) and (5) has a left and right holding member (8) which is pivotally connected to each other and can be folded at the center, and the left and right holding member (8) and the side frame member (6) are pivoted. It has a reinforcing member (9) to be tied, and the reinforcing member (9) is formed in a dogleg shape or a curved shape in a direction approaching the front leg rod (2) in a plan view when deployed. A walking aid.

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