CN201019980Y

CN201019980Y - Roller walking aid

Info

Publication number: CN201019980Y
Application number: CNU2006201478613U
Authority: CN
Inventors: 丹尼尔·赛思·迈耶斯; 克里斯蒂安·博阿尔
Original assignee: AMG Medical Inc
Current assignee: AMG Medical Inc
Priority date: 2006-11-27
Filing date: 2006-11-27
Publication date: 2008-02-13
Anticipated expiration: 2016-11-27

Abstract

The utility model relates to a walk assisting device that helps an individual to walk and can be modified into a wheel-type transmission chair temporarily, and comprises a frame structure. The frame structure comprises two front legs and two rear legs arranged on the rotary wheels. A seat is connected with the frame structure, and the backrest of the seat is selectively arranged at the front position to adapt to the situation that a patient sits backwards, or at the rear position to adapt to the situation that a patient sits forwards. A foot pedal component is selectively connected with the frame structure, and so arranged as to rotate around a first rotating axial line and a second rotating axial line between the folding position and the spreading position.

Description

Roller walking aid

Technical field

The present invention relates to roller walking aid (rolling walker), relate more specifically to convert to the roller walking aid of transportation chair temporarily.

Background technology

Roller walking aid or wheeled walker are by the old people and/or be not extensive use of by other people of just walking difficulty of walking aid (walking aid).Roller walking aid has a pair of handle (hand grip) that is installed in the framework on four rolling or the wheel and extends back usually, and described handle is gripped to provide support when walking by user.Roller walking aid allows user to stand in the handle rear and this walking aid that promotes forward on the ground and roll.Roller walking aid generally includes seated surface, has a rest with sitting posture thereby allow user usually foot to be shelved on the ground, and this requires user to turn round and sit down towards the rear, and this direction is opposite with the direction of advancing.When needing caregiver's (care giver) assistance, this sitting posture of roller walking aid can not be used for transporting user temporarily, because sit down towards the rear and between handle the time, the space between user and the caregiver is very little when user.In addition, traditional roller walking aid does not have to sit down at user and supports the required special-purpose foot support component of foot of user when transporting.

Therefore need a kind of roller walking aid, it provides the function of auxiliary people's walking and can convert wheeled transportation chair temporarily to.

Summary of the invention

A target of the present invention provides a kind of roller walking aid that can temporarily convert wheeled transportation chair to.

According to a scheme of the present invention, a kind of walking aid device that auxiliary individual moves that is used for is provided, it comprises a frame structure, this frame structure comprises: two forelegs, and it has substantially parallel relation, and each described foreleg has top and bottom, with two back legs, it has substantially parallel relation, and each described back leg has top and bottom, and the upper end of described back leg is connected to corresponding described foreleg.Provide and be used for along the roll device of this walking aid device of support surface.The seat is connected to this frame structure, and is extending between the described foreleg and between the described back leg.Dismountable backrest, its be suitable for optionally forwardly position (front position) be connected to foreleg or in the wings position (rear position) be connected to back leg.

According to another aspect of the present invention, a kind of walking aid device that auxiliary individual moves that is used for is provided, this walking aid device is convertible into the transportation chair and comprises: frame structure, and this frame structure is supported on the rotatable wheel, comprises two forelegs, it has substantially parallel relation, each described foreleg has top and bottom and two back legs, and it has substantially parallel relation, each described back leg has top and bottom respectively, and described back leg is connected to corresponding foreleg in the top.The seat is connected to this frame structure, and is extending between the described foreleg and between the described back leg.Backrest is connected to this frame structure, and is suitable for optionally being arranged on anterior position to be used for the situation to the recoil, perhaps is arranged on the situation of rear position to be used for sitting forward.Foot-operated assembly be connected to this frame structure and be suitable between folding position and expanded position, around parallel first pivot axis and second pivot axis.

With reference to following preferred embodiment, other schemes and the feature that the present invention may be better understood.

Description of drawings

With reference now to accompanying drawing,, these accompanying drawings exemplarily show the preferred embodiments of the present invention.In the accompanying drawing:

Fig. 1 is for being used for the axonometric chart of the mobile walking aid device of auxiliary individual according to an embodiment of the invention;

Fig. 2 is the axonometric chart of walking aid device that converts Fig. 1 of wheeled transportation chair to;

Fig. 3 is the partial perspective view of foot-operated assembly of frame structure that is connected to the walking aid device of Fig. 1, wherein shows the folded state of this foot-operated assembly with exploded view;

The cross section view that should ride assembly of Fig. 4 for cutting open along the 4-4 line of Fig. 3;

Fig. 5 is the partial perspective view of the foot-operated assembly of this walking aid device that converts wheeled transportation chair to as shown in Figure 2, wherein shows the deployed condition of this foot-operated assembly with exploded view;

The cross section view that should ride assembly of Fig. 6 for cutting open along the 6-6 line of Fig. 5;

Fig. 7 is the partial front elevation view that is used for the hinge means of foot-operated assembly shown in Figure 3; And

Fig. 8 is the cross section view of this hinge means of cutting open along the 8-8 line of Fig. 7, wherein shows to be merged in the device of this hinge means with the pivoting action that is used to limit this foot-operated assembly.

The specific embodiment

With reference to Fig. 1 and 2, generally represent walking aid device with Reference numeral 10, walking aid device generally is used as the roller walking aid that auxiliary individual as shown in Figure 1 moves, and it can be converted to wheeled transportation chair as shown in Figure 2 temporarily.Walking aid device 10 generally includes frame structure 12, and it has about the symmetric both sides of perpendicular (not shown), center.In order clearly to reach explanation easily, parts identical on each side of this walking aid device will only be identified on one of both sides.

Frame structure 12 comprises with substantially parallel relation and is arranged on two forelegs 14 on each side that each foreleg has upper end 16 and lower end 18 respectively.Foreleg 14 is preferably made by metal tube, and preferably vertically slight curving its lower end 18 and being provided with tilted alignment.

Frame structure 12 further comprises two back legs 20 that are essentially parallel relation, and each back leg has upper end 22 and lower end 24 respectively.Back leg 20 upper ends 22 preferably are connected to the upper end 16 of each foreleg 14 by the hinge means (not shown).Back leg 20 also is preferably to be made by metal tube.

Interconnect frame is preferably the folded frame member, and it is provided with two collapsible rod 26, and collapsible rod 26 is fastened to foreleg 14 and back leg 20 pivotly in each side of frame structure 12.Collapsible rod 26 is located at around the strut 28, and strut 28 laterally runs through frame structure 12 extensions and is pivotably connected to each collapsible rod 26.Therefore, to be preferably formed its side-looking be the structure of A shape to frame structure 12.Yet because collapsible, frame structure 12 can be folded into the packing state and be used for storage and/or transportation.

Roller, castor and/or trundle 30 rotatably are installed to the

lower end

18,24 of each foreleg 14 and back leg 20, are used to follow the usual practice as the support surface on ground and so on this walking aid device 10 that rolls.Two trundles 30 that are fixed to foreleg 18 preferably are fastened to vertical lower end 18 pivotly, make two little front vehicle wheels 30 can rotate 360 °, and this is known and do not further describe at this in the industry.

Frame structure 12 is reinforced by the crossbeam of preferably being made by

metal tube

32,34,36, thereby these crossbeams laterally run through the both sides interconnection of frame structure 12 extensions with this frame structure.Particularly, crossbeam 32 is directly connected to the lower end 18 of respective front leg 14 at its opposed end by for example securing member (not shown), and extends between foreleg 18.Crossbeam 34 is preferably U-shaped, and the intermediate portion is connected to respective front leg 14 by a pair of carriage 38.Carriage 38 can be made or can be formed into sleeve by pipe a bit of, and this sleeve for example is connected to foreleg 18 and limits the hole (not shown) that extends through respective brackets 38 by welding.Corresponding carriage 38 is inserted from carriage 38 lower ends in the two ends of U-girder 34, and is fixed to carriage 38 by the securing member (not shown).The end that is noted that U-girder 34 only is received half degree of depth in the installing hole of carriage 38, so the top of the installing hole in each carriage 38 still can be used for ccontaining tubular connection member in wherein.

Crossbeam 36 is preferably U-shaped, is connected to back leg 20 by a pair of carriage 40, and its connected mode is similar to the mode that crossbeam 34 is connected to foreleg 14, therefore no longer repeats its description at this.

The seat 42 that is arranged on the frame structure 12 is extending between the foreleg 14 and between the back leg 20, and is supported on the crossbeam 34,36.Preferably, seat 42 is pivotably connected to one of crossbeam 34,36 (for example being connected to front beam 34) and removably seat 42 is shelved on another crossbeam (for example rear cross beam 36), make seat 42 to pivot, pivot towards foreleg 14 when frame structure 12 needs to fold, to allow back leg 20 around one of crossbeam 34,36.Crossbeam 34,36 is arranged to have substantially the same height with respect to support surface, makes seat 42 shelve with substantially horizontal orientation.Cloth bag 43 is located at the below, seat by for example it being tied to

respective girders

34,36 alternatively.

Frame structure 12 is provided with a pair of handle 44.Each handle 44 is preferably made by metal tube, and it can be contained in the upper end 16 of tubulose foreleg 14 slidably, the feasible height that can adjust handle 44 according to the user requirement with respect to support surface.Handle 44 can be by various blocking device (not shown) lockings in the desired position, and this is known in the industry, will be not in this description.Each handle 44 comprises and is bent and forms the upper end of an angle with the tilted alignment of foreleg 14, thereby forms grip part 46.Be connected with bar assembly 48 on the grip part 46, bar assembly 48 starts the brake 50 of the lower end 24 that is installed in corresponding back leg 20 by the cable (not shown).Bar assembly 48 and brake 50 are conventional, therefore will no longer at length further describe.

Backrest 52 removably and in as shown in Figure 1 anterior position or in rear position as shown in Figure 2 optionally is installed on the frame structure 12.Backrest 52 is preferably made by metal tube, has the top 54 of extending between two arms 56; These two arms 56 are configured to settle top 54, thus the mode that will take a seat according to user at the backrest 52 and back that is sitting in the user on the seat 42 is cosily supported in position the or when position is connected to frame structure 12 in the wings forwardly.Preferably, use bedding and padding to wrap up this top 54.

Particularly, when backrest 52 was arranged on as shown in Figure 1 anterior position, the end of the arm 56 of backrest 52 was placed in the top that is defined in the installing hole in the corresponding carriage 38.Can select securing member further backrest 52 is fastened on appropriate position.Do not need to be dismantled continually different with crossbeam 34 is connected to backrest 38, backrest 52 is connected to carriage 38 not only needs reliability but also need to be convenient to dismounting.Therefore, preferably, with the ccontaining enough length of the link of arm 56 in corresponding carriage 38, thereby guarantee backrest 52 is connected to carriage 38 securely and need not extra clamp device.

Backrest 52 can be dismantled from carriage 38 easily, and can be connected in a similar fashion to the respective brackets 40 that is positioned on the back leg 20, thereby realizes seat backward (rear seatingposition) as shown in Figure 2.When backrest 52 was arranged at the rear position, according to handle 44 controlled positions, the top 54 of backrest 52 can be extended between the grip part 46 of handle 44 and bar assembly 48.Therefore, the top 54 of backrest 52 should form appropriate size and arm 56 should correspondingly be arranged to avoid the top 54 of backrest 52 and the interference between handle 44 and the bar assembly 48.

In addition referring to figs. 1 to Fig. 7, folding foot-operated assembly 58 is connected to frame structure 12 and is suitable for pivoting around first pivot axis 60 and second pivot axis, 62 (see figure 2)s between folding position shown in Figure 1 and expanded position shown in Figure 2, and wherein first pivot axis 60 and second pivot axis 62 are parallel to each other and laterally run through frame structure 12 and extend.Foot-operated assembly 58 is preferably made by the tubular metal material.According to one embodiment of present invention, foot-operated assembly 58 comprises a pair of arm 64, and each arm has first end 66 and the second end 68 respectively.The first end 66 of each arm 64 preferably is pivotally mounted to a foreleg 14 by hinge means 70, and is suitable for pivoting around first pivot axis 60.Each end that preferably is set to the foot-driven lever 72 of U-shaped preferably is pivotably connected to the second end 68 of respective arms 64 by hinge means 74, and is suitable for pivoting around second pivot axis 62.

Arm 64 is being bent to certain angle near the position of its first end 66, the angle between the vertical lower end 18 that this angle is similar to foreleg 14 basically and the main part of inclination.When the folding position, as Fig. 1, Fig. 3, shown in Figure 4, the arm 64 of foot-operated assembly 58 pivots around first pivot axis 60, makes arm 64 extend upward along the akin orientation of orientation with the foreleg 14 that tilts.U-shaped foot-driven lever 72 suspends in midair downwards from the second end 68 of upwardly extending arm 64, preferably pivots to cloth bag 43 slightly, and for example is releasably connected to cloth bag 43 by strip fastener 76.Therefore, when foot-operated assembly 58 placed this folding position, foot-operated assembly 58 partly was hidden in the frame structure 12.

When foot-operated assembly 58 was arranged at as Fig. 2, Fig. 5, expanded position shown in Figure 6, arm 64 extended forward from frame structure 12, and U-shaped foot-driven lever 72 suspends in midair downwards from the second end 68 of the arm 64 of extension forward.Foot-driven lever 52 be arranged at above the ground and with ground away from certain distance, thereby allow walking aid device 10 to move and can not interfere along ground.Hinge means 70 preferably the first ends 66 of arm 64 are pivotably connected to foreleg 14 one of them, preferably be connected to foreleg 14 in position a little more than crossbeam 32, make when arm 64 when substantially horizontal direction is extended forward, near the part of the arm 64 the first end 66 is shelved on the crossbeam 32, and it is clearly shown that in Fig. 6 more.In this structure, the foot of user is passed to frame structure 12 to the load of foot-driven lever 72 by crossbeam 32 and hinge means 74.As Fig. 3 and shown in Figure 5, crossbeam 32 preferably has two end (not shown) that strengthen, shelve with support corresponding arm 64 thereon by the sleeve part around it.The U-shaped foot-driven lever preferably includes loose fit ground one section sleeve (not shown) around it, thereby provides the comfortable parts of shelving for the foot of user.Hinge means 70 and 74 is similar, and preferably includes the device that is used to limit the pivoting action of riding assembly 58.

According to one embodiment of the invention, hinge means 70 (and hinge means 74) is shown in Fig. 7 and Fig. 8.Hinge means 70 comprises a pair of hinge member 701 and 702, described hinge member is fixed to the corresponding lower end 18 of a foreleg 14 and the second end 66 of an arm 64, and can rotate relative to one another around bolt 703, wherein bolt 703 is passed in the centre bore extension of qualification in the hinge member 701,702 to be fixed to foreleg 14.Each hinge member 701,702 has the flat end 704,705 that has axial projections parts 706,707.Each protrusion member 706,707 has occupied the circumferential section of flat end 704 or 705, thereby allows hinge member 701,702 at certain angle scope internal rotation or be switched to two protrusion members 706,707 and carry out position contacting at its either side.In the present embodiment, each protrusion member 706,707 has occupied about 1/3 circumferential section of corresponding flat end 704 or 705, but makes the pivoting angle scope of representing with A in Fig. 8 be restricted to about 120 °.

Be noted that by selecting the circumference yardstick of protrusion member 706,707, can obtain any required range of pivot.Also to point out, for foot-operated assembly 58 can be pivoted between required orientation (the folding and expanded position that illustrates respectively as Fig. 1 and Fig. 2), when hinge means is fixed to accordingly such as foreleg 18 and arm 64, perhaps during link such as arm 64 and U-shaped foot-driven lever 72, the circumferential position of each protrusion member 706,707 should be appropriately determin.

In use, frame structure 12 full extension under its fold storage state is constructed thereby form the stable A shape that can promote and roll on ground or other support surface.When walking aid device 10 was used as the roller walking aid that is used for auxiliary individual's walking, backrest 52 placed anterior position, and foot-operated assembly 58 is arranged at the folding position and is fixed to cloth bag 43, as shown in Figure 1.Alternatively, in case of necessity, this backrest 52 can be from frame structure 12 whole removing.User is caught the grip part 46 of handle 44, and promotes this walking aid device 10 at its rear, on stayed surface.When user was wanted rest, user can be pushed down the wheel 30 of bar assembly to check the rear.Bar assembly 48 preferably has the function of pinning braking state.When wheel 30 in the wings was locked in braking state, user can be turned round and be sitting on the seat 42 towards the rear.User can lean to the backrest 52 that places anterior position.

When this walking aid device 10 by temporarily as wheeled transportation chair the time, backrest 52 is pulled down from carriage 38, the arm 56 of backrest 52 is inserted in the carriage 40 on the back leg 20 subsequently, forms the backrest 52 that is positioned at the rear position thus.Extend between 42 backs, seat, two handles 44 on the top 54 of backrest 52, as shown in Figure 2.Strip fastener 76 on the cloth bag 43 is released, and (as shown in Figure 1) is switched to the expanded position (see figure 2) from the folding position around each

pivot axis

60,62 thereby allow foot-operated assembly 58.At expanded position, U-shaped foot-driven lever 72 suspends in midair downwards from the arm 64 that extends forward, and with support surface away from certain distance.Axial projections parts 706,707 by hinge means 70 and/or by preventing that arm 64 from further carrying out the crossbeam 32 of pivoting action around pivot axis 60 prevent foot-operated assembly 58 excessive pivotals and cause contact between U-shaped foot-driven lever and the ground.User can be sitting in to face forward on the seat 42 subsequently, and his/her foot is shelved on the U-shaped foot-driven lever 72, and the walking aid device 10 that is temporarily converted to wheeled transportation chair now can be promoted on ground or other support surface by the caregiver in the walking of walking aid device 10 rears or roll.

Foregoing description only is exemplary, those skilled in the art will appreciate that under the situation that does not break away from disclosed scope of the present invention to change described embodiment.For example, the present invention is applicable to the walking aid device with the frame structure that is different from described frame structure, and for example this frame structure is not collapsible, and/or does not present common A shape structure.Handle, brakes and wheel can be configured to be different from the form of described embodiment, and cloth bag is optional.Those skilled in the art are after reading present disclosure, and other other remodeling that drop in the scope of the invention are conspicuous, and these retrofit within the scope of the appended claims.

Claims

1. one kind is used for the walking aid device that auxiliary individual moves, and it is characterized in that, comprising:

Frame structure, this frame structure comprises:

Two forelegs, it has substantially parallel relation, each described foreleg have top and bottom and

Two back legs, it has substantially parallel relation, and each described back leg has top and bottom, and the upper end of described back leg is connected to corresponding described foreleg;

Be used for along the device of this walking aid device of support surface rolling transportation;

The seat, it is connected to this frame structure, and is extending between the described foreleg and between the described back leg; And

Dismountable backrest, its be suitable for optionally forwardly the position be connected to foreleg or in the wings the position be connected to back leg.

2. walking aid device as claimed in claim 1 is characterized in that, this frame structure comprises: first pair of carriage, and it is fixed to corresponding described foreleg, in order to this backrest is received in this anterior position place; And second pair of carriage, it is fixed to corresponding described back leg, in order to this backrest is received in this place, rear position.

3. walking aid device as claimed in claim 2 is characterized in that, this backrest comprises: with respect to the top of this frame structure horizontal expansion, and two arms that optionally are supported in described first pair of carriage or described second pair of carriage.

4. walking aid device as claimed in claim 3, it is characterized in that, this frame structure comprises a pair of handle, each described handle is connected to the upper end of a described foreleg respectively by adjustable ground, when this backrest was in this rear position, the height of described handle can be under the situation on this top of not interfering this backrest and is conditioned.

5. walking aid device as claimed in claim 1 is characterized in that, described being used for comprises four wheels along the device of this walking aid device of support surface rolling transportation, and each described wheel is connected to the lower end of corresponding described foreleg and described back leg.

6. walking aid device as claimed in claim 1, it is characterized in that, this walking aid device comprises folding foot-operated assembly, it is connected to the lower end of described foreleg, when this walking aid device is used as walking aid, should optionally be arranged at the folding position by foot-operated assembly, perhaps when this walking aid device was used as the transportation chair, this foot-operated assembly optionally was arranged at expanded position to support the foot of user.

7. walking aid device as claimed in claim 6, it is characterized in that, should comprise a pair of arm by foot-operated assembly, each described arm has first end and the second end, the first end of described arm is pivotally mounted to corresponding described foreleg and is suitable for around laterally running through first pivot axis that this frame structure is extended, the second end feet treadle of described arm.

8. walking aid device as claimed in claim 7 is characterized in that this foot-driven lever is configured to U-shaped, and is pivotably connected to the second end of described arm, and is suitable for around second pivot axis that is arranged essentially parallel to this first pivot axis.

9. one kind is used for the walking aid device that auxiliary individual moves, and this walking aid device is convertible into the transportation chair, it is characterized in that, comprising:

Frame structure, it is supported on the rotatable wheel, and comprises:

Two back legs, it has substantially parallel relation, and each described back leg has top and bottom;

The seat, it is connected to this frame structure;

Backrest, it is connected to this frame structure, and is suitable for optionally being arranged on anterior position to be used for the situation to the recoil, perhaps is arranged in the situation of rear position to be used for sitting forward; And

Foot-operated assembly, it is connected to this frame structure, and be suitable between folding position and expanded position, around first pivot axis and second pivot axis parallel to each other.

10. walking aid device as claimed in claim 9, it is characterized in that, should comprise a pair of arm by foot-operated assembly, each described arm has first end and the second end, and the first end of described arm is pivotably connected to the lower end of described foreleg and is suitable for around this first pivot axis.

11. walking aid device as claimed in claim 10, it is characterized in that, when this foot-operated assembly is in this folding position, the orientation that should ride the described arm of assembly is similar to the orientation of described foreleg basically, and wherein when this foot-operated assembly was in this expanded position, described arm extended forward from this frame structure.

12. walking aid device as claimed in claim 11 is characterized in that, this foot-operated assembly comprises foot-operated parts, and its second end that is pivotably connected to described arm is to center on this second pivot axis.

13. walking aid device as claimed in claim 12 is characterized in that, when this foot-operated assembly was in folded state or deployed condition, these foot-operated parts suspended in midair downwards from the second end of described arm.

14. walking aid device as claimed in claim 9 is characterized in that, this foot-operated assembly comprises: first hinge means, and it has and is used for this foot-operated assembly is limited in device in first predetermined angular range around first pivoting action of this first pivot axis; And second hinge means, it has and is used for this foot-operated assembly is limited in device in second predetermined angular range around second pivoting action of this second pivot axis.