Patent CA1265733A successfully refreshed from Google Patents.
CA1265733A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Mobility support device
Assignee: Canhart Industries Ltd
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Filing: 1986-07-18
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Granted: 1990-02-13
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Expires: 2006-07-18
Abstract
Abstract A B S T R A C T MOBILITY SUPPORT DEVICE A mobile support device for a handicapped person and rollable on a reaction surface, the mobile support device is disclosed comprising first and second substantially parallel planar frame sections oriented in spaced relationship to define a region therebetween, the lower portion of said frame sections defining a base, a back support portion spanning the region and coupled with the first and second frame portions, a seat spanning the region with at least a front portion thereof pivotable relative to said first and second frame portions and a wheel assembly mounted on said base so as to engage the reaction surface.
Inventors
- 👤 J.R. Kingsley Ward
- 👤 Kevin R. Lunau
- 👤 John H. Royce
- 👤 Jeffrey D. Stringer
- 👤 Adele E. Ward
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-07 16:49
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/04; A61G; A61G5/00; A61G5/10; A61G5/1094; A61G5/12; A61G5/125; A61G5/128; A61H2003/002; A61H2003/004; A61H2003/046; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1614; A61H2201/1628; A61H2201/1633
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
337 words
A mobile support device for a handicapped person and rollable along a reaction surface, the mobile support device comprising: first and second longitudinally extending frame sections oriented in spaced relationship, each of said frame sections having a lower portion and a front portion; joining means for joining said first and second frame sections together; a back support portion extending between and coupled with the first and second frame sections; a seat portion secured to and extending between the first and second frame sections and centrally disposed above said lower portions; and a wheel assembly mounted on said lower portions so as to engage the reaction surface, said wheel assembly including a pair of front caster wheels, a pair of rear caster wheels and a pair of central wheels, each central wheel having a fixed transverse axis of rotation and being positioned intermediate said front and rear caster wheels to inhibit transverse motion, each of said frame sections carrying one of the front caster wheels, one of said central wheels and one of said rear caster wheels, said front and rear caster wheels and said central wheel on each of said frame sections being substantially aligned in parallel with a central longitudinal axis of said mobility support device, each of said wheels having a lowermost tangent lying in a common plane, said spaced frame sections defining a free region in front of and beneath said seat portion through which a user's feet can reach said reaction surface and provide a propelling force to said mobility support device, said wheels being disposed outside said free region, and said wheel assembly constituting means to inhibit rocking of said mobile support device about said central wheels so that contact between all of said wheels with said reaction surface is maintained, the front portions of said frame sections being spaced from one another and said joining means being arranged so that unrestricted access is provided for the handicapped person to said seat portion, said back support portion and to said free region.
Claim 2
Dependent Claim
337 words
A mobile support device for a handicapped person and rollable along a reaction surface, the mobile support device comprising: first and second longitudinally extending frame sections oriented in spaced relationship, each of said frame sections having a lower portion and a front portion; joining means for joining said first and second frame sections together; a back support portion extending between and coupled with the first and second frame sections; a seat portion secured to and extending between the first and second frame sections and centrally disposed above said lower portions; and a wheel assembly mounted on said lower portions so as to engage the reaction surface, said wheel assembly including a pair of front caster wheels, a pair of rear caster wheels and a pair of central wheels, each central wheel having a fixed transverse axis of rotation and being positioned intermediate said front and rear caster wheels to inhibit transverse motion, each of said frame sections carrying one of the front caster wheels, one of said central wheels and one of said rear caster wheels, said front and rear caster wheels and said central wheel on each of said frame sections being substantially aligned in parallel with a central longitudinal axis of said mobility support device, each of said wheels having a lowermost tangent lying in a common plane, said spaced frame sections defining a free region in front of and beneath said seat portion through which a user's feet can reach said reaction surface and provide a propelling force to said mobility support device, said wheels being disposed outside said free region, and said wheel assembly constituting means to inhibit rocking of said mobile support device about said central wheels so that contact between all of said wheels with said reaction surface is maintained, the front portions of said frame sections being spaced from one another and said joining means being arranged so that unrestricted access is provided for the handicapped person to said seat portion, said back support portion and to said free region.
Claim 3
Dependent Claim
28 words
A mobile support device as claimed in claim 1 further comprising a releasable restraint means disposed adjacent said seat and coupled to the first and second frame sections.
Claim 4
Dependent Claim
22 words
A mobile support device as claimed in claim 2 wherein said seat is pivotal relative to said first and second frame sections.
Claim 5
Dependent Claim
20 words
A mobile support device as defined in claim 3 wherein said seat is pivotal to a forwardly downwardly inclined position.
Claim 6
Dependent Claim
20 words
A mobile support device as defined in claim 4 wherein said seat is pivotal to a rearwardly downwardly inclined position.
Claim 7
Dependent Claim
28 words
A mobile support device as defined in claim 1 further comprising adjustment means to adjust the height of said seat relative to said first and second frame sections.
Claim 8
Dependent Claim
48 words
A mobile support device as defined in claim 6 wherein said seat includes a seat frame movable relative to said frame sections and said adjustment means includes guide means engaged with said seat frame to guide said seat frame along a predetermined path relative to said frame sections.
Claim 9
Dependent Claim
32 words
A mobile support device as defined in claim 7 wherein said seat frame includes a pivot element defining an axis of rotation of said seat and movable relative to said guide means.
Claim 10
Dependent Claim
29 words
A mobile support device as defined in claim 8 wherein said adjustment means includes a rack and pinion arrangement to displace said pivot element relative to said guide means.
Claim 11
Dependent Claim
41 words
A mobile support device as defined in claim 9 wherein said rack and pinion arrangement includes a rack element fixed to said pivot element and a pinion element rotatably coupled with said guide means for displacing said rack element relative thereto.
Claim 12
Dependent Claim
27 words
A mobile support device as defined in claim 1 wherein each of said first and second frame sections have an upper region defining an arm support portion.
Claim 13
Dependent Claim
23 words
A mobile support device as defined in claim 11 wherein one of said arm support portions is separable from the respective frame section.
Claim 14
Dependent Claim
24 words
A mobile support device as defined in claim 11 wherein one of said arm support portions is pivotal relative to the respective frame section.
Claim 15
Dependent Claim
26 words
A mobile support device as defined in claim 11 wherein said restraint means includes a tray element releasably joined to one of said arm support portions.
Claim 16
Dependent Claim
20 words
A mobile support device as defined in claim 14 wherein said tray element is contoured to define a hand grip.
Claim 17
Dependent Claim
25 words
A mobile support device as defined in claim 14 wherein said tray extends along one of said arm support portions to define an arm rest.
Claim 18
Dependent Claim
89 words
A mobile support device as defined in claim 1 further comprising braking means for said wheel assembly, said braking means including a pair of mechanisms, each of which has a first link pivotally mounted to one of said lower portions, said first link pivotally coupled to a second link extending along said lower portion and terminating at a pivotal connection with a third link, said third link pivotally coupled to said lower portion and having a one end joined to a brake pad located adjacent a corresponding central wheel.
Claim 19
Dependent Claim
44 words
A mobile support device as defined in claim 17 wherein a displacement lever is attached to each of said first links, said first links being rotatably coupled along a common pivot axis so as to be responsive to either one of said displacement levers.
Claim 20
Dependent Claim
53 words
A mobile support device as defined in claim 1 wherein each of the first and second frame sections has an upper portion in spaced and substantially parallel and horizontal relationship with said lower portion and a central portion joining one end of the upper portion with an opposite end of the lower portion.
Claim 21
Dependent Claim
70 words
A mobile support device as defined in claim 19 wherein said central portion is formed from first and second frame elements, the first frame element being joined to the rear end of the upper frame portion and the second frame element being joined to the front end of the lower portion, the central frame elements each having a free end which is interconnectable with the other in a telescoping manner.
Claim 22
Dependent Claim
38 words
A mobile support device as defined in claim 19, further comprising outrigging means releasably mounted to said lower frame portions to extend outwardly therefrom and engage the reaction surface so as to improve the stability of the device.
Claim 23
Dependent Claim
24 words
A mobile support device as defined in claim 21 wherein the outrigging means is releasable from a retracted position to an outwardly extended position.
Claim 24
Dependent Claim
26 words
A mobile support device as defined in claim 22, further comprising trigger means to release the outrigging means from the retracted position to the extended position.
Claim 25
Dependent Claim
26 words
A mobile support device as defined in claim 23 wherein the trigger means is responsive to a rotation of the device about said central longitudinal axis.
Claim 26
Dependent Claim
49 words
A mobile support device as defined in claim 24, wherein the outrigging means further comprises a rod slidably engaged with a first housing biased outwardly therefrom to an extended position upon release of the outrigging means, said first housing being pivotally mounted to one of said lower frame portions.
Claim 27
Dependent Claim
20 words
A mobile support device as defined in claim 25 wherein the first housing means is biased to an extended position.
Claim 28
Dependent Claim
47 words
A mobile support device as defined in claim 26, wherein the trigger means includes a first latch releasable by a latch member oriented in close proximity with the reaction surface, so as to engage the reaction surface upon rotation of the device about the predetermined horizontal axis.
Claim 29
Dependent Claim
28 words
A mobile support device as defined in claim 27 wherein the trigger means includes a second latch means to release the rod upon release of the outrigging means.
Claim 30
Dependent Claim
31 words
A mobile support device as defined in claim 28 wherein the first latch means is pivoted on a second housing, while the second latch means is mounted on the first housing.
Claim 31
Dependent Claim
50 words
A mobile support device as defined in claim 29 wherein the first housing is pivotally mounted with respect to the second housing, the second housing defining an abutment to engage the second latch means upon arrival of the first housing at the extended position so as to release the rod.
Claim 32
Dependent Claim
19 words
A mobile support device as defined in claim 1 wherein said front portion is tiltable about a rear portion.
Claim 33
Dependent Claim
23 words
A mobile support device as defined in claim 31 wherein the rear portion is tiltable relative to said first and second frame portions.
Claim 34
Dependent Claim
31 words
A mobile support device as defined in claim 1, further comprising a foot support means extending forwardly of and respectively pivotally coupled with one of said first and second frame portions.
Claim 35
Dependent Claim
30 words
A mobile support device as defined in claim 33 wherein said foot rest has an extensible member and includes an adjustment mechanism to adjust the length of said extensible member.
References Cited (Backward Citations)
No citation records indexed.
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