Patent US2601733A successfully refreshed from Google Patents.
Patent EP0312969A2 successfully refreshed from Google Patents.
EP0312969A2
Expired / Lapsed
EP
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Adjustable frame wheelchair
Assignee: Mulholland Designs Inc
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Filing: 1988-10-17
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Granted: —
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Expires: 2008-10-17
Abstract
Abstract A wheelchair having opposing sideframes (12, 14) which comprise individual frame sections (20-23) which are connected by a longitudinally and angularly adjustable joint. The frame sections (20-23) include a fixed base section (20) connected to linear bar sections (21, 22, 23). The bar sections (21, 22, 23) are provided with lateral slots (24) containing slidable fasteners (25). Link elements (35) having fasteners (37) that engage the slidable fasteners (25) join together the bar sections (21, 22, 23). The joint is movable along the bar section slots and is rotatable about the link fasteners (37). Similarly, adjunct wheelchair assemblies may all be adjustably connected to the slidable fasteners (25) of selected frame bar sections. The sideframes (12, 14) can include side braces (41) and may be connected by laterally adjustable spacer bars (60-63).
Inventors
- 👤 Lawrence K. Mulholland
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 14:09
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1056; A61G5/1059; A61G5/08; A61G5/0808; A61G5/0816; A61G5/0825; A61G5/1062; A61G5/006; A61G5/107
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
66 words
A wheelchair having a seat, backrest and wheels, and characterized by: opposing adjustable sideframes supporting said seat, backrest and wheels, each sideframe comprising a base section having an elongated part with an outwardly extending leg part; and. frame bars adjustably connected to each other by link means and to said parts to form a support structure, said frame bars having slots which contain slidable bar fasteners.
Claim 2
Dependent Claim
66 words
A wheelchair having a seat, backrest and wheels, and characterized by: opposing adjustable sideframes supporting said seat, backrest and wheels, each sideframe comprising a base section having an elongated part with an outwardly extending leg part; and. frame bars adjustably connected to each other by link means and to said parts to form a support structure, said frame bars having slots which contain slidable bar fasteners.
Claim 3
Dependent Claim
21 words
The wheelchair of claim 1 wherein said link means comprises connector elements with link fasteners for engagement with said bar fasteners.
Claim 4
Dependent Claim
20 words
The wheelchair of claims 1 or 2 including attachment means for connecting a frame bar to each base section part.
Claim 5
Dependent Claim
25 words
The wheelchair of claim 2 wherein said frame bars have a quadrilateral cross-sectional shape and said slots extend longitudinally along opposing sides of said bars.
Claim 6
Dependent Claim
76 words
The wheelchair of any one of the preceding claims wherein said frame bars include an upright section, an upper section, a front section and a bottom section; said upright section extending upwardly from said leg part to the upper section, said upper section extending from said upright section to the front section, said front section extending from said upper section to the bottom section, said bottom section extending from said front section to the elongated part.
Claim 7
Dependent Claim
36 words
The wheelchair of claim 5 wherein said frame bars include a lower section extending downwardly from said leg part and including a brace means connecting said upper section to said base section or said lower section.
Claim 8
Dependent Claim
19 words
The wheelchair of any one of the preceding claims wherein said opposing sideframes are interconnected by a folding assembly.
Claim 9
Dependent Claim
20 words
The wheelchair of claim 5 wherein said folding assembly includes lateral adjustment means for varying the spacing between opposing sideframes.
Claim 10
Dependent Claim
19 words
The wheelchair of claim 7 including brace means interconnecting at least two of said frame bars on a sideframe.
Claim 11
Dependent Claim
24 words
The wheelchair of claim 9 wherein said folding assembly includes pivoted spacer bars having opposing outer ends secured to a respective sideframe brace means.
Claim 12
Dependent Claim
19 words
The wheelchair of claim 10 wherein said folding assembly includes strut means connecting a sideframe to a spacer bar.
Claim 13
Dependent Claim
33 words
The wheelchair of claims 10 or 11 wherein said upper section is provided with a seat keyway and said seat has opposing side edge seat engagement means for retention by said seat keyway.
Claim 14
Dependent Claim
50 words
The wheelchair of claims 10 or 11 wherein said backrest comprises a pair of backrest frame bars each having a backrest keyway and each being connected to a respective sideframe upper section and, a back support structure having opposing side edge back engagement means for retention by said backrest keyway.
Claim 15
Dependent Claim
47 words
The wheelchair of claim 13 wherein said backrest frame bars include lateral slots which contain slidable bar fasteners and each of said backrest frame bars are connected to a respective sideframe upper section by backrest link means that include link fasteners that engage said slidable bar fasteners.
Claim 16
Dependent Claim
57 words
A wheelchair having a seat, backrest and wheels supported by a framework, and characterised by: opposing spaced-apart sideframes constructed of a base section and frame bar sections, said sections assembled to form at least a three-cornered structure having a fixed angular corner with at least two angularly adjustable corners and including at least three longitudinally adjustable sides.
Claim 17
Dependent Claim
57 words
A wheelchair having a seat, backrest and wheels supported by a framework, and characterised by: opposing spaced-apart sideframes constructed of a base section and frame bar sections, said sections assembled to form at least a three-cornered structure having a fixed angular corner with at least two angularly adjustable corners and including at least three longitudinally adjustable sides.
Claim 18
Dependent Claim
60 words
A framework for a wheelchair, the framework supporting a seat, backrest and wheels and characterized by: opposing sideframes each comprising at least three discrete linear frame bar sections adjustably joined together in a selected angular and longitudinal orientation and, a base section having an elongated part and a leg part connected to at least one of said frame bar sections.
Claim 19
Dependent Claim
60 words
A framework for a wheelchair, the framework supporting a seat, backrest and wheels and characterized by: opposing sideframes each comprising at least three discrete linear frame bar sections adjustably joined together in a selected angular and longitudinal orientation and, a base section having an elongated part and a leg part connected to at least one of said frame bar sections.
Claim 20
Dependent Claim
37 words
The framework for a wheelchair of claim 16 wherein said frame bar sections include track means having slidable fasteners; and, link means jointing together said frame bar sections having link fasteners for engagement with said slidable fasteners.
Claim 21
Dependent Claim
22 words
A wheelchair framework constructed in part by an assembly of discrete linear frame bar sections interconnected by longitudinal and angular adjustable joints.
Claim 22
Dependent Claim
22 words
A wheelchair framework constructed in part by an assembly of discrete linear frame bar sections interconnected by longitudinal and angular adjustable joints.
Claim 23
Dependent Claim
16 words
The framework of claim 18 wherein said frame bar sections include track means having slidable fasteners.
Claim 24
Dependent Claim
25 words
The framework of claim 19 wherein said joints are formed with link means having link fasteners that engage corresponding slidable fasteners in said track means.
References Cited (Backward Citations)
No citation records indexed.
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