Patent CA1126148A successfully refreshed from Google Patents.
CA1126148A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Lumbar support
Assignee: Mansell Engineering Ltd
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Filing: 1980-01-09
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Granted: 1982-06-22
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Expires: 2000-01-09
Abstract
Abstract ABSTRACT OF THE DISCLOSURE An adjustable body support member to provide adjustable support in a chair, bed or the like. The body support member includes a spring with opposite ends connected to a guide member and to a connecting member respectively. The connecting member is adjustably mounted on the connecting member by adjustment means so that the spacing between the ends of the spring may be varied to give a variable support in the chair, bed or the like.
Inventors
- 👤 Ivor Mansell
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-05 16:23
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/64; B60N2/66; B60N2/667; B60N2/6673
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
An adjustable body support member for attachment to a body support system comprising an elongate guide member having attachment points for attachment to said body support system, a connecting member movably mounted on said guide member, adjustment means operable to move said connecting member rela-tive to said elongate guide member and a resilient pressure applying member having one end connected to said connecting member and another end supported by said guide member at a location spaced from said connecting member, whereby operation of said adjustment means varies the spacing between said one end and said other end of said pressure applying means to adjust the pressure applied.
Claim 2
Dependent Claim
107 words
An adjustable body support member for attachment to a body support system comprising an elongate guide member having attachment points for attachment to said body support system, a connecting member movably mounted on said guide member, adjustment means operable to move said connecting member rela-tive to said elongate guide member and a resilient pressure applying member having one end connected to said connecting member and another end supported by said guide member at a location spaced from said connecting member, whereby operation of said adjustment means varies the spacing between said one end and said other end of said pressure applying means to adjust the pressure applied.
Claim 3
Dependent Claim
54 words
An adjustable body support member according to claim 1 wherein said other end of said resilient pressure applying means is connected to a second connecting member and said adjustment means is operable upon both said connecting members to produce equal and opposite incremental movements of said connecting members relative to said elongate guide member.
Claim 4
Dependent Claim
42 words
An adjustable body support member according to claim 1 or 2 wherein said adjusting means includes a pair of co-operating threaded members, one of which is supported by said connecting member and the other of which is supported by said guide member.
Claim 5
Dependent Claim
42 words
An adjustable body support member according to claim 1 wherein said guides member is hollow and said adjusting means includes a threaded rod extending at least partially along said guide member and rotatably supported by said guide member at one end thereof.
Claim 6
Dependent Claim
45 words
An adjustable body support member according to claim 4 wherein said adjusting means further includes a nut non-rotably secured to said connecting member and engagable with said threaded rod whereby rotation of said rod induces movement of said connecting member relative to said guide member.
Claim 7
Dependent Claim
37 words
An adjustable body support member according to claim 5 wherein said connecting member includes stop means engagable with said guide member and operable to inhibit rotational move-ment of said connecting member upon rotation of said threaded rod.
Claim 8
Dependent Claim
25 words
A body support member according to anyone of claims 4, 5, and 6 wherein said connecting member is slidingly disposed within said elongate guide member.
Claim 9
Dependent Claim
69 words
An adjustable body support member according to claim 4 wherein said other end of said pressure applying means is supported on said guide member by a second connecting member, said threaded rod having a pair of threaded portions of opposite hand, said members being opperatively associated with respective threaded portions whereby rotation of said threaded rod induces equal and opposite movement of connecting members relative to said guide members.
Claim 10
Dependent Claim
31 words
An adjustable body support according to claim 8 wherein said connecting members are slidingly received within said elongate guide member and co-operate therewith to inhibit rotation relative to said guide member.
Claim 11
Dependent Claim
32 words
An adjustable body support member according to claim 1, 4 or 8 wherein said resilient pressure applying means is formed from a wire of resilient material bent into a generally sinusoidal shape.
Claim 12
Dependent Claim
28 words
An adjustable body support member according to claim 4, or 8 wherein said adjusting means includes a manually oper-able member operable to cause rotation of said threaded rod.
Claim 13
Dependent Claim
32 words
An adjustable body support member according to any one of claims 1, 4 or 8 wherein said attachment means permit adjust-ment of said body support member relative to said body support system.
Claim 14
Dependent Claim
93 words
An adjustable body support member for a body support system, said body support member comprising a resilient pres-sure applying member and a support means to support distal ends of said resilient pressure applying means at spaced locations, said support means including a connecting member connected to one of said distal ends, adjustment means to adjust the position of said connecting member on said support means and guide means to guide said connecting member along a predetermined path, so that upon operation of said adjustment means the distance between said spaced locations is varied.
Claim 15
Dependent Claim
93 words
An adjustable body support member for a body support system, said body support member comprising a resilient pres-sure applying member and a support means to support distal ends of said resilient pressure applying means at spaced locations, said support means including a connecting member connected to one of said distal ends, adjustment means to adjust the position of said connecting member on said support means and guide means to guide said connecting member along a predetermined path, so that upon operation of said adjustment means the distance between said spaced locations is varied.
References Cited (Backward Citations)
No citation records indexed.
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