US4300707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined rucksack frame and chair
Assignee: Individual
•
Filing: 1979-08-24
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Granted: 1981-11-17
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Expires: 1999-08-24
Abstract
Abstract There is provided a device which may be used as a rucksack frame in a first functional position and as a chair with a backrest in a second functional position. The device comprises a first and a second frame member with mutually parallel side parts of which the side parts of the first frame member have end portions which are hingedly connected to respective side parts of the second frame member at a distance from the ends of the latter frame member so that the side parts of the frame members may be disposed parallel with and at right angles to each other, respectively. At the end opposite to the articulated end portions the first frame member has a support portion projecting from the side parts a distance essentially corresponding to the distance between the hinge connections and the outer end of an end support portion of the second frame member, the support portions cooperating as chair supports in said second functional position of the device.
Inventors
- 👤 Per Kjaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:17
CPC Classifications
A; A45; A45F; A45F4/00; A45F4/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
A device usable in a first functional position as a rucksack frame and usable in a second functional position as a chair with a backrest, the device comprising: first and second tubular frame members, each frame member having an end support portion and parallel side parts secured to the end support portion and having respective end portions spaced from the associated end support portion; hinge means having hinge connections for articulating said end portions of the side parts of the first frame member to respective side parts of the second frame member at locations intermediate the ends of said side parts of said second frame member, whereby the side parts of said first and said second frame members are capable of being disposed parallel to and at right angles to each other, respectively; said end support portion of said first frame member projecting at an angle from its associated side parts by a distance essentially corresponding to the distance between said hinge connections and an outer edge of said end support portion of the second frame member; and the frame members being provided with supporting bands stretched between the side parts of each frame member in the regions between the hinge connections and the end portions of the side parts.
Claim 2
Independent Claim
210 words
A device usable in a first functional position as a rucksack frame and usable in a second functional position as a chair with a backrest, the device comprising: first and second tubular frame members, each frame member having an end support portion and parallel side parts secured to the end support portion and having respective end portions spaced from the associated end support portion; hinge means having hinge connections for articulating said end portions of the side parts of the first frame member to respective side parts of the second frame member at locations intermediate the ends of said side parts of said second frame member, whereby the side parts of said first and said second frame members are capable of being disposed parallel to and at right angles to each other, respectively; said end support portion of said first frame member projecting at an angle from its associated side parts by a distance essentially corresponding to the distance between said hinge connections and an outer edge of said end support portion of the second frame member; and the frame members being provided with supporting bands stretched between the side parts of each frame member in the regions between the hinge connections and the end portions of the side parts.
Claim 3
Dependent Claim
49 words
A device according to claim 1, wherein each frame member consists of an essentially U-shaped stirrup having a pair of legs and a web portion, the legs of said stirrups constituting said side parts of the frame members and the web portions of said stirrups constituting said support portions.
Claim 4
Dependent Claim
51 words
A device according to claim 2, wherein said end support portion of said first frame member is formed in that the legs of said stirrup, at a distance from said web portion, are bent at a substantially right angle in a plane perpendicular to the pivot axis of said hinge connections.
Claim 5
Independent Claim
51 words
A device according to one of claims 2, 3 or 1, wherein said hinge connections comprise bifurcated pivot pin holders attached to respective end portions of the side parts of said first frame member and extending parallel to each other at an angle to the longitudinal axis of said side parts.
Claim 6
Dependent Claim
25 words
A device according to claim 1 wherein said end support portions of said frame members are provided with holders for a pair of carrier straps.
Claim 7
Dependent Claim
36 words
A device according to claim 5, wherein said end support portion of said second frame member is provided with a transversely extending rod which is provided at its central portion with means for carrier strap attachment.
Claim 8
Dependent Claim
32 words
A device according to claim 1, wherein said end support portions of said frame members in the first functional position of said device are positioned at opposite ends of the rucksack frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |