Land vehicles – Wheeled – Extensible
Patent
1997-09-23
1998-06-30
Camby, Richard M.
Land vehicles
Wheeled
Extensible
280 87021, 280657, 280 4738, B62B 302
Patent
active
057722340
ABSTRACT:
The present invention relates to a configuring frame for walker which comprises a pair of front tubes which has a S-shape configuration and being provided with a caster in the lower end. The upper end of the front tube is telescopically connected with a hand grip and which has a belt socket in the end portion. A back belt is bridged between the two belt sockets such that a backrest is formed. The middle portion of the front tube is disposed horizontally when the front tube is assembled. Those two front tubes is interconnected by means of a first traverse tube which is located adjacent to the caster and a second traverse tube which is located at the middle or horizontal portion of the front tubes. A pedal is pivotally mounted at the first traverse tube. And a pair of rear tubes and which has a horizontal portion and an inclined portion which extends downward and rearward. The end of the inclined portion is mounted with a caster. Those two rear tubes is interconnected by means of a chair bracket in the horizontal portions of the rear tubes. Those char bracket defines a mounting groove for receiving and retaining the horizontal portion of the rear tube. The rear portion of the chair bracket is pivotally attached to the rear end of the front tube and the front portion of the chair bracket is rested and supported onto the second traverse rod which is attached onto the middle portion of the front tube. The chair bracket is mounted with a seat having a straps configuration. Since the rear tubes can be folded toward the front tubes and the overall dimension can be reduced and which is specially suitable for delivery and packing. Besides, the user may readily assemble it on site.
REFERENCES:
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patent: 4212493 (1980-07-01), Ledesky
patent: 4253678 (1981-03-01), Leclerc
patent: 4384713 (1983-05-01), Detsch et al.
patent: 4770410 (1988-09-01), Brown
patent: 5605169 (1997-02-01), Light
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