Land vehicles – Wheeled – Extensible
Patent
1994-10-25
1995-11-07
Camby, Richard M.
Land vehicles
Wheeled
Extensible
280 4729, 280 4724, B62B 104
Patent
active
054642442
ABSTRACT:
A retractable handle including two parallel sleeves, a cross member connected between the sleeves at the top, and two extension rods connected in parallel and moved in and out of the sleeves, the cross member being incorporated with a spring supported pressure plate, the pressure plate having two beveled push blocks at two opposite ends, the extension rods having two spring-supported lock bolts horizontally disposed at the bottom, wherein the lock bolts are forced by the respective springs through respective locating holes on the sleeves into respective bottom notches on the cross member and stopped above the beveled push blocks to lock the retractable handle in the operative position when the extension rods are pulled out of the sleeves; the lock bolts are forced backwards from the bottom notches of the cross member into the locating holes on the sleeves, when the pressure plate is depressed against the cross member, permitting the extension rods to be moved back inside the sleeves and received in the collapsed position.
REFERENCES:
patent: 4896897 (1990-01-01), Wilhelm
patent: 5178404 (1993-01-01), Chen
patent: 5181590 (1993-01-01), Carpenter et al.
patent: 5257800 (1993-11-01), Yang
patent: 5291976 (1994-03-01), Ku
patent: 5294145 (1994-03-01), Cheng
patent: 5295565 (1994-03-01), Latshaw
patent: 5308103 (1994-05-01), Chin-Shang
patent: 5323886 (1994-06-01), Chen
patent: 5374073 (1994-12-01), Hung-Hsin
patent: 5397151 (1995-03-01), Aserg
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