Land vehicles – Step or abutment ascending type vehicle – With endless track
Patent
1983-07-07
1986-01-28
Peters, Jr., Joseph F.
Land vehicles
Step or abutment ascending type vehicle
With endless track
180 82, 180907, 280242WC, 280289WC, 280DIG10, 403330, 403393, 410 51, 410 81, B62B 502, B62B 902, B62D 5500, A61G 500
Patent
active
045667063
ABSTRACT:
An apparatus for moving a wheelchair having a pair of upright rear frame members has a support adapted to engage underneath the wheelchair in an upright condition of same with the chair pivotal on the support between erect and inclined positions. At least two endless tracks on the support carry same and the wheelchair thereon so that the tracks allow the wheelchair to move on an incline. A frame element pivotal on the support about a horizontal axis transverse to the tracks carries a vertically displaceable transverse mount having outer ends respectively juxtaposed with the wheelchair frame members. An adjustment spindle extending along and rotatable about a horizontal axis through the mount ends adjacent the frame members has oppositely threaded ends at the outer ends engaged in respective mounting blocks axially slidable in the outer mount ends and threaded on the adjustment-spindle ends. Thus rotation of the spindle in one direction about its axis moves the two blocks axially apart and opposite rotation moves them axially together. The mounting blocks are formed to fit with the respective wheelchair frame members so that the blocks can be moved together and apart by means of the spindle to fit to chairs of different sizes. Respective clips are pivotal on the blocks between holding positions securing the respective wheelchair frame members in the respective seats and releasing positions out of engagement with the respective wheelchair frame members.
REFERENCES:
patent: 1971952 (1934-08-01), Townsend
patent: 2635775 (1953-04-01), Ernst
patent: 3887228 (1975-06-01), Ingerson
patent: 4401178 (1983-08-01), Studer
patent: 4432426 (1984-02-01), Misawa
Abele Anton
Bihler Franz
Dubno Herbert
Hill Mitchell J.
Kleindienst GmbH
Peters Jr. Joseph F.
Ross Karl F.
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