Land vehicles – Wheeled – Stable vehicles – handle-propelled
Patent
1987-08-28
1988-10-25
Mitchell, David M.
Land vehicles
Wheeled
Stable vehicles, handle-propelled
16 35R, 280643, 280658, 280 4739, B60B 3302
Patent
active
047798793
ABSTRACT:
A baby carriage (1) has a push rod (10) which can be switched between two states, one for the face-to-back push mode and the other for the face-to-face push mode, front wheel casters (14), and rear wheel casters (15). When the push rod (10) is in the face-to-back push mode, wire position switching means (19) is operated to maintain a wire (18) in a rear position. In this state, the engagement between front wheel caster locking means (16) and the rotary yokes of the front wheel casters (14) has been canceled, so that the front wheel casters are allowed to swivel. On the other hand, rear wheel caster locking means (17) is in engagement with the rotary yokes of the rear wheel casters (15), so that the swiveling of the rear wheel casters is inhibited. When the push rod (10) is switched to the face-to-face push mode, the wire position switching means is operated to switch the wire to the front position. In this state, the front wheel caster locking means (16) is in engagement with the rotary yokes of the front wheel casters (14), so that the swiveling of the front wheel casters (14) is inhibited. On the other hand, the engagement between the rear wheel caster locking means (17) and the rotary yokes of the rear wheel casters (15) is canceled, so that the swiveling of the rear wheel casters (15) is allowed.
REFERENCES:
patent: 2154525 (1939-04-01), Noros et al.
patent: 4608729 (1986-09-01), Huang
patent: 4684148 (1987-08-01), Glaser
patent: 4733882 (1988-03-01), Kassai
Aprica Kassai Kabushikikaisha
Fasse W. G.
Kane, Jr. D. H.
Mitchell David M.
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