Land vehicles – Wheeled – Extensible
Patent
1990-09-21
1991-12-03
Olszewski, Robert P.
Land vehicles
Wheeled
Extensible
280 474, 297355, 403105, B62B 706
Patent
active
050694740
ABSTRACT:
An improved doll-carriage having a retaining and adjusting mechanism which makes assembly and operation easier. The retaining and adjusting mechanism comprises a retaining piece and an adjusting piece mounted in a fixed relation to the retaining piece. The retaining piece has a guide channel thereon for press-fittingly engaging with a corresponding rear support leg when the carriage is in an extended configuration. The adjusting piece has a protrusion with teeth and pins on an outer face thereof for engaging with corresponding teeth and holes provided in a cylindrical recess of the retaining piece. The adjusting piece is urged to bear against the retaining piece by a spring received within a receiving recess formed on the adjusting piece and secured by a cover so that the adjusting piece is angle-adjustable in a limited manner. The retaining piece has an extension wing formed on a face proximate to the outer face of the adjusting piece which prevents any undesirable gap to be formed between the retaining piece and the adjusting piece.
REFERENCES:
patent: 4632420 (1986-12-01), Miyagi
patent: 4639012 (1987-01-01), Jensen
patent: 4836573 (1989-06-01), Gebhard
patent: 4880331 (1989-11-01), Zuh
Mar Michael
Olszewski Robert P.
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