Scissor frame lock

Details Scissor frame lock Scissor frame lock

1979-07-27

1981-01-20

Mitchell, David M.

Land vehicles

Wheeled

Coasters

280644, 280649, 297 5, 403 92, B62B 710

Patent

active

042458501

ABSTRACT:
A scissor frame lock includes a circular plate sandwiched between the corresponding legs of the scissor frame at their point of intersection. The legs and the plate are formed with aligned openings for slidably receiving a pivot pin. One end segment of the pivot pin is bent back on itself so that the end segment bypasses the adjacent leg and extends through a second opening in the plate. The pin is biased outwardly so that when the two legs are more or less perpendicular the pin segment projects into an opening in the other frame leg to lock the legs in that orientation. The legs are folded/together by depressing the pin so as to disengage its end segment from that opening.

REFERENCES:
patent: 815528 (1906-03-01), Haag
patent: 2722104 (1955-11-01), Kanemoto
patent: 3337230 (1967-08-01), Golding
patent: 3754786 (1973-08-01), Boucher
patent: 4045045 (1977-08-01), Boucher et al.

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