Scissor-type lifting device, particularly for a work platform

Details Scissor-type lifting device, particularly for a work platform Scissor-type lifting device, particularly for a work platform

1989-08-10

1992-05-19

Chin-Shue, Alvin C.

Supports

Stand

Receptacle

248 63, 248 69, 187 18, E04G 122

Patent

active

051139723

ABSTRACT:
A scissor-type lifting device, for example for a work platform, with a scissor mechanism which has for one scissor axis 4 only two scissor arms a and b connected with each other so as to pivot about this scissor axis. The moments of torque that arise in the scissor arms produce prestresses in the mounts of the scissor axis and render the scissor mechanism free of play.

REFERENCES:
patent: 682932 (1901-09-01), Haltom
patent: 1261633 (1918-04-01), Sheford
patent: 1448932 (1923-03-01), Mayhugh
patent: 1592770 (1926-07-01), Liberman
patent: 2402579 (1946-06-01), Ross
patent: 3621940 (1971-11-01), Lodige
patent: 4576249 (1986-03-01), Zima
patent: 4930598 (1990-06-01), Murrill

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