Supports – Brackets – Adjustable
Patent
1989-10-17
1991-05-14
Chotkowski, Karen J.
Supports
Brackets
Adjustable
248653, 343880, H01Q 108
Patent
active
050149539
ABSTRACT:
Disclosed is a mechanism comprising an arm hinged on a connecting rod to make a choice, on the basis of a translational motion along two opposite directions, between "lowered arm" and "outstretched arm" positions that are substantially orthogonal to each other. In this mechanism, the rod and the arm, when the latter is lowered, form an obtuse angle, and the rotation pins other than the pin common to the rod and to the arm are fixed as regards the pin of the connecting rod, and undergo translational motion as regards that of the arm. The free end of the arm coming to the lowered arm position thus follows a trajectory with downward sliding and passage through a "hard point" which ensures that the arm is efficiently kept in the lowered position.
REFERENCES:
patent: 2036097 (1936-03-01), Pieper
patent: 2882004 (1959-04-01), Leishman
patent: 3088727 (1963-05-01), Pelagatti
patent: 3291431 (1966-12-01), Daniel, Jr.
patent: 3566346 (1971-02-01), Scopatz
patent: 3886491 (1975-05-01), Jonkey et al.
patent: 3995797 (1976-12-01), Knight
patent: 4723128 (1988-02-01), Gasque, Jr.
patent: 4736641 (1988-04-01), Reid
Barbot Joel
Warnan Francois
"Thomson-CSF"
Chotkowski Karen J.
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