Sectional entrance handle retract mechanism

Details Sectional entrance handle retract mechanism Sectional entrance handle retract mechanism

E - Fixed Constructions

05

B

292/51

E05B 1/00 (2006.01) E05C 1/14 (2006.01)

Patent

CA 1068746

ABSTRACT OF DISCLOSURE For translating the linear motion of a pivotally mounted thumb piece for a front door latch into the rotary motion needed to withdraw a latch bolt, two rotary members are employed. One is a bell crank having a pivotal mounting on the mounting plate at one side of and at right angles to the pivotal mounting of the thumb plate and rotationally re- sponsive to linear motion of the thumb piece. The other is a drum having a rotatable mounting on the mounting plate paral- lel to and spaced from the bell crank pivotal mounting, and at a location adjacent a roll back of a latch bolt. A re- silient connector strip from the bell crank to the drum causes the drum to be rotated in response to rotation of the bell crank. A torsion return spring attached to the drum acts to return the drum and the bell crank to their original positions.

286732

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