Reversing mechanism for safety gate of injection molding...

Details Reversing mechanism for safety gate of injection molding... Reversing mechanism for safety gate of injection molding...

B - Operations, Transporting

29

C

18/680

B29C 45/84 (2006.01) E05F 15/00 (2006.01) F16P 3/10 (2006.01) F16P 3/12 (2006.01)

Patent

CA 1206310

A B S T R A C T A drive-reversing safety mechanism for the motor-driven safety gate of an injection molding machine, featuring a chan- nel-shaped contact bar which is pivotably attached to the out- er vertical corner on the leading edge of the safety gate and biased forwardly, so as to pivot rearwardly, when encounter- ing an obstacle while closing. A minimal initial displacement of the contact bar produces the depression of a transversely oriented plunger of a reversing switch with the aid of a flex- ible, bell-crank-type actuating lever in the shape of an open triangle. A curved end flange of the contact bar drives the actuating lever with a trigger edge, overriding the initial switching displacement, while holding the switch plunger in a depressed position.

436765

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