Method and apparatus for protecting light projector from...

Details Method and apparatus for protecting light projector from... Method and apparatus for protecting light projector from...

A - Human Necessities

41

H

240/102, 112/28

A41H 37/10 (2006.01) F16P 7/00 (2006.01)

Patent

CA 2008468

A method and apparatus for protecting a horizontally reciprocable light projector from collision with a vertical- ly reciprocable punch of a button setting machine, wherein a lost motion mechanism is provided for producing a delay between retracting movement of the light projector and the downward movement of the punch to such an extent that the light projector is retracted from the vertical path of movement of the punch before the punch starts moving down- ward. The lost motion mechanism is composed of a shaft having an annular actuating flange, and a cylinder member slidably receiving therein the shaft. The actuating flange is normally separated from the cylinder member and engage- able with the cylinder member to lower the punch when the light projector is retracted from the vertical path of movement of the punch.

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