×

Press safety device

  • US 4,321,841 A
  • Filed: 04/10/1980
  • Issued: 03/30/1982
  • Est. Priority Date: 04/10/1980
  • Status: Expired due to Term
First Claim
Patent Images

1. In a safety device for a machine with coverging parts between which stock material is manually inserted, and having means for insuring selective manipulation of the hands of the machine operator between a feed position and a safety position, the improvement comprising:

  • a ram adapted for connection with a stationary portion of the machine, and including a rod mounted for reciprocation along a plane substantially parallel with the plane along which the machine parts converge;

    a collar adapted for connection with a portion of said machine which reciprocates with a moving one of said converging machine parts, and including a central aperture therethrough in which said rod is slidingly received;

    a sleeve connected with said rod at a position thereon disposed downstream of said collar in the direction of convergence of the moving machine portion to which said collar is connected;

    said sleeve being shaped for selective abutment with said collar;

    means for operably connecting said hand manipulation means with said sleeve; and

    means for activating said ram and translating said rod at the beginning of each machine cycle in a direction identical with the converging motion of said moving one machine part, whereby said rod translation activates said manipulation means and positively insures that the hands of the machine operator are drawn out from inbetween the converging machine parts to said safety position; and

    in the event that said ram does not translate at the beginning of the machine cycle, said collar abuttingly engages said sleeve during the converging stroke of the machine, and moves said rod therewith to activate said hand manipulation means and draw the hands of the user into the safety position.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×