Electrically controlled handtool for friction-fusing nonmetallic strap

Abstract

Abstract A COMPACT, PORTABLE TOOL FOR FRICTION-FUSING OVERLAPPING PORTIONS OF A TENSIONED ARTICLE BINDING LOOP, WHICH INCLUDES A ROTATABLY MOUNTED STRAP GRIPPING MEMBER FOR COMPRESSING INTERFACE REGIONS OF THE OVERLAPPING STRAP PORTIONS INTO FRICTIONAL ENGAGEMENT WITH ONE ANOTHER, WITH DRIVE MEANS BEING PROVIDED FOR FIRST INTERMITTENTLY ROTATING THE STRAP GRIPPING MEMBER IN A FIRST DIRECTION TO WITHDRAW ONE OF THE STRAP END PORTIONS TO CONSTRICT THE LOOP ABOUT THE ARTICLE, AND WITH THE DRIVE MEANS THEN BEING OPERATIVE TO OSCILLATE THE GRIPPING MEMBER TO CAUSE INTERFACE MELTING BETWEEN THE OVERLAPPING STRAP PORTIONS, WHEREBY THE MELTED SURFACE REGIONS MAY FUSE TO ACHIEVE INTERFACE SOLIDIFICATION. THE DRIVE MEANS INCLUDES AN ELECTRIC MOTOR HAVING A ROTARY OUTPUT SHAFT, WITH THE ROTARY MOTION OF THE SHAFT BEING CONVERTED INTO ROCKING MOVEMENT, AND WITH THE ROCKING MOVEMENT BEING CONVERTED INTO INTERMITTENT ROTARY MOVEMENT OF THE STRAP GRIPPING MEMBER. WHEN A PREDETERMINED AMOUNT OF TENSION IS DRAWN WITHIN THE STRAP LOOP, THE INTERMITTEN ROTARY MOION OF THE STRAP GRIPPING MEMBER IS CONVERTED TO OSCILLATING MOVEMENT TO EFFECT THE FRICTION-FUSION JOINDER OF THE OVERLAPPING STRAP PORTIONS.

Inventors

• 👤 Arvid I Ericsson

Bibliographic Details