Electrically controlled hand tool for friction-fusing non-metallic strap

Abstract

Abstract A tool for friction-fusing overlapping strap portions including an electric motor for oscillating a rocker member, with the rocker member being connected to an output member for initially intermittently rotating a strap gripping member in a first direction to withdraw one strap portion, and further including a level for sensing tension in said one strap portion for converting the intermittent rotary motion of the output member into oscillating movement, whereby one strap portion is moved relative to the other strap portion to effect interface melting therebetween. The shaft of the electric motor has an eccentric portion integral therewith and a sleeve is slidably mounted thereon and received within a cavity in the rocker member. The cavity in the rocker member is generally semi-circularly shaped, and the sleeve has arcuate upper and lower portions that are seated within the cavity. A ratchet and pawl mechanism is provided for converting the intermittent rotary motion of the output member into oscillating movement, and actuation of the ratchet and pawl mechanism is controlled by the tension sensing lever which has a pawl latching portion formed integrally therewith that release the pawl when a predetermined amount of tension is drawn in one strap portion.

Inventors

• 👤 Ilmar J Vilcins
• 👤 Robert J Frey

Bibliographic Details