PRECISION HANDLE FOR HAND TOOLS

摘要

A precision handle for hand tools has a body, an elastic element, a sheath, a pressing element, and a group of balls. The mounting protrusion protrudes axially from a rear end of the body. The elastic element is mounted in the body. The sheath is mounted around the mounting protrusion. The pressing element is mounted through and engages with the sheath. The group of balls includes a first ball and a second ball. The first ball is mounted in the mounting protrusion and abuts the elastic element. The second ball is mounted between the pressing element and the first ball. The first ball abuts against the second ball at one point of contact when the pressing element is pressed, thereby decreasing the friction between the body and the sheath. Accordingly, the precision handle for hand tools can be operated smoothly and efficiently.

主权项

1. A precision handle for hand tools comprising:
a body having
a front end;a rear end; anda mounting protrusion axially formed on and protruding from the rear end of the body and having
a rear side being opposite to the rear end of the body;a mounting recess formed in the mounting protrusion adjacent to the rear end of the body;a through hole formed through the rear side of the mounting protrusion and having an inner diameter; anda limiting circular rib formed in the mounting protrusion at a connecting portion between the mounting recess and the through hole; an elastic element mounted in the mounting recess; a sheath mounted around the mounting protrusion of the body and having
an inner surface;a proximal end abutting the rear end of the body;a distal end being opposite to the proximal end;a positioning circular rib formed radially inward on the inner surface of the sheath adjacent the distal end of the sheath; anda connecting hole formed through the distal end of the sheath and communicating with the through hole; a pressing element mounted through and engaging with the sheath and having
an embedded portion having
an outer surface;a proximal side facing the mounting recess;an engaging circular rib formed radially outward on the embedded portion at the proximal side of the embedded portion; andan embedding recess formed in the proximal side of the embedded portion and being a circular recess; and a group of balls mounted in the sheath between the mounting protrusion of the body and the pressing element and including
a first ball mounted in the mounting protrusion via the through hole and having a front side extending in the mounting recess to enable the first ball to abut the elastic element; anda second ball mounted in the embedding recess of the pressing element and abutting the first ball.