Ratchet wrench, comprises curved sliding element and toothed locking element in order to move in one direction only

摘要

The wrench (1) is designed as a long handle (11) with an operating head (12) comprising a central opening (13) located at one end. A recess (14) at the inner surface of the opening (13) facilitates the insertion of the locking unit (2), acting in combination with the toothed outer surface (31) of the inner ring (3). The locking unit (2) is assembled of a curved sliding element (21) with a concave front surface (211), a toothed locking element (22), and a helical spring (23) positioned between them.