US 2001/0022121 A1 · Torque wrench with variable-arm clicker mechanism

Abstract

A torque wrench (40) with a variable-arm clicker mechanism, comprises a substantially tubular body (41), equipped with a handgrip (18) from which protrudes a ratchet gear element (4), suited for engaging with the blocking device which must be tightened. Inside the tubular body (41) is the clicker mechanism, which comprises a main lever (2) ending with the ratchet gear element (4), with fulcrum on the same tubular body (41) by means of a pin (3). The clicker mechanism has a pair of parallel intermediate levers (6), hinged on a fulcrum (10), integral with a mobile carriage (9), where the parallel intermediate levers (6) extend within the carriage (9) through slots (31, 32) which act as guides for the levers and are connected by means of a pin (12) to small levers (22) which command a push rod (20) that operates a spring (16).

Claims13

Dependent claims

Torque wrench (40) with a variable-arm clicker mechanism, comprising a substantially tubular body (41), equipped with a handgrip (18) from which protrudes a ratchet gear element (4), suited for engaging with the blocking device which must be tightened, where inside said tubular body (41) there is said clicker mechanism, which comprises a main lever (2) ending with said ratchet gear element (4), with fulcrum on the same tubular body (41) by means of a pin (3), characterised in that said clicker mechanism has a pair of parallel intermediate levers (6), hinged on a fulcrum (10), integral with a mobile carriage (9), where said parallel intermediate levers (6) extend within said carriage (9) through slots (31, 32) which act as guides for the levers and are connected by means of a pin (12) to small levers (22) which command a push rod (20) that operates elastic means (16).

Dependencies are inferred from the claim text.

Torque wrench with variable-arm clicker mechanism

Life of this patent

Torque wrench with variable-arm clicker mechanism

Life of this patent

Abstract

Claims13