A hydraulic torque wrench (10) comprising: a housing (12); a drive pawl (1), pivotally mounted in the housing (12); and a piston rod (2), configured to be driven and connected to the drive pawl (1) in order to drive the drive pawl (1). A ratchet gear (3), configured to be driven for rotation by the drive pawl (1). A spring (4), configured to bias the drive pawl (1) into engagement with the ratchet gear (3). A travel limiter arranged to limit a pivoting travel of the drive pawl (1) away from engagement with the ratchet gear (3). By limiting the travel of the drive pawl (1), we remove the risk of over-extension of the spring (3).
Hydraulic torque wrench
2022-01-26
Patent
Electronic Resource
English
NTRS | 1970
|NTRS | 1981
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