Multiplex bolting tool
AssigneeHeico Befestigungstechnik GmbH
InventorStefan Vornweg
Life of this patent
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Abstract
A torque wrench for multiple bolts or nuts comprises multiple drive spindles that are arranged annularly around a center and are equipped or able to be equipped at the end with respective torque-applying tools, and a ratchet drive, associated with each drive spindle and driven by means of a hydraulic piston drive, for driving the drive spindles. In addition to the ratchet drive, a locking ratchet for locking the drive spindle acts on each drive spindle to keep it from turning back when exercising a return stroke movement of the drive ratchet. The locking ratchets are arranged in a locking bracket, which is penetrated by the drive spindles. The locking bracket has means for loosening the locking ratchets.
Claims25
A multiplex bolting tool for multiple bolts or nuts with multiple drive spindles that are arranged around a center and are equipped or able to be equipped at an end with respective torque-applying tools, and a ratchet drive, associated with each drive spindle and driven by means of a hydraulic piston drive, for driving the drive spindles, comprising:
- locking ratchets for locking the drive spindles, each locking ratchet acts on one of the drive spindles, in addition to the ratchet drive, to keep the drive spindle from turning back when the ratchet drive performs a return stroke movement, wherein the locking ratchets are arranged in a locking bracket penetrated by the drive spindles, and the locking bracket has means for loosening the locking ratchets.
Dependencies are inferred from the claim text.