Patent ID: 11890710
Assignee: HEICO BEFESTIGUNGSTECHNIK GMBH
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. The multiplex bolting tool of claim 1, further comprising:
a drive block in which the drive spindles are rotatably supported and held, each drive spindle having a drive section protruding from the drive block on each end, wherein the drive sections of the drive spindles serve to bear the torque-applying tools on one side of the drive block,
wherein, in the drive block, pistons of the piston drives are routed in cylinder housings such that said pistons are translationally displaceable in both directions, wherein piston rods of the pistons are each kinematically connected to a ratchet lever for transferring a forward stroke movement and a return stroke movement to the respective ratchet levers with pawls, and
wherein the drive block has at least one first fluid distribution cavity in a center area thereof, into which multiple fluid ducts located in the drive block open, said multiple fluid ducts each establish a fluid connection between the at least one first fluid distribution cavity and a first fluid input of one of the cylinder housings, and
wherein, on a flat side of the drive block, a fluid distributor with an annular duct connected to a fluid supply duct is arranged as a second fluid distribution cavity, into which multiple fluid ducts open, said multiple fluid ducts each establish a fluid connection between the second fluid distribution cavity and a second fluid input of one of the cylinder housings.