US 5,242,159 AGranted

Hydraulic double lock vise

AssigneeKurt Manufacturing Company, Inc.

InventorLeon M. Bernstein

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Abstract

A two-station, single action device has a body, with a fixed center block forming oppositely facing fixed jaws. At opposite ends of the body, movable jaws are moved toward and away from the fixed center block simultaneously using an actuator drive. The actuator drive has a longitudinal actuator axis and a first member joined to the first movable jaw and a second member joined to the second moveable jaw. A longitudinal power drive joined to the first and second members drives the first and second members in opposite axial directions to move the movable jaws simultaneously toward the fixed jaw. The first member and the second member further rotate about the longitudinal actuator axis in a first rotatable direction to move the movable jaws simultaneously toward the fixed jaw and rotate in a second rotatable direction to move the movable jaws simultaneously away from the fixed jaw.

Claims20

Dependent claims

A vise assembly comprising a body, the body having opposite ends, and means for guiding vise jaws thereon, the assembly further comprising:

a fixed vise jaw mounted on the body between the opposite ends, the fixed jaw having oppositely facing jaw surfaces;
a pair of movable vise jaws comprising a first movable vise jaw and a second movable vise jaw mounted on the body, each of the movable vise jaws having a jaw surface facing one of the fixed jaw surfaces, and each of the movable vise jaws being movable toward and away from the fixed jaw;
rotatable actuator means for moving the movable vise jaws, the actuator means defining an actuator axis and including a first member joined to the first movable vise jaw and a second member joined to the second moveable jaw, the first and second member being rotatable about the actuator axis wherein rotation in a first rotatable direction moves the movable jaws simultaneously toward the fixed jaw and rotation in a second rotatable direction moves the movable jaws simultaneously away from the fixed jaw, the first member and second member further being axially displaceable in opposite axial directions substantially along the actuator axis to move the movable jaws simultaneously toward the fixed jaw;
and
longitudinal power drive means joined to the actuator means for selectively displacing the first member and the second member in opposite axial directions.

2 more elements

A vise assembly comprising a body, the body having opposite ends, and means for guiding vise jaws thereon, the assembly further comprising:

a fixed vise jaw mounted on the body between the opposite ends, the fixed jaw having oppositely facing jaw surfaces;
a pair of movable vise jaws comprising a first movable vise jaw and a second movable vise jaw mounted on the body, each of the movable vise jaws having a jaw surface facing one of the fixed jaw surfaces, and each of the movable vise jaws being movable toward and away from the fixed jaw, each of the movable vise jaws including an internal threaded bore, the bores being in alignment with each other and having opposite hand threads;
a drive screw having a longitudinal axis and a threaded section threadably mating with the internal threaded bore of the first movable vise jaw, wherein the first movable vise jaw will move toward the fixed jaw when the drive screw is rotated in a first rotatable direction, and move away from the fixed jaw when the drive screw is rotated in a second rotatable direction;
and
a drive sleeve joined to rotate with the drive screw, the drive sleeve having a threaded section threadably mating with the internal threaded bore of the second movable vise jaw, wherein the second movable vise jaw will move toward the fixed jaw when the drive screw is rotated in the first rotatable direction, and move away from the fixed jaw when the drive screw is rotated in the second direction;
and
longitudinal power drive means joined to the drive screw and drive sleeve for displacing the drive screw axially along the longitudinal axis opposite to the drive sleeve to simultaneously displace the movable vise jaws toward the fixed jaw for a limited distance with high forces.

4 more elements

Dependencies are inferred from the claim text.