Patent ID: 6830273
Filing Date: 2004-12-14
Classification: B23B,B25J,Y10T

Abstract:
A parallel gripper having a housing and two adjustable gripper base jaws which are slidably guided in the housing in a jaw guide opening, where the base jaws can be moved toward or away from each other by means of a wedge hook mechanism and the wedge hook mechanism is adjustable by means of a piston which is mounted in the housing, characterized in that the piston has an essentially rectangularly configured shape with rounded corners;each base jaw has at least two guide ribs on both sides, at least one of rectangular, wedge-shape and trapezoidal in cross section and extending in the sliding direction, and the jaw guide opening has guide grooves configured complementary thereto; a ratio of the wall thickness of the housing measured between a root of the guide grooves and an outside of the housing to a width of the housing measured perpendicular to the sliding direction of the base jaws is at least about 0.2; and a ratio of the an angular power transmission width of the wedge hook mechanism to an external width of the base jaws is at least about 0.4.