Patent ID: 8146510
Filing Date: 2012-04-03
Classification: B65G

Abstract:
1. A workpiece support system comprising: a driven, circulating traction means; a stationary base frame; at least one workpiece support that comprises a load carrier and a traction carriage; wherein the traction carriage comprises a clamping device with at least one upper and at least one lower clamping elements between which the traction means is arranged and by means of which the traction carriage is clamped by a clamping action onto the traction means; wherein the traction carriage has at least one spring element that exerts a spring force on at least one of the upper and lower clamping elements for effecting the clamping action; wherein the at least one workpiece support has an actuating element arranged in a leading area in a travel direction of the at least one workpiece support, wherein the actuating element reduces a clamping force of the clamping action when the at least one workpiece support bumps into a leading workpiece support in the travel direction; wherein the traction means is guided about two pulleys; wherein one of the upper and lower clamping elements comprises a rotatable eccentric element with a clamping surface that has a spacing to a point of rotation of the eccentric element which spacing is not constant, wherein the clamping surface is in contact in a clamped state with the traction means.