Patent ID: 6666336
Filing Date: 2003-12-23
Classification: B07B,Y10S

Abstract:
A sieving device comprising:a vibratory supporting frame, a vibration drive acting upon said supporting frame, and a vibration frame spring-elastically coupled to said supporting frame via spring elements, wherein said vibration frame can vibrate essentially freely in one direction of vibration, wherein said supporting frame and said vibration frame comprise transverse supports which are alternately arranged one behind the other in a direction of vibration, and which are adapted to carry sieve bottom elements which can be tensioned and untensioned in the direction of vibration, and wherein said spring elements are torsion-bar springs, and swinging arms are connected to said spring elements and protrude transversely relative to a longitudinal axis and a torsion axis of said spring elements, the swinging arms being coupled said vibration frame to said supporting frame.