Oscillating mass-based tool with dual stiffness spring

Details Oscillating mass-based tool with dual stiffness spring Oscillating mass-based tool with dual stiffness spring

B - Operations, Transporting

25

B

B25B 21/00 (2006.01) B25B 21/02 (2006.01)

Patent

CA 2291240

Disclosed is a low reaction oscillating mass-based torquing tool (1) wherein an os-cillating mass (4) is excited into near reso-nant oscillation by reversing pulses resulting in increased energy stored in oscillation about a dual stiffness spring (3) which develops a higher torque output with the stiffer spring action in the tightening direction and hence tightens the fastener.

Outil de serrage (1) à réaction basse basé sur une masse oscillante (4) qui est excitée par des impulsions d'inversion soumettant cette masse à une oscillation pratiquement résonante, ce qui permet d'augmenter l'énergie accumulée dans l'oscillation autour d'un ressort à double rigidité (3) en faisant apparaître une sortie de couple plus élevée sous un effet ressort plus rigide dans le sens de serrage et, de ce fait, serre l'élément de serrage.

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