Twist-grip shifter for bicycles

Details Twist-grip shifter for bicycles Twist-grip shifter for bicycles

1997-04-25

2000-05-02

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

745022, 264255, 264513, G05G 1100

Patent

active

060558822

ABSTRACT:
A twist-grip shifter for bicycles having a twist grip, which twist grip includes an outer grip part and an inner twist part. The twist grip has an area with a small diameter, a transitional area, and an area with a large diameter, and the twist grip can be positively and detachably connected to a twist grip shifter in the axial direction. The twist grip can have an elastic rubber grip part and a non-elastic rotary part, and can have a surface structure with root-like, sharp ribs on the external surface of the grip part. The surface structure on the grip part has the advantage that the fins or peaks extend axially along the surface lines, and fit into the bends underneath the joints of the index finger, to essentially guarantee the optimum transmission of torque from the hand of the rider to the twist grip.

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