The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2000
Filed:
Apr. 25, 1997
Markus Arbeiter, Wurzburg, DE;
Nico Lemmens, Bergrheinfeld, DE;
Fichtel & Sachs AG, , DE;
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.