Sram Deutschland Gmbh

Pedro Miguel Nunes Dos Santos

Henrik Braedt

Markus Reiter

Matthias Reinbold

Andreas Vonend

Joachim Hanke

John Collen

Rodrigo Antunes

Bruno Miguel Ferreira Da Silva Ribeiro

Bryn Johnson

Martin Kehrer

Luis Figueiredo

Diogo Daniel Soares Da Silva

An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.

Sprocket wheel for a bicycle drive

A bicycle chain includes inner link members and outer link member. An inner link having two connecting openings which are formed at a distance from each other, pass through the inner link in the thickness direction thereof and are each designed for receiving a connecting component in order to connect the inner link to a further inner link in order to form an inner link member of a bicycle chain. An outer link member may be formed and attached to the inner link. The inner and/or outer links may be formed with features asymmetric about various orientations of the links.

Asymmetric bicycle chain link

A bicycle chain is used to transmit the drive force to at least one chain wheel and contains chain rollers and inner and outer plates which are connected to each other by means of pins. As a result of a corresponding shaping of the extremely hard inner plate, the wear on the teeth which cooperate with the inner plate can be reduced on the chain wheels or sprockets.

Roller chain inner plate

A chain-closing link for a bicycle chain including two closing parts. Each of the closing parts includes a closing plate having a retaining opening and a displacement region. Each of the closing parts also includes a chain pin. The closing plate includes a recess and/or a hole having a securing region.

Chain closing link

A drive arrangement for a bicycle may include a plurality of sprockets arranged at a rear wheel of the bicycle. The sprockets may be particularly arranged to have a spacing that facilitates the configuration of an increasing number of sprockets in the plurality of sprockets. A singular front sprocket or chain ring may be used to drive the rear plurality of sprockets. The singular front chain ring may include first and second groups of teeth, the first group of teeth being wider than the second group of teeth. The drive arrangement may also include a rear derailleur. A chain having inner link plates with recesses may also be include in the drive arrangement.

Growing community of inventors

Coimbra, Portugal

Pedro Miguel Nunes Dos Santos