摘要:
A protective plate (18) for attachment to a bicycle frame for guiding a chain includes a plate body (60) having a first side (64) for facing laterally toward the bicycle frame (10), a second side (68) for facing laterally away from the bicycle frame (10), a lower portion (72), and an upper portion (76). The lower portion (72) of the first side (64) of the plate body (60) is structured to align with a bottom bracket (58) of the bicycle, and a positioning abutment member (88) is disposed on the upper portion (76) of the first side (64) of the support body (60). An upper surface (104) of the positioning abutment member (88) forms a positioning abutment for positioning a front derailleur (14) to the bicycle frame (10). Additionally, a chain guiding abutment (160) may be formed on the upper portion (76) of the second side (68) of the support body (60) for guiding the chain as the chain shifts from a larger chainring to a smaller chainring.
摘要:
A bicycle front chainwheel assembly is provided that includes a protective cover (24). The front chainwheel assembly basically includes a crank arm (14), one or more chainrings (20,21) and the protective cover (24). The crank arm (14) includes a hub portion (30), a crank portion (32) and four fastening finger portions (34). The free ends (60) of the fastening finger portions (34) are provided with chainring attachment points for attaching the cover (24) thereto. The cover (24) is attached to the fastening finger portions (34) by fasteners (68) that have a shaft extending substantially perpendicular to the axis of rotation A of the front chainwheel assembly.
摘要:
A bicycle rear derailleur guard assembly (60) for use with a bicycle (20) having a derailleur (54) mounted to a frame (22) of the bicycle by a derailleur mounting bolt (84). The darailleur guard assembly (60) preferably includes a body (110) supportable by an axle assembly (62) of the bicycle (20). The body (110) is configured to extend from an axis of the axle assembly (62) to a space adjacent the mounting bolt of the derailleur (54) and defines an inner surface facig the frame (22) when the guard assembly (60) is mounted to the bicycle (20). A support is configured to support the derailleur (54) when the guard assembly (60) is mounted to the bicycle (20) and, in at least one arrangement, the body (110) is positioned outwardly of the derailleur mounting bolt (84) within the space adjacent the mounting bolt.
摘要:
A protective cover (10) for a derailleur (14) includes a top cover member (36) for covering a top portion of a derailleur, a front cover member (40) coupled to the top cover member (36) for covering a front portion of the derailleur, and a rear cover member (44) coupled to the top cover member for covering a rear portion of the derailleur. In a specific embodiment the top cover member (36), the front cover member (40) and the rear cover member (44) define an open lateral outer side. A collar is provided for fitting the protective cover to a structural member of the bicycle.
摘要:
A mudguard 38 for guarding a cycle chain wheel 26 from mud thrown up by the front cycle wheel 12. The mudguard surrounds the forward lower quadrant of the cycle chain wheel 26, whilst leaving the side face of the chain wheel uncovered.
摘要:
Bei einem Kettenschutz für einem Zahnkranz eines Tretlagers mit Tretlagerachse zugeordnetem Antriebsstrang -- insbesondere Fahrradkette -- eines Zweiradfahrzeuges, der mit einem Kettenschutzgehäuse (10) für einen obertrumigen Abschnitt des den Zahnkranz teilweise umfangenden Antriebsstranges versehen ist, weist das Kettenschutzgehäuse (10) eine mit einem etwa kreisförmigen Durchbruch (12) versehene Scheibe aus einem halbkreisförmigen Abschnitt (20) und beidends an diesen anschließenden Heckabschnitt (22) als Zentralgehäuse (14) auf, an das ein getrennt geformter Profilarm (16) für den obertrumigen Strang- oder Kettenabschnitt angesetzt ist. Die Innenkante (19) des Heckabschnittes (22) begrenzt mit der Innenkante (18) des Halbringabschnittes (20) den Durchbruch (12), und der Heckabschnitt ist etwa radial zum Durchbruchzentrum (Z) mit einer Formnut (26) ausgestattet.
摘要:
Die Erfindung betrifft einen schutz von Fahrradketten und insbesondere von Schaltwerk und Zahnrädern der an der Hinterradachse vorgesehenen Gangschaltung eines Fahrrades. Um den schutz der Fahrradkette und insbesondere auch des Schaltwerkes und der Zahnräder der Gangschaltung an der Hinterradachse eines Fahrrades zu verbessern, ist ein langgestreckter Astabweiser (14) an der außen gelegenen Seite der Fahrradkette, bevorzugt auch der Zahnräder (3) und übrigen Bauteilen (13) der Gangschaltung vorgesehen.