Rear derailleur pulley set

- Shimano Inc.
Description

FIG. 1 is a front elevational view of a rear derailleur pulley set in accordance with my new design;

FIG. 2 is a right side elevational view of the rear derailleur pulley set illustrated in FIG. 1;

FIG. 3 is an enlarged, front elevational view of the upper guide pulley of the rear derailleur pulley set illustrated in FIGS. 1 and 2;

FIG. 4 is an enlarged, peripheral side view of the upper guide pulley of the rear derailleur pulley set illustrated in FIGS. 1 and 2;

FIG. 5 is a partial cross-sectional view of the upper guide pulley of the rear derailleur pulley set illustrated in FIGS. 1 and 2;

FIG. 6 is an enlarged, front elevational view of the lower tension pulley of the rear derailleur pulley set illustrated in FIGS. 1 and 2;

FIG. 7 is an enlarged peripheral side view of the lower tension pulley rear derailleur pulley set as illustrated in FIGS. 1 and 2;

FIG. 8 is an enlarged, rear elevational view of the lower tension pulley of the rear derailleur pulley set illustrated in FIGS. 1 and 2; and,

FIG. 9 is a partial cross-sectional view of the lower tension pulley of the rear derailleur pulley set illustrated in FIGS. 1and 2.

The lower tension pulley and the upper guide pulley have a continuous repetitive pattern along their peripheries as illustrated in FIGS. 4 and 7. The broken line showing of environment in FIGS. 1, 2, 6 and 8 is for illustrative purposes only and forms no part of the claimed design. The rear derailleur pulley set of the claimed design has been broken away in FIGS. 5 and 9 for illustrative purposes only, i.e., to understand the claimed design of an eleven teeth guide pulley and a thirteen teeth tension pulley.

Referenced Cited
U.S. Patent Documents
D283415 April 15, 1986 Ishikawa
D292503 October 27, 1987 Juy
D339770 September 28, 1993 Noami
4058020 November 15, 1977 Huret et al.
4322209 March 30, 1982 Shimano
4433963 February 28, 1984 Shimano
4573949 March 4, 1986 Nagano
5238458 August 24, 1993 Ishibashi
5350339 September 27, 1994 Carmichael
5597366 January 28, 1997 Ozaki
Patent History
Patent number: D406084
Type: Grant
Filed: Jul 23, 1997
Date of Patent: Feb 23, 1999
Assignee: Shimano Inc. (Osaka)
Inventor: Masao Kojima (Izumi)
Primary Examiner: Melody N. Brown
Law Firm: Shinjyu Global IP Counselors, LLP
Application Number: 0/74,046
Classifications
Current U.S. Class: Derailleur Or Gear Unit (20) (D12/124)
International Classification: 1211;