Machine element or mechanism – Control lever and linkage systems – Elements
Reexamination Certificate
1999-06-14
2001-01-09
Ta, Khoi Q. (Department: 3681)
Machine element or mechanism
Control lever and linkage systems
Elements
C074S519000
Reexamination Certificate
active
06170356
ABSTRACT:
The present invention relates to brake actuating levers for bicycles, of the type comprising a body including a channel-shaped end portion having two wings provided with a first pair of facing holes for engagement of an articulation pin for articulation of the lever to a supporting body, and a second pair of facing holes for engagement of the ends of an anchoring pin for anchoring a brake actuating cable, said anchoring pin having a transverse hole for engagement of one end of the cable.
The object of the present invention is that of providing a lever of the above indicated type which is lighter with respect to the levers provided heretofore, so that it is particularly adapted for example to be used in race bicycles, the lever having adequate strength characteristics.
A further object of the invention is to provide a lever of the above indicated type which can be assembled on the bicycle and connected to the brake actuating lever, with simple and rapid operations.
In view of achieving the above mentioned main object, the invention provides a brake actuating lever having all the above indicated features and further characterised in that the body of the lever is made in one piece of thermoformable plastic material reinforced with long structural fibres. The reinforcing fibre may be carbon fibre, kevlar or AKZO-M5 (trademark).
Moreover, in view of achieving the secondary object indicated above, preferably the anchoring pin of the cable provided on the lever according to the invention has its end engaged within respective facing holes of the end portion of the lever and is surrounded by a metal bush having its ends facing the inner surfaces of the two wings of said portion of the lever. The metal bush has two opposite transverse holes which are aligned with the transverse hole of the anchoring pin. The edge of one of said transverse holes of the metal bush is deformed within the facing end of the transverse hole of the anchoring pin, so as to rigidly connect the bush to the anchoring pin. In this manner, the pin is held axially on the lever, since any movement thereof along the axial direction is prevented by the engagement of the two end surfaces of the metal bush against the inner surfaces of the two wings of the end portion of the lever.
REFERENCES:
patent: 3101120 (1963-08-01), Huthsing, Jr.
patent: 3733922 (1973-05-01), Tripp
patent: 3803941 (1974-04-01), Yoshikawa
patent: 4318307 (1982-03-01), Kine
patent: 4730509 (1988-03-01), Hornady
patent: 4889355 (1989-12-01), Trimble
patent: 5217354 (1993-06-01), Neward
patent: 5277080 (1994-01-01), Roelle
patent: 5499548 (1996-03-01), Keller
patent: 5531136 (1996-07-01), Tyler
patent: 5592700 (1997-01-01), Genesse
patent: 5881605 (1999-03-01), Doolittle et al.
Campagnolo S.r.l.
Sughrue Mion Zinn Macpeak & Seas, PLLC
Ta Khoi Q.
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