Guide supports of bicycle brake shoes

Details Guide supports of bicycle brake shoes Guide supports of bicycle brake shoes

1999-12-21

2001-10-16

Oberleitner, Robert J. (Department: 3613)

Brakes

Vehicle

Velocipede

Reexamination Certificate

active

06302242

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to bicycle brake shoes, and more particularly to guide supports of the bicycle brake shoes.
BACKGROUND OF THE INVENTION
As shown in
FIGS. 1 and 2
, a conventional bicycle front fork
10
is provided with an inverted U-shaped locating frame
13
which is fastened with two upright tubes
11
and
12
of the front fork
10
. Two guide supports
14
and
15
are fastened pivotally with the locating frame
13
such that the first guide support
14
is used to support a first brake shoe
16
, and that the second guide support
15
is used to support a second brake shoe
17
. The brake shoes
16
and
17
are respectively actuated by the guide supports
14
and
15
, which are linked with a brake cable
1
. The brake cable I is put through the top of the first guide support
14
such that one end of the brake cable
1
is fastened with the top of the second guide support
15
by a fastening screw
18
. When the brake cable
1
is pulled to slow down or stop the bicycle in motion, the brake shoes
16
and
17
are not evenly exerted on by the pull force of the brake cable
1
because the two guide supports
14
and
15
are different in amplitude when they swivel. As a result, the braking effect of the two brake shoes
16
and
17
is seriously undermined. In addition, the two brake shoes
16
and
17
are different in the extent to which they are worn.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a bicycle with a braking system comprising a brake cable, two guide supports, and two brake shoes fastened pivotally with the two guide supports capable of being actuated synchronously by the brake cable such that the two brake shoes are actuated uniformly by the two guide supports to bring about a braking action with precision.
The features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 374002 (1887-11-01), Platner
patent: 538930 (1895-05-01), Pahlmann
patent: 4391352 (1983-07-01), Brown
patent: 4869351 (1989-09-01), Romano
patent: 5913388 (1999-06-01), Ota et al.
patent: 0514470 (1921-03-01), None
patent: 0562372 (1923-11-01), None
patent: 604221 (1926-04-01), None
patent: 405058375-A (1993-03-01), None

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