Communications: electrical – Land vehicle alarms or indicators – For bicycle
Reexamination Certificate
2001-03-16
2001-11-20
Wu, Daniel J. (Department: 2632)
Communications: electrical
Land vehicle alarms or indicators
For bicycle
C340S479000, C340S464000, C074S489000, C188S024220, C200S061120, C362S035000
Reexamination Certificate
active
06320499
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a brake signal sensor device, and more particularly to a brake signal sensor device, wherein a pull wire is pulled to operate a contact switch for starting a warning light, thereby enhancing the safety of riding the bicycle.
2. Description of the Related Prior Art
A conventional contact switch
100
in accordance with the prior art shown in
FIGS. 8 and 9
is mounted on a bicycle and comprises a body
101
, a press member
102
having a first end formed with a shank
103
slidably mounted in the body
101
, and a second end formed with an operation portion
104
, and a set screw
105
screwed on the operation portion
104
for positioning the contact switch
100
.
In assembly, the operation portion
104
of the press member
102
of the contact switch
100
is secured on the brake wire
82
of the bicycle by the set screw
105
. The contact switch
100
is connected with the warning light
90
of the bicycle by a transfer wire. When the bicycle is braked, the brake wire
82
is pulled to press the shank
103
of the press member
102
of the contact switch
100
into the body
101
, thereby operating the contact switch
100
to transmit the signal to the warning light
90
so that the warning light
90
can light, thereby providing a warning effect.
However, the operation portion
104
of the press member
102
of the contact switch
100
is disposed at one side of the shank
103
, so that when the operation portion
104
of the press member
102
of the contact switch
100
is pulled by the brake wire
82
, a rotational moment is exerted on the shank
103
whereby a great friction is generated between the shank
103
and the body
101
, thereby easily causing wearing.
In addition, the contact switch
100
is secured on the pull wire
82
which is used for pulling the brake pad. When the brake pad is worn out, the user has to adjust the tightness of the brake wire
82
. The contact switch
100
secured on the pull wire
82
occupies a large space of the pull wire
82
, so that the adjustable extent of the pull wire
82
is greatly limited.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional contact switch.
In accordance with the present invention, there is provided a brake signal sensor device comprising a body, and a cover mounted on the body, wherein:
the body has a top face whose center defines an elongated receiving chamber;
a contact switch is secured in the receiving chamber of the body and is electrically connected to a warning light, the contact switch is provided with a positioning portion which is secured in the receiving chamber of the body, the positioning portion of the contact switch has one side provided with two spaced guide plates;
a conducting member is slidably mounted in the receiving chamber of the body and faces the two guide plates of the positioning portion;
a first elastic member is extended through the positioning portion of the contact switch and is urged on a first side of the conducting member such that the conducting member is spaced from the two guide plates of the positioning portion;
a second elastic member has a first end urged on a second side of the conducting member;
a press member is secured on a second end of the second elastic member; and
a pull wire has a first end attached to the press member and a second end extended through the second elastic member, the conducting member, the first elastic member, and the positioning portion, and extended outward from the body.
The body has a bottom defining a channel extended through an entire length of the body.
The cover has a top face defining at least one transverse trench.
The positioning portion of the contact switch has the other side secured with a socket which protrudes outward from a top face of the cover.
REFERENCES:
patent: 4031343 (1977-06-01), Sopko
patent: 4275280 (1981-06-01), Yamazaki
patent: 4760372 (1988-07-01), Watson
patent: 4896138 (1990-01-01), Nickols
patent: 5739750 (1998-04-01), Drake
patent: 5924328 (1999-07-01), Okajima et al.
Rosenberg , Klein & Lee
Wu Daniel J.
LandOfFree
Brake signal sensor device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brake signal sensor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake signal sensor device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2591431