Bicycle air pump structure

Details Bicycle air pump structure Bicycle air pump structure

1998-06-17

2001-05-08

Walberg, Teresa (Department: 3742)

Pumps

With signal, indicator, or inspection means

Reexamination Certificate

active

06227810

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to an air pump and in particular to an air pump structure which allows the pump to be fixed to a bicycle frame and driven by the bicycle chain so that the bicycle rider may be able to fix a tire pressure problem in any time and at any place.
BACKGROUND OF THE INVENTION
Bicycles have been widely used in transportation and exercise. The tire pressure of the bicycle is an important factor that affects the comfort of riding bicycle. The tire pressure has to be maintained at a predetermined level in order to get a comfortable riding experience. Furthermore, sometimes, the bicycle tires may be damaged and a flat tire occurs. Thus, an air pump is of importance for a bicycle rider.
Conventional air pumps, such as hand operating air pump indicated at
10
in
FIG. 8
of the attached drawings or foot operating air pump indicated at
20
in
FIG. 9
, are not designed to be carried with the bicycle so that when the tire pressure gets lower than the predetermined level or a flat tire occurs, the bicycle rider is not able to obtain instant and handy means to fix the tire pressure problem.
Thus, it is desirable to provide a bicycle air pump which is mounted on the bicycle and driven by the operation of the bicycle so as to provide a handy way for supply air to the bicycle tire.
SUMMARY OF THE INVENTION
Therefor, an object of the present invention is to provide an air pump which is suitable to be mounted on the bicycle to be carried thereby so as to provide a handy air supply to the bicycle tire.
Another object of the present invention is to provide an air pump which is mounted to the bicycle frame to be carried thereby and which is driven by the operation of the bicycle so as to provide an efficient way of supplying air to the bicycle tire.
To achieve the above objects, in accordance with the present invention, there is provided a bicycle air pump comprising a cylinder adapted to be secured to the bicycle frame, having a cylinder bore within which a piston reciprocates, a crank shaft rotatably supported on the cylinder and drivingly coupled to the piston by means of a connecting rod and means for coupling the crank shaft to the bicycle chain to be driven thereby so that when the bicycle pedals are actuated to drive the bicycle chain, the bicycle chain forces the crank shaft to rotate and thus making the piston reciprocate within the cylinder bore to pump air through an outlet of the cylinder.


REFERENCES:
patent: 3451276 (1969-06-01), Wadlow et al.
patent: 4462768 (1984-07-01), Westmoreland
patent: 4677328 (1987-06-01), Kumakura
patent: 5131671 (1992-07-01), Wilhelms
patent: 5318317 (1994-06-01), Hopper
patent: 5397144 (1995-03-01), Mirand et al.
patent: 5499858 (1996-03-01), Her
patent: 5538398 (1996-07-01), Elson
patent: 5626072 (1997-05-01), Mirand et al.
patent: 5860660 (1999-01-01), Garcia
patent: 5890725 (1999-04-01), Wood

Affiliated with

Also associated with

Rating

Bicycle air pump structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bicycle air pump structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bicycle air pump structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2530705