Land vehicles: wheels and axles – Wheel
Reexamination Certificate
2001-11-07
2002-10-15
Morano, S. Joseph (Department: 3617)
Land vehicles: wheels and axles
Wheel
C301S064101
Reexamination Certificate
active
06464302
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The present invention relates to the structural improvement of a wheel, and more particularly to an assembled wheel structure that has excellent resilience and no need to fill in air as well as is free of air leakage and easy to be disassembled.
(2) Description of the Prior Art
Please refer to
FIG. 1
, a schematic structural view of a prior wheel. According to the structure of a wheel
10
(here referring to the wheel used by bicycles, electrical scooters, wheelchairs, trailers, etc.), its main structures may include an outer rubber tire
11
with an air nuzzle
13
attached to a wheel frame
12
which provides structural support to the expansion of the rubber tire
11
. The wheel
10
often encounters a major problem, i.e., air leakage of the rubber tire
11
caused by the penetration of pushpins or other sharp objects. As a result, the wheel
10
needs to be refilled with air, the rubber tire
11
is damaged, or, in more severe cases, the rubber tire
11
is detached from the wheel frame
12
, which causes the direct contact of the wheel frame
12
with ground surface and the friction deforms the wheel frame
12
. In such case, the wheel frame
12
or the entire wheel
10
needs to be replaced. Furthermore, the tire is made of rubber that is not resistant to friction and has poor resilience, and when the wheels
10
of bicycle
20
have poor resilience, the comfort of the bicycle rider is often compromised.
SUMMARY OF THE INVENTION
Because of the stated shortcomings of existing wheels used by bicycles, electrical scooters, wheelchairs, etc., I propose a possible solution, the present invention, after a sequence of continuous researches, developments, and improvements as well as many tests. The present invention is constructed by a wheel body and a tire, wherein the tire is made of resilient materials (e.g., plastic, PU, etc.) and the wheel body is further constructed by a wheel shell and a matching wheel cover, so that the wheel structure has excellent resilience, is free of air leakage, and can to be partially disassembled.
The primary objective of the present invention is to provide a wheel structure with excellent resilience and good friction resistance. By means of double-layered resiliency, rider comfort is improved while the wear of tire surface is effectively reduced to prolong the usable time of the wheel.
The other objective of the present invention is to provide a wheel structure that needs not to fill in air or worry about air leakages.
REFERENCES:
patent: 3048447 (1962-08-01), Klint
patent: 5046784 (1991-09-01), Carter, III
patent: 5388623 (1995-02-01), Homma et al.
patent: 5655785 (1997-08-01), Lee
patent: 5797661 (1998-08-01), Lee et al.
patent: 5810450 (1998-09-01), Tsu et al.
patent: 6106074 (2000-08-01), Chang
patent: 6139040 (2000-10-01), Dempsey
patent: 6322154 (2001-11-01), Alderman et al.
Morano S. Joseph
Nguyen Long Bao
Rosenberg , Klein & Lee
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