Motor vehicles – Special wheel base – Having only two wheels
Reexamination Certificate
2001-03-30
2003-09-23
Boehler, Anne Marie (Department: 3611)
Motor vehicles
Special wheel base
Having only two wheels
C280S835000
Reexamination Certificate
active
06622811
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a fuel tank mounting structure for a scooter, capable of increasing freedom of designing a fuel tank and of facilitating mounting a fuel tank on the body of the scooter.
BACKGROUND ART
Generally, the fuel tank of a scooter is disposed under a footboard on which driver's feet may rest. A fuel tank mounting structure will be described.
Referring to
FIG. 6
showing a conventional fuel tank mounting structure in a sectional view, a fuel tank
100
is integrally provided with a flange
101
, a plurality of sets each of a cushion rubber member
102
and a collar
103
are incorporated into the flange
101
. Stays
105
are attached to right and left footboard support frames
104
(only one of the floorboard support frames is shown) included in a body frame, nuts are welded to the stays
105
, and bolts
107
are passed through the collar
103
and screwed in the nuts
106
to fasten the fuel tank
100
to the footboard support frames
104
.
When forming the fuel tank
100
, for example, by blow-molding a resin parison, a blow mold must be a split mold that can be split along a parting line corresponding to the flange
101
to form the flange
101
. Consequently, the fuel tank
100
must be formed by a limited molding method and the degree of freedom of designing the shape of the fuel tank
100
is reduced.
Since the plurality of bolts
107
is necessary for fastening the fuel tank
100
to the stays, an assembling line for assembling scooters for mass production needs many man-hours for fastening many fuel tanks
100
to the stays with he bolts
107
.
Accordingly, it is an object of the present invention to provide a fuel tank mounting structure for a scooter, capable of increasing freedom of designing a fuel tank and of facilitating mounting a fuel tank on the body of the scooter.
SUMMARY OF THE INVENTION
To achieve the object, according to one aspect of the invention, a fuel tank mounting structure for a scooter has a front frame extended downward from a head pipe, a pair of footboard support frames extended backward from the front frame, a footboard attached to the pair of footboard support frames, and a fuel tank disposed under the footboard, the fuel tank mounting structure comprises fuel tank shelves extended from lower parts of the footboard support frames toward the center of the body of the scooter; wherein the fuel tank is seated on cushions placed on the fuel tank shelves, and is held in place by the footboard.
Since the fuel tank is mounted on the cushions placed on the fuel tank support brackets, and is held in place by the floor board, the degree of freedom of designing the fuel tank is greater than that of designing the conventional fuel tank provided with the flange which is fastened to the footboard support frames with screws, the fuel tank does not need any flange, and any fastening step for fastening the fuel tank to the body of the scooter with screws is not necessary.
The fuel tank mounting structure for a scooter according to another aspect of the invention has the fuel tank shelves extended from lower parts of the footboard support frames toward the center of the body, the fuel tank is seated on the cushion sheets placed on the fuel tank shelves, and the fuel tank is held in place by the footboard. Therefore, the degree of freedom of design of the fuel tank is greater than that of the conventional fuel tank provided with a flange to be fastened to the footboard support frames with screws, the fuel tank does not need any flange, and the procedure for mounting the fuel tank on the body frame does not need any fastening step using screws.
Thus, the fuel tank can be manufactured at a low cost and can be easily mounted on the footboard support frames.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
REFERENCES:
patent: 4340125 (1982-07-01), Watanabe et al.
patent: 4930811 (1990-06-01), Tsukada et al.
patent: 5433286 (1995-07-01), Kumamaru et al.
patent: 6402199 (2002-06-01), Wojnowski
patent: 19485 (1907-08-01), None
patent: 2210340 (1989-06-01), None
patent: 2-193785 (1990-07-01), None
patent: 3-21578 (1991-01-01), None
Birch & Stewart Kolasch & Birch, LLP
Boehler Anne Marie
Honda Giken Kogyo Kabushiki Kaisha
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