Motor vehicles – Frame – With structure adapted to receive or support a motor,...
Reexamination Certificate
2000-07-21
2001-09-11
Dickson, Paul N. (Department: 3618)
Motor vehicles
Frame
With structure adapted to receive or support a motor,...
C180S219000, C116S062100, C073S493000
Reexamination Certificate
active
06286618
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a milometer device. More particularly, the present invention relates to a milometer device which can be detached and replaced easily.
Referring to
FIGS. 1 and 2
, a conventional milometer device has a mileage recorder
30
having a rotor
31
, a first pinion
24
engaging with the rotor
31
, a second pinion
24
a
engaging with the first pinion
24
, a first gear
23
engaging with the second pinion
24
a
, and a second gear
23
a
engaging with the first gear
23
. The second gear
23
a
is disposed on a transmission gear box
20
. An engine
10
has a drive shaft
11
fastening a first sprocket wheel
12
. The transmission gear box
20
has a driven shaft
11
fastening a second sprocket wheel
22
. A chain
13
surrounds the first sprocket wheel
12
and the second sprocket wheel
22
. Since the mileage recorder
30
is disposed in the transmission gear box
20
, the transmission gear box
20
should be detached in order to replace a broken mileage recorder
30
.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a milometer device which can be detached and replaced easily.
Accordingly, an engine has a drive shaft fastening a first sprocket wheel. A transmission gear box is disposed on a vehicle frame. The transmission gear box has a driven shaft fastening a second sprocket wheel. A chain surrounds the first sprocket wheel and the second sprocket wheel. A hexagonal nut is disposed on the driven shaft. The hexagonal nut has a center hole. A driven shaft is disposed on a transmission gear box. A milometer device is disposed on the driven shaft. The milometer device comprises a mileage recorder having a hollow post and a round through hole communicating with the hollow post, a hollow disk disposed on the hollow post, a washer disposed on the hollow disk, a C-shaped retainer ring disposed on the washer and enclosing the hollow post, and a sleeve inserted in the mileage recorder. The sleeve has a hexagonal hole and two click recesses. The hexagonal hole of the sleeve receives the hexagonal nut. The hollow disk has two click protrusions inserted in the click recess of the sleeve. A positioning bar is disposed on the vehicle frame. A positioning plate has a circular hole matching the round through hole of the mileage recorder, and a circular aperture matching the positioning bar. A screw fastens the positioning plate and the positioning bar together. A flush nut engages with the screw. A bolt fastens the positioning plate, the mileage recorder, and the hexagonal nut together via the circular hole of the positioning plate, the round through hole of the mileage recorder, and the center hole of the hexagonal nut.
REFERENCES:
patent: 5495758 (1996-03-01), Griffen et al.
Dickson Paul N.
Jenn Jianq Co. Ltd.
Kamrath Alan
Rider Bennett Egan & Arundel LLP
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