Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1999-02-22
2000-07-25
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188 725, 188345, B60T 1300
Patent
active
060928778
ABSTRACT:
An all terrain vehicle (ATV) with a dual hydraulic brake system. The brake system includes a first master cylinder, a pair of front hydraulic brake units, each one being associated with one of the ATV's front wheels, a rear brake unit associated with the ATV's rear wheels, a hand-operable brake lever mounted to the handlebars and operatively connected to the first master cylinder, and hydraulic linking the first master cylinder to the brake units so that when the brake lever actuates the first master cylinder brakes are applied to both the front and the back wheels of the ATV. A second master cylinder is connected to a second hand or foot-operable brake lever carried by the chassis near one of the footrests. Hydraulic connections link the second master cylinder to only the rear brake unit so that operation of the second brake lever actuates only the rear brake. The rear brake unit preferably is a disc brake that includes a caliper body and a stepped piston disposed within a stepped bore formed in the caliper body. The stepped piston and the stepped bore together defining two separate hydraulic fluid chambers. The first master cylinder is connected to one of the hydraulic fluid chambers and the second master cylinder is connected to the other hydraulic fluid chamber so that the piston can be actuated independently by either master cylinder, thus permitting the rear brake to be applied without activating the front brakes of the ATV.
REFERENCES:
patent: 3473634 (1969-10-01), Strifler et al.
patent: 3486591 (1969-12-01), Scheffler
patent: 3502181 (1970-03-01), Lepelletier
patent: 3601233 (1971-08-01), Marschall et al.
patent: 3750857 (1973-08-01), Marschall et al.
patent: 3752272 (1973-08-01), Ooka
patent: 3868001 (1975-02-01), Yokoi
patent: 3885392 (1975-05-01), Haraikawa
patent: 3999807 (1976-12-01), Haraikawa
patent: 4024932 (1977-05-01), Fay
patent: 4161239 (1979-07-01), Karasudani
patent: 4494800 (1985-01-01), Hayashi
patent: 4598954 (1986-07-01), Hayashi
patent: 5036960 (1991-08-01), Schenk et al.
patent: 5219211 (1993-06-01), Tsuchida et al.
patent: 5273346 (1993-12-01), Tsuchida et al.
patent: 5363943 (1994-11-01), Iwashita et al.
patent: 5372408 (1994-12-01), Tsuchida et al.
patent: 5544946 (1996-08-01), Toyoda et al.
patent: 5564534 (1996-10-01), Toyoda et al.
patent: 5620237 (1997-04-01), Iwashita et al.
patent: 5971499 (1999-10-01), Pape et al.
Rasidescu Mihai
Wood William
Oberleitner Robert J.
Polaris Industries Inc.
Siconolfi Robert A.
LandOfFree
All terrain vehicle with dual hydraulic brake system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with All terrain vehicle with dual hydraulic brake system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All terrain vehicle with dual hydraulic brake system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1331710