Brakes – Vehicle
Patent
1997-04-17
1999-04-20
Graham, Matthew C.
Brakes
Vehicle
2802421, F16P 6514, A61G 500
Patent
active
058949127
ABSTRACT:
A wheelchair braking device (10) adapted to automatically engage when the wheelchair (12) to which the device (10) is mounted is unoccupied. The braking device (10) includes a support structure (28) to which is pivotably mounted a sensing lever (14) and a braking lever (22). A biasing element (30) is coupled to the braking lever (22) to bias the braking lever (22) in a first rotational direction relative to the support structure (28) and into engagement with a wheel (32) of the wheelchair (12). The sensing and braking levers (14, 22) are interconnected such that the biasing element (30) operates through the braking lever (22) to bias the sensing lever (14) in a second rotational direction relative to the support structure (28), corresponding to a brake engagement position for the sensing lever (14). As such, the interconnection between the sensing and braking levers (14, 22) causes the braking lever (22) to rotate in a direction opposite to the first rotational direction, thereby disengaging the braking lever (22) from the wheel (32), when the sensing lever (14) is caused to rotate in a direction opposite to the second rotational direction, corresponding to a brake disengagement position for the sensing lever (14). The braking device (10) may further include a hand lever (20) that is interconnected with the sensing lever (14), such that the hand lever (20) is operable to pivot the sensing lever (14) from the engagement position to the disengagement position.
REFERENCES:
patent: 2753919 (1956-05-01), Sill
patent: 3301574 (1967-01-01), Good
patent: 3302757 (1967-02-01), Eagleson, Jr. et al.
patent: 3529700 (1970-09-01), Marshall
patent: 4320818 (1982-03-01), Knoche
patent: 4350227 (1982-09-01), Knoche
patent: 4476964 (1984-10-01), Broman
patent: 4623043 (1986-11-01), Babilas
patent: 5203433 (1993-04-01), Dugas
patent: 5294141 (1994-03-01), Mentessi et al.
patent: 5358266 (1994-10-01), Roth et al.
Dobben Trust Steven L.
Graham Matthew C.
Hartman Domenica N.S.
Hartman Gary M.
LandOfFree
Wheelchair braking device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wheelchair braking device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wheelchair braking device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2241715