Machine element or mechanism – Control lever and linkage systems – Hand operated
Reexamination Certificate
2000-02-14
2001-04-10
Green, Mary Ann (Department: 3682)
Machine element or mechanism
Control lever and linkage systems
Hand operated
C074S502200, C188S019000, C188S024160
Reexamination Certificate
active
06212969
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a brake device for a walker. The brake device includes two rotatable members engaged with each other and each rotatable member is connected to a brake cable so that either one of the brake cables is pulled, the two brake cables are actuated.
BACKGROUND OF THE INVENTION
A conventional brake device for a walker which assists disable persons to move generally includes four legs each having a wheel and two handles each having a brake lever connected thereto. The disable persons can hold the two handles and move the walker by the wheels. The walker includes a right side wheel brake mechanism and a left side wheel mechanism. The right side wheel brake mechanism is controlled by one of the brake levers and the left side wheel brake mechanism is controlled by the other brake lever. The right side wheel brake mechanism and the left side wheel brake mechanism allow the disable persons to brake the right wheel or the left wheel in separate actions. However, for a disable person, he/she could be able to use only one hand to operate one of the two brake levers so that it involves a potential dangerous situation that when the walker is moved at a certain speed, only one side wheel is stopped suddenly, the walker could fall or looses its balance.
The present invention intends to provide a brake device that includes two rotatable members engaged with each other. Each rotatable member is connected to a brake cable so that when one of the brake cables is pulled, the other brake cable can also be pulled to let the two brake mechanisms be actuated simultaneously.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a brake device comprising a box having a first rotatable member and second rotatable member respectively and rotatably received therein. The first rotatable member has first teeth defined in an outside thereof and a first curved slot is defined in the first rotatable member. The second rotatable member has second teeth defined in an outside thereof and a second curved slot is defined in the second rotatable member. The first teeth are engaged with the second teeth. A first brake cable is connected to the first rotatable member and a second brake cable is connected to the second rotatable member.
A first operation cable has one end connected to a brake lever and the other end of the first operation cable has an end member which is movably received in the first curved slot. A second operation cable has one end connected to the other brake lever, and the other end of the second operation cable has an end member which is movably received in the second curved slot.
The object of the present invention is to provide a brake device of a walker for disable persons, the device has two rotatable members respectively connected to a brake cable so that whichever brake lever is pulled, the two side brake mechanisms are actuated.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
REFERENCES:
patent: 5339929 (1994-08-01), Chern
patent: 5431255 (1995-07-01), Tsuchie
patent: 0907754 (1946-03-01), None
patent: 424814 (1935-02-01), None
Green Mary Ann
Rosenberg , Klein & Lee
LandOfFree
Brake device for simultaneously actuating two brake mechanisms does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brake device for simultaneously actuating two brake mechanisms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake device for simultaneously actuating two brake mechanisms will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2464118