Brake control device for a wheeled walker
A brake control device has a handle, a controlling lever, a driving member and a swing lever. The controlling lever is designed for manipulating by hand and fingers that can be shifted between a braked position, a temporary braked position, and a released position. The swing lever has one end pivotally connected to the handle, and another end pivotally connected with the controlling lever and the driving member. The driving member has a portion slidably abutting an upper wall formed within the handle, and drives braking mechanism by pulling a connecting element via a rotation while the controlling lever moves the driving member either downwardly or upwardly. Preferably, the controlling lever is formed with a stop or protrusion at the lower edge thereof for self-keeping in the braked position for parking the wheeled walker.
1. A brake control device for a wheeled walker, comprising:
a handle connected with the wheeled walker, having a wall formed with a receiving space having a upper wall, a inner edge, and a lower edge;
a swing lever having a second end pivoted within the receiving space by a first pivot member, and a first end which is rotatable about the second end;
a driving member connected with a braking mechanism through a connecting element for braking the wheeled walker, formed with a sliding tip for slidably abutting against the upper wall, a second abutting portion for abutting on the first pivot member, and a pivot hole for pivot at the first end of the swing lever by a second pivoting member; and
a controlling lever formed with a pivot hole for pivoting with the driving member and the swing lever by the second pivoting member, and a first abutting portion for abutting on the first pivot member.
2. The brake control device of claim 1 , wherein the first pivot member is a metal pin mounted on the wall of the handle and pivotally connected the second end of the swing lever within the receiving space.
3. The brake control device of claim 1 , wherein the handle further comprises a handle grip portion for grabbing by hand and a connecting portion for connecting with a push bar of the wheeled walker.
4. The brake control device of claim 1 , wherein the controlling lever has a temporary braked position being rotated about the first pivoting member and moving the driving member by carrying the second pivoting member upwardly, so as to pull the connecting element for driving the braking mechanism to decelerate the wheeled walker.
5. The brake control device of claim 1 , wherein the controlling lever has a released position that keeps a lower side of the controlling lever abutting against the lower edge of the receiving space, in said released position, the braking mechanism is in an un-braking state and allows the wheeled walker moving back and forth.
6. The brake control device of claim 1 , wherein the controlling lever has a stop formed at lower edge thereof, said controlling lever has a braked position being kept by the stop abutting against the inner edge of the receiving space, that moving the driving member upwardly and rotating in a direction for pulling the connecting element upwardly, so as to driving the braking mechanism into a braked state.
7. The brake control device of claim 1 , wherein the first abutting portion is an indent formed at a lower edge of the controlling lever.
8. The brake control device of claim 1 , wherein the second abutting portion is an indent formed at an edge of the driving member.
9. The brake control device of claim 1 , wherein the connecting element is guided by a pin mounted within the receiving space of the handle.
10. The brake control device of claim 1 , wherein the connecting element is biased by a biasing member.
11. The brake control device of claim 10 , wherein the biasing member is a compression spring connected with the connecting element and pulls the driving member moving downwardly.
12. The brake control device of claim 10 , wherein the biasing member is a torsion spring mounted on the braking mechanism and pulls the driving member moving downwardly via the connecting element.