Cart brake and cart with user-operable brake
View Patent ↗A brake for a wheeled cart of the type having a container supported on at least a pair of rear wheels carried on a cart frame, that includes a brake manipulator pivotally mounted on the cart frame in, and including a handle portion and a cam portion. An elongate brake member is pivotally attached to the manipulator and extends into a position proximate the at least one. A braking element is positioned on a lower end of the brake member for being selectively moved into and out of frictional braking engagement with a tread surface of the wheel.
1. A brake for a wheeled cart of the type having a container supported on at least a pair of rear wheels carried on a cart frame, comprising:
(a) a brake manipulator pivotally attached to the cart frame for applying the brake to at least one of the rear wheels, further comprising a handle portion for grasping the brake manipulator, a cam portion for operating the brake, a handle pivot opening located near a top portion of the cam portion at a point of pivotal attachment to the cart, and a brake pivot opening displaced from the handle pivot opening by a suitable distance and located near a bottom portion of the cam portion;
(b) an elongate brake member pivotally attached to the brake manipulator at the brake pivot opening and extending into a position proximate the at least one of said rear wheels; and
(c) a braking element positioned on a lower end of the rake member for being selectively moved into and out frictional braking engagement with a tread surface of the wheel,
wherein the brake member further comprises a U-shaped channel attached to the brake manipulator at the point of pivotal attachment and a rod attached to the U-shaped channel and to the braking element.
2. The brake according to claim 1 wherein the U-shaped channel is attached to the rod via a threaded connection and further comprises a pair of openings on each side of a pair of upper edges of the U-shaped channel that aligns with the brake pivot opening of the brake manipulator.
3. The brake according to claim 2 wherein a brake pivot pin is locked with a brake pivot retainer connecting the U-shaped channel and the brake manipulator through the pair of openings of the U-shaped channel and the brake pivot opening.
4. The brake according to claim 1 wherein the pivotal attachment of the brake manipulator to the cart is achieved by a nut and bolt connection attached through an opening in the cart frame and the handle pivot opening.
5. The brake according to claim 1 , wherein the braking element comprises a terminal portion of the rod extending perpendicularly across a width of the tread surface of the wheel.
6. The brake according to claim 5 wherein the suitable distance is correlated to the distance between the tread surface of the wheel and the terminal portion of the rod when the handle portion of the brake manipulator is in the free position such that when the handle portion is in the braked position, the tread surface of the wheel is in contact with the terminal portion of the rod.
7. The brake according to claim 1 , further comprising a retainer ring positioned on the cart frame below the handle pivot opening and proximate the at least one rear wheel within which the elongate brake member is positioned for guiding the brake member in its movement into and out of braking engagement.
8. The brake according to claim 7 further comprising a handle grip covering the handle portion of the brake manipulator.
9. A brake for a wheeled cart of the type having a container supported on at least a pair of rear wheels carried on a cart frame, comprising:
(a) a brake manipulator pivotally attached to the cart frame for applying the brake to at least one of the rear wheels, further comprising a handle portion for grasping the brake manipulator, a cam portion for operating the brake, a handle pivot opening located near a top portion of the cam portion at a point of pivotal attachment to the cart, and a brake pivot opening displaced from the handle pivot opening by a suitable distance and located near a bottom portion of the cam portion;
(b) an elongate brake member pivotally attached to the brake manipulator at the brake pivot opening and extending into a position proximate the at least one wheel and further comprising a U-shaped channel attached to the brake manipulator at the point of pivotal attachment and a rod attached to the U-shaped channel; and
(c) a braking element positioned on a lower end of the brake member for being selectively moved into and out of frictional braking engagement with a tread surface of the wheel, and comprising a terminal portion of the rod extending perpendicularly across a width of the tread surface of the wheel.
10. The brake according to claim 9 further comprising a retainer ring positioned on the cart frame below the handle pivot opening and proximate the at least one rear wheel within which the elongate brake member is positioned for guiding the brake member in its movement into and out of braking engagement.
11. The brake according to claim 9 wherein a brake pivot pin is locked with a brake pivot retainer thereby connecting the U-shaped channel and the brake manipulator through the brake pivot opening and a pair of openings on each side of a pair of upper edges of the U-shaped channel.
12. The brake according to claim 11 wherein the U-shaped channel is attached to the rod via a threaded connection.
13. A brake according to claim 11 wherein the suitable distance is correlated to the distance between the tread surface of the wheel and the terminal portion of the rod when the handle portion of the rake manipulator is in the free position such that when the handle portion is in the braked position, the tread surface of the wheel is in contact with the terminal portion of the rod.
14. A brake for a wheeled cart of the type having a container supported on at least a pair of rear wheels carried on a Cali frame, comprising:
(a) a brake manipulator pivotally attached to the cart frame for applying the brake to at least one of the rear wheels, further comprising a handle portion for grasping the brake manipulator, a cam portion for operating the brake, a handle pivot opening located near a top portion of the cam portion at a point of pivotal attachment to the cart, and a brake pivot opening displaced from the handle pivot opening by a suitable distance and located near a bottom portion of the cam portion;
(b) an elongate brake member pivotally attached to the brake manipulator at the brake pivot opening and extending into a position proximate the at least one wheel and further comprising a U-shaped channel attached to the brake manipulator at the point of pivotal attachment and a rod attached to the U-shaped channel via a threaded attachment;
(c) a retainer ring positioned on the cart frame below the handle pivot opening and proximate the at least one rear wheel within which the elongate brake member is positioned for guiding the brake elongate member in its movement into and out of braking engagement;
(d) a brake pivot pin locked with a brake pivot retainer the by connecting the U-shaped channel and the brake manipulator through the brake pivot opening and a pair of openings on each side of a pair of upper edges of the U of the U-shaped channel; and
(e) a braking element positioned on a lower end of the brake member for being selectively moved into and out of frictional braking engagement with a tread surface of the wheel, and comprising a terminal portion of the rod extending perpendicularly across a width of the tread surface of the wheel.
15. The brake according to claim 14 wherein the suitable distance is correlated to the distance between the tread surface of the wheel and the terminal portion of the rod when the handle portion of the brake manipulator is in the free position such that when the handle portion is in the braked position, the tread surface of the wheel is in contact with the terminal portion of the rod.
16. The brake according to claim 15 further comprising a handle grip covering the handle portion of the brake manipulator.