US2010101907A1PendingUtilityA1

Mechanical brake system for a cart

45
Individually held — no corporate assignee on recordPriority: Oct 23, 2008Filed: Feb 19, 2009Published: Apr 29, 2010
Est. expiryOct 23, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Raymond A. Schwager
F16D 2125/26F16D 49/00F16D 2121/14
45
PatentIndex Score
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Claims

Abstract

A mechanical brake system for a cart includes a mounting member coupleable to the cart between two wheels of the cart, a cam rotatably coupled to the mounting member, a pair of elongate brake actuators movably coupled to the cam at proximal ends thereof, the elongate brake actuators extending outwardly in opposite directions from the cam, and a pair of brake members pivotably coupled to the mounting member on opposite sides of the cam, the brake members movably coupled to distal ends of the brake members. The brake system can also include an actuator (e.g., pedal) coupled to the cam, the actuator mechanically actuatable by a user to rotate the cam, said rotation of the cam causing the translation of the elongate brake actuators relative to the brake members so as to pivot the brake members into and out of engagement with the two wheels of the cart.

Claims

exact text as granted — not AI-modified
1 . A mechanical brake system for a cart, comprising:
 a mounting member coupleable to the cart between two wheels of the cart;   a cam rotatably coupled on the mounting member;   a pair of elongate brake actuators movably coupled to the cam at proximal ends thereof, the elongate brake actuators extending outwardly in opposite directions from the cam;   a pair of brake members pivotably coupled to the mounting member on opposite sides of the cam, the brake members movably coupled to distal ends of the brake members; and   an actuator coupled to the cam, the actuator mechanically actuatable by a user to rotate the cam, said rotation of the cam causing the translation of the elongate brake actuators relative to the brake members so as to pivot the brake members into and out of engagement with the two wheels of the cart.   
   
   
       2 . The brake system of  claim 1 , wherein the elongate brake actuators are brake rods. 
   
   
       3 . The brake system of  claim 1 , wherein the mounting member is coupleable to a back plate of the cart between two rear wheels of the cart. 
   
   
       4 . The brake system of  claim 1 , wherein the cam is configured to rotate between about  30  degrees and about  45  degrees. 
   
   
       5 . The brake system of  claim 1 , wherein the brake members are configured to apply pressure on the tires of the wheels to inhibit their rotation when the cam is actuated to pivot the brake members into engagement with the wheels via the elongate brake actuators. 
   
   
       6 . The brake system of  claim 1 , wherein the actuator is a foot pedal actuatable by a user's foot. 
   
   
       7 . The brake system of  claim 1 , wherein the cam is rotatable in one direction to move the brake members into engagement with the wheels of the cart, and rotatable in an opposite direction to disengage the brake members from the wheels. 
   
   
       8 . The brake system of  claim 1 , wherein the elongate brake actuators have generally the same length. 
   
   
       9 . The brake system of  claim 1 , wherein the cam is coupled to the mounting member generally at the center of the mounting member. 
   
   
       10 . The brake system of  claim 1 , wherein the cart is a four-wheeled cart. 
   
   
       11 . A mechanical brake system for a cart, comprising:
 a mounting member coupleable to a back plate of the cart between two rear wheels of the cart;   a cam rotatably coupled on the mounting member;   a pair of elongate brake actuators movably coupled to the cam at proximal ends thereof, the elongate brake actuators extending outwardly in opposite directions from the cam;   a pair of brake members pivotably coupled to the mounting member on opposite sides of the cam, the brake members movably coupled to distal ends of the brake members; and   a pedal coupled to the cam, the pedal mechanically actuatable by a user's foot to rotate the cam, said rotation of the cam causing the translation of the elongate brake actuators relative to the brake members so as to pivot the brake members into and out of engagement with tires of the two rear wheels of the cart.   
   
   
       12 . The brake system of  claim 11 , wherein the elongate brake actuators are brake rods. 
   
   
       13 . The brake system of  claim 11 , wherein the cam is configured to rotate between about 30 degrees and about 45 degrees. 
   
   
       14 . The brake system of  claim 11 , wherein the brake members are configured to apply pressure on the tires of the wheels to inhibit their rotation when the cam is actuated to pivot the brake members into engagement with the wheels via the elongate brake actuators. 
   
   
       15 . The brake system of  claim 11 , wherein the cam is rotatable in one direction to move the brake members into engagement with the wheels of the cart, and rotatable in an opposite direction to disengage the brake members from the wheels. 
   
   
       16 . The brake system of  claim 11 , wherein the elongate brake actuators have generally the same length. 
   
   
       17 . A mechanical brake system for a cart, comprising:
 a mounting member coupleable to a back plate of the cart between two rear wheels of the cart;   a cam rotatably coupled on the mounting member;   at least one elongate brake actuator movably coupled to the cam at a proximal end thereof, the elongate brake actuator extending outwardly from the cam toward one of the two rear wheels of the cart;   a brake member pivotably coupled to the mounting member and movably coupled to a distal end of the brake members; and   a pedal coupled to the cam, the pedal mechanically actuatable by a user's foot to rotate the cam, said rotation of the cam causing the translation of the elongate brake actuator relative to the brake member so as to pivot the brake member into and out of engagement with a tire of one of the two rear wheels of the cart.   
   
   
       18 . The brake system of  claim 17 , wherein the at least one elongate brake actuator comprises two elongate brake actuators extending outwardly from opposite sides of the cam. 
   
   
       19 . The brake system of  claim 18 , wherein the elongate brake actuators comprise brake rods. 
   
   
       20 . The brake system of  claim 17 , wherein the cam is configured to rotate between about 30 degrees and about 45 degrees. 
   
   
       21 . The brake system of  claim 17 , wherein the brake member is configured to apply a pressure on the tire to inhibit rotation of the corresponding wheel when the cam is actuated to pivot the brake member into engagement with the wheel via the elongate brake actuator. 
   
   
       22 . The brake system of  claim 17 , wherein the cam is rotatable in one direction to move the brake member into engagement with one of the rear wheels of the cart, and rotatable in an opposite direction to disengage the brake member from said wheel. 
   
   
       23 . The brake system of  claim 17 , wherein the cart is a four-wheeled cart.

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