FLOOR BRAKE ASSEMBLY FOR AN ARTICLE OF FURNITURE

摘要

A floor brake assembly for an article of furniture includes a base adapted to be affixed to an article of furniture, a plunger having a brake pad at a plunger first end where the brake pad engages a floor and a second position where the brake pad is free of the floor, a pivot arm rotatably mounted to the base, a first activation arm pivotally mounted to the base, and a second activation arm pivotally mounted to the base. The pivot arm is rotated to a braking position and an unbraking position

主权项

1. A floor brake assembly, comprising:
a base adapted to be affixed to an article of furniture and having a pivot point at a base first end, and a bore at a base second end; a plunger extending through the bore and having a brake pad at a plunger first end and head at a plunger second end, wherein the plunger is moveable within the bore between a first position where the brake pad engages a floor and a second position where the brake pad is free of the floor, and wherein the plunger is biased away from the first position; a pivot arm rotatably mounted to the base intermediate the base first end and the base second end, and having a free end with a boss extending normally therefrom, wherein the pivot arm is rotatable between a braking position and an unbraking position; a first activation arm pivotally mounted to the base at the pivot point, and having an activation point engaging the head of the plunger and a cam surface between the mounting to the pivot point and activation point wherein the boss engages the cam surface; a second activation arm pivotally mounted to the base at the pivot point, adjacent to the first activation arm, having a free end biased away from the base, and having a continuous channel, wherein the boss engages the continuous channel, and the continuous channel includes a catch; and a user controllable interface linked to the pivot arm to cause the pivot arm to rotate; wherein when the pivot arm is rotated to the braking position by urging the user controllable interface in a first direction, the boss traverses the continuous channel to stop at the catch while simultaneously engaging the cam surface to urge the activation point of the first activation arm against the head to force the plunger to the first position so that the brake pad engages the floor, and when the pivot arm is rotated to the unbraking position by urging the user controllable interface again in the first direction, the boss traverses the continuous channel out of the catch while simultaneously engaging the cam surface to enable the activation point of the first activation arm to move away from the base, allowing the bias of the plunger to move the plunger to the second position so that the brake pad is free of the floor.