Braking shell for shopping cart security device
AssigneeCarttronics, LLC
InventorsJay S. Means, Joseph F. Nebolon
Life of this patent
Estimating the term…
Abstract
A braking member for rotatable mounting on a wheel axle of a hand-driven wheeled vehicle such as a shopping cart has a first part having an opening for mounting on a wheel axle, and a second part releasably secured to the first part and having a braking surface adapted to engage the ground when the braking member is in an operative position. When the braking member becomes worn, the entire member does not have to be removed from the wheel or caster, but instead the second part is released from the first part while the first part remains on the wheel. The second part can only be released using a special tool which is provided to store personnel.
Claims6
A braking shell system for a land vehicle where the vehicle has a wheel mounted thereon for rotation about an axle, the braking shell system comprising:
- a first part formed with an arcuate surface and having a pair of opposed side walls extending therefrom substantially parallel to each other, wherein the sidewalls are oriented substantially perpendicular to the axle and are engaged with the axle to position the first part over a portion of the wheel, and wherein each side wall is formed with a tongue having a side opening and an engagement opening, with each engagement opening having a first dimension, and further wherein the arcuate surface of the first part is formed with a wavy edge at a radial distance from the axle;
- and
- a second part formed with an arcuate surface and having a pair of substantially parallel opposed side walls extending therefrom, wherein the sidewalls are oriented substantially perpendicular to the axle and wherein each side wall is formed with a projection for selective insertion into the side opening on a respective tongue of the first part to hold the side wall of the second part against the tongue of the first part, and wherein each side wall of the second part is formed with an engagement opening having a second dimension smaller than the first dimension of the first part engagement opening to establish a clearance between the engagement opening of the first part and the engagement opening of the second part when the respective engagement openings are aligned with each other, and further wherein the arcuate surface of the second part is formed with a wavy edge for a mating engagement with the wavy edge of the first part to create an integrated arcuate surface for the braking shell.
Dependencies are inferred from the claim text.