Walker having wheels and brakes
First Claim
1. A walker, comprising:
- a main rear frame,said main rear frame having a horizontally disposed tubular member, a pair of rearwardly extending arms integral to opposite ends thereof, and a pair of downwardly extending rear leg members,a rotatably mounted rear wheel disposed at the lower end of each of said rear leg members,a brake member associated with each of said rear wheels,means adapting said rear wheel brake members to hold said rear wheels against rotation when a user of said walker is placing weight below a predetermined threshhold on said walker, thereby indicating that said user is supporting that user'"'"'s body weight by means other than said walker and relying upon the walker during such time as a non-rolling support means,a forward wheel support having an upper end secured to said horizontally disposed tubular member of said main rear frame and having a rotatably xounted forward wheel disposed at a lower end thereof.
1 Assignment
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Accused Products
Abstract
A walker that has wheels to facilitate its movement when it is not being relied upon as a primary means of support and that has brakes to hold said wheels against rotation when it is. The wheels are arranged in a tricycle configuration and brakes are associated with the two rear wheels. A pair of brake pads flank each wheel and are held into braking relation to each wheel by a pair of spring members, there being one spring for each brake, when little or no weight is applied to the walker by the user. The springs are compressed and the wheels are free to rotate when the weight of the user is applied to the walker. The user'"'"'s forearms rest in padded armrests and hand grips are provided forwardly of those arm rests. The walker is adjustable in height and is foldable when not in use.
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Citations
20 Claims
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1. A walker, comprising:
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a main rear frame, said main rear frame having a horizontally disposed tubular member, a pair of rearwardly extending arms integral to opposite ends thereof, and a pair of downwardly extending rear leg members, a rotatably mounted rear wheel disposed at the lower end of each of said rear leg members, a brake member associated with each of said rear wheels, means adapting said rear wheel brake members to hold said rear wheels against rotation when a user of said walker is placing weight below a predetermined threshhold on said walker, thereby indicating that said user is supporting that user'"'"'s body weight by means other than said walker and relying upon the walker during such time as a non-rolling support means, a forward wheel support having an upper end secured to said horizontally disposed tubular member of said main rear frame and having a rotatably xounted forward wheel disposed at a lower end thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A walker, comprising:
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a frame having a pair of laterally spaced rear leg members and a rotatably mounted rear wheel disposed at the lower end of each leg member, said frame further having a forward wheel support and a forward wheel mounted at a lowermost end thereof in rotatable relation to a support surface, and braking means associated with said rear wheels, said braking means being disengaged with said rear wheels when a person is at least partially supporting that person'"'"'s weight on said frame so that said rear wheels are free to rotate at that time, and said braking means being engaged and stopping said rear wheels from rotating when the weight applied to said rear wheels is below a predetermined threshhold. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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- 17. A walker having a forward wheel rotatably xounted to a forward wheel support, a pair of laterally spaced apart rear wheels rotatably mounted to respective members of a pair of rear leg members, said forward and rear wheels being disposed in a tricycle configuration, a braking means associated with each of said rear wheels, said braking means being activated only when the walker is supporting weight below a predetermined threshhold, and said braking means including a bias means that lifts said braking means into braking engagement with said rear wheels when said weight is below said predetermined threshhold.
Specification