Walker with automatic braking mechanism

Claim 1

A walker comprising a basket, a handle for use in pushing said walker along an upwardly facing surface, a plurality of legs connected to said basket and to said handle, each said leg having a lower end portion leading into a lower end, a wheel and a braking element associated with each said lower end, and means for automatically actuating said braking elements by causing same to engage the upwardly facing surface if a predetermined weight is applied to said handle or to said basket thus to stop said walker, wherein said means for automatically actuating each said braking element include a sleeve with an upper end and a lower end and surrounding said lower end portion with an annular space between said lower end portion and said sleeve, and a coil spring within said annular space and having an upper end that is fixed with respect to said lower end portion of its associated said leg, said spring also having a lower end that is fixed with respect to its associated said sleeve, and wherein said wheel is affixed to said sleeve near its said lower end with the axis of rotation of said wheel perpendicular to the axis of said sleeve and said wheel having a rim located below said lower end of said sleeve.