Suspension device for a perambulator, comprising a composite strip of variable stiffness
AssigneeAmpafrance S.A.
InventorJean Bigo
Life of this patent
Estimating the term…
Abstract
A device for slow speed and lightweight vehicles, which includes a body fixed on an underframe of the vehicle, a support articulated on the body, and a spring elastically linking the body and the support, wherein the spring is a composite strip fixed at one of ends thereof, to the body, and directly bearing, at a free end thereof, on the wheel axle.
Claims15
A perambulator having a frame and at least four wheels, each mounted on a wheel axle, at least two of said wheel axles being connected to said frame by suspension devices, each suspension device comprising:
- a body secured to said frame and having a rounded contacting surface, said body including a pin;
- a strip spring having a first end secured to said body at a securing point and a second, free and unsecured end opposite to said first end which bears freely against said wheel axle;
- and
- a movable support assembly mounted for rotation on said pin of said body and which is mounted on said wheel axle, said pin being located between said securing point of said strip spring and said wheel axle wherein in use of the perambulator a downward force exerted on said body bends said strip spring so as to bear on said rounded contacting surface.
A perambulator having a frame and at least four wheels, each wheel being mounted on a wheel axle and at least two of said wheel axles being connected to said frame by suspension devices, each suspension device comprising:
- a body secured to said frame and having a rounded contacting surface, said body including a pin;
- a strip spring having a first end secured to said body at a securing point and a second end opposite to said first end for bearing freely on said wheel axle in an unsecured manner;
- a movable support assembly mounted for rotation on said pin of said body and mounted on said wheel axle, said pin being located between said securing point of said strip spring and said wheel axle;
- and
- a counter strip positioned under said strip spring and having a first end secured to said body near said securing point and a second end for bearing, after a first specified rotation of said movable support assembly, on a stop member which is securely fixed to said support assembly wherein in use of the perambulator a downward force is exerted on said body bends said strip spring so as to bear on said rounded contacting surface.
Dependencies are inferred from the claim text.