Frameless motorcycle
OwnerAndre de Cortanzeinventor
Life of this patent
Estimating the term…
Abstract
A two-wheeled vehicle, such as a motor bicycle is constituted by three self-contained sub-assemblies which are linked to each other and which consist of a central sub-assembly comprising a motor and a gear-box, a front sub-assembly comprising the front wheel of the vehicle, steering elements for said front wheel and front wheel braking means, and a rear sub-assembly comprising the rear wheel of the vehicle, a rear wheel suspension and rear wheel braking means, said front and rear sub-assemblies being connected to each other by said central sub-assembly to which they are directly attached.
Claims9
A frameless two-wheeled motor vehicle comprising a motor assembly including a motor, a front assembly including a steerable front wheel having a horizontal axis, movable front linking means for linking said front assembly to said motor assembly, a rear assembly including a rear wheel, movable rear linking means for linking said rear assembly to said motor assembly, and a steering assembly linked to said front assembly and connected to said motor assembly, said front linking means comprising an upper front linking arm and a lower front linking arm substantially parallel to said upper front linking arm, each one of said front linking arms having a front end and a rear end, the rear ends of said front linking arms being pivotally mounted to said motor assembly about respective substantially horizontal parallel axes, the front end of each front linking arm being movably mounted by means of a ball-and-socket joint on a front supporting plate on which is also mounted, in a cantilever position, an axle for rotationally supporting said front wheel, a front damping spring having an upper end pivotally mounted to said motor assembly and a lower end pivotally mounted on said lower front linking arm, said steering assembly being linked to said front supporting plate, and a front wheel braking device mounted on said front supporting plate.
A two-wheeled motor vehicle, comprising front and rear subassemblies directly attached to a central subassembly,
- said central sub-assembly comprising a motor, a linking member secured to said motor, and a gear-box;
- said front sub-assembly comprising the front wheel of the vehicle, a front axle upon which said front wheel is rotationally mounted, front wheel suspension means, front wheel braking means, and front wheel steering means;
- said rear sub-assembly comprising the rear wheel of the vehicle, a rear axle upon which said rear wheel is rotationally mounted, rear wheel suspension means, and rear wheel braking means,
- said rear wheel suspension means comprising (i) an H-shaped fork having two forward arms connected to said motor and two rearward arms for supporting said axle, (ii) an arm having one end pivotally connected to a lower part of said linking member, and another end, (iii) damping spring means having an upper end pivotally attached to an upper part of said linking member and a lower end pivotally attached to the other end of said arm, and (iv) a first rod member having one end pivotally connected to said lower end of said damping spring means and another end pivotally connected to at least one of the said rearward arms of said H-shaped fork.
Dependencies are inferred from the claim text.