Improvements in or relating to front forks for cycles, motorcycles and the like

Abstract

Abstract 534,584. Spring forks. FRANCIS & BARNETT, Ltd., FRANCIS, G. I., and KING, W. A. March 16, 1940, No. 4924. [Class 136 (iii)] In a front spring fork for motor and other cycles of the type in which the fork is pivoted to the steering-pillar, the pivotal movement is cushioned or controlled in one direction by one or more rubber buffers arranged at one side of the pivotal axis, and in the other direction by one or more compression springs arranged at the other side of the axis. In the form shown, a box-like fitting a is secured to the lower end of the steering-pillar c, and is provided with two compartments a<SP>1</SP>, a<SP>2</SP> open at the bottom and separated from each other by a transverse bearing a' for a pivot-pin e. The compartment a<SP>1</SP> receives a rubber buffer f, and the compartment a<SP>2</SP> is formed with two sockets f<SP>1</SP> to receive a pair of compression springs f<SP>2</SP>. A fitting b secured to the upper ends of the fork limbs d and formed as an integral part of the fork crown is provided on each side with a perforated lug to receive each end of the pivot pin e, and is also formed with fore and aft platforms b<SP>2</SP>, b' buttressed by webs b<SP>4</SP> and adapted to bear against the buffer f and spring f<SP>2</SP>. In the case of excessive braking stresses, the rear platform b<SP>3</SP> comes into contact with a stop surface a<SP>5</SP> on the fitting a.

Inventors

No inventors recorded.

Bibliographic Details