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    • 10. 发明专利
    • Improvements in and relating to spring frames for motor cycles
    • GB141413A
    • 1920-04-12
    • GB71119
    • 1919-01-10
    • REGINALD ERIC WALKER
    • B62K25/28
    • 141,413. Walker, R. E, (trading as Walker & Son, R.). Jan. 10, 1919. Spring devices.-In spring frames for motor-cycles, wherein a separate frame 9 carrying the engine and rear wheel 10 is pivoted to the main frame, movement of the wheel frame is restrained by laminated springs 13 secured to this frame adjacent to the pivot, the free ends of the springs engaging with the main frame or a member 14 thereon. As shown, four laminated springs may be used, and in order that the front pair may have a damping action upon the rear pair, the two pairs may be of different strengths The rear frame consists of two side girder members 9, 15, 16, 17 coupled together by transverse struts, triangular structures 9, 19, 24 at the rear being connected to the main frame by links 21 with slackness at the joints 22 or 26. Helical or other springs 23 are arranged between the main frame and the joint 26. A luggage-carrier 18 may be attached to the mem-- bers 19. According to the Provisional Specification, the member 19 may be pivoted to the frame- P and to the link 21. the stay 24 not being mentioned.