GB809274A - Improvements in or relating to kick starter mechanisms for motor vehicles - Google Patents

Abstract

809,274. Kick starter mechanism. BIRMINGHAM SMALL ARMS CO. Ltd. Oct. 10, 1956 [Nov. 15, 1955], No. 32560/55. Class 7(5) In a kick starter mechanism for motor vehicles having a kick starter lever adapted to turn the gearbox mainshaft (and consequently the engine crank - shaft) through the medium of a pinion and sector having intermeshing bevel teeth and intermeshing spur gears, one of the spur gears constitutes a ratchet member slidably mounted on the gearbox mainshaft so as to be independent of the rotation thereof and engageable with a complementary ratchet member fixed to the gearbox mainshaft. In Figs. 1-3 the invention is applied to a motor cycle in which the engine has its crank-shaft in line with the fore-and-aft line of the machine. A kick starter lever 1 is fixed to one end of a shaft 2 and on the shaft 2 is also fixed a toothed sector 4 having bevel teeth 5 which mesh with a bevel pinion 6 fixed to the shaft 7. On the shaft 7 is fixed a helical spur gear 9 which meshes with another spur gear 10 having ratchet teeth 11 adapted to engage complementary ratchet teeth 12 on a collar 13 secured to the mainshaft 8 of the gearbox. When the kick starter lever 1 is at rest in its normal position sufficient spring pressure is exerted on the lever 15 via a striker 14 to cause the gear 10 to be held in a position in which the ratchet teeth are out of engagement. The ratchet teeth 11 and 12 may be set at a slight helix angle of about 10. degrees. Fig. 4 shows a modification in which when the kick starter lever (not shown) on hsaft 25 in its normal inoperative position a cam nose 39 on the gear 29 engages a flange 37 to hold the gear 30 so that its ratchet teeth are out of engagement with ratchet teeth 34 of a collar 35 on the gearbox mainshaft 31. Rod 41 limits angular movements of the shaft 25 by abutment of the ends of the sector 24 thereagainst.