JPS57196130A - Tester for saddle durability - Google Patents

Abstract

PURPOSE:To enable to perform a test for durability under a condition being similar to a real running state, by a method wherein a saddle is vibrated vertically and rocked horizontally, meanwhile, a weight is vertically moved, and an adapter for vibration test is vertically rocked. CONSTITUTION:A saddle A is attached, a motor 7 starts to run, a square columnar body 10 and a weight 5a are lowered, and an adapter is placed on the saddle A. Then, a motor 15 for vertical vibration starts to run, rotation is transferred to an eccentric amount regulating segment 22, a screw shaft 26, and a shaft 27 via a pulley 16, a belt 19 a pulley 18 a rotary shaft 20, and a disc 22 to perform an eccentric motion, the motion is converted into a vertical movement by a crank 31, and a saddle support shaft 53 and a vertical vibrating body 6 are transferred to a bracket 54 and the saddle A via a toroidal body 32 to move them vertically. Meanwhile, with a rocking motor 36 started, a rotation is transferred to a lower side metal 40, a rocking angle regulating shaft 41, and an upper side metal 42 through an output shaft 37, an eccentric disc 38, and a pin 39 to move them vertically, the movement is converted into a rocking movement by means of an arm 48 to transfer it to a rotary shaft 50, and the rocking movement is transferred to the saddle support shaft 53 and the bracket 54 through a Schmidt coupling 52 to perform a horizontal rocking of them.