Shift assistant device and hub embedded transmission having the device

• Main Authors: JUNG TAE JIN, YOO MOON SOO, AN SEONG CHEOL, YOO HYUK
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2018
• Subjects: BLASTING; CYCLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; POWERED PROPULSION OF SLEDGES OR; RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; THERMAL INSULATION IN GENERAL; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES; TRANSPORTING; WEAPONS

The invention relates to a speed change operation power-assisting device and a hub built-in transmission having the device. The speed change operation power-assisting device includes: a lever controlring having a rotation restricting convex portion and a one-way inclined groove formed on an outer peripheral surface; an angle control member which is located on an inner peripheral side of the actuator, and formed on the outer circumference to accommodate the a rotation restricting concave portion of the rotation restricting convex portion; a pressing member supported between the one-way inclined groove and an inner circumferential surface of the driver; and an elastic connecting body connected to the a rod control ring elastically supporting the rod control ring between the rod control ringand the angle control member; a fixing and support member positioned at the shaft to rotatably support the driver with a bearing medium; and a return spring which is coupled between the angle controlpart and the fixing and su