Synchronizer for speed change gear

Abstract

Abstract PURPOSE:To synchronize revolutions of speed change gears for speed changing by providing an acceleration mechanism to increase the revolutionary speed of a sub-shaft by transmitting the revolutionary power of an output shaft. CONSTITUTION:In the case of a shift down operation from the fourth speed to the third speed, when a driver releases an accelerator pedal and sets a speed- change lever from the fourth speed position to the third speed one, a computer 4 disengages a main clutch 1a and shifts a sub-clutch 2h to the neutral position. Then, an acceleration mechanism 2j is operated, and the revolutionary power of an output shaft 2 is transmitted to a sub-shaft 3 via gears 2e and 3f to increase the revolutionary speed of a gear 2c via a gear 3d. The synchronization between the shaft 2 and the gear 2c is detected by detectors 4a and 4b. When the synchronization is obtained, the sub-clutch 2h is engaged with the gear 2c. The output shaft 2 is directly connected to the gear 2c, and at the same time, the main clutch 1a is engaged.

Inventors

• 👤 Akiteru Fujiki
• 👤 藤木　顕輝
• 👤 Shigeru Yoshizawa
• 👤 吉沢　茂

Bibliographic Details