Gear knocking sound preventing device for transmission

Details Gear knocking sound preventing device for transmission Gear knocking sound preventing device for transmission

F - Mech Eng,Light,Heat,Weapons

16

H

74/187

F16H 3/22 (2006.01) F16H 61/00 (2006.01) F16H 63/20 (2006.01) F16H 63/30 (2006.01)

Patent

CA 2025260

GEAR KNOCKING SOUND PREVENTING DEVICE FOR TRANSMISSION ABSTRACT OF THE DISCLOSURE A gear knocking sound preventing device for a trans- mission having a rotatable main shaft and a forward stage low speed shift shaft, a forward stage high speed shift shaft, and a forward stage maximum speed and reverse shift shaft. These latter three shift shafts are selectively axially movable by actuation of a shift and select lever mounted on a shift and select shaft. A gear knocking sound preventing device is provided and includes a cam mechanism having a first cam disposed on the shift and select shaft, and a second cam disposed on the forward stage low speed shift shaft so as to be engagable and disengagable with the first cam. The first cam is activated by rotation of the shift and select shaft and is brought into engagement with the second cam during reverse shifting so that the forward stage low speed shift shaft is moved slightly axially to activate a forward stage synchronous meshing mechanism to thereby stop the rotation of the main shaft of the transmission.

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