Patent ID: 6367994
Filing Date: 2002-04-09
Classification: B41J,F16H

Abstract:
A power transmission switching device provided with a mechanism that two drive transmission systems connected to one driving source are selectively switched, comprising:a first drive transmission gear of a first drive transmission system; a first drive transmission gear of a second drive transmission system; a rocking lever which can be rocked between the first drive transmission gear of said first drive transmission system and the first drive transmission gear of said second drive transmission system, said rocking lever having a fitting cut-out; a planet gear attached to said rocking lever, located between said both drive transmission gears, selectively engaged with said both drive transmission gears by the rock of said rocking lever for transmitting driving force from said driving source; and a locking device for locking said rocking lever in a state that said planet gear is engaged with either of said two drive transmission gears, said locking device comprising: a plunger; and a fitting part contacted by the plunger for insertion into the fitting cut-out of the rocking lever, wherein the first drive transmission gear of said first drive transmission system and the first drive transmission gear of said second drive transmission system are located on both sides of the drive shaft of said driving source, and said first and second drive transmission systems are connected to a drive unit normally and reversely rotated.