Sheet conveying device with axially disengaged transmitter of restraining force

A sheet conveying apparatus for conveying a sheet, said apparatus comprising:

• a first rotatable member for conveying a sheet;
• a driving source for driving said first rotatable member;
• driving force transmitting means for transmitting a driving force of said driving source to said first rotatable member so as to rotate said first rotatable member by said driving force of said driving source, said driving force transmitting means having a second rotatable member rotatable around an axis different from a rotation axis of said first rotatable member;
• a manual operating member for manually operating said first rotatable member;
• detent means for producing a rotation restraining force of said first rotatable member;
• restraining force transmitting means for transmitting a restraining force from said detent means to said driving force transmitting means, said restraining force transmitting means being rotatably supported on the same axis as said second rotatable member and having a third rotatable member shiftable between a first position for contacting and transmitting said restraining force to said second rotatable member and a second position being apart from and not for transmitting said restraining force to said second rotatable member;
• and
• connecting-disconnecting means for normally holding said third rotatable member at said second position and moving said third rotatable member to said first position only when said first rotatable member is driven by said driving source.