Ricoh Company, Ltd.

Kabushiki Kaisha Ricoh

Sakae Ohta

Tatsuo Tani

Koichi Suzuki

Yasumori Nagahara

Kiyozo Hashizume

The powder material transportation apparatus for transporting powder materials such as developer powder, by a rotating member such as a coil is provided with an agitator for destroying a bridge of powder material which is apt to be formed in an upper portion of the rotating member. The diameter or pitch of a rotating coil member is designed to be greater in a transportation termination portion than in a transportation initiation portion, whereby the powder material transportation force is increased in the transportation termination portion and formation of the bridge of powder material is prevented.

Powder material transportation apparatus

A mechanism for driving a movable body including a movable body reciprocatingly movable along guide members, a member for driving said movable body reciprocatingly, a wire for connecting the movable body with the driving member, a tension member arranged in a slack portion of the wire during the time of advancing movement of the movable body and elastic means for providing a strong or a weak tension force to the tension member, the weak tension force being applied to the tension member during advancing movement of the movable body and the strong tension force being applied to the tension member during returning movement of the movable body.

Growing community of inventors

Tokyo, Japan

Sakae Ohta