摘要:
A vibration generator making a closed loop of a magnetic circuit of a permanent magnet to obtain a high vibrating force while kept small in size, including a reciprocating vibrator having a ring-shaped permanent magnet in a center hole of a ring-shaped weight, a first and second plate springs supporting this reciprocating vibrator at a recessed case and end plate to be able to elastically displace in a thickness direction spanning a first and a second end faces, a tubular toroidal coil passing through a center hole of the permanent magnet and generating a reciprocating vibrating magnetic field for reciprocatingly driving the permanent magnet in the thickness direction, and a columnar core passing through this toroidal coil, the ring-shaped permanent magnet being magnetized in the thickness direction, and the toroidal coil having a lower toroidal coil and an adjoining reversely wound series connected upper toroidal coil coaxial with the same.
摘要:
A connection mechanism connecting a sheet feeding unit, supplying a paper to an image forming apparatus, with the image forming apparatus or other sheet feeding unit, the connection mechanism comprising: a connection member disposed on a frame of the sheet feeding unit and rotatably supported on the frame; and an engaging member disposed on the image forming apparatus or the frame of the other sheet feeding unit, wherein: the connection member is rotated between an engaging position where the connection member engages with the engagement member and a retracting position where the connection member disengages with the engaging member and retracts from the engaging position.