公开(公告)号：US4600323A

公开(公告)日：1986-07-15

申请号：US690270

申请日：1985-01-10

申请人： Mineo Harada ,  Tetsuji Shimojo ,  Kaname Furuya

发明人： Mineo Harada ,  Tetsuji Shimojo ,  Kaname Furuya

IPC分类号： B41J2/22 ,  B41J2/28 ,  B41J3/12 ,  C04B35/04

CPC分类号： B41J2/28

摘要： A printing head assembly having a permanent magnet to attract magnetic members such as armatures to store the strain energy in resilient members such as leaf springs, electro-magnets to cancel the magnetic flux generated by the permanent magnets in order to drive the magnetic members, first yokes related to cores of the electro-magnets, and second yokes forming surfaces by the permanent magnet and serving to form fulcrums of rotation of the magnetic members. The permanent magnet is mounted on the first yoke and the second yoke is mounted on the permanent magnet respectively. In order to equalize attracting force by the permanent magnet among a plurality of armature actuating mechanisms and to adjust the height of the surface of the second yoke, with a predetermined height, there is applied a powdery magnetic material mixed into a bonding agent on at least one side of the permanent magnet. This bonding layer can also absorb some errors caused by the production of the first and second yokes and the permanent magnet.

摘要翻译： 一种具有永磁体的打印头组件，用于吸引诸如电枢的磁性部件，以将应变能存储在诸如片簧，电磁体的弹性部件中，以抵消由永久磁铁产生的磁通以驱动磁性部件，首先 与电磁体的铁心相关的轭和由永磁体形成的第二轭铁形成表面，用于形成磁性构件的旋转支点。 永久磁铁安装在第一磁轭上，第二磁轭分别安装在永磁体上。 为了使多个衔铁动作机构中的永久磁铁的吸引力均等化，并且以规定的高度调整第二磁轭的表面的高度，至少将至少混合有粘结剂的粉状磁性材料 永磁体的一侧。 该接合层还可以吸收由第一和第二轭铁和永磁体的产生引起的一些误差。

公开(公告)号：US4822188A

公开(公告)日：1989-04-18

申请号：US931873

申请日：1986-11-17

申请人： Tetsuji Shimojo ,  Mineo Harada ,  Hideyo Tanaka ,  Kaname Furuya

发明人： Tetsuji Shimojo ,  Mineo Harada ,  Hideyo Tanaka ,  Kaname Furuya

IPC分类号： B41J2/505 ,  B41J2/28 ,  B41J3/04

CPC分类号： B41J2/28

摘要： There is disclosed an improvement upon a cancellation type printing mechanism or a stored energy type printing mechanism having magnetic members, so-called armatures, attracted by a permanent magnet while resiliently deflecting resilient members connected to one end thereof. The magnetic members are associated with corresponding electro-magnets which are adapted to be energized selectively to release the associated magnetic members by cancelling the magnetic attracting force of the permanent magnet, so that the magnetic member is actuated by the energy stored in the corresponding resilient members thereby to drive the printing elements. One end of the magnetic member contacts the magnetic pole surface of the permanent magnet or a yoke mounted on the permanent magnet so as to form a fulcrum for the rotation of the magnetic member. A recess is formed on one side of the magnetic member facing a core of the electro-magnet, so that the magnetic member does not engage the corner of the core of the electro-magnet. According to this construction, the magnetic member is prevented from striking against the corner of the core.

摘要翻译： 公开了一种取消型打印机构或存储能量型打印机构的改进，该打印机构具有磁性部件，所谓的电枢被永久磁铁吸引，同时弹性地偏转与其一端连接的弹性部件。 磁性构件与相应的电磁体相关联，该电磁体适于通过取消永磁体的磁吸引力选择性地释放相关联的磁性构件，使得磁性构件由存储在相应弹性构件中的能量致动 从而驱动打印元件。 磁性构件的一端接触永磁体的磁极表面或安装在永磁体上的磁轭，以形成用于磁性构件旋转的支点。 在磁性构件的面对电磁体的芯部的一侧上形成凹部，使得磁性构件不接合电磁体的芯的角部。 根据该结构，能够防止磁性部件撞击芯部的角部。