公开(公告)号：US06951424B2

公开(公告)日：2005-10-04

申请号：US10426898

申请日：2003-04-29

Applicant: Hitoshi Mutai ,  Kenichi Hoshina

Inventor： Hitoshi Mutai ,  Kenichi Hoshina

IPC: H02K5/173 ,  F16C17/08 ,  H02K5/167 ,  H02K7/06 ,  H02K37/14 ,  F16C19/10

CPC classification number: F16C17/08 ,  F16C27/08 ,  F16C2380/27 ,  H02K7/06 ,  H02K7/081 ,  Y10S384/902

Abstract: A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft, and a bearing holder defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.

Abstract translation: 电动机包括转子部分，转子轴具有端部部分，以及定子部分，其包括与转子部分相对设置的轭部。 电动机还配备有具有轴承部件的轴承组件，轴承部件包括具有凹部的主轴承部和容纳在凹部中的滚珠轴承，其中滚珠轴承可旋转地支撑转子轴的端部，并且轴承保持架 限定了沿轴向方向可滑动地保持轴承构件的主轴承部分的中心通孔，其中轴承座由烧结压块构成。

公开(公告)号：US06781797B2

公开(公告)日：2004-08-24

申请号：US10121984

申请日：2002-04-12

Applicant: Hitoshi Mutai ,  Yoshiaki Koshida

Inventor： Hitoshi Mutai ,  Yoshiaki Koshida

IPC: G11B555

CPC classification number: G11B21/02 ,  F16H57/0498 ,  G11B7/08582 ,  G11B7/22 ,  Y10T74/19991

Abstract: A motor is disclosed comprising a motor case and a rotating shaft for the motor having a portion within the motor case and a portion extending outside of the motor case. A feed screw is formed on the extending portion of the rotating shaft. The feed screw threadedly engages with a moving body which moves back and forth along an axial direction of the rotating shaft. The feed screw has a threaded portion, a top portion of this threaded portion being provided with a concavity to store lubricating oil.

Abstract translation: 公开了一种电动机，其包括电动机壳体和用于电动机的旋转轴，其具有电动机壳体内的一部分和延伸到电动机壳体外部的部分。 在旋转轴的延伸部分上形成有进给螺杆。 进给螺杆与沿着旋转轴的轴向方向前后移动的移动体螺纹接合。 进料螺杆具有螺纹部分，该螺纹部分的顶部设有凹部以储存润滑油。

公开(公告)号：US06825587B2

公开(公告)日：2004-11-30

申请号：US09987086

申请日：2001-11-13

Applicant: Katsuhide Yajima ,  Hitoshi Mutai ,  Toshio Yamamoto

Inventor： Katsuhide Yajima ,  Hitoshi Mutai ,  Toshio Yamamoto

IPC: H02K516

CPC classification number: H02K7/083 ,  H02K37/14

Abstract: The present invention provides a motor having an urging member for urging a rotor disposed oppositely to a stator in the axial direction, in which the rotor is rotated in a state under an urging force of the urging member, characterized in that a positional regulation part (bearing) for regulating the position of the rotor in a thrust direction under the urging force is integrally provided in a coil bobbin made of resin which has metallic stator cores making up the stator formed by insert molding. Therefore, the positional accuracy of the positional regulation part (bearing) with respect to the stator is made better. Thereby, the positional accuracy of the rotor with respect to the stator is also improved, so that the torque up is enabled.

Abstract translation: 本发明提供一种电动机，其具有推动构件，该施力构件用于推动与轴向相对定子的转子，转子在施力构件的作用力的作用下转动，其特征在于，位置调节部 轴承）一体地设置在由树脂形成的线圈架中，所述线圈架具有构成通过嵌入成型形成的定子的金属定子铁芯。 因此，使位置调整部（轴承）相对于定子的位置精度更好。 因此，转子相对于定子的位置精度也提高，从而能够实现转矩提升。

公开(公告)号：US06747382B2

公开(公告)日：2004-06-08

申请号：US10015565

申请日：2001-12-17

Applicant: Katsuhide Yajima ,  Hitoshi Mutai ,  Toshio Yamamoto

Inventor： Katsuhide Yajima ,  Hitoshi Mutai ,  Toshio Yamamoto

IPC: H02K516

CPC classification number: H02K7/081

Abstract: In a small-sized motor used for lens drive, to provide the motor which is easy to attach to another member and gives space saving. Further, to provide a motor in which the number of parts is reduced thereby to improve assembly efficiency and make shaft accuracy good. Stator cores constituting a stator opposed to a rotor, an output portion side bearing that rotates and supports a side, near an output portion for operating an operated member, of a rotary shaft inserted and fixed into the rotor, and an opposite output portion side bearing holding portion (cap portion) for holding an opposite output portion side bearing that rotates and supports an opposite side to the output portion side of the rotary shaft are formed integrally by insert molding; and the output portion side bearing and the opposite output portion side bearing holding portion are made of resin.

Abstract translation: 在用于镜头驱动的小型电动机中，提供易于附接到另一个构件并且节省空间的电动机。 此外，为了提供减少部件数量的马达，从而提高组装效率并使轴精度良好。 构成与转子相对的定子的定子铁心，插入和固定在转子中的旋转轴附近的用于操作被操作构件的输出部分附近旋转并支撑侧的输出部侧轴承，以及相对的输出部侧轴承 通过嵌入成型一体地形成用于保持旋转并支撑与旋转轴的输出部侧相反的一侧的相对的输出部侧轴承的保持部（盖部） 输出部侧轴承和相对的输出部侧轴承保持部由树脂构成。