
基本信息:
- 专利标题: Electric power steering device
- 专利标题(中):电动助力转向装置
- 申请号:EP11170816.0 申请日:2004-04-16
- 公开(公告)号:EP2371675B1 公开(公告)日:2012-10-17
- 发明人: Shiina, Akihiko c/o JTEKT Corporation , Shinto, Hiroaki c/o JTEKT Corporation , Minami, Mitsuharu c/o JTEKT Corporation , Okawa, Noritake c/o JTEKT Corporation , Sakuda, Masayoshi c/o JTEKT Corporation
- 申请人: JTEKT CORPORATION
- 申请人地址: 5-8, Minamisemba 3-chome Chuo-ku Osaka-shi Osaka 542-8502 JP
- 专利权人: JTEKT CORPORATION
- 当前专利权人: JTEKT CORPORATION
- 当前专利权人地址: 5-8, Minamisemba 3-chome Chuo-ku Osaka-shi Osaka 542-8502 JP
- 代理机构: de Beaumont, Michel
- 优先权: JP2003114020 20030418; JP2003114018 20030418; JP2003118168 20030423; JP2003118167 20030423
- 主分类号: B62D5/04
- IPC分类号: B62D5/04 ; F16H1/16
摘要:
An electric power steering device provided with two belleville springs (12, 12) for suppressing the axial movement of a worm (3) rotated by a steering-assisting electric motor (1) and having shaft portions (3b, 3c) at its both end portions, and limiting members (13, 13) for limiting the deflection amounts of the two belleville springs (12, 12). The limiting members (13, 13) are respectively disposed at portions along the outer circumferences of the shaft portions (3b, 3c) at both end portions of the worm (3), the respective inner circumferential portions of the two belleville springs (12, 12) are formed into flat portions (12a, 12a), the outer circumferential portions thereof are respectively formed into tapered portions (12b, 12b) having a taper shape, and the limiting members (13, 13) are made contact with the flat portions (12a, 12a), thereby limiting the deflection amounts of the tapered portions (12b, 12b). Hence, the limiting members (13, 13) can be provided without increasing the size of the worm (3) serving as a small gear.
摘要(中):
一种电动动力转向装置,其具有两个贝勒维尔弹簧(12,12),用于抑制由转向辅助电动机(1)转动的蜗杆(3)的轴向运动,并且在其两端具有轴部分(3b,3c) 部分和用于限制两个碟形弹簧(12,12)的挠曲量的限制构件(13,13)。 限制部件13,13分别配置在蜗杆3的两端部的沿着轴部3b,3c的外周的部分,两个碟形弹簧12,12的各自的内周部, 12)形成为平坦部分(12a,12a),其外圆周部分分别形成为具有锥形的锥形部分(12b,12b),并且限制部件(13,13)与平坦部分 (12a,12a),从而限制锥形部分(12b,12b)的挠曲量。 因此,可以在不增加用作小齿轮的蜗杆(3)的尺寸的情况下设置限制构件(13,13)。
公开/授权文献:
- EP2371675A1 Electric power steering device 公开/授权日:2011-10-05
IPC结构图谱:
B | 作业;运输 |
--B62 | 无轨陆用车辆 |
----B62D | 机动车;挂车 |
------B62D5/00 | 助力的或动力驱动的转向机构 |
--------B62D5/04 | .电力的,例如使用伺服电动机与转向器连接或构成转向器的零件 |