公开(公告)号：US07367421B2

公开(公告)日：2008-05-06

申请号：US11082310

申请日：2005-03-17

申请人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

发明人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

IPC分类号： B62D5/06

CPC分类号： B62D3/12

摘要： A rack shaft is supported at three positions including a gear housing receiving an engagement portion between a rack gear and a pinion near one end in an axial direction with respect to a rack housing corresponding to a support body thereof, a housing near the other end, and a hollow tube housing in an approximately center portion of the rack shaft. A bush made of a resin and constituted by a cylinder body is used for supporting the rack shaft by the hollow tube housing in the approximately center portion of the rack shaft. The bush is provided with a plurality of cut grooves extending in an axial direction thereof, and is provided with a curve forming portion substantially supporting the rack shaft and extending toward an inner side in a center portion in the axial direction thereof.

摘要翻译： 齿条轴支撑在三个位置处，包括齿轮壳体，齿轮壳体相对于与其支撑体对应的齿条壳体在轴向方向上的一端处接收齿条和小齿轮之间的接合部分，在另一端附近的壳体， 以及在齿条轴的大致中心部分的中空管壳体。 由树脂构成的由筒体构成的衬套用于通过中空管壳体在齿条轴的大致中心部分中支撑齿条轴。 衬套设置有沿其轴向延伸的多个切割槽，并且设置有基本上支撑齿条轴并沿其轴向方向的中心部分的内侧延伸的弯曲形成部。

公开(公告)号：US07926378B2

公开(公告)日：2011-04-19

申请号：US11082299

申请日：2005-03-17

申请人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

发明人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

IPC分类号： F16H1/04

CPC分类号： B62D3/12 ,  F16C29/02 ,  Y10T74/18776 ,  Y10T74/19623 ,  Y10T74/1967

摘要： A rack shaft is supported in an inner peripheral portion of a tubular housing of a gear housing via a rack bush. An inner peripheral portion of the rack bush is formed as a peripheral surface approximately similar to a circle in which a peripheral surface constituted by a large circular arc and a peripheral surface constituted by a small circular arc are continuously provided. The rack shaft is not in contact with the peripheral surface constituted by the large circular arc, and the peripheral surface constituted by the small circular arc is formed as a support portion of the rack shaft. The support of the rack shaft by the peripheral surface constituted by the small circular arc is not accomplished when a load applied to the rack shaft is nothing or low, but is accomplished when the load is high. Further, an engaging convex portion acting as a positioning and rotation prevention for the bush is provided in an outer peripheral portion of the rack bush.

摘要翻译： 齿条轴通过齿条衬套支撑在齿轮壳体的管状壳体的内周部分中。 齿条衬套的内周部形成为与由大圆弧构成的周面和由小圆弧构成的周面连续地设置的圆的大致相似的圆周面。 齿条轴不与由大圆弧构成的圆周面接触，由小圆弧构成的周面形成为齿条轴的支撑部。 当施加到齿条轴的负载没有或低的时候，由小圆弧构成的圆周表面的齿条轴的支撑不能实现，而是在负载高时实现的。 此外，在齿条衬套的外周部设置有用作衬套的定位和旋转防止的接合凸部。

公开(公告)号：US20060075840A1

公开(公告)日：2006-04-13

申请号：US11082299

申请日：2005-03-17

申请人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

发明人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

IPC分类号： F16H1/04

CPC分类号： B62D3/12 ,  F16C29/02 ,  Y10T74/18776 ,  Y10T74/19623 ,  Y10T74/1967

摘要： A rack shaft is supported in an inner peripheral portion of a tubular housing of a gear housing via a rack bush. An inner peripheral portion of the rack bush is formed as a peripheral surface approximately similar to a circle in which a peripheral surface constituted by a large circular arc and a peripheral surface constituted by a small circular arc are continuously provided. The rack shaft is not in contact with the peripheral surface constituted by the large circular arc, and the peripheral surface constituted by the small circular arc is formed as a support portion of the rack shaft. The support of the rack shaft by the peripheral surface constituted by the small circular arc is not accomplished when a load applied to the rack shaft is nothing or low, but is accomplished when the load is high. Further, an engaging convex portion acting as a positioning and rotation prevention for the bush is provided in an outer peripheral portion of the rack bush.

摘要翻译： 齿条轴通过齿条衬套支撑在齿轮壳体的管状壳体的内周部分中。 齿条衬套的内周部形成为与由大圆弧构成的周面和由小圆弧构成的周面连续地设置的圆的大致相似的圆周面。 齿条轴不与由大圆弧构成的圆周面接触，由小圆弧构成的周面形成为齿条轴的支撑部。 当施加到齿条轴的负载没有或低的时候，由小圆弧构成的圆周表面的齿条轴的支撑不能实现，而是在负载高时实现的。 此外，在齿条衬套的外周部设置有用作衬套的定位和旋转防止的接合凸部。

公开(公告)号：US20060076180A1

公开(公告)日：2006-04-13

申请号：US11082310

申请日：2005-03-17

申请人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

发明人： Tatsuya Saito ,  Yukio Tajima ,  Yoshio Onoguchi

IPC分类号： B62D5/06

CPC分类号： B62D3/12

摘要： A rack shaft is supported at three positions including a gear housing receiving an engagement portion between a rack gear and a pinion near one end in an axial direction with respect to a rack housing corresponding to a support body thereof, a housing near the other end, and a hollow tube housing in an approximately center portion of the rack shaft. A bush made of a resin and constituted by a cylinder body is used for supporting the rack shaft by the hollow tube housing in the approximately center portion of the rack shaft. The bush is provided with a plurality of cut grooves extending in an axial direction thereof, and is provided with a curve forming portion substantially supporting the rack shaft and extending toward an inner side in a center portion in the axial direction thereof.

摘要翻译： 齿条轴支撑在三个位置处，包括齿轮壳体，齿轮壳体相对于与其支撑体对应的齿条壳体在轴向方向上的一端处接收齿条和小齿轮之间的接合部分，在另一端附近的壳体， 以及在齿条轴的大致中心部分的中空管壳体。 由树脂构成的由筒体构成的衬套用于通过中空管壳体在齿条轴的大致中心部分中支撑齿条轴。 衬套设置有沿其轴向延伸的多个切割槽，并且设置有基本上支撑齿条轴并沿其轴向方向的中心部分的内侧延伸的弯曲形成部。