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1. 发明公开

EP1162133A2 A supporting structure for a fork stem in a bicycle 有权
标题翻译： Tragstruktur eine Gabelrohres在einem Fahrrad
公开(公告)号：EP1162133A2
公开(公告)日：2001-12-12
申请号：EP00127810.0
申请日：2000-12-19
申请人： Marui Co., Ltd.
发明人： Marui, Kohei, Marui Co.,Ltd.
IPC分类号： B62K21/06
CPC分类号： B62K21/06 , Y10T29/49696
摘要： A structure is disclosed which enables easy manufacture of a supporting portion for a bicycle fork stem. This structure comprises: (i) a head pipe which is formed from a tubular pipe having a constant diameter and which has ball bearing accommodating portions each located at a position interior to an opening end of the head pipe relative to an axial direction, and (ii) ball bearings each of which has steel balls and first and second rings for holding the steel balls therebetween and supports the fork stem passing through the second ring. The ball bearing accommodating portions are each composed of (i) a support ring supported in a push-in inhibited fashion by an annular face that is formed on the inner circumferential surface of the head pipe so as to be perpendicular to an axial direction and (ii) one of the ball bearings with the first ring being supported in a push-in inhibited fashion by the support ring.
摘要翻译：公开了一种能够容易地制造用于自行车叉杆的支撑部分的结构。这种结构包括：（i）头管，其由具有恒定直径的管状管形成，并且具有球轴承容纳部分，每个球轴承容纳部分位于头管的相对于轴向方向的开口端的内部，以及（ ii）各自具有钢球的滚珠轴承和用于将钢球保持在其间的第一和第二环，并支撑通过第二环的叉杆。滚珠轴承容纳部分分别由以下部件组成：（i）通过形成在头管的内周面上以与轴向垂直的环形面以推入式的方式被支撑的支撑环， ii）具有第一环的球轴承中的一个由支撑环以推入式的方式被支撑。

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