JPH0272194U

JPH0272194U -

Info

Publication number: JPH0272194U
Application number: JP15262688U
Authority: JP
Priority date: 1988-11-24
Filing date: 1988-11-24
Publication date: 1990-06-01

Description

[Brief explanation of drawings]

第１図は本願考案を適用する自転車のフレーム
前部のヘツドセツトの外観側面図、第２図は第１
図における―線に沿う拡大断面図、第３図は
第２図における上部ベアリング部の要部拡大図、
第４図は転動体リテナーを有する場合の実施例を
示す図である。１……ヘツドセツト、２……ヘツドパイプ、８
……前ホークステム、１１……ベアリング部、１
２，１５……玉押し、１３，１７……ワン、１４
……転動体、１９……潤滑剤注入孔、２２……環
状隙間、２３……シール部、２４……シール体。 Figure 1 is an external side view of a headset at the front of a bicycle frame to which the present invention is applied;
Figure 3 is an enlarged cross-sectional view along line - in the figure, Figure 3 is an enlarged view of the main part of the upper bearing part in Figure 2,
FIG. 4 is a diagram showing an embodiment in which a rolling element retainer is provided. 1...Headset, 2...Headpipe, 8
...Front Hawk Stem, 11...Bearing part, 1
2,15... Ball push, 13,17... One, 14
... Rolling element, 19 ... Lubricant injection hole, 22 ... Annular gap, 23 ... Seal portion, 24 ... Seal body.

Claims

[Scope of Claim for Utility Model Registration] A head pipe with a front hook stem inserted through the head pipe fixed to one of the head pipe and the front hook stem, a cone fixed to the other, and the above-mentioned one and the cone cone. In a bicycle head set which is rotatably supported via a pair of upper and lower bearing parts consisting of a plurality of rolling elements rotatably interposed between the one and While providing a lubricant injection hole communicating with the inner part of the rolling element in the annular gap formed between the
A lubrication structure for a bicycle headset, characterized in that an annular seal body having a seal portion extending inward in the axial direction of the head pipe along the outer peripheral surface of the front Hawk stem is provided in the annular gap.