JPS63169303U

JPS63169303U -

Info

Publication number: JPS63169303U
Application number: JP6326287U
Authority: JP
Priority date: 1987-04-25
Filing date: 1987-04-25
Publication date: 1988-11-04

Description

[Brief explanation of the drawing]

第１図は本考案にかかるシール構造の要部を示
す断面図、第２図は同シール構造を備えた自転車
用ハブの全体構造を示す一部切欠正面図である。１……ハブ軸、２……ハブ胴、４……玉押し、
５……軸受、８……シール材、８ａ……環状嵌合
部、８ｂ……環状接触部、９……保持面、１０…
…環状凹溝、１１……接触周面。 FIG. 1 is a cross-sectional view showing essential parts of a seal structure according to the present invention, and FIG. 2 is a partially cutaway front view showing the overall structure of a bicycle hub equipped with the same seal structure. 1...Hub axle, 2...Hub body, 4...Ball pusher,
5... Bearing, 8... Seal material, 8a... Annular fitting part, 8b... Annular contact part, 9... Holding surface, 10...
...Annular groove, 11...Contact peripheral surface.

Claims

[Scope of utility model registration request]

A bicycle hub seal structure in which a hub body 2 is rotatably supported via a bearing 6 having a cone 4 screwed onto the hub axle 1 on the outer periphery of the hub axle 1, wherein the cone 4 is screwed onto the hub axle 1. A retaining surface 9 is provided on one of the outer circumferential portion of the cone 4 and the inner circumferential portion of the hub body 2 facing the outer circumferential portion of the cone 4, and an annular groove 10 facing the retaining surface 9 and a contact periphery are provided on the other side. An annular sealing material 8 having a surface 11, an annular fitting portion 8a that loosely fits into the annular groove 10, and an annular contact portion 8b that abuts the contact peripheral surface 11 is attached to the holding surface 9. A seal structure for a bicycle hub, which is characterized by being held in place.