JPH03100501U

JPH03100501U -

Info

Publication number: JPH03100501U
Application number: JP954090U
Authority: JP
Priority date: 1990-02-01
Filing date: 1990-02-01
Publication date: 1991-10-21

Description

[Brief explanation of drawings]

第１図は請求項１に記載した考案の第一の実施
例を示す縦断面図、第２図はその要部拡大図、第
３図は請求項１に記載した考案の第二の実施例を
示す縦断面図、第４図は請求項２に記載した考案
の実施例を示す縦断面図である。１……ハブ体、２……スプロケツト支持体、４
……中子、５……ハブ軸、６……ベアリング部、
７……ベアリング部、２０……スプライン軸部、
２１……スプライン穴部、２２……中央貫通孔、
２３……中空ボルト、２４……ねじ軸部、２５…
…雌ねじ部、２６……頭部、２８……段部、２９
……左端面、４２……ナツト。 Fig. 1 is a vertical cross-sectional view showing a first embodiment of the invention as set forth in claim 1, Fig. 2 is an enlarged view of the main part thereof, and Fig. 3 is a second embodiment of the invention as set forth in claim 1. FIG. 4 is a longitudinal sectional view showing an embodiment of the invention according to claim 2. 1... Hub body, 2... Sprocket support, 4
... core, 5 ... hub axle, 6 ... bearing section,
7...Bearing part, 20...Spline shaft part,
21... Spline hole portion, 22... Center through hole,
23...Hollow bolt, 24...Screw shaft, 25...
... Female thread part, 26 ... Head, 28 ... Step part, 29
...Left side, 42...Natsuto.

Claims

[Claims for Utility Model Registration] (1) A core formed by supporting a sprocket support body so as to be rotatable in one direction is fixed to the right end of the hub body, while between the left end of the hub body and the hub axle, and a bicycle unit hub comprising a bearing section between the core and the hub axle, wherein a spline shaft section is provided on the outer periphery of the right end of the hub body;
Spline holes are provided on the inner periphery of the inner end of the core, and these are spline-fitted to each other, while a hollow bolt is inserted from the left into the center through hole of the hub body, and its head is inserted into the center through hole. 1. A unit hub for a bicycle, characterized in that the threaded shaft portion at the tip of the hollow bolt is engaged with a female threaded portion formed on the inner periphery of the core. (2) A core formed by supporting a sprocket support body so as to be rotatable in one direction is fixed to the right end of the hub body, while a core formed by supporting the sprocket support body so as to be rotatable in one direction is fixed to the right end of the hub body. A bicycle unit hub is provided with a bearing section between the hub body, and a spline shaft section is provided on the outer periphery of the right end of the hub body.
Spline holes are provided on the inner periphery of the inner end of the core, and these are spline-fitted to each other, while a hollow bolt is inserted from the left into the center through hole of the hub body, and its head is inserted into the center through hole. A unit hub for a bicycle, characterized in that the threaded end of the hollow bolt protrudes from the right end of the core, and a nut is screwed into the threaded end of the hollow bolt.