JPH01180393U - - Google Patents
Info
- Publication number
- JPH01180393U JPH01180393U JP7802188U JP7802188U JPH01180393U JP H01180393 U JPH01180393 U JP H01180393U JP 7802188 U JP7802188 U JP 7802188U JP 7802188 U JP7802188 U JP 7802188U JP H01180393 U JPH01180393 U JP H01180393U
- Authority
- JP
- Japan
- Prior art keywords
- bracket
- crankshaft
- threaded
- axial direction
- bicycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims description 2
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Motorcycle And Bicycle Frame (AREA)
Description
第１図は本考案取付構造の一実施例を示す断面
図、第２図は部分拡大断面図、第３図はねじ環の
みの一部切欠正面図、第４図は同側面図、第５図
は別の実施例を示す一部省略断面図である。
１……ボトムブラケツト、１１……ねじ部、２
……クランク軸、２１……支持部、２２，２２…
…アーム保持部、３……転動体、４……軸受筒、
５……ねじ環、Ｃ……軸ユニツト。
Fig. 1 is a sectional view showing one embodiment of the mounting structure of the present invention, Fig. 2 is a partially enlarged sectional view, Fig. 3 is a partially cutaway front view of only the threaded ring, Fig. 4 is a side view of the same, and Fig. 5 is a partially cutaway front view of only the threaded ring. The figure is a partially omitted sectional view showing another embodiment. 1...Bottom bracket, 11...Threaded part, 2
...Crankshaft, 21...Support part, 22, 22...
...Arm holding part, 3...Rolling element, 4...Bearing sleeve,
5...Screw ring, C...Shaft unit.
Claims (1)
持する支持部２１と、この支持部２１の両端から
前記ブラケツト１の両端面に対し外方に突出し、
クランクアームを保持する１対のアーム保持部２
２，２２とから成るクランク軸２の取付構造であ
つて、前記ブラケツト１の端部内周にねじ部１１
を設ける一方、前記クランク軸２の支持部２１外
周に転動体３を介して軸受筒４を回転自由で、か
つ軸方向移動不能に支持した軸ユニツトＣを形成
し、この軸ユニツトＣの前記軸受筒４外周に、外
面に前記ブラケツト１の一端面と当接する当たり
部５２をもつたねじ環５を軸方向移動不能に保持
し、このねじ環５の前記ねじ部１１への螺合によ
り前記軸ユニツトＣを前記ブラケツト１に取付け
る如く成したことを特徴とする自転車用クランク
軸の取付構造。 A support part 21 rotatably supported in the bottom bracket 1 of the bicycle, and protruding outward from both ends of the support part 21 with respect to both end surfaces of the bracket 1,
A pair of arm holding parts 2 that hold the crank arms
2 and 22, the crankshaft 2 has a threaded portion 11 on the inner periphery of the end of the bracket 1.
On the other hand, a shaft unit C is formed on the outer periphery of the support portion 21 of the crankshaft 2, in which the bearing sleeve 4 is supported rotatably and immovably in the axial direction via the rolling elements 3, and the bearing of this shaft unit C is A threaded ring 5 having a contact portion 52 that contacts one end surface of the bracket 1 on the outer surface thereof is held immovably in the axial direction on the outer periphery of the cylinder 4, and by screwing the threaded ring 5 into the threaded portion 11, the shaft A mounting structure for a bicycle crankshaft, characterized in that a unit C is mounted on the bracket 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7802188U JPH071357Y2 (en) | 1988-06-13 | 1988-06-13 | Bicycle crankshaft mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7802188U JPH071357Y2 (en) | 1988-06-13 | 1988-06-13 | Bicycle crankshaft mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01180393U true JPH01180393U (en) | 1989-12-26 |
| JPH071357Y2 JPH071357Y2 (en) | 1995-01-18 |
Family
ID=31302971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7802188U Expired - Lifetime JPH071357Y2 (en) | 1988-06-13 | 1988-06-13 | Bicycle crankshaft mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071357Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0469329A1 (en) * | 1990-08-01 | 1992-02-05 | Robert Schmitt | Crank bearing unit for bicycles |
| EP0485954A1 (en) * | 1990-11-14 | 1992-05-20 | Shimano Inc. | Crank arm mounting apparatus for a bicycle |
| EP0512149A1 (en) * | 1991-05-02 | 1992-11-11 | Shimano Inc. | Crank axle unit for a bicycle |
-
1988
- 1988-06-13 JP JP7802188U patent/JPH071357Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0469329A1 (en) * | 1990-08-01 | 1992-02-05 | Robert Schmitt | Crank bearing unit for bicycles |
| EP0485954A1 (en) * | 1990-11-14 | 1992-05-20 | Shimano Inc. | Crank arm mounting apparatus for a bicycle |
| EP0512149A1 (en) * | 1991-05-02 | 1992-11-11 | Shimano Inc. | Crank axle unit for a bicycle |
| US5243879A (en) * | 1991-05-02 | 1993-09-14 | Shimano Inc. | Crank axle unit for a bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH071357Y2 (en) | 1995-01-18 |