JPS605989U - bicycle crank - Google Patents
bicycle crankInfo
- Publication number
- JPS605989U JPS605989U JP9792883U JP9792883U JPS605989U JP S605989 U JPS605989 U JP S605989U JP 9792883 U JP9792883 U JP 9792883U JP 9792883 U JP9792883 U JP 9792883U JP S605989 U JPS605989 U JP S605989U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- bicycle crank
- crank
- fixed
- crankshaft part
- 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
Landscapes
- Transmission Devices (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来の一体型の自転車用クランクを示す一部縦
断正面図、第2図は先考案に係る自転車用クランクの一
部縦断正面図、第3〜4図は先考案の側倒を示しており
、第3図は中央部の、第4図は端部のそれぞれ一部縦断
面図、第5〜7図は本考案の実施例を示しており、第5
図は円筒の部分断面図、第6図は支持板の斜視図、第7
図は組立てた状態を両端を省略して示す一部縦断正面図
である。
1:ボトムブラケット、2:ベアリング、3:クランク
軸部、4a、 4b:クランク腕部、5:大ギヤ、6
:中心孔、7:突出杆、8:孔、9:雄ねじ部、10:
玉押、11. 11a、 11b:円筒、12:外向
フランジ、13:ねじ孔、14ニブラケツト、15:円
孔、16:円筒面部、17:支持板、18:短円筒部、
19:円孔。 ゛
、−17−
+I n
?、7−−’1
第5図 、 第6し
r
第2図 D
4ド
119
4夜
・ 71印
17
1+−Fig. 1 is a partially longitudinal front view showing a conventional integrated bicycle crank, Fig. 2 is a partially longitudinal front view of a bicycle crank according to an earlier invention, and Figs. 3 and 4 are side views of an earlier invention. FIG. 3 is a partial vertical cross-sectional view of the central portion, FIG. 4 is a partial vertical cross-sectional view of the end portion, and FIGS. 5 to 7 show embodiments of the present invention.
The figure is a partial sectional view of the cylinder, Figure 6 is a perspective view of the support plate, and Figure 7 is a partial cross-sectional view of the cylinder.
The figure is a partially longitudinal front view showing the assembled state with both ends omitted. 1: Bottom bracket, 2: Bearing, 3: Crankshaft, 4a, 4b: Crank arm, 5: Large gear, 6
: Center hole, 7: Protruding rod, 8: Hole, 9: Male thread, 10:
Ball push, 11. 11a, 11b: cylinder, 12: outward flange, 13: screw hole, 14 nib bracket, 15: circular hole, 16: cylindrical surface part, 17: support plate, 18: short cylindrical part,
19: Circular hole.゛, -17- +I n ? , 7--'1 Figure 5, 6th r Figure 2 D 4 do 119 4 nights 71 mark 17 1+-
Claims (1)
とこのクランク軸部の両端から互いに反対方向に折曲っ
たクランク腕部とを一体に形成し、上記クランク軸部に
外周面に雄ねじを有する円筒を外嵌し溶接固定して、こ
のクランク軸部の両端に玉押を装着するための雄ねじ部
を設けた自転車用クランクに於いて、上記円筒の一端に
支持板を固着し、この支持板の内側面には、円孔の周囲
を囲み自転車用クランクに装着する大ギヤの中心孔に内
嵌できる端口筒部と、この大ギヤの中心から外れた位置
に穿設した孔に内嵌できる突出杆とを形成したことを特
徴とする自転車用クランク。A metal round material is bent into a crank shape, an intermediate crankshaft part and crank arm parts bent in opposite directions from both ends of this crankshaft part are integrally formed, and a male thread is provided on the outer peripheral surface of the crankshaft part. In a bicycle crank in which a cylinder having a cylinder is fitted onto the outside and fixed by welding, and a male screw part is provided at both ends of the crankshaft part for attaching a cone, a support plate is fixed to one end of the cylinder, and this support plate is fixed to one end of the cylinder. The inner surface of the plate has an end tube that surrounds the circular hole and can be fitted into the center hole of a large gear attached to a bicycle crank, and an end tube that can be fitted into a hole drilled at a position away from the center of the large gear. A bicycle crank characterized by forming a protruding rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9792883U JPS605989U (en) | 1983-06-27 | 1983-06-27 | bicycle crank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9792883U JPS605989U (en) | 1983-06-27 | 1983-06-27 | bicycle crank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS605989U true JPS605989U (en) | 1985-01-17 |
JPS632390Y2 JPS632390Y2 (en) | 1988-01-21 |
Family
ID=30232729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9792883U Granted JPS605989U (en) | 1983-06-27 | 1983-06-27 | bicycle crank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS605989U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021011253A (en) * | 2019-07-09 | 2021-02-04 | アイデス株式会社 | Crank attachment/detachment structure for bicycle and bicycle including the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921233A (en) * | 1972-06-16 | 1974-02-25 |
-
1983
- 1983-06-27 JP JP9792883U patent/JPS605989U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921233A (en) * | 1972-06-16 | 1974-02-25 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021011253A (en) * | 2019-07-09 | 2021-02-04 | アイデス株式会社 | Crank attachment/detachment structure for bicycle and bicycle including the same |
Also Published As
Publication number | Publication date |
---|---|
JPS632390Y2 (en) | 1988-01-21 |
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