JPS6032190U - bicycle gear crank - Google Patents
bicycle gear crankInfo
- Publication number
- JPS6032190U JPS6032190U JP12454083U JP12454083U JPS6032190U JP S6032190 U JPS6032190 U JP S6032190U JP 12454083 U JP12454083 U JP 12454083U JP 12454083 U JP12454083 U JP 12454083U JP S6032190 U JPS6032190 U JP S6032190U
- Authority
- JP
- Japan
- Prior art keywords
- crank
- gear
- crankshaft
- mounting body
- 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.)
- Pending
Links
Landscapes
- Transmission Devices (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
図面は本考案の実施例を示すもので、第１図は自転車の
ボトムブラケットに取付けた状態を示す断面正面図、第
２図は取付体の一部断面説明図、第３図は取付体におけ
るロックナツト締付前の組立途中の断面説明図である。
１・・・クランク、１１・・・第１グランクアーム、１
２・・・第２クランクアーム、１３・・・クランク軸、
２・・・チェンギャ、３，４・・・軸受、５・・・ボト
ムブラケット、６・・・取付体、６１・・・中心孔、７
・・・取付部。The drawings show an embodiment of the present invention; Fig. 1 is a cross-sectional front view showing the state in which it is attached to the bottom bracket of a bicycle, Fig. 2 is a partially sectional explanatory view of the mounting body, and Fig. 3 is a diagram showing the lock nut on the mounting body. FIG. 3 is an explanatory cross-sectional view during assembly before tightening. 1... Crank, 11... First crank arm, 1
2...Second crank arm, 13...Crankshaft,
2... Change gear, 3, 4... Bearing, 5... Bottom bracket, 6... Mounting body, 61... Center hole, 7
...Mounting part.
Claims (1)
体に形成したクランクと、少なくとも１枚のチェンギャ
とから成り、前記クランク軸を自転車のポ斗ムブラケッ
トに１対の軸受を介して回転可能に支持するごとくした
ギヤクランクにおいて、中心部に前記クランク軸に挿嵌
する中心孔をもち、外周部に前記チェンギャの取付部を
設けたギヤ取付体を形成して、該取付体を、前記クラン
ク軸の第１クランクアーム側に固定すると共に、該取付
体に、前記チェンギャを着脱自由に固定したことを特徴
とする自転車用ギヤクランク。It consists of a crank in which a pair of first and second crank arms and a crankshaft are integrally formed, and at least one change gear, and the crankshaft is rotated by a pair of bearings on a bicycle pot bracket. In the gear crank, a gear mounting body is formed, the gear mounting body having a center hole in the center into which the crankshaft is inserted and a mounting portion for the change gear on the outer periphery. A bicycle gear crank, characterized in that it is fixed to a first crank arm side of a crankshaft, and the change gear is detachably fixed to the mounting body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12454083U JPS6032190U (en) | 1983-08-10 | 1983-08-10 | bicycle gear crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12454083U JPS6032190U (en) | 1983-08-10 | 1983-08-10 | bicycle gear crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032190U true JPS6032190U (en) | 1985-03-05 |
Family
ID=30283864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12454083U Pending JPS6032190U (en) | 1983-08-10 | 1983-08-10 | bicycle gear crank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032190U (en) |
-
1983
- 1983-08-10 JP JP12454083U patent/JPS6032190U/en active Pending
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