JPS5895393U - Bicycle gear crank device - Google Patents

Bicycle gear crank device

Info

Publication number
JPS5895393U
JPS5895393U JP19234681U JP19234681U JPS5895393U JP S5895393 U JPS5895393 U JP S5895393U JP 19234681 U JP19234681 U JP 19234681U JP 19234681 U JP19234681 U JP 19234681U JP S5895393 U JPS5895393 U JP S5895393U
Authority
JP
Japan
Prior art keywords
crank
crank device
change
teeth
gear
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
Application number
JP19234681U
Other languages
Japanese (ja)
Other versions
JPS6146077Y2 (en
Inventor
正士 長野
Original Assignee
株式会社シマノ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社シマノ filed Critical 株式会社シマノ
Priority to JP19234681U priority Critical patent/JPS5895393U/en
Publication of JPS5895393U publication Critical patent/JPS5895393U/en
Application granted granted Critical
Publication of JPS6146077Y2 publication Critical patent/JPS6146077Y2/ja
Granted legal-status Critical Current

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  • 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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案ギヤクランク装置の一実施例を示す一部
切欠正面図、第２図は第１図■−■線断面図、第３図は
部側面図、第４図は使用状態を示す説明図である。 １・・・クランク、１２．１３・・・クランクアーム、
２．３・・・チェンギャ、Ｘ・・・長軸、Ｙ・・・短軸
。Fig. 1 is a partially cutaway front view showing an embodiment of the gear crank device of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a partial side view, and Fig. 4 shows the state in use. FIG. 1...Crank, 12.13...Crank arm,
2.3...Changya, X...long axis, Y...short axis.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] クランクと歯数の異なる複数のチェンギャとから成るも
ので、前記チェンギャのうち、最少歯数るチェンギャを
、長軸と短軸とをもつほぼ楕円形とし、他のチェンギャ
を円形とすると共に、最少歯数の前記チェンギャを、前
記クランクにおけるクランクアームに対し角度変更自由
に固定するごとくしたことを特徴とする自転車用ギヤク
ランク装置。It consists of a crank and a plurality of change gears with different numbers of teeth. Among the change gears, the change gear with the least number of teeth is approximately elliptical with a major axis and a minor axis, and the other change gears are circular. A gear crank device for a bicycle, characterized in that said gear for changing the number of teeth is fixed to a crank arm of said crank so as to freely change its angle.
JP19234681U 1981-12-22 1981-12-22 Bicycle gear crank device Granted JPS5895393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19234681U JPS5895393U (en) 1981-12-22 1981-12-22 Bicycle gear crank device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19234681U JPS5895393U (en) 1981-12-22 1981-12-22 Bicycle gear crank device

Publications (2)

Publication Number Publication Date
JPS5895393U true JPS5895393U (en) 1983-06-28
JPS6146077Y2 JPS6146077Y2 (en) 1986-12-24

Family

ID=30105762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19234681U Granted JPS5895393U (en) 1981-12-22 1981-12-22 Bicycle gear crank device

Country Status (1)

Country Link
JP (1) JPS5895393U (en)

Also Published As

Publication number Publication date
JPS6146077Y2 (en) 1986-12-24

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