JPS58194989U - bicycle crank arm - Google Patents

bicycle crank arm

Info

Publication number
JPS58194989U
JPS58194989U JP8633382U JP8633382U JPS58194989U JP S58194989 U JPS58194989 U JP S58194989U JP 8633382 U JP8633382 U JP 8633382U JP 8633382 U JP8633382 U JP 8633382U JP S58194989 U JPS58194989 U JP S58194989U
Authority
JP
Japan
Prior art keywords
crank arm
bicycle crank
square hole
crankshaft
fits
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
JP8633382U
Other languages
Japanese (ja)
Other versions
JPS6217347Y2 (en
Inventor
永井　清一
Original Assignee
株式会社マルイ
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 株式会社マルイ filed Critical 株式会社マルイ
Priority to JP8633382U priority Critical patent/JPS58194989U/en
Publication of JPS58194989U publication Critical patent/JPS58194989U/en
Application granted granted Critical
Publication of JPS6217347Y2 publication Critical patent/JPS6217347Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • 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

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

第１図は本考案クランクアームの一実施例を示、　す斜
視図、第２図は要部の断面図、第３図は使用状態を示す
一部省略断面図である。 １・・・角孔、２・・・ボス部、４・・・肉厚部、５・
・・補強リング、１０・・・クランク軸。FIG. 1 is a perspective view showing one embodiment of the crank arm of the present invention, FIG. 2 is a sectional view of the main part, and FIG. 3 is a partially omitted sectional view showing the crank arm in use. 1... Square hole, 2... Boss part, 4... Thick part, 5...
... Reinforcement ring, 10... Crankshaft.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] クランク軸に嵌合するテーパー状の角孔をもつボス部を
備えた自転車用クランクアームであって、前記ボス部に
おける前記角孔のクランク軸への嵌合先端側で、かつ、
前記角孔の径方向外方に所定の肉厚部を介して補強リン
グを埋込むごとく固定したことを特徴とする自転車用ク
ランクアーム。A bicycle crank arm comprising a boss portion having a tapered square hole that fits into a crankshaft, the square hole of the boss portion being on the end side where the square hole fits into the crankshaft, and
A bicycle crank arm characterized in that a reinforcing ring is embedded and fixed to the outside of the square hole in the radial direction through a predetermined thick part.
JP8633382U 1982-06-09 1982-06-09 bicycle crank arm Granted JPS58194989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8633382U JPS58194989U (en) 1982-06-09 1982-06-09 bicycle crank arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8633382U JPS58194989U (en) 1982-06-09 1982-06-09 bicycle crank arm

Publications (2)

Publication Number Publication Date
JPS58194989U true JPS58194989U (en) 1983-12-24
JPS6217347Y2 JPS6217347Y2 (en) 1987-05-02

Family

ID=30216269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8633382U Granted JPS58194989U (en) 1982-06-09 1982-06-09 bicycle crank arm

Country Status (1)

Country Link
JP (1) JPS58194989U (en)

Also Published As

Publication number Publication date
JPS6217347Y2 (en) 1987-05-02

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