JPS588689U

JPS588689U - bicycle crank

Info

Publication number: JPS588689U
Application number: JP10300981U
Authority: JP
Inventors: 正士長野
Original assignee: 株式会社シマノ
Priority date: 1981-07-10
Filing date: 1981-07-10
Publication date: 1983-01-20

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

[Brief explanation of drawings]

第１図は本考案クランクに市販のペダルを取付１　　け
た状態の縦断面図、第２図は本考案クランクに３　　開
角ペダルを取付けた状態の縦断面図、第３図反動　　び
第４図は別の実施例を示す要部の縦断面図であ′　　る
。１・・・・・・クランクアーム、１２・・・・・・ペダ
ル取付孔、η　　１２ａ・・・す・ネジ＆　　１２ｂ、
　　１　：）ｃ・・・・・・ポールレーン　　ス、２・
・・・・・ペダル、２１・・・曲ペダル軸、２２・・曲
ペダルボディ、２１ａ・・・・・・ねじ。Figure 1 is a vertical cross-sectional view of the crank of the present invention with a commercially available pedal attached, Figure 2 is a vertical cross-section of the crank of the present invention with a three-way opening pedal attached, Figure 3 is a recoil, and Figure 4 FIG. 2 is a vertical cross-sectional view of main parts showing another embodiment. 1... Crank arm, 12... Pedal mounting hole, η 12a... Screw & 12b,
1:) c... Paul lane, 2.
...Pedal, 21...Song pedal shaft, 22...Song pedal body, 21a...Screw.

Claims

[Scope of utility model registration request]

A crank for a one-wheel drive vehicle, in which a pedal mounting hole is provided at the tip of a crank arm, and a pedal is mounted in the pedal mounting hole, the V peripheral surface of the pedal mounting hole having a screw on the outer periphery of one end in the axial direction. A threaded portion of the pedal consisting of a pedal shaft and a pedal mounting hole rotatably supported on the pedal shaft is provided, and the threaded portion is screwed onto the pedal shaft, and the threaded portion is located on the axial direction ν side and at a large diameter position. A bicycle crank characterized by having a pair of open ball races.