JPS605986U

JPS605986U - Folding bicycle frame fixing device

Info

Publication number: JPS605986U
Application number: JP9782183U
Authority: JP
Inventors: 律夫西村; 信秋島田
Original assignee: ブリヂストンサイクル株式会社
Priority date: 1983-06-27
Filing date: 1983-06-27
Publication date: 1985-01-17
Also published as: JPH0218797Y2

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 the drawing]

第１図は折り畳みフレームを有する自転車全体を示す側
面図、第２図はその自転車の折り畳んだ状態を示す側面
図、第３図はその自転車フレームの構成を示す分解図、
第４図はその要部の一部を断面で示す側面図、第５図は
その噛合部の斜視図、第６図は本考案装置を付した折り
畳み自転車の側面図、第７図はその要部の分解斜視図、
第８図はその要部の組み立で状態を一部断面で示す側面
図、第９図はその作動説明図、第１０図はレバーとカム
機構を一部断面で示す側面図、第１１図はその一部を断
面で示す正面図、第１２図は第１０図の下面図、第１３
図ａは固定時におけるカム機構を一部断面で示す正面図
、同図すはその側面図、第１４図ａは解放時におけるカ
ム機構を一部断面で示す正面図、同図すはその側面図で
ある。Ａ・・・前半フレーム、４・・・ヘッドパイプ、６・・
・上パイプ、７・・・下パイプ、Ｂ・・・後半フレーム
、１０・・・チェンステー、１１・・・立パイプ、１２
・・・バックホーク、１５・・・中心パイプ、１６・・
・上部中心パイプ、１７・・・下部中心パイプ、２０・
・・ハンガーパイプ、２４・・・連続山形歯、３１・・
・中蓋、３２・・・ボルト、３３・・・ナツト、３４・
・・下蓋、３５・・・コイルばね、３６・・・ボルト、
３７・・・皿ばね、３８・・・連結用ナツト、３９・・
・レバー枢支具、４０・・・ボルト、４１・・・アーム
、４２・・・偏心カム、４３・・・リング、４４・・・
レバー、４６．４７・・・ネジ。ｌ５ノ第９図／２４ｆ’１FIG. 1 is a side view showing the entire bicycle with a folding frame, FIG. 2 is a side view showing the bicycle in a folded state, and FIG. 3 is an exploded view showing the structure of the bicycle frame.
Fig. 4 is a side view showing a part of the main part in cross section, Fig. 5 is a perspective view of the engaging part, Fig. 6 is a side view of the folding bicycle equipped with the device of the present invention, and Fig. 7 is the main part. An exploded perspective view of the
Fig. 8 is a side view partially showing the main parts assembled, Fig. 9 is an explanatory diagram of its operation, Fig. 10 is a side view partially showing the lever and cam mechanism in cross section, Fig. 11 is Fig. 12 is a front view showing a part of it in cross section; Fig. 12 is a bottom view of Fig. 10;
Figure 14a is a partially sectional front view of the cam mechanism when fixed, and a side view thereof.Figure 14a is a partially sectional front view of the cam mechanism when released, and Figure 14 is a side view thereof. It is a diagram. A...First half frame, 4...Head pipe, 6...
・Upper pipe, 7... Lower pipe, B... Second half frame, 10... Chain stay, 11... Vertical pipe, 12
...Backhawk, 15...Center pipe, 16...
・Upper center pipe, 17...Lower center pipe, 20・
・Hanger pipe, 24 ・Continuous chevron teeth, 31 ・・
・Inner lid, 32... Bolt, 33... Nut, 34.
...Lower cover, 35...Coil spring, 36...Bolt,
37... Belleville spring, 38... Connection nut, 39...
・Lever pivot, 40... Bolt, 41... Arm, 42... Eccentric cam, 43... Ring, 44...
Lever, 46.47...screw. Figure 9 of l5 / 24 f'1

Claims

[Scope of utility model registration request]

A substantially vertical center pipe is provided in the middle of the bicycle frame, and an upper center pipe and a lower center pipe are provided above and below the center pipe, respectively, to form a front half frame including the center pipe, and the upper center form the second half frame including the pipe and the lower center pipe,
On the joint surface between the center pipe and the upper and lower center pipes,
In a ring-shaped ring made of continuous chevron teeth arranged radially, a spring is inserted between an inner lid formed integrally with the lower central pipe and a lower lid integrally formed with the upper central pipe, A bolt is provided that passes through the inner cover and the lower cover and projects above the upper center pipe, and a lever that can be raised and lowered is pivotally fixed to the upper end of this bolt, and a cam that moves with this lever is connected to the upper center pipe. A fixing device for a folding bicycle frame, characterized in that the engagement portion of the chevron teeth is engaged or released by undulating the lever.