JPH0173507U

JPH0173507U -

Info

Publication number: JPH0173507U
Application number: JP1987169751U
Authority: JP
Priority date: 1987-11-06
Filing date: 1987-11-06
Publication date: 1989-05-18

Description

[Brief explanation of the drawing]

第１図は、本考案に係わるベルト締付具の平面
図、第２図は本体Ａの縦断斜視図、第３図は、巻
付部材Ｄの側面図、第４図は、開放レバーＢが引
起し位置に位置している状態の中央縦断面図、第
５図は、開放レバーＢが締付位置に位置している
状態の中央縦断面図、第６図は、締付けの原理を
説明するための説明図である。〔主要部分の符号の説明〕、Ａ：本体、Ｂ：開
放レバー、Ｃ：思案位置における巻付部材の巻付
中心と開放レバーの巻付ピンの中心との間の長さ
、Ｃ′：締付位置における巻付部材の巻付中心と
開放レバーの巻付ピンの中心との間の長さ、Ｒ：
巻付部材に対するベルトの巻付半径、θ：開放レ
バーが思案位置から締付位置に移行することによ
り増大する巻付部材に対するベルトの巻付角度、
Ｄ：巻付部材、Ｖ_１：引張側ベルト、Ｖ_２：固定
側ベルト、Ｔ：ベルトの張力、４：本体の底板、
１８：支点ピン、２０：巻付ピン。 Fig. 1 is a plan view of the belt tightening device according to the present invention, Fig. 2 is a vertical perspective view of the main body A, Fig. 3 is a side view of the wrapping member D, and Fig. 4 shows that the release lever B is FIG. 5 is a central longitudinal cross-sectional view of the release lever B in the raised position, and FIG. 6 is a central vertical cross-sectional view of the lever B in the tightening position. FIG. [Explanation of symbols of main parts], A: Main body, B: Release lever, C: Length between the wrapping center of the wrapping member in the thoughtful position and the center of the wrapping pin of the release lever, C': Tightening Length between the wrapping center of the wrapping member and the center of the opening lever wrapping pin in the attached position, R:
Wrapping radius of the belt around the wrapping member, θ: Wrapping angle of the belt around the wrapping member, which increases as the release lever moves from the thoughtful position to the tightening position,
D: Wrapping member, V ₁ : Tension side belt, V ₂ : Fixed side belt, T: Belt tension, 4: Bottom plate of main body,
18: Fulcrum pin, 20: Wrapping pin.

Claims

[Claims for Utility Model Registration] A release lever is rotatably attached to the main body via a fulcrum pin, a wrapping pin is provided on the release lever, and a wrapping member is provided on the main body, so that the release lever can be rotated freely. The belt wrapped around the winding pin is doubled and wrapped around the winding member of the main body, and the pushed-down release lever is locked by the difference in the amount of belt tightening between the release lever's deliberate position and the tightened position. A belt tightening tool, characterized in that the winding member provided on the main body is constituted by an upright plate made by cutting and raising the bottom plate of the main body.