JP2003278714A

JP2003278714A - Belt type rodless cylinder

Info

Publication number: JP2003278714A
Application number: JP2002085324A
Authority: JP
Inventors: Shintaro Sakai; 進太郎坂井
Original assignee: SAKAI GIKEN KK
Current assignee: SAKAI GIKEN KK
Priority date: 2002-03-26
Filing date: 2002-03-26
Publication date: 2003-10-02

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rodless cylinder that is manufactured at a low cost, preventing a shift between a magnet and a moving body such as a magnet type rodless cylinder, and causes no air leak from an opening such as a mechanical joint type rodless cylinder. <P>SOLUTION: A piston 3 without a piston rod is arranged inside the cylinder 1, and a thin belt 4 is fixed on both the end faces. The thin belt 4 is taken out of the cylinder 2 from the cylinder head 1 via a packing 7 and reversed by a roller 5, and both the ends are tied to a slider 6 for transferring a move of the piston 3 to the slider 6 to accordingly constitute this rodless cylinder. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】【０００１】【発明が属する技術分野】本発明は空気や油等の作動流
体の圧力により駆動されるロッドレスシリンダーに関す
るものである。【０００２】【従来の技術】従来のロッドレスシリンダーは永久磁石
を使用した磁石式のものと、シリンダーの長手方向全長
に開口部を設けこの開口部をシールベルトでふさぎ、ピ
ストンの一部を開口部から飛出させ、移動体と連結した
メカジョイント方式と呼ぶものがある。【０００３】【発明が解決しようとする課題】磁石式ロッドレスシリ
ンダーに使用する磁石は高価であり、高負荷で使用する
と磁石と移動体とがずれをおこす欠点がある。又メカジ
ョイント方式のものは長手方向全長に設けた開口部から
空気漏れをおこすことがある。【０００４】【課題を解決するための手段】本発明は課題を解決する
ために通常のシリンダーが使用する棒状のシリンダーロ
ッドの変わりに柔軟性及び引っ張り強度のある薄ベルト
（４）でピストン（３）とシリンダー（２）の外部のス
ライダー（６）とを結ぶことにより、ピストン（３）の
移動をシリンダーの外のスライダ−（６）に伝えた。【０００５】【発明の実施の形態】発明の実施の形態を実施例にもと
ずき図面を参照して説明する。図１は本発明の斜示図で
ある。【０００６】図２は、長手方向の断面図である。【０００７】図２は、側面図である。【０００８】シリンダーヘッド（１）はシリンダー
（２）を固定するためにシリンダー（２）の両端に取り
付けられる。【０００９】通常、ピストン（３）は棒状のシリンダー
ロッドが取付られるが、本発明は柔軟性及び引っ張り強
度のある薄ベルト（４）がピストン（３）の両端面に取
り付られる。【００１０】薄ベルト（４）はシリンダーヘッド（１）
を貫通する。その接触面にはパッキン（７）を取付る。【００１１】ローラー（５）はシリンダーヘッド（１）
に取り付られ、薄ベルト（４）を折り曲げ反転する。【００１２】反転した薄ベルト（４）はスライダー
（６）の端面に取り付られる。その反対面には今までの
説明の対称に部品が取り付けられ、薄ベルト（４）がス
ライダー（６）とピストン（３）とを間に入れ環状にな
る。【００１３】ローラー取付具（８）はローラー（５）を
シリンダーヘッド（１）に取り付るためのものである。【００１４】配管穴（９）は作動流体を導入するための
穴でシリンダーヘッド（１）に明けられる。【００１５】スライダー（６）は移動物体に接合され、
ピストン（３）の動きを移動体に伝える。【発明の効果】このようにしてピストン（３）の動きを
永久磁石を使わずに移動物体に伝えることができ、移動
体とのずれをおこす事が無い。又シリンダーの長手方向
全長に開口部を設ける事が無いため開口部から空気漏れ
をおこすことがないロッドレスシリンダーを得た。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rodless cylinder driven by the pressure of a working fluid such as air or oil. A conventional rodless cylinder is of a magnet type using a permanent magnet, and an opening is provided in the entire length of the cylinder in the longitudinal direction, and the opening is covered with a seal belt, and a part of the piston is opened. There is a mechanism called a mechanical joint system in which the robot is protruded from a part and connected to a moving body. [0003] The magnet used in the magnet type rodless cylinder is expensive, and there is a drawback that the magnet and the moving body are displaced when used under a high load. In the case of the mechanical joint system, air leakage may occur from an opening provided over the entire length in the longitudinal direction. SUMMARY OF THE INVENTION In order to solve the problem, the present invention solves the problem by using a thin belt (4) having flexibility and tensile strength instead of a rod-shaped cylinder rod used in a normal cylinder. ) And the slider (6) outside the cylinder (2), the movement of the piston (3) was transmitted to the slider (6) outside the cylinder. Embodiments of the present invention will be described with reference to the accompanying drawings based on embodiments. FIG. 1 is a perspective view of the present invention. FIG. 2 is a longitudinal sectional view. FIG. 2 is a side view. [0008] The cylinder head (1) is attached to both ends of the cylinder (2) to fix the cylinder (2). Usually, a rod-shaped cylinder rod is attached to the piston (3). In the present invention, a thin belt (4) having flexibility and tensile strength is attached to both end faces of the piston (3). The thin belt (4) is a cylinder head (1)
Through. A packing (7) is attached to the contact surface. The roller (5) is a cylinder head (1)
The thin belt (4) is folded and inverted. The inverted thin belt (4) is attached to the end face of the slider (6). On the opposite surface, parts are mounted symmetrically as described above, and the thin belt (4) is annular with the slider (6) and the piston (3) interposed therebetween. The roller mounting (8) is for mounting the roller (5) to the cylinder head (1). The piping hole (9) is a hole for introducing a working fluid and is formed in the cylinder head (1). The slider (6) is joined to the moving object,
The movement of the piston (3) is transmitted to the moving body. As described above, the movement of the piston (3) can be transmitted to the moving object without using the permanent magnet, and the displacement of the moving object does not occur. Further, a rodless cylinder was obtained in which an opening was not provided in the entire length in the longitudinal direction of the cylinder, so that air leakage did not occur from the opening.

【図面の簡単な説明】【図１】本発明の斜示図【図２】長手方向の断面図【図３】側面図【符号の説明】１シリンダーヘッド２シリンダー３ピストン４薄ベルト５ａ，５ｂ，ローラー６スライダー７ａ，７ｂ，パッキン８ａ，８ｂ，ローラー取付具９ａ，９ｂ，配管穴[Brief description of the drawings] FIG. 1 is a perspective view of the present invention. FIG. 2 is a longitudinal sectional view FIG. 3 is a side view [Explanation of symbols] 1 cylinder head 2 cylinders 3 piston 4 Thin belt 5a, 5b, roller 6 Slider 7a, 7b, packing 8a, 8b, roller attachment 9a, 9b, piping hole

Claims

Claims 1. A piston (3) without a piston rod is arranged inside a cylinder (1), and a thin belt (4) is attached to both sides of the piston (3). The thin belt (4) is pulled out of the cylinder head (1) through the packing (7) to the outside of the cylinder (2), and is inverted by the roller (5).
A rodless cylinder characterized in that both ends are connected to a slider (6) and the movement of a piston (3) is transmitted to the slider (6).