JP2005083517A

JP2005083517A - Thrusting device

Info

Publication number: JP2005083517A
Application number: JP2003318066A
Authority: JP
Inventors: Shiyounai Yasuda; 庄内安田
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-10
Filing date: 2003-09-10
Publication date: 2005-03-31

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thrusting device having simple low-cost construction adequate for long-distance thrust without requiring accurate machining. <P>SOLUTION: A hose-shaped flexible body is arranged in a gap between an outer cylinder and a thruster in a double folded manner. The flexible body is fixed at one outside end between one end of the outer cylinder and an outer cylinder lid while keeping itself air-tight. The end of the thruster inserted into the inside of the outer cylinder is connected to one inside end of the folded flexible body in air-tightness. Gas or fluid such as liquid is filled into a space formed between the outer cylinder lid and the hose-shaped flexible body, and the outer cylinder and the inside thruster are mutually elongated or, in turn, mutually contracted by removing the fluid therefrom. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

流体圧を利用した押圧装置に関し、自動扉の開閉装置や、電車、自動車等に使われる空気バネ装置としても利用出来る。 Regarding the pressing device using fluid pressure, it can also be used as an automatic door opening / closing device or an air spring device used in trains, automobiles, and the like.

従来の押圧装置としては、シリンダーとピストンを組み合わせた自動扉の開閉装置や、電車、自動車等に使われるベローズを用いた空気バネ装置等がある。
前者は気密を保つためにシリンダーとピストンを精密に加工する必要があり、また、動作を滑かにするための油脂類が劣化すると気密が悪くなったり、動作も悪くなる難点があった。
後者のベローズは、長くなるほど大きな内圧によって外方に大きく膨張するため、長い距離の押圧には適当でなかった。
特開平６−１４７２４８号公報特開平８−２４７１９７号公報 As a conventional pressing device, there are an automatic door opening / closing device combining a cylinder and a piston, an air spring device using a bellows used in a train, an automobile and the like.
In the former, it is necessary to precisely process the cylinder and the piston in order to maintain airtightness, and when the oils and fats for smoothing the operation deteriorate, the airtightness is deteriorated and the operation is also difficult.
The latter bellows is not suitable for long-distance pressing because the longer the bellows, the larger the pressure expands outward due to a large internal pressure.
JP-A-6-147248 JP-A-8-247197

本発明は上記実情に鑑み、精密な加工を必要とはせず、構造が簡単で、且つ長い距離の押圧にも適した押圧装置を提供することである。 In view of the above circumstances, the present invention provides a pressing device that does not require precise processing, has a simple structure, and is suitable for pressing over a long distance.

本発明は上記目的を達成するため、外筒と押圧体の隙間に、ホース状の可撓性体を二重に折り返し配置し、その可撓性体の外側の一端を外筒の一端と外筒蓋との間に気密性を保つように固定し、外筒の内側に挿入した押圧体の端部と、前記折り返した可撓体の内側の一端と気密を有するように連結し、外筒蓋とホース状の可撓体によって形成される空間に気体、又は液体等の流体を注入して外筒と内側の押圧体を相互に伸長させ、逆に流体を抜いて相互に縮短させることを特徴とする。
本発明の押圧装置において、外筒側を固定すれば押圧体が可動部として押圧を行ない、逆に押圧体側を固定すれば外筒側が可動部として押圧を行なうことになる。 In order to achieve the above-mentioned object, the present invention has a double hose-like flexible body disposed in the gap between the outer cylinder and the pressing body, and one outer end of the flexible body is connected to one end of the outer cylinder and the outer cylinder. It is fixed so as to maintain airtightness between the cylinder lid, and is connected to the end of the pressing body inserted inside the outer cylinder and the one end inside the folded flexible body so as to be airtight, Injecting a fluid such as gas or liquid into the space formed by the lid and the hose-like flexible body to mutually extend the outer cylinder and the inner pressing body, and conversely pulling out the fluid to shorten each other Features.
In the pressing device of the present invention, if the outer cylinder side is fixed, the pressing body presses as a movable part, and conversely if the pressing body side is fixed, the outer cylinder side presses as a movable part.

ここで、可撓性体の外側の一端を外筒の一端と外筒蓋との間に気密性を保つように固定するとは、パイプ状の外筒の端に外筒蓋を取り付け、この外筒と外筒蓋の間に可撓性体の一端を挟むようにして連結固定してもよく、また、有底の外筒の底部に可撓性体の一端を連結しても良く、ねらいは気密性を確保して連結することにある。 Here, fixing the outer end of the flexible body so as to maintain airtightness between the end of the outer cylinder and the outer cylinder lid means attaching the outer cylinder lid to the end of the pipe-shaped outer cylinder. One end of the flexible body may be connected and fixed between the cylinder and the outer cylinder lid, or one end of the flexible body may be connected to the bottom of the bottomed outer cylinder. It is to secure and connect.

また、ホース状の可撓体としたのは「くだ」状の円筒をいい、ゴムチューブや樹脂チューブのように自由に変形し、２重に折り返すことができるものならば材質が限定されない趣旨である。 Also, the hose-like flexible body is a “cylinder” -shaped cylinder, and the material is not limited as long as it can be freely deformed and folded back like a rubber tube or a resin tube. is there.

本発明にて押圧体とは、棒状のものを外筒の内側に挿入するのが目的であり、直接棒状体を外筒の内側に挿入し、その挿入した端部に、二重に折り返したホースの内側の一端を気密性を確保しつつ連結してもよく、パイプ状の内筒を挿入し、この内筒の一端にホースの一端を連結し、この内筒に棒状体を挿入してもよい。 In the present invention, the pressing body is intended to insert a rod-shaped object inside the outer cylinder, and the rod-shaped body is directly inserted inside the outer cylinder and folded back twice at the inserted end. One end of the hose may be connected while ensuring airtightness, a pipe-shaped inner cylinder is inserted, one end of the hose is connected to one end of the inner cylinder, and a rod-shaped body is inserted into the inner cylinder Also good.

以上説明したように、この発明の押圧装置によれば、構造が簡単であるため、コストが安価になり、また長い距離の押圧にも適している。そのため、応用範囲が広くなる。 As described above, according to the pressing device of the present invention, since the structure is simple, the cost is low, and it is suitable for pressing over a long distance. Therefore, the application range is widened.

本発明はいろいろな面に応用できるが、以下説明する実施形態は空気圧を使って牽引装置として利用するものであり、押圧装置を上下縦方向に配置し、押圧棒を支柱として椅子の後部に縦に固定した型式のものである。 Although the present invention can be applied to various aspects, the embodiment described below is used as a traction device using air pressure, and the pressing device is arranged vertically and vertically, and the pressing bar is used as a support column in the vertical part of the chair. It is of the type fixed to

図１は本発明に係る押圧装置の原理を説明するための模式図を示し、（イ）が押圧装置の無負荷時を示す縦断面図である。この状態から、エアーホース５を通じてノズル５ａから、外筒蓋１ａとホース３によって構成される空間Ｖに空気を送り込んで行くと、外筒が空気圧によって上方に押し上げられて行く。この状態が（ロ）である。
この時、二重に折り返されているホース３の外側は、空気圧によって外筒内面に押し付けられ、逆に内側は押圧体に押し付けられる。そしてホースの折り返し部分３ｃを上方に移動しながら外筒は押し上げられて行き、（ロ）に示す伸長動作になる。 FIG. 1 is a schematic view for explaining the principle of a pressing device according to the present invention, and (A) is a longitudinal sectional view showing the pressing device when no load is applied. From this state, when air is sent from the nozzle 5a through the air hose 5 to the space V constituted by the outer cylinder lid 1a and the hose 3, the outer cylinder is pushed upward by air pressure. This state is (b).
At this time, the outer side of the hose 3 that is folded back is pressed against the inner surface of the outer cylinder by air pressure, and the inner side is pressed against the pressing body. Then, the outer cylinder is pushed up while moving the folded portion 3c of the hose upward, and the extension operation shown in (b) is performed.

逆に押圧時の状態から、外筒蓋とホースによって構成される空間から空気を排出してやれば、ホースの折り返し部分３ｃを下方に移動しながら、外筒は自重によって自然に下方に戻って行き、図１（イ）に示す無負荷の状態になる。すなわち復元用のバネ等は要らない。
なお、図１は外筒１と外筒蓋１ａでホースの端部３ａを固定した例を示したが、有底の外筒の底部に直接ホースを固定してもよい。
また、図１は内筒２を介してその開口部２ｂから押圧棒４を外筒に挿入した例を示す。このような型式にすると、押圧装置から押圧棒を着脱するのが簡単になって、組み立てや分解が容易になる。
この場合に、ホースの端３ｂは内筒２の底裏２ａで連結されている。
図２に示すように内筒２の端に内蓋６を設けてホースの端３ｂと連結してもよい。
また、図３に示すように直接押圧棒４を挿入してホースの端部と連結してもよい。 Conversely, if the air is exhausted from the space formed by the outer cylinder lid and the hose from the pressed state, the outer cylinder will naturally go back downward by its own weight while moving the folded portion 3c of the hose downward, The unloaded state shown in FIG. That is, a restoring spring or the like is not required.
In addition, although FIG. 1 showed the example which fixed the hose end part 3a with the outer cylinder 1 and the outer cylinder lid 1a, you may fix a hose directly to the bottom part of a bottomed outer cylinder.
FIG. 1 shows an example in which the pressing rod 4 is inserted into the outer cylinder from the opening 2b through the inner cylinder 2. With this type of model, it becomes easy to attach and detach the pressing rod from the pressing device, and assembly and disassembly are facilitated.
In this case, the end 3 b of the hose is connected to the bottom back 2 a of the inner cylinder 2.
As shown in FIG. 2, an inner lid 6 may be provided at the end of the inner cylinder 2 and connected to the end 3b of the hose.
Moreover, as shown in FIG. 3, you may insert the press bar 4 directly and may connect with the edge part of a hose.

図４に示すように、押圧装置の上に２個の滑車２３を備えたブラケット２１を、椅子の前後方向に取り付け、両滑車にロープ２２を通して前側の端に牽引装具２０を吊り下げて置き、後側の端を、押圧棒（支柱）の後部に突き出したロープ固定ブラケット２４に固定する。この状態でエアーホース５を通して外筒蓋とホースによって構成される空間に空気を送り込むと、可動部（外筒、外筒蓋、ブラケット、滑車）が上方に押し上げられ、牽引装具も上へ引き上げられる。
すなわち押圧力が牽引装置として利用されるのである。
この時、牽引装具は滑車の原理によって、可動部の上昇量Ｈの倍量引き上げられることになる。これは全体の高さを低くするために大変有利なことである。 As shown in FIG. 4, a bracket 21 having two pulleys 23 is attached on the pressing device in the front-rear direction of the chair, the ropes 22 are passed through both pulleys, and the traction equipment 20 is hung on the front end. The rear end is fixed to the rope fixing bracket 24 protruding from the rear part of the pressing rod (support). In this state, when air is sent through the air hose 5 to the space formed by the outer cylinder lid and the hose, the movable part (outer cylinder, outer cylinder lid, bracket, pulley) is pushed upward, and the traction equipment is also raised upward. .
That is, the pressing force is used as a traction device.
At this time, the traction device is pulled up by the double amount H of the movable portion by the principle of the pulley. This is very advantageous for reducing the overall height.

押圧装置の伸縮の原理を説明する模式図を示す。（イ）が縮んだ状態、（ロ）が押圧伸びようとしている状態を示す。The schematic diagram explaining the principle of expansion-contraction of a press apparatus is shown. (A) indicates a contracted state, and (B) indicates a state where the pressure is about to be extended. ホースの内側の端を内筒の端と蓋を介して連結した例を示す。An example in which the inner end of the hose is connected to the end of the inner cylinder via a lid is shown. 内筒を用いず直接棒状体を外筒に挿入した例を示す。An example in which a rod-like body is directly inserted into an outer cylinder without using an inner cylinder is shown. 押圧装置を牽引装置として利用した実施形態を、使用状態で示す全体図である。It is a general view which shows embodiment using a press apparatus as a traction apparatus in a use condition.

符号の説明Explanation of symbols

１０押圧装置
１外筒
１ａ外筒蓋
２内筒（押圧体）
３ホース（可撓体）
４押圧棒
５エアーホース
６内蓋
２０牽引装具
２１ブラケット（可動）
２２ロープ
２３滑車
２４固定ブラケット
DESCRIPTION OF SYMBOLS 10 Press apparatus 1 Outer cylinder 1a Outer cylinder lid 2 Inner cylinder (pressing body)
3 Hose (flexible body)
4 Press rod 5 Air hose 6 Inner lid 20 Traction equipment 21 Bracket (movable)
22 rope 23 pulley 24 fixing bracket

Claims

外筒と押圧体の隙間に、ホース状の可撓性体を二重に折り返し配置し、その可撓性体の外側の一端を外筒の一端と外筒蓋との間に気密性を保つように固定し、外筒の内側に挿入した押圧体の端部と、前記折り返した可撓体の内側の一端と気密を有するように連結し、外筒蓋とホース状の可撓体によって形成される空間に気体、又は液体等の流体を注入すると、外筒と内側の押圧体が相互に伸長し、流体を抜くと逆に相互に縮短することを特徴とする押圧装置。
A hose-like flexible body is folded back in the gap between the outer cylinder and the pressing body, and one end outside the flexible body is kept airtight between one end of the outer cylinder and the outer cylinder lid. The end of the pressing body inserted inside the outer cylinder and the one end inside the folded flexible body are connected so as to be airtight, and formed by an outer cylinder lid and a hose-like flexible body When a fluid such as gas or liquid is injected into the space, the pressing device is characterized in that the outer cylinder and the inner pressing body extend to each other and conversely contract to each other when the fluid is removed.