JP3214269B2 - Upper and lower door type stopper device - Google Patents
Upper and lower door type stopper deviceInfo
- Publication number
- JP3214269B2 JP3214269B2 JP30443394A JP30443394A JP3214269B2 JP 3214269 B2 JP3214269 B2 JP 3214269B2 JP 30443394 A JP30443394 A JP 30443394A JP 30443394 A JP30443394 A JP 30443394A JP 3214269 B2 JP3214269 B2 JP 3214269B2
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- door
- cam
- protrusion
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、上下開閉式扉のストッ
パー装置に係わり、更に詳しくはドラフトチャンバーや
窓サッシ、更には各種開閉扉等の上下開閉式の扉を開放
途中又は閉止途中の状態で保持するためのストッパー装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stopper device for a vertical opening / closing door, and more particularly to a state in which a vertical opening / closing door such as a draft chamber, a window sash, and various doors is being opened or closed. The present invention relates to a stopper device for holding with a.
【０００２】[0002]
【従来の技術】従来、この種の上下開閉式扉のストッパ
ー装置は各種提供されている。例えば、本出願人の先願
に係る実開平３−８６０３９号公報には、ドラフトチャ
ンバー本体内に扉のガイドレールに沿って回転軸を並設
し、該回転軸にストッパーの一端を固定するとともに、
該回転軸の下端部と、ドラフトチャンバー本体の前面に
設けた操作ハンドルとをリンク機構によって連動させ、
操作ハンドルを回転操作することによって回転軸を回転
させて前記ストッパーを扉の通過領域に突出させ、該ス
トッパーで扉の上縁又は下縁を当止できるようになした
ストッパー装置が開示されている。2. Description of the Related Art Conventionally, various types of stopper devices for this type of up-and-down doors have been provided. For example, Japanese Unexamined Utility Model Publication No. 3-86039 according to the prior application of the present applicant discloses that a rotating shaft is arranged side by side along a guide rail of a door in a draft chamber main body, and one end of a stopper is fixed to the rotating shaft. ,
The lower end of the rotating shaft and the operation handle provided on the front surface of the draft chamber main body are linked by a link mechanism,
A stopper device is disclosed in which a rotation shaft is rotated by rotating an operation handle to cause the stopper to protrude into a passage area of the door, and the stopper can stop an upper edge or a lower edge of the door. .
【０００３】しかし、前述のストッパー装置は、ドラフ
トチャンバーの前面の操作パネルに設けた操作ハンドル
を操作してストッパーに扉を係脱することが簡単にでき
る利点があるものの、ストッパーの連動機構が複雑であ
り、コスト高となる欠点を有している。[0003] However, the above-mentioned stopper device has an advantage that the door can be easily disengaged from the stopper by operating an operation handle provided on an operation panel on the front of the draft chamber, but the interlocking mechanism of the stopper is complicated. However, there is a disadvantage that the cost is high.
【０００４】そこで、本出願人は、実開平４−１０１４
８６号公報にて開示される如く、扉を上下方向へ摺動自
在に案内するガイドレールに、上部に扉下端縁を支持す
る支持部を有するストッパーをガイドレールの開口部の
内外に垂直な軸にて回動して出没するように取付け、且
つその先端部がガイドレールの溝内に設けた縦凸条に係
止し得るようになした簡易な構造のストッパー装置が提
供されている。このストッパー装置は、ストッパーの単
又は複数個をガイドレールの所定高さ位置に取付けてお
き、扉を開放途中の状態に保持するときには、扉をその
扉下端縁が一旦前記ストッパーの位置より上方に位置す
るところまで引き上げ、このストッパーをガイドレール
内に回動してその先端部をガイドレール内に設けた縦凸
条に係止した状態となした後、扉を降ろしてストッパー
上部の支持部にて前記扉下端縁を支持することにより、
扉を所定高さ位置に保持するのである。また、扉を閉止
する場合には、前述の保持状態から一旦扉を引き上げ、
ストッパーをガイドレールの開口部より外側まで回動し
た後、扉を引き下げるようにするのである。尚、この例
は、扉が無負荷の状態で下がる構造のものであるが、扉
を常時上方へ付勢した構造の場合には、ストッパー装置
の上下関係を逆にすればよいのである。[0004] The applicant of the present invention has proposed a technique disclosed in Japanese Utility Model Application Laid-Open No. 4-1014.
As disclosed in Japanese Patent No. 86, a stopper having a support portion for supporting a lower end edge of a door is provided on a guide rail for guiding a door slidably in a vertical direction. There is provided a stopper device having a simple structure, which is mounted so as to rotate so as to protrude and retract, and a tip end portion of which can be engaged with a vertical ridge provided in a groove of a guide rail. In this stopper device, one or more stoppers are attached at a predetermined height position of a guide rail, and when the door is held in the middle of opening, the door lower edge is once raised above the stopper position. The stopper is pivoted into the guide rail, the tip of the stopper is locked to the vertical ridge provided in the guide rail, and then the door is lowered to the support on the stopper. By supporting the lower edge of the door with
The door is held at a predetermined height. When closing the door, once the door is pulled up from the above holding state,
After the stopper is turned to the outside of the opening of the guide rail, the door is pulled down. Note that this example has a structure in which the door is lowered with no load, but in the case of a structure in which the door is constantly urged upward, the vertical relationship of the stopper device may be reversed.
【０００５】[0005]
【発明が解決しようとする課題】ところが、このような
従来のストッパー装置にあっては、扉の開放方向と同方
向、即ち垂直方向にストッパーの回動軸を設けているの
で、該ストッパーが不意に水平方向に回動して扉に接触
したり、ストッパーが手前側に突出する恐れがある。ま
た、保持状態を解除する場合には、ガイドレールの開口
部内に位置した先端部を手前に引き出さなければなら
ず、その作業性において若干の問題を残していた。However, in such a conventional stopper device, since the rotation axis of the stopper is provided in the same direction as the opening direction of the door, that is, in the vertical direction, the stopper is unexpectedly provided. There is a danger that the door will turn horizontally and come into contact with the door, or the stopper will protrude forward. In order to release the holding state, the end located inside the opening of the guide rail must be pulled out to the front, which leaves some problems in workability.
【０００６】そこで、本発明が前述の状況に鑑み、解決
しようとするところは、通常はストッパーが係止状態と
なっていて扉を開放途中又は閉止途中で係止することが
できるとともに、指でストッパーを操作して扉が通過し
得る通過状態を自己保持でき、その状態で扉を開放又は
閉止した後、扉を再度閉止又は開放する際に扉がストッ
パーを通過すると同時に、自動的に係止状態に復帰する
上下開閉式扉のストッパー装置を提供する点にある。[0006] In view of the above situation, the present invention seeks to solve the problem, in that the stopper is normally in a locked state so that the door can be locked during opening or closing, and the finger can be used. By operating the stopper, the passing state through which the door can pass can be held by itself, and after the door is opened or closed in that state, when the door is closed or opened again, the door automatically locks as soon as the door passes through the stopper An object of the present invention is to provide a stopper device for a vertically openable door that returns to a state.
【０００７】[0007]
【課題を解決するための手段】本発明は、前述の課題解
決のために、開口部の両側に縦設した一対のガイドレー
ルに沿って上下方向に開閉する扉を開放途中又は閉止途
中の状態で保持する上下開閉式扉のストッパー装置であ
って、扉の側部に手前側に突出した突部を有し、前記ガ
イドレールより手前側開口部の所定高さ位置の上下に、
ストッパーと回動カムとをそれぞれ奥行方向の回転軸に
て回動可能に取付け、前記ストッパーは、前記突部の移
動空間内に一端の保持部が回転突出する方向に弾性付勢
され、他端の係合部が前記回動カムと係脱するものであ
り、前記回動カムは、中間部に形成したカム部が前記ス
トッパーの係合部に当接する方向に回転付勢され、先端
の操作部が前記移動空間に出没するものであり、前記係
合部の回転半径とカム部の回転半径との和が両回転軸の
軸芯間距離より大きく設定し、前記保持部が前記移動空
間内にある係止状態で、前記カム部と係合部との係合は
解除され且つ前記操作部は前記移動空間外に位置し、前
記保持部が前記移動空間外にある通過状態で、前記カム
部は前記係合部に係合してその状態を維持し且つ前記操
作部は前記移動空間内に位置してなり、回動カムとは反
対側から扉の突部がストッパーに接近する場合、係止状
態では前記突部を保持部の保持縁で当止し、通過状態で
は突部が通過する際に該突部が操作部を回動させてカム
部と係合部との係合を解除して係止状態に自動復帰し、
一方、回動カム側から扉の突部がストッパーに接近する
場合、係止状態では突部が通過する際に該突部が保持部
の側縁に衝突してストッパーを回動させた後再び係止状
態に復帰してなる上下開閉式扉のストッパー装置を構成
した。In order to solve the above-mentioned problems, the present invention provides a state in which a door that opens and closes vertically along a pair of guide rails vertically provided on both sides of an opening is being opened or closed. A stopper device for a vertically openable and closed door that is held at a side of the door, having a protruding portion protruding toward the near side, above and below a predetermined height position of an opening on the near side from the guide rail,
A stopper and a rotation cam are each rotatably mounted on a rotation shaft in a depth direction, and the stopper is elastically biased in a direction in which a holding portion at one end rotates and protrudes into a movement space of the protrusion, and the other end. Is engaged with the rotating cam, and the rotating cam is urged to rotate in a direction in which a cam portion formed at an intermediate portion comes into contact with the engaging portion of the stopper. Part is protruded and retracted in the moving space, and the sum of the rotating radius of the engaging part and the rotating radius of the cam part is set to be larger than the distance between the axes of the two rotating shafts. In the locked state, the engagement between the cam portion and the engaging portion is released, and the operating portion is located outside the moving space, and the cam portion is in a passing state in which the holding portion is outside the moving space. The part engages with the engaging part and maintains the state, and the operating part is When the protrusion of the door approaches the stopper from the side opposite to the rotating cam, the protrusion is stopped by the holding edge of the holding portion in the locked state, and the protrusion is in the passing state. When passing, the projections rotate the operation unit to release the engagement between the cam unit and the engagement unit and automatically return to the locked state,
On the other hand, when the projection of the door approaches the stopper from the rotating cam side, when the projection passes in the locked state, the projection collides with the side edge of the holding portion, and the stopper is rotated again. A stopper device for an up / down opening / closing type door that is returned to the locked state is configured.
【０００８】また、前述の上下開閉式扉のストッパー装
置において、開口部の両側に縦設した一対のガイドレー
ルに沿って上下方向に開閉し、カウンターウエイトにて
常時バランスがとれ又は上方へ開放する方向に付勢され
た扉を開放途中の状態で保持する上下開閉式扉のストッ
パー装置であって、扉の側部に手前側に突出した突部を
有し、前記ガイドレールより手前側開口部の所定高さ位
置の下方にストッパーを、上方に回動カムを、接近させ
てそれぞれ奥行方向の回転軸にて回動可能に取付け、前
記ストッパーは、前記突部の移動空間内に下端の保持部
が回転突出する方向に弾性付勢され、上端の係合部が前
記回動カムと係脱するものであり、前記回動カムは、中
間部下方に形成したカム部が前記ストッパーの係合部に
当接する方向に偏心した自重にて回転付勢され、先端の
操作部が前記移動空間に出没するものであることが好ま
しい実施例である。In the above-mentioned stopper device for the vertical opening / closing door, the door is opened and closed vertically along a pair of guide rails vertically provided on both sides of the opening, and is always balanced or opened upward by a counterweight. A stopper device for a vertically openable and closed door that holds a door biased in a direction in the middle of opening, having a protrusion protruding toward the near side on the side of the door, and an opening on the near side from the guide rail. A stopper is attached below the predetermined height position, and a rotating cam is attached upward so as to be rotatable about a rotating shaft in the depth direction, and the stopper holds the lower end in the moving space of the protrusion. The engaging portion at the upper end is engaged with and disengaged from the rotary cam, and the cam portion formed below the intermediate portion is engaged with the stopper by the elastic portion. Part Is rotated urged by the own weight, it is the preferred embodiment the operation of the tip is to haunt the movement space.
【０００９】[0009]
【作用】以上の如き内容からなる本発明の上下開閉式扉
のストッパー装置は、開口部の両側に縦設した一対のガ
イドレールに沿って上下方向に開閉し、カウンターウエ
イトにて常時バランスがとれ又は上方へ開放する方向に
付勢された扉を開放途中の状態で保持するものを例に説
明すれば、先ず扉が閉止した状態では、初期状態として
前記ストッパーの保持部が突出して前記移動空間内にあ
るとともに、ストッパーの係合部と回動カムのカム部と
は係合せず、ストッパーの側縁にカム部が単に当接した
係止状態にあるとし、この係止状態で扉を上昇させる
と、該扉の側部に手前側に突設した突部がストッパーの
保持部の保持縁に当止し、所定の高さ即ち予め定められ
た開放途中の状態で扉を保持する。そして、扉を開放す
る場合には、扉を若干押し下げた後、ストッパーの保持
部を弾性付勢力に抗して指で押し込んで突部の移動空間
外に位置させると、ストッパーの係合部が回動カムを回
転させながらカム部を通過し、該係合部に回動カムの操
作部が載置された状態になり、それから指を離すとスト
ッパーの弾性付勢力によって係合部がカム部に係合して
その状態を維持し、もって保持部が移動空間外にあり、
回動カムの操作部が移動空間内に突出した通過状態にな
る。この通過状態に設定した後、扉を上昇させると、扉
の突部がストッパーを通過した後、回動カムの操作部を
押し上げてカム部とストッパーの係合部との係合を解除
すると同時に、ストッパーの保持部は弾性付勢力によっ
て移動空間内に突出し、更に扉の突部が上昇して回動カ
ムを通過すると、回動カムも偏心した自重による回転付
勢力によってカム部がストッパーの側縁に当接するまで
回転し、初期の係止状態に自動復帰する。それから、扉
を閉止する場合には、扉を押し下げると、扉の突部が回
動カムを通過した後、ストッパーの保持部の側縁に衝突
して該ストッパーを弾性付勢力に抗して回転させて、該
保持部を移動空間の境界まで後退させ、該突部が保持部
を通過した直後に、ストッパーは弾性付勢力によって保
持部が移動空間内に突出した係止状態に再度自動復帰す
るのである。The stopper device for a vertically openable door according to the present invention having the above contents opens and closes vertically along a pair of guide rails vertically provided on both sides of the opening, and is always balanced by a counterweight. Or, in a case where the door urged in the direction of opening upward is held in the middle of opening, for example, when the door is closed, the holding portion of the stopper projects as an initial state and the moving space And the engaging portion of the stopper does not engage with the cam portion of the rotating cam, and the cam portion is simply in contact with the side edge of the stopper, and the door is raised in this locked state. When this is done, the protrusion protruding forward from the side of the door abuts against the holding edge of the holding portion of the stopper, and holds the door at a predetermined height, that is, in a predetermined halfway opening state. When the door is to be opened, after slightly depressing the door, the retaining portion of the stopper is pushed with a finger against the elastic urging force and positioned outside the moving space of the protrusion, and the engaging portion of the stopper is The rotating cam passes through the cam portion while rotating, and the operating portion of the rotating cam is placed on the engaging portion. When the finger is released, the engaging portion is elastically biased by the stopper, and the engaging portion is moved to the cam portion. To maintain that state, the holding part is outside the moving space,
The operating portion of the rotating cam is in a passing state protruding into the moving space. After setting this passage state, when the door is raised, after the protrusion of the door passes through the stopper, the operating part of the rotating cam is pushed up to release the engagement between the cam part and the engaging part of the stopper, and at the same time The holding portion of the stopper projects into the moving space by the elastic urging force, and further, when the protrusion of the door rises and passes through the rotating cam, the rotating cam is also moved to the side of the stopper by the rotational urging force due to the eccentric weight of the rotating cam. It rotates until it comes into contact with the edge and automatically returns to the initial locked state. Then, when closing the door, when the door is pushed down, the protrusion of the door passes through the rotating cam, then collides with the side edge of the holding portion of the stopper, and rotates the stopper against the elastic biasing force. Then, the holding portion is retracted to the boundary of the moving space, and immediately after the protrusion passes through the holding portion, the stopper automatically returns to the locked state in which the holding portion protrudes into the moving space again by the elastic urging force. It is.
【００１０】[0010]
【実施例】次に添付図面に示した実施例に基づき更に本
発明の詳細を説明する。図１は本発明の上下開閉式扉の
ストッパー装置を適用したドラフトチャンバー１の全体
を示し、図２は要部の拡大斜視図、図３はその分解斜視
図、図４はその断面図をそれぞれ示している。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 1 shows the entirety of a draft chamber 1 to which a stopper device for a vertically openable door according to the present invention is applied, FIG. 2 is an enlarged perspective view of a main part, FIG. 3 is an exploded perspective view thereof, and FIG. Is shown.
【００１１】前記ドラフトチャンバー１は、内部に処理
室２を有し、その前面を開口部３となしたものであり、
処理室２は排気ダクト４を通じて図示しない排気装置に
よって排気できるものである。そして、前記開口部３に
は、その両側に縦設した一対のガイドレール５，５に沿
って上下方向に開閉するガラス製の扉６が設けられてい
る。The draft chamber 1 has a processing chamber 2 inside and an opening 3 on the front surface thereof.
The processing chamber 2 can be exhausted by an exhaust device (not shown) through an exhaust duct 4. The opening 3 is provided with a glass door 6 that opens and closes vertically along a pair of guide rails 5, 5 vertically provided on both sides of the opening 3.
【００１２】本実施例では、前記扉６が図示しないカウ
ンターウエイトにワイヤーを介して連結されていて、上
方へ開放する方向に付勢されているとするが、カウンタ
ーウエイトとバランスがとれている場合も同様である。
そして、前記扉６は、ガラス板７の両側に断面コ字形の
ガイドレール５の溝内でガタつきなく摺動するための側
枠８を固定し、下縁に把手９を固定したものである。ま
た、前記把手９は手前側に突出してあり、その側部を突
部１０としている。In this embodiment, the door 6 is connected to a counter weight (not shown) via a wire and is urged in a direction to open upward. However, when the door 6 is balanced with the counter weight. The same is true for
The door 6 has a side frame 8 fixed to both sides of a glass plate 7 for sliding without looseness in a groove of the guide rail 5 having a U-shaped cross section, and a handle 9 fixed to a lower edge. . Further, the handle 9 protrudes toward the near side, and a side portion thereof is a protrusion 10.
【００１３】本発明は、開口部３の両側に縦設した一対
のガイドレール５，５に沿って上下方向に開閉し、カウ
ンターウエイトにて上方へ開放する方向に付勢された扉
６を開放途中の状態で保持する上下開閉式扉のストッパ
ー装置Ａであって、扉６の側部に手前側に突出した突部
１０を有し、前記ガイドレール５より手前側開口部３の
所定高さ位置の下方にストッパー１１を、上方に回動カ
ム１２を、接近させてそれぞれ奥行方向の回転軸１３，
１４にて回動可能に取付け、前記ストッパー１１は、前
記突部１０の移動空間Ｓ内に下端の保持部１５が回転突
出する方向に弾性付勢され、上端の係合部１６が前記回
動カム１２と係脱するものであり、前記回動カム１２
は、中間部下方に形成したカム部１７が前記ストッパー
１１の係合部１６に当接する方向に偏心した自重にて回
転付勢され、先端の操作部１８が前記移動空間Ｓに出没
するものであり、前記係合部１６の回転半径Ｒ1 とカム
部１７の回転半径Ｒ2 との和が両回転軸１３，１４の軸
芯間距離Ｄより大きく設定し、前記保持部１５が前記移
動空間Ｓ内にある係止状態で、前記カム部１７と係合部
１６との係合は解除され且つ前記操作部１８は前記移動
空間Ｓ外に位置し、前記保持部１５が前記移動空間Ｓ外
にある通過状態で、前記カム部１７は前記係合部１６に
係合してその状態を維持し且つ前記操作部１８は前記移
動空間Ｓ内に位置してなり、下方から扉６の突部１０が
ストッパー１１に接近する場合、係止状態では前記突部
１０を保持部１５の保持縁１９で当止し、通過状態では
突部１０が通過する際に該突部１０が操作部１８を回動
させてカム部１７と係合部１６との係合を解除して係止
状態に自動復帰し、一方、上方から扉６の突部１０がス
トッパー１１に接近する場合、係止状態では突部１０が
通過する際に該突部１０が保持部１５の側縁２０に衝突
してストッパー１１を回動させた後再び係止状態に復帰
してなることを要旨としている。According to the present invention, the door 6 is opened and closed in a vertical direction along a pair of guide rails 5 and 5 vertically provided on both sides of the opening 3, and the door 6 urged in a direction of opening upward by a counterweight is opened. A stopper device A for a vertically openable / closable door that is held in the middle of the door, having a protrusion 10 protruding toward the near side on the side of the door 6, and a predetermined height of the opening 3 on the near side from the guide rail 5. The stopper 11 is located below the position, and the rotating cam 12 is approached above, so that the rotating shafts 13 and
The stopper 11 is resiliently urged in the direction in which the lower holding portion 15 projects in the moving space S of the projection 10, and the upper engagement portion 16 rotates. The rotating cam 12 is engaged with and disengaged from the cam 12.
The cam portion 17 formed below the intermediate portion is rotationally urged by its own weight eccentric in the direction in which the cam portion 17 comes into contact with the engaging portion 16 of the stopper 11, and the operating portion 18 at the tip comes and goes in the moving space S. There, the rotation radius R 1 and the sum of the turning radius R 2 of the cam portion 17 is set larger than the axial distance D of the rotary shafts 13 and 14, the holding portion 15 is the moving space of the engaging portion 16 In the locked state inside S, the engagement between the cam portion 17 and the engaging portion 16 is released, and the operation portion 18 is located outside the moving space S, and the holding portion 15 is located outside the moving space S. In the passing state, the cam portion 17 is engaged with the engaging portion 16 to maintain the state, and the operating portion 18 is located in the moving space S, and the protrusion of the door 6 is formed from below. When the stopper 10 approaches the stopper 11, the protrusion 10 is In the passing state, the protrusion 10 rotates the operating portion 18 when the protrusion 10 passes, and releases the engagement between the cam portion 17 and the engagement portion 16 and locks. When the protrusion 10 of the door 6 approaches the stopper 11 from above, the protrusion 10 collides with the side edge 20 of the holding portion 15 when the protrusion 10 passes in the locked state. Then, the stopper 11 is rotated and then returned to the locked state again.
【００１４】更に詳しくは、前記ストッパー装置Ａは、
図２〜図４に示すように、断面コ字形の保持金具２１の
凹溝２２内に、前記ストッパー１１、回動カム１２及び
弾性付勢手段としてのキックばね２３を内装したもので
ある。尚、弾性付勢手段としては、前記キックばね２３
の他にも板ばね等の公知の弾性体を利用することができ
る。具体的には、ストッパー装置Ａは、前記保持金具２
１の一方の側板２４の上下に形成した通孔２５，２５に
ネジ２６，２６を挿通し、他方の側板２４に形成した螺
孔２７，２７に螺合し、凹溝２２内に位置するネジ２
６，２６をそれぞれ回転軸１３，１４とし、該回転軸１
３にストッパー１１の中央部に形成した貫通孔２８に挿
通した軸筒２９を外挿するとともに、該貫通孔２８から
突出した軸筒２９の一端部にキックばね２３のコイル部
２３ａを巻回し、一方の脚片２３ｂを保持縁１９側に係
止し、他方の脚片２３ｃを保持金具２１の底板３０に当
止し、該ストッパー１１の保持部１５を回転突出する方
向に弾性付勢し、また前記回転軸１４に回動カム１２の
基部に形成した貫通孔３１を回転可能に嵌挿したもので
ある。ここで、前記両回転軸１３，１４の軸芯間距離Ｄ
は、両ネジ２６，２６の中心間距離に相当する。そし
て、保持金具２１の底板３０の上下部をドラフトチャン
バー１の開口部３の側面にネジ３２，３２にて固定する
のである。特に、上方のネジ３２の頭部３３は、回動カ
ム１２の操作部１８の背面を当止して、該回動カム１２
がどのような状態にあってもその偏心した自重によって
前記カム部１７がストッパー１１の係合部１６に当接す
る方向に回転復帰するようにしている。More specifically, the stopper device A comprises:
As shown in FIGS. 2 to 4, the stopper 11, the rotating cam 12, and a kick spring 23 as elastic biasing means are provided inside a concave groove 22 of a holding bracket 21 having a U-shaped cross section. The elastic biasing means includes the kick spring 23.
In addition, a known elastic body such as a leaf spring can be used. Specifically, the stopper device A is provided with the holding fitting 2.
Screws 26, 26 are inserted into through holes 25, 25 formed above and below one side plate 24, and screwed into screw holes 27, 27 formed in the other side plate 24, and are located in the groove 22. 2
6 and 26 are rotation shafts 13 and 14, respectively.
3, a shaft tube 29 inserted through a through hole 28 formed in the center of the stopper 11 is extrapolated, and a coil portion 23a of the kick spring 23 is wound around one end of the shaft tube 29 protruding from the through hole 28. One leg piece 23b is locked to the holding edge 19 side, the other leg piece 23c is abutted against the bottom plate 30 of the holding metal fitting 21, and the holding portion 15 of the stopper 11 is elastically urged in a direction to protrude. Further, a through hole 31 formed at the base of the rotary cam 12 is rotatably fitted to the rotary shaft 14. Here, the distance D between the shaft centers of the rotating shafts 13 and 14 is represented by D
Corresponds to the distance between the centers of the screws 26, 26. Then, the upper and lower portions of the bottom plate 30 of the holding fitting 21 are fixed to the side surfaces of the opening 3 of the draft chamber 1 with screws 32, 32. In particular, the head 33 of the upper screw 32 abuts the back surface of the operating portion 18 of the rotating cam 12,
In any state, the cam portion 17 rotates and returns in the direction in which the cam portion 17 comes into contact with the engaging portion 16 of the stopper 11 due to the eccentric own weight.
【００１５】また、前記ストッパー１１は、正面視形状
が略台形であり、台形の略中央部であって下底寄り位置
に前記貫通孔２８を形成し、台形の上底を保持金具２１
の底板３０に近接して配設している。そして、キックば
ね２３の弾性付勢力によって、ストッパー１１の保持部
１５が前記移動空間Ｓ内に突出した状態にある場合に
は、係合部１６が保持金具２１の底板３０に当接すると
ともに、保持部１５をキックばね２３の弾性付勢力に抗
して押し込んだ場合には、保持部１５を含めてストッパ
ー１１の全体が前記移動空間Ｓ外になるとともに、更に
保持部１５を押し込んでストッパー１１の台形における
上底の縁部を底板３０に当接するまで後退させることが
できる。また、前記突部１０の移動空間Ｓの境界と、前
記保持金具２１の側板２４との間にはクリアランスを設
けてあり、前記保持部１５はこのクリアランス程度の後
退が可能である。そして、前記回転軸１３を中心として
係合部１６の先端が描く軌跡の回転半径Ｒ1 は、前記軸
芯間距離Ｄよりも小さく設定している。The stopper 11 has a substantially trapezoidal shape in a front view, the through hole 28 is formed at a substantially central portion of the trapezoid near the lower bottom, and the upper bottom of the trapezoid is formed by a holding fitting 21.
Is disposed in the vicinity of the bottom plate 30. When the holding portion 15 of the stopper 11 is protruded into the moving space S by the elastic urging force of the kick spring 23, the engaging portion 16 contacts the bottom plate 30 of the holding member 21 and holds the holding member. When the portion 15 is pushed in against the elastic biasing force of the kick spring 23, the entire stopper 11 including the holding portion 15 is outside the moving space S, and the holding portion 15 is further pushed in to push the stopper 11 in. The edge of the upper bottom of the trapezoid can be retracted until it contacts the bottom plate 30. Further, a clearance is provided between the boundary of the movement space S of the protrusion 10 and the side plate 24 of the holding metal member 21, and the holding portion 15 can retreat by this clearance. Then, the rotation radius R 1 locus tip draws the engaging portion 16 around the rotating shaft 13 is set to be smaller than the inter-axis distance D.
【００１６】また、前記回動カム１２は、やや長細い形
状を有し、重心から偏心した基端部に前記貫通孔３１を
形成するとともに、中間部の下縁に突出したカム部１７
を形成し、先端部を操作部１８となしたものである。前
記カム部１７は、回転軸１４を中心とした回転半径Ｒ2
の円弧縁１７ａと、該円弧縁１７ａから基端部に延びた
直線状の当接縁１７ｂとから形成されている。また、回
動カム１２が、回転軸１４を中心に回転して略水平にな
った状態で、前記操作部１８は前記移動空間Ｓ内に突出
するような寸法に設定し、前記回転半径Ｒ2 は、勿論前
述の軸芯間距離Ｄよりも小さく設定されている。そし
て、前記回転半径Ｒ1 と回転半径Ｒ2 の和を、軸芯間距
離Ｄよりも大きく設定している。The rotary cam 12 has a slightly elongated shape, the through-hole 31 is formed at a base end eccentric from the center of gravity, and the cam portion 17 protrudes from the lower edge of the intermediate portion.
Is formed, and the distal end portion is used as the operation section 18. The cam portion 17 has a rotation radius R 2 around the rotation shaft 14.
And a linear contact edge 17b extending from the arc edge 17a to the base end. When the rotating cam 12 is rotated about the rotation shaft 14 and is substantially horizontal, the operation unit 18 is set to have such a size as to protrude into the moving space S, and the rotation radius R 2 is set. Is, of course, set to be smaller than the distance D between the axes. Then, the sum of the rotation radius R 1 and the rotation radius R 2, is set larger than the inter-axis distance D.
【００１７】次に、本発明のストッパー装置Ａの動作を
図５及び図６に基づいて説明する。この動作の代表的な
状態をフェーズ１（Ｐ１）からフェーズ９（Ｐ９）とし
て示している。先ず、前記扉６は閉止した状態にあると
する。扉６が閉止した状態では、初期状態として前記ス
トッパー１１の保持部１５が突出して前記移動空間Ｓ内
にあるとともに、ストッパー１１の係合部１６と回動カ
ム１２のカム部１７とは係合せず、ストッパー１１の側
縁２０にカム部１７が単に当接した係止状態にあるとす
る（Ｐ１）。この係止状態で扉６を上昇させると、該扉
６の側部に手前側に突設した突部１０がストッパー１１
の保持部１５の保持縁１９に当止し、所定の高さ即ち予
め定められた開放途中の状態で扉６を保持する（Ｐ
１）。Next, the operation of the stopper device A of the present invention will be described with reference to FIGS. Typical states of this operation are shown as phase 1 (P1) to phase 9 (P9). First, it is assumed that the door 6 is in a closed state. In a state where the door 6 is closed, the holding portion 15 of the stopper 11 projects as an initial state in the moving space S, and the engaging portion 16 of the stopper 11 and the cam portion 17 of the rotary cam 12 are engaged. Instead, it is assumed that the cam portion 17 is merely in contact with the side edge 20 of the stopper 11 in a locked state (P1). When the door 6 is raised in this locked state, a protrusion 10 protruding forward from a side of the door 6
And holds the door 6 at a predetermined height, that is, in a state of being opened in a predetermined manner (P
1).
【００１８】そして、扉６を開放する場合には、扉６を
若干押し下げた後、ストッパー１１の保持部１５をキッ
クばね２３の弾性付勢力に抗して指で押し込んで突部１
０の移動空間Ｓ外に位置させると（Ｐ２）、ストッパー
１１の係合部１６が回動カム１２の当接縁１７ｂを摺動
して回動カム１２を回転させながらカム部１７を通過
し、更に押し込むと該係合部１６に回動カム１２の操作
部１８が載置された状態になり、それから指を離すとス
トッパー１１の弾性付勢力によって係合部１６がカム部
１７の円弧縁１７ａにに係合してその状態を維持し、も
って保持部１５が移動空間Ｓ外にあり、回動カム１２の
操作部１８が移動空間Ｓ内に突出した通過状態になる
（Ｐ３）。この通過状態に設定した後、扉６を上昇させ
ると（Ｐ４）、扉６の突部１０がストッパー１１を通過
した後、回動カム１２の操作部１８を押し上げてカム部
１７とストッパー１１の係合部１６との係合を解除する
と同時に、ストッパー１１の保持部１５は弾性付勢力に
よって移動空間Ｓ内に突出し、係合部１６が保持金具２
１の底板３０に当接し（Ｐ５）、更に扉６の突部１０が
上昇して回動カム１２を通過すると（Ｐ６）、回動カム
１２も偏心した自重による回転付勢力によってカム部１
７がストッパー１１の側縁２０に当接するまで回転し、
初期の係止状態に自動復帰する（Ｐ７）。When the door 6 is to be opened, the door 6 is slightly depressed, and then the holding portion 15 of the stopper 11 is pushed with a finger against the elastic biasing force of the kick spring 23 to thereby project the projection 1.
0 (P2), the engaging portion 16 of the stopper 11 slides on the contact edge 17b of the rotating cam 12 and passes through the cam portion 17 while rotating the rotating cam 12. When the operating portion 18 of the rotary cam 12 is placed on the engaging portion 16 when further pressed, the finger is released, and the engaging portion 16 is resiliently biased by the stopper 11 so that the engaging portion 16 becomes an arc edge of the cam portion 17. The state is maintained by engaging with the holding member 17a, so that the holding portion 15 is outside the moving space S, and the operating portion 18 of the rotary cam 12 is in a passing state protruding into the moving space S (P3). After setting the passage state, when the door 6 is lifted (P4), after the protrusion 10 of the door 6 passes through the stopper 11, the operation unit 18 of the rotary cam 12 is pushed up to move the cam 17 and the stopper 11 together. At the same time when the engagement with the engaging portion 16 is released, the holding portion 15 of the stopper 11 projects into the moving space S by the elastic urging force, and the engaging portion 16 is
1 (P5), and when the projection 10 of the door 6 further rises and passes through the rotating cam 12 (P6), the rotating cam 12 is also eccentrically rotated by its own weight to generate the cam portion 1.
7 rotates until it comes into contact with the side edge 20 of the stopper 11,
It automatically returns to the initial locked state (P7).
【００１９】それから、扉６を閉止する場合には、扉６
を押し下げると（Ｐ７）、扉６の突部１０が係止状態に
ある回動カム１２を通過した後、ストッパー１１の保持
部１５の側縁２０に衝突して該ストッパー１１を弾性付
勢力に抗して回転し、それに伴ってストッパー１１の係
合部１６が回動カム１２の当接縁１７ｂを摺動しながら
回動カム１２を回転させて、該保持部１５を移動空間Ｓ
の境界まで後退させ（Ｐ８）、該突部１０が保持部１５
を通過した直後に、ストッパー１１は弾性付勢力によっ
て保持部１５が移動空間Ｓ内に突出し、回動カム１２の
カム部１７がストッパー１１の側縁２０に当接した係止
状態に再度自動復帰するのである（Ｐ９）。Then, when closing the door 6, the door 6
Is pressed down (P7), after the protrusion 10 of the door 6 passes through the rotating cam 12 in the locked state, it collides with the side edge 20 of the holding portion 15 of the stopper 11, and the stopper 11 is resiliently biased. Accordingly, the engaging portion 16 of the stopper 11 rotates the rotating cam 12 while sliding on the contact edge 17b of the rotating cam 12, thereby moving the holding portion 15 into the moving space S.
(P8), and the protrusion 10 is
Immediately after passing, the stopper 11 automatically returns to the locked state in which the holding portion 15 protrudes into the moving space S by the elastic urging force, and the cam portion 17 of the rotating cam 12 abuts the side edge 20 of the stopper 11. (P9).
【００２０】以上のようにして構成された本発明の上下
開閉式扉のストッパー装置は、ドラフトチャンバー１の
開閉方向側縁適所に使用すれば、扉６を開放途中の状態
で保持した状態で、腕等を処理室２内に差し入れて作業
を行っていても、キックばね２３の弾性付勢力によって
ストッパー１１の保持部１５が突出した状態を維持し、
該保持部１５によって扉６の突部１０を当止しているた
め、不意に扉６が上昇することがなく、安心して作業を
することができるのである。また、扉を半開き状態で位
置固定することは、図示しないエアーカーテンによる空
気流及び排気装置による排気能を予め設定した最適な条
件に維持するためにも重要である。The stopper device for the vertical opening / closing door according to the present invention configured as described above can be used in a state where the door 6 is held in the middle of opening, if it is used at an appropriate position in the opening / closing side edge of the draft chamber 1. Even when the operation is performed by inserting the arm or the like into the processing chamber 2, the state where the holding portion 15 of the stopper 11 is projected by the elastic biasing force of the kick spring 23 is maintained,
Since the projecting portion 10 of the door 6 is stopped by the holding portion 15, the door 6 does not rise unexpectedly, and the work can be performed with confidence. It is also important to fix the position of the door in a half-open state in order to maintain the air flow by the air curtain (not shown) and the exhaust performance by the exhaust device at optimal conditions set in advance.
【００２１】しかし、本発明は、ドラフトチャンバー１
への使用に限定するものではなく、上下に摺動する開閉
式扉を有する窓サッシやその他の扉装置のストッパー装
置として広く適用し得ることは勿論である。そして、図
示したものは、一方のガイドレール５の側縁適所にのみ
設けたものであるが、相対向する両ガイドレール５，５
の側縁適所に取付けても良いのである。更に、複数のス
トッパー装置Ａ，…を高さ位置を変えて取付け、扉６の
開放量を多段階に調節できるようにすることも可能であ
る。However, according to the present invention, the draft chamber 1
However, the present invention is not limited to the use as a stopper device for a window sash having an openable door that slides up and down and other door devices. Although the illustrated one is provided only at an appropriate position on the side edge of one of the guide rails 5, the two guide rails 5 and 5 facing each other are provided.
It can be attached to the right side edge. Further, a plurality of stopper devices A,... May be mounted at different heights so that the opening amount of the door 6 can be adjusted in multiple stages.
【００２２】更に、本実施例では、扉６が上方へ開放す
る方向へ付勢されたものであったが、扉６の自重によっ
て下方へ閉止する方向に付勢されたものでは、前述のス
トッパー装置Ａのストッパー１１と回動カム１２の上下
関係を逆にすれば、扉６の閉止途中の状態で保持するこ
とも可能である。この場合には、前記回動カム１２の操
作部１８側よりも基部を重くして自重にてカム部１７が
ストッパー１１の係合部１６に当接する方向に付勢した
り、又は前記キックばね２３と同様なばねで弾性付勢す
るのである。Further, in the present embodiment, the door 6 is urged in the direction of opening upward, but if the door 6 is urged in the direction of closing downward by its own weight, the stopper 6 is used. If the vertical relationship between the stopper 11 and the rotating cam 12 of the device A is reversed, it is possible to hold the door 6 in the state of being closed. In this case, the base portion of the rotary cam 12 is made heavier than the operation portion 18 side, and the cam portion 17 is biased by its own weight in a direction in which the cam portion 17 comes into contact with the engagement portion 16 of the stopper 11, or the kick spring It is elastically biased by a spring similar to 23.
【００２３】[0023]
【発明の効果】以上にしてなる本発明の上下開閉式扉の
ストッパー装置によれば、上下方向に摺動開閉する扉を
開放途中又は閉止途中の状態で、所定高さ位置に安定に
保持することができ、その位置決めにも手間がかからな
いとともに、扉に不意に接触してもストッパーの保持部
によって扉の突部が確実に当止されているので、扉が移
動することがないのである。また、扉の係止状態の解除
もストッパーの保持部を押し込むだけの操作で極めて簡
単であり、しかも解除状態を自己保持するので、ストッ
パー装置から指を離して扉の把手を持って扉の開閉操作
をすることができる。また、従来のようにストッパーが
水平方向に回動することがないので、ストッパーが扉に
接触したり、手前に突出することがなく、極めてコンパ
クトである。According to the stopper device for a vertically openable and closable door according to the present invention, the vertically slidably opened and closed door is stably held at a predetermined height while being opened or closed. The positioning can be performed without any trouble, and even if the door is unexpectedly contacted, the protrusion of the door is securely stopped by the holding portion of the stopper, so that the door does not move. In addition, releasing the locked state of the door is extremely simple by simply pushing the holding part of the stopper, and since the released state is self-holding, release your finger from the stopper device and hold the door handle to open and close the door Can operate. Further, since the stopper does not rotate in the horizontal direction as in the related art, the stopper does not come into contact with the door and does not protrude to the front, so that it is extremely compact.
【図１】本発明の上下開閉式扉のストッパー装置を採用
したドラフトチャンバーの全体斜視図である。FIG. 1 is an overall perspective view of a draft chamber that employs a stopper device for a vertically openable door according to the present invention.
【図２】同じく要部の拡大断面斜視図である。FIG. 2 is an enlarged sectional perspective view of a main part of the same.
【図３】同じく要部の分解斜視図である。FIG. 3 is an exploded perspective view of the same main part.
【図４】同じく組立てた状態の縦断面図である。FIG. 4 is a vertical sectional view of the same assembled state.
【図５】本発明の上下開閉式扉のストッパー装置の動作
の前半部分を示す簡略断面図である。FIG. 5 is a simplified cross-sectional view showing the first half of the operation of the stopper device for the up / down opening / closing door according to the present invention.
【図６】同じくストッパー装置の動作の後半部分を示す
簡略断面図である。FIG. 6 is a simplified sectional view showing the latter half of the operation of the stopper device.
Ａ ストッパー装置 Ｓ 突部の移動空間 １ ドラフトチャンバー ２ 処理室 ３ 開口部 ４ 排気ダクト ５ ガイドレール ６ 扉 ７ ガラス板 ８ 側枠 ９ 把手 １０ 突部 １１ ストッパー １２ 回動カム １３ 回転軸 １４ 回転軸 １５ 保持部 １６ 係合部 １７ カム部 １７ａ 円弧縁 １７ｂ 当接縁 １８ 操作部 １９ 保持縁 ２０ 側縁 ２１ 保持金具 ２２ 凹溝 ２３ キックばね ２３ａ コイル部 ２３ｂ，２３ｃ 脚片 ２４ 側板 ２５ 通孔 ２６ ネジ ２７ 螺孔 ２８ 貫通孔 ２９ 軸筒 ３０ 底板 ３１ 貫通孔 ３２ ネジ ３３ 頭部 Reference Signs List A Stopper device S Moving space of protrusion 1 Draft chamber 2 Processing chamber 3 Opening 4 Exhaust duct 5 Guide rail 6 Door 7 Glass plate 8 Side frame 9 Handle 10 Projection 11 Stopper 12 Rotating cam 13 Rotating shaft 14 Rotating shaft 15 Holding portion 16 Engaging portion 17 Cam portion 17a Arc edge 17b Contact edge 18 Operating portion 19 Holding edge 20 Side edge 21 Holding bracket 22 Depressed groove 23 Kick spring 23a Coil portion 23b, 23c Leg piece 24 Side plate 25 Through hole 26 Screw 27 Screw hole 28 Through hole 29 Shaft tube 30 Bottom plate 31 Through hole 32 Screw 33 Head
Claims (2)
ールに沿って上下方向に開閉する扉を開放途中又は閉止
途中の状態で保持する上下開閉式扉のストッパー装置で
あって、扉の側部に手前側に突出した突部を有し、前記
ガイドレールより手前側開口部の所定高さ位置の上下
に、ストッパーと回動カムとをそれぞれ奥行方向の回転
軸にて回動可能に取付け、前記ストッパーは、前記突部
の移動空間内に一端の保持部が回転突出する方向に弾性
付勢され、他端の係合部が前記回動カムと係脱するもの
であり、前記回動カムは、中間部に形成したカム部が前
記ストッパーの係合部に当接する方向に回転付勢され、
先端の操作部が前記移動空間に出没するものであり、前
記係合部の回転半径とカム部の回転半径との和が両回転
軸の軸芯間距離より大きく設定し、前記保持部が前記移
動空間内にある係止状態で、前記カム部と係合部との係
合は解除され且つ前記操作部は前記移動空間外に位置
し、前記保持部が前記移動空間外にある通過状態で、前
記カム部は前記係合部に係合してその状態を維持し且つ
前記操作部は前記移動空間内に位置してなり、回動カム
とは反対側から扉の突部がストッパーに接近する場合、
係止状態では前記突部を保持部の保持縁で当止し、通過
状態では突部が通過する際に該突部が操作部を回動させ
てカム部と係合部との係合を解除して係止状態に自動復
帰し、一方、回動カム側から扉の突部がストッパーに接
近する場合、係止状態では突部が通過する際に該突部が
保持部の側縁に衝突してストッパーを回動させた後再び
係止状態に復帰してなることを特徴とする上下開閉式扉
のストッパー装置。1. A stopper device for an up / down opening / closing door for holding a door which opens and closes in a vertical direction along a pair of guide rails vertically provided on both sides of an opening, while the door is being opened or closed. A side portion has a protruding portion protruding toward the near side, and a stopper and a rotating cam can be rotatable about a depth axis in a vertical direction above and below a predetermined height position of the opening on the near side from the guide rail. The stopper is elastically urged in a direction in which the holding portion at one end is rotatably projected into the movement space of the projection, and the engagement portion at the other end is engaged with and disengaged from the rotating cam. The moving cam is urged to rotate in a direction in which a cam portion formed in the intermediate portion comes into contact with the engaging portion of the stopper,
The operating portion at the tip is retracted into and out of the moving space, the sum of the rotating radius of the engaging portion and the rotating radius of the cam portion is set to be larger than the distance between the axes of the two rotating shafts, and the holding portion is In the locked state in the moving space, the engagement between the cam portion and the engaging portion is released, and the operating portion is located outside the moving space, and in the passing state in which the holding portion is outside the moving space. The cam portion engages with the engaging portion to maintain the state, and the operating portion is located in the moving space, and the protrusion of the door approaches the stopper from the side opposite to the rotating cam. If you do
In the locked state, the protrusion is stopped by the holding edge of the holding part, and in the passing state, when the protrusion passes, the protrusion rotates the operating part to engage the cam part with the engaging part. When the protrusion of the door approaches the stopper from the rotating cam side when the door is released and automatically returns to the locked state, when the projected part passes in the locked state, the protrusion contacts the side edge of the holding part. A stopper device for an up-and-down opening / closing door, wherein the stopper device is returned to a locked state after a collision and the stopper is rotated.
ールに沿って上下方向に開閉し、カウンターウエイトに
て常時バランスがとれ又は上方へ開放する方向に付勢さ
れた扉を開放途中の状態で保持する上下開閉式扉のスト
ッパー装置であって、扉の側部に手前側に突出した突部
を有し、前記ガイドレールより手前側開口部の所定高さ
位置の下方にストッパーを、上方に回動カムを、接近さ
せてそれぞれ奥行方向の回転軸にて回動可能に取付け、
前記ストッパーは、前記突部の移動空間内に下端の保持
部が回転突出する方向に弾性付勢され、上端の係合部が
前記回動カムと係脱するものであり、前記回動カムは、
中間部下方に形成したカム部が前記ストッパーの係合部
に当接する方向に偏心した自重にて回転付勢され、先端
の操作部が前記移動空間に出没するものである請求項１
記載の上下開閉式扉のストッパー装置。2. A door which is opened and closed in a vertical direction along a pair of guide rails vertically provided on both sides of an opening, and which is always balanced by a counterweight or is urged in a direction of opening upward. A stopper device for an upper / lower opening / closing type door that holds in a state, having a protrusion protruding toward the near side on the side of the door, and a stopper below a predetermined height position of the near side opening from the guide rail, A rotating cam is attached to the upper part so as to be close to each other so as to be rotatable about the rotation shaft in the depth direction,
The stopper is elastically urged in a direction in which a holding portion at a lower end rotates and protrudes into a moving space of the protrusion, and an engaging portion at an upper end is engaged with and disengaged from the rotating cam. ,
The cam portion formed below the intermediate portion is rotationally urged by its own weight eccentric in a direction in which the cam portion contacts the engagement portion of the stopper, and the operation portion at the tip projects and retracts into the moving space.
A stopper device for the vertical opening / closing door as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30443394A JP3214269B2 (en) | 1994-12-08 | 1994-12-08 | Upper and lower door type stopper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30443394A JP3214269B2 (en) | 1994-12-08 | 1994-12-08 | Upper and lower door type stopper device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08158727A JPH08158727A (en) | 1996-06-18 |
| JP3214269B2 true JP3214269B2 (en) | 2001-10-02 |
Family
ID=17932951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30443394A Expired - Fee Related JP3214269B2 (en) | 1994-12-08 | 1994-12-08 | Upper and lower door type stopper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3214269B2 (en) |
-
1994
- 1994-12-08 JP JP30443394A patent/JP3214269B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08158727A (en) | 1996-06-18 |
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