JP2007224684A - Door opening/closing mechanism - Google Patents

Door opening/closing mechanism Download PDF

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JP2007224684A
JP2007224684A JP2006050018A JP2006050018A JP2007224684A JP 2007224684 A JP2007224684 A JP 2007224684A JP 2006050018 A JP2006050018 A JP 2006050018A JP 2006050018 A JP2006050018 A JP 2006050018A JP 2007224684 A JP2007224684 A JP 2007224684A
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door
closer
air pressure
valve
opening
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JP4866101B2 (en
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Osamu Nagasawa
收 永澤
Yuji Kinoshita
有司 木下
Toshihiko Shimozono
利彦 下園
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Hino Motors Ltd
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Hino Motors Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a door opening/closing mechanism capable of preventing a door from being opened even if one of pneumatic supply systems leading to a door engine and a closer is damaged. <P>SOLUTION: The door opening/closing mechanism comprises the door engine 2 for opening/closing the door 1; the closer 4 restraining the door 1 in a state of closing a getting-on/off opening 3; a first solenoid valve 5 applying pneumatic pressure to the door engine 2; and a second solenoid valve 6 applying pneumatic pressure to the closer 4. A first emergency opening valve 18 openable to the atmosphere by manual operation is connected to the first solenoid valve 5, and a second emergency opening valve 19 openable to the atmosphere by manual operation is connected to the second solenoid valve 6. These emergency opening valves 18, 19 are connected to a pneumatic pressure supply source pipe 16 through different check valves 20, 21 to separate the pneumatic pressure supply system to the door engine 2 and the pneumatic pressure supply system to the door closer 4 from each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明はドア開閉機構に関するものである。   The present invention relates to a door opening / closing mechanism.

バスの乗降口に組み付けるドアには、折戸式、引戸式、スイングアウト式、及びアウトスライド式などがあり、開閉用のドアエンジンを備えている（例えば、特許文献１参照）。   Doors to be assembled at bus entrances and exits include a folding door type, a sliding door type, a swing-out type, an out-slide type, and the like, and includes a door engine for opening and closing (for example, see Patent Document 1).

このうち、ドアが乗降口を塞ぐ位置とそれに隣り合った乗降口を開け放つ位置の間を、車体外側面に沿って移動するアウトスライド式は、折戸式に比べると、ドア周囲のウエザストリップの総延長が短くなるために気密性を保持しやすく、引戸式に比べると、戸袋が不要なので車体の軽量化を図ることができ、しかも、スイングアウト式に比べると、開放したドアが大きく外方へ張り出すことがない、という利点があり、今後、これを採用する車種が増えてくると思われる。   Of these, the outslide type, which moves along the outer surface of the vehicle, between the position where the door closes the doorway and the position where the doorway adjacent to the doorway is opened, compared to the folding door type, the weatherstrip around the door. Since the total length is shorter, it is easier to maintain airtightness. Compared to the sliding door type, the doors are not required, so the vehicle body can be lightened. There is an advantage that it does not overhang, and it seems that the number of models that adopt this will increase in the future.

図３はアウトスライド式を対象にしたドア開閉機構の一例であり、ドア１を開閉するドアエンジン２と、乗降口３を閉ざしている状態のドア１を拘束するクローザ４と、前記ドアエンジン２に対して付与する空気圧の方向を切り換える第１の電磁弁５と、前記クローザ４に空気圧を付与する第２の電磁弁６と、手動操作により大気開放可能な非常開放弁７とを備えている。   FIG. 3 shows an example of a door opening / closing mechanism for an out-slide type. The door engine 2 opens and closes the door 1, the closer 4 holds the door 1 in a state where the entrance 3 is closed, and the door engine 2. The first solenoid valve 5 for switching the direction of the air pressure applied to the first, the second solenoid valve 6 for applying the air pressure to the closer 4, and the emergency release valve 7 that can be opened to the atmosphere by manual operation. .

ドア１は、乗降口３の上下に設けたレール８，９によって車体前後方向に導かれ、車体前方寄りへ移動すると乗降口３を覆い閉ざす状態となり、反対に車体後方寄りへ移動すると乗降口３を開け放つ状態となる。   The door 1 is guided in the longitudinal direction of the vehicle body by rails 8 and 9 provided at the upper and lower sides of the entrance / exit 3 and moves toward the front of the vehicle to close the entrance / exit 3, and conversely moves toward the rear of the vehicle 3 It will be in the state which opens.

ドアエンジン２は空気圧シリンダであり、そのピストンロッド１０が水平に車体後方側を向くように車体の乗降口３前方上側に組み付けられ、更に、ピストンロッド１０の先端部分には、ドア１前端上部に付帯し且つレール８を転動するガイドローラユニット１１が連結され、ドア１の前端下部には、レール９を転動するガイドローラユニット１２が付帯している。   The door engine 2 is a pneumatic cylinder and is assembled on the front upper side of the entrance / exit 3 of the vehicle body so that the piston rod 10 faces the rear side of the vehicle body horizontally. A guide roller unit 11 that is attached and rolls on the rail 8 is connected, and a guide roller unit 12 that rolls on the rail 9 is attached to the lower portion of the front end of the door 1.

つまり、ドアエンジン２のロッド側室に空気圧を付与すると、ドア１が乗降口３を覆い閉ざす位置へ動く。   That is, when air pressure is applied to the rod side chamber of the door engine 2, the door 1 moves to a position where the door 3 covers and closes the entrance / exit 3.

また、ドアエンジン２のキャップ側室に空気圧を付与すると、ドア１が乗降口３を開け放つ位置へ動く。   When air pressure is applied to the cap side chamber of the door engine 2, the door 1 moves to a position where the doorway 3 is opened.

クローザ４は空圧シリンダであり、車体の乗降口３後方至近に組み付けられ、ピストンロッド１３の先端部分には、その動きに応じて水平に回動するフック１４が設けてある。   The closer 4 is a pneumatic cylinder, assembled near the rear of the entrance / exit 3 of the vehicle body, and provided with a hook 14 that rotates horizontally in accordance with its movement at the tip of the piston rod 13.

ドア１が乗降口３を閉ざしている状態であるときに、クローザ４のロッド側室に空気圧を付与すると、ピストンロッド１３の動きに応じて回動するフック１４が、ドア１に付帯させた垂直なバー１５に係合し且つ車体中心側へと引き寄せて、当該ドア１を車体に拘束する。   When air pressure is applied to the rod side chamber of the closer 4 when the door 1 is closed, the hook 14 that rotates according to the movement of the piston rod 13 is attached to the door 1 in the vertical direction. The door 1 is engaged with the bar 15 and pulled toward the center of the vehicle body to restrain the door 1 to the vehicle body.

また、クローザ４のキャップ側室に空気圧を付与すると、ピストンロッド１３の動きに応じてフック１４が回動し、前記バー１５を解き放って、ドア１の拘束を解除する。   Further, when air pressure is applied to the cap side chamber of the closer 4, the hook 14 rotates according to the movement of the piston rod 13, releasing the bar 15 and releasing the restraint of the door 1.

第１の電磁弁５は、ソレノイド５ｓが励磁されないときには、ドアエンジン２のロッド側室に空気圧を付与し且つドアエンジン２のキャップ側室とクローザ４のキャップ側室の双方を大気開放する状態に設定される。   When the solenoid 5s is not excited, the first solenoid valve 5 is set to apply air pressure to the rod side chamber of the door engine 2 and open both the cap side chamber of the door engine 2 and the cap side chamber of the closer 4 to the atmosphere. .

反対に、ソレノイド５ｓが励磁されているときには、ドアエンジン２のキャップ側室とクローザ４のキャップ側室の双方にに空気圧を付与し且つドアエンジン２のロッド側室を大気開放する状態に設定される。   On the other hand, when the solenoid 5s is energized, air pressure is applied to both the cap side chamber of the door engine 2 and the cap side chamber of the closer 4 and the rod side chamber of the door engine 2 is set in a state of opening to the atmosphere.

第２の電磁弁６は、ソレノイド６ｓが励磁されていないときには、クローザ４のロッド側室に空気圧を付与する状態に設定され、反対に、ソレノイド６ｓが励磁されているときには、クローザ４のロッド側室を大気開放する状態に設定される。   The second solenoid valve 6 is set to apply air pressure to the rod side chamber of the closer 4 when the solenoid 6s is not excited. On the contrary, when the solenoid 6s is excited, the second solenoid valve 6 It is set to a state where it is released to the atmosphere.

これらの電磁弁５，６は、バス乗務員がドアスイッチを閉位置から開位置に動かすと、コントローラ（図示せず）がよってソレノイド５ｓ，６ｓが励磁される。   When the bus crew moves the door switch from the closed position to the open position, the solenoids 5s and 6s are excited by a controller (not shown).

ドアスイッチが開位置へ移動すると、コントローラは、はじめにソレノイド６ｓを励磁してクローザ４のロッド側室を大気開放し、引き続きソレノイド５ｓを励磁してクローザ４のキャップ側室とドアエンジン２のキャップ側室の双方に空気圧を付与するとともに、ドアエンジン２のロッド側室を大気開放する。   When the door switch is moved to the open position, the controller first excites the solenoid 6s to release the rod side chamber of the closer 4 to the atmosphere, and subsequently excites the solenoid 5s to both the cap side chamber of the closer 4 and the cap side chamber of the door engine 2. The air pressure is applied to the door and the rod side chamber of the door engine 2 is opened to the atmosphere.

これにより、車体に対するドア１の拘束が解除され、ドア１が後方側へと押し出されて乗降口３が開け放たれる。   Thereby, the restraint of the door 1 with respect to a vehicle body is cancelled | released, the door 1 is extruded to the back side, and the entrance / exit 3 is opened.

ドアスイッチが閉位置へ移動すると、コントローラは、はじめにソレノイド５ｓの励磁を中止してクローザ４のキャップ側室とドアエンジン２のキャップ側室の双方を大気開放するとともにドアエンジン２のロッド側室に空気圧を付与し、引き続きソレノイド６ｓの励磁を中断してクローザ４のロッド側室に空気圧を付与する。   When the door switch is moved to the closed position, the controller first stops the excitation of the solenoid 5s to release both the cap side chamber of the closer 4 and the cap side chamber of the door engine 2 to the atmosphere, and applies air pressure to the rod side chamber of the door engine 2. Subsequently, the excitation of the solenoid 6s is interrupted to apply air pressure to the rod side chamber of the closer 4.

これにより、ドア１が前方側へと引き戻されて乗降口３が覆い閉ざされ、車体に対してドア１が拘束される。   Thereby, the door 1 is pulled back to the front side, the entrance 3 is covered and closed, and the door 1 is restrained with respect to the vehicle body.

非常開放弁７は、前記電磁弁５，６の一次側と空気圧供給元管１６の間に介在し、手動操作によりノブ１７を引くと、ソレノイド５ｓ，６ｓが励磁されていなくても電磁弁５，６の二次側が大気開放状態になる。   The emergency release valve 7 is interposed between the primary side of the electromagnetic valves 5 and 6 and the air pressure supply source pipe 16, and when the knob 17 is pulled by a manual operation, the electromagnetic valve 5 can be operated even if the solenoids 5s and 6s are not excited. , 6 is open to the atmosphere.

この非常開放弁７は、搭乗者全員が速やかに車外へ出る必要がある場合などに使う。   The emergency release valve 7 is used when all the passengers need to get out of the vehicle promptly.

つまり、電磁弁５，６のソレノイド５ｓ，６ｓが励磁されず、乗降口３を覆い閉ざした状態のドア１がクローザ４によって車体に拘束されている状態でも、ノブ１７を引けさえすれば、ドアエンジン２のロッド側室とクローザ４のロッド側室が大気開放され、搭乗者がドア１を手動で開けることができるようになる。
特開２００３−７４５０９号公報 That is, even if the solenoids 5 s and 6 s of the electromagnetic valves 5 and 6 are not excited and the door 1 in a state of covering and closing the entrance / exit 3 is restricted to the vehicle body by the closer 4, as long as the knob 17 is pulled, the door The rod side chamber of the engine 2 and the rod side chamber of the closer 4 are opened to the atmosphere so that the passenger can manually open the door 1.
JP 2003-74509 A

しかしながら上述したドア開閉機構では、第１の電磁弁５及び第２の電磁弁６を同一の非常開放弁７に接続したので、ソレノイド５ｓ，６ｓが励磁されていない状態でも、空気圧供給元管１６からドアエンジン２のロッド側室の至る系統、または空気圧供給元管１６からクローザ４のロッド側室に至る系統のうちの何れか一方が損傷して空気圧が失陥した場合には健全な他方の系統も空気圧が失陥し、ドアエンジン２によるドア１の位置決め、並びにクローザ４によるドア１の拘束が不能になるため、登坂時の車体の傾き、もしくは搭乗者の手動操作などでもドア１が動いて開き得るようになってしまう。   However, in the door opening / closing mechanism described above, the first solenoid valve 5 and the second solenoid valve 6 are connected to the same emergency opening valve 7, so that the air pressure supply pipe 16 can be used even when the solenoids 5s, 6s are not excited. If any one of the system extending from the rod side chamber of the door engine 2 to the rod side chamber of the closer 4 is damaged and the air pressure is lost, Since the air pressure is lost, the door 1 cannot be positioned by the door engine 2 and the door 1 cannot be restrained by the closer 4. Therefore, the door 1 can be moved and opened even when the vehicle is tilted or the passenger is manually operated. Will get.

本発明は上述した実情に鑑みてなしたもので、ドアエンジン、あるいはクローザに至る空気圧供給系統の一方が損傷してもドアの開放を防止できるドア開閉機構を提供することを目的としている。   The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a door opening / closing mechanism capable of preventing the door from being opened even if one of the air supply system leading to the door engine or the closer is damaged.

上記目的を達成するため本発明は、空気圧が付与されたときにドアを開閉するドアエンジンと、空気圧が付与されたときに乗降口を閉ざしている状態のドアを拘束するクローザと、前記ドアエンジンに対して付与する空気圧の方向を切り換える第１の電磁弁と、前記クローザに空気圧を付与する第２の電磁弁とを備え、手動操作により大気開放可能な第１の非常開放弁を前記第１の電磁弁の一次側に接続し、手動操作により大気開放可能な第２の非常開放弁を前記第２の電磁弁の一次側に接続し、第１、第２の非常開放弁の一次側をそれぞれ別個の逆止弁を介して空気圧供給元管に接続する。   In order to achieve the above object, the present invention provides a door engine that opens and closes a door when air pressure is applied thereto, a closer that restrains a door that is closed when an air pressure is applied, and the door engine. A first solenoid valve that switches a direction of air pressure applied to the first and second solenoid valves that apply air pressure to the closer, and the first emergency release valve that can be opened to the atmosphere by manual operation. A second emergency opening valve that can be opened to the atmosphere by manual operation is connected to the primary side of the second electromagnetic valve, and the primary sides of the first and second emergency opening valves are connected Each is connected to a pneumatic supply pipe via a separate check valve.

つまり、空気圧供給元管からドアエンジンに空気圧を付与する系統に第１の非常開放弁を組み込み、空気圧供給元管からクローザに空気圧を付与する系統に第２の非常開放弁を組み込んだうえ、空気圧供給元管と第１、第２の非常開放弁との間に別個の逆止弁を介在させて、ドアエンジンへの空気圧付与系統とクローザへの空気圧付与系統の分離を図る。   In other words, the first emergency release valve is incorporated in the system that applies air pressure from the air pressure supply source pipe to the door engine, and the second emergency release valve is incorporated in the system that applies air pressure from the air pressure supply source pipe to the closer. A separate check valve is interposed between the supply pipe and the first and second emergency release valves to separate the air pressure application system to the door engine and the air pressure application system to the closer.

これに加えて、第１、第２の非常開放弁の双方が一回の動作で大気開放状態になり得るようにするために、第１、第２の非常開放弁の切換可動部分を相互に連結し且つ当該部分を同時に動かせる操作部材を設ける。   In addition, in order to allow both the first and second emergency release valves to be opened to the atmosphere in one operation, the switching movable parts of the first and second emergency release valves are mutually connected. An operating member that can be connected and moved simultaneously is provided.

本発明のドア開閉機構によれば、下記のような優れた効果を奏し得る。   According to the door opening / closing mechanism of the present invention, the following excellent effects can be obtained.

（１）ドアエンジンへの空気圧付与系統に組み込んだ第１の非常開放弁、クローザへの空気圧付与系統に組み込んだ第２の非常開放弁、及び空気圧供給元管と第１、第２の非常開放弁との間に別個に介在させた逆止弁が、ドアエンジンへの空気圧付与系統とクローザへの空気圧付与系統を分離し、両系統が互いに連通しないようになるので、ドアエンジン、あるいはクローザに至る空気圧供給系統の一方が損傷したとしても、ドアの開放を抑えることができる。   (1) The first emergency release valve incorporated in the air pressure application system to the door engine, the second emergency release valve incorporated in the air pressure application system to the closer, and the air pressure supply source pipe and the first and second emergency openings A check valve separately provided between the valves separates the air pressure application system to the door engine and the air pressure application system to the closer so that the two systems do not communicate with each other. Even if one of the leading air pressure supply systems is damaged, the opening of the door can be suppressed.

（２）第１、第２の非常開放弁の切換可動部分を同時に動かせる操作部材などを設け、一回の操作で第１、第２の非常開放弁の双方が大気開放状態になるような構成を採れば、非常時に搭乗者がドアを確実に開放することができる。   (2) A configuration in which an operation member or the like capable of moving the switching movable parts of the first and second emergency release valves at the same time is provided, and both the first and second emergency release valves are opened to the atmosphere by a single operation. By adopting, the passenger can reliably open the door in an emergency.

以下、本発明の実施の形態を図面に基づき説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１及び図２は本発明のドア開閉機構の一例を示すもので、図中、図３と同一の符号を付した部分は同一物を表わしており、ドア１を動かすドアエンジン２、ドア１を拘束するクローザ４、前記ドアエンジン２に空気圧を付与する第１の電磁弁５、前記クローザ４に空気圧を付与する第２の電磁弁６、手動操作により大気開放可能な第１の非常開放弁１８、及び手動操作により大気開放可能な第２の非常開放弁１９とを備えている。   1 and 2 show an example of a door opening / closing mechanism according to the present invention. In the figure, parts denoted by the same reference numerals as those in FIG. , A first electromagnetic valve 5 that applies air pressure to the door engine 2, a second electromagnetic valve 6 that applies air pressure to the closer 4, and a first emergency release valve that can be opened to the atmosphere by manual operation 18 and a second emergency release valve 19 that can be opened to the atmosphere by manual operation.

バス乗務員がドアスイッチを開位置に動かすと、クローザ４によるドア１の拘束が解除され、ドアエンジン２がドア１を後方側へと押し出して乗降口３を開け放つという作動、並びにバス乗務員がドアスイッチを閉位置に動かすと、ドアエンジン２がドア１を前方側へと引き戻して乗降口３を覆い閉ざし、クローザ４によりドア１が拘束されるという動作は、図３に示すものと同じである。   When the bus crew moves the door switch to the open position, the restraint of the door 1 by the closer 4 is released, the door engine 2 pushes the door 1 backward to open the entrance 3 and the bus crew opens the door switch. When the door is moved to the closed position, the door engine 2 pulls the door 1 back to cover and closes the entrance / exit 3, and the operation of the door 4 being restrained by the closer 4 is the same as that shown in FIG.

第１、第２の非常開放弁１８，１９は同一形状であり、互いに平行に並ぶように車体に組み付けてある。   The first and second emergency release valves 18 and 19 have the same shape and are assembled to the vehicle body so as to be arranged in parallel to each other.

第１の非常開放弁１８は第１の電磁弁５の一次側に接続され、手動操作によりスプールを引けば、ソレノイド５ｓが励磁されていない場合でも電磁弁５の二次側が大気開放状態になる。   The first emergency release valve 18 is connected to the primary side of the first electromagnetic valve 5, and if the spool is pulled by manual operation, the secondary side of the electromagnetic valve 5 is opened to the atmosphere even when the solenoid 5s is not excited. .

第２の非常開放弁１９は第２の電磁弁６の一次側に接続され、手動操作によりスプールを引くと、ソレノイド６ｓが励磁されていない場合でも電磁弁６の二次側が大気開放状態になる。   The second emergency release valve 19 is connected to the primary side of the second electromagnetic valve 6, and when the spool is pulled by manual operation, the secondary side of the electromagnetic valve 6 is opened to the atmosphere even when the solenoid 6s is not excited. .

これらの非常開放弁１８，１９の一次側は、それぞれ別個の逆止弁２０，２１を介して空気圧供給元管１６に接続してあり、ドアエンジン２のロッド側室への空気圧付与系統とクローザ４のロッド側室への空気圧付与系統とが互いに連通しないようになっている。   The primary sides of these emergency release valves 18 and 19 are connected to the air pressure supply pipe 16 through separate check valves 20 and 21, respectively. The air pressure application system to the rod side chamber is not communicated with each other.

第１、第２の非常開放弁１８，１９の切換可動部分であるスプールは、それらに対して直交する方向に延びるプレート２２により相互に連結され、当該プレート２２には、双方のスプールを同時に動かすためのノブ２３が設けてある。   The spools which are the switching movable parts of the first and second emergency release valves 18 and 19 are connected to each other by a plate 22 extending in a direction orthogonal to them, and both the spools are moved simultaneously to the plate 22. A knob 23 is provided.

この非常開放弁１８，１９は、搭乗者全員が速やかに車外へ出る必要がある場合などに使う。   The emergency release valves 18 and 19 are used when all the passengers need to quickly get out of the vehicle.

つまり、電磁弁５，６のソレノイド５ｓ，６ｓが励磁されず、乗降口３を覆い閉ざした状態のドア１がクローザ４によって車体に拘束されている状態でも、ノブ２３を引けさえすれば、ドアエンジン２のロッド側室とクローザ４のロッド側室が大気開放され、搭乗者がドア１を手動で開けることができるようになる。   That is, even if the solenoids 5 s and 6 s of the electromagnetic valves 5 and 6 are not excited and the door 1 in a state of covering and closing the entrance / exit 3 is restrained by the vehicle body by the closer 4, as long as the knob 23 is pulled, the door The rod side chamber of the engine 2 and the rod side chamber of the closer 4 are opened to the atmosphere, and the passenger can open the door 1 manually.

ソレノイド５ｓ，６ｓが励磁されていない状態で、ドアエンジン２のロッド側室に至る空気圧供給系統が損傷した際には、逆止弁２１がクローザ４のロッド側室の空気圧の失陥を抑え、ドア１の開放を防止する。   When the air pressure supply system reaching the rod side chamber of the door engine 2 is damaged in a state where the solenoids 5s and 6s are not excited, the check valve 21 suppresses the loss of air pressure in the rod side chamber of the closer 4 and the door 1 To prevent the opening of.

反対に、クローザ４のロッド側室に至る空気圧供給系統が損傷した際には、逆止弁２０がドアエンジン２のロッド側室の空気圧の失陥を抑え、ドア１の開放を防止する。   On the contrary, when the air pressure supply system leading to the rod side chamber of the closer 4 is damaged, the check valve 20 suppresses the loss of air pressure in the rod side chamber of the door engine 2 and prevents the door 1 from opening.

図１及び図２では非常開放弁１８，１９を分けた形で描いているが、これら非常開放弁１８，１９の回路の独立性さえ確保されれば、単一のハウジングに二本のスプールを内装した構成、更には当該スプールを一体化した構成を採ることも可能である。   In FIGS. 1 and 2, the emergency release valves 18 and 19 are depicted separately. However, as long as the circuit of the emergency release valves 18 and 19 is kept independent, two spools are provided in a single housing. It is also possible to adopt a configuration in which the spool is integrated, and further, the spool is integrated.

なお、本発明のドア開閉機構は、上述した実施の形態のみに限定されるものではなく、本発明の要旨を逸脱しない範囲において変更を加え得ることは勿論である。   It should be noted that the door opening / closing mechanism of the present invention is not limited to the above-described embodiment, and it is needless to say that changes can be made without departing from the gist of the present invention.

本発明のドア開閉機構は、様々な車種に適用できる。   The door opening / closing mechanism of the present invention can be applied to various vehicle types.

本発明のドア開閉機構の一例において非常開放弁が閉じた状態を示す回路図である。It is a circuit diagram which shows the state which the emergency open valve closed in an example of the door opening / closing mechanism of this invention. 本発明のドア開閉機構の一例において非常開放弁が開いた状態を示す回路図である。It is a circuit diagram which shows the state which the emergency open valve opened in an example of the door opening / closing mechanism of this invention. 従来のドア開閉機構の一例において非常開放弁が閉じた状態を示す回路図である。It is a circuit diagram which shows the state which the emergency opening valve closed in an example of the conventional door opening / closing mechanism.

符号の説明Explanation of symbols

１ ドア
２ ドアエンジン
３ 乗降口
４ クローザ
５ 第１の電磁弁
６ 第２の電磁弁
１６ 空気圧供給元管
１８ 第１の非常開放弁
１９ 第２の非常開放弁
２０ 逆止弁
２１ 逆止弁
２２ プレート（操作部材）
２３ ノブ（操作部材） DESCRIPTION OF SYMBOLS 1 Door 2 Door engine 3 Entrance / exit port 4 Closer 5 1st solenoid valve 6 2nd solenoid valve 16 Air pressure supply pipe | tube 18 1st emergency release valve 19 2nd emergency release valve 20 Check valve 21 Check valve 22 Plate (operation member)
23 Knob (operation member)

Claims (3)

空気圧が付与されたときにドアを開閉するドアエンジンと、空気圧が付与されたときに乗降口を閉ざしている状態のドアを拘束するクローザと、前記ドアエンジンに対して付与する空気圧の方向を切り換える第１の電磁弁と、前記クローザに空気圧を付与する第２の電磁弁とを備え、手動操作により大気開放可能な第１の非常開放弁を前記第１の電磁弁の一次側に接続し、手動操作により大気開放可能な第２の非常開放弁を前記第２の電磁弁の一次側に接続し、第１、第２の非常開放弁の一次側をそれぞれ別個の逆止弁を介して空気圧供給元管に接続したことを特徴とするドア開閉機構。   The door engine that opens and closes the door when air pressure is applied, the closer that restrains the door that is closed when the air pressure is applied, and the direction of air pressure applied to the door engine are switched. A first solenoid valve and a second solenoid valve that applies air pressure to the closer, and a first emergency release valve that can be opened to the atmosphere by manual operation is connected to a primary side of the first solenoid valve; A second emergency release valve that can be opened to the atmosphere by manual operation is connected to the primary side of the second electromagnetic valve, and the primary sides of the first and second emergency release valves are each pneumatically connected via separate check valves. A door opening / closing mechanism connected to a supply pipe. 第１、第２の非常開放弁の双方が一回の動作で大気開放状態になり得るように構成した請求項１に記載のドア開閉機構。   The door opening / closing mechanism according to claim 1, wherein both the first and second emergency opening valves are configured to be open to the atmosphere by one operation. 第１、第２の非常開放弁の切換可動部分を相互に連結し且つ当該部分を同時に動かせる操作部材を設けた請求項１に記載のドア開閉機構。   2. The door opening / closing mechanism according to claim 1, further comprising an operation member that connects the switching movable parts of the first and second emergency release valves to each other and simultaneously moves the parts.
JP2006050018A 2006-02-27 2006-02-27 Door opening / closing mechanism Active JP4866101B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07317428A (en) * 1994-05-20 1995-12-05 Aisin Seiki Co Ltd Door opening/closing device
JPH09175276A (en) * 1995-12-27 1997-07-08 Taihei Denki Kk Movable step for vehicle
JPH11223069A (en) * 1998-02-06 1999-08-17 Nabco Ltd Closing device for vehicle door
JP2003074509A (en) * 2001-08-31 2003-03-12 Hino Motors Ltd Air passage for door opening and shutting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07317428A (en) * 1994-05-20 1995-12-05 Aisin Seiki Co Ltd Door opening/closing device
JPH09175276A (en) * 1995-12-27 1997-07-08 Taihei Denki Kk Movable step for vehicle
JPH11223069A (en) * 1998-02-06 1999-08-17 Nabco Ltd Closing device for vehicle door
JP2003074509A (en) * 2001-08-31 2003-03-12 Hino Motors Ltd Air passage for door opening and shutting

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