JP2009167768A

JP2009167768A - Self-closable sliding door device

Info

Publication number: JP2009167768A
Application number: JP2008010338A
Authority: JP
Inventors: Mitsuaki Shoji; 光昭庄司
Original assignee: Best Co Ltd
Current assignee: Best Co Ltd
Priority date: 2008-01-21
Filing date: 2008-01-21
Publication date: 2009-07-30
Anticipated expiration: 2028-01-21
Also published as: JP4755208B2

Abstract

<P>PROBLEM TO BE SOLVED: To secure safety such as the prevention of finger nipping by maximally widely adopting an opening in full opening, while improving an outward appearance by displaying a use state such as a toilet in an external part, without attaching a display unit to the outside of a sliding door. <P>SOLUTION: In this self-closable sliding door device 1, a braking means of the sliding door D is installed on the door end side and the door tail side in the length direction of a sliding door rail L. The braking means has a cylinder sealed with a viscous liquid such as oil O, a piston 43 linearly reciprocatably arranged in the cylinder, and a piston rod 44 fixing the piston 43 to the base end and fixing a stopper 52 for receiving the sliding door to the end 43a by projecting a distal end side shaft part 44b from the inside of the cylinder, and is constituted of hydraulic dampers 40 and 45 for generating braking force by viscous resistance of the viscous liquid when the piston is pushed when the sliding door strikes on the stopper. A return spring 46 is interposed between the cylinder and the piston rod, for pushing back the piston rod when elastic resiliency operates when the piston is pushed when the sliding door strikes on the stopper. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、トイレブース内などで、引戸を開閉方向に往復移動自在に上吊りし、この上吊り引戸を、開方向へ手で引いて開位置に移動させて後、閉時に手を離すと開位置から引戸レールの案内で閉方向へ自動的に移動させる自閉式引戸装置に関する。 The present invention suspends the sliding door in a toilet booth or the like so as to be reciprocally movable in the opening and closing direction, pulls the upper sliding door by hand in the opening direction and moves it to the open position, and then releases the hand when closing. The present invention relates to a self-closing type sliding door device that is automatically moved in the closing direction by guidance of a sliding door rail from an open position.

一般に、各種の引戸の中でも、この種の上吊り引戸は、車椅子を利用する身障者や要介護者にとっても、開閉操作が容易で、しかも、構造上、床側に敷居やレールなどを設置する必要がなく床面に段差を発生させないために、バリアフリーの要請に応えることができ、最近では、例えばトイレブース内の引戸としても、その需要が一段と高まっている。 In general, among various types of sliding doors, this type of sliding sliding door is easy to open and close even for people with disabilities and care recipients who use wheelchairs, and because of the structure, it is necessary to install a sill or rail on the floor side. Therefore, it is possible to meet the demand for barrier-free, so that the demand for sliding doors in toilet booths is increasing more recently.

そこで、従来、トイレブース内にも、例えば図１８に示すように、上吊り引戸を開閉する自閉式引戸装置１を備え、引戸レール２に戸車３ａを係合させて引戸３を往復移動自在に上吊りし、この上吊り引戸３を、開時は取手のハンドル３ｂを持ち、開方向ａへ引いて開位置に移動させて後、閉時にハンドル３ｂから手を離すと、自閉手段４が働き、ワイヤー５で引っ張って開位置から引戸レール２の案内で閉方向ｂへ自動的に移動させて開口部を閉止する構造になっている。なお、従来の自閉式引戸装置１では、トイレの内側から引戸３を全開させるとき、ハンドル３ｂが戸袋壁６に急接近し、それらの間に指などを挟んで怪我をしないように、図中仮想線で示すとおり、ハンドル３ｂが戸袋壁６から離れて安全な開位置で、引戸３を戸当り６ａに当てて止めるようになっている。 Therefore, conventionally, as shown in FIG. 18, for example, a self-closing type sliding door device 1 that opens and closes the upper sliding door is provided in the toilet booth, and the sliding door 3 can be reciprocated by engaging the door 3a with the sliding door rail 2. When the upper sliding door 3 is opened, it has a handle 3b of the handle when it is opened, is pulled in the opening direction a and moved to the open position, and then is released from the handle 3b when it is closed. It is structured to pull the wire 5 and automatically move it from the open position to the closing direction b by the guide of the sliding door rail 2 to close the opening. In the conventional self-closing sliding door device 1, when the sliding door 3 is fully opened from the inside of the toilet, the handle 3 b suddenly approaches the door pocket wall 6, and a finger or the like is sandwiched between them to prevent injury. As shown by the phantom line, the handle 3b is separated from the door pocket wall 6 and stopped at the safe open position by hitting the sliding door 3 against the door stop 6a.

自閉手段４は、例えば、ワイヤー５を外周のプーリ部に巻装したワイヤーリール７を枢軸で回転自在に軸支し、ワイヤーリール７には、プーリ部に内装した渦巻バネ（ゼンマイ）の一端を枢軸に、他端をプーリ部に掛け止めてワイヤー５を常時巻き取る方向へ回転付勢力を付与すると共に、同軸上に駆動回転ギヤを連結し、駆動回転ギヤにロータリーダンパ８の従動回転ギヤ８ａを噛み合わせて装置本体を構成し、装置本体を、例えば壁パネル９に組み付ける一方、ワイヤー５を、ワイヤーリール７から引き出して先端を引戸３側に掛け止めた構造になっている（特許文献１を参照）。 The self-closing means 4 supports, for example, a wire reel 7 in which a wire 5 is wound around an outer pulley part so as to be rotatable about a pivot, and the wire reel 7 has one end of a spiral spring (spring) housed in the pulley part. And the other end is hooked to the pulley portion to apply a rotational biasing force in a direction in which the wire 5 is always taken up, and a drive rotation gear is connected coaxially, and the driven rotation gear of the rotary damper 8 is connected to the drive rotation gear. The apparatus main body is configured by meshing 8a, and the apparatus main body is assembled to the wall panel 9, for example, while the wire 5 is pulled out from the wire reel 7 and the tip is hooked on the sliding door 3 side (Patent Document). 1).

従って、従来の自閉式引戸装置１では、例えばトイレの使用時、ハンドル３ｂを手で持って開方向ａへ引戸３を引くと、渦巻バネに抗してワイヤー５が繰り出され、引戸３が開位置へ移動して後、その開く途中でハンドル３ｂから手を離すと、渦巻バネの回転付勢力でワイヤー５を巻き取り、開位置から引戸３を閉方向ｂへ引っ張って閉位置へ自動的に移動させて開口部を閉止する。また、この自閉時、ワイヤー５を巻き取る方向の回転が駆動回転ギヤと従動回転ギヤ８ａの噛み合いを介してロータリーダンパ８内のロータに伝達されると、ロータリーダンパ８に制動トルクを発生し、ワイヤーリール７がブレーキの利いた負荷状態で回転し、それに従って、引戸３は減速しながら、ゆっくりと自閉する。そして、全閉すると、引戸３の内側から、例えば打掛錠の回動レバーを回して引戸３を施錠する。すると、引戸３の外側では、回動レバーの回転動作と連動して表示器ｃが作動し、引戸３の施錠状態、即ちトイレの使用状態を外部に表示している。
特開２０００−１３０００４号公報 Therefore, in the conventional self-closing sliding door device 1, when the toilet 3 is used, for example, when the sliding door 3 is pulled in the opening direction a by holding the handle 3b by hand, the wire 5 is fed out against the spiral spring and the sliding door 3 is opened. After moving to the position, if the hand is released from the handle 3b in the middle of its opening, the wire 5 is wound up by the rotational biasing force of the spiral spring, and the sliding door 3 is pulled in the closing direction b from the open position to automatically move to the closed position. Move to close the opening. Further, when the rotation in the direction in which the wire 5 is wound is transmitted to the rotor in the rotary damper 8 through the meshing of the drive rotation gear and the driven rotation gear 8a during the self-closing, a braking torque is generated in the rotary damper 8. The wire reel 7 rotates under a load with a brake applied, and the sliding door 3 slowly closes itself while decelerating accordingly. When fully closed, the sliding door 3 is locked from the inside of the sliding door 3 by, for example, turning a locking lever. Then, on the outside of the sliding door 3, the indicator c is operated in conjunction with the rotation operation of the rotation lever, and the locked state of the sliding door 3, that is, the use state of the toilet is displayed outside.
JP 2000-130004 A

ところが、従来の自閉式引戸装置１では、引戸３の全開時に、ハンドル３ｂが戸袋壁６に接近し、それらの間に指などを挟んで怪我をしないように、ハンドル３ｂが戸袋壁６から離れた開位置で、引戸３を戸当り６ａに当てて止める構造であるため、ハンドル３ｂが戸袋壁６から離す分だけ開口部の開口面積が狭くなり、それだけ全開時に広く開口を採れないという課題がある。 However, in the conventional self-closing type sliding door device 1, when the sliding door 3 is fully opened, the handle 3b approaches the door pocket wall 6 and the handle 3b is separated from the door pocket wall 6 so as not to be injured with a finger or the like between them. In the open position, the sliding door 3 is configured to stop against the door 6a, so that the opening area of the opening is reduced by the amount the handle 3b is separated from the door pocket wall 6, and the problem that the opening cannot be widened when fully opened is the problem. is there.

しかも、従来の自閉式引戸装置１では、引戸３の外側に、その板面から表示器ｃが突出し、この出っ張りが目だって見栄えが悪く、美的外観の重視されるトイレブース等では好ましくないという課題があった。 Moreover, in the conventional self-closing sliding door device 1, the display device c protrudes from the plate surface outside the sliding door 3, and this protrusion is not good in appearance, which is not preferable in a toilet booth where the aesthetic appearance is important. was there.

そこで、本発明の目的は、引戸の外側に表示器を付設しないで、トイレ等の使用状態を外部に表示して見栄えを良好にし、全開時に開口を最大限広く採って指詰め防止などの安全を確保し得る自閉式引戸装置を提供することにある。 Therefore, the object of the present invention is to provide a good appearance by displaying the use condition of the toilet etc. outside without providing a display on the outside of the sliding door. It is providing the self-closing type sliding door apparatus which can ensure.

上記した発明の目的を達成すべく、請求項１に記載の発明は、たとえば以下に示す図示実施の形態のとおり、引戸Ｄの上端部１３に搭載した戸車２０・２１を引戸レールＬに係合させて前記引戸Ｄを開閉方向Ｘ・Ｙに往復移動自在に上吊りし、該上吊り引戸Ｄを、開方向Ｘに手で引いて開位置に移動させて後、閉時に手を離すと開位置から前記引戸レールＬの案内で閉方向Ｙへ自動的に移動させる自閉式引戸装置Ａにおいて、前記引戸レールＬの長さ方向戸先側および戸尻側の双方又はいずれか一方の側に、前記引戸Ｄの制動手段を取り付け、該制動手段は、粘性液体を封入したシリンダと、該シリンダ内に直線往復移動可能に配設したピストン４３と、該ピストン４３を基端に固着する一方、先端側軸部４４ｂを前記シリンダ内から突出させて先端４４ａに前記引戸Ｄを受け止めるストッパ５２を固着したピストンロッド４４とを備え、該ストッパ５２に前記引戸Ｄが当って前記ピストン４３が押されると、前記粘性液体の粘性抵抗によって制動力を発生するダンパで構成し、前記シリンダと前記ピストンロッド４４間に、前記引戸Ｄが前記ストッパ５２に当って前記ピストン４３が押されると、弾性反発力が働いて前記ピストンロッド４４を押し戻す復帰ばね５６を介装してなることを特徴とする。 In order to achieve the object of the invention described above, the invention according to claim 1 is engaged with the sliding door rail L by the door pulleys 20 and 21 mounted on the upper end portion 13 of the sliding door D, for example, as shown in the embodiment shown below. The sliding door D is lifted up and down in the opening and closing directions X and Y so that the sliding door D can be moved to the open position by pulling in the opening direction X by hand. In the self-closing type sliding door device A that automatically moves in the closing direction Y by the guidance of the sliding door rail L from the position, on the sliding door rail L in the length direction door end side and the door bottom side, or on either side, The brake means of the sliding door D is attached, and the brake means includes a cylinder filled with a viscous liquid, a piston 43 disposed in the cylinder so as to be capable of linear reciprocation, and the piston 43 is fixed to the base end, while the distal end The side shaft portion 44b protrudes from the cylinder. And a piston rod 44 fixed with a stopper 52 for receiving the sliding door D at the tip 44a. When the sliding door D hits the stopper 52 and the piston 43 is pushed, a braking force is generated by the viscous resistance of the viscous liquid. When the sliding door D hits the stopper 52 and the piston 43 is pushed between the cylinder and the piston rod 44, an elastic repulsive force acts to push back the piston rod 44 between the cylinder and the piston rod 44. It is characterized by interposing.

請求項２に記載の発明は、請求項１に記載の自閉式引戸装置Ａにおいて、たとえば以下に示す図示実施の形態のとおり、前記制動手段は、前記粘性液体がオイルＯからなる油圧ダンパ４０・４５であって、前記シリンダを、入口開口５０を外蓋４９で閉止するアウターシリンダ４１と、該アウターシリンダ４１内に間に前記オイルＯの還流路ｒをあけて挿設するインナーシリンダ４２とで形成し、該インナーシリンダ４２内に前記ピストン４３を配設し、前記復帰ばね４６を圧縮コイルばねで形成し、該圧縮コイルばねを前記ピストンロッド４４に巻装し、該ピストンロッド４４を中心の軸挿通穴５７に貫挿させて前記アウターシリンダ４１内に直線往復動可能に嵌合し、該アウターシリンダ４１内を油圧室Ｒ１と非油圧室Ｒ２とに区画し、前記外蓋４９との間の非油圧室Ｒ２で前記圧縮コイルばねを挟持する可動弁４７を配設してなることを特徴とする。 According to a second aspect of the present invention, in the self-closing sliding door device A according to the first aspect of the present invention, the brake means includes a hydraulic damper 40. 45, an outer cylinder 41 that closes the inlet opening 50 with an outer lid 49, and an inner cylinder 42 that is inserted in the outer cylinder 41 with a return path r for the oil O interposed therebetween. The piston 43 is disposed in the inner cylinder 42, the return spring 46 is formed by a compression coil spring, the compression coil spring is wound around the piston rod 44, and the piston rod 44 is centered. It is inserted into the shaft insertion hole 57 and fitted into the outer cylinder 41 so as to be able to reciprocate linearly, and the outer cylinder 41 is partitioned into a hydraulic chamber R1 and a non-hydraulic chamber R2. Characterized in that a non-hydraulic pressure chamber R2 between the Kigaifuta 49 formed by arranging the movable valve 47 to sandwich the compression coil spring.

請求項３に記載の発明は、請求項２に記載の自閉式引戸装置Ａにおいて、たとえば以下に示す図示実施の形態のとおり、前記アウターシリンダ４１と前記インナーシリンダ４２間には、前記ピストン４３が押されると、前記インナーシリンダ４２内からオリフィス５９を通って前記還流路ｒへ流動する前記オイルＯの動圧を調整する圧力調整弁４８を配設してなることを特徴とする。 According to a third aspect of the present invention, in the self-closing sliding door device A according to the second aspect, the piston 43 is interposed between the outer cylinder 41 and the inner cylinder 42 as shown in the illustrated embodiment, for example. A pressure adjusting valve 48 for adjusting the dynamic pressure of the oil O that flows to the reflux path r from the inner cylinder 42 through the orifice 59 when the pressure is pushed is provided.

請求項１に記載の発明によれば、（１）閉時は、バーハンドル等の取手から手を離すと、引戸を開位置から閉方向へ自動的に移動させて後、全閉位置の手前で、引戸が戸先側の制動手段のストッパに当って、いったん受け止められる。すると、制動手段は、ストッパが引戸に押されて、ピストンがシリンダ内深く徐々に押し込まれるが、そのときに、粘性液体の粘性抵抗により制動力を発生し、引戸はブレーキの利いた負荷状態で減速しながら、指詰めなどの怪我をしないように、ゆっくり閉方向へ移動して開口部を全閉するが、このとき同時に、制動手段では、引戸がストッパに当ってピストンが押されると、復帰ばねの弾性反発力が働いて、この弾性反発力でピストンを押し戻し、ピストンロッドをシリンダ内から突出させてストッパを引戸受止位置に押し戻し、引戸を半開き状態で受け止める。これによって、例えば引戸がトイレ用引戸の場合、いまトイレが未使用状態であることを表示し、即ち、美的外観の重視されるトイレブース等でも、引戸の外側に表示器を付設しないで、トイレ等の使用状態を外部に表示して見栄えを一段と良好にすることができる。（２）他方、開時は、引戸を手で引いて開方向へ移動すると、全開位置の手前で、引戸が戸尻側の制動手段のストッパに当って、いったん受け止められる。すると、制動手段は、ストッパが引戸に押されて、ピストンがシリンダ内深く徐々に押し込まれるが、そのときに、粘性液体の粘性抵抗により制動力を発生し、引戸は、ブレーキの利いた負荷状態で減速しながら、ゆっくり閉方向へ移動し、戸尻側の戸袋壁等との間に指などを挟んで怪我をすることを防止することができる。しかも、開口部を全開させるには、そのまま引戸を粘性液体の粘性抵抗に抗して全開位置までいっぱいに押し引けばよく、これによって、従来の如く、全開時に指詰め事故などを防止するために取手を戸袋壁等から離れた開位置で引戸を止める構造にする必要がなく、それだけ全開時に開口部の開口を最大限広く採ることができる。しかも、（３）引戸を全開させて後、引戸から手を離すと、引戸は、全開位置から閉方向へ自動的に移動するが、同時に、制動手段では、ピストンの押圧が解除され、すると復帰ばねの弾性反発力が働いて、この弾性反発力でピストンを押し戻してストッパを元の引戸受止位置に戻し、待機状態に置くことができ、これによって、指詰め事故などを防止して安全に引戸を全開させて後でも、その都度、ストッパを元の引戸受止位置に自動的に復帰させることができる。 According to the first aspect of the present invention, (1) when closed, when the hand is released from the handle such as the bar handle, the sliding door is automatically moved from the open position to the closing direction, and then before the fully closed position. Then, the sliding door hits the stopper of the braking means on the door end side and is received once. Then, the stopper is pushed by the sliding door and the piston is gradually pushed deeply into the cylinder. At that time, the braking force is generated by the viscous resistance of the viscous liquid, and the sliding door is in a load state where the brake is applied. While decelerating, it moves slowly in the closing direction so as not to injure fingers or other injuries, and the opening is fully closed. At the same time, the braking means returns when the sliding door hits the stopper and the piston is pushed. The elastic repulsive force of the spring acts, and the piston is pushed back by this elastic repulsive force, the piston rod is protruded from the cylinder, the stopper is pushed back to the sliding door receiving position, and the sliding door is received in a half-open state. Thus, for example, when the sliding door is a toilet sliding door, it is displayed that the toilet is not in use. That is, even in a toilet booth where the aesthetic appearance is important, a toilet is not provided outside the sliding door. Etc. can be displayed on the outside to further improve the appearance. (2) On the other hand, when the sliding door is opened, when the sliding door is pulled by hand and moved in the opening direction, the sliding door hits the stopper of the braking means on the door bottom side and is received once before the fully opened position. Then, the braking means, the stopper is pushed by the sliding door, and the piston is gradually pushed deeply into the cylinder. At that time, the braking force is generated by the viscous resistance of the viscous liquid, While decelerating, it moves slowly in the closing direction, and it is possible to prevent injury by pinching a finger or the like with the door pocket wall or the like on the door bottom side. Moreover, in order to fully open the opening, it is only necessary to push the sliding door fully to the fully open position against the viscous resistance of the viscous liquid. It is not necessary to make the handle a structure that stops the sliding door at an open position away from the door pocket wall or the like, and the opening of the opening can be taken as wide as possible when fully opened. In addition, (3) when the sliding door is fully opened and then released from the sliding door, the sliding door automatically moves in the closing direction from the fully open position. At the same time, the brake means releases the piston pressure and returns. The elastic repulsive force of the spring works, and the elastic repulsive force pushes the piston back to return the stopper to the original sliding door receiving position and puts it in a standby state. Even after the sliding door is fully opened, the stopper can be automatically returned to the original sliding door receiving position each time.

請求項２に記載の発明によれば、粘性液体のオイルの粘性抵抗を利用して制動力を発生させることができると共に、同じオイルを還流路に流動させ、該オイルの動圧を利用して復帰ばねの弾性反発力を作用させ、この弾性反発力でストッパを効率よく引戸受止位置に押し戻すことができる。 According to the second aspect of the present invention, the braking force can be generated by utilizing the viscous resistance of the viscous liquid oil, and the same oil is caused to flow through the reflux path, and the dynamic pressure of the oil is utilized. The elastic repulsive force of the return spring is applied, and the stopper can be efficiently pushed back to the sliding door receiving position by this elastic repulsive force.

請求項３に記載の発明によれば、圧力調整弁によってインナーシリンダ内からオリフィスを通って還流路へ流動するオイルの動圧を調整することができる。 According to the third aspect of the invention, the dynamic pressure of the oil flowing from the inner cylinder through the orifice to the reflux path can be adjusted by the pressure adjusting valve.

以下、図面を参照しつつ、本発明の実施の最良形態について説明する。 Hereinafter, the best mode of the present invention will be described with reference to the drawings.

図１は、本発明の一例である自閉式引戸装置を適用した引戸構造体を示す分解斜視図、図２は、引戸構造体を、引戸の全閉直前状態において示す組立斜視図である。図示例の引戸構造体は、トイレブース内に設置したトイレ用引戸の構造体で、図中左右の袖パネルＰ１・Ｐ２と、引戸Ｄと、戸車２０・２１を係合させて引戸Ｄを開閉方向Ｘ・Ｙに案内する引戸レールＬとを備える。袖パネルＰ１・Ｐ２は、開口部Ｓを間にあけて左右面一に立設した壁状パネルからなるが、戸尻側の袖パネルＰ２には、トイレに対し外側板面の下部寄りに、開閉時に引戸Ｄの横振れを防止するローラ状のガイド突起１０を付設し、ガイド突起１０の戸尻寄りには、戸当り１１が付設されている。そして、両袖パネルＰ１・Ｐ２上に断面コ形の笠木１２を懸架して固着し、笠木１２で両袖パネルＰ１・Ｐ２を面一状態で連結している。 FIG. 1 is an exploded perspective view showing a sliding door structure to which a self-closing type sliding door device as an example of the present invention is applied, and FIG. 2 is an assembled perspective view showing the sliding door structure immediately before the sliding door is fully closed. The sliding door structure in the illustrated example is a toilet sliding door structure installed in a toilet booth. The sliding door D is opened and closed by engaging the left and right sleeve panels P1 and P2, the sliding door D, and the door wheel 20 and 21 in the figure. And a sliding door rail L for guiding in the directions X and Y. The sleeve panels P1 and P2 are made of wall-like panels that are erected on the left and right sides with the opening S in between. The sleeve panel P2 on the door bottom side is closer to the lower part of the outer plate surface with respect to the toilet. A roller-shaped guide projection 10 is attached to prevent the sliding door D from sideways when opening and closing, and a door stop 11 is provided near the door bottom of the guide projection 10. Then, the cross-shaped headboard 12 is suspended and fixed on the two-sleeve panels P1 and P2, and the two-sleeve panels P1 and P2 are connected by the headboard 12 in a flush state.

図示例の引戸Ｄは木製で、大小開口面積の異なる一般の開口部を開閉できるように比較的大きな矩形パネル状をなし、上端面１３の戸先寄りと戸尻寄りに、それぞれ戸車ユニット１４・１５を嵌め込む細長い取付凹部１６・１７が設けられている。戸車ユニット１４・１５は、それぞれ溝形ブラケット１８・１９上に、戸車２０・２１を搭載して転動自在に枢支すると共に、戸車２０・２１の手前にＴ型の突当て板２２・２３を立設している。一方の戸車ユニット１４は、突当て板２２を戸先側に向け、溝形ブラケット１８を介して取付凹部１６内に嵌着し、他方の戸車ユニット１５は、突当て板２３を戸尻側に向け、溝形ブラケット１９を介して取付凹部１７内に嵌着している。更に、上端面１３の取付凹部１６・１７間には、後述の重りユニット３０を案内するガイド穴２４を下向きに穿設し、細長く扁平な中空部を形成している。一方、下端面には、長さ方向にガイド溝２５を凹設し、ガイド溝２５に、溝形状に合わせて断面コ形をなす細長い補強部材２５ａを嵌め込んで補強している。なお、引戸Ｄには、戸先側木口近くで、トイレに対し内側板面に引手ｈ１を、外側板面にバーハンドルｈ２をそれぞれ縦向きに付設してなる。 The sliding door D in the illustrated example is made of wood and has a relatively large rectangular panel shape so as to be able to open and close a general opening having a different large and small opening area. Elongated mounting recesses 16 and 17 into which 15 is fitted are provided. The door units 14 and 15 are mounted on the groove brackets 18 and 19 with the door wheels 20 and 21, respectively, and are pivotally supported so that they can roll, and T-shaped abutting plates 22 and 23 are placed in front of the door wheels 20 and 21, respectively. Is standing. One door pulley unit 14 has the abutting plate 22 facing the door end side and is fitted into the mounting recess 16 via the groove bracket 18, and the other door pulley unit 15 has the abutting plate 23 facing the door bottom side. And is fitted into the mounting recess 17 via the channel bracket 19. Further, a guide hole 24 for guiding a weight unit 30 to be described later is formed downward between the mounting recesses 16 and 17 of the upper end surface 13 to form an elongated and flat hollow portion. On the other hand, a guide groove 25 is recessed in the length direction on the lower end surface, and a long and narrow reinforcing member 25a having a U-shaped cross section is fitted into the guide groove 25 in accordance with the groove shape for reinforcement. Note that the sliding door D is provided with a handle h1 on the inner plate surface and a bar handle h2 on the outer plate surface in the vertical direction near the door end side mouth.

引戸レールＬは、金属製で、長さ方向に逃げ溝２６をあけた溝形のパイプ状をなし、逃げ溝２６の両側に、戸車２０・２１を係合させる断面Ｌ状のガイドリブ２７ａを対称に凸設したガイドレール部２７と、袖パネルＰ１・Ｐ２上に固定した笠木１２に取り付ける鍔状の笠木取付部２８とを一体に成形してなる。 The sliding door rail L is made of metal and has a groove-like pipe shape with a clearance groove 26 in the length direction, and symmetrical L-shaped guide ribs 27a for engaging the door pulleys 20 and 21 on both sides of the clearance groove 26. A guide rail portion 27 projecting from the base plate and a hook-shaped head portion attaching portion 28 attached to the head portion 12 fixed on the sleeve panels P1 and P2 are integrally formed.

そこで、図示引戸構造体では、例えば既設の開き戸を取り外してから、笠木１２に笠木取付部２８をねじ止めし、ガイドレール部２７を開口部Ｓの奥行方向外側へ張り出させた状態で、引戸レールＬを笠木１２上に固定する。それから、ガイドレール部２７のガイドリブ２７ａ間に戸車２０・２１を係合させて、引戸Ｄを引戸レールＬに往復移動自在に上吊りし、これにより、袖パネルＰ１・Ｐ２間に、回転開閉式の開き戸に代え、スライド開閉式の引戸Ｄを、開口部Ｓの奥行方向外側に重ねて付け替えるアウトセット構造になっている。 Therefore, in the illustrated sliding door structure, for example, after removing the existing hinged door, the hinge mounting portion 28 is screwed to the crown 12, and the guide rail 27 is projected outward in the depth direction of the opening S. The rail L is fixed on the headboard 12. Then, the door pulleys 20 and 21 are engaged between the guide ribs 27a of the guide rail portion 27, and the sliding door D is suspended from the sliding door rail L so as to be reciprocally movable. Thus, a rotary opening and closing type is provided between the sleeve panels P1 and P2. Instead of the hinged door, an outset structure is provided in which a sliding door D that slides open and close is overlapped on the outer side in the depth direction of the opening S.

さて、上述した引戸構造体では、引手ｈ１又はバーハンドルｈ２を持って、引戸Ｄを開方向Ｘへ引いて開位置へ移動させて後、手を離すと本発明による自閉式引戸装置Ａが作動し、引戸Ｄを、開位置から引戸レールＬの案内で閉方向Ｙへ自動的に移動させて開口部Ｓを閉止するようになっている。 In the sliding door structure described above, the self-closing type sliding door device A according to the present invention operates when the sliding door D is held in the opening direction X by holding the pulling handle h1 or the bar handle h2 and then moved to the open position. Then, the sliding door D is automatically moved in the closing direction Y by the guidance of the sliding door rail L from the open position to close the opening S.

そこで、自閉式引戸装置Ａは、ワイヤー２９の弛みを取る重りユニット３０と、重りユニット３０の弛み取り動作を案内する重りガイド部材３５と、引戸Ｄの移動速度を減速する制動手段たる一対の油圧ダンパ４０・４５を備えた構成になっている。 Therefore, the self-closing sliding door device A has a pair of hydraulic pressures as a weight unit 30 that takes the slack of the wire 29, a weight guide member 35 that guides the slack removal operation of the weight unit 30, and a braking means that reduces the moving speed of the sliding door D. The dampers 40 and 45 are provided.

重りユニット３０は、図３でも示すように、ゼンマイケース３１と、ワイヤー２９を巻装するワイヤーリール３２と、ワイヤーリール３２を回転付勢する渦巻バネ（ゼンマイ）３３を備える。 As shown in FIG. 3, the weight unit 30 includes a mainspring case 31, a wire reel 32 around which the wire 29 is wound, and a spiral spring (spring) 33 that urges the wire reel 32 to rotate.

ゼンマイケース３１は、扁平な略矩形状の収納ケース部３１ａと、収納ケース部３１ａの一端の片側寄りから突出する滑車支持板部３１ｂを有してなる。収納ケース部３１ａには、左右の側板面に長さ方向に沿って細長いガイド溝３１ｃを設けてなる。滑車支持板部３１ｂは、滑車３４を間に挟んで回転自在に枢支している。 The mainspring case 31 includes a flat, substantially rectangular storage case portion 31a, and a pulley support plate portion 31b protruding from one side of one end of the storage case portion 31a. The storage case portion 31a is provided with elongated guide grooves 31c along the length direction on the left and right side plate surfaces. The pulley support plate portion 31b is rotatably supported with the pulley 34 interposed therebetween.

ワイヤーリール３２は、ゼンマイケース３１の収納ケース部３１ａ内で、リング状プーリ部の外周にワイヤー２９を巻装する一方、プーリ部内に渦巻バネ３３を内装している。そして、ワイヤー２９の先端側をプーリ部から繰り出し、更に滑車３４に巻き回して外部に引き出している。一方、渦巻バネ３３は、ばね一端を枢軸３６に、他端をワイヤーリール３２に掛け止め、ワイヤーリール３２にワイヤー２９を常時巻き取る方向へ回転する付勢力を付与している。 The wire reel 32 winds the wire 29 around the outer periphery of the ring-shaped pulley portion in the storage case portion 31a of the mainspring case 31, and includes a spiral spring 33 inside the pulley portion. And the front end side of the wire 29 is let out from the pulley part, and is further wound around the pulley 34 and pulled out to the outside. On the other hand, the spiral spring 33 holds one end of the spring on the pivot 36 and the other end on the wire reel 32, and gives the wire reel 32 a biasing force that rotates in the direction of winding the wire 29 at all times.

重りガイド部材３５は、重りユニット３０の外形状に合わせて、金属板を折り曲げて図３中前面側を開放し、上端面側に開口３７を開けた全体に細長い扁平箱形に形成する。両側板面には、その側縁部に、ゼンマイケース３１の左右ガイド溝３１ｃに対応させて、直角に曲げて互いに向き合う鍔状のガイド板片３５ａを形成し、更に両側板面の上縁部には、互いに外向きに曲げ開いて取付板片３５ｂを形成すると共に、開口３７の内縁に、図示しない抜止め部を内向きに凸設してなる。そこで、自閉式引戸装置Ａでは、滑車３４を開口３７側に向けた状態で、ガイド板片３５ａをゼンマイケース３１のガイド溝３１ｃに係合させて、重りガイド部材３５に対し重りユニット３０をスライド自在に装着し、自閉手段Ｂとして組み立ててなる。なお、重りユニット３０は、重量を調整し、重りユニット３０に働く重力が渦巻バネ３３のワイヤー２９を巻き取る回転付勢力より小さくなるように設定してある。そして、自閉手段Ｂは、引戸Ｄのガイド穴２４内に挿入し、重りガイド部材３５の取付板片３５ｂを上端面１３にねじ止めして引戸Ｄに組み込んでなる。 The weight guide member 35 is formed in a flat box shape that is elongated in the whole shape by bending the metal plate in accordance with the outer shape of the weight unit 30 to open the front surface side in FIG. 3 and opening the opening 37 on the upper end surface side. On both side plate surfaces, hook-shaped guide plate pieces 35a that are bent at right angles and face each other are formed on the side edge portions so as to correspond to the left and right guide grooves 31c of the mainspring case 31, and the upper edge portions of both side plate surfaces Are formed by bending outwardly to form the mounting plate piece 35b, and a retaining portion (not shown) is provided inwardly on the inner edge of the opening 37. Therefore, in the self-closing sliding door apparatus A, the guide plate piece 35a is engaged with the guide groove 31c of the mainspring case 31 with the pulley 34 facing the opening 37, and the weight unit 30 is slid with respect to the weight guide member 35. Freely mounted and assembled as a self-closing means B. The weight unit 30 is adjusted in weight so that the gravity acting on the weight unit 30 is smaller than the rotational urging force for winding the wire 29 of the spiral spring 33. Then, the self-closing means B is inserted into the guide hole 24 of the sliding door D, and the mounting plate piece 35b of the weight guide member 35 is screwed to the upper end surface 13 and incorporated into the sliding door D.

油圧ダンパ４０・４５は、図１に示すように、それぞれダンパ取付ケース６０・６１内に組み込んでから、引戸レールＬのガイドレール部１７内の長さ方向戸先側および戸尻側に、各ダンパ取付ケース６０・６１を介して取り付ける。ダンパ取付ケース６０・６１は、樹脂製で、ガイドレール部１７内に挿入できるように、外形をガイドレール部１７の断面形状に合わせて成形している。 As shown in FIG. 1, the hydraulic dampers 40 and 45 are assembled in the damper mounting cases 60 and 61, respectively, and then are installed on the door end side and the door bottom side in the longitudinal direction in the guide rail portion 17 of the sliding door rail L. It attaches via damper attachment cases 60 and 61. The damper mounting cases 60 and 61 are made of resin, and have an outer shape that matches the cross-sectional shape of the guide rail portion 17 so that they can be inserted into the guide rail portion 17.

油圧ダンパ４０・４５は、図４および図５に示すように、それぞれアウターシリンダ４１と、インナーシリンダ４２と、ピストン４３と、ピストンロッド４４と、ストッパ５２と、圧縮コイルばねからなる復帰ばね４６と、可動弁４７と、圧力調整弁４８とを備える。 As shown in FIGS. 4 and 5, the hydraulic dampers 40 and 45 are respectively an outer cylinder 41, an inner cylinder 42, a piston 43, a piston rod 44, a stopper 52, and a return spring 46 composed of a compression coil spring. The movable valve 47 and the pressure adjusting valve 48 are provided.

アウターシリンダ４１は、樹脂製で、一端部に扁平キャップ状の外蓋４９を嵌め込んで閉止する入口開口５０を設け、他端部に圧力調整弁４８を組み込む一段小径な弁取付口５１を設けて、全体に長尺な円筒状に成形してなる。一方、インナーシリンダ４２は、アウターシリンダ４１より一段細径で、それより短尺な金属製パイプからなる。 The outer cylinder 41 is made of resin, and is provided with an inlet opening 50 for fitting and closing a flat cap-shaped outer lid 49 at one end, and a one-stage small-diameter valve mounting port 51 for incorporating a pressure adjustment valve 48 at the other end. And formed into a long cylindrical shape as a whole. On the other hand, the inner cylinder 42 is made of a metal pipe that is one step narrower than the outer cylinder 41 and shorter than that.

ピストン４３は、樹脂製で、インナーシリンダ４２の口径に合わせた大きさで、肉厚な円盤状に形成し、ピストンロッド４４の基端に固着してなる。ピストンロッド４４は、先端に雄ねじ４４ａを螺設したステンレス製の棒体で、先端にストッパ５２を取り付ける。ストッパ５２は、引戸レールＬの対称なガイドリブ２７ａに合わせて、それらと係合可能な凹凸形状の係合段部５３ａを設けた樹脂製受止め板５３と、それぞれ金属製の矩形な取付板片５４およびキャップ状の板押え５５を備えてなる。 The piston 43 is made of resin, has a size that matches the diameter of the inner cylinder 42, is formed in a thick disk shape, and is fixed to the proximal end of the piston rod 44. The piston rod 44 is a stainless steel rod having a male screw 44a screwed at the tip, and a stopper 52 is attached to the tip. The stopper 52 includes a resin receiving plate 53 provided with concave and convex engaging step portions 53a that can be engaged with the symmetrical guide ribs 27a of the sliding door rail L, and a rectangular mounting plate piece made of metal, respectively. 54 and a cap-like plate retainer 55 are provided.

可動弁４７は、ゴム製で、アウターシリンダ４１の口径に合わせた大きさで断面略台形状の弁部４７ａと、弁部４７ａより小径な円盤状の取付凸部４７ｂとからなり、取付凸部４７ｂを円形キャップ型ばね受け５６の片側凹部に圧入して一体に連結してなる。可動弁４７とばね受け５６には、各々の中心に軸挿通穴５７・５８を設けている。 The movable valve 47 is made of rubber, and includes a valve part 47a having a trapezoidal cross section with a size matching the diameter of the outer cylinder 41, and a disk-like mounting convex part 47b having a smaller diameter than the valve part 47a. 47b is press-fitted into a concave portion on one side of the circular cap-type spring receiver 56 and integrally connected. The movable valve 47 and the spring receiver 56 are provided with shaft insertion holes 57 and 58 at their centers.

圧力調整弁４８は、樹脂製で、図６でも示すように、カップ状の調整弁部４８ａと嵌合凸部４８ｂとからなる。調整弁部４８ａには、周壁部分にスリット状のオリフィス５９を円周方向に設け、周壁部分の端縁に一段細径な嵌付段部４８ｃを形成してなる。オリフィス５９は、調整弁部４８ａの周壁部分で、開口幅を外周方向一側へ向け漸次狭めて開けてなる。嵌合凸部４８ｂには、外周に環状溝４８ｄを凹設し、環状溝４８ｃにＯリング６５を嵌着している。 The pressure regulating valve 48 is made of resin and includes a cup-shaped regulating valve portion 48a and a fitting convex portion 48b as shown in FIG. In the adjustment valve portion 48a, a slit-like orifice 59 is provided in the circumferential direction on the peripheral wall portion, and a fitting step portion 48c having a small diameter is formed on the edge of the peripheral wall portion. The orifice 59 is a peripheral wall portion of the adjustment valve portion 48a and is opened by gradually narrowing the opening width toward one side in the outer circumferential direction. An annular groove 48d is recessed in the outer periphery of the fitting convex portion 48b, and an O-ring 65 is fitted in the annular groove 48c.

圧力調整弁４８は、入口開口５０からアウターシリンダ４１内に挿入し、図５に示すように、嵌合凸部４８ｂを弁取付口５１にＯリング６５を介して液密に嵌め込んでＥリング６６でアウターシリンダ４１に掛け止める。それから、油圧ダンパ４０・４５では、アウターシリンダ４１内にオイルＯを注入する。一方、可動弁４７を、軸挿通穴５７・５８に基端軸部を貫挿してピストンロッド４４に軸着し、該ピストンロッドの先端側軸部４４ｂに復帰ばね４６を巻装してから、ストッパ５２の受止め板５３を、取付板片５４と板押え５５とで挟んで雄ねじ４４ａに螺着してストッパ５２をピストンロッド４４の先端に固定し、ピストン組立体として組み立てる。 The pressure regulating valve 48 is inserted into the outer cylinder 41 from the inlet opening 50, and as shown in FIG. 5, the fitting convex portion 48b is fitted into the valve mounting port 51 in a liquid-tight manner via an O-ring 65, thereby making an E-ring. At 66, it is hung on the outer cylinder 41. Then, in the hydraulic dampers 40 and 45, oil O is injected into the outer cylinder 41. On the other hand, the movable valve 47 is inserted into the shaft insertion holes 57 and 58 through the proximal end shaft portion and attached to the piston rod 44, and the return spring 46 is wound around the distal end side shaft portion 44b of the piston rod. The stopper plate 53 of the stopper 52 is sandwiched between the mounting plate piece 54 and the plate retainer 55 and screwed to the male screw 44a, and the stopper 52 is fixed to the tip of the piston rod 44, and assembled as a piston assembly.

次いで、このピストン組立体を、ピストン４３をインナーシリンダ４２内に挿入した状態で、入口開口５０からアウターシリンダ４１内に嵌入し、インナーシリンダ４２の基端縁を調整弁部４８ａの嵌付段部４８ｄに嵌め付けて圧力調整弁４８に接続し、アウターシリンダ４１内に、インナーシリンダ４２との間でオイルＯの還流路ｒを形成する。それと共に、アウターシリンダ４１内に可動弁４７を直線往復動可能に嵌合し、該可動弁によってアウターシリンダ４１内を、オイルＯの還流路ｒと通ずる油圧室Ｒ１と、還流路ｒと遮断する非油圧室Ｒ２とに区画して油圧室Ｒ１内にオイルＯを密封する。しかる後、油圧ダンパ４０・４５は、図７および図８（Ａ）に示すように、外蓋４９を入口開口５０に嵌め込んで閉止すると、非油圧室Ｒ２内において外蓋４９と可動弁４７との間で復帰ばね４６を非圧縮状態で挟んで保持し、これにより、復帰ばね４６を介して油圧室Ｒ１内の充填オイルＯにピストン４３が押され、ピストンロッド４４をアウターシリンダ４１内から最大長さ突出させてストッパ５２を所定の引戸受止位置に位置決め保持した状態で、組み立ててなる。 Next, the piston assembly is fitted into the outer cylinder 41 from the inlet opening 50 with the piston 43 inserted into the inner cylinder 42, and the base end edge of the inner cylinder 42 is fitted to the fitting step portion of the adjustment valve portion 48a. The oil O is connected to the pressure regulating valve 48 and is connected to the pressure adjusting valve 48, and the oil O reflux path r is formed in the outer cylinder 41 with the inner cylinder 42. At the same time, the movable valve 47 is fitted into the outer cylinder 41 so as to be able to reciprocate linearly, and the movable cylinder shuts off the inside of the outer cylinder 41 from the hydraulic chamber R1 communicating with the reflux path r of the oil O and the reflux path r. The oil O is sealed in the hydraulic chamber R1 by partitioning with the non-hydraulic chamber R2. Thereafter, as shown in FIG. 7 and FIG. 8A, when the outer lid 49 is fitted into the inlet opening 50 and closed, the hydraulic dampers 40 and 45 close the outer lid 49 and the movable valve 47 in the non-hydraulic chamber R2. The return spring 46 is held in a non-compressed state between the piston 43 and the piston 43 against the filled oil O in the hydraulic chamber R 1 via the return spring 46, and the piston rod 44 is moved from the outer cylinder 41. The stopper 52 is assembled in a state where the stopper 52 is positioned and held at a predetermined sliding door receiving position by projecting the maximum length.

従って、油圧ダンパ４０・４５は、仮にストッパ５２を手で押してピストン４３をインナーシリンダ４２内深く押し込むと、ピストン４３がインナーシリンダ４２内を押動するに従い、オイルＯの粘性抵抗により制動力を発生する。それと同時に、油圧ダンパ４０・４５では、図５中矢示するように、オイルＯが押圧されてインナーシリンダ４２内から圧力調整弁４８のオリフィス５９を通って還流路ｒへ圧送され、すると、還流路ｒを流動するオイルＯの動圧により可動弁４７を外蓋４９側へ押動し、図８（Ｂ）に示すように復帰ばね４６を圧縮するが、そのとき、ストッパ５２から手を離してピストン４３の押し込みを解除すると、復帰ばね４６の圧縮が解かれて弾性反発力を作用し、この弾性反発力でピストン４３を押し戻し、ピストンロッド４４をアウターシリンダ４１内から最大長さ突出させて、ストッパ５２を元の引戸受止位置に戻す構造になっている。 Accordingly, if the hydraulic dampers 40 and 45 push the stopper 52 by hand and push the piston 43 deeply into the inner cylinder 42, the hydraulic damper 40/45 generates a braking force due to the viscous resistance of the oil O as the piston 43 pushes inside the inner cylinder 42. To do. At the same time, in the hydraulic dampers 40 and 45, as indicated by arrows in FIG. 5, the oil O is pressed and is pumped from the inner cylinder 42 through the orifice 59 of the pressure regulating valve 48 to the reflux path r. The movable valve 47 is pushed toward the outer lid 49 by the dynamic pressure of the oil O flowing through r, and the return spring 46 is compressed as shown in FIG. 8B. At that time, the hand is released from the stopper 52. When the push-in of the piston 43 is released, the compression of the return spring 46 is released and an elastic repulsive force is applied, the piston 43 is pushed back by this elastic repulsive force, and the piston rod 44 protrudes from the inside of the outer cylinder 41 to the maximum length, The stopper 52 is returned to the original sliding door receiving position.

なお、油圧ダンパ４０・４５では、アウターシリンダ４１は、図示省略したが、圧力調整弁４８の調整弁部４８ａ周りにおいて、圧調節用周壁部分の壁厚を、内周方向一側に向け肉厚にして漸次内向きに出っ張らせて成形し、調整弁部４８ａとの間での還流路ｒが周方向一側に漸次狭まるように形成している。そこで、図５で示す圧力調整弁４８は、油圧ダンパ４０・４５の組立時に、引戸Ｄの重量等に応じて、アウターシリンダ４１の圧調節用周壁部分に対してオリフィス５９の回動位置を調節することにより、ピストン４３がインナーシリンダ４２内深く押動したとき、インナーシリンダ４２内からオリフィス５９を通って還流路ｒへ流動するオイルＯの動圧が調整される構造になっている。 In the hydraulic dampers 40 and 45, the outer cylinder 41 is not shown, but the wall thickness of the pressure adjusting peripheral wall portion is increased toward the inner circumferential direction around the adjusting valve portion 48a of the pressure adjusting valve 48. In this way, it is formed so as to protrude gradually inward, and the reflux path r between the adjustment valve portion 48a and the adjustment valve portion 48a is gradually narrowed to one side in the circumferential direction. Therefore, the pressure adjustment valve 48 shown in FIG. 5 adjusts the rotational position of the orifice 59 relative to the pressure adjusting peripheral wall portion of the outer cylinder 41 according to the weight of the sliding door D and the like when the hydraulic dampers 40 and 45 are assembled. Thus, when the piston 43 is pushed deeply into the inner cylinder 42, the dynamic pressure of the oil O flowing from the inner cylinder 42 through the orifice 59 to the reflux path r is adjusted.

自閉式引戸装置Ａでは、図１および図９（Ａ）に示すように、ダンパ取付ケース６０・６１を、互いのダンパ挿入口６７が向かい合わせで、引戸レールＬのガイドレール部１７内の長さ方向戸先側および戸尻側の端部にそれぞれ嵌入してねじ止めする。それから、ダンパ挿入口６７に、図９（Ｂ）に示すように、油圧ダンパ４０・４５のアウターシリンダ４１をダンパ取付ケース６０・６１内に挿入し、図９（Ｃ）に示すように、ダンパ挿入口６７側に有する差込み穴６８に取付用クリップ６９を差し込んで抜け止めし、油圧ダンパ４０・４５を、それぞれ引戸受止位置に突出したストッパ５２が向い合わせ状態で、ダンパ取付ケース６０・６１に装着し、これによって、引戸レールＬのガイドレール部１７内の戸先側および戸尻側に組み込んでなる。 In the self-closing type sliding door device A, as shown in FIGS. 1 and 9A, the damper mounting cases 60 and 61 are arranged in the length of the guide rail portion 17 of the sliding door rail L with the damper insertion ports 67 facing each other. Fit into the end of the side door side and the door bottom side and screw it in. Then, as shown in FIG. 9B, the outer cylinder 41 of the hydraulic dampers 40 and 45 is inserted into the damper mounting cases 60 and 61 into the damper insertion port 67, and the damper is inserted as shown in FIG. 9C. The mounting clip 69 is inserted into the insertion hole 68 on the insertion port 67 side to prevent it from coming off, and the dampers 60 and 61 are placed with the hydraulic dampers 40 and 45 facing the stoppers 52 projecting to the sliding door receiving positions. Thus, the sliding door rail L is incorporated into the door end side and the door bottom side in the guide rail portion 17 of the sliding door rail L.

他方、引戸Ｄは、図１〜図３に示すように、ガイドレール部２７のガイドリブ２７ａ間に戸車２０・２１を転動自在に係合させて引戸レールＬに上吊りしてから、自閉手段Ｂのワイヤー２９を、先端２９ａを渦巻バネ３３に抗して引っ張って、戸先側の戸車２０上に乗せた状態でガイドレール部１７内を通して引き出してガイドレール部１７に掛け止め、重りユニット３０を重りガイド部材３５の案内で昇降可能にガイド穴２４内に吊り下げ状態で収納してなる。 On the other hand, as shown in FIGS. 1 to 3, the sliding door D is self-closed after the door pulleys 20 and 21 are movably engaged between the guide ribs 27 a of the guide rail portion 27 and suspended from the sliding door rail L. Pulling the wire 29 of the means B against the spiral spring 33, pulling the wire 29 through the guide rail 17 in a state where the tip 29a is placed on the door pulley 20 on the door-end side, and hooking it on the guide rail 17; 30 is stored in a suspended state in the guide hole 24 so that it can be lifted and lowered by the guide of the weight guide member 35.

さて、上述した構成の自閉式引戸装置Ａでは、トイレの引戸Ｄを開くときは、トイレの外側から、バーハンドルｈ２を手で持って、図２に示すように開方向Ｘへ引くと、それに従って、ワイヤー２９が重りユニット３０の渦巻バネ３３に抗してワイヤーリール３２から繰り出され、引戸Ｄは引戸レールＬの案内で次第に開方向Ｘへと移動して開口部Ｓを開く。それから、引戸Ｄは、開方向Ｘへ移動して後、戸当り１１に当って止まる全開位置の手前で、図１０および図１１に示すように、戸尻側戸車ユニット１５の突当て板２３が戸尻側油圧ダンパ４５のストッパ５２に当って、いったん受け止められる。すると、油圧ダンパ４５は、ストッパ５２が引戸Ｄに押されて、図５中鎖線で示すように、ピストン４３がインナーシリンダ４２内深く徐々に押し込まれるが、そのとき、オイルＯの粘性抵抗により制動力を発生し、これによって、引戸Ｄは、ブレーキの利いた負荷状態で減速しながら、ゆっくり開方向Ｘへ移動する。その結果、本発明の自閉式引戸装置Ａでは、戸尻側の袖パネルＰ２を図示例の壁パネル状のものに代え、例えば引戸を中に収納する戸袋構造のものであっても、当該戸袋の引戸収納口にバーハンドルｈ２等の取手が急接近することがなく、間に指などを挟んで怪我をすることを防止することができる。 Now, with the self-closing sliding door device A having the above-described configuration, when opening the sliding door D of the toilet, holding the bar handle h2 by hand from the outside of the toilet and pulling it in the opening direction X as shown in FIG. Accordingly, the wire 29 is fed out from the wire reel 32 against the spiral spring 33 of the weight unit 30, and the sliding door D gradually moves in the opening direction X with the guidance of the sliding door rail L to open the opening S. Then, the sliding door D moves in the opening direction X, and then comes into contact with the door stop 11 before the fully open position, as shown in FIG. 10 and FIG. It hits the stopper 52 of the door-side hydraulic damper 45 and is received once. Then, the hydraulic damper 45 is pushed by the sliding door D and the piston 43 is gradually pushed deeply into the inner cylinder 42 as shown by the chain line in FIG. Power is generated, so that the sliding door D slowly moves in the opening direction X while decelerating in a braked load state. As a result, in the self-closing type sliding door device A of the present invention, even if the door bottom sleeve panel P2 is replaced with the wall panel shape shown in the illustrated example, for example, a door pocket structure that houses a sliding door therein, the door pocket The handle such as the bar handle h2 does not approach the sliding door storage opening immediately, and it is possible to prevent injuries with a finger or the like in between.

次いで、開口部Ｓを全開させるには、そのまま引戸ＤをオイルＯの粘性抵抗に抗して開方向へ押し引き、図１２および図１３に示すように、全開位置で戸当り１１に当てて止めればよい。そのとき、油圧ダンパ４５では、引戸Ｄにストッパ５２が押されて、図５中鎖線で示すように、ピストン４３がインナーシリンダ４２内深く押し込まれると、オイルＯの粘性抵抗により制動力を発生すると同時に、ピストン４３がインナーシリンダ４２内を押動するに従って、オイルＯが押圧されてインナーシリンダ４２内から圧力調整弁４８のオリフィス５９を通って還流路ｒへ圧送され、すると、図８（Ｂ）に示すように、還流路ｒを流動するオイルＯの動圧により可動弁４７を外蓋４９側へ押動して復帰ばね４６を圧縮している。しかる後、いま全開状態にある引戸Ｄのバーハンドルｈ２から手を離して、トイレ内へ入る。すると、自閉式引戸装置Ａでは、自閉手段Ｂの渦巻バネ３３の回転付勢力が働いて、ワイヤー２９がワイヤーリール３２に巻き取られ、その巻取動作に従い、引戸Ｄを、全開位置から閉方向Ｙへ引っ張って自動的に移動させる。このとき、戸尻側油圧ダンパ４５では、ピストン４３の押し込みが解除されると、復帰ばね４６の圧縮が解かれて弾性反発力を作用し、この弾性反発力でピストン４３を押し戻し、ピストンロッド４４をアウターシリンダ４１内から最大長さ突出させて、ストッパ５２を元の引戸受止位置に戻して待機状態に置く。従って、自閉式引戸装置Ａでは、指詰め事故などを防止して安全に引戸Ｄを全開させて後、その都度、ストッパ５２を元の引戸受止位置に自動的に復帰させることができる。 Next, in order to fully open the opening S, the sliding door D is pushed and pulled in the opening direction against the viscous resistance of the oil O as it is, and as shown in FIG. 12 and FIG. That's fine. At that time, in the hydraulic damper 45, when the stopper 52 is pushed by the sliding door D and the piston 43 is pushed deeply into the inner cylinder 42 as shown by a chain line in FIG. At the same time, as the piston 43 pushes in the inner cylinder 42, the oil O is pressed and is pumped from the inner cylinder 42 through the orifice 59 of the pressure regulating valve 48 to the reflux path r. As shown in FIG. 5, the return valve 46 is compressed by pushing the movable valve 47 toward the outer lid 49 by the dynamic pressure of the oil O flowing through the reflux path r. After that, the hand is released from the bar handle h2 of the sliding door D which is now fully opened, and enters the toilet. Then, in the self-closing type sliding door device A, the rotational urging force of the spiral spring 33 of the self-closing means B works, the wire 29 is wound around the wire reel 32, and the sliding door D is closed from the fully open position according to the winding operation. Pull in direction Y to move automatically. At this time, in the door butt side hydraulic damper 45, when the push-in of the piston 43 is released, the return spring 46 is compressed and an elastic repulsive force acts, and the piston 43 is pushed back by this elastic repulsive force. Is protruded from the outer cylinder 41 by the maximum length, and the stopper 52 is returned to the original sliding door receiving position and placed in a standby state. Therefore, in the self-closing type sliding door device A, it is possible to automatically return the stopper 52 to the original sliding door receiving position after the sliding door D is fully opened safely by preventing a finger-filling accident or the like.

それから、引戸Ｄは、そのまま閉方向Ｙへ移動して後、今度は、全閉位置の手前で、図１４および図１５に示すように、戸先側戸車ユニット１４の突当て板２２が戸先側油圧ダンパ４０のストッパ５２に当って、いったん受け止められる。すると、油圧ダンパ４０は、ストッパ５２が引戸Ｄに押されて、図５中鎖線で示すように、ピストン４３がインナーシリンダ４２内深く徐々に押し込まれるが、そのときに、オイルＯの粘性抵抗により制動力を発生し、引戸Ｄは、ブレーキの利いた負荷状態で減速しながら、ゆっくり閉方向Ｙへ自動的に移動し、開口部Ｓを、図１６および図１７に示すように全閉する。そこで、自閉式引戸装置Ａでは、この閉時も、引戸Ｄと袖パネルＰ１の間などに指などを挟んで怪我をすることを防止することができる。このとき、油圧ダンパ４５では、引戸Ｄにストッパ５２が押されて、図５中鎖線で示すようにピストン４３がインナーシリンダ４２内深く押し込まれると、オイルＯの粘性抵抗により制動力を発生すると同時に、ピストン４３がインナーシリンダ４２内を押動するに従って、オイルＯが押圧されてインナーシリンダ４２内から圧力調整弁４８のオリフィス５９を通って還流路ｒへと圧送され、すると、還流路ｒを流動するオイルＯの動圧により可動弁４７を外蓋４９側へ押動して復帰ばね４６を圧縮している。そこで、このとき、図示引戸装置Ａでは、図示省略するが、トイレの内側から、引戸Ｄを押さえながら、例えば打掛錠で引戸Ｄを施錠して全閉状態をロックする。 Then, after the sliding door D is moved in the closing direction Y as it is, this time, in front of the fully closed position, as shown in FIGS. It hits the stopper 52 of the side hydraulic damper 40 and is received once. Then, in the hydraulic damper 40, the stopper 52 is pushed by the sliding door D, and the piston 43 is gradually pushed deeply into the inner cylinder 42 as indicated by the chain line in FIG. A braking force is generated, and the sliding door D automatically moves slowly in the closing direction Y while decelerating in a brake-applied load state, and fully closes the opening S as shown in FIGS. Therefore, in the self-closing type sliding door device A, even when this is closed, it is possible to prevent injury by pinching a finger or the like between the sliding door D and the sleeve panel P1. At this time, in the hydraulic damper 45, when the stopper 52 is pushed by the sliding door D and the piston 43 is pushed deeply into the inner cylinder 42 as shown by a chain line in FIG. As the piston 43 pushes in the inner cylinder 42, the oil O is pressed and is pumped from the inner cylinder 42 through the orifice 59 of the pressure regulating valve 48 to the reflux path r, and then flows in the reflux path r. The return pressure 46 is compressed by pushing the movable valve 47 toward the outer lid 49 by the dynamic pressure of the oil O. Therefore, at this time, in the illustrated sliding door device A, while not illustrated, the sliding door D is locked from the inside of the toilet while the sliding door D is being pressed, for example, by locking the door to lock the fully closed state.

トイレの使用後は、打掛錠を解錠して引戸Ｄのロックを解除すると、戸先側油圧ダンパ４０では、ピストン４３の押し込みが解除され、そうすると、復帰ばね４６の圧縮が解かれて弾性反発力を作用し、この弾性反発力でピストン４３を押し戻し、図１４および図１５に示すように、ピストンロッド４４をアウターシリンダ４１内から最大長さ突出させて、ストッパ５２を元の引戸受止位置に押し戻し、そのまま引戸Ｄを半開き状態で受け止めて、いまトイレが未使用状態であることを表示する。 After use of the toilet, when the lock is unlocked and the sliding door D is unlocked, the door-side hydraulic damper 40 releases the push-in of the piston 43. Then, the return spring 46 is uncompressed and elastic. A repulsive force is applied, and the piston 43 is pushed back by this elastic repulsive force. As shown in FIGS. 14 and 15, the piston rod 44 protrudes from the inside of the outer cylinder 41 to the maximum length, and the stopper 52 is received by the original sliding door. Pushing back to the position, the sliding door D is received in a half-open state, and it is displayed that the toilet is not in use.

なお、図示自閉式引戸装置Ａは、この自閉時、仮に、引戸Ｄが渦巻バネ３３の回転付勢力および油圧ダンパ４０の制動力に抗して強い力で閉方向Ｙへ強引に引かれると、この引戸Ｄの急激な動きに追従してワイヤー２９を巻き取ることができず、ワイヤー２９の引き出し側に弛みを生じるが、そのとき、重りユニット３０は、いま発生したワイヤー２９の弛みの長さ分だけ重りガイド部材３５の案内でガイド穴２４の深さ方向へ下降し、即座にワイヤー２９を元の引っ張り状態に戻して、弛みを除去する。従って、自閉式引戸装置Ａは、ワイヤー２９に弛みがなくなると、次いで、渦巻バネ３３の回転付勢力でワイヤー２９をワイヤーリール３２に再び巻き取り始め、そのワイヤー巻取長さに応じて、重りユニット３０を重りガイド部材３５の案内で引っ張り上げ、ゼンマイケース３１を抜止め部に当てて元の制動高さ位置に止めて保持し、更に引き続きワイヤー２９を巻き取って引戸Ｄを閉方向Ｙへ引っ張りながら、ゆっくり全閉位置へ移動させて正常に自閉させる。 In the illustrated self-closing type sliding door device A, when the self-closing is performed, if the sliding door D is forcibly pulled in the closing direction Y with a strong force against the rotational biasing force of the spiral spring 33 and the braking force of the hydraulic damper 40. The wire 29 cannot be wound up following the sudden movement of the sliding door D, and a slack is generated on the pull-out side of the wire 29. At that time, the weight unit 30 causes the length of the slack of the wire 29 that has just occurred. By the guide of the weight guide member 35 by that amount, the guide hole 24 is lowered in the depth direction, and the wire 29 is immediately returned to the original pulled state to remove the slack. Therefore, the self-closing type sliding door apparatus A starts winding the wire 29 around the wire reel 32 again by the rotational biasing force of the spiral spring 33 when the wire 29 is not loosened, and the weight is increased according to the wire winding length. The unit 30 is pulled up by the guide of the weight guide member 35, the mainspring case 31 is applied to the retaining portion and held at the original braking height position, and further the wire 29 is wound up to move the sliding door D in the closing direction Y. While pulling, slowly move to the fully closed position and allow it to close normally.

本発明の一例である自閉式引戸装置を適用した引戸構造体を示す分解斜視図である。It is a disassembled perspective view which shows the sliding door structure to which the self-closing type sliding door apparatus which is an example of this invention is applied. 引戸構造体を、引戸の全閉直前状態において示す組立斜視図である。It is an assembly perspective view which shows a sliding door structure in the state immediately before full closing of a sliding door. 自閉手段の構造を示す正面図である。It is a front view which shows the structure of a self-closing means. 油圧式ダンパの分解斜視図である。It is a disassembled perspective view of a hydraulic damper. 油圧式ダンパの構造を示す縦断面図である。It is a longitudinal section showing the structure of a hydraulic damper. アウターシリンダと圧力調整弁の取付構造を示す分解斜視図である。It is a disassembled perspective view which shows the attachment structure of an outer cylinder and a pressure regulation valve. 油圧式ダンパの組立斜視図である。It is an assembly perspective view of a hydraulic damper. 油圧式ダンパを、（Ａ）復帰ばねが自然状態で示す斜視図、（Ｂ）復帰ばねが圧縮状態で示す斜視図である。FIG. 5A is a perspective view showing a hydraulic damper in which the return spring is in a natural state, and FIG. 5B is a perspective view in which the return spring is in a compressed state. 油圧式ダンパの取付手順を示す斜視図である。It is a perspective view which shows the attachment procedure of a hydraulic damper. 引戸構造体を、引戸が全開直前の状態において示す正面図である。It is a front view which shows a sliding door structure in the state immediately before a sliding door is fully opened. 引戸構造体を、引戸が全開直前の状態において示す斜視図である。It is a perspective view which shows a sliding door structure in the state just before a sliding door is fully opened. 引戸構造体を、引戸が全開状態において示す正面図である。It is a front view which shows a sliding door structure in a fully open state of a sliding door. 引戸構造体を、引戸が全開状態において示す斜視図である。It is a perspective view which shows a sliding door structure in a fully open state of a sliding door. 引戸構造体を、引戸が半開き状態において示す正面図である。It is a front view which shows a sliding door structure in a half-open state of a sliding door. 引戸構造体を、引戸が半開き状態において示す斜視図である。It is a perspective view which shows a sliding door structure in a half-opened state of a sliding door. 引戸構造体を、引戸が全閉状態において示す正面図である。It is a front view which shows a sliding door structure in a fully closed state of a sliding door. 引戸構造体を、引戸が全閉状態において示す斜視図である。It is a perspective view which shows a sliding door structure in a fully closed state of a sliding door. 従来の自閉式引戸装置を示す正面図である。It is a front view which shows the conventional self-closing type sliding door apparatus.

符号の説明Explanation of symbols

Ａ自閉式引戸装置
Ｂ自閉手段
Ｄ引戸
Ｌ引戸レール
Ｒ１油圧室
Ｐ２非油圧室
Ｏオイル（粘性液体）
Ｘ開方向
Ｙ閉方向
ｒ還流路
２０・２１戸車
４０・４５油圧式ダンパ（制動手段）
４１アウターシリンダ
４２インナーシリンダ
４３ピストン
４４ピストンロッド
４６復帰ばね
４７可動弁
４８圧力調整弁
４９外蓋
５２ストッパ
５９オリフィス A Self-closing type sliding door device B Self-closing means D Sliding door L Sliding door rail R1 Hydraulic chamber P2 Non-hydraulic chamber O Oil (viscous liquid)
X Open direction Y Close direction r Return path 20/21 Door wheel 40/45 Hydraulic damper (braking means)
41 outer cylinder 42 inner cylinder 43 piston 44 piston rod 46 return spring 47 movable valve 48 pressure regulating valve 49 outer lid 52 stopper 59 orifice

Claims

引戸の上端部に搭載した戸車を引戸レールに係合させて前記引戸を開閉方向に往復移動自在に上吊りし、該上吊り引戸を、開方向に手で引いて開位置に移動させて後、閉時に手を離すと開位置から前記引戸レールの案内で閉方向へ自動的に移動させる自閉式引戸装置において、
前記引戸レールの長さ方向戸先側および戸尻側の双方又はいずれか一方の側に、前記引戸の制動手段を取り付け、
該制動手段は、
粘性液体を封入したシリンダと、該シリンダ内に直線往復移動可能に配設したピストンと、該ピストンを基端に固着する一方、先端側軸部を前記シリンダ内から突出させて先端に前記引戸を受け止めるストッパを固着したピストンロッドとを備え、該ストッパに前記引戸が当って前記ピストンが押されると、前記粘性液体の粘性抵抗によって制動力を発生するダンパで構成し、
前記シリンダと前記ピストンロッド間に、前記引戸が前記ストッパに当って前記ピストンが押されると、弾性反発力が働いて前記ピストンロッドを押し戻す復帰ばねを介装してなることを特徴とする、自閉式引戸装置。 Engage a sliding door rail mounted on the upper end of the sliding door so that the sliding door can be reciprocated in the opening and closing direction, and pull the hand in the opening direction to move it to the open position. In the self-closing type sliding door device that automatically moves in the closing direction by the guidance of the sliding door rail from the open position when the hand is released at the time of closing,
The sliding means of the sliding door is attached to both or any one of the door end side and the door bottom side in the length direction of the sliding door rail,
The braking means includes
A cylinder filled with viscous liquid, a piston disposed in the cylinder so as to be capable of linear reciprocation, and the piston are fixed to the base end, while a distal end side shaft portion is protruded from the cylinder, and the sliding door is provided at the distal end. A piston rod fixed with a stopper for receiving, and when the sliding door hits the stopper and the piston is pushed, it is constituted by a damper that generates a braking force by the viscous resistance of the viscous liquid,
A return spring is interposed between the cylinder and the piston rod so that when the sliding door hits the stopper and the piston is pushed, an elastic repulsive force acts to push the piston rod back. Closed sliding door device.

前記制動手段は、前記粘性液体がオイルからなる油圧ダンパであって、
前記シリンダを、入口開口を外蓋で閉止するアウターシリンダと、該アウターシリンダ内に間に前記オイルの還流路をあけて挿設するインナーシリンダとで形成し、該インナーシリンダ内に前記ピストンを配設し、
前記復帰ばねを圧縮コイルばねで形成し、該圧縮コイルばねを前記ピストンロッドに巻装し、
該ピストンロッドを中心の軸挿通穴に貫挿させて前記アウターシリンダ内に直線往復動可能に嵌合し、該アウターシリンダ内を油圧室と非油圧室とに区画し、前記外蓋との間の非油圧室で前記圧縮コイルばねを挟持する可動弁を配設してなることを特徴とする、請求項１に記載の自閉式引戸装置。 The braking means is a hydraulic damper in which the viscous liquid is made of oil,
The cylinder is formed by an outer cylinder that closes an inlet opening with an outer lid, and an inner cylinder that is inserted in the outer cylinder with a return passage for the oil, and the piston is arranged in the inner cylinder. Set up
The return spring is formed of a compression coil spring, and the compression coil spring is wound around the piston rod;
The piston rod is inserted into a central shaft insertion hole and fitted into the outer cylinder so as to be linearly reciprocable. The outer cylinder is partitioned into a hydraulic chamber and a non-hydraulic chamber, and between the outer lid and the outer cylinder. The self-closing type sliding door device according to claim 1, wherein a movable valve that sandwiches the compression coil spring is disposed in the non-hydraulic chamber.

前記アウターシリンダと前記インナーシリンダ間には、前記ピストンが押されると、前記インナーシリンダ内からオリフィスを通って前記還流路へ流動する前記オイルの動圧を調整する圧力調整弁を配設してなることを特徴とする、請求項２に記載の自閉式引戸装置。 Between the outer cylinder and the inner cylinder, when the piston is pushed, a pressure adjusting valve is provided for adjusting the dynamic pressure of the oil flowing from the inner cylinder through the orifice to the reflux path. The self-closing type sliding door device according to claim 2, wherein