JP6391262B2 - Latch device and joinery - Google Patents

Latch device and joinery Download PDF

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JP6391262B2
JP6391262B2 JP2014050171A JP2014050171A JP6391262B2 JP 6391262 B2 JP6391262 B2 JP 6391262B2 JP 2014050171 A JP2014050171 A JP 2014050171A JP 2014050171 A JP2014050171 A JP 2014050171A JP 6391262 B2 JP6391262 B2 JP 6391262B2
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latch
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瞳 片峰
瞳 片峰
竹長　宰児
宰児 竹長
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YKK AP Inc
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Description

本発明は、ラッチ装置、及びこのラッチ装置を備えた建具に関する。   The present invention relates to a latch device and a fitting including the latch device.

枠体に開閉体を閉じ位置と開き位置とに亘って開閉自在に取り付けた建具にあっては、閉じ位置の開閉体の開き移動を規制するラッチ装置を備えている。
このラッチ装置としては、特許文献１に開示したように、開閉体に取り付けたラッチ本体部と、枠体に設けた被係止部を備え、ラッチ本体部は、本体部材にラッチ取付部材を上下動自在でばねにより上方位置に保持して設け、そのラッチ取付部材にラッチを軸により係止姿勢と非係止姿勢とに回動自在に取り付けてある。
そして、ラッチが非係止姿勢で開閉体を閉じ位置に移動すると、ラッチのトリガ部が被係止部に接してラッチが係止姿勢に回動し、ラッチの係止部が被係止部の閉じ側面に接して開閉体の開き移動を規制する。
ラッチが係止姿勢で開閉体を閉じ位置に移動すると、ラッチの係止部が被係止部の開き側面に接してラッチがラッチ取付部材とともに下方に移動して被係止部を越えるとラッチがラッチ取付部材とともに上方に移動して係止部が被係止部の閉じ側面に接して開閉体の開き移動を規制する。 In a fitting in which an opening / closing body is attached to a frame body so as to be freely opened and closed between a closed position and an open position, a latch device is provided that regulates the opening movement of the opening / closing body in the closed position.
As disclosed in Patent Document 1, the latch device includes a latch main body portion attached to the opening and closing body and a locked portion provided on the frame body. The latch main body portion moves the latch attachment member up and down on the main body member. It is movable and is held at an upper position by a spring, and a latch is attached to the latch mounting member so as to be rotatable between a locking posture and a non-locking posture by a shaft.
Then, when the latch is moved to the closed position in the non-locking posture, the trigger portion of the latch comes into contact with the locked portion and the latch rotates to the locking posture, and the latching portion of the latch is locked. The opening movement of the opening / closing body is regulated in contact with the closed side surface.
When the latch moves to the closed position with the latching posture, the latching part of the latch touches the open side of the latched part, and the latch moves downward together with the latch mounting member and exceeds the latched part. Moves upward together with the latch mounting member, and the locking portion comes into contact with the closed side surface of the locked portion to restrict the opening movement of the opening / closing body.

特許第４１９１１４７号公報Japanese Patent No. 4191147

前述した従来のラッチ装置であれば、ラッチが非係止姿勢及び係止姿勢で開閉体を閉じ位置に移動することにより開閉体の開き移動を規制することができる。
しかしながら、ラッチの係止部が被係止部の開き側面に接してラッチがラッチ取付部材とともに下方に移動するとき、ラッチ取付部材とラッチを回動自在に連結する軸に大きな負荷がかかり、長期間の使用によって軸が変形や損傷の原因によりラッチが係止姿勢と非係止姿勢とに渡ってスムーズに回動できなくなることがある。 In the conventional latch device described above, the opening and closing movement of the opening / closing body can be restricted by moving the opening / closing body to the closed position in the non-locking posture and the locking posture.
However, when the latch locking portion comes into contact with the open side of the locked portion and the latch moves downward together with the latch mounting member, a large load is applied to the shaft that rotatably connects the latch mounting member and the latch. Depending on the period of use, the latch may not be able to rotate smoothly between the locked position and the locked position due to deformation or damage of the shaft.

本発明の目的は、ラッチが非係止姿勢の状態及び係止姿勢の状態で開閉体を閉じ位置に移動して開閉体の開き移動を規制できると共に、ラッチが係止姿勢と非係止姿勢とに渡って長期間スムーズに回動するようにしたラッチ装置及び、そのラッチ装置を備えた建具とすることである。   The object of the present invention is to control the opening movement of the opening / closing body by moving the opening / closing body to the closed position in the state where the latch is in the non-locking position and in the locking position, and the latch is in the locking position and the non-locking position. A latch device that can rotate smoothly over a long period of time, and a fitting including the latch device.

本発明は、開閉体に設けられるラッチ本体部と、枠体に設けられる被係止部とを備え、ラッチ本体部が被係止部に係止することで閉じ位置の開閉体の開き移動を規制するラッチ装置であって、
前記ラッチ本体部は、係止部とトリガ部を有したラッチを備え、
該ラッチは、軸部を中心として係止姿勢と非係止姿勢に回動すると共に、軸部とともに被係止部に接近及び離隔する方向に移動自在で、かつばねで被係止部に接近する位置に保持され、
前記ラッチが係止姿勢のときには、係止部が被係止部に係止し、非係止姿勢のときには、係止部が被係止部と離れ、かつトリガ部が被係止部の一方の側面と対向し、
前記ラッチが非係止姿勢で開閉方向閉じ側に移動すると、トリガ部が被係止部の一方の側面に接してラッチが係止姿勢に向けて回動し、閉じ位置でラッチが係止姿勢に回動して係止部が被係止部の他方の側面に接して係止し、
前記ラッチが係止姿勢で開閉方向閉じ側に移動すると、係止部が被係止部の一方の側面に沿って滑ることでラッチが軸部とともにばねに抗して被係止部と離隔する方向に移動し、閉じ位置でラッチがばねで前記被係止部に接近する位置に移動して係止部が被係止部の他方の側面に接して係止するようにしたことを特徴とするラッチ装置である。 The present invention includes a latch main body portion provided on the opening / closing body and a locked portion provided on the frame body, and the latch main body portion is locked to the locked portion so that the opening / closing body in the closed position is opened. A latch device to regulate,
The latch main body includes a latch having a locking portion and a trigger portion,
The latch pivots about a shaft portion to a locking posture and a non-locking posture, and is movable in a direction approaching and separating from the locked portion together with the shaft portion, and approaches the locked portion with a spring. Held in a position to
When the latch is in the locking posture, the locking portion is locked to the locked portion, and when the latch is in the non-locking posture, the locking portion is separated from the locked portion, and the trigger portion is one of the locked portions. Facing the side of
When the latch moves to the closing side in the opening / closing direction in the non-locking position, the trigger part comes into contact with one side surface of the locked part and the latch rotates toward the locking position, and the latch is locked in the closed position. And the locking part contacts and locks the other side surface of the locked part,
When the latch moves to the closing side in the opening / closing direction in the locking posture, the latching part slides along one side surface of the locked part, so that the latch is separated from the locked part against the spring together with the shaft part. In the closed position, the latch is moved to a position approaching the locked portion by a spring so that the locking portion contacts and locks the other side surface of the locked portion. It is a latch device.

本発明のラッチ装置においては、前記ラッチ本体部は、本体部材と、この本体部材に設けられ被係止部に接近及び離隔する方向の長孔である軸部支承孔を有したラッチ取付部材を備え、
前記ラッチは軸部を一体的に有し、この軸部を前記軸部支承孔に回動及び被係止部に接近及び離隔する方向に移動可能に嵌め合わせてラッチを係止姿勢と非係止姿勢に回動自在で、被係止部に接近及び離隔する方向に移動自在とし、
前記ラッチをばねにより前記被係止部に接近する位置に保持することができる。
このようにすれば、軸部がラッチに一体的に設けてあるから、軸部がラッチから抜けたりすることがないので、軸部が本体部材に接触して移動不良となることがなく、開閉体が閉じ位置でロックされることを防止できる。 In the latch device of the present invention, the latch main body portion includes a main body member and a latch mounting member having a shaft portion supporting hole which is a long hole in a direction of approaching and separating from the locked portion provided in the main body member. Prepared,
The latch has a shaft portion integrally, and the shaft portion is fitted to the shaft portion support hole so as to be able to rotate and move toward and away from the locked portion. It can be rotated in the stopping position, and can be moved in the direction approaching and separating from the locked part,
The latch can be held at a position approaching the locked portion by a spring.
In this way, since the shaft portion is provided integrally with the latch, the shaft portion does not come out of the latch, so that the shaft portion does not come into contact with the body member and does not move badly, and can be opened and closed. The body can be prevented from being locked in the closed position.

本発明のラッチ装置においては、前記ラッチ取付部材は本体部材に、本体部材の被係止部と対向した一側面から突出した第１の位置と、本体部材に収容した第２の位置とに渡って被係止部に接近及び離隔する方向に移動自在で、ばねにより前記第１の位置に保持して設け、
前記ラッチはラッチ取付部材に、係止部及びトリガ部がラッチ取付部材よりも被係止部側に突出した突出位置と、係止部及びトリガ部がラッチ取付部材に収容した収納位置とに渡って被係止部に接近及び離隔する方向に移動自在で、ばねにより突出位置に保持して設けることができる。
このようにすれば、ラッチ取付部材とラッチを本体部材に収容できるので、開閉体を天地逆置き時にラッチ取付部材、ラッチを破損等しないように保護できる。 In the latch device according to the present invention, the latch mounting member extends over the main body member from a first position protruding from one side surface facing the locked portion of the main body member and a second position accommodated in the main body member. Is movable in the direction of approaching and separating from the locked portion, and is held in the first position by a spring.
The latch extends over the latch mounting member from a protruding position where the locking portion and the trigger portion protrude to the locked portion side of the latch mounting member, and a storage position where the locking portion and the trigger portion are accommodated in the latch mounting member. Thus, it can be moved in the direction of approaching and separating from the locked portion, and can be held in a protruding position by a spring.
In this way, the latch mounting member and the latch can be accommodated in the main body member, so that the latch mounting member and the latch can be protected from being damaged when the open / close body is placed upside down.

本発明のラッチ装置においては、前記ラッチ取付部材に、ラッチを係止姿勢及び非係止姿勢に位置決めして保持するラッチ保持部材を被係止部に接近及び離隔する方向に移動自在に設け、
このラッチ保持部材に被係止部に接近及び離隔する方向に向かう杆体を設け、この杆体に挿通して設けたばねでラッチ保持部材を被係止部側に移動することで、ラッチ取付部材を第１の位置に保持し、ラッチを突出位置に保持することができる。
このようにすれば、バネの座屈を防止できると共に、ビビリ音を低減できる。 In the latch device of the present invention, the latch mounting member is provided with a latch holding member for positioning and holding the latch in the locking posture and the non-locking posture so as to be movable toward and away from the locked portion.
The latch holding member is provided with a housing that moves in a direction approaching and separating from the locked portion, and the latch holding member is moved to the locked portion side by a spring that is inserted through the housing to move the latch mounting member to the first position. The latch can be held in the protruding position.
In this way, the buckling of the spring can be prevented and chatter noise can be reduced.

本発明の建具は、枠体に開閉体を開閉自在に取り付けた建具であって、
前記開閉体に、請求項１〜３いずれか１項に記載のラッチ本体部を取り付け、前記枠体に、請求項１〜３いずれか１項に記載の被係止部を設け、
前記開閉体が開き位置のときに、ラッチ本体部のラッチが非係止姿勢の状態で、開閉体を閉じ移動するとラッチのトリガ部が被係止部に接して係止姿勢に向けて回動し、ラッチ本体部のラッチが係止姿勢の状態で、開閉体を閉じ移動するとラッチの係止部が被係止部に沿って滑ることで被係止部と離れる方向に移動し、
前記開閉体が閉じ位置のときに、前記ラッチが係止姿勢で、その係止部が被係止部に係止するようにしたことを特徴とする建具である。
The joinery of the present invention is a joinery in which an opening / closing body is attached to a frame body so as to be freely opened and closed,
The latch main body according to any one of claims 1 to 3 is attached to the opening / closing body, and the locked portion according to any one of claims 1 to 3 is provided to the frame.
When the opening / closing body is in the open position, when the opening / closing body is moved while the latch of the latch main body is in the non-locking posture, the trigger portion of the latch contacts the locked portion and rotates toward the locking posture. Then, when the latch of the latch main body is in the locking posture, when the opening / closing body is closed and moved, the latch locking portion slides along the locked portion to move away from the locked portion,
The fitting is characterized in that when the opening / closing body is in the closed position, the latch is in a locking posture and the locking portion is locked to the locked portion.

本発明のラッチ装置によれば、ラッチが非係止姿勢の状態及び係止姿勢の状態で、開閉体を閉じ位置に移動して開閉体の開き移動を規制できる。
しかも、ラッチは軸部とともに被係止部と離れる方向に移動するので、長期間使用しても軸部が変形、損傷することがなく、ラッチが係止姿勢と非係止姿勢とに渡って長期間スムーズに回動するようにできる。 According to the latch device of the present invention, the opening / closing body can be restricted from opening by moving the opening / closing body to the closed position while the latch is in the non-locking posture and the locking posture.
Moreover, since the latch moves in a direction away from the locked portion together with the shaft portion, the shaft portion is not deformed or damaged even when used for a long period of time, and the latch extends between the locking posture and the non-locking posture. It can be rotated smoothly for a long time.

建具としての折れ戸の正面図である。It is a front view of the folding door as joinery. 建具のラッチ装置の取付部分を拡大した詳細断面図である。It is the detailed sectional view which expanded the attachment part of the latch device of joinery. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. ラッチ本体部を分解した一側斜視図である。It is the one side perspective view which decomposed | disassembled the latch main-body part. ラッチ本体部を分解した他側斜視図である。It is the other side perspective view which decomposed | disassembled the latch main-body part. 内ケースとラッチを外ケースに収容する動作説明図である。It is operation | movement explanatory drawing which accommodates an inner case and a latch in an outer case. ラッチ装置の動作説明図である。It is operation | movement explanatory drawing of a latch apparatus. ラッチ装置の動作説明図である。It is operation | movement explanatory drawing of a latch apparatus. 第２の実施形態を示すラッチ本体部の斜視図である。It is a perspective view of the latch main-body part which shows 2nd Embodiment. ラッチ本体部の平面図である。It is a top view of a latch main-body part. ラッチ装置の動作説明図である。It is operation | movement explanatory drawing of a latch apparatus. 図１０のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 内ケースの斜視図である。It is a perspective view of an inner case.

図１に示すように、枠体１０に開閉体２０を開閉自在に取り付けて建具としてある。
図１に示す建具は浴室用の折れ戸で、枠体１０は上枠１１と下枠１２と左右一方の縦枠１３と左右他方の縦枠１４を方形状に連結してある。
開閉体２０は、左右一方の障子２０ａと左右他方の障子２０ｂを有し、左右一方の障子２０ａの中央側の縦框２１と左右他方の障子２０ｂの中央側の縦框２２を折曲自在に連結してある。
左右一方の障子２０ａの戸尻側の縦框２３を、上枠１１、下枠１２に面外方向に回動自在に支持し、左右他方の障子２０ｂの戸先側の縦框２４を上枠１１、下枠１２に沿って面内方向に摺動自在に支承している。 As shown in FIG. 1, an opening / closing body 20 is attached to a frame body 10 so as to be freely opened and closed.
The joinery shown in FIG. 1 is a folding door for a bathroom, and a frame 10 is formed by connecting an upper frame 11, a lower frame 12, a left and right vertical frame 13, and a left and right vertical frame 14 in a rectangular shape.
The open / close body 20 has one left and right shoji 20a and the other left and right shoji 20b, and can freely bend a vertical saddle 21 on the center side of the left and right shoji 20a and a vertical hook 22 on the center side of the other left and right shoji 20b. It is connected.
The vertical rod 23 on the door butt side of one of the left and right shojis 20a is supported on the upper frame 11 and the lower frame 12 so as to be rotatable in the out-of-plane direction, and the vertical rod 24 on the door end side of the other left and right shoji 20b is supported on the upper frame. 11, and is slidably supported in the in-plane direction along the lower frame 12.

そして、把手２５を持って左右他方の障子２０ｂに開き方向の操作力を付与し、その障子２０ｂを面外方向における枠体１０から離れる方向（浴室側）に引くことで、左右一方の障子２０ａと左右他方の障子２０ｂがその両方の障子を連結する連結部において浴室側に突出するように折れ曲がり、左右一方の障子２０ａが戸尻側の縦框２３を中心として浴室側に回動し、左右他方の障子２０ｂの戸先側の縦框２４が上枠１１、下枠１２に沿って面内方向の左右一方側に摺動することで、両方の障子２０ａ，２０ｂは重なり合って面外方向一側方である浴室側に張り出した開き位置に移動する。
前述の状態から把手２５を持って左右他方の障子２０ｂに閉じ方向の操作力を付与し、その障子２０ｂを面内方向の左右他方側に引張りながら脱衣室側に向けて押すことで、両方の障子２０ａ，２０ｂは図１に示す閉じ位置に移動する。
本発明の建具は、折れ戸に限ることはなく、開き戸、引き戸、内開き窓、外開き窓、内倒し窓、外倒し窓などでも良い。
つまり、本発明の建具は、開閉体２０が開き位置と閉じ位置に亘って移動する建具であれば良い。 Then, by holding the handle 25, an operating force in the opening direction is applied to the other left and right shoji 20b, and the shoji 20b is pulled in a direction away from the frame 10 in the out-of-plane direction (bathroom side). The left and right shoji 20b bends so that it protrudes toward the bathroom at the connecting portion that connects both shojis, and the left and right shoji 20a rotates to the bathroom side around the vertical rod 23 on the door butt side. The sliding rod 24 on the door end side of the other shoji 20b slides along the upper frame 11 and the lower frame 12 to the left and right sides in the in-plane direction, so that both shojis 20a and 20b overlap each other in the out-of-plane direction. Move to the open position overhanging on the side of the bathroom.
By holding the handle 25 from the above-mentioned state and applying an operating force in the closing direction to the other left and right shoji 20b, and pulling the shoji 20b toward the left and right other side in the in-plane direction, The shojis 20a and 20b move to the closed position shown in FIG.
The joinery of the present invention is not limited to a folding door, and may be a hinged door, a sliding door, an inner window, an outer window, an inner window, an outer window, or the like.
That is, the joinery of the present invention may be a joinery in which the opening / closing body 20 moves between the open position and the closed position.

左右一方の障子２０ａの中央側の縦框２１と上枠１１とに亘ってラッチ装置３０が取り付けてある。
このラッチ装置３０は、両方の障子２０ａ，２０ｂが閉じ位置のときに、所定の風圧力などによって勝手に開くことがないようにしたり、把手２５を所定の操作力で引いても開き側に移動しようとして両方の障子２０ａ，２０ｂが開き側に移動しないようにして、開き移動を規制し、把手２５を所定の操作力よりも大きな操作力で引くことで両方の障子２０ａ，２０ｂが開き側に移動するようにしてある。
このラッチ装置３０は、中央側の縦框２１と下枠１２に亘って取り付けても良いし、他方の中央側の縦框２２と上枠１１とに亘って取り付けても良い。 A latch device 30 is attached across the vertical rod 21 and the upper frame 11 on the center side of the left and right shoji 20a.
The latch device 30 prevents the door 20 from being opened by a predetermined wind pressure or the like when both the shojis 20a and 20b are in the closed position, or moves to the open side even when the handle 25 is pulled with a predetermined operating force. Trying to prevent both of the shojis 20a and 20b from moving to the opening side, restricting the opening movement, and pulling the handle 25 with an operating force larger than a predetermined operating force, both shojis 20a and 20b are moved to the opening side. It is supposed to move.
The latch device 30 may be attached across the central vertical gutter 21 and the lower frame 12, or may be attached across the other central vertical gutter 22 and the upper frame 11.

図２は建具（折れ戸）のラッチ装置３０を取り付けた部分の拡大詳細断面図で、一方の障子２０ａ（縦框２１）を仮想線で図示し、枠体１０（上枠１１）を実線で図示している。
図２において、開閉体２０は面外方向（図２の左右方向）に開閉し、面外方向一側が閉じ側、面外方向他側が開き側であるので、面外方向を開閉方向、面外方向一側を開閉方向閉じ側、面外方向他側を開閉方向開き側とする。また、図２における上下方向が面内方向である。
図２に示すように、ラッチ装置３０は、一方の障子２０ａの中央側の縦框２１（つまり、開閉体２０）に設けられるラッチ本体部３０ａと、上枠１１（つまり、枠体１０）に設けられる被係止部３０ｂを備え、このラッチ本体部３０ａと被係止部３０ｂは図２に示す閉じ状態において面内方向である上下方向に対向している。 FIG. 2 is an enlarged detailed cross-sectional view of a portion of the fitting (folding door) to which the latch device 30 is attached. One shoji 20a (vertical fence 21) is shown in phantom lines, and the frame 10 (upper frame 11) is shown in solid lines. It is shown.
In FIG. 2, the opening / closing body 20 opens and closes in the out-of-plane direction (the left-right direction in FIG. 2), and one side in the out-of-plane direction is the closed side and the other side in the out-of-plane direction is the open side. One direction is defined as the opening / closing direction closing side, and the other side in the out-of-plane direction is defined as the opening / closing direction opening side. Further, the vertical direction in FIG. 2 is the in-plane direction.
As shown in FIG. 2, the latch device 30 is provided on the latch main body 30 a provided on the vertical rod 21 (that is, the opening / closing body 20) on the center side of the one shoji 20 a and the upper frame 11 (that is, the frame body 10). The latch main body 30a and the latched portion 30b are opposed to each other in the vertical direction, which is the in-plane direction, in the closed state shown in FIG.

図２に示すように、上枠１１の面内方向の内側面１５は、その上枠１１の開閉方向に向かい、その内側面１５の開閉方向の中間に、前述の被係止部３０ｂである上レール１６を長手方向に連続して有し、その上枠１１の開閉方向閉じ側（図２の右側）には内側面１５よりも下方に突出した戸当り部１７を有し、この戸当り部１７に気密材１８が開閉方向開き側（図２の左側）に向けて開閉体２０である障子２０ａ，２０ｂと対向して取り付けてある。   As shown in FIG. 2, the inner side surface 15 in the in-plane direction of the upper frame 11 faces the opening / closing direction of the upper frame 11, and is the above-described locked portion 30 b in the middle of the opening / closing direction of the inner side surface 15. An upper rail 16 is continuously provided in the longitudinal direction, and a door closing portion 17 protruding downward from the inner side surface 15 is provided on the closing side (right side in FIG. 2) of the upper frame 11 in the opening / closing direction. An airtight member 18 is attached to the portion 17 so as to face the shojis 20a and 20b as the opening / closing body 20 toward the opening / closing direction opening side (left side in FIG. 2).

次に、ラッチ装置３０の詳細を説明する。なお、ラッチ本体部３０ａにおける被係止部３０ｂに接近及び離隔する方向を面内方向とし、被係止部３０ｂに接近する方向を面内方向一側方、離隔する方向を面内方向他側方、被係止部３０ｂ側を面内方向一側、被係止部３０ｂと反対側を面内方向他側として説明する。
ラッチ本体部３０ａは、そのラッチ本体部３０ａを縦框２１に取り付けるための本体部材、例えば外ケース３１と、この外ケース３１に面内方向（上下方向）に移動自在に設けたラッチ取付部材、例えば内ケース３２と、この内ケース３２に開閉方向に向けて係止姿勢と非係止姿勢とに亘って回動自在で、面内方向に移動自在に設けたラッチ３３と、内ケース３２に対して面内方向に移動可能で、ラッチ３３を係止姿勢、非係止姿勢に保持するラッチ保持部材３４と、このラッチ保持部材３４を被係止部３０ｂに接近する方向である面内方向一側方（上方）に移動するばね３５を備えている。 Next, details of the latch device 30 will be described. The direction in which the latch main body 30a approaches and separates the locked portion 30b is the in-plane direction, the direction that approaches the locked portion 30b is one side in the in-plane direction, and the direction that separates is the other in-plane direction. On the other hand, the locked portion 30b side is described as one side in the in-plane direction, and the opposite side to the locked portion 30b is described as the other side in the in-plane direction.
The latch main body 30a includes a main body member for attaching the latch main body 30a to the vertical shaft 21, for example, an outer case 31, and a latch mounting member provided on the outer case 31 so as to be movable in an in-plane direction (vertical direction), For example, an inner case 32, a latch 33 provided in the inner case 32 so as to be rotatable in a locking position and a non-locking position in the opening / closing direction and movably in an in-plane direction, A latch holding member 34 that can move in the in-plane direction and holds the latch 33 in the locked posture and the non-locked posture, and an in-plane direction that is a direction in which the latch holding member 34 approaches the locked portion 30b. A spring 35 that moves to one side (upward) is provided.

図２乃至図５に示すように、外ケース３１は開閉方向に対向し、開閉方向と直角方向に向かう第１壁３１ａ、第２壁３１ｂと、開閉方向と直角方向に対向し、開閉方向に向かう第３壁３１ｃ、第４壁３１ｄと、面内方向他側壁３１ｅとで面内方向一側面３１ｆが開口した内ケース取付用の凹部３１ｇを有した筒状で、面内方向他側壁３１ｅには透孔３１ｈが形成してある。
第１壁３１ａが開閉方向閉じ側で、第２壁３１ｂが開閉方向開き側である。 As shown in FIGS. 2 to 5, the outer case 31 faces the opening / closing direction, and faces the first wall 31a and the second wall 31b facing the opening / closing direction at right angles to the opening / closing direction, and faces the opening / closing direction. In the in-plane direction other side wall 31e, it has a cylindrical shape with a concave portion 31g for mounting the inner case in which one side surface 31f in the in-plane direction is opened by the third wall 31c, the fourth wall 31d, and the other side wall 31e in the in-plane direction. Has a through hole 31h.
The first wall 31a is the closing direction closing side, and the second wall 31b is the opening direction opening side.

内ケース３２は、外ケース３１の凹部３１ｇ内に挿入して面内方向に移動自在に支持される基部３６と、この基部３６の面内方向一側部（被係止部３０ｂ側部）に設けたラッチ取付部３７を備えている。
基部３６は開閉方向に対向し、開閉方向と直角方向に向かう第１壁３６ａ、第２壁３６ｂと、この第１壁３６ａと第２壁３６ｂを連結する開閉方向に向かう第３壁３６ｃとでコ字形状で、外ケース３１の凹部３１ｇ内に、その第１壁３１ａ、第２壁３１ｂ、第３壁３１ｃの内面に沿って面内方向に移動自在に挿入される。
外ケース３１の第２壁３１ｂの内面３１ｂ−１は、その面内方向一側寄りにラッチ３３が入り込む溝３１ｂ−２が形成してある。
溝３１ｂ−２は、第２壁３１ｂの内面３１ｂ−１の開閉方向と直角方向の中間に形成され、溝３１ｂ−２は面内方向一側面３１ｆに開口している。
溝３１ｂ−２の開閉方向と直角方向の両側に第２壁３１ｂの内面３１ｂ−１が存在し、その内面３１ｂ−１は面内方向他側壁３１ｅまで連続している。 The inner case 32 is inserted into the concave portion 31g of the outer case 31 and is supported so as to be movable in the in-plane direction, and one side in the in-plane direction of the base 36 (the side to be locked 30b). A provided latch mounting portion 37 is provided.
The base portion 36 is opposed to the opening and closing direction, and includes a first wall 36a and a second wall 36b that are perpendicular to the opening and closing direction, and a third wall 36c that is connected to the first wall 36a and the second wall 36b and that faces the opening and closing direction. It is U-shaped and is inserted into the recess 31g of the outer case 31 so as to be movable in the in-plane direction along the inner surfaces of the first wall 31a, the second wall 31b, and the third wall 31c.
The inner surface 31b-1 of the second wall 31b of the outer case 31 is formed with a groove 31b-2 into which the latch 33 enters, closer to one side in the in-plane direction.
The groove 31b-2 is formed in the middle in the direction perpendicular to the opening / closing direction of the inner surface 31b-1 of the second wall 31b, and the groove 31b-2 opens on one side surface 31f in the in-plane direction.
The inner surface 31b-1 of the second wall 31b exists on both sides of the groove 31b-2 in the direction perpendicular to the opening and closing direction, and the inner surface 31b-1 continues to the other side wall 31e in the in-plane direction.

ラッチ取付部３７は、開閉方向に向かい、開閉方向と直角方向に間隔を置いて対向した一対のラッチ取付壁３７ａ，３７ａを備え、この一対のラッチ取付壁３７ａは開閉方向と直角方向に貫通し面内方向の長孔である軸部支承孔３８を有している。
一対のラッチ取付壁３７ａの対向した内面には、軸部支承孔３８の面内方向他側部を、ラッチ取付壁３７ａの開閉方向開き側（基部３６の第２壁３６ｂ側）まで連続する開閉方向に向かう溝３９を有する。この溝３９はラッチ取付壁３７ａの開閉方向開き側ではなく、開閉方向閉じ側（基部３６の第１壁３６ａ側）まで連続するようにしても良い。
ラッチ取付部３７の一対のラッチ取付壁３７ａの開閉方向開き側面３７ａ−１が、外ケース３１の第２壁３１ｂの内面３１ｂ−１における溝３１ｂ−２の開閉方向と直角方向の両側の内面３１ｂ−１に接する。 The latch mounting portion 37 includes a pair of latch mounting walls 37a and 37a facing in the opening / closing direction and facing each other at a right angle to the opening / closing direction, and the pair of latch mounting walls 37a penetrates in the direction perpendicular to the opening / closing direction. It has a shaft support hole 38 that is a long hole in the in-plane direction.
On the opposing inner surfaces of the pair of latch mounting walls 37a, the other side in the in-plane direction of the shaft support hole 38 is opened and closed continuously to the open side in the opening and closing direction of the latch mounting wall 37a (the second wall 36b side of the base 36). It has the groove | channel 39 which goes to a direction. The groove 39 may be continuous to the opening / closing direction closing side (the first wall 36a side of the base portion 36) instead of the opening / closing direction opening side of the latch mounting wall 37a.
Opening direction open side surfaces 37a-1 of the pair of latch mounting walls 37a of the latch mounting portion 37 are inner surfaces 31b on both sides of the inner surface 31b-1 of the second wall 31b of the outer case 31 on both sides in a direction perpendicular to the opening / closing direction of the groove 31b-2. -1.

ラッチ３３の開閉方向と直角方向の厚さは、内ケース３２の一対のラッチ取付壁３７ａ間に挿入する厚さで、その厚さ方向の両側面に、軸部支承孔３８に沿って移動自在で、開閉方向に回動自在に嵌まり合うと共に、溝３９に沿って移動自在な大きさの軸部４０が、開閉方向と直角方向に突出して有する。   The thickness of the latch 33 in the direction perpendicular to the opening / closing direction is a thickness inserted between the pair of latch mounting walls 37a of the inner case 32, and is movable along the shaft support holes 38 on both side surfaces in the thickness direction. Thus, the shaft portion 40, which fits in the opening / closing direction so as to be rotatable and can move along the groove 39, projects in a direction perpendicular to the opening / closing direction.

ラッチ３３は、軸部４０よりも面内方向一側寄り（被係止部３０ｂ寄り）における開閉方向閉じ側に係止部４１を有し、軸部４０よりも面内方向一側寄りにおける開閉方向開き側にトリガ部４２を有し、ラッチ３３の軸部４０よりも面内方向一側寄り部分は係止部４１とトリガ部４２とでほぼＶ字形状もしくは凹形状となっている。
ラッチ３３の軸部４０よりも面内方向他側寄り（被係止部３０ｂと反対側寄り）における開閉方向閉じ側に第１保持部である第１凹部４３を有し、軸部４０よりも面内方向他側寄りにおける開閉方向開き側に第２保持部である第２凹部４４を有している。 The latch 33 has a locking portion 41 on the closing side in the opening / closing direction nearer to one side in the in-plane direction than the shaft portion 40 (closer to the locked portion 30b), and opens / closes closer to one side in the in-plane direction than the shaft portion 40. A trigger portion 42 is provided on the direction opening side, and a portion closer to one side in the in-plane direction than the shaft portion 40 of the latch 33 is substantially V-shaped or concavely formed by the locking portion 41 and the trigger portion 42.
The first recessed portion 43 serving as the first holding portion is provided on the closing side in the opening and closing direction closer to the other side in the in-plane direction than the shaft portion 40 of the latch 33 (closer to the opposite side to the locked portion 30 b). A second recess 44 as a second holding portion is provided on the opening side in the opening / closing direction near the other side in the in-plane direction.

ラッチ３３はラッチ取付部３７に、その軸部４０を軸部支承孔３８に嵌め合うことで、係止姿勢と非係止姿勢とに渡って開閉方向に回動自在で、面内方向に移動自在に取り付けられる。   The latch 33 is fitted to the latch mounting portion 37 and the shaft portion 40 is fitted to the shaft support hole 38 so that the latch 33 can be rotated in the opening / closing direction and moved in the in-plane direction between the locking posture and the non-locking posture. Can be attached freely.

そして、ラッチ３３はラッチ取付部３７に次のようにして取り付ける。
ラッチ３３の両側面から突出した軸部４０を一対のラッチ取付壁３７ａの溝３９に嵌め合わせてラッチ３３を一対のラッチ取付壁３７ａ間に挿入し、軸部４０を溝３９に沿って移動することで軸部支承孔３８の面内方向他側部に嵌め合わせ、軸部４０を軸部支承孔３８で面内方向に移動自在で、開閉方向に回動自在に支承し、ラッチ３３をラッチ取付部３７に係止姿勢と非係止姿勢に回動自在で、面内方向に移動自在に取り付ける。 The latch 33 is attached to the latch attachment portion 37 as follows.
The shaft portions 40 protruding from both side surfaces of the latch 33 are fitted into the grooves 39 of the pair of latch mounting walls 37a, the latch 33 is inserted between the pair of latch mounting walls 37a, and the shaft portion 40 is moved along the grooves 39. Thus, it is fitted to the other side portion in the in-plane direction of the shaft portion supporting hole 38, the shaft portion 40 can be moved in the in-plane direction by the shaft portion supporting hole 38, and can be pivoted in the opening and closing direction, and the latch 33 is latched. It is attached to the attachment portion 37 so as to be rotatable in a locking posture and a non-locking posture and movable in an in-plane direction.

このように、軸部４０を備えたラッチ３３を一対のラッチ取付壁３７ａ間に、その軸部４０で面内方向に移動自在で、係止姿勢と非係止姿勢に回動自在に取り付けできるから、軸部４０をラッチ３３に一体に設けることができる。
例えば、樹脂材などで軸部４０を備えたラッチ３３を製作できる。
しかも、溝３９を設けたことにより軸部４０を軸部支承孔３８に挿入させ易く、軸部４０を有したラッチ３３を容易に取り付けることができる。 In this manner, the latch 33 having the shaft portion 40 can be moved between the pair of latch mounting walls 37a in the in-plane direction by the shaft portion 40 and can be rotatably mounted in the locking posture and the non-locking posture. Therefore, the shaft portion 40 can be provided integrally with the latch 33.
For example, the latch 33 including the shaft portion 40 can be manufactured using a resin material or the like.
Moreover, by providing the groove 39, the shaft portion 40 can be easily inserted into the shaft portion support hole 38, and the latch 33 having the shaft portion 40 can be easily attached.

ラッチ３３を回動自在とする軸部４０がラッチ３３と一体であることにより、その軸部４０がラッチ３３から抜ける方向に移動することがないので、軸部４０が外ケース３１に接触してラッチ３３の面内方向の移動不良となり、ラッチ３３が後述する非係止姿勢で被係止部３０ｂに噛み込み、一方の障子２０ａが閉じ位置でロックされる状態、つまり閉じ込め状態を防止できる。   Since the shaft portion 40 that allows the latch 33 to rotate is integrated with the latch 33, the shaft portion 40 does not move in a direction to come out of the latch 33, so that the shaft portion 40 contacts the outer case 31. It is possible to prevent the latch 33 from moving in the in-plane direction, the latch 33 biting into the locked portion 30b in a non-locking posture, which will be described later, and the one shoji 20a being locked at the closed position, that is, the confined state.

軸部４０は、ラッチ３３と別体とし、ラッチ３３に固着しても良い。
つまり、ラッチ３３に軸部４０を一体的に設ければ良い。
なお、軸部４０を軸とし、ラッチ３３に軸挿通孔を形成し、軸を軸支承孔から軸挿通孔に挿通し、カシメ等の手段で軸が軸挿通孔から抜けないように固定しても良い。 The shaft portion 40 may be separated from the latch 33 and fixed to the latch 33.
That is, the shaft portion 40 may be provided integrally with the latch 33.
The shaft portion 40 is used as a shaft, a shaft insertion hole is formed in the latch 33, the shaft is inserted from the shaft support hole into the shaft insertion hole, and the shaft is fixed by means such as caulking so that the shaft does not come out of the shaft insertion hole. Also good.

ラッチ保持部材３４の開閉方向と直角方向の厚さは一対のラッチ取付壁３７ａ間に挿入する厚さである。
ラッチ保持部材３４は内ケース３２の基部３６の第１壁３６ａの内面と第２壁３６ｂの内面に接する面内方向他側に向かう開閉方向一対のガイド片５０，５０を有し、この一対のガイド片５０で内ケース３２（基部３６）に面内方向に移動自在に支承される。
ラッチ保持部材３４の面内方向一側部には、ラッチ３３の第１凹部４３が嵌まり合うことでラッチ３３を前述の非係止姿勢に位置決めして保持すると共に、ラッチ３３の第２凹部４４が嵌まり合うことでラッチ３３を非係止姿勢に位置決めして保持する突部５１を有する。 The thickness of the latch holding member 34 in the direction perpendicular to the opening / closing direction is a thickness inserted between the pair of latch mounting walls 37a.
The latch holding member 34 has a pair of guide pieces 50, 50 in the opening / closing direction toward the other side in the in-plane direction contacting the inner surface of the first wall 36 a and the inner surface of the second wall 36 b of the base portion 36 of the inner case 32. The guide piece 50 is supported by the inner case 32 (base portion 36) so as to be movable in the in-plane direction.
The first recess 43 of the latch 33 is fitted to one side in the in-plane direction of the latch holding member 34 so that the latch 33 is positioned and held in the aforementioned non-locking posture, and the second recess of the latch 33 is held. 44 has the protrusion 51 which positions and holds the latch 33 in the non-locking posture by fitting.

ラッチ保持部材３４は、ばね３５を支承するための杆体５２を面内方向他側に向けて有し、この杆体５２の先端部は二又状に分岐して一対の係止片５３としてある。
この杆体５２にばね３５を挿通して取り付け、その状態でラッチ保持部材３４を内ケース３２内に挿入し、内ケース３２を外ケース３１の凹部３１ｇ内に挿入することで、杆体５２の一対の係止片５３を外ケース３１の面内方向他側壁３１ｅの透孔３１ｈから突出することで、ばね３５がラッチ保持部材３４の面内方向他側部と外ケース３１の面内方向他側壁３１ｅに接し、ばね３５のばね力でラッチ保持部材３４とともに杆体５２が面内方向一側方（上方）に移動し、一対の係止片５３が外ケース３１の面内方向他側壁３１ｅの透孔３１ｈの周縁に接することでラッチ保持部材３４、ラッチ３３及び内ケース３２が図２、図３に示す状態となる。
具体的には、内ケース３２は外ケース３１の被係止部３０ｂと対向した一側面である面内方向一側面３１ｆから突出した第１の位置に保持され、ラッチ３３は内ケース３２に、係止部４１及びトリガ部４２が内ケース３２の被係止部側である面内方向一側方に突出した突出位置に保持される。
これにより、ラッチ３３は被係止部３０ｂに接近する位置である面内方向一側位置に保持される。 The latch holding member 34 has a housing 52 for supporting the spring 35 facing the other side in the in-plane direction, and the front end of the housing 52 is bifurcated to form a pair of locking pieces 53.
A spring 35 is inserted into and attached to the housing 52, and in that state, the latch holding member 34 is inserted into the inner case 32, and the inner case 32 is inserted into the recess 31 g of the outer case 31. By projecting the locking piece 53 from the through hole 31h of the in-plane direction other side wall 31e of the outer case 31, the spring 35 is moved in the in-plane direction other side portion of the latch holding member 34 and the in-plane direction other side wall 31e of the outer case 31. The casing 52 together with the latch holding member 34 is moved to one side in the in-plane direction (upward) by the spring force of the spring 35, and the pair of locking pieces 53 are through holes in the in-plane other side wall 31 e of the outer case 31. The latch holding member 34, the latch 33, and the inner case 32 are brought into the state shown in FIGS. 2 and 3 by contacting the peripheral edge of 31h.
Specifically, the inner case 32 is held at a first position protruding from one in-plane direction side surface 31f that is one side surface facing the locked portion 30b of the outer case 31, and the latch 33 is attached to the inner case 32. The locking part 41 and the trigger part 42 are held at a protruding position protruding in one side in the in-plane direction that is the locked part side of the inner case 32.
Thereby, the latch 33 is held at one position in the in-plane direction that is a position approaching the locked portion 30b.

つまり、図３に示すようにラッチ保持部材３４の突部５１が一対のラッチ取付壁３７ａ間に挿入すると共に、ラッチ保持部材３４の開閉方向と直角方向に突出した一側突部５４、他側突部５５が一対のラッチ取付壁３７ａの面内方向他側面に接して内ケース３２がばね３５で面内方向一側方（上方）に移動され、基部３６の第３壁３６ｃに設けたストッパ３６ｄが、外ケース３１の第３壁３１ｃに形成したストッパ受部３１ｉに当接して内ケース３２を前述の第１の位置である面内方向一側位置（上方位置）に位置決めすると共に、一側突部５４、他側突部５５がラッチ取付壁３７ａに接することで内ケース３２を外ケース３１に対して面内方向一側位置（上方位置）に位置決めし、内ケース３２の外ケース３１の面内方向一側面３１ｆからの最大突出量を規定の値とする。
ラッチ３３はラッチ保持部材３４（突部５１）で前述の突出位置である面内方向一側位置（作動位置）に保持される。 That is, as shown in FIG. 3, the protrusion 51 of the latch holding member 34 is inserted between the pair of latch mounting walls 37a, and the one side protrusion 54 protruding in the direction perpendicular to the opening / closing direction of the latch holding member 34, the other side A stopper provided on the third wall 36c of the base portion 36 with the projection 55 in contact with the other side surface in the in-plane direction of the pair of latch mounting walls 37a and the inner case 32 being moved one side (upward) in the in-plane direction by the spring 35. 36d contacts the stopper receiving portion 31i formed on the third wall 31c of the outer case 31 to position the inner case 32 at one position (upward position) in the in-plane direction which is the first position described above. When the side protrusion 54 and the other side protrusion 55 are in contact with the latch mounting wall 37a, the inner case 32 is positioned at one side in the in-plane direction (upward position) with respect to the outer case 31, and the outer case 31 of the inner case 32 is positioned. From one side surface 31f in the in-plane direction The maximum protrusion amount to a prescribed value.
The latch 33 is held by the latch holding member 34 (protrusion 51) at one position (operating position) in the in-plane direction, which is the aforementioned protruding position.

また、杆体５２の面内方向一側部がラッチ保持部材３４の一側突部５４、他側突部５５で内ケース３２に支持され、杆体５２の面内方向他側部が外ケース３１の面内方向他側壁３１ｅで支持されているから、この杆体５２に挿入して設けたばね３５を安定して支持できる。   In addition, one side in the in-plane direction of the casing 52 is supported by the inner case 32 by the one side protrusion 54 and the other side protrusion 55 of the latch holding member 34, and the other in-plane direction of the casing 52 is supported by the outer case 31. Since it is supported by the other side wall 31e in the in-plane direction, the spring 35 inserted into the housing 52 can be stably supported.

一側突部５４は内ケース３２の基部３６の第１壁３６ａ、第２壁３６ｂの内面における第３壁３６ｃ寄りのガイド突条３６ｅに沿って摺動ガイドされ、他側突部５５は開閉方向の長さが一側突部５４よりも長く、内ケース３２の基部３６の第１壁３６ａ、第２壁３６ｂの内面に沿って摺動ガイドされる。
このように、一側突部５４、他側突部５５はラッチ保持部材３４を内ケース３２に沿って面内方向に移動するガイドの役目を有している。 The one side protrusion 54 is slidably guided along the guide protrusion 36e near the third wall 36c on the inner surface of the first wall 36a and the second wall 36b of the base 36 of the inner case 32, and the other side protrusion 55 is opened and closed. The length in the direction is longer than that of the one-side protrusion 54, and is slidably guided along the inner surfaces of the first wall 36 a and the second wall 36 b of the base portion 36 of the inner case 32.
Thus, the one side protrusion 54 and the other side protrusion 55 serve as a guide for moving the latch holding member 34 in the in-plane direction along the inner case 32.

しかも、他側突部５５の開閉方向長さが一側突部５４の開閉方向の長さよりも長く、一対のガイド突条３６ｅ間の開閉方向寸法よりも大きいので、ラッチ保持部材３４は一側突部５４が第３壁３６ｃ側となる向き、つまり突部５１が図２に示すように開閉方向開き側となる向きとして内ケース３２内に挿入できるが、ラッチ保持部材３４を他側突部５５が第３壁３６ｃ側となる向きとして内ケース３２内に挿入しようとすると、他側突部５５が内ケース３２のガイド突条３６ｅ間に挿入できずに干渉してしまう。
したがって、一側突部５４、他側突部５５はラッチ保持部材３４を内ケース３２内に挿入する向きを規定し、異なる向きで挿入することを防止する役目をも有する。 In addition, since the length of the open / close direction of the other side protrusion 55 is longer than the length of the open / close direction of the one side protrusion 54 and is larger than the open / close direction dimension between the pair of guide protrusions 36e, the latch holding member 34 The protrusion 54 can be inserted into the inner case 32 so that the protrusion 54 faces the third wall 36c, that is, the protrusion 51 opens in the opening / closing direction as shown in FIG. If an attempt is made to insert 55 into the inner case 32 in a direction toward the third wall 36c, the other side protrusion 55 cannot be inserted between the guide protrusions 36e of the inner case 32 and interferes.
Therefore, the one-side protrusion 54 and the other-side protrusion 55 define the direction in which the latch holding member 34 is inserted into the inner case 32, and also have a role of preventing the insertion in different directions.

内ケース３２が図２、図３に示す面内方向一側位置のときには、内ケース３２の面内方向他端面３２ａと外ケース３１の面内方向他側壁３１ｅは面内方向に離れ、その離隔寸法Ｓ１は内ケース３２（ラッチ取付部３７）の外ケース３１の面内方向一側面３１ｆからの突出寸法Ｓ２よりも大きい。
これにより、内ケース３２をばね３５に抗して面内方向他側方に移動することで、内ケース３２を外ケース３１内に収容した第２の位置である面内方向他側位置とすることができる。
つまり、内ケース３２が外ケース３１の面内方向一側面３１ｆから突出しない状態とすることができる。 When the inner case 32 is positioned at one side in the in-plane direction shown in FIGS. 2 and 3, the other in-plane direction end surface 32a of the inner case 32 and the other in-plane direction side wall 31e of the outer case 31 are separated in the in-plane direction. The dimension S1 is larger than the projecting dimension S2 of the inner case 32 (latch mounting portion 37) from the one side surface 31f in the in-plane direction of the outer case 31.
Accordingly, the inner case 32 is moved to the other side in the in-plane direction against the spring 35, thereby setting the inner case 32 to the other side position in the in-plane direction which is the second position accommodated in the outer case 31. be able to.
That is, the inner case 32 can be in a state in which it does not protrude from the side surface 31 f in the in-plane direction of the outer case 31.

内ケース３２、ラッチ３３及びラッチ保持部材３４が図２、図３に示す面内方向一側位置のときのラッチ３３の面内方向一側部と内ケース３２（ラッチ取付部３７）の面内方向一側部との間の面内方向寸法、つまりラッチ３３の内ケース３２からの最大突出寸法Ｓ３は、軸部４０の軸部支承孔３８に沿う最大移動量Ｓ４、つまりラッチ３３の内ケース３２に対する面内方向他側に向かう最大移動量Ｓ４よりも小さい。
これにより、ラッチ３３を内ケース３２とともに外ケース３１内に収容された収容位置まで移動することができる。 When the inner case 32, the latch 33, and the latch holding member 34 are located at one side in the in-plane direction shown in FIGS. 2 and 3, the in-plane direction one side of the latch 33 and the in-plane of the inner case 32 (latch mounting portion 37) An in-plane direction dimension between one side in the direction, that is, a maximum projecting dimension S3 of the latch 33 from the inner case 32 is a maximum movement amount S4 along the shaft support hole 38 of the shaft 40, that is, the inner case of the latch 33. 32 is smaller than the maximum moving amount S4 toward the other side in the in-plane direction.
Thereby, the latch 33 can be moved together with the inner case 32 to the accommodation position accommodated in the outer case 31.

このようであるから、図６（ａ）に示すように、内ケース３２、ラッチ３３及びラッチ保持部材３４が面内方向一側位置で、ラッチ３３が非係止姿勢の状態から、ラッチ３３（トリガ部４２）を矢印で示すように面内方向他側方に押すと、ラッチ３３がラッチ保持部材３４とともにばね３５を圧縮しながら内ケース３２に対して面内方向他側方に移動し、ラッチ３３と内ケース３２が面内方向に同一位置となる。
この後は、ラッチ３３と内ケース３２が外ケース３１に対して面内方向他側方に移動し、内ケース３２とラッチ３３を図６（ｂ）に示すように外ケース３１内に収容し、内ケース３２とラッチ３３が外ケース３１の面内方向一側面３１ｆから突出しないようにできる。 Thus, as shown in FIG. 6A, the inner case 32, the latch 33, and the latch holding member 34 are positioned at one side in the in-plane direction, and the latch 33 is in the unlocked posture. When the trigger portion 42) is pushed to the other side in the in-plane direction as indicated by an arrow, the latch 33 moves to the other side in the in-plane direction with respect to the inner case 32 while compressing the spring 35 together with the latch holding member 34, The latch 33 and the inner case 32 are in the same position in the in-plane direction.
Thereafter, the latch 33 and the inner case 32 move to the other side in the in-plane direction with respect to the outer case 31, and the inner case 32 and the latch 33 are accommodated in the outer case 31 as shown in FIG. The inner case 32 and the latch 33 can be prevented from projecting from the in-plane direction side surface 31 f of the outer case 31.

したがって、図１に示す障子２０ａ，２０ｂのように、上部にラッチ本体部３０ａを備えた開閉体２０を、建具の運搬や施工時などに天地を逆にして床面に置いた場合に、内ケース３２とラッチ３３が図６（ｂ）に示すように外ケース３１内に収容されるので、開閉体２０を天地逆置き時に内ケース３２、ラッチ３３に大きな負荷を与えることがなく、内ケース３２、ラッチ３３を破損等しないように保護できる。   Therefore, when the opening / closing body 20 provided with the latch body 30a on the upper side is placed on the floor surface with the top and bottom turned upside down during the transportation and construction of the joinery, like the shojis 20a and 20b shown in FIG. Since the case 32 and the latch 33 are accommodated in the outer case 31 as shown in FIG. 6B, the inner case 32 and the latch 33 are not subjected to a large load when the opening / closing body 20 is placed upside down. 32 and latch 33 can be protected from damage.

内ケース３２が外ケース３１の面内方向一側面３１ｆよりも面内方向一側方に突出しているのは、ラッチ３３の軸部４０、つまり回動中心を外ケース３１の面内方向一側面３１ｆ寄りとし、ラッチ３３が係止姿勢と非係止姿勢に回動し易くするためである。   The inner case 32 protrudes to one side in the in-plane direction from the in-plane direction one side surface 31f of the outer case 31 because the shaft portion 40 of the latch 33, that is, the rotation center, is one side surface in the in-plane direction of the outer case 31. This is to make it easier to turn the latch 33 between the locking posture and the non-locking posture.

また、ばね３５にはラッチ保持部材３４の杆体５２が挿通しているので、ラッチ保持部材３４が面内方向に移動する際にばね３５の座屈を防止し、開閉方向振動を抑制するので、ばね３５の自由度が杆体５２で規制され、ばね３５のビビリ音を低減することができる。   Further, since the housing 52 of the latch holding member 34 is inserted into the spring 35, when the latch holding member 34 moves in the in-plane direction, the spring 35 is prevented from buckling and the vibration in the opening / closing direction is suppressed. The degree of freedom of the spring 35 is restricted by the housing 52, and chatter noise of the spring 35 can be reduced.

ラッチ装置の動作を説明する。
図７（ａ）に示すように、ラッチ３３が非係止姿勢の状態で一方の障子２０ａを開閉方向閉じ側に移動したときの動作（通常動作）。
ラッチ３３が非係止姿勢のときには、係止部４１は被係止部３０ｂの面内方向他側面３０ｂ−１よりも面内方向他側に位置し、トリガ部４２は被係止部３０ｂの一方の側面である開閉方向開き側面３０ｂ−２と対向している。
ラッチ保持部材３４の突部５１はラッチ３３の第１凹部４３に嵌まり合っている。 The operation of the latch device will be described.
As shown in FIG. 7 (a), an operation (normal operation) when one of the shojis 20a is moved to the closing side in the opening / closing direction while the latch 33 is in the non-locking posture.
When the latch 33 is in the non-locking posture, the locking part 41 is located on the other side in the in-plane direction than the other side surface 30b-1 in the in-plane direction of the locked part 30b, and the trigger part 42 is on the other side of the locked part 30b. It faces the opening / closing direction opening side surface 30b-2 which is one side surface.
The protrusion 51 of the latch holding member 34 is fitted in the first recess 43 of the latch 33.

一方の障子２０ａを矢印ａで示す開閉方向閉じ側に移動すると、トリガ部４２の開閉方向閉じ側面４２ａが被係止部３０ｂの開閉方向開き側面３０ｂ−２に当接し、一方の障子２０ａの移動とともにラッチ３３は図７（ｂ）に示すように軸部４０を中心として矢印ｂ方向に回転する。
ラッチ３３の回転に追従してラッチ保持部材３４はバネ３５に抗して内ケース３２に対して面内方向他側方に移動し、被係止部３０ｂと離れる When one of the shojis 20a is moved to the closing side of the opening / closing direction indicated by the arrow a, the opening / closing direction closing side surface 42a of the trigger portion 42 comes into contact with the opening / closing direction opening side surface 30b-2 of the locked portion 30b. At the same time, the latch 33 rotates about the shaft portion 40 in the direction of arrow b as shown in FIG.
Following the rotation of the latch 33, the latch holding member 34 moves to the other side in the in-plane direction against the inner case 32 against the spring 35, and is separated from the locked portion 30b.

一方の障子２０ａが図７（ｃ）に示す閉じ位置に移動すると、ラッチ３３は係止姿勢に回動し、係止部４１の開閉方向開き側面４１ａが被係止部３０ｂの他方の側面である開閉方向閉じ側面３０ｂ−３に接すると共に、ラッチ保持部材３４がばね３５で前記面内方向一側位置まで移動し、突部５１がラッチ３３の第２凹部４４に嵌まり合い、ラッチ３３を係止姿勢に位置決めして保持する。   When one of the shojis 20a is moved to the closed position shown in FIG. 7 (c), the latch 33 is rotated to the locking posture, and the opening / closing direction opening side surface 41a of the locking portion 41 is the other side surface of the locked portion 30b. The latch holding member 34 is moved to one position in the in-plane direction by the spring 35 while being in contact with a certain opening / closing direction closed side face 30b-3, and the protrusion 51 is fitted into the second recess 44 of the latch 33, Position and hold in the locking position.

これによって、一方の障子２０ａを閉じ位置において小さな操作力で開き側に移動しないように規制して保持することができる。   Accordingly, one of the shojis 20a can be regulated and held so as not to move to the open side with a small operating force at the closed position.

図８（ａ）に示すように、ラッチ３３が係止姿勢の状態で一方の障子２０ａを開閉方向閉じ側に移動したときの動作（逆折れ時動作）。
ラッチ３３が係止姿勢のときには、ラッチ３３の係止部４１が被係止部３０ｂの面内方向他側面３０ｂ−１よりも面内方向一側寄りに位置し、開閉方向開き側面３０ｂ−２と対向する。
ラッチ保持部材３４の突部５１はラッチ３３の第２凹部４４に嵌まり合い、ラッチ３３を係止姿勢で位置決めして保持する。 As shown in FIG. 8A, an operation when one of the shojis 20a is moved to the closing side in the opening / closing direction while the latch 33 is in the locked posture (an operation at the time of reverse folding).
When the latch 33 is in the locking posture, the locking portion 41 of the latch 33 is positioned closer to one side in the in-plane direction than the other in-plane direction side surface 30b-1 of the locked portion 30b, and the opening / closing direction opening side surface 30b-2. Opposite.
The protrusion 51 of the latch holding member 34 is fitted into the second recess 44 of the latch 33, and the latch 33 is positioned and held in the locking posture.

一方の障子２０ａを矢印ａで示す開閉方向閉じ側に移動すると、ラッチ３３の係止部４１の開閉方向閉じ側面４１ｂが被係止部３０ｂの開閉方向開き側面３０ｂ−２に接し、その開き側面３０ｂ−２に沿って滑りながらラッチ３３は面内方向他側方に移動する。
これにより、ラッチ３３に面内方向他側方に向かう力が負荷し、ラッチ３３はラッチ保持部材３４とともにばね３５を圧縮しながら面内方向他側方に移動する。 When one of the shojis 20a is moved to the closing side in the opening / closing direction indicated by the arrow a, the opening / closing direction closing side surface 41b of the latching portion 41 of the latch 33 is in contact with the opening / closing direction opening side surface 30b-2 of the latched portion 30b. The latch 33 moves to the other side in the in-plane direction while sliding along 30b-2.
As a result, a force toward the other side in the in-plane direction is applied to the latch 33, and the latch 33 moves to the other side in the in-plane direction while compressing the spring 35 together with the latch holding member 34.

そして、一方の障子２０ａが閉じ位置に移動すると、ラッチ３３の係止部４１が被係止部３０ｂの面内方向他側面３０ｂ−１と離れ、ラッチ３３はばね３５の力で面内方向一側方に移動し、ラッチ３３の係止部４１の開閉方向開き側面４１ａが被係止部３０ｂの開閉方向閉じ側面３０ｂ−３に沿って面内方向一側方に移動し、図８（ｃ）に示すようにラッチ３３及びラッチ保持部材３４は前述の面内方向一側位置に移動し、係止部４１の開閉方向開き側面４１ａが被係止部３０ｂの開閉方向閉じ側面３０ｂ−３に接すると共に、ラッチ保持部材３４の突起５１がラッチ３３の第２凹部４４に嵌まり合い、ラッチ３３を係止姿勢に位置決めして保持する。   Then, when one of the shojis 20a moves to the closed position, the latching portion 41 of the latch 33 is separated from the other side surface 30b-1 in the in-plane direction of the latched portion 30b, and the latch 33 is aligned in the in-plane direction by the force of the spring 35. 8c, the opening side surface 41a of the latching portion 41 of the latch 33 is moved sideways in the in-plane direction along the side surface 30b-3 of the latching portion 30b. ), The latch 33 and the latch holding member 34 move to the aforementioned in-plane direction one side position, and the opening / closing direction opening side surface 41a of the locking portion 41 becomes the opening / closing direction closing side surface 30b-3 of the locked portion 30b. At the same time, the protrusion 51 of the latch holding member 34 fits into the second recess 44 of the latch 33 to position and hold the latch 33 in the locking posture.

これによって、通常動作と同様に一方の障子２０ａを閉じ位置において小さな操作力では開き側に移動しないように規制して保持することができる。   Thus, similarly to the normal operation, one of the shojis 20a can be regulated and held so as not to move to the open side with a small operating force at the closed position.

ラッチ３３が図８（ａ）の状態から図８（ｂ）の状態まで面内方向他側方に移動するとき、ラッチ３３の軸部４０は内ケース３２のラッチ取付部３７のラッチ支承孔３８に沿って移動し、その軸部４０に負荷がかかることがない。
したがって、ラッチ装置を長期間使用しても軸部が折れたり、折曲することがなく、ラッチ３３が係止姿勢と非係止姿勢とに渡って長期間スムーズに回動するようにできる。 When the latch 33 moves to the other side in the in-plane direction from the state of FIG. 8A to the state of FIG. 8B, the shaft portion 40 of the latch 33 moves to the latch support hole 38 of the latch mounting portion 37 of the inner case 32. The shaft portion 40 is not loaded.
Therefore, even if the latch device is used for a long period of time, the shaft portion is not broken or bent, and the latch 33 can be smoothly rotated for a long period of time between the locking posture and the non-locking posture.

次に、ラッチ装置の第２実施形態を説明する。
図９と図１０に示すように、外ケース３１の面内方向一側面３１ｆにおける第２壁３１ｂ寄りに突出壁６０を面内方向一側方（上方）に向けて設けてある。
突出壁６０は、ラッチ３３が面内方向一側位置に保持されているときの軸４０よりも面内方向一側方に位置している。
突出壁６０は、開閉方向と直角方向に向かう第１突出壁６１と、第１突出壁６１の開閉方向と直角方向両端部に開閉方向に向けて設けた一対の第２突出壁６２とでコ字形状である。
第１突出壁６１は第２壁３１ｂに面内方向一側方（上方）に向けて設けてある。第１突出壁６１の開閉方の一方側で、ラッチ３３に向かう一側面６１ａは、外ケース３１の第２壁３１ｂの内面３１ｂ−１に形成した溝３１ｂ−２の底面と連続している。
一対の第２突出壁６２は第３壁３１ｃ及び第４壁３１ｄに面内方向一側方（上方）に向けて設けてある。一対の第２突出壁６２の開閉方向と直角方向に対向した一側面６２ａは第３壁３１ｃ、第４壁３１ｄの内面と連続している。 Next, a second embodiment of the latch device will be described.
As shown in FIGS. 9 and 10, a protruding wall 60 is provided toward one side (upward) in the in-plane direction near the second wall 31 b on one in-plane direction side surface 31 f of the outer case 31.
The protruding wall 60 is located on one side in the in-plane direction with respect to the shaft 40 when the latch 33 is held at one side in the in-plane direction.
The projecting wall 60 includes a first projecting wall 61 extending in a direction perpendicular to the opening / closing direction and a pair of second projecting walls 62 provided at both ends of the first projecting wall 61 in a direction perpendicular to the opening / closing direction of the first projecting wall 61. It is a letter shape.
The first protruding wall 61 is provided on the second wall 31b toward one side (upward) in the in-plane direction. On one side of the opening and closing direction of the first protruding wall 61, one side surface 61a toward the latch 33 is continuous with the bottom surface of the groove 31b-2 formed in the inner surface 31b-1 of the second wall 31b of the outer case 31.
The pair of second projecting walls 62 are provided on the third wall 31c and the fourth wall 31d toward one side in the in-plane direction (upward). One side surface 62a facing the opening / closing direction of the pair of second projecting walls 62 in a direction perpendicular to the opening / closing direction is continuous with the inner surfaces of the third wall 31c and the fourth wall 31d.

図１１に示すように、ラッチ３３が係止姿勢の状態で、一方の障子２０ａを開閉方向閉じ側に移動すると、ラッチ３３の係止部４１の開閉方向閉じ側面４１ｂが被係止部３０ｂの開閉方向開き側面３０ｂ−２に接する。
この状態から、一方の障子２０ａを開閉方向閉じ側に移動すると、ラッチ３３は、被係止部３０ｂの開き側面３０ｂ−２に沿って滑りながら軸４０を中心として開閉方向開き側に回動してラッチ保持部材３４とともにばね３５を圧縮しながら面内方向他側方に移動する。
このとき、ラッチ３３は軸４０を中心としてトリガ部４２の開閉方向開き側面４２ｂが突出壁６０の第１突出壁６１の内側面６１ａに接するまで回動し、その後はラッチ３３は回動せずにトリガ部４２の開き側面４２ｂが第１突出壁６１の内側面６１ａ及び外ケース３１の第２壁３１ｂの溝３１ｂ−２に沿って面内方向他側方に移動する。 As shown in FIG. 11, when one of the shojis 20a is moved to the closing direction closing side while the latch 33 is in the locking posture, the opening / closing direction closing side surface 41b of the locking part 41 of the latch 33 is the locking part 30b. It contacts the opening / closing direction opening side surface 30b-2.
From this state, when one of the shojis 20a is moved to the closing side in the opening / closing direction, the latch 33 rotates about the shaft 40 toward the opening / closing direction opening side while sliding along the opening side surface 30b-2 of the locked portion 30b. Then, while compressing the spring 35 together with the latch holding member 34, it moves to the other side in the in-plane direction.
At this time, the latch 33 rotates about the shaft 40 until the opening side surface 42b of the trigger portion 42 contacts the inner side surface 61a of the first protruding wall 61 of the protruding wall 60, and thereafter the latch 33 does not rotate. The opening side surface 42b of the trigger portion 42 moves to the other side in the in-plane direction along the inner side surface 61a of the first protruding wall 61 and the groove 31b-2 of the second wall 31b of the outer case 31.

これにより、ラッチ３３が係止姿勢の状態で一方の障子２０ａを開閉方向閉じ側に移動したときのラッチ３３の軸４０を中心とする開閉方向開き側への回動角度が、突出壁６０を設けていない外ケースを用いたラッチ装置のラッチの回動角度よりも小さい。   As a result, the rotation angle of the latch 33 toward the opening / closing direction around the shaft 40 when the one shoji 20a is moved to the closing direction closing side when the latch 33 is in the locked posture causes the protruding wall 60 to move. It is smaller than the rotation angle of the latch of the latch device using the outer case that is not provided.

このようであるから、係止姿勢のラッチ３３を小さな力で面内方向他側方に移動することができる。
つまり、突出壁６０がない第１実施形態の外ケース３１であると、係止姿勢のラッチ３３は、図８（ｂ）に示すように、トリガ部４２の開き側面４２ｂが外ケース３１の第２壁３１ｂの溝３１ｂ−２に接するまで軸４０を中心として開閉方向開き側に回動するので、ラッチ３３の回動角度が、突出壁６０を有した外ケース３１と比べて大きくなるから、係止姿勢のラッチ３３を面内方向他側方に移動する力は、突出壁６０がある場合よりも大きくなる。 Thus, the latch 33 in the locking posture can be moved to the other side in the in-plane direction with a small force.
That is, in the outer case 31 of the first embodiment without the protruding wall 60, the latch 33 in the locking posture has the opening side surface 42b of the trigger portion 42 as the first case of the outer case 31, as shown in FIG. Since the pivoting angle of the latch 33 is larger than that of the outer case 31 having the projecting wall 60, the pivoting angle of the latch 33 is larger than the outer case 31 having the protruding wall 60. The force for moving the latch 33 in the locking posture to the other side in the in-plane direction is larger than when the protruding wall 60 is present.

したがって、ラッチ３３が係止姿勢の状態で、一方の障子２０ａを閉じ位置まで軽い力で移動することができる。   Therefore, it is possible to move one of the shojis 20a to the closed position with a light force while the latch 33 is in the locked posture.

また、上部にラッチ本体部３０ａを備えた開閉体２０を、建具の運搬や施工時などに天地を逆にして床面に置いた場合、突出壁６０が床面に接し、突出壁６０が開閉体２０の荷重を主として支えるので、ラッチ３３、内ケース３２等を保護することができる。   Further, when the opening / closing body 20 provided with the latch body 30a at the top is placed on the floor surface with the top and bottom reversed during transportation or construction of the fitting, the protruding wall 60 is in contact with the floor surface, and the protruding wall 60 is opened and closed. Since the load of the body 20 is mainly supported, the latch 33, the inner case 32, and the like can be protected.

図１２と図１３に示すように、内ケース３２に突起７０を設け、突起７０を外ケース３１の１つの内ケース接触面に接することで、内ケース３２が外ケース３１の凹部３１ｇ内で開閉方向にガタつき音を発生することを抑制している。
実施形態では、内ケース３２のラッチ取付部３７の一対のラッチ取付壁３７ａ,３７ａの開閉方向開き側面３７ａ−１に突起７０が設けてある。
突起７０は、ラッチ取付壁３７ａの開き側面３７ａ−１から突出し、その突出した面内方向の形状が半円形状で、ラッチ取付壁３７ａの開き側面３７ａ−１の面内方向中間部分にのみ設けてある。 As shown in FIGS. 12 and 13, the inner case 32 is provided with a projection 70, and the projection 70 is brought into contact with one inner case contact surface of the outer case 31, so that the inner case 32 opens and closes in the recess 31 g of the outer case 31. Suppressing generation of a rattling sound in the direction.
In the embodiment, the protrusion 70 is provided on the side surface 37a-1 that opens in the opening and closing direction of the pair of latch mounting walls 37a and 37a of the latch mounting portion 37 of the inner case 32.
The protrusion 70 protrudes from the opening side surface 37a-1 of the latch mounting wall 37a, the protruding in-plane direction shape is semicircular, and is provided only in the in-plane direction intermediate portion of the opening side surface 37a-1 of the latch mounting wall 37a. It is.

ラッチ取付壁３７ａの開閉方向開き側寄りには長孔７１が形成してある。長孔７１は面内方向に長く、ラッチ取付壁３７ａの開閉方向と直角方向の両側面に開口している。
ラッチ取付壁３７ａにおける開き側面３７ａ−１と長孔７１との間の部分３７ａ−２は、開閉方向の寸法（肉厚）が小さな板状で、その部分３７ａ−２は開閉方向に弾性変形し易い。
突起７０は、ラッチ取付壁３７ａの開き側面３７ａ−１と長孔７１との間の部分３７ａ−２における面内方向中間の開き側面３７ａ−１に設けてある。
つまり、ラッチ取付壁３７ａの突起７０の裏側に空隙（長孔７１）を設けることで、ラッチ取付壁３７ａの突起７０を設けた部分に柔軟性をもたせている。 A long hole 71 is formed near the opening side of the latch mounting wall 37a in the opening and closing direction. The long hole 71 is long in the in-plane direction, and opens on both side surfaces in a direction perpendicular to the opening / closing direction of the latch mounting wall 37a.
A portion 37a-2 between the open side surface 37a-1 and the long hole 71 in the latch mounting wall 37a is a plate shape with a small dimension (thickness) in the opening / closing direction, and the portion 37a-2 is elastically deformed in the opening / closing direction. easy.
The protrusion 70 is provided on the opening side surface 37a-1 in the middle in the in-plane direction of the portion 37a-2 between the opening side surface 37a-1 of the latch mounting wall 37a and the long hole 71.
That is, by providing a gap (long hole 71) on the back side of the protrusion 70 of the latch mounting wall 37a, the portion of the latch mounting wall 37a where the protrusion 70 is provided is made flexible.

このようであるから、内ケース３２がラッチ３３、ラッチ保持部材３４とともに外ケース３１の凹部３１ｇ内を面内方向に移動するときに、突部７０が外ケース３１の第２壁３１ｂの内面３１ｂ−１に接しながら移動し、内ケース３２が開閉方向の開き側、閉じ側に交互に動いて外ケース３１の凹部３１ｇに繰り返して当たることで音を発生することを抑制する。
しかも、突起７０はラッチ取付壁３７ａの柔軟性を有した部分に設けてあり、突起７０が第２壁３１ｂの内面３１ｂ−１に接触することで、内ケース３２の移動抵抗が大きくなることがなく、内ケース３２はスムーズに面内方向に移動することができる。 Thus, when the inner case 32 moves together with the latch 33 and the latch holding member 34 in the recess 31g of the outer case 31 in the in-plane direction, the projecting portion 70 becomes the inner surface 31b of the second wall 31b of the outer case 31. -1 is moved, and the inner case 32 is alternately moved to the opening side and the closing side in the opening / closing direction to repeatedly generate contact with the concave portion 31g of the outer case 31 to suppress the generation of sound.
In addition, the protrusion 70 is provided on the flexible portion of the latch mounting wall 37a, and when the protrusion 70 contacts the inner surface 31b-1 of the second wall 31b, the movement resistance of the inner case 32 may increase. The inner case 32 can move smoothly in the in-plane direction.

この実施の形態のラッチ本体部３０ａは、外ケース３１と内ケース３２とラッチ３３とラッチ保持部材３４とバネ３５とで構成しているから、ラッチ本体部３０ａの部品点数を少なく、コストを安くできると共に、組立性を向上できる。
本発明のラッチ装置は建具に限らず、収納棚や家具などにも使用することができる。 Since the latch main body 30a of this embodiment is constituted by the outer case 31, the inner case 32, the latch 33, the latch holding member 34, and the spring 35, the number of parts of the latch main body 30a is reduced and the cost is reduced. It is possible to improve assemblability.
The latch device of the present invention can be used not only for joinery but also for storage shelves and furniture.

１０…枠体、２０…開閉体、２０ａ…一方の障子、３０…ラッチ装置、３０ａ…ラッチ本体部、３０ｂ…被係止部、３１…外ケース（本体部）、３２…内ケース（ラッチ取付部材）、３３…ラッチ、３４…ラッチ保持部材、３５…ばね、３８…軸支承孔、４０…軸部、４１…係止部、４２…トリガ部、６０…突出壁、７０…突起。   DESCRIPTION OF SYMBOLS 10 ... Frame, 20 ... Opening / closing body, 20a ... One shoji, 30 ... Latch device, 30a ... Latch main part, 30b ... Locked part, 31 ... Outer case (main part), 32 ... Inner case (latch attachment) Member), 33 ... latch, 34 ... latch holding member, 35 ... spring, 38 ... shaft support hole, 40 ... shaft portion, 41 ... locking portion, 42 ... trigger portion, 60 ... projecting wall, 70 ... projection.

Claims (4)

開閉体に設けられるラッチ本体部と、枠体に設けられる被係止部とを備え、ラッチ本体部が被係止部に係止することで閉じ位置の開閉体の開き移動を規制するラッチ装置であって、
前記ラッチ本体部は、係止部とトリガ部を有したラッチを備え、
該ラッチは、軸部を中心として係止姿勢と非係止姿勢に回動すると共に、軸部とともに被係止部に接近及び離隔する方向に移動自在で、かつばねで被係止部に接近する位置に保持され、
前記ラッチが係止姿勢のときには、係止部が被係止部に係止し、非係止姿勢のときには、係止部が被係止部と離れ、かつトリガ部が被係止部の一方の側面と対向し、
前記ラッチが非係止姿勢で開閉方向閉じ側に移動すると、トリガ部が被係止部の一方の側面に接してラッチが係止姿勢に向けて回動し、閉じ位置でラッチが係止姿勢に回動して係止部が被係止部の他方の側面に接して係止し、
前記ラッチが係止姿勢で開閉方向閉じ側に移動すると、係止部が被係止部の一方の側面に沿って滑ることでラッチが軸部とともにばねに抗して被係止部と離隔する方向に移動し、閉じ位置でラッチがばねで前記被係止部に接近する位置に移動して係止部が被係止部の他方の側面に接して係止し、
前記ラッチ本体部は、本体部材と、この本体部材に設けられ被係止部に接近及び離隔する方向の長孔である軸部支承孔を有したラッチ取付部材を備え、
前記ラッチは軸部を一体的に有し、この軸部を前記軸部支承孔に回動及び被係止部に接近及び離隔する方向に移動可能に嵌め合わせてラッチを係止姿勢と非係止姿勢に回動自在で、被係止部に接近及び離隔する方向に移動自在とし、
前記ラッチをばねにより前記被係止部に接近する位置に保持したことを特徴とするラッチ装置。 A latch device that includes a latch main body portion provided on the opening and closing body and a locked portion provided on the frame body, and restricts the opening movement of the opening and closing body in the closed position by the latch main body portion being locked to the locked portion. Because
The latch main body includes a latch having a locking portion and a trigger portion,
The latch pivots about a shaft portion to a locking posture and a non-locking posture, and is movable in a direction approaching and separating from the locked portion together with the shaft portion, and approaches the locked portion with a spring. Held in a position to
When the latch is in the locking posture, the locking portion is locked to the locked portion, and when the latch is in the non-locking posture, the locking portion is separated from the locked portion, and the trigger portion is one of the locked portions. Facing the side of
When the latch moves to the closing side in the opening / closing direction in the non-locking position, the trigger part comes into contact with one side surface of the locked part and the latch rotates toward the locking position, and the latch is locked in the closed position. And the locking part contacts and locks the other side surface of the locked part,
When the latch moves to the closing side in the opening / closing direction in the locking posture, the latching part slides along one side surface of the locked part, so that the latch is separated from the locked part against the spring together with the shaft part. moved in the direction, and the locking portion latch is moved to a position closer to the engaged portion by a spring in a closed position in contact with the other side of the engaging portion engaging,
The latch main body includes a main body member and a latch mounting member having a shaft support hole that is a long hole in a direction of approaching and separating from the locked portion provided in the main body member,
The latch has a shaft portion integrally, and the shaft portion is fitted to the shaft portion support hole so as to be able to rotate and move toward and away from the locked portion. It can be rotated in the stopping position, and can be moved in the direction approaching and separating from the locked part,
A latch device, wherein the latch is held at a position approaching the locked portion by a spring . 前記ラッチ取付部材は本体部材に、本体部材の被係止部と対向した一側面から突出した第１の位置と、本体部材に収容した第２の位置とに渡って被係止部に接近及び離隔する方向に移動自在で、ばねにより前記第１の位置に保持して設け、
前記ラッチはラッチ取付部材に、係止部及びトリガ部がラッチ取付部材よりも被係止部側に突出した突出位置と、係止部及びトリガ部がラッチ取付部材に収容した収納位置とに渡って被係止部に接近及び離隔する方向に移動自在で、ばねにより突出位置に保持して設けた請求項１に記載のラッチ装置。 The latch mounting member approaches the locked portion over the main body member over a first position protruding from one side facing the locked portion of the main body member and a second position accommodated in the main body member. Freely movable in a separating direction, provided by being held in the first position by a spring,
The latch extends over the latch mounting member from a protruding position where the locking portion and the trigger portion protrude to the locked portion side of the latch mounting member, and a storage position where the locking portion and the trigger portion are accommodated in the latch mounting member. The latch device according to claim 1, wherein the latch device is movable in a direction approaching and separating from the locked portion and is held at a protruding position by a spring . 前記ラッチ取付部材に、ラッチを係止姿勢及び非係止姿勢に位置決めして保持するラッチ保持部材を被係止部に接近及び離隔する方向に移動自在に設け、
このラッチ保持部材に被係止部に接近及び離隔する方向に向かう杆体を設け、この杆体に挿通して設けたばねでラッチ保持部材を被係止部側に移動することで、ラッチ取付部材を第１の位置に保持し、ラッチを突出位置に保持した請求項２に記載のラッチ装置。 The latch mounting member is provided with a latch holding member that positions and holds the latch in a locking posture and a non-locking posture so as to be movable toward and away from the locked portion,
The latch holding member is provided with a housing that moves in a direction approaching and separating from the locked portion, and the latch holding member is moved to the locked portion side by a spring that is inserted through the housing to move the latch mounting member to the first position. The latch device according to claim 2, wherein the latch device is held at a position 1 and the latch is held at a protruding position . 枠体に開閉体を開閉自在に取り付けた建具であって、A fitting with an openable and closable opening / closing body attached to a frame,
前記開閉体に、請求項１〜３いずれか１項に記載のラッチ本体部を取り付け、前記枠体に、請求項１〜３いずれか１項に記載の被係止部を設け、The latch main body part according to any one of claims 1 to 3 is attached to the opening / closing body, and the locked part according to any one of claims 1 to 3 is provided to the frame body,
前記開閉体が開き位置のときに、ラッチ本体部のラッチが非係止姿勢の状態で、開閉体を閉じ移動するとラッチのトリガ部が被係止部に接して係止姿勢に向けて回動し、ラッチ本体部のラッチが係止姿勢の状態で、開閉体を閉じ移動するとラッチの係止部が被係止部に沿って滑ることで被係止部と離れる方向に移動し、When the opening / closing body is in the open position, when the opening / closing body is moved while the latch of the latch main body is in the non-locking posture, the trigger portion of the latch contacts the locked portion and rotates toward the locking posture. Then, when the latch of the latch main body is in the locking posture, when the opening / closing body is closed and moved, the latch locking portion slides along the locked portion to move away from the locked portion,
前記開閉体が閉じ位置のときに、前記ラッチが係止姿勢で、その係止部が被係止部に係止するようにしたことを特徴とする建具。A fitting, wherein when the opening / closing body is in a closed position, the latch is in a locking posture and the locking portion is locked to the locked portion.
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