JP2006328638A - Crescent lock device - Google Patents

Crescent lock device Download PDF

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Publication number
JP2006328638A
JP2006328638A JP2005149148A JP2005149148A JP2006328638A JP 2006328638 A JP2006328638 A JP 2006328638A JP 2005149148 A JP2005149148 A JP 2005149148A JP 2005149148 A JP2005149148 A JP 2005149148A JP 2006328638 A JP2006328638 A JP 2006328638A
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locking
lever
locking device
opening
lock
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JP2005149148A
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JP4721332B2 (en
Inventor
Atsushi Miyasaka
淳 宮坂
Tamotsu Kato
有 加藤
Teruo Konoshima
照雄 此島
Hiromitsu Yamada
浩光 山田
Nobuko Miwa
信子 三輪
Tsutomu Kajiki
勉 梶木
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Shin Nikkei Co Ltd
USC Corp
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Shin Nikkei Co Ltd
USC Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crescent lock device which can prevent a leading end of a false-latching avoiding member and an outside opening/closing body from being worn out or damaged, by surely and automatically preventing the locked device from being locked false by a simple constitution. <P>SOLUTION: A lock disc 16 interlocked with a shaft 12 of a lever 13 is provided in a locking device body 11; a cam plate 19 for being oscillated via a link mechanism 20 is provided on the lock disc 16; and a leading end 15b of a trigger is provided in such a manner as to freely protrude/recede in the inward/outward direction of the locking device body, in a state in which the trigger 15 is linked to the cam plate. When both the opening/closing bodies are in normal locking positions, the leading end of the trigger is protruded outward from the inside of the locking device body, so as to abut on a trigger retainer plate 5 and allow the turning operation of the lever in a locking direction. When both the opening/closing bodies are not in the normal locking positions, the leading end of the trigger protruding to the outside of the locking device body recedes into the locking device body by the oscillation of the cam plate. The receding of the leading end of the trigger makes the lock disc locked by the cam plate, so as to inhibit the turning operation of the lever in the locking direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、建物の窓や扉等の内側及び外側開閉体に取り付けられるクレセント錠装置（レバー式施錠装置）に関し、特に、空掛け状態を確実に防止することができるクレセント錠装置に係わる。   The present invention relates to a crescent locking device (lever type locking device) attached to inner and outer opening / closing bodies such as windows and doors of a building, for example, and more particularly to a crescent locking device capable of reliably preventing an empty state. .

例えば、内障子および外障子が正常閉鎖位置にあるとき以外にはハンドル（レバー）が施錠方向に回動しないようにしたクレセント錠が提案されている（例えば、特許文献１，２参照）。このクレセント錠は、外障子側へ突出した状態でハンドルの回動を阻止している突出部を有しており、内障子および外障子を閉鎖したときに該突出部が外障子の枠部に接触して没入することにより、ハンドルの回動阻止状態が解除されるように構成されている。   For example, a crescent lock is proposed in which the handle (lever) is prevented from rotating in the locking direction except when the inner and outer obstacles are in the normal closed position (see, for example, Patent Documents 1 and 2). This crescent lock has a protrusion that prevents the handle from rotating in a state of protruding to the side of the external obstacle, and when the internal and external obstacles are closed, the protrusion becomes the frame part of the external obstacle. It is comprised so that the rotation prevention state of a handle may be cancelled | released by contacting and immersing.

実公昭５７−５２３０３号公報Japanese Utility Model Publication No. 57-52303

実開昭５８−２５４６７号公報Japanese Utility Model Publication No. 58-25467

しかしながら、前記従来のクレセント錠では、内障子と外障子を開閉する度に前記突出部が外障子の枠部等に接触するため、突出部や外障子の枠部等が摩耗したり損傷し易く、耐久性の低下を招いていた。   However, in the above-mentioned conventional crescent lock, since the protrusion comes into contact with the frame part or the like of the shoji every time the inner and outer children are opened and closed, the protrusion or the frame part or the like of the obstacle is easily worn or damaged. This has led to a decrease in durability.

本発明は、かかる現状に鑑み創案されたものであって、所謂空掛け防止を簡易な構成で確実かつ自動的に防止することができ、空掛け防止部材の先端部および外側開閉体の摩耗や損傷を確実に防止することができる空掛け防止可能なクレセント錠装置を提供することを目的とする。   The present invention has been devised in view of the current situation, and can prevent so-called idling prevention with a simple configuration reliably and automatically, and can prevent wear of the tip of the idling prevention member and the outer opening / closing body. It is an object of the present invention to provide a crescent lock device capable of preventing damage and reliably preventing emptying.

上記目的を達成するため、請求項１の発明は、内側開閉体に固定され、レバーを有した係止金具を軸を介して回動自在に取り付けると共に空掛け防止部材を設けた施錠装置本体と、この施錠装置本体の前記係止金具に対向する位置の外側開閉体に設けられたフック金具及び空掛け防止受け部材とを備え、前記内側開閉体と前記外側開閉体とが正常な施錠位置にある時に、前記レバーの回動操作により前記係止金具を前記フック金具に係止・離脱させて施錠・解錠すると共に、前記両開閉体が正常な施錠位置にない時に、前記空掛け防止部材により前記レバーの施錠方向の回動操作を阻止するようにしたクレセント錠装置において、前記施錠装置本体内に前記軸に連動するロック部材を設けると共に、該ロック部材にリンク機構を介して揺動するカム部材を設け、このカム部材に前記空掛け防止部材を連係させて該空掛け防止部材の先端部を前記施錠装置本体の内外に進退動自在に設け、前記両開閉体が正常な施錠位置にある時に、前記空掛け防止部材の先端部を前記施錠装置本体内より外側に突出させて前記空掛け防止受け部材に当接させ、この空掛け防止部材の先端部をそれ以上突出させないようにして前記カム部材がロック位置まで移動することを阻止し、前記レバーの施錠方向の回動操作を許容するように構成したことを特徴とする。   In order to achieve the above object, the invention according to claim 1 is a locking device main body fixed to the inner opening / closing body, rotatably attached with a locking bracket having a lever via a shaft, and provided with an anti-hanging member. A hook fitting provided on the outer opening / closing body at a position facing the locking fitting of the locking device main body and an empty hanging prevention receiving member, and the inner opening / closing body and the outer opening / closing body are in a normal locking position. At a certain time, the locking member is locked / unlocked by locking / disengaging the locking member with the hook member by rotating the lever, and when the both opening / closing bodies are not in a normal locking position, In the crescent lock device that prevents the lever from rotating in the locking direction, a lock member interlocking with the shaft is provided in the locking device main body, and the lock member is swung via a link mechanism. A cam member is provided, and the anti-hanging member is linked to the cam member so that the tip of the anti-hanging member can be moved forward and backward in and out of the main body of the locking device. At one time, the tip of the anti-hanging member protrudes outward from the inside of the locking device main body to abut against the anti-hanging receiving member so that the tip of the anti-hanging member does not protrude any further. The cam member is configured to be prevented from moving to a lock position and to allow the lever to rotate in the locking direction.

また、請求項２の発明は、内側開閉体に固定され、レバーを有した係止金具を軸を介して回動自在に取り付けると共に空掛け防止部材を設けた施錠装置本体と、この施錠装置本体の前記係止金具に対向する位置の外側開閉体に設けられたフック金具及び空掛け防止受け部材とを備え、前記内側開閉体と前記外側開閉体とが正常な施錠位置にある時に、前記レバーの回動操作により前記係止金具を前記フック金具に係止・離脱させて施錠・解錠すると共に、前記両開閉体が正常な施錠位置にない時に、前記空掛け防止部材により前記レバーの施錠方向の回動操作を阻止するようにしたクレセント錠装置において、前記施錠装置本体内に前記軸に連動するロック部材を設けると共に、該ロック部材にリンク機構を介して揺動するカム部材を設け、このカム部材に前記空掛け防止部材を連係させて該空掛け防止部材の先端部を前記施錠装置本体の内外に進退動自在に設け、前記両開閉体が正常な施錠位置にある時に、前記空掛け防止部材の先端部を前記施錠装置本体内より外側に突出させて前記空掛け防止受け部材に当接させ、この空掛け防止部材の先端部をそれ以上突出させないようにして前記カム部材がロック位置まで移動することを阻止し、前記レバーの施錠方向の回動操作を許容する一方、前記両開閉体が正常な施錠位置にない時に、前記施錠装置本体の外側に突出した前記空掛け防止部材の先端部は前記空掛け防止受け部材に当接することなく突出し、前記カム部材の揺動を許容し、このカム部材の揺動により前記空掛け防止部材の先端部を前記施錠装置本体内に後退させると共に、前記カム部材が前記ロック部材をロックして前記レバーの施錠方向の回動操作を阻止するように構成したことを特徴とする。   According to a second aspect of the present invention, there is provided a locking device main body fixed to the inner opening / closing body, rotatably attached with a locking bracket having a lever via a shaft, and provided with an anti-hanging member, and the locking device main body A hook fitting provided on an outer opening / closing body at a position facing the locking fitting and an anti-hanging receiving member, and when the inner opening / closing body and the outer opening / closing body are in a normal locking position, the lever The locking bracket is locked / unlocked by locking / releasing the locking bracket to / from the hook bracket by the turning operation of the lever, and the lever is locked by the emptying prevention member when the both opening / closing bodies are not in a normal locking position. In the crescent lock device configured to prevent rotational operation in the direction, a lock member that interlocks with the shaft is provided in the lock device body, and a cam member that swings via a link mechanism is provided in the lock member. When the anti-hanging member is linked to the cam member and the tip of the anti-hanging member is provided so as to be able to move forward and backward in and out of the locking device main body, the emptying member is in the normal locking position. The cam member is locked so that the tip of the hook preventing member protrudes outward from the inside of the locking device main body and abuts against the hook preventing receiving member, and the tip of the hook preventing member is not further protruded. The anti-hanging member that protrudes to the outside of the locking device main body while preventing the lever from moving to a position and allowing the pivoting operation of the lever in the locking direction while the both opening and closing bodies are not in a normal locking position. The tip of the protrusion protrudes without coming into contact with the anti-hanging receiving member, allows the cam member to swing, and the cam member swings to retract the tip of the emptying preventing member into the locking device body. Let In, wherein the cam member is configured to block the locking direction of the rotating operation of the lock member locks to said lever.

請求項１の発明によれば、内側開閉体と外側開閉体とが正常な施錠位置にある時に、空掛け防止部材の先端部を施錠装置本体内より外側に突出させて空掛け防止受け部材に当接させ、それ以上突出させないようにしてカム部材がロック位置まで移動するのを阻止し、レバーの施錠方向の回動操作を許容するようにしたことにより、内側開閉体側のレバーの係止金具を外側開閉体側のフック金具に簡単かつ確実にロックすることができる。即ち、空掛け防止部材の先端部は常に出ているのではなく、施錠するためにレバーを回動させた時にのみ空掛け防止部材の先端部を突出させることができる。   According to the first aspect of the present invention, when the inner opening / closing body and the outer opening / closing body are in the normal locking position, the tip of the emptying prevention member is protruded outward from the inside of the locking device main body to become the emptying prevention receiving member. The locking member of the lever on the inner opening / closing body side is made by preventing the cam member from moving to the locked position by allowing it to contact and not projecting any further, and allowing the lever to rotate in the locking direction. Can be easily and reliably locked to the hook fitting on the outer opening / closing body side. That is, the tip of the anti-hanging member does not always protrude, and the tip of the anti-hanging member can be protruded only when the lever is rotated for locking.

また、請求項２の発明によれば、両開閉体が正常な施錠位置にない時に、施錠装置本体の外側に突出した空掛け防止部材の先端部は空掛け防止受け部材に当接することなく突出し、カム部材の揺動を許容し、このカム部材の揺動により空掛け防止部材の先端部を施錠装置本体内に後退させると共に、カム部材がロック部材をロックしてレバーの施錠方向の回動操作を阻止するようにしたことにより、内側開閉体側のレバーの係止金具の空掛けを確実に防止することができる。この場合に、空掛け防止部材の先端部はカム部材の揺動により施錠装置本体内に後退して外側に突出することがないため、レバーを回動してロック状態で内側及び外側開閉体を移動させても空掛け防止部材の先端部が外側開閉体に当たることがなく、空掛け防止部材および外側開閉体等の摩耗や破損を確実に防止することができる。即ち、レバーをロック位置まで回動した場合、空掛け防止部材の先端部は引っ込むようにして空掛け防止部材の先端部および外側開閉体等の摩耗や破損を確実に防止することができる。   According to the invention of claim 2, when both the opening and closing bodies are not in the normal locking position, the tip of the emptying prevention member protruding outside the locking device main body protrudes without coming into contact with the emptying prevention receiving member. The cam member is allowed to swing, and the cam member swings to retract the tip of the emptying prevention member into the locking device body, and the cam member locks the lock member to rotate the lever in the locking direction. By preventing the operation, it is possible to reliably prevent the latch fitting of the lever on the inner opening / closing body side from hanging. In this case, the leading end portion of the anti-hanging member does not retreat into the locking device main body due to the swing of the cam member and does not protrude outward. Even if it is moved, the tip of the emptying prevention member does not hit the outer opening / closing body, and it is possible to reliably prevent wear and breakage of the emptying prevention member and the outer opening / closing member. That is, when the lever is rotated to the lock position, the tip of the emptying prevention member is retracted, so that the wear and breakage of the tip of the emptying prevention member and the outer opening / closing member can be reliably prevented.

以下、本発明の一実施形態を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態のクレセント錠装置の取付状態を示す引き違い戸の正面図、図２は同クレセント錠装置のレバー開状態の内部構造を示す説明図、図３は同クレセント錠装置の要部の拡大説明図、図４は同クレセント錠装置の要部の斜視図、図５〜図９は同クレセント錠装置の正常な施錠状態までの手順を示す説明図、図１０は同レバーの閉状態を示す説明図、図１１〜図１６は同クレセント錠装置の空掛け防止状態までの手順を示す説明図である。   FIG. 1 is a front view of a sliding door showing an attached state of a crescent lock device according to an embodiment of the present invention, FIG. 2 is an explanatory view showing an internal structure of a lever open state of the crescent lock device, and FIG. FIG. 4 is a perspective view of the main part of the crescent lock device, FIGS. 5 to 9 are explanatory views showing the procedure up to the normal locking state of the crescent lock device, and FIG. Explanatory drawing which shows the closed state of a lever, FIGS. 11-16 is explanatory drawing which shows the procedure to the hung prevention state of the crescent lock device.

図１〜図１６に示すように、クレセント錠装置（レバー式施錠装置）１０は、サッシ等の引き違い戸１の内障子（内側開閉体）２の枠部２ａに固定され、レバー１３を有した係止金具１４を軸１２を介して回動自在に取り付けると共に、トリガー（空掛け防止部材）１５をスライド移動自在に設けた施錠装置本体１１と、この施錠装置本体１１の係止金具１４に対向する位置の外障子（外側開閉体）３の枠部３ａに固定されたフック金具４及び該フック金具４に併設されたトリガー受け板（空掛け防止受け部材）５とを備え、内障子２の枠部２ａと外障子３の枠部３ａとが重なり合う正常な施錠位置にある時に、レバー１３の回動操作により係止金具１４をフック金具４のフック片部４ａに係止・離脱させて施錠・解錠すると共に、両枠部２ａ，３ａが正常な施錠位置にない時に、トリガー１５及び後述するロックディスク（ロック部材）１６及びリンク機構２０を介してレバー１３の施錠方向の回動操作を阻止するようになっている。   As shown in FIGS. 1 to 16, a crescent lock device (lever type locking device) 10 is fixed to a frame portion 2 a of an inner door (inner opening / closing body) 2 of a sliding door 1 such as a sash and has a lever 13. The locking bracket 14 is rotatably attached via the shaft 12, and the locking device body 11 provided with a trigger (empty hanging prevention member) 15 is slidably movable, and the locking bracket 14 of the locking device body 11 is attached to the locking device body 11. A hook metal fitting 4 fixed to the frame 3a of the outer obstacle (outer opening / closing body) 3 at the opposite position, and a trigger receiving plate (empty hanging prevention receiving member) 5 attached to the hook metal fitting 4, are provided. When the lever 2 is in the normal locking position where the frame 2a and the frame 3a of the outer panel 3 are in the normal locking position, the locking metal 14 is locked and detached from the hook piece 4a of the hook metal 4 by turning the lever 13. Lock and unlock both frames 2 , 3a is adapted to prevent the rotating operation of the locking direction of the lever 13 through the time, the locking disc (locking member) 16 and a link mechanism 20 to trigger 15 and will be described later is not in the normal locked position.

図２及び図３に示すように、施錠装置本体１１は箱形に形成してあり、その内部に軸１２を突出させると共に回動自在に支持してある。この軸１２にはロックディスク（ロック部材）１６を固定してあると共に、ドライブ体２２を回転自在に支持してある。このドライブ体２２はワッシャ２７を介して抜け止め自在に取り付けてある。図４に示すように、ロックディスク１６の上部には大径歯部１６ａを一体形成してある。また、ドライブ体２２の下部には小径歯部２２ｂを一体突出形成してある。これらロックディスク１６の大径歯部１６ａ及びドライブ体２２の小径歯部２２ｂは、施錠装置本体１１に軸１８を介して回転自在に支持された二段ギヤ１７の小径歯部１７ａ及び大径歯部１７ｂにそれぞれ噛合している。この二段ギヤ１７の下段の小径歯部１７ａと上段の大径歯部１７ｂは一体形成してある。この下段の小径歯部１７ａの歯数は例えば３４になっていると共に、上段の大径歯部１７ｂの歯数は例えば４４になっている。さらに、ロックディスク１６の大径歯部１６ａの歯数は例えば３４になっていると共に、ドライブ体２２の小径歯部２２ｂの歯数は例えば２４になっている。これらにより、ドライブ体２２はロックディスク１６と同様に軸１２に直接固定されておらず、二段ギヤ１７を介してロックディスク１６に連動しているため、例えば、上記歯数の比である４４：２４のギヤ比で動きに差が出るようになっている。   As shown in FIGS. 2 and 3, the locking device main body 11 is formed in a box shape, and the shaft 12 protrudes and is rotatably supported therein. A lock disk (lock member) 16 is fixed to the shaft 12 and a drive body 22 is rotatably supported. The drive body 22 is attached via a washer 27 so as to be prevented from coming off. As shown in FIG. 4, a large-diameter tooth portion 16 a is integrally formed on the upper portion of the lock disk 16. Further, a small-diameter tooth portion 22 b is integrally formed at the lower portion of the drive body 22. The large-diameter tooth portion 16a of the lock disc 16 and the small-diameter tooth portion 22b of the drive body 22 are formed by the small-diameter tooth portion 17a and the large-diameter tooth of the two-stage gear 17 that are rotatably supported by the locking device body 11 via the shaft 18. The portions 17b mesh with each other. The lower-stage small-diameter portion 17a and the upper-stage large-diameter tooth portion 17b of the two-stage gear 17 are integrally formed. The number of teeth of the lower-stage small-diameter portion 17a is 34, for example, and the number of teeth of the upper-stage large-diameter portion 17b is 44, for example. Further, the number of teeth of the large diameter tooth portion 16a of the lock disk 16 is 34, for example, and the number of teeth of the small diameter tooth portion 22b of the drive body 22 is 24, for example. As a result, the drive body 22 is not directly fixed to the shaft 12 like the lock disk 16 but is linked to the lock disk 16 via the two-stage gear 17. : The difference in movement comes out with a gear ratio of 24.

また、図２及び図３に示すように、施錠装置本体１１内には、後述するリンク機構２０を介してロックディスク１６に連係するカム板（カム部材）１９を支軸２１に揺動自在に支持してある。そして、このカム板１９のＶ字状のカム溝１９ａにトリガー１５の円柱状のピン１５ａを摺動自在にさせてあり、このカム板１９が支軸２１を介して揺動することによりトリガー１５の先端部１５ｂが施錠装置本体１１の内外に進退動するようになっている。   As shown in FIGS. 2 and 3, a cam plate (cam member) 19 that is linked to the lock disk 16 via a link mechanism 20, which will be described later, is swingable around the support shaft 21 in the locking device main body 11. I support it. A columnar pin 15a of the trigger 15 is slidable in a V-shaped cam groove 19a of the cam plate 19, and the trigger 15 is swung by the cam plate 19 swinging via a support shaft 21. The distal end portion 15b is advanced and retracted in and out of the locking device main body 11.

そして、図５〜図９に示すように、内，外障子２，３の両枠部２ａ，３ａが正常な施錠位置にある時に、トリガー１５の先端部１５ｂを施錠装置本体１１の側壁の開口部１１ａより外側に突出させてトリガー受け板５に当接させることで、カム板１９の揺動を阻止して該カム板１９がロック位置まで移動することを阻止し、レバー１３の施錠方向Ａの回動操作を許容するようになっている。また、図１，図１１〜図１６に示すように、内，外障子２，３の両枠部２ａ，３ａが正常な施錠位置にない時に、施錠装置本体１１の外側に突出したトリガー１５の先端部１５ｂをカム板１９の揺動により該施錠装置本体１１内に後退させ、この後退途中または後退後で、図１５に示すように、カム板１９の先端の円弧状の凸部１９ｂがロックディスク１６の円弧状の凹部１６ｂを係止し、即ち、カム板１９がロックディスク１６をロックしてレバー１３の施錠方向Ａの回動操作を阻止するようになっている。   As shown in FIGS. 5 to 9, when both the frame portions 2 a and 3 a of the inner and outer shoji 2 and 3 are in the normal locking position, the distal end portion 15 b of the trigger 15 is opened in the side wall of the locking device body 11. By projecting outward from the portion 11a and abutting against the trigger receiving plate 5, the cam plate 19 is prevented from swinging and the cam plate 19 is prevented from moving to the locked position, and the lever 13 is locked in the locking direction A. Is allowed to rotate. As shown in FIGS. 1 and 11 to 16, when both the frame portions 2 a and 3 a of the inner and outer shojis 2 and 3 are not in the normal locking position, the trigger 15 protruding outside the locking device main body 11 is provided. The distal end portion 15b is retracted into the locking device main body 11 by swinging the cam plate 19, and the arc-shaped convex portion 19b at the distal end of the cam plate 19 is locked as shown in FIG. The arcuate recess 16b of the disk 16 is locked, that is, the cam plate 19 locks the lock disk 16 to prevent the lever 13 from rotating in the locking direction A.

図２〜図４に示すように、リンク機構２０は、軸１２に回転自在に支持されると共に、両側に規制部２２ａ，２２ａを有した略半円形のドライブ体２２と、カム板１９を揺動自在に支持した支軸２１に揺動自在に支持されると共に、ドライブ体２２の両側の規制部２２ａ，２２ａに当接・離反自在にされたリンクカム２３と、このリンクカム２３の中央の凹部２３ｂに一端２４ａを係止させて該リンクカム２３を所定方向に付勢すると共に、他端２４ｂをトリガー１５の円弧状の凸部１５ｃに係止させて該トリガー１５の先端部１５ｂを施錠装置本体１１の外側に突出する方向に付勢する捩りコイルバネ２４と、施錠装置本体１１の係止部１１ｂに一端２５ａを係止させると共に、他端２５ｂをカム板１９の底辺部１９ｃに係止させて該カム板１９を矢印Ｄ方向に付勢する捩りコイルバネ２５とで構成されている。   As shown in FIGS. 2 to 4, the link mechanism 20 is rotatably supported by the shaft 12 and swings the substantially semicircular drive body 22 having the restricting portions 22 a and 22 a on both sides, and the cam plate 19. A link cam 23 that is supported by a support shaft 21 that is movably supported, and that is allowed to abut on and separate from the restricting portions 22a and 22a on both sides of the drive body 22, and a link cam 23 at the center of the link cam 23. One end 24 a is locked to the recess 23 b to urge the link cam 23 in a predetermined direction, and the other end 24 b is locked to the arc-shaped convex portion 15 c of the trigger 15 to lock the tip 15 b of the trigger 15. The torsion coil spring 24 that is biased in a direction protruding outward from the device main body 11 and the locking portion 11b of the locking device main body 11 are locked at one end 25a and the other end 25b is locked at the bottom side 19c of the cam plate 19 Let the cam 19 is composed of a torsion coil spring 25 for biasing the arrow D direction.

図２及び図３に示すように、リンクカム２３の先端部２３ａは略三角形状に形成してあり、その一方の面にカム板１９の傾斜辺部１９ｄに摺動する突起２３ｃを一体突出形成してある。また、リンクカム２３の基部２３ｄは円形になっており、その中央部を支軸２１に貫通させている。   As shown in FIGS. 2 and 3, the distal end portion 23 a of the link cam 23 is formed in a substantially triangular shape, and a protrusion 23 c that slides on the inclined side portion 19 d of the cam plate 19 is integrally formed on one surface thereof. It is. Further, the base portion 23 d of the link cam 23 has a circular shape, and its central portion is passed through the support shaft 21.

尚、引き違い戸１の内，外障子２，３の両枠部２ａ，３ａはアルミニウム製である。また、二段ギヤ１７には引っ張りコイルバネ２９の一端を係止してあり、この引っ張りコイルバネ２９の引っ張り力によりレバー１３は戻る方向に常に付勢されるようになっている。さらに、ドライブ体２２の中央には棒状の殴打部２２ｃを一体突出形成してあり、該ドライブ体２２の回動によって殴打部２２ｃが、自己発電可能で、かつ送信機能を備えた圧電発電装置３０の鋼球支持弾性体３１に固定された一方の鋼球３２を殴打するように構成されている。この圧電発電装置３０は、外部電源に頼ることなく、クレセント錠装置１０のレバー１３の開閉操作（ロック操作からロック解除操作、或はその逆の操作）毎に図示しない圧電セラミックス体が自己発電して必要な電力を直ちに供給することができるように構成されている。即ち、圧電発電装置３０は、レバー１３が施錠を解除される方向に回動操作されても発電作動が行なわれ、クレセント錠装置１０のロック状態が解除されたという信号が送られるようになっている。   In addition, in the sliding door 1, both the frame parts 2a and 3a of the external shojis 2 and 3 are made of aluminum. Further, one end of a tension coil spring 29 is engaged with the two-stage gear 17, and the lever 13 is always urged in the returning direction by the tension force of the tension coil spring 29. Further, a rod-shaped striking portion 22c is integrally formed at the center of the drive body 22, and the striking portion 22c is capable of self-power generation by rotation of the drive body 22, and has a transmission function. One steel ball 32 fixed to the steel ball supporting elastic body 31 is hit. The piezoelectric power generator 30 self-powers a piezoelectric ceramic body (not shown) every time the lever 13 of the crescent lock device 10 is opened and closed (from a lock operation to an unlock operation or vice versa) without relying on an external power source. The necessary power can be supplied immediately. That is, the piezoelectric power generation device 30 is activated even when the lever 13 is rotated in the unlocking direction, and a signal that the locked state of the crescent lock device 10 is released is transmitted. Yes.

以上実施形態のクレセント錠装置１０によれば、図２に示すように、内，外障子２，３の両枠部２ａ，３ａが正常な施錠位置にある時に、図５に示すように、レバー１３を施錠方向Ａに閉操作すると、ドライブ体２２が矢印Ｂ方向に回転する。これにより、リンク機構２０のリンクカム２３がドライブ体２２の一方の規制部２２ａに当たりながら矢印Ｃ方向に回転すると共に、カム板１９の傾斜辺部１９ｄがリンクカム２３の突起２３ｃに当たりながら該カム板１９が矢印Ｄ方向に揺動する。このカム板１９の揺動により、該カム板１９のカム溝１９ａを介してトリガー１５が矢印Ｅ方向に移動し、トリガー１５の先端部１５ｂが施錠装置本体１１の側壁の開口部１１ａより外側に突出する。   According to the crescent lock device 10 of the above embodiment, as shown in FIG. 2, when both the frame portions 2a, 3a of the inner and outer shoji 2, 3 are in the normal locking position, as shown in FIG. When 13 is closed in the locking direction A, the drive body 22 rotates in the arrow B direction. As a result, the link cam 23 of the link mechanism 20 rotates in the direction of arrow C while hitting one of the restricting portions 22a of the drive body 22, and the inclined side portion 19d of the cam plate 19 hits the projection 23c of the link cam 23 while the cam plate 19 swings in the direction of arrow D. Due to the swing of the cam plate 19, the trigger 15 moves in the direction of arrow E through the cam groove 19 a of the cam plate 19, and the tip 15 b of the trigger 15 is located outside the opening 11 a on the side wall of the locking device body 11. Protruding.

そして、図６に示すように、トリガー１５の先端部１５ｂがトリガー受け板５に当接する。この当接により、図７に示すように、トリガー１５の矢印Ｅ方向の移動が停止するため、カム板１９の矢印Ｄ方向の揺動が停止する。この際に、カム板１９の先端の円弧状の凸部１９ｂがロックディスク１６の円弧状の凹部１６ｂから離れているため、レバー１３の施錠方向Ａの閉操作は許容され、図７中矢印で示すように、リンクカム２３からドライブ体２２の一方の規制部２２ａが離れて行く。   Then, as shown in FIG. 6, the tip portion 15 b of the trigger 15 comes into contact with the trigger receiving plate 5. Due to this contact, as shown in FIG. 7, the movement of the trigger 15 in the direction of arrow E stops, so that the cam plate 19 stops swinging in the direction of arrow D. At this time, since the arc-shaped convex portion 19b at the tip of the cam plate 19 is separated from the arc-shaped concave portion 16b of the lock disk 16, the closing operation of the lever 13 in the locking direction A is permitted. As shown, one restricting portion 22a of the drive body 22 moves away from the link cam 23.

次に、図８に示すように、レバー１３が施錠方向Ａに更に閉操作されると、ドライブ体２２の他方の規制部２２ａがリンクカム２３の先端部２３ａに当たる。そして、図９に示すように、捩りコイルバネ２４の付勢力に抗してその撓みによりリンクカム２３が矢印Ｆ方向に揺動して逃げるため、レバー１３の施錠方向Ａの更なる閉操作は許容される。これにより、図１０に示すように、レバー１３の閉操作が終了すると、レバー１３の係止金具１４がフック金具４のフック片部４ａに係止されて施錠（ロック）される。   Next, as shown in FIG. 8, when the lever 13 is further closed in the locking direction A, the other restricting portion 22 a of the drive body 22 hits the distal end portion 23 a of the link cam 23. As shown in FIG. 9, the link cam 23 swings in the direction of the arrow F due to its bending against the biasing force of the torsion coil spring 24, so that further closing operation in the locking direction A of the lever 13 is allowed. Is done. As a result, as shown in FIG. 10, when the closing operation of the lever 13 is completed, the locking fitting 14 of the lever 13 is locked to the hook piece 4a of the hook fitting 4 and locked (locked).

また、図１，図１１に示すように、内，外障子２，３の両枠部２ａ，３ａが正常な施錠位置にない時に、レバー１３を施錠方向Ａに閉操作すると、ドライブ体２２が矢印Ｂ方向に回転する。これにより、リンク機構２０のリンクカム２３がドライブ体２２の一方の規制部２２ａに当たりながら矢印Ｃ方向に回転すると共に、カム板１９の傾斜辺部１９ｄがリンクカム２３の突起２３ｃに当たりながら該カム板１９が矢印Ｄ方向に揺動する。このカム板１９の揺動により、該カム板１９のカム溝１９ａを介してトリガー１５が矢印Ｅ方向に移動し、トリガー１５の先端部１５ｂが施錠装置本体１１の側壁の開口部１１ａより外側に突出する。   As shown in FIGS. 1 and 11, when the lever 13 is closed in the locking direction A when the frame portions 2a and 3a of the inner and outer shojis 2 and 3 are not in the normal locking position, the drive body 22 is moved. It rotates in the direction of arrow B. As a result, the link cam 23 of the link mechanism 20 rotates in the direction of arrow C while hitting one of the restricting portions 22a of the drive body 22, and the inclined side portion 19d of the cam plate 19 hits the projection 23c of the link cam 23 while the cam plate 19 swings in the direction of arrow D. Due to the swing of the cam plate 19, the trigger 15 moves in the direction of arrow E through the cam groove 19 a of the cam plate 19, and the tip 15 b of the trigger 15 is located outside the opening 11 a on the side wall of the locking device body 11. Protruding.

この際、図１２に示すように、施錠装置本体１１の側壁の開口部１１ａより外側に突出したトリガー１５の先端部１５ｂがトリガー受け板５に当たらないため、図１３に示すように、レバー１３を施錠方向Ａに更に閉操作すると、ドライブ体２２が矢印Ｂ方向に回転する。これにより、リンクカム２３がドライブ体２２の一方の規制部２２ａに当たりながら矢印Ｃ方向に更に回転すると共に、カム板１９の傾斜辺部１９ｄがリンクカム２３の突起２３ｃに当たりながら該カム板１９が矢印Ｄ方向に更に揺動する。このカム板１９の揺動により、該カム板１９のカム溝１９ａを介してトリガー１５が矢印Ｇ方向に移動し、施錠装置本体１１の側壁の開口部１１ａより外側に突出したトリガー１５の先端部１５ｂを該施錠装置本体１１内に後退させる。   At this time, as shown in FIG. 12, the tip portion 15b of the trigger 15 protruding outward from the opening portion 11a of the side wall of the locking device main body 11 does not hit the trigger receiving plate 5. Therefore, as shown in FIG. Is further closed in the locking direction A, the drive body 22 rotates in the arrow B direction. As a result, the link cam 23 further rotates in the direction of arrow C while hitting one of the restricting portions 22a of the drive body 22, and the cam plate 19 is moved to the arrow while the inclined side portion 19d of the cam plate 19 hits the projection 23c of the link cam 23. Further swing in the D direction. Due to the swing of the cam plate 19, the trigger 15 moves in the direction of arrow G through the cam groove 19 a of the cam plate 19, and the tip end portion of the trigger 15 that protrudes outward from the opening portion 11 a of the side wall of the locking device body 11. 15 b is retracted into the locking device main body 11.

そして、図１４に示すように、レバー１３を施錠方向Ａに更に閉操作すると、ドライブ体２２が矢印Ｂ方向に回転する。これにより、リンクカム２３がドライブ体２２の一方の規制部２２ａに当たりながら矢印Ｃ方向に更に回転すると共に、カム板１９の傾斜辺部１９ｄがリンクカム２３の突起２３ｃに当たりながら該カム板１９が矢印Ｄ方向に更に揺動する。このカム板１９の揺動により、該カム板１９のカム溝１９ａを介してトリガー１５が矢印Ｇ方向に更に移動する。   Then, as shown in FIG. 14, when the lever 13 is further closed in the locking direction A, the drive body 22 rotates in the arrow B direction. As a result, the link cam 23 further rotates in the direction of arrow C while hitting one of the restricting portions 22a of the drive body 22, and the cam plate 19 is moved to the arrow while the inclined side portion 19d of the cam plate 19 hits the projection 23c of the link cam 23. Further swing in the D direction. As the cam plate 19 swings, the trigger 15 further moves in the arrow G direction via the cam groove 19 a of the cam plate 19.

また、図１４，図１５に示すように、レバー１３の施錠方向Ａへの更なる閉操作により、ロックディスク１６が矢印Ｈ方向に回転するため、該ロックディスク１６の円弧状の凹部１６ｂがカム板１９の先端の円弧状の凸部１９ｂに接近する。そして、施錠装置本体１１の側壁の開口部１１ａより外側に突出したトリガー１５の先端部１５ｂが該施錠装置本体１１内に完全に収納されると、図１６に示すように、カム板１９の円弧状の凸部１９ｂがロックディスク１６の円弧状の凹部１６ｂに係止される。これにより、カム板１９がロックディスク１６をロックするため、レバー１３の施錠方向Ａの閉操作は阻止され、レバー１３の係止金具１４の空掛けが確実に防止される。   Further, as shown in FIGS. 14 and 15, the lock disk 16 rotates in the direction of arrow H by further closing operation of the lever 13 in the locking direction A, so that the arc-shaped recess 16b of the lock disk 16 is camped. The arcuate convex portion 19b at the tip of the plate 19 is approached. When the distal end portion 15b of the trigger 15 protruding outward from the opening 11a on the side wall of the locking device main body 11 is completely accommodated in the locking device main body 11, as shown in FIG. The arc-shaped convex portion 19 b is locked to the arc-shaped concave portion 16 b of the lock disk 16. Thereby, since the cam plate 19 locks the lock disk 16, the closing operation of the lever 13 in the locking direction A is prevented, and the latch 14 of the lever 13 is reliably prevented from being hung.

このように、図５〜図８に示す内，外障子２，３の両枠部２ａ，３ａが重なり合う該両枠部２ａ，３ａが正常な施錠位置にある時に、トリガー１５の先端部１５ｂを施錠装置本体１１内より外側に突出させてトリガー受け板５に当接させ、それ以上突出させないようにしてカム板１９がロック位置まで移動することを阻止し、かつ、レバー１３の施錠方向Ａの回動操作を許容するようにしたことにより、内障子２の枠部２ａのレバー１３の係止金具１４を外障子３の枠部３ａのフック金具４のフック片部４ａに簡単かつ確実にロックすることができる。   As shown in FIGS. 5 to 8, when the two frame portions 2a and 3a where the two frame portions 2a and 3a of the external shoji 2 and 3 overlap, the distal end portion 15b of the trigger 15 is The locking device main body 11 is projected outward from the locking device main body 11 and brought into contact with the trigger receiving plate 5, so that the cam plate 19 is prevented from moving to the locked position so as not to protrude further, and the lever 13 is locked in the locking direction A. By allowing the turning operation, the locking metal fitting 14 of the lever 13 of the frame portion 2a of the inner shoji 2 can be easily and reliably locked to the hook piece 4a of the hook metal fitting 4 of the frame portion 3a of the outer shoji 3. can do.

また、図１，図１１〜図１６に示すように、内，外障子２，３の両枠部２ａ，３ａが正常な施錠位置にない時に、施錠装置本体１１の外側に突出したトリガー１５の先端部１５ｂはトリガー受け板５に当接することなく突出し、カム板１９の揺動を許容し、このカム板１９の揺動によりトリガー１５の先端部１５ｂを施錠装置本体１１内に後退させ、この後退途中または後退後にカム板１９がロックディスク１６をロックしてレバー１３の施錠方向Ａの回動操作を阻止するようにしたことにより、レバー１３の係止金具１４、即ち、クレセント錠装置１０の空掛けを確実に防止することができる。この場合に、トリガー１５の先端部１５ｂはカム板１９の揺動により施錠装置本体１１内に後退して外側に突出することがないため、レバー１３を回動してロック状態で内障子２及び外障子３を移動させてもトリガー１５の先端部１５ｂが外障子３の枠部３ａに当たることがなくなり、トリガー１５の先端部１５ｂおよび外障子３の枠部３ａの摩耗や破損を確実に防止することができる。   As shown in FIGS. 1 and 11 to 16, when both the frame portions 2 a and 3 a of the inner and outer shojis 2 and 3 are not in the normal locking position, the trigger 15 protruding outside the locking device main body 11 is provided. The distal end portion 15b protrudes without contacting the trigger receiving plate 5, allows the cam plate 19 to swing, and the cam plate 19 swings the distal end portion 15b of the trigger 15 back into the locking device main body 11. The cam plate 19 locks the lock disk 16 in the middle of or after the retraction to prevent the lever 13 from rotating in the locking direction A, so that the locking member 14 of the lever 13, that is, the crescent lock device 10 It is possible to reliably prevent emptying. In this case, the tip 15b of the trigger 15 is not retracted into the locking device main body 11 due to the swing of the cam plate 19 and does not protrude outward. The tip 15b of the trigger 15 does not hit the frame 3a of the guard 3 even if the guard 3 is moved, and the tip 15b of the trigger 15 and the frame 3a of the guard 3 are reliably prevented from being worn or damaged. be able to.

さらに、トリガー１５に連係したカム板１９を揺動させるリンク機構２０を簡単かつ低コストで構成することができるため、内障子２の枠部２ａのレバー１３の係止金具１４の空掛けを簡単かつ低コストで確実に防止することができる。   Further, since the link mechanism 20 that swings the cam plate 19 linked to the trigger 15 can be configured easily and at low cost, the latch 14 of the lever 13 of the frame portion 2a of the inner shroud 2 can be easily hung. And it can prevent reliably at low cost.

尚、前記実施形態によれば、クレセント錠装置を建物の窓開口に装着される引き違い戸の内外障子の枠部に取り付けた場合につてい説明したが、開き戸の扉、雨戸、観音開きの扉や窓、天窓等に適用しても良いことは勿論である。また、空掛け防止受け部材をフック金具に併設した場合について説明したが、フック金具本体が空掛け防止受け部材を兼ねたり、或いは、空掛け防止受け部材を外側開閉体の枠部内のガラス等に取り付けても良いことは勿論である。   In addition, according to the said embodiment, although it demonstrated about the case where the crescent lock apparatus was attached to the frame part of the inside and outside shoji of the sliding door with which the window opening of a building is mounted | worn, the door of a hinged door, a shutter, and a door of a double door Of course, it may be applied to windows, skylights, and the like. In addition, the case where the empty hanging prevention receiving member is provided together with the hook metal fitting has been described, but the hook metal fitting body also serves as the empty hanging prevention receiving member, or the empty hanging prevention receiving member is attached to the glass in the frame portion of the outer opening / closing body. Of course, it may be attached.

本発明の一実施形態のクレセント錠装置の取付状態を示す引き違い戸の正面図である。It is a front view of the sliding door which shows the attachment state of the crescent lock device of one embodiment of the present invention. 上記クレセント錠装置のレバー開状態の内部構造を示す説明図である。It is explanatory drawing which shows the internal structure of the lever open state of the said crescent lock apparatus. 上記クレセント錠装置の要部の拡大説明図である。It is expansion explanatory drawing of the principal part of the said crescent lock apparatus. 上記クレセント錠装置の要部の斜視図である。It is a perspective view of the principal part of the said crescent lock device. 上記クレセント錠装置の正常な施錠時の初期状態を示す説明図である。It is explanatory drawing which shows the initial state at the time of normal locking of the said crescent lock apparatus. 上記正常な施錠時において空掛け防止部材がその受け部材に当たった状態を示す説明図である。It is explanatory drawing which shows the state in which the hung prevention member contacted the receiving member at the time of the said normal locking. 上記正常な施錠時のレバーを施錠方向の回動を許容する初期の状態を示す説明図である。It is explanatory drawing which shows the initial state which accept | permits the rotation in the locking direction of the lever at the time of the said normal locking. 上記レバーの係止金具がフック金具に係止する初期状態を示す説明図である。It is explanatory drawing which shows the initial state which the latching metal fitting of the said lever latches to a hook metal fitting. 上記レバーの係止金具がフック金具に係止した途中の状態を示す説明図である。It is explanatory drawing which shows the state in the middle of the latch metal fitting of the said lever latching to the hook metal fitting. 上記レバーの閉状態を示す説明図である。It is explanatory drawing which shows the closed state of the said lever. 上記クレセント錠装置の空掛け防止時の初期状態を示す説明図である。It is explanatory drawing which shows the initial state at the time of emptying prevention of the said crescent lock apparatus. 上記空掛け防止時において空掛け防止部材の先端部が外側に突出した状態を示す説明図である。It is explanatory drawing which shows the state which the front-end | tip part of the emptying prevention member protruded outside at the time of the said emptying prevention. 上記空掛け防止時において空掛け防止部材の先端部が内部に退避した状態を示す説明図である。It is explanatory drawing which shows the state which the front-end | tip part of the anti-hanging member evacuated inside at the time of the said anti-hanging. 上記空掛け防止時においてレバーがロックされる前の状態を示す説明図である。It is explanatory drawing which shows the state before a lever is locked at the time of the said hung prevention. 上記空掛け防止時においてレバーがロックされる直前の状態を示す説明図である。It is explanatory drawing which shows the state just before a lever is locked at the time of the said hung prevention. 上記空掛け防止時においてレバーがロックされた状態を示す説明図である。It is explanatory drawing which shows the state in which the lever was locked at the time of the said hung prevention.

符号の説明Explanation of symbols

２ 内障子（内側開閉体）
２ａ 枠部
３ 外障子（外側開閉体）
３ａ 枠部
４ フック金具
５ トリガー受け板（空掛け防止受け部材）
１０ クレセント錠装置
１１ 施錠装置本体
１２ 軸
１３ レバー
１４ 係止金具
１５ トリガー（空掛け防止部材）
１５ｂ 先端部
１６ ロックディスク（ロック部材）
１７ 二段ギヤ
１９ カム板（カム部材）
２０ リンク機構
２１ 支軸
２２ ドライブ体
２２ａ，２２ａ 両側の規制部
２３ リンクカム
２４ 捩りコイルバネ
２４ａ 一端
２４ｂ 他端
Ａ 施錠方向 2 Inner shoji (inner opening / closing body)
2a Frame 3 Shoji (outside opening / closing body)
3a Frame part 4 Hook fitting 5 Trigger receiving plate (empty hanging prevention receiving member)
DESCRIPTION OF SYMBOLS 10 Crescent lock device 11 Locking device main body 12 Shaft 13 Lever 14 Locking bracket 15 Trigger (empty hanging prevention member)
15b Tip 16 Lock disk (lock member)
17 Two-stage gear 19 Cam plate (cam member)
20 Link mechanism 21 Support shaft 22 Drive body 22a, 22a Restriction part on both sides 23 Link cam 24 Torsion coil spring 24a One end 24b The other end A Locking direction

Claims (2)

内側開閉体に固定され、レバーを有した係止金具を軸を介して回動自在に取り付けると共に空掛け防止部材を設けた施錠装置本体と、この施錠装置本体の前記係止金具に対向する位置の外側開閉体に設けられたフック金具及び空掛け防止受け部材とを備え、前記内側開閉体と前記外側開閉体とが正常な施錠位置にある時に、前記レバーの回動操作により前記係止金具を前記フック金具に係止・離脱させて施錠・解錠すると共に、前記両開閉体が正常な施錠位置にない時に、前記空掛け防止部材により前記レバーの施錠方向の回動操作を阻止するようにしたクレセント錠装置において、
前記施錠装置本体内に前記軸に連動するロック部材を設けると共に、該ロック部材にリンク機構を介して揺動するカム部材を設け、このカム部材に前記空掛け防止部材を連係させて該空掛け防止部材の先端部を前記施錠装置本体の内外に進退動自在に設け、前記両開閉体が正常な施錠位置にある時に、前記空掛け防止部材の先端部を前記施錠装置本体内より外側に突出させて前記空掛け防止受け部材に当接させ、この空掛け防止部材の先端部をそれ以上突出させないようにして前記カム部材がロック位置まで移動することを阻止し、前記レバーの施錠方向の回動操作を許容するように構成したことを特徴とするクレセント錠装置。 A locking device body fixed to the inner opening / closing body and having a lever attached thereto so as to be rotatable via a shaft and provided with an anti-hanging member, and a position of the locking device body facing the locking metal member A hook fitting provided on the outer opening / closing body and an anti-hanging receiving member, and when the inner opening / closing body and the outer opening / closing body are in a normal locking position, the locking fitting is operated by rotating the lever. Is locked and unlocked by engaging and disengaging the hook metal fitting, and when the opening and closing body is not in the normal locking position, the emptying prevention member prevents the lever from rotating in the locking direction. In the crescent lock device
A lock member that interlocks with the shaft is provided in the locking device main body, and a cam member that swings via a link mechanism is provided on the lock member. A front end portion of the prevention member is provided to be movable forward and backward in and out of the main body of the locking device, and when the both opening and closing bodies are in a normal locking position, the front end portion of the anti-hanging member projects outward from the inner portion of the locking device body The cam member is prevented from moving to the lock position so that the tip of the anti-hanging member is not protruded any further, and the lever is rotated in the locking direction of the lever. A crescent lock device configured to allow a dynamic operation. 内側開閉体に固定され、レバーを有した係止金具を軸を介して回動自在に取り付けると共に空掛け防止部材を設けた施錠装置本体と、この施錠装置本体の前記係止金具に対向する位置の外側開閉体に設けられたフック金具及び空掛け防止受け部材とを備え、前記内側開閉体と前記外側開閉体とが正常な施錠位置にある時に、前記レバーの回動操作により前記係止金具を前記フック金具に係止・離脱させて施錠・解錠すると共に、前記両開閉体が正常な施錠位置にない時に、前記空掛け防止部材により前記レバーの施錠方向の回動操作を阻止するようにしたクレセント錠装置において、
前記施錠装置本体内に前記軸に連動するロック部材を設けると共に、該ロック部材にリンク機構を介して揺動するカム部材を設け、このカム部材に前記空掛け防止部材を連係させて該空掛け防止部材の先端部を前記施錠装置本体の内外に進退動自在に設け、前記両開閉体が正常な施錠位置にある時に、前記空掛け防止部材の先端部を前記施錠装置本体内より外側に突出させて前記空掛け防止受け部材に当接させ、この空掛け防止部材の先端部をそれ以上突出させないようにして前記カム部材がロック位置まで移動することを阻止し、前記レバーの施錠方向の回動操作を許容する一方、前記両開閉体が正常な施錠位置にない時に、前記施錠装置本体の外側に突出した前記空掛け防止部材の先端部は前記空掛け防止受け部材に当接することなく突出し、前記カム部材の揺動を許容し、このカム部材の揺動により前記空掛け防止部材の先端部を前記施錠装置本体内に後退させると共に、前記カム部材が前記ロック部材をロックして前記レバーの施錠方向の回動操作を阻止するように構成したことを特徴とするクレセント錠装置。 A locking device body fixed to the inner opening / closing body and having a lever attached thereto so as to be rotatable via a shaft and provided with an anti-hanging member, and a position of the locking device body facing the locking metal member A hook fitting provided on the outer opening / closing body and an anti-hanging receiving member, and when the inner opening / closing body and the outer opening / closing body are in a normal locking position, the locking fitting is operated by rotating the lever. Is locked and unlocked by engaging and disengaging the hook metal fitting, and when the opening and closing body is not in the normal locking position, the emptying prevention member prevents the lever from rotating in the locking direction. In the crescent lock device
A lock member that interlocks with the shaft is provided in the locking device main body, and a cam member that swings via a link mechanism is provided on the lock member. A front end portion of the prevention member is provided to be movable forward and backward in and out of the main body of the locking device, and when the both opening and closing bodies are in a normal locking position, the front end portion of the anti-hanging member projects outward from the inner portion of the locking device body The cam member is prevented from moving to the lock position so that the tip of the anti-hanging member is not protruded any further, and the lever is rotated in the locking direction of the lever. While the movable operation is allowed, when the both opening and closing bodies are not in the normal locking position, the tip of the emptying prevention member protruding outside the locking device body protrudes without coming into contact with the emptying prevention receiving member. The cam member is allowed to swing, and the cam member swings to retract the tip of the emptying prevention member into the locking device body, and the cam member locks the lock member to A crescent lock device configured to prevent a rotation operation in a locking direction of a lever.
JP2005149148A 2005-05-23 2005-05-23 Crescent lock device Expired - Fee Related JP4721332B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09217537A (en) * 1996-02-08 1997-08-19 Nakanishi Kinzoku Kogyo Kk Crescent lock
JP2005105816A (en) * 2004-12-20 2005-04-21 Alpha Corp Crescent lock
JP2006188901A (en) * 2005-01-07 2006-07-20 Shin Nikkei Co Ltd Crescent lock and sash

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09217537A (en) * 1996-02-08 1997-08-19 Nakanishi Kinzoku Kogyo Kk Crescent lock
JP2005105816A (en) * 2004-12-20 2005-04-21 Alpha Corp Crescent lock
JP2006188901A (en) * 2005-01-07 2006-07-20 Shin Nikkei Co Ltd Crescent lock and sash

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