JP5171547B2

JP5171547B2 - Latch device

Info

Publication number: JP5171547B2
Application number: JP2008277549A
Authority: JP
Inventors: 亨三本松; 康志植木; 衆一小池
Original assignee: Nifco Inc
Current assignee: Nifco Inc
Priority date: 2008-10-29
Filing date: 2008-10-29
Publication date: 2013-03-27
Anticipated expiration: 2028-10-29
Also published as: JP2010106479A; KR20100047807A; KR101116985B1

Description

本発明は、第１部材（例えば、箱状基体）に第２部材（例えば、蓋等の可動体）を着脱可能に係止するようなときに用いられるラッチ装置のうち、特に最初の押し操作により第２部材側の被係脱部材を係止し、次の押し操作により係止解除するプッシュ・プッシュ係止機構（これはプッシュロック・プッシュオープン機構と称されたり、プッシュ式と略称されることもある、以下、同じ）に好適なラッチ装置に関するものである。 The present invention is the first push operation among latch devices used when a second member (for example, a movable body such as a lid) is detachably locked to a first member (for example, a box-shaped base). The push / push locking mechanism that locks the engaged / disengaged member on the second member side and releases the locking by the next pushing operation (this is called a push-lock / push-open mechanism or abbreviated as a push type) The present invention also relates to a latch device suitable for the same).

図８は特許文献１に開示のプッシュ式のラッチ装置を示している。この構造では、ハウジング２と、被係脱部材であるストライカー６２と当接する突当部３２及びカム溝５を有し、ハウジング２内に配置されてばね部材４５の付勢力に抗して押圧移動される摺動体３０と、先端側の爪部３９及び基端側の凸部３８ｃを有して摺動体３０に枢支されている係合体３７と、トレース用のピン部材６とを備えている。このうち、係合体３７は、摺動体３０の対応軸穴部に対し両側に設けられた軸部３７ａを嵌合した状態で枢支されて、摺動体３０の位置移動により、同（ｂ）のごとく爪部３９を突当部３２上に突出してストライカー６２を係止する係止位置と、同（ａ）のごとく爪部３９を突当部３２上から退行する係止解除位置とに切り換えられる。係止解除位置では、摺動体３０がばね部材４５の付勢力でハウジング２の入口側に移動され、係合体３７がハウジング２内に設けられた張出部２８に凸部３８ｃを乗り上げることでその状態を保つ。係止位置では、摺動体３０がストライカー６２の押し力でばね部材４５の付勢力に抗して奥側に移動され、該移動後の位置にカム溝５及びピン部材６の係合を介し保持され、係合体３７が凸部３８ｃを張出部２８から低くなった部分に移動し、かつ傾動して爪部３９を摺動体側の開口３３内から突出する。 FIG. 8 shows a push-type latch device disclosed in Patent Document 1. In this structure, the housing 2 has the abutting portion 32 and the cam groove 5 that come into contact with the striker 62 that is a member to be engaged / disengaged, and is disposed in the housing 2 to be pressed against the urging force of the spring member 45. A sliding body 30, a distal end side claw portion 39 and a proximal end convex portion 38c, and an engaging body 37 pivotally supported by the sliding body 30, and a tracing pin member 6. . Among these, the engagement body 37 is pivotally supported in a state in which the shaft portions 37 a provided on both sides are fitted to the corresponding shaft hole portions of the slide body 30, and the position movement of the slide body 30 causes the same (b). Thus, the claw portion 39 is projected onto the abutting portion 32 to be switched to a locking position where the striker 62 is locked, and the claw portion 39 is switched to a locking release position where the claw portion 39 is retracted from the abutting portion 32 as shown in FIG. . In the unlocking position, the sliding body 30 is moved to the inlet side of the housing 2 by the urging force of the spring member 45, and the engaging body 37 rides the protruding portion 38 c on the overhanging portion 28 provided in the housing 2. Keep state. In the locking position, the sliding body 30 is moved to the back side against the biasing force of the spring member 45 by the pushing force of the striker 62, and is held at the position after the movement through the engagement of the cam groove 5 and the pin member 6. Then, the engaging body 37 moves the convex portion 38c to a portion lowered from the protruding portion 28, and tilts to project the claw portion 39 from the inside of the opening 33 on the sliding body side.

換言すると、以上のラッチ装置は、摺動体３０に対するストライカー６２の押し力により係合体３７を係止解除位置から係止位置に切り換え、かつ、摺動体３０に対するストライカー６２の次の押し力により係止位置から係止解除位置に切り換える。その際、ばね部材４５は、上側が係合体３７の下側中間に設けられた突片部に係止されており、摺動体３０が奥へ押圧移動される過程で付勢力を蓄積しながら、係合体３７を軸部３７ａを支点として同図の逆時計回りへ回動し係止解除位置から係止位置方向へ切換可能とする。使用形態としては、本体側にラッチ装置を取り付け、扉側にストライカー６２を設けた場合だと、同（ｂ）が扉を本体に保持（ロック）した状態となり、扉側のストライカー６２が本体側のラッチ装置を構成している係合体３７により係止される。この係止は、扉が再び本体側へ押されることで、ピン部材６がカム溝５の係止溝から外れて同（ａ）のごとく係止解除される。このような構造は特許文献２や３のラッチ装置でも同様である。
特開２００４−１３７７２５号公報特開２００１−２６２９１５号公報特開２００６−２２５４３号公報 In other words, the latch device described above switches the engaging body 37 from the unlocking position to the locking position by the pressing force of the striker 62 against the sliding body 30 and is locked by the next pressing force of the striker 62 against the sliding body 30. Switch from position to unlocking position. At that time, the spring member 45 is locked to a projecting piece provided on the lower middle of the engagement body 37 on the upper side, while accumulating urging force in the process of the sliding body 30 being pushed and moved to the back, The engaging body 37 is rotated counterclockwise in the figure with the shaft portion 37a as a fulcrum, and can be switched from the unlocking position to the locking position. As a form of use, when the latch device is attached to the main body side and the striker 62 is provided on the door side, the state (b) holds (locks) the door to the main body, and the door side striker 62 is on the main body side. It is latched by the engaging body 37 constituting the latch device. When the door is pushed again toward the main body, the pin member 6 is released from the locking groove of the cam groove 5 and is released as shown in FIG. Such a structure is the same in the latch devices of Patent Documents 2 and 3.
JP 2004-137725 A JP 2001-262915 A JP 2006-22543 A

上記したラッチ装置は、大小さまざまな機器類に利用されており、例えば、小型軽量化の要求から全寸が３０〜４０ｍｍ程度のものも提供されている。しかし、従来の構造では、更なるコンパクト化、例えばハウジングの長さ寸法として１０〜１５ｍｍ程度を実現するため、部材同士の位置関係を維持して形状を単純に小さくすると係合体の剛性力が足りなくなり、また係合体だけを相対的に大きくすることはスペース的に難しい。 The above-described latch device is used in various types of large and small devices, and for example, a device having a total size of about 30 to 40 mm is provided due to a demand for reduction in size and weight. However, in the conventional structure, in order to achieve further compactness, for example, about 10 to 15 mm as the length of the housing, if the shape is simply reduced while maintaining the positional relationship between the members, the rigidity of the engagement body is sufficient. It is difficult to make the engaging body relatively large.

そこで、本発明の目的は、係合体の係止力や剛性力を極力維持しながら、よりコンパクト化を可能にして用途を拡大することにある。 Therefore, an object of the present invention is to expand the application by enabling more compactness while maintaining the locking force and rigidity of the engaging body as much as possible.

上記目的を達成するため本発明は、ハウジングと、被取付部材と当接する突当部及びカム溝を有して前記ハウジングに対し進退可能に配置された摺動体と、前記摺動体を前記ハウジングから突出する方向へ付勢しているばね部材と、前記摺動体に対し回転自在に支持されて、先端側の爪部を前記突当部上（この突当部上とは図４のごとくラッチ装置を横配置にした場合、同（ａ）のごとく爪部を突当部に近づくよう突出する態様を含む）に突出して被係脱部材を係止可能にする係止位置及び前記突当部上から退行される係止解除位置に切り換えられる係合体と、前記カム溝をトレースするピン部材とを備え、前記摺動体が押圧されて前記ばね部材の付勢力に抗して移動されると、その移動後の位置に前記カム溝及びピン部材を介して保持され、かつ前記係合体が係止解除位置から係止位置に切り換えられるラッチ装置において、前記係合体は、前記爪部、及び前記爪部と所定隙間を保ちかつ該爪部と同方向に突出されて前記摺動体に回転自在に支持する枢支部を形成している突出部を有し、前記摺動体に対し支持され前記係止位置に配置された状態で前記爪部と前記突出部との間に前記突当部が位置していることを特徴している。 In order to achieve the above object, the present invention provides a housing, a sliding body that has a contact portion and a cam groove that come into contact with a member to be attached, and is arranged so as to be able to advance and retreat with respect to the housing, and the sliding body from the housing. A spring member that is biased in a protruding direction, and a claw portion on the distal end side that is supported rotatably with respect to the sliding body, and a latch device as shown in FIG. And a position where the claw portion protrudes so as to approach the abutment portion as shown in FIG. And a pin member that traces the cam groove, and when the sliding body is pressed and moved against the urging force of the spring member, The position after movement is held via the cam groove and pin member. In the latch device in which the engaging body is switched from the unlocking position to the locking position, the engaging body maintains a predetermined gap with the claw portion and the claw portion and protrudes in the same direction as the claw portion. A projecting portion that forms a pivotal support that is rotatably supported by the sliding body, and is supported between the sliding body and disposed at the locking position between the claw portion and the projecting portion; It is characterized in that the abutment is located.

請求項２の発明は、以上の発明が係合体の構成から特定したのに対し摺動体の構成特徴から特定したものであり、前提要件を同じくし、前記摺動体は、前記ハウジングの出入口側に配置される前記突当部と、前記ハウジングの奥側に配置される前記カム溝と、前記突当部と前記カム溝との間に少なくとも一部が配置されるよう設けられて前記係合体を回転自在に支持する枢支部とを有していることを特徴としている。 The invention of claim 2 is specified from the structural features of the sliding body, whereas the above invention is specified from the configuration of the engaging body, and the same prerequisites are provided, and the sliding body is located on the entrance / exit side of the housing. The engaging portion is provided so that at least a part is disposed between the abutting portion to be disposed, the cam groove disposed on the back side of the housing, and the abutting portion and the cam groove. It is characterized by having a pivotally supporting portion that is rotatably supported.

請求項３の発明は、請求項１又は２において、前記摺動体は、略逆凹状の本体と、前記本体の後方に突出されて幅細となった箇所に前記カム溝を形成している後延長部とを有し、前記本体の逆凹状の前端面を前記突当部とし、前記両側面に枢支部用軸穴又は軸部を形成しており、前記係合体は、前記爪部を設けた前板部と、前記前板部から後方向へ突設した後片部と、前記後片部の側面に設けられた凸部とを有し、前記凸部が前記後延長部の幅細となった箇所へ移行しながら前記ハウジング内に設けられた張出部に乗り上げることで前記係止位置から係止解除位置に切り換えられることを特徴としている。 According to a third aspect of the present invention, in the first or second aspect, the slide body includes a substantially reverse concave main body and the cam groove formed in a narrowed portion protruding rearward of the main body. An extension part, the front end surface of the main body having an inverted concave shape is used as the abutting part, and shaft holes or shaft parts for pivot parts are formed on both side surfaces, and the engaging body is provided with the claw part. A front plate portion, a rear piece projecting rearward from the front plate portion, and a convex portion provided on a side surface of the rear piece portion, the convex portion being a narrow width of the rear extension portion. It is characterized by being able to be switched from the locking position to the locking release position by riding on the overhanging portion provided in the housing while shifting to the position.

請求項１の発明では、従来構造に対し、係合体が図４に示されるごとく所定間隔を保って設けられた爪部及び枢支部用突出部を有し、摺動体に対し支持され係止位置に配置された状態で爪部と突出部との間に摺動体の突当部が位置している。このため、ラッチ装置としては、係合体を摺動体の内側に対応部をより入り込むようにして、摺動体に対し係合体を支持した状態、つまり係合体付き摺動体の幅方向ないしは厚さ方向の寸法、引いてはハウジングの厚さを短縮できること（なお、ハウジングの長さは形態のごとく摺動体が係合体の係止解除位置でハウジング内から外へ突出するようにするだけで全寸を短縮できる）、係合体の枢支部を突当部の後方ないしは真下に配置することになるので係合体の形状（例えば、係合体の枢支部から爪部、枢支部から凸部までのそれぞれの距離）として設計自由度を拡大できること、等によりコンパクト化が可能となる。 According to the first aspect of the present invention, the engaging body has a claw portion and a pivot supporting portion provided at a predetermined interval as shown in FIG. The abutting portion of the sliding body is located between the claw portion and the protruding portion in the state of being arranged in the position. For this reason, as a latch device, the engaging body is inserted into the inside of the sliding body so that the corresponding portion is inserted more, and the engaging body is supported with respect to the sliding body, that is, in the width direction or the thickness direction of the sliding body with the engaging body. The size, and thus the thickness of the housing can be shortened (Note that the length of the housing is reduced by simply allowing the sliding body to protrude from the inside of the housing at the unlocking position of the engaging body as in the form. Yes, because the pivot part of the engagement body is arranged behind or directly below the abutment part, the shape of the engagement body (for example, the distance from the pivot part of the engagement body to the claw part and the pivot part to the convex part) As a result, it is possible to reduce the design flexibility.

請求項２の発明では、従来構造に対し、摺動体が図４に示されるごとくハウジングの出入口側に配置される突当部、ハウジングの奥側に配置されるカム溝、突当部とカム部との間に少なくとも一部が配置されるよう設けられて係合体を支持する枢支部を有している。このため、ラッチ装置としては、請求項１と同様に係合体を摺動体の内側に対応部をより入り込むようにして、係合体付き摺動体の幅方向ないしは厚さ方向の寸法、引いてはハウジングの厚さを短縮できること（この場合も、ハウジングの長さは摺動体をハウジング内から外へ突出するようにするだけで全寸を短縮できる）、係合体の枢支部を突当部の後方ないしは真下に配置することになるので係合体の形状として設計自由度を拡大できること、等によりコンパクト化が可能となる。 According to the second aspect of the present invention, compared to the conventional structure, the sliding body is disposed on the inlet / outlet side of the housing as shown in FIG. 4, the cam groove disposed on the rear side of the housing, the abutting portion and the cam portion. And a pivotal support portion that is provided so that at least a part thereof is disposed between the two and supports the engaging body. Therefore, as the latch device, the engaging body is inserted into the inside of the sliding body so that the corresponding portion is inserted more in the same manner as in the first aspect, and the dimension in the width direction or the thickness direction of the sliding body with the engaging body is pulled. The thickness of the housing can be shortened (again, the length of the housing can be shortened by simply projecting the sliding body from the inside of the housing to the outside). Since it is arranged directly below, the design freedom can be expanded as the shape of the engaging body, and the compactness can be achieved.

請求項３の発明では、摺動体及び係合体の具体的形状例を明らかにし、それにより請求項１や２の発明を実施容易にする。 In the invention of claim 3, specific examples of the shapes of the sliding body and the engaging body are clarified, thereby facilitating the implementation of the invention of claims 1 and 2.

以下、本発明の最良形態を図１〜図７を参照しながら説明する。なお、図面ではラッチ装置を拡大（例えば、ハウジングの長さ寸法は約１５ｍｍ以下となっている）して図示し、また、図５〜図７の部品図を除いて細部を簡略化ている。以下の説明では、装置構造、組立、作動の順に詳述する。 The best mode of the present invention will be described below with reference to FIGS. In the drawings, the latch device is enlarged (for example, the length of the housing is about 15 mm or less), and the details are simplified except for the component drawings of FIGS. In the following description, the device structure, assembly, and operation will be described in detail.

（装置構造）形態のラッチ装置は、一端側を開口したハウジング１と、被係脱部材であるストライカー９と当接する突当部２２及びカム溝２７を有してハウジング１に対し進退可能に配置された摺動体２と、摺動体２に対し回転自在に支持されて、爪部３２を突当部２２の上に突出してストライカー９を係止可能にする係止位置及び突当部２２の上から退行する係止解除位置に切り換えられる係合体３と、摺動体２をハウジング１から突出する方向へ付勢しているばね部材４と、カム溝２７をトレースするピン部材５とを備え、摺動体２が押圧されてばね部材４の付勢力に抗して移動されると、その移動後の位置にカム溝２７及びピン部材５を介して保持され、かつ係合体３が係止解除位置から係止位置に切り換えられるプッシュ・プッシュ係止機構からなる。 The latch device in the form of (device structure) has a housing 1 that is open at one end, an abutting portion 22 that abuts against a striker 9 that is a member to be engaged and disengaged, and a cam groove 27 that can be moved forward and backward. The sliding body 2 that is formed, and a locking position that is supported rotatably with respect to the sliding body 2 and that allows the striker 9 to be locked by projecting the claw portion 32 onto the abutting portion 22 and above the abutting portion 22. The engagement body 3 is switched to the unlocking position retreating from the position, the spring member 4 biasing the sliding body 2 in the direction protruding from the housing 1, and the pin member 5 that traces the cam groove 27. When the moving body 2 is pressed and moved against the urging force of the spring member 4, the position after the movement is held via the cam groove 27 and the pin member 5, and the engaging body 3 is moved from the unlocking position. Push-push that can be switched to the locking position Consisting of a stop mechanism.

また、このラッチ装置は、例えば、図１（ｂ）の一点鎖線及び図２に示した機器類の本体７側に設けられた取付枠７ａに取り付けられ、図４（ａ）の一点鎖線で示した扉８に取り付けられたストライカー９を係脱する使用例だと、扉８が不図示の付勢手段の付勢力に抗して閉位置方向へ押されると、該扉８をストライカー９を介して係止し、更に扉８が同方向へ押されると、ストライカー９に対する係止を解除する。勿論、使用方法としては、ラッチ装置を扉等の可動体側に取り付けて、機器類の本体側に取り付けられる被係脱部材を係脱する構成でもよい。また、材質は、ハウジング１、摺動体２、係合体３は樹脂成形品であるが、樹脂以外でも差し支えない。 The latch device is attached to, for example, a one-dot chain line in FIG. 1B and a mounting frame 7a provided on the main body 7 side of the equipment shown in FIG. In the use example of engaging and disengaging the striker 9 attached to the door 8, when the door 8 is pushed in the direction of the closed position against the urging force of the urging means (not shown), the door 8 is moved through the striker 9. When the door 8 is further pushed in the same direction, the lock on the striker 9 is released. Of course, as a method of use, the latch device may be attached to the movable body side such as a door, and the engaged / disengaged member attached to the main body side of the equipment may be engaged / disengaged. Moreover, although the housing 1, the sliding body 2, and the engaging body 3 are resin molded products, materials other than resin may be used.

ここで、ハウジング１は、図３及び図５のごとく内部が上下壁１０，１１と、両側壁１２と、底壁１３とで区画形成され、一端側を開口した有底筒形となっている。また、ハウジング１は、両側壁１２の一端側を構成している外面１５が一段張り出していて図図のごとく本体側の取付枠７ａに抜け止め可能に挿入される。このうち、上壁１０の内面には、ピン規制用縦リブ１４がピン部材５のＵ形に対応して対に突設されている。各縦リブ１４は、底壁１３から前側に延び、かつ、後側が一段大きく張り出した状態に設けられて、図４（ａ）のごとくピン部材５のＵ形両側部５ｂを位置規制する。下壁１１には、前後中間に位置して摺動体２の移動範囲を規制する貫通されたガイド溝１１ａと、一端側からガイド溝１１ａに連通している浅い導入溝１１ｂと、内面両側に突設されて係合体３を係止解除方向へ回転可能にする張出部１６とが設けられている。両側壁１２には、出入口側枠部のうち両側面を一段膨出しかつ下角部を切り欠いたテーパー１５ａ付きの外面１５と、コ形スリット１２ａで区画されて先端側を外へ張り出している取付用の弾性係止爪１７と、矩形の４箇所の角部のうち対向壁の一方側（上側であるが下側でもよい）の各角部を前後略中間部から外面１５の手前まで切り欠いたテーパー１０ａと、テーパー１０ａより後側に設けられた切欠部１２ｂとが設けられている。両側壁１２の一端側内面には、逃げ凹部１２ｃがそれぞれ対向して設けられている。逃げ凹部１２ｃは、弾性係止爪１７などを形成するための成形型用の逃げである。 Here, as shown in FIGS. 3 and 5, the housing 1 has a bottomed cylindrical shape in which the inside is defined by upper and lower walls 10, 11, both side walls 12, and a bottom wall 13, and one end side is opened. . Further, the housing 1 has an outer surface 15 constituting one end side of both side walls 12 protruding one step, and is inserted into the mounting frame 7a on the main body side so as to be prevented from coming off as shown in the drawing. Among these, on the inner surface of the upper wall 10, pin restricting vertical ribs 14 project in pairs corresponding to the U shape of the pin member 5. Each vertical rib 14 extends from the bottom wall 13 to the front side, and is provided in a state in which the rear side protrudes one step larger, and restricts the U-shaped side portions 5b of the pin member 5 as shown in FIG. The lower wall 11 is located in the middle of the front and rear, and penetrates the guide groove 11a that restricts the moving range of the sliding body 2, the shallow introduction groove 11b that communicates with the guide groove 11a from one end side, and the inner wall protrudes on both sides. An overhanging portion 16 is provided that allows the engaging body 3 to rotate in the unlocking direction. The both side walls 12 are mounted with an outer surface 15 having a taper 15a with one side surface bulging out of the entrance / exit side frame portion and a lower corner portion cut out, and a U-shaped slit 12a and projecting the tip side outward. The elastic locking claw 17 and the corners on one side (upper side but lower side) of the opposing wall among the four corners of the rectangle are notched from the substantially front and rear intermediate portions to the front of the outer surface 15. Taper 10a and a notch 12b provided on the rear side of the taper 10a. Relief recesses 12c are respectively provided on the inner surfaces at one end of both side walls 12 so as to face each other. The relief recess 12c is a relief for a mold for forming the elastic locking claw 17 and the like.

底壁１３には、下両側に貫通された型抜き穴１３ａと、上両側に貫通された略Ｌ形のピン挿通穴１３ｂと、両ピン挿通穴１３ｂの間に小スリット１３ｃを介し区画形成された弾性挟持片１３ｄ，１３ｅと、内面に突出されたばね用支持軸１８などが設けられている。各ピン挿通穴１３ｂは、ピン部材５の線径よりも若干大きな穴幅からなり、略Ｕ形のピン部材５をこの穴からケース内へ挿入可能にする。弾性挟持片１３ｄ，１３ｅは、小隙間を介し対向配置され、ピン部材５のＵ形中間部５ａが図１（ｄ）のごとく前後方向より所定の挟持力で保持可能にする。支持軸１８は左右中間に突設されている。そして、弾性挟持片１３ｄ，１３ｅには、ピン部材５が枢支され、支持軸１８にはばね部材４が保持される。ばね部材４はコイルばねであり、下側が支持軸１８に軸装され、上側が後述する摺動体２の筒部２６内から係合体３の突片部３４に係止される。 The bottom wall 13 is formed with a die-cutting hole 13a penetrating on both lower sides, a substantially L-shaped pin insertion hole 13b penetrating on both upper sides, and a small slit 13c between the pin insertion holes 13b. The elastic clamping pieces 13d and 13e, the spring support shaft 18 protruding from the inner surface, and the like are provided. Each pin insertion hole 13b has a hole width slightly larger than the wire diameter of the pin member 5, and allows the substantially U-shaped pin member 5 to be inserted into the case from this hole. The elastic clamping pieces 13d and 13e are arranged to face each other through a small gap so that the U-shaped intermediate portion 5a of the pin member 5 can be held with a predetermined clamping force from the front-rear direction as shown in FIG. The support shaft 18 projects in the middle of the left and right. The pin member 5 is pivotally supported by the elastic clamping pieces 13 d and 13 e, and the spring member 4 is held by the support shaft 18. The spring member 4 is a coil spring, the lower side is mounted on the support shaft 18, and the upper side is locked to the protruding piece part 34 of the engaging body 3 from within a cylindrical part 26 of the sliding body 2 described later.

ところで、以上のハウジング１は、コンパクト化の観点から本体７側への取付構造として次のように工夫されている。すなわち、従来構造（例えば、特許文献１を参照）では、ハウジングが本体側取付枠に挿入操作で装着されるようにするため、ハウジングの出入口側外周を一段張り出した抜止用枠部と、上記した対向壁面に設けられた弾性係止爪（上記弾性係止爪１７と同じもの）とを有し、また、各特許文献１〜３では示されていないが位置決め用として断面凸状を長手方向（後側から抜止用枠部の手前）に設けその凸状を取付枠側の凹状に嵌合することもあった。しかし、この構造では、従来の抜止用枠部に代えてハウジング１の出入口側枠部のうち両側面１２，１２だけを一段膨出し、かつテーパー１５ａ付きの外面１５にすることで上下面１０，１１のスリム化を図った。また、従来の外面に長手方向に設けられる位置決め用凸状に代えて、ハウジング１を区画している筒部のうち対向壁の一方側の各角部（この例では上壁１０の両角部）を外面１５の手前まで切り欠いた位置決め用テーパー１０ａに形成することで外周のスリム化を図った。勿論、この構造では、取付枠７ａがハウジング１の断面と対応した嵌合穴６、つまりテーパー１０ａに対応する位置出し用のテーパー状角部６ａを必須としている。 By the way, the above housing 1 is devised as a mounting structure to the main body 7 side from the viewpoint of compactness as follows. That is, in the conventional structure (for example, refer to Patent Document 1), in order to mount the housing on the main body side mounting frame by the insertion operation, the retaining frame portion that projects the outer periphery of the inlet / outlet side of the housing, and the above-described It has an elastic locking claw (same as the elastic locking claw 17) provided on the opposite wall surface, and is not shown in each of Patent Documents 1 to 3, but has a convex section in the longitudinal direction for positioning ( The convex shape may be fitted to the concave shape on the mounting frame side from the rear side in front of the retaining frame portion. However, in this structure, instead of the conventional retaining frame portion, only the side surfaces 12 and 12 of the entrance / exit side frame portion of the housing 1 are expanded by one step, and the upper and lower surfaces 10 and 12 are formed as outer surfaces 15 with a taper 15a. 11 was slimmed. Further, instead of the conventional positioning projection provided in the longitudinal direction on the outer surface, each corner portion on one side of the opposing wall among the cylindrical portions defining the housing 1 (both corner portions of the upper wall 10 in this example). Was formed in the positioning taper 10a cut out to the front of the outer surface 15 to achieve a slim outer periphery. Of course, in this structure, the mounting frame 7a requires a fitting hole 6 corresponding to the cross section of the housing 1, that is, a tapered corner portion 6a for positioning corresponding to the taper 10a.

摺動体２は、図３及び図６のごとくハウジング１の出入口側に配置される略逆凹状の本体２０と、本体２０の後方に突設されて本体２０より幅細になっている後延長部２１とからなる。本体２０は、下向きに開放された略逆凹状の空洞部２４を区画し、前端面を突当部２２として設定し、かつ該前端面の下側部分から前方へ突設された枠部２３と、空洞部２４を区画している両側面２０ｂに対し同軸線上に設けた枢支部用の軸穴２４ａと、突当部２２と対向する後面側のうち後延長部２１を突出している部分の両側に形成された通し穴２０ｄとを有している。換言すると、本体２０の空洞部２４は、突当部２２及び上面２０ａ並びに両側面２０ｂ、後延長部２１の前端側で区画されている。上面２０ａは、前リブ及び後リブを有し、それらによりハウジング１内に配置されたとき良好な摺動特性が得られるようにしている。枠部２３は、後述する係合体３の爪部３２を余裕を持って出没可能な開口２３ａを形成している。 As shown in FIGS. 3 and 6, the sliding body 2 includes a substantially reverse concave main body 20 disposed on the entrance / exit side of the housing 1, and a rear extension that protrudes behind the main body 20 and is narrower than the main body 20. 21. The main body 20 defines a substantially inverted concave hollow portion 24 opened downward, a front end surface is set as the abutting portion 22, and a frame portion 23 protruding forward from a lower portion of the front end surface The shaft hole 24a for the pivot portion provided on the coaxial line with respect to both side surfaces 20b defining the cavity portion 24, and both sides of the portion projecting the rear extension portion 21 among the rear surface side facing the abutting portion 22 And a through-hole 20d formed in the above. In other words, the cavity portion 24 of the main body 20 is partitioned on the front end side of the abutting portion 22, the upper surface 20 a, both side surfaces 20 b, and the rear extension portion 21. The upper surface 20a has a front rib and a rear rib so that good sliding characteristics can be obtained when the upper surface 20a is disposed in the housing 1. The frame part 23 forms an opening 23a through which a claw part 32 of the engagement body 3 to be described later can be projected and retracted with a margin.

後延長部２１は、両側にハート形のカム溝２７を形成している上側部分２５と、その上側部分２５と同方向に延びる下側の筒部２６で構成されている。両側のカム溝２７は、図６（ｄ）のごとく略同形であり、凸状カム島２８の周りに設けられて、後側から前下側へ延びる誘導溝２７ａと、誘導溝２７ａの前側に位置して上下に別れている係止用誘導溝２７ｂ及び解除用誘導溝２７ｄと、誘導溝２７ｂ，２７ｄの間でかつ後側に位置した凹状係止溝２７ｃと、誘導溝２７ｄから後側へ延びる復帰溝２７ｅなどで構成されている。これに対し、筒部２６は、筒内が上記した支持軸１８及びばね部材４の上側を遊嵌可能な筒孔を形成しており、前下側に突設されて上記ガイド溝１１ａと嵌合される突起２６ａと、後上側で両側に向けて突設されているガイド用小翼２９とを有している。 The rear extension 21 includes an upper portion 25 having heart-shaped cam grooves 27 on both sides and a lower cylindrical portion 26 extending in the same direction as the upper portion 25. The cam grooves 27 on both sides have substantially the same shape as shown in FIG. 6D, are provided around the convex cam island 28, and extend from the rear side to the front lower side, and on the front side of the guide groove 27a. The guide groove 27b for release and the guide groove 27c for release which are separated from each other up and down, the concave lock groove 27c located between the guide grooves 27b and 27d and on the rear side, and the guide groove 27d to the rear side. The return groove 27e extends and the like. On the other hand, the cylinder portion 26 forms a cylinder hole in which the inside of the cylinder can be loosely fitted on the upper side of the support shaft 18 and the spring member 4, and is projected from the front lower side to fit into the guide groove 11a. It has a projection 26a to be joined, and a guide wing 29 projecting toward both sides on the rear upper side.

ところで、以上の摺動体２はコンパクト化の観点から次のように工夫されている。すなわち、この構造では、まず、摺動体２がハウジング１に対し後述する係合体３の係止解除位置でハウジング外へ突出されるようにし、それによりハウジング１の長さ方向の寸法を短縮可能にしている。加えて、摺動体２は、本体２０の後方に突出されて本体より幅細になるよう切り欠かれた逃げ部及びカム溝２８を形成している後延長部２１を有している。また、本体２０は、突当部２２の後方側に設けられて少なくとも両側面２０ｂで区画された空洞部２４と、各側面２０ｂに設けられた枢支部用軸穴２４ａとを有している。つまり、この構造では、枢支部用軸穴２４ａ（軸穴２４ａに代えて軸部でもよい）が突当部２２の後方ないしは真下に設けられているため、係合体３が摺動体の内側に対応部をより入り込むようにし、それにより摺動体２に係合体３を枢支した状態での幅方向ないしは厚さ方向の寸法を短縮可能にしたり、係合体３の大きさや形状に自由度を拡大してコンパクト化し易くしている。 By the way, the above sliding body 2 is devised as follows from a viewpoint of compactness. That is, in this structure, first, the sliding body 2 is projected out of the housing at the unlocking position of the engaging body 3 to be described later with respect to the housing 1, thereby making it possible to shorten the length of the housing 1 in the length direction. ing. In addition, the sliding body 2 has a rear extension portion 21 that forms a relief portion and a cam groove 28 that are protruded rearward of the main body 20 and cut out so as to be narrower than the main body. Moreover, the main body 20 has a cavity portion 24 provided on the rear side of the abutting portion 22 and defined by at least both side surfaces 20b, and pivot support shaft holes 24a provided on the side surfaces 20b. In other words, in this structure, the pivotal support shaft hole 24a (a shaft portion may be used instead of the shaft hole 24a) is provided behind or directly below the abutting portion 22, so that the engagement body 3 corresponds to the inside of the sliding body. So that the dimension in the width direction or the thickness direction in a state where the engaging body 3 is pivotally supported by the sliding body 2 can be shortened, or the degree of freedom is increased in the size and shape of the engaging body 3. To make it more compact.

ピン部材５は、従来と同様に、図３のごとくＵ形の中間部５ａと、両側部５ｂと、各側部５ｂの自由端側を内側に折り曲げた先端５ｃとからなり、Ｕ形の上幅寸法が下幅寸法よりも若干大きく形成されている。下幅寸法は、ハウジング１内にあって、両側壁２１の内面間の幅寸法にほぼ一致している。 As in the prior art, the pin member 5 comprises a U-shaped intermediate portion 5a, both side portions 5b, and a tip 5c bent inward at the free end side of each side portion 5b as shown in FIG. The width dimension is formed slightly larger than the lower width dimension. The lower width dimension is in the housing 1 and substantially coincides with the width dimension between the inner surfaces of the side walls 21.

係合体３は、図３と図８のごとく前板部３０と、前板部３０から後方向へ突設した後片部３１，３１とからなる。前板部３０には、上側に突出した爪部３２と、爪部３２と所定隙間を保ちかつ該爪部と同方向に突出された突出部３３と、後端面の左右中間に突出されて前記した筒部２６の筒内に入る突片部３４とが設けられている。爪部３２は、摺動体側の開口２３ａに自在に進入されたり退行される大きさとなっている。両突出部３３には、枢支用軸部３５が同軸線上に突出形成されている。両後片部３１の後外側面には凸部３６がそれぞれ設けられている。 As shown in FIGS. 3 and 8, the engagement body 3 includes a front plate portion 30 and rear piece portions 31, 31 protruding rearward from the front plate portion 30. The front plate part 30 has a claw part 32 protruding upward, a protrusion part 33 that protrudes in the same direction as the claw part 32 while maintaining a predetermined gap with the claw part 32, and is protruded in the left and right middle of the rear end surface. A projecting piece portion 34 that enters the cylinder of the cylinder portion 26 is provided. The nail | claw part 32 is a magnitude | size which can be freely entered into or retracted into the opening 23a on the sliding body side. The two projecting portions 33 are formed with pivot shaft portions 35 projecting on the same axis. Convex portions 36 are respectively provided on the rear outer surfaces of both rear piece portions 31.

ところで、以上の係合体３はコンパクト化の観点から次のように工夫されている。すなわち、この構造では、爪部３２、及び爪部３２と所定隙間を保ちかつ該爪部と同方向に突出されて枢支部用軸部３５（軸穴でもよい）を形成している突出部３３を有し、摺動体側本体２０に対し枢支（軸部３５と軸穴２４との嵌合）されて係止位置に配置された状態で爪部３２と突出部３３との間に突当部２２を位置させ、係止解除位置に配置された状態で摺動体側後延長部２１の細くなった部分、上記した逃げ部（図６（ｃ）を参照）に後片部３１及び凸部３６を逃がすようにしている。このため、ラッチ装置としては、係合体３を摺動体２の内側に対応部をより入り込むようにして摺動体２に対し係合体３を支持した状態での幅方向ないしは厚さ方向の寸法を短縮容易にしたり、係合体３の回転中心（軸穴２４に嵌合している軸部３５）を突当部２２の後方ないしは真下に設定することになるので係合体３の形状として、枢支部である軸部３５と爪部３２の間の距離、軸部３５と凸部３６の間の距離などを任意に設定し、それらによりコンパクト化し易くしている。 By the way, the above engagement body 3 is devised as follows from the viewpoint of compactness. In other words, in this structure, the claw portion 32 and the projection portion 33 that maintains a predetermined gap with the claw portion 32 and projects in the same direction as the claw portion to form a pivot portion shaft portion 35 (may be a shaft hole). And is abutted between the claw portion 32 and the projecting portion 33 in a state where it is pivotally supported (fitted with the shaft portion 35 and the shaft hole 24) with respect to the sliding body side main body 20 and disposed at the locking position. The portion 22 is positioned and the rear piece portion 31 and the convex portion are formed on the narrowed portion of the sliding body side rear extension portion 21 in the state where the portion 22 is disposed at the unlocking position, the above-described relief portion (see FIG. 6C). I try to escape 36. For this reason, as a latch apparatus, the dimension of the width direction or thickness direction in the state which supported the engaging body 3 with respect to the sliding body 2 by making the corresponding part enter the inside of the sliding body 2 more, and shortened the dimension of the thickness direction. Since the center of rotation of the engaging body 3 (the shaft portion 35 fitted in the shaft hole 24) is set behind or just below the abutting portion 22, the shape of the engaging body 3 is A distance between a certain shaft portion 35 and the claw portion 32, a distance between the shaft portion 35 and the convex portion 36, and the like are arbitrarily set to facilitate the downsizing.

（組立）以上の各部材は、例えば、係合体３がまず摺動体２に組み付けられる。この作業では、図３の状態から両側の軸部３５を摺動体２の空洞部内から軸穴２４ａに押し込める。すると、係合体３は、軸部３５を支点として、所定範囲だけ回転自在に枢支され、爪部３２が図２（ｂ）及び図４（ｃ）のごとく開口２３ａ内に収まった係止解除位置と、図２（ａ）及び図４（ａ）のごとく開口２３ａから突出されてストライカー９の凸部又は爪９ａを上から押さえる係止位置とに切換可能となる。また、以上の係合体３は、摺動体側本体２０に対し軸穴２４ａと軸部３５の嵌合を介して枢支されて、爪部３２が開口２３ａから突当部２２上に突出された係止位置に配置された状態で、爪部３２と突出部３３との間に突当部２２を位置させ、爪部３２が開口２３ａ内に退行して係止解除位置に配置された状態で後延長部２１の細くなった逃げ部に対応部を逃がす。 (Assembly) In each of the above members, for example, the engaging body 3 is first assembled to the sliding body 2. In this operation, the shaft portions 35 on both sides are pushed into the shaft hole 24a from the inside of the hollow portion of the sliding body 2 from the state of FIG. Then, the engaging body 3 is pivotally supported by a predetermined range with the shaft portion 35 as a fulcrum, and the claw portion 32 is unlocked within the opening 23a as shown in FIGS. 2 (b) and 4 (c). As shown in FIGS. 2 (a) and 4 (a), the position can be switched to a locking position that protrudes from the opening 23a and presses the convex portion of the striker 9 or the claw 9a from above. Further, the above engaging body 3 is pivotally supported on the sliding body side main body 20 through the fitting of the shaft hole 24a and the shaft portion 35, and the claw portion 32 protrudes from the opening 23a onto the abutting portion 22. In a state where the abutting portion 22 is positioned between the claw portion 32 and the protruding portion 33 in a state where the claw portion 32 is disposed at the locking position, the claw portion 32 is retracted into the opening 23a and is disposed at the locking release position. The corresponding portion is allowed to escape to the narrow relief portion of the rear extension 21.

次に、以上の係合体３付きの摺動体２はハウジング１内に組み付けられる。この作業では、例えば、予めばね部材４を支持軸１８に軸装し、ピン部材５を底壁１３に揺動可能に保持した状態にしてそれぞれハウジング１内に配置しておく。ピン部材５は、両側の先端５ｃを各ピン挿通穴１３ｂからハウジング内に挿入してから、Ｕ形中間部５ａを弾性挟持片１３ｄ，１３ｅ側に強制的に移動することにより、その両挟持片の間に挟持される。この挟持状態では、ピン部材５がハウジング１内に起立保持され、Ｕ形両側部５ｂが規制用縦リブ１４と対応内側面との間に位置規制される。また、係合体３付きの摺動体２は、ハウジング１内に押し入れられると、突起２６ａが導入溝１１ｂからガイド溝１１ａに落ち込んで嵌合されたときに、ハウジング１に対し抜け止めされて組み付けられる。この押し入れ過程では、ばね部材４の上側が筒部２６内に入り、係合体３の突片部３４に当接する。そして、ばね部材４は、摺動体２が奥へ押圧移動される過程で付勢力を増大し、該付勢力によって係合体３を軸部３５を支点として係止位置方向へ回転可能にする。また、ピン部材５の両先端５ｃは、対応するカム溝２７の溝入口に入る。 Next, the sliding body 2 with the engaging body 3 is assembled in the housing 1. In this operation, for example, the spring member 4 is mounted on the support shaft 18 in advance, and the pin member 5 is swingably held on the bottom wall 13 and disposed in the housing 1. The pin member 5 is formed by inserting the distal ends 5c on both sides into the housing from the pin insertion holes 13b and then forcibly moving the U-shaped intermediate portion 5a toward the elastic clamping pieces 13d and 13e. Is sandwiched between. In this clamping state, the pin member 5 is held upright in the housing 1, and the U-shaped side portions 5b are regulated between the regulating vertical rib 14 and the corresponding inner side surface. Further, when the sliding body 2 with the engaging body 3 is pushed into the housing 1, the sliding body 2 is prevented from being detached from the housing 1 and assembled when the protrusion 26 a is fitted into the guide groove 11 a from the introduction groove 11 b. . In this pushing-in process, the upper side of the spring member 4 enters the cylindrical portion 26 and comes into contact with the protruding piece portion 34 of the engaging body 3. The spring member 4 increases the urging force in the process in which the sliding body 2 is pressed and moved to the back, and the urging force enables the engaging body 3 to rotate in the locking position direction with the shaft portion 35 as a fulcrum. Further, both ends 5 c of the pin member 5 enter the groove entrance of the corresponding cam groove 27.

（作動）完成されたラッチ装置は、使用態様として、例えば、図４（ａ）のごとく扉８に取り付けられたストライカー９に対応して、図１（ｂ）のごとく機器類側本体７に設けられた取付枠７ａに挿入され弾性係止爪１７等を介し取り付けられる。取付状態において、ラッチ装置は、通常、図２（ｂ）のごとく摺動体２がばね部材４により突出方向へ付勢移動（この移動は突起２６ａがガイド溝１１ａの前端面に当たることで規制される）されると共に、爪部３２が摺動体側開口２３ａ内に入る方向へ回転（この回転は凸部３６が張出部１６の最も高くなった箇所に乗り上げる）されている。この状態が「係合体３の係止解除位置」である。そして、扉８が閉方向である図４（ａ）の左矢印方向に押し操作されると、摺動体２はストライカー９によりばね部材４の付勢力に抗してハウジング内に没する方向へ押圧移動される。その移動過程では係合体３が軸部３５を支点として係止位置方向へ回転される。すると、係合体３は、凸部３６が張出部１６の低い側へ弾性的に移行し、同時にストライカーの爪９ａを爪部３２を介して抜け止めする。このとき、係合体３は、図４（ａ）のごとくピン部材５の各先端５ｃが摺動体２及び係合体３の後方移動によって上記した誘導溝２７ａから係止用誘導溝２７ｂに入り、左矢印方向の押圧力を解放したときに、係止溝２７ｃに係止される。この係止により、扉８が閉状態に保持（ロック）される。 (Operation) The completed latch device is provided in the apparatus-side main body 7 as shown in FIG. 1 (b) corresponding to the striker 9 attached to the door 8 as shown in FIG. 4 (a). It is inserted into the attached mounting frame 7a and attached via an elastic locking claw 17 or the like. In the mounted state, the latch device is normally regulated by the sliding member 2 being urged in the protruding direction by the spring member 4 as shown in FIG. 2B (this movement is controlled by the protrusion 26a hitting the front end surface of the guide groove 11a). ) And the claw portion 32 is rotated in a direction in which the claw portion 32 enters the sliding body side opening 23a (this rotation rides on the highest portion of the protruding portion 16). This state is the “lock release position of the engagement body 3”. When the door 8 is pushed in the direction of the left arrow in FIG. 4A, which is the closing direction, the sliding body 2 is pushed by the striker 9 in the direction of sunk in the housing against the urging force of the spring member 4. Moved. In the moving process, the engaging body 3 is rotated in the locking position direction with the shaft portion 35 as a fulcrum. Then, in the engaging body 3, the convex portion 36 elastically shifts to the lower side of the overhang portion 16, and at the same time, the striker claw 9 a is prevented from coming off via the claw portion 32. At this time, as shown in FIG. 4 (a), the engagement body 3 enters the locking guide groove 27b from the guide groove 27a through the sliding body 2 and the rearward movement of the engagement body 3 as shown in FIG. When the pressing force in the direction of the arrow is released, it is locked in the locking groove 27c. By this locking, the door 8 is held (locked) in the closed state.

以上の扉保持状態から図４（ｃ）の解除状態に切り換えるときは、図４（ｂ）のごとく扉を閉じ方向へ押した後、該押し力を解放する。すると、ピン部材５の両先端５ｃは、上記した係止溝２７ｃから上記した解除用誘導溝２７ｄ、復帰溝２７ｅを経て再び誘導溝２７ａから溝入口に戻り、同時に、係合体３が当初の解除位置に切り換えられる。 When switching from the above-described door holding state to the release state of FIG. 4C, the pushing force is released after the door is pushed in the closing direction as shown in FIG. 4B. Then, both ends 5c of the pin member 5 return to the groove inlet from the guide groove 27a through the release guide groove 27d and the return groove 27e described above from the above-described locking groove 27c, and at the same time, the engagement body 3 is released from the initial state. Switch to position.

なお、従来のラッチ装置では、係合体が係止位置においてその爪部を摺動体の開口内面に摩擦接触しているため、寒冷地等の過酷な環境下で用いられると、回転し難くなって正常な係止作動、つまり係止解除位置から係止位置に切り換えられなくなる虞があった。これに対し、以上の構造では、係合体３が爪部３２と所定隙間を保ちかつ該爪部と同方向に突出されて枢支部用の軸部３５を形成している突出部３３を有し、摺動体２に対し回転自在に支持され前記係止位置に配置された状態で爪部３２と突出部３３との間に突当部２２が位置していたり、或いは、摺動体２がハウジング１の出入口側に配置される突当部２２、ハウジング１の奥側に配置されるカム溝２７、突当部２２とカム溝２７との間に設けられた枢支部用軸穴２４ａとを有している。これにより、このラッチ装置では、図４（ａ）のごとく扉８の閉状態（係合体３が係止位置）で該扉を開こうとする外力、つまり同図の右矢印方向の外力が作用したとき、同（ｄ）ごとく係合体３を係止解除する方向へ回転しようとする応力が従来構造に比べて加わりに難くなる。 In the conventional latch device, since the engaging body is in frictional contact with the inner surface of the opening of the sliding body at the locking position, it becomes difficult to rotate when used in a severe environment such as a cold region. There is a risk that the normal locking operation, that is, switching from the unlocking position to the locking position may not be performed. On the other hand, in the above structure, the engaging body 3 has the protruding portion 33 that maintains a predetermined gap with the claw portion 32 and protrudes in the same direction as the claw portion to form the shaft portion 35 for the pivot portion. The abutting portion 22 is positioned between the claw portion 32 and the projecting portion 33 in a state where the sliding body 2 is rotatably supported with respect to the sliding body 2, or the sliding body 2 is disposed in the housing 1. And a cam groove 27 disposed on the back side of the housing 1, and a pivot shaft hole 24a provided between the abutment 22 and the cam groove 27. ing. Thus, in this latch device, as shown in FIG. 4A, an external force that opens the door 8 when the door 8 is closed (engagement body 3 is in the locked position), that is, an external force in the right arrow direction in FIG. Then, as in (d), it is difficult to apply a stress to rotate the engagement body 3 in the unlocking direction as compared with the conventional structure.

換言すると、この構造では、図４（ｄ）に示した係合体３の係止位置において、扉８に対し扉開方向に過大な外力が作用したとき、係合体３が爪部３２を突当部２２上から退行するよう回転、つまり係止解除位置に切り換えられるようにする、いわゆる無理抜き対応のラッチ装置とする場合、ストライカー側爪９ａに対する爪部３２の当接面又は／及び爪部３２に対するストライカー側爪９ａの当接面に無理抜き度合いに応じて抜け易くなる方向の勾配を設定することで対応可能となる。 In other words, in this structure, when an excessive external force is applied to the door 8 in the door opening direction at the engagement position of the engagement body 3 shown in FIG. In the case of a latch device that can be rotated so as to retreat from above the portion 22, that is, can be switched to the unlocking position, that is, a so-called unreasonable latch device, the contact surface of the claw portion 32 with the striker side claw 9 a and / or the claw portion 32 It is possible to cope with this by setting a gradient in a direction in which the striker side claw 9a easily comes off according to the degree of unreasonable removal.

なお、本発明は以上の形態に制約されることなく、請求項で特定される要件を備えておれば種々変更可能なものである。その一例として、係合体３を摺動体２に枢支する構造としては、摺動体２には軸穴２４ａに代えて軸部を設け、係合体３には軸部３５に代えて軸穴を設けて、係合体３を摺動体２に対しそれら軸部及び軸穴の嵌合を介して枢支するようにしたり、更に摺動体２及び係合体３に共に軸穴を設けて、係合体３を摺動体２に対しそれら軸穴同士に挿通されるシャフトを介して枢支する構成でもよい。 The present invention is not limited to the above-described embodiments, and various modifications can be made as long as the requirements specified in the claims are provided. As an example, the structure in which the engaging body 3 is pivotally supported by the sliding body 2 is provided with a shaft portion instead of the shaft hole 24a, and the engaging body 3 is provided with a shaft hole instead of the shaft portion 35. Then, the engaging body 3 is pivotally supported with respect to the sliding body 2 through the fitting of the shaft portion and the shaft hole, and both the sliding body 2 and the engaging body 3 are provided with shaft holes. A configuration may be adopted in which the sliding body 2 is pivotally supported via a shaft inserted through the shaft holes.

本発明形態のラッチ装置を係合体の係止位置で示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は側面図、（ｄ）は背面図である。The latch apparatus of this invention form is shown by the latching position of an engaging body, (a) is a front view, (b) is a top view, (c) is a side view, (d) is a rear view. （ａ）は図１のラッチ装置を本体側取付枠と共に示す概略斜視図、（ｂ）は上記係合体を係止解除位置に切り換えた状態での概略斜視図である。(A) is a schematic perspective view which shows the latch apparatus of FIG. 1 with a main body side attachment frame, (b) is a schematic perspective view in the state which switched the said engaging body to the latch release position. 上記ラッチ装置の部材同士の関係を示す概略分解図である。It is a schematic exploded view which shows the relationship between the members of the said latch apparatus. 上記ラッチ装置の通常作動を図１のＡ−Ａ線断面図で示し、（ａ）は上記係合体を係止位置に切り換えた状態での図、（ｂ）は上記係合体を係止解除するときの状態での図、（ｃ）は上記係合体を係止解除位置に切り換えた状態での図、（ｄ）はストライカーが引き抜き方向の外力を受けて無理抜きした状態での図である。The normal operation of the latch device is shown in a cross-sectional view along the line A-A in FIG. 1, (a) is a diagram in a state in which the engaging body is switched to the locking position, and (b) is the unlocking of the engaging body. (C) is a figure in the state which switched the said engaging body to the latch release position, (d) is a figure in the state which pulled out by the striker receiving the external force of the extraction direction. 上記ラッチ装置のハウジング単品を示し、（ａ）は側面図、（ｂ）は正面図、（ｃ）は（ａ）Ｂ−Ｂ線断面図、（ｄ）は（ｂ）Ｃ−Ｃ線断面図である。The housing of the said latch apparatus is shown separately, (a) is a side view, (b) is a front view, (c) is (a) BB sectional drawing, (d) is (b) CC sectional view. It is. 上記ラッチ装置の摺動体単品を示し、（ａ）は上面図、（ｂ）は側面図、（ｃ）は下面図、（ｄ）は背面図、（ｅ）は（ｄ）Ｄ−Ｄ線断面図である。1A shows a single sliding body of the latch device, FIG. 3A is a top view, FIG. 3B is a side view, FIG. 3C is a bottom view, FIG. 3D is a rear view, and FIG. FIG. 上記ラッチ装置の係合体単品を示し、（ａ）は上面図、（ｂ）は背面図、（ｃ）は側面図、（ｄ）は正面図、（ｅ）は下面図である。The engaging body single item of the said latch apparatus is shown, (a) is a top view, (b) is a rear view, (c) is a side view, (d) is a front view, (e) is a bottom view. （ａ），（ｂ）従来のラッチ装置を係止解除位置及び係止位置で示す作動図である。(A), (b) It is an operation | movement figure which shows the conventional latch apparatus in the latch release position and a latching position.

符号の説明Explanation of symbols

１…ハウジング（１１ａはカイド溝、１３は底壁、１６は張出部、１８は支持軸）
２…摺動体（２０は本体、２２は突当部、２３は枠部、２４ａは軸穴）
３…係合体（３０は前板部、３１は後片部、３２は爪部、３３は突出部）
４…ばね部材
５…ピン部材（５ａは中間部、５ｂは側部、５ｃは先端）
７…機器類の本体（７ａは取付枠）
８…扉（９は被係脱部材であるストライカー）
２１…後延長部（２５は上側部分、２６は筒部）
２７…カム溝（２７ｃは係止溝）
３５…軸部 1 ... Housing (11a is a guide groove, 13 is a bottom wall, 16 is an overhang part, 18 is a support shaft)
2 ... Sliding body (20 is a main body, 22 is an abutting part, 23 is a frame part, 24a is a shaft hole)
3 ... engaging body (30 is front plate part, 31 is rear piece part, 32 is claw part, 33 is protrusion part)
4 ... Spring member 5 ... Pin member (5a is an intermediate part, 5b is a side part, and 5c is a tip)
7 ... Main body of equipment (7a is a mounting frame)
8 ... Door (9 is a striker which is a member to be engaged / disengaged)
21 ... rear extension part (25 is an upper part, 26 is a cylinder part)
27 ... Cam groove (27c is a locking groove)
35 ... Shaft

Claims

ハウジングと、被取付部材と当接する突当部及びカム溝を有して前記ハウジングに対し進退可能に配置された摺動体と、前記摺動体を前記ハウジングから突出する方向へ付勢しているばね部材と、前記摺動体に対し回転自在に支持されて、先端側の爪部を前記突当部上に突出して被係脱部材を係止可能にする係止位置及び前記突当部上から退行される係止解除位置に切り換えられる係合体と、前記カム溝をトレースするピン部材とを備え、前記摺動体が押圧されて前記ばね部材の付勢力に抗して移動されると、その移動後の位置に前記カム溝及びピン部材を介して保持され、かつ前記係合体が係止解除位置から係止位置に切り換えられるラッチ装置において、
前記係合体は、前記爪部、及び前記爪部と所定隙間を保ちかつ該爪部と同方向に突出されて前記摺動体に回転自在に支持する枢支部を形成している突出部を有し、前記摺動体に対し支持され前記係止位置に配置された状態で前記爪部と前記突出部との間に前記突当部が位置していることを特徴とするラッチ装置。 A housing, a sliding body that has an abutting portion and a cam groove that come into contact with the mounted member, and is arranged so as to be able to advance and retreat with respect to the housing, and a spring that biases the sliding body in a direction in which the sliding body projects from the housing A locking position that is rotatably supported with respect to the member and the sliding body, and that projects the tip-side claw portion onto the abutting portion so that the engaged / disengaged member can be engaged, and retreats from the abutting portion And a pin member that traces the cam groove, and when the sliding body is pressed and moved against the biasing force of the spring member, In the latch device that is held via the cam groove and the pin member, and the engaging body is switched from the unlocking position to the locking position,
The engaging body has a claw part and a projecting part that forms a pivotal part that maintains a predetermined gap with the claw part and projects in the same direction as the claw part and rotatably supports the sliding body. The latch device is characterized in that the abutting portion is positioned between the claw portion and the protruding portion in a state of being supported by the sliding body and disposed at the locking position.

ハウジングと、被取付部材と当接する突当部及びカム溝を有して前記ハウジングに対し進退可能に配置された摺動体と、前記摺動体を前記ハウジングから突出する方向へ付勢しているばね部材と、前記摺動体に対し回転自在に支持されて、先端側の爪部を前記突当部上に突出して被係脱部材を係止可能にする係止位置及び前記突当部上から退行される係止解除位置に切り換えられる係合体と、前記カム溝をトレースするピン部材とを備え、前記摺動体が押圧されて前記ばね部材の付勢力に抗して移動されると、その移動後の位置に前記カム溝及びピン部材を介して保持され、かつ前記係合体が係止解除位置から係止位置に切り換えられるラッチ装置において、
前記摺動体は、前記ハウジングの出入口側に配置される前記突当部と、前記ハウジングの奥側に配置される前記カム溝と、前記突当部と前記カム溝との間に少なくとも一部が配置されるよう設けられて前記係合体を回転自在に支持する枢支部とを有していることを特徴とするラッチ装置。 A housing, a sliding body that has an abutting portion and a cam groove that come into contact with the mounted member, and is arranged so as to be able to advance and retreat with respect to the housing, and a spring that biases the sliding body in a direction in which the sliding body projects from the housing A locking position that is rotatably supported with respect to the member and the sliding body, and that projects the tip-side claw portion onto the abutting portion so that the engaged / disengaged member can be engaged, and retreats from the abutting portion And a pin member that traces the cam groove, and when the sliding body is pressed and moved against the biasing force of the spring member, In the latch device that is held via the cam groove and the pin member, and the engaging body is switched from the unlocking position to the locking position,
The sliding body includes at least a part between the abutting portion disposed on the entrance / exit side of the housing, the cam groove disposed on the back side of the housing, and the abutting portion and the cam groove. A latch device comprising: a pivot portion provided to be disposed and rotatably supporting the engaging body.

請求項１又は２において、前記摺動体は、略逆凹状の本体と、前記本体の後方に突出されて幅細となった箇所に前記カム溝を形成している後延長部とを有し、前記本体の逆凹状の前端面を前記突当部とし、前記両側面に枢支部用軸穴又は軸部を形成しており、
前記係合体は、前記爪部を設けた前板部と、前記前板部から後方向へ突設した後片部と、前記後片部の側面に設けられた凸部とを有し、前記凸部が前記後延長部の幅細となった箇所へ移行しながら前記ハウジング内に設けられた張出部に乗り上げることで前記係止位置から係止解除位置に切り換えられることを特徴とするラッチ装置。 In Claim 1 or 2, the slide body has a substantially reverse concave main body, and a rear extension part that forms the cam groove in a narrowed portion protruding rearward of the main body, The front end surface of the main body having a reverse concave shape is the abutting portion, and a pivot hole or a shaft portion is formed on both side surfaces,
The engaging body includes a front plate portion provided with the claw portion, a rear piece portion protruding rearward from the front plate portion, and a convex portion provided on a side surface of the rear piece portion, A latch that is switched from the locking position to the locking release position by riding on a protruding portion provided in the housing while the convex portion moves to the narrowed portion of the rear extension. apparatus.