JPH0515019Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） この考案は、扉等の閉鎖体の適宜個所にラツチ
ボルトを２個以上設け、２個所以上で同時に施解
錠できるようにした扉錠に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a door lock in which two or more latch bolts are provided at appropriate locations on a closing body such as a door, so that the lock can be locked and unlocked at two or more locations simultaneously.

（従来の技術） 従来、この種の錠としては、(イ)本願出願人の出
願に係る実公昭61−27429号公報記載のもの、(ロ)
特開昭53−111899号公報記載のもの、(ハ)実開昭55
−160463号公報記載のもの、(ニ)実開昭57−80566
号公報記載のもの、(ホ)実開昭58−39960号公報記
載のもの、の如く３個所で施錠できるようにした
ものが知られている。(Prior Art) Conventionally, this type of lock has been (a) described in Japanese Utility Model Publication No. 61-27429 filed by the applicant, and (b)
What is described in JP-A-53-111899, (c) Utility Model Application Publication No. 1982-111899
-Things described in Publication No. 160463, (d) Utility Model Application Publication No. 57-80566
There are known devices that can be locked in three places, such as the one described in Japanese Utility Model Publication No. 58-39960 and the one described in (e) Japanese Utility Model Publication No. 58-39960.

上記(イ)のものは、一般に使用されるラツチボル
トのラツチハブに、左方向の回動によりラツチ柄
の後端を押しラツチボルトを最大量突出させる押
圧突起と、左右の回動により錠ケースの縦方向に
内装されたスライダーを上下摺動させる作動突起
とを形成した特殊な構造とするとともに、前記ス
ライダーの上下両端部には連結杆を結合し、この
連結杆にはラツクとピニオンの伝動機構を介して
間接に或いは直接に２個のデツドボルトを取着し
てなり、前記１個のラツチボルトだけで仮施錠す
る一方、ラツチボルトを出没させるレバーハンド
ルを最大突出方向に回動することにより、該ラツ
チボルトをラツチハブの押圧突起でラツチ柄の後
端を押して最大量突出させて本施錠状態にすると
ともに、前記スライダー及び連結杆の上動により
他の２個のデツドボルトを本施錠して３個所で本
施錠を行うとともに、レバーハンドルを解錠方向
に回動することにより前記ラツチボルト及び２個
のデツドボルトを解錠できるようにしてなるもの
である。 The latch hub of a commonly used latch bolt has a pressing protrusion that pushes the rear end of the latch handle by rotating to the left and causes the latch bolt to protrude the maximum amount. The slider has a special structure with an operating protrusion that allows the slider to slide up and down, and a connecting rod is connected to both the upper and lower ends of the slider, and a rack and pinion transmission mechanism is connected to the connecting rod. Two dead bolts are attached indirectly or directly to the latch hub, and while the latch bolt is temporarily locked with only the one latch bolt, by rotating the lever handle that makes the latch bolt appear and retract in the direction of maximum protrusion, the latch bolt is attached to the latch hub. Press the rear end of the latch handle with the pressing protrusion to make it protrude to the maximum extent and enter the fully locked state, and the other two dead bolts are fully locked by the upward movement of the slider and connecting rod to fully lock at three locations. Additionally, the latch bolt and two dead bolts can be unlocked by rotating the lever handle in the unlocking direction.

(ロ)，(ハ)，(ニ)はいずれも、回転板に回転中心から
偏位した位置にピンにより複数（３本）のロツド
を枢着し、操作部材により回転板を回動すること
により、相手方の枠体の受孔に前記ロツドの先端
係合部を係脱自在に係合して施解錠する構成であ
つて、錠杆はすべてロツドの先端を用いるもので
ある。 In (b), (c), and (d), multiple (three) rods are pivotally attached to the rotary plate at positions offset from the rotation center using pins, and the rotary plate is rotated by an operating member. Accordingly, the lock is locked and unlocked by releasably engaging the end engaging portion of the rod with the receiving hole of the other frame, and all locks use the end of the rod.

(ホ)は、一個所にラツチ錠を使用しているが、上
下の錠杆は上記(イ)〜(ニ)の如くロツドを使用してい
るとともに、上下両方のロツドは基端部をレバー
に連結し該レバーをラツチに連係させ、この１個
のラツチ錠のバネによつて上下のロツドを突出作
動させて施錠する一方、ハンドルの引き操作によ
つてラツチと上下両方のロツドを後退させて解錠
する構成である。 (E) uses a latch lock in one place, but the upper and lower locks use rods as in (A) to (D) above, and both the upper and lower rods have their proximal ends connected to levers. The lever is connected to the latch, and the spring of this single latch lock causes the upper and lower rods to protrude and lock, while the latch and both the upper and lower rods are moved back by pulling the handle. It is configured to be unlocked by pressing the key.

（考案が解決しようとする問題点） しかるに、上記従来例(イ)のものは、閉扉と同時
に施錠されるのは、ラツチボルトによる１個所だ
けであつて３個所で施錠することはできない。３
個所で施錠する場合には、閉扉後レバーハンドル
を施錠方向に回動するか又はシリンダーへのキー
操作による如く、施錠操作したときだけ３個所で
施錠されるものであり、その施錠操作が煩わしい
ばかりか、閉扉と同時に３個所で自動的に施錠す
ることはできない問題点があつた。(Problems to be Solved by the Invention) However, in the conventional example (a), the door is locked at only one location using the latch bolt at the same time as the door is closed, and cannot be locked at three locations. 3
When locking at three locations, the door is locked at three locations only when the door is locked, such as by rotating the lever handle in the locking direction after closing the door, or by operating a key on the cylinder, which is very cumbersome. However, there was a problem that the door could not be automatically locked in three places at the same time as the door was closed.

また、大きな扉、高圧室の扉、真空室の扉など
に使用した場合には、スライダー及び連結杆が大
重量であつたり、室内の圧力や風圧などにより、
扉を開閉してレバーハンドルやキーを操作するの
に大きな力を要するなどの問題点があつた。 In addition, when used for large doors, high-pressure chamber doors, vacuum chamber doors, etc., the slider and connecting rod may be heavy and may be damaged due to indoor pressure or wind pressure.
There were problems such as a large amount of force being required to open and close the door and operate the lever handle and key.

従来例(ロ)、(ハ)、(ニ)のものは、閉扉後に操作部材
を施錠方向に回動したときにだけ３個所で施錠さ
れるものであり、その施錠操作が煩わしい上に、
閉扉と同時に３個所で自動的に施錠することはで
きないものであつた。 Conventional examples (b), (c), and (d) are locked at three locations only when the operating member is rotated in the locking direction after the door is closed, and the locking operation is cumbersome and
It was not possible to automatically lock the door at three locations at the same time as the door was closed.

また、錠杆はすべてがロツドの先端部を用いる
ものであるため、該ロツドの先端部と相手方の枠
体の受孔との寸法誤差や使用中における風圧等の
外力の影響により、ロツドの先端部が受孔に係入
し難くなつたりする欠点があつた。 In addition, since all locks use the tip of the rod, the tip of the rod may be damaged due to dimensional errors between the tip of the rod and the receiving hole of the mating frame, or due to external forces such as wind pressure during use. There was a drawback that it became difficult for the part to fit into the receiving hole.

さらに、３本のロツドの基端部を連結した回転
板を操作部材を介して回動することにより、枠体
の受孔より各ロツドの先端係合部を係合して施錠
し、又は係合を解除して解錠する構成であるた
め、操作部材に対する回動操作が重いという欠点
があつた。 Furthermore, by rotating the rotary plate that connects the base ends of the three rods via the operating member, the distal end engaging portions of each rod are engaged and locked through the receiving holes in the frame. Since the lock is unlocked by releasing the lock, there is a drawback that the rotation operation of the operating member is heavy.

従来例(ホ)のものは、上下の錠杆はロツドを使用
しているため、ラツチの当接部とロツドの先端係
合部とのズレにより、ロツドが相手方の受孔に係
入し難くなつたり、後退して係合解除し難くなつ
たりする欠点があつた。 In the conventional example (E), the upper and lower lock levers use rods, so the rod is difficult to engage in the receiving hole of the other party due to the misalignment between the abutting part of the latch and the engaging part at the tip of the rod. It has the disadvantage that it bends or recedes, making it difficult to release the engagement.

また、１個のラツチ錠のバネにより上下のロツ
ドを突出作動させて施錠するため、ラツチのバネ
は非常に大きな力を必要とする。 Furthermore, since the spring of one latch locks the lock by protruding the upper and lower rods, the spring of the latch requires a very large force.

さらに、ハンドルの操作によつてラツチと上下
両方のロツドを後退させて解除するものであるた
め、ラツチ及びロツドの先端係合部が相手方の受
孔から完全に引つ込むまでハンドルを操作しなけ
ればならず、その摩擦抵抗等によりハンドル操作
が重いという欠点があつた。 Furthermore, since the latch and both the upper and lower rods are released by retreating by operating the handle, the handle must be operated until the engaging portions at the ends of the latch and rod are completely retracted from the mating holes. Not only that, but the frictional resistance caused the handle to be difficult to operate.

この考案は上記問題点をことごとく解消したも
のを提供しようとするものである。 This invention attempts to provide a solution that eliminates all of the above problems.

（問題点を解決するための手段） この考案は、上記問題点を解決する手段とし
て、突出保持部材により常時仮施錠状態に突出さ
れるラツチボルトを有するラツチ錠を、扉等の閉
鎖体の開放端側の側部または上部もしくは下部の
適宜個所に２個以上設け、これらラツチボルトの
突出保持部材はスライダーや連結杆等からなる連
動機構に接続するとともに、第１のラツチボルト
の操作部材を作動することにより前記連動機構を
介してラツチボルト全部を同時に解錠できるよう
に構成し、前記ラツチボルトのうち少なくとも第
１のラツチボルト以外の他のラツチボルトは、反
転可能に設けるとともに、該ラツチボルトの係合
部に係脱自在に係合して同ラツチボルトの反転を
阻止するロツキングピースを設けてなるものであ
る。(Means for Solving the Problems) As a means for solving the above problems, this invention provides a latch lock that has a latch bolt that is always projected in a temporarily locked state by a protruding holding member at the open end of a closing body such as a door. Two or more latch bolts are provided at appropriate locations on the side, top, or bottom of the side, and the protruding holding members of these latch bolts are connected to an interlocking mechanism consisting of a slider, a connecting rod, etc., and the operation member of the first latch bolt is actuated. All of the latch bolts are configured to be unlocked at the same time via the interlocking mechanism, and at least the other latch bolts other than the first latch bolt are provided to be reversible and to be freely engaged and detached from the engaging portion of the latch bolt. The latch bolt is provided with a locking piece that engages with the latch bolt to prevent the latch bolt from reversing.

（作用） 上記構成からなるこの考案によれば、(a)第１の
ラツチボルトの操作部材を作動することにより前
記連動機構を介してラツチボルト全部を同時に解
錠することができる。また、(b)単に閉扉するだけ
でキーやレバーハンドル等の施錠操作をすること
なしに、複数のラツチボルト（ラツチ錠）が同時
かつ自動的に仮施錠される。しかも、(c)高圧室や
真空室の扉の如く開扉方向に大きな室圧や風圧等
の側圧が作用している場合でも、従来例の如く、
その側圧に抗して閉扉した状態を保ちながら、レ
バーハンドルやキーを施錠操作する必要がないた
め、施錠操作が簡単にできる。(Function) According to this invention having the above configuration, (a) all the latch bolts can be unlocked simultaneously via the interlocking mechanism by operating the operating member of the first latch bolt. Furthermore, (b) simply by closing the door, a plurality of latch bolts (latch locks) are simultaneously and automatically temporarily locked without any locking operations such as keys or lever handles. Moreover, (c) even when large side pressure such as room pressure or wind pressure is acting in the opening direction of the door of a high pressure chamber or vacuum chamber, as in the conventional example,
There is no need to operate the lever handle or key to lock the door while resisting the side pressure and keep the door closed, making it easy to lock the door.

（実施例） この考案の一実施例を第１図ないし第１１図に
基づき、３点施錠の扉に適用した具体例について
以下に説明する。(Embodiment) A specific example in which an embodiment of this invention is applied to a three-point locking door will be described below with reference to FIGS. 1 to 11.

第３図において、(A)は扉等の閉鎖体（以下単に
扉という）であつて、この扉(A)の開放端側付近に
は、中央部に第１のラツチボルト３を有する扉錠
１を、上部に第１のラツチボルト以外の他のラツ
チボルト１２を有する上部ラツチ錠１０を、下部
に第１のラツチボルト以外の更に他のラツチボル
ト２２を有する下部ラツチ錠２０を、それぞれ取
り付けている。 In Fig. 3, (A) is a closing body such as a door (hereinafter simply referred to as a door), and near the open end side of this door (A) is a door lock 1 having a first latch bolt 3 in the center. , an upper latch 10 having a latch bolt 12 other than the first latch bolt at the upper part, and a lower latch lock 20 having a latch bolt 22 other than the first latch bolt at the lower part, respectively.

前記扉錠１は、錠ケース２と、錠ケース２に内
装された前記第１のラツチボルト３、ラツチ柄３
ａ、ラツチハブ４、ラツチバネ５等からなつてい
る。 The door lock 1 includes a lock case 2, the first latch bolt 3 housed in the lock case 2, and a latch handle 3.
It consists of a, latch hub 4, latch spring 5, etc.

第１のラツチボルト３は突出保持部材により常
時仮施錠状態に突出させてある。この突出保持部
材は、ラツチボルト３を常時突出方向に付勢する
ラツチバネ５と、ラツチ柄３ａと係合する係合部
４ａを有するラツチハブ４とからなつている。ラ
ツチハブ４の形状は任意であるが、この実施例で
は略コ字錠の２枚板で形成してあり、このラツチ
ハブ４の後部には二股状の切欠部４ｂを形成し、
この切欠部４ｂにピン７を係入して連動機構をな
すスライダー６と連結してある。また、ラツチハ
ブ４のハブ孔４ｃにはレバーハンドルやノブ等の
操作部材８の操作軸８ａが嵌挿してあり、この操
作部材８を所定方向に回動することにより第１の
ラツチボルト３を後退摺動して解錠するようにし
てある。 The first latch bolt 3 is always projected in a temporarily locked state by a protruding holding member. This protruding holding member consists of a latch spring 5 that always biases the latch bolt 3 in the projecting direction, and a latch hub 4 having an engaging portion 4a that engages with the latch handle 3a. Although the shape of the latch hub 4 is arbitrary, in this embodiment it is formed of two plates approximately in the shape of a U-shaped lock, and a bifurcated notch 4b is formed at the rear of the latch hub 4.
A pin 7 is inserted into this notch 4b and connected to a slider 6 forming an interlocking mechanism. Further, an operating shaft 8a of an operating member 8 such as a lever handle or a knob is fitted into the hub hole 4c of the latch hub 4, and by rotating the operating member 8 in a predetermined direction, the first latch bolt 3 is slid backward. It is designed to be unlocked by moving the door.

前記スライダー６は、第１図ないし第５図に示
すように、錠ケース２の縦方向に内外に跨がつて
貫通して上下に摺動自在としてあり、常時はバネ
６ａによつて上方向に付勢して後述する連動機構
をなす連結杆のバランスを図るようにしている。 As shown in FIGS. 1 to 5, the slider 6 passes through the lock case 2 vertically across the inside and outside, and is slidable up and down, and is normally held upward by a spring 6a. It is biased to balance the connecting rods forming an interlocking mechanism which will be described later.

なお、９はデツドボルトであり、これはこの考
案には必須のものではないが、周知の如くキーや
サムターンなどの操作により施解錠されるもので
ある。 Note that 9 is a dead bolt, which is not essential to this invention, but is locked and unlocked by operating a key, thumb turn, etc. as is well known.

前記上部ラツチ錠１０は、第１図、第２図、第
６図に示すように、そのケース１１内には、ラツ
チボルト１２と、ラツチボルト１２を常時仮施錠
状態に突出させ施錠する突出保持部材たるロツキ
ングピース１３およびバネ１４並びにラツチバネ
１５と、ラツチボルト１２の収納ケース１６とを
内装している。 As shown in FIGS. 1, 2, and 6, the upper latch 10 includes a latch bolt 12 in its case 11, and a protruding holding member that permanently protrudes and locks the latch bolt 12 in a temporarily locked state. A locking piece 13, a spring 14, a latch spring 15, and a storage case 16 for the latch bolt 12 are housed inside.

ロツキングピース１３，１３は、第１図、第２
図、第６図に示すように、水平片１３ａと垂直片
１３ｂとからなるＬ字状板を上下１対対称配置し
て夫々ケース１１の側板内に枢軸１３ｃにて枢着
してあり、その垂直片１３ｂには突部１３ｄを形
成し、どちらか一方のロツキングピース１３が、
後述の連結杆１８により前記突部１３ｄを前方水
平方向に押されて外向きの拡開方向に回動すれ
ば、他方のロツキングピース１３も対称的に拡開
方向に回動するように構成してある。 The locking pieces 13, 13 are shown in Fig. 1 and Fig. 2.
As shown in FIG. 6, a pair of upper and lower L-shaped plates consisting of a horizontal piece 13a and a vertical piece 13b are arranged symmetrically, and each is pivotally mounted in the side plate of the case 11 by a pivot 13c. A protrusion 13d is formed on the vertical piece 13b, and one of the locking pieces 13 is
When the protrusion 13d is pushed in the forward horizontal direction by a connecting rod 18, which will be described later, and rotated in the outward expansion direction, the other locking piece 13 is also symmetrically rotated in the expansion direction. It has been done.

前記ケース１１の上下両面には同軸線上に挿通
孔１１ａ，１１ａを形成し、この挿通孔１１ａ，
１１ａ間に、前述のスライダー６の上端部にジヨ
イント１７を介して連結した連動機構をなす連結
杆１８を挿通し、常時は第１図と第６図に示す如
く、連結杆１８に形成してある凹部（径小部）１
８ａに前記ロツキングピース１３の突部１３ｄが
当接するようにしてあり、このときロツキングピ
ース１３，１３の前部（水平片１３ａ）はバネ１
４，１４の弾発力によつて内向きに収縮回動し、
収納ケース１６の上下両面に穿つてあるガイド孔
１６ａ，１６ａに嵌入し、しかもその水平片１３
ａの前部がラツチボルト１２に形成してある係合
部１２ａ，１２ａに係合して、該ラツチボルト１
２の反転を阻止している。このとき、ラツチボル
ト１２はラツチバネ１５によつて突出方向に付勢
され仮施錠状態となつている。 Insertion holes 11a, 11a are formed coaxially on both the upper and lower surfaces of the case 11, and the insertion holes 11a, 11a are formed on the same axis.
A connecting rod 18 forming an interlocking mechanism connected to the upper end of the slider 6 via a joint 17 is inserted between 11a, and is normally formed into the connecting rod 18 as shown in FIGS. 1 and 6. A certain recess (small diameter part) 1
The protrusion 13d of the locking piece 13 is brought into contact with the locking piece 8a, and at this time, the front part (horizontal piece 13a) of the locking piece 13, 13
It contracts and rotates inward due to the elastic force of 4 and 14,
The horizontal piece 13 fits into the guide holes 16a, 16a bored on both the upper and lower sides of the storage case 16.
The front part of the latch bolt 12a engages with the engaging portions 12a, 12a formed on the latch bolt 12, and the latch bolt 1
This prevents the reversal of 2. At this time, the latch bolt 12 is urged in the projecting direction by the latch spring 15 and is in a temporarily locked state.

また、連結杆１８の凹部（径小部）１８ａにロ
ツキングピース１３，１３の突部１３ｄが当接し
ている前記状態から、第１のラツチボルト３の操
作部材８を作動することにより連結杆１８を第２
図示の如く下動（上動）すれば、連結杆１８の径
大部１８ｂによつてロツキングピース１３の突部
１３ｄが前方水平方向に押され、これと同時に両
ロツキングピース１３，１３の前部（水平片１３
ａ）はバネ１４，１４の弾発力に抗して枢軸１３
ｃを回動中心として外向きに拡開回動し、前記ラ
ツチボルト１２の係合部１２ａ，１２ａとの係合
を解除するようにしてあり、これによりラツチボ
ルト１２は反転が可能となり解錠できるようにな
る。このラツチボルト１２の施解錠動作を第６
図、第９図、第１１図を参照しながら説明する
と、前記の如くラツチボルト１２の反転が可能と
なつた状態においては、開扉方向の力によつて相
手方の扉枠などに取着したストライキの受孔に係
合しているラツチボルト１２の係止面１２ｂが押
されてラツチボルト１２は第１１図の鎖線の如く
反転し、該係止面１２ｂが傾斜面１２ｃと同一の
作用をなしてそのままの状態でラツチバネ１５の
復元力に抗して収納ケース１６内に後退摺動し、
ストライキとの係合が解かれて解錠即ち開扉可能
となる。開扉してラツチボルト１２がストライキ
から解放されれば同ラツチボルト１２はラツチバ
ネ１５の復元力で再び突出し、第６図及び第１１
図実線状態に復帰する。 Furthermore, from the state where the protrusion 13d of the locking pieces 13, 13 is in contact with the concave portion (small diameter portion) 18a of the connecting rod 18, by operating the operating member 8 of the first latch bolt 3, the connecting rod 18 the second
When the locking piece 13 is moved downward (upward) as shown in the figure, the protrusion 13d of the locking piece 13 is pushed forward and horizontally by the large-diameter portion 18b of the connecting rod 18, and at the same time both locking pieces 13, 13 are pushed forward and horizontally. Front part (horizontal piece 13
a) is the pivot 13 against the elastic force of the springs 14, 14.
The latch bolt 12 is rotated outwardly to expand and rotate around c as the rotation center, and the latch bolt 12 is disengaged from the engaging portions 12a, 12a, so that the latch bolt 12 can be reversed and unlocked. become. This locking/unlocking operation of the latch bolt 12 is
9 and 11, in the state where the latch bolt 12 can be reversed as described above, the strike bolt attached to the opposite door frame etc. due to the force in the door opening direction The locking surface 12b of the latchbolt 12 that is engaged with the receiving hole is pushed, and the latchbolt 12 is reversed as shown by the chain line in FIG. In this state, it slides backward into the storage case 16 against the restoring force of the latch spring 15,
The engagement with the strike is released and the door can be unlocked, that is, the door can be opened. When the door is opened and the latch bolt 12 is released from the strike, the latch bolt 12 will protrude again due to the restoring force of the latch spring 15, as shown in FIGS. 6 and 11.
The state returns to the solid line state.

なお、前記ロツキングピース１３は上下１対に
２つ使用しているが、１つでも実施できる。しか
し、実施例の如く２つ使用すれば、ラツチボルト
１２の揺動を防止できて安定して操作できるほ
か、側圧などに対する施錠強度が強くなる利点が
ある。 Although two locking pieces 13 are used for each pair of upper and lower locking pieces, it is also possible to use only one locking piece 13. However, if two bolts are used as in the embodiment, the latch bolt 12 can be prevented from swinging and can be operated stably, and there is an advantage that the locking strength against lateral pressure is increased.

前記下部ラツチ錠２０は、第１図、第２図、第
７図、第８図に示すように、ケース２１内には、
上部ラツチ錠１０と同様の、ラツチボルト２２
と、その突出保持部材をなす１対のロツキングピ
ース２３およびバネ２４並びにラツチバネ２５
と、ラツチボルト２２の収納ケース２６とをそれ
ぞれ下向きに内装しており、上記突出保持部材な
どの作動によりラツチボルト２２を床面Ｇ下方に
凹設した受孔３０に係脱自在に係入するようにし
ている。また、ロツキングピース２３の上方位置
のケース２１内には、バネ３２で反時計方向に付
勢され枢軸３３にて枢着されたカム３１と、その
カム３１を押し下げるための当て板３５が装着さ
れている。３４はバネ３２のバネ受である。さら
に、ケース２１の上板には挿通孔２１ａが形成さ
れており、この挿通孔２１ａには、前記スライダ
ー６の下端部にジヨイント２７を介して連結した
連動機構をなす連結杆２８を挿通し、常時は第１
図及び第７図に示す如く該連結杆２８の先端が当
て板３５に近接してある。 As shown in FIGS. 1, 2, 7, and 8, the lower latch 20 has a case 21 that includes:
Latch bolt 22 similar to upper latch 10
and a pair of locking pieces 23, springs 24, and latch springs 25 forming the protruding holding members.
and a storage case 26 for the latch bolt 22 are installed facing downward, so that the latch bolt 22 can be freely engaged and detached into a receiving hole 30 recessed below the floor surface G by the operation of the protruding holding member or the like. ing. Furthermore, a cam 31 which is biased counterclockwise by a spring 32 and pivotally mounted by a pivot 33, and a backing plate 35 for pushing down the cam 31 are installed in the case 21 above the locking piece 23. has been done. 34 is a spring holder for the spring 32. Further, an insertion hole 21a is formed in the upper plate of the case 21, and a connecting rod 28 forming an interlocking mechanism connected to the lower end of the slider 6 via a joint 27 is inserted into the insertion hole 21a. Always the first
As shown in the drawings and FIG. 7, the tip of the connecting rod 28 is close to the backing plate 35.

すなわち、第１図及び第７図に示す仮施錠状態
時において、連動機構たる連結杆２８は当て板３
５及びカム３１を何ら押し下げていず、カム３１
の外周縁もロツキングピース２３の水平片２３ａ
に当接（ないし近接）しているに過ぎないため、
ロツキングピース２３，２３の前部（垂直部２３
ｂ）はバネ２４，２４の弾発力によつて内向きに
収縮回動し、収納ケース２６の左右両面に穿つて
あるガイド孔２６ａ，２６ａに嵌入し、しかもそ
のロツキングピース２３の垂直部２３ｂの前部が
ラツチボルト２２に形成してある係合部２２ａ，
２２ａに係合して、該ラツチボルト２２の反転を
阻止している。 That is, in the temporarily locked state shown in FIGS. 1 and 7, the connecting rod 28, which is the interlocking mechanism,
5 and the cam 31 are not pressed down, and the cam 31
The outer peripheral edge of the horizontal piece 23a of the locking piece 23 is also
Because it is only in contact with (or in close proximity to)
The front part of the locking pieces 23, 23 (vertical part 23
b) is contracted and rotated inward by the elastic force of the springs 24, 24, and is fitted into the guide holes 26a, 26a formed on both the left and right sides of the storage case 26, and the vertical part of the locking piece 23 is The front part of 23b is an engaging part 22a formed on the latch bolt 22,
22a to prevent the latch bolt 22 from being reversed.

前記仮施錠状態から、第１のラツチボルト３の
操作部材８を作動することにより、連結杆２８を
第２図示の如く下動すれば、当て板３５を介して
カム３１が時計方向に回動されると同時に、該カ
ム３１の外周縁がロツキングピース２３の水平片
２３ａを押し下げるため、両ロツキングピース２
３，２３の前部（垂直部２３ｂ）はバネ２４，２
４の弾発力に抗して枢軸２３ｃを回動中心として
外向きに拡開回動し、前記ラツチボルト２２の係
合部２２ａ，２２ａとの係合を解除して、ラツチ
ボルト２２は反転可能となりと解錠可能となる。 From the temporarily locked state, when the connecting rod 28 is moved downward as shown in the second figure by operating the operating member 8 of the first latch bolt 3, the cam 31 is rotated clockwise via the backing plate 35. At the same time, the outer peripheral edge of the cam 31 pushes down the horizontal piece 23a of the locking piece 23, so both locking pieces 2
The front part (vertical part 23b) of 3, 23 is the spring 24, 2
4, the latch bolt 22 expands and rotates outward about the pivot 23c as a rotation center, and the latch bolt 22 is disengaged from the engaging portions 22a, 22a, so that the latch bolt 22 can be reversed. It becomes possible to unlock it.

なお、このラツチボルト２２の施解錠動作は、
上部ラツチ錠１０について説明している通りとな
る。 The locking/unlocking operation of this latch bolt 22 is as follows:
This is as described for the upper latch 10.

また、上記下部ラツチ錠２０では、扇形状のカ
ム３１の外周縁でロツキングピース２３の水平片
２３ａを押し下げるように構成していることか
ら、ロツキングピース２３やカム３１の取付位置
の誤差や寸法誤差などがあつても、水平片２３ａ
を一定以上押し上げるようなことがなく、ロツキ
ングピース２３，２３がケース２１に当たるなど
の不都合が防止できる。 Furthermore, in the lower latch lock 20, since the horizontal piece 23a of the locking piece 23 is pressed down by the outer peripheral edge of the fan-shaped cam 31, errors in the mounting position of the locking piece 23 and the cam 31 can be avoided. Even if there are dimensional errors, the horizontal piece 23a
This prevents the locking pieces 23, 23 from being pushed up beyond a certain level, and prevents inconveniences such as the locking pieces 23, 23 hitting the case 21.

（変形例等） なお、ラツチボルトの取付位置や個数は実施例
のものに限定されるものではなく、種々設計変更
できるものである。(Modifications, etc.) Note that the mounting position and number of latch bolts are not limited to those in the embodiment, and various design changes can be made.

また、複数のラツチボルトを１個の錠ケースに
間隔を置いて設けることもできる。 Also, a plurality of latch bolts can be provided at intervals in one lock case.

連動機構として、前記実施例では、スライダー
６の両端にジヨイント１７，２７を結合し、この
ジヨイント１７，２７に連結杆１８，２８を螺着
する構成を採つたが、どんな結合方式でも良く任
意であるし、また、実施例の如くスライダー６と
連結杆１８，２８との如く別体とすることなく、
１本の棒状や板状等で一体に設けることもでき
る。 As the interlocking mechanism, in the above embodiment, joints 17 and 27 are connected to both ends of the slider 6, and connecting rods 18 and 28 are screwed to the joints 17 and 27, but any connection method may be used. In addition, the slider 6 and the connecting rods 18, 28 are not separated as in the embodiment,
It can also be provided integrally in the form of a single rod or plate.

また、扉錠１に採用したようなラツチボルトや
ラツチハブや突出保持部材を備えたものを、それ
以外の上部ラツチ錠１０や下部ラツチ錠２０に設
け、これら全部のラツチボルトの突出保持部材を
連動機構に接続することもできる。その場合、上
部ラツチ錠１０や下部ラツチ錠２０のラツチハブ
にも、操作軸や操作部材を設け、どの錠からも解
錠操作ができるようにすることもできるし、又は
その上部ラツチ錠１０や下部ラツチ錠２０には上
記操作軸や操作部材を取り付けない構成もなし得
る。 In addition, latch bolts, latch hubs, and protruding holding members such as those adopted for door lock 1 are provided in other upper latch locks 10 and lower latch locks 20, and the protruding holding members of all these latch bolts are integrated into an interlocking mechanism. You can also connect. In that case, the latch hub of the upper latch 10 and the lower latch 20 may also be provided with an operating shaft or an operating member so that the lock can be unlocked from any lock, or the upper latch 10 or the lower latch may be provided with an operating shaft or an operating member. The latch lock 20 may also be constructed without the aforementioned operating shaft or operating member attached thereto.

（考案の効果） この考案は、突出保持部材により常時仮施錠状
態に突出されるラツチボルトを有するラツチ錠を
扉等の閉鎖体の適宜個所に２個以上設け、これら
ラツチボルトの突出保持部材は連動機構に接続す
るとともに、第１のラツチボルトの操作部材を作
動することにより前記連動機構を介してラツチボ
ルト全部が同時に解錠できるように構成し、前記
ラツチボルトのうち少なくとも第１のラツチボル
ト以外の他のラツチボルトは、反転可能に設ける
とともに、該ラツチボルトの係合部に係脱自在に
係合して同ラツチボルトの反転を阻止するロツキ
ングピースを設けるように構成してあるから、以
下のような効果を有する。すなわち、 (1) 錠杆はすべてラツチ錠のラツチボルトとし、
しかもラツチボルトのうち少なくとも第１のラ
ツチボルト以外の他のラツチボルトは反転可能
に設けているから、単に閉扉するだけでキーや
レバーハンドル等の施錠操作をすることなし
に、複数のラツチボルト（ラツチ錠）が同時か
つ自動的に仮施錠される。(Effect of the invention) This invention provides two or more latch locks having latch bolts that are always projected in a temporarily locked state by a protruding holding member at appropriate locations on a closing body such as a door, and the protruding holding members of these latch bolts have an interlocking mechanism. and is configured such that all the latch bolts can be unlocked simultaneously via the interlocking mechanism by operating the operation member of the first latch bolt, and at least the other latch bolts other than the first latch bolt are Since the latch bolt is provided so as to be reversible and is provided with a locking piece that removably engages with the engaging portion of the latch bolt to prevent the latch bolt from reversing, the following effects are achieved. In other words, (1) All locks shall be latch bolts of latch locks;
Moreover, since at least all of the latch bolts other than the first latch bolt are reversible, multiple latch bolts (latch locks) can be opened simply by closing the door without using a key or lever handle. Temporarily locked simultaneously and automatically.

(2) しかも、上記構成からして、小さな力で扉を
円滑に閉めることができる。換言すれば、高圧
室や真空室の扉の如く開扉方向に大きな室圧や
風圧等の側圧が作用している場合でも、従来例
の如く、その側圧に抗して閉扉した状態を保ち
ながら、レバーハンドルやキーを施錠操作する
必要がないため、施錠操作が簡単にできる。(2) Moreover, considering the above structure, the door can be closed smoothly with a small force. In other words, even when large side pressure such as room pressure or wind pressure is acting in the opening direction of the door of a high pressure room or vacuum chamber, the door can be kept closed against the side pressure as in the conventional example. , there is no need to use the lever handle or key to perform the locking operation, making the locking operation easy.

(3) さらに、解錠操作は、第１のラツチボルトを
後退させる力と、上下の反転ラツチボルトとロ
ツキングピースとの係合（係合量は一定）を解
除させる力のみでよいので、従来例に比べて小
さな力で円滑に解錠できる。これに対し、従来
例(ロ)〜(ホ)では、ラツチ及びロツドの先端係合部
が相手方の受孔から完全に引つ込むまで操作部
材を操作しなければならず、その摩擦抵抗等に
より操作部材に対する回動操舵が重いという難
点がある。(3) Furthermore, the unlocking operation requires only the force to retract the first latch bolt and the force to disengage the locking piece from the vertically inverted latch bolt (the amount of engagement is constant). It can be unlocked smoothly with less force compared to . On the other hand, in conventional examples (b) to (e), the operating member must be operated until the end engaging portion of the latch and rod is completely retracted from the receiving hole of the other party, and due to the frictional resistance etc. There is a drawback that the rotational steering with respect to the operating member is heavy.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第１１図はいずれもこの考案の一
実施例を示す。第１図は仮施錠状態を示す一部縦
断面図、第２図は解錠状態を示す一部縦断面図、
第３図は本考案扉錠の取付状態を示す全体の概略
正面図、第４図は扉錠部分の一部切り欠き正面
図、第５図は第４図の斜視図、第６図は上部ラツ
チ錠の縦断面図、第７図は下部ラツチ錠の縦断面
図、第８図は下部ラツチ錠の概略側面図、第９図
は第４図の水平面図、第１０図は反転ラツチボル
トの斜視図、第１１図は上部ラツチ錠及び下部ラ
ツチ錠における反転式ラツチボルトの作動説明図
である。 １……扉錠、３……第１のラツチボルト、４…
…ラツチハブ（突出保持部材）、５……ラツチバ
ネ（突出保持部材）、６……スライダー（連動機
構）、８……操作部材、１０……上部ラツチ錠、
２０……下部ラツチ錠、１２，２２……ラツチボ
ルト、１３，２３……ロツキングピース（突出保
持部材）、１４，２４……バネ（突出保持部材）、
１５，２５……ラツチバネ（突出保持部材）、１
６，２６……収納ケース、１８，２８……連結杆
（連動機構）、３１……カム、３５……当て板。 1 to 11 each show an embodiment of this invention. Fig. 1 is a partial longitudinal sectional view showing the temporarily locked state, Fig. 2 is a partial longitudinal sectional view showing the unlocked state,
Figure 3 is a schematic front view of the entire device showing the installed state of the door lock of the present invention, Figure 4 is a partially cutaway front view of the door lock, Figure 5 is a perspective view of Figure 4, and Figure 6 is the upper part. Fig. 7 is a longitudinal sectional view of the latch lock, Fig. 7 is a longitudinal sectional view of the lower latch lock, Fig. 8 is a schematic side view of the lower latch lock, Fig. 9 is a horizontal view of Fig. 4, and Fig. 10 is a perspective view of the inverted latch bolt. 11 are explanatory diagrams of the operation of the reversible latch bolt in the upper latch lock and the lower latch lock. 1...door lock, 3...first latch bolt, 4...
...Latch hub (protruding holding member), 5... Latch spring (protruding holding member), 6... Slider (interlocking mechanism), 8... Operation member, 10... Upper latch lock,
20... Lower latch lock, 12, 22... Latch bolt, 13, 23... Locking piece (protruding holding member), 14, 24... Spring (protruding holding member),
15, 25... Latch spring (protruding holding member), 1
6, 26... Storage case, 18, 28... Connecting rod (interlocking mechanism), 31... Cam, 35... Backing plate.

Claims (1)

【実用新案登録請求の範囲】 (1) 突出保持部材により常時仮施錠状態に突出さ
れるラツチボルトを有するラツチ錠を扉等の閉
鎖体の適宜個所に２個以上設け、これらラツチ
ボルトの突出保持部材は連動機構に接続すると
ともに、第１のラツチボルトの操作部材を作動
することにより前記連動機構を介してラツチボ
ルト全部が同時に解錠できるように構成し、前
記ラツチボルトのうち少なくとも第１のラツチ
ボルト以外の他のラツチボルトは、反転可能に
設けるとともに、該ラツチボルトの係合部に係
脱自在に係合して同ラツチボルトの反転を阻止
するロツキングピースを設けてあることを特徴
とする扉錠。 (2) 連動機構は、第１のラツチボルトのラツチハ
ブをピンで軸支したスライダーと、このスライ
ダーの上下両端部にジヨイントを介して連結
し、かつ第１のラツチボルト以外の他のラツチ
ボルトを出没可能とした連結杆とで構成してあ
る実用新案登録請求の範囲第１項記載の扉錠。 (3) 連結杆には一部に凹部を形成し、この凹部に
ロツキングピースの後端部を当接して、該ロツ
キングピースの前部をバネの弾発力により内向
きに収縮しラツチボルトの係合部に係脱自在に
係合する一方、該連結杆を上下動することによ
りその径大部で前記ロツキングピースの前部を
バネの弾発力に抗して外向きに拡開してラツチ
ボルトとの係合を解除するように構成してある
実用新案登録請求の範囲第２項記載の扉錠。 (4) 連結杆の先端側には当て板を介してカムを枢
着するとともに、このカムの外周縁の回動によ
りロツキングピースをラツチボルトの係合部に
係脱自在に係合して該ラツチボルトの反転を阻
止するように構成してある実用新案登録請求の
範囲第２項または第３項記載の扉錠。[Scope of Claim for Utility Model Registration] (1) Two or more latch locks each having a latch bolt that is permanently projected in a temporarily locked state by a protruding retaining member are provided at appropriate locations on a closing body such as a door, and the protruding retaining member of these latch bolts is In addition to being connected to an interlocking mechanism, all the latchbolts can be unlocked at the same time via the interlocking mechanism by operating an operating member of the first latchbolt, and at least the other latchbolts other than the first latchbolt are connected to the interlocking mechanism. A door lock characterized in that the latch bolt is provided so as to be reversible, and a locking piece is provided which detachably engages with an engaging portion of the latch bolt to prevent the latch bolt from reversing. (2) The interlocking mechanism includes a slider in which the latch hub of the first latch bolt is pivotally supported by a pin, and a slider that is connected to both upper and lower ends of this slider via a joint, and that other latch bolts other than the first latch bolt can be moved in and out. A door lock according to claim 1 of the utility model registration claim, which is constituted by a connecting rod. (3) A recess is formed in a part of the connecting rod, and the rear end of the locking piece is brought into contact with this recess, and the front part of the locking piece is contracted inward by the elastic force of the spring, thereby tightening the latch bolt. While detachably engaging with the engaging portion of the locking piece, by moving the connecting rod up and down, the front portion of the locking piece is expanded outward with its large diameter portion against the elastic force of the spring. The door lock according to claim 2 of the utility model registration, wherein the door lock is configured to release the engagement with the latch bolt. (4) A cam is pivotally attached to the tip side of the connecting rod via a cover plate, and the locking piece is removably engaged with the engaging portion of the latch bolt by rotation of the outer periphery of the cam. The door lock according to claim 2 or 3, which is configured to prevent the latch bolt from reversing.