JPH101962A - Locking device - Google Patents
Locking deviceInfo
- Publication number
- JPH101962A JPH101962A JP8153529A JP15352996A JPH101962A JP H101962 A JPH101962 A JP H101962A JP 8153529 A JP8153529 A JP 8153529A JP 15352996 A JP15352996 A JP 15352996A JP H101962 A JPH101962 A JP H101962A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- handle
- groove
- main body
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 18
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000003340 mental effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】この発明は、マンホール等の
蓋に使用するのに好適な施錠装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device suitable for use in a lid of a manhole or the like.
【０００２】[0002]
【従来の技術】従来、マンホール等の蓋に対する施錠装
置は、種々知られている。かかる装置の一つに、蓋に取
り付けられた施錠部材と、該部材の鍵穴（ハンドル挿入
孔）に挿入されて該部材に係脱するハンドルとで構成さ
れ、係合したハンドルを左右方向に回動して施錠部材の
爪金具を施錠位置と解錠位置との間で往復させ、解錠位
置にあるときのハンドルを鍵穴から抜脱しようとする
と、ハンドルの一部が蓋の内面に当接するようにしたも
のがある。このハンドルを握持して蓋を持ち上げると、
重くて、しかも、つかみしろのない蓋でも比較的容易に
開けることができる。施錠位置にある爪金具には、マン
ホールの蓋に加わる振動で解錠位置にまで回動してしま
うことがないように、ストッパーを作用させることがあ
る。2. Description of the Related Art Conventionally, various locking devices for lids such as manholes have been known. One of such devices is composed of a locking member attached to a lid and a handle that is inserted into a keyhole (handle insertion hole) of the member and engages with and disengages from the member. When the handle is moved back and forth to reciprocate between the locking position and the unlocking position and the handle is attempted to be removed from the keyhole when in the unlocked position, a part of the handle comes into contact with the inner surface of the lid. There is something like this. When you hold this handle and lift the lid,
Even a lid that is heavy and has no grip can be relatively easily opened. A stopper may be applied to the pawl metal fitting in the locking position so that the pawl fitting in the locking position does not rotate to the unlocking position due to the vibration applied to the manhole cover.
【０００３】[0003]
【発明が解決しようとする課題】蓋の開閉操作をする者
は、このようにして蓋を持ち上げているときに蓋または
ハンドルが思わぬ方向に不意に動き、ハンドルが鍵穴か
ら抜けてしまうということがないように十分注意しなけ
らばならず、それだけ操作をする者に精神的な負担がか
かる。また、施錠装置は、爪金具のストッパーやその他
の機構を極力簡単にして部材点数を少なくし、製作コス
トの上昇を抑え、かつ、保守を容易にすることが好まし
い。A person who operates the lid to open and close the lid or handle suddenly moves in an unexpected direction when the lid is lifted in this way, and the handle comes out of the keyhole. Care must be taken to ensure that there is no such error, and this places a mental burden on those who operate. In the locking device, it is preferable that the stopper of the claw fitting and other mechanisms be made as simple as possible to reduce the number of members, suppress a rise in manufacturing cost, and facilitate maintenance.
【０００４】そこで、この発明は、そのような精神的な
負担を軽減できるように、装置が解錠状態にあるとき
に、ハンドルが鍵穴から容易に抜けることがないように
すること等を課題にしている。Therefore, the present invention has an object to prevent the handle from being easily removed from the keyhole when the device is in the unlocked state so as to reduce such a mental burden. ing.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
に、この発明が前提とするのは、マンホール等の蓋にそ
の内外面間を貫通して固定される本体と、該本体に取り
付けられる爪金具を前記蓋に対する固定枠に係脱させて
前記蓋を施錠状態と解錠状態とにすることが可能なハン
ドルとからなり、前記本体が、前記内外面方向に延びる
円筒状部と該円筒状部よりも大径であって該円筒状部上
端を覆い、前記ハンドルの挿入孔を有する頂部と、前記
円筒状部内側にその周り方向に回転可能に収納され、上
端部に前記ハンドルが係脱可能であり、下端部に前記爪
金具が取り付けられる回転子とを有する施錠装置であ
る。In order to solve the above-mentioned problems, the present invention is premised on a main body which is fixed to a lid such as a manhole or the like by penetrating between inner and outer surfaces thereof, and which is attached to the main body. The handle includes a handle capable of engaging and disengaging the claw fitting with the fixing frame with respect to the lid to bring the lid into a locked state and an unlocked state, and the main body has a cylindrical portion extending in the inner and outer surface directions and the cylinder. A top portion having a diameter larger than that of the cylindrical portion and covering the upper end of the cylindrical portion, and having a top portion having an insertion hole for the handle, housed inside the cylindrical portion so as to be rotatable therearound, and having the upper end portion engaged with the handle. A locking device that is removable and has a rotor to which the claw fitting is attached at the lower end.
【０００６】かかる前提において、この発明が特徴とす
るところは、次のとおりである。前記ハンドルが握持部
と、上下に延びる軸部と、該軸部の下端部において径方
向外方へ左右対称に延びる左右一対の翼部とを有する。
前記本体は、前記頂部のハンドル挿入孔が前記一対の翼
部を挿抜可能に左右に長く形成されるとともに、前記挿
入孔の左右方向の中心において該孔と直交する線上の前
記頂部内面に該孔を挟んで互いに対向し、前記翼部の幅
と同じかそれよりも狭い一対の垂下部が形成される。前
記回転子は、前記円筒状部上方に位置する第１回転子
と、下方に位置する第２回転子とによって構成され、こ
れら両回転子が共に同じ方向へ回転可能に係合するとと
もに、前記第１回転子が両回転子間に介在する付勢ばね
の作用下に前記円筒状部内を上昇・下降可能、かつ、上
昇時に前記頂部内面に当接可能に形成される。前記第１
回転子は、その上端部に、前記ハンドル挿入孔の下に位
置したときに挿入される前記ハンドルを受容可能な径方
向に延びる溝部と、該溝部がハンドル挿入孔の下に位置
したときに前記一対の垂下部を受容可能な凹部とを有
し、該凹部の側壁に受容した前記垂下部側面が当接する
ことにより、前記第１，２回転子の回転を阻止可能に形
成される。前記溝は、前記翼部の丈よりも所要寸法だけ
深く形成され、前記溝に翼部が挿入された前記ハンドル
で前記第１回転子を下方へ押圧すると、該第１回転子が
前記付勢ばねに抗して下降して前記凹部が前記垂下部か
ら離脱して前記第１，２回転子が時計方向および反時計
方向のいずれかへ回転して前記蓋を解錠状態にすること
が可能であり、前記解錠状態において前記第１回転子へ
の押圧を解除すると、前記第１回転子が前記ばねの作用
下に上昇して前記垂下部の少なくとも下端部位が前記溝
に受容される。On this premise, the features of the present invention are as follows. The handle has a grip portion, a shaft portion extending vertically, and a pair of left and right wings extending symmetrically outward in the radial direction at the lower end portion of the shaft portion.
In the main body, the handle insertion hole at the top is formed to be long in the left and right so that the pair of wings can be inserted and removed, and the hole is formed on the inner surface of the top on a line orthogonal to the hole at the center of the insertion hole in the left-right direction. , And a pair of hanging portions that are equal to or smaller than the width of the wing portion are formed. The rotor is composed of a first rotor located above the cylindrical portion and a second rotor located below, and both rotors are rotatably engaged in the same direction. The first rotor is formed so as to be able to move up and down in the cylindrical portion under the action of an urging spring interposed between both rotors, and to come into contact with the inner surface of the top portion when rising. The first
The rotor has, at its upper end, a groove extending in the radial direction capable of receiving the handle inserted under the handle insertion hole, and the groove when the groove is located under the handle insertion hole. A pair of hanging parts can be received, and the side surfaces of the hanging parts contact the side walls of the recesses, so that the rotation of the first and second rotors can be prevented. The groove is formed deeper by a required dimension than the length of the wing, and when the first rotor is pressed downward by the handle having the wing inserted into the groove, the first rotor is biased. It is possible to move down against the spring, the recess is separated from the hanging part, and the first and second rotors are rotated in either the clockwise direction or the counterclockwise direction to unlock the lid. When the pressing on the first rotor is released in the unlocked state, the first rotor rises under the action of the spring, and at least a lower end portion of the hanging portion is received in the groove.
【０００７】[0007]
【発明の実施の形態】添付の図面を参照し、この発明に
かかる施錠装置の詳細を説明すると、以下のとおりであ
る。BEST MODE FOR CARRYING OUT THE INVENTION The details of a locking device according to the present invention will be described below with reference to the accompanying drawings.
【０００８】図１の部分破断斜視図で示された施錠装置
１は、マンホールの蓋２に取り付けられた本体３と、本
体３に係脱するハンドル４とで構成されている。蓋２
は、固定枠１０に嵌合し、本体３の下端部に取り付けら
れた爪金具７が固定枠１０の下面に係合して施錠状態に
ある。ハンドル４が矢印Ｘで示す時計方向へ回動する
と、爪金具７が旋回し、それぞれが仮想線の位置へと移
り、装置１が解錠状態となる。A locking device 1 shown in a partially cutaway perspective view of FIG. 1 is composed of a main body 3 attached to a lid 2 of a manhole and a handle 4 which is engaged with and disengaged from the main body 3. Lid 2
Is in a locked state in which the claw fitting 7 attached to the lower end of the main body 3 is engaged with the lower surface of the fixed frame 10. When the handle 4 is rotated in the clockwise direction indicated by the arrow X, the claw fittings 7 are swung to move to the positions indicated by the phantom lines, and the device 1 is unlocked.
【０００９】ハンドル４は、それが施錠状態（図の実線
の状態）にあるときに、本体３のハンドル挿入孔（鍵
穴）５から抜脱可能であり、解錠状態（仮想線の状態）
では、抜脱不能になる。解錠状態にある蓋２は、ハンド
ル４の頂部握持部４６を持ち上げると、簡単に開けるこ
とができる。When the handle 4 is in the locked state (the state shown by the solid line), it can be removed from the handle insertion hole (key hole) 5 of the main body 3 and unlocked (the state shown by the phantom line).
Then it becomes impossible to pull out. The lid 2 in the unlocked state can be easily opened by lifting the top grip portion 46 of the handle 4.
【００１０】図２は、図１に実線で示す施錠装置１のＩ
Ｉ−ＩＩ線矢視図であるが、ハンドル４は抜脱した状態
にある。FIG. 2 shows the locking device 1 shown by a solid line in FIG.
FIG. 2 is a view taken along line I-II, in which the handle 4 is in a detached state.
【００１１】ハンドル４は、水平方向に延びる握持部４
６（図１参照）と、垂直方向に延びる軸部４７と、軸部
４７の下端部において径方向外方へ左右対称に延びる一
対の翼部４８とからなる。The handle 4 has a grip portion 4 extending in the horizontal direction.
6 (see FIG. 1), a shaft portion 47 extending in the vertical direction, and a pair of blade portions 48 extending symmetrically outward in the radial direction at the lower end portion of the shaft portion 47.
【００１２】本体３は、蓋２の厚み方向を貫通する円筒
状部６と、該部６よりも大径で該部６の上端を覆い、蓋
２の上面にワッシャー７とパッキング８とを介して当接
する頂部９とを有し、この頂部９と円筒状部６の外周壁
ねじ部１１に螺着し、Ｏ−リング１３を介して蓋２の下
面に当接するナット１２とで蓋２を挟圧している。円筒
状部６の内周壁１９には、筒の周り方向に回転可能な第
１回転子１６と第２回転子１７とが摺接している。第
１，２回転子１６，１７は、円筒状部６の上下それぞれ
に位置し、第２回転子１７がその外周壁１８と円筒状部
内周壁１９とに係合する金属リング２１によって上下方
向への動きが止められている。一方、第１回転子１６
は、それと第２回転子１７との間に介在するばね２２に
よって上方へ付勢され、上端２３が頂部９の下面２４に
当接した状態にあるが、ばね２２の作用に抗して下降可
能である。図示の状態の第１回転子１６では、その上端
部に形成された第２溝３８内に頂部９の下面２４の垂下
部２７が納まり、第１回転子１６が時計方向または反時
計方向へ回転しようとすると、第１溝２６の側壁が垂下
部２７に周り方向から当接し、その回転が阻止される。
第２回転子１７は、円筒状部６から下方への延出部２９
を有し、該部２９には、回転角度規制プレーと３１と、
爪金具７と、スプリングワッシャー３２とがナット３３
で固定されている。第２回転子１７の外周壁１８にはＯ
−リング３４が取り付けられている。The main body 3 has a cylindrical portion 6 penetrating in the thickness direction of the lid 2, and has a diameter larger than that of the portion 6 and covers the upper end of the portion 6. A washer 7 and a packing 8 are provided on the upper surface of the lid 2. And a nut 12 which is screwed onto the outer wall screw portion 11 of the cylindrical portion 6 and abuts on the lower surface of the lid 2 via an O-ring 13. It is pinching. The first rotor 16 and the second rotor 17, which are rotatable in the circumferential direction of the cylinder, are in sliding contact with the inner peripheral wall 19 of the cylindrical portion 6. The first and second rotors 16 and 17 are respectively located above and below the cylindrical portion 6, and the second rotor 17 is vertically moved by a metal ring 21 that engages with an outer peripheral wall 18 and an inner peripheral wall 19 of the cylindrical portion. Has been stopped. On the other hand, the first rotor 16
Is urged upward by a spring 22 interposed between it and the second rotor 17, and the upper end 23 is in contact with the lower surface 24 of the top 9, but can be lowered against the action of the spring 22. It is. In the first rotor 16 in the illustrated state, the hanging portion 27 of the lower surface 24 of the top 9 is housed in the second groove 38 formed in the upper end portion thereof, and the first rotor 16 rotates clockwise or counterclockwise. If this is attempted, the side wall of the first groove 26 comes into contact with the hanging portion 27 from the circumferential direction, and its rotation is blocked.
The second rotor 17 has a downwardly extending portion 29 extending from the cylindrical portion 6.
And has a rotation angle regulation play 31 and
The claw fitting 7 and the spring washer 32 are combined with the nut 33.
It is fixed at. The outer peripheral wall 18 of the second rotor 17 has O
A ring 34 is mounted.
【００１３】図３は、本体３の要部分解斜視図である。
頂部９は、左右に長いハンドル翼部４８の挿入孔５を有
する。孔５の長手方向中央部は、ハンドル軸部４７を受
容できるように円弧３６を画き、またその中央部には、
頂部９の下面２４に垂下部２７が形成されている。FIG. 3 is an exploded perspective view of a main part of the main body 3.
The top portion 9 has an insertion hole 5 for the handle wing portion 48 that is long in the left and right. A central portion in the longitudinal direction of the hole 5 defines an arc 36 so as to receive the handle shaft portion 47, and a central portion thereof includes:
A hanging portion 27 is formed on the lower surface 24 of the top 9.
【００１４】第１回転子１６は、上端部に径方向へ延
び、かつ、互いに直交する第１溝２６と第２溝３８とを
有する。第２溝３８は垂下部２７を受容し得るように、
溝の幅と深さとが垂下部２７の幅と垂下する長さよりも
大きく形成されている（図２参照）。第１溝２６は、ハ
ンドル４の一対の翼部４８とそれらの間に介在する軸部
４７の下端部分とを受容し得るように、溝の幅と深さと
長さとが翼部４８の厚みと高さと左右方向の長さよりも
大きく形成されている。かかる第１溝２６は、垂下部２
７の少なくとも下端部位を受容可能に形成されている。
また、第１回転子１６は、下端部に径方向で互いに対向
する一対の脚部３９を有し、これら脚部３９どうしの間
にばね２２の上端部分が納まる（図２参照）。The first rotor 16 has a first groove 26 and a second groove 38 which extend in the radial direction and are orthogonal to each other at the upper end portion. The second groove 38 receives the hanging part 27,
The width and depth of the groove are formed larger than the width and the length of the hanging part 27 (see FIG. 2). The width, depth, and length of the first groove 26 are set to be equal to the thickness of the wing portion 48 so as to receive the pair of wing portions 48 of the handle 4 and the lower end portion of the shaft portion 47 interposed therebetween. It is formed to be larger than the height and the length in the left-right direction. The first groove 26 is the hanging portion 2
7 is formed to be able to receive at least a lower end portion thereof.
The first rotor 16 has a pair of legs 39 at the lower end that oppose each other in the radial direction, and the upper end of the spring 22 fits between the legs 39 (see FIG. 2).
【００１５】第２回転子１７は、上端部の中央にばね２
２に対する収納部４１と、収納部４１の周壁を一部切り
欠いて形成された溝部４２とを有する。溝部４２には、
第１回転子１６の一対の脚部３９が上方から進入し、第
１回転子１６がばね２２の作用下に溝部４２内で上下動
可能である（図２参照）。第２回転子１７の高さ方向中
間部には、周り方向に延びる溝部４３があり、ここには
Ｏ−リング３４が嵌合する。第２回転子１７の下端部
は、円筒状部６から下方へ延びる細径の延出部２９であ
り、ここには螺条が施されている。The second rotor 17 has a spring 2 at the center of its upper end.
2 has a storage portion 41 and a groove portion 42 formed by partially cutting out a peripheral wall of the storage portion 41. In the groove 42,
The pair of legs 39 of the first rotor 16 enters from above, and the first rotor 16 can move up and down in the groove 42 under the action of the spring 22 (see FIG. 2). A groove 43 extending in the circumferential direction is provided in the middle of the second rotor 17 in the height direction, and the O-ring 34 is fitted therein. The lower end of the second rotor 17 is a small-diameter extending portion 29 that extends downward from the cylindrical portion 6 and is provided with a thread.
【００１６】図３でこのように分解された本体３が図２
のように組み立てられると、第１回転子１６の脚部３９
が第２回転子１７の溝部４２内に納まり、脚部３９と溝
部４２の側壁どうし３９Ａ，４２Ａが周り方向から当接
可能な状態になる。その当接によって第１回転子１６が
円筒状部６内を周り方向に回転すると、第２回転子１７
も同方向に回転するように形成されているが、図２では
頂部９の垂下部２７が第１回転子１６の第２溝３８内に
位置してそれらの回転を阻止している。それゆえ、図１
において施錠状態にある爪金具７は、徒らに旋回して解
錠状態になるということがない。The body 3 thus disassembled in FIG. 3 is shown in FIG.
When assembled as shown in FIG.
Are accommodated in the groove 42 of the second rotor 17, and the leg 39 and the side walls 39A, 42A of the groove 42 can be brought into contact with each other from the surrounding direction. When the first rotor 16 rotates in the circumferential direction in the cylindrical portion 6 due to the contact, the second rotor 17
2 is also formed so as to rotate in the same direction, but in FIG. 2, the hanging portion 27 of the top portion 9 is located in the second groove 38 of the first rotor 16 to prevent their rotation. Therefore, FIG.
In the above, the pawl metal fitting 7 in the locked state does not turn into an unlocked state by unnecessarily turning.
【００１７】図４の断面図は、図２においてハンドル４
を挿入したときの状態を示す。ハンドル４の翼部４８を
挿入孔５から第１溝２６へ挿入し、翼部４８の下端４８
Ａで第１溝２６の底面２６Ａをばね２２に抗して押圧す
ると、第１回転子１６の頂面２３が垂下部２７の下端２
７Ａよりも下方に位置するところまで第１回転子１６を
下降させることができる。加えて、翼部４８の丈Ｈは、
第１溝２６の深さよりも小さいから、ハンドル４を時計
方向Ｘへ回すと、第１回転子１６が垂下部２７に衝接す
ることなく回転する。第２回転子１７は、第１回転子１
６と共に時計方向へ９０°回転し、回転角度規制板３１
の部位３１Ａが円筒状部６の下端部６Ａに周り方向から
当接することにより停止する。かかる第２回転子１７の
回転とともに爪金具７が時計方向Ｘへ旋回し、装置１が
解錠状態となる。FIG. 4 is a sectional view of the steering wheel 4 shown in FIG.
Shows the state at the time when is inserted. The wing 48 of the handle 4 is inserted into the first groove 26 from the insertion hole 5, and the lower end 48 of the wing 48 is
When the bottom surface 26A of the first groove 26 is pressed against the spring 22 at A, the top surface 23 of the first rotor 16
The first rotor 16 can be lowered to a position below 7A. In addition, the length H of the wing 48 is
Since the depth is smaller than the depth of the first groove 26, when the handle 4 is rotated in the clockwise direction X, the first rotor 16 rotates without contacting the hanging portion 27. The second rotor 17 is a first rotor 1
6 is rotated clockwise by 90 °, and the rotation angle regulating plate 31 is rotated.
The portion 31A comes into contact with the lower end portion 6A of the cylindrical portion 6 from the circumferential direction to stop. With the rotation of the second rotor 17, the claw fitting 7 pivots in the clockwise direction X, and the device 1 is unlocked.
【００１８】図５は、挿入したハンドル４を９０°回転
させて爪金具７が解錠状態にあるときの図２と同様な断
面図である。ただし、ハンドル４は、軸部４７が仮想線
で、翼部４８が実線で示してある。操作する者の手が離
れたハンドル４は、第１溝２６に納まったままの状態
で、ばね２２の作用により、第１回転子１６と共に上昇
する。第１溝２６の位置は垂下部２７の下にあり、第１
回転子１６が上昇すると垂下部２７が第１溝２６の中に
入り、垂下部２７の下端面２７Ａと翼部４８の上端面４
８Ｂとが衝接して第１回転子１６の上昇が止まる。この
状態では、第１溝２６の側壁２６Ｂの上端部分５１が翼
部４８の上端面４８よりも上に延びており、第１回転子
１６が反時計方向へ回転しようとすると、上端部分５１
が垂下部２７に周り方向から衝接してその回転を阻止す
ることができる。それゆえ、図示の状態のハンドル４は
回転することがなく、このハンドル４を握持して蓋２を
持ち上げるときに、ハンドル４が不意に蓋２から外れる
という恐れがない。FIG. 5 is a sectional view similar to FIG. 2 when the inserted handle 4 is rotated by 90 ° and the claw fitting 7 is in the unlocked state. However, in the handle 4, the shaft portion 47 is indicated by an imaginary line, and the wing portion 48 is indicated by a solid line. The handle 4 separated from the operator's hand rises together with the first rotor 16 by the action of the spring 22 while being kept in the first groove 26. The position of the first groove 26 is below the hanging part 27,
When the rotor 16 rises, the hanging portion 27 enters the first groove 26, and the lower end surface 27A of the hanging portion 27 and the upper end surface 4 of the wing portion 48
8B abuts on the first rotor 16 and stops rising. In this state, the upper end portion 51 of the side wall 26B of the first groove 26 extends above the upper end surface 48 of the wing portion 48, and when the first rotor 16 attempts to rotate in the counterclockwise direction, the upper end portion 51
It is possible to impinge on the hanging part 27 from the circumferential direction and prevent its rotation. Therefore, the handle 4 in the illustrated state does not rotate, and there is no fear that the handle 4 is accidentally detached from the lid 2 when the handle 4 is gripped and the lid 2 is lifted.
【００１９】図５の装置１を施錠状態にするには、まず
ハンドル４を押圧して第１回転子１６を垂下部２７に衝
接することがないところまで下降させる。次いで、ハン
ドル４を押圧したままの状態で反時計方向へ９０°回転
させると、回転角度規制板３１が円筒状部６の所定部位
（図示せず）に周り方向から当接して図４の状態に戻
り、爪金具７が施錠状態となり、ハンドル４が抜脱可能
になる。In order to lock the device 1 shown in FIG. 5, the handle 4 is first pressed to lower the first rotor 16 to a position where it does not abut against the hanging portion 27. Next, when the handle 4 is rotated counterclockwise by 90 ° while being pressed, the rotation angle regulating plate 31 abuts a predetermined portion (not shown) of the cylindrical portion 6 from the surrounding direction, and the state shown in FIG. Then, the claw fitting 7 is locked and the handle 4 can be pulled out.
【００２０】この発明の図示例において、頂部９の上面
には、ビス２７を中心に旋回する蓋２６が取り付けられ
ており、ハンドル挿入孔５への雨水、塵埃の侵入を防ぐ
ことができる。第１回転子１６の第２溝３８は、図２の
状態において垂下部２７を受容可能な凹部に代えること
ができる。装置１は、ハンドル４が反時計方向へ回転し
たときに解錠状態となるようにしてもよい。In the illustrated example of the present invention, a lid 26 that pivots around a screw 27 is attached to the upper surface of the top portion 9 to prevent rainwater and dust from entering the handle insertion hole 5. The second groove 38 of the first rotor 16 can be replaced with a recess that can receive the hanging portion 27 in the state of FIG. The device 1 may be unlocked when the handle 4 rotates counterclockwise.
【００２１】[0021]
【発明の効果】この発明に係る施錠装置の施錠状態にお
いて、爪金具は、ハンドルで操作しなければ旋回するこ
とがなく、この装置に加わる振動などによって徒らに動
き解錠状態になることがない。また、この装置が解錠状
態にあるときのハンドルは、それを押圧して回転させな
い限り装置から抜脱することができないから、蓋を開け
るための安全性の高い取手として利用することができ
る。In the locked state of the locking device according to the present invention, the claw fitting does not pivot unless it is operated by the handle, and it may be moved to an unlocked state due to vibrations applied to the device. Absent. Further, the handle when the device is in the unlocked state cannot be removed from the device unless the handle is pressed and rotated, so that the handle can be used as a highly safe handle for opening the lid.
【図１】使用状態にある施錠装置の斜視図。FIG. 1 is a perspective view of a locking device in use.
【図２】図１のＩＩ−ＩＩ線断面図。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】施錠装置の要部分解斜視図。FIG. 3 is an exploded perspective view of a main part of the locking device.
【図４】挿入したハンドルを押圧した状態の図２と同様
な図面。FIG. 4 is a view similar to FIG. 2 with the inserted handle pressed.
【図５】解錠状態にある施錠装置の図２と同様な断面図FIG. 5 is a sectional view similar to FIG. 2 of the locking device in an unlocked state;
１ 施錠装置 ２ 蓋 ３ 本体 ４ ハンドル ５ 挿入孔 ６ 円筒状部 ７ 爪金具 ９ 頂部 １６ 第１回転子 １７ 第２回転子 ２２ ばね ２６ 溝部（第１溝） ２７ 垂下部 ３８ 凹部（第２溝） ４６ 握持部 ４７ 軸部 ４８ 翼部 Ｈ 丈 DESCRIPTION OF SYMBOLS 1 Locking device 2 Lid 3 Main body 4 Handle 5 Insertion hole 6 Cylindrical part 7 Claw metal fitting 9 Top 16 First rotor 17 Second rotor 22 Spring 26 Groove (first groove) 27 Hanging part 38 Recess (second groove) 46 Gripping part 47 Shaft part 48 Wing part H length
Claims (2)
して固定される本体と、該本体に取り付けられる爪金具
を前記蓋に対する固定枠に係脱させて前記蓋を施錠状態
と解錠状態とにすることが可能なハンドルとからなり、
前記本体が、前記内外面方向に延びる円筒状部と該円筒
状部よりも大径であって該円筒状部上端を覆い、前記ハ
ンドルの挿入孔を有する頂部と、前記円筒状部内側にそ
の周り方向に回転可能に収納され、上端部に前記ハンド
ルが係脱可能であり、下端部に前記爪金具が取り付けら
れる回転子とを有する施錠装置において、 前記ハンドルが握持部と、上下に延びる軸部と、該軸部
の下端部において径方向外方へ左右対称に延びる一対の
翼部とを有し、 前記本体は、前記頂部のハンドル挿入孔が前記一対の翼
部を挿抜可能に左右に長く形成されるとともに、前記挿
入孔の左右方向の中心において該孔と直交する線上の前
記頂部内面に該孔を挟んで互いに対向し、前記翼部の幅
と同じかそれよりも狭い一対の垂下部が形成され、 前記回転子は、前記円筒状部上方に位置する第１回転子
と、下方に位置する第２回転子とによって構成され、こ
れら両回転子が共に同じ方向へ回転可能に係合するとと
もに、前記第１回転子が両回転子間に介在する付勢ばね
の作用下に前記円筒状部内を上昇・下降可能かつ、上昇
時に前記頂部内面に当接可能に形成され、 前記第１回転子は、その上端部に、前記ハンドル挿入孔
の下に位置したときに挿入される前記ハンドルを受容可
能な径方向に延びる溝部と、該溝部がハンドル挿入孔の
下に位置したときに前記一対の垂下部を受容可能な凹部
とを有し、該凹部の側壁に受容した前記垂下部側面が当
接することにより、前記第１，２回転子の回転を阻止可
能に形成され、 前記溝は、前記翼部の丈よりも所要寸法だけ深く形成さ
れ、前記溝に翼部が挿入された前記ハンドルで前記第１
回転子を下方へ押圧すると、該第１回転子が前記付勢ば
ねに抗して下降して前記凹部が前記垂下部から離脱して
前記第１，２回転子が時計方向および反時計方向のいず
れかへ回転して前記蓋を解錠状態にすることが可能であ
り、前記解錠状態において前記第１回転子への押圧を解
除すると、前記第１回転子が前記ばねの作用下に上昇し
て前記垂下部の少なくとも下端部位が前記溝に受容され
ることを特徴とする前記施錠装置。1. A main body fixed to a cover such as a manhole by penetrating between the inner and outer surfaces thereof, and a claw fitting attached to the main body is disengaged from a fixing frame for the lid to lock and unlock the lid. It consists of a handle that can be in a state,
The main body has a cylindrical portion extending in the inner and outer surface directions, a diameter larger than the cylindrical portion and covering the upper end of the cylindrical portion, a top portion having an insertion hole of the handle, and an inner side of the cylindrical portion. A locking device having a rotatably housed rotatably in a circumferential direction, an upper end portion to which the handle can be engaged and disengaged, and a lower end portion to which the claw fitting is attached, wherein the handle extends vertically with a grip portion. The main body has a shaft portion and a pair of blade portions that extend symmetrically outward in the radial direction at the lower end portion of the shaft portion, and the main body has a handle insertion hole at the top so that the pair of blade portions can be inserted into and removed from the left and right portions. And a pair of narrower than the width of the wing portion and facing each other on the inner surface of the top on a line orthogonal to the hole at the center of the insertion hole in the left-right direction. A droop is formed and the rotor is forward The first rotor is located above the cylindrical portion, and the second rotor is located below. The two rotors are rotatably engaged in the same direction, and the first rotor is Under the action of a biasing spring interposed between rotors, it is formed so as to be able to rise and descend in the cylindrical portion and to come into contact with the inner surface of the top portion when rising, the first rotor is A groove extending in the radial direction capable of receiving the handle to be inserted when positioned below the handle insertion hole, and a recess capable of receiving the pair of hanging parts when the groove is positioned below the handle insertion hole. And a side surface of the hanging portion received on the side wall of the recess is formed so as to prevent rotation of the first and second rotors, and the groove has a required dimension larger than the height of the blade portion. Only deeply before the wings are inserted in the groove The first handle
When the rotor is pressed downward, the first rotor descends against the biasing spring, and the concave portion is detached from the hanging portion, and the first and second rotors move clockwise and counterclockwise. The lid can be rotated to any position to put the lid in an unlocked state, and when the pressing on the first rotor is released in the unlocked state, the first rotor rises under the action of the spring. The locking device is characterized in that at least a lower end portion of the hanging portion is received in the groove.
回転子の径方向に延びる第２の溝部である請求項１記載
の施錠装置。2. The method according to claim 1, wherein the recess is orthogonal to the groove, and the first
The locking device according to claim 1, wherein the locking device is a second groove portion extending in the radial direction of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8153529A JP2957474B2 (en) | 1996-06-14 | 1996-06-14 | Locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8153529A JP2957474B2 (en) | 1996-06-14 | 1996-06-14 | Locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH101962A true JPH101962A (en) | 1998-01-06 |
| JP2957474B2 JP2957474B2 (en) | 1999-10-04 |
Family
ID=15564524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8153529A Expired - Fee Related JP2957474B2 (en) | 1996-06-14 | 1996-06-14 | Locking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2957474B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344364A (en) * | 2004-06-02 | 2005-12-15 | Miwa Lock Co Ltd | Lock cover for manhole cover |
| WO2006013223A1 (en) * | 2004-07-22 | 2006-02-09 | SÁNCHEZ TRUJILLO, Roberto | Security device |
| JP2008297853A (en) * | 2007-06-03 | 2008-12-11 | Asahi Tec Environmental Solutions Corp | Manhole cover body locking device |
| WO2009053010A1 (en) * | 2007-10-19 | 2009-04-30 | Hydrotec Technologies Aktiengesellschaft | Device for locking a cover on a frame on a shaft, tunnel or the like |
| EP1534965A4 (en) * | 2002-08-12 | 2010-07-28 | David M Stadler | Locking device and method for catch basin and manhole covers, and the like |
| GB2468951A (en) * | 2009-03-27 | 2010-09-29 | Anthony Molloy | Lock assembly |
| GB2500979A (en) * | 2012-02-24 | 2013-10-09 | Anthony Molloy | Lock assembly with key retaining aperture |
| GB2547065A (en) * | 2016-09-19 | 2017-08-09 | Bikeaway Ltd | Bicycle locker |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100981680B1 (en) * | 2009-09-15 | 2010-09-10 | 조지현 | Manhole cover having lock and opening device |
| JP5313850B2 (en) * | 2009-12-01 | 2013-10-09 | 株式会社栃木屋 | Locking device |
-
1996
- 1996-06-14 JP JP8153529A patent/JP2957474B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1534965A4 (en) * | 2002-08-12 | 2010-07-28 | David M Stadler | Locking device and method for catch basin and manhole covers, and the like |
| JP2005344364A (en) * | 2004-06-02 | 2005-12-15 | Miwa Lock Co Ltd | Lock cover for manhole cover |
| ES2253995B1 (en) * | 2004-07-22 | 2007-07-16 | Marti Laffitte Figueras | SECURITY REGISTRATION |
| ES2253995A1 (en) * | 2004-07-22 | 2006-06-01 | Marti Laffitte Figueras | Security device |
| WO2006013223A1 (en) * | 2004-07-22 | 2006-02-09 | SÁNCHEZ TRUJILLO, Roberto | Security device |
| JP2008297853A (en) * | 2007-06-03 | 2008-12-11 | Asahi Tec Environmental Solutions Corp | Manhole cover body locking device |
| WO2009053010A1 (en) * | 2007-10-19 | 2009-04-30 | Hydrotec Technologies Aktiengesellschaft | Device for locking a cover on a frame on a shaft, tunnel or the like |
| CN101903598B (en) | 2007-10-19 | 2012-05-30 | 水利技术股份有限公司 | Device for latching covers on frames located on shafts, channels, etc. |
| GB2468951A (en) * | 2009-03-27 | 2010-09-29 | Anthony Molloy | Lock assembly |
| GB2468951B (en) * | 2009-03-27 | 2014-03-05 | Anthony Molloy | Lock assembly |
| GB2500979A (en) * | 2012-02-24 | 2013-10-09 | Anthony Molloy | Lock assembly with key retaining aperture |
| GB2500979B (en) * | 2012-02-24 | 2018-02-07 | Northstone (Ni) Ltd | Lock assembly |
| GB2547065A (en) * | 2016-09-19 | 2017-08-09 | Bikeaway Ltd | Bicycle locker |
| GB2547065B (en) * | 2016-09-19 | 2018-10-24 | Bikeaway Ltd | Bicycle locker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2957474B2 (en) | 1999-10-04 |
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