FR2681630A1 - SEALED LOCK FOR EQUIPPING THE DOORS OF TECHNICAL WORKS. - Google Patents

SEALED LOCK FOR EQUIPPING THE DOORS OF TECHNICAL WORKS. Download PDF

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Publication number
FR2681630A1
FR2681630A1 FR9111886A FR9111886A FR2681630A1 FR 2681630 A1 FR2681630 A1 FR 2681630A1 FR 9111886 A FR9111886 A FR 9111886A FR 9111886 A FR9111886 A FR 9111886A FR 2681630 A1 FR2681630 A1 FR 2681630A1
Authority
FR
France
Prior art keywords
well
cam
key
lock
plug
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
Application number
FR9111886A
Other languages
French (fr)
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FR2681630B1 (en
Inventor
Auduc Henri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BARAT SA
Original Assignee
BARAT SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BARAT SA filed Critical BARAT SA
Priority to FR9111886A priority Critical patent/FR2681630B1/en
Priority to DE69212104T priority patent/DE69212104T2/en
Priority to AT92440108T priority patent/ATE140294T1/en
Priority to EP92440108A priority patent/EP0538160B1/en
Publication of FR2681630A1 publication Critical patent/FR2681630A1/en
Application granted granted Critical
Publication of FR2681630B1 publication Critical patent/FR2681630B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B11/00—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys
    • E05B11/02—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys before the wing is locked
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/08—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted for adjusting the discs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/001—Locks or fastenings for special use for gas- or watertight wings

Landscapes

  • Lock And Its Accessories (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Details Of Aerials (AREA)

Abstract

Field lock intended particularly for equipping the doors of technical structures. It comprises a case (10) surmounted by a well (11) which can be closed off by a plug (12), in which a female cavity (13) is made, the well (11) having a bottom (16) pierced with an orifice (17) of particular shape, under which is arranged a cam (3) provided with a dog (30) for controlling the bolt (15) and comprising, on its upper face, a cavity (31) of polygonal shape, into which can be fitted the end (23) of a key (2), in order to effect the rotation of the said cam (3) for the purpose of actuating the bolt (15), the end (23) of the key (2) having a cutout identical to that of the orifice (17) of the bottom (16) of the well (11), the cam (3) on the other hand having passing axially through it a cylindrical duct (32) opening onto the knob (4) of a secret lock, the upper face of which comprises a transverse slot (40).

Description

La présente invention a pour objet une serrure destinée à équiper lesThe present invention relates to a lock intended to equip the

portes des ouvrages techniques, notamment des réseaux électriques ou téléphoniques souterrains. De tels ouvrages doivent être fermés et leur accès réservé aux seules personnes autorisées Actuellement les portes de ces ouvrages sont munies de serrures classiques comportant un barillet Cela présente des inconvénients, d'une part en ce qui concerne la gestion des clés, plusieurs personnes devant être amenées à pénétrer dans lesdits ouvrages, d'autre part en ce que l'implantation de ces derniers entraînent lesdites serrures à être exposées à la  doors of technical works, especially underground electrical or telephone networks. Such works must be closed and their access restricted to authorized persons. Currently, the doors of these works are provided with conventional locks comprising a barrel. This has drawbacks, on the one hand with regard to key management, several persons to be brought into said structures, on the other hand in that the implantation of the latter causes said locks to be exposed to the

poussière et à l'humidité, ce qui nuit à leur fiabilité.  dust and moisture, which affects their reliability.

La présente invention permet de remédier à ces inconvénients en proposant une serrure étanche, notamment aux eaux de ruissellement, ne nécessitant qu'une seule clé qui permet à une personne autorisée d'une part l'accès à l'ouverture et d'autre part l'ouverture proprement dite de la serrure. La serrure objet de la présente invention comporte un boîtier surmonté d'un puits d'accès à l'intérieur dudit boîtier, ce puits comportant intérieurement un filetage permettant le vissage d'un bouchon sur lequel est pratiquée une empreinte polygonale autorisant le positionnement d'un outil, un joint torique en élastomère qui s'intercale entre l'épaulement du bouchon et le bord du puits assurant  The present invention overcomes these disadvantages by providing a tight lock, including runoff, requiring only one key that allows a person authorized on the one hand access to the opening and secondly the actual opening of the lock. The lock object of the present invention comprises a casing surmounted by an access well inside said casing, this well having internally a threading allowing the screwing of a plug on which is practiced a polygonal impression allowing the positioning of a tool, an elastomer O-ring that is inserted between the shoulder of the plug and the edge of the well ensuring

l'étanchéité de leur assemblage.the tightness of their assembly.

Conformément à l'invention, le fond du puits est percé d'un orifice d'une forme particulière identique à celle de l'extrémité d'une clé, et sous cet orifice est disposée une came qui peut tourner sous l'action de la clé pour actionner la rentrée ou la sortie du pène A cet effet la came est munie à sa face en regard de l'orifice du puits d'une empreinte de forme polygonale dans laquelle la clé peut s'inscrire après  According to the invention, the bottom of the well is pierced with an orifice of a particular shape identical to that of the end of a key, and under this orifice is disposed a cam which can rotate under the action of the key for actuating the return or exit of the bolt For this purpose the cam is provided on its face opposite the hole of the well of a polygonal shape imprint in which the key can register after

passage dans ledit orifice du fond de puits.  passage in said hole from the bottom of the well.

Conformément à l'invention, cette empreinte est de forme différente de celle de l'extrémité de la clé, tout en permettant à cette dernière de s'y inscrire de manière que, après passage de la clé à travers l'orifice du fond du puits,, sa rotation dans l'empreinte de la came entraîne son blocage dans la serrure lors de l'actionnement du pêne, ce blocage étant bien entendu subordonné à l'amplitude de la rotation entraînant le retrait du pêne. Conformément à l'invention, la came est d'autre part percée axialement d'un orifice donnant accès à la molette d'une serrure à secret du type de celle décrite dans le brevet  According to the invention, this impression is of a different shape from that of the end of the key, while allowing the latter to register so that, after passage of the key through the bottom hole of the well, its rotation in the cam impression causes its locking in the lock when actuating the bolt, this blocking being of course subordinate to the amplitude of the rotation causing the withdrawal of the bolt. According to the invention, the cam is on the other hand axially pierced with an orifice giving access to the knob of a secret lock of the type of that described in the patent.

français 2 436 237, autorisant ou non la rotation de la came.  French 2 436 237, authorizing or not the rotation of the cam.

La commande de la molette s'effectue en introduisant dans l'orifice du fond du puits, puis au travers de la came, un outil comportant l'empreinte adéquate, ce  The command of the wheel is carried out by introducing into the hole of the bottom of the well, then through the cam, a tool having the adequate impression, this

préalablement à l'introduction de la clé dans le puits.  prior to the introduction of the key into the well.

L'ouverture de la serrure objet de la présente invention nécessite ainsi, dans un premier temps, la dépose du bouchon au moyen d'un outil comportant l'empreinte adéquate, puis la manoeuvre correspondant au code de déverrouillage de la serrure à secret au moyen d'un autre outil comportant lui aussi une %empreinte adéquate, enfin l'introduction dans le puits d'une clé dont l'extrémité peut être introduite à travers l'orifice du fond dudit puits, jusque que dans  The opening of the lock object of the present invention thus requires, in a first step, the removal of the plug by means of a tool having the adequate impression, then the maneuver corresponding to the unlock code of the secret lock by means of another tool also having an adequate imprint, finally the introduction into the well of a key whose end can be introduced through the bottom hole of said well, until in

l'empreinte de la came.the impression of the cam.

Selon un mode de réalisation préférentiel de l'invention, l'empreinte de la came est la même que celle du bouchon du puits, pouvant par exemple présenter une forme hexagonale tandis que l'orifice du fond du puits et l'extrémité de la clé peuvent présenter une section en forme  According to a preferred embodiment of the invention, the impression of the cam is the same as that of the well plug, which may for example have a hexagonal shape while the hole in the bottom of the well and the end of the key may have a shaped section

d'un hexagone dont un côté sur deux serait creusé en demi-  a hexagon of which one side out of two would be dug in half

cercle. Ce mode de réalisation préférentiel permet d'utiliser la clé d'une part comme outil pour dévisser le  circle. This preferred embodiment makes it possible to use the key on the one hand as a tool for unscrewing the

bouchon du puits, et d'autre part pour actionner la serrure.  well plug, and secondly to operate the lock.

Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la  The advantages and features of the present invention will emerge more clearly from the

description qui suit et qui se rapporte au dessin annexé,  description which follows and which refers to the annexed drawing,

lequel en représente un mode de réalisation non limitatif.  which represents a non-limiting embodiment thereof.

Dans le dessin annexé: la figure 1 représente une vue en perspective de  In the appended drawing: FIG. 1 represents a perspective view of

la serrure selon l'invention.the lock according to the invention.

la figure 2 représente une vue en perspective de la clé permettant d'effectuer les opérations nécessaires à l'ouverture de la serrure. les figures 3 a et 3 b représentent des vues  Figure 2 shows a perspective view of the key to perform the operations necessary to open the lock. Figures 3a and 3b show views

respectivement en plan et de profil de la même serrure.  respectively in plan and profile of the same lock.

Si on se réfère à la figure 1 on peut voir que la serrure 1 selon l'invention comporte un boîtier 10 surmonté d'un puits 11 obturable par un bouchon 12 dans lequel est pratiquée une empreinte femelle hexagonale 13, l'étanchéité entre le puits 11 et le bouchon 12 étant assurée au moyen d'un joint torique 14 Le boîtier 10 comporte également un pène 15 susceptible de se loger dans une gâche solidaire du dormant,  With reference to FIG. 1, it can be seen that the lock 1 according to the invention comprises a housing 10 surmounted by a well 11 which can be closed by a plug 12 in which a hexagonal female cavity 13 is formed, the sealing between the well 11 and the plug 12 being provided by means of an O-ring 14 The housing 10 also comprises a bolt 15 capable of being housed in a striker integral with the frame,

la serrure 1 étant fixée sur l'ouvrant.  the lock 1 being fixed on the opening.

Si on se réfère maintenant à la figure 2 on peut voir que la clé 2 destinée à effectuer les opérations de déverrouillage de la serrure 1 a la forme d'un T dont la branche transversale 20 sert de poignée et comporte à l'une de ses extrémités un méplat 21 L'extrémité de l'autre branche 22 comporte une empreinte mâle 23 s'inscrivant dans un hexaèdre dont les six faces sont en alternance plates et creusées en  Referring now to Figure 2 it can be seen that the key 2 for performing the unlocking operations of the lock 1 has the shape of a T whose transverse branch 20 serves as a handle and comprises at one of its The end of the other branch 22 has a male footprint 23 forming part of a hexahedron whose six faces are alternately flat and hollowed out.

demi-cylindres 24.half cylinders 24.

Si on se réfère maintenant aux figures 3 a et 3 b on peut voir que le puits 11 comporte un fond 16 percé d'un orifice 17 de forme identique à celle de l'empreinte 23 de la clé 2 Sous ce fond 16 une came 3, munie d'un ergot 30 de commande du pène 15, comporte à sa face supérieure une empreinte hexagonale 31 Cette came 3 est traversée axialement, dans le milieu de l'empreinte hexagonale 31, par un perçage cylindrique 32 débouchant sur la molette 4 d'une serrure à secret dont la face supérieure comporte une fente -transversale 40 adaptée à recevoir le méplat 21 de la branche  Referring now to FIGS. 3a and 3b, it can be seen that the well 11 comprises a bottom 16 pierced with an orifice 17 of identical shape to that of the footprint 23 of the key 2. , provided with a pin 30 for controlling the bolt 15, has on its upper face a hexagonal recess 31 This cam 3 is traversed axially, in the middle of the hexagonal imprint 31, by a cylindrical bore 32 opening on the wheel 4 d a secret lock whose upper face comprises a transverse slot 40 adapted to receive the flat 21 of the branch

transversale de la clé 2.transverse of the key 2.

Ainsi l'empreinte 23 de la clé 2 permet d'une part la dépose du bouchon 12, en correspondant à l'empreinte 13 dudit bouchon, et d'autre part le passage de la clé 2 à travers l'orifice 17 du fond 16 du puits 11, ainsi que son  Thus the footprint 23 of the key 2 allows on the one hand the removal of the plug 12, corresponding to the footprint 13 of said plug, and secondly the passage of the key 2 through the orifice 17 of the bottom 16 well 11, as well as its

positionnement dans l'empreinte femelle 31 de la came 3.  positioning in the female cavity 31 of the cam 3.

Le méplat 21 de la branche transversale 20 de la clé 2 permet d'actionner la molette 4 par passage à travers l'orifice 32 pratiqué dans la came 3, en s'inscrivant dans la fente 40 de la molette 4, cette opération intervenant immédiatement après la dépose du bouchon, avant l'introduction de la clé dans l'empreinte femelle 31 de la came 3 en vue  The flat part 21 of the transverse branch 20 of the key 2 makes it possible to actuate the wheel 4 by passing through the orifice 32 made in the cam 3, by entering into the slot 40 of the wheel 4, this operation intervening immediately. after removal of the plug, before the introduction of the key in the female cavity 31 of the cam 3 in view

d'actionner le retrait du pène 15.to activate the withdrawal of the bolt 15.

La serrure 1 selon l'invention doit être solidarisée à l'ouvrant, de manière que lorsque celui-ci est ouvert, on puisse accéder à la combinaison de la serrure à secret, pour en modifier la combinaison, s'il y a lieu, par un  The lock 1 according to the invention must be secured to the opening, so that when it is open, we can access the combination of the lock secret, to change the combination, if necessary, by a

orifice 18 pratiqué à-l'arrière du boîtier 10.  orifice 18 made at the rear of the housing 10.

Il convient de souligner que le dispositif selon l'invention permet de bloquer la clé dans la serrure après l'ouverture de cette dernière, du fait de la différence de forme de l'orifice 17 du fond du puits Il et de l'empreinte 31 de la came 3, ce blocage impliquant que la rotation de la came ( 3) qui entraîne le retrait du pène ( 15) soit d'un angle  It should be emphasized that the device according to the invention allows to lock the key in the lock after the opening of the latter, because of the difference in shape of the orifice 17 of the bottom of the well 11 and the imprint 31 of the cam 3, this blocking implying that the rotation of the cam (3) which causes the withdrawal of the bolt (15) is at an angle

inférieur à 120 .less than 120.

Il va de soi que la présente invention ne saurait  It goes without saying that the present invention can not

être limitée à la description qui précède d'un de ses modes de  be limited to the foregoing description of one of its modes of

réalisation, susceptible de subir un certain nombre de  realization, likely to undergo a number of

modifications sans sortir pour autant du cadre de l'invention.  modifications without departing from the scope of the invention.

Claims (4)

REVENDICATIONS 1) Serrure étanche destinée notamment à équiper les portes des ouvrages techniques, caractérisée en ce qu'elle comprend un boîtier ( 10) surmonté d'un puits ( 11) obturable par un bouchon ( 12) vissé dans le puits ( 11) et dans lequel est pratiquée une empreinte femelle ( 13), le puits ( 11) comportant un fond ( 16) percé d'un orifice ( 17) de forme particulière sous lequel est disposée une came ( 3) munie d'un ergot ( 30) de commande du pêne ( 15) et comportant à sa face supérieure une empreinte ( 31) de forme polygonale dans laquelle peut s'inscrire l'extrémité ( 23) d'une clé ( 2) afin d'opérer la rotation de ladite came ( 3) en vue de l'actionnement du pêne ( 15), ladite extrémité ( 23) de la clé ( 2) présentant une découpe identique à celle de l'orifice ( 17) du fond ( 16) du puits ( 11), la came-( 3) étant d'autre part traversée axialement, dans le milieu de l'empreinte polygonale ( 31), d'un perçage cylindrique ( 32) débouchant sur la molette ( 4) d'une serrure à secret, dont la face supérieure comporte une fente  1) Watertight lock intended in particular to equip the doors of the technical structures, characterized in that it comprises a housing (10) surmounted by a well (11) closable by a plug (12) screwed into the well (11) and in which is made a female cavity (13), the well (11) having a bottom (16) pierced with a hole (17) of particular shape under which is disposed a cam (3) provided with a pin (30) of control of the bolt (15) and having on its upper face a cavity (31) of polygonal shape in which the end (23) of a key (2) can be registered in order to operate the rotation of said cam (3). ) for actuating the bolt (15), said end (23) of the key (2) having a cutout identical to that of the hole (17) of the bottom (16) of the well (11), the cam - (3) on the other hand being traversed axially, in the middle of the polygonal cavity (31), a cylindrical bore (32) opening on the wheel (4) a secret lock, the upper side of which has a slot transversale ( 40) destinée à recevoir un outil de forme adaptée.  cross member (40) for receiving a tool of suitable shape. 2) Serrure selon la revendication 1, caractérisée en ce qu'un joint torique est disposé entre le bouchon ( 12) et le puits  2) Lock according to claim 1, characterized in that an O-ring is disposed between the plug (12) and the well ( 11).(11). 3) Serrure selon la revendication 1 ou la revendication 2, caractérisée en ce que l'empreinte ( 13) pratiquée dans le bouchon ( 12) est identique à l'empreinte ( 31) de la came ( 3), le même outil permettant d'opérer le dévissage dudit bouchon ( 12) et la  3) A lock according to claim 1 or claim 2, characterized in that the cavity (13) formed in the plug (12) is identical to the cavity (31) of the cam (3), the same tool allowing unscrewing said plug (12) and rotation de la came ( 3) en vue de l'actionnement du pêne ( 15).  rotation of the cam (3) in order to actuate the bolt (15). 4) Serrure selon l'une quelconque des revendications 1 à 3,  4) Lock according to any one of claims 1 to 3, caractérisée en ce que la clé ( 2) a la forme drun T dont la branche transversale ( 20) sert de poignée et comporte à l'une de ses extrémités un méplat ( 21) apte à s'insérer dans la fente ( 40) de la molette ( 4), tandis que son autre branche comporte à son extrémité une empreinte mâle ( 23) ayant la forme d'un hexaèdre  characterized in that the key (2) has the shape drun T whose transverse branch (20) serves as a handle and comprises at one of its ends a flat (21) adapted to be inserted into the slot (40) of the wheel (4), while its other branch has at its end a male footprint (23) having the shape of a hexahedron dont les six faces sont en alternance plates et creusées en demi-  whose six faces are alternately flat and hollowed in half cylindres ( 24), en sorte que la clé ( 2) permet d'une part d'opérer le dévissage du bouchon ( 12), d'autre part d'actionner la molette ( 4) de la serrure à secret et enfin d'actionner le  cylinders (24), so that the key (2) allows on the one hand to operate the unscrewing of the plug (12), on the other hand to actuate the wheel (4) of the lock to secret and finally to operate the déplacement du pêne ( 15).movement of the bolt (15).
FR9111886A 1991-09-23 1991-09-23 WATERPROOF LOCK FOR FITTING THE DOORS WITH TECHNICAL WORKS. Expired - Lifetime FR2681630B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9111886A FR2681630B1 (en) 1991-09-23 1991-09-23 WATERPROOF LOCK FOR FITTING THE DOORS WITH TECHNICAL WORKS.
DE69212104T DE69212104T2 (en) 1991-09-23 1992-09-23 Watertight lock, especially for the door of a technical building
AT92440108T ATE140294T1 (en) 1991-09-23 1992-09-23 WATERPROOF LOCK, ESPECIALLY FOR THE DOOR OF AN TECHNICAL BUILDING
EP92440108A EP0538160B1 (en) 1991-09-23 1992-09-23 Weather proof lock, especially for the door of a technical construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9111886A FR2681630B1 (en) 1991-09-23 1991-09-23 WATERPROOF LOCK FOR FITTING THE DOORS WITH TECHNICAL WORKS.

Publications (2)

Publication Number Publication Date
FR2681630A1 true FR2681630A1 (en) 1993-03-26
FR2681630B1 FR2681630B1 (en) 1993-12-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9111886A Expired - Lifetime FR2681630B1 (en) 1991-09-23 1991-09-23 WATERPROOF LOCK FOR FITTING THE DOORS WITH TECHNICAL WORKS.

Country Status (4)

Country Link
EP (1) EP0538160B1 (en)
AT (1) ATE140294T1 (en)
DE (1) DE69212104T2 (en)
FR (1) FR2681630B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727553A1 (en) * 1995-02-15 1996-08-21 Kabushiki Kaisha Aiaishi Locking device
FR2742018A1 (en) * 1995-12-05 1997-06-06 Barat Sa Connection box for urban analogue-digital electrical networks
FR2898376A1 (en) * 2006-03-09 2007-09-14 La Rouere Richard De Locking system for hammer of ground plug comprises sleeve mounted between tubular legs which fits against base of hammer, shaft with impression at one end controlling unlocking and control rod fitting into notch in unlocking shaft

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06257331A (en) * 1993-03-04 1994-09-13 Takigen Seizo Kk Detachable type lock handle device
AU2002223937A1 (en) * 2000-11-22 2002-06-03 Bryan Michael Risi A locking mechanism
FR2833987B1 (en) * 2001-12-21 2004-02-06 France Telecom LOCKING DEVICE FOR ACCESS TO INFRASTRUCTURE LOCATED ON THE PUBLIC HIGHWAY
CN103628746B (en) * 2013-12-17 2015-11-18 中国人民解放军理工大学 A kind of security lock arrangement of protective airtight partition door for subway district

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388298A (en) *
US4142390A (en) * 1977-02-22 1979-03-06 Schroeder Vernon E Double safety latch for trailer doors
FR2436237A1 (en) * 1978-09-15 1980-04-11 Poumaredes & Martinet Secondary mechanism for lever lock - uses coaxial ratchet controlled wheels of which radial slots must align to authorise bolt retraction
FR2592910A1 (en) * 1986-01-10 1987-07-17 Merlin Gerin Shutter of a lock hole designed as a temporary key

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388298A (en) *
US4142390A (en) * 1977-02-22 1979-03-06 Schroeder Vernon E Double safety latch for trailer doors
FR2436237A1 (en) * 1978-09-15 1980-04-11 Poumaredes & Martinet Secondary mechanism for lever lock - uses coaxial ratchet controlled wheels of which radial slots must align to authorise bolt retraction
FR2592910A1 (en) * 1986-01-10 1987-07-17 Merlin Gerin Shutter of a lock hole designed as a temporary key

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727553A1 (en) * 1995-02-15 1996-08-21 Kabushiki Kaisha Aiaishi Locking device
FR2742018A1 (en) * 1995-12-05 1997-06-06 Barat Sa Connection box for urban analogue-digital electrical networks
FR2898376A1 (en) * 2006-03-09 2007-09-14 La Rouere Richard De Locking system for hammer of ground plug comprises sleeve mounted between tubular legs which fits against base of hammer, shaft with impression at one end controlling unlocking and control rod fitting into notch in unlocking shaft

Also Published As

Publication number Publication date
DE69212104T2 (en) 1997-03-27
ATE140294T1 (en) 1996-07-15
DE69212104D1 (en) 1996-08-14
EP0538160B1 (en) 1996-07-10
FR2681630B1 (en) 1993-12-31
EP0538160A1 (en) 1993-04-21

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