EP1249543A1 - Verriegelungsvorrichtung zur gegenseitigen Verriegelung zweier Elemente, insbesondere ein Abdeckelement auf einem Stützrahmen - Google Patents

Verriegelungsvorrichtung zur gegenseitigen Verriegelung zweier Elemente, insbesondere ein Abdeckelement auf einem Stützrahmen Download PDF

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Publication number
EP1249543A1
EP1249543A1 EP20020290933 EP02290933A EP1249543A1 EP 1249543 A1 EP1249543 A1 EP 1249543A1 EP 20020290933 EP20020290933 EP 20020290933 EP 02290933 A EP02290933 A EP 02290933A EP 1249543 A1 EP1249543 A1 EP 1249543A1
Authority
EP
European Patent Office
Prior art keywords
bolt
key
cooperate
hole
light
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
EP20020290933
Other languages
English (en)
French (fr)
Other versions
EP1249543B1 (de
Inventor
Jean-Claude Hauer
Patrice Vauthier
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.)
Saint Gobain PAM SA
Original Assignee
Saint Gobain PAM 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 Saint Gobain PAM SA filed Critical Saint Gobain PAM SA
Publication of EP1249543A1 publication Critical patent/EP1249543A1/de
Application granted granted Critical
Publication of EP1249543B1 publication Critical patent/EP1249543B1/de
Priority to CY20101101171T priority Critical patent/CY1111623T1/el
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
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
    • E05B17/2069—Securing, deadlocking or "dogging" the bolt in the fastening position by means of an additional dogging movement of a sliding bolt
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0886—Sliding and swinging
    • Y10T292/0887—Operating means
    • Y10T292/0889—Cam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1022—Rigid
    • Y10T292/1028—Sliding catch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/554—Cover, lid, cap, encasing shield
    • Y10T70/5562—Removable
    • Y10T70/5575—Directly seating
    • Y10T70/558—Cover-carried lock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/554—Cover, lid, cap, encasing shield
    • Y10T70/5562—Removable
    • Y10T70/5575—Directly seating
    • Y10T70/558—Cover-carried lock
    • Y10T70/5584—Dead bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/554—Cover, lid, cap, encasing shield
    • Y10T70/5562—Removable
    • Y10T70/5575—Directly seating
    • Y10T70/558—Cover-carried lock
    • Y10T70/5589—Latching bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/554—Cover, lid, cap, encasing shield
    • Y10T70/5562—Removable
    • Y10T70/5593—Movably seating
    • Y10T70/5597—Cover-carried lock

Definitions

  • the present invention relates to a locking device for interlock two elements, including an element of covering on an element forming a support frame for this element of covering, and applies more particularly to road systems, for example to closings of manholes or inspection of an underground network, such as manholes or sidewalk, and to devices for closing technical inspection chambers underground cable network, such as hatches.
  • Locks have a mechanism that can be complex, causing a bolt to move under a strike through a specific key. They generally offer a relatively high level but their complex mechanism, often located in a corrosive and fouling environment, requires protection expensive (“noble" materials and waterproof case).
  • Locks are simple and economical devices, little sensitive to the environment, generally actuated by a key resulting in rotation a pivot with special head secured to a movable bolt under a strike. They generally offer a lower level of security, the pivot head being visible and capable of being manipulated by conventional tools.
  • the invention aims to remedy these drawbacks by creating a lock-type device that is not very sensitive to fouling and corrosion, which can easily be made invisible from the outside and inaccessible to conventional tools, in order to offer a level of inviolability and security comparable to that of a lock.
  • the invention relates to a locking device for interlock first and second elements, including a cover element on a support frame element for the element cover, of the type comprising a movable bolt and a key for actuating the bolt, and two bolt guide members carried by one of said first and second elements, the bolt comprising a light key introduction, two guide rails adapted to cooperate respectively with the two guide members, and a third ramp guide adapted to cooperate with the outline of the key when it is introduced into said light, in order to actuate the bolt selectively by a locking position to an unlocking position or a locking position unlocking in a locked position, by rotation of the key, characterized in that one of the bolt guide members is carried by the first element and formed by a wedge-shaped finger, and the guide ramp adapted to cooperate with this organ is a region of a lateral edge of the bolt having a notch forming a housing for the finger, so as to lock the bolt in the locked position and in the unlocked position.
  • the locking device illustrated in the figures is intended to mutually lock a buffer T, part of which is shown on the Figures 2, 3 and 12, and a buffer frame C, part of which is shown in mixed lines in Figures 2 and 12.
  • the tampon is provided articulation means (not shown) opposite the device for locking.
  • This locking device comprises a bolt 1 and a key 2 (figure 12) adapted to actuate the bolt selectively from a position locking in an unlocking position, and vice versa, when, after to have been introduced into a light of the bolt, it is turned in one direction or in reverse.
  • the locking and unlocking positions of the bolt are respectively a position thereof in which one of its end regions is trapped under a strike G carried by the chassis C (in phantom in Figure 2), the striker projecting towards inside the chassis, and a bolt position in which this region end is offset enough from the keeper so that the bolt is no longer engaged at all under the striker.
  • the device further comprises two members 3, 4 for guiding the bolt ( Figures 4 to 11) carried here by the buffer and adapted to cooperate respectively with two ramps for guiding the bolt.
  • One of the organs of guide may be constituted by a screw 3 for securing the bolt to buffer ; the other guide member is a fixed finger 4 which can be in one single piece with the pad, protruding below the bottom surface thereof and having a 90 ° wedge shape with the top facing one side side of the bolt as will be seen in more detail below. Thanks to this arrangement, it avoids housing the bolt in a housing whose fouling could ultimately affect the operation of the latch.
  • the bolt 1 is constituted by a plate metallic elongated angled a hundred degrees and angled also at a hundred degrees so that it presents two wings 11,12 extending approximately parallel in opposite directions respectively on either side of a connecting part 13.
  • One of the wings is an elongated guide wing 11 adapted to be secured to the buffer T by means of screw 3, being joined at moderate pressure against the underside of the buffer so that the bolt is movable in rotation around the axis of the screw as well as in translation in one direction parallel to this underside, and the other wing is a short wing of lock 12 comprising the end region 121 adapted to cooperate with the keeper G of chassis C and which will be designated in the following by "region locking end ”.
  • the guide wing 11 is pierced with an oblong hole 111 in which the screw 3 is threaded, the width of which is slightly greater than the diameter of this screw, and whose length, limited by two surfaces of the edge of the hole against which the screw is stopper respectively in the locking position and in the bolt release, extends along the longitudinal axis of the wing guide and bolt.
  • the wall 112 of the oblong hole, including the two locking and unlocking stop surfaces, thus constitutes the first ramp for guiding the bolt relative to the guide member consisting of screw 3.
  • the second bolt guide ramp is intended to block when it is in the unlocked position and in the locking, and is constituted by a region 113 of a lateral edge of the bolt which is opposite the fixed finger 4; this region 113 of the lateral edge of the bolt is located near the free end of the guide wing 11, which is located opposite the locking end region 121; she presents, plan view, a W shape with the central cut separating the two V constitutes a housing for finger 4 when the bolt is in the position of unlocking and with the side branch closest to the free end of the wing 11 constitutes a stop against the finger 4 when the bolt is in locking position.
  • the region of the free end of the guide wing 11 is further traversed right through by a light 114 for introducing the key, which does not not lead to the periphery of the bolt and whose wall 115 thus constitutes a third guide ramp forming a drive profile adapted for cooperate with the outline of the bit 21 of the key when it is introduced into the light 114.
  • Light 114 has, in plan view, a general shape approximately in square, the vertices of which would be rounded, and one present side, starting from one of the vertices of the square, a notch 116 in the shape of a right triangle.
  • One of the diagonals of the square extends along from the longitudinal axis of the guide wing and the bolt, and the other is aligned with the axis of symmetry of that of the two Vs of the W formed by the second ramp 113 which is closest to the free end of wing 11.
  • the rounded shape of the vertices of the square formed by light 114 gives the bolt movement greater progressiveness during its key operated.
  • the side of the square with the notch 116 in right triangle is the one that connects the top of the square the most near the oblong hole 111 at the top closest to the second ramp 113.
  • the top of the square where the notch 116 comes into being is the one at proximity of the second ramp 113, and from where the diagonal which is in the axis of a V of the W formed by this second ramp; the side of the notch 116 which arises at this vertex is perpendicular to this diagonal, and the second side of the notch is parallel to this same diagonal; the edge of this second side thus constitutes a stop for the bit of the key when the bolt is in the unlocked position; when the bit is in abutment against this edge, the key is in a position such that its handle grip (not shown) is perpendicular to the longitudinal axis of the bolt and therefore parallel to the axis of articulation of the buffer when the latter is equipped with a joint, thus facilitating the lifting of the tampon at way of the key.
  • the pad has, in look of this light 114, a tapered hole T1 in diameter significantly smaller than the diagonal of the square of light, preventing thus to see, from the outside, the shape of the light 114 which allows the bolt drive; so that on the one hand the key can be inserted in this hole, and that on the other hand it can cooperate with the third ramp 115 (light wall), it has an angled shape and its bit has a relatively small thickness and width; the system to multiple ramps of the bolt requiring good precision of the positioning of the key, it is necessary that the rotational movement of the bit is precisely guided and that the rod 22 of the key remains perfectly perpendicular to the guide wing 11 of the bolt during the key rotation.
  • the hole T1 has a frustoconical shape flared towards the outside face of the buffer ; in addition, a circular counterbore surrounding the hole T1, outside of the buffer, improves the guiding in rotation of the key.
  • the face of the buffer to which is attached the wing 11 comprises, around the frustoconical hole T1, a boss T2 in the form of a circular crown concentric with the hole, and the bit 21 of the key has a notch 211, centered at a distance of the axis of rotation of the key equal to the mean radius of the circular crown in boss.
  • the base of the rod 22 of the key has a collar 221 semi-circular intended to rest on the pad when the notch 211 is engaged with the boss T2.
  • the bit 21 preferably extends approximately perpendicular to the rod 22, its length being greater than the diameter of hole T1 while its width and thickness are smaller than the diameter of this hole T1, and its region of connection to the flange 221 has a frustoconical surface having a groove in curved bottom, at which level the binding region takes shape flattened facilitating the introduction of the bit in the hole T1 when the rod 22 of the key is in position almost parallel to the upper face of the pad.
  • the protrusion T2 projecting inside the lumen 114 constitutes an obstacle to the access of the third ramp 115 to hinder the introduction of a picking tool and acts as a stop for the bolt limiting the its travel, and the radius of the "rounding" of the vertices of the square located on the longitudinal axis of the bolt is approximately equal to the radius of the projecting crown forming a boss, so that the crown is housed in the apex side of the oblong hole when the bolt is in position unlocking ( Figures 7 and 8) and in the top on the free end side of the wing guide when the bolt is in the locked position ( Figures 4 and 11).
  • the length of the bit 21 (distance from the front surface of this one to the axis of the rod 22 of the key) is equal to the half-diagonal of the square ( Figures 7 and 8), the dimensions of the hole T1 being significantly smaller than the length of the bit.
  • the frustoconical surface of the hole T1 of the buffer provides a reaction effective support to the thrust of the front face of the bit 21 against the wall 115 of light 114 for actuating the bolt.
  • the bolt 1 is secured to the buffer 2 as is saw it by screw 3, passing through a machined passage hole in the buffer, of which the frustoconical head rests on an elastic member 5 inserted in a milling of this through hole, the compression of the member 5 ensuring sets the optimum pressure for its operation; opposite of the head of screw, a lock nut 6 is screwed around the body of the screw, and a washer support 7 interposed between the lock nut and the guide wing 11 of the bolt receives the latter resting around the oblong hole 111; thanks to this assembly, the screw 3 can rotate freely, without this rotation loosening the lock nut and thus leads to the release of the bolt; thus, to disassemble the bolt, it is necessary to act simultaneously on the head of screw 3 and on the lock nut located under the bolt, the lock nut being inaccessible from the outside when the buffer is in the closed position.
  • the only possibility to move the bolt is to turn the key in the direction hourly until the bit pushes a section of ramp 115 to the opposite of finger 4 on the free end side of the guide wing 11; it results from this rotation of the key as the second ramp 113 slides against finger 4 towards the top of it, until the longitudinal axis of the bolt is sufficiently inclined with respect to the straight line passing through the center of the hole for the screw 3 and the center of the hole T1, so that the second ramp 113 is completely clear of finger 4 ( Figure 5); screw 3 is then approximately in the middle of the length of the oblong hole 111; during this operation, the bolt is partially released from the grip of the strike.
  • the locking device according to the invention is economical, space-saving and insensitive to the environment because the rotation of the key in the direction of locking or in the direction of unlocking acts directly on the bolt and causes the only movement of the bolt, unlike traditional mechanisms where the rotation of the key generates additional movement of other parts coupled to the bolt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP20020290933 2001-04-13 2002-04-12 Verriegelungsvorrichtung zur gegenseitigen Verriegelung zweier Elemente, insbesondere zur Verriegelung eines Abdeckelement auf einem Stützrahmen Expired - Lifetime EP1249543B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CY20101101171T CY1111623T1 (el) 2001-04-13 2010-12-20 Διαταξη αμοιβαιας μανδαλωσεως δυο στοιχειων, ειδικα ενος στοιχειου καλυψεως επι ενος στοιχειου σχηματιζοντος πλαισιο υποστηριξεως

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0105141 2001-04-13
FR0105141A FR2823523B1 (fr) 2001-04-13 2001-04-13 Dispositif de verrouillage mutuel de deux elements, notamment un element de recouvrement sur un element formant cadre support
US10/270,392 US6735992B2 (en) 2001-04-13 2002-10-15 Device for mutually locking two elements, in particular a covering element to an element forming a support frame

Publications (2)

Publication Number Publication Date
EP1249543A1 true EP1249543A1 (de) 2002-10-16
EP1249543B1 EP1249543B1 (de) 2010-09-29

Family

ID=32737516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020290933 Expired - Lifetime EP1249543B1 (de) 2001-04-13 2002-04-12 Verriegelungsvorrichtung zur gegenseitigen Verriegelung zweier Elemente, insbesondere zur Verriegelung eines Abdeckelement auf einem Stützrahmen

Country Status (5)

Country Link
US (1) US6735992B2 (de)
EP (1) EP1249543B1 (de)
BR (1) BR0201233B1 (de)
FR (1) FR2823523B1 (de)
ZA (1) ZA200202888B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312064A1 (de) 2009-10-09 2011-04-20 Furnes-Hamjern SCC AS Verschluss für eine Einstiegsöffnung

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7357009B2 (en) * 2003-11-13 2008-04-15 Emerson Network Power, Energy Systems, North America, Inc. Pedastal closure assembly having snag-free lock
US7891904B2 (en) * 2006-06-12 2011-02-22 David Stadler Manhole cover stop mechanism
US8156773B1 (en) * 2009-06-12 2012-04-17 Olson Rodney G Manhole cover locks
US10480217B2 (en) * 2015-02-23 2019-11-19 Mg Tech Center Bv H.O.D.N. Lock Technology Universal lock with sliding blocking mechanism
US9677301B2 (en) * 2015-03-06 2017-06-13 Diversatech, Inc. Locking cover for construction vault
US9765498B2 (en) * 2015-09-15 2017-09-19 Utility Designs Of New York Llc Manhole cover locks, lockable manhole covers, and methods for locking a manhole cover
US9938686B2 (en) * 2016-02-04 2018-04-10 Utility Designs Of New York Llc Locakable manhole covers and methods for locking a manhole cover
US10654527B2 (en) * 2016-04-07 2020-05-19 Continental Automotive Systems, Inc Integrated fastener for instrumentation cluster
US20180236274A1 (en) * 2017-02-22 2018-08-23 Jeffrey D. Decker Retrieval tower and rescue method for sloped roof structures
US11183726B2 (en) * 2017-12-15 2021-11-23 Tiveni Mergeco, Inc. Clamping bar holder component for a battery module and method thereof
US11761165B1 (en) 2023-02-27 2023-09-19 David M. Stadler Manhole cover

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393006A (en) * 1920-07-13 1921-10-11 Block Alexander Lock
FR775393A (fr) * 1934-07-06 1934-12-27 Serrure à pêne rentrant dont la mobilité est obtenue par combinaison de mouvements simultanés
US2685191A (en) * 1952-02-19 1954-08-03 Ford Meter Box Company Inc Lock, primarily for meter box covers
DE19604878A1 (de) * 1996-02-10 1997-08-14 Huwil Werke Gmbh Möbelschloß
DE19621619A1 (de) * 1995-11-10 1997-11-20 Simon Karl Gmbh & Co Kg Türschloß

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US687644A (en) * 1901-11-16 Grover Scolay Latch.
US1561449A (en) * 1925-05-19 1925-11-10 Armstrong Charles John Lock for meter-box covers
US1774307A (en) * 1929-03-20 1930-08-26 Willig Bruno William Closure fastener
US2363567A (en) * 1943-06-12 1944-11-28 Henry W Blakeman Cover plate
US2608085A (en) * 1947-07-23 1952-08-26 Alfred B Castle Locking device
GB2129479B (en) * 1982-09-27 1986-03-12 Randalls Of Paddington Sliding bolt fastening
FR2594877B1 (fr) * 1986-02-24 1991-06-21 Fichet Bauche Dispositif de verrouillage et deverrouillage d'un organe quelconque, tel que par exemple une barre comportant des penes
US4964755A (en) * 1989-04-18 1990-10-23 Lew-Mor, Inc. Manhole cover lock apparatus
US5324135A (en) * 1993-04-28 1994-06-28 Dennis Smith Locking cover
US6199414B1 (en) * 2000-01-19 2001-03-13 Ming-Huang Chang Quick release locking means for a cover

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393006A (en) * 1920-07-13 1921-10-11 Block Alexander Lock
FR775393A (fr) * 1934-07-06 1934-12-27 Serrure à pêne rentrant dont la mobilité est obtenue par combinaison de mouvements simultanés
US2685191A (en) * 1952-02-19 1954-08-03 Ford Meter Box Company Inc Lock, primarily for meter box covers
DE19621619A1 (de) * 1995-11-10 1997-11-20 Simon Karl Gmbh & Co Kg Türschloß
DE19604878A1 (de) * 1996-02-10 1997-08-14 Huwil Werke Gmbh Möbelschloß

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312064A1 (de) 2009-10-09 2011-04-20 Furnes-Hamjern SCC AS Verschluss für eine Einstiegsöffnung

Also Published As

Publication number Publication date
FR2823523B1 (fr) 2003-11-21
BR0201233B1 (pt) 2010-11-16
FR2823523A1 (fr) 2002-10-18
US6735992B2 (en) 2004-05-18
US20040069024A1 (en) 2004-04-15
ZA200202888B (en) 2002-11-22
EP1249543B1 (de) 2010-09-29
BR0201233A (pt) 2003-01-14

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