DE69603310D1 - Locking device for a manhole cover that can be operated from both sides - Google Patents

Locking device for a manhole cover that can be operated from both sides

Info

Publication number
DE69603310D1
DE69603310D1 DE69603310T DE69603310T DE69603310D1 DE 69603310 D1 DE69603310 D1 DE 69603310D1 DE 69603310 T DE69603310 T DE 69603310T DE 69603310 T DE69603310 T DE 69603310T DE 69603310 D1 DE69603310 D1 DE 69603310D1
Authority
DE
Germany
Prior art keywords
cover
manhole cover
arm
shaped
operated
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.)
Expired - Fee Related
Application number
DE69603310T
Other languages
German (de)
Other versions
DE69603310T2 (en
Inventor
Robert Tremouilhac
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.)
Norinco SA
Original Assignee
SODIF 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 SODIF SA filed Critical SODIF SA
Publication of DE69603310D1 publication Critical patent/DE69603310D1/en
Application granted granted Critical
Publication of DE69603310T2 publication Critical patent/DE69603310T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • E02D29/1463—Hinged connection of cover to frame
    • 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
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0065—Operating modes; Transformable to different operating modes
    • E05B63/0069—Override systems, e.g. allowing opening from inside without the key, even when locked from outside
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/162—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away of the plane of the wing or frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Lock And Its Accessories (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Clamps And Clips (AREA)
  • Window Of Vehicle (AREA)
  • Paper (AREA)

Abstract

The locking mechanism consists of a hook-shaped catch (10) on the inside of the manhole cover surrounding frame (2), designed to receive a peg (17) on one end of an inverted L-shaped arm pivoted to a bracket (14) on the underside of the cover (4). The arm is rotated to release the catch by a lever (13) with a cam-shaped end which is let into a recess in the cover or, from below, by a chain or cable (18) connected to the tip of the arm's upper horizontal section. When the manhole cover is closed, the control lever is fixed in place by a shutter (15) and a bolt (30) which screws into a nut (32) under a plate (28) in the cover recess. The cover can be equipped with a gas cylinder to facilitate lifting.
DE69603310T 1995-04-14 1996-04-10 Locking device for a manhole cover that can be operated from both sides Expired - Fee Related DE69603310T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9504857A FR2732988B1 (en) 1995-04-14 1995-04-14 RELEASABLE LOCKING DEVICE ON BOTH SIDES OF A LOOK

Publications (2)

Publication Number Publication Date
DE69603310D1 true DE69603310D1 (en) 1999-08-26
DE69603310T2 DE69603310T2 (en) 1999-11-11

Family

ID=9478375

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69603310T Expired - Fee Related DE69603310T2 (en) 1995-04-14 1996-04-10 Locking device for a manhole cover that can be operated from both sides

Country Status (5)

Country Link
EP (1) EP0737782B1 (en)
AT (1) ATE182385T1 (en)
DE (1) DE69603310T2 (en)
ES (1) ES2136960T3 (en)
FR (1) FR2732988B1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758836B1 (en) * 1997-01-30 1999-03-05 Norinco DEVICE FOR LOCKING A BUFFER WITH ARTICULATED MOUNTING ON A FRAME
KR20010041798A (en) * 1998-03-09 2001-05-25 스티븐 제이. 켈리 Latch
FR2887268B1 (en) * 2005-06-15 2007-08-10 Norinco Sa DEVICE FOR CHECKING THE POSITION FOR LOCKING OR UNLOCKING A LATCH FOR BLOCKING A FRAME FOR A CLOSURE COVER OF THIS FRAMEWORK
ES2301355B1 (en) 2006-05-11 2009-03-16 Nad S.L. OPENING AND CLOSING DEVICE FOR MOTORCYCLE CASES.
DE202008015182U1 (en) * 2008-11-13 2010-04-08 Paul Wolff Gmbh Automatic cover device
GB201114349D0 (en) * 2011-08-19 2011-10-05 Underground Vision Uk Ltd Manhole cover support device
KR101300700B1 (en) * 2013-01-17 2013-08-26 대전광역시 시설관리공단 Break away for prevention of manhole cover
SE538235C2 (en) * 2014-07-17 2016-04-12 Amphi Tech Ab Säkerhetsmanlucka
GB2542506B (en) * 2015-09-17 2021-03-24 Neenah Foundry Company Manhole cover assembly
GB2543642B (en) * 2015-09-17 2021-01-20 Neenah Foundry Company Manhole cover assembly
US10233609B2 (en) 2017-04-19 2019-03-19 Neenah Foundry Company Floating manhole cover assembly
CN107123437A (en) * 2017-05-04 2017-09-01 东莞市品宇电子科技有限公司 A kind of portable type is external and slot hard disc device
US11414829B2 (en) 2019-10-07 2022-08-16 Neenah Foundry Company Hybrid manhole cover
FR3104620B1 (en) * 2019-12-17 2022-03-18 B R Z Services fireproof floor hatch with improved mechanical strength
EP4032833A1 (en) * 2021-01-20 2022-07-27 Villiger Entsorgungssysteme AG Safety device for a dump pit of an underfloor waste container
GB2622368A (en) * 2022-09-13 2024-03-20 Cubis Systems Ltd A lift lock mechanism

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793975A (en) * 1955-11-02 1958-04-23 Wilmot Breeden Ltd Refrigerator or like door fastenings
FR2424372A1 (en) * 1978-04-24 1979-11-23 Dumortier Robert Lever latch securing circular manhole cover to frame - has lateral V=shape with apex axle top leg forming hand lever and lower leg including bolt hook
JPS58178728A (en) * 1982-04-13 1983-10-19 Yoichi Hara Steel cover with locking mechanism
US4960297A (en) * 1989-09-28 1990-10-02 Component Hardware Group, Inc. Double action latch

Also Published As

Publication number Publication date
FR2732988B1 (en) 1997-06-13
EP0737782A1 (en) 1996-10-16
FR2732988A1 (en) 1996-10-18
ATE182385T1 (en) 1999-08-15
ES2136960T3 (en) 1999-12-01
EP0737782B1 (en) 1999-07-21
DE69603310T2 (en) 1999-11-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NORINCO S.A., ST. CREPIN IBOUVILLERS, FR

8339 Ceased/non-payment of the annual fee