WO2009035349A3 - Improvements to closures for subsurface chambers - Google Patents

Improvements to closures for subsurface chambers Download PDF

Info

Publication number
WO2009035349A3
WO2009035349A3 PCT/NZ2008/000241 NZ2008000241W WO2009035349A3 WO 2009035349 A3 WO2009035349 A3 WO 2009035349A3 NZ 2008000241 W NZ2008000241 W NZ 2008000241W WO 2009035349 A3 WO2009035349 A3 WO 2009035349A3
Authority
WO
WIPO (PCT)
Prior art keywords
latch
driving member
mounting body
securing member
main driving
Prior art date
Application number
PCT/NZ2008/000241
Other languages
French (fr)
Other versions
WO2009035349A2 (en
Inventor
David Edward Hill
Sergio Felipe Calderon
Original Assignee
Sika Technology Ltd
David Edward Hill
Sergio Felipe Calderon
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 Sika Technology Ltd, David Edward Hill, Sergio Felipe Calderon filed Critical Sika Technology Ltd
Publication of WO2009035349A2 publication Critical patent/WO2009035349A2/en
Publication of WO2009035349A3 publication Critical patent/WO2009035349A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/006—Locks or fastenings for special use for covers or panels

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

Invention is a latch to secure a hatch to a frame of a sub-surface chamber. The latch has a latch mounting body and a main driving member pivoted from a first pivot axis of the latch mounting body. Also present is a securing member, pivoted from a second pivot axis from the latch mounting body, and a secondary driving member pivoting between distal ends of the main driving member and the securing member via third and fourth pivoting axes respectively. The latch mounting body, main driving member, securing member and secondary driving member (collectively “members”) are arranged as a four-bar linkage. The securing member and the main driving member are crossed over each other when the latch is unlocked, and when in a locked position the latch mounting body and members form an over centre latch with the securing member located between the first and third pivot axes.
PCT/NZ2008/000241 2007-09-13 2008-09-15 Improvements to closures for subsurface chambers WO2009035349A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ56147707 2007-09-13
NZ561477 2007-09-13

Publications (2)

Publication Number Publication Date
WO2009035349A2 WO2009035349A2 (en) 2009-03-19
WO2009035349A3 true WO2009035349A3 (en) 2009-04-30

Family

ID=40452726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2008/000241 WO2009035349A2 (en) 2007-09-13 2008-09-15 Improvements to closures for subsurface chambers

Country Status (1)

Country Link
WO (1) WO2009035349A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977619B1 (en) * 2011-07-04 2013-11-22 Norinco DEVICE FOR LOCKING AND UNLOCKING AT LEAST ONE RECOVERY MEMBER ON A SUPPORT FRAME OF THIS MEMBER
JP7094309B2 (en) * 2017-07-20 2022-07-01 クナウフ ギプス カーゲー Closing device, preferably a closing device for closing the seal hatch of the opening

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262726A (en) * 1964-01-22 1966-07-26 Weber Knapp Co Latch mechanism
US3446524A (en) * 1967-11-03 1969-05-27 Southco Link and lever operated toggle latch mechanism
US3924884A (en) * 1973-04-07 1975-12-09 Wilfrid Overton Limited Latches
US4230351A (en) * 1978-05-15 1980-10-28 Southco, Inc. Link and lever operated toggle latch mechanism
US4925221A (en) * 1988-09-01 1990-05-15 Vsi Corp. Toggle latch with automatic safety catch
US6168214B1 (en) * 1998-06-15 2001-01-02 Mckechnie Uk Limited Latch assembly
JP2005002698A (en) * 2003-06-13 2005-01-06 Nitto Electric Works Ltd Clamp type locking device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262726A (en) * 1964-01-22 1966-07-26 Weber Knapp Co Latch mechanism
US3446524A (en) * 1967-11-03 1969-05-27 Southco Link and lever operated toggle latch mechanism
US3924884A (en) * 1973-04-07 1975-12-09 Wilfrid Overton Limited Latches
US4230351A (en) * 1978-05-15 1980-10-28 Southco, Inc. Link and lever operated toggle latch mechanism
US4925221A (en) * 1988-09-01 1990-05-15 Vsi Corp. Toggle latch with automatic safety catch
US6168214B1 (en) * 1998-06-15 2001-01-02 Mckechnie Uk Limited Latch assembly
JP2005002698A (en) * 2003-06-13 2005-01-06 Nitto Electric Works Ltd Clamp type locking device

Also Published As

Publication number Publication date
WO2009035349A2 (en) 2009-03-19

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