US 11,927,039 B2
Latch mechanism
Matthew Ma, Queensland (AU); Glen Pacholke, Queensland (AU); Nigel Spork, Queensland (AU); and Andrew Cooksley, Queensland (AU)
Assigned to Centor Design Pty Ltd., Queensland (AU)
Appl. No. 14/653,073
Filed by Centor Design Pty Ltd, Queensland (AU)
PCT Filed Dec. 20, 2013, PCT No. PCT/AU2013/001514
§ 371(c)(1), (2) Date Jun. 17, 2015,
PCT Pub. No. WO2014/094071, PCT Pub. Date Jun. 26, 2014.
Claims priority of application No. 2012905643 (AU), filed on Dec. 21, 2012.
Prior Publication US 2015/0330126 A1, Nov. 19, 2015
Int. Cl. E05C 19/16 (2006.01); E05B 47/00 (2006.01); E05B 53/00 (2006.01); E05B 63/20 (2006.01); E05B 65/00 (2006.01); E05C 9/00 (2006.01); E05C 9/04 (2006.01)
CPC E05C 19/163 (2013.01) [E05B 47/004 (2013.01); E05B 53/003 (2013.01); E05B 63/20 (2013.01); E05B 65/0085 (2013.01); E05C 9/00 (2013.01); E05C 9/04 (2013.01); E05C 19/168 (2013.01); Y10S 292/36 (2013.01); Y10T 292/0834 (2015.04); Y10T 292/11 (2015.04)] 14 Claims
OG exemplary drawing
 
1. A latch mechanism for latching a door or window panel to a frame, wherein the door or window panel comprises a front surface, a back surface, and one or more edge surfaces extending between the front and back surfaces, the latch mechanism comprising:
a pair of first members, a first of the pair of first members being located in an upper region of either the door or window panel or the frame, and a second of the pair of first members being located in a lower region of either the door or window panel or the frame;
a pair of second members, a first of the pair of second members being located in an upper region of the other of the door or window panel or the frame to the first of the pair of first members and a second of the pair of second members being located in a lower region of the other of the door or window panel or the frame to the second of the pair of first members, each second member being movable between an unlatched position and a latched position wherein the first of the pair of second members is brought into abutment with, or close proximity to, the first of the pair of first members and the second of the pair of second members is brought into abutment with, or close proximity to, the second of the pair of first members; and
a controller comprising a handle,
wherein the second members are adapted to move from the unlatched position to the latched position under a magnetic attraction to the respective first members when the door or window panel is brought into a closed condition,
wherein each second member is coupled to the controller via one or more linkage members, the linkage members comprising one or more cables and at least one linking arm,
wherein a locking member, being located in the upper region of the other of the door or window panel or the frame to the first of the pair of first members, or being located in the lower region of the other of the door or window panel or the frame to the second of the pair of first members, engages at least one of the second members to prevent the at least one of the second members from being forced from the latched position to the unlatched position by force applied to an end of the at least one of the second members, and one of the at least one linking arm actuates the locking member to disengage from the at least one of the second members,
wherein the latch mechanism is provided with a tension adjustment mechanism adapted to adjust the tension in the one or more linkage members, and
wherein actuation of the controller results in moving each second member from the latched position to the unlatched position, and wherein slack is allowed to exist between the at least one linking arm and the second member when the second members are in the unlatched position such that, as the first and second members are brought into proximity with one another, the slack between the at least one linking arm and the second member is sufficient to allow movement under magnetic attraction of the second members towards the first members into the latched position.