A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved twist lock/latch
Abstract A rotary latch (10), in particular a rotary compression lock, is disclosed, for mounting in a closure such as a door, lid or the like. The rotary latch includes a housing (16) defining an aperture (20) , a handle (14) pivoted to a shaft (24) extending through the housing. The shaft (24) defines a longitudinal axis about which a body portion (24) is mounted for rotation and constrained to turn as the handle (14) is turned. The body portion (24) is located on an opposite side of the housing to the handle and defines a tongue for engagement with a frame. The handle (14), being pivoted to the shaft (24), may be swivelled about the pivot to lie generally flush with the housing, creating a mechanical pull on the shaft, therefore compressing the lock. To open the lock, the handle (14) must be lifted to a decompressed position, then may be turned clockwise, or anti clockwise to open the lock. A stop (120) may optionally be fixed to the body portion (24) to inhibit rotation of the handle in an anti clockwise or clockwise direction. The body portion (24) defines two pins (70, 72), typically defining through holes for the attachment of linkage arms thereto, which extend outwards from the plane of the body portion in the opposite direction to the handle and parallel to the axis of rotation. The arms, are arranged on opposite sides of the axis of rotation and co-linear with each other and with the axis of rotation of the body portion and in a line which is generally perpendicular to the axis of the tongue. O-y 00 No 00 )
Improved twist lock/latch
Abstract A rotary latch (10), in particular a rotary compression lock, is disclosed, for mounting in a closure such as a door, lid or the like. The rotary latch includes a housing (16) defining an aperture (20) , a handle (14) pivoted to a shaft (24) extending through the housing. The shaft (24) defines a longitudinal axis about which a body portion (24) is mounted for rotation and constrained to turn as the handle (14) is turned. The body portion (24) is located on an opposite side of the housing to the handle and defines a tongue for engagement with a frame. The handle (14), being pivoted to the shaft (24), may be swivelled about the pivot to lie generally flush with the housing, creating a mechanical pull on the shaft, therefore compressing the lock. To open the lock, the handle (14) must be lifted to a decompressed position, then may be turned clockwise, or anti clockwise to open the lock. A stop (120) may optionally be fixed to the body portion (24) to inhibit rotation of the handle in an anti clockwise or clockwise direction. The body portion (24) defines two pins (70, 72), typically defining through holes for the attachment of linkage arms thereto, which extend outwards from the plane of the body portion in the opposite direction to the handle and parallel to the axis of rotation. The arms, are arranged on opposite sides of the axis of rotation and co-linear with each other and with the axis of rotation of the body portion and in a line which is generally perpendicular to the axis of the tongue. O-y 00 No 00 )
Improved twist lock/latch
BAO JOHN (author) / RODRIQUEZ FACUNDRO (author)
2021-03-04
Patent
Electronic Resource
English