A magnetically-triggered lock mechanism for interengaging two relatively movable components. The lock mechanism includes a bolt mounted within a first component composed of a first material and displaceable between retracted and extended positions to interengage with a second component when the first and second components are in a predetermined position relative to each other and the bolt is extended, and a magnetically-releasable latch mechanism positioned to latch the bolt in a retracted position, the latch mechanism including a first magnet and mounted for movement between a biased latch engaging position and a latch releasing position. A support collar composed of a second material having higher strength than that of the first material is disposed around the bolt between an inner casing and outer casing of the first component and is spaced from the bolt to allow for sliding movement of the bolt through the support collar as the bolt moves between the extended and retracted positions. The support collar absorbs and distributes to the inner and/or outer casing a load generated from the bolt as the bolt moves to the extended position through the support collar. A second magnet is positioned to displace the latch mechanism to the latch releasing position when the first component is in the predetermined position relative to the second component.

A strike plate mounting bolt assembly for resiliently mounting a strike plate to a door. The strike plate mounting bolt assembly includes a bolt and a post wherein the bolt is securably engageable with the post. The bolt is inserted through a bore in the door and the post is inserted through a bore in the strike plate. A resilient member such as at least one Belleville washer is disposed between a head of the post and a cavity in the strike plate wherein the at least one Belleville washer is compressed between the post head and cavity upon securing the bolt and post together to provide a resilient mount between the door and strike plate. The at least one Belleville washer may be a number of Belleville washers selectable stacked to form a pack of Belleville washers. By varying the number and orientation of the Belleville washers, the force/deflection characteristics of the pack may be tuned to accommodate the needs of a variety of electromagnetic lock design features.

A magnetically-triggered lock mechanism for interengaging two relatively movable components. The lock mechanism includes a bolt mounted within a first component composed of a first material and displaceable between retracted and extended positions to interengage with a second component when the first and second components are in a predetermined position relative to each other and the bolt is extended, and a magnetically-releasable latch mechanism positioned to latch the bolt in a retracted position, the latch mechanism including a first magnet and mounted for movement between a biased latch engaging position and a latch releasing position. A support collar composed of a second material having higher strength than that of the first material is disposed around the bolt between an inner casing and outer casing of the first component and is spaced from the bolt to allow for sliding movement of the bolt through the support collar as the bolt moves between the extended and retracted positions. The support collar absorbs and distributes to the inner and/or outer casing a load generated from the bolt as the bolt moves to the extended position through the support collar. A second magnet is positioned to displace the latch mechanism to the latch releasing position when the first component is in the predetermined position relative to the second component.

A magnetic lock has a magnetically operable latch having a magnetically repellable or attractable latch element. A magnetic operating device spaced from the latch has a first magnet with a respective magnetic direction and a second magnet with a respective magnetic direction. The first magnet is rotatable between a latched position with its magnetic direction generally parallel to and pointing oppositely to the magnetic direction of the second magnet for contracting a magnetic field formed by the first and second magnets, and a release position generally parallel to and with its magnetic direction pointing the same as the second magnet for extending the magnetic field to and repelling or attracting the latch element.

Disclosed is an automatic released foldable door having a two-way door structure, which foldable door comprises a first closing door device (11) and a second closing door device (13), wherein a first door leaf (2) is connected to one side of the first closing door device (11), the second closing door device has one side connected to the first door leaf (2) and the other side thereof connected to a second door leaf (6), the second door leaf (6) is a door-in-door and a two-way door structure; and the foldable door further comprises a plurality of fixing devices (3, 31, 7) and at least one hinge (4). The foldable door has a relatively small turning radius and can be folded for receiving, and the door-in-door can be rotated in different directions.

A door position sensor of an electromagnetic door lock. The electromagnetic lock also includes an electromagnet and a strike plate. The electromagnet is secured to the door frame and the strike plate is movably mounted to the door so that a controlled amount of door movement in the opening direction is permitted while the strike plate remains in contact with an energized electromagnet. The door position sensor may comprise a sensor in or on the electromagnet and a permanent magnet mounted to the door and disposed in proximity to the sensor when the door is in a closed position. The sensor may be a reed switch or a Hall Effect sensor. The permanent magnet and strike plate may be mounted to the door by a mounting tray. The mounting tray may include indicia to aid in providing a proper alignment of the strike plate to the door and electromagnet.

An appliance body of a refrigeration appliance can be closed off in its upper part by at least one door and receives a drawer in its lower part. The drawer can be locked in the closed position by a latch, which engages into a fitting part that supports the door.

A security device for a retail store display and method of use. The security device includes a securing element moveable, relative the retail store surface, from a first position to a second position to allow customer access to a product. An electromagnetic or electromagnetic lock is configured to lock the securing element in the first position, to further limit the customer access afforded by the securing element. The lockdown provided by the secondary lockdown mechanism can be used for additional protection during times of need, such as after hours or if employees are not on the sales floor.

A magnetic latch for fastening a closure member to a support. The magnetic latch comprises a latch bolt assembly comprising: a first elongated housing configured to be mounted with its rear side facing either the closure member or the support; a second housing connected to and positioned underneath the first housing, the second housing being rotatable with respect to the first housing around the vertical direction between a first rotational position in which the latch bolt assembly is operable for a right-handed closure member and a second rotational position in which the latch bolt assembly is operable for a left-handed closure member; and a latch bolt mounted in the second housing. The different rotational positions of the second housing allow using a horizontally moveable latch bolt while retaining a symmetrical placement on the closure system irrespective of the handedness of the closure member.

A magnetic latch for fastening a closure member to a support. The magnetic latch comprises a latch bolt assembly having: an elongated frame (32); a latch bolt moveable between a latching position and a retracted position; a latch bolt operating mechanism having a driving part (36) which is moveable between a rest position and an actuated position; and a locking mechanism to lock the driving part in its rest position. The locking mechanism comprises: a key actuated cylinder (51) having a rotary driving bit (52) and a locking member (54, 59, 61) mounted on the frame and moveable between an unlocking position in which the driving part is moveable, and a locking position in which, when the driving part is in its rest position, it locks the driving part in its rest position, the rotary driving bit being arranged to engage the locking member.