An item may be provided with a body that forms an enclosure. The body (12) may have body portions (16, 18) that open and close along a seam (14). An elongated magnetic fastener (36) may run along the seam. The magnetic fastener may have first (38) and second (40) portions on opposing sides of the seam. The first and second portions may include magnets. When the magnetic fastener is operated in a closed state, the magnets in the first and second portions attract each other and pull the first and second portions of the fastener together to close the seam. When the magnetic fastener is operated in an open state, the magnets in the first and second portions repel each other and push the first and second portions of the fastener apart to open the seam.

A collinear latching and locking system is disclosed. In embodiments, the system includes a strike with a lock bolt disposed at or defined by an end of the strike. The system further includes a latch pawl configured to surround at least a portion of the strike. The strike and the latch pawl are configured to actuate linearly along the same axis. In this regard, the strike and the latch pawl have a collinear configuration and actuation path. The system further includes a latch cam configured to actuate the latch pawl from a latched position to an unlatched position when the latch cam is turned.

An anti-collision system and an anti-collision method are disclosed. The anti-collision system includes a first circuit and a magnetic device arranged on the door body and the door frame respectively, the first circuit includes a first power source, a first coil, and a first switch circuit connecting the first power source and the first coil; when a speed sensor detects that the rotation speed of the door body is too high, a control terminal controls the first switch circuit to switch on, such that the first coil is connected to the first power source to generate a first magnetic field, which causes a repulsive force to reduce the rotation speed of the door; when the rotation speed of the door body is reduced to a preset value, the control terminal controls the first switch circuit to switch off, the repulsive force disappears, and the door body is closed smoothly.

A latch dogging assembly comprises an electromagnet and an actuator mounted on a bracket. A guide slide is pivotally mounted on the bracket with a lead block coupled to the guide slide. A guide pin rides along an inner surface of the bracket causing the guide slide to pivot. A pawl is slidably engaged with the guide slide. A guide link includes a post. An armature is mounted to the panic bar and the post engages the pawl. When the actuator is energized to move the lead block, the pawl engages the post to pivot the armature and thereby cause the panic bar to move from the extended position to the depressed position. When the electromagnet is energized the armature is magnetically held preventing reverse pivoting of the guide link. A method for fully retracting a door latch is also provided.

An anti-collision system and an anti-collision method are disclosed. The anti-collision system includes a first circuit and a magnetic device arranged on the door body and the door frame respectively, the first circuit includes a first power source, a first coil, and a first switch circuit connecting the first power source and the first coil; when a speed sensor detects that the rotation speed of the door body is too high, a control terminal controls the first switch circuit to switch on, such that the first coil is connected to the first power source to generate a first magnetic field, which causes a repulsive force to reduce the rotation speed of the door; when the rotation speed of the door body is reduced to a preset value, the control terminal controls the first switch circuit to switch off, the repulsive force disappears, and the door body is closed smoothly.

Disclosed is a self-latching gate latch device. The device comprises a latch and a magnet assembly housing. The latch assembly housing, secured to a hinged gate, comprises a slidable horizontal latch bar, attractable by a magnet. The magnet assembly housing comprises a slidable vertical magnet bar secured with a magnet at the bottom thereof. In a lock position of the magnet bar, the latch bar engages the magnet. The magnet assembly housing further comprises a locking member that, in an engagement position, engages the magnet bar to the magnet assembly housing preventing the magnet bar from any upward movement. Within the magnet bar is disposed a lock bar, which when depressed, frees the magnet bar.

An exemplary lockset includes a mortise case, a magnet assembly mounted in the mortise case, and a manual actuator operable to move the magnet assembly between a coupling position in which a first magnet of the magnet assembly is aligned with a reference point and a decoupling position in which the first magnet is misaligned with the reference point. In certain embodiments, the magnet assembly further includes a second magnet having an opposite polarity as the first magnet, and the second magnet is misaligned with the reference point when the magnet assembly is in the coupling position and is aligned with the reference point when the magnet assembly is in the decoupling position.

A latch dogging assembly comprises an electromagnet and an actuator mounted on a bracket. A guide slide is pivotally mounted on the bracket with a lead block coupled to the guide slide. A guide pin rides along an inner surface of the bracket causing the guide slide to pivot. A pawl is slidably engaged with the guide slide. A guide link includes a post. An armature is mounted to the panic bar and the post engages the pawl. When the actuator is energized to move the lead block, the pawl engages the post to pivot the armature and thereby cause the panic bar to move from the extended position to the depressed position. When the electromagnet is energized the armature is magnetically held preventing reverse pivoting of the guide link. A method for fully retracting a door latch is also provided.

A door lock has a bottom surface, a bottom surface, a wedge portion extending upward from the bottom surface, and a projection member secured to the bottom surface. The projection member has a plurality of spikes defined therein that extend from a first side of the projection member in a direction away from the bottom surface.

The invention relates to a motor vehicle lock comprising a locking mechanism provided with a rotary latch and at least one pawl, a rotary movement of the rotary latch can be blocked by means of the pawl, a drive device by means of which the pawl can be transferred from the locked position into a release position for the locking mechanism, and an adjusting device (9). A motor vehicle part (4) accommodating the vehicle lock can be moved from the closed position into an open position by means of the adjusting device (9). Said adjusting device (9) maintains the motor vehicle part (4) in the open position such that the motor vehicle part (4) can be prevented from opening automatically from the open position.