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A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
This design ensures the child lock remains in position, preventing passengers from changing the lock position when the door is open. Once the door is closed, control of these two mechanical type child locks is completely inaccessible to passengers. Starting in 1999, [6] manufacturers began using electronic child locks activated from the driver ...
Door chains — allows the doors to be opened slightly to view outside while still remaining locked. Secondary, internal locks — sliding bolts, hooks and speciality latches, metal blocks or bars mounted internally. Hinge screws — longer or specialized screws that prevent the door from being simply pulled out after removing the hinge pins ...
Many playpens are portable, making them an alternative when the parent and child are visiting a home that has not been "childproofed". Safety gates are used to help prevent a child from accessing an area of a house, especially the stairway, or to allow an exterior door to be open for ventilation while restricting movement of a child. Pressure ...
Door guards protect fingers in door hinges by covering the hinge-side gap of an open door, typically with a piece of rubber or plastic that wraps from the door frame to the door. Other door safety products eject the fingers from the push side of the door as it closes.
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To prevent access to the inside of an electric kiln, a trapped key system may be used to interlock a disconnecting switch and the kiln door. While the switch is turned on, the key is held by the interlock attached to the disconnecting switch. To open the kiln door, the switch is first opened, which releases the key.
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