| 摘要 |
<p>A device for breaking glass, arranged to be mounted on a pane of glass, or other breakable substrate, and being actuatable to break the pane of glass or substrate. In one embodiment, the device comprises a base, a plunger moveable with respect to the base and a pin extending from and axially moveable with respect to the plunger, wherein the plunger is moveable with respect to the base from a retracted position to an extended position such that, in use, when the base is placed against a first pane of glass, a distal end of the pin strikes and breaks said first pane of glass, and wherein the pin is moveable with respect to the plunger from a retracted position to an extended position, with the plunger in its extended position, such that the distal end of the pin strikes and breaks a second pane of glass parallel to and spaced from the first pane of glass. Preferably said plunger is biased towards its extended position by a first biasing means and the pin is biased to its extended position by a second biasing means.</p> |
