초록 ▼

A security device for movable objects such as a bicycle includes a lock box that is attached to the movable object, a locking chain that physically secures the lock box and movable object to an immovable object such as a bike rack, and an electric alarm circuit. The alarm circuit is armed by a lock

A security device for movable objects such as a bicycle includes a lock box that is attached to the movable object, a locking chain that physically secures the lock box and movable object to an immovable object such as a bike rack, and an electric alarm circuit. The alarm circuit is armed by a lock switch that closes the lock box and is set off by severing of the cable, which is an integral part of the alarm circuit. Alternatively, the cable and lock box include an optical conduction path which is sensitive to tampering and difficult to bypass.

대표청구항 ▼

A security device for locking a movable device such as a bicycle to an immovable object such as a post, comprising: a lock box comprising a pair of hinged members configured to cooperatively engage the movable object when closed; a cable mounted on a reel within the lock box and being extendible fro

A security device for locking a movable device such as a bicycle to an immovable object such as a post, comprising: a lock box comprising a pair of hinged members configured to cooperatively engage the movable object when closed; a cable mounted on a reel within the lock box and being extendible from the box about an object such as an immovable object and onto an electrical terminal mounted within the box for securing the box and the movable object to the immovable object; a locking switch for locking the box in the closed position and the cable onto the terminal; an alarm circuit means within the box and comprising an alarm circuit and an arming circuit and including the cable as an integral circuit path of said arming circuit, said alarm circuit including at least one of audible means and visual means activated by severing of the cable for providing an alarm signal; and wherein the locking switch is incorporated in and is part of the alarm circuit and the arming circuit for arming the alarm circuit upon closure and locking of the lock box. A security device for locking a first movable object such as a bicycle to a second object such as a post, comprising: (1) a lock box comprising a pair of hinged members configured to cooperatively engage the first object when closed; (2) a cable fixedly mounted at one end within the lock box and being adapted for detachable mounting at a second end onto a terminal mounted within the box for securing the box and the first object to the second object, said cable including mechanical strain-bearing means; (3) a locking switch for locking the box in the closed position and the cable onto the terminal; and (4) a locking and alarm circuit comprising: an alarm circuit means within the box and comprising an alarm circuit and an arming circuit and including the cable as an integral circuit path of said arming circuit, said alarm circuit including at least one of audible means and visual means activated by severing of the cable for providing an alarm signal; and wherein the locking switch is incorporated in and is part of the alarm circuit and the arming circuit for arming the alarm circuit upon closure and locking of the lock box; optical link means extending along said cable and having an optical inlet and outlet at said fixed end; a light source for applying light to said inlet; transistor means for operating said alarm means; and photodiode means communicating with said outlet responsive to the interruption of light transmission at said outlet for altering the on/off state of said transistor means to operate said alarm means.