Patent ID: 8390463

Claim:
A bracelet ( 100 ) for use on a wrist during escape in the event of fire, comprising a housing ( 110 ) attached to a strap ( 120 ) comprising a first and second part which can be moved relative to each other, thereby enabling the circumference of the strap ( 120 ) to be adjusted, and where the housing ( 110 ) is pressed against the wrist when the strap ( 120 ) is tightened, and where the housing ( 110 ) comprises a power supply and control electronics for controlling a sound and light signal warning, and where the bracelet ( 100 ) further comprises a device in the housing ( 110 ) connected to the control electronics for detecting a status as to whether the bracelet ( 100 ) is in motion or not, and means for controlling transmission of sound and light on the basis of the detected status, and where the bracelet ( 100 ) is characterised in that it further comprises an attachment mechanism for the strap ( 120 ) to the housing ( 110 ) comprising means for activating the control electronics in the bracelet ( 100 ) when the strap ( 120 ) is tightened round the wrist, as well as for deactivating the control electronics in the bracelet ( 100 ) when the strap ( 120 ) is slackened off again, and where this is made possible by the said attachment mechanism for the strap ( 120 ) comprising a first and second attachment mechanism on opposite sides of the housing ( 110 ), where one end of the strap ( 120 ) is fastened in the said first attachment mechanism by means of a fastening device ( 215 ), and where the other end of the strap ( 120 ) is attached to a holding device ( 210 ) which is attached to an upper end of a spring mechanism ( 200 ) located in a pocket ( 205 ) in the housing ( 110 ), where the lower end of the spring mechanism ( 200 ) is fastened to the housing ( 110 ), while the upper end can move freely in a linear movement in the pocket ( 205 ), and where the spring mechanism ( 200 ) is compressed when the strap ( 120 ) is tightened round the wrist, with the result that contact is established in a switch ( 220 ) located in the housing ( 110 ), and where the switch ( 220 ) is connected to the said control electronics, thereby causing the bracelet ( 100 ) to be activated.