METHOD OF ATTACHING BOBBIN TO ALARMING HORN AND ALARMING HORN USING THE SAME

摘要

PURPOSE: A method of attaching a bobbin to an alarming horn and an alarming horn using the method are provided, which does not require an additional yoke for attaching the bobbin to reduce costs and does not need to penetrate a hole for attaching the yoke to prevent water from going into the horn, to offer a horn with strong durability. CONSTITUTION: An alarming horn gives an alarm in such a manner that current is intermittently provided to a bobbin on which a coil is wound to make a pole fixed inside the bobbin be an electromagnet to intermittently pull an armature integrated with a diaphragm with the magnetic force generated in the pole to vibrate the diaphragm. The bobbin is attached to the body of the alarming horn in a manner that the pole is fixed to the body of the alarming horn, the pole penetrates the bobbin having a stepped portion inside, and a prominence caught by the stepped portion of the bobbin is formed at the upper portion of the pole.