JP2733373B

PURPOSE:To obtain a low-cost and hard-to-break structure by bending part of a copper plate which constitutes a case mainframe to form a key fitting portion, in which a key hole is provided for locking in keeping with a key hole in a die-cast fixture. CONSTITUTION:A slide switch 5 is dipped into and directly attached to a main printed board 4. A die-cast fixture 3 is inserted into the cutout portion 2c of of a case mainframe 2 and locked in keeping with the key fitting portion 2a formed by bending part of the copper plate of the case mainframe 2, a key hole 2b provided therein and a key hole 3a provided in the die-cast fixture 3. With the slide switch 5 directly attached, need for leads is eliminated. The die-cast fixture 3 which is simply inserted into the case mainframe 2 requires no screws. The stroke dimension of the knob of the slide switch 5 has no reference with key locking, and so common parts which are short in stroke dimension can be used. It is thus possible to obtain a low-cost and hard-to-break structure.