PROBLEM TO BE SOLVED: To provide a call button device capable of calling a nurse by a simple operation by retaining a stable state, with it placed on a bed and without being held in the hand.SOLUTION: A button part 1 to be depressed is formed into a palm size and stored in a button case 2 formed into a disk-like shape and having a substantially flat back face. The button part 1 includes a switch part 3 at the back part thereof, while the button case 2 includes a holding frame 13 that position-changeably locks a support substrate 11 for clamping a coil spring 17 between itself and the button part 1, at the bottom part of a base 2b thereof. The base 2b is openingly formed with a window 12 for operating the support substrate 11.COPYRIGHT: (C)2014,JPO&INPIT【課題】 ベッド上に置いた状態で握ることをしなくても、安定した状態を維持して簡易な操作で呼び出しできる呼び出しボタン装置を提供する。【解決手段】 押下操作するボタン部1が掌サイズで形成されて、円盤状に形成されて略平坦な背面を有するボタンケース2に収容され、ボタン部1の背部にスイッチ部3を配置する一方、ボタンケース2の基台2b底部に、ボタン部1との間でコイルバネ17を挟持する支持基板11を位置変更可能に係止する保持枠13を設け、基台2bに支持基板11を操作するための窓12を開口形成した。【選択図】 図8