PROBLEM TO BE SOLVED: To provide a heating instrument having a compact heating head 2.SOLUTION: A heating head 2 includes a heating unit 20, and a heat source 22 for heating the heating unit 20. The heat source 22 is constituted of a planar heating element. The heat source 22 is constituted of the planar heating element including a heat generation part 53 and terminal parts 54, 54 respectively provided to both ends of the heat generation part 53. The heat generation part 53 includes a pair of bend parts 55, 55 formed in a winding shape, and a connection part 56 for connecting one end each of both bend parts 55, 55 with each other. The cross section of the bend part 55 and the connection part 56 is roughly rectangular. The terminal part 54 is formed in a plate shape wider than the bend part 55 and the connection part 56.COPYRIGHT: (C)2013,JPO&INPIT【課題】コンパクトな加熱ヘッド2を有する温熱器具を提供する。【解決手段】加熱ヘッド2は、加熱体20と、加熱体20を加熱する熱源22とを含む。熱源22が、板状の発熱体で構成してある。熱源22は、発熱部53と、発熱部53の両端にそれぞれ設けた端子部54・54とを備える板状の発熱体で構成してある。発熱部53は、つづら折り状に形成した一対の屈曲部55・55と、両屈曲部55・55の一端どうしを繋ぐ接続部56とを備えている。屈曲部55および接続部56の断面が略矩形状である。端子部54は、屈曲部55および接続部56よりも幅広の平板状に形成してある。【選択図】図1