PROBLEM TO BE SOLVED: To provide a gradient type power generating device capable of efficiently generating power.SOLUTION: A gradient type power generating device comprises: a tubular member 1 having a hollow part 1c a permanent magnet 2 provided in the hollow part 1c and movable in the tubular member 1 and a coil 3 wound around a side face of the tubular member 1. When the permanent magnet 2 moves in the tubular member 1, the power is generated by electromagnetic induction generated between the coil 3 and the permanent magnet 2. A trap portion may be provided which restrains movement of the permanent magnet 2 in the tubular member 1 until an inclined amount of the tubular member 1 exceeds a predetermined amount. A magnet moves in the hollow portion in the tubular member, and smoothly passes through a portion around which the coil is wound, and therefore, the power can be generated efficiently. Also, since the trap portion is provided, a passing speed can be made high in the portion around which the coil is wound, and therefore, the power can be generated efficiently.COPYRIGHT: (C)2013,JPO&INPIT【課題】発電を効率良く行うことのできる勾配型発電装置を提供する。【解決手段】中空部1cを有する管状部材1と、この中空部1c内に設けられ、かつ、該管状部材1内を移動可能な永久磁石2と、管状部材1の側面に巻き付けられたコイル3と、を備え、永久磁石2が管状部材1内を移動する際にコイル3と永久磁石2との間で生じる電磁誘導によって発電する。管状部材1の傾き量が所定量を超えるまで、管状部材1内における永久磁石2の移動を抑止するトラップ部を設けても良い。管状部材内の中空部を磁石が移動することにより、コイルが巻き付けられている部分を磁石がスムーズに通過するため、発電を効率良く行うことができる。また、トラップ部を設けることにより、コイルが巻き付けられている部分の通過速度を高めることができ、発電を効率良く行うことができる。【選択図】図4
