PROBLEM TO BE SOLVED: To provide a light emitting device for a stick which requires no fear of strength and has a simple structure capable of making a user of the stick suitably recognizable.SOLUTION: In the light emitting device for a stick 20, a case 2 placed to the tip end side of a stick 20 and a rubber cover 9 in a condition covering the case 2 are set, while the upper face 2a of the case 2 is faced to the tip end face of the stick 20, and a projecting shaft 6 projecting upward is set and inserted into a shaft hole 21. A pair of piezoelectric elements 7 are placed faced to each other at a distance inside the case 2 and end parts of the piezoelectric elements 7 are supported by a support part 3 set to the sidewall side of the case 2. In a space area between the piezoelectric elements 7 in the case 2, a weight part 8 at least vertically movable corresponding to vibration applied from outside to collide against faces of the piezoelectric elements 7 is set. A light emitting diode 4 emitting light by electromotive force generated at the piezoelectric elements 7 when the weight part 8 collides against the piezoelectric elements 7 is placed on the case 2 and a light guide-out hole 5 for guiding the emitted light to outside is set on the rubber cover 9.COPYRIGHT: (C)2011,JPO&INPIT【課題】強度的な心配が不要で、杖の利用者を適切に認識させることができる簡単な構成の杖用発光装置を提供する。【解決手段】杖20の先端側に配置されるケース2と、ケース2を覆う態様のゴムカバー9とを設け、ケース20の上面2aを杖20の先端面に対向させ、ケース2の上面に、上側に突出する突起軸6を設けて杖20の軸孔21に挿入する。ケース2の内側には対を成す圧電素子7を互いに間隔を介して対向させて配置し、圧電素子7の端部をケース2の側壁側に設けた支持部3に支持する。ケース2内には圧電素子7同士の間隔領域に、外部から加えられる振動に応じ少なくとも上下に可動して圧電素子7の面に衝突する重り部8を設け、重り部8が圧電素子7に衝突したときに圧電素子7に生じる起電力によって発光する発光ダイオード7をケース2上に配置し、発した光を外部に導く光導出孔5をゴムカバー9に設ける。【選択図】図1
