PROBLEM TO BE SOLVED: To provide an information transmission device that is suitable for use in neuropathy examination, has a structure having no pin on a vibration surface, and is made to sufficiently ensure the mechanical strength between a vibration plate and the pin as a panel-like member.SOLUTION: An information transmission device 1 includes a substrate 3 with a shape memory alloy 2 (SMA) arranged thereto, and a vibration plate 4 being held to the substrate 3 in a floating state and vibrated by receiving the vibration of the shape memory alloy 2. The substrate 3 is attached to a device enclosure. The vibration plate 4 is arranged while facing the outside of the device enclosure and capable of coming in contact with a living body, has vibration pins 41 inserted into holes 31 provided in the substrate 3, and has the shape memory alloy 2 being built over the vibration pins 41. The whole vibration plate 4 is vibrated, and therefore has a structure having no pin on a vibration surface and can sufficiently ensure the mechanical strength between the vibration plate 4 and the vibration pin 41.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】情報伝達装置において、神経障害検査等に用いるに好適な、振動面にピンを有していない構造で、パネル状部材としての振動板とピンとの間の機械的強度を十分に確保できるようにする。【解決手段】情報伝達装置1は、形状記憶合金2(SMA)が配置された基板3と、基板3に浮動状態で保持され、形状記憶合金2の振動を受けて振動する振動板4と、を備える。基板3は、装置筐体に取り付けられる。振動板4は、装置筐体の外側に臨んで生体に接触し得る状態で配置され、基板3に設けられた孔31に挿入される振動ピン41を有し、振動ピン41に形状記憶合金2が架け渡されている。振動板4全体が振動されるので、振動面にピンを有していない構造で、振動板4と振動ピン41との間の機械的強度を十分に確保することが可能になる。【選択図】図1
