PROBLEM TO BE SOLVED: To provide a safe mastication instrument which is structured more simply than conventional ones, which allows mastication motion with well balance and with less stress, and which can reduce the possibility of accidental ingestion.SOLUTION: A thick chewing part 40 of an elastic body is formed at the tip of an arm part of a substantially U-shaped body 11 comprising both side arm parts 20 and a connection part 30, the length of the arm part or the length of the connection part is configured adjustable, the thick chewing part is made of a synthetic resin tube 41 attached loosely to the arm part and the arm parts are integrally formed with the connection part with L-shaped members 50 which are shaped in L and fitted with an intermediate cylinder instrument 60 in a mastication instrument 10.COPYRIGHT: (C)2015,JPO&INPIT【課題】従来に比して簡易な構成でバランス良くストレスの少ない咀嚼運動を行うことができ、誤飲の可能性の少ない安全な咀嚼用器具を提供する。【解決手段】両側のアーム部20及び連結部30よりなる略U字状本体11のアーム部の先端に弾性体からなる厚噛部40を形成し、アーム部の長さ又は連結部の長さが調節可能に構成されて、厚噛部がアーム部の緩着された合成樹脂チューブ41よりなり、アーム部に連結部がL字状に形成されたL字部材50に一体に形成され中間筒部材60により嵌着されている咀嚼用器具10。【選択図】図1
