PROBLEM TO BE SOLVED: To provide an ampoule made of a resin which prevents a rupture opening at the time of circulation from occurring by increasing the rigidity of a recess section, and which can easily be unsealed at the time of use.SOLUTION: This ampoule made of the resin has a peripheral wall 2 which surrounds the axis O, and the annular recess section 4 which is formed over the total periphery of the peripheral wall 2 partitions the peripheral wall 2 into a head section 2a and a barrel section 2b. By breaking the recess section 4, a spout A is formed on the upper end of the barrel section 2b. On the recess section 4, at least one flat plate piece 6 which radially projects from the recess section 4 on a plane perpendicularly crossing the axis O, and integrally connects the head section side end surface 4a with the barrel section side end surface 4b is installed.COPYRIGHT: (C)2010,JPO&INPIT【課題】凹部の剛性を高めることで、流通時の破断開口を防止し、使用時には容易に開封できる樹脂製アンプルを提供する。【解決手段】本発明のアンプルは、軸線Oを取り囲む周壁2を有し、この周壁2の全周に亘って形成した環状の凹部4が当該周壁2を頭部2aと胴部2bとに区画し、この凹部4を破断することで、胴部2bの上端に注出口Aが形作られる。凹部4には、この凹部4から軸線Oを直交する面上を放射状に突出し、その頭部側端面4a及び胴部側端面4bを一体に連結する、少なくとも1つの扁平なプレート片6が設けられている。【選択図】図1
