PROBLEM TO BE SOLVED: To provide packing for a hand inserting window that can further reduce an opening/closing sound of a hand inserting door, and an infant incubator provided with the packing.SOLUTION: Packing for a hand inserting window provided on a treatment door on a side of an infant incubating chamber, forming an inner peripheral edge of the hand inserting window that is opened and closed by a hand inserting door, is composed by integrally forming a seal piece 57 that abuts against the hand inserting door to an annular fitting part 56 provided in the inner peripheral edge of the hand inserting window. The seal piece 57 is formed in a thin-walled shape compared to the fitting part 56, and its inner peripheral surface is formed in a curved surface shape that gradually expands from the inner peripheral surface of the fitting part 56 to the tip direction. A sliding material coating layer 63 is formed at least on the inner peripheral surface of the seal piece 57.COPYRIGHT: (C)2014,JPO&INPIT【課題】手入れ扉の開閉音をさらに小さくすることができる手入れ窓用パッキン及びこのパッキンを備えた保育器を提供する。【解決手段】児収容室の側方の処置扉に設けられ、手入れ扉により開閉される手入れ窓の内周縁部を形成する手入れ窓用パッキンであって、手入れ窓の内周縁部に設けられる環状の取付部56に、手入れ扉に当接するシール片57が一体に形成されてなり、シール片57は、取付部56よりも薄肉状に形成されるとともに、その内周面が取付部56の内周面から先端方向に向かうにしたがって漸次拡がる曲面状に形成され、少なくともシール片56の内周面に滑り材コーティング層63が形成されている。【選択図】図2