SEALING DEVICE

To provide a sealing device which enables pressure equalization on both holding surfaces and enables maintenance of the holding strength over the whole longitudinal direction of both holding parts even the holding parts undergo a deflection regardless of the parallelism accuracy of the holding surfaces, needing no compressed fluid supplying device to match movements of holding parts, no discharging device or no silicon tube flexible hollow body.SOLUTION: A sealing device 1 comprises: a pressing part 2 for clamping sealed item, and box-like receiving part 5; a heating part arranged in the pressing part 2; and a tube-shape body 6 with gas or liquid sealed inside, which is stored in a storing part 51 of the box-like receiving part 5, arranged in a position to face the heating part.SELECTED DRAWING: Figure 2A 【課題】挟持部の動作に合せた圧縮流体の供給装置、排出装置、シリコーンチューブ製などの可とう性中空体を必要としなくても、挟持面の平行度の精度にかかわらず挟持部が撓んでも、両挟持部の長手方向の全範囲にわたって挟持力を維持でき、両挟持面全体を均圧にできる、シール装置を提供する。【解決手段】シール装置１は、被シール物を挟持するため押圧部２および箱状受部５と、前記押圧部２に設けられる加熱部と、前記箱状受部５の収納部５１に収納され、前記加熱部と対向する位置に配置され、および気体または液体が密封されているチューブ状体６とを備える。【選択図】図２Ａ