NOVELTY - The structure has a gasket arranged between two sealed subject surfaces, where the gasket includes a set of segments. Recesses (115c, 412, 421) are arranged in one of the two sealed subject surfaces at an encircled portion (A) corresponding to clearance (Sa) i.e. gap, between the adjacent segments. A seal (SP) is filled in the recesses and deformed in conformance with closed tetragonal shape of the clearance between the segments. The segments are arranged in a non-overlapping manner, and the gasket includes a separated portion arranged between the segments.    USE - Structure for sealing a space between an upper case i.e. upper flange, and a lower case i.e. lower flange, of a box-shaped/closed shaped battery container accommodating a rechargeable battery of a battery pack (claimed) that serves as a power supply unit for an electric motor of an electric/hybrid vehicle i.e. lorry. Can also be used for sealing a body and a lid of a case accommodating an electronic device i.e. hard disk drive.    ADVANTAGE - The gasket is formed by separate segments, and the seal is formed in separated portions of the gasket when sealing the space between the lower flange and the upper flange, thus maintaining high sealing performance with the gasket and improving material yield in an effective manner. The segments of the gasket are supported by the seal and the upper flange arranged in the non-overlapping manner so as to eliminate need of fasteners to couple the segments, thus allowing the segments to be in simple shape, and hence improving productivity of the segments, facilitating coupling of the gasket to the battery pack and improving productivity of the battery pack. The battery pack is arranged in the vehicle frame that ensures rigidity of the battery container. The recesses are formed in the lower flange, thus preventing distortion and preventing the seal from producing ridges and valleys in the gasket even though the seal is arranged between the lower flange and the upper flange to seal the clearance, and hence eliminating the gap from the separated portions of the gasket.    DESCRIPTION OF DRAWING(S) - The drawing shows a plan view of a seal structure.    Encircled portion (A)    Clearance (Sa)    Seal (SP)    Recesses (115c, 412, 421)    Projections (411, 413, 422, 423)