Patent ID: 6655692
Filing Date: 2003-12-02
Classification: F16J

Abstract:
A brush seal device comprising:a holding portion of which one end portion is held by one of two parts that move relative to each other and of which the other end portion is opposed to and spaced from the other part; a brush that is formed of a plurality of bristles disposed in a mural manner and that has a mounting portion and a free end portion, the mounting portion being located on one end side of the brush in parallel with the holding portion and secured thereto and the free end portion protruding from the holding portion and being opposed to the other part; an elastic portion that holds the brush in parallel with the holding portion, and wherein: the holding portion has a back plate and a side plate that are disposed in parallel with each other, the brush is disposed between the back plate and the side plate, the brush is held on the side of its free end portion by the back plate due to the elastic portion attached to the side plate, the elastic portion has an annular shape in order to seal between the brush and the side plate, and the elastic portion is made from an elastic material and formed into one of an O-ring shape and a hollow cross-sectional area shape.