초록 ▼

A damper device comprises damping structure and a spring device and is advantageously used for a door swingably supported by a shaft to be opened and shut between a totally shut position and a totally opened position and opened under the influence of its own weight at least from a position intermedi

A damper device comprises damping structure and a spring device and is advantageously used for a door swingably supported by a shaft to be opened and shut between a totally shut position and a totally opened position and opened under the influence of its own weight at least from a position intermediate of the aforementioned two positions to the totally opened state. The damper element acts against the motion of the door. The spring element biases the door in the shutting direction at least from the intermediate position to the totally opened position.

대표청구항 ▼

A damper system for a door means which is movable between a closed position and an open position, and which passes through an intermediate position defined between said open and closed positions wherein said door means is opened under the influence of its own weight, during movement from said closed

A damper system for a door means which is movable between a closed position and an open position, and which passes through an intermediate position defined between said open and closed positions wherein said door means is opened under the influence of its own weight, during movement from said closed position to said open position, at least from said intermediate position to said open position, comprising: damping means operatively connected to said door means for damping movement of said door means in either direction between said open and closed positions; and spring means operatively connected to said door means for biasing said door means toward said closed position when said door means is disposed at a position between said intermediate position and said open position, and for biasing said door means toward said open position when said door means is disposed at a position between said intermediate position and said closed position.