초록 ▼

A holding installation with an integrated closing sequence regulation is described for double doors comprising a leading door which is the first to close and a trailing door which then closes. The hydraulic door closer associated with the trailing door is provided with a signal generating device whi

A holding installation with an integrated closing sequence regulation is described for double doors comprising a leading door which is the first to close and a trailing door which then closes. The hydraulic door closer associated with the trailing door is provided with a signal generating device which is actuated in dependence on the piston position, and with an additional return flow passage for hydraulic fluid. The signal generating device controls the solenoid valve which holds the leading door by preventing the movement of hydraulic fluid contained in the door closer for the leading door, thus preventing movement of the associated piston.

대표청구항 ▼

A door holding and closing installation for double doors comprising a leading door which is the first to close and a trailing door which then closes, the installation including: a first electro-hydraulic door closer for said leading door, for moving said leading door into a closed position, said fir

A door holding and closing installation for double doors comprising a leading door which is the first to close and a trailing door which then closes, the installation including: a first electro-hydraulic door closer for said leading door, for moving said leading door into a closed position, said first door closer including a first electrically actuated holding device for holding said leading door in a selected open position; a second electro-hydraulic door closer for said trailing door, for moving said trailing door into a closed position, said second door closer including a second electrically actuated holding device for holding said trailing door in a selected open position, said second holding device being capable of being manually overridden by pushing said trailing door in the closing direction; blocking means associated with said second door closer and actuated in dependence on a position of said leading door for blocking the closing movement of the trailing door over a part only of its range of movement, said blocking means ensuring closing sequence control and said part of said range of movement starting from said closed position of said trailing door; and switch means associated with said second door closer, said switch means being actuated at a selected angle of opening of said trailing door to release said first electrically actuated holding device whereby said leading door closes and frees said blocking means to permit closing of said trailing door.