To facilitate installation work and improve angle adjusting precision of each link at the time of installation.
At the time of installing double doors 6a, 6b for an elevator, the doors are temporarily fixed in an totally closed state by providing means 25a, 25b to temporarily fix the cage side door, auxiliary links 8a, 8b are connected to the cage side door free to rotate, and the doors 6a, 6b are temporarily fixed by providing means 1a, 1b to temporarily fix a relative angle with the cage side door. Thereafter, main links 10a, 10b to connect the auxiliary links and a cage main body to each other are connected to each other so that their both ends are free to rotate, means 24a, 24b to temporarily fix a relative angle with the auxiliary links are provided and temporarily fixed, and a link 14 to connect the main links to drive both of the left and right doors to each other and the link 14 to connect one of the main links and a drive device to each other are installed. Additionally, a connecting point adjusting means 26 of the links to connect both of the main links by quantity equivalent to a difference of a moving distance is adjusted by making the cage side door in a totally opened state, checking a difference of moving distances of the left and right cage side doors, making the cage side door in the totally closed state again, and a link connecting point adjusting means 26 to connect both of the main links by quantity equivalent to the difference of the moving distances is adjusted.
FUKUYA TAKESHI
NAKAMURA ICHIRO
