| 摘要 |
PURPOSE: A door interlinking unit and a door interlocking apparatus including the same are provided to stably connect three or more doors. CONSTITUTION: An interlinking unit(140) comprises a first rack gear(141), a first pinion gear(142), a second rack gear(143), a third rack gear(144), a second pinion gear(145), and a fourth rack gear(146). The first rack gear is arranged on the upper part of a first door with a first height towards a second door. The first pinion gear is geared with the first rack gear by being arranged on the upper part of the second door with the first height. The second rack gear is geared with the first pinion gear by being arranged on the upper part of a third door with the first height towards the second door. The third rack gear is arranged on the upper part of the second door with a second height towards the third door. The second pinion gear is geared with the third rack gear by being arranged on the upper part of the third door with the second height. The fourth rack gear is geared with the second pinion gear by being arranged on an upper plate with the second height towards the third door.
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