Abstract: Disclosed herein is a novel door apparatus of the type wherein one door rotates while moving horizontally to the right and left, becomes parallel to the sidewall of an entrance, thereby being opened fully, then reverses in the original direction while moving horizontally and is then closed. The door apparatus of the invention is most suitable for an entrance having a limited width or for the handicapped or those who use a wheel chair because they have difficulty in passing through conventional swing type doors.

Abstract: Disclosed is a novel door apparatus of the type wherein one door rotates while moving horizontally to the right and left, becomes parallel to the sidewall of an entrance, thereby being opened fully, then reverses in the original direction while moving horizontally and is then closed. The door apparatus of the invention is most suitable for an entrance having a limited width or for the handicapped or those who use a wheelchair because they have difficulty in passing through conventional swing type doors.

Abstract: This invention relates to a novel door apparatus of the type wherein one door rotates while moving horizontally to the righ or left when opened, and finally approaches to the sidewall of an entrance and becomes in parallel therewith. The door apparatus of the invention is particularly suitable for the handicapped or those who use a wheelchair and who have difficulty in passing smoothly through doors in general.