Rotary-type door apparatus having two engagement portions for manual or automatic driving

A rotary-type door apparatus which includes a driving mechanism, said rotary-type door apparatus comprising:

• a rotary-type door;
• and
• a support shaft fixed to the rotary-type door and having a free end part formed with a first engagement portion and a second engagement portion, said free end part being formed in a generally tubular shape, said first engagement portion being formed on an outer peripheral surface of a longitudinal end of said free end part, said second engagement portion being formed on an inner peripheral surface of said longitudinal end of said free end part, said free end part being formed with an outside flat face at only a part of said outer peripheral surface of said tubular shape, wherein:
• said driving mechanism is attached to only one of said first engagement portion and said second engagement portion, said driving mechanism including a manually-driven lever having an opening formed into a shape corresponding to said outside flat face of said free end part, said outside flat face of said free end part being fitted into said opening of said manually-driven lever, said outside flat face of said free end part determining a fitting position of said manually-driven lever in a circumferential direction;
• said free end part being formed with a recess on said outside flat face;
• and
• said manually-driven lever including an engagement member for engagement with said recess thereby preventing said lever from disengaging from said support shaft in an axial direction of said support shaft.

A rotary-type door apparatus comprising:

• a rotary-type door;
• a tubular support shaft fixed to the rotary-type door, the tubular support shaft having an outer surface and an inner surface;
• a first engagement portion formed on the outer surface of the tubular support shaft, the first engagement portion including a flat face and a recess formed on the flat face;
• a second engagement portion formed on the inner surface of the tubular support shaft;
• a lever formed with an opening which corresponds to a radially outside peripheral shape of the outer surface of the tubular support shaft, the lever being fixedly fitted on the tubular support shaft so that the flat face determines a fitting position of the lever in a circumferential direction, the lever including an engagement member for engagement with the recess to prevent the lever from disengaging from the tubular support shaft in an axial direction.

A rotary-type door apparatus comprising:

• a rotary-type door;
• a tubular support shaft fixed to the rotary-type door, the tubular support shaft having an outer surface and an inner surface;
• a first engagement portion formed on the outer surface of the tubular support shaft;
• a second engagement portion formed on the inner surface of the tubular support shaft, the second engagement portion including a flat face;
• an electrically-driven actuator having a rotary output shaft formed to have an outer surface with a radially outside peripheral shape which corresponds to a radially inside shape of the inner surface of the tubular support shaft, the rotary output shaft being fixedly fitted into the tubular support shaft so that the flat face determines a fitting position of the rotary output shaft in a circumferential direction;
• and
• a rib provided on one of the inner surface of the tubular support shaft and the outer surface of the rotary output shaft, the rib being tapered in an axial direction.

A rotary-type door apparatus which includes a driving mechanism, said rotary-type apparatus comprising:

• a rotary-type door;
• and
• a support shaft fixed to the rotary-type door and having a free end part formed with a first engagement portion and a second engagement portion, said free end part being formed in a generally tubular shape, said first engagement portion being formed on an outer peripheral surface of a longitudinal end of said free end part, said second engagement portion being formed on an inner peripheral surface of said longitudinal end of said free end part, wherein:
• said driving mechanism is attached to only one of said first engagement portion and said second engagement portion;
• said rotary output shaft has an outside flat face which corresponds to said inside flat face of said free end part;
• and
• ribs are provided on at least one of said inside flat face of said free end part and said outside flat face of said rotary output shaft and are tapered in an axial direction.