JPS621291Y2 - - Google Patents

Description

[Detailed Description of the Invention] An object of the invention is to provide a rotary lift door with an improved support arm mechanism so as to make passage more convenient.

To describe the configuration of one embodiment of the rotary elevator door according to the present invention with reference to a drawing, there are two pillars 21 and 22 installed vertically on the ground surface S, and a shaft near the upper end of each of the two pillars 21 and 22. Two support arms 41, 42 having fulcrums 31, 32, extending in the horizontal direction, and rotatable in two parallel vertical planes, and open ends of the two support arms 41, 42, respectively. 41a,
42a, the decorative board 1 is provided between the support arms 41 and 42 in a plane intersecting with the two support arms 42a.
Bend part 41b of 41 into a crank shape (two-dot chain line)
The structure is characterized in that the part 41b of the support arm approaches the ground level S when the door is closed.

Since the present invention has the above configuration, when the door, that is, the decorative panel 1 is closed, the part 41b of the support arm is configured to be close to the ground surface S, as is clear from FIG. In the conventional support arm mechanism, the support arm 41 is located approximately at the waist of a person when the door is closed, so when a rotating lift door is constructed in a narrow space, it often obstructs passage (door This is especially true since the time it takes to close the door is usually longer than the time it takes to open it.) As is already clear, according to the present invention, when the door is closed, the part 41b of the support arm is in the same position as the ground surface, so even young children and the elderly can easily cross over the support arm 41b. .
The side view when the door is open is as shown in Figure 2, and there is still room A left for passage. In other words, ease of passage in the direction across the support arms 41 and 42 can be ensured both when the door is closed and when it is opened. According to the present invention, it is possible to expand the scope of construction of rotating lift doors to narrow spaces.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main part of a rotating lift door according to an embodiment of the present invention when the door is closed, and FIG. 2 is a side view of the main part when the door is opened. 1... Decorative board, 21, 22... Support, 31, 3
2... Axis fulcrum, 41, 42... Support arm, 41
b... Part of the support arm 41.

Claims (1)

[Scope of utility model registration request] A second support that is planted vertically on the ground surface, and a second support that has a pivot point near the upper end of the second support, extends horizontally, and is rotatable in two parallel vertical planes. between the arm and the open ends of the two support arms;
In a rotary lift door consisting of a decorative plate that straddles the above two support arms in a plane intersecting with each other, a part of the at least one support arm is bent into a crank shape, so that when the door is closed, the support arm A rotating lift door characterized by having a part close to ground level.