JPS62220689A - Rotary lifting and falling door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to exterior gates for buildings, particularly garage doors.

[Conventional technology]

Is the rotating lift door made by Tokuko Sho 57-5350? Both of them use special springs and weights to counteract the gravitational moment exerted by rotating parts such as decorative panels (doors) and support arms relative to the door's pivot point. ing.

[Problem that the invention seeks to solve]

The present invention does not require the installation of a spring or weight with such a special purpose, and has a configuration in which the functions of other members are combined with the - member, and the rotary lifting and lowering which apparently does not require a spring member is achieved. It is to provide a door.

[Means and Embodiments for Solving Problems] The structure of an embodiment of the rotating lift door according to the present invention will be described with reference to the drawings.
The straight line where the constant ground plane and the vertical plane intersect is the axis of rotation X, and the two shaft supports 41 and 42 arranged on the axis Two support arms 21 and 22 are supported pivotably and are rotatable in a plane intersecting the axis The support arms 21 and 22 are placed between the stoppers 51 and 52 that limit the width of the support arms 21 and 22, and the open ends of the two support arms 21 and 22.
In a rotary lift door consisting of a decorative board (door) l installed in a direction intersecting with , the two supports 31◆32, which respectively support the two shaft supports 41 and 42 on the ground surface, are applied with force, When viewed as a bench lever, the upper open end 3 of the column
The elastic displacement of 1a and 32a pulls the strips 71 and 72 wound around the ends 21a and 22a of the support arms 21 and 22, and the gravitational moment of the rotating parts such as the door 1 and the support arms 21 and 22 is applied. The structure is characterized by the fact that they are opposed to each other. Note that the second digit 2.1 used in this specification indicates the left and right sides of the support arm system, and although some are not shown, they appear the same as those of other systems.

Reference numerals 91 and 92 are springs for fine adjustment to compensate for excess or deficiency in the loads of the pillars 31 and 32 as cantilevers, and are not essential.

[Effect]

Since the present invention has the above configuration, when the door 1 is open, one end 21a, 22 of the support arms 21, 22
A is rotated to the maximum extent in the direction in which the strips 71 and 72 are unwound, and is stopped by contacting stoppers 51 and 52 for limiting the rotation stroke of the support arms 21 and 22. Support arm 2
A strip 71 wound around one end 21a and 22a of 1 and 22.
The free ends of the support arms 21 and 22 are close to the pillars 31 and 32 within the rotational plane of the support arms 21 and 22, and are tension-moored to the tops 81a and 82a of support rods 81 and 82 that are planted on the ground similar to the pillars. Stoppers 51 and 52 on the opening side are further biased in the direction of pressing against the opening side so that the door 1 does not turn to close due to its own weight or gust of wind. When the door 1 is rotated in the closing direction from this state, the strips 71 and 72 are attached to the support arms 21 and 22.
Since it is wound around one end 21a and 22a, the strip 71
- The free ends of 72 are sequentially drawn toward the ends 21a and 22a, and the shaft supports 41 and 42 and the top 81a of the support rod 81◆82
- The distance to 82a will become closer. In other words, the columns 31 and 32 and the support rods 81 and 82 bend in the direction toward each other, so when the door 1 is closed, the columns 31 and 32 undergo maximum displacement, which is caused by the rotational parts such as the door 1 and the support arm 21. If components are selected in advance to balance the maximum gravitational moment (the gravitational moment of the rotating part is approximately the maximum when the door is closed), the apparent gravity of the door 1 will be reduced, and the operating force for opening and closing the door will be reduced. It will be lighter. Support rod top 81a◆
When 82a comes into contact with the upper open ends 31a and 32a of the pillars (it is recommended to attach a protective cover C near the contact portions to prevent danger), the strips 71 and 72 cannot be wound any further. Therefore, the contact area between the support rod top parts 81a and 82a and the support upper open end 31aφ32a is the stopper 51-1.
52. Of course the support rod 81・
The presence of 82 is not essential, and the free ends of the strips 71 and 72 may be fixed to a rigid structure S integral with the ground surface, such as a side wall. In addition, since the configuration in which the door surface and the ground surface are replaced in FIG. 1 is a relative replacement, it is possible to use it multifunctionally while remaining within the technical scope of the present invention. As a result, assembly is simplified and expensive costs such as large load springs can be reduced, which is useful.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part of one embodiment of the rotary lift door according to the present invention, and FIG. 2 is a side view of another embodiment of the rotary lift door according to the present invention. 1...Decorative board (door) 21, 22◆φ...Support arm 21a, 22a◆...One end 31, 32 dispute, φ, Pillar 31a No. 32a, ◆, Upper open end 41◆42ΦΦ・・Fist axis fulcrum

Claims (1)

[Claims] The axis of rotation is a straight line that intersects a constant ground plane and a vertical plane, and two shaft fulcrums are arranged on the axis, and one end is pivotally supported by the two shaft fulcrums, and the shaft intersects with the above axis. Two support arms rotatable in a plane, a stopper that limits the rotation stroke of the support arms over a range of 90° from a substantially horizontal direction to a substantially vertical direction, and between the open ends of the two support arms. In a rotary lift door consisting of a decorative board installed in a direction crossing the support arm, if the two supports supporting the two shaft supports relative to the ground surface are each viewed as a cantilever, the support arms A rotary lift door characterized in that the strip wound around one end of the support arm is pulled by the elastic displacement of the upper open end of the door, thereby counteracting the gravitational moment of the rotating parts such as the decorative plate and the support arm. .