JPS62253893A - Shaft rising and falling rotary rising 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 external gates for buildings, particularly garage doors.

[Conventional technology]

As is known from Japanese Patent Publication No. 57-53507, rotating lift doors are usually equipped with springs to reduce the weight of rotating parts such as decorative panels (doors) and support arms.

A specific method for loading this spring is to stretch a flexible strip (a chain also has the same effect) with the spring, and use one end of the biased strip to move the support arm of the door in a direction that does not touch the ground. Proposals for rotational traction have also been made (patent application 1983).
-262053).

[Problem that the invention seeks to solve]

The present invention is a further improvement on the prior art, and provides a rotary lift door suitable for use in high-roof vehicles.

[Means and Embodiments for Solving the Problems] The configuration of an embodiment of the shaft-lifting and rotating lift door according to the present invention will be described with reference to a drawing. X, two shaft fulcrums 41 and 42 arranged on said axis Two support arms 21 and 22 that are freely movable and the two support arms 21 and 22
A decorative board (skin) 1 is installed between the open ends of the support arms 21 and 22 in a direction intersecting with the support arms 21 and 22, and two bracket pieces that respectively support the two shaft supports 41 and 42 on the ground surface. 31 and 32, the two bracket pieces 31 and 32 are restrained and slid so as to be movable only in the vertical direction with respect to the vertical ground structure S, and the bracket pieces 31 and 32 are at least −32 (31
) and the ground surface, a spring 62 (61) is indirectly interposed to bias the bracket piece 32 in a direction away from the ground surface.
A flexible strip 72 is stretched between the ground structure S and the spring 62, and the direction of the tension is the same as when the flexible strip 72 is pulled when viewed from the ground side. The structure is characterized in that the at least one support arm 22 is towed in a direction that is not close to the ground surface. It should be noted that stoppers for preventing rotation are provided at the upper and lower limits of the rotation of the support arms 21◆22, but these are not shown for the sake of clarity. Further, the second digit 2 and l used in this specification indicate the left and right sides of the support arm system, respectively, and although some are not shown, they appear the same as those of other systems.

[Effect]

Since the present invention has the above configuration, when rR1 rotates from the upper limit of rotation (when opening the door) to the direction of closing the door, the tension of the flexible strip 72 is increased; Since it has no malleability, the tension of the strip 72 is eventually absorbed in the form of strengthening the bias of the spring 62 against the reaction force of the spring 62. In other words, in the drawing, the bracket F32 is forced to descend, and the spring 62 is also compressed more. sleep 1
Although the door 1 exhibits a strong gravitational moment at the lower limit of rotation (when the door is closed), the biasing force of the spring 62 is also sufficiently strong, so it is possible to set the door to a balanced specification in advance in the design. Therefore, through the entire opening/closing process, *i
can be opened and closed. The biasing force of the spring 62 may be either tension or compression as long as it is in the direction of raising the pivot point 42, and may directly engage between the ground surface and the bracket 32, or indirectly through a new ground structure S. Even if the ground surface is energized, the construction is the same. Even when it comes to the method of engagement of chains and flexible strips, ground structures are considered to be integral with the ground surface. In addition, 31a and 32
A is a slide wheel pivotally attached to the brackets 31 and 32, and its operation is the same as described above.

(Effects of the Invention) According to the present invention, since the chain or flexible strip 62 is used, force can be transmitted using a minimum volume mechanism (in the case of FIG. 3, the vertical axis of the flexible strip 72 is particularly ), and as a result of the opening of the door 11, the pivot points 41 and 42 rise, making it possible to store cars with a higher vehicle height than before (high roof cars). If you simply want to increase the height of the itl when the door is opened, either ■ set the ground height of the shaft supports 41 and 42 higher, or ■ set the length of the support arms 21 and 22 longer. However, both pose problems. Namely,
The former (■) has the disadvantage that the residual gravitational moment shown by Ill when the door opens is too large to be ignored, and the latter (■)
Now, support arm 2 is also horizontal and long when the door is closed.
1.22, there are many opportunities to obstruct people's passage, but the present invention eliminates these drawbacks.

In particular, in the case of the embodiment shown in FIG. 3, by simply using the spring 62 (61) with a large displacement, it is possible to increase the amount of rise of the shaft supports 41 and 42 with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the main parts of an embodiment of the shaft-lifting/rotating door according to the present invention, FIG. 2 is a side view showing the internal structure of the first section, and FIG.
The figure is a side view of main parts of another embodiment. 1... Decorative board (door) 21, 22 Deluxe... φ, Support arm 21a middle 22a... One end 31, 32... Bracket 31a, 32a... Slide ring 41. 42-φ...Axial fulcrum

Claims (2)

[Claims] (1) 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 of the shaft is supported by the two shaft fulcrums. two support arms that are rotatable in a plane that intersects with the second support arm; a decorative plate that is installed between the open ends of the two support arms in a direction that intersects with the second support arm; In a rotary elevator door consisting of two bracket pieces each supporting a pivot point relative to the ground surface, the two bracket pieces are restrained and slid into vertical ground structure so as to be movable only in the vertical direction, and A spring is directly or indirectly interposed between at least one of the bracket pieces and the ground surface to bias the bracket piece in a direction away from the ground surface, while at least one of the support arms is connected to the ground surface or A chain or flexible strip is stretched between the ground structure and the above-mentioned spring, and the direction of the tension is when the chain or flexible strip is pulled as seen from the ground side. An axis-lifting rotary lift door characterized in that the at least one support arm is towed in a direction that does not touch the ground surface. (2) A first structure characterized in that a chain or a flexible strip is stretched between at least one of the support arms and the ground surface or a ground structure via a pulley pivotally connected to a bracket above the pivot point.
The axis-lifting/rotating lift door described in Section 1.