JPS61172986A - Rotary lifting 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 applications The present invention is applied to external gates for buildings, particularly garages.

The applicant of the present application has proposed a weighted flat tank type revolving lift door in Utility Application No. 108041/1982, but the present invention is based on the above-mentioned cited application, as well as a particularly new effect that has not yet been disclosed. This is an improvement.

Problems to be Solved by the Invention In the design of the cited application, the weight and the movement volume of the weight were relatively large, and the appearance was not desirable. The present invention solves this problem with a simple configuration, and also contributes to preventing serious injuries.

Means and Embodiments for Solving the Problems The configuration of an embodiment of the rotating lift door according to the present invention will be described with reference to a drawing. Two shaft supports 41 and 42 are arranged on the axis X, and one end 21a and 22a are supported by the two shaft supports 41 and 42,
Two support arms 21 and 22 are rotatable over a range of approximately 90° in a plane intersecting the axis
1 and 32, and the open end 2 of the second support arm 2l and 22.
1b-22b, a decorative panel (door) 1 installed across the two support arms 2I and 22, and a rotating portion 5 of the door 1 and the second support arms 21 and 22, etc. In a rotary lift door consisting of a weight W having a moment in the anti-gravitational direction that counteracts the gravitational moment shown with respect to the above-mentioned axis hollows 31a and 32a, and the hollows 31
The structure is characterized in that the weight W is slidably suspended within a.32a. In addition, P is a pulley and K is a steel cable, which limits the rotation stroke of the support arms 21 and 22 over a range of 90' from approximately horizontal to approximately vertical.
The stopper is not shown for clarity. In addition, the second digit 2 and 1 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. .

Operation Since the present invention has the above-described structure, the weight W moves into the hollow space -31a (32a) in the support column 31 (32) while being substantially balanced with the gravitational moment of the rotating part 50 throughout the entire opening and closing process of the door 1.
) or the outer peripheral surface of the support 31 (32) to move up and down,
Since the effects of gravity are canceled out, the operating force required to open and close the door can be minimized. Also, hollow pillars 31.3
2 can be easily obtained from a drawn shape, so the cost will not be high.

Other Embodiments Although it is economically desirable to use the columns 31 and 32 as the members on which the weight W slides and hangs, it is also possible to use an auxiliary column H attached to the columns 31 and 32. Moreover, the weights W may not be placed inside the columns 31 and 32, but may have a structure in which the weights W are made hollow and slide on the outer peripheral surfaces of the columns 31 and 32 (the second
Ward).

Effects of the Invention In the present invention, the weight W is enclosed in the partition walls of the columns 31 and 32, or has a structure in which it slides on the surface of the columns 31 and 32 (auxiliary column H), so the appearance is compact. Therefore, the weight does not swing significantly. Therefore, there is an advantage that the chances of serious injury are reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of one embodiment of a rotary lift door according to the present invention, and FIG. 2 is a perspective view of a main part of another embodiment. 1... Decorative board (door) 21, 22, φ...-Support arm 21a, 22a, φ... One end 21b, 22b... Open end 31, 32... ...Struts 31a, 32a, φ...Hollow 41, 42...φφ axis fulcrum X...Axis S...Ground surface H...・・・・・・Auxiliary pillar

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 that are rotatable over a range of approximately 90° in a plane, two pillars that support the two pivot points relative to the ground, and between the open ends of the two support arms, the above-mentioned A decorative board installed across the second support arm, and a moment in the anti-gravity direction that counteracts the gravitational moment exerted by the decorative board and rotating parts such as the second support arm with respect to the axis. A rotary lift door comprising a weight with a weight, characterized in that the weight is suspended in sliding contact with the above-mentioned two pillars or an auxiliary pillar planted on the ground parallel to the two pillars. .