JPS62164990A - Revolving 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 Field of Industrial Application The present invention is applied to external gates for buildings, particularly garage doors.

Conventional technology The opening/closing movement of a rotating lift door is a rotational movement of a rotating part such as a decorative panel (door) or a support arm about an axis X connecting two pivot points. On the other hand, if a biasing member moving on a straight line whose relative position is immovable is used to force rotation, a piston with a connecting rod, a rack and pinion, or a winding means using a strip with extremely low bending stress is usually used. ing. However, all of these require separate parts such as connecting rods, pinions, and chains, and the engagement points for each require additional friction, making them relatively expensive when you include the parts and process costs.

Problems to be Solved by the Invention The present invention aims to improve the above-mentioned difficulties and reduce the number of parts and assembly man-hours.

Means and Embodiments for Solving 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 fulcrums 41 and 42 are arranged on the axis It consists of two support arms 21 and 22, and a decorative panel (door) l installed between the open ends of the two support arms 21 and 22 in a direction intersecting the two support arms 21 and 22. In the rotating lift door, a spring 6 is provided in at least one of the support arms 22.
2 is fitted, and one working end 62b of the spring is a member integral with the rotating part of the support arm 22, the door 1, etc., while the other working end 62a of the spring 62 is connected to the support arm 22, the door 1, etc. Slider 72 that is slidably restrained only in the longitudinal direction of
, and the slider 72 is simultaneously restrained and slid along the direction of the guide side 52 which is arranged in an immovable position relative to the ground surface S. It becomes. In addition, a stopper is separately provided to limit the rotation stroke of the support arms 21 and 22 to a range of approximately 90 degrees from the approximately horizontal direction (when 11 is closed) to the approximately vertical direction (when door 1 is opened). Although it is provided, it is not shown for the sake of clarity. Further, 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. In the embodiment, the guide side 52 is exemplified as a slit of a tongue that is integrated with the ground surface S via the pivot point 42 and the support 32 of the pivot point 42, and when the ML is closed, the guide side (slit) 52 is set in a direction of slightly less than 90 degrees with the support arm 22, and when the door 1 is opened, this intersecting angle expands to a direction of slightly less than 1806 degrees (a compression spring is used as the biasing spring 62). Related.

) Function Since the present invention has the above configuration, the support arm 22
is horizontal (when 11 is closed), the guide side 52 is connected to the support arm 2
The slider 72, which is substantially orthogonal to the shaft 2 and is restrained and slid by the guide side 52 and the support arm 22 at the same time, is located closest to the pivot point 42. At the same time, the slider 72 is at the closest position to the spring 62, and the spring 62 is receiving the maximum compressive force. In other words, when the door l is closed, the rotating part K counteracts the strong gravitational moment exerted on the pivot point 42. When the door 1 is opened, the slider 62 is at the farthest position from the pivot point 42, and at the same time the spring 62
The biasing force of is the most developed cane state (minimum biasing force). In other words, as the gravitational moment of the rotating part (■) decreases when the door is opened, the antagonistic moment also decreases, so the weight on the rotating part is ignored throughout the entire rotation stroke. This makes it possible to open and close the door 1 with a small operating force.If the arrangement of the guide side 52 is changed, a tension spring can of course be used as the spring 62.

Effects of the Invention According to the present invention, the operating angle of the rotating portion I happens to be approximately 90 degrees.
Utilizing the operating characteristics of the rotating lift door, which is less than 100°, linear motion can be converted into rotary motion in the simplest form. This is because the slider 72 is not required as a separate member from the spring 62, but the slider 72 can essentially be seen as a specially deformed tip shape integral with the spring 62. As described above, according to the present invention, it is possible to obtain a rotating elevator door that is easy to assemble and saves material costs.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the essential parts of an embodiment of the rotating lift door according to the present invention, Fig. 2 is a side sectional view of the vicinity of the slider in Fig. 1, and the chain line indicates the support arm of the guide side when the door is opened. The relative positions are shown, and FIG. 3 is a sectional view taken along the line AA in FIG. 2. 1... Decorative board (door) 22, 22-Number, support arm 21a, 22aΦ...one end 41, 42... shaft fulcrum 51, 52...・Conflict...Guide edges 61, 62...Springs 71, 72 ・◆Q-φ Slider K...Rotating part S...・Number・Ground X・・・・・・・・・Axis

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. between two support arms that are rotatable in a plane and open ends of the two support arms;
In a rotary elevator door comprising a decorative plate extending across the two support arms, a spring is fitted into at least one of the support arms, and one active end of the spring is connected to the support arm, The other active end of the spring is attached to a member integral with the rotating part such as a decorative plate, while the other working end of the spring is attached to a slider that is slidably restrained only in the longitudinal direction of the support arm.
A rotary lift door characterized in that, while being engaged with each other, the slides are simultaneously restrained and slid along the direction of a guide side that is disposed in an immovable position relative to the ground surface.