JPS6250585A - Flexible arm rotary lifting/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 Field of the Invention The present invention relates to external gates for buildings, particularly garage doors.

Conventional rotating elevator doors are known from Japanese Patent Application Laid-Open No. 60-88773, but the storage space for the spring for reducing the gravity of the rotating part is relatively large, which has traditionally been an obstacle to loading and unloading cars. This was a problem in terms of appearance.

The problem to be solved by the present invention is to uniformize the volume of the members near the supporting points of the pillars and rotating parts of the conventional rotary lift door, thereby making the door slender.

Means and Embodiments for Solving the Problems The structure of an embodiment of the flexible arm rotating lift door according to the present invention will be described with reference to a drawing. Support ≠-=k 31, 32 and the second support 31, 32
two support arms 21 and 22 that are orthogonal to the line segment connecting the tops 31a and 32a and are freely movable within a plane that includes each of the two support columns 31 and 32; One end 21a, 22a and the second support 31, 32
a second caterpillar unit 41, 41, 42 unit 42 that links the top portions 31a, 32a of the caterpillar unit 42;
Locking portions 51 and 52 arranged on the units 41 and 42 and regulating the mutual rotation angles of the caterpillar units 41 and 42 and 42, and each of the support arms 21 and 22 and each caterpillar. - A spring 61 engaged between the units 41, 41, 42, 42 and biasing the support arms 21, 22 and each caterpillar unit 41-41, 42, 42 always in the anti-gravitational direction. 62, and a decorative plate (g) 1 installed on the open ends 21b and 22b of the second support arms 21 and 22 in a direction intersecting the support arms 21 and 22. The structure is as follows.

Note that the second digit of the code number used in this specification is 2.
・1 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.

Function Since the present invention has the above structure, by appropriately limiting the rotation angle of the adjacent caterpillar units 41, 41 (42, 42), the support arms 21, 22 can be moved from vertically upward to horizontally. Rotation can be limited within a range of 1890° in the direction. When the support arms 21 and 22 are vertically upward, the door 1 is open, and when the support arms 21 and 22 are horizontal, the door 1 is closed. Regarding the biasing force of the springs 61 and 62, the maximum value is set to be approximately equal to the gravitational moment exerted by the rotating parts such as 11 and the support arms 21 and 22 when the door is closed, and some biasing force is preserved even at the minimum value. By doing so, the operating force for opening and closing the door can be made extremely light throughout the entire process of opening and closing the door. In addition, caterpillar units 41 and 42
The number of springs 61 and 62 may be set at - or three, and the springs 61 and 62 may also be provided with multiple springs instead of one, or torsion springs instead of bullets. This is simply a technical matter related to design changes.

Effects of the Invention According to the present invention, one end 21a of the support arms 21, 22
22a and the pillars 31 and 32 are not a single shaft support as in the conventional case, the axis of the moment due to the biasing force of the springs 61 and 62 can be dispersed, and the amount of rotational displacement of each individual can be dispersed. As a result, the structure of the springs 61 and 62 around each shaft fulcrum becomes compact and simple, which has the advantage of making the appearance of the product slim.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the flexible arm rotating lift door according to the present invention, and Fig. 2 is the caterpillar of Fig. 1.
... Decorative board Cry> 21, 22... Support arms 21a, 22a... One end 21b, 22b... Open end 31-32...・52
...Locking parts 61, 62...Spring

Claims (1)

[Scope of Claims] Two pillars planted vertically on the ground surface in proportion to the width of the frontage, and a plane perpendicular to a line connecting the tops of the two pillars and including each of the two pillars. two support arms that are freely movable; one or more caterpillar (registered trademark) units that link one end of the two support arms and the top of the second pillar; and a caterpillar unit disposed on the caterpillar unit. and a locking portion that restricts mutual rotation angles of the caterpillar units, and is engaged between each of the support arms and each of the caterpillar units, so that the support arms and each of the caterpillar units are always in the anti-gravity direction. A flexible arm comprising one or more springs that bias the two support arms as shown in FIG. Rotating lift door.