JPS6183787A - Electromotive rotary lift 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 technology Manual rotary lift doors are already known in the market, but electric ones are rarely seen, except for the roll-up type. The feature of the present invention in a nutshell is that the electric motor is located in a movable part of the rotary elevator door, rather than in a fixed part.

Problems to be Solved by the Invention The problems to be solved by the present invention are to make the rotating lift door electric, and to configure the storage area of the electric motor so that the space occupied by the conventional part does not increase as much as possible. It is.

Means and Embodiments for Solving Problems The configuration of an embodiment of the electric rotating lift door according to the present invention will be described with reference to a drawing.The axis of rotation is a straight line X where a constant ground surface height and a vertical plane intersect, Two φIII arranged on the axis
The fulcrums 41 and 42, and one end 21 at the two shaft fulcrums 41 and 42.
The above-mentioned Decrease the gravitational moment of the rotating part 5 including the decorative plate (door) l installed in the direction intersecting the second support arms 21 and 22, the second support arms 21 and 22, and the fs1. In the rotating lift door consisting of biasing mechanisms 61 and 62,
In the housing 22c disposed near the one end 22a of at least = 22 of the support arms 21 and 22, an electric motor [72] having a drive shaft 72a directed toward the shaft fulcrum 42 of the one end 22a is loaded. A rotating body A (72b) that is integral with the shaft 72a and a rotating body B (32a) whose axis of rotation is the axis X are engaged so as to transmit power, and the rotating body B (32a) The two support arms 21 and 22 are set at a fixed position that cannot be rotated, and the power transmission between the rotating bodies A and B (72b and 32a) is such that the two support arms 21 and 22 The structure is characterized by the fact that it is carried out only within a certain range.

Note that one ends 21a and 22a of the support arms 21 and 22 are connected to a plurality of blocks 2 as shown in FIG.
It is free to have a configuration in which it is divided into 2al and 22a2, and later connected and integrated. In this case, it does not matter in which block the housing 22c is constructed. Further, the biasing forces 81t181 and 62 are not limited to spring biasing as shown in the drawings, but may also be based on a weight as a balancer. The electric motor 8172 is not limited to the support arm 22 side, but also the electric motor 71 on the support arm 2111.
It is also possible to expect a synergistic effect by arranging them. 31 and 32 may be formed by conventionally known technical means, such as a support for the shaft support points 41 and 42 on the ground surface S, or a method using a rail and a collector brush. The same applies to the power transmission mechanism between the rotating bodies A and B (72b and 32a), and any known means such as a bevel gear, a worm gear, and a bobbin and wrap transmission can be applied.

Operation Since the present invention has the above-described configuration, when the electric motor 72 starts rotating by turning on a switch (not shown), the rotating body A ( 72b), the rotating body B (32a) also starts rotating. However, in reality, the rotating body B (32a) is fixed at a fixed position with respect to the ground surface S, so as a result, the rotating body A
? 2b begins to rotate relative to the ground surface S. The support arms 21 and 22 can be moved horizontally (when the door is closed) or vertically (
When the door opens), the rotation of the electric motor 8!72 is known and the gravitational moment of the rotating part 5 is considered to be minimal, so the electric motor 8!
! The rating of 72 can also be small.

If the door is expected to be opened and closed manually at any time regardless of the operation of the electric motor, a torque limiter or the like may be interposed in the power transmission path of the electric motor 72. Regardless of the structure of the present invention, an additional occupied volume is required for the fixed portion of the rotating lift door (for example, the supporting bodies 31 and 32 in FIG. As a result, the shaft supports 41 and 42 are supported at fixed positions on the ground surface S, but the pillars and walls are not shown in the figure.

Effects of the Invention According to the present invention, the electric motor 72 can be housed within the one end 22a of the support arm 22 by simply configuring the shape of the one end 22a of the support arm 22 to be slightly thicker (a diameter corresponding to a motor diameter of several tens of W). Therefore, regardless of the presence or absence of the electric 8172 (regardless of whether it is an electric rotating lift door or a manual rotating lift door), it is possible to make it compact with almost no difference in appearance. It is clear that this is useful in terms of space utilization when used, for example, as a garage door.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of an embodiment of the electric rotating lift door according to the present invention, FIG. 2 is an exploded perspective view of the main part of FIG. 1, and FIG. It is a sectional view of the main part. l... Decorative board (door) 21, 22... Support arm, 21a, 22a... Tatami... One end 21b, 22b... Open end 22a opening... ···housing

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;
A rotary lift door consisting of a decorative board installed in a direction intersecting the second support arm, and a biasing mechanism that reduces the gravitational moment of the rotating part, including the second support arm and the decorative board. An electric motor having a drive shaft directed toward the shaft fulcrum of the one end is loaded in a housing disposed near the one end of at least one of the support arms, and a rotating body A integral with the drive shaft; A rotating body B having the above-mentioned shaft as its axis of rotation is engaged with the rotating body B so as to be capable of transmitting power, and the rotating body B is in a fixed position that cannot be rotated with respect to the ground surface, and the above-mentioned rotating bodies A and B
An electric rotary lift door characterized in that the power transmission between the two support arms is performed only within a range of about 90° from a substantially horizontal direction to a substantially vertical direction.