JPH048590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application 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, other than roll-up types. The feature of the present invention in a nutshell is that the motor is disposed at a movable portion of the rotary lift door, rather than at a fixed portion.

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 for the motor so as to avoid increasing the volume occupied by conventional members as much as possible. .

Means and Embodiments for Solving the 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. Two pivot points 4
1, 42, and one end 21 at the two pivot points 41, 42.
two support arms 21, 22 which are pivotally supported by a, 22a and are rotatable in a plane intersecting the axis X;
and the open ends 21 of the two support arms 21, 22.
between b and 22b, the two support arms 21 and 22
A decorative panel (door) 1 installed across the direction intersecting the
In the rotating lift door including the second support arms 21 and 22 and the urging mechanism 61 and 62 that reduces the gravitational moment of the rotating part 5, including the door 1,
A motor 72 having a drive shaft 72a directed toward the shaft fulcrum 42 of the one end 22a is loaded in a housing 2c disposed near the one end 22a of at least one of the support arms 21, 22, A rotating body A (72
b) and a rotating body B (32) a such as a fixed gear whose axis of rotation is the axis The rotating body A,
The power transmission between B (72b, 32a) is configured such that the two support arms 21, 22 are configured only within a range of about 90 degrees from a substantially horizontal direction to a substantially vertical direction. ing.

Note that one end 21a, 2 of the support arms 21, 22
2a is divided into a plurality of blocks 22a1 and 22a2 as shown in FIG. 2 for convenience of incorporating the motor.
It is free to connect and integrate these later. In this case, it does not matter in which block the housing 22c is constructed. Further, the biasing mechanisms 61 and 62 are not limited to spring biasing as shown in the drawings, but may also include weights as a balancer. The motor 72 is not limited to being placed only on the support arm 22 side, but the motor 71 may be placed on the support arm 21 side to expect a synergistic effect. 31,
32 is a support for the ground surface S of the pivot points 41 and 42, and 2 and 1 of the second digit of each code number in this specification
indicates the left and right sides of the system, and some are not shown for the sake of clarity. The method of supplying power to the motor 72 may be by conventionally known technical means, such as loose stranded wire or a rail and collector brush method. Rotating bodies A, B (72b, 32)
The same can be said of the power transmission mechanism between a and a, and any known means such as a bevel gear or a worm gear can be applied.

Operation Since the present invention has the above configuration, when the motor 72 starts rotating by turning on a switch (not shown), the rotating bodies A and B (72b, 32)a engage with each other. A (72b) to the rotating body B (3
2a), but in reality, the rotating body B (32a) is fixed at a fixed position as an integral body with respect to the ground surface S, so as a result, the rotating body A72b It will begin to rotate relative to the ground surface S. When the support arms 21, 22 reach the horizontal direction (when the door is closed) or the vertical direction (when the door is opened), the rotation of the motor 72 is stopped by a known limit switch or the like, and the rotation is reversed by the next command. Do this and then repeat this. Biasing mechanism 6
1 and 62, the gravitational moment of the rotating portion 5 is set to a minimum in advance, so the rating of the motor 72 can also be made small. If the door is expected to be opened and closed manually at any time regardless of the operation of the prime mover, a torque limiter or the like may be interposed in the power transmission path of the motor 72. Regardless of the structure of the present invention, the fixed part of the rotating lift door (for example, the support body 32)
It is also possible to arrange the motor 72 above, but in this case obviously an extra volume is required for mounting the motor 72. In addition, in Fig. 1, the support body 3
1 and 32 are further fixedly engaged with rigid structures (such as columns and walls) from the ground surface, and as a result, the shaft supports 41 and 42 are supported in fixed positions with respect to the ground surface S. is omitted from the illustration.

Effects of the Invention According to the present invention, one end 22a of the support arm 22
The motor 72 can be housed in one end 22a of the support arm simply by making the shape slightly thicker (the diameter corresponds to a motor diameter of several tens of watts). Regardless of whether it is a manual rotary lift door), it can be made 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 drawings]

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. 3 is a main part along the support arm of FIG. FIG. 1... Decorative board (door), 21, 22... Support arm, 21a, 22a... One end, 21b, 22b...
...Open end, 22c...Housing, 31, 32...
...Support, 31a, 32a...Rotating body B, 41,
42... Axis fulcrum, 5... Rotating part, 61, 62...
Biasing mechanism, 71, 72...Motor, 71a, 72
a... Drive shaft, 71b, 72b... Rotating bodies A, X
...Axis, S...ground surface.

Claims (1)

[Claims] 1 A straight line in a horizontal plane is the axis of rotation, two fulcrums are arranged on the axis, one end is supported by the two fulcrums, and it is rotatable in a plane intersecting the above-mentioned axes. the second support arm, a decorative board installed between the open ends of the two support arms in a direction intersecting the two support arms, and the second support arm and the decorative board. In a rotary lift door comprising a biasing mechanism for reducing the gravitational moment of a rotating part, a drive shaft directed toward the shaft fulcrum of the one end is disposed in a housing disposed near the one end of at least one of the support arms. A rotary body A integrated with the drive shaft is engaged with a rotary body B such as a fixed gear having the shaft as an axis of rotation so as to transmit power, and the rotary body B is connected to the ground surface. The rotating bodies A and B are fixed to each other so that they are integral with each other, and the power transmission between the rotating bodies A and B is performed only within a range of approximately 90 degrees from the approximately horizontal direction to the approximately vertical direction of the two supporting arms. An electric rotating lift door that is characterized by: