JPH01182492A - Motor-driven turning elevating door - Google Patents

Abstract

PURPOSE:To attempt expeditious response of projecting/retracting motion of a plunger by means of air static pressure as well as to avoid any hindrance on an electric power system due to sudden external force by interposing an elastic member in a power transmission route used for driving the swinging part of a door or the like. CONSTITUTION:An energizing member 61 which exhibits a reaction moment approximately equivalent to the weight moment of a swinging part K is engaged between the swinging part K consisting of a door 1 and support arms 21, 22 and stay 31, or 32, for instance, stay 31, and in parallel therewith, a bi- directional plunger 61a is installed inside the stay 31. In addition, projection and retraction of the plunger 61a are so arranged as switching the air pressure supplied form a compressor C by operating a solenoid valve B. The stay 32 is also constructed in the similar way. In the above way, it is possible to open and close the swinging part K, namely door 1 with small operating power and to prevent any damage on the member even though any large restriction force is applied to the door 1 during opening/closing operation thereof, by aid of the plunger 61a etc. acting as a shock absorber.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to external gates for buildings, particularly garage doors.

[Conventional technology]

Conventional electric rotating lifting doors transmit electric power directly to the rotation of the rotating parts such as the door, so if an unexpected external force is generated on the rotating parts due to an obstacle, the motor will There was a risk of damage to the electric system.

[Problem that the invention seeks to solve]

The technical problem of the present invention is that by interposing a pressure member in the power transmission path for driving the rotating part of the door slot, the shock-absorbing effect avoids damage caused by sudden external force and improves the response of the plunger in and out. , which is made as fast as possible by utilizing aerostatic pressure (the actual moving speed of the plunger can be controlled by a braking mechanism, so it is a separate technical matter).

[Means and Embodiments for Solving Problems] To describe the structure of an embodiment of the electric rotating lift door according to the present invention with reference to the drawings, there is a main surface of the door l near the second side edge of the door l. One end of the support arms 21 and 22 is attached in a direction intersecting with the other ends 21a and 22 of the support arms 21 and 22, respectively.
A and A are respectively supported by two shaft supports 41 and 42 arranged on the 10-axis When the door l is vertical, it is the closing limit, and when the door l is raised and the main surface of the door l is horizontal, it is the door limit. In a rotary lift door whose ground height is approximately equal to A bidirectional plunger 61a (for example, the supports 31 and 32 relative to the ground surface of the axis
62a), and the plunger 61a (62a) is moved in and out by switching the air pressure from the compressor C by operating a solenoid valve B.

Note that the rotating part is equipped with a stopper that regulates the lower limit and upper limit, but it is not shown for the sake of clarity.The second digit of the code used in this specification is 2. The left and right sides of the support system of the door 1 are shown, and although some are not shown, they appear identical to those of other systems.

[Effect]

Since the present invention has the above configuration, the plunger 6
1a (62a) does not exist, it is possible to make the urging member 61 (62) stronger as the rotating part K reaches its lower limit. l can be opened and closed with a light operating force. Further, the compressor C is constantly pressurized to a constant pressure by electric power. Therefore, if a command is given to raise or lower the plunger 61a (62a) by commanding the opening/closing of the electromagnetic valve B, the rotating portion engaged with the plunger 61a (62a), that is, the door 1, will be electrically opened/closed. Even if the movement of the IWI is forcibly restrained during the opening/closing operation of the door 1, the plunger 61a (62a) acts as a kind of buffer, so there is no particular danger or risk of damage to the components (the plunger's It would be safer if a separate braking mechanism was provided for the moving speed.) If manual opening/closing is required, pressurize the plunger 61a (62a) from the compressor C by operating the solenoid valve B, and ventilate the pressurized chamber on the plunger 61a (62a) side (beyond the solenoid valve B) to the atmosphere. Just do it.

As another embodiment, the present invention can of course be applied to a type of rotating elevator door in which the axis of rotation X moves up and down with respect to the ground surface, as shown in Japanese Patent Application No. 62-276191. In this case, the support column 31 (32) serves as a convenient space for storing the biasing members 61 and 62, but is also suitable as a place for storing the plunger 61a (62 &).
The rotary lift door disclosed in the above cited publication can be used as an electric rotary lift door without changing its appearance. 1st year of junior high school recruitment 4zip season vs. Ut's τ゛ is there...

〔Effect of the invention〕

According to the present invention, the pressurizing output of the compressor C is instantaneously transmitted to the plunger 61'a (62a) through the solenoid valve B, so the response is extremely fast.

Furthermore, even if the movement of the door 1 is forcibly restrained while the rotating part K of the door 1 or the like is electrically opened/closed, it is possible to obtain an electric rotating lift door that is free from the risk of damage to the transmission system. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the electric rotary lift door according to the present invention, and FIG. 2 is a side sectional view showing the main structure of FIG. 1. l...Door 61, 62...Biasing member 61a, 62a1 Plunger X...Axis C...Compressor B... ···solenoid valve

Claims (2)

[Claims] (1) One end of each support arm is attached near the second side edge of the door in a direction intersecting the main surface of the door, and the other ends of the support arms are connected to each other when the door is closed. The door is supported by two shaft fulcrums arranged on one axis parallel and horizontal to the main surface, and when the door is lowered and the main surface of the door is vertical, it is at the closing limit, while the door is raised. When the main surface of the door is horizontal, the opening limit is reached, and the horizontal distance of the support arm and the ground height of the pivot point when the door is closed are approximately equal to each other,
A biasing member exhibiting a reaction force moment that is approximately equal to the gravitational moment of the rotating portion such as the door or support arm is engaged between the rotating portion and the ground surface or a member that is integrated with the ground surface, and the biasing member An electric rotary lift door characterized in that a bidirectional plunger is arranged in parallel with the member, and the plunger is moved in and out by switching air pressure from a compressor by operating a solenoid valve. (2) In a rotating elevator door in which the support that supports the axis of rotation of the rotating part relative to the ground expands and contracts in response to the rotation of the door, both the biasing member and the bidirectional plunger are as described above. 2. The electric rotating lift door according to claim 1, wherein the door is hidden within a support.