JPH02136488A - Electric revolving lifting door - Google Patents

Abstract

PURPOSE:To simplify structure by disposing a motor on ground surface near by a revolving lifting door, connecting the shaft output of the motor to a flexible shaft and fixing the end of the flexible shaft to a rotational section such as the door, a support arm, etc. CONSTITUTION:A motor M is arranged onto a structure unified with ground surface near by a revolving lifting door, and the shaft output of the motor M is coupled with a flexible shaft 5 having torsional rigidity. The end 5a of the shaft 5 is fixed to a rotational section K such as the door 1, a support arm 21, etc., along an axis Y parallel with an axis X except the axis X. The shaft output of the motor M is decelerated to form forward and reverse strokes at 90 deg., and the end 5a of the flexible shaft 5 is also turned at 90 deg. to open and close the door 1. Accordingly, structure is simplified, and general-purpose properties can be improved.

Description

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

[Conventional technology]

Various types of electric rotary lift doors have been proposed, but all of them have complex structures, and have problems in terms of flexibility in mechanical arrangement and applicability to already constructed manual rotary lift doors.

(Problems to be Solved by the Invention) The technical problem of the present invention is to provide an electric rotating elevator door that is simple in structure and highly adaptable to terrain and conventional structures.

[Means and Embodiments for Solving the Problems] The structure of an embodiment of the electric rotating lift door according to the present invention will be described with reference to a drawing. One end of the support arms 21, 22 is attached in the direction of Each is supported by a pivot point 4142, and when the door 1 is lowered and the main surface of the prisoner is vertical, the door is closed, and when the door 1 is raised and the main surface of the prisoner is horizontal, the door is closed. In the rotary lift door configured as described above, a motor M is disposed on a structure integrated with the ground near the rotary lift door, and the shaft output of the motor M is connected to a torsionally rigid flexible shaft 5. The end 5a of the flexible shaft 5 is fixed to a rotating part K such as the ill of the rotary elevator door or the support arm 21 along an axis Y parallel to the axis X other than the axis X. It is configured to do this. Note that a stopper that limits the rotational stroke of the support arms 21 and 22 to approximately 90 degrees, a biasing member for reducing the gravitational moment on the rotating portion, and the like are not shown for the sake of clarity. Further, 31 and 32 are columns that support the pivot points 41 and 42.

[Effect]

Since the present invention has the above configuration, if the shaft output of the motor M is set in advance to have a forward and reverse stroke of 90° above deceleration, the end 5a of the flexible shaft 5 also rotates by 90". As a result, the rotating part is forced to reverse by 90 degrees, so Ill is eventually opened and closed by the power of the motor M. In this case, the rotating part is forced to rotate by 90 degrees. Since the center of motion is the axis X, the end 5a of the flexible shaft 6
must be fixed (engaged) to the rotating part K parallel to the axis X. It doesn't matter where it engages at the rotating part (■), but since it is often difficult to make it coaxial with the axis X due to the structure of existing parts, it is better to forget to exclude it. By limiting the configuration of the present invention to, in the end, it is possible to freely select the engagement position of the existing manual rotary lift door, attach the motor M and the flexible shaft 5, and electrify it.Total workload does not change depending on the engagement position of the flexible shaft 5, only the magnitude of the displacement varies (ignoring the weight of the flexible shaft 5).Whether or not a clutch is attached to the electric system of the motor M to prevent danger is determined. The flexible shaft 5 can be a rod with a universal joint or a direction changing gear interposed therebetween.Also, as long as the rod has torsional rigidity, a free extension mechanism can be attached to the rod. Even if it is, it is within the technical scope of the flexible shaft 5 of the present invention.

〔Effect of the invention〕

According to the present invention, the shaft output of the motor M is applied to the rotating part at a point other than the rotating axis X (Y), and the Iq shaft 5 is fixedly engaged with the rotating part K in parallel with the axis X. This simplifies the installation of the motor M, the transmission system, the connection means, etc., increases the versatility of M, and increases the versatility for obtaining a rotary lift and allows it to be retrofitted to various types of existing manual rotary lift doors. Therefore, it is possible to obtain an electric rotary lift door with higher efficiency.

41-42 Conflict・ ・φ axis fulcrum 5 races 5a -Tφ・ ...Flexible shaft ···end

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of an embodiment of an electric rotating lift door according to the present invention. 1 ・ X ・ Y @ ・ Door/shaft - parallel shaft/support arm

Claims (1)

[Claims] One end of the support arm is attached near the two side edges of the door in a direction intersecting the main surface of the door, and the other ends of the support arm are connected to one end perpendicular to the side boundary surface. When the door is lowered and the main surface of the door is vertical, it reaches the closing limit, and when the door is raised and the main surface of the door is horizontal. In a rotating lift door that can only be opened when and the end of the flexible shaft is fixed to a rotating part such as a door of the rotary lift door or a support arm along an axis parallel to the axis other than the above-mentioned axis. Elevating door.