JPH02209108A - Motor-driven curtain opening and closing device - Google Patents

Abstract

PURPOSE:To open and close a curtain by both a motor and manual operation without applying excess load to the motor by arranging a spiral projecting part in a rail and fitting a ring equipped with a semicircular lead guide whose diameter is larger than that of the projecting part. CONSTITUTION:A motor 2 and a speed reducer 3 are linked and a rail 6 is linked to the output shaft of the speed reducer 3. In the outer circumference of the rail 6, a spiral projecting part 7, whose cross section is made circular, is provided and a ring 12 equipped with a semicircular lead guide 8, which goes to be a runner, is arranged. The inner diameter of the semicircular lead guide 8 is made larger than the outer diameter of the rail 6. The ring 12 equipped with the lead guide 8 hangs a curtain 9. The moving direction of the runner 12 equipped with the semiconductor lead guide 8 is changed to right and left according to the rotating direction of the motor 2 and the curtain 9 is opened and closed. When the curtain 9 is wholly closed or opened, the ring 12 equipped with the lead guide 8 is idly rotated on the rail and the excess overload is not applied to the motor. Then, the curtain can be opened and closed by either the motor or manual operation.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention has a simple mechanism in which a ring, which is a runner, moves by rotating a rail having a spiral protrusion on its outer periphery. Even if the electric motor breaks down, it can be opened and closed easily by hand, and it can be opened and closed using remote control.
This invention has a wide range of applications, such as the ability to open and close curtains from a distance by attaching a receiver.

(Prior art) Most conventional curtains are opened and closed manually, but this is very inconvenient when you want to open and close the curtains from a distance, or when it is difficult to reach the curtains. Ta. In addition, the electric curtain opening/closing devices currently on sale connect the electric motor and the curtain with a wire to open and close the curtain, so they cannot be opened and closed manually, and if the electric motor breaks down, they cannot be used at all.

(Problems to be Solved by the Invention) The present invention does not use wires and has a structure in which the electric motor and the curtain are not directly connected, so the curtain can be opened and closed by either the electric motor or manually without placing an extra load on the electric motor. Therefore, the inconvenience caused when the electric motor breaks down is eliminated, and furthermore, the curtain can be opened and closed from a distance from where the remote control box is installed.

(Means for Solving the Problems) The present invention provides a rotatable rail driven by a motor, with a spiral convex portion having different winding directions on the left and right sides on the entire outer circumference, and the rail has the convex portion. A ring with a semicircular lead guide with a diameter larger than the length of the curtain is movably fitted, and even if the curtain is opened and closed while the motor is rotating, the ring will idle and cause an overload on the motor. By avoiding this, the desired purpose can be achieved.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

(1) is a cover, (2) is an electric motor, and (3) is a speed reducer. (4) and (5) are bearings, and (61 is a rail).

The electric motor (2) and the reducer (3) are connected, and the reducer (3)
A rail (6) is connected to the output shaft of. Therefore, the rotation of the electric motor (2) is decelerated by the speed reducer (31) and the rotation of the electric motor (2) is reduced by the speed reducer (31).
Rotate. The decelerator (3) is fixed to a bearing (4), and the bearing (4) and the bearing (5) are fixed with a fixing screw (4a).
It is fixed to the window frame by (Sa). The rail (6) is rotatably supported by a bearing (4) and a bearing (51K).The outer periphery of the rail (6) has a continuous convex portion (force A ring α2 having a semicircular lead guide (8) serving as a runner is disposed between the convex portions (7).The semicircular lead guide (8) has a circular cross section. And its inner diameter is the rail (
Ring α has a semicircular lead guide (8) and can be moved manually by climbing over the protrusion (7) made of a spring material wrapped around the rail (61).
A curtain (9) is hung from 2.

The wire is the power plug, and αυ is the B for remote control.
It is ox.

Next, the effect will be explained.

When the electric motor (2) rotates, it is decelerated by the reducer (3) and rotates the rail (61).
) Convex part (7) made of a spring material spirally wound around the outer periphery of the
similarly rotates, and the ring α2, which has a semicircular lead guide (8) arranged between the convex part (7) and the convex part (force), rotates between the convex part (7) and the convex part (force) by screw action. The curtain is opened and closed by moving along the outside of the rail cover αQ.

A semicircular lead guide (
The runner a7J having 8) can change its moving direction from side to side, allowing the curtain (9) to open or close.

FIG. 3 is a block diagram of electrical connections when using a wireless remote control. By using a microcomputer and adding an alarm clock function, it is also possible to open and close the curtains at a fixed time.

(Effects of the Invention) According to the present invention as described above, the electric motor and the curtain are not directly connected, but are connected via a rail that can rotate freely once and a ring with a lead guide that can freely move in the axial direction to the rail. Therefore, when the curtain is fully closed or fully opened, the ring H with the semicircular lead guide (8) idles on the rail, and no unnecessary overload is applied to the motor, which reduces noise and equipment damage. Moreover, the curtain can be opened and closed by either an electric motor or manually, and the rail part is covered with a cover to simplify and beautify the appearance, which is a highly effective invention from an industrial and practical point of view.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main part of the electric curtain opening/closing device according to the present invention, and FIG. 2 is a partially cutaway front and side view showing the relationship between the rail, a ring having a semicircular lead guide, and a cover. Third. Figure 4 is an electrical block diagram (
2]...Electric motor, (6)...Rail, (force...its protrusion, (8)...semicircular lead guide, (9)...
・Curtain, α2...Ring with semicircular lead guide, 0...Rail force bar

Claims (1)

[Claims] Rotatable rail driven by electric motor A spiral with different winding directions on the left and right sides over the entire outer circumference of A shaped convex portion is provided on the rail, and the convex portion is arranged on the rail. A semicircular lead guide with a diameter larger than the Has a curtain hanging outside the rail cover A ring having a protrusion is movably fitted, The curtain opens and closes while the motor is rotating. Is the ring spinning and causing an overload on the motor? Electric curtain opening/closing that prevents Place.