JPH01293809A - Electrically-driven winding-type curtain device - Google Patents

Abstract

PURPOSE:To miniaturize a device in good appearance, and enable the device to be easily fitted to a sightseeing bus or the like also, by rotating a take-up pipe with a built in motor, via a gear, and by opening or closing a curtain. CONSTITUTION:At the left end of a take-up pipe 11, a motor 13 forming a co-axis is contained. The external end of the motor 13 is firmly fitted on a pivotally supporting plate 2 fitted on a window frame, with a set-screw 14, and on a motor shaft 13a, a driving gear 15 with a diameter equal to that of a follow-up gear 12 is fitted. Besides, between the pivotally supporting plate 2 and the right lower end of a fitting plate 3, via bearing 16, 16 made of synthetic resin, a transmission shaft 17 in parallel with the take-up pipe 11 is pivotally supported, and the transmission gears 18, 18 of equal diameters fitted at both the ends of the transmission shaft 17 are respectively fitted on the driving gear 15 and the follow-up gear 12. When the take-up pipe 11 is rotated by the motor 13 via the gears 15, 18, 12, then a curtain 10 is opened or closed, and rollers 20 at both the ends of an engaging rod 19 fitted at the lower end of the curtain 10 are fitted on guide rails 21, and so the curtain 10 is smoothly opened or closed and is not waved in the wind.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roll-up electric curtain device that is effective for use in shading windows of tourist buses, houses, etc., for example.

[Conventional technology]

In a roll-up type curtain device, a thin coil spring or the like is inserted into a winding pipe to which the upper end of the curtain is fixed, and when shielding a window, the locking rod attached to the lower end of the curtain is The ends of the locking rods are pulled down against the downward movement of the window frame. There is a type of curtain that can be rolled up.

There is also an electric type that opens and closes the curtain by rotating the winding pipe forward and backward using a motor.

[Problem to be solved by the invention]

The above-mentioned spring-type curtains are difficult to apply to windows in high places because they need to be operated directly in close proximity to the curtains.

In addition, when closing the curtain, it is necessary to lock both ends of the lowered locking rod to both hooks, and when opening the curtain, it is necessary to remove both ends of the locking rod from both hooks. If you carelessly lock one end of the locking rod to the hook, the locking rod will tilt, causing the other side of the curtain to sag, making it unsightly and possibly damaging the curtain device. or malfunction.

Furthermore, to make the curtains ajar with any vertical width,
Since it is necessary to provide a large number of hooks on the window frame, it is unsightly, and also in this case, both ends of the locking rod must be locked to hooks at the same height, which is troublesome.

In the conventional electric type mentioned above, the drive device such as a motor is
Since it is provided outside the winding pipe, the curtain device becomes large and unsightly, making it unsuitable for use on tour buses.

[Means to solve the problem]

The present invention provides a horizontal winding pipe which is pivotally supported on a window frame with a pivot fitting and to which the upper end of the curtain is fixed.
A coaxial motor is accommodated, and one end of the motor is fixed to the pivot bracket, and the winding pipe and the motor are linked to each other via gears, and if necessary,
Furthermore, a locking rod is attached to the lower end of the curtain, and both ends of the locking rod protruding from both sides of the curtain are engaged with vertical guide rails, and limit switches are installed at both upper and lower ends of the guide rail to stop the motor. By providing this, the above-mentioned problem is solved.

[For production]

According to the device of the present invention, the motor housed in the winding pipe rotates the winding pipe via a gear, and the curtain is opened and closed.

By engaging both ends of the locking rod suspended from the lower edge of the curtain with the guide rail so as to be able to move up and down, the curtain can be opened and closed smoothly and the closed curtain can be prevented from flapping in the wind.

Further, if limit switches for stopping the motor are provided at both the upper and lower ends of the rail, the motor can be automatically stopped at an optimal location without overloading the motor when opening and closing the curtain.

〔Example〕

The drawing shows the left side of an embodiment of the present invention. left side of the figure) pivot plate (2
) and an inner downward-pointing mounting plate (3), with circular holes (4) and (5) concentrically drilled in the pivot plate (2) and the mounting plate (3), respectively. has been done.

Inside the pivot bracket (1), there is a support ring (6) parallel to the pivot plate (2), three setscrews (7) and a cylindrical member (7a) as a spacer (in Fig. 4). Between the pivot plate (2) and the support ring (6), three pins (9) parallel to each other and externally fitted with synthetic resin bearings (8) (omitted in Fig. 4) is pivotally installed.

The winding pipe (11) around which the upper end of the curtain (10) is wound
) passes through the circular hole (5) of the mounting plate (3), and on the outside of the mounting plate (3), a driven gear (12) with teeth cut on the outer periphery of the intermediate portion is fitted. ing.

A roller portion (12a) formed at the outer end of the driven gear (12)
) is pivotally supported by the three bearings (8).

The right end of the winding pipe (11) may be simply pivoted to the window frame using something similar to the pivot bracket (1), but it may also have a structure that is symmetrical to the left end, as in a modification described later. .

At the left end of the winding pipe (11) is a coaxial motor (1
3) is accommodated.

The outer end of the motor (13) is fixed to the pivot plate (2) with a screw 14) (not shown in Fig. 4), and is inserted through the circular hole (4) of the pivot plate (2). The motor shaft (13a) to be passed through has a drive gear (13a) with the same diameter as the driven gear (12).
15) is fitted.

A transmission shaft (16) parallel to the winding panel (11) is connected between the lower right end of the pivot plate (2) and the mounting plate (3) in FIG. Transmission gears (18) (18) of equal diameter are fitted on both ends of the transmission shaft (17) and mesh with the drive gear (15) and the driven gear (12), respectively.

A locking rod (19) for curtain extension and a weight is attached to the lower end of the curtain (10), and coaxial rollers are attached to the end surfaces of the locking rod (19) that protrude from both sides of the curtain (10). (20) is installed.

The roller (20) is fitted in a U-shaped groove-shaped guide rail (12) that is attached to a window frame (not shown) directly below the pivot bracket (1) and facing up and down. There is.

Limit switches (22) (22) are attached to both upper and lower ends of the guide rail (21), which are activated by the roller (20) to stop the motor (13).

In the above device, the motor (13) drives the gear (1).
5) Winding pipe (11) through (18) (12)
When the curtain (10) is rotated, the curtain (10) opens and closes, and the rollers (zO) at both ends of the locking rod (19) attached to the lower end of the curtain (10) fit into the guide rail (21). Therefore, it opens and closes smoothly and does not flap due to lice.

[Modified example]

If the winding pipe (11) is long, or if the winding pipe (11) is long or the curtain (
10) is heavy, the right part of the device should be completely symmetrical with the left part described above, and two motors (13) on the left and right should be installed.
) may be used to rotate the winding pipe (11).

In this case, the winding pipe (11) is divided into three parts, which are connected to each other so that they can rotate relative to each other, and while the operation switch (path shown) is operated, the left and right motors (13) are If they are controlled by a dedicated limit switch (22) and can operate independently of each other,
Even if the amount of winding on both sides of the curtain is incorrect and the bottom edge of the curtain is no longer horizontal, once the curtain is fully opened or fully opened, the drooping side of the curtain will move to the other side. The lower end of the curtain can be automatically corrected so that it is horizontal if the lower end of the curtain is wound excessively or the lowering of the curtain stops first.

Further, the present invention can be applied to a roll-up electric curtain device of a different type from that of the embodiment.

〔Effect of the invention〕

Although the device of the present invention is electric, the motor is housed in the winding pipe, so it is small and stylish, and can be easily installed on tour buses and the like.

Moreover, since it is electrically operated, it can be controlled remotely and can be installed in windows in high places that are difficult to access, and by operating a switch, the curtain can be left half-open at any vertical width.

Further, by attaching a locking rod to the lower end of the curtain and engaging the both ends of the locking rod with the guide rail so as to be able to move up and down, the curtain can be opened and closed more smoothly, and the curtain will not flap due to the wind.

At this time, by providing limit switches for stopping the motor at both the upper and lower ends of the rail, it is possible to automatically stop the motor at the optimal location without overloading the motor when opening and closing the curtain.

[Brief explanation of the drawing]

FIG. 1 is a central vertical sectional front view showing the left part of an embodiment of the present invention, FIG. 2 is a view taken along line A-A in FIG. 1, and FIG. 3 is a B-B in FIG. 1. FIG. 4 is a perspective view of the drive unit with some members omitted. (1) Pivot fitting (8) Bear link (10) Curtain (11) Winding pipe (12) Driven gear (13) Motor (15) Drive gear
(17) Transmission shaft (18) Transmission gear (19) Locking rod (20) Roller (21) Guide rail (
22) Limit switch 11, . 59Figure 2

Claims (2)

[Claims] (1) A coaxial motor is accommodated in a horizontal winding pipe which is pivotally supported on the window frame with a pivot fitting and the upper end of the curtain is fixed, and one end of this motor is connected to the It is fixed to the supporting bracket, and the winding pipe and motor are
A winding type electric curtain device that is connected to each other via gears. (2) A locking rod is attached to the lower end of the curtain, and both ends of the locking rod protruding from both sides of the curtain are engaged with a vertical guide rail, and limits are placed at both upper and lower ends of the guide rail to stop the motor. The roll-up electric curtain device according to claim 1, further comprising a switch.