JPH0336697Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a shutter with a screen installed at an opening in a building such as an entrance or exit window or a shower window.

(Prior art) The applicant filed a utility application filed in 1983 before filing the present application.
In No. 48753 (Utility Model Application No. 58-151293), advertisements or decorative photographs or paintings are placed near the front or back of a shutter that can be opened and closed at an opening or a show window of a building, etc. We have developed a shutter equipped with a printed screen, which is characterized by having screens printed with characters, etc. printed on them arranged side by side, and making the screens freely expandable when the shutter is closed.

This shutter is called a screen-equipped shutter, in which the lower end of the shutter and the lower end of the screen are mechanically connected.
There are two types of screens: one in which the screen is extended in conjunction with the shutter by a drive device for the shutter, and the other in which the screen has a drive device separate from the shutter and the screen is extended arbitrarily independently of opening and closing of the shutter.

(Problems to be solved by the invention) In such a shutter equipped with a screen, it is necessary to prevent the screen from being damaged due to maintenance inspections or late-night mischief, etc., so it is required that the shutter and screen can be driven independently. .

However, as mentioned above, such screen-equipped shutters are usually installed in the opening of a building and the screen is placed facing outdoors, but if the screen is closed, In other words, when the shutter is opened or rolled up in the extended state, the screen is subjected to large pressure due to wind pressure or something leaning against it, causing so-called flutter or flapping, and the screen may come off the guide rail, causing abnormalities in opening, closing, or unfolding. In addition, there was a risk of damaging the screen.

(Means for solving the problem) In order to solve the above problem, according to this invention, a shutter that can be opened and closed provided in an opening of a building or a shower window, etc., is approached to the front or back side. In a shutter equipped with a screen in which the screens are arranged in parallel so that they can be freely expanded, when the shutter is in the fully closed state, that is, at the lower limit position, the screen can be lowered only while receiving the lower limit signal, and the shutter receives the rising signal. In this case, a shutter with a screen is provided, which is characterized in that the screen also rises.

In the above configuration, the screen can be lowered in conjunction with the shutter.

In this case, when the shutter is lowered to the fully closed state, the screen can also be automatically lowered to the extended state.

(effect) The above technical means works as follows.

A screen that is about to start lowering from a state where the screen is not extended, that is, a fully open state, receives a signal indicating that the shutter is fully closed, for example, from a limit switch installed on the shutter opening/closing device or a lower limit detector that detects the lowering state of the shutter. It is possible to lower the screen only when it receives a signal, and the screen acts as if it lowers after confirming that the shutter is fully closed.

Also, if the shutter receives a rising signal when the shutter is fully closed (in this case, the screen is in a half-closed or fully closed state), the screen will start rising at the same time as the shutter or earlier than the shutter. This causes the screen to always rise faster than the shutter.

Therefore, since there is always a shutter on the front or back side of the screen part when the screen is in an extended state, that is, whether the screen is fully closed or partially closed, there is always a shutter on the back side of the screen. Therefore, external forces such as wind pressure that are applied to the screen from the shutter side act as if they are blocked by the shutter.
When coming from the screen side, the screen is supported in close contact with the shutter, so that external forces above a certain level act as if they were being applied to the shutter.

(Embodiment) An embodiment of this invention will be described with reference to the drawings. Reference numeral 1 denotes a shutter that is raised and lowered by the rotation of a shutter drum 2 by a drive device (not shown).

3 is a screen attached to the shutter 1, and the screen 3 is connected to the screen drum 4.
It is formed so that it can be raised and lowered by being rotated by a drive device (not shown), that is, it can be extended so that it can be disposed in parallel with the shutter 1.

Reference numeral 5 denotes a detector disposed on the ceiling, which detects the fully closed state of the shutter 1, that is, the lowest limit state, and transmits the detection signal to the shutter 1.
and a control panel (not shown) connected to each driving device of the screen 3.

Figure 2 is a circuit diagram of the main parts, where R is a relay activated by the lower limit signal of the detector 5, r is a contact of relay R, M1 is a magnet for lowering the shutter, M2 is a magnet for lowering a screen, and M3 is for raising a shutter. Magnet, M4 is a magnet for raising the screen, m1, m2, m3, m4 are magnets M
1, each contact of M2, M3, M4, SW1
is the switch for lowering the shutter, SW2 is the switch for lowering the screen, SW3 is the switch for raising the shutter, SW4 is the switch for raising the screen,
SW5 is a shutter drop stop switch, SW6 is a screen drop stop switch, SW7 is a shutter rise stop switch, SW8 is a screen rise stop switch, and SW9 is an emergency stop switch.

Shutter 1 can be lowered arbitrarily by operating SW1, but screen 3 cannot be lowered arbitrarily, and detector 5 is activated only when shutter 1 is at the lower limit. The contact closes and the screen 3 can be lowered by operating SW2.

Shutter 1 can be raised arbitrarily by operating SW3, and screen 3 can be raised by operating SW4. However, when shutter 1 receives a rising signal by operating SW3, contact m3 of magnet M3 Upon closing, the screen will automatically rise.

The detector 5 may be a contact type or a non-contact type, and its detection signal may be transmitted by wire or wirelessly, and may be any type that can detect the lowered state of the shutter 1, that is, the almost fully closed state. It is optional.

The present invention is not limited to the above-mentioned embodiments, and may be optionally operated, for example, by using a circuit that can be operated remotely, or by adding a safety device for shutter operation.

(Effect of the invention) As explained above, the present invention has the advantage that no matter what state the screen is in, ie, fully closed or partially closed, the screen is always in the front or back state when the screen is in the extended state. Due to the presence of the shutter, external forces above a certain level, such as wind pressure applied to the screen, are always applied to the shutter, and there is no risk that the screen will become sagging due to the wind pressure and fall out of the lifting rail. This has the advantage that the screen can be raised and lowered smoothly and the screen can be prevented from being damaged with a simple structure.

[Brief explanation of the drawing]

The drawings show an embodiment of the screen-equipped shutter according to this invention, and FIG. 1 is a side view of the main part, and FIG. 2 is a wiring diagram of the main part. In the drawings, 1 is a shutter, 2 is a shutter drum, 3 is a screen, 4 is a screen drum, and 5 is a detector.

Claims (1)

[Scope of utility model registration request] In a shutter equipped with a screen, in which screens are installed in parallel in a freely deployable manner close to the front or back of a shutter that can be opened and closed in an opening of a building or a show window, etc., when the shutter is in a fully closed state, that is, at the lower limit position. This shutter with a screen is characterized in that the screen can be lowered only while the lower limit signal is being received, and the screen is also raised when the shutter receives the raise signal.