JPH01295987A - Winding type screen device - Google Patents

Abstract

PURPOSE:To easily switch freely the case where only one is used over to the case where both are opened or vice versa by providing casings for opening or closing operation to the tips of two screens of different uses in a mutually connecting or separating manner. CONSTITUTION:Casings 9 and 10 for opening or closing operation are attached to the tips of screens 7 and 8 of two different kinds in terms of usage, e.g., pest control netting, heat insulator sheet, etc., which are wound around upper and lower winding shafts 5 and 6 in a windable or rewindable manner along screen guides 4. The casings 9 and 10 are connected with a connecting metal 24 and any one of upper and lower screens 7 and 8 is wound up for selectively using the screens 7 and 8. Alternatively the casings 9 and 10 are separated to wind up both the screens 7 and 8. The casings 9 and 10 are allowed to fully open.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a roll-up screen device equipped with two types of screens for different uses.

[Prior Art] A roll-up screen device equipped with two types of screens for different uses is known, for example, as described in Japanese Patent Publication No. 55-45717. this is.

Two winding rolls are provided at the top and bottom of the door frame, and the shielding sheet I and the net sheet that make up the covering sheet are wound around these rolls, respectively. Both sheets can be used selectively depending on how the sheet is wound up.

However, in the conventional method described above, the shielding sheet and the mesh sheet are connected and fixed together, so even though they can be used selectively, there is a drawback that it is not possible to select a fully open state where both sheets are not used. Ta.

On the other hand, Japanese Patent Laid-Open No. 49-118254 discloses a blind in which a blank space is provided in a part of a blind made by connecting a plurality of sheets of one different type, and a fully open state can be selected using the blank space. However, the winding operation is extremely troublesome, for example, when changing from a state in which the sheet farthest from the empty space is being used to a fully opened state.

[Problems to be Solved by the Invention] An object of the present invention is to provide a roll-up screen device that can be easily used for selectively using two screens and for fully opening both screens. be.

[Means for Solving the Problems] In order to solve the above problems, the present invention arranges winding shafts at both ends of the screen frame, and connects screens for different purposes to a common screen guide on these winding shafts. This screen device is wound around the screen so that it can be fed out and wound up along the screen, and is characterized in that a stile for opening and closing operations is attached to the tip of each screen, and these stile can be connected and disconnected from each other.

[Function] When the frames attached to two screens are connected to each other, both screens can be used selectively by winding up one of the screens, and these frames can be separated from each other. In that case, P? By rolling the screens together they can be opened fully.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, 1 is a screen frame attached to the inside or outside of a glass shoji in a building opening such as a window, and the screen frame 1 is driven by the elastic restoring force caused by the twisting of a coil spring. Upper and lower winding boxes 2.3 with built-in winding shafts 5.6 and these winding boxes 2
．． Left and right screen guides 4, 4 connecting the ends of 3
The upper and lower winding shafts 5.8 each have two types of screens 7.8 for different purposes, such as insect-proofing nets and heat-insulating sheets, which are fed out and rolled up along screen guides 4, 4, respectively. The screens 7 and 8 are freely wound around each other, and frames 8 and 10 for opening and closing operations are attached to the tips of each screen 7 and 8, respectively.

As is clear from FIGS. 2 and 3, on both left and right ends of the screen 7.8, a large number of small protrusions 15 of engaging parts are arranged at regular intervals on both sides of the edge of the cloth tape 14. A locking band 13 made of It is engaged with the inner edge of the holder in a manner that prevents it from coming off.

The small protrusions 15 in the above-mentioned locking band 13 are made by bending a thin wire made of synthetic resin with a circular cross section into a U shape, and sewing and fixing it with a thread 16 parallel to the tape surface. The bent portion 15a is an engaging portion that engages with the inner edge of the slit 19. These small protrusions 15 located on both sides of the tape 14 can be formed as a continuous thing by sequentially bending one thin wire so as to straddle the tape 14 as shown in the figure. protrusion! 5 are positioned 180 degrees out of phase with each other.

Further, as shown in FIG. 2, the middle rail 18 is attached within the screen guides 4, 4 via a cushion material 21 by a protector 20 fixedly attached to the screen guide 4.4. Middle rail 18 in two screen guides 4.4 by material 21
are urged away from each other, thereby maintaining a suitable tension on the screen 7.8. In this case, the middle rail 18 may be fixed to the screen guides 4, 4 with screws or the like at a position where an appropriate tension is maintained on the screen 7.8.

The middle rail 18 is made of synthetic resin in order to improve the slidability with the locking band 13, and is attached to the screen guide 4.
．． The inner rail 18 may be disposed inside the screen guide 4.4, but it may also be formed of metal such as aluminum, or the middle rail 18 and the screen guide 4.4 may be integrated into one piece instead of being constructed separately.

Furthermore, the frames 9 and 10 attached to the ends of the two screens 7.8 are configured to be able to be connected and separated from each other by means of a connecting fitting 24, and when they are connected, the frames 9 and 10 are attached to the ends of the screens 7. Both screens 7.8 can be used selectively by winding up or down in either direction, and when the two frames 9.10 are separated,
By winding up both screens 7.8 together, they can be fully opened.

In order to enable the screen 7.8 to be locked in the intermediate open position (the state shown in FIG. 1), locking notches 25 are provided in the left and right screen guides 4, 4 at predetermined intervals. On the other hand, protrusions 26 that engage with the notches 25 are provided at both lengthwise ends of one of the frames 9 and are biased in the projecting direction by a spring. 27 is the protrusion 2
6 is an operator for appearing and appearing.

Note that the strength of the winding forces on the two winding shafts 5 and 8 may be approximately the same, but one of them may be set to be stronger than the other.

In the screen device having the above configuration, the frame 9.10
When the screens 7.8 are connected to each other by the connecting fittings 24, both screens 7.8 can be used selectively by winding up either the upper or lower screen 7.8. Screen guides 4, 4 notches 25
By engaging the screen 7.8, the screen 7.8 can be stopped in an intermediate open position.

Furthermore, when the two frames 9.10 are separated, they can be fully opened by winding up both screens 7.8 together.

The above-mentioned protrusion 2G is attached to both frames 9. It may also be provided in IO.

Thereby, the two separated screens 7.8 can each be stopped in a half-open state.

In this way, both frames 9. When the protrusion 26 is provided in lO, both frames 9. When the IOs are connected, the protrusions 7 provided on one of the frames can be stored so as not to interfere with the locking of the protrusions provided on the other frame, or both protrusions can be locked in the notches. It is desirable to do so.

Further, the means for stopping the screen 7.8 at the intermediate open position is not limited to the one provided with the notches 25 and protrusions 26 as described above, and the means for stopping the screen 7.8 at the intermediate open position is not limited to the one provided with the notches 25 and protrusions 26 as described above.
It is also possible to adopt screens 7 and 8 with increased sliding resistance.

Furthermore, the two screens 7.8 are not limited to an insect-proofing net and a heat insulating sheet, but may be sheets having different light transmittances, and their combination, vertical relationship, etc. are arbitrary.

Fig. 4 shows another example of the configuration of the locking band, and this locking band 3
In case No. 3, a large number of independent small protrusions 35 are sandwiched at the edge of the tape 34 so as to straddle the tape 34.

The locking bands 13, 33 can be constituted by one of a pair of engaging bands in a reprinted synthetic resin fastener.

In the illustrated embodiment, the case where the screen device is configured to open vertically has been explained, but it can also be configured to open horizontally, and its scope of application is applicable to devices that are installed in building openings such as windows. The present invention is not limited, and can also be applied to a screen device attached to an opening of a frozen showcase, a serving cart, or the like.

[Effects of the Invention] As described above, according to the present invention, in a roll-up screen device equipped with two types of screens for different purposes, a frame for opening and closing operation is attached to the tip of each screen,
Since these frames can be connected and disconnected from each other,
By connecting and disconnecting these frames, it is possible to easily use the two screens selectively or to fully open both screens.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the present invention, Fig. 2 is a partially omitted enlarged sectional view taken along line A-A, Fig. 3 is a partial front view showing the structure of the locking band, and Fig. 4. FIG. 3 is a partial perspective view of another configuration example of the locking band. l Φ-car body, 4 fist Φ screen guide, 5
．． 6 ・Take-up shaft, 7, 8 ・Base screen,
9.10...Stile. Patent applicant: Seiki Sales Co., Ltd. Figure 1

Claims (1)

[Claims] 1. In a screen device in which winding shafts are arranged at both ends of the screen frame, and screens for different purposes are wound around these winding shafts so that they can be freely fed out and wound up along a common screen guide, the A roll-up screen device characterized in that a stile for opening and closing operations is attached to each tip, and the stile can be freely connected and disconnected from each other.