JP2903084B2 - Screen case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen case for accommodating a screen suspended from behind a ceiling.

[0002]

2. Description of the Related Art As shown in FIG. 10, when a screen 1 used for 16 mm projection, slide projection, OHP, video projector, etc., is hung from the space between a ceiling plate 2 and a slab, that is, from above the ceiling, it is not suitable. In use, it is rolled up and stored above the ceiling plate 2, and is pulled out from an opening 3 formed in the ceiling plate 2 during use.

Conventionally, as a box for accommodating the screen 1 when not in use, a box main body 4 is formed in a U-shaped cross section by extruding a material using aluminum or the like as shown in FIGS. 11 and 12, for example. As means for disposing the box body 4 behind the ceiling, the box body 4 is suspended from the lower end of a suspension bolt 6 having an upper end embedded in a slab 5 above the ceiling plate 2.

In this case, the lower end of the side plate 4a of the box body 4 is positioned at the edge of the opening 3 so that the box body 4
And the opening 3 formed in the ceiling plate 2 are matched with each other. Further, a blind cover 8 is attached to the opening 7 so that the screen 1 cannot be seen from below when the screen 1 is stored. Partly closed.

[0005]

The height positions of the ceiling plate 2 and the slab 5 forming the space for accommodating the box body 4 differ depending on the structure. On the other hand, the box body 4 for housing the screen 1 is mass-produced in a factory, and the size in the length direction can be easily obtained by cutting the extruded shape into appropriate lengths. The size of the short side in the length direction is limited to several types depending on the type of the screen and the storage format (for example, a manual spring type or an electric type).

For this reason, the box body 4 is connected to the opening 7
5 is adjusted so that the position of the slab 5 matches the position of the opening 3 of the ceiling plate 2.
In addition to adjusting the mounting height position of the box body 4 itself, such as using a hanging bolt 6 having a different length or changing the mounting height position of the box body 4 to the hanging bolt 6, There is no way, and the work on the installation site is difficult.

[0007] Also, it is necessary to prepare a plurality of types of short sides in the length direction depending on the type of screen and the storage type (for example, a manual spring type or electric type).

An object of the present invention is to eliminate the disadvantages of the prior art and to reduce the height of the box without changing the mounting position of the screen storage box even if the distance between the slab and the ceiling plate is different. It provides a screen case that can easily adjust the opening to the opening of the ceiling plate by freely adjusting it, and it is not necessary to prepare many types of screens with different short lengths depending on the type of screen Is to do.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a screen case in which a screen suspended by a suspension fitting attached to the lower surface of a slab is housed behind a ceiling. A storage box comprising a combination of a fixed core unit, side units fitted on both sides of the core unit, and an edge unit whose height is adjustable at a lower part of the side unit; The lower end of the screen is locked to an opening edge for drawing out a screen formed on the ceiling plate.

The edge unit is slidably assembled up and down with respect to the side unit, and is connected to the edge unit with a screw through a vertically long hole formed in the edge unit. The gist of the present invention is that a cover unit for closing a part of the cover is detachably fitted.

Further, the side unit is a substantially flat plate-like member having a fitting portion to the core unit at the upper part, or has a horizontal protruding piece bent at 90 degrees in the longitudinal direction on the upper part of the substantially flat plate-like member. The gist of the present invention is that a fitting portion to the core unit is formed at the tip of the horizontal protruding piece.

According to the first aspect of the present invention, the storage box is formed by a combination of the core unit, the side unit, and the edge unit. By combining the units, boxes of more sizes can be formed. In addition, by adjusting the mounting position of the edge unit with respect to the side unit, the lower end of the edge unit can be made to match the edge of the opening for drawing out the screen formed in the ceiling plate without changing the mounting position of the box itself.

According to the second aspect of the present invention, in addition to the above-described operation, the adjustment of the mounting height position of the edge unit can be performed only by sliding the edge unit up and down. It is easy to work because it is only necessary to insert a screw into the side unit and connect it to the side unit.

According to the third and fourth aspects of the present invention, in addition to the above-mentioned functions, the side unit has a substantially flat plate-like member having a fitting portion for fitting to the core unit at an upper portion, and a substantially flat plate-like member. By providing two types, one having a horizontal protruding piece bent at 90 degrees in the length direction at the upper part of the horizontal protruding piece and forming a fitting portion to the core unit at the tip of the horizontal protruding piece, By combining any of them with the core unit, the width in the short direction can be easily formed to a desired width.

According to the fifth aspect of the present invention, in addition to the above operation, the cover unit for closing a part of the opening for drawing out the screen is detachably fitted to the edge unit. If the cover gets in the way during use, it can be easily removed.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a screen case of the present invention, and FIG.
The screen case of the present invention constitutes a storage box by a combination of a core unit 9, two types of side units 10, 11, an edge unit 12, and a cover unit 13, and these units are made of, for example, aluminum alloy as a material. It is integrally molded with an extruded member by using such as.

As shown in FIG. 3, the core unit 9 has a groove 9a for mounting a bolt nut 14 for mounting the screen 1 on a lower surface thereof and a hanging metal fitting on an upper surface thereof. Grooves 9b for mounting bolt nuts 16 for attachment to 15 are formed, and grooves 9c are formed on the side surfaces to which the locking protrusions 10a, 11a of the side units 10, 11 fit.

As shown in FIG. 4, the side unit 10 is provided with a locking projection 10a in the longitudinal direction on the upper part of the inner surface of the substantially flat shaped member.
A locking projection 10b for supporting the lower side of the core unit 9 is provided below the locking projection 10a, and a screw 17 for coupling with the cover unit 13 is provided below the outer surface. A groove 10c is formed for mounting the groove.

The side unit 11 has the same basic shape as the side unit 10 described above, except that a horizontal protruding piece 11d which bends 90 degrees inward is provided at the upper end of the substantially flat shaped member, and the tip of this horizontal protruding piece 11d is provided. The locking projection 10a and the locking projection 10b are provided with a locking projection 11a and a locking projection 11b, and the lower portion is provided with a groove 11c similar to the groove 10c.

As shown in FIG. 6, the edge unit 12 has a groove 12a in which the cover unit 13 is fitted, formed at the lower part of the inner side surface, and a lower end provided with a locking projection 12b which locks to the ceiling plate 2. And screws 17 at the top for connecting to the side units 10 and 11.
The screw hole 12c through which is inserted is formed vertically long.

As shown in FIG. 7, the cover unit 13 has a locking projection 13a projecting from one end thereof into the groove 12a of the edge unit 12 at an angle of 90 degrees. The unevenness 13b is formed.

Next, a method for assembling such a unit into a box for storing the screen 1 and a method for disposing the assembled box in a space between the slab and the ceiling will be described. 1 and 2 show the case of the electric screen 1, in which the core unit 9, the side units 10, 11 and the edge unit are used.
12, using the cover unit 13. First, the locking projections 10a and 11a of the side units 10 and 11 are inserted into the grooves 9c on both sides of the core unit 9, and the side units 10 and 11 are mounted on both sides of the core unit 9, and the whole is opened on the lower surface. Assemble into a U-shaped cross section with the part 7 formed.

Next, the edge unit 12 is brought into contact with the inner side surfaces of the side units 10 and 11, and the screws 17 are inserted into the screw holes 12c at the locations of the grooves 10c and 11c so that the edge unit 12 is connected to the side units 10 and 11. Temporarily fix.

In this state, the screen 1 wound on the take-up reel 19 is fixed with the bolt nut 14 attached to the groove 9a of the core unit 9 and suspended from the core unit 9, and the core unit 9 and the side unit 10 are suspended. , 11, and the edge unit 12 are stored in a box.

On the other hand, an L-shaped suspension fitting 15 is fixed to a lower end of a suspension bolt 18 having an upper end embedded in a lower part of the slab 5 by a bolt, and a bolt nut mounted on a groove 9b of the core unit 9 is provided.
At 16, the core unit 9 is fixed to the hanging bracket 15. As a result, the box containing the screen 1 is placed in the space above the ceiling plate 2 in a state of being suspended from the slab 5 via the suspension fittings 15.

In this state, the screw 17 is slightly loosened and the edge unit 12 is slid up and down so that the locking projection 12b at the lower end of the edge unit 12 abuts on the edge of the opening 3 formed in the ceiling plate 2. Then, the screw 17 inserted into the screw hole 12c formed in the elongated hole is tightened and locked. Thereby, the lower end of the box matches the position of the ceiling plate 2.

Finally, the locking projection 13a of the cover unit 13 is fitted to the groove 12a of the edge unit 12, and a part of the opening 7 is closed and closed by the cover unit 13.

When the screen 1 is not used, the screen 1 is wound around a take-up reel 19 and stored in a box.
At the time of use, it is pulled out from the opening 7 and hung.

The width in the short direction can be changed by selecting the side units 10 and 11 to be used. For example, when a manual screen is stored as shown in FIG. When the units 10 are combined to form a narrow one and a wide box is to be formed as shown in FIG.
Combine the side units 11 having d.

When the cover unit 13 is in the way, as in the case where the screen 1 is used at an angle as shown in FIG. 9, the cover unit 13 can be removed by removing the locking projection 13a from the groove 12a. Can be easily removed from the edge unit 12.

[0031]

As described above, in the screen case of the present invention, the storage box is formed by a combination of the core unit, the side unit, and the edge unit. By combining other units, boxes of more sizes having different lengths in the transverse direction can be formed.
In addition, by adjusting the mounting position of the edge unit with respect to the side unit, the height can be adjusted without changing the mounting position of the box itself. Therefore, the lower end of the edge unit is formed in the opening for the screen drawer formed in the ceiling plate. Matched to the edge.

Further, the adjustment of the mounting height position of the edge unit may be performed only by sliding the edge unit up and down, and the fixing of the edge unit may be performed only by inserting a screw into the long hole and connecting to the side unit. Easy to work with.

Further, since the cover unit for closing a part of the opening for drawing out the screen is detachably fitted to the edge unit, it can be easily removed, for example, when the cover is in the way when the screen is used. .

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a screen case of the present invention.

FIG. 2 is a perspective view showing a first embodiment of a screen case of the present invention.

FIG. 3 is a side view of a core unit, which is a main part, showing an embodiment of the screen case of the present invention.

FIG. 4 is a side view of a side unit which is a main part of the embodiment of the screen case of the present invention.

FIG. 5 is a side view showing another example of the side unit which is a main part of the embodiment of the screen case of the present invention.

FIG. 6 is a side view of an edge unit which is a main part of the embodiment of the screen case of the present invention.

FIG. 7 is a side view of a cover unit which is a main part of the embodiment of the screen case of the present invention.

FIG. 8 is a side view showing a second embodiment of the screen case of the present invention.

FIG. 9 is a side view showing a third embodiment of the screen case of the present invention.

FIG. 10 is a perspective view of the screen case of the present invention installed on the ceiling.

FIG. 11 is a vertical sectional front view of a conventional screen case.

FIG. 12 is a side view of a conventional screen case.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Screen 2 ... Ceiling board 3 ... Opening 4 ... Box body 4a ... Side plate 5 ... Slab 6 ... Hanging bolt 7 ... Opening 8 ... Lid 9 ... Core unit 9a, 9b, 9c ...
Grooves 10, 11 Side units 10a, 11a Locking projections 10b, 11b Locking projections 10c, 11c Grooves 11d Horizontal projections 12 Edge units 12a Grooves 12b Locking projections 12c Screw hole 13 ... Cover unit 13a ... Locking projection 13b ... Unevenness 14 ... Bolt nut 15 ... Hanging bracket 16 ... Bolt nut 17 ... Screw 18 ... Hanging bolt 19 ... Take-up reel

Claims (5)

(57) [Claims] 1. A screen unit which accommodates a screen suspended by a hanging bracket attached to the lower surface of a slab under a ceiling, a core unit supporting the screen and fixed to the hanging bracket, and fitted on both sides of the core unit. A storage box is constituted by a combination of a side unit to be combined and an edge unit whose mounting height is adjustable at a lower portion of the side unit, and a lower edge of the edge unit is formed on a ceiling plate and an opening edge for drawing out a screen. A screen case characterized in that the screen case is locked. 2. The screen case according to claim 1, wherein the edge unit is slidably assembled up and down with respect to the side unit, and is connected to the side unit with a screw through a vertically long hole formed in the edge unit. 3. The screen case according to claim 1, wherein the side unit is a substantially flat plate-shaped member having a fitting portion to the core unit at an upper portion. 4. The side unit is mounted on an upper portion of a substantially flat member.
2. A horizontal projection that bends at 90 degrees in the longitudinal direction, and a fitting portion to the core unit is formed at the tip of the horizontal projection.
The described screen case. 5. The screen case according to claim 1, wherein a cover unit for closing a part of an opening for drawing out the screen is detachably fitted to the edge unit.