JPH11160795A - Screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correctly set an aspect ratio in the case of pulling out a screen in a lateral direction and stretching it by providing a display means for displaying the pulling-out amount of the screen. SOLUTION: This device is provided with a display 33 for displaying the aspect ratio at the upper edge part on the back surface side of the screen 10. Three displays such as 4:3, 16:9 and 2.4:1 are formed at positions equivalent to the corresponding pulling-out amount of the screen 10 as the display. Therefore, the screen 10 is stretched in the correct aspect ratio by setting the pulling- out amount of the screen 10 by the display 33 in accordance with the aspect ratio of a video projected and formed on the screen 10. Three displays 33 are aligned by setting the side surface of a speaker box 11 as reference, so that the pulling-out amount of the screen 10 is surely set by aligning the corresponding display with the side surface of the speaker box 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen device, and more particularly, to a screen device in which a screen is pulled out from a screen storage portion in a lateral direction, and a front end portion of the screen is fixed to an opposite screen fixing portion and stretched. About.

[0002]

2. Description of the Related Art A screen-integrated speaker system in which a screen is drawn out and stretched between a pair of left and right speaker boxes in the horizontal direction has been disclosed by the present inventors in Japanese Patent Application No. Hei.
No. 335796.

[0003] A screen device constituted by such a system is an audio-visual system suitable for projecting an image by, for example, a video projector and reproducing sound from left and right speaker boxes.

[0004]

In such a horizontal screen type screen device, the aspect ratio of the screen can be changed by the amount of the screen drawn out. Therefore, in order to adjust the aspect ratio of this type of screen device, a method of measuring the length by a length measuring means when pulling out the screen, or adjusting the amount of the screen drawn by actually projecting the screen onto the screen is adopted. Had been. However, according to such a method, there is a problem that not only takes time but also that the correct aspect ratio cannot always be set accurately.

[0005] Further, such a horizontal drawing type screen is wound up by a spring built in a screen accommodating portion, but in the case of a screen drawn out in a horizontal direction, the weight is larger than the screen. To join,
Due to this, there is a tendency that the film is wound in a state of being shifted in the axial direction of the winding shaft, and particularly, it is difficult to wind both ends in the axial direction neatly, or that the screen is not correctly inserted into the case of the screen storage unit. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is possible to set an aspect ratio correctly when a screen is stretched by being pulled out in a horizontal direction, and a screen drawn out is provided. It is an object of the present invention to provide a screen device in which when stored in a screen, winding disturbance due to displacement in the axial direction is eliminated.

[0007]

According to the present invention, there is provided a screen apparatus wherein a screen is drawn out from a screen storage portion in a lateral direction, and a front end portion of the screen is fixed and stretched to an opposite screen fixing portion. The present invention relates to a screen device provided with display means for displaying the amount of the screen drawn out.

[0008] The display means may be provided on the rear side of the screen and at the upper edge. Further, the display means may be constituted by a rotating body interlocked with a winding shaft of the screen storage unit. Further, the display by the display means may be performed at an aspect ratio corresponding to the amount of drawing. Further, the display according to the aspect ratio is 4: 3, 16: 9, and 2.
It may be 4: 1.

Still another aspect of the present invention is a screen device in which a screen is pulled out from a screen storage portion in a horizontal direction, and a front end portion of the screen is fixed and stretched to an opposite screen fixing portion. And a mark for indicating a position in the axial direction when the film is wound into the screen accommodating portion.

[0010] The mark may be a mark indicating a position of an upper edge or a lower edge when the screen is wound. Further, the mark may be provided on a cabinet of a speaker box provided with the screen storage unit. Alternatively, the mark may be provided on a rotatable display panel, and the display panel may be rotated to move to a display position to wind up the screen.

In a preferred embodiment of the present invention, in view of the fact that the aspect ratio of the screen is changed by the amount of the screen drawn out, the screen device of the horizontal drawing type uses a mark on the screen surface as a guide of the amount of the screen drawn out. In this manner, the optimum screen drawing length or drawing position can be easily set.

According to another aspect of the present invention, in a screen device which is pulled out in a horizontal direction, when automatic winding is performed by a spring built in a screen storage portion, the screen device is wound while being shifted in the axial direction. To prevent
A mark indicating the position of the upper edge or the lower edge of the screen is provided near the screen winding shaft so that winding can be performed correctly. This is to prevent wrinkles and scratches from being generated on the screen.

[0013]

1 to 5 show a screen device according to a first embodiment of the present invention. In this embodiment, as shown in FIGS. 1 to 3, the screen 10 is extended between the left and right speaker boxes 11 and 12. The left and right speaker boxes 11 and 12 are provided with a low-frequency speaker 13, a medium-frequency speaker 14, and a high-frequency speaker 15, respectively. The screen 10 stretched between the left and right speaker boxes 11 and 12 is formed of a bead screen in which glass beads are arranged on the surface of a glass cloth.

One of the speaker boxes, for example, the left speaker box 11, is provided with a screen storage portion 19, and the screen storage portion 19 winds and stores the screen 10. Note that a winding spring for automatically winding the screen 10 is built in the screen storage portion 19. On the other hand, a drawer shaft 20 is fixed to a portion of the screen 10 at the leading end in the drawer direction, as shown in FIG. The receiving members 21 and 22 are respectively hooked and fixed.

The drawer shaft 20 is formed of a hollow aluminum pipe, and the tip of the screen 10 is fixed to such a pipe.

As shown in FIG. 4, the lower end of the draw-out shaft 20 is formed in a tubular portion 26, and a contact member 27 is slidably held in the tubular portion 26. Further, a coil spring 28 is built in the cylindrical portion 26, and the contact member 27 is slidably urged by the coil spring 28 in the pushing direction, that is, downward. On the other hand, the upper end portion of the draw shaft 20 is not specially designed, and has a structure in which the opening at the upper end of the aluminum pipe is closed.

Next, the operation of extending the screen 10 will be described. When the screen 10 wound and stored in the screen storage portion 19 of the left speaker box 11 is to be pulled out, it is sufficient to hold the drawer shaft 20 on the tip side by hand and pull it out in the lateral direction. Then, the contact member 27 on the lower end side of the drawer shaft 20 is pressed downward while being pressed against the upper surface of the lower receiving member 22 of the right speaker box 12. Then, the contact member 27 penetrates into the cylindrical portion 26 while deforming the coil spring 28, thereby shortening the length of the drawer shaft 20 in the axial direction.

Therefore, in such a state, the drawer shaft 2
0 is inserted into the recess of the receiving member 21 of the speaker box 12. Thereafter, by releasing the force for pushing the drawer shaft 20 downward, the drawer shaft 20 is fixed to the right speaker box 12 while being received by the upper and lower receiving members 21 and 22.

As described above, in the screen device according to the present embodiment, as shown in FIGS. 1 to 3, the left speaker box 11 is provided with the screen storage portion 19, and the opposite speaker box 12 is provided with the front end of the screen 10. A fixing portion for fixing the drawer shaft 20 on the side is provided. Particularly, the lower end portion of the drawer shaft 20 is fixed as shown in FIG.

That is, the drawer shaft 20 on the front end side of the screen 10 is fixed by the upper receiving member 21 and the lower receiving member 22 provided in the right speaker box 12. At this time, an abutting member 27 is slidably attached to a lower end portion of the draw-out shaft 20, and is urged in a pushing direction by a coil spring 28, thereby adopting an extendable structure.

According to such a configuration, the lower end portion of the drawer shaft 20 is pressed against the receiving member 22 of the right speaker box 12 so that the contact member 27 is pushed into the tubular portion 26. 20 can be inserted into the recess of the upper receiving member 21, thereby facilitating the work of fixing the tip of the screen 10 of the horizontal drawing type and greatly improving the workability. Will be.

In the state where the screen 10 is stretched as shown in FIG. 4, the lower receiving member 22 into which the contact member 27 at the lower end of the drawer shaft 20 is inserted is formed with a sufficient recess area. Therefore, by displacing the contact member 27 in the recess of the receiving member 22, it becomes possible to remove distortion, wrinkles, and the like of the screen 10.

Next, in such a screen device,
A configuration for setting the drawing amount or the aspect ratio of the screen 10 will be described. As shown in FIGS. 1 to 3, the screen device includes a pair of left and right speaker boxes 11 and 1.
The screen 10 is stretched between the two,
The screen 10 is pulled out of the screen storage portion 19 of the left speaker box 11 and the right speaker box 1 is pulled out.
2, the screen 10 is stretched.

In the screen device in which the screen 10 is stretched as described above, the screen 10
Since the vertical dimension of the screen 10 is predetermined, the aspect ratio of the screen can be changed depending on the amount of the screen 10 pulled out.
Therefore, as shown in FIG. 5, a display 33 for displaying the aspect ratio is provided on the back side of the screen 10 and at the upper edge thereof.

Here, as display, 4: 3, 16: 9,
And the display 33 of 2.4: 1 is formed at a position corresponding to the corresponding withdrawal amount of the screen 10. Note that 4: 3 is the same ratio as the aspect ratio of a normal television receiver. The 16: 9 display has the same aspect ratio as the wide-screen television screen. In contrast, the 2.4: 1 display 33 has the same aspect ratio as the cinemascope.

Therefore, by setting the drawing amount of the screen 10 by the display 33 according to the aspect ratio of the image projected and formed on the screen 10, it is possible to stretch the screen 10 with the correct aspect ratio. Become.

Since the three displays 33 shown in FIG. 5 are aligned with the side of the speaker box 11 as a reference, the drawn-out amount of the screen 10 can be reliably set by adjusting the corresponding display to the side of the speaker box 11. It becomes possible to do. Although the configuration shown in FIG. 5 is provided on the upper edge on the back side of the screen 10, it is not always necessary to provide it on the upper edge, and it may be provided on the lower edge or any other position. Or screen 1
0 may be provided so as to be inconspicuous at some positions on the front side.

By forming such a display 33 on the screen 10, it is possible to easily set the optimum amount of the screen 10 to be drawn out, and the vertical and horizontal screens which are the features of the screen of the horizontal drawing type are provided. It is possible to provide a screen device that is easier to use by making full use of the feature that the ratio can be arbitrarily changed.

Next, another embodiment will be described with reference to FIGS. In this embodiment, a drive gear 38 is mounted on the upper end of a take-up shaft 37 of the screen storage portion 19 provided in the left speaker box 11, and a display gear 39 meshing with the drive gear 38 is mounted. A display 40 for displaying the aspect ratio is provided on the upper end face of the display gear 39. Such a display is visually confirmed through a window 41 formed on the upper surface of the speaker box 11.

That is, in this embodiment, the screen 1
Instead of the display 33 of the aspect ratio on 0, the amount of pulling out of the screen 10 is detected and displayed from the rotation amount of the winding shaft 37 of the screen storage unit 19 that is wound by a spring incorporating the screen 10. It was done. The screen winding shaft 37 rotates when the screen 10 is pulled out. This rotation is performed by the drive gear 38 to display gear 39.
The aspect ratio is displayed in the window 41 by the display of the display gear 39. According to such a configuration, the display corresponding to the predetermined withdrawal amount is displayed on the window 4.
1 will be confirmed. Here, the display 40 of the aspect ratio provided by the display gear 39 is the same as the display 33 of the aspect ratio provided on the screen 10.
There are three types of display: 4: 3, 16: 9, and 2.4: 1.

Next, another embodiment will be described with reference to FIGS. In this embodiment, when the drawn-out screen 10 is wound around the screen storage portion 19 of the left speaker box 11, the screen 10 is correctly wound without being displaced in the axial direction with respect to the winding shaft 37 of the screen storage portion 19. It is something that can be done.

The screen 10 is stretched between the left and right speaker boxes 11 and 12 as shown in FIG. Here, a mark 45 is provided at a predetermined position on the front side of the drawer opening 44 provided in the cabinet of the left speaker box 11 in which the screen storage section 19 is provided. The mark 45 is a mark for preventing the upper edge of the screen 10 from being shifted when the screen 10 is automatically wound by a spring built in the screen storage unit 19.

As shown in FIGS. 8 and 9, the screen 1 is stored in the screen storage 19 of the speaker box 11.
0, the upper edge of the screen 10 is held by the hand while holding the drawer shaft 20 by hand.
The screen 10 is guided so as to be wound into the screen accommodating portion 19 while being aligned with the mark 45. As a result, the screen 10 can be held horizontally and can be wound around the screen storage portion 19 without shifting in the axial direction.

Therefore, by simply providing such a simple mark 45, the screen 10 can be correctly wound around the screen housing portion 19, and in particular, it is prevented that both ends in the axial direction are irregularly disturbed. As a result, it is correctly stored in the screen storage unit 19. Further, since the screen 10 can be correctly wound into such a screen storage portion 19, wrinkles and scratches do not occur due to the winding of the screen 10.

FIG. 10 shows a modification. In this modification, the drawer opening 44 of the speaker box 11 is used.
Mark 4 on the surface of the side plate of the cabinet provided with
5 is formed. Also in such a configuration, the screen 10 is correctly housed in the screen housing part 19 by winding the screen 10 on the winding shaft 37 with the upper edge of the screen 10 aligned with the mark 45. The same operation and effect as those of the embodiment can be obtained.

FIG. 11 shows still another embodiment. This embodiment is directed to a display panel 4 provided with a mark 45.
6 is rotatably mounted on a cabinet of the speaker box 11 by a support shaft 47.

When the screen 10 is stored in the screen storage section 19, the display plate 46 is rotated from the storage position shown by the chain line to the display position shown by the solid line as shown in FIG. At this time, a click mechanism (not shown) locks the display panel 46 at a position where the display panel 46 is rotated by 90 °. Therefore, when the screen 10 is wound by a spring built in the screen storage portion 19 in such a state, the screen 10 is wound so that the upper edge of the screen 10 coincides with the mark 45 of the display panel 46, so that the screen 10 The film is correctly wound on the winding shaft 37 of the screen storage unit 19 in a state where both ends in the axial direction are properly aligned. Moreover, since the mark 45 is formed on the display plate 46, the screen storage portion 19 is formed.
The vertical position of the screen 10 can be regulated at a position away from the take-up shaft 37, and the screen can be taken up more correctly.

[0038]

As described above, the present invention relates to a screen device in which a screen is pulled out from a screen storage portion in a horizontal direction, and a front end portion of the screen is fixed and stretched to an opposite screen fixing portion. The display means for displaying the amount of withdrawal is provided.

Therefore, it is possible to know the drawing amount of the screen by the display means, and it is possible to stretch the screen with an aspect ratio corresponding to the display by the display means.

According to the structure in which the display means is provided on the rear side of the screen and at the upper edge, the screen is set and stretched by the display means provided at the upper edge of the rear side. Becomes possible.

When the display means is constituted by a rotating body interlocking with the winding shaft of the screen storage section, the aspect ratio can be set in accordance with the display constituted by such a rotating body.

According to the configuration in which the display by the display means is performed at the aspect ratio corresponding to the amount of draw-out, the screen is stretched at the corresponding aspect ratio by drawing at the amount of draw-out that matches the display by the display means.

The display according to the aspect ratio is 4: 3, 16: 9,
According to the configuration of 2.4: 1 and 2.4: 1, it is possible to stretch the screens at these aspect ratios.

Another aspect of the present invention is a screen device in which a screen is pulled out from a screen storage portion in a horizontal direction and a screen tip is fixed to an opposite screen fixing portion to be stretched. A mark is provided to indicate the position in the axial direction when winding up in the storage section.

Therefore, according to such a configuration, by winding the screen in accordance with the mark, it is possible to correctly wind the screen in the screen storage unit with both ends in the axial direction aligned.

According to the configuration in which the mark is a mark indicating the position of the upper edge or the lower edge when the screen is wound, the upper edge or the lower edge of the screen is wound in accordance with the mark, so that the screen is stored in the screen accommodating portion. Is stored correctly.

According to the configuration in which the mark is provided on the cabinet of the speaker box provided with the screen storage section, the screen is correctly stored in the screen storage section by winding the screen in accordance with the mark on the cabinet. .

According to the structure in which the mark is provided on the pivotable display plate and the display plate is rotated to move to the display position and wind the screen, the display plate is rotated to the display position. By moving and winding the screen in accordance with the mark, the screen can be correctly wound into the screen storage portion.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a screen device according to a first embodiment.

FIG. 2 is a plan view of the screen device.

FIG. 3 is a front view of the screen device.

FIG. 4 is a main part front view showing the fixing of a screen drawer shaft of the screen device.

FIG. 5 is a rear view of the screen showing the display of the aspect ratio.

FIG. 6 is a cross-sectional view of a speaker box showing an aspect ratio display according to another embodiment.

FIG. 7 is a vertical sectional view of the speaker box.

FIG. 8 is a front view showing the storing operation of the screen.

FIG. 9 is an enlarged front view of a main part showing a display of a mark used for storage.

FIG. 10 is an enlarged front view of a main part showing a mark of a modified example.

FIG. 11 is an enlarged front view of a main part showing a configuration of a mark according to another embodiment.

[Explanation of symbols]

10 ‥‥ screen, 11 ‥‥ speaker box (left), 12 ‥‥ speaker box (right), 13 ‥‥ bass speaker, 14 ‥‥ middle speaker, 15 ‥‥ treble speaker, 19 ‥‥ screen storage Part, 20 ° extraction shaft, 21 ° receiving member (upper), 22 ° receiving member (lower), 26 ° cylindrical portion, 27 ° abutting member, 28 °
Coil spring, 29 ‥‥ holding bracket, 33 ‥‥ display (aspect ratio), 37 ‥‥ winding shaft, 38 ‥‥ drive gear, 39 ‥‥
Display gear, 40 ° display (aspect ratio), 41 ° window, 4
4mm drawer opening, 45mm mark, 46mm display board, 47mm spindle

Claims (9)

[Claims] 1. A screen device in which a screen is pulled out from a screen storage portion in a horizontal direction, and a front end portion of the screen is fixed and stretched to a screen fixing portion on an opposite side. A screen device provided with display means. 2. The display device according to claim 1, wherein said display means is provided on a rear side of said screen and at an upper edge thereof.
A screen device according to claim 1. 3. The screen device according to claim 1, wherein said display means is constituted by a rotating body interlocked with a winding shaft of said screen storage unit. 4. The screen device according to claim 1, wherein the display by said display means is performed at an aspect ratio corresponding to a drawout amount. 5. The display according to the aspect ratio is 4: 3, 16:
9. and 2.4: 1.
A screen device according to claim 1. 6. A screen device in which a screen is pulled out from a screen storage portion in a horizontal direction, and a front end portion of the screen is fixed and stretched to an opposite screen fixing portion, wherein the drawn screen is stored in the screen storage portion. A screen device characterized by providing a mark for indicating a position in the axial direction at the time of winding on a part. 7. The screen device according to claim 6, wherein the mark is a mark indicating a position of an upper edge or a lower edge when the screen is wound. 8. The screen device according to claim 6, wherein said mark is provided on a cabinet of a speaker box provided with said screen storage portion. 9. The display device according to claim 6, wherein said mark is provided on a pivotable display plate, and said display plate is rotated to move to a display position to wind up the screen. A screen device according to claim 1.