JP3387748B2 - Screen device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a school, various classrooms,
Used mainly in ceilings and wall surfaces in office conference rooms and supported by a tripod stand.
It is a screen for displaying images from HP, video projectors, etc., with a map, human figure, characters,
The present invention relates to a double-sided screen device expressing symbols and the like.

[0002]

2. Description of the Related Art A screen capable of utilizing the front and back sides has already been disclosed in the application of Japanese Patent Application No. 7-119352 filed by the present applicant. The application further discloses means for holding the screen surface in an inclined state under tension. That is, a bracket is attached to the suspension pipe (1) installed on the ceiling so as to rotate in the horizontal direction at any time and to rotate in the vertical direction when a load larger than a predetermined load is applied, and the bracket is screened. It is fixed to the center of the winding tube (3), and is inward from the center of each of the ends of the winding tube (3) and the ends of the tension weight material (12) at the bottom of the screen. The supporting frame (6) which is bent in the direction of the arrow is pivotally attached (Fig. 6).

[0003]

The above-mentioned conventional tension and tilt holding means for a screen has no problem in terms of the function of tilting and holding the screen in a tensioned state, but a pair of bending supporting frames. Due to the structure of the frame 6, there are disadvantages that the cost is high and the weight is heavy. Therefore, the present invention provides a screen device which has a very simple structure and has the same screen tension / tilt holding function as that of the conventional one, and which is lightweight and can be supplied at a low price and can be used on both front and back sides. The challenge is to provide.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a screen device provided with a screen that can be used on both front and back sides, and is a suspension pipe installed on the ceiling and a suspension pipe installed on the wall surface. A screen case can be horizontally rotated at the end of the screen support means such as an arm and can be vertically rotated when a load equal to or more than a predetermined load is applied .
It is mounted so that it can be stopped at an arbitrary position by removing a load equal to or more than the predetermined load, and holds the screen supporting means end, the center of the back surface of the screen case, or the rotating state. In the back of the screen case
On the inclined support fitting installed at the center, install one end locking means of the tension bar of a length corresponding to the vertical dimension when the screen is pulled out to the maximum, and at the other end of the tension bar, the bottom of the screen is attached. A screen device provided with a locking means for the central part of the tension weight pipe, and a screen device equipped with a screen that can be used on both the front and back sides.
At the screen case support part of the support stand such as a tripod stand and the center of the upper end of the screen, the end locking means of the tension rod of the length corresponding to the vertical dimension when the screen is fully drawn out is installed. The above-mentioned problems have been solved by a screen device comprising the following.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The attached drawings show a preferred embodiment of the present invention. FIG. 1 is a front view when the screen is pulled out most, FIG. 2 is a side view thereof, and FIG. 3 is a rear view thereof. It is a figure. In the figure, reference numeral 1 denotes a suspension pipe vertically installed on a ceiling 2, and a rotary fitting 3 which is rotatable in a horizontal direction with respect to the suspension pipe 1 is attached to a lower end portion thereof.

On the rotary fitting 3, an inclined support fitting 5 fixed to the center of the screen case 4 is installed. With this structure, the screen case 4 can rotate in the horizontal direction around the hanging pipe 1 as a unit with the inclined support fitting 5 and the rotating fitting 3. The inclined support fitting 5 is installed via the support shaft 6 so as to be vertically rotatable with respect to the rotary fitting 3. At that time, a high friction material such as leather or plastic is sandwiched in the contact surface between the lower end portion of the rotating metal fitting 3 and the inclined support metal fitting 5, and the screen case 4 and the screen which are hung on the inclined support metal fitting 5 at the time of flattening.
The tilt support fitting 5 does not rotate under a load such as the load 7 and is set to rotate only when a more load is applied.

The screen case 4 is for winding and storing the screen 7, and like the conventional case, it has an automatic winding means with a stopper such as a spring. As this automatic wrapping means, one generally used in blinds or the like can be used as it is. The screen is generally made of polyvinyl chloride on the surface of the base cloth.
The back surface 7b of the screen 7 in the present invention is formed by arranging a white reflective surface such as a resin and the like, and back-coating a black background or the like on the back side of the base cloth, or by pasting a cloth such as a black background. Includes maps of Japan, world maps, Japanese syllabary, alphabets, keyboards, music symbols, human body diagrams, traffic signs, and other figures, letters, symbols, etc. suitable for use in schools, various classrooms, offices, etc. Expressed by printing, etc.

On the mounting portion of the inclined support fitting 5 to the screen case 4 or on the rear surface of the screen case 4,
An insertion tube 9 for inserting the upper end of the tension rod 8 is installed. The tension rod 8 has a length corresponding to the vertical dimension when the screen 7 is pulled out to the maximum. At the lower end of the tension rod 8, hook means for hooking to a hooking portion 11 provided at the center of the tension weight pipe 10 at the lower end of the screen 7 is provided. As the tension rod 8, a hook rod 12 generally used for drawing out a screen can be used, and in this case, the hook rod 12 becomes the tension rod 8.

As a means for locking one end of the tension rod 8, an annular member may be attached instead of the insertion tube 9. In this case, hook means will be installed at both ends of the tension rod 8.

The screen according to the present invention is the same as the general one in terms of the usage of the front surface side, but unlike the general one, the back surface can be used. That is, when the white reflective surface 7a is not used, the structure below the rotating metal fitting 3 is rotated 180 degrees about the hanging pipe 1 so that the back surface 7b faces the front side. Maps, characters, symbols, pictures, etc. are displayed on the back surface 7b as described above, but they are selected in advance according to the intended use. That is, a map of Japan or the world for general classrooms of schools, music symbols for music rooms, Japanese syllabary charts for kindergartens, traffic signs for driving schools.

In the screen device according to the present invention,
After the screen 7 is fully pulled out using the tension rod 8 (hook rod), one end of the tension rod 8 is fitted into the insertion tube 9 and the hook means is hooked on the hook portion 11. Then, the screen 7 is tilted at a desired angle via the tilt holding metal fitting 5. Thus, when viewing either the front side or the back side, the inclined state is maintained by being supported by the tension rod 8 so that it is easy to see. When not using both the front and back sides, the tension rod 8 may be removed and the entire screen 7 may be wound into the screen case 4. Although the tension rod 8 can be seen in the center when the back surface 7b is viewed, since the tension rod 8 is only one and is thin, it does not interfere with normal viewing.

The insertion tube 9 and an annular member or other hooking member which replaces the insertion tube 9 are the hanging pipe 1 serving as a screen supporting means.
It may be arranged so as to be rotatable at the lower end of the. In this case, the tension rod 8 is always located on the rear side of the screen 7 (to the viewer, the back side of the screen), and the tension rod 8 is completely in the way when the back surface 7b of the screen 7 is seen. I won't.

Although the illustrated example has a construction in which the screen is suspended from the ceiling, it goes without saying that a construction in which the screen is suspended from an arm installed horizontally on the wall surface can also be adopted. In that case, the structure of the rotating metal fittings 3 and below is installed at the end of the arm.

In a screen support stand such as a tripod stand, usually, a screen case is removably installed in the lower half of the stand, and the screen is pulled out from there to hook at the upper end of the stand. The hooking portion 11 of the tensioning pipe is locked to the locking means such as the above to tension the screen. In the present invention, however, the screen is inserted into the screen case supporting portion of the stand. The insertion cylinder 9 or the hook member is installed, and the tension rod 8 is arranged between the insertion cylinder 9 and the hook portion 11. This ensures that the screen tension is maintained.

[0015]

The present invention is as described above, and the screen device according to the present invention has a simple structure and can be supplied at a relatively low cost, and various drawings, characters, pictures, etc. can be expressed on the back side. Therefore, the user can select the screen in which a desired drawing or the like is expressed according to the purpose and use it on the front and back sides, and can tilt it at an angle that is easy to see when looking at either side. effective.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a screen is most pulled out in a screen device according to the present invention.

FIG. 2 is a side view showing a state in which the screen is most pulled out in the screen device according to the present invention.

FIG. 3 is a rear view showing a state in which the screen is most pulled out in the screen device according to the present invention.

FIG. 4 is a diagram showing a configuration near a screen case in the screen device according to the present invention.

FIG. 5 is a diagram showing a configuration example of a hook rod.

FIG. 6 is a front view of a conventional rotary tilt type screen.

[Explanation of symbols]

1 hanging pipe 2 ceiling 3 rotating metal fittings 4 screen cases 5 Tilt support bracket 6 spindles 7 screen 7a White reflective surface 7b back side 8 tension rods 9 insertion tube 10 Tension weight pipe 11 Hook 12 hook rod

Claims (6)

(57) [Claims] 1. A screen device provided with a screen which can be used on both front and back sides, wherein the screen pipe is provided at the end of a screen support means such as a hanging pipe installed on a ceiling or a hanging arm installed on a wall surface. The screen case can be rotated in the horizontal direction and can be rotated in the vertical direction when a load larger than a predetermined load is applied, and the load larger than the predetermined load is removed.
It is attached so that it can be stopped at any position by removing it, and the end of the screen supporting means and the screen are attached.
Ketimine - wherein for holding the rear face center portion or the rotation state of the scan
On the inclined support fitting installed in the center of the back surface of the screen case, install one end locking means of the tension rod of a length corresponding to the vertical dimension when the screen is pulled out to the maximum. A screen device provided with locking means for the central part of the tension weight pipe. 2. A screen device having a screen which can be used on both front and back sides, the screen including a hanging pipe installed on a ceiling and a hanging arm installed on a wall surface. When a rotating metal fitting is attached to the end portion of the supporting means so as to be rotatable in the horizontal direction, and an inclined supporting metal fitting fixed to the center of the screen case is applied to the rotating metal fitting with a load larger than a predetermined load. Is rotatable in the vertical direction to the predetermined load
Stop at any position by removing the above load
Mounted in the resultant so that the subscription - down support means end, the subscription - ketimine - on the back central portion or the inclined support bracket of the scan, subscriptions - down of the length of the tension corresponding to the longitudinal dimension of top Obiki Desi A screen device in which one end locking means for the rod is installed, and the other end of the tension rod is provided with a locking means for the central portion of the tension weight pipe on the lower side of the screen. 3. A screen device having a screen which can be used on both front and back sides, wherein the screen case support part of a support stand such as a tripod stand and the center part of the upper end of the screen are respectively provided. A screen device provided with end locking means of a tension rod having a length corresponding to the vertical dimension when the screen is pulled out to the maximum. 4. The screen device according to claim 1, 2 or 3, wherein the end locking means of the tension rod is an insertion tube. 5. The screen device according to claim 1, wherein the end locking means of the tension rod is an annular member or other hooking member. 6. The screen device according to claim 1, wherein the tension bar is a hook bar for drawing out a screen.