JP2009271310A - Screen for projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen for a small-sized projector, having excellent portability, and attaining excellent economical efficiency by decreasing the number of members. <P>SOLUTION: In this screen for the projector, which is formed by providing a screen member on a support, the support and a connecting member are connected to each other, the connecting member and clamping members are connected to each other, and the screen member is held between the clamping members. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a projector screen.

The projector device can obtain information of a large screen size by projecting information from a video source such as a video deck, a laser disk, or a personal computer onto a screen or a wall. However, since the conventional projector device and projector screen have been aimed at pursuing a large screen and high image quality, the storage property has not been considered much.
Therefore, a projector screen device that is excellent in storability has been disclosed (see, for example, Patent Document 1).

The projector screen device described in Patent Document 1 is formed by connecting at least one side of a screen to a winding unit. The winding unit winds up the screen.

Japanese Patent Laid-Open No. 10-228065

In recent years, since the miniaturization of projector devices has progressed, miniaturization of projector screen devices is desired. However, in the invention described in Patent Document 1, it is necessary to store the screen by the winding unit. Therefore, in the conventional technology, the projector screen device itself tends to be large, and a small projector screen with excellent portability has not been obtained.
In addition, the invention described in Patent Document 1 requires a plurality of members such as a case, a speaker, a carrying handle, and a screen overturn prevention arm in addition to the winding unit. It was.

The present invention solves the above problems. That is, an object of the present invention is to provide a small projector screen having excellent portability. Another object of the present invention is to provide a small projector screen which is excellent in economic efficiency by reducing the number of members.

The present invention solves the above problems by the following technical configuration.

(1) A projector screen in which a screen member is provided on a support, wherein the support and a connecting member are connected, and the connecting member and a clamping member are connected, and the screen member Is sandwiched between the clamping members.
(2) The projector screen according to (1), wherein the sandwiching member is formed so as to sandwich both longitudinal ends of the screen member.
(3) The projector screen according to (1) or (2) above, wherein a spine portion is provided on the support.
(4) The projector screen according to (2), wherein one end of the screen member in the short direction is sandwiched by the sandwiching member.
(5) The projector screen according to (2), wherein both end portions of the screen member in a short direction are sandwiched between the clamping members.

ADVANTAGE OF THE INVENTION According to this invention, the small screen for projectors excellent in portability can be provided.
In addition, according to the present invention, it is possible to provide a small projector screen with excellent economy by reducing the number of members.

Hereinafter, the present invention will be described with reference to the drawings. In the present invention, as shown in FIG. 1, FIG. 8, FIG. 15, FIG. 17 and the like, the screen is in a straight line state (a state in which an image can be projected from the projector device and used as a projector screen). State. In the present invention, as shown in FIGS. 7 and 14, a state in which the screen member is folded is referred to as a “closed state”.

(Embodiment 1)
1 to 5 are views showing an open state of the projector screen according to the first embodiment. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a rear view, FIG. 4 is a left side view, and FIG. 5 is a right side view. The bottom view of the projector screen of Embodiment 1 is omitted because it is symmetrical with the plan view shown in FIG.

As shown in FIGS. 1 and 2, the projector screen 1 according to the first embodiment includes a screen member 40 provided on a support 10. The support 10 and the connecting members 20 and 21 are connected by connecting means such as an adhesive, a pressure-sensitive adhesive, and welding. The connecting members 20 and 21 and the clamping members 30 and 31 are connected by connecting means such as an adhesive, an adhesive, and welding. Both ends of the screen member 40 are sandwiched between the clamping members 30 and 31. The sandwiching members 30 and 31 sandwich both end portions 40a and 40a 'of the screen member 40 in the longitudinal direction A. That is, the screen member 40 constituting the present invention is integrally connected to the support 10 via the sandwiching members 30 and 31 and the connecting members 20 and 21.

In FIG. 1, the lateral direction B indicates a direction orthogonal to the longitudinal direction A. Reference numerals 10b and 10b 'denote end portions of the support 10, respectively.

As shown in FIG. 2, the projector screen 1 according to the first embodiment has a space 50 between the screen member 40 and the support 10 in the opened state.

The connecting members 20 and 21 are members that adjust the open state and the closed state.
As shown in FIG. 2, the connecting members 20 and 21 are composed of support connecting portions 20a and 21a, intermediate connecting portions 20b and 21b, and sandwiching member connecting portions 20c and 21c, and these three members are integrated. It is.
The support body connecting portions 20a and 21a and the support body 10 and the sandwiching member connecting portions 20c and 21c and the sandwiching members 30 and 31 are connected via connection means such as an adhesive, an adhesive, welding, and a sealing resin. Become. That is, the support 10 and the clamping members 30 and 31 are connected and integrated via the connecting members 20 and 21.

The intermediate connecting portions 20b and 21b are intermediate portions between the support connecting portions 20a and 21a and the holding member connecting portions 20c and 21c. Since the intermediate connecting portions 20b and 21b are not directly connected to the support 10 or the holding members 30 and 31 via connecting means, the intermediate connecting portions 20b and 21b are used as supporting points to support the holding member connecting portions 20c and 21c. The body connecting portions 20a and 21a can be folded. As a result, as shown in FIG. 7, the screen member 40 connected via the holding member connecting portions 20c and 21c and the holding members 30 and 31 can be folded into the space 50, so that the portability of the projector screen 1 is improved. Will improve. Further, when the support 10 is folded, the screen member 40 is folded via the connecting members 20 and 21 and the sandwiching members 30 and 31 so that the screen member 40 is accommodated in the space 50 without forming wrinkles on the screen member. Can do.

The shapes of the connecting members 20 and 21 can be U-shaped as shown in FIG. 2 and the like, but are not limited thereto. That is, the connecting members 20 and 21 may be any members having the support connecting portions 20a and 21a, the intermediate connecting portions 20b and 21b, and the sandwiching member connecting portions 20c and 21c. Examples of the shape of the connecting members 20 and 21 include a U-shape, a V-shape, and a U-shape.

The positions of the connecting members 20 and 21 formed on the support 10 are not limited. Therefore, for example, the connecting members 20 and 21 may be formed continuously from the end 10b to the end 10b ′ of the support 10, or from the end 10b to the end 10b ′ of the support 10 in a broken line shape. It may be formed in pieces. Further, since the connecting members 20 and 21 can be formed independently, the connecting member 20 is formed at one end 10b of the support 10 and the connecting member 21 is formed at one end 10b ′ of the support 10. It can also be formed. In addition, the connecting members 20 and 21 may be formed near the center of the support 10 in the short direction B (away from the end portions 10b and 10b ′).
In the present embodiment, it is preferable that the connecting member 20 is formed continuously from end to end of the support 10 because the projector screen 1 can be easily folded and the strength of the projector screen 1 is improved. .

Holding members 30 and 31 are connected to the connecting members 20 and 21. What is necessary is just to determine suitably the formation position of the clamping members 30 and 31 with the formation position of the connection members 20 and 21. FIG.

When the projector screen 1 is opened, the support 10 spreads in a V shape as shown in FIG. By placing the end portion 10b or 10b ′ of the support body 10 spreading in a V shape on a table such as a desk or table, the projector screen 1 can be made upright.
The support 10 only needs to be able to erect and fold the projector screen 1, and the shape in the plan view is not limited. For example, the support 10 is semicircular, W (M) -shaped, V A letter shape etc. can be mentioned.

The clamping member in this invention is demonstrated. FIG. 6 is an enlarged exploded plan view of the screen member 40 and the clamping member. Fig.6 (a) is a figure which shows one Embodiment of a clamping member, FIG.6 (b) is a figure which shows another embodiment of a clamping member. Although one end 41 of the screen member 40 is shown in FIG. 6, the other end of the screen member 40 similarly has a clamping member.

As shown in FIG. 6A, the end 41 of the screen member is sandwiched between the sandwiching member 32 and the sandwiching member 33. The end 41 of the screen member may be anything that is sandwiched between the clamping members 32 and 33, and the end 41 may or may not protrude from the clamping members 32 and 33. The clamping members 32 and 33 and the screen member 40 are connected and integrated by connecting means such as an adhesive, an adhesive, welding, and a sealing resin. These connecting means may be used alone or in combination.

In this specification, the sandwiching member may be any member as long as it can sandwich the screen member 40 and is connected and integrated with the screen member 40 by a connecting means, and the shape thereof is not limited. As the shape of the clamping member, a U-shaped clamping member 34 as shown in FIG. 6B can also be used.
The clamping member 34 and the screen member 40 can be connected via the connecting means after the screen member 40 is inserted into the recess 35 of the clamping member 34.

As shown in FIG. 7, the projector screen 1 according to the first embodiment having the above configuration can store the screen 40 in the space 50 by folding the support 10. As a result, a projector screen having excellent portability can be provided.
Further, according to the first embodiment, since the number of members can be reduced, it is possible to provide a small projector screen with excellent economy.

(Embodiment 2)
8 to 11 are views showing a state in which the projector screen according to the second embodiment is opened. 8 is a front view, FIG. 9 is a plan view, and FIG. 10 is a rear view. The bottom view of the projector screen according to the second embodiment is omitted because it is symmetrical to the plan view shown in FIG.
FIG. 11 is a diagram illustrating a closed state of the projector screen according to the second embodiment.
The projector screen according to the second embodiment is the same as the projector screen according to the first embodiment except that a back cover is provided on the support.

The spine portion 11 is a portion sandwiched between bent portions 12 and 13 formed on the support 10. The bent portions 12 and 13 may be formed on the support, and the positions and number of the bent portions 12 and 13 are not limited. Therefore, for example, the bent portions 12 and 13 may be formed continuously from the end 10b to the end 10b ′ of the support 10 as shown in FIG. 8, or the bent portions 12 and 13 as shown in FIG. 13 may be formed in a broken line shape from the end 10b to the end 10b ′ of the support 10. Further, as shown in FIG. 13, the bent portion 12 may be formed at one end portion 10 b of the support 10, and the bent portion 13 may be formed at one end portion 10 b ′ of the support 10. In addition, as shown in FIG. 14, the bent portions 12 and 13 may be formed near the center of the support 10 in the short direction B (away from the end portions 10 b and 10 b ′).

Further, the formation positions and the number of the bent portions 12 and 13 can be determined independently.
In the present embodiment, the bent portions 12 and 13 are preferably provided so as to exist on the same straight line (so as to be parallel to the longitudinal direction A). This makes it easy to fold the projector screen 2.
In the present embodiment, it is more preferable that the bent portions 12 and 13 are formed continuously from end to end of the support 10. This makes it easier to fold the projector screen 2 and to keep the folded state.

The figure which folded the screen 2 for projectors of Embodiment 2 was shown in FIG.
Since the projector screen 2 of the second embodiment has the spine portion 11, the folded state of the screen member 40 is held at a gentle angle in the folded state of the screen member 40 compared to the first embodiment. Become. As a result, the shape is not easily memorized even when the screen member 40 is folded, so that the screen member 40 can be kept well in the opened state.
Although not shown in FIG. 11, a magic fastener (registered trademark) may be provided on the support 10. By providing the magic fastener (registered trademark), the projector screen 2 can be suitably maintained in a folded state.

(Embodiment 3)
15 and 16 are views showing a state in which the projector screen according to the third embodiment is opened. 15 is a front view, and FIG. 16 is a plan view.
The projector screen of the third embodiment is the same as the projector screen of the first embodiment except that the clamping members 36 and 37 are provided.

In the projector screen 3 according to the third embodiment, one end portion 10 b or 10 b ′ in the short direction B of the screen member 40 is sandwiched between the sandwiching members 36 and 37.
This makes it easy to stand the projector screen 3 in the open state. In addition, since it can be placed on a table such as a desk or table via the sandwiching members 36 and 37 when standing upright, the end 40b or 40b ′ of the screen member covered with the sandwiching members 36 and 37 is used. Can prevent damage. Further, the screen member 40 can be accommodated in the space 50 without forming wrinkles in the screen member 40 when the support 10 is folded.

The sandwiching members 36 and 37 do not have to cover all the end portions 40b or 40b 'of the screen member 40, and may be any member that partially covers the end portions. As the shape of the holding members 36 and 37, for example, the structure shown in FIGS. 6A and 6B can be used.

The sandwiching members 36 and 37 and the sandwiching members 30 and 31 may be integrated, or may be independent from each other. From the viewpoint of improving the strength of the projector screen, it is preferable that the clamping members 36 and 37 and the clamping members 30 and 31 are integrated to have an L-shape.

The spine portion shown in the second embodiment can also be provided on the support for the projector screen of the third embodiment.
In the case of providing the spine portion, in the front view with the projector screen open, the folding portion constituting the spine portion and the clamping members 36 and 37 shown in FIG. It is preferable from the viewpoint of foldability that the member can be visually recognized independently.

(Embodiment 4)
FIG. 17 is a front view showing an open state of the projector screen according to the fourth embodiment.
The projector screen is the same as that of the third embodiment except that the holding members 38 and 39 are provided.

In the projector screen 4 of the fourth embodiment, both end portions 40 b and 40 b ′ in the short direction of the screen member 40 are sandwiched between sandwiching members 36, 37, 38 and 39.
Thereby, damage at both end portions 40b and 40b ′ of the screen member 40 can be prevented. Further, the screen member 40 can be accommodated in the space 50 without forming wrinkles in the screen member 40 when the support 10 is further folded than in the third embodiment.

The material which comprises this invention is demonstrated below.
As the screen member constituting the present invention, for example, a metal plate such as aluminum, a sheet, a foil, a metal thin film such as aluminum or silver provided by plating or vapor deposition, or a white pigment such as titanium oxide is kneaded or applied. A film, a film in which reflective plate-like particles such as aluminum and a pearl pigment are kneaded or coated can be used.
Since the screen member is folded and stored, a material in which a metal foil film such as aluminum is formed on the film can be preferably used.

As a material constituting the support, the connecting member, the sandwiching member, and the spine portion, for example, a paperboard or a resin material can be used. Specific examples of the resin material include polyethylene, polypropylene, and expanded polypropylene.

Although different materials can be used for the support and the spine portion, it is preferable to use the same material. When using paperboard as the same material, for example, a back cover part is produced by forming a bent part by bending a support. In the case of using a resin material as the same material, for example, the spine portion can be produced by making the portion to be the bent portion thinner than the thickness of the support.

The support and the connecting member, the connecting member and the holding member, and the holding member and the screen member can be connected by an adhesive, an adhesive, welding, a sealing resin, or the like. As the pressure-sensitive adhesive, adhesive, and sealing resin, acrylic resin, epoxy resin, polyester resin, phenol resin, ethylene-vinyl acetate copolymer, and the like can be used.

Front view of a projector screen according to a first embodiment FIG. 3 is a plan view of the projector screen according to the first embodiment. The rear view of the screen for projectors of Embodiment 1 The left view of the projector screen of Embodiment 1 The right view of the projector screen of Embodiment 1 Enlarged exploded plan view of the clamping member and the screen member The top view of the state which folded the screen for projectors of Embodiment 1 Front view of a projector screen according to a second embodiment Plan view of screen for projector of embodiment 2 Rear view of projector screen according to embodiment 2 Plan view of a state in which the projector screen according to the second embodiment is folded Front view of another projector screen in the second embodiment Front view of another projector screen in the second embodiment Front view of another projector screen in the second embodiment Front view of a projector screen according to a third embodiment Plan view of screen for projector of embodiment 3 Front view of a projector screen according to a fourth embodiment

Explanation of symbols

1, 2, 3, 4 Projector screen 10 Support 10b, 10b 'End of support 11 Back cover 12, 13 Bending part 20, 21 Connecting member 20a, 21a Support connecting part 20b, 21b Intermediate connecting part 20c 21c Clamping member connecting portions 30, 31, 32, 33, 34, 36, 37, 38, 39 Clamping member 35 Recess 40 Screen member 40a, 40a 'Screen member end 40b, 40b' Screen member end 41 End surface 50 Space A Longitudinal direction B Short direction

Claims (5)

A projector screen in which a screen member is provided on a support,
The support and the connecting member are connected,
The connecting member and the clamping member are connected,
A projector screen, wherein the screen member is sandwiched between the clamping members. The projector screen according to claim 1, wherein the sandwiching member is formed so as to sandwich both longitudinal ends of the screen member. The projector screen according to claim 1, wherein a spine portion is provided on the support. The projector screen according to claim 2, wherein one end portion of the screen member in a short direction is sandwiched between the clamping members. The projector screen according to claim 2, wherein both end portions of the screen member in a short direction are sandwiched by the clamping member.

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