JP2018180246A - Telescopic screen unit for projection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat screen surface without any problem even when a receiving metal fitting or the like is not provided in advance at an installation location and a small protrusion exists in an installation area for projection. Provides a telescopic screen. SOLUTION: The screen main body 2 has a screen surface 4 that can be viewed from the front in an installed state, and substantially the entire screen including the screen surface 4 can be expanded and contracted, and at least a part of the screen is a peripheral portion of the screen main body 2. The size and shape of the screen main body 2 can be freely changed by providing a sticking portion 3 as a sticking means provided so as to project rearward from the main body 2 and changing the fixing position of the sticking portion 3. It was supposed to be possible. [Selection diagram] Fig. 1

Description

  The present invention relates to a telescopic screen apparatus for projection which can freely change the size and the shape of the screen surface in accordance with the preference and use environment of the user.

  Conventionally, a stretchable polyurethane tape is used as a projection screen that can be easily adjusted to the place of use, using elastic polyurethane-containing bias tape on each side of a stretchable synthetic fiber knit knitted white fabric, with a rubber tape as the core There is a case in which a sewing machine is sewn while holding it in, and a pulling tool is attached to the tip and some places of the sewn tape (see Patent Document 1). In this projection screen, the screen can be installed in accordance with the place of use by sequentially attaching the pulling tool to the mounting bracket at the installation place.

  In addition, there is a highly portable screen having high portability that can reduce both vertical and horizontal dimensions when not in use, and can easily return to the original shape when in use. (See Patent Document 2). This screen can be fixed while being pulled in a state in which the screen body is spread by locking fixtures provided at the four corners of the screen to the mounting portion of the fixed installation.

Utility model registration No. 3081156 gazette JP, 2006-53289, A

  However, in each of the screens described in Patent Documents 1 and 2, the screen is installed by sequentially attaching a pulling tool or a fixture to a receiving metal fitting or a mounting portion provided in advance at the installation location. Therefore, when installing the screen and adjusting the size and shape of the installation, estimate the size and shape of the screen after installation or adjustment, first adjust the position of the receiving bracket etc., and then actually adjust the screen side. It is necessary to install or adjust the screen in accordance with the position of the pulling bracket or the like to the position of the bracket. For this reason, it is difficult to make the intended size and shape in one operation even if the bracket or the like is disposed at an appropriate place, and if there is a small protrusion in the installation area of the screen, this protrusion The back of the screen hit the part and there was a problem that the screen was wrinkled or distorted. In particular, it is difficult to predict the size and shape of a large screen such as 100 inches or more, and it is difficult to install or adjust the screen quickly without any wrinkles or distortions on the screen. The

  In the place where the present invention is to be solved in view of the above-mentioned situation, there is no need to provide a bracket in advance, and a flat screen surface without any problem even in the case where a small protrusion is present in the installation area. Providing a telescopic screen apparatus for projection which can be easily provided.

  The telescopic screen apparatus for projection according to the present invention has a screen surface which can be viewed from the front in an installed state to solve the above-mentioned problems, and a screen main body capable of expanding and contracting substantially the whole including the screen surface; And affixing means provided at a peripheral portion of the main body so that at least a portion of the main body protrudes rearward relative to the screen main body, and changing the fixing position of the affixing means changes the size and size of the screen main body. The shape can be freely changed.

  Further, the sticking means may be provided with a sticking part having a magnetic force at the peripheral portion of the screen main body.

  Furthermore, it is possible to form a wave-shaped or lightning-shaped seam with an expandable thread at the periphery of the screen main body.

  Furthermore, a part of the peripheral portion of the screen main body may be more difficult to expand or contract than the other peripheral portions.

  Further, connection means may be provided at the periphery of the screen to enable connection with other projection telescopic screen devices.

  Furthermore, the screen main body may be formed by laminating a plurality of sheet bodies including at least one light shielding sheet.

  According to the telescopic screen apparatus for projection according to the present invention, since it can be installed on a wall surface or the like by the attaching means, the screen can be easily installed and the size or the shape can be easily changed without using any other device. be able to. Further, since the screen main body held by the adhesion means on the wall surface or the like is in a state of floating from the wall surface, the screen main body does not contact this projection even if there is a small projection in the adhesion area of the wall. Flat and beautiful screen surface can be formed.

  In addition, according to the above-mentioned embodiment, in which the sticking unit is provided with a sticking portion having a magnetic force at the peripheral portion of the screen main body, for example, it is possible to magnetically attach a blackboard, a white board, or a partition board. If it is possible to stick the sticking part anywhere, it becomes possible to select the installation place of the screen widely.

  Further, according to the screen main body, at the periphery of the screen main body, a wave-like or lightning-shaped seam is formed by an expandable yarn, the stretchability of the stretchable yarn itself and the wave-like or lightning-shaped seam The stretchability in the longitudinal direction can provide sufficient stretchability to the periphery of the screen body.

  In addition, if a part of the peripheral portion of the screen main body is less likely to expand or contract than the other peripheral portions, the peripheral portion other than the portion which is not easily expanded or contracted is strongly pulled. It is possible to adjust the shape of the screen surface in the state where the screen main body is enlarged by changing the arrangement of the portion that is hard to expand or to not expand, so that the expanded screen surface becomes the intended shape. Can be configured.

  Furthermore, according to the apparatus in which connection means capable of connecting with other projection telescopic screen devices are provided at the peripheral portion of the screen, a larger screen can be obtained by connecting a plurality of projection telescopic screen devices. It is possible to construct a face.

  Further, according to the screen main body made up by laminating a plurality of sheet bodies including at least one light shielding sheet, it is possible to project a clearer image by blocking the light from the back side.

FIG. 1 is a front view showing a configuration of a projection telescopic screen device according to an embodiment of the present invention. Similarly it is an explanatory view showing the state which expanded and installed the telescopic screen device for projection on the partition-type wall surface, (a) is a front view, (b) is a top view. It is a front view showing a state where the telescopic screen unit for projection is similarly installed between two white boards. It is explanatory drawing which shows the structure of the expansion-contraction screen apparatus for projection (thing which provided the part which does not expand-contract to a periphery) which concerns on another embodiment of this invention, (a) is provided with the part which does not expand-contract in the middle of each edge. (B) is a front view which shows what provided the part which does not expand-contract to the both end side of each edge | side. It is explanatory drawing which shows the structure of the expansion-contraction screen apparatus for projection (thing which provided the surface fastener as a part which does not expand-contract to a periphery) which concerns on another embodiment of this invention.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the embodiments of the present invention will be described in detail based on the attached drawings, but the present invention is not limited to the embodiments shown in the attached drawings but includes all the embodiments satisfying the requirements described in the claims. . Further, in the present specification, the direction from the projection telescopic screen device 1 in the installation state to the installation surface such as a wall surface is referred to as the rear, and the opposite direction is referred to as the front. Also, the screen surface that can be viewed from the front means a screen surface that can be viewed at least temporarily or partially by a person on the front side of the installed telescopic screen apparatus 1 for projection, from other directions. Including those that can be viewed.

  An embodiment of a projection telescopic screen apparatus 1 according to the present invention will be described with reference to FIGS. 1 to 4.

  As shown in FIG. 1, the projection telescopic screen device 1 has a screen surface that can be viewed from the front in the installed state, and the screen main body 2 is substantially entirely extensible including the screen surface 4; And affixing means (a plurality of adhering portions 3) provided so that at least a part of the peripheral portion of the screen projects rearward than the screen main body 2, and changing the fixing position of the affixing means The size and shape of the screen main body 2 can be freely changed.

  The screen body 2 is made of a stretchable rectangular screen sheet as a whole, and the periphery of the screen sheet is folded back and sewn to form the screen body 2. The stitch 6 of the folded portion is an elastic thread and is formed in a lightning-like manner, so that the expansion and contraction of the screen main body 2 is not restricted thereby. In addition, the back side of the screen sheet is black, and the black frame portion 5 is formed so that the back side fabric appears on the front side and the screen surface 4 is surrounded by folding back the peripheral edge. The black frame portion 5 makes the image projected on the screen surface 4 clearer.

  The screen sheet constituting the screen main body 2 is formed by laminating three sheet bodies. Among these, the sheet disposed closest to the front side is the one whose surface constitutes the screen surface 4, and the sheet disposed second from the front side is the same as the sheet disposed closest to the front side. It consists of a sheet body. By superposing sheet bodies for forming the screen surface, the function as the screen can be more exhibited. Further, since the sheet disposed at the rearmost side has a light shielding property, it can block particularly the light from the rear side. For this reason, for example, even when the telescopic screen device 1 for projection is installed on a wall with a pattern or a window into which light is inserted, it is projected on the screen surface 4 on the front surface while blocking these patterns and light. Can be projected beautifully.

  Here, the screen main body 2 may be any one having stretchability, but with regard to the stretchability, the screen main body 2 is deformed into any shape by having stretchability in all the vertical and horizontal directions and the oblique direction. Although it is configured as being capable of being used, the shape of the expanded screen main body 2 is used not only as such, but as having elasticity only in one direction or two directions of up and down, left and right or diagonal It may be shaped according to the purpose. In addition, the screen main body 2 may be of another configuration as long as it can project at least an image projected from a projector, and for example, an image projected on the back side is projected on the front, a screen sheet As a device capable of performing a touch operation, it may be possible to directly perform writing or the like on an image displayed on the screen surface 4. Furthermore, the screen surface 4 may be partially or entirely transparent. Further, a second screen surface or a surface for posting information such as an advertisement may be provided on the back side of the screen main body 2. In addition, since the screen main body 2 is comprised as what has air permeability, even if it is a case where it mounts between two white boards, for example, the screen surface 4 projects a beautiful image, without being shaken by wind. It can be done.

  The sticking part 3 protrudes to the installation surface side more than the screen main body 2. The sticking portion 3 is L-shaped and is provided along the four corners of the screen main body 2 so that each side can be pulled appropriately. It is not a good idea. Here, the height of the protrusions of all the adhesive portions 3, 3,... Is about 5 mm, and the flat screen surface 4 can be formed even when installed on a wall surface by partition board. Not limited to this, it may be less than 5 mm, and all protrusions may not have the same height.

  The sticking part 3 has a magnetic force on the installation surface side, and the sticking part 3 is stuck to a place where it can be magnetically attached such as a white board, a blackboard, or a partition by this magnetic force. Moreover, although this sticking part 3 is provided in the four corners of the screen main body 2, it does not restrict to such a structure, for example, one sticking part 3 is further added to the middle of the long side of the screen main body 2, respectively. By providing, even when the screen main body 2 is expanded, the depression toward the screen center side in the long side can be reduced, and the screen surface 4 can be formed wider. In addition, the sticking part 3 has magnetic force by installing a magnet inside.

  Here, since a part of the sticking part 3 protrudes rearward with respect to the screen main body 2, the screen main body 2 is supported by the sticking part 3 and protrudes forward in the installed state. Therefore, for example, even when a small protrusion is present on the wall to be attached, the screen main body 2 does not interfere with this, and a flat and clean screen surface 4 can be formed. There is. In addition, since the screen main body 2 is separated from the wall surface or the like in the installed state, when removing the projection telescopic screen device 1, a hand can be inserted into the gap between the screen main body 2 and the wall surface , The removal operation can be easily performed. Furthermore, since the screen main body 2 protrudes forward from the wall surface, the image projected on the screen surface 4 becomes a three-dimensional screen surface distinguished from the wall surface, which makes the image easy to see.

  The screen surface 4 is provided at the center on the front side of the screen main body 2. Since this screen surface 4 is a reflective type, an image projected from the front is projected on the front. Therefore, the projector and the viewer are located on the front side of the projection telescopic screen device 1. A black frame 5 is provided around the screen surface 4.

  The black frame portion 5 is formed by folding the periphery of the screen main body 2 to the front side, and the light shielding sheet disposed on the back side appears on the front side by folding back. For this reason, the sheet material disposed on the rearmost side of the screen sheet as the light shielding sheet can be also functioned as the black frame 5 by setting it as black or a color close to this. The image projected on 4 becomes clearer. In the black frame portion 5, a lightning-shaped seam 6 is formed of an elastic thread.

  The seam 6 of the black frame portion 5 is one in which an elastic thread is sewn in a lightning bolt shape. For this reason, without limiting the expansion and contraction of the screen main body 2 of this portion, the peripheral portion of the screen main body 2 can be reinforced to perform the end portion processing. Although this seam does not cause a problem in the stretchability of the screen main body 2 by using a highly stretchable thread, the present invention is not limited to such a thread, and for example, it is lower than the stretchability of the screen main body 2 The expansion and contraction of the screen main body 2 may be intentionally limited by using a material. Also, the shape of the seam is not limited to the shape of the lightning bolt, and may be a wave shape that produces the same effect, and in order to limit the stretchability in one direction, a linear seam or a combination thereof is used It may be a stitch of another shape.

  FIG. 2 shows the telescopic screen unit 1 for projection according to the present embodiment installed on a partition-type wall surface. Partition-type wall surfaces are mainly used when forming a plurality of rooms by dividing large floors in offices and stores, and adjacent partition boards B are connected by connecting bars L to form wall surfaces. The connecting bar L is provided so as to sandwich the ends of the two partition boards B, so that in the state of being configured as a wall surface, the connecting bar L protrudes on both sides of the front and back sides of the partition board B. ing. For this reason, when a magnet screen formed of a magnet sheet is attached to a wall surface of such partition board B, for example, the connection bar L interferes with providing a flat screen surface. In this respect, since the screen main body 2 is provided in a state of being separated from the wall surface because the sticking portion 3 protrudes rearward, the screen main body 2 is connected to the connecting bar L as shown in the figure. A flat and clean screen surface 4 can be provided without interference.

  FIG. 3 shows a state in which the telescopic screen unit 1 for projection is installed between two movable whiteboards W. As shown in FIG. The whiteboard W is a movable type with a caster, and has the same size and the same shape. Moreover, since this white board W is a general thing in which both the board part and the leg part are metal, the sticking part 3 can be stuck on any of the board part and the leg part, and the use purpose It is possible to easily provide the screen surface 4 having a size and a shape in accordance with Furthermore, since the whiteboard W is movable, the horizontal plane 4 is mainly obtained by moving the two whiteboards W and W close to or away from each other from the installation state of the telescopic screen apparatus 1 for projection shown. The size of the direction can be easily changed. In addition, as installation in other than such a wall surface, it is not limited to what used two white boards W, but in addition to a white board, a blackboard, a door, a sash of a window, etc. So, you can choose anything.

  FIG. 4 shows a specific configuration example in which a part of the peripheral portion of the screen main body 2 is difficult to stretch or does not stretch as another embodiment according to the present invention.

  In the telescopic screen apparatus 1A for projection shown in FIG. 4A, the central portion of each side in the peripheral portion 5 of the screen main body 2A is made stretchable, and the other portions are made relatively difficult to stretch. There is. In the central portion of these, as in the above-described embodiment, by providing the seam 6a in a lightning-gage shape with a thread having stretchability, it has high stretchability. On the other hand, in portions other than the central portion, it is difficult to expand and contract the portion by providing a straight seam 6b with a non-stretchable sewing thread. The sewing thread may be a single thread, but by arranging a plurality of threads in parallel as shown in the drawing, expansion and contraction can be further limited and durability can be improved.

  The telescopic screen unit 1B for projection shown in FIG. 4 (b) is constructed by reversing the arrangement of the telescopic unit from the telescopic screen unit 1A for projection. That is, the central portion of the peripheral portion 5 of the screen main body 2 is not stretched (stitch 6b), and the other portions are configured as stretchable (stitch 6a).

  The projection telescopic screen devices 1A and 1B control the shape of the screen surface 4 in the state where the screen main body 2 is expanded and installed, and the stretchability and expansion and contraction of the sheet constituting the screen surface 4 are performed. According to the direction, the size and shape of the screen surface 4 in the expanded state are adjusted according to the purpose by providing the stretchable portion and the non-stretchable portion or the portion that is difficult to stretch. For example, a horizontally long rectangular area which is a general shape of an image projected from a projector can be provided as wide as possible.

  FIG. 5 shows a projection telescopic screen device 1C provided with a connecting member 7 at the periphery of the screen main body 2 for coupling to another projection telescopic screen device. According to such a configuration, it is possible to form a still larger screen surface by using a plurality of telescopic screen devices for projection vertically or horizontally. In the present embodiment, a surface fastener is used as the connecting member 7 in a simple configuration, but general members such as fasteners, buttons, and hooks, of course, are used for other applications and newly developed. You may employ the thing for connecting. At this time, when a non-stretchable material such as a hook-and-loop fastener or a fastener is used as a connecting member, the hook-and-loop fastener does not expand or contract the screen body 2 instead of the straight seam 6b in the projection screen 1A, 1B. It is good also as what is provided as what comprises a part. With such a configuration, the connecting member and the member for restricting the stretchability are constituted by one member, and the projection telescopic screen device can be made inexpensive and simple.

  The other constructions of the projection telescopic screen devices 1A, 1B and 1C are the same as the construction of the projection telescopic screen device 1 and the same reference numerals are given to the same constructions and the description thereof will be omitted.

  In the above-described telescopic screen apparatus for projection, the screen main body and the screen surface are configured to be substantially rectangular, but the present invention is not limited thereto. Other planar shapes such as a square, a circle, and an ellipse, or three-dimensional It may be configured as a shape, or it may be able to deform the shape according to the display image or the application. Further, the sticking part is not limited to one using magnetic force, and various kinds of things such as a suction cup, a double-sided adhesive tape that can be repeatedly removed, a holding member, or the like may be appropriately selected or used in combination. Furthermore, the telescopic screen apparatus for projection is not limited to the installation place as described above, and can be attached at any place where it can be installed by the attaching means. For example, cylindrical pillars, spheres, etc. You may wind around what was comprised by the curved surface, and you may attach so that uneven | corrugated shapes, such as stairs, may be followed.

1, 1A, 1B Telescopic screen device for projection 2, 2A, 2B Screen main body 3 Sticking portion 4 Screen surface 5 Black frame portion 6 Stretchable seam 6a Stretchable seam 6b Stretchable seam 7 Connecting member B Partition board L connected bar W white board

Claims (6)

A screen body having a screen surface which can be viewed from the front in an installed state, and the substantially whole including the screen surface can be expanded and contracted;
And attaching means provided at a peripheral portion of the screen main body so that at least a portion thereof protrudes rearward than the screen main body,
A projection telescopic screen device capable of freely changing the size and the shape of the screen main body by changing the fixed position of the sticking means with respect to the ground plane. The projection telescopic screen apparatus according to claim 1, wherein the sticking means is provided with a sticking part having a magnetic force at a peripheral portion of the screen main body. 3. A telescopic screen apparatus for projection according to claim 1, wherein a wave-like or lightning-shaped seam is formed by an expandable thread at the peripheral portion of the screen main body. The projection telescopic screen apparatus according to any one of claims 1 to 3, wherein a part of the peripheral portion of the screen main body is more difficult or not to expand and contract than the other peripheral portions. 5. The telescopic screen apparatus for projection according to any one of claims 1 to 4, wherein a connecting means which can be connected to another telescopic screen apparatus for projection is provided at a peripheral portion of the screen. The telescopic screen apparatus for projection according to any one of claims 1 to 5, wherein the screen main body is formed by laminating a plurality of sheet bodies including at least one light shielding sheet.

Images