JP2016038485A - Projection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable projection device which does not require taking in and out a projector when executing the presentation or the similar action and also which does not require preparing a placing base of the projector.SOLUTION: A projection device includes: a case body 2 having a peripheral wall part 24 along a bottom plate part 20 and an outer peripheral edge of the bottom plate part 20 and a hand-carry part provided on an outer surface of the peripheral wall part 24; a lid body openably and closably installed on the case body 2; a support base plate 5 vertically replaceably installed on the bottom plate part 20 inside the case body 2; a projector 4 supported on the support base plate 5; and a stopper mechanism 7 for localizing the support base plate 5 at a height position at which the projection of the projector 4 is not blocked by the peripheral wall part 24 of the case body 2. When the stopper mechanism 7 is released, the support base plate 5 displaces downward to a height position at which the projector 4 does not interrupt the closing of the lid body.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a projection apparatus that displays an image by projecting on a screen, and in particular, the present invention relates to a projection apparatus that can be carried to a venue where a presentation is performed.

  In recent years, it has been common to perform presentations while displaying images and characters on a screen using a computer. Bring your laptop computer and its peripherals to the venue where the facilities are well-equipped, and connect your computer to the projector, etc., prepared at the destination venue for presentations.

  A laptop computer is not bulky and can be carried in an attache case or bag, and it is taken out at the venue and connected to a projector. In order to reduce the burden of connecting the personal computer, peripheral devices, and power supply, a portable case that can be loaded with the personal computer and its peripheral devices, other electrical / electronic devices, and the power supply connected is proposed. (For example, refer to Patent Document 1).

  By carrying a personal computer with the above carrying case, it is possible to start a presentation promptly without connecting the personal computer and the projector at the destination venue, and without having to spend time on other connection work.

  A storage case for storing both the personal computer and the projector has also been proposed in order to speed up the connection between the personal computer and the projector (see, for example, Patent Document 2). Since both personal computers and projectors are owned by themselves, they are proficient in handling them, and it is not necessary to connect and adjust both, and it is also possible to connect both in advance.

Japanese Patent Laid-Open No. 10-112 JP 2007-296278 A

  However, in the case of the storage case described in Patent Document 2, when using a personal computer and a projector, it is necessary to take out both from the storage case. In addition, after the presentation is finished, it is necessary to perform both of them in a storage case. In addition, the storage case is an assembly-type pedestal, and a projector or the like is installed on the cradle. However, it takes time to assemble and disassemble the cradle, and there is a problem that it lacks speediness and simplicity.

  The present invention has been made paying attention to the above-mentioned problems, and does not require the operation of taking in and out the projector when performing a presentation or the like, and is not required to prepare a stand for the projector at the time of projection. It is an object of the present invention to provide a possible projection apparatus.

  The projection device according to the present invention displays an image by projecting on a screen, and includes a case body having a bottom plate portion, a peripheral wall portion along the outer peripheral edge of the bottom plate portion, and a handbag provided on the outer surface of the peripheral wall portion, A lid that is attached to the case body so as to be openable and closable, a support substrate that is attached on a bottom plate portion in the case body so as to be vertically displaceable, a projector that is supported on the support substrate, and a projection of the projector that projects the case body And a stopper mechanism that positions the support substrate at a height that is not obstructed by the peripheral wall portion of the support substrate, and when the stopper mechanism is released, the projector is supported to a height that does not prevent the lid from closing. Is configured to be displaced downward.

  In the projection apparatus having the above-described configuration, the case body closed by the lid is carried to the venue where the presentation is performed, for example, with the handbag. At the start of the presentation, the lid is opened to open the case body, and the support substrate is displaced upward to a height position at which the projection of the projector is not blocked by the peripheral wall portion of the case body. Projection by a projector is possible by positioning the support substrate at the height position by the stopper mechanism. After the end of the presentation, the lid can be closed by releasing the stopper mechanism and displacing the support substrate downward to a height where the projector does not hinder the closure of the lid.

  In a preferred embodiment of the present invention, the support substrate is displaced upward by tilting forward. This displacement mode is suitable for a case body having a low peripheral wall height.

  According to this embodiment, the support substrate is displaced upward by tilting the support substrate up to a height position where the projection of the projector is not blocked by the peripheral wall portion of the case body. Projection by a projector is possible by positioning the support substrate at the height position by the stopper mechanism. On the other hand, the lid can be closed by releasing the stopper mechanism and displacing the support substrate downward to a height where the projector does not hinder the closure of the lid.

  In another preferred embodiment of the present invention, the support substrate is displaced upward due to upward displacement and tilting up while maintaining a horizontal posture. This mode of displacement is suitable for a case body having a high peripheral wall.

  According to this embodiment, the support substrate is displaced upward by the upward displacement and the upward tilt while maintaining the horizontal posture to a height position at which the projection of the projector is not obstructed by the peripheral wall portion of the case body. . Projection by a projector is possible by positioning the support substrate at the height position by the stopper mechanism. On the other hand, the lid can be closed by releasing the stopper mechanism and displacing the support substrate downward to a height where the projector does not hinder the closure of the lid.

  The projection device according to the present invention further includes a stopper mechanism for positioning the lid in a half-open state between the case body and the lid body.

  According to this embodiment, since the lid can be positioned in a half-open state, the field of view from the rear of the lid is not limited, the screen can be visually recognized from the rear of the lid, and the presentation can be easily performed.

  According to the present invention, it is not necessary to put the projector in and out of the case body during the presentation, and it is not necessary to prepare a stand for the projector during the projection, so the presentation can be started quickly and easily. Can be terminated.

It is a perspective view which shows the structure of the projection apparatus which is one Example of this invention. It is a longitudinal cross-sectional view which shows the closed state of the Example of FIG. It is the perspective view which abbreviate | omitted a part which shows the Example of FIG. 1 in the state which removed the support substrate. It is sectional drawing which shows the state which accommodated the projector in the case body. It is sectional drawing which shows the state which displaced the projector upwards in the case body. It is a front view which shows the structure and operation | movement of a supporting member used for a stopper mechanism. It is sectional drawing which follows the AA line of FIG. 6 (1). It is a principle explanatory view of other examples of a stopper mechanism. It is a front view which shows the structure and operation | movement of a 2nd stopper mechanism.

  FIG. 1 shows a configuration of a portable projector 1 according to an embodiment of the present invention. The projection device 1 is used to display an image by projecting on a screen in a venue of a destination, etc., as shown in FIGS. 1 and 2 inside a case body 2 having a lid 3. A projector 4, a power supply device 40, a wireless LAN device 41, a notebook personal computer 42 and the like are accommodated. The case body 2 and the lid body 3 in this embodiment are made of metal, but may be made of synthetic resin, leather, or the like.

The case body 2 includes a bottom plate portion 20, a front wall portion 21, a rear wall portion 22, and both side wall portions 23, 23 along the outer peripheral edge of the bottom plate portion 20. The front wall portion 21, the rear wall portion 22, and the side wall portions 23, 23 are connected to each corner portion to constitute a peripheral wall portion 24. On the outer surface of the front wall portion 21, a hand holding portion 25 and lock fittings 26, 26 are attached. The hand-held portion 25 is a portion that is held to carry the projection apparatus 1. The lock fitting 26 is for holding the lid 3 in a closed state. If the lid 3 is closed, the appearance is the same as that of the attach case, and the projector 1 can be carried with the hand-held portion 25.
The lid 3 is attached to the rear wall portion 22 of the case body 2 by a hinge mechanism 31 so as to be opened and closed. Between the case body 2 and the lid body 3, a second stopper mechanism 9 (details will be described later) is provided that can position the lid body 3 in a half-open state.

  As shown in FIGS. 3 to 5, the support substrate 5 is attached to the inside of the case body 2 on the bottom plate portion 20 by the mounting bracket 6 so as to be vertically displaced. The support substrate 5 has a rectangular shape that substantially matches the opening area of the case body 2, and the projector 4, the power supply device 40, and the wireless LAN device 41 are supported on the upper surface of the support substrate 5. Below the support substrate 5 is a space that can accommodate the notebook personal computer 42. In the figure, reference numeral 50 denotes an anti-slip of the projector 4 or the like, and protrudes from the rear edge of the support substrate 5.

  The projector 4 is a device that projects light and displays an image on a screen. The wireless LAN device 41 wirelessly receives image and character data for presentation from the personal computer 42 and supplies the data to the projector 4. The power supply device 40 supplies power to the projector 4 and the wireless LAN device 41. A power cord (not shown) is pulled out from the power supply device 40, and power can be supplied by inserting a plug into an outlet. The notebook personal computer 42 has a wireless LAN function. Data and images for presentation are stored in the memory of the personal computer 42.

  The mounting bracket 6 is screwed to both sides of the L-shaped frame members 60 and 60 attached in parallel to each other on both sides of the inner surface of the bottom plate portion 20 of the case body 2 and the rear end portion of the lower surface of the support substrate 5. U-shaped frame members 61, 61. By supporting each U-shaped frame member 61 on the L-shaped frame member 60 by a pivot 62, the support substrate 5 can be tilted forward and displaced upward.

The lower end of the extendable support member 70 is rotatably supported at the center of the length of each L-shaped frame member 60. The upper ends of the support members 70 are connected to both sides of the front end portion of the support substrate 5 by metal fittings 71a. The left and right support members 70, 70 constitute a stopper mechanism 7. The stopper mechanism 7 positions the support substrate 5 at a height position where the projection of the projector 4 is not blocked by the front wall portion 21 of the case body 2.
FIG. 5 shows a state in which the projection unit 4 a of the projector 4 is positioned at a position beyond the front wall portion 21 of the case body 2 by the stopper mechanism 7. When the stopper mechanism 7 is released, as shown in FIG. 4, the support substrate 5 is displaced downward to a height position where the projector 4 does not hinder the closing of the lid 3 and is accommodated in the case body 2.

6 (1) to 6 (4) show the configuration and operation of the extendable support member 70 used in the stopper mechanism 7 described above.
The supporting member 70 in the illustrated example includes a first slide piece 71 having a plate shape and a second slide piece 72 having a sheath shape, and the first slide piece 71 is a second slide piece 72 as shown in FIG. The slide piece 72 is slidably inserted into the inner groove 73. A cam piece 74 that is engaged with and disengaged from the second slide piece 72 is attached to the distal end portion of the first slide piece 71 by a shaft 75 so as to be freely rotatable. The cam piece 74 is a rectangular plate-like body, and includes both side edges parallel to each other and front and rear end edges having V-groove portions 74a.

  The second slide piece 72 is provided with a slide groove 76 in the length direction in which the cam piece 74 slides in a vertical orientation. The tip of the sliding groove 76 is a cam operating groove 77 formed by expanding the groove width. The cam piece 74 performs a predetermined engagement / disengagement operation with respect to the first and second convex portions 78 and 79 formed in the cam operation groove 77 (FIGS. 6 (2) to (4)). In the drawing, reference numerals 71 a and 72 a denote metal fittings for screwing the end portions of the slide pieces 71 and 72 to the support substrate 5 and the L-shaped frame member 60.

  FIG. 6A shows a state in which the support member 70 is contracted to be the shortest. At this time, the substantially entire length of the first slide piece 71 enters the inner groove 73 of the second slide piece 72. The cam piece 74 is positioned in the vertical orientation at the end of the sliding groove 76, and the V-groove parts 74 a and 74 a face the direction along the sliding groove 76.

  FIG. 6B shows a state in which the support member 70 is extended to be the longest. At this time, most of the first slide piece 71 has escaped from the inner groove 73 of the second slide piece 72. When the cam piece 74 escapes from the sliding groove 76 in a vertical orientation, the front edge hits the first convex part 78 and slightly inclines in the cam operating groove 77, and the first convex part is formed in the V groove part 74a. 78 is biting.

  FIG. 6 (3) shows a locked state in which the first slide piece 71 is prevented from entering the inner groove 73 of the second slide piece 72. When the first slide piece 71 attempts to enter the inner groove 73 of the second slide piece 72 with the cam piece 74 in the slightly inclined posture of FIG. 6B, the V groove portion 74a of the cam piece 74 is Since the second projecting portion 79 faces the second projecting portion 79, the rear end edge of the cam piece 74 hits the second projecting portion 79 and further inclines, and the second projecting portion 79 bites into the V-groove 74a. As a result, the first slide piece 71 is prevented from entering the inner groove 73 of the second slide piece 72.

  FIG. 6 (4) shows a state where the first slide piece 71 is pulled out from the state shown in FIG. 6 (3). Since the cam piece 74 is in a largely inclined posture in the state shown in FIG. 6 (3), when the side edge hits the first convex portion 78, the cam piece 74 is further inclined. At this time, the side edge of the cam piece 74 is opposed to the second convex portion 79, and when the first slide piece 71 enters the inner groove 73 of the second slide piece 72, the cam piece 74 is moved to the side. When the edge comes into contact with the second convex portion 79 and assumes a vertical posture, the locked state is released, and the first slide piece 71 is allowed to enter the inner groove 73 of the second slide piece 72.

In this embodiment, the stopper mechanism 7 is configured by using the left and right support members 70 having the above-described configuration, and the support substrate 5 is positioned so that the projection portion 4 a of the projector 4 exceeds the front wall portion 21 of the case body 2. When the front end portion is lifted and the support substrate 5 is tilted upward, the support member 70 is in the state shown in FIG. 6 (2), and the support substrate 5 cannot be displaced further upward.
Next, when the support substrate 5 is slightly displaced downward, the support member 70 is in the locked state shown in FIG. 6 (3), and the support substrate 5 is localized in the tilted state.
Next, when the support substrate 5 is tilted upward and upward, the support member 70 is in the unlocked state shown in FIG. 6 (4), and the support substrate 5 can be returned to the original horizontal state.

  The support member 70 used in the stopper mechanism 7 can position the support substrate 5 at a height position where the projection of the projector 4 is not blocked by the peripheral wall portion 24 of the case body 2, and As long as the projector 4 can displace the support substrate 5 down to a height that does not prevent the lid 3 from being closed, the projector 4 is not limited to the structure or mechanism described above.

  In the above embodiment, the support substrate 5 is displaced upward by tilting the support substrate 5 upward and is positioned at a predetermined height position, but the support substrate 5 is maintained in a horizontal position. It may be configured to be displaced upward and to be localized. Further, as shown in FIG. 8, the support substrate 5 is displaced upward while maintaining a horizontal posture, and is displaced upward by being tilted forwardly and is localized at a predetermined height position. May be.

  In FIG. 8, 63 is an L-shaped frame member that is attached to both sides of the lower surface of the support substrate 5, and 64 is an L-shaped frame member that is attached to both sides of the inner surface of the bottom plate portion 20 of the case body 2. Sliding grooves 65 and 66 are formed in the L-shaped frame members 63 and 64, respectively. Reference numerals 67 and 68 denote links that are pivotally supported at the center, and one of the links 67 is integrally provided with the above-described extendable support member 70. One end of each link 67, 68 is rotatably supported by the L-shaped frame members 64, 63, and the other end is slidably engaged with the sliding grooves 65, 66, respectively. The support substrate 5 is displaced upward in a state where the L-shaped frame members 63 and 64 maintain a horizontal posture by making parallel movements, and the support member 70 is tilted forwardly by performing the expansion and contraction operation described above. Displaces upward (indicated by a dashed line in the figure).

Returning to FIG. 1, a second stopper mechanism 9 constituted by a pair of left and right support members 90, 90 is provided between the case body 2 and the lid body 3. Each support member 90 is a known member and is attached between the side wall portion 23 of the case body 2 and the side wall portion 33 of the lid body 3.
As shown in FIG. 9, each support member 90 is formed by connecting a pair of plate-like connecting pieces 91 and 92 so as to be able to bend each other, and an intermittent feed mechanism (not shown) is incorporated in the connecting portion 93. ing. By this intermittent feed mechanism, the second connecting piece 92 attached to the lid 3 is intermittently sent every 45 degrees with respect to the first connecting piece 91 attached to the case body 2, In the figure, as shown by the alternate long and short dash line, the lid 3 can be localized in a plurality of half-open states. In the half-opened state, the field of view from the rear of the lid 3 is not limited, and the screen can be visually recognized from the rear of the lid 3, so that presentation can be performed easily.

In the projection apparatus 1 having the above-described configuration, the case body 2 closed by the lid body 3 is carried to the venue for presentation, for example, with the hand-held portion 25.
At the start of the presentation, the lid 3 is opened to open the case body 2, and the support substrate 5 is tilted up to a height position where the projection of the projector 4 is not blocked by the front wall portion 21 of the case body 2. To move upward. Projection by the projector 4 is possible by positioning the support substrate 5 at the height position by the stopper mechanism 7.
After the end of the presentation, the lid 3 can be closed by releasing the stopper mechanism 7 and displacing the support substrate 5 downward to a position where the projector 4 does not prevent the lid 3 from being closed.

  In the embodiment shown in FIG. 8, the support substrate 5 is displaced upward and tilted forward to a height position where the projection of the projector 4 is not blocked by the front wall portion 21 of the case body 2. By doing so, it is displaced upward.

DESCRIPTION OF SYMBOLS 1 Projection apparatus 2 Case body 3 Cover body 4 Projector 5 Support board 7 Stopper mechanism 9 Second stopper mechanism 21 Front wall part 24 Peripheral wall part 25 Hand-carrying part

Claims (4)

  A projection device that projects images on a screen to display an image, and includes a case body having a bottom plate portion, a peripheral wall portion along an outer peripheral edge of the bottom plate portion, and a handbag provided on an outer surface of the peripheral wall portion, and can be opened and closed to the case body A lid attached to the case, a support substrate attached to the bottom plate portion of the case body so as to be vertically displaceable, a projector supported on the support substrate, and a projection of the projector blocked by a peripheral wall portion of the case body And a stopper mechanism that positions the support substrate at a height position that is not located, and when the stopper mechanism is released, the support substrate is configured to be displaced downward to a height position that does not prevent the lid from closing. A projection device comprising.   The projection apparatus according to claim 1, wherein the support substrate is displaced upward by tilting forward.   The projection apparatus according to claim 1, wherein the support substrate is displaced upward due to upward displacement and forward tilting while maintaining a horizontal posture.   The projection apparatus according to any one of claims 1 to 3, further comprising a stopper mechanism for positioning the lid body in a half-open state between the case body and the lid body.

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