Projector mounting device and projection system

Abstract

To provide a projector fitting device with which, when projected upward by a projector, it is possible to prevent an operator from feeling glaring by projection light, since projection light is no longer projected to the operator side.SOLUTION: The projector fitting device comprises: a stationary member which has a first face and a second face that is opposite the first face, and to which a projector is removably attached to the second face; and a rotary shaft member that supports the stationary member so as to be rotatable from a first attitude where the second face is horizontal to a second attitude that differs in rotation angle than the first attitude. The stationary member has the projector attached to the second face that faces downward in the vertical direction in the first attitude, in such a way that the axial direction of the projection axis of the projector is inclined downward in the vertical direction with respect to the horizontal direction. The second attitude of the stationary member is such that the axis direction of the projection axis is rotated at 90 degrees with respect to the horizontal direction so as to be inclined upward from horizontal in the vertical direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a projector mounting device and a projection system. [Background technology]

[0002] 2. Description of the Related Art Projectors that optically project projection light onto a projection surface are known in the art, and as such projectors, projection devices that can project a projection image in both horizontal and vertical directions have been proposed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-337850 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the projection device disclosed in Patent Document 1 above has a problem in that when the projector projects vertically upward, the projected light is likely to enter the eyes of an operator near the projection device, and therefore a device that takes the projection direction into consideration is needed. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided a projector projector having a first surface and a second surface opposite to the first surface, the projector being attached to the second surface of the fixed member; and a rotary shaft member that rotatably supports the fixed member from a first position in which the second surface is horizontal to a second position having a rotation angle different from the first position. a support member that rotatably supports the fixed member; and a hand-held grip member that is provided on the support member;the projector is attached to the fixing member in the first position so that an axial direction of the projection axis of the projector is tilted vertically downward with respect to the horizontal direction with respect to the second surface that faces vertically downward, and the second position of the fixing member is a position rotated by 90 degrees with respect to the horizontal direction so that the axial direction of the projection axis is tilted vertically upward with respect to the horizontal direction. the rotating shaft member is provided forward of the gripping member in a front-rear direction perpendicular to the rotation axis direction of the rotating shaft member when viewed from the vertical direction, and a movable range of a projection lens of the projector that rotates from the first position to the second position is a range forward of the rotating shaft member. , a projector mounting device is provided.

[0006] According to one aspect of the present invention, there is provided a projection system including the above-described projector mounting device and the projector that projects projection light. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a projection system according to an embodiment, seen obliquely from the front. [Figure 2] FIG. 10 is a perspective view of the projection system as seen from the oblique front at another angle. [Figure 3] FIG. 2 is a front view of the projection system. [Figure 4] FIG. 10 is a side view of the projection system, showing the side panel having the engagement holes as viewed from the side. [Figure 5] 5 is a side view of the fixing member in FIG. 4 when it is in a first position. [Figure 6] 5 is a side view of the fixing member in FIG. 4 when it is in a second position. [Figure 7] 5 is a side view of the fixing member in FIG. 4 when it is fixed between the first position and the second position. FIG. [Figure 8] 5A and 5B are diagrams illustrating the range of projected light when in a first attitude and a second attitude. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings below, the dimensions of the components may be shown on different scales to make them easier to see.

[0009] FIG. 1 is a perspective view of a projection system 1 having a projector mounting device to which a projector 10 according to a first embodiment is mounted, as seen obliquely from the front. FIG. 2 is a perspective view of the projection system 1 as seen obliquely from the front at another angle. FIG. 3 is a front view of the projection system 1 as seen from the front. FIG. 4 is a side view of the projection system, as seen from the side, of the side panel having an engagement hole. The projection system 1 of this embodiment includes a projector 10 that projects projection light, and a projector mounting device 20 on which the projector 10 can be installed.

[0010] The projector 10 installed on the projector mounting device 20 can be transported, for example, by manually moving the projector mounting device 20. In other words, the projector mounting device 20 is used to project light onto, for example, a screen or a wall surface such as a ceiling or side surface in a room for display by simply moving it to a desired position without having to move the projector 10 from the projector mounting device 20 to another location.

[0011] Here, in the projector 10, the direction in which the projection lens 11 is disposed is referred to as the front or front side, and the surface of the housing of the projector 10 that is located on the front side is referred to as the front surface. The projector 10 has a front surface 10A, a rear surface 10B, a pair of side surfaces 10C, 10C, a top surface 10D, and a bottom surface 10E. In the projector 10, the rear surface 10B faces the front surface 10A, and the direction in which the rear surface 10B is disposed is referred to as the rear or rear side.

[0012] FIG. 5 is a side view of the fixing member 30 when it is in the first position P1. FIG. 6 is a side view of the fixing member 30 when it is in the second position P2. FIG. 7 is a side view of the fixing member 30 when it is fixed between the first position P1 and the second position P2. A projection lens 11 is disposed on the front surface 10A. As shown in FIGS. 5 and 6, an exhaust port 12 (vent hole) used for exhaust (ventilation) is provided in the rear portion of at least one of the pair of left and right side surfaces 10C. An intake port (not shown) used for intake (ventilation) is provided on the side surface 10C. The size of the exhaust port 12 is the area from approximately the center to the rear portion of the side surface 10C in the front-rear direction X1. The shape, area, and position of the exhaust port 12 of the projector 10 are not limited to those of the present embodiment.

[0013] Furthermore, a plurality of screw holes (not shown) for attaching the projector 10 to the fixing member 30 are formed at appropriate positions on the underside 10E of the projector 10. The positions and number of the screw holes of the projector 10 are not limited to those in this embodiment.

[0014] As shown in Figures 2 and 3, the projector mounting device 20 includes a plate-shaped fixing member 30 that fixes the projector 10, a rotating shaft member 40 that rotatably supports the fixing member 30 from a first position P1 to a second position P2, a pair of side plates 50 (side members) that rotatably support the fixing member 30 via the rotating shaft member 40 at least in the first position P1 and the second position P2, which has a rotation angle different from the first position P1, and a base stand 60 that has wheels 61 and supports the side plates 50 from below in the vertical direction.

[0015] In the projector mounting device 20, when viewed from above and in a first posture P1 in which a fixing member 30 (described later) is horizontal, the direction perpendicular to the rotation axis C1 of the rotating shaft member 40 is defined as the front-rear direction X1, and the direction in which the projection lens 11 of the projector 10 is arranged in the front-rear direction X1 is referred to as the front or front side, and the opposite side is referred to as the rear or rear side. In addition, the direction along the rotation axis C1 is referred to as the left-right direction X2, and the direction going around the rotation axis C1 is referred to as the circumferential direction.

[0016] The fixing member 30 is supported by the pair of side plates 50 so as to be rotatable in the circumferential direction between a first position P1 and a second position P2. The fixing member 30 is shaped like a plate with a certain thickness, and has a first surface 30a and a second surface 30b opposite the first surface 30a. When the fixing member 30 is in the first position P1 where it is horizontal, the first surface 30a faces vertically upward, and the second surface 30b faces vertically downward.

[0017] As shown in FIG. 2, the projector 10 can be attached to the second surface 30b of the fixing member 30 by means of fixing screws 31 (attachment member). The projector 10 is attached to the fixing member 30 with the bottom surface 10E facing the second surface 30b. That is, as shown in FIG. 3, the projector 10 is attached in a state suspended from the fixing member 30 in a first attitude P1 which is a horizontal position, and is attached in an inverted state, that is, with the top surface 10D of the projector 10 facing vertically downward. Note that the front surface 10A including the projection lens 11 of the projector 10 is provided in a state in which it protrudes forward beyond the front end 30c of the fixing member 30 when attached to the fixing member 30.

[0018] The fixing member 30 has screw holes (not shown) through which fixing screws 31 can be inserted from the first surface 30a side, which are provided so as to penetrate in the thickness direction of the fixing member 30. The positions of the screw holes of the fixing member 30 are set to positions corresponding to screw holes (not shown) formed in the lower surface 10E of the projector 10 that is to be attached to the second surface 30b. In other words, in the projector mounting device 20, the fixing screws 31 are screwed into the multiple screw holes in the lower surface 10E of the projector 10 from the first surface 30a side of the fixing member 30, thereby fixing the projector 10 to a predetermined position on the fixing member 30.

[0019] 5, the first attitude P1 of the fixing member 30 is an attitude in which the first surface 30a and the second surface 30b of the fixing member 30 are horizontal. When the fixing member 30 is in the first attitude P1, the projector 10 is attached to the second surface 30b of the fixing member 30 so that the axial direction of the projection axis CA faces diagonally downward with respect to the horizontal direction SL. When the fixing member 30 is in the first attitude P1, the projection light T1 (see FIG. 8) of the projector 10 is projected onto the side (front) of the room.

[0020] 4, the second attitude P2 of the fixing member 30 is an attitude in which the fixing member 30 is rotated in the circumferential direction so that the axial direction of the projection axis CA is tilted vertically upward from the horizontal, and the plane directions of the first surface 30a and the second surface 30b of the fixing member 30 are in a position where the rotation angle θ with respect to the horizontal direction SL is 90 degrees. When the fixing member 30 is in the second attitude P2, the projection light T2 (see FIG. 8) of the projector 10 is projected onto the ceiling surface of the room. Furthermore, in the second attitude P2, the centers of gravity of the fixing member 30 and the projector 10 are located vertically below the rotation axis C1.

[0021] As shown in FIG. 3 , the fixing member 30 is provided with an auxiliary plate 32 spaced apart from the second surface 30b. The auxiliary plate 32 is supported by a pair of left and right connecting plates 33 that extend from both sides of the second surface 30b of the fixing member 30 in the left-right direction X2 in a direction away from the second surface 30b, and is thereby fixed to the fixing member 30. The distance between the second surface 30b of the fixing member 30 and the auxiliary plate 32 is set to be greater than at least the height of the projector 10. An internal space R surrounded by the fixing member 30, the auxiliary plate 32, and the pair of connecting plates 33 serves as a storage area for the projector 10 attached to the second surface 30b of the fixing member 30. Both sides of this internal space R in the front-rear direction X1 are connected to the outside, so that when attaching or detaching the projector 10 to or from the fixing member 30, the projector 10 can be inserted into or removed from the internal space R from the front or rear.

[0022] As shown in Fig. 5, the connecting plate 33 is disposed at a position close to the front end 30c of the fixing member 30. A rotary shaft member 40 is provided on an outer surface 33a (see Fig. 3) of the connecting plate 33 on the outer side in the left-right direction, and is interposed between the connecting plate 33 and the side plate 50 and serves as the rotation axis C1 of the fixing member 30. In other words, the connecting plate 33 connected to the fixing member 30 rotates about the rotation axis C1 as the rotary shaft member 40 rotates. Here, the fixing member 30, auxiliary plate 32, and connecting plate 33 are referred to as a fixing unit 30A as needed.

[0023] 3, the rotating shaft member 40 has a first rotating plate 41 connected to the connecting plate 33 of the fixed unit 30A, a second rotating plate 42 provided coaxially with the first rotating plate 41 and connected to the side plate 50, and a bearing 43 that rotates around a central axis between the first rotating plate 41 and the second rotating plate 42. The rotating shaft members 40 are provided on both the left and right sides of the fixed unit 30A. The rotating shaft members 40 on both the left and right sides are arranged coaxially with a rotation axis C1.

[0024] As shown in FIGS. 2 to 5, the side panels 50 are arranged on both the left and right sides of the fixed unit 30A in the left-right direction X2. The side panels 50 are made of plate-shaped members and are provided in a range that covers, from the left and right, the exhaust port 12 of the projector 10 located at least within the rotation region of the fixed member 30 from the first position P1 to the second position P2. The pair of side panels 50 are arranged parallel to each other, with their respective plate surfaces intersecting the rotation axis C1 at right angles in a top view. The side panels 50 are formed so that a front lower end portion 50a protrudes forward and a rear upper end portion 50b is vertically higher than the front upper end portion 50c in a side view. The lower ends of the side panels 50 are connected to the base stand 60.

[0025] The projector mounting device 20 of this embodiment is provided with a front panel member 53 that connects the front lower end portions 50a of the pair of side panels 50 in the left-right direction X2 and faces forward. The front panel member 53 is provided with two speakers 54. The speakers 54 output sound in accordance with the image of the projector 10.

[0026] The base pedestal 60 is a horizontally extending plate-like member that connects and supports the lower ends of the pair of left and right side panels 50. Four wheels 61 are provided on the underside 60a of the base pedestal 60. The wheels 61 allow the projector mounting device 20 to move on the floor.

[0027] As shown in Figures 4 to 6, the pair of side panels 50 have openings 51 (51A, 51B) at a first position 50A facing the exhaust port 12 of the projector 10 when the fixing member 30 is in a first position P1 and the projector 10 is fixed to the fixing member 30, and at a second position 50B facing the exhaust port 12 of the projector 10 when the fixing member 30 is in a second position P2.

[0028] 5, the first opening 51A is formed in a circular shape in a side view, and is disposed on the rear side of the rotation axis C1 (rotation axis member 40). When the fixing member 30 is in the first attitude P1, the exhaust port 12 of the projector 10 is exposed in the left-right direction X2 from the first opening 51A, and the exhaust port 12 and the space on the outer surface side of the side panel 50 communicate with each other through the first opening 51A.

[0029] 6, the second opening 51B is formed in a generally trapezoidal shape with the bottom side longer than the top side in a side view, and is disposed vertically below the rotation axis C1 (rotation axis member 40). When the fixing member 30 is in the second attitude P2, the exhaust port 12 of the projector 10 is exposed in the left-right direction X2 from the second opening 51B, and the exhaust port 12 and the space on the outer surface side of the side panel 50 communicate with each other through the second opening 51B. A second opening area S2 of the second opening 51B provided at the second position 50B of the side panel 50 is larger than the opening area S1 of the first opening 51A provided at the first position 50A.

[0030] 7, when the fixing member 30 is in a position fixed at a rotation angle between the first position P1 and the second position P2, no opening is formed in a position facing the exhaust port 12 of the projector 10, but the first opening 51A and the second opening 51B that are arranged near the exhaust port 12 at this time are used for exhaust. Alternatively, even when the fixing member 30 is in a position fixed at a rotation angle between the first position P1 and the second position P2, the openings 51A and 51B may be set so that at least a portion of the exhaust port 12 of the projector 10 is exposed to either the first opening 51A or the second opening 51B.

[0031] 5, when the fixing member 30 is in the first position P1, the distance L0 from the projection lens 11 of the projector 10 to the rotation axis C1 is shorter than the distance L1 from the projection lens 11 to the first opening 51A. As shown in Fig. 6, when the fixing member 30 is in the second position P2, the distance L0 from the projection lens 11 of the projector 10 to the rotation axis C1 is shorter than the distance L2 from the projection lens 11 to the second opening 51B.

[0032] As shown in FIGS. 1 and 4 to 6 , one of the pair of side plates 50 has a plurality of circular engagement holes 52, 52, ... spaced at regular intervals in the circumferential direction along an arc centered on the rotation axis C1. The engagement holes 52 penetrate the side plate 50 in the thickness direction. The positions of the engagement holes 52 overlap with the trajectory of the locking pin 36a of the locking stopper 36 (shown in FIG. 2 ) provided on the fixing member 30 (described later), which rotates together with the fixing member 30. The engagement holes 52 are located rearward of the first opening 51A and the second opening 51B of the side plate 50, but do not overlap with these openings 51A and 51B. The locking pin 36a of the locking stopper 36 selectively engages with one of the engagement holes 52, thereby changing the position of the fixing member 30 at a predetermined rotation angle and fixing it.

[0033] Specifically, the engagement holes 52 include a first engagement hole 52A that secures the fixing member 30 in a first position P1, a second engagement hole 52B that secures the fixing member 30 in a second position P2, and a plurality of third engagement holes 52C between the first engagement hole 52A and the second engagement hole 52B. The third engagement holes 52C secure the fixing member 30 in a position that has a rotation angle between the first position P1 and the second position P2.

[0034] In this embodiment, the engagement hole 52 is provided in only one of the side plates 50, but the engagement hole 52 may be provided in both of the pair of side plates 50. In this case, the engagement holes 52 on both the left and right sides are arranged coaxially on an axis parallel to the rotation axis C1. When the engagement holes 52 are provided in both the left and right side plates 50 in this way, the locking stoppers 36 are also provided on both the left and right sides of the fixing member 30.

[0035] Furthermore, the circumferential spacing and number of adjacent engaging holes 52 provided in one side panel 50 can be set as desired, and by changing the spacing and number, it is possible to change the rotation angle of the projector 10 attached to the fixing member 30. Furthermore, in this embodiment, the engaging holes 52 are through holes that pass through the side panel 50, but they are not limited to through holes and may be blind holes that do not pass through.

[0036] As shown in FIG. 2, the first surface 30a of the fixing member 30 is provided with a locking stopper 36 having a locking pin 36a that can protrude to both sides in the direction of the rotation axis C1, and a rotation operating member 37 for rotating the fixing member 30.

[0037] The locking stopper 36 is disposed behind the first surface 30a of the fixing member 30, at a position closer to one of the side panels 50 where the engagement hole 52 is provided. The locking stopper 36 has a locking pin 36a that is movable in the left-right direction X2.

[0038] The locking pin 36a is provided so as to be able to protrude outward from a side end 30e (see FIG. 3) of the fixing member 30 when viewed from a direction perpendicular to the first surface 30a of the fixing member 30. The locking pin 36a can be manually moved forward and backward using a pin operating member 36b that protrudes outward from a portion of the locking pin 36a. The locking pin 36a can be selectively engaged with one of a plurality of engagement holes 52 provided in the side panel 50. The fixing member 30 is fixed in a position at a rotation angle when the locking pin 36a is engaged. When the locking pin 36a is removed from the engagement hole 52, the fixing member 30 can be rotated circumferentially around the rotation axis C1.

[0039] 2, the rotation operation member 37 is provided at a position closer to the rear end 30d of the first surface 30a of the fixed member 30. The rotation operation member 37 is a rod-like member with a U-shape, and protrudes from the first surface 30a at a height that does not interfere with the first gripping member 38, which will be described later, when the fixed member 30 is rotated.

[0040] As shown in Fig. 1, the rear portion of the projector mounting device 20 is provided with a first gripping member 38 and a detachable second gripping member 39 located vertically above the first gripping member 38. The first gripping member 38 and the second gripping member 39 are hand-held rod-shaped members that extend in the left-right direction X2. Figs. 1, 4, and 8 show the second gripping member 39 attached. Figs. 2, 3, 5, 6, and 7 show the second gripping member 39 removed.

[0041] 2 and 4, the first gripping member 38 is fixed to the rear upper end portions 50b of the pair of side plates 50 in a state where they are connected to each other in the left-right direction X2. The first gripping member 38 is disposed on the opposite side of the first surface 30a of the fixed member 30 in the second attitude P2, across the fixing screw 31 provided on the first surface 30a. As described above, the first gripping member 38 is disposed at a position that avoids the rotation operating member 37 when the fixed member 30 is rotated in the circumferential direction.

[0042] 1 and 4, arm members 55 extending vertically upward from the rear upper end portions 50b of each of the pair of side panels 50 are detachably provided. Second gripping members 39 are fixed to the pair of arm members 55 with the upper ends of the arm members 55 connected to each other in the left-right direction X2. In other words, the second gripping member 39 is positioned vertically above the first gripping member 38. As shown in FIG. 8, when an operator M moves the projector mounting device 20, he or she can move it by holding the first gripping member 38 and the second gripping member 39.

[0043] Next, the operation of the projector mounting device 20 will be described.

[0044] The projector mounting device 20 of this embodiment includes a fixing member 30 having a first surface 30a and a second surface 30b opposite the first surface 30a, on which a projector 10 can be mounted on the second surface 30b, and a rotation shaft member 40 that rotatably supports the fixing member 30 from a first position P1, in which the second surface 30b is horizontal, to a second position P2 that has a different rotation angle from the first position P1. In the first position P1, the projector 10 is mounted on the fixing member 30 such that the axial direction of the projection axis CA of the projector 10 is tilted vertically downward with respect to the horizontal direction SL with respect to the second surface 30b that faces vertically downward. The second position P2 of the fixing member 30 is a position rotated 90 degrees with respect to the horizontal direction SL so that the axial direction of the projection axis CA is tilted vertically upward from the horizontal. Therefore, in this embodiment, the fixing member 30 to which the projector 10 is attached is provided rotatably by the rotary shaft member 40 between a first position P1, which is a horizontal position, and a second position P2. Therefore, the projector 10 can be fixed at a position of any rotation angle between the first position P1 and the second position P2 and project light. When the fixing member 30 is in the first position P1, in which the fixing member 30 is in a horizontal position, the axial direction of the projection axis CA of the projector 10 fixed to the fixing member 30 is tilted downward with respect to the horizontal direction SL. Therefore, when the fixing member 30 is in the second position P2, the axial direction of the projection axis CA of the projection light projected from the projector 10 is tilted forward with respect to the vertical direction. As a result, even when the projector 10 is in the second position P2 in which the projection light is projected toward the ceiling, the projection light is not projected toward the operator M, who is located behind the projector mounting device 20 and on the opposite side from the projection portion of the projector 10. This prevents the projection light from directly entering the eyes of the operator M, and prevents the operator M from feeling dazzled by the projection light. Furthermore, in this embodiment, the projector 10 is attached to the second surface of the fixing member 30, which is a simple attachment structure, and therefore the attachment can be performed without being limited to the configuration of the projector to be attached, making it versatile.

[0045] In this embodiment, the second surface 30b of the fixing member 30 is fixed to the bottom surface 10E of the projector 10. A typical projector is configured to project projection light upward with respect to the horizontal direction SL. In this embodiment, by fixing the bottom surface 10E of such a typical projector 10 to the second surface 30b of the fixing member 30, the projector 10 is fixed in an upside-down state when the fixing member 30 is in a first position P1, and when the fixing member 30 is in a second position P2 in which the fixing member 30 is oriented vertically, the axial direction of the projection axis CA of the projection light projected from the projector 10 is tilted forward with respect to the vertical direction.

[0046] Furthermore, in this embodiment, a rotation operation member 37 for rotating the fixed member 30 is fixed to the fixed member 30. In this case, the fixed member 30 can be rotated by holding the rotation operation member 37, which makes the rotation operation easier and allows the attitude of the projector 10 to be easily changed.

[0047] The projector mounting device 20 according to this embodiment includes a pair of side panels 50 on the left and right in the rotation axis direction that intersects with the rotation axis C1 of the fixing member 30 and is rotatably supported relative to the fixing member 30 via a rotation axis member 40; a first gripping member 38 and a second gripping member 39 that are provided on the side panels 50 and can be held by hand; and a fixing screw 31 that is provided on the first surface 30a side of the fixing member 30 and is used to mount the projector 10 to the second surface 30b. The first gripping member 38 and the second gripping member 39 are arranged on the opposite side from the first surface 30a, with the fixing screw 31 that is provided on the fixing member 30 in the second orientation P2 between them. In this case, an operator M can move the projector mounting device 20 by holding the first gripping member 38 or the second gripping member 39. In this embodiment, the first gripping member 38 and the second gripping member 39 are positioned on the opposite side of the first surface 30a across the fixing screw 31 provided on the fixing member 30 in the second position P2, so that the projected light is not projected toward the operator M holding the gripping members 38, 39 in the second position P2, and the projected light can be more reliably prevented from directly entering the eyes of the operator M.

[0048] Furthermore, in this embodiment, there is provided a base pedestal 60 that supports the lower ends of the pair of left and right side panels 50, and wheels 61 that are provided on the lower surface 60a of the base pedestal 60. In this case, when moving the projector 10 attached to the fixing member 30, the wheels 61 that are fixed to the base pedestal 60 are provided, so that the projector 10 can be easily transported.

[0049] In this embodiment, the first surface 30a of the fixing member 30 is provided with locking stoppers 36 that can protrude to both sides in the rotation axis direction. The side plate 50 is provided with a plurality of engagement holes 52 that engage with the locking stoppers 36 at positions that correspond to the trajectory of the locking stoppers 36 that rotate together with the fixing member 30. In this case, the fixing member 30 can be fixed in a position at the rotation angle when the locking stoppers 36 are engaged, and when the locking stoppers 36 are pulled out of the engagement holes 52, the fixing member 30 can be rotated in the circumferential direction around the rotation axis.

[0050] In this embodiment, the side panel 50 has a first engagement hole 52A that fixes the fixing member 30 in the first position P1 and a second engagement hole 52B that fixes the fixing member 30 in the second position P2. In this case, the fixing member 30 can be reliably held in both the first position P1 and the second position P2.

[0051] This embodiment also includes the above-described projector mounting device 20 and the projector 10 that projects projection light.

[0052] According to at least one of the embodiments described above, when projector 10 projects upward, the projection light is not projected toward operator M, thereby preventing operator M from feeling dazzled by the projection light.

[0053] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents.

[0054] In the above-described embodiment, the side panel 50 (side member) only needs to intersect with the rotation axis C1 about which the fixing member 30 rotates, so it is acceptable for the surface direction of the side panel 50 to be configured not to be perpendicular to the rotation axis C1 as in this embodiment.

[0055] Furthermore, in this embodiment, the side panels 50 arranged on both sides of the fixing member 30 (projector 10) in the left-right direction X2 are targeted as side panel members in which the opening 51 is provided, but the side panels 50 are not limited to being side panel members. For example, if the exhaust port 12 of the projector 10 is provided on the rear surface 10B or the top surface 10D, a rear panel or a bottom panel (corresponding to the base stand 60 in this embodiment) may be provided on the rear side of the projector mounting device 20, and the opening may be provided on this rear panel or bottom panel. In short, the side panel members are not limited to side panels.

[0056] In addition, in this embodiment, the fixing screws 31 are used as a configuration for attaching the projector 10 to the fixing member 30, but this is not limitative and other configurations can also be used. The point is that the attachment member should be provided on the first surface 30a side of the fixing member 30.

[0057] Furthermore, the openings provided in the side panel 50 are not limited to the configuration in which one opening (first opening 51A, second opening 51B) is provided in each of the first position P1 and the second position P2 as in the above-described embodiment. For example, the opening may be a collection of many holes, or may be a single opening having both portions facing the exhaust port 12 of the projector 10 in the first position P1 and the second position P2.

[0058] A projector mounting device according to one aspect of the present invention may have the following configuration. A projector mounting device according to one embodiment of the present invention comprises a fixing member having a first surface and a second surface opposite the first surface, the second surface being capable of mounting a projector to the second surface, and a rotating shaft member rotatably supporting the fixing member from a first position in which the second surface is horizontal to a second position having a different rotation angle from the first position, wherein in the first position, the projector is mounted on the fixing member such that the axial direction of the projection axis of the projector is tilted downward relative to the horizontal direction with respect to the second surface facing downward in the vertical direction, and the second position of the fixing member is a position above horizontal and rotated 90 degrees relative to the horizontal direction.

[0059] In one aspect of the projector mounting device of the present invention, the second surface of the fixing member may be fixed to a lower surface of the projector.

[0060] In the projector mounting device according to one aspect of the present invention, a rotation operation member for rotating the fixing member may be fixed to the fixing member.

[0061] One embodiment of the projector mounting device of the present invention may include a pair of side members on the left and right sides in the direction of the rotation axis that intersect the rotation axis of the fixed member and are rotatably supported on the fixed member via the rotation axis member, a hand-held gripping member that is provided on the side members, and a mounting member that is provided on the first surface side of the fixed member for mounting the projector to the second surface, wherein the gripping members are positioned on the opposite side of the first surface, sandwiching the mounting member that is provided on the fixed member in the second attitude.

[0062] The projector mounting device according to one aspect of the present invention may be configured to include a base that supports the lower ends of the pair of left and right side members, and wheels that are provided on the underside of the base.

[0063] In one embodiment of the projector mounting device of the present invention, the first surface of the fixing member may be provided with a locking stopper that can protrude to both sides in the direction of the rotation axis, and the side member may be provided with a plurality of engagement holes that engage with the locking stopper at positions corresponding to the trajectory of the locking stopper that rotates together with the fixing member.

[0064] In one aspect of the projector mounting device of the present invention, the engagement holes may be configured to have a first engagement hole that fixes the fixing member in the first position and a second engagement hole that fixes the fixing member in the second position.

[0065] A projection system according to an aspect of the present invention may have the following configuration. A projection system according to one aspect of the present invention includes the projector mounting device according to one aspect of the present invention and the projector that projects projection light. [Explanation of symbols]

[0066] 1...projection system, 10...projector, 11...projection lens, 12...exhaust port, 20...projector mounting device, 30...fixing member, 31...fixing screw 8 (mounting member), 36...locking stopper, 36a...locking pin, 37...rotation operation member, 38...first gripping member, 39...second gripping member, 40...rotation shaft member, 50...side panel (side member), 50A...first position, 50B...second position, 51...opening, 51A...first opening, 51B...second opening, 51C...third opening, 52, 52A, 52B...engagement holes, 60...base frame (base), 61...wheel, C1...rotation shaft, CA...projection axis, P1...first position, P2...second position, S1...first opening area, S2...second opening area, X1...front-rear direction, X2...left-right direction

Claims

1. a fixing member having a first surface and a second surface opposite to the first surface, the fixing member being provided so that a projector can be attached to the second surface; a rotating shaft member that rotatably supports the fixed member from a first position in which the second surface is horizontal to a second position having a rotation angle different from the first position; a support member that rotatably supports the fixed member; a hand-held gripping member provided on the support member; Equipped with the projector is attached to the fixing member such that, in the first position, an axial direction of a projection axis of the projector is inclined vertically downward with respect to the horizontal direction with respect to the second surface that faces vertically downward; the second attitude of the fixing member is a position rotated by 90 degrees with respect to the horizontal direction so that the axial direction of the projection axis is tilted vertically upward from the horizontal direction, the rotating shaft member is provided forward of the gripping member in a front-rear direction perpendicular to the rotational axis direction of the rotating shaft member as viewed from the vertical direction, a movable range of a projection lens of the projector that rotates from the first position to the second position is a range in front of the rotation shaft member;

2. the second surface of the fixing member is fixed to a lower surface of the projector; 2. The projector mounting device according to claim 1.

3. A rotation operation member for rotating the fixed member is fixed to the fixed member.

3. The projector mounting device according to claim 1, wherein the projector is mounted on a mounting surface of a projector.

4. The support member is a pair of left and right side members in the rotation axis direction that intersect with the rotation axis of the fixed member and are rotatably supported relative to the fixed member via the rotation axis member; The gripping member is provided on the side surface member, a mounting member provided on the first surface side of the fixing member for mounting the projector on the second surface; the gripping member is disposed on the opposite side of the first surface across the mounting member provided on the fixed member in the second posture; 4. The projector mounting device according to claim 1, wherein the projector is mounted on a mounting surface of a projector.

5. a base supporting lower ends of the pair of left and right side members; and wheels provided on the underside of the base.

5. The projector mounting device according to claim 4.

6. The first surface of the fixing member is provided with a locking stopper that can protrude to both sides in the rotation axis direction, The side surface member is provided with a plurality of engagement holes that engage with the locking stopper at positions corresponding to a trajectory of the locking stopper that rotates together with the fixing member.

6. The projector mounting device according to claim 4 or 5.

7. The side surface member has a first engagement hole that fixes the fixing member in the first position and a second engagement hole that fixes the fixing member in the second position.

7. The projector mounting device according to claim 6.

8. A projector mounting device comprising: the projector mounting device according to any one of claims 1 to 7; and the projector that projects projection light. A projection system characterized by:

Images