Projector cover components

Abstract

The present invention provides a projector cover component that is easy to use without compromising the projector's functionality, and that improves the projector's appearance by covering it with a cover component made of wood. [Solution] A projector having an outer casing 20, a power supply unit 32 disposed in the outer casing 20, and an image light generation module controlled by the power supply unit 32 is covered by a cover, the outer surface of which is made of wood, and has a power supply unit hole 41 that overlaps the power supply unit 32 in a plan view. The power supply unit hole 41 has an opening larger than the periphery of the power supply unit 32.

Description

Technical Field

[0001] The present invention relates to a cover member for a projector.

Background Art

[0002] Conventionally, there is known a projector including a projector main body and a carrying case for housing the projector main body (see, for example, Patent Document 1). In this case, the projector has a light transmission port, a ventilation part, etc. so that it can project while being housed in the carrying case. Further, as shown in Patent Document 2, there is a case where the housing of an electronic device such as a projector is made of only wood or a woody material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the structure disclosed in Patent Document 1 above, the appearance is the carrying case itself, so the appearance property deteriorates and it is vulnerable to external impacts. Further, when the projector main body is housed in the carrying case, it is difficult to operate a power switch or the like provided on the projector main body, and there is a problem that it is not user-friendly.

[0005] Further, when the housing of an electronic device itself is made of only wood or a woody material as in Patent Document 2, although the appearance is better than that of Patent Document 1, it is difficult to attach parts to the housing, and the function as an electronic part such as a projector is restricted, so there is room for improvement in that regard. [Means for solving the problem]

[0006] According to one aspect of the present invention, a projector cover member is provided that covers a projector having an outer casing, a power supply unit disposed in the outer casing, and an image light generation module controlled by the power supply unit, wherein at least the outer surface is formed of wood, and has a first hole that overlaps the power supply unit in a plan view, and the first hole has an opening larger than the periphery of the power supply unit. [Brief explanation of the drawing]

[0007] [Figure 1] A perspective view, seen from the front at an oblique angle, showing the configuration of a cover member housing a projector according to an embodiment of the present invention. [Figure 2] An exploded perspective view, taken from a diagonal rear angle, showing the projector before it is housed in the cover component. [Figure 3] A perspective view from the front, showing the configuration of the projector. [Figure 4] Front view of the cover component as seen from the front. [Figure 5] Rear view of the cover component, seen from the rear. [Figure 6] A side view of the cover component housing the projector, seen from the right side. [Figure 7] A side view of the cover component housing the projector, seen from the left side. [Figure 8] A plan view of the cover component housing the projector, seen from below. [Figure 9] A horizontal cross-sectional view of the speaker opening, seen from above and below. [Figure 10] Cross-sectional view of the intake and exhaust ports as seen from the front and rear directions. [Modes for carrying out the invention]

[0008] One embodiment of the present invention will be described below with reference to the drawings. In the following drawings, the dimensions of each component may be shown on a different scale to make them easier to see.

[0009] As shown in Figure 1, the projector cover member of this embodiment (hereinafter simply referred to as "cover member 1") covers the projector 2.

[0010] In each figure, the Z-axis direction, as indicated as appropriate, is the vertical direction with +Z being the upper side and -Z being the lower side. The X-axis and Y-axis directions are horizontal directions perpendicular to the Z-axis direction and are also perpendicular to each other. In the following explanation, the direction parallel to the Z-axis direction will be called the vertical direction Z, the direction parallel to the X-axis direction will be called the front-back direction X, and the direction parallel to the Y-axis direction will be called the left-right direction Y. Furthermore, the +Y direction of the Y-axis direction will be called the left side, and the -Y direction of the Y-axis direction will be called the right side. Furthermore, the +X direction of the X-axis direction will be called the front side, and the -X direction of the X-axis direction will be called the rear side.

[0011] Figure 1 is a perspective view taken from the front at an angle, showing the configuration of the cover member 1 housing the projector 2 of this embodiment. Figure 2 is an exploded perspective view taken from the rear at an angle, showing the projector 2 of this embodiment before it is housed in the cover member 1. As shown in Figures 1 and 2, the projector 2 of this embodiment projects an image onto a screen (not shown). The projector 2 is a stationary projector used by being installed on a mounting surface G, and is a short-throw projector. The mounting surface G is a surface facing upwards. The mounting surface G is, for example, a flat surface perpendicular to the vertical direction Z. The projector 2 has an outer casing 20 and an image light generation module (not shown) controlled by a power supply unit 32 located in the outer casing 20. The image light generation module includes a light source, a light guide system, and a projection optical device.

[0012] FIG. 3 is a perspective view of the projector 2 as seen obliquely from the front. FIG. 4 is a front view of the cover member 1 as seen from the front. FIG. 5 is a rear view of the cover member 1 as seen from the rear. FIG. 6 is a side view of the cover member 1 housing the projector 2 as seen from the right side. FIG. 7 is a side view of the cover member 1 housing the projector 2 as seen from the left side. FIG. 8 is a plan view of the cover member 1 housing the projector 2 as seen from the bottom. FIG. 9 is a horizontal cross-sectional view of the speaker holes 44 and 45 as seen in the vertical direction Z. FIG. 10 is a cross-sectional view of the intake port hole 42 and the exhaust port hole 46 as seen in the front-rear direction X.

[0013] As shown in FIGS. 2 and 3, the exterior housing 20 constitutes the exterior of the projector 2. The exterior housing 20 is in the shape of a substantially rectangular parallelepiped box formed by a plurality of wall surfaces. The exterior housing 20 has a front surface 21, a rear surface 22, an upper surface 23, a lower surface 24, a right side surface 25, and a left side surface 26.

[0014] The front surface 21 is a wall surface facing the rear (-Y direction) in the left-right direction Y that intersects the vertical direction Z, and the rear surface 14 is a wall surface facing the front (+Y direction) in the left-right direction Y. The upper surface 23 is a wall surface facing the +Z direction in the vertical direction Z, and the lower surface 24 is a wall surface facing the lower (-Z direction) in the vertical direction Z. The right side surface 25 is a wall surface facing the front (+X direction) in the front-rear direction X that intersects the vertical direction Z, and the left side surface 26 is a wall surface facing the rear (-X direction) in the front-rear direction X.

[0015] A projection port 31 through which light passes is provided on the front surface 21. The projection port 31 is arranged on the upper +Z side in the vertical direction Z on the front surface 21.

[0016] On the rear surface 22, a power supply unit 32 is provided. The power supply unit 32 has a first connector unit 32A for connecting an external power supply and a power switch unit 32B for turning on and off the power of the projector 2. The power supply unit 32 is arranged on the upper side (+Z direction) in the vertical direction Z on the rear surface 22. The first connector unit 32A and the power switch unit 32B are exposed on the rear side (-X direction) of the exterior housing 20. The power supply unit 32 supplies the power supplied from the external power supply connected to the projector 2 to each part of the projector 2.

[0017] The outer shapes of the upper surface 23 and the lower surface 24 are each substantially square in plan view. As shown in FIG. 8, an air intake port 33 (air intake and exhaust port) for introducing the air outside the exterior housing 20 into the interior of the exterior housing 20 is provided on the lower surface 24.

[0018] The air intake port 33 is arranged on the front side (+X direction) in the front-rear direction X on the lower surface 24. The air intake port 33 is constituted by a plurality of hole portions 33a penetrating the lower surface 24 in the vertical direction Z. The hole portions 33a are, for example, rectangular holes long in the left-right direction Y. In the present embodiment, rows in which a large number of hole portions 33a are arranged in the front-rear direction X are arranged in two rows in the left-right direction Y. The air introduced into the interior of the exterior housing 20 from the air intake port 33 is sucked inside by a fan (not shown).

[0019] As shown in FIG. 2, a plurality of leg portions 24b are provided on the lower surface 24. The plurality of leg portions 24b project downward (-Z direction) from the four corner portions of the lower surface 24. The lower end portions of each leg portion 24b are in contact with the installation surface G. In a state where the projector 2 is housed in the cover member 1, the lower end portions of each leg portion 24b are in contact with the lower cover 12 of the cover member 1.

[0020] The right side surface 25 has an outline that is roughly rectangular, elongated in the front-to-back direction X when viewed from the right side (+Y direction). The right side surface 25 is provided with a right speaker hole 34A for emitting sound from a speaker (not shown) located inside the projector 2. The right speaker hole 34A is located on the rear side (-X direction) of the right side surface 25. The right speaker hole 34A has a vertically elongated shape that extends in the up-down direction Z.

[0021] A second connector section 36 for connecting external devices that output image signals, such as computers, is provided on the right side 25. The second connector section 36 is exposed on the right side (+Y direction) of the cover body 10.

[0022] As shown in Figure 3, the left side surface 26 has an outline that is roughly rectangular, elongated in the front-to-back direction X when viewed from the right side (+Y direction). The left side surface 26 is provided with a left speaker hole 34B that emits sound from a speaker (not shown) located inside the projector 2. The left speaker hole 34B is located on the opposite side of the right speaker hole 34A in the left-to-right direction Y, and is positioned towards the rear (-X direction) of the left side surface 26. The left speaker hole 34B has a vertically elongated slit shape that extends in the up-to-down direction Z.

[0023] On the left side 26, there is an exhaust port 35 (intake and exhaust port) that discharges the air inside the outer casing 20, including the air introduced into the outer casing 20 from the intake port 33, to the outside of the outer casing 20.

[0024] The exhaust port 35 is located approximately in the center of the left side surface 26 in the front-to-back direction X and the up-to-down direction Z. The exhaust port 35 is composed of a plurality of holes 35a that penetrate the left side surface 26 in the thickness direction (left-to-right direction Y). The holes 35a are, for example, rectangular holes that are long in the front-to-back direction X. In this embodiment, there are two rows of numerous holes 35a arranged in the up-to-down direction Z, arranged in the front-to-back direction X.

[0025] As shown in Figures 1, 2, and 4-8, the cover member 1 covers five sides of the projector 2, excluding the front 21. The cover member 1 comprises an upper cover 11 (second wall), a lower cover 12 (first wall), a rear cover 13, a right-side cover 14, and a left-side cover 15.

[0026] The upper cover 11 is a wall portion that faces the upper surface 23 of the projector 2 from above (+Z direction), and the lower cover 12 is a wall portion that faces the lower surface 24 of the projector 2 from below (-Z direction). The upper cover 11, the lower cover 12, and both side covers 14 and 15 constitute a cover body 10 that is integrally formed in a rectangular cylindrical cross-section.

[0027] The rear cover 13 is a wall portion that faces the rear surface 22 of the projector 2 from the rear (-X direction). The rear cover 13 is detachably provided to close the opening on the rear side (-X direction) of the cover body 10. In other words, the rear cover 13 functions as a lid.

[0028] The right-side cover 14 is a wall portion that faces the right side surface 25 of the projector 2 from the right (+Y direction), and the left-side cover 15 is a wall portion that faces the left side surface 26 of the projector 2 from the left (-Y direction).

[0029] The material used for cover member 1 is wood. Examples of wood include cypress, Japanese cypress, paulownia, teak, mahogany, cedar, zelkova, pine, and cherry. The wood also includes synthetic wood. Furthermore, the surface (outer surface) of cover member 1 made of wood may be further treated by applying a wood-grain sheet or printing. For parts of the cover member with a small surface area, materials other than wood may be used.

[0030] Each cover of the cover member 1 is arranged so that the wood grain on each surface (outer surface) is approximately parallel and facing the same direction. For example, it is preferable that the direction of the wood grain be in the front-to-back direction X. In particular, it is preferable that the wood grain directions of the upper cover 11, the right cover 14, and the left cover 15 are aligned in the same direction. When the direction of the wood grain is in the front-to-back direction X, it is approximately parallel to the boundary edge of the cover body 10, resulting in a good appearance. Alternatively, it is preferable that the wood grain be in a direction perpendicular to the front-to-back direction X, that is, the wood grain of the upper cover 11, the lower cover 12, and the rear cover 13 be in the left-to-right direction Y, and the wood grain of the right cover 14 and the left cover 15 be in the up-to-down direction Z. This improves the appearance of the cover member 1, enhancing its aesthetic appeal and design.

[0031] As shown in Figures 4 and 5, the rear cover 13 has a power supply unit hole 41 (first hole) that overlaps with the power supply unit 32 provided on the rear surface 22 of the projector 2 when viewed from the rear (-X direction) in the front-to-back direction X. The power supply unit hole 41 has an opening larger than the periphery of the power supply unit 32. The power supply unit hole 41 is located on the upper side (+Z direction) in the vertical direction Z of the rear cover 13. The power supply unit hole 41 forms an elongated hole extending in the left-to-right direction Y. At least the first connector unit 32A and the power switch unit 32B of the power supply unit 32 are exposed to the rear (-X direction) through the power supply unit hole 41. Users of the projector 2 can access the first connector unit 32A and the power switch unit 32B through the power supply unit hole 41 of the cover member 1 to turn the power on and off, etc.

[0032] The lower cover 12 is positioned to cover the mounting surface of the lower surface 24 of the projector 2. As shown in Figure 8, a notch 12b is formed on the outer edge of the lower cover 12 to reduce the surface area of ​​the lower surface. In other words, the surface area of ​​the lower cover 12 is set to be smaller than the surface area of ​​the upper cover 11.

[0033] The lower cover 12 is positioned on the front side (+X direction) in a plan view from below (-Z direction) and has intake holes 42 (third holes) facing the intake port 33 provided on the lower surface 24 of the projector 2. The intake holes 42 are arranged in pairs, spaced apart in the left-right direction Y. Each intake hole 42 is, for example, a rectangular hole that is long in the left-right direction Y. Air introduced into the interior of the outer casing 20 from the intake port 33 reaches the intake port 33 through the intake holes 42 of the cover member 1.

[0034] As shown in Figure 10, the intake port 42 constitutes a silencer based on the Holmhertz principle, having a first air chamber 42A provided on the inner opening 42a side facing the intake port 33, and a first throat portion 42B provided on the outer opening 42b side of the first air chamber 42A, with a smaller cross-sectional area than the first air chamber 42A. The first air chamber 42A extends along the hole axis direction (vertical direction Z) of the intake port 42 and has the same cross-section along the hole axis direction. The cross-sectional area of ​​the first air chamber 42A is larger than the cross-sectional area of ​​the intake port 33. That is, the cross-sectional area of ​​the inner opening 42a of the intake port 42 is larger than the cross-sectional area of ​​the intake port 33. The first throat portion 42B extends along the hole axis direction (vertical direction Z) of the intake port 42 and has the same cross-section along the hole axis direction. The cross-sectional area of ​​the first throat portion 42B is smaller than the cross-sectional area of ​​the first air chamber 42A and is equal to the cross-sectional area of ​​the intake port 33. That is, the cross-sectional area of ​​the outer opening 42b of the intake port hole portion 42 is smaller than the cross-sectional area of ​​the first air chamber 42A and is equal to the cross-sectional area of ​​the intake port 33.

[0035] Sound-absorbing material 43 is provided on the inner surface of the first throat section 42B, for example, by being attached. Examples of materials for the sound-absorbing material 43 include polystyrene foam, sponge, and wood.

[0036] As shown in Figure 8, the lower surface 24 of the projector 2 is provided with a first female threaded portion 24a (main body engagement portion) in the center of a plan view. The lower cover 12 is provided with a second female threaded portion 12a (first engagement portion) in the center of a plan view, opposite to the first female threaded portion 24a. The lower cover 12 is also provided with a fixing screw 48 (connecting member) having a male thread that screws into the first female threaded portion 24a and the second female threaded portion 12a to fix the projector 2 and the cover member 1.

[0037] Furthermore, the fixing screws 48 are not limited to being provided on the lower cover 12. For example, a first screw hole (corresponding to the main body engagement part) for a ceiling mount bracket may be provided on the upper surface 23 of the projector 2, and a second screw hole (corresponding to the first engagement part) corresponding to the first screw hole may be provided on the upper cover 11, with fixing screws that screw into these first and second screw holes provided on the upper cover 11.

[0038] As shown in Figures 2 and 6, the right cover 14 has a right speaker hole 44 (second hole) positioned opposite the right speaker hole 34A of the projector 2. The right speaker hole 44 is located on the rear side (-X direction) of the right cover 14 and overlaps with the right speaker hole 34A when viewed from the right side (+Y direction). The right speaker hole 44 has a vertically elongated slit shape extending in the vertical direction Z.

[0039] The outer opening 44b of the right speaker hole 44 has a larger cross-sectional area than the inner opening 44a. As shown in Figure 9, the cross-sectional area of ​​the right speaker hole 44 gradually increases as it moves away from the right speaker hole 34A. The side view shape of the right speaker hole 44 is the same as the shape of a horn that spreads out along a hyperbola. The hyperbola in this case is determined, for example, by a linear equation that generally represents Helmholtz resonance. Furthermore, the change in the cross-sectional area of ​​the right speaker hole 44 is not limited to a smoothly continuous change as described above, but may be a shape in which the cross-sectional area changes in steps following the hyperbola described above. Also, the right speaker hole 44 is not limited to being a hole that extends in a straight line in the thickness direction of the right cover 14 (a direction perpendicular to the plane of the right cover 14), and the hole axis may be curved.

[0040] As shown in Figures 2 and 6, the right cover 14 is positioned approximately in the center in a plan view from the right (+Y direction) and has a connector hole 47 facing the second connector portion 36 provided on the right side surface 25 of the projector 2. The second connector portion 36 is exposed to the right (+Y direction) through a power supply hole 41. Users of the projector 2 can access the second connector portion 36 through the connector hole 47 of the cover member 1 and connect the connector.

[0041] As shown in Figure 7, the left cover 15 has a left speaker hole 45 (second hole) positioned opposite the left speaker hole 34B of the projector 2. The left speaker hole 45 is located on the rear side (-direction) of the left cover 15 and overlaps with the left speaker hole 34B when viewed from the left side (-Y direction). The left speaker hole 45 has a vertically elongated slit shape extending in the vertical direction Z.

[0042] The outer opening 45b of the left speaker hole 45 has a larger cross-sectional area than the inner opening 45a. As shown in Figure 9, the cross-sectional area of ​​the left speaker hole 45 gradually increases as it moves away from the left speaker hole 34B. The side view shape of the left speaker hole 45 is the same as the shape of a horn that spreads along a hyperbola. The hyperbola in this case is determined, for example, by a first-order equation that generally represents Helmholtz resonance. Furthermore, the change in the cross-sectional area of ​​the left speaker hole 45 is not limited to a smoothly continuous change as described above, but may be a shape in which the cross-sectional area changes in steps following the hyperbola described above. Also, the left speaker hole 45 is not limited to being a hole that extends in a straight line in the thickness direction of the left cover 15 (a direction perpendicular to the plane of the left cover 15), and the hole axis may be curved.

[0043] As shown in Figure 7, the left cover 15 is positioned on the front side (+X direction) in a plan view from the left side (-Y direction) and has an exhaust port hole 46 (third hole) facing the exhaust port 35 provided on the left side surface 26 of the projector 2. The exhaust port hole 46 is, for example, a rectangular opening that is long in the left-right direction Y. The air exhausted from inside the outer casing 20 through the exhaust port 35 is further exhausted to the outside through the exhaust port hole 46 of the cover member 1.

[0044] As shown in Figure 10, the exhaust port opening 46 constitutes a silencer based on the Holmhertz principle, having a second air chamber 46A provided on the inner opening 46a side facing the exhaust port 35, and a second throat portion 46B provided on the outer opening 46b side of the second air chamber 46A, with a smaller cross-sectional area than the second air chamber 46A. The second air chamber 46A extends along the hole axis direction (left-right direction Y) of the exhaust port opening 46 and has the same cross-section along the hole axis direction. The cross-sectional area of ​​the second air chamber 46A is larger than the cross-sectional area of ​​the exhaust port 35. That is, the cross-sectional area of ​​the inner opening 46a of the exhaust port opening 46 is larger than the cross-sectional area of ​​the intake port 33. The second throat portion 46B extends along the hole axis direction (left-right direction Y) of the exhaust port opening 46 and has the same cross-section along the hole axis direction. The cross-sectional area of ​​the second throat portion 46B is smaller than the cross-sectional area of ​​the second air chamber 46A and is equal to the cross-sectional area of ​​the exhaust port 35. That is, the cross-sectional area of ​​the outer opening 46b of the exhaust port hole portion 46 is smaller than the cross-sectional area of ​​the second air chamber 46A and is equal to the cross-sectional area of ​​the exhaust port 35.

[0045] The inner surface of the second throat portion 46B is provided with sound-absorbing material 43 similar to the sound-absorbing material 43 provided on the inner surface of the air intake hole portion 42 described above, for example, by attachment. Examples of materials for the sound-absorbing material 43 include expanded polystyrene, sponge, wood, etc.

[0046] Next, the function of the projector cover component (cover component 1) will be explained.

[0047] As shown in Figure 1, the cover member 1 of this embodiment is a projector cover member that covers a projector having an outer casing 20, a power supply unit 32 disposed in the outer casing 20, and an image light generation module controlled by the power supply unit 32. At least the outer surface is made of wood and has a power supply unit hole 41 that overlaps the power supply unit 32 in a plan view. The power supply unit hole 41 has an opening larger than the periphery of the power supply unit 32.

[0048] Therefore, in this embodiment, even if at least a portion of the cover member 1 covering the projector 2 is made of wood, the power supply unit 32 of the projector 2 can be easily operated through the power supply unit hole 41. Furthermore, in this embodiment, since the projector 2 is covered by the cover member 1, which has at least a portion of its outer surface made of wood, the overall appearance is woody, which enhances the aesthetic appeal of the projector 2. Thus, in this embodiment, ease of use is achieved without impairing the functionality of the projector 2, and the appearance is improved by covering the projector 2 with a cover member 1 made of wood.

[0049] Furthermore, the cover member 1 according to this embodiment has speaker holes 44 and 45 positioned opposite the speaker holes 34A and 34B provided in the projector 2. With this configuration, sound emitted from the speaker holes 34A and 34B can be transmitted to the outside of the cover member 1 through the speaker holes 44 and 45. Therefore, even if the projector 2 is covered by the cover member 1 made of wood, it is possible to prevent the sound emitted from the speaker holes 34A and 34B from being blocked from the outside and becoming difficult to hear.

[0050] According to the cover member 1 of this embodiment, the cross-sectional area of ​​the speaker holes 44 and 45 of the cover member 1 is configured such that the cross-sectional area on the inner openings 44a and 45a in the wall thickness direction is smaller than the cross-sectional area on the outer openings 44b and 45b. With this configuration, the frequency characteristics of the sound emitted from the speaker holes 34A and 34B can be changed by the speaker holes 44 and 45, thereby increasing the volume and improving the acoustic capabilities of the projector 2.

[0051] According to this embodiment, the cover member 1 has an intake port hole 42 and an exhaust port hole 46 at positions opposite to the intake and exhaust ports (intake port 33 and exhaust port 35) of the projector 2. With this configuration, even when the projector 2 is covered by the cover member 1 made of wood, air from outside the cover member 1 can be efficiently introduced into the intake port 33 through the intake port hole 42, and air from inside the projector 2 can be efficiently exhausted to the outside of the cover member 1 through the exhaust port 35 and the exhaust port hole 46. Note that the cover member 1 may have only one of the intake port hole 42 and the exhaust port hole 46.

[0052] According to the projector cover member 1 of this embodiment, the intake port 42 and exhaust port 46 each have air chambers 42A and 46A provided on the inner openings 42a and 46a side facing the corresponding intake port 33 and exhaust port 35, and throat portions 42B and 46B provided on the outer openings 42b and 46b side of the air chambers 42A and 46A, and having a smaller cross-sectional area than the air chambers 42A and 46A. With this configuration, the cover member 1 covering the projector 2 is provided with intake port 42 and exhaust port 46 having a Helmholtz structure with air chambers 42A and 46A and throat portions 42B and 46B, resulting in a configuration that improves spatial efficiency. As a result, the sound pressure at specific frequencies is reduced, exhibiting a sound absorption effect and reducing the noise of the projector 2.

[0053] According to the cover member 1 of this embodiment, the cross-sectional areas of the throat portions 42B and 46B are equivalent to the cross-sectional areas of the intake port 33 and exhaust port 35, respectively. In this case, there is no turbulence in the air flowing through the throat portions 42B and 46B, and the air can flow in a substantially straight line. Therefore, turbulence in the air flowing inside the intake port hole 42 and the exhaust port hole 46 can be suppressed, and noise generation due to turbulence can be reduced, resulting in quieter operation.

[0054] According to the cover member 1 of this embodiment, sound-absorbing material 43 is provided on the inner surfaces of the throat portions 42B and 46B. With this configuration, the sound pressure of the air passing through the sound-absorbing material 43 of the throat portions 42B and 46B can be further reduced, thereby enhancing the sound absorption effect.

[0055] The cover member 1 according to this embodiment has a lower cover 12 that covers the mounting surface of the projector 2, and an upper cover 11 opposite to the lower cover 12. The surface area of ​​the lower cover 12 is smaller than the surface area of ​​the upper cover 11. With this configuration, for example, by providing a notch in the outer peripheral edge of the lower cover 12, the visibility from the mounting surface side can be reduced and the appearance can be improved. That is, even if mounting parts such as legs are placed on the mounting surface of the projector 2 and dead space is created, the appearance of the cover member 1 can be improved. In addition, by providing a notch in the outer edge of the lower cover 12, the cover member 1 housing the projector 2 can be easily held, and adjustments by, for example, the angle adjustment mechanism can be made easier, thereby improving the functionality of the projector 2.

[0056] According to the cover member 1 of this embodiment, the projector 2 is provided with a first female threaded portion 24a. It further includes a second female threaded portion 12a positioned opposite the first female threaded portion 24a, and a fixing screw 48 that engages with the second female threaded portion 12a and the first female threaded portion 24a to fix the projector 2. With this configuration, the cover member 1 and the projector 2 housed in the cover member 1 can be fixed using the fixing screw 48. As a result, the cover member 1 can be attached to the projector 2 without shifting to a predetermined position, and the power supply unit 32 of the projector 2 can be reliably exposed through at least the power supply unit hole 41.

[0057] The cover member 1 according to this embodiment has multiple side wall sections on which wood is arranged on the outer surface. The grain direction of each of the multiple side wall sections is the same. In this case, since the cover member 1 is made of wood, the appearance can be improved by arranging the outer surface so that the grain direction is the same. Furthermore, even if the wood warps, for example, the misalignment of the wood grain will be less noticeable, and the visual inconsistency can be suppressed. In other words, it becomes easier to maintain a state where the difference in the warping direction of each side wall section over time is small, improving durability.

[0058] According to the cover member 1 of this embodiment, since the wood is cypress, it has good workability and antibacterial properties, so deterioration over time can be suppressed.

[0059] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0060] In the embodiment described above, the cover member 1 is provided so as to cover five sides of the projector 2 excluding the front surface 21, but the cover member may cover the entire surface of the projector 2.

[0061] A summary of this disclosure is provided below. (Note 1) A projector cover member that covers a projector having an outer casing, a power supply unit disposed in the outer casing, and an image light generation module controlled by the power supply unit, At least the outer surface is made of wood, In a plan view, it has a first hole that overlaps the power supply unit, The projector cover member is characterized in that the first hole has an opening larger than the periphery of the power supply unit.

[0062] With the projector cover member configuration described in Appendix 1, even if at least a portion of the projector cover member covering the projector is made of wood, the power supply of the projector can be easily operated through the first hole. Furthermore, in the configuration described in Appendix 1, since the projector is covered by a projector cover member whose outer surface is formed of wood, the overall appearance is woody, which enhances the aesthetic appeal of the projector. Thus, Appendix 1 provides ease of use without compromising the functionality of the projector, and improves the appearance by covering the projector with a projector cover member made of wood.

[0063] (Note 2) The projector cover member according to claim 1, having a second hole at a position opposite to the speaker hole provided in the projector.

[0064] According to the configuration described in Appendix 2, sound emitted from the speaker holes can be directed to the outside of the projector cover member through the second hole. Therefore, even if the projector is covered by a projector cover member made of wood, it is possible to prevent the sound emitted from the speaker holes from being blocked from the outside and becoming difficult to hear.

[0065] (Note 3) The projector cover member according to claim 2, wherein the cross-sectional area of ​​the second hole is smaller on the inner opening side in the wall thickness direction than on the outer opening side.

[0066] According to the configuration described in Appendix 3, the second hole can change the frequency characteristics of the sound emitted from the speaker hole, thereby increasing the volume and improving the acoustic capabilities of the projector.

[0067] (Note 4) The projector cover member according to claim 1 or 2, having a third hole at a position opposite to the intake and exhaust port of the projector.

[0068] According to the configuration described in Appendix 4, even when the projector is covered by a projector cover member made of wood, air from outside the projector cover member can be efficiently introduced through the third hole to, for example, an air intake, and air from inside the projector can be efficiently exhausted to the outside of the projector cover member through the third hole to, for example, an exhaust port.

[0069] (Note 5) The third hole is, An air chamber provided on the inner opening side facing the intake and exhaust port, A throat portion is provided on the outer opening side of the aforementioned air chamber and has a smaller cross-sectional area than the aforementioned air chamber, A projector cover member according to claim 4, having the following characteristics.

[0070] According to the configuration described in Appendix 5, the projector cover member that encloses the projector is provided with a third hole in a Helmholtz structure that includes an air chamber and a throat section, resulting in a configuration that improves spatial efficiency. As a result, the sound pressure at specific frequencies is reduced, exhibiting a sound absorption effect and reducing projector noise.

[0071] (Note 6) The projector cover member according to claim 5, wherein the cross-sectional area of ​​the throat portion is equal to the cross-sectional area of ​​the intake and exhaust port.

[0072] According to the configuration described in Appendix 6, the air flowing through the throat section is free from turbulence and can flow in a nearly straight line. Therefore, turbulence in the air flowing inside the third hole can be suppressed, thereby reducing noise caused by turbulence and achieving quieter operation.

[0073] (Note 7) The projector cover member according to claim 5, wherein a sound-absorbing material is provided on the inner surface of the throat portion.

[0074] According to the configuration described in Appendix 7, the sound pressure of the air passing through the sound-absorbing material in the throat section can be further reduced, thereby enhancing the sound absorption effect.

[0075] (Note 8) It has a first wall portion that covers the mounting surface of the projector, and a second wall portion opposite to the first wall portion, The projector cover member according to claim 1, wherein the surface area of ​​the first wall portion is smaller than the surface area of ​​the second wall portion.

[0076] According to the configuration described in Appendix 8, for example, by providing a notch in the outer edge of the first wall, the visibility from the installation surface can be reduced, thereby improving the appearance. In other words, even if a dead space is created when mounting parts such as legs are placed on the projector's installation surface, the appearance of the projector cover member can be improved. Furthermore, by providing a notch in the outer edge of the first wall, the projector cover member housing the projector can be easily held, and adjustments such as angle adjustment mechanisms can be made easier, thereby improving the functionality of the projector.

[0077] (Note 9) The projector is provided with a main body engagement part. A first engagement portion is positioned opposite to the main body engagement portion, The projector cover member according to claim 1, further comprising a coupling member that engages with the first engaging portion and the main body engaging portion to fix the projector and the cover member.

[0078] According to the configuration described in Appendix 9, the projector cover member and the projector housed within the projector cover member can be fixed together using a connecting member. This ensures that the projector cover member is attached to the projector without shifting to a predetermined position, and that the power supply unit of the projector is reliably exposed through at least the first hole.

[0079] (Note 10) It has multiple side wall sections on which the aforementioned wood is arranged on the outer surface, The projector cover member according to claim 1, wherein the wood grain direction of each of the multiple side wall portions is the same.

[0080] According to the configuration described in Appendix 10, since the projector cover component is made of wood, the appearance can be improved by ensuring that the grain direction of the outer surface is the same. Furthermore, even if the wood warps, for example, the misalignment of the wood grain will be less noticeable, thus suppressing any visual inconsistencies. In other words, it becomes easier to maintain a small difference in the direction of warping of each side wall over time, improving durability.

[0081] (Note 11) The projector cover member according to claim 1, wherein the wood is cypress.

[0082] According to the composition described in Appendix 11, it has good processability and antibacterial properties, thus suppressing deterioration over time. [Explanation of Symbols]

[0083] 1...Cover component (projector cover component), 2...Projector, 10...Cover body, 11...Upper cover (second wall), 12...Lower cover (first wall), 12a...Second female thread (first engagement part), 13...Rear cover, 20...Outer housing, 21...Front, 22...Rear, 23...Top, 24...Bottom, 24a...First female thread (body engagement part), 25...Right side, 26...Left side, 32...Power supply unit, 32A...First connector unit, 32B...Power switch unit, 33...Air intake, 33 a...Hole, 34A...Right speaker hole, 34B...Left speaker hole, 35...Exhaust port, 36...Second connector section, 41...Hole for power supply section, 42...Hole for air intake (third hole), 42A...First air chamber, 42B...First throat section, 43...Sound-absorbing material, 44...Hole for right speaker (second hole), 45...Hole for left speaker (second hole), 46...Hole for exhaust port (third hole), 46A...Second air chamber, 46B...Second throat section, 47...Hole for connector, 48...Fixing screw (connecting member)

Claims

1. A projector cover member that covers a projector having an outer casing, a power supply unit disposed in the outer casing, and an image light generation module controlled by the power supply unit, At least the outer surface is made of wood, In a plan view, it has a first hole that overlaps the power supply unit, The projector cover member is characterized in that the first hole has an opening larger than the periphery of the power supply unit.

2. The projector cover member according to claim 1, having a second hole portion at a position opposite to the speaker hole provided in the projector.

3. The projector cover member according to claim 2, wherein the cross-sectional area of ​​the second hole is smaller on the inner opening side in the wall thickness direction than on the outer opening side.

4. The projector cover member according to claim 1 or 2, having a third hole at a position opposite to the intake and exhaust port of the projector.

5. The third hole is, An air chamber provided on the inner opening side facing the intake and exhaust port, A throat portion is provided on the outer opening side of the aforementioned air chamber and has a smaller cross-sectional area than the aforementioned air chamber, A projector cover member according to claim 4, having the following characteristics.

6. The projector cover member according to claim 5, wherein the cross-sectional area of ​​the throat portion is equal to the cross-sectional area of ​​the intake and exhaust port.

7. The projector cover member according to claim 5, wherein a sound-absorbing material is provided on the inner surface of the throat portion.

8. It has a first wall portion that covers the mounting surface of the projector, and a second wall portion opposite to the first wall portion, The projector cover member according to claim 1, wherein the surface area of ​​the first wall portion is smaller than the surface area of ​​the second wall portion.

9. The projector is provided with a main body engagement part. A first engagement portion is positioned opposite to the main body engagement portion, The projector cover member according to claim 1, further comprising a coupling member that engages with the first engaging portion and the main body engaging portion to fix the projector.

10. It has multiple side wall sections on which the aforementioned wood is arranged on the outer surface, The projector cover member according to claim 1, wherein the wood grain direction of each of the multiple side wall portions is the same.

11. The projector cover member according to claim 1, wherein the wood is cypress.

Images