Projection system and projector cart

Abstract

To provide a projection system that can easily adjust a position of a projection image of a projector.SOLUTION: A projection system comprises a projector and a projector cart for accommodating the projector. The projector includes: a housing; a light source portion accommodated in the housing; a light modulation portion that is accommodated in the housing and modulates light emitted from the light source portion; and a projection lens portion that emits the light modulated by the light modulation portion to the outside of the housing. In a state in which the projector is in use, the projector cart includes: an accommodation portion that can accommodate the projector and emit the light emitted from the projection lens portion to the outside of the projector cart; a base provided below the accommodation portion; and wheels provided below the base. The base has a rotation portion on which the accommodation portion is rotatably placed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Conventionally, there is known a projector that displays an image by projecting projection light onto a screen, etc. A projector rack that can improve convenience even when the projector is moved is known (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-098644 Summary of the Invention [Problem to be solved by the invention]

[0004] When installing a projector rack, the wheels move freely, making it difficult to make fine adjustments horizontally. [Means for solving the problem]

[0005] The projection system of the present disclosure comprises a projector and a projector cart that houses the projector, wherein the projector includes a housing, a light source unit housed in the housing, a light modulation unit housed in the housing that modulates light emitted from the light source unit, and a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing, and when the projector is in a position to use the projector, the projector cart includes a housing unit that can house the projector and emit the light emitted from the projection lens unit to the outside of the projector cart, a base provided below the housing unit, and wheels provided below the base, and the base has a rotating unit that rotatably mounts the housing unit.

[0006] The projector cart of the present disclosure is a projector cart capable of accommodating a projector having a housing, a light source unit housed in the housing, a light modulation unit housed in the housing and modulating light emitted from the light source unit, and a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing, and includes a housing unit that can accommodate the projector and emit the light emitted from the projection lens unit to the outside of the projector cart in a usage position, a base provided below the housing unit, and wheels provided below the base, and the base has a rotating unit on which the housing unit is rotatably mounted. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a left front perspective view of the projection system according to the first embodiment. [Figure 2] FIG. 2 is a right rear perspective view of the projection system according to the first embodiment. [Figure 3] FIG. 2 is an exploded perspective view of the cart for the projector according to the first embodiment. [Figure 4] FIG. 1 is a front view of a projection system according to a first embodiment. [Figure 5] FIG. 10 is an exploded perspective view of a cart for a projector according to a second embodiment. [Figure 6] FIG. 10 is a cross-sectional view of a projection system according to a third embodiment. [Figure 7] FIG. 11 is a cross-sectional view of a projection system in which the angle is changed according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In each drawing, the symbol FR indicates the front (front direction) of the projection system 1 in an installed state, the symbol UP indicates the upper side of the projection system 1, and the symbol RH indicates the right side of the projection system 1. Although not shown, the opposite direction of the symbol FR indicates the rear side of the projection system 1, the opposite direction of the symbol UP indicates the lower side of the projection system 1, and the opposite direction of the symbol RH indicates the left side of the projection system 1. In the description, directions such as front, back, left, right, and up and down are the same as the directions relative to the projection system 1 described above, unless otherwise specified.

[0009] [Embodiment 1] Fig. 1 is a left front perspective view of the projection system 1. Fig. 2 is a right rear perspective view of the projection system 1. Fig. 3 is an exploded perspective view of a projector cart 20. Fig. 4 is a front view of the projection system 1. The projection system 1 is made up of a projector 10 that projects an image and a projector cart 20 that houses the projector 10.

[0010] The projector 10 includes a housing 11, a light source unit, a light modulation unit, and a projection lens unit 14. When the projector 10 is powered on, light is emitted from the light source unit. The light emitted from the light source unit is incident on the light modulation unit. The light modulation unit modulates the light emitted from the light source unit. The light modulated by the light modulation unit is emitted outside the housing 11 by the projection lens unit 14, and an image can be projected onto the projection surface.

[0011] The housing 11 of the projector 10 is provided with an air intake 15 for intake of air and a heat exhaust 16 for exhaust of heat. In addition, the lower part of the housing 11 of the projector 10 is provided with legs 17 that can adjust the projection surface in the vertical direction.

[0012] The projector cart 20 accommodates the projector 10 and is capable of moving the projector cart 20. The projector cart 20 can be moved by human power or by a robot, for example.

[0013] The projector cart 20 is made up of a handle 150 and a body 21. The body 21 has a base 25 that forms the bottom of the body 21, and a storage unit 30 that is supported by the bottom and forms the sides and top. The base 25 and storage unit 30 are provided with a locking mechanism (fixing unit) 50.

[0014] The vehicle body 21 comprises an upper surface portion (fifth surface) 35 that forms the top surface, a right surface portion 33 (third surface) and a left surface portion (fourth surface) 34 that form the left and right sides, a front surface portion (first surface) 31 and a rear surface portion 32 (second surface) that form the front and rear surfaces, and a support plate portion 60 that forms the bottom surface. Each surface of the housing unit 30 may be made up of multiple surfaces. In this embodiment, the front surface 31 is made up of a vertical surface 31a that is perpendicular to the horizontal floor and an inclined surface 31b that intersects with the vertical surface 31a. The top surface 35 is provided substantially parallel to the horizontal floor. By providing a horizontal surface in this manner, the housing unit 30 can be used as a stand for electronic devices and the like that are connected to the projector 10 housed therein. The support plate 60 has a hole (recess) 161 formed therein.

[0015] In this embodiment, a partition plate 41 is provided in the housing section 30, dividing the housing section 30 into an upper space and a lower space. In this embodiment, the projector 10 is housed above the partition plate 41, i.e., in the upper space.

[0016] An air intake hole 37 is formed on the front surface of the housing section 30. Heat exhaust holes 38 are formed on the right surface 33 and rear surface 32 of the housing section 30. The air intake hole 37 and the heat exhaust hole 38 are provided in positions that do not interfere with the intake of air and the exhaust of heat from the projector 10 placed inside the projector cart 20. The air intake hole 37 and the heat exhaust hole 38 may also be configured with a plurality of slit holes. This makes it possible to prevent the temperature inside the housing section 30 from rising due to the exhaust air from the projector 10, even when the projector 10 is placed inside the housing section 30. In other words, since the projector 10 can exhaust the exhaust air to the outside of the housing section 30 of the projector cart 20, it is possible to prevent the exhaust air from the projector 10 from accumulating inside the housing section 30, and the air intake operation and the heat exhaust operation can be performed without the temperature inside the housing section 30 rising.

[0017] At least one of the top surface 35 and the front surface 31 of the housing 30 is provided with a window 40 for emitting the projected light from the projector 10 to the outside of the housing 30. The window 40 is provided so as not to block the projected light from the projector 10. The window 40 may also be provided by removing the top surface 35 and the front surface 31. In other words, the top surface 35 and the front surface 31 of the housing 30 are formed to be removable, and the projection system 1 can also be used with the top surface 35 and the front surface 31 removed.

[0018] The housing section 30 is provided with a grip section 150 that can be used as a handle when moving the projector cart 20. The grip section 150 is provided at the rear end of the housing section 30. In this embodiment, the grip section 150 has a first support section 151 and a second support section 152 that extend in the vertical direction, and a connection section 153 that connects the upper ends of the first support section 151 and the second support section 152. In other words, the grip section 150 is formed in an inverted U shape when viewed from the front. The first support section 151 and the second support section 152 have a first protrusion section 151a and a second protrusion section 152a that extend from their upper ends outward in the vehicle width direction. The vehicle width direction means the direction along the symbol RH.

[0019] An operation panel (first operation unit) 155 is provided on the connection unit 153 of the grip unit 150. The operation panel 155 is a touch display, and the user can perform operations such as powering on the projector 10 and performing keystone correction by touching icons displayed on the touch display.

[0020] The grip portion 150 is displaceable and is formed so that it can be inserted through the upper surface portion 35 and stored inside the storage portion 30. Examples of a displacement means for storing the grip portion 150 in the storage portion 30 include an extendable structure and a foldable structure. The grip portion 150 is exposed from the storage portion 30 and its length can be freely changed. In other words, the storage state in the present disclosure does not only refer to a state in which the entire grip portion 150 is stored inside the storage portion 30, but also to a state in which part of the grip portion 150 is stored inside the storage portion 30 and part is exposed outside the storage portion 30.

[0021] The gripping portion 150 is formed so that when it is fully extended, the length from the upper surface 35 of the storage portion 30 to the operation panel 155 is longer than the length from the lower surface 36 to the upper surface 35. By providing the operation panel 155 on the gripping portion 150 in this way, it is not necessary to remove the projector 10 from the storage portion 30 in order to change the settings of the projector 10, and the projector cart 20 can be moved in an upright position.

[0022] The gripping portion 150 can be retracted until the uppermost end 150 a of the gripping portion 150 is at the same level as or lower than the top surface 35 of the storage portion 30 . A notch 35a for accommodating the connection part 153 is provided at the rear end of the top surface 35 of the housing part 30. A notch 32a is also provided at the upper end of the rear surface 32 so that a part of the accommodated grip part 150 is exposed at the outer end of the housing part 30. These notches 32a and 35a create a gap around the connection part 153 of the grip part 150 when the grip part 150 is accommodated in the housing part 30, allowing an operator to grasp and remove the grip part 150. Furthermore, when the grip part 150 is accommodated, the operation panel 155 is exposed to the outside. In other words, the operation panel 155 is located outside the housing part 30, and a user can operate the projector 10 using the operation panel 155 even when the grip part 150 is accommodated.

[0023] The housing section 30 is provided with a cable (not shown) for supplying power to the projector 10 and a wiring hole (not shown) for wiring the cable.

[0024] At least a portion of the first support section 151, the second support section 152, and a portion of the connection section 153 have a hollow structure. A circuit that is controlled by operating the operation panel 155 is provided in the internal cavity. The circuit extends to the housing section 30 and is connected to the projector 10.

[0025] The base portion 25 has a lower surface portion (sixth surface) 36 that forms the bottom surface of the vehicle body portion 21. Wheels 39 are provided on one side of the lower surface portion 36. Wheels 39 are provided at each of the four corners of the lower surface portion 36. Stoppers (not shown) are provided on the wheels 39, and the stoppers can restrict the rotation of the wheels. A rotating portion (convex portion) 160 is provided on the upper part of the base portion 25, i.e., on the other side opposite the lower surface portion 36. The outer periphery of the rotating portion 160 has a cylindrical shape with a curvature when viewed from above. The rotating portion 160 can rotate in the horizontal direction while the base portion remains fixed. The rotating portion 160 is inserted through a hole 161 provided in the support plate portion 60 of the storage portion 30 and supports the partition plate 41 .

[0026] The projector cart 20 can rotate the storage unit 30 while keeping the base unit 25 fixed by using the rotation unit 160 provided on the base unit 25. In this embodiment, the support plate unit 60 provided on the storage unit 30 has a hole 161 formed therein that has substantially the same shape as the rotation unit 160. This prevents the storage unit 30 from falling off the base unit 25 and becoming dislodged from the projector cart 20 in the front-rear or left-right directions.

[0027] The projector cart 20 is provided with a locking mechanism 50 for preventing horizontal rotation, which allows the operator to freely fix and move the base unit 25 and the storage unit 30. The locking mechanism 50 may be, for example, a slide-type locking mechanism or a clip-type locking mechanism.

[0028] In this embodiment, the locking mechanism 50 is a slide-type locking mechanism. The locking mechanism is provided at the rear of the projection system 1. The housing 30 is provided with a holder 51 and a round bar 52 that is supported by the holder 51 so that it can move up and down. The base 25 is provided with a receiving portion 53. When the round bar 52 is moved downward, the receiving portion 53 and the round bar 52 engage with each other. This fixes the housing 30 and the base 25, preventing the rotation portion 160 from moving. In other words, the rotation portion 160 can be prevented from moving when the projection system 1 is moved. Furthermore, when the round rod 52 is moved upward, the round rod 52 is disengaged from the receiving portion 53, and the fixing between the housing portion 30 and the base portion 25 is released. This makes the rotating portion 160 movable, and the housing portion 30 can be moved horizontally while the base portion 25 remains fixed. In other words, only the housing portion 30 can be moved horizontally, and the projection surface of the projector 10 can be easily adjusted. In this way, the worker can use the locking mechanism 50 to arbitrarily fix or move the base unit 25 and the storage unit 30 as needed.

[0029] [Effects of the First Embodiment] As described above, the projector includes a projector 10 and a projector cart 20 that houses the projector 10. The projector 10 includes a housing 11, a light source unit housed in the housing 11, a light modulation unit that modulates light emitted from the light source unit, and a projection lens unit 14 that emits the light modulated by the light modulation unit to the outside of the housing 11. When the projector 10 is in a position to use the projector, the projector cart 20 includes a housing unit 30 that can house the projector 10 and emits the light emitted from the projection lens unit 14 to the outside of the projector cart 20, a base unit 25 provided below the housing unit 30, and wheels 39 provided below the base unit 25. The base unit 25 has a rotation unit 160 that rotatably mounts the housing unit 30. According to this, by providing the rotation unit 160 on the base unit 25 located below the housing unit, it is possible to rotate the housing unit 30 without moving the wheels 39. Therefore, it is possible to easily perform fine adjustments to the projection position of the projector 10.

[0030] In the position in which the projector 10 is used, the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis. The storage section 30 is arranged relative to the base section 25 so that it can rotate along the XY plane parallel to the X axis and the Y axis, with the Z axis direction as its axis. According to this, by installing the housing portion 30 so that it can rotate along the XY plane, it is possible to easily perform fine adjustment of the projection position of the projector 10 in the horizontal direction.

[0031] The rotating portion 160 is a convex portion 160 provided on the surface facing the storage portion 30 of the base portion 25, and when the projection system 1 is viewed in a plan view vertically downward in the position in which the projector 10 is used, the outer periphery of the rotating portion 160 has a curvature. This makes it possible to easily realize a structure in which the accommodating section 30 rotates in the horizontal direction relative to the base section 25.

[0032] When the projector 10 is in the use position, the projector cart 20 includes a handle 150 attached to the storage section 30 and extending to a position higher than the storage section 30 . According to this, by grasping and operating the grip portion 150, the relative position of the storage portion 30 with respect to the base portion 25 can be easily adjusted.

[0033] The projector cart (20) includes a locking mechanism (50) that can fix the position of the storage section (30) relative to the base section (25). This allows the storage unit 30 to be rotated relative to the base unit 25 so as to assume a desired attitude, and then the desired attitude can be maintained.

[0034] [Embodiment 2] A second embodiment of the present invention will be described below. In this second embodiment, parts configured in the same manner as in the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0035] FIG. 5 is an exploded perspective view of the projector cart 20. As shown in FIG. In the second embodiment, the shape of the rotating part 160 is different from that in the first embodiment. In the first embodiment, the rotating part 160 is provided in a cylindrical shape. In contrast to this, in the second embodiment, a convex portion 260 having an arch shape with a curvature on the outer periphery when viewed from the side edge is provided on the base portion 25. Corresponding to this, a concave portion 261 having a shape corresponding to the convex portion 260 is provided on the storage portion 30. The receiving portion is supported on the base portion by engaging the recessed portion with the protruding portion of the base portion. In this way, the convex portion of the base portion is engaged with the concave portion of the storage portion, so that the angle of the storage portion 30 can be adjusted in the vertical direction by moving the concave portion of the storage portion along the curved surface of the convex portion.

[0036] [Effects of the second embodiment] When projector 10 is used in the following manner, the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z and Y axes is defined as the X axis, and the X axis is defined as the direction in which projection lens unit 14 emits light. Conversely, storage unit 30 is positioned relative to base unit 25 so that it can rotate along the XZ plane parallel to the X and Z axes, with the Y axis direction as its axis. According to this, by installing the housing portion 30 so that it can rotate along the XZ plane, it is possible to easily perform fine adjustment of the projection position of the projector 10 in the vertical direction.

[0037] The rotating portion 260 is a convex portion 260 or a concave portion 261 provided on the surface facing the storage portion 30 of the base portion 25, and when the projection system 1 is viewed in a plane in the Y-axis direction in the position in which the projector 10 is used, the outer periphery of the convex portion 260 or the concave portion 261 has a curvature. This allows the storage section 30 to easily rotate in a direction perpendicular to the base section 25 .

[0038] [Embodiment 3] A third embodiment of the present invention will be described below. In the third embodiment, parts configured in the same manner as in the first embodiment will be given the same reference numerals and descriptions thereof will be omitted.

[0039] Fig. 6 is a cross-sectional view of the projection system 1. Fig. 7 is a cross-sectional view of the projection system 1 with the angle changed. In the third embodiment, the rotation structure of the rotating part 160 is different from that of the first embodiment. In the first embodiment, the rotating part 160 is provided on the base part 25, and the hole part 161 is provided in the storage part 30, so that the storage part 30 is supported by the rotating part 160. In contrast, in the third embodiment, a hemispherical convex portion 360 is provided on the underside of the support plate portion 60 of the accommodating portion 30. A concave portion 361 corresponding to the convex portion 360 is provided in the base portion 25. A through hole 365 that passes through in the vertical direction is formed in the support plate portion 60, the convex portion 360, the concave portion 361, and the base portion 25. A bolt 366 is inserted into the through hole 365 from the base portion 25 side, and the bolt 366 is fixed from above the support plate portion 60 of the accommodating portion 30 by a nut 367. This allows the base unit 25 and the housing unit 30 to be fixed together, and the position of the image projected by the projector can be adjusted by tilting the housing unit 30 in the horizontal and vertical directions.

[0040] [Effects of the Third Embodiment] When projector 10 is used in the following manner, the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis as the Y axis, and the direction perpendicular to the Z and Y axes as the X axis, and the X axis is defined as the direction in which projection lens unit 14 emits light. Conversely, storage unit 30 is rotatably arranged relative to base unit 25 along the XY plane parallel to the X and Y axes, with the Z axis direction as its axis, and storage unit 30 is rotatably arranged relative to base unit 25 along the XZ plane parallel to the X and Z axes, with the Y axis direction as its axis. This allows the storage section 30 to be installed so that it can rotate along the XY plane and also so that it can rotate along the XZ plane, making it easy to fine-tune the projection position of the projector 10 in the vertical and horizontal directions.

[0041] The rotating portion 160 is a convex portion 360 or a concave portion 361 provided on the surface facing the storage portion 30 of the base portion 25, and when the projector 10 is in a position where it is used, and when the projection system 1 is viewed in a plane in the Y-axis direction, the outer periphery of the convex portion 360 or the concave portion 361 has a first curvature, and when the projector 10 is in a position where it is used, and when the projection system 1 is viewed in a plane in the Z-axis direction, the outer periphery of the convex portion 360 or the concave portion 361 has a second curvature. This makes it possible to easily realize a structure in which the storage section 30 is rotatable in the vertical direction relative to the base section 25 and is rotatable in the horizontal direction relative to the base section 25.

[0042] [Other embodiments] The above-described embodiment merely shows one aspect of the present invention, and any modifications and applications are possible without departing from the spirit of the present invention.

[0043] In the first embodiment, the locking mechanism 50 is provided at the rear of the vehicle body 21. However, the installation position of the locking mechanism 50 can be changed. Also, a plurality of locking mechanisms 50 may be provided, or a plurality of receiving portions 53 may be provided. Furthermore, the receiving portions 53 may be formed by providing holes in the base 25. Summary of this disclosure A summary of this disclosure is provided below.

[0044] (Appendix 1) A projection system comprising: a projector; and a projector cart that houses the projector, wherein the projector includes a housing, a light source unit housed in the housing, a light modulation unit housed in the housing that modulates light emitted from the light source unit, and a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing, wherein, in a position in which the projector is used, the projector cart includes a housing unit that can house the projector and emit the light emitted from the projection lens unit to the outside of the projector cart, a base provided below the housing unit, and wheels provided below the base, and the base has a rotating unit that rotatably mounts the housing unit. According to this, by providing a rotation unit on the base located below the housing unit, the housing unit can be rotated without moving the wheels, which makes it easy to fine-tune the projection position of the projector.

[0045] (Appendix 2) In the projection system described in Appendix 1, when the projector is used in a position where the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the storage unit is arranged relative to the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as its axis. According to this, by installing the housing section so that it can rotate along the XY plane, it is possible to easily perform fine adjustment of the projection position of the projector in the horizontal direction.

[0046] (Appendix 3) A projection system as described in Appendix 2, wherein the rotating portion is a convex portion or a concave portion provided on the surface of the base facing the storage portion, and when the projection system is viewed in a plan view vertically downward in the position in which the projector is used, the outer periphery of the convex portion or the concave portion has a curvature. This makes it possible to easily realize a structure in which the storage section rotates in the horizontal direction relative to the base.

[0047] (Supplementary Note 4) In a projection system according to Supplementary Note 1, when the projector is used in a position in which the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the X axis being defined as the direction in which the projection lens unit emits light, the storage unit is arranged relative to the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as its axis. According to this, by installing the housing section so that it can rotate along the XZ plane, it is possible to easily perform fine adjustment of the projection position of the projector in the vertical direction.

[0048] (Appendix 5) A projection system as described in Appendix 4, wherein the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the storage portion, and when the projection system is viewed in a plane in the Y-axis direction in the position in which the projector is used, the outer periphery of the convex portion or the concave portion has a curvature. This makes it possible to easily realize a structure in which the storage section rotates in a direction perpendicular to the base.

[0049] (Supplementary Note 6) In a position in which the projector is used, the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, and the X axis is defined as the direction in which the projection lens unit emits light.The projection system described in Supplementary Note 1, wherein the storage unit is arranged relative to the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as its axis, and the storage unit is arranged relative to the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as its axis. This allows the housing to be rotatable along the XY plane and the XZ plane, making it easy to fine-tune the projection position of the projector in the vertical and horizontal directions.

[0050] (Appendix 7) The projection system described in Appendix 6, wherein the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the storage portion, and when the projection system is viewed in a plane in the Y-axis direction in the position in which the projector is used, the outer periphery of the convex portion or the concave portion has a first curvature, and when the projection system is viewed in a plane in the Z-axis direction in the position in which the projector is used, the outer periphery of the convex portion or the concave portion has a second curvature. This makes it possible to easily realize a structure in which the storage section is rotatable in a direction perpendicular to the base and in a direction horizontal to the base.

[0051] (Appendix 8) A projection system described in any one of Appendices 1 to 7, wherein, in a position in which the projector is used, the projector cart includes a handle attached to the storage section and extending to a position higher than the storage section. With this, by grasping and operating the grip portion, the relative position of the storage portion with respect to the base can be easily adjusted.

[0052] (Supplementary Note 9) The projection system according to any one of Supplementary Notes 1 to 8, wherein the projector cart includes a fixing part that can fix the position of the storage part relative to the base. According to this, after the accommodation unit is rotated so as to assume a desired attitude relative to the base, the desired attitude can be maintained.

[0053] (Appendix 10) A projector cart capable of accommodating a projector having a housing, a light source unit housed in the housing, a light modulation unit housed in the housing and modulating light emitted from the light source unit, and a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing, the projector cart including: a housing unit that can accommodate the projector in a usage position and that can emit the light emitted from the projection lens unit to the outside of the projector cart; a base provided below the housing unit; and wheels provided below the base, the base having a rotating unit on which the housing unit is rotatably mounted. According to this, by providing a rotation unit on the base located below the housing unit, the housing unit can be rotated without moving the wheels, which makes it easy to fine-tune the projection position of the projector.

[0054] (Appendix 11) In the position where the cart for a projector described in Appendix 10 is used, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the storage section is arranged relative to the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as its axis. According to this, by installing the housing section so that it can rotate along the XY plane, it is possible to easily perform fine adjustment of the projection position of the projector in the horizontal direction.

[0055] (Appendix 12) A projector cart as described in Appendix 11, wherein the rotating portion is a convex portion or a concave portion provided on the surface of the base facing the storage portion, and when the projector cart is in a position for use and viewed in a plane vertically downward, the outer periphery of the convex portion or the concave portion has a curvature. This makes it possible to easily realize a structure in which the storage section rotates horizontally relative to the base.

[0056] (Appendix 13) In a position in which the projector cart is used, the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, and the X axis is defined as the direction in which the projection lens unit emits light.The projector cart described in Appendix 10 is such that, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the storage unit is rotatably arranged relative to the base along an XZ plane parallel to the X axis and the Z axis. According to this, by installing the housing section so that it can rotate along the XZ plane, it is possible to easily perform fine adjustment of the projection position of the projector in the vertical direction.

[0057] (Appendix 14) A projector cart as described in Appendix 13, wherein the rotating portion is a convex portion or a concave portion provided on the surface of the base facing the storage portion, and when the projector cart is in a position where it is used and the projector cart is viewed in a plane in the Y-axis direction, the outer periphery of the convex portion or the concave portion has a curvature. This makes it possible to easily realize a structure in which the storage section rotates in a direction perpendicular to the base.

[0058] (Appendix 15) In a position in which the projector cart is used, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, and the X axis is defined as the direction in which the projection lens unit emits light, the storage unit is arranged relative to the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as its axis, and the storage unit is arranged relative to the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as its axis. This is the projector cart described in Appendix 10. This allows the housing to be rotatable along the XY plane and the XZ plane, making it easy to fine-tune the projection position of the projector in the vertical and horizontal directions.

[0059] (Appendix 16) The rotating portion is a convex portion or a concave portion provided on the surface of the base facing the storage portion, and when the projector cart is in a position for use and the projector cart is viewed in a plane in the Y-axis direction, the outer periphery of the convex portion or the concave portion has a first curvature, and when the projector cart is in a position for use and the projector cart is viewed in a plane in the Z-axis direction, the outer periphery of the convex portion or the concave portion has a second curvature. This makes it possible to easily realize a structure in which the storage section is rotatable in a direction perpendicular to the base and in a direction horizontal to the base.

[0060] (Appendix 17) A projector cart as described in any one of Appendices 10 to 16, wherein in a use position, the projector cart includes a handle attached to the storage section and extending to a position higher than the storage section. With this, by grasping and operating the grip portion, the relative position of the storage portion with respect to the base can be easily adjusted.

[0061] (Appendix 18) A projector cart according to any one of Appendices 10 to 17, wherein the projector cart includes a fixing portion that can fix the position of the storage portion relative to the base. This allows the storage unit to be rotated to a desired position relative to the base, and then the desired position can be maintained. [Explanation of symbols]

[0062] 1...Projection system, 10...Projector, 11...Housing, 14...Projection lens section, 15...Air intake port, 16...Heat exhaust port, 17...Leg section, 20...Projector cart, 21...Body section, 25...Base section, 30...Storage section, 31...Front section (first surface), 31a...Vertical surface, 31b...Inclined surface, 32...Rear section (second surface), 32a...Notch, 33...Right surface (third surface), 34...Left surface (fourth surface), 35...Top surface (fifth surface), 35a...Notch, 36...Bottom surface (sixth surface), 37...Air intake port, 38...Heat exhaust port, 39...wheel, 40...window portion, 41...partition plate, 50...locking mechanism, 51...holder, 52...round bar, 53...receiving portion, 60...support plate portion, 150...gripping portion, 150a...upper end, 151...first support portion, 151a...first protrusion portion, 152...second support portion, 152a...second protrusion portion, 153...connection portion, 155...operation panel, 160...convex portion (rotating portion), 161...concave portion (hole portion), 260...rotating portion, 260...convex portion, 261...concave portion, 360...convex portion, 361...concave portion, 365...through hole, 366...bolt, 367...nut.

Claims

1. A projector and a cart for the projector that houses the projector, the projector includes a housing, a light source unit housed in the housing, a light modulation unit housed in the housing and configured to modulate light emitted from the light source unit, and a projection lens unit configured to emit the light modulated by the light modulation unit to the outside of the housing; In the posture in which the projector is used, the projector cart includes a storage section capable of storing the projector and capable of emitting light emitted from the projection lens section to the outside of the projector cart, a base provided below the storage section, and wheels provided below the base, The base has a rotating part on which the storage part is rotatably mounted. Projection system.

2. In the posture in which the projector is used, When the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the storage unit is disposed on the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as an axis; The projection system according to claim 1 .

3. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the projection system is viewed vertically downward in a plan view in a posture in which the projector is used, the outer periphery of the convex portion has a curvature. The projection system according to claim 2 .

4. In the posture in which the projector is used, When the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the X axis being the direction in which the projection lens unit emits light, the accommodation unit is disposed on the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as an axis; The projection system according to claim 1 .

5. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the projection system is viewed in a plan view in the Y-axis direction in a posture in which the projector is used, the outer periphery of the convex portion has a curvature. The projection system according to claim 4 .

6. In the posture in which the projector is used, When the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the X axis being the direction in which the projection lens unit emits light, the accommodation unit is disposed on the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as an axis; the accommodation unit is disposed on the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as an axis; The projection system according to claim 1 .

7. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the projection system is viewed in a plan view in the Y-axis direction in a posture in which the projector is used, an outer periphery of the convex portion or the concave portion has a first curvature, When the projection system is viewed in a plan view in the Z-axis direction in a posture in which the projector is used, an outer periphery of the convex portion or the concave portion has a second curvature. The projection system according to claim 6 .

8. In the posture in which the projector is used, the projector cart includes a handle attached to the storage section and extending to a position higher than the storage section; The projection system according to claim 1 .

9. the projector cart includes a fixing part that can fix the position of the storage part relative to the base, The projection system according to claim 1 .

10. A cart for a projector that can accommodate a projector, the cart comprising: a housing; a light source unit housed in the housing; a light modulation unit housed in the housing and modulating light emitted from the light source unit; and a projection lens unit that emits the light modulated by the light modulation unit to the outside of the housing, a storage section that can store the projector in a usage position and can emit light emitted from the projection lens section to the outside of the projector cart, a base provided below the storage section, and wheels provided below the base, The base has a rotating part on which the storage part is rotatably mounted. Projector cart.

11. In the posture of use, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the storage unit is disposed on the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as an axis; 11. The projector cart of claim 10.

12. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the cart for projectors is in a use position and viewed vertically downward in a plan view, the outer periphery of the convex portion or the concave portion has a curvature.

12. The projector cart of claim 11.

13. In the posture of use, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the X axis being the direction in which the projection lens unit emits light, the accommodation unit is disposed on the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as an axis; 11. The projector cart of claim 10.

14. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the cart for the projector is viewed in a plan view in the Y-axis direction in a posture in use, the outer periphery of the convex portion or the concave portion has a curvature.

14. The projector cart of claim 13.

15. In the posture of use, when the vertical direction is defined as the Z axis, the direction perpendicular to the Z axis is defined as the Y axis, and the direction perpendicular to the Z axis and the Y axis is defined as the X axis, the X axis being the direction in which the projection lens unit emits light, the accommodation unit is disposed on the base so as to be rotatable along an XY plane parallel to the X axis and the Y axis, with the Z axis direction as an axis; the accommodation unit is disposed on the base so as to be rotatable along an XZ plane parallel to the X axis and the Z axis, with the Y axis direction as an axis; 11. The projector cart of claim 10.

16. the rotating portion is a convex portion or a concave portion provided on a surface of the base facing the accommodation portion, When the cart for the projector is in a use position and viewed in a plane in the Y-axis direction, an outer periphery of the convex portion or the concave portion has a first curvature; When the cart for the projector is in a use position and viewed in a plane in the Z-axis direction, the outer periphery of the convex portion or the concave portion has a second curvature.

16. The projector cart of claim 15.

17. In the posture of use, the projector cart includes a handle attached to the storage section and extending to a position higher than the storage section; 17. A cart for a projector according to any one of claims 10 to 16.

18. In projector carts, the projector cart includes a fixing part that can fix the position of the storage part relative to the base, 17. A cart for a projector according to any one of claims 10 to 16.

Images