Illuminated speaker

Abstract

To provide a speaker with lighting that can be portable, can maintain the attitude of stand type lighting, and also can easily change the attitude of the stand type lighting with one hand without supporting the equipment.SOLUTION: A speaker 1 with lighting sets torque of a hinge 137 to a value equal to or larger than a maximum value among values that the moment of first force may have, the moment of first force due to gravity force applied to a lighting unit 11 and an arm 15 having a fulcrum at the center of rotation of the hinge 137, and to a value less than the moment of second force due to gravity force to the speaker 1 with lighting around a rear end 804 as a fulcrum in a case where the speaker 1 with lighting falls down when a lighting unit 11 is to be rotated with first operation force on the hinge 137 as the center of rotation toward a rear part of the speaker 1 with lighting (equation (4)).SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an illuminated speaker. [Background technology]

[0002] In recent years, wireless speakers have been proposed that incorporate lighting devices into omnidirectional wireless speakers that spread 360 degrees, creating a soft light that evokes the emotion of the music, or that change the amount of light along with the music (for example, Patent Document 1).

[0003] Furthermore, conventional stand-type lighting fixtures are manufactured with ease of use in mind, and are shaped to be suitable for use as interior decoration, with some being able to change shape by rotating or unfolding (for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-19129 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-87766 Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional wireless speakers such as those described above were not designed for use as spotlights to illuminate food on a table or for reading or working at a desk, and did not provide sufficient light for such purposes. Therefore, there is a need for a device that can provide sufficient light for reading or working without getting in the way on a dining table or desk, can be used anywhere, and can also reproduce high-quality audio. However, conventional devices that combine portability with the posture-maintaining capabilities of stand-type lighting tend to fall over when the lighting unit is deployed to change its position or angle without supporting the device, making them inconvenient to use.

[0006] The present invention has been made to solve the above-mentioned problems. The object of the present invention is to provide a mechanism for providing an easy-to-use illuminated speaker that can be used not only as a wireless speaker but also as a lighting device for reading, etc., and that is portable and combines the operability of maintaining the posture of a stand-type light and being easily unfolded with one hand without supporting the device. [Means for solving the problem]

[0007] The present invention is an illuminated speaker comprising a first unit having a speaker inside, a second unit provided above the first unit and emitting light from a light-emitting unit, a third unit connected to the bottom of the first unit and supplying power to the first unit and the second unit, and an arm rotatably supported on the third unit by a first hinge and rotatably supporting the second unit at its tip by the second hinge, wherein the torque of the first hinge is set to be equal to or greater than the maximum possible value of a first force moment due to gravity acting on the second unit and the arm, with the center of rotation of the first hinge as the fulcrum, and less than a second force moment due to gravity acting on the illuminated speaker around the rear end of the illuminated speaker, which serves as a fulcrum if the illuminated speaker tips over when an attempt is made to rotate the second unit toward the rear of the illuminated speaker with a first operating force around the first hinge as the center of rotation. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a portable, user-friendly illuminated speaker that can maintain the position of a stand-type light and easily change the position of the stand-type light with one hand without supporting the device. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an example of an illuminated speaker. [Figure 2] 6A and 6B are six-sided views showing an example of an illuminated speaker. [Figure 3] FIG. 1 is a perspective cross-sectional view of an illuminated speaker. [Figure 4] Cross-section of an illuminated speaker. [Figure 5] 10A and 10B are diagrams showing how the lighting unit can be used by changing its position and orientation. [Figure 6] 10A and 10B are diagrams showing how the lighting unit can be used by changing its position and orientation. [Figure 7] 10A and 10B are diagrams showing how the lighting unit can be used by changing its position and orientation. [Figure 8] FIG. 10 is a diagram illustrating the setting of hinge torque. DETAILED DESCRIPTION OF THE INVENTION

[0010] An illuminated speaker according to an embodiment of the present invention will be described below with reference to Figures 1 to 8. Note that the illuminated speaker of this embodiment will be described assuming a speaker of a size that can be placed on a table or desk, but the present invention is not limited to this. For example, it may be a large speaker that can be connected to a musical instrument and used in a live music venue or event venue.

[0011] FIG. 1 is a perspective view showing an example of an illuminated speaker according to an embodiment. In FIG. 1, (a) is a perspective view seen from diagonally upper left, (b) is a perspective view seen from diagonally upper right, (c) is a perspective view seen from diagonally lower left, and (d) is a perspective view seen from diagonally lower right.

[0012] FIG. 2 is a six-view diagram showing an example of the illuminated speaker of the first embodiment. In FIG. 2, (a) is a front view, (b) is a left side view, (c) is a right side view, (d) is a rear view, (e) is a plan view, and (f) is a bottom view.

[0013] FIG. 3 is a perspective cross-sectional view of the illuminated speaker. FIG. 4 is a cross-sectional view of an illuminated speaker. 5 to 7 are diagrams showing how the lighting unit can be used by changing its position and orientation. FIG. 8 is a diagram for explaining the setting of the hinge torque.

[0014] The illuminated speaker 1 of this embodiment has, from the top, a lighting unit 11, a speaker unit 12, a battery unit 13, and a rotating base 14, and has arms 15 on the left and right. The lighting unit 11 includes a light emitting section therein (which is an LED light in this embodiment, but is not limited to this), and emits light downward in the state shown in FIGS.

[0015] As shown in Figures 3 and 4, the illuminated speaker 1 has a hinge 137 built into the battery unit 13, which rotatably supports the arm 15. The illuminated speaker 1 also has a hinge 113 built into the lighting unit 11, which rotatably supports the lighting unit 11. With this configuration, the arm 15 and lighting unit 11 of the illuminated speaker 1 can rotate freely (Figures 5 to 7).

[0016] The speaker unit 12 is an omnidirectional speaker that spreads 360 degrees. The speaker unit 12 has a mesh cover 121 on the top and a beam member 122 on the bottom. The beam member 122 has a slit 123. The speaker unit 12 outputs sound from the mesh cover 121 and the slit 123. The speaker unit 12 is connected to the battery unit 13 by the beam member 122.

[0017] The battery unit 13 has a battery 132 and supplies power to the lighting unit 11 and the speaker unit 12. As described above, the battery unit 13 has a hinge 137 therein that supports the arm 15, which will be described later. The battery unit 13 is rotatable (or pivotable) with respect to the rotating base 14.

[0018] The arm 15 is rotatably supported by a hinge 137 provided inside the battery unit 13, and is rotatably supported at its tip by a hinge 113 provided inside the lighting unit 11.

[0019] The hinge torque setting will be explained below with reference to FIG. 8 and other figures. First, the torque of the hinge 137 will be described. The torque of the hinge 137 is set so that the posture can be maintained at any angle. The angles that the hinge 137 can take are set, for example, within the range of -25 degrees to 25 degrees (angles in FIG. 5), with the vertical direction being 0 degrees. However, the angles that the hinge 137 can take are not limited to this. A force moment acts on the hinge 137, with the center of rotation 801 of the hinge 137 as a fulcrum, due to the gravity acting on the lighting unit 11 and the arm 15. For this reason, in order to maintain the posture of the hinge 137 at an arbitrary angle, it is necessary to set the torque of the hinge 137 to be equal to or greater than the maximum value that the force moment can take, with the center of rotation 801 of the hinge 137 as a fulcrum, due to the gravity acting on the lighting unit 11 and the arm 15.

[0020] The combined weight of the lighting unit 11 and arm 15 is defined as W1, the distance from the rotation center 801 of the hinge 137 to the center of gravity 802 of the combined lighting unit 11 and arm 15 is defined as L1, and the angle for maintaining posture (the angle between the arm 15 and the direction of gravity) is defined as θ1. The torque T1 of the hinge 137 is defined by the following equation (1). T1≧W1×L1×Sinθ1 (1)

[0021] Furthermore, the hinge 137 can change its position at any angle. When the moment of force acting around the rotation center 801 of the hinge 137 as a fulcrum due to the operating force applied to the lighting unit 11 or the like exceeds the torque of the hinge 137, the posture of the hinge 137 changes (the lighting unit 11 rotates around the hinge 137 as the rotation center).

[0022] The operating force applied in a direction perpendicular to the arm 15 to change the posture of the hinge 137 is F1, and the distance from the point 803 where the operating force F1 is applied (the force point of the operating force F1) to the rotation center 801 of the hinge 137 is L2. The relationship between these and the torque T1 of the hinge 137 is defined by the following equation (2). T1 <F1×L2 ···(2)

[0023] Furthermore, when the attitude of the hinge 137 is changed from any angle, the illuminated speaker 1 (hereinafter also referred to as "device") remains self-supporting. The operating force applied to change the attitude of the hinge 137 also acts as a force that tends to tip the device over, with the part indicated by 804 in the drawing as the fulcrum. The part indicated by 804 in the drawing is the bottom of the rotating base 14, which is the rear end of the device (hereinafter referred to as the "rear end 804"). If the force moment caused by the operating force with the rear end 804 as the fulcrum exceeds the force moment caused by gravity acting on the device with the rear end 804 as the fulcrum, the device will not be able to stand on its own and will tip over. For this reason, the torque of the hinge 137 is set so that the force moment caused by the lowest operating force that can change the attitude of the hinge 137 with the rear end 804 as the fulcrum does not exceed the force moment caused by gravity acting on the device with the rear end 804 as the fulcrum.

[0024] The operating force in the direction perpendicular to the line connecting the force point 803 and the fulcrum 804 is F2, the distance from the force point 803 to the rear end 804 is L3, the angle between the arm 15 and the line connecting the force point 803 and the rear end 804 is θ2, the weight of the equipment is W2, the distance from the center of gravity 805 of the equipment to the rear end 804 is L4, and the angle between the line connecting the center of gravity 805 of the equipment and the rear end 804 and the direction of gravity is θ3; the relationship between these is defined by the following equation. F2×L3≦W2×L4×sinθ3 If F2=F1×cosθ2, F1×cosθ2×L3≦W2×L4×sinθ3 (3)

[0025] From the above formulas (1), (2), and (3), the torque T1 of the hinge 137 is set as shown in the following formula (4).

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[0026] In other words, the torque of the hinge 137 is set to be equal to or greater than the maximum possible value of the moment of the first force due to gravity acting on the speaker unit 12 and the arm 15, with the center of rotation of the hinge 137 as the fulcrum, and less than the moment of the second force due to gravity acting on the speaker 1 around the rear end 804, which serves as the fulcrum if the speaker 1 were to tip over when an attempt was made to rotate the lighting unit 11 towards the rear of the speaker 1 with the hinge 137 as the center of rotation by an operating force.

[0027] By setting the torque of hinge 137 as described above, hinge 137 can maintain its position at any angle. Furthermore, the device can remain independent when changing the angle of hinge 137, and the position of hinge 137 can be easily changed with one hand without having to hold down the device body with one hand.

[0028] Next, the torque of the hinge 113 will be described. Hinge 113 can maintain its position at any angle. The angle that hinge 113 can take is set in the range of -90 degrees to 180 degrees (angle in FIG. 7), with the state shown in FIG. 2 being 0 degrees. A force moment acts on the hinge 113, with the rotation center 806 of the hinge 113 as a fulcrum, due to the gravity acting on the lighting unit 11. For this reason, in order to maintain the posture of the hinge 113 at an arbitrary angle, the torque of the hinge 113 needs to be equal to or greater than the force moment with the rotation center 801 of the hinge 113 as a fulcrum, due to the gravity acting on the lighting unit 11.

[0029] The weight of the lighting unit 11 is W3, the distance from the center of gravity 805 of the lighting unit 11 to the center of rotation 806 of the hinge 113 is L5, and the angle between the line connecting the center of gravity 805 of the lighting unit 11 and the center of rotation 806 of the hinge 113 and the direction of gravity is θ4. The torque T2 of the hinge 113 is defined by the following equation (5). T2≧W3×L5×sinθ4 (5)

[0030] Furthermore, the hinge 113 can change its position at any angle. When the moment of force acting around the rotation center 806 of the hinge 113 as a fulcrum due to an operating force applied to the lighting unit 11 or the like exceeds the torque of the hinge 113, the angle of the hinge 113 changes.

[0031] The operating force in the direction perpendicular to the line connecting the point (force point 807) where the operating force is applied to change the angle of the hinge 113 (i.e., to rotate the lighting unit 11 around the hinge 113 as the center of rotation) and the center of rotation 806 of the hinge 113 is defined as F3, and the distance from the force point 807 to the center of rotation 806 of the hinge 113 is defined as L6. The relationship between these and the torque T2 of the hinge 113 is defined by the following equation (6). T2 <F3×L6 ···(6)

[0032] Furthermore, the illuminated speaker 1 can change the attitude of the hinge 113 of the lighting unit 11 while maintaining the attitude of the hinge 137. The operating force that changes the attitude of hinge 113 also acts as a force that changes the attitude of hinge 137. If this force (i.e., the force moment caused by the operating force with the rotation center 801 of hinge 137 as the fulcrum) exceeds the torque of hinge 137, hinge 137 will not be able to maintain its attitude and its angle will change. For this reason, the torque of hinge 113 is set so that the force moment caused by the lowest operating force that can change the attitude of hinge 113 with the rotation center 801 of hinge 137 as the fulcrum does not exceed the torque of hinge 137.

[0033] The distance from the force point 807 to the rotation center 801 of the hinge 137 is L7, and the angle between the line connecting the force point 807 and the rotation center 801 of the hinge 137 and the direction of the operating force F3 is θ5. The relationship between the distance L7, the operating force F3, and the torque T1 of the hinge 137 is defined by the following equation (7). F3×L7×sinθ5 <T1 ···(7)

[0034] From the equations (5), (6), and (7), the torque T2 of the hinge 113 is set by the following equation (8).

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[0035] That is, the torque of the hinge 113 is set to be equal to or greater than the maximum value of the moment of the third force caused by gravity acting on the lighting unit 11, with the center of rotation of the hinge 113 as the fulcrum, and also set so that when an attempt is made to rotate the lighting unit 11 around the center of rotation of the hinge 113 by an operating force, the maximum value of the moment of the fourth force caused by the center of rotation of the hinge 137 as the fulcrum does not exceed the torque of the hinge 137.

[0036] By setting the torque of hinge 113 in this way, hinge 113 can maintain its position at any angle. Also, the position of hinge 113 can be easily changed with one hand while maintaining the position of hinge 137, without having to hold the main body with one hand.

[0037] As described above, by utilizing the stable base and the weight of the device and setting the torque of hinge 113 and the torque of hinge 137, the position and illumination angle of the lighting unit on the top of the device can be easily changed with one hand without having to support the device body with one hand, making it possible to freely illuminate the space. Therefore, it is possible to provide a portable, user-friendly illuminated speaker that can maintain the position of the stand-type lighting and easily change the position of the stand-type lighting with one hand without supporting the device.

[0038] It goes without saying that the various configurations and contents described above are not limited to these, and that various configurations and contents may be used depending on the application and purpose. The present invention is not limited to the above-described embodiments, and various modifications (including organic combinations of the embodiments) are possible based on the spirit of the present invention, and these modifications are not excluded from the scope of the present invention. In other words, all configurations that combine the above-described embodiments and their modifications are included in the present invention. [Explanation of symbols]

[0039] 1 illuminated speaker 11 Lighting unit 12 speaker units 13 Battery unit 14 Rotating base 15 Arm 113,137 hinges

Claims

1. An illuminated speaker, a first unit having a speaker therein; a second unit provided above the first unit and configured to emit light from a light-emitting portion; a third unit connected to a lower portion of the first unit and supplying power to the first unit and the second unit; an arm that is rotatably supported by the third unit by a first hinge and that rotatably supports the second unit at a tip end by a second hinge; A speaker with lights, characterized in that the torque of the first hinge is set to be equal to or greater than the maximum value that a first force moment due to gravity acting on the second unit and the arm, with the center of rotation of the first hinge as a fulcrum, and less than a second force moment due to gravity acting on the speaker with lights around the rear end of the speaker with lights, which serves as a fulcrum in the event that the speaker with lights falls over when an attempt is made to rotate the second unit toward the rear of the speaker with lights around the first hinge as a rotation center by a first operating force.

2. When the combined weight of the second unit and the arm is W1, the distance from the rotation center of the first hinge to the combined center of gravity of the second unit and the arm is L1, the angle between the arm and the direction of gravity is θ1, the distance from the force point of the first operating force to the rotation center of the first hinge is L2, the distance from the force point of the first operating force to the rear end is L3, the angle between the arm and a line connecting the force point of the first operating force and the rear end is θ2, the weight of the speaker with light is W2, the distance from the center of gravity of the speaker with light to the rear end is L4, and the angle between the line connecting the center of gravity of the speaker with light and the rear end and the direction of gravity is θ3, the torque T1 of the first hinge is calculated using the following formula: [Equation 1] 2. The illuminated speaker according to claim 1, wherein the speaker is set so as to satisfy the following condition.

3. 3. The illuminated speaker according to claim 1, wherein the torque of the second hinge is set to be equal to or greater than the maximum value of a third force moment caused by gravity acting on the second unit, with the center of rotation of the second hinge as a fulcrum, and when an attempt is made to rotate the second unit around the center of rotation of the second hinge by a second operating force, the maximum value of a fourth force moment caused by the center of rotation of the first hinge as a fulcrum does not exceed the torque of the first hinge.

4. The weight of the second unit is W3, the distance from the center of gravity of the second unit to the center of rotation of the second hinge is L5, the angle between the direction of gravity and a straight line connecting the center of gravity of the second unit and the center of rotation of the second hinge is θ4, the distance from the point of force of the second operating force to the center of rotation of the second hinge is L6, the distance from the point of force of the second operating force to the center of rotation of the first hinge is L7, the angle between the line connecting the point of force of the second operating force and the center of rotation of the first hinge and the direction of the second operating force is θ5, and the torque of the first hinge is T1, and the torque T2 of the second hinge is calculated by the following equation: [Equation 2] 4. The illuminated speaker according to claim 3, wherein the speaker is set so as to satisfy the following condition.

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