Audio output device

Abstract

To facilitate assembly of a line array speaker.SOLUTION: The present invention relates to a speaker SP that has a driver unit 200 incorporated between a first surface 105 and a second surface 105 facing each other. The speaker SP is stacked on the other speaker SP having the same structure. Therein: the first surface 105 has a groove part 121 extending in a predetermined extension direction; the second surface 106 has a protrusion part 131; and the groove part 121 has a fixing part 132 for fixing the protrusion part 131 at one end in the extension direction. When the speaker SP is stacked on the other speaker SP, the protrusion part 131 engages the groove part 121 of the other speaker, and the protrusion part 131 moves to a fixation part 132 of the other speaker SP along the groove part 121.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an audio output device such as a line array speaker or a loudspeaker. [Background technology]

[0002] A line array speaker is an audio output device in which sound source speakers are stacked vertically in a straight line. By adjusting the sound emission direction of each speaker, the line array speaker can adjust the vertical sound spread and emit sound to a targeted area.

[0003] Patent Document 1 discloses a speaker mounting system that configures a line array speaker. In this speaker mounting system, a first speaker has an upper joint that can be joined to a support. Also, a second speaker has an upper joint that can be joined to a lower joint of the first speaker. With this speaker mounting system, a line array speaker can be configured by stacking multiple speakers in the order of first speaker, second speaker, .... [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent Application Publication No. 2022 / 0321982 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the line array speaker disclosed in Patent Document 1 requires that each speaker be stacked at the joints while visually inspecting the joints, making it difficult to assemble by a small number of people easily and in a short time.

[0006] The present invention has been made in view of the above circumstances, and has an object to provide a technical means for facilitating the assembly of a line array speaker. [Means for solving the problem]

[0007] The present invention provides an audio output device having a driver unit incorporated between opposing first and second surfaces, the audio output device being stacked on other audio output devices of the same structure, the first surface having a groove portion extending in a predetermined extension direction and the second surface having a protrusion portion, the groove portion having a fixing portion for fixing the protrusion portion at one end or halfway in the extension direction, and when the audio output device is stacked on the other audio output device, the protrusion portion engages with the groove portion of the other audio output device, and the protrusion portion moves along the groove portion to the fixing portion of the other audio output device. [Brief description of the drawings]

[0008] [Figure 1] 1 is a side view showing a line array speaker constituted by speakers that are one embodiment of the sound output device according to the present invention. [Diagram 2] FIG. 2 is a plan view of the speaker seen from above. [Diagram 3] FIG. 2 is a plan view of the speaker as viewed from below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] FIG. 1 is a side view showing a line array speaker ASP composed of speakers SP, which is one embodiment of the sound output device according to the present invention. In FIG. 1, the line array speaker ASP is composed of two speakers, SP-1 and SP-2, stacked vertically. The speakers SP-1 and SP-2 have the same structure. Hereinafter, when there is no need to distinguish between the speakers SP-1 and SP-2, they will be collectively referred to as speaker SP. The line array speaker ASP may be composed of three or more speakers SP. FIG. 2 is a plan view of the speaker SP as viewed from above. FIG. 3 is a plan view of the speaker SP as viewed from below.

[0011] The speaker SP has a housing 100 in which a driver unit 200 is built. The housing 100 has a front surface 101 including sound emitting surfaces 201 of two driver units 200 on the left and right, a rear surface 102 facing the front surface 101, a first surface 105 and a second surface 106 sandwiching the front-rear direction of the speaker SP (i.e., the direction between the front surface 101 and the rear surface 102) from both sides in the vertical direction, and a third surface 103 and a fourth surface 104 sandwiching the front-rear direction of the speaker SP from both sides in the horizontal direction. In this example, the top surface of the housing 100 is the first surface 105, and the bottom surface is the second surface 106. In the speaker SP, the drive unit 200 is built between the first surface 105 and the second surface 106 which face each other.

[0012] On each of the third surface 103 and the fourth surface 104, a long hole-shaped handle portion 110 extending in the front-rear direction is provided at a position at the center of the speaker SP in the vertical direction and slightly forward in the front-rear direction. The handle portion 110 is a through hole formed in the side surfaces 103 and 104, and has a shape and dimensions that allow four adult fingers to be inserted. Specifically, the handle portion 110 has a front-rear size D1 of 80 mm or more (width of four fingers when gripped), a vertical size D2f, D2r of 10 mm or more (thickness of one finger), and a depth of the upper end wall of 10 mm or more. Note that the vertical size D2f on the front side is preferably longer than the vertical size D2r on the rear side. In a preferred embodiment, the handle portion 110, which is a through hole, communicates with a bass reflex port arranged in the housing 100. The user inserts the fingers of the left and right hands into the handles 110 on the sides 103 and 105 to lift the upper speaker SP (for example, speaker SP-2 in FIG. 1) and place it on the lower speaker SP (for example, speaker SP-1 in FIG. 1).

[0013] The speaker SP has grooves 121 extending in a predetermined extension direction on the first surface 105. More specifically, this extension direction is the front-to-rear direction of the speaker SP, and the speaker SP has two grooves 121 on the first surface 105 at the boundary with the third surface 103 and at the boundary with the fourth surface 104.

[0014] Moreover, the speaker SP has a protrusion 131 on the second surface 106. More specifically, an arm 135 extending in the vertical direction is fixed to the edge of each of the third surface 103 and the fourth surface 104 on the front surface 101 side by a fastener such as a bolt. The arm 135 has a lower end portion as the protrusion 131 protruding downward from the second surface 106, and an upper end portion as the fixing portion 132 protruding upward from the first surface 105. Here, the above-mentioned groove portion 121 is a means for guiding the protrusion 131 of the other speaker SP. Also, the fixing portion 132 is a means for fixing the protrusion 131 of the other speaker SP. The above-mentioned groove portion 121 extends from the fixing portion 132 toward the rear surface 102 side. That is, the fixing portion 132 is located at one end of the groove portion 121 on the first surface 105.

[0015] 1, when the speaker SP-2 is stacked on the other speaker SP-1, the protrusion 131 of the speaker SP-2 engages with the groove 121 of the other speaker SP-1. The protrusion 131 of the speaker SP-2 slides along the groove 121 of the speaker SP-1. As a result, the protrusion 131 of the speaker SP-2 moves to the position of the fixing portion 132 of the speaker SP-1.

[0016] The groove 121 extends from the fixed portion 132 to an end portion a predetermined distance away from the rear surface 102. This end portion serves as a locking portion 122 that limits the movement of the protrusion 131 toward the rear surface. It is preferable that the length from the fixed portion 132 of the groove 121 to the locking portion 122 is shorter than half the length from the fixed portion 132 to the rear surface 102.

[0017] FIG. 1 shows an enlarged view of a first state R1 and a second state R2 of a region R near the fixing portion 132 of the speaker SP. The first state R1 is a state in which the protrusion 131 is separated from the fixing portion 132, and the second state R2 is a state in which the protrusion 131 has reached the position of the fixing portion 132. The protrusion 131 has a through hole 133 for attaching a release pin capable of protruding inward in the width direction of the speaker SP. The fixing portion 132 has a through hole 134 for accommodating the release pin. In the second state in which the protrusion 131 has reached the position of the fixing portion 132, when the release pin is inserted from the outside of the through hole 133 of the protrusion 131, the release pin is accommodated in the through hole 133 of the protrusion 131 and the through hole 134 of the fixing portion 132. As a result, the protrusion 131 is fixed to the fixing portion 132. The release pin may be attached to the protruding portion 131 or the fixed portion 132, and when the second state is reached, the protruding portion 131 and the fixed portion 132 may be automatically fixed together.

[0018] As shown in FIG. 2, the first surface 105 has rectangular bottom sliders 153 and 154 extending in the front-rear direction of the speaker SP. The bottom sliders 153 and 154 are symmetrical with respect to the central axis ax of the first surface 105 extending in the front-rear direction of the speaker SP. Here, the bottom slider 153 is composed of a first protruding region 153a having a predetermined protruding length from the first surface 105 and a second protruding region 153b having a shorter protruding length from the first surface 105 than the first protruding region 153a. Similarly, the bottom slider 154 is composed of a first protruding region 154a having a predetermined protruding length from the first surface 105 and a second protruding region 154b having a shorter protruding length from the first surface 105 than the first protruding region 154a.

[0019] As shown in FIG. 3, the second surface 106 has rectangular top sliders 163 and 164 extending in the front-rear direction of the speaker SP. The top sliders 163 and 164 are symmetrical with respect to the central axis ax of the second surface 106 extending in the front-rear direction of the speaker SP. In this embodiment, the central axis ax of the second surface 106 extending in the front-rear direction of the speaker SP and the central axis ax of the first surface 105 are at the same position in the horizontal direction. The top sliders 163 and 164 are symmetrical with respect to the axis ax, which is the same as the axis of symmetry of the bottom sliders 153 and 154. The top sliders 163 and 164 occupy a position facing the bottom sliders 153 and 154 in the horizontal direction.

[0020] Top slider 163 is made up of a first protruding region 163a having a predetermined protruding length from second surface 106, and a second protruding region 163b having a shorter protruding length from second surface 106 than first protruding region 163a. ​​Similarly, top slider 164 is made up of a first protruding region 164a having a predetermined protruding length from second surface 106, and a second protruding region 164b having a shorter protruding length from second surface 106 than first protruding region 164a.

[0021] The bottom sliders 153 and 154 and the top sliders 163 and 164 play a role in assisting in the positioning and relative movement of the upper speaker SP relative to the lower speaker SP. More specifically, in this embodiment, when the speakers SP are stacked, the first and second protrusion regions of the bottom sliders 153 and 154 of the upper speaker SP come into contact with the second and first protrusion regions of the top sliders 163 and 164 of the lower speaker SP. The upper speaker SP moves relative to the lower speaker SP with its first and second protrusion regions in contact with the second and first protrusion regions of the lower speaker SP. In this way, in this embodiment, the second surface 106 of the upper speaker SP does not come into direct contact with the first surface 105 of the lower speaker SP, so that the first surface 105 and the second surface 106 are not scratched.

[0022] In this embodiment, when a user configures the line array speaker ASP of FIG. 1, the user stacks the upper speaker SP-2 on the groove portions 121 (two places, left and right) of the lower speaker SP-1, and engages the protrusions 131 (two places, left and right) of the upper speaker SP-2 with the groove portions 121 (two places, left and right) of the lower speaker SP-1.

[0023] At that time, the first protruding region 163a of the top slider 163 of the upper speaker SP-2 rests on the second protruding region 153b of the bottom slider 153 of the lower speaker SP-1. Also, the first protruding region 164a of the top slider 164 of the upper speaker SP-2 rests on the second protruding region 154b of the bottom slider 154 of the lower speaker SP-1. In this way, the top sliders 163 and 164 and the bottom sliders 153 and 154 assist in the positioning of the speaker SP-2 relative to the speaker SP-1, and guide the relative movement of the speaker SP-2 in the front-to-rear direction.

[0024] When the user pushes the upper speaker SP-2 forward while visually viewing the groove 121 of the lower speaker SP-1, the protrusion 131 of the speaker SP-2 slides along the groove 121 and reaches the fixing portion 132 of the lower speaker SP-1. This allows the release pin to be inserted from the through hole 133 of the protrusion 131 into the through hole 134 of the fixing portion 132, and the upper speaker SP-2 is fixed to the lower speaker SP-1.

[0025] As described above, the sound output device according to this embodiment is a speaker SP with a driver unit 200 built in between the first surface 105 and the second surface 106 facing each other, the speaker SP is stacked on other speakers SP of the same structure, the first surface 105 has a groove 121 extending in a predetermined extension direction, the second surface 106 has a protrusion 131, the groove 121 has a fixing portion 132 for fixing the protrusion 131 at one end in the extension direction, and when the speaker SP is stacked on the other speakers SP, the protrusion 131 engages with the groove 121 of the other speaker SP, and the protrusion 131 moves along the groove 121 to the fixing portion 132 of the other speaker SP. Therefore, according to this embodiment, the protrusion 131 is not stacked by targeting one point of the fixing portion 132, but each speaker SP can be stacked within a range that can be moved along the groove 121 to the fixing portion 132. Therefore, the line array speaker can be easily assembled by a small number of people.

[0026] Although one embodiment of the present invention has been described above, other embodiments of the present invention are also possible. For example, the following embodiments are possible.

[0027] (1) The locking portion 122 may be omitted, and the groove portion 121 may be extended to the rear surface 102.

[0028] (2) In the above embodiment, the fixing portion 132 is provided at the front end of the groove 121 (that is, at the front surface 101). However, the fixing portion 132 may be provided at a midpoint of the groove 121.

[0029] (3) In the above embodiment, the first surface 105 is the upper surface of the housing 100 and the second surface 106 is the lower surface of the housing 100, but the first surface 105 may be the lower surface of the housing 100 and the second surface 106 may be the upper surface of the housing 100. In this case, the groove portion 121 and the fixing portion 132 may be provided on the lower surface of the housing 100, which is the first surface 105, and the protrusion portion 131 may be provided on the upper surface of the housing 100, which is the second surface 106.

[0030] (4) In the above embodiment, the present invention is applied to the speaker SP that constitutes the line array speaker ASP. However, the present invention may be applied to other loudspeakers or line array speakers.

[0031] (5) The bottom sliders 153 and 154 and the top sliders 163 and 164 may be omitted. [Explanation of symbols]

[0032] ASP...line array speaker, SP, SP-1, SP-2...speakers, 100...housing, 200...driver unit, 201...sound emitting surface, 101...front surface, 102...rear surface, 103...third surface, 104...fourth surface, 105...first surface, 106...second surface, 121...groove portion, 122...engagement portion, 131...protrusion portion, 133...through hole, 132...fixing portion, 134...through hole, 153, 153...bottom slider, 163, 164...top slider.

Claims

1. An acoustic output device having a driver unit incorporated between a first surface and a second surface opposed to each other, The audio output device is stacked with other audio output devices of the same construction; The first surface has a groove portion extending in a predetermined extension direction, The second surface has a protrusion, The groove portion has a fixing portion for fixing the protrusion portion at one end or in the middle of the extending direction, When the sound output device is stacked on the other sound output device, the protrusion engages with the groove of the other sound output device, The sound output device, wherein the protrusion moves along the groove to the fixed portion of the other sound output device.

2. The sound output device according to claim 1 , wherein the groove has a locking portion at a position away from the fixed portion to limit movement of the protrusion.

3. The sound output device according to claim 1 , wherein the first surface is a top surface of the sound output device, and the second surface is a bottom surface of the sound output device.

4. The sound output device according to claim 1 , wherein the groove extends in a front-rear direction of the sound output device.

5. a third surface and a fourth surface sandwiching the front-rear direction from both sides in the horizontal direction; the first surface has two grooves at a boundary with the third surface and at a boundary with the fourth surface, The sound output device according to claim 4 , further comprising two protrusions at a boundary between the second surface and the third surface and at a boundary between the second surface and the fourth surface.

6. The sound output device according to claim 5 , wherein the third surface and the fourth surface each have a grip portion.

7. The audio output device of claim 1 , wherein the audio output device is a loudspeaker.

8. The sound output device according to claim 1 , wherein the sound output device and the other sound output device form a line array speaker.

Images