Audio output device

Abstract

To provide an audio output device that comprises both a port and a handgrip part, and can be made compact.SOLUTION: The present invention relates to a speaker SP that has a driver unit 200 incorporated in a housing 100. The speaker SP has: a handgrip part 110 which is provided on a side face wall of the housing; and a port part 120 which is provided in the housing. Therein: the handgrip part 110 is a through hole which is open in side face walls of the housing, and has a longitudinal size of 80 mm or more, a vertical size of 10 mm or more, and an upper-end face wall depth of 10 mm or more; and the port part 120 communicates with the through hole and an opening part in the housing.SELECTED DRAWING: Figure 4

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] In a sound output device such as a speaker, a port such as a bass reflex port for adjusting acoustic characteristics may be provided. In addition, a handle may be provided on the housing of the sound output device to facilitate handling of the sound output device. Patent Document 1 discloses a speaker equipped with both a handle and a port. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4086622 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when providing a speaker with both a port and a handle, as in Patent Document 1, it is necessary to secure an area on the surface of the housing for mounting the port opening and an area for mounting the handle, which can be an obstacle to miniaturizing the speaker.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a sound output device that is equipped with both a port and a handle portion and can be made compact. [Means for solving the problem]

[0006] The present invention provides an acoustic output device which has a driver unit incorporated within a housing, the acoustic output device having a handle portion provided on a side wall of the housing and a port portion provided within the housing, the handle portion being a through hole opening into the side wall of the housing, the through hole having a front-to-rear size of 80 mm or more, a vertical size of 10 mm or more and a depth of 10 mm or more in an upper end wall, and the port portion communicating with the through hole and an opening within the housing. [Brief description of the drawings]

[0007] [Figure 1] 1 is a plan view of a speaker that is an embodiment of a sound output device according to the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 3 is an enlarged side view of a region R1 in FIG. 2. [Figure 4] 3 is a cross-sectional view taken along line A1-A2 of FIG. 2. [Diagram 5] FIG. 5 is an enlarged cross-sectional view of a region R2 in FIG. [Figure 6] 5 is a cross-sectional view taken along line B1-B2 of FIG. 4. [Figure 7] 2 is a cross-sectional view taken along line C1-C2 of FIG. 1. [Figure 8] FIG. 8 is an enlarged cross-sectional view of a region R3 in FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0009] Fig. 1 is a plan view of a speaker SP, which is one embodiment of a sound output device according to the present invention, seen from above. Fig. 2 is a side view of the speaker SP seen from the direction of arrow X. Fig. 3 is an enlarged side view of region R1 in Fig. 2. Fig. 4 is a cross-sectional view taken along line A1-A2 in Fig. 2. Fig. 5 is a cross-sectional view taken along line B1-B2 in Fig. 4. Fig. 7 is a cross-sectional view taken along line C1-C2 in Fig. 1. Fig. 8 is a cross-sectional view taken along line C1-C2 in Fig. 1, and Fig. 8 is a cross-sectional view taken along line R3 in Fig. 7.

[0010] The speaker SP in this embodiment is a speaker that constitutes a line array speaker by stacking speakers SP of the same structure.

[0011] The speaker SP has a housing 100 in which a driver unit 200 (see FIG. 4) is built in. The housing 100 has a front wall 101 including sound emitting surfaces 201 of two driver units 200 on the left and right, a rear wall 102 facing the front wall 101, an upper wall 105 and a lower wall 106 which sandwich the front-rear direction of the speaker SP (i.e., the direction between the front wall 101 and the rear wall 102) from both sides in the vertical direction, and side walls 103 and 104 which sandwich the front-rear direction of the speaker SP from both sides in the horizontal direction.

[0012] Each of the side walls 103 and 104 has a handle portion 110 in the form of an elongated hole extending in the front-rear direction at a position in the center of the speaker SP in the up-down direction and slightly forward in the front-rear direction (see FIG. 2). This handle portion 110 is a through-hole formed in the side walls 103 and 104, and has a shape and dimensions that allow four fingers of an adult to be inserted therein. In the speaker SP, the driver unit 200 is disposed forward and the center of gravity is slightly forward, so the position of the handle portion 110 is also slightly forward to match the position of the center of gravity.

[0013] As shown in FIG. 3, the size D1 of the grip 110 in the front-rear direction is 80 mm or more. This 80 mm corresponds to the width of four fingers when gripping. In the illustrated example, D1=84 mm. The sizes D2f and D2r of the grip 110 in the up-down direction are 10 mm or more. This 10 mm corresponds to the thickness of one finger. In the illustrated example, the size D2f of the grip 110 in the up-down direction on the front wall side is 42.9 mm, and the size D2r of the grip 110 in the up-down direction on the rear wall side is 29.1 mm. The reason why the size D2f is longer than the size D2r is to make it easier to grip the grip 110 by tilting it forward with the front wall 101 side of the speaker SP facing forward. 5 and 6, the depth D3 of the upper end wall of the grip portion 110 is determined to correspond to the length of the inside of the middle joint or the middle joint and base joint that contacts the upper end surface when the user grips the grip portion 110, and is 10 mm or more. In the illustrated example, D3=29 mm. By determining the sizes D1, D2f, D2r, and D3 in this way, the upper end of the grip portion 110 can be supported by hand, making it easy to grip the speaker SP.

[0014] The user inserts the fingers of both hands into handles 110 on side walls 103 and 105, grasps the upper end of handle 110, lifts speaker SP, and places it on top of a lower speaker SP of the same structure.

[0015] 2, an arm 135 extending in the vertical direction is fixed to the edge of each of the rectangular side walls 103 and 104 on the side of the front wall 101 by a fastener such as a bolt. This arm 135 has a lower end portion forming a protrusion 131 that protrudes downward beyond the bottom wall 106, and an upper end portion forming a fixing portion 132 that protrudes upward beyond the top wall. When multiple speakers SP are stacked vertically, the protrusion portion 131 of the upper speaker SP is connected to the fixing portion 132 of the lower speaker SP.

[0016] Two ports 120 are disposed inside the housing 100. As shown in Fig. 4, one of the two ports 120 is disposed inside the side wall 103, and the other is disposed inside the side wall 104.

[0017] As shown in FIG. 5, each port 120 is a tube extending in the front-rear direction of the speaker SP in the housing 100, and its side covers the handle 110. The port 120 has a closed end 121 on the front wall 101 side, and is located near the front end of the handle 110. The port 120 has an open end 122 on the rear wall 102 side. The open end 122 is located in the housing 100, closer to the rear wall 102 than the rear end of the handle 110. In the illustrated example, the total length D8 of the port 120 is 158 mm. The port 120 communicates the handle 110, which is a through hole connected to an area outside the housing 100, with the open end 122 in the housing 100.

[0018] In each port 120, a protruding width D5 from the side wall 103 (104) of an area facing the handle portion 110 is longer than a protruding width D6 of an area not facing the handle portion 110. In the illustrated example, D5=51 mm, and D6=32 mm.

[0019] The direction of sound propagation through the handle 110 is the normal direction of the opening surface of the through hole, which is the handle 110. On the other hand, the direction of sound propagation through the port 120 is the front-rear direction of the speaker SP, which is the extension direction of the port 120. Thus, in this embodiment, the direction of sound propagation in the handle 110 and the direction of sound propagation in the port 120 are perpendicular to each other. Therefore, interference with components arranged inside the front wall 101 or inside the rear wall 102 can be avoided, and the speaker SP can be made smaller. Also, in this embodiment, since the upper surface of the handle 110 and the upper surface of the port 120 are separated by a size D7 (see FIG. 8), the inside of the housing can be pressed with the tip of a finger inserted into the handle 110. In the illustrated example, D7=21.3 mm. Therefore, the speaker SP can be held even easier.

[0020] The function of the port section 120 is as follows. In this embodiment, the driver unit 200 emits sound both outside and inside the housing 100. Here, the sound emitted inside the housing 100 is emitted outside the housing 100 via the port section 120 and the handle section 110. This sound is added to the sound emitted from the driver unit 200 to the outside of the housing 100, and the acoustic characteristics of the speaker SP are adjusted.

[0021] According to this embodiment, the handle portion 110 and the port portion 120 share the mounting area in the side walls 103 and 104, and each of the handle portion 110 and the port portion 120 does not require a separate mounting area. Therefore, according to this embodiment, it is possible to provide an audio output device that is equipped with both a port and a handle portion and can be made compact. Also, in this embodiment, the handle portion 110 and the port portion 120 are provided on the left and right side walls of the speaker SP, so that the handle portion 110 and the port portion 120 can be placed in a location that is easy to hold according to the center of gravity of the speaker SP.

[0022] 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.

[0023] (1) In the above embodiment, the handle portion and the port portion are provided on the left and right side walls. However, the port portion on one of the left and right side walls may be omitted.

[0024] (2) In the above embodiment, the handle and the port share the same mounting area on both the left and right side walls, but the handle and the port may use separate mounting areas on one of the side walls. In this case, too, the handle can be placed in a location that is easy to hold according to the center of gravity of the speaker.

[0025] (3) In the above embodiment, the present invention is applied to the speaker SP for forming a line array speaker. However, the present invention may be applied to other loudspeakers or line array speakers.

[0026] (4) The opening end 122 of the port portion 120 is not limited to being located on the rear wall 102 side. The position of the opening end 122 may be determined according to the shape of the port portion 120.

[0027] (5) The through hole (grip portion 110) and the port portion 120 may be integrally formed. In this case, the port portion 120 is fitted and fixed into the grip portion 110, and therefore can be easily screwed to the housing 100. [Explanation of symbols]

[0028] SP...speaker, 100...housing, 200...driver unit, 201...sound emission surface, 101...front wall, 102...rear wall, 103, 104...side walls, 105...top wall, 106...bottom wall, 110...handle portion, 120...port portion, 135...arm, 131...protrusion portion, 132...fixing portion.

Claims

1. In an audio output device having a driver unit built into a housing, A handle portion provided on a side wall of the housing; A port portion provided in the housing, the handle portion is a through hole that opens into a side wall of the housing, the through hole having a front-rear dimension of 80 mm or more, a vertical dimension of 10 mm or more, and a depth of an upper end wall of 10 mm or more; The port portion communicates with the through hole and an opening in the housing. Audio output device.

2. The handle portion is provided on the left and right side walls of the housing. The sound output device according to claim 1 .

3. The extending direction of the port portion and the normal direction of the opening surface of the through hole intersect with each other. The sound output device according to claim 1 .

4. The through hole has a vertical size at a front end side longer than a vertical size at a rear end side. The sound output device according to claim 1 .

5. The through hole and the port portion are integrally formed. The sound output device according to claim 1 .

6. The through hole and the port portion are provided on each of the left and right side walls of the housing. The sound output device according to claim 1 .

7. the acoustic output device is a loudspeaker; The sound output device according to claim 1 .

8. The acoustic output device is a line array speaker. The sound output device according to claim 1 .

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