CN209861152U - Speaker system support and speaker system support structure - Google Patents

Abstract

The utility model relates to a set up speaker system supporting piece and speaker system supporting structure that operability is good. The speaker system support includes: a flat plate-like base portion having a mounting surface to be mounted on a mounting surface; and a pair of side plates formed to extend from the base portion to one side thereof so as to face each other. The side plate has: a first cut-in portion formed by cutting from an outer edge at a position having a first distance from the mounting surface; a second cut portion formed by cutting from the outer edge at a position that is a second distance different from the first distance with respect to the mounting surface; a first through-hole group including a plurality of through-holes formed in a first arc around a predetermined position in the first cut-in portion; and a second through hole group formed by a plurality of through holes on a second arc with a predetermined position in the second cut portion as the center.

Description

Speaker system support and speaker system support structure

Technical Field

The present invention relates to a speaker system support member and a speaker system support structure for supporting a connected speaker system in which two speaker systems are connected.

Background

Patent document 1 describes: a technique for constructing a speaker cluster system in which a plurality of speaker systems are arranged in one direction by connecting adjacent speaker systems to each other with a connecting fitting.

Prior art documents

Patent document

Patent document 1: japanese patent No. 4916518.

SUMMERY OF THE UTILITY MODEL

Problem to be solved by the utility model

There are cases where sound is provided for a relatively narrow listening area having a depth in the horizontal direction with the distance in the vertical direction suppressed, such as a meeting room, a living space of a shopping mall, and an auditorium having a ceiling in a stadium.

In this case, the connected speaker system in which two relatively small speaker systems are connected is more suitable than the cluster system in which a plurality of speaker systems are connected, depending on the degree of width of the listening area.

The coupled speaker system is formed by overlapping and coupling two speaker systems in the thickness direction, each having directivity such that output sound does not spread in the thickness direction of the cabinet but spreads in the width direction. The connected speaker system is installed on a wall surface or a ceiling surface so that the output direction of sound is substantially horizontal or nearly horizontal. Thereby, a preferable sound can be provided to the above-described listening area having a depth in the horizontal direction.

Here, it is considered to use the connection fitting described in patent document 1 for connecting two speaker systems.

However, the connection fittings described in patent document 1 are manufactured so that the center lines of the adjacent speaker systems are at predetermined angles, and are fixed to the speaker systems by fastening bolts.

Therefore, when the connected speaker system is installed on a wall surface or a ceiling surface of a listening area and the output direction of sound from the connected speaker system is optimally adjusted according to the acoustic characteristics of the scene, it is necessary to replace the connecting fitting with another connecting fitting while manually supporting the connected speaker system by removing the bolt. Therefore, the setting operability is not good.

Accordingly, an object of the present invention is to provide a speaker system support member and a speaker system support structure which are excellent in installation operability.

Means for solving the problems

In order to solve the above problem, the present invention has the following configuration.

1) A loudspeaker system support comprising:

a flat plate-shaped base portion having a mounting surface to be mounted on a mounting surface; and

a pair of side plates formed to extend from the base portion to one side of the base portion so as to face each other,

the side plate has:

a first cut-in portion formed by cutting from an outer edge at a position having a first distance from the mounting surface;

a second cut portion formed by cutting from an outer edge at a position that is a second distance from the mounting surface, the second distance being different from the first distance;

a first through-hole group including a plurality of through-holes formed in a first arc around a predetermined position in the first cut-in portion; and

and a second through-hole group including a plurality of through-holes formed in a second arc around a predetermined position in the second cut portion.

2) A speaker system support structure comprising:

a first speaker system and a second speaker system having mounting holes in which bolts can be screwed, on a side surface of a housing; and

a support for the loudspeaker system is provided,

the speaker system support has:

a flat plate-shaped base portion having a mounting surface to be mounted on a mounting surface;

a pair of side plates formed to extend from the base portion to one side of the base portion so as to face each other; and

a cut-in portion and a plurality of through holes formed in the side plate,

the cut-in portion is engageable with a threaded portion of a bolt screwed into the mounting hole portion of the first speaker system,

the plurality of through holes are arranged on an arc centered on an axis of the screw portion engaged with the innermost side of the cut portion and can be fastened together with the mounting hole portion of the second speaker system,

the speaker system support structure allows the first speaker system and the second speaker system to be mounted with the angle thereof adjustable with respect to the mounting surface by engaging the cut-out portion with a threaded portion of a bolt screwed into the mounting hole portion of the first speaker system and fastening one selected from the plurality of through holes together with the mounting hole portion of the second speaker system.

Effect of the utility model

According to the utility model discloses, can obtain setting up the good effect of operability.

Drawings

Fig. 1 is a front view of a speaker system 1 used in a speaker system support structure SK as an example of a speaker system support structure according to an embodiment of the present invention;

fig. 2 is a top view of the speaker system 1;

fig. 3 is a side view of the speaker system 1;

fig. 4 is a perspective view of a stand 2 as an example of a speaker system support member according to an embodiment of the present invention;

fig. 5 is a side view of the bracket 2;

fig. 6 is a side view of the speaker system SK at a first connection angle to which the speaker system 51 is connected;

fig. 7 is a plan view of a state where the bracket 2 is attached to the connected speaker system 51;

fig. 8 is a first supporting mode diagram showing a state where the speaker system 51 is supported and coupled at a first supporting angle by the bracket 2;

fig. 9 is a second supporting mode diagram showing a state where the speaker system 51 is supported and coupled by the bracket 2 at a second supporting angle;

fig. 10 is a third supporting mode diagram showing a state where the speaker system 51 is supported and coupled by the bracket 2 at a third supporting angle;

fig. 11 is a fourth supporting mode diagram showing a state where the speaker system 51 is supported and coupled by the bracket 2 at a fourth supporting angle;

fig. 12 is a side view showing a coupled speaker 52 having a coupling angle of the coupled speaker system 51 as a second coupling angle;

fig. 13 is a fifth supporting mode diagram showing a state where the speaker system 52 is supported and coupled by the bracket 2 at a fifth supporting angle;

fig. 14 is a sixth supporting mode diagram showing a state where the speaker system 52 is supported and coupled by the bracket 2 at a sixth supporting angle;

fig. 15 is a seventh supporting mode diagram showing a state where the speaker system 52 is supported and coupled by the bracket 2 at a seventh supporting angle;

fig. 16 is an eighth supporting mode diagram showing a state where the speaker system 52 is supported and coupled by the bracket 2 at an eighth supporting angle;

fig. 17 is an eighth supporting mode diagram showing a state where the speaker system 51 is supported and coupled by the bracket 2 at an eighth supporting angle;

fig. 18 is a side view showing a state in which the cap 8 is attached to the mounting holes 15a, 15c, and 15d that are not used in the coupled speaker system 52;

FIG. 19 is an installation view of the cap 8 at the position S19-S19 in FIG. 18;

fig. 20 is a side view showing a state in which the cap 8 is attached to the mounting holes 15b, 15c, and 15d that are not used in the coupled speaker system 51;

fig. 21 is a side view showing a holder 2A as a modification of the holder 2.

Detailed Description

A speaker system support structure and a speaker system support according to an embodiment of the present invention will be described with reference to a speaker system support structure SK and a stand 2 of an embodiment.

(examples)

The speaker system support structure SK includes a coupling speaker system 51 and a bracket 2 (see fig. 8). As shown in fig. 6, the coupled speaker system 51 is a system in which two speaker systems 1 are arranged so that the sound output directions are the same (the left direction in fig. 6) and coupled by using a coupling member 4.

First, the speaker system 1 will be described with reference to fig. 1 to 3. For convenience of explanation, the directions of the speaker system 1, i.e., up and down (thickness), left and right (width), and front and back (depth), are defined as the directions shown in fig. 1 to 3.

The speaker system 1 includes a housing 11, a speaker grill 12, and a speaker unit SP (fig. 2) accommodated inside the housing 11.

The housing 11 is a hexahedron having a vertical and lateral symmetry, and the thickness decreases toward the rear.

A speaker grill 12 is attached to the front end portion of the housing 11 having the largest thickness. Sound output from the speaker unit SP housed inside the housing 11 is emitted to the outside of the housing 11 through the speaker grill 12. The center axis of the emitted sound is denoted as center axis CL 1.

The sound emitted from the housing 11 to the outside thereof, particularly the directivity in the thickness direction, is adjusted and suppressed in advance by design.

Specifically, as shown in fig. 3, the speaker system 1 has a spread of an angle θ a1 from the upper end and the lower end of the sound emitting surface 13 to the center axis CL1 as the directivity in the thickness direction. The angle θ a1 is, for example, 7.5 °, is significantly suppressed as compared with a general speaker system, and emphasizes the directivity in the direction of the center axis CL 1. Accordingly, the vertical spread of the sound emitted from the speaker system 1 falls within the range of the angle θ a as shown in fig. 3.

The speaker system 1 has a practically symmetrical shape about the position of the center axis CL1, in the left-right direction and in the up-down direction.

The housing 11 is formed with a recessed portion 113 whose four corner ridge portions are cut in an L shape. A coupling attachment portion 14 having a female screw is provided in a front portion of a surface that serves as a side surface of each recess 113.

The side surfaces 111 and 111 of the housing 11, which have the maximum width in the left-right direction, are provided with mounting hole groups 15, respectively. Since the housing 11 has a bilaterally symmetrical shape, the mounting hole group 15 shown in the right side view in fig. 3 will be described as a representative.

In fig. 3, the center of the mounting hole group 15 is located on the arc LN1, and includes a group of 4 mounting holes 15a to 15d arranged vertically symmetrically, and the center of the arc LN1 is located on the center axis CL 1.

The mounting holes 15a to 15d have female screw portions 15a1 to 15d1 and seat portions 15a2 to 15d2 having enlarged diameters to become seats, respectively. The mounting holes 15a to 15d have the same shape. As shown in the cross-sectional shape of fig. 19, the female screw portions 15a1 to 15d1 may be formed by providing a nut plate 9 on the inner side of the housing 11 and making the female screw 91a of the nut 91 into female screw portions 15a1 to 15d 1. The cross-sectional shape at this time is shown in fig. 19.

Next, the holder 2 will be described with reference to fig. 4 and 5.

The holder 2 has: a base portion 21 which is a rectangular flat plate-like portion having a longitudinal direction in a left-right direction; and a pair of side plates 22 and 23 that rise from both ends in the longitudinal direction of the base 21 in the same orthogonal direction via bends R and face each other.

A pair of mounting hole groups 211, 212 is formed on the base 21 in left-right symmetry.

As shown in fig. 4, the mounting hole groups 211 and 212 have a plurality of through holes 211a and 212a, respectively.

The side plates 22 and 23 are bilaterally symmetrical. Hereinafter, the right side plate 22 will be described in detail with reference to fig. 5 as a side view thereof as a representative example.

The side plate 22 has a mounting portion 3.

The mounting portion 3 includes an inner cut 31, an outer cut 32, an inner through hole group 34, and an outer through hole group 35.

As shown in fig. 5, the upper edge portion 22a is formed in the same shape with the inner cut portion 31 and the outer cut portion 32 separated in the front-rear direction with respect to the mounting surface 21a, and the upper edge portion 22a is an upper edge portion of the outer edge of the side plate 22.

Specifically, the inner cut 31 and the outer cut 32 of the side plate 22 are formed at positions having different distances in the front-rear direction with respect to the mounting surface 21 a. In this example, in side plate 22, the distance (second distance) from mounting surface 21a at the position where outer cut 32 is formed is larger (farther) than the distance (first distance) from mounting surface 21a at the position where inner cut 31 is formed.

The inner cut 31 and the outer cut 32 are cut obliquely downward and forward from the upper edge 22 a. The innermost portions of the inner cut 31 and the outer cut 32 are formed in semicircular shapes centered on the centers CL31 and CL32, respectively.

The centers CL31 and CL32 are the positions of the axes of the screw portions of the bolts when the bolts screwed into the mounting holes 15a to 15d are engaged with the innermost portions of the inner cut 31 and the outer cut 32, respectively.

A longitudinal cut portion 33 is formed at a position offset below the front edge portion 22b, and the front edge portion 22b is a front edge portion of the outer edge of the side plate 22. The vertical cut 33 is formed in a semicircular shape cut from the front edge 22b to the rear, and the innermost part is centered on the center CL 33.

An inner through hole group 34 (first through hole group 34) is formed near the lower edge portion 22c of the side plate 22. The inner through hole group 34 is a group of through holes arranged in an arc LN31 (first arc LN31), and the arc LN31 has a radius R31 around a center CL31 which is a predetermined position of the inner incision 31.

The inner through hole group 34 is three through holes 34a to 34c in this example. In fig. 5, the position of the through hole 34a is determined such that a line segment connecting the center thereof to the center CL31 is parallel to the mounting surface 21a of the base 21.

An outer through hole group 35 (second through hole group 35) is formed at a position close to the upper edge portion 22a with respect to the inner through hole group 34.

The outer through hole group 35 is a group of through holes arranged in an arc LN32 (second arc LN32), and the arc LN32 has a radius R32 around a center CL32 which is a predetermined position of the outer incision 32.

The outer through hole group 35 is 5 through holes 35a to 35e in this example.

In this example, the radius R31 and the radius R32 are set to the same value.

The through holes 34a to 34c of the inner through hole group 34 and the through holes 35a to 35e of the outer through hole group 35 are formed in a shape such that the screw portion of the bolt screwed with the internal screw portions 15a1 to 15d1 of the mounting holes 15a to 15d of the housing 11 can pass therethrough and the head of the bolt cannot pass therethrough.

The cut widths of the inner cut 31, the outer cut 32, and the longitudinal cut 33 are also the same as the widths at which the thread portion of the bolt screwed into the female thread portions 15a1 to 15d1 can pass and the head portion of the bolt cannot pass.

As shown in fig. 6, two speaker systems 1 are arranged (overlapped) in the vertical direction, and the lower side coupling attachment portion 14 of the speaker system 1 placed on the upper surface and the upper side coupling attachment portion 14 of the speaker system 1 placed on the lower surface are coupled by the coupling member 4, thereby coupling the front sides of the speaker systems 1.

The coupling member 4 is a set of a coupling plate 41 and a nut plate 42.

The connecting plate 41 is a metal plate having a pair of through holes arranged in parallel. The nut plate 42 is a so-called plate nut in which a pair of through holes are arranged in parallel and a nut is welded and fixed to one of the through holes.

The bolt 43a is inserted through one through hole of the connection plate 41 and screwed into the connection member 4 of one speaker system 1, and similarly, the bolt 43b is inserted through a through hole of the nut plate 42 without a nut and screwed into the connection member 4 of the other speaker system 1.

The coupling plate 41 and the nut plate 42 can be coupled and fixed linearly or bent at an arbitrary angle by inserting the coupling bolt 44 through the other through hole of the coupling plate 41 and screwing the nut of the nut plate 42.

By using the connecting member 4, the two speaker systems 1 can take at least a first posture in which the center axes CL1 are parallel and a second posture in which the center axes CL1 of the upper and lower speaker systems 1 are oblique to each other, as shown in fig. 6.

In this example, as shown in fig. 12, the second posture is a posture in which the upper surface of the cabinet 11 of the lower speaker system 1 and the lower surface of the cabinet 11 of the upper speaker system 1 are substantially parallel to each other.

Hereinafter, for the sake of descriptive distinction, the connected speaker system in the first posture in which the central axes CL1 are parallel to each other is referred to as the connected speaker system 51, and the connected speaker system in the second posture is referred to as the connected speaker system 52.

In the second posture shown in fig. 12, a distance Lb between the mounting hole portion 15c of the upper speaker system 1 and the mounting hole portion 15b of the lower speaker system 1 coincides with a radius R32 in the stand 2.

As shown in fig. 7, the bracket 2 is supported so as to sandwich and connect the speaker systems 51 and 52 between the side plates 22 and 23, and can be mounted by bringing the mounting surface 21a into contact with a mounting surface to be mounted, which is a surface of the mounting wall WL.

First, the manner of mounting the speaker system support structure SK to the coupled speaker system 51 will be described in order of description, mainly with reference to fig. 8 to 11. Here, the mounting wall WL is a side wall.

When the coupled speaker system 51 in the first posture is mounted on the mounting wall WL through the bracket 2, the lowermost mounting hole 15d in the mounting hole group 15 of the upper speaker system 1 and the uppermost mounting hole 15a in the mounting hole group 15 of the lower speaker system 1 are used.

First, as shown in fig. 6, the coupling speaker system 51 is not fastened by screwing the engagement bolts BT1 in the middle of the left and right mounting holes 15d of the upper speaker system 1.

The bolts 43a and 43b of the coupling member 4 and the coupling bolt 44 are fastened at positions where the center axes CL1 of the two housings 11 are parallel to each other.

As described above, the bracket 2 is fastened and attached to the mounting wall WL by the anchor bolt 61 and the nut 62. The mounting posture is a posture in which the openings of the inner cut 31 and the outer cut 32 are vertically upward.

When the output direction of the sound of the coupled speaker system 51 is close to horizontal (when the central axis CL1 is close to horizontal), as shown in fig. 8 and 9, the engagement bolt BT1 is engaged with the inner cut portion 31 (also referred to as a first cut portion 31) of the bracket 2 on the side close to the base portion 21.

The opening of the inner cut 31 is vertically upward. Therefore, the coupled speaker system 51 is supported by the bracket 2 by the engagement of the engagement bolt BT1 with the innermost portion of the inner cut portion 31 and does not fall down.

If the coupled speaker system 51 supported by the stand 2 is manually turned around the engaging bolt BT1, one through hole can be selected from the three through holes 34a to 34c of the inner through hole group 34 and fixed by the bolt.

Therefore, the operator selects a through hole for connecting the speaker system 51 at a desired mounting angle from the through holes 34a to 34c, and screws and fixes the fixing bolt BT2 to the mounting hole portion 15a through the through hole.

This allows the connected speaker system 51 to be fixed to the bracket 2 at the mounting angles corresponding to the selected through holes 34a to 34c, respectively.

When the posture is determined and finally fixed, the left and right engagement bolts BT1 are also fastened with a predetermined torque.

Fig. 8 shows a first support method in which a fixing bolt BT2 is fastened and fixed to the mounting hole 15a of the lower speaker system 1 through the through hole 34 a. In this example, the angle α a formed by the center axis CL1 and the wall surface WL is 90 °.

Fig. 9 shows a second support system in which the speaker system 51 is connected so that the output direction of sound is directed slightly downward, and the fixing bolt BT2 is fastened and fixed to the mounting hole portion 15a of the lower speaker system 1 through the through hole 34 c. In this example, the angle α b formed by the center axis CL1 and the wall surface WL is 60 °.

Although not shown, the angle formed by the center axis CL1 and the wall surface WL when the fixing bolt BT2 is inserted through the through hole 34b is an intermediate angle (for example, 75 °) between the angle α a and the angle α b.

As is apparent from fig. 9, when the speaker system 51 is further oriented downward in a state where the engagement bolt BT1 is engaged with the inner cut portion 31, the rear portion of the housing 11 of the lower speaker system 1 may interfere with the anchor bolt 61 protruding from the mounting wall WL.

To avoid such interference, the bracket 2 includes an outer cut 32, and the outer cut 32 supports the coupled speaker system 51 at a position farther from the mounting wall WL than the inner cut 31.

As shown in fig. 10, the engagement bolt BT1 screwed in the middle of the mounting hole 15d is engaged with the outer cut portion 32 (also referred to as a second cut portion 32).

The holder 2 is attached to the mounting wall WL in a posture in which the outer cut 32 opens vertically upward. Therefore, the engagement bolt BT1 is engaged with the outer cut portion 32 at the innermost portion, whereby the coupled speaker system 51 is supported by the bracket 2 and does not fall down.

When the coupled speaker system 51 supported by the stand 2 is manually rotated about the engaging bolt BT1, the mounting hole portion 15a of the lower speaker system 1 and the 5 through holes 35a to 35e of the outer through hole group 35 are matched according to the rotation angle.

Therefore, by selecting one of the through holes 35a to 35e and fixing it with the fixing bolt BT2, the connected speaker system 51 can be connected and supported to the bracket 2 in an angular posture corresponding to the selected through hole.

When the posture is determined and finally fixed, the left and right engagement bolts BT1 are also fastened with a predetermined torque.

Fig. 10 shows a third support system in which a fixing bolt BT2 is fastened and fixed to the mounting hole portion 15a of the lower speaker system 1 through the through hole 35 a. In this example, the angle α c formed by the center axis CL1 and the mounting wall WL is about 45 °.

Fig. 11 shows a support system in which the output direction of the sound from the speaker system 51 is set to be in a direction close to the vertical lower direction. That is, the fourth support system is to fasten and fix the fixing bolt BT2 to the mounting hole portion 15a of the lower speaker system 1 through the through hole 35 e. In this example, the angle α d formed by the center axis CL1 and the wall surface WL is about 30 °.

Next, a case where the coupled speaker system 52 in the second posture is attached to the mounting wall WL through the bracket 2 will be described mainly with reference to fig. 12 to 16. In this case, the second mounting hole 15c from below in the mounting hole group 15 of the upper speaker system 1 and the second mounting hole 15b from above in the mounting hole group 15 of the lower speaker system 1 are used for the coupling fixation.

First, as shown in fig. 12, the coupling speaker system 52 is not fastened by screwing the engagement bolts BT1 in the middle of the left and right mounting holes 15c of the upper speaker system 1.

The bolts 43a and 43b of the coupling member 4 and the coupling bolt 44 are fastened so that the center axes CL1 of the two housings 11 intersect obliquely, forming an angle 2 times the angle θ b.

As described above with reference to fig. 3, the angle θ b is, for example, the same as the angle θ a 1.

The axis of the coupled speaker system 52, which is the center of the output sound, is represented by a coupled center axis CLh for convenience, as shown in fig. 12. The coupling center axis CLh is an axis passing through the center between the center axes CL1 of the two speaker systems 1.

When the output direction of the sound output from the connecting speaker system 52 is close to horizontal (when the connecting center axis CLh is close to horizontal), as shown in fig. 13 and 14, the engaging bolt BT1 is engaged with the inner cut portion 31 (first cut portion 31) of the holder 2 on the side close to the base portion 21.

The holder 2 is attached to the mounting wall WL in a posture in which the inside cut-in portion 31 is opened vertically upward. Therefore, the engagement bolt BT1 is engaged with the inner cut portion 31 at the innermost portion, whereby the coupled speaker system 52 is supported by the bracket 2 and does not fall down.

When the coupled speaker system 52 supported by the stand 2 is manually turned around the engagement bolt BT1, the mounting hole portion 15b of the lower speaker system 1 and the three through holes 34a to 34c of the inner through hole group 34 are matched in accordance with the turning angle. Therefore, by selecting one through hole from the three through holes 34a to 34c of the inner through hole group 34 and fixing it with the fixing bolt BT2, the coupled speaker system 52 can be coupled and supported to the bracket 2 in an angular orientation corresponding to the selection.

When the posture is determined and finally fixed, the left and right engagement bolts BT1 are also fastened with a predetermined torque.

Fig. 13 shows a fifth support system in which a fixing bolt BT2 is fastened and fixed to the mounting hole 15b of the lower speaker system 1 through the through hole 34 a. In this example, an angle α Aa formed by the coupling center axis CLh and the mounting wall WL is 90 °.

Fig. 14 shows a sixth support mode in which the speaker system 52 is connected so that the output direction of sound is slightly downward, and the fixing bolt BT2 is fastened and fixed to the mounting hole portion 15b of the lower speaker system 1 through the through hole 34 c. In this example, the angle α Ab connecting the central axis CLh and the mounting wall WL is 60 °.

Although not shown, the angle formed by the coupling center axis CLh and the mounting wall WL when the fixing bolt BT2 is inserted through the through hole 34b is an intermediate angle (for example, 75 °) between the angle α Aa and the angle α Ab.

As is apparent from fig. 14, when the speaker system 52 is further oriented downward in a state where the engagement bolt BT1 is engaged with the inner cut portion 31, the rear portion of the housing 11 of the lower speaker system 1 may interfere with the anchor bolt 61 protruding from the mounting wall WL.

To avoid this interference, similarly to the case of the connected speaker system 51, the connected speaker system 52 is supported by the outer cut 32, and the outer cut 32 is supported at a position farther from the inner cut 31.

As shown in fig. 15, the engagement bolt BT1 screwed in the middle of the mounting hole 15c is engaged with the outer cut portion 32 (second cut portion 32).

The holder 2 is attached to the mounting wall WL in a posture in which the outer cut 32 opens vertically upward. Therefore, the engagement bolt BT1 is engaged with the outer cut portion 32 at the innermost portion, whereby the coupled speaker system 52 is supported by the bracket 2 and does not fall down.

When the coupled speaker system 52 supported by the stand 2 is manually rotated about the engaging bolt BT1, the mounting hole portion 15b of the lower speaker system 1 and the five through holes 35a to 35e of the outer through hole group 35 are matched according to the rotation angle.

Therefore, one through hole is selected from the through holes 35a to 35e, and the bracket 2 is fastened and fixed together with the mounting hole portion 15b of the lower speaker system 1 by the fixing bolt BT 2. This allows the connected speaker system 52 to be connected and supported by the stand 2 in an angular orientation corresponding to the selection.

When the posture is determined and finally fixed, the left and right engagement bolts BT1 are also fastened with a predetermined torque.

Fig. 15 shows a seventh support system in which a fixing bolt BT2 is fastened and fixed to the mounting hole 15b of the lower speaker system 1 through the through hole 35 a. In this example, the angle α Ac formed by the coupling center axis CLh and the mounting wall WL is about 45 °.

Fig. 16 shows a support system in which the output direction of sound from the speaker system 52 is oriented substantially vertically downward. That is, the eighth support system is to fasten and fix the fixing bolt BT2 to the mounting hole portion 15b of the lower speaker system 1 through the through hole 35 e. In this example, the angle α Ad connecting the central axis CLh and the mounting wall WL is about 30 °.

In the first to eighth support systems, the angle formed by the vertical direction when the mounting wall WL is the ceiling wall, and the center axis CL1 and the connecting center axis CLh is 0 ° in the first support system (fig. 8) and the fifth support system (fig. 13). In addition, the angles β b to β d are set in the second to fourth supporting systems (fig. 9 to 11), and the angles β Ab to β Ad are set in the sixth to eighth supporting systems (fig. 14 to 16).

As described above, the stent 2 has the inner cut 31 and the outer cut 32. Therefore, the coupled speaker systems 51 and 52 can be supported at a plurality of positions close to the mounting wall WL and at positions distant from the mounting wall WL.

Thus, when the connected speaker systems 51 and 52 are mounted on the mounting wall WL via the bracket 2, if the angles of the center axis CL1 and the connection center axis CLh with respect to the mounting wall WL are increased, the case 11 does not interfere with the anchor bolts 61 and the posture adjustment cannot be performed.

Further, the connected speaker systems 51 and 52 having a large mass can be supported at a position as close to the mounting wall WL as possible within a range not interfering with the anchor bolts 61. Thereby, the moment applied to the coupling position of the bracket 2 and the mounting wall WL is suppressed, so that the degree of freedom in designing the mounting strength of the bracket 2 is improved.

As shown in fig. 8 to 16, when the mounting postures of the coupled speaker systems 51 and 52, that is, the angles of the center axis CL1 and the coupling center axis CLh with respect to the mounting wall WL are adjusted, the fixing bolt BT2 needs to be removed, but the engaging bolt BT1 does not need to be removed and only needs to be loosened.

In addition, when this adjustment is performed, the self weight of the coupled speaker systems 51 and 52 is supported by the bracket 2 by the engagement of the engagement bolt BT1 with the inner cut portion 31 or the outer cut portion 32.

Therefore, the operator does not need to support the weight of the coupled speaker systems 51 and 52, the load on the operator during the adjustment operation is small, and the installation operability of the coupled speaker systems 51 and 52 is good.

Next, a mode of supporting and coupling the speaker systems 51 and 52 by using the slit portion 33 of the bracket 2 will be described.

Fig. 17 shows an example in which the base 21 of the stand 2 is mounted on a support plate 71 of a so-called PA speaker stand 7 and the joint speaker system 51 is mounted on the PA speaker stand 7 via the stand 2.

In fig. 17, the slit portion 33 of the holder 2 is opened upward and cut downward. Therefore, the engagement bolt BT1 is inserted into and engaged with the vertical cut portion 33, whereby the self weight of the coupled speaker system 51 is supported by the bracket 2.

Further, a distance L33 (fig. 5) from the center CL33 of the slit part 33 to the center of the through hole 34c of the inner through hole group 34 is made to coincide with a distance La (fig. 6) connecting the speaker system 51. The distance La is a distance between the center of the mounting hole portion 15d in the speaker system 1 on the upper side and the center of the mounting hole portion 15a in the speaker system 1 on the lower side.

Thus, as shown in fig. 17, the fastening bolt BT2 is fastened to the mounting hole portion 15a of the lower speaker system 1 through the through hole 34c, and the engaging bolt BT1 is also fastened, whereby the coupled speaker system 51 is firmly fixed to the bracket 2.

The position where the vertical cuts 33 are formed is set to a position offset to the left of the holder in the left-right direction in fig. 17. Since the center of gravity in the front-rear direction connecting the speaker systems 51 and 52 is located in front of the mounting hole group 15, the horizontal position of the center of gravity is less likely to be displaced outward from the support plate 71 of the PA speaker frame 7. Therefore, the coupled speaker systems 51 and 52 can be stably supported by the PA speaker mount 7.

The embodiment described in detail above is not limited to the above configuration, and may be a modified example modified within a range not departing from the gist of the present invention.

The cap 8 (fig. 19) that elastically engages with the mounting holes 15a to 15d to block the hole may be mounted in advance in an unused hole.

This will be described with reference to fig. 18 to 20.

Fig. 18 is a side view showing a state in which the cap 8 is attached to the unused mounting holes 15a, 15c, and 15d of the lower speaker system 1 of the coupled speaker system 52.

Fig. 19 is a sectional view at the position of S19-S19 in fig. 18.

Fig. 20 is a side view showing a state in which the cap 8 is attached to the unused mounting holes 15b, 15c, and 15d of the lower speaker system 1 of the coupled speaker system 51.

The speaker system 1 is a general-purpose article that can be used alone. Therefore, when used as the coupled speaker systems 51 and 52, there are mounting holes that are not used among the mounting holes 15a to 15d of the mounting hole group 15.

Specifically, the speaker system 1 on the upper side does not use the mounting holes 15a and 15 b. In the speaker system 1 on the lower side, at least the mounting holes 15c and 15d are not used.

Therefore, when selling as a kit (the kit includes the connected speaker systems 51 and 52 as a set), the speaker systems 1 may be determined in advance to be the upper and lower sides, and the caps 8 may be attached to the mounting holes that are not used at the time of shipment.

This eliminates the difference in the upper and lower positions of the speaker system 1 at the installation site, thereby improving the operation efficiency and the operation quality.

After determining whether the connected speaker system is set to the first posture or the second posture on site, as shown in fig. 18 and 20, the mounting hole 15a or the mounting hole 15b, which is not used in the respective postures, may be closed by the cap 8 in the lower speaker system 1 to perform the angle adjustment operation.

Accordingly, only one mounting hole portion capable of fastening a bolt is determined in accordance with the through holes 34a to 34c and 35a to 35e of the bracket 2, so that the operation efficiency is improved and the operation error is reduced.

The angles that the two speaker systems 1 make in the first posture and the second posture are not limited to the above-described examples.

The material of the holder 2 and the connecting member 4 is not limited. Such as stainless steel.

In the holder 2, when the inner cut 31 and the inner through hole group 34, and the outer cut 32 and the outer through hole group 35 are respectively set, the number of sets is not limited to two, and may be three or more.

In this case, the distance between the position of the notch and the mounting surface 21a of each group may be set differently for each group.

The cutting directions of the inner cut 31 and the outer cut 32 of the bracket 2 are set so that the speaker systems 51 and 52 can be supported and coupled by their own weights, regardless of whether the mounting wall WL is a ceiling surface or a side wall surface extending in the vertical direction.

That is, the inner cut 31 and the outer cut 32 are open at the upper edge 22a and cut in a direction away from the mounting surface 2a of the bracket 2.

The bracket 2 may be modified to a bracket 2A specialized as a side wall exclusive fixture for connecting the speaker systems 51 and 52.

Fig. 21 is a side view of the holder 2A, and is a view corresponding to fig. 5.

As shown in fig. 21, the stent 2A has an inner cut 31A and an outer cut 32A corresponding to the inner cut 31 and the outer cut 32 of the stent 2, respectively. The inner cut 31A and the outer cut 32A are open at the upper edge 22A and cut in a direction approaching the mounting surface 2A of the bracket 2A. The cutting direction may be a direction parallel to the mounting surface 2 a.

The bracket 2A is difficult to mount the coupled speaker systems 51 and 52 on the ceiling surface, but can be mounted with the side wall extending in the vertical direction as the bracket 2 as the mounting wall WL, and in this mounting, the degree of freedom in designing the mounting strength is improved, and the installation operability of the coupled speaker systems 51 and 52 is good.

Description of the symbols

1 speaker system

11 casing

111 side face

113 concave part

12 speaker grille

13 playing surface

14 connecting and mounting part

15 set of mounting holes

15 a-15 d mounting hole parts

15a 1-15 d1 female screw part

15a2 ~ 15d2 seat

2. 2A support

21 base part

21a mounting surface

211. 212 set of mounting holes

211a, 212a through hole

22. 23 side plate

22a upper edge part

22b front edge part

22c lower edge portion

3 mounting part

31. 31A inner side incision part (first incision part)

32. 32A outer side incision part (second incision part)

33 longitudinal cutting in (third cutting in)

34 inner through hole group (first through hole group)

34 a-34 c through hole

35 outer through hole group (second through hole group)

35a to 35e through hole

4 connecting member

41 connecting plate

42 nut plate

43a, 43b bolt

44 connecting bolt

51. 52 connected loudspeaker system

61 Foundation bolt

62 nut

7 loudspeaker seat frame

71 support plate

8 cap

9 with nut plate

91 nut

91a internal thread

BT1 fastening bolt

BT2 fixing bolt

CL1 center shaft

CLh connecting central shaft

Center of CL31, CL32 and CL33

Distance La and Lb

LN1, LN31, LN32 circular arcs

Radius R31, R32

SK speaker system support structure

SP speaker unit

WL installation wall

Theta a, theta a1 and theta b

Alpha a to alpha d, alpha Aa to alpha Ad, beta b to beta d, beta Ab to beta Ad.

Claims (8)

1. A loudspeaker system support comprising:

a flat plate-shaped base portion having a mounting surface mounted to a mounted surface; and

a pair of side plates formed to extend from the base portion to one side of the base portion so as to face each other,

the side plate has:

a first cut-in portion formed by cutting from an outer edge at a position away from the mounting surface by a first distance;

a second cut-in portion formed by cutting-in from an outer edge at a position away from the mounting surface by a second distance, the second distance being different from the first distance;

a first through-hole group including a plurality of through-holes formed in a first arc centered on a predetermined position in the first cut-in portion; and

and a second through-hole group including a plurality of through-holes formed on a second arc centered on a predetermined position in the second cut-out portion.

2. A loudspeaker system support according to claim 1,

the first cut portion and the second cut portion are formed by cutting from the outer edge in a direction away from the mounting surface.

3. A loudspeaker system support according to claim 1 or 2,

the radius of the first circular arc is the same as the radius of the second circular arc.

4. A loudspeaker system support according to claim 1 or 2,

the side plate has a third cut portion that cuts from an outer edge in a direction extending downward when the side plate is in a posture extending upward with respect to the attachment surface.

5. A loudspeaker system support according to claim 3,

the side plate has a third cut portion that cuts from an outer edge in a direction extending downward when the side plate is in a posture extending upward with respect to the attachment surface.

6. A speaker system support structure comprising:

a first speaker system and a second speaker system having mounting holes to which bolts can be screwed in side surfaces of a housing; and

a support for the loudspeaker system is provided,

the speaker system support has:

a flat plate-shaped base portion having a mounting surface mounted to a mounted surface;

a pair of side plates formed to extend from the base portion to one side of the base portion so as to face each other; and

a cut-in portion and a plurality of through holes formed in the side plate,

the cut-in portion is engageable with a threaded portion of a bolt screwed into the mounting hole portion of the first speaker system,

the plurality of through holes are arranged on an arc centered on an axis of the screw portion engaged with the innermost side of the cut portion and can be fastened together with the mounting hole portion of the second speaker system,

the speaker system support structure allows the first speaker system and the second speaker system to be mounted with the angle thereof adjustable with respect to the mounting surface by engaging the cut-out portion with a threaded portion of a bolt screwed into the mounting hole portion of the first speaker system and fastening one selected from the plurality of through holes together with the mounting hole portion of the second speaker system.

7. A loudspeaker system support structure of claim 6,

a plurality of the cut-outs are provided at different distances from the mounting surface,

the plurality of through holes are provided in a set for each of the plurality of cut portions.

8. A loudspeaker system support structure according to claim 6 or 7,

the first speaker system and the second speaker system have a plurality of the mounting hole portions,

the angle formed by the first speaker system and the second speaker system can be adjusted by a combination of mounting hole portions selected from the plurality of mounting hole portions of the first speaker system, which are screwed with bolts engaged with the cut-in portions, and mounting hole portions selected from the plurality of mounting hole portions of the second speaker system, which are fastened together with the through hole.