JP2006013736A - Fitting device of speaker cabinet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting device of a speaker cabinet capable of efficiently fitting the speaker cabinet to a fitting member without giving adverse effects on the sound quality of a speaker. <P>SOLUTION: The fitting device of the speaker cabinet includes: a tightening member inserted to a prescribed through-hole penetrated through the speaker cabinet; an engagement section engaged with the tightening member; a clamp member including at least two fitting member pressing parts extended outwardly to a side face of the speaker cabinet; and a fastening member extended outwardly to the side face of the speaker cabinet. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for mounting a speaker cabinet to a predetermined mounting material.

In FIG. 1, a speaker cabinet 2 is an example of a conventional ceiling-embedded speaker that is attached and fixed to a ceiling board 30 (see, for example, Non-Patent Document 1). The cabinet 2 has a cylindrical shape with its front surface 2a and rear surface 2c closed, and its side surface has a curvature radius slightly smaller than the curvature radius of the two opposing flat portions 2b and the mounting hole 30b of the ceiling plate 30. It consists of two opposing curved surface portions 2c.
A desired speaker unit 4 is provided on the front surface 2a of the cabinet 2, and a flange portion 5 extending from the front surface 2a to the outside of the side surfaces 2b and 2c of the cabinet 2 is provided. At least two speaker / cabinet mounting devices 1 are provided at predetermined positions (for example, facing positions) of the side surface flat portion 2b of the cabinet 2 (only one mounting and fixing device 1 is shown in the figure). In addition, when the volume of the cabinet 2 is large or the weight of the speaker is heavy, three or more mounting and fixing devices 1 are provided.
The mounting and fixing device 1 is generally provided in the bolt 9 and the flange portion 5 and has a plate-like sandwiching having a hole 5a through which the bolt 9 passes, a through screw hole 8b into which the bolt 9 is screwed, and a ceiling plate pressing portion 8a. A member 8, a bolt support 3 provided at a predetermined position of the side flat portion 2 b of the cabinet 2 and having a hole 3 a through which the bolt 9 passes, and a front surface 2 a of the cabinet 2 from a predetermined position of the side flat portion 2 b of the cabinet 2. A rotation restricting portion 6 extending in the crossing direction and a nut 7 into which a bolt 9 is screwed are provided.

Before the prior art cabinet 2 is embedded in the mounting hole 30b of the ceiling plate 30, the clamping member 8 of the mounting and fixing device 1 is substantially parallel to the side flat portion 2b of the cabinet 2 as shown by the solid line in FIG. When the cabinet 2 is embedded in the mounting hole 30b of the ceiling plate 30, it does not become an obstacle.
After the cabinet 2 is embedded in the mounting hole 30b from the surface 30a side of the ceiling board 30, when the bolt 9 is rotated in the direction of arrow P in the figure, the holding member 8 is rotated in the direction of arrow P like the bolt 9. However, as shown by a two-dot chain line in FIG.
When the bolt 9 is continuously rotated in the direction of arrow P in the figure, the clamping member 8 descends in the direction toward the flange portion 5, and the clamping member 8 finally becomes the back surface 30c of the ceiling plate 30 at the ceiling plate pressing portion 8a. Abut. At this time, the flange portion 5 contacts the surface 30 a of the ceiling board 30. When the bolt 9 is further tightened to a desired extent, the ceiling plate 30 is sandwiched between the ceiling plate pressing portion 8 a and the flange portion 5, and the cabinet 2 is attached and fixed to the ceiling plate 30.
“Model 111CL-III Instruction Manual” issued by Bose Co., Ltd., October 1993, p. 1

  However, in the case of the mounting device 1, the side flat portion 2 b needs to be provided on the side surface of the cabinet 2 in order to secure a space for arranging the mounting and fixing device 1 including the clamping member 8 and the like on the side surface of the cabinet 2. Therefore, there is a problem that the internal volume of the cabinet 2 is lost, which adversely affects the sound quality of the speaker (particularly, the sound quality of the low frequency range). In another conventional example (not shown), the cabinet itself has a substantially cylindrical shape, but a groove portion for housing the mounting and fixing device 1 is provided on the side surface, and in any case, the internal volume of the cabinet 2 Will lose.

Further, in the case of the mounting device 1, since it is necessary to tighten two or more bolts 9 for each speaker during the mounting and fixing operation of the speaker, there is a problem that man-hours are large and work efficiency is remarkably deteriorated. Furthermore, since a plurality of (for example, four, six, etc.) speakers are usually embedded in the ceiling of one room, it is necessary to tighten a large number of bolts 9 in one work process. Accordingly, it is necessary to charge a rechargeable electric screwdriver (not shown) for tightening the bolt 9 many times in one work process, and the work efficiency is remarkably poor from this point.
It is an object of the present invention to provide a speaker cabinet mounting device that does not adversely affect the sound quality of a speaker at the expense of the volume of the speaker cabinet, and can efficiently mount the speaker cabinet to a mounting material. There is to do.

In order to achieve the above object, a speaker cabinet mounting apparatus according to the present invention includes a through hole penetrating the speaker cabinet in a direction crossing the mounting material, and a 1 inserted into the through hole. A clamping member having one fastening member, one engaging portion that engages with the fastening member, and at least two attachment member pressing portions that extend outward from the side surface of the speaker cabinet; A fastening member extending outwardly of the side surface, by clamping the fastening member engaged with the engaging portion, and sandwiching the plate member between the clamping member and the fastening member, A speaker cabinet is attached and fixed to the attachment member.
Preferably, a telescopic tubular member having one end fixed to one opening end of the through hole of the speaker cabinet and the other end fixed to the engaging portion is provided, and the fastening member is the speaker cabinet. When the engagement portion is engaged with the through hole, the fastening member is guided.
Preferably, the tubular member has elasticity, and a tension is applied between the speaker cabinet and the clamping member.
Preferably, the fastening member is at least two or more protrusions spaced apart from each other in the circumferential direction.
Preferably, the fastening member is an annular protrusion extending outward from the side surface of the cabinet.
Preferably, at least one flexible member having one end fixed at a predetermined position of the speaker cabinet and the other end fixed at a predetermined position of the holding member, the flexible member including the holding member The distance between the speaker cabinet and the speaker cabinet is regulated.
Preferably, at least one attachment material pressing portion of the clamping member is rotatable about the engaging portion of the clamping member with respect to another attachment material pressing portion.

According to the speaker cabinet mounting device of the present invention, one predetermined through-hole penetrating the speaker cabinet, one fastening member inserted into the through-hole, and one engaging with the fastening member. Since the holding member includes an engaging portion and at least two attachment member pressing portions extending outward from the side surface of the speaker cabinet, and a fastening member extending outward from the side surface of the speaker cabinet, the following advantages are provided. Have.
(1) The clamping member, the retaining member, and the like do not sacrifice the internal volume of the speaker cabinet, and therefore have an advantage that the sound quality of the speaker (particularly, the sound quality of the low frequency range) is not adversely affected.
Further, when attaching the cabinet to the attachment material, it is only necessary to tighten one tightening member, so that there is an advantage that the work efficiency can be reduced and the work efficiency can be improved.
(2) Since the speaker / cabinet mounting device includes a predetermined telescopic tubular member, the tubular member guides the fastening member, and the fastening member can be easily engaged with the engaging portion of the clamping member. There is.
(3) Since the tubular member has elasticity, there is an advantage that the elastic tubular member can easily attach the cabinet to the attachment member by applying tension between the cabinet and the sandwiching member. Furthermore, there exists an advantage which can match | combine easily the axis line of a through-hole, and the axis line of an engaging part by the effect | action of the said tension | tensile_strength.
(4) Since the fastening member is at least two or more predetermined protrusions, the structure is simple, and there is an advantage that the manufacturing cost can be reduced.
(5) Since the fastening member is a predetermined annular protrusion, the structure is simple, and there is an advantage that the manufacturing cost can be reduced.
(6) Since the speaker cabinet mounting apparatus includes at least one predetermined flexible member, the flexible member has an advantage that the distance between the holding member and the speaker cabinet can be regulated.
(7) Since at least one attachment material pressing portion of the sandwiching member is rotatable about the engaging portion of the sandwiching member with respect to other attachment material pressing portions, the attachment material pressing portion is used as the predetermined attachment material. There is an advantage that it can be easily aligned with the contact position.

A mounting apparatus 10 which is an embodiment of a speaker cabinet mounting apparatus according to the present invention will be described with reference to FIGS.
In FIG. 2, the speaker cabinet 12 has a substantially cylindrical shape with a front surface 12a and a rear surface 12c closed, and a desired speaker unit 14 is provided on the front surface 12a. The speaker cabinet 12 extends in a direction intersecting (for example, substantially orthogonal) with respect to the front surface 12a (that is, the ceiling plate 30 as a mounting material) at a substantially center thereof, and a bolt 19 as a fastening member is inserted 1 Two through holes 12d are provided. Note that the cabinet 12 may be a cylindrical body having a polygonal cross section or a solid having another shape. Further, the through position of the through hole 12d may not be the approximate center of the cabinet 12.

  In FIG. 3, the four fastening members 15 are arranged at positions separated from each other in the cabinet 12 in the circumferential direction (for example, the circumferentially divided four positions are not necessarily equal positions). . The fastening member 15 includes a screw fastening portion 15a, a leg portion 15b extending perpendicular to the screw fastening portion 15a on the outer side of the side surface 12b of the cabinet 12, and an outer side of the side surface 12b of the cabinet 12 from the leg portion 15b. And is screwed to the rear surface 12c of the cabinet 12 by a screw 13 at the screwing portion 15a. In addition, the fastening member 15 should just be 2 or more, and other structures, such as an annular protrusion (for example, although it is a flange, although not shown) extended outside the side surface 12b of the cabinet 12, attachment position , And a mounting method.

The clamping member 18 generally includes one nut 16 as an engaging portion that engages (screws) with the bolt 19, and three attachment member pressing portions 17 fixed to the nut 16. The attachment material pressing portion 17 is a direction that intersects (for example, orthogonally) the axial direction of the through-hole 12d of the cabinet 12 from the nut 16 and is separated from each other in the circumferential direction (for example, the circumferential direction is divided into three equal parts The arm portion 17a extends in the direction of equal division, and from the arm portion 17a toward the front surface 12a outside the side surface 12b of the cabinet 12 (ie, toward the ceiling plate 30). It has the leg part 17b extended and the contact part 17c extended to the outward of the side surface 12b of the cabinet 12 from the leg part 17b. The tightening member and the engaging portion may be engaged with each other and can be tightened in an adjustable manner, and may have other configurations other than the bolt 19 and the nut 16.
Note that the number of the attachment material pressing portions 17 may be two or more, and the leg portions 17b and the contact portions 17c may not be provided as long as the configuration extends to the outside of the side surface 12b of the cabinet 12. In the case, for example, it can be attached to the ceiling board 30 thicker than the thickness of the cabinet 12). Furthermore, the at least one attachment material pressing portion 17 may be rotatable around the bolt 16 with respect to the other attachment material pressing portion 17.

One end of the coil spring 20 as an elastic and stretchable tubular member having elasticity is fixed to the peripheral edge of the rear surface side opening end of the through hole 12d of the cabinet 12 by a clamp 21 described later, and the other end is a screw of a nut 16 described later. Fixed to the periphery of the hole. When the bolt 19 penetrating the through hole 12 d is further advanced and screwed into the nut 16, the bolt 19 passes through the hole 20 a of the coil spring 20. Thereby, the coil spring 20 can guide the progress of the nut 16. The coil spring 20 is shaped so that the diameter of one end on the through hole 12d side is increased and the diameter is gradually reduced in the direction of the other end on the nut 16 side, and the bolt 19 is inserted into the hole 20a of the coil spring 20. It may be easy. Further, the stretchable tubular member having elasticity may be a rubber tubular member (not shown). Furthermore, the tubular member only needs to be stretchable and does not necessarily have elasticity. For example, a tubular member (not shown) having a bellows structure may be used.
One end of each of the wires 23 as the two flexible members is fixed to the cabinet by screws 23, and the other end is fixed to the attachment member pressing portion 17 of the holding member 18, so that the holding member 17 and the cabinet 12 are separated from each other. Regulate distance. This prevents the coil spring 20 from extending more than necessary and becoming unrecoverable. Further, when the bolt 19 screwed into the nut 16 is tightened, the wire 23 restricts the clamping member 18 (16, 17) from rotating in conjunction with the rotation of the bolt 19.
Note that the number of the wires 23 may be one, three, or more.

  In FIG. 4, the clamp 21 is generally a plate-like member provided with a screw hole (not shown), a long hole 21 a, and a notch 21 b, and is used to fix the coil spring 20 to the cabinet 12. . The clamp 21 is rotatable around a screw 22 inserted into the screw hole. At this time, the elongated hole 21a guides another screw 22 and the length of the elongated hole 21a changes the rotational distance. Limited. The notch 21b is a notch having a width larger than the outer diameter of the bolt 19 and smaller than the inner diameter of the coil spring 20, and its end is semicircular.

5 and 6, the ring-shaped protrusion 12e protrudes from the peripheral edge of the through hole 12d in the rear surface 12c of the cabinet 12, and an annular groove 12f is provided on the outer periphery thereof. The linear groove portion 12g extends outward in the radial direction of the annular groove portion 12f. The screw hole 12 h is for the screw 22.
The coil spring 20 has a linear end portion 20b extending radially outward from the terminal end of the coil 20a on the cabinet 12 side. After at least a part of one coil 20a is accommodated in the annular groove 12f and the linear end 20b is accommodated in the linear groove 12g, the bolt 19 is passed through the notch 21b, and the clamp 21 is secured by the screw 22 to the cabinet. 12 is fixed. When the clamp 21 is rotated in the direction of arrow A in FIG. 4, the width of the notch 21b is smaller than the inner diameter of the coil spring 20, so that the coil spring 20 has at least a part of one coil 20a and the linear end portion 20b as a cabinet. 12 and clamp 21 to be fixed to cabinet 12.

  On the other hand, when removing the coil spring 20 from the cabinet 12, the clamp 21 may be rotated in the direction of arrow B in FIG. Of course, a plurality of coils 20 a may be sandwiched between the cabinet 12 and the clamp 21. Further, the method of fixing the coil spring 20 to the cabinet 12 may be other methods such as a method of crimping the coil spring 20 (not shown) or a method of soldering (not shown).

  The structure for fixing the coil spring 20 to the holding member 18 is substantially the same as the structure for fixing the coil spring 20 to the cabinet 12. That is, a protrusion (not shown) corresponding to the ring-shaped protrusion 12e is provided on the peripheral edge (not shown) of the opening end of the screw hole of the nut 16 on the cabinet 12 side, and the annular groove 12f and the linear shape are provided. A structure (not shown) corresponding to the groove 12 is provided at a predetermined position. The clamp 25 shown in FIG. 7 corresponds to the clamp 21 and is roughly divided into three circumferentially divided directions (this direction corresponds to the extending direction of the attachment member pressing portion 17 of the holding member 18). It consists of a plate-like member 25a and has a screw hole 25c and a notch 25b corresponding to the notch 21b of the clamp 21. Similar to the above-described fixing method, when the clamp 25 is fixed at a predetermined position of the portion of the clamping member 18 facing the cabinet 12, the end of the coil spring 20 on the clamping member 18 side is sandwiched between the clamping member 18 and the clamp 25. Thus, the coil spring 20 is fixed to the clamping member 18.

Next, a method of attaching the cabinet 12 to the ceiling board 30 as an attachment material using the speaker cabinet attachment device 10 according to the present invention will be described with reference to FIGS.
In FIG. 8, the ceiling board 30 is provided with a predetermined mounting hole 30b. Of the three attachment member pressing portions 17, two attachment member pressing portions 17 (indicated by reference numerals “17-1” and “17-2” in the figure) are attached from the surface 30a side of the ceiling board 30 to the attachment holes 30b. The two contact portions 17c-1 and 17c-2 are brought into contact with the back surface 30c of the ceiling board 30.

  Subsequently, as shown in FIG. 9, the contact portion 17 c-3 of the remaining attachment material pressing portion 17-3 is similarly brought into contact with the back surface 30 c of the ceiling plate 30, and then the cabinet 12 is attached to the attachment hole 30 b. Embed in At this time, since the coil spring 20 applies tension between the cabinet 12 and the clamping member 18 (16, 17), the cabinet 12 can be easily embedded in the mounting hole 30b. Furthermore, the axis of the through hole 12d and the axis of the nut 16 can be easily aligned by the action of the tension.

10 and 11, after the cabinet 12 is embedded in the mounting hole 30b, the bolt 19 inserted into the through hole 19a of the cabinet 12 is screwed into the nut 17 and tightened. Here, since the bolt 19 passes through the hole 20 a of the coil spring 20, the coil spring 20 guides the progress of the bolt 19.
Then, as shown in FIG. 11, in the speaker / cabinet mounting apparatus 10, the abutting portion 17c of the holding member 18 and the protrusion 15c of the fastening member 15 hold the ceiling plate 30 between them, and the speaker / cabinet 12 is And fixed to the ceiling plate 30. Note that, after the cabinet 12 is attached, a desired cover 24 may be appropriately attached to the cabinet 12 so as to cover the front surface 12a.

In addition, by making at least one attachment material pressing portion 17 rotatable about the bolt 16 with respect to the other attachment material pressing portions 17, the attachment material pressing portion 17 can be moved from the surface 30a side of the ceiling plate 30. The attachment hole 30b can be easily passed, and the attachment member pressing portion 17 can be easily aligned with a predetermined contact position of the back surface 30c of the ceiling board 30.
The speaker cabinet 12 may be attached not to the attachment hole 30b but to a notch (not shown) provided at the end of the ceiling plate 30 facing the horizontal wall plate. Further, the mounting material to which the cabinet 12 is attached may be a horizontal wall plate (not shown) of the room, or may be a material having a predetermined thickness even if it is not a plate material.

It is a perspective view of the speaker cabinet provided with the conventional speaker cabinet attachment apparatus, and an attachment material. (Conventional technology) It is a perspective view of the front side of the speaker cabinet provided with this apparatus for demonstrating one Example of the attachment apparatus of the speaker cabinet which concerns on this invention. (Example 1) It is a perspective view of the rear surface side of the said speaker cabinet. (Example 1) It is a fragmentary perspective view of the rear surface side of the said speaker cabinet. (Example 1) It is a fragmentary top view of the rear surface side of the said speaker cabinet. (Example 1) It is a fragmentary sectional view of the said speaker cabinet. (Example 1) It is a top view of a clamp. (Example 1) It is a perspective view of the said speaker cabinet and an attachment material. (Example 1) It is a perspective view of the said speaker cabinet and an attachment material. (Example 1) It is a perspective view of the said speaker cabinet and an attachment material. (Example 1) It is sectional drawing of the said speaker cabinet and attachment material in alignment with the XX line in FIG. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conventional speaker cabinet mounting device 2,12 Speaker cabinet 10 Speaker cabinet mounting device 15 of the present invention 15 Fastening member 16 Nut 17 Mounting material pressing portion 19 Bolt 20 Coil spring 21, 25 Clamp 30 Ceiling plate

Claims (7)

In a device for mounting and fixing a speaker cabinet to a predetermined mounting material,
One through-hole penetrating the speaker cabinet in a direction crossing the mounting material;
One fastening member inserted into the through hole;
A holding member having one engaging portion that engages with the fastening member, and at least two attachment member pressing portions that extend outward from the side surface of the speaker cabinet;
A fastening member extending outward of the side surface of the speaker cabinet,
A speaker for attaching and fixing a speaker cabinet to the attachment member by fastening the fastening member engaged with the engagement portion and sandwiching the plate member between the clamping member and the fastening member. Cabinet mounting device. The apparatus for mounting a speaker cabinet according to claim 1,
A telescopic tubular member having one end fixed to one open end of the through hole of the speaker cabinet and the other end fixed to the engaging portion; and the fastening member as a through hole of the speaker cabinet An attachment device for a speaker cabinet for guiding the tightening member when engaging with the engaging portion through the speaker. The apparatus for mounting a speaker cabinet according to claim 2,
The apparatus for mounting a speaker cabinet, wherein the tubular member has elasticity and exerts a tension between the speaker cabinet and the holding member. The apparatus for mounting a speaker cabinet according to any one of claims 1 to 3,
The attachment device for a speaker cabinet, wherein the fastening member is at least two protrusions spaced circumferentially from each other. The apparatus for mounting a speaker cabinet according to any one of claims 1 to 4,
The attachment device for a speaker cabinet, wherein the fastening member is an annular protrusion extending outward from a side surface of the cabinet. The apparatus for mounting a speaker cabinet according to any one of claims 1 to 5,
At least one flexible member having one end fixed at a predetermined position of the speaker cabinet and the other end fixed at a predetermined position of the holding member, the flexible member including the holding member and the speaker A speaker cabinet mounting device that regulates the distance from the cabinet. The apparatus for mounting a speaker cabinet according to any one of claims 1 to 6,
An attachment device for a speaker cabinet, wherein at least one attachment member pressing portion of the sandwiching member is rotatable with respect to another attachment member pressing portion around an engagement portion of the sandwiching member.

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