JPH0742289U - Speaker mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] For a small speaker mounted on a vehicle, a male screw for mounting the speaker can be easily attached to the speaker body, and the speaker body can be securely attached using the male screw. To [Structure] The male screw 40 is inserted into the screw insertion hole 30a of the support plate 30.
The shaft 40b is inserted, and the fitting piece 30e of the support plate 30 is rotationally fitted into the rotational fitting groove 22a of the speaker body 20. At this time, the small protrusion 53d provided on the bottom portion 53 of the bracket 50 is locked in the engagement hole 30f of the support plate 30, and the bracket 50 is held by hand to support the support plate 30 on the speaker body 2.
Attach to 0. After that, the bracket 50 is reversed, the speaker body 20 is inserted into the tubular portion 51 of the bracket 50, and the shaft portion 40b protruding from the bracket 50 is tightened from the back surface side of the attached portion such as the door lining.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker mounting device such as a tweeter that is mounted later on a lining of an automobile door, and more particularly to a speaker mounting device that can easily and surely fix a speaker body.

[0002]

[Prior art]

 FIG. 5 shows a speaker such as a vehicle-mounted tweeter. The speaker main body 1 has a tubular case 2 in which components such as a voice coil, a magnet, and a yoke are housed, and a tubular cover 3 is attached to the surface of the tubular case 2. The speaker body 1 is attached by post-installation to a portion to be attached 4 such as a lining of a door of an automobile after completion. As the simplest attachment means of the speaker body 1, there is a method of adhering it to the attachment portion 4 with a double-sided adhesive tape. However, if the speaker main body 1 is simply adhered, the speaker main body 1 is easily detached from the attachment portion 4, and after the attachment, the double-sided adhesive tape remains on the surface of the attachment portion 4, impairing the appearance of the interior of the automobile. .

In order to firmly attach the speaker body 1, it is preferable to use a screw tightening means. As one of the methods, it is conceivable to insert a wood screw into the speaker main body 1 and screw the wood screw to the mounting portion 4. However, in the speaker body 1 such as a small tweeter shown in FIG. 5, since the components are collected and housed inside the cylindrical case 2, a place where wood screws are inserted into the speaker body 1 from the surface direction (direction A). I don't. It is also conceivable that an ear-shaped mounting piece is integrally formed on the outer peripheral portion of the cylindrical case 2 and a wood screw is inserted from the direction A into a mounting hole formed in the mounting piece to tighten the mounting piece. Since the mounting piece projects from the cylindrical case 1, it is not preferable as a speaker design. Also, since the head of the wood screw is visible, the appearance of the interior of the car will be impaired.

[0004]

[Problems to be solved by the device]

 Therefore, as the most preferable mounting structure, as shown in FIG. 5, the screw shaft 5 is projected from the back surface 1a of the speaker body 1, and the nut 6 or the like is screwed to the screw shaft 5 from the rear surface side of the mounted portion 4. Then, it is conceivable that the speaker body 1 is pulled in the F direction by the tightening force and fixed to the surface of the mounted portion 4. In this case, the tip 5a of the screw shaft 5 must be embedded in the cylindrical case 2 by a predetermined dimension D. However, the recent speaker body tends to be miniaturized, and since the components are housed up to the back surface 1a, there is no space to embed the tip 5a of the screw shaft 5 by the dimension D that provides sufficient fixing strength.

Further, when the screw shaft 5 is embedded and fixed by welding or the like, only a mounting structure using this screw shaft 5 can be adopted, and for example, there is no space for disposing the nut 6 on the back side of the mounted portion 4. In such a case, the speaker body 1 cannot be attached. Furthermore, it is conceivable to provide a cover with a female screw formed on the back surface 1a of the speaker body 1 and screw the tip 5a of the screw shaft 5 into this female screw. Is difficult to secure, and there is a risk of damaging internal parts due to excessive screwing.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a speaker mounting device capable of securely and easily mounting the screw shaft on the back surface of the speaker body.

[0007]

[Means for Solving the Problems]

 The speaker mounting device according to the present invention comprises a speaker body in which parts are housed in a cylindrical case, a support plate pivotally fitted to the back surface of the speaker body, and a head part housed in the speaker body. Has a male screw projecting from the support plate, and a tightening member that is screwed onto the shaft portion of the male screw from the rear surface side of the mounted portion to pull in and fix the speaker body with respect to the mounted portion. Is.

Further, in the above, a bracket interposed between the speaker body and the mounted portion is provided, and the support plate is pivotally fitted to the speaker by pivoting the bracket between the bracket and the support plate. It is also possible to provide an engaging portion for.

[0009]

[Action]

 In the above means, the support plate is pivotally fitted on the back surface of the speaker body, and the shaft portion of the male screw is projected from this support plate, thereby forming the minimum space for accommodating only the head portion of the male screw in the speaker body. The male screw can be attached with sufficient strength just by doing so. Therefore, it is not necessary to screw the male screw into the speaker body or fix it by welding or the like. When mounting the speaker body, a tightening member is provided on the back side of the mounted part, and the shaft of the male screw is pulled in by this tightening member. As a result, the supporting plate is fixed to the surface of the mounting portion by the head of the male screw, and the speaker body integrated with the supporting plate is also fixed. The male screw can be removed by removing the support plate from the speaker body. Since the male screw is removable, it is possible to adopt another mounting structure, for example, by fixing this support plate to the mounted part with wood screws and rotatingly fitting the speaker body to this support plate. Become.

Further, if an engaging portion is provided between the bracket and the support plate, when the support plate is rotationally fitted to the speaker body, the bracket is held by hand and supported by the rotating force of the bracket. The plates can be fitted. This allows the support plate to be easily and reliably attached to the speaker body even if the rotary plate and the speaker body have a tight fitting structure with no fitting clearance. The plate can be made so that it does not rattle against the speaker body. In addition, by interposing this bracket between the speaker body and the part to be mounted, it will have a good design appearance, and the bracket will have a concave shape. By embedding the structure in which the speaker body is embedded, it is possible to set the speaker body in a mounted state in which the speaker body does not largely protrude from the surface of the mounted part.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a sectional view showing a speaker mounting device according to the present invention, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a perspective view showing an operation of mounting a support plate on a speaker body. 2 and 3 show the appearance of the speaker body 20, and FIG. 1 shows a cross section of the speaker body 20. The speaker main body 20 has a resin-made cylindrical case 21 in which a resin-made base 22 is housed. The base 22 holds the yokes 23 a and 23 b and the magnet 24. An escape hole 22b having a minimum volume is formed in the center of the rear end of the base 22 to allow the head 40a of the male screw 40 to escape. A dome-shaped diaphragm 25 is supported in front of the base 22, and a voice coil 26 integrally provided at the hem of the diaphragm 25 is inserted into the gap between the yokes 23a and 23b. . A dome-shaped mesh cover 27 is installed at the front opening of the cylindrical case 21. A pair of rotary fitting grooves 22a, 22a are formed on the outer peripheral surface of the back end of the base 22.

As shown in FIG. 3, a support plate 30 is mounted on the back surface of the speaker body 20. The support plate 30 is formed of a sheet metal material into a disc shape. As shown in FIG. 1, the outer diameter dimension d1 of the support plate 30 is slightly smaller than the outer diameter dimension d2 of the rear end of the cylindrical case 21 of the speaker body 20. A screw insertion hole 30a is formed at the center of the support plate 30, and a wiring window 30b is opened above the drawing in the figure. A claw 30c is formed by bending from the edge of the wiring window 30b toward the back surface. Notch portions 30d and 30d are formed on the left and right sides of the support plate 30 in the drawing, and fitting pieces 30e and 30e are formed by bending the edge portions thereof toward the surface. The fitting pieces 30e, 30e are L-shaped pieces that stand up from the support plate 30 and have their tips facing toward the center. Further, the support plate 30 is provided with four engagement holes 30f, 30f, ... Of small diameter.

Reference numeral 50 is a bracket. The bracket 50 is made of resin. As shown in FIG. 1, the inside of the tubular portion 51 of the bracket 50 is a recessed space in which the speaker body 20 can be stored. A flange 52 extending along the outer circumference is integrally formed at the opening side edge of the tubular portion 51. The bottom portion 53 of the bracket 50 has a screw escape hole 53a formed in the center thereof. A pair of wiring windows 53b, 53b are formed at positions sandwiching the screw escape hole 53a. The claws 30c of the support plate 30 are fitted to the edges of the wiring windows 53b, 53b on the center side. Locking grooves 53c, 53c are formed. Further, on the outer surface of the bottom portion 53, four small protrusions 53d, 53d, ... As shown in FIG. 3, the small projections 53d are formed at positions where they can be fitted into the respective engagement holes 30f of the support plate 30.

As parts for attaching the speaker body 20 and the bracket 50, the male screw 40 in which the head portion 40a and the shaft portion 40b are integrated, the nut 42 screwed to the shaft portion 40b of the male screw 40, and the washer. 43 and wing nut 44 are used. A leaf spring 41 is used to pull in the male screw 40 with an appropriate force. As shown in FIG. 2, a screw hole 41a is formed in the center of the leaf spring 41, and both ends are installation pieces 41b and 41b. The attached portion 15 is a door panel or the like in a vehicle, and its structure is such that a cushion material 17 is installed on the surface of a hard board 16 and a sheet material 18 such as leather vinyl is attached to the surface thereof.

Next, a mounting operation of the speaker main body 20 using the bracket 50 will be described. In this mounting structure, as shown in FIG. 2, a slightly large-diameter mounting hole 15c is formed in the mounted portion 15 so that the outer periphery of the tubular portion 51 of the bracket 50 can be buried with almost no gap. As shown in FIG. 3, the shaft portion 40b of the male screw 40 is inserted into the screw insertion hole 30a at the center of the support plate 30, and the head portion 40a is attached to the surface of the support plate 30 on the side where the fitting piece 30e projects. Stop it. Then, the fitting piece 30e of the support plate 30 is rotationally fitted into the rotational fitting groove 22a formed in the base 22 in the speaker body 20. At this time, the bottom portion 53 of the bracket 50 is directed toward the support plate 30, and the four small protrusions 53 d provided on the bracket 50 are fitted and engaged in the respective engagement holes 30 f of the support plate 30. The claw 30c protruding from the support plate 30 is locked in either one of the locking grooves 53c, 53c of the bracket 50. Then, by holding the bracket 50 by hand and rotating it in the α direction, the fitting pieces 30e, 30e of the support plate 30 are fitted into the rotary fitting grooves 22a, 22a of the speaker body 20 by turning.

By using the bracket 50, the support plate 30 can be easily and reliably attached to the speaker body 20. As a fitting structure between the speaker main body 20 and the support plate 30, it is preferable that the fitting piece 30e is tightly fitted in the rotary fitting groove 22a without a gap, whereby the speaker main body 20 and the support plate 30 are fitted. It can be assembled without rattling. In the case of this close fitting, it becomes very difficult to directly hold the plate-shaped support plate 30 and install it on the back surface of the speaker body 20 to perform the rotary fitting. In particular, in this embodiment, since the outer diameter dimension d1 of the support plate 30 is smaller than the outer diameter dimension d2 on the back surface side of the speaker body 20, the support plate 30 cannot be held directly by hand. Therefore, as shown in FIG. 3, the support plate 30 can be easily attached by using the bracket 50 as a jig for rotational fitting. Further, unlike the case of using other tools such as pliers, there is no possibility of damaging the speaker body 20 or the support plate 30. By the above rotary fitting work, the support plate 30 is securely fixed to the back surface of the speaker body 20, and the head portion 40a of the male screw 40 is positioned in the escape hole 22b of the base 22 in the speaker body 20 having the minimum volume. However, the shaft portion 40b protrudes to the back surface side of the speaker body 20.

When the support plate 30 is attached to the speaker body 20, the cords 28 extending from the rear surface side of the speaker body 20 pass through the wiring window 30b of the support plate 30 and project in the same direction as the male screw 40. Let Further, when the support plate 30 is rotationally fitted to the speaker body 20 using the bracket 50, the shaft portion 40b of the male screw 40 is inserted into the screw escape hole 53a of the bracket 50, and the cords 28 are The bracket 50 is extended into the cylindrical portion 51 from either one of the wiring windows 53b and 53b. As shown in FIG. 3, the support plate 30 is provided with the wiring window 30b and the claw 30c at only one location, but at the bottom portion 53 of the bracket 50, the wiring window 53b and the locking groove 53c are shown in the upper and lower portions in the figure. A pair is formed at symmetrical positions. Therefore, in the work of rotationally fitting the support plate 30 to the speaker body 20, the bracket 50 can be used even in a direction rotated 180 degrees from the state of FIG.

In the work of attaching the speaker body 20 and the bracket 50 to the attachment portion 15, first, the bracket 50 is turned in the opposite direction to that of FIG. 3, and the speaker body 20 is placed in the recessed space of the tubular portion 51 of the bracket 50. To insert. At this time, the shaft portion 40b of the male screw 40 extending from the rear surface side of the speaker body 20 is inserted into the screw clearance hole 53a of the bracket 50 and extended to the outside of the bottom portion 53. Further, the cords 28 extending from the inside of the wiring window 30b of the support plate 30 are pulled out of the bottom portion 53 from the wiring window 53b of the bracket 50. In this state, the nut 42 is screwed onto the shaft portion 40b of the male screw 40, and the nut 42 is tightened at the bottom portion 53 of the bracket 50. As a result, the speaker body 20 and the bracket 50 are integrally assembled.

Next, the cylinder portion 51 of the bracket 50 assembled integrally with the speaker body 20 is inserted into the mounting hole 15c of the mounted portion 15 from the bottom portion 53 side, and the flange 52 is set on the surface of the mounted portion 15. To do. Next, the leaf spring 41 is applied to the back side of the attached portion 15, the shaft portion 40b of the male screw 40 is inserted into the screw hole 41a of the leaf spring 41, and the washer 43 and the wing nut 44 are screwed into the protruding shaft portion 40b. To do. As shown in FIG. 1, when the installation pieces 41b 1 and 41b at both ends of the leaf spring 41 are abutted against the back surface of the hard board 16 of the mounted portion 15 and the wing nut 44 is tightened, the elastic force of the leaf spring 41 causes the male screw 40 to move. Is pulled in, and the bracket 50 and the speaker main body 20 are fixed to the mounted portion 15.

In the mounting structure shown in FIG. 1, the speaker body 20 does not largely project to the front surface side of the mounted portion 15, and the net-like cover 27 slightly projects to the surface of the sheet material 18. The appearance in the crushed state becomes good. In addition, the driver's hands do not hit the speaker body, which is safe, and the speaker body 20 is not detached from the mounted portion 15 by an external force. Further, when attaching the speaker main body 20, the support plate 30, and the male screw 40 to the attached portion 15, it is not always necessary to use the bracket 50. For example, as shown in FIG. The speaker body 20 may be installed in a state of protruding from the front surface of the mounted portion 15, and the shaft portion 40b of the male screw 40 extending to the back surface of the mounted portion 15 may be tightened with a nut or the like.

Next, FIG. 4 shows another mounting structure of the speaker body 20 using the support plate 30. In this structure, a screw tightening hole 15a and a wiring hole 15b are formed in the mounted portion 15. Then, the wood screw 32 for mounting is inserted into the screw insertion hole 30a of the support plate 30, and the wood screw 32 is screwed into the screw tightening hole 15a. At this time, the claw 30c of the support plate 30 is engaged with the edge of the wiring hole 15b to stop the rotation. In this way, after the support plate 30 is first fixed to the mounted portion 15, the speaker body 20 is pressed in the Y direction against the edge surface of the support plate 30, and then rotated in the β direction. As a result, the rotary fitting grooves 22a, 22a of the speaker body 20 and the fitting pieces 30e, 30e of the support plate 30 are pivotally fitted. As described above, in the above-described embodiment, since the support plate 30 is detachably attached to the speaker body 20, the mounting structure using the male screw 40 is possible, and the male screw 40 is not used. The same support plate 30 can also be used to attach the wood screws 32.

[0022]

[Effect of device]

 According to the present invention as set forth in claim 1, since the support plate is pivotally fitted to the back surface of the speaker body so that the male screw can be supported by the support plate, the internal structure of the speaker body is small. The male screw can be attached without affecting the minimum required space for accommodating the male screw head. By pulling this male screw from the back side of the mounted part with the tightening member, the speaker body can be securely fixed to the mounted part. Further, since the support plate is attachable to and detachable from the speaker body, a mounting structure that does not use the above male screw is also possible.

According to the second aspect of the present invention, the support plate can be rotationally fitted to the speaker body by using the bracket. Therefore, the support plate can be easily and surely attached to the speaker body. Even if the rotation fitting part between the speaker body and the support plate has a tight fitting structure with no gap, the bracket can be used to easily attach the support plate to the speaker body. You can By using this tight fitting structure, it is possible to prevent rattling between the speaker body and the support plate in the assembled state. Furthermore, since the bracket is also used as a jig for mounting the support plate, no special jig is required during assembly work, and there is concern when the support plate is rotationally fitted using pliers. No damage or damage to the speaker body or support plate.

[Brief description of drawings]

1 is a sectional view showing a speaker mounting device according to the present invention;

FIG. 2 is an exploded perspective view showing a mounting state of a speaker body,

FIG. 3 is a perspective view showing the work of attaching the support plate to the speaker body;

FIG. 4 is a perspective view showing another mounting structure using a support plate,

FIG. 5 is a side view of a speaker mounting device for explaining a conventional problem,

[Explanation of symbols]

 15 Mounted Part 16 Hard Board 17 Cushion Material 18 Sheet Material 20 Speaker Body 21 Cylindrical Case 22 Base 22a Rotating Fitting Groove 22b Escape Hole 30 Support Plate 30a Screw Insertion Hole 30b Wiring Window 30c Claw 30e Fitting Piece 30f Engagement Hole 40 Male screw 40a Head portion 40b Shaft portion 41 Leaf spring 42 Nut 44 Wing nut 50 Bracket 51 Tube portion 52 Flange 53c Locking groove 53d Small protrusion

Claims (2)

[Scope of utility model registration request] 1. A speaker main body in which components are housed in a cylindrical case, a support plate pivotally fitted to the back surface of the speaker main body, a head is housed in the speaker main body, and a shaft portion is the support plate. A speaker mounting device, comprising: a male screw projecting from the mounting portion; and a tightening member that is screwed into the shaft portion of the male screw from the rear surface side of the mounting portion to pull in and fix the speaker body to the mounting portion. 2. A bracket provided between the speaker main body and the attached portion is provided, and the bracket and the support plate are engaged with each other to rotate and fit the support plate to the speaker. The speaker mounting device according to claim 1, wherein a portion is provided.