JPH0720792U - In-vehicle speaker mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To enable a small vehicle-mounted speaker to be securely fixed to a cushioned attachment part. [Structure] The outer diameter dimension d of the mounting member 30 is determined by the speaker body 2
The inner diameter dimension D1 of the rear end of the tubular case 21 is 0, and the rear end surface 21a of the tubular case 21 comes into contact with the edge surface of the mounting member 30. Therefore, when the mounting member 30 is screwed to the cushioned mounting portion 15, the bulge of the mounting portion does not give resistance to the rear end surface 21a of the cylindrical case 21, and the rotary fitting groove provided in the speaker body 20 is provided. 22a and the fitting piece 30e of the mounting member 30 can be reliably rotationally fitted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting device suitable for mounting a vehicle-mounted speaker such as a tweeter on an inner lining of a vehicle, and more particularly to a mounting device for a vehicle-mounted speaker that allows a small speaker to be easily mounted.

[0002]

[Prior art]

 FIG. 5 is a cross-sectional view showing a state where a conventional vehicle-mounted speaker (tweeter) is attached to a lining such as a door panel in a vehicle. In the speaker body 1, a dome-shaped mesh cover 3 is installed on the surface of a cylindrical case 2. A resin-made base 4 is provided on the bottom of the cylindrical case 2, and magnetic yokes 5a and 5b, a magnet 6, a dome-shaped diaphragm 7, and various components such as a voice coil 8 attached to the diaphragm 7 are provided on the base 4. Is stored. Further, on the inner side surface of the rear end of the cylindrical case 2, two rotary fitting grooves 2a, 2a are formed.

The speaker body 1 is fixed to the mounted portion 15 by a mounting member 10. As shown in FIG. 6, the mounting member 10 is usually made of sheet metal, and its outer edge portion is integrally provided with fitting pieces 10a, 10a that are bent outward and project. The mounting member 10 is provided with two screw insertion holes 10b, 10b, and a wiring window 10d continuous with the central hole 10c is cut out. In the mounting operation, first, the mounting member 10 is installed on the mounted portion 15, and is fixed by mounting screws inserted into the two screw insertion holes 10b, 10b. Next, the speaker body 1 is put on the mounting member 10 and pushed in the Y direction to insert the fitting pieces 10a, 10a into the inside of the cylindrical case 2, and the speaker body 1 is rotated to rotate the fitting groove 2a. , 2a are engaged with the fitting pieces 10a, 10a. At this time, the cord extending from the back side of the speaker body 1 passes through the wiring window 10d and is guided into the attached portion 15.

[0004]

[Problems to be solved by the device]

 The conventional mounting device for a vehicle-mounted speaker has the following problems. (1) The conventional mounting member 10 has a structure in which the outer diameter dimension d is smaller than the inner diameter dimension D of the tubular case 2, and the mounting member 10 enters the rear opening of the tubular case 2. Further, the fitting pieces 10a, 10a of the mounting member 10 are structured to project outward from the outer diameter dimension d. Therefore, when the attached portion 15 is a lining such as a door panel having a cushioning property, there is a problem that the work of fitting the speaker body 1 and the attaching member 10 becomes difficult.

That is, as shown in FIG. 7, in a lining such as a door panel, a cushion material 17 is provided on the surface of a hard board 16 and a sheet material 18 such as leather vinyl is provided on the surface thereof. In the case of the attached portion 15 having the cushioning property as described above, when the attaching member 10 is fixed to the hard board 16 with the screw, the cushion material 17 is compressed in the portion (a) below the attaching member 10. However, the cushion material 17 is not compressed at the portion indicated by (B) on the outer peripheral portion of the mounting member 10, and the sheet material 18 swells up to near the tip of the fitting piece 10a. Therefore, when the cylindrical case 2 of the speaker main body 1 is pushed in the Y direction, the cushion material 17 in a swelled state gives resistance and becomes an obstacle, so that it cannot be surely pushed in the Y direction. It also becomes difficult to rotate so that the fitting piece 10a cannot be reliably engaged with the rotary fitting groove 2a. In a small speaker device, since the speaker body 1 and the mounting member 10 have a small diameter and the height dimension h of the fitting piece 10a is small, it is more difficult to engage the fitting piece 10a with the rotary fitting groove 2a. become.

(2) Conventionally, the rotary fitting groove 2a is formed on the inner peripheral surface of the cylindrical case 2 of the speaker body 1. However, this type of in-vehicle speaker has been miniaturized, and when the cylindrical case 2 has a small diameter and a small thickness, the strength of the cylindrical case 2 is reduced by forming the rotary fitting groove 2a. The problem arises.

(3) Since the speaker body 1 and the mounting member 10 are rotationally fitted to each other, at the time of fixing the mounting member 10 to the mounted portion 15, at least two screw stoppers are provided to prevent rotation. is necessary. Therefore, in the attached portion 15, it is necessary to form two holes for screwing and a wiring hole for guiding the cord passing through the wiring window 10d to the inside of the hard board 16. When the mounting member 10 having a somewhat large diameter is used as shown in FIG. 6, the holes at the above-mentioned three places can be formed with sufficient intervals. However, when the speaker main body 1 and the mounting member 10 have small diameters, the above-mentioned three holes are too close to each other, which causes problems such as chipping of the hard board between the holes.

The present invention solves the above-mentioned conventional problems, and it is possible to reliably attach the speaker body to the attachment member even if the attached portion has a cushioning property. The first purpose is to make sure that the speaker body and the mounting member can be securely mounted even if the diameter thereof is small.

[0009]

[Means for Solving the Problems]

 An in-vehicle speaker mounting device according to the present invention comprises a speaker main body in which parts are housed in a cylindrical case, and a mounting member that is screwed to a mounted portion. The mounting case has an external dimension that can be touched by the rear end surface of the tubular case, and a fitting piece located inside the edge portion projects from this mounting member. Is fixed,

[0010] Further, a speaker main body in which components are housed inside a tubular case, and a mounting member that is screwed to a mounting portion and has a fitting portion with the speaker main body, wherein the mounting member includes: A screw insertion hole and a wiring window for passing a cord extending from the speaker body are formed, and a rotation stopping claw extending from the edge of the wiring window toward the attached portion is provided. is there.

[0011]

[Action]

 In the first means, when the mounting member is screwed to the cushioned mounting portion, the rear end surface of the cylindrical case of the speaker main body contacts the edge surface of the mounting member and is located inside the edge portion. The speaker body and the mounting member are fitted by the fitting piece located. Therefore, when the speaker body is pressed against the mounting member, the bulging portion of the mounted member at the outer peripheral portion of the mounting member does not interfere with this pressing. Therefore, the mounting work of the speaker body can be surely performed.

In the second means, the rotation stopping claw is provided at the edge of the wiring window formed in the mounting member. Since the rotation of the mounting member can be stopped by engaging this claw with the edge of the wiring hole opened in the mounting portion, it is only necessary to provide one screw insertion hole. Therefore, even if the speaker body and the mounting member are downsized, it is possible to open a certain distance between the holes in the mounting portion.

[0013]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a state where an on-vehicle speaker is mounted by a mounting device according to the present invention, FIG. 2 (A) is a plan view of the mounting member, FIG. 2 (B) is a side view of the mounting member, and FIG. FIG. 4 is an exploded perspective view showing a mounted state, and FIG. 4 is an enlarged sectional view showing a joint portion between the speaker body and the mounting member. FIG. 3 shows the appearance of the speaker body 20, and FIG. 1 shows a cross section of the speaker body 20. In the speaker body 20, a resin base 22 is housed in a resin cylindrical case 21, and the bases 22 hold the yokes 23 a and 23 b and the magnet 24. 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 in the gap between the yokes 23a and 23b. A dome-shaped mesh cover 27 is installed in the front opening of the cylindrical case 21.

In this embodiment, a pair of rotary fitting grooves 22a and 22a are formed around the rear end of the base 22, and an escape hole 22b for escaping the mounting screw 32 is formed in the center of the rear end of the base 22. Has been formed. As shown in FIG. 2, the mounting member 30 for mounting the speaker body 20 is formed into a disc shape from a sheet metal material. As shown in FIG. 1, the outer diameter dimension d of the mounting member 30 is larger than the inner diameter dimension D1 of the rear end of the cylindrical case 21 of the speaker body 20. The outer diameter dimension D2 of the rear end of the tubular case 21 is formed slightly larger than the outer diameter dimension d of the mounting member 30.

A screw insertion hole 30a is formed in the center of the mounting member 30, and a wiring window 30b is opened above the drawing in FIG. 2 (A). From the edge of the wiring window 30b, a claw 30c for stopping rotation is bent and formed in the rear surface direction. Notches 30d, 30d are formed on the left and right sides of the mounting member 30 in the drawing, and fitting pieces 30e, 30e are formed by bending from the edges thereof toward the surface. As shown in FIG. 2 (B), the fitting pieces 30e, 30e rise up on the inner diameter side with respect to the edge 30f of the mounting member 30, and the tip thereof is an L-shaped piece that faces toward the center. Has become. 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.

In the mounting operation of the speaker device, first, as shown in FIG. 3, the mounting portion 15 is provided with a screw tightening hole 15a and a wiring hole 15b. When mounting the mounting member 30, the mounting screw 32 is inserted into the screw insertion hole 30a of the mounting member 30 and screwed into the screw tightening hole 15a of the mounted portion 15. At this time, as shown in FIG. 2A, the rotation stopping claw 30c is engaged with the edge of the wiring hole 15b. Thereby, the rotation of the mounting member 30 mounted by the single mounting screw 32 is stopped. That is, the wiring hole 15b formed in the mounted portion 15 is formed at a predetermined interval with the screw tightening hole 15a so that the claw 30c engages with the lower end shown in FIG. 2 (A). Become. Since the claw 30c is engaged with the lower end of the wiring hole 15b shown in the drawing, a sufficient distance can be provided between the screw tightening hole 15a and the wiring hole 15b, and the hard board 16 can be mounted between both holes 15a and 15b. There is no lack.

When mounting the speaker body 20, the rear end surface 21a of the cylindrical case 21 is pressed in the Y direction against the edge surface 30f of the mounting member 30, and then rotated in the θ direction. As a result, the rotary fitting grooves 22a and 22a formed on the outer periphery of the base 22 in the speaker body 20 and the fitting pieces 30e and 30e of the mounting member 30 are rotationally fitted. The cords 28 extending from the rear end of the speaker main body 20 pass through the inside of the wiring window 30b of the mounting member 30, are drawn out from the wiring hole 15b to the back surface of the hard board 16, and are connected to a speaker not shown.

Since the outer diameter dimension d of the mounting member 30 is larger than the inner diameter dimension D1 of the cylindrical case 21, the rear end surface 21a of the cylindrical case 21 is attached to the mounting member 30 as shown in FIG. It can be abutted against the edge surface 30f of the. If the attached portion 15 has a cushioning property, the cushion material 17 contracts in the portion where the attachment member 30 is screwed, and the cushion material 17 is in the outer peripheral portion of the attachment member 30 shown in (c). Elastically recovers in the direction and swells. However, since this bulge is on the outside of the mounting member 30 and the rear end surface 21a of the tubular case 21 is abutted against the edge surface 30f of the mounting member 30, the bulge of the cushion material 17 is attached to the tubular case 21. Therefore, it does not act as a resistance against it, and therefore the work of pressing the speaker body 20 against the mounting member 30 and rotating it in the θ direction to fit the speaker body 20 can be reliably performed. Further, the mounting member 30 is fixed by one mounting screw 32, but since the claw 30c is engaged with the edge portion of the wiring hole 15b, the mounting member 30 is rotated when the speaker body 20 is rotated in the θ direction. It is possible to prevent the 30 from rotating together.

This embodiment is effective when the speaker body 20 and the mounting member 30 have a small diameter, and even if the overall size is small and the height h of the fitting piece 30e is low, the cylindrical case 21 can be securely attached without receiving the resistance of the cushion material 17. Further, since the rotary fitting groove 22a is formed on the outer periphery of the base 22, it is not necessary to provide the rotary fitting groove in the cylindrical case as in the conventional example shown in FIG. 5, and the cylindrical case 21 is made thin. The strength does not decrease significantly. In the illustrated embodiment, the outer diameter dimension d of the mounting member 30 is larger than the inner diameter dimension D1 of the cylindrical case 21 and smaller than the outer diameter dimension D2. It may be slightly larger than the outer diameter dimension D2 of the tubular case 21.

The screw insertion hole 30a formed in the mounting member 30 does not necessarily have to be formed at the center, and may be formed at a position away from the center of the mounting member 30 and away from the claw 30c. Further, in the above-described embodiment, the rotary fitting groove 22a of the speaker body 20 and the fitting piece 30e of the mounting member 30 are rotationally fitted, but for example, the fitting piece 30e can be elastically deformed. May be elastically fitted to the inner peripheral surface of the cylindrical case 21 of the speaker body or the outer peripheral surface of the base 22. Further, the wiring window 30b formed in the mounting member 30 may be a round hole or may be a notch that opens at the edge of the mounting member 30.

[0021]

[Effect of device]

 According to the first aspect of the present invention, even if the attached portion has a cushioning property, the speaker body can be securely fixed to the attachment member without being given a resistance of the bulge of the attached portion to the speaker body.

According to the second aspect of the present invention, the rotation of the mounting member is prevented even if the mounting member is fixed with a single mounting screw, because the claws at the edge of the wiring window formed on the mounting member prevent rotation. Can be prevented. Therefore, the number of holes and windows formed in the mounting member can be minimized, and the number of holes and windows formed in the mounted portion can be reduced, which is suitable for mounting a small speaker.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, showing a state in which a speaker body is attached to a mounting portion by a mounting member,

2A is a plan view of a mounting member, FIG. 2B is a side view thereof, FIG.

FIG. 3 is an exploded perspective view showing a speaker body, a mounting member, and a mounted portion,

FIG. 4 is a partially enlarged cross-sectional view showing a mounting state of an edge portion of a speaker body,

FIG. 5 is a cross-sectional view showing a conventional speaker mounting device,

FIG. 6 is a plan view of a conventional mounting member,

FIG. 7 is a partially enlarged cross-sectional view showing a mounting state of an edge portion of a conventional speaker body,

[Explanation of symbols]

 15 Attached Part 16 Hard Board 17 Cushion Material 18 Sheet Material 20 Speaker Body 21 Cylindrical Case 21a Rear End Surface of Cylindrical Case 22 Base 22a Rotation Fitting Groove 30 Mounting Member 30a Screw Insert Hole 30b Wiring Window 30c Rotation Stopper 30e Fitting piece 30f Edge surface 32 Mounting screw

Claims (2)

[Scope of utility model registration request] 1. A speaker main body in which components are housed inside a tubular case, and a mounting member that is screwed to a mounting portion, and the rear surface of the tubular case contacts the edge surface of the mounting member. An in-vehicle speaker having an outer dimension capable of being formed, and a fitting piece projecting inside the edge portion is provided so as to fix the speaker body and the mounting member by the fitting piece. Mounting device. 2. A speaker main body in which parts are housed inside a tubular case, and a mounting member fixed to a mounting portion by a screw and having a fitting portion with the speaker main body, wherein the mounting member includes a screw. An insertion hole and a wiring window for passing a cord extending from the speaker body are formed, and a rotation stopping claw extending from an edge portion of the wiring window toward a mounted portion is provided. Mounting device.