JPS5934794A - Fitting structure of on-vehicle speaker - Google Patents

Abstract

PURPOSE:To obtain a speaker fitting device without disturbing free vibration of a sound diaphragm, by pressing and holging the sound diaphragm made of hard foamed polyurethane between a car in terior member and a ridge frame. CONSTITUTION:Plural locking pawls 7 are projected downward at an inner circumference of an opening 5a of a ridge frame 5, the ridge frame 5 is inserted to the sound diaphragm 3 made of hard foamed polyurethane or the like and each locking pawl 7 is bit to the upper surface outer circumference of the sound diaphragm 3. Further, plural fitting rods 8 are projected toward the lower part at the inner circumferential wall of the ridge frame 5 and holes 9 for inserting the said rods 8 are opened at the opening ridge of a car interior member 1 correspondingly. After the sound diaphragm 3 mounting a driver unit 4 to its center rear surface with an adhesives 12 is fitted tentatively at the opening circumferential ridge of the car interior member 1, the diaphragm 3 is fixed on the car interior member 1 with the rods 8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a vehicle-mounted speaker (=1 structure, 'tri to 117-plane speaker).

The previously developed acoustic diaphragm made of rigid foamed polyurethane foam is lightweight, split bamboo, and has a moderate internal loss, so it can be combined with a driver unit to form a so-called flat speaker. This J-shaped flat speaker is ideal for use in passenger cars where installation space is limited. , the acoustic diaphragm that makes up the planar speaker is attached to one side between them.
If the driver unit is installed on the back side, there will be a small gap between each of the above-mentioned interior parts and the car body, and it will be possible to incorporate the 11 physical speakers. Utilizing parts as soundboards for the speakers
C-kill.

In order to incorporate this type of acoustic diaphragm into automobile interior materials, it is necessary to create a sound at the outer periphery of the opening 1'' edge of the interior material. It is possible to attach the bottom surface of the outer periphery of the diaphragm by gluing it, but this method provides sufficient adhesion strength.For example, the interior of an automatic cattle car is a laminated molded product of a hard board and a decorative skin. The skin for the F611 is for example the tt of Carbella 1~ etc.
A vjg T:: If it is swollen, the adhesive strength will be even weaker and it will become sluggish.

This 1. :For example, it is conceivable to use one step of fixing the C acoustic diaphragm by passing a bolt or the like through the periphery of the C acoustic diaphragm and tightening it to the inner MU side, but this J, Unadori I4
If you remove the RIM, bolts etc. will pass through the diaphragm, which will prevent free vibration, and the original function that determines the acoustic vibration pattern, that is, the acoustic characteristics. This causes loss of sound quality.

This invention has been developed in view of the above background, and its purpose is 1-; ``The diaphragm is securely held and fixed between the interior walls and the diaphragm, and the free vibration of the acoustic diaphragm is not hindered, and the acoustic characteristics are improved.

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing the structure of a vehicle-mounted supino J according to the present invention.
an interior material 1, such as a rear parel, a door 1-rim, a body lid, etc., which is made of a laminated molded product of a and a carveler 1-1b laminated on the surface of the interior material 1; Example λ in which the outer peripheral edge of the back surface is in contact with the peripheral edge of the rectangular frontage 2.

For example, an acoustic diaphragm 3 made of hard foamed polyurethane, etc., a screw [driver attached via screw 3] in the center of the back side of the acoustic diaphragm 3, a screw 1 to 4, A synthetic resin !J1 extruded molded body frame 5) that frames the outer periphery and is attached to the interior material, and a band that is attached to the side of the edge frame 5. IM is made from guard play 1 to 6 such as Ding Metal.

1. A plurality of locking claws 7, 7... are formed on the inner circumferential side of D5a between the edge frames 5 and protrude in the direction (); In the fitted state, each of these locking claws 7
The inner peripheral wall of the edge frame 5 is provided with a plurality of protrusions, rods 8, 8... are formed protrudingly, and correspondingly, holes 9, 9, .
Formed.

In addition, the peripheral edge of the one-dore play 1-6 is formed with notches 10, 10, etc. in order to avoid the respective locking claws 7, 7, and so on, and furthermore, the peripheral edge at -] Insertion holes 11, 11, . . . are formed at appropriate positions to be fitted into boss portions (not shown) formed on the bottom surface of the edge frame 7.

Further, a necking agent 12 for temporarily fixing the acoustic diaphragm 3 is applied to the periphery of the spacer 2 of the interior material 1 d5.
The 4-piece diaphragm 3 with the dry contacts 1 to 4 attached to the back of the central part of A is fixed to the periphery of the opening of the month 1 with a glue 12 through C temporary 11. Then, fit the edge frame 5 to which the guard plays 1 to G are attached to the outer periphery of the edge frame 5, insert the J-,'nL rods 8, and attach the button-on fixes described later to the protruding ends of the rear side of the edge frame 5. As a result, as shown in FIG. 2, the outer periphery of the acoustic diaphragm is in a state where the outer periphery of the acoustic diaphragm is set by the edge frame 'C'lfl (γ~) The stomach diaphragm 3 is fixed to the interior material 1F.

Therefore, in this state where J is attached, as shown in the same figure, the push seat 11 fixes 12 described in 1-1 are attached 17 to the protruding end of the 1-1 dot of the edge frame 5. , which are provided protrudingly on the inner periphery of the edge frame 5, so that each of the retaining claws 7 slightly bites into the outer periphery of the acoustic diaphragm 3, between the surface of the interior material 1 and the surface of the interior material 1. Clamping.

Fixed cover.

In addition, the part indicated by 13 in Fig. 2 is a boss part for fixing the I distribution-dob □ rate 6 to the inside of the two sides of the edge frame 5. The tip of the i was crushed,
In this state, guard gray 1-0 is well fixed inside the upper surface of the edge frame 5.

In this embodiment, in J3, a planar speaker consisting of a combination of an acoustic diaphragm 3 and a driver conduit 4 can be fixed to the surface of the interior material 1 with a single touch.

FIG. 3 shows another embodiment of the present invention, so in this example, the frame 5 is replaced with the edge 8.
Insert the bolt 20 into the inner peripheral wall of the bolt 1 in advance, insert the bolt 20 into the hole 1 through the insertion hole formed in the interior material 1, and screw the knot 21 into the protruding end of the bolt 1. Shi C fixed Riru J, it's strange. 41 The other parts of the Juki are the same (").
'(Explanation omitted.

In this embodiment, the strength of the retainer 1 of the diaphragm 33 is adjusted by adjusting the strength of the retainer 1 of the diaphragm 33 without tightening the bolts 1 and 21, and no adhesive is required.

Jχ- [Detailed explanation in each example
1) Fix the periphery of the speaker with the locking claws formed on the inner side of the edge frame to attach the speaker to the 11-inch diaphragm. The interior (Δ) is held in a sandwiched state between the edge frame 1.1 and fixed 4. Since there is a sea urchin hole, the vibration of the diaphragm is not hindered by its outer periphery. In order to reliably transmit information to the interior system, the iFI zone becomes quieter and the speaker performance improves.

In addition, in this invention, since the frame is fitted into the frame as described in 1, the J plate is fixed with the wanta 1-, so the handle (=J47 is the best (simplified 11i') ·can be,
ψ (, - is the structure of A) too! It is easy to use, and manufacturing = 1 lb Ansan, and there are 9 various advantages.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the layout A-1 structure of the application speaker according to the present invention, Fig. 12 is a cross-sectional view of the floor plan A-1 state, and Fig. 33 [other than this invention] This example is shown in a small J partial sectional view. 1・・・・・・・・・Inner 'IA Shrine 1a...
...Core material 11] ...Carpeller 1- (skin for sieving)
3...S°', ¥Q diaphragm 4...
・・・・・・・・・Don Ivar? -Tut 5)...
・・・・・・・・・Edge frame 7・・・・・・・・・・・・Part 11-claw 8.20...
Protrusion for take-I/L (8... [1 Tsudo, 20... Port 1~)℃)...
......Through hole diagram 1

Claims (1)

[Claims] (1) The laminated molded product of the hard board and the decorative skin is arched, and the interior material has an opening formed therein for installation; C1 on the surface side of the interior material ] An acoustic diaphragm made of hard trade foam with the outer periphery of the back surface in contact with the periphery and a tribar attached to the back surface of the diaphragm. (17th: The edge frame has a plurality of holes that penetrate the interior material and are firmly attached to it (=J
In addition to having a latch projection, the inner edge thereof has a latch 11 that engages with the outer peripheral edge of the front side of the L sound diaphragm; A mounting structure for a car speaker, characterized in that the mounting structure is formed by holding the inside of the vehicle under pressure between an interior material and an edge frame.