WO2023243643A1 - Glass diaphragm and glass diaphragm with vibrator - Google Patents

Abstract

Provided is a glass diaphragm comprising: a glass sheet composite; a mount portion which is fixed to the glass sheet composite and to which a vibrator for vibrating the glass sheet composite is attached; and an adherend which opposes a first main surface of the glass sheet composite along an end side of the glass sheet composite. The mount portion includes a main mount portion which includes a connection portion to which the vibrator is attached and an extension portion which connects with the main mount portion, and at least a part of the extension portion is fixed to the adherend.

Description

Glass diaphragm and glass diaphragm with vibrator

The present invention relates to a glass diaphragm and a glass diaphragm with a vibrator.

In recent years, techniques have been studied to vibrate various plate-shaped members, such as members for electronic devices, window members for vehicles, and interior members of transportation machines such as vehicles, to function as speakers. For example, Patent Documents 1 to 6 disclose various structures that transmit the vibrations of an electrically vibrating exciter (vibrator) to a diaphragm such as a glass plate.

Patent Document 1 discloses that a sole, a base, and an attachment are laminated in this order on the main surface of a glass plate, the sole and the base are fixed by a plastic part that covers a part of the glass plate, and the attachment is mounted on the fixed base. discloses a structure for connecting vibrators.

International Publication No. 2021/229179 International Publication No. 2021/229180 International Publication No. 2019/172076 Japanese Patent Application Publication No. 2010-263512 Japanese Patent Application Publication No. 2009-100223 Japanese Patent Application Publication No. 2013-198082

However, with the mounting structure for mounting such a vibrator on a glass plate, continued use of the vibrating vibrator may cause the mounting position to shift, resulting in a decrease in sound reproduction quality, or the vibrator itself falling off. There was a risk that In addition, with a structure in which the sole and base are fixed to the glass plate by the plastic part, as in the mounting structure described in Patent Document 1, the structure becomes complicated and it is difficult to stably overcoat the sole and base with the plastic part. There were problems such as Furthermore, due to temperature changes, there was a risk that the strength of the plastic portion in fixing the sole and the base would decrease.

Therefore, the present invention makes it possible to stably attach a vibrator to a glass plate structure, prevent the deterioration of the quality of the sound emitted from the glass diaphragm due to misalignment of the vibrator, and prevent the vibrator from falling off due to temperature changes. The purpose of the present invention is to provide a glass diaphragm and a glass diaphragm with a vibrator that can suppress a decrease in strength.

The present invention consists of the following configuration.
(1) A glass plate structure;
a mount part fixed to the glass plate structure and to which a vibrator for vibrating the glass plate structure is attached;
an adherend facing the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount part includes a main mount part including a connection part to which the vibrator is attached, and an extension part connected to the main mount part,
A glass diaphragm, wherein at least a portion of the extension portion is fixed to the adherend.
(2) A glass diaphragm with a vibrator, comprising the glass diaphragm of (1) above and the vibrator connected to the connection part of the mount part.

According to the present invention, it is possible to stably attach the vibrator to the glass plate structure, and it is also possible to suppress the deterioration in the quality of the sound emitted from the glass diaphragm and the fall of the vibrator due to the displacement of the vibrator. Decrease in fixation strength due to this can be suppressed.

FIG. 1 is a schematic plan view of a glass diaphragm with a vibrator. FIG. 2 is a perspective view of the lower edge portion of the glass diaphragm with a vibrator. FIG. 3 is a cross-sectional view taken along line III--III in FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 5 is an enlarged view of the lower edge portion of the glass diaphragm. FIG. 6 is an exploded perspective view of the glass diaphragm. FIG. 7 is a schematic plan view of a glass diaphragm with a vibrator provided with an adherend for holding a mount. FIG. 8 is a sectional view of a lower edge portion of a glass diaphragm of another configuration example. FIG. 9 is a sectional view of a lower edge portion of a glass diaphragm of another configuration example. FIG. 10 is an enlarged view of the lower edge portion of the glass diaphragm according to Modification 1. FIG. 11 is an enlarged view of the lower edge portion of the glass diaphragm according to Modification 2. FIG. 12 is an exploded perspective view of a glass diaphragm according to Modification Example 3. FIG. 13 is a cross-sectional view along the thickness direction of the glass plate structure at the lower edge portion of the glass diaphragm according to Modification Example 3.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The glass diaphragm with a vibrator of this embodiment includes a glass diaphragm and a vibrator that vibrates the glass diaphragm, and can be applied to, for example, vibrating a glass plate for a vehicle. In the following explanation, an example in which a glass diaphragm with a vibrator is applied to a window such as a side window of a vehicle will be explained, but the applicable vehicle windows are not limited to this, and there are also applications for windows other than vehicles. May be applied to

<Overall configuration of glass diaphragm>
FIG. 1 is a schematic plan view of a glass diaphragm 100 with a vibrator. FIG. 2 is a perspective view of the lower edge portion of the glass diaphragm 100 with a vibrator. FIG. 3 is a cross-sectional view taken along line III--III in FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 5 is an enlarged view of the lower edge portion of the glass diaphragm 11. FIG. 6 is an exploded perspective view of the glass diaphragm 11.

As shown in FIGS. 1 to 6, the glass diaphragm 11 includes a glass plate structure 15, a mount portion 17, a connecting portion 19, and an adherend 16. A vibrator 13 that generates vibrations can be attached to the glass diaphragm 11 on the main surface of the glass plate structure 15 .

<Configuration of glass diaphragm with vibrator>
The glass diaphragm 100 with a vibrator has a structure in which a vibrator 13 is attached to a glass diaphragm 11 . The vibrator 13 is connected to and fixed to the connecting portion 19, and the connecting portion 19 is fixed to the mount portion 17. The vibrator 13 is fixed to the connecting portion 19 by at least one of mechanical fastening using screws, bolts/nuts, rivets, keys, pins, clips, etc., and adhesion using an adhesive. Note that the vibrator 13 and the connecting portion 19 may have a structure in which they are firmly fixed to each other using different members, or may have a structure in which they are integrated as the same member. The connecting portion 19 is mechanically fixed to the mount portion 17. The mount portion 17 is fixed to the first main surface 15a, which is one main surface of the glass plate structure 15. Thereby, the vibrator 13 is attached to the first main surface 15a of the glass plate structure 15 via the connecting portion 19 and the mount portion 17. The mount portion 17 and the first main surface 15a may be fixed by an adhesive layer (not shown) or the like, and the glass plate structure 15 is brought into contact with the first main surface 15a and the second main surface 15b so as to be sandwiched between them. may be fixed to

For example, when the glass diaphragm 11 is used as a side window of a vehicle, the vibrator 13 is arranged in a region below the belt line BL (see FIG. 1). Thereby, the sound generated from the glass plate structure 15 can be supplied into the vehicle interior. Note that the belt line BL corresponds to the lower side of the opening when the side window is fully closed when the side window is attached to the vehicle (door).

The vibrator 13 is an excitation device that uses the object it comes into contact with as a diaphragm and generates sound from the diaphragm. The vibrator-equipped glass diaphragm 100 to which the vibrator 13 is mounted vibrates the glass diaphragm 11 by driving the vibrator 13 to generate desired sound. Although not shown in the drawings, the vibrator 13 used here includes an exciter that includes a coil section electrically connected to an external device, a magnetic circuit section, and an excitation section. According to this exciter, when a sound electrical signal from an external device is input to the coil section, vibration is generated in the coil section or the magnetic circuit section due to interaction between the coil section and the magnetic circuit section. The vibrations of the coil section or the magnetic circuit section are transmitted to the vibrating section, and the vibrating section generates vibrations. Note that a conductive wire (not shown) for driving the vibrator 13 is attached to the vibrator 13.

<Glass plate structure>
The glass plate structure 15 that constitutes the glass diaphragm 11 has a first main surface 15a and a second main surface 15b. Here, the glass plate structure 15 is illustrated as a single glass plate (single glass), but other types such as laminated glass in which a resin interlayer or a liquid intermediate layer is sandwiched between a pair of glass plates are used. It can also be a form. The thickness of the glass plate structure 15 is preferably 1 [mm] or more, more preferably 2 [mm] or more, and even more preferably 3 [mm] or more. Thereby, the strength of the glass plate structure 15 can be made sufficient.

<Mount part>
The mount section 17 has a main mount section 21 and an extension section 23. The mount portion 17 can be made of materials such as metal materials such as aluminum or aluminum alloys, titanium alloys, magnesium alloys, and stainless steel, ceramics, glass, resin materials, carbon fibers, and composite materials made of these materials. Examples of resin materials include acrylic resins such as polymethyl methacrylate resin (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), urethane, polypropylene (PP), polybutylene terephthalate (PBT), and polyphenylene sulfide (PPS). ), polystyrene (PS), nylon 66, ABS resin, etc., and can be made into a structure with excellent moldability. Furthermore, it is more preferable to use fiber-reinforced plastics containing glass fibers or carbon fibers. By using the above material, sufficient connection strength can be obtained without causing cracks or the like in the mount portion 17. The mount portion 17 may be made of a single material, or may be made of a composite material such as an aluminum alloy and stainless steel, or a resin material and stainless steel.

The main mount portion 21 is formed into a circular shape when the glass plate structure 15 is viewed from above. Note that the outer edge shape of the main mount portion 21 in a plan view of the glass plate structure 15 is not limited to a circular shape, but may be any shape such as a polygon.

The extension part 23 is formed in the shape of a strip, and one end is connected to the side of the main mount part 21 that is attached to the glass plate structure 15. The main mount part 21 and the extension part 23 are integrally formed, and the extension part 23 extends laterally from the outer peripheral edge of the main mount part 21 along the first main surface 15a of the glass plate structure 15. has been done. This extension part 23 is arranged along the edge of the glass plate structure 15.

In the mount part 17 having the main mount part 21 and the extension part 23, the thickness of the main mount part 21 with respect to the first main surface 15a of the glass plate structure 15 is greater than the thickness of the extension part 23 with respect to the first main surface 15a. It is thick. However, the thickness of the extension part 23 is not necessarily limited to the case where it is thinner than the thickness of the main mount part 21, and there may be a part that is thicker. Further, the extension portion 23 may have a thickness that gradually decreases as it moves away from the main mount portion 21.

The mount part 17 may have a structure in which the main mount part 21 and the extension part 23 are separate members, and the extension part 23 can be attached to the main mount part 21. By forming the main mount portion 21 and the extension portion 23 as separate members, the shape and structure of each member can be simplified and manufactured easily. Note that the main mount portion 21 and the extension portion 23 may be attached to each other by mechanical fastening using screws or the like, welding, engagement by insertion, or the like. Furthermore, these may have a structure in which they are fixed with an adhesive (including an adhesive or the like), or may be further fixed with an adhesive in combination with the above-mentioned mechanical engagement means.

The main mount portion 21 has a screw hole 25 on the side opposite to the side on which it is fixed to the glass plate structure 15. The connecting portion 19 provided on the vibrator 13 has a screw shaft 27, and by screwing the screw shaft 27 into the screw hole 25 of the main mount portion 21 fixed to the glass plate structure 15, the connecting portion 19 is closed. 19 is fastened to the main mount portion 21 (see FIG. 2). In addition, by loosening the connection part 19 screwed into the main mount part 21, the vibrator 13 (in this case, the member to which the vibrator 13 and the connection part 19 are fixed) can be removed from the glass plate structure 15, so that the vibration The child 13 can be easily replaced. Note that the thread structure between the connecting part 19 and the main mount part 21 is not limited to a combination in which the connecting part 19 has a convex threaded part and the main mount part 21 is screwed into the concave threaded part. 19 may have a concave threaded portion, and the main mount portion 21 may have a convex threaded portion that is screwed into the concave threaded portion. Further, the fixing structure between the main mount part 21 and the connecting part 19 is not limited to a screw structure, and may be mechanically fastened by, for example, a rivet, a key, a pin, a clip, or the like.

A first adhesive layer 31 is provided between the mount portion 17 and the glass plate structure 15 (see FIG. 4). The first adhesive layer 31 has a thickness of 0.50 mm or less, and is made of, for example, an acrylic, epoxy, silicone, urethane, or phenol adhesive tape. Further, the first adhesive layer 31 has an area of 50 [mm ² ] or more in a plan view of the glass plate structure 15. The mount portion 17 is adhesively fixed to the first main surface 15a of the glass plate structure 15 in close contact with the first adhesive layer 31. Thereby, the vibrations from the vibrator 13 can be transmitted to the glass plate structure 15 favorably, and the acoustic effect can be enhanced. In addition, in FIG. 4, the first adhesive layer 31 is provided entirely between the mount part 17 and the first main surface 15a, but for example, the first adhesive layer 31 is provided only between the main mount part 21 and the first main surface 15a. It may be provided between the entire main mount portion 21 and a portion of the extension portion 23 and the first main surface 15a.

<Adherend>
The adherend 16 is arranged along the edge of the glass plate structure 15. The glass plate structure 15 may be a holder attached to the lower end of the glass plate structure 15 when used as a vehicle sliding window in a side window. When the glass plate structure 15 is used as a vehicle sliding window in a side window, the adherend 16 is connected to an elevating mechanism (not shown), and the glass plate structure 15 is moved up and down by the elevating mechanism. The adherend 16 is located outside the glass plate structure 15 in a plan view of the glass plate structure 15, and has a connecting portion 35 for mechanically connecting the glass plate structure 15 in a slidable manner. have The connecting portion 35 is formed into a plate shape and has a connecting hole 37 for connecting a rod (not shown) of the lifting mechanism. By mechanically connecting the rod of the elevating mechanism to the connecting portion 35 of the adherend 16, the glass plate structure 15 can be easily made slidable.
Note that the adherend 16 may be a long glass channel with an increased clamping area in order to increase the clamping force of the holder. Similar to the holder, when the glass plate structure 15 is used as a vehicle sliding window in a side window, the glass channel is attached to the lower end of the glass plate structure 15 and fastened to an elevating mechanism, and is raised and lowered by the elevating mechanism. Ru.

Note that as an adherend for gripping the mount portion 17 and holding it on the glass plate structure 15, an adherend for holding the mount may be provided without using the adherend 16 (holder) of the elevating mechanism.
When the vehicle is running, the side windows also vibrate due to the vibrations of the vehicle body, and this vibration may generate noise. The adherend 16 may be a vibration damping channel that suppresses vibrations of the side window caused by running the vehicle. The damping channel, like the holder and the glass channel, is attached to the lower end of the glass plate structure 15. The adherend for gripping the mount may have a vibration damping channel function. When the mount gripping adherend is a vibration damping channel, the mount gripping adherend can function as a vibration damping channel when the vibrator 13 is not operating.

The material of the adherend 16 may be a resin material, a metal material, or a composite material made of a resin material and a metal material. Examples of resin materials include acrylic resins such as polymethyl methacrylate resin (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), urethane, polypropylene (PP), polybutylene terephthalate (PBT), polyphenylene sulfide ( PPS), polystyrene (PS), POM (polyacetal resin), nylon 66, ABS resin, etc., and can be made into a structure with excellent moldability. Furthermore, it is more preferable to use fiber-reinforced plastics containing glass fibers or carbon fibers. By using the above material, sufficient connection strength can be obtained without causing cracks or the like in the adherend 16. Examples of the metal material include aluminum alloy, stainless steel, and steel.

FIG. 7 is a schematic plan view of a vibrator-equipped glass diaphragm 100 provided with an adherend 14 for holding a mount.
The glass diaphragm 100 with a vibrator shown in FIG. 7 includes an adherend 14 for gripping a mount, separate from the adherend 16 of the elevating mechanism (at a different position). In this way, the glass plate structure 15 may be provided with the adherend 14 for gripping the mount, and the extension portion 23 of the mount portion 17 may be held by the adherend 14 together with the glass plate structure 15.

The adherend 16 has a first plate part 41, a second plate part 42, and a third plate part 43. The first plate portion 41 is arranged at a position facing the first main surface 15a of the glass plate structure 15. The second plate portion 42 is arranged at a position facing the lower end surface 15c of the glass plate structure 15 (see FIG. 6). The third plate portion 43 is arranged at a position facing the second main surface 15b of the glass plate structure 15. In this way, the adherend 16 having the first plate part 41, the second plate part 42, and the third plate part 43 has a U-shape in a cross-sectional view along the thickness direction of the glass plate structure 15. It is attached to the glass plate structure 15 by fitting into its lower edge. Thereby, the glass plate structure 15 is sandwiched and held by the first plate part 41 and the third plate part 43 of the adherend 16.

A portion of the extension portion 23 is held between the glass plate structure 15 and the adherend 16. The end portion of the extension portion 23 on the opposite side from the main mount portion 21 overlaps with the first plate portion 41 of the adherend 16 when the glass plate structure 15 is viewed from above. In this way, the mount part 17 adhesively fixed to the glass plate structure 15 by the first adhesive layer 31 is prevented from falling off from the glass plate structure 15 because the extension part 23 is held between the adherends 16. It will be done.

Further, the adherend 16 is located on the side opposite to the first main surface 15a of the glass plate structure 15 in the first plate part 41 and on the side opposite to the second main surface 15b of the glass plate structure 15 in the third plate part 43. It has a resin part 45 on the side. The glass plate structure 15 is held by the first plate part 41 and the third plate part 43 of the adherend 16 via the resin part 45. In this way, the adherend 16 has the resin portion 45 in the portion of the first plate portion 41 that abuts the extension portion 23 of the mount portion 17. It is pressed and fixed by the first plate part 41 of.

This resin part 45 may or may not have adhesive properties, but the loss coefficient tan δ is preferably 0.01 or more, and the shear storage modulus at 25 [°C] is 1.0 × 10 ⁸ [Pa] or less. preferable. Thereby, the extension part 23 of the mount part 17 can be firmly held on the glass plate structure 15 regardless of temperature changes.

As described above, the glass diaphragm 11 of this configuration example has a structure in which the extension part 23 of the mount part 17 is sandwiched and fixed between the glass plate structure 15 and the adherend 16. Therefore, the mount part 17 to which the connecting part 19 fixed to the vibrator 13 is attached can be firmly fixed to the glass plate structure 15 regardless of temperature changes, and the fall of the vibrator 13 from the glass plate structure 15 can be suppressed. It will be done.

In particular, the adherend 16 is formed in a U-shape in a cross-sectional view along the thickness direction of the glass plate structure 15, and has a first main surface 15a and a second main surface 15b of the glass plate structure 15. Since the extension part 23 is held between the two, the extension part 23 can be maintained in a good fixed state by the adherend 16. Therefore, the mount part 17 can be firmly fixed to the glass plate structure 15, and falling off of the vibrator 13 (mount part 17) from the glass plate structure 15 can be well suppressed.

Furthermore, in the mount portion 17, the thickness of the main mount portion 21 relative to the first main surface 15a of the glass plate structure 15 is greater than the thickness of the extension portion 23. Therefore, the extension part 23, which is thinner than the main mount part 21, can be easily held between the adherends 16, and the mount part 17 can be fixed to the glass plate structure 15 (see FIGS. 2 to 4).

Furthermore, the thickness of the extension portion 23 of the mount portion 17 at the portion facing the first plate portion 41 of the adherend 16 is 3.0 [mm] or less. This extension part 23 is preferably thin in order to be held by the adherend 16. In this configuration example, by setting the thickness of the portion of the extension portion 23 facing the first plate portion 41 of the adherend 16 to 3.0 [mm] or less, the extension portion 23 can be easily attached to the adherend 16. The mount portion 17 can be fixed to the glass plate structure 15 by being sandwiched therebetween. Note that the thickness of the extension portion 23 is preferably 2.5 [mm] or less, more preferably 2.0 [mm] or less. Further, the thickness of the extension part 23 is preferably 0.1 [mm] or more, and 0.2 [mm] or more in order to support the main mount part 21 whose weight increases when the vibrator 13 is assembled. It is more preferable, and even more preferably 0.5 [mm] or more.

Further, the extension portion 23 disposed along the lower edge of the glass plate structure 15 has a width of 50 [mm] or less perpendicular to the longitudinal direction facing the first plate portion 41 of the adherend 16. be. The width of this extension part 23 is preferably narrow in order to be held between the adherends 16. In this configuration example, since the width of the extension part 23 perpendicular to the longitudinal direction is 50 [mm] or less, the extension part 23 can be easily held between the adherends 16 and the mount part 17 can be fixed to the glass plate structure 15. can. Note that the width of the extension portion 23 perpendicular to the longitudinal direction is preferably 30 [mm] or less, more preferably 20 [mm] or less. Further, the width of the extension part 23 perpendicular to the longitudinal direction is preferably 1 [mm] or more, and 3 [mm] or more, in order to support the main mount part 21 whose weight increases when the vibrator 13 is assembled. More preferably, it is 5 [mm] or more.

Furthermore, in a plan view of the glass plate structure 15, the shortest distance D from the center of the main mount portion 21 to the adherend 16 (see FIG. 5) is 10 [mm] or more. If the main mount part 21 is too close to the adherend 16, the vibration of the vibrator 13 assembled to the main mount part 21 will be transmitted to the adherend 16, causing the adherend to vibrate. It is preferable that it be away from the adherend 16. In this configuration example, since the shortest distance D from the center of the main mount part 21 to the adherend 16 is 10 [mm] or more, the vibration from the vibrator 13 is transmitted from the main mount part 21 of the mount part 17 to the adherend 16. Transmission to the body 16 can be suppressed. Thereby, transmission loss of vibration between the mount portion 17 and the glass plate structure 15 is suppressed, and vibrations from the vibrator 13 are favorably transmitted to the glass plate structure 15, thereby enhancing the acoustic effect. Note that the shortest distance D from the center of the main mount portion 21 to the adherend 16 is preferably 30 [mm] or more, and more preferably 50 [mm] or more.

Furthermore, the mount portion 17 provided with the extension portion 23 has a larger adhesive area with the glass plate structure 15. Therefore, if the adhesive strength of the first adhesive layer 31 between the mount part 17 and the glass plate structure 15 is too strong, it becomes difficult to separate the mount part 17 from the glass plate structure 15. In the glass diaphragm 11 of this configuration example, the first adhesive layer 31 between the mount portion 17 and the glass plate structure 15 has a shear peel strength of 1.0 [MPa] or less at 25 [° C.], The adhesive strength of the mount portion 17 to the glass plate structure 15 is suppressed. Therefore, the mount portion 17 can be separated and sorted from the glass plate structure 15 without damage, and recyclability can be improved. Note that the shear peel strength of the first adhesive layer 31 at 25 [° C.] is preferably 0.5 [MPa] or less, more preferably 0.2 [MPa] or less.

On the other hand, the adhesive strength of the mount portion 17 to the glass plate structure 15 is also required to be able to withstand sudden stress. Therefore, the shear peel strength at 25 [° C.] of the first adhesive layer 31 between the mount portion 17 and the glass plate structure 15 is preferably at least 0.001 [MPa] or more, and preferably 0.005 [MPa] or more. is more preferable, and 0.010 [MPa] or more is even more preferable.

Furthermore, as the thickness of the first adhesive layer 31 between the mount portion 17 and the glass plate structure 15 increases, the transmission loss of vibration between the mount portion 17 and the glass plate structure 15 increases. . In other words, the thinner the first adhesive layer 31 between the glass plate structure 15 and the mount part 17 is, the more preferable it is in order to suppress the absorption of vibrations of the vibrator 13 assembled to the mount part 17 (see FIG. 4). . In this configuration example, since the first adhesive layer 31 has a thickness of 0.50 [mm] or less, transmission loss of vibration between the mount portion 17 and the glass plate structure 15 is suppressed. Thereby, vibrations from the vibrator 13 assembled to the mount portion 17 can be efficiently transmitted to the glass plate structure 15, and the acoustic effect can be enhanced. Note that the thickness of the first adhesive layer 31 is preferably 0.25 [mm] or less, more preferably 0.15 [mm] or less, and even more preferably 0.05 [mm] or less.

Further, the first adhesive layer 31 has an area of 50 [mm ² ] or more in a plan view of the glass plate structure 15. Therefore, even if the separation between the glass plate structure 15 and the mount part 17 is improved by using an adhesive tape or the like with low adhesive strength as the first adhesive layer 31, the mount part 17 is not sufficiently separated from the glass plate structure 15. Can be fixed with adhesive. Note that the area of the first adhesive layer 31 in a plan view of the glass plate structure 15 is preferably 200 [mm ² ] or more, and more preferably 500 [mm ² ] or more.

Further, the glass diaphragm 11 of this configuration example is applicable not only to side windows of vehicles such as automobiles, but also to windshields, rear windows, roof glazings, front quarter windows, etc. This enables a three-dimensional sound system that combines the glass diaphragm 11 and existing speakers, a noise canceling system that applies opposite-phase sound waves to noise from outside the vehicle to cancel it out, and a reflection control system that cancels the echoes of music inside the vehicle. It can make a big contribution. In addition to vehicle windows, the present invention can also be applied to building windows, structural members, and decorative panels, and can also be used as a diaphragm member for flat panel speakers.

Note that the glass diaphragm 11 of the above configuration example includes a U-shaped adherend 16 in a cross-sectional view along the thickness direction of the glass plate structure 15 (see FIG. 6); may have a plate shape fixed to the first main surface 15a of the glass plate structure 15. In this case, the extension part 23 of the mount part 17 is held between the first main surface 15a of the glass plate structure 15 and the plate-shaped adherend 16 fixed to the first main surface 15a of the glass plate structure 15. and retained. Further, the adherend 16 may have an L-shape having a first plate part 41 and a second plate part 42, and in this case, the extension part 23 of the mount part 17 is formed on the first main surface of the glass plate structure 15. 15a and the first plate portion 41 of the adherend 16 and held therebetween.

Further, in the glass diaphragm 11 of the above configuration example, the extension part 23 of the mount part 17 is sandwiched between the glass plate structure 15 and the adherend 16, but the extension part 23 is The present invention is not limited to a structure in which the structure is sandwiched between the structure 15 and the adherend 16.

8 and 9 are cross-sectional views of the lower edge portion of the glass diaphragm 11 of other configuration examples, respectively.

In the configuration example shown in FIG. 8, the extension part 23 has a crank part 24, and the end part on the opposite side from the main mount part 21 is arranged at a position separated from the glass plate structure 15 by the crank part 24. The end portion of the extension portion 23 located away from the glass plate structure 15 is arranged along the outer surface of the first plate portion 41 of the adherend 16 and is fixed to the first plate portion 41. has been done.

In the configuration example shown in FIG. 9, one end of the extension portion 23 is connected to a position spaced apart from the side of the main mount portion 21 where it is attached to the glass plate structure 15, and extends laterally. The end portion of the extension portion 23 opposite to the main mount portion 21 is disposed along the outer surface of the first plate portion 41 of the adherend 16 and is fixed to the first plate portion 41 .

In the configuration examples shown in FIGS. 8 and 9, the extension portion 23 is fixed to the adherend 16 by at least one of mechanical fastening using screws, bolts/nuts, rivets, keys, pins, clips, etc., and adhesive bonding. It is fixed by means such as.

Further, the structure for holding the mount portion 17 by the adherend 16 of the glass diaphragm 11 described above is only one example, and can be changed to various structures.
Hereinafter, a modification of the structure for holding the mount portion 17 by the adherend 16 will be described. In addition, in the following description, the same or corresponding parts or members will be given the same or corresponding reference numerals, thereby omitting redundant explanation.

(Modification 1)
FIG. 10 is an enlarged view of the lower edge portion of the glass diaphragm 11 according to Modification Example 1.
As shown in FIG. 10, the glass diaphragm 11 according to the first modification includes an adherend 16 having a short length (in this case, the length along the lower end), and the adherend 16 has a short length (in this case, the length along the lower end). 17, the longitudinally intermediate portion of the extension portion 23 is held. In other words, the extension part 23 of the mount part 17 is held by the adherend 16 in a state where the end opposite to the main mount part 21 does not overlap with the adherend 16 when the glass plate structure 15 is viewed from above. There is. This prevents the mount portion 17 from falling off from the glass plate structure 15. Note that an end of the extension portion 23 on the opposite side from the main mount portion 21 with respect to the intermediate portion is preferably fixed to the glass plate structure 15 by a first adhesive layer 31 (not shown).

(Modification 2)
FIG. 11 is an enlarged view of the lower edge portion of the glass diaphragm 11 according to Modification 2.
As shown in FIG. 11, in the glass diaphragm 11 according to the second modification, the mount portion 17 includes a first extension portion 23A and a second extension portion 23B extending in different directions from the main mount portion 21. ing. The first extension part 23A and the second extension part 23B extend in opposite directions, and are respectively arranged along the lower edge of the glass plate structure 15.

Further, the glass diaphragm 11 according to the second modification has a first adherend 16A and a second adherend 16B as the adherend 16, and these first adherend 16A and the second adherend 16B The two adherends 16B are arranged on both sides of the main mount section 21 of the mount section 17. The first extended portion 23A has a longitudinally intermediate portion disposed between the glass plate structure 15 and the first adherend 16A, and the second extended portion 23B has a longitudinally intermediate portion disposed between the glass plate structure 15 and the first adherend 16A. It is arranged between the plate structure 15 and the second adherend 16B.

According to the glass diaphragm 11 according to the second modification, the first extension part 23A is held on the glass plate structure 15 by the first adherend 16A, and the second extension part 23B is held by the second adherend 16B. It is held by the plate structure 15. Thereby, the mount portion 17 can be held more firmly and in a well-balanced manner with respect to the glass plate structure 15.

(Modification 3)
FIG. 12 is an exploded perspective view of the glass diaphragm 11 according to Modification 3. FIG. 13 is a cross-sectional view along the thickness direction of the glass plate structure at the lower edge portion of the glass diaphragm 11 according to Modification Example 3.

As shown in FIGS. 12 and 13, in the glass diaphragm 11 according to the third modification, the extension portion 23 of the mount portion 17 has a first portion 51 and a second portion 52. The first portion 51 is arranged at a position facing the first main surface 15a of the glass plate structure 15. The second portion 52 extends in a direction perpendicular to the lower edge of the first portion 51 in a cross-sectional view along the thickness direction of the glass plate structure 15, and is located at a position facing the end surface 15c of the glass plate structure 15. Placed. Further, the extension portion 23 of the mount portion 17 further includes a third portion 53. The third portion 53 extends in a direction perpendicular to the side edge of the second portion 52 in a cross-sectional view along the thickness direction of the glass plate structure 15, and faces the second main surface 15b of the glass plate structure 15. It is placed in the position where it will be. Thereby, the extension part 23 is formed in a U-shape in a cross-sectional view along the thickness direction of the glass plate structure 15, and is fitted into the lower edge of the glass plate structure 15.

In the glass diaphragm 11 according to the third modification, the extension portion 23 fitted into the glass plate structure 15 is held by the adherend 16. As a result, in the extension part 23, the first part 51 is arranged between the first main surface 15a of the glass plate structure 15 and the first plate part 41 of the adherend 16, and the second part 52 is arranged in the glass plate structure. The third portion 53 is disposed between the end surface 15c of the glass plate structure 15 and the second plate portion 42 of the adherend 16, and the third portion 53 is disposed between the second main surface 15b of the glass plate structure 15 and the third plate of the adherend 16. 43. As a result, the first portion 51 , second portion 52 , and third portion 53 of the extension portion 23 of the mount portion 17 are held by the adherend 16 .

The extension portion 23 has a first resin layer 61 between the second portion 52 and the end surface 15c of the glass plate structure 15, and has a first resin layer 61 between the third portion 53 and the second main surface 15b of the glass plate structure 15. A second resin layer 62 is provided in between. As these first resin layer 61 and second resin layer 62, elastic materials such as rubber and urethane are preferable. Note that the first resin layer 61 and the second resin layer 62 may be made of a resin having adhesive properties such as an adhesive.

According to the glass diaphragm 11 according to the third modification, the holding strength of the mount portion 17 can be further increased, and falling off from the glass plate structure 15 can be further suppressed. Moreover, the first resin layer 61 between the second portion and the end surface 15c and the second resin layer 62 between the third portion and the second main surface 15b make the end surface 15c and the second main surface of the glass plate structure 15 15b can be protected. Moreover, the elastic force of the first resin layer 61 and the second resin layer 62 can suppress wobbling of the portion where the extension portion 23 is held by the adherend 16, and the holding force can be increased.

In addition, in modification 3, the glass plate structure 15 includes an extension portion 23 that has a U-shaped cross section along the thickness direction, and includes a first portion 51, a second portion 52, and a third portion 53. However, the extension portion 23 may have a first portion 51 and a second portion 52, and may have an L-shape in cross section along the thickness direction of the glass plate structure 15. In this case, in the extension part 23, the first part 51 is arranged between the first main surface 15a of the glass plate structure 15 and the first plate part 41 of the adherend 16, and the second part 52 is arranged in the glass plate structure. It is arranged between the end surface 15c of the body 15 and the second plate portion 42 of the adherend 16. As a result, the first portion 51 and the second portion 52 of the extension portion 23 of the mount portion 17 are held by the adherend 16 .

As described above, the present invention is not limited to the embodiments described above, and those skilled in the art can combine the configurations of the embodiments with each other, modify and apply them based on the description of the specification and well-known techniques. It is also contemplated by the present invention to do so, and is within the scope for which protection is sought.

As mentioned above, the following matters are disclosed in this specification.
(1) A glass plate structure;
a mount part fixed to the glass plate structure and to which a vibrator for vibrating the glass plate structure is attached;
an adherend facing the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount part includes a main mount part including a connection part to which the vibrator is attached, and an extension part connected to the main mount part,
A glass diaphragm, wherein at least a portion of the extension portion is fixed to the adherend.
According to the glass diaphragm having this configuration, at least a portion of the extension portion of the mount portion has a structure fixed to the adherend. Therefore, the mount portion to which the connecting portion fixed to the vibrator is attached can be firmly fixed to the glass plate structure regardless of temperature changes, and the vibrator can be prevented from falling off from the glass plate structure.

(2) The glass diaphragm according to (1), wherein at least a portion of the extension portion is held between the glass plate structure and the adherend.
According to the glass diaphragm having this configuration, at least a portion of the extension of the mount portion is held between the glass plate structure and the adherend, and it is possible to prevent the vibrator from falling off from the glass plate structure. .

(3) The glass diaphragm according to (2), wherein the adherend grips the first main surface of the glass plate structure and a second main surface opposite to the first main surface.
According to the glass diaphragm having this configuration, since the adherend grips the first main surface and the second main surface of the glass plate structure, it is possible to maintain a good sandwiching state of the extension part by the adherend. . Therefore, the mount portion can be firmly fixed to the glass plate structure, and falling off of the vibrator from the glass plate structure can be effectively suppressed.

(4) The glass vibrator according to any one of (1) to (3), wherein the thickness of the main mount portion with respect to the first main surface is thicker than the thickness of the extension portion with respect to the first main surface. Board.
According to the glass diaphragm having this configuration, the thickness of the main mount portion relative to the first main surface is greater than the thickness of the extension portion. In other words, at least a portion of the extension part, which is thinner than the main mount part, can be easily fixed to the adherend, and the mount part can be fixed to the glass plate structure.

(5) The glass diaphragm according to any one of (1) to (4), including a first adhesive layer between the mount portion and the glass plate structure.
According to the glass diaphragm having this configuration, the mount portion to which the vibrator is attached can be adhesively fixed to the glass plate structure by the first adhesive layer. Further, since the mount portion is closely attached to the glass plate structure by the first adhesive layer, vibrations from the vibrator can be smoothly transmitted to the glass plate structure, and the acoustic effect can be enhanced.

(6) The glass diaphragm according to (5), wherein the first adhesive layer has a shear peel strength of 1.0 [MPa] or less at 25 [° C.].
According to the glass diaphragm having this configuration, the shear peel strength at 25 [° C.] is 1.0 [MPa] or less, and the adhesive strength to the glass plate structure is suppressed. Therefore, the mount portion can be removed and separated from the glass plate structure without damage, and recyclability can be improved.

(7) The glass diaphragm according to (5) or (6), wherein the first adhesive layer has a thickness of 0.50 [mm] or less.
According to the glass diaphragm having this configuration, since the thickness of the first adhesive layer is 0.5 [mm] or less, transmission loss of vibration between the mount portion and the glass plate structure can be suppressed. Thereby, vibrations from the vibrator can be efficiently transmitted to the glass plate structure, and the acoustic effect can be enhanced.

(8) The glass diaphragm according to any one of (5) to (7), wherein the first adhesive layer has an area of 50 [mm ² ] or more in plan view of the glass plate structure.
According to the glass diaphragm having this configuration, since the area of the first adhesive layer in plan view of the glass plate structure is 50 [mm ² ] or more, an adhesive tape or the like with low adhesive strength is used as the first adhesive layer. Even if the separation between the glass plate structure and the mount part is improved, the mount part can be sufficiently adhesively fixed to the glass plate structure.

(9) The glass diaphragm according to any one of (1) to (8), wherein the extension portion has a thickness of 3.0 [mm] or less at a portion facing the adherend.
According to the glass diaphragm having this structure, by setting the thickness of the extension portion facing the adherend to 3 mm or less, the extension portion can be easily fixed by the adherend, and the glass plate structure The mount can be fixed to the body.

(10) The extension portion is along an edge of the glass plate structure,
The glass diaphragm according to any one of (1) to (9), wherein the extension portion facing the adherend has a width perpendicular to the longitudinal direction of 50 [mm] or less.
According to the glass diaphragm having this configuration, by arranging the extension portion having a width of 50 [mm] or less perpendicular to the longitudinal direction along the edge of the glass plate structure, the extension portion can be easily attached to the adherend. The mount portion can be fixed to the glass plate structure.

(11) Any one of (1) to (10), wherein the shortest distance from the center of the main mount part to the adherend is 10 [mm] or more in a plan view of the glass plate structure. The glass diaphragm described in .
According to the glass diaphragm having this configuration, the shortest distance from the center of the main mount part of the mount part to the adherend is 10 [mm] or more in plan view of the glass plate structure, so that vibrations from the vibrator are can be suppressed from being transmitted from the main mount part of the mount part to the adherend. Thereby, transmission loss of vibration between the mount part and the glass plate structure is suppressed, vibrations from the vibrator are smoothly transmitted to the glass plate structure, and acoustic effects can be enhanced.

(12) Any one of (1) to (11), wherein the extension portion has an end portion opposite to the main mount portion that overlaps with the adherend in a plan view of the glass plate structure. The glass diaphragm described in .
According to the glass diaphragm having this configuration, when the glass plate structure is viewed from above, the mount portion is held by the adherend in a state where the adherend overlaps at the end of the extension portion opposite to the main mount portion. This prevents the mount from falling off the glass plate structure.

(13) Any one of (1) to (11), wherein the extension part has an end opposite to the main mount part that does not overlap with the adherend in a plan view of the glass plate structure. The glass diaphragm described in .
According to the glass diaphragm having this configuration, when the glass plate structure is viewed from above, the mount portion is held by the adherend in a state where the adherend does not overlap at the end of the extension portion opposite to the main mount portion. This prevents the mount from falling off the glass plate structure.

(14) The extension portion has a first portion facing the first main surface of the glass plate structure, and a second portion facing the end surface of the glass plate structure,
The glass diaphragm according to any one of (1) to (13), wherein at least a portion of the second portion is disposed between the end surface and the adherend.
According to the glass diaphragm having this configuration, the extension portion has a first portion facing the first main surface of the glass plate structure, a second portion facing the end surface of the glass plate structure, and a second portion facing the first main surface of the glass plate structure. At least a portion of the portion is disposed between the end surface and the adherend. In other words, the extension part of the mount part has a first part held by the first main surface of the glass plate structure and the adherend, and a second part held by the end face of the glass plate structure and the adherend. be done. Thereby, the holding strength of the mount part can be increased, and falling off from the glass plate structure can be further suppressed.

(15) The glass diaphragm according to (14), further comprising a first resin layer between the second portion and the end surface.
According to the glass diaphragm having this configuration, the end face can be protected by the first resin layer between the second portion and the end face. This makes it possible to suppress the occurrence of cracks at the end faces of the glass plate structure.

(16) The extension portion has a third portion that faces a second main surface that faces the first main surface of the glass plate structure,
The glass diaphragm according to (14) or (15), wherein at least a portion of the third portion is disposed between the second main surface and the adherend.
According to the glass diaphragm having this configuration, the extension portion having the first portion and the second portion further has a third portion facing the second main surface of the glass plate structure. At least a portion of this third portion is disposed and held between the second main surface and the adherend. Thereby, the holding strength of the mount part can be further increased, and falling off from the glass plate structure can be further suppressed.

(17) The glass diaphragm according to (16), further comprising a second resin layer between the third portion and the second main surface.
According to the glass diaphragm having this configuration, the second main surface can be protected by the second resin layer between the third portion and the second main surface. Moreover, the elastic force of the second resin layer can suppress wobbling at the portion where the extension part is held by the adherend, thereby increasing the holding force.

(18) The main mount part and the extension part are separate members,
The glass diaphragm according to any one of (1) to (17), wherein the mount part has a structure to which the main mount part and the extension part can be attached.
According to the glass diaphragm having this configuration, by making the main mount part and the extension part separate members, the shape and structure of each member can be simplified and manufactured easily.

(19) The extension part has a first extension part and a second extension part extending in different directions from the main mount part,
The adherend includes a first adherend and a second adherend,
At least a portion of the first extension portion is disposed between the glass plate structure and the first adherend,
The glass diaphragm according to any one of (1) to (18), wherein at least a portion of the second extension is disposed between the glass plate structure and the second adherend.
According to the glass diaphragm having this configuration, the first extension part is held to the glass plate structure by the first adherend, and the second extension part is held to the glass plate structure by the second adherend. Thereby, the mount portion can be held more firmly and in a well-balanced manner with respect to the glass plate structure.

(20) The adherend is located outside the glass plate structure in a plan view of the glass plate structure, and is a connection for mechanically connecting the glass plate structure in a slidable manner. The glass diaphragm according to any one of (1) to (19), which is a glass adherend having a portion.
According to the glass diaphragm having this configuration, since the adherend is a glass adherend having a connecting portion, for example, by mechanically connecting an elevating mechanism or the like to the connecting portion of the glass adherend, The glass plate structure can be easily made slidable.

(21) The glass diaphragm according to any one of (1) to (20), wherein the glass plate structure is a sliding window for a vehicle.
According to the glass diaphragm having this configuration, by attaching the vibrator to the mount part of the glass plate structure and assembling this glass plate structure into a vehicle as a sliding window for a vehicle, the glass plate structure can be removed from the inside of the vehicle. The sound generated can be supplied.

(22) A glass diaphragm with a vibrator, comprising the glass diaphragm according to any one of (1) to (21), and the vibrator connected to the connection part of the mount part.
According to the glass diaphragm with a vibrator having this configuration, by fixing the connecting part to the mount part fixed to the glass plate structure and attaching the vibrator to the mount part, the glass diaphragm can be attached to the mount part fixed to the glass plate structure. Can be made into a glass diaphragm with a vibrator.

Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes or modifications within the scope of the claims, and these naturally fall within the technical scope of the present invention. Understood. Further, each of the constituent elements in the above embodiments may be arbitrarily combined without departing from the spirit of the invention.

Note that this application is based on a Japanese patent application (Japanese Patent Application No. 2022-095306) filed on June 13, 2022, and the contents thereof are incorporated as a reference in this application.

11 Glass diaphragm 13 Vibrator 14 Adherent 15 Glass plate structure 15a First principal surface 15b Second principal surface 15c End surface 16 Adherent 16A First adherend 16B Second adherend 17 Mount portion 19 Connection portion 21 Main mount part 23 Extension part 23A First extension part 23B Second extension part 31 First adhesive layer 35 Connection part 51 First part 52 Second part 53 Third part 61 First resin layer 62 Second resin layer 100 Vibrator Glass diaphragm with D Shortest distance

Claims (22)

a glass plate structure;
a mount part fixed to the glass plate structure and to which a vibrator for vibrating the glass plate structure is attached;
an adherend facing the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount part includes a main mount part including a connection part to which the vibrator is attached, and an extension part connected to the main mount part,
A glass diaphragm, wherein at least a portion of the extension portion is fixed to the adherend. The glass diaphragm according to claim 1, wherein at least a portion of the extension portion is sandwiched between the glass plate structure and the adherend. The adherend is formed in a U-shape in a cross-sectional view along the thickness direction of the glass plate structure, and faces the first main surface of the glass plate structure and the first main surface. The glass diaphragm according to claim 2, wherein the glass diaphragm grips the second main surface. The glass diaphragm according to claim 1, wherein the thickness of the main mount portion relative to the first main surface is thicker than the thickness of the extension portion relative to the first main surface. The glass diaphragm according to claim 1, further comprising a first adhesive layer between the mount portion and the glass plate structure. The glass diaphragm according to claim 5, wherein the first adhesive layer has a shear peel strength of 1.0 [MPa] or less at 25 [° C.]. The glass diaphragm according to claim 5, wherein the first adhesive layer has a thickness of 0.50 [mm] or less. The glass diaphragm according to claim 5, wherein the first adhesive layer has an area of 50 [ ^mm2 ] or more in a plan view of the glass plate structure. The glass diaphragm according to claim 1, wherein the extension portion has a thickness of 3.0 [mm] or less at a portion facing the adherend. The extension portion is along an edge of the glass plate structure,
The glass diaphragm according to claim 1, wherein a width perpendicular to the longitudinal direction of the extension portion facing the adherend is 50 [mm] or less. The glass diaphragm according to claim 1, wherein the shortest distance from the center of the main mount part to the adherend is 10 [mm] or more in a plan view of the glass plate structure. The glass diaphragm according to claim 1, wherein an end of the extension portion on the opposite side from the main mount portion overlaps with the adherend in a plan view of the glass plate structure. The glass diaphragm according to claim 1, wherein the end of the extension portion opposite to the main mount portion does not overlap with the adherend in a plan view of the glass plate structure. The extension portion has a first portion facing the first main surface of the glass plate structure, and a second portion facing the end surface of the glass plate structure,
The glass diaphragm according to claim 1, wherein at least a portion of the second portion is disposed between the end surface and the adherend. The glass diaphragm according to claim 14, further comprising a first resin layer between the second portion and the end surface. The extension portion has a third portion facing a second main surface opposite to the first main surface of the glass plate structure,
The glass diaphragm according to claim 14, wherein at least a portion of the third portion is disposed between the second main surface and the adherend. The glass diaphragm according to claim 16, further comprising a second resin layer between the third portion and the second main surface. The main mount part and the extension part are separate members,
The glass diaphragm according to claim 1, wherein the mount section has a structure to which the main mount section and the extension section can be attached. The extension part has a first extension part and a second extension part extending in different directions from the main mount part,
The adherend includes a first adherend and a second adherend,
At least a portion of the first extension portion is disposed between the glass plate structure and the first adherend,
The glass diaphragm according to claim 1, wherein at least a portion of the second extension is disposed between the glass plate structure and the second adherend. The adherend has a connecting portion that is located outside the glass plate structure in a plan view of the glass plate structure and mechanically connects the glass plate structure in a slidable manner. The glass diaphragm according to claim 1, which is a glass adherend. The glass diaphragm according to claim 1, wherein the glass plate structure is a sliding window for a vehicle. A glass diaphragm with a vibrator, comprising the glass diaphragm according to any one of claims 1 to 21, and the vibrator connected to the connection part of the mount part.

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