Glass diaphragm, vibrator-equipped glass diaphragm, method for manufacturing glass diaphragm, and method for manufacturing vibrator-equipped glass diaphragm

Abstract

The present invention relates to a glass diaphragm comprising: a glass plate structure; a mounting part fixed to the glass plate structure; a connecting part which is mounted on the mounting part and is fixed to a vibrator that vibrates the glass plate structure; and a first adhesive layer and a second adhesive layer disposed between the glass plate structure and the mounting portion, the first adhesive layer and the second adhesive layer being made of different materials.

Description

Technical Field

[0001] The present invention relates to a glass diaphragm, a glass diaphragm with a diaphragm, a method for manufacturing a glass diaphragm, and a method for manufacturing a glass diaphragm with a diaphragm. Background Art

[0002] In recent years, research has been conducted on technologies for vibrating various plate-shaped parts such as parts for electronic devices, window parts for vehicles, and interior parts for transportation equipment such as vehicles to function as speakers. For example, Patent Documents 1 to 5 disclose various structures for transmitting the vibration of an electric vibration exciter (vibrator) to a vibration plate such as a glass plate.

[0003] Patent Document 1 discloses a structure in which a bottom plate, a base, and an attachment member are sequentially stacked on a main surface of a glass plate, the bottom plate and the base are fixed by a plastic portion covering a portion of the glass plate, and a vibrator is connected to the attachment member on the fixed base.

[0004] Patent Document 1: International Publication No. 2021 / 229179

[0005] Patent Document 2: International Publication No. 2021 / 229180

[0006] Patent Document 3: International Publication No. 2019 / 172076

[0007] Patent Document 4: Japanese Patent Application Publication No. 2010-263512

[0008] Patent Document 5: Japanese Patent Application Publication No. 2009-100223

[0009] However, the mounting structure for mounting such a vibrator on the glass plate may cause the mounting position to shift due to continuous use of the vibrating vibrator, resulting in a decrease in the sound reproduction quality or the vibrator itself falling off. In addition, in the mounting structure described in Patent Document 1, there are problems such as the structure becoming complicated or it is difficult to stably fit the plastic part on the bottom plate and the base. Summary of the invention

[0010] Therefore, an object of the present invention is to provide a glass vibration plate that can stably mount a vibrator on a glass plate structure and can suppress a reduction in the quality of sound emitted from the glass vibration plate due to positional deviation of the vibrator and the detachment of the vibrator, a glass vibration plate with a vibrator, a method for manufacturing a glass vibration plate, and a method for manufacturing a glass vibration plate with a vibrator.

[0011] The present invention is constituted by the following structure.

[0012] (1) A glass vibration plate, wherein:

[0013] have:

[0014] Glass plate structure;

[0015] A mounting portion, fixed to the glass plate structure;

[0016] a connecting portion mounted on the mounting portion and fixed to a vibrator that vibrates the glass plate structure; and

[0017] The first adhesive layer and the second adhesive layer are arranged between the glass plate structure and the mounting portion.

[0018] The first adhesive layer and the second adhesive layer are made of different materials.

[0019] (2) A glass vibration plate with a vibrator, wherein:

[0020] The present invention comprises the glass vibration plate described in the above (1) and the above-mentioned vibrator.

[0021] (3) A method for manufacturing a glass vibration plate, wherein:

[0022] A first adhesive layer is disposed on a surface of a mounting portion that is fixed to a glass plate structure and to which a connecting portion of a vibrator for vibrating the glass plate structure is mounted,

[0023] The glass plate structure and the mounting portion are bonded together via the first adhesive layer.

[0024] An adhesive serving as a second adhesive layer is injected from an injection port connected to a space provided inside the attachment portion, and the glass sheet structure and the attachment portion are bonded to each other via the second adhesive layer.

[0025] (4) A method for manufacturing a glass vibration plate with a vibrator, wherein:

[0026] After the method for manufacturing a glass diaphragm described in (1) above is implemented, the vibrator is mounted on the mounting portion.

[0027] According to the present invention, the vibrator can be stably mounted on the glass plate structure, and the quality of the sound generated from the glass diaphragm can be reduced or the vibrator can be prevented from falling off due to positional deviation of the vibrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a simplified top view of the glass vibration plate.

[0029] Figure 2 yes Figure 1 A schematic cross-sectional view of the glass diaphragm taken along line II-II is shown.

[0030] Figure 3 It is a perspective view of a mounting portion fixed to a glass plate structure and a vibrator.

[0031] Figure 4A It is a plan view of the side of the mounting portion opposite to the fixing side to the glass plate structure.

[0032] Figure 4B It is a cross-sectional view in the thickness direction of the mounting portion.

[0033] Figure 4C It is a plan view of the fixing side of the mounting portion fixed to the glass plate structure.

[0034] Figure 5 yes Figure 2 A brief cross-sectional view at the V-V line.

[0035] Figure 6 This is a schematic cross-sectional view of a glass diaphragm including a mounting portion having a through hole in a side wall surface.

[0036] Fig. 7A It is a figure explaining the preparation process in the manufacturing method of the glass diaphragm.

[0037] Figure 7B It is a figure explaining the 1st bonding process in the manufacturing method of the glass diaphragm.

[0038] Figure 7C It is a figure explaining the 2nd bonding process in the manufacturing method of the glass diaphragm.

[0039] Fig.7D It is a figure explaining the 2nd bonding process in the manufacturing method of the glass diaphragm.

[0040] Fig. 7E It is a figure explaining the 2nd bonding process in the manufacturing method of the glass diaphragm.

[0041] Fig. 8A It is a schematic cross-sectional view of a glass diaphragm having a mounting portion having one through hole.

[0042] Figure 8B This is a schematic cross-sectional view of a glass diaphragm having a mounting portion having a plurality of mounting holes.

[0043] Fig. 9 This is a schematic cross-sectional view of a glass diaphragm according to Modification 1.

[0044] Fig.10 This is a schematic cross-sectional view of a glass diaphragm according to Modification 2.

[0045] Fig.11 This is a schematic cross-sectional view of a glass diaphragm according to Modification 3.

[0046] Fig.12 This is a schematic cross-sectional view of a glass diaphragm according to Modification 4.

[0047] Fig.13A This is a schematic cross-sectional view of a glass diaphragm according to Modification 5.

[0048] Fig. 13B It is a plan view of the fixing side of the mounting portion of Modification 5 which is fixed to the glass sheet structure.

[0049] Fig.14 This is a schematic cross-sectional view of a glass diaphragm according to Modification 6.

[0050] Fig.15 This is a schematic cross-sectional view of a glass diaphragm according to Modification 7.

[0051] Fig.16 This is a schematic cross-sectional view of a glass diaphragm according to Modification 8.

[0052] Fig.17 It is a top view of the mounting portion for explaining a modified example of the arrangement of the through holes.

[0053] Fig.18 This is a schematic cross-sectional view of a glass diaphragm for explaining a modified example of the second adhesive layer. DETAILED DESCRIPTION

[0054] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The glass vibration plate with a vibrator of this embodiment includes a glass vibration plate and a vibrator for vibrating the glass vibration plate, and can be applied to, for example, vibrating a glass plate for a vehicle. In the following description, an example of applying the glass vibration plate with a vibrator to a window portion such as a side window of a vehicle is described, but the applicable uses are not limited to this.

[0055] <Overall structure of the glass diaphragm>

[0056] Figure 1 It is a schematic plan view of the glass vibration plate 11 . Figure 2 yes Figure 1 The schematic cross-sectional view of the glass vibration plate 11 taken along the line II-II is shown. Figure 3 It is a perspective view of the attachment portion 17 and the vibrator 13 fixed to the glass plate structure 15 .

[0057] like Figure 1 to Figure 3 As shown, the glass diaphragm 11 can mount a vibrator 13 that generates vibration on a main surface of a glass plate structure 15. Specifically, the glass diaphragm 11 includes a glass plate structure 15, a mounting portion 17, and a connecting portion 19.

[0058] <Structure of glass diaphragm with oscillator>

[0059] The glass vibration plate 100 with a vibrator has a structure in which a vibrator 13 is mounted on a glass vibration plate 11. The vibrator 13 is connected and fixed to a connection portion 19, and the connection portion 19 is fixed to a mounting portion 17. The vibrator 13 is fixed to the connection portion 19 by at least one of mechanical fastening methods such as screws, bolts and nuts, rivets, keys, pins, and adhesives. In addition, the vibrator 13 and the connection portion 19 may also be a structure in which they are firmly fixed by different parts, or they may be a structure integrated as the same part. The connection portion 19 is mechanically fixed to the mounting portion 17. The mounting portion 17 is fixed to a first main surface 15a, which is one main surface of the glass plate structure 15. Thus, the vibrator 13 is mounted on the first main surface 15a of the glass plate structure 15 via the connection portion 19 and the mounting portion 17.

[0060] For example, when the glass vibration plate 11 is used as a side window of a vehicle, the vibrator 13 is arranged in an area below the waistline BL, that is, in an area on the frame 16 side of a lifting mechanism (not shown). Thus, the sound generated by the glass plate structure 15 can be supplied to the vehicle interior. The waistline BL corresponds to the lower side of the opening when the side window is fully closed when the side window is mounted on a vehicle (door).

[0061] The vibrator 13 is an excitation device that uses the contacting object as a vibration plate and generates sound from the vibration plate. The glass vibration plate 100 with the vibrator 13 is installed, and the glass vibration plate 11 is vibrated by the driving of the vibrator 13 to generate the desired sound. As the vibrator 13 used here, although the illustration is omitted, an exciter composed of a coil part electrically connected to an external device, a magnetic circuit part, and an excitation part can be listed. According to the exciter, if an electrical signal of sound from an external device is input to the coil part, vibration is generated in the coil part or the magnetic circuit part through the interaction between the coil part and the magnetic circuit part. The vibration of the coil part or the magnetic circuit part is transmitted to the excitation part, and the excitation part vibrates. Among them, the vibrator 13 is attached with a conductive wire (not shown) for driving the vibrator 13.

[0062] <Glass plate structure>

[0063] The glass plate structure 15 constituting the glass vibration plate 11 has a first main surface 15a and a second main surface 15b. Here, although the glass plate structure 15 is exemplified as a single glass plate (single plate glass), it may also be another form such as laminated glass in which an intermediate layer of an intermediate film made of resin, liquid, etc. is sandwiched between a pair of glass plates. The thickness of the glass plate structure 15 is preferably 1 mm or more, more preferably 2 mm or more, and further preferably 3 mm or more. In this way, the strength of the glass plate structure 15 can be made necessary and sufficient.

[0064] <Installation Department>

[0065] The mounting portion 17 can be formed of materials such as metal materials such as aluminum or aluminum alloy, titanium alloy, magnesium alloy, stainless steel, ceramics, glass, resin materials, carbon fiber, and composite materials composed of them. As resin materials, for example, acrylic resins such as polymethyl methacrylate resin (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), polyurethane, polypropylene (PP), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polystyrene (PS), nylon 66, ABS resin, etc. can be listed, which can be formed into a structure with excellent formability. In addition, the above-mentioned materials are more preferably fiber-reinforced plastics containing glass fibers and carbon fibers. By using the above-mentioned materials, cracks will not occur in the mounting portion 17, and sufficient connection strength can be obtained. The mounting portion 17 can be composed of a single material, but it can also be composed of composite materials such as aluminum alloy and stainless steel, or resin materials and stainless steel.

[0066] The mounting portion 17 is formed into a circular shape when the glass plate structure 15 is viewed from above, and is bonded and fixed to the first main surface 15a of the glass plate structure 15. In addition, the outer edge shape of the mounting portion 17 when the glass plate structure 15 is viewed from above is not limited to a circular shape, and may be any shape such as a polygon. In addition, a first adhesive layer 21 and a second adhesive layer 23 are arranged between the glass plate structure 15 and the mounting portion 17, and the mounting portion 17 is bonded and fixed to the first main surface 15a of the glass plate structure 15 through these first adhesive layer 21 and the second adhesive layer 23.

[0067] The mounting portion 17 has a threaded hole 25 on the side opposite to the fixing side to the glass plate structure 15. The connecting portion 19 provided on the vibrator 13 has a threaded shaft 27, and the connecting portion 19 is fastened to the mounting portion 17 by screwing the threaded shaft 27 into the threaded hole 25 of the mounting portion 17 bonded and fixed to the glass plate structure 15.

[0068] In this way, the connection part 19 fixed to the vibrator 13 is mechanically fixed to the mounting part 17 bonded to the glass plate structure 15, and the vibrator 13 is stably mounted on the glass plate structure 15. In addition, by loosening the connection part 19 screwed into the mounting part 17, the vibrator 13 (in this case, the component in which the vibrator 13 and the connection part 19 are fixed) is removed from the glass plate structure 15, so that the vibrator 13 can be easily replaced. In addition, the thread structure of the connection part 19 and the mounting part 17 is not limited to the combination of the connection part 19 having a convex threaded part and the mounting part 17 for screwing it into a concave threaded part, and the connection part 19 may have a concave threaded part and the mounting part 17 for screwing it into a convex threaded part. In addition, the fixing structure of the mounting part 17 and the connection part 19 is not limited to the threaded structure, and for example, it may be a mechanical fastening method such as a rivet, a key, or a pin.

[0069] Figure 4A to Figure 4C 1 is a diagram showing the mounting portion 17. Figure 4A 1 is a plan view of the mounting portion 17 on the side opposite to the fixing side to the glass plate structure 15. Figure 4B is a cross-sectional view of the mounting portion 17 in the thickness direction, Figure 4C It is a plan view of the fixing side of the mounting portion 17 to the glass sheet structure 15 .

[0070] like Figure 4A to Figure 4C As shown in FIG. 1 , the mounting portion 17 has a recessed portion 31 on the fixing side to the glass plate structure 15, and an annular protrusion 35 is provided on the outer side of the recessed portion 31, which is convex from the bottom surface of the recessed portion 31 to the fixing side of the glass plate structure 15. In addition, the mounting portion 17 has a central protrusion 33 in the central part of the fixing side to the glass plate structure 15, which is convex from the bottom surface of the recessed portion 31 to the fixing side of the glass plate structure 15. Here, the central part refers to: when the glass plate structure 15 is viewed from above, the center of gravity of the mounting portion 17 is included, and as shown in FIG. Figure 4B to Figure 4C As shown, the area (portion) surrounded by a circular shape having an outer edge is located outside the outer edge of the threaded hole 25, but it can also be an area (portion) other than the circular shape. Thus, the recess 31 is formed into an annular shape. In addition, the mounting portion 17 has a plurality of (two in this example) through holes 37 that penetrate in the thickness direction in the recess 31. These through holes 37 have a width narrower than the width of the second adhesive layer 23. Among them, the through holes 37 can also penetrate in a direction inclined relative to the mounting portion 17, and can also penetrate in the radial direction relative to the mounting portion 17.

[0071] Figure 5 yes Figure 2 A brief cross-sectional view at the V-V line.

[0072] like Figure 2 as well as Figure 5 As shown, the first adhesive layer 21 is arranged on the central convex portion 33 and the annular convex portion 35 of the mounting portion 17, and the second adhesive layer 23 is arranged on the concave portion 31 of the mounting portion 17. Then, the mounting portion 17 is bonded and fixed to the glass plate structure 15 by these first adhesive layer 21 and second adhesive layer 23. Thus, the mounting portion 17 to which the vibrator 13 or the component in which the connecting portion 19 and the vibrator 13 are integrated can be easily bonded and fixed to the glass plate structure 15 with a simple structure.

[0073] <Adhesive layer>

[0074] The first adhesive layer 21 and the second adhesive layer 23 that adhere and fix the mounting portion 17 to the glass plate structure 15 are made of different materials. One of the first adhesive layer 21 and the second adhesive layer 23, which are made of different materials, is preferably an adhesive layer with excellent workability and good vibration transmission. In this way, the workability of mounting the mounting portion 17 to the glass plate structure 15 can be improved, and the vibration from the vibrator 13 can be smoothly transmitted to the glass plate structure 15, thereby improving the acoustic effect. In addition, the other of the first adhesive layer 21 and the second adhesive layer 23, which are made of different materials, is preferably an adhesive layer with high adhesive force. In this way, the glass plate structure 15 and the mounting portion 17 can be firmly fixed, and the vibrator 13 or the component in which the connecting portion 19 and the vibrator 13 are integrated can be stably mounted on the glass plate structure 15, and the quality of the sound emitted from the glass vibration plate 11 can be reduced due to the positional deviation of the vibrator 13, and the vibrator can be prevented from falling off.

[0075] As the first adhesive layer 21, for example, preferably use an adhesive or adhesive tape that shows adhesiveness in a short time, or a multilayer structure with a substrate portion. As the adhesive or adhesive tape, materials such as acrylic acid, silicone, polyurethane, natural rubber, epoxy silicone, and cyanoacrylate can be used. In addition, as the first adhesive layer 21, moisture-curing adhesives used as instant adhesives, light-curing adhesives cured by ultraviolet rays and visible light, etc. can be used. As such an adhesive, materials such as cyanoacrylate, acrylic acid, epoxy, polyurethane, and epoxy silicone can be used.

[0076] As the second adhesive layer 23, for example, a curing adhesive is preferably used, and as the adhesive, an acrylic acid system, a silicone system, a polyurethane system, an epoxy system, an epoxy silicone system, a vinyl acetate system, a polyvinyl chloride system, a chloroprene rubber system, a nitrile rubber system, a cyanoacrylate system, a synthetic rubber system, an EVA resin system, a polyimide system, a benzene system, etc. adhesive can be used. In addition, as the adhesive, a chemical reaction type adhesive such as a thermosetting, moisture curing, two-liquid mixing curing, ultraviolet curing, visible light curing, anaerobic curing, hot melt adhesives such as hot melt adhesives, ultraviolet heat combined type, ultraviolet moisture curing combined type, ultraviolet anaerobic curing combined type, hot melt adhesive moisture curing combined type, bonding ultraviolet curing type, etc. can be used.

[0077] In addition, the Young's modulus of the second adhesive layer 23 is 1×10 5 Pa or more. Thus, the vibration from the vibrator 13 can be smoothly transmitted to the glass plate structure 15, and a strong fixing strength of the mounting portion 17 to the glass plate structure 15 can be obtained. Among them, the Young's modulus of the second adhesive layer 23 is preferably 1×10 9 Pa or less, more preferably 1×108 Below Pa.

[0078] In addition, the Young's modulus in this specification refers to a value measured using an autograph or a rheometer based on JIS K7161:2014 "Plastics-Test methods for tensile properties".

[0079] In addition, when the surface area of ​​the first adhesive layer 21 in contact with the glass plate structure 15 is S1, and the surface area of ​​the second adhesive layer 23 in contact with the glass plate structure 15 is S2, it is preferable that S1:S2 satisfies a ratio in the range of 1:0.01 to 1:100. In this way, the surface areas of the first adhesive layer 21 and the second adhesive layer 23 in contact with the glass plate structure 15 can be set to an appropriate ratio, and the mounting portion 17 can be well bonded to the glass plate structure 15 through the first adhesive layer 21 and the second adhesive layer 23. In addition, from the viewpoint of ensuring vibration transmission and fixing strength, S1:S2 is preferably a large area, more preferably a ratio in the range of 1:0.05 to 1:20, and further preferably a ratio in the range of 1:0.1 to 1:10.

[0080] In addition, in the glass vibration plate 11 according to the present structural example, the first adhesive layer 21 and the second adhesive layer 23 are in contact with both the glass plate structure 15 and the mounting portion 17. Therefore, the glass plate structure 15 and the mounting portion 17 can be fixed in a short time by the first adhesive layer 21, and the glass plate structure 15 and the mounting portion 17 can be fixed for a long time with a strong fixing strength by the second adhesive layer 23.

[0081] The first adhesive layer 21 and the second adhesive layer 23 have portions that are in contact with each other in a direction along the first main surface 15a of the glass plate structure 15. This reduces the gap between the first adhesive layer 21 and the second adhesive layer 23, thereby improving the bonding strength.

[0082] Furthermore, the first adhesive layer 21 is disposed on the central convex portion 33 and the annular convex portion 35 of the mounting portion 17, and the second adhesive layer 23 is disposed on the concave portion 31 of the mounting portion 17. Therefore, when the glass plate structure 15 is viewed from above, the first adhesive layer 21 disposed on the annular convex portion 35 of the mounting portion 17 is disposed on the outside of the second adhesive layer 23 with respect to the center of gravity G of the mounting portion 17 (see FIG. Figure 5). Thus, the mounting portion 17 can be fixed to the glass plate structure 15 in a balanced manner. In addition, when the glass plate structure 15 is viewed from above, the first adhesive layer 21 disposed at a position outside the second adhesive layer 23 can also be disposed so as to be exposed to the outside than the mounting portion 17. In this way, by making the first adhesive layer 21 exposed to the outside than the mounting portion 17, for example, when an adhesive tape is used as the first adhesive layer 21, the portion exposed to the outside is provided as the peeling amount when peeling off the release paper, so that the reduction in yield in the release paper peeling process can be reduced.

[0083] The first adhesive layer 21 disposed outside the second adhesive layer 23 is disposed in a closed loop shape surrounding the second adhesive layer 23 (see Figure 5 ). Thus, the second adhesive layer 23 can be protected by surrounding it with the first adhesive layer 21, thereby improving the durability of the adhesive fixing portion based on the second adhesive layer 23. In addition, for example, when a liquid or gel adhesive is used as the second adhesive layer 23, the adhesive that becomes the second adhesive layer 23 can be filled and arranged on the inner side of the first adhesive layer 21 without leaking out in a state where the mounting portion 17 is bonded to the glass plate structure 15 through the first adhesive layer 21. In this case, the adhesive that becomes the second adhesive layer 23 can also be leaked to the outside of the first adhesive layer 21 by intentionally providing a through hole, etc., thereby increasing the bonding area between the glass plate structure 15 and the adhesive, thereby improving the bonding strength between the glass plate structure 15 and the mounting portion 17. In addition, a moisture-curing adhesive can also be used for the second adhesive layer 23, in which case the curing time can also be shortened.

[0084] Figure 6 FIG. 1 is a schematic cross-sectional view of a glass vibration plate 11 having a mounting portion 17 having a through hole 37 on a side wall surface. Figure 6As shown, a through hole 37 may be formed on the side wall surface of the mounting portion 17, and the adhesive forming the second adhesive layer 23 may be filled from one through hole 37 serving as an injection port. In this way, even if the adhesive accidentally leaks out from the other through hole 37 serving as an injection port, or is intentionally caused to leak out, the adhesive can be prevented from adhering to the upper surface of the mounting portion 17. That is, the adhesive can be filled without adhering to the upper surface of the mounting portion 17, which serves as the mounting surface of the connecting portion 19 fixed to the vibrator 13. Thus, it is prevented that an unexpected unevenness is formed on the upper surface of the mounting portion 17 due to the adhesion of the adhesive of the second adhesive layer 23 leaking from the through hole 37, and the connecting portion 19 can be attached to the mounting portion 17 in close contact. Therefore, the vibration of the vibrator 13 can be transmitted to the glass plate structure 15 more effectively via the mounting portion 17. In addition, the through hole 37 serving as an injection port may be formed at a plurality of locations, and the through hole 37 serving as an injection port may be formed at a plurality of locations. Furthermore, the height position of the through hole 37 formed in the side wall surface is not limited to the upper part of the mounting portion, but can be set at any position.

[0085] In addition, the second adhesive layer 23 is thicker than the first adhesive layer 21. Therefore, for example, if an adhesive tape is used as the first adhesive layer 21 and a curing adhesive with high adhesive strength is used as the second adhesive layer 23, the second adhesive layer 23 which is thicker than the first adhesive layer 21 improves the adhesive strength of the mounting portion 17 to the glass plate structure 15.

[0086] In addition, the first adhesive layer 21 has a portion disposed at the central protrusion 33 of the mounting portion 17, and when the glass plate structure 15 is viewed from above, this portion is disposed in the central region including the center of gravity G of the mounting portion 17. Thus, the central region including the center of gravity G of the mounting portion 17 can be well bonded to the glass plate structure 15 via the first adhesive layer 21.

[0087] Moreover, the glass vibration plate 11 of this structural example is not limited to the side windows of vehicles such as automobiles, but can also be applied to front windshields, rear windows, sunroofs, front triangular windows, rear triangular windows, etc. As a result, it can make a great contribution to a stereo system composed of a glass vibration plate 11 and an existing speaker, a noise cancellation system that cancels out noise from outside the vehicle by applying sound waves with opposite phases, and a reflection control system that cancels out the echo of music in the vehicle. In addition, in addition to vehicle windows, it can also be applied to building windows, structural components, and decorative panels, and can also be used as a vibration plate component of a flat speaker.

[0088] <Method for manufacturing glass diaphragm>

[0089] Next, a method for manufacturing the glass diaphragm 11 according to this configuration example will be described. In the following description, an example is given in which an adhesive tape is used as the first adhesive layer 21 and a curable liquid or gel adhesive is used as the second adhesive layer 23 .

[0090] Figure 7A to Figure 7E The diagrams are for explaining each step in the method for manufacturing the glass diaphragm 11 .

[0091] (Preparation process)

[0092] like Fig. 7A As shown, the first adhesive layer 21 is disposed on the surface of the mounting portion 17 facing the glass plate structure 15. Specifically, an adhesive tape serving as the first adhesive layer 21 is attached to the central convex portion 33 and the annular convex portion 35 of the mounting portion 17.

[0093] (First bonding step)

[0094] like Figure 7B As shown, the first adhesive layer 21 side is brought toward the mounting portion 17 of the glass plate structure 15 and approaches the first main surface 15a of the glass plate structure 15, and the first adhesive layer 21 is brought into close contact with the predetermined mounting position of the vibrator 13 in the glass plate structure 15. Thus, the glass plate structure 15 and the mounting portion 17 are bonded via the first adhesive layer 21 composed of an adhesive tape. At this time, an adhesive tape is used as the first adhesive layer 21, so that the mounting portion 17 can be positioned and fixed at the predetermined mounting position of the vibrator 13 in the glass plate structure 15 without waiting for curing time and without dripping. In this way, when the mounting portion 17 is bonded to the first main surface 15a of the glass plate structure 15 via the first adhesive layer 21, an annular space 39 communicating with the through hole 37 is formed on the glass plate structure 15 side of the mounting portion 17 by the glass plate structure 15, the first adhesive layer 21, and the recessed portion 31 of the mounting portion 17.

[0095] (Second bonding step)

[0096] like Figure 7CAs shown, one of the through holes 37 of the mounting portion 17 is used as an injection port, and the other is used as an outlet. Then, the liquid or gel adhesive 23L that becomes the second adhesive layer 23 is injected from the through hole 37 that serves as the injection port, and the adhesive 23L is filled into the annular space 39 formed on the glass plate structure 15 side of the mounting portion 17. Thus, the adhesive 23L is smoothly filled into the annular space 39 from the through hole 37 having a width narrower than the width of the second adhesive layer 23 formed by the adhesive 23L. If the shear viscosity of the liquid or gel adhesive 23L is too high, the resistance during filling is too large, and the injection process requires a long time. As the upper limit of the shear viscosity, within the range of the shear rate of 0.1 to 100 [1 / sec], it is preferably 1 MPa·s or less, more preferably 100 kPa·s or less, and further preferably 10 kPa·s or less, and there is no lower limit.

[0097] like Fig.7D As shown, the adhesive 23L is fed into the entire space 39 while spreading toward the annular space 39. At this time, the air inside the space 39 is fed to the outside from the outlet formed by the other through hole 37 due to the filled adhesive 23L. Therefore, the adhesive 23L injected from the through hole 37 as the injection port can be smoothly filled into the space 39. Among them, the adhesive 23L filled in the space 39 is filled from the lower side due to gravity. Therefore, if the mounting portion 17 is arranged on the upper part of the glass plate structure 15 with the first main surface 15a facing upward, and the adhesive 23L is filled using one of the through holes 37 arranged on the upper side as the injection port, the adhesive 23L can be filled into the space 39 without a gap. At this time, the outer periphery of the space 39 is closed by the annular first adhesive layer 21 bonded to the first main surface 15a of the glass plate structure 15, so that the liquid or gel adhesive 23L that becomes the second adhesive layer 23 can be smoothly filled into the interior of the space 39 without leaking out. In addition, the adhesive 23L can also be deliberately leaked to the outside of the space 39 as described above and bonded to the glass plate structure 15.

[0098] like Fig. 7E As shown in FIG. 1 , when the adhesive 23L is filled in the entire space 39, the adhesive 23L enters the through hole 37 serving as the outlet. At this time, if the adhesive 23L forming the second adhesive layer 23 can be visually confirmed in the through hole 37 serving as the outlet, the filling state of the adhesive 23L in the space 39 on the glass plate structure 15 side of the mounting portion 17 can be easily confirmed.

[0099] Next, when the adhesive 23L filled in the space 39 of the mounting portion 17 on the glass plate assembly 15 side is cured, the mounting portion 17 together with the first adhesive layer 21 is bonded and fixed to the glass plate assembly 15 via the second adhesive layer 23 composed of the cured adhesive 23L.

[0100] Then, when the connection portion 19 is fixed to the mounting portion 17 and the vibrator 13 is mounted, the glass diaphragm 100 with a vibrator including the vibrator 13 can be obtained.

[0101] In addition, if Fig. 8A As shown, the mounting portion 17 may include only one through hole 37. When the mounting portion 17 is bonded to the glass plate structure 15, in the step of filling the adhesive 23L that will become the second adhesive layer 23 (second bonding step), the adhesive 23L that will become the second adhesive layer 23 is filled into the space 39 from the through hole 37 using the one through hole 37 as an injection port. In this case, before filling the adhesive 23L, it is preferable to depressurize the inside of the space 39 using a vacuum pump or the like. In this way, by depressurizing the inside of the space 39, the adhesive 23L can be smoothly injected from the one through hole 37 and filled into the entire space 39.

[0102] In addition, if Figure 8B As shown, the mounting portion 17 may have a plurality of mounting holes 55 on the side opposite to the fixing side to the glass plate structure 15. When the mounting portion 17 has a plurality of mounting holes 55, the connecting portion 19 provided on the vibrator 13 also has a plurality of protrusions 57 corresponding to the plurality of mounting holes 55, and the plurality of protrusions 57 are engaged with the plurality of mounting holes 55, so that the connecting portion 19 can be firmly fastened by the mounting portion 17. Examples of the protrusions 57 include fastening members such as rivets, pins, keys, and bolts.

[0103] Alternatively, an adhesive that expands during curing may be used as the adhesive 23L. In this case, the adhesive 23L injected into the space 39 from one through hole 37 expands inside the space 39 to fill the entire space 39.

[0104] In addition, the mounting portion 17 may also be configured without the through hole 37. When using the mounting portion 17, an adhesive tape forming the first adhesive layer 21 is attached to the central convex portion 33 and the annular convex portion 35 of the mounting portion 17, and a high-viscosity gel adhesive 23L is filled into the annular concave portion 31 of the mounting portion 17. Then, the mounting portion 17 is brought close to the first main surface 15a of the glass plate structure 15 and is brought into close contact with the intended mounting position of the vibrator 13 in the glass plate structure 15, and the glass plate structure 15 and the mounting portion 17 are bonded via the first adhesive layer 21 formed of the adhesive tape. Then, the adhesive 23L is cured to form the second adhesive layer 23, and the mounting portion 17 is bonded and fixed to the glass plate structure 15 via the first adhesive layer 21 and the second adhesive layer 23.

[0105] In the above-mentioned manufacturing method, an adhesive tape may be used as the second adhesive layer 23, and a liquid or gel adhesive may be used as the first adhesive layer 21. In this case, the mounting portion 17 and the glass plate structure 15 are bonded to each other through the second adhesive layer 23 composed of the adhesive tape, and then the liquid or gel adhesive is filled from the outer peripheral side of the mounting portion 17 into the gap between the glass plate structure 15 and the mounting portion 17. In this case, it is preferred that the first adhesive layer 21 composed of the adhesive tape is arranged on the central protrusion 33 of the mounting portion 17.

[0106] Furthermore, in the above-described configuration example, the case where the mounting portion 17 is circular in plan view is used, but the mounting portion 17 may be polygonal in plan view, such as a triangle or a quadrilateral.

[0107] The fixing structure of the glass plate structure 15 and the attachment portion 17 in the glass diaphragm 11 of the present structural example described above is an example, and can be changed to various structures.

[0108] Hereinafter, a modification of the fixing structure of the glass plate structure 15 and the attachment portion 17 will be described. In the following description, the same or corresponding parts or components are denoted by the same or corresponding reference numerals to omit duplicate descriptions.

[0109] (Variant 1)

[0110] Fig. 9 This is a schematic cross-sectional view of the glass diaphragm 11 according to Modification 1.

[0111] like Fig. 9 As shown in FIG. 1 , in the glass vibrating plate 11 of Modification 1, the recess 31 formed on the fixing side of the mounting portion 17 to be fixed to the glass plate structure 15 is circular. That is, the mounting portion 17 has only the annular convex portion 35 without the central convex portion 33 on the fixing side to be fixed to the glass plate structure 15. Furthermore, the mounting portion 17 is provided with the second adhesive layer 23 in the circular recess 31 on the fixing side to be fixed to the glass plate structure 15. In Modification 1, the mounting portion 17 is firmly bonded and fixed to the glass plate structure 15 in the central region thereof by the second adhesive layer 23.

[0112] (Variant 2)

[0113] Fig.10 It is a schematic cross-sectional view of the glass diaphragm 11 according to the second modification.

[0114] like Fig.10As shown, the glass vibration plate 11 of the second modification includes a mounting portion 17 having a circular recess 31 on the fixing side to the glass plate structure 15. In addition, the mounting portion 17 has an annular wall portion 41 protruding toward the fixing side to the glass plate structure 15 between the recess 31 and the annular protrusion 35 throughout the circumferential direction.

[0115] In the glass diaphragm 11 of this modification 2, the concave portion 31 where the second adhesive layer 23 is disposed is surrounded by the annular wall portion 41. Therefore, when the concave portion 31 is filled with the adhesive 23L that becomes the second adhesive layer 23, the adhesive 23L is better blocked and does not leak out, thereby preventing the adhesive 23L from being wasted.

[0116] (Variant 3)

[0117] Fig.11 This is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 3.

[0118] like Fig.11 As shown, the glass vibration plate 11 of the modification example 3 includes a mounting portion 17 having a circular recessed portion 31 on the fixing side to be fixed to the glass plate structure 15. In addition, the mounting portion 17 has the first adhesive layer 21 disposed on the inner peripheral surface and the bottom surface of the annular protrusion 35 and the recessed portion 31. In addition, the second adhesive layer 23 is disposed in the recessed portion 31 of the mounting portion 17 having the first adhesive layer 21 disposed on the inner peripheral surface and the bottom surface. Thus, in the recessed portion 31 of the mounting portion 17, the first adhesive layer 21 and the second adhesive layer 23 overlap in the thickness direction. In this modification example 3, the mounting portion 17 is also firmly bonded and fixed to the glass plate structure 15 in the central region by the second adhesive layer 23.

[0119] (Variant 4)

[0120] Fig.12 This is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 4.

[0121] like Fig.12 As shown, in the glass vibration plate 11 of modification 4, the fixing side of the mounting portion 17 fixed to the glass plate structure 15 is a flat surface. In addition, on the surface of the fixing side of the mounting portion 17 fixed to the glass plate structure 15, a first adhesive layer 21 is arranged in an annular portion along the outer edge, and a second adhesive layer 23 is arranged inside the first adhesive layer 21, and these first adhesive layer 21 and second adhesive layer 23 have substantially the same thickness.

[0122] In the glass diaphragm 11 of this modification 4, the central region of the mounting portion 17 is also firmly bonded and fixed to the glass plate structure 15 by the second adhesive layer 23. In the modification 4, the surface of the mounting portion 17 on the fixing side to the glass plate structure 15 is a flat surface, so the mounting portion 17 can be easily formed.

[0123] (Variant 5)

[0124] Fig.13A This is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 5. Fig. 13B This is a plan view of the attachment portion 17 used in Modification 5, as seen from the fixing side to the glass sheet structure 15 .

[0125] like Fig.13A as well as Fig. 13B As shown, in the glass vibration plate 11 of the modification 5, the mounting portion 17 is formed with a partition wall 43 on the fixing side to be fixed to the glass plate structure 15. Moreover, the mounting portion 17 divides the recess 31 into two regions 31a to which the through holes 37 communicate, respectively, by the partition wall 43. Thus, the second adhesive layer 23 has two layers 23a filled with the adhesive 23L in each region 31a of the recess 31. In addition, the partition wall 43 has a connecting groove 43a on the fixing side to be fixed to the glass plate structure 15. Thus, each region 31a of the recess 31 is connected to each other through the connecting groove 43a, and the connecting groove 43a is also filled with the adhesive 23L that becomes the second adhesive layer 23.

[0126] In the glass diaphragm 11 of this modification 5, the annular convex portion 35 and the partition wall 43 of the mounting portion 17 are bonded to the first main surface 15a of the glass plate structure 15 via the adhesive tape serving as the first adhesive layer 21. Thus, on the glass plate structure 15 side of the mounting portion 17, two spaces communicating with the through hole 37 are formed by the glass plate structure 15, the first adhesive layer 21, and each region 31a of the recessed portion 31 of the mounting portion 17. Furthermore, when the mounting portion 17 is bonded to the glass plate structure 15 via the first adhesive layer 21, a hole portion constituted by the connecting groove 43a of the partition wall 43 is formed on the glass plate structure 15 side of the mounting portion 17, and the spaces of each region 31a are communicated through the hole portion. Therefore, when the adhesive 23L that will become the second adhesive layer 23 from one through hole 37 is filled into the space of one region 31a, the adhesive 23L is filled into the space of the other region 31a through the hole portion formed by the connecting groove 43a and enters the other through hole 37. Thus, the mounting portion 17 is firmly fixed to the glass plate structure 15 through the first adhesive layer 21 and the second adhesive layer 23 formed of the two layers 23a. Fig. 13B In FIG. 1 , the case where the partition wall 43 has only one connection groove 43 a is shown, but the partition wall 43 may have two or more connection grooves.

[0127] (Variant 6)

[0128] Fig.14 This is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 6.

[0129] like Fig.14 As shown in FIG. 1 , in the glass vibrating plate 11 of Modification 6, the mounting portion 17 has an enlarged diameter portion 45 whose diameter is enlarged on the fixing side to be fixed to the glass plate structure 15. Thus, the mounting portion 17 has a step 45a toward the glass plate structure 15. When the glass plate structure 15 is viewed from above, the area of ​​the mounting portion 17 on the glass plate structure 15 side is wider than the area of ​​the mounting portion 17 on the side away from the glass plate structure 15.

[0130] In the glass diaphragm 11 of this modification 6, the area of ​​the fixing side of the mounting portion 17 to the glass plate structure 15 is increased, and the bonding strength of the mounting portion 17 to the glass plate structure 15 by the first adhesive layer 21 and the second adhesive layer 23 is increased.

[0131] In addition, in the glass vibration plate 11 of modification example 6, the fixed side of the mounting portion 17 fixed to the glass plate structure 15 is formed to have a step 45a by enlarging the diameter, but the mounting portion 17 may be in the shape of a truncated cone that gradually enlarges the diameter toward the glass plate structure 15. In this case, the area of ​​the fixed side of the mounting portion 17 fixed to the glass plate structure 15 can also be widened.

[0132] (Variant 7)

[0133] Fig.15 It is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 7.

[0134] like Fig.15 As shown, in the glass vibration plate 11 of the modification 7, when the glass plate structure 15 is observed in cross section, the mounting portion 17 has an arm portion 47 formed in a U shape at a part of its outer peripheral portion, and the through hole 37 is formed in the arm portion 47. The arm portion 47 of the mounting portion 17 is opposite to the end surface 15c connecting the first main surface 15a and the second main surface 15b of the glass plate structure 15, and is opposite to the second main surface 15b of the glass plate structure 15.

[0135] Furthermore, in the glass vibration plate 11 of Modification 7, the portion of the arm portion 47 of the mounting portion 17 that faces the second principal surface 15b of the glass plate structure 15 is bonded and fixed to the second principal surface 15b via the first adhesive layer 21 and the second adhesive layer 23. Therefore, the mounting portion 17 is bonded and fixed to both the first principal surface 15a and the second principal surface 15b of the glass plate structure 15, thereby improving the fixing strength of the mounting portion 17 to the glass plate structure 15.

[0136] Furthermore, in the glass vibration plate 11 of the modification 7, the portion of the arm portion 47 of the mounting portion 17 that faces the end surface 15c of the glass plate structure 15 is in contact with the end surface 15c via the second adhesive layer 23. Therefore, the second adhesive layer 23 is in contact with the first principal surface 15a, the second principal surface 15b, and the end surface 15c of the glass plate structure 15. Thus, the mounting portion 17 is bonded and fixed not only to the first principal surface 15a and the second principal surface 15b, but also to the end surface 15c via the second adhesive layer 23, and the fixing strength with respect to the glass plate structure 15 is further improved.

[0137] Fig.16 This is a schematic cross-sectional view of a glass diaphragm 11 according to Modification 8.

[0138] like Fig.16 As shown, in the glass vibration plate 11 of the modification 8, a through hole 15d is formed in the glass plate structure 15, and the mounting portion 17 is fixed to the glass plate structure 15 by passing through the through hole 15d. The mounting portion 17 is composed of split bodies 18A and 18B split toward the first main surface 15a side and the second main surface 15b side of the glass plate structure 15. Moreover, the mounting portion 17 is mounted on the glass plate structure 15, one split body 18A is mounted from the first main surface 15a side, and the other split body 18B is mounted from the second main surface 15b side, and penetrates the through hole 15d and is joined to each other. In this way, the mounting portion 17 is composed of the split bodies 18A and 18B, and has a through portion 17a that penetrates the through hole 15d of the glass plate structure 15. These split bodies 18A and 18B are mechanically joined to each other by fastening to each other by a screw structure, rivet, etc. (not shown).

[0139] Furthermore, in the glass diaphragm 11 of Modification 8, the portion of the mounting portion 17 composed of the split bodies 18A and 18B, namely the split body 18A, which is opposed to the first principal surface 15a of the glass plate structure 15, is bonded and fixed to the first principal surface 15a via the first adhesive layer 21 and the second adhesive layer 23. Furthermore, the portion of the mounting portion 17, namely the split body 18B, which is opposed to the second principal surface 15b of the glass plate structure 15, is bonded and fixed to the second principal surface 15b via the first adhesive layer 21 and the second adhesive layer 23. Therefore, the mounting portion 17 is bonded and fixed to both the first principal surface 15a and the second principal surface 15b of the glass plate structure 15, and the fixing strength of the mounting portion 17 to the glass plate structure 15 is improved.

[0140] Furthermore, in the glass vibration plate 11 of the modification 8, the second adhesive layer 23 is arranged between the through hole 15d of the glass plate structure 15 and the through portion 17a of the mounting portion 17 that penetrates the through hole 15d. Thus, the mounting portion 17 is bonded and fixed not only to the first main surface 15a and the second main surface 15b but also to the end surface constituted by the inner peripheral surface of the through hole 15d by the second adhesive layer 23, thereby further improving the fixing strength with respect to the glass plate structure 15.

[0141] In this modification 8, since the mounting portion 17 passes through the through hole 15d of the glass plate structure 15, the vibrator 13 can be stably mounted on the glass plate structure 15. In particular, in this modification 8, the worry that the mounting portion 17 will peel off from the glass plate structure 15 is very low. In addition, the mounting portion 17 can also be given an antenna or radar function that allows radio waves to pass through the through hole 15d of the glass plate structure 15. In addition, a temperature sensor, a humidity sensor, an acceleration sensor, a rain sensor, a pressure sensor, etc. can be provided on the mounting portion 17, and various information can be fed back to the car from the mounting portion 17.

[0142] Thus, the present invention is not limited to the above-mentioned embodiments, and the mutual combination of the various structures of the embodiments, the changes and applications made by those skilled in the art based on the description in the specification and the known technology are also the intended parts of the present invention and are included in the scope of protection required.

[0143] For example, in Figure 2 , Fig. 9 In the figures for explaining the above-mentioned structural examples and modified examples, when the mounting portion 17 has two through holes 37, the through holes 37 are arranged symmetrically with respect to the central axis of the mounting portion 17 when the glass plate structure 15 is viewed from above, but the present invention is not limited to this arrangement. Fig.17 As shown, one through hole 37 may be arranged at a position farther from the central axis than another through hole 37. In this case, the through hole 37 serving as the injection port is arranged at a position away from the wall surface of the space 39 formed by the mounting portion 17, so that when the adhesive to be the second adhesive layer 23 is injected into the space 39, the resistance from the wall surface is reduced, and the injection of the adhesive becomes easy. On the other hand, if the through hole 37 serving as the injection port is arranged near the wall surface of the mounting portion 17, it is easy to fill the injected adhesive to the wall surface of the mounting portion 17. In addition, the cross-sectional shape, cross-sectional area, etc. of the plurality of through holes 37 may be different from each other.

[0144] In the above-mentioned structural examples and modified examples, the case where the adhesive forming the second adhesive layer 23 completely fills the space 39 is described. Fig.18As shown, the adhesive may not be completely filled in the space 39, so that an air layer 51 is formed in at least a portion between the wall surface of the mounting portion 17 and the second adhesive layer 23. In this case, for example, if a moisture-curing adhesive is used as the adhesive, the curing of the portion of the adhesive in contact with the air layer 51 is promoted, and the uncured portion is reduced, which is preferred.

[0145] As described above, the following matters are disclosed in this specification.

[0146] (1) A glass vibration plate, wherein:

[0147] have:

[0148] Glass plate structure;

[0149] A mounting portion, fixed to the glass plate structure;

[0150] a connecting portion mounted on the mounting portion and fixed to a vibrator that vibrates the glass plate structure; and

[0151] The first adhesive layer and the second adhesive layer are arranged between the glass plate structure and the mounting portion.

[0152] The first adhesive layer and the second adhesive layer are made of different materials.

[0153] According to the glass diaphragm of this structure, the glass plate structure and the mounting portion to which the connecting portion fixed to the oscillator is mounted can be easily fixed with a simple structure by the first adhesive layer and the second adhesive layer disposed between the glass plate structure and the mounting portion.

[0154] In addition, if one of the first adhesive layer and the second adhesive layer, which are made of different materials, is an adhesive layer with excellent operability and good vibration transmission, the workability of mounting the mounting portion to the glass plate structure is improved, and the vibration from the vibrator can be smoothly transmitted to the glass plate structure, thereby improving the acoustic effect. In addition, if the other of the first adhesive layer and the second adhesive layer, which are made of different materials, is an adhesive layer with high adhesive force, the glass plate structure and the mounting portion can be firmly fixed, and the vibrator or the component in which the connecting portion and the vibrator are integrated can be stably mounted on the glass plate structure, and the quality of the sound emitted from the glass vibration plate can be reduced due to the positional deviation of the vibrator, and the vibrator can be prevented from falling off.

[0155] (2) The glass diaphragm according to (1), wherein:

[0156] The first adhesive layer and the second adhesive layer are in contact with both the glass plate structure and the attachment portion.

[0157] According to the glass diaphragm having this structure, the attachment portion can be satisfactorily fixed to the glass plate structure by the first adhesive layer and the second adhesive layer that are in contact with both the glass plate structure and the attachment portion.

[0158] (3) The glass diaphragm according to (1) or (2), wherein:

[0159] The first adhesive layer and the second adhesive layer have portions in contact with each other.

[0160] According to the glass diaphragm of this structure, since the first adhesive layer and the second adhesive layer have a portion in contact with each other, the gap between the first adhesive layer and the second adhesive layer is reduced, and the bonding strength is improved.

[0161] (4) The glass diaphragm according to any one of (1) to (3), wherein:

[0162] When the glass sheet structure is viewed in a plan view, the first adhesive layer has a portion disposed on the outer side than the second adhesive layer with respect to the center of gravity of the attachment portion.

[0163] According to the glass diaphragm of this structure, the attachment portion can be well and well fixed to the glass plate structure by the second adhesive layer and the first adhesive layer arranged outside the second adhesive layer based on the center of gravity of the attachment portion when the glass plate structure is viewed from above.

[0164] (5) The glass diaphragm according to (4), wherein:

[0165] The first adhesive layer has a portion disposed outside the attachment portion when the glass sheet structure is viewed in a plan view.

[0166] According to the glass diaphragm of this structure, since the first adhesive layer has a portion arranged outside the attachment portion, the attachment portion can be sufficiently bonded and fixed to the glass plate structure.

[0167] (6) The glass vibration plate according to (4) or (5), wherein:

[0168] The first adhesive layer is arranged in a closed loop surrounding the second adhesive layer when the glass sheet structure is viewed in a plan view.

[0169] According to the glass vibration plate of this structure, since the first adhesive layer is arranged in a closed loop shape surrounding the second adhesive layer when the glass plate structure is viewed from above, the second adhesive layer can be surrounded by the first adhesive layer to protect it, thereby improving the durability of the adhesive fixing part by the second adhesive layer. In addition, for example, in a state where the mounting part is bonded to the glass plate structure by the first adhesive layer, the second adhesive layer can be arranged to fill the inner side of the first adhesive layer without leaking out.

[0170] (7) The glass diaphragm according to any one of (1) to (6), wherein

[0171] The second adhesive layer is thicker than the first adhesive layer.

[0172] According to the glass diaphragm of this structure, the bonding strength of the attachment portion to the glass plate structure is improved by the second adhesive layer which is thicker than the first adhesive layer.

[0173] (8) The glass diaphragm according to any one of (1) to (7), wherein:

[0174] The first adhesive layer is disposed in a central region including the center of gravity of the attachment portion when the glass sheet structure is viewed in a plan view.

[0175] According to the glass diaphragm of this structure, when the glass plate structure is viewed in plan, the central region including the center of gravity of the attachment portion can be well bonded to the glass plate structure by the first adhesive layer.

[0176] (9) The glass diaphragm according to any one of (1) to (8), wherein

[0177] The mounting portion has at least one through hole.

[0178] According to the glass diaphragm of this structure, at least one of the adhesive to be the first adhesive layer and the adhesive to be the second adhesive layer can be filled between the glass plate structure and the attachment portion from the through hole of the attachment portion.

[0179] (10) The glass diaphragm according to (9), wherein:

[0180] The mounting portion has a plurality of through holes in contact with the second adhesive layer.

[0181] According to the glass vibration plate of this structure, the adhesive forming the second adhesive layer can be filled from the through hole of the mounting portion to the space between the glass plate structure and the mounting portion. In addition, since the mounting portion has a plurality of through holes, when the adhesive forming the second adhesive layer is filled from any through hole, the other through holes become exhaust holes, and the adhesive can be filled smoothly.

[0182] (11) The glass diaphragm according to (10), wherein:

[0183] The at least one through hole is formed on a side wall surface of the mounting portion that is different from a surface on which the connecting portion is mounted.

[0184] According to the glass vibration plate of this structure, the through hole of the side wall surface of the mounting part different from the surface on which the connecting part is mounted can be formed as an outlet for the adhesive. As a result, it is possible to suppress the adhesive leaking out when filling between the glass plate structure and the mounting part from adhering to the surface of the mounting part that becomes the mounting surface of the connecting part. Therefore, it is possible to prevent the adhesive from adhering to form unevenness on the surface of the mounting part that becomes the mounting surface of the connecting part, so that the connecting part is closely mounted on the mounting part. As a result, the vibration of the oscillator can be better transmitted to the glass plate structure via the mounting part.

[0185] (12) The glass diaphragm according to any one of (9) to (11), wherein

[0186] The through hole extends in a thickness direction of the glass sheet structure.

[0187] According to the glass diaphragm of this structure, the adhesive can be smoothly filled from the through hole of the attachment portion extending in the thickness direction of the glass plate structure.

[0188] (13) The glass diaphragm according to any one of (9) to (12), wherein:

[0189] The through hole has a width narrower than a width of the second adhesive layer.

[0190] According to the glass diaphragm having this structure, the adhesive to be the second adhesive layer can be smoothly filled from the through-hole having a width narrower than the width of the second adhesive layer.

[0191] (14) The glass diaphragm according to any one of (9) to (13), wherein

[0192] The second adhesive layer includes: a plurality of layers that are in contact with the glass plate structure and are separated from each other; and a portion that connects the plurality of layers and fills the connection groove.

[0193] According to the glass diaphragm of this structure, the attachment portion can be bonded and fixed to the glass plate structure by the second adhesive layer having a plurality of layers.

[0194] (15) The glass diaphragm according to any one of (1) to (14), wherein:

[0195] The Young's modulus of the second adhesive layer is 1×10 5 Pa or above.

[0196] According to the glass vibration plate of this structure, since the Young's modulus of the second adhesive layer is 1×10 5 Pa or more, the acoustic vibration from the vibrator can be well transmitted via the mounting portion.

[0197] (16) The glass diaphragm according to any one of (1) to (15), wherein:

[0198] When the surface area of ​​the first adhesive layer in contact with the glass plate structure is S1, and the surface area of ​​the second adhesive layer in contact with the glass plate structure is S2,

[0199] S1:S2 satisfies the range of 1:0.01 to 1:100.

[0200] According to the glass diaphragm of this structure, the surface areas of the first adhesive layer and the second adhesive layer in contact with the glass plate structure can be adjusted to an appropriate ratio, and the attachment portion can be well bonded to the glass plate structure by the first adhesive layer and the second adhesive layer.

[0201] (17) The glass diaphragm according to any one of (1) to (16), wherein

[0202] When the glass sheet structure is viewed in a plan view, an area of ​​the attachment portion on the glass sheet structure side is larger than an area of ​​the attachment portion on a side away from the glass sheet structure.

[0203] According to the glass diaphragm of this structure, the area of ​​the fixing side of the mounting portion to the glass plate assembly is widened, and the bonding strength of the mounting portion to the glass plate assembly by the first adhesive layer and the second adhesive layer is increased.

[0204] (18) The glass vibration plate according to (17), wherein

[0205] The attachment portion has a step toward the glass plate structure.

[0206] According to the glass vibration plate of this structure, by providing a step on the mounting portion toward the glass plate structure, it is easy to widen the area of ​​the mounting portion fixed to the glass plate structure, thereby improving the bonding strength of the mounting portion to the glass plate structure based on the first adhesive layer and the second adhesive layer.

[0207] (19) The glass diaphragm according to any one of (1) to (18), wherein

[0208] The attachment portion is fixed only to the first main surface of the glass sheet structure.

[0209] According to the glass diaphragm of this configuration, the connecting portion is attached to the attachment portion fixed to the first main surface of the glass plate structure, so that the vibrator can be stably attached to the glass plate structure.

[0210] (20) The glass diaphragm according to any one of (1) to (18), wherein

[0211] The attachment portion is fixed to the first main surface and the second main surface of the glass sheet structure.

[0212] According to the glass diaphragm of this structure, the connection parts are attached to the attachment parts fixed to the first main surface and the second main surface of the glass plate structure, so that the vibrator can be attached to the glass plate structure more stably.

[0213] (21) The glass vibration plate according to (20), wherein

[0214] The attachment portion faces an end surface connecting the first main surface and the second main surface of the glass sheet structure.

[0215] According to the glass vibration plate of this structure, since the mounting parts fixed to the first main surface and the second main surface of the glass plate structure are opposite to the end surface connecting the first main surface and the second main surface, the mounting parts can also be bonded and fixed to the part opposite to the end surface. As a result, the fixing strength of the mounting parts relative to the glass plate structure can be further improved, and the vibrator can be more stably mounted on the glass plate structure.

[0216] (22) The glass vibration plate according to (21), wherein

[0217] The second adhesive layer is in contact with the first main surface, the second main surface, and the end surface of the glass sheet structure.

[0218] According to the glass vibrating plate of this structure, the portion of the mounting portion facing the end surface of the glass plate structure can be bonded and fixed to the end surface by the second adhesive layer. This can further improve the fixing strength of the mounting portion to the glass plate structure, and the vibrator can be more stably mounted on the glass plate structure.

[0219] (23) The glass vibration plate according to any one of (20) to (22), wherein:

[0220] The glass plate structure has a through hole.

[0221] The mounting portion has a portion passing through the through hole, and is fixed to the first main surface and the second main surface.

[0222] According to the glass diaphragm of this structure, since the attachment portion has a portion that passes through the through hole of the glass plate structure, it is possible to suppress the attachment portion from coming off the glass plate structure, and the vibrator can be stably attached to the glass plate structure.

[0223] (24) The glass vibration plate according to (23), wherein

[0224] The second adhesive layer is disposed on at least a portion of the through hole.

[0225] According to the glass vibration plate of this structure, the portion of the mounting portion arranged at at least a portion of the through hole of the glass plate structure can be bonded and fixed to the glass plate structure by the second adhesive layer. Thus, the fixing strength of the mounting portion relative to the glass plate structure can be further improved, and the vibrator can be more stably mounted on the glass plate structure.

[0226] (25) The glass vibration plate according to (1), wherein

[0227] An air layer is formed at least partially between the mounting portion and the second adhesive layer.

[0228] According to the glass diaphragm having this structure, when a moisture-curing adhesive is used as the adhesive, for example, curing of the portion of the adhesive in contact with the air layer is accelerated, and the uncured portion is reduced.

[0229] (26) A glass vibration plate with a vibrator, wherein:

[0230] A glass vibration plate as described in any one of (1) to (25) and the above-mentioned vibrator.

[0231] According to the glass diaphragm with a vibrator of this structure, the connecting portion is fixed to the attachment portion fixed to the glass plate structure, so that the glass diaphragm can be a glass diaphragm with a vibrator provided with the vibrator.

[0232] (27) A method for manufacturing a glass vibration plate, wherein:

[0233] A first adhesive layer is disposed on a surface of a mounting portion that is fixed to a glass plate structure and to which a connecting portion of a vibrator for vibrating the glass plate structure is mounted,

[0234] The glass plate structure and the mounting portion are bonded together via the first adhesive layer.

[0235] An adhesive serving as a second adhesive layer is injected from an injection port connected to a space provided inside the attachment portion, and the glass sheet structure and the attachment portion are bonded to each other via the second adhesive layer.

[0236] According to the manufacturing method of the glass vibration plate of this structure, the glass plate structure and the mounting part are bonded via the first adhesive layer arranged on the surface of the mounting part opposite to the glass plate structure, so that the mounting part can be easily positioned and fixed to the glass plate structure. Then, the adhesive that becomes the second adhesive layer is injected from the injection port connected to the space provided inside the mounting part, so that the glass plate structure and the mounting part can be fixed via the second adhesive layer composed of the adhesive. In this way, it is possible to manufacture a glass vibration plate in which the mounting part is firmly fixed to the glass plate structure by the first adhesive layer and the second adhesive layer, and the vibrator is stably mounted.

[0237] (28) The method for manufacturing a glass diaphragm according to (27), wherein:

[0238] When the adhesive to be the second adhesive layer is injected, the second adhesive layer is visually confirmed at the injection port connected to the space of the mounting portion.

[0239] According to the method for manufacturing a glass diaphragm having such a structure, the filling state of the space of the mounting portion with the adhesive can be easily checked by visually checking the second adhesive layer at the pouring port.

[0240] (29) A method for manufacturing a glass vibration plate with a vibrator, wherein:

[0241] After implementing the method for manufacturing a glass vibration plate described in (27) or (28), the vibrator is mounted on the mounting portion.

[0242] According to the manufacturing method of the glass diaphragm of this structure, it is possible to manufacture a glass diaphragm with a vibrator in which the vibrator is stably mounted and the degradation of the sound quality emitted from the glass diaphragm due to positional deviation of the vibrator and the fall-off of the vibrator are suppressed.

[0243] In addition, this application is based on the Japanese patent application (Japanese Patent Application No. 2022-082515) filed on May 19, 2022, and its contents are incorporated herein by reference.

[0244] Description of Reference Numerals

[0245] 11...glass vibration plate; 13...oscillator; 15...glass plate structure; 15a...first main surface; 15b...second main surface; 15c...end surface; 15d...through hole; 17...installation portion; 19...connection portion; 21...first adhesive layer; 23...second adhesive layer; 23a...layer; 23L...adhesive; 37...through hole; 39...space; 45a...step; 100...glass vibration plate with vibrator; G...center of gravity.

Claims

1. A glass vibration plate, wherein: have: Glass plate structure; A mounting portion, fixed to the glass plate structure; a connecting portion mounted on the mounting portion and fixed to a vibrator that vibrates the glass plate constituent body; and The first adhesive layer and the second adhesive layer are arranged between the glass plate structure and the mounting portion. The first adhesive layer and the second adhesive layer are made of different materials.

2. The glass vibration plate according to claim 1, wherein: The first adhesive layer and the second adhesive layer are in contact with both the glass plate structure and the attachment portion.

3. The glass vibration plate according to claim 1, wherein: The first adhesive layer and the second adhesive layer have portions in contact with each other.

4. The glass vibration plate according to claim 1, wherein: When the glass sheet structure is viewed in a plan view, the first adhesive layer has a portion arranged outside the second adhesive layer with respect to the center of gravity of the attachment portion.

5. The glass vibration plate according to claim 4, wherein: The first adhesive layer has a portion disposed outside the attachment portion when the glass sheet structure is viewed in a plan view.

6. The glass vibration plate according to claim 4, wherein: When the glass sheet structure is viewed in a plan view, the first adhesive layer is arranged in a closed loop shape surrounding the second adhesive layer.

7. The glass vibration plate according to claim 1, wherein: The second adhesive layer is thicker than the first adhesive layer.

8. The glass vibration plate according to claim 1, wherein: The first adhesive layer is arranged in a central region including the center of gravity of the attachment portion when the glass sheet structure is viewed in a plan view.

9. The glass vibration plate according to claim 1, wherein: The mounting portion has at least one through hole.

10. The glass vibration plate according to claim 9, wherein: The mounting portion has a plurality of through holes that are in contact with the second adhesive layer.

11. The glass vibration plate according to claim 10, wherein: At least one of the through holes is formed on a side wall surface of the mounting portion that is different from a surface on which the connecting portion is mounted.

12. The glass vibration plate according to claim 9, wherein: The through hole extends in a thickness direction of the glass sheet structure.

13. The glass vibration plate according to claim 9, wherein: The through hole has a width narrower than a width of the second adhesive layer.

14. The glass vibration plate according to claim 9, wherein: The second adhesive layer includes: a plurality of layers that are in contact with the glass plate structure and are separated from each other; and a portion that connects the plurality of layers and fills the connection groove.

15. The glass vibration plate according to claim 1, wherein: The Young's modulus of the second adhesive layer is 1×10 5 Pa or above.

16. The glass vibration plate according to claim 1, wherein: When the surface area of ​​the first adhesive layer in contact with the glass plate structure is S1, and the surface area of ​​the second adhesive layer in contact with the glass plate structure is S2, S1:S2 satisfies the range of 1:0.01 to 1:

100.

17. The glass vibration plate according to claim 1, wherein: When the glass sheet structure is viewed from above, an area of ​​the mounting portion on the glass sheet structure side is wider than an area of ​​the mounting portion on a side away from the glass sheet structure.

18. The glass vibration plate according to claim 17, wherein: The mounting portion has a step toward the glass plate constituent body.

19. The glass vibration plate according to claim 1, wherein: The attachment portion is fixed only to the first main surface of the glass sheet structure.

20. The glass vibration plate according to claim 1, wherein The attachment portion is fixed to the first main surface and the second main surface of the glass sheet structure.

21. The glass vibration plate according to claim 20, wherein: The attachment portion faces an end surface connecting the first main surface and the second main surface of the glass sheet structure.

22. The glass vibration plate according to claim 21, wherein The second adhesive layer is in contact with the first main surface, the second main surface, and the end surface of the glass sheet structure.

23. The glass vibration plate according to claim 20, wherein: The glass plate structure has a through hole. The mounting portion has a portion that passes through the through hole, and is fixed to the first main surface and the second main surface.

24. The glass vibration plate according to claim 23, wherein: The second adhesive layer is disposed on at least a portion of the through hole.

25. The glass vibration plate according to claim 1, wherein: An air layer is formed at least partially between the mounting portion and the second adhesive layer.

26. A glass vibration plate with a vibrator, wherein: A glass vibration plate according to any one of claims 1 to 25 and the vibrator.

27. A method for manufacturing a glass vibration plate, wherein: A first adhesive layer is disposed on a surface of a mounting portion that is fixed to a glass plate structure and to which a connecting portion of a vibrator for vibrating the glass plate structure is mounted, The glass plate structure and the mounting portion are bonded together via the first adhesive layer. An adhesive to be used as a second adhesive layer is injected from an injection port connected to a space provided inside the attachment portion, and the glass sheet structure and the attachment portion are bonded to each other via the second adhesive layer.

28. The method for manufacturing a glass vibration plate according to claim 27, wherein: When the adhesive to be the second adhesive layer is injected, the second adhesive layer is visually confirmed at the injection port connected to the space of the mounting portion.

29. A method for manufacturing a glass vibration plate with a vibrator, wherein: After carrying out the method for manufacturing a glass diaphragm according to claim 27 or 28, the vibrator is mounted on the mounting portion.

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