JP2024025185A - Glass diaphragm, glass diaphragm with vibrator, manufacturing method of glass diaphragm, and manufacturing method of glass diaphragm with vibrator - Google Patents

Abstract

[Problem] To provide a glass diaphragm, a glass diaphragm with a vibrator, a manufacturing method for a glass diaphragm with a vibrator, and a manufacturing method for a glass diaphragm with a vibrator, which can stably attach a vibrator to a glass plate construct, prevent the vibrator from falling off, and prevent deterioration of sound quality. [Solution] A glass plate construct (15), a mount section (17) fixed to the glass plate construct (15) and to which a vibrator (13) for vibrating the glass plate construct (15) is attached, and a holder (16) facing a first main surface (15a) of the glass plate construct (15) along an edge of the glass plate construct (15), the mount section (17) including a main mount section (21) including a connection section (19) and an extension section (23) connecting the main mount section (21) and the holder (16), the extension section (23) having a damping coefficient η of 0.01 or more and at least a portion of the extension section (23) being disposed spaced apart from the glass plate construct (15). [Selected Figure] Figure 2

Description

The present invention relates to a glass diaphragm, a glass diaphragm with a vibrator, a method of manufacturing a glass diaphragm, and a method of manufacturing a glass diaphragm with a vibrator.

BACKGROUND ART 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 JP2009-100223A 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 provides a glass diaphragm and a glass with a vibrator that can stably attach a vibrator to a glass plate structure, prevent the vibrator from falling off, and suppress deterioration in the quality of sound emitted from the glass diaphragm. The object of the present invention is to provide a diaphragm, a method for manufacturing a glass diaphragm, and a method for manufacturing a glass diaphragm with a vibrator.

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;
a holder that faces the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount section includes a main mount section including a connection section to which the vibrator is attached, and an extension section that connects the main mount section and the holder,
The extension portion has a damping coefficient η of 0.01 or more, and is arranged at least partially apart from the glass plate structure.
(2) A glass diaphragm with a vibrator, comprising the glass diaphragm according to (1) above, and the vibrator connected to the connection part of the mount part.
(3) A glass plate structure, a main mount part to which a vibrator for vibrating the glass plate structure is attached, a holder fixed to the glass plate structure, and an extension connecting the main mount part and the holder. A method for manufacturing a glass diaphragm, comprising:
attaching the main mount part and the holder to the glass plate structure;
The extension portion having a core layer and a covering portion that covers the core layer and has higher rigidity than the core layer is placed between the main mount portion and the holder without contacting the glass plate structure. A method of manufacturing a glass diaphragm that is connected to and fixed to.
(4) A glass plate structure; a main mount part to which a vibrator for vibrating the glass plate structure is attached; and a main mount part that is integrated with a covering part extending outside as a plate; A method for manufacturing a glass diaphragm, comprising: a holder to be fixed;
attaching the main mount part and the holder to the glass plate structure;
A glass vibrator in which the extension portion including a portion in which a core layer having a lower rigidity than the covering portion is laminated on the main surface of the covering portion is connected and fixed to the holder without contacting the glass plate structure. Method of manufacturing the board.
(5) After the method for manufacturing a glass diaphragm described in (3) or (4) above,
A method of manufacturing a glass diaphragm with a vibrator, the method comprising: attaching the vibrator to the main mount part.

According to the present invention, it is possible to stably attach the vibrator to the glass plate structure, to suppress the vibrator from falling off, and to suppress deterioration in the quality of sound emitted from the glass diaphragm.

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 an enlarged view of the lower edge portion of the glass diaphragm. FIG. 5 is a schematic plan view of a glass diaphragm with a vibrator equipped with a holder for supporting a mount. FIG. 6 is a cross-sectional view of the extension. FIG. 7 is a cross-sectional view of an extension of another structure. FIG. 8A is a cross-sectional view along the thickness direction of the lower edge portion of the glass diaphragm, illustrating the manufacturing process of the glass diaphragm. FIG. 8B is a sectional view along the thickness direction of the lower edge portion of the glass diaphragm, illustrating the manufacturing process of the glass diaphragm. FIG. 9 is a sectional view along the thickness direction of the lower edge portion of the glass diaphragm in which the main mount portion and the extension portion are connected by another connection structure. FIG. 10 is a sectional view along the thickness direction of the lower edge portion of the glass diaphragm in which a portion of the extension portion is integrally formed with the main mount portion. FIG. 11A is a cross-sectional view along the thickness direction of a lower edge portion of a glass diaphragm, illustrating a manufacturing process of a glass diaphragm in which a part of an extension part is integrally formed with a main mount part. FIG. 11B is a cross-sectional view along the thickness direction of the lower edge portion of the glass diaphragm, illustrating the manufacturing process of a glass diaphragm in which a part of the extension part is integrally formed with the main mount part. FIG. 12 is an enlarged view of the lower edge portion of the glass diaphragm according to Modification 1. FIG. 13 is an enlarged view of the lower edge portion of the glass diaphragm according to Modification 2. FIG. 14 is an enlarged view of the lower edge portion of the glass diaphragm according to Modification Example 3. FIG. 15 is a cross-sectional view along the thickness direction of the lower edge portion of the glass diaphragm according to Modification Example 4. FIG. 16 is a sectional view along the thickness direction of the lower edge portion of a glass diaphragm showing another structural example of Modification 4.

Embodiments of the present invention will be described in detail below 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 an enlarged view of the lower edge portion of the glass diaphragm 11.

As shown in FIGS. 1 to 4, the glass diaphragm 11 includes a glass plate structure 15, a mount portion 17, a connecting portion 19, and a holder 16. A vibrator 13 that generates vibrations on the main surface of the glass plate structure 15 can be attached to the glass diaphragm 11 .

<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 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 are adhesively fixed by an adhesive layer 31. In addition, it may be fixed so that the glass plate structure 15 may be pinched|pinched so that the 1st main surface 15a and the 2nd main surface 15b may contact.

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 a vibrating device that uses a contacting object 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 nylon 66 (PA66). ), polyphenylene sulfide (PPS), ABS resin, etc., and can be made into a structure with excellent moldability. Alternatively, the above material may be kneaded with glass fiber or the like to improve its strength. By using the above material, sufficient connection strength can be obtained without causing cracks or the like in the mount portion 17.

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 main mount portion 21 has a screw hole 25 on the side opposite to the side on which the glass plate structure 15 is fixed. 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.

An adhesive layer 31 is provided between the main mount portion 21 and the glass plate structure 15 (see FIG. 3). The adhesive layer 31 has a thickness of 0.50 [mm] or less, and is made of, for example, an adhesive tape made of acrylic, epoxy, silicone, urethane, or phenol resin. Further, the adhesive layer 31 preferably has an area of 50 [mm ² ] or more in a plan view of the glass plate structure 15. The main mount portion 21 is adhesively fixed to the first main surface 15a of the glass plate structure 15 in close contact with the 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.

The extension part 23 is formed in a strip shape, and one end 23a is connected 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 extension portion 23 may have a structure integrally formed with the main mount portion 21. Here, the case where the extension part 23 is a separate member from the main mount part 21 is illustrated.

The main mount portion 21 has a protrusion 22 on its peripheral surface that protrudes outward in the radial direction, and the extension portion 23 is arranged such that one end 23a thereof overlaps the protrusion 22 (Fig. (See 3). One end 23 a of the extension portion 23 is connected to the protrusion 22 of the main mount portion 21 by being fastened and fixed with a screw 24 . In this way, one end 23a of the extension portion 23 is mechanically fastened to the main mount portion 21. The extension part 23, whose one end 23a is connected to the main mount part 21, extends from the outer periphery of the main mount part 21 along the first main surface 15a of the glass plate structure 15 and away from the first main surface 15a. It is extended in the direction.

Note that the connection structure between the main mount part 21 and the extension part 23 includes not only fastening with screws 24 but also mechanical fastening with bolts/nuts, rivets, keys, pins, clips, etc., engagement by welding, insertion, etc. etc. Further, the main mount portion 21 and the extension portion 23 may be further fixed using an adhesive or an adhesive in addition to the above-mentioned mechanical engagement means. In this case, when connecting the extension part 23 to the protrusion part 22 of the main mount part 21 by mechanical engagement means, it is preferable to temporarily fix it with an adhesive or an adhesive such as an adhesive tape.

<Holder>
The holder 16 is arranged along the edge of the glass plate structure 15, and the other end 23b of the extension part 23 of the mount part 17 is connected to the holder 16. For example, when the glass plate structure 15 is used as a vehicle sliding window in a side window, when it is assembled to the vehicle body, the holder 16 is attached to the lower end of the glass plate structure 15, and the holder 16 is raised and lowered by a lifting mechanism (not shown). be done. That is, the holder 16 can be, for example, a holder of an elevating mechanism. As shown in FIG. 1, the holder 16 is located outside the edge of the glass plate structure 15 in a plan view of the glass plate structure 15, and mechanically allows the glass plate structure 15 to slide. It has a connecting part 35 for connection. 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 lifting mechanism to the connecting portion 35 of the holder 16, the glass plate structure 15 can be easily made slidable.

The holder 16 has a first plate part 41, a second plate part 42, and a third plate part 43 (see FIGS. 2 and 3). 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 disposed at a position facing the lower end surface 15c of the glass plate structure 15. 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 holder 16 having the first plate part 41, the second plate part 42, and the third plate part 43 is formed into 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 being fitted 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 holder 16.

Further, the holder 16 is provided on the first plate portion 41 on the side opposite to the first main surface 15a of the glass plate structure 15 and on the third plate portion 43 on the side opposite to the second main surface 15b of the glass plate structure 15. , has a resin portion 45. The glass plate structure 15 is held by the first plate part 41 and the third plate part 43 of the holder 16 via the resin part 45. This resin part 45 is a resin layer containing materials such as rubber and adhesive, and 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 is preferable. Further, the resin portion 45 preferably has a linear expansion coefficient of 1.0×10 ^-5 [/°C] or more between -40 [°C] and 90 [°C]. By providing the resin part 45, it serves as a spacer and allows the holder to be attached to the glass plate structure 15 without bringing the first plate part 41 and the third plate part 42 into contact with the glass plate structure 15 at zero distance. 16 can be held and fixed. Further, the resin part 45 can reduce the difference in linear expansion between the glass plate structure 15 and the first plate part 41 and the third plate part 42, thereby reducing the risk of cracking of these materials and the risk of the holder 16 falling off.

The holder 16 is arranged such that the other end 23b of the extension part 23 overlaps the first plate part 41. The other end 23b of the extension portion 23 is connected to the first plate portion 41 by being fastened and fixed with a screw 47. In this way, the other end 23b of the extension portion 23 is mechanically fastened to the holder 16. The connection structure between the holder 16 and the extension part 23 may include not only the screw 47 but also mechanical fastening using bolts/nuts, rivets, keys, pins, clips, etc., welding, insertion, and other means. be. Moreover, the holder 16 and the extension part 23 may be further fixed with an adhesive or an adhesive in addition to the above-mentioned mechanical engagement means. In this case, when connecting the extension part 23 to the first plate part 41 of the holder 16 by mechanical engagement means, it is preferable to temporarily fix the extension part 23 with an adhesive or an adhesive such as an adhesive tape.

Note that the holder 16 is not limited to one having the plate-shaped connecting portion 35, and may have a connecting portion on the side surface. Moreover, as the holder to which the extension part 23 of the mount part 17 is connected, a holder for supporting the mount may be provided instead of using the holder 16 for the elevating mechanism.

FIG. 5 is a schematic plan view of a glass diaphragm 100 with a vibrator equipped with a holder 14 for mount support.
The glass diaphragm 100 with a vibrator shown in FIG. 5 includes a holder 14 for supporting a mount, in addition to the holder 16 of the elevating mechanism (at a different position). In this way, the glass plate structure 15 may be provided with the holder 14 for supporting the mount, and the end portion of the extension portion 23 of the mount portion 17 may be connected to this holder 14. In this case, since the mount portion 17 can be placed at any position on the first principal surface 15a of the glass plate structure 15, the degree of freedom in arranging the glass diaphragm 11 at a position that provides desired sound is increased. Further, since the holder 14 can use the parts of the holder 16 for the lifting mechanism except for the connecting part 35, there is an advantage that the holder 14 can be easily manufactured by modifying the holder 16.

<Configuration of extension part>
One end 23 a of the plate-shaped extension 23 constituting the mount 17 is connected to the main mount 21 . Furthermore, the other end 23b of the extension part 23 on the opposite side from the main mount part 21 overlaps with the holder 16 in a plan view of the glass plate structure 15, and this other end 23b is connected to the holder 16. As a result, the main mount section 21 of the mount section 17 to which the connecting section 19 fixed to the vibrator 13 is attached is supported by the holder 16 by the extension section 23 . Moreover, the extension part 23 connected to the main mount part 21 and the holder 16 is arranged apart from the glass plate structure 15 (see FIGS. 2 and 3). That is, the medium between the glass plate arrangement 15 and the extension 23 is air.

Note that the extension part 23 may have a structure in which a part thereof is spaced apart from the glass plate structure 15, and between the glass plate structure 15 and the extension part 23, for example, there is a sponge or urethane material. Cellular structures such as foam may also be provided. That is, the extension part 23 provides a medium (air, a bubble structure, etc.) between the extension part 23 and the glass plate structure 15 so that vibration transmission from the extension part 23 to the glass plate structure 15 can be suppressed. Good. Moreover, the extension part 23 whose one end 23a is connected to the main mount part 21 may have the other end 23b protruding beyond the holder 16 when the glass plate structure 15 is viewed from above. That is, in FIG. 4, the other end 23b of the extension part 23 may protrude from the end of the holder 16 on the opposite side to the mount part 17 side.

If the extension part 23 connected to the main mount part 21 and the holder 16 is made of wire, fiber, metal mesh, etc., the extension part 23 itself may be deformed and misaligned. If the mount section 21 falls, it may not be able to hold the weight and the extension section 23 may break and separate. Further, the extension part 23 can have a shape such as a round bar or a hollow bar, and both ends (23a, 23b) can be fastened together, but since the vibration from the main mount part 21 is propagated to the holder 16, There is a risk that the section 23 itself may undergo self-excited vibration, impairing its acoustic performance. Therefore, it is necessary to have a structure with a high damping coefficient η. Specifically, the damping coefficient η is 0.01 or more. Moreover, the extension part 23 is arranged apart from the glass plate structure 15. Therefore, vibrations from the vibrator 13 can be suppressed from being transmitted from the main mount section 21 of the mount section 17 to the holder 16. Thereby, the vibrations from the vibrator 13 are smoothly transmitted to the glass plate structure 15 to enhance the acoustic effect, and furthermore, the generation of abnormal noise due to the vibration of the extension part 23 itself can be suppressed. The damping coefficient η of the extension portion 23 is preferably 0.05 or more, more preferably 0.10 or more, even more preferably 0.30 or more, and particularly preferably 0.50 or more. Methods for measuring the damping coefficient η of the extension portion 23 include, for example, the damping rate method, the half-width method, and the mechanical impedance method, which are resonance methods that measure near the resonance frequency.

FIG. 6 is a cross-sectional view of the extension portion 23. As shown in FIG. FIG. 7 is a cross-sectional view of an extension 23 of another construction.
As shown in FIG. 6, the extension portion 23 has a composite structure consisting of a core layer 51 and a covering portion 61 having higher rigidity than the core layer 51. The core layer 51 is formed into a plate shape having a first main surface 53 and a second main surface 55. The covering section 61 has a first covering section 63 and a second covering section 65. The first covering part 63 is superimposed on the first main surface 53 of the core layer 51 and covers at least a part of the first main surface 53 of the core layer 51, and the second covering part 65 is the second main surface 53 of the core layer 51. It overlaps the main surface 55 and covers at least a portion of the second main surface 55 of the core layer 51 . Further, it is preferable that the first covering part 63 covers the entire first main surface 53 of the core layer 51, and the second covering part 65 covers the entire second main surface 55 of the core layer 51. The core layer 51 is in close contact with the first covering part 63 and the second covering part 65 without adhesion or slipping between them. In other words, as shown in FIG. 6, the extension part 23 is a constrained type in which a first covering part 63 and a second covering part 65 with high rigidity are superimposed on both sides of a vibration damping material made of a core layer 51 of a viscoelastic material. It is a vibration damping member.

The extension part 23 in FIG. 6 preferably has a structure in which the first covering part 63 and the second covering part 65 do not touch each other. This is because if there is a portion where the first covering part 63 and the second covering part 65 touch each other, the vibration damping effect in the extension part 23 will be reduced, and the acoustic effect will be deteriorated. Further, it is preferable that the core layer 51 is continuously sandwiched between the first covering part 63 and the second covering part 65, but the core layer 51 is disposed intermittently in the longitudinal direction of the extension part 23. Alternatively, the regions of the plurality of core layers 51 may be spaced apart from each other. In this case, the space between the plurality of core layers 51 which are spaced apart from each other may be an air layer.

As shown in FIG. 7, the extension part 23 is a non-contact structure in which a covering part 61 consisting of a highly rigid first covering part 63 is superimposed on the first main surface 53, which is one side of the core layer 51 made of a viscoelastic material. A restraining type vibration damping member may be used. Further, the extension portion 23 may be a non-constrained vibration damping member in which a covering portion 61 made of a highly rigid second covering portion 65 is superimposed on the second main surface 55, which is one side of the core layer 51.

In the extension part 23, the core layer 51 is made of resin, and the covering part 61 has at least one of metal and hard plastic. As a result, the core layer 51 made of resin increases the vibration damping efficiency in the extension part 23, and the covering part 61 including at least one of metal and hard plastic increases the strength of the extension part 23. The support strength of the mount portion 21 to the holder 16 is increased.

In the extension part 23, the core layer 51 is continuously arranged from one end 23a on the main mount part 21 side to the other end 23b on the opposite side to the main mount part 21 side in a plan view of the glass plate structure 15. This increases the vibration damping efficiency in the extension portion 23. In addition, also in the extension part 23 shown in FIG. 7, the core layer 51 may be disposed intermittently in the longitudinal direction of the extension part 23.

Examples of the resin material for the core layer 51 include urethane, epoxy, and silicone. The loss coefficient tan δ determined from dynamic viscoelasticity measurement of the resin material of the core layer 51 is preferably 0.1 or more, more preferably 0.3 or more, and even more preferably 0.5 or more. Note that the loss coefficient tan δ can be measured using DVA (registered trademark)-200 (IT Keizai Control Co., Ltd.) as a dynamic viscoelasticity measuring device.

Examples of the metal material of the covering portion 61 include aluminum or aluminum alloy, stainless steel, titanium alloy, etc., and the water repellent effect and rust prevention effect are enhanced by coating the surface. Examples of hard plastic materials for the covering portion 61 include acrylic resins such as polymethyl methacrylate resin (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), urethane, polypropylene (PP), and polybutylene terephthalate ( Examples include plastics such as PBT), 66 nylon (PA66), polyphenylene sulfide (PPS), and ABS resin, and fiber-reinforced plastics in which the above plastics contain reinforcing fibers. The glass transition point of the hard plastic material of the covering portion 61 is preferably 50 [°C] or higher, more preferably 60 [°C] or higher, and even more preferably 80 [°C] or higher.

The width of the extension portion 23 in the transverse direction may be in the range of 0.1 [mm] to 50 [mm]. Thereby, the support strength of the main mount part 21 by the extension part 23 can be ensured sufficiently. Note that the width of the extension portion 23 in the lateral direction is preferably 30 [mm] or less, more preferably 10 [mm] or less. In addition, the width of the extension part 23 in the lateral direction is preferably 1 [mm] or more, and more preferably 3 [mm] or more, in order to support the main mount part 21 whose weight increases when the vibrator 13 is assembled. Preferably, 5 [mm] or more is more preferable.

Further, the extension portion 23 may have a thickness of 20 [mm] or less. Thereby, transmission of vibrations from the main mount portion 21 to the holder 16 via the extension portion 23 can be suppressed favorably. Note that the thickness of the extension portion 23 is preferably 10 [mm] or less, more preferably 5 [mm] or less, and even more preferably 1 [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. More preferably, it is 0.5 [mm] or more.

Further, when the extension part has a width in the width direction of the glass plate structure 15 in a plan view as W, and a thickness corresponding to the normal direction of the first main surface 15a of the glass plate structure 15 as t. If the aspect ratio is within an appropriate range for rigid body deformation, it can be bent and deformed in response to shear force, and vibration energy can be appropriately damped. The aspect ratio (W/t) may be 0.1 to 50, preferably 0.5 to 30, and more preferably 1 to 20.

Further, the Young's modulus of the extension portion 23 may be between 1.0×10 ⁷ [Pa] and 1.0×10 ¹² [Pa], and between 1.0×10 ⁸ [Pa] and 5.0×10 ¹¹ [Pa] is preferable, and 1.0×10 ⁹ [Pa] to 1.0×10 ¹¹ [Pa] is more preferable.

Further, in a plan view of the glass plate structure 15, the shortest distance D (see FIG. 4) from the center of the main mount portion 21 to the holder 16 may be 10 [mm] or more. If the main mount part 21 is too close to the holder 16, the vibration of the vibrator 13 assembled to the main mount part 21 will be easily transmitted to the holder 16 via the extension part 23, so the main mount part 21 will be moved away from the holder 16. It is preferable to In this configuration example, since the shortest distance D from the center of the main mount section 21 to the holder 16 is 10 [mm] or more, vibrations from the vibrator 13 are transmitted from the main mount section 21 of the mount section 17 to the holder 16. It is possible to effectively suppress the occurrence of 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 holder 16 is preferably 30 [mm] or more, and more preferably 50 [mm] or more. Although the upper limit of the shortest distance D is not particularly limited, an example of the shortest distance D is 300 [mm] or less due to the installation space of the mount portion 17.

In this way, according to the glass diaphragm 11 of this configuration example, the main mount part 21 of the mount part 17 is connected to and supported by the holder 16 by the extension part 23. Therefore, the main mount part 21 of 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, and the fall of the vibrator 13 from the glass plate structure 15 can be suppressed. . Moreover, it is preferable that the extension part 23 connecting the main mount part 21 and the holder 16 has an attenuation coefficient η of 0.01 or more and is arranged at least partially apart from the glass plate structure 15. Preferably, all of the components are spaced apart from the component 15. Therefore, vibrations from the vibrator 13 can be suppressed from being transmitted from the main mount part 21 of the mount part 17 to the holder 16, and generation of abnormal noise due to vibrations of the extension part 23 itself can also be suppressed.

Further, the extension part 23 is separate from the main mount part 21, and one end 23a on the main mount part 21 side is mechanically fastened to the main mount part 21, and the other end on the holder 16 side is mechanically fastened to the holder 16. is concluded. Therefore, the extension portion 23 can be easily retrofitted.

Note that 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 glazing, front quarter windows, rear quarter windows, and the like. 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.

<Method for manufacturing glass diaphragm>
Next, a method for manufacturing the glass diaphragm 11 according to this configuration example will be described.
8A and 8B are cross-sectional views along the thickness direction of the lower edge portion of the glass diaphragm 11, illustrating the manufacturing process of the glass diaphragm 11.

(Preparation process)
First, the glass plate structure 15, the main mount section 21, the holder 16, and the extension section 23 are prepared. At this time, the extension part 23 integrates the core layer 51 and the covering part 61. Specifically, the first covering part 63 forming the covering part 61 is superimposed on the first main surface 53 of the core layer 51, and the second covering part forming the covering part 61 is overlapped on the second main surface 55 of the core layer 51. 65 on top of each other. In addition, in the extension part 23, the presence or absence of the second covering part 65 may be arbitrarily determined.

(Parts installation process)
As shown in FIG. 8A, the main mount part 21 and the holder 16 are attached to the glass plate structure 15. For example, the main mount portion 21 is adhesively fixed to the first main surface 15a of the glass plate structure 15 with an adhesive that will become the adhesive layer 31 while the protrusion portion 22 is directed toward the holder 16 side. Further, a U-shaped holder 16 is fitted and attached to the lower edge of the glass plate structure 15.

(Extension crosslinking process)
As shown in FIG. 8B, the extension part 23 is connected and fixed between the main mount part 21 and the holder 16 without contacting the glass plate structure 15. Specifically, one end 23a of the extension part 23 is overlapped with the projection part 22 of the main mount part 21, and the other end 23b of the extension part 23 is overlapped with the first plate part 41 of the holder 16. Then, one end 23a of the extension part 23 is fastened and fixed to the projection part 22 with a screw 24, and the other end 23b of the extension part 23 is fastened and fixed to the first plate part 41 of the holder 16 with a screw 47. Thereby, one end 23a of the extension part 23 is connected to the main mount part 21, and the other end 23b of the extension part 23 is connected to the holder 16. Thereby, the extension part 23 spans the main mount part 21 and the holder 16 while being spaced apart from the glass plate structure 15.

As described above, according to the above manufacturing method, the glass diaphragm 11 is manufactured in which the main mount part 21 and the holder 16 are attached to the glass plate structure 15, and the main mount part 21 is supported by the holder 16 by the extension part 23. can. Moreover, since the extension part 23 can be added later, work efficiency can be improved.

After that, by fixing the connecting part 19 to the mount part 17 and attaching the vibrator 13, the vibrator 13 is stably attached, and the deterioration of the quality of the sound emitted from the glass diaphragm 11 and the falling off of the vibrator 13 are suppressed. A glass diaphragm 100 with a vibrator is obtained.

FIG. 9 is a cross-sectional view along the thickness direction of the lower edge portion of the glass diaphragm 11 in which the main mount portion 21 and the extension portion 23 are connected by another connection structure.
In the glass diaphragm 11 having the configuration example shown in FIG. 9 , a protrusion 22 having a groove 22 a is formed on the wall surface of the main mount portion 21 . One end 23a of the extension portion 23 is inserted into the groove 22a of the main mount portion 21 and placed inside the groove 22a. As a result, one end 23a of the extension portion 23 is inserted into the main mount portion 21 and connected thereto. Note that the other end 23b of the extension portion 23 is fastened and fixed to the first plate portion 41 of the holder 16 with a screw 47. Thereby, the extension part 23 is connected to the main mount part 21 and the holder 16 without the one end 23a slipping out of the groove part 22a of the main mount part 21.

When manufacturing the glass diaphragm 11 with this insertion structure, in the extension bridging process, one end 23a of the extension 23 is inserted into the groove 22a of the projection 22 of the main mount 21, and the other end 23b of the extension 23 is inserted into the groove 22a of the protrusion 22 of the main mount 21. are superimposed on the holder 16. In this state, the other end 23b of the extension part 23 is fastened and fixed to the first plate part 41 of the holder 16 with the screw 47. As a result, one end 23a of the extension part 23 can be connected to the main mount part 21, and the other end 23b of the extension part 23 can be connected to the holder 16. It spans between the mount section 21 and the holder 16. In this way, with a structure in which one end 23a of the extension part 23 is inserted into the groove part 22a, the extension part 23 can be easily connected to the main mount part 21. In addition, in order to fix it more stably, it may have a structure in which a screw 24 (shown in FIG. 8B) is also fastened to one end 23a of the extension part 23.

Note that at least a portion of the extension portion 23 may be formed integrally with the main mount portion 21.
FIG. 10 is a sectional view along the thickness direction of the lower edge portion of the glass diaphragm 11 in which a portion of the extension portion 23 is integrally formed with the main mount portion 21.
In the glass diaphragm 11 having the configuration example shown in FIG. 63 are laminated in order to form the extension portion 23. The other end 23b of the extension portion 23 is fastened and fixed to the first plate portion 41 of the holder 16 with a screw 47, and is connected to the main mount portion 21 and the holder 16. In this way, by integrally forming the second covering part 65, which is a part of the extension part 23, with the main mount part 21, the connection structure of the extension part 23 to the main mount part 21 can be simplified.

Next, a method for manufacturing the glass diaphragm 11 of this configuration example will be described.
11A and 11B are cross-sectional views along the thickness direction of the lower edge portion of the glass diaphragm 11, illustrating the manufacturing process of the glass diaphragm 11 in which a part of the extension portion 23 is integrally formed with the main mount portion 21. It is.

(Preparation process)
First, the glass plate structure 15, the main mount part 21 in which the second covering part 65 of the extension part 23 is integrally formed, and the holder 16 are prepared.

(Parts installation process)
Next, as shown in FIG. 11A, the main mount part 21 and the holder 16 are attached to the glass plate structure 15. At this time, the main mount part 21 is attached to the glass plate structure 15 so that the end of the second covering part 65 of the extension part 23 formed integrally with the main mount part 21 overlaps the first plate part 41 of the holder 16. Fix it.

(Extension crosslinking process)
Furthermore, as shown in FIG. 11B, a laminate that is the other part of the extension part 23 in which the first covering part 63 is laminated on the core layer 51 is placed on the main surface consisting of the upper surface of the second covering part 65. 51 toward the second covering portion 65. Then, the extension part 23 consisting of the core layer 51 and the covering part 61 is connected to the main mount part 21, and the extension part 23 is connected to the main mount part 21 and the holder 16 while being separated from the glass plate structure 15. It will be bridged between. Then, the other end 23b of the extension portion 23 is fastened and fixed to the first plate portion 41 of the holder 16 with a screw 47.

As described above, according to the above manufacturing method, the glass diaphragm 11 is manufactured in which the main mount part 21 and the holder 16 are attached to the glass plate structure 15, and the main mount part 21 is supported by the holder 16 by the extension part 23. can. Moreover, a laminate in which the core layer 51 and the first covering part 63 are laminated is superimposed on the main surface of the second covering part 65 that is formed integrally with the main mount part 21 and extends to form the extension part 23. Since the portion 23 is connected and fixed to the holder 16, the work of connecting the extension portion 23 and the main mount portion 21 can be omitted, and work efficiency can be improved.

After that, by fixing the connecting part 19 to the mount part 17 and attaching the vibrator 13, the vibrator 13 is stably attached, and the deterioration of the quality of the sound emitted from the glass diaphragm 11 and the falling off of the vibrator 13 are suppressed. A glass diaphragm 100 with a vibrator is obtained.

Note that a first covering part 63 and a second covering part 65 that constitute the covering part 61 are integrally formed on the main mount part 21 at a predetermined interval, and a core is formed between the first covering part 63 and the second covering part 65. The extension portion 23 may be filled with resin to form the layer 51.

Furthermore, the support structure of the main mount section 21 by the extension section 23 of the glass diaphragm 11 described above is just one example, and can be changed to various configurations.
Hereinafter, a modification of the support structure of the main mount section 21 by the extension section 23 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. In addition, in a modification, a case will be explained in which an extension part 23 separate from the main mount part 21 is provided.

(Modification 1)
FIG. 12 is an enlarged view of the lower edge portion of the glass diaphragm 11 according to Modification 1.
As shown in FIG. 12, in the glass diaphragm 11 according to Modification Example 1, the extension part 23 of the mount part 17 has the other end 23b, which is the end part on the opposite side to the main mount part 21, in the glass plate structure in the holder 16. The body 15 is fastened and connected to a connecting portion 35 that protrudes outward from the edge of the body 15 using a screw 47 . In this modification example 1, the other end 23b of the extension part 23 can be fastened to the connecting part 35 of the holder 16 together with the rod of the elevating mechanism using the screw 47, thereby simplifying the connection work.

(Modification 2)
FIG. 13 is an enlarged view of the lower edge portion of the glass diaphragm 11 according to Modification 2.
As shown in FIG. 13, in the glass diaphragm 11 according to the second modification, the mount portion 17 has two extensions 23, and these two extensions 23 are connected to one holder 16. One end 23 a of each extension portion 23 is connected to the protrusion 22 of the main mount portion 21 by fastening with a screw 24 . The other end 23b of one extension part 23 is connected to the first plate part 41 of the holder 16 by fastening with a screw 47, and the other end 23b of the other extension part 23 is connected to the connecting part 35 of the holder 16 with a screw 47. Fastened and connected. In this second modification, by supporting the main mount part 21 on the holder 16 by the two extensions 23, the main mount part 21 can be fixed with high supporting force. Note that the number of extension parts 23 is not limited to two, and three or more extension parts 23 may be connected to the main mount part 21 and the holder 16. In that case, the main mount part 21 can be connected with an even higher supporting force. It can be fixed to the holder 16.

(Modification 3)
FIG. 14 is an enlarged view of the lower edge portion of the glass diaphragm 11 according to Modification 3.
As shown in FIG. 14, in the glass diaphragm 11 according to the third modification, the mount portion 17 has two extension portions 23. Furthermore, a holder 16 for a lifting mechanism and a holder 14 for supporting a mount are attached to the glass plate structure 15. The main mount part 21 is arranged between the holders 14 and 16, and the two extension parts 23 are connected to the two holders 14 and 16, respectively. One end 23 a of each extension portion 23 is connected to the protrusion 22 of the main mount portion 21 by fastening with a screw 24 . The other end 23b of one extension part 23 is fastened and connected to the first plate part 41 of the holder 16 for the lifting mechanism by a screw 47, and the other end 23b of the other extension part 23 is connected to the first plate part 41 of the holder 16 for the mount support. are fastened and connected to each other by screws 47. Also in the case of this third modification, by supporting the main mount part 21 on the holders 14 and 16 by the two extension parts 23, the main mount part 21 can be supported with high supporting force. Note that the number of extension parts 23 and holders 14 and 16 is not limited to two, and each may have three or more. In that case, main mount part 21 can be fixed to holders 14 and 16 with even higher supporting force. .

(Modification 4)
FIG. 15 is a cross-sectional view along the thickness direction of the lower edge portion of the glass diaphragm 11 according to Modification Example 4. FIG. 16 is a sectional view along the thickness direction of the lower edge portion of the glass diaphragm 11 showing another structural example of the fourth modification.

As shown in FIG. 15, in the glass diaphragm 11 according to the fourth modification, the extension portion 23 has a bent portion 23c. The bent portion 23c is provided approximately at the central portion of the extension portion 23 in the longitudinal direction. The extension part 23 is bent in the thickness direction at the bending part 23c, and is arranged with the protruding side due to the bending facing upward. The extension part 23 has one end 23a fastened and connected to the projection part 22 of the main mount part 21 by a screw 24, and the other end 23b fastened and connected to the first plate part 41 of the holder 16 by a screw 47. By providing the bent portion 23c on the extension portion 23, for example, when the extension portion 23 is bridged between the main mount portion 21 and the holder 16, the extension portion 23 can be placed while easily avoiding interference with peripheral members etc. . For example, when the first plate part 41 and the third plate part 43 of the holder 16 have flange parts 41a and 43a at the edges, the bent part 23c is arranged at a position corresponding to the flange part 41a of the first plate part 41. The extension portion 23 is bridged so that the extension portion 23 is Thereby, the extension part 23 is arranged so as to exceed the flange part 41a at the bent part 23c, and can be arranged while easily avoiding interference with the flange part 41a of the holder 16.

Further, as shown in FIG. 16, if the extension part 23 is also fixed to the first plate part 41 of the holder 16 at the bent part 23c with the screw 47, the main mount part 21 is fixed to the glass plate structure 15 by the extension part 23. A biasing force is generated that presses the object. Thereby, the supporting force of the main mount section 21 by the extension section 23 is increased. In this case, it is preferable that the covering portion 61 of the extension portion 23 is made of a spring steel material or the like.

Although the glass diaphragm 11 according to the fourth modification example includes the extension portion 23 having the bent portion 23c bent in the thickness direction, the bent portion 23c of the extension portion 23 is bent in the thickness direction. However, it may be bent in the plane direction. Further, the bent portions 23c may be formed at multiple locations in the extension portion 23.

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;
a holder that faces the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount section includes a main mount section including a connection section to which the vibrator is attached, and an extension section that connects the main mount section and the holder,
The extension portion has a damping coefficient η of 0.01 or more, and is arranged at least partially apart from the glass plate structure.
According to the glass diaphragm having this configuration, the main mount part of the mount part is connected to and supported by the holder by the extension part. Therefore, the mount portion to which the connecting portion fixed to the vibrator is attached can be firmly fixed to the glass plate structure, and the vibrator can be prevented from falling off from the glass plate structure. Moreover, the extension part connecting the main mount part and the holder has an attenuation coefficient η of 0.01 or more, and is arranged at least partially apart from the glass plate structure. Therefore, vibrations from the vibrator can be suppressed from being transmitted from the main mount to the holder. As a result, vibrations from the vibrator can be smoothly transmitted to the glass plate structure, thereby enhancing the acoustic effect, and furthermore, generation of abnormal noise due to vibration of the extension part itself can be suppressed.

(2) The glass diaphragm according to (1), wherein the extension portion includes a core layer and a covering portion that covers at least a portion of the core layer and has higher rigidity than the core layer.
According to this glass diaphragm, a good vibration damping effect can be obtained while ensuring high strength of the extension portion.

(3) The core layer is arranged continuously from an end on the main mount part side to an end on the opposite side to the main mount part side in a plan view of the glass plate structure. Glass diaphragm described in .
According to this glass diaphragm, the vibration damping efficiency in the extension part is enhanced by the core layer that is continuously arranged from the end on the main mount part side to the end on the opposite side to the main mount part side.

(4) The glass diaphragm according to (2) or (3), wherein the core layer is made of resin.
According to this glass diaphragm, the core layer made of resin increases the vibration damping efficiency in the extension portion.

(5) The glass diaphragm according to any one of (2) to (4), wherein the covering portion includes at least one of metal and hard plastic.
According to this glass diaphragm, the strength of the extension part is increased by the covering part including at least one of metal and hard plastic, and the support strength of the main mount part to the holder is increased.

(6) The extension part is plate-shaped,
The core layer has a first main surface and a second main surface,
The glass diaphragm according to any one of (2) to (5), wherein the covering section has a first covering section disposed on the first main surface side.
According to this glass diaphragm, the plate-shaped extension part in which the first covering part is arranged on the first main surface of the core layer ensures high support strength of the main mount part to the holder, and also provides good vibration control. A damping effect can be obtained.

(7) The glass diaphragm according to (6), wherein the covering section has a second covering section disposed on the second main surface side.
According to this glass diaphragm, the strength of the extension part is further increased by further disposing the second covering part on the second main surface of the core layer. Thereby, a good vibration damping effect can be obtained while ensuring high support strength of the main mount part to the holder by the extension part.

(8) The extension portion has a width in the width direction of the glass plate structure in plan view as W, and a thickness t corresponding to the normal direction of the first principal surface of the glass plate structure. When,
The glass diaphragm according to any one of (1) to (7), having an aspect ratio (W/t) of 0.1 to 50.
According to this glass diaphragm, it bends and deforms in response to shear force, and can appropriately attenuate vibration energy.

(9) The glass diaphragm according to any one of (1) to (8), wherein the extension portion has at least one bent portion.
According to this glass diaphragm, since the extension part has the bent part, the extension part can be arranged while easily avoiding interference with peripheral members and the like.

(10) The holder has a connecting portion outside an edge of the glass plate structure in a plan view of the glass plate structure,
The glass diaphragm according to any one of (1) to (9), wherein the extension part is connected to the connection part.
According to this glass diaphragm, the main mount part can be well supported by the extension part connected to the connecting part on the outside of the edge of the glass plate structure in the holder.

(11) The extension portion is spaced apart from the glass plate structure,
The glass diaphragm according to any one of (1) to (10), wherein the medium between the glass plate structure and the extension part is air.
According to this glass diaphragm, since the extension part is arranged apart from the glass plate structure and the medium between the glass plate structure and the extension part is air, vibrations from the extension part to the glass plate structure are transmitted. transmission can be suppressed. Thereby, vibrations from the vibrator can be smoothly transmitted to the glass plate structure, and the acoustic effect can be enhanced.

(12) The glass diaphragm according to any one of (1) to (11), wherein the extension part has an end on the main mount part side mechanically fastened to the main mount part.
According to this glass diaphragm, the extension part can be retrofitted to the main mount part.

(13) The glass diaphragm according to (12), wherein the extension portion is disposed at a protrusion protruding from the main mount portion when viewed from above of the glass plate structure.
According to this glass diaphragm, the extension part can be disposed on the protrusion of the main mount part and easily connected.

(14) The main mount section has a groove section on the wall surface,
The glass diaphragm according to (12), wherein the extension portion has an end portion on the main mount portion side disposed inside the groove portion.
According to this glass diaphragm, the end portion of the extension portion on the main mount portion side can be inserted into the groove portion of the main mount portion to be disposed and connected easily.

(15) The glass diaphragm according to any one of (1) to (11), wherein at least a portion of the extension portion is formed integrally with the main mount portion.
According to this glass diaphragm, the connection structure to the main mount can be simplified.

(16) In any one of (1) to (15), the extension part has an end opposite to the main mount part that overlaps with the holder in a plan view of the glass plate structure. Glass diaphragm as described.
According to this glass diaphragm, in a plan view of the glass plate structure, the main mount part is supported by the holder by the extension part whose end opposite to the main mount part overlaps with the holder.

(17) The glass diaphragm according to any one of (1) to (16), including a plurality of the extension parts, each of which is connected to one of the holders.
According to this glass diaphragm, the main mount part is supported by the holder with high support force by the plurality of extension parts connected to one holder.

(18) The glass diaphragm according to any one of (1) to (16), including a plurality of the extension parts and a plurality of the holders, and the plurality of extension parts are respectively connected to the plurality of holders. .
According to this glass diaphragm, the main mount part is supported by the holder with high support force by the plurality of extension parts respectively connected to the plurality of holders.

(19) The glass diaphragm according to any one of (1) to (18), wherein the glass plate structure is a sliding window for a vehicle.
According to this glass diaphragm, 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 vibration generated from the glass plate structure in the vehicle interior can be Can provide sound.

(20) A glass diaphragm with a vibrator, comprising the glass diaphragm according to any one of (1) to (19), and the vibrator connected to the connection part of the mount part.
According to this glass diaphragm with a vibrator, by fixing the connection part to the mount part fixed to the glass plate structure and attaching the vibrator to the mount part, the glass diaphragm can be connected to the oscillator equipped with the vibrator. It can be made into a glass diaphragm.

(21) A glass plate structure, a main mount part to which a vibrator for vibrating the glass plate structure is attached, a holder fixed to the glass plate structure, and an extension connecting the main mount part and the holder. A method for manufacturing a glass diaphragm, comprising:
attaching the main mount part and the holder to the glass plate structure;
The extension portion having a core layer and a covering portion that covers the core layer and has higher rigidity than the core layer is placed between the main mount portion and the holder without contacting the glass plate structure. A method of manufacturing a glass diaphragm that is connected to and fixed to.
According to this method of manufacturing a glass diaphragm, it is possible to manufacture a glass diaphragm in which the main mount part and the holder are attached to the glass plate structure, and the main mount part is supported by the holder by the extension part. Moreover, after the main mount part and the holder are attached to the glass plate structure, the extension part can be connected and fixed between the main mount part and the holder. In other words, the extension can be retrofitted and workability can be improved.
In the manufactured glass diaphragm, since the main mount part is connected to the holder by the extension part, the mount part to which the connection part fixed to the vibrator is attached can be firmly supported to the glass plate structure, and the glass plate Falling off of the vibrator from the component is suppressed.
Further, since the core layer and the extension portion having a covering portion that covers the core layer and has higher rigidity than the core layer are connected and fixed between the main mount portion and the holder without coming into contact with the glass plate structure. This makes it possible to suppress transmission of vibrations from the vibrator from the main mount part of the mount part to the holder while ensuring high strength of the extension part. Thereby, vibrations from the vibrator can be smoothly transmitted to the glass plate structure, and the acoustic effect can be enhanced.

(22) A glass plate structure; a main mount part to which a vibrator for vibrating the glass plate structure is attached; and a main mount part that is integrated with a covering part extending outside as a plate-shaped body; A method for manufacturing a glass diaphragm, comprising: a holder to be fixed;
attaching the main mount part and the holder to the glass plate structure;
A glass diaphragm, wherein an extension part including a portion in which a core layer having a lower rigidity than the covering part is laminated on the main surface of the covering part is connected and fixed to the holder without contacting the glass plate structure. manufacturing method.
According to this method of manufacturing a glass diaphragm, it is possible to manufacture a glass diaphragm in which the main mount part and the holder are attached to the glass plate structure, and the main mount part is connected to the holder by the extension part. Moreover, since the extension part, which includes the part where the core layer is laminated on the main surface of the covering part that is formed integrally with the main mount part and extends, is connected and fixed to the holder, the work of connecting the extension part and the main mount part is simplified. It can be omitted and work efficiency can be improved.
In the manufactured glass diaphragm, since the main mount part is connected to the holder by the extension part, the mount part to which the connection part fixed to the vibrator is attached can be firmly supported to the glass plate structure, and the glass plate Falling off of the vibrator from the component is suppressed.
In addition, since the extension part, which includes a core layer laminated on the main surface of the covering part with a core layer having lower rigidity than the covering part, is connected and fixed to the holder without contacting the glass plate structure, the extension part has a high While ensuring strength, vibrations from the vibrator can be suppressed from being transmitted from the main mount part of the mount part to the holder. Thereby, vibrations from the vibrator can be smoothly transmitted to the glass plate structure, and the acoustic effect can be enhanced.

(23) After the method for manufacturing a glass diaphragm according to (21) or (22),
A method of manufacturing a glass diaphragm with a vibrator, the method comprising: attaching the vibrator to the main mount part.
According to this method of manufacturing a glass diaphragm with a vibrator, a glass diaphragm with a vibrator can be manufactured in which the vibrator can be stably attached, and the quality of the sound emitted from the glass diaphragm is prevented from deteriorating and the vibrator from falling off is suppressed. Can be manufactured.

11 Glass diaphragm 13 Vibrator 14 Holder 15 Glass plate structure 15a First main surface 15b Second main surface 16 Holder 17 Mount part 19 Connection part 21 Main mount part 22 Projection part 22a Groove part 23 Extension part 23a One end (end part)
23b Other end (end)
23c Bent portion 35 Connecting portion 51 Core layer 53 First principal surface 55 Second principal surface 61 Coating portion 63 First coating portion 65 Second coating portion 100 Glass diaphragm with vibrator D Shortest distance η Damping coefficient

Claims (23)

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;
a holder that faces the first main surface of the glass plate structure along an edge of the glass plate structure,
The mount section includes a main mount section including a connection section to which the vibrator is attached, and an extension section that connects the main mount section and the holder,
The extension portion has a damping coefficient η of 0.01 or more, and is arranged at least partially apart from the glass plate structure. The glass diaphragm according to claim 1, wherein the extension portion includes a core layer and a covering portion that covers at least a portion of the core layer and has higher rigidity than the core layer. The core layer is arranged continuously from an end on the main mount part side to an end on the opposite side to the main mount part side in a plan view of the glass plate structure. Glass diaphragm. The glass diaphragm according to claim 2 or 3, wherein the core layer is made of resin. The glass diaphragm according to any one of claims 2 to 4, wherein the covering portion includes at least one of metal and hard plastic. The extension part is plate-shaped,
The core layer has a first main surface and a second main surface,
The glass diaphragm according to any one of claims 2 to 5, wherein the covering part has a first covering part disposed on the first main surface side. The glass diaphragm according to claim 6, wherein the covering section has a second covering section disposed on the second main surface side. When the extension part has a width in the width direction of the glass plate structure in a plan view as W, and a thickness corresponding to the normal direction of the first main surface of the glass plate structure as t,
The glass diaphragm according to any one of claims 1 to 7, having an aspect ratio (W/t) of 0.1 to 50. The glass diaphragm according to any one of claims 1 to 8, wherein the extension portion has at least one bent portion. The holder has a connecting portion outside an edge of the glass plate structure in a plan view of the glass plate structure,
The glass diaphragm according to any one of claims 1 to 9, wherein the extension part is connected to the connection part. The extension part is spaced apart from the glass plate structure,
A glass diaphragm according to any one of claims 1 to 10, wherein the medium between the glass plate arrangement and the extension is air. The glass diaphragm according to any one of claims 1 to 11, wherein the extension part has an end on the main mount part side mechanically fastened to the main mount part. 13. The glass diaphragm according to claim 12, wherein the extension part is disposed at a protrusion protruding from the main mount part in a plan view of the glass plate structure. The main mount part has a groove part on the wall surface,
13. The glass diaphragm according to claim 12, wherein an end of the extension part on the main mount part side is arranged inside the groove part. The glass diaphragm according to any one of claims 1 to 11, wherein at least a portion of the extension portion is formed integrally with the main mount portion. The glass diaphragm according to any one of claims 1 to 15, wherein the extension part has an end opposite to the main mount part that overlaps with the holder in a plan view of the glass plate structure. . The glass diaphragm according to any one of claims 1 to 16, comprising a plurality of said extension parts, each said extension part being connected to one said holder. The glass diaphragm according to any one of claims 1 to 16, comprising a plurality of said extension parts and a plurality of said holders, wherein said plurality of said extension parts are respectively connected to said plurality of said holders. The glass diaphragm according to any one of claims 1 to 18, 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 19, and the vibrator connected to the connection part of the mount part. a glass plate structure, a main mount part to which a vibrator for vibrating the glass plate structure is attached, a holder fixed to the glass plate structure, and an extension part connecting the main mount part and the holder; A method for manufacturing a glass diaphragm, comprising:
attaching the main mount part and the holder to the glass plate structure;
The extension portion having a core layer and a covering portion that covers the core layer and has higher rigidity than the core layer is placed between the main mount portion and the holder without contacting the glass plate structure. A method of manufacturing a glass diaphragm that is connected to and fixed to. A glass plate structure, a main mount part to which a vibrator for vibrating the glass plate structure is attached, and a covering part extending outwardly as a plate-shaped body are integrated, and fixed to the glass plate structure. A method for manufacturing a glass diaphragm, comprising: a holder;
attaching the main mount part and the holder to the glass plate structure;
A glass diaphragm, wherein an extension part including a portion in which a core layer having a lower rigidity than the covering part is laminated on the main surface of the covering part is connected and fixed to the holder without contacting the glass plate structure. manufacturing method. After the method for manufacturing a glass diaphragm according to claim 21 or 22,
A method of manufacturing a glass diaphragm with a vibrator, the method comprising: attaching the vibrator to the main mount part.

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