WO2023204133A1 - Glass diaphragm and glass diaphragm equipped with vibrator - Google Patents

Abstract

This glass diaphragm comprises: a glass-plate constituent body; a mount part which is fixed to the glass-plate constituent body; a connection part which is mounted to the mount part and fixed to a vibrator that vibrates the glass-plate constituent body; and a fastener which mechanically fixes the mount part and the connection part. At least one of the mount part and the connection part has a projection-recess portion toward the other one and is fitted with the same.

Description

Glass diaphragm and glass diaphragm with vibrator

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

In recent years, techniques have been studied to vibrate various plate-shaped members, such as members for electronic devices, window members for vehicles, and interior members of transportation machines such as vehicles, to function as speakers. For example, Patent Documents 1 to 5 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. In particular, regarding the connection structure between the attachment and the vibrator, fixing means such as a screw structure, a grip structure, a notch structure, and a hook structure are disclosed.

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

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

Therefore, the present invention provides a glass diaphragm and a vibrator that can stably attach a vibrator to a glass plate structure and suppress the deterioration of the quality of the sound emitted from the glass diaphragm and the falling off of the vibrator due to misalignment of the vibrator. The purpose is to provide glass diaphragms.

The present invention consists of the following configuration.
(1) A glass plate structure;
a mount portion fixed to the glass plate structure;
a connection part that is attached to the mount part and fixed to a vibrator that vibrates the glass plate structure;
a fastener that mechanically fixes the mount portion and the connection portion;
has
A glass diaphragm, wherein at least one of the mount portion and the connection portion has an uneven portion that fits into the other side.
(2) A glass diaphragm with a vibrator, comprising the glass diaphragm according to (1) and the vibrator.

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

FIG. 1 is a schematic plan view of a glass diaphragm. FIG. 2 is a schematic cross-sectional view of the glass diaphragm shown in FIG. 1 taken along line II-II. FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 2. FIG. 4 is an exploded perspective view of a fixing location between the mount section and the connection section of the vibrator. FIG. 5 is a schematic cross-sectional view taken along the first main surface of the glass plate structure for explaining how to attach the connection part to the mount part. FIG. 6 is a schematic cross-sectional view of a glass diaphragm explaining modification example 1. FIG. 7 is a schematic cross-sectional view of a glass diaphragm illustrating a second modification. FIG. 8 is a schematic cross-sectional view of a glass diaphragm explaining modification example 3. FIG. 9 is a schematic cross-sectional view of a glass diaphragm explaining modification example 4. FIG. 10A is a schematic cross-sectional view along the first main surface of a glass plate structure explaining Modification 5. FIG. FIG. 10B is a perspective view of a mount used in Modification 5. FIG. 11 is a perspective view of a mount used in Modification 6. FIG. 12A is a schematic cross-sectional view of a glass diaphragm explaining Modification Example 7. FIG. 12B is a perspective view of a mount used in Modification 7. FIG. 13 is a schematic cross-sectional view of a glass diaphragm explaining modification example 8. FIG. 14 is a schematic cross-sectional view of a glass diaphragm explaining modification example 9. FIG. 15A is a schematic cross-sectional view of a glass diaphragm illustrating Modification 10. FIG. 15B is a perspective view of a fastener used in Modification 10. FIG. 15C is a perspective view of another fastener used in Modification 10. FIG. 16 is a schematic cross-sectional view of a glass diaphragm illustrating Modification 11. FIG. FIG. 17 is a schematic cross-sectional view of a glass diaphragm explaining modification example 12.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The glass diaphragm with a vibrator of this embodiment includes a glass diaphragm and a vibrator that vibrates the glass diaphragm, and can be applied to, for example, vibrating a glass plate for a vehicle. In the following description, 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 described, but the applicable uses are not limited to this.

<Overall configuration of glass diaphragm>
FIG. 1 is a schematic plan view of the glass diaphragm 11. FIG. 2 is a schematic cross-sectional view of the glass diaphragm 11 shown in FIG. 1 taken along line II-II. FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 2. FIG. 4 is an exploded perspective view of a portion where the mount portion 17 and the connection portion 19 of the vibrator 13 are fixed. FIG. 5 is a schematic cross-sectional view taken along the first main surface 15a of the glass plate structure 15 for explaining how to attach the connecting part 19 to the mount part 17.

As shown in FIGS. 1 to 5, a vibrator 13 that generates vibration can be attached to the glass diaphragm 11. The vibrator 13 is fixed to the connecting portion 19 by at least one of mechanical fastening methods such as screws, bolts/nuts, rivets, keys, pins, etc., and adhesives. In this way, the glass diaphragm 11 includes the glass plate structure 15 , the mount section 17 , the connection section 19 , and the fastener 21 .

<Configuration of glass diaphragm with vibrator>
The glass diaphragm 11 is equipped with a vibrator 13 to constitute a glass diaphragm 100 with a vibrator. The vibrator 13 has a structure that is connected to and fixed to the connecting portion 19. 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. Thereby, the vibrator 13 is attached to the glass plate structure 15 via the connecting portion 19 and the mount portion 17.

The mount portion 17 is fixed to the glass plate structure 15. The connecting portion 19 is attached to the mount portion 17 , and the mount portion 17 and the connecting portion 19 are fixed by a fastener 21 . Thereby, the vibrator 13 is attached to one main surface 15a of the glass plate structure 15.

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, that is, in a region on the frame 16 side of the elevating mechanism (not shown). Thereby, the sound generated from the glass plate structure 15 can be supplied into the vehicle interior. Note that the belt line BL corresponds to the lower side of the opening when the side window is fully closed when the side window is attached to the vehicle (door).

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

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

<Mount part>
The mount 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), ABS resin, polybutylene terephthalate (PBT), and polyethylene terephthalate (PBT). Examples include phenylene sulfide (PPS), polystyrene (PS), nylon 66, etc., and can be made into a structure with excellent moldability. Furthermore, it is more preferable to use fiber-reinforced plastics containing glass fibers or carbon fibers. By using the above material, sufficient connection strength can be obtained without causing cracks or the like in the mount portion 17. The mount portion 17 may be made of a single material, or may be made of a composite material such as an aluminum alloy and stainless steel, or a resin material and stainless steel.

The mount portion 17 is formed into a circular shape in plan view, and is adhesively fixed to the first main surface 15a of the glass plate structure 15 with an adhesive layer 31. The mount portion 17 has a recess 33 on the side opposite to the side on which the glass plate structure 15 is fixed. The recess 33 has a circular shape when the glass plate structure 15 is viewed from above, and is formed at the center of the mount portion 17 . This recess 33 has a female thread 33a formed on its inner wall surface. Further, the mount portion 17 has a through hole 35 that penetrates in the radial direction at an intermediate portion in the thickness direction. The through-holes 35 are formed in the radial direction passing through the center of the mount portion 17 in a plan view of the glass plate structure 15, but one or more through-holes may be formed in a direction substantially orthogonal to the thickness direction, offset from the center. may be done.

<Connection part>
The connecting portion 19 may be formed of a different member from the casing of the vibrator 13 and firmly fixed thereto, or may be formed of the same member as the casing of the vibrator 13 and integrated. The connecting portion 19 has a convex portion 37 on the side to which it is attached to the mount portion 17 . This convex portion 37 has a male thread 37a formed on its outer wall surface. Furthermore, the connecting portion 19 has a through hole 39 that penetrates in the radial direction at an intermediate portion of the convex portion 37 in the protruding direction. The through hole 39 is formed in a radial direction passing through the center of the convex portion 37 of the connecting portion 19 in a plan view of the glass plate structure 15 .

In the connecting portion 19, a convex portion 37 having a male thread 37a is screwed into a recess 33 having a female thread 33a of the mount portion 17. Thereby, the thread structure consisting of the male thread 37a and the female thread 33a becomes a guide mechanism, and the connecting portion 19 is fixed at a predetermined position on the mount portion 17. In other words, the concave portion 33 of the mount portion 17 and the convex portion 37 of the connecting portion 19 constitute an uneven portion. Further, in a state in which the convex portion 37 of the connecting portion 19 is fitted into the recess 33 of the mount portion 17, the through holes 35 and 39 of the mount portion 17 and the connecting portion 19 communicate with each other. Note that the "guide mechanism" referred to here is not limited to a tightening mechanism using a screw structure, but also a mechanism that guides the engagement position of the protrusion 37 and the recess 33 in the thickness direction, and a mechanism that guides the engagement position of the convex part 37 and the concave part 33 at a desired angle. It also includes a mechanism for inducing this. Furthermore, the structure is not limited to a threaded structure, but also includes a so-called caulking mechanism in which a drawing process such as a taper is applied and the structure is fixed as the guide moves along the guidance.

<clasp>
The fastener 21 has a pin shape. As the fastener 21, for example, a metal split pin is used. This fastener 21 has a ring portion 23 at one end, and a pair of pin portions 25 extend from this ring portion 23 in the same direction. The pin portions 25 of the fastener 21 are inserted into through holes 35 and 39 of the mount portion 17 and the connecting portion 19, which communicate with each other, and the tip portions are bent. These pin portions 25 are bent toward opposite sides and are in contact with the outer wall of the mount portion 17 . Note that the outer edge of the ring portion 23 is not limited to a substantially circular shape (see FIG. 2), but may have an arbitrary outer edge shape such as a polygon.

<Resonator mounting structure>
The convex part 37 of the connecting part 19 is screwed into the concave part 33 of the mount part 17 fixed to the glass plate structure 15, and in this state, the mount part 17 and the connecting part communicate with each other. The fasteners 21 are inserted through the through holes 35 and 39 of 19. As a result, the fastener 21 is locked to the mount portion 17 and the connecting portion 19 without loosening, and the fastener 21 maintains a good attachment state between the mount portion 17 and the connecting portion 19.

As a result, in the glass diaphragm 11, the mount portion 17 and the connecting portion 19 of the vibrator 13 are mechanically fixed by the fasteners 21, and the vibrator 13 is stably attached. Therefore, it is possible to prevent the quality of the sound emitted from the glass diaphragm 11 from deteriorating and the vibrator 13 from falling off due to misalignment of the vibrator 13. Here, "falling off of the vibrator 13" includes not only the falling off of the vibrator 13 alone, but also the case where the connecting part 19 fixed to the vibrating element 13 falls off from the mount part 17. Note that the number of fasteners 21 that mechanically fix the mount portion 17 and the connecting portion 19 of the vibrator 13 may be one or more.

In the state in which the mount portion 17 and the connecting portion 19 are attached by the fastener 21, the fastener 21 is preferably attached within 10 mm from the first main surface 15a, which is the main surface of the glass plate structure 15, and preferably within 5 mm. It is preferable that they are attached within 3 mm, and more preferably that they are attached within 3 mm. Note that the lower limit of the fastener 21 from the first main surface 15a may be at least 0.1 mm or more. As a result, the bulkiness of the mounting portion of the vibrator 13 on the glass diaphragm 11 is suppressed, and the height of the vibrator 13 is reduced.

It is preferable that at least one of the inner wall of the through hole 39 of the connecting part 19 and the surface of the pin part 25 of the fastener 21 contain resin at the location where the mount part 17 and the connecting part 19 are fixed. The resin preferably contains at least one selected from adhesives, pressure-sensitive adhesives, rubber, and grease. In this way, if resin is provided on at least one of the inner wall of the through hole 39 of the connecting portion 19 and the surface of the pin portion 25 of the fastener 21, the inner wall of the through hole 39 and the surface of the pin portion 25 are in close contact with each other, and the mount The attachment strength of the connection part 19 to the part 17 by the fastener 21 can be increased.

<Reinforcement of fixed points>
In order to increase the attachment strength of the connection part 19 to the mount part 17 by the fastener 21, it is more preferable that the inner wall of the through hole of the mount part is made of a high-strength metal such as stainless steel. For example, a high-strength metal such as stainless steel may be embedded in the mount base material in the inner wall or outer wall portion in contact with the fastener 21 to improve the mechanical strength of the portion in contact with the fastener 21 and the attachment strength of the connecting portion 19.
The mount portion may be made of a single material, but as described above, the connection portion may be made of a composite material made of high-strength metal.

<How to attach the connection part to the mount>
To attach the connection part 19 of the vibrator 13 to the mount part 17, first screw the convex part 37 of the connection part 19 into the recess 33 of the mount part 17, and communicate the through holes 35, 39 of the mount part 17 and the connection part 19. (See Figure 5). Next, the pin portion 25 of the fastener 21 is inserted into the through holes 35 and 39 of the mount portion 17 and the connecting portion 19, which communicate with each other, until the ring portion 23 abuts the outer wall surface of the mount portion 17. Then, the tips of the pin portions 25 of the fasteners 21 protruding from the outer wall surface of the mount portion 17 are bent toward opposite sides so as to contact the outer wall of the mount portion 17. As a result, the fastener 21 is secured to the fixed location between the mount portion 17 and the connecting portion 19 without loosening, and a good state of attachment between the mount portion 17 and the connecting portion 19 by the fastener 21 is maintained (see FIG. (See 3).

<How to remove the connection part from the mount>
In order to remove the connecting part 19 attached to the mount part 17 from the mount part 17, for example, the fastener 21 is broken and removed using a tool such as pliers. Thereafter, the protrusion 37 of the connecting part 19 screwed into the recess 33 of the mount part 17 is loosened and removed. Thereby, the connecting portion 19 can be removed from the mount portion 17 in a non-destructive manner. In this way, by removing the fastener 21, the mount part 17 and the connecting part 19 can be removed in a non-destructive state, so the mount part 17 and the connecting part 19 can be reused after being removed. Therefore, when the vibrator 13 breaks down or is upgraded, the vibrator 13 or the member in which the connecting portion 19 and the vibrator 13 are integrated can be easily replaced.

As described above, according to the glass diaphragm 11 of this configuration example, the mount portion 17 and the connecting portion 19 of the vibrator 13 are mechanically fixed by the fasteners 21. Thereby, the vibrator 13 can be stably attached to the glass plate structure 15, and it is possible to prevent the quality of the sound emitted from the glass diaphragm 11 from deteriorating and the vibrator 13 from falling off due to displacement of the vibrator 13. Furthermore, the members locked by the fasteners 21 can be separated non-destructively.

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

Note that in the above configuration example, a split pin having a pair of pin portions 25 is used as the fastener 21, but the fastener 21 may have one pin portion 25. In this case, with one end of the pin part 25 bent, the other end is inserted into the through holes 35 and 39 of the mount part 17 and the connecting part 19 that communicate with each other, and the pin part protrudes from the outer wall surface of the mount part 17. The other end of 25 is bent so as to contact the outer wall of mount portion 17. As a result, the fastener 21 having one pin portion 25 is locked to the mount portion 17 and the connecting portion 19 without loosening, and the fastener 21 ensures a good attachment state between the mount portion 17 and the connecting portion 19. maintained. Furthermore, the fastener 21 having one pin portion 25 may have a wedge shape in which the thickness gradually decreases toward the tip, and in this case, a through hole in the vicinity of the root of the pin portion 25 may be used. By pressing the inner walls of 35 and 39, these are firmly locked. Note that when one pin portion 25 has a wedge shape, the tip of the pin portion 25 may or may not protrude from the outer wall surface of the mount portion 17.

The mounting structure between the mount portion 17 and the connecting portion 19 in the glass diaphragm 11 of this configuration example described above is one example, and can be changed to various configurations.
Hereinafter, a modification of the mounting structure between the mount portion 17 and the connecting portion 19 will be described. In addition, in the following description, the same or corresponding parts or members will be given the same or corresponding reference numerals, thereby omitting redundant explanation.

(Modification 1)
FIG. 6 is a schematic cross-sectional view of the glass diaphragm 11 illustrating the first modification.
As shown in FIG. 6, in Modification 1, the mount portion 17 has a convex portion 41 on the side opposite to the glass plate structure 15 side. A male screw 41a is formed on the outer wall surface of the convex portion 41, and a through hole 43 that penetrates in the radial direction is formed in the intermediate portion in the protruding direction. Furthermore, the connecting portion 19 has a recess 45 on the side where it is attached to the mount portion 17 . A female thread 45a is formed on the inner wall surface of the recess 45, and a through hole 47 that penetrates in the radial direction is formed in the intermediate portion in the thickness direction.

In the first modification, the convex portion 41 of the mount portion 17 fixed to the glass plate structure 15 is screwed into the concave portion 45 of the connecting portion 19. Further, a fastener 21 is inserted into the through holes 43 and 47 that communicate with each other when the convex part 41 of the mount part 17 is screwed into the recess 45 of the connecting part 19. It is locked to the connecting part 19.

Also in the case of the first modification, the mount portion 17 and the connecting portion 19 of the vibrator 13 are mechanically fixed by the fasteners 21, so that the vibrator 13 can be stably attached to the glass plate structure 15. Further, by removing the fastener 21, the vibrator 13 or the member in which the connecting portion 19 and the vibrator 13 are integrated can be removed from the glass plate structure 15, so the vibrator 13 can be easily replaced.

(Modification 2)
FIG. 7 is a schematic cross-sectional view of the glass diaphragm 11 illustrating a second modification.
As shown in FIG. 7, in Modification 2, the connecting portion 19 includes a disc-shaped (cylindrical) convex portion 37 having a through hole 39, and a male thread 37a is formed on the outer wall surface of the convex portion 37. . In other words, the connecting portion 19 has a disc shape with no step in the thickness direction. In the second modification, the mount portion 17 is provided with a recess 33 having a female thread 33a on the inner wall surface on the mounting side of the connection portion 19, and a through hole 35 that penetrates in the radial direction.

In this modification 2, the convex portion 37 of the connecting portion 19 is screwed into the concave portion 33 of the mount portion 17 fixed to the glass plate structure 15. Furthermore, in a state where the convex part 37 of the connecting part 19 is screwed into the concave part 33 of the mount part 17, the through holes 35 and 39 are communicated with each other, and the fastener 21 is inserted into the through holes 35 and 39 which are communicated with each other. and both ends are locked to the mount portion 17.

In this modification example 2, the connecting portion 19 is composed of a disc-shaped convex portion 37 having no step in the thickness direction, thereby simplifying the shape of the connecting portion 19 and reducing the height of the mounting location of the vibrator 13. I can figure it out. In addition, in the modification 2, as shown in FIG. 7, the mount portion 17 may be a recessed portion 33 that penetrates from the front to the back, or may be a concave portion 33 that does not penetrate from the front to the back but is continuous on the side facing the first main surface 15a of the glass plate structure 15. The recess may have a flat surface.

(Modification 3)
FIG. 8 is a schematic cross-sectional view of the glass diaphragm 11 explaining the third modification.
As shown in FIG. 8, in the third modification, the mount portion 17 includes a disc-shaped (cylindrical) convex portion 41 having a through hole 43, and a male screw 41a is provided on the outer wall surface of the convex portion 41 of the mount portion 17. It is formed. In the third modification, the connecting portion 19 is formed with a recess 45 having a female thread 45a on the inner wall surface on the side where it is attached to the mount portion 17, and a through hole 47 that penetrates in the radial direction.

In this third modification, the convex portion 41 of the mount portion 17 is screwed into the concave portion 45 of the connecting portion 19. Furthermore, with the convex part 41 of the mount part 17 screwed into the concave part 45 of the connecting part 19, the through holes 43 and 47 are communicated with each other, and the fastener 21 is inserted into the through holes 43 and 47 which are communicated with each other. and both ends are locked to the connecting part 19.

In this third modification, the mount portion 17 is formed of the disc-shaped convex portion 41, so that the shape of the mount portion 17 can be simplified and the height of the mounting portion of the vibrator 13 can be reduced.

(Modification 4)
FIG. 9 is a schematic cross-sectional view of the glass diaphragm 11 illustrating a fourth modification.
As shown in FIG. 9, in the fourth modification, the connecting portion 19 includes a disc-shaped (cylindrical) convex portion 37, and a male thread 37a is formed on the outer wall surface of the convex portion 37 of the connecting portion 19. This connecting portion 19 has approximately the same diameter as the vibrator 13. In the fourth modification, the mount portion 17 is formed with a recess 33 having a female thread 33a on the inner wall surface on the mounting side of the connection portion 19, and further has a through hole 35 that penetrates in the radial direction.

In this modification 4, the convex portion 37 of the connecting portion 19 is screwed into the concave portion 33 of the mount portion 17 fixed to the glass plate structure 15. In other words, (the convex portion 37 of) the connecting portion 19 has approximately the same diameter as the concave portion 33 of the mount portion 17. Furthermore, in a state where the convex part 37 of the connecting part 19 is screwed into the concave part 33 of the mount part 17, the through holes 35 and 39 are communicated with each other, and the fastener 21 is inserted into the through holes 35 and 39 which are communicated with each other. and both ends are locked to the mount portion 17. Further, in the fourth modification, the vibrator 13 is housed in the recess 33 of the mount portion 17 together with the connecting portion 19 .

In this modification example 4, the vibrator 13 is accommodated in the recess 33 of the mount portion 17 together with the disc-shaped (column-shaped) convex portion 37 of the connecting portion 19, so that the height of the mounting location of the vibrator 13 is reduced. In addition, the outer periphery of the vibrator 13 can be protected by the mount portion 17.

(Modification 5)
FIG. 10A is a schematic cross-sectional view taken along the first main surface 15a of the glass plate structure 15 explaining Modification 5. FIG. FIG. 10B is a perspective view of the mount section 17 used in Modification Example 5.

As shown in FIGS. 10A and 10B, in modification 5, the mount portion 17 is formed into a polygonal shape having a plurality of corners 17a in plan view. In this example, the mount portion 17 is formed in a hexagonal shape in plan view.

In this modification 5, the pin part 25 of the fastener 21 is inserted into the through holes 35 and 39 of the mount part 17 and the connecting part 19, which communicate with each other, until the ring part 23 comes into contact with the outer wall surface of the mount part 17. There is. The pin portion 25 of the fastener 21 protruding from the outer wall surface of the mount portion 17, that is, the two tip portions of the split pin, are bent toward opposite sides so as to contact the outer wall of the mount portion 17.

In this modification 5, since the mount part 17 is formed in a hexagonal shape in plan view, when the tip of the pin part 25 of the fastener 21 is bent and aligned with the outer wall surface of the mount part 17, the mount part 17 is It is bent at the corner 17a. Thereby, the locking force of the fastener 21 to the mount portion 17 can be increased.

(Modification 6)
FIG. 11 is a perspective view of the mount section 17 used in Modification 6.
As shown in FIG. 11, in Modification 6, the mount portion 17 has a plurality of through holes 35 that penetrate in the radial direction. These through holes 35 are formed at three locations (six single holes) in the radial direction passing through the center of the mount portion 17, respectively. The outer edge of the mount portion 17 is formed into a regular hexagonal shape having a plurality of corners 17a in a plan view, but it may also be circular in a plan view, and is not limited to a regular hexagonal shape, but may have an arbitrary polygonal shape or a partial shape. It may also have a curved shape.

In this modification 6, since the mount part 17 has a plurality of through holes 35, when attaching the connecting part 19, the through hole 39 of the convex part 37 of the connecting part 19 fitted into the concave part 33 of the mount part 17 is mounted. It can be easily communicated with the through hole 35 of the portion 17. Thereby, the workability of attaching the connecting portion 19 to the mount portion 17 can be improved. Note that the mount portion 17 in Modification 6 may be connected to the connecting portion 19 using not only one but two or more fasteners 21.

(Modification 7)
FIG. 12A is a schematic cross-sectional view of the glass diaphragm 11 explaining Modification Example 7. FIG. 12B is a perspective view of the mount portion 17 used in Modification Example 7.
As shown in FIGS. 12A and 12B, in Modification 7, the mount portion 17 has a plurality of through grooves 36 that penetrate in the radial direction on the side fixed to the glass plate structure 15. These through grooves 36 are each formed in a radial direction passing through the center of the mount portion 17 . Note that although the mount portion 17 is formed in a hexagonal shape having a plurality of corners 17a in a plan view, it may have a circular shape in a plan view. Furthermore, at least one through groove 36 that penetrates the mount portion 17 in the radial direction may be provided.

In Modification 7, the mount portion 17 is fixed to the glass plate structure 15 with the end surface 17b on the side where the through groove 36 is formed in contact with the adhesive layer 31. As a result, when the mount part 17 is fixed to the glass plate structure 15 by the adhesive layer 31, a radial hole formed by the through groove 36 is formed on the glass plate structure 15 side of the mount part 17. In modification 7, with the convex portion 37 of the connecting portion 19 screwed into the recess 33 of the mount portion 17 fixed to the glass plate structure 15, the through groove 36 of the mount portion 17 and the through hole 39 of the connecting portion 19 are connected to each other. are being communicated. The pin portion 25 of the fastener 21 is inserted through the communicating through groove 36 and the through hole 39, and both ends of the fastener 21 are locked to the mount portion 17.

In this modification 7, since the portion through which the pin portion 25 of the fastener 21 is inserted is the through groove 36, the wall thickness of the mount portion 17 can be reduced, and the height can be further reduced.

(Modification 8)
FIG. 13 is a schematic cross-sectional view of the glass diaphragm 11 explaining modification example 8.
As shown in FIG. 13, in the mount part 17 having the recess 33, the inner peripheral part 34a that contacts the convex part 37 of the connecting part 19 is made of metal, and the outer peripheral part outside the inner peripheral part 34a 34b is a material with a specific gravity lower than that of metal. Resin is preferable as a material having a specific gravity lower than metal constituting this outer peripheral portion 34b.

In this modification 8, since the inner circumferential portion 34a of the mount portion 17 that contacts the convex portion 37 in the recessed portion 33 is made of metal, durability and strength are increased. Further, since the outer peripheral portion 34b of the recess 33 includes a material having a specific gravity lower than that of metal, it can be made lightweight. In particular, if the outer peripheral part 34b is made of resin, it can be easily and firmly adhesively fixed to the glass plate structure 15 by the adhesive layer 31. In Modification 8 of FIG. 13, the bottom surface of the recess 33 of the mount portion 17 is shaped to be in contact with the upper surface of the convex portion 37 of the connecting portion 19, but the mount portion 17 may be a recess that penetrates from the front and back.

(Modification 9)
FIG. 14 is a schematic cross-sectional view of the glass diaphragm 11 explaining Modification 9. FIG.
As shown in FIG. 14, in modification 9, a through hole 15c is formed in the glass plate structure 15. Further, the mount portion 17 has a convex portion 41 . This mount portion 17 is attached to the glass plate structure 15 from the second main surface 15b side and is adhesively fixed by an adhesive layer 31. The convex portion 41 of this mount portion 17 penetrates through the through hole 15c of the glass plate structure 15, and protrudes from the first main surface 15a.

In this modification 9, the convex portion 41 of the mount portion 17 fixed to the glass plate structure 15 is screwed into the concave portion 45 of the connecting portion 19. Further, a fastener 21 is inserted into the through holes 43 and 47 that communicate with each other when the convex part 41 of the mount part 17 is screwed into the recess 45 of the connecting part 19. It is locked to the connecting part 19. Although omitted in Modified Example 9 shown in FIG. It may also be fixed via the Furthermore, in the glass diaphragm 11 of Modification 9, a resin (adhesive layer) such as an adhesive or adhesive is applied between the outer periphery of the through hole 15c in the mount portion 17 and the inner periphery of the through hole 15c in the glass plate structure 15. It may be fixed via.

In this modification 9, since the mount portion 17 passes through the through hole 15c of the glass plate structure 15, the vibrator 13 can be stably attached to the glass plate structure 15. In particular, in this modification 9, there is a very low possibility that the mount portion 17 will peel off from the glass plate structure 15. Further, the mount portion 17 may be provided with an antenna or radar function that transmits radio waves through the through hole 15c of the glass plate structure 15. Further, the mount section 17 may be provided with a temperature sensor, a humidity sensor, an acceleration sensor, a rain sensor, a pressure sensor, etc., and various information may be fed back from the mount section 17 to the automobile.

(Modification 10)
FIG. 15A is a schematic cross-sectional view of the glass diaphragm 11 explaining Modification 10. FIG. 15B is a perspective view of a fastener 57 used in Modification 10. FIG. 15C is a perspective view of another fastener 57 used in Modification 10.
As shown in FIG. 15A, in the case of Modification 10 as well, a through hole 15c is formed in the glass plate structure 15. Moreover, the mount part 17 has a recess 33 penetrating the front and back sides, and the mount part 17 is bonded to the first main surface 15a of the glass plate structure 15 so that the recess 33 communicates with the through hole 15c. It is adhesively fixed by layer 31. Further, another mount portion 51 is adhesively fixed to the second main surface 15b of the glass plate structure 15 with an adhesive layer 53. This mount portion 51 also has a recess 55 passing through the front and back, and this recess 55 communicates with the through hole 15c of the glass plate structure 15.

In the connecting portion 19, the convex portion 37 is fitted into the recess 33 of the mount portion 17, the through hole 15c of the glass plate structure 15, and the recess 55 of the other mount portion 51 from the first main surface 15a side of the glass plate structure 15. , protrudes from the other mount portion 51 to the side opposite to the glass plate structure 15.

In this modification 10, the fastener 21 is inserted into the through holes 35 and 39 that communicate with each other with the convex portion 37 of the connecting portion 19 fitted into the recess 33 of the mount portion 17. Both ends are locked to the mount portion 17.

Furthermore, in Modification 10, a fastener 57 is attached to the convex portion 37 of the connecting portion 19 that protrudes from the other mount portion 51 to the side opposite to the glass plate structure 15. In a state where the mount portion 51 and the connecting portion 19 are attached by the fastener 57, the fastener 57 is preferably attached within 10 mm, and preferably within 5 mm from the second main surface 15b of the glass plate structure 15. It is preferable that they are attached within 3 mm. Note that the lower limit of the fastener 57 from the second main surface 15b may be at least 0.1 mm or more.

As shown in FIG. 15B, this fastener 57 is made of a snap ring. The fastener 57 made of this snap ring is made of a metal material such as spring steel, for example, and is formed in a C-shape with a notch in a portion in the circumferential direction. This fastener 57 has an engagement hole 59 at its end for engaging a tool. This fastener 57 is arranged on the outer periphery of the convex part 37 of the connecting part 19 while engaging the engagement hole 59 and expanding the diameter, and in this state, by releasing the diameter expansion by the tool, the connecting part It is crimped to the outer circumference of the convex portion 37 of No. 19. Thereby, the fastener 57 serves as a stopper mechanism to prevent the connecting part 19 from coming off from the other mount part 51.

In this manner, in Modification 10, the connecting portion 19 that is locked to the mount portion 17 by the fastener 21 is further locked to another mount portion 51 by the fastener 57. Thereby, the mount portion 17 (and the mount portion 51) and the connection portion 19 of the vibrator 13 can be mechanically fixed more firmly.

In Modification 10, the fastener 57 that is crimped onto the convex portion 37 of the connecting portion 19 includes a plurality of locking claws that lock the outer circumferential portion of the convex portion 37 of the connecting portion 19, as shown in FIG. 15C. It may also be an E-shaped snap ring in which 57a is provided on the inner periphery. The fastener 57 made of this E-shaped snap ring is fitted into the convex portion 37 of the connecting portion 19 from the side and crimped.

(Modification 11)
FIG. 16 is a schematic cross-sectional view of the glass diaphragm 11 illustrating Modification 11. FIG.
As shown in FIG. 16, Modification 11 has a mounting structure of a type in which the mount part 17 in Modification 10 is not provided, and a connecting part 19 that protrudes from another mount part 51 to the side opposite to the glass plate structure 15. A fastener 57 is attached to the protrusion 37.

Also in the case of Modification 11, the other mount portion 51 and the connecting portion 19 of the vibrator 13 are mechanically fixed by the fasteners 57, so that the vibrator 13 can be stably attached to the glass plate structure 15. Moreover, since the vibrator 13 can be removed from the glass plate structure 15 by removing the fastener 57, the vibrator 13 or the member in which the connecting portion 19 and the vibrator 13 are integrated can be easily replaced. Although omitted in Modification Example 11 shown in FIG. 15 through a resin (adhesive layer) such as an adhesive or a pressure-sensitive adhesive.

(Modification 12)
FIG. 17 is a schematic cross-sectional view of the glass diaphragm 11 explaining modification 12.
As shown in FIG. 17, in Modification 12, the mount portion 17 has a screw hole 61 that passes through the outer wall surface and the inner wall surface of the recess 33. As shown in FIG. Furthermore, the connecting portion 19 has an engagement hole 63 on the outer wall surface of the convex portion 37 .

In this modification 12, the screw hole 61 of the mount portion 17 and the engagement hole 63 of the connection portion 19 are communicated with each other with the convex portion 37 of the connection portion 19 screwed into the recess 33 of the mount portion 17. In this state, a fastener 65 made of a pin-shaped screw is screwed into the screw hole 61 of the mount portion 17, and its tip enters the engagement hole 63.

Also in the case of Modification 12, the mount portion 17 and the connecting portion 19 of the vibrator 13 are mechanically fixed by the fasteners 65, so that the vibrator 13 can be stably attached to the glass plate structure 15. Further, the vibrator 13 can be removed from the glass plate structure 15 by loosening and removing the fastener 65, so that the vibrator 13 or the member in which the connecting portion 19 and the vibrator 13 are integrated can be easily replaced. In modification 12 shown in FIG. 17, the mount part 17 has a shape in which the bottom surface of the recess 33 contacts the top surface of the convex part 37 of the connecting part 19, but the mount part 17 has a recess that penetrates from the front and back. It may have.

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 portion fixed to the glass plate structure;
a connection part that is attached to the mount part and fixed to a vibrator that vibrates the glass plate structure;
a fastener that mechanically fixes the mount portion and the connection portion;
has
A glass diaphragm, wherein at least one of the mount portion and the connection portion has an uneven portion that fits into the other side.
According to the glass diaphragm having this configuration, the mount portion and the connecting portion of the vibrator are mechanically fixed using fasteners. Thereby, the vibrator can be stably attached to the glass plate structure, and it is possible to suppress the quality of the sound emitted from the glass diaphragm from deteriorating and the vibrator from falling off due to misalignment of the vibrator. Further, since the vibrator can be removed from the glass plate structure by removing the fastener, the vibrator can be easily replaced.

(2) The glass diaphragm according to (1), wherein the fastener is attached within 10 mm from one principal surface of the glass plate structure.
According to the glass diaphragm having this configuration, the fasteners are attached within 10 mm from one main surface of the glass plate structure, so it is possible to reduce the height of the vibrator attachment location.

(3) The connecting portion has at least one through hole,
The glass diaphragm according to (1) or (2), wherein the fastener passes through the through hole.
According to the glass diaphragm having this configuration, the mounting portion and the connecting portion can be firmly attached using the fasteners passed through the through holes of the connecting portion, thereby increasing reliability.

(4) The glass diaphragm according to (3), wherein the fastener has a pin shape with a bent tip and is fixed.
According to the glass diaphragm having this configuration, the pin-shaped fastener that fixes the mount part and the connecting part is locked at the fixing location by the bent tip part. This maintains a good attachment state between the mount section and the connection section using the fastener.

(5) The glass diaphragm according to (4), wherein the fastener has a bent tip and is in contact with an outer wall of the mount portion or the connection portion.
According to the glass diaphragm having this configuration, the end portion of the fastener is bent in contact with the outer wall of the mount portion or the connecting portion, so that the fastener is securely locked to the fixed location without loosening. This maintains a good attachment state between the mount section and the connection section using the fastener.

(6) The mount section has at least one through hole or through groove,
The glass diaphragm according to (4) or (5), wherein the fastener passes through the through hole or the through groove of the mount section.
According to the glass diaphragm having this configuration, the mount portion and the connecting portion can be easily attached using fasteners passed through the through holes or through grooves of the mount portion.

(7) The glass diaphragm according to any one of (3) to (6), wherein at least one of the inner wall of the through hole of the connecting portion and the surface of the fastener includes resin.
According to the glass diaphragm having this configuration, the attachment strength of the connection part to the mount part by the fastener can be increased by the resin provided on at least one of the inner wall of the through hole of the connection part and the surface of the fastener.

(8) The glass diaphragm according to (7), wherein the resin includes at least one selected from adhesives, pressure-sensitive adhesives, rubber, and grease.
According to the glass diaphragm having this configuration, the attachment strength of the connection part to the mount part by the fastener is increased by at least one resin selected from adhesive, pressure-sensitive adhesive, rubber, and grease.

(9) The glass diaphragm according to any one of (1) to (8), wherein the mount part and the connection part are attached with a guide mechanism that fixes them in a predetermined position.
According to the glass diaphragm having this configuration, the guide mechanism fixes the mount part and the connection part in a predetermined position, so that the attachment strength of the connection part to the mount part can be further increased.

(10) The glass diaphragm according to (9), wherein the guide mechanism has a threaded structure.
According to the glass diaphragm with this configuration, the mount part and the connection part are fixed in a predetermined position by the guide mechanism having a screw structure, so the mount part and the connection part are attached in a stable state, and the installation strength is increased. be enhanced.

(11) Among the uneven portions, the inner circumferential portion of the concave portion that contacts the convex portion is made of metal, and the outer circumferential portion outside the inner circumferential portion includes a material having a specific gravity lower than that of the metal. ) to (10).
According to the glass diaphragm having this configuration, since the inner circumferential portion of the recess that contacts the convex portion is made of metal, durability and strength are improved. Furthermore, since the outer peripheral portion of the recess includes a material having a specific gravity lower than that of metal, it can be made lightweight.

(12) The glass diaphragm according to (11), wherein the low specific gravity material included in the outer peripheral portion is a resin.
According to the glass diaphragm having this configuration, since the outer peripheral portion of the recess is made of resin, it can be easily and firmly adhesively fixed to the glass plate structure.

(13) The mount portion has the uneven portion,
The connecting portion is attached to the recessed portion of the uneven portion,
The glass diaphragm according to any one of (1) to (12), wherein the fastener has a stopper mechanism that is crimped to the outer periphery of the connecting portion.
According to the glass diaphragm having this configuration, the fastener is crimped to the outer circumferential portion of the connecting portion, thereby preventing the connecting portion from coming off from the mount portion.

(14) The glass diaphragm according to (13), wherein the fastener is a snap ring.
According to the glass diaphragm having this configuration, since the fastener is a snap ring, the fastener can be easily tightened to the outer circumferential portion of the connecting portion to prevent the connecting portion from coming off from the mount portion.

(15) The glass diaphragm according to any one of (1) to (14), wherein at least one of the mount portion and the connection portion penetrates the glass plate structure.
According to the glass diaphragm having this configuration, since at least one of the mount portion and the connecting portion passes through the through hole of the glass plate structure, the vibrator can be stably attached to the glass plate structure.

(16) The mount portion and the connection portion are located on one main surface side of the glass plate structure, and the mount portion is fixed to the one main surface by an adhesive layer, (1) to (14). ) The glass diaphragm according to any one of the above.
According to the glass diaphragm having this configuration, the mount portion is fixed to one main surface of the glass plate structure by the adhesive layer. Thereby, the connection part can be attached to the mount part, and the vibrator can be stably attached to the glass plate structure.

(17) The glass diaphragm according to any one of (1) to (16), wherein the mount portion and the connection portion attached by the fasteners are removable in a non-destructive state.
According to the glass diaphragm having this configuration, the mount part and the connecting part can be removed non-destructively by removing the fasteners, so the mount part and the connecting part can be reused after being removed.

(18) The glass diaphragm according to (17), wherein the fastener is a member that can be removed by destruction.
According to the glass diaphragm having this configuration, the mounting portion and the connecting portion can be easily removed by breaking and removing the fasteners.

(19) A glass diaphragm with a vibrator, comprising the glass diaphragm according to any one of (1) to (18) and the vibrator.
According to the glass diaphragm with a vibrator having this configuration, by mechanically fixing the connecting portion to the glass plate structure, the glass diaphragm can be made into a glass diaphragm with a vibrator including a vibrator.

Note that this application is based on a Japanese patent application (Japanese Patent Application No. 2022-068984) filed on April 19, 2022, and the contents thereof are incorporated as a reference in this application.

11 Glass diaphragm 13 Vibrator 15 Glass plate structure 15a First principal surface 15b Second principal surface 15c Through hole 17 Mount portion 19 Connection portion 21 Fastener 31 Adhesive layer 33 Recess 33a Female thread (guide mechanism)
34a Inner peripheral part 34b Outer peripheral part 35 Through hole 36 Through groove 37 Convex part 37a Male thread (guide mechanism)
39 Through hole 41 Convex portion 41a Male thread (guide mechanism)
43 Through hole 45 Recess 45a Female thread (guide mechanism)
47 Through hole 51 Other mount part 53 Adhesive layer 55 Recessed part 57 Fastener 100 Glass diaphragm with vibrator

Claims (19)

1. a glass plate structure;
   a mount portion fixed to the glass plate structure;
   a connection part that is attached to the mount part and fixed to a vibrator that vibrates the glass plate structure;
   a fastener that mechanically fixes the mount portion and the connection portion;
   has
   A glass diaphragm, wherein at least one of the mount portion and the connection portion has an uneven portion that fits into the other side.
2. The glass diaphragm according to claim 1, wherein the fastener is attached within 10 mm from one principal surface of the glass plate structure.
3. The connecting portion has at least one through hole,
   The glass diaphragm according to claim 1, wherein the fastener passes through the through hole.
4. The glass diaphragm according to claim 3, wherein the fastener has a pin shape with a bent tip and is fixed.
5. The glass diaphragm according to claim 4, wherein the fastener has a bent tip and is in contact with an outer wall of the mount portion or the connection portion.
6. The mount portion has at least one through hole or through groove,
   The glass diaphragm according to claim 4, wherein the fastener passes through the through hole or the through groove of the mount section.
7. The glass diaphragm according to claim 3, wherein at least one of the inner wall of the through hole of the connecting portion and the surface of the fastener includes resin.
8. The glass diaphragm according to claim 7, wherein the resin includes at least one selected from adhesives, pressure-sensitive adhesives, rubber, and grease.
9. The glass diaphragm according to claim 1, wherein the mount part and the connection part are attached with a guide mechanism that fixes them in a predetermined position.
10. The glass diaphragm according to claim 9, wherein the guide mechanism has a threaded structure.
11. According to claim 1, of the uneven portion, the inner peripheral portion of the recessed portion that contacts the convex portion is made of metal, and the outer peripheral portion outside the inner peripheral portion includes a material having a specific gravity lower than that of the metal. glass diaphragm.
12. The glass diaphragm according to claim 11, wherein the low specific gravity material included in the outer peripheral portion is a resin.
13. The mount portion has the uneven portion,
    The connecting portion is attached to the recessed portion of the uneven portion,
    The glass diaphragm according to claim 1, wherein the fastener has a stopper mechanism that is crimped to an outer peripheral portion of the connecting portion.
14. The glass diaphragm according to claim 13, wherein the fastener is a snap ring.
15. The glass diaphragm according to claim 1, wherein at least one of the mount portion and the connection portion penetrates the glass plate structure.
16. The glass diaphragm according to claim 1, wherein the mount part and the connection part are located on one main surface side of the glass plate structure, and the mount part is fixed to the one main surface by an adhesive layer. .
17. The glass diaphragm according to claim 1, wherein the mount portion and the connection portion attached by the fasteners are removable in a non-destructive state.
18. The glass diaphragm according to claim 17, wherein the fastener is a member that can be removed by destruction.
19. A glass diaphragm with a vibrator, comprising the glass diaphragm according to any one of claims 1 to 18 and the vibrator.

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