Method for installing sound deadening material in vehicle doors and sound deadening structure in vehicle doors

Abstract

This design aims to suppress the impact of sound emitted from a speaker mounted on the door panel on the back of the door, while minimizing any decrease in workability. [Solution] A flexible sheet 60 is used as a sound deadening material, and the flexible sheet 60 is fixed to the door trim 40, thereby configuring a unit 8, in which the flexible sheet 60 is fixed to the door trim 40, to be detachable from the door body 10. When attaching the unit 8 to the door body 10, the door trim 40 is attached to the door body 10 while pressing the flexible sheet 60 directly or indirectly through another sheet material against the inner panel 12. When removing the unit 8 from the door body 10, the flexible sheet 60 is detached from the door body 10 together with the door trim 40 by removing the door trim 40 from the door body 10.

Description

Technical Field

[0001] The present disclosure relates to a method for attaching a deadening material to a vehicle door and a deadening structure in a vehicle door.

Background Art

[0002] The vehicle door structure disclosed in Patent Document 1 has a door panel and a waterproof sheet. The door panel is formed by attaching an acoustic speaker to an inner panel having a work port for assembling equipment. The waterproof sheet is provided so as to cover the vehicle interior side plate surface of the inner panel excluding the acoustic speaker and waterproofs the work port. In the waterproof sheet, a high-rigidity portion having higher rigidity than other portions is provided in the sheet portion facing the work port.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Vehicle doors equipped with speakers generally consist of a door body with an inner panel and a door trim that is detachably attached to the door body. In some cases, the speaker is mounted on the door body, and an access opening (work port) is provided in the inner panel. In this type of vehicle door, for example, the speaker is mounted inside the door facing the passenger compartment, and sound is emitted from the front of the speaker toward the passenger compartment, but sound can also be emitted from the rear of the speaker. When sound is emitted from the rear of the speaker in this way, there is a risk that the sound may wrap around from the back of the inner panel (opposite side from the passenger compartment) through the aforementioned opening to the front (passenger compartment side), or cause the inner panel to vibrate. If sound wraps around from the back through the aforementioned opening, there is a concern that, for example, out-of-phase sound may cancel out the sound emitted from the front of the speaker, leading to a decrease in sound quality. Furthermore, even in configurations where the aforementioned opening is not provided, sound emitted from the back may vibrate the inner panel, and a similar effect may lead to a decrease in sound quality.

[0005] Regarding this problem, conventional methods have included directly attaching sound deadening material to the inner panel to cover the openings in the inner panel. However, with this method, once the sound deadening material is attached to the inner panel and use begins, removing the sound deadening material later becomes an extremely complicated task. For example, if sound deadening material is directly attached to cover the openings in the inner panel, then when it is necessary to use the openings later (for example, when performing tasks that require passing hands or parts through the openings), the sound deadening material must be peeled off first, and then reattached to the inner panel after using the openings, which presents problems in terms of workability.

[0006] One of the purposes of this disclosure is to provide a technology that can implement a configuration that can suppress the effect of sound emitted from a speaker mounted on the door body on the back side on the passenger compartment, while minimizing a decrease in workability. [Means for solving the problem]

[0007] One of the disclosures is a method for attaching sound deadening material to a vehicle door. The present invention relates to a vehicle door comprising a door body having an inner panel and a door trim detachably attached to the door body, and a speaker mounted on the door body, and provides a method for installing sound deadening material inside the vehicle door, By using at least a flexible sheet as the sound deadening material and fixing the flexible sheet to the door trim, a unit in which the flexible sheet is fixed to the door trim is configured to be detachable from the door body. When attaching the unit to the door body, the door trim is attached to the door body while pressing the flexible sheet directly or indirectly against the inner panel via another sheet material. When removing the unit from the door body, the flexible sheet is detached from the door body together with the door trim by removing the door trim from the door body.

[0008] One of the disclosures is a sound deadening structure for a vehicle door, A sound deadening structure for a vehicle door, comprising a door body with an inner panel and a door trim detachably attached to the door body, and a speaker mounted on the door body, A flexible sheet is provided which is flexible and fixed to the door trim, When the flexible sheet is fixed to the door trim, the unit formed by integrating the flexible sheet and the door trim becomes detachable from the door body. When the unit is attached to the door body, the flexible sheet is pressed directly against the inner panel or indirectly via another sheet material. When the unit is removed from the door body, the flexible sheet detaches from the door body together with the door trim. [Effects of the Invention]

[0009] According to the technology disclosed herein, a configuration can be realized that suppresses the effect of sound emitted from a speaker mounted on the door body on the rear side, while minimizing a decrease in workability. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a schematic front view illustrating a vehicle door having a sound-deadening structure according to the first embodiment. [Figure 2] Figure 2 is an explanatory diagram showing the structure of the door body, viewed from the front, after the door trim has been removed from the vehicle door shown in Figure 1. [Figure 3] Figure 3 is an explanatory diagram showing the structure in Figure 2 with the waterproof sheet and adhesive omitted. [Figure 4] Figure 4 is a schematic rear view illustrating a unit in which the door trim and flexible sheet are integrated in the vehicle door shown in Figure 1. [Figure 5] Figure 5 is an explanatory diagram showing how the flexible member is inserted into the slit of the flexible sheet in the unit shown in Figure 4. [Figure 6] Figure 6 is a rear view illustrating the structure of the door trim side after the flexible sheet has been removed from the unit shown in Figure 4. [Figure 7] Figure 7 is an enlarged view showing a portion of the door body shown in Figure 2. [Figure 8] Figure 8 is an explanatory diagram showing the structure of Figure 7 with the annular member removed. [Figure 9] Figure 9 is an explanatory diagram conceptually illustrating the cross-sectional structure near the opening of the inner panel and waterproof sheet, and shows the state when the unit has been removed from the door body. [Figure 10] Figure 10 is a conceptual diagram illustrating the cross-sectional structure near the opening of the inner panel and waterproof sheet, showing the state when the unit is attached to the door body. [Figure 11]FIG. 11 is an explanatory diagram conceptually explaining a cross-sectional structure of a door trim inner wall portion, a speaker, and an annular member, and shows a state when the unit is removed from the door body. [Figure 12] FIG. 12 is an explanatory diagram conceptually explaining a cross-sectional structure of a door trim inner wall portion, a speaker, and an annular member, and shows a state when the unit is attached to the door body. [Figure 13] FIG. 13 is an explanatory diagram conceptually explaining a cross-sectional structure near an opening of an inner panel with respect to a deadening structure of another embodiment, and shows a state when the unit is removed from the door body. [Figure 14] FIG. 14 is an explanatory diagram conceptually explaining a cross-sectional structure near an opening of an inner panel with respect to a deadening structure of another embodiment, and shows a state when the unit is attached to the door body.

Mode for Carrying Out the Invention

[0011] Each of the following [1] to

[16] is an example of a technology such as an object or a method included in the present disclosure. [1] A mounting method for mounting a deadening material inside a vehicle door including a door body having an inner panel and a door trim detachably attached to the door body, and a speaker attached to the door body, the method comprising: At least using a flexible sheet having flexibility as the deadening material, and fixing the flexible sheet to the door trim, thereby configuring a unit in which the flexible sheet is fixed to the door trim to be detachable from the door body. When mounting the unit to the door body, the door trim is attached to the door body while pressing the flexible sheet directly against the inner panel or indirectly through another sheet material. When removing the unit from the door body, the door trim is removed from the door body, thereby detaching the flexible sheet from the door body together with the door trim. Method for attaching a deadening material to a vehicle door

[0012] In the attachment method of [1] above, since the unit in which the flexible sheet is fixed to the door trim is configured to be detachable from the door body, the flexible sheet can be attached while being pressed directly against the inner panel or indirectly through another sheet material by a relatively simple operation of attaching the unit to the door body. When the unit is attached in this way, the flexible sheet is firmly pressed against the inner panel, so that it is possible to effectively suppress the vibration of the inner panel caused by the sound from the back side, and the operation for creating such a suppression structure can be simplified. Also, when it becomes necessary to separate the flexible sheet from the inner panel for some reason after the implementation of the suppression structure, the unit may be removed from the door body. When the unit is removed in this way, the flexible sheet is integrally removed together with the door trim, so that the flexible sheet can be easily separated. When it is desired to again form the above suppression structure after the flexible sheet has been removed in this way, the unit may be attached to the door body again, and the above suppression structure can be created by a simple operation.

[0013] (2) One or more openings are provided in the inner panel. When attaching the unit to the door body, the door trim is attached to the door body while pressing the flexible sheet directly against the inner panel or indirectly through another sheet material so as to press against the peripheral portion of the opening while covering the opening area of the opening. Method for attaching a deadening material to a vehicle door according to (1).

[0014] The vehicle doors targeted by the mounting method described in [2] above have an opening in the inner panel, so there is a risk that sound emitted from the speaker mounted on the door body on the back side may affect the passenger compartment through the opening. In contrast, the mounting method described in [2] above involves a relatively simple operation of attaching a unit, which consists of a flexible sheet fixed to the door trim, to the door body. This allows the flexible sheet to be attached so as to cover the opening area formed in the inner panel and be pressed against the periphery of the opening. Once the unit is attached in this way, the flexible sheet is firmly pressed against the periphery of the opening, and the opening area of ​​the opening is sealed by the flexible sheet or by the flexible sheet and other sheet material. Therefore, it becomes possible to suppress sound emitted from the speaker mounted on the door body on the back side affecting the passenger compartment through the opening, and the work required to create such a suppression structure can be simplified. Furthermore, if it becomes necessary to separate the flexible sheet from the opening for any reason after the suppression structure has been implemented, the unit can be removed from the door body. When the unit is removed in this way, the flexible sheet is removed together with the door trim, allowing the flexible sheet to be easily separated from the opening. If the restraint structure is to be restored after the flexible sheet has been removed, the unit can be reattached to the door body, and the restraint structure can be created with a simple operation.

[0015] [3] The speaker has an annular end, The inner wall portion of the door trim is provided with a communication portion that connects the inner space of the door trim with the outer space. The aforementioned vehicle door is configured such that the door trim is positioned on one side of the speaker, and the sound-emitting portion of the speaker covers the communication portion, and the door trim is attached to the door body. As the sound deadening material, in addition to the flexible sheet, a flexible annular member is used. With the door trim detached from the door body, the annular member is attached to the annular end so as to follow the annular end. When attaching the unit to the door body, the annular member is sandwiched between the inner wall of the door trim and one annular end, and the annular member is compressed while the unit is attached to the door body such that the sound-emitting portion covers the communication portion. A method for installing sound deadening material in a vehicle door as described in [1] or [2].

[0016] In the mounting method described in [3] above, the unit is attached to the door body so that the speaker's sound-emitting part covers the communication part. After installation, the sound emitted from the speaker can easily pass through the communication part and reach the interior of the vehicle. However, simply covering the communication part with the sound-emitting part is insufficient, as sound emitted from the speaker can leak through the gap between the annular end of the speaker and the inner wall of the door trim. This can reduce the sound quality or volume of the sound reaching the interior of the vehicle. In contrast, the mounting method described in [3] above employs a method of mounting the unit to the door body by inserting an annular member between the inner wall of the door trim and the annular end of the speaker, while compressing the annular member. Due to these features, the gap between the annular end of the speaker and the inner wall of the door trim is more reliably sealed, suppressing the reduction in sound quality and volume caused by sound leaking from the speaker through the gap.

[0017] [4] The vehicle door is configured such that one end of a flexible component having at least one of an electric wire portion or a wire portion is connected to the door body side. A slit is provided at a predetermined position on the flexible sheet, extending from one side to the other side of the flexible sheet. When attaching the unit to the door body, the flexible component is positioned to straddle one side and the other side of the flexible sheet so as to pass through the slit, and the other end of the flexible component is connected to the door trim, and the unit is then attached to the door body. A method for installing sound deadening material on a vehicle door as described in any one of [1] to [3].

[0018] Even if the mounting method described in [4] above is configured such that one end of the flexible component is connected to the door body and the other end is connected to the door trim, the flexible sheet can be attached and detached by the relatively simple operation of attaching and detaching the unit to the door body.

[0019] [5] A waterproof sheet is attached to the inner panel in a manner that covers the opening. When attaching the unit to the door body, the waterproof sheet is sandwiched between the peripheral portion of the opening and the flexible sheet, and the unit is attached to the door body while pressing the flexible sheet against the waterproof sheet at a position that closes the opening area. A method for installing sound deadening material on a vehicle door as described in any one of [2] to [4].

[0020] The mounting method described in [5] above can prevent water from entering the door trim side through the opening from the back of the inner panel using a waterproof sheet, while also preventing sound emitted from the back of the speaker from affecting the passenger compartment through the opening. Furthermore, since the flexible sheet can be positioned to press against the waterproof sheet at a location that covers the opening area of ​​the opening, it is possible to reliably prevent sound emitted from the back from propagating to the waterproof sheet covering the opening area and causing the waterproof sheet to vibrate.

[0021] [6] When attaching the unit to the door body, the unit is attached to the door body such that the flexible sheet is in contact with the inner edge of the opening and a portion of the flexible sheet is inserted into the opening. A method for installing sound deadening material on a vehicle door as described in any one of [2] to [4].

[0022] The mounting method described in [6] above allows the flexible sheet to be more securely pressed against the opening, making it easier to more reliably close the opening. As a result, it is possible to more reliably suppress the transmission of sound that has gotten around to the back of the inner panel to the passenger compartment through the opening.

[0023] [7] A sound deadening structure for a vehicle door, comprising a door body having an inner panel and a door trim detachably attached to the door body, and a speaker mounted on the door body, A flexible sheet is provided which is flexible and fixed to the door trim, When the flexible sheet is fixed to the door trim, the unit formed by integrating the flexible sheet and the door trim becomes detachable from the door body. When the unit is attached to the door body, the flexible sheet is pressed directly against the inner panel or indirectly via another sheet material. When the unit is removed from the door body, the flexible sheet detaches from the door body together with the door trim. Sound deadening structure for vehicle doors.

[0024] The sound deadening structure for the vehicle door described in [7] above can produce the same effect as the mounting method described in [1] above.

[0025] [8] The inner panel is provided with one or more openings, When the unit is attached to the door body, the flexible sheet is pressed directly or indirectly via another sheet material against the inner panel so as to cover the opening area of ​​the opening and press against the periphery of the opening. [7] The sound deadening structure for vehicle doors.

[0026] The sound deadening structure for the vehicle door described in [8] above can produce the same effect as the mounting method described in [2] above.

[0027] [9] The speaker has an annular end, The inner wall portion of the door trim is provided with a communication portion that connects the inner space of the door trim with the outer space. The aforementioned vehicle door is configured such that the door trim is positioned on one side of the speaker, and the sound-emitting portion of the speaker covers the communication portion, and the door trim is attached to the door body. Furthermore, it includes a flexible annular member, The annular member is attached to one end of the annular part so as to follow along the annular part. When the unit is attached to the door body, the annular member is compressed between the inner wall of the door trim and one end of the annular member, and the opening region of the annular member is located between the sound-emitting portion and the communication portion. The sound deadening structure for vehicle doors as described in [7] or [8].

[0028] The sound deadening structure for vehicle doors described in [9] above can produce the same effect as the mounting method described in [3] above.

[0029]

[10] The vehicle door is configured such that one end of a flexible component having at least one of an electric wire portion or a wire portion is connected to the door body side. A slit is provided at a predetermined position on the flexible sheet, extending from one side to the other side of the flexible sheet. The flexible component is positioned to straddle one side and the other side of the flexible sheet so as to pass through the slit, and the unit is attached to the door body with the other end of the flexible component connected to the door trim. A sound deadening structure for a vehicle door as described in any one of [7] to [9].

[0030] The sound deadening structure for the vehicle door described in

[10] above can produce the same effect as the mounting method described in [4] above.

[0031]

[11] A waterproof sheet is attached to the inner panel in a manner that covers the opening. The waterproof sheet is sandwiched between the peripheral portion of the opening and the flexible sheet, and the unit is attached to the door body while the flexible sheet is pressed against the waterproof sheet in a position that closes the opening area. A sound deadening structure for a vehicle door as described in any one of [7] to

[10] .

[0032] The sound deadening structure for the vehicle door described in

[11] above can produce the same effect as the mounting method described in [5] above.

[0033]

[12] The unit is attached to the door body such that the flexible sheet is in contact with the inner edge of the opening and a portion of the flexible sheet enters the opening. A sound deadening structure for a vehicle door as described in any one of [7] to

[11] .

[0034] The sound deadening structure for the vehicle door described in

[12] above can produce the same effect as the mounting method described in [6] above.

[0035]

[13] A method for installing sound deadening material in a vehicle door as described in any one of [1] to [6], or a sound deadening structure for a vehicle door as described in any one of [7] to

[12] , In the aforementioned inner panel, a recess is provided on the side opposite to the passenger compartment side, The opening is provided such that the inner wall portion within the recess is open, The unit is attached to the door body in such a configuration that a portion of the flexible sheet is pushed into the recess while simultaneously closing the opening within the recess.

[0036] The technology described in

[13] above can more reliably seal the opening in the recess in a vehicle door in which the opening is provided within the recess, and such a configuration can be realized in a manner that minimizes a decrease in workability.

[0037]

[14] A method for installing sound deadening material in a vehicle door as described in any one of [1] to [6], or a sound deadening structure for a vehicle door as described in any one of [7] to

[12] , or the technology of

[13] The inner panel is provided with two or more of the aforementioned openings. The unit is attached to the door body in such a configuration that the flexible sheet spans two or more of the openings, and a portion of the flexible sheet presses against the periphery of each of the two or more openings spanned by the flexible sheet, thereby closing each of the openings.

[0038] The technology described in

[14] above allows for easier attachment and detachment of a flexible sheet to the door body in a vehicle door with two or more openings, and enables more reliable sealing of the two or more openings.

[0039]

[15] In the method of installing sound deadening material in a vehicle door as described in any one of [1] to [6], or in the sound deadening structure in a vehicle door as described in any one of [7] to

[12] , or in the technology as described in any one of

[13] or

[14] , The inner surface of the door trim or a component held on that inner surface and the flexible sheet are bonded together by double-sided tape.

[0040] The technology described in

[15] above allows the flexible sheet to be fixed to the door trim with a simple configuration.

[0041]

[16] In the method of installing sound deadening material in a vehicle door as described in any one of [1] to [7], or in the sound deadening structure in a vehicle door as described in any one of [7] to

[12] , or in the technology as described in any one of

[13] to

[15] , In the flexible sheet, a waterproof layer is provided on at least the surface portion on the door body side, with a waterproof treatment applied. The unit is attached to the door body such that the waterproof layer covers the opening area of ​​the opening and is pressed against the periphery of the opening.

[0042] The technology described in

[16] above enables a structure that can seal the opening while suppressing water flow from the front side (door body side) to the back side (door trim side) of the flexible sheet, with a configuration that allows for easy attachment and detachment of the flexible sheet.

[0043] <First Embodiment> The following description relates to the first embodiment. 1. Structure of vehicle doors Vehicle door 1 The vehicle door 1 shown in Figure 1 comprises a door body 10 and a door trim 40, with the door body 10 and door trim 40 being integrally formed. The vehicle door 1 is intended for a variety of vehicles, including, for example, "regular passenger cars," "compact cars," "light vehicles," "large special vehicles," and "small special vehicles," as well as other types of vehicles.

[0044] In this specification, in a vehicle equipped with a vehicle door 1, the "direction of the vehicle's width" when the vehicle door 1 is closed is defined as the longitudinal direction of the vehicle door 1. In that longitudinal direction, the side facing the passenger compartment when the vehicle door 1 is closed is defined as the front side of the vehicle door 1, and the opposite side is defined as the rear side of the vehicle door 1. Figure 1 is a view of the vehicle door 1 from the front.

[0045] Figure 2 is a view of the door body 10 from the inside (front side). Figure 3 is a view of Figure 2 with the waterproof sheet 24 and the adhesive 25 for bonding the waterproof sheet 24 to the door body 10 omitted. As shown in Figure 3, the door body 10 comprises an inner panel 12 and an outer panel 11 that covers the inner panel 12 from the outside (rear side).

[0046] The outer panel 11 is a plate-shaped part that is exposed on the outside of the vehicle and is mostly made of metal sheet material. The outer panel 11 constitutes a part of the outer surface of the vehicle, which forms the outer shell of the vehicle.

[0047] The inner panel 12 is a plate-like portion that covers the inner surface (the side facing the passenger compartment) of the outer panel 11 from the inside (the side facing the passenger compartment), and is mostly made of metal sheet material. The inner panel 12 is attached by overlapping it with the inside (front side) of the outer panel 11, and the peripheral edge of the inner panel 12 is fixed, joined, or integrated with the outer panel 11. A predetermined portion near the center of the inner panel 12 is positioned apart from the outer panel 11, and a space (the space inside the door body) is formed between the inner panel 12 and the outer panel 11.

[0048] A waterproof sheet 24 is attached to the inner panel 12 as shown in Figure 2. The waterproof sheet 24 is attached to the inner panel 12 in a manner that covers the opening 16 provided in the inner panel 12. The waterproof sheet 24 is attached so as to cover the portion of the inner panel 12 where the opening 16 is provided from the inside (front side). The adhesive shown in Figure 2 is interposed between the back surface (rear surface) of the waterproof sheet 24 and the front surface (front surface) of the inner panel 12, joining the back surface (rear surface) of the waterproof sheet 24 and the front surface (front surface) of the inner panel 12. The adhesive 25 is arranged to surround the portion of the inner panel 12 where the opening 16 is provided in a ring shape.

[0049] As shown in Figure 2, multiple openings 16 are provided in the inner panel 12 in the area inside the annularly arranged adhesive 25. The inner panel 12 and the waterproof sheet 24 are joined in an annular manner around the inner area where these openings 16 are provided. Due to this configuration, the sealing performance of the waterproof sheet 24 near the adhesive 25 is enhanced, and the waterproof sheet 24 prevents gases and liquids that enter the inner (front) area from the space outside (rear) of the inner panel 12 through the openings 16 from moving forward beyond the waterproof sheet 24.

[0050] As shown in Figures 2 and 3, the vehicle door 1 is provided with flexible components 4, such as a wire section 5 and a cable section 6. Both the wire section 5 and the cable section 6 are configured to bend and deform, allowing them to bend or extend in a straight line. The wire section 5 and the cable section 6 are configured to be elongated and slender, for example, in the form of a string, strip, or ribbon.

[0051] One end of the wire section 5 is connected to the door body 10, and the other end is connected to the door trim 40. For example, one end of the wire section 5 is attached to an electrical component provided on the door body 10 and electrically connected to the electrical component so that power and signals can be transmitted between the wire section 5 and the electrical component. Examples of electrical components to which one end of the wire section 5 is connected include an actuator for driving a window member 3 (window glass, etc.) provided on the door body 10, and wiring electrically connected to this actuator. The other end of the wire section 5 is attached to an electrical component provided on the door trim 40 and electrically connected to the electrical component so that power and signals can be transmitted between the electrical component and the electrical component. Examples of electrical components to which the other end of the wire section 5 is connected include an operating device provided on the door trim 40 (for example, an operating device for instructing the opening and closing of a window), and wiring electrically connected to this operating device.

[0052] The wire section 6 is a component in which one end is connected to the door body 10 and the other end is connected to the door trim 40. For example, the wire section 6 is a door wire harness in which one end is connected to a door lock mechanism provided on the door body 10 and the other end is directly or indirectly connected via another component to an inner door handle 7 (Figure 1) provided in the passenger compartment on the door trim 40. The wire provided on the wire section 6 is displaced in response to the operation of the inner door handle 7, and acts to displace a part of the door lock mechanism and release the door lock mechanism (releasing the mechanism so that the door can be opened when the vehicle door 1 is closed).

[0053] As shown in Figure 2, the vehicle door 1 has a speaker 30 on the door body 10 side, and the speaker 30 has the configuration shown in Figures 7 and 8, with the sound-emitting part 32 facing inward (towards the front). In the configurations of Figures 7 and 8, the speaker 30 is a cone-type speaker in which a cone-shaped diaphragm is provided in the sound-emitting part 32.

[0054] A door trim 40 is positioned on one side of the speaker 30 (the front side, which is the side facing the passenger compartment) (see also Figure 12). As shown in Figures 6 and 12, the inner wall portion 44 of the door trim 40 is provided with a communication portion 46 that connects the inner space of the door trim 40 with the outer space. The inner wall portion 44 is made up of a plate-shaped (for example, curved plate-shaped) member, and the communication portion 46 is made up of a through hole that penetrates between the inner surface (front) and outer surface (rear) of the inner wall portion 44. The inner wall portion 44 is provided with a large number of such communication portions 46 (see also Figure 11). The vehicle door 1 is configured such that the sound-emitting portion 32 of the speaker 30 covers a plurality of communication portions 46 and the door trim 40 is attached to the door body 10 (see also Figure 12).

[0055] The door trim 40 shown in Figures 4 and 6 is a component that can be detachably attached to the door body 10. The door trim 40 has the configuration shown in Figure 6, and together with the flexible sheet 60 as shown in Figure 4, it forms a unit 8. As shown in Figure 6, the door trim 40 has a cushioning sheet material 42 attached to the outer side (rear side) of the door trim body 41 which constitutes the inner wall on the passenger compartment side, and various other components (for example, the inner door handle 7 and the operating switch for operating the window member 3) are attached directly or indirectly via other components. The inner wall portion 44 of the door trim 40 is made up of a panel mainly composed of resin material, for example, and is configured to separate the space inside the passenger compartment from the space inside the vehicle door 1 (the space between the door trim 40 and the inner panel 12).

[0056] 2. Overview of the sound deadening structure The sound deadening structure 2 is a sound deadening structure for a vehicle door 1. The sound deadening structure 2 mainly comprises a flexible sheet 60 and an annular member 80. The flexible sheet 60 is flexible and is fixed to the door trim 40 so as to cover the openings 16A and 16B provided in the inner panel 12. The annular member 80 is attached to one end 38 (Figure 8) of the speaker 30.

[0057] In the sound deadening structure 2, the flexible sheet 60 is fixed to the door trim 40, and this configuration allows the unit 8 (Figure 4), which is an integrated unit of the flexible sheet 60 and the door trim 40, to be attached to and detached from the door body 10 (Figure 2). In this configuration, when the unit 8 is attached to the door body 10, the flexible sheet 60 is indirectly pressed against the inner panel 12 via the waterproof sheet 24 (another sheet material) so as to cover the opening area of ​​the opening 16A and be pressed against the peripheral area 18 of the opening 16A, as shown in Figure 10. When the unit 8 is removed from the door body 10, the flexible sheet 60 detaches from the door body 10 together with the door trim 40, and the flexible sheet 60 separates from the vicinity of the opening 16A, as shown in Figure 9.

[0058] 3. How to install sound deadening material To implement the method of attaching the sound deadening material used in the above sound deadening structure, first, a unit 8 is prepared. Specifically, at least a flexible sheet 60 is used as the sound deadening material. The flexible sheet 60 is preferably made of a material that is flexible and resilient, and may be a resin material such as urethane, or it may be rubber or elastomer. For example, the flexible sheet 60 is preferably made of a material and structure that is flexible enough to deform to conform to the surface shape of the object it is in contact with (door body 10) when pressed against the door body 10, and preferably can deform into a compressed state so that the thickness of the parts pressed from both sides decreases when sandwiched between the door trim 40 and the inner panel 12 and pressed from both sides. Furthermore, when the unit 8 is removed from the door body 10 and the state of being sandwiched between the door trim 40 and the inner panel 12 (state of being pressed from both sides) is released, it is desirable that the unit 8 deform into an expanded state so that the thickness of the parts that were pressed from both sides increases. Then, by fixing the flexible sheet 60 to the door trim 40 as shown in Figure 4, as shown in Figure 6, a unit 8 is formed in which the flexible sheet 60 is fixed to the door trim 40, and this unit 8 is made detachable from the door body 10. In this embodiment, the unit 8 can be attached to the door body 10 by inserting the insertion part 43 (projection) provided on the door trim 40 into the insertion part 13 (hole) provided on the door body 10, and the unit 8 can be removed from the door body 10 by removing the insertion part 43 from the insertion part.

[0059] Furthermore, in this mounting method, a flexible annular member 80 is used as the sound deadening material. As shown in Figures 7 and 8, the annular member 80 is attached to the front surface of the annular end 38 (front end) of the speaker 30 so as to cover the annular end 38 from the front. Specifically, with the door trim 40 detached from the door body 10, the annular member 80 can be integrated with the door body 10 by attaching the annular member 80 to the annular end 38 so as to follow the annular end 38.

[0060] After adopting this configuration, the sound deadening material can be attached to and detached by attaching and detaching unit 8 to the door body 10. Specifically, by attaching unit 8 to the door body 10, as shown in Figure 10, the door trim 40 is attached to the door body 10 while indirectly pressing the flexible sheet 60 against the inner panel 12 via the waterproof sheet 24 (other sheet material) so as to cover the opening area of ​​the opening 16 and press it against the peripheral area 18 of the opening 16. Specifically, the waterproof sheet 24 is sandwiched between the peripheral area 18 of the opening 16 and the flexible sheet 60, and the door trim 40 is attached to the door body 10 while pressing the flexible sheet 60 against the waterproof sheet 24 at a position that closes the opening area.

[0061] When installed in this manner, as shown in Figure 12, the annular member 80 is sandwiched between the inner wall portion 44 of the door trim 40 and the annular end portion 38, resulting in a compressed state, and the opening region of the annular member 80 is located between the sound-emitting portion 32 and the communication portion 46. Specifically, the annular member 80 is sandwiched between the inner wall portion 44 of the door trim 40 and the annular end portion 38, and the annular member 80 is compressed, so that the unit 8 is attached to the door body 10 such that the communication portion 46 is covered by the sound-emitting portion 32.

[0062] In the technology according to this embodiment, as shown in Figure 4, a slit 68 is provided at a predetermined position on the flexible sheet 60, extending from one side (front) to the other side (rear) of the flexible sheet 60. When attaching the unit 8 to the door body 10 as described above, before attachment, the flexible component 4 is inserted through the slit 68 as shown in Figure 5, straddling one side and the other side of the flexible sheet 60, and the other end of the flexible component 4 is connected to the door trim 40. After making this connection, the unit 8 is attached to the door body 10 as described above.

[0063] On the other hand, when removing unit 8 from the door body 10, the door trim 40 can be removed from the door body 10, thereby allowing the flexible sheet 60 to be detached from the door body 10 together with the door trim 40, as shown in Figure 9. When the door trim 40 is separated from the door body 10 in this way, it becomes easier for workers to access the area around the opening 16. Also, when the door trim 40 is separated from the door body 10, the speaker 30 and the annular member 80 are separated from the inner wall portion 44, as shown in Figure 11, which makes it easier for workers to access the area around the speaker 30.

[0064] 4. Examples of effects In the above-described mounting method and sound deadening structure, the unit 8, which consists of a flexible sheet 60 fixed to the door trim 40, is configured to be detachable from the door body 10. Therefore, the flexible sheet 60 can be installed by the relatively simple task of attaching the unit 8 to the door body 10. With this mounting method, when installing the unit 8 during maintenance, as shown in Figure 10, the flexible sheet 60 can be installed by indirectly pressing it against the peripheral area 18 of the opening 16 formed in the inner panel 12, while covering the opening area 16. When the unit 8 is installed in this way, the flexible sheet 60 is firmly pressed against the peripheral area 18 of the opening 16, and the opening area of ​​the opening 16 is sealed by the flexible sheet 60 and the waterproof sheet 24 (other sheet material). Therefore, it is possible to suppress the sound emitted from the back side of the speaker 30 attached to the door body 10 from affecting the passenger compartment through the opening 16, and the work required to create such a suppression structure can be simplified. Furthermore, if for any reason it becomes necessary to separate the flexible sheet 60 from the opening 16 after the implementation of the restraint structure, the unit 8 can be removed from the door body 10. When the unit 8 is removed in this way, the flexible sheet 60 is removed integrally with the door trim 40, so the flexible sheet 60 can be easily separated from the opening 16, as shown in Figure 9. If it is desired to revert to the restraint structure after the flexible sheet 60 has been removed in this way, the unit 8 can be reattached to the door body 10, and the restraint structure can be created with simple work.

[0065] In the above-described mounting method and sound deadening structure, the unit 8 is mounted to the door body 10 such that the sound-emitting part 32 of the speaker 30 covers the communication part 46. After mounting, the sound emitted from the sound-emitting part 32 can easily pass through the communication part 46 and reach the interior of the vehicle. However, simply covering the communication part 46 with the sound-emitting part 32 is insufficient, as sound emitted from the sound-emitting part 32 can leak through the gap between the annular end 38 of the speaker 30 and the inner wall 44 of the door trim 40. This phenomenon raises concerns that it may reduce the sound quality or volume of the sound reaching the interior of the vehicle. In contrast, the above-described mounting method employs a configuration in which, when mounting the unit 8 to the door body 10, an annular member 80 is sandwiched between the inner wall 44 of the door trim 40 and the annular end 38 of the speaker 30, and the annular member 80 is compressed during mounting. Because of these characteristics, the gap between the annular end 38 of the speaker 30 and the inner wall portion 44 of the door trim 40 is more reliably sealed, and the reduction in sound quality and volume caused by sound leaking from the sound-emitting portion 32 through the gap can be suppressed.

[0066] In the above-described mounting method and sound deadening structure, even if one end of the flexible part 4 is connected to the door body 10 and the other end is connected to the door trim 40, the flexible sheet 60 can be attached and detached by the relatively simple operation of attaching and detaching the unit 8 to the door body 10.

[0067] The above-described mounting method can prevent water from entering the door trim 40 side from the back of the inner panel 12 through the opening 16 using the waterproof sheet 24, while also preventing sound emitted from the speaker 30 to the back of the inner panel 12 from affecting the passenger compartment through the opening 16. Furthermore, since the flexible sheet 60 can be positioned to press against the waterproof sheet 24 at a location that covers the opening area of ​​the opening 16, it is possible to reliably prevent sound emitted from the back of the inner panel 12 from propagating to the waterproof sheet 24 at a location that covers the opening area and causing the waterproof sheet 24 to vibrate.

[0068] In the above-described mounting method and sound deadening structure, as shown in Figure 10, when attaching the unit 8 to the door body 10, the unit 8 can be attached to the door body 10 such that the flexible sheet 60 is in contact with the peripheral part 18 of the opening 16A (for example, near the inner edge) and at least a part of the flexible sheet 60 is inserted into the opening 16A. With this method, the flexible sheet 60 can be more securely pressed against the opening 16, making it easier to securely close the opening 16, and thus it is possible to more reliably suppress the transmission of sound that has wrapped around to the back of the inner panel 12 to the passenger compartment through the opening 16.

[0069] In the above-described mounting method and sound deadening structure, as shown in Figure 10, the inner panel 12 is provided with a recess 14 that is recessed on the side opposite to the passenger compartment, and an opening 16A is provided in which the inner wall portion of the recess 14 is open, and the unit 8 is attached to the door body 10 in which a part of the flexible sheet 60 is pushed into the recess 14 and closes the opening 16A in the recess 14. With this method, the opening 16A in the recess 14 can be closed more reliably in a vehicle door 1, and such a configuration can be realized in a way that does not reduce the decrease in workability.

[0070] In the above-described mounting method and sound deadening structure, the inner panel is provided with two or more openings (for example, openings 16A, 16B), and one flexible sheet 60 spans both of these openings. A portion of the flexible sheet 60 is pressed against the periphery of each of the two or more openings that the flexible sheet 60 spans, thereby sealing each opening. The unit 8 is attached to the door body in this configuration. In a vehicle door 1 provided with two or more openings, the flexible sheet 60 can be easily attached to and detached from the door body 10, and the two or more openings can be sealed more reliably.

[0071] In the above-described mounting method and sound deadening structure, the flexible sheet 60 is adhered to the inner surface of the door trim 40 or a component held on that inner surface by double-sided tape. This method allows the flexible sheet 60 to be fixed to the door trim 40 with a simple configuration.

[0072] In the above-described mounting method and sound deadening structure, the flexible sheet 60 is provided with a waterproof layer, which is waterproofed at least on the surface facing the door body 10. The unit 8 is attached to the door body 10 such that this waterproof layer covers the opening area of ​​the opening 16 and is pressed against the peripheral area 18 of the opening 16. This method makes it possible to seal the opening 16 while suppressing water flow from the surface side (door body 10 side) to the back side (door trim 40 side) of the flexible sheet 60, with a configuration that allows for easy attachment and detachment of the flexible sheet 60.

[0073] <Other Embodiments> The present invention is not limited to the embodiments described above and in the drawings. For example, any combination of the features of the embodiments described above or below is possible as long as it does not contradict each other. Furthermore, any feature of the embodiments described above or below may be omitted unless explicitly stated as essential. In addition, the embodiments described above may be modified as follows.

[0074] The sound deadening structure and the mounting method employed in this sound deadening structure are intended for a vehicle door 1 having an opening 16 in the inner panel 12, and the structure and method involve attaching a unit 8 such that the flexible sheet 60 covers the opening 16 in the inner panel 12, but are not limited to this configuration. For example, the sound deadening structure or mounting method may also be intended for a vehicle door having a door body without an opening in the inner panel (for example, a door body modified from the door body 10 with the configuration shown in Figure 3 to have a structure without an opening 16 (a closed structure)). For example, even when targeting a vehicle door modified from the representative example vehicle door 1 to have a structure without an opening 16 (a closed structure), the same flexible sheet 60 as in the first embodiment can be used as the sound deadening material, and by fixing this flexible sheet 60 to the door trim 40 in the same manner as in Figure 4, the unit 8, in which the flexible sheet 60 is fixed to the door trim 40, can be configured to be detachably attached to the door body (the door body modified from the door body 10 of Figure 3 to have a structure without an opening 16 (a closed structure)). In this case as well, when attaching the unit 8 to the door body, the door trim 40 can be attached to the door body while pressing the flexible sheet 60 directly against the inner panel 12 or indirectly via another sheet material. In this configuration as well, when the unit 8 is attached to the door body, one side of the flexible sheet 60 is firmly pressed against the inner panel 12, so even if sound is emitted from the speaker 30 to the back of the inner panel 12, this sound can suppress vibration of the inner panel 12. On the other hand, when removing the unit 8 from the door body, the flexible sheet 60 can be detached from the door body together with the door trim 40 by removing the door trim 40 from the door body. It should be noted that even in this configuration, the annular member 80 can be used in the same configuration as in the first embodiment.

[0075] The above-described embodiment uses a vehicle door 1 with the configuration shown in Figure 1 as a representative example, but any known vehicle door can be applied to the above-described mounting method and sound deadening structure as long as it comprises a door trim, an inner panel, an outer panel overlapping the inner panel, and a speaker, and the door trim is detachable from the door body.

[0076] The sound deadening structure shown in Figures 13 and 14, and the mounting method employed in this structure, differ from the sound deadening structure 2 of the first embodiment and the mounting method employed in this sound deadening structure 2, except that the waterproof sheet 24 and adhesive 25 are not provided. Other than the omission of the waterproof sheet 24 and adhesive 25, it is the same as the sound deadening structure 2 of the first embodiment and the mounting method employed in this sound deadening structure 2. Therefore, the examples in Figures 13 and 14 are assumed to be configurations in which the waterproof sheet 24 and adhesive 25 are omitted compared to the examples in Figures 1 to 12. In the examples in Figures 13 and 14, the configuration on the door trim 40 side is the same as the configuration on the door trim 40 side in the first embodiment, and the same unit 8 (Figure 2) as in the first embodiment is used. In the sound deadening structure and mounting method employed in the examples in Figures 13 and 14, the flexible sheet 60 is fixed to the door trim 40, and a unit 8 is formed in which the flexible sheet 60 and the door trim 40 are integrated. The unit 8 is detachable from the door body 10. In this configuration, when the unit 8 is attached to the door body 10, the flexible sheet 60 is directly pressed against the inner panel 12 so as to cover the opening area of ​​the opening 16 and be pressed against the peripheral area 18 of the opening 16. Specifically, when attaching the unit 8 (Figure 2) to the door body 10, the unit 8 is attached to the door body 10 so as to bring the flexible sheet 60 into contact with the peripheral area 18 of the opening 16, as shown in Figure 14, and allow a portion of the flexible sheet 60 to enter the opening 16A. This method allows the flexible sheet 60 to be more securely attached to the opening 16A, making it easier to securely close the opening 16A, and thus more reliably suppressing the transmission of sound that has gotten around to the back of the inner panel 12 to the passenger compartment through the opening 16A. When adopting such a configuration, it is even more desirable that the surface of the flexible sheet 60 be the waterproof layer described above. This suppresses or prevents water from entering the door trim side through the opening 16A.

[0077] In both the configuration shown in Figure 9 and the configuration shown in Figure 13, as long as the flexible sheet 60 is pressed against the peripheral portion 18 of the opening 16A, it is not necessary to insert the flexible sheet 60 into the opening 16A.

[0078] In both the configuration shown in Figure 9 and the configuration shown in Figure 13, the position where the flexible sheet 60 is pressed against the peripheral area around the opening 16A may be the peripheral edge near the opening region of the opening 16A, or it may be the peripheral area slightly away from the opening region of the opening 16A. In the configurations of Figure 9 and Figure 13, when the door trim 40 is attached to the door body 10, the flexible sheet 60 is pressed against the peripheral edge of the opening 16A within the recess 14, but the flexible sheet 60 is pressed against the vicinity of the inner edge of the hole in the recess 14, and part or all of the inside of the recess 14 is not pressed against the flexible sheet 60. In either case, when the door trim 40 is attached to the door body 10, it is desirable that the flexible sheet 60 is pressed against the entire circumference around the recess 14 in the peripheral area of ​​the recess 14.

[0079] It should be noted that the embodiments disclosed herein are illustrative and not restrictive in all respects. The scope of the present invention is not limited to the embodiments disclosed herein, and is intended to include all modifications within the scope set forth in the claims or equivalents thereof. [Explanation of symbols]

[0080] 1... Vehicle door 4...Flexible parts 5... Wire section 6…Wire section 8 units 10... Door body 12…Inner panel 14…recess 16…Opening 18… Peripheral area 24…Waterproof sheet (other sheet material) 30...Speaker 32…Sound emitting part 38...One end 40... Door trim 44...Interior wall section 46…Communication part 60... Flexible sheet (sound deadening material) 68... Slit 80... Ring-shaped component (sound deadening material)

Claims

1. The present invention relates to a vehicle door comprising a door body having an inner panel and a door trim detachably attached to the door body, and a speaker mounted on the door body, and provides a method for installing sound deadening material inside the vehicle door, By using at least a flexible sheet as the sound deadening material and fixing the flexible sheet to the door trim, a unit in which the flexible sheet is fixed to the door trim is configured to be detachable from the door body. When attaching the unit to the door body, the door trim is attached to the door body while pressing the flexible sheet directly or indirectly against the inner panel via another sheet material. When removing the unit from the door body, the flexible sheet is detached from the door body together with the door trim by removing the door trim from the door body. Method for installing sound deadening material on vehicle doors.

2. The inner panel is provided with one or more openings. When attaching the unit to the door body, the door trim is attached to the door body by pressing the flexible sheet directly or indirectly via another sheet material against the inner panel so as to cover the opening area of ​​the opening and press it against the periphery of the opening. A method for attaching sound deadening material to a vehicle door according to claim 1.

3. The speaker has an annular end, The inner wall portion of the door trim is provided with a communication portion that connects the inner space of the door trim with the outer space. The aforementioned vehicle door is configured such that the door trim is positioned on one side of the speaker, and the sound-emitting portion of the speaker covers the communication portion, and the door trim is attached to the door body. As the sound deadening material, in addition to the flexible sheet, a flexible annular member is used. With the door trim detached from the door body, the annular member is attached to the annular end so as to follow the annular end. When attaching the unit to the door body, the annular member is sandwiched between the inner wall of the door trim and one annular end, and the annular member is compressed while the unit is attached to the door body such that the sound-emitting portion covers the communication portion. A method for attaching sound deadening material to a vehicle door according to claim 1 or claim 2.

4. The aforementioned vehicle door has a configuration in which one end of a flexible component having at least one of an electric wire portion or a wire portion is connected to the door body side. A slit is provided at a predetermined position on the flexible sheet, extending from one side to the other side of the flexible sheet. When attaching the unit to the door body, the flexible component is positioned to straddle one side and the other side of the flexible sheet so as to pass through the slit, and the other end of the flexible component is connected to the door trim, and the unit is then attached to the door body. A method for attaching sound deadening material to a vehicle door according to claim 1 or claim 2.

5. A waterproof sheet is attached to the inner panel in a manner that covers the opening. When attaching the unit to the door body, the waterproof sheet is sandwiched between the peripheral portion of the opening and the flexible sheet, and the unit is attached to the door body while pressing the flexible sheet against the waterproof sheet at a position that closes the opening area. A method for attaching sound deadening material to a vehicle door according to claim 2.

6. When attaching the unit to the door body, the unit is attached to the door body such that the flexible sheet is in contact with the inner edge of the opening and a portion of the flexible sheet is inserted into the opening. A method for attaching sound deadening material to a vehicle door according to claim 2.

7. A sound deadening structure for a vehicle door, comprising a door body with an inner panel and a door trim detachably attached to the door body, and a speaker mounted on the door body, A flexible sheet is provided which is flexible and fixed to the door trim, When the flexible sheet is fixed to the door trim, the unit formed by integrating the flexible sheet and the door trim becomes detachable from the door body. When the unit is attached to the door body, the flexible sheet is pressed directly against the inner panel or indirectly via another sheet material. When the unit is removed from the door body, the flexible sheet detaches from the door body together with the door trim. Sound deadening structure for vehicle doors.

8. The inner panel is provided with one or more openings. When the unit is attached to the door body, the flexible sheet is pressed directly or indirectly via another sheet material against the inner panel so as to cover the opening area of ​​the opening and press against the periphery of the opening. The sound deadening structure for a vehicle door according to claim 7.

9. The speaker has an annular end, The inner wall portion of the door trim is provided with a communication portion that connects the inner space of the door trim with the outer space. The aforementioned vehicle door is configured such that the door trim is positioned on one side of the speaker, and the sound-emitting portion of the speaker covers the communication portion, and the door trim is attached to the door body. Furthermore, it includes a flexible annular member, The annular member is attached to one end of the annular part so as to follow along the annular part. When the unit is attached to the door body, the annular member is compressed between the inner wall of the door trim and one end of the annular member, and the opening region of the annular member is located between the sound-emitting portion and the communication portion. The sound deadening structure for a vehicle door according to claim 7 or claim 8.

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