JP5946091B2 - Sound insulation cover mounting structure - Google Patents

Description

  The present invention relates to a sound insulation cover mounting structure that is mounted in a vehicle compartment of a vehicle such as an automobile.

An automobile is equipped with an engine for obtaining a driving force for driving and an air conditioner for adjusting the temperature inside the vehicle. These engines and air conditioners are generally installed on the vehicle front side close to the vehicle interior. For this reason, the driving sounds of these engines and air conditioners are easy to enter the vehicle compartment, and the following measures are taken to keep the quietness in the vehicle compartment. That is, a sound insulation cover for shielding the drive sound of the engine and the air conditioner is installed at a place separating the installation range of the engine and the air conditioner compressor from the vehicle interior. When the sound insulation cover is installed in this way, it is possible to shield the driving sound of the engine and the air conditioner from entering the vehicle compartment.
On the other hand, if the above-described sound insulation cover is simply installed, the above driving sound cannot be sufficiently blocked. For this reason, the sound absorbing material for absorbing the driving sound is often installed together with the sound insulating cover at the portion for sound insulation. Such a sound absorbing material is made of a material having sound absorbing properties such as felt. On the other hand, when such a sound absorbing material is installed together with a sound insulation cover, there are two members installed at such a place where sound insulation is to be performed. For this reason, not only the expense for installation is required, but also management of the installed members becomes complicated.
In order to solve this problem, a sound insulation cover having a sound absorbing function added thereto is known (for example, see Patent Document 1). Thus, according to the sound insulation cover to which the sound absorption effect is added, the sound insulation function by the sound insulation cover itself and the sound absorption function as the sound absorbing material can be achieved, and the number of members is set to one point. Can do.

JP 2009-298340 A

  However, when a sound absorbing function is added to the sound insulating cover as described above, the material as the sound insulating cover is necessarily a soft material in order to enhance the sound absorbing characteristics. For this reason, when such a sound insulation cover is disposed at a place where sound insulation is to be performed, a clip member (attachment member) for attaching to the panel becomes necessary due to the softness of the sound insulation cover. Then, since the clip member is required, not only the number of members increases, but also the work man-hour for fastening the clip member increases, and the installation work of the sound insulation cover becomes complicated.

  The present invention has been made in view of such circumstances, and the problem to be solved by the present invention is that the sound insulation cover is attached to a vehicle interior of a vehicle such as an automobile. The sound insulation cover can be attached to the installation location in the vehicle compartment without requiring a mounting member for attaching the sound insulation cover while enabling both the sound insulation effect and the sound absorption effect. To do.

In order to solve the above problems, the sound insulation cover mounting structure according to the present invention takes the following means. That is, the sound insulating cover mounting structure according to the first aspect of the present invention is a sound insulating cover mounting structure that is mounted in a vehicle compartment of a vehicle such as an automobile, and the sound insulating cover has a sound insulating effect and a sound absorbing effect. The cover body is provided with an elastically deformable mountain-shaped portion integrally with the cover body, and an engaging female portion is formed on a side wall of the mountain-shaped portion, and the vehicle A fitting opening configured to be inserted while elastically deforming the mountain-shaped portion of the cover body is formed in the mounting portion to be mounted in the room, and the engagement of the mountain-shaped portion with the fitting opening. An engaging male part that engages with the mating female part is provided, and the engaging female part is formed to have a female hole shape defined by an opening peripheral edge that is continuous and closed all around. It is characterized by that.
According to the mounting structure of the sound insulation cover according to the first aspect of the invention, since the sound insulation cover includes the cover body formed of the material that exhibits the sound insulation effect and the sound absorption effect, the sound insulation effect is achieved at one constituent member of the sound insulation cover. In addition, a sound absorbing effect can be achieved. Further, since the engaging female portion is provided on the side wall of the chevron portion of the cover body by being integrally formed with the cover body, the engagement of the engaging female portion of the sound insulating cover and the fitting opening to be attached is engaged. By engaging the male part, the sound insulation cover can be attached to the attachment target. In addition, since the engaging female portion is formed to have an opening shape that is partitioned by a closed opening peripheral edge that is connected to the entire periphery, the engaging male portion has a closed opening peripheral edge. Can be taken with certainty. In addition, since the engaging female portion is integrated with the cover body so as to receive the supporting force from the cover body, the force applied to the engaging female portion is dispersed in the cover body, and the engaging female portion is engaged with the engaging female portion. It is possible to support the fitting of the male portion. In this way, both the sound insulation effect and the sound absorption effect can be achieved at one point of the sound insulation cover, and the sound insulation for the installation location in the vehicle compartment can be achieved without the need for an attachment member for attaching the sound insulation cover. A cover can be attached.

The sound insulation cover mounting structure according to a second aspect of the present invention is the sound insulation cover mounting structure according to the first aspect of the present invention, wherein the portion of the cover body where the support portion is provided is compressed in the thickness direction. and has a high density portion of the state, the one support portion, said being formed by inserting structure inserted in the receiving structure provided on the attachment object inside the vehicle, the other of said support portion, said It is formed in the said engagement female part engaged with the said engagement male part of the attachment object in a vehicle interior, It is characterized by the above-mentioned.
According to the sound insulation cover mounting structure according to the second aspect of the present invention, the portion provided with the support portion of the cover body is a high-density portion where the material is compressed from the thickness direction. Rigidity can be increased more than the density. Thus, when supporting the force at the portion where the support portion is provided, the mounting support can be kept good with the support force due to the increased rigidity. Since one of the support portions is formed with an insertion structure, the support portion can be attached to the attachment target by inserting one of the support portions into a receiving structure provided in the attachment target in the vehicle compartment. Further, since the other support portion is formed by the engaging female portion, the other support portion is attached to the attachment target by engaging the other engagement portion with the engagement male portion of the vehicle interior. be able to. In this way, it is possible to simplify the installation of the sound insulation cover while maintaining a good state of attachment of the sound insulation cover.

The sound insulation cover mounting structure according to a third aspect of the present invention is the sound insulation cover mounting structure according to the first or second aspect of the invention, wherein the cover body includes a rigid portion where the rigidity of the cover body is desired to be increased, and The rigid part of the cover body is divided into a sound-absorbing part for which the sound-absorbing effect is desired to be relatively enhanced with respect to the rigid part, and the rigid part of the cover body is a high-density part in a state where the material is compressed from the thickness direction. It has become, characterized in that. The rigid portion should be set according to a range in which the rigidity is desired to be increased when receiving the supporting force by attaching the cover body. The sound absorbing portion should be set in accordance with a range in which sound is to be actively absorbed by the cover body.
According to the sound insulation cover mounting structure according to the third aspect of the present invention, the cover body is formed by being divided into a rigid portion and a sound absorbing portion, so that the rigidity to be supported by the mounting target can be improved. The sound absorption effect of the cover body can also be enhanced. That is, the sound absorbing effect of the cover body can be efficiently ensured while the sound insulation cover can be favorably attached and supported. In addition, since the rigid portion is a high-density portion in which the material is compressed from the thickness direction , the rigidity of the cover body can be increased without particularly requiring a member for increasing the rigidity. In this way, the sound absorption effect by the sound insulation cover can be secured well while the supporting force when the sound insulation cover is attached can be secured well.
The sound insulation cover mounting structure according to a fourth aspect of the present invention is the sound insulation cover mounting structure according to the third aspect of the present invention, wherein the sound absorbing part has a straight flat surface when viewed in cross-section, and the rigid part Has a curved wavy surface bent with respect to the flat surface when viewed in cross-sectional shape, and the wavy surface is formed in a rib shape by being continuous in the surface direction. .

According to the mounting structure of the sound insulation cover according to the first invention, it is possible to achieve both the sound insulation effect and the sound absorption effect at one point of the sound insulation cover, without requiring an attachment member for attaching the sound insulation cover, A sound insulation cover can be attached to the location in the vehicle compartment.
According to the mounting structure of the sound insulation cover according to the second aspect of the present invention, it is possible to simplify the mounting of the sound insulation cover while maintaining a good state of attachment of the sound insulation cover.
According to the mounting structure of the sound insulation cover according to the third aspect of the invention, the sound absorption effect by the sound insulation cover can be secured well while the supporting force when the sound insulation cover is attached can be secured well.

It is a perspective view of a vehicle interior showing a state where an under cover is attached. It is sectional drawing which expands and shows the cross section of a cover raw material. It is a perspective view of the undercover shape | molded with the cover raw material of FIG. It is sectional drawing of the cover body which shows the IV-IV sectional arrow of FIG. It is sectional drawing of the cover body which shows the VV cross-section arrow of FIG. It is an expanded sectional view which expands and shows the circled part (A) (B) (C) of FIG.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for implementing a sound insulation cover mounting structure according to the present invention will be described with reference to the drawings. The perspective view of FIG. 1 shows a state in which an under cover 40 is installed in the vehicle compartment 11 of the automobile 10. The under cover 40 is a member corresponding to the sound insulation cover according to the present invention, and is a cover member having both a sound insulation function and a sound absorption function described in detail later. The under cover 40 is attached to a lower position of the glove box 13 of the passenger seat 12 in the vehicle compartment 11. The under cover 40 is disposed so as to block the driving sound of the engine and the air conditioner from entering the vehicle interior 11. As described above, the under cover 40 also has a sound absorbing function for absorbing the driving sound of the engine and the air conditioner. For this reason, the under cover 40 is attached to the instrument panel 15 below the glove box 13 in the instrument panel 15 on the front side of the passenger seat 12. The instrument panel 15 (attachment portion 20) at the lower position of the glove box 13 corresponds to an attachment object in the vehicle compartment according to the present invention for attaching the under cover 40. The under cover 40 attached in this manner allows the driving sound of the engine in the engine room arranged on the front side of the passenger seat 12, the driving sound of the air conditioner arranged inside the instrument panel 15, etc. to enter the vehicle interior 11. It will function to block coming.
As described above, the place where the under cover 40 is installed is a place where it is desired to block the driving sound of the engine and the air conditioner from entering the vehicle compartment 11 from the inside of the instrument panel 15. That is, the under cover 40 has a sound insulation function that blocks drive sound from entering the vehicle compartment 11 from the inside of the instrument panel 15 and a sound absorption function that absorbs drive sound. The under cover 40 having the sound insulation function and the sound absorption function is formed of the following material (hereinafter referred to as “cover material 30”).
The cross-sectional view of FIG. 2 shows an enlarged cross-section of the cover material 30 that forms the undercover 40 by molding. A cover material 30 shown in FIG. 2 is a material having both a sound insulation function and a sound absorption function. That is, the cover material 30 is a material formed so as to exhibit a sound insulation effect and a sound absorption effect. For this reason, even if it is in the undercover 40 which shape | molded the cover raw material 30 which comprises these functions, it becomes a molded member which has both these sound insulation functions and a sound absorption function.

  As shown in FIG. 2, the cover material 30 is generally formed by laminating a skin 33 on a fiber structure 31 with a non-breathable film 35 interposed therebetween. The fiber structure 31 is a structure formed mainly of polyester fibers having a sound absorbing function. The fiber structure 31 is formed as a nonwoven fabric in which polyester fibers and heat-fusible fibers are mixed. The skin 33 is provided so as to be laminated on the fiber structure 31 in order to ensure the appearance design (appearance) of the undercover 40. For this reason, this skin 33 is provided only on the side of the under cover 40 facing the vehicle interior 11 that is the externally exposed side, and is provided on the inside of the instrument panel 15 that does not become the externally exposed side. Is not provided. The skin 33 is formed of an appropriate polyester fiber in order to form an appearance design. The non-breathable film 35 interposed between the fiber structure 31 and the skin 33 is interposed so as to exhibit a function of blocking the breathability of the cover material 30 itself. The non-breathable film 35 is formed in a three-layered structure such as polyethylene / polyamide (nylon) / polyethylene. For this reason, the non-breathable film 35 can exhibit non-breathability while ensuring a heat-sealing function to the fiber structure 31 and the skin 33 by such a layered structure. The cover material 30 formed in this way has a sound insulation function secured by the functional characteristics of the non-breathable film 35, and a sound absorbing function secured by the functional characteristics of the fiber structure 31.

The cover material 30 formed as described above is cut and compressed by a press molding machine. That is, the cover material 30 cut and compressed by the press molding machine is formed as the under cover 40 shown in FIG. The perspective view of FIG. 3 shows an under cover 40 formed by the cover material 30 of FIG. Note that the under cover 40 and the like will be described based on “front / rear / up / down / left / right” defined in FIG. 3.
The under cover 40 is attached to the instrument panel 15 at the lower position of the glove box 13. The attachment of the under cover 40 is supported by a front attachment portion 21 and a rear attachment portion 25 provided on the instrument panel 15. The front mounting portion 21 and the rear mounting portion 25 are collectively referred to as a mounting portion 20 provided on the instrument panel 15.
The attachment portion 20 is disposed on the instrument panel 15 in order to attach the under cover 40. Here, the under cover 40 is supported by the instrument panel 15 on both sides in the front-rear direction of the vehicle compartment 11 (the automobile 10). For this reason, the instrument panel 15 is provided with attachment portions 20 (a front attachment portion 21 and a rear attachment portion 25) for supporting the under cover 40 at the front and rear ends of the opened locations. In this way, the under cover 40 attached to the opening at the attachment portion 20 (the front attachment portion 21 and the rear attachment portion 25) has an opening range formed at the lower position of the glove box 13. It will be blocked.

Next, the front side attachment part 21 and the rear side attachment part 25 which comprise this attachment part 20 are demonstrated, referring FIGS. 3-6. The configuration on the cover body 41 side corresponding to the front side attachment portion 21 and the rear side attachment portion 25 will be described in detail later. Moreover, the cross-sectional view of FIG. 4 shows the cover body 41 showing the IV-IV cross-sectional arrow of FIG. The cross-sectional view of FIG. 5 shows the cover body 41 showing the VV cross-sectional arrow of FIG. The cross-sectional view of FIG. 6A shows an enlarged view of the rounded portion (A) of FIG. The cross-sectional view of FIG. 6B is an enlarged view of the rounded portion (B) of FIG. The cross-sectional view of FIG. 6C shows the rounded portion (C) of FIG. 5 in an enlarged manner.
As shown in FIG. 3, the front attachment portion 21 is provided at a front position of an opening range formed at a lower position of the glove box 13. The front attachment portion 21 is configured as a receiving structure corresponding to the insertion structure 51 of the cover body 41. Specifically, the front attachment portion 21 is configured by providing two insertion support holes 23 side by side on a bracket body 22 that is appropriately attached to the instrument panel 15. As shown in FIG. 6A, these two insertion support holes 23 are holes into which two insertion male portions 52 of the insertion structure 51 of the cover body 41, which will be described in detail later, are inserted. For this reason, the two insertion support holes 23 are formed to have a hole shape into which the two insertion male portions 52 arranged along the direction of the cover body 41 plane can be inserted. When the two insertion male parts 52 are inserted into the two insertion support holes 23, the two insertion support holes 23 connect the cover body 41 itself via the two insertion male parts 52. To support.

On the other hand, the rear side attachment part 25 is provided in the rear side position of the opening range formed in the lower side position of the glove box 13. The rear mounting portion 25 includes a protruding body 26 that has a protruding plate shape. The rear attachment portion 25 has an engagement male structure that engages with the engagement portion 55 of the cover body 41 while being engaged. Specifically, the projecting body 26 is provided with two fitting openings 27 that allow the two chevron portions 56 of the engaging portion 55 to be inserted. The two fitting openings 27 are provided in parallel corresponding to the two engaging portions 55 arranged along the direction of the plane of the cover body 41. The fitting opening 27 has a rectangular opening corresponding to the protruding shape of the chevron 56. The fitting opening 27 is provided with a male protrusion 28 that engages with the female hole 58 of the chevron 56. The male ridge 28 is formed in the shape of a ridge protruding inside the fitting opening 27. As will be described later, the male protrusion 28 is fitted into the female opening 58 provided in the mountain 56 in this state by fitting the mountain 56 into the fitting opening 27. It is formed. Here, as shown in FIG. 6C, the fitting direction of the fitting opening 27 and the chevron 56 and the fitting direction of the female hole 58 and the male protrusion 28 intersect each other. Set to direction. In addition, this male protrusion 28 corresponds to the engaging male part according to the present invention, and the female hole part 58 that engages with the male protruding part 28 corresponds to the engaging female part according to the present invention. Moreover, both the above-mentioned insertion structure 51 and the engaging part 55 are equivalent to the support part which concerns on this invention. If it says in detail, the insertion structure 51 of the cover body 41 is corresponded to one support part which concerns on this invention. Further, the engaging portion 55 of the cover body 41 corresponds to the other support portion according to the present invention.
In this manner, the under cover 40 engages the rear end portion (engagement portion 55) with the rear attachment portion 25 after the front end portion (insertion structure 51) is inserted into the front attachment portion 21. Then, the under cover 40 is attached to the instrument panel 15 to be attached and is supported by the instrument panel 15.

Next, the under cover 40 that is attached to the front attachment portion 21 and the rear attachment portion 25 described above will be described. As shown in FIG. 3, the under cover 40 includes a cover body 41 that is formed from the cover material 30 described above.
As shown in FIGS. 3 to 5, the cover body 41 is formed with a range set to a rigid portion 42 and a sound absorbing portion 45. The range in which the rigid portion 42 is set is set over a range in which the rigidity of the cover body 41 is desired to be relatively increased. On the other hand, the sound absorbing portion 45 is set over a range in the cover body 41 where it is desired to relatively improve sound absorbing properties. The rigidity and sound absorption that are desired to be increased are relative performance differences when the rigid portion 42 and the sound absorbing portion 45 are compared. For this reason, the rigid part 42 and the sound absorption part 45 are divided and set according to the range which wants to aim at these desired effects among the cover bodies 41. FIG. In other words, the rigid portion 42 is set in a range where the rigidity performance is desired to be higher than the sound absorbing effect, and the sound absorbing portion 45 is set in the remaining range of the rigid portion 42 where the sound absorbing effect is given priority over the rigid performance. . Even in the rigid portion 42, as with the sound absorbing portion 45, the sound absorbing effect is reduced as compared with the sound absorbing portion 45 because the cover material 30 has both the sound insulating function and the sound absorbing function. The cover body 41 having the sound absorbing effect is formed.

Specifically, as shown in FIGS. 4 and 5, the range of the rigid portion 42 is mainly set to the periphery of the cover body 41 or a range near the periphery. That is, the range of the rigid portion 42 is set so that the under cover 40 attached to the attachment portion 20 has rigidity suitable to withstand the supporting force from the instrument panel 15 when the under cover 40 is supported from the instrument panel 15. ing. For this reason, the rigid portion 42 can withstand the supporting force from the instrument panel 15, and the supporting force that the under cover 40 itself receives from the instrument panel 15 can be advantageously dispersed. On the other hand, the range of the sound absorbing portion 45 is mainly set to the range around the center of the cover body 41. That is, the range in which the sound absorbing portion 45 is set is set around the center where the sound absorbing effect is particularly desired to be exhibited as compared with the rigid portion 42 set as described above. Note that the range of the rigid portion 42 and the sound absorbing portion 45 described above is a main range, and the rigid portion 42 and the sound absorbing portion 45 are mixed as shown in FIGS. 4 and 5.
Here, as shown in FIG. 6B, the sound absorbing portion 45 where the sound absorbing effect is desired to be increased is formed with the thickness of the cover material 30 as it is. On the other hand, the rigid portion 42 is shaped so as to increase the rigidity of the cover body 41 as shown in FIGS. Specifically, the rigidity of the rigid portion 42 is increased by increasing the density of the cover material 30 by compressing and molding the cover material 30 in the thickness direction. In addition, as shown in FIG. 3, the rigidity portion 42 is provided with a rigidity-up rib 43 on the cover material 30 to enhance the rigidity. The rigidity-up rib 43 is formed so as to have a undulating rib shape. In addition, as shown in FIG. 3 etc., as the rib shape which this rigidity up rib 43 wavy, all the shapes which are suitably uneven | corrugated up and down in the cover body 41 are included. In this way, the cover body 41 is formed by dividing the rigid portion 42 and the sound absorbing portion 45 where the sound absorbing effect is desired to be relatively improved with respect to the rigid portion 42.

By the way, the insertion structure 51 attached to the front attachment part 21 and the engaging part 55 attached to the rear attachment part 25 provided in the cover body 41 are configured as follows.
The insertion structure 51 of the cover body 41 includes two insertion male parts 52 as shown in FIG. The two insertion male portions 52 are provided so as to protrude in parallel with the cover body 41 to the front side. This insertion male part 52 is inserted and supported in the insertion support hole 23 of the front attachment part 21 as described above. In addition, this insertion male part 52 is also set as a site | part which wants to raise rigidity among the cover bodies 41 similarly to the above-mentioned rigid site | part 42. FIG. For this reason, the insertion male part 52 is also enhanced in rigidity by increasing the density of the cover material 30 by compressing and molding the cover material 30 in the thickness direction. Further, the insertion male portion 52 is also provided with a rigidity-up rib 43.
On the other hand, the engaging portion 55 of the cover body 41 includes two angle portions 56 as shown in FIG. The two chevron portions 56 are provided in parallel so as to form a chevron on the upper side with respect to the cover body 41. The two chevron portions 56 are formed by rails that extend the chevron in the left-right direction. More specifically, the chevron 56 is formed in a shape that is bent so as to extend the apex in the left-right direction so that the wall surfaces are connected only to the front side and the rear side. For this reason, when the mountain-shaped part 56 is seen along the left-right direction, it is formed so as to form a “<” shape with the upper side convex. Further, notches 57 appropriately cut out are provided at the left and right ends of each of the chevron portions 56. Due to the notches 57, the chevron 56 is easily elastically deformed appropriately in response to appropriate pressing.

The angled portion 56 can be inserted into the fitting opening 27 of the rear mounting portion 25 as described above. The front side of the chevron 56 is formed as a front side wall 561, and the rear side of the chevron 56 is formed as a rear side wall 562. The rear side wall 562 of the mountain-shaped portion 56 is provided with a female hole portion 58 into which the male protrusion 28 protruding inside the fitting opening 27 is fitted. The female hole portion 58 is formed to have a female hole shape that is opened in a rectangular shape corresponding to the male protrusion portion 28 having the above-described protrusion shape. That is, the female hole portion 58 is partitioned so as to form a female hole shape by the opening peripheral edge 59 that is continuous and closed all around. Here, the opening peripheral edge 59 of the female hole part 58 that divides the female hole part 58 is formed by the rear side wall 562 of the mountain-shaped part 56, and the entire circumference is continuous and closed. For this reason, in the female hole portion 58, the opening peripheral edge 59 that defines the upper lower left side right side becomes the peripheral edge supported from the cover body 41. Accordingly, when the male protrusion 28 is fitted in the female hole 58 in the front-rear direction, the opening peripheral edge 59 that defines the female hole 58 is engaged so as to hold the male protrusion 28. Establish a relationship.
More specifically, the chevron 56 is fitted in the vertical direction with respect to the fitting opening 27, and the male protrusion 28 is fitted in the front and rear direction with respect to the female hole 58 in this state. Thus, the movement of the male protrusion 28 is restricted by the opening peripheral edge 59 of the female hole portion 58, and an engagement relationship is established in which these mutual fittings are not removed. In this way, the engaging portion 55 is attached to the rear attachment portion 25. The female hole portion 58 is formed with an opening peripheral edge 59 forming a mountain-shaped portion 56 integrated with the cover body 41 while being supported by the cover body 41. For this reason, the restriction of the movement of the male protrusion 28 by the opening peripheral edge 59 is based on so-called both-end support by supporting the opening peripheral edge 59 connected to the cover body 41.
By the way, when the engaging portion 55 is attached to the rear attachment portion 25, it is supported by the rear attachment portion 25. The engaging portion 55 is also set as a portion of the cover body 41 where the rigidity is desired to be increased in the same manner as the rigid portion 42 described above. For this reason, the rigidity of the engaging portion 55 is also increased by increasing the density of the cover material 30 by compressing and molding the cover material 30 in the thickness direction. The engaging portion 55 is also provided with a rigid up rib 43.

According to the mounting structure of the under cover 40 described above, the following operational effects can be achieved. That is, according to the mounting structure of the under cover 40, the under cover 40 includes the cover body 41 formed of the cover material 30 that exhibits a sound insulating effect and a sound absorbing effect. An effect and a sound absorption effect can be produced. Further, since the female hole portion 58 is formed in the cover body 41 by being integrally formed with the cover body 41, the female hole portion 58 of the under cover 40 and the male protrusion 28 of the rear attachment portion 25 are provided. The under cover 40 can be attached to the rear attachment portion 25 by engaging the. Further, since the female hole portion 58 is formed to have an opening shape that is partitioned by a closed opening peripheral edge 59 whose whole circumference is continuous with one another, the opening in which the fitting of the male ridge portion 28 is closed is formed. It can be reliably received at the peripheral edge 59. Further, since the female hole portion 58 is integrated with the cover body 41 so as to receive a supporting force from the cover body 41, the force applied to the female hole portion 58 is dispersed in the cover body 41, so that the female hole portion The fitting of the male protrusion 28 with respect to 58 can be supported. In this way, both the sound insulation effect and the sound absorption effect can be achieved at one point of the under cover 40, and an installation member for attaching the under cover 40 is not required, and the installation portion of the vehicle interior 11 can be provided. On the other hand, the under cover 40 can be attached.
Further, according to the mounting structure of the under cover 40 described above, the portion where the insertion structure 51 and the engaging portion 55 are provided increases the density of the cover material 30 by compressing and molding the cover material 30 in the thickness direction. Therefore, the rigidity can be increased more than the density of the normal cover material 30. Accordingly, when supporting the force at the portion where the insertion structure 51 and the engaging portion 55 are provided, the mounting support can be kept good with the support force due to the increased rigidity. Further, since the insertion structure 51 is formed by an insertion structure, the rear attachment portion 25 is inserted by inserting the insertion structure 51 into a receiving structure provided in the rear attachment portion 25 of the vehicle interior 11. Can be attached to. Further, since the engaging portion 55 is formed by the female hole portion 58, the engaging portion 55 is engaged with the male protrusion 28 of the rear mounting portion 25 of the vehicle interior 11, so that It can be attached to the side attachment portion 25. In this way, it is possible to simplify the attachment of the under cover 40 while maintaining a good attachment state of the under cover 40. Further, according to the mounting structure of the under cover 40 described above, since the cover body 41 is formed by being divided into the rigid portion 42 and the sound absorbing portion 45, the rigidity for being supported by the rear mounting portion 25 is increased. In addition, the sound absorption effect of the cover body 41 can be enhanced. That is, the sound absorption effect of the cover body 41 can be efficiently ensured while the attachment support of the under cover 40 can be obtained satisfactorily. In addition, the rigid portion 42 is set so as to increase the density of the cover material 30 by compressing and molding the cover material 30 in the thickness direction, so that a member for increasing the rigidity is not particularly required. The rigidity of the cover body 41 can be increased. In this manner, the sound absorption effect by the under cover 40 can be ensured well while the supporting force when the under cover 40 is attached can be secured well.

  Note that the sound insulation cover mounting structure according to the present invention is not limited to the above-described embodiment, and may be configured by appropriately changing the location. That is, in the above-described embodiment, the under cover 40 attached to the lower position of the glove box 13 of the passenger seat 12 in the vehicle compartment 11 is described as an example of the sound insulating cover according to the present invention. However, the sound insulation cover according to the present invention is not limited to such an example of the under cover 40, and can be applied to all sound insulation covers that are installed in places where a sound insulation effect and a sound absorption effect are expected in the vehicle interior. it can. Moreover, the cover material 30 which comprises the above-mentioned under cover 40 is an example of the material which has a sound-insulating effect and a sound absorption effect, and is not limited to an above-described example as a material which concerns on this invention. Further, in the under cover 40 of the above-described embodiment, the front side is configured as the insertion structure 51 and the rear side is configured as the engagement portion 55 (engagement structure). However, the sound insulation cover according to the present invention is not limited to this, and both the front side and the rear side may be configured by an engagement structure.

10 Automobile (vehicle)
DESCRIPTION OF SYMBOLS 11 Vehicle interior 12 Passenger seat 13 Glove box 15 Instrument panel 20 Attachment part 21 Front side attachment part 22 Bracket body 23 Insertion support hole 25 Rear side attachment part 26 Projection body 27 Fitting opening part 28 Male protrusion (engagement male) Part)
30 Cover material 31 Fiber structure 33 Skin 35 Non-breathable film 40 Under cover (sound insulation cover)
41 Cover body 42 Rigid part 43 Rigidity up rib 45 Sound absorption part 51 Insertion structure (support part)
52 plug male part 55 engaging part (support part)
56 Yamagata 561 Front side wall 562 Rear side wall 57 Notch 58 Female hole (engagement female part)
59 Opening edge

Claims (4)

A sound insulation cover mounting structure that is mounted in a vehicle compartment of a vehicle such as an automobile,
The sound insulation cover includes a cover body formed of a material that exhibits a sound insulation effect and a sound absorption effect,
The cover body is provided with an elastically deformable chevron part integrally with the cover body, and an engaging female part is formed on the side wall of the chevron part,
A fitting opening configured to be inserted while elastically deforming the mountain-shaped portion of the cover body is formed in the mounting portion to be mounted in the vehicle compartment, and the mountain-shaped portion is formed in the fitting opening. An engaging male part that engages with the engaging female part is provided,
The mounting structure of the sound insulation cover, wherein the engaging female portion is formed to have a female hole shape defined by an opening peripheral edge which is continuous and closed all around. In the sound insulation cover mounting structure according to claim 1,
The cover body is provided with a support portion supported by the mounting target in the vehicle compartment,
The portion of the cover body where the support portion is provided is a high-density portion where the material is compressed from the thickness direction,
One of the support portions is formed with an insertion structure that is inserted into a receiving structure provided on the attachment target in the vehicle compartment,
2. The sound insulation cover mounting structure according to claim 1, wherein the other support portion is formed by the engaging female portion engaged with the engaging male portion to be mounted in the vehicle compartment. In the sound insulation cover mounting structure according to claim 1 or 2,
The cover body is divided into a rigid part where the rigidity of the cover body is desired to be increased and a sound absorbing part where the sound absorbing effect is desired to be improved relative to the rigid part.
The sound insulation cover mounting structure , wherein the rigid portion of the cover body is a high-density portion in a state where the material is compressed from the thickness direction . In the sound insulation cover mounting structure according to claim 3,
The sound absorbing portion has a straight flat surface when viewed in cross-sectional shape,
The rigid portion has a curved wavy surface that is bent with respect to the flat surface when viewed in cross-sectional shape,
The mounting structure for a sound insulation cover, wherein the corrugated surface is formed in a rib shape by being continuous in the surface direction.

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