JP5512197B2 - Dash silencer for vehicles - Google Patents

Description

  The present invention relates to a vehicle dash silencer. More specifically, the present invention relates to a vehicle dash silencer disposed on the vehicle interior side of a dash panel that partitions the vehicle engine room and the vehicle interior.

  2. Description of the Related Art Conventionally, a vehicle dash silencer is known that is arranged on the vehicle interior side of a dash panel that partitions a vehicle engine room and a vehicle compartment to reduce or prevent noise and vibration in the engine room from entering the vehicle interior ( For example, Patent Document 1). In this dash silencer for vehicles, a lightweight soundproof material of a fiber laminate is mainly used in view of weight reduction, and for example, a fiber laminate such as a felt type is used.

  By the way, the dash panel that partitions the engine room and the vehicle compartment of the vehicle has various shapes depending on the vehicle type, and the vehicle interior side shape is not flat but has various uneven shapes. By forming the concave and convex shape and following the shape of the side surface of the vehicle interior, the vehicle interior side of the dash panel is covered without any gap to reduce or prevent noise and vibration in the engine room.

  Further, the dash panel is a part where many vehicle equipments that communicate between the engine room and the vehicle interior side are mounted, and an opening for attaching the vehicle equipments is provided. Also in the dash silencer for a vehicle, a hole is provided at a position corresponding to the opening. The hole is subjected to various operations such as a fitting operation from the vehicle interior side and a fitting operation from the vehicle interior side. For example, when attaching a grommet for a wire harness to a dash panel, a method of opening a large hole for attachment is adopted for the dash silencer for a vehicle. Moreover, the method of making the fiber laminated body including a hole part into a twisted structure is also employ | adopted. On the other hand, when the fitting operation is performed from the outside of the passenger compartment, a method of facilitating the mounting of the vehicle equipment while minimizing the diameter of the hole by setting a slit radially from the hole is employed.

  Here, there is a problem that noise and vibration in the engine room enter the vehicle interior side in the hole portion and the ring structure. The so-called noise and vibration performance due to the noise and vibration in the engine room directly affect the comfort of the car. As one of the methods for improving this noise and vibration performance, the material of the fiber laminate (fiber body) The method of increasing the maximum sheet thickness by increasing the basis weight of the was adopted.

JP 2007-210381 A

However, in order to increase the maximum thickness of the fiber laminate, it is necessary to raise a considerable amount of fabric weight. In addition, since the basis weight of the entire product must be increased, there is a concern that the thickness of the portion that does not require an increase in the thickness of the product is inevitably increased. In addition, when a large hole for mounting is opened, noise and vibration in the engine room can easily enter the vehicle interior side, and it cannot be said that the specifications are excellent in terms of noise and vibration performance. In addition, when the hole portion itself has a ring structure, since the vehicle equipment is mounted through the hole portion while the ring structure is being rolled, there is a concern that the mounting operation is one-handed and troublesome.
In addition, in the case of this twisted structure, there is a risk of sound leakage because the portion of the wound fiber laminate does not return to its original position, and there is a risk of sound leakage, and the packing state when mounting the vehicle equipment There are also concerns. On the other hand, the method adopted when fitting work from the outside of the passenger compartment (the method of setting slits radially from the holes and minimizing the diameter of the holes) is the slit when the vehicle equipment is attached. There is a problem that the part becomes a mouth opening and the sound leaks, and the slit part sometimes makes it difficult to penetrate when the vehicle equipment is penetrated.

  In view of this, the present inventor has intensively studied a structure that improves noise and vibration performance of a necessary part without significantly increasing the mass in the vehicle dash silencer. As a result, in the manufacturing process of the vehicle dash silencer, after the fiber laminate as the material of the vehicle dash silencer is heated and pressurized, the outer trim is performed, and a hole is formed inside the product of the vehicle dash silencer. In the process of forming, attention was paid to the outside of the product that is removed as the outside of the product. That is, if this product external position can be used effectively, the product plate thickness can be increased only at a necessary portion without significantly increasing the mass, and noise and vibration performance can be improved. In addition, by devising the shape of the outside of the product, troublesome mounting work can be improved and workability can be improved.

  Thus, the present invention was devised in view of such points, and the problem to be solved by the present invention is that only a necessary portion of a vehicle dash silencer is required without causing a significant increase in mass. The purpose is to increase the product thickness to improve noise and vibration performance.

In order to solve the above problems, the vehicle dash silencer of the present invention takes the following means.
First, a vehicular dash silencer according to a first aspect of the present invention is a vehicular dash silencer disposed on a vehicle interior side of a dash panel that partitions an engine room and a vehicle compartment of the vehicle, and the dash silencer includes a fiber laminate. It is formed by heating and pressure forming, is formed in a three-dimensional concavo-convex shape in accordance with the concavo-convex shape of the interior surface of the dash panel, and has a relatively large area arranged facing the dash panel. A dash silencer part and a relatively small area sub-dash silencer part arranged in a laminated state on the interior side of the main dash silencer part, the laminated state of the main dash silencer part and the sub-dash silencer part A locking means that can hold the laminated state of the two parts is provided between the two parts arranged as the sub-dash. Silencer site is composed locked by the locking means are stacked at a location that is required on the sound insulation of the main dash silencer site, during molding and the main dash silencer site and vice dash silencer site Are arranged as a unitary state adjacent to each other in a plane, both are folded to form a laminated state, and the main dash silencer portion has a mounting hole for mounting vehicle equipment, The sub-dash silencer part is configured so as to be laminated at the position of the mounting hole. The sub-dash silencer part is cut into a through hole that evacuates interference with vehicle equipment and from the outer periphery toward the through hole. And the through hole is smaller than the mounting hole formed in the main dash silencer part. The sub-dash silencer part is configured to be laminated by bending the main dash silencer part to the interior side of the main dash silencer part with the main dash silencer part attached to the dash panel. The stopping means is provided at an end opposite to the position where the sub-dash silencer is bent .

According to the first aspect of the present invention, the main dash silencer part and the sub-dash silencer part are configured. This sub-dash silencer part is laminated and disposed at a place required for sound insulation performance, so that the overall weight of the product is not increased. Therefore, the product plate thickness is increased only in necessary parts without significantly increasing the mass, and noise and vibration in the engine room are reduced or prevented from entering the passenger compartment, thereby improving noise and vibration performance. be able to. In addition, the cost can be suppressed by greatly suppressing the increase in mass. Moreover, the state where the sub-dash silencer part is laminated and disposed at a place required for sound insulation performance of the main dash silencer part can be maintained by the locking means.
Also, since the main dash silencer part and the sub-dash silencer part are arranged and formed in a unitary state adjacent to each other at the time of molding, the main dash silencer part is attached after the main dash silencer part is attached to the dash panel. The workability can be improved because the work is folded to the interior side of the vehicle to obtain a laminated state.
Further, a part where noise and vibration in the engine room enter the vehicle interior side and the influence of noise and vibration performance is remarkable is a part of the mounting hole for mounting the vehicle equipment. Therefore, by forming a sub-dash silencer part at the part of the mounting hole and increasing the product plate thickness, it is possible to efficiently improve noise and vibration performance.
In addition, the sub-dash silencer part is formed with a through hole that evacuates interference with vehicle equipment and a cut groove that is cut from the outer periphery toward the through hole. It is formed smaller than the mounting hole formed in the part. That is, the secondary dash silencer part allows the vehicle equipment to pass through the groove portion of the cut groove formed in the secondary dash silencer part when the laminated part is arranged on the vehicle interior side of the main dash silencer part, and the through hole is the main hole. It is the structure arrange | positioned in the position of the attachment hole of a dash silencer site | part. Further, since the through hole is formed to be smaller than the mounting hole of the main dash silencer part, it avoids interference with vehicle equipment and suppresses noise and vibration in the engine room from entering the vehicle interior side. It is configured.

Next, a second invention is characterized in that, in the first invention described above, the locking means is constituted by a hook-and-loop fastener .

  According to the present invention, by taking the measures of the above-described inventions, the vehicle dash silencer can increase the product plate thickness only at a necessary portion without significantly increasing the mass, and can improve noise and vibration performance.

It is the whole perspective view which showed roughly the body attachment state of the dash silencer for vehicles concerning this example. It is the longitudinal cross-sectional view which showed roughly the vehicle body attachment state of the dash silencer for vehicles which concerns on a present Example. It is the top view which showed the dash silencer for vehicles which concerns on a present Example. It is the top view which showed the modification of the dash silencer for vehicles which concerns on a present Example. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG. It is the VIII-VIII sectional view taken on the line of FIG. FIG. 4 is a partially enlarged perspective view of a position IX in FIG. 3. It is a partial expansion perspective view of the position of X of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a vehicular dash silencer according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6, 9, and 10. FIG.
FIG. 1 is an overall perspective view schematically showing a vehicle body mounting state of a vehicle dash silencer according to the present embodiment. FIG. 2 is a longitudinal sectional view schematically showing a vehicle body mounting state of the vehicle dash silencer according to the present embodiment.
As shown in FIGS. 1 and 2, a dash panel P that partitions an engine room E and a vehicle compartment R of the vehicle is arranged and configured. This dash panel P is a plate-shaped member made of steel plate formed by press molding, and has a complicated three-dimensional concavo-convex structure to avoid interference with the vehicle structure such as the vehicle body structure and steering, brake device, or various pipes. It is formed in a shape.
In addition, various shapes of openings (not shown) provided in a penetrating manner for attaching the vehicle equipment to the dash panel P are formed.
In addition, in order to attach the dash silencer 10 for a vehicle to the inner surface side of the compartment R of the dash panel P, stud bolts (not shown) projecting from the inner surface of the compartment R are configured.

As shown in FIG. 2, a vehicle dash silencer 10 is arranged on the dash panel P on the vehicle compartment R side. This vehicle dash silencer 10 reduces or prevents noise and vibration such as engine sound, running sound, and vibration sound in the engine room E from entering the vehicle interior R, and ensures quietness in the vehicle interior R. Is configured to do.
FIG. 3 is a plan view showing the dash silencer 10 for a vehicle. The vehicle dash silencer 10 is roughly configured by a main dash silencer part 20, a sub-dash silencer part 30, and a locking means 40 that holds both parts in a stacked state. Details of each component will be described below.

The main dash silencer part 20 will be described.
As shown in FIG. 3, the main dash silencer portion 20 is a dash silencer configured from a relatively large area fiber laminate disposed facing the dash panel P (see FIG. 2). The main dash silencer part 20 is configured to face the dash panel P (see FIG. 2), and the outer shape is formed so as to cover the inner surface side of the passenger compartment R (see FIG. 2) of the dash panel P. In addition to being formed into a three-dimensional concavo-convex shape in accordance with the concavo-convex shape of the inner surface of the passenger compartment R, a mounting hole 22 for opening a vehicle equipment such as a steering, a brake device or various pipes is opened. Yes.

  The main dash silencer part 20 is formed by spreading a binder resin on fiber scraps gathered in a mat shape as a fiber laminate, heating it, setting it in a predetermined mold, and press-molding it to thick-walled portion 24. (Refer FIG. 5) and the thin part 26 (refer FIG. 5) are mixed, and it becomes the structure from which thickness differs partially. By trimming the portion where the thin portion 26 is formed by a not-shown cutout die, the outer shape is trimmed, and an attachment hole 22 for attaching a vehicle equipment such as a steering, a brake device, or various pipes is opened. .

The sub-dash silencer part 30 will be described.
Here, in describing the sub-dash silencer part 30, the configuration of the sub-dash silencer part 30a disposed in a stacked state in the mounting hole 22a of the main dash silencer part 20 will be described as a representative.
As shown in FIG. 3, the secondary dash silencer part 30 a is disposed in a laminated state on the inner surface side of the vehicle interior R (see FIG. 2) of the main dash silencer part 20. It is comprised from the fiber laminated body of a relatively narrow area compared with. The sub-dash silencer part 30a reduces and prevents noise and vibration from entering the passenger compartment R by being stacked and disposed at a place required for sound insulation performance of the main dash silencer part 20. The sub-dash silencer part 30a is formed in the same manner as the main dash silencer part 20, in which a binder resin is sprayed on fiber scraps gathered in a mat shape as a fiber laminate, heated, and then subjected to a predetermined molding die. The thick wall portion 24 (see FIG. 5) and the thin wall portion 26 (see FIG. 5) are mixed and the thickness is partially different.

The sub-dash silencer part 30a is arranged and formed as an integral state adjacent in plan when the main dash silencer part 20 is molded. The sub-dash silencer part 30 a is disposed adjacent to the outer periphery of the side of the product part of the main dash silencer part 20 and is press-molded together with the main dash silencer part 20.
That is, the formation position of the secondary dash silencer part 30a is different from the product part in the range where the main dash silencer part 20 is attached to the dash panel P. Formed in position. The boundary between the outer periphery of the main dash silencer part 20 and the sub-dash silencer part 30a is formed as a thin part 26 by press molding, and can be stacked on the main dash silencer part 20 by being folded at the position of the thin part 26. It is configured.
In the present embodiment, the sub-dash silencer part 30a is shown as being disposed adjacent to the outer periphery of the side part of the product part of the main dash silencer part 20. However, the present invention is not limited to this, and in the present invention, the sub-dash silencer part may be any structure as long as it is arranged and formed as a unitary state adjacent to each other when molding the main dash silencer part. The structure formed at the position of the main dash silencer part outside the product may be a structure disposed adjacent to the upper outer periphery or a structure disposed adjacent to the lower outer periphery in the illustration of FIG.

  Further, in this embodiment, the sub-dash silencer part 30a is configured to be stacked and disposed at the position of the mounting hole 22a. That is, the sub-dash silencer part 30a is configured to be able to be folded and stacked at a position corresponding to the mounting hole 22a formed in the main dash silencer part 20. Further, a through hole 32a is formed in the sub-dash silencer part 30a corresponding to the mounting hole 22a of the main dash silencer part 20 for retracting interference with vehicle equipment. This through hole 32a is formed smaller than the mounting hole 22a formed in the main dash silencer part 20, and the minimum hole part through which vehicle equipment can be inserted is formed. Further, in order to facilitate the insertion of vehicle equipment through the position of the through hole 32a, a cut groove 34 is formed which is cut from the outer periphery of the sub-dash silencer part 30a toward the through hole 32a.

The locking means 40 will be described.
As shown in FIG. 3, the locking means 40 is used to hold the sub-dash silencer part 30 in a laminated state on the inner surface side of the passenger compartment R (see FIG. 2) of the main dash silencer part 20 described above. It is configured. In this embodiment, a hook-and-loop fastener is used as the locking means 40. The surface fastener is configured to be engaged by engaging and joining the engaging surface and the engaged surface. An engagement surface is attached to one of the overlapping surfaces of the main dash silencer part 20 and the sub-dash silencer part 30, and an engaged surface is attached to the other, and the engagement surface and the engaged surface overlap each other. It is the structure which hold | maintains between both parts as a lamination | stacking state by couple | bonding.

In the sub-dash silencer part 30a, a configuration in which the sub-dash silencer part 30a is laminated at the position of the mounting hole 22a required for sound insulation performance of the main dash silencer part 20 will be described.
FIG. 5 is a sectional view taken along line VV in FIG. FIG. 9 is a partially enlarged perspective view of the position IX in FIG. As shown in FIGS. 5 and 9, an opening (not shown) is formed on the dash panel P at the same position as the mounting hole 22a, and vehicle equipment is provided in the opening (not shown). It is attached. In the present embodiment, attachment of the wire harness 50 will be described as an example of vehicle equipment. The wire harness grommet 52 is fitted into a hole (not shown) provided in the dash panel P with a seal material (not shown) interposed therebetween. The wire harness grommet 52 is fixed by hooking a claw portion into the hole of the panel and sandwiching the panel and the sealing material between the inner wall surface of the claw portion and the flat surface of the wire harness grommet 52.
Then, the main dash silencer part 20 is attached onto the dash panel P by fastening and coupling the main dash silencer part 20 through a stud bolt (not shown) of the dash panel P. At this time, the wire harness grommet 52 and the wire harness 50 fitted to the dash panel P are inserted into the mounting holes 22a of the main dash silencer part 20. The sub-dash silencer part 30a is bent at the position of the thin wall portion 26 formed at the boundary with the main dash silencer part 20, and is disposed in a laminated state on the inner surface side of the passenger compartment R of the main dash silencer part 20.
At this time, the wire harness 50 is disposed in the through hole 32a through the cut groove 34 and disposed in a stacked state. Then, the pair of surface fasteners attached to the main dash silencer part 20 and the sub-dash silencer part 30a are overlapped and joined to maintain the stacked state of both dash silencer parts.

According to the vehicular dash silencer 10 having such a configuration, the vehicular dash silencer portion 20 and the sub dash silencer portion 30a are configured. Since the sub-dash silencer part 30a is laminated and disposed at a place required for sound insulation performance, the overall weight of the product is not increased. Therefore, the product plate thickness is increased only in necessary parts without significantly increasing the mass, and noise and vibration in the engine room E are reduced or prevented from entering the vehicle interior, thereby improving noise and vibration performance. Can be planned.
Moreover, according to this dash silencer 10 for vehicles, the function which attenuate | damps the noise which invaded the vehicle interior R, and the sound generated in the vehicle interior R is also made.

  Further, since the main dash silencer part 20 and the sub-dash silencer part 30a are arranged and formed as a unitary state adjacent to each other at the time of molding, after the main dash silencer part 20 is attached to the dash panel P, The workability can be improved because it is an operation in which the main dash silencer part 20 is folded to the inner surface side of the vehicle interior R to form a laminated state.

Further, the part where the noise and vibration in the engine room E enter the inside of the passenger compartment R and the influence of noise and vibration performance is remarkable is a part of the attachment hole 22a for attaching the vehicle equipment. For this reason, the sub-dash silencer part 30a is formed at the part of the mounting hole 22a to increase the product plate thickness, whereby noise and vibration performance can be improved efficiently.
Further, the sub-dash silencer part 30a is formed with a through hole 32a for retracting interference with vehicle equipment and a cut groove 34 cut from the outer periphery toward the through hole 32a. The through hole 32a Is formed smaller than the mounting hole 22a formed in the main dash silencer part 20. That is, the secondary dash silencer part 30a passes the vehicle equipment through the groove portion of the cut groove 34 formed in the secondary dash silencer part 30a when being arranged in a stacked state on the inner surface side of the vehicle interior R of the main dash silencer part 20. The through hole 32a is arranged at the position of the mounting hole 22a of the main dash silencer part 20. Further, since the through hole 32a is formed smaller than the mounting hole 22a of the main dash silencer part 20, interference with the vehicle equipment is evacuated, and noise and vibration in the engine room E are inside the vehicle compartment R. It is set as the structure which suppresses intrusion.

  In the present embodiment, the sub-dash silencer part 30a is shown as having a configuration in which the main dash silencer part 20 is integrally adjacent to each other when the main dash silencer part 20 is molded. That is, the boundary between the outer periphery of the main dash silencer part 20 and the sub-dash silencer part 30a is formed as a thin portion 26 by press molding and is integrally connected as an integral hinge. FIG. 4 is a plan view showing a modification of the vehicle dash silencer according to the present embodiment. FIG. 6 is a sectional view taken along line VI-VI in FIG. 10 is a partially enlarged perspective view of a position X in FIG. As shown in FIGS. 4, 6, and 10, in the modification of the first embodiment, the sub-dash silencer part 30 b is separated from the main dash silencer part 20 at the position of the thin portion 26 in the first embodiment. And is configured as a separate body and arranged in a stacked state at the position of the mounting hole 22b. Such a modification is applied to a portion that is difficult to form as the main dash silencer portion 20 and the sub-dash silencer portion 30b are adjacent and integrated.

Next, a vehicular dash silencer according to Embodiment 2 of the present invention will be described with reference to FIGS. 3, 4, 7, and 8. FIG.
Here, as a representative, the configuration of the sub-dash silencer part 30c disposed in a stacked state in the mounting hole 22c of the main dash silencer part 20 will be described. In addition, the same code | symbol may be attached | subjected to the same component as the said Example 1, and description may be abbreviate | omitted. In the second embodiment, the arrangement position of the sub-dash silencer part 30c is different from the first embodiment. That is, as shown in FIGS. 3 and 7, the main dash silencer part 20 has a mounting hole 22 c for mounting the vehicle equipment. And it is a thing of the structure which forms a part or all of the site | part cut out in order to form this attachment hole 22c as the sub dash silencer site | part 30c.

As shown in FIGS. 3 and 7, a part of the edge of the mounting hole 22 c is cut out to form a mounting hole 22 c of the main dash silencer part 20 formed as the sub-dash silencer part 30 c. The silencer part 20 is connected integrally. This connection state portion is bent so that the cut out portion of the sub-dash silencer portion 30c is laminated with respect to the main dash silencer portion 20.
The sub-dash silencer part 30c is arranged in a stacked manner at the position of the attachment hole 22c, and a through hole 32c is formed corresponding to the attachment hole 22c of the main dash silencer part 20 to evacuate interference with vehicle equipment. Regarding the configuration, a configuration in which a cut groove 34 cut from the outer periphery of the sub-dash silencer part 30c toward the through hole 32c is formed in order to facilitate insertion of the vehicle equipment at the position of the through hole 32c. Is the same as in Example 1. Although the arrangement position of the sub-dash silencer part 30c in the second embodiment is different from that in the first embodiment, the formation method is the same as in the first embodiment.

From the above, the sub-dash silencer part 30c of the second embodiment performs the same function as that of the first embodiment, and can obtain the same actions and effects as well as the following actions and effects. That is, the configuration of the sub-dash silencer part 30c utilizes part or all of the part cut out in order to form the attachment hole 22c for the main dash silencer part 20 to attach the vehicle equipment. Therefore, conventionally, the part cut out to form the mounting hole 22c is a part that has been removed and discarded, but since this is a configuration that can be effectively used as the sub-dash silencer part 30c, a significant increase in mass is achieved. It is possible to improve the noise and vibration performance by increasing the thickness of the product only at a necessary portion without causing the noise.
In addition, the part to be cut out to form the mounting hole 22c of the main dash silencer part 20 formed as the secondary dash silencer part 30c has a part of the edge of the mounting hole 22c integrally connected to the main dash silencer part 20. The mounting workability of the sub-dash silencer part 30c is improved.

As shown in FIGS. 3 and 7, in the second embodiment, the secondary dash silencer part 30 c is an edge of the attachment hole 22 c at a part cut out to form the attachment hole 22 c when the main dash silencer part 20 is formed. A part of the main dash silencer part 20 is shown in an integrally connected state. That is, the boundary between the main dash silencer part 20 and the sub-dash silencer part 30c is formed as a thin portion 26 by press molding and is integrally connected.
FIG. 4 is a plan view showing a modification of the vehicle dash silencer according to the present embodiment. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. As shown in FIGS. 4 and 8, as a modification of the second embodiment, the sub-dash silencer part 30d is cut off at the position of the thin portion 26 of the mounting hole 22 and configured as a separate body. A configuration arranged in a stacked state can be applied.

In addition, this invention is not limited to the said Example, In the range which does not deviate from the summary of this invention, it can also be implemented with a various form.
In the above embodiment, the locking means 40 is shown as a hook-and-loop fastener. However, the present invention is not limited to this, and various locking means can be applied as the locking means in the present invention. For example, it may be a locking means for engaging the main dash silencer part 20 and the sub-dash silencer part 30 with a resin clip, or may be a means for locking by a fastening means such as a bolt nut or a screw member. Further, a cut slit may be provided in one of the main dash silencer part 20 and the sub dash silencer part 30, and the end of the fiber laminate may be inserted into the slit on the other. . Moreover, you may combine said above.

  Moreover, in the said Example, the structure arrange | positioned in the position of an attachment hole was demonstrated as a structure arrange | positioned in the location where a sub dash silencer site | part is required by the sound insulation performance of a main dash silencer site | part. However, the position required for the sound insulation performance of the main dash silencer part is not limited to this, and is not limited to the position of the mounting hole, but also applies to each position of the main dash silencer part where the mounting hole is not formed. It can be done.

10 Vehicle Dash Silencer 20 Main Dash Silencer Part 22a Mounting Hole 22b Mounting Hole 22c Mounting Hole 22d Mounting Hole 24 Thick Part 26 Thin Part 30a Sub Dash Silencer Part 30b Sub Dash Silencer Part 30c Sub Dash Silencer Part 30d Sub Dash Silencer Part 32a Through hole 32b Through hole 32c Through hole 32d Through hole 34 Cut groove 40 Locking means 50 Wire harness 52 Grommet E for wire harness E Engine room R Car compartment P Dash panel

Claims (2)

A dash silencer for a vehicle disposed on a vehicle interior side of a dash panel that partitions a vehicle engine room and a vehicle compartment,
The dash silencer is formed by heating and pressure forming a fiber laminate, and is formed in a three-dimensional concavo-convex shape according to the concavo-convex shape of the interior surface of the dash panel so as to face the dash panel. A relatively large area of the main dash silencer part, and a relatively small area of the secondary dash silencer part disposed as a stacked state on the vehicle interior side of the main dash silencer part,
Between both parts arranged as a laminated state of the main dash silencer part and the sub-dash silencer part, a locking means that can hold the laminated state of both parts is provided,
The sub-dash silencer part is configured to be laminated and locked by the locking means at a position required for sound insulation performance of the main dash silencer part ,
The main dash silencer part and the sub-dash silencer part are arranged and formed as a unitary state adjacent to each other at the time of molding, and both are folded into a laminated state.
The main dash silencer part is configured to have a mounting hole for mounting vehicle equipment, and the sub-dash silencer part is configured to be stacked at the position of the mounting hole,
The sub-dash silencer part is formed with a through hole that evacuates interference with vehicle equipment and a cut groove that is cut from the outer periphery toward the through hole,
The through hole is formed smaller than a mounting hole formed in the main dash silencer part,
The sub-dash silencer part is a configuration in which the main dash silencer part is attached to the dash panel and folded into a vehicle interior side of the main dash silencer part to be laminated,
The vehicle dash silencer, wherein the locking means is provided at an end opposite to a position where the sub-dash silencer is bent . A dash silencer for a vehicle according to claim 1,
The vehicular dash silencer is characterized in that the locking means is constituted by a hook-and-loop fastener .

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