JP5322428B2 - Cowl top cover - Google Patents

Description

  The present invention relates to a vehicle using a lane force material for reinforcing a vehicle body that enhances the rigidity of the vehicle body, and a cowl box in which the other end portion of the lane force material for vehicle body reinforcement whose one end portion is fixed in an engine room is beyond the dash panel. It relates to a cowl top cover that can be fixed to the section.

  Conventionally, it has been known to improve vehicle driving performance and steering stability by increasing vehicle body rigidity. That is, by increasing the rigidity of the vehicle body, it is possible to draw out the performance of the suspension. Lateral G during cornering (a lateral force that acts during traveling, and during cornering, a particularly large lateral G is caused by the action of centrifugal force. It is possible to prevent the body frame from being twisted due to the influence of the vehicle). In addition, effects such as suppressing changes in the tire contact angle are brought about by increasing the rigidity of the vehicle body.

  However, if the vehicle body is reinforced to increase the vehicle body rigidity, the vehicle body weight increases, which adversely affects fuel consumption. Moreover, it will be directly affected by the road surface, which will adversely affect riding comfort.

  These two relationships are often conflicting. That is, if a reinforcing material is added to increase the strength of the vehicle body, the mass increases and the vehicle body weight increases, resulting in poor fuel consumption. Conversely, if the weight is reduced by reducing the reinforcing member, the fuel efficiency is improved, but the torsional rigidity of the vehicle body is reduced.

  The structure of the body of the monocoque, which is a monocoque body and frame integrated into the body structure, increases the build-up amount at the weld and adds welding points to increase the strength of the monocoque body structure. It has been done to raise.

In addition, in a body structure of a monocoque, a body structure is strengthened by connecting predetermined parts of the body with a reinforcing member. Furthermore, the body structure using the reinforcing member is adopted while improving the strength at the welded portion.
In addition, the body structure of the monocoque is configured so that the strength of the body is maintained throughout the combined parts.

  A lane force material for reinforcing a vehicle body is used as a reinforcing member that connects predetermined parts of the body. As a configuration example using the lane force material, a front body structure of a vehicle described in Patent Document 1 is used. Etc. have been proposed. The front vehicle body structure described in Patent Document 1 is taken as a conventional example in the present invention, and FIG. 10 is a plan view of the main part of the front part of an automobile to which the front vehicle body structure is applied.

  As shown in FIG. 10, the dash panel 50 and the strut tower 51 are connected by a diagonal member 52 arranged as a lane force material. One end portion of the diagonal member 52 is fixed to the strut tower 51, and the other end portion is fixed to the wall portion of the dash panel 50 that defines the engine room and the vehicle interior.

By arranging the diagonal member 52 in this way, the torsional rigidity of the vehicle body is increased, and even when an impact force that moves the strut tower backward is applied when the vehicle collides from the front, the impact force is applied to the brake operating device. It is configured so that it can be received not only by 53 but also by the diagonal member 52. The diagonal member 52 prevents the portion of the dash panel 50 that supports the brake operation device 53 from moving backward.
Japanese Patent Laid-Open No. 2001-138952

  In the front body structure described in Patent Document 1, the dash panel 50 and the strut tower 51 are connected by a diagonal member 52. And the torsional rigidity of the vehicle body is increased. However, when the distance between the dash panel 50 and the strut tower 51 is short, the length of the diagonal member 52 is shortened, so that the reinforcement effect of the diagonal member 52 against the strength of the body, in particular, the torsion of the body is small. turn into.

  In particular, in recent years, a design philosophy of a so-called man-maximum and machine-minimum design has been widely adopted that has a wide living space and a minimum engine room configuration with a drive source. For this reason, the space in the engine room is becoming narrower. In such a vehicle, if improvement in comfort and athletic performance is attempted, the space between the dash panel 50 and the strut tower 51 is reduced. The interval of is further narrowed.

  Therefore, when the end of the diagonal member 52 is fixed between the strut tower 51 and the wall of the dash panel 50 as in Patent Document 1, the length of the diagonal member 52 is further shortened. It will be done.

A configuration in which the diagonal member 52 as the lane force material is fixed to the cowl box portion beyond the dash panel 50 is also conceivable. Must be formed. If a through hole or a notch is formed in the dash panel 50, the strength of the dash panel 50 is reduced.
In addition, air with an odor in the engine compartment flows into the vehicle compartment through the through holes and notches formed in the dash panel 50.

  The present invention is intended to solve these problems in the prior art, and is made by paying attention to a cowl top cover disposed between the dash panel and the front wind seal, and has one end portion disposed on the engine. An object of the present invention is to provide a cowl top cover in which the other end portion of the lane force material fixed in the room can be fixed to the cowl box portion. The cowl top cover of the present invention allows outside air to be taken into the vehicle compartment and prevents air with an odor in the engine compartment from flowing into the vehicle compartment. .

The object of the present invention can be achieved by the inventions described in claims 1 to 5.
That is, according to the present invention, the cowl top cover is formed between the dash panel defining the engine room and the cowl box portion and the windshield seal, and is formed with an outside air introduction hole for introducing outside air into the vehicle interior. Each of the lane force members for reinforcing the vehicle body has one end fixed in the engine room and the other end fixed in the cowl box beyond the dash panel, and one end of each lane force member. The part side part and the other end part side part of each lane force material are defined by the cowl top cover, and the other end part of each lane force material is fixed to the cowl box part in the cowl box part. It is made in the cowl box portion, the cover and the other end of the linking member material from below, of the respective linking member material And the under cover the mounting hole for exposing a portion of the vehicle body panel to secure the ends is formed, wherein the under cover portion is constituted by separate members, the upper and the other end of each linking member material it and a first cover portion that covers from
A flow path is formed in the cowl top cover to guide outside air taken in from the outside air introduction hole into the vehicle compartment, and shuts off mixing of outside air introduced into the flow path and air in the engine room. The most important feature is that the portion is formed on the cowl top cover.

Further, the cowl top cover of the present invention, the other end portions of the linking member material, the disposed intersect in the cowl box portion, intersections that the intersecting is fixed to the cowl box portion, before The main feature of the blocking section is that it is provided in the periphery of the intersection.

  Furthermore, in the cowl top cover of the present invention, the main feature is that the blocking portion is formed at a portion where the lane force material is sandwiched between the first cover portion and the under cover portion. Yes.

Furthermore, in the cowl top cover of the present invention, the main feature is that the blocking portion is provided at a contact portion between the first cover portion and the under cover portion.
Further, in the cowl top cover of the present invention, the main feature is that the blocking portion is configured as a member that covers and covers the periphery of the flow path that guides outside air taken in from the outside air introduction hole into the vehicle interior. There is no.

With the cowl top cover of the present invention, the fixed portion of the lane force material can be extended to the inside of the cowl box portion , while making the living space wider and satisfying the design requirements to minimize the configuration in the engine room By using a long lane force material, a reinforcing effect on the vehicle body can be obtained.

  In addition, one end side of the lane force material fixed in the engine room and the lane force material fixed in the cowl box portion without forming a through hole or notch for penetrating the lane force material in the dash panel. The end side can be defined by a cowl top cover.

Further, the structure of the cowl top cover can have a function of preventing the air in the engine room from being mixed into the outside air taken into the vehicle compartment via the cowl top cover. Thereby, the intake performance of the air introduced into the vehicle interior can be secured.

  In the present invention, the other end portions of the lane force members can be arranged so as to intersect with each other in the cowl box portion, and the intersecting intersection portion can be fixed to the cowl box portion. The length of the material can be long.

  Moreover, as a configuration of the cowl top cover, an under cover portion that covers the intersection portion of the lane force material from below and a first cover portion that is configured separately from the under cover portion and covers the intersection portion from above. It can be configured to have.

  With this configuration, after the under cover portion is placed, the intersection of the lane force materials can be fixed to the cowl box portion. After the intersection of the lane force materials is fixed to the cowl box portion, the first cover portion The intersection of lane force materials can be obscured. Moreover, by fixing the intersection portion of the lane force material to the cowl box portion, the lane force material can be arranged as two sides of the triangle, and the reinforcing effect for preventing the twisting of the body can be enhanced.

  Further, a flow path for guiding the air taken from the outside air introduction hole of the cowl top cover into the vehicle interior can be formed in the cowl top cover. In addition, a blocking portion that prevents the air in the flow path and the air in the engine room from mixing can be formed in the cowl top cover.

  Thus, even if the flow path for guiding the outside air to the vehicle interior is not specially configured, the cowl top cover having the blocking portion can be configured as an independent air flow path from the outside air introduction hole of the cowl top cover to the vehicle interior. I can leave. In addition, by using the cowl top cover according to the present invention between the dash panel and the front window seal, the intersection of the lane force materials can be fixed to the cowl box. And the said independent air flow path can be comprised in a motor vehicle.

In this invention, the said interruption | blocking part can be formed in the site | part which has inserted the lane force material between the 1st cover part and the under cover part.
With this configuration, the blocking portion can be formed in a portion where the lane force material is sandwiched between the first cover portion and the under cover portion, and air on the engine room side enters the cowl top cover. Can be prevented. At this time, as the blocking portion, a sealing material, a sponge material, a porous foam, or the like that can surround the outer peripheral surface of the lane force material can be used.

In this invention, the said interruption | blocking part can be provided in the site | part which a 1st cover part and an under cover part contact | abut.
With this configuration, the flow path for guiding the air taken from the outside air introduction hole of the cowl top cover to the vehicle interior is formed on the outer peripheral side of the first cover portion of the cowl top cover independently of the engine room. I can leave. Thereby, it is possible to effectively prevent the odor in the engine room from flowing into the vehicle interior. As the blocking portion, a sealing material, a sponge material, a porous foam, or the like can be used.

  In the present invention, the blocking portion can cover the periphery of the flow path for guiding the air taken from the outside air introduction hole of the cowl top cover to the vehicle interior. As a configuration for covering the periphery of the flow path, the material that forms the cowl top cover may be configured to surround the vertical and horizontal directions of the flow path, or the member that is separate from the member that forms the cowl top cover may be used. It can also be configured so as to surround the vertical and horizontal directions of the road. Alternatively, the outside air introduction hole of the cowl top cover and the vehicle interior can be communicated with each other using a tube or the like.

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. As the cowl top cover of the present invention, in addition to the configuration described below, any configuration and configuration that can solve the problems of the present invention should be adopted as the cowl top cover according to the present invention. Is something that can be done. For this reason, this invention is not limited to the Example demonstrated below, A various change is possible.

FIG. 1 is a main part perspective view showing a positional relationship between a cowl top cover 4 and a strut tower bar 9 used as a lane force material according to an embodiment of the present invention. 2 shows a sectional view taken along the line II-II in FIG. 1, and FIG. 3 shows a sectional view taken along the line III-III in FIG. 4 is a perspective view showing a main part of an under cover portion 4a of a cowl top cover 4 described later. FIG. 5 is a perspective view of the under cover portion 4a fixed to a vehicle body panel 21 (see FIG. 3) and a dash panel (not shown). 3 is a perspective view of a main part showing a pair of strut tower bars 9. FIG. FIG. 6 is a perspective view of the first cover portion 4b that can be detachably attached to the under cover portion 4a.
1 to 5, the arrangement configuration of the dash panel is omitted.

  The cowl top cover 4 can be disposed between a dash panel (not shown) and a front wind seal. The cowl top cover 4 includes at least an under cover portion 4a (see FIG. 5) and a first cover portion 4b (see FIG. 6). As shown in FIG. 2, the front wind seal 7 supports the lower end portion of the windshield 6 on the upper end side, and abuts on the cowl top cover 4 on the lower end side.

For example, the strut tower bar 9 has one end fixed to a strut tower that supports the top of the strut in a front wheel suspension (not shown), and the other end is fixed to a cowl box defined by the dash panel from the engine room. can do. In the cowl top cover 4, the strut tower bars 9 are arranged so as to cross each other.
As shown in FIG. 5, the crossing portion 26 of the strut tower bar 9 is fixed to the vehicle body panel 21 via a fixing bolt 22 erected on the vehicle body panel 21 (see FIG. 2).

  As an explanation in the embodiment, a configuration using a strut tower bar 9 as a lane force material will be described. However, the lane force material is not limited to the strut tower bar 9.For example, it is configured as a reinforcing member that fixes one end to a body frame such as a front side frame and the other end to a cowl box. You can also keep it.

  Further, the arrangement configuration in which the strut tower bar 9 intersects in the cowl top cover 4 will be described, but a predetermined interval is maintained without intersecting the ends of the pair of strut tower bars 9 in the cowl top cover 4. It can also be set as the structure spaced apart.

  In this case, a segment connecting one end of each strut tower bar 9 fixed in the engine room E, a segment connecting the other ends of each strut tower bar 9 fixed in the cowl top cover 4, And the planar shape formed by connecting the line segments by the pair of strut tower bars 9 is formed as an abutment trapezoid.

  In order to cross the ends of the pair of strut tower bars 9 and fix the crossing portion 26 to the cowl box portion, the pair of strut tower bars 9 can be arranged as two sides of a triangle. When a twisting force acts on the body, the twisting force can be countered by the pair of strut tower bars 9 having a triangular shape, and the twisting of the body can be prevented.

  As shown in FIG. 1, the cowl top cover 4 can be divided along a dividing line 18. For example, when the cowl top cover 4 is transported, the cowl top cover 4 is divided along the dividing line 18 so that the cowl top cover 4 can be divided into several parts in the vehicle width direction so as to be transportable.

  Further, as shown in FIG. 4, the cowl top cover 4 includes an under cover portion 4 a that can be disposed below the strut tower bar 9, and the under cover portion 4 a intersects with the strut tower bar 9. A mounting hole 12 for exposing a fixing bolt 22 (see FIGS. 2 and 5) for fixing the portion 26 is formed.

  As shown in FIG. 5, after attaching the intersection 26 of the strut tower bar 9 to the upper part of the under cover part 4a, the first cover part 4b (see FIG. 6) covering the intersection 26 of the strut tower bar 9 is attached. Thus, the arrangement as shown in FIG. 1 can be obtained. As shown in FIGS. 1 and 3, the first cover portion 4 b is formed with an outside air introduction hole 10 whose opening is covered with a mesh 10 a, and the outside air introduced from the outside air introduction hole 10 passes through the flow path 14. The outside air can be introduced into the vehicle interior (not shown).

  As shown in FIG. 1, the pair of strut tower bars 9 is sandwiched between the sandwiching portion 16 of the under cover portion 4a and the sandwiching portion 17 of the first cover portion 4b. On the inner peripheral surface of the sandwiching portion 16 and the inner peripheral surface of the sandwiching portion 17, a seal member 15 is provided as a blocking portion that prevents air in the engine room E from flowing into the flow path. The outer peripheral surface of each strut tower bar 9 can be surrounded by the seal member 15.

  In FIG. 3, the sealing member 15 provided on the inner peripheral surface of the sandwiching portion 16 is shown. As the sealing member 15, a known sealing material, sponge material, porous foam or the like can be used. In FIG. 3, the seal member 15 provided on the inner peripheral surface of the sandwiching portion 17 is not illustrated, but the strut tower is provided by the seal member 15 provided on the inner peripheral surface of the sandwiching portion 16 and the inner peripheral surface of the sandwiching portion 17. The outer peripheral surface of the bar 9 is surrounded in the circumferential direction.

  As shown in FIGS. 5 and 6, a hood seed mounting portion 13 is formed on the under cover portion 4a and the first cover portion 4b, and a hood 23 (see FIGS. 2 and 3) is formed on the hood seed mounting portion 13. Can be attached.

  With the fixing bolt 22 protruding from the mounting hole 12, the cowl top cover 4 shown in FIG. 4 is fixed to the dash panel and the vehicle body panel 21. Then, the fixing bolt 22 is inserted into the hole formed in the crossing portion 26 of the strut tower bar 9 and the nut 26 is screwed into the fixing bolt 22 to fix the crossing portion 26 of the strut tower bar 9 to the cowl box portion CB. Can do. After that, the crossing portion 26 of the fixed strut tower bar 9 is covered with the first cover portion 4b, so that the cowl top cover 4 is attached and the other end of the strut tower bar 9 is fixed to the engine room. The end can be fixed to the cowl box part CB beyond the dash panel.

  As a result, as shown in FIG. 1, the crossing portion 26 of the strut tower bar 9 can be fixed to the cowl box portion CB beyond the dash panel. Moreover, since the pair of strut tower bars 9 is sandwiched between the sandwiching portion 16 of the under cover portion 4a and the sandwiching portion 17 of the first cover portion 4b via the seal member 15, It is possible to prevent air from entering the flow path 14 in the cowl top cover 4 and flowing into the passenger compartment as it is.

  FIG. 7 is a perspective view of an exploded view before assembling the dash panel 5 on which the cowl top cover 24 according to the second embodiment of the present invention is placed, the cowl top cover 24 and the intersection 26 of the strut tower bar 9 are assembled. It is shown as a diagram. FIG. 8 shows a perspective view of the first cover portion 24b covering the crossing portion 26 of the strut tower bar 9, and FIG. 9 shows a cross-sectional view taken along the line IX-IX of FIG.

  In FIG. 7, the front side of the dash panel 5 is configured as an engine room E. A cowl top cover mounting portion 27 is formed on the upper surface of the dash panel 5. At the center of the cowl top cover mounting portion 27, a convex portion 27a that fits into the mounting hole 12 formed in the central portion of the cowl top cover 24 is formed. And the fixing bolt 22 which fixes the cross | intersection part 26 of a pair of strut tower bar 9 is standingly arranged by the convex part 27a.

  Outside air introduction holes 10 are formed on the left and right sides of the cowl top cover 24, and the openings of the outside air introduction holes 10 are covered with a mesh 10a to prevent dust and the like from entering the outside air introduction holes 10. . The center portion of the cowl top cover 24 is configured as an under cover portion 24a disposed below the intersecting portion 26 of the pair of strut tower bars 9, and an attachment hole 12 is formed in the center of the under cover portion 24a.

  The first cover portion 24b shown in FIG. 8 can be attached to the under cover portion 24a so as to surround the periphery of the attachment hole 12, and the inner surface side of the first cover portion 24b attached to the under cover portion 24a is a strut tower bar. It is configured as a storage space for storing nine intersections 26. Further, a seal member (not shown) is disposed on the lower cover edge 24a with which the lower end edge of the outer surface of the first cover section 24b or the lower end edge of the first cover section 24b abuts. With this seal member, the storage space for storing the intersecting portion 26 of the strut tower bar 9 is shielded from the flow path communicating with the outside air introduction hole 10.

  After the cowl top cover 24 having the under cover portion 24a is placed and fixed on the cowl top cover mounting portion 27 of the dash panel 5, the intersecting portions 26 of the pair of strut tower bars 9 are inserted into the fixing bolts 22. Then, by screwing the nut 22a to the fixing bolt 22, the intersecting portion 26 of the pair of strut tower bars 9 can be fixed to the cowl box portion. Thereafter, the first cover part 24b is fixed to the cowl top cover 24 provided with the under cover part 24a.

  As described above, the configuration of the cowl top cover 24 allows the introduction of outside air into the vehicle interior that does not mix with the outside air into the vehicle interior and the air in the engine compartment, and does not form a through hole or the like in the dash panel 5. Even so, the ends of the pair of strut tower bars 9 can be fixed to the cowl box.

  By applying the technical idea of the present invention, the cowl top cover can be used effectively.

It is a principal part perspective view which shows the arrangement | positioning relationship between a cowl top cover and a straddled tower bar. Example 1 It is II-II sectional drawing of FIG. Example 1 FIG. 3 is a sectional view taken along line III-III in FIG. 1. Example 1 It is a principal part perspective view of an undercover part. Example 1 It is a principal part perspective view which shows the arrangement | positioning relationship between an undercover part and a straddled tower bar. Example 1 It is a perspective view of a 1st cover part. Example 1 It is a principal part exploded view of the dash panel, the cowl top cover, and the straddled tower bar before assembly. (Example 2) It is a perspective view of a 1st cover part. (Example 2) It is IX-IX sectional drawing of FIG. (Example 2) It is a principal part perspective view which shows the arrangement structure of a diagonal member. (Conventional example)

Explanation of symbols

  4 ... Cowl top cover, 4a ... Under cover part, 4b ... First cover part, 9 ... Strut tower bar, 10 ... Outside air introduction hole, 24 ... Cowl top cover, 24a ... Undercover part, 24b ... First cover part, 26 ... Intersection, 50 ... Dash panel, 51 ... Strut tower, 52 ... Diagonal member, CB ... Cowl box Department, E ... engine room.

Claims (5)

A cowl top cover formed with an outside air introduction hole for introducing outside air into the vehicle interior and disposed between a dash panel and a front wind seal that define an engine room and a cowl box part,
A pair of vehicle reinforcement lane force materials, each one end is fixed in the engine room, the other end is fixed in the cowl box part beyond the dash panel,
The one end side portion of each lane force material and the other end side portion of each lane force material are defined by the cowl top cover, and the other end portion of each lane force material is in the cowl box portion. Fixed to the cowl box in
The cowl box portion covers the other end portion of each lane force material from below, and an under cover is formed with a mounting hole for exposing a part of the vehicle body panel to fix the other end portion of each lane force material. And a first cover portion that covers the other end portion of each lane force material from above, and is configured separately from the under cover portion .
A flow path is formed in the cowl top cover to guide outside air taken in from the outside air introduction hole into the vehicle compartment, and shuts off mixing of outside air introduced into the flow path and air in the engine room. A cowl top cover characterized in that a portion is formed on the cowl top cover. The other ends of each lane force material are arranged to intersect in the cowl box part, and the intersecting intersection part is fixed to the cowl box part ,
The cowl top cover according to claim 1, wherein the blocking portion is provided in a peripheral portion of the intersecting portion.   The cowl top cover according to claim 2, wherein the blocking portion is formed at a portion where the lane force material is sandwiched between the first cover portion and the under cover portion.   The cowl top cover according to claim 2, wherein the blocking portion is provided at a contact portion between the first cover portion and the under cover portion. The cowl top cover according to claim 1, wherein the blocking portion is configured as a member that covers and covers the periphery of a flow path that guides outside air taken in from the outside air introduction hole to the vehicle interior.

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