CN107521565B

CN107521565B - Vehicle cowl reinforcing structure

Info

Publication number: CN107521565B
Application number: CN201710358761.8A
Authority: CN
Inventors: 小玉亮太
Original assignee: Suzuki Motor Corp
Current assignee: Suzuki Motor Corp
Priority date: 2016-06-16
Filing date: 2017-05-19
Publication date: 2020-03-27
Anticipated expiration: 2037-05-19
Also published as: JP2017222283A; FR3052736A1; JP6805565B2; DE102017112061A1; FR3052736B1; CN107521565A

Abstract

An object of the present invention is to provide a vehicular cowl reinforcing structure that effectively reinforces a cowl panel using existing components and the like. A vehicle cowl reinforcing structure (100) includes: a dash panel (102); a floor panel (104) that extends from the lower portion of the dash panel (102) toward the rear of the vehicle; and a cowl reinforcement member (106) and a cowl under reinforcement member (108) for mounting a predetermined pedal part (110), the cowl reinforcement member (106) and the cowl under reinforcement member (108) being joined to and spanning the cabin side of the cowl panel (102) and the cabin side of the floor panel (104). Wherein the cowl reinforcing member (106) and the like have a bulging portion (112), the bulging portion (112) bulges toward the vehicle compartment side and forms a closed cross section (E1) continuous from the cowl (102) to the floor (104), and the pedal member (110) is attached to the bulging portion (112).

Description

Vehicle cowl reinforcing structure

Technical Field

The present invention relates to a vehicular cowl reinforcing structure including a cowl panel extending rearward of a vehicle from a lower portion of the cowl panel, a floor panel for mounting a predetermined pedal part, and a reinforcing member engaged with and spanning a cabin side of the cowl panel and a cabin side of the floor panel.

Background

The dash panel for a vehicle is a relatively large-sized wall-shaped member provided to separate an engine compartment side and a vehicle compartment side from each other. Conventionally, in order to prevent noise when the vehicle is running, deformation at the time of vehicle collision, and the like, a predetermined reinforcement countermeasure has been applied to the dash panel. For example, in patent document 1, in order to prevent noise mainly caused by vibration, reinforcement is performed by attaching a member such as a stay to the dash panel.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2004-130976

Disclosure of Invention

Problems to be solved by the invention

In recent vehicles, many components such as motor-related components and sensor-related components are mounted in an engine room together with engine-related components, and the weight of the engine room tends to increase, with the trend toward motorization and automation. Therefore, the load applied to the dash panel from the engine room side also tends to increase, and a stronger reinforcement countermeasure for the dash panel is required. However, a reinforcement countermeasure of newly mounting a separate component such as the stay in the above-described patent document 1 is inefficient in terms of difficulty in securing a mounting space and increase in weight.

In view of the above-described problems, it is an object of the present invention to provide a vehicular cowl reinforcing structure that effectively reinforces a cowl panel using existing components and the like.

Means for solving the problems

In order to solve the above-described problems, a vehicular cowl reinforcing structure according to the present invention having a typical structure is a vehicular cowl reinforcing structure including: a dash panel; a floor panel extending rearward of the vehicle from a lower portion of the dash panel; and a reinforcement member for mounting a predetermined pedal part, the reinforcement member being joined to and spanning a cabin side of the dash panel and a cabin side of the floor panel, wherein the reinforcement member has a bulge portion bulging inward of the cabin and forming a closed cross section continuous from the dash panel to the floor panel, the pedal part being mounted to the bulge portion.

Various pedal components such as an accelerator pedal (accelerator pedal), a brake pedal (brake pedal), and a foot parking brake (foot park brake) are mounted to a cabin side of a general dash panel. These pedal parts are operated by the foot of the driver, and respective loads are applied to the pedal parts, so the pedal parts are mounted to the dash panel using plate-shaped reinforcement members.

In the foregoing construction, the bulging portion is provided to the reinforcement member to which the pedal member has been attached. The bulge portion forms a closed cross section across the dash panel and the floor panel. With this bulging portion, the rigidity between the dash panel and the floor panel is effectively improved, and the ability to receive loads from the engine compartment side of the dash panel and the like can be improved. In particular, the region near the boundary between the dash panel and the floor panel, which may be the starting point of deformation of the dash panel, can be reinforced, and thus when a load is applied from the engine compartment side, the load can be prevented from receding to the occupant side of the dash panel, and the occupant can be effectively protected.

Preferably, the above-described vehicular cowl reinforcing structure further includes a cross member joined to a vehicle front side of the cowl panel, the cross member intersecting the bulging portion as viewed in a vehicle front-rear direction. The dash panel can be more effectively reinforced by providing the cross member.

Preferably, the cross member is provided on a vehicle front side of a center tunnel that extends rearward of the vehicle from a predetermined height of a vehicle width direction center of the dash panel, and the bulging portion is provided in a vicinity of the center tunnel in the vehicle width direction. With these configurations, the load applied to the dash panel can be effectively absorbed.

Preferably, the vehicular cowl reinforcing structure further includes: a side member joined to an end portion in a vehicle width direction of a lower surface of the floor panel and extending in a vehicle front-rear direction, and a floor beam provided to the lower surface of the floor panel and spanning from a position below the center tunnel to the side member, a closed cross section being formed between the floor beam and the floor panel, the floor beam overlapping with the bulging portion when viewed in an up-down direction. As a result of the load also being transmitted through the floor beam, the dash panel can be reinforced more effectively.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide a vehicular cowl reinforcing structure that effectively reinforces a cowl panel using existing components and the like.

Drawings

Fig. 1 is a diagram showing an outline of a vehicular cowl reinforcing structure according to an embodiment of the invention.

Fig. 2 is a view showing the reinforcing structure shown in (b) of fig. 1 viewed from a different direction.

Fig. 3 is a view showing the reinforcing structure shown in (a) of fig. 1 viewed from a different direction.

Fig. 4 is a view of (b) of fig. 2 from a different direction, from which the floor has been omitted.

Fig. 5 is a sectional view of the reinforcing structure shown in (B) of fig. 1 taken along line B-B.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Dimensions, materials, and other specific numerical values described in the present embodiment are merely examples for facilitating understanding of the present invention, and should not be construed as limiting the present invention unless otherwise specified. It should be noted that elements constituting substantially the same function and configuration are denoted by the same reference numerals in the present specification and the drawings, and thus, duplicate explanation is omitted. Also, illustration of elements not directly related to the present invention has been omitted.

Fig. 1 is a diagram showing an outline of a vehicular cowl reinforcing structure (hereinafter referred to as "reinforcing structure 100") according to an embodiment of the invention. Fig. 1 (a) is a view of the reinforcing structure 100 viewed from the rear of the vehicle. Hereinafter, fig. 1 and all other drawings of the present application are shown with an arrow F (forward) and an arrow B (rearward) showing the vehicle front-rear direction, respectively, an arrow R (right) and an arrow L (left) showing the left and right in the vehicle width direction, respectively, and an arrow U (up) and an arrow D (down) showing the vehicle up-down direction, respectively.

The reinforcing structure 100 is formed from components centered about a dash panel 102 and a floor panel 104. The dash panel 102 is a wall-like member that partitions an engine compartment and a vehicle compartment of the vehicle from each other. The floor panel 104 is a member that constitutes a floor of the vehicle and extends from a lower portion of the dash panel 102 toward the rear of the vehicle.

Various devices that allow the driver to manipulate the vehicle are mounted to the dash panel 102, and thus appropriate rigidity is required. For this reason, the dash panel 102 is reinforced by various reinforcing members such as the cowl reinforcing member 106.

Fig. 1 (b) is a perspective view of a region near the cowl reinforcement member 106 shown in fig. 1 (a). In the present embodiment, a cowl reinforcing member 106 provided above the cowl panel 102 and a cowl under reinforcing member 108 provided below the cowl panel 102 are plate-shaped reinforcing members that reinforce the cowl panel 102. The cowl reinforcement member 106 and the cowl under reinforcement member 108 are connected to each other, and the cowl reinforcement member 106 and the cowl under reinforcement member 108 are joined to the cabin side in a region spanning from the cowl 102 to the floor panel 104. The cowl reinforcing member 106 reinforces an area where the steering device and the pedal part are attached to the dash panel 102, in an equal wide range. Note that the reinforcement member need not be provided in such a manner that the cowl reinforcement member 106 and the cowl reinforcement 108 are provided separately, but may be provided as one large integral component, or may be provided further divided into a plurality of components.

Fig. 2 is a view showing the reinforcing structure 100 shown in (b) of fig. 1 viewed from a different direction. Fig. 2 (a) shows the reinforcement structure 100 in fig. 1 (b) as viewed from the left side in the vehicle width direction. The pedal part 110 is mounted to the cowl reinforcing member 106. Generally, if bolt holes or the like are directly formed in the dash panel 102 so as to enable the pedal member 110 to be mounted, there is a fear that noise from the engine room will be transmitted to the vehicle cabin via the bolt holes. In the present embodiment, by mounting the pedal part 110 via the cowl reinforcing member 106, the pedal part 110 can be mounted more rigidly, and noise and the like can be prevented without forming bolt holes and the like in the dash panel 102.

The cowl reinforcement member 106 and the cowl under reinforcement member 108 of the present embodiment have been implemented with measures to effectively reinforce the cowl panel 102 and the floor panel 104. As shown in fig. 2 (a), a bulge portion 112 is provided at a position where the pedal part 110 is mounted, the bulge portion 112 spanning the cowl reinforcing member 106 and the cowl reinforcing member 108.

Referring again to fig. 1 (b), the bulging portion 112 is a portion bulging on the vehicle compartment side. The bulge portion 112 is continuous with the cowl reinforcement member 106 and the cowl under reinforcement member 108, and is provided such that the bulge portion 112 is slightly bent in the vehicle up-down direction until reaching the floor panel 104.

Fig. 2 (b) is a sectional view of the reinforcing structure 100 shown in fig. 1 (b) taken along line a-a. A closed cross section E1 is formed between the bulge portion 112 and the dash panel 102. The closed section E1 is formed so as to be continuous not only with the dash panel 102 but also from the dash panel 102 to the floor panel 104. The bulge portion 112 effectively improves the rigidity between the dash panel 102 and the floor panel 104, and can improve the ability to receive a load from the engine compartment side of the dash panel 102 or the like.

Fig. 3 is a view showing the reinforcing structure 100 shown in (a) of fig. 1 viewed from a different direction. Fig. 3 (a) is a view of the reinforcement structure 100 in fig. 1 (a) from the front of the vehicle. The cowl cross member 114 is joined to the vehicle front side of the dash panel 102 as a cross member extending in the vehicle width direction. The cowl cross member 114 also plays a part in reinforcing the cowl panel 102.

The cowl cross member 114 is combined with the center tunnel 116, and further improves the load absorption performance. The center tunnel 116 is provided at the center of the dash panel 102 in the vehicle width direction. As shown in fig. 1 (b), a center tunnel 116 extends from a predetermined height of the center of the dash panel 102 toward the rear of the vehicle above the floor panel 104.

Fig. 3 (b) is a view of the reinforcement structure 100 in fig. 3 (a) as viewed from the right side of the vehicle rear. Fig. 3 (b) shows the cowl cross member 114 and the center tunnel 116 with the dash panel 102 having been omitted. The cowl cross member 114 is provided on the vehicle front side of the center tunnel 116, and overlaps the center tunnel 116 in the vehicle front-rear direction.

Referring again to fig. 2 (b), a closed section E2 is formed between the cowl cross member 114 and the dash panel 102. The cowl cross member 114 is disposed so as to intersect the bulging portion 112 when viewed in the vehicle front-rear direction. In addition, the bulging portion 112 is provided in the vicinity of the center tunnel 116 in the vehicle width direction.

With the above configuration, the load from the engine compartment side received by the dash panel 102 is first dispersed in the vehicle width direction by the cowl cross member 114. The load is also dispersed in the vehicle up-down direction by the bulge portion 112 intersecting with the cowl cross member 114. Then, the load applied to the cowl cross member 114 and the bulge portion 112 is absorbed to the center tunnel 116.

As described above, the load applied to the dash panel 102 can be effectively dispersed in the reinforcing structure 100, and the occurrence of local concentration of the load, deformation, and the like can be prevented. In particular, the dash panel 102 is effectively reinforced by the following cross structure: the bulging portion 112 and the cowl cross member 114 intersect with each other in the cross structure, and further support the dash panel 102 from the vehicle rear side through the center tunnel 116 in the vicinity of the intersection of the cross structure. For this reason, even if a load is received from the vehicle front at the time of a collision or the like, the dash panel 102 can suppress deformation, and it is difficult for the load to retreat to the occupant side behind the vehicle. In this way, the reinforcement structure 100 can suppress the dash panel 102 from receding to the occupant side, and can ensure the safety of the occupant.

Fig. 4 is a view of (b) of fig. 2 from a different direction, from which the floor panel 104 has been omitted. The bulge 112 is combined with additional components to absorb the load. Fig. 4 (a) is a view showing the reinforcement structure 100 viewed from the vehicle rear side slightly to the right side upward, similarly to fig. 2 (a). The floor beam 118 is provided so as to overlap the bulging portion 112 below the bulging portion 112 in the vehicle. The load on the bulge 112 is also absorbed by the floor beams 118. The floor beam 118 passes over the bulge 112 from below the vehicle of the central tunnel 116 and spans and is joined to the side beam 120.

Fig. 4 (b) is a view showing the reinforcement structure 100 shown in fig. 4 (a) as viewed from below on the vehicle front side. The side members 120 are a pair extending in the vehicle front-rear direction, and are joined to both vehicle width direction end portions of the lower surface of the floor panel 104 (not shown). The floor beam 118 is connected to the side member 120 and extends in the vehicle width direction.

Fig. 5 is a sectional view of the reinforcing structure 100 shown in (B) of fig. 1 taken along line B-B. As shown in fig. 5, a closed section E3 is formed between the floor beam 118 and the floor 104, and the closed section E3 has high rigidity. The bulge portion 112 can further effectively reinforce the dash panel 102 by transmitting and dispersing the load to the floor beam 118 on the vehicle rear side.

As described above, in the reinforcement structure 100, the dash panel 102 can be suppressed from receding to the occupant side. The dash panel 102 extends in the vehicle up-down direction on the vehicle front side, and the lower portion of the dash panel 102 is bent such that the lower portion of the dash panel 102 extends in the horizontal direction as it approaches the vehicle rear side, and the dash panel 102 is connected to the floor panel 104 near the lower end 122. Because the shape in the region near the lower end 122, which is the base portion of the dash panel 102, changes, the load from the front of the vehicle may concentrate thereon, and this may be the starting point of deformation of the dash panel 102. However, if the aforementioned reinforcement structure is employed, since the bulge portion 112 spans the dash panel 102 and the floor panel 104 and also overlaps the floor beam 118 in the vehicle up-down direction, the vicinity of the lower end 122 of the dash panel 102 is effectively reinforced, and the retreat of the dash panel 102 can be further suppressed.

As has been described, the bulge portion 112 of the reinforcement structure 100 is provided to the cowl reinforcement member 106 and the cowl under reinforcement frame 108. The cowl reinforcement 106 and the like are typical examples of a plate-shaped member provided on the vehicle compartment side of the dash panel 102, and the bulge portion 112 may be provided instead of other members. Since various pedal parts such as an accelerator pedal and a brake pedal are mounted to the cabin side of the general dash panel 102, there are many cases where a plate-shaped reinforcement member is used. If the aforementioned reinforcing structure 100 is employed, the reinforcement can be performed by providing the bulging portion 112 using a reinforcing member similar to the existing component, and therefore such reinforcement is effective in preventing an increase in the number of components and securing a new installation space.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it should be understood that the present invention is not limited to the above-described embodiments. It is apparent to those skilled in the art that various modifications and changes can be made within the scope of the invention defined in the claims, and these modifications and changes should be construed as being included in the technical scope of the present invention.

Industrial applicability

The present invention can be used as a vehicular cowl reinforcing structure including a cowl panel extending rearward of a vehicle from a lower portion of the cowl panel, a floor panel for mounting a predetermined pedal part, and a reinforcing member engaged with and spanning a cabin side of the cowl panel and a cabin side of the floor panel.

Description of the reference numerals

E1 … closed cross-section of the bulge; e2 … closed cross section of front wall beam; e3 … closed cross-section of floor beam; 100 … reinforcing structure; 102 … dash panel; 104 … floor board; 106 … cowl reinforcement member; 108 … front under reinforcement members; 110 … pedal member; 112 … bulge; 114 … front wall beam; 116 … central channel; 118 … floor beams; 120 … longitudinal beams; 122 … lower end of dash panel

Claims

1. A vehicular cowl reinforcing structure, comprising:

a dash panel;

a floor panel extending rearward of the vehicle from a lower portion of the dash panel; and

a reinforcement member for mounting a predetermined pedal part, the reinforcement member being joined to and spanning over a cabin side of the dash panel and a cabin side of the floor panel,

the vehicular cowl reinforcing structure is characterized in that the reinforcing member has a bulging portion that bulges into a vehicle cabin and forms a closed cross section continuous from the cowl to the floor, the pedal part is attached to the bulging portion,

the cowl reinforcing structure for a vehicle further includes:

a cross member joined to a vehicle front side of the dash panel, the cross member and the bulging portion intersecting as viewed in a vehicle front-rear direction;

a center tunnel that extends rearward of the vehicle from a predetermined height in a vehicle width direction center of the dash panel;

a side member joined to an end portion in a vehicle width direction of a lower surface of the floor panel and extending in a vehicle front-rear direction; and

a floor beam provided on a lower surface of the floor and spanning from a position below the center tunnel to the side beam, forming a closed cross section between the floor beam and the floor,

the cross member is provided on a vehicle front side of the center tunnel,

the floor beam overlaps with the bulging portion when viewed in the up-down direction.

2. The vehicular cowl reinforcing structure according to claim 1,

the bulging portion is provided in the vicinity of the center tunnel in the vehicle width direction.