JP5640728B2 - Dash panel reinforcement structure - Google Patents

Description

  The present invention relates to a dash panel reinforcing structure for reinforcing a dash panel of a vehicle.

  The dash panel is a plate-like member that partitions the engine room and the vehicle compartment. Normally, an instrument panel that houses meters, air conditioners, and the like is attached to the dash panel, so the dash panel is not visible from the passenger compartment. In addition to the instrument panel, a brake pedal or the like is attached to the dash panel, so high strength and rigidity are required. Therefore, the dash panel is reinforced by various reinforcing members.

  For example, in the front vehicle body structure described in Patent Document 1, the dash panel is reinforced with a dash cross member or a reinforcement for mounting a booster (hereinafter referred to as a pedal bracket reinforcing member). The dash cross member is a long reinforcing member attached to the dash panel over the vehicle width direction. The pedal bracket reinforcing member is a reinforcing member for securing the mounting rigidity of the pedal bracket that supports the brake pedal and the brake booster that amplifies the depression force of the brake pedal.

  In the dash panel of Patent Document 1, the dash cross member is attached to the engine room side, and the pedal bracket reinforcing member is attached to the vicinity of the driver's seat on the indoor side. Further, the pedal bracket reinforcing member is provided with a reinforcing arm portion extending to the dash cross member side, whereby the load can be dispersed over a wide range.

JP 2007-30627 A

  Further, in the above-mentioned Patent Document 1, since the shape of the pedal bracket reinforcing member is not enlarged, it is said that an increase in weight can be suppressed. However, recent vehicles are becoming more and more compact, and a simpler and lighter internal configuration is desired. Even with the front body structure of Patent Document 1, there remains much room for simplification and weight reduction.

  In view of such problems, an object of the present invention is to provide a dash panel reinforcing structure capable of improving the rigidity of a dash panel with a simple and lightweight configuration.

  In order to solve the above problems, a typical configuration of a dash panel reinforcing structure according to the present invention is a dash panel reinforcing structure that reinforces a dash panel of a vehicle. Pedal bracket reinforcing member that is attached to the side and reinforces the mounting part of the pedal bracket, and is long and plate-shaped, in the vehicle width direction until it reaches the pedal bracket reinforcing member from the inside of the dash panel and from the passenger seat side And a cross member that reinforces the dash panel. The cross member has a hat shape whose longitudinal section in the vehicle front-rear direction is convex toward the inside of the vehicle, and the pedal bracket reinforcing member extends in a region extending from the cross member to the vehicle width direction. And a hat-shaped reinforcing portion having a hat-shaped reinforcing portion whose longitudinal section in the longitudinal direction of the vehicle is convex toward the inside of the vehicle. Connected to, and forming a closed cross section continuous to the other end of the vehicle width direction of the end of the dash panel.

  In the above configuration, by providing the hat-type reinforcing portion on the pedal bracket reinforcing member which is an existing member, the pedal bracket reinforcing portion also functions as a cross member (reinforcing member extending in the vehicle width direction). As a result, the conventional cross member has a size corresponding to the length of the dash panel in the vehicle width direction, and the cross member of the present invention is about the length from the passenger seat side of the dash panel to the pedal bracket reinforcing member. It is downsized. Therefore, the overall configuration is simpler than the conventional dash panel reinforcing structure, and the weight is also reduced. Moreover, since the closed cross section formed continuously by the cross member and the pedal bracket reinforcing member is formed in the entire vehicle width direction of the dash panel, it is possible to efficiently improve the strength and rigidity of the dash panel. .

  According to the said structure, it becomes possible to provide the dash panel reinforcement structure which can improve the rigidity of a dash panel with a simple and lightweight structure.

It is a figure which shows the vehicle to which the dash panel reinforcement structure concerning embodiment of this invention is applied. It is a figure which shows the dash panel reinforcement structure of FIG. 1 independently. It is a figure which shows the dash panel structure which attached the pedal bracket. It is each sectional drawing of the dash panel reinforcement structure of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a view showing a vehicle 102 to which a dash panel reinforcing structure 100 according to an embodiment of the present invention is applied. A dash panel 104 shown in FIG. 1 is a partition wall that partitions the engine room and the vehicle compartment of the vehicle 102. The dash panel 104 is installed over the vehicle width direction of the vehicle 102 and is easily subjected to a load or vibration during traveling, so that high strength and rigidity are required. Further, since pedals such as a brake pedal 118 (see FIG. 3) are attached to the dash panel 104, the mounting rigidity of the brake pedal 118 and the like is also required.

  FIG. 2 is a diagram independently showing the dash panel reinforcing structure 100 of FIG. The dash panel reinforcement structure 100 shown in FIG. 2 reinforces the dash panel 104. The dash panel reinforcing structure 100 includes a pedal bracket reinforcing member 106 attached to the driver seat side of the dash panel 104 and a cross member 108 extending from the passenger seat side to the pedal bracket reinforcing member 106 (enclosed by a broken line for convenience). It is comprised including.

  The pedal bracket reinforcing member 106 has a plate shape and is attached to the inside of the dash panel 104 and the driver's seat. The pedal bracket reinforcing member 106 is provided with an attachment portion 110 for attaching a pedal bracket 112 that supports a brake pedal 118 (see FIG. 3). The pedal bracket 112 is a bracket that supports the brake pedal 118, and the pedal bracket reinforcing member 106 reinforces the mounting portion 110 of the pedal bracket 112.

  FIG. 3 is a view showing a dash panel structure to which the pedal bracket 112 is attached. As shown in FIG. 3, the pedal bracket 112 is attached to the attachment portion 110 of the pedal bracket reinforcing member 106 and the pedal bracket hanger 114 above it. As shown in FIG. 3, a booster 120 that amplifies the pedal force of the occupant's brake pedal 118 is attached to the circular hole 116 formed in the center of the attachment portion 110 in FIG. 2.

  Refer to FIG. 2 again. The cross member 108 is long and plate-like, and is attached in the vehicle width direction until it reaches the pedal bracket reinforcing member 106 from the inside of the dash panel 104 and the passenger seat side. Generally, a cross member is a name used for a reinforcing member that intersects (crosses) a predetermined member in the vehicle width direction. The cross member 108 of FIG. 2 is also attached to the dash panel 104 in the vehicle width direction to reinforce it.

  Further, a passenger seat side reinforcing member 122 and a footrest bracket 124 are attached to the dash panel 104. The passenger seat side reinforcing member 122 is a plate-like member, and reinforces the area on the passenger seat side of the dash panel 104. The footrest bracket 124 is used as a table on which the driver places his left leg.

  4 is a cross-sectional view of the dash panel reinforcement structure 100 of FIG. 4A is a cross-sectional view of the cross member 108 in FIG. As shown in FIG. 4A, the cross member 108 has a hat shape in which the longitudinal section in the vehicle front-rear direction is convex toward the inside of the vehicle. With this hat shape, the space between the dash panel 104 is closed, and a closed cross section E1 is formed.

  4B is a BB cross-sectional view of the pedal bracket reinforcing member 106 of FIG. Here, as shown in FIG. 2, a hat-type reinforcing portion 126 is formed in the pedal bracket reinforcing member 106 in a region extending from the cross member 108 to the vehicle width direction. Similar to the cross member 108, the hat-type reinforcing portion 126 is a portion that is provided in the dash panel 104 in the vehicle width direction and reinforces it.

  As shown in FIG. 4B, the hat-type reinforcing portion 126 of the pedal bracket reinforcing member 106 has a hat shape in which the longitudinal section in the vehicle front-rear direction is convex toward the inside of the vehicle. And by this hat shape, the space between the dash panel 104 is closed, and the closed cross section E2 is formed. The hat-shaped reinforcing portion 126 shown in FIG. 2 is connected to the cross member 108 so as to overlap from above, and the closed section E2 in FIG. 4B is continuous from the closed section E1 in FIG. That is, in the dash panel reinforcing structure 100 in FIG. 2, a continuous closed cross section is formed until the dash panel 104 reaches the other end 130 from one end 128 in the vehicle width direction. The closed cross-section continuous in the vehicle width direction has a stable cross-sectional shape, and can exhibit a high resistance to load, bending and torsion in the vehicle front-rear direction. Thereby, the so-called NVH (noise / vibration / harshness) performance of the vehicle 102 (see FIG. 1) can be improved.

  In the above configuration, by providing the hat-type reinforcing portion 126 in the pedal bracket reinforcing member 106 which is an existing member, the pedal bracket reinforcing portion also functions as a cross member (reinforcing member extending in the vehicle width direction). As a result, the conventional cross member 108 has a size corresponding to the length of the dash panel 104 in the vehicle width direction, and the cross member 108 shown in FIG. It is miniaturized to a length up to 106. Therefore, the overall configuration is simpler than the conventional dash panel reinforcing structure, and the weight can be reduced. Further, since the closed cross section formed continuously by the cross member 108 and the pedal bracket reinforcing member 106 is formed in the entire vehicle width direction of the dash panel 104, the strength and rigidity of the dash panel 104 can be improved efficiently. Is possible.

  Further, in the dash panel reinforcing structure 100, since the cross member 108 is provided on the inner side of the vehicle, unlike the engine room side, there is little possibility of touching the outside air. Therefore, generation | occurrence | production of rust can be suppressed. Moreover, since there is little worry about rust, a rust prevention process etc. can be abbreviate | omitted and it can contribute to cost reduction.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention can be used as a dash panel reinforcing structure that reinforces a dash panel of a vehicle.

E1, E2 ... closed cross section, 100 ... dash panel reinforcement structure, 102 ... vehicle, 104 ... dash panel, 106 ... pedal bracket reinforcement member, 108 ... cross member, 110 ... mounting portion, 112 ... pedal bracket, 114 ... pedal bracket hanger , 116 ... hole, 118 ... brake pedal, 120 ... booster, 122 ... passenger seat side reinforcing member, 124 ... footrest bracket, 126 ... hat-type reinforcing part, 128 ... one end, 130 ... other end

Claims (1)

In the dash panel reinforcement structure that reinforces the dash panel of the vehicle,
A pedal bracket reinforcing member that is plate-shaped and is attached to the inside of the dash panel and on the driver's seat side, and reinforces the mounting portion of the pedal bracket;
It is long and plate-shaped, and is attached in the vehicle width direction until reaching the pedal bracket reinforcing member from the vehicle interior side and the passenger seat side of the dash panel, and includes a cross member that reinforces the dash panel,
The cross member has a hat shape in which a longitudinal section in the vehicle front-rear direction is convex toward the inside of the vehicle,
The pedal bracket reinforcing member has a hat-shaped reinforcing portion having a hat shape in which a longitudinal section in the vehicle front-rear direction is convex on the vehicle inner side in a region extending from the cross member in the vehicle width direction,
The hat-type reinforcing portion is connected to the cross member and forms a closed cross section that is continuous from one end to the other end in the vehicle width direction of the dash panel.

Images