JP2006188116A - Brake master cylinder mounting structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent water, noises, and the like from entering a compartment, and protect a brake master cylinder from outside environments in a brake master cylinder mounting structure of a vehicle with a simple constitution. <P>SOLUTION: This brake master cylinder 21 is arranged on the compartment 6 side of a body 2 having a dash panel 3 and a floor panel 4. Therefore, an entire connection body 30 of the brake master cylinder 21 and a brake pedal 22 connected to it can be arranged on the compartment 6 side, so that there is no need for penetrating the brake pedal 22 through the dash panel 3 unlike the conventional one. Further, the brake master cylinder 21 is protected from the outside environments by the dash panel 3 and the floor panel 4. Accordingly, water, noises, and the like can be prevented from entering the inside of the compartment 6, and the brake master cylinder 21 can be protected from the outside environments with a simple constitution. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a brake master cylinder mounting structure for a vehicle such as a passenger car.

Conventionally, in a vehicle such as a passenger car, there is a structure in which a brake master cylinder connected to a brake pedal is disposed below a floor panel of a body (see, for example, Patent Document 1). In this structure, the brake pedal and the brake master cylinder are connected by arranging the brake pedal so as to penetrate the floor panel.
JP 2002-362423 A (page 3-4, FIG. 2)

  However, in this structure, the brake pedal has a structure that penetrates the floor panel. Therefore, the penetration of water and noise from the penetration part into the vehicle interior and the brake master cylinder exposed to the outside are prevented. In order to prevent collisions between flying stones and road bumps, it is necessary to provide a dedicated guard member. For this reason, there exists a problem that the number of parts of a vehicle increases.

  An object of the present invention is to realize prevention of intrusion of water, noise and the like into a vehicle interior and protection of the brake master cylinder with a simple configuration in a brake master cylinder mounting structure of a vehicle.

  The main feature of the present invention is that a brake master cylinder is disposed on the vehicle body side of the body.

  The main feature of the present invention is that the brake master cylinder is protected from the environment outside the vehicle by the dash panel and the floor panel.

  According to the present invention, the entire connecting body of the brake master cylinder and the brake pedal connected to the brake master cylinder can be disposed on the vehicle body side of the body. Therefore, in the mounting structure of the brake master cylinder, there is no need to provide a structure for preventing water and noise from entering the interior of the vehicle interior separately from the dash panel and floor panel. A structure for preventing intrusion of noise or the like can be simplified. In addition, since the brake master cylinder is protected from the external environment by the dash panel and the floor panel, it is possible to prevent the brake master cylinder from directly hitting the stepping stone or the road protrusion with a simple structure.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a part of a vehicle having a brake master cylinder mounting structure for a vehicle according to the present embodiment, FIG. 2 is a perspective view showing a vehicle in which some members are omitted from FIG. Fig. 4 is a longitudinal sectional side view thereof, and Fig. 4 is a cross-sectional view of the rear surface partly omitted.

  As shown in FIGS. 1 to 3, the body 2 of the vehicle 1 includes a dash panel 3 and a floor panel 4. The dash panel 3 separates the compartment room 5 and the vehicle compartment 6 of the front compartment. The dash panel 3 includes a vertical wall portion 3a and a toe board portion 3b that is inclined forward following the lower end thereof, and a rear end portion of the toe board portion 3b is coupled to a front end portion of the floor panel 4 by welding or the like. .

  A floor tunnel portion 7 having a shape projecting upward and opening downward is provided at the center in the vehicle width direction of the floor panel 4. On the upper surface side of the floor panel 4, two front and rear cross members 8 and 9 extending in the vehicle width direction are provided. A driver's seat 10 is fixed to these two cross members 8 and 9 across them.

  An upper portion of the floor panel 4 is covered with a carpet 11. A sound insulating material attached to the carpet 11 is provided between the floor panel 4 and the carpet 11. The sound insulating material has a function of insulating road noise.

  2 to 4, the body 2 includes a pair of left and right side members 13 that extend from the front portion of the vehicle 1 to the rear of the vehicle 1. These side members 13 are bent toward the lower rear at the portion that hits the front surface of the dash panel 3 and extend rearward along the lower surface of the floor panel 4. Specifically, the side member 13 is formed in a rectangular closed cross section, and a part of the side member 13 is provided in the floor panel 4 so as to be recessed downward. The side member 13 is joined to the dash panel 3 and the floor panel 4 by welding or the like.

  In addition, a pair of left and right submembers 14 positioned between the left and right side members 13 are provided on the lower surface of the floor panel 4. These sub members 14 are joined to the floor panel 4 by welding or the like.

  A brake master cylinder 21 located on the side of the vehicle compartment 6 of the body 2 and below the carpet 11 and a brake pedal 22 connected to the brake master cylinder 21 are attached to the body 2 via a brake bracket 23. Yes. The brake master cylinder 21 is located behind the brake pedal 22. The brake master cylinder 21 and the brake pedal 22 constitute a connecting body 30. Below, the mounting structure 24 of the brake master cylinder 21 and the brake pedal 22 as a brake master cylinder mounting structure of the vehicle 1 will be described in detail.

  Between the side member 13 and the sub member 14 on the driver's seat 10 side of the floor panel 4, a concave portion 25 recessed downward is formed to extend in the front-rear direction of the vehicle 1. The toe board portion 3b of the dash panel 3 connected to the front end of the recess 25 is formed with a recess 26 that is recessed forward and downward. The lower ends 25a and 26a of the recesses 25 and 26 are preferably located at the same position as or higher than the position of the lower end 13a of the side member 13. In the figure, an example is shown in which the lower ends 25 a and 26 a of the recesses 25 and 26 are located above the lower end 13 a of the side member 13. These recesses 25 and 26 receive the arrangement of the brake master cylinder 21 and the brake pedal 22 inside.

  The brake master cylinder 21 and the brake pedal 22 are arranged behind the dash panel 3 and on the passenger compartment side of the floor panel 4. Specifically, it is disposed between the dash panel 3 and the driver's seat 10, a part of the brake master cylinder 21 is located inside the recess 25, and a part of the brake pedal 22 is the recess 25. , 26 are located inside. A brake master cylinder 21 and a brake pedal 22 are attached to a brake bracket 23 attached to the inside of the bottom wall of the recess 25. This attachment is performed by fastening with bolts and nuts, for example.

  The brake master cylinder 21 is attached to the brake bracket 23 so as to be inclined rearward and upward.

  The brake pedal 22 includes a pedal arm 22a and a pedal pad 22b provided at the upper end thereof. In the pedal arm 22a, the lower end portion is connected to the front end portion of the master rod 21a of the brake master cylinder 21, and the portion closer to the pedal pad 22b than the connecting position rotates to the bearing portion of the brake bracket 23 via the brake rod 16. It is supported freely. The pedal arm 22a extends upward through the opening 11a of the carpet 11 (see FIG. 1). As a result, the pedal pad 22b is exposed and an operation on the brake pedal 22 is possible.

  Further, a cover 27 that covers the brake master cylinder 21 from above is attached to the floor panel 4. This cover 27 protects the upper part of the brake master cylinder 21 from the in-vehicle environment such as being stepped on by a driver.

  As described above, in the present embodiment, the brake master cylinder 21 and the brake connected to the brake master cylinder 21 are arranged by disposing the brake master cylinder 21 on the vehicle compartment 6 side of the body 2 having the dash panel 3 and the floor panel 4. The entire connecting body 30 with the pedal 22 can be disposed on the side of the vehicle compartment 6 of the body 2. Therefore, since it is not necessary to penetrate the dash panel as in the prior art in order to connect the brake pedal 22 to the brake master cylinder 21, in the mounting structure 24 of the brake master cylinder 21, water, noise, etc. to the inside of the passenger compartment 6 It is not necessary to provide a structure for preventing the intrusion of water separately from the dash panel 3 and the floor panel 4. Therefore, it is possible to simplify the structure for preventing water, noise, and the like from entering the interior of the vehicle compartment 6. Moreover, since the brake master cylinder 21 is protected from the external environment by the dash panel 3 and the floor panel 4, it is possible to prevent the stepping stones, protrusions on the road, and the like from colliding with the brake master cylinder 21 and water. be able to.

  Moreover, in this Embodiment, the structure which arrange | positions the brake master cylinder 21 to the compartment 6 side of the body 2 can be easily implement | achieved by arrange | positioning the brake master cylinder 21 to the compartment 6 side of the floor panel 4. it can.

  Further, in the present embodiment, the vehicle is provided with a recess 25 that is recessed downward in the floor panel 4 and in which at least a part of the brake master cylinder 21 is disposed. The capacity of the chamber 6 can be increased. This also makes it possible to flatten the carpet 11 at the driver's feet, and does not give the driver a sense of incongruity.

  Further, in the present embodiment, the lower end positions of the recesses 25 and 26 are the same as or higher than the lower end 13a position of the side member 13 provided in the floor panel 4 so as to be recessed downward. When the bottom of 1 interferes with the road surface, at least the side member 13 first interferes with the road surface, so that the deformation of the floor panel 4 and the damage to the brake system including the brake master cylinder 21 and the brake pedal 22 due to this deformation are reduced. can do.

  Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those of the above-described embodiment are denoted by the same reference numerals and description thereof is also omitted.

  FIG. 5 is a perspective view showing a part of the vehicle 1 including the vehicle brake master cylinder mounting structure of the present embodiment. As shown in FIG. 5, in the mounting structure 50 of the brake master cylinder 21 and the brake pedal 22 as the brake master cylinder mounting structure of the vehicle 1 of the present embodiment, the brake master cylinder 21 is disposed below the driver seat 10. ing. Accordingly, the brake pedal 51 is connected to the brake master cylinder 21 via the tension rod 52 and the link member 53. The front end portion of the tension rod 52 is rotatably connected to the end portion of the brake pedal 22 opposite to the pedal pad 22b, and the rear end portion of the tension rod 52 is rotatably connected to one end of the link member 53. Yes. The other end side of the link member 53 is connected to the front end portion of the master rod 21 a of the brake master cylinder 21. The link member 53 is rotatably supported by a bearing portion of the brake bracket 55 via a rod 54. The brake bracket 55 is formed longer toward the rear than the brake bracket 23 of the first embodiment.

  Further, the recess 56 extends to the lower side of the driver seat 10. The brake pedal 22, the tension rod 52, the link member 53, and a part of the brake master cylinder 21 are located in the recesses 56 and 26.

  As described above, in the present embodiment, the brake master cylinder 21 is disposed below the driver seat 10 so that the space below the driver seat 10 can be used effectively.

  The present invention has been described by taking the first and second embodiments as examples. However, the present invention is not limited to these embodiments, and various other embodiments can be adopted without departing from the gist of the present invention. Can do.

It is a perspective view showing a part of vehicles provided with the brake master cylinder mounting structure of vehicles of a 1st embodiment of the present invention. It is a perspective view which shows the vehicle which abbreviate | omitted one part member with respect to FIG. It is the vertical side view. It is sectional drawing which abbreviate | omits and partially shows the back surface. It is a perspective view which shows a part of vehicle provided with the brake master cylinder mounting structure of the vehicle of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Body 3 Dash panel 4 Floor panel 10 Driver's seat 13 Side member 13a Lower end of side member 21 Brake master cylinder 24 Vehicle brake master cylinder mounting structure 25 Recess 25a Lower end of recess 50 Vehicle brake master cylinder mounting structure 56 Recess

Claims (6)

  A brake master cylinder mounting structure for a vehicle, wherein a brake master cylinder is disposed on a vehicle compartment side of a body having a dash panel and a floor panel.   Brake master cylinder mounting structure for a vehicle, wherein the brake master cylinder is protected from the outside environment by a dash panel and a floor panel constituting the body.   3. The brake master cylinder mounting structure for a vehicle according to claim 1 or 2, wherein the brake master cylinder is disposed on a passenger compartment side of the floor panel.   4. The brake master cylinder mounting structure for a vehicle according to claim 3, wherein the brake master cylinder is disposed below a driver seat.   5. The brake master cylinder mounting structure for a vehicle according to claim 3, further comprising a recess provided in the floor panel so as to be recessed downward and having at least a part of the brake master cylinder disposed therein.   6. The brake master of a vehicle according to claim 5, wherein a lower end position of the concave portion is the same as or higher than a lower end position of a side member provided to be recessed downward in the floor panel. Cylinder mounting structure.

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