vehicle

Abstract

To restrain a pedal main body of a brake pedal from being protruded to the rear side largely.SOLUTION: A vehicle 100 comprises a dash panel 14, an internal combustion engine 20, a brake pedal 50, a booster 60 and a spacer 70. The brake pedal 50 comprises a bracket 51, an arm 52 and a pedal body 53. The bracket 51 is fixed to the dash panel 14. The arm 52 extends from the bracket 51 to the lower side. The arm 52 is supported rotatably relative to the bracket 51. The pedal body 53 is connected to a lower end of the arm 52. A device body 61 of the booster 60 is located between the internal combustion engine 20 and the dash panel 14. In addition, the device body 61 is located in front of the arm 52. The spacer 70 is located between the internal combustion engine 20 and the dash panel 14 and upward when viewed from the device body 61.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle. [Background technology]

[0002] The vehicle of Patent Document 1 includes a dash panel, an internal combustion engine, and a booster. The dash panel separates an engine compartment from a passenger compartment. The internal combustion engine is located in the engine compartment. The booster is located in the engine compartment, between the internal combustion engine and the dash panel. The booster is connected to a brake pedal located in the passenger compartment. The booster amplifies the force input to the brake pedal. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-070092 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a vehicle such as that described in Patent Document 1, the brake pedal is supported rotatably relative to the dash panel. In a frontal collision in which an object collides with such a vehicle from the front, the engine compartment is crushed and the internal combustion engine moves rearward. When the booster in contact with the internal combustion engine moves rearward, the booster pushes the dash panel rearward. At this time, depending on the positional relationship between the booster and the brake pedal, and the positional relationship between the internal combustion engine and the booster, the brake pedal may rotate and protrude into the passenger compartment. [Means for solving the problem]

[0005] A vehicle for solving the above problem includes a dash panel separating an engine room from a passenger compartment, an internal combustion engine located in the engine room, a brake pedal rotatably supported on the dash panel and located in the passenger compartment, and a booster connected to the brake pedal and amplifying a force input from the brake pedal, wherein the brake pedal includes a bracket fixed to the dash panel, an arm rotatably supported on the bracket and extending downward from the bracket, and a pedal body fixed to an end of the arm opposite to the bracket, at least a portion of the booster is located between the internal combustion engine and the dash panel, and when a portion of the booster located between the internal combustion engine and the dash panel is defined as a specific portion, the specific portion is located in front of the arm and is located in the engine room between the internal combustion engine and the dash panel and above the booster as viewed from the booster. and fixed to the dash panel. A spacer is further included.

[0006] According to the above configuration, the spacer in contact with the internal combustion engine moves rearward, and the dash panel is pushed rearward by the spacer. Similarly, the booster in contact with the internal combustion engine moves rearward, and the dash panel is pushed rearward. This causes the entire arm and bracket of the brake pedal to move rearward. Therefore, the arm is prevented from rotating rearward due to being pushed significantly rearward relative to the bracket. If the rotation of the arm can be prevented in this way, the pedal body of the brake pedal can be prevented from protruding significantly rearward.

[0007] In the above configuration, the internal combustion engine comprises an engine body having cylinders, and a chain case fixed to the engine body, the chain case being located forward of the specific portion and the spacer, and the chain case comprising a case body defining an internal space, a front rib protruding from the surface of the case body and extending in a straight line from the front side to the rear side, and a back rib protruding from the back side of the case body and extending in a straight line from the front side to the rear side, and the front rib and the back rib may be located at positions that are plane-symmetrical on either side of the case body.

[0008] According to the above configuration, the axial rigidity of the chain case can be increased. Therefore, the chain case is less likely to be destroyed early in a frontal collision of the vehicle, and the impact cannot be transmitted to the dash panel and the brake pedal as expected. In addition, since the front rib and the rear rib are located at positions that are symmetrical with each other, the total protruding length of the front rib and the rear rib can be increased without increasing the protruding length of each of the front rib and the rear rib from the case body. Therefore, a high reinforcing effect can be obtained without increasing the protruding length of each of the front rib and the rear rib from the case body.

[0009] In the above configuration, when an area of ​​the chain case facing the spacer in the front-rear direction is defined as a first area, and an area facing the specific portion in the front-rear direction is defined as a second area, the front rib and the back rib may be located in the first area.

[0010] The above-mentioned configuration improves the axial rigidity of the first region of the chain case located in front of the spacer, making it easier to transmit impact to a relatively upper position on the brake pedal and more reliably suppressing rotation of the arm caused by the arm being pushed rearward relative to the bracket.

[0011] In the above configuration, when an area of ​​the chain case facing the spacer in the front-to-rear direction is defined as a first area, and an area facing the specific portion in the front-to-rear direction is defined as a second area, the axial rigidity in the front-to-rear direction in the first area may be higher than the axial rigidity in the front-to-rear direction in the second area.

[0012] According to the above configuration, for example, compared to a case where the axial stiffness in the front-rear direction in the first region is the same as the axial stiffness in the front-rear direction in the second region, an impact is more easily transmitted to a relatively upper position on the brake pedal. Therefore, an impact is more easily transmitted to a relatively upper position on the brake pedal, and rotation of the arm caused by the arm being pushed rearward relative to the bracket can be more reliably suppressed.

[0013] In the above configuration, the chain case may have a flat surface that faces the spacer in the front-rear direction. With the above configuration, even if the positional relationship between the chain case and the spacer is slightly shifted during a frontal collision of the vehicle, the flat surface of the chain case is more likely to come into contact with the spacer. If the spacer comes into contact with the flat surface in this manner, it is possible to prevent the impact force from the chain case from being transmitted to the spacer in an unintended direction. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a schematic cross-sectional view of the vehicle viewed from above toward below. [Diagram 2] FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. [Diagram 3] FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. [Figure 4] FIG. 13 is an explanatory diagram showing a state in which a frontal collision occurs. [Diagram 5] FIG. 11 is an explanatory diagram showing a state at the time of a frontal collision according to a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] <Vehicle Overview> An embodiment of the present invention will be described below with reference to Figures 1 to 5. In the following description, the front-rear, left-right, and up-down directions refer to directions seen from a driver seated in the driver's seat of vehicle 100.

[0016] As shown in FIG. 1, the vehicle 100 includes a front panel 11, a left side panel 12, a right side panel 13, and a dash panel 14. The front panel 11, the left side panel 12, and the right side panel 13, together with a bonnet and an undercover (not shown), define the interior space of the vehicle 100. The front panel 11, the left side panel 12, and the right side panel 13 are fixed to a frame member (not shown) of the vehicle 100. The front panel 11 constitutes the front wall of the vehicle 100. The left side panel 12 constitutes the left wall of the vehicle 100. The right side panel 13 constitutes the right wall of the vehicle 100. Note that FIG. 1 shows a simplified configuration of each part.

[0017] Dash panel 14 is located at a distance rearward from front panel 11. Dash panel 14 is fixed to a frame member of vehicle 100 (not shown). One of two main surfaces of dash panel 14 faces forward, and the other faces rearward. Thus, dash panel 14 divides the interior space of vehicle 100 into an engine room X and a passenger compartment Y. Engine room X is a space located forward as viewed from dash panel 14. Passenger compartment Y is a space located rearward as viewed from dash panel 14. The main surface refers to the surface with the largest area among the outer surfaces.

[0018] As shown in Fig. 1 and Fig. 2, the vehicle 100 includes an internal combustion engine 20, a brake pedal 50, a booster 60, and a steering wheel 80. As shown in Fig. 1, when the internal combustion engine 20 is viewed downward from above the vehicle 100, the internal combustion engine 20 is located approximately in the center of an engine room X. The internal combustion engine 20 includes an engine body 30 and a chain case 40. The left-right center of the engine body 30 is located slightly to the left when viewed from the left-right center of the engine room X. The engine body 30 is generally shaped like a rectangular prism. The engine body 30 includes four cylinders 31 as spaces in which fuel is burned. The four cylinders 31 are aligned left-right.

[0019] 1, the chain case 40 is fixed to the right wall of the engine body 30. Therefore, the chain case 40 is located to the right when viewed from the left-right center in the engine room X. The specific configuration of the chain case 40 will be described later.

[0020] As shown in Fig. 1, the brake pedal 50 is located at the frontmost part of the vehicle interior Y. Also, as shown in Fig. 2, the brake pedal 50 is located at the rear of the chain case 40. In other words, the brake pedal 50 is located at the right side of the vehicle interior Y when viewed from the center of the vehicle interior Y.

[0021] As shown in FIG. 2, the brake pedal 50 includes a bracket 51, an arm 52, and a pedal body 53. The bracket 51 is fixed to the rear surface of the dash panel 14. The bracket 51 protrudes rearward from the dash panel 14. The arm 52 is generally curved and rod-shaped. A first end of the arm 52 is connected to the vicinity of the rear end of the bracket 51. The arm 52 extends downward from the vicinity of the rear end of the bracket 51. The arm 52 is curved so that the lower side of the arm 52 is located further rearward. The arm 52 is supported so as to be rotatable relative to the bracket 51 around the connecting portion with the bracket 51. The pedal body 53 is fixed to a second end of the arm 52. That is, the pedal body 53 is fixed to the end of the arm 52 opposite to the bracket 51. The pedal body 53 is generally rectangular plate-shaped.

[0022] As shown in FIG. 2, the booster 60 includes a device body 61 and a rod 62. The device body 61 is fixed to the front of the dash panel 14. The entire device body 61 is located between the chain case 40 and the dash panel 14 in the engine room X. That is, in this embodiment, the entire device body 61 is the specific portion. The device body 61 is located in front of the arm 52. Specifically, the device body 61 is located slightly above the center of the arm 52 and below the connecting portion of the arm 52 and the bracket 51. Although the illustration is simplified in FIG. 2, the device body 61 is, for example, a brake booster, a master cylinder, a pump, or the like. A first end of the rod 62 is located inside the device body 61. A portion of the rod 62 including the second end protrudes rearward from the device body 61. The second end of the rod 62 is connected to a portion located slightly above the center of the arm 52 from above and below the connecting portion of the arm 52 and the bracket 51 .

[0023] The rod 62 transmits the rotational motion of the arm 52 to the device body 61. Specifically, when the driver of the vehicle 100 depresses the pedal body 53 of the brake pedal 50, the arm 52 rotates counterclockwise in FIG. 2 around the connecting portion with the bracket 51. Then, the rod 62 moves forward, and the force from the brake pedal 50 is input to the device body 61. The device body 61 amplifies the force input from the brake pedal 50 and transmits it to a brake device (not shown). As a result, the brake device operates to generate a braking force for the vehicle 100. An example of the brake device is a disc brake device.

[0024] 1, the steering wheel 80 is located rearward of the brake pedal 50 in the vehicle interior Y. In other words, the steering wheel 80 is located to the right of the vehicle interior Y when viewed from the center of the vehicle interior Y.

[0025] <Booster peripheral configuration> As shown in FIG. 2, the vehicle 100 is provided with a spacer 70. The spacer 70 is located between the chain case 40 and the dash panel 14 in the engine room X. The spacer 70 is located above when viewed from the device main body 61. The spacer 70 is also located forward of the connection portion between the arm 52 and the bracket 51. The spacer 70 is fixed to the front surface of the dash panel 14. The spacer 70 has an overall rectangular prism shape. A front surface 71 of the spacer 70 is slightly inclined so that the lower the surface, the further forward the surface.

[0026] The chain case 40 includes a case body 41. The case body 41 is shaped like a box that is open on the left side. That is, the case body 41 defines an internal space 41Z. The dimension of the case body 41 in the direction along the top-bottom of the vehicle 100 is greater than the dimension of the case body 41 in the direction along the front-rear of the vehicle 100. The case body 41 accommodates a chain, multiple sprockets, etc. (not shown) in the internal space 41Z.

[0027] The case body 41 includes a crank through hole 42, an intake through hole 43, an exhaust through hole 44, and a raised portion 45. The crank through hole 42 penetrates the case body 41 from left to right. The crank through hole 42 is located near the lower end of the case body 41. The position of the crank through hole 42 corresponds to the position of a crank sprocket connected to a crankshaft (not shown). The intake through hole 43 penetrates the case body 41 from left to right. The intake through hole 43 is located near the upper end of the case body 41 and near the front end. The position of the intake through hole 43 corresponds to the position of an intake sprocket connected to an intake camshaft (not shown). The exhaust through hole 44 penetrates the case body 41 from left to right. The exhaust through hole 44 is located near the upper end of the case body 41 and near the rear end. The position of exhaust through-hole 44 corresponds to the position of an exhaust sprocket that is connected to an exhaust camshaft (not shown). Raised portion 45 rises to the right relative to other portions. Raised portion 45 surrounds exhaust through-hole 44. Therefore, as shown in Figure 2, when looking at chain case 40 from the right to the left of vehicle 100, raised portion 45 has a substantially annular shape.

[0028] As shown in Fig. 2, a portion of the chain case 40 is located in front of the device body 61 and the spacer 70. Here, the region of the chain case 40 facing the spacer 70 in the front-rear direction is referred to as a first region 40A, and the region of the chain case 40 facing the device body 61 in the front-rear direction is referred to as a second region 40B. The first region 40A is a region that includes the intake through-holes 43, the exhaust through-holes 44, and the raised portion 45. The second region 40B is a region adjacent to and below the first region 40A.

[0029] Of the rear end surface of the case body 41, the surface located in the first region 40A is defined as the opposing surface 41A. The opposing surface 41A is a flat plane. That is, the opposing surface 41A is a plane that faces the spacer 70 in the front-rear direction. In this embodiment, the opposing surface 41A is slightly inclined so that the lower the opposing surface 41A, the more forward the surface is positioned, and is approximately parallel to the front surface 71 of the spacer 70. In the front-rear direction of the vehicle 100, the shortest distance from the opposing surface 41A to the spacer 70 is smaller than the shortest distance from the rear end surface of the case body 41 located in the second region 40B to the device body 61.

[0030] As shown in FIG. 3, the chain case 40 includes a plurality of front ribs 46 and a plurality of back ribs 47. The front rib 46 protrudes from the right surface of the case body 41. The right surface of the case body 41 is the surface on the near side of the paper in FIG. 2 and the surface on the left side in FIG. 3. As shown in FIG. 2, the front rib 46 extends linearly from the front to the rear of the vehicle 100. The front rib 46 extends from the raised portion 45 to the rear end of the case body 41. In this embodiment, the chain case 40 includes two front ribs 46. The two front ribs 46 extend parallel to each other. The two front ribs 46 are located in the first region 40A. In this embodiment, the right surface of the case body 41 is located outside the internal space 41Z of the case body 41, and is therefore the front surface of the case body 41.

[0031] As shown in FIG. 3, the rear rib 47 protrudes from the left side of the case body 41. The left side of the case body 41 is the side at the back of the paper in FIG. 2 and the right side in FIG. 3. Specifically, the rear rib 47 is located on the opposite side of the case body 41 to the front rib 46. That is, the front rib 46 and the rear rib 47 are located at positions symmetrical with respect to the case body 41. The rear rib 47 extends linearly from the front to the rear of the vehicle 100. The rear rib 47 extends from the raised portion 45 to the rear end of the case body 41. In this embodiment, the chain case 40 includes two rear ribs 47 corresponding to the two front ribs 46. The two rear ribs 47 extend parallel to each other. The two rear ribs 47 are located in the first region 40A. In this embodiment, the left side of the case body 41 is the rear surface of the case body 41.

[0032] In this embodiment, the front rib 46 and the rear rib 47 are located in the first region 40A, while the front rib 46 and the rear rib 47 are not located in the second region 40B. Therefore, the axial rigidity in the front-rear direction in the first region 40A of the chain case 40 is higher than the axial rigidity in the front-rear direction in the second region 40B of the chain case 40.

[0033] <Action of this embodiment> 4, in the case of a frontal collision in which an object collides with the vehicle 100 from the front, the engine compartment X is crushed and the internal combustion engine 20 moves rearward. Then, the device body 61 and the spacer 70 of the booster 60, which are in contact with the chain case 40 of the internal combustion engine 20, move rearward.

[0034] <Effects of this embodiment> (1) As shown in FIG. 5, suppose that the vehicle 100 does not include the spacer 70. In this case, when the vehicle 100 is hit from the front, the second region 40B of the chain case 40 first comes into contact with the device body 61. Then, only the vicinity of the device body 61 of the dash panel 14 is pushed rearward. Then, the amount of rearward movement of the arm 52 becomes greater than the amount of rearward movement of the bracket 51. Then, as shown by the dash-dotted arrow in FIG. 5, the arm 52 rotates in the clockwise direction in FIG. 5 about the connection portion with the bracket 51. As a result, the amount of rearward movement of the pedal body 53 of the brake pedal 50 becomes greater, that is, the pedal body 53 protrudes significantly rearward.

[0035] As shown in Fig. 4, in this embodiment, the vehicle 100 is provided with a spacer 70. Therefore, in the event of a frontal collision of the vehicle 100, the dash panel 14 near the spacer 70 is also pushed rearward. Therefore, the bracket 51 and the arm 52 move rearward as a whole. If the rearward movements of the arm 52 and the bracket 51 are approximately the same, the rotation of the arm 52 about the joint with the bracket 51 is suppressed compared to the arm 52 of the comparative example shown by the two-dot chain line in Fig. 4. As a result, the pedal body 53 can be suppressed from protruding significantly rearward.

[0036] (2) Since the chain case 40 has the internal space 41Z, the axial rigidity is lower than that of the engine body 30. Therefore, in the event of a front collision of the vehicle 100, the chain case 40 may be destroyed early and may not transmit the impact to the dash panel 14 and the brake pedal 50 as expected. In this regard, in the present embodiment, the chain case 40 has a front rib 46 and a back rib 47. Therefore, in the event of a front collision of the vehicle 100, the impact can be transmitted to the dash panel 14 and the brake pedal 50 via the chain case 40 as expected.

[0037] (3) In the above embodiment, the front rib 46 and the rear rib 47 are located at positions that are symmetrical with respect to each other. Therefore, it is not necessary to increase the protruding length of each of the front rib 46 and the rear rib 47 from the case body 41. If the protruding length of the front rib 46 and the rear rib 47 can be shortened, there is no need to perform steep processing when molding the chain case 40, which contributes to simplifying the manufacturing process and improving the yield. On the other hand, the total protruding length of the front rib 46 and the rear rib 47 can be increased, which provides a high reinforcing effect.

[0038] (4) In this embodiment, the front rib 46 and the back rib 47 are located in the first region 40A of the chain case 40, which faces the spacer 70 in the front-rear direction. This improves the axial rigidity of the first region 40A of the chain case 40, which is located in front of the spacer 70 and is likely to come into contact with the spacer 70. If the axial rigidity of the first region 40A of the chain case 40 can be improved, an impact can be easily transmitted to a relatively upper position on the brake pedal 50. This makes it possible to more reliably suppress rotation of the arm 52 caused by the arm 52 moving rearward relative to the bracket 51.

[0039] (5) In this embodiment, the axial rigidity in the front-rear direction in the first region 40A of the chain case 40 is higher than the axial rigidity in the front-rear direction in the second region 40B of the chain case 40. As a result, an impact is more likely to be transmitted to a relatively upper position on the brake pedal 50 than when, for example, the axial rigidity in the front-rear direction in the first region 40A of the chain case 40 is the same as that in the second region 40B. As a result, rotation of the arm 52 caused by the arm 52 moving rearward relative to the bracket 51 can be more reliably suppressed.

[0040] (6) In this embodiment, the chain case 40 has an opposing surface 41A that is a flat surface that faces the spacer 70 in the front-to-rear direction. This increases the likelihood that the opposing surface 41A of the chain case 40 will come into contact with the spacer 70 even if the positional relationship between the chain case 40 and the spacer 70 shifts slightly during a frontal collision of the vehicle 100. If the spacer 70 comes into contact with the opposing surface 41A, which is a flat surface, it is possible to prevent the impact force from the chain case 40 from being transmitted to the spacer 70 in an unintended direction.

[0041] (7) In this embodiment, the opposing surface 41A of the chain case 40 is approximately parallel to the front surface 71 of the spacer 70. This increases the likelihood that the chain case 40 and the spacer 70 will come into surface contact with each other. As a result, it also increases the likelihood that energy from the chain case 40 can be transmitted to the spacer 70 as expected.

[0042] <Example of change> This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction.

[0043] In the above embodiment, the shape of the case body 41 of the chain case 40 may be changed. For example, the opposing surface 41A of the case body 41 does not have to be substantially parallel to the front surface 71 of the spacer 70. Also, for example, the opposing surface 41A of the case body 41 may be a curved surface.

[0044] In the above embodiment, the front rib 46 and the rear rib 47 of the chain case 40 do not have to extend in the front-rear direction. For example, the front rib 46 and the rear rib 47 may be inclined with respect to the front and rear of the vehicle 100. Even in this case, the front rib 46 and the rear rib 47 can be said to extend from the front side to the rear side of the vehicle 100.

[0045] In the above embodiment, the front rib 46 and the rear rib 47 of the chain case 40 do not have to extend in a straight line. The front rib 46 and the rear rib 47 may be entirely or partially arc-shaped, or may be bent halfway.

[0046] In the above embodiment, the positions of the front rib 46 and the rear rib 47 in the chain case 40 may be changed. For example, the front rib 46 and the rear rib 47 may be located in the second region 40B instead of or in addition to the first region 40A. Even in this configuration, it is preferable that the axial stiffness in the front-rear direction in the first region 40A of the chain case 40 is higher than the axial stiffness in the front-rear direction in the second region 40B of the chain case 40.

[0047] In the above embodiment, the number of front ribs 46 and rear ribs 47 in the chain case 40 may be changed. As a specific example, the number of front ribs 46 may be one, or three or more. Similarly, the number of rear ribs 47 may be one, or three or more.

[0048] In the above embodiment, the front ribs 46 and the back ribs 47 of the chain case 40 may be omitted. Even in this configuration, there is no problem as long as the axial rigidity in the front-to-rear direction in the first region 40A of the chain case 40 is higher than the axial rigidity in the front-to-rear direction in the second region 40B of the chain case 40.

[0049] In the above embodiment, the axial rigidity in the front-to-rear direction in the first region 40A of the chain case 40 may be lower than the axial rigidity in the front-to-rear direction in the second region 40B of the chain case 40. For example, if the axial rigidity in the front-to-rear direction in the first region 40A of the chain case 40 is ensured to be equal to or greater than a certain value, the spacer 70 can be moved rearward by contact between the chain case 40 and the spacer 70.

[0050] In the above embodiment, the configuration of the internal combustion engine 20 may be changed. As a specific example, the chain case 40 may be fixed to the left wall of the engine body 30. In this case, for example, the device body 61 and the spacer 70 of the booster 60 may be located between the engine body 30 and the dash panel 14. Also, for example, the device body 61 and the spacer 70 of the booster 60 may be located on the left side of the engine room X, and thus may be located between the chain case 40 and the dash panel 14. In other words, the present technology may also be applied to a configuration in which the brake pedal 50 is located on the left side of the vehicle interior Y when viewed from the center of the left and right.

[0051] In the above embodiment, the specific part of the booster 60 may be changed. For example, only a part of the device body 61 may be located between the chain case 40 and the dash panel 14 in the engine room X. In this case, the part of the device body 61 is the specific part.

[0052] In the above embodiment, the shape of the spacer 70 may be changed. Specifically, the shape of the spacer 70 may be changed to match the shapes of the chain case 40 and the device body 61 of the booster 60, etc. [Explanation of symbols]

[0053] X: Engine room Y…Car interior 11…Front panel 12…Left side panel 13…Right side panel 14…Dash panel 20…Internal combustion engine 30…Main body of the engine 31…Cylinder 40…Chain case 40A…1st area 40B…Second area 41…Case body 41A…Opposite surface 41Z…interior space 46…Front rib 47…Ribbed back 50…Brake pedal 51…Bracket 52…Arm 53…Pedal body 60...Boosting device 61...Device body 62…Rod 70…Spacer 71...Front 80…Steering wheel 100…Vehicle

Claims

1. A dash panel that separates the engine room and the passenger compartment; an internal combustion engine located in the engine compartment; a brake pedal rotatably supported with respect to the dash panel and positioned in the vehicle interior; a brake booster connected to the brake pedal and amplifying a force input from the brake pedal; A vehicle comprising: The brake pedal A bracket fixed to the dash panel; an arm rotatably supported relative to the bracket and extending downward from the bracket; a pedal body fixed to an end of the arm opposite to the bracket, At least a portion of the booster is located between the internal combustion engine and the dash panel, when a portion of the booster that is located between the internal combustion engine and the dash panel is defined as a specific portion, the specific portion is located in front of the arm, The engine compartment further includes a spacer that is located between the internal combustion engine and the dash panel and above the booster and is fixed to the dash panel. vehicle.

2. The internal combustion engine includes: An engine body having a cylinder; A chain case fixed to the engine body, The chain case is located in front of the specific portion and the spacer, The chain case is A case body that divides an internal space; a front rib protruding from a surface of the case body and extending linearly from the front side to the rear side; A back rib protruding from the back surface of the case body and extending linearly from the front side to the rear side, The front rib and the back rib are located at positions symmetrical with respect to the plane of the case body.

2. The vehicle of claim 1.

3. When a region of the chain case facing the spacer in the front-rear direction is defined as a first region, and a region of the chain case facing the specific portion in the front-rear direction is defined as a second region, The front rib and the back rib are located in the first region.

3. A vehicle as claimed in claim 2.

4. When a region of the chain case facing the spacer in the front-rear direction is defined as a first region, and a region of the chain case facing the specific portion in the front-rear direction is defined as a second region, The axial stiffness in the front-rear direction in the first region is higher than the axial stiffness in the front-rear direction in the second region. A vehicle according to claim 2 or claim 3.

5. The chain case has a flat surface facing the spacer in the front-rear direction. A vehicle according to any one of claims 2 to 4.

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