JP2010221783A - Pedestrian protection device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently arrange a lift cylinder 45 in a vehicle A equipped with a pedestrian protection device 100 that protects a pedestrian by lifting a rear end of a hood 10 by the lift cylinder 45 without affecting an arrangement of on-vehicle parts accommodated in an engine room 3 or in a wheel house on a side of the engine room even when it is difficult to secure a space in a cross direction of the vehicle in the engine room 3. <P>SOLUTION: A cowl box 26 is arranged on a cabin side of a dash panel 18 parting the engine room 3 from the cabin 1 so that the lift cylinder 45 is accommodated in the cowl box. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention belongs to a technical field related to a pedestrian protection device for a vehicle provided with an actuator that flips the rear end of an engine hood upward when a pedestrian collides with the front of the vehicle.

  Conventionally, as a pedestrian protection device for vehicles, when a collision with a pedestrian is detected, the rear end of the engine hood that covers the upper part of the engine room is flipped upward by an actuator, so that two pedestrians are placed on the upper surface of the hood. The thing which eased the impact at the time of the next collision and protected a pedestrian is known (refer patent document 1).

In this pedestrian protection device, an actuator is accommodated in a cowl box disposed along an upper portion of a dash panel that partitions the engine room and the vehicle compartment, and the actuator is disposed on the vehicle front side of the cowl box. It is attached and fixed to the inner wall of the. The front inner wall portion is formed on the vehicle front side (engine room side) with respect to the dash panel.
JP 11-348716 A

  By the way, the side wall portions on both sides in the vehicle width direction of the engine room normally bulge inside the vehicle because they constitute the side wall portions of the wheel house. In addition to the wheels, the wheel house houses a suspension device for supporting the wheels on the vehicle body, a brake device for applying braking force to the wheels, etc. In a vehicle such as a luxury vehicle that requires high motion performance, a disc brake with high heat dissipation may be employed as a brake device. In this case, the wheel size inevitably increases, and the amount of bulge into the engine room of the wheel house also increases. For this reason, in this type of vehicle, it is necessary to expand the space in the engine room in the vehicle front-rear direction by the amount of bulge into the engine room of the wheel house.

  However, when designing the vehicle, it is required to make the vehicle compartment space as wide as possible. Therefore, there is a restriction from the viewpoint of securing the vehicle compartment space for the space expansion of the engine room in the vehicle front-rear direction. Therefore, in particular, in the vehicle that requires the above-described high exercise performance, it is necessary to efficiently arrange in-vehicle components such as an engine and a battery in the engine room under such restrictions.

  However, when trying to mount the pedestrian protection device shown in Patent Document 1 on the vehicle from the viewpoint of pedestrian protection, the front wall portion of the cowl box is more than the dash panel constituting the rear wall of the engine room. Is also formed so as to project to the front side of the vehicle (engine room side), so if an in-vehicle part is arranged in a limited space, the disc brake is downsized to reduce the wheel house or the vehicle compartment space As a result, there is a problem that the braking performance and the vehicle compartment space required for the vehicle cannot be secured sufficiently.

  The present invention has been made in view of such points, and an object of the present invention is to provide a vehicle pedestrian protection device that protects a pedestrian by flipping the rear end of an engine hood upward by an actuator. On the other hand, by devising the configuration, in the vehicle where it is difficult to secure the space in the front-rear direction of the engine room in the vehicle, it affects the arrangement of the in-vehicle components that are arranged in the engine room or in the wheel house on the side of the engine room. The above-mentioned actuator is to be arranged efficiently without giving any.

  In order to achieve the above object, according to the first aspect of the present invention, an engine in which side walls on both sides in the vehicle width direction are formed by a wheel house that bulges inside the vehicle and opens upward to accommodate the engine therein. A dash panel extending in the vehicle width direction and partitioning the engine room and the vehicle room disposed on the vehicle rear side of the engine room; and extending in the vehicle width direction along an upper portion of the dash panel A cowl box that is opened upward, an engine hood that covers an upper opening of the engine room and at least a part of the upper opening of the cowl box, and a vehicle rear side end of the engine hood is flipped upward, An object of the present invention is a vehicle pedestrian protection device including an actuator that expands a space between the engine hood and the engine.

  The actuator is arranged inside the cowl box and attached to the cowl box at a position on the rear side of the vehicle with respect to the dash panel.

  According to this configuration, it is possible to prevent the space efficiency in the vehicle front-rear direction in the engine room from being lowered due to the actuator being disposed at the front side of the vehicle. Therefore, in order to maintain the space efficiency in the engine room, the actuator can be efficiently arranged without reducing the wheel house diameter or changing the arrangement of components in the engine room.

  According to a second aspect of the present invention, in the first aspect of the present invention, the inner wall surface portion forming the cowl box is provided with a concave portion projecting toward the passenger compartment side, and at least a part of the actuator is in the concave portion. It shall be arrange | positioned in the said cowl box in the state accommodated in the.

  According to a third aspect of the present invention, in the second aspect of the present invention, the recess is formed in the bottom wall portion of the cowl box so as to open upward.

  According to the second and third aspects of the present invention, the actuator is efficiently arranged even when a sufficient space in the vertical direction between the bottom wall portion of the cowl box and the engine hood cannot be secured. be able to.

  That is, in a vehicle such as a sports car, where the exercise performance is important, the height position of the engine hood is set low in order to lower the center of gravity, and the gap between the engine and the engine hood is narrower than that of a normal vehicle. However, if an engine hood lift mechanism using an actuator is employed, this gap can be sufficiently ensured at the time of a vehicle collision, and this lift mechanism is particularly useful from the viewpoint of mitigating the impact of an occupant's secondary collision.

  However, in this case, since the vertical space between the cowl box (the bottom wall portion of the cowl box) and the engine hood is narrow, it is difficult to dispose the actuator in the cowl box.

  Therefore, it is conceivable to reduce the size of the actuator by reducing the lift stroke of the actuator, but it is not preferable from the viewpoint of reducing the impact during the secondary collision of the occupant. Although it is possible to increase the position of the engine hood, it is necessary to increase the passenger compartment's view by increasing the floor height of the passenger compartment. As a result, the center of gravity of the vehicle increases. As a result, there is a problem that the vehicle motion performance is degraded.

  On the other hand, in the inventions of claims 2 and 3, a concave portion is provided in the bottom wall portion of the cowl box, which is conventionally considered to be a flat surface from the viewpoint of drainage and the like, and this concave portion is formed in the actuator. By using it as an installation space, it is possible to efficiently arrange the actuator between the cowl box and the engine hood without reducing the stroke of the actuator or lowering the motion performance of the vehicle. .

  In the invention of claim 4, in the invention of claim 2 or 3, the cowl box is connected to and supported by the dash panel, and the hinge pillar that constitutes a part of the side wall portion on both sides in the vehicle width direction of the vehicle compartment. The hinge pillar is connected and supported, and is connected to the dash panel.

  According to this, the cowl box is supported by both the dash panel and the hinge pillar, and the hinge pillar is connected to the dash panel, so that the reaction force when driving the actuator is distributed and received by the dash panel and the hinge pillar. be able to. Further, by connecting the dash panel and the hinge pillar to each other, the support rigidity of the cowl box by both panels can be further improved.

  According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the recess is formed at both ends of the cowl box in the vehicle width direction.

  According to this structure, the said recessed part can be directly connected and supported by a hinge pillar. Therefore, the reaction force when the actuator is driven can be received more reliably by the hinge pillar.

  According to a sixth aspect of the present invention, in the invention according to any one of the second to fifth aspects, the recess of the cowl box is formed with a communication portion that communicates with a space outside the hinge pillar in the vehicle width direction. .

  According to this configuration, water that has entered the cowl box can be discharged out of the cowl box from the communicating portion. Accordingly, it is possible to prevent water from accumulating in the cowl box and to reliably protect the sensors of the actuator disposed in the cowl box.

  According to a seventh aspect of the present invention, in the invention according to any one of the second to sixth aspects, the cowl box includes a cowl box main body, and a housing member that is formed of a separate member from the cowl box main body to form the recess. In the bottom wall portion of the cowl box main body, a recess mounting opening that can be mounted by fitting the housing member is formed.

  According to this configuration, since the housing member for forming the recess is separated from the cowl box body, the recess can be easily formed without using deep drawing.

  According to an eighth aspect of the present invention, in the vehicle according to any one of the second to seventh aspects, the vehicle is connected to the master cylinder for generating a hydraulic pressure corresponding to the depression force of the brake pedal of an occupant of the vehicle, and the master cylinder. And a master back for boosting the pedaling force of the occupant's brake pedal so as to increase the generated hydraulic pressure, and the recess in the dash panel at substantially the same height as the recess and in front of the vehicle. It is assumed that a master back attaching portion for attaching the master back is provided at a position where the master back is provided.

  According to this configuration, the master back mounting portion is formed at a position that is substantially the same height as the concave portion and does not overlap when viewed from the front of the vehicle. The actuator can be efficiently arranged without affecting.

  As described above, according to the pedestrian protection device for a vehicle of the present invention, even if it is difficult to secure a space in the vehicle front-rear direction of the engine room, the pedestrian protection device is disposed in the engine room or the wheel house on the side of the engine room. The actuator can be efficiently arranged without affecting the arrangement of the on-vehicle components.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a front structure of a vehicle A on which a pedestrian protection device 100 according to an embodiment of the present invention is mounted. This vehicle A is a so-called sport in which a low center of gravity of the entire vehicle is achieved with emphasis on exercise performance. It is a type of vehicle. An engine room 3 that opens upward to accommodate the engine 2 is provided in front of the vehicle compartment 1 of the vehicle A, and this upper opening is a hood hood 10 (not shown in FIG. 1; see FIG. 2). It is covered so that it can be opened and closed. In the following description, “front side” and “rear side” mean the front side and rear side of the vehicle, respectively, and “left side” and “right side” mean the left side and right side of the vehicle, respectively.

  In the engine room 3, in addition to the engine 2, an ECU (not shown) for controlling the operation of the engine 2 and other in-vehicle devices, a battery (not shown) for supplying electric power to each in-vehicle device, an engine A radiator 5 that cools the cooling water warmed in 2, a master back 7 that constitutes the brake device 6, and the like are accommodated. As the brake device 6, in this embodiment, a disc brake (not shown) having excellent heat dissipation is employed. The engine 2 is attached and fixed to a pair of left and right front side frames 9 disposed in the lower part of the engine room 3 via an engine mount (not shown).

  Side wall portions on both sides in the vehicle width direction of the engine room 3 are constituted by a pair of left and right wheel aprons 16 that partition the engine room 3 and the wheel house 15, and the wheel house 15 and the suspension tower 17 are formed by the wheel apron 16. ing.

  The wheel house 15 has an arch shape when viewed from the vehicle width direction (see FIG. 2), and bulges inward of the engine room 3. The wheel house 15 houses a wheel (wheel) (not shown) and a caliper that applies a braking force to the wheel. The suspension tower 17 is formed so as to protrude further upward from the upper portion of the wheel house 15 (that is, inward of the engine room 3). The suspension tower 17 accommodates a suspension for suspending wheels on the vehicle body.

  The rear wall portion of the engine room 3 is constituted by a dash panel 18 as shown in FIG. The dash panel 18 includes a vertical panel portion 19 extending in the vehicle width direction and the vertical direction, and extends substantially obliquely downward from the lower end edge of the vertical panel portion 19 toward the vehicle rear side and then toward the vehicle rear side. The engine room 3 and the vehicle compartment 1 are partitioned by the vertical panel part 19.

  A cowl box 26 extending in the vehicle width direction along the upper edge of the vehicle rear side surface (vehicle compartment side surface) in the vertical panel portion 19 of the dash panel 18 is connected. Both end portions in the vehicle width direction of the cowl box 26 are connected and supported by hinge pillars 24 (see FIG. 4) constituting part (front portions) of the side wall portions on both sides in the vehicle width direction of the passenger compartment 1. The hinge pillar 24 is connected to the dash panel 18.

  The cowl box 26 has a function as an air box for introducing outside air to an air conditioner or the like, and a function as a storage space for a wiper device (not shown). In the present embodiment, the cowl box 26 is It has a concave shape that opens upward.

  More specifically, as shown in FIGS. 2 and 3, the cowl box 26 includes a cowl main body 27 and a housing member 29 that constitutes a cylinder housing recess 28 described later.

  The cowl body 27 includes a dash upper panel 36 that constitutes a front wall portion 34 and a bottom wall portion 35 of the cowl box 26, and a cowl panel 38 that is provided on the dash upper panel 36 and supports the lower end portion of the windshield 25. It is comprised by combining.

  The front portion of the cowl panel 38 is overlapped and joined to the rear portion of the dash upper panel 36. The rear part of the cowl panel 38 extends obliquely upward toward the rear side of the vehicle together with the dash upper panel 36 and is connected to the windshield 25. Further, as shown in FIG. 1, the cowl panel 38 has a U-shape that opens to the front in a vehicle plan view, and left and right apron rains, which are vehicle body members, are provided at both ends of the cowl panel 38 in the vehicle width direction. A fixed bracket portion 39 extending substantially horizontally along the force 44 is provided. The fixing bracket portion 39 of the cowl panel 38 is fixed to the left and right apron reinforcements 44. A vertical wall portion 40 constituting a side wall portion of the cowl box 38 is connected to an end edge of each fixed bracket portion 39 on the inner side in the vehicle width direction. The lower end portion of the vertical wall portion 40 is supported by the bottom wall portion 58 of the cylinder housing recess 28.

  As shown in FIGS. 3 and 4, at both ends in the vehicle width direction of the bottom wall portion 35 of the cowl box 26, cylinder receiving recesses 28 for storing lower portions of lift cylinders 45 described later (the left side storing recesses 28 in the figure). Only shown).

  The pair of left and right cylinder housing recesses 28 has a concave shape that opens to the upper side and the outside in the vehicle width direction (left side with respect to the left housing recess 28 and right side with respect to the right housing recess 28). The housing recess 28 is formed by a housing member 29 separate from the cowl box 26. That is, the cylinder housing recess 28 is formed with a U-shaped notch 46 (see FIG. 1) that opens to the outside of the vehicle at both ends of the bottom wall 35 of the cowl box 26 in the vehicle width direction. A container-shaped accommodation member 29 that is open on the upper side and the outer side in the vehicle width direction is fitted in. The housing member 29 is fixed by joining a flange portion 29 a formed along the upper edge of the housing member 29 to the bottom wall portion 35 of the cowl box 26. Further, the outer edge of the housing member 29 in the vehicle width direction is connected and supported to the hinge pillar 24 via a flange portion 29b formed along the edge (see FIG. 4). The housing recess 28 and the space 84 on the outer side in the vehicle width direction of the hinge pillar 24 communicate with each other through a notch hole 83 provided in the vertical wall portion 40. The accommodating member 29 is an integrally molded product by press working.

  The lift cylinder 45, which will be described in detail later, is of a type that operates upon receiving gas supply from the inflator 47, and is attached to the rear wall 48 of the cylinder housing recess 28 by a support member 49 (see FIG. 3). The support member 49 has a U-shaped portion 54 formed in a substantially U shape so as to embrace the main body 45a of the lift cylinder 45 and the inflator 47, and each end portion of the U-shaped portion 54 on the U-shaped opening side. It consists of a pair of connected flange portions 55. Then, the lift cylinder 45 and the inflator 47 are fixed to the rear wall portion 48 by fixing each flange portion 55 to the rear wall portion 48 with a bolt 56 via a shim plate 57. In a state where the lift cylinder 45 is attached to the rear wall portion, a gap 59 is provided between the lift cylinder 45 and the bottom wall portion 58 of the cylinder housing recess 28.

  A mounting opening 60 (see FIG. 4) for mounting the master back 7 is formed at a height position substantially the same as the cylinder housing recess 28 in the dash panel 18. The opening 60 for attachment is arranged in parallel in the vehicle width direction so that it may not overlap with the cylinder accommodation recessed part 28 in the vehicle front view.

  The master back 7 has a known booster mechanism for boosting the depression force of the brake pedal 61 (see FIG. 2) by the occupant, and the caliper (illustrated) from the master cylinder 8 connected to the master back 7 The hydraulic pressure supplied to (omitted) is increased. The master back 7 is formed by fitting a prism 12 (on the hexagonal prism in this embodiment) provided on the input rod 11 side into the mounting opening 60 and using a bolt (not shown) to form a dash panel. 18 (vertical panel portion 19).

  The bonnet hood 10 is formed by joining the peripheral portions of two panels, an outer panel 10a and an inner panel 10b. In its closed state, the hood hood 10 is disposed so as to cover the entire upper opening of the engine room 3 and to cover the upper openings near both ends of the cowl box 26 in the vehicle width direction. That is, when the hood 10 is in the closed state, the rear edge of the hood 10 near the both ends in the vehicle width direction is located behind the rear edge of the upper opening of the cowl box 26 (FIG. 3). reference).

  As shown in FIGS. 4 to 6, lift devices 70 are respectively disposed between the vehicle width direction both ends (vehicle both left and right ends) of the rear end portion of the back surface of the bonnet hood 10 and the vehicle body. This lift device 70 reduces the impact when a pedestrian collides with the hood hood 10 by raising the rear end of the hood hood 10 upward when a pedestrian collides with the front of the vehicle. It is.

  Specifically, the lift device 70 includes a hood fixing bracket 72 fixed to the lower surface of the hood hood 10 via a shim plate 71, a contact plate 73 fixed to the lower surface of the hood fixing bracket 72, and a vehicle body (apron rain). A vehicle body fixing bracket 74 fixed to the force 44) via the fixing bracket portion 39 of the cowl panel 38, and one end portion connected to the hood fixing bracket 72 via the first support pin 91 and the other end. A hinge arm 77 having a portion connected to the vehicle body fixing bracket 74 via a second support pin 92, and a hood side arm 78 having one end connected to an intermediate portion of the hinge arm 77 via a third support pin 93; One end is connected to the hood side arm 78 via a fourth support pin 94 and the other end is connected to the vehicle body fixing bracket 74 with a fifth support pin 95. A vehicle body-side arm 79 which is connected to, and a lift cylinder 45, the. The support pins 91 to 95 extend in the vehicle width direction, and the arms 77 to 79 are rotatable around the support pins 91 to 95, respectively.

  When the ECU determines that a pedestrian has collided with the front surface of the vehicle based on a signal from a collision detection sensor (not shown) disposed near the surface of the front bumper 80 (see FIG. 1), An operation signal is output to the inflator 47. When the inflator 47 is actuated in response to this actuating signal, gas is supplied into the lift cylinder 45. As a result, the rod 45b of the lift cylinder 45 extends at a stretch and contacts the abutting plate 73 and the rear of the hood hood 10. Push the end upward. At this time, the hinge arm 77 rotates in the R direction (see FIG. 6) around the second support pin 92, and the hood side arm 78 rotates in the S direction in the figure around the fourth support pin 94. The arm 79 rotates around the fifth support pin 95 in the T direction in the figure. Then, the rear end portion of the hood hood 10 is pushed upward, so that the vertical space between the hood hood 10 and the engine 2 that is a highly rigid member is expanded. The impact applied to the pedestrian who collided secondary can be reduced.

  By the way, in the sports specification vehicle A in which exercise performance is emphasized as in the above-described embodiment, a wheel brake is adopted as compared with a normal vehicle (family car, light vehicle, etc.) by adopting a disk brake having high heat dissipation. 15 becomes larger and the space efficiency in the engine room 3 decreases. For this reason, when the pedestrian protection apparatus 100 is mounted on this type of vehicle A, the lift cylinder 45 having a relatively large volume is efficiently arranged while ensuring a sufficient space in the engine room 3. It is required to install.

  On the other hand, in the above embodiment, the cowl box 26 is disposed on the rear side of the dash panel 18, and the rear wall portion 48 of the cylinder housing recess 28 formed in the bottom wall portion 35 of the cowl box 26 is recessed. By attaching the lift cylinder 45, it is possible to prevent the support portion of the lift cylinder 45 from projecting to the front side (engine room side) from the dash panel 18 and reducing the space efficiency in the engine room 3. it can. Therefore, in order to maintain the space efficiency in the engine room 3, the lift cylinder 45 is efficiently arranged without reducing the wheel house diameter or changing the arrangement of parts (master back, etc.) in the engine room 3. Can be set.

  Further, even when the height position of the hood hood 10 is set to be low in order to lower the center of gravity of the entire vehicle as in the vehicle A, the lift cylinder 45 can be secured while ensuring a sufficient stroke of the lift cylinder 45. 45 can be efficiently disposed between the cowl box 26 and the hood 10.

  In the above embodiment, the cowl box 26 is connected to and supported by both the dash panel 18 and the hinge pillar 24, so that the reaction force when the lift cylinder 45 is driven can be reduced with the dash panel 18. The hinge pillars 24 can be received in a distributed manner.

  In the above embodiment, the left and right cylinder accommodating recesses 28 are formed so as to open outward in the vehicle width direction, so that water that has entered the cylinder accommodating recess 28 (in the cowl box 26) is released. The portion can be discharged out of the cylinder housing recess 28. Thereby, the sensor 81 etc. attached to the lift cylinder 45 can be reliably protected.

  Moreover, in the said embodiment, since the said cylinder accommodating recessed part 28 was comprised by the accommodating member 29 separate from the cowl main body 27, the cylinder accommodating recessed part 28 is shape | molded, for example by pressing the dash upper panel 36. The cylinder housing recess 28 can be easily formed without performing the deep drawing required in some cases.

  Further, in the above embodiment, the master back 7 is attached to the dash panel 18 (vertical panel portion 19) at a height position substantially the same as the cylinder housing recess 28 and at a position juxtaposed to the housing recess 28 in a vehicle front view. By forming the mounting opening 60 for this purpose, the lift cylinder 45 can be efficiently arranged without lowering the arrangement height positions of the master back 7 and the master cylinder 8. Thereby, since the pushing force of the input rod 11 when a passenger | crew steps on the brake pedal 61 can fully be ensured, the braking performance of the brake device 6 does not fall.

(Other embodiments)
The configuration of the present invention is not limited to the above embodiment, but includes various other configurations. That is, in the above-described embodiment, the front wall portion 34 of the cowl box 26 is configured by the dash upper panel 36 that is a separate member from the dash panel 18, but the present invention is not limited to this. The front wall portion 34 of the cowl box 26 may be configured by the upper end portion.

  In the above embodiment, the cylinder housing recess 28 is provided in the bottom wall portion 35 of the cowl box 26, but the housing recess 28 is not necessarily provided. That is, if the lift cylinder 45 is provided inside the cowl box 26 and at a position on the rear side of the vehicle with respect to the dash panel 18, the space where the lift cylinder 45 is provided is not limited to the cylinder housing recess 28. Swelling in the room 3 can be suppressed, and the space efficiency in the engine room 3 can be sufficiently ensured.

  In the above embodiment, the cowl box 26 is disposed on the rear side of the dash panel 18. However, the present invention is not limited to this. For example, the front-rear direction intermediate portion of the bottom wall portion 35 of the cowl box 26 is provided. The cowl box 26 may be disposed on the upper side of the vertical panel portion 19 by being connected along the upper edge of the vertical panel portion 19 of the dash panel 18.

  In the above embodiment, the cylinder housing recess 28 is formed as a separate member from the cowl main body 27. However, the present invention is not limited to this. For example, as shown in FIG. Also good.

  In the above embodiment, the vehicle A is a sports type vehicle, but is not limited to this, and may be, for example, a normal family car or a light car.

  In the above embodiment, the disc brake is adopted as the brake device 6 of the vehicle A, but the present invention is not limited to this, and for example, a drum type brake device may be used.

  In the above embodiment, the lower portion of the lift cylinder 45 is accommodated in the cylinder accommodating recess 28, but the present invention is not limited to this, and the entire lift cylinder 45 may be accommodated.

  INDUSTRIAL APPLICABILITY The present invention is useful for a pedestrian protection device for a vehicle including an actuator that flips the rear end of an engine hood upward when a pedestrian collides with the front of the vehicle, and is particularly applicable to a sports type vehicle. Useful in cases.

It is the schematic seen from the vehicle upper side which shows the structure of the vehicle front part which concerns on embodiment of this invention. It is the II-II sectional view taken on the line of FIG. 1 which shows the state before the action | operation of a lift apparatus. It is the III-III sectional view taken on the line of FIG. 1 which shows the state before the action | operation of a lift apparatus. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1 showing a state before the lift device is activated. It is the VV sectional view taken on the line of FIG. 1 which shows the state before the action | operation of a lift apparatus. It is the VV sectional view taken on the line of FIG. 1 which shows the state after the action | operation of a lift apparatus. FIG. 5 is a view corresponding to FIG.

A Vehicle 3 Engine room 7 Master back 8 Master cylinder 10 Bonnet hood (engine hood)
15 wheel house 18 dash panel 24 hinge pillar 26 cowl box 27 cowl body 28 cylinder recess (recess)
29 Housing member (concave forming member)
35 Cowl box bottom wall 45 Lift cylinder (actuator)
46 Notch (recess mounting opening)
48 Cylinder housing rear wall (support)
60 Mounting opening (master back mounting)
61 Brake pedal 83 Notch hole (communication part)
84 Space 100 Pedestrian protection device

Claims (8)

Side walls on both sides in the vehicle width direction are formed by a wheel house that bulges inside the vehicle and opens upward, and an engine room in which the engine is housed is extended, and extends in the vehicle width direction. A dash panel that partitions the vehicle compartment on the vehicle rear side of the engine room, a cowl box that extends in the vehicle width direction along the upper part of the dash panel and opens upward, and an upper opening of the engine room And an engine hood that covers at least a part of the upper opening of the cowl box, and an actuator that jumps up the vehicle rear side end of the engine hood upward to expand a space between the engine hood and the engine. A pedestrian protection device for a vehicle comprising:
The pedestrian protection device for a vehicle, wherein the actuator is disposed inside the cowl box and attached to the cowl box at a position on the rear side of the vehicle with respect to the dash panel. The vehicle pedestrian protection device according to claim 1,
The inner wall surface portion forming the cowl box is provided with a recess protruding toward the passenger compartment,
The pedestrian protection device for a vehicle, wherein the actuator is disposed in the cowl box in a state where at least a part of the actuator is accommodated in the recess. The pedestrian protection device for a vehicle according to claim 2,
The pedestrian protection device for a vehicle, wherein the recess is formed in the bottom wall portion of the cowl box so as to open upward. In the pedestrian protection device for a vehicle according to claim 2 or 3,
The cowl box is connected to and supported by the dash panel, and is connected to and supported by hinge pillars that constitute part of the side walls on both sides in the vehicle width direction of the passenger compartment.
The pedestrian protection device for a vehicle, wherein the hinge pillar is connected to the dash panel. The vehicle pedestrian protection device according to claim 4,
The pedestrian protection device for a vehicle, wherein the recess is formed at both ends of the cowl box in the vehicle width direction. In the pedestrian protection device for vehicles according to any one of claims 2 to 5,
A pedestrian protection device for a vehicle, wherein a communication portion communicating with a space outside the hinge pillar in the vehicle width direction is formed in the concave portion of the cowl box. The pedestrian protection device for a vehicle according to any one of claims 2 to 6,
The cowl box has a cowl box main body, and a housing member that is formed of a separate member from the cowl box main body and forms the recess.
A pedestrian protection device for a vehicle according to claim 1, wherein a recess mounting opening is formed in the bottom wall portion of the cowl box main body so that the housing member can be fitted and attached. In the pedestrian protection device for vehicles according to any one of claims 2 to 7,
The vehicle boosts the pedaling force of the occupant's brake pedal so as to generate a hydraulic pressure corresponding to the pedaling force of the brake pedal of the occupant of the vehicle and the master cylinder connected to the master cylinder to increase the generated hydraulic pressure. With a master back,
In the dash panel, a master back mounting portion for mounting the master back is provided at a position that is substantially the same height as the recess and is arranged in parallel with the recess in a front view of the vehicle. Vehicle pedestrian protection device.

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