JP5426457B2 - Pedestrian protection device for vehicles - Google Patents

Description

  The present invention relates to a pedestrian protection device for a vehicle that is disposed in a front part of a vehicle body and absorbs collision energy at the time of collision with a pedestrian.

  When it is judged that it is inevitable that the vehicle collides with the pedestrian, the upper body of the pedestrian is lifted by causing the arm extending in the left-right direction of the vehicle body to protrude forward from the lower part of the bumper and collide with the leg of the pedestrian A device that falls on a hood and absorbs collision energy is known from Patent Document 1 below.

In addition, when it is judged that it is inevitable that the vehicle will collide with a pedestrian, the front grill and lower bumper, which have an energy absorption function, project forward from the vehicle body, so that the collision energy applied to the lower body of the pedestrian is applied to the front grill and lower bumper . What is dispersed is known from Patent Document 2 below.

Japanese Patent No. 4048461 JP 2007-320530 A

  By the way, as in the invention described in the above-mentioned Patent Document 1, in the case where the upper body of the pedestrian is brought down on the hood to absorb the collision energy, when the angular velocity at which the upper body of the pedestrian rotates is large, There is concern that a big impact will be applied.

  Also in the invention described in Patent Document 2, since the lower bumper protrudes forward from the front grille, the leg portion of the pedestrian is strongly pushed forward, the angular velocity at which the upper body rotates backward is increased, and the head is There is a possibility of strong collision with the hood.

  The present invention has been made in view of the above circumstances, and effectively absorbs collision energy while suppressing the angular velocity at which the upper body of the pedestrian falls backward when the front of the vehicle collides with the pedestrian. With the goal.

In order to achieve the above object, according to the invention described in claim 1, it is formed in a U shape or a V shape in a plan view, and a central portion in the left-right direction is convexly curved toward the front of the vehicle body of the automobile . A lumbar energy absorbing member that collides with the pedestrian's waist and absorbs the collision energy, and a leg whose left and right central part curves convexly toward the front of the vehicle body and collides with the pedestrian's leg and absorbs the collision energy a Department energy absorbing member, the left-right direction central portion of the waist-energy absorbing member, prior to a collision with a pedestrian is located further forward than the left-right direction central portion of the leg portion energy absorbing member, with a pedestrian a pedestrian protection apparatus for absorbing the impact energy by moving rearward from the lateral middle portion of the leg portion energy absorbing member by collision load after the collision, the lumbar energy absorbing member is the leg The leg energy absorbing member is disposed on the left and right side portions of the front portion of the vehicle body and is coupled to the front ends of a pair of left and right front side frames extending in the longitudinal direction of the vehicle body. Both ends of the energy absorbing member in the left-right direction are connected to the stay located at a position higher than the front side frame, coupled to the middle of a pair of left and right upper members extending from the front ends of the left and right front pillars of the vehicle body. The at least one of the left and right pins is rotatably connected to a long hole provided in the waist energy absorbing member, and the waist energy absorbing member is rotated and retracted. pedestrian protection apparatus characterized by allowing the Ru been proposed.

According to a second aspect of the present invention, in addition to the configuration of the first aspect , the upper portion of the cooling device is supported by a mounting bracket protruding rearward from the waist energy absorbing member. A pedestrian protection device is proposed.

According to the invention described in claim 3 , in addition to the configuration of claim 1 or claim 2 , a hood lock for fixing the front end of the bonnet hood is provided at the center in the left-right direction of the waist energy absorbing member, And the said center part in the left-right direction is connected with the center part in the left-right direction of the said leg part energy absorption member through the connection member extended in an up-down direction, The pedestrian protection apparatus for vehicles characterized by the above-mentioned is proposed.

According to the invention described in claim 4 , in addition to the configuration of claim 3 , the connecting member includes a weakly fragile portion at the connecting portion with the leg energy absorbing member. A vehicle pedestrian protection device is proposed.

According to the invention described in claim 5 , in addition to the configuration of claim 3 or claim 4 , the connecting member is connected to the leg energy absorbing member at the connecting portion with the leg energy absorbing member. A pedestrian protection device for vehicles is provided that includes a sliding portion that can slide back and forth.

Incidentally, the bumper beam 16 of the implementation of embodiments corresponds to the leg portion energy absorbing member of the present invention corresponds to the waist energy absorption member of the bulkhead upper member 18 present invention of the embodiment, the embodiment of the center beam 19 corresponds to the connecting member of the present invention, the notch 19a of the embodiment corresponds to the fragile portion of the present invention, the long hole 19b of the embodiment corresponds to the sliding portion of the present invention, and the radiator of the embodiment The mounting bracket 24 and the capacitor mounting bracket 25 correspond to the mounting bracket of the present invention, and the radiator 28 and the capacitor 29 of the embodiment correspond to the cooling device of the present invention.

  According to the structure of Claim 1, the center part in the left-right direction of the lumbar energy absorbing member is positioned ahead of the center part in the left-right direction of the leg energy absorbing member before the collision with the pedestrian, and collides with the pedestrian. Later, due to the collision load, the leg energy absorbing member moves rearward from the central part in the left-right direction, so that the collision load applied to the waist energy absorbing member near the pedestrian's center of gravity position is increased and the leg far from the pedestrian's center of gravity position. By reducing the impact load applied to the waist energy absorbing member, the angular velocity at which the upper body of the pedestrian falls backward is protected to protect the pedestrian's head, and the amount of deformation of the waist energy absorbing member to the rear is sufficient. By securing the collision energy, the collision energy can be sufficiently absorbed while avoiding an excessive collision load applied to the waist of the pedestrian. Also, when a pedestrian collides with a position offset in the left-right direction from the center of the vehicle body, the waist energy absorbing member and the leg energy absorbing member are not easily deformed, so the impact energy absorbing effect is reduced, but the waist energy absorbing member and the leg Since the center part energy absorption member is curving convexly toward the front of the vehicle body in the left-right direction, the pedestrian can escape from the collision position to the outside in the left-right direction to reduce the collision load.

In addition, since the left and right end portions of the waist energy absorbing member are rotatably connected to the vehicle body frame, even if the waist energy absorbing member is deformed rearward due to a collision load and a bending load acts on the connecting portion with the vehicle body frame, The deformation of the vehicle body frame due to the bending load can be minimized . Further , since at least one of the left and right ends of the waist energy absorbing member is slidably connected to the vehicle body frame, the waist energy absorbing member is deformed rearward by a collision load, and the vehicle body left and right are connected to the connecting portion with the vehicle body frame. Even when an outward load is applied from the center in the direction, deformation of the vehicle body frame due to the load can be minimized.

In addition, the waist energy absorbing member is thinner and less rigid than the leg energy absorbing member, and at least one of the left and right ends is supported by a pin and a long hole so as to be rotatable and slidable. The absorbing member can move rearward with a smaller load than the leg energy absorbing member, thereby increasing the amount of backward movement of the waist energy absorbing member to ensure the amount of energy absorption, while maintaining the energy absorption amount from the lumbar energy absorbing member to the pedestrian. It is possible to prevent the collision load input to the waist from becoming excessive.

According to the second aspect of the present invention, since the upper part of the cooling device is supported by the mounting bracket protruding rearward from the waist energy absorbing member, the upper part of the cooling device is deformed when the waist energy absorbing member is deformed rearward by a collision load. By tilting backward, damage to the cooling device can be minimized.

According to the third aspect of the present invention, the hood lock for fixing the front end of the bonnet hood is provided at the center portion in the left-right direction of the waist energy absorbing member, and the center portion in the left-right direction is connected to the leg via the connecting member extending in the up-down direction. Since it is connected to the central part in the left-right direction of the partial energy absorbing member, when the bonnet hood is strongly closed, the load can be transmitted to the leg energy absorbing member via the hood lock and the connecting member.

According to the configuration of the fourth aspect of the present invention, since the connecting member includes a fragile portion that is easily bent at the connecting portion with the leg energy absorbing member, at the time of a light collision in which a collision load is input only to the waist energy absorbing member, By preventing the fragile portion from being deformed and the leg energy absorbing member from being deformed, the repair cost of the leg energy absorbing member can be reduced.

According to the fifth aspect of the present invention, the connecting member includes the sliding portion that can slide back and forth with respect to the leg energy absorbing member at the connecting portion with the leg energy absorbing member. It is possible to reduce the repair cost of the leg energy absorbing member by preventing the sliding portion of the connecting member from sliding and deforming the leg energy absorbing member at the time of a light collision in which a collision load is input. Conversely, during a light collision in which a collision load is input only to the leg energy absorbing member, the sliding part of the connecting member slides and only the leg energy absorbing member is deformed to prevent deformation of the waist energy absorbing member. The repair cost of the waist energy absorbing member can be reduced.

The perspective view of the vehicle body front part of a motor vehicle. (First embodiment) FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. (First embodiment) FIG. 3 is a three-direction arrow view of FIG. 1. (First embodiment) Action explanatory drawing at the time of a collision with a pedestrian. (First embodiment) Action explanatory drawing at the time of a collision with a pedestrian. (First embodiment) Action explanatory drawing at the time of a collision with a pedestrian. (First embodiment) The figure which shows arrangement | positioning of a waist | lumbar part energy absorption member and a leg part energy absorption member. (Second Embodiment)

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, a pair of left and right front side frames 11, 11 extending in the longitudinal direction of the vehicle body are disposed on the left and right sides of the front portion of the vehicle body. The front ends of the pair of left and right upper members 12, 12 extending from the front ends of a pair of left and right front pillars (not shown) to the front lower side of the vehicle body are connected to the front side frames 11, 11 via a pair of left and right stays 13, 13 extending in the left-right direction. Connected to the outer surface of the front end. A pair of left and right curved stays 14 and 14 extend from the front end of the upper members 12 and 12 slightly toward the rear side in a direction approaching each other, and the inner ends thereof are connected to the front side via the pair of left and right bulkhead side members 15 and 15. It is coupled to the front ends of the frames 11 and 11. Both ends of the bumper beam 16 arranged in the left-right direction are coupled to the front ends of the front side frames 11, 11 via stays 17, 17.

  The left and right ends of the bulkhead upper member 18 are coupled to the inner ends of the left and right stays 14, 14 facing each other and the upper ends of the left and right bulkhead side members 15, 15. The central portion of the beam 16 in the left-right direction is connected by a center beam 19 extending in the vertical direction. The left and right ends of the bulkhead lower member 20 are coupled to the lower ends of the left and right bulkhead side members 15, 15.

  The bulkhead upper member 18 is curved in a U shape or a V shape toward the front in a plan view, and the right end thereof is rotatably connected to the left and right inner ends of the right stay 14 by a pin 21. A long hole 18a formed at the left end of the left stay 14 is connected to the left and right inner ends of the left stay 14 by a pin 22 so as to be rotatable and slidable. The center beam 19 whose upper end is fixed to the bulkhead upper member 18 is formed with a fragile portion made of a notch 19a at the lower portion thereof, and a long hole 19b provided at the lower end can slide on the upper surface of the bumper beam 16 with a pin 23 Connected to The bumper beam 16 is curved in an arc shape so that the central portion protrudes forward of the vehicle body, but the central portion of the bulkhead upper member 18 that curves in a U-shape or V-shape is more vehicle-shaped than the central portion of the bumper beam 16. Projects forward. Therefore, the center beam 19 is disposed so as to be inclined so that the upper end protrudes forward of the vehicle body from the lower end.

  A pair of radiator mounting brackets 24, 24 and a pair of capacitor mounting brackets 25, 25 project from the rear edge of the bulkhead upper member 18, and a pair of rubber members is formed on the upper surface of the bulkhead lower member 20. Radiator support members 26, 26 and a pair of rubber capacitor support members 27, 27 are provided. A radiator 28 is supported between the radiator mounting brackets 24 and 24 and the radiator support members 26 and 26, and a capacitor 29 is supported between the capacitor mounting brackets 25 and 25 and the capacitor support members 27 and 27.

  A hood lock 32 that locks the striker 31 provided at the front end of the bonnet hood 30 that covers the upper part of the engine room, and a stopper 33 that elastically supports the front end of the bonnet hood 30 are the upper surface of the central portion of the bulkhead upper member 18. Is provided.

  Next, the operation of the embodiment of the present invention having the above configuration will be described.

In FIG. 4, consider a case where a vehicle _collides with a pedestrian at a vehicle speed V _veh . Due to the collision with the pedestrian, the bulkhead upper member 18 which is the waist energy absorbing member moves backward by the distance X _hip by the collision load F _hip , and the bumper beam 16 which is the leg energy absorbing member is rearward by the collision load F _leg . _Is moved by a distance X _leg . At this time, if it is assumed that the kinetic energy of the pedestrian accelerated to the vehicle speed V _veh by the collision is absorbed by the retreat of the bulkhead upper member 18 and the bumper beam 16, the energy conservation law
(1/2) MV _veh ² = F _hip X _hip + F _leg X _leg (1)
Is established. M is the mass of the pedestrian.

If the moment of inertia around the pedestrian's center of gravity G is I and the angular acceleration around the pedestrian's center of gravity G is dω / dt, the angular motion equation
I (dω / dt) = F _hip L _hip + F _leg L _leg (2)
Is established. Note that L _hip is a moment arm from the pedestrian's center of gravity position G to the bulkhead upper member 18, and L _leg is a moment arm from the pedestrian's center of gravity position G to the bumper beam 16.

In equation (2), in order to reduce the angular velocity at which the pedestrian's head collides with the hood 30, it is necessary to reduce the angular acceleration of the left side by dω / dt. and the moment F _hip L _hip by collision load F _hip of the waist, it is necessary to reduce the moment F _leg L _leg with the collision load F _leg of the legs of the second term on the right side.

At this time, it is ideal if both the waist collision load F _hip and the leg collision load F _leg can be reduced, but in reality, the sum of the waist collision load F _hip and the leg collision load F _leg is almost equal. Since it is constant, it is only possible to make one of the waist collision load F _hip and the leg collision load F _leg larger and the other smaller.

Accordingly, when attention is paid to the moment arm L _hip from the center of gravity position G to the bulkhead upper member 18 and the moment arm L _leg from the center of gravity position G to the bumper beam 16, since L _hip <L _leg , the larger moment arm L _leg By reducing the collision load F _leg of the _leg that is multiplied by and increasing the collision load F _{hip of the} waist that is multiplied by the smaller moment arm L _hip , the sum of the moments on the right side of Equation (2) is minimized. It is possible to reduce the angular velocity of the head by minimizing the angular acceleration around the center of gravity position of the pedestrian on the left side by dω / dt.

In this regard, the inventions described in Patent Document 1 and Patent Document 2 described above are such that the vehicle body collides with the pedestrian's leg portion before the pedestrian's waist portion. _{The leg} impact load F _leg becomes larger than the _hip , and there is a problem that the sum of moments on the right side of the equation (2) becomes large and the angular velocity of the head increases.

On the other hand, in this embodiment, when the vehicle collides with a pedestrian, the bulkhead upper member 18 protrudes forward from the bumper beam 16, so that the waist collision load F _hip is greater than the _leg collision load F _leg . Thus, the angular velocity of the pedestrian's head can be minimized, and the impact when the head collides with the hood 30 can be reduced.

Thus, in order to minimize the angular velocity of the pedestrian's head, it is effective to increase the waist collision load F _hip and reduce the _leg collision load F _leg , but the waist collision load F _{If hip} is excessive, injury may occur in the pedestrian's lower back, so it is difficult to increase the waist impact load F _hip beyond the limit value. The first term on the right side of the equation (1) is the amount of collision energy absorbed by the bulkhead upper member 18, but the waist part due to deformation of the bulkhead upper member 18 even when the collision load F _{hip of the} waist part cannot be increased. By increasing the rearward movement distance X _hip , the energy absorption amount by the bulkhead upper member 18 is maximized, and the share of the energy absorption amount by the bumper beam 16 is reduced, thereby reducing the pedestrian's head. The angular velocity of the part can be reduced.

Specifically, as shown in FIG. 5 (A), when the front part of the vehicle collides with a pedestrian, the bulkhead upper member 18 that protrudes to the front side of the vehicle body first comes into contact with the waist part of the pedestrian, and the pedestrian velocity V _P of the center of gravity G gradually increases. At the initial stage of the collision shown in FIG. 5 (B), the bulkhead upper member 18 moves backward due to the collision with the pedestrian's waist and absorbs the collision energy, and the bumper beam 16 is moved behind the bulkhead upper member 18 by the pedestrian. Touch the legs.

In the middle of the collision shown in FIG. 6C, the bulkhead upper member 18 is further retracted and the bumper beam 16 is retracted due to the collision with the pedestrian's leg, but the stroke that the bumper beam 16 can retract is small. Because it is set, the retreat is completed in the middle of this collision. A pedestrian whose leg is paid forward to the bumper beam 16 rotates the upper body around the gravity center position G backward. At this time, even if the rigidity of the bulkhead upper member 18 is set low so that the waist collision load F _hip does not exceed the limit value, the waist waist rearward movement distance X _hip is large, so the waist collision energy is sufficient. The collision energy can also be absorbed by the retreat of the bumper beam 16. By ensuring the waist collision load F _hip to the maximum within the range of the limit value, the leg collision load F _leg is kept as small as possible, the moment around the pedestrian's center of gravity G is kept small, and the head It is possible to prevent the angular velocity from increasing.

  6D, the bumper beam 16 stops moving backward, and only the bulkhead upper member 18 moves backward to absorb the remaining collision energy. At this stage, there is a possibility that the head of the pedestrian collides with the hood 30. However, since the angular velocity of the head is minimized as described above, the head injury can be reduced.

  As described above, according to the present embodiment, the bulkhead upper member 18 is positioned in front of the bumper beam 16 before the collision with the pedestrian, and after the collision with the pedestrian, the bumper beam is caused by the collision load. 16, the collision load applied to the bulkhead upper member 18 near the pedestrian's center of gravity G is increased, and the collision load applied to the bumper beam 16 far from the pedestrian's center of gravity G is reduced. In addition to reducing the angular velocity at which the upper body of the pedestrian falls backward, the head of the pedestrian is protected, and a sufficient amount of deformation of the bulkhead upper member 18 in the rear is ensured to add to the pedestrian's waist. The collision energy can be sufficiently absorbed while avoiding an excessive collision load.

  Further, since the bulkhead upper member 18 is thinner and less rigid than the bumper beam 16 and both ends thereof are rotatably supported by the pins 21 and 22 and the long holes 18a, the bulkhead upper member 18 is a bumper. It can move rearward with a smaller load than the beam 16. This prevents the collision load input from the bulkhead upper member 18 to the lumbar of the pedestrian from becoming excessive while increasing the amount of movement of the bulkhead upper member 18 toward the rear to secure the amount of energy absorption. Can do.

  Further, since the energy absorption amount of the bulkhead upper member 18 is larger than the energy absorption amount of the bumper beam 16, the collision load input to the pedestrian's legs from the bumper beam 16 having a large distance from the pedestrian's center of gravity G is reduced. In addition, the angular velocity of the head can be effectively reduced so that the upper body of the pedestrian does not fall rapidly backward.

  Further, since the bulkhead upper member 18 and the bumper beam 16 are supported at the left and right ends, when the pedestrian collides with the central portion in the left and right direction of the bulkhead upper member 18 and the bumper beam 16, it is easily deformed and absorbs energy. The effect is exhibited effectively. On the other hand, when the pedestrian collides with a position offset in the left-right direction from the central portion of the bulkhead upper member 18 and the bumper beam 16, the energy absorption effect is low because the bulkhead upper member 18 and the bumper beam 16 are not easily deformed. However, since the bulkhead upper member 18 and the bumper beam 16 are convexly curved at the center in the left-right direction, the pedestrian can escape from the collision position to the outside in the left-right direction to reduce the collision load. it can.

  Further, both left and right end portions of the bulkhead upper member 18 are rotatably connected to the stays 14 and 14 by pins 21 and 22, so that the bulkhead upper member 18 is deformed rearward due to a collision load, and the stays 14 and 14 are connected. Even if a bending load acts on the connecting portion, the deformation of the stays 14 and 14 due to the bending load can be minimized.

  Further, since one end of the bulkhead upper member 18 is slidably connected to the left and right stays 14 by the long holes 18a and the pins 22, the bulkhead upper member 18 is deformed rearward due to a collision load, so Even if an outward load is applied to the connecting portion between the stays 14 and 14 from the center in the left-right direction of the vehicle body, the deformation of the stays 14 and 14 due to the load can be minimized.

  Further, the radiator mounting brackets 24 and 24 and the capacitor mounting brackets 25 and 25 projecting rearward from the bulkhead upper member 18 support the upper portions of the radiator 28 and the capacitor 29, respectively, so that the bulkhead upper member 18 is moved rearward by a collision load. When the upper portion of the radiator 28 and the capacitor 29 is tilted backward together with the bulkhead upper member 18 when deformed, damage to the radiator 28 and the capacitor 29 can be minimized.

  Further, a hood lock 32 for fixing the striker 31 at the front end of the bonnet hood 30 is provided at the center in the left-right direction of the bulkhead upper member 18, and the center beam 19 extending in the vertical direction is provided at the center in the left-right direction of the bulkhead upper member 18. Since the hood hood 30 is strongly closed, the load can be transmitted to the bumper beam 16 via the hood lock 32 and the center beam 19 (see FIG. 2).

  Further, the center beam 19 is provided with a notch 19a that can be easily bent at a connecting portion with the bumper beam 16, and is supported by the bumper beam 16 through the long hole 19b and the pin 23 so as to be slidable back and forth. At the time of a light collision in which only a collision load is input, the center beam 19 is deformed at the notch 19a or the long hole 19b is slid with respect to the pin 23, thereby preventing the deformation of the bumper beam 16 and reducing the repair cost. can do.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment, the waist energy absorbing members 18 and 18 are vertically divided into two parts, and the leg energy absorbing members 16 and 16 are vertically divided into two parts. In this way, by dividing the waist energy absorbing members 18 and 18 and the leg energy absorbing members 16 and 16 into two parts vertically, the height, rigidity, amount of retreat, etc. can be changed to increase the degree of freedom in design. it can.

  The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

  For example, the waist energy absorbing member of the present invention is not limited to the bulkhead upper member 18 of the embodiment, and the leg energy absorbing member of the present invention is not limited to the bumper beam 16 of the embodiment. .

  In the embodiment, the bulkhead upper member 18 and the bumper beam 16 are fixed to the vehicle body, but one or both of them may be provided on the vehicle body so as to be movable back and forth. In this case, when it is determined that it is inevitable that the vehicle collides with a pedestrian, the bulkhead upper member 18 and / or the bumper beam 16 is moved forward, and the bulkhead upper member 18 is moved forward of the bumper beam 16. What is necessary is just to be located.

  Further, in the embodiment, the right end of the bulkhead upper member 18 is rotatably supported by the pin 21 and the left end is rotatably and slidably supported by the long hole 18a and the pin 22, but the right end and the left end are supported. The way may be reversed, and the left and right ends may be slidably supported.

  In the embodiment, the center beam 19 is slidable backward with respect to the bumper beam 16 through the long hole 19b. Also good. In this way, at the time of a light collision in which a collision load is input only to the bumper beam 16, the long hole 19b of the center beam 19 slides and only the bumper beam 16 is deformed, thereby preventing the bulkhead upper member 18 from being deformed. In addition, the repair cost of the bulkhead upper member 18 can be reduced.

11 front side frame
12 Upper member 14 Stay (body frame)
16 Bumper beam (Leg energy absorbing member)
18 Bulkhead upper member (waist energy absorbing member)
19 Center beam (connecting member)
19a notch (fragile part)
19b Long hole (sliding part)
24 Radiator mounting bracket (Mounting bracket)
25 Capacitor mounting bracket (Mounting bracket)
28 Radiator (cooling device)
29 Condenser (cooling device)
30 Bonnet food 32 Food lock

Claims (5)

A waist energy absorbing member (18) that is formed in a U shape or a V shape in plan view and has a center portion in the left-right direction curved convexly toward the front of the vehicle body to collide with the waist of a pedestrian and absorb collision energy. ), And a leg energy absorbing member (16) that is curved convexly toward the front of the vehicle body and that collides with the legs of the pedestrian and absorbs collision energy.
Horizontal center of the waist energy absorbing member (18), before a collision with a pedestrian is located further forward than the left-right direction central portion of the leg portion energy absorbing member (16), after a collision with a pedestrian Is a vehicle pedestrian protection device that absorbs collision energy by moving rearward of the leg energy absorbing member (16) from the center in the left-right direction due to a collision load ,
The waist energy absorbing member (18) is thinner and less rigid than the leg energy absorbing member (16),
The leg energy absorbing member (16) is disposed on the left and right sides of the front portion of the vehicle body and coupled to the front ends of a pair of left and right front side frames (11) extending in the vehicle body longitudinal direction.
The left and right ends of the waist energy absorbing member (18) are joined to the front side frame (11) in the middle of a pair of left and right upper members (12) extending downward from the front ends of the left and right front pillars of the vehicle body. ) Is rotatably connected to a stay (14) located at a higher position via a pair of left and right pins (21, 22),
At least one of the left and right pins (22) is rotatably and slidably connected to a long hole (18a) provided in the waist energy absorbing member (18). A pedestrian protection device for a vehicle, characterized by allowing backward movement . The vehicle pedestrian according to claim 1 , wherein the upper part of the cooling device (28, 29) is supported by a mounting bracket (24, 25) protruding rearward from the waist energy absorbing member (18). Protective device. A hood lock (32) for fixing a front end of a bonnet hood (30) is provided at a laterally central portion of the waist energy absorbing member (18), and a connecting member (19) extending in the vertical direction is provided at the laterally central portion. through left and right, characterized in that it is connected to the direction central portion, pedestrian protection apparatus according to claim 1 or 2 of the leg portion energy absorbing member (16). The pedestrian protection device for a vehicle according to claim 3 , wherein the connecting member (19) includes a fragile portion (19a) that is easily bent at a connecting portion with the leg energy absorbing member (16). . The connecting member (19) includes a sliding portion (19b) that is slidable back and forth with respect to the leg energy absorbing member (16) at a connecting portion with the leg energy absorbing member (16). The pedestrian protection apparatus for vehicles according to claim 3 or 4 .

Images