JP5004124B2 - Pedestrian protection device for vehicles - Google Patents

Description

  The present invention relates to a pedestrian protection device for a vehicle and its mounting structure, and more particularly to a pedestrian leg that is installed in a lower part of the front surface of the vehicle and pays a pedestrian leg that collides with or touches the front of the vehicle. The present invention relates to an improved structure of a vehicle pedestrian protection device that protects the vehicle and a structure that advantageously attaches such a vehicle pedestrian protection device to a vehicle.

  Conventionally, in vehicles such as automobiles, various protection devices have been installed on the front, rear, or side surfaces of the vehicle mainly for the purpose of absorbing impact energy generated in the event of a collision and protecting the vehicle body and passengers. ing. In recent years, a device for protecting a pedestrian when a pedestrian collides (contacts) with the front of the vehicle has also been installed on the front of the vehicle.

  And as a kind of such pedestrian protection device, installed inside the front bumper provided in the lower part of the front part of the vehicle, etc., the reaction force against the impact load input when the pedestrian collides with the front of the vehicle By acting on the lower part of the leg part of the pedestrian, the lower part of the leg part is paid off (scooped up), and the pedestrian falls over to the vehicle side. 2. Description of the Related Art A so-called leg cleaning device is known which is configured to protect and protect a pedestrian by placing it on a member capable of absorbing shock.

  For example, (a) a resin extending in the vehicle width direction with at least a portion protruding from the front surface of the vehicle at the lower part of the front portion of the vehicle. One having a structure in which a foam and a beam member extending in the vehicle width direction are placed in contact with the back surface of the resin foam (see, for example, Patent Document 1 below) or (A) There are metal pipes and the like that have a structure that is fixed to the lower part of the front part of the vehicle so as to extend in the vehicle width direction (for example, see Patent Document 2 below). There were some drawbacks. In other words, the (a) pedestrian protection device has a large number of parts, and therefore it is inevitable that the parts cost will rise, and the installation is troublesome. Not only does the person protection device inevitably become heavy, but it has not been easy to form it into a shape that matches the front of the vehicle.

  Under such circumstances, (c) a plate portion that is positioned so as to extend in the front-rear direction of the vehicle and is fixed to a lower portion of the front portion of the vehicle, and a front portion of the plate portion includes an upper portion and a lower portion. A plurality of reinforcing portions made of beads or flat ribs having a U-shaped cross section projecting at least in one direction and extending in the vehicle front-rear direction are integrally formed at intervals in the vehicle width direction. The rear portion of the plate portion extends in the longitudinal direction of the vehicle, and is configured to be fixed to the vehicle at the rear end portion of the rear portion ( For example, the following patent documents 3 and 4) have been proposed.

  In such a pedestrian protection device of (c), for example, if the plate portion and a plurality of reinforcing portions provided on the plate portion are integrally formed of a synthetic resin material, sufficient lightness can be exhibited. In addition, when the plate portion and the plurality of reinforcing portions are integrally formed, an excellent moldability and a reduction in the number of parts can be advantageously achieved by adopting a mold forming method such as injection molding. The disadvantages of each of the pedestrian protection devices (1) and (2) are advantageously eliminated.

  However, when the present inventors conducted various tests on such a pedestrian protection device, and made various studies, it is clear that the following problems to be improved are inherent. It became.

  That is, in the pedestrian protection device of (c), in most cases, at least a part of the front end portion of the front portion of the plate portion is in a state of being rushed into the inside of the bumper disposed in the front portion of the vehicle. In such a fixed state, it is relatively fixed between the bumper entry portion of the front portion of the plate portion and the upper inner surface and lower inner surface of the bumper. Since there is a large gap, when the front end surface of the plate part comes into contact with the inner surface of the bumper due to the input of impact load caused by a pedestrian's collision with the front of the vehicle, An action force is generated that lifts up or pushes down. At this time, slip is caused between the front end surface of the plate portion and the inner surface of the bumper, and the plate portion is bent and deformed more easily and largely than other portions at the boundary portion between the front portion and the rear portion. Sometimes. In such a case, a delay in the rise of the impact load in the load characteristics is caused, and it is difficult to instantaneously reach the impact load to the target value. As a result, a high value is generated in the front portion of the plate portion. Although the rigidity can be ensured, it has become clear that there is a risk that an excellent impact performance that can instantly exert a sufficient reaction force against the impact load may not be obtained.

JP 2001-277963 A JP 2004-25976 A Japanese Patent Laid-Open No. 2004-203183 Japanese Patent Application Laid-Open No. 2002-264741

  Here, the present invention has been made in the background as described above, and the problem to be solved is that of the plate portion caused by the slip between the bumper inner surface generated when the impact load is input. Easy bending deformation at the boundary between the front part and the rear part is advantageously prevented, and excellent impact performance that can instantly exert a sufficient reaction force against impact load can be effectively secured. Another object of the present invention is to provide an improved structure of a vehicle pedestrian protection device. In addition, in the present invention, it is an object of the present invention to provide a mounting structure for a vehicle pedestrian protection device that can advantageously mount such a vehicle pedestrian protection device on a vehicle. .

  And in order to solve such a problem, the present inventors provided a projecting part projecting upward or downward at the bumper projecting part of the front part of the plate part in the process of repeating various studies, and The idea was to prevent slippage between the front end surface of the plate portion and the inner surface of the bumper by bringing the protrusion into contact with the inner surface of the bumper during input. As a result of further earnest research based on this idea, the present invention has been completed.

  In addition, in the said patent document 4, the structure which makes the upper end part of the front side wall part of the U-shaped reinforcement bead opening downward protrude upwards rather than the top-plate part is clarified. . However, there is no mention of the actions and effects obtained by adopting such a structure, and even when the impact is input, the upper end of the front side wall of the reinforcing bead contacts the inner surface of the bumper. There is no suggestion about preventing slippage between the front end surface of the plate portion and the inner surface of the bumper. This is because, in FIG. 4 of Patent Document 4 and the like, when the pedestrian protection device is deformed by impact input, the upper end of the front side wall of the reinforcing bead is not in contact with the inner surface of the bumper. It is very clear from what is shown.

Thus, in the present invention, in order to solve the problems relating to the pedestrian protection device for a vehicle described above, the gist of the invention is to extend in the front-rear direction of the vehicle to the lower portion of the front portion of the vehicle. The cantilevered plate portion fixed to the vehicle at the rear portion and the front portion of the plate portion projecting in at least one of the upper and lower directions in the vehicle longitudinal direction And a plurality of reinforcing portions made of beads or ribs integrally formed so as to be spaced apart from each other in the vehicle width direction, and at least a part of the front end portion of the front portion of the plate portion is By being fixed to the vehicle in a state where it is placed inside the bumper disposed at the front and not contacting the inner surface of the bumper , it collided with the front surface of the vehicle and contacted the bumper. The pedestrian's legs A vehicle pedestrian protection device configured to pay and protect at a front side portion of a plate portion, wherein at least one of an upper side and a lower side is provided on a front side portion of the plate portion that is placed inside the bumper. A plurality of projecting portions projecting to either one are fixed so as to be spaced apart from each other in the vehicle width direction in a form in which a gap that does not come into contact with the inner surface of the bumper due to vibration during vehicle travel is provided. In addition, each of the plurality of protrusions has a length in the vehicle width direction that is larger than the length in the vehicle front-rear direction, and a protrusion height at which the protruding end can be brought into contact with the inner surface of the bumper when an impact is input. The vehicle pedestrian protection device is characterized.

  In such a pedestrian protection device for a vehicle according to the present invention, the front end surface of the plate portion comes into contact with the inner surface of the bumper by the input of an impact load caused by a pedestrian collision with the front surface of the vehicle, and the plate. When an acting force is generated on the front part of the plate part that lifts it up or pushes it down, the portion of the plate part that enters the bumper (hereinafter referred to as the plate part) By causing the protrusion fixed on the bumper entry portion to contact the inner surface of the bumper, it is possible to advantageously prevent slippage between the front end surface of the plate portion and the inner surface of the bumper. As a result, due to the slip between the front end surface of the plate portion and the inner surface of the bumper, the plate portion is easier than the other portions at the boundary portion between the front portion and the rear portion and Such a large bending deformation can be effectively prevented.

  In the device of the present invention, since a plurality of protrusions are fixed to the bumper entry portion of the plate portion so as to be spaced apart from each other in the vehicle width direction, for example, one protrusion is provided. Unlike the case where it is provided so as to extend continuously over the entire width in the vehicle width direction with respect to the bumper entry portion of the plate portion, the small protrusion having a small size in the vehicle width direction is It is possible to fix only the minimum part necessary for preventing slippage between the front end surface of the rim and the inner surface of the bumper. Thereby, the usage amount of the material for forming the protrusions can be suppressed as much as possible, and the cost burden associated with the formation of the protrusions can be effectively reduced. In addition, since the protrusion is small, excellent handleability is exhibited. For example, when the protrusion is formed of a member different from the plate part, it is necessary to fix the protrusion to the plate part. The work burden can also be advantageously reduced.

  Furthermore, in the vehicle pedestrian protection device according to the present invention, the plurality of protrusions are positioned at intervals in the vehicle width direction, so that the length of each protrusion in the vehicle width direction is as described above. The dimensions are relatively small. Therefore, when the bumper inner surface is, for example, a concave curved surface that curves and extends in the vehicle width direction, the protrusion tip surface of the protrusion does not have a shape corresponding to the curved surface shape of the bumper inner surface. Between the protruding front end surface of the protrusion and the inner surface of the bumper, it is easy to enter the bumper intrusion portion of the plate portion into the bumper inside, or to avoid contact on both sides due to vibration during traveling of the vehicle. It is possible to form a gap that becomes “play”. Moreover, when the length of the protrusion in the vehicle width direction is greater than the length in the vehicle front-rear direction, the length of the protrusion in the vehicle front-rear direction is greater than the length in the vehicle width direction. Unlike the case where the inner surface of the bumper is, for example, a concave curved surface that curves and extends in the vehicle longitudinal direction, the protruding tip surface of the protrusion corresponds to the curved surface shape of the inner surface of the bumper. Easily place the bumper entry part of the plate part inside the bumper without forming the gap, so that a so-called “play” gap is formed between the protruding tip surface of the protrusion and the inner surface of the bumper. It can be made.

  In addition, according to one of the preferable aspects of the pedestrian protection apparatus for vehicles according to this invention, the said protrusion is protruded higher than the height of this reinforcement part in the protrusion direction of the said reinforcement part.

  Moreover, according to one of the desirable aspects of the pedestrian protection apparatus for vehicles according to this invention, it protrudes in the vehicle front side with respect to the front-end surface part of the protrusion end side of these several reinforcement parts, and is extended in the vehicle width direction. In addition, a flange portion that is placed into the bumper is provided inside, and the protrusion is fixed to the flange portion.

  Furthermore, according to another advantageous aspect of the pedestrian protection device for a vehicle according to the present invention, the protrusion is made of a plate material extending in the vehicle width direction and is integrally formed on a front portion of the plate portion. Is done.

  Furthermore, according to one of the preferred aspects of the pedestrian protection device for a vehicle according to the present invention, the support portion that supports the protrusion portion made of the plate material and prevents the protrusion from falling down due to an impact input, It is provided in the front part of the plate part.

  Moreover, according to one of the other preferable aspects of the pedestrian protection apparatus for vehicles according to this invention, it is an edge part site | part of the vehicle width direction both sides in the front side part of the said plate part, Comprising: The vehicle width of the front surface of a vehicle The protrusions are respectively fixed to portions located below the headlights arranged on both sides in the direction.

  And in this invention, in order to solve the subject concerning the above-mentioned pedestrian protection device for vehicles, it is arranged in the lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and the rear part The plate portion fixed to the vehicle and the front portion of the plate portion protrude in at least one of the upper side and the lower side, extend in the vehicle front-rear direction, and are spaced from each other in the vehicle width direction. A plurality of reinforcing portions made of beads or ribs integrally formed in a state, and at least a part of the front end portion of the front portion of the plate portion enters the inside of the bumper disposed in the front portion of the vehicle The pedestrian's legs that collide with the front of the vehicle and come into contact with the bumper by being fixed to the vehicle in the squeezed state are protected by paying at the front side portion of the plate portion. Vehicle pedestrian protection (A) the front end surface portion on the protruding end side of the plurality of reinforcing portions is provided so as to protrude toward the front side of the vehicle and extend in the vehicle width direction, and is inserted into the inside of the bumper. And (b) a protruding portion fixed to the flange portion having a protruding height that is higher than the height of the reinforcing portion in the protruding direction of the reinforcing portion. The gist of the pedestrian protection device for vehicles, which is characterized by being configured.

  Even in the pedestrian protection device for a vehicle according to the present invention, the front end surface of the plate portion comes into contact with the inner surface of the bumper by the input of the impact load caused by the collision of the pedestrian with the front surface of the vehicle, and the plate portion When a force is applied to the front part that lifts it up or pushes it down, the projection fixed to the bumper entry part of the plate part makes contact with the bumper inner surface. As a result, slippage between the front end surface of the plate portion and the inner surface of the bumper can be advantageously prevented. As a result, due to the slip between the front end surface of the plate part and the inner surface of the bumper, the plate part bends more easily and greatly than the other parts at the boundary part between the front part and the rear part. Such deformation can also be effectively prevented.

  Moreover, in such a device of the present invention, the protrusion protrudes higher in the protruding direction than the height of the reinforcing portion with respect to the flange portion integrally formed on the front end surface portion on the protruding front end side of the plurality of reinforcing portions. The leading end is fixedly provided with a projecting height that is positioned on the front side in the projecting direction from the projecting tip of the reinforcing portion. Therefore, for example, when integrally forming the pedestrian protection device for a vehicle by die molding, when the protrusion is integrally formed with the flange portion, when the protrusion is integrally formed on the forming surface of the reinforcing portion in the plate portion In addition, with the protrusion height of the protrusion sufficiently low, the protrusion tip of the protrusion can be positioned on the front side of the protrusion in the protrusion direction with respect to the protrusion tip of the reinforcing part. It is possible to reduce the depth of the molding cavity of the projection of the mold used for molding the person protection device. As a result, it is easy to manufacture such a mold, and not only can the manufacturing cost be reduced, but also the depth of the molding cavity of the mold protrusion can be reduced when molding the pedestrian protection device for vehicles. Due to the depth, it is possible to effectively prevent molding defects. Further, even when the protrusion is configured by a member different from the plate portion and is fixed to the flange portion, for example, unlike the case where the protrusion is fixed to the reinforcing portion, the protrusion is fixed. It can be extremely advantageously prevented that the strength is varied between the reinforced portion and the reinforced portion where the protrusion is not fixed, which adversely affects the impact performance.

  Further, the front end surface of the plate portion is in a state where the flange portion provided with such a protrusion portion is integrally formed with the front end surface portion of the reinforcing portion, and the bump portion enters the bumper into the bumper. The distance between the (front end surface of the flange portion) and the bumper inner surface facing it can be advantageously reduced. Thereby, shortening of the time from the contact of the pedestrian's leg to the bumper to the lower part of the pedestrian's leg can be realized more advantageously. As a result, the reaction force against the impact load caused by the contact of the pedestrian's leg with the bumper is instantly exhibited, so that the damage to the pedestrian and the leg is more effective. Can be reduced.

  According to one of the preferred embodiments of the pedestrian protection device for a vehicle according to the present invention, the protrusion is composed of a plurality of independent members, and the plurality of protrusions are formed on the flange portion. On the other hand, they are fixed at intervals in the vehicle width direction.

  Moreover, according to one of the other desirable aspects of the pedestrian protection apparatus for vehicles according to this invention, the said protrusion is comprised with the board | plate material extended in a vehicle width direction, and is integrally formed with respect to the said flange part. . In such a case, advantageously, a support portion that supports the protrusion made of the plate material and prevents the protrusion from falling due to an impact input is provided on the flange portion and / or the reinforcement portion. Will be.

  Furthermore, according to another preferable aspect of the pedestrian protection device for a vehicle according to the present invention, the plurality of the bumper entry portions of the front portion of the plate portion, which are placed inside the bumper, are provided on the bumper entry site. A second protrusion that protrudes in a direction opposite to the protruding direction of the reinforcing part and extends in the vehicle width direction is fixed.

  In addition, in the present invention, in order to solve the problem relating to the mounting structure of the vehicle pedestrian protection device, the characteristic vehicle pedestrian protection device as described above is provided at the lower part of the front portion of the vehicle. The plate portion is fixed to the vehicle in a state in which the protrusion is positioned below the headlights respectively disposed on both sides of the front surface of the vehicle in the vehicle width direction. The feature of the mounting structure for a vehicle pedestrian protection device is also a gist thereof.

  According to the mounting structure for a pedestrian protection device for a vehicle according to the present invention as described above, the vehicle is positioned below the headlight arrangement portion having a higher strength or rigidity than the front grill arrangement portion in the front portion of the vehicle. Easy bending deformation at the boundary part between the front part and the rear part of the plate part arranged inside the bumper part can be advantageously prevented. As a result, the pedestrian's leg that is in contact with the bumper by colliding with the portion of the headlight having such high strength or rigidity can be more reliably removed at the front portion of the plate portion. As a result, damage to the pedestrian and his / her legs can be further effectively reduced.

  As is apparent from the above description, in the vehicle pedestrian protection device according to the present invention, the front portion and the rear portion of the plate portion caused by the slip between the bumper inner surface that occurs when the impact load is input, Easy bending deformation at the boundary portion can be advantageously prevented. Therefore, it is possible to instantly exert a sufficient reaction force against the impact load, so that the excellent impact performance that can quickly bring up the impact load in the load characteristics and reach the target value more quickly is effective. It can be secured. As a result, the legs of the pedestrian that has collided with the front of the vehicle can be immediately and reliably paid to sufficiently protect the pedestrian at an even higher level.

  Further, according to the mounting structure of the vehicle pedestrian protection device according to the present invention, the leg portion of the pedestrian that has collided with the headlight arrangement portion having a relatively high strength or rigidity in the front portion of the vehicle can be more reliably obtained. Therefore, the protection of the pedestrian who collided with the front surface of the vehicle can be more effectively achieved.

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

  First, FIG. 1 and FIG. 2 show a top surface form and a cross-sectional form of a leg washer attached to the inside of a front bumper installed on the front surface of an automobile as an embodiment of a pedestrian protection apparatus according to the present invention. Are respectively schematically shown. As is clear from these drawings, the leg cleaning device 10 of the present embodiment has a substrate 12 as a plate portion.

  The board 12 is made of, for example, a synthetic resin material such as polypropylene or ABS resin, and extends in the vehicle width direction, that is, in the left-right direction of the automobile in the left-right direction in FIG. The dimension of the direction (hereinafter referred to as the left-right direction) is shorter than the vehicle width by a predetermined dimension, and the dimension in the vertical direction in FIG. As a whole, it is made of a thin flat plate having a substantially horizontally long rectangular shape that is sufficiently shorter than the dimension in the left-right direction.

  And in such a board | substrate 12, the rear side part which occupies substantially half of the back side shows a flat plate form, and the flat plate provided with the upper surface and lower surface which spread horizontally in the installation state to the motor vehicle of the leg payment apparatus 10 Part 14. In addition, a plurality of insertion holes 16 that penetrate the plate portion 14 in the plate thickness direction and through which a predetermined fixing bolt or the like can be inserted are provided at predetermined intervals in the left-right direction (here, 5).

  On the other hand, the front side portion of the substrate 12 excluding the flat plate portion 14 is a reinforcing structure portion 18 with increased strength. That is, in this reinforcing structure portion 18, a plurality (7 in this case) of reinforcing beads 20 as reinforcing portions are arranged at a certain distance in the left-right direction at an intermediate portion excluding both side portions in the left-right direction. In the state where they are positioned so as to be adjacent to each other, they are provided integrally, so that a sufficient reinforcing structure is provided.

  More specifically, as shown in FIGS. 1 to 4, the reinforcing bead 20 includes an extending portion 22 that extends continuously in the front-rear direction, and an end portion 23 that extends from the rear edge of the extending portion 22. Are integrally formed.

  And the extension part 22 of this reinforcement bead 20 has the upper side bottom wall part 24, the front side vertical wall part 26, and the two side wall parts 28 and 28 further integrally. The upper bottom wall portion 24 has a substantially narrow rectangular shape with a relatively small width, and is sandwiched between adjacent reinforcing beads 20 so as to be located on both sides of one reinforcing bead 20. And at a position above the upper surface of the flat plate portion 14 that is a continuous surface flush with the upper surface of the side portion 30 by a predetermined dimension, it is arranged so as to extend parallel to the upper surface and straight in the front-rear direction. ing.

  Further, the front vertical wall portion 26 has a width (size in the left-right direction) that is the same as the width of the upper bottom wall portion 24 and a length (size in the up-down direction) that is the same as the height of the side wall portion 28. It consists of a small, substantially rectangular flat plate and is integrally formed with the upper bottom wall portion 24 so as to extend vertically downward from its front end edge portion.

  Furthermore, each side wall part 28 consists of a long flat plate, and the distance between the upper bottom wall part 24 and the side part 30 from each of the edge part of the width direction both sides with respect to the upper bottom wall part 24, and It is integrally formed in a state where it is suspended with substantially the same height. Further, at the upper side portion of the front end edge, the front vertical wall portion 26 is integrally connected to the left and right end edge portions.

  On the other hand, the end portion 23 is an inclined plate that integrally extends from the rear end edge portion of the upper bottom wall portion 24 in the extending portion 22 to the height position of the flat plate portion 14 with a predetermined inclination angle. It has a form. Then, on the boundary line between the reinforcing structure portion 18 and the flat plate portion 14 in the substrate 12: a (indicated by a two-dot chain line in FIG. 1), the rear end edge portion is integrated with the front end edge portion of the flat plate portion 14. It is connected to the. In addition, the left and right end edge portions are integrally connected to the rear end edge portions of the side wall portions 28 in the extending portion 22.

  Thus, the reinforcing bead 20 is configured to have an overall shape of a longitudinal rectangular casing that protrudes upward and extends straight in the front-rear direction at the same height. In other words, it has a concave groove shape extending straight in the front-rear direction with a U-shaped cross-sectional shape in the vehicle width direction opening downward. A plurality of the reinforcing beads 20 are arranged in parallel in the middle part of the reinforcing structure 18 with the side portions 30 sandwiched therebetween and the side wall portions 28 facing each other with a certain distance in the left-right direction. ing.

  As described above, in the leg cleaning device 10, the plurality of reinforcing beads 20 are integrally formed with the reinforcing structure portion 18 of the substrate 12, so that the reinforcing structure portion 18, that is, the front side portion of the substrate 12, Sufficient rigidity is imparted, and the strength against bending deformation is advantageously increased in the reinforcing structure 18.

  Further, as is apparent from FIG. 1, in the leg cleaning device 10 of the present embodiment, in the reinforcing structure portion 18, the front end edge portion of the side portion 30 positioned between the adjacent reinforcing beads 20 is also vertically A front vertical wall 32 extending upward is integrally formed. The front vertical wall portion 32 is positioned side by side with the front vertical wall portion 26 provided at the front end portion of the extending portion 22 of each reinforcing bead 20 in the left-right direction. Thereby, the front surface of the front vertical wall portion 26 of each reinforcing bead 20 and the front surface of the front vertical wall portion 32 of each side portion 30 exhibit one continuous surface form in plan view, and such a continuous surface is It has a curved surface shape that protrudes forward, corresponding to the inner surface of a bumper cover of the front bumper described later. And the continuous curved surface which consists of the front surface of the front vertical wall part 26 of each such reinforcement bead 20 and the front surface of the front vertical wall part 32 of each side part 30 is made into the front end surface 34 of the board | substrate 12, and mentions later. As described above, under the installation state of the leg cleaning device 10 in the automobile, an impact generated by a pedestrian's collision with the front face of the automobile or the like can be input to the front end face 34.

  By the way, in such a leg cleaning device 10 of this embodiment, as shown in FIGS. 1 to 4, the upper end portion of the front end surface 34 of the substrate 12, that is, the extending portion 22 that becomes the protruding end of the reinforcing bead 20. A flange portion 36 that protrudes forward by a predetermined length and continuously extends in the left-right direction is integrally formed with respect to the end portion (upper end side portion) on the upper bottom wall portion 24 of the upper portion. The flange portion 36 has a constant width (protruding length forward), the same length as the length of the front end surface 34 (dimension in the vehicle width direction), and the thickness of the upper bottom wall portion 24 of the extending portion 22. The protruding tip surface 37 has a curved surface shape corresponding to the front end surface 34.

  At the front end portion of the upper surface of the flange portion 36, a plurality (four in this case) of plate-like projections 38 as protrusions are provided in the length direction of the flange portion 36 (the left-right direction as the vehicle width direction). They are integrally formed at a distance from each other. Further, each of the plate-like protrusions 38 protrudes further vertically upward with respect to the flange portion 36 integrally formed at the end portion on the upper bottom wall portion 24 side of the extending portion 22 that becomes the protruding end of each reinforcing bead 20. Accordingly, the reinforcing beads 20 are protruded higher than the height of the reinforcing beads 20 in the protruding direction of the reinforcing beads 20. That is, the protruding front end surface 39 of each plate-like protrusion 38 is positioned higher than the upper surface of the upper bottom wall portion 24 in the extending portion 22 of each reinforcing bead 20.

  Further, each of the plate-like protrusions 38 has a protruding tip surface 39 made of a flat surface, has a flat plate shape that curves along the front end surface 34, and the front side surface is the front end surface of the flange portion 36. It is positioned so as to be flush with each other. In addition, the thickness corresponding to the length in the vehicle front-rear direction is approximately the same as the thickness of the flange portion 36, while the length dimension corresponding to the length in the vehicle width direction is the thickness of the flange portion 36. The dimension is slightly larger than the width dimension of the side portion 30 which is sufficiently larger than the thickness dimension. As a result, the length in the vehicle width direction of each plate-like protrusion 38 is made sufficiently larger than the length in the vehicle front-rear direction.

  Two of the four plate-like protrusions 38 are arranged in front of the two side portions 30 and 30 on both sides of the reinforcing bead 20 located at the center in the length direction of the flange portion 36. On the other hand, the remaining two are respectively arranged in front of the side portions 30 arranged adjacent to each other from the center of the reinforcing beads 20 located at both ends of the flange portion 36 in the length direction. .

  Here, as will be described later, when the leg cleaning device 10 is installed in an automobile, the front end portion of the reinforcing structure portion 18 including the flange portion 36 and the front end side portion of each reinforcing bead 20 is the front bumper (42). In the bumper cover (48), the lower bumper (46) having a curved shape is placed inside the bumper cover (48) (see FIG. 5). In such a state, although not shown, each of the two plate-like protrusions 38 and 38 arranged at both ends of the flange portion 36 has a vertical position of the headlight disposed on the front surface of the automobile. It can be positioned below. In other words, here, the flange portions 36 are located at both ends in the longitudinal direction extending in the vehicle width direction and below the headlights disposed on both sides of the front surface of the automobile in the vehicle width direction. The plate-like projections 38 are respectively disposed.

  Further, the leg washer 10 has a protruding tip surface 37 (front end surface) of the flange portion 36 and a protruding tip surface 39 (projecting end) of each plate-like protrusion 38 under the installation state in the automobile as described above. A gap as small as possible is provided so as not to come into contact with the inner surface of the central portion of the lower projecting portion (46) of the bumper cover (48) and the lower surface of the upper portion due to vibrations generated during the traveling of the automobile. Thus, they are arranged to face each other (see FIG. 5). Thus, the protrusion height of the flange portion 36 from the front end surface 34 and the protrusion height of each plate-like protrusion 38 from the flange portion 36 are the flange portion 36 when an impact is input due to a pedestrian collision with the front surface of the automobile. The projecting tip surface 37 and the projecting tip surface 39 of each plate-like protrusion 38 are reliably secured to the inner surface of the central portion of the lower projecting portion (46) of the bumper cover (48) and the lower surface of the upper portion. The height is such that it can be contacted.

  Further, here, support ribs 40 as support portions protrude rearward from the respective rear surface portions of the center portion and both side end portions in the length direction (corresponding to the vehicle width direction) of each plate-like protrusion 38. In this way, each one is integrally formed. Each of the support ribs 40 has substantially the same thickness as that of the plate-like protrusion 38, and gradually increases in width toward the lower side (the protrusion height from the rear surface of the plate-like protrusion 38 gradually increases). It consists of a flat plate having Of the three support ribs 40, the support rib 40 a located at the center in the length direction of the plate-like protrusion 38 is integrally fixed to the upper surface of the flange portion 36, while the plate-like protrusion 38. Support ribs 40b and 40c, which are respectively located at both ends in the longitudinal direction, are integrally fixed to the upper surface of the flange portion 36 and the upper surface of the extending portion 22 of the reinforcing bead 20 so as to straddle them. As a result, when a shock is input to the leg cleaning device 10 due to the collision of a pedestrian with the front surface of the automobile, each plate-like protrusion 38 is supported by the three support ribs 40, and easy overturning can be prevented. It is like that.

  Thus, the leg washer 10 having such a structure is attached to the inside of the front bumper 42 installed on the front surface of the automobile in a conventionally known structure as shown in FIG. 5, for example. .

  That is, the front bumper 42 to which the leg wiper 10 is attached is provided with a bumper cover 48 having an upper protruding portion 44 and a lower protruding portion 46 that protrude from the front of the automobile under the installation state on the front of the automobile. is doing. Each of the upper protrusion 44 and the lower protrusion 46 has a curved shape in which the vertical longitudinal section is convex toward the front. The bumper cover 48 is installed, for example, with bolts fixed to the front grille 50 constituting the front portion of the automobile. In FIG. 5, 52 and 54 are a bonnet and a radiator, respectively.

  Then, a known shock absorbing structure 56 having rigidity smaller than that of the leg wiping device 10 is disposed on the inner side of the upper protrusion 44 of the bumper cover 48 (on the rear side of the vehicle) with the bumper line reinforcement 58 that is a rigid member. It is fixed between.

  On the other hand, the leg wiper 10 projects the front end portion of the reinforcing structure portion 18 of the substrate 12 provided with a plurality of reinforcing beads 20 from the front surface of the automobile, and places the front end portion in the lower protruding portion 46 of the bumper cover 48. On the other hand, the flat plate portion 14 of the substrate 12 is horizontally extended in the front-rear direction, and the upper surface of the rear end portion of the flat plate portion 14 is fixed to the front portion of the automobile so as to extend in the vehicle width direction. The radiator 54 is disposed in contact with the lower surface of the radiator support 60 that supports the radiator 54. Then, one fixing bolt 62 is inserted into each of the plurality of insertion holes 16 provided in the rear end portion of the flat plate portion 14 of the substrate 12, and each of the fixing bolts 62 is screwed into the radiator support 60. Thus, the flat plate portion 14 of the substrate 12 is fixed to the radiator support 60 at the rear end portion thereof.

  Thus, the leg cleaning device 10 is disposed in the lower part of the front surface of the automobile so as to extend horizontally in the front-rear direction, and the entire substrate 12 is parallel to the horizontal plane including the input direction of the impact load input to the bumper cover 48. It is extended to the position. Under such an arrangement state, the front end surface 34 of the reinforcing structure 18 is opposed to the inner surface of the lower protrusion 46 of the bumper cover 48 and is positioned so as to be orthogonal to the input direction of the impact load. Are arranged. Further, the flange portion 36 provided on the front end surface 34 and the front end portion of the reinforcing structure portion 18 including the front end side portion of each reinforcing bead 20 are located on the inner side of the lower protruding portion 46 of the bumper cover 48. The protruding tip surface 37 and the protruding tip surface 39 of each plate-like protrusion 38 provided on the flange portion 36 are arranged to face the inner surface of the lower protruding portion 46 with a slight gap therebetween. . Further, of the four plate-like projections 38, two plate-like projections 38 located on both sides in the length direction of the flange portion 36 are respectively disposed on both sides in the vehicle width direction on the front surface of the automobile. (Not shown) are positioned vertically below each other.

  Therefore, in the leg wiping device 10 of the present embodiment, the pedestrian collides with the front of the automobile under the installation state on the front of the automobile, and the pedestrian's leg portion 64 has the front bumper as shown in FIG. When the bumper cover 48 is brought into contact with or collided with the bumper cover 48, the upper protruding portion 44 and the lower protruding portion 46 of the bumper cover 48 are respectively located near the knee 66 and the shin 68 of the leg portion 64 of the pedestrian. You can come into contact. At this time, since the rigidity of the shock absorbing structure 56 is smaller than the rigidity of the leg cleaning device 10, the shock absorbing structure 56 is deformed more easily and in a larger amount than the leg cleaning device 10. It is done. As a result, the bumper cover 48 is configured such that the lower protruding portion 46 protrudes toward the front of the automobile from the upper protruding portion 44, so that the leg 64 collides with the bumper cover 48. Thus, the reaction force against the impact load generated in the leg wiping device 10 is applied to the portion near the shin 68 of the leg portion 64 of the pedestrian via the lower protruding portion 46 of the bumper cover 48. As a result, a portion near the shin 68 of the leg portion 64 of the pedestrian is paid off (scooped up) by the leg wiper 10 so that the pedestrian can fall down to the hood 52 side of the car. The bending of the pedestrian's knee 66 in an unreasonable direction is reduced, and the upper body of the pedestrian is placed on a bonnet or the like, and impact absorption is achieved by the bonnet or the like. Safety can be effectively achieved.

  In the leg cleaning device 10, as described above, the flange portion 36 is provided on the front end surface 34 of the reinforcing structure portion 18, and four plate-like protrusions 38 are provided on the flange portion 36. The projecting tip surfaces 37 and 39 of the flange portion 36 and the plate-like projections 38 are positioned with a slight gap with respect to the inner surface of the lower projecting portion 46 of the bumper cover 48, so that the impact input is performed. Sometimes it comes into contact.

  Therefore, as shown in FIG. 6, at the initial stage of impact input when the pedestrian's leg 64 contacts or collides with the lower protrusion 46 of the bumper cover 48, the protruding tip surface 37 of the flange 36 is The pedestrian's leg 64 is brought into contact with the bumper cover 48 via the lower protrusion 46. As a result, the leg washer 10 can instantly exert a reaction force against the impact load when an impact is input.

  At the same time, when the impact is input, the projecting tip surface 39 of each plate-like protrusion 38 comes into contact with the lower surface of the upper part of the lower projecting portion 46 of the bumper cover 48, so that the lower surface and the extension of each reinforcing bead 20 are extended. Each plate-like protrusion 38 is interposed between the projecting portion 22 and works like a stick. Then, by the input of the impact load, the protruding tip surface 37 of the flange portion 36 comes into contact with the inner surface of the lower protruding portion 46 of the bumper cover 48, and this is moved upward with respect to the reinforcing structure portion 18 of the substrate 12. When a lifting force is generated, it is advantageously prevented that slip occurs between the protruding tip surface 37 of the flange portion 36 and the inner surface of the lower protruding portion 46 of the bumper cover 48. As a result, the substrate 12 is bent at a boundary portion (a boundary line: a portion including a) between the reinforcing structure 18 and the flat plate portion 14 and a portion fixed to the radiator support 60 by an impact load input in the horizontal direction. And is bent and deformed so as to draw approximately S as a whole, and therefore, at the boundary portion between the reinforcing structure portion 18 and the flat plate portion 14, it can be bent and deformed more easily and larger than other portions. Can be effectively prevented. This also allows the leg washer 10 to instantly exert a reaction force against the impact load when an impact is input.

  Therefore, in the leg cleaning device 10 of the present embodiment, excellent impact performance that enables the impact load in the load characteristics to be quickly started up and reach the target value more quickly can be effectively ensured. . As a result, the legs of the pedestrian that has collided with the front of the vehicle can be immediately and reliably paid to sufficiently protect the pedestrian at an even higher level.

  In addition, in the leg cleaning device 10, the plate-like protrusion 38 is supported by the support rib 40 so that it can be prevented from being easily overturned at the time of impact input. The effect of preventing easy bending deformation can be more reliably exhibited, and thus the protection of the pedestrian's legs can be realized more advantageously and more reliably.

In the present embodiment, each plate-like protrusion 38 is provided on the flange portion 36 so as to protrude higher than the height of each reinforcing bead 20 in the protruding direction of each reinforcing bead 20. The protruding tip surface 39 is positioned higher than the upper end surface (upper surface of the upper bottom wall portion 24) of the extending portion 22 of each reinforcing bead 20, that is, on the front side in the protruding direction of the plate-like protrusion 38. For this reason, when the entire leg cleaning device 10 is integrally formed by die molding such as injection molding, for example, the plate-like protrusion 38 is higher than the reinforcing bead 20 on the substrate 12 without providing the flange portion 36. Unlike the case of integrally forming with the height, the protrusion height of the plate-like protrusion 38 is made sufficiently low, and the protrusion tip surface 39 of the plate-like protrusion 38 is made to protrude from the upper surface of the extending portion 22 of the reinforcing bead 20. Therefore, it is possible to sufficiently reduce the depth of the molding cavity of the plate-like protrusion 38 of the mold used for molding of the leg cleaning device 10. As a result, it is easy to manufacture a mold used for molding the mold of the leg cleaning apparatus 10, and not only can the manufacturing cost of the leg cleaning apparatus 10 be advantageously reduced, but also the mold is formed in such a mold. Since the depth of the molding cavity of the plate-like protrusion 38 is too deep, it is possible to effectively prevent a molding defect from occurring during mold molding.

  Even when the plate-like protrusion 38 is formed by a member different from the substrate 12 and is fixed to the flange portion 36, for example, unlike the case where the plate-like protrusion 38 is fixed to the reinforcing bead 20, It is extremely advantageous that there is a variation in strength between the reinforcing bead 20 to which the plate-like protrusion 38 is fixed and the reinforcing bead 20 to which the plate-like protrusion 38 is not fixed, which adversely affects the impact performance. Can be prevented.

  Further, in the present embodiment, since the plurality of plate-like protrusions 38 are provided so as to be spaced apart from each other in the length direction of the flange portion 36, for example, one plate-like protrusion 38 is provided with a flange. Unlike the case where the portion 36 is provided so as to continuously extend over the entire length in the longitudinal direction, a small plate-like protrusion 38 having a relatively short length is provided on the lower side of the bumper cover 48. Due to the contact with the inner surface of the protruding portion 46, it is possible to provide only the minimum necessary portion for preventing slippage between the inner surface and the protruding tip surface 37 of the flange portion 36. Thereby, the usage amount of the forming material of the plate-like protrusion 38 can be suppressed as much as possible, and the cost burden associated with the formation of the plate-like protrusion 38 can be effectively reduced. Further, even when the plate-like protrusion 38 is formed by a member different from the substrate 12 and fixed to the flange portion 36, the plate-like protrusion 38 is small, so that excellent handleability is exhibited. Thus, the work burden required for fixing the plate-like protrusion 38 to the flange portion 36 can be advantageously reduced.

  Moreover, in the leg wiping device 10 of the present embodiment, the length in the vehicle width direction of the plate-like protrusion 38 is made larger than the length in the vehicle front-rear direction. Therefore, even though the protruding tip surface 39 of the plate-like protrusion 38 is a flat surface that does not correspond to the inner surface of the lower protrusion 46 of the bumper cover 48 that curves in the vehicle longitudinal direction, the protrusion of the plate-like protrusion 38 is projected. While forming a gap as small as possible, that is, a so-called “play” gap between the front end surface 39 and the inner surface of the lower protrusion 46 so as to prevent mutual contact due to vibration during traveling of the automobile, In the plate-like protrusion 38, a protrusion height that can come into contact with the inner surface of the lower protrusion 46 when an impact is input can be advantageously ensured. Furthermore, when the length of the plate-like protrusion 38 in the vehicle width direction is relatively small, the inner surface of the lower protrusion 46 of the bumper cover 48 is a curved surface that curves in the vehicle width direction. Even in this case, similarly, it is as small as possible to prevent mutual contact due to vibration during traveling of the automobile between the protruding tip surface 39 of the plate-like protrusion 38 and the inner surface of the lower protruding portion 46. While forming a gap, a so-called “play” gap, it is possible to advantageously ensure a protruding height at which the plate-like protrusion 38 can come into contact with the inner surface of the lower protruding portion 46 when an impact is input. As a result, the necessity of making the projecting tip surface 39 of the plate-like projection 38 into a complicated shape corresponding to the inner surface of the lower projection 46 of the bumper cover 48 is advantageously eliminated. The overall shape design becomes extremely easy.

  Furthermore, in the leg cleaning device 10, the thickness of the plate-like protrusion 38 is a relatively thin thickness that is substantially the same as that of the substrate 12. The increase in the weight of the plate-like protrusion 38 can be suppressed as small as possible, and since the plate-like projection 38 is integrally formed with the flange portion 36 with respect to the substrate 12, the flange portion 36 and the plate-like shape are formed. It can also be advantageously prevented that the manufacturability of the entire leg cleaning device 10 is lowered due to the formation of the protrusions 38.

  In addition, in the present embodiment, the two plate-like protrusions 38 positioned at both ends in the longitudinal direction of the flange portion 36 are installed on both sides in the vehicle width direction under the installation state of the leg cleaning device 10 in the automobile. It is arranged below the headlight located. For this reason, when the pedestrian collides with both side portions in the vehicle width direction where the front grille 50 is disposed, which is stronger or more rigid than the center in the vehicle width direction, the leg washer 10 is made to function more reliably. The pedestrian and the leg portion 64 can be protected more effectively.

  The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention is not limited by the above description.

  For example, in the above-described embodiment, the protrusion is configured by the flat plate-like protrusion 38. However, the protrusion has a length in the vehicle width direction that is larger than the length in the vehicle front-rear direction and an impact input. As long as the protruding end has a protruding height that can be brought into contact with the inner surface of the bumper, the specific shape and form thereof are not particularly limited. Therefore, for example, the protrusion may be formed in a bead shape or a pin shape.

  It is also possible to form the protrusions separately from the plate part and fix them to the plate part.

  In addition, the protrusion is fixed to the plate part in a state where the protrusion part is located at the front side portion of the plate part that is inserted into the bumper and spaced from each other in the vehicle width direction. As long as it is fixed so that it protrudes in any one direction, for example, in addition to the fixed form by integral molding, any form such as welding, bonding, bolting, screwing, etc. may be used.

  Furthermore, the fixing position of the protrusion (plate-like protrusion 38) is not limited to the upper surface of the flange portion 36, and may be the lower surface thereof, and instead of the flange portion 36, or In addition, the reinforcing bead 20 as the reinforcing portion or the substrate 12 as the other plate portion may be used. In addition, even when it is fixed on the upper surface of the flange portion 36, the specific fixing position is of course not limited to the illustrated one.

  Further, the protrusion can be provided so as to protrude only upward, only downward, or both upward and downward. The projecting direction of the projecting portion is appropriately determined according to the direction of the acting force that acts on the plate portion either up or down when an impact is input.

  Furthermore, it goes without saying that the number of protrusions and the interval between the protrusions are not limited to those illustrated.

  Furthermore, the reinforcing portion may be constituted by a reinforcing rib integrally formed on the front portion of the plate portion in the form of a flat plate or the like extending in the vehicle longitudinal direction instead of or in addition to the illustrated reinforcing bead 20. .

  Even when the reinforcing portion is configured by the reinforcing beads 20, for example, all of the plurality of reinforcing beads 20 may be configured with a concave groove shape that opens upward, or the plurality of reinforcing beads. Some of 20 may be in the form of concave grooves that open downward, while the remaining reinforcing beads 20 may be in the form of concave grooves that open upward. In addition, as a cross-sectional shape in the vehicle width direction of the reinforcing bead 20, instead of or in addition to the illustrated U-shape, it is also possible to adopt a cross-sectional shape in the vehicle width direction of an arc shape or a curved shape or a polygonal shape. It is. Of course, the cross-sectional shapes in the vehicle width direction of the plurality of reinforcing beads 20 are not necessarily the same.

  Furthermore, it goes without saying that the number and position of the reinforcing portions such as the reinforcing beads 20 and the dimensions of each portion can be changed as appropriate.

  In the case where the reinforcing portion is configured by the reinforcing beads 20, the number of the arranged beads, that is, the number of the arranged in parallel in the left-right direction is increased by reducing the width of the reinforcing beads 20. If it does so, the rigidity of the board | substrate 12 will be improved. Therefore, the rigidity of the substrate 12 can be easily tuned by appropriately adjusting the number of the reinforcing beads 20 arranged.

  Moreover, in the said embodiment, although the whole leg payment apparatus 10 was formed using the synthetic resin material, the material of the leg payment apparatus 10 as this pedestrian protection apparatus is not limited to this at all. Instead, for example, a metal material that is relatively lightweight and excellent in formability, such as aluminum or an aluminum alloy, may be used.

  Furthermore, the installation structure of the protection device for pedestrians (leg-paying device 10) to the lower part of the front portion of the vehicle is not particularly limited to the illustrated structure. In other words, the vehicle portion and the fixing method to which the rear portion (flat plate portion 14) of the plate portion (substrate 12) is fixed can be variously changed.

  Moreover, in the said embodiment, the reaction force with respect to the impact load which arises in the leg cleaning apparatus 10 by the collision with the bumper cover 48 of the leg part 64 of a pedestrian is with respect to the part near the shin 68 of the leg part 64 of a pedestrian. The pedestrian leg 64 where the reaction force against the impact load is applied is the position where the leg wiper 10 is installed. It is a place that is appropriately changed depending on.

  In addition, the present invention provides a pedestrian protection device installed inside a bumper fixed to the front surface of the automobile, a structure for mounting the pedestrian protection device to the automobile, and a front surface of a vehicle other than the automobile. Of course, the present invention can be advantageously applied to both the vehicle pedestrian protection device installed inside the installed bumper and the structure of mounting the vehicle pedestrian protection device to the vehicle. It is.

  The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention can be implemented in various forms. Accordingly, various embodiments relating to various changes, modifications, and improvements of the present invention adopted based on the knowledge of those skilled in the art are all within the scope of the present invention without departing from the spirit of the present invention. It should be understood that it belongs.

  In the following, typical examples of the present invention will be shown to further clarify the features of the present invention, but the present invention is not limited by the description of such examples. It goes without saying.

  That is, first, as shown in FIG. 1 to FIG. 4, a leg washer having a structure according to the present invention was prepared and prepared by performing injection molding using polypropylene. And this was made into the product of this invention. In addition, the height of the reinforcement bead provided in the leg cleaning device of the present invention was 10 to 15 mm, and the width was 10 to 15 mm. The protruding height of the flange portion was 10 mm, and the protruding height of the plate-like protrusion was 20 mm.

  In addition, for comparison, a leg washer that is provided with a reinforcing bead separately from the leg washer of the present invention but is not provided with any flanges and plate-like protrusions was injection molded using polypropylene. Prepared by carrying out. And this was made into the conventional product. The height and width of the reinforcing beads provided in the conventional leg-paying device are the same as the dimensions of the leg-paying device according to the present invention.

  Then, each of the two types of leg payment devices of the present invention and the conventional product thus prepared is arranged inside the bumper cover of the front bumper fixed to the front surface of the actual vehicle (automobile) as shown in FIG. The two types of test vehicles were obtained, each of which was installed with a leg cleaning device having a different structure. After that, using these two types of test vehicles, a pedestrian collision test was performed assuming a pedestrian collision with the front bumper of the car, and the impact load input to each leg wiper at the time of the pedestrian collision The change with time was examined by a known method. The results are also shown in FIG. In addition, the pedestrian collision test with respect to each test vehicle was carried out by causing a dummy having a weight of 13.4 kg to collide with a front surface of the front bumper of each test vehicle at a speed of 40 km / h.

  As can be seen from FIG. 7, the impact load when using the leg-paying device of the present invention is faster than the impact load when using the conventional leg-paying device after the collision of the pedestrian. It is recognized that the load value has been reached. This clearly shows that the reaction force against the impact load can be instantaneously and sufficiently ensured in the leg cleaning device having the structure according to the present invention.

It is upper surface explanatory drawing which shows an example of the pedestrian protection apparatus which has a structure according to this invention. It is II-II sectional explanatory drawing in FIG. It is III-III cross-section expansion explanatory drawing in FIG. It is IV-IV cross-section expansion explanatory drawing in FIG. It is explanatory drawing which shows the state which installed the pedestrian protection apparatus shown by FIG. 1 in the vehicle. It is explanatory drawing which shows the deformation | transformation state of a pedestrian protection apparatus when a pedestrian collides with the front surface of the vehicle in which the pedestrian protection apparatus shown by FIG. 1 was installed. It is a graph which shows the time-dependent change of the impact load in each pedestrian protection apparatus obtained by conducting the pedestrian collision test with respect to the pedestrian protection apparatus which has a structure according to this invention, and the pedestrian protection apparatus which has a conventional structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Leg wiping device 12 Board | substrate 14 Flat plate part 18 Reinforcement part 20 Reinforcement bead 22 Extension part 36 Flange part 37,39 Projection front end surface 38 Plate-like protrusion 40 Support rib 42 Front bumper 48 Bumper cover

Claims (7)

A cantilevered plate portion that is disposed in a lower portion of the front portion of the vehicle so as to extend in the front-rear direction of the vehicle and is fixed to the vehicle at the rear portion, and above the front portion of the plate portion. A plurality of reinforcing portions made of beads or ribs that protrude in at least one of the lower portions, extend in the vehicle longitudinal direction, and are integrally formed in a state of being spaced apart from each other in the vehicle width direction; At least a part of the front end side of the front part of the part is fixed to the vehicle in a state where the part is placed inside the bumper disposed in the front part of the vehicle and does not contact the inner surface of the bumper. According to the vehicle pedestrian protection device configured to protect the pedestrian's legs that collided with the front of the vehicle and contacted with the bumper by paying at the front portion of the plate portion,
A plurality of protrusions that protrude at least one of the upper and lower sides of the front portion of the plate portion that is placed inside the bumper do not contact the inner surface of the bumper due to vibration during vehicle travel. In the form provided with a gap, while being fixed so as to be spaced apart from each other in the vehicle width direction, each of the plurality of protrusions has a length in the vehicle width direction larger than the length in the vehicle front-rear direction, A pedestrian protection device for a vehicle having a protruding height at which a protruding end can be brought into contact with an inner surface of a bumper when an impact is input.   The pedestrian protection device for a vehicle according to claim 1, wherein the protrusion is protruded higher than the height of the reinforcing portion in the protruding direction of the reinforcing portion.   A flange portion that protrudes toward the front side of the vehicle and extends in the vehicle width direction with respect to the front end surface portion on the protruding end side of the plurality of reinforcing portions is provided to be inserted into the inside of the bumper, and the flange portion On the other hand, the pedestrian protection device for a vehicle according to claim 1 or 2, wherein the protrusion is fixed.   The vehicle pedestrian according to any one of claims 1 to 3, wherein the protrusion is made of a plate material extending in a vehicle width direction and is integrally formed with a front portion of the plate portion. Protective device.   The pedestrian protection device for a vehicle according to claim 4, wherein a support portion that supports the protrusion portion made of the plate material and prevents the protrusion from falling due to an impact input is provided on a front side portion of the plate portion.   In the front side portion of the plate portion, the projecting portions are located at the end side portions on both sides in the vehicle width direction and below the headlights respectively disposed on both sides in the vehicle width direction on the front surface of the vehicle. The vehicle pedestrian protection device according to any one of claims 1 to 5, wherein the vehicle pedestrian protection device is fixed. A structure for attaching the pedestrian protection device for a vehicle according to any one of claims 1 to 6 to a lower part of a front portion of the vehicle,
A pedestrian protection device for a vehicle according to claim 1, wherein the plate portion is fixed to the vehicle in a state where the protrusion is positioned below headlights disposed on both sides of the front surface of the vehicle in the vehicle width direction. Mounting structure.

Images