JP5907193B2 - Front pop-up hood device for vehicles - Google Patents

Description

  The present invention relates to a vehicle front pop-up hood device that lifts a front end portion of a hood.

  As a front pop-up hood device for a vehicle that lifts the front end portion of the hood, there is one described in Patent Document 1 below. In this vehicle front pop-up hood device, a reinforcement is disposed near the outside in the vehicle width direction of the opening in the radiator support, and an actuator is fixed to the rear surface of the reinforcement via a bracket. And the striker provided in the vehicle width direction both side part in the front-end part of a hood lifts up by operating an actuator. In addition, there exist some which were described in the following patent documents 2-patent documents 4 as a front pop-up hood apparatus for vehicles which lifts up the front-end part of a hood. In addition, there are those described in Patent Documents 5 to 7 below as actuators fixed to the vehicle body via a bracket.

Japanese Patent Laid-Open No. 2004-249872 JP 2004-299614 A JP 2006-199179 A Special table 2006-518016 gazette JP 2009-202863 A JP 2012-071705 A JP2013-203240A

  By the way, in the vehicle front pop-up hood apparatus described in Patent Document 1, the fixing structure of the bracket and the reinforcement is as follows. That is, the bracket is formed with a pair of fixing portions arranged in the vehicle width direction, and the pair of fixing portions are fixed to the rear surface of the reinforcement.

  For this reason, when the actuator is operated, there is a possibility that the reinforcement is deformed so that the operating load of the actuator acts on the rear surface of the reinforcement and the upper end of the actuator swings in the vehicle front-rear direction. In this case, the striker connected to the actuator may not be able to operate to the set operating position.

  An object of the present invention is to provide a vehicle front pop-up hood device that can improve the lifting accuracy of a hood by an actuator in consideration of the above facts.

The front pop-up hood device for a vehicle according to claim 1 is provided on a radiator support side that constitutes both ends of the radiator support in the vehicle width direction, has an upper end connected to the radiator support upper, and a lower end connected to the radiator support lower. is an actuator to lift the vehicle width direction side portions of the front end portion of the hood by operating, integrated with the actuator, Bei example and a bracket fixed to at least two walls of the radiator support sides, wherein The radiator support side includes a first wall portion arranged with the vehicle width direction as the plate thickness direction, and a first wall portion extending outward from the rear end of the first wall portion with respect to the vehicle width direction and arranged with the vehicle longitudinal direction as the plate thickness direction. Two wall portions, and the wall surface is an outer surface in the vehicle width direction of the first wall portion and the second wall portion. It has been the front.

In the vehicle front pop-up hood apparatus according to the first aspect, the actuator is fixed to the radiator support side that constitutes both ends of the radiator support in the vehicle width direction via the bracket. The upper end portion of the radiator support side is connected to the radiator support upper, and the lower end portion of the radiator support side is connected to the radiator support lower. When the actuator is operated, both side portions in the vehicle width direction at the front end portion of the hood are lifted by the actuator.

  Here, brackets are fixed to at least two wall surfaces of the radiator support side. For this reason, when the actuator is operated, the operating load of the actuator can be received by the two wall surfaces of the radiator support side. Therefore, the deformation of the radiator support side during the operation of the actuator can be suppressed as compared with the case where the bracket is fixed to one wall surface of the radiator support side. As a result, since the vibration of the actuator during operation of the actuator is suppressed, the actuator can be favorably operated to the set operation position. As described above, the accuracy of lifting the hood by the actuator can be improved.

Moreover, the radiator support side is comprised including the 1st wall part and the 2nd wall part. The first wall portion is disposed with the vehicle width direction as the plate thickness direction, and a bracket is fixed to the outer surface of the first wall portion in the vehicle width direction. On the other hand, the second wall portion extends from the rear end of the first wall portion in the vehicle width direction and is disposed with the vehicle front-rear direction as the plate thickness direction, and a bracket is fixed to the front surface of the second wall portion. .

  For this reason, the 1st wall part and the 2nd wall part are connected with a bracket, and the closed section by the 1st wall part, the 2nd wall part, and a bracket is formed by plane view. Thereby, the actuator can be fixed to the radiator support side while reinforcing the radiator support side.

The front pop-up hood device for a vehicle according to claim 2 is the invention according to claim 1 , wherein a crash box fixed to the front end portion of the front side member is provided on the vehicle lower side of the bracket. A lower end of the bracket is fixed to the crash box.

In the vehicle front pop up hood apparatus according to claim 2, since the radiator support sides is connected to the crush box by a bracket, it is possible to further enhance the reinforcing effect against the radiator support sides.

The vehicle front pop up hood apparatus according to claim 3, in the invention described in claim 1, the vehicle lower side of the bracket, the front side members have been extended in the longitudinal direction of the vehicle, the lower end of the bracket Is fixed to the front end of the front side member.

In the vehicle front pop-up hood apparatus according to the third aspect , since the radiator support side is connected to the front side member by the bracket, the reinforcing effect on the radiator support side can be further enhanced.

  According to the vehicle front pop-up hood device of the first aspect, the accuracy of lifting the hood by the actuator can be improved.

Further , the actuator can be fixed to the radiator support side while reinforcing the radiator support side.

According to the front pop-up hood device for a vehicle according to claim 2 and claim 3 , the reinforcing effect for the radiator support side can be further enhanced.

It is the perspective view seen from the vehicle right diagonal front which shows the fixed state of the actuator arrange | positioned at the vehicle right side which comprises the vehicle front pop-up hood apparatus which concerns on this Embodiment. It is the front view seen from the vehicle front side which shows the whole front pop-up hood apparatus for vehicles shown by FIG. It is the perspective view seen from the vehicle right diagonal front which shows the arrangement | positioning state of the vehicle front pop-up hood apparatus shown by FIG. It is a front view which expands and shows the food lock apparatus shown by FIG. It is sectional drawing which expands and shows the inside of the actuator shown by FIG. FIG. 6 is a cross-sectional view (an enlarged cross-sectional view taken along line 6-6 in FIG. 1) viewed from the upper side of the vehicle, showing a fixed state of the actuator shown in FIG.

  Hereinafter, a vehicle front pop-up hood device 40 (hereinafter simply referred to as “pop-up hood device 40”) according to the present embodiment will be described with reference to the drawings. Note that an arrow FR appropriately shown in the drawings indicates the front of the vehicle, an arrow UP indicates the upper side of the vehicle, and an arrow RH indicates the right side of the vehicle.

  As shown in FIG. 3, the pop-up hood device 40 includes a hood lock device 42 fixed to the radiator support 20 of the vehicle (automobile) 10, and a pair of actuators 80 fixed to the radiator support 20 via a bracket 90. , Including. As shown in FIG. 2, the front end of the hood 12 of the vehicle 10 is lifted (popped up) by the pop-up hood device 40 when the vehicle 10 collides with a collision object such as a pedestrian. Hereinafter, the hood 12 and the radiator support 20 will be described first, and then the pop-up hood device 40 will be described.

(About the hood 12)
The hood 12 is formed in a substantially rectangular shape in a plan view of the vehicle, and covers an engine room (power unit chamber) ER provided in the front portion of the vehicle 10 from the upper side of the vehicle. The hood 12 is rotatably supported by hood hinges (not shown) fixed to the vehicle body at both ends in the vehicle width direction at the rear end.

  A hood striker 14 is provided at an intermediate portion in the vehicle width direction at the front end of the hood 12, and the hood striker 14 projects from the hood 12 to the vehicle lower side. Although not shown, the hood striker 14 is formed in a substantially U shape that is open to the upper side of the vehicle in a side view of the vehicle, and the open end of the hood striker 14 is coupled to the hood 12. And the lower end part of the food striker 14 is made into the latching | locking part 14A, and the latching | locking part 14A is extended in the vehicle front-back direction. Further, in a state where the hood 12 closes the engine room ER (a position indicated by a solid line in FIG. 2, this position is hereinafter referred to as a “closed position”), the hood striker 14 has a hood of a pop-up hood device 40 described later. Locked to the locking device 42. Thereby, the front-end part of the hood 12 is being fixed to the vehicle body.

(About the radiator support 20)
As shown in FIG. 3, the radiator support 20 is disposed on the vehicle lower side with respect to the front end portion of the hood 12 (not shown in FIG. 3), and is formed in a substantially rectangular frame shape when the vehicle is viewed from the front. A radiator 18 that cools the cooling water is supported by the radiator support 20.

  Both ends of the radiator support 20 in the vehicle width direction are constituted by a pair of radiator support sides 22, and the radiator support side 22 extends along the vehicle vertical direction. As shown in FIGS. 1 and 6, the radiator support side 22 includes a side wall portion 24 as a “first wall portion” arranged with the vehicle width direction as a plate thickness direction, and a rear end of the side wall portion 24. And a rear wall portion 26 as a “second wall portion” extending outward in the vehicle width direction. And the vehicle width direction outer side surface of the side wall portion 24 is a first fixed surface 24A as a “wall surface”, and the front surface of the rear wall portion 26 is a second fixed surface 26A as a “wall surface”. The first fixed surface 24A and the second fixed surface 26A are formed in a flat shape.

  As shown in FIG. 3, a front side member 30 having a substantially rectangular closed cross section extends in the vehicle front-rear direction on the vehicle rear side above the rear wall portion 26. Further, a crash box 32 is provided on the front side of the vehicle above the rear wall portion 26, and the crash box 32 has a substantially rectangular tube shape with the axial direction being the vehicle front-rear direction. The rear wall portion 26 is fixed to both the front side member 30 and the rear end portion of the crash box 32 so as to be sandwiched between them. In other words, the crash box 32 is fixed to the front end portion of the front side member 30 via the rear wall portion 26.

  Further, a radiator support upper 28 constituting the upper end portion of the radiator support 20 is stretched over the upper end portions of the pair of radiator support sides 22 along the vehicle width direction. Further, a radiator support lower 29 constituting the lower end portion of the radiator support 20 is bridged along the vehicle width direction at the lower end portions of the pair of radiator support sides 22.

  Further, a bumper reinforcement 34 constituting a skeleton member of a front bumper (not shown) is provided on the front side of the radiator support 20 in the vehicle. The bumper reinforcement 34 extends along the vehicle width direction, and both ends of the bumper reinforcement 34 in the vehicle width direction are fixed to the front end portion of the crash box 32.

(About pop-up hood device 40)
As shown in FIGS. 2 and 3, the pop-up hood device 40 includes a hood lock device 42, a pair of actuators 80 that are actuated at the time of collision with a collision object such as a pedestrian, and the radiator support 20 (FIG. 3). And a bracket 90 (see FIG. 3) for fixing to the reference). Each configuration will be described below.

(About the food lock device 42)
As shown in FIG. 4, the hood lock device 42 includes a lock base 44, a hood lock body 60, and a fixing plate 70. The lock base 44 is formed in a substantially rectangular plate shape with the vehicle front-rear direction as the plate thickness direction, and is fastened and fixed to the longitudinal intermediate portion of the radiator support upper 28 (see FIG. 3). Further, an escape recess 46 that is open to the upper side of the vehicle when viewed from the front is formed in the vehicle width direction central portion at the top of the lock base 44, and the locking portion 14 </ b> A of the hood striker 14 is disposed in the escape recess 46. ing. Further, a support pin 48 that rotatably supports a hood lock body 60 described later is provided on the right side of the vehicle at the upper part of the lock base 44. The support pin 48 is formed in a substantially cylindrical shape, and protrudes from the lock base 44 toward the vehicle front side with the vehicle front-rear direction as an axial direction. A guide hole 50 is formed in the left side of the vehicle at the upper part of the lock base 44. The guide hole 50 extends in the vertical direction of the vehicle and is curved in an arc shape with the center of the support pin 48 as the axis center. ing.

  The hood lock body 60 is disposed on the vehicle front side of the lock base 44 and is formed in a substantially rectangular shape when viewed from the front. The hood lock body 60 is rotatably supported by a support pin 48 of the lock base 44 at the right end of the vehicle. As a result, the hood lock body 60 is rotatable relative to the lock base 44 in the vehicle vertical direction (in the directions of arrows A and B in FIG. 4) with the support pin 48 as the rotation center.

  Further, a guide pin 62 is provided at the left end of the hood lock body 60 in the vehicle. The guide pin 62 is formed in a columnar shape, and the hood lock body 60 extends from the hood lock body 60 in the axial direction of the vehicle. It protrudes to the rear side. The guide pin 62 is slidably inserted into the guide hole 50 of the lock base 44.

  Furthermore, a locking recess 64 is formed in the upper portion of the hood lock body 60 at a position in front of the vehicle with respect to the clearance recess 46 of the lock base 44. The locking recess 64 is formed in a groove shape opened to the upper side of the vehicle, and is set such that the width dimension of the locking recess 64 increases as it goes toward the upper side of the vehicle. And in the closed position of the hood 12, the latching | locking part 14A of the hood striker 14 is arrange | positioned in the lower end part of the latching recessed part 64. FIG.

  The hood lock body 60 is provided with a latch 66. And the latching part 14A of the food striker 14 arrange | positioned in the lower end part of the latching recessed part 64 is hold | maintained by the latch 66. FIG. In addition, a cable (not shown) is connected to the latch 66, and the holding state of the locking portion 14A by the latch 66 is released by operating the cable.

  The fixed plate 70 is formed in a substantially fan shape when viewed from the front, and is disposed on the vehicle front side of the hood lock body 60. The fixed plate 70 is rotatably connected to the lock base 44 at a base end portion thereof by a support pin 72 having an axial direction in the vehicle front-rear direction.

  In addition, a curved portion in the outer peripheral portion of the fixed plate 70 is a contact surface 74, and the contact surface 74 is formed in an arc shape with the center of the support pin 72 as an axis center. The contact surface 74 is in contact with a columnar fixing pin 52 provided on the hood lock body 60. In this state, the hood lock body 60 faces the vehicle upper side (the direction of arrow A in FIG. 4). The rotation is restricted.

  Further, one end of the cable 76 is locked to the fixing plate 70, and the other end of the cable 76 is locked to a link mechanism 79 (see FIG. 2) engaged with an actuator 80 described later. When the cable 76 is pulled to the left side of the vehicle, the fixing plate 70 is rotated counterclockwise when viewed from the front, and the contact state between the contact surface 74 of the fixed plate 70 and the fixing pin 52 is released. It has become. As a result, the hood lock body 60 is configured to be pivotable to the upper side of the vehicle (in the direction of arrow A in FIG. 4), and the hood 12 can be lifted at the front end portion.

  The above-described hood lock main body 60 is formed with an escape portion 68 so that when the hood lock main body 60 rotates, the fixing plate 70 and the support pins 72 and the hood lock main body 60 do not interfere with each other. Yes. The fixed plate 70 is urged clockwise by a spring 78 in a front view.

(About the actuator 80)
As shown in FIG. 1, the actuator 80 is formed in a substantially cylindrical shape with the vehicle vertical direction as an axial direction, and is disposed in the vicinity of the radiator support side 22. Specifically, the actuator 80 is disposed on the vehicle width direction outside of the side wall portion 24 of the radiator support side 22 and on the vehicle front side of the rear wall portion 26 of the radiator support side 22, and the crash box 32 and the front side member 30. It is arranged on the vehicle upper side. Thus, the first fixed surface 24A of the side wall portion 24 and the second fixed surface 26A of the rear wall portion 26 are arranged so as to straddle the actuator 80. The actuator 80 is fixed to the radiator support side 22 via a bracket 90 described later.

  As shown in FIG. 5, the actuator 80 has an actuator body 82 formed in a substantially cylindrical shape. The actuator 80 has a substantially bottomed cylindrical cylinder portion 84 opened to the lower side of the vehicle, and the upper portion of the actuator body 82 is inserted into the cylinder portion 84. When the actuator 80 is in an inoperative state, the upper end portion of the cylinder portion 84 is disposed slightly spaced from the hood 12 toward the vehicle lower side (see FIG. 2).

  The actuator body 82 is integrally formed with an enlarged diameter portion 82A protruding outward in the radial direction of the actuator body 82. The outer diameter of the enlarged diameter portion 82A is larger than the outer diameter of the actuator body 82. Is set. A groove 82Aa is formed along the circumferential direction of the actuator main body 82 in the outer peripheral portion of the enlarged diameter portion 82A. An O-ring 86 is attached to the groove 82 </ b> Aa, and the space between the enlarged diameter portion 82 </ b> A and the cylinder portion 84 is sealed by the O-ring 86.

  Further, in the actuator main body 82, a gas generator 88 is fitted in the middle portion in the longitudinal direction. The gas generator 88 includes a squib (ignition device), and the gas generator 88 is filled with a gas generating agent. The gas generator 88 is electrically connected to the ECU 36 (see FIG. 2), and is configured to operate under the control of the ECU 36. When the gas generator 88 is activated, the gas generated by the gas generator 88 is supplied into the actuator body 82. Thereby, the cylinder part 84 is raised by the gas pressure of the actuator body 82 and the upper end part of the cylinder part 84 comes into contact with the hood 12, so that the front end part of the hood 12 is in the lifting position (indicated by a two-dot chain line in FIG. 2). It is configured to be lifted to a position where

  A wire harness 89 connected to the gas generator 88 is routed inside the actuator body 82 in the radial direction. The wire harness 89 is led out from the lower end of the actuator body 82 to the outside of the actuator 80. Yes. The actuator body 82 is filled with a resin material on the radially inner side.

  Further, as shown in FIG. 2, a link mechanism 79 is engaged with the cylinder portion 84 of the actuator 80 disposed on the left side of the vehicle with respect to the hood lock device 42. The other end of the cable 76 is locked. And if the cylinder part 84 raises at the time of the action | operation of the actuator 80, the link mechanism 79 will act | operate and the cable 76 will be pulled to the vehicle left side.

  Further, as shown in FIG. 3, a collision detection sensor 38 and a collision prediction sensor (not shown) are electrically connected to the ECU 36 (not shown in FIG. 3). The collision detection sensor 38 has a substantially elongated pressure tube 38A with the vehicle width direction as a longitudinal direction, and the pressure tube 38A is disposed adjacent to the front surface of the bumper reinforcement 34. In addition, pressure sensors 38B are provided at both ends in the longitudinal direction of the pressure tube 38A, and a signal corresponding to a pressure change in the pressure tube 38A is output to the ECU 36 by the pressure sensor 38B. The collision detection sensor 38 may be constituted by a pressure chamber or an optical fiber. On the other hand, as a collision prediction sensor, for example, a pre-crash sensor that predicts a collision with a collision object such as a pedestrian using a millimeter wave radar or a stereo camera can be applied. The ECU 36 determines whether to operate the actuator 80 based on signals input from the collision detection sensor 38 and the collision prediction sensor.

(About bracket 90)
As shown in FIG. 3, the pair of brackets 90 are for fixing the actuator 80 to the radiator support 20 as described above, and are respectively provided in the vicinity of the radiator support side 22 corresponding to the actuator 80. Yes. Since the pair of brackets 90 are symmetrically configured, the bracket 90 disposed on the right side of the vehicle will be described, and the description of the bracket 90 disposed on the left side of the vehicle will be omitted.

  As shown in FIGS. 1 and 6, the bracket 90 is made of a steel plate. The bracket 90 includes a bracket main body 92 coupled to the actuator 80 described above, a first fixing portion 94, a second fixing portion 96, and a third fixing portion 98.

  The bracket main body 92 is bent into a substantially L shape in plan view and extends in the vehicle vertical direction. The bracket main body 92 is disposed radially outside the actuator main body 82 in plan view, and the bent portion of the bracket main body 92 is substantially arcuate in plan view so as to follow the outer peripheral surface of the actuator main body 82. Is formed. The actuator body 82 is coupled to the bent portion of the bracket body 92 by welding or the like. Thereby, the actuator 80 is integrated with the bracket 90.

  The first fixing portion 94 extends from the inner end in the vehicle width direction at the upper portion of the bracket main body portion 92 toward the front side of the vehicle, and on the first fixed surface 24A of the side wall portion 24 in the radiator support side 22 with the vehicle width direction as the plate thickness direction. Are arranged along. In addition, a pair of upper and lower first fastening holes (not shown) are formed through the first fixing portion 94 in the vehicle width direction, and bolts B1 are inserted into the first fastening holes, respectively. Then, the bolt B1 is screwed into a weld nut WN1 provided on the inner side surface in the vehicle width direction of the side wall portion 24, whereby the first fixing portion 94 is fastened and fixed to the first fixed surface 24A of the side wall portion 24. ing.

  The second fixing portion 96 extends outward from the rear end of the upper portion of the bracket main body portion 92 in the vehicle width direction, and is formed on the second fixed surface 26A of the rear wall portion 26 of the radiator support side 22 with the vehicle longitudinal direction as the plate thickness direction. Are arranged along. Moreover, a pair of upper and lower second fastening holes (not shown) are formed through the second fixing portion 96 in the vehicle front-rear direction, and bolts B2 are inserted into the second fastening holes, respectively. Then, the bolt B2 is screwed into a weld nut WN2 provided on the rear surface of the rear wall portion 26, whereby the second fixing portion 96 is fastened and fixed to the second fixed surface 26A of the rear wall portion 26. .

  Thereby, in the radiator support side 22, a portion for fixing the first fixing portion 94 (that is, the first fixed surface 24A) and a portion for fixing the second fixing portion 96 (that is, the second fixed surface 26A) are It is comprised so that it may become a different wall surface. Furthermore, since the side wall part 24 and the rear wall part 26 of the radiator support side 22 are connected by the bracket 90, the closed section 100 (see FIG. 6) by the side wall part 24, the rear wall part 26, and the bracket 90 is seen in plan view. Is formed.

  The third fixing portion 98 extends from the lower end of the bracket main body 92 to the side opposite to the actuator main body 82 in plan view, and is disposed along the upper wall 32A of the crash box 32 with the vehicle vertical direction as the plate thickness direction. . A pair of third fastening holes (not shown) are formed through the third fixing portion 98 in the vehicle vertical direction, and bolts B3 are inserted into the third fastening holes, respectively. Further, a weld nut (not shown) corresponding to the third fastening hole is provided on the lower surface of the upper wall 32A of the crash box 32, and the bolt B3 is screwed into the weld nut, so that a third fixing portion is provided. 98 is fastened and fixed to the upper wall 32A (see FIG. 1). Thus, the rear end portion of the crash box 32 is connected to the radiator support side 22 by the bracket 90.

  Next, the operation and effect of this embodiment will be described.

  When the pop-up hood device 40 is in a non-operating state, the hood 12 is disposed at the closed position, and the engine room ER is closed by the hood 12 (see the hood 12 indicated by a solid line in FIG. 2). From this state, when a collision object such as a pedestrian collides with the vehicle 10 in front of the vehicle, the collision detection sensor 38 detects that the collision object collided with the front and a signal is output from the collision detection sensor 38 to the ECU 36. The ECU 36 determines whether or not the vehicle front pop-up hood device 40 should be operated based on the input signal.

  When the ECU 36 determines that the pop-up hood device 40 should be operated, the gas generator 88 of the actuator 80 is operated under the control of the ECU 36, and gas is supplied into the actuator body 82. When gas is supplied into the actuator main body 82, the cylinder portion 84 is pressed by the gas pressure in the actuator main body 82, and the cylinder portion 84 is axially moved (raised) along the axial direction of the actuator main body 82 to the upper side of the vehicle. To do. When the cylinder portion 84 moves in the axial direction toward the upper side of the vehicle, the cable 76 of the pop-up hood device 40 is pulled to the left side of the vehicle in conjunction with the movement of the cylinder portion 84. As a result, the fixed plate 70 is rotated, and the hood lock body 60 can be rotated to the upper side of the vehicle. That is, the front end of the hood 12 can be lifted.

  Further, when the cylinder portion 84 moves in the axial direction toward the upper side of the vehicle, the upper end portion of the cylinder portion 84 comes into contact with the hood 12 and lifts the front end portion of the hood 12 toward the upper side of the vehicle. Thereby, the front-end part of the food | hood 12 is lifted to a lifting position (refer the dashed-two dotted line of FIG. 2).

  Here, the bracket 90 integrated with the actuator 80 is fixed to two wall surfaces (the first fixed surface 24 </ b> A and the second fixed surface 26 </ b> A) in the radiator support side 22. Specifically, the first fixing portion 94 of the bracket 90 is fixed to the first fixed surface 24A of the radiator support side 22, and the second fixing portion 96 of the bracket 90 is fixed to the first target portion of the radiator support side 22. It is fixed to a second fixed surface 26A different from the fixed surface 24A. Thereby, compared with the case where the 1st fixing | fixed part 94 and the 2nd fixing | fixed part 96 are fixed to one wall surface of the radiator support side 22, a deformation | transformation of the radiator support side 22 at the time of the action | operation of the actuator 80 can be suppressed.

  That is, if the first fixing portion 94 and the second fixing portion 96 of the bracket 90 are fixed to the first fixed surface 24A (or the second fixed surface 26A) of the radiator support side 22 as in the prior art, The first fixing portion 94 and the second fixing portion 96 are arranged side by side on the first fixed surface 24A (or the second fixed surface 26A). When the actuator 80 is operated, the operating load of the actuator 80 is input only to the first fixed surface 24A (or the second fixed surface 26A), so that the operating load is received by one wall surface of the radiator support side 22. It will be. Thereby, for example, the side wall portion 24 (or the rear wall portion 26) fixes the first fixing portion 94 and the second fixing portion 96 so that the upper end portion of the actuator 80 swings in the vehicle width direction (or the vehicle front-rear direction). There is a possibility that it will be deformed from the starting point.

  On the other hand, in the present embodiment, the wall surfaces (the first fixed surface 24A and the second fixed surface 26A) with different portions for fixing the first fixing portion 94 and the second fixing portion 96 in the radiator support side 22 are different. Has been. For this reason, when the actuator 80 is operated, the operating load of the actuator 80 is input to the first fixed surface 24A and the second fixed surface 26A. That is, the operating load of the actuator can be received by different wall surfaces in the radiator support side 22. Therefore, it is possible to suppress the deformation of the radiator support side 22 when the actuator 80 is operated, as compared with the case where the first fixing portion 94 and the second fixing portion 96 are fixed to one wall surface of the radiator support side 22. As a result, vibration of the upper end portion of the actuator 80 and the like are suppressed when the actuator 80 is operated, so that the cylinder portion 84 of the actuator 80 can be raised (operated) to the set operating position. As described above, the lifting accuracy of the hood 12 by the actuator 80 can be improved.

  Further, the first fixed surface 24A constitutes the vehicle width direction outer side surface of the side wall portion 24 in the radiator support side 22, and the second fixed surface 26A constitutes the front surface of the rear wall portion 26 in the radiator support side 22. . For this reason, by fixing the bracket 90 to the radiator support side 22, the closed section 100 is formed by the side wall portion 24, the rear wall portion 26, and the bracket 90. Accordingly, the actuator 80 can be fixed to the radiator support side 22 while reinforcing the radiator support side 22.

  Further, the radiator support side 22 can be reinforced by the bracket 90 without using a member for reinforcing the radiator support side 22 separately. Thereby, the weight reduction of the vehicle 10 can be achieved, suppressing the cost increase of the vehicle 10. FIG.

  Further, by reinforcing the radiator support side 22 with the bracket 90, the torsional rigidity of the entire radiator support 20 can be increased.

  Further, the third fixing portion 98 of the bracket 90 is fastened and fixed to the upper wall 32A of the crash box 32. For this reason, since the upper part of the radiator support side 22 is connected with the crash box 32 by the bracket 90, the reinforcement effect with respect to the radiator support side 22 can be made still higher.

  Further, by connecting the upper portion of the radiator support side 22 to the crash box 32 via the bracket 90, it is possible to suppress the deformation of the radiator support side 22 so that the upper end portion of the radiator support side 22 is displaced in the vehicle front-rear direction. . As a result, for example, the steering stability of the vehicle 10 when the vehicle 10 is traveling can be improved. That is, when the vehicle 10 travels, vertical force is input to the front side member 30 and the front end of the front side member 30 tends to be displaced in the vehicle vertical direction. At this time, the radiator support side 22 tends to be deformed so that the upper end portion of the radiator support side 22 is displaced in the vehicle front-rear direction. On the other hand, in this Embodiment, since the upper part of the radiator support side 22 is connected with the crash box 32 by the bracket 90 as above-mentioned, the above deformation | transformation of the radiator support side 22 can be suppressed. Thereby, since the displacement to the vehicle up-down direction in the front-end part of the front side member 30 at the time of driving | running | working of the vehicle 10 is suppressed, the steering stability of the vehicle 10 can be improved.

  Further, the first fixing portion 94 and the second fixing portion 96 of the bracket 90 are formed at the upper end portion of the bracket 90, and the third fixing portion 98 of the bracket 90 is formed at the lower end portion of the bracket 90. That is, the bracket 90 is configured to be fixed at the upper end portion and the lower end portion thereof. Thereby, it is possible to effectively suppress the shake of the upper end portion of the actuator 80 when the actuator 80 is operated.

  In the present embodiment, the radiator support side 22 includes the side wall portion 24 and the rear wall portion 26, but the shape of the radiator support side 22 is not limited thereto. For example, the flat cross-sectional shape of the radiator support side 22 is formed into a substantially hat shape that is opened outward in the vehicle width direction, and the open end of the radiator support side 22 is coupled to the side wall of the front side member 30 in the vehicle width direction. You may comprise as follows. In other words, in the radiator support side 22, a front wall portion extending from the front end of the side wall portion 24 to the outside in the vehicle width direction is further added, and the vehicle width direction outer end portions of the front wall portion and the rear wall portion 26 are connected to the front side member 30. You may comprise so that it may couple | bond with the side wall of the vehicle width direction inside. In this case, the second fixing portion 96 of the bracket 90 is fastened and fixed to the front wall portion or the rear wall portion 26 of the radiator support side 22, and the third fixing portion 98 is fastened and fixed to the upper wall of the front side member 30. Also good.

  Further, in the present embodiment, the crash box 32 is fixed to the front end portion of the front side member 30 via the rear wall portion 26 of the radiator support side 22, but the crash box 32 may be omitted. That is, you may comprise so that the front-end part of the front side member 30 may be fixed to the vehicle width direction both ends of the bumper reinforcement 34. FIG. In this case, similarly to the above, for example, the flat cross-sectional shape of the radiator support side 22 is formed into a substantially hat shape opened to the outside in the vehicle width direction, and the open end portion of the radiator support side 22 is formed on the front side member 30. You may comprise so that it may couple | bond with the side wall inside a vehicle width direction. Further, in this case, the third fixing portion 98 of the bracket 90 may be fastened and fixed to the upper wall of the front side member 30. Even in this case, the reinforcing effect on the radiator support side 22 can be further enhanced, and the steering stability when the vehicle 10 is traveling can be improved.

  In the present embodiment, the first fixed surface 24A and the second fixed surface 26A of the radiator support side 22 are formed in a flat shape, but the first fixed surface 24A and the second fixed surface 26A Some may protrude. For example, in the side wall part 24 of the radiator support side 22, a part for fixing the first fixing part 94 of the bracket 90 may be protruded outward in the vehicle width direction by drawing or the like.

  In the present embodiment, the vehicle width direction central portion at the front end of the hood 12 is locked by the hood lock device 42 of the pop-up hood device 40. It may replace with this and you may comprise so that the vehicle width direction both ends in the front-end part of the hood 12 may be locked by the pop-up hood apparatus 40. FIG.

  Further, in the present embodiment, the actuator 80 includes the actuator main body 82 and the cylinder portion 84 in which the upper portion of the actuator main body 82 is inserted. Instead of this, the actuator 80 may be constituted by an actuator main body 82 and a piston rod accommodated in the actuator main body 82.

12 Hood 20 Radiator support 22 Radiator support side 24 Side wall (first wall)
24A First fixed surface (wall surface)
26 Rear wall (second wall)
26A Second fixed surface (wall surface)
30 Front side member 32 Crash box 40 Front pop-up hood device 80 for vehicle 80 Actuator 90 Bracket

Claims (3)

Car width direction at the front end of the hood by configuring the both ends of the radiator support in the vehicle width direction and operating on the radiator support side where the upper end is connected to the radiator support upper and the lower end is connected to the radiator support lower An actuator that lifts both sides,
A bracket integrated with the actuator and fixed to at least two wall surfaces of the radiator support side;
Bei to give a,
The radiator support side is arranged with a first wall portion arranged with the vehicle width direction as the plate thickness direction and a vehicle longitudinal direction extending from the rear end of the first wall portion with the vehicle longitudinal direction as the plate thickness direction. And a second wall portion,
A front pop-up hood device for a vehicle, wherein the wall surface is an outer surface in the vehicle width direction of the first wall portion and a front surface of the second wall portion . A crash box fixed to the front end of the front side member is provided on the vehicle lower side of the bracket,
The front pop-up hood device for a vehicle according to claim 1, wherein a lower end of the bracket is fixed to the crash box. On the vehicle lower side of the bracket, a front side member extends in the vehicle front-rear direction,
The front pop-up hood device for a vehicle according to claim 1, wherein a lower end of the bracket is fixed to a front end portion of the front side member.

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