• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a liftable hood device for a vehicle, a front actuator is provided to operate prior to rear actuators. As a result, the rear actuating devices are not actuated at the time of the beginning of the operation of the front actuating device. Therefore, at an initial stage of actuation of a hood by the front actuator, a torque around a center of gravity of the hood due to the operating rear actuators is not applied to the hood. Thus, until the rear actuators operate, a front end portion of the hood can be lifted by the front actuator without being affected by a rotational moment that is generated at the hood. Therefore, the front end portion of the hood can be raised at an early stage.
    公开号:FR3017099A1
    申请号:FR1550381
    申请日:2015-01-16
    公开日:2015-08-07
    发明作者:Yasuhiro Hara；Hiromi Hikichi；Shinichi Shibasaki
    申请人:Toyota Motor Corp；
    IPC主号:
    专利说明:

    [0001] BACKGROUND The present invention relates to a liftable hood device for a vehicle that lifts the front end portion and the rear end portion of a hood. PRIOR ART As a liftable hood device for a vehicle, there are structures that raise the front end portion of a hood and the two end portions in a transverse direction of the vehicle at the rear end portion. of the bonnet (see, for example, Japanese Patent Application Laid-open Patent Application (JP-A) No. 2009-505063) and JP-A No. 2006- In addition, in the retractable hood device for a vehicle of the aforementioned patent document 2, front and rear actuators which raise the hood operate simultaneously, and the amount of lift of the Actuation of the rear side is intended to be greater than the amount of lifting of the front-side actuating device.It is to be noted that, as liftable hood devices for a vehicle, there are the devices of the patent document 3. 5 (JP-A No. 2005-028931), Patent Document 4 (JP-A No. 2005-041391), Patent Document 5 (JP-A No. 2004131037), Patent Document 6 (JP-A A No. 2006-224890), Patent Document 7 (Japanese Patent No. 5342534), and the like. SUMMARY OF THE INVENTION However, in the retractable hood device for a vehicle of the aforementioned patent document 2, when the lifting force of the rear-side actuating devices is intended to be large in order to bring the the amount of lifting of the rear side actuating devices to be greater than the amount of lifting of the front side actuating device, there are cases in which the lifting of the front end portion of the hood is delayed. That is, when the lifting force of the rear side actuators is intended to be large, the hood begins to rotate about its own center of gravity so that the front end portion the hood is moved to the lower side of the vehicle as seen in side view. Therefore, there are cases in which the lifting of the front end portion of the hood is delayed. Due to the circumstances described above, an object of the present invention is to provide a liftable hood device for a vehicle that can lift the front end portion of a hood at an early stage. A liftable hood device for a vehicle according to a first aspect of the present invention has: rear end side actuating devices which, in operation, lift the two end portions in the transverse direction of the vehicle at the level of a rear end portion of a hood; and an actuator for the front end side which, in operation, lifts a front end portion of the hood, and which is provided to operate prior to the actuators on the rear end side. In the tiltable hood device for a vehicle according to the first aspect of the present invention, since the rear end side actuating devices operate, the two end portions in the vehicle transverse direction at the portion rear end of the hood are raised by the actuating devices of the rear end side. On the other hand, because the front end side operation device operates, the front end portion of the hood is lifted by the actuator on the front end side. On the other hand, when the rear end side actuating devices operate, as viewed in side view, a rotational moment about the center of gravity of the hood is applied to the hood, and the front end portion of the hood hood starts to be moved to the lower side of vehicle. Here, the front end side actuating device is provided to operate before the actuators on the back end side.
    [0002] Therefore, until the rear end side actuating devices operate, the front end portion of the hood can be lifted by the actuator on the front end side without being affected by the moment. rotation mentioned above which is generated at the hood. Therefore, the front end portion of the hood can be raised at an early stage. A liftable hood device for a vehicle according to a second aspect of the present invention has: rear end side actuating devices which, in operation, lift the two end portions in the vehicle transverse direction at the a rear end portion of a hood; and an actuating device of the front end side which, in operation, raises a front end portion of the hood, wherein lifting forces of the actuating device of the front end side and actuating devices at the rear end side are provided such that, as viewed from the side view, a moment of rotation about a center of gravity which is applied to the hood due to the end-side actuating device The front that lifts the hood is the same or larger than a torque around the center of gravity that is applied to the hood because of the actuators on the rear end side that lift the hood. In the retractable hood device for a vehicle according to the second aspect of the present invention, due to the rotational moment about the center of gravity which is applied to the hood by the actuating device of the front end side which is the As well as the rotational moment about the center of gravity that is applied to the hood by the actuators on the rear end side, the hood is raised to translate to the upper side of the vehicle. As a result, a movement of the front end portion of the hood towards the lower side of the vehicle when the hood is lifted can be omitted. In addition, a movement towards the lower vehicle side of the front end portion of the hood at the time of the hood lift can also be suppressed by making the rotation torque around the center of gravity being applied to the hood. the hood by the actuating device of the front end side is larger than the torque around the center of gravity which is applied to the hood by the actuating devices of the rear end side. Therefore, the front end portion of the hood can be raised at an early stage. A liftable hood device for a vehicle according to a third aspect of the present invention has: rear end side actuating devices which, in operation, lift the two transverse direction end portions of the vehicle at the level of a rear end portion of a hood; and a front end side actuating device which, in operation, raises a front end portion of the hood, and which is provided to operate prior to the actuators of the rear end side, wherein lifting forces of the front end side actuating device and rear end side actuating devices are provided such that, as viewed from the side view, a moment of rotation about a center of gravity that is applied to the hood due to the actuating device on the front end side that raises the hood is the same or greater than a torque around the center of gravity that is applied to the hood of the makes actuators on the rear end side that lift the hood. In the tiltable hood device for a vehicle according to the third aspect of the present invention, in addition to the front end side actuating device which is provided to operate prior to the end-side actuating devices. back, the rotational moment around the center of gravity that is applied to the hood because the actuating device of the front end side is operating is intended to be the same or greater than the torque around the center of gravity that is applied to the hood because the actuating devices of the rear end side operate. Therefore, in the invention according to the third aspect also, the front end portion of the hood can be raised at an early stage. In a retractable hood device for a vehicle according to a fourth aspect of the present invention, in the invention according to the first or third aspect, the actuating devices of the rear end side are provided to operate after completion. operation of the actuating device of the front end side. In the retractable hood device for a vehicle according to the fourth aspect of the present invention, the front end portion of the hood can be lifted by the actuating device of the front end side without being affected, for example, by vibrations that appear at the hood due to actuators on the rear end side that raise the hood. In the retractable hood device for a vehicle according to the fifth aspect of the present invention, in the invention according to the first or third aspect, the rear end side actuating devices are provided to operate immediately prior to the end of the operation of the actuating device 20 of the front end side. In the retractable hood device for a vehicle according to the sixth aspect of the present invention, in the invention according to the first or third aspect, operating start times of the front end side actuating device and actuating devices on the rear end side are provided such that a vibration phase generated at the hood due to operation of the actuating device at the front end side, and a vibration phase generated at the the level of the hood due to the operation of the actuating devices of the rear end side, are offset relative to each other.
    [0003] In the liftable hood device for a vehicle according to the seventh aspect of the present invention, an operation start of the front end side operation device and a start of operation of the rear end side operation devices are planned so as to be simultaneous. In a retractable hood device for a vehicle according to an eighth aspect of the present invention, in the invention according to the second or third aspect, a ratio of a lifting force of the actuating device of the front end side and a lifting force of the rear end side actuating devices is provided to be an inverse ratio of a ratio of a distance, in a longitudinal vehicle direction, from a hood center of gravity to a front end side actuating device as viewed from the side and a distance, in the longitudinal direction of the vehicle, from the center of gravity of the hood to the actuating devices of the rear end side . In the retractable hood device for a vehicle according to the eighth aspect of the present invention, the rotational moment about the center of gravity of the hood which is applied to the hood due to the actuating device of the front end side which raises the front end portion of the hood, and the rotational moment about the center of gravity of the hood that is applied to the hood due to the actuators on the rear end side that lift the rear end portion of the hood may be provided so as to be in equilibrium. As a result, the hood can be raised efficiently. In a retractable hood device for a vehicle according to a ninth aspect of the present invention, in the invention according to one of the first to eighth aspects, an amount of lifting of the hood by the actuating devices of the rear end side. is intended to be larger than a quantity of bonnet lift by the actuating device of the front end side. In the retractable hood device for a vehicle according to the ninth aspect of the present invention, the amplitude of vibrations which occur at the hood due to the operation of the actuating device of the front end side, and the amplitude of the vibrations that occur at the hood due to actuating devices of the rear end operating side, are different. As a result, the aforementioned vibrations that appear at the hood are applied to cancel each other out, and the vibrations that are generated at the hood as a whole once the hood is removed. raised can therefore be suppressed (the amplitude can be reduced). In the retractable hood device for a vehicle according to the tenth aspect of the present invention, in the invention according to any one of the first to ninth aspects, an amount of lifting of the hood by the end-side actuating devices. rear and a hood lift amount by the front end side actuating device are provided such that an amplitude of vibration, which is generated at the hood due to the operation of the actuator on the side front end, and an amplitude of the vibrations, which are generated at the hood due to actuating devices of the rear end side that function, differ. In an upright hood device for a vehicle according to an eleventh aspect of the present invention, in an invention according to the first aspect, lifting forces of the actuating device of the front end side and actuating devices of the the rear end are provided such that, as viewed from the side view, a moment of rotation about a center of gravity which is applied to the hood due to the actuating device of the front end side which raises the hood is the same or larger than a rotational moment about the center of gravity that is applied to the hood due to the actuators on the rear end side that lift the hood. Advantageous Effects of the Invention As described above, according to the liftable hood device for a vehicle of the present invention, the front end portion of a hood can be raised at an early stage. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing the overall structure of a liftable hood device for a vehicle according to a first embodiment.
    [0004] Fig. 2 is an enlarged side view which is viewed from an inner side in a transverse direction of the vehicle and shows, in an enlarged manner, a lifting mechanism portion which is disposed on the right side of the vehicle at the level of a rear liftable hood device shown in FIG. 1. FIG. 3 is an enlarged side view which is viewed from the inside in the transverse direction of the vehicle and shows an actuated state of the lift mechanism portion shown in FIG. 2.
    [0005] FIG. 4 is a front view which is seen from a front side of the vehicle and schematically shows a front liftable hood device shown in FIG.
    [0006] FIG. 5 is a front view showing, in an enlarged manner, a hood locking device shown in FIG. 4. FIG. 6 is a sectional view showing, in an enlarged manner, the interior of FIG. FIG. 7 is a side sectional view which is seen from a left side of the vehicle and schematically shows a state in which a hood shown in FIG. 1 closes a motor compartment. . Fig. 8 is an explanatory drawing for explaining lifting forces and rotational moments which are applied to the cover shown in Fig. 7. Fig. 9A is a graph for explaining a movement of a hood at the moment of rotation. lifting the hood in a comparative example. Fig. 9B is a graph for explaining the movement of the hood when the hood 20 is lifted in the first embodiment. DETAILED DESCRIPTION OF THE INVENTION (First Embodiment) A liftable hood device 30 for a vehicle according to a first embodiment is hereinafter described using the drawings. Note that the FRONT arrow that is appropriately shown in the drawings indicates the front side of the vehicle, the UP arrow indicates the top side of the vehicle, and the RIGHT arrow indicates the right side of the vehicle. As shown in FIG. 1, the liftable hood device 30 for a vehicle is intended to lift (lift) a hood 12, which closes an engine compartment (engine unit chamber) ER which is provided at the level of the vehicle. front portion of a vehicle (automobile) 10 at the time of a collision with an obstacle such as a pedestrian or equivalent. The liftable hood device 30 for a vehicle is structured to include a rear lift hood device 40 which raises the rear end portion of the hood 12, and a front lift hood device 80 which raises the hood front end portion. 12. Hereinafter, the hood 12 will be described first, and the rear tiltable hood device 40 and the front tiltable hood device 80 will then be described. As shown in Fig. 7, the hood 12 is structured to include an outer hood panel 14 and an inner hood panel 16. The outer hood panel 14 structures the portion on the exterior vehicle side of the hood 12 (the opposite side to the ER engine compartment), and structure a vehicle design surface 10. The hood inner panel 16 structures the engine compartment ER side portion of the hood 12. In addition, the final end portions of the hood inner panel 16 are connected by a crimping treatment to the final end portions of the hood outer panel 14 (see FIG. 2). As a result, the hood outer panel 14 is reinforced by the hood panel 16. Hood striker member 18 is provided at the transverse direction intermediate portion of the hood front end portion 12. hood striker 18 protrudes from the hood 12 Inward of A level of the vehicle The lower side of the vehicle. This cowl striker member 18 is formed in a substantially U-shape which opens toward the vehicle top side as seen in a side view, and the open end portion of the cowl striker member 18. is connected to the hood 12. In addition, the lower end portion of the cowl striker member 18 is an anchor portion 18A, and the anchor portion 18A extends in the longitudinal vehicle direction. Moreover, in the state in which the cover 12 closes the engine compartment ER (the position represented by the solid lines in FIG. 7, and hereinafter this position is called "closed position"), the waste element Hood 18 is anchored to a hood latch 82 of the front lift hood device 80 which is described later. As a result, the front end portion of the hood 12 is attached to the vehicle body. In addition, as shown in Fig. 2, a bulge portion 20 is formed at the rear end side (the back side side) of the hood inner panel 16. The bulge portion 20 is bulged toward the lower side of the vehicle (engine compartment side ER) with respect to the inner cowl panel 16. A lower wall 20A of the bulging portion 20 is disposed substantially parallel to the outer cowl panel 14 as seen in a sectional view. next to. (Rear Tilt Hood Device 40) As shown in FIG. 1, the rear tiltable hood device 40 is structured with the main parts thereof which are a pair of tilt mechanism parts 42. The mechanism parts The lifting members 42 are arranged at the two vehicle transverse direction end portions of the rear end portion of the hood 12 respectively, and the left and right lifting mechanism portions 42 are structured in the same manner. Therefore, in the following description, the lifting mechanism portion 42 which is disposed at the right side of the vehicle is described, and a description of the lifting mechanism portion 42 which is disposed on the left side of the vehicle is omitted. As shown in FIG. 2 and FIG. 3, the lift mechanism portion 42 is structured to include a hood hinge 44 that supports the hood 12 so that the hood 12 can open and close, and a rear actuator 60 which serves as a "rear end side actuator" that operates at the time of a collision with an obstacle such as a pedestrian or the like. (Hood hinge 44) The hood hinge 44 is structured to include a hinge base 46 which is attached to the vehicle body, a swing arm 48 which is rotatably connected to the hinge base 46, and a hinge arm 46. hinge 54 which is attached to the hood 12. The hinge base 46 is formed as a substantially L-shaped plate rearwardly as viewed in a vehicle front view, and is formed into a shape. substantially V-shaped (see Figure 3 for details) which opens to a front side obliquely upwardly of vehicle in a side view seen from the inside in the transverse direction of the vehicle. Specifically, the hinge base 46 is structured to include a mounting portion 46A that is arranged such that the vertical direction of the vehicle is the plate thickness direction, and a support portion 46B that extends to the side upper end of the vehicle from the end portion of the transverse direction inner side of the vehicle of the mounting portion 46A. In addition, the mounting portion 46A is attached to an upper surface portion 22A of a hood upper side 22 which is a structural member of the vehicle body side. It should be noted that the upper hood sides 22 are provided at both sides of a hood which extends along the transverse direction of the vehicle between the rear end side of the hood 12 and the end portion. bottom of a windshield.
    [0007] The oscillating arm 48 is disposed on the inner side in the transverse direction of the vehicle of the hinge base 46, and is formed substantially in the form of a triangular plate upside down as seen in the side view. Specifically, the swing arm 48 is, as seen in the side view, formed substantially in the form of a triangular plate upside down whose vertices are a lower end portion 48A, a front end portion 48B which is disposed on the front side of the vehicle and the upper vehicle side of the lower end portion 48A, and a rear end portion 48C disposed on the rear side of the vehicle and the upper side of the vehicle of the portion lower end 48A. In addition, the rear end portion 48C of the swing arm 48 is hingedly connected to the upper end portion of the support portion 46B of the hinge base 46 by a hinge pin 50 whose axial direction is the transverse direction of the vehicle. As a result, the oscillating arm 48 is rotatably structured in the vertical direction of the vehicle (the arrow direction A and the arrow direction B in FIG. 2) with the center of rotation which is the hinge axis. 50. In addition, a link shaft 52, which rotatably supports the lower end portion of the rear actuator 60 which is described later, is provided at the lower end portion 48A of the swingarm. 48. The connecting shaft 52 is formed in a substantially solid cylindrical shape, and protrudes towards the transverse inner side of the vehicle of the oscillating arm 48 with the transverse direction of the vehicle which is its axial direction.
    [0008] The hinge arm 54 is disposed on the vehicle transverse direction inner side of the swing arm 48, and extends substantially along the longitudinal vehicle direction. Specifically, the hinge arm 54 has a sidewall portion 54A that is disposed substantially parallel to the swingarm 48. The leading end portion of this sidewall portion 54A hingeably connected to the front end portion 48B of the oscillating arm 48 by a hinge axis 56 whose axial direction is the transverse direction of the vehicle. As a result, the hinge arm 54 is rotatably structured relative to the oscillating arm 48 in the vertical vehicle direction (the arrow direction C and the arrow direction D in Fig. 2) with the axis of rotation. hinge 56 which is the center of rotation. In addition, the hinge arm 54 has an upper wall portion 54B. The upper wall portion 54B is formed to be folded toward the transverse inner side of the vehicle of the upper end portion of the side wall portion 54A, and extends substantially in the longitudinal vehicle direction along of the bottom wall 20A of the bulge portion 20 of the cap 12. Non-illustrated mounting holes are formed to pass through the top wall portion 54B, and solder nuts (not shown) are attached on the bottom wall 20A of the bulge portion 20 so as to correspond to these mounting holes. In addition, the upper wall portion 54B is attached to the hood 12 due to unillustrated hinge bolts that are inserted from the lower vehicle side into these mounting holes and screwed with the weld nuts. As a result, the rear end portion of the hood 12 is connected to the vehicle body by the hood hinges 44. In addition, in an inactive state of the rear actuators 60 which is described later, a relative rotation hinge arms 54 relative to the oscillating arms 48 is limited by the rear actuators 60. Therefore, the hood 12 opens and closes the engine compartment ER due to hinge arms 54 and swing arms 48 which rotate with the hinge axes 50 which are the centers of rotation.
    [0009] On the other hand, a connecting shaft 58, which is intended to connect a piston rod 72 of the rear actuator 60 which is described later, is provided in one piece with the rear end portion of the side wall 54A at hinge arm 54. Link shaft 58 is formed in a substantially solid cylindrical shape, and protrudes inwardly in the transverse direction of the vehicle from rear wall portion 54A. (Rear actuator 60) As shown in Fig. 2, the rear actuator 60 is disposed on the inner side in the transverse direction of the vehicle of the oscillating arm 48, and extends so as to span between the the rear end portion of the hinge arm 54 and the lower end portion 48A of the swing arm 48. That is, the rear actuator 60 is inclined toward the rear side of the vehicle while steering. towards the upper side of the vehicle, as viewed from the side. In addition, the rear actuator 60 has a cylinder 62, and the piston rod 72 which is received in the cylinder 62. The cylinder 62 has a cylinder main body 64 which is structured from a pipe element which forms a substantially cylindrical tube shape. The cylinder main body 64 is connected to the swing arm 48 via a mounting bracket 66. This mounting bracket 66 is formed in a substantially elongate shape whose length direction is the axial direction of the cylinder main body 64 as viewed from the side, and is attached to the main cylinder body 64. In addition, the lower end portion of the mounting bracket 66 is rotatably supported at the link shaft 52 of the arm As a result, the lower end portion of the rear actuator 60 is rotatably structured relative to the swing arm 48. A head portion 68 which is substantially cylindrical tube-shaped is inserted into the upper end portion of the cylinder main body 64. In addition, a gas generating device 70 is provided at the lower end portion of the cylinder main body 64. gas generation device 70 is formed in a substantially solid cylindrical shape, and is mounted in the cylinder main body 64 so as to fill the lower end portion of the cylinder main body 64. The gas generating device 70a a primer (ignition device), and a gas generating agent fills the interior of the gas generating device 70. In addition, the gas generating device 70 is electrically connected (see Fig. 1) to an ECU 26 (an element that can be interpreted as a "control unit" in the broad sense). The gas generating device 70 is structured to operate due to control of the ECU 26. In addition, when the gas generating device 70 is operating, the primer generates heat and the generation of gas burns, and thereby the gas generated by the gas generating device 70 is delivered inside the cylinder main body 64. It should be noted that, as shown in FIG. ECU 26 is electrically connected to a collision detection sensor 28 and a collision prediction sensor (not shown). The collision detection sensor 28 is disposed on the opposite surface side of a front bumper 29 which is disposed at the front end portion of the vehicle. In addition, the collision detection sensor 28 is structured to include a pressure tube 28A that is substantially elongated and whose length direction is the transverse direction of the vehicle, and pressure sensors 28B that deliver to the ECU 26. , signals corresponding to changes of pressure inside the pressure tube. It should be noted that the collision detection sensor 28 may be structured by a pressure chamber or an optical fiber. In addition, for example, a pre-crash sensor, which is disposed at the center portion in the transverse direction of the vehicle of the front bumper 29 and which predicts a collision with an obstacle such as a pedestrian or equivalent using a millimeter-wave radar or a stereoscopic camera, or the like, can be used as a collision forecast sensor.
    [0010] On the other hand, as shown in FIG. 2, the piston rod 72 has a piston portion 74 which is housed inside the cylinder main body 64. The piston portion 74 is formed in a cylindrical shape substantially solid, and is disposed coaxially with the cylinder main body 64. It should be noted that the area between the piston portion 74 and the cylinder main body 64 is sealed by an O-ring or equivalent not shown.
    [0011] In addition, the piston rod 72 has a stem portion 76. The stem portion 76 is formed as a rod having a round cross-section, and extends outwardly toward the upper vehicle side from the piston portion 74 along the axial direction of the cylinder main body 64. In addition, the stem portion 76 is inserted through the interior of the main portion 68, and the upper end portion of the portion of the rod 76 protrudes toward the upper vehicle side relative to the cylinder 62. A rod connecting portion 78 is integrally provided with the upper end portion of the rod portion 76. The rod connecting portion 78 is formed in a substantially cylindrical tube shape, the axial direction of which is the transverse direction of the vehicle. The connecting shaft 58 of the hinge arm 54 is inserted into this rod connection portion 78. As a result, the upper end portion of the rod portion 76 is connected to the hinge arm 54 in a rotatable manner. relative to the hinge arm 54.
    [0012] In addition, when gas generated by the gas generating device 70 is delivered within the cylinder main body 64, due to the gas pressure within the cylinder main body 64, the piston portion 74 (the piston rod 72) rises along the axial direction of the cylinder main body 64. As a result, the rear end portion of the hinge arm 54 is raised towards the upper vehicle side by the piston rod. 72, and the hood 12 is disposed in a raised position (the position shown by the broken lines in Figure 3 and Figure 7). It should be noted that, at this point, the hinge arm 54 is turned towards the upper vehicle side (the arrow direction side C in FIG. 2) with respect to the oscillating arm 48 with the hinge axis 56 which is the center of rotation. In addition, in a manner related to the rotation of the hinge arm 54, the swing arm 48 is turned towards the upper vehicle side (the arrow direction side A in FIG. 2) with respect to the hinge base 46 with the hinge axis 50 which is the center of rotation. In addition, the rear actuator 60 has a lock mechanism not shown. At the moment when the rear actuator 60 is operating and the piston rod 72 raises the hood 12 to the raised position, the retraction of the piston rod 72 is limited by the locking mechanism. (Front Tilt Hood Device 80) As shown in FIG. 1 and FIG. 4, the front tilt hood device 80 is structured to include the bonnet lock 82 and a pair of front actuators. left-right 110 which serve as "front-end-side actuators" that operate at the time of a collision with an obstacle such as a pedestrian or equivalent. (Hood locking device 82) The hood locking device 82 is provided at the lower vehicle side with respect to the transverse intermediate portion of the vehicle of the front end portion of the hood. Hood latch 82 is structured to include a latch base 84, a hood latch main body 92, and a latch plate 100 (see Fig. 4).
    [0013] As shown in Fig. 5, the latch base 84 is formed substantially in the form of a rectangular plate having the plate thickness direction in the longitudinal direction of the vehicle, and is fixed to the upper member of a radiator support not shown. A clearance recess 86, which opens towards the upper side of the vehicle as seen in front view, is formed in the central part in the transverse direction of the vehicle of the upper part of the bolt base 84. The part of Anchor 18A of the cowl striker member 18 is disposed within the recess recess 86. In addition, a support pin 88, which rotatably supports the hood latch main body 92 which is later described. , is provided at the right-hand vehicle portion of the upper portion of the lock base 84. The support pin 88 is formed in a substantially solid cylindrical shape, and protrudes from the lock base 84 to the side vehicle front with the longitudinal vehicle direction which is its axial direction. In addition, a guide hole 90 is formed in the left-hand vehicle portion of the upper portion of the lock base 84. The guide hole 90 extends in the vertical vehicle direction, and is bent in the form an arc whose axial center is the center of the support pin 88. The hood lock main body 92 is disposed on the vehicle front side of the lock base 84, and is formed in a substantially rectangular shape as seen in front view. This hood lock main body 92 is, at the right-hand side end portion of the vehicle, rotatably supported by the support pin 88 of the lock base 84. As a result, the main body The hood latch 92 can rotate in the vertical vehicle direction (the arrow direction E and the arrow direction F in FIG. 5) relative to the latch base 84 with the support pin 88 which is the center of the latch. rotation. In addition, a guide pin 94 is provided at the vehicle left side end portion of the hood latch main body 92. The guide pin 94 is formed in a solid cylindrical shape, and protrudes towards the vehicle rear side from the hood lock main body 92 with the longitudinal direction of the vehicle which is its axial direction. In addition, the guide pin 94 is slidably inserted into the guide hole 90 of the latch base 84. Furthermore, an anchor recess 96 is formed in the upper portion of the hood latch main body. 92, in a position which is on the front side of the vehicle with respect to the clearance recess 86 of the lock base 84. This anchoring recess 96 is formed as a groove which opens towards the upper side of the vehicle, and the width of the anchoring recess 96 is provided to become larger toward the vehicle upper side. Moreover, in the closed position of the hood 12, the anchoring portion 18A of the cowl striker member 18 is disposed in the lower end portion of the anchoring recess 96. In addition, a latch 98 is provided at the hood latch main body 92. The anchor portion 18A of the hood striker member 18, which is disposed within the lower end portion of the anchor recess 96, is In addition, a non-illustrated cable is connected to the latch 98, and the state in which the anchor portion 18A is held by the latch 98 is canceled by this cable which is actuated. The mounting plate 100 is formed in a substantially fan shape as viewed in front view, and is disposed at the vehicle front side of the hood latch main body 92. The mounting plate 100 is at the its proximal end portion, rotatably connected to the lock base 84 by a support axis 102 whose axial direction is the longitudinal direction of the vehicle. In addition, the portion which is bent at the outer peripheral portion of the attachment plate 100 is a stop surface 104, and the abutment surface 104 is formed as an arc whose axial center is the center of the support pin 102. This abutment surface 104 abuts against an attachment pin 99 which is cylindrical solid and is provided at the cap lock main body 92. In this state, a rotation of the lock main body hood 92 towards the upper vehicle side (the arrow direction side E in Figure 5) is limited. In addition, one end of a cable 106 is anchored to the attachment plate 100. The other end of the cable 106 is anchored to a link mechanism 109 which is engaged with the prior actuator 110 which is later described. . In addition, when the cable 106 is pulled to the left side of the vehicle, the attachment plate 100 is rotated counterclockwise as seen in front view, and the stop state of the fixing pin 99 and the abutment surface 104 of the fixing plate 100 is canceled. As a result, the hood lock main body 92 enters a state where it can rotate toward the vehicle top side (the arrow direction side E in FIG. 5), and the front end portion is raised. of the hood 12 becomes possible. It should be noted that an unillustrated clearance portion is formed in the hood latch main body 92, and, when the hood latch main body 92 rotates, the bracket plate 100 and the support shaft 102, and the hood lock main body 92, do not interfere with each other. In addition, the fixing plate 100 is pushed in the clockwise direction as seen in front view by a spring 108. (Front 110 actuating devices) As shown in FIG. prior actuators 110 are formed in substantially solid cylindrical shapes whose axial directions are the vertical vehicle direction, and are provided at the right-hand side of the vehicle and the left-hand side of the vehicle with respect to the hood-locking device 82, respectively. The front actuator 110 is structured to include an actuator main body 112 which is formed in a substantially cylindrical tube shape, and a cylinder portion 114. The cylinder portion 114 is formed substantially in the form of a cylindrical tube having a bottom, which opens towards the lower side of the vehicle. The upper portion of the actuator main body 112 is inserted into the cylinder portion 114. In addition, in the inactive state of the front actuator 110, the upper end portion of the cylinder portion 114 is disposed so as to be slightly apart, towards the lower vehicle side, from the hood 12. The actuator main body 112 is fixed to the radiator support not shown via a support 116 which is plate-shaped. In addition, an enlarged diameter portion 112A, which protrudes toward the radial direction outer side of the actuator main body 112, is integrally formed with the upper portion of the actuator main body 112. The outer diameter of the enlarged diameter portion 112A is provided to be larger than the outer diameter of the actuator main body 112. A groove portion 112Aa is formed in the outer peripheral portion of the enlarged diameter portion 112A. along the peripheral direction of the actuator main body 112. An O-ring 118 is mounted in this groove portion 112Aa, and the area between the enlarged diameter portion 112A and the cylinder portion 114 is sealed by this O-ring 118. In addition, a gas generating device 120 is mounted in the actuator main body 112 at an integral portion. intermediate in its direction of length. The gas generating device 120 is structured in a manner similar to the gas generating device 70. That is, the gas generating device 120 has a primer (ignition device), and an agent The gas generating device 120 is electrically connected to the ECU 26 (see FIG. 1), and is structured to operate. due to the control of the ECU 26. In addition, when the gas generating device 120 is operating, gas generated by the gas generating device 120 is delivered within the actuator main body 112. As a result, the cylinder portion 114 rises, and the upper end portion of the cylinder portion 114 abuts the hood 12. The forward end portion of the hood 12 is thus raised to a raised position ( the position represented by the mid-lines shown in Figure 4 and Figure 7). In addition, a cable bundle 122 which is connected to the gas generating device 120 is disposed on the radial direction inner side of the actuator main body 112. This cable bundle 122 is pulled out towards the outside of the device. actuating device 110 from the lower end of the actuator main body 112. It should be noted that a resin material is poured into the radial direction inner side of the actuator main body 112 Furthermore, as shown in FIG. 4, the link mechanism 109 is engaged with the cylinder portion 114 at the front actuator 110 which is disposed on the left side of the vehicle relative to the locking device. The other end of the cable described above 106 is anchored to the link mechanism 109. When the cylinder portion 114 rises at the time of operation Prior to 110, the link mechanism 109 operates, and the cable 106 is pulled to the left side of the vehicle.
    [0014] Different conditions of the front actuators 110 and the rear actuators 60 in the first embodiment are described next. As shown in Fig. 7, a lifting amount H1 of the front actuators 110 (the distance in the vertical vehicle direction from the closed position to the raised position at the front end portion of the hood 12) is intended to be 50 mm. An amount of H2 lifting of the rear actuators 60 (the distance in the vertical vehicle direction from the closed position to the raised position at the rear end portion of the hood 12) is intended to be 75 mm. That is, the amount of uplift H2 is expected to be larger than the amount of uplift H1. On the other hand, as shown in FIG. 8, a lifting force F1 of the front actuating devices 110 (the force towards the upper vehicle side which acts on the front end portion of the hood 12), and a force the rear actuating devices 60 (the force towards the vehicle upper side acting on the rear end portion of the hood 12), are respectively respectively and suitably set to forces which are necessary to lift the Hood 12. The operating times of the front actuators 110 and the rear actuators 60 are set at 15 milliseconds, respectively. In addition, based on the output of the collision detection sensor 28, the ECU 26 described above estimates whether to actuate or not the liftable hood device 30 for a vehicle. In addition, when the ECU 26 estimates that the liftable hood device 30 is to be operated for a vehicle, the front actuators 110 operate first, and once a predetermined time (10 to 15 milliseconds in the present embodiment) flows from the beginning of operation of the front actuators 110, the rear actuators 60 operate. That is, in the first embodiment, the operation of the rear actuators 60 begins before the end of the operation of the actuators before 110 (in detail, immediately before the end of the operation) . Furthermore, as viewed in side view, a distance (length) in the longitudinal vehicle direction between the position of a center of gravity G of the cover 12 in the state in which the cover 12 is disposed in the closed position and the position of the actuating devices before 110 (in detail, the position in which the cylinder portions 114 lift the hood 12) is L1. In addition, the distance (length) in the longitudinal vehicle direction between the position of the center of gravity G of the hood 12 and the position of the rear actuators 60 (in detail, the position in which the piston rods 72 raise the hinge arm 54) is L2. The operation and effects of the first embodiment are described next. When the retractable hood device 30 for a vehicle is in an idle state, the hood 12 is disposed in the closed position, and the engine compartment ER is closed by the hood 12 (see the hood 12 shown by the solid lines in the figure 7). When, from this state, the vehicle 10 collides head-on with an obstacle such as a pedestrian or the like, the fact that the vehicle 10 collides head-on with an obstacle is detected by the collision detection sensor 28, and a collision signal is outputted from the collision detection sensor 28 to the ECU 26. In the ECU 26, based on the entered collision signal, it is judged whether the retractable hood device 30 for a vehicle is to be operated or not. Moreover, when the ECU 26 judges that the liftable hood device 30 for a vehicle must be actuated, the gas generating devices 120 of the front actuating devices 110 are actuated by the control of the ECU 26, and the Gas is delivered to the main actuator body 112. When gas is delivered to the actuator main body 112, the cylinder portions 114 are pushed by the gas pressure inside the main body of the actuator body 112. actuator 112, and the cylinder portions 114 move in the axial directions to the vehicle top side (rise) along the axial directions of the actuator main body 112. When the cylinder parts 114 move in the axial directions towards the upper side of the vehicle, in connection with the movement of the cylinder parts 114, the cable 106 of the front liftable hood device 80 is pulled towards the left side of the vehicle. As a result, the attachment plate 100 rotates, and a rotation of the hood lock main body 92 towards the upper vehicle side becomes possible. That is, the lifting of the front end portion of the hood 12 becomes possible.
    [0015] In addition, as the cylinder portions 114 move in the axial directions towards the upper vehicle side, the upper end portions of the cylinder portions 114 abut the hood 12 and lift the forward end portion of the hood 12 toward the hood. the upper side of the vehicle. As a result, the front end portion of the hood 12 is lifted to the raised position (see the broken lines in FIG. 4). On the other hand, once a predetermined time elapses from the start of the operation of the front actuators 110, the gas generating devices 70 of the rear actuators 60 operate due to the control of the actuators. ECU 26, and gas is delivered into the main cylinder bodies 64. When gas is delivered into the main cylinder bodies 64, the piston portions 74 are pushed by the gas pressure inside the main bodies of the cylinder. cylinder 64, and the piston rods 72 move in the axial directions towards the upper vehicle side (rise) within the cylinder main bodies 64. When the piston rods 72 move in the axial directions towards the on the upper side of the vehicle, the piston rods 72 raise the rear end portions of the hinge arms 54 towards the upper side of the vehicle, and the rear end portion of the hood 12 is raised. in the raised position. At that moment, the hinge arms 54 are turned towards the upper vehicle side relative to the oscillating arms 48, and the oscillating arms 48 are turned towards the vehicle upper side with respect to the hinge bases 46 (see FIG. 3). In this way, in the liftable hood device 30 for a vehicle of the first embodiment, the front actuators 110 are provided to operate prior to the rear actuators 60. The front end of the hood 12 can be raised at an early stage. That is, as shown in Fig. 8, when the front actuators 110 operate, a moment of rotation M1 about the center of gravity G of the hood 12 as viewed from the side is applied on the hood 12. On the other hand, when the rear actuators 60 operate, a torque M2 around the center of gravity G of the hood 12 as seen in side view is applied to the cover 12. By therefore, as the rear actuators 60 operate, the front end portion of the hood 12 begins to be moved to the lower vehicle side due to the aforementioned torque M2. Therefore, if the front actuators 110 and the rear actuators 60 were to operate simultaneously, the above-mentioned torque M2 that is applied to the hood 12 would affect the hood lift 12 by the parking devices. actuation before 110. As a result, there is the possibility that the lifting of the front end portion of the hood 12 is delayed.
    [0016] On the other hand, in the first embodiment, the rear actuating devices 60 are not actuated at the moment of the beginning of the operation of the actuating devices before 110. Therefore, at the initial stage of the operation of the cover 12 thanks to the before 110, the aforementioned torque M2 is not applied to the hood 12. Therefore, until the rear actuators 60 operate, the front end portion of the hood 12 can be lifted by the actuating devices before 110 without being affected by the aforementioned torque M2 which appears at the cover 12. Therefore, the front end portion of the hood 12 can be raised at a stage early. In particular, when the vehicle 10 collides with a pedestrian and the pedestrian falls on the hood 12, the pedestrian comes into contact with the front end portion of the hood 12 before the rear end portion of the hood 12. by raising the front end portion of the hood 12 at an early stage, the ability to protect pedestrians can be improved. This point is illustrated hereinafter using FIG. 9A and FIG. 9B and comparing displacement data of the cover 12 at the moment of raising the cover 12 with a comparative example. It should be noted that the comparative example is provided such that the front actuators and the rear actuators that correspond to the first embodiment operate simultaneously. In addition, Figure 9A shows the movement of the hood at the time of the hood lift in the comparative example. Displacement data Fr ', which is represented by the solid line, are displacement data at the center transverse direction of the vehicle part of the front end portion of the hood, and displacement data Rrl' represented by the line. are displacement data at the two vehicle transverse direction end portions of the rear end portion of the hood, and displacement data Rr2 'which is represented by the dashed line is displacement data at the level of the central transverse direction of vehicle of the rear end portion of the hood. In addition, FIG. 9B shows displacement data Fr at the center transverse direction of the vehicle portion of the front end portion of the hood 12, at the time of lifting of the hood 12 in the first embodiment. In addition, in the graphs shown in Figure 9A and Figure 9B, the time is on the horizontal axis, and the displacement is on the vertical axis. As shown in FIG. 9A, in the comparative example, the hood is raised so that, once the front end portion of the hood is moved first to the lower side of the vehicle, the portion of front end of the hood is moved to the upper side of the vehicle. On the other hand, as shown in Fig. 9B, in the first embodiment, the front end portion of the hood 12 is raised toward the vehicle top side without being moved to the vehicle underside. Therefore, according to the liftable hood device 30 for a vehicle according to the first embodiment, the front end portion of the hood 12 can be raised at an early stage compared to the comparative example.
    [0017] In addition, in the first embodiment, the rear actuators 60 operate after the operation of the actuators before 110. Therefore, the vibration phase generated at the hood 12 due to the operation of the devices actuation before 110, and the vibration phase generated at the hood 12 due to the operation of the rear actuators 60, are shifted. As a result, the two aforementioned types of vibrations that are generated at the hood 12 are applied to cancel each other out. Thus, vibrations that appear at the hood 12 in its entirety once the hood 12 is lifted by the lift hood device 30 for a vehicle can be suppressed (the amplitude can be decreased). In addition, the amount of H2 lifting of the rear actuators 60 is intended to be greater than the amount of lifting H1 of the prior actuators 110. Therefore, the amplitude of vibrations generated at the hood 12 of the The operation of the front actuators 110, and the amplitude of vibration generated at the hood 12 due to the operation of the rear actuators 60, are different. For this reason also, the two aforementioned types of vibrations that are generated at the hood 12 are applied to cancel each other. Thus, vibrations that appear at the hood 12 in its entirety once the hood 12 is raised can be removed (the amplitude can be decreased). In addition, as shown in Fig. 7, by setting the lift amount H2 of the rear actuators 60 to be larger than the lift amount H1 of the actuating devices before 110, the distance between the rear end portion of the hood 12, and the windshield or engine compartment element E inside the engine compartment ER, can be provided. Therefore, in a vehicle in which a pedestrian protection airbag (a hood airbag) is deployed on the lower vehicle side of the rear end portion of the hood 12, a space for the expansion of the cushion Inflatable hood can be efficiently insured. (Second Embodiment) A second embodiment is structured in a manner similar to the first embodiment except for the following points. That is, in the second embodiment, as shown in FIG. 8, as seen in side view, the moment of rotation M1 about the center of gravity G which is applied to the hood 12 because of the operation of the actuating devices before 110, and the torque M2 around the center of gravity G which is applied to the cover 12 due to the operation of the rear actuators 60, are provided so as to be in balance. Specifically, the front actuating devices 110 and the rear actuating devices 60 are structured such that the ratio of the lifting force F1 of the front actuating devices 110 to the lifting force F2 of the operating devices rear 60 is an inverse ratio of the ratio of the longitudinal vehicle steering distance L1 and the longitudinal vehicle steering distance L2.
    [0018] That is, the amounts of the gas generating agent that are poured into the gas generating devices 120 and the gas generating devices 70, or the like, are adjusted.
    [0019] In addition, in the second embodiment, the start of the operation of the front actuators by the ECU 26 and the start of operation of the rear actuators 60 are provided to be simultaneous. As a result, in the second embodiment, when the front actuators 110 and the rear actuators 60 operate through the control of the ECU 26, the hood 12 is lifted by the front actuators. 110 and the rear actuators 60 so as to translate from the closed position to the raised position. Therefore, in the second embodiment also, a movement towards the lower vehicle side of the front end portion of the hood 12 at the time of lifting the hood 12 is removed, and the front end portion of the hood 12 can therefore be raised at an early stage. In addition, because the hood 12 is raised to translate as described above, the rear end portion of the hood 12 can also be lifted at an early stage, and the hood 12 can be raised effectively. It should be noted that, in the second embodiment, as viewed in side view, the torque M1 which is applied to the cover 12 due to the operation of the actuating devices before 110, and the torque M2 which is applied on the hood 12 due to the operation of the rear actuators 60, are provided so as to be in equilibrium. In fact, for example, the lifting force F1 of the front actuating devices 110 may be provided such that the moment of rotation M1 becomes larger than the moment of rotation M2. In this case too, a movement towards the lower side of the vehicle of the front end portion of the hood 12 at the time of raising the hood 12 is eliminated, and the front end portion of the hood 12 can therefore be lifted. at an early stage. Moreover, in this case, the rear end portion of the hood 12 is raised so as to be delayed compared to the front end portion of the hood 12. However, it is sufficient to appropriately adjust the lifting force F1. actuating devices before 110 and the lifting force F2 of the rear actuating devices 60 while taking into consideration the moment when a pedestrian who falls on the hood 12 comes into contact with the rear end portion of the hood 12, and equivalent. (Modified example of a second embodiment) The present modified example is structured in a manner similar to the second embodiment, with the exception of the start times of the operations of the front actuators 110 and the actuators rearward 60. That is to say, in the second embodiment, the beginning of the operation of the actuating devices before 110 and the beginning of the operation of the rear actuating devices 60 are intended to be synchronous, but, in the present modified example, the rear actuators 60 are provided to operate once a predetermined time has elapsed since the start of operation of the prior actuators 110, in the same manner as in the first embodiment. As a result, in the present example also modified, a movement towards the lower side of the vehicle of the front end part of the hood 12 at the time of the lifting of the hood 12 is eliminated, and the front end portion of the hood 12 can therefore be raised at an early stage. It should be noted that in the first embodiment and the modified example of the second embodiment, the rear actuators 60 are provided to operate immediately before the end of the operation of the actuators prior to operation. In fact, the rear actuators 60 may be provided to operate after the end of the operation of the front actuators 110. Thus, during the entire operating time of the front actuators 110, the front end portion of the hood 12 can be lifted by the front actuators 110 without being affected by the above-mentioned torque M2 which occurs at the hood 12. In addition, the front end portion of the cover 12 can be raised by the actuating devices before 110 without being affected by vibrations that appear at the cover 12 because of the devices of rear actuation 60 which raise the cover 12. It should be noted that, in this case also, it is sufficient to establish appropriately the timing of the start of the operation of the rear actuating devices 60 while taking into consideration the moment when a pedestrian that falls on the hood 12 comes into contact with the rear end portion of the hood 12, and equivalent. In addition, in the first embodiment, the second embodiment and the modified example of the second embodiment, the amount of lift H2 of the rear actuators 60 is intended to be larger than the amount of inflation. However, these amounts of lifting can be suitably changed depending on different types of vehicles.
    [0020] In addition, in the first embodiment, the second embodiment and the modified example of the second embodiment, the hood hinge 44 of the rear tiltable hood device 40 is structured to include the hinge base 46, the swing arm 48 and hinge arm 54. However, swingarm 48 may be omitted from hood hinge 44. That is, there may be a structure in which hinge arm 54 is connected. rotatably at the hinge base 46, and the rear actuator 60 is attached to the vehicle body or the hinge base 46, and the hood 12 or the hinge arm 54 is lifted by the piston rod 72 In addition, the first embodiment, the second embodiment and the modified example of the second embodiment are structured so that the central portion in the transverse direction of the vehicle at the portion of the the front end of the hood 12 is locked by the hood lock device 82 of the front lift hood device 80. In fact, there may be a structure in which the two vehicle transverse direction end portions of the the front end of the hood 12 are locked by the front lift device 80.
    [0021] In addition, in the first embodiment, the second embodiment and the modified example of the second embodiment, the front liftable hood device 80 is structured such that the two end portions in the transverse direction of the vehicle of the front end portion of the hood 12 are raised by the pair of front left and right 110 actuating devices. Instead, there may be a structure in which a device of the pair of actuating devices before 110 is omitted, and the central portion in the transverse direction of the vehicle of the front end portion of the hood 12 is lifted by the other of the actuating devices before 110. In addition, in the first embodiment, the second Embodiment and the modified example of the second embodiment, the front actuator 110 is structured to include the main actuator body 112 and the cylinder portion 114. Instead, the front actuators 110 may be structured by a cylinder and a piston rod in the same manner as the rear actuator 60. Explanation of the references 12 hood Lifting hood device for vehicle 60 rear actuating device (rear end side operating device) 110 front operating device (front end side operating device) Fl lifting force of device front end side actuating force F2 lifting force of the actuating device of the rear end side G center of gravity of the hood Hl amount of hood lifting by the actuating device of the front end side H2 quantity for lifting the hood by the actuating device on the rear end side L1 longitudinal vehicle steering distance from the center of gravity of the pot to the front end side actuating device L2 longitudinal vehicle steering distance from the center of gravity of the hood to the rear end side actuating device
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. A liftable hood device for a vehicle, comprising: rear end-side actuating devices (60) which, in operation, lift the two end portions in the transverse direction of the vehicle at an end portion rear of a hood (12); and a front end side actuating device (110) which, in operation, raises a front end portion of the hood (12), characterized in that: the front end side actuating device (110) is provided to operate prior to the actuators of the rear end side (60).
    [0002]
    A liftable hood device for a vehicle, comprising: rear end-side actuating devices (60) which, in operation, lift the two end portions in the transverse direction of the vehicle at a portion thereof rear end of a hood (12); and a front end side actuating device (110) which, in operation, lifts a front end portion of the hood, characterized in that: lifting forces of the end-side actuating device front (110) and rear end side actuating devices (60) are provided such that, as viewed from the side view, a moment of rotation about a center of gravity which is applied to the hood (12) due to the front end side actuating device (110) which raises the hood (12) is the same or greater than a moment of rotation about the center of gravity which is applied to the hood (12) due to actuators on the rear end side (60) which raise the hood (12).
    [0003]
    A liftable hood device for a vehicle, comprising: rear end side actuating devices (60) which, in operation, lift the two end portions in the transverse direction of the vehicle at a portion of a vehicle; rear end of a hood (12); and a front end side actuating device (110) which, in operation, raises a front end portion of the hood (12), characterized in that: the front end side actuating device ( 110) is provided to operate prior to the actuating devices on the rear end side (60), the lifting forces of the actuating device of the front end side (110) and the actuating devices on the other side. rear end (60) are provided such that, as seen in side view, a moment of rotation about a center of gravity which is applied to the cover (12) due to the actuating device of the front end side (110) which raises the hood (12) is the same or greater than a rotational moment about the center of gravity which is applied to the hood (12) due to the actuators on the front side rear end (60) which raise the hood (12).
    [0004]
    A liftable hood device for a vehicle according to claim 1 or claim 3, wherein the rear end side actuating devices (60) are provided to operate after the end of the operation of the actuating device. the front end side (110).
    [0005]
    A liftable hood device for a vehicle according to claim 1 or claim 3, wherein the rear end side actuating devices (60) are provided to operate immediately before the end of the operation of the device. actuating the front end side (110).
    [0006]
    A liftable hood device for a vehicle according to claim 1 or claim 3, wherein the start times of operation of the front end side actuator (110) and the drive side actuators are rear end (60) are provided such that a vibration phase generated at the hood (12) due to the operation of the front end side actuating device (110), and a vibration phase generated at the hood (12) due to the operation of the actuators of the rear end side (60), are offset relative to each other. 30
    [0007]
    A liftable hood device for a vehicle according to claim 2, wherein a start of the operation of the front end side operation device (110) and a start of operation of the rear end side operation devices ( 60) are provided so as to be simultaneous.
    [0008]
    A liftable hood device for a vehicle according to claim 2 or claim 3, wherein a ratio of the lifting force of the front end side actuating device (110) and the lifting force of the operating devices. actuation of the rear end side (60) is provided to be an inverse ratio of a ratio of a distance, in a longitudinal vehicle direction, from a center of gravity of the hood (12) to the actuating the front end side (110) as viewed from the side and a distance, in the longitudinal vehicle direction, from the center of gravity of the hood (12) to the side actuating devices rear end (60).
    [0009]
    A liftable hood device for a vehicle according to any one of claims 1 to 8, wherein an amount of lifting of the hood (12) by the rear end side actuating devices (60) is provided to be greater than an amount of lifting of the hood (12) by the actuating device of the front end side (110).
    [0010]
    A liftable hood device for a vehicle according to any one of claims 1 to 9, wherein an amount of lifting of the hood (12) by the rear end side actuating devices (60) and an amount of lifting of the hood (12) by the actuating device of the front end side (110) are provided such that an amplitude of vibrations, which are generated at the hood (12) due to the operation of the device of actuating the front end side (110), and an amplitude of the vibrations, which are generated at the hood due to the actuating devices of the rear end side (60) that are operating, differ.
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    同族专利:
    公开号 | 公开日
    DE102015100627A1|2015-08-06|
    JP2015145209A|2015-08-13|
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    法律状态:
    2015-12-08| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-18| RS| Complete withdrawal|Effective date: 20161017 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014019332A|JP2015145209A|2014-02-04|2014-02-04|Vehicular pop-up hood device|
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