JP2006199179A - Vehicle hood device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a vehicle hood device capable of freely disposing components by solving the points to impose restriction on design. <P>SOLUTION: The vehicle hood device is provided with a hinge 33 for opening/closing the hood on the rear end 31b of the hood 31, and raises the whole of the hood 31 in case of collision. The hood device is equipped with a telescopic striker 35 which is engaged with a hook 36 at the vehicle body side in a normal time, and extends in case of collision, and a front actuator (actuator) 37 which is independent from the striker 35 and raises the hood 31 in case of collision. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle hood apparatus that can lift a hood at the time of a collision and protect an obstacle or the like jumped on the hood.

As a vehicular hood device, an attempt is made to protect the obstacles jumped on the hood by lifting the hood in the event of a collision so that the distance between the engine room and the hood is increased and the hood is sufficiently deformed. ing.
As an example of such a hood device for a vehicle, one that lifts the rear end of the hood with the front end of the hood as a fulcrum has been proposed.

  However, in a vehicle hood device that lifts the rear end of the hood with the front end of the hood as a fulcrum, of course, the distance between the engine room and the hood is short at the front end of the hood, and the engine room and hood at the rear end of the hood. The distance is long.

  For example, various forms of an obstacle colliding with the vehicle are assumed, and it is considered that the obstacle hits another part of the vehicle after hitting the front bumper of the vehicle. The first collision where the obstacle hits the front bumper or the like will be referred to as “primary collision”, and the collision that hits another part of the vehicle will be referred to as “secondary collision”.

  In general, when a small obstacle (for example, a short pedestrian) comes in contact with a bumper, it collides (bounces up) near the front edge of the hood, and a large obstacle (for example, a tall object) When a pedestrian is in contact with a bumper, it often collides (pulsed up) secondarily near the rear end of the hood. Therefore, when a small obstacle has a secondary collision with the hood, the vehicle hood apparatus that lifts the rear end of the hood with the front end of the hood as a fulcrum may cause a shortage of the distance between the engine room and the hood. It is done. Therefore, an attempt has been made to lift the entire hood.

As such a vehicular hood apparatus, there is known a vehicular hood apparatus in which actuators for lifting the hood are arranged before and after the hood in order to lift the entire hood (see, for example, Patent Document 1).
JP 2003-81052 A (page 8, FIG. 4-5)

  12 (a) and 12 (b) are diagrams for explaining a conventional basic configuration. A conventional vehicle hood apparatus includes a front unit for lifting the front part of the hood, and a rear unit for lifting the rear part of the hood. , So that the entire hood can be lifted upward. In (a), the front unit 210 is locked to the striker 213 on the hood 212 side. 214, a first link 215 that supports the vehicle body side hook 214, a second link 216 that is connected to one end of the first link 215 and supports the other end on the vehicle body 211 side, and these first and second links And moving means (actuators such as motors) 217 interposed between two links 215 and 216.

  In (b), when the hood 212 is lifted, the first and second links 215 and 216 are opened by driving the moving means 217.

However, in the above-described vehicle hood device, the front unit 210 is arranged in such a manner that the moving means (actuator such as a motor) 217 is assembled between the first and second links 215 and 216. There was a problem that it was difficult to do.
In general, a radiator for cooling an engine, a condenser of an air conditioner, and the like are often densely arranged in the front part of the hood, and the above-described front unit 210 is arranged in this densely-consolidated part, so that the degree of design freedom is increased. There may be restrictions.

  That is, in a vehicle hood apparatus that can lift the entire hood, a vehicle hood apparatus that can arrange a front unit without imposing design restrictions is desired.

  An object of the present invention is to solve the point that imposes design restrictions and to provide a vehicular hood device in which components can be freely arranged.

  The invention according to claim 1 is a vehicle hood apparatus that includes a hood opening / closing hinge at the rear end of the hood and lifts the entire hood in the event of a collision, and engages with the front end of the hood at a normal time on a vehicle body side hook. A telescopic striker that extends in the event of a collision and an actuator that lifts the hood independently of the striker in the event of a collision are provided.

  For example, when the vehicle hood device is configured, it is preferable that the components can be freely arranged because the design can be freely performed.

  Therefore, the front end of the hood is provided with a telescopic striker that normally engages with the vehicle body side hook and extends in the event of a collision, and an actuator that lifts the hood in the event of a collision independently of the striker, for example, The retractable striker and the actuator for lifting the hood can be freely arranged at the front end of the hood where the radiator for cooling the engine and the condenser of the air conditioner are densely packed.

  In the invention according to claim 1, at the front end of the hood, a telescopic striker that normally engages with the vehicle body side hook and extends at the time of a collision, and an actuator that lifts the hood at the time of the collision independently of the striker; Therefore, for example, an extendable striker and an actuator that lifts the hood can be freely arranged at the front end of the hood where the radiator for cooling the engine, the condenser of the air conditioner, and the like are densely packed. As a result, there is an advantage that the arrangement of the components of the vehicle hood apparatus can be easily arranged in an empty space, and the space efficiency in the hood can be improved.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a vehicle adopting a vehicle hood device according to the present invention, wherein 10 is a vehicle, 11 is a vehicle body, 12 is a front bumper, 13 is a radiator grille, 14 is a front fender, and 15 and 15 are headlamps. 16, 16 front pillars, 17 windshields, 18 front doors, 19 rear doors, 21 roofs, 22 front wheels, 23 rear wheels, 24 and 24 door mirrors, 25 trunk lids, 26 rear bumpers, Reference numeral 27 denotes an engine room.
The vehicle hood device 30 according to the present invention lifts the entire hood (vehicle hood) 31 upward when an obstacle comes into contact with the front bumper 12 (primary collision). It is a device that can reduce the impact on an obstacle when it is flipped up (secondary collision).

  FIG. 2 is a system diagram of a vehicle hood device according to the present invention. The vehicle hood device 30 includes a hood (vehicle hood) 31 that covers the front portion of the vehicle body 11 and a hood 31 for opening and closing the hood 31. Left and right hood opening and closing hinges 33, 33, a telescopic striker 35 provided at the front end of the hood 31 to lock the front end of the hood 31 to the vehicle body 11 side, and the striker 35 is locked For this purpose, a vehicle body side hook (lock mechanism) 36 provided on the vehicle body 11 side, a front actuator 37 as an actuator for lifting the front end 31a of the hood 31 by providing it on the vehicle body 11 side, and a hood provided on the vehicle body 11 side. The left and right rear actuators 41, 41 that lift the left and right rear ends 31 b of the 31 and the front bumper 12 are provided so that the obstacle 49 can A bumper sensor 43 and a floor sensor 44 that detect a primary collision with the bumper 12, a vehicle speed sensor 45 that detects a vehicle speed including the time of the collision, and a front actuator 37 and an actuator based on information from these sensors 43 to 45. And a control unit 46 that operates and controls the left and right rear actuators 41, 41. The bumper sensor 43 and the floor sensor 44 are acceleration sensors, and the vehicle speed sensor 45 is a speed sensor.

FIG. 3 is a side sectional view of a vehicle hood device according to the present invention, in which 51 is a radiator for cooling an engine, 52 is a condenser of an air conditioner, 53 is a bumper beam, 54 is a dashboard, 55 is a gasket, 56 is An inner panel 57 of the hood 31 and an outer panel 57 of the hood 31 are shown.
The vehicle hood device 30 is provided with a hood opening / closing hinge 33 at the rear end 31b of the hood 31 and lifts the entire hood 31 at the time of a collision. It can be said that it is provided with a telescopic striker 35 that engages with 36 and extends at the time of a collision, and a pre-actuator (actuator) 37 that lifts the hood 31 at the time of the collision independently of the striker 35.

  For example, when the vehicle hood device is configured, it is preferable that the components can be freely arranged because the design can be freely performed.

Therefore, a hood device for a vehicle is provided with a hood opening / closing hinge 33 at the rear end 31b of the hood 31 and lifts the entire hood 31 in the event of a collision, and engages with a front end 31a of the hood 31 and a vehicle body side hook 36 at normal times. A telescopic striker 35 extending at the time of collision and a pre-actuator (actuator) 37 that lifts the hood 31 at the time of the collision independently of the striker 35 are provided, for example, a radiator 51 for cooling the engine or an air conditioner. A telescopic striker 35 and a front actuator 37 for lifting the hood 31 can be freely arranged on the front end 31a of the hood 31 where the condensers 52 and the like are densely packed. As a result, the components of the vehicle hood apparatus 30 can be easily arranged in a vacant space, and the degree of design freedom can be increased. In addition, space efficiency in the hood 31 (engine room 27) can be improved.
Hereinafter, details of the front lifting portion 61 (see FIG. 1) and the left and right rear lifting portions 81L and 81R (see FIG. 1) will be described.

FIG. 4 is a side sectional view showing an initial state of the front lifting portion of the vehicle hood apparatus according to the present invention. The front lifting portion 61 includes the retractable (stretchable) striker 35 described above and the vehicle body. This is a portion constituted by the side hook 36 and the front actuator 37.
The front actuator 37 includes a cylinder 62 that is supported on the vehicle body 11 side, a rod 63 that lifts the front portion of the hood 31 by being slidably attached to the cylinder 62, and a rod 63 that is enclosed in the bottom 62 a of the cylinder 62. An inflator 64 to be moved.

  FIG. 5 is a side sectional view showing the operating state of the front lifting portion of the vehicle hood apparatus according to the present invention, and the front lifting portion 61 ignites the inflator 64 according to the instruction of the control portion 46 shown in FIG. Thus, it is shown that the front end 31a of the hood 31 can be raised upward by moving the rod 63 as indicated by the white arrow a1. As will be described later, the striker 35 is a member configured to be extendable (expandable), and prevents the expansion and contraction in the normal state and allows the expansion and contraction when the front actuator 37 is operated (see FIG. 4). Reference).

  FIG. 6 is a side sectional view showing an initial state of the striker of the vehicle hood apparatus according to the present invention. The striker 35 includes front and rear fixed pipes (fixed side members) 65 and 65 attached to the inner panel 56 of the hood 31. A U-shaped rod (slide-side pipe or slide-side member) 67 slidably attached to the front and rear fixed pipes 65 and 65, and a shear pin for fixing the U-shaped rod 67 to the front and rear fixed pipes 65 and 65 (Shear pin) 69,69.

  FIG. 7 is a side sectional view showing the operation state of the striker of the vehicle hood apparatus according to the present invention, wherein the fixed side pipe 65 is fitted with fitting holes 71 for fitting the shear pins 69. The same applies hereinafter, and a locking claw 72 and a locking hole 73 for locking the U-shaped rod 67 with a predetermined movement amount, and a caulking portion 74 for mounting on the inner panel 56.

The U-shaped rod 67 is a pipe that is locked to the vehicle body side hook 36, and is engaged with the through holes 75 (through 75 and 75 not shown in the figure) through which the shear pins 69 and 69 pass and the locking claws 72 and 72. Protrusions 76 and 76 to be locked, lock claws 77 and 77 to be locked in the locking holes 73 and 73, recesses 78 and 78 for storing the locks 77 and 77, and the recesses 78 and 78 and the lock claws 77 and 77. And compression springs 79, 79 interposed therebetween.
The compression spring 79 is a spring having a function of urging the lock claw 77 by the fixed side pipe 65 and holding the lock claw 77 on the U-shaped rod 67 side.

  The striker 35 is configured by inserting U-shaped rods (slide-side pipes) 67 into the front and rear fixed pipes 65 and 65 and locking the U-shaped rods 67 to the front and rear fixed pipes 65 and 65 with shear pins 69 and 69. By driving the front actuator 37 (see FIG. 4), the shear pins 69, 69 are broken, the lock claws 77, 77 are engaged with the engagement holes 73, 73, and the protrusions 76, 76 are engaged with the locking claws 72, 72. By locking the striker 35, the striker 35 can be held in a state extended to a predetermined length.

FIG. 8 is a side sectional view showing an initial state of the rear lifting portion of the vehicle hood apparatus according to the present invention, and shows a left rear lifting portion 81L. Note that the right rear lifting portion 81R (see FIG. 1) is the subject of the left rear lifting portion 81L with respect to the vehicle body center, and detailed description thereof is omitted.
The left rear lifting portion 81L is constituted by the hood opening / closing hinge 33 and the rear actuator 41 described above.

  The hood opening / closing hinge 33 includes a vehicle body side holder 82 that is attached to the vehicle body 11, a first link 83 that is rotatably attached to the vehicle body side holder 82, and a second link 84 that is rotatably attached to the tip of the first link 83. The hood side holder 85 that is rotatably attached to the tip of the second link 84, the connecting pin 86 that rotatably connects the vehicle body side holder 82 and the first link 83, the first link 83, and the second link 84 A connecting pin 87 for rotatably connecting the second link 84 and the hood side holder 85, a shear pin (shear pin) for connecting the vehicle body side holder 82 and the first link 83 at the normal time. 89).

  The rear actuator 41 includes a cylinder 92 that is supported on the vehicle body 11 side, a rod 93 that lifts the rear end 31b of the hood 31 by being slidably attached to the cylinder 92, and a rod 93 that is enclosed in the bottom 92a of the cylinder 92. And an inflator 94 for moving the.

  FIG. 9 is a side sectional view showing the operating state of the rear lifting portion of the vehicle hood device according to the present invention. The vehicle body side holder 82 includes a fitting hole 101 into which the shear pin 89 is fitted and the first link in an inverted state. The first link 83 includes a through hole 103 that allows the shear pin 89 to pass therethrough, and the second link 84 includes the abutting portion 104 that contacts the first link 83 in an inverted state. Show.

  The left rear lifting portion 81L ignites the inflator 94 (see FIG. 8) in response to an instruction from the control unit 46 (see FIG. 3), and drives the rear actuator 41 as shown by the arrow b1 to move the shear pin 89 as shown by the arrow b2. The rear end 31b of the hood 31 can be lifted as shown by the arrow b3. Further, when the first and second links 83, 84 are inverted, the first link 83 is brought into contact with the stopper portion 102 of the vehicle body side holder 82, and the contact portion 104 of the second link 84 is brought into contact with the first link 83. The lifting posture of the hood 31 can be maintained by applying.

The operation of the vehicle hood device 30 described above will be described.
FIGS. 10A and 10B are operation explanatory views showing an initial state of the vehicle hood apparatus according to the present invention.
In FIG. 9A, the hood opening / closing hinge 33 connects the vehicle body side holder 82 and the first link 83 with a shear pin 89 (shear pin) 89 at the normal time (before the rear actuator 41 is operated), and also the hood side holder 85 (FIG. 9). And the second link 84 are rotatably connected by the connecting pin 88. Therefore, the hood 31 can be opened as indicated by an imaginary line with the connecting pin 88 as a fulcrum as shown by an imaginary line, and the engine room can be opened. The maintenance / inspection work of the parts housed in 27 can be performed.

  In (b), when the obstacle 49 first collides with the front bumper 12 as indicated by an arrow c2, the vehicle hood device 30 instructs the control unit 46 (see FIG. 3) to indicate the front actuator 37 and the left and right rear actuators. 41 and 41 (one 41 is not shown) is operated, the striker 35 is extended, and the hood opening and closing hinges 33 and 33 (one 33 is not shown) is opened (inverted), and the hood (vehicle hood) 31 as a whole Can be lifted as shown by arrow c3. As a result, the distance between the hood 31 and the engine room 27 can be increased.

11 (a) and 11 (b) are operation explanatory views showing the operation state shown by the vehicle hood apparatus according to the present invention.
In (a), when the obstacle 49 is small (for example, a short pedestrian), it is known that there are many cases of secondary collision with the front part of the hood 31 (closer to the front end 31a). The vehicle hood apparatus 30 can increase the distance between the hood (vehicle hood) 31 and the engine room 27, for example, as compared with a case where the hood is lifted by cantilever with the front end of the hood as a fulcrum. As a result, even when the obstacle 49 is small, the obstacle 49 can be sufficiently protected.

In (b), when the obstacle 49 is large (for example, a tall pedestrian), it is known that there are many cases of a secondary collision at the rear part of the hood 31 (closer to the rear end 31b). The vehicle hood device 30 can lift the entire hood (vehicle hood) 31, and can greatly increase the distance between the hood 31 and the engine room 27. As a result, even when the obstacle 49 is large, the obstacle 49 can be sufficiently protected.
That is, it can be said that the vehicle hood device 30 is a vehicle hood device that has a high protective effect against small obstacles (for example, short pedestrians) and large obstacles (for example, tall pedestrians). .

In the vehicle hood device according to the present invention, as shown in FIG. 1, one front actuator 37 of the front lifting portion 61 is provided substantially at the center of the vehicle body, but the present invention is not limited to this. It may be provided.
As shown in FIG. 8, the vehicle hood apparatus according to the present invention connects the vehicle body side holder 82 and the first link 83 with the shear pin 89. However, the present invention is not limited to this, and together with the vehicle body side holder and the first link. The second link may also be connected with a share pin at the same time.

  The vehicle hood apparatus according to the present invention is an apparatus suitable for use in lifting a hood such as a minivan or a passenger car.

1 is a perspective view of a vehicle employing a vehicle hood device according to the present invention. It is a system diagram of the hood apparatus for vehicles concerning the present invention. It is side surface sectional drawing of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the initial state of the front part lifting part of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the operation state of the front part raising part of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the initial state of the striker of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the operation state of the striker of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the initial state of the rear part raising part of the hood apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows the operation state of the rear part raising part of the hood apparatus for vehicles which concerns on this invention. It is effect | action explanatory drawing which shows the initial state which the hood apparatus for vehicles which concerns on this invention shows. It is effect | action explanatory drawing which shows the operation state which the hood apparatus for vehicles which concerns on this invention shows. It is a figure explaining the conventional basic composition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Vehicle body, 30 ... Hood apparatus for vehicles, 31 ... Hood, 31a ... Front end, 31b ... Rear end, 33 ... Hood opening / closing hinge, 35 ... Strike, 36 ... Vehicle body side hook, 37 ... Actuator (front actuator) ).

Claims (1)

A hood device for a vehicle having a hood opening / closing hinge at the rear end of the hood and lifting the entire hood in the event of a collision,
The front end of the hood is provided with a telescopic striker that normally engages with a vehicle body side hook and extends in the event of a collision, and an actuator that lifts the hood in the event of a collision independently of the striker. A vehicle hood device.

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