JP5244766B2 - Locking device for folding hood for vehicle - Google Patents

Description

  The present invention relates to a locking device that fixes a first bow, which is a front frame of a folding hood used in a vehicle, to a front window header on the vehicle body side.

  A folding hood used for a vehicle is provided on a roof portion of the vehicle so that the passenger space can be switched to an open state or a closed state. The folding hood is expanded so as to cover the occupant space, or folded to open the occupant space and stored in the rear part of the vehicle.

  The folding hood is provided with a lock device for fixing the front frame of the folding hood to the front window header on the vehicle body side. This locking device is provided on the front frame of the folding hood, and is provided with a latch hook having a locking claw that is displaced to a locked position or an unlocked position by driving means such as a manual or electric motor. The latch hook is connected to an operating lever (for example, an operation lever) that is operated manually or by driving means such as an electric motor, and is displaced to a lock position or a lock release position.

  The front window header is provided with a locking member that engages with or disengages from the latch hook. When the latch hook engages with the locking member, the front window header enters a locked state and is disengaged from the locking member. It will be unlocked.

  In such a folding hood locking device, when a vehicle collision impact occurs while the vehicle is running in the hood closed state, and the pulling action on the hood is very strong, the operating lever is deformed and the locking member Since the latch hook engaged with the door is forcibly displaced in the direction of disengagement, the lock is released, and the hood is opened, and there is a possibility that the occupant is thrown out of the vehicle, which is very dangerous.

  Japanese Utility Model Publication No. 2-35827

  In this way, in the conventional folding hood locking device, when the rearward pulling action acts on the hood very strongly due to the impact generated at the time of the vehicle collision, the lock is forcibly released and the occupant is thrown out of the vehicle. There is a risk that.

  The present invention was devised in view of such a problem, and even if an impact due to a vehicle collision occurs during traveling of the vehicle in the hood closed state, the lock state of the folding hood is forcibly released. It is an object of the present invention to provide a locking device that can prevent the occurrence of the failure.

  In order to achieve the above object, a folding hood locking device according to the present invention includes a striker pin disposed at the center of a first bow, which is a front frame of the folding hood, and provided at the center of a front window header. A latch hook that engages with or disengages from the striker and an operating lever that is operated by driving means such as a manual or electric motor are provided. The operating lever engages the latch hook with the striker in accordance with its rotation. It is connected to the latch hook so that it can be displaced to the lock position to be engaged or the lock release position to be disengaged from the striker. Engages the drive shaft of the actuating lever to prevent displacement of the latch hook. It is provided with a coupling portion to the latch hook.

  According to the present invention, even when a vehicle collision impact occurs during travel of the vehicle with the folding hood closed, and the folding hood is forced to move backward, the locking device is not unlocked, Since the locked state is maintained, it is possible to avoid the risk that the folding hood opens and the occupant is thrown out of the vehicle.

  In addition, according to the present invention, it is not necessary to add a special part to provide the above function, and it can be realized with a simple structure. Therefore, it is possible to suppress an increase in cost and weight due to an increase in the number of parts. .

It is a figure which shows the closed state of the folding hood concerning embodiment of this invention. It is a figure which shows the state in the middle of opening and closing of the folding hood concerning embodiment of this invention. It is a perspective view which shows the striker with which the locking device attached to the 1st bow which is the front part frame of the folding hood which concerns on embodiment of this invention, and the latch hook of this locking device engage. It is a perspective view which shows the locked state of the locking device which concerns on embodiment of this invention. It is a perspective view which shows the lock release state of the locking device which concerns on embodiment of this invention. It is a side view which shows the locked state which removed the electric motor unit from the locking device shown in FIG. It is a side view which shows the lock release state which removed the electric motor unit from the locking device shown in FIG. It is the side view which removed the support bracket by the side of an electric motor unit from the locking device shown in FIG. It is the side view which removed the support bracket by the side of the electric motor unit from the locking device shown in FIG.

  Hereinafter, the present invention will be specifically described based on preferred embodiments.

  FIG. 1 shows a closed state of the folding hood 1 provided in the vehicle, and FIG. 2 shows a state in the middle of opening and closing the folding hood 1 provided in the vehicle. The folding hood 1 is expanded so as to cover the occupant space, or is folded and stored in the rear part of the vehicle so that the first bow 4 as the front frame of the hood surrounds the front window 3 on the vehicle body side. The front window header 2 is detachably fixed.

  As shown in FIG. 3, the first bow 4 which is the front frame of the folding hood 1 is provided with a lock device 5 for fixing the first bow 4 to the front window header 2 on the vehicle body side. Yes. In this figure, the arrow F indicates the vehicle front direction.

  In the locking device 5, a latch hook 13 is rotatably provided at the center of the first bow 4 via a base member 8. Further, a striker 6 having a striker pin 7 is provided at the center of the front window header 2. The first bow 4 is fixed to the front window header 2 by the latch hook 13 engaging and locking with the striker pin 7.

  Further, positioning pins (not shown) are provided on both sides of the first bow 4 in the vehicle width direction, and these positioning pins are inserted into positioning holes (not shown) provided on both sides of the front window header 2 in the vehicle width direction. The first bow 4 is positioned with respect to the window header 2.

  The locking operation or the unlocking operation of the locking device 5 is performed by causing the occupant to selectively operate a switch (not shown) to cause the electric motor 21 of the electric motor unit 20 provided in the locking device 5 to rotate forward or backward, thereby latching the latch hook. This is done by tilting the actuating lever 14 connected to 13 forward or backward.

  As shown in FIGS. 4, 6, and 8, when the operating lever 14 is tilted backward in the direction of the arrow a, it is displaced to the locked position to be locked, and as shown in FIGS. When the lever 14 is tilted forward in the direction of the arrow b, the latch hook 13 is displaced to the unlocked position and enters the unlocked state.

The lock device 5 is supported by a drive shaft 15 that transmits the rotation of the drive portion 22a of the electric motor unit 20 including the electric motor 21 and the gear unit 22 to the base member 8 including the base plate 9 and the support brackets 10, 11, and 12. One end of the operating lever 14 is fixed to the drive shaft 15 so as to be integrally rotatable, and the other end is rotatably connected to the base end portion 13 d of the latch hook 13.
The drive portion 22a of the electric motor unit 20 is provided with a recess that meshes with a serration provided on the drive shaft 15, and has a cylindrical shaft so that the drive shaft 15 can be inserted.

  The support portion 13b of the latch hook 13 includes a support link 16 having one end rotatably supported by a support portion 9a formed by cutting and raising a part of the base plate 9 constituting the base member 8, and the other end of the support link 16. One end of the support link 17 is rotatably connected to the other end of the support link 17, and the support link 16 and the operating lever 14 are rotatably connected by a control link 19. The operation of the support link 16 is controlled according to the operation.

  The base member 8 includes a stopper 11a that contacts the end of the operating lever 14 and stops the rotation of the operating lever 14 to stop the base ends 13d and 13e of the latch hook 13 at the locked position, and a support link. A stopper portion 12a that stops the rotation of the support link 18 by contacting the end portion of the support link 18 is provided. Further, in order to stop the hook portion 13a of the latch hook 13 at the locked position, a stopper portion that abuts on the stopper portion 13c provided on the support portion 13b of the latch hook 13 and stops the rotation of the support portion 13b of the latch hook 13 12b is provided.

As shown in FIG. 8, the positional relationship between the striker pin 7, the latch hook 13, and the operating lever 14 at the lock position 5 is a straight line L <b> 2 passing through the axis P <b> 1 of the striker pin 7 and the axis P <b> 2 of the connecting shaft 23 of the operating lever 14. Is set so as to be offset by a predetermined angle α toward the stopper portion 11a side of the base member 8 with respect to the straight line L1 passing through the axis P1 of the striker pin 7 and the axis P3 of the drive shaft 15 and the striker pin The straight line L4 passing through the shaft center P1 of the support link 18 and the shaft center P4 of the connecting link 24 of the support link 18 is more base than the straight line L3 passing through the shaft center P1 of the striker pin 7 and the shaft center P5 of the connecting shaft 25 of the support link 18. The member 8 is set to be in a state of being shifted by a predetermined angle α toward the stopper portion 12a side.
In the present embodiment, the predetermined angle α is set to about 5 degrees, and is preferably set to be 5 degrees or more.

  As described above, even if a force for displacing in the vehicle rearward direction is applied to the first bow 4 fixed to the front window header 2 by setting so as to be in a state beyond the so-called fulcrum, the operation lever 14 can prevent the lock from being released due to the action of turning in the lock direction (arrow a direction).

  When a very strong force is applied to the latch hook 13 in the direction away from the striker 6 in the locked state, the operating lever 14 is deformed, and the base end portion 13d of the latch hook 13 is displaced to engage the drive shaft 15. In addition, an engaging portion 13f that prevents further displacement of the latch hook 13 is provided.

  When the engaging portion 13f of the latch hook 13 is engaged with the drive shaft 15, further displacement of the latch hook 13 is prevented. Even when the operation lever 14 is displaced in the unlocking direction (arrow b direction), the displacement of the operation lever 14 is prevented. As a result, the phenomenon that the lock is forcibly released can be prevented, and the safety of the passenger is improved.

  In the embodiment of the present invention, the operating lever 14 is rotated by the electric motor 21, but the operating lever 14 may be rotated by a hydraulic cylinder or the like. Further, the operating lever 14 may be rotated manually, and the driving means is not limited to the embodiment.

  The present invention is not limited to this embodiment, and it is understood that various modifications can be realized within the scope of the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Folding hood 2 Front window header 3 Front window 4 1st bow 5 Locking device 6 Striker 7 Striker pin 8 Base member 9 Base plate 9a Support part 10 Support bracket 11 Support bracket 11a Stopper part 12 Support bracket 12a Stopper part 12b Stopper part 13 Latch Hook 13a hook portion 13b support portion 13c stopper portion 13d base end portion 13e base end portion 13f engagement portion 14 actuating lever 15 drive shaft 16 support link 17 support link 18 support link 19 control link 20 electric motor unit 21 electric motor 22 gear unit 22a Drive part 23 Connecting shaft 24 Connecting shaft 25 Connecting shaft F Forward direction of vehicle a Locking direction direction of operating lever b Locking position direction of operating lever P1 Shaft center of striker pin 7 P2 Axis center P3 of the connecting shaft 23 of the actuating lever 14 Axis center P4 of the drive shaft 15 Axis axis P5 of the connecting shaft 24 of the support link 18 A straight line L2 P1 passing between the axes L1 P1 and P3 of the connecting shaft 25 of the support link 18 , Straight line L3 passing between P2, straight line L4 passing between P1 and P5, straight line α passing between P1 and P4, L1 and L2, or a predetermined angle formed by L3 and L4

Claims (1)

  A folding hood locking device used in a vehicle, the locking device being attached to a striker attached to a front window header on a vehicle body side and a first bow of a hood frame, and engaging with or engaging with the striker A latch hook to be detached and an operating lever attached to the first bow of the hood frame and operated by a driving means such as a manual or an electric motor are provided. The hook is connected to the latch hook so that the hook can be displaced to the engagement position or the disengagement position, and the operation lever in the engagement position is displaced in the disengagement direction by an impact generated at the time of a vehicle collision. The latch hook is provided with an engaging portion that can engage with the drive shaft of the actuating lever. To, folding hood of the locking device.

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