JP2010229631A - Hood locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact hood locking device managing with a small number of components. <P>SOLUTION: The hood locking device includes a latch 6 and a pawl 7 provided at one face of a base plate 4, and a secondary lever 8 provided at the other face. The pawl 7 turns between a latch engaging position where it is engaged with the latch 6 to regulate turning in a striker release direction, and a detaching position where it is detached from the latch 6. The secondary lever 8 turns between an opening regulating position where it is engaged with a striker 3 to lock the hood in a slightly open state, and an opening position where it evacuates from a course of the striker 3. The pawl 7 and the secondary lever 8 are pivoted to the base plate 4 by one common pivot 13, and one spring 23 energizes the pawl 7 toward the latch engaging position and energizes the secondary lever 8 toward the opening regulating position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hood lock device for locking a hood attached to an opening of an engine room so as to be openable and closable to a vehicle body in a fully closed state or a slightly opened state.

A hood lock device that locks the hood in a closed state is installed in the engine room of the vehicle. When the lock is released, the hood is automatically pushed up and opened. However, since it is dangerous if the hood suddenly opens greatly, it is common to limit the rise of the hood once.
Conventionally, in order to prevent the hood from suddenly fully opening, a latch that engages with a striker fixed to the hood and locks the hood in a fully closed state, and a pole that engages with the latch and restricts its reversal Separately, a hood lock device is known that is provided with an auxiliary lever that engages with a striker and stops the hood in a slightly opened state (see Patent Document 1).

JP 2008-149950 A

However, in the conventional hood lock device, the latch, the pole, and the auxiliary lever are attached to different positions of the base by different support shafts and are urged by different springs. Moreover, not only the installation space for latches, poles and auxiliary levers, but also a large installation space for springs is required, which is disadvantageous in that it is bulky.
The problem to be solved by the present invention is to provide a compact food lock device that requires only a small number of parts.

  The hood lock device of the present invention includes a striker fixed to a hood, a base plate fixed to a vehicle body, a latch and a pawl attached to one surface of the base plate, and a secondary lever attached to the other surface of the base plate. The latch is engaged with and disengaged from the striker as it rotates, and the hood is locked in a fully closed state when engaged, and the pawl is engaged with the latch so that the latch rotates in the striker releasing direction. The secondary lever is engaged with the striker to lock the hood in a slightly opened state by rotating between a latch engagement position for restricting the movement and a release position for separation from the latch. It pivots between a restricting position and an open position where it is retracted from the path of the striker, and the pawl and the secondary lever are on one common spindle. Ri is pivotally supported on the base plate, by one spring, said Pouru together with being biased toward the latching position, the secondary lever is biased toward the open regulating position.

The one spring is installed between the pawl and the secondary lever, and the pawl and the secondary lever are urged in the opposite directions to restrict the pawl from rotating beyond the latch engagement position. It is preferable to provide a first stopper and a second stopper that restricts the secondary lever from rotating beyond the opening restriction position.
Cable mounting portions are formed on both sides of the support shaft of the pawl, and an operation cable for pulling the pawl to rotate against an urging force is alternatively mounted on the cable mounting portion. Also good.
The support shaft and the mounting shaft that pivotally supports the latch on the base plate can have an end portion on the same side sandwiching the base plate as a caulking end portion.

According to the first or second aspect of the present invention, the pole and the secondary lever share the support shaft for attaching to the base plate and the spring to be urged, so that not only the number of parts but also the parts that support the springs are reduced. This eliminates the need for cost and reduces the installation space for the pawl and the secondary lever, thereby reducing the overall size of the apparatus.
According to the third aspect of the present invention, when the operation cable is attached to one cable attachment portion and when the operation cable is attached to the other cable attachment portion, even if the operation cable is pulled in the reverse direction, the poules are moved in the disengagement direction. Since it can be rotated, the same parts can be used for both right-hand drive vehicles and left-hand drive vehicles.
According to the invention which concerns on Claim 4, since the crimping direction of a support shaft and an attachment shaft becomes the same, the crimping process is simplified.

It is a rear view in the food | hood open | release state of the food lock apparatus which shows the Example of this invention. It is a rear view in the food | hood fully closed state of the hood lock apparatus which shows the Example of this invention. It is a front view in the hood fully closed state of the hood lock device which shows the example of the present invention. It is a front view at the time of the striker release of the food lock device which shows the example of the present invention. It is sectional drawing of the hood lock apparatus which shows the Example of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the hood lock device of the present invention is a device for locking a hood 1 attached to an opening of an engine room so as to be openable and closable to a vehicle body 2 in a fully closed state or a slightly open state. A striker 3 fixed to 1, a base plate 4 fixed to the vehicle body 2 and having a striker receiving groove 5, a latch 6 and a pawl 7 rotatably attached to one surface of the base plate 4, and the other surface of the base plate 4 And a secondary lever 8 attached to be rotatable.

The striker 3 is formed by bending a round bar into a U-shape, and both ends thereof are fixed to a substantially central portion of the front end of the lower surface of the hood 1.
The base plate 4 is fixed to a position corresponding to the striker 3 of the closed hood 1 inside the engine room. A vertically long striker receiving groove 5 formed at the center of the upper end of the base plate 4 opens upward, and receives the striker 3 when the hood 1 is closed.

The latch 6 is pivotally supported by a mounting shaft 9 on one side of the base plate 4 across the striker receiving groove 5. An engagement groove 10 that can be engaged with the striker 3 is formed on the peripheral edge of the latch 6, a striker collision surface 11 is formed adjacent to the engagement groove 10, and a pawl is continuously formed on the striker collision surface 11. 7 is formed.
Further, the latch 6 is biased by a biasing spring 21 (see FIG. 5), and normally, as shown in FIG. 1, the engaging groove 10 opens toward the opening of the striker receiving groove 5, and striker collision occurs. Surface 11 traverses striker receiving groove 5. On the other hand, when the latch 6 rotates against the urging force, the opening of the engagement groove 10 faces the side edge of the striker receiving groove 5 as shown in FIG.
1 and 2, the biasing spring 21 is omitted.

The pawl 7 is made of a long and narrow plate material, and its longitudinal central portion is pivotally supported by a support shaft 13 on the other side of the base plate 4 with the striker receiving groove 5 interposed therebetween.
On the side edge of one end portion in the longitudinal direction of the pawl 7, a latch holding portion 14 that is engaged with and disengaged from the latching projection 12 of the latch 6 with rotation is formed. 'Is formed.
Then, one end of an operation cable (not shown) for performing a pulling operation to rotate the pawl 7 is attached to one of the cable attachment portions 15 and 15 ′. Since the other end of the operation cable is connected to an opener lever operated at the driver's seat, the cable attachment portion 15 depends on the position of the driver's seat (depending on whether the vehicle is a left-hand drive vehicle or a right-hand drive vehicle). , 15 ′, select and install one suitable.

A first spring locking piece 16 whose tip is bent toward the other surface of the base plate 4 protrudes from the center of the pawl 7 toward the opposite side of the latch 6. The tip of the first spring locking piece 16 is slidably engaged with an arcuate first guide hole 17 formed in the base plate 4, and from the other surface of the base plate 4 as shown in FIGS. 3 to 5. It protrudes.
The pawl 7 has a latch engagement position where the first spring locking piece 16 is guided in the first guide hole 17, and the latch holding portion 14 engages with the locking projection 12 of the latch 6, and the release which separates from the latch 6. It is designed to rotate between positions.
When the pawl 7 is in the latch engagement position, the first spring locking piece 16 abuts on the end of the first guide hole 17, and the first spring locking piece 16 and the first guide hole 17 A first stopper is formed to restrict the rotation of 7 beyond the latch engagement position.

As shown in FIGS. 3 and 4, the secondary lever 8 is pivotally supported on the base plate 4 by a support shaft 13 common to the pawl 7. The support shaft 13 and the mounting shaft 9 that pivotally supports the latch 6 on the base plate 4 have an end portion on the same side across the base plate 4 (the end portion on one side in the example shown in the figure) as a caulking end portion. It has become.
Further, an operation piece 24 for manually rotating the secondary lever 8 is formed at a position protruding above the opening of the engine room at the upper part of the secondary lever 8.
Further, on one side of the secondary lever 8, a hook portion 18 extending upward and having an apex bent at an acute angle is formed, and on one side edge, a guide piece 19 bent toward one surface of the base plate 4 is formed. . The guide piece 19 is slidably engaged with an arc-shaped second guide hole 20 formed in the base plate 4.

The secondary lever 8 has an opening restriction position (FIG. 3) where the guide piece 19 is guided in the second guide hole 20 and the hook portion 18 crosses the striker receiving groove 5 which is the path of the striker 3, and the hook portion 18 It rotates between an open position (FIG. 4) for retreating from the striker receiving groove 5.
As shown in FIG. 3, when the secondary lever 8 is in the open restriction position, the guide piece 19 abuts against the end of the second guide hole 20, and the secondary lever 8 is driven by the guide piece 19 and the second guide hole 20. Forms a second stopper for restricting rotation of the lens beyond the opening restriction position.

A second spring locking piece 22 is formed on the other side edge of the secondary lever 8, and a spring 23 is installed between the first spring locking piece 16 of the pawl 7 and the second spring locking piece 22 of the secondary lever 8. Is done. By this one spring 23, the pawl 7 and the secondary lever 8 are biased in the opposite directions, the pawl 7 is biased toward the latch engagement position, and the secondary lever 8 is biased toward the opening restriction position. It is energized.
When the operation cable connected to the upper cable attachment portion 15 is pulled leftward in FIGS. 1 and 2 (in the case of a left-hand drive vehicle), or the operation cable connected to the lower cable attachment portion 15 ′ is pulled rightward ( In the case of a right-hand drive vehicle, the pawl 7 rotates in the direction of separation.

At this time, the secondary lever 8 supporting the spring 23 is held by the second stopper and does not rotate beyond the opening restriction position, so that the spring 23 itself does not move, and when the pulling operation of the operation cable is stopped, Poul 7 returns to its original position.
When the secondary lever 8 is rotated against the urging force of the spring 23, the pawl 7 supporting the spring 23 is held by the first stopper and does not rotate beyond the latch engagement position. When the secondary lever 8 is released, the secondary lever 8 is returned to the original position by the force of the spring 23.

Next, the operation of the hood lock device will be described.
When the hood 1 is fully opened, as shown in FIG. 1, the hook portion 18 of the secondary lever 8 crosses the striker receiving groove 5, and the striker collision surface 11 of the latch 6 faces the opening of the striker receiving groove 5.
When the hood 1 is pushed down, the striker 3 enters the striker receiving groove 5 while pushing away the secondary lever 8 and collides with the striker collision surface 11 of the latch 6. Then, the latch 6 rotates against the urging force of the urging spring 21 due to the impact of the collision, and when the hood 1 is completely closed, as shown in FIGS. 10 and the striker 3 are engaged.
At this time, the latch holding portion 14 of the pawl 7 engages with the locking projection 12 of the latch 6 and restricts the latch 6 from rotating in the striker releasing direction, so that the striker 3 engages with the latch 6. The hood 1 cannot be escaped from the groove 10 and the striker receiving groove 5 of the base plate 4 and is locked in the fully closed state.

When the operation cable is operated to rotate the pawl 7 to the disengaged position, the latch holding portion 14 and the engaging projection 12 are disengaged, and the latch 6 is pulled by the biasing spring 21 and rotates in the striker releasing direction. To do. Then, as shown in FIG. 1, the engagement groove 10 of the latch 6 opens upward, and the striker 3 rises in the striker receiving groove 5.
However, since the secondary lever 8 is in the opening restriction position and the hook portion 18 crosses the striker receiving groove 5, the striker 3 is caught by the hook portion 18 and the hood 1 is slightly opened as shown by the broken line in FIG. Locked in a locked state.
When the operation of the operation cable is completed, the pawl 7 returns to the latch engagement position by the urging force of the spring 23.

When a hand is inserted through a slight gap between the hood 1 and the engine room and the operation piece 24 is operated to rotate the secondary lever 8 to the open position (see FIG. 4), the hook portion 18 is retracted from the path of the striker 3. The striker 3 is allowed to rise, and the hood 1 can be fully opened.
When the secondary lever 8 is released, the secondary lever 8 returns to the open restriction position by the biasing force of the spring 23.
The first stopper and the second stopper are not limited to the structure of the above embodiment as long as the rotation of the pawl 7 and the secondary lever 8 is restricted, and the positions where the pawl 7 and the secondary lever 8 of the base plate 4 are in contact with each other. It may be a cut and raised piece or the like formed respectively.

DESCRIPTION OF SYMBOLS 1 Hood 2 Car body 3 Striker 4 Base plate 5 Striker receiving groove 6 Latch 7 Powl 8 Secondary lever 9 Mounting shaft 10 Engaging groove 11 Striker collision surface 12 Locking protrusion 13 Support shaft 14 Latch holding | suppressing part 15,15 'Cable attaching part 16 1st 1 spring locking piece 17 first guide hole 18 hook portion 19 guide piece 20 second guide hole 21 biasing spring 22 second spring locking piece 23 spring 24 operation piece

Claims (4)

  A striker fixed to the hood, a base plate fixed to the vehicle body, a latch and a pawl attached to one surface of the base plate, and a secondary lever attached to the other surface of the base plate, and the latch pivots A latch engagement position that engages and disengages the striker and locks the hood in the fully closed state when engaged, and the pawl engages with the latch and restricts the latch from rotating in the striker releasing direction. The secondary lever engages with the striker and locks the hood in a slightly opened state, and from the path of the striker. In a hood lock device that rotates between an open and retracted position, the pawl and the secondary lever are moved forward by a common spindle. A hood lock device characterized by being pivotally supported by a base plate and biasing the pawl toward the latch engagement position by one spring and the secondary lever being biased toward the opening restriction position. .   The one spring is installed between the pawl and the secondary lever, the pawl and the secondary lever are urged in the opposite directions, and the pawl is restricted from rotating beyond the latch engagement position. The hood lock device according to claim 1, further comprising a first stopper and a second stopper for restricting the secondary lever from rotating beyond the opening restriction position.   Cable mounting portions are formed on both sides of the support shaft of the pawl, and an operation cable for pulling the pawl to rotate against an urging force is alternatively mounted on the cable mounting portion. The food lock device according to claim 1 or 2.   The hood lock device according to any one of claims 1 to 3, wherein the support shaft and the mounting shaft that pivotally supports the latch on a base plate have an end portion on the same side sandwiching the base plate as a caulking end portion.

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