JP2022026063A - Vehicle hood locking device - Google Patents

Abstract

To make it possible for a vehicle hood locking device to open a hood easily without operating a secondary latch from outside a vehicle.SOLUTION: There is included a sensing lever 7 which is held in a latch detection position so as not to be in conjunction with a release operation of a ratchet 5 by being in contact with a striker when a primary latch 3 is in its latch position and which is movable to an unlatch detection position for being possible to be in conjunction with the release operation of the ratchet 5 by being spaced away from the striker when the primary latch 3 is in its unlatch position and concurrently the striker is in its half-open position. When the primary latch 3 is in its latch position, the release operation of the ratchet 5 resulting from a first release operation of release operation means allows the primary latch 3 to move from its latch position to unlatch position, and the release operation of the ratchet 5 resulting from a second release operation of the release operation means allows a secondary latch 6 to move from its waiting position to retract position via the sensing lever 7.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle hood lock device for holding a vehicle hood in a closed position.

Generally, in a vehicle hood lock device, it is attached to a radiator core support in the engine room of a vehicle such as an automobile, and can be engaged with a striker provided in a hood that is pivotally supported vertically on the vehicle body. By engaging the primary latch and the ratchet that holds the hood in the fully closed position by engaging the primary latch with which the striker is engaged, and by engaging the striker that has disengaged from the primary latch, the hood is slightly moved from the fully closed position. Equipped with a secondary latch that holds it in the half-open position, the hood is released by releasing the ratchet and disengaging the latch based on the release operation of the opener handle located near the driver's seat. In this half-open position, the user moves to the front of the vehicle, inserts his hand into the gap between the front end of the hood and the radiator grill, and releases the handle provided on the secondary latch. Can be opened by lifting (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-54706

However, in a general conventional vehicle hood lock device, in order to open the hood from the half-open position, the user inserts a hand from outside the vehicle through the gap between the hood and the radiator grill and fumbles for the operation part of the secondary latch. Since it is necessary to search for and operate the vehicle, there is a problem that it is difficult to find the operation unit and the operability is very poor, especially in a vehicle designed so that the hood lock device is arranged at a recessed position.

In view of the above problems, it is an object of the present invention to provide a vehicle hood lock device capable of easily opening a hood without operating a secondary latch from outside the vehicle.

According to the present invention, the above problems are solved as follows.
In the vehicle hood lock device according to the present invention, the striker provided on the hood that is openable and closable to the vehicle body and the striker are fixed to the vehicle body and the striker enters and opens with the closing operation of the hood. A base plate having a striker entry groove that exits with operation, a latch position that is rotatably supported by the base plate and engaged with the striker that has entered the striker entry groove, and an unlatch position where the striker has left. The primary latch that can be moved to and the base plate that is rotatably supported by a predetermined angle and engages with the primary latch to hold the primary latch in the latch position and operate the release operating means provided in the predetermined position. A ratchet that allows the primary latch to move from the latch position to the unlatch position by the release operation based on the above, and a half-open that is supported by the base plate so as to be rotatable by a predetermined angle and the striker is slightly opened from the fully closed position. When in position, the secondary latch, which can move from the standby position where it can engage with the striker to the retracted position where it cannot engage with the striker, and which is elastically held at each position by the urging means, and the primary latch When in the latch position, by contacting the striker, the ratchet is held in the latch detection position which is not interlocked with the release operation, and when the primary latch is in the unlatch position and the striker is in the half-open position. A sensing lever that can be moved to an unlatch detection position that can be interlocked with the release operation of the ratchet by moving away from the striker, and when the primary latch is in the latch position, the first release operation means. The release operation of the ratchet based on the release operation enables the movement of the primary latch from the latch position to the unlatch position, and the release operation of the ratchet based on the second release operation of the release operation means causes the sensing lever to be released. The secondary latch is interlocked to move the secondary latch from the standby position to the retracted position.

Preferably, the sensing lever has a detection unit that enters the striker entry groove when in the unlatch detection position and contacts the striker when in the latch detection position.

Preferably, when the sensing lever is in the latch detection position, the ratchet cannot contact the contact portion provided on the ratchet even if the ratchet is released, and when the ratchet is in the unlatch detection position, the ratchet It has a contacted portion that can be interlocked with the release operation of the ratchet by contacting the contact portion with the release operation.

Preferably, the sensing lever is rotatably connected to the secondary latch by a predetermined angle.

Preferably, the sensing lever is constantly urged in the unlatch detection position direction by a spring acting between itself and the secondary latch.

The rotation center of the sensing lever is set below the rotation axis of the secondary latch.

Preferably, the sensing lever is placed between the base plate and the secondary latch and moves around the axis of rotation of the secondary latch.

Preferably, one end of the urging means is hooked on the secondary latch and the other end is hooked on the base plate, with an intermediate position between the standby position and the retracted position of the secondary latch as a boundary. The turnover spring is used so that the urging direction of the urging force applied to the secondary latch is reversed.

According to the present invention, the striker can be disengaged from the primary latch by the first operation of the release operation means, and the secondary latch can be moved to the retracted position by the second operation of the release operation means. The hood can be easily opened without operating the secondary latch from outside the vehicle as in.

It is a perspective view seen from the front of the automobile equipped with the hood lock device for a vehicle which concerns on this invention. It is a perspective view seen from the diagonally front left of the hood lock device. It is an exploded perspective view seen from the diagonally front left of the hood lock device. It is a front view of the hood lock device. It is a rear view of the hood lock device. It is an enlarged front view of the main part when the hood is held in a fully closed position. It is an enlarged front view of the main part when the opener handle is released for the first time. It is an enlarged front view of the main part when the primary latch is rotated to the unlatch position by the first release operation of the opener handle. It is an enlarged front view of the main part when the first release operation of an opener handle is completed. It is an enlarged front view of the main part when the opener handle is released for the second time. It is an enlarged front view of a main part when a hood is open. It is an enlarged front view of the main part when the hood is moving in the closing direction. It is an enlarged rear view of the main part in the same state as FIG. It is an enlarged rear view of the main part in the same state as FIG.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. The directions in the left-right direction and the rotation direction used in the following description are based on the front views of the drawings.
As shown in FIG. 1, the vehicle hood lock device 1 according to the present invention is attached to a radiator core support (hereinafter referred to as “vehicle body”) in the engine room of the front portion of a vehicle V such as an automobile, and the rear portion thereof is a vehicle body. A manual opener handle that holds the hood H in a fully closed position by engaging with the striker S provided at the front of the hood H that is pivotally supported in the vertical direction and is placed near the driver's seat. The operation of 100 enables the opening of the hood H.

As shown in FIGS. 2 to 5, the hood lock device 1 includes a metal base plate 2 fixed to a vehicle body. The base plate 2 is provided with a striker entry groove 21 having an upper opening so that the striker S can move forward and backward as the hood H opens and closes in the upper center, and also has a primary latch 3, a lift lever 4, a ratchet 5, and a secondary. The latch 6 and the sensing lever 7 are each rotatably supported by a predetermined angle.

The primary latch 3 is rotatably supported on the rear surface side of the base plate 2 by a latch shaft 8 whose substantially central portion faces in the front-rear direction, and is supported from the latch position shown in FIG. 6 to, for example, the unlatch position shown in FIG. 10 and vice versa. When the striker S, which is rotatable and enters the striker entry groove 21 when the hood H is closed, meshes with the engagement groove 31 of the primary latch 3, the unlatch position is approximately 45 degrees in the latch direction (clockwise). It rotates and rotates to the latch position.

The ratchet 5 is supported by a ratchet shaft 9 having an upper end portion facing in the front-rear direction so as to be rotatable by a predetermined angle on the rear surface side of the base plate 2, and an engaging direction (clockwise) in which the ratchet spring 10 engages with the primary latch 3. Be urged to. When the hood H is in the fully closed position, the striker S engages the engaging groove 31 of the primary latch 3 and the primary latch 3 is in the latch position shown in FIG. 6, the ratchet 5 is shown in FIG. At the indicated engaging position, the stepped claw portion 51 provided in the central portion engages with the engaging portion 33 provided at the tip of the arm portion 32 in the primary latch 3 to bring the primary latch 3 to the latch position. Hold.

In this embodiment, as shown in FIG. 6, the striker S engages with the engaging groove 31 of the primary latch 3, the primary latch 3 is in the latch position, and the ratchet 5 is engaged with the primary latch 3. The fitted state is defined as a latch state, and as shown in FIGS. 8 to 11, a state in which the striker S is disengaged from the engagement groove 31 of the primary latch 3 and the primary latch 3 is in the unlatch position. , Defined as an unlatch state.

Further, the ratchet 5 is one of the opener handles 100 by connecting the connecting portion 52 provided at the lower end portion to the opener handle 100 constituting the release operating means via the operating force transmitting member 11 configured by the Bowden cable. Based on the operation in the direction, the ratchet shaft 9 is rotated by a predetermined angle in the release direction (counterclockwise direction) against the urging force of the ratchet spring 10, and the claw portion 51 engages with the primary latch 3. It deviates from the joint portion 33 and allows the primary latch 3 to rotate freely in the unlatch direction (counterclockwise direction).

In the present embodiment, the release operation means is a manual opener handle 100 provided near the driver's seat, but instead of this, an electric actuator provided in the driver's seat or the engine room is used. It is also possible.

When the primary latch 3 is free to rotate in the unlatch direction, it rotates from the latch position in the unlatch direction and moves to the unlatch position by the urging force of the lift spring 12 acting on the lift lever 4, and moves into the engagement groove 31. Lift the meshing striker S upward. As a result, the hood H is lifted from the fully closed position to the half open position.

The lift lever 4 has a substantially central portion supported by a latch shaft 8 on the rear surface side of the base plate 2 so as to be rotatable by a predetermined angle, and is urged in the lift direction (counterclockwise direction) by the urging force of the lift spring 12. It is connected to the primary latch 3 in the rotational direction with some play. The urging force of the lift spring 12 is transmitted to the hood H via the lift lever 4 and the striker S, acts as a lift force for lifting the hood H from the fully closed position to the half-open position, and unlatch the primary latch 3 from the latch position. It also acts as a force to rotate to the position.

The slight play in the rotation direction of the lift lever 4 with respect to the above-mentioned primary latch 3 is particularly limited to a protrusion 34 provided on the arm portion 32 of the primary latch 3 so as to project rearward, as shown in FIGS. 13 and 14. This is achieved by engaging the connecting hole 41 provided in the lift lever 4 so as to cause some play in the rotational direction.

The lift lever 4 is provided with a lift arm portion 42 that overlaps the rear side of the arm portion 32 of the primary latch 3 and is slightly accessible from below to the engaging groove 31 of the primary latch 3. When the hood H is in the fully closed position and the primary latch 3 is held in the latch position, as shown in FIG. 6, the lift arm portion 42 is of the primary latch 3 due to the strong urging force of the lift spring 12. By strongly pressing the striker S engaged with the engaging groove 31 against the upper edge of the engaging groove 31, the rattling of the striker S in the engaging groove 31 and the rattling of the hood H are suppressed. ..

The secondary latch 6 is supported by a secondary latch shaft 13 whose lower portion faces in the front-rear direction so as to be rotatable in a predetermined angle in the left-right direction on the front side of the base plate 2, and also resists the urging force of the turnover spring 14 in FIG. It is possible to rotate from the standby position shown in the standby position to the relief position shown in FIGS. 10 and 11 and vice versa. The secondary latch 6 has a hook portion 62 provided at the upper end portion of the arm portion 61 extending upward along the striker entry groove 21, and a first detection unit facing the arm portion 61 with the striker entry groove 21 interposed therebetween. 63 and a second detection unit 64 extending diagonally upward to the right from the upper end of the first detection unit 63 are provided.

The turnover spring 14 is composed of a torsion spring, and when one arm portion 14a is hooked on the secondary latch 6 and the other arm portion 14b is hooked on the base plate 2, the secondary latch 6 rotates. The urging direction of the urging force in the rotational direction acting on the secondary latch 6 is reversed with the intermediate position between the standby position and the retracted position of the secondary latch 6 as a boundary. Specifically, when the secondary latch 6 is closer to the standby position than the intermediate position, an urging force is applied to the secondary latch 6 in the standby direction (clockwise direction), and the secondary latch 6 is located closer to the standby position than the intermediate position. Also, when it is on the side closer to the retracted position, an urging force is applied to the secondary latch 6 in the retracted direction (counterclockwise direction). When the urging force of the turnover spring 14 acts on the secondary latch 6 in the standby direction, the secondary latch 6 comes into contact with the lower side of the stopper portion 22 provided on the base plate 2 to be in the standby position. Is held in. Further, when the urging force of the turnover spring 14 acts on the secondary latch 6 in the retracting direction, the secondary latch 6 is held in the retracting position by abutting on the upper side of the stopper portion 22.

When the secondary latch 6 is held in the standby position, the hook portion 62 enters the movement locus of the striker S accompanying the opening / closing operation of the hood H and disengages from the engagement groove 31 of the primary latch 3. By engaging with S from above, the hood H is held in the half-open position, and when the secondary latch 6 is held in the retracted position, the hood H is retracted out of the movement restriction of the striker S and the striker. The hood H can be freely opened and closed at a position where it does not engage with S.

When the hood H is in the fully closed position, the striker S meshes with the engaging groove 31 of the primary latch 3, and the secondary latch 6 is in the standby position, the first detection unit 63 is on the right side surface of the striker S. It is located close to the striker S and is in a position where it can come into contact with the right side surface of the striker S. As a result, when the primary latch 3 is in the latch position, even if the secondary latch 6 is rotated from the standby position in the retracting direction, the first detection unit 63 abuts on the right side surface of the striker S and the secondary latch 6 is brought into contact with the striker S. 6 is prevented from moving from the standby position to the retracted position. Therefore, in the latched state in which the striker S is engaged with the engaging groove 31 of the primary latch 3, the secondary latch 6 cannot be moved from the standby position to the retracted position. As a result, the malfunction of the secondary latch 6 is suppressed.

The second detection unit 64 retracts to the right of the striker entry groove 21 when the secondary latch 6 is held in the standby position, and enters the striker when the secondary latch 6 is held in the retracted position. Enter the groove 21. As a result, when the secondary latch 6 is held in the retracted position by the urging force of the turnover spring 14, the striker S that has entered the striker entry groove 21 from above is tilted as the hood H is closed. By abutting on the upper surface of a certain second detection unit 64, the secondary latch 6 can be forcibly moved from the retracted position to the standby position against the urging force of the turnover spring 14.

The sensing lever 7 is located between the front surface of the base plate 2 and the rear surface of the secondary latch 6, and is connected to the lower part of the secondary latch 6 by a connecting shaft 15 facing in the front-rear direction so as to be rotatable in a predetermined angle in the vertical direction. A spring 16 that is hooked to itself and whose other end is hooked to the secondary latch 6 imparts a counterclockwise urging force to the secondary latch 6 about the connecting shaft 15.

Further, the sensing lever 7 is provided so as to be located around the secondary latch shaft 13, a clearance hole 74 that penetrates the secondary latch shaft 13 so as not to interfere with the secondary latch shaft 13, and a detection unit 71 provided above the clearance hole 74. It has an abutting portion 72 provided diagonally to the lower right of the detection unit 71, and an abutted portion 73 provided below the escape hole 74 and to the right of the rotation center (connecting shaft 15). When the primary latch 3 is in the latch position, the detection unit 71 abuts on the side portion of the striker S engaged with the engagement groove 31 of the primary latch 3 to reach the latch detection position shown in FIG. When the primary latch 3 is held and the primary latch 3 is in the unlatch position and the striker S is in the half-open position (position shown in FIGS. 8 to 11), the latch detection position is centered on the connecting shaft 15 by the urging force of the spring 16. The detection unit 71 is held at the unlatch detection position (position shown in FIGS. 8 to 11) where the detection unit 71 enters the striker entry groove 31 by rotating counterclockwise by a predetermined angle.

Preferably, the connecting shaft 15 which is the rotation center of the sensing lever 7 is arranged diagonally downward to the left of the secondary latch shaft 15 which is the rotation center of the secondary latch 6. By doing so, the release operation described later of the sensing lever 7 can be efficiently transmitted to the secondary latch 6. Further, the sensing lever 7 is provided with the escape hole 74, and the detection unit 71 provided above the escape hole 74, the contact portion 72 also provided on the right side, and the contacted portion 73 provided on the left side are the secondary latch shaft 13. By moving around the hood lock device, the sensing lever 7 can be added to the existing hood lock device without significantly changing the existing hood lock device, so that the cost increase can be minimized. Is possible.

When the sensing lever 7 is held at the latch detection position, the contacted portion 73 has a movement locus of the contact portion 53 provided at the lower end portion of the ratchet 5 (ratchet 5), as can be understood from FIG. When the ratchet shaft 9 is rotated around the ratchet shaft 9 (movement locus of the contact portion 53) and the sensing lever 7 is held at the unlatch detection position, the ratchet is particularly as can be understood from FIG. It enters into the movement locus of the contact portion 53 of 5.

In the state where the sensing lever 7 is held at the latch detection position, the contacted portion 73 is located outside the movement locus of the contact portion 53 of the ratchet 5, and the ratchet is performed by the first release operation of the opener handle 100. Even if 5 rotates in the release direction, the contact portion 53 does not abut against the contacted portion 73, so that the sensing lever 7 does not rotate while staying at the latch detection position. That is, in the first release operation of the opener handle 100, the ratchet 5 is rotated in the release direction to allow the primary latch 3 to rotate from the latch position to the unlatch position.

In the state where the sensing lever 7 is in the unlatch detection position, the contacted portion 73 is in the position where it has entered the contact portion 53 movement locus of the ratchet 5, and the ratchet 5 is released by the second release operation of the opener handle 100. When Move to the right from the detection position. As a result, the secondary latch 6 connected to the sensing lever 7 rotates from the standby position to the retracted position around the secondary latch shaft 13 against the urging force of the turnover spring 14.

Next, the operation of the vehicle hood lock device 1 according to the present embodiment will be described with reference to FIGS. 6 to 14.
As shown in FIG. 6, when the hood H is in the fully closed position, the primary latch 3 of the hood lock device 1 is in the latch position, and the ratchet 5 engages with the engaging portion 33 of the primary latch 3. , The striker S is engaged with the engagement groove 31 of the primary latch 3. In this case, the striker S has a backlash between the lift arm portion 42 of the lift lever 4 and the upper edge of the engagement groove 31 of the primary latch 3 due to the urging force of the lift spring 12 acting on the lift lever 4. It is sandwiched so that it does not occur. The secondary latch 6 is elastically held in the standby position by the urging force of the turnover spring 14. Further, the sensing lever 7 is held at the latch detection position by the detection unit 71 of the sensing lever 7 coming into contact with the side portion of the striker S.

Further, when the hood H is in the fully closed position, the first detection unit 63 of the secondary latch 6 is in a position where it can abut on the right side surface of the striker S, so that the secondary latch 6 moves from the standby position to the retracting direction. Rotation is blocked. Therefore, in this state, the secondary latch 6 does not rotate from the standby position to the retracted position unless the primary latch 3 rotates to the unlatch position.

Further, when the hood H is in the fully closed position, as shown in FIGS. 6 and 13, the sensing lever 7 is held at the latch detection position, so that the contacted portion 73 is the contact portion of the ratchet 5. It is in a position retracted outside the movement locus of 53.

When the opener handle 100 is released for the first time in the fully closed state of the hood H (the state shown in FIG. 6), the release operation is transmitted to the ratchet 5 via the operating force transmission member 11. As a result, the ratchet 5 is rotated by a predetermined angle from the engagement position shown in FIG. 6 in the release direction (counterclockwise direction) about the ratchet shaft 9, and the claw portion 51 is the primary as shown in FIGS. It rotates to the release position disengaged from the engaging portion 33 of the latch 3. The release operation of the ratchet 5 by the first release operation of the opener handle 100 is performed because the contacted portion 73 of the sensing lever 7 is retracted out of the movement locus of the contact portion 53 of the ratchet 5. The release operation is not transmitted to the sensing lever 7.

When the claw portion 51 of the ratchet 5 is disengaged from the engaging portion 33 of the primary latch 3, the primary latch 3 is moved from the latch position shown in FIG. 6 to the position shown in FIG. 7 by the urging force of the lift spring 12 acting on the lift lever 4. The hood H is lifted to the half-open position by rotating to the unlatch position shown in FIG. 8 and raising the striker S by the rotation. Since the raised striker S is in the half-open position as shown in FIG. 8 and can be engaged with the hook portion 62 of the secondary latch 6 from below, the hood H is held in the half-open position.

In the state shown in FIG. 8, the striker S rises to the half-open position, and the contact relationship between the detection unit 71 of the sensing lever 7 and the striker S is eliminated. Therefore, the sensing lever 7 is a spring. The urging force of 16 attempts to rotate from the latch detection position to the unlatch detection position, but in this state, the contact portion 53 of the ratchet 5 is the sensing lever 7 with the ratchet 5 released. Since it is in a position in contact with the upper side of the contacted portion 73, the rotation of the sensing lever 7 to the unlatch detection position is blocked on the way.

Subsequently, when the opener handle 100 is returned from the release operation position to the non-operation position, the ratchet 5 is rotated from the release position to the engagement direction by the urging force of the ratchet spring 10. As a result, as shown in FIGS. 9 and 14, the contact portion 53 of the ratchet 5 moves to the left (right in FIG. 14) and comes off from the upper side of the contact portion 73 of the sensing lever 7. The sensing lever 7 is slightly rotated counterclockwise (upward) about the connecting shaft 15 by the urging force of the spring 16 and stopped at the unlatch detection position, and the contacted portion 73 is the contact portion of the ratchet 5. Enter the movement locus of 53.

Subsequently, when the opener handle 100 is subjected to the second release operation, as shown in FIG. 10, the ratchet 5 again rotates in the release direction against the urging force of the ratchet spring 10. The contact portion 53 comes into contact with the contacted portion 73 of the sensing lever 7 from the left side. As a result, the sensing lever 7 moves to the right, and the secondary latch 6 connected to the sensing lever 7 by the connecting shaft 15 resists the urging force of the turnover spring 14 and is centered on the secondary latch shaft 13. It rotates counterclockwise from the standby position by a predetermined angle, moves to the retracted position, and is held at the retracted position.

After that, the hood H can be easily opened by returning the opener handle 100 to the non-operation position again, moving the user to the front side of the hood H, and lifting the front end portion of the hood H as it is. Therefore, it is not necessary to insert a hand between the hood H and the vehicle body and search for the operation unit of the secondary latch by fumbling as in the conventional case.

As shown in FIG. 11, when the hood H is open, the primary latch 3 is held in the unlatch position, the secondary latch 6 is held in the retracted position, and the sensing lever 7 is held in the unlatch detection position. There is. When the hood H is closed in this state, the striker S enters the striker entry groove 21 from above, passes by the side of the hook portion 62 in the secondary latch 6, and engages with the engagement groove 31 of the primary latch 3. At the same time, it comes into contact with the second detection unit 64 of the secondary latch 6. As a result, as shown in FIG. 12, the secondary latch 6 rotates from the retracted position to the standby position against the urging force of the turnover spring 14. Further, the sensing lever 7 rotates toward the latch detection position together with the secondary latch 6 when the contact portion 72 abuts on the contacted portion 65 of the secondary latch 6.

Then, when the striker S further enters the striker entry groove 21, the primary latch 3 rotates toward the latch position against the urging force of the lift spring 12, and the claw portion 51 of the ratchet 5 is a ratchet spring. The urging force of 10 engages with the engaging portion 33 of the primary latch 3. Further, in parallel with this, the striker S abuts on the upper end of the inclined shape of the detection unit 71 in the sensing lever 7, so that the sensing lever 7 further rotates clockwise against the urging force of the spring 16. Then, it rotates to the unlatch detection position. As a result, the hood lock device 1 is in the latch state shown in FIG. 6, and the hood H is held in the fully closed position.

As described above, in the present embodiment, the rotation of the primary latch 3 from the latch position to the unlatch position is permitted by the release operation of the ratchet 5 based on the first release operation of the opener handle 100 in one direction. Subsequently, the secondary latch 6 is rotated from the standby position to the retracted position via the sensing lever 7 by the release operation of the ratchet 5 based on the second release operation of the opener handle 100 in one direction, and the retracted position. With a single operating force transmitting member 11, the opener handle 100 can be released to switch the primary latch mechanism to the unlatch state and the secondary latch 6 to the retracted position. .. Therefore, the user can easily open the hood H from the outside of the vehicle without having to insert his / her hand into the narrow space between the vehicle body and the hood H and search for the operation unit of the secondary latch by fumbling.

1 Hood lock device 2 Base plate 21 Striker entry groove 22 Stopper part 3 Primary latch 31 Engagement groove 32 Lower arm part 33 Engagement part 34 Protrusion part 4 Lift lever 41 Connecting hole 42 Lift arm part 5 Ratchet 51 Claw part 52 Connecting part 53 Contact part 6 Secondary latch 61 Arm part 62 Hook part 63 First detection part 64 Second detection part 65 Contacted part 7 Sensing lever 71 Detection part 72 Contact part 73 Contacted part 74 Relief hole 8 Latch shaft 9 Ratchet Shaft 10 Ratchet spring 11 Operating force transmission member 12 Lift spring 13 Secondary latch shaft 14 Turnover spring 14a One arm part 14b The other arm part 15 Connecting shaft 16 Spring 100 Opener handle (release operation means) H Hood S Striker V Vehicle

Claims (8)

A striker installed on the hood that can be opened and closed on the car body,
A base plate having a striker entry groove that is fixed to the vehicle body and that the striker enters with the closing operation of the hood and exits with the opening operation.
A primary latch that is rotatably supported by the base plate and is movable to a latch position engaged with the striker that has entered the striker entry groove and an unlatch position that is detached from the striker.
The primary latch is held in the latch position by being rotatably supported by the base plate by a predetermined angle and engaged with the primary latch, and the primary is released by the release operation based on the operation of the release operation means provided at the predetermined position. A ratchet that allows the latch to move from the latch position to the unlatch position,
When the striker is supported by the base plate so as to be rotatable by a predetermined angle and the striker is in a half-open position slightly open from the fully closed position, the standby position where the striker can be engaged is changed to the retracted position where the striker cannot be engaged. A secondary latch that is movable and elastically held in each position by urging means,
When the primary latch is in the latch position, it is held in a latch detection position that is not interlocked with the ratchet release operation by contacting the striker, the primary latch is in the unlatch position, and the striker is in the half-open position. A sensing lever that can be moved to an unlatch detection position that can be interlocked with the ratchet release operation by moving away from the striker.
When the primary latch is in the latch position, the release operation of the ratchet based on the first release operation of the release operation means enables the movement of the primary latch from the latch position to the unlatch position, and the release operation means of the release operation means. A vehicle hood lock device characterized in that the sensing lever is interlocked to move the secondary latch from the standby position to the retracted position by the release operation of the ratchet based on the second release operation. The vehicle hood lock according to claim 1, wherein the sensing lever has a detection unit that enters the striker entry groove when it is in the unlatch detection position and comes into contact with the striker when it is in the latch detection position. Device. When the sensing lever is in the latch detection position, even if the ratchet is released, it cannot contact the contact portion provided on the ratchet, and when it is in the unlatch detection position, the ratchet is released. The vehicle hood lock device according to claim 1 or 2, further comprising a contacted portion that can be interlocked with the ratchet release operation by abutting on the abutting portion. The vehicle hood lock device according to any one of claims 1 to 3, wherein the sensing lever is rotatably connected to the secondary latch by a predetermined angle. The vehicle hood lock device according to claim 4, wherein the sensing lever is constantly urged in the direction of the unlatch detection position by a spring acting between itself and the secondary latch. The vehicle hood lock device according to claim 4 or 5, wherein the center of rotation of the sensing lever is set below the rotation axis of the secondary latch. The invention according to any one of claims 4 to 6, wherein the sensing lever is arranged between the base plate and the secondary latch and moves around the rotation axis of the secondary latch. Vehicle hood lock device. The urging means has one end hooked on the secondary latch and the other end hooked on the base plate, with the intermediate position between the standby position and the retracted position of the secondary latch as a boundary. The vehicle hood lock device according to any one of claims 1 to 7, wherein the turnover spring is provided so that the urging direction of the urging force applied to the secondary latch is reversed.

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