JP6625917B2 - Vehicle hood lock device - Google Patents

Description

  The present invention relates to a hood lock device for a vehicle, and more particularly to a hood lock device for a vehicle that prevents an opening operation of a hood when the vehicle travels.

  Conventionally, an engine room provided at the front of a vehicle is closed by a hood, and a hood striker disposed at a lower surface of a front end of the hood is locked by a hood lock device on a vehicle body side, so that the hood is closed. It is prevented from opening.

  A vehicle hood lock device described in Patent Document 1 will be described with reference to FIG. The hood lock device 100 shown in this figure includes a latch 101 for locking a striker 107, a release lever 108 for controlling the rotation of the latch 101, and a lock lever 103 for locking the striker 107 released from the latch 101. Mainly prepared. These members are rotatably provided on the base plate 109 and are urged in a predetermined direction by a spring (not shown). In a normal state, the hood (not shown) closes the engine room by the latch 101 holding the striker 107.

  When the lock by the hood lock device 100 is released, the occupant operates an operation lever (not shown) in the vehicle compartment, so that the wire 106 is pulled. When the wire 106 is pulled, the release lever 108 rotates, and the latch 101 rotates in the release direction, whereby the striker 107 is disengaged from the locking recess 102 of the latch 101. The detached striker 107 is locked by the hook lever portion 104 of the lock lever 103. At this time, the hood is in a half-open state slightly opened from the fully closed position.

  In this half-open state, when the operator operates the safety lever unit 105 integrated with the hook lever unit 104 from outside the vehicle and lifts it upward, the hook lever unit 104 rotates clockwise. As a result, the locking between the hook lever portion 104 and the striker 107 is released, and the operator can lift the hood (not shown) upward.

  Patent Literature 2 discloses a latch 110 that can bring a hood into a fully opened state by an operation from a vehicle interior. The configuration and operation of the latch 110 will be described with reference to FIG. 12A shows the latch 110 in the primary closed position, FIG. 12B shows the latch 110 in the secondary closed position, and FIG. 12C shows the latch 110 in the open position.

  Referring to FIG. 12A, latch 110 mainly has a ratchet 112 for locking striker 113 and a claw 111 for controlling rotation of ratchet 112. Further, the ratchet 112 and the claw 111 are rotatably provided in the housing 114, and are urged in a predetermined direction by a spring (not shown). The operation of the claw 111 is controlled by a cable 115 connected to an operation lever (not shown) in the vehicle interior.

  In the primary lock state shown in this figure, the primary lock surface 118 of the ratchet 112 contacts the claw lock surface 117 of the claw 111. As a result, the striker 113 is locked to the ratchet 112 in a state where the housing 114 is housed in the fish mouth 116 that is opened in the vertical direction.

  Referring to FIG. 12 (B), when the operator in the vehicle cabin pulls cable 115 by operating an operation lever (not shown) in the primary lock state, claw 111 rotates clockwise, and accordingly, The ratchet 112 also rotates clockwise. As a result, the secondary lock surface 119 of the ratchet 112 and the pawl lock surface 117 of the pawl 111 come into contact with each other, and the secondary lock state is established. In the secondary lock state, the ratchet 112 holds the striker 113 above the primary lock state.

  Referring to FIG. 12 (C), when the operator pulls the cable 115 by operating the operation lever again in the secondary lock state, the pawl 111 remains clockwise and the ratchet is kept. The rotation of 112 is not hindered. Specifically, the claw lock surface 117 of the claw 111 does not contact the primary lock surface 118 and the secondary lock surface 119 of the ratchet 112. As a result, the engagement of the striker 113 is released by rotating the ratchet 112 clockwise, and the operator can open a hood (not shown).

JP 2011-174246 A JP-A-2005-510060

  However, in the hood lock device 100 described in Patent Literature 1, the operator needs to move out of the vehicle and operate the safety lever unit 105 to fully open the hood. There is a problem that the operation for setting the state is complicated. When operating the safety lever unit 105, the operator operates the safety lever unit 105 by inserting his / her finger from the gap between the tip of the hood and the vehicle body. For this reason, the tip of the hood and the hood lock device 100 could not be separated from each other, which hindered the degree of freedom in vehicle design. Further, if the safety lever 105 of the hood lock device 100 is extended to the tip of the hood in order to secure this degree of freedom, there is a problem that the safety lever 105 vibrates during traveling of the vehicle to generate noise. Is expected to occur.

  Further, in the latch 110 described in Patent Literature 2, the latch 110 can be fully opened by an operation from the vehicle interior. However, if the closing operation of the hood by the operator is not sufficient and the vehicle travels with the latch 110 fully opened, the hood is inadvertently opened during the traveling of the vehicle, and the vehicle travels during traveling. There was a risk that safety would not be ensured.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to allow the vehicle to be fully opened by an operation from the vehicle interior, and to perform an inadvertent opening operation of the hood during traveling of the vehicle. It is an object of the present invention to provide a hood lock device for a vehicle, which prevents the hood lock.

  The present invention is directed to a fully closed state in which a hood striker fixed to a hood is locked by rotation of a latch due to displacement of a release lever caused by operation of an operator riding in a vehicle, and the lock is partially locked. A hood lock device for a vehicle, which can switch between a semi-closed state released to a full open state in which the lock is released and the hood can be opened, wherein one end is pivotally supported and the other end is A locking portion for locking with the food striker is formed, and an auxiliary hook urged in a direction to press the food striker downward, and one end side is pivotally supported at a position facing the auxiliary hook, An auxiliary lever is provided, the end side of which is disposed at a position where it can come into contact with the locking portion of the auxiliary hook, and is urged to return to the neutral position.

  Further, in the vehicle hood lock device of the present invention, if the hood striker is disposed above the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever is connected to the auxiliary The hook comes into contact with the locking portion from above.

  Further, in the vehicle hood lock device of the present invention, the contact portion of the auxiliary lever that contacts the auxiliary hook or the contact portion of the auxiliary hook that contacts the auxiliary lever has a curved shape. I do.

Further, in the vehicle hood lock device of the present invention, when the hood striker is disposed below the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever becomes It is characterized in that the hook comes into contact with the locking portion from below.
Further, in the vehicle hood lock device of the present invention, when the pressing force of the hood striker due to the weight of the hood acts, the auxiliary hook rotates in a direction away from the hood striker and then approaches the hood striker. And engages with the hood striker.

  The present invention is directed to a fully closed state in which a hood striker fixed to a hood is locked by rotation of a latch due to displacement of a release lever caused by operation of an operator riding in a vehicle, and the lock is partially locked. A hood lock device for a vehicle, which can switch between a semi-closed state released to a full open state in which the lock is released and the hood can be opened, wherein one end is pivotally supported and the other end is A locking portion for locking with the food striker is formed, and an auxiliary hook urged in a direction to press the food striker downward, and one end side is pivotally supported at a position facing the auxiliary hook, An auxiliary lever is provided, the end side of which is disposed at a position where it can come into contact with the locking portion of the auxiliary hook, and is urged to return to the neutral position. Therefore, in the vehicle hood lock device of the present invention, the locking portion of the auxiliary hook locks the hood striker even in the fully opened state in which the hood striker is unlocked by the operation of the occupant. For this reason, even if the occupant runs the vehicle in this state, the hood is prevented from being opened during running. Therefore, safety during traveling of the vehicle can be improved.

  Further, in the vehicle hood lock device of the present invention, if the hood striker is disposed above the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever is connected to the auxiliary The hook comes into contact with the locking portion from above. Therefore, when the hood striker descends due to the weight of the hood, the hood striker pushes the other end of the auxiliary lever from above. Then, the other end of the auxiliary lever pushes the other end of the auxiliary hook from above, and the auxiliary hook rotates in a direction away from the hood striker. Thereafter, the hood striker that has moved downward is locked by the locking portion of the auxiliary hook, thereby preventing the hood from opening during traveling.

  Further, in the vehicle hood lock device of the present invention, the contact portion of the auxiliary lever that contacts the auxiliary hook or the contact portion of the auxiliary hook that contacts the auxiliary lever has a curved shape. I do. Therefore, when the contact portion of either the auxiliary hook or the auxiliary lever has a curved shape, the auxiliary hook rotates outward, and then the engagement of the auxiliary hook that rotates inward. The hood striker can be locked at the stop.

  Further, in the vehicle hood lock device of the present invention, when the hood striker is disposed below the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever is connected to the auxiliary It is characterized in that the hook comes into contact with the locking portion from below. Therefore, when the hood striker rises when the hood is opened, the hood striker pushes the other end of the auxiliary lever from below. In such a case, the other end of the auxiliary lever pushes the other end of the auxiliary hook from below, and the auxiliary hook rotates in a direction away from the hood striker. Therefore, the rise of the hood striker is not hindered by the auxiliary hook, and the opening operation of the hood is not hindered by the auxiliary hook.

  Further, in the vehicle hood lock device of the present invention, when the pressing force of the hood striker due to the weight of the hood acts, the auxiliary hook rotates in a direction away from the hood striker and then approaches the hood striker. And engages with the hood striker. Therefore, the hood striker can be locked by the auxiliary hook by using the pressing force of the hood by its own weight, so that the hood is prevented from being opened while the vehicle is running.

1 is a perspective view showing a front portion of a vehicle provided with a vehicle hood lock device according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the hood lock device for vehicles which concerns on embodiment of this invention, (A) is a figure which shows the hood lock device for vehicles of a fully closed state, (B) is each figure which comprises the hood lock device for vehicles. It is a figure which shows a member separated in the thickness direction. It is a figure showing the hood lock device for vehicles concerning an embodiment of the present invention, and (A) and (B) are the figures showing the situation where the hood striker moves below. It is a figure showing the food lock device for vehicles concerning an embodiment of the present invention, and is a figure showing behavior of an auxiliary hook and an auxiliary lever at the time of lowering of a food striker. It is a figure which shows the hood lock device for vehicles which concerns on embodiment of this invention, (A) is a figure which shows the state in which the hood striker was latched by the auxiliary hook, (B) The auxiliary hook is a hood striker. It is a figure which shows the structure which latches in detail. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the hood lock device for vehicles which concerns on embodiment of this invention, (A) is a figure which shows the hood lock device in the half closed state, (B) is the hood lock device in the fully closed state. FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the hood lock device for vehicles which concerns on embodiment of this invention, (A) is a figure which shows the hood lock device in a fully closed state, (B) is a figure which shows the hood lock device in a half closed state. FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the hood lock device for vehicles which concerns on embodiment of this invention, (A) is a figure which shows the hood lock device in the fully opened state, (B) is an auxiliary hook and auxiliary | assistant at the time of raising of a food striker. It is a figure showing behavior of a lever. It is a figure showing the hood lock device for vehicles concerning an embodiment of the present invention, and (A) and (B) are figures showing the situation where a hood striker climbs over an auxiliary hook and an auxiliary lever. It is a figure which shows the food lock device for vehicles which concerns on embodiment of this invention, and is a figure which shows the food lock device after the food striker moved upward. It is a front view showing the hood lock device concerning background art. It is a figure which shows the latch concerning background art, (A) shows a primary closed position, (B) shows a secondary chain position, (C) shows an open position.

  Hereinafter, the configuration of the hood lock device 20 of the present embodiment will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a front portion of a vehicle 10 provided with a hood lock device 20 of the present embodiment. Here, the vehicle 10 with the hood 11 opened is shown. Referring to FIG. 1, an engine room 13 formed in a front portion of vehicle 10 is closed by hood 11 from above. The rear part of the hood 11 is attached to the vehicle body via a hinge mechanism so as to be openable and closable. On the lower surface near the front end of the hood 11, a hood striker 12 made of a substantially U-shaped round bar is fixed by welding or caulking.

  A hood lock device 20 (vehicle hood lock device) is provided on a vehicle body side of a portion corresponding to the hood striker 12. The hood lock device 20 is disposed, for example, at the center of a radiator core support (not shown) disposed in front of the engine room 13.

  As described later, in the hood lock device 20 of the present embodiment, the lock state of the hood lock device 20 can be changed by an operation of an operator in the vehicle cabin. Specifically, the state of the hood lock device 20 may be a fully closed state in which the hood striker 12 is locked, a semi-closed state in which the lock is partially released, and an opening operation of the hood 11 in which the lock is released. It can be changed to the fully open state. Therefore, in this embodiment, the lock of the hood striker 12 by the hood lock device 20 can be released without the operator operating the hood lock device 20 outside the vehicle. The hood lock device 20 of the present embodiment may be referred to as a double-action hood lock device.

  The structure of the hood lock device 20 of the present embodiment will be described in detail with reference to FIG. FIG. 2A is a diagram illustrating the hood lock device 20, and FIG. 2B is a diagram illustrating components of the hood lock device 20 separated from each other in a thickness direction. FIG. 2A shows a fully closed state in which the hood striker 12 is locked when the hood 11 is closed.

  2A, the hood lock device 20 includes a latch 22 that engages with the hood striker 12, a release lever 23 that regulates the position of the latch 22 in the rotation direction, and a hood above the latch 22. An auxiliary hook 24 for locking the striker 12 and an auxiliary lever 25 for assisting the locking operation of the auxiliary hook 24 are mainly provided. Each of these members is supported by the base plate 21. Here, the latch 22 and the release lever 23 are a lock mechanism that holds the hood striker 12 to close the hood 11. On the other hand, the auxiliary hook 24 and the auxiliary lever 25 are a temporary fixing mechanism for preventing the hood 11 from being opened carelessly during traveling of the vehicle.

  The latch 22 is made of a steel plate or the like formed into a predetermined shape, and has an engagement portion 31 that engages with the hood striker 12 by opening a left portion thereof. Further, on both sides of the engagement portion 31, a contact portion 29 and a contact portion 30 that contact the release lever 23 are formed. The latch 22 is supported by the base plate 21 via a support shaft 37. A biasing force (not shown) is applied to the latch 22 by a biasing means (not shown) so as to rotate clockwise. As the biasing means, for example, a spring wound along the support shaft 37 is employed. Further, as the urging means, a spring that pulls the latch 22 from the side may be employed. The same applies to other members (the release lever 23, the auxiliary hook 24, and the auxiliary lever 25) on which the urging force acts.

  The release lever 23 is made of a substantially rectangular steel plate elongated in the vertical direction, and has a contact portion 28 on the right side. The contact portion 28 is a side surface that contacts the contact portion 29 and the contact portion 30 of the latch 22 described above. The release lever 23 is supported by the base plate 21 via a support shaft 38. The release lever 23 is biased by a spring (not shown) to rotate counterclockwise. Near the lower end of the release lever 23, a wire 36 connected to an operation lever in the vehicle compartment is connected. When the operator operates the lever in the passenger compartment and pulls the wire 36 to the left, the release lever 23 rotates clockwise.

  The auxiliary hook 24 is a member made of a steel plate pivotally supported by the base plate 21, and has a locking portion 27 formed by notching a lower surface on the free end side in a concave shape. The locking portion 27 temporarily fixes the hood striker 12 released from engagement with the latch 22 above the latch 22. The auxiliary hook 24 is pivotally supported via a support shaft 37 similarly to the latch 22, and a counterclockwise urging force is applied by a spring (not shown). Further, the urging force of the spring for urging the auxiliary hook 24 counterclockwise is such that the auxiliary hook 24 rotates clockwise when the weight of the hood 11 acts from above, as described later. .

  The auxiliary lever 25 is a member made of a steel plate supported by the base plate 21 at a position facing the auxiliary hook 24 in the left-right direction. The free end of the auxiliary lever 25 is arranged at a position where it contacts the free end of the auxiliary hook 24. The auxiliary lever 25 is rotatably supported via a support shaft 38, and is urged by a spring (not shown) to return to the neutral position shown in FIG. More specifically, the auxiliary lever 25 is rotatable clockwise and counterclockwise, and is urged to return to the original neutral position in any direction.

  The base plate 21 is a steel plate attached to the vehicle body of the vehicle 10, and rotatably supports each of the above-described portions. The opening 26 is formed by opening the base plate 21 along the vertical direction. The opening 26 has a function of storing the food striker 12 to be locked.

  The operation of the hood lock device 20 will be described below. Hereinafter, an operation of bringing the hood lock device 20 from the fully open state to the fully closed state in order to perform the closing operation of the hood will be described with reference to FIGS. In addition, an operation of changing the hood lock device 20 from the fully closed state to the fully opened state in order to open the hood 11 will be described with reference to FIGS.

  First, an operation of changing the hood lock device 20 from the fully opened state to the fully closed state will be described with reference to FIGS.

  Referring to FIG. 3A, when hood 11 (not shown) is open, hood striker 12 is disposed above hood lock device 20. That is, the hood striker 12 is not engaged with the latch 22 and is not locked by the auxiliary hook 24. The free end of the auxiliary lever 25 is in contact with the free end of the auxiliary hook 24 from above. Further, in this state, the latch 22 is not locked by the release lever 23 and is in the fully open position.

  Next, referring to FIG. 3B, the own weight of the hood 11 acts on the hood lock device 20 via the hood striker 12 as the operator closes the hood 11. As a result, the hood striker 12 moves below the free ends of the auxiliary hook 24 and the auxiliary lever 25.

  Specifically, the shapes of the auxiliary hook 24 and the auxiliary lever 25, their relative positions, and the urging force of the spring for urging them are set so as not to hinder the lowering of the hood striker 12 due to the weight of the hood 11. ing. Specifically, the shapes and the like of the auxiliary hook 24 and the auxiliary lever 25 are set so that the auxiliary hook 24 rotates clockwise, which is the opening direction, by the pressing force of the hood striker 12 due to the weight of the hood 11. I have. In this figure, the directions in which the auxiliary hook 24 and the auxiliary lever 25 rotate are indicated by arrows.

  With reference to FIG. 4, the principle that the auxiliary hook 24 rotates in the opening direction by the pressing force of the hood striker 12 due to the weight of the hood 11 will be described. Here, the contact portion 32 on the free end side of the auxiliary hook 24 has a curved shape that expands toward the auxiliary lever 25 side. The contact portion 33 of the auxiliary lever 25 that contacts the auxiliary hook 24 has a curved shape that expands toward the auxiliary hook 24 side.

  When the hood striker 12 presses the auxiliary lever 25 downward, the auxiliary lever 25 rotates clockwise, and the contact portion 33 of the auxiliary lever 25 presses the contact portion 32 of the auxiliary hook 24 from above. In such a case, the contact portion 33 of the auxiliary lever 25 and the contact portion 32 of the auxiliary hook 24 slide, the auxiliary hook 24 rotates clockwise, which is an opening direction, and the auxiliary hook 24 Leave 12 As a result, the food striker 12 can move downward over the auxiliary hook 24.

  Referring to FIG. 5A, the hood striker 12 rides over the free end of the auxiliary hook 24 and is disposed below the locking portion 27 of the auxiliary hook 24 by the weight of the hood 11 as described above. Further, since the auxiliary hook 24 is biased counterclockwise, the auxiliary hook 24 rotates counterclockwise so as to approach the hood striker 12. As a result, the locking portion 27 of the auxiliary hook 24 is in contact with the hood striker 12 from above. In this state, the hood striker 12 is supported from below by the contact portion 30 of the latch 22, and further supported by the auxiliary lever 25 from below. Therefore, in this state, since the hood striker 12 is locked by the locking portion 27 of the auxiliary hook 24, the opening operation of the hood 11 is prevented.

  Further, as shown in FIG. 5B, when the auxiliary hook 24 locks the hood striker 12, the hood striker 12 and the locking portion 27 overlap in the vertical direction. The length L10 at which the locking portion 27 and the food striker 12 overlap is, for example, equal to or greater than the radius of the food striker 12. By doing so, the hood striker 12 is securely locked by the locking portion 27 of the auxiliary hook 24, and the hood striker 12 is prevented from coming off the locking portion 27.

  From the above, in the present embodiment, when the hood lock device 20 is in the fully opened state illustrated in FIG. 3A, even if the operator does not perform the closing operation of the hood 11, the state illustrated in FIG. Thus, the hood striker 12 is locked to the auxiliary hook 24 by the weight of the hood 11. Therefore, even if the vehicle 10 travels in this state, the hood 11 is prevented from opening during traveling of the vehicle.

  When the operator pushes down the hood 11 from the state shown in FIG. 5A, the latch 22 rotates counterclockwise. As the latch 22 rotates counterclockwise, the contact portion 39 of the latch 22 presses the contact portion 40 of the release lever 23 to the left, and the release lever 23 rotates clockwise about the support shaft 38. Move.

  Referring to FIG. 6A, when the hood striker 12 is further lowered by pushing down the hood 11, the latch 22 further rotates counterclockwise, and the contact portion 30 of the latch 22 It comes into contact with the contact portion 28. As described above, the latch 22 is urged counterclockwise, but the position of the latch 22 in the rotation direction is fixed by the contact, and the hood 11 is in a semi-closed state in which the hood 11 is slightly opened.

  In the semi-closed state, the hood striker 12 is housed in the opening 26 and is engaged by the engaging portion 31 of the latch 22. In this half-closed state, the hood striker 12 is separated from the auxiliary hook 24. The auxiliary lever 25 is further rotated clockwise by being pushed downward by the hood striker 12.

  When the hood 11 is further pushed down in the state of FIG. 6A, the hood striker 12 is lowered inside the opening 26, and the latch 22 is rotated counterclockwise. As the latch 22 rotates counterclockwise, the contact portion 41 of the latch 22 pushes the contact portion 40 of the release lever 23 to the left, and the release lever 23 rotates clockwise about the support shaft 38. To rotate slightly.

  Referring to FIG. 6B, when the hood 11 is continuously pressed down, the hood striker 12 is lowered to near the lower end of the opening 26. Accordingly, the latch 22 further rotates counterclockwise, and the contact portion 29 of the latch 22 contacts the contact portion 28 of the release lever 23, whereby the position of the latch 22 in the rotation direction is fixed. Further, the vertical position of the hood striker 12 is also fixed. As a result, the engine room 13 is completely closed by the hood 11.

  In the fully closed state, the free end of the auxiliary lever 25 is located below the locking portion 27 formed at the free end of the auxiliary hook 24. By doing so, as described later, when the hood 11 is opened, the hood striker 12 that rises with the hood 11 is not locked by the locking portion 27 of the auxiliary hook 24, and The opening operation is not hindered by the auxiliary hook 24.

  In the hood lock device 20 of the present embodiment, the hood 11 is fully opened by the rotation of the latch 22, so that the urging force applied to the latch 22 is equal to or more than its own weight. For this reason, when the force for pushing down the hood 11 is insufficient when the hood 11 is closed, the latch 22 does not sufficiently rotate counterclockwise, and the hood lock device 20 is turned off as shown in FIG. May not be reached. Even in such a case, as shown in FIG. 5A, since the auxiliary hook 24 locks the hood striker 12, even if the vehicle travels, the hood 11 is opened during traveling. Is prevented.

  Next, a method of opening the hood 11 will be described with reference to FIGS.

  First, in the fully closed state shown in FIG. 7A, the operator operates an operation lever or the like (not shown) in the vehicle interior to pull the wire 36 to the left. By doing so, the release lever 23 rotates clockwise, the contact between the contact portion 28 of the release lever 23 and the contact portion 29 of the latch 22 is released, and the latch 22 rotates clockwise. I do.

  7B, when the latch 22 rotates clockwise, the contact portion 30 of the latch 22 contacts the contact portion 28 of the release lever 23, and the position of the latch 22 in the rotation direction is changed. Fixed. With the rotation of the latch 22, the hood striker 12 is also fixed at the raised position, and a half-closed state in which the hood 11 is slightly opened is realized.

  In the state shown in FIG. 7B, when the operator again operates the operation lever or the like in the vehicle compartment and pulls the wire 36 to the left, the release lever 23 rotates clockwise, and the release lever 23 The contact portion 28 and the contact portion 30 of the latch 22 do not contact each other. As a result, the latch 22 rotates clockwise, and the hood striker 12 rises inside the opening 26.

  As shown in FIG. 8A, when the latch 22 rotates as described above, the hood striker 12 is not engaged with the engaging portion 31 of the latch 22, and the hood 11 can be fully opened. State. When the hood 11 is opened in this state, the hood striker 12 moves up together with the hood 11.

  With reference to FIG. 8 (B), a description will be given of a matter in which the hood striker 12 climbs over the auxiliary lever 25 and the auxiliary hook 24. Referring to this figure, auxiliary lever 25 has a fixed end supported by a support shaft 38, and a free end opposite to the fixed end. Similarly, the auxiliary hook 24 has a fixed end supported by the support shaft 37 and a free end opposite to the fixed end. Here, the free end of the auxiliary lever 25 is in contact with the locking portion 27 formed at the free end of the auxiliary hook 24 from below. The contact portion 34 of the auxiliary lever 25 that contacts the auxiliary hook 24 has a curved surface that bulges upward.

  Therefore, when the hood striker 12 rises with the opening operation of the hood 11, first, the hood striker 12 pushes the lower surface on the free end side of the auxiliary lever 25 upward. Then, the auxiliary lever 25 rotates counterclockwise, and the free end of the auxiliary lever 25 pushes the locking portion 27 of the auxiliary hook 24 from below. Accordingly, the auxiliary hook 24 rotates clockwise, and the locking portion 27 formed at the free end of the auxiliary hook 24 moves away from the hood striker 12. Further, as described above, since the contact portion 34 of the auxiliary lever 25 has a curved surface that bulges upward, the auxiliary lever 25 does not catch on the locking portion 27 of the auxiliary hook 24. Therefore, when the hood 11 is opened, the hood striker 12 is not locked by the locking portion 27 of the auxiliary hook 24.

  Referring to FIG. 9A, when the opening operation of the hood 11 is further continued, the auxiliary lever 25 rotates counterclockwise, and the auxiliary hook 24 rotates clockwise. 12 can be raised. As shown in FIG. 9B, when the hood striker 12 further rises, the auxiliary hook 24 rotates counterclockwise and returns to the reference position. On the other hand, the auxiliary lever 25 is further counterclockwise rotated by being pushed by the hood striker 12 from below.

  As shown in FIG. 10, when the hood striker 12 further rises, the auxiliary lever 25 rotates clockwise away from the hood striker 12, and the free end of the auxiliary lever 25 is connected to the free end of the auxiliary hook 24 from above. Come into contact. In this state, the operator can open the hood 11 and inspect the engine room 13 as shown in FIG.

  As mentioned above, although the embodiment of the present invention was shown, the present invention is not limited to the above-mentioned embodiment.

  For example, referring to FIG. 1, when the vehicle 10 is provided with a gas stay that facilitates the opening operation of the hood 11, the downward pressing force of the hood striker 12 decreases with reference to FIG. . Even in such a case, the hood striker 12 is locked to the auxiliary hook 24 by the weight of the hood 11 by adjusting the urging force of the spring that urges the auxiliary hook 24 and the auxiliary lever 25, and the hood 11 is inadvertent. Opening operation is prevented.

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Hood 12 Hood striker 13 Engine room 20 Hood lock device 21 Base plate 22 Latch 23 Release lever 24 Auxiliary hook 25 Auxiliary lever 26 Opening 27 Locking part 28 Contact part 29 Contact part 30 Contact part 31 Engaging part 32 contact part 33 contact part 34 contact part 35 contact part 36 wire 37 support shaft 38 support shaft 39 contact part 40 contact part 41 contact part 100 food lock device 101 latch 102 locking recess 103 lock lever 104 hook lever part 105 safety lever part 106 wire 107 striker 108 release lever 109 base plate 110 latch 111 claw 112 ratchet 113 striker 114 housing 115 cable 116 fish mouth part 117 claw lock surface 118 primary lock surface 119 secondary lock surface

Claims (5)

The displacement of the release lever caused by the operation of the operator in the vehicle causes the latch to rotate, whereby the hood striker fixed to the hood is locked, and the lock is partially released. A vehicle hood lock device capable of switching between a semi-closed state and a fully opened state where the lock is released and the hood can be opened,
One end is pivotally supported, the other end is formed with a locking portion for locking with the hood striker, and an auxiliary hook urged in a direction to press the hood striker downward,
An auxiliary lever that is pivotally supported at a position where one end is opposed to the auxiliary hook, and is disposed at a position where the other end can contact the locking portion of the auxiliary hook, and is urged to return to a neutral position;
A hood lock device for a vehicle, comprising:   When the hood striker is disposed above the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever is positioned from above with respect to the locking portion of the auxiliary hook. The hood lock device for a vehicle according to claim 1, wherein the hood lock device is in contact with the hood lock device.   The vehicle according to claim 1, wherein a contact portion of the auxiliary lever that contacts the auxiliary hook or a contact portion of the auxiliary hook that contacts the auxiliary lever has a curved shape. Hood lock device.   When the hood striker is disposed below the other end of the auxiliary hook and the other end of the auxiliary lever, the other end of the auxiliary lever is positioned below the auxiliary hook with respect to the locking portion. The hood lock device for a vehicle according to any one of claims 1 to 3, wherein the hood lock device is in contact with the hood lock device. When the pressing force of the hood striker due to the weight of the hood acts, the auxiliary hook rotates in a direction away from the hood striker, and then rotates in a direction approaching the hood striker to engage with the hood striker. The vehicle hood lock device according to any one of claims 1 to 4, wherein:

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