Locking device for opening / closing member for vehicle

Abstract

The invention provides a locking device for an opening and closing member for a vehicle, which cannot be opened from a fully locked state through one operation. The locking device comprises a latch, a pawl, an opening rod for rotating the pawl, and a sub-rod capable of rotating relative to the opening rod. A latch is provided with a half-lock clamping part and a full-lock clamping part which are sequentially arranged in the circumferential direction, and a pawl rotates in one direction as the pawl is sequentially clamped with the half-lock clamping part and the full-lock clamping part from an open state and sequentially releases clamping with the full-lock clamping part and the half-lock clamping part as the pawl rotates in the other direction from a full-lock state. The pawl is provided with a first pressed part and a second pressed part, wherein the first pressed part can be clamped with the opening rod at a first rotation angle when the opening rod is clamped with the full-lock clamping part, and the second pressed part can be clamped with the auxiliary rod at a second rotation angle when the auxiliary rod is clamped with the half-lock clamping part.

Description

Technical Field

[0001] The present specification relates to a locking device for an opening and closing member for a vehicle. Background Art

[0002] In the past, as a locking device for such an opening and closing part for a vehicle, the following structure is disclosed: a latch that engages with a striker as it rotates, thereby locking the hood in a fully closed state; and a second rod including a hook that engages with the striker as it rotates, thereby locking the hood in a slightly open state, and a latch pressing portion that restricts the latch that engages with the striker from rotating in the direction of the striker opening (for example, refer to Patent Document 1). In this locking device, when the hood is closed, the striker engages with the striker engagement groove of the latch, and the latch pressing portion of the second rod engages with the latching recess of the latch to restrict the latch from returning to the open position (fully locked state). If the second rod is slightly rotated in a direction away from the latch by an operation from inside the vehicle to overcome the force, the latch pressing portion is disengaged from the latching recess, and the latch rotates in the opening direction. As the latch rotates, the striker is pushed by the latch and engages with the hook of the second rod, and the hood is kept in a slightly open state (half-locked state). And, if the second lever is rotated greatly against the action force by the operation from the inside of the vehicle, the striker is disengaged from the hook portion, and the hood can be opened (opened state). The second lever and the ratchet pawl can be used together to reduce the number of components.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2010-65427

[0006] Technical problem to be solved by the invention

[0007] In the locking device of the vehicle opening and closing member, the second lever is slightly rotated by the operation from inside the vehicle in the fully locked state to set the vehicle to a half-locked state, and the second lever is greatly rotated by the operation from inside the vehicle in the half-locked state to set the vehicle to an open state. Therefore, depending on the amount of operation from inside the vehicle, the fully locked state may be directly transferred to the open state by a single operation, thereby causing the opening and closing member to be accidentally opened. Summary of the invention

[0008] The main purpose of the vehicle opening and closing member locking device of the present invention is to prevent the vehicle opening and closing member from being changed to the opening state by a single operation in the vehicle opening and closing member locking device capable of switching between an open state, a semi-locked state and a fully locked state.

[0009] Technical means for solving technical problems

[0010] The locking device for an opening and closing member for a vehicle of the present invention adopts the following technical means in order to achieve the above-mentioned main object.

[0011] The locking device of the vehicle opening and closing component of the present invention comprises:

[0012] a base member fixed to one of the opening and closing member and the vehicle body of the vehicle;

[0013] a latch that is rotatable relative to the base member and that is engageable with a striker that is fixed to the other of the opening and closing member and the vehicle body; and

[0014] a pawl which is rotatable relative to the base member and engages with the latch to restrict the rotation of the latch,

[0015] The locking device for the vehicle opening and closing member causes the striker to engage with the latch to lock the opening and closing member in the fully closed position.

[0016] The locking device of the vehicle opening and closing member comprises:

[0017] an opening lever rotatable relative to the base member; and

[0018] a secondary lever, the secondary lever being rotatable relative to the opening lever,

[0019] In the latch, a half-lock engaging portion that engages with the pawl in a half-locked state and a full-lock engaging portion that engages with the pawl in a full-locked state are formed to be arranged in a circumferential direction,

[0020] The pawl is engaged with the half-locked engaging portion and the fully-locked engaging portion in sequence from the open state of the latch and rotates around the axis of the rotation shaft in one direction, and is disengaged from the fully-locked engaging portion and the half-locked engaging portion in sequence as it rotates around the axis of the rotation shaft in another direction opposite to the one direction from the fully-locked state.

[0021] The pawl is formed with a first pressed portion and a second pressed portion, the first pressed portion being capable of engaging the opening lever at a first rotation angle, the first rotation angle being the rotation angle of the pawl when engaged with the full-lock engagement portion, and the second pressed portion being capable of engaging the secondary lever at a second rotation angle, the second rotation angle being the rotation angle of the pawl when the engagement with the full-lock engagement portion is released and engaged with the half-lock engagement portion,

[0022] When the pawl is located at the first rotation angle and engaged with the fully locked engaging portion, the opening rod is rotated so that the opening rod engages with the first pressed portion and the pawl is rotated from the first rotation angle to the second rotation angle and in the other direction, thereby releasing the engagement between the pawl and the fully locked engaging portion. After the opening rod is rotated back, when the pawl is located at the second rotation angle and engaged with the half-locked engaging portion, the opening rod is rotated so that the sub-rod engages with the second pressed portion and the pawl is rotated from the second rotation angle to the other direction, thereby releasing the engagement between the pawl and the half-locked engaging portion.

[0023] In the locking device of the vehicle opening and closing part of the present invention, the ratchet is configured to rotate in one direction around the axis of the rotation axis as it sequentially engages with the half-locked engaging portion and the fully-locked engaging portion from the open state, and sequentially releases the engagement with the fully-locked engaging portion and the half-locked engaging portion as it rotates in the other direction around the axis of the rotation axis from the fully-locked state. Furthermore, when the ratchet is located at a first rotation angle (engaged with the fully-locked engaging portion), the opening rod is rotated to engage with the first pressed portion of the ratchet, thereby rotating the ratchet in the other direction by the opening rod. In addition, after the rotation of the opening rod is returned, when the ratchet is located at a second rotation angle (engaged with the half-locked engaging portion), the opening rod is rotated so that the secondary rod that can rotate relative to the opening rod engages with the second pressed portion of the ratchet, thereby rotating the ratchet and the secondary rod together in the other direction by the opening rod. Thus, the rotation range of the pawl can be set for the rotation of the opening lever by the presence or absence of engagement of the sub-lever with the second pressed portion of the pawl, and the fully locked state cannot be changed to the open state by a single operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of a vehicle provided with a hood locking device as a locking device of a vehicle opening and closing member according to the present invention.

[0025] Figure 2 This is a perspective view of the front appearance of the hood locking device.

[0026] Figure 3 This is a perspective view of the front appearance of the hood locking device with the hood member removed.

[0027] Figure 4 This is a perspective view of the rear side of the hood locking device.

[0028] Figure 5 It is an exploded perspective view of the hood locking device.

[0029] Figure 6 This is a schematic diagram of the latch structure.

[0030] Figure 7This is a schematic diagram of the structure of the pawl.

[0031] Figure 8 The diagrams are explanatory diagrams showing the open state, half-locked state, and fully-locked state of the latch.

[0032] Fig. 9 This is a schematic diagram of the ratchet, opening lever and auxiliary lever.

[0033] Fig.10 This is a schematic structural diagram of the auxiliary rod.

[0034] Fig.11 This is a schematic diagram of the closing lever and hook component.

[0035] Fig.12 This is an explanatory diagram showing how the latch is moved to the fully locked position by the closing lever.

[0036] Fig.13 This is an explanatory diagram showing how the latch is moved to the fully locked position by the closing lever.

[0037] Fig.14 It is an explanatory diagram showing the hood lock device when the full lock release operation is started.

[0038] Fig.15 It is an explanatory diagram of the hood lock device showing a state where the opening lever comes into contact with the pawl after the full-lock release operation is started.

[0039] Fig.16 This is an illustration of the hood locking device when the full lock is released.

[0040] Fig.17 It is an explanatory diagram showing the hood locking device in a half-locked state.

[0041] Fig.18 This is an explanatory diagram of the hood locking device showing the state in which the pawl is engaged with the semi-engaging surface and the opening lever returns to the initial position.

[0042] Fig.19 It is an explanatory diagram showing the hood locking device at the time of starting the half-lock release operation.

[0043] Fig. 20 It is an explanatory diagram of the hood locking device showing a state where the sub-lever comes into contact with the pawl after the release action of the half lock is started.

[0044] Fig.21 It is an explanatory diagram showing the hood locking device when the half lock is released.

[0045] Fig. 22 It is an explanatory diagram showing the hood locking device when the half-lock release operation is completed.

[0046] Fig.23It is an explanatory diagram of the hood locking device showing when the latch and the sub-rod come into contact with each other when fully locked from the open state.

[0047] Fig.24 It is an explanatory diagram showing the hood locking device just before full locking.

[0048] Fig.25 It is an explanatory diagram showing the hood locking device in a fully locked state.

[0049] Explanation of symbols

[0050] 1 vehicle, 2 vehicle body, 4 hood (opening and closing member), 6 striker, 10 hood locking device, 11 base member, 20 latch, 22b half-engaging surface (half-locked engaging portion), 22c full-engaging surface (full-locked engaging portion), 30 pawl, 32 fully released pressed portion (first pressed portion), 33 half-release pressed portion (second pressed portion), 40 opening lever, 50 sub-lever, AX1, AX2 rotation axes. DETAILED DESCRIPTION

[0051] Modes for carrying out the present invention will be described with reference to the drawings.

[0052] Figure 1 1 is a perspective view of a vehicle 1 equipped with a hood locking device 10 as a locking device for a vehicle opening and closing member according to the present invention. Figure 2 and Figure 3 is a perspective view of the front side of the hood locking device 10. Figure 4 is a perspective view of the rear side of the hood locking device 10. Figure 5 1 is an exploded perspective view of the hood locking device 10. Figure 6 is a schematic structural diagram of the latch 20, Figure 7 is a schematic structural diagram of the ratchet 30, Figure 8 2 is an explanatory diagram showing the open state, half-locked state, and fully locked state of the latch 20. Fig. 9 30, the opening lever 40 and the auxiliary lever 50. Fig.10 2 is a schematic structural diagram of the auxiliary rod 50. Fig.11 It is a schematic structural diagram of the closing lever 60 and the hook member 65.

[0053] like Figure 1As shown, the vehicle 1 includes a front luggage compartment T as a storage space provided at the front portion of a vehicle body 2, a hood 4 supported to be freely rotatable up and down relative to the vehicle body 2 via a hinge 3 so as to cover the front luggage compartment T, a telescopic support member 5 located between the vehicle body 2 and the hood 4, a hood opening and closing device (not shown) for opening and closing the hood 4 by electrically extending and retracting the support member 5, and a hood locking device 10 of the present embodiment for locking the hood 4 at a fully closed position. The hood locking device 10 is provided at the opening portion of the front luggage compartment T so as to be engageable with a striker 6 fixed to the inner surface of the front end portion of the hood 4.

[0054] like Figure 2 to Figure 5 As shown, the hood locking device 10 includes: a base member 11 fixed to the vehicle body 2 and formed with a striker groove 11a for receiving the striker 6, a cover member 12 fixed to the base member 11 in a manner to cover the interior of the hood locking device 10 together with the base member 11, a latch 20 that can rotate relative to the base member 11 and can mesh with the striker 6 fixed to the hood 4, a pawl 30 that can rotate relative to the base member 11 and engages with the latch 20 to limit the rotation of the latch 20, a closing rod 60 that can engage with the latch 20 and rotate integrally, a hook member 65 connected to the closing rod 60 so as to be rotatable relative to the closing rod 60, a closer driving device 70, an opening rod 40 that can engage with the pawl 30 and rotate integrally, and a sub-rod 50 connected to the opening rod 40 so as to be rotatable relative to the opening rod 40.

[0055] The latch 20 is rotatable around the axis of the rotation axis AX1 fixed to the base member 11. Figure 6 As shown, the latch 20 has a locking portion 24 at a position radially away from the rotation axis AX1, and the other end of the latch spring 26 (torsion spring) locked to the base member 11 is locked to the locking portion 24. As a result, the latch 20 is moved radially around the axis of the rotation axis AX1. Figure 6 Apply force in the counterclockwise direction (opening side to open the striker 6).

[0056] In addition, if Figure 6 As shown, the latch 20 has a first claw portion 21 and a second claw portion 22 defining a notch portion 23 for engaging with the striker 6. The second claw portion 22 is formed with an open engaging surface 22a that engages with the pawl 30 in the open state (the state in which the striker 6 is opened), a half engaging surface 22b that engages with the pawl 30 in the half-locked state (the state in which the hood 4 is slightly opened), and a full engaging surface 22c that engages with the pawl 30 in the full-locked state (the state in which the hood 4 is fully closed). The open engaging surface 22a, the half engaging surface 22b, and the full engaging surface 22c are formed in sequence. Figure 6The second claw portion 22 is formed in a clockwise arrangement on the outer periphery of the second claw portion 22. The open engaging surface 22a is an arc-shaped surface centered on the rotation axis AX1. The half engaging surface 22b and the full engaging surface 22c are planar surfaces extending in the radial direction of the latch 20. In addition, the rotation angle of the latch 20 when the pawl 30 is engaged with the half engaging surface 22b is called a half-locked position, and the rotation angle of the latch 20 when the pawl 30 is engaged with the full engaging surface 22c is called a full-locked position. The distance ra from the center O of the rotation axis AX1 of the latch 20 to the open engaging surface 22a is longer than the distance rb from the center O of the rotation axis AX1 to the end of the half engaging surface 22b on the rotation axis AX1 side, and the distance rb is longer than the distance rc from the center O of the rotation axis AX1 to the end of the full engaging surface 22c on the rotation axis AX1 side.

[0057] In addition, if Figure 6 As shown, an engaging block 25 is formed on the side surface of the second claw 22 (the surface on the axial side of the rotation axis AX1), the engaging block 25 protrudes in the axial direction of the rotation axis AX1, and extends in an arc shape with the rotation axis AX1 as the center from the vicinity of the full engaging surface 22c to the middle of the open engaging surface 22a. The engaging block 25 is formed with: a hook engaging surface 25a that can be engaged with the hook member 65 that is rotatably connected to the closing lever 60; a hook abutting surface 25b that is continuously provided along the circumferential direction with the hook engaging surface 25a and can be abutted by the hook member 65, a sub-rod abutting surface 25c that can be abutted by the sub-rod 50, and a pop-up engaging surface 25d that can be engaged by the closing lever 60. The hook engaging surface 25a is formed by a planar surface that extends radially from the rotation axis AX1 so that the hook member 65 can be engaged when the latch 20 is located on the open side (pulled-in start position) compared to the half-locked position. The latch 20 can be integrally moved around the axial direction of the rotation axis AX1 with the closing lever 60 by the power from the closer driving device 70 in a state where the hook member 65 is engaged with the hook engagement surface 25a. Figure 7 The hook contact surface 25b is formed by a surface extending in an arc shape from the radial end of the hook engagement surface 25a with the rotation axis AX1 as the center. The secondary lever contact surface 25c is formed by a planar surface extending in the radial direction of the rotation axis AX1 on the side of the opening engagement surface 22a of the second claw portion 22. The ejection engagement surface 25d is formed by a planar surface extending in the radial direction of the rotation axis AX1 on the side of the opening engagement surface 22a of the second claw portion 22.

[0058] The ratchet pawl 30 is a plate-shaped member that can rotate around the axis of the rotation axis AX2 fixed to the base member 11 in parallel with the rotation axis AX1. Figure 4 , Figure 7As shown, the pawl 30 has a locking portion 35, which is inserted into a guide hole 11c formed in a long hole in the base member 11 in an arc shape with the rotation axis AX2 as the center, and a pawl spring 36 (helical spring) whose one end is locked to the base member 11 and the other end is locked to the locking portion 35. As a result, the pawl 30 is moved in a direction around the axis of the rotation axis AX2. Figure 7 Apply force in the clockwise direction (one direction).

[0059] In addition, if Figure 8 (a) Figure 8 (b) and Figure 8 As shown in (c), the pawl 30 has an engagement portion 31, and the engagement portion 31 extends in the radial direction of the rotation axis AX2 in a manner capable of engaging with the open engagement surface 22a, the half engagement surface 22b, and the full engagement surface 22c of the latch 20. The pawl 30 is moved in the axial direction around the rotation axis AX2 as the engagement portion 31 sequentially engages with the open engagement surface 22a, the half engagement surface 22b, and the full engagement surface 22c. Figure 8 In addition, the pawl 30 rotates in the clockwise direction (one direction) around the axis of rotation AX2. Figure 8 The engaging portion 31 is disengaged from the full engaging surface 22c and the half engaging surface 22b by rotating the pawl 30 in the counterclockwise direction (the other direction) in the middle. In addition, the rotation angle of the pawl 30 when the full engaging surface 22c is engaged with the latch 20 is referred to as the full engaging rotation angle (first rotation angle), and the rotation angle of the pawl 30 when the half engaging surface 22b is engaged with the latch 20 is referred to as the half engaging rotation angle (second rotation angle). In addition, the rotation angle of the pawl 30 when the open engaging surface 22a is engaged with the latch 20 is referred to as the open engaging rotation angle.

[0060] Furthermore, the ratchet 30 includes a pressed portion 32 for full release (first pressed portion) that can be engaged with the opening lever 40 in the circumferential direction of the rotation axis AX2, a pressed portion 33 for half release (second pressed portion) that can be engaged with the sub-lever 50 in the circumferential direction of the rotation axis AX2, a first sub-lever support portion 34a that can support the sub-lever 50 at a position in the radial direction of the rotation axis AX2 where the sub-lever 50 can engage with the pressed portion 33 for half release, and a second sub-lever support portion 34b that can support the sub-lever 50 at a position in the radial direction of the rotation axis AX2 where the sub-lever 50 cannot engage with the pressed portion 33 for half release. The pressed portion 32 for full release is a protrusion that protrudes radially from the rotation axis AX2 in a manner that is pressed in the circumferential direction of the rotation axis AX2 by the opening lever 40 at a position different from the engaging portion 31. The half-release pressed portion 33 is a surface extending radially from the rotation axis AX2 in a manner that the sub-lever 50 is pressed in the circumferential direction of the rotation axis AX2 at a position different from the engaging portion 31 and the fully-release pressed portion 32. The first sub-lever support portion 34a extends from the end of the half-release pressed portion 33 on the rotation axis AX2 side in the radial direction to the circumferential direction of the rotation axis AX2 ( Figure 7 The second auxiliary rod support portion 34b extends from the outer peripheral end of the half-release pressed portion 33 in the radial direction to the circumferential direction of the rotation axis AX2 ( Figure 7 ) in the clockwise direction.

[0061] like Fig. 9 As shown, the opening lever 40 is a plate-shaped component that overlaps with the pawl 30 in the axial direction of the rotation axis AX2, and can rotate coaxially with the pawl 30 around the axis of the rotation axis AX2. The opening lever 40 has: an engaging portion 42 that can engage with the pressed portion 32 for full release (first pressed portion) of the pawl 30; and a first operated portion 43 and a second operated portion 44 for moving (rotating) the opening lever 40. The engaging portion 42 can engage with the pressed portion 32 for full release at a rotation angle (first rotation angle) when the pawl 30 is at the fully engaged rotation angle. Fig. 9 The engaging portion 42 is engaged with the clockwise direction (one direction) side of the pawl 30, and extends radially from the rotation axis AX2 in a manner that cannot engage with the pressed portion 32 for full release when the pawl 30 is located at the semi-engaged rotation angle (second rotation angle). In the present embodiment, the engaging portion 42 is configured as a curved portion that bends toward the pawl 30 side at the extended end extending radially from the rotation axis AX2. Thus, the engaging portion 42 can be formed by simpler processing. The first operated portion 43 is formed on the outer periphery of the opening lever 40 so as to engage with the fan gear 74 that rotates by the action of the closer drive device 70. The opening lever 40 is moved to the outside of the opening lever 40 as the fan gear 74 rotates when the fan gear 74 is engaged with the first operated portion 43. Fig. 9The second operated portion 44 is formed at a position different from the first operated portion 43 on the outer periphery of the opening lever 40. The cable 80 (see Figure 3 ) is locked to the second operated portion 44, and the other end of the cable 80 is locked to a lock release lever (not shown) disposed in the vehicle interior. The opening lever 40 is pulled toward the opening position by the operator operating the lock release lever through the cable 80. Fig. 9 And, when the pawl 30 is in the fully locked state at the fully engaged rotation angle, the opening lever 40 is turned to the Fig. 9 The pawl 30 is rotated in the counterclockwise direction (the other direction) in the opening rod 40, and the engaging portion 42 of the opening rod 40 engages with the pressed portion 32 for full release of the ratchet 30. Then, the ratchet 30 is pressed by the opening rod 40, and moves together with the opening rod 40. Fig. 9 By rotating the locking lever 40 in the counterclockwise direction (the other direction), the engaging portion 31 is disengaged from the fully engaging surface 22c of the latch 20. Thus, the fully locked state can be released by the action of the closer drive device 70 and the operation of the lock release lever. Here, by one action of the closer drive device 70 and one operation of the lock release lever, the stroke amount (rotation amount) of the rotating opening lever 40 is adjusted to the amount required to release the fully locked state, that is, the ratchet 30 is rotated from the state of being engaged with the fully engaging surface 22c (rotation angle when fully engaged) to the state of being disengaged from the fully engaging surface 22c (rotation angle when half engaged). Fig. 9 The amount obtained by adding some margin to the amount required for the counterclockwise rotation (the other direction) in the half-lock state. In addition, in the present embodiment, the release of the half-lock state can also be performed by moving the opening lever 40 from the initial position by approximately the same amount of stroke (rotation) after the full-lock state is released, but the details will be described later. In addition, the opening lever 40 is positioned at the initial position relative to the latch 20 by the force from the secondary lever spring 54 described later. Strictly speaking, the initial position is different depending on the rotation position of the latch 20.

[0062] In addition, if Fig. 9 As shown, the opening lever 40 is further formed with a protrusion 45 protruding radially from the rotation axis AX2 at a position different from the engagement portion 42. Figure 3 As shown, the protrusion 45 protrudes through the cutout portion 11d formed in the base member 11. The protrusion 45 contacts the edge of the cutout portion 11d on the circumferential side to limit the opening lever 40 from moving in the axial direction around the rotation axis AX2 at the limiting position beyond the initial position. Figure 3 Rotate in clockwise direction.

[0063] Furthermore, an arc-shaped guide hole 41 is formed in the opening lever 40. The guide hole 41 is formed in an arc shape centered on the rotation axis AX1 (the rotation axis of the closing lever 60) when the opening lever 40 is located at the initial position.

[0064] The auxiliary lever 50 is a plate-shaped component located between the pawl 30 and the opening lever 40. Fig. 9 As shown in FIG. 1 , the base end portion is rotatably connected to the opening lever 40 via a rotation axis AX3 parallel to the rotation axis AX2. The top end portion of the auxiliary lever 50 is the free end portion 51. Fig.10 As shown, the secondary rod 50 has: an engaging portion 53 formed on the side between the base end portion and the free end portion 51; and a stopper portion 52 formed on the side of the base end side relative to the engaging portion 53. Figure 2 As shown, one end of the auxiliary lever spring 54 is locked to the cover member 12, and the other end is locked to the locking portion 52. In this embodiment, the auxiliary lever spring 54 is a coil spring that rotates the opening lever 40 around the axis of the rotation axis AX2 via the auxiliary lever 50. Fig. 9 A force is applied in the clockwise direction (one direction) of the ratchet 30. In the present embodiment, the engaging portion 53 is configured as a bent portion that bends toward the ratchet 30 side. Thus, the engaging portion 53 can be formed by a simpler process. The engaging portion 53 is located near the second sub-rod support portion 34b of the ratchet 30 when the ratchet 30 is located at the fully engaged rotation angle (first rotation angle), and becomes a state in which it cannot engage with the half-release pressed portion 33 (second pressed portion). In addition, the engaging portion 53 is located near the first sub-rod support portion 34a of the ratchet 30 when the ratchet 30 is located at the half-engaged rotation angle (second rotation angle), and becomes a state in which it can engage with the half-release pressed portion 33. In the state in which the engaging portion 53 of the sub-rod 50 is located near the first sub-rod support portion 34a, that is, in the semi-locked state in which the ratchet 30 is located at the half-engaged rotation angle, by opening the rod 40 to Fig. 9 The sub-lever 50 rotates in the counterclockwise direction (the other direction) in the middle of the opening lever 40, and the engaging portion 53 of the sub-lever 50 engages with the half-release pressed portion 33 of the pawl 30. Then, the pawl 30 is rotated further from the half-engagement angle to the half-release pressed portion 33 integrally with the opening lever 40 by the sub-lever 50 pressing the half-release pressed portion 33 as the opening lever 40 rotates. Fig. 9The lock is rotated counterclockwise (in the other direction) to the open engagement rotation angle. Thus, similar to the release of the fully locked state, the opening lever 40 can be actuated (rotated) by the action of the closer drive device 70 and the operation of the lock release lever, thereby releasing the semi-locked state. Here, the amount of rotation of the pawl 30 from the fully engaged rotation angle to the semi-engaged rotation angle and the amount of rotation of the pawl 30 from the semi-engaged rotation angle to the open engagement rotation angle are substantially the same, and the release of the fully locked state and the release of the semi-locked state can be performed by moving the opening lever 40 from the initial position by the same amount of stroke (rotation). Thus, the fully locked state and the semi-locked state can be released separately by a simple mechanism.

[0065] The closing lever 60 can rotate coaxially with the latch 20 about the axis of the rotation axis AX1, and Fig.11 As shown in FIG. 1 , the locking portion 61 is provided with a locking portion 61 that can be locked with the latch 20, a locking portion 62 that is locked with a pop-up spring 64 that applies force to the closing lever 60, and an operated portion 63 for moving (rotating) the closing lever 60. The locking portion 61 extends in the radial direction of the rotation axis AX1 so as to be able to be engaged with the pop-up locking surface 25d of the locking block portion 25 formed on the latch 20. Figure 4 As shown in FIG. 1 , one end of the ejection spring 64 is locked to the base member 11, and the other end is locked to the locking portion 62. In the present embodiment, the ejection spring 64 is a coil spring, which is rotated in the axial direction around the rotation axis AX1. Fig.11 The closing rod 60 is forced in the counterclockwise direction (opening side) in the middle. The latch 20 engages with the engaging portion 61 of the closing rod 60 at the pop-up engaging surface 25d, and is urged toward the opening side around the axis of the rotation axis AX1 as a whole with the closing rod 60 by the action force of the pop-up spring 64. As a result, when the semi-locked state is released, the striker 6 is pushed out by the latch 20 (second claw portion 22), so that the hood 4 can be ejected to a slightly open state. The locking portion 62 is inserted into a guide hole 11b formed in the base member 11 in an arc shape with the rotation axis AX1 as the center. The guide hole 11b defines the range of the action force of the pop-up spring 64 on the closing rod 60 (latch 20). In the present embodiment, the guide hole 11b is formed so as to apply force to the latch 20 toward the opening side from the stroke end on the closing side compared to the fully locked position to the position on the opening side compared to the semi-locked position.

[0066] The operated portion 63 is formed in a cylindrical shape so as to protrude in a direction parallel to the rotation axis AX2 from a position away from the rotation axis AX2 of the closing lever 60 so as to be engaged with the sector gear 74. The closing lever 60 is pressed by the operated portion 63 as the sector gear 74 rotates, thereby rotating the closing lever 60 in the axial direction around the axis AX1. Fig.11 Turn it clockwise (closing side).

[0067] like Figure 3As shown, the closer driving device 70 comprises: a closer motor 71, an output gear 73 meshing with a fan-shaped gear 74, and a reduction gear mechanism 72 for reducing the speed of power from the closer motor 71 and transmitting it to the output gear 73. The fan-shaped gear 74 is rotatable around the axis of a rotation axis AX5 parallel to the rotation axes AX1 and AX2, and comprises: a fan-shaped gear portion 74a meshing with the output gear 73, a closing engaging portion 74b extending radially from the rotation axis AX5 at a position different from the gear portion 74a, and an opening engaging portion 74c extending radially from the rotation axis AX5 at a position different from the gear portion 74a and the closing engaging portion 74b. The fan-shaped gear 74 is driven by the power transmitted from the closer driving device 70 to the output gear 73. Figure 3 The closing engaging portion 74b is engaged with the operated portion 63 of the closing lever 60, so that the closing lever 60 is rotated in the counterclockwise direction around the rotation axis AX1. Figure 3 In addition, the fan gear 74 is rotated in the clockwise direction (closing side) by the power of the reverse rotation direction transmitted from the closer driving device 70. Figure 3 The opening engaging portion 74c is engaged with the first operated portion 43 of the opening lever 40, so that the opening lever 40 is rotated in the clockwise direction around the rotation axis AX2. Figure 3 Rotate counterclockwise (the other direction).

[0068] like Fig.11 As shown, the base end of the hook member 65 is rotatably connected to the closing lever 60 via the rotation axis AX4 parallel to the rotation axis AX1. The top end of the hook member 65 is formed with an engaging claw 66 extending toward the second claw portion 22 (engaging block portion 25) of the latch 20 and a cylindrical insertion portion 67 protruding in a direction parallel to the axial direction of the rotation axis AX4. The insertion portion 67 is inserted into the guide hole 41 of the opening lever 40. As described above, the opening lever 40 is pulled inward about the axis of the rotation axis AX2 via the auxiliary lever 50 by the auxiliary lever spring 54. Fig.12 The hook member 65 is urged toward the engaging block portion 25 (hook engaging surface 25a, hook contact surface 25b) of the latch 20 by the force acting on the opening lever 40. The engaging claw 66 of the hook member 65 is pressed against the hook engaging surface 25a and hook contact surface 25b of the engaging block portion 25, so that the opening lever 40 is positioned at the initial position relative to the latch 20.

[0069] In the open state where the latch 20 opens the striker 6, the engaging claw 66 of the hook member 65 is pressed against the hook contact surface 25b formed on the engaging block 25 of the latch 20 by the above-mentioned force acting on the opening lever 40. Then, by rotating the latch 20 from the open state to the closed side, the engaging claw 66 of the hook member 65 slides and contacts the hook contact surface 25b, as shown in FIG. Fig.12As shown in FIG. 1 , when the latch 20 is at a rotation angle closer to the open side than the half-locked position (pulled-in start position), the engaging claw 66 engages with the hook engaging surface 25a. When the closing engaging portion 74b of the sector gear 74 engages with the operated portion 63 by the action of the closer driving device 70, and the operated portion 63 is pressed, the closing lever 60 moves in the direction of the axis of rotation AX1 around the axis of rotation AX1. Fig.12 The latch 20 and the closing lever 60 rotate in the clockwise direction (closing side) and the hook member 65 (engaging claw 66) connected to the closing lever 60 moves along the guide hole 41 of the opening lever 40 in a circular arc-shaped trajectory centered on the rotation axis AX1. Fig.12 The latch 20 rotates clockwise (on the closing side) to pull in the striker 6 through the first claw 21. The pawl 30 engages with the half engagement surface 22b and the full engagement surface 22c in sequence through the engagement portion 31 as the latch 20 rotates. Fig.13 As shown, the pawl 30 is engaged with the full engagement surface 22 c via the engagement portion 31 , thereby locking the latch 20 so as to be non-rotatable when the latch 20 is engaged with the striker 6 via the notch portion 23 (full lock position).

[0070] When the closer driving device 70 stops rotating the latch 20 toward the closing side due to some abnormality, the latch 20 and the closing rod 60 (hook component 65) are locked together. Therefore, the opening rod 40 is operated by the lock release rod to disengage the hook component 65 from the hook engagement surface 25a of the latch 20 and release the lock of the latch 20. In this case, the latch 20 is rotated toward the opening side by the force of the latch spring 26 and becomes an open state, so that the hook component 65 separates from the hook engagement surface 25a and the hook contact surface 25b of the latch 20. As a result, the opening rod 40 cannot be fixed to the initial position. When the opening rod 40 is rotated beyond the initial position due to the force of the secondary rod spring 54, the hook component 65 connected to the opening rod 40 via the insertion portion 67 enters the rotation axis AX1 side of the latch 20 (refer to Figure 3 ). If this state is reached, even if the latch 20 is rotated from the open state to the closed side, the latch 20 interferes with the hook member 65 and cannot be rotated to the closed side. In the present embodiment, the protrusion 45 abuts against the cutout portion 11d of the base member 11 at the above-mentioned limiting position, so that the rotation of the opening lever 40 beyond the limiting position is limited, so that such a failure does not occur.

[0071] In the vehicle 1 of the present embodiment, the hood 4 can be opened and closed manually by the operator, and can also be opened and closed electrically by the hood opening and closing device. When the hood 4 is fully closed electrically, when the operator instructs the hood 4 to be fully closed by operating a remote controller or the like, the control device of the vehicle 1 controls the hood opening and closing device so that the hood 4 rotates in the closing direction. As the hood 4 rotates in the closing direction, the striker 6 formed on the hood 4 enters the striker groove 11a of the base member 11 and abuts against and presses the second claw portion 22 of the latch 20 in the open state, so that the latch 20 rotates to the closing side. The control device of the vehicle 1 controls the hood opening and closing device so that the hood 4 rotates in the closing direction until the latch 20 reaches the retraction start position. When the latch 20 reaches the retraction start position, the hook member 65 connected to the closing rod 60 engages with the latch 20. Then, the control device of the vehicle 1 controls the closer motor 71 so that the closing rod 60 rotates to the closing side. The latch 20 and the closing lever 60 are integrally rotated toward the closing side, so that the striker 6 is pulled in and engaged with the pawl 30 at the fully locked position and locked. Thus, the hood 4 is locked at the fully closed position.

[0072] Next, the operation of releasing the fully locked state or releasing the half-locked state according to the operation of the lock release lever by the operator will be described. In the hood locking device 10 of the present embodiment, when the lock release lever is operated once in the fully locked state, it becomes a half-locked state, and when the lock release lever is operated again in the half-locked state, it becomes an open state. That is, in the hood locking device 10 of the present embodiment, in order to set the fully locked state to the open state, the lock release lever needs to be operated twice. By not directly transferring from the fully locked state to the open state, it is possible to prevent the hood 4 from being unexpectedly opened.

[0073] First, refer to Figures 14 to 18 , the operation of the hood locking device 10 when the fully locked state is released will be described. Fig.14 As shown, in the fully locked state, the engaging portion 53 of the sub-lever 50 is located near the second sub-lever support portion 34 b of the pawl 30 and is not engageable with the half-release pressed portion 33 (second pressed portion).

[0074] When the operator operates the lock release lever once in the fully locked state, the cable 80 pulls the open lever 40 to move in a direction around the axis of the rotation axis AX2. Fig.14 When the opening lever 40 is rotated, as shown in FIG. Fig.15 As shown in FIG. 1 , the engaging portion 42 of the opening lever 40 contacts (engages) the fully released pressed portion 32 (first pressed portion) of the pawl 30. Then, as the opening lever 40 rotates, the pawl 30 rotates integrally with the opening lever 40 from the fully engaged rotation angle (first rotation angle) around the axis of rotation axis AX2 to Fig.15When the opening lever 40 rotates to the front of its full stroke, the pawl 30 reaches the half-engaged rotation angle (the second rotation angle), as shown in FIG. Fig.16 As shown in FIG. 1 , the engaging portion 31 of the pawl 30 is disengaged from the full engaging surface 22c of the latch 20. As a result, the full locking state is released. Fig.16 The latch 20 is applied in the counterclockwise direction (opening side) in the locking state, so when the fully locked state is released, the latch 20 rotates toward the opening side. When the latch 20 rotates toward the opening side, as shown in FIG. Fig.17 As shown, the engaging portion 31 of the pawl 30 engages with the half engaging surface 22b of the latch 20, and the pawl 30 locks the latch 20 in the half-locked position. Thus, the fully locked state is shifted to the half-locked state.

[0075] When the operator releases the operation of the lock release lever and the pulling of the cable 80 is released, the opening lever 40 is moved in the direction of the axis of rotation AX2 by the force of the secondary lever spring 54. Fig.18 The pawl 30 rotates in the clockwise direction (one direction) in the half-engaged state, thereby returning to the initial position. The pawl 30 is located at a rotation angle (second rotation angle) when half-engaged, compared with the rotation angle (first rotation angle) when fully engaged, about the axis of the rotation axis AX2. Fig.18 Therefore, when the opening lever 40 returns to the initial position in the semi-locked state, the opening lever 40 is located in the axial direction relative to the pawl 30 around the rotation axis AX2. Fig.18 34b and is located near the first auxiliary rod support portion 34a, and is in a state where it can contact (engage) with the half-release pressed portion 33 (second pressed portion). Thus, by using a simple structure based on the pawl 30, the open rod 40 and the auxiliary rod 50, the auxiliary rod 50 can be switched between a state in which it cannot engage with the half-release pressed portion 33 and a state in which it can engage with the half-release pressed portion 33.

[0076] Next, refer to Figure 19 to Figure 22 The operation when releasing the half-lock state is described.

[0077] When the operator operates the lock release lever again in the half-locked state, the cable 80 is pulled, so that the opening lever 40 moves in the direction of the axis of rotation AX2. Fig.19 The pawl 30 rotates in the counterclockwise direction (the other direction) in the half-engaged state. The rotation angle of the pawl 30 when half-engaged is greater than the rotation angle when fully engaged. Fig.19Therefore, even if the opening lever 40 is rotated in the counterclockwise direction (the other direction), the engaging portion 42 of the opening lever 40 does not contact the pressed portion 32 (the first pressed portion) for full release of the ratchet 30. However, when the opening lever 40 is rotated in the counterclockwise direction (the other direction), as shown in FIG. Fig. 20 As shown in FIG. 1 , the engaging portion 53 of the secondary lever 50 connected to the opening lever 40 contacts (engages) the half-release pressed portion 33 (second pressed portion) of the pawl 30. Then, as the opening lever 40 rotates, the half-release pressed portion 33 is pressed by the engaging portion 53 of the secondary lever 50, so that the pawl 30 and the opening lever 40 are integrally rotated from the half-engaged rotation angle around the axis of rotation AX2 to the Fig. 20 When the opening lever 40 rotates to the front of its full stroke, the ratchet 30 reaches the rotation angle when the opening engagement is performed, such as Fig.21 As shown in FIG. 1 , the engaging portion 31 of the pawl 30 is disengaged from the semi-engaging surface 22b of the latch 20. As a result, the semi-locked state is released. The latch 20 is moved to the center of the rotation axis AX1 by the latch spring 26 and the ejection spring 64. Fig.21 Therefore, when the half-locked state is released, the striker 6 is pushed out by the second claw 22 and rotated to the opening side mainly by the force of the ejection spring 64. Fig. 22 As shown, the engaging portion 31 of the pawl 30 engages with the opening engaging surface 22a of the latch 20, so that the latch 20 is not restricted by the pawl 30 and is in a rotatable open state. As a result, the striker 6 is released from the latch 20, and the operator can open the hood 4.

[0078] Here, after the hood 4 is opened, when it is fully closed again, Fig.23 As shown, the latch 20 is rotated from the open state around the axis of rotation AX1 to Fig.23 At this time, the engaging portion 53 of the auxiliary lever 50 is supported by the first auxiliary lever supporting portion 34a of the ratchet 30, and the free end portion 51 (top end portion) of the auxiliary lever 50 contacts the auxiliary lever abutting surface 25c formed on the engaging block portion 25 of the latch 20. Then, as Fig.24 As shown, the free end portion 51 of the secondary rod 50 is pressed down by the engaging block 25 (secondary rod abutment surface 25c) as the latch 20 rotates toward the fully locked position. Fig.25 As shown, the pawl 30 rotates around the axis of rotation AX2. Fig.25 The sub-lever 50 rotates in the clockwise direction (one direction) in the middle of the ratchet 30 and engages with the full engagement surface 22c of the latch 20 at the engagement portion 31. Then, as the ratchet 30 rotates, the sub-lever 50 moves relative to the axial center of the ratchet 30 around the rotation axis AX2. Fig.25The sub-lever 50 is relatively rotated in the counterclockwise direction (the other direction) in the ratchet 30, and the engaging portion 53 of the sub-lever 50 is located near the second sub-lever support portion 34b of the ratchet 30. As a result, the sub-lever 50 (engaging portion 53) returns to a state where it cannot be engaged with the half-release pressed portion 33 (the second pressed portion).

[0079] In the above-described embodiment, the hood lock device 10 is fixed to the vehicle body 2 and the striker 6 is fixed to the hood 4 . However, the hood lock device 10 may be fixed to the hood 4 and the striker 6 may be fixed to the vehicle body 2 .

[0080] In the above-mentioned embodiment, the vehicle 1 is provided with a hood opening and closing device that automatically opens and closes the hood 4 electrically, but the vehicle 1 may not be provided with a hood opening and closing device. In this case, the closer drive device 70 and the sector gear 74 may be omitted.

[0081] Although the mode for implementing the present invention has been described above using the embodiment, the present invention is not limited to such embodiment, and can of course be implemented in various forms within the scope not departing from the gist of the present invention.

[0082] Possibility of industrial application

[0083] The present invention can be used in the manufacturing industry of a hood locking device.

Claims

1. A locking device for an opening and closing component for a vehicle, comprising: a base member fixed to one of the opening and closing member and the vehicle body of the vehicle; a latch that is rotatable relative to the base member and that is engageable with a striker that is fixed to the other of the opening and closing member and the vehicle body; as well as a pawl which is rotatable relative to the base member and engages with the latch to restrict the rotation of the latch, The locking device for the vehicle opening and closing member causes the striker to engage with the latch to lock the opening and closing member in the fully closed position. in, The locking device of the vehicle opening and closing member comprises: an opening lever, the opening lever being rotatable relative to the base member; as well as a secondary lever, the secondary lever being rotatable relative to the opening lever, In the latch, a half-lock engaging portion that engages with the pawl in a half-locked state and a full-lock engaging portion that engages with the pawl in a full-locked state are formed to be arranged in a circumferential direction, The pawl is engaged with the half-locked engaging portion and the fully-locked engaging portion in sequence from the open state of the latch and rotates around the axis of the rotation shaft in one direction, and is disengaged from the fully-locked engaging portion and the half-locked engaging portion in sequence as it rotates around the axis of the rotation shaft in another direction opposite to the one direction from the fully-locked state. The pawl is formed with a first pressed portion and a second pressed portion, the first pressed portion being capable of engaging the opening lever at a first rotation angle, the first rotation angle being the rotation angle of the pawl when engaged with the full-lock engagement portion, and the second pressed portion being capable of engaging the secondary lever at a second rotation angle, the second rotation angle being the rotation angle of the pawl when the engagement with the full-lock engagement portion is released and engaged with the half-lock engagement portion, When the pawl is located at the first rotation angle and engaged with the fully locked engaging portion, the opening rod is rotated so that the opening rod engages with the first pressed portion and the pawl is rotated from the first rotation angle to the second rotation angle and in the other direction, thereby releasing the engagement between the pawl and the fully locked engaging portion. After the opening rod is rotated back, when the pawl is located at the second rotation angle and engaged with the half-locked engaging portion, the opening rod is rotated so that the sub-rod engages with the second pressed portion and the pawl is rotated from the second rotation angle to the other direction, thereby releasing the engagement between the pawl and the half-locked engaging portion.

2. The locking device for an opening and closing member for a vehicle according to claim 1, wherein: The opening lever is rotatable coaxially with the pawl relative to the base member. When the pawl is located at the first rotation angle, as the opening lever rotates in the other direction around the axis of the rotation shaft, the opening lever engages with the first pressed portion, and the pawl and the opening lever rotate in the other direction from the first rotation angle to the second rotation angle as a whole. The secondary rod is rotatably connected to the opening rod at a position different from the rotation axis of the opening rod. When the pawl is located at the second rotation angle, as the opening rod returns to the initial position on the one direction side around the axis of the rotation axis, the secondary rod rotates relative to the opening rod and can engage with the second pressed portion.

3. The locking device for a vehicle opening and closing member according to claim 1 or 2, wherein: When the pawl is located at the first rotation angle, the pawl is rotated from the first rotation angle to the second rotation angle and to the other direction by the opening rod being rotated a specified amount from the initial position. When the pawl is located at the second rotation angle, the pawl is rotated from the second rotation angle to the other direction by the opening rod being rotated the specified amount from the initial position.

4. The locking device for an opening and closing member for a vehicle according to claim 1 or 2, wherein: The ratchet pawl, the opening lever and the auxiliary lever are plate-like components that overlap with each other in the extending direction of the rotation axis. At least one of the engaging portion of the open lever engageable with the first pressed portion and the engaging portion of the sub-lever engageable with the second pressed portion is a bent portion bent toward the pawl at an outer edge.

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