JP5108476B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device, and more particularly to a vehicle door lock device that avoids the inability to perform a release operation.

  As a device for locking a vehicle door to a body, for example, there is an automobile door lock device disclosed in Patent Document 1. The door lock device of Patent Document 1 keeps the door closed by hooking the hooking means provided on the body with the hooking means provided on the door. A lift lever is provided in order to be able to release the latching means on the door side, and an open link is provided as a member for pressing the lift lever. Further, an open member is interposed to transmit the door handle operation to the open link. By switching the position of the open link with the active lever, an unlocked state where the lift lever can be pressed and a locked state where the lift lever cannot be pressed can be selected. The active lever is generally operated by an operation of a lock knob provided inside the door or an unlocking operation using a key from the outside of the door, and may be configured to operate even by an actuator such as a motor. .

In recent years, a function called a smart entry or a smart key that enables a lock operation and an unlock operation of a door lock device to be performed remotely is becoming widespread. This smart entry uses a key with a wireless transmission function, and when the driver who owns the key approaches the vehicle or when a button on the vehicle is pressed, an unlock command is transmitted wirelessly. It has become so. On the other hand, on the vehicle side having a wireless reception function, when an unlock command is received, the actuator is activated and the active lever switches the locked state to the unlocked state. When the driver reaches the vehicle, the door can be opened only by operating the steering wheel, so that the time and effort of the unlocking operation using the key can be saved.
Japanese Patent Laid-Open No. 2007-1000031

  By the way, for example, when the door lock device for automobiles of Patent Document 1 is provided with the smart entry function, there is a possibility that the release operation may become impossible in rare cases. This inoperability of the release operation can occur when the passenger or the driver operates the door handle during the unlocking operation in which the smart entry functions by the driver's key and the actuator switches the locked state to the unlocked state. . That is, since the open link is driven during the transition from the locked state to the unlocked state, the transition to the unlocked state may be blocked by the lift lever. Then, even if the passenger stops and the passenger removes his / her hand from the steering wheel, the actuator cannot be switched to the unlocked state, so that the release operation is disabled and a so-called panic state occurs.

  In order to return the state where the release operation is impossible, the lock lever or the unlock operation is performed again and the active lever is driven to exit. However, the operation becomes complicated. Moreover, in order to make the structure that does not cause the release operation impossible, it is conceivable to divide the open link or the active lever into a plurality of members and further connect them with a spring or the like, but the number of members increases and the device becomes complicated. Production cost increases.

  The present invention has been made in view of the above-described background, and provides a vehicle door lock device that avoids a state in which a release operation is impossible without greatly changing the member structure or adding a member.

A door lock device for a vehicle according to the present invention is provided on a door of a vehicle and lifts a latch mechanism that latches a latch member provided on a body of the vehicle. An open link that contacts and presses the lift lever, an open lever that drives the open link to press the lift lever by the open link, and a lever drive disabled position that disables the press of the lift lever by the open link And an active lever that drives the open link, and the active lever drives the open link only in the direction of the lever drive impossible position when the open link is driven by the open lever, and in the reverse direction. to have a one-way drive unit for a non-driven, the one-way drive unit, the O A guide pin formed on Nrinku, the guide pin is formed into the active lever is a guide hole which is fitted to be floating, the guide hole, the when the open link presses the lift lever guide A sliding edge portion on which the pin slides is provided on the opposite side of the lever drive impossible position direction, a pressing edge portion connected to one end of the sliding edge portion, a connecting portion connected to the pressing edge portion and a swing of the active lever. And a return edge extending in the moving direction and continuing to the other end of the sliding edge.

Furthermore, it is preferable that the inside of the guide hole is formed to be larger than the diameter of the guide pin .

Next, a mode in which the above-described present invention is applied will be described. It is preferable to include a pressing mechanism that presses one side surface of the open link to make the guide pin slide in contact with the sliding edge portion of the guide hole. Further, the pressing mechanism, to have a pressing member which is swingably pivotally supported on the door, and a biasing member for biasing the one end of the pressing member on the one side of the open link preferable. Furthermore, it is preferable that the hole width of the return edge portion of the guide hole is larger than the hole width of the pressing edge portion along the swinging direction of the active lever.

  In the vehicle door lock device of the present invention described above, since the active lever is provided with a one-way drive unit such as a guide hole having a floating range, the open link cannot shift to the unlocked state during the unlocking operation. It will no longer fall into a state where it cannot be released. Further, the guide hole can be formed simply by expanding a conventional long hole, and does not require a large change in the member structure or addition of a member.

The best mode for carrying out the present invention will be described with reference to FIGS. FIG. 1 is a side view illustrating a vehicle door lock device according to an embodiment of the present invention incorporated in a vehicle door. The vehicle door lock device 1 according to the embodiment includes a lift lever 2, an open link 3, an open lever 4, an active lever 5, and a cancel lever 7 supported by a housing 80. FIG. 1 shows a state viewed from the inside of the door when the open link 3 is driven by the open lever 4 during the unlocking operation from the locked state to the unlocked state. FIG. 2 is a right side view of the vehicle door lock device 1 shown in FIG. 1, and the lift lever 2, the hooked member (striker 81) and the hooking mechanism (latch 82, pole 83) of the present invention. Is shown.

As shown in FIG. 2, the lift lever 2 is held by the housing 80 so as to be swingable, and is connected to a pole 83 which is a latching means. The pole 83 hooks a latch 82 that is hooked to a rod-like striker 81 that is a hooked member . The lift lever 2 is urged counterclockwise in the drawing by an urging member (not shown) and is maintained at the initial position. The lift lever 2 is configured to release the latch 82 by swinging the pole 83 clockwise when pressed by the open link 3. The latch 82, which has been unlocked, swings clockwise in the drawing and assumes a release posture 82A indicated by a two-dot chain line, and the striker 81A can be released to the left in the drawing.

  As shown in FIG. 1, the open link 3 is a vertically long and substantially rod-shaped member, is disposed below the lift lever 2, and is supported by the open lever 4 and the active lever 5. A vertically long engagement hole 31 with a narrowed center is formed at the lower end of the open link 3. The engagement lever 44 of the open lever 4 is fitted in the engagement hole 31. On the left side of the upper end of the open link 3 in the figure, a guide pin 32 that protrudes to the back side of the drawing is provided. The guide pin 32 is fitted in the guide hole 6 of the active lever 5. Further, on the right side of the upper end of the open link 3, a pressing portion 33 that extends upward is provided.

  The open lever 4 is a member that extends in the thickness direction of the door (front and back direction of the paper surface) and is pivotally supported so as to be swingable. More specifically, the open lever 4 has a pivot hole 41 substantially at the center, and the pivot hole 41 is pivotally supported by the housing 80 so as to be swingable. Further, the open lever 4 has an outward arm extending from the approximate center toward the door outer wall on the back side of the paper, and an inward arm extending from the approximate center toward the inner wall on the near side of the paper. . As illustrated, the upper side of the end portion of the outward arm is bent substantially horizontally to form a connection hole 42. The connecting hole 42 is connected to an outside handle (not shown) via a connecting member. When the outside handle is operated, the connecting hole 42 is pushed down.

The inward arm of the open lever 4 is divided into an upper and lower fork at the end, the lower side is bent substantially horizontally to form a pressed portion 43, and the upper side is an engagement lever 44. As shown in FIG. 1, the engagement lever 44 is fitted into the engagement hole 31 on the lower side of the open link 3 from the back side of the drawing. Therefore, the engagement lever 44 can drive the open link 3 upward, and serves as a fulcrum when the open link 3 swings between the upright state and the inclined state. The pressed portion 43 is connected to an inside handle (not shown) via a connecting member. When the inside handle is operated, the pressed portion 43 is pushed up. Further, the open lever 4 is urged in a swinging direction in which the engagement lever 44 is lowered by an urging member (not shown) and is maintained at the initial position. That is, only when the outside handle or the inside handle is operated, the engagement lever 44 is raised to drive the open link 3 upward.

The active lever 5 is a member that is pivotally supported by the housing 80 and that locks the open link 3 from the unlocked state to the locked state. The state in which the open link 3 can press the lift lever 2 is an unlocked state. Further, the locked state is when the open link 3 cannot press the lift lever 2, that is, when the open link 3 is in the lever drive impossible position. FIG. 3 is a diagram for explaining the shape of the active lever 5 and will be described in detail with reference to FIG. The active lever 5 has a pivot hole 51 on the lower side of the center, and the pivot hole 51 is pivotally supported by the housing 80 so as to be swingable. The active lever 5 has a first arm 52 extending to the lower left in the figure, a second arm 54 extending to the lower right in the figure, and a third arm 56 extending upward in a substantially fan shape. A connecting hole 53 formed at the tip of the first arm 52 is connected to a lock knob inside the door via a connecting member. A contact portion 55 formed at the tip of the second arm 54 is connected to a lock device outside the door. Further, an engagement groove 57 formed on the upper left side of the third arm 56 in the drawing is engaged with a drive mechanism (not shown) driven by a motor. The motor is configured to be remotely operated, for example, by a smart entry function. The active lever 5 can be operated from any of a lock knob, a lock device, and a motor. The active lever 5 swings clockwise around the pivot hole 51 in the unlocking operation, and swings counterclockwise in the locking operation. Further, the active lever 5 by an unillustrated urging member, is biased to be retained in position and the position of the unlocked state of the lock state.

As shown in FIG. 3, a guide hole 6 corresponding to the one-way drive portion of the present invention is formed on the right side of the third arm 56 of the active lever 5 in the drawing. The peripheral edge of the guide hole 6 is connected to a sliding edge 61 that extends vertically on the right side in the drawing, a pressing edge 62 that is continuous with the upper end of the sliding edge 61, and bulges upward in a bag path, and a pressing edge 62. And a return edge 63 that extends from the upper left to the lower right and then returns to the lower end of the sliding edge 61. A hole width W1 from the return edge 63 to the sliding edge 61 is larger than a hole width W2 of the pressing edge 62 in the swing direction of the active lever 5. A guide pin 32 of the open link 3 is fitted in the guide hole 6. The inside of the guide hole 6 is formed so as to be larger than the diameter of the guide pin 32, and the floating range 64 is at the center thereof.

The cancel lever 7 corresponds to the pressing mechanism of the present invention, and is a member that presses the left side surface of the open link 3 in the right direction in the drawing. The cancel lever 7 is a member bent in a “<” shape having a pivot hole 71 at the substantially center, and the pivot hole 71 is pivotally supported by the housing 80. A pressing portion 72 is formed on the right side of the lower end of the cancel lever 7, and the pressing portion 72 is urged by an urging member (not shown) to constantly press the left side surface of the open link 3 to the right. Yes. The cancel lever 7 is driven from the lift lever 2 when the door is closed in a locked state to bring the locked state into an unlocked state, and is also used as a pressing means in this embodiment. The biasing force of the biasing member that biases the cancel lever 7 is set to be smaller than the biasing force of the biasing member that biases the active lever 5.

  Next, as a previous stage for explaining the operation of the door lock device 1 of the embodiment, the configuration of the conventional door lock device and the state in which the release operation cannot be performed will be described. The conventional door lock device 9 is different from the device 1 of the embodiment in the structure of the active lever 5, and other members are used in common. FIG. 4 is a diagram for explaining a conventional active lever 95, in which a long hole 96 is provided instead of the expanded guide hole 6 of the present invention. The long hole 96 is formed in the vertical direction, and the right edge in the figure is at the same position as the sliding edge 61 of the guide hole 6 of the embodiment. Actually, the guide hole 6 of the embodiment is formed by expanding the long hole 96 to the left. Further, the width of the long hole 96 in the left-right direction substantially matches the diameter of the guide pin 32. That is, the guide pin 32 is guided in the long hole 96 only in the vertical direction. When the active lever 95 swings and the long hole 96 swings left and right in the figure, the guide pin 32 is driven in both directions.

  5A and 5B are diagrams for explaining the operation of the conventional door lock device 9. FIG. 5A is an unlocked state, FIG. 5B is a locked state, and FIG. 5C is an unlocking operation from the locked state to the unlocked state. A state in which the release operation by the handle is superimposed on the way, (4) shows a state in which the release operation is impossible. In the unlocked state of FIG. 5A, the active lever 95 swings clockwise, the guide pin 32 is driven rightward by the long hole 96, and the open link 3 is in an upright state. When the release operation is performed in this upright state, the open link 3 is driven by the open lever 4 to rise. At this time, since the guide pin 32 is guided right above by the long hole 96, the main body of the open link 3 is also lifted right above as shown by the arrow A in the figure, and the pressing portion 33 pushes up the lift lever 2, The latch 82 latched by the pole 83 is released.

In the locked state (2), the active lever 95 swings counterclockwise, the guide pin 32 is driven to the left by the long hole 96, and the open link 3 is inclined. The long hole 96 is also inclined. When the release operation is performed in this state, the open link 3 is lifted by being driven by the open lever 4. At this time, since the guide pin 32 is guided toward the upper left by the long hole 96, the main body of the open link 3 operates obliquely upward as indicated by an arrow B in the figure and does not contact the lift lever 2. That is, latching of the latch 82 by the pole 83 is maintained. Note that a clockwise biasing force is applied to the active lever 95 by the cancel lever 7 via the guide pin 32 of the open link 3, but the biasing force of the biasing member of the cancel lever 7 is applied to the active lever 95 . Since it is smaller than the urging force of the urging member , the active lever 95 is held at the locked position.

Next, consider a case where an unlock operation to the unlock state is instructed by the smart entry function in the lock state of FIG. Normally, the motor is actuated and the active lever 95 swings clockwise to shift to the unlocked state (1). However, when the door handle is operated during the transition from (2) to (1), the state (3) is obtained. At this time, the clockwise swing of the active lever 95 indicated by the arrow C and the drive from the open lever 4 indicated by the arrow D act on the open link 3 in an overlapping manner. Then, the open link 3 that is driven and operates obliquely upward is driven rightward by the active lever 95. As a result, the open link 3 comes into contact with the lift lever 2 from the side and falls into the state (4) where the release operation is impossible. In (4), the open link 3 is urged in the direction indicated by the arrow E by the urging member of the open lever 4. However, since the motor is stopped in this state, the active lever 95 stops in the locked state. Here, even if the release operation is performed by operating the handle, the open link 3 cannot contact the lift lever 2.

  Next, the operation of the door lock device 1 according to the embodiment of the present invention will be described. First, consider a case where a release operation is performed when the door lock device 1 of the embodiment is in the unlocked state and the locked state. In the door lock device 1 of the embodiment, the cancel lever 7 always presses the open link 3 rightward in the figure, so that the guide pin 32 is pressed by the sliding edge 61 on the right side of the guide hole 6. Therefore, when the open link 3 is pressed, the guide pin 32 rises while slidingly contacting the sliding edge 61, and the open link 3 operates in the same manner as in FIGS. 5 (1) and (2) of the conventional device 9. . Next, consider the lock operation from the unlocked state to the locked state. This locking operation is also performed in the same manner as before. This is because the sliding edge 61 on the right side of the guide hole 6 presses the guide pin 32 and drives it counterclockwise. That is, the guide hole 6 that is a one-way drive portion performs counterclockwise driving in the same manner as in the prior art.

Third, consider the unlock operation from the locked state to the unlocked state. In the unlocking operation, the door lock device 1 of the embodiment operates differently from the conventional one. When the active lever 5 swings clockwise and the open link 3 is driven from the locked state to the unlocked state, the sliding edge portion 61 operates in advance with respect to the guide pin 32. Therefore, the guide pin 32 is not driven into the guide hole 6. If no force from other members acts on the open link 3, the guide pin 32 moves in the free range 64. Here, the urging force of the urging member that returns the open lever 4 to the initial position and the pressing force of the cancel lever 7 act on the open link 3. Accordingly, the open link 3 is pressed downward and rightward, and the guide pin 32 is driven to the unlocked state while remaining below the sliding edge 61.

  Finally, consider a case where a release operation is superimposed during the unlock operation from the locked state to the unlocked state. FIG. 6 is a diagram for explaining the operation of the door lock device 1 according to the embodiment to avoid the state in which the release operation cannot be performed. (1) is a state in which the release operation by the handle is superimposed in the middle of the unlock operation, (2) Indicates an unlocked state after avoiding the release operation impossible state. In the door lock device 1 of the embodiment, the open link 3 that is driven upward by the open lever 4 and then driven to the right by the active lever 5 is the same as in the prior art until it contacts the lift lever 2 from the side. Works. However, since the guide hole 6 is widened, the guide pin 32 of the open link 3 is not restrained by the guide hole 6 and moves freely in the inner free range 64. Therefore, as shown by arrow F in FIG. 6 (1), the active lever 5 operates to the final clockwise position. That is, the active lever 5 moves from the locked position to the unlocked position.

  When the handle is released in the state of FIG. 6 (1), the pressing force of the open lever 4 that drives the open link 3 upward disappears, and instead the biasing force of the arrow G in the drawing toward the initial position below acts. . Further, a pressing force indicated by an arrow H in the drawing that is pressed to the right by the pressing portion 72 of the cancel lever 7 acts. Driven by these two forces, the guide pin 32 moves down in the free range 64 or slides in contact with the return edge 63, and the open link 3 returns to the initial position below. Then, as shown in FIG. 6B, the guide pin 32 is finally slidably contacted with the sliding edge portion 61 by being pressed by the pressing portion 72 of the cancel lever 7. Then, the open link 3 becomes an upright state below the lift lever 2 and returns to the unlocked state. That is, the state in which the release operation cannot be performed is avoided.

As described above, in this embodiment, the conventional elongated hole 96 of the active lever 5 into which the guide pin 32 of the open link 3 is inserted is expanded, and the guide width W1 is increased along the swinging direction of the active lever 5. By making the hole 6, it became possible to avoid the state in which the release operation is impossible.

It is a side view explaining the door lock device for vehicles of the example of the present invention. It is the figure which looked at the door lock device for vehicles of the example of Drawing 1 from the right. It is a figure explaining the shape of the active lever in the Example of FIG. It is a figure explaining the shape of the conventional active lever. It is a figure explaining the effect | action of the conventional door lock apparatus, (1) is an unlocked state, (2) is a locked state, (3) is cancellation | release by a handle in the middle of the unlocking operation from a locked state to an unlocked state The state where the operation is superimposed, (4) shows the state where the release operation is impossible. It is a figure explaining the effect | action which the door lock apparatus of an Example avoids a release operation impossible state, (1) is the state where release operation by the handle was superimposed in the middle of unlocking operation, (2) is the release operation impossible state It shows the unlocked state after avoiding.

Explanation of symbols

1: Vehicle door lock device 2: Lift lever 3: Open link
31: engagement hole 32: guide pin 33: pressing part 4: open lever 44: engagement lever 5: active lever 6: guide hole (one-way drive part)
61: sliding edge portion 62: return edge portion 64: idle range 7: cancel lever ( pressing mechanism ) 72: pressing portion 80: housing 81: striker ( hooked member )
82: Latch ( holding mechanism ) 83: Pole ( holding mechanism )
9: Conventional vehicle door lock device 95: Conventional active lever

Claims (5)

A lift lever provided on a door of the vehicle and capable of releasing a latching mechanism for latching a latched member provided on a body of the vehicle;
An open link that contacts the lift lever and presses the lift lever;
An open lever that drives the open link and presses the lift lever by the open link;
An active lever that drives the open link at a lever drive impossible position that disables pressing of the lift lever by the open link;
The active lever has a one-way drive unit that drives the open link only in the direction of the lever incapable position when the open link is driven by the open lever, and does not drive in the reverse direction.
The one-way drive unit is a guide pin formed in the open link, and a guide hole formed in the active lever and into which the guide pin is slidably fitted.
The guide hole has a sliding edge on which the guide pin slides when the open link presses the lift lever on the opposite side of the direction of the lever drive impossible position, and one end of the sliding edge. And a return edge that extends in the swinging direction of the active lever and continues to the other end of the sliding edge. apparatus. The vehicle door lock device according to claim 1 , wherein an inner side of the guide hole is formed to be larger than a diameter of the guide pin. 3. The vehicle door lock device according to claim 1 , further comprising a pressing mechanism that presses one side surface of the open link to make the guide pin slide in contact with the sliding edge portion of the guide hole. The pressing mechanism includes a pressing member which is swingably pivotally supported on the door, one end of the pressing member to claim 3 having, a biasing member for biasing said one side of the open link The door lock device for vehicles as described. The hole width from the return edge portion of the guide hole to the sliding edge portion is larger than the hole width in the swinging direction of the active lever of the pressing edge portion swelled like a bag path. Item 5. The vehicle door lock device according to any one of Items 4 to 4 .