JP4221642B2 - Vehicle door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a vehicle door lock device.
[0002]
[Prior art]
  Generally, the vehicle door is held in a closed state with respect to the vehicle body by meshing between a latch disposed on the vehicle door and a pole disposed on the vehicle body. It is detached by operating a handle disposed on the outside or inside of the. As a result, the vehicle door can be opened with respect to the vehicle body. As a vehicle door lock device, a device that forms a lock state by disabling the latch operation by the handle operation by mechanically removing the mechanical linkage (link structure) from the handle operation to the latch is widely known. ing. Further, in the link structure, one using an electric actuator for releasing the mechanical linkage from the handle operation to the latch has been conventionally known. For example, an apparatus disclosed in Japanese Patent Laid-Open No. 2002-38799 is known. However, these devices cannot be switched to the unlocked state because there is no special means for operating the lock lever to switch from the locked state to the unlocked state if the electric actuator fails in the locked state. There was a problem of being. Depending on the door lock device, even in such a case, it may be possible to switch from the locked state to the unlocked state by the key operation of the key cylinder disposed on the vehicle door. In some cases, it is possible to switch from the locked state to the unlocked state by operating a handle disposed inside the vehicle door. However, even if such switching means is provided, the above-described problems may occur if both of the switching means fail. In addition, in a device that does not originally have a means for switching to a locked state by a key operation using a key cylinder or a handle operation, the above-described problems may naturally occur.
[0003]
[Problems to be solved by the invention]
  The present invention is a vehicle door lock device that is capable of switching from a locked state to an unlocked state without depending on a key operation or a handle operation even when an electric actuator fails in a locked state. Let it be an issue.
[0004]
[Means for Solving the Problems]
  The technical means taken in the present invention in order to solve the above-described technique is an unlocked state in which the vehicle door can be opened by door opening means for opening the vehicle door with respect to the vehicle body, or the vehicle door. A link member that switches to a locked state that disables the opening operation of the door, an electric actuator that can switch the link member in both an unlocked state and a locked state, and a movement that is disengaged from the link member at an initial position. And an operation shaft portion that is movable around the axis to move the moving member from the initial position to be engaged with the link member, and the link member can be switched from a locked state to an unlocked state.The movement restriction that restricts the movement of the moving member by contacting the moving member at the initial position and releases the restriction when the operation shaft portion is operated by an operation force of a predetermined amount or more. Members,It is set as the structure provided with.
[0005]
  In this configuration, an operation shaft portion that can switch the link member from the locked state to the unlocked state is provided for the link member that switches between the unlocked state and the locked state. Therefore, even if the electric actuator is out of order, it can be switched from the locked state to the unlocked state by operating the operation shaft portion..
[0006]
  In this configuration, the operation shaft can be switched from the locked state to the unlocked state by rotating the operation shaft portion around the axis. Therefore, the operation is difficult as compared with a case where the operation shaft portion is simply switched by pushing and pulling from the locked state to the unlocked state. Therefore, even when an unauthorized intruder into the vehicle performs a switching operation, the operation is difficult.
[0007]
  Furthermore, unnecessary movement of the moving member can be restricted by the movement restricting member until the operation shaft portion is operated with an operation force of a predetermined amount or more.
[0008]
  Preferably, the link member is covered with a housing, and one end side of the operation shaft portion extends inside the housing and the other end side extends outside the housing.
[0009]
  In this configuration, since the link member is covered with the housing, it is difficult to contact the link member, and it is difficult for an unauthorized intruder to operate the link member. Furthermore, the water resistance of the link member is also ensured.
[0010]
  Preferably, the link member is swingably disposed with respect to the housing and can be switched between an unlocked state and a locked state by the swing, and the moving member is disposed at one end side of the operation shaft portion. It is preferable that the arrangement is such that the linear movement is possible by turning around the axis of the operation shaft and the link member is swung by the linear movement.
[0011]
  In this configuration, the link member is swingable, and the moving member is linearly moved by the rotation of the operation shaft portion, thereby swinging the link member. As a result, the lock state is switched to the unlock state. Therefore, compared with the case where the operating shaft is directly connected to the swing center of the link member and the link member is directly swung by the turning operation, the rotation amount required for switching to the unlocked state is set to be large. Can do. Therefore, the rotation operation of the operation shaft portion by an unauthorized intruder into the vehicle is more difficult.
[0012]
  Preferably, the other end of the housing and the operation shaft portion may be positioned in a door outer panel and a door inner panel that form the vehicle door.
[0013]
  In this configuration, the housing and the operation shaft portion are located in the door outer panel and the door inner panel. Therefore, compared with the case where the shaft portion extends outside the door inner panel, it is not necessary to set a component for extension, and the number of components is small. Moreover, in this structure, compared with the case where it makes it extend, an operation shaft part can be shortened more, and operation of the operation shaft part by the unauthorized intruder to a vehicle becomes more difficult.
[0014]
  Preferably,In contact with the operating shaftRestricts rotation of the operation shaft around the axisWhen the operation shaft portion is operated with an operation force of a predetermined amount or more, the contact is released and the restriction is released.It is good to set it as the structure provided with a rotation control member.
[0015]
  In this configuration,Until the operating shaft is operated with an operating force of a predetermined amount or more,Unnecessary operation shaft by rotation restricting memberPartCan be restricted.
[0016]
  Preferably, the other end has a polygonal cross section, and a groove is formed on the end face of the other end.
[0017]
  In this configuration, since the cross section is polygonal, the operation shaft portion can be rotated using a polygonal wrench. Therefore, the operation at the time of operation becomes easy. Furthermore, since the groove | channel is formed in the end surface, the operating shaft part can also be rotated by the groove | channel.
[0018]
  Preferably, the other end is chamfered.
[0019]
  In this configuration, the polygonal wrench is easily engaged with the other end by chamfering.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
  FIG. 1 shows a state in which a door lock device 10 (vehicle door lock device) is disposed on a door 11 (vehicle door). In FIG. 1, the width of the door 11 is shown as the left-right direction. In the present embodiment, the door 11 will be described as a swing-type back door disposed at the rear of the vehicle. However, the present invention is not limited thereto, and the door lock device 10 is disposed at a door on the side of the vehicle. It may be a thing. The vehicle door 11 is formed from an outer panel 11a (outer panel), an inner panel 11b (inner panel), and an inner trim 11c from the outside of the vehicle to the inside. The door lock device 10 is disposed between the outer panel 11a and the inner panel 11b. The door lock device 10 is entirely covered with a resin housing 12 (housing). The housing 12 prevents moisture inside the housing 12 and prevents unauthorized contact with the inside (contact for operating the door lock device 10 for the purpose of vehicle theft). Further, the door lock device 10 is fixed to the door end side by a screw (not shown) together with a latch mechanism (not shown) arranged on the door end side (the depth side of the paper shown in FIG. 1) of the door 11. ing.
[0021]
  The latch mechanism disposed on the door 11 is a known mechanism including a latch (not shown) and a pole (not shown). When the latch engages with a striker (not shown) disposed on the vehicle body (not shown), the door 11 is held closed with respect to the vehicle body. In the closed holding state of the door 11, the pole restricts the rotation of the latch. However, when the lift lever 13 (shown in FIG. 2) rotates, the pole interlocks with the lift lever 13 and allows the latch to rotate. As a result, the latch and the striker are disengaged, and the door 11 can be opened with respect to the vehicle body.
[0022]
  FIG. 2 shows the structure of the door lock device 10. As shown in FIG. 1, the housing 12 includes a housing 12a outside the vehicle, an inner housing 12b, and the like, and FIG. 2 shows the door lock device 10 with the housing 12b removed. Note that a housing 12c is integrally formed on the lower portion of the housing 12a shown in FIG. The housing 12c is slidably coupled to the housing 12a by a connecting portion 12d.
[0023]
  The door lock device 10 includes an open lever 14, a link 15 (link member), a motor 16 (electric actuator), a wheel gear 17, an arm 18, a lock lever 19, a backup shaft 20 (operation shaft portion), a moving member 21 (moving member). ) Etc.
[0024]
  The open lever 14 is rotatably fixed to the base 23 by a shaft 22 in the left-right direction shown in FIG. A vehicle outer end portion 14 a (shown in FIG. 1) of the open lever 14 is connected to an outside handle 25 (door opening means) disposed on the outer panel 11 a of the door 11 via a rod 24. The open lever 14 rotates with respect to the base 23 by operating the outside handle 25. As shown in FIG. 2, the end 14 b of the open lever 14 on the vehicle inner side is engaged with an engaging claw 15 a formed at the lower end of the link 15 in FIG. 2.
[0025]
  The link 15 extends in the vertical direction shown in FIG. A long hole 15b is formed in the upper end of the link 15 in FIG. A pin 18a formed on the arm 18 is inserted through the long hole 15b in the direction toward the front side of the sheet of FIG. In addition, a flange 15c having an L-shaped cross section extending in the front side of the sheet of FIG. The flange 15 c is located in the vicinity of the flange 13 a formed on the lift lever 13.
[0026]
  In such a configuration, when the outside handle 25 is operated and the open lever 14 is rotated, the end portion 14b moves upward in FIG. As a result, the entire link 15 moves upward in FIG. Then, the flange 15c engages with the flange 13a, and the lift lever 13 rotates. As a result, as described above, the latch operates and the door 11 can be opened. That is, the state shown in FIG. 2 shows an unlocked state in which the door 11 can be opened by the outside handle 25.
[0027]
  Next, a configuration for switching the door lock device 10 from the unlocked state to the locked state (FIG. 3) will be described.
[0028]
  The motor 16 is driven by an operation of a switch (not shown) provided integrally with a vehicle key or a switch (not shown) provided in the vehicle. The output shaft 16a of the motor 16 has a worm gear structure, and a wheel gear 17 is linked to the output shaft 16a. Two engagement pins 17a are formed on the rear side surface of the wheel gear 17 shown in FIG.
[0029]
  A substantially fan-shaped arm 18 is disposed in the vicinity of the wheel gear 17. The arm 18 is disposed so as to be swingable with respect to the housing 12 about a shaft 26. Further, a concave portion 18 b is formed in the arc piece of the arm 18. Further, a pin 18 c is formed in the vicinity of the pin 18 a of the arm 18. As estimated from the above, the pin 18a extends from the front side of the arm 18 in FIG. 2 on the front side, whereas the pin 18c extends from the back side in FIG. Extends in the direction.
[0030]
  In such a configuration, when the motor 16 is driven in one direction, the wheel gear 17 rotates counterclockwise as shown in FIG. 2 via the output shaft 16a. Then, the engagement of the engagement pin 17a and the recess 18b causes the arm 18 to rotate about a predetermined amount in the clockwise direction shown in FIG. As a result, by linking the pin 18a and the elongated hole 15b, the link 15 swings a predetermined amount in the counterclockwise direction shown in FIG. The swinging state is shown in FIG. In the state shown in FIG. 3, the flange 15c is located at a position where it cannot engage with the flange 13a. In this case, even if the link 15 is moved in the upward direction of FIG. 3 by the operation of the open lever 14, the flange 15c and the flange 13a are not engaged and the lift lever 13 does not rotate. That is, in the state illustrated in FIG. 3, the outside handle 25 is in a locked state where the door 12 cannot be opened. When the motor 16 is driven in the other direction in the locked state, the link 15 is moved to the position shown in FIG. 2 via the output shaft 16a, the wheel gear 17 and the arm 18. As a result, an unlocked state is established.
[0031]
  As described above, the link 15 is in the unlocked state when its flange 15c is located at a position where it can be engaged with the flange 13a, and is locked when it is located at a position where it cannot be engaged. It has become.
[0032]
  Next, the configuration of the backup function for manually switching from the locked state to the unlocked state will be described with reference to FIGS.
[0033]
  The lock lever 19 is rotatably disposed on the housing 12a by a shaft 27. A long hole 19a is formed at the upper end of the lock lever 19 in FIG. In the long hole 19a, the above-described pin 18c is inserted in the depth direction of the paper surface shown in FIG.
[0034]
  A backup shaft 20 is disposed in the vicinity of the lower end 19b of the lock lever 19 in FIG. The backup shaft 20 roughly comprises an operation unit 20a and an operation unit 20b.
. The operating portion 20a extends outside the housing 12 through an opening 28 formed in the housing 12a. Further, the operating portion 20 b extends in the housing 12.
[0035]
  In the housing 12, the operation part 20b is supported by the housing 12a by three support parts 29, 30 (rotation restricting members) 31 formed integrally with the housing 12a. Note that the support portions 29, 30, and 31 may not be formed integrally with the housing 12a but may be provided with separate members. The support portion 29 supports the end portion 20c (one end) on the right side of the operating portion 20b shown in FIG. 3 so as to restrict the movement in the vertical direction shown in FIG. As shown in FIG. 7, when the housing 12c is closed with respect to the housing 12a, the end portion 20c is controlled to move in the vertical direction shown in FIG. 7 by the support portion 32 formed on the housing 12c. Supported. Moreover, the support parts 30 and 31 are supporting the action | operation part 20b so that the movement to an up-down direction shown in FIG. 3 may be controlled. Further, as shown in FIGS. 6 and 7, when the housing 12c is closed with respect to the housing 12a, the support portion 33 formed on the housing 12c supports the movement in the vertical direction shown in FIG. is doing. As shown in FIG. 6, the support portion 30 has a concave shape, but the portion of the operating portion 20b that engages with the support portion 30 has an octagonal cross section. Here, since the concave shape of the support portion 30 is configured to match the cross-sectional octagon of the operation portion 20b, the support portion 30 regulates the rotation of the operation portion 20b, that is, the backup shaft 20, about the axis. It also has a function. The support portion 30 prevents the backup shaft 20 from rotating unnecessarily.
[0036]
  Further, a screw portion 34 is formed on the end portion 20c side of the operating portion 20b over a predetermined length in the axial length direction. Further, a moving member 21 is disposed near the end 20c of the operating portion 20b. That is, the operating portion 20 b is inserted through the hole formed in the moving member 21. The screw portion 34 and the moving member 21 have a so-called screw-nut structure. When the backup shaft 20 is rotated around the axis, the moving member 21 linearly moves along the operating portion 20b. It is movable. Further, when the moving member 21 moves linearly, it can be engaged with the end 19 b of the lock lever 19. As shown in FIG. 7, a stopper 35 (movement restricting member) is integrally formed on the housing 12a. In this case, the stopper 35 may not be formed integrally with the housing 12a but may be configured by disposing another member. The stopper 35 restricts the moving member 21 to its initial position (position shown in FIG. 7). Therefore, unnecessary movement of the moving member 21 can be restricted. The stopper 35 also has a function as a jig for knowing the initial arrangement position when the moving member 21 is assembled.
[0037]
  As shown in FIG. 8, the operation unit 20a has a hexagonal cross section. Therefore, the backup shaft 20 can be rotated around the axis by using the hexagon wrench. Furthermore, the end 20d (the other end) is chamfered. Therefore, when the end portion 20d is engaged with the hexagon wrench, it is not necessary to strictly ensure the relative angle in the axial direction, and the engagement is easy. Furthermore, a cross groove 36 (groove) is formed on the end face of the end 20d. Therefore, the backup shaft 20 can be turned around the axis by using a plus driver or the like.
[0038]
  As shown in FIG. 1, the end portion 20 d of the backup shaft 20 is located between the outer panel 11 a and the inner panel 11 b, similarly to the door lock device 10. In this case, depending on the arrangement direction of the backup shaft 20, it is also possible to extend the backup shaft 20 to the vehicle interior side through the inner panel 11b and the inner trim 11c. Compared with such a configuration, in the present embodiment, there is no need to provide a member for extension, and the configuration is simple with a small number of parts. Furthermore, since the backup shaft 20 has a function of switching the locked state to the unlocked state as will be described later, it is desirable that the operation by the unauthorized intruder on the vehicle is more difficult. Also in this respect, in this embodiment, since the extension of the backup shaft 20 can be set shorter, the operation is difficult.
[0039]
  Next, the backup operation by the backup shaft 20 will be described. In the state shown in FIG. 3 (locked state), when the backup shaft 20 is operated in one direction around the axial center with a hexagon wrench or the like, when the operating force exceeds a predetermined amount, The back-up shaft 20 rotates due to the bending. As a result, the moving member 21 tries to move in the left direction in FIG. When the moving torque exceeds a predetermined amount, the moving member 21 moves over the stopper 35 and moves to the left in FIG. This overcoming occurs due to the bending of the connecting portion 12d between the housings 12a and 12c.
[0040]
  By further turning operation of the backup shaft 20, the moving member 21 is engaged with the end 19b of the lock lever 19 (the state shown in FIG. 4). With the further rotation, the moving member 21 moves while rotating the lock lever 19 around the shaft 27 in the clockwise direction shown in FIG. As a result, the lock lever 19 is in the state shown in FIG. In this operation, the rotation of the lock lever 19 causes the link 15 to swing through the long hole 19 a, the pin 18 c and the pin 18 a of the arm 18, and the long hole 15 b of the link 15. This swing is centered around the vicinity of the engaging claw 15a, and as a result, the link 15 is unlocked (backed up).
[0041]
  As described above, even when the motor 16 or the like fails in the locked state, it is possible to switch from the locked state to the unlocked state by directly removing the inner trim 11c and operating the backup shaft 20. Therefore, the door 11 can be opened by the outside handle 25. In this embodiment, the backup shaft 20 can be turned to be switched from the locked state to the unlocked state. Therefore, the operation is difficult as compared with the case where the switching is performed by simply pushing and pulling the backup shaft 20. Therefore, when an unauthorized intruder into the vehicle performs the switching operation, the operation becomes difficult, and the antitheft property of the vehicle is excellent.
[0042]
  Further, in the present embodiment, the rotation of the backup shaft 20 causes the moving member 21 to move linearly, thereby causing the lock lever 19 to oscillate. As a result, the link 15 is oscillated to enter the unlocked state. Switching. In this case, by taking a configuration in which the backup shaft 20 is directly linked to the rotation center of the link 15, the link 15 can be directly rotated by the rotation of the backup shaft 20. However, in this embodiment, since the configuration is such that the moving member 19 is moved, the amount of rotation of the backup shaft 20 required for switching to the unlocked state can be set larger. For example, in the present embodiment, switching to the unlocked state requires rotation of the backup shaft 20 by about seven rotations. Therefore, when an unauthorized intruder into the vehicle performs the switching operation, the operation becomes difficult, and the antitheft property of the vehicle is excellent. In this embodiment, the operation is performed via the lock lever 19, but the movable member 21 and the link 15 can be engaged, and the lock lever 19 can be omitted.
[0043]
【The invention's effect】
  In the present invention, the vehicle door lock device includes an operation shaft portion capable of switching the link member from the locked state to the unlocked state. Therefore, even when the electric actuator is out of order, it is possible to switch from the locked state to the unlocked state by operating the operation shaft portion. In the present invention, the operation shaft can be switched from the locked state to the unlocked state by rotating the operating shaft portion around the axis. Therefore, the operation is difficult as compared with the case where switching from the locked state to the unlocked state is performed simply by pushing and pulling the operation shaft portion. Therefore, even when an unauthorized intruder into the vehicle performs a switching operation, the operation is difficult. Therefore, the antitheft property of the vehicle is excellent.
[0044]
  In the present invention, since the link member is covered with the housing, it is difficult to contact the link member, and it is difficult for an unauthorized intruder to the vehicle to operate the link member. Furthermore, the water resistance of the link member is also ensured.
[0045]
  In the present invention, the link member is swingable, and the moving member is linearly moved by the rotation of the operation shaft portion, thereby swinging the link member. As a result, the lock state is switched to the unlock state. Therefore, compared with the case where the operating shaft is directly connected to the swing center of the link member and the link member is directly swung by the turning operation, the rotation amount required for switching to the unlocked state is set to be large. Can do. Therefore, the rotation operation of the operation shaft portion by an unauthorized intruder into the vehicle is more difficult.
[0046]
  In the present invention, the housing and the operating shaft are located in the door outer panel and the door inner panel. Therefore, compared with the case where the shaft portion extends outside the door inner panel, it is not necessary to set a component for extension, and the number of components is small. Moreover, in this structure, compared with the case where it makes it extend, an operation shaft part can be shortened more, and operation of the operation shaft part by the unauthorized intruder to a vehicle becomes more difficult.
[0047]
  In the present invention, unnecessary movement of the moving member can be regulated by the movement regulating member.
[0048]
  In the present invention, an unnecessary operation shaft is provided by the rotation restricting member.PartCan be restricted.
[0049]
  In the present invention, since the cross section is polygonal, the operation shaft portion can be rotated using a polygonal wrench. Therefore, the operation at the time of operation becomes easy. Furthermore, since the groove | channel is formed in the end surface, the operating shaft part can also be rotated by the groove | channel.
[0050]
  In the present invention, since the other end is chamfered, the polygonal wrench is easily engaged with the other end.
[Brief description of the drawings]
FIG. 1 is a view showing a state in which a vehicle door lock device according to the present invention is disposed on a vehicle door.
FIG. 2 is a diagram showing an unlocked state of the vehicle door lock device according to the present invention.
FIG. 3 is a diagram showing a locked state of the vehicle door lock device according to the present invention.
FIG. 4 is a diagram showing a state in which an operation shaft portion is operated in a locked state of the vehicle door lock device according to the present invention.
FIG. 5 is a diagram showing a state in which the door lock device for a vehicle according to the present invention is switched to an unlocked state by operating an operation shaft portion in a locked state.
6 is a cross-sectional view taken along line AA in FIG.
7 is a cross-sectional view taken along the line BB in FIG.
FIG. 8 is a view of the operation shaft portion as viewed in the direction of the arrow C in FIG.
[Explanation of symbols]
10 Door lock device (Vehicle door lock device)
11 Door (vehicle door)
11a Outer panel
11b Inner panel
12 Housing
15 link (link member)
16 Motor (electric actuator)
20 Backup shaft (operation shaft)
20c End (one end)
20d end (other end)
21 Moving member
25 Outside handle (door opening means)
30 Supporting part (turning restriction member)
35 Stopper (movement restriction member)
36 groove

Claims (7)

A link member that is switched to an unlocked state that enables the opening operation of the vehicle door or a locked state that disables the opening operation of the vehicle door by an opening means that opens the vehicle door with respect to the vehicle body;
An electric actuator capable of switching the link member in an unlocked state and a locked state in both directions;
A moving member disengaged from the link member at an initial position;
An operation shaft that is movable around the axis to move the moving member from the initial position and engage the link member, and the link member can be switched from a locked state to an unlocked state ;
A movement restricting member that abuts the moving member at the initial position to restrict the movement of the moving member and releases the abutment when the operation shaft portion is operated by an operation force of a predetermined amount or more. And a vehicle door lock device. The link member is covered with a housing;
The vehicle door lock device according to claim 1, wherein one end side of the operation shaft portion extends into the housing and the other end side extends out of the housing. The link member is swingably disposed with respect to the housing, and the unlocked state or the locked state can be switched by the swinging;
The moving member is disposed on one end side of the operation shaft portion and is linearly movable by turning around the axis of the operation shaft portion and swinging the link member by the linear movement. The door lock device for vehicles according to claim 2 characterized by things.   4. The vehicle door lock device according to claim 2, wherein the other end of the housing and the operation shaft portion is located in a door outer panel and a door inner panel that form the vehicle door. 5. Contact with the operation shaft portion restricts the rotation of the operation shaft portion around the axis, and when the operation shaft portion is operated with an operation force of a predetermined amount or more, the contact is released and the restriction is released. The vehicle door lock device according to any one of claims 1 to 4, further comprising a rotation restricting member. The other end of the vehicle door lock device according to any one of claims 2 to 5, characterized in that the groove in the end face of the other end is formed with a polygonal cross section. The vehicular door lock device according to claim 6 , wherein the other end is chamfered.

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