CN112746781A - Vehicle door lock system - Google Patents
Vehicle door lock system Download PDFInfo
- Publication number
- CN112746781A CN112746781A CN202011186579.7A CN202011186579A CN112746781A CN 112746781 A CN112746781 A CN 112746781A CN 202011186579 A CN202011186579 A CN 202011186579A CN 112746781 A CN112746781 A CN 112746781A
- Authority
- CN
- China
- Prior art keywords
- door
- child safety
- safety lock
- state
- latch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
- E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
- E05B81/21—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening with means preventing or detecting pinching of objects or body parts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
- E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
- E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/56—Control of actuators
Landscapes
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention provides a door lock system which has a function of automatically closing a door in a half-open state and a child safety lock function of preventing fingers from being clamped between the door in the half-open state and a vehicle body. The system includes a door latch device 4, a child safety lock state detection unit 63, and a control unit 11, and the door latch device 4 includes: the child safety lock device comprises a latch mechanism 6 having a fork 20 and a pawl lever 21, a closing mechanism 10 for driving the fork 20 located at a half-latch position to rotate to a latch position, and a child safety lock mechanism 9 for switching a latch state of a striker 15 by the latch mechanism 6 between an unlock state which can be released by an operation of an inner handle 3 and a lock state which cannot be released, wherein a child safety lock state detection unit 63 detects whether the child safety lock mechanism 9 is in the unlock state or the lock state, and a control unit 11 executes a child safety lock priority mode for disabling the closing mechanism 10 based on a detection of the lock state by the child safety lock state detection unit 63.
Description
Technical Field
The present invention relates to a door lock system.
Background
Conventionally, there is known a door latch device including a child safety lock mechanism that cannot open a door even if an inside handle is operated (for example, refer to patent document 1).
Further, there is known a door latch device provided with a mechanism for automatically forming a closed state if a door is in a half-open state (for example, refer to patent document 2).
The child safety lock mechanism is provided to prevent a door from being opened by operating an inside handle when a child is seated on a rear seat. Therefore, in the door latch device including the child safety lock mechanism, when a function of automatically closing the door when the door is in the half-open state is added, there is a possibility that a finger of a child may be caught between the door and the vehicle body.
Patent document
Patent document 1: japanese patent laid-open No. 2005-273173
Patent document 2: japanese patent laid-open publication No. 2017-101412
Disclosure of Invention
The invention provides a door latch device which has a child safety lock function and a function of automatically closing a door in a half-open state, and does not cause fingers to be caught between the door in the half-open state and a vehicle body.
In order to solve the above problems, the present invention provides a door lock system including a door latch device, a child safety lock state detection unit, and a control unit, the door latch device including: a latch mechanism including a fork rotatable to a latch position for engaging with a striker on a vehicle body side, an open position for releasing an engagement with the striker, and a half-latch position between the latch position and the open position, and a claw lever engaged with the fork and positioned at the latch position; a closing mechanism for driving the fork located at the half-latching position to rotate to the latching position; and a child safety lock mechanism that switches an engagement state of the striker by the lock mechanism to an unlocked state that is releasable by an operation of an inner handle and a locked state that is not releasable, wherein the child safety lock state detection unit detects whether the child safety lock mechanism is in the unlocked state or the locked state, and the control unit executes a child safety lock priority mode that disables the closing mechanism based on a detection of the locked state by the child safety lock state detection unit.
According to this configuration, if the child safety lock priority mode is set, the fork does not rotate from the half-latched position to the latched position by disabling the drive of the closing mechanism. Therefore, it is possible to reliably prevent fingers and the like from being caught between the door and the vehicle body.
Preferably, the control unit is capable of switching the child safety lock priority mode to a normal mode in which the closing mechanism is drivable.
According to this configuration, if a finger is not likely to be pinched between the door and the vehicle body, the door in the half-open state can be quickly brought into the closed state by selecting the normal mode.
Preferably, the child safety lock includes a mode switch capable of switching between the normal mode and the child safety lock priority mode.
With this configuration, the normal mode and the child safety lock priority mode can be switched easily.
Preferably, the child safety lock includes an automatic opening/closing device that automatically opens and closes the door with respect to the vehicle body, and the control unit stops the door in a half-opened state when the door is operated to a closed state by the automatic opening/closing device in the child safety lock priority mode.
With this structure, even in a type of automatically openable and closable door such as a slide door, it is possible to prevent fingers from being caught between the door and the vehicle body.
According to the present invention, even if a child safety lock function in which the locked state of the striker and the fork cannot be released by operating the inner handle and an automatic closing function in which the fork in the half-latch position is automatically rotated to the latch position are combined, the automatic closing function cannot be executed as long as the child safety lock priority mode is set. Therefore, it is possible to safely use the vehicle without worrying about fingers or the like being caught between the door and the vehicle body.
Drawings
FIG. 1 is a schematic front view of a vehicle door provided with a vehicle door latch apparatus of an embodiment of the present invention.
Fig. 2 is a perspective view showing internal components, with a cover and the like of the vehicle door latch device shown in fig. 1 removed.
FIG. 3 is a front view of the vehicle door latch apparatus shown in FIG. 2.
Fig. 4 is a side view of fig. 2.
FIG. 5 is a front view of the main locking mechanism and latch mechanism of the vehicle door latch apparatus shown in FIG. 2.
Fig. 6 is a side view of fig. 5.
Fig. 7 is a front view of the sub-lock mechanism shown in fig. 2 in an unlocked state.
Fig. 8 is a front view of the sub-lock mechanism shown in fig. 7 in a locked state.
Fig. 9 is a block diagram of a vehicle door lock system according to an embodiment of the present invention.
Fig. 10 is a flowchart of an automatic shutdown process executed by the ECU of fig. 9.
Fig. 11 is a flowchart of child safety lock processing executed by the ECU of fig. 9.
Detailed Description
Hereinafter, embodiments according to the present invention will be described with reference to the drawings. The following description is merely exemplary in nature and is not intended to limit the present invention, its applications, or uses. In the following description, the vehicle length direction is sometimes referred to as the X direction, the vehicle width direction is sometimes referred to as the Y direction, and the vehicle height direction is sometimes referred to as the Z direction.
A door latch device including a closing mechanism described later is provided on doors of a driver seat and a passenger seat in front of the vehicle. On the other hand, a door latch device including a closing mechanism and a child safety lock mechanism described later is provided on a door of a rear seat behind the vehicle. That is, the child safety lock mechanism is provided only on the door of the rear seat.
Fig. 1 shows a door 1 provided with a rear side of a door latch device 4 according to the present embodiment. An outer handle 2 and an inner handle 3 are provided on the door 1. The door 1 is rotatably attached to a vehicle body by a hinge (not shown).
As shown in fig. 2, the door latch device 4 includes a latch mechanism 6, an opening mechanism 7, a main lock mechanism 8, a sub lock mechanism 9, and a closing mechanism 10 in a housing 5. The door latch device 4 is electrically connected to an ECU11(Electronic Control Unit) mounted on the vehicle, and is driven by a command signal from the ECU 11.
(case 5)
The housing 5 is made of resin and includes a 1 st housing portion 12 disposed along an end surface (substantially YZ plane) of the door 1 and a 2 nd housing portion 13 disposed along an inner panel (XZ plane) of the door 1.
As shown in fig. 3 and 4, the 1 st housing portion 12 is provided with a resin stopper 14. The latch mechanism 6, a part of the opening mechanism 7, and a part of the main lock mechanism 8 are disposed in the stopper 14. Further, an insertion groove 16 into which the striker 15 is inserted is formed in the stopper 14. The insertion groove 16 is formed in a substantially U-shape that opens on the X-direction outer side and the Y-direction vehicle inner side.
The other part of the opening mechanism 7, the other part of the main lock mechanism 8, and the sub lock mechanism 9 are disposed in the 2 nd housing portion 13. A part of the end face of the stopper 14 is covered with a metal cover 17. An insertion groove 18 is formed in the cover 17 at a position corresponding to the insertion groove 16. The 2 nd accommodating portion 13 is covered with a cover 19 (see fig. 1) made of resin.
(latch mechanism 6)
The latch mechanism 6 is a mechanism for holding the door 1 in a closed state by locking a striker 15 (see fig. 4) disposed on the vehicle body by closing the door 1 with respect to the vehicle body.
As shown in fig. 2, the latch mechanism 6 includes a fork 20 and a pawl lever 21.
As shown in fig. 6, the yoke 20 is substantially U-shaped, includes a 1 st arm portion 22 located on the vehicle outer side and a 2 nd arm portion 23 located on the vehicle inner side, and is rotatably attached to the stopper 14 around a rotation shaft 20 a. A 1 st locking support portion 24 and a 2 nd locking support portion 25, which engage with and disengage from a pawl lever 21 described later, are formed on the outer edges of the 1 st arm portion 22 and the 2 nd arm portion 23, respectively. The fork 20 is biased clockwise about the rotation shaft 20a by a spring (not shown) and rotated to an open position. The fork 20 in the open position is pressed against the striker 15 entering the insertion slot 16 and rotates in the counterclockwise direction. The fork 20 is latched to the striker 15 at the half-latch position, and maintains the door 1 in the closed state at the latch position. The half-latch position and the latch position of the fork 20 are detected by the half-latch position detection switch 26 and the latch position detection switch 27, respectively (refer to fig. 9). Further, a pressing support portion 28 is formed on the outer edge of the fork 20. The fork 20 can be rotated counterclockwise about the rotation axis 20a in the figure by pressing the pressing support portion 28 by the closing mechanism 10 described later.
The pawl lever 21 is rotatably attached to the stopper 14 about a rotation shaft 21a, and is biased counterclockwise about the rotation shaft 21a by a spring (not shown). An engaging portion 29 that engages with or disengages from the 1 st engaging support portion 24 and the 2 nd engaging support portion 25 of the fork 20 is formed on the outer edge of the pawl lever 21. The locking portion 29 is locked to the 1 st locking support portion 24 when the fork 20 is rotated to the half-latching position, and is locked to the 2 nd locking support portion 25 when the fork 20 is rotated to the latching position. The locking portion 29 is locked to the 1 st locking support portion 24 in a half-open state, and is locked to the 2 nd locking support portion 25 in a closed state.
(opening and closing mechanism)
As shown in fig. 2, the opening mechanism 7 includes an opening lever 30 connected to the pawl lever 21 on the same rotation shaft 21a, a link 31 for operating the opening lever 30, and an outer lever 32 and an inner lever 33 for operating the link 31.
The outer lever 32 includes a 1 st link 34 connected to the outer handle 2 by a cable (not shown), and a 1 st operating lever 35 engaged with the link 31.
The inside lever 33 includes a 2 nd connecting rod 36 connected to the inside handle 3 by a cable (not shown), and a 2 nd operating rod 37 for operating the link 31. They are rotatably attached to a rotating shaft 33a protruding from the 2 nd housing portion 13.
As shown in fig. 7, the 2 nd connecting rod 36 includes a cylindrical portion 38 rotatably supported by the rotating shaft 33a, a 1 st protruding portion 39 extending in one direction from the cylindrical portion 38, and a 2 nd protruding portion 40 extending in the other direction. The edge of the 1 st projection 39 is formed to be able to press a pressing edge 41 of the 1 st slider described later. The 2 nd projecting portion 40 includes a connecting portion 42 to which a wire (not shown) extending from the inner handle 3 is connected. By operating the inner handle 3, the 2 nd link 36 rotates counterclockwise about the rotation shaft 33a from the non-operation position shown in fig. 7. Next, the slider 82 located at the coupling position is pressed by the pressing edge 41 in a manner described later, and the 2 nd operating lever 37 is rotated via the slider 82.
The 2 nd operating lever 37 includes a guide portion 44 and a pressing portion 45, and is rotatably supported by the rotating shaft 33 a. The guide portion 44 is formed with a guide groove 46 in a U-shape. The pressing portion 45 further extends from one of the guide portions 44 and is formed to be able to press the link 31 (see fig. 2).
(Main locking mechanism 8)
The main lock mechanism 8 switches the engagement of the striker 15 by the latch mechanism 6 between an unlocked state and an unlocked state, which are releasable by the operation of the outer handle 2 and the inner handle 3. That is, the main lock mechanism 8 is a mechanism for switching the operation of the inner handle 3 and the outer handle 2 to the active state and the inactive state.
As shown in fig. 2 and 5, the main lock mechanism 8 includes a 1 st motor 47, a 1 st worm (work gears)48, a 1 st worm wheel 49, a rotor 50, a joint 51, and a 1 st switching lever 52. In addition, an emergency shaft (emergency draft) 53 is provided in the main lock mechanism 8.
A 1 st worm 48 is attached to an output shaft of the 1 st motor 47. The 1 st worm wheel 49 is rotatably attached to the 2 nd housing portion 13 about a rotation shaft 49a, and meshes with the 1 st worm 48. The rotor 50 is rotatably attached to the 2 nd housing portion 13 about a rotation shaft 50a and is interlocked with the 1 st worm wheel 49. The joint 51 is disposed in the 2 nd housing part 13 and is interlocked with the rotor 50. The 1 st switching lever 52 is disposed on the stopper 14 and connected to the joint 51. The 1 st switching lever 52 can be rotated to move the link 31 to an unlock position where it can be engaged with the open lever 30 and to a lock position where it cannot be engaged.
The emergency shaft 53 is used to mechanically lock and drive the main lock mechanism 8 in an emergency where the 1 st motor 47 cannot be driven. The emergency shaft 53 is rotated by inserting a plate member (not shown) into the insertion hole 54 and rotating the plate member in the clockwise direction. The rotation of the panic shaft 53 causes the joint 51 to move upward and the 1 st switching lever 52 to rotate, thereby moving the link 31 to the lock position.
(auxiliary locking mechanism 9)
The sub-lock mechanism 9 is a mechanism for switching the locking of the striker 15 by the latch mechanism 6 between an unlocked state and an unlocked state by operating the inner handle 3 (inner lever 33). The secondary locking mechanism 9 may be used as a child safety lock mechanism when a small child is riding in the car.
As shown in fig. 7 and 8, the sub-lock mechanism 9 includes a 2 nd motor 55, a 2 nd worm 56, a 2 nd worm wheel 57, and a 2 nd switching lever 58.
The 2 nd motor 55 is disposed in the 2 nd accommodation portion 13. A 2 nd worm 56 is attached to an output shaft of the 2 nd motor 55.
The 2 nd worm wheel 57 has a cylindrical portion 59 rotatably supported by a rotary shaft 57a protruding from the 2 nd housing portion 13. The 1 st gear portion 60, the 2 nd gear portion 61, and the contact portion 62 protrude radially outward from the cylindrical portion 59. The 1 st gear portion 60 projects in a fan shape from the cylindrical portion 59, and the 2 nd worm 56 is meshed with the outer periphery thereof. The 2 nd gear 61 protrudes from the cylindrical portion 59 in a semicircular ring shape, and a gear portion 74 of the 1 st rotating lever 64 is meshed with the outer periphery thereof. The 2 nd gear portion 61 and the contact portion 62 are arranged on the same circumference, and they are shifted from the 1 st gear portion 60 in the axial direction. A microswitch 63 as a child safety lock state detection unit is provided in the vicinity of the 2 nd worm wheel 57. When the 2 nd worm wheel 57 is rotated counterclockwise about the rotation shaft 57a, the microswitch 63 is pressed by the contact portion 62 to be in an on state.
The 2 nd switching lever 58 is provided with a 1 st rotating lever 64 and a 2 nd rotating lever 65 arranged to overlap in the Y direction.
The 1 st rotating lever 64 is substantially circular, and a central cylindrical portion 66 thereof is rotatably supported by a rotating shaft 64a protruding from the housing 5. A 1 st notch 69 having a 1 st edge 67 and a 2 nd edge 68 opposed in the circumferential direction is provided in the outer peripheral portion of the 1 st rotating lever 64, and recesses 70 are formed further in the circumferential direction from the 1 st notch 69, respectively. The 1 st contact portion 71 and the 2 nd contact portion 72 protrude upward from each corner formed by the 1 st notch portion 69. A stopper 73 fixed to the housing 5 is located in the 1 st notch portion 69 to limit the rotation range of the 1 st rotation lever 64. Thereby, the 1 st rotating lever 64 rotates between the 1 st operating position (fig. 7) where the 1 st abutting portion 71 abuts against the stopper 73 and the 2 nd operating position (fig. 8) where the 2 nd abutting portion 72 abuts against the stopper 73. A part of the outer peripheral portion of the 1 st rotating lever 64 is constituted by a fan-shaped gear portion 74. The 2 nd gear part 61 of the 2 nd worm wheel 57 meshes with the gear part 74.
The 2 nd rotating lever 65 is constituted by a circular portion 75 and an arm portion 76 extending from the circular portion 75. A bearing portion 77 is formed at the center of the circular portion 75 and is rotatably supported by the cylindrical portion 38 of the 1 st rotating lever 64. A 2 nd notch portion 78 is formed in an outer peripheral portion of the circular portion 75. At the corner formed by the 2 nd notch portion 78, the 1 st contact portion 79 and the 2 nd contact portion 80 protrude downward. The stopper 73 is located in the 2 nd notch portion 78, and abuts against the 1 st abutting portion 79 and the 2 nd abutting portion 80, respectively, to limit the rotation range of the 2 nd rotation lever 65. Further, the 1 st edge portion 67 of the 1 st rotating lever 64 abuts the 1 st abutting portion 79, and the 2 nd edge portion 68 abuts the 2 nd abutting portion 80. Thus, by the forward and reverse rotation of the 1 st rotation lever 64, the 2 nd rotation lever 65 is also rotated forward and reverse. A long hole 81 is formed in the arm portion 76, and a slider 82 is slidably disposed in the long hole 81. By the rotation of the 2 nd rotating lever 65, the slider 82 moves in the guide groove 46 of the 2 nd operating lever 37 to an interlocking position (fig. 7) where the 2 nd operating lever 37 is rotatable by the rotating operation of the 2 nd link lever 36 and a non-linking position (fig. 8) where the 2 nd operating lever 37 cannot be rotated.
(closing mechanism 10)
As shown in fig. 6, the closing mechanism 10 includes a closing lever 83 rotatable about a rotation axis. A pressing portion 84 protrudes from the outer periphery of the closing lever 83. The closing lever 83 is biased counterclockwise about a rotation shaft 83a in the figure by a spring not shown. When the 3 rd motor 91 (see fig. 9) is driven by an operation signal from the ECU11, the closing lever 83 rotates in the clockwise direction via a wire (not shown). By rotating the closing lever 83, the pressing portion 84 presses the pressing support portion 28 of the fork 20, and the fork 20 can be rotated from the half-latched position to the latched position.
As shown in fig. 9, signals are input to the ECU11 from a key 85 (portable device), an open switch 86, a close switch 87, a lock switch 88, an unlock switch 89, a child safety lock switch 90, a half-latch position detection switch 26, a latch position detection switch 27, a micro switch 63, a mode switching switch 92, and the like. The close switch 87 is a rocker switch that the user uses to toggle whether the closing mechanism 10 needs to be operated. The child safety lock switch 90 is a rocker switch used by a user to switch the state of the sub-lock mechanism 9. The mode switch 92 is a switch for the user to switch between a child safety lock priority mode and a normal mode, which will be described later.
The ECU11 outputs drive signals to the 1 st motor 47, the 2 nd motor 55, the 3 rd motor 91, and the like based on the input signals thereof, and performs opening and closing control of the door 1 in a manner described later.
That is, in the ECU11, if an open signal is input from the close switch 87, the close function is opened so that the closing mechanism 10 of the door latch device of all the doors can operate. Then, in each door latch device, if an on signal is input from the half-latch position detection switch 26, the 3 rd motor 91 is driven to operate the closing mechanism 10. On the other hand, if a close signal is input from the close switch 87, the close function is turned off, so that the closing mechanisms 10 of the latch devices of all the vehicle doors cannot be driven. Next, in each door latch device, even if an open signal is input from the half latch position detection switch 26, the 3 rd motor 91 is not driven, and the closing mechanism 10 is not operated.
Further, in the ECU11, when an on signal is inputted from the child safety lock switch 90, the child safety lock function is turned on, and the 2 nd motor 55 of the door latch device 4 of the door 1 of the rear seat is driven to bring the sub-lock mechanism 9 into the locked state. On the other hand, if a closing signal is input from the child safety lock switch 90, the child safety lock function is closed, and the 2 nd motor 55 of the door latch device 4 of the door 1 of the rear seat is driven to unlock the sub-lock mechanism 9.
(action)
The opening/closing control of the door 1 by the ECU11 will be described below. Here, an automatic closing process of automatically closing the door 1 in the half-open state and a child safety lock process of making it possible to open the door 1 by the outer handle 2 but impossible to open the door 1 by the inner handle 3 will be described.
As shown in fig. 10, in the automatic closing process, whether or not the fork 20 is located at the half latch position is determined by the presence or absence of an on signal input from the half latch position detection switch 26 (step S1). If an on signal is input from the half latch position detection switch 26, the 3 rd motor 91 is driven (step S2). By driving the 3 rd motor 91, the closing lever 83 is rotated clockwise in fig. 6 via a wire not shown, and the pressing portion 84 presses the pressing support portion 28 of the fork 20. Then, it is determined whether or not an on signal is input from the latch position detection switch 27 (step S3). If an on signal is input from the latch position detection switch 27, it is determined that the fork 20 has rotated from the half-latch position to the latch position, and the drive of the 3 rd motor 91 is stopped (step S4). Thereby, the door 1 is automatically changed from the half-open state to the closed state.
As shown in fig. 11, in the child safety lock process, it is determined whether or not an on signal is input from the child safety lock switch 90 (step S11). If an on signal is input from the child safety lock switch 90, a drive signal is output to the 2 nd motor 55 and the normal rotation thereof is driven (step S12). The 2 nd worm wheel 57 is rotated counterclockwise in fig. 7 about the rotation shaft 57a via the 2 nd worm 56 by driving the 2 nd motor 55. Further, by the rotation of the 2 nd worm wheel 57, the 1 st rotating lever 64 rotates clockwise about the rotating shaft 64 a. By the rotation of the 1 st rotating lever 64, the 2 nd rotating lever 65 also rotates clockwise about the rotating shaft 64 a. Thereby, the slider 82 moves to the non-coupling position where it cannot be rotated by the 2 nd link lever 36 in the guide groove 46 of the 2 nd operating lever 37. Then, it is determined whether or not the microswitch 63 is turned on by the contact portion 62 (step S13). If the microswitch 63 is turned on, it is judged that the child safety lock state is turned on and the 2 nd motor 55 is stopped, and this information is displayed on the instrument panel or the like in the vehicle (step S14). The user can confirm whether the vehicle door 1 becomes the child safety lock state through the display.
In this case, if the child safety lock priority mode is set, the closing mechanism 10 is not driven even if the door 1 is in the half-open state. That is, even if an on signal is input from the half latch position detection switch, a drive signal is not output to the 3 rd motor 91 of the closing mechanism 10. Thus, even if a passenger (mainly a child) in the rear seat inserts his or her finger into the gap between the half-opened door 1 and the vehicle body, the passenger can be prevented from being erroneously caught. In the case of closing the door 1, the user may manually close the door 1 after confirming that no finger or the like is pinched between the door 1 and the vehicle body.
If the door 1 is closed, the door 1 cannot be opened even if the inner handle 3 is operated, because the child safety lock state is established. That is, in the child safety lock state, although the 2 nd coupling rod 36 can be rotated by operating the inner handle 3, the slider 82 moves to the non-coupling position where it cannot be pressed by the 2 nd coupling rod 36. Therefore, the link 31 cannot be operated by rotating the 2 nd operating lever 37, and the latch opening mechanism 6 cannot be driven by the opening mechanism 7. Therefore, the door 1 is maintained in the closed state.
On the other hand, in the closed door 1 in the child safety lock state, if the outer handle 2 is operated, the outer lever 32 is rotated in the main lock mechanism 8, and the open lever 30 is rotated via the link 31, as in the case of opening the door 1 in the unlocked state, so that the locked state of the fork 20 by the pawl lever 21 is released, and the door 1 is opened.
Note that, any one of the child safety lock priority mode and the normal mode may be selected by operating the mode changeover switch 92. Alternatively, the child safety lock priority mode and the normal mode may be switched by pressing the switches 87 and 90 for a long time or longer than a predetermined time, instead of the mode switching switch 92, by using a momentary (momentiy) switch as the close switch 87 and the child safety lock switch 90. In this case, the mode display unit for displaying the currently selected mode may be provided on an instrument panel or the like in the vehicle.
In the child safety lock priority mode, as shown in table 1, when the close switch 87 is in the on state, the closing mechanism 10 of the door latch device of the doors of the driver seat and the passenger seat is directly operable, and on the other hand, whether or not the closing mechanism 10 of the door latch device of the doors of the rear seat is operable is switched depending on the state of the child safety lock mechanism. Specifically, when the close switch 87 is in the on state, if the sub-lock mechanism 9 (child safety lock mechanism) is in the unlocked (closed) state, the close switch 87 may be driven. On the other hand, even if the on switch 87 is in the on state, if the sub-lock mechanism 9 (child lock mechanism) is in the locked (unlocked) state, the closing mechanism 10 cannot be driven. If the closing mechanism 10 cannot be driven, the closing mechanism 10 cannot be driven even if the door 1 is in the half-open state.
[ Table 1]
O: can work by: can not work
On the other hand, in the normal mode, as shown in table 2, when the close switch 87 is in the on state, the close mechanism 10 of the door latch device 4 of all the doors can be driven regardless of the state of the sub-lock mechanism 9. Once the closing mechanism 10 is drivable, if it is judged that the vehicle door 1 is in the half-open state, the closing mechanism 10 is automatically driven to become the closed state.
[ Table 2]
O: can work by: can not work
The structure of each part of the present invention is not limited to the structure described in the above embodiment, and various modifications are possible.
Although the above-described embodiment has been described with respect to a normal door of a sash type, the above-described door lock system may be employed in other types of doors 1 such as a slide type door and an electric door.
When the above-described door lock system is employed for a slide type door, the door 1 may be configured to be automatically opened and closed. In this case, if the child safety lock switch 90 is operated, the door 1 is not in the closed state, but is temporarily stopped in the half-open state, as in the case described above. This can effectively prevent fingers from being caught between the door 1 and the vehicle body.
In the above embodiment, the closing mechanism 10 indirectly rotates the fork 20, but the motor may directly drive the rotation shaft of the fork 20 forward and backward through the gear to rotate.
In the above embodiment, the door 1 is set to the child safety lock state by operating the child safety lock switch 90, but may be manually operated. In this case, an operation handle may be provided at the opening end of the door 1 (the portion hidden in the closed state of the door 1), and the slider 82 may be directly or indirectly moved to the non-coupling position by operating the operation handle. Whether or not the operation handle is operated may be detected by a switch, a sensor, or the like that detects an operation position of the operation handle.
In the above embodiment, the child safety lock state detection unit is constituted by the microswitch 63 for detecting the state of the sub lock mechanism 9, but may be constituted by the child safety lock switch 90 operated by the user. In this case, the following configuration may be adopted: in the child safety lock priority mode, the ECU11 disables the closing mechanism 10 by inputting an on signal from the child safety lock switch 90 and enables the closing mechanism to be driven by inputting an off signal.
Description of the symbols
1 … vehicle door, 2 … outer handle, 3 … inner handle, 4 … vehicle door latch device, 5 … housing, 6 … latch mechanism, 7 … opening mechanism, 8 … main locking mechanism, 9 … sub-locking mechanism, 10 … closing mechanism, 11 … ECU, 12 … 1 st receiving portion, 13 … 2 nd receiving portion, 14 … stopper, 15 … striker, 16 … insertion slot, 17 … cover, 18 … insertion slot, 19 … cover, 20 … fork, 21 … pawl lever, 22 … 1 st arm portion, 23 … nd 2 arm portion, 24 … th 1 catch support portion, 25 … nd 2 catch support portion, 26 … half latch position detection switch, 27 … latch position detection switch, 3628 pressing support portion, 29 … catch portion, 30 … opening lever, 31 … connecting lever, 32 … outer lever, …, 3634 inner lever 1 st inner lever, … connecting rod … working connecting rod, … working connecting rod 3638, … working connecting rod …, … working connecting rod 3638, 39 … 1 st projection, 40 … 2 nd projection, 41 … pressing edge, 42 … connecting portion, 43 … bearing portion, 44 … guide portion, 45 … pressing portion, 46 … guide groove, 47 … st 1 st motor, 48 … st 1 worm, 49 … st 1 worm wheel, 50 … rotor, 51 … joint, 52 … 1 st switching lever, 53 … emergency shaft, 54 … insertion hole, 55 … nd 2 motor, 56 … nd 2 worm, 57 … nd 2 worm wheel, 58 … nd 2 switching lever, 59 … cylindrical portion, 60 … first 1 gear portion, 61 … second 2 gear portion, 62 … abutting portion, 63 … microswitch, 64 … first 1 rotating lever, 65 … second 2 rotating lever, 66 bearing portion … cylindrical portion, 67 … first 1 edge portion, 68 … second 2 edge portion, 69 … first groove mouth portion, 70 … recess, … first abutting portion, … second abutting portion, … arm portion …, … circular 3677, 78 … 2 nd notch part, 79 … 1 st contact part, 80 … nd 2 nd contact part, 81 … long hole, 82 … slider, 83 … closing rod, 84 … pressing part, 85 … key, 86 … opening switch, 87 … closing switch, 88 … locking switch, 89 … unlocking switch, 90 … child safety lock switch, 91 … 3 rd motor, 92 … mode switching switch.
Claims (4)
1. A vehicle door lock system, wherein:
the door lock system includes a door latch device, a child safety lock state detection unit, and a control unit,
the vehicle door latch device has:
a latch mechanism including a fork rotatable to a latch position engaging with a striker on a vehicle body side, an open position releasing an engagement with the striker, and a half-latch position between the latch position and the open position, and a claw lever engaged with the fork and positioned at the latch position;
a closing mechanism that drives the fork in the half-latched position to rotate to the latched position; and the number of the first and second groups,
a child safety lock mechanism that switches between an unlocked state in which the striker is locked by the latch mechanism and the unlocked state in which the striker is unlocked by operating an inner handle and a locked state in which the striker is not unlocked,
the child safety lock state detection unit detects whether the child safety lock mechanism is in an unlocked state or a locked state,
the control unit executes a child safety lock priority mode in which the closing mechanism cannot be driven, based on the detection of the locked state by the child safety lock state detection unit.
2. The vehicle door lock system as recited in claim 1,
the control unit may switch the child safety lock priority mode to a normal mode in which the closing mechanism is drivable.
3. The vehicle door lock system as recited in claim 2,
the door lock system includes a mode selector switch capable of switching the normal mode and the child safety lock priority mode.
4. The vehicle door lock system as recited in any one of claims 1 to 3,
the door lock system includes an automatic opening/closing device that automatically opens and closes the door with respect to the vehicle body,
the control unit stops the door in a half-open state when the door is operated to a closed state by the automatic opening/closing device in the child safety lock priority mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019196989A JP7300368B2 (en) | 2019-10-30 | 2019-10-30 | door lock system |
| JP2019-196989 | 2019-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112746781A true CN112746781A (en) | 2021-05-04 |
| CN112746781B CN112746781B (en) | 2023-10-03 |
Family
ID=75485755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011186579.7A Active CN112746781B (en) | 2019-10-30 | 2020-10-29 | door lock system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7300368B2 (en) |
| CN (1) | CN112746781B (en) |
| DE (1) | DE102020128302A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012184578A (en) * | 2011-03-04 | 2012-09-27 | Mitsui Mining & Smelting Co Ltd | Door opening/closing device |
| JP2012241346A (en) * | 2011-05-16 | 2012-12-10 | Mitsui Mining & Smelting Co Ltd | Door latch system for vehicle |
| US20160017645A1 (en) * | 2012-11-27 | 2016-01-21 | Magna Closures Inc. | Closure latch for vehicle door |
| CN107700974A (en) * | 2017-11-10 | 2018-02-16 | 姚明成 | A kind of hardware and software platform is from adhesive back door lock |
| US20180355636A1 (en) * | 2015-11-26 | 2018-12-13 | Mitsui Kinzoku Act Corporation | Automobile door locking device |
-
2019
- 2019-10-30 JP JP2019196989A patent/JP7300368B2/en active Active
-
2020
- 2020-10-28 DE DE102020128302.4A patent/DE102020128302A1/en active Pending
- 2020-10-29 CN CN202011186579.7A patent/CN112746781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012184578A (en) * | 2011-03-04 | 2012-09-27 | Mitsui Mining & Smelting Co Ltd | Door opening/closing device |
| JP2012241346A (en) * | 2011-05-16 | 2012-12-10 | Mitsui Mining & Smelting Co Ltd | Door latch system for vehicle |
| US20160017645A1 (en) * | 2012-11-27 | 2016-01-21 | Magna Closures Inc. | Closure latch for vehicle door |
| US20180355636A1 (en) * | 2015-11-26 | 2018-12-13 | Mitsui Kinzoku Act Corporation | Automobile door locking device |
| CN107700974A (en) * | 2017-11-10 | 2018-02-16 | 姚明成 | A kind of hardware and software platform is from adhesive back door lock |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7300368B2 (en) | 2023-06-29 |
| DE102020128302A1 (en) | 2021-05-06 |
| JP2021070946A (en) | 2021-05-06 |
| CN112746781B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1473428B1 (en) | A lock mechanism | |
| US8146965B2 (en) | Vehicle door lock device | |
| EP2468577B1 (en) | Lid open-close-apparatus | |
| JP4473919B2 (en) | Door latch device for automobile | |
| US8029028B2 (en) | Door lock device | |
| JP5682004B2 (en) | Latch device for vehicle | |
| EP2902574B1 (en) | Vehicle door latch controller | |
| JP5884766B2 (en) | Vehicle door lock device | |
| JP2009013639A (en) | Door latch device for automobile | |
| JP2009235805A (en) | Door lock device | |
| EP0959205B1 (en) | Vehicle door lock | |
| KR20140096188A (en) | Door opening and closing device for car | |
| KR100535053B1 (en) | Door latch for automobile | |
| CN112746781A (en) | Vehicle door lock system | |
| US11891841B2 (en) | Opening and closing device of vehicle sliding door | |
| TWI777047B (en) | Vehicle door lock apparatus | |
| JP7044079B2 (en) | Vehicle door switchgear | |
| JP5810622B2 (en) | Vehicle door lock device | |
| JP2014109110A (en) | Vehicular door latch system | |
| JP6442757B2 (en) | Back door lock device | |
| CN110914509B (en) | Door latch lock device for automobile | |
| EP3575523A1 (en) | Door lock device | |
| US20220065005A1 (en) | Door latch device | |
| CN115704255A (en) | Vehicle door operating device | |
| JP2020176487A (en) | Vehicle door opening/closing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |