CN112746781B - door lock system - Google Patents
door lock system Download PDFInfo
- Publication number
- CN112746781B CN112746781B CN202011186579.7A CN202011186579A CN112746781B CN 112746781 B CN112746781 B CN 112746781B CN 202011186579 A CN202011186579 A CN 202011186579A CN 112746781 B CN112746781 B CN 112746781B
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- 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.)
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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
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- 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
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- 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 both a function of automatically closing a door in a half-open state and a child safety lock function of preventing a finger from being pinched between the door and a vehicle body in the half-open state. The system includes a door latch device 4, a child safety lock state detection unit 63, and a control unit 11, wherein the door latch device 4 includes: the child safety lock priority mode is executed by the control unit 11 in which the child safety lock priority mode is executed in response to detection of the locked state by the child safety lock state detection unit 63, the child safety lock mechanism 9 including the latch mechanism 6 including the fork 20 and the detent lever 21, the closing mechanism 10 for driving the fork 20 located at the half-latch position to rotate to the latch position, and the child safety lock mechanism 9 for switching the locked state of the striker 15 by the latch mechanism 6 to the unlocked state releasable by the operation of the inner handle 3 and the locked state not releasable.
Description
Technical Field
The present invention relates to a door lock (door lock) system.
Background
Conventionally, there is known a door latch device provided with a child safety lock mechanism that cannot open a door even when an inner 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 child from operating the inner handle to open the door when the child sits on the rear seat. Therefore, in the door latch device provided with the child safety lock mechanism, when the function of automatically closing the door when the door is in the half-open state is added, there is a possibility that the fingers of the child may be inserted between the door and the vehicle body and pinched.
Patent literature
Patent document 1: japanese patent laid-open publication No. 2005-273173
Patent document 2: japanese patent application laid-open No. 2017-101412
Disclosure of Invention
The invention provides a door latch device which has both a child safety lock function and a function of automatically closing a door in a half-open state, and does not have to be worried about sandwiching a finger between the door in the half-open state and a vehicle body.
As an aspect of the present invention to solve the above-described problem, there is provided 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 where the fork engages with a striker on a vehicle body side, an open position where the engagement with the striker is released, 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 which drives the fork member located at the half-latch position to rotate to the latch position; and a child safety lock mechanism that switches a locked state of the striker by the latch mechanism to an unlocked state that is releasable by an operation of the 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 wherein the control unit executes a child safety lock priority mode that disables actuation of the closing mechanism based on detection of the locked state by the child safety lock state detection unit.
According to this configuration, the fork is not rotated from the half-latch position to the latched position by disabling actuation of the closure mechanism if in the child-resistant lock priority mode. Therefore, the finger or the like can be reliably prevented from being pinched between the door and the vehicle body.
Preferably, the control unit is configured to switch the child safety lock priority mode to a normal mode in which the closing mechanism is driven.
According to this structure, if it is impossible to sandwich the finger between the door and the vehicle body, the door in the half-open state can be promptly brought into the closed state by selecting the normal mode.
Preferably, the child safety lock device further includes a mode switch capable of switching between the normal mode and the child safety lock priority mode.
According to this structure, the normal mode and the child safety lock priority mode can be simply switched.
Preferably, the child safety lock control device further includes an automatic opening/closing device for automatically opening/closing the door with respect to the vehicle body, and 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.
According to this structure, even in the case of a door of an automatically openable type such as a sliding door, the structure can be made such that a finger or the like is prevented from being interposed between the door and the vehicle body.
According to the present invention, even if the child safety lock function is provided in which the locked state of the striker and the fork cannot be released by operating the inner handle, and the automatic closing function of automatically rotating the fork in the half-latch position to the latch position are provided, the automatic closing function can be not executed as long as the child safety lock priority mode is provided. Therefore, there is no fear that a finger or the like may be pinched between the door and the vehicle body, and the vehicle can be safely used.
Drawings
Fig. 1 is a schematic front view of a vehicle door provided with a vehicle door latch device of an embodiment of the invention.
Fig. 2 is a perspective view of the inner components of the door latch device shown in fig. 1, with a cover or the like removed.
Fig. 3 is a front view of the vehicle door latch device 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 the latch mechanism of the vehicle door latch device shown in fig. 2.
Fig. 6 is a side view of fig. 5.
Fig. 7 is a front view of the secondary lock mechanism shown in fig. 2 in an unlocked state.
Fig. 8 is a front view of the secondary lock mechanism shown in fig. 7 in a locked state.
Fig. 9 is a block diagram of a door lock system according to an embodiment of the present invention.
Fig. 10 is a flowchart of an auto-close process performed by the ECU of fig. 9.
Fig. 11 is a flow chart of a child safety lock process performed by the ECU of fig. 9.
Detailed Description
Embodiments according to the present invention will be described below with reference to the drawings. It should be noted that the following description is merely an essential example, and is not intended to limit the present invention, its applicability, or its uses. In the following description, the vehicle length direction may be referred to as the X direction, the vehicle width direction may be referred to as the Y direction, and the vehicle height direction may be referred to as the Z direction.
A door latch device including a closing mechanism described later is provided to a door of a driver's seat and a passenger seat in front of a 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 a vehicle. That is, the child safety lock mechanism is provided only on the door of the rear seat.
Fig. 1 shows a vehicle 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, ECU) mounted on the vehicle, and is driven by a command signal from the ECU 11.
(Shell 5)
The housing 5 is made of resin, and includes a 1 st housing 12 disposed along an end surface (substantially YZ plane) of the door 1 and a 2 nd housing 13 disposed along an inner panel (XZ plane) of the door 1.
As shown in fig. 3 and 4, the 1 st housing 12 is provided with a stopper 14 made of resin. The stopper 14 is provided with a part of the latch mechanism 6, the opening mechanism 7, and a part of the main lock mechanism 8. Further, the stopper 14 is formed with an insertion groove 16 into which the striker 15 is inserted. The insertion groove 16 is formed in a substantially U shape with an X-direction outer side and a Y-direction vehicle inner side opened.
The other part of the opening mechanism 7, the other part of the main locking mechanism 8, and the sub-locking mechanism 9 are disposed in the 2 nd housing portion 13. A part of the end surface of the stopper 14 is covered with a metal cover 17. The cover 17 is formed with an insertion groove 18 at a position corresponding to the insertion groove 16. The 2 nd housing portion 13 is covered with a resin cover 19 (see fig. 1).
(latch mechanism 6)
The latch mechanism 6 is a mechanism for holding the door 1 in a closed state by closing the door 1 with respect to the vehicle body and locking a striker 15 (see fig. 4) disposed on the vehicle body.
As shown in fig. 2, the latch mechanism 6 includes a fork 20 and a detent lever 21.
As shown in fig. 6, the fork 20 has a substantially U-shape, and includes a 1 st arm 22 located on the vehicle outside and a 2 nd arm 23 located on the vehicle inside, and is rotatably attached to the stopper 14 about a rotation shaft 20 a. A 1 st locking support portion 24 and a 2 nd locking support portion 25, which are to be described later, for engaging with or disengaging from the detent lever 21 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 to rotate in a counter-clockwise direction. Fork 20 snaps to striker 15 in the semi-latched position, maintaining door 1 in the closed condition in the latched position. The fork 20 is positioned at the half latch position and the latch position 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 pressing support portion 28 is pressed by the closing mechanism 10 described later, and the fork 20 can rotate counterclockwise about the rotation shaft 20a in the drawing.
The detent 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). The 1 st locking support portion 24 and the 2 nd locking support portion 25, which engage with or disengage from the fork 20, are formed on the outer edge of the click lever 21. The locking portion 29 is locked to the 1 st locking support portion 24 by rotating the fork 20 to the half-latch position, and is locked to the 2 nd locking support portion 25 by rotating the fork 20 to the latch position. The state in which the locking portion 29 is locked to the 1 st locking support portion 24 is a half-open state, and the state in which it is locked to the 2 nd locking support portion 25 is a closed state.
(opening and closing mechanism)
As shown in fig. 2, the opening mechanism 7 includes an opening lever 30 coupled to the same rotation shaft 21a as the click lever 21, a link (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 lever 34 connected to the outer handle 2 via a cable (not shown), and a 1 st operating lever 35 engaged with the link 31.
The inner lever 33 includes a 2 nd link lever 36 connected to the inner handle 3 via a cable (not shown), and a 2 nd operating lever 37 for operating the link 31. They are rotatably mounted to a rotation shaft 33a protruding from the 2 nd housing portion 13.
As shown in fig. 7, the 2 nd link 36 includes a cylindrical portion 38 rotatably supported by the rotation 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 portion of the 1 st projection 39 is formed to be capable of pressing a pressing edge 41 of the 1 st slider described later. The 2 nd projection 40 includes a connecting portion 42 to which a wire (not shown) extending from the inner handle 3 is connected. By the operation of the inside handle 3, the 2 nd link lever 36 rotates counterclockwise about the rotation shaft 33a from the non-operation position shown in fig. 7. Next, the slider 82 located at the connection 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 working rod 37 includes a guide portion 44 and a pressing portion 45, and is rotatably supported by the rotation shaft 33a. The guide portion 44 is formed with a guide groove 46 having a U-shape. The pressing portion 45 is further extended from one of the guide portions 44, and is formed so as to be capable of pressing the link 31 (see fig. 2).
(Main locking mechanism 8)
The main lock mechanism 8 switches the latching of the striker 15 by the latch mechanism 6 to an unlocked state and an unreleasable locked state which can be released by the operation of the outside handle 2 and the inside handle 3. That is, the main locking 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 gear (worm gears) 48, a 1 st worm wheel 49, a rotor 50, a joint 51, and a 1 st switching lever 52. Furthermore, an emergency shaft (emergency shaft) 53 is provided in the main lock mechanism 8.
A 1 st worm 48 is mounted on the output shaft of the 1 st motor 47. The 1 st worm wheel 49 is rotatably attached to the 2 nd housing portion 13 around a rotation shaft 49a, and is engaged with the 1 st worm 48. The rotor 50 is rotatably attached to the 2 nd housing portion 13 around a rotation shaft 50a, and is linked with the 1 st worm wheel 49. The joint 51 is disposed in the 2 nd housing 13 and is linked to the rotor 50. The 1 st switching lever 52 is disposed on the stopper 14 and is connected to the joint 51. The 1 st switching lever 52 is rotatable to an unlock position where the link 31 is movable to engage with the open lever 30 and to a lock position where the link is not engageable.
The emergency shaft 53 is used to mechanically lock the drive main lock mechanism 8 in case of emergency in which 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 it in a clockwise direction. By the rotation of the panic shaft 53, the joint 51 moves upward and rotates the 1 st switching lever 52, and thus the link 31 moves to the lock position.
(auxiliary locking mechanism 9)
The sub-lock mechanism 9 is a mechanism for switching the engagement of the striker 15 by the latch mechanism 6 to an unlocked state that can be released by the operation of the inner handle 3 (inner lever 33) and a locked state that cannot be released. The secondary locking mechanism 9 may be used as a child safety locking mechanism for a young child when riding a 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 housing portion 13. A 2 nd worm 56 is mounted on the output shaft of the 2 nd motor 55.
The 2 nd worm wheel 57 has a cylindrical portion 59 rotatably supported by a rotation 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 protrudes from the cylindrical portion 59 in a sector shape, and the 2 nd worm 56 is engaged with the outer periphery thereof. The 2 nd gear portion 61 protrudes from the cylindrical portion 59 in a semicircular shape, and the gear portion 74 of the 1 st rotating lever 64 is engaged with the outer periphery thereof. The 2 nd gear portion 61 and the abutment portion 62 are disposed on the same circumference, and are offset from the 1 st gear portion 60 in the axial direction. A micro switch 63 as a child safety lock state detection unit is provided near the 2 nd worm wheel 57. By rotating the 2 nd worm wheel 57 counterclockwise about the rotation shaft 57a, the micro switch 63 is pressed by the contact portion 62 to be in the on state.
The 2 nd switching lever 58 includes a 1 st rotating lever 64 and a 2 nd rotating lever 65 arranged to overlap in the Y direction.
The 1 st rotation lever 64 has a substantially circular shape, and a cylindrical portion 66 at the center thereof is rotatably supported by a rotation shaft 64a protruding from the housing 5. A 1 st notch 69 having a 1 st edge 67 and a 2 nd edge 68 facing each other in the circumferential direction is provided on the outer peripheral portion of the 1 st rotary lever 64, and recesses 70 are formed in the circumferential direction from the 1 st notch 69. The 1 st contact portion 71 and the 2 nd contact portion 72 protrude upward from the corners 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. Thus, the 1 st rotation lever 64 rotates between the 1 st operation position (fig. 7) in which the 1 st contact portion 71 contacts the stopper 73 and the 2 nd operation position (fig. 8) in which the 2 nd contact portion 72 contacts the stopper 73. A part of the outer peripheral portion of the 1 st rotation lever 64 is constituted by a sector gear portion 74. The 2 nd gear portion 61 of the 2 nd worm wheel 57 is engaged with the gear portion 74.
The 2 nd rotary 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 in the center of the circular portion 75 and rotatably supported by the cylindrical portion 38 of the 1 st rotary lever 64. A 2 nd notch 78 is formed in the outer peripheral portion of the circular portion 75. At the corner formed by the 2 nd notch portion 78, the 1 st abutment portion 79 and the 2 nd abutment portion 80 protrude downward. The stopper 73 is located at 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 rotating lever 65. The 1 st edge 67 of the 1 st rotating lever 64 is in contact with the 1 st contact portion 79, and the 2 nd edge 68 is in contact with the 2 nd contact portion 80. Thus, the 1 st rotation lever 64 rotates in the forward and reverse directions, and the 2 nd rotation lever 65 also rotates in the forward and reverse directions. The arm 76 has a long hole 81 formed therein, and the slider 82 is slidably disposed in the long hole 81. By the rotation of the 2 nd rotation lever 65, the slider 82 moves in the guide groove 46 of the 2 nd operation lever 37 to a linked position (fig. 7) where the 2 nd operation lever 37 is rotatable by the rotation operation of the 2 nd connection lever 36 and a non-connected position (fig. 8) where the 2 nd operation lever 37 cannot be rotated.
(closure 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 in a counterclockwise direction about a rotation shaft 83a in the drawing by a spring not shown. Then, when the 3 rd motor 91 (refer to fig. 9) is driven by an operation signal from the ECU11, the closing lever 83 is rotated 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-latch position to the latch 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 changeover switch 92, and the like. The closing switch 87 is a rocker switch used by the user to switch whether the closing mechanism 10 needs to be operated. The child safety lock switch 90 is a rocker switch for switching the state of the secondary lock mechanism 9 by the user. The mode changeover switch 92 is a switch for switching a child safety lock priority mode and a normal mode, which will be described later, by the user.
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, and performs opening and closing control of the door 1 in a manner described later.
That is, in the ECU11, if an opening signal is input from the closing switch 87, the closing function is opened so that the closing mechanism 10 of the door latch devices of all the doors can be operated. Then, in each door latch device, if an opening 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 closing signal is input from the closing switch 87, the closing function is closed, so that the closing mechanism 10 of the latch devices of all the vehicle doors cannot be driven. Next, even in each door latch device, the 3 rd motor 91 is not driven and the closing mechanism 10 is not operated by the input of the opening signal from the half latch position detection switch 26.
In addition, if an unlock signal is input from the child safety lock switch 90, the ECU11 opens the child safety lock function, and drives the 2 nd motor 55 of the door latch device 4 of the rear seat door 1 to bring the sub-lock mechanism 9 into a 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 rear seat door 1 is driven to bring the sub-lock mechanism 9 into an unlocked state.
(action)
The opening and closing control of the vehicle door 1 by the ECU11 will be described below. 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 outside handle 2 but not to open the door 1 by the inside handle 3 will be described herein.
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 opening signal is input from the latch position detection switch 27, it is judged that the fork 20 has rotated from the half latch position to the latch position, and the driving of the 3 rd motor 91 is stopped (step S4). Thereby, the door 1 will automatically change from the half-open state to the closed state.
As shown in fig. 11, in the child safety lock process, whether or not an unlock signal is input from the child safety lock switch 90 is determined (step S11). If the unlock signal is input from the child safety lock switch 90, a drive signal is output to the 2 nd motor 55 and is driven to rotate in the forward direction (step S12). By driving the 2 nd motor 55, the 2 nd worm wheel 57 is rotated counterclockwise in fig. 7 about the rotation shaft 57a via the 2 nd worm 56. Further, by the rotation of the 2 nd worm wheel 57, the 1 st rotation lever 64 rotates clockwise around the rotation shaft 64a. By the rotation of the 1 st rotation lever 64, the 2 nd rotation lever 65 also rotates clockwise around the rotation shaft 64a. Thereby, the slider 82 moves in the guide groove 46 of the 2 nd working rod 37 to the non-coupling position where the slider cannot be rotated by the 2 nd coupling rod 36. Then, it is determined whether or not the micro switch 63 is turned on by the abutting portion 62 (step S13). If the jog switch 63 is turned on, it is judged that the child safety lock state is changed and the 2 nd motor 55 is stopped, and this information is displayed on an in-vehicle dashboard or the like (step S14). The user can confirm whether the door 1 is changed to the child safety lock state through the display.
In this case, if the child safety lock priority mode is in, the closing mechanism 10 is not driven even if the door 1 is in the half-open state. That is, even if the opening signal is input from the half-latch position detection switch, the driving 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 a finger into a gap between the door 1 and the vehicle body in the half-open state, the erroneous pinching can be avoided in advance. When the door 1 is closed, the user may confirm that the finger or the like is not sandwiched between the door 1 and the vehicle body, and then manually close the door 1.
If the door 1 has been closed, the door 1 cannot be opened even if the inside handle 3 is operated because it is in the child safety lock state. That is, in the child safety lock state, the 2 nd link lever 36 can be rotated by operating the inner handle 3, but the slider 82 moves to the non-linked position where it cannot be pressed by the 2 nd link lever 36. Therefore, the link 31 cannot be operated by rotating the 2 nd operating lever 37, and thus the opening latch 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 door 1 in the closed state in the child safety lock state, if the outer handle 2 is operated, in the main lock mechanism 8, as in the case of opening the door 1 in the unlocked state, the outer lever 32 is rotated, and the opening lever 30 is rotated via the link 31, so that the engagement state of the fork 20 by the click lever 21 is released, and the door 1 is opened.
It should be noted that either one of the child safety lock priority mode and the normal mode may also be selected by operating the mode changeover switch 92. Alternatively, the switch 87 and the child safety lock switch 90 may be closed as a momentary (momentary) switch instead of the mode changeover switch 92, and the child safety lock priority mode and the normal mode may be changed by pressing the respective switches 87 and 90 for a predetermined time or longer. In this case, a mode display unit for displaying the currently selected mode may be provided in an instrument panel or the like in the vehicle.
In the child safety lock priority mode, as shown in table 1, when the closing switch 87 is in the on state, the closing mechanism 10 of the door latch device of the door of the driver's 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 door of the rear seat is operable is switched according to 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 (off) state, the close switch 87 can be driven. On the other hand, even if the closing switch 87 is in the on state, if the sub-lock mechanism 9 (child safety lock mechanism) is in the locked (open) state, the closing mechanism 10 cannot be driven. Once 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: workable x: failure to work
On the other hand, in the normal mode, as shown in table 2, when the closing switch 87 is in the on state, the closing mechanisms 10 of the door latch devices 4 of all doors can be driven regardless of the state of the sub-lock mechanism 9. Once the closing mechanism 10 is drivable, if it is determined that the door 1 is in the half-open state, the closing mechanism 10 is automatically driven to be brought into the closed state.
TABLE 2
O: workable x: failure to work
The structures of the present invention are not limited to those described in the above embodiments, and various modifications may be made.
In the above-described embodiment, the description has been given of the ordinary door of the door type, but the door lock system may be employed in other types of doors 1 such as a slide type door and an electric type door.
When the door lock system is employed in a sliding door, the door 1 may be configured to be automatically openable and closable. In this case, if the child safety lock switch 90 is operated, the door 1 does not become closed but temporarily stops in the half-open state as in the above-described case. Thus, the pinching of a finger or the like between the door 1 and the vehicle body can be effectively prevented.
In the above embodiment, the fork 20 is indirectly rotated by the closing mechanism 10, but the rotation shaft of the fork 20 may be directly driven to rotate in the forward and reverse directions by a motor via a gear.
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 set to be manually operated. In this case, an operation handle may be provided at the open end of the door 1 (a portion hidden in the closed state of the door 1), and the slider 82 may be moved to the uncoupled position directly or indirectly by operation of the operation handle. Whether or not the operation handle is operated may be detected by a switch, a sensor, or the like that detects the operation position of the operation handle.
In the above embodiment, the child lock state detection unit is constituted by the micro switch 63 for detecting the state of the sub lock mechanism 9, but may be constituted by the child lock switch 90 operated by the user. In this case, the following structure is sufficient: in the ECU11, in the child safety lock priority mode, the closing mechanism 10 is not driven by inputting an opening signal from the child safety lock switch 90, and is driven by inputting a closing signal.
Symbol description
1a door, 2 an outer handle, 3 an inner handle, 4a door latch device, 5 a housing, 6 a latch mechanism, 7 an opening mechanism, 8 a primary latch mechanism, 9a secondary latch mechanism, 10 a closing mechanism, 11 an ECU,12 a 1 st receiving portion, 13 a 2 nd receiving portion, 14 a stopper, 15 a striker, 16 a link, 17 a cover, 18 a 19 a cover, 20a fork, 21a click lever, 22 a 1 st arm, 23 a 2 nd arm, 24 a 1 st lock support portion, 25 a 2 nd lock support portion, 26 a half latch position detection switch, 27 a latch position detection switch, 28 a push support portion, 29 a lock portion, 30 an opening lever, 31 a link, 32 an outer lever, 33 an inner lever, 34 a 1 st link, 35 a 1 st link, 37 a 2 nd link, 38 a barrel portion, 39 st protrusion, 40 nd protrusion, 41 pressing edge, 42 connection, 43 bearing, 44 guide, 45 pressing, 46 guide groove, 47 st motor, 48 st worm, 49 st worm wheel, 50 rotor, 51 joint, 52 st switching lever, 53 emergency shaft, 54 insertion hole, 55 nd motor, 56 nd worm, 57 nd worm wheel, 58 nd switching lever, 59 cylinder, 60 st gear, 61 nd gear, 62 abutment, 63 micro switch, 64 st rotation lever, 65 nd rotation lever, 66 cylinder, 67 st edge, 68 nd edge, 69 st slot, 70 recess, 71 st abutment, 72 nd abutment, 73 stopper, 74 gear, 75 circular portion, 76 arm, 77 … bearing portion, 78 … slot portion 2, 79 … abutment portion 1, 80 … abutment portion 2, 81 … slot, 82 … slider, 83 … closing lever, 84 … pressing portion, 85 … key, 86 … open switch, 87 … closed switch, 88 … lock switch, 89 … unlock switch, 90 … child safety lock switch, 91 … 3 rd motor, 92 … mode switch.
Claims (4)
1. A door lock system, wherein:
the door lock system comprises a door latch device, a child safety lock state detection unit, and a control unit,
the door latch device has:
a latch mechanism including a fork rotatable to a latch position where the fork is engaged with a striker on a vehicle body side, an open position where the engagement with the striker is released, and a half-latch position between the latch position and the open position, and a claw lever that is engaged with the fork and is positioned at the latch position;
a closing mechanism that drives rotation of the fork in the semi-latched position to the latched position; the method comprises the steps of,
a child safety lock mechanism that switches a locked state of the striker by the latch mechanism to an unlocked state that can be released by an operation of an inner handle and a locked state that cannot be released,
the child safety lock state detecting section 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 is not driven, based on the detection of the lock state by the child safety lock state detection unit.
2. The door lock system according to claim 1, wherein,
the control section is capable of switching the child safety lock priority mode to a normal mode in which the closing mechanism is made drivable.
3. The door lock system according to claim 2, wherein,
the door lock system includes a mode switch capable of switching between the normal mode and the child safety lock priority mode.
4. The door lock system according to claim 1 to 3, wherein,
the door lock system includes an automatic opening/closing device for automatically opening/closing a door with respect to a 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 CN112746781A (en) | 2021-05-04 |
| CN112746781B true CN112746781B (en) | 2023-10-03 |
Family
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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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116122676A (en) * | 2023-02-13 | 2023-05-16 | 浙江天岳汽车电器有限公司 | Child lock for automobile door |
| DE102023105269A1 (en) | 2023-03-03 | 2024-09-05 | Kiekert Aktiengesellschaft | Motor vehicle lock |
Citations (3)
| 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 |
| CN107700974A (en) * | 2017-11-10 | 2018-02-16 | 姚明成 | A kind of hardware and software platform is from adhesive back door lock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082175A1 (en) * | 2012-11-27 | 2014-06-05 | Magna Closures Inc. | Closure latch for vehicle door |
| US11085204B2 (en) * | 2015-11-26 | 2021-08-10 | 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 (3)
| 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 |
| 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 |
|---|---|
| JP2021070946A (en) | 2021-05-06 |
| JP7300368B2 (en) | 2023-06-29 |
| DE102020128302A1 (en) | 2021-05-06 |
| CN112746781A (en) | 2021-05-04 |
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