JPH06185251A - Shutting device of door lock for car - Google Patents

Abstract

PURPOSE:To enhance a sense of quality and prevent a wasteful power comsumption by preventing a closure from operating in the case a door is suddenly shut. CONSTITUTION:In the case a door in an open position is shut, when the door passes through a half-latch zone in one motion and is moved to a full-latch position, the full-latch position is detected by a first detection switch 9, and a first timer 40c is operated for time set in advance. The nearby full-latch position is detected by a second detection switch 16 within the time, and after that, in the case there is no variation in a detection state of the second detection switch 16, it is decided that the door is suddenly shut, and it is so controlled that a closure may not operate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in order to reduce the closing force of a door in an automobile, forcibly moves the door lock to a full-latch position by driving means when the door lock is in a half-latch position. To a closed door lock for an automobile.

[0002]

2. Description of the Related Art In a conventional door lock closing device, when a door is closed from an open position, the door lock is barely engaged with a half latch position (a latch provided on the door lock is engaged with a striker fixed to the vehicle body side). State), the half-latch detection switch detects the half-latch position of the door lock and activates the closure motor linked to the door lock latch, forcing the door lock against the seal reaction force. It is designed to be closed from the half-latch position to the full-latch position. (For example, Japanese Patent Laid-Open No. 3-1616
(See Publication No. 73)

[0003]

However, in the conventional device as described above, even when the door is temporarily stopped at the half-latch position when the door is closed from the open position,
Even when the door moves from the open position to the full-latch position even if the door is moved to the full-latch position and closed at once without stopping at the half-latch position,
Since the door passes through the half-latch position, the half-latch detection switch detects the half-latch position, so even if the door is suddenly closed without stopping at the half-latch position, the closure will operate and the door will close. There is a problem in that an operating noise is generated later, which impairs a sense of quality and consumes unnecessary power. In view of the above-mentioned problems of the conventional technology, the present invention improves the quality and prevents unnecessary power consumption by not operating the closure when the door is suddenly closed. An object of the present invention is to provide a closing device for an automobile door lock.

[0004]

In order to achieve the above object, in the device of the present invention, a latch pivotally attached to a door lock provided on either the vehicle body side or the door side is provided on the other side. While swinging between an open position where the striker is disengaged, a half-latch area that barely engages the striker, and a full-latch position that fully engages the striker and can lock the door in the closed position, the latch is driven. In the closing device for the vehicle door lock, which is connected to the driving means to forcibly move the latch from the half-latch region to the full-latch position, it is detected that the latch enters the half-latch region from the open position side. The first detection switch, the first timer that counts a preset time after detecting the half-latch area of the first detection switch, and the latch The second detection switch that detects the near open position at a position closer to the open position and the near full latch position at a position closer to the full latch position in the half-latch area, and the first detection switch within the set time of the first timer. The second detection switch is provided with a control circuit which detects the near full latch position and disables the operation of the drive means when the detection state does not change.

[0005]

[Function] When the door passes the half-latch area and moves to the full-latch position when the door is closed from the open position, the first detection switch detects the full-latch position and the first timer operates for a preset time. If the second detection switch detects the full-latch position within that time and then the detection state of the second detection switch does not change, it is determined that the second detection switch has been closed abruptly, and the closure is controlled not to operate.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. (A) shown in FIG. 11 is a door whose front end is pivotally attached to a vehicle body by a door hinge (not shown) so that it can be opened and closed. (1) is fixed to the rear end of the door (A) and fixed to the vehicle body. Door lock, which can be engaged with and disengaged from striker (20), (10)
Is an actuator serving as a releasing means for releasing the engagement between the door lock (1) and the striker (20) by a drive source such as a motor, and (30) is a driving means connected to the door lock (1). In order to reduce the closing force of the door (A) with the closure, it is driven when the door (A) moves to the half-latch area described later, and the door (A) is forced to the full latch position against the seal reaction force. It can be moved.

Box-shaped body (1a) of the door lock (1)
As shown in FIG. 5, a striker (20) fixed to the vehicle body, a latch (2) that can be disengaged, and a locking plate (3) that can be disengaged from the latch (2) are provided inside the door
The striker (20) relatively enters into the engagement groove (2a) of the latch (2) into the body (1a) when the door (A) is closed.
The door (A) is held in the closed state by engaging with the striker (20) from the engaging groove (2a) of the latch (2).
The door (A) can be opened by detaching the door.

The latch (2) is pivotally attached to the body body (1a) by a latch shaft (4), and the engagement groove (2a) is provided in the striker (2).
(6) and the open position shown in FIG. 6 waiting for the relative entry of the striker (20), the striker (20) barely engages with the engaging groove (2a), and the locking plate (3 ) Claw part (3a) is a half-latch engagement part of the latch (2)
7 is engaged with (2b), the striker (20) is completely engaged with the engaging groove (2a), and the locking plate (3) is fully latched (2c). ) To prevent rotation toward the open position,
It is possible to rotate (A) to the full-latch position shown in FIGS. 5 and 8 for holding the door closed and the overstroke position slightly beyond the full-latch position. Since the latch (2) moves in synchronization with the door (A) from the open position through the half-latch position to the full-latch position, the door (A) corresponding to each position of the latch (2) is moved. Open each position like the latch (2),
Called the half-latch position and the full-latch position.

Further, first and second closing levers (5) and (6) are pivotally mounted on the coaxial body (5a) so as to be independently rotatable inside the body body (1a). The closing lever (5) is connected to the latch (2) via the link (8).
The abutment portion (6a) of the second closing lever (6) is connected to (2d), and the abutment portion (6a) of the third closing lever (6) is pivotally attached to the side surface of the body body (1a) by a shaft (7a) as shown in FIG. The push lever (7b) formed at one end of the close lever (7) extends so as to come into contact with it. The third closing lever (7) is connected to an output member (30b) of a closure (30) which is reciprocally driven by a motor through a connecting portion (7c) formed at the other end through a wire (30a), and outputs the output. The member (30b) is pulled by the movement of the member (30b) and can reciprocate between the inoperative position shown in FIG. 4 and the operating position rotated in the arrow direction.

Reference numeral (9) is a half-latch detection switch which is a first detection switch fixed to the body body (1a). The half-latch detection switch is brought into contact with the cam portion (5b) of the first close lever (5) to latch the latch (2). ) Is in the open area described later, it is turned off, and when the latch (2) is in the half-latch area and the full-latch position described later, it is turned on and when the door lock (1) is changed from the open position to the half-latch position Detect that,
Output drive control command to the closure (30). The open area means between the open position and the half latch position, and the half latch area means between the half latch position and the full latch position. The full-latch area described below is a range including the full-latch position where the door (A) is in the closed state and the overstroke position.

When the third closing lever (7) moves from the non-actuated position to the actuated position by driving the closure (30) when the latch (2) is in the half-latch position, the pushing portion is moved.
(7b) pushes the contact portion (6a) of the second close lever (6) to rotate the second close lever (6) clockwise in FIG. 8, and to rotate the second close lever (6). Due to
The pressing portion (6b) of the second close lever (6) contacts the contact portion (5b) of the first close lever (5), and the first close lever (5) is rotated clockwise. Thereby, the latch (2) is forcibly rotated from the half-latch position to the full-latch position via the link (8).

As shown in FIG. 12, the actuator (10) is fixed to the body (1a) and has a release lever (10a) which can be released by the rotation of the motor (10b). 10a) pushes the locking plate (3) in the releasing direction to release the claw portion (3a) of the locking plate (3) from the engagement of the latch (2), and the latch (2)
The door (A) can be opened by disengaging the striker (20) with the door.

Reference numeral (11) shown in FIGS. 9 and 10 is an outside handle provided on the outer panel (A1) of the door (A) and serving as a door opening operation means outside the vehicle.
It is pivotally attached to a) by a predetermined amount, and its end (11b) is
An outside switch (door open switch) (1) that detects that the outside handle (11) has been rotated in the direction of the arrow.
It is connected to the detection lever (12a) of 2). As shown in Fig. 11 (1
3) is an inside handle which is a door opening operation means on the inside of the vehicle, which is arranged on the panel (A2) on the inside of the door (A).
The panel (A2) is rotatably pivoted by a predetermined amount, and its end is connected to an inside switch (door opening switch) (14) shown in FIG. 1 for detecting the operation of the inside handle (13). .

Reference numeral (15) is a locking / unlocking switch (locking / unlocking operation means) provided inside the door (A), which can be locked and unlocked by touch operation. When the lock switch (15a) of the operation switch (15) is turned on, the lock signal indicates that the main control unit (CPU) (4) shown in FIG.
(0) is input to the input port, and when the unlock switch (15b) is turned on by the unlock operation, the unlock signal is sent to the main control unit.
A diode which is inputted to the input port of (40) and emits an identification color corresponding to each operation is incorporated.

When the lock switch (15a) of the lock / unlock operation switch (15) is turned on, the main control unit (40) of the control circuit (B) installed in each door (A) stores and locks the operation. The state is memorized and the unlock switch (1
When 5b) is turned on, it has a locking / unlocking memory circuit (41) which resets the locked state and stores the unlocked state. When the unlocking storage circuit (41) stores the unlocked state, the outside handle (11) or the inside handle (13) is operated and the outside switch (12) or the inside switch (14) is turned on. When turned on, a high-level output signal is output from the output port (40b) of the main control unit (40), turning on the load control unit (18) and turning on the actuator.
Power is supplied to the motor (10b) of (10) to unlock the locking plate (3) of the door lock (1) to control the opening operation of the door (A) and store the locked state. The outside handle (11) or inside handle (13) is operated, the outside switch (1
Even if 2) or the inside switch (14) is turned on, power supply to the motor (10b) of the actuator (10) is disabled, and the door opening operation of the door (A) is disabled.

Reference numeral (16) shown in FIG. 1 is a door switch which constitutes a second detection switch provided on the vehicle body side facing the free end portion of the door (A) and is turned on when the door (A) is in the open region. Also, it turns off when it is in the full latch area,
It is set to turn on at the near open position near the open position and to turn off at the near full latch position near the full latch position, with the middle of the half latch region as the boundary.

(17) is an output member (30) of the closure (30).
In the neutral detection switch for detecting the neutral position of a), the output member (30a) moves from the inoperative position to the operating position by the rotation of the motor, and after moving the latch (2) to the full latch position, the motor (30c ) Reverse rotation to return to the neutral position, the position is detected and the motor
Output the signal to stop the rotation of (30c). (18) is a load control unit composed of a relay and the like, and the main control unit (4
The output signal is output from the output port (40b) of (0) to turn on, and the motor of the actuator (10) or the motor of the closure (30) is turned on according to the output signal.
Power supply (20) can be supplied to (30c) and the actuator
The release lever (2a) of (2) is moved to the release position, or the output member (30a) of the closure (30) is moved to the operating position. Reference numeral (20a) is a voltage conversion unit that supplies the main control unit (40) with power of a predetermined voltage.

The main control section (40) includes a lock / unlock storage circuit (41).
In addition to the discrimination circuit (40a), the first timer (40c),
It has a second timer (40d). First timer (40c)
Measures the preset time (T1) from the time when the half-latch detection switch (9) detects the half-latch position of the latch (2) and turns it on, and the second timer (40d) controls the door switch (16d). ) Measures the preset time (T2) from the time when the switch turns off.

The half latch detection switch (9), door switch (16), first timer (40c) and second timer (40)
The d) and the closure (30) have a relationship as shown in the time chart shown in FIG. A. At time (TA), if the door (A) is in the half-latch area and stops at the near open position when the door (A) is closed from the open position, the half-latch detection switch (9) It switches from off to on and the door switch (16) remains on. In this case, when the preset time (T1) of the first timer (40c) is up, the determination circuit (40a) determines that the operation of the closure (30) is controlled.

B. At the time (TB), when the door (A) is closed from the open position to the near full latch position side in the half latch area when the door (A) is closed, the half latch detection switch (9) Switches from off to on and the door switch (16) switches from on to off.
In this case, before the time (T2) of the second timer (40d) is up, the latch (2) is pushed back to the near open position side of the half latch area by the seal reaction force, and the door switch (16) is opened. When it changes from off to on, the discrimination circuit
Determined by (40a), it controls the operation of the closure (30).

C. At the time (TC), if the door (A) passes through the half-latch area all at once when the door (A) is closed from the open position and reaches the full-latch position, the half-latch detection switch is 9) is switched from off to on, and the door switch (16) is switched from on to off. Then, when the time (T2) of the second timer (T2) is up, it is determined by the determination circuit (40a) that the second timer (T2) is abruptly closed, and the closure (30) is controlled not to operate.

Next, the operation of the embodiment will be described with reference to the flow chart shown in FIG. When the door (A) is closed from the open position in step S1, the striker (2
0) engages with the engaging groove (2a) of the latch (2), and the latch (2)
Rotates in the direction from the open position to the full-latch position. At that time, the locking plate (3) is latched (2).
When the door (A) is stopped at the half-latch position by engaging with the half-latch engagement portion (2b) of the above, the half-latch detection switch (9) is switched from off to on in step S2, and the first timer is operated in step S3. (40c) starts operating for a preset time (T1). Then, in step S4, the first timer (40
During the operation of c), it is checked whether the door switch (16) is switched from on to off, and if the latch (2) is in the near open position side of the half-latch area and remains on,
When the first timer (40c) times out (step S
In 5), control the operation of the closure (30) (step S6),
The latch (2) is rotated from the half-latch position to the full-latch area, and the door (A) is closed. Then, when the latch (2) moves to the overstroke position slightly beyond the full latch position, the half latch detection switch (9) is switched off, whereby the closure (30) reversely rotates and returns to the neutral position.

In step S4, the door (A) stops in the half-latch area, and the latch (2) temporarily moves to the near full-latch position side of the half-latch area while the first timer (40c) is operating. When the door switch (16) is switched from on to off, the second timer (40d) measures the preset time (T2) from the time when the door switch (16) is turned off in step S7. Next, while the second timer (40d) is operating, when the door (A) is pushed back from the near full-latch position side of the half-latch area to the near-half latch position side by the seal reaction force, etc., the door switch (16 ) Changes from off to on, at which point the process proceeds to the next step S6 to control the operation of the closure (30) to close the door (A) from the half latch position to the full latch region. Then, after the operation is completed, the closure (30) returns to the neutral position and stops.

When the door (A) is closed, the locking plate (3) engages with the full-latch engaging portion (2c) of the latch (2) without stopping in the half-latch area, moving to the full-latch position at once. If the door (A) is held in the fully latched position by the second timer (40d) in step S8
Since the door switch (16) remains off during the operation of, the discriminating circuit (40a) determines that the door (A) is suddenly closed when the second timer (40d) in step S9 is up ( In step S10), the operation of the closure (30) is disabled (step S11). Therefore, when the door is closed suddenly, the closure (30) does not operate.

[0025]

As described above, according to the present invention, the operation of the driving means is invalidated when the second detection switch detects the near full latch position within the set time of the first timer and the detection state does not change thereafter. As a result, when the door is closed, the drive means does not operate when the door is suddenly closed without stopping at the half-latch position, so the operating noise after the door is closed can be eliminated and the power consumption is minimized. You can keep it to the limit.

[Brief description of drawings]

FIG. 1 is a control circuit diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing an operating state.

FIG. 3 is a time chart showing the timing of the embodiment.

FIG. 4 is a side view showing a door lock body and a closure.

FIG. 5 is a front view of the door lock in a fully latched state.

FIG. 6 is an operation explanatory view of a main part of the door lock in the open position.

FIG. 7 is an operation explanatory view of the main part of the door lock in the half-latch position.

FIG. 8 is an operation explanatory view of a main part of the door lock in a full latch position.

FIG. 9 is a schematic side view of the door as viewed from the outside of the vehicle.

10 is a sectional view taken along line CC in FIG. 9.

FIG. 11 is a schematic side view of the door as viewed from the inside of the vehicle.

FIG. 12 is a schematic view of a door lock.

[Explanation of symbols]

(1) Door lock (2) Latch (3) Locking plate (5) First close lever (6) Second close lever (7) Third close lever (8) Link (9) Half latch detection switch (first detection Switch) (10) Actuator (Release Means) (16) Door Switch (Second Detection Switch) (15) Lock / Unlock Operation Switch (20) Striker (30) Closure (Drive) (40) Main Control (40a) Discrimination Circuit (40c)
1st timer (40d) 2nd timer (41) Lock / Unlock memory circuit (A) Door (B) Control circuit

Front Page Continuation (72) Inventor Fumio Kobayashi 1-14-7 Maruyama Isogo-ku, Yokohama-shi Oi Manufacturing Co., Ltd.

Claims (1)

[Claims] 1. A half-latch area in which a latch pivotally attached to a door lock provided on either the vehicle body side or the door side is in an open position separated from a striker provided on the other side, and barely engages with the striker. And a full latch position where the door can be fully engaged with the striker and restrain the door at the closed position, and the latch is linked to the drive means, and the drive means moves the latch from the half latch region to the full latch position. In a vehicle door lock closing device that is forcibly moved, a first detection switch that detects that the latch has entered the half-latch region from the open position side, and after detecting the half-latch region of the first detection switch, The first timer that measures the preset time and the near-auto position at the position closer to the open position within the half-latch area of the latch A second full-latch position is detected at the position close to the full-latch position side, and the punch position is detected.
The detection switch and the second detection switch detect the near full latch position within the set time of the first timer, and thereafter,
A door lock closing device for an automobile, comprising: a control circuit for disabling operation of a driving means when a detection state does not change.