JP2544140Y2 - Automotive door lock closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, in order to reduce the closing force of a door in a vehicle, when the door lock reaches a half latch area, the door lock is forcibly moved to a full latch position by a closure. The present invention relates to an automobile door lock closing device.

[0002]

2. Description of the Related Art In a conventional door lock closing device, when a door is closed from an open area, a door lock body barely engages with a striker in which a latch provided on the door lock is fixed to a vehicle body side. State), the half-latch detection switch detects the half-latch area of the door lock, activates the motor of the closure linked to the latch of the door lock body, and forces the door lock body against the sealing reaction force. The shutter is closed from the half-latch area to the full-latch position (see, for example, Japanese Patent Application Laid-Open No. H3-161673).

[0003]

However, in the conventional device as described above, when the door reaches the half-latch area from the open area when the door is closed from the open area, the door temporarily stops at the half-latch area. Not only when the door is closed, but also when the door is moved to the full latch position without closing to the half-latch area and the door is closed, the closure is always activated. Power consumption. In view of the above-mentioned problems of the conventional technology, the present invention improves the quality and waste by preventing the closure from operating when the door is suddenly closed to the full latch position. It is an object of the present invention to provide a closing device for a door lock for an automobile, which prevents a large power consumption.

[0004]

In order to achieve the above object, an apparatus according to the present invention comprises a latch which is pivotally attached to a door lock body provided on one of a vehicle body side and a door side and provided on the other. By moving from the open area where the striker has been disengaged to the half-latch area barely engaged with the striker, the latch linked to the latch completely engages the latch from the half-latch area with the striker and closes the door In a vehicle door lock closing device forcibly moving to a full latch position which can be restrained in a position, a half which is activated when the latch is in a half latch region and which is deactivated when the latch reaches the full latch position. A latch detection switch and a timer that measures a preset time from the start of operation of the half latch detection switch A control circuit for comparing the operation time of the half-latch detection switch with the set time of the timer, and disabling the closure when it is determined that the operation time of the half-latch detection switch is shorter than the set time of the timer. And a device.

[0005]

When the door is closed until the latch reaches the half-latch area, the half-latch detection switch is activated, and the controller compares the operation time of the half-latch detection switch with the set time of the timer, and sets the operation time to the set time. If it is longer, it is determined that the latch has temporarily stopped in the half-latch area, the closure is actuated, and the latch is forcibly rotated from the half-latch area toward the full-latch position. If the latch moves from the open area to the full latch position at a stretch and the operation time of the half-latch detection switch is shorter than the set time of the timer, the control unit disables the closure, and the closure is operated after the door is closed. The inconvenience is resolved.

[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. 5 is a door lock body fixed to an automobile door, and (B) shown in FIG. 6 is a closure connected to the door lock body (A). In order to reduce the closing force, when the door reaches a half-latch area to be described later, the closure (B) is operated, so that the door can be forcibly moved to the full latch position against the sealing reaction force. I have.

[0007] Inside the body (1) of the door lock body (A), a latch (3) detachable from the striker (2) fixed to the vehicle body side and a locking plate detachable from the latch (3). When the door (4) is pivotally connected and the striker (2) relatively entering the engagement groove (3a) of the latch (3) is engaged during the door closing operation, the door is held in the closed state. At the same time, the striker (2) is detached from the engagement groove (3a) of the latch (3), so that the door can be opened.

The latch (3) is connected to the body (1) by a latch shaft (5).
The engagement groove (3a) is pivotally mounted with the engagement groove (3a). The engagement groove (3a) faces the approach direction of the striker (2) and waits for the relative entry of the striker (2). The striker (2) barely engages and the locking plate
The claw portion (4a) of (4) is engaged with the half latch engagement portion (3) of the latch (3).
The half latch position shown in FIG. 3 which engages with the b), the striker (2) is completely engaged to the inner part of the engagement groove (3a), and the claw (4a) of the locking plate (4) is fully latched. Engagement part
(3c) to prevent rotation toward the open position,
The door can be pivoted to a full latch position shown in FIG. 4 which holds the door closed. The open area is defined by the claw (4a) of the locking plate (4) from the position shown in FIG.
Means a region until the latch engages with the half-latch engagement portion (3b) of the latch (3).
The area from the position shown in FIG. 3 to the time when the claw portion (4a) of the locking plate (4) engages with the full latch engagement portion (3c) of the latch (3). Further, since the latch (3) moves in synchronization with the door from the open area to the full latch position via the half latch area, the position of the door corresponding to each area and position of the latch (3) is Like the latch (3), they are called an open area, a half latch area, and a full latch position, respectively.

The body (1) has first and second closing levers (6) and (7) pivotally and independently rotatably and coaxially (8). 6)
Is connected to a connecting portion (3d) of the latch (3) via a link (9), and a contact portion (7) of the second closing lever (7).
FIG. 5 (a) shows a third closing lever (11) pivotally attached to the side surface of the body (1) with a shaft (10) as shown in FIG. Is extended. The third closing lever (11) has a connecting portion (11b) formed at the other end connected to the closure (B) through the wire (12), and is driven by the closure (B) to be inactive as shown in FIG. It is possible to reciprocate between the position and the operating position rotated in the direction indicated by the arrow.

When the latch (3) is in the half-latch area, the third closing lever is actuated by the operation of the closure (B).
(11) moves from the non-operation position to the operation position,
The pushing portion (11a) of the third closing lever (11) pushes the contact portion (7a) of the second closing lever (7), and rotates the second closing lever (7) clockwise in FIG. The rotation of the second closing lever (7) causes the second closing lever (7) to rotate.
The pushing part (7b) of (7) is the contact part of the first closing lever (6).
(6b), the first close lever (6) is rotated clockwise to forcibly rotate the latch (3) from the half latch area to the full latch position via the link (9). It has become.

(18) A half latch detection switch fixed to the body (1), which comes into contact with the cam portion (6a) of the first closing lever (6) which rotates in conjunction with the latch (3). Thus, as shown in the time chart of FIG. 7, the switch is set to be turned on only when in the half-latch area, and outputs an operation signal when in the on-state.

A closure (B) is provided in a housing (13) with a motor (14) rotatable in forward and reverse directions, and capable of rotating forward and reverse by reducing the rotation of the motor (14). ) Is formed with a drive gear (15), and a male screw portion (16a) that is screwed into a female screw (15a) of the drive gear (15) is formed. Reciprocating in the direction,
A screw member (16) capable of reciprocating between a neutral position shown in FIG. 6 and an operating position moved leftward from the neutral position,
(16) a neutral switch (17) for detecting a neutral position. The other end of the wire (12) is connected to a connecting portion (16a) formed at the tip of the screw member (16), and the wire (1) is moved by moving the screw member (16) from the neutral position to the operating position.
2) is pulled to move the third closing lever (7) from the inoperative position to the operating position.

FIG. 10 is a circuit diagram of an embodiment of the present invention. (19) is a handle switch that is connected in series to the half-latch detection switch (18) and is turned off by operating a door handle (not shown) that performs a door opening operation, and (20) detects an open / closed state of the door. (21) is a forward rotation relay for driving the motor (14) of the closure (B), and (22) is a motor (21) connected in series to the neutral switch (17). 14) A reverse relay for driving, (23) includes a timer (24) for measuring a preset time (dt) from the time when the half latch detection switch (18) is turned on, and a comparison circuit (25) to be described later. Equipped with a half-latch detection switch (18), door switch (20), power supply (26), and each relay (21) (2
2) connected respectively to the closure as follows
(B) is controlled.

The control device (23) detects that the half-latch detection switch (18) has moved from the open region of the latch (3) to the half-latch region, and outputs an activation signal. While the preset time (dt) is measured, the comparison circuit (25) operates the half-latch detection switch.
The operation time (t) in which (18) is on is compared with the set time (dt), and as shown in FIG. 8, the operation time (t) during which the operation signal is output is the set time (dt). When it is determined that the motor is longer, the port (23a) (23b) of the control device (23) is electrically connected to turn on the forward rotation relay (21) to rotate the motor (14) forward,
Subsequently, the latch (3) moves from the half-latch area to the full-latch position, and the half-latch detection switch (18) is switched from on to off, so that the ports (23a) (23c) between the ports of the control device (23) are removed. The rotation of the motor (14) is stopped by turning on the neutral switch (17) by turning on the neutral switch (17) by turning on the reverse switch (22) to turn on the neutral switch (17). Conversely, as shown in FIG. 9, when it is determined that the operation time (t) during which the operation signal is output is shorter than the set time (dt), when the door is closed, the latch (3) is activated. Since it has passed through the half-latch area in a very short time, it is determined that the door is suddenly closed. In this case, the closure (B)
Is controlled so that the motor (14) does not operate.

The door switch (20) resets the control device (23) to return to the initial state when the door is opened and is switched from off to on, and the handle switch (19) is connected to the closure ( By turning off the door handle during the operation of B), the rotation of the motor (14) is stopped and the reverse rotation is controlled, and safety is considered.

Next, the operation of the present invention will be described with reference to the flowchart shown in FIG. When the door is open, the latch (3) is in the open area as shown in FIG. 2, the door switch (20) is on, and the half-latch detection switch (18) is off. In addition, neutral switch (17)
Is off because the screw member (16) of the closure (B) is in the neutral position.

When the door is closed from this state, the latch (3)
When the striker (2) is engaged with the engagement groove (3a) of FIG. 3 and the latch (3) rotates to the half-latch area as shown in FIG. Since the lever (6) comes into contact with the cam portion (6a) to be turned on, the operation signal is turned on (step S1).

Next, proceeding to step S2, the comparison circuit (25) of the control device (23) sets the operation time (t) and the set time (d) of the timer (24).
Compared with the control device (23), if the operation time (t)> the set time (dt) is satisfied, it is determined that the latch (3), that is, the door has temporarily stopped in the half-latch region, and the control device (23) ) Port (2
The connection between 3a and 23b is conducted, and the forward rotation relay (21) is operated. In step S3, the motor (14) of the closure (B) rotates forward.

The forward rotation of the motor (14) causes the screw member (16) to move to the left in FIG. 6, forcing the latch (3) from the half-latch area toward the full-latch position via the cable (12). Rotate it.

When the latch (3) moves to the full latch position, the half-latch detection switch (18) is disengaged from the cam portion (6a) and is switched from on to off.
The operation signal turns off at S4.

Thus, the port (23a) of the control device (23)
(23b) is turned off and the ports (23b) and (23c) are turned on.By the operation of the reverse rotation relay (22), step S5 is performed.
As a result, the motor (14) rotates in the reverse direction, and the screw member (16) moves to the neutral position. Subsequently, in step S6, when the neutral switch (17) detects the neutral position of the screw member (16) and turns off, the motor (14)
The power supply to is stopped.

In step S2, the operation time (t)
When the time is shorter than the set time (dt) of the timer (23), when the door is closed, the latch (3) moves from the open area to the full latch position at once, and the half latch detection switch (18)
Since the operation time (t) is extremely short, it is determined that the vehicle is closed suddenly, and the process does not proceed to step S3. Therefore, in this case, even when the door is closed, the closure (B) does not operate.

[0023]

As described above, according to the present invention, the operation time of the half-latch detection switch detecting the half-latch area is compared with the set time of the timer, and the operation time of the half-latch detection switch is set by the timer. If the time is shorter than the closing time, it is determined that the door has been closed suddenly when the door is closed, and the closure is controlled so as not to be operated. Waste can be prevented.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an operation state of an embodiment of the present invention.

FIG. 2 is an operation explanatory view of a door lock body in an open area.

FIG. 3 is an operation explanatory view of a door lock body in a half latch area.

FIG. 4 is a front view of the door lock body in a full latch position.

FIG. 5 is a longitudinal sectional view of a main part of the door lock main body.

FIG. 6 is a front view in which a part of the closure is sectioned.

FIG. 7 is a time chart of the half latch detection switch.

FIG. 8 is a time chart showing a relationship between a half latch detection switch and a timer.

FIG. 9 is a time chart showing a relationship between a half latch detection switch and a timer when the shutter is suddenly closed.

FIG. 10 is a circuit diagram illustrating an example of a control circuit.

[Explanation of symbols]

(A) Door lock body (B) Closure (2) Strike (3) Latch (4) Locking plate (6) First close lever (6a) Cam part (7) Second close lever (9) Link (11) No. 3 Close lever (14) Motor (17) Neutral switch (18) Half latch detection switch (23) Controller (24) Timer (25) Comparison circuit

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-161673 (JP, A) JP-A-6-185251 (JP, A) JP-A-58-76669 (JP, A) 30673 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] A half-latch in which a latch pivotally attached to a door lock body provided on one of a vehicle body side and a door side barely engages with a striker from an open area detached from a striker provided on the other side. By moving to the area, by the closure linked to the latch,
An automotive door lock closure device for fully engaging a latch from a half-latch area with a striker and forcing a door to move to a full latch position that can be restrained in a closed position, wherein the latch is in the half-latch area. A half-latch detection switch that activates when the latch reaches the full-latch position and becomes inactive when the latch reaches the full-latch position; A comparison circuit for comparing with the set time of
A closing device for a vehicle door lock, comprising: a control device for disabling a closure when it is determined that an operation time of a half latch detection switch is shorter than a set time of a timer.