JP2528943Y2 - Automatic door closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention has an electric drive means when a door of a vehicle or the like is closed to a half-latch position where a latch in the door lock and a striker on the vehicle body barely engage. The present invention relates to an automatic door closing device in which a latch is forcibly moved to a full latch position by a closure to securely close a door to a fully closed position.

[0002]

2. Description of the Related Art An apparatus of this type is disclosed, for example, in Japanese Utility Model Laid-Open No. 2-150377, which is filed by the present applicant as a utility model registration application.

[0003] The apparatus disclosed as an embodiment in this publication is applied to a sliding door of an automobile.
As shown in FIG. 6, a control device for controlling the closure includes a vehicle-side control device (02) provided on the vehicle body (01).
And provided directly on the slide door (03)
4) to control the vehicle body (01) side and the slide door (03) side only when the slide door (03) is closed to a predetermined range. The provided power supply connectors (06) are connected to each other so that power is supplied from the vehicle-side control device (02) to the door-side control device (05).

[0004]

In the conventional apparatus as described above, when the sliding door (03) is opened to a position beyond the above range, the power supply connector (06) is separated and the door-side control device (05) is opened. ) Is stopped, whereby the door-side control device (05) is reset to the same state as the initial state, and can be prepared for the next operation of the closure (04).

However, the conventional closure (0
4) and its control device, for example, when applied to a swing type door (not shown), power is supplied from the vehicle body to the door-side control device and the closure by a flexible electric cable passing through a door hinge. Easy and convenient to do,
As in the case of the sliding door, for example, a pillar on the vehicle body side
(Not shown) and the power supply connector (0
Providing the same ones as in 6) increases the number of parts and the number of man-hours for installation work, and also requires improvement of panels, etc.
Not practical.

However, the power supply from the vehicle body to the door is
When the operation is performed by the flexible electric cable, the power is continuously supplied to the control device even when the door is opened, and the control device cannot be returned to the initial state. There is a risk of malfunction or inoperability.

The present invention has been made in view of the above-mentioned problems of the prior art, and has a reset function for returning a control device to an initial state by opening a door without adding any special components. It is another object of the present invention to provide an automatic door closing device which can be applied to a swing type door as well as a sliding door.

[0008]

In order to achieve the above-mentioned object, the present invention is to provide a vehicle in which a striker provided on one of a vehicle body and a door closes to a half-latch position barely engaged with a latch provided on the other. Thus, the latch
In an automatic door closing device in which a door is closed by forcibly moving the door to a full latch position by a closure having an electric driving means, when the latch reaches the half-latch position from the release position side, the operation for the closure is started. A half-latch detection switch that generates a signal and generates a reset signal when the latch passes through the half-latch position from the full-latch position side is connected to an input terminal and a reset terminal of the closure control device, The operation start signal is supplied to an input terminal, and the reset signal is supplied to a reset terminal.

[0009]

When the door is closed from the open state to the half-latch position, an operation start signal is sent from the half-latch detection switch to the input terminal of the closure control device, the closure is operated, and the latch is forcibly moved to the full-latch position. Once moved, the door is securely closed.

Thereafter, when the door is opened, when the latch passes through the half-latch position from the full-latch position, a reset signal is sent from the half-latch detection switch to the reset terminal of the control device of the closure, and the control device returns to the initial state. It can be prepared for the next operation.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 3 shows the automatic door closing device of the present invention.
1 shows a part of an automobile provided with (A).

(1) A front door of an automobile, and a door lock (B) and an automatic door closing device are provided at a rear middle position inside the door.
(A) and a closure (C).

(2) is a key cylinder device provided on the outer surface of the door (1) and linked to the door lock (B) by a rod (3). (4) is a key cylinder device on the outer surface of the door (1). An outside handle provided with the rod (5) and linked to the door lock (B), (6) is provided on the inner surface of the door (1), and linked with the door lock (B) with the rod (7). The inside handle (8) is a knob for locking / unlocking operation, which is provided on the upper side of the inner surface of the door (1) so as to be vertically movable and is linked to the door lock (B) by a rod (9).

Since the basic structure of the door lock (B) is almost the same as that of the conventional door lock, detailed description thereof will be omitted, and only the structure related to the present invention will be described.

As shown in FIGS. 1 and 2, a door lock
(B) shows the main body (1) provided on the rear surface of the base plate (11).
2) Inside, a latch (13) that meshes with a striker (not shown) provided on the vehicle body side, and a pole that restrains the rotation of this latch
(14) are pivotally supported, respectively, with axes (15) and (16) integral with them.

At the front end of the shaft (15) of the latch (13) projecting forward through the base plate (11), a pivot having an arm (17a) extending upward on one side is provided. The lever (17) is fixedly fitted. A cam surface (17b) is formed on the periphery of the rotation lever (17) around the axis (15), and the cam surface (17b)
The actuators (18a) and (19a) of the half-latch detection switch (18) and the full-latch detection switch (19) fixed to the front surface of the base plate (11) are in pressure contact.

The turning lever (17) turns integrally with the latch (13) via the shaft (15), and the latch (13) moves from the open position where the striker is completely disengaged from the striker. When it is barely engaged and reaches the half-latch position where the so-called half-door state is reached, the half-latch detection switch (18) is operated on the cam surface (17b), and the latch (13) is completely engaged with the striker. When the full latch position for restricting the door (1) in the fully closed state is reached, the full latch detection switch (19) is operated on the cam surface (17b).

The rotating lever (17) is linked to the closure (C) as described later. Since other components of the door lock (B) are not directly related to the present invention, only reference numerals and names are described below for reference, and the description of the mutual relationship and the like is omitted.

(20) Open lever (21) Outside lever (21a) Projection (22) Shaft (23) Sub lever (23a) Engagement part (23b) Projection piece (23c) Inclined edge (24) Side plate (25) Inside Lever (26) Shaft (27) Locking / unlocking lever (28) Shaft (29) Slot (30) Headed pin (31) Handle switch (31a) Actuator

The closure (C) is disclosed, for example, in JP-A-2-7087.
It is almost the same as that disclosed in Japanese Patent Publication No. 6 (A) No. 6 and the main structure thereof will be briefly described. The closure (C) is composed of a side plate (24) of a door lock (B) and a door panel (not shown). A motor (33) capable of normal and reverse rotation is provided in a case (32) fixed to the case (32), and by rotating this motor (33) in the normal direction, a speed reducer (34) comprising a worm and a worm wheel (both not shown) is provided. ) And a pinion (36) fixedly fitted to the output shaft (35), the sector gear (37) meshing with the pinion (36) is rotated counterclockwise in FIG.
An intermediate gear (39) connected to the sector gear (37) with a rod (38) is rotated counterclockwise in FIG. 1 (a), and a close gear (40) meshing with the intermediate gear (39) is rotated clockwise. The arm (17) of the rotating lever (17) is rotated by the closing lever (41) formed integrally with the closing gear (40).
By pushing down the tip of a), the rotating lever (17) and the latch (13) integral therewith can be forcibly rotated from the half latch position to the full latch position.

The sector gear (37) has a shaft (42)
(32), and the intermediate gear (39) and the close gear (40) are connected to the side plate of the door lock (B) with the shafts (43) and (44).
Each is pivoted to (24).

When the motor (33) is reversed, the sector gear (37) is returned to the original position shown in FIG. 1 (a) by the operation reverse to the above, and the close lever (41) is rotated. Lever (17)
1 (a) which does not hinder the rotation of the arm (17a).

(45) is fixed to the side plate (24), and when the close lever (41) returns to its original position, the actuator (45a) comes into contact with a part of the close lever (41) and is operated. This is the return confirmation switch.

FIG. 4 shows a control device of the automatic door closing device (A).
An example of the circuit configuration of (46) is shown. In FIG. 4, the same reference numerals as those in FIGS. 1 to 3 indicate the same members as those described above electrically.

The control device (46) includes a main control device (47), a closing operation control circuit (48) for closing the closure (C), and
And a return operation control circuit (49) for returning the closure (C) to the original position.

The main control unit (47) comprises two power supply terminals (51) and (52) connected to the plus and minus electrodes of the power supply (50).
And three input terminals (53) (54) (55) and a reset terminal (56)
And

The input terminal (53) is connected to a normally open contact (hereinafter referred to as an a contact) of the half latch detection switch (18), and the half latch when the latch (13) is closed from the release position to the half latch position. When the contact a of the detection switch (18) is closed, an operation start signal is sent to the input terminal (53).

Normally closed contact of the half latch detection switch (18)
(Hereinafter referred to as contact b) is a reset terminal of the main controller (47)
The reset signal is sent to the reset terminal (56) by closing the b-contact of the half latch detection switch (18) when the latch (13) passes through the half latch position from the full latch position side when the latch (13) is connected to the reset terminal (56). It has become.

The input terminal (54) has a full latch detection switch (19), and the input terminal (55) has a return confirmation switch (4).
5) are connected respectively.

FIG. 5 is a flowchart showing the operation of this embodiment. Next, the operation of this embodiment will be described based on the flowchart of FIG.

When the door (1) is open more than the half-latch position and the closure (C) is normal,
The sector gear (37) of the closure (C) stops at the home position,
In the circuit shown in FIG. 4, the return confirmation switch (45) is closed.

The half-latch detection switch (18) has a contact a open and a contact b closed, and a full-latch detection switch.
(19) is open. At this time, the main control device (47) is maintained in the initial state (S1).

From this state, when the door (1) is closed to the half-latch position manually or by another door moving means (not shown), the a-contact of the half-latch detection switch (18) is closed,
The contact b opens (S2).

When the a contact is closed, the main controller (4
The operation start signal is sent to the input terminal (53) of (7), the door closing operation control circuit (48) is operated, and the motor of the closure (C) is operated.
(33) is rotated forward (refers to rotation of the motor (33) in a direction to rotate the output shaft (35) of the speed reducer (34) clockwise in FIG. 1) (S3).

By the forward rotation of the motor (33) at this time, the sector gear is driven by the mechanical structure of the closure (C) described above.
(37) is rotated in the counterclockwise direction in FIG. 1, whereby the latch (13) is forcibly rotated to the full latch position, and the door (1) is strongly closed to the fully closed state.

The initial rotation of the sector gear (37) at this time opens the return confirmation switch (45) which has been closed, but does not affect the operation of the motor (33).

When the latch (13) reaches the full latch position,
The full latch detection switch (19) closes (S4).

Then, the operation of the door closing operation control circuit (48) is stopped, and at the same time, the return operation control circuit (49) is operated, and the motor (33) of the closure (C) is reversed.
(S5).

By the reverse rotation of the motor (33) at this time, the sector gear (37) is turned clockwise in FIG. 1 toward the original position, and the closing lever (41) is turned on the turning lever (17). )
Is returned to the original position which does not hinder the rotation.

When the rotation lever (17) is returned to the original position, the return confirmation switch (45) is closed (S6), whereby the operation of the return operation control circuit (49) is stopped.
The motor (33) is stopped (S7).

Then, in the unlocked state, the outside handle
When the door lock (B) is released by pulling (4) or the inside handle (6), the latch (13) is released from the pawl (14) and the latch (13) is released from the spring for return rotation. Due to the urging force (not shown), it is rotated from the full latch position to the release position through the half latch position.

When the latch 13 passes through the half-latch position, the contact a of the half-latch detection switch 18 is switched from closed to open, and the contact b is switched from open to closed (S8). When the b contact is closed, a reset signal is sent to the reset terminal (56) of the main controller (47), the main controller (47) is reset (S9), and the controller (46) is returned to the initial state. (S10).

Therefore, when the door is thereafter closed to the half-latch position, the entire control device (46) is always maintained in the initial state, so that there is no risk of malfunction or inoperability. .

[0044]

According to the present invention, the following effects can be obtained. (a) By providing the control device with a reset function that returns to the initial state by opening the door, the power supply on the vehicle side can be eliminated without providing a power supply connector like a conventional automatic door closing device for sliding doors. The present invention can be applied to a swing-type door as it is in a state where the control device and the control device in the door are always connected by a flexible electric cable or the like, and the use can be expanded.

(B) Since the half-latch detection switch can be used as a switch for resetting, it is not necessary to add a new component or the like to make the control device have a reset function.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional side view showing an unlocked state of a door lock and a closure according to an embodiment of the present invention, and FIG.
It is a vertical front view along the XX line of (a).

FIG. 2A is a longitudinal sectional side view showing a door lock and a part of a closure in a locked state, and FIG. 2B is a view showing a state when an open lever is rotated in a release direction.
It is a longitudinal front view similar to (b).

FIG. 3 is a side view showing an example of a door of an automobile equipped with an embodiment of the present invention.

FIG. 4 is an electric circuit diagram showing an example of a control device.

FIG. 5 is a flowchart showing an operation mode of the embodiment.

FIG. 6 is a schematic view showing a control device of a conventional automatic door closing device for a sliding door.

[Explanation of symbols]

(A) Automatic door closing device (B) Door lock (C) Closure (2) Key cylinder device (3) Rod (4) Outside handle (door handle) (5) Rod (6) Inside handle (7) Rod ( 8) Knob (9) Rod (11) Base plate (12) Main body (13) Latch (14) Pole (15) (16) Shaft (17) Rotating lever (17a) Arm (17b) Cam surface (18) Half Latch detection switch (18a) Actuator (19) Full latch detection switch (19a) Actuator (20) Open lever (21) Outside lever (21a) Projection (22) Shaft (23) Sub lever (23a) Engagement part (23b ) Projecting piece (23c) Inclined edge (24) Side plate (25) Inside lever (26) Shaft (27) Locking and unlocking lever (28) Shaft (29) Slotted hole (30) Headed pin (31) Handle switch (31a) Actuator (32) Case (33) Motor (34) Reduction gear (35) Output shaft (36) Pinion (37) Sector gear (38) Rod (39) Intermediate gear (40) Close gear (41) Close lever (42 ) (43) (44) Axis (45) Return confirmation (45a) Actuator (46) Controller (47) Main controller (48) Door closing operation control circuit (49) Return operation control circuit (50) Power supply (51) (52) Power supply terminal (53) (54) (55) Input terminal (56) Reset terminal

Claims (1)

(57) [Scope of request for utility model registration] A striker provided on one of a vehicle body and a door closes to a half-latch position barely engaged with a latch provided on the other of the vehicle body and the door.
In an automatic door closing device in which the door is closed by forcibly moving to a full latch position by a closure having an electric driving means, the operation for the closure starts when the latch reaches the half latch position from the release position side. Generate a signal,
A half-latch detection switch configured to generate a reset signal when the latch passes from the full-latch position to the half-latch position is connected to an input terminal and a reset terminal of the closure control device. An automatic door closing device wherein an input terminal and a reset signal are supplied to the reset terminal.