JP3433372B2 - Electric closing device of opening and closing body - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forcibly closes an opening / closing body to a fully closed state by electric drive means such as a motor when the opening / closing body is closed from an open state to a half-latch state. The present invention relates to an electric closing device for an opening / closing body.

[0002]

2. Description of the Related Art As a conventional device of this type, for example,
There is one disclosed in Japanese Patent Publication No. 2-4754. In this device, the pivot plate is fixedly fitted to the shaft of the latch in the lock device arranged on the opening / closing body side, the lever is pivotally fitted, and the latch is separated from the striker provided on the vehicle body side from the open position, By moving to a half-latch position that barely engages the striker, the motor is actuated and the lever forces the latch through the pivot plate from the half-latch position to the full-latch position where it fully engages the striker. The door is closed from the half-door to the fully-closed state.

[0003]

However, in the above-mentioned conventional electric closing device for the opening / closing body, the latch and the rotating plate can be freely rotated without being obstructed by the lever except when the electric closing device is activated. In order to enable movement, a required play corresponding to the amount of rotation between the open position of the latch and the half-latch position is provided between the lever and the rotating plate, and when the electric closing device operates, From the time the motor starts to the time the lever rotates the latch, the lever idles by the amount of play described above, so the latch rotates toward the full-latch position after detecting the half-latch position. There is a problem that a time loss required for idling occurs before the start of the operation, and the opening / closing body cannot be closed quickly.

In view of the problems of the above-mentioned conventional techniques, an object of the present invention is to reduce the time loss of the closing operation of the opening / closing body by electric power so that the opening / closing body can be closed quickly and surely. Another object of the present invention is to provide an electric closing device for an opening / closing body, which is capable of improving certainty of operation, safety and durability.

[0005]

According to the present invention, the above problems can be solved as follows. (1) The latch pivotally attached to the locking device provided on either the vehicle body side or the opening / closing body side moves from the open position where it is disengaged from the striker provided on the other side to the half-latch position where it barely engages with the striker. In the electric closing device for the opening / closing body, the electric drive device is actuated to forcibly move the latch to the full latch position where the latch is completely engaged with the striker and locked by the locking plate. An arm pivotally attached to a lock device and a rotating lever that rotates integrally with the latch and reciprocally moved by a drive device from a non-operating position to an operating position through an intermediate position. And a pushing portion pivotally attached to the tip of the arm and formed on the tip comes into contact with the turning lever to move the arm from the intermediate position to the operating position. A connecting lever in which the rotating lever can be moved together with the latch from the half-latch position to the full-latch position to the engaging position, and the pressing portion can be moved to the release position laterally separated from the rotation locus of the rotating lever. And a biasing means for biasing the connect lever toward the engagement position,
When the arm returns from the intermediate position to the inoperative position,
It is provided with a stopper that abuts on a protrusion provided on the connect lever and forcibly rotates the connect lever to the release position.

(2) In the above item (1), an open lever is provided for moving the connect lever and the locking plate toward their respective releasing positions by operating the latch releasing operation means of the opening / closing body.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION FIGS. 1 to 5 show an embodiment of the present invention, and FIGS. 6 to 13 show operating modes of respective parts thereof. As shown in FIGS. 1 to 5, and particularly FIG. 2, this electric closing device for an opening / closing body is a back door (B) which is an opening / closing body pivotably attached to an upper rear end of a vehicle body (A) of an automobile. It is incorporated in a lock device (C) provided at the lower end of the.

The lock device (C) is a latch housed in a housing (1) fixed to the lower end of the back door (B).
It is provided with (2) and a locking plate (5). latch
(2) is fixed to a shaft (3) pivotally supported by the housing (1) and has a meshing groove (2a) which can be engaged and disengaged with a striker (4) provided on a vehicle body (A) of an automobile, and a locking plate. It has two step parts (2b) and (2c) which can be engaged with (5). The locking plate (5) is pivotally supported by the housing (1) with a shaft (6) and is bent upward with a claw part (5a) which can be engaged with and disengaged from the step parts (2b) and (2c) of the latch (2). And an abutting portion (5b). In FIG. 5, the latch (2) is always urged in the counterclockwise direction and the locking plate (5) is always urged in the clockwise direction by springs (not shown).

As shown in FIGS. 1 and 4, a pivot lever (7) is fixed to the upper end of the shaft (3) of the latch (2), and the latch (2) and the pivot lever (7) are connected to each other. Are designed to rotate together. The turning lever (7) has a substantially disc-shaped base.
Tip (7) extending rearward from (7a) through neck (7b)
c) and the tip (7c) has an arm (15b) described later.
It is bent with respect to the base portion (7a) so as to be substantially parallel to the pivot axis (15a) of the. Further, the left side edge of the tip portion (7c) forms an abutting edge (7d) which is in a substantially arcuate shape in a plan view and abuts with a pushing portion (17a) of the connect lever (17) described later.

When the back door (B) is open, the latch (2) and the rotating lever (7) are located at the open position as shown in FIG. 11 which is separated from the striker (4). When the back door (B) is closed to a so-called half-door state, the striker (4) barely engages with the engagement groove (2a), and the step portion
The locking plate (5) is engaged with the claw portion (5a) of the locking plate (5) to prevent it from rotating toward the open position, and is located at the half-latch position as shown in FIG. When closed, the striker (4) is completely engaged with the engagement groove (2a), and the claw portion (5) of the locking plate (5) is engaged with the stepped portion (2c).
It is located at the full latch position as shown in FIG. 4 in which a) is engaged and rotation in the open position direction is prevented.

A base plate (8) facing upward and forming a part of the housing (1) is fixed to the housing (1), and a locking device is attached to the base plate (8).
A control mechanism section (D) of (C) is provided.

The control mechanism section (D) has a motor (9), which is an electric drive device capable of rotating in the forward and reverse directions, a motor type actuator (10) for locking and unlocking operation, and a shaft (11a), which is a base plate ( 8) A lock / unlock lever (11) pivotally supported by the actuator (10) and connected to a drive lever (10a) of the actuator (10) and movable to a lock position and an unlock position, and a support for the lock / unlock lever (11). Sub-lever (12) slidably supported on part (11b)
An open lever (13) pivotally supported by the base plate (8) by the shaft (11a) and connected to a latch release operation means (not shown) of the back door (B), and a back door (13).
The base plate (8) has a key lever (14) connected to a key cylinder (not shown) provided in (B) and a pivot (15a) that is at a right angle to the shaft (3) of the latch (2) or has a required inclination angle. ), And the sector gear (15) meshed with the pinion (9a) of the reduction gear connected to the motor (9) and the sector gear (15) are integrated with the lower part of the pivot shaft (15a). It has an extending arm (15b) and a connect lever (17) connected to the lower end of the arm (15b) by a connecting shaft (16) parallel to the shaft (15a) of the arm (15b).

The motor (9), the key lever (14), the sector gear (15) and a part of the arm (15b), and the connect lever (17) are arranged on the front side of the base plate (8). In addition, other actuators (10), locking / unlocking lever (11), sub-lever (12), open lever (13), etc.
It is arranged on the rear surface side of the base plate (8).

As shown in FIGS. 6 to 10, the open lever (13) has a shaft at the lower end of the first arm portion (13a) extending downward.
(13b) has one end of the sub-lever (12) rotatably connected to it and has a second arm portion (13c) extending in the direction of the connect lever (17), and has a latch release operation means such as a door handle. By operation, it is rotated counterclockwise from the position shown in FIG. 6 to the latch release position shown in FIG.

When the back door (B) is closed and the locking / unlocking lever (11) is in the unlocked position shown in FIG. 3, the sub-lever (12) is released by the latch release operation of the open lever (13).
By linearly moving to the left from the position shown in Fig. 6, the pushing portion (12a) formed at the other end abuts the abutting portion (5b) of the locking plate (5), thereby releasing the locking plate (5). Activate it to disengage the latch (2),
(B) can be opened.

The motor (9) is closed from the state where the back door (B) is opened, and the latch (2) reaches the half-latch position, which is a half-latch detection switch (not shown).
When the latch (2) reaches the full-latch position and the full-latch detection switch (not shown) detects this, the latch (2) is controlled to rotate in the normal direction.

Sector gear (15) and its arm (15b)
Is always in the non-actuated position shown in FIGS. 1, 6, 9, and 10, and is rotated counterclockwise in FIG. 6 etc. by the forward rotation of the motor (9). Through position,
When the operating position shown in FIG. 8 is reached, whereby the latch (2) reaches the full-latch position and the motor (9) is rotated in the reverse direction, the motor is returned to the original non-operating position and rotated, and stopped at that position. To do.

The connecting lever (17) is actuated from the intermediate position of the arm (15b) by the pushing portion (17a) formed at the right end contacting the abutting edge (7d) of the rotating lever (7). By rotating the lever to the position, the rotation lever (7) can push the latch (2) together with the latch (2) from the half latch position to the full latch position, and the pushing portion (17a) rotates. The release position shown in FIGS. 6, 9 and 10 separated from the contact edge (7d) of the moving lever (7) in a direction substantially orthogonal to the plate surface of the tip portion (7b) of the rotating lever (7). 7 and is normally urged toward the engagement position by the urging force of a spring (18) which is an urging means. The sector gear (15) and its arm (15b) are shown in FIG. When it is returned and rotated from the intermediate position to the non-operating position shown in FIG. 6, the projecting piece (17d) projecting downward at the left end is
It comes into contact with a stopper (19) provided on the base plate (8) and is flipped up to a release position, and is prevented from moving toward the engaging position.

At the upper edge of the right end of the connect lever (17), the front shape is extended downward to the right and downward, and the front shape is generally downward U-shaped. A bent portion in which a step portion (17b) bent backward in a hook shape is extended to the rear of the base plate (8) through a substantially rectangular opening (20) formed in the base plate (8). Piece (17c)
Are lined up.

The second arm portion (13c) of the open lever (13) is engaged below the stepped portion (17b) of the bent piece (17c), and the open lever (13) is at the latch release position. When it is rotated, the bent piece is bent by the second arm portion (13c).
(17c) is flipped up so that the connect lever (17) can be rotated to the release position against the biasing force of the spring (18).

Also, a bent piece (17c) of the connect lever (17)
Engage the open lever (13) through the opening (19) in the base plate (8), so that the connect lever (1
7) and the open lever (13) are hard to come off from each other, and the connect lever (17) is guided by the edge of the open lever (13) or the opening (19) so that the connect lever (17) moves smoothly and surely. be able to.

Next, the operation of this embodiment will be described mainly with reference to FIGS.
This will be described with reference to FIG. 6 and 11 show a state in which the back door (B) is open and the latch (2) is located in the open position. At this time, as shown in FIG. 6, the sector gear (15) is in the non-actuated position, and the connect lever (17) bounces to the release position with the protruding piece (17d) contacting the stopper (19). It is raised to prevent movement toward the engagement position.

From this state, the back door (B) is moved in the closing direction, the striker (4) enters the engaging groove (2c) of the latch (2), and the latch (2) is rotated to the half-latch position. When moved, the half-latch detection switch is actuated and the motor (9) is rotated in the forward direction, whereby the sector gear (15) and its arm (15b) move from the non-actuated position to the actuated position via the intermediate position. 6 is rotated counterclockwise in FIG.

By a slight rotation of the sector gear (15) from the first non-actuated position to the intermediate position, the connect lever (17), which had been flipped up to the released position, has a protruding piece.
Since (17d) gradually moves away from the stopper (19), it is gradually rotated toward the engagement position by the urging force of the spring (18), and as shown in FIG.
When (15) reaches the intermediate position, it reaches the engaging position completely, and the pushing portion (17a) faces the contact edge (7d) of the rotating lever (7) located at the half latch position. To do.

By the subsequent rotation of the sector gear (15) from the intermediate position to the operating position, the connect lever (17) moves substantially linearly from the state shown in FIG. 7 to the right as shown in FIG. Then, the abutting edge (7d) of the turning lever (7) is pushed by the pushing portion (17a), and the turning lever (7) and the latch (2) are moved from the half latch position to the full latch position. The back door (B) is forcibly rotated to close the back door (B) from the half-door state to the fully-closed state.

When the latch (2) is rotated to the full latch position, the claw portion (5a) of the locking plate (5) engages with the stepped portion (2c) of the latch (2) and the full latch detection switch is activated. Then, the motor (9) is reversely rotated and the sector gear (15) is returned to the original non-actuated position shown in FIG. Accordingly, the connect lever (17) is
(17a) is separated from the contact edge (7d) of the rotating lever (7) and once returned to the same position as shown in FIG. 7, and then the intermediate position of the sector gear (15) is deactivated. During the return rotation up to, the protrusion (17d) contacts the stopper (19) and is flipped up to the release position as shown in FIG. 9 and held at that position.

When the back lever (B) is fully closed and the open lever (13) is rotated to the latch release position as shown in FIG. The sub-lever (12) is moved to the left by the 1 arm part (13a), the locking plate (5) is released by the pushing part (12a) as shown in FIG. 13, and the latch (2) is already The back door (B) is immediately opened by freely rotating to the open position shown in FIG. 6 without being hindered by the connect lever (17) held in the release position.

When the open lever (13) is rotated to the latch release position as shown in FIG. 10 by the operation of the latch release operation means during the closing operation between the states shown in FIGS. 7 and 8. , As above, locking plate
(5) is released and the open lever (1
The bent piece (17c) of the connect lever (17) is flipped up by the second arm portion (13c) of 3), and the connect lever (17) is rotated to the release position against the biasing force of the spring (18). The latch (2) is immediately released from the restraint by moving the back door.
(B) can be opened quickly. Therefore, when a foreign object is caught in the back door, the back door can be opened immediately even while the motor (9) is being driven.

[0029]

(A) According to the invention described in claim 1, with a slight movement of the arm at the initial stage of the operation of the electric drive device,
Since the connect lever can be moved to the engaging position where it can be engaged with the turning lever, the time loss from when the latch reaches the half-latch position to when it is actually turned by the drive device is significantly reduced compared to the conventional one. It can be shortened.

(B) When the drive device is not operated, the connect lever contacts the stopper and is flipped up to the release position, and the pushing portion is completely separated from the rotating lever. Sliding contact with the connect lever does not cause abnormal noise or wear.

(C) According to the second aspect of the invention, when the latch release operating means of the opening / closing body is operated during the closing operation of the opening / closing body, the open lever causes the connect lever and the locking plate to move to the release position. It is moved, the restraint of the latch is immediately released, and the opening and closing body can be freely opened and closed, so by any chance, something was caught between the opening and closing body and the car body during the closing operation of the opening and closing body. Even if
The opening / closing body can be opened immediately by operating the latch release operation means, which is safe.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a motor is removed in an embodiment of an electric closing device for an opening / closing body of the present invention.

FIG. 2 is likewise a side view showing a state in which a motor is mounted.

FIG. 3 is likewise a rear view.

FIG. 4 is a view seen from an arrow IV in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a front view of a main part of a control mechanism unit in a door open state.

FIG. 7 is a front view of the main part of the control mechanism section showing the first operating state.

FIG. 8 is a front view of the main part of the control mechanism section showing a second operating state.

FIG. 9 is a front view of a main part of a control mechanism section showing a third operating state.

FIG. 10 is a front view of the main part of the control mechanism section showing a fourth operating state.

FIG. 11 is a plan view of a main part of a lock mechanism section in a door open state.

FIG. 12 is a plan view of a main part of a lock mechanism section in a half-latch state.

FIG. 13 is a plan view of a main part of a lock mechanism section in a door opening operation state.

[Explanation of symbols]

(A) Body (B) Back door (C) Lock device (D) Control mechanism section (1) Housing (2) Latch (2a) Engagement groove (2b) (2c) Step (3) axis (4) Strike (5) Locking plate (5a) Claw (5b) Contact part (6) axis (7) Rotating lever (7a) Base (7b) Tip (7c) Neck (7d) Contact edge (8) Base plate (9) Motor (electric drive device) (9a) Pinion (10) Actuator (10a) Drive lever (11) Locking and unlocking lever (11a) axis (11b) Support (12) Sub lever (12a) Pushing part (13) Open lever (13a) First arm part (13b) axis (13c) Second arm part (14) Key lever (15) Sector gear (15a) Axis (15b) Arm (16) Connection shaft (17) Connect lever (17a) Pushing part (17b) Step (17c) Bent piece (17d) Projection piece (18) Spring (biasing means) (19) Stopper (20) Open

Claims (2)

(57) [Claims] 1. A half-latch position in which a latch pivotally mounted on a lock device provided on either the vehicle body side or the opening / closing body side barely engages with the striker from an open position where it is disengaged from a striker provided on the other side. To move the electric drive to operate the electric drive so that the latch is completely engaged with the striker and is forcibly moved to the full latch position where it is locked to the locking plate. In the device, a rotation lever that rotates integrally with the latch and a lock device are pivotally attached to the drive device so that the drive device can reciprocate between a non-operating position, an intermediate position, and an operating position. Arm and a pusher portion pivotally attached to the tip of the arm and formed on the tip of the arm abuts the turning lever to move the arm from the intermediate position to the operating position. By the movement, it is possible to move the turning lever together with the latch from the half latch position to the full latch position to the engaging position, and to move the pushing portion to the releasing position laterally separated from the turning locus of the turning lever. And a biasing means for biasing the connect lever toward the engagement position, and when the arm returns from the intermediate position to the non-operating position,
An electric closing device for an opening / closing body, comprising: a stopper that comes into contact with a protrusion provided on the connect lever to forcibly rotate the connect lever to a release position. 2. The electric open / close body according to claim 1, further comprising an open lever for moving the connect lever and the locking plate toward respective release positions by operating the latch release operation means of the open / close body. Closure device.