JP2001182405A - Opening/closing device for vehicle lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify constitution to miniaturize, and to provide secure actuation in an opening/closing device of a vehicle lock provided with a closing function and an opening function. SOLUTION: An output mechanism 2 is composed to comprise an opening lever 25 engaged with a locking plate by normal rotation of a motor 3 to release engagement between the locking plate with a latch 6, 13, and a closing lever 21 engaged with the latches 6, 13 by reverse rotation of the motor 3 to rotate the latch 6, 13 from a half-latch position to a full-latch position, the motor 3 is fixed to a base plate 10 fixed to a lock main body 1, and the opening lever 25 and the closing lever 21 are pivotally respectively attached to it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closing function for forcibly shifting a locking device for a vehicle opening / closing body from a half latch state to a full latch state by driving a motor, and an open function for releasing engagement with a striker. And a device for opening and closing a lock for a vehicle, comprising:

[0002]

2. Description of the Related Art In a device as described above, a lock body having a latch detachable from a striker and a locking plate detachable from the latch is driven by a motor.
An output mechanism having a rotating member rotatable in two directions from a neutral position, and by rotating the rotating member in one direction from the neutral position, disengagement of the latch and the locking plate, It is known that the latch is moved from the half latch position to the full latch position by rotating in the other direction (for example, see Japanese Patent Publication No. 5-27748).

[0003]

However, in the conventional device as described above, the latch and the locking plate of the lock body are respectively connected to the rotating member of the output mechanism via connecting members such as rods. Therefore, rattling occurs between the connection of each part, and it is difficult to obtain a reliable operation.
In addition, there is a problem that the entire apparatus becomes large and the mounting space is restricted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and has been made in view of the above-described problems. It is intended to provide.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) A lock body having a latch engageable with a striker, a locking plate engaging with the latch and preventing the latch from rotating, a motor rotatable in normal and reverse directions, and An output mechanism configured to disengage the latch from the locking plate and move the latch from the half-latch position to the full-latch position by reversing the motor; An output mechanism engages with the locking plate by forward rotation of the motor, and an open lever that releases the engagement between the locking plate and the latch, and engages with the latch by reverse rotation of the motor, A closing lever for rotating the latch from a half latch position to a full latch position. The wear baseplate, to fix the motor, respectively pivoted to said open lever and closing lever.

(2) In the above item (1), the output mechanism is:
A rotating member pivotally attached to the base plate and rotatable in two directions, an opening direction and a closing direction, from a neutral position by forward and reverse rotation of the motor; and the rotating member, an open lever and a closing lever. Work with each other.

(3) In the above item (2), the rotating member and the closing lever are disposed on one side of the base plate of the lock body, and the open lever is disposed on the other side of the base plate. And the closing lever or the rotating member are linked by a pin penetrating the base plate.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the figure, (1) is a lock body fixed to a back door (not shown) pivotally mounted on a rear part of a vehicle body with a hinge shaft (not shown) having an upper end facing left and right so as to be able to open and close in a vertical direction. The back door is locked in a closed state by engaging with a striker (5) fixed to the vehicle body side.

(2) The lock body is driven by the motor (3).
A closure function for forcibly changing (1) from a half latched state to a full latched state, an open function for releasing the engagement between the lock body (1) and the striker (5), and a cancel function for canceling the closure function. Output mechanism.

[0010] Inside the body (4) of the lock body (1), a latch (6) that can be engaged and disengaged with a striker (5) fixed to the vehicle body side, and a claw (6a) ( A locking plate (7) that can be engaged and disengaged from 6b) is pivotally connected with a latch shaft (8) and a locking plate shaft (9) that are respectively oriented in the vertical direction.

As shown in FIG. 9, the latch (6) has a full latch position which is completely engaged with the striker (5) and a half latch position which is barely engaged with the striker (5) as shown in FIG. As shown in FIG. 11, the striker (5) can be moved to the separated open position.

The locking plate (7) includes a spring (not shown).
By being urged in the counterclockwise direction in FIG. 9 and engaging the claw (6a) in the full latch state, and engaging the claw (6b) in the half-latched state,
While preventing the latch (6) from rotating in the open direction, the latch (6) can be moved to the open position separated from the claws (6a) (6b) as shown in FIG.

The base plate (1) fixed to the body (4)
0) is a substantially horizontal cover (11) covering the upper surface of the body (4).
And a base portion (12) that stands substantially vertically from the rear portion (the upper left portion in FIG. 1) of the cover portion (11).

On the cover portion (11), an engaging pin fixed to a latch shaft (8) so as to rotate integrally with the latch (6) and projecting upward at the free end portion. A cam lever (13) forming a part of a latch (6) to which (13a) is fixed, and a cam portion (13b) formed on an outer periphery of the cam lever (13) are detected.
A half-latch detection switch (14) for detecting a half-latch position of the latch (6) and a full-latch detection switch (15) for detecting a full-latch position are provided.

The motor (3) is fixed to the upper rear surface of the base portion (12) with a plurality of bolts (16) and nuts (17), and is provided with a reduction mechanism (not shown) built in the motor case (3a). And a gear (18) that can rotate forward and reverse.

The output mechanism (2) is provided on the front surface of the base portion (12).
Pivotally mounted with a shaft (19) facing forward and backward, and a gear (18)
A sector gear (20) serving as a rotating member having a tooth portion (20a) that meshes with the sector gear (20) on the front surface of the base portion (12).
(19), a cancel lever (23) pivotally attached to the front surface of the base portion (12) with an axis (22), and a shaft (24) attached to the rear surface of the base portion (12). ) And an open lever (25) pivotally mounted with the lever.

As shown in FIG. 3, the shaft (19) is disposed on the axis (8a) of the latch shaft (8) when viewed from the front.
4) is disposed on the axis (9a) of the locking plate shaft (9), and the axial distance between the shaft (19) and the shaft (24) in the left-right direction is
Distance between the latch shaft (8) and the locking plate shaft (9)
(L) is set substantially equal to (L).

The closing lever (21) is connected to the latch (6).
The open lever (25) requires a large force to move it from the half-latch position to the full-latch position with a large force. Since the locking plate (7), which can be moved without moving, is moved, the locking plate (7) is made of a thinner material than the closing lever (21).

The base portion (12) has an arc-shaped long hole (12a) centered on the axis (19) and pointing in the up-down direction, and a substantially central portion of the long hole (12a) and the rear of the base portion (12). And a neutral detection switch for detecting a neutral position, described later, of the sector gear (20).
An open detection switch (2) for detecting an open position (described later) of the open lever (25) is also provided on the front side.
7) are provided respectively.

The motor (3) is normally rotated by operating a handle switch (not shown) provided on the outer panel of the back door and operating a full latch detection switch (15). The reverse rotation is controlled by the operation, and the stop is controlled by the operation of the neutral detection switch (26).

The sector gear (20) has a protruding portion (20b) protruding from the end of the tooth portion (20a), and a long hole (20c) oriented in the left and right direction in an arc shape centered on the shaft (19). And an engagement hole (20d) extending in an eccentric direction from substantially the center of the long hole (20c) in the longitudinal direction. As shown in FIGS. 2 and 4, the neutral detection switch (26) is normally The motor (3) is stopped at a neutral position which is actuated by contacting the projection (20b), and from this neutral position, the motor (3) rotates in the open direction (counterclockwise in FIG. 2, clockwise in FIG. 4). Direction) and closing direction (Fig. 2
In the clockwise direction and in FIG. 4 in the counterclockwise direction).

The closing lever (21) extends upward and has a switching hole (28a) that can be overlapped with a part of the long hole (20c) and the engaging hole (20d) of the sector gear (20). The arm (28) provided, extends sideways so as to overlap the open lever (25) with the base (12) interposed, and at the tip,
An open arm portion (29) having a pin (29a) projecting rearward through the long hole (12a) of the base portion (12); and a body.
(4) has a closing portion (30) extending obliquely downward, and is always integrated with the sector gear (20).
It can rotate in two directions from the neutral position.

The closing portion (30) engages with the engaging pin (13a) by rotating the closing lever (21) in the closing direction from the neutral position, and moves the latch (6) from the half latch position to the full latch position. The cam lever (13) is rotated so that it can be moved to the position.

Between the sector gear (20) and the arm (28) of the close lever (21), the slot (20c) and the engaging hole (20d) and the switching hole (28a) are slidably fitted. A combined pin-shaped switching member (31) with a flange is provided.

The switching member (31) is provided with an engagement hole of the sector gear (20).
(20d), and as shown in FIGS. 2 and 4, when it is located above the switching hole (28a) and is at the connection position engaged with the engagement hole (20d), With the rotation of the sector gear (20), the two are connected so that the closing lever (21) can also rotate integrally, and as shown in FIG.
(28a) and at the cancel position where it has separated from the engaging hole (20d) and moved to the long hole (20c),
The connection between the sector gear (20) and the close lever (21) is cut off so that the sector gear (20) and the close lever (21) can rotate independently of each other from the center along the (20c).

The cancel lever (23) has an arc shape centered on the shaft (19), and overlaps with the long hole (20c), the engaging hole (20d), and the switching hole (28a) to form a switching member. A curved arm portion having a guide hole (32a) in which a slidable fitting (31) is fitted.
(32), an operation part (33) extending upward, a connection position for holding the switching member (31) at the connection position, and a switching member
(31) can be moved to a cancel position that holds the cancel position, and is normally held at the connection position by a spring (37).

The operating section (33) is provided at a position where it can be operated from the outside by removing a part of the trim on the inner panel side of the back door.

The open lever (25) extends almost upward so as to intersect with the guide groove (12a) of the base portion (12), and when the close lever (21) rotates in the open direction, the pin (29a And an open portion (35) extending downward toward the body (4) and abutting against the projection (7a) of the locking plate (7). In FIG. 3, a detection arm portion (36) extending to the right and capable of contacting the open detection switch (27) is provided. From a standby position where the engagement arm (34) abuts the stopper (12b), Locking plate
(7) can be turned in the open direction (counterclockwise in FIG. 2 and clockwise in FIG. 3), and normally urged toward the standby position by the spring (38). I have.

The open portion (35) comes into contact with the projection (7a) of the locking plate (7) when the open lever (25) rotates in the open direction, and
(7) is moved to the open position.

When the close lever (21) rotates from the neutral position in the open direction, the pin (29a)
(34), the open lever (25) is rotated in the open direction from the standby position, and after the open lever (25) is moved to the open position as shown in FIG. The arm (34) comes off the movement track of the pin (29a), and the pin (29
When a) slides along the outer edge (34a) of the engagement arm (34), while the open lever (25) is held in the open position, the closing lever (21) moves in the open direction in the open direction. It is tolerated.

The outer edge (34a) of the engagement arm (34) of the open lever (25) is formed in an arc shape centered on the shaft (19) when the open lever (25) moves to the open position. ing. With this configuration, the open lever (25) can be reliably held at the open position while the close lever (21) idles.

Therefore, immediately after the motor (3) is stopped by the detection of the open detection switch (27), the closing lever
Even if (21) exceeds the open position due to various inertial forces,
Since the movement after the excess is not transmitted to the open lever (25), deformation and damage of the open lever (25) can be prevented.

Next, each function of the above-described embodiment will be described with reference to FIGS. (Open function) When the back door is in the closed position,
As shown in FIG. 4, the output mechanism (2) has the sector gear (20) and the close lever (21) at the neutral position, and the switching member (31) is held at the connection position. The closing lever (21) is connected. Lock body (1)
As shown in FIG. 9, the latch (6) is in the full latch position, and the locking plate (7) is engaged with the claw (6a).

In this state, when the handle switch of the back door is operated, the motor (3) rotates forward, and the sector gear (20) and the close lever (21) rotate from the neutral position to the open direction. As shown in FIG. 5, the switching member (31) moves to the right of the guide hole (32a) and the pin (29a)
Pushes the engagement arm (34) of the open lever (25),
After the state shown in FIG. 5, the open lever (25) is moved to the open position shown in FIG.

When the open lever (25) is moved to the open position, the engagement arm (34) is displaced from the locus of movement of the pin (29a), and the open lever (24) is not rotated further. And the open portion (35) is engaged with the protrusion (7a) of the locking plate (7) to move the locking plate (7) to the open position, thereby opening the back door. .

The open detection switch (27) is a detection arm unit.
When the motor (3) is detected, the motor (3) is controlled to rotate in the reverse direction, the sector gear (20) and the close lever (21) return from the open position to the neutral position, and as shown in FIG. ) Detects the protrusion (20b),
The power supply to (3) is stopped, and the open lever (25) is
It returns to the standby position by the biasing force of (38).

(Close Function) When the back door is open, the lock body (1) and the output mechanism (2) are in the states shown in FIGS. 11 and 4, respectively. When the back door is closed from this state, the latch (6) engages with the striker (5) and moves from the open position to the half latch position shown in FIG.

When the half-latch detection switch (14) detects that the latch (6) has reached the half-latch position via the cam lever (13), the motor (3) is controlled to rotate in the reverse direction, as shown in FIG. The sector gear (20) and the closing lever (2
1) rotates in the closing direction, and the switching member (31) moves to the left of the guide hole (32a).

When the closing lever (21) moves in the closing direction, the closing portion (30) moves the engaging pin (1) of the cam lever (13).
By engaging 3a) and forcibly moving the latch 6 from the half-latch position to the full-latch position, the back door is retracted from the half-door state to the fully closed position.

When the full latch detection switch (15) detects the full latch position of the latch (6) via the cam portion (13b) of the cam lever (13), the motor (3) is controlled to rotate forward, and the sector gear (20) and the sector gear (20) are controlled. The closing lever (21) returns to the neutral position.

(Cancel Function) During the closing operation of the sector gear (20) and the closing lever (21), for example, the motor
When the rotation of the motor (3) stops due to (3) or a failure of the control circuit or the like, and the sector gear (20) stops at the close position as shown in FIG. There is a possibility that the engagement with the engagement pin (13a) of (13) prevents the latch (6) from moving in the direction of the open position, and the subsequent opening operation of the back door becomes impossible. In such a case, the door opening operation can be recovered by moving the cancel lever (23) from the connection position to the cancel position.

That is, when the cancel lever (23) moves to the cancel position, the switching member (31) moves to the cancel position, and the connection between the sector gear (20) and the close lever (21) is disconnected. In this state, when the close lever (21) is returned to the neutral position, the latch (6) can be moved to the open position. After that, operating the operating means (not shown) separately installed in the appropriate place of the vehicle, the locking plate
By moving (7) to the open position, the back door can be opened.

When the rotation of the motor (3) is stopped for the same reason as described above while the closing lever (21) is at the open position, the locking plate (7) is moved through the opening lever (25). Although the back door may not be able to close due to being restrained by the open position, the close lever (21) is returned to the neutral position with the cancel lever (23) moved to the cancel position even in this case. As a result, the locking plate (7) is released and the back door can be closed.

It should be noted that the present invention is not limited to only the above-described embodiment, and various changes can be made without departing from the technical scope of the present invention. For example, in the above-described embodiment, the sector gear (20) and the close lever (21) are provided separately. However, when the cancel function is omitted, these may be formed integrally. Further, the cam lever (13) may be omitted, and the closing portion (30) may be directly engaged with the latch (6) to rotate the latch (6) from the half latch position to the full latch position.

[0045]

According to the present invention, the following effects can be obtained. (a) According to the first aspect of the present invention, all of the motor and the output mechanism are mounted on the base plate of the lock body, and the open lever and the close lever of the output mechanism are directly engaged with the locking plate and the latch. Therefore, unlike the related art, there is no connecting member for connecting the lock body and the output mechanism, so that the number of parts is reduced, the configuration can be simplified and the size can be reduced, and the connection between each part can be achieved. As a result, the influence of rattling is reduced, and a reliable operation can be obtained.

(B) According to the second aspect of the present invention, a force can be efficiently transmitted from the rotating member to the latch and the locking plate via the close lever and the open lever, thereby ensuring reliable operation. Can be obtained.

(C) According to the third aspect of the present invention, the close lever and the open lever can be disposed so as to overlap with the base plate interposed therebetween, so that the output mechanism can be reduced in size.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a lock body and an output mechanism according to an embodiment of the present invention.

FIG. 2 is a front view of the output mechanism.

FIG. 3 is a rear view of the lock body and the output mechanism.

FIG. 4 is an explanatory diagram of the operation of the output mechanism when the close lever is at a neutral position in a rear view.

FIG. 5 is an explanatory diagram of the operation of the output mechanism when the close lever is performing an open operation in a rear view.

FIG. 6 is an explanatory view of the operation of the output mechanism when the open lever is at the open position in a rear view.

FIG. 7 is an explanatory view of the operation of the output mechanism when the close lever is at the close position in a rear view.

FIG. 8 is an explanatory view of the operation of the output mechanism when the cancel lever is at the cancel position in a rear view.

FIG. 9 is a plan view of the lock body in a fully latched state, also taken along line IX-IX in FIG. 3;

FIG. 10 is a plan view of the lock body in a half-latch state crossed similarly to FIG. 9;

FIG. 11 is a plan view of the lock body in the open state, similarly to FIG. 9;

FIG. 12 is a plan view of the lock body when the crossing locking plate is in the open position similarly to FIG. 9;

[Explanation of symbols]

 (1) Lock body (2) Output mechanism (3) Motor (4) Body (5) Striker (6) Latch (6a) (6b) Claw (7) Locking plate (7a) Engagement (8) Latch shaft (9) Locking plate shaft (10) Base plate (11) Cover (12) Base (12a) Slot (12b) Stopper (13) Cam lever (latch) (13a) Engagement pin (13b) Cam (14) Half latch detection switch (15) Full latch detection switch (16) Bolt (17) Nut (18) Gear (19) Shaft (20) Sector gear (rotating member) (20a) Tooth (20b) Projection (20c) Slot (20d) Engagement hole (21) Close lever (22) Shaft (23) Cancel lever (24) Shaft (25) Open lever (26) Neutral detection switch (27) Open detection switch (28) Arm (28a) switch Hole (29) Open arm part (29a) Pin (30) Close part (31) Switching member (32) Arm part (32a) Guide hole (33) Operating part (34) Engagement arm (35) Open part (36) Detection arm (37) (38) Spring

Claims (3)

[Claims] 1. A lock body having a latch engageable with a striker, a locking plate engaging with the latch to prevent rotation, a motor capable of rotating forward and reverse, and a forward rotation of the motor. And an output mechanism for disengaging the latch from the locking plate and moving the latch from the half-latch position to the full-latch position by reversing the motor. An output lever that engages with the locking plate by forward rotation of the motor to release the engagement between the locking plate and the latch, and an open lever that engages with the latch by reverse rotation of the motor. A closing lever for rotating the latch from a half latch position to a full latch position. A base plate fixed to the click body, is fixed to the motor,
An open and close device for a vehicle lock, wherein the open lever and the close lever are pivotally connected respectively. 2. An output mechanism comprising: a pivot member pivotally attached to a base plate and capable of pivoting from a neutral position in two directions, an open direction and a close direction, by forward and reverse rotation of a motor; 2. The vehicle lock opening and closing device according to claim 1, wherein the opening lever and the opening lever are linked to each other. 3. A rotating member and a closing lever are disposed on one side of the base plate of the lock body, and an open lever is disposed on the other side of the base plate. 3. The opening and closing device for a vehicle lock according to claim 2, wherein the device is linked with a pin passing through the base plate.