JP2002242507A - Actuator and lock device with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an actuator, in which an output member for the actuator and a motor can be used in common and the cost of which can be reduced, and a lock device with the actuator. SOLUTION: In the actuator with a motor 19 and the output member 22 being pivotally attached to a housing 18, decelerating the revolving torque of the motor 19 and being capable of transmitting the revolving torque to either of a plurality of operating mechanisms A2 and 27 in the lock devices A and C, a plurality of output sections 24 and 25 connected to the different operating mechanisms A2 and 27 in the lock devices A and C are mounted on the side face of the output member 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator used for a lock device of an automobile and a lock device provided with the same.

[0002]

2. Description of the Related Art An actuator used in a lock device is connected to a lock / unlock mechanism of the lock device, and unlocks a lock / unlock mechanism for switching the lock / unlock mechanism between a locked state and an unlocked state, and releases a meshing mechanism of the lock device. There is one for latch release connected to the open lever.

[0003]

Although these actuators are similar in basic structure, the operation amount of the output member connected to the locking / unlocking mechanism and the open lever, the position thereof, and the required torque are required. Therefore, it is difficult to share both parts. Therefore, each output member, motor, and the like must be dedicated, which hinders cost reduction of the actuator.

The present invention has been made in view of the above-mentioned problems of the prior art, and has enabled the use of an actuator output member and a motor in common, thereby reducing the cost and providing the actuator. The purpose of the present invention is to provide a locking device.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) An actuator including a motor and an output member pivotally mounted on a housing and capable of reducing the rotational force of the motor and transmitting the rotation force to any of a plurality of operating mechanisms in a lock device. And a plurality of output sections connected to different operating mechanisms of the locking device.

(2) In the above item (1), the output member or the housing is provided with a plurality of engaging portions for locking the ends of the spring for urging the output member to the starting position in the direction in which the spring acts. The starting position of the output member can be adjusted by selecting an engaging portion for locking the end of the spring.

(3) In the above item (1) or (2), the output portion is provided on a side surface of the output member and is formed on the side surface of the output member, the output portion protruding from a housing of the actuator. And a concave arc-shaped output portion centered on the support shaft of the output member.

(4) A meshing mechanism to which the actuator according to any one of the above (1) to (3) is attached and engages with the striker to restrain the opening / closing body in a closed state, and one of the output members of the actuator. And an unlocking mechanism that is connected to the two output units and that is capable of switching between an unlocked state that enables release of the meshing mechanism and a locked state that disables the same by means of an opening operation handle provided on the opening / closing body. The output device and the locking / unlocking mechanism are connected between the support shaft of the output member and the support shaft of the locking / unlocking mechanism.

(5) A meshing mechanism to which the actuator according to any one of the above (1) to (3) is attached and engages with the striker to restrain the opening / closing body in a closed state, and one of the output members of the actuator. A lock device having an open lever that is connected to the two output units and forms an operation mechanism that can rotate in a direction to release the meshing mechanism.
The output unit and the open lever can be connected to a support shaft of the open lever at a position farther than a support shaft of the output member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the following description,
The left side in FIG. 2 is "forward" of the vehicle, and the right side is "rear".
And

(A) is a lock device, which is mounted on a back door (not shown) pivotally attached to the rear part of the vehicle body so as to be openable and closable in a vertical direction, and has a meshing mechanism (A1) and an unlocking mechanism (A2). Have.

(B) is a locking / unlocking mechanism (A2) of the lock device (A).
This is an actuator for locking and unlocking connected to. This actuator (B) is provided with an engagement mechanism (A) of another lock device (C), which will be described later and does not include the locking / unlocking mechanism (A2) shown in FIG.
It can also be used for unlocking the latch to release 1).

The metal housing (1) of the lock device (A) is provided with flanges (1a) and (1a) projecting left and right at the upper edge of a housing portion (2) which is recessed downward. Flange
It is fixed to the lower end surface of the back door with a bolt (not shown) inserted into (1a).

At the substantially center of the flat bottom surface (3) of the housing portion (2) of the housing (1), as the back door opens and closes,
A striker entry groove (4) is provided for allowing the striker (S) fixed to the vehicle body side to advance and retreat.

The engaging mechanism (A1) is accommodated in the accommodating portion (2), is pivotally attached to the bottom surface (3) with a vertical pivot (5), and is engaged with the striker (S) in an engaging groove (6a). And a latch (6b) for a full latch or a half latch (6c) provided on the latch (6). By engaging with
Opening direction of latch (6) (counterclockwise in FIG. 3)
And a metal locking plate (8) for preventing rotation to the right.

Each of the pivots (5) and (7) is supported between a bottom surface (3) and a cover plate (9) fixed to left and right flanges (1a) and (1a) of the housing (1). The upper and lower ends are swaged.

Almost the entire periphery of the latch (6) except the pawls (6b) and (6c) is covered with a synthetic resin material, and the latch (6) is
When the back door is closed at the open position (not shown) where the striker (S) is disengaged from the engagement groove (6a) by being urged in the opening direction by a spring (not shown) wound around (5), the striker ( S) is engaged with the engagement groove (6a), whereby the latch (6) is turned to the full latch position shown in FIG. 3 against the urging force of the spring, and is provided on the locking plate (8). The engaging portion (8a) is engaged with the claw portion (6b) of the latch (6) to restrain the back door in a closed state.

The locking plate (8) is entirely covered with a synthetic resin material except for the engaging portion (8a), and has a contact portion (8b) facing upward at a rear end thereof. The spring (not shown) wound around (7) urges the engaging portion (8a) in the engaging direction (clockwise in FIG. 3), and the engaging portion (8a) engages with the claw portion (6b) of the latch (6).
3 is rotated in the release direction (counterclockwise in FIG. 3) against the urging force of the spring from the engagement position shown in FIG. ), And the back door can be opened by freely rotating the latch (6) in the opening direction.

The locking / unlocking mechanism (A2) is provided on the rear side of the upward base plate (10) fixed to the upper surface of the cover plate (9), and has a support shaft (11) in the front-rear direction.
An open lever (13) pivotally attached to a lower portion of (10) and connected via a wire (12) to an operation handle (not shown) for opening operation provided on the back door, and an open lever (13). Locking / unlocking lever (14) coaxially with the open lever
(13) pivotally attached to the downward arm (13a) with the pivot (15) in the front-rear direction, and the abutted portion of the locking plate (8);
(8b) and a sub-lever (16) that can be disengaged.

A shaft hole (10a) is formed in the base plate (10) on which the actuator (B) is mounted.
Above is a semicircular arc hole centered on the shaft hole (10a).
(10b), but also below, a horizontal hole (10c) in the left-right direction
, Respectively.

The base plate (10) has an unlocking mechanism.
(A2) a locking device (A), and a locking / unlocking mechanism (A2) described later.
Is shared with a lock device (C) having no such device. Therefore, the lateral hole (10c) is used in the case of the present embodiment, but is not used in other embodiments described later.

The open lever (13) is released from the non-operation position shown in FIG. 1 by the operating handle (not shown) via the wire (12) against the urging force of the spring (17) in the release direction (FIG. 1).
In the counterclockwise direction).

The locking / unlocking lever (14) has a downward semicircular arc shape, and has a columnar shape that penetrates into the lateral hole (10c) of the base plate (10) on the front surface of the upper end portion and projects to the front surface of the base plate (10). The key cylinder or the actuator (B) provided on the back door has a linking part (14a), and is rotated between an unlocked position shown in FIG. 1 and a locked position rotated a predetermined amount counterclockwise from the unlocked position. You can move.

The sub-lever (16) is formed of a synthetic resin material, and is a contacted portion (8b) of the locking plate (8).
A long hole (16b) in the left-right direction, in which a contact portion (16a) that can be disengaged from and is slidably engaged with a protrusion (14b) provided on the locking and unlocking lever (14).
In conjunction with the locking / unlocking lever (14), as shown in FIG. 1, an unlocking position where the contact portion (16a) faces the contacted portion (8b), It can rotate around the pivot (15) by a predetermined amount in the counterclockwise direction, and can rotate to the locked position where the contact portion (16a) is retracted above the contacted portion (8b).

As shown in FIG. 1, in the unlocking position of the locking / unlocking lever (14) and the sub-lever (16), that is, in the unlocked state of the locking / unlocking mechanism (A2), the open lever is operated by the operating handle.
When the (13) is turned in the release direction, the sub-lever (16) moves straight in the open direction (to the right in FIGS. 1 and 3),
When the contact portion (16a) contacts the contacted portion (8b), the locking plate (8) is rotated from the engagement position to the release position, and the engagement mechanism (A1) is released. Thereby, the striker (S) is disengaged from the engagement groove (6a) of the latch (6), and the back door can be opened.

In the locked position of the locking / unlocking lever (14) and the sub-lever (16), that is, in the locked state of the locking / unlocking mechanism (A2),
The operating handle allows the wire (12) and open lever (1
Even if the sub lever (16) is moved in the release direction via 3),
Since the contact part (16a) swings with respect to the contacted part (8b),
Unable to open the back door,

The actuator (B) includes a base plate (1
Inside the housing (18) which is screwed to the front side of (0),
A motor (19), and a worm (22) serving as an output member, which meshes with a worm (20) fixed to the rotating shaft of the motor (19), and is pivotally connected by a support shaft (21) pointing in the front-rear direction. Spring for urging the worm wheel (22) to the starting position shown in FIG.
(23). The front end of the support shaft (21) is supported by the housing (18), and the rear end is supported by the shaft hole (10a) of the base plate (10).

As shown mainly in FIGS. 2 and 7, the housing (18) has an arc-shaped stopper (18a) centered on a support shaft (21) projecting toward the front side surface of the worm wheel (22). ),
A first engaging portion (18b) and a second engaging portion (18c) are provided.

On the rear side of the worm wheel (22), as shown mainly in FIG. 2 and FIG. 6, a first output portion (24) which is recessed in an arc around the support shaft (21), It protrudes rearward from the housing (18) and has an arc hole (1) in the base plate (10).
0b), a second output portion (25) protruding toward the rear surface of the base plate (10) is formed.

The linking portion (14a) of the locking / unlocking lever (14) inserted into the lateral hole (10c) is engaged with the first output portion (24) so as to have a predetermined play in the moving direction. . Thereby, the locking / unlocking lever (14) is connected to the worm wheel (22) through a play corresponding to the operation stroke, and with the rotation of the worm wheel (22), the locking / unlocking lever is moved from the locked position to the unlocked position. Alternatively, they are connected so as to be moved from the unlocked position to the locked position.

As shown mainly in FIG. 7, a first engaging portion (22a) and a second engaging portion (22b) of the same shape protruding forward are provided on the front side surface of the worm wheel (22). They are formed with a predetermined interval in the circumferential direction.

Reference numeral (26) denotes a shock-absorbing material fitted to the front side of the worm wheel (22), which is formed of rubber or the like, and has a housing for restricting the rotation range of the worm wheel (22).
It abuts against the stopper (18a) of (18) and reduces the contact noise.

The worm wheel (22) is assembled at a position where the first engaging portion (18b) and the first engaging portion (22a) face each other as shown in FIG. Are the first engaging portions (18
b) By being locked on both sides of (22a), the first output section (2
4) is biased to a neutral position located below the support shaft (21), that is, a starting position.

When the motor (19) rotates, the worm wheel (22) rotates clockwise or counterclockwise from the starting position against the urging force of the spring (23), and the cushioning material (26) is rotated. By contacting the stopper (18a) and stopping the power supply to the motor (19), the motor (19) is returned to the starting position by the urging force of the spring (23).

The actuator (B) is attached to the base plate (10) so as to face the locking / unlocking mechanism (A2). This allows the locking / unlocking lever to protrude from the side hole (10c).
The linking part (14a) of (14) can be easily engaged with the first output part (24). In this state, the first output unit (2
4) is a support shaft of the worm wheel (22) as shown in FIG.
(21) and the linkage (14a) of the locking / unlocking lever (14) so as to be able to move between the support shaft (11) of the locking and unlocking mechanism (A2).

The worm wheel (22) includes an actuator (B) for locking and unlocking and an actuator (L) for unlocking the latch.
Shared with (B). For this reason, the worm wheel (2
The first engagement portion (22a) and the first output portion (24) of the second embodiment and the first engagement portion (18b) of the housing (18) are used in the case of the present embodiment, and the worm wheel (22) The second engaging portion (22b) and the second output portion (25) of the first and second engaging portions of the housing (18)
(18c) is used in the embodiment described later.

Next, the operation of the present embodiment will be described. When the locking mechanism (A2) is unlocked and an operation switch (not shown) provided in the vicinity of the back door or the driver's seat is locked, power is supplied to the motor (19) and the worm wheel (2
2) is rotated from the starting position in the locking direction (clockwise in FIG. 1 and counterclockwise in FIGS. 4 and 7) against the urging force of the spring (23).

Thus, the locking / unlocking lever (14) and the sub-lever (16) move between the support shaft (21) of the worm wheel (22) and the support shaft (11) of the locking / unlocking mechanism (A2). The locking / unlocking mechanism (A2) is switched from the unlocked state to the locked state by being moved from the unlocked position to the locked position via the one output unit (24) and the linking unit (14a).

As shown in FIG. 8, the rotation of the worm wheel (22) is stopped when the cushioning material (26) comes into contact with the right side of the stopper (18a). The supply is stopped and the spring (23) returns to the starting position by the urging force.

When the operation switch is unlocked while the locking and unlocking mechanism (A2) is in the locked state, power is supplied to the motor (19), and the worm wheel (22) resists the urging force of the spring (23). It is rotated in the unlocking direction (counterclockwise in FIG. 1 and clockwise in FIGS. 4 and 7) from the start position.

Thus, the locking / unlocking lever (14) and the sub-lever (16) move between the support shaft (21) of the worm wheel (22) and the support shaft (11) of the locking / unlocking mechanism (A2). The lock mechanism is moved from the locked position to the unlocked position via the one output unit (24) and the linking unit (14a), and the locking and unlocking mechanism (A2) is switched from the locked state to the unlocked state.

As shown in FIG. 9, the worm wheel (22) is stopped from rotating when the cushioning material (26) comes into contact with the left side of the stopper (18a), and the power supply to the motor (19) is reduced. The supply is stopped and the spring (23) returns to the starting position by the urging force.

Next, a case where the above-mentioned actuator (B) is used for releasing the latch of the lock device (C) having no locking / unlocking mechanism (A2) will be described with reference to FIGS.

The lock device (C) in this embodiment is
As shown in FIG. 10, the aforementioned locking and unlocking mechanism (A2) is removed from the base plate (10), and
An open lever (27) is provided below the (10) and constitutes an up-down operation mechanism pivotally mounted on a support shaft (28).

All parts of the lock device (A) and the lock device (C) except for the locking / unlocking mechanism (A2) and the open lever (27) are shared.

The open lever (27) is provided at the lower portion by being turned from the position shown in FIG. 10 in the release direction (counterclockwise in FIG. 10) against the urging force of the spring (29). The abutted portion (27a) abuts against the abutted portion (8b) of the locking plate (8), and the locking plate (8) can be rotated in the release direction.

The worm wheel (2) of the actuator (B)
2) is a second engaging portion of the housing (18) as shown in FIG.
(18c) and the second engaging portion (22b) of the worm wheel (22) are assembled so as to face each other, and both ends of the spring (23) are engaged with both sides of the second engaging portion (18c) (22b). By being stopped, the cushioning material (2) is moved so that the second output portion (25) moves above the support shaft (21).
6) is urged to the starting position shown in FIG. 11 where it abuts the right end of the stopper (18a).

When the motor (19) rotates, the worm wheel (22) rotates clockwise from the starting position against the urging force of the spring (23), and as shown in FIG. (26) comes into contact with the left side of the stopper (18a), and when the power supply to the motor (19) is stopped, the spring (23) returns to the starting position by the urging force of the spring (23).

The actuator (B) has an open lever (2
It is attached to the base plate (10) in the same manner as in the previous embodiment so as to face 7). This allows the housing
The second output portion (2) of the worm wheel (22) protruding from (18)
5) can be easily engaged with the action portion (27b) of the open lever (27). In this state, the second output portion (25) is inserted through the arc hole (10b) of the base plate (10), and as shown in FIG. 10, the support shaft (28) of the open lever (27).
Is disposed so as to be able to move farther than the support shaft (21) of the worm wheel (22).

When the worm wheel (22) rotates, FIG.
, The second output section (25) moves from the right end side to the left end side of the arc hole (10b), and the action section (27) of the open lever (27).
By engaging with b), the open lever (27) can be rotated in the release direction.

Power is supplied to the motor (19) of the actuator (B) by operating an operation switch (not shown) provided near the back door or the driver's seat. The operation switch is switched between a state in which power supply to the motor is enabled and a state in which power supply to the motor is disabled by a switch (not shown) provided at an appropriate position in the vehicle.

In the case where the actuator (B) is used for releasing the latch and the amount of rotation of the worm wheel (22) is changed for locking and unlocking, the spring (23) may be used as necessary. It is preferable to exchange the cushioning material (26).

As described above, by changing the mounting position of the worm wheel (22) and changing the starting position, the worm wheel (22) can be locked and unlocked by the actuator (B).
And the actuator for latch release (B).

Generally, the releasing operation of the meshing mechanism (A1) is performed as follows.
Although a greater force is required than the locking and unlocking operation of the locking and unlocking mechanism (A2), as described above, the rotation of the motor (19) is sufficiently decelerated by the worm (20) and the worm wheel (22), and (2) The output unit (25) transmits a force to the open lever (27) farther than the support shaft (21) of the worm wheel (22) with respect to the support shaft (28) of the open lever (27). Therefore, even if a small motor (19) is used, open lever
(27) can be operated with a large force, and the meshing mechanism (A1)
Can be surely released.

Further, with the rotation of the worm wheel (22), the first output portion (24) moves so as to intersect with the open lever (27), but projects to the rear side of the base plate (10). There is no interference with the open lever (27).

[0056]

According to the present invention, the following effects can be obtained. (A) According to the first aspect of the present invention, the output unit can be selectively connected to the operation mechanism according to the operation mechanism to be operated. The actuator can be shared, and the cost of the actuator can be reduced. In addition, since the output section is provided on the side surface of the output member, the output section can be easily connected to the operation mechanism by attaching the actuator to the lock device so as to face the operation mechanism.

(B) According to the second aspect of the present invention, by changing the engagement position of the end of the spring, the output member can be optimally operated for operating the operation mechanism according to the operation mechanism to be operated. The starting position can be set, and the operation mechanism can be operated smoothly and reliably.

(C) According to the third aspect of the invention, the output member can be shared by the actuator for locking and unlocking and the actuator for releasing the latch with a simple shape.

(D) According to the fourth aspect of the invention, the locking mechanism can be reliably switched between the unlocked state and the locked state with an appropriate force by the actuator.

Further, the motor can be shared between the locking and unlocking actuator and the latch releasing actuator. That is, even when using a motor that outputs the torque required to release the meshing mechanism,
Since no excessive force is transmitted to the locking / unlocking mechanism, there is no possibility that the locking / unlocking mechanism is deformed.

(E) According to the fifth aspect of the present invention, even when a small motor is used, the open lever can be operated with a large force to reliably release the engagement mechanism. Thus, the locking and unlocking actuator and the latch releasing actuator can be shared. In addition, by connecting the open lever to the output portion protruding from the housing, the other output portion does not protrude toward the open lever side, and thus does not hinder the movement of the open lever.

[Brief description of the drawings]

FIG. 1 is a front view of a lock device including a locking and unlocking mechanism according to an embodiment of the present invention.

2 is a side view showing a part of the same along the line II-II in FIG. 1;

FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1, showing a cover plate and a base plate removed.

FIG. 4 is an IV in FIG. 2 showing an actuator.
It is an arrow view.

FIG. 5 is a transverse sectional view taken along the line VV in FIG. 4;

FIG. 6 is a front view of the output member.

FIG. 7 shows a state in which the output member is in the starting position.
FIG. 7 is a vertical sectional view taken along line VII-VII in FIG.

FIG. 8 is a vertical sectional view taken along the line VII-VII in FIG. 2 when the output member is moved to the locking position.

FIG. 9 is a vertical sectional view taken along the line VII-VII in FIG. 2 when the output member is moved to the unlocking position.

FIG. 10 is a front view showing a part of a lock device without a locking / unlocking mechanism according to another embodiment of the present invention.

11 is a longitudinal sectional view corresponding to the line VII-VII in FIG. 2 when the output member is at the starting position when the actuator is used for releasing the latch.

FIG. 12 is a vertical sectional view corresponding to the line VII-VII in FIG. 2 when the output member is rotated when the actuator is used for releasing the latch.

[Explanation of symbols]

 (A) Locking device (A1) Meshing mechanism (A2) Locking / unlocking mechanism (operating mechanism) (B) Actuator (C) Locking device (S) Striker (1) Housing (1a) Flange (2) Housing (3) Bottom (4) Striker entry groove (5) Pivot (6) Latch (6a) Engagement groove (6b) (6c) Claw (7) Pivot (8) Locking plate (8a) Engagement (8b) Abutted part (9) Cover plate (10) Base plate (10a) Shaft hole (10b) Arc hole (10c) Side hole (11) Support shaft (12) Wire (13) Open lever (13a) Downward arm (14) Locking lever ( 14a) Linking part (14b) Projecting part (15) Pivot (16) Sub lever (16a) Contact part (16b) Long hole (17) Spring (18) Housing (18a) Stopper (18b) First engaging part (18c ) Second engaging part (19) Motor (20) worm (21) support shaft (22) worm wheel (output member) (22a) first engaging part (22b) second engaging part (23) spring (24) ) 1st output section (25) 2nd output section (26) cushioning material (27) open lever (operation mechanism) (27a) abutment section (27b) Use portion (28) shaft (29) spring

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuyuki Fukushima 1-14-7 Maruyama, Isogo-ku, Yokohama-shi, Kanagawa F-term in Oi Works (reference) 2E250 AA21 HH02 JJ42 JJ43 KK02 LL01 MM03 NN02 PP05 QQ10 RR13 RR23 RR34 RR57

Claims (5)

[Claims] 1. An actuator comprising: a motor; and an output member pivotally mounted on a housing and capable of reducing a rotational force of the motor and transmitting the rotation force to any one of a plurality of operating mechanisms in a lock device. An actuator, characterized in that a plurality of output portions connected to different operation mechanisms of the lock device are provided on a side surface. 2. An output member or housing is provided with a plurality of engaging portions for locking an end of a spring for urging the output member to a starting position in a direction in which the spring acts, and engaging the end of the spring. The starting position of the output member can be adjusted by selecting an engaging portion to be stopped.
An actuator as described. 3. An output unit is provided on a side surface of the output member,
And an output portion protruding from a housing of the actuator and an output portion formed on a side surface of the output member and having a concave arc shape centered on a support shaft of the output member. Or the actuator according to 2. 4. An engagement mechanism to which the actuator according to claim 1 is attached and which engages with a striker to restrain an opening / closing body in a closed state, and is connected to one output portion of an output member of the actuator. A lock mechanism having an operating mechanism capable of switching between an unlocked state in which the engagement mechanism can be released and a locked state in which the unlocking state is disabled by an opening operation handle provided on the opening / closing body. , Wherein the output unit and the locking and unlocking mechanism are connected between a support shaft of the output member and a support shaft of the locking and unlocking mechanism. 5. The actuator according to claim 1, wherein the actuator is attached to the engagement mechanism for engaging the striker to restrain the opening / closing body in a closed state, and is connected to one output portion of an output member of the actuator. A lock device having an open lever serving as an operation mechanism rotatable in a direction to release the meshing mechanism, wherein the output unit and the open lever are connected to a support shaft of the open lever by the output member. A lock device including an actuator, which can be connected at a position farther than the support shaft.