JP3286243B2 - Door locking and unlocking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a door closer device which detects that a door such as a trunk is in a half-door (retraction start) state and forcibly closes the door to a full latch state. And the like.

[0002]

2. Description of the Related Art For example, when a door of an automobile is closed, a large amount of force is required to close the door because a weather strip reaction force and a lock resistance act immediately before the door is fully closed. Therefore, when the door is closed, the door often enters a half-door (retraction start) state. In this case, the door must be closed again even if it is troublesome.

In order to solve such a problem, there has been known a door closer device which forcibly closes the door to a full latch state when it detects that the door is a half door. Normally, a door closer device has two functions of an unlocking function for unlocking a door and a function of forcibly pulling a latch from a half-door position to a full-latch position. The functions were individually controlled using two actuators. Therefore, there is a problem that the manufacturing cost of the door closer device is high and the device becomes large.

In order to solve such a problem, for example, Japanese Patent Publication No. Hei 5-27748 discloses that one actuator is used to perform a lock release function and a forced retraction function by one actuator. A door lock device (door closer device) is disclosed.

That is, as shown in FIG. 12 (c), a door lock mechanism 51 built in a door is provided with a latch 53 having a recess 53a capable of restraining a striker 52 fixed to a vehicle. I have. The latch 53 is supported so as to be rotatable about a shaft 54 while being constantly urged in a counterclockwise direction in FIG. If the force applied when closing the door is relatively weak, the latch 53 rotates only to the half-door position shown in FIG. 12A even if the striker 52 hits, and the pole (ratchet) 55 is locked. The position is regulated in this state. If the force applied when closing the door is relatively strong, the striker 52 hits the latch 53 to completely rotate the latch 53 to the full latch position shown in FIG. 12B, and the pole (ratchet) 55 is engaged. The position is stopped and the position is regulated in this state.

[0006] The door closer device 56 provided with the door lock mechanism 51 is provided with one forward / reverse motor 57 as an actuator as shown in FIG. When the forward / reverse motor 57 is driven to rotate forward, the rotating plate 58 rotates clockwise from the neutral position in the figure, and one end of the output member 59 fixed to the rotating plate 58 is armed. The rod 61 is brought into contact with and rotated, and the rod 61 is pulled. When the rod 61 is pulled, the latch 53 is forcibly rotated from the half door position to the full latch position.

On the other hand, based on the operation of the opener, the forward / reverse mode
The rotation of the rotation plate 58 from the neutral position in the counterclockwise direction in FIG.
Is in contact with the arm 62 to rotate it, and the rod 63 is pulled. When the rod 63 is pulled, the pole 55 that restricts the position of the latch 53 to the full latch position is rotated in the release direction, and the full latch (lock) of the door is released. Since only one forward / reverse motor 57 is provided,
The size of the door closer 56 has been reduced, and its control can be easily performed by one electric control device.

[0008]

However, when the power supply to the rods 61 and 63 is cut off, the door cannot be opened because of the traction movement.

Further, since it is necessary to dispose a rotating plate 58 rotated for pulling the rods 61 and 63 so that the surfaces thereof are orthogonal to the latch 53, both members 53 and 58 are required. Had to adopt a layout that was not compactly arranged. Therefore, the size of the door closer 56 has not been sufficiently reduced. or,
Since the rotation plate 58 is positioned within a predetermined angle range (for example, about several tens of degrees), the forward / reverse motor 57 is driven forward / reverse within a relatively narrow angle range. A relatively large torque is required for the motor 57. For this reason, the forward / reverse motor 57 used is relatively large, which is one of the reasons that the size of the apparatus cannot be sufficiently reduced. Since the door closer is accommodated in a limited space such as the inside of the door, it has been an important task to reduce the size.

In view of the above, it is an object of the present invention to enable the door to be manually opened when power supply is cut off, to perform a retraction operation from a retraction start position to a full latch position, Drive source 1 for unlocking the body
An object of the present invention is to provide a door locking / unlocking device that can be downsized in a locking / unlocking device that is commonly used by individuals.

[0011]

The present invention uses the following technical means to achieve the above object. According to the first aspect of the present invention, a direction in which the output shaft is disengaged from the striker at a position at which the output shaft can be engaged with the striker for locking the door body in a closed state is rotatable. A latch rotatably supported by a rotating shaft in a state of being biased, a locking member for locking the latch, and restricting the latch to a full latch position on a locking surface of the latch; and the striker includes: When the latch is moved to the retraction start position and the retraction member is engaged with the retraction portion of the latch, the retraction means for rotating from the retraction start position to the full latch position and the retraction member are interlocked. A first lock release means for releasing the lock between the locking member and the latch, a second lock release means for operating the first lock release means, and a rotating shaft of the latch. Parallel rotation A rotating body that swings the retracting means and the second locking release means based on the rotational driving of the drive source, and the retracting member is engaged from the rotation axis center of the latch. The point is that the distance of the latch to the first collision surface is shorter than the distance from the center of the rotation axis of the latch to the second collision surface of the latch where the locking member locks.

According to the second aspect of the present invention, the output shaft is rotatably driven by the drive source and the striker at a position engageable with the striker for locking the door body in the closed state. A latch rotatably supported by a rotating shaft in a state where the latch is urged in a direction to release the engagement, and a locking member for locking the latch and restricting a position of the latch to a full latch position on a locking surface of the latch. When the striker moves and the latch is disposed at the retraction start position, a retraction member engages a retraction portion of the latch, and retraction means for rotating from the retraction start position to a full latch position; First locking release means for releasing the locking between the locking member and the latch by interlocking the retraction member, second locking release means for operating the first locking release means, and the latch of Has a kinematic axis parallel to the pivot shaft, said retraction means based on the rotational driving of the driving source, the second
The gist of the invention is that a rotating body for swinging the unlocking means is provided, and the locking member is configured to be thicker than the retracting member of the retracting means.

According to the first aspect of the present invention, when the striker moves from the opened state of the door, the retracting member of the retracting means is engaged with the retracting portion, and the latch is arranged at the retracting start position. The drive source is driven to rotate the output shaft. As a result, the rotating body rotates, the latch is rotated to the full latch position by the retracting means, the locking member is locked on the locking surface of the latch, and the position of the door body is restricted to the full latch position. Further, when a command to open the door is issued from this state, the drive source is driven again, and the output shaft is rotationally driven. As a result, the rotating body also rotates again, and the second locking means operates the first locking means, so that the retracting member is interlocked and the locking between the locking member and the latch is released. When it is desired to open the door manually, for example, when the power supply is cut off, the locking between the locking member and the latch can be released by directly swinging the first locking releasing means.
In addition, since the rotating body and the latch are arranged so that their respective rotation axes are parallel to each other, they are arranged so that their respective surfaces are parallel to each other, which can contribute to miniaturization of the device. Further, the distance from the center of the rotation axis of the latch to the first collision surface of the latch with which the retracting member is engaged is the distance from the center of the rotation axis of the latch to the second collision surface of the latch with which the locking member is locked. By making the length shorter, the moving distance of the retracting member is shortened, and the rotating body can be downsized.

According to the invention described in claim 2, according to claim 1,
Similarly, when it is desired to open the door manually, for example, when the power supply is cut off, the first locking release means can be directly swung to release the locking between the locking member and the latch. Since the surfaces of the body and the latch are arranged so as to be parallel, it is possible to contribute to downsizing of the device. Further, when the retracting member and the locking member are compared, the locking member receives a greater force from the latch due to the reaction force of the weather strip or the like of the vehicle. Therefore, if the plate thickness of the locking member that receives more force is made larger than the plate thickness of the pull-in member, the device can be made more compact than when both plate thicknesses are made thicker.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a vehicle 1
FIG. At the rear of the vehicle 1, a trunk portion 1a for storing a load is provided. A substantially quadrangular trunk door 2 as a door body is provided at an upper portion of the trunk portion 1a, and forms a storage space for loading a load with the door 2. The trunk door 2 is rotatably supported at its base end, and the rotation axis L0 is parallel to the vehicle width direction of the vehicle 1. The front end side (the rear end side of the vehicle 1) of the trunk door 2 has a shape bent downward in an L-shape.

At the front end of the trunk door 2, a door closer 3 as a locking / unlocking device is mounted at a central position P in a length H in the vehicle width direction. On the other hand, a striker 4 as a locking portion is provided at a portion of the main body of the vehicle 1 facing the door closer device 3. The door closer device 3 is a device that forcibly retracts the striker 4 to the full latch state when the trunk door 2 is in the retracted state, and automatically closes the trunk door 2 completely. At this time, since the door closer device 3 is attached to the central portion of the trunk door 2 in the vehicle width direction, the door 2 can be securely and stably closed.

FIG. 2 is a plan view and a side view for explaining the door closer device 3, FIG. 3 is an explanatory diagram for explaining the inside of the actuator section 5 in the door closer device 3, and FIG. FIG. 5 is an explanatory view for explaining a part of the inside of the closer mechanism part 6 and the inside of the actuator part 5 of the closer device 3, and FIG. FIG. 6 is an explanatory sectional view of a main part of the closer mechanism 6 in FIG. In FIG. 4, the inner part of the actuator unit 5 is shown by a two-dot chain line between the switching terminals 12a to 12c showing the switching state and the rotating body 20, and in FIG. 5, the parts where the members are assembled to each other are assembled. The action line (dashed-dotted line) is drawn and shown.

As shown in FIG. 2, the door closer 3
Is composed of an actuator section 5 and a closer mechanism section 6. As shown in FIG. 3, the actuator unit 5 includes
Resin case 7, electric motor 8, worm 9, plural gears 10
a to 10d, a conductive plate 11 fixed to the gear 10d by means of adhesion or the like, and a plurality of switching terminals 12a that contact the conductive plate 11 to switch the electric motor 8.
12c, and an output shaft 13 for transmitting the driving force of the electric motor 8 to the closer mechanism 6. The resin case 7 is waterproofed with grease or the like so as not to short-circuit the electric parts. ing.

Here, the switching terminals 12a to 12c will be described. 12a is connected to an earth terminal. Reference numeral 12b issues an ON / OFF signal for ascertaining the current position of the U-shaped cam 18, which will be described later, and a controller (not shown) receives the signal. That is, when the conductive plate 11 is in contact with the conductive plate 11, it indicates that the trunk door 2 is in the closing operation state.
When the contact 12b is not in contact with the door 11, it indicates that the trunk door 2 is in the open operation state. 12c is for rotating and driving the electric motor 8 to two positions described later.
The motor 8 continues to rotate while the contact is in contact with the conductive plate 11.

As shown in FIGS. 4 to 6, a plate-like casing 14 to which the components of the closer mechanism 6 are assembled is provided. The casing 14 has an insertion passage 14a into which the striker 4 is inserted, and a limit switch 1 for detecting a retraction start position.
5 is fixed by screws or the like. Casing 14
Are fixed by screws or the like so that the insertion passage 14a is at the center position P (see FIG. 1) and parallel to the trunk door 2. A first support shaft 16 as a rotation shaft is provided in the vicinity of the insertion passage 14 a in a direction perpendicular to the casing 14. In the first support shaft 16,
A substantially disk-shaped latch 17 is rotatably provided, and a U-shaped cam 18 is also rotatably supported at one end. A pull-in member 19 is rotatably supported at the other end of the U-shaped cam 18, and a rod-shaped member 21 connected to the rotating body 20 from the output shaft 13 is rotatably supported at an intermediate portion thereof. ing. A moving pin 19a is provided upright on the retraction member 19 in a direction parallel to the first support shaft 16, and this is a fork 2
2 is assembled. The fork 22 is rotatable by a second support shaft 23 parallel to the first support shaft 16 on the casing 14, and a ratchet 24 as a locking member is mounted on the second support shaft 23. And a substantially fan-shaped configuration for compact construction. As shown in FIG. 6, the thickness t2 of the ratchet 24 is equal to the thickness t1 of the pull-in member 19.
The ratchet 24 is made thicker to improve the strength of the ratchet 24. The second support shaft 23 for supporting the ratchet 24 and the first support shaft 16 for supporting the latch 17 are arranged on both sides of the insertion passage 14a. In this way, the door closer device 3, especially the casing 14 of the closer mechanism 6, can be made substantially symmetrical. In general, functional products such as stop lamps of a vehicle are often symmetrically arranged at left-right symmetrical positions, and it is preferable that the door lock device 3 disposed at the center is also symmetrical for functional products such as stop lamps. The position and size of the door closer can be freely set, which is preferable, and the mounting of the door closer device 3 on the vehicle is facilitated.

Next, the above-mentioned members will be described in more detail. The latch 17 is connected to the casing 14 by the first support shaft 16.
Is formed in a two-stage structure in which the cross section is stepped and the center is thicker, and two outer peripheral surfaces are formed on the upper side and the lower side. Have. On the outer peripheral surface on the lower side of the latch 17,
A concave portion 17b for restraining the striker 4, a locking surface 17c locked in the full latch position, and one of the first tension springs 25 are provided with a spring mounting hole 17d so as to be biased clockwise in FIG. Attached to. A retracting member 19 is provided on the outer peripheral surface on the upper side of the latch 17.
A pull-in groove 17a is formed as a pull-in portion into which is drawn. These relationships are based on the distance Y1 from the axis center of the first support shaft 16 to the first collision surface D1 of the drawing groove 17a.
Is shorter than the distance Y2 from the center of the first support shaft 16 to the second collision surface D2 of the locking surface 17c.

On the lower side of the latch 17 and above the casing (on the front side in FIG. 4), a ratchet 24 is stacked. The ratchet 24 is locked so that the locking portion 24a is locked at a position where the latch 17 can be locked.
The other of the first tension springs 25 is inserted in the second support shaft 23 so as to be rotatable, and is urged in the counterclockwise direction by attaching the other one of the first tension springs 25 to the attachment groove 24b. Further, a contact pin 24c which abuts on the back surface of the fork 22 and is linked to the movement of the fork 23 is provided upright.

A fork 22 is stacked by a second support shaft 23 as first locking release means on the upper side of the latch 17 and above the ratchet 24 (on the front side in FIG. 4). The fork 22 is provided with a long hole 22a, and the retracting member 19 can be moved in the long hole direction by an upright moving pin 19a. The retracting member 19 is installed on the fork 22 (on the front side of the drawing in FIG. 4), that is, at a position on the upper side of the latch 17 which can be engaged with the retracting groove 17a. Also Fork 2
2 is a limit switch fixed on the casing 14.
5 is turned ON, and when the retraction start position is reached, the pressing portion 22b turns the limit switch 15 to the OFF position.
N. Further, a projection 22c is provided so that the rear surface of the U-shaped cam 18 abuts. And fore
22 has a mounting portion 22d for attaching a cut-raised second tension spring 26 to the second tension spring 2.
6 is mounted and configured to bias in a counterclockwise direction. The other of the second tension springs 26 is attached to the cut-and-raised portion 14b of the casing 14.

The retracting member 19 is a curved plate, and is configured to be movable at one end in the direction of the elongated hole 22a of the fork 22 by the above-described moving pin 19a. In addition, the other end is piled up on one end side of the U-shaped cam 18 (on the front side of the paper surface in FIG. 4) and is rotatably connected. Further, a claw portion 19b is formed near one end of the retraction member 19, and as described above, the latch 1
7 is urged in the counterclockwise direction so as to be able to engage with the drawing groove 17a on the upper side. This is because the second tension spring 26 urges the fork 22 counterclockwise.
The fork 23 pushes the retraction member 19 in a direction substantially perpendicular to the direction of the elongated hole 23a. As a result, the claw portion 19b is urged toward the upper outer peripheral surface of the latch 17.

The other end of the U-shaped cam 18 is stacked on the latch 17 (on the near side in FIG. 4) by the first support shaft 16 and is rotatably connected. In addition, as described above, one end is supported by the retraction member 19 and is stacked and rotatably connected. A rod-shaped member 21 stacked on the intermediate portion (on the front side in FIG. 4) is rotatably connected to the intermediate portion. Further, a rod-shaped member 2
1 (on the front side in FIG. 4), one end of the rotating body 20 is stacked and rotatably connected to the rotating body 20.
The other end is formed with an oval connection hole so as not to rotate, and is connected to the output shaft 13 in FIG. Here, since the first support shaft 16, the second support shaft 23, and the output shaft 13 are arranged in parallel, the door closer device 3 becomes compact.

In this embodiment, the frictional force is reduced by inserting a resin coating or a resin washer into the hatched portions C1 to C7 shown in FIG. I have. Further, the first collision surface D of the portion C1 of the latch 17
The first and second collision surfaces D2 can also prevent collision noise between the retracting member 19 and the ratchet 25.

The operation will be described with reference to FIGS. FIG. 7 shows the door cloth at the retraction start position.
FIG. 8 is an explanatory view for explaining a part of the inside of the closer mechanism 6 and a part of the inside of the actuator part 5 of the closing device 3, and FIG.
FIG. 9 is an explanatory view for explaining a part of the inside of the closer mechanism part 6 and a part of the inside of the actuator part 5; FIG. 9 shows the inside of the closer mechanism part 6 of the door closer device 3 in a home position position. FIG. 10 is an explanatory view for explaining a part of the inside of the actuator section 5 and FIG. 10 shows the inside of the closer mechanism section 6 and the inside of the actuator section 5 of the door closer apparatus 3 in a position where the latch 17 is most pulled out. FIG. 3 is an explanatory diagram for explaining a part of FIG. 7 to 10, as in FIG. 4, the switching terminals 12 a to 12 c and the rotating body 20 are indicated by two-dot chain lines.

First, the closing operation of the trunk door 2 will be described. The position of the rotating body 20 shown in FIG. 4 is the initial position,
When the trunk door 2 is open, the rotating body 20 is always located at the initial position. The position of the rotating body 20 shown in FIG. 9 is the home position, and when the trunk door 2 is completely closed (full latch state), the rotating body 20 is always located at the home position. . The conductive printer adhered to the gear 10d of the actuator unit 5
Since the switching terminal 12c becomes nonconductive from the position 11, the rotating body 20 is always disposed at these two positions.

When the latch 17 rotates counterclockwise about the first support shaft 16 against the elastic force of the first tension spring 25 by the movement of the striker 4 as shown in FIG. The member 19 is pushed by the fork 22 and collides with and engages with the collision surface D2 of the drawing groove 17d to rotate in the counterclockwise direction. Accordingly, the fork 22 interlocked with the retraction member 19 also rotates counterclockwise about the second support shaft 23. Then, the pressing portion 22b of the fork 22
Turns on the limit switch 15. When the limit switch 15 is turned on, the actuator unit 5
The motor 8 is driven to rotate, whereby the worm 9 and the plurality of gears 10a to 10d rotate, and the output shaft 13 rotates (see FIG. 3).

When the output shaft 13 rotates, the rotating body 20 is energized from the initial position by the contact between the conductive plate 11 and the switching terminal 12c, and passes through the top dead center of FIG. 9 is rotated counterclockwise to the home position shown in FIG.
With the rotation of the rotating body 20 in the counterclockwise direction, the bar-shaped member 21 forming the link mechanism causes the U-shaped cam 18 to move to the first support shaft 16.
Is pivoted counterclockwise to the top dead center in FIG. 8, and thereafter it is rotated clockwise to reach the home position in FIG. At this time, the retraction member 19
Moves in the direction of the long hole of the fork 22, and is engaged with the drawing groove 17a of the latch 17, so that the latch 17 is also rotated about the first support shaft 16 like the U-shaped cam 18 in FIG. It is turned counterclockwise to the top dead center and thereafter turned clockwise to reach the home position shown in FIG. Further, the position of the ratchet 24 is regulated by the contact pin 24c until the lower outer peripheral surface of the latch 17 contacts, and the ratchet 24 is urged in the counterclockwise direction by the first tension spring 25. However, when the lower outer peripheral surface of the latch 17 comes into contact, it once rotates clockwise against the urging force of the first tension spring 25, and when it comes out of contact, it collides with the collision surface D1 of the latch 17 and again. As a result, the latch 17 is locked by the locking surface 17c at the home position shown in FIG. Thereby, the closing operation of the trunk door 2 is completed.

When the trunk door 2 is manually closed to the full latch state, the ON signal of the limit switch 15 due to the rotation of the fork 22 and the ON / OFF signal of the switching terminal 12b for grasping the current position. Is received by a controller (not shown), and the motor 8 is driven to rotate to follow a normal state (home position position). Accordingly, the rotating body 20, the bar-shaped member 21, and the U-shaped cam 18 are also moved to the normal state. Control to rotate. Also, similarly to the above, when the power supply is cut off, the controller is controlled to return to the normal state when the power supply is made again.

Next, the opening operation of the trunk door 2 will be described. When the trunk door 2 is completely closed (full latch state), the rotating body 20 is located at the home position shown in FIG.

Driver's seat opening for opening the trunk door 2
In response to an open command from a puner switch or a remote control switch, the electric motor 8 starts to rotate and when the output shaft 13 rotates, the rotating body 20 is switched from the home position to the conductive plate 11 described above. Electricity is supplied by contact with the terminal 12c, the electric motor is rotated counterclockwise to the initial position shown in FIG. With the rotation of the rotating body 20 in the counterclockwise direction, the rod-shaped member 21 forming the link mechanism rotates the U-shaped cam 18 clockwise around the first support shaft 16 to the bottom dead center in FIG. After that, it rotates counterclockwise to reach the initial position in FIG. At this time, the retracting member 19 is disengaged from the retracting groove 17a of the latch 17, and moves in the long hole direction of the fork 22,
Like the U-shaped cam 18, the latch 17 is also rotated clockwise around the first support shaft 16 to the bottom dead center in FIG.
Thereafter, it is rotated counterclockwise to reach the initial position in FIG. Further, as for the ratchet 24, when the U-shaped cam 18 rotates from the home position as described above, the back surface thereof pushes the projection 22c, and the fork 2
2 rotates clockwise around the second support shaft 23. Then, the fork 22 rotates in a direction substantially perpendicular to the long hole direction, so that the retraction member 1 provided with the moving pin 19a is provided.
9 also moves away from the upper peripheral surface of the latch 17 in conjunction with it.
At the same time, the back surface of the fork 22 pushes the contact pin 24c provided on the ratchet 24, and the ratchet 17 rotates clockwise around the first support shaft 16. Then, the locking portion 24a of the ratchet 24
Is released from the locking surface 17c of the latch 17. At this time, since the claw portion 19b of the retraction member 19 is separated from the upper outer peripheral surface of the latch 17, it does not engage, and the latch 17 is rotated clockwise by the first tension spring 25, and the striker 4 is moved. Is released, and the opening operation of the trunk door 2 ends.

The manual release and the release when the power supply is interrupted can be achieved by directly rotating the contact pin 24c by rotating the fork 22 clockwise in FIG. 24 is rotated clockwise. Then, striker 4 comes off as before,
The opening operation of the trunk door 2 ends. In the case of manual release, a controller (not shown) receives an OFF signal of the limit switch 15 due to the rotation of the fork 22 and an ON / OFF signal of the switching terminal 12b for grasping the current position, and a normal state. The motor 8 is driven to rotate to the (initial position), and accordingly, the rotating body 20, the rod-shaped member 21, and the U-shaped cam 18 are controlled to rotate to the normal state. Also, similarly to the above, when the power supply is cut off, the controller is controlled to return to the normal state when the power supply is made again.

As described in detail above, according to the present embodiment, the following effects can be obtained. (1) Since the U-shaped cam 18 is coaxially rotatable by the first support shaft 16 common to the latch 17, the U-shaped cam 18 and the latch 17 are superposed on each other. Can be arranged compactly. The rotating body 20
By arranging the latches 17 and the latch 17 in parallel, the door closer device 3 can be compared with a conventional device employing a layout in which the surfaces of the latch 53 and the rotating plate 58 are orthogonal to each other as described in the related art. Further downsizing can be achieved. (2) In the present embodiment, the distance Y1 from the axis center of the first support shaft 16 to the first collision surface D1 of the drawing groove 17a is equal to the second collision of the engagement surface 17c from the axis center of the first support shaft 16. Surface D2
Is shorter than the distance Y2. Accordingly, the moving distance of the retracting member 19 in the direction of the long hole formed in the fork 22 is shortened, so that the fork 22 and the rotating plate 20 can be reduced in size, and the rotating range of the rotating plate 20 can be reduced. Since the door closer 3 can be made smaller, the door closer 3 can be made smaller. (3) In this embodiment, the U-shaped cam 18 and the fork 22
The ratchet 24 and the ratchet 24 are formed in a step-like manner, and a fork 22 used at the time of manual operation is arranged at a central stage. Therefore, when it is desired to open the trunk door 2 manually, the fork 22
Is rotated, the contact pin 24c can be pushed regardless of the operation state of the U-shaped cam 18, and the retraction member 19 can be separated from the retraction groove 17a of the latch 17, so that the ratchet 24 Can also be rotated, and the striker 4 can be removed from the latch 17.
Further, the U-shaped cam 18 can be operated by the electric motor 8 to open the trunk door 2, and these three parts can be arranged compactly. (4) In the present embodiment, the plate thickness t2 of the ratchet 24 is configured to be larger than the plate thickness t1 of the retracting member 19. This is because the ratchet 24 receives a greater force from the latch 17, so that only the ratchet 24, which is a member requiring strength, is configured to be thicker, and the strength can be increased while the size can be reduced.

The present invention is not limited to the above embodiment, but can be embodied as follows, for example, without departing from the spirit of the invention. (1) In the above embodiment, the door closer device 3 is attached to the trunk door 2, but may be attached to the main body of the vehicle 1 corresponding to the door 2. Further, the present invention is not limited to the trunk door 2 and may be applied to other doors. (2) In the above embodiment, the latch 17 and the U-shaped cam 1
And 8 are arranged coaxially by a common first support shaft 16,
It is not limited to being coaxial as long as the respective rotation axes are substantially parallel. (3) In the above embodiment, the ratchet 24 has a substantially fan-shaped shape, but a part thereof may be cut out for weight reduction, and the T-shaped and L-shaped shapes are similarly compact. it can.

[0037]

As described in detail above, according to the present invention,
When the power supply is cut off, the door can be opened manually, and the operation of pulling in from the pull-in start position to the full latch position and unlocking the door are shared by one drive source. In the lock device, it is possible to provide a door lock / unlock device capable of reducing the size of the device.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a vehicle according to the present invention.

FIG. 2 is a plan view and a side view for explaining a door closer device of the present invention.

FIG. 3 is an explanatory diagram for explaining the inside of an actuator section in the door closer device of the present invention.

FIG. 4 is an explanatory view for explaining a part of an inside of a closer mechanism part and an inside of an actuator part of the door closer device of the present invention.

FIG. 5 is an exploded plan view showing main members of the closer mechanism of the present invention.

FIG. 6 is an explanatory sectional view of a main part of a closer mechanism in FIG. 4 of the present invention.

FIG. 7 is a view showing a door cloth in a retraction start position according to the present invention.
FIG. 3 is an explanatory diagram for explaining a part of the inside of a closer mechanism part and an inside of an actuator part of the apparatus.

FIG. 8 is an explanatory view for explaining the inside of the closer mechanism portion of the door closer device and a part of the inside of the actuator portion at the position where the striker of the present invention is most retracted.

FIG. 9 is an explanatory diagram for explaining a part of the inside of a closer mechanism part and an inside of an actuator part of the door closer device in the home position position of the present invention.

FIG. 10 is an explanatory view for explaining a part of the inside of a closer mechanism part and the inside of an actuator part of the door closer device in a position where the latch of the present invention is most pulled out.

FIG. 11 is a side view of a conventional door closer device.

FIGS. 12A to 12C are plan views showing various states of a conventional latch.

[Explanation of symbols]

 Reference Signs List 2 trunk door (door body) 4 striker 8 electric motor (drive source) 13 output shaft 16 first support shaft (rotating shaft of latch) 17 latch 17a drawing groove (drawing portion) 19 drawing member 20 rotating body 24 ratchet (locking) Member) D1 First collision surface D2 Second collision surface

Claims (2)

(57) [Claims] An output shaft is urged in a direction in which the output shaft can be disengaged from a drive source that can be rotationally driven and a striker for locking the door body in a closed state. A latch rotatably supported by a rotation shaft in a state in which the latch is engaged, a locking member for locking the latch, and restricting the latch to a full latch position on a locking surface of the latch; and When the latch is located at the retraction start position, the retraction member is engaged with the retraction portion of the latch, and retraction means for rotating the retraction member from the retraction start position to the full latch position; First unlocking means for unlocking a member and the latch, second unlocking means for operating the first unlocking means, and rotation parallel to a rotation axis of the latch Has an axis, A rotating body that swings the retracting means and the second unlocking means based on the rotational drive of the drive source, and wherein the retractable member is engaged with the retractable member from a rotation shaft center of the latch. A door locking / unlocking device according to claim 1, wherein a distance to one collision surface is shorter than a distance from a rotation axis center of the latch to a second collision surface of the latch to be locked by the locking member. 2. An output shaft is urged in a direction in which engagement with the striker is released at a position where the output shaft can be engaged with a drive source that can be driven to rotate and a striker for locking the door body in a closed state. A latch rotatably supported by a rotation shaft in a state in which the latch is engaged, a locking member for locking the latch, and restricting the latch to a full latch position on a locking surface of the latch; and When the latch is located at the retraction start position, the retraction member is engaged with the retraction portion of the latch, and retraction means for rotating the retraction member from the retraction start position to the full latch position; First unlocking means for unlocking a member and the latch, second unlocking means for operating the first unlocking means, and rotation parallel to a rotation axis of the latch Has an axis, A rotating body that swings the retracting unit and the second unlocking unit based on the rotational drive of the driving source, wherein the locking member is configured to be thicker than a retracting member of the retracting unit. A door locking / unlocking device characterized by the above-mentioned.