JPH116341A - Locking/unlocking device of door body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking/unlocking device of a door body which can be securely and stably closed while miniaturizing the device and taking the fitting position of the device in a vehicle into consideration, in the device whose pulling-in motion from the half-latch condition to the full-latch condition and the unlocking motion of the door body can be done by one shared driving source. SOLUTION: A drive cam 12 moving on the basis of the revolution of an electric motor M is rotatably supported by a pivot 7 used in common for a latch 8 engaged with a striker 4 fixing to close a trunkdoor. The cam 12 pushes the latch 8 to the full latch position through the second ratchet 17 by the swing motion when the latch 8 is positioned in the half-latch position and pushes out the first ratchet 11 through a fixing pin 11b to unfix the latch 8 when the latch 8 is positioned in the full-latch position. Such a door closer device 3 is provided at the central position of the breadthwise length at the front end of a door.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closer device, for example, which detects that a door body such as a trunk door is in a half-latch state and forcibly closes the door body to a full-latch state. The present invention relates to a door locking / unlocking device.

[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 weatherstrip reaction force or a lock resistance acts immediately before the door is fully closed. Therefore, when the door is closed, the door often becomes a half door (half latch) state. In this case, the door must be closed again even if it is troublesome. This can occur in trunk doors as well.

In order to solve such a problem, there is known a door closer device which forcibly closes a trunk door to a full latch state when detecting that the trunk door is a half latch. 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 latch position to a full latch position. Conventionally, these functions are provided. Control was performed individually using two actuators. Therefore, there is a problem that the manufacturing cost of the door closer device is high, and the size of the device becomes large, which is one factor of the reduction of the trunk volume.

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

That is, as shown in FIG. 14 (c), a latch 53 having a recess 53a capable of restraining a striker 52 fixed to a vehicle is provided in a door lock mechanism 51 built in a trunk door. ing. Latch 53
Is supported so as to be rotatable about a shaft 54 while being constantly urged in the counterclockwise direction in FIG. If the force applied when closing the door is relatively weak, the latch 53 rotates only to the half-latch position shown in FIG.
55 is locked and the position is regulated in this state. If the force applied when closing the door is relatively strong, the latch 53 is completely rotated to the full latch position shown in FIG. 14B by hitting the striker 52, and the pawl (ratchet) 55 is locked. The position is regulated in this state.

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 connected to the arm 60. 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 latch position to the full latch position.

On the other hand, when the forward / reverse motor 57 is driven in reverse rotation based on the operation of the opener, the rotating plate 58 rotates counterclockwise in FIG.
The other end contacts the arm 62 to rotate it, and the rod 63 is pulled. When the rod 63 is pulled, the pawl 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 device 56 has been reduced, and its control can be easily performed by one electric control device.

[0008]

However, it is necessary to arrange the rotating plate 58, which is rotated for pulling the rods 61 and 63, so that each surface is perpendicular to the latch 53. However, a layout in which both members 53 and 58 are not arranged compactly has to be adopted. Therefore, miniaturization of the door closer device 56 has not been sufficient.

Further, depending on the position of the door lock mechanism 51 attached to the trunk door, the door may not be able to be closed reliably and stably. As an example to solve this problem, it is conceivable to use a plurality of door closer devices 56 to cope with the problem. However, this leads to an increase in the number of steps for assembling the door closer device 56 to the vehicle and an increase in the cost of the vehicle. Therefore, it is necessary to consider the attachment position of the door closer device 56 to the trunk door.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to share the operation of retracting from a half latch into a full latch and the operation of unlocking a door by a single drive source. Provided is a locking / unlocking device for a door body, in which the size of the device is reduced and the door body can be securely and stably closed in consideration of a mounting position of the device with respect to a vehicle. It is in.

[0011]

According to the first aspect of the present invention, a base end portion of the vehicle can be rotated with respect to a trunk portion of the vehicle so as to form a rotation axis parallel to a width direction of the vehicle. And a door-opening / unlocking device which is opened and closed with its rotation axis as a fulcrum, comprising: a drive source capable of rotationally driving an output shaft; and a locking portion for locking the door body in a closed state. And a latch rotatably supported in a state where the latch is urged in a direction of releasing the engagement with the locking portion, and restricting the latch to a half latch position and a full latch position. Locking means, a retracting means for rotating the latch from the half latch position to the full latch position, and a locking means for restricting the latch to the full latch position when the latch is disposed at the half latch position. Unlocking means to be engaged and parallel to the rotation axis of the latch A cam for activating the retracting means and the unlocking means, the cam body being arranged to have a rotating shaft and being rotationally driven based on the driving of the driving source, The gist is that it is provided at one of the center position of the length in the vehicle width direction at the leading end portion or the vehicle body corresponding to the position.

According to a second aspect of the present invention, a gist of the present invention is that the rotation axis of the latch is disposed in a direction orthogonal to the door or the outer plate of the vehicle body. The gist of the invention described in claim 3 is that the latch is arranged close to the door body or an outer plate of the vehicle body.

According to the first aspect of the present invention, the driving source is driven to rotate the output shaft, so that the cam is driven to rotate about a rotation axis parallel to the rotation axis of the latch. . When the cam is driven to rotate, the retracting means and the unlocking means are operated. When the retracting means is operated by the cam, the latch is forcibly rotated from the half latch position to the full latch position. When the unlocking means is actuated by the cam, the locking by the locking means for restricting the position of the latch to the full latch position is released, and the latch is urged and returned to the position for opening the locking portion. The main body of the door locking / unlocking device configured as described above is provided at one of the center position of the front end portion of the door body in the vehicle width direction length or the vehicle main body corresponding to the position. Accordingly, since the cam is arranged so as to have a rotation axis parallel to the rotation axis of the latch, the cam and the latch are compactly arranged so that their respective surfaces are parallel to each other, contributing to miniaturization of the device. it can. In addition, since the device body is disposed at the center position of the door body in the vehicle width direction or at the vehicle body corresponding to the position, the pulling force of the locking portion by the device acts evenly on the door body. Becomes As a result, the door can be closed reliably and stably.

According to the second aspect of the present invention, the rotation axis of the latch is disposed in a direction orthogonal to the door or the outer plate of the vehicle body. Therefore, as described in the first aspect, since the device can be made compact, it is possible to suppress a decrease in trunk capacity due to the provision of the device.

According to the third aspect of the present invention, the latch is disposed close to the door or the outer plate of the vehicle body. Therefore, it is possible to dispose the locking portion that locks to the latch at the end, so that the reduction in trunk capacity can be further suppressed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a rear perspective view of the vehicle 1. 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 has a base end rotatably supported so that a rotation axis L0 is parallel to the 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 attached 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. When the trunk door 2 is in a half door (half latch) state, the door closer device 3 is a device that forcibly pulls the striker 4 to a full latch 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 closed reliably and stably.

FIG. 2 is a plan view showing the entire structure of the door closer device 3, FIG. 3 is an exploded perspective view of each member of the door closer device 3 disassembled, and FIG. 4 is a plan view showing each member disassembled separately. FIG. 5 is a side view of the door closer device 3 in FIG. 2 as viewed from the X direction. In FIGS. 3 and 4, assembling action lines (dashed-dotted lines) are drawn for parts where the members are assembled to each other.

As shown in FIGS. 2 to 5, the door closer device 3 is provided with a plate-shaped casing 5 to which components such as a door lock mechanism of the device 3 are assembled. The casing 5 has an insertion passage 6 into which the striker 4 is inserted. The casing 5 is fixed by screws or the like so that the insertion passage 6 is at the center position P and is parallel to the trunk door 2 as shown in FIG. As shown in FIG. 5, a support shaft 7 as a rotation shaft is provided in the vicinity of the insertion passage 6 in a direction perpendicular to the casing 5. A substantially disk-shaped latch 8 is rotatably provided on the support shaft 7, and is urged clockwise in FIG. 2 by a spring (not shown).
The position of the latch 8 is regulated by a stopper 9 in the biasing direction. In the present embodiment, as shown in FIG. 2, the state in which the position of the latch 8 abuts on the stopper 9 and is regulated is the unlocked position of the latch 8 in which the striker 4 is released from the restraint by the latch 8. Also, latch 8
Are arranged parallel to and close to the trunk door 2 as shown in FIG.

The latch 8 is formed in a two-stage structure in which the cross section is stepped and the center is thicker, and has two outer peripheral surfaces on the upper and lower stages. On the outer peripheral surface on the lower side of the latch 8, a concave portion 8 a for restraining the striker 4, a locking surface 8 b which is locked at a full latch position, and a locking surface 8 which is locked at a half latch position.
c is formed. An engagement groove 8 d is formed on the outer peripheral surface on the upper side of the latch 8. Each locking surface 8b, 8c
The engagement groove 8d is located closer to the insertion passage 6 side (substantially rightward of the support shaft 7 in FIG. 2) with respect to the rotation center of the latch 8 supported by the support shaft 7.

As shown in FIG. 5, a support shaft 10 is provided perpendicularly to the casing 5 near the passage 6 on the opposite side of the support shaft 7 with respect to the insertion passage 6 therebetween. . The first ratchet 1 as a locking means is provided on the support shaft 10.
One end is supported so that 1 can rotate. This first
The ratchet 11 is urged by a twist spring (not shown) in a direction (counterclockwise direction in FIG. 2) in contact with the outer peripheral surface of the latch 8. The other end of the first ratchet 11 has a latch surface 11 a that engages with the locking surfaces 8 b and 8 c of the latch 8. Here, when the latch surface 11a of the first ratchet 11 engages with the locking surface 8c of the latch 8, the latch 8 is restricted to the half-latch position. When the latch surface 11a engages with the locking surface 8b of the latch 8, the latch 8 is restricted to the full latch position. At the other end of the first ratchet 11, a lock pin 11b constituting lock release means is provided upright.

A drive cam 12 as a substantially U-shaped cam sharing the latch 8 and the support shaft 7 is disposed on the upper surface side (the front side in FIG. 2) of the latch 8. One end of the drive cam 12 is rotatably supported by the support shaft 7. A support shaft 13 is inserted into the other end of the drive cam 12 in a direction perpendicular to the casing 5. One end of a link 14 is rotatably connected to the support shaft 13 on the upper surface side of the drive cam 12. The link 14 is shown in FIGS.
12 to 12 are drawn in a straight line for convenience of explanation.
In the present embodiment, as shown in FIGS. 3 and 4, it is formed of a curved plate material. The other end of the link 14 is rotatably connected to a connection pin 15 a fixed to a position near the outer peripheral portion of the rotating body 15. The rotating body 15 is fixed so as to be integrally rotatable with an output shaft 16 that is drivingly connected to an electric motor M as a driving source. The electric motor M is a power source of the door closer device 3 and rotates the rotating body 15 fixed to the output shaft 16 only in one direction (in the present embodiment, counterclockwise in FIG. 2).

The position of the rotating body 15 shown in FIG. 2 is the initial position, and when the trunk door 2 is open, the rotating body 1
5 is always located at the initial position. Further, the position of the rotating body 15 shown in FIG. 8 is the home position position, and when the trunk door 2 is completely closed (full latch state), the rotating body 15 is always located at the home position position. When the rotating body 15 is disposed at these two positions,
The position of the rotating body 15 is detected by a microswitch or the like (not shown).

Here, when the latch 8 is in the half-latch position (half-latch state), the position (state) is detected by a microswitch or the like (not shown). Based on the detection of this position, the electric motor M is driven to rotate the rotating body 15 from the initial position to the home position. When the trunk door 2 is completely closed (fully latched state), the electric motor M responds to an opening command of a driver's seat opener switch or a remote control switch (both not shown) for opening the door 2. Driven,
The rotator 15 is rotated from the home position to the initial position. In a state where the rotating body 15 is arranged at these two positions, the drive cam 12 is arranged at the neutral position.

As shown in FIG. 5, on the lower surface side of the drive cam 12, a second ratchet 17 as a retracting means is arranged at substantially the same height as the upper stage of the latch 8. One end of the second ratchet 17 is connected to the drive cam 12 so as to be rotatable about the support shaft 13. The support shaft 13 has a spacer 18 interposed between the second ratchet 17 and the drive cam 12. 2nd ratchet 17
On the other end side (free end side), a locking piece 17a for engaging with an engaging groove 8d formed on the upper side of the latch 8 is formed. In addition, a locking pin 17b is provided upright at the free end of the second ratchet 17.

The fork 19 is disposed at substantially the same height as the spacer 18 and is supported by the support shaft 10 coaxially with the first ratchet 11. The fork 19 is provided with a spring (not shown) which is urged in a counterclockwise direction in FIG. In the vicinity of the support shaft 10 of the fork 19, a locking pin 19a that abuts on the outer peripheral surface of the drive cam 12 is provided upright. The fork 19 has an arc-shaped guide groove 19b having an open end.
Are formed. The guide groove 19b is provided in the second ratchet 1
7 is received and guided. Since the fork 19 is urged in the counterclockwise direction in FIG. 2, the second ratchet 17 is
The latch piece 17a is pressed against the inner peripheral surface of the latch b so as to come into contact with the upper peripheral surface of the latch 8 on which the engaging groove 8d is formed.

The fork 19 has an operation arm 19.
c is formed, and a locking portion 20a formed at one end of the rod 20 is locked to the operation arm 19c. Rod 2
A key cylinder 21 that is manually operated to open the trunk door 2 is connected to the other end of the “0”. An operation detection switch 21a is provided near the key cylinder 21.
The detection switch 21a detects a key opening operation of a key in the key cylinder 21.

When the key cylinder 21 is opened by a key, the rod 20 is pulled rightward in FIG.
The fork 19 in which the locking portion 20a is locked to the operation arm 19c is rotated clockwise in FIG. When the fork 19 rotates clockwise irrespective of the action of the rod 20, the operation arm 19c is separated from the locking portion 20a of the rod 20.

When the operation detection switch 21a detects the opening operation of the key in the key cylinder 21, the rotating body 15 is returned to the initial position if the rotating body 15 is not located at the initial position. The electric motor M is rotated in a counterclockwise direction. When the rotating body 15 is located at the initial position, the electric motor M does not rotate even if the operation detection switch 21a detects a door opening operation.

Next, the operation of the door closer 3 configured as described above will be described with reference to FIG. 2 and FIGS. First, the operation of the door closer device 3 when the trunk door 2 shifts from the open state to the closed state will be described. When the trunk door 2 is open, the rotating body 15 is located at an initial position shown in FIG.

If, for example, a sufficient force is not applied when closing the trunk door 2 and the latch 8 pushed by the striker 4 inserted into the insertion passage 6 is turned only up to the half-latch position, the first ratchet In 11, the latch surface 11 a is engaged with the locking surface 8 c of the latch 8. That is, as shown in FIG. 6, the position of the latch 8 is restricted to the half-latch position, and the trunk door 2 enters the half-door state (half-latch state). In this state,
The locking piece 17a of the second ratchet 17 is engaged with the engaging groove 8d of the latch 8.

When the latch 8 is at the half-latch position, the electric motor M starts rotating based on the detection of the position of a microswitch (not shown) and moves the rotating body 15 from the initial position to the home position (see FIG. 8). Turn counterclockwise. With the rotation of the rotating body 15 in the counterclockwise direction, the drive cam 12 connected to the link 14 via the support shaft 13 rotates counterclockwise from the neutral position shown in FIG. Pivoted in the direction. Then, the second ratchet 17, which is also connected by the support shaft 13, forcibly rotates the latch 8 in the counterclockwise direction because the locking piece 17 a is engaged with the engaging groove 8 d of the latch 8. Move.

When the rotating body 15 reaches the position shown in FIG. 7, the first ratchet 11 moves to the latch surface 11 thereof.
a engages with the locking surface 8b of the latch 8. That is, the position of the latch 8 is restricted to the full latch position, and the trunk door 2 is completely closed (full latch state). Therefore, the trunk door 2 is provided with the door closer 3
Automatically closed completely from the half-door state.

Even when the latch 8 is in the full latch position, as described above, the electric motor M continues to rotate and rotates the rotating body 15 counterclockwise to the home position shown in FIG. When the rotating body 15 reaches the home position, the electric motor M stops rotating based on position detection of a microswitch or the like (not shown).

In FIG. 2, when a sufficient force is applied when closing the trunk door 2, the latch 8 passes through the half-latch position with the striker 4 restrained, and Position is restricted to the full latch position. At this time, when the latch 8 has passed the half-latch position, the electric motor M moves the rotating body 15 from the initial position to the home position (see FIG. 8) based on the detection of the position of a microswitch or the like (not shown) as described above. Turn counterclockwise.

Next, the operation for shifting the trunk door 2 from the closed state to the open state will be described. When the trunk door 2 is completely closed (full latch state), the rotating body 15
Are arranged at the home position shown in FIG.

In response to an open command such as a driver's seat opener switch or a remote control switch for opening the door 2, the electric motor M starts to rotate and moves the rotating body 15 from the home position to the initial position (see FIG. 2). Rotate counterclockwise until With the rotation of the rotating body 15 in the counterclockwise direction, the drive cam 12 connected to the link 14 by the support shaft 13 is rotated clockwise in FIG. 8 from the neutral position, and the outer peripheral surface thereof is forked. 19 locking pins 19
a, and rotates the fork 19 clockwise about the support shaft 10. When the fork 19 rotates clockwise, as shown in FIG. 9, the outer peripheral surface thereof comes into contact with the locking pin 11b of the first ratchet 11, and the first ratchet 11 is rotated clockwise about the support shaft 10. To rotate.

When the driving cam 12 rotates the first ratchet 11 clockwise through the fork 19 with the rotation of the rotating body 15, the latch of the first ratchet 11 is moved as shown in FIG. Surface 11a is latch 8
From the locking surface 8b. At this time, since the locking pin 17b is guided by the guide groove 19b of the fork 19, the second ratchet 17 is separated from the second ratchet 17 to a position where the second ratchet 17 does not engage with the engaging groove 8d of the latch 8 with the rotation of the fork 19. Be placed. As a result, the first ratchet 11
When the latch between the latch 8 and the latch 8 is released, the latch 8 is rotated and returned clockwise in FIG. That is, it is regulated at the unlock position. Thus, the striker 4 is released from the restraint by the concave portion 8a of the latch 8, and the lock of the trunk door 2 is released.

Even when the latch 8 returns to the unlock position, the electric motor M continues to rotate as described above, and rotates the rotating body 15 counterclockwise to the initial position shown in FIG. . When the rotating body 15 reaches the initial position, the electric motor M stops rotating based on the detection of the position of a not-shown microswitch or the like.

The trunk door 2 shown in FIG.
Is completely closed (full latch state), it is possible to unlock the trunk door 2 by opening the door of the key in the key cylinder 21.

When the key cylinder 21 is operated to open the door with the key, the rod 20 is pulled to the right in the drawing, and the operation arm 1 is moved.
The fork 19 in which the locking portion 20a is locked to 9c is rotated clockwise in FIG. Then, as shown in FIG. 11, the outer peripheral surface of the fork 19 comes into contact with the locking pin 11 b of the first ratchet 11, and rotates the first ratchet 11 clockwise around the support shaft 10.

With the rotation of the fork 19, FIG.
As shown in (1), the latch surface 11a of the first ratchet 11 comes off the locking surface 8b of the latch 8. At this time, as described above, since the locking pin 17b is guided by the guide groove 19b of the fork 19, the second ratchet 17
It is arranged in a state where it is separated to a position where it does not engage with d. As a result, when the latch between the first ratchet 11 and the latch 8 is released, the latch 8 pivots and returns clockwise,
It is regulated at the lock release position in contact with the stopper 9.

The operation detection switch 21a shown in FIG.
Detects a key opening operation. At this time, as shown in FIG. 11 and FIG. 12, since the rotating body 15 is located at the home position,
The electric motor M is arranged at the initial position by the counterclockwise rotation of the electric motor M based on the detection of 1a.

In this way, the striker 4 is
a, and the lock of the trunk door 2 is also released by opening the door of the key in the key cylinder 21.

When the power supply to the door closer device 3 is cut off and the operation becomes inoperable, the door closer device 3 enters the half-latched state shown in FIG. It is possible to open 2.

The fork 19 is rotated clockwise through the rod 20 based on the operation of opening the door of the key in the key cylinder 21. Then, the outer peripheral surface of the fork 19 abuts on the locking pin 11b of the first ratchet 11, and rotates the first ratchet 11 clockwise about the support shaft 10.

With the rotation of the fork 19, the first
The latch surface 11a of the ratchet 11 is
c. At this time, the second ratchet 1
7, the locking pin 17b is connected to the guide groove 19 of the fork 19.
b, the locking piece 17a is released from engagement with the engagement groove 8d of the latch 8 with the rotation of the fork 19. As a result, when the latch between the first ratchet 11 and the latch 8 is released, the latch 8 pivots and returns in the clockwise direction, and is restricted at the lock release position in contact with the stopper 9.

In this manner, the striker 4 is released from the restraint by the recess 8a of the latch 8 by opening the door of the key in the key cylinder 21, and the trunk door 2 is released from the half-latched state and can be opened.

The door closer device 3 recognizes the open / closed state of the trunk door 2 when power is supplied to the device 3 again, and automatically returns the rotating body 15 to an arrangement position suitable for the state. It is further preferable to provide a controller for controlling the electric motor M as described above. With this configuration, when power is supplied to the device 3 again, the device 3 can reliably match the open / closed state of the trunk door 2 with the arrangement position of the rotating body 15, The discomfort of the operator with respect to the door opening / closing operation can be reduced.

As described in detail above, according to the present embodiment, the following effects can be obtained. (1) The door closer device 3 is attached to the door 2 so that the insertion passage 6 into which the striker 4 is inserted is located at the center position P of the length H of the trunk door 2 in the vehicle width direction. Then, since the door closer device 3 is arranged at the center position P of the length H of the trunk door 2 in the vehicle width direction, the pulling force of the striker 4 by the device 3 causes the trunk door 2 to retract.
Will work equally. Therefore, the door closer 3 of the present embodiment can close the trunk door 2 reliably and stably.

(2) Since the driving cam 12 and the latch 8 are coaxially rotatable by the common support shaft 7, the driving cam 12 and the latch 8 are compactly arranged in a state where the respective surfaces of the driving cam 12 and the latch 8 are overlapped. Can be arranged. Therefore, the door closer device 3 can be further reduced in size as compared with a conventional device employing a layout in which the respective surfaces of the latch 53 and the rotating plate 58 are orthogonal to each other as described in the related art.

(3) In addition, the door closer 3 has its support shaft 7 arranged in a direction orthogonal to the trunk door 2. Therefore, as described in the above (2), the door closer device 3 can be made compact, so that a reduction in trunk capacity can be suppressed.

(4) The latch 8 provided in the door closer device 3 is arranged at a position close to the trunk door 2. Then, the striker 4 restrained by the latch 8 can be disposed at the end. Therefore, a reduction in trunk capacity can be further suppressed.

The present invention is not limited to the above-described embodiment, but may be embodied as follows 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 attached door 2.

(2) In the above embodiment, the door closer 3 is moved to the center position P of the length H of the trunk door 2 in the vehicle width direction.
And the latch 8 is arranged at a position close to the door 2 and its rotation axis (support shaft 7) is arranged in a direction orthogonal to the door 2, but at least the door closer 3 is located at the center position. What is necessary is just to arrange in P.

(3) In the above embodiment, the latch 8 and the drive cam 12 are coaxially arranged by the common support shaft 7. However, if the respective rotation axes are substantially parallel, the coaxial is used. It is not limited to above.

(4) In the above embodiment, the rotating body 15 is limited to a disk-shaped one, but the shape is not limited to this.
Any configuration that can take out a circular motion is sufficient. For example, a rod-shaped member such as a crank connected to the output shaft 16 may be used.

[0058]

As described in detail above, according to the present invention,
In a locking / unlocking device that performs the operation of retracting the half latch from the full latch to the full latch and the operation of unlocking the door by using a single drive source, the size of the device is reduced, and the mounting position of the device with respect to the vehicle is taken into consideration. Thus, it is possible to provide a door locking / unlocking device capable of closing the door reliably and stably.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a vehicle according to an embodiment.

FIG. 2 is a plan view showing the door closer device.

FIG. 3 is an exploded perspective view showing the door closer device.

FIG. 4 is an exploded plan view showing constituent members of the door closer device.

FIG. 5 is a side view as viewed in the direction X in FIG. 2;

FIG. 6 is a plan view for explaining the operation of the door closer device.

FIG. 7 is a plan view of the same.

FIG. 8 is a plan view of the same.

FIG. 9 is a plan view of the same.

FIG. 10 is a plan view of the same.

FIG. 11 is a plan view of the same.

FIG. 12 is a plan view of the same.

FIG. 13 is a side view of a conventional door closer device.

14A to 14C are plan views showing various states of a latch.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 1a ... Trunk part, 2 ... Trunk door as door body, 3 ... Door closer device as locking / unlocking device, 4
... A striker as a locking portion, 7 a support shaft as a rotating shaft, 8 a latch, 11 a first ratchet as a locking means, 11 b a locking pin constituting a locking release means, 12.
Driving cam as a cam, 16 ... output shaft, 17 ... second ratchet as a retracting means, H ... length in the vehicle width direction, L0
... Rotating shaft, M ... Electric motor as drive source, P ... Center position.

Claims (3)

[Claims] 1. A base end of a vehicle (1) is rotatable with respect to a trunk portion (1a) of the vehicle (1) so as to be a rotation axis (L0) parallel to a vehicle width direction of the vehicle (1). A door locking and unlocking device which is supported and is opened and closed with its rotation axis (L0) as a fulcrum, wherein a drive source (M) capable of rotationally driving an output shaft (16); Locking part (4) for locking in a closed state
A latch (8) rotatably supported in a position where the latch (8) can be disengaged from the engagement portion (4) at a position where the latch (8) can be disengaged; A locking means (11) for restricting a position between a latch position and a full latch position; and
A retracting means (17) for rotating from this position to the full latch position, and an unlocking means (11) for releasing the locking by the locking means (11) for regulating the position of the latch (8) to the full latch position.
b) and a rotation axis parallel to the rotation axis (7) of the latch (8), the rotation means being driven by the drive of the drive source (M), and the retraction means (17). ) And a cam (12) for actuating the lock release means (11b). The device (3) has a main body having a length (H) in a vehicle width direction at a front end portion of the door body (2). A door locking / unlocking device provided at one of a center position (P) and the vehicle (1) main body corresponding to the position (P). 2. The vehicle according to claim 1, wherein a pivot axis of the latch is arranged in a direction orthogonal to the door body or an outer plate of the vehicle body. 2. The door locking and unlocking device according to claim 1. 3. The door (2), wherein the latch (8) is
The door locking / unlocking device according to claim 2, wherein the vehicle (1) is arranged close to an outer plate of the main body.