JPH116346A - Locking/unlocking device of door body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a miniaturized locking/unlocking device of a door body, by which the pulling-in motion from the half-latch condition to the full-latch condition and the unlocking motion of the door body can be operated by one shared driving source and further, noise generated from the device can be prevented. SOLUTION: A drive cam 12 moved to swing in accordance with the rotary movement of an electric motor is rotatably supported by a pivot 7 used in common for a latch 8 engaging with a striker to fix a trunk door in the closed condition. The cam 12 pushes the latch 8 positioned in the half-latch position to the full-latch position in the swinging motion through the second ratchet 17 and unfix the latch 8 positioned at the full-latch position by pushing out the first ratchet 11 through a fixing pin 11b. The collision parts A1-A3 where the latch 8 and the first ratchet 11 collide with each other are covered with a resin material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile, which detects that a door such as a side door or a trunk door is in a half-latch (half-door) state and forcibly closes the door to a full-latch state. The present invention relates to a door locking and unlocking device such as a door closer 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.

[0003] In order to solve such a problem, there is known a door closer device that forcibly closes the door to a full latch state when it detects that the door is a half latch. Normally, a door closer device has two functions: an unlocking function for unlocking a door; and a function for forcibly pulling a latch from a half latch position to a full latch position.
Conventionally, these functions are individually controlled using two actuators.
Therefore, there has been 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 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 door lock mechanism 51 incorporated 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-latch position shown in FIG. 14 (a) even when the striker 52 hits, and the pawl (ratchet) 55 is locked. The position is regulated. If the force applied when closing the door is relatively strong, the striker 52
The latch 53 is completely rotated to the full latch position shown in FIG.
5 is locked and 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.

The pole (ratchet) 55 is connected to the latch 5
When the latches 3 are locked in the half latch position and the full latch position, they collide with each other and generate a collision sound. The generation of the collision noise has been a major factor in generating the noise of the door closer device 56.

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. It is an object of the present invention to provide a door locking / unlocking device that can reduce the size of the locking / unlocking device and can suppress generation of noise from the device.

[0011]

According to a first aspect of the present invention, there is provided a drive source in which an output shaft is rotatably driven, and a driving source which can be engaged with a locking portion for locking a door in a closed state. A latch rotatably supported in a state where the latch is biased in a direction of releasing the engagement with the locking portion, and a latch that locks the latch and regulates a position between a half latch position and a full latch position. Stopping means, when the latch is arranged in a half-latch position,
A retracting means for rotating the latch from the full latch position to the full latch position; an unlocking means for unlocking the latch by a locking means for restricting the latch to the full latch position; and a rotation parallel to the rotation axis of the latch. A cam that is arranged to have a shaft, is driven to rotate based on the drive of the drive source, and operates the retracting unit and the unlocking unit. On the other hand, the gist is that a collision portion where the latch and the locking means collide with each other is formed or covered with resin.

According to a second aspect of the present invention, the latch and the locking means covered with resin are formed of metal. The gist of the invention described in claim 3 is that the whole body of the latch and the locking means is formed of resin.

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 retraction means is actuated by the cam, the latch is forcibly rotated from the half latch position to the full latch position, and the locking means locks the latch to regulate the position to the full latch position. When the unlocking means is actuated by the cam, the locking by the locking means for locking the latch and restricting the position to the full latch position is released, and the latch is urged and returned to the position for opening the locking portion. Then, at least one of the latch and the locking means operating as described above, at least a collision portion where the latch and the locking means collide with each other is formed or covered with resin. 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 portion where the latch and the locking means collide with each other is formed or covered with resin, it is possible to reduce the collision noise generated by collision with each other. As a result, generation of noise generated from the device can be suppressed.

According to the second aspect of the present invention, the latch and locking means covered with resin are formed of metal. Therefore, the strength of the latch and the locking means is not reduced.

According to the third aspect of the present invention, the entire body of the latch and locking means is formed of resin. Therefore,
It does not increase the number of manufacturing steps for the latching and locking means.

[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.

In this embodiment, the latch 8 and the first
The ratchet 11 is made of a metal material, and is partially formed with resin coating portions C1 to C3 as shown in FIGS.

The resin coating C1 formed on the latch 8
The first ratchet 11 covers the collision portion A1 on the outer peripheral surface that collides when the first ratchet 11 engages with the locking surface 8c to restrict the latch 8 to the half-latch position. The resin covering portion C2 formed on the latch 8 covers a collision portion A2 on the outer peripheral surface that collides when the first ratchet 11 engages with the locking surface 8b and regulates the latch 8 to the full latch position. On the other hand, the resin coating portion C3 formed on the first ratchet 11
When it engages with each of the locking surfaces 8b and 8c, it covers the collision portion A3 at the tip end that collides with the latch 8. By these resin coating portions C1 to C3, a collision sound generated at the time of collision between the latch 8 and the first ratchet 11 is reduced.
In this case, since the resin coating portions C1 to C3 are formed on both the latch 8 and the first ratchet 11, the noise reduction effect is greater than when the resin coating portions are formed on one of them.

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 at the half-latch position (half-latch state), the position (state) is detected by a microswitch (not shown) or the like. 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 disposed at substantially the same height as the upper side 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. In the present embodiment, a resin washer 17c is attached to the locking pin 17b of the second ratchet 17.

The fork 19 is arranged at substantially the same height as the spacer 18 and is supported coaxially with the first ratchet 11 by the support shaft 10. 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, and accommodates and guides the resin washer 17c attached to the locking pin 17b. The fork 19 is urged in the counterclockwise direction in FIG.
The resin washer 17c attached to the locking pin 17b is pressed against the inner peripheral surface of the guide groove 19b, and the locking piece 17a is moved to the upper outer peripheral surface where the engaging groove 8d of the latch 8 is formed. It will be biased to abut. Further, the resin washer 17c smoothly comes into sliding contact with the guide groove 19b of the fork 19, and the occurrence of sliding noise during the sliding contact is suppressed.

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 operated by a key to open the door, 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 operation of opening the door of the key in the key cylinder 21, if the rotating body 15 is not located at the initial position, the rotating body 15 is returned to 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 device 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 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. At this time, the first ratchet 11 is configured such that the resin coating portion C3 shown in FIGS.
Collide with 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. At this time, in the first ratchet 11, the resin coating portion C3 shown in FIGS. 3 and 4 collides with the resin coating portion C2 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 completely closed from the half-door state automatically by the door closer device 3.

Even when the latch 8 is at 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 opening command such as a driver's seat opener switch or a remote control switch for opening the door 2, the electric motor M starts rotating and drives 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 latched as shown in FIG. Surface 11a is latch 8
From the locking surface 8b. At this time, the second ratchet 17 engages with the engaging groove 8 d of the latch 8 with the rotation of the fork 19 because the resin washer 17 c attached to the locking pin 17 b is guided by the guide groove 19 b of the fork 19. They are placed apart from each other until they do not match. As a result, when the latch between the first ratchet 11 and the latch 8 is released, the latch 8 is pivotally returned in the clockwise direction in FIG. 9, that is, at the unlocked 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 unlocked position, as described above, the electric motor M continues to rotate 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 by a key to open the door, the rod 20 is pulled to the right in the drawing, and the operating 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 resin washer 17c attached to the locking pin 17b is guided by the guide groove 19b of the fork 19, the second ratchet 17 engages with the latch 8 as the fork 19 rotates. It is arranged in a state where it is separated to a position where it does not engage with the mating groove 8d. 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.

The operation detecting 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 manner, 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 is brought into the half-latch state shown in FIG. It is possible to open 2.

The fork 19 is rotated clockwise through the rod 20 based on the key opening operation 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, by opening the door of the key in the key cylinder 21, the striker 4 is released from the restraint by the concave portion 8a of the latch 8, 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) Since the drive cam 12 and the latch 8 are coaxially and rotatably arranged by the common support shaft 7, the drive cam 12 and the latch 8 are compactly arranged with their respective surfaces superimposed on each other. Can be. 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.

(2) In the present embodiment, the resin coating portions C1 to C3 are formed on the collision portions A1 to A3 of the latch 8 and the first ratchet 11, respectively. Therefore, the latch 8
In addition, the collision noise generated by the first ratchet 11 is reduced, and the noise generated by the door closer device 3 can be suppressed.

(3) In addition, since the latch 8 and the first ratchet 11 forming the resin coating portions C1 to C3 are formed of a metal material, the strength of these members does not decrease.

(4) In the present embodiment, the resin washer 17c is attached to the locking pin 17b of the second ratchet 17. The resin washer 17c smoothly comes into sliding contact with the guide groove 19b of the fork 19, and suppresses the generation of sliding noise during the sliding contact. Therefore, it is possible to contribute to suppression of noise generated from the door closer device 3.

The present invention is not limited to the above embodiment, but may be embodied as follows without departing from the spirit of the invention. (1) In the above embodiment, the door closer 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 8 and the driving cam 12 are coaxially arranged by the common support shaft 7. However, if the respective rotation axes are substantially parallel to each other, they are coaxial. It is not limited to above.

(3) In the above embodiment, the resin coating portion C
Although 1 to C3 are partially formed on the latch 8 and the first ratchet 11 made of a metal material, the entire latch 8 and the first ratchet 11 may be covered with a resin. In this case, the latch 8 and the first ratchet 11 are not limited to a metal material, and need only be a hard member that can withstand the operation of the door closer device 3.

Although the resin coating portions C1 to C3 are formed on both the latch 8 and the first ratchet 11, they may be formed on at least one of the latch 8 and the first ratchet 11.

Further, the latch 8 and the first ratchet 11
May be formed of a hard resin material that can withstand the operation of the door closer device 3. By doing so, the step of coating the latch 8 and the first ratchet 11 with resin can be omitted.

(4) In the above embodiment, the resin coating portion C
Although 1 to C3 are formed on the latch 8 and the first ratchet 11, a resin covering portion may be formed on other components constituting the door closer device 3.

(5) In the above embodiment, the resin washer 17c is attached to the locking pin 17b of the second ratchet 17, but it is not particularly necessary to attach it. (6) In the above-described embodiment, the rotating body 15 is limited to a disk-shaped member. However, the shape is not limited to this, and any structure 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.

[0063]

As described in detail above, according to the present invention,
In a locking / unlocking device that performs a retracting operation from a half latch to a full latch and an unlocking operation of a door body by a single drive source, the size of the device is reduced, and the generation of noise from the device is suppressed. A door locking / unlocking device can be provided.

[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]

2 ... trunk door as a door body, 3 ... door closer as a locking and unlocking device, 4 ... striker as a locking part,
Reference numeral 7 denotes a support shaft as a rotating shaft; 8 a latch; 11 a first ratchet as a locking means; 11b a locking pin constituting a locking release means; 12 a driving cam as a cam; 16 an output shaft. , 17... The second ratchet as the retracting means, A
1 to A3: collision site; M: electric motor as a driving source.

Claims (3)

[Claims] 1. A position in which an output shaft (16) can be engaged with a driving source (M) capable of rotationally driving and a locking portion (4) for locking a door body (2) in a closed state. A latch (8) rotatably supported in a state of being urged in a direction to release the engagement with the locking portion (4); and a half-latch position by locking the latch (8). When the latching means (11) for regulating the position to the full latch position and the latch (8) is arranged at the half latch position,
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), wherein at least one of the latch (8) or the lock means (11) is engaged with the latch (8). Stopping means (1
(1) A door locking / unlocking device characterized in that the collision portions (A1 to A3) where each of them collides with each other are formed or covered with resin. 2. The door locking / unlocking device according to claim 1, wherein the latch (8) and the locking means (11) covered with resin are formed of metal. 3. The latch (8) and the locking means (1).
The door locking / unlocking device according to claim 1, wherein the entire body of (1) is formed of resin.