JP3390650B2 - 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 a door body such as a door closer device for detecting a state of closing a door body such as a side door or a trunk door in an automobile and forcibly closing the door body to a full latch state. The present invention relates to a lock device.

[0002]

2. Description of the Related Art For example, when a vehicle door is closed, a large amount of force is required to close the door because a weather strip reaction force, a lock resistance, etc. act immediately before the door is fully closed. Therefore, there is known a door closer device that forcibly closes the door to the fully latched state when the closed state of the door is detected. Normally, a door closer device has two functions: a lock release function for unlocking the door and a function of forcibly pulling the latch from the closing start position to the full latch position. The door closer device controls these functions individually by using two actuators. Therefore, the door closer device is large in size and the manufacturing cost thereof is high.

Therefore, for example, Japanese Patent Publication No. 5-27748 discloses a door closer device in which two functions are controlled by one actuator to achieve miniaturization and cost reduction.

[0004]

By the way, in a door closer device in which these two functions are controlled by one actuator, the actuator is stopped when the latch is forcibly pulled from the closing start position to the full latch position. 2 and position detection sensors such as two micro switches have been used to determine the timing for releasing the lock and again for stopping the actuator at the original initial position. Therefore,
The door closer device must secure a space for assembling the two position detection sensors, which is an obstacle to further miniaturization of the door closer device.

In the door closer device, the two position detecting sensors are used when the driving power is cut off for some reason during the operation of the actuator and the power is supplied again after the actuator is temporarily stopped. However, it was not possible to determine whether the operation before stopping the actuator was the pulling operation to the full latch position or the operation for unlocking. As a result, an erroneous operation occurs in which the actuator performs an operation for unlocking where the pull-in operation should be restarted, and, conversely, causes the actuator to retract where the lock-release operation should be restarted.

The present invention has been made in order to solve the above problems, and a first object thereof is to perform a pulling operation from a closing position to a full latch position and a door unlocking operation. It is an object of the present invention to provide a locking / unlocking device for a door body, which can reduce the number of parts of the device, reduce the size, and reduce the number of assembling steps in the locking / unlocking device that shares the actuator.

A second object is to reduce the size of the device,
(EN) Provided is a door locking / unlocking device capable of detecting the operating state of an actuator at each moment and accurately restarting the operation even when, for example, the power is cut off and the actuator is temporarily stopped and then the power is supplied again. Especially.

[0008]

According to a first aspect of the present invention, the locking portion is introduced from an original position where the locking portion for locking the door body in the closed state can be introduced, and the locking portion is introduced. A latch supported rotatably against the urging force in the direction of engaging and releasing the engagement with the introduction of the portion, and the latch at the closing start position to engage the latch from the closing start position. Retraction means for rotating to the full latch position,
When the latch is rotated to the full-latch position, it is engaged by the urging force urged in the latch direction to restrict the position of the latch at the full-latch position, and the latch is operated by the urging force. Lock releasing means for releasing the locking by the locking means that regulates the latch to the full latch position so as to return to the original position where it can be introduced, and rotation of the latch parallel to the rotation axis. A drive cam that is arranged to have a shaft and that operates the retracting means and the unlocking means, a rotating body that is rotated by a drive motor, and the rotating body that is provided in parallel with the rotation axis of the latch. Provided between the rotating body and the drive cam, the output shaft being fixed so as to be integrally rotatable, and rotationally driving the drive cam based on the rotation of the rotating body to release the locking means and the lock. means In a door locking / unlocking device including a link mechanism for operating, a pattern provided on a rotation surface of the rotating body for detecting a rotational position of the rotating body, and the rotation detecting the pattern And a detection member for generating a detection signal for detecting the rotational position of the body, wherein the rotating body is integrally assembled with the drive motor in a case, and the detection member is arranged in the case. And the base end of the retracting means is
It is rotatably connected to the moving cam, and the above-mentioned
Second locking means having an engaging portion that engages with the
With the rotation of the latch due to the engagement of the parts, the engagement of the second locking means
So that the mating part engages with the latch at the closing start position
The second locking means is guided to the drive cam by guiding the engaging portion.
And the relative starting position, and the closing start position
From the full latch position to the
Equipped with a guide part to hold, the base end part is supported rotatably
The gist is that it is composed of an actuated lever .

According to a second aspect of the present invention, in the door locking / unlocking apparatus according to the first aspect, the pattern is made of a conductor formed in a predetermined shape, and the detection member is in sliding contact with the pattern. The point is to be a contactor.

The invention described in claim 3 is the invention according to claim 1 or 2.
In the door locking / unlocking device according to any one of the above items, the rotating body is a reduction gear that reduces the rotation of the drive motor.

[0011] According to a fourth aspect of the invention, the locking and unlocking device of a door member according to claim 1, wherein the rack
The gist of the invention is that the rotation axis of the H is coaxial with the rotation axis of the drive cam .

According to the first and fourth aspects of the invention, the rotating body is rotated by the drive motor, and the rotating surface is provided with a pattern. The detection member detects the pattern and generates a detection signal for detecting the rotational position of the rotating body. That is, the rotational position of the rotating body is detected by the pattern and the detection member, and the operating state of the device is detected based on the detection of the rotating position of the rotating body. Therefore, it is possible to configure without the need to assemble a plurality of position detection sensors, so that it is possible to reduce the number of parts of the device, downsize, and reduce the number of assembling steps. In addition, the rotating body is a drive motor in the case.
It is assembled together with the detection member inside the case
To be done. Therefore, the rotating body and the detection member are exposed to the outside.
It is possible to obtain a dustproof and waterproof effect.

According to the second aspect of the invention, the pattern is made of a conductor formed in a predetermined shape, and the contactor is in sliding contact with the pattern. Therefore, even if the power supplied to the device is cut off and the power is supplied again, the rotational position of the rotating body can be detected by the pattern and the contactor, and the operating state of the device can be detected. As a result, the operation of the device can be accurately restarted.

According to the third aspect of the present invention, since the rotating body is composed of a reduction gear that reduces the rotation of the drive motor, it is not necessary to provide a rotating body having a pattern. It is possible to reduce the number of parts, downsize, and reduce the number of assembling steps.

[0015]

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a rear perspective view of a vehicle 1. At the rear part of the vehicle 1, a trunk part 1a for accommodating a load is provided. A trunk door 2 as a door body is provided on the upper part of the trunk portion 1a, and the door 2 forms an accommodation space for loading a load. The trunk door 2 is rotatably supported at its base end, and has a shape in which the front end side (the rear end side of the vehicle 1) is bent downward in an L shape.

A door closer device 3 is attached to a front end portion of the trunk door 2 at a central position 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.

FIG. 2 is a plan view for explaining the entire structure of the door closer device 3, FIG. 3 is an exploded perspective view of the respective members of the door closer device 3, and FIG. 4 is an exploded perspective view of the respective members. The plan view shown in FIG. 5 is a side view of the door closer device 3 in FIG. 2 as seen from the X direction. Note that, in FIGS. 3 and 4, assembling action lines (dashed lines) are drawn to show the parts where the members are assembled together.

As shown in FIGS. 2 to 5, the base plate 5 of the door closer device 3 is formed with an insertion passage 6 into which the striker 4 is inserted. As shown in FIG. 5, a support shaft 7 as a rotating shaft is provided in the vicinity of the insertion passage 6 in a direction perpendicular to the base plate 5. Support shaft 7
A substantially disk-shaped latch 8 is rotatably supported by the.

The latch 8 is formed in a two-step structure in which its cross section is stepwise and the thickness near the center is thick, and has two outer peripheral surfaces on the upper side and the lower side. The outer peripheral surface of the lower side of the latch 8 is formed with a recess 8a for restraining the striker 4 and a locking surface 8b which is in a locked state at the full latch position. On the outer peripheral surface of the upper side of the latch 8, a locking surface 8c that is locked at the closing start position.
Are formed. The locking surfaces 8b and 8c are located closer to the insertion passage 6 side than the center of rotation of the latch 8 supported by the support shaft 7 (almost rightward of the support shaft 7 in FIG. 2). In the present embodiment, as shown in FIG. 2, the state where the latch 8 is in contact with the side wall 5a of the base plate 5 and the position of which is regulated is the original position of the latch 8 in which the striker 4 is released from the restraint by the latch 8. I am trying.

A support shaft 9 is provided on the opposite side of the support shaft 7 with the insertion passage 6 interposed therebetween, as shown in FIG.
Is provided in the vertical direction with respect to. A base end side of a first ratchet 10 serving as a locking means is rotatably supported on the support shaft 9.

The latch 8 and the first ratchet 10 have hook portions 8d and 10a for hooking a coil spring 11 thereon.
And the coil spring 11 is stretched between the hook portions 8d and 10a. The latch 8 and the first ratchet 10 are attracted to each other by the coil spring 11 thereof. Here, the latching portion 8d of the latch 8
Is arranged at a position offset in the counterclockwise direction in FIG. 2 from a straight line connecting the center of the support shaft 7 supporting the latch 8 and the hooking portion 10a of the first ratchet 10 in the original position of the latch 8. Has been done. Therefore, the latch 8 is biased in the clockwise direction in FIG. 2 by one coil spring 11, and the first ratchet 1
0 will be urged in the direction of contacting the outer peripheral surface of the latch 8 (counterclockwise direction in FIG. 2).

On the tip side of the first ratchet 10, there is a latch surface 10b that engages with the locking surface 8b of the latch 8. When the latch surface 10b engages with the locking surface 8b of the latch 8, the latch 8 is restricted to the full latch position.
Further, a locking pin 10c which constitutes a locking means is provided upright on the tip side of the first ratchet 10.

Further, in this embodiment, the latch 8 and the first ratchet 10 are made of a metal material, and
And as shown in FIG. 4, in the latch 8, each locking surface 8
Almost the entire surface is covered with a resin member 12 so that b and 8c are exposed, and in the first ratchet 10, the base end portion including the support shaft 9 portion is covered with the resin member 13. Therefore, when the latch 8 is rotated, the resin member 12 suppresses the sliding noise between the base plate 5 and the drive cam 14 described later. Further, when the first ratchet 10 is rotated, the resin member 13 suppresses the sliding noise of the base plate 5 and the actuating lever 22 described later.

Incidentally, by exposing the locking surfaces 8b and 8c of the latch 8, in the present embodiment, the latch surface 10b is provided.
Also, when the second ratchet 20 is engaged with the locking piece 20a, which will be described later, the mutual welding of the members by the resin is prevented.

Further, the resin member 12 covering the latch 8 is formed with a thick portion 12a at a portion of the recess 8a where the striker 4 collides, and the thick portion 12a buffers the striker 4 from colliding. The slit 12b is formed. Further, the resin member 12 has a thick portion 12c with respect to a portion that collides with the side wall 5a of the base plate 5.
Are formed.

That is, in the present embodiment, by covering the latch 8 and the first ratchet 10 with the resin members 12 and 13, respectively, the sliding noise with other components during the sliding is reduced. . Further, in this embodiment, the latch 8
By forming a thick portion 12a at a portion where the striker 4 collides with the resin member 12 that covers the striker 4 and further forming a slit 12b, the collision sound at the time of the collision of the striker 4 is suppressed and the side wall of the base plate 5 is formed. A thick portion 12c is formed in a portion that collides with 5a to suppress a collision sound when the latch 8 collides with the side wall 5a.

A substantially U-shaped drive cam 14 is arranged on the upper surface side of the latch 8 (front side of the drawing in FIG. 2) through the resin member 12. One end of the drive cam 14 is rotatably supported by the support shaft 7. Drive cam 14
A support shaft 15 is inserted into the other end of the support shaft 15 in a direction orthogonal to the base plate 5. The drive cam 1 is attached to the support shaft 15.
One end of a link 16 that constitutes a link mechanism is rotatably connected to the lower surface side of 4.

The other end of the link 16 is rotatably connected to one end of a connecting arm 17 that also constitutes a link mechanism by a connecting pin 17a. The connecting arm 17 includes an output shaft 1 of an actuator 18 whose drive source is a drive motor M.
It is fixed to 9 so as to be integrally rotatable. The drive motor M is a power source of the door closer device 3, and rotates the connecting arm 17 fixed to the output shaft 19 only in one direction (counterclockwise direction in FIG. 2 in the present embodiment). The actuator 18 is fixed to the base plate 5 with a screw (not shown).

Here, the connecting arm 1 shown in FIG. 2 (FIG. 6).
The position 7 is the home position when open, and when the trunk door 2 is open, the connecting arm 17 is always located at the home position when open. Further, the position of the connecting arm 17 shown in FIG. 8 is the closed home position position, and when the trunk door 2 is completely closed (full latch state), the connecting arm 17 is always arranged in the closed home position position. There is.

Further, when the connecting arm 17 is arranged at the two positions shown in FIG. 2 (FIG. 6) and FIG.
The drive cam 14 that is connected via the is disposed in the neutral position. Then, when the connecting arm 17 is rotated, the drive cam 14 is converted into a swinging motion that swings from the neutral position to the left and right.

As shown in FIG. 5, on the lower surface side of the drive cam 14, there is provided a second ratchet 20 which constitutes a drawing means.
Are arranged at substantially the same height as the upper side of the latch 8. The second ratchet 20 has a drive cam 14 at the base end thereof.
It is supported by a support shaft 21 so as to be rotatable and not interfere with the operation of the link 16.

The tip side (free end side) of the second ratchet 20
A locking piece 20a for engaging with the locking surface 8c formed on the upper side of the latch 8 is formed on the side. When this locking piece 20a engages with the locking surface 8c of the latch 8 as shown in FIG. 6, the latch 8 is restricted to the closing start position. Further, a driven pin 20b extending to the lower surface side (the back side of the paper surface of FIG. 2) is fixed to the tip portion of the second ratchet 20.

The actuating lever 22 which also constitutes the retracting means is coaxially supported by the support shaft 9 via the first ratchet 10 and the resin member 13. Operating lever 22
A hooking portion 22a for hooking one end of the coil spring 23 is formed by cutting and raising. The other end of the coil spring 23 is hooked on a hooking portion 5b formed by cutting and raising the base plate 5. The hook portion 5b is formed at a height that does not interfere with the operation of the operating lever 22. The actuating lever 22 is biased counterclockwise in FIG. 2 by the coil spring 23. In the vicinity of the support shaft 9 of the actuating lever 22, a locking projection 22b forming a locking releasing means that abuts the outer peripheral surface of the drive cam 14 is cut and raised.

An arcuate guide groove 22c is formed in the operating lever 22. The guide groove 22c accommodates and guides the driven pin 20b of the second ratchet 20. Since the operating lever 22 is biased in the counterclockwise direction in FIG. 2, the driven pin 20b of the second ratchet 20 is pushed against the inner peripheral surface of the guide groove 22c, and the locking piece 20a of the second ratchet 20 is latched by the latch 8. The engaging surface 8c is urged to come into contact with the outer peripheral surface on the upper stage side. Then, as shown in FIG. 6, when the latch 8 is arranged at the closing start position, the actuating lever 22 is rotated counterclockwise in FIG.
The locking piece 20a of the ratchet 20 is the locking surface 8c of the latch 8.
Is adapted to engage with. At this time, the locking piece 20a of the second ratchet 20 collides with the outer peripheral surface of the latch 8, but since the latch 8 is covered with the resin member 12,
The collision sound at the time of the collision is suppressed by the resin member 12.

An operating arm 22d is formed on the operating lever 22. This operation arm 22d has
A door handle (not shown) is connected. When the door handle is opened, the operating lever 22 is rotated clockwise in FIG.

A limit switch 24 is provided near the operating lever 22 on the base plate 5. In the limit switch 24, when the latch 8 is arranged at the closing start position and the operating lever 22 rotates counterclockwise, the mover of the switch 24 is tilted by the engaging projection 22e formed on the operating lever 22, The switch 24 is activated.

FIG. 10 shows the actuator 18. The actuator 18 detects the rotational position of the drive motor M as a drive source, the speed reduction mechanism 30 for decelerating the rotation of the motor M, and the connecting arm 17 that is integrally rotated by the output shaft 19 in the case 18a. The detection sensor 31 is installed as a unit. Case 18a
Has a mounting leg 18 for mounting on the base plate 5.
b is formed at three locations (only one is shown in FIG. 10, and the other two are arranged on the back surface side of the case 18a so as to straddle the output shaft 19). Then, the mounting leg 18b and two mounting legs (not shown) are fixed to the base plate 5 with screws, and the actuator 18 is integrally assembled to the plate 5.

The speed reduction mechanism 30 includes four speed reduction gears 33 to 36, which are sequentially gear-connected to a worm 32 fixed to the rotary shaft of the drive motor M. The output shaft 19 is fixed. To the reduction gear 36 to which the output shaft 19 is fixed, a plate 37 made of an insulating member is fixed to one circular surface 36a as a rotating surface, and a pattern 38 of a predetermined shape made of a conductor is formed on the plate 37. Has been done.

A substrate 39 is fixed inside the case 18a, and first to third contacts 40 to 42 as detecting members which are in sliding contact with the pattern 38 are fixed to the substrate 39. These first to third contacts 40 to 42 are arranged so as to contact the pattern 38 on the same straight line extending in the radial direction of the plate 37. Further, the first contactor 40 is in sliding contact with the outer peripheral portion of the pattern 38, the third contactor 42 is in sliding contact with the inner peripheral portion of the pattern 38, and the second contactor 41 is in contact with the pattern 38.
Sliding contact with the middle part of. In addition, the first and second contacts 40, 4
In the outer peripheral portion and the intermediate portion of the pattern 38 with which 1 is in sliding contact, the plate 37 made of an insulating member is exposed in a region of a predetermined angle. The inner peripheral portion of the pattern 38 with which the third contact 42 is in sliding contact is covered with a conductor over the entire circumference without exposing the plate 37.

Then, the pattern 38 is rotated by the plate 37 rotating together with the reduction gear 36, and the pattern 38 brings the first and second contactors 40 and 41 into conduction or non-conduction with the third contactor 42, Connecting arm 1
7 detection signals (SG1, SG
2), that is, the detection sensor 31 is configured.

Here, the reduction gear 3 in FIG. 2 (FIG. 6)
The arrangement of 6 is when the connecting arm 17 is arranged at the home position position when opened. At this time, the first
The contact 40 is brought out of conduction with the third contact 42 by the pattern 38, and the second contact 41 is brought into conduction with the third contact 42 via the pattern 38.

Further, the rotation of the connecting arm 17 (reduction gear 36) immediately after the open home position shown in FIG. 2 (FIG. 6) to the time before reaching the closed home position shown in FIG. In the moving region, the first and second contactors 40, 41 together form the third contactor 42 via the pattern 38.
And becomes conductive.

When the pivotal position of the connecting arm 17 (reduction gear 36) reaches the closed home position as shown in FIG. 8, the first and second contacts 40, 41 have the pattern 3 pattern.
Both of them become non-conductive with the third contact 42.

Further, the rotation of the connecting arm 17 (reduction gear 36) immediately after the closed home position position shown in FIG. 8 to the position before the open home position position shown in FIG. 2 (FIG. 6) is reached. In the moving region, the first contact 40 is brought into conduction with the third contact 42 through the pattern 38,
The second contactor 41 has the pattern 38 and the third contactor 42.
And becomes non-conductive.

In other words, the first contact piece is provided only when the connecting arm 17 (reduction gear 36) is arranged at the open home position position shown in FIG. 2 (FIG. 6) and the closed home position position shown in FIG. 40 is the third according to the pattern 38
It is in a non-conductive state with the contact 42. In addition, the connecting arm 17
In the rotation region from the rotation position including the open home position position shown in FIG. 2 (FIG. 6) to the time before the reduction gear 36 reaches the close home position position shown in FIG.
The second contact 41 has the third contact 42 through the pattern 38.
In the turning region from the turning position including the closed home position position shown in FIG. 8 to the position before reaching the open home position position shown in FIG. 2 (FIG. 6),
The second contactor 41 has the pattern 38 and the third contactor 42.
And becomes non-conductive.

Therefore, the first contactor 40 is replaced by the third contactor 42.
When the connection arm 17 (reduction gear 36) is in the non-conduction state, the rotational position of the connecting arm 17 (reduction gear 36) is set to the open home position position shown in FIG. 2 (FIG. 6) and the closed home position position shown in FIG. Detect that. Further, the second contact 41 is brought into conduction with the third contact 42, so that the connecting arm 17
It is detected that the (reduction gear 36) is at the front position of the closed home position position shown in FIG. 8 from the rotational position including the open home position position shown in FIG. 2 (FIG. 6), and the second contact 41 is detected. Becomes non-conductive with the third contact 42,
It is possible to detect that the connecting arm 17 (reduction gear 36) is at the front position of the open home position shown in FIG. 2 (FIG. 6) from the rotational position including the closed home position shown in FIG. ing.

FIG. 11 shows the electrical construction of the door closer device 3. The door closer device 3 is controlled by a closer control controller (hereinafter, simply referred to as a controller) 43 provided in the vehicle 1. The controller 43 includes a control circuit unit 44.

The first and second contacts 40, 41 constituting the detection sensor 31 are connected to the input ports P1, P2 of the control circuit section 44, respectively. In addition, the third contact 4
2 is grounded and the limit switch 24
Is connected to the input port P3. The limit switch 24 switches the input port P3 to the grounded state when it is not operated, and switches the input port P3 to the ungrounded state when it is operated. The input port P4 of the control circuit unit 44 is grounded via a door opening switch 45 such as a driver seat opener switch or a remote control switch for opening the trunk door 2.

When the first and second contacts 40, 41 are brought into conduction with the third contact 42 through the pattern 38, the contacts 40, 41 are grounded and the input ports P1, P2 are connected to each other. Ground level (L level) detection signal SG
1, SG2 are input. On the other hand, the first and second contacts 4
When 0 and 41 are brought out of conduction with the third contact 42 by the pattern 38, the contacts 40 and 41 are brought into a non-grounded state, and the input ports P1 and P2 are provided with a non-grounded level (H level) detection signal SG1. SG2 is input. Further, when the limit switch 24 is operating, the input port P3 is at a non-ground level (H level), and when not operating, the input port P3 is at a ground level (L level) operating signal SG3.
Is entered. When the door open switch 45 is turned on to open the trunk door 2, the ground level (L level) door open signal SG4 is input to the input port P4.

Further, the output port P of the control circuit section 44 is
An exciting coil 46b for switching the changeover switch 46a in the relay 46 is connected between 5 and P6.
Further, the changeover switch 46a is connected to the positive electrode of the drive motor M, and the negative electrode of the drive motor M is a positive temperature coefficient (PTC) as a protection circuit for the motor M.
rmistor) 47 and is grounded. When the exciting coil 46b is excited, the changeover switch 46a connects the positive electrode of the drive motor M to the battery B to supply battery power to the motor M, and when the exciting coil 46b is in the non-excited state, The positive electrode is grounded and the supply of battery power to the motor M is cut off.

Here, the connecting arm 17 (reduction gear 3
6) is located from the pivot position including the open home position position shown in FIG. 2 (FIG. 6) to the front position of the closed home position position shown in FIG. 8, the second contact element 41 has the third contact element 42. Therefore, the L-level detection signal SG2 is input to the input port P2 of the control circuit section 44. The control circuit unit 44, based on the L-level detection signal SG2 input to the input port P2,
It is detected that 7 (the reduction gear 36) is arranged in the rotation area.

At this time, when the pivotal position of the connecting arm 17 (reduction gear 36) is located at the open home position shown in FIG. 2 (FIG. 6), the first contactor 40 makes the third contact. Since it is not electrically connected to the child 42, the detection signal SG1 of H level is applied to the input port P1 of the control circuit section 44.
Is entered. The control circuit section 44 uses the input port P1.
Based on the H-level detection signal SG1 input to, it is detected that the connecting arm 17 (reduction gear 36) is located at the rotation position.

The connecting arm 17 (reduction gear 36)
2 is in a position before the open home position shown in FIG. 2 (FIG. 6) from the rotation position including the closed home position shown in FIG. 8, the second contact 41 is the third contact 42.
Therefore, the H level detection signal SG2 is input to the input port P2 of the control circuit section 44.
The control circuit section 44 receives the H signal input to the input port P2.
Based on the level detection signal SG2, the connecting arm 17
It is detected that the (reduction gear 36) is arranged in the rotation area.

At this time, when the rotating position of the connecting arm 17 (reduction gear 36) is located at the closed home position shown in FIG. 8, the first contact 40 is not in contact with the third contact 42. Because of the conduction state, the H level detection signal SG1 is input to the input port P1 of the control circuit unit 44. The control circuit unit 44 detects that the connecting arm 17 (reduction gear 36) is located at the rotating position based on the H-level detection signal SG1 input to the input port P1.

When the latch 8 is moved from the original position shown in FIG. 2 to the closing start position shown in FIG. 6,
The limit switch 24 is actuated, and the control circuit unit 44
An H-level actuation signal SG3 is input to the input port P3 of. The control circuit section 44 excites the exciting coil 46b based on the H-level operation signal SG3 input to the input port P3. When the exciting coil 46b is excited, the changeover switch 46a connects the positive electrode of the drive motor M to the battery B and supplies the battery power to the motor M.
That is, the controller 43 rotates the drive motor M, and rotates the connecting arm 17 arranged at the open home position together with the reduction gear 36 in the counterclockwise direction. At this time, the pattern 38 also rotates in the counterclockwise direction with the rotation of the reduction gear 36, and the first contactor 40 and the third contactor 42 are switched from the non-conductive state to the conductive state. That is,
The detection signal SG1 input to the input port P1 of the control circuit unit 44 changes from H level to L level.

When the rotating connecting arm 17 eventually reaches the closed home position shown in FIG. 8, the first contact 40 is brought out of conduction with the third contact 42. That is, the detection signal S input to the input port P1 of the control circuit unit 44
G1 changes from L level to H level. Control circuit unit 44
Turns the exciting coil 46b into a non-excited state based on the H-level detection signal SG1 input to the input port P1. When the exciting coil 46b is in the non-excited state, the changeover switch 46a grounds the positive electrode of the drive motor M to cut off the supply of the battery power to the motor M. That is, the controller 43 stops the rotation of the drive motor M.

When the door open switch 45 is turned on in this state, the L level door open signal SG4 is input to the input port P4 of the control circuit section 44. The control circuit unit 44, based on the L level door open signal SG4 input to the input port P4, operates in the same manner as the exciting coil 4 as described above.
Energize 6b. When the exciting coil 46b is excited,
The changeover switch 46a connects the positive electrode of the drive motor M to the battery B
To supply battery power to the motor M. That is, the controller 43 rotates the drive motor M to rotate the connecting arm 17 arranged at the closed home position together with the reduction gear 36 in the counterclockwise direction. At this time, as the reduction gear 36 rotates, the pattern 3
8 also rotates counterclockwise, and the first contactor 40 and the third contactor 42 are switched from the non-conducting state to the conducting state. That is, the detection signal SG input to the input port P1 of the control circuit unit 44
1 changes from H level to L level.

When the rotating connecting arm 17 reaches the home position position at the time of opening shown in FIG. 2, the first contact 40 is brought out of conduction with the third contact 42. That is, the detection signal S input to the input port P1 of the control circuit unit 44
G1 changes from L level to H level. Control circuit unit 44
Turns the exciting coil 46b into a non-excited state based on the H-level detection signal SG1 input to the input port P1. When the exciting coil 46b is in the non-excited state, the changeover switch 46a grounds the positive electrode of the drive motor M to cut off the supply of the battery power to the motor M. That is, the controller 43 stops the rotation of the drive motor M.

Next, the operation of the door closer device 3 configured as described above will be described with reference to the drawings. The operation of the door closer device 3 is roughly classified into a lock operation and an unlock operation.

[Locking Operation] The locking operation is an operation until the opened trunk door 2 is completely closed, and the latch 8 is used to engage the second ratchet 20 and the latch 8.
To a closing start position, and a closing operation to guide the latch 8 that engages the latch 8 and the first ratchet 10 to a so-called full latch position.

1. Closing start position guiding operation When the trunk door 2 is open, as shown in FIG. 2, the latch 8 is arranged in the original position and the connecting arm 17 (reduction gear 36) is arranged in the home position position when opened.
In this state, the first contact 40 is in non-conduction with the third contact 42 due to the pattern 38, so that the H-level detection signal SG1 is input to the input port P1 of the control circuit unit 44. .

In this state, the limit switch 24
Is in the inactive state, the input port P3 of the control circuit unit 44 is
Is grounded via the switch 24. That is, the L-level operation signal SG3 is input to the input port P3. Also, the door open switch 45 is in the non-operating state,
The door open signal SG4 of H level is input to the input port P4 of the control circuit unit 44.

Then, the striker 4 inserted into the insertion passage 6 resists the biasing force of the coil spring 11 and the latch 8
Is pushed in and the locking surface 8c of the latch 8 and the locking piece 20a of the second ratchet 20 are placed at a closing start position where they can engage with each other, the coil spring 23 operates as shown in FIG. The second ratchet 20 is rotated in the same direction based on the counterclockwise rotation of the lever 22, and the locking piece 20a of the second ratchet 20 is engaged with the locking surface 8c of the latch 8. Then, the engagement of the latch 8 restricts the clockwise rotation from the closing start position.

When the actuating lever 22 rotates counterclockwise, the engagement projection 22e actuates the limit switch 24, and the H-level actuating signal SG3 is input to the input port P3 of the control circuit section 44. It

In this closing start position guiding operation, the drive motor M does not operate, so the connecting arm 17 (reduction gear 36) remains in the open home position. That is, the H-level detection signal SG1 is input to the input port P1 of the control circuit unit 44.

2. Closing operation When the limit switch 24 operates and the H level operation signal SG3 is input to the input port P3 of the control circuit section 44, the control circuit section 44 causes the H level operation signal SG to be output.
Based on 3, the exciting coil 46b is excited. When the exciting coil 46b is excited, the changeover switch 46a connects the positive electrode of the drive motor M to the battery B and supplies the battery power to the motor M. That is, the controller 43
The drive motor M is rotated to rotate the connecting arm 17 arranged at the open home position together with the reduction gear 36 in the counterclockwise direction. At this time, the reduction gear 36
The pattern 38 also rotates in the counterclockwise direction with the rotation of, and the first contactor 40 and the third contactor 42 are switched from the non-conducting state to the conducting state. That is, the input port P of the control circuit unit 44
The detection signal SG1 input to 1 goes from the H level to the L level.

With the rotation of the connecting arm 17 in the counterclockwise direction, the drive cam 14 connected to the link 16 by the support shaft 15 moves counterclockwise from the neutral position shown in FIG. It is rotated in the rotating direction. Then, since the locking piece 20 a of the second ratchet 20 connected to the drive cam 14 by the support shaft 21 is engaged with the locking surface 8 c of the latch 8, the latch 8 is attached to the drive cam 14. By the rotation, it is forcibly rotated counterclockwise.

Eventually, the latch surface 1 of the first ratchet 10
When the latch 8 is rotated until 0b becomes engageable with the locking surface 8b of the latch 8, the first ratchet 10 is rotated counterclockwise by the biasing force of the coil spring 11. When the connecting arm 17 reaches the top dead center position shown in FIG. 7, the latch surface 10b of the first ratchet 10 and the locking surface 8b of the latch 8 are separated from each other. this is,
A margin is provided to surely rotate the first ratchet 10 in the counterclockwise direction.

Further, when the connecting arm 17 rotates counterclockwise, the drive cam 14 rotates clockwise and the latch 8 rotates clockwise by the urging force of the coil spring 11. . When the latch surface 10b of the first ratchet 10 and the locking surface 8b of the latch 8 are brought into the engaged state, the engagement of the latch 8 restricts the clockwise rotation from the full latch position, and the trunk door 2 Is completely closed (full latch state).

Even when the latch 8 is at the full latch position, the controller 43 continues the rotation of the drive motor M to rotate the connecting arm 17 in the counterclockwise direction to the closed home position shown in FIG. When the connecting arm 17 (reduction gear 36) reaches the home position position when closed, the first contact 40 is brought out of conduction with the third contact 42 by the pattern 38, so that the input port P1 of the control circuit unit 44 is connected. The input detection signal SG1 changes from L level to H level.

Then, the control circuit section 44 deenergizes the exciting coil 46b based on the H level detection signal SG1 input to the input port P1. When the exciting coil 46b is in the non-excited state, the changeover switch 46a grounds the positive electrode of the drive motor M to cut off the supply of the battery power to the motor M. That is, the controller 43 stops the rotation of the drive motor M, disposes the drive cam 14 at the neutral position, and at the same time, connects the connecting arm 17 (reduction gear 36).
Is placed in the home position when closed. In this closing operation, the second contactor 41 is operated until the connecting arm 17 (the reduction gear 36) reaches the closed home position position shown in FIG. 8 from the rotational position including the open home position position. The third contact 42 is electrically connected via the pattern 38. Therefore, during this operation, the L-level detection signal SG2 is input to the input port P2 of the control circuit unit 44.

[Unlocking Operation] The unlocking operation is an operation for opening the completely closed trunk door 2, that is, an operation for releasing the engagement between the latch 8 and the first ratchet 10 to return the latch 8 to the original position by rotation. Is.

In the state where the trunk door 2 is completely closed (full latch state), the latch 8 is arranged in the full latch position and the connecting arm 17 is arranged in the closed home position position as shown in FIG. In this state, the first contact 40 is in non-conduction with the third contact 42 due to the pattern 38, so that the H-level detection signal SG1 is input to the input port P1 of the control circuit unit 44. .

When the door open switch 45 such as the driver seat opener switch or the remote control switch is turned on, the door open signal SG4 input to the input port P4 of the control circuit section 44 changes from the H level to the L level. The control circuit unit 44 excites the exciting coil 46b based on the L level door open signal SG4. Excitation coil 46b
Is excited, the changeover switch 46a connects the positive electrode of the drive motor M to the battery B, and supplies the battery power to the motor M. That is, the controller 43 rotates the drive motor M to rotate the connecting arm 17 arranged at the closed home position together with the reduction gear 36 in the counterclockwise direction. At this time, the pattern 38 also rotates in the counterclockwise direction with the rotation of the reduction gear 36, and the first contactor 40 and the third contactor 42 are switched from the non-conductive state to the conductive state. That is, the detection signal SG1 input to the input port P1 of the control circuit unit 44 changes from H level to L level.

As the connecting arm 17 rotates in the counterclockwise direction, the drive cam 14 connected to the link 16 by the support shaft 15 rotates clockwise from the neutral position shown in FIG. It is rotated. Eventually, the outer peripheral surface of the rotating drive cam 14 comes into contact with the locking projection 22b of the operating lever 22 to rotate the operating lever 22 in the clockwise direction about the support shaft 9. At this time, the first outer surface of the operating lever 22 is
Since the locking pin 10c of the ratchet 10 is in contact, the first ratchet 10 is rotated in the clockwise direction about the support shaft 9.

By such a series of operations, the latch surface 10b of the first ratchet 10 is disengaged from the locking surface 8b of the latch 8 as shown in FIG. At this time, the second
The ratchet 20 has a driven pin 20b whose operating lever 2
Since it is guided in the second guide groove 22c, the operating lever 22
Along with the rotation of the latch 8, the latch 8 is spaced apart from the engaging surface 8c of the latch 8. As a result, the first ratchet 1
0 and the latch 8 are disengaged, the latch 8
Is rotated clockwise about the support shaft 7 by the urging force of the coil spring 11 to return to the side wall 5 of the base plate 5.
It is regulated at the position where it contacts a, that is, the original position.

Even when the latch 8 is returned to the original position, the controller 43 continues the rotation of the drive motor M to rotate the connecting arm 17 in the counterclockwise direction to the open home position shown in FIG. When the connecting arm 17 (reduction gear 36) reaches the home position position when opened, the first contact 40 is brought out of conduction with the third contact 42 by the pattern 38, so that the input port P1 of the control circuit unit 44 is connected. The input detection signal SG1 changes from L level to H level.

Then, the control circuit section 44 deenergizes the exciting coil 46b based on the H level detection signal SG1 input to the input port P1. When the exciting coil 46b is in the non-excited state, the changeover switch 46a grounds the positive electrode of the drive motor M to cut off the supply of the battery power to the motor M. That is, the controller 43 stops the rotation of the drive motor M, disposes the drive cam 14 at the neutral position, and at the same time, connects the connecting arm 17 (reduction gear 36).
Place at the home position when open.

In this unlocking operation, the connecting arm 17 (reduction gear 36) moves from the rotational position including the closed home position to the closed home position shown in FIG. Contact 41 is pattern 3
8 is in non-conduction with the third contact 42.
Therefore, during this operation, the H level detection signal SG2 is input to the input port P2 of the control circuit section 44.

Next, while the door closer device 3 is performing the closing operation and the unlocking operation, the driving power supplied to the device 3 is cut off, the operation of the device 3 is temporarily stopped, and then the power is supplied again. The operation of the device 3 in the case of the above will be described.

In this case, the door closer device 3 includes the first and third contacts 4 when the connecting arm 17 (reduction gear 36) is located at both home positions.
When 0 and 42 are in the non-conducting state and the detection signal SG1 of H level is input to the input port P1 of the control circuit unit 44, the operation is not performed. In other words, the device 3 is the first
And the third contacts 40, 42 are in the conductive state, and the L-level detection signal SG1 is input to the input port P1 of the control circuit unit 44.
Works when is entered.

[When the driving power supply is cut off during the closing operation] As described above, in this closing operation, the connecting arm 17 (the reduction gear 36) includes the open home position position shown in FIG. 2 (FIG. 6). From the rotating position before reaching the closed home position position shown in FIG.
The second contact 41 has the third contact 42 through the pattern 38.
And is in a conductive state. Therefore, during this operation, the L-level detection signal SG2 is input to the input port P2 of the control circuit unit 44.

Therefore, when power is supplied again, the control circuit section 44 is based on the L level detection signal SG2 input to the input port P2 and the L level detection signal SG1 input to the input port P1. And like above,
By rotating the drive motor M, the connecting arm 17 (the reduction gear 3
6) is rotated to the closed home position position shown in FIG. 8 to continue the closing operation.

[When the driving power supply is cut off during the unlocking operation] As described above, in this unlocking operation,
The connecting arm 17 (reduction gear 36) moves from the rotational position including the closed home position position shown in FIG. 8 to the open home position position shown in FIG. 2 (FIG. 6) until the second position.
The contact 41 is not electrically connected to the third contact 42 by the pattern 38. Therefore, during this operation, the H level detection signal SG2 is input to the input port P2 of the control circuit section 44.

Therefore, when power is supplied again, the control circuit section 44 receives the H level detection signal SG2 input to the input port P2 and the L level detection signal SG1 input to the input port P1. And like above,
By rotating the drive motor M, the connecting arm 17 (the reduction gear 3
6) is rotated to the open home position shown in FIG. 2 (FIG. 6), and the unlocking operation is continued.

Therefore, in the present embodiment, when the power is supplied again, the control circuit section 44 can determine whether the door closer device 3 is in the retracting operation to the full latch position or the unlocking operation. Therefore, the operation can be accurately restarted.

As described above, according to this embodiment,
It has the following features. (1) The circular surface 36a of the reduction gear 36 is provided with a pattern 38 made of a conductor and having a predetermined shape, and the first to third contacts 40 to 42 which are in sliding contact with the pattern 38 are provided. Then, as the drive motor M rotates, the pattern 38 of the reduction gear 36 rotates, and the first and second contactors 4
The detection signals SG1 and SG2 are output to the control circuit unit 44 from the first and second contactors 40 and 41 by bringing the 0 and 41 into conduction or non-conduction with the grounded third contactor 42. The control circuit unit 44 detects the rotational position of the reduction gear 36 (the connecting arm 17) based on the detection signals SG1 and SG2. Therefore, it is possible to configure without the need to assemble a plurality of position detection sensors, so that it is possible to reduce the number of parts of the device, downsize, and reduce the number of assembling steps.

(2) In addition, the first to third contacts 40 to 42 are brought into sliding contact with the pattern 38 to reduce the reduction gear 36 (the connecting arm 1).
Because of the configuration for detecting the rotating position in 7), whether the device 3 is pulled to the full latch position or unlocked even if the power supplied to the device 3 is cut off and then supplied again. Can be determined by the control circuit unit 44. As a result, the operation of the device 3 can be accurately restarted.

(3) Moreover, the pattern 38 is the reduction gear 3
Since it is integrally provided on the device 6, a special member for attaching the pattern 38 is not required, and the number of parts of the device 3 can be further reduced, and the size and the number of assembling steps can be reduced.

(4) Reduction gear 36 having pattern 38
And the first to third contacts 40 to 42, that is, the detection sensor 31.
Is assembled in the case 18 a of the actuator 18. Therefore, the detection sensor 31 can be configured without being exposed to the outside, and a dustproof and waterproof effect can be obtained.

The embodiment of the present invention may be modified as follows. In the above embodiment, the detection sensor 31 is replaced by the reduction gear 36.
38 provided integrally with the pattern 38 and this pattern 38
The first to third contactors 40 to 42 which are in sliding contact with the sensor 31 are used to detect the H-level or L-level detection signal SG from the sensor 31.
1, reduction gear 36 (connection arm 17) based on SG2
Although the rotational position of is detected, the present invention is not limited to this configuration. For example, the pattern 38 may be provided on the other reduction gears 33 to 35.

Further, the voltage value of the detection signal may be changed according to the rotational position of the reduction gear 36 (the connecting arm 17), for example, a rotary potentiometer may be used.

Further, the pattern 38 is configured to be optically detectable, and instead of the first to third contacts 40 to 42, a light receiving element is optically used to optically rotate the reduction gear 36 (the connecting arm 17). It may be a detection sensor for detecting.

In the above embodiment, the detection sensor 31 is provided inside the case 18a of the actuator 18, but outside the case 18a, for example, the connecting arm 17 is a disk-shaped rotating body, and the pattern 38 is formed on the rotating body. It may be configured by attaching.

In the above embodiment, the door closer device 3 is attached to the trunk door 2, but it may be attached to other doors .

[0097]

[0098]

As described in detail above, the first, third, and fourth aspects are provided.
According to the invention described in (1), in the locking / unlocking device that performs the pulling-in operation from the closing position to the full-latch position and the unlocking operation of the door body by sharing one actuator, the number of parts of the locking / unlocking device is reduced, It is possible to provide a door locking / unlocking device that can reduce the number of steps and the number of assembling steps.

According to the second aspect of the invention, in addition to the miniaturization of the device, the operating state of the actuator at each time is detected, and for example, the power is turned off and the actuator is temporarily stopped and then the power is supplied again. Even in such a case, it is possible to provide a door body locking / unlocking device that can accurately restart the operation.

[Brief description of drawings]

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

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

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

FIG. 4 is a plan view showing individual disassembled constituent members of the door closer device.

5 is a side view seen from the X direction in FIG. 2. FIG.

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

FIG. 7 is a plan view for explaining the operation of the door closer device.

FIG. 8 is a plan view for explaining the operation of the door closer device.

FIG. 9 is a plan view for explaining the operation of the door closer device.

FIG. 10 is a plan view showing an actuator.

FIG. 11 is a circuit diagram showing an electrical configuration of a door closer device.

[Explanation of symbols]

2 ... Trunk door as door body, 4 ... Striker as locking portion, 7 ... Spindle as rotating shaft, 8 ... Latch, 10
... first ratchet as locking means, 10c ... locking pin forming lock releasing means, 14 ... driving cam, 16 ... link forming link mechanism, 17 ... connecting arm forming link mechanism, 18a ... case , 20 ... second ratchet constituting pulling means, 22 ... actuating lever constituting pulling means, 22b ... locking projection constituting lock releasing means, 36 ... reduction gear as a rotating body, 36a ... as a rotating surface Circular surface, 38 ... Pattern, 40-42 ... First to third contactors as detection members, M ... Drive motor, SG1,
SG2 ... Detection signal.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05B 65/12-65/42 B60J 5/00

Claims (4)

(57) [Claims] 1. The locking part (4) is introduced from an original position where the locking part (4) for locking the door body (2) in a closed state can be introduced, and the locking part (4). Of the latch (8) that is rotatably supported against the urging force in the direction of engaging and releasing the engagement of the latch (8) with the latch (8) at the closing start position. 8) Retracting means (20, 22) for rotating the closing start position to the full latch position.
When the latch (8) is rotated to the full latch position, the latch (8) is engaged by an urging force urged in the direction of the latch (8) to restrict the position of the latch (8) at the full latch position. The means (10) and the engagement means (10) for restricting the latch (8) to the full-latch position in order to return the latch (8) to the original position where it can be introduced by the biasing force. Unlocking means (10c, 22b) for releasing the stop
And a rotation axis (7) parallel to the rotation axis (7) of the latch (8)
Are arranged so as to have the drawing means (20, 2).
2) and a drive cam (14) for operating the unlocking means (10c, 22b), a rotating body (36) rotated by a drive motor (M), and the rotating body (36) includes the latch ( 8) Rotating shaft (7)
Is provided in parallel with the output shaft (19) that is integrally rotatably fixed, and is provided between the rotating body (36) and the drive cam (14) to rotate the rotating body (36). Based on this, the drive cam (14) is rotationally driven to pull in the retraction means (2
0, 22) and a lock mechanism (16, 17) for operating the unlocking means (10c, 22b), a door body locking / unlocking device comprising: a rotating surface (36a) of the rotating body (36); A pattern (38) provided to detect the rotational position of the rotating body (36), and a detection signal for detecting the pattern (38) to detect the rotating position of the rotating body (36). (SG1, SG2)
And a detection member (40 to 42) for generating the above. The rotating body (36) is integrally assembled with the drive motor (M) in the case (18a), and the detection member (40 to 42). Is disposed in the case (18a) thereof, and the retracting means has a base end portion thereof which is the drive cam ( 1a).
4) is rotatably connected with respect to the above-mentioned latch at the tip.
Second locking hand having an engaging portion (20a) for engaging with (8)
Latch by engagement between the step (20) and the locking portion (4)
With the rotation of (8), the engaging portion of the second locking means (20)
(20a) is engaged with the latch (8) at the closing start position.
The engaging member (20a) is guided so that the second engaging member
Rotate the stop means (20) relative to the drive cam (14).
The full start of the closing position.
The engagement by the engagement part (20a) is maintained until the
It has a guide part (22c) to hold and its base end is rotatable
A door locking / unlocking device, which is composed of an operation lever (22) that is supported by a door. 2. The door locking / unlocking device according to claim 1, wherein the pattern (38) is made of a conductor formed in a predetermined shape, and the detection member (40 to 42) is the pattern (38). )
A door locking / unlocking device, which is a contactor slidably contacting with a door. 3. The door locking / unlocking device according to claim 1, wherein the rotating body (36) is a reduction gear that reduces the rotation of the drive motor (M). A door locking and unlocking device. 4. The door locking / unlocking device according to claim 1, wherein the pivot shaft (7) of the latch (8) is a drive cam (14).
A door locking / unlocking device, which is coaxial with the rotation axis (7) .