JPH06193328A - Door closure device - Google Patents

Abstract

PURPOSE:To miniaturize and simplify a controller by providing a striker position detecting switch to a closure mechanism in a fully closed state by pulling in a striker interlocking with a latch provided to a door, and controlling a driving device by singnals from the switch. CONSTITUTION:A striker position detecting switch 68 is provided to a closure mechanism 6 in a fully closed state by pulling in a striker 62 interlocking with a latch 7 installed to a luggage door 4 from a state (a half-opened state) interlocked with the latch 7. The rotation of a driving device 65 is controlled by singnals from a switch 68, and an amount of pulling-in of the striker 62 is controlled. According to the constitution, the controller can be miniaturized and simplified.

Description

Detailed Description of the Invention

[0001]

[Object of the Invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closer device used as a closing mechanism for luggage doors and the like.

[0003]

2. Description of the Related Art Heretofore, as this kind of door closer device, the one shown in the manual for Toyota Estema Emina new model car issued on January 13, 1992 is known. This is a half-closed state in which the latch is engaged with the striker by a person rotating the door in the fully opened state and the door is not completely closed from the fully opened state. At this time,
The drive mechanism is drive-controlled by the control means based on the signal from the latch position detecting means which is recognized by the change of the latch position detecting means from the on state to the off position. And the latch is pulled in, and as a result, the door changes from the semi-closed state to the fully closed state in which the door is completely closed. Therefore, even if the door is lightly rotated, the operability and sealing performance are such that the door is completely closed against the reaction force of the weather strip that seals between the door and the vehicle body. Was to improve. The stop of the drive mechanism is controlled by the control means based on a signal from the first striker position detecting means when the retracted position of the striker is recognized by the first striker position detecting means being turned off. .

Further, when a person turns the fully closed door while operating an outside handle provided on the door, the engagement between the latch and the striker is released and the door is fully opened. At this time, this state is recognized by the latch position detecting means changing from the off state to the on state, and the control means drives and controls the drive mechanism based on the signal from the latch position detecting means to retract the striker. Based on a signal from the second striker position detecting means, which is slid from the position to the engaging position, and the engaging position of the striker is recognized by turning on the second striker position detecting means. The drive mechanism is stopped and controlled by the control means.

[0005]

However, in the above-mentioned conventional apparatus, the drive mechanism is stopped by the first striker detecting means and the second striker by the on / off operation of the first striker detecting means and the second striker detecting means. Since the stop control is performed by the control means based on the signal from the detection means, the control means becomes large and complicated.

Therefore, the present invention has as its technical problem the miniaturization and simplification of the control means.

[0007]

[Constitution of the invention]

[0008]

The technical means taken in the present invention to solve the above technical problems is a striker for retracting a latch engaged by a sliding motion from an engaging position to a retracted position. A ratchet that engages and disengages with the striker by a turning operation at the retracted position of the striker; a drive mechanism that is linked to the striker to slide the striker; and a turning operation of the ratchet to turn on and off. It has a striker position detecting means for operating to recognize the engagement position and the retracted position of the striker, and a control means having at least a function of stopping and controlling the drive mechanism based on a signal from the striker position detecting means. Is.

[0009]

According to the above-mentioned technical means, the stop control of the drive mechanism is performed based on the signal only from the striker position detecting means by the on / off operation of the striker position detecting means. Therefore, the control means can be downsized and simplified.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a luggage room 1 is formed at the rear of the vehicle.

This luggage room 1 has a vehicle body 2 and a hinge 3
The luggage door 4 rotatably supported by is opened and closed by a person directly rotating the luggage door 4. Further, a seal member 5 is fixed to the opening edge of the luggage room 1, and seals between the vehicle body 2 and the luggage door 4 when the luggage room 1 is closed. The vehicle body 2 is provided with a later-described closer mechanism 6, and the luggage door 5 is provided with a later-described latch mechanism 7. This closer mechanism 6
By the engagement of the striker 62 and the latch 72 of the latch mechanism 7, the luggage door 4 is held by the vehicle body 2 so that the luggage room 1 is closed.

Next, the closer mechanism 6 will be described.

As shown in FIGS. 2 to 5, the closer mechanism 6 includes a base 61, a striker 62, and a lever 6.
3, a ratchet 64, a drive mechanism 65, and a striker position detection switch 68.

The base 61 is composed of two plates 61a and 61a.
b is overlapped so as to form a space 61c between them, and is fixed to the vehicle body 2.

The striker 62 comprises a support member 62a, an inverted U-shaped engagement member 62b fixed on the support member 62a, and an engagement pin 62c erected on the support member 62a. 62a is disposed in the space 61c and is slidably supported by being sandwiched between the plates 61a and 61b, so that the striker 62 is engaged in the engagement position A in the state shown in FIG. 9 and the retracted position B in the state shown in FIG. It is slidably supported by the base 61 so that The plate 61a has a notch 61 along the sliding direction of the striker 62.
d and an elongated hole 61e are respectively formed, and the notch 61
The engagement member 62b is inserted through d to allow the engagement member 62b to slide due to the sliding of the striker 62, and the engagement pin 62c is inserted through the elongated hole 61e, and the striker 6 is inserted.
The sliding of the engagement pin 62c by the sliding of 2 is allowed.
A resin spacer 61f integrally fixed to the plates 61a and 61b is disposed between the plates 61a and 61b and the support member 62a, and the spacer 61f allows the support member 62a and the plates 61a and 61b to be separated from each other. The friction of the striker 62 is reduced to make the striker 62 slide smoothly. The spacer 61f is integrally formed with a stopper 61g arranged in the elongated hole 61e. The stopper 61g reduces the collision between the engagement pin 62c and the plate 61a at the engagement position A of the striker 62. is doing. Further, the support member 62a engages with a claw portion 64c of a ratchet 64, which will be described later, and a claw portion 62e that regulates the sliding of the striker 62, and a regulation surface 62f that abuts the claw portion 64c to regulate the rotation of the ratchet 64. Are formed respectively. The striker 62 thus configured is constantly urged by the spring 66 to slide in the engagement position A direction. The spring 66 is disposed in the space 61c so as to be sandwiched between the plates 61a and 61b, and the winding portion is supported by the pin 66a supported by the plates 61a and 61b, and is supported by the base 61 and one end thereof is The support member 6 which is engaged with the end surface of the support member 62a and urges the striker 62 to slide as described above to form the cam portion 62d at the other end.
It is in sliding contact with the side surface of 2a.

The ratchet 64 includes plates 61a and 61b.
The plate 61 is placed in the space 61c so as to be sandwiched between
It is rotatably supported on the base 61 by a pin 64a supported by a and 61b. An engaging pin 64b is erected on the ratchet 64, and is inserted into an arc-shaped elongated hole 61h centered on the pin 64a formed on the plate 61a to allow the ratchet 64 to rotate. The ratchet 64 is formed with a claw portion 64c that engages with and disengages from the claw portion 62e of the striker 62 and that abuts and releases the abutment surface 62f. Further, the ratchet 64 is provided with a cam surface 64d for turning on and off the striker position detecting switch 68 by engaging and disengaging with a contact 68a of a striker position detecting switch 68 which will be described later. In the ratchet 64 configured as described above, the claw portion 64c is engaged with the claw portion 62e by the spring 67 or the regulating surface 62f.
It is constantly urged to rotate in the direction of contact with.
The spring 67 is arranged in the space 61c so as to be sandwiched between the plates 61a and 61b.
The winding portion is supported by the pin 67a supported by a and 61b, and is supported by the base 61, and one end of the plate 61a is supported.
The ratchet 64 is locked to a and the other end is locked to the claw 64c to bias the ratchet 64 to rotate as described above.

The lever 63 has an engaging pin 62c of the striker 62 and an engaging pin 6 of the ratchet 64 on the plate 61a.
The plate 61a is arranged so as to be located between the plate 61a and
It is rotatably supported by the base 61 by a pin 63a supported by the base 63. The lever 63 has a first engagement surface 63b that engages with the engagement pin 62c and a second engagement surface 63c that engages with the engagement pin 64b.

The drive mechanism 65 is fixed to the plate 61b and supported by the base 61, and is connected to the output ports P1 and P2 of the CPU 81 of the control circuit 8 shown in FIG. , Motor 65
It is composed of a nut member (not shown) connected to the output shaft of a through a gear mechanism (not shown) and a screw 65b screwed to the nut member (this drive mechanism 65).
Is well known). This screw 65b is lever 6
It is coupled by a pin 65c through an elongated hole 63d formed in the No. 3.

The striker position detection switch 68 is a limit switch which is turned on and off, and is connected to the CPU 81 of the control circuit 8 shown in FIG. 7 at the input port P3. The striker position detection switch 68 is fixed to the plate 61b and supported by the base 61, and the contact point 68a has the cam surface 64 of the ratchet 64 as described above.
It can be engaged and disengaged with d.

Next, the latch mechanism 7 will be described.

As shown in FIG. 6, the latch mechanism 7 includes
It is composed of a base 71, a latch 72, a pole 73 and a latch position detection switch 74.

The base 71 has a groove 71a into which the engaging member 62b of the striker 62 is inserted, and the luggage door 4
Fixed to. The base 71 is provided at the bottom of the groove 71a.
The cushion body 76 fixed to the base portion 71 is arranged to reduce the collision between the base 71 and the engaging portion 62b when the engaging portion 62b is inserted into the groove portion 71a.

The latch 72 is rotatably supported on the base 71 by a pin 72a, and is arranged so as to cross the groove portion 71a. The engaging groove 72b is engaged with the engaging member 62b of the striker 62, which will be described later. Claw portion 73b of the pole 73
And a cam portion 74d for engaging and disengaging with the contact portion 74a of the latch position detecting switch 74, which will be described later, by turning on and off the latch position detecting switch 74. Are formed respectively. The pole 73 is rotatably supported on the base 71 by a pin 73 a, and the claw portion 72 of the latch 72 is provided.
Claw portions 73b that engage with c are formed respectively. A spring 75 is stretched between the latch 72 and the pole 73 thus configured, and the latch 72 is in a direction in which the engagement between the claw portion 72c and the claw portion 73b is released by the spring 75. The pole 73 is always biased by the spring 75 in the direction in which the claw portion 72c and the claw portion 73b are engaged (these configurations are well known).

The latch position detection switch 74 is a limit switch which is turned on and off, and is connected to the CPU 81 of the control circuit 8 shown in FIG. 7 at the input port P4. The latch position detecting switch 74 is fixed to the base 71, and the contact point 74a has the latch 72 as described above.
The cam portion 72d is detachable.

Next, the operation will be described based on the time chart of FIG.

FIG. 8 shows the state of the latch mechanism 7 when the luggage room 1 is in the open state. The latch 72 has an engaging groove 72b located on the groove portion 71a so that the engaging member 62b can be received. The pawl 73 is rotatably arranged so that the claws 73b and 72c are disengaged from each other. Further, the latch position detection switch 74 is in the ON state because the engagement between the contact point 74a and the cam portion 72d is released. Figure 9 shows luggage room 1
Shows the state of the closer mechanism 6 when it is opened, the striker 62 is slidably arranged so as to be located at the engagement position A, and the ratchet 64 has the claw portion 64c and the claw portion 6.
2e is disengaged and the restricting surface 62f and the claw portion 64c
Are arranged so that they can come into contact with each other. The striker position detection switch 68 has a contact point 68a and a cam surface 64d.
Since and are engaged, they are in the ON state.

In this state, when a person directly rotates the luggage door 4 to close the luggage room 1, the engagement member 6 is rotated by the rotation of the luggage door 4.
2b is received in the engagement groove 72b while being inserted into the groove portion 71a, and the latch 72 is rotated counterclockwise in FIG. 8 against the biasing force of the spring 75. As a result, as shown in FIG.
The pawl portion 72c and the pawl portion 73b are engaged with each other by the biasing force of No. 5, the rotation of the latch 72 is restricted by the pawl 73, and the engagement groove 72b is engaged with the engagement member 62b. 62 and the latch 72 are brought into engagement with each other, and the latch position detection switch 74 causes the cam portion 72d and the contact 7 to come into contact with each other.
The engagement with 4a results in the off state. As a result, in the luggage room 1, the luggage door 4 is held half-closed with respect to the vehicle body 2 in a state where the reaction force of the seal member 5 is not working, that is, the luggage door 4 and the vehicle body 2 are not completely sealed. It becomes a state. At this time, the striker 62 receives the urging force of the spring 66 and remains in the engagement position A in the state shown in FIG.
The engagement between c and the claw portion 62e is released, and the restricting surface 62f and the claw portion 64c are still arranged so that they can come into contact with each other, and the striker position detection switch 68 engages the contact point 68a and the cam surface 64d. Then, it remains turned on.

When the latch position detection switch 74 is kept off for a predetermined time (measured in the CPU 81), the signal is input to the port P4 of the CPU 81, and the motor 65a is output from the output ports P1 and P2 based on the signal. Is output in the normal direction, and the motor drive circuit 82 drives the motor 65a in the normal direction based on the signal.
The forward rotation of the motor 65a causes the screw 65b to move in the D direction shown in FIG. 9 via the gear mechanism and nut member, and the lever 63 to rotate counterclockwise in FIG. By the rotation of the lever 63, the engagement pin 62c and the first engagement surface 63b are
11 and FIG. 1 are engaged with each other as shown in FIG. 10, and then the striker 62 resists the urging force of the spring 66 in accordance with the movement of the screw 65b and the rotation of the lever 63.
The latch is pulled in and slid so as to sequentially go through the state of 2. At this time, the ratchet 64 includes the regulating surface 62f and the claw portion 64.
Since the contact with c is still maintained, the ratchet 6
4 is rotationally restricted against the urging force of the spring 67, and the disengagement of the claw portion 64c and the claw portion 62e and the ON state of the striker position detection switch 68 are maintained.
The other end of the spring 66 is in sliding contact with the side surface of the support member 62a so as to ride over the cam portion 62d. When the striker 62 reaches the state of FIG. 12, the restricting surface 62f and the claw portion 6
The contact with 4c is released, and the ratchet 64 is rotated counterclockwise in FIG. 12 by the urging force of the spring 67.
As a result, the engagement between the contact point 68a and the cam surface 64d is released, the striker position detection switch 68 is turned off, and the claw portion 64c and the claw portion 62e are engaged. When the striker position detection switch 68 is turned off, the signal is input to the input port P3 of the CPU 81, a signal for stopping the motor 65a is output from the output ports P1 and P2 based on the signal, and based on the signal. The motor 65a is stopped by the motor drive circuit 82. On this occasion,
Due to the structure of the motor 65a, the motor 65a continues to be normally driven by inertia, and the striker 62 and the lever 63 overtravel so that a gap is formed between the claw portion 62e and the claw portion 64c as shown in FIG. A predetermined time after the signal for stopping the motor 65a is output from the output ports P1 and P2 (measured in the CPU 81), a signal for driving the motor 65a in reverse is output from the output ports P1 and P2, and the motor 65a is output based on the signal. Is reversely driven by the motor drive circuit 82 to rotate the lever 63 clockwise in FIG. 13 to release the engagement between the engagement pin 62c and the first engagement surface 63b. As a result, as shown in FIG. 14, the striker 62 is pushed out and slid by the urging force of the spring 66, and the claw portion 62e and the claw portion 64c are engaged with each other so that the striker 62 is in the engaged position. That is, it is arranged at the retracted position B in a state in which sliding is restricted by the engagement of the claw portion 62e and the claw portion 64c. As a result, the luggage room 1 is in a completely closed state in which the luggage door 4 is held with respect to the vehicle body 2 in a state in which the reaction force of the seal member 5 is applied, that is, the luggage door 4 and the vehicle body 2 are completely sealed. . At this time, the rigidity of the luggage door 4 with respect to the vehicle body 2 is
It is secured by the engagement of the claw portion 62e and the claw portion 64c. The reverse rotation drive of the motor 65a is performed after a predetermined time (measured in the CPU 81) after a signal for driving the reverse rotation of the motor 65a is output from the output ports P1 and P2.
A signal for stopping the motor 65a is output from the output ports P1 and P2, and the motor 65a is stopped by the motor drive circuit 82 based on the signal. Also, the motor 6
When the striker 62 shown in FIG. 14 is arranged at the retracted position B so that the second engagement surface 63c and the engagement pin 64b do not engage with each other during the above-described reverse rotation drive of 5a, the engagement pin 64b and A predetermined gap is formed between the second engagement surface 63c and the second engagement surface 63c.

Latch from the engaging position A to the retracted position B of the striker 62 by the normal rotation drive of the motor 65a. During the pull-in sliding, an object such as clothes is sandwiched between the luggage door 4 and the vehicle body 2. When the pull-in sliding continues for a predetermined time (measured in the CPU 81) or more, as shown in the timing chart of FIG. 18, the motor 6 is output from the output ports P1 and P2 when a predetermined time or more has elapsed.
A signal for driving the motor 5a in the reverse direction is output, and based on the signal, the motor 65a is reversely driven for a predetermined time by the motor drive circuit 82 so that the striker 62 is pushed out and slid to return to the engagement position A. You may
The timing for driving the motor 65a in the reverse direction may be the time when the overcurrent of the motor 65a is detected. In addition, the engagement position A of the striker 62 by the normal rotation drive of the motor 65a
During the latch pull-in sliding from the pull-in position B to the pull-in position B, the latch pull-in sliding is performed for a predetermined time due to, for example, an improper installation of the luggage door 4 other than that something such as clothes is sandwiched between the luggage door 4 and the vehicle body 2. When it continues for more than the time (measured in the CPU 81) or when the motor 65a becomes overloaded, an emergency switch (not shown) connected to the CPU 81 is turned on (manual operation) to control. The circuit 8 may be inoperable. At this time, the CPU 81 detects that the emergency switch is turned on and detects that the port P1. Motor 65a from P2
The motor drive circuit 82 drives the motor 65a for a predetermined time (C
The striker 62 is placed in the retracted position B by being driven to rotate in the normal direction (measured in the PU 81) and slid into the latch. Incidentally, when operating the emergency switch, the engagement between the striker 62 and the latch 72 must be released by the operation of an opener or the like (not shown) in the passenger compartment (the engagement releasing operation will be described later in detail. explain). Further, the control circuit 8 is returned to the normal operating state by operating the emergency switch in the off state. Further, the latch position detection switch 74 may be substituted by using this emergency switch.

In the state shown in FIGS. 6 and 14, that is, the latch 72 and the striker 62 are engaged with each other, the rotation of the latch 72 is restricted by the pole 73, and the striker 62 is placed in the retracted position B and the ratchet 64 is attached. Therefore, in a completely closed state of the luggage room 1 in which the sliding of the striker 62 is restricted, the opener in the vehicle compartment is operated to rotate the pole 73 against the biasing force of the spring 75, thereby causing the claw portion 72c and the claw portion 73b to rotate. When a person directly rotates the luggage door 4 in order to open the luggage room 1 while releasing the engagement with, the ratchet 72 is dragged by the striker 62 by the rotation of the luggage door 4 and the spring. 6 by the biasing force of 75, the engagement between the engagement member 62d and the engagement groove 72b is released, and the cam portion is released. 2d engage with the contacts 74a is released. Therefore, the luggage room 1 is opened and the latch position detection switch 74 is turned on.

When the latch position detecting switch 74 is turned on, the signal is input to the port P4 of the CPU 81, and the signals for driving the motor 65a in the reverse direction are output from the output ports P1 and P2 based on the signal. Based on the signal, the motor drive circuit 82 drives the motor 65a to rotate in the reverse direction. The reverse rotation of the motor 65a causes the screw 65b to move in the F direction shown in FIG. 14 via the gear mechanism and nut member, and the lever 63 to rotate clockwise in FIG. By this rotation of the lever 63, the engagement pin 64b and the second engagement surface 63c are engaged with each other, and the ratchet 64 is rotated against the urging force of the spring 67. As shown in FIG. The engagement between the portion 62e and the claw portion 64c is released.
At this time, the engagement pin 62c and the first
Since the engagement with the engagement surface 63b is released, the striker 62 is pushed out and slid under the urging force of the spring 66 as shown in FIG.
Returned to and placed in. At this time, since the first engagement surface 63b is arranged on the stopper 61g by the rotation of the lever 63, the push pin sliding of the striker 62 causes the engagement pin 62c and the first engagement surface 63b to move. Is avoided, and the movement of the engagement pin 62c is effectively buffered by the stopper 61g. It should be noted that the motor 65a is used for the ratchet 64.
When the striker position detection switch 74 is turned on due to the contact between the contact 68a and the cam surface 64d in accordance with the rotation, the signal is input to the input port P3 of the CPU 81, and the output port P1 is output based on the signal. , P2 outputs a signal for stopping the motor 65a, and the motor drive circuit 82 stops the signal based on the signal.

The luggage room 1 shown in FIGS. 8 and 9.
When the luggage door 4 is swung with a force in the open state, the striker 62 strikes as shown in FIG. 16 due to the collision / engagement between the latch 72 and the striker 62.
Only the latch position pulls the latch independently from the engagement position A against the biasing force of the spring 66. As a result, the collision between the striker 62 and the latch 72 is effectively mitigated. At this time, the lever 63a is not rotated, and the engagement between the engagement pin 64b and the second engagement surface 63c is maintained as shown in FIG. 9, so that the rotation of the ratchet 64 is restricted. As the striker 62 slides, the claw portion 62e and the claw portion 6
4c does not engage. After that, the striker 62 is returned to the engagement position A again by the biasing force of the spring 66 as the collision between the latch 72 and the striker 62 is eliminated, and the striker 62 is driven by the forward rotation of the motor 65a. The latch pulls in and slides.
Further, when the striker 62 slides in and pulls in the latch, the other end of the spring 66 slides into contact with the side surface of the support member 62a. The size of the collision / engagement is such that the other end of the spring 66 gets over the cam portion 62d.

As shown in the timing chart of FIG. 19, even if the striker 62 is moved to the retracted position B, the ratchet 64 is rotated and the striker position detection switch 68 is changed from the off state to the on state. The motor 65a may be continuously driven in the normal direction for a predetermined time (measured in the CPU 81). As a result, in the open state of the luggage room 1 shown in FIGS. 8 and 9,
As shown in FIG. 13, the person pivotally operates the luggage door 4 so that the striker 62 reaches the retracted position B (including the overtraveled position) so that the striker 62 can be slid and retracted independently. Even if the striker 62 continues to rotate so that it remains in the retracted position B, the on / off operation of the striker position detection switch 68 is ignored, so the ratchet 64 rotates correctly at the normal timing. Will be done. Even if the engagement / disengagement point between the claw portion 64c and the claw portion 62e does not match the engagement / disengagement point between the contact point 68a and the cam portion 64d due to variations in the molding accuracy of the ratchet 62, the striker position detection switch 68 is turned on / off. The operation is ignored, so that the operation can be reliably performed.

20 and 21 to ensure a reliable operation when the engagement / disengagement point of the claw portion 64c and the claw portion 62e does not coincide with the engagement / disengagement point of the contact point 68a and the cam portion 64d. As described above, the convex portion 63e. The lever position detection switch 69 connected to the input port P5 of the CPU 81 which is turned on and off by disengaging the 63f and the contact point 69a.
May be provided. In this case, as shown in the timing chart of FIG. 22, when the striker 62 is pulled in and slid, the contact 68a and the cam portion 64d are disengaged from each other and the striker position detection switch 68 is changed from the ON state to the OFF state. After that, the contact point 69a and the convex portion 63e are engaged with each other with a timing shift to be turned on, and this signal is C
A signal for stopping the motor 65a is output from the output ports P1 and P2 based on the signal input to the input port P5 of the PU 81, and the motor drive circuit 82 stops the motor 65a based on the signal. Further, when the striker 62 is pushed out and slid, the contact point 68a and the cam portion 64d are engaged with each other and the striker position detection switch 6
After the ON state is changed from the OFF state to the ON state, the contact 69a and the convex portion 63f are engaged with each other with a timing shift to be in the ON state, and this signal is input to the input port P5 of the CPU 81 and is based on the signal. And a signal for stopping the motor 65a is output from the output ports P1 and P2.
Based on the signal, a is stopped by the motor drive circuit 82. As a result, even if the engagement / disengagement point between the claw portion 64c and the claw portion 62e does not match the engagement / disengagement point between the contact point 68a and the cam portion 64d due to variations in the molding precision of the ratchet 64, the ratchet 64 can be reliably operated. Becomes Two lever position detection switches 68 may be set instead of the lever position detection switches 69.

The striker receives a signal from the control circuit 8 when the vehicle is traveling at a certain speed or more, the ignition device is turned off, or the engagement between the striker 62 and the ratchet 64 is abnormally disengaged. A function of controlling the motor 65a may be provided so that the 62 pulls and slides in the latch.

[0037]

According to the present invention, the stop control of the drive mechanism is performed based on the signal only from the striker position detecting means by the on / off operation of the striker position detecting means.
This makes it possible to reduce the size and simplification of the control means.

Further, the stop control of the drive mechanism is performed by the control means after a predetermined time based on the signal from the striker position detecting means. Thus, even when the engagement / disengagement point of the ratchet with the striker and the on / off operation point of the striker position detection means do not match, a reliable engagement operation of the ratchet and striker can be ensured.

Further, when an abnormal state of the striker, the ratchet or the drive mechanism is detected, the operation of the drive mechanism is controlled by the control means based on the signal. This allows
It is possible to easily eliminate the cause of the abnormal state of the striker, ratchet or drive mechanism.

[Brief description of drawings]

FIG. 1 is a rear perspective view of a vehicle equipped with a door closer device according to the present invention.

FIG. 2 is a plan view of a closer mechanism of the door closer device according to the present invention.

FIG. 3 is a side view of FIG.

FIG. 4 is a front view of FIG.

5 is a sectional view taken along line GG in FIG.

FIG. 6 is a plan view of a latch mechanism of the door closer device according to the present invention.

FIG. 7 is a circuit diagram of a door closer device according to the present invention.

8 is an explanatory diagram of the operation of FIG.

FIG. 9 is an operation explanatory diagram of FIG. 2;

FIG. 10 is an operation explanatory view of FIG. 2.

FIG. 11 is an operation explanatory diagram of FIG. 2;

FIG. 12 is an operation explanatory view of FIG. 2;

FIG. 13 is an operation explanatory diagram of FIG. 2;

FIG. 14 is an explanatory diagram of the operation of FIG.

FIG. 15 is a diagram for explaining the operation of FIG.

16 is an explanatory diagram of the operation of FIG.

FIG. 17 is a timing chart showing the operation of FIG. 7.

FIG. 18 is a timing chart showing another operation of FIG. 7.

FIG. 19 is a timing chart showing another operation of FIG. 7.

FIG. 20 is a plan view showing another example of the door closer device according to the present invention.

FIG. 21 is a circuit diagram of another example of the door closer device according to the present invention.

22 is a timing chart showing the operation of FIG. 21. FIG.

[Explanation of symbols]

8 control circuit (control means) 61 base 62 striker 63 lever 64 ratchet 65 drive mechanism 68 striker position detection switch (strike position detection means) 72 latch

Claims (4)

[Claims] 1. A striker for pulling in a latch engaged by a sliding motion from an engaged position to a retracted position, and a ratchet for engaging and disengaging with the striker by a rotating motion of the striker in the retracted position. A drive mechanism that is linked to the striker and slides the striker; striker position detection means that recognizes an engagement position and a retracted position of the striker by turning the ratchet on and off. A door closer device having a control means having at least a function of stopping and controlling the drive mechanism based on a signal from the position detection means. 2. The door closer device according to claim 1, wherein the control means has a function of stopping and controlling the drive mechanism after a predetermined time based on a signal from the striker position detection means. 3. The door closer device according to claim 1, wherein the control means has a function of controlling the operation of the drive mechanism after detecting an abnormal state of the striker, the ratchet or the drive mechanism. 4. A latch position detecting means for recognizing at least an engagement state of the latch and the striker or a half-closed state of a door due to engagement of the latch and the striker, and the control means detects the latch position. 2. The door closer device according to claim 1, which has a function of controlling the operation of the drive mechanism based on a signal from the means which is continued for a predetermined time.