JP3111701B2 - Door closer device - Google Patents

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 which is used as a closing mechanism for a luggage door or the like and drives a striker by a driving mechanism to completely close the door to a vehicle body.

[0003]

2. Description of the Related Art Conventionally, as a door closer of this type, as disclosed in Japanese Patent Application Laid-Open No. 1-163386, a latch engaged with a striker is pulled by directly sliding the striker by a drive mechanism. As a result, the door is automatically closed from a state where the door is not completely closed to the vehicle body to a state where the door is completely closed with respect to the vehicle body. There is known a device in which the operability and the sealing performance, which are opposite to each other, are completely improved against the reaction force of a weather strip that seals between the door and the operability and the sealing performance.

[0004]

However, in the above-mentioned conventional device, the sliding operation of the striker is restricted by the driving mechanism. That is, the door is completely closed to the vehicle body by the driving mechanism. When an unexpected load is applied to the striker from the door via the latch, the drive mechanism will support all of the load, and the drive mechanism may be damaged. .

Therefore, an object of the present invention is to provide a door closer device capable of supporting an unexpected load applied to a striker by a portion other than a drive mechanism.

[0006]

Configuration of the Invention

[0007]

The technical means taken in the present invention to solve the above technical problems is a base, a latch slidably supported by the base and engaged by a sliding operation. , A driving mechanism linked to the striker, and a ratchet rotatably supported by the base and engaged with and disengaged from the striker by a turning operation.

[0008]

According to the above-mentioned technical means, when the striker and the ratchet are engaged, the sliding operation of the striker is regulated at the engaged portion. Therefore, an unexpected load applied to the striker supported by the drive mechanism is effectively reduced.

[0009]

An embodiment 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.

The luggage room 1 has a hinge 3
The luggage door 4, which is rotatably supported by this, is opened and closed by a person directly rotating the luggage door 4. A sealing 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 engagement of the striker 62 with 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 driving mechanism 65, and a striker position detection switch 68.

The base 61 has two plates 61a and 61
b are overlapped so as to form a space 61c therebetween, and are fixed to the vehicle body 2.

The striker 62 includes 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. The striker 62 is disposed in the space 61c and slidably supported by being sandwiched between the plates 61a and 61b, so that the striker 62 is in the engagement position A in the state shown in FIG. 9 and the retracted position B in the state shown in FIG. And FIG.
It is slidably supported by the base 61 so as to take the overtravel position C in the state shown in FIG. The plate 61a has a notch 61d and a long hole 61 along the sliding direction of the striker 62.
The notch 61d has an engagement member 62b inserted therein to allow the engagement member 62b to slide by the slide of the striker 62, and the elongated hole 61e has an engagement pin 62c. The insertion of the striker 62 allows the engagement pin 62c to slide by sliding. Plate 61
a, 61b and the supporting member 62a
A resin spacer 61f integrally fixed to the a and 61b is disposed, and the friction between the support member 62a and the plates 61a and 61b is reduced by the spacer 61f to smoothly slide the striker 62. It is assumed. The spacer 61f is integrally formed with a stopper 61g disposed in the elongated hole 61e.
The engagement pin 62 at the engagement position A of the striker 62
The collision between c and the plate 61a is reduced. Further, the supporting member 62a engages with a claw portion 64c of the ratchet 64, which will be described later, to restrict the sliding of the striker 62, and a regulating surface 62f which comes into contact with the claw portion 64c to regulate the rotation of the ratchet 64. Are formed respectively. The striker 62 thus configured is constantly urged by a spring 66 to slide in the direction of the engagement position A. The spring 66 is disposed in the space 61c so as to be sandwiched between the plates 61a and 61b.
The wound portion is supported by the pin 66a supported by the base member 61b and supported by the base 61, and one end is engaged with the end surface of the support member 62a to urge the striker 62 to slide as described above, and the other end is cammed. The support member 62a formed with 62d is in sliding contact with the side surface.

The ratchet 64 is composed of plates 61a and 61b.
The plate 61 is disposed in the space 61c so as to be sandwiched between
The pin 61a is rotatably supported by the base 61 by pins 64a supported by the pins 61a and 61b. An engaging pin 64b is provided upright on the ratchet 64, and is inserted into an arc-shaped long hole 61h around 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 abuts on and releases from the regulating surface 62f. The ratchet 64 is provided with a cam surface 64d for engaging and disengaging a contact 68a of a striker position detection switch 68, which will be described later, by turning the ratchet 64 to turn on and off the striker position detection switch 68. In the thus constructed ratchet 64, 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 in which it comes into contact.
The spring 67 is disposed in the space 61c so as to be sandwiched between the plates 61a and 61b.
a, a winding portion supported by a pin 67a supported by 61b, supported by a base 61, and one end of which is supported by a plate 61a.
a, and the other end is locked by the claw portion 64c to urge the ratchet 64 to rotate as described above.

The lever 63 is provided on the plate 61a with the engaging pin 62c of the striker 62 and the engaging pin 6 of the ratchet 64.
4b and the plate 61a
Is rotatably supported by the base 61 by the pin 63a supported by the base. 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 driving mechanism 65 is fixed to the plate 61b and supported by the base 61. The motor 65a is connected to the output ports P1 and P2 of the CPU 81 of the control circuit 8 shown in FIG. , Motor 65
The drive mechanism 65 is composed of a nut member (not shown) connected to the output shaft a through a gear mechanism (not shown) and a screw 65b screwed to the nut member.
Is well known). This screw 65b is lever 6
3 are connected by a pin 65c via a long hole 63d formed in the third hole.

The striker position detection switch 68 is a limit switch that is turned on and off, and is connected to the input port P3 of the CPU 81 of the control circuit 8 shown in FIG. The striker position detecting switch 68 is fixed to the plate 61b and is supported by the base 61. The contact 68a is connected to the cam surface 64 of the ratchet 64 as described above.
d is freely detachable.

Next, the latch mechanism 7 will be described.

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

The base 71 has a groove 71a through which the engaging member 62b of the striker 62 is inserted.
Fixed to A base 71 is provided at the bottom of the groove 71a.
A cushion body 76 fixed to the base member 71 is disposed to alleviate a collision between the base 71 and the engaging portion 62b when the engaging portion 62b is inserted into the groove 71a.

The latch 72 is rotatably supported on the base 71 by a pin 72a, is disposed so as to cross the groove 71a, and is engaged with an engaging member 62b of the striker 62, which will be described later. Claw 73b of pole 73
And a cam portion 74d for engaging and disengaging a contact 74a of a latch position detection switch 74 to be described later to turn on and off the latch position detection switch 74 by the rotation of the claw portion 73c. Are formed respectively. The pawl 73 is rotatably supported on the base 71 by a pin 73a.
Each of the claw portions 73b engaging with the corresponding b is formed. A spring 75 is stretched between the latch 72 and the pawl 73 configured as described above, and the latch 72 is disengaged by the spring 75 in a direction in which the engagement between the claw portions 72b and the claw portions 73b is released. The pawl 73 is always urged by the spring 75 in the direction in which the claw portions 72b and the claw portions 73b engage (these structures are well known).

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

Next, the operation will be described.

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

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.
The latch 2b is received in the engagement groove 72b while being inserted into the groove 71a, and the latch 72 is rotated counterclockwise in FIG. 8 against the urging force of the spring 75. As a result, as shown in FIG.
5, the pawl portion 72c and the pawl portion 73b engage, the rotation of the latch 72 is regulated by the pawl 73, and the engaging groove 72b engages with the engaging member 62b to cause the striker. 62 and the latch 72 are engaged with each other, and the latch position detection switch 74 is connected to the cam 72 d and the contact 7.
It is turned off by engagement with 4a. As a result, the luggage room 1 is in a semi-closed state in which the luggage door 4 is held against the vehicle body 2 in a state where the reaction force of the sealing member 5 is not acting, that is, a state where the space between the luggage door 4 and the vehicle body 2 is not completely sealed. 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.
c and the claw portion 62e are disengaged, and the restricting surface 62f and the claw portion 64c are arranged so as to be able to come into contact with each other, and the striker position detection switch 68 engages with the contact 68a and the cam surface 64d. And remains in the ON state.

When the latch position detection switch 74 is turned off, the signal is input to the port P4 of the CPU 81, and based on the signal, a signal for driving the motor 65a to rotate forward is output from the output ports P1 and P2. The motor 65a is normally rotated by the motor drive circuit 82 based on the signal. By the forward rotation of the motor 65a, the screw 65b is driven via a gear mechanism and a nut member as shown in FIG.
And the lever 63 rotates counterclockwise as shown in FIG. The rotation of the lever 63 causes the engagement pin 62c and the first engagement surface 63b to engage as shown in FIG. 10, and then the striker 62 moves with the movement of the screw 65b and the rotation of the lever 63. Are latched and slid so as to sequentially pass through the states shown in FIGS. 11 and 12 against the urging force of the spring 66. At this time, since the contact between the ratchet 64 and the regulating surface 62f and the claw portion 64c is maintained, the rotation of the ratchet 64 is restricted against the biasing force of the spring 67, and the ratchet 64 is caught between the claw portion 64c and the claw portion 62e. The on state of the disengagement and striker position detection switch 68 is maintained. The other end of the spring 66 is
It slides on the side surface of the support member 62a so as to get over d. When the striker 62 reaches the state shown in FIG. 12, the contact between the regulating surface 62f and the claw portion 64c is released, and the ratchet 6 is released.
4 rotates counterclockwise in FIG. 12 by the biasing force of the spring 67. Thereby, the contact 68a and the cam surface 64d
And 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, and based on the signal, the motor 65 is output from the output ports P1 and P2.
A signal for stopping the motor a is output, and the motor 65a is stopped by the motor drive circuit 82 based on the signal. At this time, due to the structure of the motor 65a, the motor 65a is continuously driven to rotate forward by inertia, and the striker 62 shown in FIG. Output port P
A predetermined time after a signal for stopping the motor 65a is output from P1 and P2 (measured in the CPU 81), the output port P
1 and P2, a signal for driving the motor 65a to rotate in the reverse direction is output.
The engagement pin 62c and the first engagement surface 63b rotate in the clockwise direction shown.
Is disengaged. Thereby, as shown in FIG. 14, the striker 62 is pushed out and slid by the urging force of the spring 66, and the claw 62e and the claw 64 are moved.
When c is engaged, it is disposed at the engaged position, that is, the retracted position B, in a state where the sliding is restricted by the engagement between 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 where the reaction force of the sealing member 5 has acted, that is, in a state where the space between the luggage door 4 and the vehicle body 2 is completely sealed. .

At this time, the rigidity of the luggage door 4 with respect to the vehicle body 2 is secured by the engagement between the claw portions 62e and the claw portions 64c. In the above-described reverse rotation driving of the motor 65a, a signal for stopping the motor 65a is output from the output ports P1 and P2 after a predetermined time (measured in the CPU 81) after a signal for reversely driving the motor 65a is output from the output ports P1 and P2. Output, and the motor 65
a is stopped by the motor drive circuit 82. or,
When the motor 65a is driven in the above-described reverse direction, the second engagement surface 63
When the striker 62 shown in FIG. 14 is disposed at the retracted position B so that the engagement pin 64b does not engage with the engagement pin 64b, a predetermined gap is provided between the engagement pin 64b and the second engagement surface 63c. E is formed.

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 pawl 73, and the striker 62 is disposed at the retracted position B and the ratchet 64 is moved to the position shown in FIG. Thus, in a completely closed state of the luggage room 1 in which the sliding of the striker 62 is restricted, the pawl 73 is rotated against the urging force of the spring 75 by operating an opener (not shown) in the vehicle cabin. When a person directly rotates the luggage door 4 to open the luggage room 1 while releasing the engagement between the claw portion 73c and the claw portion 73b, the latch 72 is moved to the striker 62 by the rotation of the luggage door 4. FIG. 6 shows the state of being dragged and the urging force of the spring 75.
It rotates clockwise to release the engagement between the engagement member 62d and the engagement groove 72b and the engagement between the cam 72d and the contact 74a. As a result, the luggage room 1 is opened and the latch position detection switch 74 is turned on.

When the latch position detection switch 74 is turned on, the signal is input to the port P4 of the CPU 81, and based on the signal, a signal for reversely driving the motor 65a is output from the output ports P1 and P2. , The motor 65a is driven in reverse by the motor drive circuit 82. The reverse rotation of the motor 65a causes the screw 65b to move in the direction F shown in FIG. 14 via the gear mechanism and the nut member, and the lever 63 to rotate clockwise in FIG. By the rotation of the lever 63, the engagement pin 64b and the second engagement surface 63c are engaged to rotate the ratchet 64 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 engaging pin 62c and the first
Since the engagement with the engagement surface 63b is released, the striker 62 is pushed and slid by receiving the urging force of the spring 66 as shown in FIG.
Is returned and arranged. At this time, since the first engagement surface 63b is disposed on the stopper 61g by the rotation of the lever 63, the engagement pin 62c and the first engagement surface 63b are moved by the pushing and sliding of the striker 62 described above. Is avoided, and the movement of the engagement pin 62c is effectively buffered by the stopper 61g. The motor 65a is provided with a ratchet 64.
When the contact between the contact 68a and the cam surface 64d is released and the striker position detection switch 74 is turned on with the rotation of the switch 81, the signal is input to the input port P3 of the CPU 81, and the output port is output based on the signal. A signal for stopping the motor 65a is output from P1 and P2, and is stopped by the motor drive circuit 82 based on the signal.

The luggage room 1 shown in FIGS. 8 and 9
When the luggage door 4 is urged to rotate in the open state of FIG. 4 by the collision and engagement between the latch 72 and the striker 62, as shown in FIG.
Only the latch slides from the engagement position A by itself against the urging force of the spring 66. Thereby, the collision between the striker 62 and the latch 72 is effectively mitigated. At this time, the lever 63a is not rotated, but the engagement between the engagement pin 64b and the second engagement surface 63c is maintained as shown in FIG. 9 to restrict the rotation of the ratchet 64. With the sliding of the striker 62, the claw portion 62e and the claw portion 6
4c does not engage. Thereafter, when the collision between the latch 72 and the striker 62 is resolved, the striker 62 is returned to the engagement position A again by the urging force of the spring 66, and the striker 62 is driven forward by the motor 65a. Latch-in sliding is performed.
In addition, when the striker 62 slides into the latch, the other end of the spring 66 slides on the side surface of the support member 62a, so that the latch 72 and the striker 62 that only perform the latch-in slide of the striker 62 alone. The size of the collision / engagement is such that the other end of the spring 66 can get over the cam portion 62d.

[0033]

According to the present invention, when the striker and the ratchet are engaged with each other, the sliding operation of the striker is restricted at the engaged portion. Therefore, by the engagement of the striker and the latch, the rigidity for completely closing the door with respect to the vehicle body is secured, and an unexpected load applied to the striker supported by the drive mechanism can be effectively reduced. The drive mechanism can be protected.

Further, since the rotation of the ratchet is restricted by the regulating surface and the ratchet rotates only when the ratchet is disengaged from the striker, the position of the striker can be detected by the rotation of the ratchet. Becomes Therefore, two positions of the striker can be detected by one switch means which is turned on / off by the rotation of the ratchet, and the number of parts and cost can be reduced.

[Brief description of the 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. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a sectional view taken along line GG of FIG. 2;

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.

FIG. 8 is an operation explanatory view of FIG. 6;

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

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

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

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

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

FIG. 14 is an operation explanatory view of FIG. 2;

FIG. 15 is an operation explanatory view of FIG. 2;

FIG. 16 is an operation explanatory view of FIG. 2;

[Explanation of symbols]

 61 base 62 striker 64 ratchet 65 drive mechanism 68 striker position detection switch (switch means) 72 ratchet 62f regulating surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 65/19 B60J 5/10 E05B 65/32 E05F 15/10 E05B 65/20

Claims (2)

(57) [Claims] 1. A base, a striker slidably supported by the base and adapted to pull in a latch engaged by a sliding operation, a driving mechanism linked to the striker, and rotatably supported by the base. A door closer device having a ratchet which is disengaged from the striker by a rotating operation. 2. The apparatus according to claim 1, further comprising: a regulating surface formed on said striker for regulating the rotation of said ratchet; and switch means fixed to said base and turned on and off by the rotation of said ratchet. A door closer device as described.