JP3159373B2 - Vehicle door closer 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 closer device for a vehicle, which operates a closer mechanism in conjunction with rotation of a pole to shift a half-closed vehicle door to a completely closed state.

[0002]

2. Description of the Related Art Conventionally, as a vehicle door closer of this type, Japanese Unexamined Utility Model Publication No. 7-32148 and January 1996
The one shown in the Town Ace Noah Van new model manual issued by Toyota Motor Corporation on October 23 is known.

The former and latter conventional devices detect a half-closed state of a latch in conjunction with the movement of a pole. In particular, the latter conventional device is rotatably provided on a vehicle door side and is provided on a vehicle door. A latch including first and second engagement claws that can be engaged with a striker on the body side and protrude outward from the outer peripheral surface; and first and second latches rotatably provided on the vehicle door side. A pawl that engages with the engaging claw to restrict rotation of the latch, and creates a semi-closed state of the vehicle door by engaging the pawl and the first engaging claw of the latch when the striker and the latch are engaged; A latch mechanism that creates a fully closed state of the vehicle door by engaging the pawl and the second engagement claw of the latch when the striker and the latch are engaged, and completely rotates the vehicle door in the semi-closed state by rotating the latch. Claw to close Mechanism and, in which a switch mechanism for operating the closer mechanism by detecting the detection signal a half-closed state of interlocking and latches to the rotation of the pole during the engagement of the pawl and latch.

In this vehicle door closer device, the switch mechanism detects the rotation of the pole caused by the engagement of the pole with the first engagement portion of the latch, and recognizes the half-closed state of the vehicle door. The mechanism was operated to forcibly rotate the latch, and the vehicle door in the half-closed state was completely closed.

[0005]

However, in the above-mentioned conventional apparatus, the pawl rotates in accordance with the rotation of the latch to engage with the first and second engaging claws of the latch, and the latch operates on the vehicle door. Is rotated by the engagement with the striker due to the closing operation of the pole and the latch. May be disengaged from the engaging claw and stop at a position where the pawl tries to get over the second engaging claw of the latch. At this time, the switch mechanism does not detect the door half-closed state due to the pole trying to climb over the second engagement claw, and the switch mechanism does not detect that the vehicle door is not completely closed. There was a possibility that a malfunction that did not work would occur.

Therefore, an object of the present invention is to ensure more reliable operation of the closer mechanism.

[0007]

The technical measures taken in the present invention to solve the above-mentioned technical problems are as follows .
A predetermined range in the circumferential direction between the first engagement claw and the second engagement claw on the outer periphery.
A circle formed around the circumference and centered on the rotation center of the latch
An arc surface having an arc shape is provided , and the rotation of the pole is regulated by the arc surface when the vehicle door transitions from the semi-closed state to the fully closed state.

According to this technical means, even if the pawl is disengaged from the first engaging claw of the latch and the pawl stops at a position where the pawl tries to get over the second engaging claw of the latch, The pawl is held by the arc surface of the latch while being rotated when the pawl and the first engaging claw of the latch engage. Therefore, the half-closed state of the door is reliably detected by the switch mechanism, and more reliable operation of the closer mechanism can be ensured.

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a door closer device 1 includes a latch mechanism 2 and a closer mechanism 3, and is disposed in a slide door 4 which is opened and closed by a sliding operation. The provided striker 51
The slide door 4 is held in a closed state by engagement of the latch mechanism 2 with a latch 21 described later.

As shown in FIGS. 2 to 4, the latch mechanism 2 includes a latch 21 and a pawl 22. The latch 21 is disposed between the pair of base plates 23 and 24 fixed in the slide door 4 and opposed to each other at a predetermined interval, and is rotatably supported by the base plates 23 and 24 by pins 25. This latch 21 has a U-shaped groove 2
1a, and the striker 51 can enter into the U-shaped groove 21a with the closing operation of the slide door 4. The latch 21 is formed with first and second engaging claws 21b and 21c that can be disengaged from the pawl 22 by a resin piece 21f that covers a part of the outer peripheral surface 21e. The first and second engagement claws 21b and 21c are
The inclined surfaces 211b, 211c and the latch 21 project outward from the outer peripheral surface 21e of the latch 21 and are inclined so as to gradually project outward from the outer peripheral surface 21e.
And engagement surfaces 212b and 212c extending in the radial direction. Around the pin 25, a spring 2 whose one end is locked by the latch 21 and the other end is locked by the base plate 24.
7 is disposed, and the latch 21
7, the clockwise direction shown in FIG.
The striker 51 that has entered the inside is constantly urged to rotate in a direction of sending the striker 51 out of the U-shaped groove 21a. The pawl 22, like the latch 21, is disposed between the base plates 23, 24, and is rotatably supported on the base plates 23, 24 by pins 26. The rotation of the pawl 22 causes the first and second engaging claws 21 of the latch 21 to move.
b and 22c. Around the pin 26, a spring 28 having one end locked to the pawl 22 and the other end locked to the base plate 24 is provided. The pawl 22 receives the urging force of the spring 28 and is shown in FIG. It is constantly urged to rotate in a counterclockwise direction, that is, a direction in which it engages with the first and second engaging claws 21b and 21c of the latch 21.

In such a configuration, the striker 51
When the first engaging claw 21b and the pawl 22 are engaged with each other when the latch 21 is engaged with the latch 21, the half latch state (shown in FIG. 7) of the latch mechanism 2 is set, and the slide door 2 is held in a semi-closed state. . Further, when the striker 51 and the latch 21 are engaged with each other, the engagement of the second engagement claw 21c with the pawl 22 sets the latch mechanism 2 in a fully latched state (shown in FIG. 8), and the slide door 2 is completely closed. Hold with.

The latch 21 is provided with a pin 6 that can be linked with the closer mechanism 3. The closer mechanism 3 shown in FIG. 1 has a well-known structure and includes a motor 31 (FIG. 5).
Shown), a lever (not shown) operated by
By the operation of this lever, the pin 6 of the latch 21 is pushed to push the latch 21 against the urging force of the spring 27 so that the latch mechanism 2 is changed from the half latch state to the full latch state, that is, the slide door 4 in the half closed state is completely closed. Rotate to the state.

Between the first engaging claw 21b and the second engaging claw 21c of the latch 21, an arc-shaped arc surface 21d centering on the pin 25 is formed over a predetermined range in the circumferential direction of the latch 21. ing. This arcuate surface 21d is the first engagement claw 2
1b and the inclined surface 211c of the second engaging claw 21c.

On the base plate 24, a rotary type latch switch 7 and a limit type pole switch 8 are arranged. The latch switch 7 detects the half latch position of the latch 21 where the half latch state of the latch mechanism 2 is obtained and the full latch position where the full latch state is obtained.
Are connected via a long hole 71a. The connection pin 29 extends from the latch 21 to the input lever 71 through a long hole 24 a formed in the base plate 24. The pole switch 8 is turned on / off by the rotation of the pole 22, and the pole 2 when the latch mechanism 2 enters the half-latch state and the full-latch state.
The movable contact 81 is capable of contacting the detection block 30 fixed to the pole 22.

As shown in FIG. 5, the latch switch 7
The board-shaped half-latch contact 72 of the latch switch 7 is connected to the input port P1 of the CPU that controls the operation of the motor 31 of the closer mechanism 3 based on the detection signal of the pole switch 8 via the pole switch 8. . The movable contact 73 of the latch switch 7 is connected to the input port P2, and the board-like full latch contact 73 is connected to the input port P3. Also, the output port P4,
The motor 31 of the closer mechanism 3 is connected to P5.

Next, the operation will be described.

FIG. 6 shows the latch mechanism 2 when the slide door 4 is in the open state. In this state, the striker 51 and the latch 21 are not engaged, and the first and second engagement claws 21 b and 21 c of the latch 21 and the pawl 22 are
In a disengaged state. The latch 21 is provided with a spring 27
The U-shaped groove 21a is positioned so as to oppose the striker 51 under the urging force of the above, and the pawl 22 contacts the outer peripheral surface 21e of the latch 21 under the urging force of the spring 28. Further, in this state, the latch switch 7 is in the off state, and the pole switch 8 is in the on state due to the contact between the detection block 30 of the pole 22 and the movable contact 81.

In this state, when the sliding door 4 is closed, the striker 51 moves the U-shaped groove 21a of the latch 21.
And the latch 21 rotates counterclockwise in FIG. 6 against the urging force of the spring 27. Thereby, as shown in FIG. 7, the latch 21 is located at the half-latch position, the first engagement claw 21b and the pawl 22 are engaged, and the latch mechanism 2 enters the half-latch state. At this time, Paul 2
The spring 28 moves in accordance with the rotation of the latch 21 so as to get over the inclined surface 211b of the first engagement claw 21b.
After being once rotated in the clockwise direction shown in FIG. 6 against the urging force of FIG. 6, the urging force of the spring 28 again causes the urging force of the spring 28 at a position facing the engaging surface 212b of the first engaging claw 21b. In the direction to engage with the first engagement claw 21b.
The rotation of the latch 21 in the clockwise direction shown in FIG. 7 is regulated by the engagement between the pawl 22 and the first engagement claw 21b of the latch 21, and the slide door 4 is held in a semi-closed state.

In response to the operation of the latch mechanism 2,
As shown in FIG. 10, the latch switch 7 closes the half-latch contact 72 (latch switch half-on) when the latch 21 is at the half-latch position, and the pole switch 8 operates the pole 22 shown in FIG. After turning off once (the contact between the movable contact 81 of the pole switch 8 and the detection block 30 of the pole 22 is turned off), it turns on again by turning counterclockwise as shown in FIG. When the half-latch contact 72 is closed and the pole switch 8 is turned on, the input port P of the CPU is set.
1, an ON signal is input to P2. As described above, since the half latch state of the latch mechanism 2 is detected by both the latch switch 7 and the pole switch 8, the half latch state can be accurately and reliably detected.

When the latch mechanism 2 is in a half-latch state, that is, when the slide door 4 is in a half-closed state due to the closing operation of the slide door 4, the pawl 22 is driven by the first engaging claw 21b of the latch 21 depending on the closing state of the slide door 4. Engagement surface 212
b, the pawl 22 does not ride on the inclined surface 211c of the second engaging claw 21c of the latch 21 as shown in FIG.
Contact 1d. At this time, the pole 22 keeps the same rotation angle as the rotation angle shown in FIG. 7, and the contact between the movable contact 81 of the pole switch 8 and the detection block 30 of the pole 22 is maintained. As a result, as shown in section A of FIG. 10, the pole switch 22 maintains the ON state,
The operation of the closer mechanism 3 described later is ensured.

When an ON signal is input to the input ports P1 and P2 of the CPU, the CPU outputs a drive signal to the output ports P4 and P5 based on the ON signal. Thereby, the motor 31 of the closer mechanism 3 is driven to operate the closer mechanism 3. The operation of the closer mechanism 3 causes the latch 21 to rotate counterclockwise as shown in FIG. Thereby, as shown in FIG. 8, the latch 21 is located at the full latch position, the second engagement claw 21c and the pawl 22 are engaged, and the latch mechanism 2 enters the full latch state. At this time, Paul 22
Is rotated once clockwise as shown in FIG. 7 against the urging force of the spring 28 in accordance with the rotation of the latch 21 in order to get over the inclined surface 211c of the second engagement claw 21c. The second engaging claw 21c is rotated counterclockwise in FIG. 7 again by the biasing force of the spring 28 at a position facing the engaging surface 212c of the second engaging claw 21c to engage with the second engaging claw 21c. The rotation of the latch 21 in the clockwise direction shown in FIG. 8 is restricted by the engagement between the pawl 22 and the second engagement claw 21c of the latch 21, and the slide door 4 is held in a completely closed state.

In response to the operation of the latch mechanism 2,
As shown in FIG. 10, the latch switch 7 closes the full latch contact 74 (latch switch full on) when the latch 21 is at the full latch position, and the pole switch 8 rotates the pole 22 clockwise as shown in FIG. (The contact between the movable contact 81 of the pole switch 8 and the detection block 30 of the pole 22 is disconnected) once, and
The counterclockwise rotation turns on again. At this time, the half latch contact 72 remains closed. When the half latch contact 72 and the full latch contact 74 are closed and the pole switch 8 is turned on,
An ON signal is input to input ports P1, P2, and P3 of the CPU. As described above, since the full latch state of the latch mechanism 2 is detected by both the latch switch 7 and the pole switch 8, it is possible to accurately and reliably detect the full latch state.

When an ON signal is input to the input ports P1, P2, P3 of the CPU, the CPU outputs a drive stop signal to the output ports P4, P5 based on the ON signal.
Thereby, the driving of the motor 31 of the closer mechanism 3 is stopped.

After that, the motor 3 of the closer mechanism 3
In a state 1 after a predetermined time from the stop of the drive, the drive 1 is driven reversely to return the closer mechanism 3 to the above-mentioned initial state before the drive. The stop of the motor 31 at the time of the return operation is performed based on a signal from an original position switch (not shown) provided in the closer mechanism 3.

[0026]

According to the present invention, the first engagement of the outer periphery of the latch is achieved.
Formed over a predetermined range in the circumferential direction between the dowel and the second engaging claw
Circle with a circular arc centered on the center of rotation of the latch
It has an arc surface, and the arc surface allows the vehicle door to be completely closed from a semi-closed state.
To restrict the rotation of the pole during the transition to the closed state
Since the, even if the engagement between the first engagement claw pole and the latch and pawl out is stopped at a position to be climb over the second engagement claw latches, Paul, circle latch
Due to the arc surface, it is possible to hold the pawl and the latch while rotating at the time of engagement with the first engagement claw. As a result, the door half-closed state can be reliably detected by the switch mechanism, and more reliable operation of the closer mechanism can be ensured. Also, it is simple to change the shape of the latch.
Simple structure, no increase in number of parts, cost
It can be made to be economically advantageous.

[0027]

[Brief description of the drawings]

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

FIG. 2 is a front view showing a latch mechanism of the vehicle door closer device according to the present invention.

FIG. 3 is a sectional view showing a latch of a latch mechanism of the vehicle door closer device according to the present invention.

FIG. 4 is a sectional view showing a pole of a latch mechanism of the vehicle door closer device according to the present invention.

FIG. 5 is a circuit diagram showing a control circuit of the vehicle door closer device according to the present invention.

FIG. 6 is a front view showing the operation of the latch mechanism of the vehicle door closer device according to the present invention.

FIG. 7 is a front view showing the operation of the latch mechanism of the vehicle door closer device according to the present invention.

FIG. 8 is a front view showing the operation of the latch mechanism of the vehicle door closer device according to the present invention.

FIG. 9 is a front view showing the operation of the latch mechanism of the vehicle door closer device according to the present invention.

FIG. 10 is a timing chart showing an operation of a control circuit of the vehicle door closer device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Vehicle door closer 2 Latch mechanism 3 Closer mechanism 4 Slide door (vehicle door) 5 Vehicle body 8 Pole switch (switch mechanism) 21 Latch 22 Pole 28 Spring 51 Striker 21b First engagement claw 21c Second engagement claw 21d arc surface

Continuing from the front page (72) Inventor Yoshinobu Ogura 70-6 Ikegami, Tora-kuni, Kira-cho, Hazu-gun, Aichi Prefecture Examiner in Aisin Kiko Co., Ltd. Examiner Yasuto Tsujino (56) References JP-A-8-240050 (JP) , A) (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 65/32 B60J 5/00 B60J 5/06 E05B 65/20

Claims (1)

(57) [Claims] A latch and a vehicle door provided with first and second engagement claws rotatably provided on a vehicle door side and capable of engaging with a striker on a vehicle body side and projecting outward from an outer peripheral surface. A pawl rotatably provided on the side of the latch for restricting rotation of the latch by engaging with the first and second engaging claws of the latch, wherein the pawl at the time of engagement between the striker and the latch And the latch engages the first engagement claw to create a semi-closed state of the vehicle door, and when the striker engages with the latch, the pawl and the second engagement claw of the latch engage with each other. A latch mechanism for creating a completely closed state of the vehicle door by engagement, a closer mechanism for rotating the latch to fully close the vehicle door in a semi-closed state, and a first mechanism of the pawl and the latch With a nail In the door closing device for a vehicle having a switch mechanism in conjunction with the rotation of the pawl during engagement actuate the closer mechanism by detecting the detection signal a half-closed state of the latch, out of the latch
Between the first engaging claw and the second engaging claw in the circumferential direction.
Formed over a predetermined range and centered on the rotation center of the latch
And having an arc surface exhibiting an arc shape, for a vehicle characterized by restricting the rotation of the pole in the transition from the semi-opened state before <br/> Symbol vehicle door to a fully closed state by the arc surface Door closer device.