JPH09291735A - Door closer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically return an active latch to its normal position by the closing of a door even if the active latch takes an abnormal position by freely rotating the active latch in one direction and regulating its rotation in the other directions. SOLUTION: A latch 1 selectively taking a opening state, a half closed state or a full closed state for a door against the member of a car body side is maintained in its position by a pole 8. An electric motor M is actuated by detecting the closed state of the door, and by its output an active lever 20 is moved along a certain linear locus. By this mechanism, an active latch 18 pivotally supported by the active lever 20 is made to be freely rotated in one direction, and its rotation in the other direction is regulated by the arm 22 of an active pole 21. Thus, even if the active latch 18 takes an abnormal position with respect to a latch lever 12, this is automatically returned to its normal position by the closing of the door.

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 automatically opening a door in a non-fully closed (half) state to a fully (fully) closed state.

[0002]

2. Description of the Related Art A side door of a vehicle can be fully closed by engaging a striker, which is a body-side member of the vehicle, with a latch forming a part of a door lock device equipped on the side door. To be As shown in FIG. 6, the latch 1 is rotatable around the pin 2 and the spring 3
Under the urging force of, the direction is always forced in one direction. The latch 1 includes an engagement groove 5 for receiving the striker 4, a first claw portion 6 provided around the engagement groove 5 for forming a completely closed state of the door, and a second hook for forming a partially closed state of the door (half).
And the projection 9 of the pole 8 can be engaged with both the claws 6 and 7.

The pole 8 is rotatable about a pin 9'and is constantly forced by a spring 10 in the direction of the latch 1. The pawl 8 can be rotated counterclockwise by the movement of a pin 11 'of an open lift lever 11 of the door lock device. In the open state of the door, the engagement groove 5 faces to the right as viewed in FIG. 6, and the protrusion 9 of the pole 8 contacts the outer peripheral surface 12 of the latch 1. When the door is closed, the striker 4 enters the engaging groove 5 and the latch 1
Is forced to rotate in the counterclockwise direction so that the protrusion 9 engages with the second pawl portion 7 to create a non-complete (half) closed state or a non-complete (half) latched state of the door, and By the closing operation, the projecting portion 9 engages with the first claw portion 6 to create a completely (full) closed state of the door, that is, a fully (full) latched state (the state shown in FIG. 6).

In the above-mentioned door closing operation, when the operating force is weak, the protrusion 9 of the pole 8 is engaged with the second pawl 6 until the door is in a completely closed (half) state. The closing operation of may end. Therefore, the door in the non-complete (half) state is automatically closed by using the door closer mechanism. Examples of this type of door closer are disclosed in JP-A-2-96079 and JP-A-6-50045.

[0005]

The door closer mechanism is
The latch lever for rotating the rotation shaft of the latch is brought into contact with an active latch fixed to an active lever that is moved up and down by an electric motor, and the latch lever is rotated according to the movement of the active latch. When the door detects a non-complete (half) closed state, the electric motor operates the active lever and transmits this movement to the latch lever via the active latch. The door is automatically moved from the position corresponding to the (half) closed state (non-complete (half) latched state) to the position corresponding to the door fully (full) closed state (complete (full) latched state).

However, sometimes, the latch lever gets over the active latch, the movement of the active latch is not correctly transmitted to the latch lever, and an abnormal state is created in which the active latch misses the latch lever.

Therefore, it is an object of the present invention to solve the above-mentioned problems of the prior art.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a first position in which a door can be opened with respect to a member on the vehicle body side, and a second position in which a door is in an incompletely closed state. ,
And a latch that selectively takes a third position to bring it into a fully closed state, a pole that maintains one of the above positions of the latch, an electric motor that operates by detecting a non-fully closed state of the door, and a constant output of the electric motor. An active lever that moves along a straight line trajectory, an active latch that is rotatably supported by the active lever, is restricted from rotating in one direction, and is free to rotate in the other direction, and is fixed to the latch and faces the active latch. A latch lever having a free end is provided, and the active lever is restricted from rotating in one direction, so that the active latch moves the latch lever to the third position.
Provided is a door closer device that rotates to take a position.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. Latch 1
The latch lever 12 is fixed to the pin 2 of the door, and the pin 9'of the pole 8 is connected to the lift lever 11 of the open system of the door lock device.
The pin 11 ′ of the lift lever 11 is inserted into the mounting holes 14 and 15 of the open lever 13 and the hole 16 of the pole 8.
In response to the movement of the lift lever 11 operated in response to the opening / closing operation of the door, the pin 11 'causes the pole 8 to move to the pin 9'
Is rotated clockwise (as viewed in FIG. 6) to release the contact of the projection 9 with the claws 6 and 7. That is, the open lever 13 is rotatable in the A or B direction, and in the example of FIG.
When the lift lever 11 is rotated in the direction, the lift lever 11 is rotated in the direction B, the pawl 17 is rotated in the direction C, and the pin 11 'is pushed down.
Next, the pole 8 is rotated in the D direction, and the projection 9 is fixed to the claws 6, 7
Free from.

The free end of the latch lever 12 is opposed to the claw 19 of the active latch 18 which receives the biasing force of the spring. The L-shaped active latch 18 is rotatably pinned to the active lever 20, and the active pawl or cancel lever 21 which receives the biasing force of the spring is pinned to the active lever 20. The active pole or cancel lever 21 is substantially V-shaped, with a first arm 22 abutting the free end 23 of the active latch 18 and having a long second arm 24.
The contact between the free end 23 and the first arm 22 prevents the active latch 18 from rotating counterclockwise as viewed in FIG.

When the pole switch 25 (see FIG. 1) detects the incomplete (half) closed state of the door, the electric motor (M) is operated to rotate the output lever 26 thereof, and the active lever 20 is seen in FIG. Move downward. As a result, the claw 19 of the active latch 18 contacts the free end of the latch lever 12, and the latch lever 12 moves in the E direction (see FIG. 2).
The pin 2 and the latch 1 integrated with the latch lever 12 are automatically moved from the non-complete (half) latched position to the full (full) latched position. When the active latch 18 contacts the latch lever 12, the free end 23 of the active lever 18 contacts the active pole, that is, the first arm 22 of the cancel lever 21, and the active latch 18 rotates counterclockwise (as viewed in FIG. 2). Since the rotation of the latch lever 12 is blocked, the latch lever 12 can be rotated in the E direction. The active latch 18 can be rotated clockwise.

During a door closing operation, when an object such as clothes or baggage is sandwiched between the door and the body and the door is changed from the open state to the incomplete (half) closed state, the door closing operation by the door closer is canceled. Need to let. When an object is sandwiched between doors and the handle is operated to open the door, the intermediate lever 27 rotates counterclockwise as viewed in FIG. Therefore, the open lever 13 rotates in the F direction (corresponding to the B direction in FIG. 1), and the same operation as the door opening operation described with reference to FIG. 1 is obtained. This movement of the intermediate lever 27 causes the free end 28 of the intermediate lever 27 to come into contact with the second arm 24 of the active pole 21 so that the active pole 2
1 is moved to the position shown by the solid line in FIG. As a result, the engagement between the first arm 22 of the active pole 21 and the free end 23 of the active latch 18 is released, and the active latch 18 enters the free rotation state.

When the pole switch 25 detects the door incomplete (half) closed state, the electric motor (M) pushes down the active lever 20 and the active latch 18 as described with reference to FIG. First arm 22 and free end 23 of active latch 18
Since the engagement with is released, even if the claw 19 comes into contact with the latch lever 12, the active latch 18 freely rotates and the latch lever 12 does not rotate. Thus, there is no transition from the non-fully closed (half) state of the door to the fully (full) closed state, and the door opening operation is performed.

At the time of the above-mentioned operation, the free end of the latch lever 12 is, as shown in FIG.
9 is located below 9, and enables the active latch 18 to rotate counterclockwise when the latch lever 12 rotates or the active pole 21 rotates counterclockwise. However, when the door is opened during the cancel operation, the free rotation of the active latch 18 sometimes causes an abnormal state in which the free end of the latch lever 12 is located above the pawl 19 as shown in FIG. In this case, the door closing operation causes the latch 1 to rotate the latch lever 12 counterclockwise, and the active latch 1 is attached to the free end of the latch lever 12.
8, the claw 19 is brought into contact with the active latch 1 as shown in FIG.
8 is freely rotated clockwise to obtain the normal state shown in FIG.
This abnormality avoidance is performed by the active latch 18 shown in FIGS.
Seen from the above, it can be obtained by allowing free rotation in the clockwise direction. In order to avoid this abnormal condition, as shown in FIG.
The free end of the latch lever 12 and the side surface that abuts on the claw portion 19 of the active latch 18 is an inclined surface 29.
The latch lever 12 rotates counterclockwise by the above-mentioned door closing operation to freely rotate the active latch 18, but the inclined surface 29 reduces the slip and the contact stroke of both of them at the contact portion, thereby quickly It enables the latch lever 12 to return to its normal position.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of an open system of a door lock device.

FIG. 2 is a perspective view showing a portion of a door closer of the door lock device.

FIG. 3 is a perspective view for explaining a cancel operation.

FIG. 4 is a diagram showing a normal relationship between an active latch and a latch lever.

FIG. 5 is a diagram showing an abnormal relationship between an active latch and a latch lever.

FIG. 6 is a plan view showing a relationship between a latch and a pole.

[Explanation of symbols]

 1 Latch 5 Engagement groove 6, 7 Claw 8 Pole 9 Projection 11 Lift lever 12 Latch lever 13 Open lever 17, 19 Claw 18 Active latch 20 Active lever 21 Active pole (Cancel lever) 25 Pole switch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryujiro Akizuki 2-1, Asahi-cho, Kariya city, Aichi Prefecture Aisin Seiki Co., Ltd.

Claims (4)

[Claims] 1. A latch that selectively takes a first position for opening a door with respect to a member on the vehicle body side, a second position for setting a non-fully closed state, and a third position for completely closing the door. ,
A pole that maintains any of the above-mentioned positions of the latch, an electric motor that operates by detecting the incompletely closed state of the door, an active lever that moves along a fixed linear trajectory by the output of the electric motor, and a rotatably supported active lever And a latch lever fixed to the latch and having a free end opposed to the active latch,
A door closer device in which an active latch rotates a latch lever so that the latch takes a third position by restricting rotation of the active lever in one direction. 2. The door closer device according to claim 1, wherein when the latch lever comes into contact with the active lever due to the rotation of the latch lever during the closing operation of the door, the active latch rotates in the other direction. 3. An active pole, which is rotatably supported by the active lever, restricts rotation of the active lever in one direction, and is free to rotate in the other direction.
Door closer device described. 4. The door closer device according to claim 3, further comprising an inclined surface formed at a free end of the latch lever and contacting the active latch.