JPH0814215B2 - Door closing device for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial field of application” The present invention relates to a base member on a door side capable of closing an opening of a vehicle body and a base member swingably supported by the base member. A lock mechanism having a latch member capable of engaging and disengaging the fixed striker and restraining the door in the closed state and releasing the restraint is provided, and the latch member is fully latched from the half-latch position via the drive unit by power. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closing device for an automobile door that swings to a position and pulls the door to a closed state to be restrained.

“Prior Art” Improves safety by preventing the door from running in a half-latched state, and also allows doors to be closed without requiring a large operating force, and the operation noise when closing is reduced. For example, a door closing device is installed for the purpose of enhancing the sense of quality.

2. Description of the Related Art Conventionally, as a door closing device for this type of vehicle, there is, for example, a device used for a rear door.

That is, a striker is fixed to the periphery of the opening of the vehicle body, a lock mechanism is attached to the door side, and a latch member is swingable to engage and disengage the striker to lock and unlock the door in a closed state. It is supported by members. On the other hand, since the window glass that can be stored inside the door moves up and down as if to grab the lock mechanism, the main body of the door closing device is installed at a position slightly away from the lock mechanism, and the main body of the door closing device is driven by power. A possible output member is provided, the connecting member extends from the output member to the lock mechanism side, and the tip end of the connecting member is connected to the input end side of the close lever rotatably supported by the lock mechanism side base member. When the connecting member is pushed in by the power through the output member, the close lever rotates and the output end of the close lever comes into contact with the latch member to swing the latch member from the half latch position to the full latch position. There is something.

[Problems to be Solved by the Invention] However, in such a conventional door closing device for an automobile door, by pushing in the connecting member, the pushing force is transmitted to the closing lever and swings, and the closing lever acts as the latching member. Since the latch member swings from the half-latch position to the full-latch position by abutting and pushing out, a large pushing force is required, so that a large pushing force is applied to the connecting member, and in some cases, the connecting member is pushed. There was a problem that it was not easy to use because the buckle buckled, the force was not reliably transmitted to the close lever, and the malfunction occurred.

If a pulling force is applied to the connecting member by changing the connecting position between the connecting member and the close lever, for example, the connecting member may interfere with the inside lever for releasing the engagement between the latch member and the striker, There is a problem that the connection position cannot be changed with the configuration as it is.

The present invention has been made in view of such conventional problems, and with a simple structure, pulling force is applied to the connecting member so that buckling does not occur, and the pulling force is accurately closed. It is an object of the present invention to provide a vehicle door closing device that is excellent in usability by being transmitted to the lever so that the latch member reliably swings from the half-latch position to the full-latch position to smoothly perform the door closing operation. .

"Means for Solving the Problem" The gist of the present invention for achieving such an object is to provide a base member on a door side capable of closing an opening of a vehicle body and a swingable support on the base member. A locking mechanism having a latch member capable of engaging with and disengaging from a striker fixed to the periphery of the opening of the vehicle body and restraining the door in a closed state and releasing the restraint. A door closing apparatus for an automobile, capable of swinging a member from a half-latch position to a full-latch position to draw a door into a closed state and restraining the door, the device being rotatably supported by the base member and abutting on the latch member side. And a closing lever that can swing the latch member from the half-latch position to the full-latch position, and a pull lever that extends from the power source to the base member side and is pulled by the power source. And a connecting member that is rotatably supported by the base member, the connecting member is connected to one end, and the output tooth portion is engraved at the other end, and the connecting member rotates in the forward direction. In the vehicle door, the drive portion is provided with a sector gear member in which the output tooth portion meshes with the input tooth portion engraved on the close lever so that the close lever rotates in the opposite direction. It exists in the door closing device.

"Operation" The door is in the closed state, and the closing lever is in the standby position apart from the latch member.

When the door is closed and the latch member is half-engaged with the striker to reach the half-latch position, the connecting member is pulled by the power, one end of the sector gear member is pulled, and the sector gear member rotates in the forward direction.

When the sector gear member rotates in the forward direction, the close lever rotates in the reverse direction because the output tooth portion of the sector gear member meshes with the input tooth portion of the close lever.

As a result, the close lever comes into contact with the latch member side to swing the push latch member from the half latch position to the full latch position. As a result, the latch member is completely engaged with the striker, and the door can be pulled in and restrained in the closed state.

When the latch member reaches the full-latch position, for example, the power is used to reverse the close lever to separate it from the latch member side and return it to the standby position.

To do so, the connecting member is pushed in to rotate the sector gear member in the opposite direction. At this time, since no reaction force is applied to the closing lever from the side of the latch member, the force with which the connecting member is pushed is relatively small, and the connecting member does not buckle.

That is, the connecting member operates smoothly, and the craze lever can be reliably swung between the standby position and the pushing position via the sector gear member.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

 1 to 9 show an embodiment of the present invention.

As shown in FIG. 2, an opening 12 is formed in the rear portion of the side member 10 of the vehicle body so as to be able to move in and out of the rear portion of the vehicle compartment (not shown). A rear door 20 is pivotably attached to the front edge of the opening 12 so as to open and close the opening 12.

A striker 15 is fixed to the rear edge of the opening 12.
A lock mechanism 30 that is engaged with the striker 15 and can restrain the rear door 20 in a closed state is attached to the rear door 20.

The rear door 20 is provided with a base member 41 which is a main body of the door closing device 40 at a position separated from the lock mechanism 30.

As shown in FIGS. 1 and 6 to 9, the lock mechanism 30
The base member 31, which is the main body of the above, includes a main wall 32 along the inner surface of the rear door 20, and a sub-wall 33 in which the rear end portion of the main wall 32 is bent in the thickness direction of the rear door 20. However, in FIGS. 7 to 9, the sub-wall 33 is omitted.

A latch member is provided on the rear surface of the sub-wall 33 so as to engage and disengage the striker 15 to restrain the rear door 20 in the closed state and release the restraint.
34 is pivotably supported by a pivot 34a. Also,
On the rear surface portion of the sub-wall 33, there are provided pole members 35 capable of being restrained respectively in a half-latch position where the latch member 34 is engaged with and disengaged from the latch member 34 to half-engage the striker 15, and a full-latch position where the latch member 34 is fully engaged. Has been.

On the main wall 32, a relay lever 36 that is in contact with the pole member 35 and is capable of rotating the pole member 35 is supported so as to be swingable in a substantially vertical direction.

An inside lever 37 is swingably supported on the main wall 32, and an outside lever 37 is provided on the front surface of the sub wall 33.
38 is swingably supported. The inside lever 37 and the outside lever 38 can be engaged and disengaged from the latch member 34 by rotating the pole member 35 via the relay lever 36.

On the front surface of the sub wall 33, a cam member 42 having a pivot shaft 34a as the same rotary shaft is rotatably supported. A cam surface 43 is formed on the peripheral edge of the cam member 42. The cam surface 43 has a large diameter surface 43a with a long radius from the pivot 34a and a small diameter surface 43b with a short radius.
And have. Full-latch position detection switch capable of detecting the full-latch position of the latch member 34 by contacting the cam surface 43
44 is arranged, and similarly, the cam member 43 comes into contact with the latch member 34.
A half-latch position detection switch 45 capable of detecting the half-latch position of is disposed.

The main wall 32 of the base member 31 has a tip portion 42a of the cam member 42.
There is provided a closing lever 46 which is capable of swinging the latch member 34 from the half-latch position to the full-latch position by abutting against. The closing lever 46 is pivotally supported by a pivot shaft 46a and is biased counterclockwise by a spring member 46c. Toothed portions 46b are formed in the peripheral portion of the close lever 46 in the circumferential direction centering on the pivot 46a.

Similarly, a sector gear member 47 is pivotally supported by a pivot shaft 47a on the main wall 32, and a sector tooth 47b that meshes with a tooth portion 46b of a close lever 46 is formed at one end of the sector gear member 47.

In order to maintain a proper meshing state between the tooth portion 46b of the close lever 46 and the sector tooth 47b of the sector gear member 47, a force member 48 is installed on the pivot shafts 46a and 47a. Similarly, the base member is contacted with the meshing portion between the tooth portion 46b and the sector tooth 47b.
A step 48b is formed in the forcing member 48 to press the meshing portion against the projection beads 31c and 31d formed on the 31st side and maintain an appropriate meshing state.

The main wall 32 is provided with a standby position detection switch 49 that is in contact with the close lever 46 and can detect the standby position.

A connecting rod 51, which is a connecting member, is connected to the other end of the sector gear member 47, and the tip end of the connecting rod 51 is a door closing device.
40 is extended to the base member 41 side.

A drive motor 50, which is a power source, is fixed to the base member 41,
A pinion 53 rotatable by a drive motor 50 via a speed reduction mechanism 52 is provided. The output member 54 is attached to the base member 41.
Is rotatably pivoted by a pivot 54a, and teeth 54b are engraved on the circumference of the output member 54 around the pivot 54a, and the teeth 54b mesh with the pinion 53.

The base member 41 is provided with cut-and-raised portions 41c and 41d, which abut on both end edges of the output member 54 and regulate the rotation amount thereof.

A connecting bracket 55 is tacked to the output member 54, and the tip end of the connecting rod 51 is fitted and connected to the connecting bracket 55.

A flange portion 41a extends from the base member 41 to the base member 31 side, and similarly, a connecting projection portion 31a extends from the base member 31 to the flange portion 41a side. Projection part 31a for connection
A lower hole 31b is bored in the flange portion 41a, and a burring hole portion 41b into which a fastening screw (not shown) can be screwed is bored in the flange portion 41a. The burring hole 41b is tapped. The burring hole 41b is provided in the pilot hole 31b of the connecting projection 31a.
By rotatably fitting, the base member 31 and the base member
41 and 41 are swingably connected to each other.

The output terminals of the full-latch position detection switch 44, the half-latch position detection switch 45, and the standby position detection switch 49 are connected to the door control unit 60, respectively. A lead wire is extended from the door control unit 60 and connected to the power feeding control unit 65.

The base member 31 is provided with an inversion switch (not shown) capable of detecting the unlocking operation of the inside lever 37 and the outside lever 38, outputting the detection signal to the door control unit 60, and rotating the drive motor 50 in the reverse direction. Has been.

 Next, the operation will be described.

In order to assemble the lock mechanism 30 and the door closing device 40 on the rear door 20 side, a common hole 31b formed in advance in the projection 31a for coupling the base member 31 on the lock mechanism 30 side and the flange portion 41a of the base member 41, Insert the fastening screw into 41b and temporarily fix it,
The base member 31 and the base member 41 are swingably connected to each other. Further, the other end of the sector gear member 47 and the output member 54 are connected by the connecting rod 51.

Next, the base member 31 of the lock mechanism 30 is fixed to the rear edge of the rear door 20 so that the latch member 34 is disengaged from the striker 15. On the other hand, the base member 41 of the door closing device 40 is temporarily fixed to the front position of the lock mechanism 30 of the rear door 20.

At this time, for example, the sector teeth 47b of the sector gear member 47
Correctly meshes with the tooth portion 46b of the close lever 46, receives the force from the output member 54 via the connecting rod 51 and transmits it to the close lever 46, and if the close lever 46 operates correctly, then the state The base member 41 is fixed with.

On the other hand, when temporarily fixing the base member 41, the sector gear member 47
The other end of the connecting member of the output member 54 and the connecting portion of the output member 54 is too long or too short, the other end of the sector gear member 47 is pushed or pulled by the connecting rod 51. When the connection is made in the state, the sector teeth 47b of the sector gear member 47 and the tooth portion 46b of the close lever 46 do not mesh properly, and if the close lever 46 does not operate correctly, the connection projection 31a has a pilot hole 31b. Burring hole 41b while mating
The base member 41 may be gradually swung so as to rotate.

When the base member 41 is gradually rocked, the delivery length between the other end of the sector gear member 47 and the connecting portion of the output member 54 is slightly changed accordingly, and the delivery length is easily fine-tuned. can do.

The delivery length is adjusted and the sector teeth of the sector gear member 47 are adjusted.
47b and the tooth portion 46b of the close lever 46 are properly meshed,
After the close lever 46 operates correctly, the fastening screw is firmly tightened and the base member 41 is fixed, whereby the lock mechanism 30 and the door closing device 40 are fixed at predetermined positions.

In FIG. 1, when the rear door 20 is in the open state,
The close lever 46 is in the standby position, and the close lever
The standby position detection switch 49 is in contact with 46.

At this time, the contact piece of the full latch position detection switch 44 is in contact with the large diameter surface 43a of the cam member 42, and the contact piece of the half latch position detection switch 45 is in contact with the small diameter surface 43b of the cam member 42.

Close the rear door 20 and latch the striker 15
When the 34 is engaged and the latch member 34 is in the half-latch position, the contact piece of the half-latch position detection switch 45 becomes the cam member.
The small diameter surface 43b of 42 comes into contact with the large diameter surface 43a.

As a result, the door control unit 60 and the power feeding control unit 65 operate and the drive motor 50 starts. When the drive motor 50 is started, the output member 54 rotates counterclockwise in FIG. 1 about the pivot 54a via the reduction mechanism 52 to the pinion 53.

When the output member 54 rotates, the connecting rod 51 is pulled, whereby the sector gear member 47 swings counterclockwise about the pivot shaft 47a.

When the sector gear member 47 swings counterclockwise, the close lever 46 reverses and rotates clockwise due to the engagement of the sector tooth 47b and the tooth portion 46b. As a result, the close lever 46 comes into contact with and pushes into the tip portion 42a of the cam member 42.

When the cam member 42 is pushed in, in FIG.
It swings counterclockwise around a, and the latch member 34 swings counterclockwise integrally with the cam member 42.
Fully engaged to full latch position. This allows
The rear door 20 is restrained in the closed state.

When the latch member 34 reaches the full latch position, the contact piece of the full latch position detection switch 44 comes into contact with the large diameter surface 43a of the cam member 42 and the small diameter surface 43b. As a result, the door control unit 60 and the power feeding control unit 65 operate and the drive motor 50 rotates in the reverse direction.

When the drive motor 50 rotates in the reverse direction, the output member 54 moves the pivot 54a.
Is rotated clockwise around and the connecting rod 51 is pushed in. When the connecting rod 51 is pushed in, the sector gear member 47
Swings clockwise about the pivot 47a, and the closing lever 46 reverses and pivots counterclockwise about the pivot 46a.

As a result, the closing lever 46 moves the tip of the cam member 42.
Leave from 42a. During this time, the connecting rod 51 receives a compressive force in the axial direction, but the closing lever 46 and the sector gear member 47
Since only a reaction force when rotating is applied, the compression force is a relatively small force, and the connection rod 51 does not buckle due to the compression force.

The close lever 46 separates from the tip end portion 42a of the cam member 42 and eventually comes into contact with the stopper piece 31e. Before and after, the standby position detection switch 49 contacts the close lever 46 as shown in FIG.

As a result, the door control unit 60 and the power feeding control unit 65 operate and the drive motor 50 stops rotating.

When swinging the latch member 34 from the half-latch position to the full-latch position, for example, when the inside handle is operated, the operation of the inside lever 37 is detected by a reversing switch (not shown), and the detection signal is detected by the door control. Output to the unit 60, and the drive motor 50 is rotated in the reverse direction.

As a result, the closing lever 46 moves the tip of the cam member 42.
The retracting operation is performed from 42a, and the latch member 34 does not swing to the full latch position. As a result, it is safe even when an object or the like is caught in the rear door 20 and is in a half-locked state.

In the above embodiment, the connecting rod 51 is used as the connecting member.
However, the present invention is not limited to this, and a pulling wire may be used, for example. In that case, when the closing lever 46 returns to the standby position, the closing lever 46 is rotated by the urging force of the spring member 46c.

[Advantages of the Invention] According to the vehicle door closing device of the present invention, the connecting member is pulled by power, and the pulling force is not directly transmitted from the connecting member to the closing lever, but to the closing lever via the sector gear member. The transmission is performed by engaging the sector gear member and the close lever with each other so that the connecting member does not buckle, and the pulling force is transmitted through the connecting member and the sector gear member. Accurately transmitted to the closing lever, the latch member reliably swings from the half-latch position to the full-latch position to smoothly open the door,
It is extremely easy to use without causing malfunction.

[Brief description of drawings]

Each drawing shows an embodiment of the present invention, FIG. 1 is a side view of a door closing device, FIG. 2 is a perspective view showing a mounted state of the door closing device, and FIG. 3 is a side view of a main part of the door closing device. FIG. 4 is a side view showing a drive motor, etc., FIG. 5 is a partial side view of a door closing device, FIG. 6 is a partial front view of the same, and FIGS. 7 to 9 show the operation of a latch member and a cam member, respectively. FIG. 10 …… side member 12 …… opening 15 …… striker 20 …… rear door 30 …… lock mechanism 31 …… base member 34 …… latching member 40 …… door closing device 41 …… base member (door closing device body) 46 …… Close lever 47 …… Sector gear member 50 …… Drive motor 51 …… Connecting rod (connecting member)

Claims (1)

[Claims] 1. A door closed state in which a door is capable of closing an opening of a vehicle body and a base member and a striker which is swingably supported by the base member and fixed to a peripheral edge portion of the opening of the vehicle body is engaged and disengaged. A lock mechanism having a latch member capable of being restrained and released from restraint is provided, and the power is used to swing the latch member from the half-latch position to the full-latch position via the drive unit to draw the door to the closed state. In a vehicle door closing device that can be restrained by means of a closing lever, the closing lever being rotatably supported by the base member and abutting against the latch member to swing the latch member from the half latch position to the full latch position. A connecting member that extends from the power to the base member side and is pulled by the power; and a connecting member that is rotatably supported by the base member. Input tooth formed on the closing lever so that the closing lever is rotated in the reverse direction when the connecting member rotates in the forward direction. A door closing device for an automobile door, wherein the driving portion is provided with a sector gear member with which the output tooth portion meshes.