JPH082380Y2 - Car door closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a device for closing a side door of an automobile, and more particularly, for automatically closing a door closed to a half-latched state to a full-latched state. Of equipment.

[Conventional technology]

As a conventional side door automatic door closing device, an automatic door closing device incorporated in a door lock is used.

In addition, the device disclosed in Japanese Patent Publication No. 2-44986 (invention title "Vehicle door closing device") by the applicant of the present invention is, for example, a cam having a cam surface having a spiral shape or other shapes formed on a door or a vehicle body. On one side of the door or the other side of the vehicle body, where it does not interfere with the cam when the door is open, and when the door is closed to the half-latch state, the position where it can engage with the cam surface. After installing the striker, the door reaches the half-latch state, and then the cam is tilted or rotated in the required direction to move the striker while slidingly contacting the cam surface,
The door is pulled toward the vehicle body and closed in a fully latched state.

[Problems to be solved by the device]

In the case where the automatic door closing device is incorporated in the door lock, if the type of the door lock differs depending on the vehicle model, the automatic door closing device also needs to have a different structure, and there is a problem of lacking versatility.

The device described in the above patent publication can be installed separately from the door lock and has versatility, but since it is a separate body from the door lock, it is troublesome to adjust the timing with the operation of the door lock. If the timing is adjusted incorrectly, there is a possibility that the cam may tilt or rotate while the cam surface is not engaged with the striker.

Further, similar malfunction or malfunction may occur due to malfunction of the detection device that detects the half-latched state, deformation of the cam or striker, or the like.

INDUSTRIAL APPLICABILITY The present invention can be installed separately from a door lock, and can be surely closed in a full-latch state without causing the above-mentioned malfunction or malfunction, and a side door closing device for an automobile. Is intended to provide.

[Means for solving the problem]

In order to achieve the above object, the present invention is configured as follows.

A door-closing device for closing a door of a vehicle closed in a half-latch state to a full-latch state, wherein a plate-shaped striker (3) fixed to a vehicle body side or a door side at a required distance is provided. A guide lever (11) that is rotatably pivoted to the other of the vehicle body side and the door side and that abuts the striker (3) in a latch-free state when the door is closed, and a close lever that is disengaged from the striker (3). By forming the (10) and the fork in a fork shape and closing the door to the half-latch state, the guide lever (11) is pressed by the striker (3) to rotate, and the tip of the close lever (10) moves to the striker (3). ) The door closing cam (9) that is fed to the back side of the), and the door closing cam 9 rotated to the half-latch state, and the closing lever (10) is attached to the back of the striker (3). A door closing device for an automobile, comprising: a driving device that is rotationally driven to a full-latch state that engages with a surface.

[Action]

When the door is closed to the half-latch state, the guide lever (11) of the door closing cam (9) contacts the striker (3), the door closing cam (9) rotates slightly, and the tip of the closing lever (10) becomes It is forcibly sent to a position where it can be engaged with the back surface of the striker (3).

Therefore, if the door closing cam (9) is further rotated by the drive device (33) thereafter, the tip of the closing lever (10) is always engaged with the back surface of the striker (3) to fully latch the half-latched door. It can be securely closed up to the state, and there is no malfunction or malfunction such that the close lever (10) is operated while being disengaged from the striker (3).

〔Example〕

1 to 3 are partially cutaway plan views showing a door closing device of the present invention. FIG. 1 shows a latch-free state, FIG. 2 shows a half-latch state, and FIG. 3 shows a full-latch state.

In FIGS. 1 to 3, (1) is a pillar of a vehicle body of an automobile, and (2) is a side door of the automobile.

A striker (3) having a convex shape and having an inclined portion (3 ') formed at one end of the inner surface of the upper edge is fixed to the door (2).

The edge (4) of the pillar (1) facing the door (2) is provided with a through hole (5) at a position corresponding to the striker (3) and a cover (6) is attached to the outer surface thereof. . The cover (6) is in the shape of a hollow box whose cross section perpendicular to the plane of the drawing is U-shaped, and at least one of its side plates is placed inside the edge portion (4) through the through hole (5). A support (7) is formed by projecting.

The shaft (8) is erected on the support base (7), and the door closing cam (9)
Is pivotally attached.

The door-closing cam (9) has a close lever (10) and a guide lever (11) formed in a fork shape, and guide rollers (12) and (13) are rotatably supported at their tips, respectively. . At the base of the guide lever (11) is the shaft (8)
A circular arc-shaped guide groove (14) centering around is provided, and a switch (17) for full latch detection, which will be described later, is operated on the side opposite to the shaft (8) with respect to the close lever (10). Projections (15) are formed for this purpose.

A torsion spring (16) is fitted on the shaft (8), one end of which is used as a close lever (10) and the other end of which is a support base (7).
, And the closing door cam (9) is urged counterclockwise.

A switch (17) for detecting a half-latch is attached at an appropriate position on the support base (7). This switch (17)
It uses a "RMAL-ON" type micro switch,
In the latch-free state shown in the figure, the operating lever is pushed to the side edge of the close lever (10) to be "OFF", and becomes "ON" in the half-latch state shown in FIG. 2 and the full-latch state shown in FIG. Is done.

A switch (18) for detecting a full latch is attached to an appropriate position on the inner surface of the outer plate of the cover (6). This switch (18) uses a "NORMAL-OFF" type micro switch, which is "OFF" in the states shown in FIGS. 1 and 2, and in the fully latched state shown in FIG. ) Is pressed by the protrusion (15) so that it becomes “ON”.

On the other hand, a slider (19) engaged with the tip of the cord (20) is slidably fitted in the guide groove (14) along the guide groove (14). ) Is connected to the drive unit, which will be described below, through the cable conduit (21) supported by the pillar (1).

FIG. 4 is a plan view showing a drive unit, in which a gear shaft (23) is erected on a support base (22) mounted at a proper position of a vehicle body, and a sector gear (24) is rotatably supported. is there. Fasten the end of the cable conduit (21) to the proper position of the support base (22), and fix the end of the rope (20) protruding from the end with the locking metal fitting (25) near the edge of the fan gear (24). I'm wearing it.

A pinion (26) that meshes with the sector gear (24) is pivotally supported on the support base (22), and a worm gear (27) is integrally formed with the pinion (26) on the back surface of the support base (22). It is mounted coaxially so that it can rotate. The worm (28) meshing with the worm gear (27) is rotationally driven by a motor (29) with a reducer mounted at a proper position of the support base (22).

Further, a projection (31) for actuating the neutral position detection switch (30) mounted on the support base (22) is provided at the end of the sector gear (24) on the side where the cord (20) is engaged. Has been formed. The switch (30) is a “NORMAL-OFF” type micro switch, which is turned “ON” when pressed by the protrusion (31) shown in FIG. 4, and the sector gear (24) rotates clockwise in FIG. Then, when the protrusion (31) is separated, it is set to "OFF".

FIG. 5 shows the arrangement of the above-mentioned door closing device (32), drive device (33) and the like.

Signals from the two switches (17) and (18) of the door closing device (32) and the switch (30) of the driving device (33) are input to the control circuit (34) to control the motor (29). Is output.

The operation of the side door closing device configured as described above is as follows.

When the door (2) is open, the door closing cam (9) is stopped at a position rotated counterclockwise to the limit position as shown in the first illustration. In this state, the switch (17) is pressed by the close lever (10) and turned "OFF".
The switch (18) is separated from the protrusion (15) and
It is "F". Further, the cord (20) connected to the slider (19) extends from the cord conduit (21) when the slider (19) contacts the end of the guide groove (14) and is pulled. The fan gear (24) is at the position shown in FIG. 4 on the drive device (33) side, and the switch (30) for detecting the neutral position is pressed against the protrusion (31). Is turned off.

When closing the door (2), first, the surface of the striker (3) comes into contact with the guide roller (13) pivotally supported at the tip of the guide lever (11) of the door closing cam (9), and the door is closed. The movement of (2) causes the door closing cam (9) to rotate clockwise about the axis (8) against the biasing force of the torsion spring (16) as shown in the second illustration. By this rotation, the guide roller (12) pivotally supported on the tip of the close lever (10).
Is sent to the back side of the surface of the striker (3) along the inclined part (3 ') and becomes a half-latch state, and at the same time, the half-latch detection switch (17) is pressed by the close lever (10). It is released from and becomes "ON" and outputs the half latch detection signal (HL).

The half-latch detection signal (HL) is sent to the motor (29) via the control circuit (34) to activate the motor (29), and the worm (28), worm gear (27), and pinion (26) are activated. The sector gear (24) is rotated in the clockwise direction in FIG.

When the sector gear (24) rotates, the locking metal fittings (25)
Since the cord (20) attached by the guide is pulled along the conduit (21) in the direction of arrow A in FIG. 2, that is, toward the drive device (33), the slider (19) is guided. The door closing cam (9) is further rotated in the clockwise direction while moving while being in contact with the right end of the groove (14).

When the door closing cam (9) rotates to the position shown in FIG. 3, the door (2) is in a fully latched state and is closed by a normal door lock device provided in parallel with the illustrated device. At the same time, the projection (15) of the door closing cam (9) presses the switch (18) for full latch detection, and the full latch detection signal (F
L) is output.

The full-latch detection signal (FL) is sent to the motor (29) via the control circuit (34) to rotate the motor (29) in the opposite direction to cause the worm (28), the worm gear (27), and the pinion (26). ) Are rotated in the opposite directions to rotate the sector gear (24) counterclockwise.

As a result, the rope (20) moves to the door closing device (32) side along the cable conduit (21), but since the door (2) is fixed at the door closing position by the door lock device, the door closing cam (9). ) Is held in the position shown in FIG. 3 and the slider (19)
Moves in the guide groove (14) in the direction of arrow B shown in FIG. 3 to the left end of the guide groove (14).

When the sector gear (24) returns to the position shown in FIG. 4, the protrusion (31) presses the neutral plate detection switch (30) to output the neutral position detection signal (NL). The neutral position detection signal (NL) is input to the control circuit (34) and the motor (29)
To stop.

That is, when the door (2) is closed to the half-latch state manually or by the door closing drive means, thereafter, the door closing cam (9) is rotated by the driving force of the motor (29) to automatically close the door in the full latch state. be able to.

When opening the door (2), the door lock device may be unlocked and opened as usual. That is, in the fully latched state, the guide roller (12) at the tip of the closing lever (10) of the door closing cam (9) is located outside the shaft (8) as shown in FIG. Open the door outward and the close lever (10) will move to the striker (3).
The door closing cam (9) is rotated counterclockwise to the position shown in FIG. 1 by being pressed against the surface of the door, and the engagement with the striker (3) is released. At this time, since the slider (19) at the tip of the cord (20) is moved to the neutral position on the left end side of the guide groove (14), the door closing cam (9) rotates counterclockwise. Does not interfere.

[Effect of device]

(1) When the door is closed to the half-latch state, the guide lever of the door closing cam contacts the striker, the door closing cam is slightly rotated, and the tip of the closing lever is forced to a position where it can engage with the back surface of the striker. If the door is further rotated by the drive device, the tip of the closing lever will always engage the rear surface of the striker, and the half-latch door can be securely closed to the full-latch state. Therefore, there is no malfunction or malfunction such that the close lever is actuated by being removed from the striker.

(2) Since it is a door closing device that is installed separately from the door lock device, it can be applied regardless of the type of the door lock device or the vehicle type, and is highly versatile.

(3) Existing vehicles can be equipped without major modification.

[Brief description of drawings]

1 is a partially cutaway plan view showing a latch-free state of a side door closing device of the present invention, FIG. 2 is a partially cutaway plan view showing a half-latch state, and FIG. 3 is a full latched state. 4 is a partially cutaway plan view, FIG. 4 is a plan view showing a drive device, and FIG. 5 is a schematic view showing the arrangement of a door closing device, a drive device, and the like in a vehicle body. (1) Pillar (car body), (2) Door (3) Striker, (9) Door closing cam (10) Close lever, (11) Guide lever (14) Guide groove (17) Half latch detection switch (18) Full latch Detection switch (30) Neutral position detection switch (31) Protrusion (32) Door closing device, (33) Drive device

Claims (1)

[Scope of utility model registration request] 1. A door-closing device for closing a door of an automobile closed in a half-latch state to a full-latch state, the plate-like striker fixed to either one of a vehicle body side and a door side with a required distance. And rotatably attached to the other of the vehicle body side and the door side,
When closing the door, a guide lever that contacts the striker in the latch-free state and a close lever that comes off the striker are formed into a fork shape, and the door is closed to the half-latch state, and the guide lever is pressed by the striker to rotate. The drive mechanism that drives the door closing cam that feeds the tip of the closing lever to the back of the striker and the door closing cam that has rotated to the half-latch state, and further to the full-latch state where the closing lever engages the back of the striker. A door closing device for an automobile, comprising: