JPH0739784B2 - Automatic door closing device for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention allows a door of an automobile to be moved from a position in a so-called half-door state (a state at that time is referred to as a half-latch state) by driving means such as a motor. , Position in the fully closed state (the state at that time is called the full latch state)
Up to an automatic door closing device for automobiles that is forcibly closed.

[Conventional technology]

An example of this type of device is that disclosed in Japanese Utility Model Laid-Open No. 60-137067.

In this conventional device, a motor, which is a driving means, causes a close lever to rotate once through a worm and a worm wheel, and in the middle of the process, the close lever causes a latch in a locking device to move through a driven lever integrated with the latch. Then, it is forcibly rotated from the half-latch position (the position around the axis of the latch in the half-door state) to the full-latch position (the position around the axis of the latch in the full-latch state).

[Problems to be Solved by the Invention]

According to the conventional device as described above, the closing lever is
Since it always stops after making one rotation in the same direction, the next stop position, which is the start position, is likely to be misaligned. If this stop position is misaligned, the next operation timing will be misaligned and malfunction will occur. Or malfunction may occur.

Further, since the closing lever rotates over a range that is not directly necessary for the original operation, there is a problem that a wasteful space is required and the entire apparatus becomes large.

The present invention has been made for the purpose of solving such problems of the conventional technique and further improving safety.

[Means for Solving the Problems]

According to the present invention, the above-mentioned problem is solved by making the close lever reciprocating.

That is, in the automatic door closing device for an automobile of the present invention, the latch provided on the door side is accompanied by the opening / closing operation of the door,
There are an open position that completely disengages the striker provided on the vehicle body side, a half-latch position that barely engages the striker, and a full-latch position that fully engages the striker and can lock the door in the completely closed state. An automatic door closing device for an automobile having a door lock device capable of rotating, forcibly closing a door of a vehicle from a half-latch state, which is a half-door state, to a full-latch state, which is a completely closed state. By the driven lever integrally provided with the latch, and pivotally attached to the door side, and rotating from an original position deviated from the rotational locus of the driven lever to a predetermined operating position, A close lever that contacts the driven lever to rotate the latch from the half-latch position to the full-latch position, and In this way, the tip end of the rotary lever pivotally installed on the door side is bent into a U-shape to form a bifurcated shape, and the pair of engagement holes formed in the bifurcated portion are provided with the closing By connecting both ends of the end member fixed to the other end of the wire, one end of which is connected to the lever, the rotating lever is connected to the close lever,
The closing lever is reciprocally rotatable from an original position to an operating position, and an extension piece is connected to one piece of the bifurcated portion of the tip portion of the turning lever, and the extension piece is attached to the other piece of the bifurcated portion. The drive means that allows the end member to be disengaged from the engagement hole by bending in the opening direction, and the drive means that detects that the latch has reached the half-latch position from the open position side. Half-latch detecting means for operating the means so that the closing lever rotates from the original position toward the operating position; and detecting that the latch has reached the full-latch position,
A full-latch detection means for stopping the rotational movement of the closing lever in the operating position direction by the driving means, and actuating the driving means so that the closing lever returns toward the original position; An original position detection means for stopping the return operation of the closing lever by the driving means by detecting the return of the closed lever.

The close lever is preferably pivotally attached to the door so as to be rotatable about an axis that is orthogonal to the axis of rotation of the latch and driven lever.

[Action]

When the door is closed to the half-latch state, the half-latch detection means detects this and the drive means is operated, and the close lever is rotated from the original position to the operation position.

Along the way, the driven lever comes into contact with the close lever and is driven, and the latch is rotated together with the driven lever from the half latch position to the full latch position.
The door is forcibly closed from the half latched state to the full latched state.

When the door is in the full-latch state and the latch reaches the full-latch position, the full-latch detecting means detects that, and the driving means causes the closing lever to turn and return from the operating position to the original position.

During this time, the latch and the driven lever are not driven by the closing lever and are kept stopped at the full latch position.

When the close lever is returned to the original position, the original position detecting means detects that and the above-mentioned operation of the driving means is stopped.

After that, the door can be opened in the same manner as the conventional one by releasing the door lock device by the known door lock operating means.

In the unlikely event that the automatic closing device stops due to a failure during operation,
If any member cannot be restored while the wire is strained, bend the extension piece in the direction to open it with respect to the other piece of the bifurcated portion of the rotating lever, and move the end member of the wire. The wire can be easily separated from the turning lever by disengaging it from the engaging hole.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, (1) is a slide door of an automobile (hereinafter simply referred to as a door), which is guided by a slide roller, a guide rail, and the like (not shown) so that the side surface of the vehicle body (2) is initially closed. On the other hand, it is pulled out obliquely rearward, and is then slidably mounted parallel to the vehicle body (2).

As shown in FIGS. 1 to 4, the rear end surface (1a) of the door (1) faces the front inside of the vehicle body so as to be substantially parallel to the locus of the door (1) at the initial stage of opening the door. Is inclined,
A door lock device (3) is provided on the rear end face (1a).

The door lock device (3) comprises a latch 5 pivotally mounted in the door (1) with an axis (4) orthogonal to the rear end face (1a) of the door (1). The latch (5) is provided with a striker (6) (second part) provided at a rear end of an opening of a side part of the vehicle body (2).
(See FIG. 3 and FIG. 3), the open position (completely disengaged from the striker (6) as shown by the phantom line in FIG. 3 as the door (1) opens and closes. A) and a half latch position (b) that barely engages with the striker (6), as shown by the solid line in FIG.
As shown in phantom in FIG. 3, it is possible to fully engage the striker (6) and rotate about the axis (4) to the full latch position (c) where the door (1) can be restrained in the completely closed state. Is.

A driven lever (7) extending substantially upward is integrally provided on the upper end of the latch (5).

Reference numeral (8) is a pole integrally formed with an axis (9) parallel to the axis (4) of the latch (5). When the pole is located at the locking position shown by the solid line in FIG. It is possible to prevent the counterclockwise rotation in FIG. 3 from the half-latch position (b) or the full-latch position (c) in (5), and release from the locking position in the counterclockwise direction in FIG. By rotating with the shaft (9) in the direction, the engagement with the latch (5) is released, and the latch (5) can be freely rotated. When the latch (5) is stopped at the open position (a), the pole (8) rides on the outer peripheral edge of the latch (5) and stops at a position slightly closer to the releasing direction than the locking position. It has become. Therefore, the pole (8) stops at the locking position only when the latch (5) stops at either the half-latch position (b) or the full-latch position (c).

As shown in FIG. 4, an open lever (10) is fixedly fitted to the front end of the shaft (9) of the pole (8), and when the latch (5) reaches the locking position, the open lever (10) is opened. The pole piece (8) is brought into contact with the half-latch detection switch (11), which is a half-latch detection means provided at a proper position in the door (1), by operating the one-piece piece (10a) of the pole (8). ) Is located at the locking position.

In this embodiment, the half-latch detection switch (11) detects that the pole (8) has reached the locking position at the beginning of the closing operation of the door (1), so that the latch (5) is in the half-latch position. The fact that (b) has been reached can be accurately detected. However, as described above, the pole (8) reaches the locking position again when the latch (5) subsequently reaches the full latch position (c),
It is also possible to detect that the latch (5) has reached the full-latch position (c) by detecting that the half-latch detection switch (11) has been actuated for the second time. The full latch detection switch (20) can be omitted by providing the function of the full latch detection switch (20) described later.

The original function of the open lever (10) is to allow the door lock operation means such as the door handle (12) (see FIG. 1) to release the door lock device (3). Since this is not directly related to the present invention, detailed description will be omitted.

On the substantially horizontal support plate (13) provided above the door lock device (3) in the door (1), the intermediate bent portion of the close lever (14) having a substantially L-shaped plane is vertical. It is pivotally attached with a shaft (15).

The closing lever (14), as shown by the solid line in FIG.
Rotating the tip (14a) in the counterclockwise direction from the original position deviated upward from the rotation locus of the driven lever (7) to a predetermined operating position shown by an imaginary line in FIG. Causes the tip (14a) to come into contact with the driven lever (7),
The latch (5) can be forcibly rotated from the half-latch position (b) to the full-latch position (c).

At the base end (14b) of the close lever (14), attach the wire (1
A cylindrical end member (16a) fixed to one end of 6) is locked, and the wire (16) is pulled by a driving means (21) described later to close the lever (14).
Can be rotated from the original position to the operating position as described above.

(17) is a guide tube for guiding the wire (16) to the drive means (21), (18) is a spring for returning and rotating the close lever (14), and (19) is a position where the close lever (14) is in an operating position. Stopper, which is designed to abut when it reaches (20)
Is fixed on the support plate (13) and closed lever (14)
Is a full-latch detection switch that is a full-latch detection means that detects that the latch (5) has reached the full-latch position by being actuated by contacting the close lever (14) when it reaches the operating position.

Actually, the latch (5) is at the full latch position (C).
Close lever (14) when turning slightly beyond
Has reached the operating position, at which time the full latch detection switch (20) is activated.

FIG. 5 shows the driving means (21).

The drive means (21) includes a motor (22) provided inside the door and capable of rotating in the forward and reverse directions, and, for example, a worm and a worm wheel (not shown), and reduces the rotational force of the motor (22) to reduce the output shaft ( The door (1) is pivotally attached to the door (1) with a speed reducer (24) transmitted to the gear (23), a pinion (25) fixed to the output shaft (23), and a shaft (26) parallel to the output shaft (23), and A sector gear (27) in which arc-shaped teeth (27a) centering on the shaft (26) mesh with the pinion (25) and the shaft (26) so as to rotate integrally with the sector gear (27). Is pivotally attached to
In addition, a turning lever (28) having a cylindrical end member (16b) fixed to the other end of the wire (16) is provided at the tip portion.

The tip end of the turning lever (28) is bent in a U-shape rearward, and the end member (16b) is fitted into an engaging hole (29) formed in a bifurcated portion of the turning lever (28) and directed in the left-right direction. By fitting both ends, both ends of the end member (16b) are supported, and an outer piece bent in a U shape is extended rearward, and the extension piece (28a) is imagined in FIG. As shown by the line, by pulling outward, one end of the end member (16b) is disengaged from the one engagement hole (29), and the wire (16) is rotated by the turning lever (2).
8) It can be separated from. This is for the case where the automatic closing device is stopped during operation due to a failure or the like, and the wire (16) remains tensioned, and no member can return.

The engagement hole (29) is an arc-shaped elongated hole centered on the shaft (26), and when the wire (16) is stretched due to aging or the like, by absorbing the stretched portion, the wire (16) is absorbed. ) Of the wire (1) near the end member (16b)
6) It is designed to prevent cutting damage due to repeated burr.

The wire (30) is brought into contact with the sector gear (27) and operated when the sector gear (27) and the rotating lever (28) are stopped at the original position shown by the solid line in FIG. It is an original position detection switch which is an original position detection means for detecting that the close lever (14) is stopped at the original position via 16).

According to this drive means (21), when the motor (22) is rotated in one direction, the sector gear (27) and the rotation lever (28) are in the original position via the speed reducer (24) and the pinion (25). Further, when the wire (16) is pulled by rotating clockwise in FIG. 5 and the motor (22) is rotated in the other direction, the sector gear ( 27) and the turning lever (28) are turned back toward the original position to return the wire (16).

When the sector gear (27) is returned to the original position, the original position detection switch (30) is operated and the operation of the motor (22) is stopped.

As shown in FIG. 1, a door side control device (31) is provided in the door (1), which includes a half latch detection switch (11), a full latch detection switch (20), and an original position detection device. The switch (30), the motor (22), and a safety switch (32) which is one of safety means are electrically connected. The safety switch (32) is connected to the front end face (1) of the door (1).
It consists of a pressure sensitive switch etc. provided in b).

On the side of the vehicle body (2), a battery (33) and a power supply switch (3
A vehicle body side control device (35) electrically connected to 2) and the like is provided.

The power feed switch (34) is arranged in combination with an actuating lever (36) pivotally attached to the lower side surface of the vehicle body (2), and is disposed on the door (1).
When the door is closed from the half-latched state to a predetermined position, the tip (36a) of the operating lever (36) abuts against a part of the door (1) and is rotated. An arcuate cam surface (36) provided around the axis of (36)
b).

Reference numeral (37) denotes a power feeding device for the door (1), which is a power feeding connector (38) attached to a front end face (1b) of the door (1) and a pillar of the vehicle body (2) facing the power feeding connector (38). It is composed of a pair with a power supply connector (39) attached to the section (2a).

As clearly shown in FIG. 7 and FIG. 8, each of the power supply connectors (38) (39) is provided in the upper and lower horizontal guide holes (42) formed in the bases (40) (41). It is provided with two pairs of conductive contact rods (43) (44) slidably fitted to. The contact rods (43) (44) are constantly urged by the compression spring (45) in a direction projecting from each other from the bases (40) (41), and the door (1) operates the power supply switch (34). When the door is closed to a halfway position until the half-latch state is reached, the end faces of the two facing each other come into contact with each other, and when the door (1) further closes to the full-latch position, the contact state is maintained. Each is the base (40)
It is designed to enter inside (41).

Reference numeral (46) is a spring bearing, which also serves as a guide means for guiding the contact rods (43) and (44) forward and backward. (47) is
An elastic cover made of rubber or the like.

A conductive wire (4) connected to the door side control device (31) and the vehicle body control device (35) is provided at the base end of each contact rod (43) (44).
8) are connected respectively.

At the rear end of the base (40), when the contact rod (43) is retracted, the connecting portion of the conductive wire (48) is hooked on the rear end edge of the guide hole (42) to contact the contact rod (43). In order to prevent the wire from being unable to move forward, a pair of projecting pieces (49) for guiding the connecting portion of the conductive wire (48) are continuously provided.

Thus, when the door (1) is closed to a certain extent or more by the power feeding device (73), the door (1) is moved from the vehicle body (2) side.
Power can be supplied to the side at any time.

FIG. 9 shows an example of an electric circuit. In the figure, (R
1) (R2) (R3) (R4) are relays, (R1-1) (R2-
1) (R3-1) and (R4-1) are those contacts, (T) is a recovery delay type timer, and (T-1) is the timer contact. Other reference numerals are symbolized and shown the above-mentioned members.

Next, the operation of this embodiment will be described mainly with reference to the circuit diagram of FIG.

When the door (1) is closed from the open state, first, the power supply switch (34) is closed for a short time by the rotation of the operating lever (36), and the relay (R1) and the timer (T) are energized at the same time. The contacts (R1-1) and the timer contact (T-1) are closed, the relay (R1) and the timer (T) are self-held, and the battery (33) supplies power to the vehicle body (2). Connect the timer (T) to the connector (39).
Power is supplied for the set time of.

The set time of the timer (T) is preferably set to about 10 seconds, for example.

When the door (1) is closed to the position just before the half-latched state, the tip of each contact rod (43) of the power feeding connector (38) is moved to the contact rod (44) of the power feeding connector (39) on the vehicle body (2) side. , And power supply is started from the vehicle body (2) side to the door (1) side from that moment.

If the door (1) is in the half-latch state from this state,
The half-latch detection switch (11) is closed by the rotating operation of the latch (5) and the pole (8) at that time.

Then, the relay (R3) is energized and its contact (R3-1)
Is switched to the normally open side, the motor (22) is energized, and the motor (22) starts rotating in one direction.

By the rotation of the motor (22) at this time, the drive means (21)
Operates to pull the wire (16), the closing lever (14) is rotated from the original position to the operating position, and at that time, the driven lever (7) is driven, whereby the latch (5) is moved. Is forcibly rotated from the half-latch position (b) to the full-latch position (c).
As a result, the door (1) is forcibly closed from the half latched state to the full latched state.

When the latch (5) reaches the full-latch position (c) and the close lever (14) reaches the operating position, the full-latch detection switch (20) is closed.

Then, the relay (R2) is energized and its contact (R2-1)
Is switched to the normally open side, the energization of the relay (R3) is stopped, and the contact (R3-1) is switched to the normally closed side. At this time, since both the close lever (14) and the sector gear (27) of the drive means (21) are separated from the original position and the original position detection switch (30) is closed, the relay (R4) is energized at the same time and its contact point is reached. (R4-1) is switched to the normally open side.

As a result, a current flows in the motor (22) in the opposite direction to the above, and the motor (22) rotates in the reverse direction.

Reverse rotation of this motor (22) causes the closing lever (14)
Is rotated back to the original position. At this time, since the latch (5) is locked by the pole (8), it is not driven from the full latch position (c) to the half latch position (b).

"When the close lever (14) and the sector gear (27) return to their original positions, the original position detection switch (30) opens and the relay (R4) is de-energized, and its contact (R4-1)
Is switched to the normally closed side, the power supply to the motor (22) is stopped, and the operation of the motor (22) is stopped.

After that, when the set time of the timer (T) has elapsed, the timer contact (T-1) is opened, the relay (R1) and the timer (T) are de-energized, and the contact (R1-1) is opened.
Since the power supply to the power supply connector (39) is stopped, even if the vehicle is left for a long time with the door (1) kept closed, the battery (33) will be over-discharged and the relay etc. There is nothing to overheat.

While the latch (5) is being forcedly rotated from the half-latch position (b) to the full-latch position (c), clothes or clothes sandwiched between the door (1) and the vehicle body (2) When the safety switch (32) is closed due to luggage or the like, the latch (5) does not reach the full-latch position (c), and the close lever (14) is rotated from the middle to the original position.

That is, since the safety switch (32) is provided in parallel with the full latch detection switch (20), when the safety switch (32) is closed, the full latch detection is performed even though the latch (5) has not reached the full latch position. Switch (20)
The same action as when the switch is closed, the close lever (14) and the sector gear (27) are returned to the original position, and the latch (5) is returned to the half-latch position (b).

Therefore, by subsequently releasing the door lock device (3) and opening the door (1), the door (1) completely removes the article sandwiched between the door (1) and the vehicle body (2). It can be taken out without being crushed until it is closed.

〔The invention's effect〕

According to the device of the present invention, since the closing lever is of the reciprocating type, it can be accurately returned to the original position each time, and like the conventional closing lever that always makes one rotation in the same direction, It is possible to prevent a possibility that the stop position of each time is misaligned and the timing of the next start is misaligned.

In addition, since the closing lever moves only within the required operating range, it does not require a wasteful space and can be a compact device.

In the unlikely event that the automatic closing device is stopped during operation due to a failure, etc., and the wires become strained and none of the members can be restored, use the extension piece instead of the forked part of the turning lever. By bending the piece in the opening direction, the end member of the wire can be disengaged from the engagement hole, and the wire can be easily separated from the turning lever. Therefore, the safety is further improved.

[Brief description of drawings]

FIG. 1 is an external view of a main part of an automobile having an embodiment of the present invention, FIG. 2 is a horizontal plan view of the same part, and FIG. 3 is a vertical sectional view taken along the line AA of FIG. Fig. 4, Fig. 4 is a view taken along the line BB in Fig. 2, Fig. 5 is a side view showing the driving means in an enlarged manner, and Fig. 6 is a portion taken along the line CC in Fig. 5. Sectional drawing, FIG. 7 is a longitudinal sectional view of the power feeding device, FIG. 8 is a view taken along the line DD of FIG. 7, and FIG. 9 is an electric circuit diagram. (1) Sliding door (door), (2) Vehicle body (3) Door lock device, (5) Latch (6) Striker, (7) Driven lever (8) Pole (11) Half-latch detection switch (half-latch detection) Means) (14) Close lever, (16) Wire (20) Full latch detection switch (Full latch detection means) (21) Driving means, (22) Motor (27) Sector gear, (28) Rotating lever (30) Original position detection Switch (home position detection means) (31) Door side control device, (32) Safety switch (safety means) (34) Power supply switch, (35) Vehicle body side control device (73) Power supply device, (38) (39) Power supply Connector (43) (44) …… Contact rod

Claims (1)

[Claims] 1. An open position in which a latch provided on the door side completely disengages from a striker provided on the vehicle body in accordance with the opening / closing operation of the door, and a half-latch position that barely engages with the striker. A vehicle door having a door lock device which is fully engaged with the striker and is capable of rotating to a full latch position capable of restraining the door in a completely closed state is used. A device for automatically closing a vehicle door forcibly closed to a full-latch state, which is a driven lever integrally provided with the latch, and a driven lever pivotally attached to the door side. By rotating from an original position deviating from the rotation locus of to a predetermined operating position, the latch is brought into contact with the driven lever and the latch is fully latched from the half-latch position. The closing lever that rotates to the position and the tip of the rotating lever that is pivotally installed on the door side so that it can be rotated in the forward and reverse directions by the motor are bent into a U shape to form a bifurcated shape. The turning lever is moved to the close lever by fitting both ends of the end member fixed to the other end of the wire whose one end is connected to the close lever into the pair of engaging holes formed in the closed lever. Connected to
The closing lever is reciprocally rotatable from the original position to the operating position, and an extension piece is connected to one piece of the bifurcated portion of the tip end of the turning lever, and the extension piece is attached to the other piece of the bifurcated portion. The drive means that allows the end member to be disengaged from the engagement hole by bending in the opening direction with respect to the end means, and the drive means that detects that the latch has reached the half-latch position from the open position side. A half-latch detecting means for activating the closing lever so that the closing lever rotates from an original position toward an operating position; and an operating position of the closing lever detected by the driving means by detecting that the latch reaches a full-latch position. A full-latch detection means for stopping the rotation operation in the direction and operating the drive means so that the closing lever returns to the original position; Detects that it has returned to the original position, the automatic closing device of a door for a motor vehicle, characterized in that it comprises a home position detection means for stopping the return operation of the closing lever by said drive means.