JPS58178779A - Automatic door opening and closing apparatus in automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically opening and closing doors in automobiles, other vehicles, and the like.

In conventional automatic door opening/closing devices for automobiles, etc., one end of a push rod is pivotally attached to the pillar side of the vehicle body, which is slightly deviated to the side from the axis of the door hinge, and the other end is attached to an appropriate lever provided inside the door. Some devices have a drive means that opens and closes the side door by pushing or pulling it in the axial direction.

In such conventional devices, it is necessary to operate the door near the door hinge, and in addition, before fully closing the door, there are
Since air resistance, hinge resistance, etc. act on the door, in order to securely close the door, it is necessary to close the door forcefully and close it by inertia, use a fairly powerful motor, etc., or use a driving means. It is necessary to significantly reduce the speed and increase the closing force.

However, if the door is closed forcefully and closed by inertia, there is a risk that the door or vehicle body may be deformed or damaged by the impact. If any part of the object is caught, there is a risk of serious injury.

When using a powerful motor, it is heavy and expensive, and has disadvantages such as high power consumption and short battery life. has the disadvantage that the opening/closing speed of the door is slow, making it unsuitable for practical use.

Further, when the door is fully closed, excessive closing force acts on the door and center pillar, which may cause the door and center pillar to deform.

On the other hand, in conventional automatic door opening/closing devices for automobiles, etc., the lock release device that unlocks the door prior to the door opening operation is linked to the above-mentioned door opening/closing device, but the linking mechanism is complicated. However, there were drawbacks such as loud operating noise, and lack of smooth operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic door opening/closing device for an automobile or the like that eliminates the above-mentioned drawbacks.

In other words, an object of the present invention is to allow the door to open and close smoothly, reduce the impact on the vehicle body and the vehicle body when the door is closed, and eliminate the risk of deformation of the center pillar and the door. Even if a part of the human body is pinched,
It is an object of the present invention to provide an automatic door opening/closing device for an automobile, etc., which can open and close the door without any danger and with a small and low output drive means.

In order to achieve this object, the present invention includes an opening/closing mechanism that opens and closes the door using an appropriate drive source at the end of the door on the door hinge side, and an opening/closing mechanism that is provided at the end of the door opposite to the door hinge and is provided on the vehicle body side. A door lock including a latch that can engage with a fixed striker and a pole that can lock the latch in engagement with the striker to restrain the door in a closed state; a closing device that uses a drive source to rotate the latch in the door lock from a no-latch position where it barely engages with the striker to a full latch position where it fully engages with the striker and closes the door; and a lock release device that rotates the pole of the door lock in the direction of separating from the latch by an appropriate drive source provided in the door, and when the door is automatically opened, the lock release device is activated to lock the door. After releasing, the opening/closing mechanism moves the door in the direction of opening, and when the door is automatically closed,
The opening/closing mechanism moves the latch in the direction of closing the door until it reaches the fully latched position, and after the latch reaches the fully latched position, the closing device forces the latch to the fully latched position. Turn the door until it closes.

The present invention will be described below based on embodiments shown in the accompanying drawings.

In FIG. 1, (1) is a rear door of a car, which includes an inner panel (1a), an outer panel (1b),
A pair of upper and lower door hinges (2) comprising a front end plate (1C), a rear end plate (1d), etc., and a vertical pivot (2a).
The front end is pivotally connected to the vehicle body.

Inside the door (1), an opening/closing mechanism, a door lock (H), a closing device (C), and a lock release device (DJ) are provided.

Next, each of these devices will be explained in detail.

The opening/closing mechanism ((rotation) opens and closes the door (11) on the door hinge (2) side, and is equipped with a motor (3) that can rotate in forward and reverse directions and serves as a drive source. It is attached to the case (5) of the decelerator (4), which is fixed to the lower part of the inner panel (1a) of No. 11 near the front end.

As clearly shown in FIGS. 2 and 6, an input shaft (6) extending approximately in the longitudinal direction is rotatably supported at the lower part of the case (5) of the reducer (4). The rear end of (6) is connected to the rotating shaft (path shown) of motor (3).

Approximately in the center of the input shaft (6) is a worm (force is formed integrally with the worm wheel (7), which is pivotally mounted approximately in the center of the case (5) with an output shaft (8). 9).The worm wheel (9) and the output shaft (8) are connected with an appropriate connecting fitting (In).
They are connected to each other so that they cannot rotate relative to each other, and are pivotally supported within the case (5) so that they rotate together.

An output gear (11) is fixed to the free end of an output shaft (8) of the reducer (4) that protrudes outward from the case (5), and this output gear (11) is connected to the door (1). The inner panel (
It meshes with arc-shaped teeth (13a) at the lower end of the sector gear (13) pivotally mounted on the sector gear (13).

At the top of the sector gear (16), an arm (1
3b) is formed, and at the upper end of this arm (13b),
The rear end of a horizontal push rod (15) extending in the front-rear direction is pivotally attached to a horizontal shaft (14) facing inward and outward directions of the door (1).

The middle of the pushing rod (15) is the front end plate (1c) of the door (1).
The front end of the push rod (15) is inserted into the center of the vehicle body at a position slightly deviated laterally from the pivot axis (2a) of the door hinge (2). It is pivotally attached to a bracket (18) fixed to a pillar (17) with a vertical shaft (19).

In this way, the opening/closing mechanism (A) is formed by the configuration from the above-mentioned motor (3) to the push rod (15) via the decelerator (4) and sector gear (13).

In this opening/closing mechanism), the rotating shaft of the motor (3) is rotated in a predetermined normal rotation direction to rotate the sector gear (15) counterclockwise in FIG. 1 via the reducer (4). direction, and move the push rod (15) to the door (1
1. Push forward and the reaction will cause the door (1) to move forward.
can be opened.

In addition, by rotating the rotating shaft of the motor (3) in the reverse direction, the sector gear (10
) in the clockwise direction in Fig. 1, and press the push rod (15
) can be towed into the door (1) to close the door (1).

Note that (LS-1) is a limit switch that detects the fully open state of the door (1), and in this embodiment, the sector gear (LS-1) is a limit switch that detects the fully open state of the door (1).
The arm (13b) of 13) is fixed at a proper position on the inner panel (1a) so as to come into contact with the arm (13b) and operate when the door (1) reaches a position where the door (1) is fully opened.

Next, the door lock (B) will be explained with reference to FIG. 1 and FIGS. 5 to 10.

The door lock (B) is made of a hard synthetic resin door lock body (20
).

Inside the door lock body (20), there are two
A bifurcated latch (23) that can engage with a striker (22) fixed to the
). This latch (2) is in the open door position, where it is completely separated from the striker (22), as shown by the solid line in Figure 7, and in the open position, where it is completely separated from the striker (22), as shown by the imaginary line in Figure 7. the fully latched position, which engages and holds the door (1) in the fully closed position, as shown in FIG.
It can be rotated to a half-latch position, which is an intermediate position between the open door position and the full-latch position, and barely engages the striker (22), and is usually rotated with an appropriate return rotation spring (25) as shown in Fig. 7. Forced clockwise.

Further, a half-moon-shaped pole (27) is pivotally mounted inside the door lock body (2o) with an axis (26) parallel to the axis (24). This pole (27) is a latch (2ro)
is in the half-latched position and the full-latched position,
It is designed to engage a part of the latch (23) and prevent the latch (23) from rotating from those positions toward the door-opening position, and is normally operated by an appropriate return rotation spring. (not shown) counterclockwise in FIG. 7 and stopped at the position shown in FIG. 7, but against this spring,
By rotating in the clockwise release direction in FIG. 7, the latch (26) is released and the door (1
) is busy so that you can open it freely.

On the front of the door lock body (20), there is a base plate)
(28) is fixed, and a side plate (29a
29b) are provided in series.

The shaft (24) of the latch (26) and the shaft (26) of the pole (27) are attached to the door lock body (20).
) (28) and protrudes forward through the latch (26).
At the front end of the shaft (24), there is a cam (30) pointing upward.
), and an open lever (31) with an arm portion (rotation 1a) facing inward of the vehicle is fixed to the shaft (26) of the pole (27), and the latch (25) is connected to the cam (30). , and the pawl (27) can rotate together with the open lever (31).

Base plate (28) and side plates (29a) (29b)
Various operation levers are pivotally attached to the , and by operating these levers, the open lever, s-(!+1), can be rotated in the desired direction and unlocked. Since it is the same as the known one and is not directly related to the present invention, detailed explanation thereof will be omitted.

Next, the closing device (C) will be explained.

As clearly shown in FIG. 5 and FIG.
) has an arc-shaped first cam surface (30a) that protrudes slightly outward from the other peripheral edges, and this first cam surface (30a).
an arc-shaped second cam surface (30b) connected to the first cam surface (roDa) and protruding further outward, and a stepped portion (30c) continuous with the second cam surface (30b). It is formed.

The first cam surface (30a) is fixed to the base plate (28) when the door (1) is closed to the so-called ajar condition 5 and the latch (25) reaches the above-mentioned no-flat position. It is provided in such a position that it comes into contact with the limit switch (LS-2) and operates the limit switch (LS-2).

In addition, the second cam surface (50b) has a latch (26)...
- When a suitable intermediate position between the flapped position and the fully latched position is reached, it abuts a limit switch (LS-3) fixed to the base plate (28), activating this limit switch (LS-1); The arrangement is as follows.

At the front end of the shaft (24) of the latch (26), the base of a pivoting renosie (62) is pivotally connected to the cam (60) for relative rotation. On the outer periphery of the base of this rotating lever (52),
A protruding piece (32a) facing the rear of the door (1) is formed, and when the rotating lever (rotation 2) is rotated in the counterclockwise direction in FIGS. 5 and 9, this protruding piece (32a) is the cam (
The cam (30) and the latch (Oc) can be rotated from the -flat position to the full latch position. When the rotating lever (32) returns to the clockwise direction in FIGS. Rotate 2
- (62) is not followed.

As shown in Figures 5, 6 and 9, the rotating lever (
The F end of a connecting rod (34) extending in the vertical direction is pivotally attached to the free end of the shaft 52), with a horizontal axis (66) extending in the front-rear direction. The lower end of the connecting rod (34) is connected to the lower side plate (29).
b) a horizontal axis (35) forming the inside and outside direction of the door (1);
A bell crank-shaped connecting lever (66
), a shaft (5
5) with an axis (37) parallel to it.

Returning to FIG. 1, (38) is the closing device (C
), this motor (38)
is attached to the case (40) of the speed reducer (39) with a switch device fixed to the inner panel (1a) of the door (+) in front of the door lock (B).

As shown in FIGS. 1 and 4, an input shaft (41) extending approximately in the longitudinal direction is rotatably supported at the lower part of the case (40) of the decelerator (69). 41)
A rotating shaft (not shown) of a motor (port 8) is connected to the front end of the motor.

A worm (42) is integrally formed approximately in the center of the input shaft (41), and this worm (42) is connected to the case (4
Worm wheel (4ro) pivoted almost in the center of 0)
It meshes with. In the center of the worm foil (4ro),
An output shaft (44) is provided to protrude so as to rotate together with the worm wheel (45).

The switch device (45) includes a disk-shaped substrate (46) fixed to the negative side of the worm wheel (43), and a fan-shaped cutout fixed to the center of the substrate (46) and part of the outer periphery. A substantially disc-shaped conductor plate (4) with a notch (47a) formed therein.
7), a fan-shaped conductor plate (48) fixed to the substrate (46) in such a manner that it fits into the notch (47a) with a required gap, and two conductor plates supported by the case (40). The brushes (49) and (50) are in contact with the conductive plate (4B) at the same time during a certain rotation period of the board (46), and during other rotation periods. In this case, only the brush (49) near the output shaft (44) contacts the conductive plate (47). These electrical connections will be described later.

A crank arm (51) is fixed to the protruding end of the output shaft (44) that protrudes to the outside of the vehicle from the reducer (39), and the free end of the crank arm (51) has a connection that extends in the longitudinal direction. The front end of the rod (52) is connected with an axis (56) parallel to the output shaft (44). In addition, the conductor plate (4) fixed to the crank arm (51) and the board (46)
7848), when the conductor plate (48) contacts both brushes (49) and (50), the crank arm (5
1) is determined to be located at the top dead center as shown in FIG.

The rear end of the connecting rod (52) is connected to the downwardly facing arm (56b) of the bell crank-shaped connecting lever (66).
are connected to each other by an axis (54) parallel to the axis (35).

Thus, from the motor (68), the speed reducer (39), the crank arm (51L connecting rod (52), the connecting lever (
Akira), connecting rod (54), rotating lever (62), cam (60
) etc., and the structure up to the shaft (24) of the latch (26) forms a closing device (C).

In this closing device (C), the crank arm (51) is rotated once by rotating the rotating shaft of the motor (rotator 8) in a required direction, and rotated in the first half cycle. ) in the counterclockwise direction in FIG. 5, the latch (23) in the half-latched position is forcibly rotated to the full-latched position, and the door (1) can be reliably fully closed.

When the crank arm (51) rotates in the second half of the cycle, the rotating lever (rotation 2) rotates back clockwise in FIG. 5 and returns to the position shown in FIG. At this time, as described above, the cam (60) and latch (25) are not driven by the movement of the rotating lever (62), but are latched to the pole (27) as shown by the imaginary line in FIG. maintain the condition.

Next, the lock release device (D) will be explained.

This lock release device (DJ) is equipped with a release lever (55) shown in FIGS. 1, 5, 6, and 10.

The release lever (55) has its center portion pivoted to the lower side plate (29b) of the door lock (B) with a horizontal shaft (56) facing inward and outward directions of the door (1), and
The upper end of a flexible cable (57) made of hard steel wire or the like is fixed to the front end. The rear end of the release lever (55) enters into the rotation locus of the arm (31a) of the open lever s-(51), and by pulling the cable (57), the rear end of the release lever (55) is released. , rotate the open lever (51) clockwise in FIG. 5, rotate the pole (27) in the release direction,
It is now possible to unlock it.

Note that (58) is an appropriate spring for rotating the release lever (55) back in the clockwise direction in FIG. 6.

The cable (57) is connected to the inner cable near the release lever (55).
The actuator passes through a flexible cable conduit (59) whose upper end is fixed to a proper position of the hot panel (1a), and whose lower end is fixed to a proper position of the inner panel (1a) below the motor (58). (60) is fixed to the free end of the plunger (61). The lower end of the cable conduit (59) is connected to the cable (
57) is fixed to the inner panel (1a) at an appropriate position so as to be in a straight line with the plunger (61).

In this embodiment, the actuator (60) is of a renoid type which, when energized, pulls the plunger (61) forward and downward from the state shown in FIG. However, a motor-driven type may also be used.

In this way, the release lever (55), the cable (57), the actuator (60), etc.
is formed. In this lock release device), by energizing the actuator (60), the cable (57) is pulled and the release lever (55) is rotated counterclockwise in FIG. Ro1)
The lock can be released by rotating it in the desired release direction.

When the power to the actuator (60) is stopped, the spring (
58), the release lever (55), and the cable (5).
7).

The plunger (61) returns to the state shown in FIG.

FIG. 11 shows the electrical circuit of the embodiment described above.

(62X63) is a main switch provided near the driver's seat of the automobile, and can be switched between the door opening side (open) and the door closing side (close) in conjunction with each other.

(64) is the main switch (62) (63) on the opening side (o
(65) and (66) are switches that close only when the main switch (pen) is switched.
62) This is a switch that is linked and closed only when the switch (6) is switched to the closed door side (close). (6
7) is a power source such as a car battery.

Other members are indicated using the same reference numerals as used in the above description.

Note that the limit switch (LS-1) opens only when the door (1) is in the fully open position, and the limit switch (LS-1) opens only when the door (1) is in the fully open position.
S-2) is located on the contact (OFF) side when the latch (26) is from the open door position to the half-latch position, and is located on the contact (ON) side when the latch (23) is from the half-latch position to the full-latch position. It can be switched to the side. In addition, the limit switch (LS-3) has a latch (2
3) is located between the door opening position and the intermediate position between the half latch position and the full latch position, the latch (23) is located on the contact (OFF) side, and the latch (23) is located between the intermediate position and the full latch position. In some cases, it can be switched to the contact (ON) side.

Next, the operation of the apparatus of the present invention will be explained based on FIG.

As shown in Figure 1, when the door (1) is closed, the limit switch (LS-1) is closed, the limit switch (LS-2) is located on the contact (ON) side, and the limit switch ( LS-3) is located on the contact (ON) side.

In this state, to open the door (11), press the main switch (62).
It is sufficient to simply switch (63) to the open side.

At this time, the switch (64) is also closed at the same time, so ■Power supply (67) - Main switch (63) - Limit switch (
LS-1) - Actuator (60) - Switch (64
) - Limit switch (LS-2) - Main switch (62
)-〇 A closed circuit of the power source (67) is formed, power is supplied to the actuator (60), and the lock release device (D) is activated to release the lock.

Then, the latch (23) is placed in the open position, and the limit switch (LS-2) is switched to the contact (OFF) side.
The power supply to the actuator (60) is stopped, and the power supply (67) - Main switch (63) - Limit switch (LS-1) - Motor (8) - Limit switch (LS-2) - Main switch (62) −〇Power supply (6
An open circuit 7) is formed, power is supplied to the motor (3), and the rotating shaft of the motor (3) rotates in a predetermined normal rotation direction.

As the motor (3) rotates in the forward direction, the sector gear (16) rotates counterclockwise in Fig. 1, and the push rod (15) is moved from inside the door ([) toward the vehicle body. The door (1) opens due to the push and reaction.

When the door (1) reaches the fully open position, the limit switch (LS-1) opens, the closed circuit is opened, the power supply to the motor (3) is stopped, and the door (1) stops at that position. .

To close the door (1), the main switch (62X63) may be switched to the close side (close).

At this time, the switches (65) and (66) are both closed, and the limit switch (LS-2) remains located on the contact (OFF) side as described above. Also, since the latch (25) is in the open door position, the limit switch (
LS-3) is located on the contact (OFF) side.

Therefore, ■Power supply (67) - Raw switch (65) - Switch (65) - Limit switch (LS-2) - Motor (3) - Limit switch (LS-1) - Raw switch (62) - C) Power supply A closed circuit (67) is formed, and the motor (3) is supplied with power with the opposite polarity to that in the above case, causing the motor (3) to rotate in the reverse direction.

Then, the sector gear (15) rotates clockwise in FIG. 1, contrary to the above case, and pulls the push rod (15) into the door (1) to close the door (1). Rotate it.

When the door (1) is closed to the so-called ajar state, the striker (22) enters the door lock body (20), the latch (23) is in the half-latch position, and the limit switch (LS-2) is closed. ) is switched from the contact (OFF) side to the contact (ON) side. Then, the power supply to the motor (3) is stopped, and the motor C58) is now supplied with power, and the crank arm (51) starts rotating, moving the latch (2) from the half latch position to the full latch position. Start rotating towards the target.

At the same time, the board (4) of the switch device (45) is
6) also begins to rotate, the brush (49) comes into contact with the conductive plate (47), and the brush (5D) separates from the conductive plate (48) and becomes non-contact.

When the latch (23) reaches the appropriate intermediate position between the half-latched position and the full-latched position, the limit switch (LS)
-6) is switched from the contact (OFF) side to the contact (ON) side.

As a result, the limit switch (LS-7)
), the circuit that reached the main switch (62) and the power supply (67) is: limit switch (LS-5) - brush (49) - conductor plate (47) - main switch (62) -
〇It is switched to a circuit consisting of a power supply (67).

However, the mechanical actuation of the closure device (C) continues, gradually tightening the latch (26) towards the fully latched position.

After the launch (23) reaches the full latch position, when the crank arm (51) and the board (46) complete the latter half cycle and return to their original positions, the brush (49) moves to the conductor board ( 47), the circuit to the e-power source (67) is opened, power supply to the motor (58) is stopped, and immediately thereafter, the brushes (49) and (50) are separated from the conductor plate (47).
8) at the same time, the motor (filter 8)-switch (6)
6) - Limit switch (LS-3) - Brush (49)
- Conductor plate (48) - Brush (50) - Switch (65)
- Limit switch (LS-2) - A closed circuit of the motor (58) is formed, the motor (6th) is short-circuited, the motor (68) suddenly stops due to the back electromotive force at that time, and the crank arm (51) is short-circuited. ) makes exactly one revolution and stops.

At this time, the power supply to the motor (38) has already stopped as described above, and the entire circuit returns to the closed door state before the door opening operation described above.

As is clear from the above, according to the present invention, when the door is automatically opened, the lock release device is activated to release the door lock, and then the opening/closing mechanism moves the door in the opening direction, and when the door is automatically closed, the latch is・The opening/closing mechanism moves the door in the closing direction until it reaches the -flanch position, and after the latch reaches the flat position, the closing device forcibly rotates the latch to the full latch position and closes the door. This allows the door to be opened and closed smoothly, and it also closes the door from the clutch position to the full latch position, which was previously the most difficult to close due to weather strip reaction force and lock resistance. ,
This is meaningful because the door can be reliably closed using force from the door lock side that is farthest from the door hinge without requiring excessive force.

Therefore, there is no need to forcefully close the door as in the past, which reduces the impact on the door and the vehicle body, and also prevents the application of excessive force on the door and the center pillar of the vehicle body. The center pin 2 and the door will not be deformed. Further, even if a part of the human body is caught between the door and the vehicle body, there is little risk of injury and it is safe.

Furthermore, it is not necessary to use a powerful motor, and a small, low-output motor may suffice, allowing the door to be opened and closed at an appropriate speed.

In addition, in the above-mentioned embodiment, the door is opened and closed entirely by the main switch (62) (62) without considering the use in combination with manual operation.
5), but when used in combination with manual operation, an electromagnetic clutch is provided in the middle of the transmission part of the above-mentioned opening/closing mechanism (A), and by disengaging this electromagnetic clutch, , the door may be opened and closed manually by cutting off the link between the drive source and the door.

As a specific means in such a case, the decelerator (4) in the above-mentioned opening/closing mechanism (A) can be
Replace the electromagnetic clutch (CL) with a reducer (68) with a built-in electromagnetic clutch (CL) as shown in the figure.
The electric circuit in FIG. 11 is connected in parallel with the motor (3) as shown by the imaginary line, and only when the motor (3) is energized, the electromagnetic clutch (CL) is energized and excited, and the motor ( 3) and the sector gear (13); otherwise, disconnect the motor (3) and the sector gear (13) so that the door (1) can be freely operated manually. It is possible that゛Please note that the electromagnetic clutch (CL)
) is a rotating disk (69) that is integrally fixed to the worm wheel (69), as shown in FIGS.
7o) and is provided opposite to the negative side of this rotating disk (70), and its center portion is fixed to the output shaft (71) (which is rotatably supported relative to the warm point/1 (69)). The movable disk (72) and the output shaft (7
It consists of a coil (74) that is wound around the coil (74) and fixed to the case (73), and when the coil (74) is energized, the rotating disk (70) and the movable disk (72
) are magnetically attached to each other to link the worm wheel (69) and the output shaft (71), and the coil (74)
When power is cut off, the rotating disk (70) and the movable disk (72) separate from each other, and the worm wheel (69) and the output shaft (71) are disconnected from each other.

(75) is an input shaft, and (76) is a worm 1. which is integrally formed in the middle of the input shaft (75) and meshes with the worm wheel (69). (77) is an output gear fixed to the output shaft (51).

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a door according to an embodiment of the present invention, FIG. 2 is a partially cutaway enlarged front view of a decelerator in the opening/closing device shown in FIG. 1, and FIG. Figure 4 is an enlarged vertical cross-sectional view of the decelerator in the closing device shown in Figure 1, and Figure 5 is an enlarged view of the door lock shown in Figure 1 viewed from the left. The side view, Figure 6 is an enlarged front view of the door lock, and Figure 7 is the same.
A vertical cross-sectional view taken along line Y-Y in Figure 6, with the latch in the open position shown by a solid line and the latch in the fully latched position shown by an imaginary line. FIG. 9 is an exploded perspective view of the shaft of the latch shown in FIG. 5. FIG. 10 is a door lock shown in FIG. 6. FIG. 11 is a circuit diagram showing an example of the electric circuit of the device of the present invention; FIG. 12 is a speed reducer used in a switchgear according to another embodiment of the present invention. FIG. 16 is a partially cutaway front view of an example of
FIG. 13 is a longitudinal sectional view taken along line 2-2 in FIG. 12; (A) Opening/closing mechanism (B) Door lock (C) Closing device (D) Unlocking device (1) Door
(2) Door hinge (3) Motor
(4) Reducer (13) Sector gear (15
) Push rod (20) Door lock body (22) Striker (23) Latch (27) Pole (60) Cam (51) Open lever (32) Rotating lever (54) Linking rod (56) Connection lever
(38) Motor (39) Reducer (45)
Switch device (51) Crank arm (52) Connecting rod (55) Release lever (57) Cable (60)
) Actuator (62) (63) Main switch (6
8) Reducer (CL) Electromagnetic clutch No. 10r B

Claims (2)

[Claims] (1) An opening/closing mechanism that opens and closes the door using an appropriate drive source at the end of the door on the door hinge side, and a latch that is provided at the end of the door opposite to the door hinge and can engage with a striker fixed to the vehicle body. and a door lock with a hole through which the latch can be engaged with a striker to lock the door in a closed state; an appropriate drive source provided in the door; , a closing device that rotates the door from a half-latch position where it barely engages with the striker to a full-latch position where it fully engages with the striker and closes the door, and an appropriate drive source installed inside the door. and a lock release device that rotates a pole in the door lock in a direction in which it is released from the latch, and when the door is automatically opened, the lock release device is activated to release the door lock, and then the door is opened by the opening/closing mechanism. In addition to moving the door in the direction of opening, when automatically closing the door,
The opening/closing mechanism moves the latch in the door closing direction until it reaches the half-latched position, and after the latch reaches the half-latched position, the closing device forcibly rotates the latch to the full-latched position. An automatic door opening/closing device for automobiles, etc., characterized in that the door is closed by moving the door. (2) The opening/closing mechanism is equipped with an electromagnetic clutch in the middle of the transmission part, and by disengaging the electromagnetic clutch, the link between the drive source and the door is cut off, and the door can be opened and closed manually. An automatic door opening/closing device for an automobile or the like according to claim (1), characterized in that: