JP2550228Y2 - Automatic door opening and closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door opening / closing apparatus capable of forcibly opening and closing a door of a vehicle or the like by a door moving apparatus.

[0002]

2. Description of the Related Art For example, in the drawing of Japanese Utility Model Laid-Open No. 2-150377, a door moving device for forcibly moving a door in a closing direction and an opening direction is operated by operating an operation switch provided near a driver's seat. There is disclosed an automatic door opening / closing device capable of automatically opening and closing the door.

[0003]

In the above-mentioned device, the door can be automatically opened and closed by operating an operation switch. Therefore, it is necessary to consider safety from various aspects. SUMMARY OF THE INVENTION It is an object of the present invention to provide a door opening / closing device with improved safety when a failure occurs in an operation switch.

[0004]

In order to achieve the above object, an apparatus according to the present invention includes a door moving device for forcibly moving a door in an opening and closing direction by a driving source, an operation switch provided near a driver's seat, and In an automatic door opening and closing device having a control circuit for controlling a door moving device to be operable in an opening and closing direction by operating an operation switch, and a permission switch for controlling supply of power to the control circuit, the control circuit includes an operation switch. A feature is provided that a priority circuit is provided for invalidating the operation of the operation switch when operated prior to the permission switch.

[0005]

When the permission switch is in the ON state, the priority circuit enables the operation of the operation switch and controls the door moving device in the opening and closing direction to open and close the door. When the permission switch is turned on in the on state, the control is invalidated. Therefore, even if the permission switch is turned on in a state where the operation switch has been turned on due to a failure, the door is prevented from suddenly starting to move, which is safe.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In FIG. 2, (1) is the body of the automobile, (2)
Is a slide door (hereinafter, simply referred to as a door) mounted on the side of the vehicle body (1) so as to be openable and closable.
It is slidably supported by (3) and moves rearward from the fully closed position (indicated by 2B in FIG. 2) while slightly moving outward from the side surface of the vehicle body (1), and then moves to the side surface of the vehicle body (1). And a fully open position (indicated by 2A in FIG. 2) that opens rearward in parallel with the position.

A door moving device (A) for forcibly opening and closing the door (2) from a fully closed position to a fully opened position by a motor drive is provided on the lower surface of the step (4) at the entrance of the vehicle body (1). I have.

The door moving device (A) is a step bracket fixed to a side sill (1a) on the lower surface of the step (4) and fixed on a plurality of legs (1b) having a predetermined height.
And (5) a toothed drive pulley (7) mounted on the back of a raised portion (5c) formed behind the step bracket (5) and driven to rotate by a door moving motor (6) that can rotate forward and reverse. )
, A drive pulley (7), a rear pulley (9) pivotally mounted in the vicinity of the drive pulley (7), and a front pulley pivotally mounted in front of the rear side of the step bracket (5). And a flexible toothed belt (11) that is reciprocated by the rotation of the drive pulley (7), and the door (2).
A belt stopper (13) is held by a screw (14) and connected to the toothed belt (11) that moves along the moving direction of the belt, and a belt joint (15) is connected to the belt stopper (13). The base (15a) is pivotally connected to a shaft (13a).

A stepped flange (5f) is formed on the outer periphery of the step bracket (5).
The step bracket (5e) corresponding to between the fully open position and the half open position in (2) has a step bracket (5).
A reinforcing member (5b) having a U-shaped section for reinforcing the step portion of (5) is fixed, and an inclined portion (11a) of a toothed belt (11) is provided in front of the step bracket (5).
Further, a front step portion (5d) protruding outward is formed.

As shown in FIGS. 13 to 15, the door moving drive unit (8) includes a housing (54) and a door moving motor housed and fixed in a motor housing (54a) of the housing (54).
(6) and a pinion (6a) pivotally attached to the housing (54) by a shaft (39a) and fixed to the output shaft of the door moving motor (6).
A first reduction gear (39) meshing with the first reduction gear (39), a second tooth reduction gear (40) pivotally connected to the shaft (40a) and meshing with the first reduction gear (39);
A drive pulley (7) fitted to the prism (40b) of the shaft (40a) and rotated integrally with the second gear (40) on the back side of the housing (54);
A cover (55) for closing the opening of the housing (54) and an opening (56a) through which the toothed belt (11) passes are formed, and the toothed belt (11) is securely engaged with the drive pulley (7). And a pulley cover (56) for guiding the operation. The door movement drive unit (8) is decelerated by an input from the drive pulley (7) so that the output shaft of the door movement motor (6) can reverse.

Around the shaft (39a) of the first gear (39), a plurality (three in this embodiment) of adjusting work holes (39b) penetrating toward the opposite side are formed. A fixing portion (54b) is formed in the corresponding housing (54) below the adjusting work hole (39b).

(57) A door moving motor is mounted on the housing (54).
A motor bracket for fixing the position (6) so that the position can be adjusted, and a screw (58) screwed into the fixing portion (54b) of the housing (54)
A mounting piece (57a) is provided through which is fixed.

Door moving motor for first reduction gear (39)
The position adjustment of the pinion (6a) in (6) is performed by the door movement motor.
(6) is temporarily fixed to the fixed portion (54b) via the motor bracket (57), and the first and second reduction gears (39) and (40) are connected to the housing.
(54), the first reduction gear (39) is turned so that the adjusting work hole (39b) is located directly above the fixing portion (54b), and in this state, the pinion of the door moving motor (6) is turned on. (6a) is definitely the first
The position of the door moving motor (6) is adjusted so as to mesh with the reduction gear (39), a screwdriver is inserted from the adjusting work hole (39b), and the screw (58) is tightened. ) Can be reliably fixed to the adjustment position.

(16) is a temporary fixing bracket which is connected to the step bracket (5) and the belt joint (15) by a screw (16a) and temporarily fixes the belt joint (15) in a proper position. (15) is the door side bracket (1
After the door bracket (12) is connected to the belt joint (15) by temporarily fixing it to the step bracket (5) so that it does not move unnecessarily until it is connected to (2), screw (1)
6a) is removed and removed from the step bracket (5).

In the door (2), the end of the belt joint (15) is fastened to the door side bracket (12) with bolts (12a), and the door moving motor (6) rotates forward and reverse to drive the pulley (12). 7)
Is rotated, the toothed belt (11) reciprocates in the opening and closing direction of the door (2), and opens and closes along the rail (3).

(50) is a temporary stop switch fixed to the back side of the step bracket (5), and the door (2) is closed by the door moving device (A), and is about 20 to 30 cm before the fully closed position. When it reaches the position of (1), it comes into contact with the projection (13b) formed on the belt stopper (13) and momentarily closes and operates, so that power to the door movement motor (6) of the door movement device (A) is supplied. The supply is stopped, and the door (2) is temporarily stopped at that position. In this state, the circuit of the door moving motor (6) is closed as described later, and the motor brake is applied to apply a braking force so that the door (2) does not move from the stop position.

(17) The inclined portion (11a) of the toothed belt (11)
A front guide fixed to the back surface of the step bracket (5) corresponding to the above, guides the toothed belt (11) so as not to loosen loosely, and applies a predetermined tension to the toothed belt (11). It is to let. (18) is a step bracket
The harness of the door moving device (A) fixed in a zigzag manner avoiding the mounting holes (5a) on the back side of (5), (19) is an alarm sound such as a chime for safety when opening and closing the door (2). Is an operation alarm device that generates

The door moving device (A) is a state in which all parts such as the door moving drive section (8) and the toothed belt (11) as described above are mounted and assembled on the back side of the step bracket (5). ,
The step bracket (5) is fixed to the leg (1a) fixed to the side sill (1a) on the lower surface of the step (4) of the vehicle with the screw (1c), and then the door side bracket (12) is attached to the belt joint (15). Then, the temporary fixing bracket (16) is removed, so that the door moving device (A) and the door (2) are connected.

In this case, since the belt joint (15) is fixed to a regular position with respect to the step bracket (5) by the temporary fixing bracket (16) and is connected to the door side bracket (12), the door (2) is fixed. It is possible to move along a regular route without being affected by the error in the construction of the parentheses.

The movement of the toothed belt (11) causes the belt stopper (13) and the belt joint (15) to be inclined (11a).
, The belt joint (15) enters behind the front step portion (5d) of the step bracket (5). At that time, the flange of the front step portion (5d) of the step bracket (5) has a lower flange portion (5f) than the other portions, and the reinforcing member (5b) is not provided. The screw (12a) connecting the belt joint (15) and the door side bracket (12) does not interfere with the edge of the front step portion (5d) and can enter the back side.

(48) a vehicle body facing the front end face of the door (2)
When the door (2) is located between the fully closed position and at least a half latch position to be described later, the door switch provided in (1) abuts on the front end surface of the door (2). Operate. Reference numeral (20) denotes an operation switch provided near the driver's seat of the vehicle body (1), and includes an open switch (20a) and a close switch.
(20b), and by operating the switches (20a) (20b), the door moving device (A) can be operated in the opening direction and the closing direction.

The closing switch (20) of the operation switch (20)
When b) is operated, the operation alarm device (19) is immediately activated to generate an alarm sound to notify the getting on / off of the door movement, and after a predetermined time elapses, the door moving device (A) is activated. The door (2) moves in the closing direction. After the door (2) is temporarily stopped by the stop switch (50), if the operation switch (20) is operated again within a predetermined time, the operation alarm device (19) and the door moving device ( A) is controlled to operate.

(24) a vehicle body facing the front end face of the door (2)
(1) The vehicle body side connector provided on the center pillar, (2
5) is a door-side connector provided on the side of the door (2) facing the body-side connector (24) so as to be freely retractable. From the time when the door (2) is in front of the half-latch position, each of the connectors facing each other is provided. (24) and (25) come into contact with each other to enable power supply from the vehicle body (1) to the door (2).

In the door (2), a door (2) is provided with a latch in a door lock (26) mounted on the rear end side of the door (2).
(Not shown) and a striker fixed to the body (1) side (not shown)
When the door is closed to a half-latch position which is a so-called half-door state where the door barely engages, the latch is forcibly rotated to forcibly close the door (2) to the full-latch position. B) and a release lever (46) of the door lock (26) via a cable (47). By turning the release lever (46) in the release direction, the restraint of the latch from the striker is released. And an unlocking device (C) for opening the door (2).

As shown in FIG. 12, when the door lock (26) is at the half-latch position, the closure motor (27) fixed to the base plate (29) rotates forward as shown in FIG. A rotation mechanism (28) composed of a worm and a worm wheel rotatably housed in (30) and a pinion (28a) fixedly fitted to its output shaft are rotated by a shaft (31) to a base plate (29). The sector gear (32), which is movably pivoted, is rotated, and the rotation of the sector gear (32) causes the closing lever of the door lock (26) linked to the sector gear (32) with the cable (33). (34) in FIG. 10
In the direction indicated by the arrow. This close lever (3
With the rotation of 4), the arm of the latch in the door lock (26)
By pressing (35), the latch is rotated to the full latch position where the latch is completely engaged with the striker, whereby the door (2) can be forcibly closed from the half latch position to the full latch position.

When the latch moves to the full latch position,
The closure motor (27) rotates in the reverse direction, and the sector gear (32) and the close lever (34) return to their original positions and rotate. (43)
Abuts the sector gear (32) and
This is a neutral switch for detecting the original position of (B).

When the door (2) reaches the half-latch position, the door lock (26) has an open lever interlocked therewith.
A half-latch switch that detects the operation of (37) to detect the half-latch position, and a full switch that is provided on the movement path of the close lever (34) and detects that the close lever (34) has moved to the full-latch position (41) is provided.

The upper end of the release lever (46) pivotally attached to the door lock (26) by the shaft (46a) has a bent notch (4).
6b) and the connecting piece (46c) having the shaft (46
a) An arc-shaped long hole (46d) is formed on the side. In the notch groove (46b) of the connecting piece (46c), the collar (46e) into which the end of the cable (47) in which the terminal portion (47a) is fixed to the terminal is inserted
Is fixed. The long hole (46d) has an operating handle (52)
The end of the cable (53) connected to the cable is movably connected.

The collar (46e) into which the cable (47) is inserted is fixed to the connecting piece (46c) of the release lever (46) of the door lock (26) mounted on the door (2). Lock (26)
The cable (47) is connected without falling off. Thereafter, the unlocking device (C) and the door lock (26) are respectively attached to predetermined positions of the door (2), and the other terminal of the cable (47) is connected to the output lever (45) of the unlocking device (C). Can be connected to the unlocking device (C) and the door lock (26). Therefore, there is no need to connect the cable (47) to the door lock (26) attached to the narrow space of the door (2), and the connection can be performed efficiently.

In FIG. 1, (21) is a battery as a power source mounted on a vehicle, (23) is a vehicle speed switch for detecting a running state of the vehicle, and (38) is a door moving by operating an operation switch (20). A control circuit that controls the device (A) according to each situation and has a priority circuit (60). The control circuit (42) controls the closure device (B) and the unlocking device (C) according to each situation. (44) is the motor of the unlocking device (C), (49)
Is a fully open switch for detecting the fully open position of the door (2), (59)
Is connected in series between the battery (21) and the control circuit (38) and is turned on by operation of an ignition switch, (R1) and (R2) are closure relays, (R3)
Is a release relay, and (R6) and (R7) are door movement relays.

A priority circuit (60) provided in the control circuit (38)
When the permission switch (59) is on, the operation of the operation switch (20) is enabled to drive and control the door moving device (A). When the permission switch (50) is off, the operation switch Disable the operation of (20) and set the operation switch (2
0) is open switch (20a) or close switch (20
b) is turned on first, then the enabling switch
Even if (59) is turned on, control is performed so that the door moving device (A) does not operate. That is, the operation switch (20)
Before the operation switch (20) is operated,
If the permission switch (59) is not turned on, the priority circuit
Disabled by (60).

An operation handle (52) provided inside and outside the vehicle of the door (2) is connected to a long hole (46d) of a release lever (46) of a door lock (26) through a cable (53). By operating the open lever (37) through the release lever (46), the latch of the door lock (26) and the striker are released to open the door (2). it can. (51) is a handle switch for detecting the operation of the operation handle (52), even when the closure device (B) is operating, by detecting the operation, reverse rotation of the closure motor (27), Return the closure device (B) to its original position. (22) is a shift lever for changing gears of the automobile.

Next, the operation of the embodiment of the present invention will be described with reference to the control circuit shown in FIG. The vehicle speed detection switch (23) indicates that the vehicle is stopped, and the door switch (48)
Operate the ignition switch while the door is detecting the open state of the door (2).
Turn on (59) and close the operation switch (21).
When (20b) is operated to close the door, the operation is effectively controlled by the priority circuit (60), and after the operation alarm device (19) sounds, after a lapse of a predetermined time, the close relay (R7) is excited, The control circuit (38) controls the power of the battery (21) so as to be supplied to the door moving motor (6). Door moving motor
When power is supplied to (6), the door moving motor (6) rotates in the forward direction, and the driving pulley is driven via the pinion (6a), the first reduction gear (39), and the second reduction gear (40). (7) rotates, and the toothed belt (11) moves along the door closing direction of the door (2).
Thus, the door (2) is forcibly moved in the door closing direction via the belt stopper (13), the belt joint (15), and the door side bracket (12). When the operation switch (21) is operated, the operation alarm device (19) continues to sound for safety.

When the door (2) reaches about 20 to 30 cm before the fully closed position, the temporary stop switch (50) is instantaneously activated, and the control circuit (38) stores this and temporarily suspends for a predetermined time. The flag is set, the door moving motor (6) of the door moving device (A) is stopped, and the door (12) is temporarily stopped just before the fully closed position.
When the operation switch (20) is operated during the temporary stop, the motor brake relay (R8) is energized, and the circuit including the door moving motor (6) is closed.
A motor brake is applied to the motor moving motor (6) so that the door (12) does not move unnecessarily.

After the door (2) is temporarily stopped, an operation switch
Interrupt the operation of (21) and then again
When the close switch (20b) of (20) is operated to close the door, the operation alarm device (19) is activated again, and the door moving motor (6) starts operating immediately to bring the door (2) to the fully closed position. Move toward.

When the door (2) is closed to a position slightly before the half-latch position and the vehicle body side connector (24) comes into contact with the door side connector (25), the control circuit (42) in the door (2) is opened from the vehicle body side. Is supplied with power. When the door (2) moves to the half-latch position, the striker engages with the latch of the door lock (26), the half-latch switch (36) detects the half-latch position, and the door moving device is controlled by the control circuit (38). The power supply to the door moving motor (6) in (A) is controlled to be stopped to stop the door moving device (A).

Subsequently, the closure relay (R1) is excited, the closure motor (27) of the closure (B) is operated, and the sector gear (32) in the closure (B) is moved through the speed reduction mechanism (28). In FIG. 12, the arm of the latch is rotated in the direction indicated by the arrow, the closing lever (34) is rotated in the closing direction via the cable (33), and is moved to the half-latch position by the closing lever (34). By pressing (35), the latch is forcibly rotated toward the full latch position, and the door (2) is reliably moved toward the fully closed position by the force of the closure (B).

When the full switch (41) detects the movement of the close lever (34) to the full latch position, the close relay
(R2) is excited, the closure motor (27) is controlled to rotate in the reverse direction, the sector gear (32) returns to the neutral position, and the neutral switch (43) detects the neutral position.
The operation of (27) is stopped, the closure (B) returns to the original position and stops, and the power supply to the closure device (B) is stopped.

When the door (2) is in the fully closed state and the permission switch (60) is on, the operation of the open switch (21a) of the operation switch (21) causes the operation to be performed. Is effectively controlled by the priority circuit (60),
When the release relay (R3) is excited and the motor (44) of the unlocking device (C) is operated, the output lever (45) is operated in the direction indicated by the arrow in FIG. 9 and released via the cable (47). The release operation of the lever (46) and the open lever (37) releases the engagement between the latch and the striker, and the door (2) is slightly pushed out of the full latch position in the door opening direction by the sealing reaction force. At that time, the terminal part (53a) of the cable (53)
The operating force is not transmitted to the operation handle (52) by swinging the long hole (46d).

When the door (2) is moved in the direction of opening the door and the door switch (48) detects that the door (2) is open, the operation of the unlocking device (C) is controlled to stop and energize. Members (45
A), the door is returned to the neutral position, and the door moving motor (6) is operated, and the door (2) is moved to the door moving device.
(A) is moved toward the full opening direction, and the door (12)
The fully open switch (49) detects the fully open position of
The operation of the door moving device (A) stops.

For example, when the operation switch (20) fails,
When the open switch (20a) or the close switch (20b) is kept on, even if the ignition switch is operated and the permission switch (59) is turned on, the permission switch (59) is turned on first. On, priority circuit
Since (60) is not in the set state, the door moving device (A) does not operate.

Therefore, even if a failure occurs in the operation switch (20) and the permission switch (59) is turned on by operating the ignition switch without knowing the failure, the door (2) does not suddenly start moving. So safe. When the door (2) is stopped and the door (2) is manually opened and closed, the door movement drive unit (8) of the door moving unit (A) is reversed and the door (2) is manually opened and closed. can do. At the time of manual operation, the circuit including the door moving motor (6) is an open circuit, and the motor brake is not applied, so that the door (2) can be moved lightly.

[0043]

[Effects of the Invention] As described above, the present invention provides a control circuit
If the operation switch is operated before the enable switch,
By providing a priority circuit that invalidates the operation of the operation switch, even if a failure occurs in the operation switch, the operation of the permission switch does not cause the door to suddenly start moving, preventing malfunction and improving safety. Can be improved.

[Brief description of the drawings]

FIG. 1 is a control circuit diagram of one embodiment of the present invention.

FIG. 2 is a schematic perspective view of a main part of an automobile provided with an automatic door opening / closing device to which the present invention is applied.

FIG. 3 is a plan view of the door moving device.

FIG. 4 is a sectional view taken along line XX in FIG.

FIG. 5 is a plan view of the door moving device seen through the step bracket.

FIG. 6 is a plan view of a main part of the belt stopper.

FIG. 7 is a perspective view in which a part of the door moving device is cut away.

FIG. 8 is a longitudinal sectional view of a main part of an automobile.

FIG. 9 is a side view of the lock release device and the door lock.

FIG. 10 is a perspective view of a door lock.

FIG. 11 is a perspective view of a main part of a release lever.

FIG. 12 is a side view of the closure device.

FIG. 13 is a plan view of the door movement drive unit with a cover removed.

14 is a sectional view taken along line YY in FIG.

FIG. 15 is an exploded perspective view of a door movement drive unit.

[Explanation of symbols]

(A) Door moving device (1) Body (1a) Side sill (2) Door (4) Step (5) Step bracket (6) Door moving motor (drive source) (8) Door moving drive (20) Operation switch ( 26) Door lock (38) Control circuit (59) Enable switch (60) Priority circuit

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-61-17685 (JP, A) JP-A-61-18375 (JP, A) JP-A-60-185626 (JP, A) JP-A-6-185626 58047 (JP, A) Japanese Utility Model 2-150377 (JP, U) Japanese Utility Model 62-156020 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A door moving device for forcibly moving a door in an opening and closing direction by a driving source, an operation switch provided near a driver's seat, and a door moving device controlled to be operable in the opening and closing direction by operating the operation switch. In an automatic door opening / closing device having a control circuit and a permission switch for controlling supply of power to the control circuit, the control circuit invalidates the operation of the operation switch when the operation switch is operated before the permission switch. Automatic door opening and closing device, characterized in that a priority circuit is provided.