JPH0575878B2 - - Google Patents

Description

[Detailed description of the invention]

[Technical field] The present invention relates to an automatic opening/closing method that opens and closes transparent plates, opaque plates, panels, etc. (hereinafter referred to as opening covering materials or panels) for closing openings such as windows, doorways, ridge openings, etc. in response to switch operations. The present invention relates to devices, particularly, but not exclusively, to automatic opening/closing devices for side windows and sunroofs of automobiles. [Prior Art] For example, an automobile sunroof is equipped with an automatic opening/closing device that tilts and/or slides the sunroof (roof panel) open/close in response to a driver's switch operation. Conventionally, a drive control device for a vehicle sunroof detects a motor load using a motor current detection resistor, compares this with an overload reference value, and automatically stops the motor when an overload occurs. For example, in the automatic opening/closing device disclosed in Japanese Patent Application Laid-Open No. 59-23727, a resistor for detecting motor current is connected between the motor and the power supply, and the voltage of the resistor is monitored until the voltage reaches a predetermined value. If it exceeds the limit, it is determined that there is an overload and motor energization is stopped. Stopping the motor energization in the event of an overload in this manner is particularly preferable in a one-touch response type automatic opening/closing device that automatically drives the panel to fully close or fully open in response to one-touch switch closure. However, the panel opening/closing mechanism freezes,
If the mechanism is temporarily overloaded due to getting caught in sand and the panel moves if you continue to energize the motor, or if you move the panel by energizing the motor, it will then move with a steady load. Even in such a case, the motor energization is uniformly stopped and the abnormal load is stopped, so that the motor does not respond to the operation of the open/close instruction switch means. [Object of the Invention] An object of the present invention is to safely energize the motor only while the open/close instruction switch means is operated, that is, manually operate the motor, even when the motor stops due to overload. [Structure of the Invention] The automatic opening/closing device for an opening covering material of the present invention includes an electric drive mechanism including an electric motor 11 and an opening/closing mechanism that opens and closes the opening covering material 23 according to forward and reverse rotation of the electric motor 11; Motor drivers 230, 250 for forward and reverse energization; opening detection means 200a, 200b for generating an opening signal corresponding to the drive position of the opening/closing mechanism of the opening covering material 11; load detection means 240 for detecting the load of the opening/closing mechanism; Overload detection means 110 detects an overload by comparing the load detected by the load detection means 240 with an overload reference value; open/close instruction switch means SWMO, SWO, SWMC for instructing opening/closing of the opening covering material 11; , SWC, SWD,
SWU; open/close instruction switch means SWMO, SWO,
Opening that instructs the motor drivers 230 and 250 to forward, reverse, and stop the electric motor 11 according to instructions from SWMC, SWC, SWD, and SWU and the opening signal;
Close control means 110; stop control means 110 that instructs the motor drivers 230, 250 to stop the electric motor 11 in response to overload detection by the overload detection means 110; open after the stop control means 110 instructs to stop; Close instruction switch means SWMO, SWO,
Continuation detection means 110 detects the continuation of the instructions of SWMC, SWC, SWD, SWU for a predetermined long time;
Re-drive control means 11 that instructs the motor drivers 230 and 250 to energize the electric motor 11 corresponding to the instruction while there is an instruction from SWMC, SWC, SWD, and SWU.
0; Note that symbols inside brackets indicate corresponding elements of the embodiment shown in the drawings. [Operation] According to this, if the open/close instruction switch means is continuously instructed (closed) for a long time after motor energization is stopped due to abnormal overload, motor energization will start after the elapse of the specified time. When the instruction (close) of the open/close instruction switch means disappears (opens), the motor energization is stopped. As a result, if the opening/closing mechanism freezes or sand gets caught in the mechanism, resulting in a temporary overload and the opening covering material will move if the motor continues to be energized, If the opening covering material is moved under force and then moved under a steady load,
The opening covering material can be driven by operating the open/close instruction switch means. This motor energization is performed under the supervision and caution of the operator only while there is an instruction from the open/close instruction switch means. When the operator confirms that the opening cover is immovable, the open/close instruction switch means is opened. Since the motor energization is stopped at this point, safety is also ensured in the event that the mechanism cannot move due to a serious abnormality. Other objects and features of the present invention will become apparent from the embodiments described below with reference to the drawings. [Embodiment] FIG. 1 shows an outline of an electric drive mechanism according to an embodiment of the present invention. This embodiment is a car roof 2
This is to drive and control the loop panel 23 that opens and closes the opening 22 of 1. On the roof 21 of the car,
An opening 22 is formed, and this opening 22 is slid open/closed and tilted open/closed by a loop panel 23. Panel 23 is actuated by drive cables 24,25. Sunroof panel 23 has opening 2
2 (only one side is shown in FIG. 1). As shown in FIG. 2, the front edge of the bracket 26 is provided with an elongated hole 27 that descends toward the front of the vehicle, and a pin 28a of the front guide 28 is engaged with the elongated hole 27. A front shoe 29 is attached to the lower part of the front guide 28, and a front shoe 29 is attached to the lower part of the front guide 28.
One end of a front ring 30 is rotatably connected to the bracket 8 by a shaft 31, and the other end of the front ring 30 is pivotally connected to the bracket 26 by a shaft 32. As shown in FIG. 4, an engagement pin 38 is arranged on the rear edge side of the bracket 26, and a plate 33 is fixed with locking pins 34, 35. A guide slot 36 is formed in this plate 33, and in this slot 36,
There is a horizontal portion provided at the front of the vehicle, and an inclined portion rising from the rear end of the horizontal portion toward the rear of the vehicle. Further, a tilt pin 3 is provided at the front end of the plate 33.
7 has been planted. The link 39 has a roller pin 40 at its front end, a rear shoe 41 at its rear end, and is rotatably pivoted, and is formed in an arc shape centered on the front end of the guide slot 36, which can be engaged with a tilt pin 37 at its upper end. It has a cutout groove 42 and a guide pin 43. The guide pin 43 is engaged and guided in the guide slot 36. The end portions of the drive cables 24, 25 are connected to the rear shoe 41, as shown in FIG. Therefore, the drive cables 24 and 25 move forward and backward through the rear shoe 41, the guide ring 39, the guide pin 43 of the guide ring 39, and the guide slot 36 in which the guide pin 43 is engaged, to the bracket 26 and further to the front. The signal is transmitted to the guide 28. As shown in FIGS. 4 and 5, the front shoe 29 and the rear shoe 41 are connected to the roof opening 2.
It is engaged and guided by guide rails 44 disposed on both sides of 2. Further, the foot portion 40a of the roller pin 40 is inserted into the rail groove 44a on the inside side of the vehicle interior of the guide rail 44.
is guided to engage. On the other hand, the rail groove 4 outside the vehicle interior of the guide rail 44
4b, a space 38a of the engagement pin 38 is engaged and guided. Furthermore, as shown in FIGS. 4 and 6, a block 45 is fixedly disposed within the guide rail 44, and a block 45 is provided on the passenger compartment side for guiding the head 30 of a roller pin 40 provided on a guide ring 39. An inclined groove 46 for guiding a head 38 of an engaging pin 38 fixed to the bracket 26 is provided on the outside of the vehicle interior.
7 is formed. Further, a notch is formed in the flange portions 48 and 49 of the guide rail 44 at a location where the block 45 is arranged. Then,
As the engagement pin 38 moves up the inclined groove 47 of the block 45, the leaf spring 51, which had been pressed by the lower end 26a of the bracket 26, moves upward and engages with the opening 50a of the block 45 (see Fig. 4). . Further, an arm 52 is arranged on the front guide 28, and a rain gutter 53 is connected to the rear end.
Therefore, the rain gutter 53 can always completely capture raindrops from the rear end of the roof panel 23 (Figs. 1 and 4).
(see Figures and Figure 7). To explain the operation of the mechanism explained above, normally,
Panel 23 closes opening 22 as shown in FIG. This is the "fully closed" position. This "fully closed"
In this position, the guide pin 40 of the guide ring 39 is slightly to the left of the lower end of the inclined groove 46 of the block 45, and the guide pin 43 is located at the intersection of the horizontal part of the guide slot 36 and the upwardly sloped part to the right. When the drive cable is actuated to move the rear shoe 41 toward the rear of the vehicle (to the right in FIG. 5), the guide ring 39 also moves backward. The guide pin 43 is engaged and guided from the intersection of the horizontal part and the inclined part of the guide slot 36 of the plate 33 to the inclined part, and is inserted into the panel 2 through the plate 33, that is, the bracket 26.
3 is pulled rearward and its rear edge is urged downward. Therefore, the engaging pin 38 fixed to the bracket 26 descends along the inclined groove 47 of the block 45, and the movable panel 23 descends while moving rearward (FIGS. 7 and 8). At this time, in the "fully closed" position, as shown in Figures 2 and 5,
The pin 31 is lowered slightly below the pin 32, but as it descends, the front ring 30 becomes horizontal as shown in FIGS. 3 and 8.
It can be stored in the rear lower part of the roof 21 of an automobile, and the opening 22 is opened by sliding the panel 23 (slide opening). The state in which the panel 23 is moved to the limit position at the rear of the vehicle (to the right in FIG. 5) by this slide is "fully opened".
As described later, this area from the "fully closed" position to the "slide fully open" position is the "operating mode" region from the "fully closed" position to the position just before fully closed, and the area from the position just before fully closed to the slide fully open position. It is divided into ``operation mode (IA+IB+IC)'' areas. On the other hand, when the rear shoe 41 is moved forward (to the left in FIG. 5) by driving the drive cable 25 from the "fully closed" position shown in FIG. 40 and the guide pin 43 are also moved horizontally forward, and the guide pin 40 reaches the upper left slope of the lower end of the inclined groove 46 of the block 45 (FIG. 4). This is the "tilt down complete" position. As will be described later, this region from the "fully closed" position to the "tilt down complete" position is defined as the "operation mode" region. When the rear shoe 41 is further moved forward (to the left in Figure 5) from the "tilt down complete" position,
The pin 40 rises along the inclined groove 46 of the block 45, and as a result, the guide ring 39 rotates clockwise while moving forward and rises accordingly (see FIG. 9). This causes the panel 23 to tilt up. By the time the guide pin 40 passes the upper end of the inclined groove 46, the pin 43 has reached the left end of the horizontal part of the guide slot 36 of the plate 33, the guide ring 39 rotates clockwise around the pin 43, and the notch of the guide ring 39 is rotated clockwise. The groove 42 engages with a tilt pin 37 implanted in the plate 33. When the rear shoe 41 moves further forward, the panel 23 reaches the "tilt-up complete" position shown in FIG. As will be described later, this region from the "tilt-down complete" position to the "tilt-up complete" position is defined as the "operation mode" region. As mentioned above, the panel 23 covers all the brackets 2.
6, so the roof 21 of the automobile
After assembling the panel 23 to the opening 22, place the panel 23 into the opening 22 with the bracket 26 in the "fully closed" position as shown in FIG.
are assembled and fixed to the bracket 26 by bending the weather strip and fitting them together. As described above, when the shoe 45 is slid toward the rear of the vehicle (to the right in the drawings) from the "fully closed" position (FIGS. 5 and 11b), the panel 23 slides downward and opens (see FIGS. (Fig. 11d), and then slide further to fully open (Fig. 11d). Panel 23
When the shoe 45 is driven forward of the vehicle (toward the left in the drawing) from the "slide fully open" position, the state shown in FIG. 11c changes to the state shown in FIG. 11b, where the panel 23 closes the opening 22 and A weather strip on the leading edge closes the opening 22. When the shoe 45 is further driven forward of the vehicle (toward the left in the drawing) from this "fully closed" position, it first reaches the "tilt down complete" position (Fig. 4), and then the panel 23
The rear end rises to the "tilt-up complete" position (FIGS. 10 and 11a). Conversely, when the shoe 45 is driven toward the rear of the vehicle (toward the right in the drawing) from the "tilt-up complete" position (Figures 10 and 11a), the panel 23 first moves to the "tilt-down complete" position (Figure 4) and then The opening 22 is completely closed in the "fully closed" position (FIG. 5), and then in the "slide fully open" position. In this way, by simply sliding the shoe 45 backward (rightward) and sliding forward (leftward), the panel 23 can be tilted up - partially opened - tilted down - fully closed -
Change the state from slide partially open to slide fully open,
Also, on the contrary, fully open the slide - partially open the slide.
The state changes as follows: fully closed - tilt down completed - tilt partially opened - tilt up completed. Cables 24 and 25, reducer 9 and motor 1 that drive the shoe 45 on the side of the vehicle, respectively.
The cables 24 and 25 are connected to a cable drive mechanism mainly composed of the motor 11, and in response to forward and reverse biasing of the motor 11, the cables 24 and 25 are driven forward and backward in opposite directions by the reduction gear 9 section. Figure 12a shows a plan view of the cable drive mechanism.
A cross-sectional view is shown in FIG. 12b. The reducer 9 includes a worm 14 ₁ fixed to the rotating shaft of the motor 11 and a worm wheel gear 1 that meshes with the worm 14 ₁ and is pivotally connected to the rotating shaft 15.
4 ₂ , a gear 14 ₃ connected to the gear 14 ₂ via a friction crack 16 2 including a disc spring 16 ₁ and fixed to the rotating shaft 15; a gear 14 ₅ meshing with the gear 14 ₃ and fixed to the rotating shaft ₁₈ ; , a gear 1 fixed to the rotating shaft 18 and meshing with the toothed cables 24 and 25;
0 etc. constitutes a gear train. At the tip of the rotating shaft 15, as shown in FIG. 13, there is an eccentric bearing 19 having an eccentric circumferential surface 19a.
The cam 2 is fitted onto the circumferential surface 19a.
0 is pivoted. A planetary gear 201 is pivotally mounted on the eccentric bearing 19. The planetary gear 201 meshes with the housing inner teeth 210, and a pin 202 is formed on the planetary gear 201. Further, a cam 20 is pivotally attached to the leading end of the rotating shaft 15. A through groove is formed in the cam 20, and a pin 202 is engaged with this groove. As a result, the bearing 19 rotates as the rotating shaft 15 rotates, the planetary gear 201 meshes with the housing inner teeth 210 and rotates differentially, the pin 202 moves, and the cam 20 is pushed by the pin 202. Rotate. On the circumferential surface of the cam 20, there is one groove 20b in the upper stage.
However, two grooves 20a and 20c are formed in the lower part, and a limit switch 200b and a limit switch 200a are arranged in the upper part and the lower part of the circumferential surface, respectively, facing each other. In this embodiment, the opening/closing states of the panel 23 are roughly described as a slide open state (mode), a slide closed state (mode) from just before the slide is fully closed to fully closed, and a tilt closed state (mode) from fully closed to the completion of the chill-down. mode),
and a tilt open state (mode), and the panel opening/closing control mode is specified in each state. More specifically, there are two switches 200a and 200b for detecting the opening.
The combination of opening and closing can only roughly be expressed in four states, but on the lower stage of the circumferential surface of the cam 20,
In addition to the groove 20a, a groove 20c is formed, and this groove 2
0c, the panel 23 is fully closed switch open side 10
The switch 200a is opened at an opening of about cm. A mode in which the switch 200a is opened at the groove 20c (temporary stop instruction state: mode IB)
is in the range of the modes mentioned above. FIG. 14 shows the relationship between the rotation angle of the cam 20, the open and closed states of the limit switches 200a and 200b, and the panel opening/closing control operation mode. Among the modes, (IB) is a temporary stop instruction mode, and the mode is a mask section. In addition, cam 2
0 rotates counterclockwise in FIG. 14 by energizing the electric motor 11 to rotate normally from the tilt-up completed state (the state shown at the leftmost end of FIG. 14: corresponds to FIG. 11a), and the panel 23 is tilted. Down complete,
As the limit switches 200a and 200b are driven to be fully closed, immediately before fully closed, 10 cm before fully closed, and fully open, the limit switches 200a and 200b are driven to open and close as shown in FIG. The cam 20 rotates clockwise in Fig. 14 by reversely energizing the electric motor 11 from the fully open state (the state shown at the rightmost end of Fig. 14: corresponds to Fig. 11Gd), and the panel 23 is fully closed by 10 cm. As shown in FIG. 14, the limit switches 200a and 200b are moved to the forward, fully closed position, fully closed, tilt down completed, and tilt up completed.
Open and close drive. In this embodiment, overload detection (particularly when a human body is caught) and motor stop in the event of an overload are performed, and the mode is such that the motor stops 10 cm before the fully closed position for safety reasons. This is the time to drive the slide towards fully closing. Referring again to FIGS. 12a and 12b.
When the cable 24 or 25 is stopped and restrained by a force exceeding a certain level, the friction clutch 16 ₂ slips and the gear 14 ₂ is rotationally driven by the motor 11, but the shaft 15 and the gear 14 fixed to the shaft are
₃ does not rotate. That is, the clutch ₁₆₂ is provided as a mechanical safety mechanism. FIG. 15 shows an electric circuit that performs forward and reverse drive energization and energization control of the motor 11. Referring to FIG. 15, one end of the motor 11 is connected to the power supply voltage +12V or the shear sea earth via the relay contact 231 of the motor driver 230.
The other end is connected to the power supply voltage +12 MV or to the sea-sea ground via a load detection resistor 240 and a relay contact 232. The relay contacts 231 and 232 that make this connection are connected to the relay coil 2, respectively.
33 and 234. In this embodiment, a resistor 240 is used as load detection means. Further, the relay coils 233 and 234 are connected to the drive transistor 25 of the relay drive circuit 250, respectively.
1 and 252. This relay drive circuit 250 includes an electric control device 100, which will be described later.
Output ports ₀₀ and ₀₇ of the microprocessor 110 are connected. When the transistor 251 is turned on, the relay coil 233 is energized and the relay contact piece 231 switches to contact with the sea-earth side, and the power supply voltage +12V-
Contact piece 232 - Resistor 240 - Motor 11 - Contact piece 23
A current flows through the path 1-shear/shear, the motor 11 rotates forward, and the sunroof panel 23 opens. When the transistor 252 is turned on, the relay coil 234 is energized, the relay contact piece 232 switches to the ground side, and the power supply voltage +12V - the contact piece 231-
A current flows through the path of motor 11-resistor 240-contact piece 232, causing motor 11 to reverse rotation and panel 23 to close. The constant voltage power supply circuit 310 applies a constant voltage to each part of the circuit.
Give Vcc. The filter circuit 260 is a filter that removes high frequency fluctuations (high frequency components) of the motor load detection voltage (voltage of the resistor 240).
Diodes 261 and 262 are provided to protect the subsequent operational amplifier by cutting an input voltage higher than Vcc to _Vcc +Vr (Vr is the forward voltage drop of the diode) and cutting an input voltage lower than ground potential to -Vr. Amplification circuit 270 amplifies the output of filter circuit 260 to a required level. This amplifier circuit 27
The output Vs of 0 will be treated as the load detection voltage from now on. The analog output Vs of the amplifier circuit 270 is applied to an 8-bit A/D converter 280, and 8-bit digital data representing Vs is provided to the microprocessor 110. Power-on reset circuit 290 is connected to the reset terminal of microprocessor 110 to reset microprocessor 110 when power is applied to each circuit. Input port I ₂₂ of microprocessor 110 ~
I ₂₇ has a tilt down instruction switch SWD, a tilt up instruction switch SWU, and a manual slide open instruction switch as means for instructing the opening and closing of the panel 23.
SWMO, automatic slide fully open instruction switch SWO,
A manual slide close instruction switch SWMC and an automatic slide fully close instruction switch SWC are connected. These switches remain closed only while they are pressed down, and return to their open state when they are released. First, explain what it means to close each switch.
summarized in the table. The opening and closing readings of these switches by microprocessor 110 are determined by the aforementioned modes. FIG. 14 shows the sections in which the open and close readings of each switch are performed. In Fig. 14, a section where a specific switch is not written means that no reading is performed. Therefore, even if that switch is operated, the panel opening/closing drive assigned to that switch will not work. Not done.

〔Effect of the invention〕

As explained above, according to the present invention, when the motor energization is stopped due to an abnormal overload, if the open/close instruction switch is closed for 10 seconds continuously, the motor will be turned in the direction corresponding to the closed switch. Motor energization starts when the switch is opened, and motor energization stops when the switch is returned to the open position. Therefore, when the panel opening/closing mechanism is frozen or temporarily overloaded due to sand getting stuck in the mechanism, the panel can be operated by operating a switch. When the mechanism cannot move due to damage to the mechanism, this motor energization is done under the operator's attention and supervision, and when it is determined that it will not move, the motor energization is stopped, so that objects cannot be stuck between the panels. There are no problems with the motor being driven as it is, or the motor being energized for a long time even though it is not moving. Panel drive operability is improved when used in environments prone to freezing or in environments with a lot of dust such as mud or sand.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a panel drive mechanism according to an embodiment of the present invention, and shows an outline of the opening/closing mechanism for a sunroof panel installed on the roof of an automobile. 2 and 3 are enlarged side views showing the mechanism that supports the front part of the panel 23, with FIG. 2 showing the fully closed state and FIG. 3 showing the sliding open state. Figure 4 shows panel 23
FIG.
Figure 5 corresponds to the section taken along line IX-IX in Figure 1.
FIG. 3 is a sectional view showing the panel in a fully closed state.
FIG. 6 is a sectional view taken along the line -- in FIG. 4. FIG. 7 corresponds to the section taken along line IX--IX in FIG. 1, and is a sectional view showing a state in which the panel is slightly lowered to slide open. FIG. 8 corresponds to the section taken along line IX--IX in FIG. 1, and is a sectional view showing a state in which the panel is slightly lowered and further slid open a little. FIG. 9 is a cross-sectional view taken along line IX--IX in FIG. 1, showing a state in which the panel is slightly tilted up. FIG. 10 corresponds to the section taken along line IX--IX in FIG. 1, and is a sectional view showing a state in which the panel is completely tilted up.
Fig. 11a is a side view schematically showing the state in which the panel has completed tilting up, Fig. 11b is a schematic side view showing the panel in the fully closed state, and Fig. 11c is a schematic side view showing the state in which the panel is lowered and slides open. The side view, Figure 11d, is a schematic side view when the panel is fully slid open. FIG. 12a is an enlarged plan view of the cable detection mechanism, partially cut away. Fig. 12b is a cross section taken along the line XB-XB of Fig. 12a, and Fig. 13 is an exploded perspective view of the rotating shaft 15 shown in Fig. 12b. FIG. 14 shows the cam 20 and limit switch 2 shown in FIGS. 12a and 12b.
00a, 200b in the panel open/closed state, rotation of the cam 20, and opening/closing of the limit switches 200a, 200b. FIG. 15 shows limit switches 200a, 2
00b is a circuit diagram showing an electric circuit that energizes a panel opening degree drive motor in response to an operation mode signal corresponding to opening or closing, or in response to operation of an open or close instruction switch. 16a to 16m are flowcharts showing the control operation of the electric circuit microprocessor 110. FIG. 17a is a graph showing overload detection timing by a conventional overload protection device, and FIG. 17b is a graph showing overload detection timing in an embodiment of the present invention. Component code, 9...reduction gear, 10, 14 ₂
~14 ₅ ...Gear, 11...Electric motor, 14...
... Worm, 15, 17, 18 ... Rotating shaft, 19
...Eccentric bearing, 20...Cam, 20a to 20c
...Groove, 21...Roof, 22...Opening, 23...
...Roof panel (opening covering material), 24, 25... Drive cable, 26... Bracket, 28... Front guide, 29... Front shoe, 36...
Guide slot, 39...Guide ring, 41...
... Rear shoe, 43 ... Guide pin, 44 ... Guide rail, 45 ... Block, 47 ... Inclined groove, 52 ... Stopper piece, 201 ... Planet gear, 210 ... Casing internal tooth, 202 ... Pin, 200a, 200b...Limit switch (opening detection means), code of electric circuit element, 110...
...Microprocessor (opening/closing control means), 231,
232... Relay contact piece, 233, 234... Relay coil, 240... Resistor (means for detecting load), 230, 250... Motor driver,
SWMO, SWO, SWMC, SWC, SWD, SWU
...Open/close instruction switch, 260...Filter circuit, 270...Amplification circuit, 290...Power-on reset circuit. 310... Constant voltage circuit.

Claims (1)

[Scope of Claims] 1. An electric drive mechanism including an electric motor and an opening/closing mechanism that drives the opening/closing member to open or close in accordance with the forward/reverse rotation of the electric motor; a motor driver that energizes the electric motor in the forward/reverse rotation; the opening/closing member; opening detection means for generating an opening signal corresponding to the drive position of the opening/closing mechanism; load detection means for detecting a load on the opening/closing mechanism; comparing the load detected by the load detection means with an overload reference value; overload detection means for detecting overload; open/close instruction switch means for supporting opening and closing of the opening covering material; open/close control means for instructing the motor driver to forward, reverse, or stop; stop control means for instructing the motor driver to stop the electric motor in response to overload detection by the overload detection means; Continuation detection means for detecting continuation of the instruction of the open/close instruction switch means for a predetermined long time after the control means instructs stop; and, in response to the detection of the continuation by the continuation detection means,
An automatic opening/closing device for an opening covering material, comprising: re-drive control means for instructing the motor driver to energize the electric motor corresponding to the instruction while there is an instruction from the opening/closing instruction switch means.