JPH0332490B2 - - Google Patents

Description

[Detailed description of the invention]

[Purpose of the invention] (Industrial application field) The present invention provides a light-transmitting plate, an opaque plate, a panel, etc. (hereinafter referred to as an opening covering material or panel) for closing openings such as windows, doorways, roof openings, etc., by a switch operation. The present invention relates to an automatic opening/closing device that opens and closes in response to the traffic conditions, and particularly relates to an automatic opening/closing device for side windows and sunroofs of automobiles, although it is not intended to be limited thereto. For example, an automobile sunroof is equipped with an automatic opening/closing device that tilts 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 temperature detection resistor, compares this with an overload reference value, and automatically stops the motor when an overload occurs. In a constant load mechanism, such a safety stop can be accomplished relatively easily. However, with the above-mentioned sunroof mechanism, when the sunroof is opened, the load is large until the front end of the slide panel leaves the weather strip, and then decreases when the sunroof leaves, and when the sunroof is closed, the load is raised by raising the link to lift the rear end of the slide panel. Furthermore, the load increases rapidly after the front end of the slide panel contacts the weather strip, and if a deflector arm is provided, the load increases when the deflector arm is pressed down, resulting in a significant load even during normal operation. It fluctuates. To prevent malfunctions even under such load fluctuations,
In the invention of Japanese Patent Application No. 59-20726, which was filed before this application and published after this application, the entire operating stroke of the slide panel is divided in accordance with load changes, and an overload reference value is set for each. A signal generating means that generates an electric signal in conjunction with the electric drive mechanism is coupled to obtain a signal corresponding to the position of the slide panel, and based on this signal, the overload reference value is changed, and the actual motor compared to the load. According to this, since the overload reference value can be selected in accordance with the load of the entire stroke of the slide panel, there is no malfunction even in response to the above-mentioned load fluctuations. However, during the entire stroke of the slide panel when closing the sunroof, from the point just before the fully closed position to the fully closed position, that is, from the time when the link is raised and the rear end of the slide panel is lifted, the front end of the slide panel is exposed to the weather strip. During the process of contacting and compressing the weather strip until the slide panel is completely closed, the load changes rapidly, and when the weather strip is compressed, the load becomes extremely large. Furthermore, since the distance of this stroke is small, it is difficult to set several types of overload reference values, and therefore, in this stroke from just before fully closing to fully closing, the extremely increasing load is not detected due to obstructions, etc. In order to prevent a misdiagnosis of a pinched object, the mask section was designed to stop the overload protection device. However, due to the mechanism of the sunroof, there is a slight gap between the front edge of the slide panel and the front edge of the sunroof opening even during the process from the position immediately before fully closed to fully closed, so there was an obstacle in the gap. In this case, the slide panel is prevented from fully closing and a large load is placed on the motor. Such a gap may be mechanically necessary, or it may be virtually impossible to reduce to zero due to product assembly errors, or even if it is a small gap in the design, it may be difficult to maintain the dimensions during or after assembly. Due to misalignment etc.
Obstacles may also be present. (Prior art) Japanese Patent Application No. 58-43823 discloses that when the second operation switch 32f is closed to the first contact, the opening covering material is driven to close, and when the remaining opening becomes 20 cm, the closing drive is automatically stopped. The second operating switch 32f continues to stop while the first contact is closed, and the second operating switch 32f
continues to stop the closing drive of the opening covering material until it switches to the second contact and then closes to the first contact again,
A drive control device is disclosed that includes a temporary stop circuit 14 that restarts the closing drive when the second operation switch 32f is closed again to the first contact point and drives the opening covering member to fully close. According to this, the opening covering material temporarily stops before it is fully closed, so if a person near the opening covering material has an object or hand in the opening that the opening covering material is about to close, for example, they should remove it. Can be done. (Problem to be Solved by the Invention) However, since the opening covering material is opened and closed only while operating the operating switch, the operator (e.g., a vehicle occupant) has to try again to fully open the opening. When the opening cover is closed, the opening cover is driven toward full closure, but the operator must continue to close the first contact of the operation switch 32f (switch operation) to prevent objects or people from getting caught. The safety of closing movement must be confirmed. If you neglect this, even if something gets caught, the operating switch 32f
Unless the operation is released, the closing movement of the opening covering material will not stop, resulting in a pinching accident.
In addition, the above-mentioned temporary stop circuit is composed of relays and manual switches, and electric contacts are inserted in two or three stages between the aperture covering material drive motor and the power supply, and many relays with large contact capacities are used. and requires a manual switch. Japanese Unexamined Patent Publication No. 56-66188 discloses an opening/closing drive circuit including an opening/closing changeover switch and an overload detection/stop circuit. According to this, when only an object or a human body is caught, the driving load of the opening covering material increases, the overload detection and stop circuit is activated, and the driving of the opening covering material is automatically stopped. Therefore, if an object or a human body is caught in the opening while the opening covering material is being driven to close, the opening covering material will automatically stop, resulting in high safety. but,
Since the opening/closing of the opening covering material is performed only while operating the operating switch, the operator (for example, a vehicle occupant) must keep the switch closed to the opening drive side in order to fully open the opening. In order to fully close it, it must continue to close on the closing drive side,
There is a problem in that the operability of opening and closing is low, and attention is taken away from this operation, especially when on a vehicle. Japanese Utility Model Application Publication No. 58-76421 discloses a drive device that activates an alarm when a rain detector detects rain and then drives the opening covering member to close after a certain period of time. According to this, when the opening covering material is driven to close in conjunction with rain, an alarm is issued immediately before that happens, so people around the opening covering material are alerted, and the opening covering material is driven to close. Measures can be taken to prevent objects from getting caught in the opening. The present invention improves the operability of the operator to fully open and close the opening, and also reduces the possibility of objects getting caught in the opening due to the closing drive of the opening covering material, and also reduces the possibility of objects being caught in the opening, the opening covering material, and the driving of the opening covering material. The purpose is to prevent damage to mechanisms, etc. [Structure of the Invention] (Means for Solving the Problems) The automatic opening/closing device for an opening covering material of the present invention includes an electric motor 11 and an opening/closing mechanism that opens and closes the opening covering material 23 in accordance with forward and reverse rotation of the electric motor 11. Electric drive mechanism provided: a disk-shaped switch actuation cam 2 that is coupled to the electric drive mechanism, rotates in conjunction with the rotation of the electric motor 11, and has two stages of concavities and convexities for switch actuation on its circumferential surface.
0, and a first one disposed opposite to one of the protrusions and recesses for operating the switch and driven to open and close by the protrusions and recesses.
A second switch 200b is arranged opposite to the other unevenness and driven to open and close by the unevenness, and the open and close signals of these switches generate signals indicating the open and close modes of multiple sections. Means 20, 200a, 200b; Means 240, 26 for detecting the load of the opening/closing mechanism
0,270; Reference value setting means 320 for setting an overload reference value
~360; Means 370 for detecting overload by comparing the load of the opening/closing mechanism with a reference value; Motor drivers 230, 250 for energizing the electric motor 11 in forward and reverse directions; Electrical signals for instructing opening and closing of the opening covering material 23 open/close instruction switch means SWO, SWC that generate; alarm means 390; alarm driver 38 that energizes the alarm means 390
0; and, in response to the generation of the electrical signal SWO on which instructs opening, even if the electrical signal SWO on disappears, the motor drivers 230 and 250 are instructed to open the opening covering material 23, and when an overload is detected. Motor driver 23
0,250 to stop and in response to the occurrence of the electric signal SWC on which instructs to close, the electric signal SWC
Even if the on state disappears, the motor drivers 230, 25
0 to close the opening covering member 23, and in response to the mode switching a predetermined opening degree before fully closed, the motor driver temporarily stops the electric motor by referring to the signals from the signal generating means 20, 200a, and 200b. 23
0,250 and the alarm driver 380
After that, the motor driver 230, 2
The opening/closing control means 110 instructs the opening cover member 50 to close the opening covering material 23 and instructs the motor drivers 230 and 250 to stop when an overload is detected. Note that symbols inside brackets indicate corresponding elements in the embodiments shown in the drawings and described later. (Function) The opening/closing control means 110 generates an electric signal instructing opening.
Even if the electric signal SWO-on disappears in response to the occurrence of SWO-on, the motor drivers 230, 250
Since the operator instructs the opening drive of the opening covering material 23 to open and instructs the motor drivers 230 and 250 to stop when an overload is detected, the operator can operate the opening/closing instruction switch means.
A single touch operation to command the opening of SWO and SWC automatically drives the opening cover fully open, and the operator does not need to continue commanding the opening until it is fully opened. Similarly, even if the opening/closing control means 110 responds to the generation of the electrical signal SWC ON instructing closing and the electrical signal SWC ON disappears, the motor driver 23
Since the motor drivers 230 and 250 are instructed to close the opening covering material 23 at 0 and 250, and the motor drivers 230 and 250 are instructed to stop when an overload is detected, the operator only needs to operate the open/close instruction switch means SWO and SWC with a single touch to instruct the close. The opening covering material is automatically driven to fully close, and the operator does not need to continue instructing the opening until it is fully closed. Therefore, the operator's ease of operating the switch for fully opening and closing the opening covering material is improved, and caution is required when fully opening and closing the opening covering material and when continuing to operate the opening and closing instruction switch means SWO and SWC. For example, if you are in a car, you can concentrate on driving the vehicle. Furthermore, during the fully closed drive, the opening/closing control means 110
Referring to the signals of the signal generating means 20, 200a, 200b, in response to the mode switching a predetermined opening degree before fully closed, the motor driver 230, 250 is instructed to temporarily stop the electric motor, and an alarm is issued to the alarm driver 380. Then the motor driver 23
Since the motor drivers 230 and 250 are instructed to drive the opening covering material 23 to close when an overload is detected, the closing movement of the opening covering material is temporarily stopped when the remaining opening is at a predetermined opening degree. and alarm means 39
0 raises the alarm. Therefore, the predetermined opening degree is
If the opening is less than this, there is a risk that an obstruction may interfere with the fully closing operation, and even if such an obstruction occurs, the opening must be set to a degree that can be easily removed, so that the operator etc. will be alerted by an alarm. You can be alerted to check the area around the opening and remove anything that might obstruct the closing slide, and even if it is not obstructing the closing slide, you can alert people near the opening covering material when you stop temporarily. Therefore, care must be taken not to interfere with the closing slide, which also prevents interference with the closing slide. Furthermore, in both the fully open drive and fully closed drive described above, if the drive load on the opening covering material becomes excessive, the drive will automatically stop, so if the opening covering material gets stuck or something gets caught in the opening, the drive will automatically stop. The drive automatically stops, and even if the drive is fully opened or fully closed in response to a one-touch operation as described above, the safety of objects around the opening, the opening covering material, or the drive mechanism is sufficiently ensured. Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings. (Embodiment) FIG. 1 shows an outline of an electric drive mechanism according to an embodiment of the present invention. In this embodiment, an opening 22 of a roof 21 of an automobile is used.
This is to drive and control the roof panel 23 that opens and closes. An opening 22 is formed in a roof 21 of an automobile, and this opening 22 is slid open/closed and tilted open/closed by a roof panel 23. Panel 23 is actuated by drive cables 24,25. The sunroof panel 23 is fixed to brackets placed on both sides of the opening 22 (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 this elongated hole 27a. 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 the plate 33, and the slot 36 has a horizontal portion provided on the front side 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 37 is installed at the front end of the plate 33. The link 39 has a roller pin 40 at its front end and a rear shoe 41 at its rear end, and is rotatably connected to the link 39. The link 39 is formed in an arc shape centered on the front end of the guide rod 36 which can be engaged with the tilt pin 37 at its upper end. It has a notched groove 42 and a guide pin 43. The guide pin 43 is engaged and guided in the guide slot 36. The unfinished ends of the drive cables 24, 25 are connected to a 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 link 39, the guide pin 43 of the guide link 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 44 outside the vehicle of the guide rail 44
In b, the engagement pin 38 is engaged and guided by a space 38a between the engagement pins 38. Furthermore, as shown in FIGS. 4 and 6, a block 45 is fixedly disposed within the guide rail 44, and a head 40b of a roller pin 40 provided on the guide link 39 is guided on the interior side of the block 45. An inclined groove 46 for guiding the head 38b of the engagement pin 38 fixed to the bracket 26 is formed on the outside of the vehicle interior. 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 disposed. Therefore, as the guide link 39 moves forward, the engagement pin 38 and the roller pin 40 move into the inclined grooves 46 and 4, respectively.
7 and can be lifted up and removed from the rail groove 44b or 44a of the guide rail 44 one after another. Furthermore, a rectangular opening 5 is provided at the upper end of the block 45.
Flanges 50 and 50b having 0a are formed (FIG. 4). A stopper 52 disposed on the other end side of a leaf spring 51 whose one end is fixed to the front guide 28 is engaged with the opening 50a when the panel 23 is closed and tilted open. As a result, movement of the front guide 28 toward the front of the vehicle is stopped. In addition, when the movable panel 23 is slid open,
The tip 51a of the leaf spring 51 is pressed by the lower end 26a of the bracket 26, and is slidable within the guide rail 44. Therefore, as the engaging pin 38 moves up the inclined groove 47 of the block 45, the lower end 26 of the bracket 26
The leaf spring 51, which had been pressed by the block 45, 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 always slides together with the roof panel 23, and can completely catch raindrops from the rear edge of the panel 23 (see FIGS. 1, 4, and 7). To explain the operation of the mechanism described above, the panel 23 normally closes the opening 22 as shown in FIG. When the drive cable 25 is actuated to move the rear shoe 41 toward the rear of the vehicle (to the right in FIG. 5), the guide link 39 also moves backward. The guide pin 43 is engaged and guided from the horizontal part to the inclined part of the guide slot 36 of the plate 33, and
3, the panel 23 is pulled rearward via the bracket 26 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, when fully closed, the pin 31 is lowered slightly below the pin 32 as shown in FIGS. 2 and 5, but as it descends, the front link 30 is lowered as shown in FIGS. 3 and 8. It becomes horizontal and can therefore be accommodated in the rear lower part of the roof 21 of an automobile, and the opening 22 is opened by sliding the panel 23. On the other hand, when the rear shoe 41 is moved forward by driving the drive cable 25 from the position shown in FIG. The guide link 39 rotates and rises while moving forward (see FIG. 9). As a result, the notch groove 42 of the guide link 39 engages with the tilt pin 37 implanted in the plate 33. When the rear shoe 41 moves further forward, the guide link 39 rotates upward while moving forward, causing the rear edge of the panel 23 to rotate upward and stand up, opening the opening 22 (see FIG. 10). Moreover, all the operations of the panel 23 are performed by the bracket 2.
6, after the panel 23 is assembled to the roof 21 of the automobile, the bracket 2
6 is in the fully closed position shown in FIG. 5, the panel 23 is fitted into the opening 22 with its weather strip bent, and then assembled and fixed to the bracket 26. As mentioned above, the fully closed state (Fig. 5 and 11
View 45 from the rear of the vehicle (right side in the drawing)
When the panel 23 is slid downward, the panel 23 slides open (FIG. 11c), and then slides further to fully open (FIG. 11d). When the shoe 45 is driven toward the front of the vehicle (to the left in the drawing) from the fully slid state of the panel 23, 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 its front edge closes the opening 22. When the shoe 45 is further driven forward of the vehicle (to the left in the drawing) from this fully closed state, the rear end of the panel 23 rises and is tilted open (FIGS. 9, 10, and 11a). That is, the tilt is fully open (Fig. 10 and 11a)
When the shoe 45 is driven toward the rear of the vehicle (to the right in the drawing), the panel 23 first tilts closed to completely close the opening 22 (fully closed: Fig. 11b), then slides open and then slides. Fully open (11th d
Figure). On the other hand, if the slide is fully open, the
When the vehicle is driven forward, the panel 23 is fully closed, and furthermore, the rear end of the panel 23 is erected and tilted fully open. In this way, by simply sliding the shoe 45 backward and forward, the panel 23
changes the state from tilt fully open - tilt partially open - fully closed - slide partially open - slide fully open, and vice versa, changes the state from slide fully open - slide partially open - fully closed - tilt partially open - tilt fully open. The cables 24 and 25 that drive each of the shoes 45 on the side of the vehicle are connected to a cable drive mechanism that mainly includes a reducer 9 and a motor 11. and 25 are driven forward and backward in opposite directions by the reducer 9 section. FIG. 12a shows a plan view of the cable drive mechanism, and FIG. 12b shows a sectional view. 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 coupled to the gear 14 ₂ via a friction clutch 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, and the planetary gear 201 rotates between the housing internal teeth 2.
10 and rotate differentially, the pin 202 moves, and the cam 20 is rotated by being pushed by this pin 202. 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 the limit switch 200b is arranged in the upper part of the circumferential surface, and the limit switch 200a is arranged in the lower part of the circumferential part, facing each other. In this embodiment, the states of the panel 23 are roughly shown as a slide open state (mode), a slide closed state (mode) from just before the slide is fully closed to fully closed, and a tilted closed state (mode) from the completion of tilt down to fully closed. ,and,
Four states (tilt open state (mode)) are detected, and the panel opening/closing control mode is specified in each state. More specifically, there are two switches 200a and 200b for opening detection, and the combination of opening and closing of these switches roughly represents only four states. In addition, a groove 20c is formed, and the groove 20c allows the switch 200a to be opened with the panel 23 opening approximately 10 cm toward the slide open side from the fully closed position. The mode in which the switch 200a is opened at the groove 20c (temporary stop instruction state: mode B) is in the above-mentioned mode section. 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, (B) is a temporary stop instruction mode. The cam 20 rotates counterclockwise in FIG. 14 by urging 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 completes tilt down, fully closed, position just before fully closed, fully closed 10
cm, and as the limit switches 200a and 2 are driven fully open, as shown in FIG.
00b is opened and closed. The cam 20 is rotated 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. 11d), and the panel 23 is fully closed by 10 cm. As shown in FIG. 14, the limit switch 200 is moved to the forward, fully closed position, fully closed, tilt down completed, and tilt up completed.
a and 200b are opened and closed. This example detects overload (particularly when a human body is caught) and stops the motor in the event of an overload.
The temporary stop before cm for safety is when the panel 23 is in the mode and when the panel 23 is slid from the fully open side to the fully closed side. 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 relay contact piece 231 of the motor driver 230, 250.
The other end is connected to the power supply voltage +12V or the shear sea earth via a load detection resistor 240 and a relay contact 232. Relay contacts 231 and 232 that make this connection are driven by relay coils 232 and 234, respectively. In this embodiment, a resistor 240 is used as a means for detecting the load. 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 0 ₀ and 0 ₇ 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 the shear/shear 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
- Current flows through the path of - motor 11 - resistor 240 - contact piece 232, and the motor 11 reverses, causing the panel 23
closes. 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 operational amplifier at the subsequent stage by cutting the input voltage to Vc+Vr (Vr is the forward voltage drop of the diode) and the input voltage lower than the ground potential to -Vr. Amplification circuit 270 amplifies the output of filter circuit 260 to a required level. This amplifier circuit 270
The output Vs will be treated as the load detection voltage from now on. The addition circuit 320 adds a voltage at an allowable value level to the load detection voltage. The added voltage is adjusted and set by a variable resistor 324. Delay circuit 330 provides a delay to the addition output.
In order to reduce the sensitivity difference between the rise and fall of the addition output, a diode 333 is connected to the capacitor 332 so that a delay is applied only at the rise and no delay is applied at the fall.
In order to correct the forward voltage drop of 3, the diode 333 is idealized in the operational amplifier 331. The memory circuit 340 has a load detection voltage Vs and a constant voltage.
The difference Vcc-Vs from Vcc is divided by resistors 345 and 346 and applied to the storage capacitor 341. When the panel 23 is closed, the transistor 343 is turned off for a predetermined time ts from the start of the closing drive, the transistor 342 is turned on, and the capacitor 3
A voltage obtained by dividing Vcc-Vs by resistors 345 and 346 is applied to 41, and after a predetermined time, transistor 343 is turned on and transistor 342 is turned off, and a constant voltage Vcc is applied to the cathode of diode 344 through resistor 349 and diode 348. diode 344 becomes reverse biased and cuts off, and just before that, resistors 345 and 346 connect Vcc-
A voltage obtained by dividing Vs is held in the capacitor 341. In this embodiment, the full opening of the slide and the completion of the tilt-up are detected when the load current of the motor 11 increases excessively, and the detection reference value at this time is set by the resistors 351 and 352 and the transistor 350. That's what I do. When the mode is open direction drive (motor forward rotation bias),
During tilt-up drive (motor reverse energization) in mode and mode, transistor 350 is turned off, and resistor 3
A voltage corresponding to Vs, which is higher than the voltage obtained by dividing Vcc-Vs by 45 and 346, is applied to the capacitor 341. Note that transistors 343 and 3
A microprocessor 110 controls turning on and off 50 . Delay detection level check circuit 360 compares the delayed output of delay circuit 330 and the storage output of storage circuit 340, and outputs the lower voltage. The delayed output is applied to the inverting input terminal of the operational amplifier 361, and the storage output is applied to the non-inverting input terminal. When the storage output is higher than the delayed output, the amplifier 361 output is positive and it is connected to the diode 362.
It is cut with. The delayed output is then given to the comparator 370 at the subsequent stage. When the storage output is lower than the delayed output, the output of amplifier 361 is negative;
The delayed output is passed through diode 362 to amplifier 36.
1 output, and the delayed output drops to the storage voltage level. The voltage at the anode of the diode 362 (the lower of the storage voltage and the delay voltage) is the overload reference voltage Vmd, and is applied to the comparator 370 at the subsequent stage. The comparator 370 compares the output of the delay detection level check circuit 360, that is, the overload reference voltage Vmd, and the detected load voltage Vs, so that the latter Vs is higher than the former Vmd.
The microprocessor 1 sends a low-level "0" signal that indicates normality when the latter Vs is lower than Vmd, and a high-level "1" signal that indicates an abnormality when the latter Vs is higher than the former Vmd.
Output to 10. 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.

【table】

〔Effect of the invention〕

Operator open/close instruction switch means SWO,
A single touch operation to instruct the SWC to open will automatically drive the opening cover fully open, and the operator does not need to continue instructing it to open until it is fully opened. Similarly, when the operator operates the open/close instruction switch means SWO, SWC with one touch to instruct close, the opening cover is automatically driven to fully close, and the operator continues to instruct close until it is fully closed. There's no need. Therefore, the operator's ease of operating the switch for fully opening and closing the opening covering material is improved, and caution is required when fully opening and closing the opening covering material and when continuing to operate the opening and closing instruction switch means SWO and SWC. For example, if you are in a car, you can concentrate on driving the vehicle. Furthermore, during the fully closed drive, the opening/closing control means 110
Referring to the signals of the signal generating means 20, 200a, 200b, in response to mode switching a predetermined opening degree before fully closed, instructs the motor drivers 230, 250 to temporarily stop the electric motor, and instructs the alarm driver to issue an alarm. Then the motor driver 230,2
50 to close the opening covering material 23, and also instructs the motor drivers 230, 250 to stop when an overload is detected, so when the remaining opening is at a predetermined opening degree, the closing movement of the opening covering material is temporarily stopped and an alarm is generated. Emitted. Therefore, the predetermined opening degree should be such that if the opening degree is less than this, there is a risk that an obstruction will interfere with the fully closing operation, and even if such an obstruction occurs, it can be easily removed. By doing so, it is possible to remove objects that obstruct the closing slide, and even if the closing slide is not obstructed, the attention of objects near the opening covering material will be directed toward that object when the vehicle is temporarily stopped. , then care must be taken not to obstruct the closing slide, which also prevents the closing slide from being obstructed. Furthermore, in both the fully open drive and fully closed drive described above, if the drive load on the opening covering material becomes excessive, the drive will automatically stop, so if the opening covering material gets stuck or something gets caught in the opening, the drive will automatically stop. The drive automatically stops, and even if the drive is fully opened or fully closed in response to a one-touch operation as described above, the safety of objects around the opening, the opening covering material, or the drive mechanism is sufficiently ensured.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an outline of the opening/closing mechanism of 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. FIG. 4 is an enlarged side view showing a mechanism for supporting the rear part of the panel 23. FIG. 5 corresponds to the cross section taken along the line - in FIG. 1, and is a sectional view showing a state in which the panel is fully closed. FIG. 6 is a sectional view taken along the line -- in FIG. 4. FIG. 7 corresponds to the cross section taken along the line - in FIG. 1, but is a cross-sectional view showing a state in which the panel is slightly lowered to slide open. FIG. 8 corresponds to the cross section taken along the line - in FIG. 1, but 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 the line -- in FIG. 1, showing a state in which the panel is slightly tilted up. FIG. 10 corresponds to the cross section taken along the line - in FIG. 1, and is a sectional view showing a state in which the panel is completely tilted up. 11th
Figure a is a side view schematically showing a state in which the panel has completed tilting up, Figure 11b is a schematic side view showing the panel in a fully closed state, and Figure 11c is a schematic side view showing the state in which the panel is lowered and slides open. Figure, 1st
Figure 1d is a schematic side view when the panel is fully slid open. FIG. 12a is an enlarged plan view of the cable drive mechanism, partially cut away. 12th
Figure b is a sectional view taken along the line XIIB-XIIB of Figure 12a, and Figure 13.
The figure is an exploded perspective view of the rotating shaft 15 shown in Figure 12b. FIG. 14 shows the cam 20 and limit switches 200a, 20 shown in FIGS. 12a and 12b.
0b, the relative relationship in the panel open and closed states, the rotation of the cam 20, and the limit switch 200
It is an explanatory view showing opening and closing of a and 200b. FIG. 15 shows limit switches 200a and 200b.
FIG. 4 is a circuit diagram showing an electric circuit that energizes a panel opening/closing drive motor in response to an operation mode signal corresponding to opening or closing of the panel or in response to operation of an open/close instruction switch. Figures 16a to 16i are flowcharts showing the control operation of the microprocessor 110 of the electrical circuit. Code of mechanical element: 9: Reducer, 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 cover material), 24, 25: drive cable, 26: bracket, 28: front guide, 29: front shoe, 36: guide slot, 39: guide link, 41: rear shoe, 43: guide pin, 4
4: Guide rail, 45: Block, 47: Inclined groove, 52: Stopper piece, 201: Planetary gear, 2
10: Casing internal tooth, 202: Pin, 200
a, 200b: Limit switch (signal generation means), code of electric circuit element, 110: Microprocessor (open/close control means), 231, 232:
Relay contact piece, 233, 234: Relay coil, 2
40: Resistor (means for detecting load), 230,
250: Motor driver, SWMO, SWO,
SWMC, SWC, SWD, SWU: Open/close instruction switch, 260: Filter circuit, 270: Amplifier circuit, 290: Power-on reset circuit, 310:
constant voltage circuit, 320: addition circuit, 330: delay circuit, 340: memory circuit, 360: delay detection level check circuit, 370: comparator, 380: buzzer driver (alarm driver), 390: buzzer (alarm means).

Claims (1)

[Scope of Claims] 1. An electric drive mechanism including an electric motor and an opening/closing mechanism that opens and closes an aperture cover according to the forward and reverse rotation of the electric motor; , a disk-shaped switch actuation cam having two stages of concavities and convexities for switch actuation on its circumferential surface, and a first switch actuation cam disposed opposite to one of the concavities and convexities for switch actuation and driven to open and close by the concavities and convexities. and a second switch disposed opposite to the other unevenness and driven to open and close by the unevenness, and signal generating means for indicating the open and closed position modes of the plurality of sections by the open and close signals of these switches. ; Means for detecting the load on the opening/closing mechanism; Reference value setting means for setting an overload reference value; Means for detecting overload by comparing the load on the opening/closing mechanism with a reference value; Motor driver for energizing the electric motor in forward and reverse directions. an open/close instruction switch means that generates an electric signal instructing the opening or closing of the opening covering material; an alarm means; an alarm driver that energizes the alarm means; Even if the electrical signal disappears, it instructs the motor driver to open the aperture cover, instructs the motor driver to stop when an overload is detected, and in response to the generation of the electrical signal instructing it to close, the electrical signal disappears. the motor driver to drive the opening cover to close, and in response to a mode change a predetermined opening degree before fully closed, the motor driver temporarily stops the electric motor by referring to the signal from the signal generating means. An automatic opening/closing device for an opening covering material, comprising: an opening/closing control means for instructing an alarm driver to issue an alarm, and then instructing a motor driver to close the opening covering material, and instructing the motor driver to stop when an overload is detected. . 2. The electric drive mechanism is an automatic opening/closing mechanism for opening/closing the opening/closing material according to claim 1, which includes an electric motor and an opening/closing mechanism for tilting/closing/sliding the opening/closing mechanism according to the forward/reverse rotation of the electric motor. Switchgear. 3. The opening/closing control means instructs the motor driver to close the opening covering material after the temporary stop and also instructs the alarm driver to issue an alarm.
Automatic opening/closing device for opening covering material as described in Section 1. 4. The opening/closing control means gives an alarm instruction intermittently at a relatively long period during a temporary stop, and gives an alarm instruction intermittently at a relatively short period when the opening covering material is subsequently closed. An automatic opening/closing device for an opening covering material according to claim 3. 5. The automatic opening/closing device for an opening covering material according to claim 3 or 4, wherein the opening/closing control means instructs an alarm driver to issue an alarm when an overload is detected and the motor is stopped.