JPH08189272A - Motor-driven door device of vehicle - Google Patents

Abstract

PURPOSE: To relieve the colliding force of a vehicle door as much as possible by opening and closing the motor-driven door in such a way that the elevating/ sinking speed is decreased gradually from the position near to the full open or full close. CONSTITUTION: An incremental speed control is performed remotely from an MPU provided in a control board, and the effective voltage of the drive voltage to be supplied to a switch is increased in steps in conformity to control signals. The rotational speed is changed mildly from a low level to the specified high level, and the rising speed of the door 4 is held at a specified value in the middle area of the opening 3 leading to the rising deceleration point. Then a subtraction process for the pulse count value CP in MPU is performed, and CP=CP1 is attained when the undermost part of the door 4 has reached the rising deceleration point, and the effective voltage to be supplied to the switch is decreased in steps, and the door 4 is turned over into a slow rising motion while the rotational speed of the switch is held for a certain period of time. At the same time, the rotating drive of the switch is stopped, and the opening 3 is opened fully. This permits shortening of the working time and enhancing of the working efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric open / close door of an enclosed storage such as an aluminum van provided on a bed of a moving vehicle, and particularly when the open / close door is maintained at a high speed ascending / descending operation, it is fully opened or fully closed. The present invention relates to an electric door opening / closing device for a moving vehicle that can reduce the contact force of the door opening / closing that occurs as often as possible.

[0002]

2. Description of the Related Art Conventionally, in a moving vehicle in which a closed storage such as an aluminum van is provided on a cargo bed, an opening is formed at the rear or side of the closed storage, and the opening extends from both sides of the opening to the ceiling. Curved guide rails are installed alongside, an opening / closing door is interposed between the guide rails, and the lowermost panel of the opening / closing door is hung up and down freely in an endless chain with the upper part of the storage part as a folding fulcrum. Further, there is known an electric door device that is configured to open and close an opening by an open / close door that winds and rewinds an endless chain by driving a drive motor to rotate forward and backward to move up and down.

However, in the above-mentioned structure, the drive motor is rotated and stopped by the simple switching operation of simply turning ON / OFF the constant DC power supplied from the battery mounted on the mobile vehicle, and the opening / closing door is moved up and down. When the bottom of the open / close door reaches the fully open position or the fully closed position, the contact force becomes large, and the lifting / closing operation is repeated by repeating the lifting / lowering operation of the drive motor and the open / close door. There is a concern that not only the durability of the peripheral mechanism related to the vehicle will be significantly deteriorated, but also the noise generated when moving up and down will have an adverse effect on the environment in the vicinity of the moving vehicle. If it is set low, the contact force at the fully open and fully closed positions can be eased and noise to the neighborhood can be suppressed, but the work time required to raise and lower the door will inevitably become long and work efficiency will increase. In particular, in the open / close doors installed in refrigeration vehicles, the contradictory drawbacks are that the lift time required for full opening or closing is long and forced to flow cold air to the outside, resulting in a decrease in refrigerating capacity. It was something that was included.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation and was devised in order to eliminate the conventional drawbacks. The object of the present invention is to perform a high-speed lifting operation of an opening / closing door. It is an object of the present invention to provide an electric door opening / closing device for a moving vehicle, which can maintain the contact force of the door opening / closing at the time of fully opening or fully closing as much as possible.

[0005]

In order to solve the problems, the technical means adopted by the present invention is to provide a balance shutter type opening / closing door at the opening of a hermetically sealed storage body formed at the rear of the driver's seat. Alternatively, the electric opening / closing door device of a moving vehicle is configured to open / close the opening / closing door by a DC switch by a switching operation of a control switch provided in a remote control device, wherein the electric opening / closing door is fully closed or fully opened. It is characterized in that it is driven to be opened / closed via an elevating / lowering control means for gradually decelerating the ascending / descending speed from an ascending / descending position in the vicinity.

[0006]

Therefore, according to the present invention, it is possible to shorten the lifting time of the opening / closing door while reducing the noise and the contact force due to the lifting operation of the opening / closing door as much as possible, and to load the container in the sealed storage section. The loading can be done smoothly and efficiently.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail based on an embodiment shown in the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a box-shaped hermetically-sealed storage portion provided in the rear portion of the moving vehicle 2, and an opening 3 formed on the rear surface of the hermetically-sealed storage portion 1 includes:
A balance shutter type opening / closing door 4 is mounted so as to be able to move up and down.

That is, the opening / closing door 4 is constructed by vertically connecting a plurality of panels 4a, 4a ..., And guide rollers (not shown) are pivotally supported at both side ends of each panel 4a, 4a. At the same time, guide rails 5, 5 for guiding the guide rollers up and down are provided along the curved inner surface 6 of the opening 3 to the inner surface 7 of the ceiling with a curved portion 5a.

An endless chain (not shown) is suspended between the gear mechanism 8 mounted on the upper portion of the opening 3 and the DC switch 9 installed below the floor surface 1a of the hermetically sealed housing 1. The urging force of the coil ammunition 8b coaxially mounted on the rotary shaft 8a of the gear mechanism 8 and the weight of the opening / closing door 4 connecting the bottom panel 4a to the endless chain are balanced, Each of the panels 4 along the guide rails 5 and 5 is driven by the forward / backward drive force of the forward / reverse rotation drive by the switch 9.
The opening 3 is opened and closed by the ascending / descending operation of a, 4a.

On the other hand, the operation panel 10 of the moving vehicle 2 is provided with a control panel 11 for switching the opening / closing of the open / close door 4, and a control panel 12 installed on the inner surface 7 of the ceiling of the hermetically sealed storage section 1 is used. A switching control signal from the control panel 11 is sent to the switch 9 to control the rotational drive of the switch 9, and a remote control device 13 is provided near the opening 3. Control panel 1
A control similar to the control operation in 1 can be performed by an operator while visually confirming the opening / closing operation status of the opening 3.

Reference numeral 14 is a lever-operated origin switch for issuing an origin signal (reference control signal) when the uppermost panel 4a comes into contact with the fully open position (upper limit position) of the opening / closing door 4, and 15 is a moving vehicle. It is a battery which is shared with the electric system for traveling 2 and supplies DC power to the control panel 11.

Here, the control panel 11 and the control panel 12 are
The control operation of the remote control device 13 will be described.
3 and 4, 9a is an encoder unit that generates a pulse signal for each revolution of the switch 9, 16 is a control panel 12
Built-in MPU, 17 is a reference pulse generation unit, 18 is a lower limit setting unit that sets the fully closed position (lower limit position) of the door 4, 19 is a PWM (Pulse Width Modulation) drive control unit, 20 is a power MOS FET
A PWM drive unit composed of elements,
Is the pulse signal of the encoder unit 9a, the origin switch 14
The current position of the open / close door 4 is sequentially calculated from the origin signal of, the set value Cp3 of the lower limit setting unit 18 and the previously stored position constant Cp1 to detect that the open / close door 4 is moving up and down to a predetermined position. Or the stop switch 21 (21a) provided on the control panel 11 and the remote control device 13
The PWM drive control unit 19 receives the respective contact signals of the open / close switch 22 (22a) and the PWM drive unit 2
0 is driven to change the drive voltage applied to the switch 9 to control the opening / closing of the opening / closing door 4, stop and ascending / descending speed, and to control the lighting of the open LED 25 and the close LED 26. Reference numeral 24 is a power supply LED that is constantly turned on when the power switch 23 provided in the control panel 11 is turned on.

To detect the position of the door 4, the origin (pulse count value Cp
(0: zero count), the pulse signal of the encoder 9a is added when the opening / closing door 4 descends, and subtracted when the door 4 ascends to perform the addition / subtraction encoder control that detects the current position from the counted pulse count value Cp. There is. That is, referring to FIG. 4, the fully open position H of the opening 3 is described.
0 is the upper limit position and the pulse count value Cp is “0” (Cp0), and the fully closed position H3 is the lower limit position where the pulse count value Cp matches the pulse count value Cp3 of the lower limit setting unit 18. The set value Cp3 is set by the lower limit setting unit 18 according to the height of the overall height of the opening 3. H1 is an ascending / decelerating point located below the upper limit position (about 20 cm below in the embodiment), and the pulse count value Cp is the pulse count value Cp1.
And the pulse count value Cp1 is M in advance.
H2 is a constant value stored in PU16, and H2 is a position from the lower limit position to a position above the lower limit position (about 20 cm in the embodiment).
It is a descending deceleration point located at (upper), and the pulse count value Cp coincides with the pulse count value Cp2. The pulse count value Cp2 is the pulse count value Cp3 from the pulse count value Cp3 at the lower limit position. The calculated value obtained by the subtraction process is automatically set.

On the other hand, the opening / closing of the opening / closing door 4, the stop, and the control of the ascending / descending speed perform the basic control of the opening / closing operation and the stopping operation by turning ON / OFF the driving power to the opening / closing machine 9 and switching the polarity of the battery 15. When the opening / closing door 4 that is in a stopped state at the fully open or fully closed position is moved up and down, the duty ratio of the drive voltage applied to the switch 9 by the PWM control at the start thereof is changed from (e) in FIG. 6A and 6B are sequentially switched at predetermined time intervals in the order of FIG.
As shown in, by gradually increasing the effective value of the drive voltage supplied to the switch 9 in a stepwise manner, the rotational speed of the switch 9 is gradually increased from the stop of rotation to reach a predetermined high speed. Speed control is performed. Here, the opening / closing door 4 during the ascending operation
When the lowermost part of the drive reaches the ascending / decelerating point H1, or when the lowermost part of the door 4 reaches the descending / decelerating point H2 during the descending operation, the duty ratio of the drive voltage is shown in FIG.
From (d) to (d) are sequentially switched at predetermined time intervals,
As shown in FIGS. 6A and 6B, by gradually reducing the effective value of the drive voltage supplied to the switch 9 in steps, the rotational speed of the switch 9 is gradually reduced from a predetermined high speed rotation. The speed control is performed so as to reach the lowest speed, and further, the raising / lowering operation of the opening / closing door 4 is stopped after the lowest speed is maintained for a certain period until reaching the lower limit or the upper limit stop position.

When the opening / closing door 4 that is moving up and down is stopped halfway by a stop operation, the duty ratio of the drive voltage is changed to
By switching in sequence from (a) to (e) shown in FIG. 5 at predetermined time intervals, as shown by the broken line in FIG. 6 (a), the rotation speed of the switch 9 is gradually decelerated from high speed to stop. In the case where the opening / closing door 4 which is temporarily stopped on the way is resumed by the resuming operation, the duty ratio of the drive voltage is changed in the order from (e) to (a) shown in FIG. By sequentially switching at predetermined time intervals, FIG.
From the stop position shown by the broken line in (a), the rotation speed of the switch 9 is gradually increased to reach a predetermined high speed. In the control operations for opening / closing, stopping, and ascending / descending speed as described above, the priority of each control operation is stop> gradual deceleration>
The speed is gradually increased. For example, when a stop operation is performed in the middle of the speed-up control, the drive voltage that is speed-up controlled and is in the middle of step-up is as shown in FIG. Immediately, the deceleration control for gradually decreasing the voltage is switched to stop the lifting / lowering operation of the opening / closing door 4, and the driving voltage that is being speed-up controlled by the restart operation from the stop position and is in the middle of gradually increasing the voltage is shown in FIG. As shown in b), the drive voltage is controlled so as to be immediately switched to the step-down deceleration control even when the ascending / decelerating point H1 or the descending / decelerating point H2 is reached.
Reference numeral 27 is an emergency opening device installed in the closed type storage unit 1. When the control switch 27a is turned on, regardless of the control operation by the control panel 11 and the remote operation device 13, The opening / closing door 4 is driven to rise to open the opening 3.

Since the present invention is constructed as described above,
When opening the fully open / close door 4, the power switch 23
After turning on, the control panel 11 or the remote control device 1
When the open / close selector switch 22 (22a) of No. 3 is operated to the open side, MPU1 is applied to the open / close door 4 at the fully closed position H3.
The speed increasing control is gradually performed within 6, and a switching control signal sent from the MPU 16 causes a switching signal S, whose duty ratio is set to 60% to 90%, from the PWM drive control unit 19 to the PWM drive. Are sequentially transmitted to the PWM drive unit 20.
The effective voltage of the driving voltage supplied from the switch 9 to the switch 9 gradually increases and the rotational speed gradually changes from a low speed to a predetermined high speed, and in the intermediate area of the opening 3 reaching the ascending / decelerating point H1, the open / close door is opened. The ascending speed of 4 is maintained at a high predetermined speed.

Next, the subtraction process of the pulse count value Cp in the MPU 16 is continued, and when the lowermost portion 4'of the opening / closing door 4 reaches the ascending / decelerating point H1, the MPU 16 is reached.
The pulse count value Cp = Cp1 in the inside becomes, and the duty ratio of the switching signal S becomes 90% to 6 again.
The effective voltage of the drive voltage supplied from the PWM drive unit 20 to the switch 9 is gradually reduced to 0%, and the rotation speed of the switch 9 is changed to the duty shown in FIG. The minimum speed of 60% of the ratio is maintained for a certain period of time until the fully open stop position is reached, the opening / closing door 4 is switched to a gradual raising operation, and the uppermost panel 4a of the opening / closing door 4 is switched.
When comes into contact with the origin switch 14, the rotational drive of the switch 9 is stopped and the opening 3 is fully opened.

Further, when closing the fully open opening 3, the opening / closing door 4 descends in the reverse control operation sequence, and the time when the lowermost portion 4'of the opening / closing door 4 is landed, that is, the pulse count. When the value Cp = Cp3 is reached, the rotational drive of the switch 9 is stopped and the opening 3 is fully closed. Therefore, when the opening / closing of the opening / closing door 4 is started and ended, the ascending / descending speed of the opening / closing door 4 is gradually increased / decreased, and the ascending / descending speed is maintained at a high speed in the intermediate region, so that the opening / closing door 4 is stopped when the ascending / descending is stopped. Relaxing the contact force as much as possible, opening / closing device 9 and opening / closing door 4
It is possible to maintain the durability of the peripheral mechanism related to the ascending / descending operation, and it is possible to suppress the generation of noise during ascending / descending as much as possible.

Next, instead of the PWM drive control shown in the above embodiment, the switch 9 is controlled by switching control of a plurality of resistance elements.
An embodiment configured to increase / decrease the drive voltage supplied to will be described with reference to FIG. In the figure, 28
Is an analog switch in which four input / output switches are built in parallel, and the output side 28 of the analog switch 28 is
a, 28b, 28c and 28d are connected to emitter-grounded transistors Tr1, Tr2, Tr3 and Tr4 via buffers 29a, 29b, 29c and 29d, respectively.
Is connected to each of the bases of the transistors Tr1 to Tr4, and a relay RY1 controlled in response to a switching control signal based on pulse count values Cp1, Cp2, Cp1 'and Cp2', which will be described later, on the collector side of each of the transistors Tr1 to Tr4. RY2, RY
3 and RY4 are connected and their respective relay contacts ry1, r
It is designed such that y2, ry3 and ry4 are individually turned on / off.

Further, the input side of the analog switch 28 is all pulled up to the required control power source, and any of the four input / output switches is received in response to the switching control signal input to the 2-bit control terminals 30a and 30b. When the switch is turned on, the relay contacts ry1 to RY1 to RY4
One of ry4 is closed and any one of resistance elements R1, R1 ', R2 and R2' having different resistance values is connected in parallel to the reference resistance Rref.

On the other hand, in the MPU 16, the pulse count values Cp2 and Cp1 respectively corresponding to the descending deceleration point H2 and the ascending deceleration point H1 when the opening / closing door 4 is moved up and down, and the opening 3 are provided.
The pulse count value Cp0 (= zero count) at the fully open position H0 and the pulse count value Cp3 corresponding to the total height up to the fully closed position H3 are calculated, and the lowermost portion 4'of the opening / closing door 4 is When rising from the fully closed position to the fully open position, the pulse count value Cp that gradually changes due to the vertical movement of the opening / closing door 4 is as shown in FIG. When Cp2 <Cp <Cp3 with respect to the pulse count value Cp3, the switching control signals sent from the MPU 16 are sequentially input to the control terminals 30a and 30b of the analog switch 28, and four input signals in the analog switch 28 are input. The output switches are turned on sequentially, and each relay RY1 to RY4
Each time the relay contacts ry1 to ry4 of the above are closed one after another, the reference resistance Rref and each resistance element R1, R1 ', R2 and R2'
Each time, the parallel resistance value with any of the above is decreased, the voltage drop of the drive voltage Vm supplied to the switch 9 is reduced, and the rotation of the switch 9 is gradually increased from a low speed side to a high speed predetermined speed. Controlled by.

The pulse count value Cp0 (= zero count) at the fully open position
On the other hand, when Cp0 <Cp <Cp1, that is, when the raising operation of the opening / closing door 4 approaches the end, a switching control signal is sent from the MPU 16 to the analog switch 28 in the reverse order of the above, and the reference resistance is The parallel resistance value of Rref and any one of the resistance elements R1, R1 ', R2 and R2' increases each time, and the voltage drop of the drive voltage Vm supplied to the switch 9 increases, but the relay contacts ry3 to ry4. In the interval, the input interval of the switching control signal becomes large, as a result, the constant speed state of the lowest speed is maintained for a certain time, and the rotation of the switch 9 is gradually decelerated by a two-step change from the high speed side to the low speed side. Controlled by. Then, the control operation described above is similarly performed when the opening / closing door 4 is lowered from the fully open position to the fully closed position, as shown in FIG.

Furthermore, when the pulse count value Cp that gradually changes as the door 4 is moved up and down is Cp1 <Cp <Cp2 with respect to the pulse count values Cp1 and Cp2 at the rising and falling deceleration points, that is, the opening and closing door. The bottom 4'of 4 is the opening 3
When the opening / closing door 4 is stopped at an arbitrary position in the middle of the ascending / descending region, or when the ascending / descending operation is restarted from the stop position in the intermediate region, the above-described control operation is stopped and The restart voltage is reversibly controlled for each operation, and the amount of decrease in the drive voltage Vm supplied to the switch 9 increases and decreases. As shown by the broken line in FIG. It is controlled to gradually increase or decrease from low speed to high speed or from high speed to low speed.

Therefore, when the opening / closing of the opening / closing door 4 is started and ended, the ascending / descending speed of the opening / closing door 4 becomes low, and the ascending / descending speed is maintained at a high speed in the intermediate range, so that the opening / closing door at the time of stopping the ascending / descending of The impact force of 4 can be alleviated as much as possible, and the durability of the peripheral mechanism related to the lifting operation of the switch 9 and the opening / closing door 4 can be maintained, and the generation of noise during lifting can be suppressed as much as possible. can do. In the above embodiment, the configuration is shown in which the drive power supplied to the switch 9 is increased or decreased by switching connection of a plurality of resistance elements having different resistance values.
Without being limited to this, the resistance value may be gradually increased / decreased by a variable resistor.

[0025]

In summary, according to the present invention, a balance shutter type opening / closing door is provided in the opening of the hermetically sealed storage formed at the rear of the driver's seat, and the switching operation is performed by the control switch provided in the driver's seat or the remote control device. In the electric open / close door device for a moving vehicle configured to open / close the open / close door by a DC switch, the electric open / close door includes:
Since it is driven to open and close through the ascending / descending control means that gradually decelerates the ascending / descending speed from the ascending / descending position close to the fully closed or fully opened, the contact force of the opening / closing door generated at the fully opened or fully closed is maximized. It is possible to reduce the noise generated at the time of collision and to reduce the work time required to lift the open / close door to improve work efficiency, and maintain the high-speed lift operation of the open / close door. At the same time, it is possible to prevent the reduction of the refrigerating capacity due to the opening in the refrigerating car or the like. Since the electric opening / closing door is opened / closed via the sub-elevation control means for gradually increasing the speed from the fully open or fully closed position and maintaining a predetermined ascending / descending speed, a sudden driving state at the start of ascending / descending of the opening / closing door. It is possible to gradually shift to the ascending / descending drive state by eliminating the switching to, and it is possible to suppress a steep load on each mechanical member of the electric opening / closing apparatus and improve the durability. A balance shutter type opening / closing door is provided at the opening of the closed type housing formed at the rear of the driver's seat, and the opening / closing door is opened / closed by a DC switch by a switching operation by a control switch provided in the driver's seat or a remote control device. An electric door opening / closing device for a moving vehicle configured as described above, wherein an opening / closing device for opening / closing driving the electric door controls the driving rotational speed thereof by increasing / decreasing driving power supplied via pulse width modulation control. Since it is configured like this, it is possible to smoothly increase and decrease the ascending / descending speed of the ascending / descending opening / closing door, and it is possible to suppress the impact force due to the change of the ascending / descending speed as much as possible to ensure a smooth ascending / descending operation. can do. A balance shutter type opening / closing door is provided at the opening of the closed type housing formed at the rear of the driver's seat, and the opening / closing door is opened / closed by a DC switch by a switching operation by a control switch provided in the driver's seat or a remote control device. An electric door device for a moving vehicle configured as described above, wherein a switch that drives the electric door to open and close, by increasing or decreasing the drive power supplied via the switching connection of a plurality of resistance elements having different resistance values, Since it is configured to control the drive rotation speed, the structure for changing the drive power of the switch can be simplified, and the reliability of the entire device including the switch and the door can be improved. Even when adjusting the increase / decrease rate of the driving power, it is possible to deal with it very easily by simply replacing the resistance elements having different resistance values with a simple structure, and Flexibly and obtained corresponding to the weight of the severity of the door closing, it is possible to expand the application range of the door device. The elevating control means receives a position signal calculated in advance from the height of the opening of the hermetically sealed container to gradually reduce the rotation speed of the DC switch, and keeps the lowest speed range of the opening and closing door for a certain period of time until the elevator stops. Since it is configured to hold, it is possible to stabilize the landing of the open / close door to the stop position without giving unnecessary impact to the open / close door reaching the stop position, and to secure the position accuracy associated with the stop operation. be able to. In the ascending / descending intermediate range where the electric opening / closing door maintains a predetermined speed, the stop operation during the ascending / descending operation gradually decreases the ascending / descending speed to the stop position, and the ascending / descending operation from the stop position causes the ascending / descending speed to gradually increase to the predetermined speed. Since the control means is configured to drive the opening / closing door to open / close, it is possible to reduce the stop inertia force of the opening / closing door generated during the stop operation as much as possible even in the opening intermediate region in the middle of raising / lowering of the opening / closing door. When restarting the stopped door, it is possible to eliminate the sudden change to the up-and-down drive state and to move up and down gently, suppressing a sharp load on each mechanism member of the electric door device and durability. Can be improved. The electric opening / closing door prioritizes the gradual decrease control of the ascending / descending speed by the intermediate ascending / descending control means when a stop operation is performed during ascending / descending while the opening / closing door that is gradually increased in speed by the sub-elevation control means reaches a predetermined speed, Further, when the lowermost part of the opening / closing door which moves up and down at a constant speed reaches the height of the opening for receiving the position signal of the lifting control means, the lifting control means controls whether or not there is a gradual increase control by the intermediate lifting control means. Since the opening / closing control is given priority to the gradual decrease control of the ascending / descending speed, an appropriate opening / closing control operation is given to the opening / closing door that is moving up and down or stopped in the opening / closing area of the opening without causing any contradiction. Therefore, it is possible to perform a smooth lifting and lowering operation of the opening / closing door while ensuring safety and quietness. That is, it has an extremely useful new effect.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a mobile vehicle including a sealed storage unit.

FIG. 2 (a) is a partially omitted side sectional view of a closed storage part,
(B) is a rear sectional view of the above-mentioned closed type storage section.

FIG. 3 is a control circuit diagram that employs PWM drive control.

FIG. 4 is an operation explanatory view showing the relationship between the height position of the lowermost part of the opening / closing door and the pulse count value.

5 (a) to (d) are operation explanatory views showing changes in the duty ratio of a switching signal.

FIG. 6 (a) is a control explanatory diagram showing the vertical axis as the ascending / descending speed and the horizontal axis as the ascending / descending position of the opening / closing door, and FIG. 6 (b) shows the vertical axis as the ascending / descending speed and the abscissa as the descending moving position of the opening / closing door. It is a control explanatory view.

FIG. 7 (a) shows a case where a stop operation is performed during gradual acceleration from the fully closed position, and (b) shows gradual acceleration from the stopped position to Cp1.
And FIG.

FIG. 8 is a control circuit diagram showing an embodiment in which switching control of a plurality of resistance elements is adopted.

[Explanation of symbols]

 1 Sealed Storage Section 4 Opening / Closing Door 9 Opening / Closing Door 11 Control Panel 13 Remote Control Device 19 PWM Drive Control Section 20 PWM Drive Section H2 Falling Deceleration Point H1 Rising Deceleration Point R1 Resistive Element R1 ′ Resistive Element R2 Resistive Element R2 ′ Resistive Element

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[Procedure amendment]

[Submission date] April 27, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is an overall perspective view of a mobile vehicle including a sealed storage unit.

FIG. 2 (a) is a partially omitted side sectional view of a closed storage part,
(B) is a rear sectional view of the above-mentioned closed type storage section.

FIG. 3 is a control circuit diagram that employs PWM drive control.

FIG. 4 is an operation explanatory view showing the relationship between the height position of the lowermost part of the opening / closing door and the pulse count value.

5 (a) to 5 (e) are operation explanatory views showing changes in the duty ratio of a switching signal.

FIG. 6 (a) is a control explanatory diagram showing the vertical axis as the ascending / descending speed and the horizontal axis as the ascending / descending position of the opening / closing door, and FIG. 6 (b) shows the vertical axis as the ascending / descending speed and the abscissa as the descending moving position of the opening / closing door. It is a control explanatory view.

FIG. 7 (a) shows a case where a stop operation is performed during gradual acceleration from the fully closed position, and (b) shows gradual acceleration from the stopped position to Cp1.
And FIG.

FIG. 8 is a control circuit diagram showing an embodiment in which switching control of a plurality of resistance elements is adopted.

Claims (7)

[Claims] 1. A balance shutter type opening / closing door is provided at an opening of a hermetically sealed storage body formed at a rear portion of a driver's seat, and the opening / closing door is opened / closed by a switching operation by a control switch provided in a driver's seat or a remote control device. A door opening / closing device for a moving vehicle configured to be opened / closed by a machine, wherein the electric door opens / closes via an elevating control means for gradually decelerating the ascending / descending speed from an ascending / descending position close to the fully closed or fully opened. An electric door device for a moving vehicle, which is driven to open and close. 2. The electric opening / closing door is opened / closed by a sub-elevation control means for gradually increasing the speed from a fully open or fully closed position to maintain a predetermined ascending / descending speed.
The electric opening / closing device of the moving vehicle described. 3. A balance shutter type opening / closing door is provided at an opening of a hermetically sealed storage body formed at a rear portion of a driver's seat, and the opening / closing door is opened / closed by a direct operation by a control switch provided in a driver's seat or a remote control device. A door opening / closing device for a moving vehicle configured to be opened / closed by a machine, the opening / closing device driving the opening / closing of the electric opening / closing door by increasing / decreasing driving power supplied via pulse width modulation control. An electric door device for a moving vehicle, which is configured to control the number of revolutions. 4. A balance shutter type opening / closing door is provided at an opening of a hermetically sealed storage body formed at a rear portion of a driver's seat, and the opening / closing door is opened / closed by a direct operation by a control switch provided in a driver's seat or a remote control device. A door opening / closing device for a moving vehicle configured to open / close by a machine, the opening / closing device driving the opening / closing of the electric opening / closing door being driven through a switching connection of a plurality of resistance elements having different resistance values. An electric door device for a moving vehicle, which is configured to control a drive speed thereof by increasing or decreasing electric power. 5. The lifting control means receives a position signal calculated in advance from the height of the opening of the hermetically-sealed housing to gradually reduce the rotation speed of the DC switch, and the minimum opening / closing door to stop lifting. The electric door opening / closing apparatus for a moving vehicle according to claim 1, 2, 3, or 4, wherein the electric vehicle is configured to hold the speed range for a certain period of time. 6. In the middle of the ascending / descending region where the electric door is kept at a predetermined speed, the stopping operation during the ascending / descending operation gradually reduces the ascending / descending speed to the stop position, and the ascending / descending operation from the stop position causes the ascending / descending speed to reach the predetermined speed. The electric open / close device for a moving vehicle according to claim 1, 2, 3 or 4, wherein the open / close door is driven to be opened / closed by an intermediate lifting control means that gradually increases. 7. The motorized opening / closing door is gradually increased by the auxiliary lifting / lowering control means, and when the opening / closing door is stopped during lifting or lowering until reaching a predetermined speed, the lifting / lowering speed is gradually reduced by the intermediate lifting / lowering control means. When the lowermost part of the opening / closing door that gives priority to control and moves up and down at a constant speed reaches the height of the opening that receives the position signal of the elevating control means, regardless of whether or not there is a gradual increase control by the intermediate elevating control means. The electric door opening / closing device for a moving vehicle according to claim 1, 2, 3 or 4, wherein the opening / closing control is performed so as to prioritize the gradually decreasing control of the ascending / descending speed by the ascending / descending control means.