JPH0467461B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a drive control system for a vehicle ingress/egress device, and more specifically, a drive control system installed in a vehicle so that a physically disabled person using a wheelchair can ride and drive the vehicle while in the wheelchair. The present invention relates to a drive control system for a vehicle ingress/egress device.

BACKGROUND ART A conventional drive control system for a vehicle ingress/egress device is disclosed in Japanese Patent Application Laid-Open No. 58-54954.

However, according to the device shown in this publication,
The only mechanism disclosed is a structure in which the turning means is manually rotated, and if a person with a disability has to hold on to the vehicle body while rotating, it will cause extreme fatigue unless the person is physically strong, and in some cases, the vehicle may not be able to rotate properly. . In addition, since the wheelchair must be lifted up, it cannot be used unless the vehicle has a high ceiling.

OBJECT OF THE INVENTION Therefore, an object of the present invention is to provide a drive control system for a vehicle ingress/egress device that can be applied to cars whose ceilings are not particularly high and allows physically disabled persons to easily get on and off the vehicle independently and with less fatigue. do.

Structure of the Invention In order to achieve the above object, the present invention is provided in a lifter that supports a seat support base at the tip of an arm that is disposed on the floor of a vehicle and rotates and moves up and down between a position outside the vehicle and a position of the driver's seat. A horizontal cylinder and a vertical cylinder drive the arm in rotation and vertical movement, respectively, and a first cylinder, a second cylinder, a third cylinder, and a cylinder cylinder, each of which is energized and operated when the horizontal cylinder and the vertical cylinder are driven in two directions. 4 solenoid, a first switch means which is operated to energize the first solenoid when the arm is turned to the right, and a first switch means which is operated to energize the second solenoid when the arm is driven to the left. a second switch means for energizing the third solenoid when the arm moves upward; a third switch means for energizing the third solenoid when the arm moves downward; The seat is configured to include a fourth switch means and a fifth switch means provided on the seat support base for supplying power to each solenoid and each switch means before the arm is driven to rotate and move up and down. .

Example The present invention will be explained below based on the drawings.

1 to 8 are diagrams showing an embodiment of the present invention.

Figure 1 shows the vehicle lifting device of this example installed, and is shown in the service bulletin No. 464 (M10-1) published by Nissan Motor Co., Ltd. in August 1981, "Nissan Prairie M10 Series Vehicles". Introducing a car 1 based on a car. A lifter 4 on which a seat 3 is placed and moved between the outside of the vehicle and the driver's seat is disposed on a floor 2 at a position behind the driver's seat of an automobile 1 that does not have a particularly high ceiling. 5 is the base, FD is the rotating front door, SD is the rotating front door,
SD has front and rear sliding side doors.

2 to 4 show the structure of the lifter 4. FIG.

The lifter 4 has a support post 6 protruding from a base plate 5 fixed to the floor 2, and an arm support member 7 is pivotally attached to the support post 6 so as to be rotatable in the horizontal direction.
An arm 8, which is a parallel link, is attached to the arm support member 7 so as to be rotatable in the vertical direction. The horizontal rotation of the arm support member 7 is as follows:
This is done by a horizontal hydraulic cylinder 9 located on the floor 2. A cylinder portion 9a of the horizontal hydraulic cylinder 9 is pivotally connected to the floor 2 so as to be freely rotatable in the horizontal direction, and a cylinder rod 9b is connected to the arm support member 7. Further, vertical rotation of the arm 8 is performed by a vertical hydraulic cylinder 10 provided between the arm support member 7 and the arm 8.
The horizontal hydraulic cylinder 9 and the vertical hydraulic cylinder 10 are connected via pipes to a hydraulic pump (not shown) disposed on the floor 2 at the rear of the vehicle. Arm 8
An upper link rod 13 and a lower link rod 14 whose one ends are pivotally connected to the arm support member 7 so as to be rotatable in the vertical direction, respectively, and whose other ends are connected so that these link rods 13 and 14 are parallel to each other. and a boom 15 whose upper end is rotatably pivoted.

A rectangular frame-shaped seat support base 16 is attached substantially horizontally to the tip, ie, lower end, of the boom 15. A footrest 17 is attached to the seat support base 16 and is movable in the horizontal direction.

Further, a pair of seat pedestals 18, 18 extending in the longitudinal direction of the vehicle are protruded from the driver's seat position of the base 5 at a predetermined interval. A seat stopper plate 1 is mounted on the upper surface of the seat holder 18 on the center position side of the floor 2.
9 is erected, and an L-shaped sheet locking piece 20 is provided on the front end side of the upper surface of the sheet holder 18. Furthermore, pivot pieces 21 extend from the rear ends of the pair of seat holders 18, and a rod 23 having locking hooks 22 at both ends is rotatably mounted on these pivot pieces 21, 21. supported. rod 2
A cam 24 is attached to the center of the cam 2.
4 is connected to one end of a connecting rod 25, and the other end of the connecting rod 25 is connected to a seat lock operating lever 26 which is pivotably mounted on the front end side of the seat holder 18 so as to be rotatable in the vertical direction. There is. Then, by rotating the operating lever 26, the connecting rod 25
is moved back in the longitudinal direction of the vehicle, the cam 24 is rotated, the rod 23 is rotated, and the locking hook 22, which is integrated with the rod 23, is rotated up and down.
Reference numeral 27 denotes a turnover spring that acts to bias the operating lever 26 in the locking direction and the locking release direction. Reference numeral 50 denotes a magnetic proximity switch provided on the boom 15 of the arm 8, which operates when a magnet (not shown) provided at the rear of the seat 3 approaches, and detects that the seat 3 is placed on the seat support base 16. It is something to do. Further, a cover 52 that covers the magnetic proximity switch 50 is rotatably provided at the end of the seat support base 16 on the side of the boom 15 with a lower end 52b being pivotally supported. The cover 52 is locked to the stopper 52a of the boom 15, and the boom 1
A magnet 53 is provided which operates the magnetic proximity switch 50 when covered with the magnet 5. 54 is a switch box, and the switch box 54 has a vertical movement operation switch 55 that drives the arm 8 in the vertical direction.
and a swing operation switch 56 for swinging the arm 8 left and right. Both operation switches 55 and 56 are connected via a cord 57 to an electric control circuit which will be described later. Note that 17a is a stopper piece that prevents the footrest 17 from popping out, and 16a is a locking protrusion into which a positioning arm of the seat 3 is fitted.

FIGS. 5 and 6 show a wheelchair 30 used in combination with the vehicle ingress/egress device of this embodiment.

This wheelchair 30 consists of a seat support frame 31 and a seat 3 placed on the seat support frame 31. An axle 34 with operating rings 33 arranged in parallel is rotatably attached to both sides of the seat support frame 31, and armrests 35 located on both sides of the seat 3 and casters hanging downward are attached to both sides of the front end of the support frame 31. 36 are each removably attached. Further, a footrest 37 is removably attached to the front end of the seat support frame 31.

On the other hand, the seat 3 is composed of a seat back 38 and a seat cushion 41 having a slider 39 and a slider support frame 40 at the bottom.
Then, the slider support frame 40 is placed on the seat support frame 31 and fixed with the tightening screws 42 to assemble the wheelchair. Further, locking pins 43 are provided on both sides of the slider support frame 40 as shown in FIG. 1, and a U-shaped positioning arm 4 is provided at the rear end of the slider support frame 40.
4 are provided.

Next, FIG. 7 is a diagram for explaining a hydraulic circuit for driving the horizontal hydraulic cylinder 9 and the vertical hydraulic cylinder 10, which drive the above-mentioned arm 8 to rotate and move up and down, respectively. In the figure, 60 is a motor, and as described above, this motor 60 is arranged at the rear of the vehicle. This motor 60 is connected to a hydraulic pump 61.
The hydraulic pump 61 is driven to supply hydraulic pressure to the electromagnetic 4-port switching valve 62.
Due to the switching operation of this switching valve 62, the horizontal cylinder 9
can be driven in the left and right directions. Further, pressure oil is supplied from the hydraulic pump 61 to another electromagnetic four-port switching valve 63, and the vertical hydraulic cylinder 10 can be driven in the vertical direction by the switching operation of this switching valve 63. It's getting old. Further, each switching valve 62, 63 has a first and second solenoid 62a, 62b and a third and fourth solenoid 63a, 63, respectively.
b are provided, and these solenoids 62
a, 62b, 63a, and 63b can be operated by an electric control circuit to be described later. In addition,
In FIG. 7, 64 is a check valve, 65 is a pressure control valve, 66 and 67 are flow rate regulating valves provided on the side of the switching valve 62, and 68 and 69 are flow rate regulating valves provided on the side of another switching valve 63. It is.

Next, FIG. 8 shows each of the aforementioned solenoids 62a,
This is for explaining an electric control circuit for operating 62b, 63a, and 63b. In the figure, 70 is a battery as a power source, and voltage can be applied from the battery 70 to the motor 60 via a main switch 71.
Further, contacts LS ₁ and LS ₂ that constitute the magnetic proximity switch 50 described above are connected to the battery 70, and these contacts LS ₁ and LS ₂ are connected to the battery 70 when the seat 3 is placed at the normal position on the seat support base 16. , or when the cover 52 covers the boom 15. When the contacts LS ₁ and LS ₂ are closed, the relays 1CR and 2CR are energized to close the contacts 1SR and 2SR.

Further, TS1U and TS1D are two interlocking switches that constitute the above-mentioned operation switch 56, and the switch TS1U is operated when the arm 8 is upwardly moved to energize the solenoid 63a and turn on the motor relay.
While it is intended to supply electricity to the MR, the switch
TS1D is operated when the arm 8 is driven downward to energize the solenoid 63b and the motor relay MR. Furthermore, TS2R, TS
2L is a two-linked switch that constitutes the operation switch 55, and switch TS2R is operated when the arm 8 turns to the right to energize the solenoid 62a and the motor relay MR, while the switch TS2L is operated when the arm 8 turns to the left to energize the solenoid 62b and the motor relay MR. In addition, when the motor relay MR is energized, the motor 60
The contact SMR connected to the contact SMR can be closed.

Further, MS ₃ is a micro switch that is closed when the arm 8 turns 90 degrees to the right, that is, when the seat support base 16 turns 90 degrees toward the outside of the vehicle from the driver's seat position. Further, MS ₄ is a microswitch that is closed when the seat support 16 is in the driver's seat position, and MS ₅ is a microswitch that is opened when the seat support 16 is in the driver's seat position. Further, MS ₆ is a micro switch that is opened when the seat support base 16 lands outside the vehicle, and MS ₇ is a micro switch that is closed when the seat support base 16 moves upward and reaches the upper limit position. And MS ₈ is a micro switch that is closed when the seat support base 16 turns 90 degrees,
MS ₉ is a micro switch that is opened when the seat support base 16 turns 90 degrees, contrary to MS ₈ .
In addition, MS ₁₀ is a micro switch that operates in conjunction with MS ₅ , and MS ₁₁ is a micro switch that operates in conjunction with MS 5.
This is a micro switch that is opened when the robot returns to the rotating position.

On the other hand, TR is a delay relay that is activated when the seat support base 16 rotates 90 degrees.
This function is used to cancel operations caused by. Therefore, when the delay relay TR operates, the contact point TRS is opened for the set time and the relay 3CR is de-energized, so that the contact point 3SR is opened. In addition, relay 4CR is provided to self-hold the micro switch MS ₃ , and even if the seat support base 16 continues to turn to the right after turning 90 degrees from the driver's seat position to the outside of the vehicle. It functions so that the seat support base 16 can be moved up and down in the rotating position. Note that 4SR ₁ and 4SR ₂ are the contacts of relay 4CR, and 4SR ₁ is connected in parallel with micro switch MS ₄ to supply electricity to switches TS1U and TS1D, while 4SR ₂ is for self-holding. It is connected in parallel with the micro switch MS ₃ . Also, 72 is a control switch, 73
is a fuse.

In this way, switch TS2R uses solenoid 62
The switch TS2L is a first switch means for energizing the solenoid 62b, the switch TS1U is a third switch means for energizing the solenoid 63a, and the switch TS1D is a first switch means for energizing the solenoid 63a. is solenoid 6
The contacts LS ₁ and LS ₂ of the magnetic proximity switch 50 constitute a fifth switch means for supplying power.

Note that the micro switch MS ₃ is attached to the vicinity of the support post 6 so as to be vertically stacked together with the micro switches MS ₈ and MS ₉ . Further, the micro switch MS ₄ is attached to the rear side of the support post 6, and the micro switch MS ₅ is attached together with the micro switch MS ₁₀ at a position on the base 5 facing the seat support 16. Further, a micro switch MS ₆ is attached to the front side of the support post 6, and a micro switch MS ₇ is attached to the upper end of the arm support member 7.
Additionally, the micro switch MS ₁₁ is located on the base 5, and the seat support base 16 is located rightward from the driver's seat position.
It is installed in a position where it can be activated when turned more than 90 degrees. And the solenoids 62a, 62
b, 63a, and 63b are mounted on the base 5 near the horizontal hydraulic cylinder 9. Other circuit components, such as a delay relay TR, are housed in a control box (not shown) provided near the motor 60. In addition, each micro switch
The operation of MS ₃ to _{MS 11} can be performed by contacting the components of the lifter 4 or an operation pin (not shown) attached to them.

Next, the overall operation of the drive control system configured as described above will be explained, taking as an example the operation up to when a physically disabled person in the wheelchair 30 is seated in the driver's seat.

First, the physically disabled person in the wheelchair 30 opens the front door FD and sliding door DS, and then opens the wheelchair 30.
While riding the vehicle, place the switch box 54 within reach within the vehicle interior, and operate the vertical movement operation switch 55 so that the arm 8 rotates upward. At this time, it is assumed that the main switch 71 and the control switch 72 are both closed. Further, it is assumed that the cover 52 provided on the seat support base 16 covers the magnetic proximity switch 50 and the contacts LS ₁ and LS ₂ are closed, and the micro switch MS ₄ is connected to the seat support base 16 when the seat support base 16 is located at the driver's seat position. It has been closed due to its location. In this manner, when switch TS1U is closed by operating operation switch 55, solenoid 63a is energized and motor relay MR is operated to close contact SMR, thereby rotating motor 60. Therefore, the hydraulic pump 61 is driven, and the switching operation of the switching valve 63 causes the cylinder rod 10b of the vertical hydraulic cylinder 10 to move the arm 8 upward. Then, when the arm 8 moves up to a predetermined upper limit position, the operation of the operation switch 55 is stopped.
At the upper limit position of arm 8, the micro switch
MS ₇ closes.

Next, the turning operation switch 56 is operated so that the arm 8 is turned right from the driver's seat position to a position outside the vehicle. That is, since the micro switch MS ₉ is closed at the driver's seat position of the arm 8, when the switch TS2R is closed, the solenoid 62a is energized and the motor relay MR is operated to rotate the hydraulic pump 61, so that the horizontal hydraulic pressure is The cylinder rod 9b of the cylinder 9 drives the arm 8 to rotate to the right. Then, arm 8 moves to the right.
When turned 90 degrees, microswitch MS ₉ is opened and microswitches MS ₃ and MS ₈ are closed. Closing of microswitch MS ₈ activates delay relay TR to substantially open microswitch MS ₈ for a predetermined set time. In other words, even if the swing operation switch 56 is operated during this set time, the arm 8 will not swing. Then, when the set time has elapsed, the contact
TRS is closed, relay 3CR is activated, and contact 3SR
Close.

Next, if it is necessary to further turn the arm 8 to the right, the turning operation switch 56 is operated again to close the switch TS2R, and the arm 8 is stopped at a position rotated, for example, about 110 degrees from the driver's seat position.

In this way, the arm 8 or the seat support base 16
When the is moved to the outside position, press the vertical movement operation switch 55.
By operating the switch TS1D and closing the switch TS1D, the seat support base 16 is moved down and landed on the ground. That is, when switch TS1D is closed, solenoid 63b is energized and motor relay MR is operated to move cylinder rod 10b of vertical hydraulic cylinder 10 downward. At this time, since the arm 8 is turning more than 90 degrees to the right, the micro switch MS ₃ will be opened, but since the contacts 4SR ₁ and 4SR ₂ are closed by the relay 4CR, the arm 8 will be turned to the right. There is no problem with the downward movement.

When the seat support base 16 lands outside the vehicle, the micro switch MS ₆ is opened and the motor relay is activated.
The power supply to MR is blocked and the driving of the vertical hydraulic cylinder 10 is stopped. Here, since the seat 3 of the wheelchair 30 is supported by the seat support base 16, it is appropriate that the seat support base 16 is stopped at a position slightly above the landing position.

Once the seat support base 16 has been moved down to the appropriate position, the cover 53 is rotated to close the magnetic proximity switch 50.
to be inactive. As a result, contacts LS ₁ and LS ₂
Since the circuit is opened, the operation of the circuit is also prevented from driving the arm 8, which is completely stopped.

Thereafter, as shown in FIG. 4, the physically disabled person riding in the wheelchair 30 operates the operating ring 33 to move the wheelchair 30 backward with respect to the seat support base 16 so that the bottom surface of the seat 3 is directly above the seat support base 16. move it into position. When the support frame 40 of the seat 3 is positioned directly above the seat support base 16, a magnet (not shown) provided at the rear of the seat 3 approaches the magnetic proximity switch 50, and operates the magnetic proximity switch 50. Operation of magnetic proximity switch 50 causes contacts LS ₁ and LS ₂ to close again, allowing the circuit to operate.

In this state, by loosening the tightening screws 42 of the wheelchair 30, the seat 3 is fixed to the seat support frame 31.
After making it possible to remove the switch TS1U, the vertical movement operation switch 55 is operated to close the switch TS1U.
As a result, solenoid 63a is energized and motor relay MR is operated to move cylinder rod 10b upward. Accordingly, the seat support base 16 moves upward to lift the slide support frame 40 of the seat 3 and remove the seat 3 from the seat support frame 31. At this time, the positioning arm 44 provided at the rear of the slider support frame 40 fits between the boom 15 and the locking protrusion 16a provided at the end of the seat support base 16 on the boom 15 side, and the seat 3 is supported while being positioned at a predetermined position on the seat support base 16. Therefore, as will be described later, even if the seat support base 16 moves, the seat 3 will not slip off the seat support base 16.

After that, while sitting on the seat 3 supported by the seat support base 16, move the seat support frame 31.
is taken out from a position directly above the seat support base 16, wheels 34, armrests 35, footrests 37, and casters 36 are taken out from the seat support frame 31, the wheelchair 30 is disassembled, and these parts are stored in the vehicle interior. When the storage of the parts is completed, the vertical operation switch 55 is operated again to move the arm 8 upward, and the operation of the operation switch 55 is stopped at the predetermined upper limit position, that is, the position where the micro switch MS ₇ is closed.

Next, the rotation operation switch 56 is operated to close the switch TS2L to temporarily return it to the 90° position. This opens micro switch MS ₁₁ , which prevents relay 4CR from being energized and closes the contact.
4SR ₁ and 4SR ₂ are opened and the vertical operation switch 55 is opened.
make the operation impossible. In this state, when the swing operation switch 56 is operated to close the switch TS2L, the seat support base 16 swings toward the driver's seat position. When the seat support base 16 swings to the driver's seat position, the microswitch MS ₄ is closed, the microswitch MS ₈ is closed, and the microswitch MS ₉ is opened. As a result, the delay relay TR is temporarily activated in the same way as described above, and the operation by the swing operation switch 56 is disabled during that time.

When the seat support base 16 is placed at the driver's seat position, operate the vertical movement operation switch 55 to switch TS1.
D is closed and the seat support base 16 is moved down to the seating position. When the seat support base 16 reaches the seating position, microswitches MS ₅ and MS ₁₀ are opened to prevent further downward movement.

In this case, the seat support base 16 moves downward while moving slightly toward the front of the vehicle to a predetermined seating position, and the pair of seat support bases 18 and 18 provided on the floor 2 move downward.
When the slider support frame 40 of the seat 3 is placed so as to straddle the seat 3, the vertical movement operation switch 5 is turned on.
Stop the operation in step 5 to stop the downward movement of the seat support base 16. At this time, the seat support stand 16 is located between the pair of seat support stands 18, 18, and the slider support frame 40 of the sheet 3 is placed on the seat support stands 18, 18 so as to straddle the slider support frame 40. The front end of the slider support frame 40 is locked to a seat locking piece 20 provided at the front end of the seat holder 18 located at the center of the floor 2, but the rear end of the slider support frame 40 is not locked. . Therefore, the seat 3 may move toward the rear of the vehicle. Therefore, the locking hook 22 is rotated toward the front of the vehicle by operating the operating lever 26, and is locked to the locking pins 43 protruding from both rear ends of the slider support frame 40, so that the seat 3 is in the driving position. It is fixed so that movement of the vehicle in the front and rear directions is prevented. Further, movement of the seat 3 in the width direction of the vehicle from the driver's seat position is performed by a seat stopper plate 19 and a seat locking piece 20. Therefore, a physically disabled person sitting on the seat 3 in the driver's seat position can drive with peace of mind.

The above has been described until the physically disabled person in the wheelchair 30 sits in the driver's seat of the car 1, but if you want to get into the wheelchair 30 from the car, you can do it by following the steps in reverse to the above. .

Effects As explained above, according to the present invention, a seat support is attached to an arm that pivots and moves up and down between a position outside the vehicle and a driver's seat position, and a lifter disposed on the floor of the vehicle A horizontal cylinder and a vertical cylinder are provided for drive and vertical movement, and a switch means is provided to control a solenoid that is activated when each cylinder is driven in either direction for each drive mode of the arm. If the seat is removable from the wheelchair, the physically disabled person in the wheelchair must perform the operations to transfer to the driver's seat or vice versa. This can be done more easily and smoothly.

[Brief explanation of drawings]

1 to 8 are diagrams for explaining an embodiment of the drive control system for a vehicle getting on and off device according to the present invention. Fig. 2 is a side view illustrating the position of the lifter and its drive control system components; Fig. 3 is a side view illustrating the seat support when it is in the driver's seat position; Main part perspective view explaining the condition, 4th
The figure is a perspective view explaining the state when a physically disabled person in a wheelchair approaches the seat support base, Figure 5 is a front view of the wheelchair, Figure 6 is a side view of the wheelchair, and Figure 7 is a drive of the lifter. Fig. 8 is an electrical control circuit diagram for driving the lifter. 1...Automobile (vehicle), 2...Floor, 3...
Seat, 4... Lifter, 9... Horizontal hydraulic cylinder (horizontal cylinder), 10... Vertical cylinder (vertical cylinder), 16... Seat support base, 62a... First solenoid, 62b... Second solenoid ,
63a...Third solenoid, 63b...Fourth solenoid, TS2R...Switch (first switch means), TS2L...Switch (second switch means), TS1U...Switch (third switch means) ), TS1D... switch (fourth switch means), {50... magnetic proximity switch, LS ₁ , LS ₂ ...
...contact} (fifth switch means).

Claims (1)

[Scope of Claims] 1. Provided on a lifter that supports a seat support base at the tip of an arm that is disposed on the floor of a vehicle and rotates and moves up and down between a position outside the vehicle and a position of the driver's seat, a horizontal cylinder and a vertical cylinder for vertical movement, respectively; first, second, third, and fourth solenoids that are energized and activated when the horizontal cylinder and vertical cylinder are driven in two directions, respectively; a first switch means that is operated when the arm pivots to the right to energize the first solenoid; and a first switch that is operated when the arm pivots to the left to energize the second solenoid. a third switch means that is operated when the arm moves upward to energize the third solenoid; and a third switch means that is operated when the arm moves downward to energize the fourth solenoid. a fourth switch means for energizing; and a fifth switch means provided on the seat support base for supplying power to each solenoid and each switch means before turning and vertically driving the arm. A drive control system for a vehicle ingress/egress device, characterized by comprising: