JPS62101543A - Regulating device for reclining of vehicle seat - Google Patents

Abstract

PURPOSE:To simplify regulating operation of reclining of a seat, by a method wherein, through operation of one-action key, a seat back and a side support can be simultaneously regulated to a full flat position or returned to an initial position. CONSTITUTION:In the initial positions of a seat back and a side support, a full flat position 5b is selected by an input means 5, and full flat position 4b information of a memory means 4 is read out by a driving signal generating means 6. Meanwhile, a present position detecting signal is inputted from a position detecting means 3, a driving signal provided as a result of comparison with and computation of full flat information is outputted to driving means 7 and 8, and driving mechanisms 1 and 2 are driven in the direction of the full flat position. When the seat back is inclined backward and the side support is brought into a full opening position, the driving means 1 and 2 are brought to a stop. When the seat back and the side support are returned to the initial position again, it may be effected through selection of the key means 5 to an initial position 5a, and this enables simple regulation of reclining of a seat.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a reclining adjustment device for a vehicle seat, that is, a device for adjusting the recline of a seat back that supports the back of a passenger, and a side support that supports both sides of the flanks or thighs. It is related to.

Conventional technology and its problems Conventionally, vehicle seats have a seatback tilting mechanism for tilting the seatback, and this tilting mechanism can be adjusted to a desired position by key operation, and the position can be adjusted using a microcontroller. Store it on the computer, 1
A device has been proposed in which a desired position can be reproduced with a single key operation (for example, see Japanese Patent Application Laid-Open No. 138024/1983). Therefore, for example, if you memorize the fully flat position of the seat back in a microconvenience store,
No matter where the seatback is positioned, it is possible to easily recreate a fully flat position.

By the way, in order to prevent the seated person from swaying sideways when driving on rough roads, there are seat cushions or seatbacks that have side supports that can be opened and closed on both sides to support the seated person's flanks or thighs. For example, JP-A-57-1
No. 811;534.

In the case of a seat with this type of side support, when the seat is fully flat, it is better to fully open the side support for a more comfortable posture. However, in conventional seats, the side supports are manually adjusted by rotating the side handles to open and close them left and right, so when the seat is fully flat, the side supports must be adjusted each time, making the operation complicated. Furthermore, when returning to the original seating position, the seat back can be easily returned to its original position by key operation, but the side supports must still be adjusted manually.

Purpose of the Invention The present invention has been made in view of the above-mentioned problems.The purpose of the present invention is to enable the seat back and side supports to be adjusted to a fully flat position at the same time with a simple key operation; To provide a reclining adjustment device for a vehicle seat capable of returning a side support to its initial position.

Structure of the Invention In order to achieve the above object, the present invention provides a vehicle seat having a seat back drive mechanism that tilts the seat back and a side support drive mechanism that opens and closes the side supports, including a large key means, the seat back and the side supports. a storage means for storing the initial position before operation and a fully flat position in which the seat back is tilted to the rearmost position and the side supports are fully opened; a position detection means for detecting the current positions of the seat back and the side supports; and the above-mentioned manual key. reading information on the initial position or full flat position from the storage means based on the selection signal of the means;
The apparatus includes a drive signal generating means that generates a drive signal by performing a comparison operation with the detection signal of the position detection means, and a drive means that drives the drive mechanism in accordance with the drive signal.

The basic configuration of the present invention will be explained with reference to FIG. 1. 1 is a seat back drive mechanism, 2 is a side support drive mechanism,
3 is a position detecting means for detecting the current position of the seat back and side supports in response to signals from the drive mechanisms 1 and 2; 4 is a memory storing the initial position 4a and full flat position 4b of the seat back and side supports before operation; Means 5 is an input key means for selecting between the initial position 5a and the fully flat position 5b; 6 is a means for reading information on the initial position 4a or the fully flat position 4b from the storage means 4 based on the selection signal of the input key means 5; Drive signal generation means 7 for generating a drive signal by performing a comparison operation with the detection signal of the detection means 3;
, 8 is a drive means such as a drive circuit that drives the drive mechanism 1.2 in response to a drive signal.

For example, when the initial position is a support position according to the body shape of the seated person, if the full-flat position 5b is selected using the input key means 5, the drive signal generating means 6 reads the full-flat position W4b information from the storage means 4, This full-flat information and the current position detection signal input from the position detection means 3 are compared and calculated, and a drive signal is output to the drive means 7 and 8. The drive means 7 and 8 drive the opening drive mechanism 1.2 to which the drive signal is input in the direction W to the fully flat position.

When the seat back and side supports reach the fully flat position (seat back tilted backward, side supports fully open), the detection signal of the position detection means 3 and the fully flat position 1 information 4b of the storage means 4 match, so the drive signal is O
FF and stops the drive mechanism 1.2 via the drive means 7.8. Input key means 5 from this full flat position
If the initial position 5a is selected, the driving UJ mechanisms 1 and 2 can be driven and returned to the initial support position by the operation opposite to the above. In the above configuration, the case where the input key means has two keys at the initial position and the full flat position is shown, but the invention is not limited to this, and by pressing one key,
The initial position and the full flat position may be selected alternately. Further, the seat back and the side supports may be driven simultaneously, but they may also be driven sequentially under sequence control.

DESCRIPTION OF EMBODIMENTS FIG. 2 shows a vehicle seat 10 according to the present invention, which includes a seat cushion 11 installed on a floor (not shown) so as to be able to rise and fall in the vertical direction, and a seat cushion 11 connected to the seat cushion 11 so as to be tiltable in the front and back directions. The seat back 12 is configured with a seat back 12. The seat cushion 11 is composed of a plurality of divided cushion members, and includes a seat cushion main body 14 fixed to a seat cushion frame 13,
It has a thigh support 15 that is movable in the vertical and longitudinal directions with respect to the seat cushion frame 13, and side supports 16 provided with openable and closable bellows on both sides of the seat cushion frame 13. On the other hand, the seat back 12 is also composed of a plurality of divided cushion members, and includes a Silalda pad 1 fixed to the seat back frame 17.
8, a lumbar support 19 that is movable vertically and longitudinally with respect to the seat back frame 17, and a side support 20 that can be opened and closed with respect to the seat back frame 17.
and a headrest 21 provided at the upper end of the seat back frame 17 so as to be movable up and down.

A total of 10 motors Ma"Mj (see Fig. 4) are installed inside the seat 10 to operate the various parts mentioned above. In other words, in contrast to the operating direction (indicated by arrows) in Fig. 2, To explain, Ma is a sliding motor that moves the entire seat 10 back and forth (direction C), Lung is a motor that moves the entire seat IO up and down (direction b), and Mc is a motor that moves the seat back 12 back and forth (direction B). A reclining motor for tilting the thigh support 15 up and down (direction C);
Me is in front of Sai Support 15! & Motor to operate in (C direction), ? Ir is a motor for opening and closing the side support 16 on the seat cushion side (C direction), Mg is a motor for moving the lumbar support 19 back and forth (g direction), and Ir is a motor for moving the lumbar support 19 up and down (h direction).
Mi is the motor for opening and closing the side support 20 on the seat back side (direction C), Mj is the motor for moving the headrest 21 up and down (direction C).
This is a motor to operate the motor. The driving of the motors is sequentially controlled by a seat control microcomputer 24, which will be described later, in order to eliminate problems such as electrical load caused by driving multiple motors simultaneously.
For example, they are driven in order from Ma to old. A specific mechanism for operating each cushion member as each motor Ma=Mj rotates is described in, for example, Japanese Patent Laid-Open No. 56-1380.
No. 24, JP-A-58-76334, Utility Model Application No. 6
A known mechanism such as that described in Japanese Patent No. 0-97633 may be used.

FIG. 3 shows an input keyboard 22, which is detachably arranged on the left side of the seat cushion 11. As shown in FIG. The keyboard 22 has 10 numeric keys To-T from "0" to "9", rOKJ, rCLJ, and rsTAR.
T J, 41 fixed function key F of rsTOPJ, ~
F4, and four arrow keys D1 to D for instructing up/down and left/right operating directions. Above r 5TOP
The J key F is an emergency stop switch, and when this key F is pressed, all movement of the seat stops. An LED 23 (see FIG. 4) is arranged behind each of the keys, and the LED 23 lights up when the key is pressed. In addition, in the manual mode, which will be described later, the LEDs 23 of the arrow keys D and -D are turned on only when the arrow keys indicate operable directions.

FIG. 4 shows an electric circuit for controlling the posture of the vehicle seat 10, and 24 is a seat control microcomputer (hereinafter referred to as a seat control microcomputer) installed at the bottom of the seat 10. As is well known, this microcomputer 24 includes a CPU 25, a ROM 26, and a RAM 27.
, and an output port (I10 port) 28, and the ROM 26 stores the CPU 2 according to each mode described later.
Programs and constant data for controlling 5 are written. The constant data includes, for example, a standard value in auto mode, an operation setting amount in refresh mode, tight fit mode, and relax mode. Further, the RAM 27 is used as a data memory for the CPU 25, and stores the initial position of each motor before operation, new data in memory mode, and the like. Furthermore, I/○
The boat 28 is composed of a launch circuit, receives a signal applied through a signal line 29, temporarily records data, and outputs the data to a motor drive circuit 30 and a CRT control microcomputer 34, which will be described later.

The seat 10 is provided with a drive circuit 30 for driving each motor Ma=Mj and a counter 31 for detecting the number of revolutions of each motor Ma=Mj. Upon receiving the signal, the current position of the motor Ma''Mj is detected and a control signal is output to the drive circuit 30.The counter 31 is, for example, a slit plate attached to the rotating shaft of each motor Mg to Mj. and facing rj7!'' with the slit plate in between.
A pulse signal is received from a sensor composed of a light emitting/receiving element placed in the motor, and the rotation speed and rotation direction of the motor are detected. Note that the operation of motor Ma=Mj may be set at the red position at the limit or toss, respectively, but in the above embodiment,
The battery is connected to the seat control microcomputer 24 at the vehicle manufacturing stage.
When connected to the seat 10, all motors are operated to one operating limit position, and the detected value of the counter 31 at this time is stored in the RAM 27 as the operating limit position of one end, and the operating limit position of the other end is The CPU 27 calculates the operation limit position at one end and stores it in the RAM 27. The data stored in RAM27 is stored in RAM2 even if the ignition switch is turned off.
7, so it never disappears.

33 is a CRT display installed in the instrument panel, 34
is a CRT control microcomputer (hereinafter referred to as CRT control microcomputer) installed in a console box or trunk room, and like the seat control microcomputer 24, this microcomputer 34 has a CPU 35 and a ROM 36.
, RAM37, person, output port (I10 boat)
38. In addition to the display program, display data such as figures for each cushion part of the seat 10 and arrow figures indicating the direction of movement are written in the ROM 3'6.
The PU 35 exchanges data with the RAM 37 according to the display program, and displays the data on the CRT 33.

FIG. 5 is an example of the display screen of CRT33, and sheet 1
A main area 39 that displays the entire figure of 0, a motion direction designation area 40 that displays the motion direction of the motion part with an arrow in the manual mode, a first sub-area 41 that displays the mode in letters, and a motion direction designation area 40 that displays the motion direction of the motion part in the manual mode. a second sub-area 42 that displays in text, and a third sub-area 4 that displays operational seats such as "driver's seat" and "passenger seat" in text.
It is composed of 3. In the figure in the main area 39, only the moving part blinks to display the moving part to the operator, and the main area 39 also includes keys on the keyboard 22 that should be operated in place of or together with the figure. The number is displayed and the keyboard 22 can be created interactively.

Next, we will explain the operation of the microcomputer 24.34 with the above configuration at '7A.
This will be explained with reference to the flowcharts and display screens shown in FIGS. 6 to 39.

First, this device can be operated in "Initial Menu Mode", "Auto Mode", "Manual Mode", and "Refresh Mode".
, ``Full Flat Mode,'' ``Memory Mode,'' ``Memory Return Mode,'' ``Tight Fit Mode,'' and ``Relaxation Mode.''

Figures 6 and 7 show the initial operation leading to the menu mode. First, it is determined whether the door is open or not (50). If the door is open, it is determined whether the side support 1-16.20 is fully open. 51), if it is not fully opened, the side support I6
When the side support 16 reaches the fully open position (53), the motor drive is stopped (54), and the same operation is performed on the side support (52).
Also perform the morph old that activates 20, (55),
After completing the operations (56) and (57), return is made. As a result, the side supports (16, 20) are fully opened at the same time as the door is opened, making it easier for passengers to get on and off the vehicle. On the other hand, when the door is closed, it is necessary to determine whether the ignition switch is turned on or not (58), and if it is turned off, return is performed, and if it is turned on, the next rsTART
It is determined whether or not the J key F is pressed (59). r
5TART'' key F3 is pressed, it is then determined whether the vehicle is running (60). Do not adjust the seat while the vehicle is running, as there is a risk that the driver will make a driving mistake. If the vehicle is stopped,
The CRT 33 displays the menu mode screen shown in FIG. 7 (61) and shifts to the menu mode.

In the menu mode, it is determined which number key from "1" to "8" has been pressed (62), and the mode is shifted to the mode corresponding to the pressed key.

8 to 13 show the case where the "]" key T is pressed, that is, the auto mode. In the auto mode, by inputting the height and weight of the seated person, each part of the seat 10 can be automatically adjusted to a standard position corresponding to the body shape of the seated person. In FIG. 8, when the "1" key T1 is pressed (63), the operation seat input screen shown in FIG. Choose from. To activate the driver's seat, press the "l" key T2, and to activate the passenger seat, press the "2" key T2. For example, "1" key T
When you press , (65), the height input screen shown in Figure 11 is displayed on the CRT33 (66), and since the third digit is fixed to "1", there are two numbers, the second and first digit. Enter (6
7). After entering the height data, press the "OK" key F if the correct number is entered (68), or press the rcLJ key F2 if the incorrect number is entered (69).
). Press the rcLJ key F2 to return to the initial menu mode. When you press the "OK" key F, the 12th
The weight input screen shown in the figure will be displayed (70), and you will need to enter a two-digit number in the same way as when inputting height (71). When the input is complete, press the "OK" key F or the rcLJ key F2 (71).
2), (73).

If you press the "OK" key F, the first
The operation status display screen shown in Figure 3 is displayed (74), and sheet 1
The entire figure of 0 is displayed, and all parts blink as indicated by diagonal lines. In parallel with this, the microcomputer 24 calculates a predetermined 7jiF from the input height data and weight data.
x, read the standard data from the RAM 27 (75), and sequentially drive all motors Ma = Mj (75).
6) Place the seat in a standard position according to the body shape of the person sitting. The operation of (76) will be explained with reference to Fig. 9. First, the motor Ma for sliding the entire seat back and forth is driven (77), the current position is compared with the limit position (78), and the standard value and Comparison (79) is performed, and if the limit position or standard value is reached, motor Ma is stopped (8
0'), and then the motors 1 to 3 are sequentially driven in the same manner, and when the adjustment of each part of the seat to the standard position is completed, the process automatically returns to the menu mode (FIG. 7).

Figures 14 to 16 are "2" + -7 in menu mode.
When 2 is pressed, the manual mode is indicated, and each part of the seat can be adjusted to any position according to the preference of the occupant. In FIG. 14, when the "2" key T2 is pressed (
81), an operation seat input screen similar to that shown in FIG. 10 is displayed on the CRT 33 (82), and here, for example, "
1" key T1 is pressed (83), the manual screen shown in FIG. 15 is displayed on the CRT 33 (84). On the manual screen, each part of the sheet is displayed corresponding to a number from 1 to 8. 0 For example, if you press the "1" key T (85),
Since you have specified the sheet slide, CRT33
The sheet slide screen shown in Figure 16 is displayed (86).
Although not shown below, pressing the "2" key T2 displays the seat up/down screen, and pressing the "3" key T displays the reclining screen.
4" key T, press the Sai support screen, "5" key T
Press 5 to display the side support screen on the seat cushion side.
Press the "6" key T6 to display the lumbar support screen, press the "7" key T7 to display the seat pack side support screen,
When the "8" key T8 is pressed, each headrest screen is displayed. On the seat slide screen, the entire shape of the seat is displayed in the main area 39, the operating parts are blinking (in this case, all the parts are blinking), arrows indicating the front and rear directions are displayed in the operating direction designation area 40, and the In the second sub-area 42, the words "NOTE SLIDE" are displayed. In parallel with the display of the sheet slide screen above, the keyboard 2
The arrow keys D, , D, corresponding to the movement direction of 2 will light up. When you press one of the arrow keys, 87), D, or
), motor Ma is driven while the key is pressed (89
), the seat can be slid forward or backward as far as desired. If the operating limit position is reached while the motor Ma is being driven, a warning screen saying "Operating range has been exceeded" is displayed on the CRT 33 (90).

After that, press the "OKJ key F" to select another part (91), and the manual screen shown in Figure 15 will be displayed on the CRT 33 again, and from now on, you can adjust the necessary parts one by one.Select another mode again. To do this, press the rcLJ key F2 (92) to return to the menu mode.

Figures 17 to 19 show "3" key T in menu mode.
If you press , it indicates refresh mode. Refresh mode is a mode for recovering the fatigue of the seated person, and the thigh support 15 and thigh support 6 of the seat are pressed.
, 20, the lumbar support 19 is reciprocated by a certain amount to change the contact of the seat to the body and eliminate the feeling of numbness.

In FIG. 17, when the "3" key T3 is first pressed (
93), an operating seat input screen similar to that shown in Fig. 10 is displayed on the CRT 33 (94), and for example, when the "1" key T indicating the driver's seat is pressed (95), the fresh screen shown in Fig. 19 is displayed on the CRT 33. Displayed (96). On the refresh screen, the entire shape of the seat is displayed, and the moving parts (thigh support, side support, lumbar support) flash. In parallel with the display of the refresh mode screen, the motors corresponding to the operating parts are sequentially driven back and forth under sequence control (97).
To explain Figure 8, first of all, Cysupport 15
98)
, for example, by moving the thigh support 15 upward.

Then, it is determined whether or not the thigh support 15 has reached the upper limit position (99), and when it reaches the upper limit position, the motor Md is reversed (100).As the motor Md is reversed, the thigh support 15 moves downward, and the thigh support 15 moves downward. 15 has exceeded its original position and reached the lower limit position (101),
When the lower limit position is reached, the motor Md is rotated normally again (102
). As the rotation rotates forward, the thigh support 15 moves upward,
When the thigh support 15 returns to its original position (103), the motor Md is stopped (104). Figure 18 shows 1 between the motors.
This operation is similarly performed for motor Me=Mi. Once all the motors have finished reciprocating,
The operation returns to the first motor Md again, and the above operation is repeated until the "3" key T, which is the release key, is pressed. "3
”Key T.

When is pressed (105), the screen returns to the menu mode and the motor stops driving.

Figures 20 to 23 are "4" key T4 in menu mode.
In the full flat mode, the seat back 12 is reclined to a fully reclined position (horizontal position) for the seated person to rest.
Then, the side supports 16 and 20 are opened to the fully open position and then returned to their original positions. In FIG. 20, when the "4" key T4 is pressed (106), the CRT
33 displays the operation seat input screen (107)
, Incidentally, unlike in Fig. 10, this screen has the "3" key T,
For example, if you press the "l" key T indicating the driver's seat (108), the screen shown in FIG. 23 will be displayed on the CRT 33. A full flat screen is displayed (109). The entire shape of the sheet is displayed on the full flat screen, and
The moving parts (the entire seat back and the side boat on the seat cushion side) flash. In parallel with the above full flat screen display, motor Mc corresponding to the operating part,
Mf and Mi are sequentially driven in the full flat direction under sequence control (110). To explain this operation with reference to FIG. 21, first, the motor Mc for reclining the seat back 12 rotates in the normal direction (111), then the seat back 12 is tilted backwards, and when the seat back 12 reaches its limit position (112), Stop motor Mc (113
), the above operation is performed sequentially for the motor arm for opening and closing the side support 16 on the seat cushion side and the motor Mi for opening and closing the side support 20 on the seat back side, and when the motor Mi stops, the seat back is closed. 12 is in a fully reclined state, and the side supports 16.20 are also fully open. Next, press "4" which is the release key displayed on the full flat screen (Figure 23).
When key T4 is pressed (114), motors Me, Mf, M
i is driven back to its original position under sequence control (115). To explain this operation with reference to Fig. 22,
First, the motor Me for reclining the seat back 12 is reversed (116), it is determined whether the seat back 12 has reached the original upright position (117), and if the seat back 12 has reached the original position, the motor Mc is stopped (118). ). The above operation is performed sequentially for the motor Mf and the old motor, and when the motor Mi stops, the seat back 12 and the side supports 16, 20 return to their original positions, ending the full flat mode and returning to the menu mode.

Figures 24 to 26 are "5" key T5 in menu mode.
If you press , it indicates memory mode.

In the memory mode, the current position of each part of the seat is stored in correspondence with the seated person so that it can be recalled in the memory return mode described later. In Figure 24, “
5" key T5 is pressed (119), an operation seat input screen similar to that shown in FIG. 1O is displayed on the CRT 33 (12
0), for example, if you press the "1" key T that indicates the driver's seat (
121) The seated person input screen shown in FIG. 25 is displayed on the CRT 33 (122). On the seated person input screen, there are four types of seated persons: "Owner", "Family 1", "Family 2", and "Friend". Corresponding numbers from rlJ to "4" are displayed,
For example, when the "1" key T is pressed (123), it is determined that the current position of each part of the sheet is to be stored in correspondence with the "owner". At the same time as key T is turned on, the 26th
The confirmation screen shown in the figure is displayed for a certain period of time (124), and the operator confirms that there are no errors in the input of the seated person.At the same time, the current position of each part of the seat is written to the address of the "owner" in the RAM 27. (125), and returns to memory mode when writing is completed.

Figures 27 to 31 are "6" key T6 in menu mode.
In the memory return mode, which indicates the memory return mode, the positions of the respective parts of the seat stored in correspondence with the seated person in the above-mentioned memory mode are recalled and reproduced. In FIG. 27, when the "6" key T6 is pressed (126), CI? An operational seat input screen similar to that shown in Figure 1O is displayed on T33 (127), and for example, when you press the rlJ key T1 indicating the driver's seat (128), the CRT
33, the seating designation screen shown in Figure 29 is displayed (129
). On the seated person designation screen, numbers "1" to "4" corresponding to the four types of seated persons are displayed in the same way as in FIG. It is determined that the positions of the respective parts of the sheet stored in correspondence with are to be reproduced. At the same time as key T is turned on, the third
The i-certification screen shown in Figure 0 is displayed for a certain period of time (131), and the operator confirms that there is no error in the seating designation. Read out (132). Subsequently, the operating part display screen shown in FIG. 31 is displayed on the CRT 33 (133), and in parallel with this, the motors Ma=Mj are sequentially driven under sequence control (134). To explain this operation with reference to FIG. 28, first the motor Ma is driven (135), and the memory position is sequentially compared (136).
, when the memory position is reached, the motor Ma should be stopped 137
), and thereafter motors Mb to Mj are sequentially driven to the memory position in the same manner. As each of the motors is driven, the operating parts are displayed blinking on the operating part display screen of FIG. 31. Then, when the last motor stops, the process returns to the menu mode.

Figures 32 to 35 show "7" key T7 in menu mode.
If you press , it indicates tight fit mode. Tight fit mode is to prevent the seated person from being swayed from side to side as when driving on rough roads, and side support 1 is pressed.
6.20 is moved in the direction of closing by a set amount (for example, 10101l on both the left and right sides) from a position corresponding to the body shape of the seated person to hold the seated person's body.In Fig. 32, the "7" key T
When 7 is pressed (138), the tight fit screen shown in Fig. 35 is immediately displayed on the CRT 33 without displaying the operation seat input screen shown in Fig. 1θ (139).
In parallel with this, motors Mf and Mi are side support 1.
6 and 20 are driven in the direction of closing (140). This is because the tight fit mode is used to hold the occupant in an emergency, and not only the driver's seat but also the passenger's seat is controlled at the same time. On the tight fit screen, the moving parts (side supports 16 and 20) are displayed blinking. The operation of the motor 9Mi is explained with reference to FIG. 33. First, the motor Mf is driven in the closing direction (141), and a comparison judgment with a limit position (142) and a comparison judgment with a set amount (143) are performed. If the side support 16 is closed to the limit position or by a set amount, the motor will be stopped.144)
, similar operations are performed for the motor Mi as well. After the tight-fitting state is achieved, the release key "7" key T7 can be pressed to return to the original state. Press key T7 (1
45) ``Return to original position'' is displayed on the tight fit screen of CRT33, and in parallel with this, motor Mf
, Mi are driven in the direction to open the side support 16.20 (146). To explain this operation with reference to FIG. 34, first the motor Mf is driven in the opening direction (147).
, a comparison is made with the original position stored in the RAM 27 (148), and if it returns to the original position, the motor arm is stopped (149), and the same operation is performed for the motor 11 as well.

Then, when both side supports 16.20 return to their original positions, the screen returns to the menu mode.

Figures 36 to 39 are "8" key T8 in menu mode.
If pressed, indicates the relaxing mode. Relax mode ° is intended to reduce the fatigue of the occupant when driving in a stable state for a long time such as when driving at high speed. For example, both the left and right sides are driven in the opening direction by 10 cranes) to make the seated person's body more comfortable. In Figure 36,
When "8" key T8 is pressed (150), CRT3
, H, : indicates the operating seat input screen (similar to the full-flat mode, it is also displayed when both seats are operated in response to the "3" key T3) (151), indicating, for example, the driver's seat. Press "1" key T (152), CR
The Glue Lux screen shown in Figure 39 is displayed on T33 (153
), the moving part (side sabot) 16°20) is displayed blinking. In parallel with the display of the relaxation screen, motors Mf and Mi are driven in the direction of opening the side supports 16.degree. 20 (154). To explain this operation with reference to FIG. 37, first the motor gate ``is driven in the opening direction (15
5) Comparison judgment (156) with the limit position and comparison judgment (157) with the set amount are performed, and the side support) 1
6 is opened at the limit position or by a set amount, the motor Mf is stopped (158), and the same operation is performed for the old motor. After entering the relaxed state, you can return to the original state by pressing the "8" key T8, which is the release key. key T8
When you press (159), “
"Return to original position" is displayed, and in parallel with this, the motors Ml and hl are driven in the direction of closing the side supports 1-16' and 20 (160). To explain this operation with reference to FIG. 38, first the motor Mf is driven in the closing direction (161), and a comparison is made with the original position stored in the RAM 27 (162). 163) to stop motor Mf, and perform a similar operation to motor Mi.
Then, when both side supports (16° and 20) return to their original positions, you will return to the menu mode.

Since this device has the above-mentioned functions, it has the following effects.

First, all the next operating instructions and current operating status are displayed on the CR7 screen, allowing for interactive operation.
There is no need to check the operating instructions in the instruction manual each time, making it easier to operate.

Second, as a key to operate each part of the seat,
Since numeric keys are shared in addition to the four function keys, all parts and all directions can be specified with a small number of keys despite the large number of operating parts and the number of operating directions. Therefore, the keyboard could be downsized.

Thirdly, when in manual mode, the operating direction is displayed on the CR7 screen, and the arrow keys indicating the operating direction on the keyboard are illuminated, eliminating mistakes in operating direction and improving operability.

Fourthly, we display the shapes of each part of the sheet on the CRT screen, and only the parts that move are made to flash. Confirmation has become easier.

Fifth, we added new modes that were not available before, such as relax mode, tight fit mode, full flat mode, and even refresh mode, so we were able to provide a vehicle seat that is safe and does not cause fatigue even when riding for long periods of time. .

Effects of the Invention As is clear from the above explanation, according to the present invention, the seat back and side supports can be adjusted to the fully flat position by one-touch key operation, and can be returned to their original positions by operating the key again. There is no need to manually adjust the side supports each time, making the operation extremely easy.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the basic configuration of a reclining adjustment device according to the present invention, Fig. 2 and the following show an example of a vehicle seat to which the present invention is applied, and Fig. 2 is an external perspective view of the vehicle seat; Fig. 3 is a front view of the keyboard, Fig. 4 is an electric circuit diagram of the posture control device, Fig. 5 is a configuration diagram of a CRT screen, Figs. 6 and 7 are a flowchart of the menu mode and a CRT screen diagram, Figures 8 to 13 are flowcharts and CRT screen diagrams for auto mode, and Figures 14 to 16 are flowcharts and CRT screen diagrams for manual mode.
RT screen diagrams, Figures 17 to 19 are refresh mode flowcharts and CRT screen diagrams, Figures 20 to 23 are full flat mode flowcharts and CRT screen diagrams, and Figures 24 to 26 are memory Mode flowchart diagram and CRT screen diagram, Figures 27 to 31
The figure is a flowchart diagram of memory return mode and C
RT screen diagrams, Figures 32 to 35 are flowcharts of tight fit mode, and CRT screen diagrams, Figures 36 to 35.
FIG. 39 is a flowchart diagram and a CRT screen diagram of the relax mode. ■ Seat back drive mechanism, 2 Side support drive mechanism, 3 Position detection means, 4 Memory means, 5 Input key means, 6 Drive signal ordering means,
7゜8...Driving means. Applicant Daihuff Industries Co., Ltd. Agent Patent Attorney Hidetaka Tsutsui Figure 1 Figure 4 Figure 7 Figure 1 o! '+111'4
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Claims (1)

[Claims] (1) In a vehicle seat having a seat back drive mechanism that tilts the seat back and a side support drive mechanism that opens and closes side supports, an input key means;
a storage means that stores the initial position of the seat back and side supports before operation and a fully flat position in which the seat back is tilted to the rearmost position and the side supports are fully opened;
Position detection means for detecting the current positions of the seat back and side supports, and information on the initial position or full flat position is read from the storage means based on the selection signal of the input key means, and comparison calculation is made with the detection signal of the position detection means. 1. A reclining adjustment device for a vehicle seat, comprising: a drive signal generating means for generating a drive signal; and a drive means for driving a drive mechanism in accordance with the drive signal.