JPH0517054B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a vertical adjustment device for a rear seat of a vehicle that is divided into two or more parts on the left and right sides.

(Prior Art) The conventionally known Japanese Patent Application Laid-Open No. 57-60930 discloses a divided rear seat formed by dividing the rear seat of a vehicle into two or more parts on the left and right sides, and a seat mounted on each seat of the divided rear seat. This document describes a vertical adjustment device for a rear seat of a vehicle, which comprises a manual seat front side vertical movement device.

(Problem to be Solved by the Invention) The split rear seat of the above-mentioned known example is one that can be moved up and down by manual operation, and although the split rear seat can be moved up and down separately on the left and right sides, it is difficult to adjust the seat up and down as a whole. I can't.

Therefore, when it is necessary to adjust the position of the divided rear seats up or down by the same amount, there is a problem in that the operation is extremely troublesome.

It is good for the split rear seat of a vehicle to be able to adjust its vertical position independently without requiring the consent of the passenger in the adjacent seat, but in some cases, it may be possible to adjust the vertical position all at once, increasing the value of use and providing great convenience. It is.

(Purpose of the Invention) Therefore, the present invention has a split rear seat that can be adjusted up and down individually, and can also be adjusted up and down all at once, and can be done only by operating a switch. This is how it was done.

Furthermore, the divided rear seats, which have been adjusted up and down by each occupant, can be automatically aligned in a horizontal line.

(Means for Solving the Problems) Therefore, the present invention provides a right seat 2 which is divided into left and right sides.
and a left seat 4, a right seat motor 20a that moves the right seat 2 up and down, a left seat motor 20c that moves the left seat 4 up and down, and a position detection body 23 provided on either of the left and right seats 2, 4. and a position detection switch 15 provided on the other side, and manual switches 41 and 4 for the right seat connected to the motor 20a for the right seat.
2, left seat manual switches 39, 40 connected to the left seat motor 20c, and a changeover switch 38 provided in one of the motor circuits, the position detection switch 15 and the right seat manual switch 41. , 42 and the manual switch 39 for the left seat,
40 and the changeover switch 38 are as follows: a. When the changeover switch 38 is set to the independent operation side, the position detection switch 15 is switched to an inactive state in which the motor is not energized, and the manual switches 41 and 42 for the right seat and the manual switch for the left seat are 39 and 40, the left and right seats 2 and 4 can be adjusted up and down independently.b When the changeover switch 38 is set to the linked operation side, the position detection switch 15 is switched to the operating state in which the motor can be energized, and the left and right seats 2 and 4 are adjusted up and down. When there is a positional deviation, the position detection switch 15 and the position detection body 23
The position detection switch 15 automatically energizes the other motor with one of the left and right seats 2 and 4 as a reference to correct the position shift. When one of the left and right seats 2, 4 is moved up or down using the manual switches 41, 42 for the right seat or the manual switches 39, 40 for the left seat when there is no vertical position shift, the other seat is moved in conjunction with the position detection switch 15. and a vertical adjustment device for a rear seat of a vehicle connected to each other so that they can be moved up and down together; a right seat motor 20a that moves the middle seat 2 up and down, a middle seat motor 20b that moves the middle seat 3 up and down, a left seat motor 20c that moves the left seat 4 up and down, and either the right seat 2 or the middle seat 3. a position detection body 23 provided in either one of the middle seat 3 or the left seat 4 and a position detection switch 15 provided in the other; and,
Right seat manual switches 41, 42 connected to the right seat motor 20a and the middle seat motor 20
middle seat manual switches 44, 45 connected to b, left seat manual switches 39, 40 connected to the left seat motor 20c, and right seat motor 20.
a and changeover switches 38, 43 provided in the motor circuits of any two of the middle seat motor 20b and the left seat motor 20c, the position detection switch 15, the right seat manual switch 41, 42, and The left seat manual switches 39, 40, the middle seat manual switches 44, 45, and the changeover switches 38, 43 are as follows: a. When the changeover switches 38, 43 are set to the independent operation side, the position detection switch 15 does not energize the motor. The manual switches 41 and 42 for the right seat and the manual switch 44 for the middle seat are switched to the inactive state.
45 and the manual switches 39 and 40 for the left seats, the left and right middle seats 2, 3, and 4 can be adjusted up and down independently.b When the changeover switch 43 is set to the linked operation side, the position detection switch 15 is in an operating state in which the motor can be energized. If there is a vertical positional deviation between the left and right seats 2 and 4 and the middle seat 3, the position detection switch 1
5 and the position detection body 23 to detect the positional deviation between the left seat 4, the middle seat 3, and the right seat 2,
The middle seat motor 2 is activated by the position detection switch 15.
0b to correct the misalignment of the middle seat 3 with reference to either the right seat 2 or the left seat 4, and the motor 20c for the left seat is automatically energized by switching the changeover switch 38 to the interlocking side. middle seat 3
Correct the misalignment between either the left seat 4 or the right seat 2 based on Manual switch for middle seats 44,4
5. When either the left or right seats 2, 4 or the middle seat 3 is moved up or down using either the left seat manual switch 39 or 40, the other seats are moved in conjunction with the position detection switch 15, and all three seats are moved up or down. This is a vertical adjustment device for the rear seat of a vehicle that is connected to each other so that they can be moved up and down together.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a rear seat divided into left and right sides, and FIGS. 1 and 2 show a divided rear seat 1 divided into three parts. ,
2 is the right seat, 3 is the middle seat, and 4 is the left seat. The seat 1 may be divided into left and right halves to form only a right seat 2 and a left seat 4, without providing a middle seat 3.

Thus, the right seat 2, middle seat 3, and left seat 4 of each divided rear seat 1 are attached to the vehicle body so as to be vertically movable. 5 is a bearing fixed to the vehicle body side (only the left seat 4 is shown, the right seat 2 and the middle seat 3 are omitted);
and are provided in parallel on the front and rear sides of the left seat 4, respectively, and front and rear shaft rods 6, 6' are fitted between the respective bearings 5, 5 so as to be rotatable only.

The lower ends of arms 7, 7 which are inclined rearward are fixed to both the left and right ends of the front axle 6, and the upper ends of the arms 7, 7 have projecting pieces 9, 9 hanging down from the metal frame 8. The lower end is fixed by shafts 10, 10. The lower ends of arms 11, 11, which protrude rearward in the same way as the front axle lever 6, are fixed to both left and right ends of the rear axle rod 6', and a protrusion hanging from the metal frame 8 is attached to the upper end of the arms 11, 11. The lower ends of 12, 12 are fixed by shafts 13, 13. Rear shaft 6'
A crank 14 is formed at the right end of the crank 1.
A position detection switch 15 is fixed to the position detection switch 4.

Reference numeral 16 denotes a threaded rod extending in the front-rear direction, and the rear end of the threaded rod 16 is pivoted by a pin 18 to the tip of a projection 17 that projects upward from the rear shaft rod 6'. A gear 19, which is free to rotate only, is screwed into the screw rod 16 (FIG. 6), and a worm gear 21 of a motor 20 is meshed with the gear 19.

The motor 20 is connected to the right seat 2 of each divided rear seat,
It is installed in middle seat 3 and left seat 4, respectively.
0a indicates a motor attached to the right seat 2, 20b to the middle seat 3, and 20c to the left seat 4.

At the joint 22 of the right seat 2 with the middle seat 3, there is a rear axle rod 6'.
A fan-shaped plate-shaped position detection body 23 having a center at the center is provided. A V-shaped cut groove 24 is formed at an intermediate position between the upper and lower sides of the position detection body 23. The position detection switch 15 is attached to the joint portion 22 of the middle seat 3 with the right seat 2.

The position detection switch 15 is formed by two upper and lower position detection switches 25 and 26 and one detection roll 27. Vertical position detection switch 25, 2
6 is a push button 28, 29 at a certain interval in the front and back direction.
are provided facing each other. The support arm 30 of the detection roll 27 is rotatably attached to the crank 14 on the side of the middle seat 3 via a shaft 31.

32 is a board on which the upper position detection switch 25 is mounted, and 33 is a board on which the lower position detection switch 26 is mounted.The shaft 31 connects these three so that the upper and lower position detection switches 25 and 26 rotate together with the boards 32 and 33. Attach together. 34 is a protrusion projecting outward from the upper position detection switch 25, 35 is a protrusion projecting outward from the lower position detection switch 26, and a reduction spring 36 is attached between the protrusions 34 and 35.
The detection roll 27 engages with the V-shaped cut groove 24 .

A detection body and a position detection switch similar to the detection body 23 are provided at the joint 22' between the middle seat 3 and the left seat 4, but since they have the same structure, they are given the same reference numerals.

FIG. 7 is a wiring diagram when the rear seat 1 is divided into left and right parts, and 38 is a wiring diagram of the left seat 4 where the position detection switch 15 is switched between the interlocking operation position (b position) and the independent operation position (a position). Interlocking changeover switches provided in the motor circuit from the power supply to the motor 20c, 39 is the upper movement switch for the left seat 4, 40 is the lower movement switch for the same, 41 is the upper movement switch for the right seat 2, and 42 is the lower movement switch for the same. be.

The position detection switch 15, the manual switches 41 and 42 for the right seat, the manual switches 39 and 40 for the left seat, and the changeover switch 38 are arranged so that when the changeover switch 38 is set to the independent operation side, the position detection switch 15 is The motor is switched to an inactive state in which no electricity is applied to the motor, and the left and right seats 2 and 4 are operated by the right seat manual switches 41 and 42 and the left seat manual switches 39 and 40.
can be adjusted up and down independently, and when the changeover switch 38 is set to the linked operation side, the position detection switch 15 is switched to the operating state in which the motor can be energized. The positional deviation is detected based on the positional relationship between the detection switch 15 and the position detection body 23, and the position detection switch 15
, automatically energizes the motor of the other one of the left and right seats 2 and 4 as a reference to correct the positional deviation, and when there is no vertical positional deviation between the left and right seats 2 and 4,
When one of the left and right seats 2, 4 is moved up or down using the right seat manual switches 41, 42 or the left seat manual switches 39, 40, the other seat is moved up or down by the position detection switch 1.
5, so that they are linked and connected to each other.

Moreover, FIG. 8 is a wiring diagram when the rear seat 1 shown in FIGS. 1 and 2 is divided into three parts, and 43 indicates the interlocking operation position (b position) and the independent operation position (a position) of the position detection switch 15. 44 is an upward movement switch for the middle seat 3, and 45 is a downward movement switch for the middle seat 3.

The position detection switch 15, the right-seat manual switches 41, 42, the left-seat manual switches 39, 40, and the middle-seat manual switches 44, 45
and the changeover switches 38 and 43 mean the changeover switch 3
8 and 43 are set to the independent operation side, the position detection switch 15 is switched to an inoperative state in which the motor is not energized, and the manual switches 41 and 42 for the right seat, the manual switches 44 and 45 for the middle seat, and the manual switch for the left seat The left and right middle seats 2, 3, and 4 can be adjusted up and down independently by the switches 39 and 40, and when the changeover switch 43 is set to the linked operation side, the position detection switch 15 is switched to an operating state in which the motor can be energized, and the left and right middle seats 2, 3, and 4 are ，
When there is a vertical positional deviation between the left seat 4 and the middle seat 3, the positional deviation between the left seat 4, the middle seat 3, and the right seat 2 is detected based on the positional relationship between the position detection switch 15 and the position detection body 23. , the position detection switch 15 automatically energizes the middle seat motor 20b to correct the positional deviation of the middle seat 3 based on either the right seat 2 or the left seat 4, and the changeover switch 38 switches to the interlocking side to move the left seat to the left seat. The seat motor 20c is automatically energized to correct the positional deviation between either the left seat 4 or the right seat 2 based on the middle seat 3, and the motor 20c is positioned vertically between the left and right seats 2, 4 and the middle seat 3. When there is no shift, press manual switch 4 for the right seat.
When either the left or right seats 2, 4 or the middle seat 3 is moved up or down using the middle seat manual switches 44, 45 or the left seat manual switches 39, 40, the other seats will be moved up or down using the position detection switch. 15 so that all three seats can be moved up and down together.
Construct by relating and connecting each other.

In addition, in the figure, 51 is an interlocking rod.

(effect) Next, we will discuss the effect.

(In the case of a rear seat divided into left and right halves) The present invention has the above-described configuration, so that the changeover switch 3
When the switch 8 is manually switched to the independent operation side of position a in FIG. The motor 20a is energized, the worm gear 21 is rotated, and the gear 19 is rotated.
The screw rod 16 that rotates and is screwed into the gear 19
is moved forward, the rear shaft lever 6' is rotated via the arm 17, and the front shaft lever 6 is rotated via the interlocking lever 51, thereby rotating the arms 7, 7, 11, 11 upward. , the frame 8 is moved up, and the whole seat, so-called right seat 2 only, is moved up independently. Further, when the lower movement switch 42 is turned on, the motor 20
Power is applied to a, and only the entire right seat 2 is moved down independently. Further, when the up-movement switch 39 or the down-movement switch 40 of the left seat 4 is turned on, the left seat 4 is independently moved up or down in the same manner as described above.

Therefore, when the changeover switch 38 in FIG. 7 is switched to the temporary line position b, the position detection switch 15
is in an operating state in which the motor 20c can be energized, and since the vertical movement switches 39, 40 are not configured with a circuit, the left seat 4 does not move even if the vertical movement switches 39, 40 are operated.

However, when the upward movement switch 41 of the right seat 2 is turned on, the motor 20a is energized to move the right seat 2 upward, and the motor 20c of the left seat 4 is energized to move it together. That is, right seat 2
When the upper movement switch 41 is turned on, the position detection body 23 fixed to the right seat 2 rotates.
The state shown in FIG. 3 changes to the state shown in FIG. 4, and the detection roll 27 that had been fitted into the V-shaped cut groove 24 of the position detection body 23 comes off and rotates together with the support arm 30 around the shaft 31. The push button 28 of the upper position detection switch 25 is pressed with the side surface of the support arm 30 to turn it on. Therefore, the motor 20c is also energized, and the left seat 4 is also moved up. Contrary to the above, when the right seat 2 moves downward and the support arm 30 rotates downward as shown in FIG. 5, and the lower position detection switch 26 is turned on, the motor 20c is reversed and moved downward.

In FIG. 7, when the left and right seats 2 and 4 are vertically shifted relative to each other, the selector switch 38 is turned to b.
When switching to the side interlocking operation side, either the upper position detection switch 25 or the lower position detection switch 26 of the position detection switch 15 turns on immediately.
As described above, the left seat 4 is moved up and down until it is at the same height as the right seat 2 and either of the up and down position detections 25 and 26 is turned off.

Note that the right and left seats can naturally be reversed.

(In the case of three-part division as shown in Figs. 1 and 8) In the case of the embodiment shown in Fig. 8, the number of middle seats 3 is increased, and the operation is the same as described above, and the same effect is achieved. The standard seats differ as shown below.

When the contacts of the interlocking selector switches 38 and 43 are respectively switched to the independent operation side at position a shown by the solid line, an upward or downward current flows through each motor 20a, 20b, 20c independently. Seat 2, middle seat 3, and left seat 4 move up and down independently.

Next, when only the interlocking changeover switch 43 is switched to the interlocking side at position b indicated by the dotted line, the middle seat 3 corresponds to the left seat 4 as described above, and the right seat 2 is replaced by the same effect as when the seat is divided into two. The middle seat 3 moves up and down based on the standard, and the left seat 4 moves up and down independently.

Therefore, the interlocking changeover switch 38 is also
When switching to the position, if you move right seat 2 up,
The middle seat 3 moves up along with the right seat 2, and when the middle seat 3 moves up, the left seat 4 also moves up together with the middle seat 3.

Next, with the right seat 2, middle seat 3, and left seat 4 at different heights, the interlocking changeover switches 38 and 4 shown in FIG.
3 to position b, right seat 2 and middle seat 3
Switch 2 of position detection switch 15 between
5 or the switch 26 is immediately turned on, the motor 20b is energized, the middle seats 3 are aligned with the right seat 2 as a reference, and the position detection switch 15 between the middle seat 3 and the left seat 4 is turned on. Either the switch 25 or the switch 26 is immediately turned on, the motor 20c is energized, and the middle seat 3 and the left seat 4 are aligned with the right seat 2 as a reference.

Note that the reference seat may be any of the right seat 2, middle seat 3, and left seat 4.

(Effects) The present invention provides a motor 20 for the right seat that moves the right seat 2 and left seat 4 and the right seat 2 divided into left and right sides up and down.
a and the left seat motor 20 that moves the left seat 4 up and down.
c, a position detection body 23 provided on either one of the left and right seats 2, 4, a position detection switch 15 provided on the other, and right seat manual switches 41, 42 connected to the right seat motor 20a. and left seat manual switches 39, 40 connected to the left seat motor 20c, and a changeover switch 38 provided in one of the motor circuits, the position detection switch 15, the right seat manual switch 41,
42, the manual switches 39, 40 for the left seat, and the changeover switch 38 are as follows: a. When the changeover switch 38 is set to the independent operation side, the position detection switch 15 is switched to the inoperative state in which the motor is not energized, and the manual switch 38 for the right seat is switched to the inoperable state. The left and right seats 2 and 4 can be adjusted up and down independently by the switches 41 and 42 and the manual switches 39 and 40 for the left seat.b When the changeover switch 38 is set to the linked operation side, the position detection switch 15 is in an operating state in which the motor can be energized. If the left and right seats 2 and 4 are shifted vertically, the position detection switch 15 and the position detection body 23
The position detection switch 15 automatically energizes the other motor with one of the left and right seats 2 and 4 as a reference to correct the position shift. When one of the left and right seats 2, 4 is moved up or down using the manual switches 41, 42 for the right seat or the manual switches 39, 40 for the left seat when there is no vertical position shift, the other seat is moved in conjunction with the position detection switch 15. and a vertical adjustment device for a rear seat of a vehicle connected to each other so that they can be moved up and down together; a right seat motor 20a that moves the middle seat 2 up and down, a middle seat motor 20b that moves the middle seat 3 up and down, a left seat motor 20c that moves the left seat 4 up and down, and either the right seat 2 or the middle seat 3. a position detection body 23 provided in either one of the middle seat 3 or the left seat 4 and a position detection switch 15 provided in the other; and,
Right seat manual switches 41 and 42 connected to the right seat motor 20a and the middle seat motor 20
middle seat manual switches 44, 45 connected to b, left seat manual switches 39, 40 connected to the left seat motor 20c, and right seat motor 20.
a and changeover switches 38, 43 provided in the motor circuits of any two of the middle seat motor 20b and the left seat motor 20c, the position detection switch 15, the right seat manual switch 41, 42, and The left seat manual switches 39, 40, the middle seat manual switches 44, 45, and the changeover switches 38, 43 are as follows: a. When the changeover switches 38, 43 are set to the independent operation side, the position detection switch 15 does not energize the motor. The manual switches 41 and 42 for the right seat and the manual switch 44 for the middle seat are switched to the inactive state.
45 and the manual switches 39 and 40 for the left seats, the left and right middle seats 2, 3, and 4 can be adjusted up and down independently.b When the changeover switch 43 is set to the linked operation side, the position detection switch 15 is in an operating state in which the motor can be energized. If there is a vertical positional deviation between the left and right seats 2, 4 and the middle seat 3, the position detection switch 1
Detecting a positional shift between the left seat 4, the middle seat 3, and the right seat 2 based on the positional relationship between the position detector 5 and the position detection body 23,
The middle seat motor 2 is activated by the position detection switch 15.
0b to correct the misalignment of the middle seat 3 with reference to either the right seat 2 or the left seat 4, and the motor 20c for the left seat is automatically energized by switching the changeover switch 38 to the interlocking side. middle seat 3
Correct the misalignment between either the left seat 4 or the right seat 2 based on Manual switch for middle seats 44,4
5. When either the left or right seats 2, 4 or the middle seat 3 is moved up or down using either the left seat manual switch 39 or 40, the other seats are moved in conjunction with the position detection switch 15, and all three seats are moved up or down. This is a vertical adjustment device for the rear seat of a vehicle that is connected to each other so that they can move up and down together. (a) When the changeover switches 38 and 43 are switched to the independent operation side of (a), the position detection switch 1
5, 15 are inoperative, each manual switch 39, 40, 41, 42 can be operated independently, and the vertical position can be adjusted independently without requiring the consent of the passenger in the adjacent seat. This has the effect of widening the field of vision even for people who are short, such as children.

When the changeover switches 38 and 43 are switched to the linked operation side of b, the position detection switch 15 is activated, and each seated person adjusts up and down, and the right seat 2 and the left seat 4 (middle seat 3) are moved vertically relative to each other. Even when there is a misalignment, the position detection switch 15 automatically corrects the misalignment, allowing the left and right seats 2 and 4 (middle seat 3) to be aligned vertically in a single line without any troublesome operations. When loading, it can be loaded stably.

C. When the changeover switches 38 and 43 are switched to the b side, the position detection switch 15 is activated, and when the left and right seats 2 and 4 (middle seat 3) are not shifted vertically, when each manual switch is operated,
The left and right seats 2 and 4 (middle seat 3) can be moved up and down together, making it easy to adjust the up and down position when sitting alone in rear seat 1. Also, when loading luggage, it is possible to adjust the position accordingly. Space can be easily created.

This effect is achieved.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view, Figure 2 is an overall perspective view, Figure 3 is a front view of the position detection switch, and Figure 4 is a front view of the position detection switch.
5 are operating state diagrams of the position detection switch, FIG. 6 is a front view of the motor section, and FIGS. 7 and 8 are circuit diagrams. Explanation of the code, 1...Rear seat, 2...Right seat, 3...Middle seat,
4...Left seat, 5...Bearing, 6...Front axle lever, 6'...Rear axle lever,
7...Arm, 8...Frame, 9...Protrusion piece, 10...
Shaft, 11...Arm, 12...Protrusion piece, 13...Shaft, 14
...Crank, 15...Position detection switch, 16...Screw rod, 17...Protrusion, 18...Pin, 19...Gear, 2
0, 20a, 20b, 20c...Motor, 21...Worm gear, 22, 22'...Joint portion, 23...Position detection body, 24...Notch groove, 25, 26...Vertical position detection switch, 27...Detection roll, 28 , 29...push button, 30...support arm, 31...shaft, 32, 33...board, 34, 35...protrusion, 36...spring, 38...changeover switch, 39...upward movement switch, 40...downward movement switch, 41...top moving switch, 42...lower moving switch, 43...interlocking changeover switch, 44...upper moving switch, 45...lower moving switch, 51...interlocking rod.

Claims (1)

[Claims] 1. Right seat 2 and left seat 4 divided into left and right sides.
and a right seat motor 20a that moves the right seat 2 up and down, and a left seat motor 20c that moves the left seat 4 up and down.
, a position detection body 23 provided on either one of the left and right seats 2, 4, a position detection switch 15 provided on the other, and right seat manual switches 41, 42 connected to the right seat motor 20a. and a left seat manual switch 39, 40 connected to the left seat motor 20c, and a changeover switch 38 provided in one of the motor circuits, and the position detection switch 15 and the right seat manual switch 4.
1, 42, the manual switches 39, 40 for the left seat, and the changeover switch 38: a. When the changeover switch 38 is set to the independent operation side, the position detection switch 15 is switched to the inoperative state in which the motor is not energized; The left and right seats 2 and 4 can be adjusted up and down independently by the manual switches 41 and 42 for the left seat and the manual switches 39 and 40 for the left seat. When the left and right seats 2 and 4 are shifted vertically, the position detection switch 15 and the position detection body 23
The position detection switch 15 automatically energizes the other motor with one of the left and right seats 2 and 4 as a reference to correct the position shift. When one of the left and right seats 2, 4 is moved up or down using the manual switches 41, 42 for the right seat or the manual switches 39, 40 for the left seat when there is no vertical position shift, the other seat is moved in conjunction with the position detection switch 15. A vertical adjustment device for a rear seat of a vehicle that is connected to each other so that it can be moved up and down together. 2 The right seat 2, the middle seat 3, and the left seat 4 are divided into left and right sides, the right seat motor 20a moves the right seat 2 up and down, and the middle seat motor 20b and the left seat 4 move the middle seat 3 up and down. A motor 20c for the left seat that moves it up and down, a position detection body 23 provided on either one of the right seat 2 or the middle seat 3, a position detection switch 15 provided on the other, and the middle seat 3 or the left seat 4. A position detection body 23 provided on one of the two and a position detection switch 15 provided on the other.
, right seat manual switches 41, 42 connected to the right seat motor 20a, and middle seat manual switches 44, 4 connected to the middle seat motor 20b.
5 and the left seat manual switches 39 and 40 connected to the left seat motor 20c, the right seat motor 20a, the middle seat motor 20b, and the left seat motor 20.
c, the position detection switch 15 and the right seat manual switch 41, 42.
and the manual switches 39, 40 for the left seat, the manual switches 44, 45 for the middle seat, and the changeover switches 38, 43.
a. When the changeover switches 38 and 43 are set to the independent operation side, the position detection switch 15 is switched to an inoperative state in which the motor is not energized, and the manual switches 41 and 42 for the right seat, the manual switch 44 for the middle seat,
45 and the manual switches 39 and 40 for the left seats, the left and right middle seats 2, 3, and 4 can be adjusted up and down independently.b When the changeover switch 43 is set to the linked operation side, the position detection switch 15 is in an operating state in which the motor can be energized. If there is a vertical positional deviation between the left and right seats 2, 4 and the middle seat 3, the position detection switch 1
Detecting a positional shift between the left seat 4, the middle seat 3, and the right seat 2 based on the positional relationship between the position detector 5 and the position detection body 23,
The middle seat motor 2 is activated by the position detection switch 15.
0b to correct the misalignment of the middle seat 3 with reference to either the right seat 2 or the left seat 4, and the motor 20c for the left seat is automatically energized by switching the changeover switch 38 to the interlocking side. middle seat 3
Correct the misalignment between either the left seat 4 or the right seat 2 based on Manual switch for middle seats 44,4
5. When either the left or right seats 2, 4 or the middle seat 3 is moved up or down using either the left seat manual switch 39 or 40, the other seats are moved in conjunction with the position detection switch 15, and all three seats are moved up or down. A vertical adjustment device for the rear seat of a vehicle that is connected to each other so that they can move up and down together.