JPH10157619A - Seat direction changing device for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitatee seat directing work by which all the seats are directed in one direction for shuttle service or cleaning by independently operating locking/unlocking of a locking mechanism arranged in each rotary seat, which is supported rotationally to a floor face, by means of a centralized control system. SOLUTION: When a signal complying with turning on of an upward lock releasing switch 61 (or a downward lock releasing switch 62) is outputted from a centralized control unit 54, a seat side control unit 64 in each seat detects the direction of the seat on the basis of detection signals from proximity sensors 39a, 39b and detects whether the seat takes a standard attitude or not on the basis of detection signals from standard attitude detection sensors 41, 42. If the seat is directed in the up direction (in the down direction), a motor actuator 25 in the seat is not operated and a motor actuator 25 of a seat, which is not directed in the up (down) direction and in the standard attitude, alone is operated so as to release the lock.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train seat direction changing device for rotating a seat provided on a train to change its direction with respect to a traveling direction.

[0002]

2. Description of the Related Art A large number of seats arranged in a row in a train are rotatably supported on legs fixed to the floor, and usually, at the start of traveling, they face in the traveling direction. Rotated and fixed. Each of the seats set in this way is appropriately rotated during traveling according to the preference of a passenger sitting on the seat, and thus some seats are turned in the opposite direction to the traveling direction. When cleaning a train equipped with a large number of seats having different orientations after driving, all seats not facing the traveling direction during the next driving are rotated and reset.

[0003] As a seat direction changing device used at the time of seat setting, an electric simultaneous rotation system of a centralized operation type in which the seats are simultaneously rotated electrically is known. In this electric simultaneous rotation system, each seat is provided with a rotation lock release mechanism and a geared motor. This system unlocks all seats at the same time when a predetermined switch is operated, and rotates the seat by a geared motor for each seat, in order to make it easy to change the direction of the seat when turning back and shorten the cleaning time. It has become. Also, in this system, if the seated person (user) normally unlocks by depressing the unlock pedal provided individually for each seat,
The seat can be freely rotated by hand in either direction of travel.

However, in such a conventional electric seat direction changing apparatus, all the seats are unlocked when the switch is operated, so that the seats which are already oriented in a desired direction are unlocked. It was necessary to re-lock the seat. Further, in this seat direction changing device, since a geared motor and parts for driving the geared motor are mounted for each seat, the total weight of the seat is heavy, and there are also problems such as an increase in cost and complexity of the mechanism.

On the other hand, there is no drive means such as a rotation lock release mechanism and a geared motor by a centralized operation method,
There is also a manual rotary seat having a foot-operated rotary unlocking mechanism for each seat. In the foot-operated rotation lock release mechanism, when the pedal is depressed, the rotation lock is released and the wire is pulled, and by this wire,
The lever of the gas spring that tilts the backslide frame is pulled and the push rod of the gas spring is pushed,
The backstrip goes back to neutral when in the free state. Therefore, in such a conventional foot-operated rotary unlocking mechanism, the seat cannot be changed unless the unlocking pedal is depressed for each seat and the backslider frame is set to the neutral position. It took a lot of time.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in a conventional train seat rotating apparatus, to facilitate the work of turning all the seats in a fixed direction at the time of turn-back operation and cleaning, and to shorten the working time. It is an object of the present invention to provide a train seat direction changing device capable of simplifying the cost and reducing the cost.

[0007]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a number of rotating seats arranged in a row in a train and rotatably supported with respect to the floor to change its orientation; A lock mechanism provided for each of the rotating seats for locking the rotation of the rotating seats; and a centralized management system capable of individually and collectively operating the locking and unlocking of the locking mechanisms of each of the rotating seats. Features.

[0008] According to the above configuration, the geared motor for each seat is not required as in the conventional electric type seat direction changing device, so that the total weight of the seat is reduced, and the lock is released by depressing the pedal for each seat. Does not require time and effort. In addition, since the locking and unlocking of the lock mechanism can be individually operated, for example, it is possible to unlock only the seats that are not oriented in a desired direction, instead of unlocking all the seats at once as in the conventional device. Therefore, since it is not necessary to re-lock the seat already facing the desired direction, the work at the time of turning back operation and the like is further facilitated.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. A large number of seats (rotating seats) 17 provided in the train seat direction changing apparatus to which the present invention is applied are arranged in rows in the train. As shown in FIGS. 1 to 3, a horizontal underframe 15 rotatably supported by a footrest 13 fixed to the floor surface 12 has a vertical shaft 16 (FIGS. 3, 4, 8, and 9). FIG.
The seat 17 is configured to be rotatable about the shaft 16.

Each seat 17 is provided in a pair on the left and right sides in the traveling direction of the train, and the pair of seats 17 are provided on both sides of a large number of passages. Each seat 17 has a seat cushion 19, a seat back (back) 20 that can be tilted and adjusted with respect to the seat cushion 19, a leg rest 21, and an armrest 22. The reference posture shown by a solid line in FIG. , It is configured to be able to rotate without contacting the surrounding wall W or the like. In the central part of the pair of seats 17,
The rotating disk 30 is fixed. The rotating disk 30 is formed with a pair of engagement notches 30a located at rotationally symmetric positions about the shaft 16 (FIG. 4). Seat 17
The lock pin 26a (FIGS. 4 and 9) is engaged with one or the other of the pair of
It is locked (fixed) at two positions where the 0 ° direction is inverted.

FIG. 8 shows a lock mechanism provided for each seat 17 for locking the seat 17 at a rotational position in one direction or the other direction in the traveling direction of the train. As shown in the figure, the lock mechanism is provided with a shaft 1 which is a rotation center of the seat 17.
6, a motor pedal 25 which is turned clockwise and counterclockwise in FIG. 9 by the retraction and pushing force of the motor actuator 25, and a motor pedal 25 between the motor actuator 25 and the pedal 26. Has a link mechanism 32 provided with links 32a and 32b.

The foot pedal 26 is rotatably supported around a pivot point 29 fixed to the footrest 13, and is always urged to rotate counterclockwise in FIG. Has the lock pin 26a. A link 32b is rotatably supported on the rotation fulcrum 29. This link 32b
A forked portion 32c formed at one end of the pin is engaged with an engaging pin 27 fixed between the lock pin 26a and the rotation fulcrum 29 of the foot pedal 26, and a pin 32d fixed at the other end.
Are engaged with a long hole 32e formed at one end of the link 32a. The other end of the link 32a is unlocked when the motor actuator 25 is retracted (leftward in FIG. 9).
Is engaged with a link 25a that moves linearly. Therefore,
When the motor actuator 25 retreats in the unlocking direction, the link 32b is turned clockwise via the links 25a and 32a, the foot pedal 26 is turned in the same direction, and the lock pin 26a is turned on the rotating disk 30. Notch 30a
Break away from

In this embodiment, the motor actuator 25 (electromagnetic actuator having a solenoid) is used as a drive source of the lock release mechanism. However, the present invention uses a motor rotation as a drive source of the lock release mechanism. May be transmitted to the link 25a via the reduction gear train, or another mechanism may be used. Further, the foot pedal 26 located below the seat can be operated by directly stepping on the foot when unlocking by electric power becomes impossible. In this case, the pin 32d of the link 32b that rotates together with the foot pedal 26 moves idly in the long hole 32e.

As shown in FIGS. 3 and 8, a stopper plate 37 is fixed to the rotating disk 30 at a position away from the shaft 16 as a center of rotation by a predetermined length (see FIGS. 4 and 9). ). The stopper plate 37 is formed in a “U” shape in plan view, and its forked portion is positioned toward the outer diameter side of the rotating disk 30. On the underframe 15 side, the pair of seats 17 is not at the passage side but at the position facing the front (front of the train) or the back (rear of the train), and the stopper plate 37 is brought into contact with the rotation position of the seat 17. Stopper members 36a and 36b for regulating the pressure are fixed. Proximity sensors (direction detection sensors) 39a and 39 are provided on the underframe 15 at positions facing the stopper members 36a and 36b, respectively.
b is provided. Each of the proximity sensors 39a and 39b is a stopper plate 3 which approaches when the seat 17 faces the front as shown in FIG.
7 is detected, and the detection signal is transmitted to the seat-side control unit 64 (FIG. 1).
Output to 1). Then, the seat-side control unit 64 detects the rotational position of the seat 17 based on the detection signal.

Each pair of seats 17 is provided with reference attitude detection sensors 41 and 42 for detecting the initial positions of the seat back 20 and the leg rest 21, respectively.
As shown in FIG. 6, the reference posture detection sensor 41 returns the inclination angle of the frame 40 supporting the seat back 20 rotatably with respect to the frame 15 to the reference posture (solid line position in FIG. 6). When the end portion 4 of the frame 40 is
This is a proximity sensor that detects 0a and outputs a signal. Reference numeral 44 in the figure denotes a rotation pin that rotatably supports the frame 40 on the underframe 15. Further, the reference posture detection sensor 42 is fixed to the underframe 15, and as shown in FIG. 7, when the inclination angle of the leg rest 21 with respect to the underframe 15 Is returned to the reference posture (solid line position in the figure) where no interference (collision) occurs. The reference posture detection sensor 42 of the present embodiment includes:
Sensor sensing plate 4 fixed to the side of link 43 that moves in the left-right direction in FIG.
3d is a proximity sensor that detects the proximity and outputs a signal. Therefore, the reference attitude detection sensors 41 and 42
When the frame 40 and the link 43 that have returned to the reference position are detected, the seat-side control unit 64 detects the reference posture of the seat 17 and the reference posture detection sensors 41 and 42 detect the frame 4 and the link 43.
0, when the link 43 is not detected, the seat-side control unit 64
A user-set posture different from the reference posture of the seat 17 is detected.

The reference attitude and the user-set attitude depend on how the reference attitude detection sensors 41 and 42 are arranged. That is, as long as the seat 17 can be rotated without contacting the wall W or the like, the reference posture does not necessarily have to be a complete posture as shown by a solid line in FIG. The reference posture detection sensor 42 may be arranged so as to detect the rest 21 as a reference posture. The same applies to the reference posture detection sensor 41.

Each seat 17 has an individual operation switch (lock operation switch) 45 which operates only a locking mechanism of the seat 17 and operates separately from a centralized management system described later.
45a (FIG. 12) is provided. The individual operation switches 45 and 45a are, as shown in FIG. 12, an individual operation section 33a provided at a position where a seated user can manually operate.
(See FIG. 2), the individual operation switch 4
In addition to 5, 45a, a display sticker 34 indicating an operation procedure;
It has rotatable display lamps 46 and 46a. After the individual operation switches 45, 45a are operated, the rotatable display lamps 46, 46a are turned off until the seat 17 can be rotated. When the rotatable display lamps 46, 46a become rotatable, they are lit to indicate this. The individual operation switch 45 outputs a signal to the seat-side control unit 64 to allow the lock mechanism to be unlocked only when the reference attitude detection sensors 41 and 42 are detecting the reference attitude. Further, when the centralized operation switch on the centralized management system is operated, the seat-side control unit 64 provided in each seat 17 operates the lock mechanism when the seatback 20 and the legrest 21 return to the initial position (reference posture). It has a function to release the lock.

Further, each seat 17 has left and right leg rest motors 69, 70, left and right reclining motors 68, 6
9 for the passenger to individually operate the leg rest operation switches (left and right leg rest movement point switches 45b,
45c, left and right leg rest origin switches 45d, 45
e), individual operation unit 3 including reclining operation switches (left and right reclining origin switches 46b and 46c, and left and right reclining point switches 46d and 46e)
3a is provided (see FIG. 13).

Next, the locking and unlocking of the locking mechanism of each seat 17 can be individually and collectively operated, so that the direction of each seat 17 can be easily changed at the time of turning back, and the cleaning time can be shortened. A centralized management system that can do this will be described.

This centralized management system includes a proximity sensor 39.
a, a function of unlocking only the lock mechanism of the seat 17 facing in a predetermined direction by using the outputs of a and 39b, and
It has a function to permit unlocking of the lock mechanism only when the reference attitude detection sensors 41 and 42 are detecting the reference attitude.

FIG. 10 shows an operation board 47 for operating such a centralized management system. This operation board 47
It is installed in places where passengers cannot touch, such as the cabin. In the figure, an operation board 47 includes a control power switch 49 for turning on / off the control power, a drive power switch 50 for turning on / off the drive power, a power lamp 56 for notifying the power on state, and an abnormal lamp for notifying the abnormality of the system. 59, an upward lock release switch 61 used when the respective seats 17 are directed in the upward direction, a downward lock release switch 62 used when the respective seats 17 are directed downward, and these switches upward lock release switch 61 and downward lock release switch 62. After the is operated, there is a cancel switch 63 for canceling the operation.

FIG. 11 shows a control block diagram in the present centralized management system. In the figure, the central control unit 54
A control power switch 49, a drive power switch 50, an up lock release switch 61, a down lock release switch 62, and a cancel switch 63 are connected to the input ports of the power supply lamp 56, the up lamp 57, the down lamp 58, and the output port. The abnormal lamp 59 is connected. A large number of seat-side control units 64 provided for each seat 17 are connected to the centralized-side control unit 54. The up lamp 57 and the down lamp 58 are provided on the back surfaces of the button covers of the up lock release switch 61 and the down lock release switch 62, respectively, and are turned on when these switches 61 and 62 are turned on.

The individual operation switches 45 and 45a and the leg rest operation switches (left and right leg rest movement point switches 45b and 45c,
Left and right leg rest origin switches 45d and 45e), reclining operation switches (left and right reclining origin switches 46b and 46c, left and right reclining movement point switches 46d and 46e), proximity sensors 39a and 39b,
Reference attitude detection sensors 41 and 42 and central control unit 54
Input line Li is connected to the right reclining motor 67 and the left reclining motor 6 to the output port.
8, right leg rest motor 69, left leg rest motor 70, motor actuator 25, rotatable indicator light 4
6, 46a and an output line Lo to the central control unit 54
Is connected. The right reclining motor 67,
Left reclining motor 68, right leg rest motor 6
9 and the left leg rest motor 70 are shown in FIGS.
7 and the like are not particularly shown. The right reclining motor 67 and the right leg rest motor 69 are provided in the seat 17 on the right side (upper side in the figure) in the train traveling direction (left side in FIG. 3) in FIG.
8 and the left leg rest motor 70 are provided on the seat 17 on the left side (the lower side in the figure) in the train traveling direction. The motor 67 and the motor 69 transmit rotation to the legrest 21 and the seat cushion 20 of the right seat 17 by a mechanism not shown, respectively, and the motor 68 and the motor 70 transmit the rotation to the legrest 2 of the left seat 17 by a mechanism not shown.
1 and the seat cushion 20 respectively.

The seat-side control unit 64 of each seat 17 includes an up lock release switch 61 (or a down lock release switch 6).
When 2) is turned on and a corresponding signal is output from the centralized control unit 54, the direction of the seat 17 is detected based on the detection signals of the proximity sensors 39a and 39b, and the reference posture detection sensors 41 and 42 The seat 1 based on the detection signal
It is detected whether or not the posture of No. 7 is the reference posture. As a result, if the seat 17 is facing upward (or downward), the motor actuator 25 of the seat 17 is not actuated, and the motor is turned on only when the seat 17 is in the reference posture without facing upward (or downward). The lock is released by operating the actuator 25. If the seat 17 is not in the reference posture, the motor actuator 25 is not operated.
When the seat 17 is not in the reference posture,
The seat-side control unit 64 outputs a drive signal to the right reclining motor 67 (or the left reclining motor 68) and the right leg rest motor 69 (or the left leg rest motor 70) to move the seat cushion 19 and the seat back 20 to the initial position. The seat 17 is rotated to return the seat 17 to the reference posture, and then the motor actuator 25 is driven to release the lock.

When the individual operation switches 45 and 45a of the individual operation section 33 are turned on by the user or the like, the seat side control section 64 operates similarly to the operation of the up lock release switch 61 and the down lock release switch 62. In this case, regardless of the orientation of the seat 17 so as to suit the user's preference, in this case, if the seat 17 is in the reference posture, the motor actuator 25
Drive. Therefore, if the rotatable display lamp 46 is turned on after pressing the individual operation switches 45 and 45a, the seat 1
7 can be rotated in a desired direction. in this case,
When the seat 17 is not in the reference posture, the seat cushion 19 and the seat back 20 are rotated to the initial positions by the output from the seat-side control unit 64, and after the seat cushion 19 and the seat back are in the reference posture, the motor actuator 25 is driven. The lock is released.

Up lock release switch 61 (or down lock release switch 62), individual operation switches 45, 45
The seat 17 unlocked by the operation a can be manually rotated. Then, when the proximity sensor 39a (or the proximity sensor 39b) outside the designated direction is turned off, the motor actuator 25 stops. As a result, the lock pin 26a engages with the engagement notch 30a, and the seat 17 is locked in its rotational position.

The seat-side control unit 64 is provided with a timer which starts counting from the time when the motor actuator 25 is driven and unlocked. When the count by this timer is up, the unlocking is stopped and the lock pin is stopped. Means are provided for releasing 26a to a state in which it can be engaged with the engagement notch 30a and for turning off the lit rotatable display lamp 46. The means provided in the seat-side control unit 64 starts the blinking of the rotatable display lamp 46 when the individual operation switches 45 and 45a are turned on, and turns on the lamp 46 when the rotation of the seat 17 becomes possible. The lamp 46 is turned off when the change of the orientation of the seat 17 is completed.

An up lock release switch 61 (or a down lock release switch 62), an individual operation switch 45,
When the seat 17 is unlocked after the seat 17 returns to the reference position during the operation of the seat 45a, the leg rest 21 and the seat back 20
Relative to the leg rest 2 by the reference posture detection sensors 41 and 42,
1. If the seat back 20 is configured so as to be unlocked when it reaches a rotation position that does not interfere with the wall W or the like,
The time required for seat rotation operation can be reduced. Furthermore, if the leg rest 21 and the seat back 20 are simultaneously rotated, the time required to return to the reference posture can be further reduced.

Next, the operation of the train seat direction changing apparatus will be described with reference to flowcharts shown in FIGS.

FIG. 14 shows the main flow of the centralized management system. This main flow is executed when the control power switch 49 and the drive power switch 50 are turned on, the vehicle is stopped, and the power is turned on. When entering the main flow, first, it is checked whether or not the cancel switch 63 is turned on (S1). If the cancel switch 63 is turned on, the process proceeds to S3, a signal for canceling the operation of each switch is output, the up lamp 57, the down lamp 58, and the abnormal lamp 59 are turned off, and the corresponding storage is reset (S5). Return to S1. If the cancel switch 63 has not been turned on, the process proceeds to S4, where it is checked whether the up switch 61 has been turned on and whether or not this switch 61 has been turned on is stored. This storage is set when the seat 17 has not returned to the reference posture when the up switch 61 is turned on.

In step S4, if the up switch 61 is turned on or if the up switch 61 is turned on, the flow advances to step S6 to check whether or not the up direction designation signal is being output. In step S7, the down switch 62 is turned on or the down switch 6
It is checked whether or not it is stored by turning on 2.
This storage is set when the seat 17 has not returned to the reference posture when the down switch 62 is turned on.

In S6, if the up direction designation signal is being output, the process proceeds to S8, where it is checked whether the rotation operation of the seat 17 has been completed. If not, the up lamp 57 is turned on and the memory is set. Then, a state corresponding to the up direction designation is set (S9), and the process proceeds to S10 to output a signal corresponding to the up direction designation. In S8, it is checked whether the rotation operation of the seat 17 has been completed. If completed, the process jumps to S5, and if not completed, the process proceeds to S11 to check whether an abnormality has occurred. As a result, if an abnormality has occurred, the abnormality lamp 59 is turned on to notify the fact, and otherwise, the process returns to S1.

In step S7, if the down switch 62 is on or if the on state of the switch 62 is stored,
Proceeding to 13, it is checked whether or not a down direction designation signal is being output, and if not, the process returns to S1. In S13, it is checked whether or not a signal corresponding to the designation of the down direction is output. If the signal is being output, the process proceeds to S8. If not, the down lamp 58 is turned on and the memory is set to set the down direction. The corresponding state is set (S14), and the process proceeds to S15 to output a signal according to the designation in the down direction.

FIGS. 15 to 17 show the flow executed by the seat-side control unit 64 for each seat 17. In this processing, the origin side operation is an operation of moving the left and right leg rests and the left and right seat backs to the origin side. This is an operation of moving.

When the power is turned on, first, the state of each of the cancel switch 63, the up switch 61, the down switch 62, the right reclining origin switch 46c, and the right reclining point switch 46e is checked (S1).
6 to S19, S21). If the cancel switch 63 is ON, the outputs of the left and right reclining origin side operations are reset in S74 to S78, the outputs of the left and right leg rest origin side operations are reset, and the output of the lock pin release is reset. If the lock is being released, stop the operation,
If the lock release memory has been set, it is reset, and further, the abnormality storage is reset, and the process returns to S16.

In S17 and S18, if the up switch 61 or the down switch 62 is turned on, the process proceeds to S39,
Whether a predetermined cycle in control (a predetermined time required for completing a series of operations) has exceeded, whether the left and right seatbacks 20 are at the origin end (initial position), whether the left and right leg rests 21 are at the origin end (initial position). (S41, S44). If the cycle is over in the check at S39, the output of the left and right reclining origin side operation is reset (stopped) (S4).
0), reset (stop) the output of the left and right leg rest origin side operation (S42), and reset the memory of the abnormality (S4).
3) Return to S16. In S41, if the left and right seat backs 20 are not at the origin end, the right and left reclining motor 6 outputs
7. Drive the left reclining motor 68 (S45),
It returns to S16. In S44, the left and right leg rests 2
If 1 is not at the origin end, the right and left leg rest origin side operation is output, and the right leg rest motor 69 and the left leg rest motor 70 are driven in the direction of returning the left and right leg rests 21 to the origin (S47). It returns to S16.

Further, if it is determined in the check of S44 that the left and right leg rests 21 are at the origin end,
It is checked whether the up switch 61 is turned on (S46). When the up switch 61 is turned on, S48
To the seat 1 from the output of the proximity sensor 39a (39b).
It is checked whether or not 7 is located at the up end. If it is not located at the up end, the process proceeds to S49 and the seat 17 is located at the down end based on the output of the proximity sensor 39a (39b). Check if it is. In S48 and S49, if the seat 17 is located at the upward end or the downward end, it is considered that the rotation of the seat has been completed and a completion signal is output (S50), and the process returns to S16. If it is determined in S48 that the seat back 20 is not located at the up end,
After jumping to 99 and outputting the lock pin release operation,
The rotatable display lamp 46 is turned on (S100). Then, it is checked whether or not the designated time required for the seat rotation, which has been counted, has elapsed. If the designated time has elapsed, the output of the lock pin releasing operation is reset to reset the memory during unlocking, and the rotatable display lamp 46 is set. After turning off S16
Return to (S101, S102, S104, S105).
In S101, if the designated time required for seat rotation has not elapsed, it is further checked whether or not the seat 17 has been rotated. If the seat 17 has been rotated, the process proceeds to S102, and if not, the process returns to S16.

S19 to S28 are mainly for the pair of left and right seats 1
7 relates to the check processing of the right seat back 20. In S19, the right reclining origin switch 4
If the switch 6c is ON, it is checked whether or not the lock is being released by the lock release mechanism (S20). If the lock is being released, the process proceeds to S56, where the storage of the lock release stop is set, and the lock is being released. If not, it is checked whether the seat back 20 of the right seat 17 has returned to the initial position (S26). As a result, if the seat back 20 has returned to the initial position, the right reclining origin side operation is reset (S27). Otherwise, the right reclining origin side operation is output (S28), and the process proceeds to S29. If the right reclining movement point switch 46e is turned on in S21, it is checked whether or not the lock is released (S2).
2) If the lock is being released, the process proceeds to S56 to set the storage of the lock release stop, and if not, it is checked whether or not the moving point side operation has cycled over (S23).
The cycle is a time longer than the normal time required for the seat back 20 to move from the initial position to the most inclined position, and when this cycle is over, it can be regarded as abnormal. If the cycle is over, the right reclining movement point side operation is reset (S24), and the process proceeds to S29. If not, the right reclining movement point side operation is output (S24).
25) Go to S29.

Steps S29 to S38 mainly relate to checking the seat back 20 of the left seat 17. If the left reclining origin switch 46b is turned on in S29, it is further checked whether or not the lock is unlocked (S30). If the lock is unlocked, the flow proceeds to S56 to set the memory of the lock release stop, and the lock is unlocked. If not, it is checked whether the seat back 20 of the left seat 17 has returned to the initial position (S32). As a result, if the seat back 20 has returned to the initial position, the left reclining origin side operation is reset and the process proceeds to S52 (S33). Otherwise, the left reclining origin side operation is output (the left reclining motor 68 is started ( (Initial position) direction drive) (S34) S
Go to 52. In S31, if the left reclining movement point switch is ON, it is checked whether or not the lock is being released (S35). If the lock is being released, the process proceeds to S56, otherwise, it is determined whether or not the cycle is over. Check (S36). As a result, if the cycle is over, the left reclining moving point side operation is reset (S38).
The process proceeds to S52, and if not, a left reclining moving point side operation is output (S37), and the process proceeds to S52.

S52 to S55, S57 to S59, S61
S63 mainly relates to the check of the leg rest 21 of the right seat 17. In step S52, the state of the right leg rest origin switch 45e is detected. If the switch 45e is turned on, it is further checked in step S53 whether or not the lock is released. If not, the state of the right leg rest movement point switch 45c is checked. (S54). If the lock is being released in S53, the process jumps to S56, otherwise, S61.
To check if the right leg rest 21 is at the origin end (initial position). As a result, if the right leg rest 21 is at the initial position, the origin operation of the right leg rest is reset (S62), and if not, the origin operation of the right leg rest is set (S63), and the process proceeds to S60. If the right leg rest moving point switch 45c is turned on in S54, it is further checked in S55 whether or not the lock is being released.
Otherwise, proceed to S60. If the lock is being released in S55, the process proceeds to S56, otherwise, it is checked in S57 whether the operation on the moving point side has cycled over, and if the cycle has been over, the operation on the right leg rest operation point side is reset (S58). ) Proceeding to S60, otherwise set the right leg rest moving point side operation (S59) and proceed to S60.

Steps S60 and S64 to S72 mainly relate to checking the leg rest 21 of the left seat 17. In step S60, the state of the left leg rest origin switch 45b is detected. If this switch 45b is turned on, it is further checked in step S64 whether or not the lock is released. If not, the state of the left leg rest moving point switch 45b is checked. (S6
8). If the lock is being released in S64, the process jumps to S56, otherwise, the left leg rest 21 is released in S65.
Check if is at the origin end (initial position). As a result, if the left leg rest 21 is at the initial position, the origin operation of the left leg rest is reset (S66), and the process proceeds to S73. Otherwise, the origin operation of the left leg rest is set (S67), and the process proceeds to S73. . In S68,
If the left leg rest moving point switch 45b is turned on, it is further checked in S69 whether or not the lock is being unlocked, and if not, the flow proceeds to S73. If the lock is being released in S69, the process proceeds to S56, and if not, it is checked in S70 whether or not the moving point side operation has cycled over. If the cycle is over, the left leg rest moving point side operation is reset (S71). ) Proceed to S73, otherwise, set the left leg rest moving point side operation (S72) and proceed to S73. S
At 73, it is checked whether or not to stop unlocking,
If the lock release is to be stopped, the process proceeds to S74; otherwise, the process proceeds to S79.

S79 to S100 are mainly for the left and right seats 17
The state of the seat back 20 and the leg rest 21 are checked. In S79, it is checked whether or not the lock is being released. "Unlocking" is due to a simultaneous command from the central control means. During the release of the lock, the individual seat backs 20 release the individual operation switches (the lock release switches 45a and 45b, the reclining operation switches 46b,
46c, 46d, 46e, leg rest operation switch 4
In order to enable the use of 5a, 45b, 45c, 45d, it is checked whether or not the lock release switches 45, 45a are turned on (S80, S81). If the lock release switches 45 and 45a are turned on in S80, the process jumps to S74 to reset the origin side operation of the seat back 20 and the leg rest 21 of the left and right seats 17, and reset the memory during the lock release (S77). Lock release switch 45, 4
If 5a is not turned on, the seat back 20 of the right seat 17
Is checked at the initial position (S84). S
At 84, if the seat back 20 of the right seat 17 is at the initial position, the right reclining origin side operation is reset (S8).
5) Proceed to S87, otherwise set the right recline origin side operation (S86) and proceed to S90. S87
Then, it is checked whether or not the leg rest 21 of the right seat 17 is at the initial position. If the leg rest 21 is at the initial position, the origin operation on the right leg rest is reset (S88), and the process proceeds to S90. The origin side operation is set (S89), and the process proceeds to S90. If the unlock switches 45 and 45a are turned on in S81, the memory for unlocking is set, and the display lamps for unlocking (rotatable display lamps 46 and 46a) blink (S82 and S83).
The process proceeds to S4 and returns to S16 unless the lock release switches 45 and 45a are turned on.

At S90, the seat back 20 of the left seat 17
Is in the initial position, the left reclining origin side operation is reset (S91), and the process proceeds to S93. Otherwise, the left reclining origin side operation is set (S92), S96.
Proceed to. In S93, it is checked whether or not the leg rest 21 of the left seat 17 is at the initial position, and if it is in the initial position, the operation of the left leg rest origin side is reset (S94).
No. 6, otherwise set the left leg rest origin side operation (S95) and proceed to S96.

In S96, it is checked whether the seat backs 20 of the left and right seats 17 are both at the initial position.
At 97, it is checked whether the leg rests 21 of the left and right seats 17 are both at the initial position. If at least one of the seat backs 20 of the left and right seats 17 is not at the initial position, or if at least one of the leg rests 21 of the left and right seats 17 is not at the initial position, S98 is further performed.
Then, it is checked whether or not a predetermined control cycle has been exceeded. As a result, if the predetermined cycle is exceeded, S
The process returns to S16 via 74 to S78, and otherwise returns directly to S16. In addition, the seat back 20 of the left and right seats 17
When both the leg rest 21 and the leg rest 21 are at the initial positions, the lock pin release signal is output, and then the rotatable display lamp 4
6, 46a are turned on (S99, S100), and it is checked whether a predetermined time required for seat rotation has elapsed.
Then, when the predetermined time has elapsed, the lock pin release output (S102), and the memory during the lock release is reset (S1).
04), after turning off the rotatable display lamp 46 (S105), the process returns to S16. If the predetermined time has not elapsed, the direction detecting sensor 39 determines whether or not the seat 17 is further rotated.
Check at a and 39b. If rotated, go to S102, otherwise return to S16.

As described above, according to the train seat direction changing apparatus to which the present invention is applied, if the central control buttons (up and down lock release switches 61 and 62) are pressed, the lock release pedal does not have to be depressed. Since the seats can be made to be rotatable, the cleaning staff can simultaneously rotate each seat 17 located on the left and right across the passage with both hands while walking, when aligning the orientation of the seats during the return driving. . This has made it possible to significantly reduce the time.
Further, when the user attempts to change the direction of the seat 17 on which the user is sitting, by operating the individual operation switches 45 and 45a, after the rotatable display lamps 46 and 46a are turned on, the lock release pedal is not depressed. Also, the seat 17 can be rotated. Furthermore, when the centralized control system or the individual operation switches 45 and 45a are operated, even if the leg rest 21 and the seat back 20 are located at positions where they interfere with the wall W or the like during rotation, these leg rests 21 and
Unless the seat back 20 returns to a position where it does not interfere with the wall W or the like, the lock is not released. Therefore, there is no fear that the seat 17 is accidentally rotated and brought into contact with the wall W.

[0046]

As described above, according to the present invention, the work of directing all the seats in a fixed direction during the turn-back operation and the cleaning is facilitated, the work time is shortened, the structure is simplified and the cost is reduced. It is possible to provide a train seat direction changing device capable of performing the above.

[Brief description of the drawings]

FIG. 1 is a front view showing a pair of left and right seats provided in a train seat direction changing apparatus to which the present invention is applied.

FIG. 2 is a side view of the seat.

FIG. 3 is a plan view of the seat.

FIG. 4 is a side view showing a main part of a lock mechanism provided in the seat.

FIG. 5 is a plan view showing a main part of a lock mechanism provided in the seat.

FIG. 6 is a side view showing a reference posture and the like of a seat back provided in the seat.

FIG. 7 is a side view showing a reference posture and the like of a leg rest provided in the seat.

FIG. 8 is a plan view showing a main part of a lock mechanism provided in the seat.

FIG. 9 is a partially cutaway side view showing a main part of a lock mechanism provided in the seat.

FIG. 10 is a front view showing an operation board for a centralized management system provided in the train seat direction changing apparatus.

FIG. 11 is a block diagram showing a control system used for the train seat direction changing device.

FIG. 12 is an enlarged view showing an individual operation unit provided in each seat.

FIG. 13 is a view showing a leg rest and a reclining operation unit provided in each seat.

FIG. 14 is a flowchart for explaining the operation of the train seat direction changing apparatus on the central management side.

FIG. 15 is a flowchart for explaining the operation of the train seat direction changing apparatus on each seat side.

FIG. 16 is a flowchart for explaining the operation of each seat side of the train seat direction changing apparatus.

FIG. 17 is a flowchart for explaining the operation of the train seat direction changing apparatus on each seat side.

FIG. 18 is a flowchart for explaining the operation of the train seat direction changing apparatus on each seat side.

FIG. 19 is a flowchart for explaining the operation of the train seat direction changing apparatus on each seat side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 12 Vehicle floor 13 Leg base 15 Underframe 16 Axis 17 Seat (rotary seat) 19 Seat cushion 20 Seat back 21 Leg rest 26 Foot pedal 26a Lock pin 30 Rotating disk 30a Engagement notch 33 33a Individual operation part 39a 39b Proximity Sensor (direction detection sensor) 41 42 Reference attitude detection sensor 45 45a Individual operation switch (lock operation switch) 47 Operation board 54 Centralized side control unit 61 Up lock release switch 62 Down lock release switch 63 Cancel switch 64 Seat side control unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shigeru Kitayama 1-4-1 Meieki Station, Nakamura-ku, Nagoya-shi, Aichi Prefecture Inside Tokai Railway Company (72) Inventor Hidefumi Yoshida 2-Kirihara-cho, Fujisawa-shi, Kanagawa Prefecture (72) Inventor Kokichi Suzuki 15-3 Mukaiyamadaicho, Toyohashi City, Aichi Prefecture

Claims (5)

[Claims] A plurality of rotating seats arranged in a row in a train and rotatably supported with respect to the floor to change their orientation; locking the rotation of these rotating seats;
A seat direction for a train, comprising: a locking mechanism provided for each rotating seat; and a centralized management system capable of individually and centrally operating locking and unlocking of the locking mechanism of each rotating seat. Conversion device. 2. The train seat direction changing device according to claim 1, wherein each of the rotating seats is provided with a direction detecting sensor, and the central management system uses the output of the direction detecting sensor to perform a predetermined operation. Train seat direction changing device provided with means for operating only the locking mechanism of the rotating seat facing in the direction of. 3. The train seat direction changing apparatus according to claim 1, wherein each rotating seat is provided with a lock operation switch that operates only a locking mechanism of the rotating seat and operates separately from the central management system. Equipped train direction change device for trains. 4. The train seat direction changing device according to claim 1, wherein each of the rotating seats can take a reference posture and a user-set posture different from the reference posture. Is provided with a reference attitude detection sensor that detects that the vehicle is in the reference attitude. The centralized management system is for trains that allow unlocking of the lock mechanism only when the reference attitude detection sensor detects the reference attitude. Seat direction change device. 5. The train seat direction changing apparatus according to claim 3, wherein each of the rotating seats can take a reference posture and a user setting posture different from the reference posture. A reference attitude detection sensor for detecting that the vehicle is in the reference attitude, the lock operation switch is provided only when the reference attitude detection sensor is detecting the reference attitude, and is a train seat direction that allows unlocking of the lock mechanism. Conversion device.