JPH1076873A - Seat turnover device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat turnover device that is possible for the automatic turnover of a seat in a short time and also for its manual turnover even in time of failare in a motor. SOLUTION: This seat turnover device is provided with a seat frame 40 being invertible to a leg rest 34 of a floor face F in a range of about 180 deg. clockwise or counterclockwise, a stopper member 12 regulating a tumover position of this seat frarre 40, a transmission member 46 attached to the frame 40, a pushing member 41 being installed in a base 14a installed in the leg rest 34 together with this transmission member 46 on the same circumference, and made up of setting a circumferential position different from a turning range of the transmission member 46 as a starting point, and a motor 16a being engaged with the transmission member 46 after rotating this pushing member 41, respectively. In this constitution, the transmission member 46 or pushing member 41 are installed rockably from an engageable position on the same circumference up to a retreatal position where this engaged state is released, and it is provided with an energizing means 47 energizing the transmission member 46 or pushing member 41 to the side of the engageable position on the same circumference mentioned alcove.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat reversing device for automatically reversing the direction of a seat of a railway car or the like at a starting station or a terminating station about every 180 degrees.

[0002]

2. Description of the Related Art A conventional seat reversing device for automatically reversing the direction of a seat is disclosed in Japanese Patent Laid-Open Publication No. Hei 7-329619. Then, the transmission arm is rotated by about 90 ° in the reverse direction of the seat by the motor to lock the transmission arm to the turning member on the seat side. Then, in this locked state, the transmission arm is moved in the same direction. About 18 more
There is disclosed an apparatus in which the direction of the seat is reversed by rotating the seat by 0 °.

That is, in this conventional seat reversing device,
The direction of the seat is reversed by about 180 ° by rotating the transmission arm a total of about 270 ° before and after locking with the turning member. After the seat is turned over, after the locking member locks the seat again so that it cannot rotate, the transmission arm moves about 270 in the opposite direction.
By turning, it returns to the original position, that is, the starting point.

[0004]

However, in the above configuration, when the seat is turned over, the transmission arm reciprocates about 540 times.
When the transmission arm needs to be rotated, and when the transmission arm has turned about 270 ° in the reverse direction of the seat, the transmission arm needs to be temporarily stopped until the locking member locks the seat again. There is a problem that the time required for the reversal becomes long. In particular, when the seats are horizontally long, such as a three-seat seat, if all the seats of one vehicle are inverted at the same time, the adjacent seats in front and rear may interfere with each other. In such a case, it is necessary to sequentially reverse the seat, and in this case, there is a problem that the time required for the reverse of the seat is further increased.

A motor for driving the transmission arm is
Should the vehicle stop due to a failure during the reversal of the seat, the rotation resistance of the motor and the speed reducer is large, and the seat is manually rotated in the direction in which the transmission arm and the turning member are locked, thereby reversing the seat. There is a problem that it is difficult to make it. Furthermore, since an electric actuator for unlocking the lock member is required separately from the motor for driving the transmission arm, there is a problem that the number of parts increases.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a seat reversing apparatus capable of automatically reversing a seat in a short time and improving handling efficiency.
Therefore, the seat reversing device according to the first aspect of the present invention can rotate the footrest fixed to the floor side by about 18 clockwise or counterclockwise.
A seat mount capable of reversing in a range of 0 °, a stopper member for regulating the reversing position of the seat mount, and attached to the seat mount, and turned around the center of rotation of the seat mount in the range of about 180 ° for reversal; A transmission member that is provided on a base mounted on the footrest, has the same rotation center as the rotation center of the seat mount, is provided on the same circumference as the transmission member, and rotates the transmission member. A pushing member starting from a circumferential position different from the range, and a motor for rotating the pushing member to lock the transmitting member, wherein the transmitting member or the pushing member is the same as the same member. From the position where they can be locked together on the circumference, to the retracted position where the locked state is released, it is swingably provided, and the transmission member or the pushing member is moved toward the lockable position side on the same circumference. Provide biasing means for biasing It is characterized by having.

[0007] In the above configuration, the direction of the seat is set to about 180.
When the motor is used to rotate the pushing member, the pushing member is rotated by a predetermined angle and then locked to the transmission member. Thereafter, when the motor further rotates the pushing member in the same direction, the pushing member presses the transmission member to rotate in the same direction as the pushing member, and accordingly, the sheet provided with the transmission member is provided. The gantry and also the seats arranged on the seat gantry are rotated. Then, after the pushing member is locked to the transmission member, when the pushing member rotates about 180 °,
The seat cradle is engaged with the stopper member and cannot be further rotated. At this point, the reversal of the seat cradle, that is, the seat is completed.

In this state, when the rotation of the motor in the same direction is continued, the transmission member or the pushing member is swingably provided. As a result, the swinging member is swung to the retreat position where the locking state is released, and the pushing member eventually gets over the transmission member. Therefore, the motor can return the pushing member to the starting point without hindering the rotation in the same direction. When the pushing member gets over the transmission member, the urging means returns the transmission member or the pushing member to a position where it can be locked.

As described above, when the seat is turned over, all the operations can be completed by rotating the pushing member in the same direction, so that the transmission arm is moved in one direction as in the conventional example. After turning about 270 ° to the starting point again, turning about 270 ° in the opposite direction to the starting point (about 5
The time required for reversing the seat can be reduced as compared with the case where a rotation of 40 ° is required. Further, in the present invention, it is not necessary to reverse the rotation direction of the motor during one reversing operation, so that the control circuit of the motor can be simplified.

[0010] The seat reversing device according to the second aspect is the first aspect.
In the configuration, the pushing member is provided on a rotating body, a cam is formed on an outer peripheral surface of the rotating body, and a lock member for unlocking the locking member for locking the seat gantry at each reversing position is provided. The operation member is driven by the cam.

In this case, a cam provided with a pushing member on the rotating body and a lock member on the outer peripheral surface of the rotating body is provided with a lock for locking the seat base so that it cannot rotate when the seat is turned over. Since the rotation is released by rotating the rotating body by the motor, both the driving of the pushing member and the unlocking of the lock member can be performed. This eliminates the need to provide a separate drive source for unlocking the lock member, thereby reducing the number of components.

According to a third aspect of the present invention, there is provided a seat reversing device.
In the above configuration, the rotating body is provided with a detecting member for detecting a starting point of the pushing member. That is, when the rotating body rotates 360 ° and returns to the original position, that is, the starting point when the seat is turned over, the detecting member detects the rotation and stops the driving of the motor, so that the rotating body rotates. To stop. In this case, by providing the detection member on the rotating body, one rotation of the rotating body can be reliably detected with the minimum number of components.

According to a fourth aspect of the present invention, there is provided a seat reversing device.
In the above configuration, the motor is provided in parallel with the rotating body in a lateral direction, and a transmission mechanism for transmitting a driving force of the motor to the rotating body is provided. That is, by providing the motors in parallel in the horizontal direction of the rotating body, the thickness of the seat reversing device in the vertical direction can be reduced, and a space under the seat can be secured.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seat S of a railway vehicle is configured by, for example, arranging three seats 1 in a lateral direction, and each seat 1 is provided with a seat bottom 2.
And a seat back 3 that is reclineably connected to the seat bottom 2. A footrest 4 is provided on each of the lower sides of the seat S, and a horizontal member 5 is provided between the footrests 4, and the horizontal member 5 supports a seat reversing device 6.

The seat S is normally locked non-rotatably by a lock pin 7a of a lock member 7 attached to the seat reversing device 6, and is depressed by depressing a pedal 8 provided on a passage side of the seat reversing device 6. The lock by the lock pin 7a is released, and in this state, the seat S can be manually rotated by about 180 ° to reverse its direction. At the first station or the last station, for example, 1
In this configuration, each seat S is automatically inverted by the seat inverting device 6 for each vehicle.

When the seat back 3 is in a reclining state in which the seat back 3 is inclined rearward, the seat back 3 is automatically returned to a standing position prior to the reversal of the seat S. That is, the reclining state of the seat back 3 is changed with the operation of releasing the lock of the seat S by the lock pin 7a by depressing the pedal 8 at the time of manual reversing or the operation of automatically releasing the lock of the lock pin 7a at the time of automatic reversing. It is released.

A bottom plate 10 is attached to the bottom surface of each seat bottom 2 of the seat S. The bottom plate 10 has two engagement holes in which a lock pin 7a that moves up and down at both inverted positions of the seat S can be engaged. (Not shown) are provided at rotationally symmetric positions. In the vicinity of the engagement holes of the bottom plate 10, stopper members 12 are respectively protruded downward, and one of the stopper members 10 is engaged with the transverse member 5 on the vehicle body side at each reversing position. In addition, an engagement piece 13 for positioning the seat S is provided.

FIG. 2 is an enlarged front view of the seat reversing device 6 with the case 14 removed, and FIG. A drive source 16 is attached to one side end of a bottom plate 14a (base) of the case 14 via an L-shaped bracket 15, and the drive source 16 includes a motor 16a and a speed reducer 16b. The output of the drive source 16 is
Thus, the power is transmitted to first and second rotating bodies 25 and 26 described later. That is, the output shaft of the drive source 16 is connected to the drive pulley 20 via the immediately toothed bevel gears 18 and 19, and the drive pulley 20 is rotatably supported by the bottom plate 14a.

At a substantially central portion of the bottom plate 14a, a support shaft 21 is provided in a vertical direction. On the outer periphery of the support shaft 21, a driven pulley 23 is rotatably supported via a bearing 22, and a drive pulley 20 is provided. And a belt 24 between the driven pulley 23 and
Has been passed over. A first rotating body 25 is disposed above the driven pulley 23, and a second rotating body 26 is disposed below the driven pulley 23.
These first and second rotating bodies 25 and 26 (rotating bodies) are fixed to the driven pulley 23 with rivets or the like, and the driven pulley 23
And rotate together.

The outer periphery of the first rotating body 25 has a large-diameter outer peripheral surface 2.
5b and a depression 25 provided in a part of the large-diameter outer peripheral surface 25b
The main cam 25a is formed with the roller 28a of the operating member 28. A support member 30 is provided on the other side end of the bottom plate 14a.
The operation member 28 is supported by a support member 30 so as to be movable in the left-right direction.
1, the roller 28a is urged in the direction in which the roller 28a contacts the main cam 25a, that is, rightward.

One end of an outer tube 32a of the pull cable 32 is fixed to the operation member 28, and one end of an inner wire 32b is connected to an end of the operation member 28 opposite to the roller 28a by a connection piece 33. . The other end of the pull cable 32 is connected to the pedal 8, and when the inner wire 32b moves to the left in FIG. 2 together with the operating member 28, the lock pin 7 is moved in the same manner as when the pedal 8 is depressed.
The unlocking operation by a is performed.

The case 14 and the bottom plate 14a of the seat reversing device 6 are supported by two left and right support members 34,
An annular outer ring 35 is fixed to these support members 34 by bolts 36, and the outer ring 35 is fixed to the horizontal member 5. Inside the outer ring 35, an annular inner ring 38 is disposed via a ball 37 so as to be relatively rotatable on substantially the same horizontal plane. The inner ring 38 is connected to the lower surface of the bottom plate 10 of the seat S via two left and right seat mounts 40.
Thus, when the inner race 38 rotates within the outer race 35, the seat S rotates together with the outer race 35.

A pushing roller 41 (a pushing member) is rotatably mounted on the upper surface of the first rotating body 25 near the depression 25c. On the other hand, bolts 4
2, a support plate 43 is attached, and a support shaft 44 protruding downward is integrally provided on the support plate 43. An arm 45 is supported on the support shaft 44 so as to be swingable about a base end thereof in a horizontal plane, and a transmission roller 46 (transmission member) is rotatably attached to a distal end of the arm 45. The transmission roller 46 and the pushing roller 41 are arranged at the same height position on the same circumference around the support shaft 21.

The arm 4 is provided between the arm 45 and the support plate 43.
Urging spring 4 for urging 5 toward the neutral position shown in FIG.
7 (biasing means) is provided. That is, arm 4
5 is returned to the neutral position in FIG. 3 by the biasing spring 47 when the external force is released, regardless of whether it swings clockwise or counterclockwise in FIG. The urging force of the urging spring 47 is set to be larger than the rotational resistance of the seat S and smaller than the rotational output of the motor 16a. The pushing roller 41 starts at a position in the circumferential direction that is different from the transmission roller 46, that is, a reversing turning range of about 180 ° of the inner race 38 (a range from FIG. 4 to FIG. 11 described later).

A detection cam 26a having a large-diameter outer peripheral surface 26b and a recess 26c provided in a part of the large-diameter outer peripheral surface 26b is formed on the outer peripheral surface of the second rotating body 26.
A limit switch 48 (detection member) for detecting the starting point of the pushing roller 41 by being in contact with the detection cam 26a is attached to the outer ring 35.

That is, the limit switch 48 is supported by the outer cylinder 48a and the outer cylinder 48a so as to be movable in the longitudinal direction of the outer cylinder 48a, and the outer periphery of the second rotating body 26 is urged by a biasing means (not shown). Inner cylinder 48b urged toward the surface
And a roller 48c rotatably attached to the tip of the inner cylinder 48b. The position at which the roller 48c fits into the depression 26c of the detection cam 26a is
1 is the starting point. The limit switch 48 is turned off at this starting point, while the limit switch 48 is turned on when the roller 48c rides on the large-diameter outer peripheral surface 26b.

Hereinafter, the automatic reversing operation of the seat S at the first station or the last station will be described. Here, a case will be described in which the seat S in the orientation shown in FIG. 1 is automatically turned clockwise when viewed from above. As shown in FIG. 4, before the reversal is started, the roller 28a of the operation member 28 contacts the center of the depression 25c of the main cam 25a, and the roller 48c of the limit switch 48 is moved to the depression 26 of the detection cam 26a.
c.

When the seat 16 is automatically turned clockwise, the driving pulley 20 is rotated clockwise in FIG.
Also rotates clockwise, and accordingly, the first and second rotating bodies 25 and 26 also rotate clockwise. As shown in FIG. 5, when the first and second rotating bodies 25 and 26 rotate by about 50 °, the roller 28a of the operating member 28 leaves the depression 25c of the main cam 25a and rides on the large-diameter outer peripheral portion 25b, and Then, the operation member 28 is pressed to the left.

As a result, the inner wire 32b (FIG. 2) of the pull cable 32 is pulled to the left, and the rotation lock by the lock pin 7a (FIG. 1) is released in the same manner as when the pedal 8 is depressed. If the back 3 is in the reclining state, it is returned to the standing position.

By rotating the motor 16a, the first
When the second rotating bodies 25 and 26 further rotate clockwise and the rotation angle from the start of rotation reaches about 53 °, the pushing roller 41 is moved to the transmission roller 46 as shown in FIG. Locked. As described above, since the urging force of the urging spring 47 is larger than the rotational resistance of the seat S, when the first rotating body 25 further rotates clockwise, the arm 45 does not swing, and the first rotating body 25 and With the rotation of the pushing roller 41, the transmission roller 4
6 is pressed by the pushing roller 41 and rotates clockwise about the support shaft 21. Accordingly, the outer race 35 and the seat S also start to rotate clockwise.

As shown in FIG. 7, when the first rotating body 25 and the pushing roller 41 rotate about 143 °, the transmission roller 46 is rotated.
And the seat S rotates clockwise by about 90 °. Further, FIG.
When the first rotating body 25 and the pushing roller 41 rotate about 233 °, the transmission roller 46 and the seat S rotate clockwise about 180 °. As a result, the stopper member 12 (FIG. 1) provided on the bottom plate 10 of the seat S is engaged with the engagement piece 13 on the vehicle body side, and the further rotation of the seat S clockwise is prohibited.

On the other hand, the first and second rotating bodies 25 and 26 are further rotated clockwise by the driving force of the motor 16a.
As described above, since the driving force of the motor 16a is larger than the urging force of the urging spring 47, as shown in FIG.
The pushing roller 41 on the rotating body 25 further rotates clockwise while swinging the arm 45 counterclockwise.

Thereafter, when the first rotating body 25 further rotates clockwise, as shown in FIG. 10, the roller 28a of the operating member 28 falls into the recess 25c of the main cam 25a,
Accordingly, the inner wire 32b of the pull cable 32
Is moved to the right in FIG.
a is moved upward by the urging force of a spring (not shown) or the like and engages with the engaging hole of the bottom plate 10 of the seat S, whereby the seat S is rotationally locked. Further, the pushing roller 41 and the transmission roller 4
6 is released, and the arm 45 returns to the neutral position side, that is, the same circumferential position where the pushing roller 41 and the transmission roller 46 can be locked by the urging force of the urging spring 47. .

The first rotating body 25 further rotates clockwise,
When the rotation angle from the start of the rotation becomes 360 ° and the first rotating body 25 makes one rotation, the roller 48c of the limit switch 48 is moved to the outer circumferential surface of the second rotating body 26 as shown in FIG. The limit switch 48 is turned off by dropping into the depression 26c of the detection cam 26a. Thereby, the motor 16
a is stopped, and as a result, the first and second rotating bodies 2
The rotation of the seats 5 and 26 is also stopped, and the reversing operation of the seat S ends.

As described above, the seat S is inverted by rotating the pushing roller 41 in the same direction by 360 °, so that the time required for the seat S to be inverted can be shortened as compared with the related art. In particular, it is difficult to reverse all the seats S of one vehicle at the same time because the seats S are horizontally long, such as three-seaters. For example, the reverse operation is performed separately in odd rows and even rows. In such a case, the time required for inversion can be further reduced. Further, since it is not necessary to reverse the rotation direction of the motor 16a during one reversing operation of the seat S, the control circuit and the like of the motor 16a can be simplified.

Further, if the motor 16a stops due to a failure during the reversing operation of the seat S, for example, if the motor 16a stops at the position shown in FIG. 7, the seat S is manually turned clockwise. By rotating, the reversing operation can be easily ended. On the other hand, for example, when the motor 16a breaks down at the position shown in FIG. 7 and the user wants to manually rotate the seat S counterclockwise to return to the position at the time of starting the reversal, the transmission roller 46 is conventionally used. And pushing roller 4
1 cannot be released, the motor 1
It was difficult to manually rotate the seat S counterclockwise by overcoming the rotational resistance of the gear 6a and the speed reducer 16b.
In the present invention, when the motor 16a malfunctions, for example, when the seat S is manually rotated counterclockwise from the position shown in FIG. 7, the arm 45 swings counterclockwise around the support shaft 44, and the power is eventually transmitted. Since the engagement between the roller 46 and the pushing roller 41 is released, the seat S can be manually rotated and inverted in the counterclockwise direction even when the motor 16a is not rotating.

The seat S is rotated clockwise 18 by the seat reversing device 6.
When the seat S has been manually inverted by the passenger before the 0 ° inversion, the outer wheel 35 is at the position shown in FIG. 11 when the driving of the motor 16a is started. Also in this case, the first and second rotating bodies 25 and 26 are rotated clockwise by 360 ° by the motor 16a.
Only the wheels 5 and 26 idle, and the seat S does not rotate. However, if the seat back 3 is in the reclining state, the operation member 28 is moved leftward by the main cam 25a, so that the seat back 3 is returned to the standing position.

As described above, the seat S is moved clockwise by 1.
After the seat is inverted by 80 °, the seat S is turned counterclockwise by 180 degrees.
° When reversing the motor 16 from the state shown in FIG.
a in the opposite direction, and the first and second rotating bodies 25 and 26
Is rotated 360 ° in the counterclockwise direction, the seat S is turned 180 ° in the counterclockwise direction, but will not be described in detail here.

Next, a configuration example of an electric circuit used to reverse the direction of the seat S for each vehicle will be described. As shown in FIG. 12, each railroad vehicle is provided with an operation switch panel 50 for reversing operation of the seat S, while each odd-numbered row of seats S of the vehicle is provided with a control panel 51 (FIG. 1).
3) A control panel 52 (FIG. 14) is provided for each of the seats S in the even-numbered rows.

An AC power source 53 is connected between the terminals a and b of the operation switch panel 50, and a lamp 54 is provided on the operation switch panel 50 so as to light up when the operation is possible. b. or,
The terminal a is connected to a changeover switch 55 for switching between the seat S in the odd row and the seat S in the even row. A push button 56 for reversing the direction of the seat S in the upward direction is provided between the movable contact 55a on the odd-numbered row side of the changeover switch 55 and the terminal c.
A switch 56a interlocking with the movable contact 5 is provided.
Between the terminal 5a and the terminal d, a switch 57a interlocking with the push button 57 for reversing the direction of the seat S in the downward direction is arranged.

A switch 56b interlocked with the push button 56 is provided between the movable contact 55b on the even-numbered row side of the changeover switch 55 and the terminal e, and the push button 57 is provided between the movable contact 55b and the terminal f. An interlocking switch 57b is provided. Further, a lamp 58 indicating that the seat S is being inverted in the upward direction is disposed between the contact points a and g, while the seat S is being inverted in the downward direction between the contact points a and h. Is provided.

In FIG. 13, a fuse 61a is connected to a contact 1 of a control panel 51 provided in the seat reversing device 6 for the odd-numbered rows of seats S. The fuse 61a and the motor 1
A switch 62a is provided between a contact 6a and a contact p of the fuse 6a.
A switch 63a is respectively connected between the contact q of the motor 16a and a contact r of the motor 16a.
It is connected to the.

A relay 64a is connected between the contacts 2 and 3, and a relay 65a is connected between the contacts 2 and 4.
Is connected to one contact x of the limit switch 48 via a switch 66a, and the contact 4 is connected to the contact x via a switch 67a. Contact 1 is fuse 6
It is connected to the other contact y of the limit switch 48 via 1a. Further, a switch 68a is provided between the contacts 5 and 6.
However, a switch 69a is connected between the contacts 7 and 8. The switches 62a, 66a and 68a are turned on and off by the relay 64a.
The relays 3a, 67a and 69a are turned on and off by the relay 65a.

The connections between the contacts a to h of the operation switch panel 50 and the contacts 1 to 8 of the control panel 51 are as shown in Table 1 below. That is, the contact 1 of the control panel 51 is connected to the contact a of the operation switch panel 50, the contact 2 is connected to the contact b, and so on.

[Table 1]

As shown in FIG. 14, the control panel 52 provided in the seat reversing device 6 for the even rows of seats S has the same configuration as the control panel 51. The suffix “a” of the reference numeral of the member is shown in place of “b”. Further, each contact a to h of the operation switch board 50,
Table 2 below shows the connection relationship between the contacts 11 to 18 of the control panel 52.
As shown in FIG.

[Table 2]

Hereinafter, the operation of the electric circuit will be described. For example, when the direction of the seat S for each vehicle is sequentially reversed in the ascending direction in the order of the odd-numbered rows of seats S and the even-numbered rows of seats S, the lamp 54 in the operation switch panel 50 of FIG.
Is turned on to confirm that it is in an operable state, and then the changeover switch 55 is first depressed to the movable contact 55a for the odd-numbered row and the push button 56 is pressed.
56b is turned on.

Thus, a current flows from the contact a to the contact c through the switch 56a, the contact 3 of the control panel 51 (FIG. 13), the relay 64a, the contact 2, and the contact b of the operation switch panel 50, and the relay 64a is excited. As a result, the switches 62a, 66a and 68a are turned on. As a result, the contact a of the operation switch panel 50, the contact 1 of the control panel 51, the switch 62a, the contact p, the motor 16a, the contact r,
An electric current flows through the path of the contact 2 and the contact b of the operation switch board 50, and the motor 16a of the odd-numbered row of seats S starts to rotate in the upward direction.

The electric current is supplied from the contact a to the lamp 58, the contact g, the contact 5, the switch 68a, the contact 6, and the contact b, and the lamp 58 is turned on. It is displayed that there is. Further, when the limit switch 48 is turned on with the rotation of the motor 16a, power is supplied through the path of the contact a, the contact 1, the limit switch 48, the switch 66a, the relay 64a, the contact 2, and the contact b, and the push button 56 is pressed. Even after the operation is canceled, the excited state of the relay 64a is maintained by itself, and the motor 16a continuously rotates.

Thereafter, the first and second rotating bodies 25, 2
When the seat 6 in the odd-numbered row S is rotated by 360 ° and the reversing operation of the seat S in the upward direction is completed, the limit switch 48 is turned off, but the relay 64a is demagnetized and the switches 62a, 66a, and 68a are turned off. Is turned off,
The motor 16a is stopped, and the lamp 58 is turned off.

Next, when the changeover switch 55 is switched to the movable contact 55b for the even-numbered row and the push button 56 for inversion in the upward direction is pressed, the contact a, the switch 56b, the contact d, and the contact 13 When the relay 64b is energized, the switches 62b, 66b, and 68b are turned on. As a result, the motor 16a of the seat S in the even-numbered row rotates in the upward direction. Begin to. Thereafter, in the same manner as described above, each seat S in the even-numbered row is reversed in the upward direction.

On the other hand, when reversing the direction of each seat S in the downward direction, the changeover switch 55 is set to the movable contact 55 for the odd-numbered row.
When the switch is switched to the side a, and the push button 57 for the downward direction is pressed, the current is supplied through the path of the contact a, the switch 57a, the contact d, the contact 4 of the control panel 51, the relay 65a, the contact 2, and the contact b, and the relay 65a is excited Switch 6
3a, 67a and 69a are turned on.

Thus, the contact a, the contact 1, the switch 6
3a, contact q, motor 16a, contact r, contact 2, contact b
, The motor 16a of the odd-numbered row of seats S starts to rotate in the downward direction. In the same manner as described above, a lamp 59 indicating that the vehicle is being reversed in the downward direction is displayed, and the first and second rotating bodies 2 are turned by the limit switch 48.
Until the rotation of the motors 5 and 26 in the downward direction is completed, the relay 65 is turned off.
The state of energization to a is held by itself. Hereinafter, in order to reverse the direction of each seat S in the even row in the downward direction, the changeover switch 55 may be switched to the movable contact 55b for the even row, and the push button 57 for the downward direction may be pressed.

In the above-described embodiment, the seats S of each vehicle are divided into odd rows and even rows, and the directions are sequentially reversed. If the vehicle is short, the seat S of each vehicle can be reversed at a time. Also, instead of providing the operation switch panel 50 for each vehicle, for example, for all vehicles,
One operation switch panel 50 is provided, and seats S of all vehicles are provided.
May be performed at the same time. Further, in the above-described embodiment, the transmission roller 46 is swingable, but the pushing roller 41 side is configured to be swingable, and the transmission roller 46 and the pushing roller 4
The locked state on the same circumference as 1 may be released.

[0054]

As described above, according to the first aspect of the present invention,
The seat reversing device according to the present invention is characterized in that a seat mount that can be inverted clockwise or counterclockwise in a range of about 180 ° with respect to a footrest fixed to the floor surface, and a stopper member that regulates the inverted position of the seat mount. And attached to the seat mount,
A transmission member that is turned around the rotation center of the seat mount in a reverse direction within the range of about 180 °, and is provided on a base mounted on the leg base, and has the same rotation center as the rotation center of the seat mount; A pushing member provided on the same circumference as the transmission member and starting from a circumferential position different from the turning range of the transmission member, and locking the transmission member by rotating the pushing member A driving motor, wherein the transmission member or the pushing member is swingably provided on the same circumference from a position where they can be locked to each other to a retracted position where the locked state is released, and Since the urging means for urging the member or the pushing member toward the lockable position side on the same circumference is provided, the pushing member is rotated in the reverse direction of the seat to be locked with the transmission member. Then, the pushing member is moved to about 180
After the seat is turned over by rotating it, the pushing member or the transmission member is rocked to release the locked state of the two, and the pushing member is further rotated in the same direction, whereby the seat is rotated. When the transmission arm is rotated about 270 ° in the reverse direction of the seat and then rotated about 270 ° in the reverse direction to the starting point again as in the conventional example, In comparison with the above, the time required for reversing the seat can be shortened, and there is no need to reverse the rotation direction of the motor during one reversing operation, so that the motor control circuit and the like can be simplified. .

If the motor is broken during the reversing operation of the seat and the seat is manually reversed in the direction in which the transmission arm and the pushing member are locked, the transmission member is pushed during the reversing. When the seat is manually rotated further, the transmission member or the pushing member swings in a direction to release the locked state with each other, and the engagement between the transmission member and the pushing member is eventually established. Since the state is released, the seat can be manually turned over even when the motor is in a failure state.

The seat reversing device according to the second aspect is the first aspect.
In the configuration, the pushing member is provided on a rotating body, a cam is formed on an outer peripheral surface of the rotating body, and a lock member for unlocking the locking member for locking the seat gantry at each reversing position is provided. Since the operating member is driven by the cam, by rotating the rotating body by the motor, both the driving of the pushing member and the unlocking of the lock member can be performed, and the lock member Since there is no need to provide a separate drive source for unlocking, the number of components can be reduced.

The seat reversing device according to the third aspect is the first aspect.
In the above configuration, since the rotating body is provided with the detecting member for detecting the starting point of the pushing member, there is an advantage that one rotation of the rotating body can be reliably detected with a minimum number of parts.

The seat reversing device according to the fourth aspect is the second aspect.
In the configuration of the above, the motor is provided in parallel in the lateral direction of the rotating body, and a transmission mechanism for transmitting the driving force of the motor to the rotating body is provided. The space under the foot can be secured.

[Brief description of the drawings]

FIG. 1 is a front view showing a seat provided with a seat reversing device according to an embodiment of the present invention.

FIG. 2 is a front view of the seat reversing device.

FIG. 3 is a plan view of the seat reversing device.

FIG. 4 is a schematic plan view showing a procedure of reversing a seat by the seat reversing device.

FIG. 5 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 6 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 7 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 8 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 9 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 10 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 11 is a schematic plan view showing a subsequent reversing procedure of the seat by the seat reversing device.

FIG. 12 is an explanatory diagram showing an operation switch panel for operating the seat reversing device.

FIG. 13 is an explanatory view showing a control panel provided for each seat in an odd row.

FIG. 14 is an explanatory diagram showing a control panel provided for each seat in an even-numbered row.

[Explanation of symbols]

 Reference Signs List 6 seat reversing device 7 lock member 12 stopper member 17 transmission mechanism 25 first rotating body (rotating body) 25a main cam (cam) 26 second rotating body (rotating body) 40 seat mount 41 pushing roller (pushing member) 46 transmission Roller (transmission member) 48 Limit switch (detection member)

Claims (4)

[Claims] 1. A seat base which can be turned clockwise or counterclockwise within a range of about 180 ° with respect to a foot base fixed to the floor side, a stopper member for regulating a turning position of the seat base, A transmission member attached to the seat mount, and a transmission member that is turned around the rotation center of the seat mount in a reverse direction within the range of about 180 °, and is provided on a base mounted on the foot mount, and the rotation center of the seat mount is A pushing member having the same rotation center and provided on the same circumference as the transmission member, and starting from a circumferential position different from the turning range of the transmission member, and rotating the pushing member. A motor that locks the transmission member with the transmission member, and swings the transmission member or the pushing member from a position where they can be locked to each other on the same circumference to a retracted position where the locked state is released. And the transmission Seat reversing apparatus characterized in that a biasing means a member or pressing member for urging the latchable position side on the same circumference. 2. The pressing member is provided on a rotating body, and a cam is formed on an outer peripheral surface of the rotating body to unlock a locking member that locks the seat frame at each reversing position. 2. The seat reversing device according to claim 1, wherein the operating member is driven by the cam. 3. The seat reversing device according to claim 1, wherein a detecting member for detecting a starting point of the pushing member is provided on the rotating body. 4. The seat reversing device according to claim 2, wherein the motor is provided in parallel with the rotating body in a lateral direction, and a transmission mechanism for transmitting a driving force of the motor to the rotating body is provided.