JPH1067263A - Arrangement change-over device of seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an arrangement change-over device of a seat for a vehicle capable of changing an arrangement state of a movable seat part in a short period of time. SOLUTION: An arrangement change-over device is furnished with a fixed frame 7, a slide frame 8, a movable seat part and a transmission mechanism 31. The fixed frame 7 is fixed on a floor 2 of a railway rolling stock, and the slide frame 8 is installed on the fixed frame 7 free to slide in the cross direction of the railway rolling stock. The movable seat part has at least a seat part and a back pad part, and it is installed on the slide frame 8 free to rotate by a rotation main shaft 22. The transmission mechanism 31 rotation of the movable seat part to the slide frame 8 by converting it to rectilinear motion at the time when the movable seat part is rotated, and it slides the slide frame 8 in the cross direction with the movable seat part in accordance with rotation of the movable seat part. By sliding in accordance with this rotation, the movable seat part is changed over to long arrangement where the back pad partc comes to be roughly in parallel with the forwarding direction of the railway rolling stock and cross arrangement where the back pad part comes to be orthogonal with the forwarding direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat arrangement switching device, and more particularly, to an arrangement of a plurality of seats provided on a vehicle such as a railroad vehicle or a bus, and a backrest of the seat. The present invention relates to an array switching device for switching between a long array substantially parallel to the traveling direction of a vehicle and a cross array in which a backrest portion is substantially orthogonal to the traveling direction.

[0002]

2. Description of the Related Art Conventionally, long seats and cross seats are generally used as seats for vehicles such as railway vehicles and buses. A long seat is a bench-type seat having a long seat and a backrest arranged along the side wall of the vehicle such that the backrest is substantially parallel to the traveling direction of the vehicle. It is. This type of seat can provide a large space for standing and aisle, and is suitable when crowded for commuting, going to school, or the like. However, when the vehicle accelerates or decelerates,
Since it is impossible to receive the sway of the occupant in the traveling direction of the vehicle, the sitting comfort is not always good. Therefore, long seats are less suitable when the vehicle is not crowded.

[0003] On the other hand, a cross seat has a plurality of seats provided with a seat, a backrest, an armrest, and the like, arranged such that the backrest is substantially orthogonal to the traveling direction of the vehicle. In this type of seat, the backrest portion detects that the body of the occupant swings in the traveling direction of the vehicle when the vehicle accelerates or decelerates. For this reason, the riding comfort is good and is suitable when the vehicle is not crowded. However, since the space for the standing seat and the passage is narrowed, it is not suitable when crowded.

As described above, each of the long seat and the cross seat has advantages and disadvantages. Therefore, a long arrangement in which the backrest is substantially parallel to the traveling direction of the vehicle (corresponding to the long seat described above) and a cross arrangement in which the backrest is substantially perpendicular to the traveling direction (corresponding to the above-described cross seat) Various types of seats that can be switched between and have been proposed and put into practical use. The seat has a fixed frame fixed to the floor of the vehicle, a slide frame mounted on the fixed frame so as to be slidable in the width direction of the vehicle, a seat, a backrest, an armrest, and the like. And a movable seat portion rotatably mounted on the slide base.

[0005] According to this seat, in the long arrangement, the slide frame is brought close to the side wall of the vehicle, and the backrest of the movable seat portion is made substantially parallel to the side wall. Further, in the case of the cross arrangement, the slide base is brought close to the side wall, and the backrest is made substantially perpendicular to the side wall. In either arrangement, the movable seat is brought closer to the side wall in order to make the space for standing and aisle a little wider. For this array,
Since the backrest and armrest interfere with the side wall, the movable seat cannot be rotated. Therefore, at the time of switching the arrangement, the slide base is slid in a direction away from the side wall. When the backrest portion and the armrest portion are slid to a position where they do not interfere with the side wall, the movable seat portion is rotated. When the backrest becomes substantially parallel or substantially perpendicular to the side wall by the rotation, the slide gantry is slid in a direction approaching the side wall.

[0006]

However, in the above-described prior art, when switching the arrangement state of the seats, the slide of the slide base and the rotation of the movable seat are performed separately. That is, first, the slide gantry is slid in a direction in which the movable seat is separated from the side wall, and the slide gantry is slid by a predetermined amount, and then the movable seat is rotated. Then, after the movable seat is rotated by a predetermined angle, the slide base is slid in a direction in which the movable seat approaches the side wall. As described above, after one operation is completed, the next operation is performed. Therefore, it takes time from the start to the end of the switching of the seat arrangement.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle seat arrangement switching device capable of switching the arrangement state in a short time.

[0008]

According to a first aspect of the present invention, there is provided a fixed frame fixed to a vehicle, and a slidable frame mounted on the fixed frame in a width direction of the vehicle. A movable slide part having at least a seat portion and a backrest portion attached thereto and rotatably mounted on the slide frame by an axis; and when the movable seat portion is rotated, the rotation is linear. A transmission mechanism that converts the motion into a motion and transmits the motion to the slide mount, and slides the slide mount in the width direction of the vehicle together with the movable seat in accordance with the rotation of the movable seat, comprises a slide along with the rotation,
The movable seat is switched between a long arrangement in which the backrest is substantially parallel to the traveling direction of the vehicle and a cross arrangement in which the backrest is substantially perpendicular to the traveling direction of the vehicle.

According to the first aspect, when the movable seat is rotated about the axis, the rotation is converted into linear motion by the transmission mechanism and transmitted to the slide base.
With this transmission, the slide base is slid in the width direction of the vehicle together with the movable seat according to the rotation of the movable seat. Then, by the slide accompanying the rotation, the arrangement state of the movable seat portion is switched from the long arrangement to the cross arrangement or from the cross arrangement to the long arrangement. When the movable seat portion is switched to the long arrangement, the backrest portion becomes substantially parallel to the traveling direction of the vehicle. Further, when the movable seat portion is switched to the cross arrangement, the backrest portion is substantially orthogonal to the traveling direction of the vehicle.

[0010] A second invention according to claim 2 is the first invention, wherein
In addition to the configuration of the invention, the transmission mechanism may further include a cam member attached to the shaft so as to be integrally rotatable, a first arm supported by the fixed gantry, and a first arm supported by the slide gantry. A second arm connected to the first arm;
An engagement member is provided on one of the arm and the second arm, and is engaged with the cam member so as to be displaceable in the width direction of the vehicle in accordance with the rotation of the cam member.

According to the second aspect, when the movable seat is rotated about the axis, the cam member also rotates integrally with the axis. This rotation is transmitted to the fixed base and the slide base via the engagement member engaged with the cam member, the first arm and the second arm. During the transmission, the rotation of the movable seat is converted into a linear motion. In other words, the support position of the first arm on the fixed base and the support position of the second arm on the slide base are always the same, but the position of the engaging member in the width direction of the vehicle gradually changes as the movable seat rotates. . With this change, the slide base is slid in the width direction of the vehicle. As described above, a transmission mechanism for rotating and sliding the movable seat portion is established by a small number of components such as the cam member, the first arm, the second arm, and the engagement member.

A third aspect of the present invention is the third aspect of the present invention,
In addition to the configuration of the invention, the cam member has a non-circular guide hole, and the engaging member is slidably engaged in the guide hole.

According to the third aspect, when the cam member rotates integrally with the shaft, the rotation is transmitted to the slide base via the engaging member engaged with the guide hole and the second arm. . During the transmission, the rotation of the movable seat is converted into a linear motion. That is, the position of the engagement member in the guide hole changes in the width direction of the vehicle as the cam member rotates. Along with this, the position of the support position of the second arm with respect to the slide base also changes. Accordingly, the movable seat slides in the width direction of the vehicle together with the slide base while rotating.

According to a fourth aspect of the present invention, there is provided the fourth aspect of the present invention,
In addition to the configuration of the invention, the engaging member is rotatably supported by the first arm or the second arm, and is a guide roller that rolls in the guide hole according to the rotation of the cam member.

According to the fourth aspect, when the cam member rotates integrally with the shaft, the guide roller rolls on the wall surface of the guide hole. Due to this rolling, the position of the guide roller in the width direction of the vehicle changes. At this time, friction generated between the guide roller and the wall surface of the guide hole is smaller than when the engagement member slides in a state of contacting the wall surface without rotating.

According to a fifth aspect of the present invention, there is provided the first aspect of the present invention,
In addition to the configuration of any one of the fourth to fourth inventions, a first locking mechanism for locking the movable seat portion so that it cannot rotate when the movable seat portion is switched to one of the long arrangement and the cross arrangement. Is further provided.

According to the fifth aspect, when the movable seat is switched between the long arrangement and the cross arrangement,
The movable seat portion is non-rotatably locked by the first locking mechanism. Therefore, the movable seat does not rotate carelessly when the arrangement is not switched.

The sixth invention according to claim 6 is the fifth invention, wherein
In addition to the configuration of the invention described above, the first locking mechanism is attached to the shaft so as to be integrally rotatable and has a plurality of notches on the outer periphery thereof; And a stopper pin that engages with the notch when the seat is switched between the long arrangement and the cross arrangement.

According to the sixth aspect, the turntable rotates integrally with the shaft. With this rotation, the position of the notch of the turntable changes. When the movable seat portion is switched to the long arrangement, the notch faces the stopper pin. At this time, when the stopper pin engages with the notch of the turntable, the rotation of the movable seat portion is restricted.

According to a seventh aspect of the present invention, in the first aspect, the first
In addition to the configuration of any one of the sixth to sixth inventions, when the movable seat portion is switched to the long arrangement, a second locking mechanism for locking the movable seat portion so as not to slide is further provided.

According to the seventh aspect, when the movable seat is switched between the long arrangement and the cross arrangement,
The movable seat portion is non-slidably locked by the second locking mechanism. For this reason, the movable seat does not slide carelessly when the arrangement is not switched.

According to an eighth aspect of the present invention, in addition to the configuration of the seventh aspect, the second locking mechanism can be inserted into and retracted from the locking hole formed in the slide frame and the fixed frame. And a locking pin that engages with the locking hole when the movable seat portion is switched to the long arrangement.

According to the eighth aspect, when the movable base is switched to the long arrangement, when the slide base slides, the position of the locking hole in the width direction of the vehicle changes.
When the movable seat is switched to the long arrangement, the locking holes face the locking pins. At this time, when the locking pin engages with the locking hole, the slide of the slide base is regulated.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

FIGS. 1A, 1B and 1C show the internal configuration of a railway vehicle 1 as a vehicle. Railway vehicle 1
Is a floor 2 extending along the traveling direction (including both the ascending direction and the descending direction), a pair of side walls 3 provided on both left and right (up and down in the figure) both side edges of the floor 2, and an entrance door 4. It has. The floor 2, the side walls 3, and the entrance door 4 constitute a part of the framework of the railway vehicle 1. On the floor 2, a plurality of two-seater seats 5 are arranged along the left and right side walls 3. Between the rows of left and right seats 5 in the railroad vehicle 1, there are spaces 6 for standing seats and passages.

As shown in FIGS. 6 to 8, each seat 5 includes a fixed base 7, a slide base 8, and a movable seat 9 for two. The fixed base 7 is provided on the floor 2 on the side wall 3.
, A top plate 12 fixed at a position near the side wall 3 at the upper end of the main body frame 11, and an upper portion of the main body frame 11 extending in the width direction of the railway vehicle 1 in parallel with each other. And a pair of guide rails 13. The slide base 8 is mounted on the fixed base 7 so as to be slidable in the width direction of the railway vehicle 1. More specifically,
The slide base 8 includes a pair of slide rails 14 engaged with the respective guide rails 13 from above, and both slide rails 14.
And a slide base plate 15 mounted on the base.
Then, as each slide rail 14 slides on the guide rail 13, the slide base 8 approaches or separates from the side wall 3.

As shown in FIGS. 2 to 5 and 7, each movable seat 9 includes a seat frame 16, a seat 17, a backrest 18, a headrest 19, and two armrests 21, 21. . Of these, the seat 17, the backrest 18, and the headrest 19 are integrally formed by a cushion or the like. The armrests 21 and 21 are attached to the left and right sides of the backrest 18. The seat frame 16 of the movable seat 9 is rotatably supported by the slide base plate 15. More specifically, a rotating main shaft 22 is mounted on a center portion of the slide base plate 15 via a bearing 23. A pair of upper and lower rotating disks 24 are attached to the rotating spindle 22 so as to be integrally rotatable, and the seat frame 16 is fixed to the upper rotating disk 24.

As shown in FIG. 6 and FIG.
A large-diameter gear 25 is attached to the lower end of the lens so as to be integrally rotatable. An electric motor 26 is disposed near the rotating main shaft 22 as a drive source capable of forward and reverse rotation. The drive shaft 27 of the electric motor 26 has a gear 29 having a smaller diameter than the gear 25.
Are mounted via an electromagnetic clutch 28, and this gear 29 is meshed with the gear 25. Therefore, when the electric motor 26 rotates, the rotation is transmitted to the rotating main shaft 22 via the electromagnetic clutch 28 and the two gears 29 and 25. As a result, the rotating main shaft 22 is rotated integrally with the seat frame 16. The electromagnetic clutch 28 allows and interrupts the transmission of rotation from the drive shaft 27 of the electric motor 26 to the rotating main shaft 22. In addition, instead of the electric motor 26 as a drive source,
What is operated by a fluid, for example, an air motor may be used. Similarly, an air clutch other than the above-described electromagnetic clutch may be used as the clutch.

Each seat 5 is provided with a transmission mechanism 31. When the movable seat 9 is rotated by the electric motor 26, the transmission mechanism 31 converts the rotation into a linear motion and transmits the linear motion to the slide base 8, and moves the slide base 8 according to the rotation of the movable seat 9. Railcar 1 with part 9
For sliding in the width direction. As shown in FIG. 7 and FIG.
An arm 33, a second arm 34, and a guide roller 35 as an engagement member are provided. The cam member 32 includes a disk portion 37 having a hole 36 in the center portion, and a bulging portion 38 bulging outward from the disk portion 37, and is attached to the rotating main shaft 22 at the hole 36 so as to be integrally rotatable. . Cam member 32
, A guide hole 41 formed of a first guide 42 and a second guide 43 is provided therethrough. The first guide 42 is the disk portion 3
7, a substantially semicircular arc is formed along a circle centered on the rotating main shaft 22. The second guide 43 extends substantially linearly from one end of the first guide 42 toward the distal end 38 a of the bulging portion 38.

The first arm 33 has an elongated shape, and one end thereof is supported on the fixed base 7 by a first support shaft 44 so as to be tiltable in the horizontal direction. The second arm 34 is the first arm 33
The end is supported by the second support shaft 45 so as to be tiltable in the horizontal direction with respect to the slide base plate 15. The other ends of the first arm 33 and the second arm 34 are mutually connected by a connecting pin 46. Therefore,
By changing the angle formed by the second arm 34 with respect to the first arm 33, the distance from the side wall 3 to the second support shaft 45 can be changed, and the slide base 8 can be slid in the width direction of the railway vehicle 1. is there.

The guide roller 35 is rotatably supported by a shaft 47 at an intermediate portion in the longitudinal direction of the second arm 34. The guide roller 35 is rotatably engaged with the guide hole 41 described above. The position of the guide roller 35 in the guide hole 41 changes as the cam member 32 rotates. The angle formed by the second arm 34 with respect to the first arm 33 as described above changes. Then, the distance from the side wall 3 to the second support shaft 45 changes, and the position of the slide base 8 in the width direction of the railway vehicle 1 changes. When the cam member 32 is rotated in this manner, the rotational motion is converted into a linear motion by the transmission mechanism 31 and transmitted to the slide base 8 and eventually the movable seat 9.

By the slide accompanying the rotation described above,
The movable seat 9 is switched between a long arrangement and a cross arrangement. As shown in FIG. 4 and FIG.
Reference numeral 8 denotes an arrangement state that is substantially parallel to the traveling direction of the railway vehicle 1. In this arrangement, the backrest 18 approaches the side wall 3. The cross arrangement is as shown in FIGS.
Reference numeral 8 denotes an arrangement state substantially orthogonal to the traveling direction of the railway vehicle 1. In this arrangement, the armrest 21 of the seat 5 approaches the side wall 3. When the railway vehicle 1 is traveling in the ascending direction, the back arrangement surface (the surface on the side in contact with the back of the occupant) 18a of the backrest 18 is oriented in the traveling direction when the railway vehicle 1 is traveling in the ascending direction. 1 (b)), and a “downward cross array (see FIG. 1 (c))” in which the backrest surface 18a faces the traveling direction when the railway vehicle 1 is traveling in the downward direction.
There is.

Further, as shown in FIGS. 6 and 8, each of the seats 5 locks the movable seat 9 in a non-rotatable manner when the movable seat 9 is switched between the long arrangement and the cross arrangement. First locking mechanism 48 is provided. First
The locking mechanism 48 includes three notches 49 a, 49 b, 49 c formed at every 90 degrees in the outer peripheral portion of the turntable 24, the first guide cylinder 51 fixed to the slide base plate 15, and the slide base 8. A first solenoid 52 disposed, a stopper pin 53 connected to the first solenoid 52 and inserted through the first guide cylinder 51 from below, and the stopper pin 53
And a coil spring 54 that constantly urges the spring upward.

The notches 49a, 49b and 49c are provided on the rotating disc 24.
When the movable seat portion 9 is in a long arrangement and a cross arrangement, the movable seat portion 9 is located immediately above the first guide cylinder 51. The stopper pin 53 moves up and down in response to energization of the first solenoid 52 and stoppage of energization, so that the notches 49a, 49b,
Engage and disengage with 49c. That is, when the first solenoid 52 is not energized, the stopper pin 53 is pushed up by the coil spring 54. At this time, if the seat 5 is in the long arrangement or the cross arrangement, the stopper pin 5
3 engages with any of the notches 49a, 49b, 49c,
The rotation of the turntable 24 is regulated (locked). When the first solenoid 52 is energized, the stopper pin 53 is pulled down against the coil spring 54 and the notches 49a, 49
b, 49c. The lock by the stopper pin 53 is released, and the turntable 24 can be rotated.

The slide stand 8 is provided with an unlocking pedal 5 for unlocking the rotating disk 24 by the stopper pin 53 even when the first solenoid 52 is not energized.
5 are attached. The unlocking pedal 55 is
6, a base 55a supported on the slide base 8 by a base 6, a pedal main body 55b supported at the tip of the base 55a by a shaft 60 so as to be foldable, and a connecting portion 55c connecting the shaft 60 and the stopper pin 53. ing. When not in use, the pedal main body 55b is set in a substantially vertical state as shown by a two-dot chain line in FIG. When the pedal body 55b is used, the pedal body 55b is substantially horizontal as shown by a solid line in FIG. In the figure, 68 is
When the pedal body 55b is in a horizontal state, the base 55a
And a stopper for restricting further tilting of the pedal body 55b.

To release the lock of the turntable 24 using the lock release pedal 55, the horizontal pedal body 55b is depressed from above. Then, the base portion 55a and the pedal body 55b which are substantially linear with each other are
It tilts downward about the shaft 56 as a fulcrum. With this tilting, the connecting portion 55 c is pulled downward, and the stopper pin 53 is pulled down against the coil spring 54.
As a result, the stopper pin 53 is moved to the notch 49a of the turntable 24.
To 49c, that is, the lock is released.

Further, each seat 5 is provided with a second locking mechanism 57 for locking the movable seat 9 in a non-slidable manner in the long arrangement. The second locking mechanism 57 is provided below the top plate 12 in the fixed pedestal 7, a second guide cylinder 59 fixed to the top plate 12, a locking hole 58 provided through the slide base plate 15. A second solenoid 61, a locking pin 62 connected to the second solenoid 61 and inserted through the second guide cylinder 59 from below, and a coil spring 63 that constantly urges the locking pin 62 upward. It has.

The locking hole 58 is displaced in accordance with the sliding movement of the slide base 8, and is located immediately above the second guide cylinder 59 when the movable seat 9 is in a long arrangement. The locking pin 62 moves up and down in response to energization of the second solenoid 61 and stop of energization, and engages and disengages from the locking hole 58. That is, when the second solenoid 61 is not energized, the locking pin 62 is pushed up by the coil spring 63. Locking pin 62
Engages with the locking hole 58 and regulates (locks) the slide of the slide base plate 15. When the second solenoid 61 is energized, the locking pin 62 is pulled down against the coil spring 63 and detaches from the locking hole 58. The lock by the locking pin 62 is released, and the slide base plate 15 can slide.

As shown in FIG. 8, each seat 5 has an impact absorbing mechanism 64 for reducing the impact when the guide roller 35 reaches the end of the guide hole 41 by rotating and sliding the movable seat 9. Is provided. The shock absorbing mechanism 64 includes the above-described locking pin 62, a housing case 65 fixed to the bottom of the seat frame 16 of the movable seat portion 9, and a rod inserted through the housing case 65 so as to be able to reciprocate in the horizontal direction. 66 and a rod 66 disposed in the storage case 65 and
And a coil spring 67 for urging the lock pin 62 toward the locking pin 62 side. When the arrangement state is switched, the head 66a of the rod 66 comes into contact with the locking pin 62 immediately before the guide roller 35 comes into contact with the wall surfaces of the ends 42a and 43a of the guide hole 41. At this time, the rod 66 is
By retracting while compressing 7, the impact is alleviated.

Next, the operation and effect of the array switching device configured as described above will be described.

The solid lines in FIGS. 9 and 10 indicate that the railway vehicles 1 traveling in the upward direction are not crowded, and that the ride comfort is given priority over securing the space 6 for standing and passageways. It shows a state in which the seat 5 is held in an upward cross-array.

In this state, the power supply to the electric motor 26, the electromagnetic clutch 28, and the solenoids 52 and 61 is stopped. The bulging portion 38 of the cam member 32 faces the upward direction of the railway vehicle 1. The guide roller 35 is located at a boundary between the first guide 42 and the second guide 43. The first arm 33 is substantially orthogonal to the side wall 3, and the second arm 34 is substantially parallel to the side wall 3. The stopper pin 53 urged by the coil spring 54 largely protrudes upward from the first guide cylinder 51, and is engaged with the notch 49a of the turntable 24. By this engagement, the rotation of the turntable 24 is regulated. Locking pin 6 urged by coil spring 63
2 largely protrudes upward from the second guide cylinder 59 and engages with the locking holes 58 of the slide base plate 15. Note that the position of the rotary spindle 22 at this time is referred to as a “reference position”.

When switching from the upward cross arrangement to the long arrangement, the first solenoid 52 and the electromagnetic clutch 28 are used.
And the electric motor 26 is energized. The rotation of the electric motor 26 by the energization causes the electromagnetic clutch 28 and the two gears 2 to rotate.
The power is transmitted to the rotating main shaft 22 via the first and second rotating shafts 9 and 25. By the excitation of the first solenoid 52, the stopper pin 53 is pulled down and detaches downward from the notch 49a.
The rotation regulation for the turntable 24 of No. 3 is eliminated. Similarly, the locking pin 62 is pulled down by the excitation of the second solenoid 61. Therefore, as shown by a two-dot chain line in FIGS. 9 and 10, the cam member 32 and the turntable 24 rotate integrally with the rotary main shaft 22, and the movable seat 9 moves in the direction of arrow A (as viewed from above the railway vehicle 1). Start rotation in the counterclockwise direction).

The guide hole 41 is displaced in accordance with the rotation of the cam member 32, and the guide roller 35 is
Roll along. More specifically, the guide roller 35
Rolls from the boundary between the first guide 42 and the second guide 43 toward the end 43a of the second guide 43. During this rolling, a force toward the space 6 acts on the guide roller 35. This force is transmitted to the slide base 8 and the movable seat 9 via the second arm 34 and the second support shaft 45. Accordingly, the movable seat portion 9 is displaced toward the space 6 while being rotated about the rotating main shaft 22 in the direction of arrow A.

Here, the guide hole 41 has a substantially semi-circular first guide 42 and a substantially linear second guide 43 as described above.
In the case of the special shape of FIG. 15, as shown by the characteristic line L1 in FIG.
During the period until 2 rotates about 35 °, the rotating spindle 22 is displaced from the reference position toward the space 6, and when further rotated, the rotating spindle 22 is displaced toward the reference position. That is, the direction of displacement of the rotary spindle 22 is reversed at about 35 °. Then, when the rotary shaft 22 is rotated by 60 ° from the upward cross array, the rotating main shaft 22 returns to the reference position. Further, when the rotating spindle 22 rotates, the rotating spindle 22 is displaced from the reference position toward the side wall 3 as the rotation proceeds. Note that, in the figure, the distance G between the characteristic lines L1 and L2 (the vertical width of the hatched portion in the figure) indicates the size of the gap between the movable seat 9 and the side wall 3.

As shown in FIGS. 11 and 12, when the rotary spindle 22 is rotated by approximately 90 ° from the state shown in FIGS. 9 and 10,
The bulging portion 38 of the cam member 32 faces the space 6 side. The guide roller 35 approaches the end 43a of the second guide 43,
The angle between the second arm 34 and the first arm 33 is reduced. The notch 49 b shifts with the rotation of the turntable 24 and is located immediately above the first guide cylinder 51. When the power supply to the first solenoid 52 is stopped, the stopper pin 53 urged by the coil spring 54 engages with the notch 49b to regulate the rotation of the rotary main shaft 22. The guide roller 35 is located near the wall surface of the end 43 a of the second guide 43, and the locking hole 58 of the slide base plate 15 is located immediately above the second guide cylinder 59. When the power supply to the second solenoid 61 is stopped, the locking pin 62 is pushed up by the coil spring 63 and the locking hole 5 is stopped.
Join 8 The head 6 of the rod 66 is
6a comes into contact, and further rotation of the movable seat portion 9 is restricted. At this time, since the rod 66 is retracted while compressing the coil spring 67, the impact accompanying the contact is reduced.

Further, since the second guide 43 is substantially parallel to the width direction of the railway vehicle 1, if a stress in the same direction acts on the guide roller 35, the guide roller 35 and thus the movable seat 9 slide suddenly. There is a risk. But,
At this time, the locking pin 62 engaged in the locking hole 58 regulates the sliding of the movable seat 9.

When the above-described series of switching operations are performed on one seat 5, the same switching operation is continuously performed on the adjacent seat 5. When all the seats 5 are switched to the long arrangement, the space 6 for the standing seat and the passage is maximized. Although not described, when switching from the long arrangement to the upward cross arrangement, a switching operation reverse to the above-described operation is performed.

As described above, according to the present embodiment, the rotation of the movable seat 9 about the rotating main shaft 22 is transmitted by the transmission mechanism 31.
, And is transmitted to the slide base 8. By this transmission, the slide base 8 is slid in the width direction of the railway vehicle 1 together with the movable seat 9 in accordance with the rotation of the movable seat 9. Then, by the slide accompanying the rotation, the arrangement state is switched between the upward cross arrangement and the long arrangement. Therefore, unlike the related art in which a mechanism for rotating the movable seat portion and a mechanism for sliding the movable seat portion are separately provided, the arrangement state can be switched only by rotating the movable seat portion 9 about the rotating main shaft 22. . In addition, since the rotation and sliding of the movable seat 9 are performed almost simultaneously in cooperation with each other, when these operations are separately performed, that is, the movable seat is once slid in a direction away from the side wall, and then the movable seat is moved. The time required from the start to the end of the switching of the arrangement can be reduced as compared with the case where the movable seat is rotated and then the movable seat is slid in a direction to approach the side wall.

Next, a case of switching from the upward cross arrangement to the downward cross arrangement will be described with reference to FIGS. In this case, the electric motor 26 is rotated in the opposite direction. The rotation is performed by the electromagnetic clutch 28
And transmitted to the rotating main shaft 22 via both gears 29 and 25. When the first solenoid 52 is excited, the stopper pin 53
Is pulled down and detaches downward from the notch 49a. Similarly, when the second solenoid 61 is excited, the locking pin 62
Is reduced. Therefore, the cam member 32 and the rotary disk 24 rotate integrally with the rotary main shaft 22. Accordingly, the movable seat 9 starts rotating in the direction opposite to the arrow A (clockwise as viewed from above the railway vehicle 1).

The guide hole 41 is displaced in accordance with the rotation of the cam member 32, and the guide roller 35 is
Roll along. More specifically, the guide roller 35
Rolls from the boundary between the first guide 42 and the second guide 43 toward the end 42 a of the first guide 42. Here, since the first guide 42 has a substantially semicircular shape centered on the rotary main shaft 22, even if the cam member 32 rotates and the positional relationship between the first guide 42 and the guide roller 35 changes. , Guide roller 35 to space 6 side or side wall 3
The force for displacing to the side hardly acts. Therefore, the movable seat portion 9 is rotated about the rotary main shaft 22 without substantially sliding in the width direction of the railway vehicle 1.

When the rotary main shaft 22 is rotated by approximately 180 ° as shown by a two-dot chain line in FIG. 14, the notch 49c is located immediately above the first guide cylinder 51. 1st solenoid 5
By stopping the power supply to 2, the stopper pin 53 urged by the coil spring 54 engages with the notch 49c. By this engagement, the rotation of the rotating main shaft 22 is restricted. When the guide roller 35 rolls to the vicinity of the wall surface of the end 42 a of the first guide 42, by stopping the power supply to the second solenoid 61,
The locking pin 62 is pushed up by the coil spring 63. The head 66a of the rod 66 comes into contact with the locking pin 62, and further rotation of the rotary main shaft 22 is restricted. At this time, since the rod 66 is retracted while compressing the coil spring 67, the impact accompanying the contact is reduced.

When the above-described series of switching operations are performed on one seat 5, the same switching operation is continuously performed on the adjacent seat 5. When all the seats 5 are switched to the downward cross arrangement, the space 6 for standing and aisle is minimized.

This embodiment has the following features other than those described above.

(A) By using only one power source (electric motor 26), the arrangement of the seats 5 can be switched by sliding the movable seat 9 while rotating it. Therefore, the arrangement switching device can be simplified as compared with a case where a power source for sliding the movable seat portion 9 and a power source for rotating the movable seat portion 9 are separately provided. Accordingly, an array switching device can be established at low cost.

(B) The transmission mechanism 31 for rotating and sliding the movable seat 9 is formed by a small number of components such as the cam member 32, the first arm 33, the second arm 34, and the guide roller 35. Therefore, by using the transmission mechanism 31 in the arrangement switching device, the number of components can be reduced and the device can be simplified.

(C) A non-circular guide hole 4 is formed in the cam member 32.
The guide roller 35 is slidably engaged in the guide hole 41. With such a very simple configuration, the guide roller 35 can be engaged with the cam member 32 so that the guide roller 35 can be displaced in the width direction of the railway vehicle 1 according to the rotation of the cam member 32.

(D) The guide roller 35 that rotates about the shaft 47 is used as the engaging member. For this reason,
When the guide roller 35 rolls on the wall surface of the guide hole 41, the friction generated between the two rollers 35 and 41 is smaller than when the guide roller 35 does not rotate and slides in contact with the wall surface of the guide hole 41. . Therefore, the rotation of the cam member 32 and the movable seat portion 9 can be efficiently converted to linear motion and transmitted to the slide base 8.

(E) Since the first locking mechanism 48 is provided, when the movable seat 9 is switched to either the long arrangement or the cross arrangement, the movable seat 9 is non-rotatably locked. . Therefore, it is possible to prevent the movable seat portion 9 from rotating carelessly when the arrangement is not switched.

(F) When the movable seat portion 9 is switched to the long arrangement, the movable seat portion 9 is locked by the second locking mechanism 57 so as not to slide. Therefore, it is possible to prevent the movable seat portion 9 from sliding carelessly when the arrangement is not switched.

(G) The locking pin 62, which is a component of the second locking mechanism 57, is used as a component of the shock absorbing mechanism 64. Thus, one component (locking pin 6
Since 2) has both functions, the number of components of the entire arrangement switching device can be reduced accordingly.

(H) Since the unlocking pedal 55 is attached to the slide base 8, by operating this pedal 55 with a foot, even when the first solenoid 52 is not energized, the rotating disk is driven by the stopper pin 53. 24 can be unlocked. The pedal body 55b of the unlocking pedal 55 can be stored in the slide base 8 when not in use. This prevents the pedal main body 55b from projecting toward the space 6 and hindering passage.

The present invention can be embodied in another embodiment shown below.

(1) The headrest 19 of the movable seat 9 may be omitted, or the armrest 21 may be omitted. Alternatively, the seat 17 and the backrest 18 may be separately provided, and the backrest 18 may be attached to the seat 17 so as to be reclined. In short, the movable seat 9 only needs to have at least a seat and a backrest.

(2) The present invention is not limited to the railway vehicle 1, but may be embodied in various vehicles, such as buses and ships, for carrying a large number of people at once.

(3) The electric motor 26, the electromagnetic clutch 28, the gears 25 and 29, etc. in the above embodiment are omitted.
The configuration in which the movable seat portion 9 is rotated and slid only by manual operation may be changed.

(4) Instead of the guide hole 41, the cam member 32
A groove having the same planar shape as the guide hole 41 is formed in
This groove may be used as a guide. With this configuration, the same operation and effect as those of the above embodiment can be obtained.

(5) Instead of the guide roller 35, a cylindrical pin may be non-rotatably mounted on the second arm 34, and this pin may be used as an engaging member. By doing so, the engagement member can be formed at a lower cost than the guide roller 35.

(6) Instead of the second arm 34, a guide roller 35 may be attached to the first arm 33. Even in this case, the same operation and effect as in the above embodiment can be obtained.

(7) A cylinder may be used instead of the first solenoid 52 and the second solenoid 61.

[0071]

As described above, according to the first aspect, the arrangement state of the seat is switched between the long arrangement and the cross arrangement in a shorter time than when the sliding and rotation of the movable seat portion are performed separately. be able to.

According to the second aspect, in addition to the effects of the first aspect, the transmission mechanism can be established with a small number of components. Therefore, if this transmission mechanism is used in the arrangement switching device of the first invention, the number of components can be reduced and the device can be simplified.

According to the third aspect, in addition to the effect of the second aspect, with a simple configuration in which the engagement member is slidably engaged with the guide hole, the widthwise direction of the vehicle follows the rotation of the cam member. The engaging member can be engaged with the cam member so as to be displaceable.

According to the fourth aspect, in addition to the effect of the third aspect, the friction between the wall surface of the guide hole and the engaging member during rotation of the cam member can be reduced. For this reason, the rotation of the cam member and the movable seat portion can be efficiently converted into linear motion and transmitted to the slide base.

According to the fifth aspect, in addition to the effects of the first to fourth aspects, it is possible to prevent the movable seat portion from rotating carelessly at the time of non-arrangement switching.

According to the sixth aspect of the present invention, the stopper pin is made to protrude and retract according to the rotation angle of the movable seat portion, so that the stopper pin is engaged with the notch of the turntable to restrict the rotation of the movable seat portion. . Therefore, this mechanism is suitable as the first locking mechanism of the fifth invention.

According to the seventh invention, in addition to the effects of the first to sixth inventions, it is possible to prevent the movable seat portion from sliding carelessly at the time of non-arrangement switching.

According to the eighth aspect of the present invention, the locking pin is caused to protrude and retract according to the sliding amount of the movable seat portion, so that the locking pin can be engaged with the slide base to restrict the sliding of the movable seat portion. Therefore, this mechanism is suitable as the second locking mechanism of the seventh invention.

[Brief description of the drawings]

FIGS. 1A to 1C are partial plan views showing a railway vehicle when a seat according to an embodiment of the present invention is switched to a long arrangement, an upward cross arrangement, or a downward cross arrangement.

FIG. 2 is a side view showing a state where the seats in a cross arrangement according to one embodiment of the present invention are viewed from a passage.

FIG. 3 is a rear view showing a cross-arranged seat according to an embodiment of the present invention when viewed in a traveling direction.

FIG. 4 is a front view showing a state where a long array of seats according to an embodiment of the present invention is viewed from a passage.

FIG. 5 is a side view showing a state where a long-arranged seat according to an embodiment of the present invention is viewed in a traveling direction.

FIG. 6 is a sectional view showing a lower portion of a seat according to an embodiment of the present invention.

FIG. 7 is a sectional view showing a VII-VII section of FIG. 6;

FIG. 8 is a plan view showing a lower portion of a seat according to an embodiment of the present invention.

FIG. 9 is a plan view showing a relationship between a cam member and each arm when switching a seat from an upward crossing arrangement to a long arrangement according to an embodiment of the present invention.

FIG. 10 is a plan view showing a state in which a seat according to an embodiment of the present invention is switched from an upward crossing arrangement to a long arrangement.

FIG. 11 is a plan view showing a relationship between a cam member and each arm when a seat according to an embodiment of the present invention is switched to a long arrangement.

FIG. 12 is a plan view showing a state where a seat according to an embodiment of the present invention is switched to a long arrangement.

FIG. 13 is a plan view showing a relationship between a cam member and each arm when the seat according to the embodiment of the present invention is switched from an upward cross arrangement to a downward cross arrangement.

FIG. 14 is a plan view showing a state in which a seat according to an embodiment of the present invention is switched from an upward cross arrangement to a downward cross arrangement.

FIG. 15 is a diagram illustrating a relationship between a rotation angle and a sliding amount of a movable seat unit according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Railway vehicle as a vehicle 5 Seat 7 Fixed gantry 8 Slide gantry 9 Movable seat part 17 Seat part 18 Backrest part 22 Rotating main shaft as axis 31 Transmission mechanism 32 Cam member 33 First arm 34 Second arm 35 As engagement member Guide roller 41 Guide hole 48 First locking mechanism 49a, 49b, 49c Notch 53 Stopper pin 57 Second locking mechanism 58 Lock hole 62 Lock pin

Claims (8)

[Claims] 1. A fixed gantry fixed to a vehicle, a slide gantry slidably mounted on the fixed gantry in a width direction of the vehicle, and at least a seat and a backrest, wherein the slide gantry is provided by a shaft. A movable seat portion rotatably mounted on the movable seat portion; when the movable seat portion is rotated, the rotation is converted into a linear motion and transmitted to a slide frame, and the slide frame is moved according to the rotation of the movable seat portion. A transmission mechanism that slides in the width direction of the vehicle together with the vehicle, wherein the movable seat is slid by the rotation so that the backrest thereof is substantially parallel to the traveling direction of the vehicle; An arrangement switching device for a vehicle seat, wherein the section is switched to a cross arrangement substantially orthogonal to a traveling direction of the vehicle. 2. The transmission mechanism includes: a cam member rotatably attached to the shaft; a first arm supported by the fixed base; and a first arm supported by the slide base and connected to the first arm. A second arm provided on one of the first arm and the second arm and engaged with the cam member so as to be displaceable in the width direction of the vehicle in accordance with the rotation of the cam member. The vehicle seat arrangement switching device according to claim 1, further comprising a joining member. 3. The cam member according to claim 2, wherein the cam member has a non-circular guide hole, and the engaging member is slidably engaged in the guide hole. Vehicle seat arrangement switching device. 4. The method according to claim 1, wherein the engaging member includes a first arm or a second arm.
4. The vehicle seat arrangement switching device according to claim 3, wherein the device is a guide roller rotatably supported by an arm and rolling in the guide hole according to rotation of the cam member. 5. 5. The system according to claim 1, further comprising a first locking mechanism for locking the movable seat portion so that it cannot rotate when the movable seat portion is switched to one of the long arrangement and the cross arrangement. The vehicle seat arrangement switching device according to any one of claims 1 to 4, wherein: 6. The rotating mechanism according to claim 6, wherein the first locking mechanism is attached to the shaft so as to be integrally rotatable and has a plurality of cutouts on an outer periphery thereof; The vehicle seat arrangement switching device according to claim 5, further comprising: a stopper pin that engages with the notch when the switch is switched to one of a long arrangement and a cross arrangement. 7. A system according to claim 1, further comprising a second locking mechanism for locking said movable seat so as not to slide when said movable seat is switched to the long arrangement. An arrangement switching device for a vehicle seat according to any one of the preceding claims. 8. The second locking mechanism includes: a locking hole formed in the slide base; and a second locking mechanism that is mounted on the fixed base so as to be able to protrude and retract, and the movable seat is switched to a long arrangement. The arrangement switching device for a vehicle seat according to claim 7, further comprising a locking pin that engages with the stop hole.