JPH1016773A - Vehicular reversible seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive vehicular reversible seat that is able to use a long seat and a cross seat jointly in a simple structure without requiring any driving power source. SOLUTION: This reversible seat is provided with a support base locket to the floor of a vehicle, a seating part 6 supported by this support base free of slide motion in the horizontal direction, and a seat back 7 attached to this seating part 6, respectively. In a cross seat state that this seating part 6 takes a position facing the front or rear in the traveling direction of the vehicle, a first shaft 21 is shifted so as to separate from a side face 10 of the vehicle along a first guide groove 17 as rotating the seating part 6 with a second shaft 22 as the center, and then the seating part 6 is rotated with the first shaft 21 as the center, shifting the second shaft 22 along a second guide groove 18, and the seating part 6 is made into a long seat state that the seating part 6 takes a seat with the vehicle as the back. On the other hand, in the case where this seating part 6 is converted into the cross seat state from the long seat state, the procedure takes place in reverse.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle convertible stool used for vehicles such as railway vehicles.

[0002]

2. Description of the Related Art A stool of a railway vehicle is provided with a stool in the longitudinal direction of the vehicle, a long seat which sits on the back of a window on the side of the vehicle, and a stool in the direction of a railroad tie. Alternatively, there are two types of cross seats that sit opposite the direction of travel. Since the above-mentioned long seat can increase the number of standing seats, the long seat is used in commuting vehicles and the like. On the other hand, the above-mentioned cross seats are generally preferred by passengers because the scenery along the railway line is easy to see and can sit comfortably, and the cross seats are adopted in many vehicles running in the suburbs.

[0003] By the way, many railcars are operated for a long time from early morning to late at night, and the inside of the car is crowded during morning and evening rush hours. On the other hand, there is a demand to provide a seat that is as relaxed as possible when the vehicle is at a stop or on a route at a sightseeing spot, etc.

Therefore, conventionally, in the same vehicle,
There is a fully automatic convertible stool that can be used as a long seat and a cross seat by rotating and moving a stool by a plurality of driving motors as needed, and changing a backrest.

[0005]

However, the above-mentioned fully automatic conversion seat requires a power source for driving, and
There is a disadvantage that the structure is complicated and the cost is high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a low-cost vehicle convertible stool that does not require a power supply for driving and can be used as a long seat and a cross seat with a simple structure.

[0007]

In order to achieve the above object, a vehicle convertible stool according to a first aspect of the present invention includes a support fixed to a floor of a vehicle, and a support slidably supported by the support in a horizontal direction. The seating portion, the backrest attached to the seating portion, and a first guide groove and a second guide groove fixed to the bottom surface side of the seating portion at a predetermined interval, respectively. In a first seat state in which the seating portion is provided with a guided first shaft and a second shaft and the seating portion faces forward or rearward in the traveling direction of the vehicle, the seating portion is centered on the second shaft. After moving the first shaft along the first guide groove so as to separate from the side surface of the vehicle while rotating the seat, the seat is rotated about the first shaft, and the second shaft is The seat is moved along the second guide groove, and the seat is seated with the side of the vehicle as a back. While the second sheet state,
In the second seat state in which the seating portion sits with the side surface of the vehicle as a back, the seating portion is rotated about the first axis to move the second axis along the second guide groove. Then, while rotating the seat around the second axis, the first shaft is moved along the first guide groove so as to approach the side surface of the vehicle, so that the seat advances the vehicle. It is characterized in that it is in the first seat state in which it faces forward or backward in the direction.

According to the vehicle conversion seat of claim 1,
For example, in a railway vehicle, a plurality of seats are arranged in a first seat state, a so-called cross seat state, in which a plurality of seats are seated facing forward or rearward in a traveling direction at intervals in a longitudinal direction of the vehicle, and the seats are arranged on a second shaft. The first shaft is moved away from the side of the vehicle along the first guide groove while rotating about the first shaft, and then the seating portion is rotated about the first shaft to move the second shaft to the second shaft.
By moving along the guide groove, the seat portion is in a second seat state in which the seat is seated with the side surface of the vehicle as a back, that is, a so-called long seat state in which the side surfaces of adjacent seat portions contact each other.
On the other hand, after the seat is rotated about the first shaft and the second shaft is moved along the second guide groove from the long seat state in which the side of the vehicle is seated, the seat is moved to the second seat. The first shaft is moved along the first guide groove so as to approach the side of the vehicle while rotating about the shaft, so that the seating portion is in a cross seat state in which the seating portion faces forward or backward in the traveling direction.
As described above, even if one side surface of the seating portion is arranged so as to be in contact with the side surface of the vehicle in the cross seat state, the first shaft is separated from the side surface of the vehicle along the first guide groove to form the long seat state. By converting, in the long seat state, the side of the vehicle and the backrest side of the seating portion are separated to secure a space for the backrest. In the cross-seat state, while providing a relaxed seat, the cross-seat state is changed to a long-seat state, and the passage is widened so that as many passengers as possible can be carried. Time can be reduced. Therefore, it is possible to realize a low-cost vehicle convertible stool that does not require a driving power source and has both a simple structure and a long seat and a cross seat.

According to a second aspect of the present invention, there is provided a convertible stool for a vehicle according to the first aspect of the present invention, wherein the first seat state and the side surface of the vehicle are positioned facing forward or rearward in the traveling direction of the vehicle. A seating portion return means for rotating the seating portion to return from one of the second seating states to the other side, and the seating section in the first seating state and the second seating state. A seat fixing means for fixing to the support table so as not to rotate.

[0010] According to the vehicle conversion seat according to the second aspect,
From the first sheet state to the second sheet state or the second sheet state
When the seat state is changed to one of the first seat states, the seating portion can be automatically returned by rotating the seating portion by the seating portion returning means. Further, in the first seat state and the second seat state, the seating portion is fixed to the support base by the seating portion fixing means, so that the passenger leans on the converted seating due to the swaying, acceleration, and deceleration of the vehicle. Even if an external force acts on the seat, the seating portion does not turn to ensure passenger safety.

According to a third aspect of the present invention, in the second aspect of the present invention, the seat return means is a return device with a hydraulic damper.

According to the vehicle conversion seat of claim 3,
The restoring device with the hydraulic damper slowly rotates and returns the above-mentioned seating part, so that the seating part can be returned quietly with little impact, and the seating part can be safely returned even when a person is near when switching. be able to.

According to a fourth aspect of the present invention, there is provided a vehicle convertible stool according to any one of the first to third aspects.
A support member for supporting the backrest so as to be tiltable within a predetermined angle range around two lower fulcrums on an extension line along both sides of the backrest, and a support member attached to both sides of the seat portion, A sliding means for moving the seat back in a substantially horizontal direction along both side surfaces of the seat portion, and the backrest being tilted from one of the other sides to the other, and the support member being slid by the sliding means in a direction in which the backrest tilts. A restoring device with a hydraulic damper for restoring the backrest, and a seat for preventing the backrest from moving in a restoring state in which the backrest is restored by the restoring device with the hydraulic damper and a non-restoring state before restoring the backrest. And a backrest fixing means for fixing to the part.

According to the vehicle conversion seat of the fourth aspect,
Since the backrest tiltably supported by the support member is slid in the direction in which the backrest is tilted by the return device with the hydraulic damper in a direction substantially parallel with the support member by the slide means, the backrest can be slowly changed without lifting the backrest. Accordingly, since there is no structure for lifting the backrest, the backrest can be easily returned by the return device with the hydraulic damper. In addition, since the backrest is fixed to the seating portion by the backrest fixing means, the passenger leans on the conversion seat due to the swinging, acceleration, and deceleration of the vehicle, so that even if an external force acts on the backrest, the backrest is not changed. , Ensuring passenger safety.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle convertible seat according to the present invention.

FIG. 1A is a view showing a long seat in a case where a vehicle convertible stool according to an embodiment of the present invention is used in a railway vehicle.
FIG. 1 (b) is a front view of the convertible stool, showing a (placement of the convertible stool such that the side of the vehicle is seated on the back).
FIG. 1 (c) is a side view of the conversion seat.

1 (a) to 1 (c), reference numeral 1 denotes three for two persons arranged in the longitudinal direction of the vehicle such that the backrest 5 attached to the seating portion 4 is on the side surface 10 of the vehicle. The convertible stool 2 is a convertible stool for one person, which is adjacent to the convertible stool 1 for two people and is arranged such that the backrest 7 attached to the seating portion 6 becomes the side surface 10 of the vehicle. The seat 4 of the convertible stool 1 for two persons and the seating part 6 of the convertible stool 2 for one person are supported by the support 3. The above-mentioned three two-person conversion stools 1 and one one-person conversion stool 2
7 seats in a long seat state. And the above three convertible stools 1 and 1
Each of the single conversion stools 2 is rotated to convert to a cross sheet state as a first sheet state indicated by a dotted line.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
It is the schematic of the cross section of the conversion stool 2 for people. In the case of the convertible stool 1 for two persons, the width of the seating portion and the width of the backrest are almost doubled, and the other configurations are the same. In FIG. 2, the first and second guide grooves 17, 18 and the first and second shafts 2 are shown.
The positions of 1, 22 are shown in FIG.
It differs from the position shown in FIG.

As shown in FIG. 2, a box-shaped support 3 fixed to the floor 20 of the vehicle slides the seat 6 in a horizontal direction through a plurality of rollers 23 (only two are shown in FIG. 2). It is movably supported. Further, first and second guide grooves 17 and 18 are formed on the upper side of the support table 3, and first and second shafts 21 and 22 fixed to the bottom surface of the seating portion 6 with a predetermined interval are formed. The distal ends of the first and second shafts 21 and 22 are fixed to a slide fitting 13 having a substantially C-shaped cross section in the support base 3 through the first and second guide grooves 17 and 18. One end of a lever 12 is slidably attached to the slide fitting 13 via a roller 14, and the other end of the lever 12 is fixed to a pinion shaft 15 of a door closer 11 as seating portion returning means fixed to the support base 3. I have. Further, a solenoid SOL1 as a seat fixing means having a lock pin 26 is attached to the upper side of the support base 3, and the lock pin 26 fits into a recess 25 provided below the seat 6. In addition, two concave portions 25 are provided on the bottom surface side of the seating portion 6 so that the lock pin 26 is fitted when the seating portion 6 is in the cross seat state and in the long seat state. When the solenoid SOL1 is not energized, the lock pin 26 protrudes due to a built-in spring force,
When the solenoid SOL1 is excited, the lock pin 26 is retracted and comes out of the recess 25.

FIG. 3 shows a cross-seat state in which the conversion seat 2 faces forward or backward in the longitudinal direction of the vehicle, and the axis coincides with a point O ₁ substantially at the center of the bottom surface of the seating section 6. The first shaft 21 is arranged. And the point O
₁ is R, including point O ₁ and side 1 of the vehicle
From parallel vertical plane to the vehicle center aisle to sigma / 2 distant points P ₁ to 0, and disposing the second shaft 22 so that the axis coincides. Further, the first guide groove 17 of the support base 3 is connected to a point P1.
Has an arcuate radius R centered on, from the point O _1, the first shaft 21 to the O ₂ point where the amount of movement of the opposite direction to the perpendicular direction and the side surface 10 to the longitudinal direction of the vehicle is σ invite.
On the other hand, the second guide groove 18 of the support 3 has an arc shape with a radius R around the point O ₂ , and a vertical plane including the point O ₁ and perpendicular to the side surface 10 of the vehicle from the point P _1. From the point P ₁
/ 2 distant point to P ₂ for guiding the second shaft 22.

FIGS. 4 (a) to 4 (c) and FIGS. 5 (a) to 5 (c) show that the seating portion 6 of the conversion seat 2 is rotated from the cross seat state (non-return state) to the long seat state (non-return state). (Return state). In addition, the seating portion 4 (indicated by a two-dot chain line) of the conversion stool 1 for two persons changes in the same manner. FIG. 4 (a)
(C), the first and second shafts 21 and 22 and the first and second guide grooves 1
Reference numerals 7 and 18 are indicated by solid lines to make the figure easier to see.

FIG. 4A shows the state of the first and second shafts 21 and 22 of the seating portion 6 and the first and second guide grooves 17 and 18 of the support base 3 in the same cross seat state as in FIG. FIG. 5A shows the state of the lever 12 and the slide fitting 13 rotated by the door closer 11 at that time. In FIG. 5A, when the lever 12 rotates counterclockwise by the door closer 11, the tip of the lever 12 slides along the slide fitting 13 via the roller 14 (shown in FIG. 2). Is rotated counterclockwise about the second shaft 22. Then, the seat 6 rotates counterclockwise about the second shaft 22 located at the point P ₁ , as shown in FIGS. 4 (b) and 5 (b).
The first shaft 21 is moved being guided to the position of the point O ₂ to the first guide groove 17.

Further, when the lever 12 is rotated counterclockwise by the door closer 11 from the state shown in FIG.
While the tip of 2 slides along the slide fitting 13 via the roller 14, the slide fitting 13 is rotated counterclockwise about the first shaft 21. Then, the seat 6 rotates counterclockwise about the first shaft 21 located at the point O ₂ , as shown in FIG.
(c), as shown in FIG. 5 (c), the second shaft 22 is
It is guided by the 8 to move to the position of P _2.

FIG. 6 is a view for explaining the conversion operation of the backrest of the conversion seat 2. As shown in FIG.

As shown in FIG. 6, the seat 6, which is rotatably supported by the plurality of rollers 23 and the first and second shafts 21, 22 on the support table 3, has a side surface (in FIG. 6) of the seat 6. A fixed plate 33 is attached at a predetermined interval to the right side) so that a lever 31 described later can move between the fixed plate 33 and the side surface of the seating section 6 (see FIG. 7). The fixed plate 33
On the other hand, a slide bearing 34 as a slide means is attached to the other side surface of the seating portion 6. Then, a support member 35 having a substantially isosceles triangular shape with a vertex on the lower side of the slide portion of the two slide bearings 34, 34,
Each of the support members 35 is fixed, and the support members 35, 35 are slidable in the horizontal direction along the side surface of the seat portion 6 by slide bearings 34, 34 (see FIG. 7). Cylindrical stoppers 38, 38 (only one is shown in FIG. 6) near both ends of the slide bearing 34 of the right fixing plate 33 in the figure.
Are fixed, so that the support member 35 stops at both ends of the slide bearing 34.

Further, arms 36, 46 extending downward along both side surfaces of the backrest 7 are provided.
The distal end side of 46 is rotatably attached to the vicinity of the lower ends of the support members 35, 35 via pins 37 (see FIG. 7). Arms 36, at both upper ends of the support members 35, 35,
Stoppers 35a, 35a (shown in FIG. 7) are provided to limit the tilting of 46 to a predetermined angle range. Also, an elongated hole 31a (shown in FIG. 7) is formed at one end of the lever 31.
The arm 36 is slidably attached to the lever 31 via a pin 32 penetrating the elongated hole 31a (see FIG. 7). A circular hole 48 is provided near the lower end of the lever 31, and a door closer 30 as a return device with a hydraulic damper attached to the bottom surface of the seat portion 6 with the circular hole 48 side from the center of the lever 31.
Is attached to the pinion shaft 39. Solenoids SOL2, SOL2 as backrest fixing means are provided on the distal end side of a mounting bracket 47 having an L-shaped cross section fixed to the bottom side of the seating section 6.
SOL3 (only the solenoid SOL2 is shown in FIG. 6) is attached. When the solenoids SOL2 and SOL3 are not excited, the lock pin 49 having a hemispherical tip protrudes due to a spring force, and the lock pin 49 fits into the circular hole 48 of the lever 31 when the backrest 7 returns or does not return. On the other hand, when the solenoids SOL2 and SOL3 are excited, the lock pin 49 is retracted, and the lock pin 49 comes off from the circular hole 48 of the lever 31.

FIG. 7 is a side view of the conversion seat 2 when the backrest 7 is in the return state A. The backrest 7 is tilted to the left in the drawing, and the arm 36 comes into contact with one stopper 35a of the support member 35. At the same time, the support member 35 is in contact with one stopper 38. The lock pin 50 of the solenoid SOL3 is fitted in the circular hole 48 of the lever 31 to lock the lever 31 so as not to move. From the return state A shown in FIG. 7, the backrest 7 is manually pushed with a force greater than the spring force of the door closer 30 to move the lever 31 to the pinion shaft 3.
When the pin 32 is rotated in the direction of arrow D1 around the center 9, the backrest 7 tilts in the direction of arrow D2 with the pin 37 as a fulcrum, while the pin 32 is guided by the elongated hole 31a of the lever 31.
Comes into contact with the other stopper portion 35a of the support member 35, and the backrest 7 is in the state B. Furthermore, when the backrest 7 is manually pushed to overcome the return torque of the door closer 30 and the lever 31 is rotated in the direction of the arrow D1, the support member 35 is horizontally moved along the side surface of the seating portion 6 by the slide bearing 34. Then, the backrest 7 moves in the direction of arrow D3. Then, the support member 35 comes into contact with the other stopper 38 and stops, and the backrest 7 is stopped.
Is in the non-return state C, the lock pin 49 of the solenoid SOL2 is fitted into the circular hole 48 of the lever 31 to lock the lever 31 so as not to move, and the backrest 7 is moved from the return state A to the non-return state C. The conversion ends.

On the other hand, when the solenoid SOL2 is excited and the lock pin 49 is pulled out of the circular hole 48 of the lever 31 from the non-return state C shown in FIG. 7, the lever 31 is returned to the pinion shaft 39 by the return torque of the door closer 30. Rotate counterclockwise around the center of the backrest 7 and pin 32
The arm 36 is tilted counterclockwise about the pin 37 while being guided by the one long hole 31a, and the arm 36 contacts the stopper 35a of the support member 35. Further, the above door closer 3
When the lever 31 is rotated counterclockwise by a return torque of 0, the support member 35 is moved horizontally by the slide bearing 34, and the backrest 7 is moved leftward in the figure.
Then, the support member 35 comes into contact with the stopper 38 and stops, and the backrest 7 is in the return state A, and the lock pin 49 of the solenoid SOL2 is fitted into the circular hole 48 of the lever 31 so that the lever 31 does not move. And the conversion of the backrest 7 from the non-return state C to the return state A is completed.

FIGS. 8 and 9 show a control circuit of the above-described conversion stool 2. Although not shown, the conversion stool 1 for two persons also has a similar control circuit. With the above control circuit,
When the vehicle is shaken, accelerated, or decelerated during the operation of the vehicle, even if an external force acts on the convertible stool 2 such as a passenger leaning, the convertible stool 1,2 rotates or the backrest 5,7. To prevent passengers from changing over, ensuring passenger safety.

As shown in FIG. 8, a terminal 1 for an output contact of a push button PB1 is connected to one of the general control power supply lines. The terminal COM of the limit switch LS1 is connected to the output contact terminal 2 of the push button PB1. The terminal 1 of the switch SW is connected to one terminal L of the limit switch LS1, and the terminal 2 of the switch SW is connected to the other terminal C of the limit switch LS1. The switch SW has two switching circuits,
A switching position “L → C” where terminal 1 and terminal 3 are connected, terminal 4 and terminal 6 are connected, terminal 2 and terminal 3 are connected,
The terminal is switched to one of the switching positions “C → L” where the terminals 5 and 6 are connected. One end of the relay R1 is connected to the terminal 3 of the switch SW, and the other end of the relay R1 is connected to the other end of the control power supply line. The relay R1 has four output contacts, of which the terminal 1 for the first output contact is connected to one of the control power supply lines and the terminal 2 for the first output contact is connected to the terminal COM of the limit switch LS1. Connected to Note that the limit switch LS1 is
It switches with the rotation operation of the seating portion 6 of the conversion seat 2,
In the long sheet state, the terminal COM and the terminal L are connected, while in the cross sheet state, the terminal COM and the terminal C are connected.

A terminal 1 for a first output contact of the push button PB2 having two output contacts is connected to one of the control power supply lines, and a terminal 2 for the first output contact of the push button PB2 is connected to the control power line. Connected to terminal U of limit switch LS2. The relay R is connected to one of the control power supply lines.
1, the terminal 3 for the second output contact is connected, and the terminal 4 for the second output contact of the relay R1 is connected to the terminal U of the limit switch LS2. Also, the second push button PB2
The terminal 3 for the output contact is connected to one of the control power supply lines, and the terminal 4 for the second output contact is connected to the limit switch LS.
2 terminal S. The above limit switch LS2
Is connected to the terminal COM of the changeover switch SW. Then, a relay R is connected to the terminal 4 of the changeover switch SW.
One end of the switch R2 is connected to the terminal 5 of the switch R, and the terminal 5 for the third output contact of the relay R1 is connected to the terminal 5 of the changeover switch SW. One end of the relay R2 is connected to the third output contact terminal 6 of the relay R1. The other end of the relay R2 is connected to the other end of the control power supply line. Note that the limit switch LS2 is switched in accordance with the switching operation of the backrest 7 of the conversion seat 2, and the terminal S and the terminal COM are connected in the return state, while the terminal U and the terminal COM are connected in the non-return state. .

As shown in FIG. 9, a terminal 7 for the fourth output contact of the relay R1 is connected to one end of the power supply line for the solenoid, and a solenoid S is connected to the terminal 8 for the fourth output contact.
One end of OL1 is connected, and the other end of solenoid SOL1 is connected to the other side of the solenoid power supply line. Also, the output contact terminal 1 of the relay R2 is connected to one of the solenoid power supply lines, the output contact terminal 2 of the relay R2 is connected to one end of the solenoid SOL2, and the other end of the solenoid SOL2 is connected to the solenoid SOL2. Connected to the other end of the power supply line. Further, a solenoid SOL3 is connected in parallel to the solenoid SOL2.

In the control circuit shown in FIG. 8, a circuit breaker provided on the control power supply line and the power supply for the solenoid, and a general command for setting all the converted seats to, for example, a long seat state based on a command signal from the driver's cab. Circuits are omitted.

The operation of the control circuit shown in FIGS. 8 and 9 will be described below.

First, when the backrest 7 is tilted toward the side surface 10 of the vehicle and the return seat 2 is returned to the long seat state, the changeover switch SW is switched to the switching position “L → C” to connect the terminal 1 to the terminal 1. The terminal 3 is connected and the terminals 4 and 6 are connected. Then, when the above push button PB1 is pressed,
One of the control power lines is connected to the relay R1 via the contact of the push button PB1, the limit switch LS1 and the changeover switch SW, and the relay R1 is turned on. Relay R above
When 1 is turned on, the first output contact of the relay R1 (terminal 1,
2) Since one of the control power supply lines is connected to the relay R1 via the limit switch LS1 and the changeover switch SW, the relay R1 is kept on even if the pressing of the push button PB1 is stopped. Further, one end of a power line for the solenoid is connected to one end of the solenoid SOL1 via the fourth output contact (terminals 7, 8) of the relay R1, so that the solenoid SOL1 is excited. When the solenoid SOL1 is excited, the lock pin 26 fixing the seat 6 of the conversion seat 2 to the support base 3 is released from the concave portion 25 of the seat 6, and the seat 6 becomes rotatable. And the seating part 6
When you manually rotate to the cross sheet state,
Since the limit switch LS1 is inverted during the rotation of the conversion seat 2, the terminal COM and the terminal C of the limit switch LS1 are connected, so that the relay R1 is not excited. When the solenoid SOL1 is no longer excited,
The lock pin 26 is protruded by a spring force, the lock pin 26 is fitted into the concave portion 25 (shown in FIG. 2) of the seating portion 6, the seating portion 6 is fixed to the support table 3, and the conversion seat 2 is State. At this time, the solenoid SOL2 is not excited, and the backrest 7 remains in the return state.

On the other hand, when the conversion seat 2 is in the cross-seat state and the backrest 7 is in the return state, the switch SW
Is switched to the switching position “C → L” to connect the terminals 2 and 3 and the terminals 5 and 6. Thereafter, when the push button PB1 is pressed, one of the control power supply lines is connected via the contact of the push button PB1, the limit switch LS1 and the changeover switch SW, and the relay R1 is turned on. When the relay R1 is turned on, one of the control power lines is connected to the relay R1 via the first output contact (terminals 1 and 2) of the relay R1, the limit switch LS1, and the changeover switch SW.
Since it is connected to 1, the relay R1 is kept on even if the pressing of the push button PB1 is stopped. Then, one of the solenoid power supply lines is connected to one end of the solenoid SOL1 via the fourth output contact (terminals 7, 8) of the relay R1, and the solenoid SOL1 is excited. When the solenoid SOL1 is excited, the seat 6
The lock pin 26, which has been fixed to the support base 3, comes off the concave portion 25 of the seating section 6, and the seating section 6 becomes rotatable. The returning torque of the door closer 11 automatically places the seating section 6 in the long seat state. Rotate to become. Then, the limit switch LS1 is inverted during the rotation of the conversion seat 2, and the terminal COM and the terminal L are connected, so that the relay R1 is not excited and the fourth output contact (terminal 7,
8) turns off. Then, the solenoid SOL1 is not excited, and the lock pin 26 is protruded by the spring force and fitted into the concave portion 25 (shown in FIG. 2) of the seating portion 6, and the seating portion 6 is fixed to the support base 3, and The stool 2 is in a long seat state. At this time, the solenoid SOL2 is not excited, and the backrest 7 remains in the return state.

When the backrest 7 is changed from the cross-seat state to the long-seat state when the backrest 7 is in the non-return state, the limit switch LS2 is in the non-return-side terminal U side switching position. Press PB1,
When the relay R1 is turned on, the second output contact (terminals 3 and 4) is turned on, and the control power supply line is connected via the second output contact (terminals 3 and 4) of the relay R1, the limit switch LS2 and the changeover switch SW. One is connected to the relay R2 and the relay R2
Turns on. When the relay R2 is turned on, the output contact of the relay R2 is turned on, one of the solenoid power lines is connected to one end of the solenoid SOL2, SOL3, and the solenoids SOL2, SOL3 are excited. The above solenoid SO
When L2 is excited, the lock pin 4 of the solenoid SOL2 is activated.
9 is pulled out and comes out of the circular hole 48 of the lever 31, so that the backrest 7 can be freely tilted. The backrest 7 is automatically returned to the return side by the return torque of the door closer 30, and the limit switch LS2 is inverted during the conversion of the backrest 7,
Since the terminal is switched from the terminal U to the terminal S of the limit switch LS2, the relay R2 is not excited, and the output contact of the relay R2 is turned off. And the solenoid SOL3
The lock pin 49 is projected by the spring force and fitted into the circular hole 48 of the lever 31, and the backrest 7 is kept in the return state.

Next, a case in which the backrest 7 is changed while the conversion seat 2 remains in the cross seat state will be described below. When the changeover switch SW is set to the change position “L →
C ".

First, when the push button PB2 is pressed while the backrest 7 is in the return state, the second output contact (terminal 3, 4) of the push button PB2 is turned on, and the second output contact of the push button PB2, One of the control power lines is connected to the relay R2 via the limit switch LS2 and the changeover switch SW, and the relay R2 is turned on. When the relay R2 is turned on, one of the solenoid power lines is connected to the solenoids SOL2 and SOL.
3, and the solenoids SOL2 and SOL3 are excited. When the solenoids SOL2 and SOL3 are excited, the lock pin 49 is retracted and the circular hole 4 of the lever 31 is pulled out.
8 and the backrest 7 can be tilted freely. Then, the backrest 7 is manually changed to the non-return state on the opposite side. During the change, the limit switch LS2 is switched to the non-return position, and the relay R2 is not excited. Relay R2 above
Is not excited, the solenoids SOL2 and SOL3 are not excited, and the lock pin 4 of the solenoid SOL2 is released.
9 protrudes by the spring force and fits into the circular hole 48 of the lever 31, and the backrest 7 is kept in the non-return state.

Next, when the push button PB2 is pressed while the backrest 7 is in the non-return state, the second output contact (terminal 3, 4) of the push button PB2 is turned on, and the second output contact of the push button PB2 is turned on. One of the control power supply lines is connected to a relay R2 via a contact, a limit switch LS2 and a changeover switch SW,
The relay R2 turns on. When the relay R2 is turned on, one of the solenoid power lines is connected to one end of the solenoid SOL2, and the solenoids SOL2 and SOL3 are excited. When the solenoid SOL3 is excited, the lock pin 50 of the solenoid SOL3 is disengaged from the circular hole 48 of the lever 31 and the backrest 7 can be tilted. Then, the backrest 7 is manually changed to the return state on the opposite side. During the change, the limit switch LS2 is switched to the return position where the terminal S and the terminal COM are connected, and the relay R2 is not excited. When the relay R2 is not excited, the solenoids SOL2 and SOL3 are not excited,
The lock pin 50 of the solenoid SOL3 protrudes due to the spring force and fits into the circular hole 48 of the lever 31, so that the backrest 7 is kept in the return state.

As described above, the plurality of seats 4, 6 are arranged in a cross-seat state in which the seats 4, 6 are seated facing the front or rear in the traveling direction at intervals in the longitudinal direction of the vehicle.
While rotating the first shaft 21 to the first
After moving away from the side surface 10 of the vehicle along the guide groove 17, the seats 4, 6 are rotated about the first shaft 21, and the second shaft 22 is moved along the second guide groove 18. hand,
The seats 4 and 6 are set in the long seat state. On the other hand, from the first long seat state in which the side 10 of the vehicle sits on the back,
After rotating the seats 4, 6 about the first shaft 21, the first shaft 2 is rotated while rotating the seats 4, 6 about the second shaft 22.
1 is moved along the first guide groove 17 so as to approach the side surface 10 of the vehicle, and the seating portions 4 and 6 are brought into a cross seat state. In this manner, the seating portions 4, 6 in the cross seat state
Even if one side of the vehicle is arranged so as to be in contact with the side 10 of the vehicle, the first shaft 21 is separated from the side 10 of the vehicle along the first guide groove 17, so that the side 10 of the vehicle is in the long seat state. And the backrests 5, 7 of the seats 4, 6
Secure space for the backrest 5,7. In the cross-seat state, while providing a relaxed seat, switching from the cross-seat state to the long-seat state and widening the aisle to carry as many passengers as possible, Time can be reduced. Therefore, there is no need for a power supply for driving,
With a simple structure, a low-cost vehicle conversion seat that can be used as a long seat and a cross seat can be realized.

When changing from the cross seat state to the long seat state, the seat closers 4, 6 can be rotated by the door closer 11, and the seats 4, 6 can be automatically returned. In the cross seat state and the long seat state, the seats 4, 6 are fixed to the support base 3 by the solenoid SOL1.
Even if the passenger leans on the vehicle due to deceleration and an external force acts on the seating portions 4, 6, the seating portions 4, 6 are prevented from being converted, thereby ensuring the safety of the passengers.

Further, since the seat closers 4, 6 are slowly rotated and returned by the door closer 11 which is the return device with the hydraulic damper, the seats 4, 6 can be returned quietly with less impact, and the conversion can be performed. Even when a passenger is sometimes nearby, the seating portions 4, 6 can be safely returned.

Further, the backrests 5, 7 supported by the support members 35, 35 so as to be tiltable by the door closer 30 as the return device with the hydraulic damper are used to slide the bearings 34, 35 together with the support members 35, 35 in the tilting direction.
34, so that the backrest 5, 5,
7 can be changed slowly without lifting. Therefore, since there is no structure for lifting the backrests 5, 7, the backrests 5, 7 can be easily changed by the door closer 30. In addition, the solenoid SOL
2. The backrests 5, 7 are fixed to the seating portions 4, 6 by SOL3, respectively. Therefore, even if an external force acts on the backrests 5, 7 due to the passenger leaning due to the shaking, acceleration and deceleration of the vehicle, the backrests 5, 7 This prevents passengers from changing and ensuring passenger safety.

In the above embodiment, the vehicle convertible stool of the present invention is applied to a railway vehicle. However, the present invention is not limited to a railway vehicle and may be applied to other vehicles such as automobiles.

In the above embodiment, the conversion seat 1,
Although the door closer 11 is used as the seating portion returning means for returning the second seating portions 4 and 6, the seating portion may be manually rotated without the seating portion returning means.

In the above embodiment, the convertible seats 1 and 2 are automatically returned from the cross sheet state to the long sheet state, but may be automatically returned from the long sheet state to the cross sheet state. .

In the above embodiment, the conversion stool 1,
Door closer 1 which is a return device with a hydraulic damper as seating portion returning means for rotating and returning the seating portions 4 and 6 of the vehicle 2
However, the seat return means is not limited to the return device with a hydraulic damper, but may be a return device using a spring. In addition, although the door closer 30 is used as the return device with the hydraulic damper for converting the backrests 5 and 7 to return, the return device with the hydraulic damper is not limited thereto, and a return device using a spring or the like may be used.

Further, in the above embodiment, three long conversion seats 1 for two persons and one conversion seat 2 for one person are combined to form a seven-seat long seat. Of course not.

Further, in the above embodiment, the solenoid SOL1 as the seat fixing means and the solenoids SOL2 and SOL3 as the backrest fixing means are controlled using the control power supply and the solenoid power supply. The fixing means may not require a mechanical power supply.

Furthermore, in the above embodiment, the backrests 5, 7 of the conversion stools 1, 2 are changed, but the present invention is applied to a conversion stool in which only the backrest is fixed to the seating portion and only the seating portion rotates. You may.

[0052]

As is apparent from the above description, the vehicle convertible stool according to the first aspect of the present invention is supported by a support fixed to the floor of the vehicle and slidably supported by the support in the horizontal direction. A seating portion, a backrest attached to the seating portion, and fixed to the bottom surface side of the seating portion at a predetermined interval, and guided by a first guide groove and a second guide groove formed on the support base, respectively. In the first seat state in which the seating portion is seated facing forward or rearward in the traveling direction of the vehicle, the seating portion includes a first shaft and a second shaft. After moving one axis along the first guide groove away from the side of the vehicle, the seat is rotated about the first axis, and the second axis is moved along the second guide groove to seat. The seat is in a second seating state, with the side of the vehicle on its back, while the seating section is on the side of the vehicle, on its back. In the seated second seat state, the seat is rotated about the first axis, the second axis is moved along the second guide groove, and then the seat is rotated about the second axis. The first shaft is moved along the first guide groove so as to approach the side surface of the vehicle so that the seating portion is in a first seat state in which the seating portion faces forward or backward in the traveling direction of the vehicle.

Therefore, according to the vehicle convertible stool according to the first aspect of the present invention, for example, in a railway vehicle, a plurality of seating portions are seated facing the front or rear in the traveling direction at intervals in the longitudinal direction of the vehicle. The first seat state is arranged in a so-called cross seat state, and the first shaft is moved away from the side surface of the vehicle along the first guide groove while rotating the seat portion about the second shaft, and then the first seat state is set. A second seat state in which the seat is rotated about the shaft, the second shaft is moved along the second guide groove, and the seat is seated with the side of the vehicle as a back,
A so-called long seat state in which the side surfaces of adjacent seating portions are in contact with each other. Therefore, even if one side surface of the seating portion is disposed so as to be in contact with the side surface of the vehicle in the cross seat state, the first shaft is separated from the side surface of the vehicle along the first guide groove. Separate the side of the vehicle from the backrest side of the seat to secure the space for the backrest. Thus, in the above-mentioned cross seat state, while a relaxed seat is provided, in the long seat state, the passage is widened so that as many passengers as possible can be loaded, and the time during stopping can be reduced by smooth getting on and off. Therefore, it is possible to realize a low-cost vehicle convertible stool that does not require a driving power source and has both a simple structure and a long seat and a cross seat.

According to a second aspect of the present invention, there is provided a vehicle convertible seat according to the first aspect of the present invention, wherein the first seat state which faces forward or backward in the traveling direction of the vehicle and the state of the vehicle. In the first seat state and the second seat state, the seat portion is rotated from one of the second seat states to the other side and returned to the other by the seat section returning means. The seat is fixed to the support base so that the seat is not rotated by the unit fixing means.

Therefore, according to the vehicle conversion seat according to the second aspect of the invention, the vehicle is converted from the first seat state to the second seat state or from the second seat state to the first seat state. At this time, the seating portion can be automatically returned by rotating the seating portion by the seating portion returning means. In the first seat state and the second seat state, the seat is fixed to the support table by the seat fixing means, so that the passenger leans on the vehicle due to the swaying, acceleration, and deceleration of the vehicle, and an external force is applied to the seat. Works,
The seat can be prevented from being changed, ensuring passenger safety.

According to a third aspect of the present invention, in the second aspect of the present invention, the seat return means is a return device with a hydraulic damper. Since the seat portion is rotated slowly to be returned, the seat portion can be returned quietly with little impact, and the seat portion can be safely returned even when a person is near when switching.

According to a fourth aspect of the present invention, there is provided a vehicle conversion stool according to any one of the first to third aspects, wherein two lower fulcrums on an extension line extending along both sides of the backrest are pivoted. The backrest is tiltably supported at a center by a support member within a predetermined angle range, and the support member is moved in a substantially horizontal direction along both side surfaces of the seating portion by slide means attached to both sides of the seating portion. At the same time, by the return device with the hydraulic damper, the backrest is tilted from either one to the other, and the support member is slid by the sliding means in the direction in which the backrest tilts, so that the backrest is returned. You can switch slowly without lifting. Accordingly, since there is no structure for lifting the backrest, the backrest can be easily returned by the return device with the hydraulic damper. Further, in the resting state in which the backrest is restored by the restoring device with the hydraulic damper and in the non-restoring state before the backrest is restored, the backrest is fixed to the seat portion so as not to move by the backrest fixing means. When the passenger leans on the transfer seat due to acceleration, deceleration, or deceleration, the backrest does not turn even if an external force acts on the backrest, thereby ensuring passenger safety.

[Brief description of the drawings]

FIG. 1 (a) is a plan view of a vehicle convertible stool according to an embodiment of the present invention in a cross seat state, and FIG. 1 (b) is a front view of the convertible stool. FIG. 1 (c) is a side view of the conversion seat.

FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1 (a).

FIG. 3 is a schematic plan view of the conversion seat.

4 (a) to 4 (c) are schematic diagrams showing changes when the above-mentioned conversion seat is changed from a cross-seat state to a long-seat state.

5 (a) to 5 (c) are schematic diagrams for explaining the movement of the door closer and the lever of the above-mentioned convertible seat at the time of FIGS. 3 (a) to 3 (c).

FIG. 6 is a view showing a conversion mechanism of the backrest of the conversion stool.

FIG. 7 is a side view of the conversion seat when the backrest is in a return state.

FIG. 8 is a circuit diagram showing a control circuit of the conversion seat.

FIG. 9 is a circuit diagram showing a control circuit of the solenoid for the convertible stool.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conversion stool for 2 persons, 2 ... Conversion stool for 1 person, 3 ... Support stand, 4,6 ... Seat part, 5,7 ... Backrest, 11,30 ...
Door closer, 12,31 ... lever, 13 ... sliding bracket, 1
4 roller, 17 first guide groove, 18 second guide groove, 2
DESCRIPTION OF SYMBOLS 1 ... 1st axis | shaft, 22 ... 2nd axis | shaft, 34 ... slide bearing, 35 ... support member, 36, 46 ... arm, SOL1, S
OL2, SOL3 ... Solenoid.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junji Igarashi 3-9-60 Inada Shinmachi, Higashiosaka City, Osaka Inside Kinki Vehicle Co., Ltd. (72) Inventor Kenshi Shimizu 3-9-9 Inadashinmachi, Higashi Osaka City, Osaka Prefecture No. 60 Kinki Vehicle Co., Ltd.

Claims (4)

[Claims] 1. A support fixed to a floor of a vehicle, a seat slidably supported by the support in the horizontal direction, a backrest attached to the seat, and a bottom surface of the seat. A first shaft and a second shaft which are fixed to the side at predetermined intervals and are respectively guided by a first guide groove and a second guide groove formed in the support base; In the first seat state, which faces forward or rearward in the traveling direction of the vehicle, the side of the vehicle along the first guide groove along the first shaft while rotating the seat around the second shaft. After moving further away, the seat is rotated about the first shaft, the second shaft is moved along the second guide groove, and the seat is moved against the side of the vehicle. While the second seat is in a seated state, while the seating portion is on the side of the vehicle. In the seated second seat state, the seat is rotated about the first shaft to move the second shaft along the second guide groove, and then the seat is moved to the second shaft. The first shaft is moved so as to approach the side surface of the vehicle along the first guide groove while rotating about the center, and the seating portion is seated facing forward or rearward in the traveling direction of the vehicle. A convertible stool for vehicles, characterized by being in a seat state. 2. The convertible stool for a vehicle according to claim 1, wherein the first sitting stool faces forward or backward in the traveling direction of the vehicle.
A seat return means for rotating the seat to return from one of the seat state and the second seat state sitting with the side of the vehicle to the back; and the first seat state and the second seat state. And a seat fixing means for fixing the seat to the support base so that the seat is not rotated in the seat state. 3. The vehicle convertible stool according to claim 2, wherein the seating portion returning means is a return device with a hydraulic damper. 4. The vehicle convertible seat according to claim 1, wherein the backrest has a predetermined angular range around two lower fulcrums on an extension line extending along both sides of the backrest. A support member that is tiltably supported within, a slide means that is attached to both sides of the seating portion and moves the support member in a substantially horizontal direction along both side surfaces of the seating portion, and the backrest from one of the two. The support member is slid by the sliding means in the direction in which the backrest is tilted while being tilted to the other side, and the backrest is returned by the hydraulic damper-backed return device for returning the backrest to the backrest. In a return state and a non-return state before returning the backrest, a backrest fixing hand for fixing the backrest to the seat portion so as not to move. Vehicle convertible seat characterized by comprising and.