JP3447475B2 - Vehicle convertible stool - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As a stool of a railroad car, a stool is arranged in the longitudinal direction of the car, and a long seat that sits behind the window side of the car and a stool in the sleeper direction of the track are arranged. Alternatively, there are two types of cross seats that face in the direction opposite to the traveling direction. Since the long seats can increase the number of standing seats, long seats are used for commuting vehicles. On the other hand, the cross seats are generally favored by passengers because the scenery along the line can be easily seen and the passengers can sit comfortably, and the cross seats are adopted for many vehicles running in the suburbs.

By the way, most of the railroad cars are operated for a long time from early morning to late night, and the inside of the car is crowded during the morning and evening rush hours. However, since the inside of the car is vacant during the off hours in the daytime, as many passengers as possible during the rush hour. On the other hand, there is a desire to provide a seat that is as relaxed as possible during quiet times and during sightseeing spots, etc.

Therefore, conventionally, in the same vehicle,
There is a fully automatic conversion stool that can be used as both a long seat and a cross seat by rotating and moving the stool with multiple drive motors as necessary to convert the backrest.

[0005]

However, the above fully automatic conversion stool requires a power source for driving, and
It has a drawback that the structure is complicated and the cost is high.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a low-cost vehicle conversion stool that does not require a driving power source and has a simple structure that can serve both as a long seat and a cross seat.

[0007]

A solution for the order to achieve the above object, the vehicle turning seating according to claim 1, a support fixed to the floor of the vehicle and, swingably supported by a horizontal surface to the support base Seated portion, the backrest attached to the seating portion, and fixed to the bottom surface side of the seating portion at a predetermined interval.
And a first shaft, a second shaft, and the first base formed on the support base.
The first guide groove in the shape of an arc that guides the shaft of the
A first seat state in which the seating portion is seated facing the front or the rear in the traveling direction of the vehicle, the second seat having a circular arc-shaped second guide groove for guiding the second shaft. In, while rotating the seating portion around the second shaft, the first shaft is moved along the first guide groove away from the side surface of the vehicle, and then the first shaft is centered around the first shaft. The seat portion is rotated and the second shaft is moved along the second guide groove to bring the seat portion into a second seat state in which the side surface of the vehicle is seated on the back, while the seat portion is In a second seat state in which the side surface of the vehicle is seated on the back, the seat is rotated about the first shaft to move the second shaft to the second shaft.
After moving along the guide groove, the first shaft is moved along the first guide groove toward the side surface of the vehicle while rotating the seating portion around the second shaft. It is characterized in 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.

According to the vehicle conversion stool of claim 1,
For example, in a railway vehicle, a plurality of seat portions are arranged in a first seat state in which a plurality of seat portions are seated facing the front or rear in the traveling direction at intervals in the longitudinal direction of the vehicle, so-called cross seat state, and the seat portions are arranged on the second shaft. After moving the first shaft along the first guide groove away from the side surface of the vehicle while rotating about the center, the seating portion is rotated about the first shaft, and the second shaft is rotated to the second shaft.
The seat is moved along the guide groove to the second seat state in which the seat is seated with the side surface of the vehicle as the back, and the side surfaces of the adjacent seats are in contact with each other, that is, a long seat state.
On the other hand, from a long seat state in which the side surface of the vehicle is seated on the back, the seat portion is rotated about the first shaft to move the second shaft along the second guide groove, and then the seat portion is moved to the second seat groove. While rotating around the shaft, the first shaft is moved along the first guide groove so as to approach the side surface of the vehicle, and the seating portion is placed in a cross seat state facing forward or backward in the traveling direction.
As described above, even when the one side surface of the seating portion is arranged to contact the side surface of the vehicle in the cross seat state, the first shaft is in the long seat state while being separated from the side surface of the vehicle along the first guide groove. By switching, the side surface of the vehicle and the backrest side of the seat are separated from each other in the long seat state, and a space for the backrest is secured. In addition, in the cross-seat state, while providing a relaxed stool, by switching from the cross-seat state to the long-seat state and widening the aisle, as many passengers as possible can be loaded, and a smooth boarding / alighting process can be used to stop the vehicle. Time can be shortened. Therefore, it is possible to realize a low-cost vehicle conversion stool that can be used both as a long seat and a cross seat with a simple structure without requiring a driving power source.

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

According to the vehicle conversion stool of claim 2,
From the first seat state to the second seat state or the second
When the seat state is changed to one of the first seat states, the seat portion can be automatically returned by rotating the seat portion by the seat portion returning means. In addition, in the first seat state and the second seat state, since the seating portion is fixed to the support base by the seating portion fixing means, the passenger leans against the conversion seat due to the shaking, acceleration, and deceleration of the vehicle, and the seating Even if an external force is applied to the seat, the seating part does not change, ensuring the safety of passengers.

According to a third aspect of the present invention, there is provided the vehicle conversion stool according to the second aspect, wherein the seat portion returning means is a hydraulic damper-equipped return device.

According to the vehicle conversion stool of claim 3,
With the return device with a hydraulic damper, the seat is slowly rotated to return, so there is little impact and the seat can be returned quietly, and the seat can be safely returned even when a person is near at the time of conversion. be able to.

A vehicle conversion stool according to claim 4 is the vehicle conversion stool according to any one of claims 1 to 3.
A support member that tiltably supports the backrest within a predetermined angle range around two lower fulcrums on an extension line along both sides of the backrest, and the support members attached to both sides of the seating portion. Sliding means for moving in a substantially horizontal direction along both side surfaces of the seat portion, and tilting the backrest from one to the other, and sliding the support member by the sliding means in a direction in which the backrest tilts. , A return device with a hydraulic damper for returning the backrest, a return state in which the backrest is returned by the return device with the hydraulic damper, and a non-return state before returning the backrest, the seat so as not to move the backrest. And a backrest fixing means for fixing to the section.

According to the vehicle conversion stool of claim 4,
Since the backrest tiltably supported by the support member is slid substantially in parallel with the support member by the slide means in the tilting direction by the return device with the hydraulic damper, the backrest can be slowly converted without being lifted. Therefore, since there is no structure for lifting the backrest, the backrest can be easily returned by the return device with the hydraulic damper. Further, since the backrest is fixed to the seat by the above-mentioned backrest fixing means, the backrest does not change even if the passenger leans against this conversion stool due to the shaking, acceleration or deceleration of the vehicle and external force acts on the backrest. , Ensuring the safety of passengers.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a vehicle conversion stool of the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 1 (a) is a long seat state when a vehicle conversion stool according to an embodiment of the present invention is used in a railway vehicle.
FIG. 1 is a plan view showing (arrangement of a conversion stool so that the side of the vehicle is seated on the back), and FIG. 1 (b) is a front view of the conversion stool,
FIG. 1 (c) is a side view of the conversion seat.

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

FIG. 2 shows the above-mentioned 1 viewed from the line II-II in FIG. 1 (a).
It is the schematic of the cross section of the conversion stool 2 for people. In the case of the conversion stool 1 for two people, the width of the seat and the backrest is approximately doubled, and the other configurations are the same. In FIG. 2, the first and second guide grooves 17 and 18 and the first and second shafts 2
The positions of 1, 22 are shown in FIG.
The position is different from that shown in FIG.

As shown in FIG. 2, a box-shaped support base 3 fixed to the floor 20 of the vehicle horizontally slides the seat 6 through a plurality of rollers 23 (only two of which are shown in FIG. 2). Supports freely. In addition, the first and second guide grooves 17 and 18 are formed on the upper side of the support base 3, and the first and second shafts 21 and 22 fixed to the bottom surface of the seating portion 6 with a predetermined gap are provided. The tip ends of the first and second shafts 21 and 22 are fixed to the sliding 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 the lever 12 is slidably attached to the sliding 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 a seating portion returning means fixed to the support base 3. There is. Further, a solenoid SOL1 as a seating portion fixing means having a lock pin 26 is attached to the upper side of the support base 3, and the lock pin 26 is fitted into a recess 25 provided below the seating portion 6. It should be noted that two recesses 25 are provided on the bottom surface side of the seat 6 so that the lock pin 26 can be fitted when the seat 6 is in the cross seat state and in the long seat state. When the solenoid SOL1 is de-excited, the lock pin 26 is projected by the built-in spring force,
When the solenoid SOL1 is excited, the lock pin 26 is pulled in and disengaged from the recess 25.

FIG. 3 shows a cross-seat state in which the conversion seat 2 is directed forward or backward in the longitudinal direction of the vehicle, and its axis is aligned with a point O ₁ at the substantially center of the bottom surface of the seat portion 6. The first shaft 21 is arranged. And the above point O
The distance from ₁ is R, includes point O ₁ and is side 1 of the vehicle
The second shaft 22 is arranged so that the axes coincide with a point P ₁ that is σ / 2 apart from the vertical plane parallel to 0 toward the passageway at the center of the vehicle. In addition, the first guide groove 17 of the support base 3 has a point P1.
Is in the shape of an arc having a radius R, and the first axis 21 is moved from the point O ₁ to a point O ₂ where the amount of movement in the direction orthogonal to the longitudinal direction of the vehicle and in the direction opposite to the side face 10 is σ. invite.
On the other hand, the second guide groove 18 of the support base 3, around the point O ₂ has an arcuate radius R, from the point P _1, including the point O ₁ and perpendicular vertical plane to the side surface 10 of the vehicle From the point P ₁ side
Guide the second shaft 22 to a point P ₂ which is / 2 apart.

4 (a) to 4 (c) and 5 (a) to 5 (c), the seat portion 6 of the conversion seat 2 is rotated to change from the cross seat state (non-restored state) to the long seat state ( It shows the change when it goes to the return state. The seating portion 4 (shown by the chain double-dashed line) of the conversion stool 1 for two persons changes similarly. Also, FIG. 4 (a)
In (c), the first and second shafts 21 and 22 and the first and second guide grooves 1 are shown.
Reference numerals 7 and 18 are shown by solid lines in order to make the drawing easier to see.

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

Further, when the lever 12 is rotated counterclockwise by the door closer 11 from the state of FIG. 4 (b), the lever 1
The tip of 2 slides along the sliding metal fitting 13 via the roller 14, while rotating the sliding metal fitting 13 counterclockwise about the first shaft 21. Then, the seating portion 6 rotates counterclockwise about the first shaft 21 existing at the point O ₂ ,
(c), as shown in FIG. 5 (c), the second shaft 22 has the second guide groove 1
Guided by 8 and move to the position of P ₂ .

FIG. 6 is a view for explaining the conversion operation of the backrest of the conversion stool 2.

As shown in FIG. 6, the seating portion 6 supported by the support base 3 by the plurality of rollers 23 and the first and second shafts 21 and 22 so as to be convertible has a side surface of the seating portion 6 (in the figure). A fixing plate 33 is attached to the right side) with a predetermined gap, and a lever 31 described later is movable between the fixing plate 33 and the side surface of the seating portion 6 (see FIG. 7). The fixed plate 33
While the slide bearing 34 as the slide means is attached to the, the slide bearing 34 as the slide means is attached to the other side surface of the seat portion 6. A support member 35 having a substantially isosceles triangular shape with the apex facing downward is provided on the slide portions of the slide bearings 34, 34.
35 are fixed, and the supporting members 35, 35 are slidable in the horizontal direction along the side surface of the seat 6 by the slide bearings 34, 34 (see FIG. 7). Cylindrical stoppers 38, 38 near both ends of the slide bearing 34 of the fixed plate 33 on the right side in the figure (only one is shown in FIG. 6)
Are fixed to each other 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, and the arms 36, 46 are provided.
The front end side of 46 is rotatably attached to the vicinity of the lower ends of the support members 35, 35 via a pin 37 (see FIG. 7). Arms 36, are provided at both upper ends of the support members 35, 35.
Stoppers 35a, 35a (shown in FIG. 7) for restricting the tilting of 46 within a predetermined angle range are provided, respectively. In addition, a long hole 31a (shown in FIG. 7) is formed at one end of the lever 31,
An 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 the circular hole 48 side from the center of the lever 31 is attached to the bottom surface of the seat portion 6 as a return device with a hydraulic damper 30 as a return device.
It is attached to the pinion shaft 39 of. Further, a solenoid SOL2 serving as a backrest fixing means is provided on the tip side of a mounting bracket 47 having an L-shaped cross section which is fixed to the bottom surface side of the seat portion 6.
SOL3 (only 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 projects due to the 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 pulled in, and the lock pin 49 is disengaged from the circular hole 48 of the lever 31.

FIG. 7 shows a side view of the conversion seat 2 when the backrest 7 is in the return state A. The backrest 7 tilts to the left in the figure, and the arm 36 contacts one stopper portion 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 into the circular hole 48 of the lever 31 to lock the lever 31 so that it does not move. From the return state A shown in FIG. 7, the backrest 7 is manually pushed with a force stronger than the spring force of the door closer 30, and the lever 31 is moved to the pinion shaft 3.
When the pin 32 is rotated in the direction of arrow D1 about 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 long 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 B state. Further, when the backrest 7 is manually pushed with a force that overcomes 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 moves horizontally along the side surface of the seat 6 by the slide bearing 34. Then, the backrest 7 moves in the direction of arrow D3. Then, the supporting member 35 comes into contact with the other stopper 38 to stop, and the backrest 7
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, and the lever 31 is locked so as not to move, and the backrest 7 is returned from the return state A to the non-return state C. The conversion is over.

On the other hand, when the solenoid SOL2 is excited from the non-restored state C shown in FIG. 7 and the lock pin 49 is pulled in and removed from the circular hole 48 of the lever 31, the return torque of the door closer 30 causes the lever 31 to move the lever 31. Rotate counterclockwise around the center of the backrest 7
While being guided by the first long hole 31a, the arm 37 tilts counterclockwise about the pin 37 as a fulcrum, and the arm 36 contacts the stopper portion 35a of the support member 35. Furthermore, the above-mentioned door closer 3
When the lever 31 is rotated counterclockwise by the 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 drawing.
Then, the supporting member 35 comes into contact with the stopper 38 and stops, and the backrest 7 enters 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. Then, the conversion of the backrest 7 from the non-restored state C to the restored state A is completed.

8 and 9 show a control circuit of the conversion stool 2 described above, and the conversion stool 1 for two persons also has a similar control circuit, although not shown. By the control circuit,
Even if external force acts on the conversion stool 2 such as when the vehicle is shaken, accelerated, or decelerated while the vehicle is in operation, such as when the passenger leans back, the conversion stools 1, 2 rotate or the backrest 5,7. It prevents passengers from turning and secures passengers' safety.

As shown in FIG. 8, the terminal 1 for the output contact of the 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 terminal 2 for the output contact of the push button PB1. Further, 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,
The switching position “L → C” in which the terminals 1 and 3 are connected and the terminals 4 and 6 are connected, and the terminals 2 and 3 are connected,
Switch to either 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 of the control power supply lines. 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. The limit switch LS1 is
It changes with the rotational movement of the seating portion 6 of the conversion stool 2,
In the long sheet state, the terminals COM and L are connected, while in the cross sheet state, the terminals COM and C are connected.

Further, the terminal 1 for the first output contact of the push button PB2 having two output contacts is connected to one of the control power supply lines, and the terminal 2 for the first output contact of the push button PB2 is connected. It is connected to the terminal U of the limit switch LS2. The relay R is provided on one side of the control power line.
The terminal 3 for the second output contact of 1 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. In addition, the second push button PB2
Connect the output contact terminal 3 to one side of the control power supply line, and connect the second output contact terminal 4 to the limit switch LS.
It is connected to the terminal S of 2. Above limit switch LS2
The terminal 6 of the changeover switch SW is connected to the terminal COM. The relay R is connected to the terminal 4 of the changeover switch SW.
One end of the relay switch 2 is connected, and the terminal 5 of the changeover switch SW is connected to the terminal 5 for the third output contact of the relay R1. One end of the relay R2 is connected to the terminal 6 for the third output contact of the relay R1. The other end of the relay R2 is connected to the other control power line. The limit switch LS2 is switched in accordance with the conversion operation of the backrest 7 of the conversion stool 2 and the terminal S and the terminal COM are connected in the return state, while the terminals U and the terminals COM are connected in the non-return state. .

Further, as shown in FIG. 9, the terminal 7 for the fourth output contact of the relay R1 is connected to one end of the power source line for the solenoid, and the 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 of the solenoid power source lines. Further, the terminal 1 for the output contact of the relay R2 is connected to one of the power source lines for the solenoid, one end of the solenoid SOL2 is connected to the terminal 2 for the output contact of the relay R2, and the other end of the solenoid SOL2 is for the solenoid. It is connected to the other side 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, the circuit breaker provided in the control power supply line and the power supply for the solenoid, and the general command to set all the conversion seats to the long seat state, for example, based on the command signal from the driver's cab. The circuit and 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 to restore the long-seat state, the changeover stool 2 is changed over to the changeover position "L → C" to change the terminal 1 to the terminal 1. The terminal 3 is connected and the terminals 4 and 6 are connected. After that, when the push button PB1 is pressed,
One of the control power supply 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 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 ON state of the relay R1 is maintained even if the push button PB1 is stopped. Further, one end of the solenoid power supply line is connected to one end of the solenoid SOL1 via the fourth output contact (terminals 7 and 8) of the relay R1 to excite the solenoid SOL1. When the solenoid SOL1 is excited, the lock pin 26 that fixes the seating portion 6 of the conversion seat 2 to the support base 3 is disengaged from the recess 25 of the seating portion 6, and the seating portion 6 becomes rotatable. And the seating portion 6
If you manually rotate so that it becomes a cross seat state,
Since the limit switch LS1 is inverted during the rotation of the conversion stool 2 and the terminal COM and the terminal C of the limit switch LS1 are connected, the relay R1 is not excited. When the solenoid SOL1 is no longer excited,
The lock pin 26 is projected by the spring force, the lock pin 26 is fitted into the recessed portion 25 (shown in FIG. 2) of the seat portion 6, the seat portion 6 is fixed to the support base 3, and the conversion seat 2 becomes a cross seat. It becomes a state. At this time, the solenoid SOL2 is not excited, and the backrest 7 remains in the restored state.

On the other hand, when the conversion seat 2 is in the cross seat state and the backrest 7 is in the restored state, the changeover switch SW is set.
Is switched to the switching position “C → L” to connect the terminals 2 and 3 and the terminals 5 and 6. Then, when the push button PB1 is pushed, 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 supply 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 ON state of the relay R1 is maintained even if 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 and 8) of the relay R1 to excite the solenoid SOL1. When the solenoid SOL1 is excited, the seating portion 6 of the conversion seat 2 is
The lock pin 26, which has been fixed to the support base 3, is disengaged from the recessed portion 25 of the seat portion 6, and the seat portion 6 becomes rotatable, and the return torque of the door closer 11 automatically brings the seat portion 6 into the long seat state. Rotate to become. Then, the limit switch LS1 is reversed during the rotation of the conversion stool 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 no longer excited, the lock pin 26 is projected by the spring force, and is fitted into the recess 25 (shown in FIG. 2) of the seat portion 6, the seat portion 6 is fixed to the support base 3, and the conversion is performed. 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 returned state.

When the conversion seat 2 is changed from the cross-seat state to the long-seat state and the backrest 7 is in the non-restoring state, the limit switch LS2 is in the switching position on the non-restoring terminal U side, so that the push button Press PB1,
When the relay R1 is turned on, the second output contact (terminals 3 and 4) is turned on, and 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 relay R2 and 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 source lines is connected to one end of the solenoids SOL2 and SOL3, and the solenoids SOL2 and SOL3 are excited. The solenoid SO
When L2 is excited, lock pin 4 of solenoid SOL2
9 is pulled in and disengaged from the circular hole 48 of the lever 31, and the backrest 7 can be tilted. The backrest 7 automatically returns to the return side by the return torque of the door closer 30, and the limit switch LS2 is reversed during the conversion of the backrest 7,
Since the limit switch LS2 is switched from the terminal U side to the terminal S side, the relay R2 is no longer excited and the output contact of the relay R2 is turned off. And the solenoid SOL3
The lock pin 49 of is protruded by the spring force and fitted into the circular hole 48 of the lever 31, so that the backrest 7 is kept in the returning state.

Next, a case where the backrest 7 is converted while the conversion stool 2 is in the cross seat state will be described below. In addition, the changeover switch SW is set to the changeover position "L →
Switch to C ".

First, when the push button PB2 is pressed when the backrest 7 is in the return state, the second output contacts (terminals 3 and 4) of the push button PB2 are turned on, and the second output contacts of the push button PB2, One of the control power supply 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.
It is connected to one end of 3 and the solenoids SOL2 and SOL3 are excited. When the solenoids SOL2 and SOL3 are excited, the lock pin 49 is pulled in and the circular hole 4 of the lever 31
The backrest 7 can be tilted freely from the position 8. Then, the backrest 7 is manually switched to the non-returning state on the opposite side, the limit switch LS2 is switched to the non-returning position during the transition, and the relay R2 is no longer excited. Above relay R2
Is no longer excited, the solenoids SOL2 and SOL3 are no longer excited and the lock pin 4 of the solenoid SOL2
9 is projected by the spring force and fitted into the circular hole 48 of the lever 31, so that the backrest 7 is kept in the non-restored state.

Next, when the push button PB2 is pushed when the backrest 7 is in the non-restored state, the second output contacts (terminals 3 and 4) of the push button PB2 are turned on, and the second output of the push button PB2 is turned on. One of the control power supply lines is connected to the relay R2 via the contact, the limit switch LS2 and the changeover switch SW,
Relay R2 turns on. When the relay R2 is turned on, one of the solenoid power supply 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 switched to the return state on the opposite side, and the limit switch LS2 is switched to the return side switching position where the terminal S and the terminal COM are connected during the conversion, and the relay R2 is not excited. When the relay R2 is no longer excited, the solenoids SOL2 and SOL3 are no longer excited,
The lock pin 50 of the solenoid SOL3 is projected by the spring force and fits into the circular hole 48 of the lever 31, so that the backrest 7 is kept in the returned state.

As described above, the plurality of seating portions 4 and 6 are arranged at intervals in the longitudinal direction of the vehicle in a cross-seat state in which they are seated facing forward or rearward in the traveling direction, and the seating portions 4 and 6 are arranged.
While rotating the first shaft 21 about the second shaft 22
After moving along the guide groove 17 away from the side surface 10 of the vehicle, the seat portions 4, 6 are rotated around the first shaft 21 and the second shaft 22 is moved along the second guide groove 18. hand,
The seats 4 and 6 are in the long seat state. On the other hand, from the long seat state in which the side surface 10 of the vehicle is seated as a back,
After rotating the seats 4 and 6 about the first shaft 21, the seats 4 and 6 are rotated about the second shaft 22 and the first shaft 2 is rotated.
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, 6 are brought into the cross seat state. Thus, in the cross seat state, the seating portions 4, 6 are
Even if one side surface of the vehicle is arranged so as to be in contact with the side surface 10 of the vehicle, the first shaft 21 is separated from the side surface 10 of the vehicle along the first guide groove 17, so that the side surface 10 of the vehicle is in the long seat state. And the backrests 5 and 7 of the seats 4 and 6 are separated,
Secure a space for the backrest 5,7. In addition, in the cross-seat state, while providing a relaxed stool, by switching from the cross-seat state to the long-seat state and widening the aisle, as many passengers as possible can be loaded, and a smooth boarding / alighting process can be used to stop the vehicle. Time can be shortened. Therefore, there is no need for a power supply for driving,
With a simple structure, a low-cost conversion seat for vehicles that can be used for both long and cross seats can be realized.

When the cross seat state is changed to the long seat state, the seat closers 4 and 6 can be automatically returned by rotating the seating portions 4 and 6 by the door closer 11. Further, in the cross seat state and the long seat state, since the seating portions 4 and 6 are fixed to the support base 3 by the solenoid SOL1, the vehicle is swayed and accelerated,
Even if the passenger leans against the deceleration and an external force acts on the seats 4, 6, the seats 4, 6 are prevented from being converted and the safety of the passengers is ensured.

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

Further, the backrests 5 and 7 tiltably supported by the support members 35 and 35 by the door closer 30 which is the return device with the hydraulic damper, together with the support members 35 and 35, slide bearings 34 and 35 in the tilting direction.
Since it slides in parallel with 34, the backrest 5,
You can switch slowly without lifting 7. Therefore, since there is no structure for lifting the backrests 5 and 7, the backrests 5 and 7 can be easily converted by the door closer 30. Also, the solenoid SOL
The backrests 5 and 7 are fixed to the seating portions 4 and 6 by 2, SOL3, respectively, so that even if an external force acts on the backrests 5 and 7, the passengers lean on them due to the shaking, acceleration and deceleration of the vehicle, and the backrests 5 and 7 The safety of passengers is ensured by preventing the change of passengers.

In the above embodiments, the vehicle conversion stool according to the present invention is applied to a railway vehicle, but the present invention may be applied to other vehicles such as automobiles as well as railway vehicles.

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

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

In the above embodiment, the conversion seats 1,
A door closer 1 which is a return device with a hydraulic damper as a seating part returning means for rotating and returning the seating parts 4 and 6 of 2.
However, the seating portion returning means is not limited to the returning device with the hydraulic damper, and may be a returning device using a spring. Further, although the door closer 30 which is a return device with a hydraulic damper for converting and returning the backrests 5 and 7 is used, the return device is not limited to the return device with a hydraulic damper and may be a return device using a spring or the like.

In the above embodiment, the three conversion seats 1 for two persons and the one conversion seat 2 for one person are combined to form a long seat for 7 seats, but it is limited to 7 seats. Of course not.

Further, in the above-mentioned embodiment, the solenoid SOL1 as the seat fixing means and the solenoids SOL2, SOL3 as the backrest fixing means are controlled by using the control power source and the solenoid power source. However, the seating portion fixing means and the backrest are controlled. The fixing means may be one that does not require a mechanical power source.

Furthermore, although the backrests 5 and 7 of the conversion stools 1 and 2 are converted in the above embodiment, the present invention is applied to the conversion stools in which the backrest is fixed to the seat and only the seat is rotated. May be.

[0052]

As apparent from the above, according to the present invention, vehicle convertible seating of the invention of claim 1 includes a support base fixed to the floor of the vehicle, which is supported freely swing in a horizontal plane above the support table A seat, a backrest attached to the seat, and a first shaft and a first shaft fixed to the bottom surface of the seat with a predetermined gap .
It is formed on two shafts and the support base, and guides the first shaft.
Is formed in the arc-shaped first guide groove and the support base,
A second guide groove having an arc shape for guiding the second shaft is provided, and in the first seat state in which the seating part faces forward or rearward in the traveling direction of the vehicle, the seating part is attached to the second shaft. The first shaft is moved along the first guide groove away from the side surface of the vehicle while being rotated about the center, and then the seating portion is rotated about the first shaft so that the second shaft is aligned with the second guide groove. Move it,
In the second seat state in which the seat is seated with the side of the vehicle as the back, while in the second seat where the seat is seated with the side of the vehicle as the back, the seat is rotated about the first axis. , After moving the second shaft along the second guide groove, while moving the seating portion around the second shaft, move the first shaft along the first guide groove so as to approach the side surface of the vehicle. The first seat state is such that the seating portion faces forward or rearward in the traveling direction of the vehicle.

Therefore, according to the vehicle conversion stool of the first aspect of the present invention, for example, in a railway vehicle, a plurality of seating portions are seated facing the front or the 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 along the first guide groove away from the side surface of the vehicle while rotating the seating portion around the second shaft, A second seat state in which the seat is rotated about the axis, the second shaft is moved along the second guide groove, and the seat is seated with the side surface of the vehicle as the back.
A so-called long seat state in which side surfaces of adjacent seating portions are in contact with each other is set. Therefore, even when the side surface of the seating portion is arranged so as to contact the side surface of the vehicle in the cross seat state, the first shaft moves away from the side surface of the vehicle along the first guide groove. Secure the space for the backrest by separating the side of the vehicle from the seat back side. Thus, in the cross-seat state, a relaxed seat is provided, while in the long-seat state, the aisle is widened to accommodate as many passengers as possible, and the time for stopping the vehicle can be shortened by smoothly getting on and off. Therefore, it is possible to realize a low-cost vehicle conversion stool that can be used both as a long seat and a cross seat with a simple structure without requiring a driving power source.

According to a second aspect of the present invention, there is provided the vehicle conversion stool according to the first aspect of the present invention, wherein the vehicle is in the first seat state facing forward or rearward in the traveling direction of the vehicle and the vehicle. The seat portion is rotated from one of the second seat states in which the side is seated to the back to the other, and the seat portion is returned by the seat portion returning means, and the seat portion is seated in the first seat state and the second seat state. The seat fixing portion is fixed to the support base by the portion fixing means so as not to rotate.

Therefore, according to the vehicle conversion seat according to the second aspect of the invention, the first seat state is switched to the second seat state or the second seat state is switched to the first seat state. At this time, the seat portion can be automatically returned by rotating the seat portion by the seat portion returning means. Further, in the first seat state and the second seat state, by fixing the seating portion to the support base by the seating portion fixing means, the passenger leans back due to the shaking, acceleration, and deceleration of the vehicle, and the seating portion receives an external force. Even if
The seating area can be prevented from changing and passenger safety is ensured.

According to a third aspect of the present invention, there is provided the vehicle conversion stool according to the second aspect, wherein the seat portion returning means is a hydraulic damper-equipped return device. Since the seat portion is rotated and returned slowly, the seat portion can be returned quietly with less impact, and the seat portion can be safely returned even when a person is near at the time of conversion.

A vehicle conversion stool according to a fourth aspect of the present invention is the vehicle conversion stool according to any one of the first to third aspects, in which two lower fulcrums on an extension line along both sides of the backrest are set as axes. The backrest is supported at the center so as to be tiltable by a supporting member within a predetermined angle range, and the supporting member is moved in a substantially horizontal direction along both side surfaces of the sitting portion by slide means attached to both sides of the sitting portion. Along with tilting the backrest from one to the other by the return device with a hydraulic damper, the support member is slid in the direction in which the backrest tilts by the sliding means to restore the backrest, so that the backrest is reduced. You can switch slowly without lifting. Therefore, 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 returning state in which the backrest is restored by the hydraulic damper-equipped restoring device and in the non-restoring state before the backrest is restored, the backrest is fixed to the seat so that the backrest does not move. The passenger's safety is ensured by preventing the backrest from changing even if an external force acts on the backrest when the passenger leans against the conversion seat due to acceleration or deceleration.

[Brief description of drawings]

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

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

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

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

5 (a) to 5 (c) are schematic views for explaining the movements of the door closer and lever of the conversion 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 stool when the backrest is in the returned state.

FIG. 8 is a circuit diagram showing a control circuit for the conversion stool.

FIG. 9 is a circuit diagram showing a control circuit for the solenoid of the conversion seat.

[Explanation of symbols]

1 ... 2 person conversion stool, 2 ... 1 person conversion stool, 3 ... Support stand, 4, 6 ... Seat, 5, 7 ... Backrest, 11, 30 ...
Door closer, 12, 31 ... Lever, 13 ... Sliding metal fitting, 1
4 ... Roller, 17 ... First guide groove, 18 ... Second guide groove, 2
1 ... 1st axis, 22 ... 2nd axis, 34 ... Slide bearing, 35 ... Support member, 36, 46 ... Arm, SOL1, S
OL2, SOL3 ... Solenoids.

─────────────────────────────────────────────────── ─── Continuation of front page (72) Junji Igarashi Junji Igarashi 3-9-60 Inada Shinmachi, Higashi-Osaka City, Osaka Prefecture Kinki Vehicle Co., Ltd. (72) Kenji Shimizu 3--9 Inada Shinmachi, East Osaka City, Osaka Prefecture No. 60 In Kinki Vehicle Co., Ltd. (56) Reference Japanese Unexamined Patent Publication No. 8-156665 (JP, A) Actual Opening 6-36949 (JP, U) Actual Opening 2-45834 (JP, U) Actual Opening Sho 60- 160234 (JP, U) Actual Kaihei 3-126727 (JP, U) JP 42-10568 (JP, B1) JP 29-6838 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B61D 33/00 B60N 2/14

Claims (4)

(57) [Claims] A support base 1. A is fixed to the floor of the vehicle, and a seat that is swingably supported by a horizontal surface to the support base, a backrest mounted to the seat, the bottom surface of the seating section the fixed at predetermined intervals in a side
One axis and a second axis, and an arc shape that is formed on the support table and guides the first axis
First guide groove and an arc shape that is formed in the support base and guides the second shaft.
And a second guide groove , the seating portion is seated facing the front or the rear in the traveling direction of the vehicle, and the seating portion is rotated about the second axis in the first seat state. After moving the first shaft along the first guide groove away from the side surface of the vehicle, the seating portion is rotated about the first shaft to move the second shaft into the second guide groove. And a second seat state in which the seat is seated with the side of the vehicle as the back, while the seat is seated with the side of the vehicle as the back in the second seat. The seat is rotated about one axis to move the second shaft along the second guide groove, and then the seat is rotated about the second shaft to move the first shaft. Move along the first guide groove toward the side surface of the vehicle, and Part convertible vehicular characterized by the first sheet state sit facing forward or backward in the traveling direction of the vehicle seat. 2. The vehicle conversion stool according to claim 1, wherein the first sitting person faces the front or the rear of the traveling direction of the vehicle.
A seat state and a second seat state in which the side surface of the vehicle is seated as a back, and a seat portion returning means for rotating and returning the seat portion from one to the other, the first seat state and the second seat state. And a seating part fixing means for fixing the seating part to the support so as not to rotate in the seat state. 3. The vehicle conversion stool according to claim 2, wherein the seating portion returning means is a hydraulic damper-equipped return device. 4. The vehicle conversion stool according to any one of claims 1 to 3, wherein the backrest has a predetermined angle range with two lower fulcrums on extension lines along both sides of the backrest as axes. A support member that tiltably supports inside, slide means that is attached to both sides of the seat portion and that moves the support member in a substantially horizontal direction along both side surfaces of the seat portion, and the backrest from either one. While tilting to the other side, the supporting member is slid in the direction in which the backrest tilts by the sliding means, and the restoring device with a hydraulic damper that restores the backrest, and the restoring device with the hydraulic damper restores the backrest. A backrest fixing hand that fixes the backrest to the seat so that the backrest does not move in the returning state and the non-restoring state before returning the backrest. Vehicle convertible seat characterized by comprising and.