JP3556763B2 - Retractable seat for railway vehicles - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a retractable seat provided in a railway vehicle.
[0002]
[Prior art and its problems]
Recently, retractable seats have been used in railway vehicles, especially commuter trains, to handle large volumes of transport during rush hours and to provide seating to as many passengers as possible except during congestion.
As a retractable seat, there is a manual drawer-type auxiliary seat provided near an entrance of a vehicle. The conventional manual pull-out auxiliary stool is constantly biased to the stored state to prevent the seat from falling down due to its own weight, and the user must pull out the seat to the use state against this storage biasing force. Did not. For this reason, when sitting, it is necessary to hold the stool by hand, and if you stand up with light luggage, the luggage will be caught or crushed between the seat and the storage part by the storage urging force of the seat There was a fear.
[0003]
Recently, in order to further increase the transportation efficiency, a railway vehicle in which all seats in the vehicle are retractable has appeared. The seat surface of such a retractable seat is a system in which both use (drawing) and storage are performed electrically by a switch in a driver's cab or a cabin, and the user cannot manually pull out the seat surface. Since it can be used and stored at the same time, it does not take much time, but since the operation is uniform, it is difficult to secure the operation that meets the demands of passengers.
[0004]
Further, in the conventional retractable seat, the armrest has to be manually pulled out separately from the rotation of the seat surface, which is troublesome.
[0005]
[Object of the invention]
The present invention has been made in view of the above problems, and when the seat is in the storage position and the use position, the seat is securely fixed, and the user can manually and lightly pull out the seat. It is an object of the present invention to obtain a retractable railway vehicle seat that can be operated by a drive mechanism.
[0006]
Summary of the Invention
A retractable seat for a railway vehicle according to the present invention includes a seat frame fixed in a railway vehicle; a storage position pivotally attached to the seat frame, and a storage position substantially perpendicular to a floor surface of the vehicle and a substantially horizontal use position. A rotatable seat frame; an electric drive mechanism for rotating the seat frame between the storage position and the use position;A drive pin that revolves around the center of rotation of the seat frame by the electric drive mechanism; a lock base that has a guide hole along the movement locus of the drive pin and rotates integrally with the seat frame; A lock bracket provided on the base and holding or releasing the drive pin; provided on the lock base to restrict rotation of the lock bracket, and integrating the drive pin and the lock base in a rotation direction; A lock lever that allows relative movement; and a drive lever, a lock base, a lock bracket, and a lock lever,When the seat frame is in the storage positionAboveWhen the interlocking relationship between the dynamic drive mechanism and the seat frame is released, the seat frame can be manually pulled out, and the seat frame is in the use position.ToThe electric drive mechanism and the seat frame are linkedRukoAnd features.
[0007]
In the present invention, the seat surface and the seat surface are rotated.electricThe disadvantage of the conventional retractable seat is solved by providing a clutch mechanism for controlling the interlocking with the drive mechanism. For example, when storingConsists of a drive pin, lock base, lock bracket and lock leverIf the clutch is turned on, the seat can be securely stored. Also, when pulling out the seat for useTheIf the clutch is turned off, it is possible to manually use the device with a light force. At this time, whether to pull out the seat is left to the judgment of the user. Once the seat is pulled out, the clutch is turned on and the seat is again stably fixed at the use position. For storage, the electric drive mechanism rotates the seat surface to the storage position while the clutch is on.
[0008]
The retractable seat for a railway vehicle according to the present invention is further provided with a damper which, when the interlocking relation between the electric drive mechanism and the seat frame is released, makes the seat frame self-standing and prevents the seat frame from rotating to the use position by its own weight. It is preferable to provide
[0009]
Further, it is preferable to provide a back frame and armrests that are interlocked with the rotation of the seat frame. Further, it is preferable that each seat is provided with a release switch for releasing the interlocking relationship between the electric drive mechanism and the seat frame when the seat frame is in the storage position.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to the illustrated embodiments.
FIG. 1 shows a use state (pull-out state) of the retractable seat 10 according to the present invention. The retractable seat 10 includes a seat surface portion 11, a backslip portion 12, an armrest portion 13, and a substantially U-shaped frame portion. The frame portion 14 has sleeve covers 15 on both sides thereof, and a riser plate 16 and a baseboard 17 are attached to legs fixed to the floor of the vehicle to form an external appearance. In addition, a use indicator light 18 is provided on the upper surface of the sleeve cover 15 to notify that manual pull-out is possible.
[0011]
FIG. 2 is a diagram illustrating a stored state of the retractable seat 10. The seat portion 11 and the armrest portion 13 are housed in the frame portion 14.
[0012]
Hereinafter, each part of the retractable seat 10 and the drive mechanism will be described with reference to FIGS. 3 to 14.
As shown in FIG. 3, the frame 20 of the retractable seat 10 has a substantially U-shaped integrated structure including, as main components, pillar portions 21 on both sides and leg portions 22 connecting the pillar portions 21. The columnar portion 21 is divided into an upper columnar portion 21a having the armrest portion 13 and a lower columnar portion 21b to which an electric drive mechanism, a clutch mechanism, and the like are mounted. The leg 22 includes a control box 80 and a heating device, which will be described later. The space surrounded by the columnar portion 21 and the leg portion 22 forms a storage recess 20a that stores the seat surface portion 11 and the backslip portion 12.
[0013]
The seat portion 11 is configured by mounting a seat cushion 32 for a seat on a seat frame 31 shown in FIG. The lower surface cover that forms the appearance of the seat portion 11 during storage is attached to the seat frame 31.
Seat brackets 33 are fixed to protrusions 33a provided on both side surfaces of the lower columnar portion 21b of the frame 20. Rotation support shafts 35, which are planted on the left and right rear ends of the seat frame 31, are rotatably inserted into a seat bearing 34 pierced near the front end of the seat bracket 33. The tip of the rotation support shaft 35 protrudes from the bearing bearing 34 and is fitted into a locking hole 61a of a lock base 61 constituting a clutch mechanism. That is, the seat frame 31 and the lock base 61 are supported by the seat bracket 33 so as to be able to rotate around the seat bearing 34. The pivoting end of the seat frame 31 on the storage position side is regulated by the back slide portion 12, and the pivot end on the use position side is provided by a stopper 36 provided on the inner surface side (the storage recess 20 a side) of the seat bracket 33. Be regulated. The stopper 36 is provided with a sensor 37 for detecting the approach of the seat surface 11. The sensor 37 is composed of, for example, a photocoupler. Therefore, the seat 11 can be rotated between a storage position where it is stored substantially vertically in the storage recess 20 a of the frame 20 and a use position where the stopper 36 restricts the storage position.
[0014]
The backslip portion 12 is configured by mounting a backseat seat cushion 39 on a back frame 38. The upper portion of the back frame 38 is swingably supported by the back support shaft 24 implanted at the upper end of the upper columnar portion 21a of the frame 20. On the other hand, the bracket 38a provided at the lower part of the back frame 38 and the bracket 31a provided at the rear end of the seat frame 31 are connected by a substantially semi-arc-shaped backslide link 48, When the frame 31 is moved between the storage position and the use position, the backslide portion 12 is kept at the same height as the storage position where it is stored almost vertically in the depth of the storage recess 20 a of the frame 20, and the lower portion is maintained. It can be moved forward and forward to a use position inclined at a predetermined angle. The pivoting position of the back link 48 relative to the seat frame 31 is eccentric from the rotation support shaft 35.
[0015]
An armrest bracket 41 is fixed to the protrusion 41a of the upper columnar portion 21a of the frame 20. An armrest rotation shaft 42 is rotatably inserted into the armrest bracket 41, and an armrest frame 40 is pivotally mounted on the armature rotation shaft 42 on the storage recess 20 a side by a bush 43 for preventing the shaft from coming off. ing. The armrest frame 40 (armrest portion 13) is rotatable at a front position of the upper columnar portion 21 a of the frame 20 between a storage position where it is stored substantially vertically and a use position where it is pulled out substantially horizontally.
An arm 44 is fixed to the armrest rotation shaft 42 substantially perpendicular to the armrest, and one end of a turnbuckle 45 is pivotally supported at the tip of the arm 44.
[0016]
Next, the electric drive mechanism 50 for rotating the seat 11 will be described.
A drive unit bracket 51 is fixed to a projection 51a provided below the projection 33a in the lower columnar portion 21b of the frame 20. The drive unit 52 is fixed to the drive unit bracket 51. The drive unit 52 has a motor 53 as a drive power source, and gives a revolving motion about the rotation support shaft 35 to a drive pin 63 implanted in a rotating portion 52a at the tip of the drive unit 52 so that the seat surface 11 And the operation of storing the seat portion 11 is performed.
[0017]
The rotation support shaft 35 is provided with a lock base 61 having a substantially fan shape so as to rotate integrally. FIG. 5 is a view of the lock base 61 as viewed from the inner surface side (the storage recess 20a side). The lock base 61 has a locking hole 61 a in a main part of a fan shape for fitting the tip of the rotation support shaft 35 so as to be relatively non-rotatable, and a seat frame around the seat bearing 34 of the seat bracket 33. It rotates with 31. The lock base 61 is provided with a guide 62, which is a substantially arc-shaped opening, and the drive pin 63 is fitted to the guide 62 so as to be relatively rotatable (slidable). On the lock base 61, a substantially U-shaped lock bracket 64 is pivotally supported so as to be rotatable about a shaft 64a, and the drive pin 63 is fitted in the U-shaped portion of the lock bracket 64. .
[0018]
A lock lever 65 is pivotally mounted on the lock base 61. The lock lever 65 includes a first lock lever 65a, a second lock lever 65b, and a connection link 65c. Axle in middle65dA cable 56 for transmitting the traction force of the actuator 55 is fixed to one end of the first lock lever 65a pivotally supported by the lock base 61. Second lock lever having locking surface 65s65bThe one end opposite to the locking surface 65s is pivotally supported on the lock base 61 by a shaft 65e. The connection link 65c is pivotally connected to the first and second lock levers 65a and 65b by shafts 65f and 65g. 2nd lock lever65bThe locking surface 65s of the lock bracket 64 is disengageable from the locking recess 64s of the lock bracket 64, and prevents the lock bracket 64 from rotating when engaged, and allows the same when not engaged. And the second lock lever65bWhen the actuator 55 is actuated and one end of the first lock lever 65a is pulled via the cable 56 in a state where the locking surface 65s of the lock bracket 64 and the locking recess 64s of the lock bracket 64 are engaged, the leverage operation is performed. The connection link 65c is connected to the second lock lever65bIs turned in the unlocking direction (downward in FIG. 5) to lock the locking surface 65s.Lock recessThe engagement of 64s is released, and the relative sliding of the drive pin 63 and the guide 62 is allowed.
[0019]
A spring hook pin 66 is implanted on the outer surface side (FIG. 6) of the lock base 61. A tension spring 69 is stretched between the spring hook pin 66 and the second lock lever 65b of the lock lever 65, and the lock surface 65s of the lock lever 65b is fixed to the lock surface 64s of the lock bracket 64. Is always urged in the direction of engagement. The clutch mechanism 60 is a mechanism for engaging and disengaging the locking surface 65s of the lock lever 65b and the locking surface 64s of the lock bracket 64. The ON state means that the locking surfaces 65s and 64s are engaged. The engaged state and the off state refer to the state in which the engagement is released.
[0020]
The lower end of the damper 70 and the lower end of the turnbuckle 45 are also supported by the spring hook pin 66. The upper end of the damper 70 is mounted on the armrest bracket 41, and expands and contracts with the rotation of the lock base 61, that is, the seat surface 11, and supports the lock base 61 with a constant urging force in the storage direction. The constant urging force is a light urging force that does not cause the seat surface portion 11 to fall down by its own weight when the clutch mechanism 60 is in the off state, and at the same time does not cause a large resistance when the seat surface portion 11 is manually pulled out.
[0021]
Further, the turnbuckle 45 transmits the rotation of the lock base 61, that is, the rotation of the seat surface 11 to the arm 44 of the armrest rotation shaft 42, and interlocks with the rotation of the seat surface 11 between the storage position and the use position. The armrest 13 is rotated between the storage position and the use position.
[0022]
One end of another tension spring 68 is supported by the spring hook pin 66, and the other end of the tension spring 68 is supported by a spring hook pin 64 b on the lock bracket 64. The tension spring 68 is an urging force reversing spring that applies a rotational urging force in the opposite direction to the bracket 64 according to the rotational position of the lock bracket 64.
[0023]
Next, the operation of the retractable seat 10 and the clutch mechanism 60 will be described with reference to FIGS. 7 and 8 are side views of the retractable seat 10 in the retracted state and the used state, respectively. FIGS. 9 to 14 show the operating sequence of the clutch mechanism 60 (lock base 61), in particular, the lock viewed from the retracted recess 20a side. It is a side view of the base 61. 7 to 14, the left side of the drawing is the rear direction of the frame 20.
[0024]
FIG. 7 shows a stored state of the retractable seat 10. The lock base 61 is in the storage position along with the seat surface 11 in the storage position substantially perpendicular to the floor of the vehicle, and the clutch mechanism 60 is in the on state. Further, the damper 70 connected to the lock base 61 is extended to prevent the seat portion 11 from falling down due to its own weight and to be independent. At this time, the clutch mechanism 60 simultaneously fixes the seat surface 11 to the storage position. At this time, the turnbuckle 45 connected to the lock base 61 stores the armrest frame 40 interlocking with the armrest rotation shaft 42 via the arm 44 in a substantially vertical storage position. Further, the backstrip portion 12 is stored in the innermost portion of the frame 20 in a substantially vertical storage state.
[0025]
FIG. 9 is an enlarged view of the lock base 61 when the seat 11 is stored and fixed. The locking surface 64 s of the lock bracket 64 is locked by the locking surface 65 s of the lock lever 65, and Has no driving force. Therefore, in this state, even if the user tries to pull out the seat surface portion 11 (even if the lock base 61 is rotated clockwise in FIG. 9), the seat portion 11 can be pulled out by the reaction force of the reduction mechanism of the drive unit 52 that drives the drive pin 63. Absent.
[0026]
When a clutch-off command is issued to the clutch mechanism 60 in the storage fixed state, the actuator 55 operates, and the first lever 65a is pulled via the cable 56. Then, the locking between the locking surface 65s of the second lever 65b and the locking surface 64s of the lock bracket 64 is released via the connecting link 65c. Then, the rotation of the lock bracket 64 in the direction of the arrow in FIG. 10 becomes possible, and the use indicating lamp 18 is lit to notify that manual pull-out is possible. At this time, since the seat surface 11 is self-standing by the damper 70 connected to the lock base 61, it does not fall down by its own weight (FIG. 10).
[0027]
When the seat portion 11 is manually pulled out with the clutch mechanism 60 turned off, the lock base 61 rotates clockwise in FIG. 9 together with the shaft 35 and moves relative to the fixed drive pin 63. I do. Then, the bracket 64 relatively moves with respect to the drive pin 63 and rotates about the shaft 64a. At this time, the tension spring 68 moves until the pin 64b is positioned on a straight line connecting the pin 66 and the shaft 64a. Once the pin 64b has exceeded the conceivable point, the pin returns to its own elasticity to rotate the lock bracket 64 clockwise in FIG. When the seat portion 11 is pulled out to a substantially horizontal use position, as shown in FIG. 11, the lock base 61 rotates about 90 ° from the state of FIGS. 10 to 11 around the seat bearing 34 of the lock bracket 33 as an axis. Move.
[0028]
When the lock base 61 is turned, the turnbuckle 45 connecting the lower end to the spring hook pin 66 is pushed up to the position shown in FIG. 7, and the arm 44 is turned upward, so that the armrest frame 40 is in a substantially horizontal use position. Drawn to. Further, the lower portion of the back frame 38, which is interlocked with the seat frame 31 by the back link 48, is pulled out so that the back slip portion 12 forms a predetermined inclination angle.
[0029]
In the above manual pull-out operation, the force required to extend the tension spring 68 in the initial stage of the pull-out is necessary, so that the seat surface portion 11 is not carelessly pulled out. 63 does not give resistance to the rotation of the seat surface 11. In addition, the seat surface portion 11 and the backstrip portion 12 that are self-supported by the force of the damper 70 do not jump up or fall down even if they release their hands during the pulling.
[0030]
When the seat portion 11 is manually pulled out and the sensor 37 provided on the stopper 36 detects the proximity of the seat portion 11, the actuator 55 stops pulling the cable 56 and releases the lock-off state of the lock lever 65. The lock lever 65 returns to the lockable state by the urging force of the tension spring 69. At the same time, the motor 53 of the drive unit 52 is operated to cause the drive pin 63 to revolve around the rotation support shaft 35 and rotate in the direction of the arrow in FIG. The drive pin 63 enters the U-shaped opening of the lock bracket 64 and rotates the lock bracket 64 to the lock position. Then, the locking surface 65s of the lock lever 65 that has returned to the lockable state engages with the locking surface 64s of the lock bracket 64, and the lock base 61 is fixed to the use position of the seat surface portion 11. That is, the clutch mechanism 60 is turned on so that the rotation of the lock bracket 64 is not allowed (FIG. 13). At this time, the use indicating lamp 18 is turned off.
[0031]
When the clutch mechanism 60 completes the above operation, the retractable seat 10 is fixed to the use state shown in FIG. That is, the seat surface 11 and the armrest 13 are fixed at a substantially horizontal use position, and the lower portion of the backslider 12 is pulled out to form a predetermined angle of inclination.
[0032]
The storage of the retractable seat 10 is performed electrically. In the clutch-on state shown in FIG. 13, when a storage operation command is issued, the motor 53 revolves the drive pin 63 via the drive unit 52 in the storage direction opposite to the lock direction. Since the rotation of the lock bracket 64 is restricted by the lock lever 65, when the drive pin 63 revolves, the lock base 61 rotates in the direction of the arrow in FIG. With the rotation of the lock base 61, the seat surface portion 11 and the armrest portion 13 each rotate to a substantially vertical storage position, and the back sliding portion 12 linked to the seat surface portion 11 similarly moves to the storage position (FIG. 14). .
[0033]
Next, the control operation of the retractable seat will be described mainly with reference to FIGS. 7, 8, and 15. FIG. FIG. 15 illustrates a control operation system according to the present embodiment. The driving of the electric drive mechanism 50 and the clutch mechanism 60 (specifically, the motor 53 and the actuator 55) is controlled by a control device 80 provided in each retractable seat 10. The control device 80 includes an input buffer (photocoupler) 88 for receiving an input from the switch and the sensor 37, an output buffer (relay) 89 for turning on or off the use indicator lamp 18, a control circuit 90, a drive circuit 91, and an overcurrent detection circuit 92. Having. The drive circuit 91 drives the motor 53 and the actuator 55, and the overcurrent detection circuit 92 detects an overcurrent generated in the motor 53 and the like. The current control by the overcurrent is used for stop control of the motor 53 and the actuator 55. Then, the lock position of the clutch mechanism 60 and the stop position in the storage operation are determined by the current control.
[0034]
For example, when an unexpected load is applied to the drive pin 63 of the electric drive mechanism and the drive unit stops, the torque to the drive unit 52 that drives the drive pin 63 increases, and the current of the motor 53 increases. When the overcurrent detection circuit 92 incorporated in the control device 80 detects the peak of this overcurrent in the drive circuit 91, it transmits it to the input buffer 88. The input buffer 88 processes this as a stop signal, and the control circuit 90 causes the drive circuit 91 to stop supplying current to the motor 53 via the output buffer 89, so that an excessive load is applied to the electric drive mechanism 50 or the clutch mechanism 60. First, the operation of the drive pin 63 is stopped.
[0035]
Two switches are connected to the control device 80. First, there is a remote control device 81 provided in a train cab, a conductor room, or the like. The remote control device 81 includes a drawer switch 83 and a storage switch 85, and operates the retractable seat 10 of the entire vehicle. Further, an individual control device 82 similar to the remote control device 81 is provided for each retractable seat 10. The individual control device 82 includes a drawer switch 84 and a storage switch 86, and operates the individual storage-type seats 10. Upon receiving these switches 83 and 85 (84 and 86), the control device 80 activates the electric drive mechanism 50 or the clutch mechanism 60, specifically, the motor 53 and the actuator 55.
[0036]
When the drawer switch 83 (84) is turned on in the housed state shown in FIG. 7, the control device 80 activates the actuator 55 via the drive circuit 91 and the lock base 61 via the lock lever 65 and the lock bracket 64. The lock of the relative slide between the drive pin 63 and the drive pin 63 is released. At the same time, the usage indicator lamp 18 is turned on through the output buffer 89. In this state, since the clutch mechanism 60 is off, the seat portion 11 can be manually pulled out.
[0037]
As described above, when the seat surface portion 11 is manually pulled out, the lock base 61 that engages with the rotation support shaft 35 rotates about 90 ° in the pulling-out direction (clockwise direction in FIG. 7) about the engagement hole 61a. Move. At the same time, the arm 44 is rotated by the movement of the turnbuckle 45 connecting the lock base 61 and the arm 44, and the armrest frame 40 is rotated about the armrest rotation shaft 42 to be in the use position. In addition, the lower portion of the backsliding portion 12 is pulled out in conjunction with the seat surface portion 11, and the backsliding portion 12 moves to a use position inclined at a predetermined angle.
The pulling out of the seating portion 11 is regulated by the stopper 36, but when the sensor 37 detects the proximity of the seating portion 11, the proximity detection signal is input to the input buffer 88. Then, the output buffer 89 turns off the use indicator lamp 18, the drive circuit 91 starts the motor 53, and the drive unit 52 fixes the drive pin 63 along the guide 62 of the lock base 61 in the fixing direction (clockwise direction in FIG. 7). ). At the same time, the drive circuit 91 activates the actuator 55 to return the lock lever 65 and the lock bracket 64 of the clutch mechanism 60 to the locked position. At this time, when the clutch is completely turned on and the drive pin 63 reaches a dead end, an overload is applied to the drive unit 52 and an overcurrent flows to the motor 53. The overcurrent detection circuit 92 detects the peak of this overcurrent and transmits it to the input buffer 88. Then, the control device 80 stops the operation of the drive pin 63, and the lock operation is completed. Then, the clutch mechanism 60 is in the clutch-on state, and the seat surface portion 11, the backslip portion 12, and the armrest portion 13 are fixed at the use position.
[0038]
To store the seat portion 11 and the like from the use position shown in FIG. 8, the storage switch 85 (86) is pressed. The lock of the lock base 61 is turned on at the end of the pull-out operation, and in the state where the clutch is turned on, the rotation to the storage position is started by electric power. When the storage switch 85 (86) is turned on, the control device 80 operates the drive unit 52 by rotating the motor 53 through the drive circuit 91 in a direction opposite to the above-described lock operation, and the drive pin 63 rotates to the storage state. To start. That is, the lock base 61 is rotated together with the drive pin 63 in the direction opposite to the pulling-out operation (counterclockwise direction in FIG. 8), and the seat frame 31 is rotated to the substantially vertical storage position via the rotation support shaft 35. By moving, the seat 11 is stored. The lower portion of the back frame 38 is pushed in in conjunction with the storing operation of the seat frame 31, and the back sliding portion 12 is stored in a substantially vertical storing position. At the same time, the armrest frame 40 connected to the armrest pivot shaft 42 via the turnbuckle 45 and the arm 44 also pivots to the substantially vertical storage position. When the storage is completed and the rotation of the drive pin 63 stops at the lock base 61 reaching the storage position, the control device 80 that detects the peak of the overcurrent of the motor 53 stops supplying the current to the motor 53. Then, the storage is completed.
[0039]
In the above description, the current control by the control device 80 is used in the normal positioning of the drawer and the storing operation. However, this current control is also effective for an accident during the storing operation. For example, if the storage is driven by electric power, storage in a state where a person is riding on the seat portion 11 or luggage is sandwiched between the seat portion 11 and the backslip portion 12 is not only impossible to store, but also electric The drive mechanism 50 or the clutch mechanism 60 may be broken. In this case, the safety can be ensured by stopping the motor when the overcurrent peak of the motor 53 is detected in the same manner as described above. In the case where the storage is stopped, if the storage switch 85 (86) is turned on and the storage is performed again after removing the obstacle, the storage can be performed as usual.
[0040]
In addition, the rotation of the backrest portion 12 and the armrest portion 13 is interlocked with the seat surface portion 11, and therefore, even if the rotation of the backslide portion 12 or the armrest portion 13 fails during electric storage. Since the malfunction appears as an increase in the torque to the electric drive mechanism 50 via the clutch mechanism 60, the control device 80 that detects the overcurrent of the motor 53 stops the storage and prevents damage to the electric drive mechanism 50 and the like.
[0041]
As described above, the present invention has been described based on the illustrated embodiment, but the present invention is not limited to this embodiment.No. For example,Structure of entire retractable seat and frameMay be a mode other than the embodiment.
[0042]
【The invention's effect】
As described above, according to the present invention, when the seat is in the storage position and the use position, the seat is securely fixed, the seat can be pulled out lightly manually by the user, and the storage is performed by the electric drive mechanism. Thus, it is possible to obtain a retractable railway vehicle seat that can be carried out.
[Brief description of the drawings]
FIG. 1 is a perspective external view showing a use state of a retractable seat for a railway vehicle according to the present invention.
FIG. 2 is a perspective external view showing a stored state of the retractable seat of FIG. 1;
FIG. 3 is an exploded perspective view showing a frame portion and an armrest portion of the retractable seat.
FIG. 4 is an exploded perspective view showing the seat surface, a backstrip, a rotary drive mechanism, and a clutch mechanism.
FIG. 5 is an inner view of the lock base.
FIG. 6 is an external view of a lock base.
FIG. 7 is a side view showing a main driving mechanism of the retractable seat in a retracted state.
FIG. 8 is a side view showing a main drive mechanism of the retractable seat in use.
FIG. 9 is a side view showing the clutch mechanism in the storage position and the clutch is on.
FIG. 10 is a side view showing the clutch mechanism in which the clutch has shifted to the off position in the storage position of FIG. 9;
FIG. 11 is a side view showing the clutch mechanism immediately after manual withdrawal of the seat portion is completed.
FIG. 12 is a side view showing the clutch mechanism in a state where the clutch is being turned on at the use position of FIG. 11;
FIG. 13 is a side view showing the clutch mechanism in a state where the clutch is turned on and the fixing of the seat surface is completed at the use position of FIG. 11;
14 is a side view illustrating the clutch mechanism in a state where the clutch mechanism is rotated from the use position in FIG. 11 to the storage position in FIG. 9 by a drive mechanism.
FIG. 15 is a circuit diagram of an electric system according to the present embodiment.
[Explanation of symbols]
10 retractable seats
11 Seat
12 Backstrip
13 Armrest
14 Frame part
18 Use indicator light
20 frames
31 Seat frame
33 Seat bracket
34 bearing bearing
35 Rotation support shaft
36 Stopper
37 sensors
38 back frame
40 armrest frame
41 Armrest bracket
42 armrest rotation axis
44 arm
45 Turnbuckle
48 Backstrip Link
50 Electric drive mechanism
51 Drive unit bracket
52 drive unit
53 motor
55 Actuator
60 Clutch mechanism
61 Lock Base
62 Guide
63 Drive pin
64 lock bracket
65 Lock lever
66 Spring hook pin
68 69 Tension spring
70 Damper
80 Control device
81 Remote control device
82 Individual control device

Claims (5)

In retractable seats for railway vehicles installed in railway vehicles,
A seat frame fixed in the railcar;
A seat frame pivotally attached to the seat frame and rotatable between a storage position substantially perpendicular to the floor of the vehicle and a substantially horizontal use position;
An electric drive mechanism for rotating the seat frame between the storage position and the use position;
A drive pin that revolves around the center of rotation of the seat frame by the electric drive mechanism;
A lock base having a guide hole along the movement trajectory of the drive pin and rotating integrally with the seat frame;
A lock bracket provided on the lock base for holding or releasing the drive pin;
A lock lever provided on the lock base for restricting the rotation of the lock bracket to integrate the drive pin and the lock base in the rotation direction or to allow relative movement;
Comprising a said drive pin, the lock base, the lock bracket and the lock lever, when the seat frame is in the retracted position of the seat surface frame by releasing the interlocking relationship between the electrostatic dynamic drive mechanism and the seat surface frame to enable manual drawer, when the seat surface frame is in the use position, the electric drive mechanism and the housing seating for rail vehicles, wherein the benzalkonium is interlocked with the seat surface frame. 2. The railway vehicle according to claim 1, further comprising: a damper that, when the interlocking relationship between the electric drive mechanism and the seat frame is released, makes the seat frame self-standing and prevents the seat frame from rotating to the use position by its own weight. Retractable seat. 3. The seat frame according to claim 1, wherein the lower portion is connected to the seat frame so as to be movable forward of the seat in conjunction with the rotation of the seat frame. A retractable seat for a railway vehicle provided with a back frame that can be moved forward and forward to a use state inclined at a predetermined angle. 4. The seat frame according to claim 1, wherein the seat frame is rotated between a substantially vertical storage position and a substantially horizontal usage position in conjunction with the rotation between the storage position and the usage position. railway vehicle retractable seat armrest has been gills Bei to be. In any one of claims 1 to 4, further, when the seat frame is in the retracted position, release switch for releasing the interlocking relationship between the electric drive mechanism and the seat surface frame is provided in each seat Retractable seat for railway vehicles.

Images