JP2013001347A - Lift-up seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lift-up seat for vehicle, capable of making an occupant securely recognize that a seat body is in an unlocked state.SOLUTION: The lift-up seat 10 for vehicle has: a front-rear slide mechanism 11A which moves the seat body 2 along a vehicle front-rear direction with respect to a vehicle body floor 21; a rotating mechanism which moves along the front-rear slide mechanism 11A, and rotates the seat body 2 horizontally between an initial position where the seat body 2 faces the vehicle front and a rotational position where the seat body 2 faces a door opening part; and an external slide mechanism 11D which moves the seat body 2 along a seat front-rear direction of the seat body 2 with respect to the rotating mechanism. Then, the lift-up seat 10 for vehicle includes a driving mechanism which drives at least any one of the front-rear slide mechanism 11A and external slide mechanism 11D when a lock mechanism detects the unlocked state to move the seat body 2 toward the vehicle front.

Description

  The present invention relates to a vehicle lift-up seat.

  As a seat device used in a welfare vehicle or the like, a vehicle lift-up seat (hereinafter referred to as a lift-up seat) having a moving mechanism for moving a seat body on which an occupant is seated through a door opening on the side of the vehicle to the outside of the vehicle interior. Is known (see, for example, Patent Document 1). Specifically, the lift-up seat moving mechanism disclosed in Patent Document 1 is supported by a first slide mechanism that moves the seat body along the vehicle longitudinal direction with respect to the vehicle body floor, and the first slide mechanism, A rotation mechanism that horizontally rotates between a first position in which the seat body faces the front of the vehicle and a second position in which the seat body faces the door opening, and the seat body in the seat longitudinal direction of the seat body with respect to the rotation mechanism A second slide mechanism that moves along the second slide mechanism.

Incidentally, some lift-up seats described above are provided with a lock mechanism for fixing the seat body in order to restrict the movement of the seat body relative to the vehicle body floor for the purpose of restraining the occupant during a collision or the like.
In addition, a technology has been developed that alerts the occupant when a malfunction occurs in the lock mechanism and the lock mechanism is not locked. For example, Japanese Patent Application Laid-Open No. 2004-228561 has a configuration that emits a warning sound and makes the engine unstartable when the seat body is not locked (unlocked) and the seat back is not moved forward. It is disclosed (for example, see Patent Document 2).

JP 2010-89733 A Japanese Patent Laid-Open No. 9-136666

  However, as in the configuration of Patent Document 2 described above, there may be a space where an occupant is seated in the seat body even when the seat back is moved forward in an unlocked state. There is a risk that the occupant will be seated without noticing that it is in an unlocked state.

  Therefore, an object of the present invention is to provide a lift-up seat for a vehicle that allows an occupant to reliably recognize that a seat body is in an unlocked state.

  In order to achieve the above-mentioned object, the invention described in claim 1 is directed to a seat body (for example, the seat body 2 in the embodiment) installed on the vehicle body floor (for example, the vehicle body floor 21 in the embodiment). A moving mechanism (for example, the moving mechanism 11 in the embodiment) that moves the inside and outside of the passenger compartment through the opening (for example, the door opening 1 in the embodiment), and the moving mechanism moves the seat body to the vehicle body. A first slide mechanism (for example, the front / rear slide mechanism 11A in the embodiment) that moves along the vehicle front-rear direction with respect to the floor, and the first main body moves along the first slide mechanism, and the seat body faces the front of the vehicle. Between the first position (for example, the initial position in the embodiment) and the second position (for example, the rotational position in the embodiment) facing the opening. A rotating mechanism (for example, the rotating mechanism 11B in the embodiment) to be moved, and a second slide mechanism (for example, an outer slide in the embodiment) that moves the seat body along the front-rear direction of the seat body with respect to the rotating mechanism. A vehicle lift-up seat (for example, the vehicle lift-up seat 10 in the embodiment) having a mechanism 11D), and a lock mechanism (for example, in the embodiment) that fixes the seat body to the first position in the vehicle interior. The lock mechanism 12), a detection sensor (for example, a limit switch 89 in the embodiment) for detecting the lock state of the lock mechanism, and the detection sensor detecting that the lock mechanism is in an unlocked state, At least one of the first slide mechanism and the second slide mechanism Driving mechanism is driven to move the seat body to the vehicle front (e.g., the drive mechanism 25 in the embodiment) and, characterized by comprising a.

  The invention described in claim 2 includes an occupant detection device (for example, an occupant detection device 97 in the embodiment) that detects whether an occupant is present on the seat body, and the drive mechanism includes the occupant detection device. The first slide mechanism and the second slide mechanism are driven on the basis of the detection result by the method.

  In the invention described in claim 3, when the occupant detection device detects that the occupant is present on the seat body, the drive mechanism includes the first slide mechanism and the second slide mechanism. Only one slide mechanism is driven.

According to the first aspect of the present invention, when the seat main body is in an unlocked state, at least one of the first slide mechanism and the second slide mechanism is driven, and the seat main body is moved to the vehicle. By moving forward, the space at the foot of the seat body can be reduced, making it difficult for the occupant to sit. Accordingly, it is possible to make the occupant surely recognize that the seat body is in the unlocked state by visual sense or bodily sensation.
In this case, it is possible to urge the occupant to prohibit seating in the unlocked state by using a configuration of a vehicle lift-up seat that moves the seat body into and out of the passenger compartment through an opening provided on the side of the vehicle. Therefore, an increase in device cost can be suppressed.

  According to the second aspect of the present invention, the driving of the first slide mechanism and the outer slide mechanism can be controlled in accordance with the presence or absence of the occupant's seating.

  According to the invention described in claim 3, when it is detected that the occupant is seated, by driving only one of the first slide mechanism and the second slide mechanism, It is possible to make it difficult for the occupant to sit while securing a space for the occupant's feet to fit in the foot space of the seat body. Therefore, it can be recognized that the passenger sitting on the seat body is in the unlocked state.

It is a perspective view which shows the lift up seat in this embodiment, and is a perspective view when the vehicle interior side is seen through the door opening part of the rear seat side of a vehicle. It is a perspective view which shows the operation state of a lift up seat. It is the side view which looked at the lift-up seat from one side (vehicle compartment outer side) of the left-right direction. It is the side view which looked at the lift-up seat from the other side (vehicle compartment side) in the left-right direction. It is a block diagram of ECU. It is a flowchart for demonstrating the process of ECU in a seating prohibition mode. It is a side view of the lift up seat for explaining operation of the lift up seat in the seating prohibition mode.

Next, embodiments of the present invention will be described with reference to the drawings.
(Lift up seat)
FIG. 1 is a perspective view showing a lift-up seat 10, and is a perspective view when the vehicle interior side is viewed through the door opening 1 on the rear seat side of the vehicle.
As shown in FIG. 1, a lift-up seat 10 according to the present embodiment is installed in a seat portion on the rear seat side of a welfare vehicle, for example, and passes through a door opening (opening) 1 provided on the side of the vehicle, thereby 2 is moved in and out of the passenger compartment while the passenger is seated. In the following description, the front-rear direction with respect to the vehicle is referred to as the vehicle front-rear direction, and the front-rear direction with respect to the seat body 2 is referred to as the seat front-rear direction. Further, when the front-rear direction of the seat coincides with the front-rear direction of the vehicle and it is not necessary to distinguish between the two, the front-rear direction is simply used.

  The lift-up seat 10 is disposed below the seat cushion 4A at an initial position, which will be described later, and a seat body 2 in which a seat back 4B is tiltably connected to a rear end portion of the seat cushion 4A. And a lock mechanism 12 (see FIG. 4) for restricting the movement of the seat body 2. The seat body 2 includes a reclining mechanism (not shown) for electrically adjusting the inclination angle of the seat back 4B with respect to the seat cushion 4A.

Here, the basic operation of the lift-up seat 10 of this embodiment will be described first. FIG. 2 is a perspective view showing an operating state of the lift-up seat 10.
2A, 2 </ b> B, and 2 </ b> C sequentially show states when the seat body 2 is electrically operated by the moving mechanism 11. FIG. 1 shows an initial state (first position) in which the seat body 2 faces the front of the vehicle at a predetermined position on the rear seat side of the passenger compartment.

In the case of moving the seat body 2 from the initial state shown in FIG. 1 to the outside of the passenger compartment, first, the seat body 2 is slightly moved toward the front of the vehicle.
Next, as shown in FIG. 2A, the seat body 2 is rotated toward the door opening 1 side while moving further forward. At this time, the seat body 2 is rotated while being advanced in order to prevent interference between the seat body 2 and the opening edge or the like (pillar or the like) of the door opening 1. A position where the seat body 2 faces the door opening 1 is defined as a rotation position (second position).

Thus, when the seat body 2 is rotated 90 ° in the direction of the door opening 1 as shown in FIG. 2 (B), the seat body 2 is then moved from the door opening 1 as shown in FIG. 2 (C). Move forward so that it protrudes diagonally below the passenger compartment. As a result, the seat body 2 moves forward to a sufficiently low position outside the passenger compartment, and passengers can get on and off from the seat body 2 at this point. The position at which the occupant gets in and out of the passenger compartment is defined as the boarding / exiting position of the seat body 2.
Further, when the seat body 2 at the getting-on / off position is returned to the initial position on the vehicle interior side, the seat body 2 is operated in the reverse direction in the reverse order to the above-described order.

(Movement mechanism)
FIG. 3 is a side view of the lift-up seat 10 as viewed from one side in the left-right direction (outside the passenger compartment).
As shown in FIG. 3, the moving mechanism 11 includes a front / rear slide mechanism (first slide mechanism) 11A installed on a vehicle body floor 21 in a vehicle interior, and a rotation mechanism 11B attached on the front / rear slide mechanism 11A. The elevating slide mechanism 11C attached on the rotating mechanism 11B and the outer slide mechanism (second slide mechanism) 11D attached on the elevating slide mechanism 11C and directly supporting the seat body 2 are provided. Yes.

  The front / rear slide mechanism 11A is mainly for moving the seat body 2 along the vehicle longitudinal direction on the vehicle interior side when the rotation mechanism 11B is operated. The rotation mechanism 11B moves the seat body 2 between the initial position and the rotation position. It is for turning around. Further, the elevating slide mechanism 11C advances the seat body 2 at the rotational position so as to protrude obliquely downward outside the vehicle compartment from the door opening 1, and the outer slide mechanism 11D mainly moves the seat body 2 in the front-rear direction of the seat. It is for moving to.

  The front / rear slide mechanism 11A includes a pair of guide rails 22 fixedly installed on the vehicle body floor 21 along the vehicle front-rear direction, a pair of sliders 23 engaged with the guide rails 22 so as to be slidable in the front-rear direction, and these A support plate 24 provided so as to span the upper ends of the sliders 23 and a drive mechanism 25 for moving the support plate 24 in the vehicle front-rear direction with respect to the vehicle body floor 21 are provided.

  The pair of guide rails 22 are disposed below both side portions of the seat body 2 at the initial position. The slider 23 includes a plurality of guide rollers 26 supported by the guide rails 22 so as to be able to roll. The guide rollers 26 are restricted by the guide rails 22 from being displaced in the left-right direction and the up-down direction.

  The drive mechanism 25 includes a ball screw mechanism 31 disposed between the vehicle body floor 21 and the support plate 24, and a motor 32 that transmits the drive force to the ball screw mechanism 31. Thus, the support plate 24 is moved in the vehicle front-rear direction.

The rotation mechanism 11B is fixedly installed at a substantially central portion in the left-right direction on the support plate 24, and includes a bearing 34 that rotatably supports the turntable 33, and a drive mechanism 35 that rotates the turntable 33 relative to the support plate 24. And.
The drive mechanism 35 includes a ring gear 36 that is fixedly installed coaxially on the outer peripheral side of the bearing 34 on the support plate 24, and a pinion gear 37 that is fixedly installed on the turntable 33 and attached to the rotating shaft meshes with the external teeth of the ring gear 36. And a driving force of the motor 38 is caused to act as a rotational force on the turntable 33 via the pinion gear 37 and the ring gear 36.

  The elevating slide mechanism 11C is installed on both left and right sides of the turntable 33 and extends in parallel along the vehicle longitudinal direction, and a rear base 42 supported by each linear guide 41 on the rear side along the longitudinal direction. A front base 43 disposed in front of the rear base 42, a link mechanism 44 for connecting the bases 42, 43, and a drive mechanism for moving the elevating slide mechanism 11C along the front-rear direction of the seat body 2 ( (Not shown).

  The rear base 42 includes a main body plate 46 extending in the left-right direction so as to bridge the linear guides 41, and a pair of brackets 47 erected from both the left and right sides of the main body plate 46. A pair of sliders 48 are installed at positions overlapping the linear guide 41 in the vertical direction on the rear base 42, and the rear base 42 is slidably supported on the linear guide 41 via these sliders 48.

  On the other hand, the front base 43 has a main body plate 51 extending in the left-right direction so as to bridge between the linear guides 41 and brackets 52 erected from both the left and right sides of the main body plate 51 in the same manner as the rear base 42. is doing. A hook 54 is provided at the front end portion of the main body plate 51 so as to be engageable with the front end portion of the turntable 33, and restricts the movement of the elevating slide mechanism 11 </ b> C relative to the turntable 33. The driving mechanism includes a ball screw mechanism disposed between the turntable 33 and the rear base 42, and a motor that transmits a driving force to the ball screw mechanism, and the rear base 42 is moved in the seat longitudinal direction by the driving force of the motor. Move to.

The link mechanism 44 connects the rear base 42 and the front base 43 on both the left and right sides, and is constituted by a so-called parallel link mechanism including a lower arm 61 and an upper arm 62, respectively.
The lower arm 61 is a flat plate-like member extending with a constant width along the front-rear direction of the seat, and the rear end side is swingably supported by the bracket 47 of the rear base 42 via the pin 63, while the front end side is the front base 43. The bracket 52 is supported through a pin 64 so as to be swingable. Of the upper surface of the lower arm 61, the rear side and the front side are horizontal regions 61a and 61b extending in the horizontal direction, and the front-rear direction central portion is an inclined region 61c inclined downward from the rear side toward the front side. . Further, a vertical wall portion 65 standing upward is formed at the rear end portion of the lower arm 61, and a concave portion 66 opened forward is formed in the vertical wall portion 65.

  The upper arm 62 is a flat plate-like member that extends with a constant width along the front-rear direction, like the lower arm 61. Specifically, the upper arm 62 is supported at the rear end side of the bracket 47 of the rear base 42 so as to be swingable via a pin 67 at the front side of the lower arm 61, while the front end side of the upper arm 62 is supported by the bracket 52 of the front base 43. Further, it is supported on the front side via a pin 68 so as to be swingable. Of the lower surface of the upper arm 62, the rear side is an arc region 62a that bulges upward, and the front side is a horizontal region 62b that extends along the horizontal direction. The horizontal region 62 b of the lower arm 61 described above is supported by a guide roller 53 that is rotatably supported by the front end portion of the turntable 33.

  The urging slide mechanism 11D moves the seat body 2 with respect to the lifting slide mechanism 11C along the front-rear direction of the seat, and guide mechanism 71 for guiding the seat body 2 and the seat body 2 with respect to the lifting slide mechanism 11C. And a drive mechanism (not shown) that moves in the forward / backward direction (the front-rear direction of the seat).

  The guide mechanism 71 is disposed on the left and right sides of the above-described seat cushion 4A and a pair of seat frames 73 that directly support the seat cushion 4A, and a pair of seat frames 73 that are installed on the lower surface of each seat frame 73 and extend along the seat front-rear direction. A linear guide 74 and a slider 75 which is installed on the front base 43 of the above-described lifting slide mechanism 11C and supports the linear guide 74 so as to be slidable along the seat front-rear direction, and are rotatably supported between the seat frames 73. And a guide roller 76.

  The guide roller 76 is provided at the rear end of the seat frame 73 and is supported on the upper surface of the lower arm 61 so as to be able to roll. The guide roller 76 is accommodated in the recess 66 of the lower arm 61 at an initial position. The drive mechanism (not shown) includes, for example, a ball screw mechanism disposed between the elevating slide mechanism 11C and the seat frame 73, and a motor that transmits the drive force to the ball screw mechanism. The seat frame 73 (linear guide 74) is moved along the seat front-rear direction.

(Lock mechanism)
FIG. 4 is a side view of the lift-up seat 10 as viewed from the other side (vehicle interior side) in the left-right direction. Here, as shown in FIGS. The support plate 24 and the seat frame 73 of the outer slide mechanism 11D are configured to be latched, and are for restricting the movement of the seat body 2 in the front-rear direction with respect to the vehicle body floor 21 in the vehicle interior. Specifically, the lock mechanism 12 is installed at the rear end portion of the seat frame 73 on one side (vehicle interior side) of the striker 81 installed on the rear end side of the support plate 24 and each seat frame 73. And a drive unit (not shown) that switches between a locked state and a unlocked state by the lock unit main body 82.

The striker 81 includes a base portion 83 that extends outward from the rear end portion of the support plate 24 in the left-right direction. In the base portion 83, a pair of stays 84 are erected in parallel upward at positions facing each other in the left-right direction, and each stay 84 is provided with a bar 85 that bridges between the stays 84.
On the other hand, the lock portion main body 82 includes a lock base 86 provided at the rear end portion of one seat frame 73, a hook 88 that is rotatably supported by the lock base 86 via a pin 87, and a lock base 86. And an installed limit switch (detection sensor) 89.

  The hook 88 is formed in a V-shape in a side view extending in a bifurcated direction in the vertical direction as it goes rearward from the center of rotation, and the lower end of the hook 88 constitutes a locking portion 91 that can be locked to the bar 85 of the striker 81 described above. The upper end side constitutes a detection unit 92 that can be brought into contact with and separated from the limit switch 89 described above.

  The detection unit 92 contacts the limit switch 89 in a locked state in which the locking unit 91 is locked to the bar 85, and is separated from the limit switch 89 in a unlocked state in which the locking unit 91 is released from the bar 85. Is formed. The drive means includes a lock actuator (not shown) and is configured to rotate the hook 88 around the pin 87 between the locked state and the unlocked state. The hook 88 is biased toward the locked state by a biasing means (not shown).

(ECU)
FIG. 5 is a block diagram of the ECU 95.
As shown in FIG. 5, the lift-up seat 10 according to the present embodiment receives an operation signal from an operation switch (not shown), and reclines the drive mechanisms 25 and 35 of the moving mechanism 11 and the seat body 2 described above. An ECU 95 that comprehensively controls the operation of the mechanism is provided.
The ECU 95 determines whether or not the lock mechanism 12 is in the locked state based on the detection result by the limit switch 89 described above, and whether or not there is an occupant on the seat body 2 (the occupant is An occupant detection device 97 that detects whether or not the user is seated, and a drive control unit 98 that controls the drive of the lift-up seat 10 based on the detection results of the lock state detection unit 96 and the occupant detection device 97. ing.

(How to operate the lift-up seat)
Next, the operation method of the lift-up seat 10 will be described. The lift-up seat 10 according to the present embodiment is locked when the seat body 2 is moved between the initial position and the boarding / alighting position to allow passengers to get on and off, and the seat body 2 is in the initial position. And a seating prohibiting mode for prohibiting the seating of an occupant in a so-called unlocked state in which the released state is maintained.

(Boarding mode)
First, a case where an occupant seated on the seat body 2 gets off and changes to a wheelchair in the getting-on / off mode will be described.
When an operation switch (not shown) is turned on, the drive control unit first drives the lock actuator of the lock mechanism 12 to release the lock state of the lock mechanism 12. Specifically, when the lock actuator is driven, the hook 88 is rotated around the pin 87 so that the lock between the locking portion 91 and the bar 85 is released.

  Next, as shown in FIGS. 2A and 3, the motor 32 of the front / rear slide mechanism 11 </ b> A is rotated forward to move the support plate 24 forward, and the motor 38 of the rotation mechanism 11 </ b> B is rotated forward. The sheet body 2 is rotated from the initial position toward the rotation position. Thereby, the seat body 2 rotates toward the door opening 1 while moving forward of the vehicle.

  Then, as shown in FIGS. 2B and 3, after the seat body 2 is turned to the rotation position, the drive control unit moves the lifting slide mechanism 11 </ b> C by rotating the motor of the lifting slide mechanism 11 </ b> C forward. Specifically, when the motor is driven, the rear base 42 moves on the linear guide 41 toward the front of the seat, so that the hook 54 is released and the engagement between the front base 43 and the turntable 33 is released, and the link mechanism. 44 moves on the guide roller 53 toward the front of the sheet.

  In the link mechanism 44, the horizontal region 62 b of the lower surface of the upper arm 62 moves on the guide roller 53 toward the front of the sheet, so that the sheet main body 2 moves toward the front of the sheet. Thereafter, in the link mechanism 44, when the horizontal region 62 b reaches the guide roller 53 in the lower surface of the upper arm 62, the arc region 62 a moves on the guide roller 53. Then, the upper arm 62 swings around the pins 67 and 68, and the lower arm 61 swings around the pins 63 and 64 following the swing of the upper arm 62. As a result, the movement of the rear base 42 toward the front of the seat is converted into the movement of the front base 43 downward. As shown in FIGS. It will move forward to approach.

  Further, the drive mechanism of the outer slide mechanism 11D is driven in conjunction with the lift slide mechanism 11C to move the outer slide mechanism 11D toward the front of the seat. Specifically, when the motor of the drive mechanism is driven, the linear guide 74 installed on the seat frame 73 moves on the slider 75 toward the front of the seat, and the guide roller 76 of the seat frame 73 comes off from the recess 66, and the lower arm 61 moves on the rear horizontal region 61a. Thereafter, as the seat frame 73 moves, the guide roller 76 moves on the inclined region 61c and the front horizontal region 61b, so that the seat body 2 moves toward the front of the seat. As a result, the seat body 2 reaches the boarding / alighting position where the seat body 2 has advanced to a sufficiently low position outside the vehicle.

  And the passenger | crew who moved out of the vehicle seated on the seat body 2 can transfer to a wheelchair or the like at a sufficiently low ground level. On the contrary, when the occupant sits on the seat body 2 from the outside of the vehicle and gets in, the occupant changes from the wheelchair or the like to the seat body 2 and then turns on the operation switch to reverse the above operation. By performing the reverse operation in order, the sheet body 2 is returned to the initial position.

(Non-sitting mode)
Next, a seating prohibition mode that prompts a passenger to prohibit seating when an abnormality occurs in the lock mechanism 12 and the above-described unlocked state is achieved will be described. FIG. 6 is a flowchart showing processing by the ECU 95 in the seating prohibition mode, and FIG. 7 is a side view of the liftup seat for explaining the operation of the liftup seat 10 in the seating prohibition mode. In addition, the code | symbol 100 in FIG. 7 has shown the front seat (passenger seat) of the vehicle.
First, in the seating prohibition mode of the present embodiment, in the above-described boarding / alighting mode, after the seat body 2 returns from the boarding / alighting position to the initial position, the processing is started after a predetermined time has elapsed.

First, as shown in FIGS. 6 and 7A, after the seat body 2 returns from the boarding / alighting position to the initial position in step S1, the lock state detector 96 detects the lock mechanism based on the detection result of the limit switch 89. It is determined whether 12 is locked.
If the determination result in step S1 is “YES” (in the locked state), it is determined that the lock mechanism 12 is operating normally, and this flow is terminated. In this case, normal driving is possible thereafter.

  On the other hand, if the determination result in step S1 is “NO” (if the lock is released even after a predetermined time has elapsed), it is determined that some abnormality has occurred in the lock mechanism 12 and the lock mechanism 12 is in an unlocked state. The process proceeds to step S2.

In step S <b> 2, it is determined whether an occupant is seated on the seat body 2 based on the detection result of the occupant detection device 97.
If the detection result in step S2 is “YES” (when an occupant is seated), the process proceeds to step S3.

  In step S3, the drive control unit 98 operates only the front / rear slide mechanism 11A among the front / rear slide mechanism 11A and the outer slide mechanism 11D. Specifically, the seat body 2 is moved forward by rotating the motor 32 of the front / rear slide mechanism 11A in the forward direction and moving the support plate 24 toward the front of the vehicle. This flow is completed by the above.

  On the other hand, if the detection result in step S2 is “NO” (when the passenger is not seated), the process proceeds to step S4.

  In step S4, the drive control unit 98 operates both the front / rear slide mechanism 11A and the outer slide mechanism 11D. Specifically, as shown in FIG. 7B, the motor 32 of the front / rear slide mechanism 11A is rotated forward to move the support plate 24 toward the front of the vehicle (arrow Y1), and the outer slide mechanism 11D is driven. By driving the mechanism and moving the seat frame 73 forward relative to the lifting slide mechanism 11C (arrow Y2), the seat body 2 is moved forward. Further, in synchronization with the front / rear slide mechanism 11A and the outer slide mechanism 11D, the drive control unit 98 drives the reclining mechanism of the seat body 2 to tilt the seat back 4B forward (arrow Y3). This flow is completed by the above.

  Thus, in the present embodiment, when the seat body 2 is in an unlocked state, at least one of the front / rear slide mechanism 11A and the outer slide mechanism 11D is driven to advance the seat body 2 forward. Thus, the space at the foot of the seat main body 2 (the space between the seat main body 2 and the passenger seat 100) can be reduced to make it difficult for the occupant to sit. Thereby, it can be made to make a passenger | crew recognize reliably by the visual sense or a bodily sensation that the seat main body 2 is an unlocked state. In this case, the configuration of the lift-up seat 10 can be used to urge the occupant to prohibit seating, so that an increase in device cost can be suppressed.

  In particular, when the seat body 2 is unlocked and the occupant is not seated, the foot space of the seat body 2 can be reduced by operating both the front / rear slide mechanism 11A and the outer slide mechanism 11D. It can be reduced to a point where the foot does not fit Thereby, it can be made easier for the occupant to recognize that the seat body 2 is in the unlocked state. In this case, by further tilting the seat back 4B forward in synchronization with the front / rear slide mechanism 11A and the outer slide mechanism 11D, the occupant can be surely recognized that the seat body 2 is in the unlocked state.

  Further, in the present embodiment, the driving of the front / rear slide mechanism 11A and the outer slide mechanism 11D can be controlled according to the presence or absence of the occupant's seating. In this case, when it is detected that the occupant is seated, it is difficult to seat the occupant while ensuring a space for the occupant's feet to fit in the foot space of the seat body 2 by operating only the front / rear slide mechanism 11A. Can be made. Therefore, it is possible to make the occupant seated on the seat body 2 recognize that it is in an unlocked state.

The technical scope of the present invention is not limited to the above-described embodiments, and includes those in which various modifications are made to the above-described embodiments without departing from the spirit of the present invention. In other words, the configuration described in the above-described embodiment is merely an example, and can be changed as appropriate.
For example, in the above-described embodiment, the case where the lift-up seat 10 of the present invention is employed on the rear seat side has been described. However, the present invention is not limited to this, and can be employed for a front row seat (passenger seat or driver seat). is there.

Further, in the above-described embodiment, the configuration for driving both the front / rear slide mechanism 11A and the outer slide mechanism 11D in step S4 has been described. However, the present invention is not limited to this, and the front / rear slide mechanism 11A and the outer slide mechanism 11D Any one of them may be driven.
In the above-described embodiment, the case where only the front / rear slide mechanism 11A is driven in step S3 has been described. However, the present invention is not limited to this, and only the outer slide mechanism 11D may be driven. In step S3, it may be controlled not to drive both the front / rear slide mechanism 11A and the outer slide mechanism 11D.
Moreover, the drive amount (slide amount) of each slide mechanism 11A, 11D etc. can be adjusted suitably.

In addition, the lock mechanism 12 of the above-described embodiment is configured to switch between the locked state and the unlocked state by rotating the hook 88, but is not limited thereto.
Furthermore, although embodiment mentioned above demonstrated the case where the lift up seat 10 of this invention was mounted in a welfare vehicle, it can mount not only in this but in a general vehicle.

DESCRIPTION OF SYMBOLS 1 ... Door opening part (opening part) 10 ... Lift up seat 11 ... Moving mechanism 12 ... Locking mechanism 21 ... Vehicle body floor 11A ... Front-rear slide mechanism (1st slide mechanism) 11B ... Rotation mechanism 11D ... Outer slide mechanism (2nd 89 ... limit switch (detection sensor) 25 ... drive mechanism 97 ... occupant detection device

Claims (3)

A moving mechanism that moves the seat body installed on the vehicle body floor to the inside and outside of the passenger compartment through an opening provided on the side of the vehicle,
The moving mechanism is
A first slide mechanism for moving the seat body along the vehicle longitudinal direction with respect to the vehicle body floor;
A rotation mechanism that moves along the first slide mechanism and horizontally rotates between a first position where the seat body faces the front of the vehicle and a second position which faces the opening;
A vehicle lift-up seat having a second slide mechanism that moves the seat body along the seat longitudinal direction of the seat body with respect to the rotation mechanism;
A lock mechanism for fixing the seat body to the first position in a vehicle interior;
A detection sensor for detecting a lock state of the lock mechanism;
When the detection sensor detects that the lock mechanism is in an unlocked state, at least one of the first slide mechanism and the second slide mechanism is driven to move the seat body to the vehicle. A vehicle lift-up seat comprising a drive mechanism that moves forward. An occupant detection device that detects whether an occupant is present on the seat body;
2. The lift-up seat for a vehicle according to claim 1, wherein the drive mechanism drives the first slide mechanism and the second slide mechanism based on a detection result by the occupant detection device.   When the occupant detection device detects that the occupant is present on the seat body, the drive mechanism drives only one of the first slide mechanism and the second slide mechanism. The lift-up seat for vehicles according to claim 2 characterized by things.

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