JPH0741810B2 - Seats for rotating vehicles - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rotary vehicle seat that rotates to facilitate getting in and out of a vehicle.

[Prior Art] As the vehicle seat described above, the inventors have previously described (Japanese Patent Application No. 60-15
No. 3004), the seat cushion is rotatably supported on the floor, and a rod-shaped member is provided on the lower surface of the seat cushion. On the other hand, the floor has an arc-shaped elongated hole along the movement trajectory of the rod-shaped member. It has been proposed to provide an engaging member that can be rotationally moved by a driving means.

In such a vehicle seat, the tip end of the rod-shaped member is positioned in the elongated hole, and the end face of the elongated member abuts and engages with the rotation of the elongated hole to rotate the seat cushion inward and outward of the vehicle. Excuse me.

In the vehicle seat, as described above, the engaging hole with the rod-shaped member is an elongated hole. Therefore, when the elongated hole is placed at an appropriate position, the rod-shaped member moves within the elongated hole within the entire rotation range of the seat cushion. It is possible to move freely. Then, when the occupant gets on and off the seat, if the long hole is moved to the above-mentioned appropriate position, the seat cushion can freely rotate by the rotation of the occupant's waist to smoothly get on and off. When the door is opened or when the door is closed after getting off the vehicle, the end face of the rotationally moved long hole engages with the rod-shaped member, and the seat cushion automatically rotates inward and outward of the vehicle.

[Problems to be Solved by the Invention] Although the previously proposed vehicle seat has excellent performance as described above, there are still some points to be improved. That is, by using the elongated hole as the engaging hole, especially when the vehicle seat is rotated outward to welcome the occupant, the end surface of the vehicle seat comes into contact with the rod-shaped member due to the play of the elongated hole, so that the seat is actually seated. It takes time for the cushion to start turning,
There was a problem that you could not get on the train quickly.

The present invention solves such a problem, and when the passenger door is opened, the outward rotation of the seat cushion is immediately started,
It is an object of the present invention to provide a rotary vehicle seat that allows a smooth ride.

[Means for Solving Problems] To explain the first configuration of the present invention, the support shaft 1 erected on the vehicle floor F has a range in the front direction toward the inside of the vehicle and in the entrance / exit direction toward the outside of the vehicle. A seat cushion S is rotatably supported by the seat cushion S, and a rod-shaped member 2 is provided on the lower surface of the seat cushion S or on the vehicle floor F so as to be eccentric from the center of rotation of the seat cushion. It moves in and out of the vehicle due to movement. A pair of engaging surfaces 31a, 31b (FIG. 3) inside and outside the vehicle are provided on the vehicle floor F or on the lower surface of the seat cushion S, and these are opposed to each other with the rod-shaped member 2 sandwiched therebetween at an interval equal to or larger than the movement trajectory thereof. Then, it abuts and engages with the rod-shaped member 2 during the movement.

Further, driving means 4 and 6 for moving the engaging surfaces 31a and 31b forward and backward along the movement locus, a seating detecting means 51 for detecting seating of an occupant on the seat cushion S, and opening / closing of the door B1 are detected. Door opening / closing detection means 52 is provided.

The drive means 4 and 6 are set so as to move the engagement surface 31a inside the vehicle to the position where the rod-shaped member 2 is brought into contact with the vehicle when the passenger B1 is closed while the passenger is not seated.

Further, in the second configuration of the present invention, in addition to the above configuration, vehicle state detection means 531 and 532 for detecting the locked state of the entry / exit door or the operating state of the vehicle are provided, and the drive means 4 and 6 are provided.
When the occupant is not seated and the door is closed, the engagement surface 31a inside the vehicle is moved to the position where it abuts against the rod-shaped member 2 when the entry / exit door is unlocked or the vehicle is stopped. It is set so as to move the outer engaging surface 31b to a position where it comes into contact with the rod-shaped member 2.

[Operation and Effect] In the first configuration, when the pair of engaging surfaces 31a and 31b are moved in the forward and reverse directions by the driving means 4 and 6, the inner engaging surface 31a abuts on the rod member 2. When this is done, the seat cushion S automatically rotates toward the entrance / exit of the vehicle,
When the outer engagement surface 31b comes into contact with the rod-shaped member 2, the seat cushion S is automatically rotated in the front direction toward the inside of the vehicle.

The driving means 4 and 6 allow the engagement surface 31b on the inner side of the vehicle to contact the rod-shaped member 2 when the passenger is not seated and the door is closed.
Since the seat cushion S is unconditionally moved so as to come into contact with the seat cushion S, the seat cushion S can be immediately swung outward without wasting time when the passenger door is opened, and a smooth boarding can be achieved.

In the second configuration, when the occupant is not seated, the door is closed, and the door is unlocked or the vehicle is stopped, the engagement surface 31a on the inner side of the vehicle moves to a position where the rod-shaped member 2 abuts. The seat cushion S is swung outward immediately when the entry / exit door is opened, enabling a smooth boarding. Further, when the occupant is not seated, the door is closed, the door is locked, or the vehicle is running, the engagement surface 31b outside the vehicle is
Moves to a position where it abuts on the rod-shaped member 2. Therefore, when the present invention is applied to a passenger seat, the seat cushion does not rattle while the vehicle is traveling.

[Embodiment] In FIG. 1, a rotary seat is provided in each of a driver's seat and a passenger seat of a vehicle, and each seat cushion S,
S'is rotationally driven inward and outward of the vehicle by the control devices 6 and 6'as indicated by the chain line in the figure. The configurations of both seats and the control device are the same, and the driver seat will be described below.

A seat cushion S of a driver's seat is rotatably supported by a support shaft 1 provided perpendicularly to a vehicle floor F, and rotates between a vehicle front direction (upper side in the drawing) and an entrance / exit direction (chain line in the figure). ). On the lower surface of the seat cushion S, a rod-shaped member 2 is provided so as to project at a position eccentric from the center of rotation.
On the floor F side, an engagement member 3 having an engagement surface described later is arranged. The engaging member 3 is rotated by a motor 4, and the motor 4 is connected to the control device 6 by a cable 61.

The control device 6 includes a seating sensor 51 embedded in the seat cushion S, a door sensor 52 provided on the entry / exit door B1, an existing door lock switch 531 provided near the armrest inside the entry / exit door B1, and a door unlock switch 532. Etc. are connected.

The details of the rotation mechanism of the driver's seat are shown in FIGS. 2 and 3. 2 is a sectional view taken along the line II-II in FIG. 3, and FIG. 3 is a sectional view taken from above along the line III-III in FIG.

In the figure, 11 is a parallel rail provided on the vehicle floor F in the vehicle front-rear direction (left-right direction in the figure), and a base plate 12 is slidably mounted on these rails 11. Reference numeral 13 is a support plate for supporting the seat cushion S, and a support shaft 1 and a rod-shaped member 2 are integrally provided so as to project from the support shaft 1.
The seat cushion S is rotatably connected to the seat 12, and the seat cushion S is rotatable with respect to the base plate 12.

15 is a lower rail fixed to the base plate 12, 14 is a support plate 13
The lower rail 15 and the upper rail 14 are slidably engaged with each other by the upper rail fixed to the upper rail to prevent the seat cushion S from rising.

Reference numeral 16 is a lower stopper fixed to the base plate 12, and 17 is an upper stopper fixed to the support plate 13, which engages when the seat cushion S faces the front and restricts further rotation of the seat cushion S. .

An engaging member 3 is arranged above the base plate 12 in parallel therewith. The engagement member 3 is a fan-shaped plate body, and the center portion thereof is coupled to the support shaft 1 so as to be relatively rotatable. An arcuate elongated hole 31 centered on the support shaft 1 is formed on the plate surface of the engaging member 3, and the distal end portion of the rod member 2 is inserted into the elongated hole 31. A tooth profile 32 is formed on the outer peripheral surface of the engaging member 3, and a pinion 41 is meshed with the tooth profile 32. Pinion
The motor 41 provided on the lower surface of the base plate 12 can be rotated forward and backward.

With the rotation of the pinion 41, the engaging member 3 rotates around the support shaft 1, and the engaging surfaces 31a and 31b at both ends of the elongated hole 31 abut and engage with the rod-shaped member 2 to move it. . As a result, the seat cushion S automatically rotates in and out of the vehicle.

There are three limit switches 18, 1 on the top surface of the base plate 12.
9 and 20 are provided, and when the engaging member 3 is rotated to the inner end, the intermediate point and the outer end, the above limit switches are respectively provided.
18 to 20 works. For example, when the engaging member 3 moves to the intermediate point (state shown in the figure), the limit switch 19 is operated by the striker portion 33 protruding from the central portion of the engaging member 3, and in this state, the seat cushion S In the entire rotation range, the rod-shaped member 2 freely moves in the elongated hole 31 without contacting the engagement surfaces 31a and 31b, and the seat cushion S can be manually rotated.

FIG. 4 shows a hardware configuration of the control device 6. Device 6
Input interface 61, microcomputer 6
2. It consists of output interface 63.

Below, referring to FIG. 3 and FIG. 5 to FIG.
The control program shown in FIG. 11 will be described.

When the seat cushion S faces forward and the engaging member 3 is at the midpoint, as shown in FIG. 3, when the passenger door B1 is opened and the door sensor 52 is turned on in step 101 of FIG. 8, the following step 10
At 2 check the operation of the seating sensor 51. Seat sensor 5
When 1 is not operating, the process proceeds to step 201 in FIG. 9 to execute the boarding program, and when the seating sensor 51 is operating, proceeds to step 301 in FIG. 10 to execute the exit program.

In step 201, the motor 4 is rotated outward, and the engagement member 3 is rotated to the outer end where the limit switch 20 operates (steps 203 and 204). This is shown in FIG. 5, and the seat cushion S faces the entrance / exit direction. Immediately after that, motor 4
Starts inward rotation (step 205), and the engagement member 3 moves to an intermediate point where the limit switch 19 operates (steps 206 and 207). This is shown in FIG. In this state, since the rod-shaped member 2 can freely move inward along the elongated hole 31, if the seated occupant twists his / her waist, the seat cushion S pivots inwardly and the third Return to the original position of the figure. Below, the procedure proceeds to steps 305 and 306 in FIG. 10, and further proceeds to the standby program in FIG. 11 described later.

On the other hand, in steps 301, 303, and 304 of the exiting program, the engaging member 3 is moved to the intermediate point. This is not substantially executed when the program starts from the state shown in FIG. Thus, since the rod-shaped member 2 can freely move outward along the elongated hole 31, if the seated occupant twists his / her waist, the seat cushion S pivots outward.

In steps 305 and 306, when the entry / exit door B1 is closed or the occupant completes the exit, the process proceeds to step 401 of the styling program. If the boarding / alighting is stopped while the boarding / alighting programs are being executed and the boarding / alighting door B1 is closed, the system immediately shifts to the standby program (step
202, 208, 302).

In step 401 of the standby program, the motor 4 is internally rotated and the engaging member 3 is moved to the limit switch 18
Move it to the inner end (steps 402 and 40)
3). Along with this, the seat cushion S rotates inward and faces the front of the vehicle (FIG. 7). If the occupant is seated, proceed from step 404 to step 408 to enter / exit the door.
Confirm that B1 is closed and end. In this state,
The rod-shaped member 2 abuts and engages with the engagement surface 31b, and the seat cushion S is fixed at the inward turning end.

If the occupant is not seated in step 404, the motor 4 is rotated outward (step 405) and the engaging member 3 is rotated outward until the intermediate point where the limit switch 19 operates (step 406). , 407). This allows
It is the original position in FIG. In the original position, the engaging surface 31a of the long hole 31
Is engaged with the rod-shaped member 2, and in the boarding program (FIG. 9) after the door is opened and closed, the seat cushion S is immediately opened and closed with no play time accompanying the motor outside rotation in step 201. Rotate in the direction. Thus, it is possible to get on quickly.

Further, when the entry / exit door B1 is closed in step 101 of FIG. 8, the operations of the door lock and door unlock switches 531 and 532 are checked in steps 111 and 121, respectively.

If the door lock switch 531 is operating in step 111, the motor 4 is internally rotated to move the engaging member 3 to the inner end (steps 112 to 114). Step 121
If the door unlock switch 532 is operating in step (4), it is confirmed that the seating sensor is not operating (step 122), the motor is rotated outward, and the engaging member 3 is moved to an intermediate point (steps 123 to 125). .

By providing such a control step, particularly when the rotary seat is installed in the passenger seat, the engagement member 3 of the passenger seat is controlled by the door lock and door unlock switches 531 and 532 on the driver side. To do. Thus, when the door is locked, the seat cushion S is fixed to eliminate rattling of the running seat, while when the door is unlocked, the seat cushion S can be swung in the direction of the passenger entrance / exit immediately with the subsequent opening of the door. Put it in a standby state where possible.

Instead of the door lock and door unlock switches 531 and 532, a signal of an automatic door lock that detects the vehicle speed and locks the door can be used, and the vehicle travels not limited to the door lock, The stoppage may be detected and linked with this.

It goes without saying that the drive mechanism for the rotating seat may use hydraulic pressure or pneumatic pressure.

As the door sensor, a potentiometer, a pulse encoder, or a sensor that detects the opening and closing of the door using an ultrasonic wave or the like can be used.

The rotational position of the engaging member 3 can be detected by providing the engaging member 3 or the motor 4 with a pulse generator or potentiometer instead of the limit switch.

[Brief description of drawings]

FIG. 1 is a schematic plan view in which a rotary vehicle seat is provided in a driver's seat and a passenger seat, FIG. 2 is a partial sectional side view of the vehicle seat, and the sectional view is taken along line II-II in FIG. 3 is a partial cross-sectional plan view of the vehicle seat, and the cross-sectional view is III of FIG.
Along the line III, FIG. 4 is a block diagram of the control device, FIGS. 5 to 7 are plan views showing the operation of the vehicle seat, and FIGS. 8 to 11 are program flow charts. 1 ... Spindle 2 ... Rod-shaped member 3 ... Engaging members 31a, 31b ... Engaging surface 4 ... Motor (driving means) 51 ... Seating sensor (seating detecting means) 52 ... Door sensor (door open / close detection) 531 ... Door lock switch (vehicle state detection means) 532 ... Door unlock switch (vehicle state detection means) 6, 6 '... Control device (driving means) B1 ... Boarding door F ... Vehicle floor S , S '... Seat cushion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshikazu Ina 14 Iwatani, Shimohakaku-cho, Nishio-shi, Aichi Stock Company Japan Auto Parts Research Institute (72) Inventor Koji Imai 14-Iwatani, Shimohakaku-cho, Nishio-shi, Aichi Stock Association (56) References JP 61-163034 (JP, A) JP 61-36028 (JP, A)

Claims (2)

[Claims] 1. A seat cushion rotatably supported by a support shaft erected on a vehicle floor in a front direction inside the vehicle and an entrance direction outside the vehicle, and a lower surface of the seat cushion or the vehicle. A bar-shaped member that is installed on the floor eccentrically from the center of rotation of the seat cushion and that moves in and out of the vehicle as the seat cushion rotates. A pair of inner and outer engaging surfaces provided on the vehicle floor or on the lower surface of the seat cushion that abut and engage with the rod-shaped member, drive means for moving the engaging surfaces forward and backward along the movement locus, and a seat. A seating detection means for detecting seating of an occupant on the cushion and a door opening / closing detection means for detecting opening / closing of the entry / exit door are provided, and the drive means is provided when the occupant is not seated and when the entry / exit door is closed. Both inner rotary vehicle seat of the engagement surface is set as allowed to move to a position where it comes into contact with the rod member. 2. A seat cushion rotatably supported on a support shaft erected on the vehicle floor in the front direction inside the vehicle and the entrance direction outside the vehicle, and the lower surface of the seat cushion or the vehicle. A bar-shaped member that is installed on the floor eccentrically from the center of rotation of the seat cushion and that moves in and out of the vehicle as the seat cushion rotates. A pair of inner and outer engaging surfaces provided on the vehicle floor or on the lower surface of the seat cushion that abut and engage with the rod-shaped member, drive means for moving the engaging surfaces forward and backward along the movement locus, and a seat. Seating detection means for detecting seating of an occupant on the cushion, door opening / closing detection means for detecting opening / closing of the entry / exit door, and vehicle for detecting a locked state of the entry / exit door or a driving state of the vehicle And a state detecting means for moving the driving means to a position where the engaging surface inside the vehicle abuts against the rod-shaped member when the passenger is not seated and the door is closed, when the door is unlocked or when the vehicle is stopped. In other words, the rotary vehicle seat set so that the engagement surface outside the vehicle is moved to a position where it abuts against the rod-shaped member when the door is locked or when the vehicle is traveling.