JPS61163033A - Rotary seat for car - Google Patents

Abstract

PURPOSE:To easily get on and off a driver seat by providing a driving means shifting the seat via signals of sensors detecting the presence of driver's feet on a step and a sensor detecting the opening action of an opening/closing member. CONSTITUTION:Foot sensors 151 to detect whether feet are placed there are fitted on the step 150 of a rotary seat 100, and a door switch 400 to detect the opening/closing of a car boor 300 is fitted to it. A signal from the door switch 400 confirming that a door is opened when getting on and off and signals from foot sensors 151 confirming that a driver places his feet on the step are fed to a control mechanism, a drive motor is driven, and the rotary seat 100 starts to rotate. Accordingly, the driver can get on and off the car very easily without shifting the seat simultaneously with its rotation.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a rotating seat for a vehicle.

[Conventional technology]

Conventionally, an example of this type of vehicle seat is that each passenger sets the seat in the optimal position for him/her, writes the position information on a magnetic card or a storage device installed in the vehicle, and then reads the seat when getting into the vehicle. By reading that position information, the sheet can be reset to the optimal position. The above-mentioned vehicle seat is set at the optimum position by moving the seat body back and forth, but rotary seats that rotate the seat toward the passenger side have been disclosed as further improved vehicle seats (for example, Japanese Patent Publication No. 57-229
Publication No. 23, [Rotating Device for Rotating Vehicle Seat] [Problem to be Solved by the Invention] In the former vehicle seat mentioned above, before the seat is set in the optimum position, the seat is moved to the extreme forward position. If the vehicle seat is located at the top of the vehicle, it is difficult to get on the vehicle for the first time.On the other hand, with the latter type of rotating vehicle seat, only the seat rotates, so when getting on and off the passenger, the occupant has to follow the rotation of the seat. There is a problem in that it has to be moved. In addition, because door switches and other sensors are used as sensors to convey the passenger's intention to get on and off to the control mechanism, it is not possible to accurately convey the passenger's intention to get on and off. There were problems such as the seat rotating.

In view of the above-mentioned problems, the present invention provides a step at the bottom of the front end of the seat that rotates with the seat, and further provides a switch that is activated by placing both feet of the occupant on the step. The purpose is to use the sensor as a sensor to convey the passenger's intentions, and to use this sensor to control the rotation of the seat to enable the seat to rotate according to the passenger's will.

[Means for solving problems]

In the present invention, there is provided an opening/closing member provided on a side of the vehicle for boarding/exiting the passenger compartment, and an opening/closing member disposed adjacent to the opening/closing member in the passenger compartment, and with a distal end reversibly directed in the direction of the opening/closing member. a seat rotatably provided; a step provided at the tip of the seat and rotatable integrally with the seat; a first detection means for detecting the presence or absence of the occupant's feet on the step; a second detection means for detecting a release operation of the opening/closing member; and a driving means for moving the front end of the seat in a direction toward the opening/closing member in response to detection signals from the first and second detection means. A rotary seat for a vehicle is provided.

〔Example〕

Below is the drawing? Q will explain in detail the rotary seat for a vehicle according to the present invention.

FIG. 1 is an overall configuration diagram including a rotating seat mounted in a vehicle and its control mechanism. 100 is a rotating seat, 20
0 is a seating sensor that detects whether the occupant is seated (rotating seat)
It is incorporated inside 100.

400 is a door switch that detects opening/closing of the vehicle door 300, 500 is an ignition switch, 600 is a reset switch for returning the rotating seat to the front direction, 700
800 is a control mechanism that receives signals from each sensor and controls the drive mechanism of the rotary seat 100 and the alarm buzzer 700. Note that 100b indicates the state of the sheet after rotation.

Figure 2 is an overall view of the rotary seat, Figure 3 is a side view, and Figure 4 is a side view of the rotary seat.
The figure shows a bottom view, and FIG. 5 shows a cross section taken along line I-1 in FIG. 4.

The rotary seat 100 shown in FIG. 1 consists of an upper frame 110, a lower frame 111, and a rotary table 120, as shown in FIGS. 2-5. As shown in FIG. 5, the rotary table 120 has a structure in which an upper plate 121 and a lower plate 122 are rotatably joined across a sliding surface 123 lubricated with grease or the like. 124 is a rotation center axis fixed to the upper plate 121, and the lower plate 1
22, it is rotatable. In addition, a retainer 1 is provided to prevent the upper plate 121 and lower plate 122 from separating.
25 is attached to the rotation center shaft 124. The upper frame 110 is attached to the upper plate 121, and the lower frame 1
11 are respectively fixed to the lower plate 122, the upper frame 110 and the lower frame 111 are rotatable about the rotation center axis 124.

The driving spur gear 130 is fixed to the rotation center shaft 124. Further, the driving force of the driving motor 140 attached to the lower frame 111 is transmitted to the pinion 142 after being decelerated by the worm 141 and the worm wheel 141a'''C. By meshing the pinion 142 with the driving spur gear 130, the driving force is transmitted to the pinion 142. , the driving force is transmitted to the rotation center shaft 124. Note that the seat at rest is locked by the self-locking of the worm 141.

A step 150 for placing the foot during rotation is fixed to the upper frame 110. A foot sensor 151 is attached to the step 150. The foot sensor 151 is for detecting whether a foot is placed on the step 150, and its internal structure is as shown in FIG. The foot sensor 151 consists of a main body 152 made of a material that is easily elastically deformed, such as synthetic rubber, and contacts 153 and 154 provided inside the main body 152. When the foot sensor 151 is stepped on by an occupant's foot, the main body 152 is elastically deformed, and the contacts 153 and 154 come into contact. As a result, a signal indicating that the occupant has placed his or her foot on step 150 is sent to the control mechanism 700.
sent to.

Further, in this embodiment, the foot sensor 15 is used in step 150.
1 are provided, and their contacts are connected in series.

Therefore, in this embodiment, a signal is not sent to the control 11 mechanism 700 unless both feet are placed on the two foot sensors 151.

Front limit switch 160 and outside limit switch 161 are fixed to lower frame 111. A loft 162 for operating the front limit switch 160 and the outside limit switch 161 is attached to the up frame 110, and the tip of the loft 162 passes through a groove 163' cut in the lower frame 111 and projects to the lower surface of the lower frame 111. ing. This protruding part is the front limit switch 160 and the outer limit switch 16.
It functions to activate 1.

The front and rear slide rails 170 are fixed to the lower frame, and are fixed to the vehicle body frame (not shown) through attachment holes 171. The lever 172 is a lever for releasing the slide lock.

FIG. 7 is a functional block diagram of the control mechanism 800.

810 receives a signal from the ignition switch 500 and determines whether it is ON or OFF. 811 determines whether the door 300 is open or closed based on the signal from the door switch 400.

The following functions 82 are performed by signals from 810 and 811.
0 is activated. 821 determines whether the user is seated based on the signal from the seat sensor 200. Step 822 determines the presence or absence of a foot on step 150 based on the signal from foot sensor 151 . 823 is the signal of the front limit switch 160;
4 receives a signal from the outside limit switch 161 and determines the limit position of the rotary seat 100 in the front direction and the outside direction. 825 is the ON state of the reset switch 600
, determines OFF. At step 826, the current flowing through the seat rotation drive motor 140 is detected, and at step 827, it is determined whether or not the current is appropriate. 828 is 821 and 822
The alarm buzzer 700 is controlled by the signal of 829.
The seat rotation driving motor 140 is controlled by receiving the signals 21, 822, 823, 824, 825, and 827.

Regarding the operation of the control mechanism shown in FIG. 7, FIGS.
This will be explained along the flowchart in the figure.

First, in step 5101, it is determined whether the door 300 is open or closed (the door switch 400 is OFF when the door is open).Once it is confirmed that the door is open, in 5102, it is detected whether the ignition switch 500 is ON or OFF. If one end of the door 300 is opened and the ignition switch 50 is
If the door 300 is closed again before reaching 0, the process goes from 5IOI to 5103 and the operation ends. In step 5104, it is confirmed whether or not the vehicle is seated (the seat sensor is ON when the vehicle is seated). If the vehicle is not in the seated state, then the boarding flowchart (FIG. 9) is executed, and if the vehicle is in the seated state, the dismounting flowchart (FIG. 10) is executed.

FIG. 9 is a flowchart for riding. First, 5201
The drive motor 140 is driven, and the rotary seat 100 begins to rotate toward the outside of the vehicle body. 5202 detects the current Em flowing through the drive motor 140. 5203 and this E
Compare m with a predetermined value Eo, and if Em exceeds Eo, it is determined that an extra load has been applied to the drive motor 140 due to an accident such as a passenger being caught, and an emergency stop is performed. The flowchart (Figure 1O) is executed. If Em is normal, the outer limit switch (
0N when the seat is fully rotated to the outside) 161
Check whether it is ON or OFF, and if it is OFF, 5201
Return to , and further rotate the rotary seat 100. When the outer limit switch is turned on, the seat rotation is stopped at 5205. At step 5206, a timer 1 for limiting the time until sitting is started, and at step 5207, the user is seated. If the seat is not seated within the time set by timer l, 3208
The process flows more toward the front direction rotation flowchart (FIG. 12). If you sit down within the timer setting time, 520
Timer 2 that limits the time until you put your foot on the step at 9
After starting, wait for the foot to be placed at 5210 (the foot sensor 151 is turned ON when the foot is placed). If you do not put your foot down within the set time, the process moves from 5211 to 5212, the warning buzzer 700 sounds, and you wait for your foot to be put down. If you stop riding and get off, the seating sensor 200 of 5213 will sound. Since the alarm buzzer 700 is turned off, the alarm buzzer 700 is stopped at 5215, and then the flowchart for forward rotation (FIG. 12) is executed. 52 when you put your foot on the step
10 to 5214, and after stopping the alarm buzzer 700, the flowchart for front direction rotation (FIG. 12) is executed.

FIG. 10 is a flowchart for getting off the vehicle. At step 5301, a timer 3 that limits the time until the foot is placed on the step is started, and at steps 5302 and 5303, the step is waited for. If the foot is not placed even after the timer 3 is turned off, the alarm buzzer is turned on in 5304, and further, in 5305, the foot is waited for. If you stop getting off the train and close the door 300, the process will flow from 5306 to 5307, and the alarm buzzer will sound.
700 and all operations stop at 3308. 53
02, when it is confirmed in 5305 that the foot has been placed in step 150, step 3309 is executed and rotation outward is started. 5310 detects the motor current Em, and 531
In step 1, Em is compared with a predetermined value EO. If Em is larger than Eo, it is determined that an accident such as an occupant being caught has occurred, and the emergency stop flowchart (Figure 11) is executed. . 5 if Em is normal
At 312, the foot sensor 151 is turned on and off.
Determine. If the foot sensor 151 is OFF, it is assumed that the occupant is about to get off at that position, and 53
14 to stop the rotation of the rotary seat 100.

If the foot sensor 151 is ON in 5312,
Rotation continues until the outer limit switch 161 is turned on at 5313. When the outer limit switch 161 is turned on, the seat rotation is stopped at 5314. Next, 531
At step 5, a timer 4 is started which determines the time until the alarm buzzer 700 for prompting the driver to get out of the vehicle sounds, and at step 3316, the seated state is determined. If the passenger has not alighted, turn on the reset switch 600 at 5317.
, OFF, and the state of timer 4 is determined in 3318. If the reset switch is pressed,
If timer 4 has stopped, it is determined that disembarkation has been canceled, and step 5319 is executed. 5319 determines whether the foot sensor 151 is ON or OFF, and if the foot sensor 151 is OFF, the alarm buzzer 700 is activated at 5320.
prompts the user to place their foot on step 150. If the foot sensor 151 turns ON, the alarm buzzer 7 will be activated at 5321.
After stopping 00, the flowchart for front direction rotation (first
Execute (Figure 2). Also, if the passenger gets off the vehicle, please call 531.
6 to 5322, and executes the flowchart for front direction rotation (FIG. 12).

FIG. 11 is a flowchart for emergency stop.

After stopping the seat rotation in 5401, the process waits for the reset switch 700 to be turned on in 5402. When the cause of the accident is removed and the reset switch 700 is pressed, the flowchart for moving in the front direction (FIG. 12) is executed.

FIG. 12 is a flowchart for moving in the front direction. 55
At 01, the seat starts rotating inward.

5502 detects the current Em of the drive motor 140, and
If m is larger than the set value Eo, the emergency stop flowchart (FIG. 11) is executed. If EIll is normal, the state of the seating sensor 200 is determined, and if an occupant is in the seat, step 5505 is executed, and if the occupant is not in the seat (or if the occupant gets off the seat while the seat is in operation), step S508 is executed. At 5505, it is determined whether the foot sensor 151 is ON or OFF, and if it is OFF, the rotation of the rotary seat 100 is stopped and the alarm buzzer 700 is sounded. If you get off the seat,
Or if you put your foot on step 150, 3508
Stop the alarm buzzer with 5509, turn on the front limit switch 160 (ON at the front limit position), O
FF is determined, and if it is OFF, the process returns to 5501 and the rotary seat 100 is rotated inward. When the front limit switch is turned on, the seat rotation is stopped at 5510 and all operations are completed.

Further, the drive mechanism for the rotary seat is not limited to the above embodiment, and a hydraulic, pneumatic, or other drive mechanism may be used. Further, a locking mechanism in the rotational direction may be provided separately from the drive mechanism. In the embodiment described above, a drive mechanism is provided only in the rotational direction, but it may be combined with a drive mechanism for sliding back and forth, moving up and down the seat, etc. In this case, the seat may be rotated after sliding the seat to a position suitable for rotation. Further, the foot sensor is not limited to the above embodiment, and other sensors such as pressure sensitive rubber may be used. All you need to know is that both feet are placed on the step. In the embodiment described above, a limit switch is used to detect the rotational position of the seat, but a potentiometer, a pulse generator, etc. may also be used.

〔Effect of the invention〕

According to the present invention, a passenger can get on and off the vehicle without having to move according to the rotation of the seat, making it very easy to get on and off the vehicle. Furthermore, since the sensor is activated by placing one's feet on the step, the intention to get on or off the seat is accurately transmitted to the control mechanism, and problems such as the seat rotating even when there is no intention to get off the seat do not occur.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram including a rotary seat for a vehicle according to the present invention and its control mechanism, Fig. 2 is a perspective view of the rotary seat for a vehicle in Fig. 1, and Fig. 3 is a diagram of the rotary seat for a vehicle in Fig. 2. 4 is a bottom view of the rotary seat for a vehicle in FIG. 2, FIG. 5 is a sectional view taken along line I-I in FIG. 4, FIG. 6 is a sectional view of the foot sensor, and FIG. 7 is a sectional view of the foot sensor. Detailed functional block diagram of the control mechanism shown in FIG.
8 to 12 are operation flowcharts of the control mechanism shown in FIG. 7. (Explanation of symbols) 100... Rotating seat, 120... Rotating table, 124... Rotation center shaft, 130... Drive spur gear, 140... Drive motor, 150... Step , 151... Foot sensor, 160... Limit switch, 170... Front and rear slide rail, 200... Seating sensor, 300... Vehicle door, 400... Door switch, 500... Ignition Switch, 600... Reset switch, 700... Alarm buzzer, 800... Control mechanism. Figure 1 Figure 2 Figure 4 Figure 5 Figure 60 1-2 Figure 8 Figure 11

Claims (1)

[Scope of Claims] 1. An opening/closing member provided on the side of the vehicle for getting in and out of the vehicle interior, and an opening/closing member disposed within the vehicle interior adjacent to the opening/closing member, the distal end being reversible in the direction of the opening/closing member. A seat that is rotatable toward a target, a step that is provided at the tip of the seat and that can rotate integrally with the seat, and a first detection that detects the presence or absence of the occupant's feet on the step. means, second detection means for detecting a release operation of the opening/closing member, and moving the front end of the seat in a direction toward the opening/closing member in response to detection signals from the first and second detection means. A rotary seat for a vehicle, comprising a driving means. 2. Further comprising a mechanism for sliding the seat in the longitudinal direction, a driving means for sliding the seat, and a means for detecting a sliding position, and determining the optimum position for rotating the seat in response to a detection signal from the detecting means. 2. The rotary seat for a vehicle according to claim 1, wherein the seat is rotated after the seat has been slid to a certain extent.