JP2004196174A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device suitable for increasing a cabin space at the rear of an forwardmost seat. <P>SOLUTION: A one-box car 1 can change a seat arrangement into a four-row seat mode having four-row seats 2 to 5 to allow for a large number of occupants. The four-row seat mode takes a relatively high high-position in which the forward most seat 2 is moved to front upper side. In this high-position mode, the seat arrangement is substantially changed into a three-row seat mode by folding a second row seat 3 and storing it just beneath the forwardmost seat 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle seat device.
[0002]
[Prior art]
The front row seats of the vehicle include the driver's seat, but various measures have been taken to reduce the volume occupied by the seats behind the front row seats, thereby expanding the cabin space behind the front row seats. Proposed.
[0003]
[Patent Document 1]
JP-A-10-264695
This publication proposes that the seat cushion of the second-row seat be accommodated below the seat cushion of the front-row seat. That is, in this publication, the seat cushion of the second row seat is displaced downward, the second row seat is moved forward in this state, and the seat cushion of the second row seat and the seat cushion of the front row seat are combined with the floor panel. It has been proposed to accommodate in the gap between.
[0005]
[Problems to be solved by the invention]
It is an object of the present invention to provide a seat device suitable for enlarging a passenger compartment space behind a front row seat.
[0006]
It is a further object of the present invention to provide a seat device capable of carrying a large number of occupants on a vehicle having a relatively compact vehicle front-rear length.
[0007]
It is a further object of the present invention to provide a seat apparatus suitable for selectively using a multi-person riding mode and a small-person riding mode by changing the number of seat rows of a plurality of rows mounted on a vehicle.
[0008]
[Means for Solving the Problems]
According to the present invention, such a technical problem
A seat device for a vehicle including a front row seat provided on a floor panel of the vehicle, and a second row seat located behind the front row seat,
A front row seat supporting unit that supports the front row sheet so that the front row sheet can be displaced in the vertical direction and can take a high position and a low position,
A second-row sheet supporting means for supporting the second-row sheet so that the second-row sheet can be accommodated below the front-row sheet when the front-row sheet is in the high position; This is achieved by providing a vehicle seat device.
[0009]
That is, according to the present invention, the front row seat can take a high position and a low position, and the gap between the seat cushion of the front row seat and the floor panel is enlarged in the high position. Since the second-row seats are accommodated in the enlarged gap, for example, by storing the second-row seats in a folded state, it is possible to enlarge the vehicle interior space behind the front-row seats. .
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
In a preferred embodiment of the present invention, the front row sheet support means displaces the front row sheet upward and forward when the front row sheet takes the high position, and displaces the front row sheet in the low position when the front row sheet takes the low position. The front row seat is displaced downward and rearward.
[0011]
When the front row seat takes the high position, the front row seat moves forward and upward, so that the sitting posture of the driver is a state in which the knee is bent. On the other hand, when the front row seat is moved rearward and downward to the low position, the seating posture of the driver is such that the knees are relatively extended, but the second row seat is positioned below the front row seat. When the front row seats are accommodated in the vehicle, the front row seats are at the high position moved forward and upward, so that the space in the vehicle interior behind the front row seats can be further expanded.
[0012]
In a preferred embodiment of the present invention, the second-row seat further includes a seat back and a seat cushion, and both the seat back and the seat cushion of the second-row seat are accommodated below the front-row seat. Most preferably, the second row seat is folded and stored under the front row seat until the seat back of the second row seat is overlaid on the seat cushion.
[0013]
In addition, the vehicle according to the preferred embodiment of the present invention has a limited length of the vehicle body and has four rows of seats so that a large number of passengers can ride on the vehicle. By doing so, the vehicle changes to a three-row seat vehicle.
[0014]
【Example】
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0015]
Prior to the detailed description of the embodiment, first, an outline of the embodiment will be described with reference to FIGS. The illustrated automobile 1 is a so-called one-box car. This one-box car 1 has a three-row seat mode having three rows of seats 2 to 4 as shown in FIG. 1 and a four-row seat mode having four rows of seats 2 to 5 as shown in FIG. Can be changed to column sheet mode. The seats 2 to 4 or 2 to 5 may be bench seats or independent seats.
[0016]
The front row seat 2 of the one-box car 1 can take two height positions, a low position (FIG. 1) at a relatively low position and a high position (FIG. 2) at a relatively high position. . In the low position mode (FIG. 1), the vehicle can be driven in a relatively low drive posture with the knees extended like a passenger car, lower than the second and subsequent seat rows 2 to 5, and the high position mode (FIG. 2). Thus, it is possible to drive the vehicle in a relatively high drive posture in which the knees are greatly bent like a commercial vehicle having a height equal to or higher than the height of the second and subsequent sea rows 2 to 5.
[0017]
In the one-box car 1, the attitude of the handle 7 changes between a low position mode (L mode) and a high position mode (H mode). In the L mode, as shown in FIG. In the H mode, the operation surface 7a of the steering wheel 7 is relatively upward, as can be understood from FIG.
[0018]
In the one-box car 1, the direction of the meter surface 10 changes between the L mode and the H mode, and the position and direction of the accelerator and brake pedal 11 change. In the L mode, the meter surface 10 and the pedal 11 are in a relatively rearward state as can be understood from FIG. 1, and in the H mode, they are in a relatively upward state as can be understood from FIG. Become.
[0019]
As shown in FIG. 3, the one-box car 1 is in the H mode in a state where the seat back of the second row of seats 3 is folded over the seat cushion, and is directly below the front row seats 2. It can be stored in.
[0020]
As described above, the one-box car 1 of the embodiment can not only greatly change the height level of the front row seat 2 up and down, but also change the front row seat 2 to the high position, The three rows of seats 3 to 5 can be installed in the passenger compartment space 13 behind the seats 2, so that a limited number of front and rear vehicles can be used by many people. Further, in the H mode, by storing the second row seats 3 directly below the front row seats 2, it is possible to provide an occupant in the rear compartment space 13 with a spacious space.
[0021]
Referring to FIG. 4, the posture changing mechanism of the steering wheel 7 will be described. In the steering shaft 20, means such as a ball joint 21 is interposed in the middle of the steering shaft 20, whereby the upper end portion 20 a of the steering shaft 20 is moved. Can be swung up and down.
[0022]
An outer cylinder 22 is provided at an end of the steering shaft upper end portion 20a so as to be relatively movable, and the handle 7 is fixed to the outer cylinder 22. The outer cylinder 22 is provided with a lateral bar 24 protruding toward the side. The lateral bar 24 extends through a non-circular arch-shaped cam groove 26 of a bracket 25, and Due to the groove 26, as the upper end portion 20a of the steering shaft moves upward, the upper end portion 20a of the steering shaft relatively deeply enters the inside of the outer cylinder 22, thereby forming a substantial effective length of the steering shaft 20. The dimension L (FIG. 5) is reduced (L2 <L1).
[0023]
Reference numeral 27 shown in FIG. 4 is a stopper hole formed on the end face of the horizontal bar 24. Stopper pins (shown in the drawing) that protrude and retract toward the stopper holes 27 are respectively located in an H mode position where the steering shaft upper end portion 20a is relatively upright and an L mode position where the steering shaft upper end portion 20a is relatively inclined. The stopper pin is inserted into the stopper hole and is engaged with the stopper hole, whereby the upper end portion 20a of the steering shaft is fixed at the H mode position or the L mode position.
[0024]
The swinging of the upper end portion 20a of the steering shaft may be manually performed. However, if the swinging is performed electrically, a gear fixed to the output shaft of the motor 28 attached to the bracket 25 as shown in FIG. What is necessary is just to arrange the toothed belt 30 meshing with 29 along the circumference of the arched cam groove 26, and to connect the horizontal bar 26 to the toothed belt 30. Thus, by rotating the motor 28 forward or backward, the driving force of the motor 28 can swing the steering shaft upper end portion 20a.
[0025]
The outer cylinder 22 and the upper end portion 20a of the steering shaft slidable up and down in the outer cylinder 22 cannot be relatively rotated by having a non-circular cross-sectional shape as shown in FIG. When the handle 7 is rotated, the rotation is transmitted from the outer cylinder 22 to the upper end portion 20a of the steering shaft, and the front wheels (not shown) are steered.
[0026]
7 and 8 illustrate a mechanism in which the meter surface 10 of the instrument unit 32 arranged in front of the driver's seat changes between the H mode and the L mode. In this embodiment, the instrument unit 32 is installed on the outer cylinder 22 of the steering shaft, and a gear 34 meshing with the spur gear 33 provided on the outer cylinder 22 is provided on the instrument unit 32 as shown in FIG. Then, the instrument unit 32 swings due to the movement of the outer cylinder 22 in the axial direction, and the direction of the meter surface 10 changes.
[0027]
That is, when the outer cylinder 22 moves in the lower left direction in the figure to shift to the H mode, the meter surface 10 rotates clockwise in conjunction with the movement, and faces the driver's eyes E in the H mode. become. Conversely, when the outer cylinder 22 moves in the upper right direction in the figure to shift to the L mode, the meter surface 10 rotates counterclockwise in conjunction with the movement, and faces the driver's eyes E in the L mode. It will be in a state of having done.
[0028]
FIGS. 9 and 10 exemplify a mechanism in which the accelerator pedal 40 of the pedals 11 arranged in the driver's seat changes between H mode and L mode. An accelerator bracket 42 is fixed to the floor panel 41 on the driver's seat side. As can be understood from FIG. 10, the bracket 42 has two side walls 42a and 42b, and these two side walls 42a and 42b are provided. Is formed with a long hole 43 that extends in a curved manner up and down. Notches 43a and 43b are formed at the upper and lower ends of the long hole 43.
[0029]
The accelerator pedal 40 is fixed to an accelerator support shaft 44, and each end of the accelerator support shaft 44 passes through the elongated hole 43, and the accelerator support shaft 44 is vertically movable by being guided by the elongated hole 43. .
[0030]
A pulley 45 is attached to the accelerator support shaft 44, and one end of an accelerator wire 46 is fixed to the pulley 45. When the accelerator pedal 40 is depressed, the accelerator wire 46 is pulled, and an engine throttle (not shown) connected to the other end of the accelerator wire 46 is driven in the valve opening direction.
[0031]
One end of a link 47 is attached to the accelerator support shaft 44. The link 47 is driven by a pedal motor 48, and the link 48 swings by the forward or reverse rotation of the motor 48, whereby the accelerator support shaft is rotated. 44 moves up and down along the long hole 43.
[0032]
In the L mode, the accelerator support shaft 44 moves upward and is positioned at a relatively high position by the upper notch 43a located at the upper end of the long hole 43. In this state, the accelerator pedal 40 relatively faces rearward. State (the state shown by the solid line in FIG. 9).
[0033]
In the H mode, the accelerator support shaft 44 moves downward and is positioned at a relatively low position by the lower notch 43b located at the lower end of the long hole 43. In this state, the accelerator pedal 40 is relatively upwardly oriented. State (a state shown by a virtual line in FIG. 9).
[0034]
FIGS. 11 and 12 illustrate a mechanism in which the brake pedal 50 of the pedals 11 arranged in the driver's seat changes between an H mode and an L mode. A brake bracket 52 is fixed to the floor panel 41 on the driver's seat side. As can be understood from FIG. 12, the bracket 52 has two side walls 52a and 52b, and these two side walls 52a and 52b are provided. Is formed with a long hole 53 that extends in a curved manner up and down. Notches 53a and 53b are formed at the upper and lower ends of the elongated hole 53.
[0035]
The brake pedal 50 is fixed to a brake support shaft 54, and each end of the brake support shaft 54 passes through the long hole 53, and the brake support shaft 54 can be moved up and down by being guided by the long hole 53. .
[0036]
A gear 55 is attached to the brake support shaft 54, and one end of a toothed belt 56 is wound around the gear 55. The other end of the toothed belt 56 is wound around a second gear 57, and the second gear 57 is attached to a second shaft 58 supported on both side walls 52a, 52b of the bracket 52. Further, a first lever 59 is attached to the second gear 57, and a push rod 60 of a brake booster is attached to a free end of the first lever 59.
[0037]
The brake support shaft 54 is associated with the above-described pedal motor 48 via a second lever 61, and when the pedal motor 48 rotates forward or backward, the brake support shaft 54 is swung by the second lever 61. And moves up and down along the long hole 53.
[0038]
In the L mode, the brake support shaft 54 moves upward and is positioned at a relatively high position by the upper notch 53a located at the upper end of the long hole 53. In this state, the brake pedal 50 is relatively rearwardly directed. (The state shown by the solid line in FIG. 11).
[0039]
In the H mode, the brake support shaft 54 moves downward and is positioned at a relatively low position by the lower notch 53b located at the lower end of the long hole 53. In this state, the brake pedal 50 moves relatively upward. (The state shown by a virtual line in FIG. 11).
[0040]
The posture switching of the accelerator pedal 40 and the brake pedal 50 may be performed by independent power sources, but is preferably performed by the common pedal motor 48 as described above. In this case, FIG. It is preferable to use a bevel gear train 62 as illustrated.
[0041]
Next, the front row sheet 2 and the second row sheet 3 will be described with reference to FIG. The front row seat 2 has front and rear links 201 and 202 separated from each other in the front and rear directions, and one ends of the front and rear links 201 and 202 are swingably attached to the floor panel 62. The other end of the front link 201 and the other end of the rear 202 are swingably attached to a rail 303 for adjusting the front seat 2 forward and backward, and the front and rear links 201 and 202 allow the front row seat 2 to move upward and downward. An H mode is set at an upper position displaced forward, and an L mode is set at a lower position displaced downward and rearward. The front row 2 can be finely adjusted in the front and rear positions by the rails 203 in the H mode and the L mode in the same manner as in the related art.
[0042]
As described above, in the H mode, the folded second row sheet 3 can be stored immediately below the front row sheet 2, and the storing procedure of the second row sheet 3 is shown in FIG. This will be described with reference to FIGS.
[0043]
First, the seat back 2a of the front row seat 2 is dropped on the seat cushion 2b (FIG. 15), then the rear link 202 is detached from the front row seat 2, the front row seat 2 is lifted forward, and the rear link 202 is lifted. Is tilted backward (FIG. 16).
[0044]
The seat back 3a of the second row seat 3 is fallen on the seat cushion 3b, and the second row seat 3 is folded until the seat back 3a is overlaid on the seat cushion 2b (FIG. 17). The second row seat 3 is attached to the floor panel 62 via a rail 301 extending forward and below the front row seat 2 and front and rear links 302 and 303. The second row seat 3 moves forward along the rail 301. Can be moved to
[0045]
In a state where the height position of the second-row seat 3 is lowered by folding the second-row seat 3 and making the links 302 and 303 forward, the second-row seat 3 is moved forward to below the front-row seat 2. (FIGS. 18 and 19) Then, the front row seat 2 is depressed to raise the seat back 2a (FIG. 20). Thus, in the H mode, the second row sheet 3 is stored below the front row sheet 2.
[0046]
FIG. 21 illustrates a support structure of the second row sheet 3, and it is preferable that the second row sheet 3 can be moved back and forth via the table 305. The table 305 includes wheels 306 guided by rails 301, which can be locked and unlocked by lock levers 307.
[0047]
Further, the front row seat 2 and the second row seat 3 preferably have mutual locking means 206, 310 housed in side cases 205, 309, 65, as shown in FIG. The first mutual locking means 206 locks the front row seat 2 and the second row seat 3 located immediately below the front row seat 2. The second mutual locking means 310 locks the second row seats 3 and the side cases 65 fixed to the floor panel 62. Thus, the front row seat 2 in the H mode can be locked to the side case 65 (floor panel 62) via the second row seat 3 stored immediately below. These first and second mutual locking means 206 and 310 can be unlocked by operating release levers 207 and 311 provided on the cases 205 and 309.
[0048]
If the switching between the H mode and the L mode of the front row seat 2 is made electric, the rear link 202 of the front row seat 2 and the seat motor 210 may be connected by a gear train 211 (FIG. 23). In order to fix the position of the front row seat 2 at the high position and the low position, it is preferable to use a ratchet 224 that engages with the sector gear 223. In this case, the engagement of the ratchet 224 is released, for example, by connecting the ratchet 224 via a wire 226 to a manual operation knob 225 prepared in the driver's seat, and pulling the operation knob 225 to reduce the spring force of the tension spring 227. The ratchet 224 may be displaced away from the fan gear 223 to release the restraint of the fan gear 223.
[0049]
Further, in order to improve safety, first and second contacts 227 and 228 which are electrically engaged when the ratchet 224 is disengaged from the fan gear 223 are provided, and the contacts 227 and 228 come into contact with each other. Preferably, operation of the seat motor 210 is enabled.
[0050]
FIG. 25 is an overall system diagram when the switching between the H mode and the L mode is automated. In the figure, reference numeral 101 denotes a CPU, to which signals from a seat height mode recognition sensor 102, a parking brake SW 103, and a range detection sensor 104 of an AT shift lever are input. Further, a motor power signal for driving the steering motor 28 (FIG. 4), the seat motor 210, and the pedal motor 48 is output from the CPU 101.
[0051]
Signals from a vehicle speed sensor 105, a steering shaft position sensor 106, a seat position sensor 107, and a pedal position sensor 108 are input to the CPU 101.
[0052]
Switching between the H mode and the L mode of the front seat 2 can be performed by, for example, preparing a switch 109 operable by the driver in the driver's seat, and operating the switch 109 to move the front row seat 2 upward or downward. What is necessary is just to make it displace.
[0053]
To switch the front row seat 2 to the H mode or the L mode, (1) the signal from the vehicle speed sensor 105 is the vehicle speed zero Km / h, and (2) the signal from the range detection sensor 104 is the parking brake ON or the parking range. It is assumed that That is, when the vehicle is stopped and parked, it is desirable for safety measures to be able to change the vertical position of the front row seat 2 for the first time.
[0054]
For example, when the H mode is selected by operating the mode switching switch 109, it is determined in step S1 shown in FIG. 26 whether mode switching may be performed based on a mode setting start condition (eg, zero vehicle speed), and YES. If (the mode switching condition is satisfied), the process proceeds to steps S2, S3, and S4 to operate the motors 28, 210 and the like to set the steering wheel 7 and the pedal 11 to the H mode (FIG. 2). It is confirmed by the signals from the sensors 106 to 108 such as the steering position sensor that the seat 2, the steering wheel 7, and the pedal 11 are located at the normal positions in the H mode (step S5), and thereafter, the system is stopped (step S5). Step S6).
[0055]
As described above, the preferred embodiment of the present invention has been described. If the front row seat 2 and the second row seat 3 are independent seats for each occupant, for example, only the driver's seat is vertically shifted between H mode and L mode. The driver seat may be displaced, and the second row seat following the driver seat may be stored immediately below the driver seat in the H mode.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a state in which a one-box car according to an embodiment is used with three rows of seats.
FIG. 2 is a diagram for explaining a state in which the one-box car of the embodiment is used with four-row seats.
FIG. 3 is a view for explaining a state in which a second-row seat of a four-row one-box car according to the embodiment is accommodated under a front-row seat in relation to FIG. 2;
FIG. 4 is a schematic configuration diagram showing an example of a mechanism for changing a handle attitude in accordance with a change in the seat height position when a front row seat is changed to a high position and a low position.
FIG. 5 is a diagram for explaining that the effective length dimension of the steering shaft changes as the steering wheel attitude changes.
6 is a cross-sectional view of the steering shaft taken along a line VI-VI in FIG.
FIG. 7 is a diagram for explaining that a meter surface changes in accordance with a change in a steering wheel posture.
FIG. 8 is a schematic configuration diagram illustrating an example of a mechanism for changing a meter surface according to a change in a handle posture.
FIG. 9 is a diagram for explaining that when the front row seat is changed between a high position and a low position, the attitude of the accelerator pedal changes with the change in the seat height position.
FIG. 10 is a schematic configuration diagram showing an example of a mechanism for changing the attitude of an accelerator pedal in accordance with a change in the seat height position when the front row seat is changed to a high position and a low position. .
FIG. 11 is a diagram for explaining that when the front row seat is changed between a high position and a low position, the posture of the brake pedal changes with the change in the seat height position.
FIG. 12 is a schematic configuration diagram illustrating an example of a mechanism for changing the attitude of a brake pedal in accordance with a change in the seat height position when the front row seat is changed between a high position and a low position. .
FIG. 13 is a diagram exemplifying a specific mechanism in a case where the arrangement position of an accelerator pedal and a brake pedal is switched by a common motor.
FIG. 14 is a diagram illustrating a first step of storing a second-row sheet below a front-row sheet.
FIG. 15 is a diagram illustrating a second step of accommodating a second-row sheet below a front-row sheet.
FIG. 16 is a diagram showing a third step of accommodating a second-row sheet below a front-row sheet.
FIG. 17 is a diagram illustrating a fourth step of accommodating the second row sheet below the front row sheet.
FIG. 18 is a diagram illustrating a fifth step of accommodating a second-row sheet below a front-row sheet.
FIG. 19 is a diagram illustrating a sixth step of accommodating the second-row sheet below the front-row sheet.
FIG. 20 is a diagram illustrating a final step of storing a second-row sheet below a front-row sheet.
FIG. 21 is an exploded perspective view showing an example of a sheet support structure for a second row of sheets.
FIG. 22 is a perspective view showing a structure for fixing the front row seat to the floor panel after the second row seat is accommodated under the front row seat at the high position.
FIG. 23 is a diagram illustrating an example of a specific configuration in a case where a motor is used to perform a high position, a low position, and a vertical operation of a front row seat.
FIG. 24 is a diagram showing an example of a mechanism for fixing the position of the front row seat at a high position and a low position.
FIG. 25 is an overall system diagram of control for switching a front row seat, a pedal, and the like between an H mode and an L mode.
FIG. 26 is a flowchart showing a control procedure for changing a front row seat, a pedal, and the like.
[Explanation of symbols]
1 One Box Car 2 Front Row Seat 2a Front Row Seat Back 2b Seat Cushion 201 Front Row Seat Front Link 202 Front Row Seat Back Link 3 Second Row Seat 3a Second Row Seat Back 3b Second row seat cushion 301 Rail for moving the second row seat forward to the front row seat down to the bottom 302 Front link of the second row seat 303 Rear link of the second row seat

Claims (6)

A seat device for a vehicle including a front row seat provided on a floor panel of the vehicle, and a second row seat located behind the front row seat,
A front row sheet support unit that supports the front row sheet so that the front row sheet can be displaced in the vertical direction and can take a high position and a low position,
A second-row sheet supporting means for supporting the second-row sheet so that the second-row sheet can be accommodated below the front-row sheet when the front-row sheet is in the high position; Vehicle seat device. The front row sheet support means displaces the front row sheet upward and forward when the front row sheet takes a high position, and lowers the front row sheet when the front row sheet takes a low position. The vehicle seat device according to claim 1, wherein the vehicle seat device is displaced in a direction and a rearward direction. The vehicle seat device according to claim 1, wherein the front row seat includes at least a driver seat. The vehicle seat device according to any one of claims 1 to 3, wherein the vehicle includes one or more rows of seats behind the second row of seats. The vehicle seat according to claim 1, wherein the second-row seat includes a seatback and a seat cushion, and both the seatback and the seat cushion of the second-row seat are accommodated below the front-row seat. apparatus. The vehicle has a total of four rows of seats including the front row seat and the second row seat, and when the front row seat is in the high position, the second row seat is located below the front row seat. The vehicle seat device according to any one of claims 1 to 5, wherein the seat device can take a three-row seat mode and a four-row seat mode in which the second-row seat is removed from the front-row seat by being accommodated.

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