JP5251199B2 - Driving posture adjustment device - Google Patents

Description

  The present invention relates to a driving posture adjusting device configured to be able to adjust the driving posture of a driver seated on a driver seat.

Conventionally, for example, as shown in Patent Document 1 below, a driver operates a switch to move a driver seat to a preset standard position before sitting on the driver seat, and then sits on the driver seat. The driver adjusts the driver's seating position, seating posture, etc. to suit the driving operation by sequentially adjusting the front and rear position of the driver's seat and the vertical position of the seat surface by operating the switch. Has been done.
Japanese National Patent Publication No. 10-512214

  In the automobile element position adjustment system disclosed in Patent Document 1, the accelerator position is adjusted by adjusting the front and rear positions of the seat surface of the driver seat when the height of the driver seated on the driver seat is different from the standard height. Appropriate operation of an operation pedal such as a pedal can be realized, and the front view can be appropriately secured by adjusting the vertical position of the seating surface.

  However, if the vertical position of the seat surface is adjusted after adjusting the front / rear position of the seat surface of the driver's seat as described above, the seating posture of the driver seated on the driver's seat changes and the operation on the operation pedal is changed. In order to ensure the operability of the operation pedal, the front and rear positions of the driver seat must be adjusted again. If the front and rear position of the driver seat is readjusted, the driver's seating posture may deviate from the appropriate state, or the driver's eye point may deviate from the appropriate line, leading to a deterioration in the forward visibility. In response to this, there is a problem that the vertical position of the seat surface must be adjusted again.

  In order to avoid the complexity of the readjustment, it may be considered that the front-rear position of the driver's seat and the vertical position of the seat surface are adjusted at the same time with a preset correspondence relationship. In this case, when the user wants a seating posture according to the user's preference, that is, when he wants a seating posture that deviates from the above-mentioned correspondence according to long-time driving style, physical characteristics, etc. There is a problem that can not be.

  In view of the circumstances described above, an object of the present invention is to provide a driving posture adjusting device that can easily and appropriately adjust the driving posture of a driver seated on a driver seat.

In order to solve the above problems, the present invention provides a front-rear position adjustment mechanism that adjusts the front-rear position of the seat surface of the driver seat, a seat surface adjustment mechanism that adjusts at least the vertical position of the seat surface of the driver seat, and driving In a vehicle having an operation pedal that is depressed by operating feet of a driver seated on a seat, at least one of the front / rear position adjustment mechanism and the seat surface adjustment mechanism is driven, and the seat surface of the driver seat is Basic control means for controlling to be positioned on a reference line set in advance in the front-rear direction and the up-down direction, driving at least one of the front-rear position adjustment mechanism and the seat surface adjustment mechanism by a driver's operation, Position adjusting means for moving the seat surface of the driver seat to a position deviating from the reference line, and the basic control means is configured to move the driver seat seat by the position adjusting means. When the seat surface of the vehicle is moved to a position deviating from the reference line, at least one of the front / rear position adjusting mechanism and the seat surface adjusting mechanism is driven to deviate from the reference line. A basic mechanism for moving the seat surface of the driver's seat along the reference line by interlocking the return means for returning the seat surface to the reference line , the front-rear position adjusting mechanism, and the seat surface adjusting mechanism. A driving posture adjusting device characterized by comprising a moving means (claim 1).

  According to this apparatus, the position of the seat surface of the driver's seat is set on the predetermined reference line corresponding to the height of the driver, for example, the driver's seating posture is set to an appropriate posture by the basic control means, and the operation is performed. It can be easily controlled on a reference line that maintains the pedal operability satisfactorily and secures the driver's field of view, and the position adjustment means allows the seat surface of the driver seat to be controlled. The position can be easily changed according to the driver's favorite position or the detailed physical characteristics of the driver, and convenience is improved. In particular, in this apparatus, the basic control means is provided with a return means, and by this return means, the seat surface of the driver's seat at a position deviating from the reference line can be easily returned to the reference line. This improves convenience. That is, when the driver changes, the seat surface of the driver seat can be easily changed to an appropriate position on the reference line corresponding to a new driver, and the front / rear position adjusting mechanism and the seat Complicated operations of the surface adjustment mechanism can be suppressed.

Furthermore, in this apparatus, the seat surface of the driver's seat is moved by the reference moving means along an appropriate reference line corresponding to the driver's physique and the like, so even if the driver's physique changes variously Each driver can easily adjust the position of the seat surface of the driver seat to an appropriate position corresponding to his / her physique and the like. This further increases convenience.

The specific return means of the seat surface of the driver's seat by the return means is not particularly limited. For example, the driver who has the seat surface of the driver seat seated on the seat surface by the return means. The front / rear position adjustment mechanism is configured to adjust the moving speed in the front / rear direction of the seat surface of the driver seat and the moving speed in the vertical direction of the seat surface of the driver seat so as to swing and displace using the knee portion of the driver seat as a fulcrum And the seating surface adjusting mechanism may be driven to return the seating surface of the driver's seat to the reference line ( claim 2 ).

  As described above, when the seat surface of the driver's seat is rocked and displaced with the knee as a fulcrum, the ankle angle and the sole angle of the driver are maintained. Therefore, with this configuration, the seat surface of the driver seat can be quickly returned to a position where the operability with respect to the operation pedal including the accelerator pedal does not change before and after the seat surface of the driver seat is returned. In particular, when the same driver, another driver having the same physique, or the like returns to the reference line, a change in the driver's posture is suppressed and a return without a sense of incongruity is realized.

On the other hand, in order to achieve a comfortable return by maintaining the driver's eye point on an appropriate line, the return means allows the driver's eye point of the driver's eye point seated on the seat surface to be restored. The front / rear position adjusting mechanism and the seat are adjusted while adjusting the moving speed in the front-rear direction of the seat surface of the driver seat and the moving speed in the vertical direction of the seat surface of the driver seat so as to move in parallel with the appropriate line. The surface adjustment mechanism may be driven to return the seat surface of the driver seat to the reference line ( Claim 3 ).

In addition, in order to return the seat surface of the driver seat to the reference line earlier, the return means maximizes the moving speed in the front-rear direction of the seat surface of the driver seat by the return means. And the seating surface adjustment mechanism is driven so that the vertical movement speed of the seating surface of the driver seat is maximized, and the seating surface of the driver seat is returned to the reference line. ( Claim 4 ).

  As described above, according to the present invention, it is possible to provide a driving posture adjusting device that can easily and appropriately adjust the driving posture of a driver seated on a driver seat.

  1 to 5 show an embodiment of a driving posture adjusting apparatus according to the present invention. A vehicle equipped with this driving posture adjusting device is provided with a seat adjusting mechanism including a front / rear position adjusting mechanism 2 and a seating surface adjusting mechanism 3. The front / rear position adjusting mechanism 2 adjusts the front / rear position by sliding the seat cushion (seat surface) 1a of the driver's seat 1 disposed in the passenger compartment in the front / rear direction of the vehicle body. The seat surface adjustment mechanism 3 moves the seat cushion 1a of the driver seat 1 up and down to adjust the vertical position of the seat surface, and adjusts the inclination angle of the seat surface. In addition, an operation pedal including a brake pedal 4 and an accelerator pedal 5 that are depressed by an operation foot of a driver seated on the driver's seat 1 is juxtaposed on the left and right in the front part of the passenger compartment.

  The vehicle body includes a dash panel 6 that partitions an engine room and a vehicle compartment, a kick-up portion 7 that extends rearward from the lower end portion of the dash panel 6, and a rear end portion. And a substantially flat vehicle body floor portion 8 that extends to the rear side of the vehicle body. On the upper surface of the vehicle body floor portion 8, a well-known floor trim material (including a insulator made of felt material or glass wool having sound insulation and heat insulation functions, and a surface layer material made of carpet material covering the upper surface) (Not shown) is installed.

  A driver-seat floor mat 11 is laid on the vehicle body floor 8 positioned at the feet of the driver seated on the driver seat 1. The driver seat floor mat 11 is made of, for example, a synthetic rubber material or a urethane resin material having appropriate elasticity and rigidity. As shown in FIG. 2, the driver seat floor mat 11 is integrally formed with a bulging portion including a first inclined surface portion 12, a second inclined surface portion 13, and a connecting portion 14. The first inclined surface portion 12 is a portion whose upper surface 15 is inclined forward and upward at an angle α of about 16 ° to 24 ° with respect to a horizontal plane. The second inclined surface portion 13 is a portion whose upper surface 16 is inclined forward and upward at an angle β smaller than the upper surface 15 of the first inclined surface portion 12 (for example, about 10 ° to 15 ° with respect to the horizontal plane). And the said connection part 14 is a part which connects the said both inclined surface parts 12 and 13 gently.

  The first inclined surface portion 12 is pushed by a depression point of the brake pedal 4, that is, a lever ball portion (a bulging portion located at the base portion of the thumb) of the operating foot of the driver seated on the driver seat 1. It is formed in the area where the heel of the operation foot (usually the right foot) located behind the stepping point 4a. Thus, even if the driver is relatively short, the brake pedal can be used as long as the first inclined surface portion 12 that inclines forward is provided in the region where the rear saddle of the brake pedal 4 is placed. 4 can be stepped on properly.

  The second inclined surface portion 13 is formed in a region on which the heel of the operation foot located behind the stepping point 5a of the accelerator pedal 5 is placed. The front-rear dimension of the second inclined surface portion 13 is such that the bulging portion formed by the second inclined surface portion 13 is substantially the entire region where the heel located on the rear side of the accelerator pedal 5 is placed, that is, the driver seat 1. It is set so that all the drivers who are seated on the vehicle may be disposed over the entire length of the front and rear region where the heel portion of the operation foot may be placed. If the second inclined surface portion 13 that inclines forward is provided in the region where the rear saddle of the accelerator pedal 5 is placed in this way, as described later, the driver with a relatively short height can Even if it exists, the said accelerator pedal 5 can be stepped on appropriately.

  The front-rear dimension of the first inclined surface part 12 is shorter than the front-rear dimension of the second inclined surface part 13, and an average height person (statistical) whose rear end part of the first inclined surface part 12 is seated on the driver's seat 1 The person who is most likely to sit on the driver's seat 1 is set to be disposed slightly in front of the heel mounting position of the operating foot of the driver's seat 1, When a sudden operation is performed, the driver's buttocks are prevented from interfering with the rear end of the first inclined surface portion 12.

  As shown in FIGS. 2 and 3, the connecting portion 14 has a shape that allows the rear end portion of the first inclined surface portion 12 and the rear end portion of the second inclined surface portion 13 to continue in an arc shape in plan view. doing. Further, as shown in FIG. 5, the connecting portion 14 has a shape in which the side end portion of the first inclined surface portion 12 and the side end portion of the second inclined surface portion 13 are smoothly continuous in a front view. Yes. Therefore, the connecting portion 14 causes the step and the first inclination between the first inclined surface portion 12 and the second inclined surface portion 13 due to the fact that the front-rear dimension of the first inclined surface portion 12 is shorter than the second inclined surface portion 13. The formation of a step due to the difference between the inclination angle of the upper surface 15 of the surface portion 12 and the inclination angle of the upper surface 16 of the second inclined surface portion 13 is prevented.

  Then, the driver's seat floor mat 11 is fixed on the vehicle body floor portion 8 via an adhesive or a locking tool or the like, whereby an upper surface 15 is formed on a part of the region where the heel of the operation foot is placed. , 16 are inclined forwardly and first, and the second inclined surface portions 12, 13 are formed, that is, bulge portions that become larger in comparison with the thickness toward the front. Moreover, between the rear ends of the first and second inclined surface portions 12 and 13 and the substantially horizontal floor mat surface 21 continuing to the rear thereof, as shown in FIG. 4 and FIG. The bent portions 17 and 18 are formed to extend in the vehicle width direction.

  As shown in FIGS. 6 to 8, a pair of left and right seat slide lower rails 41 that support the seat cushion 1 a so as to be movable back and forth are disposed in the portion where the driver seat 1 is installed, and the seat slide An upper rail 42 is supported so as to be slidable along the seat slide lower rail 41.

  The seat slide lower rail 41 is made of C-type steel or the like having an open upper surface, and mounting brackets 43 and 44 are integrally joined to both front and rear ends thereof by welding or the like. The seat slide lower rail 41 is installed on the vehicle body floor portion 8 in a state where the mounting brackets 43 and 44 are inclined slightly upwardly forward by fixing the mounting brackets 43 and 44 to the upper surface of the cross member 19 via fastening bolts or the like. Yes.

  In the left and right seat slide lower rails 41, as shown in FIG. 8, a rotating shaft 45 made of a screw shaft is rotatably installed. Between the front end portions of the left and right seat slide upper rails 42, a drive shaft 47 that is rotationally driven by a drive motor 46 and a support member 48 that rotatably supports the drive shaft 47 are installed so as to extend in the vehicle width direction. At both left and right end portions of the drive shaft 47, there are provided power transmission portions 49 including a bevel gear mechanism or a worm wheel gear mechanism for transmitting the drive force to the rotary shaft 45. A nut block 41 a to which the rotating shaft 45 is screwed is fixed to the bottom of the seat slide lower rail 41.

  The front / rear position adjusting mechanism 2 includes the seat slide lower rail 41, the seat slide upper rail 42, a rotation shaft 45, a drive motor 46, a drive shaft 47, a power transmission unit 49, and a nut block 41a.

  The front / rear position adjusting mechanism 2 slides and displaces the seat cushion 1a in the front / rear direction based on an operation of a main operation switch 81 and the like which will be described later.

  Specifically, when an instruction is given to move the seat cushion 1a in the forward direction by operating the main operation switch 81 or the like, the drive motor 46 is driven to rotate forward. When the drive motor 46 rotates forward, a driving force in a direction for moving the seat cushion 1a forward is transmitted to the drive shaft 47, the power transmission unit 49, and the rotation shaft 45. The rotating shaft 45 that has received the driving force is rotationally driven and screwed forward of the vehicle body while being supported by a nut block 41 a fixed to the bottom of the seat slide lower rail 41. Thereby, the seat cushion 1a of the driver's seat 1 together with the seat slide upper rail 42 is driven to the front side of the vehicle body.

  On the other hand, when an instruction is given to move the seat cushion 1a in the backward direction by operating the main operation switch 81 or the like, the drive motor 46 rotates in the reverse direction, and the driving force in the direction to retract the seat cushion 1a is the drive. It is transmitted to the shaft 47, the power transmission unit 49 and the rotating shaft 45. Then, the rotary shaft 45 is driven reversely and screwed forward to the rear side of the vehicle body, whereby the seat slide upper rail 42 and the seat cushion 1a of the driver's seat 1 are driven to the rear side of the vehicle body.

  Here, as described above, the seat slide lower rail 41 is installed on the vehicle body floor portion 8 in a state where the seat slide lower rail 41 is inclined forward and upward at a predetermined angle (for example, about 5 °). Therefore, when the front / rear position adjusting mechanism 2 drives the seat slide upper rail 42 and the seat cushion 1a of the driver's seat 1 to the front side of the vehicle body along the seat slide lower rail 41, the seat cushion 1a is interlocked with this. Is pushed upward. On the contrary, when the seat slide upper rail 42 and the seat cushion 1a of the driver's seat 1 are driven to the rear side of the vehicle body along the seat slide lower rail 41 by the front / rear position adjusting mechanism 2, the seat cushion is interlocked with this. 1a is pushed downward.

  The seat slide upper rail 42 is provided with a seat surface adjustment mechanism 3 that drives the seat cushion 1a of the driver's seat 1 up and down and changes its inclination angle. As shown in FIGS. 6 and 7, the seat surface adjustment mechanism 3 includes a cushion frame 51, a front bracket 52, a front link 53, a rear bracket 54, a rear link 55, a connecting shaft 56, a central bracket 58, and a connecting link. 59, a drive shaft 60, a drive lever 61, and a tilting drive unit 62.

  The cushion frame 51 is a frame provided on the left and right sides of the seat cushion 1a. The front bracket 52 and the front link 53 are installed on the upper surface of the front portion of the seat slide upper rail 42, and support the front end portion of the cushion frame 51. The rear bracket 54 and the rear link 55 are installed on the rear upper surface of the seat slide upper rail 42 and support the rear portion of the cushion frame 51. In the present embodiment, the rear link 55 has a triangular shape. The connecting shaft 56 connects the rear ends of the left and right rear links 55 and the rear lower ends of the cushion frames 51.

  The central link 57 is installed on the upper surface of the central portion of the seat slide upper rail 42 and transmits a driving force to the rear link 55. The central link 57 is fixed to a drive shaft 60 having a lower end portion extending in the vehicle width direction, and is rotatably supported by the central bracket 58 via the drive shaft 60. A drive lever 61 for rotating and displacing the drive shaft 60 is fixed to the drive shaft 60. The central link 57 is connected at its upper part to the front end of the rear link 55 by the connecting link 59.

  The central bracket 58 supports the central link 57 and is provided on each of the pair of left and right seat slide upper rails 42.

  Here, in the present embodiment, as shown in FIG. 6, the front link 53 and the central link 57 are tilted backward in a state where the seat cushion 1 a of the driver's seat 1 is located on the rear side of the vehicle body. In addition, the connecting shaft 56 provided at the rear end portion of the rear link 55 is positioned below, and the seat cushion 1a is held in a state of being tilted rearward at a predetermined angle.

  The tilt drive unit 62 is for driving the drive lever 61 fixed to the drive shaft 60. The tilt drive unit 62 is provided on the central bracket 58 provided on the seat slide upper rail 42 on the outer side in the vehicle width direction of the central bracket 58. As shown in FIGS. 9 and 10, the tilt drive unit 62 includes a screw shaft 64, a drive motor 65, a gear mechanism 66, and a guide bracket 67.

  The front end portion of the screw shaft 64 is connected to the tip end portion (lower end portion) of the drive lever 61 via a connecting pin 63. The drive motor 65 and the gear mechanism 66 are for driving the screw shaft 64 to rotate. The gear mechanism 66 is provided with a worm gear 69 fixed to the output shaft 65a of the drive motor 65 and a worm nut 70 that is rotationally driven by the worm gear 69. A screw hole that is screwed onto the screw shaft 64 is formed. Accordingly, the screw shaft 64 is rotated and screw-fed in response to the worm nut 70 being rotationally driven by the driving force input from the drive motor 65 via the worm gear 69.

  The guide bracket 67 is fixed to the front surface of the gear mechanism 66 and is supported by the central bracket 58 via a support bracket 68 at a base end portion thereof. The guide bracket 67 is formed with a support groove 71 for guiding the connecting pin 63 back and forth.

  In the tilt drive section 62, when the screw shaft 64 is screw-fed by driving the drive motor 65 as described above, the connecting pin 63 provided at the tip thereof moves back and forth along the support groove 71. To do. As the connecting pin 63 moves, the driving force of the driving motor 65 is transmitted to the driving lever 61 through the connecting pin 63, and the driving lever 61 is oscillated and displaced. Is rotated.

  When the drive shaft 60 is rotationally driven in this way, in the seating surface adjustment mechanism 3, the central link 57 is oscillated and displaced, and the rear link 55 and the front link 53 are connected via the connection link 59. As a result of the rocking displacement, the seat cushion 1a moves up and down.

  That is, from the state where the seat cushion 1a of the driver's seat 1 as shown in FIG. 6 is located on the rear side of the vehicle body, an instruction is given to move the seat cushion 1a upward by operating the main operation switch 81 or the like. First, the drive motor 65 is driven to rotate forward. The forward rotational driving force of the drive motor 65 is transmitted to the central link 57 via the gear mechanism 66, the screw shaft 64, the connecting pin 63, the drive lever 61, and the drive shaft 60, and the central link 57 is shown in FIG. As shown in FIG. 11, the rearward tilt state as shown in FIG. The driving force of the driving motor 65 is transmitted to the rear link 55 through the connecting link 59 in accordance with the transition of the central link 57 to the standing state. The transmitted driving force swings and displaces the rear link 55 and pulls the front end of the rear link 55 toward the front side of the vehicle body. As a result, the connecting shaft 56 provided at the rear end of the rear link 55 rises as shown by the arrow in FIG. 6, and the rear end of the seat cushion 1a is driven so as to be pushed obliquely forward in response to this. Is done.

  Further, in conjunction with the swinging displacement of the rear link 55, the front link 53 shifts from a rearward tilted state to a standing state. Thereby, the upper end pivot part of the front link 53 is driven in the direction shown by the arrow in FIG. 6, and the front end part of the seat cushion 1a is driven to move forward while being pushed up. Thus, the seat cushion 1a is displaced from the lowered position shown in FIG. 6 to the raised position shown in FIG.

  Here, in this embodiment, the upward movement amount of the rear end portion is set larger than the upward movement amount of the front end portion of the seat cushion 1a. Therefore, when the seat cushion 1a is displaced upward as described above, the seat cushion 1a is displaced so that the inclination angle thereafter becomes smaller in accordance with the upward movement of the seat cushion 1a and approaches the horizontal state. Further, the driver's hip point (sitting center point) H located on the seat cushion 1a moves obliquely forward as indicated by the arrow in FIG.

  On the other hand, when an instruction is given to move the driver's seat 1 downward by operating the main operation switch 81 or the like, the drive motor 65 of the seat surface adjustment mechanism 3 is driven in reverse, and the reverse of the drive motor 65 is performed. A rotational driving force is transmitted to the central link 57 via the gear mechanism 66, the screw shaft 64, the connecting pin 63, the driving lever 61 and the driving shaft 60. As a result, the seat cushion 1a is displaced from the raised position shown in FIG. 11 to the lowered position shown in FIG. 6, and the inclination angle thereof gradually changes in accordance with the downward movement of the seat cushion 1a.

  The driving posture adjusting device is provided with a seat back angle adjusting mechanism 98 as shown in FIG. 12 in addition to the front / rear position adjusting mechanism 2 and the seating surface adjusting mechanism 3. The seat back angle adjusting mechanism 98 is for adjusting the angle of the seat back 1b with respect to the seat cushion 1a. The seat back angle adjusting mechanism 98 may be a conventional mechanism and will not be described in detail.

  As shown in FIG. 12, the driving posture adjusting device further includes a main control means (basic control means) 85 for controlling the front / rear position adjusting mechanism 2, the seating surface adjusting mechanism 3, etc., and a sub-control means. 86. The main control means 85 comprises basic movement means 87 and return means 88. Further, the driving posture adjusting device includes a main operation switch 81, a fine adjustment switch 82, a seat back switch 84, and a reset switch 89 for operating the main control means 85 or the sub control means 86. These switches 81, 82, 84 and 89 are arranged on a switch panel provided in a console box or an instrument panel in the vehicle interior.

  The basic moving means 87 is for moving the seat cushion 1a of the driver's seat 1 along a preset reference line P which will be described later.

  As shown in FIG. 17, the reference line P is a line in which different vertical positions are set with respect to the front and rear positions. The reference line P is created by extracting appropriate values of the front and rear positions and the vertical positions of the seat cushion 1a for various drivers having different heights and connecting the positions. The appropriate position means that a driver having a standard physique of each height can maintain a comfortable posture, can properly hold the steering handle 20, and operates the depressing point 5a of the operation pedal including the accelerator pedal 5. The leg sphere part of the foot can be properly brought into contact, and the eye point I is made to coincide with an appropriate line L set to connect the lower end part of the windshield and the upper surface of the bonnet, for example, and the front view is It is a position that can be secured appropriately. Here, in the present embodiment, the appropriate angle of the seat back 1b with respect to the seat cushion 1a is also set in advance corresponding to each point on the reference line P. As will be described later, as the seat cushion 1a moves along the reference line P, the angle of the seat back 1b is also changed.

  For example, the position Hm shown in FIG. 17 is an appropriate position for an average height person M who has an average height of 173 cm of an American male and is considered to have the most chance to sit on the driver's seat 1 in the United States.

  In an ergonomic experiment, as shown in FIG. 13, if the ankle angle θ1 is maintained at about 85 ° to 95 °, the knee angle θ2 is maintained at about 115 ° to 135 °, and the bending angle θ3 is maintained at about 95 °. The result is that you can achieve a comfortable posture. Here, the comfortable posture is a sitting posture that can maintain the sitting state for a long period of time and is suitable for a handle operation, a pedal operation, and the like. In the ergonomic experiment, in the case of the average height person M, the appropriate angle of the thigh angle θ4, which is the angle formed by the thighs with respect to the horizontal line, is about 1.5 ° to the inclination angle of the seat cushion 1a. A result of adding the values is obtained.

  On the other hand, at the position Hm, as shown in FIG. 13, in the state where the seat back 1b is adjusted at a predetermined angle with respect to the seat cushion 1a, the average height person M sitting on the driver's seat 1 The ankle angle θ1 of the operating foot is 90 °, the knee angle θ2 is 125 °, the bending angle θ3 between the upper body and the thigh from the hip to the shoulder is 95 °, and the rhino angle θ4 is 17 °. The conditions for realizing the comfort posture are satisfied for all the angles θ1, θ2, θ3, and θ4. Therefore, if the seat cushion 1a is aligned with the position Hm, the comfortable posture of the average height person M is realized.

  Further, it is known that the steering handle 20 can be properly operated if the elbow angle θ5 is maintained at about 100 ° to 130 ° and the side angle θ6 is maintained at about 20 ° to 45 °. On the other hand, at the position Hm, the elbow angle θ5 is about 110 ° and the side angle θ6 is about 25 °, and the seat cushion 1a is aligned with the position Hm, so that the steering handle 20 of the average height person M can be properly gripped. Is realized.

  Further, it has been found that the sole angle of the operating foot that can properly operate the accelerator pedal 5, that is, the inclination angle θ7 of the sole with respect to the horizontal line is about 52 °. On the other hand, at the position Hm, the inclination angle θ7 of the sole is about 52 °, and by adjusting the seat cushion 1a to the position Hm, an appropriate operation of the accelerator pedal of the average height person M is maintained.

  Further, at the position Hm, as shown in FIG. 13, the eye point Im of the average height person M coincides with an appropriate line L inclined forward and downward at an angle of about 8 °. Visibility is secured appropriately.

  The position Hs shown in FIG. 17 is an appropriate position for the short stature S composed of a female driver or the like having a height of 150 cm. As shown in FIG. 17, the position Hs is forward and above the appropriate position Hm of the average height person M. Therefore, by setting the seat cushion 1a at this position Hs, the steering handle 20 of the short stature S whose hands are shorter than the average height M can be properly gripped and compared with the average height M. The eye point Is of the short stature person S with a low sitting height moves upward and is maintained on the appropriate line L. In particular, in the present embodiment, as described above, when the seat cushion 1a is displaced upward, the hip point H of the driver on the seat cushion 1a is moved obliquely forward, and the seat cushion 1a is moved to the position. By selecting Hs, the rhino angle θ4 can be reduced, and the eye point Is can be more reliably maintained on the appropriate line L.

  Here, as shown in FIG. 14, the short stature S accelerators the palm ball portion Bs while maintaining the ankle angle θ1 of the operating foot at 90 ° and the inclination angle θ7 of the sole at 52 °. In order to keep the pedal 5 in contact with the stepping point 5a of the pedal 5, it is necessary to position the heel portion Ks of the operation leg of the short stature S above the heel portion Km of the average stature M. Specifically, the distance (about 15.5 cm) from the buttocks Ks of the short stature S to the lion sphere Bs is about 2 in comparison with the same distance (about 18.0 cm) of the average stature M. Since it is 5 cm shorter, it is necessary to position the heel part Ks of the operating leg of the short stature S above the heel part Km of the average height person M by about 2 cm (= sin 52 ° × 2.5 cm).

  On the other hand, in the present embodiment, the second leg surface portion 13 whose upper surface 16 is inclined forwardly upward at an inclination angle β of 10 ° to 15 ° is placed on the heel of the operating foot on which the rear side of the accelerator pedal 5 is located. Therefore, the short stature person S sitting on the driver's seat 1 places the heel part Ks of the operation foot on the second inclined surface part 13 as shown by the phantom line in FIG. Thus, the ankle angle θ1 of the operation foot can be maintained at 90 °, and the inclination angle θ7 of the sole can be maintained at 52 °. In other words, the lever ball portion Bs of the operation foot can be brought into contact with the stepping point 5a of the accelerator pedal 5, and the stepping operation can be appropriately performed.

  In the state where the ankle angle θ1 is maintained at 90 ° as described above, the knee angle θ2 of the short stature S increases to about 130 ° in accordance with the forward movement and upward movement of the seat cushion 1a. However, this value is in the range of 115 ° to 135 °, which is a necessary condition for realizing the comfort posture, and the comfort posture of the short stature S is ensured.

  A position Ht shown in FIG. 17 is an appropriate position for a tall person T having a height of 186 cm. As shown in FIG. 17, the position Ht is behind and below the appropriate position Hm of the average height person M. Accordingly, by setting the seat cushion 1a at this position Ht, it is possible to properly hold the steering handle 20 of the tall person T whose hand is longer than the average height person M and to compare with the average height person M. The eye point It of the tall person T having a high sitting height moves downward and is maintained on the appropriate line L. In particular, in the present embodiment, as described above, when the seat cushion 1a is displaced downward, the driver's hip point H on the seat cushion 1a is moved obliquely rearward, and the seat cushion 1a is moved to the position described above. By setting it to Hs, the rhino angle θ4 can be increased by 20.0 °, and the eye point It can be more reliably maintained on the appropriate line L.

  Here, as shown in FIG. 16, while the tall person T maintains the ankle angle θ1 of the operation foot at 90 ° and the inclination angle θ7 of the sole at 52 °, In order to keep the pedal 5 in contact with the stepping point 5a of the pedal 5, it is necessary to position the heel part Ks of the operating foot of the tall person T below the heel part Km of the average tall person M. Specifically, the distance (about 19.5 cm) from the buttocks Kt to the palm ball part Bt of the tall person T is about 1. compared with the same distance (about 18.0 cm) of the average tall person M. Since it is 5 cm long, it is necessary to position the heel part Kt of the operating leg of the tall person T by about 1.2 cm (= sin 52 ° × 1.5 cm) below the heel part Km of the average tall person M. On the other hand, in the tall person T, since the distance from the heel part Kt to the cocoon ball part Bt is sufficiently long as described above, the substantially horizontal floor mat positioned behind the first inclined surface part 12 is provided. Even in the state of being placed on the surface 21, the insulator ball portion Bt can be brought into contact with the stepping point 5 a of the accelerator pedal 5. Therefore, in the present embodiment, the accelerator pedal 5 is changed by changing the appropriate value of the inclination angle θ7 of the sole of the tall person T to 48 ° without positioning the floor surface downward in accordance with the tall person T. The operation of stepping on can be performed properly.

  As described above, when the inclination angle θ7 of the sole is set to 48 °, the ankle angle θ1 of the operation foot of the tall person T tends to be larger than 90 °. However, if the knee angle θ2 is smaller than 120 ° and the knee is bent, the ankle angle θ1 can be kept within an appropriate range (95 ° or less), and an easy posture of the tall person T is secured. The Further, if the lever ball portion Bt of the operating foot is positioned slightly above the stepping point 5a of the accelerator pedal 5, the change in the ankle angle θ1 is more effectively suppressed.

  As described above, in the present embodiment, the appropriate front-rear position and vertical position of the seat cushion 1a for the driver having a height in the range of about 150 cm to 186 cm are set on the reference line P. Accordingly, if the driver has a height within the above range and has at least a standard physique, the seat cushion 1a is positioned at any point on the reference line P, so that the sitting posture, steering handle The gripping ability of 20, the operability of the operation pedal, and the eye point I can be set to appropriate states.

  The basic moving means 87 is driven in conjunction with the drive motor 46 of the front / rear position adjustment mechanism 2 and the drive motor 65 of the seat surface adjustment mechanism 3 to simultaneously change the front / rear position and the vertical position of the seat cushion 1a. The seat cushion 1a is moved along the reference line P.

  In the present embodiment, the basic moving means 87 moves the drive amount of the drive motor 46 necessary for moving the seat cushion 1a along the reference line P and the seat cushion 1a along the reference line P. The driving amount of the driving motor 65 necessary for the operation is stored as a map with respect to the front and rear positions of the seat cushion 1a. The basic moving means 87 extracts the drive motors 46 and 65 by extracting the drive amounts of the drive motor 46 and the drive motor 65 from the respective maps based on the front and rear positions of the current seat cushion 1a. Drive according to the amount.

  Here, the current position calculation means 96 calculates the current front / rear position of the seat cushion 1a. In the present embodiment, a stepping motor is used as the drive motor 46, and the current position calculation means 96 calculates the front / rear position of the seat cushion 1a based on the rotation angle of the drive motor 46. The current position calculation means 96 calculates the vertical position of the seat cushion 1a based on the rotation angle of the drive motor 65 to which a stepping motor is applied.

  The basic moving means 87 drives the front / rear position adjusting mechanism 2 and the seat surface adjusting mechanism 3 according to the operation of the main operation switch 81. The main operation switch 81 is a toggle switch that can be operated in two directions to instruct forward or backward movement of the seat cushion 1a of the driver's seat 1 when the operation portion is pushed in the front-rear direction. When the operation portion of the main operation switch 81 is pushed forward, the basic moving means 87 moves the seat cushion 1a of the driver's seat 1 along the reference line P during the pushing operation. And lift while moving forward. On the other hand, when the operation portion of the main operation switch 81 is pushed backward, the basic moving means 87 moves the seat cushion 1a of the driver's seat 1 to the reference line P during the pushing operation. Descend while moving backward along.

  For example, when the driver changes to the short stature S in the state where the seat cushion 1a is set to the position Hm by the average stature M, the short stature S moves the main operation switch 81 forward. By continuing the pushing operation for a predetermined period of time, the seat cushion 1a can be moved to the position Hs that is forward and above the position Hm and adapted to his / her height.

  In the present embodiment, the basic moving means 87 drives the seat back angle adjusting mechanism 98 in conjunction with the front / rear position adjusting mechanism 2 or the like to change the angle of the seat back 1b with respect to the seat cushion 1a.

  In this way, if the seat cushion 1a of the driver's seat 1 moves along the reference line P as described above by the basic moving means 87, the driver seated on the driver's seat 1 matches his / her height. The position of the seat cushion 1a can be easily adjusted to an appropriate position. Actually, by the experiment conducted by the inventors, the seat cushion 1a is moved along the reference line P by the basic moving means 87, so that the majority of drivers sitting on the driver's seat 1 have their comfort postures. In the state where the user is seated while maintaining the operability, it is possible to effectively perform the operation of ensuring the front view properly by matching the eye point I with the appropriate line L while maintaining the handle operability and the pedal operability. It has been confirmed.

  In particular, in the present embodiment, the seat surface adjustment mechanism 3 is configured so that the inclination angle of the seat cushion 1a is changed along with the vertical position of the seat cushion 1a, while suppressing the vertical movement of the seat cushion 1a from being increased. The eye point I of the driver can be easily matched with the appropriate line L.

  Further, since the angle of the seat back 1b with respect to the seat cushion 1a is also changed in accordance with the movement of the seat cushion 1a along the reference line P, the vertical movement of the seat cushion 1a is further suppressed and suppressed. However, the driver's eye point I can be easily matched with the appropriate line L. For example, when a driver sitting on the driver's seat 1 changes from a tall person T to a short person S, and the short person S moves the seat cushion 1a forward and upward, in conjunction with this, By changing the angle of the seat back 1b with respect to the seat cushion 1a in the direction of raising the upper body of the short stature S, the eye point Is of the short stature is effectively matched with the appropriate line L inclined downward. be able to.

  The sub-control means 86 is for finely adjusting the position of the driver's seat 1 on the reference line P. The sub-control means 86 includes a seat cushion fine adjustment means (position adjustment means) 90 and a seat back fine adjustment means 92.

  A small portion of the driver may desire to position the eye point I above or below the appropriate line L depending on long-time driving style, physical characteristics, and the like. For example, a driver who likes sports driving may desire to avoid the feeling of hip height by positioning the eye point I below the appropriate line L in order to ensure steering wheel operability and pedal operability. On the other hand, there is a driver who desires to position the eye point I above the appropriate line L in order to improve the visibility with respect to the lower front part of the vehicle body. Further, even the same driver may desire to change the eye point I above or below the appropriate line depending on the surrounding situation. Furthermore, a driver whose limbs are longer than the standard physique as described above may desire to position the seat cushion 1a further rearward.

  On the other hand, in the present driving posture adjusting device, the eye cushion I is adjusted finely by the seat cushion fine adjustment means 90 to adjust the vertical position and the front and rear position of the seat cushion 1a of the driver seat 1 on the reference line P. Is positioned above or below the appropriate line L, or the seat cushion 1a is positioned in the front-rear direction with respect to the appropriate position while maintaining the eye point I at a predetermined line. Further, the position of the seat back 1b with respect to the seat cushion 1a is finely adjusted by the seat back fine adjusting means 92.

  The seat cushion fine adjustment means 90 finely adjusts the position of the seat cushion 1a by driving the front / rear position adjustment mechanism 2 and the seat surface adjustment mechanism 3 in conjunction with the fine adjustment switch 82. The fine adjustment switch 82 is a toggle switch that can be operated in four directions to instruct the movement of the seat cushion 1a of the driver's seat 1 in the up / down / front / rear direction when the operation unit is pushed in the up / down / front / rear direction.

  When the fine adjustment switch 82 is pushed up and down, the seat cushion fine adjustment means 90 moves the seat cushion 1a along a preset first fine adjustment line Q as shown in FIG. This moves the eye point I up and down. Specifically, the seat cushion fine adjustment means 90 includes a drive motor 46 and a seat surface adjustment mechanism of the front / rear position adjustment mechanism 2 that are necessary for moving the seat cushion 1a along the first fine adjustment line Q. 3 is stored in advance, and the seat cushion fine adjustment means 90 drives the drive motors 46 and 65 based on these values to move the seat cushion 1a to the first fine adjustment line. Move along Q.

  The first fine adjustment line Q has a knee cushion N of the driver seated on the driver's seat 1 as a fulcrum, and a seat cushion 1a of the driver's seat 1, specifically, a hip of the driver seated on the driver's seat 1. This is a line extending in the direction of oscillating and displacing the point H. As shown in FIG. 18, the first fine adjustment line Q extends in the vertical direction so as to incline backward toward the position H on the reference line P.

  When the operation part of the fine adjustment switch 82 is pushed upward, the seat cushion fine adjustment means 90 moves the seat cushion 1a to the first fine adjustment line Q during the operation period. The front / rear position adjustment mechanism 2 and the seat surface adjustment mechanism 3 are driven in conjunction with each other so as to rise along the driver's hip point H and, consequently, the eye point I is moved upward. As described above, the first fine adjustment line Q is a line set to swing and displace the driver's hip point H with the driver's knee N as a fulcrum. Accordingly, when the seat cushion 1a is moved along the first fine adjustment line Q, the position of the driver's knee N, and thus the driver's ankle angle θ1 and the sole angle θ7 are set to appropriate values by the basic moving means 87. The eye point I is changed upward while maintaining the operability with respect to the operation pedal including the accelerator pedal 5 and the like, which are respectively held at the set values.

  On the other hand, when the operation portion of the fine adjustment switch 82 is pushed downward, the seat cushion fine adjustment means 90 moves the seat cushion 1a to the first fine adjustment line during the operation period. The front-rear position adjustment mechanism 2 and the seat surface adjustment mechanism 3 are driven in conjunction with each other so as to descend along Q. In this case, the driver's hip point H and eye point I move downward while the operability with respect to the operation pedal is maintained well.

  Here, only the seat surface adjustment mechanism 3 may be operated in accordance with the operation of the fine adjustment switch 82 to raise and lower the hip point H of the driver seated on the driver seat 1. However, in this case, as shown by a broken line Q1 in FIGS. 18 and 19, corresponding to the swinging direction of the front link 53 and the rear link 55 of the seat surface adjustment mechanism 3, the hip point H and the driver As the knee N of the vehicle rises, it moves forward, and the ankle angle θ1 and the sole angle θ7 of the driver change. Therefore, in order to maintain the operability with respect to the operation pedal more reliably, it is preferable to move the seat cushion 1a along the first fine adjustment line Q as described above.

  The seat cushion fine adjustment means 90 moves the seat cushion 1a to a preset second fine adjustment line R as shown in FIG. 20 when the fine adjustment switch 82 is pushed in the front-rear direction. Move along. Specifically, the seat cushion fine adjustment means 90 includes a drive motor 46 and a seating surface adjustment mechanism of the front / rear position adjustment mechanism 2 necessary for moving the seat cushion 1a along the second fine adjustment line R. 3 is stored in advance, and the seat cushion fine adjustment means 90 drives the drive motors 46 and 65 based on these values to move the seat cushion 1a to the second fine adjustment line. Move along R.

  As shown in FIGS. 20 and 21, the second fine adjustment line R is an appropriate line L of the eye point I of the driver seated on the driver seat 1 in the direction inclined forward and downward at an angle of about 8 °. Is a line extending parallel to the line. Therefore, when the seat cushion 1a moves along the second fine adjustment line R, the driver's eye point I is maintained on a predetermined line.

  When the operation portion of the fine adjustment switch 82 is pushed forward, the seat cushion fine adjustment means 90 moves the seat cushion 1a to the second fine adjustment line R during the operation period. The front / rear position adjusting mechanism 2 and the seating surface adjusting mechanism 3 are driven in conjunction with each other so as to move forward, and the hip point H of the driver is moved forward. At this time, the eye point I of the driver seated on the seat cushion 1a is maintained on the same line as the position before the fine adjustment switch 82 is pushed.

  On the other hand, when the operation part of the fine adjustment switch 82 is pushed backward, the seat cushion fine adjustment means 90 moves the seat cushion 1a to the second fine adjustment line during the operation period. The front / rear position adjusting mechanism 2 and the seating surface adjusting mechanism 3 are driven in conjunction with each other so as to move backward along R. In this case, the driver's hip point H moves backward while the eye point I is maintained at the predetermined line L.

  Here, only the front / rear position adjustment mechanism 2 may be operated according to the operation of the fine adjustment switch 82 to move the hip point H of the driver seated on the driver's seat 1 back and forth. In this case, however, the hip point H and the eye point I move upward in accordance with the inclination angle of the seat slide lower rail 41 as shown by the broken line R1 in FIG. Then, the eye point I needs to be adjusted again because the eye point I moves from the height before the forward / backward operation. Therefore, it is preferable to move the seat cushion 1a along the second fine adjustment line R as described above.

  Further, when the seat cushion 1a is displaced along the first fine adjustment line Q as described above in accordance with the pushing operation of the operation portion of the fine adjustment switch 82 in the vertical direction, the knee portion N of the driver is By being fixed, the knee angle θ2 and the elbow angle θ5 of the driver change. However, the knee angle θ2 and the elbow angle θ5 have a greater degree of freedom than the ankle angle θ1, the sole angle θ7, etc., and even if the knee angle θ2 and the elbow angle θ5 slightly change, the driver's comfort posture can be maintained. The possibility of adverse effects such as damage to the pedal or operability of the pedal is low. However, the driver may feel uncomfortable due to changes in the knee angle θ2 and the elbow angle θ5. In this case, the seat cushion 1a is operated by operating the operation portion of the fine adjustment switch 82 back and forth. Is moved back and forth, and the discomfort is eliminated by changing the knee angle θ2 and the like while maintaining the desired eye point I set by the pushing operation of the operation part of the fine adjustment switch 82 in the vertical direction. be able to.

  Thus, in the present driving posture adjusting device, the position of the seat cushion 1a can be appropriately set according to the driver's preference by finely adjusting the position of the seat cushion 1a by the seat cushion fine adjusting means 90. . In addition, a driver having a physical feature that the limb is long but the seat height is low compared to an average human body model or the like sets the front and rear positions of the driver seat 1 according to the handle operability and the pedal operability. When the situation occurs such that the eye point I is located below the appropriate line L, or vice versa, the seat cushion fine adjustment means 90 finely adjusts the seat cushion. There is an advantage that the position 1a can be set to a more appropriate position for the driver.

  The seat back fine adjustment means 92 drives the seat back angle adjustment mechanism 98 based on the operation of the seat back switch 84 to finely adjust the angle of the seat back 1b with respect to the seat cushion 1a. The seat back switch 84 is a toggle switch that can be operated in two directions to instruct the magnitude of the angle of the seat back 1b with respect to the seat cushion 1a when the operation portion is pushed in the front-rear direction. The seat back fine adjustment means 92 drives the seat back angle adjusting mechanism 98 so that the seat back 1b is tilted forward when the seat back switch 84 is pushed forward, and the seat back is adjusted. The angle of 1b with respect to the seat cushion 1a is reduced. On the other hand, when the seat back switch 84 is pushed backward, the seat back angle adjusting mechanism 98 is driven so that the seat back 1b is tilted backward, and the angle of the seat back 1b with respect to the seat cushion 1a is driven. Increase

  Thus, if the angle of the seat back 1b with respect to the seat cushion 1a can be finely adjusted independently of the position of the seat cushion 1a, a more appropriate driving posture can be provided for various drivers or various driving situations. This improves convenience.

  The return means 88 is for returning the seat cushion 1a of the driver's seat 1 moved to the position deviating from the reference line P by the sub-control means 86 as described above on the reference line P. is there. The return means 88 is provided with reference line storage means 94 for storing the reference line P. The reference line storage unit 94 stores a map in which the front and rear positions and the vertical positions of the seat cushion 1a at each point on the reference line P are associated with each other.

  The return means 88 drives the front / rear position adjustment mechanism 2 and the seat surface adjustment mechanism 3 in conjunction with the operation of the reset switch 89 to return the position of the seat cushion 1a to the reference line P. . The reset switch 89 is a push switch that instructs the return when the operation unit is pressed.

  The return means 88 determines whether the current position of the seat cushion 1a is on the reference line P when the reset switch 89 is pressed. Specifically, the return means 88 first applies the current position of the seat cushion 1a calculated by the current position calculation means 96 from the reference line P map stored in the reference line storage means 94 to the front and rear position. The vertical position of the seat cushion 1a on the reference line P is extracted. The return means 88 compares the extracted vertical position on the reference line P with the current vertical position of the seat cushion 1a calculated by the current position calculating means 96, and when these values match. Determines that the position of the seat cushion 1a is on the reference line P, and if the values do not match, it determines that the position of the seat cushion 1a is not on the reference line P. Further, the return means 88 determines whether the position of the seat cushion 1a is above or below the reference line P during the comparison.

  When the return means 88 determines that the position of the seat cushion 1a is not on the reference line P, the return means 88 starts driving the front-rear position adjustment mechanism 2 and the seat surface adjustment mechanism 3.

  Specifically, when the return means 88 determines that the seat cushion 1a is above the reference line P, the drive motor 46 of the front / rear position adjustment mechanism 2 is rotated forward at the maximum number of rotations to move the seat cushion 1a forward. The seat cushion 1a is moved downward along the line S1 in FIG. 22 by moving the seat cushion 1a downward by rotating the drive motor 65 of the seating surface adjustment mechanism 3 in reverse at the maximum rotational speed. The return means 88 continues to compare the position of the seat cushion 1a with the reference line P while the drive motors 46 and 65 are driven, and determines that the seat cushion 1a has returned to the reference line P. Then, the drive of each drive motor 46, 65 is stopped.

  On the other hand, when it is determined that the seat cushion 1a is below the reference line P, the return means 88 reversely rotates the drive motor 46 of the front / rear position adjustment mechanism 2 at the maximum rotational speed to move the seat cushion 1a backward. The seat cushion 1a is moved upward along the line S2 in FIG. 22 by moving the seat cushion 1a upward by rotating the drive motor 65 of the seat surface adjustment mechanism 3 at the maximum rotational speed. Return to line P. In this way, in the present embodiment, the drive motors 46 and 65 are driven at the maximum number of rotations to move the seat cushion 1a in the front-rear and up-down directions at the maximum speed, and the seat cushion 1a is quickly brought onto the reference line P. Return.

  Thus, if the seat cushion 1a can be returned to the reference line P at an early stage, the seat cushion 1a can be changed at an early stage according to a position suitable for a new driver when the driver is changed to a driver having a different height. It becomes possible and the convenience is improved.

  The specific method for returning the seat cushion 1a on the reference line P is not limited to the above. For example, the seat cushion 1a is moved along the first fine adjustment line Q by the return means 88. 1a may be returned to the reference line P. In this case, the return amount 88 causes the drive motor 46 of the front / rear position adjustment mechanism 2 and the drive motor 65 of the seat surface adjustment mechanism 3 to be stored in the seat cushion fine adjustment means 90 (first minute amount). It may be configured to be driven based on a drive amount that realizes movement along the adjustment line Q. As described above, when the seat cushion 1a is moved along the first fine adjustment line Q, the operability with respect to the operation pedal including the accelerator pedal 5 and the like is favorably maintained. Therefore, if the seat cushion 1a is returned to the reference line P along the first fine adjustment line Q, the same driver wants to return the eye point I to the reference line P in accordance with a change in surrounding conditions. If the driver wants to return to the reference line P, etc., the change in the posture around the driver's ankle is suppressed to realize a return without a sense of incongruity. be able to.

  Further, the seat cushion 1a may be returned to the reference line P by moving the seat cushion 1a along the second fine adjustment line R by the return means 88. In this case, the return amount 88 causes the drive motor 46 of the front-rear position adjustment mechanism 2 and the drive motor 65 of the seat surface adjustment mechanism 3 to be stored in the seat cushion fine adjustment means 90, respectively. It may be configured to be driven based on a driving amount that realizes movement along the adjustment line R). In this way, when the seat cushion 1a is moved, the driver's eye point I moves along a predetermined line, thereby realizing a return without a sense of incongruity.

  Further, the return means 88 calculates a line whose distance from the reference line P is the shortest distance, and moves the seat cushion 1a along the line, thereby causing the seat cushion 1a to quickly reach the reference line P. It may be restored.

  In the present embodiment, the reference line storage means 94 stores an appropriate angle of the seat back 1b with respect to the seat cushion 1a in addition to the front / rear vertical position of the seat cushion 1a at each point on the reference line P. . Further, the current position calculation means 96 calculates the angle of the current seat back 1b with respect to the seat cushion 1a. When the angle of the seat back 1b with respect to the seat cushion 1a is finely adjusted to an angle different from the appropriate angle by the seat back fine adjustment means 92 or the like, the return means according to the operation of the reset switch 89. 88, the angle of the seat back 1b with respect to the seat cushion 1a is also returned to the proper angle.

  As described above, in the present driving posture adjusting device, the position of the seat cushion 1a of the driver's seat 1 is set to an appropriate posture by the basic moving means 87, and the operability of the operation pedal is maintained well. In addition, it can be easily controlled on the reference line P for ensuring the driver's field of view appropriately, and the position of the seat cushion 1a can be changed by the sub-control means 86 to the driver's preferred position or The position can be easily changed according to the detailed physical characteristics of the driver and the convenience is improved. Moreover, the position of the seat cushion 1a at a position deviating from the reference line P can be easily returned to the reference line P by the return means 88, and when the driver changes, the seat cushion 1a The position can be easily changed to an appropriate position on the reference line P corresponding to a new driver or the like, and it is possible to flexibly cope with a wide variety of drivers.

  Here, the specific structures of the front-rear position adjusting mechanism 2 and the seating surface adjusting mechanism 3 are not limited to the above.

  The method for calculating the current position of the seat cushion 1a is not limited to the above. For example, a sensor for detecting the position of the seat slide upper rail 42 or a sensor for detecting the position of the connecting pin 63 may be attached, and the position of the seat cushion 1a may be detected by these sensors.

It is explanatory drawing which shows 1st Embodiment of the driving posture adjustment apparatus which concerns on this invention. It is a top view which shows the specific structure of the floor mat for driver's seats. It is a perspective view which shows the specific structure of the floor mat for driver's seats. It is a side view which shows the specific structure of the floor mat for driver's seats. It is the VV sectional view taken on the line of FIG. It is a side view which shows the specific structure of a sheet | seat adjustment mechanism. It is a perspective view which shows the specific structure of a sheet | seat adjustment mechanism. It is the FF sectional view taken on the line of FIG. It is side surface sectional drawing which shows the specific structure of a seat surface adjustment mechanism. It is a plane sectional view showing the concrete composition of a seat surface adjustment mechanism. It is a side view which shows the state which moved the seat cushion to the front side of the vehicle body. It is a block diagram which shows the specific structure of the control part which a driving posture adjustment apparatus has. It is a side view which shows the sitting state of an average stature person and a short stature person. It is explanatory drawing which shows the heel mounting state of an average stature person and a short stature person. It is a side view which shows the sitting state of a tall person and an average tall person. It is explanatory drawing which shows the height mounting state of a tall person. It is a graph which shows the specific example of a basic control characteristic. It is explanatory drawing which shows the operation | movement which adjusts the up-and-down position of a hip point. It is explanatory drawing which shows the operation | movement which adjusts the up-and-down position of a hip point and an eye point. It is explanatory drawing which shows the operation | movement which adjusts the front-back position of a hip point. It is explanatory drawing which shows the operation | movement which adjusts the front-back position of a hip point and an eye point. It is explanatory drawing which shows the operation | movement at the time of the reset of the position of a seat cushion.

Explanation of symbols

1 Driver's seat 1a Seat cushion (seat surface)
2 Front / rear position adjustment mechanism 3 Seat surface adjustment mechanism 4 Brake pedal (operating pedal)
5 Accelerator pedal (operating pedal)
85 Main control means (basic control means)
86 Sub control means 87 Basic movement means 88 Reset means 89 Reset switch 90 Seat cushion fine adjustment means (position adjustment means)
P Reference line Q First fine adjustment line R Second fine adjustment line

Claims (4)

The front / rear position adjustment mechanism that adjusts the front / rear position of the seat surface of the driver's seat, the seat surface adjustment mechanism that adjusts at least the vertical position of the seat surface of the driver's seat, and the operation foot of the driver seated on the driver's seat In a vehicle having an operation pedal to be operated,
Basic control means for driving at least one of the front / rear position adjusting mechanism and the seat surface adjusting mechanism to control the seat surface of the driver's seat so as to be positioned on a reference line preset in the front / rear direction and the vertical direction. When,
Position adjusting means for driving at least one of the front / rear position adjusting mechanism and the seat surface adjusting mechanism by a driver's operation to move the seat surface of the driver seat to a position deviating from the reference line;
The basic control means drives at least one of the front-rear position adjustment mechanism and the seat surface adjustment mechanism when the seat surface of the driver's seat is moved to a position deviating from the reference line by the position adjustment means. The driver's seat is configured by interlocking the return means for returning the seat surface of the driver's seat at the position deviating from the reference line to the reference line , the front / rear position adjusting mechanism, and the seat surface adjusting mechanism. A driving posture adjusting apparatus comprising basic moving means for moving a seating surface of the seat along the reference line . The driving posture adjusting device according to claim 1 ,
The return means includes a moving speed in the front-rear direction of the seat surface of the driver seat and the driving speed so that the seat surface of the driver seat swings and displaces with a knee portion of the driver seated on the seat surface as a fulcrum. Adjusting the moving speed in the vertical direction of the seat surface of the seat, driving the front / rear position adjusting mechanism and the seat surface adjusting mechanism to return the seat surface of the driver seat to the reference line; A driving posture adjusting device. The driving posture adjusting device according to claim 1 ,
The return means includes a moving speed in the front-rear direction of the seat surface of the driver seat so that the seat surface of the driver seat moves in parallel with an appropriate line of the eye point of the driver seated on the seat surface, and The front and rear position adjustment mechanism and the seat surface adjustment mechanism are driven while adjusting the vertical movement speed of the seat surface of the driver seat, and the seat surface of the driver seat is returned to the reference line. A driving posture adjusting device characterized by the above. The driving posture adjusting device according to claim 1 ,
The return means drives the front / rear position adjustment mechanism so that the moving speed in the front / rear direction of the seat surface of the driver's seat is maximized, and moves the seat surface adjustment mechanism above / below the seat surface of the driver's seat. The driving posture adjusting device is configured to drive the vehicle so that the moving speed in the direction is maximized and to return the seating surface of the driver seat to the reference line.