JP2011073522A - Driving attitude adjusting device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a driver to properly operate an operation pedal, while restraining the driver from receiving a sense of incongruity when a remarkable difference is caused in an arranging state of a pedal operating foot and a pedal nonoperating foot of the driver. <P>SOLUTION: This driving attitude adjusting device for a vehicle is provided by juxtaposing a footrest for placing a foot of an occupant on its side, by arranging the operation pedal operated by stepping by the driver in a front part of a driver's seat 1 arranged on a floor panel of a cabin, and includes a floor part height adjusting means for adjusting a heel part placing height of the pedal operating foot by liftably displacing a heel part placing area on the floor panel for placing a heel part of the pedal operating foot when stepping the operation pedal, and the driver's seat is provided with a seat cushion 1a for forming a seating surface and a seat cushion adjusting means 58 for adjusting the relationship between left-right thigh parts of the occupant. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  According to the present invention, an operation pedal to be stepped on by a driver is disposed in front of a driver's seat installed on a floor panel of a passenger compartment, and a footrest on which a passenger puts a foot is arranged side by side. The present invention relates to a vehicle driving posture adjusting device.

  Conventionally, for example, as shown in Patent Document 1 below, the driver's seat is moved back and forth within a preset range, and the seat cushion installation height and seating surface angle corresponding to the forward / backward movement of the driver seat A seat position adjusting mechanism that adjusts the position of the driver seat and a floor lifting mechanism that drives the movable floor portion that is positioned at the foot of the occupant to move up and down in conjunction with the position adjustment operation of the driver seat. The position adjustment mechanism moves the seat cushion upward in a side view of the vehicle in conjunction with the operation of moving the driver's seat from the middle position of the front and rear movement range to the front side of the vehicle body, and reduces the inclination angle with respect to the horizontal plane. The seating surface angle is changed in the direction and the movable floor portion is raised by the floor lifting mechanism in response to the forward movement of the driver's seat. Together, driver's seat based on the set driving characteristics as increasing rate of the movable floor portion decreases gradually as it moves forward from the intermediate position, it is the practice to drive the movable floor portion.

  Further, as shown in the specification of Japanese Patent Application No. 2009-100699, an accelerator pedal composed of a so-called organ-type pedal supported swingably with a lower end hinge portion as a fulcrum, and an upper end pivot disposed on the side thereof. A floor structure of an automobile driver's seat having a brake pedal composed of a suspension pedal supported so as to be able to swing with a support as a fulcrum, and a floor mat installed so as to cover an upper surface of a floor panel located in front of the driver's seat In the above-described embodiment, the floor mat is formed with an inclined surface portion that is located rearward of the movable pedal member of the accelerator pedal and in which the upper surface of the heel portion mounting area on which the driver's heel portion is placed is inclined upward. Has been done.

JP 2008-247287 A

  In the vehicle driving posture adjusting device disclosed in Patent Document 1, the seat position adjustment is performed when the driver sitting on the driver's seat changes from a tall person to a short person such as a female driver. While moving the driver's seat forward using the mechanism and adjusting the seat cushion installation height and seating surface angle, it is possible to match the eye point of a short person or the like with the appropriate eyeline. Also, by raising the movable floor part of the floor lifting mechanism in response to the forward movement of the driver's seat, the optimum position of the sole (the palm ball part) can be used as a stepping point for the operation pedal such as an accelerator pedal. There is an advantage that it can be brought into contact with each other accurately and the operability of the operation pedal can be maintained in a good state.

  As disclosed in the specification of Patent Document 1, an operation pedal including an accelerator pedal that is depressed by the driver's right foot and a footrest that supports the passenger's left foot are provided in the front portion of the driver seat. If the interference avoiding part cut out so as to avoid the interference with the footrest is provided in the side part of the movable floor part in the vehicle in which the left and right sides are arranged side by side, the footrest is obstructed. There is an advantage that the movable floor portion can be displaced up and down.

  However, as described above, the movable floor portion on which the driver puts the pedal operation foot (usually the right foot) is driven up and down by the floor lifting mechanism, and the footrest on which the non-pedal operation foot (usually the left foot) is placed When it is configured to be fixedly installed on the floor panel, it is inevitable that an unbalance occurs in the support state of the left and right feet according to the up-and-down displacement of the movable floor portion, and the driver is likely to feel uncomfortable. There was a problem.

  On the other hand, as disclosed in the specification of the above Japanese Patent Application No. 2009-1000068, a movable pedal member of an accelerator pedal is mounted on a floor mat that is installed so as to cover an upper surface of a floor panel positioned in front of the driver's seat. In the case where an inclined surface portion is formed by tilting the upper surface of the buttocks placement area on which the driver's buttocks are placed to the front upward, the sole dimension is larger than that of the average height person. A small short person places the heel part of the pedal operation foot on the front side of the inclined surface part, so that the heel part placement part of the pedal operation foot can be positioned upward. Therefore, without providing a complicated lifting mechanism, it is possible to prevent the buttocks of the pedal operation foot from being separated from the pedal floor surface and perform stable pedal operation. In addition, since there is no extreme difference in the height of the buttocks between the driver's pedal operating foot and the non-pedal operating foot, the driver can be prevented from feeling uncomfortable.

  However, if the upper surface of the inclined surface portion is inclined at a steep angle, the heel portion of the pedal operation foot cannot be stably placed on the inclined surface portion, and the heel portion during pedal operation is along the inclined surface portion. In order to easily slip off, it is necessary to keep the inclination angle below a certain value. For this reason, the effect by providing the inclined surface portion cannot be sufficiently exhibited, and at least one of a short stature with a small sole dimension and a tall person with a large sole dimension compared to an average height person I had to operate the pedal with an unnatural posture.

  In the present invention, in view of the above circumstances, by appropriately adjusting the driving posture with a simple configuration, a significant difference occurs in the support state of the pedal operation foot and the non-pedal operation foot of the driver, and the driver feels uncomfortable. An object of the present invention is to provide a vehicular driving posture adjusting device that allows a driver to properly operate an operation pedal while suppressing the receiving.

  According to the first aspect of the present invention, an operation pedal that is depressed by a driver is disposed at a front portion of a driver seat installed on a floor panel of a passenger compartment, and an occupant has a foot on the side. A vehicle driving posture adjusting device in which a footrest to be mounted is arranged side by side, and when the operation pedal is stepped on, the pedal is moved up and down to displace the heel portion mounting area on the floor panel on which the heel portion of the pedal operation foot is placed In addition to providing a floor height adjusting means for adjusting the buttocks placement height of the operating foot, the driver seat adjusts the relationship between the seat cushion forming the seating surface and the left and right thighs of the occupant Seat cushion adjusting means is provided.

  According to a second aspect of the present invention, in the vehicle driving posture adjusting device according to the first aspect, the portion of the seat cushion located on the footrest side can be more easily deformed than the portion located on the operation pedal side. It is configured.

  The invention according to claim 3 is the vehicle driving posture adjusting device according to claim 1 or 2, wherein the installation height of the part located on the footrest side of the seat cushion and the installation height of the part located on the operation pedal side Are different.

  According to a fourth aspect of the present invention, in the vehicular driving posture adjusting device according to any one of the first to third aspects, the front / rear length of the portion located on the footrest side of the seat cushion and the front / rear length of the operation pedal side Are different.

  The invention according to claim 5 is the vehicle driving posture adjusting device according to any one of claims 1 to 4, wherein the seat cushion adjusting means is configured to set an installation angle of a portion located on the footrest side of the seat cushion. It has a function to adjust.

  A sixth aspect of the present invention is the vehicle driving posture adjusting device according to any one of the first to fifth aspects, wherein the heel portion of the pedal operation foot is placed when the operation pedal is depressed. The upper buttock mounting region is provided with an inclined surface portion inclined upward.

  In the invention according to claim 1, since the seat cushion adjusting means for adjusting the relationship between the seat cushion forming the seating surface of the driver seat and the left and right thighs of the occupant is provided, the driving of the floor height adjusting means is performed. Suppresses the unbalanced state of support between the right foot whose heel placement height moves up and down in response to the force and the left foot on which the sole of the foot rests on the footrest, which makes the driver feel uncomfortable There is an advantage that can be effectively prevented.

  In the invention according to claim 2, the seating surface is formed by allowing the left side portion located on the footrest side of the seat cushion to be easily deformable as compared with the right side portion located on the operation pedal side including an accelerator pedal or the like. Since the seat cushion and the right and left thighs of the occupant are adjusted, the right foot whose heel placement height moves up and down according to the driving force of the floor portion height adjusting means, and the footrest There is an advantage that it is possible to effectively prevent the driver from feeling uncomfortable with a simple configuration by suppressing the unbalanced support state with the left foot on which the foot sole is placed.

  In the invention according to claim 3, when the upper surface of the left part located on the footrest side of the seat cushion is positioned below the right part, the thigh of the left foot is positioned below the right foot In this case, it is possible to suppress the reaction force greater than the right foot from acting on the left foot from the seat cushion, thereby effectively preventing the driver from feeling uncomfortable.

  In the invention according to claim 4, by setting the front-rear length of the left side portion located on the footrest side of the seat cushion to be shorter than the right side portion located on the operation pedal side, the thigh of the left foot is compared with the right foot. Even in the case of being positioned below, there is an advantage that it is possible to effectively prevent a repulsive force acting on the left foot from the seat cushion more than the right foot.

  In the invention according to claim 5, the left side portion of the seat cushion is oscillated and displaced when, for example, a difference occurs in the installation state of the left and right feet according to a difference in the height of the buttocks on both the left and right feet. By adjusting the installation angle of the left side part, the distance between the thighs of the left and right feet and the seat cushion seat surface can be maintained constant, and thereby the repulsive force received from the seat cushion can be left and right unbalanced. There is an advantage that it is possible to effectively prevent a sense of incongruity caused by becoming.

  In the invention which concerns on Claim 6, since the inclined surface part which inclined forward was provided in the collar part mounting area | region on a floor panel, while suppressing the raising / lowering displacement amount of the said collar part mounting area | region becoming large, on average Even if the height of the sole is small or the height of the sole is small, the ankle angle and the inclination angle of the sole may be greatly deviated from the appropriate angle. There is an advantage that the height of placing the buttocks of the pedal operation foot can be adjusted so that the pedal can be operated in an appropriate posture.

It is explanatory drawing which shows 1st Embodiment of the driving | running | working attitude | position adjustment apparatus for vehicles which concerns on this invention. It is a rear view which shows the specific structure of a floor part height adjustment means. It is the III-III sectional view taken on the line of FIG. It is a disassembled perspective view which shows the specific structure of a floor part height adjustment means. It is side surface sectional drawing which shows the state which raised the movable floor part. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII 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 XX sectional view taken on the line of FIG. It is side surface sectional drawing which shows the specific structure of an inclination angle adjustment mechanism. It is a plane sectional view showing the concrete composition of an inclination angle 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 perspective view which shows the specific structure of a driver's seat. It is explanatory drawing which shows the sitting state of an average height person. It is explanatory drawing which shows the average height person's buttocks mounting state. It is explanatory drawing which shows the sitting state of a tall person. It is explanatory drawing which shows a driver | operator's sitting state. It is explanatory drawing which shows the effect | action of the driving posture adjustment apparatus for vehicles which concerns on this invention. It is a top view which shows the modification of a seat cushion. FIG. 7 is a view corresponding to FIG. 6 showing a modification of the footrest. It is side surface sectional drawing which shows 2nd Embodiment of the driving posture adjustment apparatus for vehicles which concerns on this invention. It is side surface sectional drawing which shows 3rd Embodiment of the driving | running posture adjustment apparatus for vehicles which concerns on this invention. FIG. 20 is a view corresponding to FIG. 19 illustrating a state in which the movable floor portion is raised. It is side surface sectional drawing which shows 4th Embodiment of the driving | operation attitude | position adjustment apparatus for vehicles which concerns on this invention.

  1 to 4 show a first embodiment of a vehicle driving posture adjusting apparatus according to the present invention. In this vehicle, a front / rear position adjusting mechanism 2 that adjusts the front / rear position by sliding and disposing the seat cushion 1a of the driver's seat 1 disposed in the passenger compartment, and an inclination angle for adjusting the inclination angle of the seat cushion 1a. A sheet adjustment mechanism having an adjustment mechanism 3 is provided.

  In front of the driver's seat 1 is a so-called organ-type pedal for operating a vehicle driving source such as an engine or a motor, which is depressed by a driver's pedal operating foot (right foot) and has a lower end supported as a fulcrum. An accelerator pedal 4 that swings and displaces, and a brake pedal 5 and a clutch pedal 6 that are so-called suspension pedals that swing and displace with the upper end as a fulcrum are disposed. Further, a footrest 7 for supporting the other foot of the driver, that is, the non-pedal operating foot (left foot) is juxtaposed on the side of each of the pedals 4 to 6, that is, on the central side in the vehicle width direction.

  A dash panel 8 that partitions the engine room and the vehicle compartment is installed in the front part of the vehicle compartment. A substantially flat floor panel 9 is connected to the lower end portion of the dash panel 8 so as to extend to the rear side of the vehicle body via a kick-up portion inclined downward. On the upper surface of the floor panel 9, there is a backing auxiliary material 11 mainly composed of a Mel sheet, felt material, glass wool or the like having vibration-proofing, sound-insulating and heat-insulating functions, and a surface layer material 12 made of a pile ground covering the upper surface. A floor mat 13 provided with is installed.

  Then, in the heel part placement region of the pedal operation foot located on the rear side of the operation pedal including the accelerator pedal 4 and the clutch pedal, which is depressed by the driver's right foot, 13.5 ° to 23 ° with respect to the horizontal line. An inclined surface portion 14 inclined forwardly at an inclination angle within a range of 5 °, for example, an inclination angle α of 20 °, is provided, and at least a part of the inclined surface portion 14 is moved up and down to displace the heel portion of the pedal operation foot A floor height adjusting means 15 for adjusting the height is provided.

  The accelerator pedal 4 includes a movable pedal member 17 that swings and displaces with the lower hinge part 16 as a fulcrum according to a driver's stepping operation, and a pedal base member 18 that fixes the movable pedal member 17 to a support base 19 described later. It has. Further, the accelerator pedal 4 detects a biasing member 20 made of a compression coil spring or the like that biases the movable pedal member 17 toward the rear side of the vehicle, and a swing displacement of the movable pedal member 17 to detect the displacement of the accelerator pedal 4. And an accelerator pedal operation detector for outputting a detection signal to the controller.

  The movable pedal member 17 of the accelerator pedal 4 is made of a synthetic resin plate, a metal plate, or the like, and has a stepped portion formed of a curved surface protruding while curving in an arc shape toward the rear side of the vehicle in a side view. 4a is formed. Then, when the driver abuts the sole palm part of the pedal operation foot and pushes it forward, the movable pedal member 17 swings and displaces with the lower hinge part 16 as a fulcrum. It is configured as follows.

  On the back surface of the movable pedal member 17, a protrusion 22 that abuts against a stopper portion 21 provided on the front upper surface of the pedal base member 18 and restricts the swing range of the movable pedal member 17 toward the front side, and By engaging with an upper end support portion 23 that supports the upper end portion of the urging member 20 and a locking hook portion 24 provided on the upper surface of the center portion of the pedal base member 18, the movable pedal member 17 is swung backward. A retaining portion 25 that restricts the moving range and a pivot portion 27 of the operating rod 26 that constitutes the accelerator pedal operation detecting portion are provided.

  The pedal base member 18 of the accelerator pedal 4 has a fixed substrate 28 that is bolted to the support base 19 of the floor height adjusting means 15. On the upper surface of the fixed substrate 28, an accommodating portion 30 of a control box 29 provided with a linear sensor constituting the accelerator pedal operation detecting portion, and a lower end supporting portion 31 for supporting the lower end portion of the urging member 20 are provided. A guide portion 33 is provided which slidably supports a connecting member 32 made of a flexible linear member connected to the lower end portion of the operation rod 26.

  A coupler 34 for connecting a harness (not shown) to the control box 29 is attached to the front surface of the accommodating portion 30 of the control box 29, and a stopper portion with which the protrusion 22 of the movable pedal member 17 abuts. 21 protrudes from the upper surface. Further, a locking hook portion 24 is provided on the front side of the guide portion 33 so that the retaining portion 25 of the movable pedal member 17 is locked, and a movable pedal is disposed at the rear end portion of the fixed substrate 28. A support bracket 35 that supports the lower end hinge portion 16 of the member 17 is formed.

  When the movable pedal member 17 of the accelerator pedal 4 is rotatably supported by the support bracket 35 of the pedal base member 18 at the hinge shaft of the lower end hinge portion 16, the urging force of the urging member 20 is normally applied. Accordingly, it is held at a non-operation position inclined upward at a predetermined angle. The lower end hinge portion 16 of the movable pedal member 17 is disposed on the front side of the movable floor portion 36 of the floor height adjusting means 15 described later.

  Then, for example, as shown in FIG. 3, a tall person T who has placed the heel part Kt of the pedal operation foot on the inclined surface portion 14, the lion ball part Bt of the pedal operation foot is placed on the movable pedal member 17. When the driver depresses the movable pedal member 17 in a state where it is in contact with the center position of the stepped portion 4a, the movable pedal member 17 supports the lower end hinge portion 16 against the biasing force of the biasing member 20. It is driven so as to swing and displace to the front side of the vehicle. The driving force of the movable pedal member 17 is transmitted to the linear sensor of the control box 29 via the operation rod 26 and the connecting member 32, whereby the operation amount of the movable pedal member 17 is detected, and the detection signal is the control box. 29 is output to the engine control unit or the like via the coupler 34 and a harness (not shown).

  As shown in FIG. 4, the floor height adjusting means 15 is supported by a support pedestal 19 fixed on the floor panel 9 positioned in the front portion of the driver seat 1, and is movably supported by the support pedestal 19. It has a movable floor portion 36 and a lift drive portion 37 that drives the movable floor portion 36 up and down. A fan-shaped portion 38 is formed on the left side of the support pedestal 19 so as to have a 1/4 conical arc shape when seen in a plan view, and tilts forward when viewed from the side, and rises forward and when viewed from the rear. Is provided.

  The movable floor portion 36 includes a pair of left and right side plates 39 formed in a trapezoidal shape in a side view, a front plate 40 installed so as to cover the front portions of the left and right side plates 39, and upper surfaces of the left and right side plates 39. And an upper surface plate 41 installed so as to connect the parts. The inclined surface portion 14 is configured by installing the rear surface portion of the upper surface plate 41 in a state where the upper surface plate 41 is inclined forward and upward. Further, protrusions 42 and 43 protrude from the left and right side portions of the front plate 40.

  The support pedestal 19 has a screw shaft 44 rotatably supported and a guide bar 45 protruding therefrom. The screw shaft 44 is inserted into and screwed into a screw hole formed in one (projection 42) of the projections 42 and 43 projecting from the front plate 40. , 43, the guide bar 45 is slidably inserted into an insertion hole formed in the other (projection 43).

  The elevating drive unit 37 includes a worm wheel 46 fixed to rotate integrally with the screw shaft 44, and a drive motor 48 having a worm gear 47 for rotating the worm wheel 46 fixed to the output shaft. ing. When the driver seated on the driver's seat 1 adjusts the front-rear position and the like of the driver's seat 1 according to the physique, the drive motor 48 is operated in conjunction with the seat position adjusting mechanism, thereby The worm wheel 46 and the screw shaft 44 are driven to rotate, and the protrusion 42 is screwed to move the movable floor portion 36 up and down from the lower position shown in FIG. 3 to the upper position shown in FIG. Yes.

  The pedal base member 18 of the accelerator pedal 4 is pre-assembled and sub-assembled on the support base 19 of the floor height adjusting means 15 having the support base 19, the movable floor 36, the raising / lowering drive part 37 and the like. Thus, they are configured so as to be integrally assembled to the vehicle body in a unitized state. Specifically, the auxiliary material 11 of the floor mat 13 is formed with a notch 49 for disposing the support pedestal 19 and the movable floor 36, and the floor portion height adjustment is provided in the notch 49. A support base 19 of the means 15 is arranged and fixed to the floor panel 9. Further, the surface layer material 12 of the floor mat 13 is installed so as to cover the upper surface of the movable floor portion 36 and is locked by an adhesive or a locking tool.

  The surface layer material 12 is provided with an expansion / contraction part 50 made of a bellows-like body that expands and contracts in accordance with the vertical displacement of the movable floor part 36 above the rear end part of the movable floor part 36. The expansion / contraction of the expansion / contraction portion 50 allows the space portion (floor mat) formed below the movable floor portion 36 to be either in the upper position shown in FIG. 5 or the lower position in FIG. 13, so that the installation portion of the movable floor portion 36 is covered with the surface layer material 12 so that the notched portion 49) is not exposed to the outside. Biting and the like are surely prevented.

  A footrest 7 is installed on the left side of the movable floor portion 36, and a first bending portion 51 that is curved so as to protrude toward the driver's seating portion (seat cushion 1a) is provided on the footrest surface. A second curved portion 52 that is curved so as to be recessed toward the front side of the vehicle in a side view is provided on the lower side thereof.

  The first curved portion 51 is formed by an arcuate convex surface portion curved with a radius of curvature R1 of about 150 mm to 200 mm when viewed from the side, and the total length is set to about 120 mm. Further, as shown in FIG. 7, the first curved portion 51 of the footrest 7 has a curvature radius R11 of about 150 mm to 350 mm so as to protrude toward the driver's seat (seat cushion 1a) in plan view. Is formed into a spherical curved surface.

  The second curved portion 52 is formed by an arc-shaped concave surface portion curved with a radius of curvature R2 of 100 mm to 150 mm when viewed from the side, and the total length thereof is set to about 100 mm. As a result, the passenger compartment floor surface located behind the footrest 7, specifically, the thumb ball B1 of the left foot with the buttocks placed on the floor mat 13 is positioned above the second bending portion 52. The first bending portion 51 is in contact with the first bending portion 51.

  As shown in FIGS. 8 to 10, the driver seat 1 is provided with a pair of left and right seat slide lower rails 61 that support the seat cushion 1 a so as to be movable back and forth, and the seat slide lower rail 61. The seat slide upper rail 62 is supported so as to be slidable. The seat slide lower rail 61 is made of C-type steel or the like having an open upper surface, and is attached integrally to the front and rear ends by welding brackets 63 and 64, for example. The mounting brackets 63 and 64 are fixed to the upper surface of the cross member 60 via fastening bolts or the like, so that the seat slide lower rail 61 is installed on the floor panel 9 in a state where it is slightly inclined upward. ing.

  In the left and right seat slide lower rails 61, as shown in FIG. 10, a rotary shaft 65 made of a screw shaft is rotatably installed, and a drive motor 66 is provided between the front end portions of the both seat slide upper rails 62. The drive shaft 67 that is rotationally driven by and the support member 68 that rotatably supports the drive shaft 67 is installed so as to extend in the vehicle width direction. Further, at both left and right end portions of the drive shaft 67, there are provided power transmission portions 69 composed of a bevel gear mechanism, a worm wheel gear mechanism, or the like that transmits the drive force to the rotary shaft 65.

  The seat slide lower rail 61, the seat slide upper rail 62, the rotary shaft 65, the drive motor 66, the drive shaft 67, and the power transmission unit 69, and a nut block fixed to the bottom of the seat slide lower rail 61 and screwed into the rotary shaft 65. 70 constitutes a front / rear position adjusting mechanism 2 that adjusts the front / rear position of the driver's seat 1 by slidably displacing the seat cushion 1a of the driver's seat 1 along the seat slide lower rail 61.

  For example, when a front / rear adjustment switch (not shown) is operated in the forward direction, a control signal for normal rotation of the drive motor 66 is output, and the drive motor 66 rotates forward in accordance with the control signal. A driving force in the direction of moving the seat cushion 1a forward is transmitted to the driving shaft 67, the power transmission unit 69, and the rotating shaft 65. The rotary shaft 65 is rotationally driven by the driving force input from the power transmission unit 69 while being supported by a nut block 70 fixed to the bottom of the seat slide lower rail 61, and is screwed forward of the vehicle. As a result, the seat cushion 1a of the driver's seat 1 together with the seat slide upper rail 62 is driven to the front side of the vehicle.

  On the other hand, when the front / rear adjustment switch is operated in the backward direction, a control signal for reversely rotating the drive motor 66 is output, and the drive motor 66 reversely rotates in response to the control signal, whereby the seat cushion 1a. The driving force in the direction of reversing the vehicle is transmitted to the drive shaft 67, the power transmission unit 69, and the rotary shaft 65, and the rotary shaft 65 is driven in reverse and screwed to the rear side of the vehicle body. 62 and the seat cushion 1a of the driver's seat 1 are configured to be driven rearward of the vehicle body.

  Further, since the seat slide lower rail 61 is installed on the vehicle body floor in a state where it is inclined forwardly upward, the seat slide upper rail 62 and the seat cushion 1a of the driver's seat 1 are attached to the seat slide upper rail 62 by the front / rear position adjusting mechanism 2. When the vehicle is moved to the front side of the vehicle along the seat slide lower rail 61, the seat cushion 1a is pushed upward in conjunction with this movement. On the contrary, when the seat slide upper rail 62 and the seat cushion 1a of the driver's seat 1 are moved to the rear side of the vehicle body along the seat slide lower rail 61 by the front / rear position adjusting mechanism 2, the seat cushion is interlocked therewith. 1a descends.

  The seat slide upper rail 62 is provided with an inclination angle adjusting mechanism 3 that changes the inclination angle of the seat cushion 1a of the driver's seat 1. As shown in FIGS. 8 and 9, the inclination angle adjusting mechanism 3 is installed on the upper surface of the front part of the cushion frame 71 and the seat slide upper rail 62 provided on the left and right side portions of the seat cushion 1a. A front bracket 72 and a front link 73 that support the front end of the frame 71, a rear bracket 74 that is installed on the rear upper surface of the seat slide upper rail 62 and supports the rear portion of the cushion frame 71, and a triangular rear link 75, a connecting shaft 76 that connects the rear end portions of the left and right rear links 75 and the rear lower ends of the cushion frames 71, and a central upper surface of the seat slide upper rail 62. A central link 77 for transmitting driving force and a central bracket 78 for supporting the central link 77; A connecting link 79 which connects the upper portion of the central link 77 to the front end of the rear link 75, following the drive shaft 80, and a drive lever 81 and the tilt driving unit 82.

  The central link 77 is fixed to a drive shaft 80 whose lower end extends in the vehicle width direction, and is rotatably supported by the central bracket 78 via the drive shaft 80. A drive lever 81 that rotates and displaces the drive shaft 80 is fixed to the drive shaft 80. Further, the central bracket 78 provided on one of the pair of left and right seat slide upper rails 62 (the outer side in the vehicle width direction) has a tilt drive unit 82 that drives the drive lever 81 fixed to the drive shaft 80. Is provided.

  As shown in FIGS. 11 and 12, the tilt drive unit 82 includes a screw shaft 84 whose front end portion is connected to the tip end portion (lower end portion) of the drive lever 81 via a connection pin 83, and the screw shaft 84. And a guide bracket 87 fixed to the front surface of the gear mechanism 86, and a base end portion of the guide bracket 87 is interposed between the central bracket 78 and the support bracket 88. It is supported by. The gear mechanism 86 is provided with a worm gear 89 fixed to the output shaft 85a of the drive motor 85 and a worm nut 90 that is rotationally driven by the worm gear 89. A screw hole that is screwed into the shaft 84 is formed.

  Then, as the worm nut 90 is rotationally driven by the driving force input from the drive motor 85 via the worm gear 89, the screw shaft 84 screwed to the worm nut 90 is rotated and screw-fed. It has become so. As the screw shaft 84 is screwed, the connecting pin 83 provided at the tip of the screw shaft 84 moves back and forth along the support groove 91 formed in the guide bracket 87, and the driving force thereof is connected to the connecting pin 83. Is transmitted to the drive lever 81 via the rotation, the drive lever 81 is oscillated and displaced, and the drive shaft 80 is rotationally driven.

  Further, as the drive shaft 80 is rotationally driven, the central link 77 is oscillated and displaced, and the driving force is transmitted to the rear link 75 via the connecting link 79, and the rear link 75 is oscillated. In addition to the dynamic displacement, the tilt angle of the seat cushion 1a is adjusted by the swinging displacement of the front link 73 corresponding thereto. That is, at the retracted position where the seat cushion 1a of the driver's seat 1 has moved to the rear side of the vehicle body, the front link 73 and the center link 77 are tilted rearward as shown in FIG. Since the connecting shaft 76 provided at the rear end of the seat cushion is positioned below, the seat surface of the seat cushion 1a is held in a state of being largely inclined backward.

  In the above configuration, when an operation for moving the driver's seat 1 to the front side of the vehicle is performed by the front / rear adjustment switch, the drive motor 85 of the tilt angle adjustment mechanism 3 is adjusted based on the preset drive characteristics. A control signal for driving the rotation is output from a control means (not shown), and the normal driving force of the driving motor 85 is transmitted through the gear mechanism 86, the screw shaft 84, the connecting pin 83, the driving lever 81 and the driving shaft 80 to the central link. 77, the central link 77 shifts from the rearward tilt state to the standing state shown in FIG. Then, as the central link 77 shifts to the standing state, the driving force is transmitted to the rear link 75 via the connecting link 79, and the front end portion of the rear link 75 is pulled to the front side of the vehicle. The connecting shaft 76 provided at the rear end portion of the rear link 75 is raised, and the rear end portion of the seat cushion 1a is driven to be pushed up accordingly.

  Further, since the front link 73 shifts from the rearward tilted state to the upright state in conjunction with the swinging displacement of the rear link 75, the front end portion of the seat cushion 1a is moved forward while being pushed up accordingly. When driven, the seat cushion 1a is displaced from the lower position to the upper position shown in FIG. Furthermore, the backward movement angle of the seat surface according to the upward movement of the seat cushion 1a is set by setting the upward movement amount of the rear end part larger than the upward movement amount of the front end part of the seat cushion 1a. It changes so that it may become small gradually, and it is constituted so that it may approach a horizontal state. Further, the tilt angle of the seat back 1b changes in conjunction with the tilt displacement of the seat cushion 1a, and is displaced so as to approach the vertical state.

  On the other hand, when an operation for moving the driver's seat 1 to the rear side of the vehicle body is performed by the front / rear adjustment switch, the drive motor 85 of the tilt angle adjusting mechanism 3 is driven in reverse based on a preset drive characteristic. A control signal is output from the control means, and the forward drive force of the drive motor 85 is transmitted to the central link 77 via the gear mechanism 86, the screw shaft 84, the connecting pin 83, the drive lever 81 and the drive shaft 80. As a result, the seat cushion 1a is displaced from the upper position to the lower position shown in FIG. 8, and as the seat cushion 1a moves downward, the rearward tilt angle of the seat surface gradually changes, and the seat The back 1b is configured to be largely inclined backward.

  Further, a portion located on the footrest 7 side of the seat cushion 1a, that is, a left portion 54 shown by a broken line in FIG. 14 is configured to be easily deformable as compared with a right portion located on the operation pedal side such as the accelerator pedal 4. ing. Specifically, the footrest side part 54 of the seat cushion 1a is formed of a material that is more flexible than the other parts of the seat cushion 1a, or the thickness of the footrest side part 54 is set smaller than the other parts. For example, when the same pressing load is applied to the footrest side portion 54 and other portions, the footrest side portion 54 is configured to be deformed more greatly than the other portions.

  When the driver sitting on the driver's seat 1 changes to a person with a different height, the driver's seat height, arm length, foot length, etc. change in proportion to the height. Thus, the operability of the driver's eye point seated on the driver's seat 1 and the operation pedal such as the accelerator pedal 4 also changes. Therefore, the driver who newly sits on the driver's seat 1 can grip the steering handle 92 in an appropriate state while maintaining the comfortable posture, and the pedal on the stepping portion 4 a of the movable pedal member 17 constituting the accelerator pedal 4. The front / rear position adjusting mechanism 2 and the tilt angle adjustment so that the lever ball portion of the operation foot can be brought into contact with each other in an appropriate state and the eye point is aligned with the appropriate line L so that the front view can be properly secured. An attempt is made to adjust the front and rear position of the driver seat 1 by operating the mechanism 3.

  Since the driver seat 1 may be seated by drivers having various heights, from a person with a height of 150 cm or less to a person with a height of 190 cm or more, these persons can sit on the driver seat 1 in an easy posture. Therefore, it is necessary to configure so that the driving operation can be performed properly. For example, assuming that the height of the average height person M who is most likely to sit on the driver's seat 1 is 170 cm and statistically analyzing the comfort posture of the average height person M, the following data is obtained. was gotten.

  The comfort posture of the occupant seated on the driver's seat 1 is a seating posture that can maintain the seated state for a long period of time and is suitable for handle operation, pedal operation, and the like. Specifically, as shown in FIG. 15, the ankle angle θ1 of the pedal operation foot is about 85 ° to 95 °, the knee angle θ2 is about 115 ° to 135 °, and the upper body and the thigh from the hip to the shoulder. And the bending angle θ4 is about 95 °. In the case of the average height person M, the appropriate angle of the rhino angle θ3, which is the angle formed by the thighs with respect to the horizontal line, is a value obtained by adding about 1.5 ° to the inclination angle of the seat cushion 1a. This has been confirmed by ergonomic experiments. Further, the elbow angle θ5 at which the steering handle 92 can be properly operated is about 100 ° to 130 °, and the side angle θ6 is about 20 ° to 45 °.

  Therefore, for example, the average height person M sets the ankle angle θ1 to 90 °, the knee angle θ2 to 125 °, the bending angle θ4 between the upper body and the thigh from the hip to the shoulder to 95 °, and When sitting on the driver's seat 1 with the rhino angle θ3 set to 17 °, the eye point Im of the average height person M may be made to coincide with the appropriate line L inclined forward and downward at an angle of about 8 °, for example. The front and rear reference position, the vertical reference height, and the reference inclination angle of the seat cushion 1a are set so as to be able to do so.

  In the standard sitting state of the average height person M, the elbow angle θ5 and the side angle θ6 are set within the above range so that the steering handle 92 can be properly gripped. Further, as shown in FIG. 16, the sole heel part Km of the pedal operation foot is placed at a predetermined position on the inclined surface part 14 which is the rear part of the upper surface plate 41, and the ankle angle θ1 is set to 90 °. In addition, in a state where the inclination angle θ7 of the sole with respect to the horizontal line is set to about 52 °, for example, the proper position of the stepped portion 4a provided on the movable pedal member 17 of the accelerator pedal 4, that is, the middle of the stepped portion 4a The accelerator pedal 4 is disposed at a position where the palm ball portion Bm on the sole can be brought into contact with the response portion.

  In FIG. 15, Hm is the hip point (sitting reference point) of the average height person M seated on the driver's seat 1. Further, in the present embodiment, as shown in FIG. 16, the reference position on which the average height person M places the heel part Km of the pedal operation foot is, for example, on the upper surface plate 41 of the movable floor part 36 at the intermediate lift position. It is set. That is, in the state where the installation height of the movable floor portion 36 is set at an intermediate position in the up-and-down movement range, the heel portion Km of the average height person M is at the substantially center portion (reference position) in the front-rear direction of the top plate 41. The movable floor portion 36 is disposed so as to be placed.

  The sole height dimension of the average height person M is about 255 mm, and the distance from the heel part Km to the lion ball part Bm is about 176 mm. Therefore, the movable pedal member from the reference placement position of the heel part Km. The vertical distance Ym to the stepping portion 4a of 17 is about 139 mm (≈176 mm × sin 52 °). Further, a horizontal distance Xm from the average height M's buttocks Km to the stepped portion 4a of the movable pedal member 17 is about 108 mm (≈176 mm × cos 52 °).

  When the driver sitting on the driver's seat 1 changes from the average height M to a tall T having a height of, for example, 190 cm, as shown in FIG. The hip point Ht located on the seat cushion 1a is moved about 85 mm backward from the front / rear reference position Hm for the average height person M by operating the outer front / rear position adjustment switch, etc. The hip point Hs is moved downward by about 20 mm and the tilt angle of the seat cushion 1a is changed so that the rhino angle θ3 is about 20.0 °.

  In this way, if the upper body of the tall person T having a long arm compared to the average tall person M is moved backward, the eye point It of the tall person T having a high sitting height compared to the average tall person M is obtained. By moving to the lower rear side of the vehicle body, it can be matched with the appropriate line L, and the steering handle 92 can be gripped in an appropriate state by appropriately changing the elbow angle θ5 and the side angle θ6. When a telescopic mechanism and a tilt mechanism that support the installation position and the installation angle of the steering handle 92 are provided, the tall person T greatly changes its elbow angle θ5 and side angle θ6. The steering handle 92 can be gripped without causing the above-mentioned comfort posture.

  Further, the back surface of the tall person T tends to rotate clockwise in the side view with the lion ball Bt as a fulcrum according to the backward movement and the downward movement of the seat cushion 1a. By lowering the movable floor 36 and reducing the knee angle θ2 to about 120 °, the ankle angle θ1 of the pedal operation foot is maintained at 90 ° and the inclination angle θ7 of the sole is an appropriate angle of about 52 °. In this way, the palm ball part Bt of the tall person T can be brought into contact with the appropriate position of the stepped part 4 a of the accelerator pedal 4.

  Specifically, since the sole dimension of the tall person T is about 285 mm and the distance from the heel part Kt to the lion ball part Bt is about 198 mm, as shown in FIG. The vertical distance Yt from the mounting position of the buttocks Kt of the tall person T to the stepped portion 4a of the movable pedal member 17 is about 156 mm (≈198 mm × sin 52 °), and the same distance Ym (139 mm) of the average height M ) About 17 mm longer. That is, the height placement position of the tall person T is about 17 mm lower than the average tall person M. The horizontal distance Xt from the heel portion Kt of the tall person T to the stepped portion 4a of the movable pedal member 17 is about 122 mm (≈198 mm × cos 52 °), and the same distance Xm (108 mm) of the average tall person M. Is about 14 mm longer.

  As described above, there is a difference of about 17 mm between the height placement position of the tall person T and the height placement position of the average height person M, and the position of the height placement position in the front-rear direction of both of them. There is a difference of about 14 mm between them. Therefore, in the state where the tall person T places the heel part Kt of the pedal operation foot on the movable floor portion 36, the lever ball part Bt of the pedal operation foot is accurately set with respect to the appropriate position of the stepping portion 4a. In order to make contact, the movable part is moved based on a difference of 17 mm in the height of the collar part placement and a vertical difference of −5 mm (≈−14 mm × tan 20 °) corresponding to the difference of 14 mm in the longitudinal direction of the collar part placement position. It is necessary to lower the installation position of the floor portion 36 by about 12 mm (≈17 mm−5 mm).

  That is, in the present embodiment in which the inclination angle α of the inclined surface portion 14 is set to 20 °, the movable floor portion 36 is lowered to the vicinity of the lowermost position set about 12 mm below the reference position. As a result, the rising amount of the movable floor portion 36 is set to approximately zero. In this way, the movable floor portion 36 is positioned approximately 12 mm below the reference position for the average height person M, so that the tall person T places the heel part Kt on the movable floor portion 36. In addition, the pedal operation can be appropriately performed in a state where the lever ball portion Bt of the pedal operation foot is in contact with the stepping portion 4a of the accelerator pedal 4.

  On the other hand, when the driver sitting on the driver's seat 1 changes from an average stature M to a short stature S, such as a female driver having a height of 150 cm, for example, as shown in FIG. S moves the hip point Hs located on the seat cushion 1a forward by about 105 mm from the front / rear reference position Hm for the average height M by operating a front / rear position adjustment switch (not shown). In conjunction with this, the hip point Hs is moved upward by about 25 mm, and the tilt angle of the seat cushion 1a is changed so that the rhino angle θ3 is about 10.5 °.

  In this way, if the upper body of the short stature S with short arms compared to the average height M is moved forward, the eye point Is of the short stature S having a low sitting height compared to the average height M can be obtained. By moving the front part upward, the steering wheel can be made to coincide with the appropriate line L, the elbow angle θ5 and the side angle θ6 are appropriately changed, or the telescopic mechanism and the tilt mechanism (not shown) are operated to operate the steering. By changing the installation height and installation angle of the handle 92, the steering handle 92 can be gripped in an appropriate state.

  Further, the foot sole of the short stature S tends to rotate counterclockwise as viewed from the side with the lion ball Bs as a fulcrum as the seat cushion 1a moves forward and upward. By raising the movable floor 36 and increasing the knee angle θ2 to about 130 °, the ankle angle θ1 of the operating foot is maintained at 90 °, and the inclination angle θ7 of the sole is set to an appropriate angle (52 °). Thus, the short stature S can make the lever ball portion Bs of the operating foot abut on the appropriate position of the stepping portion 4 a of the accelerator pedal 4.

  Specifically, since the sole dimension of the short stature S is about 225 mm and the distance from the heel part Ks to the lion ball part Bs is about 155 mm, as shown in FIG. The vertical distance Ys from the placement position of the buttocks Ks of the tall person S to the stepped portion 4a of the movable pedal member 17 is about 122 mm (≈155 mm × sin 52 °), and the same distance Ym (139 mm) of the average height person M. ) By 17 mm. Correspondingly, the height of the buttocks on the short stature S is 17 mm higher than the average stature M. Note that the horizontal distance Xs from the buttocks Ks of the short stature S to the stepped portion 4a of the movable pedal member 17 is about 95 mm (≈155 mm × cos 52 °), and the same distance Xm ( 108 mm) is about 13 mm shorter.

  There is a difference of about 17 mm between the height of the buttocks S of the short stature S and the height of the average height M of the buttocks. There is a difference. Therefore, in the state where the short stature S places the heel part Ks of the pedal operation foot on the movable floor part 36, the lever ball part Bs of the pedal operation foot is accurately set to the appropriate position of the stepping part 4a. In order to make contact with the flange, the height difference of 17 mm and the vertical difference of −4 mm (≈−13 mm × tan 20 °) corresponding to the difference between the front and rear of the flange placement position of 13 mm are as described above. It is necessary to raise the installation position of the movable floor portion 36 by about 13 mm (= 17 mm-4 mm).

  That is, in the present embodiment in which the inclination angle α of the inclined surface portion 14 is set to 20 °, the movable floor portion 36 is raised to the uppermost position set about 13 mm above the reference position. Thus, the amount of movement of the movable floor 36 from the lowermost position is set to approximately 25 mm. In this way, the movable floor portion 36 is positioned approximately 13 mm above the reference position for the average stature person M, so that the short stature person S places the heel portion Ks on the movable floor portion 36. In addition, the pedal operation can be properly performed in a state where the lever ball portion Bs of the pedal operation foot is in contact with the stepping portion 4a of the accelerator pedal 4.

  As described above, an operation pedal including an accelerator pedal 4 or the like that is depressed by the driver is disposed in front of the driver seat 1 installed on the floor panel 9 of the passenger compartment, and an occupant on the side thereof. In the vehicular driving posture adjusting apparatus in which the footrest 7 on which the foot is placed is arranged side by side, the buttocks placement area on the floor panel 9 on which the driver's buttocks are placed when the operation pedal is depressed is moved up and down. The floor part height adjustment means 15 which adjusts a driver | operator's buttocks mounting | wearing height is provided, and the relationship between the seat cushion 1a which forms the seating surface of the said driver's seat 1, and a passenger | crew's right and left thigh Since the driver's pedal operation foot and non-pedal operation foot support state is significantly different by adjusting the driving posture appropriately with a simple configuration, the driver is uncomfortable. While suppressing from receiving, there is an advantage that the operation pedal consisting of an accelerator pedal 4, etc. driver can properly operate.

  That is, in the first embodiment, the floor height adjusting means 15 is provided with the movable floor portion 36 that is supported by the floor panel 9 so as to be movable up and down, and the lift drive portion 37 that drives the movable floor portion 36 up and down. Since the movable floor portion 36 is displaced up and down by the lift drive unit 37, the height of the buttocks placement of the right foot that is operated to depress the operation pedal is adjusted. Even if you are a short person S with a small size or a tall person T with a large sole size, you must perform a delicate pedal operation with the buttocks of the pedal operation foot (right foot) placed on the floor surface. Therefore, there is an advantage that the accelerator pedal 4 that is desired can be properly operated with a simple configuration.

  And like the said 1st Embodiment, the left side part 54 located in the footrest 7 side of the seat cushion 1a is comprised easily deformable compared with the right side part located in the operation pedal side which consists of the accelerator pedal 4 grade | etc.,. Accordingly, since the relationship between the seat cushion 1a that forms the seating surface and the left and right thighs of the occupant is adjusted, the height of the heel mount is increased or decreased according to the operation of moving the movable floor portion 36 up and down. The foot angle between the right foot that moves to the left foot and the left foot on which the back of the foot rests on the footrest 7 is prevented from becoming unbalanced, thereby effectively preventing the driver from feeling uncomfortable. is there.

  That is, as shown in FIG. 18, the height of the buttocks on the right foot Rl for operating the accelerator pedal 4 or the like is increased on the footrest 7 as shown in FIG. Positioning above the left foot Ll on which the back surface is placed causes a difference in the heel mounting height between the left and right feet, resulting in a difference in the thigh angle θ3 between the left and right feet, and the thigh of the left foot Ll. It is inevitable that the lower surface of the part is pressed against the upper surface of the seat cushion 1a. For this reason, in the said embodiment, the left side part 54 of the seat cushion 1a with which the left leg Ll is press-contacted is easily formed according to the said press-contact load by forming it with a flexible material compared with the other part of the seat cushion 1a. It is configured to be deformed.

  Accordingly, as shown in FIG. 19, when the lower surface of the left leg Ll is pressed against the left side part 54 of the seat cushion 1a because the thigh of the left leg Ll is positioned lower than the right leg Rl, As a result, the left and right side portions 54 and right side portions of the seat cushion 1a are restrained from being deformed to a greater extent than the left and right side portions, that is, the left and right difference in the repulsive force against the pressure contact load is suppressed. The As a result, even when the movable floor portion 36 is displaced up and down, the height of the heel portion of the left and right feet is different, and the rhino angle θ3 of the left and right feet is correspondingly different. By suppressing the repulsive force received from the cushion 1a from being left and right unbalanced, it is possible to prevent the driver from feeling uncomfortable.

  In addition, the seat cushion 1a which forms a seating surface by easily deforming the left side portion 54 located on the footrest 7 side of the seat cushion 1a as compared with the right side portion located on the operation pedal side including the accelerator pedal 4 and the like. It replaces with the said embodiment comprised so that the relationship with a passenger | crew's right and left thighs may be adjusted, or with this structure, the installation height of the site | part located in the footrest 7 side of the seat cushion 1a, and the site | part located in the operation pedal side A configuration in which the installation height is made different, that is, a configuration in which the upper surface of the left side portion 54 is previously deformed so as to be positioned below the right side portion, as indicated by a broken line in FIG. In such a configuration, even when the thigh of the left foot Ll is positioned below the right foot Rl, a larger repulsive force acts on the left foot Ll from the seat cushion 1a than the right foot Rl. Therefore, there is an advantage that it is possible to effectively prevent the driver from feeling uncomfortable.

  Further, as shown in FIG. 20, instead of the above configuration or together with these configurations, the longitudinal length of the left side portion 54 located on the footrest 7 side of the seat cushion 1a is compared with the right side portion located on the operation pedal side. By setting it short, you may comprise so that the relationship between the seat cushion 1a which forms a seating surface, and a passenger | crew's right and left thigh may be adjusted. Even in this configuration, when the thigh of the left foot Ll is positioned lower than the right foot Rl, it is effective that a larger repulsive force acts on the left foot Ll from the seat cushion 1a than the right foot Rl. Can be prevented. That is, the repulsive force that acts when the driver's thigh is pressed against the seat cushion 1a is prominently generated at the front end portion of the seat cushion 1a. By making the difference between 54 and the right side portion, there is an advantage that it is possible to effectively prevent a sense of incongruity caused by a difference in right and left in the repulsive force.

  In addition, when importance is attached to the operability of the operation pedal including the accelerator pedal 4 or the like, the upper surface of the right side portion located on the operation pedal side of the seat cushion 1a is positioned below the left side portion 54, contrary to the above configuration. Alternatively, the front-rear length of the right portion located on the operation pedal side of the seat cushion 1a is set shorter than the left portion 54 located on the operation pedal side, or the right portion of the seat cushion 1a is set to the left portion 54. You may comprise so that it may deform | transform easily compared with. When configured in this way, when the thigh of the left foot Rl moves up and down greatly during pedal operation, the pedal operation is hindered due to receiving a large repulsive force from the seat cushion 1a. There is an advantage that can be effectively prevented.

  Moreover, in the said embodiment, since the 1st curved part 51 formed in the foot mounting surface of the footrest 7 was formed by the circular-arc-shaped convex surface part curved by the curvature radius R1 of about 150 mm-200 mm seeing from the side surface, The ankle angle .theta.1 between the left foot whose heel placement height moves up and down in accordance with the operation of moving the movable floor portion 36 up and down by the elevating drive unit 37 and the left foot on which the back surface of the foot rests on the footrest 7 is undefined. There are advantages such as effectively preventing the driver from feeling uncomfortable due to the balance.

  That is, as shown in FIG. 18, the height of the buttocks on the right foot Rl for operating the accelerator pedal 4 or the like is increased on the footrest 7 as shown in FIG. By being positioned above the left foot Ll on which the back surface is placed, a difference occurs in the rhino angle θ3 of both the left and right feet corresponding to a difference in the buttocks placement height between the left and right feet. In this case, if the sole angle θ7 of both the left and right feet is maintained at the same angle, the driver feels uncomfortable due to a large difference in at least one of the knee angle θ2 or the ankle angle θ1 of the left and right feet. Is inevitable.

  However, when the first bending portion 51 that is curved to protrude toward the seating portion of the driver is provided on the foot placement surface of the footrest 7 as described above, as shown in FIG. The sole foot angle θ7 of the left foot can be arbitrarily changed by moving the buttocks Kl back and forth in a state where the left foot palm ball portion Bl is in contact with the one curved portion 51. Therefore, by changing the sole foot angle θ7 of the left foot corresponding to the change of the rhino angle θ3, it is possible to prevent a great left / right difference in the ankle angle θ1 or the knee angle θ2 of both feet and to give the driver a sense of incongruity. It is possible to maintain the foot sole 7 in contact with the footrest 7 without any problem.

  In addition, when the curvature radius R1 of the first bending portion 51 is set to be less than 150 mm, the vertical dimension of the first bending portion 51 cannot be sufficiently secured unless the protrusion amount of the first bending portion 51 is increased to some extent. Due to the small vertical dimension of the first bending portion 51, it becomes difficult for a tall person or a short height person to contact the palm ball portion Bl of the left foot with the first bending portion 51, or first In order to increase the protruding amount of the curved portion 51, the footrest 7 needs to be enlarged.

  Further, when the radius of curvature R1 of the first bending portion 51 is set to be larger than 200 mm, it is difficult to ensure a sufficient amount of protrusion of the first bending portion 51. The sole angle θ7 is easily constrained to a constant angle due to the contact surface of the left foot. For this reason, there is a possibility that the function of changing the sole angle θ7 of the left foot corresponding to the change of the rhino angle θ3 may be sufficiently obtained.

  On the other hand, when the curvature radius R1 of the first bending portion 51 in the side view is set in the range of 150 mm to 200 mm as shown in the embodiment, the footrest 7 is not enlarged more than necessary. Regardless of whether the driver seated on the driver's seat 1 is a tall person T or a short person S, the palm ball part Bl of the left foot can be brought into contact with the first bending part 51, and the first By preventing the bottom surface of the left foot from coming into contact with the curved portion 51, it is possible to change the sole angle θ7 of the left foot corresponding to the change of the rhino angle θ3.

  Moreover, in the said embodiment, the 2nd curved part 52 curved so that it might indent below the 1st curved part 51 formed in the foot mounting surface of the footrest 7 toward the front side of a vehicle by a side view. Therefore, it is possible to prevent the heel portion Kl of the left foot from interfering with the vicinity of the lower end portion of the footrest 7. Therefore, when changing the sole angle θ7 of the left foot, it is possible to effectively prevent the situation where the heel portion Kl of the left foot is in contact with the footrest 7 and the sole angle θ7 cannot be adjusted to an appropriate value. There is an advantage that it can be prevented. Note that the radius of curvature R2 of the second curved portion 52 prevents the amount of indentation of the second curved portion 52 from becoming unnecessarily large, while the heel portion Kl of the left foot interferes with the vicinity of the lower end portion of the footrest 7. In order to prevent this, it is desirable to set to 100 mm to 150 mm.

  Further, in the above embodiment, the first bending portion 51 of the footrest 7 is curved with a curvature radius R11 of about 150 mm to 350 mm so as to protrude toward the driver's seating portion in plan view, thereby forming a spherical shape. Since it is formed in a curved surface, based on the length of the driver's foot seated on the driver's seat 1 or the seating characteristics, etc., as shown in FIG. Even when the inclination angle of the left foot with respect to the extending reference line changes, there is an advantage that the palm ball portion Bl of the left foot can be brought into contact with the first bending portion 51 in an appropriate state.

  In particular, as shown in the above-described embodiment, when the radius of curvature R11 of the first bending portion 51 in plan view is set within a range of 150 mm to 350 mm, the amount of protrusion of the first bending portion 51 in plan view increases. The footrest 7 can be prevented from becoming large due to the fact that the driver sitting on the driver's seat 1 increases or decreases the extension angle θl of the left foot in plan view. It is possible to make the palm ball portion Bl of the left foot abut on the first bending portion 51.

  In the above embodiment, the example in which the footrest 7 is installed in the direction orthogonal to the reference line extending in the front-rear direction of the vehicle body has been described. However, the installation direction of the footrest 7 is inclined in accordance with the extension angle θl of the left foot. By doing so, you may set so that the sole mounting surface of the said footrest 7 may face the driver | operator's seating part side.

  In addition, although it is possible to form the upper surface of the buttock mounting region on the floor panel 9 in a horizontal plane, as shown in the first embodiment, the rear of the upper surface plate 41 provided on the movable floor portion 36. In the case where the inclined surface portion 14 is provided in the rear region of the flange mounting region by inclining the portion forward, the increase in the vertical displacement amount of the movable floor portion 36 is suppressed. The ankle angle θ1 and the inclination angle θ7 of the sole are greatly deviated from the appropriate angles for both the short stature S with a small sole dimension and the tall T with a large sole dimension compared to the average height person M. Thus, there is an advantage that the height of placing the heel portion of the pedal operation foot can be adjusted so that the pedal operation can be performed in an appropriate posture without causing such a situation.

  That is, as shown in the first embodiment, the heel portion placement position of the short stature S is positioned about 13 mm forward compared to the average stature M, and the inclined surface portion 14 is positioned at an angle of about 20 °. In the case of tilting forward, the amount of upward movement can be reduced by about 4 mm (≈13 mm × tan 20 °), compared to the case where the buttock mounting region on the floor panel 9 is formed horizontally. . Further, in the case of a tall person T configured to position the buttock placement position about 14 mm rearward compared to the average height person M, the buttock placement area on the floor panel 9 is formed horizontally. Compared to the case, the downward movement amount of the inclined surface portion 14 can be reduced by about 5 mm (≈14 mm × tan 20 °), and between the short stature person S and the high stature person T, the buttocks placement area is horizontal. Compared with the case where it forms in, up and down movement amount can be reduced 9 mm in total.

  Moreover, in the case where the inclined surface portion 14 inclined upward is provided in the buttock mounting region on the floor panel 9 as described above, the heel portion of the pedal operation foot is mounted on the inclined surface portion 14. In this state, when the frontal collision occurs, the inclined surface portion 14 can suppress the heel portion of the pedal operation foot from moving forward according to the impact load. There is also an advantage that the safety of the system can be effectively improved.

  When the inclination angle α of the upper surface of the inclined surface portion 14 is larger than 23.5 °, the heel portion of the pedal operation foot placed on the inclined surface portion 14 slides backward according to the reaction force during the pedal operation. Since there is a tendency to fall easily, by setting the inclination angle α to 23.5 ° or less, it is possible to prevent slippage of the flange Ks and obtain a stable mounting state of the flange. desirable. In addition, when the inclination angle α of the upper surface of the inclined surface portion 14 is less than 13.5 °, an effect of suppressing an increase in the amount of displacement of the movable floor portion 36 is not sufficiently obtained. It is desirable to set the inclination angle α to 13.5 ° or more.

  In the first embodiment, the operation pedal composed of the accelerator pedal 4 for operating the traveling drive source of the vehicle is moved to the movable pedal member 17 that is depressed by the driver, and the pedal base member that is fixed to the floor panel 9. 18 and an upright displacement area on the floor panel 9 on which the driver's buttocks are placed when the accelerator pedal 4 is depressed, The advantage that the accelerator pedal 4 that is desired to be delicately operated with the buttocks of the pedal operation feet placed on the buttocks placement area on the floor panel 9 can be appropriately operated with a simple configuration. There is.

  Furthermore, in the said 1st Embodiment, the floor part height adjustment means 15 which has the support base 19, the movable floor part 36, the raising / lowering drive part 37 grade | etc., And the pedal base member 18 of the accelerator pedal 4 which consists of said organ type pedal. Since it is unitized so that it can be integrally assembled to the vehicle body, there is an advantage that the assembling work of the accelerator pedal 4 and the floor height adjusting means 15 can be performed easily and appropriately.

  In the above embodiment, the surface layer material 12 is installed so as to cover the surface of the movable floor portion 36, and the surface layer material 12 is provided with the expansion / contraction portion 50 that expands and contracts according to the up-and-down displacement of the movable floor portion 36. The surface layer material 12 prevents the space portion formed below the movable floor portion 36 from being exposed to the outside by expanding and contracting the portion 50 according to the vertical displacement of the movable floor portion 36, and There is an advantage that foreign matter can be prevented from biting into the space below the floor portion 36.

  Moreover, in the said embodiment, as shown in FIG.3 and FIG.5 etc., the lower end hinge part 16 of the movable pedal member 17 which comprises the accelerator pedal 4 is made rather than the movable floor part 36 of the said floor part height adjustment means 15. As shown in FIG. Since the movable floor portion 36 is displaced up and down, the movable floor portion 36 can be prevented from interfering with the accelerator pedal 4 or the saddle portion coming into contact with the accelerator pedal 4 when the accelerator pedal 4 is depressed. Therefore, the pedestal placement position of the pedal operation foot can be appropriately adjusted according to the physique of the driver by the floor portion height adjusting means 15 while ensuring the operability of the accelerator pedal 4 composed of an organ-type pedal. There is.

  Further, in the first embodiment, the region where the driver's sole palm ball part (for example, Bm) abuts on the movable pedal member 17 of the accelerator pedal 4 and the stepping operation is performed is predetermined as viewed from the side. Since the stepped portion 4a is formed of a convex surface portion that protrudes in an arc shape toward the rear side of the vehicle with a radius of curvature of the vehicle, the driver uses the pivot portion (lower end) of the pedal portion of the pedal operation foot (for example, Km). When the accelerator pedal 4 is stepped on with a predetermined distance from the hinge part 16), the contact position of the back of the shoe with respect to the stepped part 4a is raised and lowered as the amount of stepping changes. There is an advantage that it is possible to effectively prevent the driver from feeling uncomfortable even in a case where a situation that shifts occurs.

  That is, the stepped portion of the movable pedal member 17 may be formed in a straight line shape or may be curved so as to protrude toward the front side of the vehicle in a side view according to the shoe back surface. However, in the case of such a structure, the contact of the back of the shoe with the pedal tread as the stepping amount of the movable pedal member 17 increases with the stepped portion and the back of the shoe in contact with each other. Since the position changes while intermittently slipping to the toe side, it is inevitable that this change is clearly perceived by the driver and feels uncomfortable.

  On the other hand, as shown in the first embodiment, the stepped portion 4a disposed on the upper portion of the movable pedal member 17 is curved so as to protrude toward the rear side of the vehicle in a side view. In this case, the back surface of the shoe comes into contact with one point (for example, a step center point) of the stepped portion 4a made of the convex surface portion in a line-contact state. Therefore, if a tall person T or the like steps on the accelerator pedal 4 with the buttocks Kt of the pedal operation foot positioned on the rear side of the vehicle body by a predetermined distance from the pivotal support portion of the movable pedal member 17, As the amount changes, the contact position of the shoe back with respect to the stepped portion 4a changes smoothly and continuously so as to roll, effectively preventing the driver from feeling uncomfortable. Can do. In addition, in order to change smoothly and continuously so that the contact position of the shoe back surface with respect to the stepped portion 4a rolls in accordance with the change in the amount of depression of the accelerator pedal 4, the stepped portion 4a is configured. It is desirable to set the radius of curvature of the arcuate convex surface portion within the range of 120 mm to 200 mm, and the most preferable radius of curvature is around 150 mm.

  In the first embodiment, the front / rear position adjusting mechanism 2 and the inclination angle adjustment that move the driver's seat 1 back and forth and reduce the rearward inclination angle of the seat cushion 1a according to the forward movement of the driver's seat 1. Since the seat adjustment mechanism including the mechanism 3 and the like is provided, the driver sitting on the driver's seat 1 appropriately sets the drive characteristics of the front and rear position adjustment mechanism 2 and the inclination angle adjustment mechanism 3 according to the height of the driver. Thus, while maintaining the driver's seating posture, the front and rear positions of the driver's seat 1 and the seat cushion 1a are adjusted so that the eye point is aligned with the appropriate line L, and excellent handle operability and pedal operability are obtained. There is an advantage that the inclination angle and the like can be automatically adjusted.

  When the driver seated on the driver seat 1 is configured to operate the floor height adjusting means 15 in conjunction with the operation of adjusting the front and rear position and the inclination angle of the seat cushion 1a, Regardless of the physique of the driver, with the buttocks placed on the inclined surface portion 14, the ankle angle θ1 and the inclination angle θ7 of the sole are set to angles suitable for the operation of the accelerator pedal 4 and the like. While maintaining, the driver's buttocks placement height can be automatically adjusted so that the driver can ensure pedal operability by bringing the lever ball portion into contact with the stepped portion 4a of the accelerator pedal 4. There is an advantage.

  In the first embodiment, the driver's seat 1 is automatically moved back and forth according to the driver's switch operation by the seat adjustment mechanism including the front / rear position adjustment mechanism 2 and the inclination angle adjustment mechanism 3. The example in which the rearward inclination angle of the seat cushion 1a is reduced in accordance with the forward movement of the driver seat 1 has been described. However, the driver can manually operate the front and rear positions of the driver seat 1 and the seat cushion 1a. You may comprise so that a back inclination angle may be changed.

  Moreover, it replaces with the said 1st Embodiment comprised so that the collar part mounting area | region on the floor panel 9 in which a driver | operator's collar part is mounted at the time of depression operation of the accelerator pedal 4 which consists of an organ type pedal, As in the second embodiment shown in FIG. 22, the present invention is applied to a vehicle including an accelerator pedal 4 ′ composed of a suspension pedal that is swingably supported with an upper end pivot portion 4 b provided on the dash panel 8 as a fulcrum. Of course, it is possible. In the vehicle having the accelerator pedal 4 ′ composed of the suspension pedal as described above, it is not necessary to support the accelerator pedal 4 on the support base 19 that supports the movable floor portion 36, so that the structure can be simplified. It is.

  23 and 24 show a third embodiment of the vehicle driving posture adjusting apparatus according to the present invention. In the third embodiment, on the support base 19 of the floor height adjusting means 15, a movable floor portion 36 having a front-facing inclined surface portion 14, and a rotating shaft 93 installed so as to extend in the vehicle width direction, The drive gear 94 fixed to the rotary shaft 93, the drive motor 96 provided on the output shaft with a pinion gear 95 that rotationally drives the drive gear 94, and the movable floor portion 36 fixed to the rotary shaft 93 A pair of left and right push-up links 97 that are driven to be pushed up, a protrusion 39a provided on the movable floor portion 36, and a guide portion 98 including a guide bar 43a that supports the protrusion 39a so as to be movable up and down are disposed.

  Then, in response to the driver's operation to adjust the front / rear position of the driver's seat 1 and the like, the drive motor 96 is operated to swing and displace the push-up link 97 and project at the tip of the push-up link 97. The drive shaft 99 is slid along an arcuate groove 36a formed on the side plate of the movable floor 36, thereby supporting the movable floor 36 via the guide 98, while FIG. It is configured to move up and down from the lowered position shown to the raised position shown in FIG.

  FIG. 25 shows a fourth embodiment of the driving posture adjusting apparatus for a vehicle according to the present invention. In the vehicle driving posture adjusting apparatus according to the fourth embodiment, the left side portion 54 located on the footrest 7 side of the seat cushion 1a is supported so as to be swingable with a support shaft 55 provided at the rear end portion as a fulcrum. In addition, a seat cushion adjusting means 58 including a drive cam 56 for moving the drive cam 56 up and down and a drive motor 57 for rotating the drive cam 56 is provided below the front portion of the left side portion 54.

  According to the above configuration, when the movable floor portion 36 moves up and down, a difference occurs in the height of the buttocks on both the left and right feet, and a difference occurs in the rhino angle θ3 between the left and right feet. By operating the left side portion 53 of the seat cushion 1a by oscillating 57, the distance between the thighs of the left and right feet and the seat surface of the seat cushion 1a can be maintained constant. Accordingly, the repulsive force acting on the left and right feet from the seat cushion 1a can be prevented from becoming unbalanced, and the driver can be prevented from feeling uncomfortable.

  Note that the above-described second structure is configured to swing the left side portion 54 located on the footrest 7 side of the seat cushion 1a with the support shaft 55 as a fulcrum when there is a difference between the right and left foot sway angles θ3 as described above. Instead of the fourth embodiment, the distance between the thighs of the left and right feet and the seat surface of the seat cushion 1a may be maintained constant by moving the entire left side portion 54 of the footrest 7 up and down.

  Further, when the seat cushion 1a is slid by the front / rear position adjusting mechanism 2 to adjust the front / rear position, the left and right portions 54, right portions and the installation height of the seat cushion 1a are changed accordingly. You may make it make it. For example, when the seat cushion 1a is moved forward, the left and right seat slide lower rails 61 that support the seat cushion 1a so as to be movable back and forth are displaced so that the right side portion of the seat cushion 1a is displaced above the left side portion 54. It may be configured to prevent the left and right difference from being generated in the distance between the thighs of the left and right feet and the seat surface of the seat cushion 1a.

1 Driver's seat 1a Seat cushion 4 Accelerator pedal (operating pedal)
DESCRIPTION OF SYMBOLS 7 Footrest 9 Floor panel 14 Inclined surface part 15 Floor part height adjustment means 17 Movable pedal member 18 Pedal base member 36 Movable floor part 37 Lifting drive part 54 The part located in the footrest side 58 Seat cushion adjustment means

Claims (6)

  A vehicle in which an operation pedal to be stepped on by a driver is disposed in front of a driver's seat installed on a floor panel of a passenger compartment, and a footrest on which a rider puts a foot is arranged side by side. Driving posture adjusting device for raising and lowering the heel portion of the pedal operation foot by moving the heel portion mounting area on the floor panel on which the heel portion of the pedal operation foot is placed when the operation pedal is depressed. The driver seat is provided with seat cushion adjusting means for adjusting the relationship between the seat cushion forming the seating surface and the left and right thighs of the occupant. A vehicle driving posture adjusting device characterized by the above.   2. The vehicle driving posture adjusting device according to claim 1, wherein a portion of the seat cushion located on the footrest side is configured to be easily deformable as compared with a portion located on the operation pedal side.   The vehicle driving posture adjusting device according to claim 1 or 2, wherein an installation height of a part located on the footrest side of the seat cushion is different from an installation height of a part located on the operation pedal side.   The vehicular driving posture adjusting device according to any one of claims 1 to 3, wherein a front-rear length of a portion of the seat cushion located on the footrest side is different from a front-rear length on the operation pedal side.   The vehicular driving posture adjusting device according to any one of claims 1 to 4, wherein the seat cushion adjusting means has a function of adjusting an installation angle of a portion located on the footrest side of the seat cushion. .   2. An inclined surface portion that is inclined forward and upward is provided in a heel portion mounting region on a floor panel on which a heel portion of a pedal operation foot is placed when the operation pedal is depressed. The vehicle driving posture adjusting apparatus according to any one of 5.

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