JP2009208636A - Driver seat floor structure of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and adequately adjust a driving posture with a simple structure in order to allow a driver seated in a driver seat to adequately operate a control pedal. <P>SOLUTION: In this driver seat floor structure of an automobile, the control pedal 5 depressed and operated by the driver seated in the driver seat 1 is arranged at the front of a cabin. A heel-placement zone 10 having a frontward region 11 adapted to allow a short person seated in the driver seat 1 to place his/her heel and a rearward region 12 adapted to allow a tall person seated in the driver seat 1 to place his/her heel is provided on an approximately flat floor portion 8 located rearward of a depressing point 5a of the control pedal 5. At least a part of the heel-placement zone 10 is formed with an inclined surface 17 inclined forwardly upward. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a floor structure of an automobile driver's seat in which an operation pedal that is depressed by a driver seated on a driver's seat is disposed at the front of a passenger compartment.

  Conventionally, for example, as shown in Patent Document 1 below, the vertical position of a floor panel (movable floor) on which a seat position adjusting means for adjusting the seat seat surface position and a leg portion of an occupant operating a pedal is placed is adjusted. By providing a floor panel position adjusting means and a driving posture adjustment operating means for operating both of these means, it is possible to set an appropriate driving posture and to adjust the front view without depending on the physique difference of the occupant. A vehicle that is compatible with securing, and that can achieve a proper driving posture even if the amount of adjustment in the front-rear direction of the seat is small, and that can ensure proper pedal operability by adjusting the floor height A driving posture adjusting device is known.

Further, as shown in the following Patent Document 2, the pedal is located at the lower part of a foot pedal that rotates forward and downward with respect to the lower end of the vehicle as a center of rotation, and is installed on the floor surface of the passenger compartment. The foot of the operating foot is placed on the platform by providing a stepping support shape that maintains the buttocks of the operating foot in a supported state throughout the range of movement of the foot pedal. 2. Description of the Related Art An operation assisting device for a foot pedal that is configured to prevent the pedal from being lifted and to be able to stably perform pedal operation is known.
JP 2005-145405 A JP 2007-109162 A

  In the driving posture adjusting device for a vehicle disclosed in Patent Document 1 above, for example, the seat position adjusting means moves the driver's seat back and forth according to the height of the driver sitting on the driver's seat, and in response to this, Because the vertical position and inclination angle of the seat cushion can be adjusted, an accelerator pedal or a brake pedal, etc., disposed in front of the driver seat while maintaining the seating posture of the driver seated on the driver seat in an easy state The driver's seating posture can be adjusted so that the forward visibility can be properly secured. In addition, when the driver sitting on the driver's seat changes to a person with a different height and the length of the foot and the sole dimensions change, the floor panel position adjustment means adjusts the vertical position of the movable floor. Since the position can be adjusted, the mother and child ball part of the sole can be properly brought into contact with the pedal surface part of the operation pedal in a state where the heel part of each driver is placed on the floor panel. There is an advantage that the depression characteristic of the operation pedal can be adjusted.

  However, as described above, the front and rear position of the driver's seat and the vertical position and inclination angle of the seat cushion can be adjusted by the seat position adjusting means, and the vertical position of the movable floor panel is adjusted by the floor panel position adjusting means. In the case where it is possible, there is a problem that the structure of the adjusting device is complicated and the manufacturing cost becomes high. In particular, since the floor panel position adjusting means must be installed in a narrow gap formed between the movable floor and the floor panel located below the movable floor, it is possible to sufficiently secure the installation space. There were problems such as difficulty. Even when the vertical position of the movable floor panel is adjusted to an appropriate value by the floor panel position adjusting means, the driver's pedal is affected by the adjustment of the position and angle of the driver's seat by the seat position adjusting means. Since operability and the like change, it is extremely difficult to adjust all of the position and angle of the driver seat and the vertical position of the movable floor panel to appropriate values.

  On the other hand, as disclosed in the above-mentioned Patent Document 2, a first tread surface formed on the upper surface of a footrest installed at the lower part of the foot pedal, and inclined downward from the front of the vehicle to the rear, and the first tread. The tread support shape is formed adjacent to the rear of the tread, and has a first tread that has a larger inclination angle with respect to the floor than the first tread and has a vehicle longitudinal dimension narrower than the first tread. According to the configuration provided with the portion, the operator's buttocks move to the front side of the vehicle by the locking portion including the first tread surface and the second tread surface when the stepping pedal is depressed. This has the advantage that the operability of the foot pedal can be effectively stabilized.

  However, when the driver seated on the driver seat changes to a person with a different height and changes its seating position, seating posture, etc., the buttocks of the operation foot are placed correspondingly. Although it is desirable to adjust the installation position of the step platform and the placement height of the buttocks, this point is not taken into account in the above-mentioned Patent Document 2, and the stepping type is caused by the presence of the step platform. There was a problem that the operability of the pedal deteriorated.

  In view of the above circumstances, the present invention provides a vehicle driver's seat floor structure that can easily and appropriately adjust the driving posture with a simple configuration so that the driver seated on the driver's seat can properly operate the operation pedal. It is intended to do.

  The invention according to claim 1 is a floor structure of an automobile driver's seat in which an operation pedal to be depressed by a driver seated on a driver's seat is disposed in the front part of the passenger compartment, and from the depression point of the operation pedal A heel having a front area on which a buttock of a short stature seated on a driver's seat is placed and a rear area on which a buttock of a tall person is placed on a substantially horizontal floor portion positioned rearward. A mounting area is provided, and an inclined surface that is inclined upward is formed in at least a part of the saddle mounting area.

  The invention according to claim 2 is the floor structure of the automobile driver's seat according to claim 1, wherein the inclination angle of the inclined surface with respect to the horizontal plane is set within a range of 13.5 ° to 23.5 °. is there.

  According to a third aspect of the present invention, in the floor structure for a driver's seat according to the first or second aspect, the inclined surface is provided only in a front region of the heel mounting region on which the buttocks of the short stature are placed. Is formed.

  The invention according to claim 4 is the floor structure of the automobile driver's seat according to claim 3, wherein the valley fold extends in the vehicle width direction between the rear end of the inclined surface and a substantially horizontal plane continuing behind the inclined surface. A bent portion is formed.

  The invention according to claim 5 is a vehicle driver's seat floor structure according to any one of claims 1 to 4, wherein the driver's seat is moved back and forth, and the driver's seat is moved in accordance with the forward movement of the driver's seat. A seat adjustment mechanism that reduces the rearward tilt angle of the seat cushion is provided.

  The invention according to claim 6 is the floor structure of the automobile driver's seat according to any one of claims 1 to 5, wherein the inclined surface is installed from the installation area of the accelerator pedal constituting the operation pedal. It is formed so as to extend in the vehicle width direction over the region.

  In the first aspect of the present invention, since the inclined surface inclined upward is formed in at least a part of the saddle placement region, the driver sitting on the driver's seat places the collar on the inclined surface. In this state, the lever ball part can be brought into contact with the stepping point of the operation pedal while maintaining the ankle angle and the inclination angle of the sole at appropriate angles. It is difficult to perform subtle pedal operations due to the operation of the operation pedal being separated from the surface, or the ankle angle or the inclination angle of the sole is greatly deviated from the appropriate angle, making it difficult to operate the pedal quickly. There is an advantage that it can be effectively prevented.

  In the invention according to the second aspect, since the inclination angle of the inclined surface with respect to the horizontal plane is set within the range of 13.5 ° to 23.5 °, the driver's buttocks placed on the inclined surface is operated by the pedal. It can be prevented from sliding backwards depending on the reaction force of the time, and with the buttocks of the short stature placed on the inclined surface, the insulator ball part is brought into contact with the depression point of the accelerator pedal There is an advantage that can be.

  In the invention which concerns on the said Claim 3, the pedal operability by this short stature is improved effectively by preventing that the leg part of a short stature with short sole dimension will be in the state spaced apart from the floor surface. It is possible to configure the rear area of the heel mounting area on which the tall part of the tall person is placed by a substantially horizontal floor part, and that the rear area is a mounting area of the heel part. Can be easily recognized by a person.

  In the invention according to the fourth aspect, since the valley-folded bent portion extending in the vehicle width direction is formed between the rear end of the inclined surface and the substantially horizontal plane continuing behind the inclined surface, the seat is seated on the driver's seat. It is possible to allow an average stature person who has the most opportunities to easily and accurately recognize the position where the buttock should be placed based on the valley-folded portion.

  In the invention according to claim 5, the driver's seat is moved back and forth, and the front / rear position adjusting mechanism and the tilt angle adjusting mechanism for reducing the rearward tilt angle of the seat cushion according to the forward movement of the driver seat are provided. The driver sitting on the driver's seat operates the above-mentioned front-rear position adjustment mechanism and tilt angle adjustment mechanism according to the height of the driver's seat, so that the driver's seating posture is maintained and the eye point is matched with the appropriate line. In addition, there is an advantage that the front-rear position of the driver's seat, the inclination angle of the seat cushion, and the like can be automatically adjusted so that excellent handle operability and pedal operability can be obtained.

  In the invention according to claim 6, according to the structure in which the inclined surface that rises forward is provided so as to straddle the accelerator pedal installation area and the brake pedal installation area, the driver seated on the driver seat is When operating the brake pedal with the left foot, with the buttocks resting on the slope, keep the ankle angle of the left foot and the tilt angle of the sole at the appropriate angles, and move the lever ball to the accelerator pedal. Can be brought into contact with the depression point of the brake pedal and the depression point of the brake pedal.

  1 to 5 show an embodiment of a floor structure of a driver's seat according to the present invention. In this automobile, a front / rear position adjusting mechanism 2 that adjusts the front / rear position by slidably moving the seat cushion 1a of the driver's seat 1 disposed in the passenger compartment, and an inclination that adjusts the inclination angle of the seat cushion 1a. A sheet adjustment mechanism having an angle adjustment mechanism 3 is provided. Further, an operation pedal including a brake pedal 4 and an accelerator pedal 5 that are depressed by a driver seated on the driver's seat 1 is juxtaposed 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 floor portion 8 extending to the rear side of the vehicle body. On the upper surface of the floor portion 8, a conventionally well-known floor trim material (see FIG. 1) is provided with an 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.

  Depressing point of the operation pedal comprising the accelerator pedal 5, that is, a depressing point that is pushed by the lever ball portion (the bulging portion located at the base of the thumb) of the operating foot of the driver seated on the driver seat 1 On the substantially flat floor portion 8 located on the rear side of the vehicle body with respect to the vehicle body 5a, a saddle placement region 10 on which a driver seated on the driver's seat 1 places the buttocks of the operation feet is provided. . The heel placement area 10 includes a front area 11 on which a short stature seated on the driver's seat 1 places a buttock of an operation foot, and a rear area 12 on which a tall person places a buttock of an operation foot. have.

  The short stature is assumed to be a person whose height is lower than the average stature who is most likely to sit on the driver's seat 1 from a statistical viewpoint. A tall stature is taller than the average height. Is assumed. And as will be described later, on the basis of the position where the average height person sitting on the driver's seat 1 places the buttocks of the operating foot, the front side is set as the front area 11 of the eaves placing area 10, and The rear side is set as the rear region 12.

  A pad member 13 made of a synthetic resin material or the like having appropriate elasticity and rigidity is installed in the front region 11 of the saddle placement region 10. As shown in FIG. 2, the pad member 13 extends from the installation portion of the accelerator pedal 5 to the right side (the vehicle outer side in a right-hand drive vehicle) in plan view, and has an inclined mounting portion 14 whose upper surface is inclined upward. A fan-shaped portion 15 which is formed in a circular arc shape centering on the depression point 5a of the accelerator pedal 5 and extends to the left side from the installation portion of the accelerator pedal 5, that is, the installation portion side of the brake pedal 4, and the inclined mounting portion 14 and the fan shape. A front extension 16 connected to the front end of the portion 15.

  As shown in FIGS. 3 and 4, the inclined mounting portion 14 of the pad member 13 is formed in a triangular shape in a side view. Further, as shown in FIGS. 2 and 5, the fan-shaped portion 15 of the pad member 13 is formed in a ¼ conical arc shape with the depression point 5 a of the accelerator pedal 5 as a vertex. Then, the pad member 13 is fixed on the floor portion 8 via an adhesive, a locking tool, or the like, so that the pad member 13 continues to the left and right in the front region 11 of the saddle placement region 10 and the accelerator pedal 5 is depressed. Inclined surfaces 17 and 18 that are inclined upward and forward toward the point 5a are formed.

  The inclination angle α of the inclined surfaces 17 and 18 with respect to the horizontal plane is set in the range of 13.5 ° to 23.5 °. Further, as shown in FIGS. 4 and 5, a valley-folded bent portion 19 is provided between the rear end of the inclined mounting portion 14 and the substantially horizontal floor portion 8 that continues to the rear thereof. It is formed to extend in the width direction. In FIG. 2, broken lines indicate contour lines.

  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 installation portion of the driver seat 1. The seat slide upper rail 42 is supported so as to be slidable. The seat slide lower rail 41 is made of C-type steel or the like having an open upper surface, and the mounting brackets 43 and 44 are integrally joined to both front and rear ends thereof. The mounting brackets 43 and 44 are fixed to the upper surface of the cross member 120 via fastening bolts or the like, so that the seat slide lower rail 41 is installed on the floor portion 8 in a state where the seat slide lower rail 41 is inclined slightly upward. ing.

  In the left and right seat slide lower rails 41, as shown in FIG. 8, a rotary shaft 45 comprising a screw shaft is rotatably installed, and between the front end portions of the left and right seat slide upper rails 42, driving is performed. A drive shaft 47 that is rotationally driven by a 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. Further, at both left and right end portions of the drive shaft 47, a power transmission portion 49 including a bevel gear mechanism or a worm wheel gear mechanism for transmitting the drive force to the rotation shaft 45 is provided.

  The seat slide lower rail 41, the seat slide upper rail 42, the rotary shaft 45, the drive motor 46, the drive shaft 47, and the power transmission portion 49, and a nut block fixed to the bottom of the seat slide lower rail 41 and screwed into the rotary shaft 45 41a constitutes a front / rear position adjustment 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 41.

  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 46 is output, and the drive motor 46 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 47, the power transmission unit 49, and the rotating shaft 45. The rotating shaft 45 is supported by a nut block 41a fixed to the bottom of the seat slide lower rail 41, and is rotationally driven by the driving force input from the power transmission portion 49 and screwed forward to the vehicle body. As a result, 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 the front / rear adjustment switch is operated in the reverse direction, a control signal for rotating the drive motor 46 in the reverse direction is output, and the drive motor 46 reverses 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 47, the power transmission unit 49, and the rotation shaft 45, and the rotation shaft 45 is driven in reverse and screwed to the rear side of the vehicle body. 42 and the seat cushion 1a of the driver's seat 1 are driven to the rear side of the vehicle body.

  Further, since the seat slide lower rail 41 is installed on the vehicle body floor in a state where it is inclined forwardly upward, the seat slide upper rail 42 and the seat cushion 1a of the driver's seat 1 are attached to the seat slide upper rail 42 by the front / rear position adjusting mechanism 2. When the seat cushion 1a is moved along the seat slide lower rail 41 toward the front side of the vehicle body, the seat cushion 1a is pushed upward in conjunction with this movement. On the contrary, when the seat slide upper rail 42 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 41 by the front / rear position adjusting mechanism 2, the seat cushion is interlocked with this movement. 1a descends.

  The seat slide upper rail 42 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. 6 and 7, the tilt angle adjusting mechanism 3 is installed on the cushion frame 51 provided on the left and right side portions of the seat cushion 1a and on the upper surface of the front portion of the seat slide upper rail 42. A front bracket 52 and a front link 53 that support the front end portion of the frame 51, a rear bracket 54 that is installed on the rear upper surface of the seat slide upper rail 42 and supports the rear portion of the cushion frame 51, and a triangular rear link 55, a connecting shaft 56 that connects the rear end portions of the left and right rear links 55 and the rear lower ends of the cushion frames 51, and an upper surface of the center portion of the seat slide upper rail 42 to be attached to the rear links 55. A central link 57 for transmitting the driving force and a central bracket 58 for supporting the central link 57; The connecting link 59 to the upper portion of the central link 57 connected to the front end portion of the rear link 55, following the drive shaft 60, and a drive lever 61 and the tilting drive unit 62.

  The central link 57 is fixed to a drive shaft 60 whose lower end extends in the vehicle width direction, and is rotatably supported by the central bracket 58 via the drive shaft 60. A drive lever 61 is fixed to the drive shaft 60 so as to rotate and displace the drive shaft 60. Further, the central bracket 58 provided on one of the pair of left and right seat slide upper rails 42 (the outer side in the vehicle width direction) is provided with a tilt drive unit 62 that drives the drive lever 61 fixed to the drive shaft 60. Is provided.

  As shown in FIGS. 9 and 10, the tilt drive unit 62 includes a screw shaft 64 having a front end portion connected to a tip end portion (lower end portion) of the drive lever 61 via a connection pin 63, and the screw shaft 64. And a guide bracket 67 fixed to the front surface of the gear mechanism 66, and a base end portion of the guide bracket 67 is connected to the central bracket 58 via a support bracket 68. It is supported by. 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 into the shaft 64 is formed.

  Then, as the worm nut 70 is rotationally driven by the driving force input from the drive motor 65 through the worm gear 69, the screw shaft 64 screwed to the worm nut 70 is rotated and screw-fed. It has become so. As the screw shaft 64 is screwed, the connecting pin 63 provided at the tip of the screw shaft 64 moves back and forth along the support groove 71 formed in the guide bracket 67, and the driving force thereof is connected to the connecting pin 63. By being transmitted to the drive lever 61 via this, the drive lever 61 is oscillated and displaced, and the drive shaft 60 is rotationally driven.

  Further, as the drive shaft 60 is rotationally driven, the central link 57 is oscillated and displaced, and the driving force is transmitted to the rear link 55 via the connecting link 59, and the rear link 55 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 53 corresponding thereto. That is, in the state where the seat cushion 1a of the driver's seat 1 is located on the rear side of the vehicle body, the front link 53 and the center link 57 are inclined rearward as shown in FIG. When the connecting shaft 56 provided at the rear end portion 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 body by the front / rear adjustment switch is performed, the drive motor 65 of the tilt angle adjusting 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 65 is transmitted through the gear mechanism 66, the screw shaft 64, the connecting pin 63, the driving lever 61 and the driving shaft 60 to the central link. 57, the central link 57 shifts from the backward inclined state to the standing state as shown in FIG. Then, as the central link 57 shifts to the standing state, the driving force is transmitted to the rear link 55 via the connecting link 59, and the front end portion of the rear link 55 is pulled to the front side of the vehicle body. The connecting shaft 56 provided at the rear end of the rear link 55 is raised and driven so that the rear end of the seat cushion 1a is pushed up accordingly.

  In addition, since the front link 53 shifts from the rearward tilted state to the standing state in conjunction with the swinging displacement of the rear link 55, 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. In conjunction with this, the inclination angle of the seat back 1b changes 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 65 of the tilt angle adjustment 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 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. As a result, as shown in FIG. 6, the seat cushion 1a is displaced from the upper position to the lower position, and the rearward tilt angle of the seat surface is gradually increased in accordance with the downward movement of the seat cushion 1a. The seat back 1b is configured to be largely inclined backward.

  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 sitting on the driver's seat 1 with respect to the eye point and the operation pedal also changes. Therefore, the driver who newly sits on the driver's seat 1 holds the steering handle 20 in an appropriate state while maintaining the comfortable posture, and sets the operating foot to the depression point 5a of the operation pedal including the accelerator pedal 5 and the like. The front / rear position adjusting mechanism 2 and the tilt angle adjusting mechanism 3 are operated so that the insulator ball part is brought into contact in an appropriate state and the eye point is aligned with the appropriate line L so that the front field of view can be properly secured. An attempt is made to adjust the front and rear position of the driver seat 1.

  Since the driver seat 1 may be seated by drivers having various heights from those with a height of less than 150 cm to those with a height of 186 cm or more, these people 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, in the United States, the height of the average height person M who is considered to have the most opportunity to sit on the driver's seat 1 is set to 173 cm based on the average value of American men, and the comfort posture of the average height person M is statistically determined. As a result of analysis, the following data was obtained.

  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. 12, the ankle angle θ1 of the operating 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. The bending angle θ3 is about 95 °. In the case of the average height person M, the appropriate angle of the rhino angle θ4, which is the angle formed by the thighs with respect to the horizontal line, is a value obtained by adding approximately 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 20 can be properly operated is about 100 ° to 130 °, the side angle θ6 is about 20 ° to 45 °, and the accelerator pedal 5 can be appropriately operated. The possible sole angle, that is, the inclination angle θ7 of the sole with respect to the horizontal line is about 52 °.

  Therefore, the average height person M sets, for example, the ankle angle θ1 to 90 °, the knee angle θ2 to 125 °, the bending angle θ3 between the upper body and the thigh from the hip to the shoulder to 95 °, and When the rhino angle θ4 is set to 17 ° and the user sits on the driver's seat 1, the eye point Im of the average height person M can be made to coincide with the appropriate line L inclined forward and downward at an angle of about 8 °. As described above, the front / rear reference position, the vertical reference height, and the reference inclination angle of the seat cushion 1a are set. 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, and the steering handle 20 can be properly gripped, and the heel portion Km of the operation foot is The lever ball portion Bm of the sole can be brought into contact with the depression point 5a of the accelerator pedal 5 at an appropriate angle θ7 (52 °) while being placed at a preset reference position.

  In FIG. 12, Hm is the hip point (sitting reference point) of the average height person M seated on the driver's seat 1. Further, the reference position on which the average height person M places the heel part Km of the operation foot is a valley-folded bending provided at the boundary between the front area 11 and the rear area 12 of the heel placing area 10. The position corresponding to the portion 19, that is, the rear end position of the inclined surface 17 is set.

  When the driver sitting on the driver's seat 1 changes from the average stature M to a short stature S made up of a female driver or the like, as shown by the phantom line in FIG. 12, the short stature S The front / rear position adjustment mechanism 2 and the inclination angle adjustment mechanism 3 are operated so that the eye point Is can coincide with the appropriate line L while ensuring the handle operability and the pedal operability, and the seat cushion 1a of the driver's seat 1 is operated. Is moved forward, and in response to this, the installation height of the seat cushion 1a is increased, and the inclination angle of the seat cushion 1a with respect to the horizontal line is decreased.

  For example, when a short stature person S having a height of 150 cm sits on the driver's seat 1, the hip point Hs located on the seat cushion 1 a is about 105 mm from the front and rear reference position Hm for the average height person M. In addition to moving forward, 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 θ4 is about 10.5 °. To do. As a result, the upper body of the short stature S with short hands compared to the average height M can be moved forward so that the steering handle 20 can be gripped in an appropriate state, and the sitting height is lower than that of the average height M. The eye point Is of the tall person S can be made to coincide with the appropriate line L by moving it to the upper front side of the vehicle body.

  Further, since the operation foot of the short stature S tends to move upward in the front part of the vehicle body in accordance with the forward movement and upward movement of the seat cushion 1a, the knee angle θ2 is set to about 130 ° correspondingly. By increasing the angle, the ankle angle θ1 is maintained at 90 °, and the inclination angle θ7 of the sole is maintained at an angle close to the appropriate angle (52 °), and the palm ball portion Bs of the short stature S is accelerated. The pedal 5 can be brought into contact with the depression point 5a.

  As shown in FIG. 13, the distance (about 15.5 cm) from the buttocks Ks of the short stature S to the ball part Bs is approximately the same as that of the average stature M (about 18.0 cm). Since the ankle angle θ1 and the inclination angle θ7 of the sole of the short stature S are maintained at the above angles, the lever ball portion Bs of the operating foot is brought into contact with the stepping point 5a of the accelerator pedal 5 because it is 2.5 cm short. If it is going to maintain in the state, the buttocks Ks will be located about 2 cm (= sin 52 ° × 2.5 cm) above the buttocks Km of the average height person M.

  Therefore, as shown by the broken line in FIG. 13, when the inclined mounting portion having the inclined surface 17 ′ inclined upward at an angle of about 52 ° is provided in the heel mounting region 10, the short stature person S The lever part Bs of the operation foot can be brought into contact with the stepping point 5a of the accelerator pedal 5 accurately while the heel part Ks of the operation foot is placed on the inclined surface 17 ′. However, when the inclination angle of the inclined surface 17 ′ is set to a large value of about 52 °, slipping of the collar portion Ks is likely to occur, and it is difficult to stabilize the mounting state.

  For this reason, in the above-described embodiment, the inclined mounting portion 14 and the fan-shaped portion having the inclined surfaces 17 and 18 that are inclined upwardly at an inclination angle α of 13.5 ° to 23.5 °, for example, an angle of 18.5 °. 15 is provided in the saddle placement region 10. Then, as shown by the solid line in FIG. 13, the short stature person S increases the inclination angle θ7 of the sole from the appropriate angle (52 °) by about 6 ° to about 58 °, thereby changing the buttocks of the operating foot. In a state where Ks is placed on the inclined surfaces 17 and 18, the lever ball portion Bs can be brought into contact with the stepping point 5 a of the accelerator pedal 5.

  The ankle angle θ1 of the operating foot tends to be smaller than 90 ° corresponding to the change in the inclination angle θ7 of the sole from 52 ° to 58 °, but the increase of the sole inclination angle θ7 is increased. Correspondingly, when the knee angle θ2 of the short stature S is made larger than 130 ° and the knee is stretched and put into a slight state, the ankle angle θ1 becomes smaller than an appropriate range, for example, 85 ° or less. It can be surely prevented. Further, if the lever ball portion Bs of the operation foot is positioned slightly below the stepping point 5a of the accelerator pedal 5, there is an advantage that the change in the ankle angle θ1 can be more effectively suppressed.

  On the other hand, as shown in FIG. 14, for example, when a tall person T having a height of 186 cm sits on the driver's seat 1, the hip point Ht located on the seat cushion 1 a is used for the average height person M. Of the seat cushion 1a so that the hip point Hs is moved downward by about 20 mm in conjunction with this, and the rhino angle θ4 is set to about 20.0 °. Operate to change the tilt angle. As a result, the upper body of the tall person T, whose hand is longer than the average tall person M, can be moved rearward to grip the steering handle 20 in an appropriate state, and the height of the sitting person is higher than that of the average tall person M. By moving the eye point It of the person T to the lower rear side of the vehicle body, the eye line It can be matched with the appropriate line L.

  Further, since the operating foot of the tall person T tends to move downward in the rear part of the vehicle body in accordance with the backward and downward movement of the seat cushion 1a, the knee angle θ2 is reduced to about 120 ° correspondingly. As a result, while maintaining the ankle angle θ1 at 90 ° and maintaining the inclination angle θ7 of the sole at an appropriate angle of about 52 °, the accelerator ball 5 is depressed by the accelerator pedal 5. It can be brought into contact with the point 5a.

  In addition, as shown in FIG. 15, the distance (about 19.5 cm) from the buttocks Kt of the tall person T to the palm ball part Bt is larger than the same distance (about 18.0 cm) of the average tall person M. Since the ankle angle θ1 and the inclination angle θ7 of the sole of the tall person T are maintained at the above angles, the lever ball portion Bt of the operating foot is brought into contact with the stepping point 5a of the accelerator pedal 5. In order to maintain the contacted state, the buttock Kt needs to be positioned about 1.2 cm (= sin 52 ° × 1.5 cm) below the buttock Km of the average height person M (see FIG. 15 imaginary lines). However, as shown by the solid line in FIG. 15, the sole inclination angle θ7 of the tall person T is decreased by about 4 ° from the appropriate angle (52 °) and changed to about 48 ° to thereby change the height of the tall person T. The lever ball portion Bt of the operating foot can be brought into contact with the stepping point 5a of the accelerator pedal 5 in a state where the collar portion Kt is placed on the substantially horizontal floor portion 8 located behind the inclined surface 17. Is possible.

  Further, the ankle angle θ1 of the operating foot tends to be larger than 90 ° corresponding to the change in the inclination angle θ7 of the sole from 52 ° to 48 °. Correspondingly, by making the knee angle θ2 smaller than 120 ° and bending the knee, it is possible to reliably prevent the ankle angle θ1 from becoming larger than the appropriate range, for example, 95 ° or more. Can do. Furthermore, if the lever ball portion Bt of the operating foot is positioned slightly above the stepping point 5a of the accelerator pedal 5, there is an advantage that the change in the ankle angle θ1 can be more effectively suppressed.

  In the floor structure of an automobile driver's seat in which the operation pedal including the accelerator pedal 5 and the like that is depressed by the driver seated on the driver's seat 1 as described above is disposed in the front part of the passenger compartment, the accelerator pedal 5 is depressed. On the substantially horizontal floor portion 8 located behind the point 5a etc., the front region 11 where the buttocks Ks of the short stature S seated on the driver's seat 1 are placed, and the buttocks Kt of the tall T Is provided on the driver's seat 1, and the inclined surfaces 17 and 18 inclined upward are formed on at least a part of the saddle placement region 10. The driving posture can be easily and appropriately adjusted with a simple configuration so that the seated driver can properly operate the operation pedal.

  That is, in the above embodiment, the inclined surfaces 17 and 18 that are inclined upwardly at an inclination angle α of 13.5 ° to 23.5 ° are formed in the front region 11 of the heel mounting region 10. In comparison, the short stature person S, whose sole dimensions are short, maintains the ankle angle θ1 and the inclination angle θ7 of the sole at appropriate angles while the heel part Ks of the operation foot is placed on the inclined surfaces 17 and 18. However, the lever ball portion Bs can be brought into contact with the stepping point 5a of the accelerator pedal 5. Therefore, the above-mentioned short stature S cannot perform a delicate pedal operation because the operation pedal including the accelerator pedal 5 or the like is depressed while the buttocks Ks of the operation foot is separated from the floor surface. The accelerator pedal 5 and the like can be operated easily and appropriately without causing an ankle angle θ1 and an inclination angle θ7 of the sole to deviate greatly from the appropriate angles. There is an advantage that it can be stepped on.

  In addition, although it is possible to form the inclined surfaces 17 and 18 that are continuous in both the front region 11 and the rear region 12 of the saddle placement region 10, as shown in the embodiment, the inclined surface 17 is placed on the saddle placement region. Even in the case where the structure is formed only in the front region 11 of the region 10, the pedal operability of the short stature S having the problem that the heel portion Ks is likely to be separated from the floor surface due to the short sole dimension is effective. Can be improved.

  On the other hand, in the case of a tall person T, as shown in FIGS. 14 and 15, if the sole inclination angle θ7 of the operating foot is decreased and the knee angle θ2 is decreased, the buttock Kt is moved downward. Without this, the lever sphere Bt of the operating foot can be easily and properly brought into contact with the stepping point 5a of the accelerator pedal 5 or the like. Therefore, even if the tall person T sets the rear region 12 on which the heel portion Kt of the operating foot is placed on the substantially horizontal floor portion 8, the depressing operability of the accelerator pedal 5 is not adversely affected. Absent. In addition, the rear region 12 of the heel mounting region 10 on which the tall person T mounts the heel portion Kt of the operation foot is disposed on the substantially horizontal floor portion 8, so that the rear region 12 becomes the heel of the operation foot. The tall person T can easily recognize that the portion Kt is an area to be placed.

  In addition, the inclined surface 17 and the substantially horizontal plane (floor portion 8) behind the inclined surface 17 are gently continued by providing an arc-shaped continuous portion at the rear end portion of the pad member 13 constituting the inclined surface 17. You can also. However, as shown in the above-described embodiment (see FIG. 4), when a valley-folded bent portion 19 extending in the vehicle width direction is formed between the inclined surface 17 and the floor portion 8, the driver's seat The average height person M who is considered to have the most opportunity to sit on 1 can easily and accurately recognize the position where the heel part Km of the operation foot is to be placed based on the bent part 19 of the valley fold. Therefore, the convenience for the average height person M can be effectively improved.

  Moreover, in the said embodiment, since the inclination angle (alpha) with respect to the horizontal surface of the said inclined surfaces 17 and 18 formed in the cage | basket mounting area | region 10 was set in the range of 13.5 degrees-23.5 degrees, on the said inclined surface 17 Further, there is an advantage that it is possible to effectively prevent the heel portion Ks from being separated from the floor surface in a state where the short stature S stably places the heel portion Ks of the operation foot.

  That is, when the inclination angle α of the inclined surface 17 is larger than 23.5 °, the heel portion of the operating foot placed on the inclined surface 17 is likely to slide backward depending on the reaction force during pedal operation. Since the stable mounting state of the buttock cannot be obtained, it is desirable to set the inclination angle α to 23.5 ° or less. On the other hand, when the inclination angle α of the inclined surface 17 is less than 13.5 °, the effect of positioning the upper surface upward, that is, the short stature person S places the buttocks Ks of the operating foot on the inclined surface 17. The tilt angle α is set to 13.5 ° or more because the effect that the lever ball portion Bs can be brought into contact with the depression point 5a of the accelerator pedal 5 in the mounted state cannot be obtained. It is desirable to do.

  Further, in the above-described embodiment, the driver's seat 1 is moved back and forth, and the front / rear position adjusting mechanism 2 and the tilt angle adjusting mechanism 3 that reduce the rearward tilt angle of the seat cushion 1a according to the forward movement of the driver's seat 1. Since the driver seated on the driver's seat 1 sets the driving characteristics of the front / rear position adjusting mechanism 2 and the tilt angle adjusting mechanism 3 appropriately according to the height, While maintaining the driver's seating posture, the eye point is aligned with the appropriate line L, and the front / rear position of the driver's seat 1 and the inclination of the seat cushion 1a are obtained so that excellent handle operability and pedal operability can be obtained. There is an advantage that the angle and the like can be automatically adjusted.

  Even when the seating position or the like of the driver seated on the driver seat 1 changes according to the adjustment operation of the front / rear position of the driver seat 1 and the inclination angle of the seat cushion 1a, at least the saddle placement region 10 In a state where the inclined surfaces 17 and 18 inclined upward are formed in part, the short stature person S having a short sole dimension places the buttocks Ks of the operating foot on the inclined surfaces 17 and 18. While the ankle angle θ1 and the inclination angle θ7 of the sole are maintained at an angle suitable for the operation of the operation pedal, the lever ball portion Bs of the short stature S is brought into contact with the stepping point 5a of the accelerator pedal 5. There are advantages such as ensuring pedal operability.

  Moreover, in the said embodiment, the saddle mounting area | region 10 is concentric with the inclination mounting part 14 extended to the right side (vehicle outside) from the installation part of the accelerator pedal 5 in planar view, and the depression point 5a of the accelerator pedal 5 as a center. By installing the pad member 13 having the fan-shaped portion 15 disposed on the upper surface of the inclined mounting portion 14, the inclined surface 17 inclined forward and inclined upward is provided. Since the surface 18 is provided on the upper surface of the fan-shaped portion 15, the heel portion Ks of the short stature S can be removed from the floor surface without adversely affecting the pedal switching operation of the tall stature T and the average stature M. There is an advantage that the separated state can be effectively prevented.

  That is, three subjects having a height of 150 cm, six subjects having a height of 160 cm, and three subjects having a height of 170 cm, each having a normal heel placement position in plan view. As a result, the data as shown in FIG. 16 was obtained. From this data, in the subject having a height of 150 cm, the normal saddle placement position is concentrated on the rear side of the accelerator pedal 5 and relatively in front of the accelerator pedal 5, and in the subject having a height of 170 cm. In the case of a subject having a normal heel mounting position concentrated on the rear side between the brake pedal 4 and the accelerator pedal 5 and relatively rearward, and having a height of 160 cm, It can be seen that the positions are dispersed over a wide range.

  This is because a short stature person with a short sole size changes the pedal from the operating state of the accelerator pedal 5 to the operating state of the brake pedal 4 if the heel part placement position of the operating foot is not moved greatly. This is because the normal saddle placement position is often set on the rear side of the accelerator pedal 5 so that the accelerator pedal 5 can be easily operated during normal times. On the other hand, a tall person with a long sole size can change the pedal from the operating state of the accelerator pedal 5 to the operating state of the brake pedal 4 without greatly moving the buttock placement position. In order to make it possible to easily perform this step change operation, a normal saddle placement position is set on the rear side between the brake pedal 4 and the accelerator pedal 5. It is believed that there is.

  Therefore, as shown in FIG. 2 and the like, by providing the inclined mounting portion 14 and the fan-shaped portion 15 only on the rear side portion of the accelerator pedal 5 in a plan view, the inclined surfaces 17 and 18 that are inclined upward are provided as described above. In the case where it is formed in the heel mounting region 10, while preventing the inclined surface 17 from obstructing the pedal switching operation or the like that the tall person switches the operation position from the accelerator pedal 5 to the brake pedal 4, By forming the inclined surface 17 at the above position, there is an advantage that it is possible to effectively prevent the buttocks of the short stature S from being separated from the floor surface.

  In addition, as shown in FIG. 17, while providing the inclination mounting part 14a which has the front rising inclination surface 17a so that it may extend in the vehicle width direction from the installation area | region of the accelerator pedal 5 to the installation area | region of the brake pedal 4 in planar view. Further, a structure in which a fan-shaped portion 15a having an approximately 1/4 conical arc shape with the depression point 4a of the brake pedal 4 being substantially centered may be provided.

  As described above, according to the structure in which the inclined surface 17a that rises forward is disposed so as to straddle the installation area of the accelerator pedal 5 and the installation area of the brake pedal 4, the short person S sitting on the driver's seat 1 When the brake pedal 4 is operated with the right foot, the ankle angle θ1 and the inclination angle of the sole θ7 are maintained at appropriate angles while the heel portion Ks is placed on the inclined surface 17a. The child ball portion Bs can be brought into contact with the depression point 5a of the accelerator pedal 5 and the depression point 4a of the brake pedal 4, respectively. Further, when the short stature S seated on the driver's seat 1 operates the brake pedal 4 with his left foot, the brake operation is performed with the buttocks Ks placed on the fan-shaped portion 15a or the like. It is also possible to do this.

  In the above-described embodiment, the driver 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 tilt angle of the seat cushion 1a is reduced in accordance with the forward movement of the vehicle has been described. However, the front / rear position of the driver's seat 1 and the rearward tilt angle of the seat cushion 1a are changed manually by the driver. You may comprise.

  Further, by fixing the pad member 13 on the floor portion 8 via an adhesive or a fixing bolt or the like, inclined surfaces 17 and 18 inclined upward are formed in the front region 11 or the like of the saddle placement region 10. Instead of the above-described embodiment, a structure may be adopted in which the inclined surface 17 and the like are provided on a driver-seat floor mat material that is laid and locked on the floor portion 8.

It is explanatory drawing which shows embodiment of the floor structure of the motor vehicle driver's seat which concerns on this invention. It is a top view which shows the specific structure of a pad member. It is a perspective view which shows the specific structure of a pad member. It is side surface sectional drawing which shows the specific structure of a pad member. 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 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 side view which shows the sitting 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 heel mounting state of a short stature. It is explanatory drawing which shows the height mounting state of a tall person. It is a top view which shows the variation in the heel mounting position. FIG. 3 is a view corresponding to FIG. 2 showing another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 1a Seat cushion 2 Front-back position adjustment mechanism 3 Inclination angle adjustment mechanism 4 Brake pedal (operation pedal)
5 Accelerator pedal (operating pedal)
8 Floor part (substantially horizontal plane)
DESCRIPTION OF SYMBOLS 10 領域 mounting area | region 11 Front area | region 12 Back area | region 17, 18 Inclined surface 19 Bending part

Claims (6)

  A floor structure of an automobile driver's seat in which an operation pedal to be depressed by a driver seated on a driver's seat is disposed in the front part of the passenger compartment, and is substantially horizontal and located behind the depression point of the operation pedal. On the floor portion, there is provided a heel-mounting region having a front region on which a buttock of a short stature seated on a driver's seat is placed and a rear region on which a buttock of a tall person is placed. A floor structure of an automobile driver's seat, wherein an inclined surface inclined upward is formed in at least a part of the eaves mounting area.   The floor structure of a driver's seat according to claim 1, wherein an inclination angle of the inclined surface with respect to a horizontal plane is set in a range of 13.5 ° to 23.5 °.   The floor structure of a driver's seat according to claim 1 or 2, wherein the inclined surface is formed only in a front region of a heel mounting region on which the buttock of the short stature is mounted.   4. The automobile driver's seat according to claim 3, wherein a valley-folded bent portion extending in the vehicle width direction is formed between a rear end of the inclined surface and a substantially horizontal plane continuing behind the inclined surface. Floor structure.   5. The seat adjustment mechanism according to claim 1, further comprising a seat adjustment mechanism that moves the driver seat back and forth and reduces a rearward tilt angle of the seat cushion according to the forward movement of the driver seat. The floor structure of the driver's seat described in 1.   The said inclined surface was formed so that it might extend in the vehicle width direction from the installation area | region of the accelerator pedal which comprises an operation pedal to the installation area | region of a brake pedal, The any one of Claims 1-5 characterized by the above-mentioned. Car driver's seat floor structure.

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