JP4894787B2 - Car driver's seat floor structure - Google Patents

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 Patent Document 2 below, a heel support point comprising a recess for supporting the driver's right foot heel is provided on the rear side of the brake pedal, and the brake pedal is arranged on a concentric circle centering on the heel support point. In addition, the pedal tread surface (depression point) of the accelerator pedal is arranged, and the pedal tread surface of this brake pedal is set to the same height as the pedal tread surface of the accelerator pedal or lower than the pedal tread surface of the accelerator pedal The floor structure of a vehicle driver's seat installed at a position is known.
JP 2005-145405 A Japanese Patent Laid-Open No. 4-129985

  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 heel support point composed of a recess that supports the driver's right foot heel is provided on the rear side of the brake pedal, and on a concentric circle centering on this heel support point. When the pedal tread surface (stepping point) of the brake pedal and accelerator pedal is provided, the driver can move both the brake pedal and the accelerator pedal without moving the buttocks. There is an advantage that can be operated.

  However, when the driver sitting on the driver seat changes to a person of different height and changes its seating position, seating posture, etc., the heel support point that supports the buttocks of the operating foot is changed accordingly. Although it is desirable to move and adjust the mounting height of the eaves portion, this point is not taken into consideration in the above-mentioned Patent Document 2, and the brake pedal and the accelerator pedal are caused by the presence of the eaves support point. However, there was a problem that the operability of the system 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 a brake pedal and an accelerator pedal that are depressed by operating feet of a driver seated on a driver's seat are disposed in a front part of a passenger compartment, On the floor portion located behind the depression point of the brake pedal and accelerator pedal, there is provided a heel placement region on which the heel portion of the operation foot is placed, and a part of the heel placement region has an upper surface Is formed so as to be higher than other regions, and the first and second dimensions of the first saddle placement part located behind the brake pedal are the second saddle placement located behind the accelerator pedal. It is set to be shorter than the longitudinal dimension of the part.

  According to a second aspect of the present invention, in the floor structure of the automobile driver's seat according to the first aspect, the upper surface of the heel mounting portion is formed as an inclined surface that rises forward.

  According to a third aspect of the present invention, in the floor structure of the automobile driver's seat according to the second aspect, the inclination angle of the inclined surface formed on the upper surface of the first heel mounting portion located behind the brake pedal with respect to the horizontal plane Is set to be larger than the inclination angle of the inclined surface formed on the upper surface of the second saddle placement portion located behind the accelerator pedal.

  According to a fourth aspect of the present invention, in the vehicle driver's seat floor structure according to any one of the first to third aspects of the present invention, a first eaves mounting portion positioned behind the brake pedal, and the accelerator pedal A connecting portion for gently connecting the two is placed between the rear and the second rod mounting portion.

  In the invention according to the first aspect, an ankle angle and an inclination angle of a sole of a short stature seated on a driver's seat in a state where a heel portion of an operation foot is placed on the first heel placement portion. The lever part of the operating foot can be brought into contact with the stepping point of the accelerator pedal while maintaining the angle at an appropriate angle, and the accelerator pedal can be depressed with the buttocks of the operating foot being separated from the floor surface. It is possible to effectively prevent a delicate pedal operation from being performed, or an ankle angle or a tilt angle of the sole to deviate greatly from an appropriate angle, making it difficult to quickly depress the accelerator pedal. There is an advantage. In the case of a tall person, the heel portion of the operation foot is positioned on the rear side of the rear end portion of the first heel placement portion and on the side side portion of the second heel placement portion. In this state, it is possible to perform a pedal change operation for the accelerator pedal and the brake pedal, and effectively prevent the occurrence of a situation in which the change operation is obstructed by the first and second rod mounting parts. There are advantages such as being able to.

  In the invention according to the second aspect, since the upper surfaces of the first and second heel mounting portions are formed in an upwardly inclined surface, the short stature seated on the driver's seat can change the length of the sole according to the length of the sole. By moving the mounting position of the front and back, each short stature person with various sole dimensions maintains the palm ball part of the operation foot while maintaining the ankle angle and the inclination angle of the sole at appropriate angles. There is an advantage that fine adjustment can be made so that the brake pedal can be accurately brought into contact with the depression point of the brake pedal or the depression point of the accelerator pedal.

  In the invention which concerns on the said Claim 3, the inclination angle with respect to the horizontal surface of the inclined surface formed in the upper surface of the 1st rod mounting part located behind a brake pedal is set to the 2nd rod mounting part located behind an accelerator pedal. Since the inclination angle of the inclined surface formed on the upper surface is set to be larger than that of the first heel mounting portion, it is determined by a tall person who may place the heel portion of the operation foot in a position close to the rear end portion of the first heel mounting portion. There is an advantage that it is possible to prevent a situation in which the depression operation with respect to the accelerator pedal or the brake pedal is hindered due to the presence of the first saddle placement portion. In addition, when the short stature operates the brake pedal as described above, the ankle angle and the inclination angle of the sole are properly adjusted by placing the heel portion of the operation foot on the first heel placement portion. The insulator ball portion can be brought into contact with the stepping point of the brake pedal while maintaining the angle.

  In the invention which concerns on the said Claim 4, the connection which connects both gently between the 1st eaves mounting part located behind the brake pedal, and the 2nd eaves mounting part located behind the said accelerator pedal When the short stature person who has placed the heel part on the second heel placement part in a normal state shifts from the operation state with respect to the accelerator pedal to the operation state with respect to the brake pedal, There is an advantage that can be executed smoothly along the connecting portion.

  FIGS. 1-5 has shown 1st Embodiment of the floor structure of the motor vehicle driver's seat which concerns on this 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. In addition, an operation pedal including a brake pedal 4 and an accelerator pedal 5 that are depressed by an operation foot of a driver who is seated on the driver's seat 1 is juxtaposed in the front part of the vehicle 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 points of the brake pedal 4 and the accelerator pedal 5, that is, depressing points that are pushed by the lever ball portion (the bulging portion located at the base of the thumb) of the driver's operating foot seated on the driver seat 1 On the floor portion 8 located on the rear side of the vehicle body with respect to 4a and 5a, there is provided a heel placement region on which the heel portion of the operation foot is placed. A pad member 11 made of a synthetic resin material having elasticity and rigidity is installed.

  The pad member 11 gently includes a first rod mounting portion 12 positioned behind the brake pedal 4, a second rod mounting portion 13 positioned behind the accelerator pedal 5, and both rod mounting portions 12, 13. And a connecting portion 14 to be connected. An inclined surface 15 is formed on the upper surface of the first kite mounting portion 12 so as to incline upward at an angle α of about 16 ° to 24 ° with respect to the horizontal plane, and a part of the kite mounting region. Specifically, the front and rear dimensions thereof are set so that the rear end portion of the first heel placement portion 12 is disposed slightly forward of the average height person's heel placement position. The average height person is assumed to be a person who is considered to have the most chances of sitting on the driver's seat 1 from a statistical viewpoint, as will be described later.

  On the other hand, the second heel mounting portion 13 is inclined upward at an upper surface at an angle smaller than the upper surface of the first heel mounting portion 12, for example, an angle β of about 10 ° to 15 ° with respect to the horizontal plane. The inclined surface 16 is formed, and its front-rear dimension is set to be longer than the front-rear dimension of the first saddle placement part 12, so that substantially the entire saddle placement region located on the rear side of the accelerator pedal 5. That is, all the drivers seated on the driver's seat 1 are arranged so that the second heel mounting portion 13 is disposed over the entire length of the front and rear region where the heel portion of the operating foot may be mounted. Its front and rear dimensions are set.

  Further, as shown in FIG. 2 and FIG. 3, the connecting portion 14 formed on the pad member 11 includes a rear end portion of the first rod placement portion 12 and a rear end portion of the second rod placement portion 13 in plan view. By making the part continuous in an arc shape, it is possible to prevent a step due to the fact that the front-rear dimension of the first saddle placement part 12 is shorter than the second saddle placement part 13 from being formed between them. And as shown in FIG. 5, the both-edge mounting part 12 is made by making the side edge part of the 1st collar mounting part 12 and the side edge part of the 2nd collar mounting part 13 continue in a front view gently. , 13 is prevented from forming a step due to the inclined surfaces 15 and 16 being inclined at different angles.

  Then, the pad member 11 is fixed on the floor portion 8 via an adhesive, a locking tool, or the like, so that the first ridge whose upper surface is raised above the other region in a part of the ridge mounting region. A placement portion 12 and a second heel placement portion 13 are formed. Further, as shown in FIGS. 4 and 5, a valley fold is formed between the rear ends of the first and second saddle mounting portions 12 and 13 and the substantially horizontal floor portion 8 continuing to the rear thereof. Are formed so as to extend in the vehicle width direction.

  As shown in FIGS. 6 to 8, a pair of left and right seat slide lower rails 41 that support the seat cushion 1 a so as to be movable back and forth are disposed in the 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. Then, the mounting brackets 43 and 44 are fixed to the upper surface of the cross member 19 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 it 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, whereby the seat slide upper rail 42 and the seat cushion 1a of the driver's seat 1 are driven to the rear side of the vehicle body.

  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 front-rear reference position on which the average height person M's buttocks Km are placed is the first position formed in the saddle placement area on which the short stature person's buttocks seated on the driver's seat 1 is placed. It is set in front of the rear end of the heel mounting portion 12 and slightly in front of the rear end of the second heel mounting portion 13.

  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 appropriate angle (52 °), while the palm ball portion Bs of the short stature S is placed on the accelerator pedal 5. It can be brought into contact with the stepping 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 angle (52 °), the lever ball portion Bs is applied to the stepping point 5a of the accelerator pedal 5 because the height is short by 2.5 cm. In order to maintain the contact state, it is necessary to position the heel part Ks of the operation foot approximately 2 cm (= sin 52 ° × 2.5 cm) above the heel part Km of the average height person M.

  In the above embodiment, since the second heel mounting portion 13 having the inclined surface 16 inclined upwardly at an inclination angle β of 10 ° to 15 ° is formed on the rear side of the accelerator pedal 5, it is seated on the driver seat 1. As shown by the phantom line in FIG. 13, the short stature S places the lever ball part Bs on the accelerator pedal 5 in a state where the heel part Ks of the operating foot is placed on the second heel placing part 13. It is possible to perform the stepping operation by contacting the stepping point 5a.

  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 assigned to the average height person M. The seat cushion 1a is moved rearward by about 85 mm from the corresponding front-rear reference position Hm, and 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 inclination 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 reduced by about 4 degrees from the appropriate angle (52 degrees) and changed to about 48 degrees to change the height of the tall person T. With the part Kt placed on the substantially horizontal floor part 8 located behind the first saddle placing part 12, the lever ball part Bt of the operating foot is brought into contact with the stepping point 5a of the accelerator pedal 5. It is possible to make it.

  Further, the ankle angle θ1 tends to be larger than 90 ° corresponding to the change in the inclination angle θ7 of the sole from 52 ° to 48 °, but in response to the decrease of the sole inclination angle θ7. By making the knee angle θ2 smaller than 120 ° and bending the knee, it is possible to prevent the ankle angle θ1 from increasing beyond the appropriate range, for example, 95 ° or more. 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 the automobile driver's seat in which the brake pedal 4 and the accelerator pedal 5 that are depressed by the operating feet of the driver seated on the driver's seat 1 as described above are disposed in the front of the passenger compartment, the brake pedal 4 and the accelerator pedal 5 are provided on the substantially horizontal floor portion 8 located behind the step-on points 4a and 5a of the accelerator pedal 5, and a heel placement region on which the heel portion of the operation foot is placed is provided. In part, the first and second rod mounting portions 12 and 13 whose upper surfaces are raised from other regions are formed, and the front and rear dimensions of the first rod mounting portion 12 located behind the brake pedal 4 are set. Since the front and rear dimensions of the second rod mounting portion 13 located behind the accelerator pedal 5 are set shorter, the driver sitting on the driver's seat 1 can operate the operation pedal including the brake pedal 4 and the accelerator pedal 5. As just be operated, the driving position can be adjusted easily and properly by a simple structure.

  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, as shown in FIG. 17, the short stature person S having a short sole dimension moves from the operating state of the accelerator pedal 5 to the operating state of the brake pedal 4 if the mounting position of the buttock Ks is not moved greatly. This is because, since the pedal cannot be changed, a 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 in normal times. On the other hand, as shown in FIG. 18, the tall person T having a long sole dimension shifts from the operating state of the accelerator pedal 5 to the operating state of the brake pedal 4 without greatly moving the mounting position of the buttocks Kt. Since it is possible to perform the pedal change operation, the normal operation is performed on the rear side between the brake pedal 4 and the accelerator pedal 5 with the intention of enabling the change operation. This is considered to be for setting the saddle placement position.

  Therefore, as shown in the above-described embodiment, the portion where the second rod mounting portion 13 having a larger front-rear dimension than the first rod mounting portion 12 is located rearward of the stepping point 5a of the accelerator pedal 5 in plan view. When the inclined surface 16 that is inclined forward and upward toward the depression point 5a of the accelerator pedal 5 is formed, the short stature person S having a short sole dimension compared to the tall person T or the like, With the buttocks Ks of the operating foot placed on the inclined surface 16, while maintaining the ankle angle θ 1 and the inclination angle θ 7 of the sole at appropriate angles, the lever ball Bs is depressed by the accelerator pedal 5. 5a. For this reason, the pedal operation of the accelerator pedal 5 is performed while the buttocks Ks of the short stature S is separated from the floor surface, so that a delicate pedal operation becomes impossible or the ankle angle θ1 and the foot There is an advantage that the accelerator pedal 5 can be easily and properly depressed without making it difficult to quickly depress the accelerator pedal 5 due to the inclination angle θ7 of the back being largely deviated from the appropriate angle.

  When the short stature S operates the brake pedal 4 slowly, the ankle angle θ1 and the inclination angle θ7 of the sole are moved by moving the heel part Ks onto the first heel placing part 12. The lever ball portion Bs is brought into contact with the stepping point 4a of the brake pedal 4 and can be appropriately operated while maintaining the angle at a substantially appropriate angle. In addition, since the front and rear dimensions of the first heel mounting portion 12 are set shorter than the second heel mounting portion 13 formed at the rear of the accelerator pedal, the short stature person S suddenly pushes the brake pedal 4. In the case of operation, the lever ball part Bs is brought into contact with the stepping point of the brake pedal 4 while effectively preventing the hook part Ks from interfering with the rear end of the first hook mounting part 12. Can be operated suddenly.

  On the other hand, as shown in FIGS. 14 and 15, in the case of a tall person T, if the sole inclination angle θ7 is decreased and the knee angle θ2 is decreased, the buttocks Kt of the operating foot can be moved downward. In addition, it is possible to easily and properly abut the lever ball portion Bt against the stepping point 5a of the accelerator pedal 5. Therefore, by setting the front and rear dimensions of the first rod mounting portion 12 positioned behind the brake pedal to be shorter than the second rod mounting portion 13 positioned behind the accelerator pedal 5, the tall person T Even if the heel placement area for placing the heel portion Kt of the operating foot is set on the substantially horizontal floor portion 8 located behind the second heel placement portion 13, the operability of the accelerator pedal 5 is depressed. Will not be adversely affected. In addition, by configuring the heel placement area of the tall person T by the substantially horizontal floor portion 8, the tall person T can easily recognize the position where the heel part Kt is to be placed.

  Further, in the case of a tall person T, the rear side portion between the brake pedal 4 and the accelerator pedal 5, that is, the rear side portion of the rear end portion of the first saddle placement portion 12 and the second saddle placement. Since the stepping operation on the accelerator pedal 5 and the brake pedal 4 can be performed in a state where the heel portion Kt of the operation foot is positioned on the side portion of the mounting portion 13, the pedal changing operation is the first step. There is an advantage that it is possible to effectively prevent the occurrence of the situation of being obstructed by the first and second rod mounting parts 12 and 13.

  In addition, it replaces with the said embodiment which formed the upward sloping surfaces 15 and 16 in the upper surface of the said 1st, 2nd collar mounting parts 12 and 13, and the 1st, 2nd collar mounting by which the upper surface was formed horizontally. The mounting portion is formed in the saddle placement region, or, as in the second embodiment shown in FIG. 19, the first and second saddle placement portions 12a and 13a composed of step-up steps that are moved upward are placed on the saddle placement. A structure formed in the region can also be used. However, as shown in the first embodiment (FIG. 13 and the like), when the upwardly inclined surfaces 15 and 16 are formed on the upper surfaces of the first and second saddle mounting portions 12 and 13, the driver seat The short stature person S seated in 1 moves the mounting position of the heel part Ks back and forth according to the length of the sole, so that the ankle angle θ1 of the operation foot and the inclination angle θ7 of the sole are set to appropriate angles. While maintaining, each short stature person S having various sole dimensions is finely brought into contact with the stepping point 4a of the brake pedal 4 or the stepping point 5a of the accelerator pedal 5 so that the palm ball portion Bs is accurately abutted. There is an advantage that it can be adjusted.

  In particular, in the first embodiment, the inclination angle α with respect to the horizontal plane of the inclined surface 15 formed on the upper surface of the first saddle mounting portion 12 located behind the brake pedal 4 is located behind the accelerator pedal 5. Since the inclination angle β of the inclined surface 16 formed on the upper surface of the second rod mounting portion 13 is set larger, the front-rear dimension is effectively shortened while maintaining the height of the first rod mounting portion 12. can do. Therefore, a stepping operation on the accelerator pedal 5 or the brake pedal 4 by a tall person who may place the buttocks of the operating foot at a position close to the rear end portion of the first inclined surface portion 12 is performed by the first pedal. There is an advantage that it is possible to prevent the occurrence of the obstruction caused by the presence of the saddle placement portion 12. In addition, when the short person S operates the brake pedal 4 as described above, the ankle angle θ1 and the sole of the foot are placed by placing the heel part Ks of the operating foot on the first heel placing part 12. The tilting ball portion Bs can be brought into contact with the stepping point 4a of the brake pedal 4 while maintaining the inclination angle θ7 of the brake pedal 4 at an appropriate angle.

  Further, as shown in the embodiment, between the first rod mounting portion 12 located behind the brake pedal 4 and the second rod mounting portion 13 located behind the accelerator pedal 5, both are connected. In the case where the connecting portion 14 that is gently connected is formed, the short stature person S who has placed the heel portion Ks of the operating foot on the second heel placing portion 13 at the normal time from the operation state with respect to the accelerator pedal 5. When shifting to the operation state for the brake pedal 4, there is an advantage that the pedal changing operation can be smoothly executed along the connecting portion 14.

  In addition, by providing an arc-shaped continuous portion at the rear end portion of the pad member 11 constituting the first and second rod mounting portions 12 and 13, the first and second rod mounting portions 12 and 13 and Further, the substantially horizontal plane (floor portion 8) at the rear thereof can be gently continued. However, as shown in the above-described embodiment (see FIGS. 3 and 4), a valley-like fold extending in the vehicle width direction between the first and second rod mounting parts 12, 13 and the floor part 8 is possible. When the portions 17 and 18 are formed, it is possible to make the driver sitting on the driver's seat 1 recognize the boundary between the first and second saddle placement portions 12 and 13 and the floor portion 8. . Therefore, it is possible to make the driver properly grasp at which position the buttocks of the operating foot should be placed with the valley-folded bent portions 17 and 18 as a reference.

  Moreover, in the said embodiment, while moving the driver's seat 1 back and forth, the front-rear position adjustment mechanism 2 and the inclination angle adjustment mechanism 3 which reduce the back inclination angle of the seat cushion 1a according to the front movement of this 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, the driver's buttocks are mounted. By forming the first and second heel mounting portions 12 and 13 whose upper surfaces are raised higher than the other regions in a part of the heel mounting region to be placed, the short stature person S having a short sole size operates. With the heel part Ks of the foot placed on the first and second heel rest parts 12 and 13, the ankle angle θ1 and the inclination angle θ7 of the sole are maintained at angles suitable for the operation of the accelerator pedal 5. On the other hand, there is an advantage that the operability of the pedal can be ensured by bringing the palm ball portion Bs of the short stature S into contact with the stepping point 5a of the accelerator pedal 5.

  In the above 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. Although an example in which the rearward tilt angle of the seat cushion 1a is reduced in accordance with the forward movement of the seat 1 has been described, the front / rear position of the driver seat 1 and the rearward tilt angle of the seat cushion 1a are manually operated by the driver. You may comprise so that may be changed.

  Further, by fixing the pad member 11 on the floor portion 8 via an adhesive or a fixing bolt, the upper surface is in another region in a part of the heel mounting region where the driver's heel is mounted. In place of the above-described embodiment in which the first and second ridge mounting portions 12 and 13 are formed to be higher than the above-mentioned embodiment, the driver seat floor mat member is laid on the floor portion 8 and is locked. The second ridge mounting portions 12, 13 and the like may be provided.

It is explanatory drawing which shows 1st 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 explanatory drawing which shows the heel mounting state of an average stature person and a short stature person. It is a side view which shows the sitting state of a tall person and an average tall person. It is explanatory drawing which shows the height mounting state of a tall person. It is a top view which shows the variation in the heel mounting position. It is a top view which shows the pedal operation state of a short stature. It is a top view which shows the pedal operation state of a tall person. FIG. 5 is a view corresponding to FIG. 4 showing a second 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 5 Accelerator pedal 4a, 5b Depression point 8 Substantially horizontal floor part 12 1st rod mounting part 13 2nd rod mounting part 14 Connection Part 15, 16 Inclined surface

Claims (4)

  A floor structure of an automobile driver's seat in which a brake pedal and an accelerator pedal, which are operated by a driver's operating feet seated on a driver's seat, are disposed in the front of the passenger compartment, and the brake pedal and the accelerator pedal are depressed. On the floor located behind the point, there is provided a heel placement area on which the heel of the operation foot is placed, and the upper surface of the heel placement area is raised above other areas. A saddle placement portion is formed, and the front-rear dimension of the first saddle placement portion located behind the brake pedal is set shorter than the front-rear dimension of the second saddle placement portion located behind the accelerator pedal. The floor structure of the driver's seat, which is characterized by that.   The floor structure of a driver's seat according to claim 1, wherein the upper surface of the eaves mounting portion is formed as an inclined surface that rises forward.   The inclination angle of the inclined surface formed on the upper surface of the first rod mounting portion located behind the brake pedal with respect to the horizontal plane is the inclination formed on the upper surface of the second rod mounting portion located behind the accelerator pedal. The floor structure of an automobile driver's seat according to claim 2, wherein the floor structure is set to be larger than an inclination angle of the surface.   A connecting portion is formed between the first rod placement portion located behind the brake pedal and the second rod placement portion located behind the accelerator pedal. The floor structure of the automobile driver's seat according to any one of claims 1 to 3.

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