JP5277666B2 - Car driver's seat floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and properly adjust a driving posture with a simple composition so that a driver seated on a driver's seat can properly operate an operation pedal. <P>SOLUTION: In this floor structure of an automobile driver's seat, a brake pedal 4 operated by stepping by an operation foot of the driver seated on the driver's seat 1 and an accelerator pedal 5, are arranged in a cabin front part. A movable floor part 12 is movably supported in the longitudinal direction of a vehicle body in a heel placing area of the operation foot arranged on a substantially horizontal floor surface 8 positioned in the rear of stepping points 4a and 5a of the brake pedal 4 and the accelerator pedal 5. An inclined face part 21 inclined in an anterosuperior direction is formed on an upper surface of this movable floor part 12. <P>COPYRIGHT: (C)2009,JPO&amp;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.

In addition, as shown in Patent Document 2 below, in a footrest structure for a vehicle occupant provided with a receiving member that supports the buttocks of an operating foot that operates an operating pedal such as an accelerator pedal and restricts the forward movement thereof. The receiving member laid on the floor panel is detachably attached to the floor mat.
JP 2005-145405 A JP 2005-313746 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 can be adjusted by the floor panel position adjusting means. When it is configured to be adjustable, there is a problem that the structure of the adjusting device is complicated and the manufacturing cost increases. 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, when the mounting position of the footrest is changed with respect to the floor mat, the accelerator pedal or the like is changed according to the change in the sole size of the driver. By changing the operation angle, that is, the inclination angle of the sole with respect to the horizontal plane, there is an advantage that the pedal operability can be ensured by making it possible to bring the lever ball portion of the sole into contact with the depression point of the accelerator pedal.

  However, when the operation angle with respect to the accelerator pedal or the like is changed in accordance with the change in the sole size of the driver as described above, the inclination angle of the sole with respect to the horizontal plane deviates from the optimum angle. As a result, there is a problem that pedal operability is inevitably deteriorated. That is, when the driver operates the pedal with the buttocks placed on the floor panel, the operating direction of the toe is the stepping point of an accelerator pedal or the like that is supported so as to be swingable about the rotation support shaft. It is desirable to match the swinging direction, and if a large deviation occurs between the swinging direction of the stepping point and the operating direction of the foot, the foot ball part of the sole is separated from the stepping point such as an accelerator pedal. As a result, the pedal operability is inevitably deteriorated. In addition, the ankle angle of the operation foot also changes in response to the change in the operation angle of the sole with respect to the accelerator pedal, etc., and the pedal operability deteriorates due to the deviation of the ankle angle from the appropriate angle. there were.

  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, substantially horizontal floor surface located behind the depression point of the brake pedal and the accelerator pedal, the heel placing area of the operation a foot provided on the floor surface, is movably supported in the longitudinal direction of the car body A movable floor portion and a floor drive mechanism that drives the movable floor portion to move back and forth in conjunction with the forward and backward movement of the driver seat, and the upper surface of the movable floor portion is inclined forward and upward. surface is formed, the height difference Y heel position corresponding to the foot size difference of the driver sitting in the driver's seat, the inclination angle α with respect to the horizontal plane of the inclined surface, slope of sole surface with respect to the horizontal plane Based on the angle beta, control characteristics for setting a longitudinal movement distance X of the movable floor portion is one that is set to X = Y (1 / tanα- 1 / tanβ).

Invention is the floor structure of the motor vehicle driver's seat according to the claim 1, movable in the movable floor portion, the front side of the ingress-egress opening formed in the side surface of the vehicle cabin according to claim 2 It has been done.

  In the invention according to the first aspect, the inclined floor portion inclined upward is provided on the movable floor portion, and the movable floor portion is configured to be movable in the front-rear direction of the vehicle body. When a short short person sits on the driver's seat, the short person puts the buttocks of the operating foot on the inclined surface part of the movable floor part by moving the movable floor part to the front side of the vehicle body. In this state, the lever ball portion of the operating foot can be brought into contact with the stepping point of the accelerator pedal while maintaining the ankle angle and the inclination angle of the sole at appropriate angles. Therefore, in the state where the short stature has separated the buttocks of the operating foot from the floor surface, subtle pedal operation becomes impossible due to the operation of the operation pedal consisting of an accelerator pedal, etc. There is an advantage that the operation pedal can be easily and appropriately depressed without making it difficult to quickly depress the operation pedal due to the ankle angle and the inclination angle of the sole being greatly deviated from the appropriate angle. .

In addition, since the floor drive mechanism that drives the movable floor portion to move back and forth in conjunction with the back-and-forth movement of the driver seat is provided, the driver sitting on the driver seat seats the seat cushion according to its height. By moving in the front-rear direction, the eye point is aligned with the appropriate line, and each driver moves the buttocks of the operating foot in accordance with the operation to ensure operability with respect to the steering handle etc. In the state of being placed on the above, the lever angle of the operation foot can be brought into contact with the stepping point of the accelerator pedal, etc. while maintaining the ankle angle and the inclination angle of the sole at an appropriate angle. There is an advantage that the front-rear position of the movable floor portion and the vertical position of the saddle placement portion can be automatically adjusted.

Further, based on the vertical difference of the heel position according to the difference in sole dimensions of the driver seated on the driver's seat, the inclination angle of the inclined surface portion with respect to the horizontal plane, and the inclination angle of the sole surface with respect to the horizontal plane, the movable floor portion Since the control characteristic for setting the back-and-forth movement distance X is set to X = Y (1 / tan α-1 / tan β), the driver sitting on the driver's seat seats the ankle angle of the operating foot and the inclination angle of the sole The front and rear position of the movable floor portion is set to the front and rear movement distance X so that the pedal operation can be performed in a state where the lever ball portion is in contact with the stepping point of the accelerator pedal while maintaining the appropriate angle. There is an advantage that it can be accurately adjusted based on the calculated value.

In the invention according to the second aspect, since the movable floor portion is configured to be movable to the front side of the opening for getting on and off formed on the side surface of the passenger compartment, the movable floor portion is set to the front side of the opening for getting on and off. Even when the floor surface of the passenger compartment is relatively located on the upper side of the vehicle body, the feet of the movable floor portion are used when the passenger gets on and off the driver seat. The above-mentioned getting-on / off operation can be performed smoothly.

  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. 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 surface 8 extending to the rear side of the vehicle body. On the upper surface of the floor surface 8, a conventionally well-known floor trim material (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 4 a that are pushed by a lever ball portion (a bulging portion located at the base portion of the thumb) of the driver's operating foot seated on the driver seat 1. On the floor surface 8 located on the rear side of the vehicle body relative to the vehicle body 5a, there is provided a saddle placement region on which the saddle of the driver seated on the driver's seat 1 is placed. A floor support 11 is installed on the saddle placement area, and a movable floor 12 is supported on the floor support 11 so as to be movable in the front-rear direction.

  The floor support 11 includes a base plate 13 fixed on the floor surface 8, a standing wall 14 provided on the right side of the base plate 13, and a cover that is detachably attached so as to cover the left side portion of the base plate 13. And a cover 15. A pair of left and right guide grooves 16 that support the movable floor portion 12 so as to be movable back and forth are formed on the substrate 13, and a floor drive mechanism 17 that drives the movable floor portion 12 to move back and forth. , Installed on the left side of the substrate 13. The covering cover 15 includes a side covering portion 15 a that covers an installation portion of the floor driving mechanism 17, and an upper surface front portion of the movable floor portion 12 that is an upper surface covering portion 15 b.

  The movable floor portion 12 includes a pair of left and right side plates 18 and 19 formed in a trapezoidal shape in a side view, a top plate 20 extending in the vehicle width direction so as to connect the upper surfaces of the side plates 18 and 19, It has an inclined surface portion 21 that is connected to the rear end portion of the plate 20 and inclines upward, and a protruding portion 22 that protrudes from the side plate 18. The inclined angle α of the inclined surface portion 21 with respect to the horizontal plane is 13. For example, it is set to about 18.5 ° within a range of 5 ° to 23.5 °. The lower end portions of the side plates 18 and 19 are fitted into the guide grooves 16 of the floor support 11 so that the movable floor portion 12 is slidably supported along the guide grooves 16. ing.

  The floor drive mechanism 17 is fixed to the screw shaft 23 screwed into the screw hole formed in the protrusion 22 projecting from the side plate 18 of the movable floor portion 12 and the substrate 13 of the floor support base 11. A pair of front and rear bearings 24 and 25 that rotatably support the screw shaft 23, a drive gear 27 that meshes with a driven gear 26 fixed to the screw shaft 23, and the drive gear 27 are fixed to the output shaft. Drive motor 28. The drive motor 28 of the floor drive mechanism 17 is controlled in accordance with preset drive characteristics, which will be described later, so as to move the movable floor portion 12 back and forth in conjunction with the back and forth movement operation by the seat adjustment mechanism. The screw shaft 23 is configured to rotate.

  As shown in FIGS. 5 to 7, the driver seat 1 is provided with 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, and the seat slide lower rail 41. 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 on 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 surface 8 in a state where it is slightly inclined upward. ing.

  In the left and right seat slide lower rails 41, as shown in FIG. 7, a rotary shaft 45 consisting of a screw shaft is rotatably installed, and between the front end portions of the left and right seat slide upper rails 42 is driven. 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 seat 1 by slidingly displacing the seat cushion 1a of the driver seat 1.

  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 portion 8 in a state where the seat slide lower rail 41 is tilted forwardly, the seat slide upper rail 42 and the seat cushion 1a of the driver seat 1 are attached to the front / rear position adjusting mechanism 2. When the vehicle is moved forward along the seat slide lower rail 41, 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. 5 and 6, 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 1 a and 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. 8 and 9, the tilt drive unit 62 includes a screw shaft 64 whose front end portion is connected to the 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 central 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 rearward tilt 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. 5, 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 30 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. 11, the ankle angle θ1 is about 85 ° to 95 °, the knee angle θ2 is about 115 ° to 135 °, and the upper body and the thigh are folded 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 30 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 sole angle of the foot that can be operated, that is, the inclination angle β 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 armpit angle θ6 are set within the above range so that the steering handle 30 can be properly gripped, and the heel portion Km of the operation foot is The lever ball portion Bm of the operating foot can be brought into contact with the depression point 5a of the accelerator pedal 5 at an appropriate sole angle β (52 °) while being placed at a preset reference position. ing.

  In FIG. 11, Hm is the hip point (sitting reference point) of the average height person M seated on the driver's seat 1. Further, as shown in FIG. 12, the heel portion Km of the average stature person M is located on the inclined surface portion 21 of the movable floor portion 12 installed on the heel placement region located on the floor surface 8, and The front-rear reference position of the movable floor portion 12 is set so as to be placed at a position behind the intermediate position in the direction.

  When the driver seated on the driver 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. 11, 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 30 can be gripped in an appropriate state, and the sitting height is low compared to 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, while maintaining the ankle angle θ1 at 90 ° and maintaining the inclination angle β of the sole at an appropriate angle (52 °), the short stature S accelerators the lever ball portion Bs of the operating foot. The pedal 5 can be brought into contact with the depression point 5a.

  As shown in FIG. 12, since the distance (about 155 mm) from the buttocks Ks of the short stature S to the lion ball Bs is about 25 mm shorter than the same distance (about 180 mm) of the average stature M, A state where the palm ball portion Bs of the operating foot is in contact with the stepping point 5a of the accelerator pedal 5 while maintaining the ankle angle θ1 and the inclination angle β of the sole of the short stature S at the angle (52 °). If it is going to be maintained, it is necessary to position the buttock Ks above the buttock Km of the average height person M by a predetermined distance Y (= 25 mm × sin 52 °).

  Therefore, based on the vertical difference Y of the heel position according to the difference in sole dimensions of the driver seated on the driver's seat 1, the inclination angle α of the inclined surface portion 21 with respect to the horizontal plane, and the inclination angle β of the sole surface with respect to the horizontal plane. The longitudinal movement distance X of the movable floor portion 12 is set according to the control characteristic X = Y (1 / tan α-1 / tan β) set in the above. Then, by rotating the drive motor 28 so as to move the movable floor 12 to the front side of the vehicle body from the front-rear reference position by the distance X, the short stature person S sitting on the driver's seat 1 As shown in FIG. 13, the lever ball portion Bs can be brought into contact with the stepping point 5 a of the accelerator pedal 5 in a state where the heel portion Ks of the operating foot is placed on the inclined surface portion 21 of the movable floor portion 12. It becomes possible.

  For example, as shown in the above embodiment, the average height person M sitting on the driver's seat 1 with the inclination angle α of the inclined surface portion 21 set to 18.5 ° and the inclination angle β of the sole set to 52 °. When the vertical difference Y of the heel position according to the sole size difference between the short stature S and the short stature S is 19.7 mm, the forward movement distance X of the movable floor portion 12 is set to about 43.5 mm based on the control characteristics. If set, while the short stature S has placed the buttocks Ks of the operating foot on the inclined surface portion 21 of the movable floor portion 12, while maintaining the sole angle β and the ankle angle θ1 at appropriate angles, The lever ball portion Bs of the operating foot can be brought into contact with the stepping point 5a of the accelerator pedal 5.

  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 having a longer hand compared to the average tall person M can be moved rearward to grip the steering handle 30 in an appropriate state, and the height of the sitting height higher than that of the average tall person M is high. 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. In addition, by moving the movable floor portion 12 to the front side of the vehicle body, the ankle angle θ1 of the operating foot is maintained at 90 °, and the inclination angle β of the sole is maintained at an appropriate angle of about 52 °. The tall person T can bring the lever ball part Bt of the operating foot into contact with the stepping point 5 a of the accelerator pedal 5.

  That is, as shown in FIG. 15, the distance (about 195 mm) from the buttocks Kt of the tall person T to the lion ball part Bt is about 15 mm longer than the same distance (about 180 mm) of the average tall person M. Therefore, while maintaining the ankle angle θ1 and the inclination angle β of the sole of the tall person T at the above-described angles, the lever ball portion Bt of the operation foot is maintained in contact with the stepping point 5a of the accelerator pedal 5. In order to achieve this, it is necessary to position the buttock Kt below the average height M's buttock Km by about 11.8 (= sin 52 ° × 1.5) mm.

  Therefore, the vertical difference Y (= 11.8 mm) of the heel position corresponding to the difference in sole dimensions between the average height person M and the tall person T sitting on the driver's seat 1 and the control characteristic (X = Y (1 / Tan α-1 / tan β)), the longitudinal movement distance X of the movable floor portion 12 is set to about 25.9 mm. Then, by controlling the rotation of the drive motor 28 so as to move the movable floor portion 12 from the front / rear reference position by a distance X to the front side of the vehicle body, the tall person T sitting on the driver's seat 1 As shown in FIG. 15, in the state where the heel portion Kt of the operation foot is placed on the inclined surface portion 21 of the movable floor portion 12, while maintaining the sole angle β and the ankle angle θ1 at appropriate angles, The insulator ball part Bt can be brought into contact with the stepping point 5a of the accelerator pedal 5.

  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 can be moved in the front-rear direction of the vehicle body in the heel-mounting area of the operating foot provided on the substantially horizontal floor surface 8 located behind the step-on points 4a, 5a. In addition, the inclined surface portion 21 inclined upward is formed on the upper surface of the movable floor portion 12 so that the driver sitting on the driver's seat 1 properly operates the operation pedal including the brake pedal 4 and the accelerator pedal 5. The driving posture can be adjusted easily and appropriately with a simple configuration so that it can be operated.

  That is, in the above-described embodiment, the movable floor portion 12 is provided with the inclined surface portion 21 inclined upward in the range of 13.5 ° to 23.5 °, for example, at an inclination angle α of 18.5 °. Since the portion 12 is configured to be movable in the front-rear direction of the vehicle body, the movable floor portion 12 can be moved to the rear of the vehicle body when a short stature S having a short sole dimension compared to the average height person M is seated on the driver's seat 1. By moving the heel portion Ks of the operating foot on the inclined surface portion 21 of the movable floor portion 12, the ankle angle θ 1 and the inclination angle β of the sole are set to appropriate angles. The operation foot lever ball part Bs can be brought into contact with the stepping point 5a of the accelerator pedal 5 while maintaining the above. Therefore, it is impossible for the short stature S to 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 β of the sole to greatly deviate from the appropriate angles. There is an advantage that it can be stepped on.

  In addition, by moving the movable floor portion 12 back and forth in accordance with the sole dimensions of the driver seated on the driver's seat 1, the above-mentioned driving is performed without setting the inclination angle α of the inclined surface portion 21 to a very large value. The vertical position of the heel placing portion can be adjusted appropriately and effectively so that a person can place the heel portion of the operating foot on the inclined surface portion 21. For this reason, the inclination angle α of the inclined surface portion 21 is set to a large angle of, for example, 25 ° or more, or the movable floor portion is moved up and down between the movable floor portion 12 and the floor surface 8 positioned below the movable floor portion 12. The pedal operation is performed with all the driver's buttocks resting on the inclined surface portion 21 regardless of the sole size of the operation foot, without taking any measures such as installing the drive mechanism. It can be done properly.

  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.

  And since the floor drive mechanism 17 which drives the said movable floor part 12 to move back and forth in conjunction with the back-and-forth movement of the driver's seat 1 is provided, the driver sitting on the driver's seat 1 can change the seat according to its height. By moving the cushion 1a in the front-rear direction of the vehicle body, the eye point is made to coincide with the appropriate line, and each driver makes the buttocks of the operating foot in response to the above-described operation for ensuring operability with respect to the steering handle 30 or the like. With the ankle angle θ1 and the inclination angle β of the sole kept at appropriate angles while the foot is placed on the inclined surface portion 21 of the movable floor portion 12, the stepping point of the accelerator pedal 5 is set to the lever ball portion of the operating foot. An advantage is that the front-rear position of the movable floor portion 12 and the vertical position of the saddle placement portion can be automatically adjusted so that they can come into contact with 5a or the like. is there.

  Further, as shown in the above embodiment, the vertical difference Y of the heel position according to the difference in sole dimensions of the driver sitting on the driver's seat 1, the inclination angle α of the inclined surface portion 21 with respect to the horizontal plane, and the foot with respect to the horizontal plane Since the control characteristic for setting the longitudinal movement distance X of the movable floor portion 12 is set to X = Y (1 / tan α-1 / tan β) based on the inclination angle β of the back surface, the driver seat 1 is seated. The driver performs the pedal operation while maintaining the ankle angle θ1 and the inclination angle β of the sole at an appropriate angle while the lever part of the operating foot is in contact with the stepping point 5a of the accelerator pedal 5 or the like. Therefore, there is an advantage that the front-rear position of the movable floor portion 12 can be accurately adjusted based on the calculated value of the front-rear movement distance X.

  Further, as shown by the broken line in FIG. 14, it is preferable that the movable floor portion 12 is configured to be movable further forward than the boarding / exit opening portion 31 formed on the side surface of the passenger compartment. In such a configuration, the movable floor 12 is moved to the front side with respect to the opening 31 for getting on and off, so that the floor surface 8 of the passenger compartment is positioned relatively above the vehicle body. Even in this case, it is possible to prevent the driver's feet from coming into contact with the movable floor portion 12 when the passenger gets on and off the driver's seat 1 and to smoothly perform the getting-on / off operation. There is.

  In place of the above-described embodiment in which the movable floor portion 12 is moved back and forth by the floor drive mechanism 17 in conjunction with the back-and-forth movement of the driver's seat 1, the movable floor portion 12 is driven with respect to the floor surface 8. The front and rear positions of the driver's seat 1 and the rearward tilt angle of the seat cushion 1a may be changed by a user's manual operation.

  Further, the movable floor portion 12 is detachably locked on the floor surface 8 by a locking pin or the like, the locked state of the movable floor portion 12 by the locking pin or the like is released, and the front and rear positions thereof are manually operated. After adjusting, the movable floor portion 12 may be supported on the floor surface 8 so that the movable floor portion 12 is supported so as to be movable in the front-rear direction of the vehicle body.

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 side surface sectional drawing which shows the specific structure of a movable floor part. It is a perspective view which shows the specific structure of a movable floor part. It is the IV-IV 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 average height person's heel mounting state. It is explanatory drawing which shows the heel mounting state of a short stature. 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.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 1a Seat cushion 4 Brake pedal 5 Accelerator pedal 4a, 5b Depressing point 8 Substantially horizontal floor surface 11 Movable floor part 21 Inclined surface part 13 2nd foot mounting part 17 Floor drive mechanism 31 Exit for getting on and off

Claims (2)

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 part of the passenger compartment,
A substantially horizontal floor surface located behind the depression point of the brake pedal and accelerator pedal ;
The heel placing area of the operation a foot provided on the floor surface, and a movable floor portion which is movably supported in the longitudinal direction of the vehicle body,
A floor drive mechanism that drives the movable floor portion to move back and forth in conjunction with the back and forth movement of the driver seat;
On the upper surface of the movable floor portion, an inclined surface portion inclined upward is formed ,
The movable floor is based on the vertical difference Y of the heel position according to the sole size difference of the driver seated on the driver seat, the inclination angle α of the inclined surface portion with respect to the horizontal plane, and the inclination angle β of the sole surface with respect to the horizontal plane. A floor structure of a driver's seat, characterized in that the control characteristic for setting the front-rear movement distance X of the section is set to X = Y (1 / tan α-1 / tan β) . The floor structure for a driver's seat according to claim 1 , wherein the movable floor portion is configured to be movable forward from an entrance / exit opening formed on a side surface of a passenger compartment.

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