JP4579945B2 - Footrest device for vehicle seat - Google Patents

Description

  The present invention relates to a footrest device for a vehicle seat, and more particularly to a footrest device for a vehicle seat that improves the comfort and convenience of a space that can be formed between the rear seat and an ottoman.

  2. Description of the Related Art Conventionally, automobiles equipped with an ottoman (a platform on which a foot is placed) have been widely used for improving the comfort of a rear seat (see, for example, Patent Document 1). When this ottoman is provided on the rear seat, the passenger sitting on the rear seat can relax by relaxing and stretching his / her legs on the ottoman.

JP 2005-96644 A

  However, in the case of a sedan, a minivan, or the like, the sliding amount of the rear seat is limited due to restrictions such as the total length and the wheel base length. In this case, as shown in FIG. 7, even if the rear seat 101 is positioned at the rearmost end, a sufficient space S cannot be secured under the feet. Therefore, when the legs are extended using the ottoman 102, the seat back back surface 103 a of the front seat 103 is formed. There were times when my feet touched. Further, in order to sit on the rear seat 101 so that the foot does not come into contact with the seat back back surface 103a in such a foot space, the leg has to be folded to some extent. The original function of can not be demonstrated. Furthermore, if the foot is brought into contact with the seat back back surface 103a while wearing the shoes, the seat back back surface 103a becomes dirty, and the shoe is taken off in that state and the foot is placed on the seat back back surface 103a. If you touch it, your feet will get dirty. The back surface 103a of the seat back is covered with a sheet skin or a resin board or pocket, but the skin gets dirty between the fibers, and the resin board or pocket has a wrinkle on the surface, so the dirt gets into the groove. Since dirt is difficult to remove, it was not easy to clean the dirt.

  The present invention has been made to solve such a conventional problem, and in a vehicle having a rear seat with an ottoman, a movable board is installed on the back of the seat back of the front seat, and a passenger sitting on the rear seat wears shoes. The purpose is to provide a footrest device for a vehicle seat that changes the contact surface of the foot when the vehicle is removed and ensures the comfort of the occupant and allows the back surface of the movable board to be used as a table. And

  The vehicle seat footrest device of the present invention that achieves the above-described object is a vehicle seat footrest device in which a board is mounted on the back surface of a vehicle seatback, the board being disposed between a pair of links, One of the links is pivotally attached at a first pivot point provided on both sides of the back of the seat back, and the first pivot point is engaged with one side of the board, and the other side of each link is the other side of the board In addition, it is disposed below the first pivot point and pivotally attached at a second pivot point provided in a detachable state on both sides of the back surface of the seat back. In addition, the vehicle seat footrest device hangs down the other side of the board together with the other of the links, the first surface is exposed, and the transition is made to the first state where the foot can be contacted with the shoe removed. Then, from the first state, one side of the board is removed from the first pivot point in the direction opposite to the back surface of the seat back and pivoted downward around the second pivot point, and the other of the links is moved upward first. Pivoting 180 degrees around the pivot point of the seat, the side of the board is engaged with the first pivot point, and the foot transitions to the second state where the foot wearing the shoe can contact the back of the seat back, From the state of the board, around the second pivot point that pivots the other side of the board, one side of the board is pivoted upward 90 degrees to hold the board horizontally, and the second side can be used as a table The transition from the third state to the second state, and the reverse transition from the second state to the first state. A. In the present specification, “pivot support” means to support a pivotable portion having a convex portion and a concave portion. “Pivot attachment” means that a convex portion and a concave portion are attached so as to be rotatable. “Pivot” means to move freely with a convex part and a concave part.

  According to the vehicle seat footrest device of the first aspect as described above, when the board is in the first state, the occupant sitting on the vehicle seat moves the one side of the board forward from the first pivot point. The second pivot point is pivoted downward with the second pivot point as the pivot axis, and the other side of each link is pivoted 180 degrees upward with the first pivot point as the pivot axis. Since the board can be shifted from the first state to the second state by engaging with the pivot point, the occupant can contact the foot wearing the shoes on the back of the seat back instead of the board. In addition, when the board is in the second state, an occupant sitting on the vehicle seat removes one side of the board from the first pivot point and moves the one side of the board upward with the second pivot point as a pivot. By pivoting the board 90 degrees to hold the board horizontally, the second side of the board can be used as a table. Further, when the board is in the second state, an occupant seated on the vehicle seat removes one side of the board from the first pivot point and pivots upward with the second pivot point as a pivot. When the other side of each link is pivoted 180 degrees downward with the first pivot point as the pivot axis and one side of the board is engaged with the first pivot point, the board is moved from the second state to the first state. Therefore, the occupant can bring the foot with his shoes off into contact with the first surface of the board.

  According to a second aspect of the present invention, in the vehicle seat footrest device according to the first aspect, the first pivot point is rotatably supported by a support arm and a support arm provided on the back surface of the seat back. It is composed of a first pin, and the second pivot point is composed of a second pin pivotally supported by a lower latch arm provided on the back surface of the seat back and pivotally attached to the other side of the link and the other side of the board. It is what.

  According to such a second aspect of the footrest device for a vehicle seat, since one of the links is supported by the first pin of the support arm provided on the back surface of the seat back, the pair of links The first pin can be used as a pivot, and the second pin that pivots the other side of the link and the other side of the board is pivotally supported by the lower latching arm provided on the back of the seat back The other side of the link and the other side of the board can be removed from the lower latch arm.

  According to a third aspect of the present invention, in the vehicle seat footrest device according to the second aspect, an elongated hole through which the first pin is movably inserted is penetrated in the longitudinal direction in one of the links, The stop arm is formed with a notch that opens upward and hooks the second pin, and the long hole of each link is used when the other side of the board is pivoted from the first state to the second state. In the first state, the second pin latched in the notch of the lower latching arm is formed to have a length that allows the board to be lifted upward together with the pair of links so as to be detached from the notch.

  According to the footrest device for a vehicle seat according to the third aspect as described above, when the board is lifted upward together with the pair of links, the long holes of the pair of links move upward along the first pin. A second pin pivotally attached to the other side of the link can be disengaged from the notch of the lower latching arm and the other side of the board can be pivoted from the first state to the second state.

  According to a fourth aspect of the present invention, there is provided the vehicle seat footrest device according to the third aspect, wherein the rear surface of the seat back is positioned above the pair of support arms and a pair of the same shape as the pair of lower latch arms. An upper latch arm is provided, and when the other side of the board is pivoted from the second state to the first state, the upper latch arms are installed in the second state. The second pin hooked on the notch of the arm is a position where the board can be detached from the notch by lifting the board upward together with the pair of links.

  According to the footrest device for a vehicle seat according to the fourth aspect as described above, when the board is lifted upward together with the pair of links, the long holes of the pair of links move upward along the first pin. A second pin pivotally attached to the other side of the link can be removed from the notch of the upper latching arm, and the other side of the board can be pivoted from the second state to the first state.

  According to a fifth aspect of the present invention, in the footrest device for a vehicle seat according to the fourth aspect, the side surface with which the first pin of the board is engaged is movably engaged with the first pin. An oval groove is formed in the longitudinal direction, and the oval groove is provided with a notch for removing one side of the board from the first pin, leaving two arc portions located on both sides. It is what has been.

  According to such a fifth aspect of the footrest device for a vehicle seat, when the board is in the first state, the first pin engages with the arc portion located on one side of the board of the oval groove. When the board is in the second state, the first pin engages with the arc portion located on the other side of the oval groove, and in this state, the occupant sitting on the vehicle seat holds the board When it is lifted upward and pulled forward, the first pin can be removed from the notch provided in the oval groove, so that one side of the board can be pivoted.

  According to a sixth aspect of the present invention, in the vehicle seat footrest device according to any one of the first to fifth aspects, the board is pivoted upward 90 degrees to horizontally move the board horizontally. When the transition is made to the third state in which the second surface can be used as a table, the engaging member that engages with the link can be moved to the first surface of the board to hold the board in that state. It is provided.

  According to the vehicle seat footrest device of the sixth aspect, when the board is pivoted, the engaging member can be moved to a position that does not interfere with the link, and the board is in the third state. When the transition is made, the engaging member can be moved from the first surface of the board on the back side to the position where the engaging member is engaged with the link, and the board can be held in that state.

  According to a seventh aspect of the present invention, in the vehicle seat footrest device according to the first aspect, a recess is formed on the back surface of the seat back so that the board can be stored in either the first state or the second state. It is what has been.

  According to such a seventh aspect of the footrest device for a vehicle seat, the board can be stored in the recess formed on the back surface of the seat back in the first state and the second state. Can be expanded.

  According to an eighth aspect of the present invention, in the vehicle seat footrest device according to the first aspect, a carpet is attached to the first surface of the board.

  According to the footrest device for a vehicle seat according to the seventh aspect as described above, the foot with the shoes removed can be brought into contact with the cushioned carpet, so that a comfortable and relaxing feeling can be obtained. .

  According to the footrest device for a vehicle seat of the present invention, the comfort of the occupant is ensured by changing the contact surface of the foot with respect to the surface of the board when the occupant sitting on the rear seat wears shoes and when the shoe is removed. At the same time, the back side of the board can be used as a table.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the vehicle seat footrest device of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1, 2A, 2B, and 3, the footrest device for a vehicle seat according to the present invention is provided on a seat back rear surface 21 of a vehicle seat, particularly a front seat 2 of an automobile. The board 3 is arranged between the pair of links 4 and 4 on the back surface 21 of the seat back, which is suitable when the occupant who rides on the rear seat slowly extends his / her leg to the ottoman. The ottoman is installed on the rear seat itself or on the floor located between the front seat and the rear seat.

  One link 4 a of each link 4, 4 is pivotally attached at a first pivot point 5 provided on both sides of the seat back rear surface 21, and the first pivot point 5 engages a side surface 31 a in the direction of one side 3 a of the board 3. is doing. The other 4 b of each link 4, 4 is arranged below the first pivot point 5 together with the side surface 31 b in the direction of the other side 3 b of the board 3, and is provided in a detachable state on both sides of the seat back rear surface 21. It is pivotally attached at the pivot point 6

  The board 3 arranged between the pair of links 4 and 4 in such a configuration has a first surface of the board 3 when the other side 3b of the board 3 is suspended together with the other 4b of each link 4 and 4. 3c is exposed and transitions to a first state in which the foot that has taken off the shoes can touch. Further, from the first state, one side 3a of the board 3 is removed from the first pivot point 5 in the direction opposite to the seat back back surface 21 and pivoted downward around the second pivot point 6 and each link 4, 4 when the other side 4b of the board 4 is pivoted 180 degrees around the first pivot point 5 and the side 3a of the board 3 is engaged with the first pivot point 5, the foot wearing the shoes is seated. It changes to the 2nd state which can contact back back 21. Further, the board 3 is held horizontally by pivoting one side 3a of the board 3 upward 90 degrees around the second pivot point 6 pivoting the other side 3b of the board 3 from the second state. In this case, the second surface 3d of the board 3 transitions to a third state that can be used as a table. The board 3 can also make a reverse transition from the third state to the second state and from the second state to the first state.

  Next, the specific configuration of the footrest device for a vehicle seat according to the present invention will be described in detail.

  The first pivot point 5 includes a support arm 51 provided on the back surface 21 of the seat back and a first pin 52 that is rotatably supported by the support arm 51. In this way, since the first pin 52 of the support arm 51 provided on the back surface 21 of the seat back supports the one side 4 a of the link 4, the pair of links 4 and 4 rotate the first pin 52. Can be an axis. The second pivot point 6 is pivotally supported by a lower latching arm 61 provided on the back surface 21 of the seat back, and is pivotally attached to the other side 4b of the link 4 and the side surface 31b in the direction of the other side 3b of the board 3. It consists of pins 62. Thus, the second pin 62 that pivots the other side 4b of the link 4 and the other side 3b of the board 3 is pivotally supported on the lower latching arm 61 provided on the back surface 21 of the seat back. The other side 4b of the board 3 and the other side 3b of the board 3 can be detached from the lower latch arm 61. The second pin 62 is rotatably supported on the other side 4 b of the link 4 and is fixed to the side surface 31 b on the other side 3 b of the board 3.

  A long hole 4c through which the first pin 52 is movably inserted is penetrated in one of the links 4 and 4a in the longitudinal direction. Further, the lower latching arm 61 is formed with a notch 61 a that opens upward and latches the second pin 62. When the other side 3b of the board 3 is pivoted from the first state to the second state, the long hole 4c of the link 4 is a second hole that is hooked on the notch 61a of the lower hooking arm 61 in the first state. The pin 62 is formed in such a length that it can be detached from the notch 61a by lifting the board 3 together with the pair of links 4 and 4 upward. With this configuration, when the board 3 is lifted upward together with the pair of links 4, 4, the long hole 4 c of the pair of links 4, 4 moves upward along the first pin 52. The second pin 62 pivotally attached to the other 4 b can be detached from the notch 61 a of the lower latch arm 61. Therefore, the other side 3b of the board 3 can be pivoted from the first state to the second state.

  Further, the seat back rear surface 21 is provided with a pair of upper retaining arms 63 and 63 which are located above the pair of supporting arms 5 and 5 and have the same shape as the pair of lower retaining arms 61 and 61. That is, the pair of upper latch arms 63 and 63 are each formed with a notch 63 a that opens upward and latches the second pin 62. When the other side 3b of the board 3 is pivoted from the second state to the first state, the pair of upper retaining arms 63 and 63 are installed in the notch 63a of the upper retaining arm 63 in the second state. The second pin 62 that is hooked on the board 3 is a position where the board 3 can be detached from the notch 63a by lifting the board 3 together with the pair of links 4 and 4 upward. With this configuration, when the board 3 is lifted upward together with the pair of links 4, 4, the long hole 4 c of the pair of links 4, 4 moves upward along the first pin 52. The second pin 62 pivotally attached to the other 4 b can be detached from the notch 63 a of the upper latch arm 63. Therefore, the other side 3b of the board 3 can be pivoted from the second state to the first state.

  In addition, on the side surfaces 31a and 31a with which the first pin 52 of the board 3 is engaged, an elliptical groove 32 that is movably engaged with the first pin 52 is formed in the longitudinal direction. The oval groove 32 is provided with notches 33a and 33b for removing one side 3a of the board 3 from the first pin 52, leaving two arc portions 32a and 32b located on both sides. With this configuration, when the board 3 is in the first state, the first pin 52 engages with the arc portion 32a located on the side 3a side of the board 3 of the oval groove 32, and the board 3 is in the first state. In the state 2, the first pin 52 engages with the arc portion 32b located on the other side 3b side of the board 3 of the oval groove 32, and the occupant seated on the rear seat (not shown) in these states When the board 3 is lifted upward and pulled forward, the first pin 52 can be removed from the notch 33 b provided in the oval groove 32. Therefore, the side 3a of the board 3 can pivot.

  Further, when the board 3 is pivoted 90 degrees upward to hold the board 3 horizontally and its second surface 3d is shifted to a third state where it can be used as a table, the board 3 is An engaging member 7 that engages with the link 4 to be held in this state is provided on the first surface 3c of the board 3 so as to be movable. For example, the arm 7 as an engaging member is installed on the first surface 3c of the board 3 so as to be capable of rotating and reciprocating. With this configuration, when the board 3 is pivoted, the arm 7 can be moved to a position that does not interfere with the link 4, and when the board 3 is changed to the third state, it is on the back side. The board 7 can be held in this state by moving the arm 7 from the first surface 3 c of the board 3 to a position where the arm 7 is engaged with the link 4.

  In addition, it is good for the seat back back surface 21 to form the recessed part 21a which can accommodate the board 3 in any of a 1st state and a 2nd state. By configuring in this way, the board 3 can be stored in the recess 21a formed in the seat back rear surface 21 in the first state and the second state, so that the space at the foot can be expanded. A carpet is attached to the first surface 3 c of the board 3. By comprising in this way, since the leg which took off shoes can be made to contact a cushioning carpet, a comfortable relaxed feeling can be obtained.

  The specific operation of the footrest device 1 for a vehicle seat according to the present invention configured as described above will be described in detail below with reference to FIG. 1 together with FIGS.

  In order for the occupant seated in the rear seat to transition the board 3 of the front seat 2 from the first state to the second state as shown in FIGS. The first pin 52 engaged with one arc portion 32a of the oval groove 32 formed on the side surface 31a in the direction of the one side 3a of the board 3 is moved to the notch 33b, and the board is moved to that position. Since 3 can be pulled forward and removed from the first pin 52 along the notch 33b, one side 3a of the board 3 can pivot. In this state, the second pin 62 of the pair of links 4 and 4 is also detached from the notch 61a of the lower latching arm 61. Therefore, the other 4b of the link 4 is pivoted with the first pin 52 as the rotation axis. It becomes possible to move.

  In this state, the one side 3a of the board 3 is pulled toward the front to rotate downward with the second pin 62 as the rotation axis, and the other 4b of the pair of links 4 and 4 is pulled toward the first to When the pin 52 is rotated upward about the rotation axis, the board 3 can have the second surface 3d on the front side. Then, the board 3 is lifted together with the pair of links 4, 4, and the notch 33 a formed on the side surface 31 a on the side 3 a side of the board 3 is moved to the first pin 52. 32 can be engaged with the first pin 52. Further, since the second pin 62 can also be moved above the notch 63a of the upper latch arm 63, the board 3 is moved down together with the pair of links 4 and 4 to the side surface 31a on the side 3a side of the board 3. It is possible to engage with the other arc portion 32b of the formed oval groove 32.

  Since the board 3 can be moved from the first state to the second state by operating in this way, the occupant can contact the foot with the shoes on the back surface 21 of the seat back instead of the board 3 and is comfortable. Sex is secured. In addition, the surface of the seat back rear surface 21 is not attached with a sheet skin or subjected to embossing so as to easily remove dirt.

  Further, when the board 3 is in the second state, the occupant seated in the rear seat changes the board 3 from the second state to the third state as shown in FIGS. The first pin 52 engaged with the other arcuate portion 32b of the oval groove 32 formed on the side surface 31a on the side 3a side of the board 3 is lifted together with the pair of links 4 and 4 to the notch 33a. At this position, the board 3 is pulled forward to remove it from the first pin 52 along the notch 33a, and the board 3 is lowered together with the pair of links 4 and 4 so that the second pin 62 is hooked on the top. Engage with the notch 63 a of the stop arm 63. Then, the other side 4b of the pair of links 4 and 4 is hooked on the upper hooking arm 63, and the side 3a of the board 3 is pivoted 90 degrees upward with the second pin 62 as the rotation axis. In order to hold the board 3 horizontally, the arm 7 installed on the first surface 3 c of the board 3 is pulled out and engaged with the link 4.

  By operating in this way, the board 3 can be transitioned from the second state to the third state, so that the second surface 3d of the board 3 can be used as a table.

  In order to change the board 3 from the third state to the second state, the arm 7 installed on the first surface 3c of the board 3 is moved away from the link 4 as shown in FIGS. Then, the side 3a of the board 3 is pivoted 90 degrees downward with the second pin 62 as a pivot axis and is raised, and the notch 33a formed on the side surface 31a on the side 3a side of the board 3 is moved to the first side. The board 3 is moved to the pin 52, and the board 3 is brought into the second state by engaging the oval groove 32 of the board 3 with the first pin 52 through the notch 33a.

  In order to change the board 3 from the second state to the first state, as shown in FIGS. 5 and 4, the board 3 is lifted together with the pair of links 4 and 4, and the board 3 is moved in the direction of one side 3 a. The first pin 52 engaged with the other arc portion 32b of the oval groove 32 formed on the side surface 31a is moved to the notch 33a, and the board 3 is pulled forward at that position along the notch 33a. Therefore, the side 3a of the board 3 can be pivoted. In this state, the second pin 62 of the pair of links 4 and 4 is also detached from the notch 63a of the upper latching arm 63, so that the other 4b of the link 4 is pivoted with the first pin 52 as the rotation axis. It becomes possible to move.

  In this state, by pulling the one side 3a of the board 3 forward, the second pin 62 is rotated upward, and the other 4b of the pair of links 4, 4 is pulled forward. When the pin 52 is rotated downward about the rotation axis, the board 3 can have the first surface 3c on the front side. Then, the board 3 is lifted together with the pair of links 4 and 4, and the notch 33 b formed on the side surface 31 a on the side 3 a side of the board 3 is moved to the first pin 52. 3 oval grooves 32 can be engaged with the first pin 52. Further, since the second pin 62 can also be moved above the notch 61a of the lower latching arm 61, the board 3 is moved down together with the pair of links 4 and 4 to the side surface 31a on the side 3a side of the board 3. It is possible to engage with one arc portion 32a of the formed oval groove 32.

  By operating in this manner, the board 3 can be changed from the second state to the first state, so that the occupant can contact the first surface 3c of the board 3 with his / her foot removed.

  As described above, the footrest device for a vehicle seat according to the present invention can easily change the footrest surface when the shoe is put on and taken off. You can stretch your legs without worrying. In addition, by setting the footrest, the posture of the occupant during traveling of the vehicle is stabilized and the footrest can be used as a table.

  In the above-described vehicle seat footrest device of the present invention, the front seat and the rear seat have been described based on a vehicle such as a sedan, but the present invention is not limited thereto, and a vehicle such as a three-row seat minivan may be used. In this case, the operation and effect of the present invention can be obtained even if the ottoman is used on the third seat by installing not only the front seat but also the back surface of the second seat.

  Further, in the above-described vehicle seat footrest device according to the present invention, the carpet is attached to the first surface 3c of the board 3 that comes into contact with the foot from which the shoes have been removed. Any material can be used as long as it is comfortable to touch the foot such as leather.

  Although the present invention has been described with the specific embodiments shown in the drawings, the present invention is not limited to the embodiments shown in the drawings, and is known so far as long as the effects of the present invention are achieved. It goes without saying that any configuration can be adopted.

1 is a perspective view illustrating a preferred embodiment of a footrest device for a vehicle seat according to the present invention. It is a figure which shows the state which mounted | wore the seat back back surface with the footrest apparatus of FIG. 1, (A) is a side view, (B) is a front view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the component used for the footrest apparatus of the vehicle seat of this invention, (A) is the front view (right side) and side view (left side), (B) of the support arm provided in a seat back back surface. The front view (right side) and side view (left side) and (C) of the link are the front view (right side) and side view (left side) of the board. It is a figure which shows the use condition of the footrest device when the passenger | crew who seated on the seat took off shoes, (A) is a side view, (B) is a front view, (C) is a perspective view. It is a figure which shows the use condition of the footrest apparatus when the passenger | crew who seated on the seat put on shoes, (A) is a side view, (B) is a front view, (C) is a perspective view. It is a figure which shows the case where the footrest apparatus of the vehicle seat of this invention is used as a table, (A) is a side view, (B) is a front view, (C) is a perspective view. It is explanatory drawing which shows the relationship between the conventional front seat and a passenger | crew's leg at the time of a passenger | crew sitting on a rear seat and using an ottoman.

Explanation of symbols

1 ... Footrest device 2 ... Front seat (vehicle seat)
21 …… Back of seat back 3 …… Board 3a …… One side of board 3b …… Other side of board 3c …… First surface of board 3d …… Second surface of board 32 …… Oval groove 32a, 32b… ... Arc portion 33a, 33b ... Notches 4, 4 ... Pair of links 4a ... Link one 4b ... Link other 4c ... Slot 5 ... First pivot point 51, 51 ... Pair support Arm 52 …… First pin 6 …… Second pivot point 62 …… Second pin 7 …… Arm (engaging member)

61, 61 ... A pair of lower latching arms 61a ... Notches 63, 63 ... A pair of upper latching arms 63a ... Notches

Claims (8)

A vehicle seat footrest device in which a board is mounted on the back of a vehicle seat back,
The board is disposed between a pair of links, and one of the links is pivotally attached at a first pivot point provided on both sides of the back surface of the seat back, and the first pivot point is one side of the board. The other of the links is pivoted at a second pivot point disposed below the first pivot point together with the other side of the board and detachably provided on both sides of the back surface of the seat back. Worn,
The first side is exposed by hanging down the other side of the board together with the other of the links, and the foot transitions to the first state where the foot can be contacted. The one side of the board is removed from the first pivot point in a direction opposite to the back surface of the seat back and pivoted downward around the second pivot point, and the other of the links is moved upward. A second state in which a foot wearing a shoe with the one side of the board engaged with the first pivot point is brought into contact with the back surface of the seat back is pivoted 180 degrees around the pivot point. Transition from the second state, pivoting one side of the board upward 90 degrees around the second pivot point pivoting the other side of the board horizontally Holding and transitioning to a third state in which the second surface can be used as a table, and from the third state to the front In the second state, the vehicle seat foot against and wherein the said the reverse transition constitutes the second state to the first state.   The first pivot point includes a support arm provided on the back surface of the seat back and a first pin rotatably supported by the support arm, and the second pivot point is the back surface of the seat back. 2. The vehicle seat according to claim 1, further comprising a second pin that is pivotally supported by a lower latch arm provided on the second link and pivotally attaches the other side of the link and the other side of the board. Footrest device.   One of the links has an elongated hole in which the first pin is movably inserted in the longitudinal direction, and the lower latching arm has a notch that opens upward and latches the second pin. The elongated hole of each link is formed when the other side of the board is pivoted from the first state to the second state in the first state. 3. The vehicle seat according to claim 2, wherein the second pin that is hooked on the base is formed to have a length that allows the second pin to be separated from the notch by lifting the board together with the pair of links. Footrest device.   The back of the seat back is located above the pair of support arms and is provided with a pair of upper latch arms having the same shape as the pair of lower latch arms, and the installation positions of the pair of upper latch arms are: When the other side of the board is pivoted from the second state to the first state, the second pin latched in the notch of each upper retaining arm in the second state. The footrest device for a vehicle seat according to claim 3, wherein the board is in a position where it can be detached from the notch by lifting the board upward together with the pair of links.   On the side surface of the board where the first pin is engaged, an ellipse groove is formed in the longitudinal direction to be movably engaged with the first pin, and the ellipse groove is 5. A footrest for a vehicle seat according to claim 4, wherein a notch for removing one side of the board from the first pin is provided in a state of leaving two arc portions located on both sides. apparatus.   When one side of the board is pivoted upward 90 degrees to hold the board horizontally and its second surface transitions to a third state where it can be used as a table, the board is held in that state 6. The vehicle according to claim 1, wherein an engagement member that engages with the link is movably provided on the first surface of the board. Seat footrest device.   2. A footrest for a vehicle seat according to claim 1, wherein a recess is formed on the back surface of the seat back so that the board can be stored in either the first state or the second state. apparatus.   The footrest device for a vehicle seat according to claim 1, wherein a carpet is attached to the first surface of the board.

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