JP2010036591A - Vehicle seat structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase a moving distance on a vehicle front side or vehicle rear side of a seat body without extending a seat attaching part in the vehicle longitudinal direction. <P>SOLUTION: When a front passenger's seat body 102 is moved to a predetermined position toward a vehicle front side in a cantilever state in which upper rails 120 greatly protrude from vehicle front side edges 152A of lower rails 152 leaving a space against a second floor 24, edges 120A of the upper rails 120 are inserted into and supported by rail receiving parts 50 arranged on a floor dash 28, and the upper rails 120 comes to have double-sided support structure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat structure.

  In many cases, a vehicle seat has a slide mechanism that slides in the vehicle front-rear direction and that allows an occupant to slide in accordance with his / her physique.

  As the slide mechanism, the upper rail provided at the lower part of the seat cushion of the vehicle seat is slidably attached to the lower rail of the seat attachment portion provided on the floor in the vehicle interior so that the vehicle seat can be A mechanism that slides on the surface is known.

  Here, in order to secure the load amount when the load is loaded, it may be required to increase the amount of movement of the vehicle seat in the vehicle front-rear direction.

  However, there is a case where a step portion along the vehicle width direction is provided on the floor due to the layout of the engine or the like. In this case, the lower rail is provided on the upper step portion (high floor surface) of the step portion. For this reason, the amount of movement of the seat in the vehicle front-rear direction is limited to the length of the lower rail in the vehicle front-rear direction, that is, the width in the vehicle front-rear direction of the upper portion (high floor surface) of the stepped portion.

  If the upper rail is slid beyond the lower rail (the upper step of the step) to increase the amount of movement of the vehicle seat in the longitudinal direction of the vehicle, the upper rail protrudes from the lower rail (the upper step of the step). It becomes a holding state (overhang). If an excessive load is applied to the vehicle seat in this state, the upper rail may be bent.

Therefore, the second lower rail is provided on the lower step (low floor surface) of the stepped portion, the L-shaped extension is provided on the seat body side, and the slider is slidably attached to the second lower rail at the lower end of the extension. The structure which enlarged the moving amount | distance of the vehicle front-back direction of the vehicle seat (seat main body) by providing is proposed (for example, refer patent document 1).
Japanese Patent Laid-Open No. 10-86708

  However, in the configuration of Patent Document 1, it is necessary to provide the second lower rail on the lower stage (low floor surface). Further, it is necessary to provide an L-shaped extension on the seat body side.

  In consideration of the above facts, the present invention is directed to the front side of the seat body or the front side of the seat body without extending the seat mounting portion to which the seat body is movably mounted in the vehicle front-rear direction. An object of the present invention is to provide a vehicle seat structure in which the amount of movement toward the vehicle rear side is increased.

  The vehicle seat structure according to claim 1 includes a seat mounting portion provided on a floor in a vehicle compartment, a seat body attached to the seat mounting portion so as to be movable in the vehicle front-rear direction, and more than the seat mounting portion. A seat body support portion that is provided on the vehicle front side and supports the front portion of the seat body when the seat body protrudes from the seat mounting portion to the vehicle front side and is moved to a predetermined position on the vehicle front side; It is characterized by having.

  Accordingly, when the seat body protrudes from the seat mounting portion to the vehicle front side, in other words, when the vehicle seat body is moved to a predetermined position in a cantilever state, the seat body support portion supports the front portion of the seat body. It becomes a double-sided structure. Therefore, the load that can be received by the seat body is larger than that in the cantilever state. As a result, the seat body can be protruded from the seat mounting portion, and the amount of movement of the seat body toward the vehicle front side is increased. In other words, it is possible to increase the amount of movement of the seat body toward the front side of the vehicle without extending the seat mounting portion in the vehicle front-rear direction.

  A vehicle seat structure according to a second aspect is the configuration according to the first aspect, wherein the seat mounting portion is provided with a lower rail arranged with a longitudinal direction of the vehicle front-rear direction, and the seat body has the An upper rail attached to the lower rail so as to be movable in the vehicle front-rear direction is provided, and the seat body support portion supports a front end portion of the upper rail.

  Accordingly, the seat main body support portion supports the tip end portion of the upper rail to form a double-supported structure, and the load that can be received by the seat main body increases. As a result, it is possible to extend the seat body from the seat mounting portion, and as a result, it is possible to increase the amount of movement of the seat body toward the vehicle front side without extending the seat mounting portion in the vehicle front-rear direction. It becomes possible.

  According to a third aspect of the present invention, there is provided the vehicle seat structure according to the first aspect, wherein the seat body includes a seat cushion on which an occupant sits, and the seat body support portion includes a front portion of the seat cushion. It is characterized by supporting.

  Accordingly, the seat main body support portion supports the front portion of the seat cushion, so that a double-supported structure is obtained, and the load that the seat main body can receive increases. As a result, it is possible to extend the seat body from the seat mounting portion, and as a result, it is possible to increase the amount of movement of the seat body toward the vehicle front side without extending the seat mounting portion in the vehicle front-rear direction. It becomes possible.

  The configuration according to claim 4 is the configuration according to any one of claims 1 to 3, wherein the seat body includes a seat cushion on which an occupant is seated, and the seat cushion is located on a vehicle rear side. The vehicle is characterized in that the vehicle front side can be rotated upward with the center of rotation as the center of rotation.

  Therefore, even if there is an interference on the vehicle front side of the seat cushion, by rotating the vehicle front side end of the seat cushion upward, the interference between the seat cushion and the interference object is eliminated, or the seat cushion and The moving distance until the interference object interferes (contacts) is extended. Therefore, the amount of movement of the seat body toward the vehicle front side is further increased.

  6. The vehicle seat structure according to claim 5, wherein a seat mounting portion provided on a floor in a vehicle interior, a seat main body attached to the seat mounting portion so as to be movable in the vehicle front-rear direction, and the seat main body are the seat. And a seat body support portion that supports the rear portion of the seat body when the seat is protruded from the mounting portion to the vehicle rear side and moved to a predetermined position.

  Therefore, when the seat body protrudes from the seat mounting portion to the vehicle rear side, in other words, when the vehicle seat body is moved to a predetermined position in a cantilever state, the seat body support portion supports the rear portion of the seat body. It becomes a double-sided structure. Therefore, the load that can be received by the seat body is larger than that in the cantilever state. As a result, the seat body can be protruded from the seat mounting portion, and as a result, the movement amount of the seat body on the vehicle rear side can be increased without extending the seat mounting portion in the vehicle rear side direction. It becomes possible.

  The vehicle seat structure according to claim 6 is the configuration according to claim 5, wherein the seat mounting portion is provided with a lower rail arranged in the longitudinal direction of the vehicle front-rear direction, and the seat body includes the An upper rail attached to the lower rail so as to be movable in the longitudinal direction of the vehicle is provided, and the seat body support portion supports a rear end portion of the upper rail.

  Accordingly, the seat main body support portion supports the rear end portion of the upper rail to form a double-supported structure, and the load that the seat main body can receive increases. As a result, the seat body can be protruded from the seat mounting portion, and as a result, the amount of movement of the seat body toward the vehicle rear side can be increased without extending the seat mounting portion in the vehicle rear side direction. Is possible.

  The vehicle seat structure according to claim 7 is the configuration according to any one of claims 1 to 6, wherein the floor is provided with a stepped portion along a vehicle width direction, and the seat mounting portion. Is characterized in that it is provided in the upper part of the step part.

  Therefore, the seat body can be protruded from the upper part of the step part provided with the seat mounting part to the vehicle front side or the vehicle rear side. As a result, even if the floor is provided with a step part, the seat It is possible to increase the amount of movement of the main body toward the vehicle front side or the vehicle rear side.

  As described above, according to the vehicle seat structure of the first aspect, the amount of movement of the seat body toward the vehicle front side can be increased without extending the seat mounting portion in the vehicle front side direction. It has an excellent effect.

  According to the vehicle seat structure of claim 2, the amount of movement of the seat body toward the vehicle front side can be increased by adopting a double-sided structure in which the tip end portion of the upper rail is supported by the seat body support portion. It has the excellent effect of being able to.

  According to the vehicle seat structure of claim 3, the amount of movement of the seat body toward the vehicle front side can be increased by adopting a dual-support structure in which the front portion of the seat cushion is supported by the seat body support portion. It has the excellent effect of being able to.

  According to the vehicle seat structure of the fourth aspect, there is an excellent effect that the amount of movement of the seat body to the vehicle front side can be further increased.

  According to the vehicle seat structure of claim 5, the excellent effect that the amount of movement of the seat body toward the vehicle rear side can be increased without extending the seat mounting portion in the vehicle rear side direction. Have.

  According to the vehicle seat structure of claim 6, the amount of movement of the seat body toward the vehicle rear side is increased by adopting a dual-support structure in which the rear end portion of the upper rail is supported by the seat body support portion. It has an excellent effect of being able to.

  According to the vehicle seat structure according to claim 7, an excellent effect that the amount of movement of the seat body toward the vehicle front side or the vehicle rear side can be increased even when the floor is provided with a stepped portion. Have

  Hereinafter, the vehicle seat of the first embodiment to which the vehicle seat structure of the present invention is applied will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a side view including a partial cross-section schematically showing a vehicle seat structure according to the first embodiment of the present invention. FIG. 2 is a side view including a partial cross section showing a state in which the seat main body has largely moved to the vehicle front side from the state of FIG. In the figure, the arrow FR indicates the vehicle front side direction, and the arrow UP indicates the vehicle upper side direction.

  As shown in FIG. 1, a stepped portion 20 is formed along the vehicle width direction at a vehicle front side portion of a floor 12 constituting a floor surface of a vehicle interior 11 of the vehicle 10. An upper stage of the stepped portion 20 is a first floor (high floor surface) 22, and a lower stage (the vehicle front side of the first floor 22) is a second floor (low floor surface) 24. In other words, the floor 12 is provided with a recess 26 whose front side of the vehicle is one step lower.

  A vehicle front portion of the vehicle interior 11 of the vehicle 10 includes an instrument panel 30 that bulges toward the vehicle rear side. A front windshield glass (not shown) is provided on the upper side of the instrument panel 30.

  The front row passenger seat 100 includes a seat mounting portion 150 provided on the first floor 22 and a passenger seat main body 102 slidably mounted on the seat mounting portion 150 in the vehicle front-rear direction. It has become.

  The first floor 22 is provided with a groove portion 14 whose longitudinal direction is the vehicle front-rear direction in which the seat attachment portion 150 is fitted. The seat attachment portion 150 includes a lower rail 152 that is disposed with the vehicle longitudinal direction as a longitudinal direction. The vehicle front side end portion 152A of the lower rail 152 is located at substantially the same position as the vehicle front side end portion 22A of the first floor 22 or slightly on the vehicle rear side. Further, two lower rails 152 are provided in parallel with a gap in the vehicle width direction.

  An upper rail 120 is provided below the front passenger seat body 102. The upper rail 120 is disposed with the vehicle longitudinal direction as the longitudinal direction. The upper rail 120 is slidably attached to the lower rail 152 of the seat attaching portion 150, so that the passenger seat body 102 moves (slides) in the vehicle front-rear direction as described above. In the present embodiment, the upper rail 120 has a T-shaped cross section.

  The passenger seat main body 102 includes a seat cushion 104, a seat back 106, and a headrest 108 as main components. The seat back 106 is attached to the vehicle rear side end portion of the seat cushion 104 on which an occupant sits so as to be rotatable in the vehicle front-rear direction. A headrest 108 is attached to the upper end of the seat back 106.

  Further, the seat cushion 104 is configured such that the vehicle front side end portion 104A can rotate upward with the vehicle rear side end portion as a rotation center. Therefore, the seat cushion 104 changes from a substantially horizontal state (a state where the occupant is seated slightly to the vehicle front side) shown in FIG. 1 to a substantially vertical state as shown in FIG. can do.

  As shown in FIG. 1, a metal cylindrical rail receiver having a rectangular cross section with an opening on the front side of the vehicle is provided on a floor dash 28 (an inclined surface that is inclined upward toward the front side of the vehicle) that forms the front side of the recess 26. A portion 50 is provided. In other words, the rail receiving portion 50 is provided on the vehicle front side of the seat mounting portion 150.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 2, the passenger can adjust the seat position (the position of the passenger seat body 102 in the longitudinal direction of the vehicle body) by sliding the passenger seat body 102 in the vehicle longitudinal direction according to his / her physique. (See arrow K1). A broken line F / M (Front Most) in FIG. 2 indicates that the seat position is in the foremost state, and a dashed line R / M (Rear Most) indicates that the sheet position is in the last portion. When the seat position indicated by the broken line F / M is in the foremost position, the upper rail 120 slightly protrudes from the vehicle front side end portion 152A of the lower rail 152.

  Further, when passengers get on and off the rear seat (not shown) or load and unload luggage, as shown by the solid line EXTRA-F / M in FIG. The seat position EXTRA-F / M that slides forward of the vehicle beyond the vehicle front end 22 of the first floor 22 can be made larger than / M (see arrow K2).

  Next, a description will be given of the seat position EXTRA-F / M in which the front side of the passenger seat main body 102 is largely moved on the front side.

  When the seat position of the passenger seat body 102 is set to F / M-EXTRA, the vehicle front side end portion of the seat cushion 104 is rotated upward (bounced up) to be substantially vertical.

  In the cantilever state in which the upper rail 120 protrudes largely from the vehicle front side end portion 152A of the lower rail 152 (vehicle front side end portion 22A of the first floor 22) and is spaced from the second floor 24, the passenger seat The seat body 102 is moved to the front side of the vehicle. When the passenger seat main body 102 moves to a predetermined position on the front side of the vehicle, the front end portion 120A of the upper rail 120 is inserted into and supported by the rail receiving portion 50 provided on the floor dash 28, and the upper rail 120 is supported at both ends. It becomes.

  Here, if it is assumed that there is no rail receiving portion 50, if the seat position of the passenger seat body 102 is EXTRA-F / M, the upper rail 120 remains in a cantilever state. Therefore, in order to support the passenger seat main body 102, it is necessary to extend the upper rail 120 to the vehicle rear side and increase the amount of lap with the lower rail 152.

  Further, in the EXTRA-F / M seat position, it is not assumed that the occupant is seated on the passenger seat body 102, but an excessive load is applied to the passenger seat body 102 for some reason (for example, placing a baggage). If added, the upper rail 120 may bend.

  On the other hand, in the present embodiment, as described above, the front end portion 120A of the upper rail 120 is inserted into the cylindrical rail receiving portion 50 provided on the floor dash 28, so that the upper rail 120 has a double-sided structure. Become.

  Therefore, the load that can be received by the upper rail 120 (passenger seat main body 102) is significantly larger than that in the cantilever state. As a result, the upper rail 120 can be protruded from the lower rail 152 (overhang), and as a result, the amount of movement of the front passenger seat body 102 toward the front side of the vehicle can be increased.

  That is, by providing the rail receiving portion 50 on the floor dash 28, the amount of movement of the passenger seat body 102 toward the vehicle front side is increased without extending the seat mounting portion 150 (lower rail 152) in the vehicle front side direction. (The seat position shown in FIG. 2 can be EXTRA-F / M).

  Further, in order to support the passenger seat main body 102, it is not necessary to extend the upper rail 120 to the vehicle rear side and increase the amount of lap with the lower rail 152.

  Further, even if the step portion 20 is provided on the floor 12 as in the present embodiment, the passenger seat main body from the upper step portion of the step portion 20, that is, the vehicle front side end portion 22A of the first floor 22 (high floor surface). The passenger seat main body 102 can be moved to the front side of the vehicle by projecting the large 102. In other words, even if the step portion 20 is provided on the floor 12, the amount of movement of the passenger seat main body 102 toward the vehicle front side can be increased.

  Further, by rotating the vehicle front side end portion 104 of the seat cushion 104 upward so as to be substantially vertical, the moving distance until the seat cushion 104 contacts the instrument panel 30 is extended. Therefore, the amount of movement of the passenger seat main body 102 toward the vehicle front side can be further increased.

  Further, the front end portion 120A of the upper rail 120 is inserted into the cylindrical rail receiving portion 50 provided on the floor dash 28, so that, for example, the front end portion 120A of the upper rail 120 is shifted vertically and horizontally even during traveling. It is prevented.

  The rail receiving portion 50 may have at least the bottom surface 50A on which the tip portion 120A of the upper rail 120 is placed, but as described above, it is preferable that the rail receiving portion 50 has the top surface 50B and the side surface 50B.

  In addition, it is desirable to provide a lock mechanism (not shown) that locks the passenger seat main body 102 to the seat position / EXTRA-F / M in which the front passenger seat body 102 is largely moved to the front side of the vehicle. The locking mechanism (not shown) may be provided on the sheet receiving unit 50 side or may be provided on the sheet attaching unit 150 side. Alternatively, it may be provided on the passenger seat main body 102 side.

  Next, a second embodiment of the vehicle seat structure in the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 3 is a side view including a partial cross-section schematically showing the vehicle seat structure according to the second embodiment of the present invention. Only the state in which the seat position of the passenger seat main body 102 is EXTRA-F / M is illustrated.

  As shown in FIG. 3, a seat cushion receiving portion 60 is provided in the lower portion of the instrument panel 30. The seat cushion receiving portion 60 is rotatable about a rotation shaft 62 whose longitudinal direction is the vehicle width direction. And although the seat cushion receiving part 60 is normally set to the storage position stored inside the instrument panel 30 indicated by the two-dot broken line, the use position protruding from the instrument panel 30 indicated by the solid line by rotating the seat cushion receiving part 60 Can be made.

  The seat cushion receiving portion 60 is fixed to a highly rigid member such as an instrument panel reinforcement (not shown) to which the instrument panel 30 is attached.

  Further, a protrusion portion 105 having a substantially right triangle shape is provided at a lower portion of the front end portion of the seat cushion 104 of the passenger seat main body 102 in a side view.

  Next, the operation of this embodiment will be described.

  When the seat position of the passenger seat body 102 is set to EXTRA-F / M, the seat cushion receiving portion 60 is rotated to the use position protruding from the instrument panel 30. Further, the vehicle front side end portion 104A of the seat cushion 104 is rotated upward.

  The passenger seat body 102 is in a cantilever state in which the upper rail 120 protrudes greatly from the vehicle front side end portion 152A of the lower rail 152 (the vehicle front end portion of the first floor 22) and is spaced from the second floor 24. The seat cushion 104 is moved down to a predetermined position, the seat cushion 104 is lowered, and the protruding portion 105 is placed on the seat cushion receiving portion 60 in the use position, whereby the protruding portion 105 of the seat cushion 104 is supported and the passenger seat body 102 Is a double-sided structure.

  Therefore, the load that can be received by the seat cushion 104 of the passenger seat main body 102 is significantly larger than that in the cantilever state. As a result, the amount of movement of the passenger seat main body 102 toward the front side of the vehicle can be increased. That is, by providing the seat cushion receiving portion 60 on the instrument panel 30, the amount of movement of the passenger seat main body 102 toward the vehicle front side without extending the seat attachment portion 150 (lower rail 152) in the vehicle front direction. (The seat position shown in FIG. 3 can be set to EXTRA-F / M).

  Further, in order to support the passenger seat main body 102, it is not necessary to extend the upper rail 120 to the vehicle rear side and increase the amount of lap with the lower rail 152. Furthermore, even if the step portion 20 is provided on the floor 12, the amount of movement of the passenger seat body 102 toward the front side of the vehicle can be increased.

  In the present embodiment, the protruding portion 105 is provided at the lower portion of the front end portion of the seat cushion 104 so that the seat cushion receiving portion 60 can be easily received. However, the protruding portion 105 is not necessarily provided. For example, when the seat cushion receiving portion has a structure (shape) that can receive the distal end portion 104 </ b> A of the seat cushion 104, the protruding portion 105 is not necessary.

  Note that the seat cushion receiving portion 60 only needs to be able to place the protrusion 105 and the tip 104A at a minimum. However, for example, providing a side surface (not shown) is preferable because the right and left movement of the distal end portion 104A of the seat cushion 104 is prevented.

  In addition, it is desirable to provide a lock mechanism (not shown) that locks the passenger seat main body 102 to the seat position / EXTRA-F / M in which the front passenger seat body 102 is largely moved to the front side of the vehicle. The lock mechanism (not shown) may be provided on the seat cushion receiving portion 60 side, or may be provided on the seat attaching portion 150 side. Alternatively, it may be provided on the passenger seat main body 102 side.

  Next, a third embodiment of the vehicle seat structure in the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment and 2nd embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 4 is a side view including a partial cross section schematically showing the vehicle seat structure according to the third embodiment of the present invention.

  As shown in FIG. 4, a step portion 21 is formed along the vehicle width direction on the rear side of the passenger seat 103 of the floor 15 constituting the floor surface. The upper part of the stepped portion 21 is a first floor (high floor surface) 22, and the lower stage (the vehicle rear side of the first floor 22) is a fourth floor (low floor surface) 25. Further, a step portion 19 is formed along the vehicle width direction on the vehicle rear side of the fourth floor 25. The upper part of the step part 19 is a third floor (high floor surface) 23. In other words, the floor 12 is provided with the recess 27 between the passenger seat 103 and the rear seat (not shown).

  The passenger seat 103 is mainly composed of a seat attaching portion 350 provided in the groove portion 14 of the first floor 22 and a passenger seat main body 102 attached to the seat attaching portion 350 so as to be slidable in the vehicle front-rear direction. It is a member.

  The seat attachment portion 350 includes a lower rail 352 that is disposed with the vehicle longitudinal direction as a longitudinal direction. The vehicle rear side end portion 352B of the lower rail 352 is located at substantially the same position as the vehicle rear side end portion 22B of the first floor 22 or slightly on the vehicle front side. Further, two lower rails 352 are provided in parallel with an interval in the vehicle width direction.

  An upper rail 320 is provided below the front passenger seat body 102. The upper rail 320 is disposed with the longitudinal direction of the vehicle as the longitudinal direction. The upper rail 320 is slidably attached to the lower rail 352 of the seat attachment portion 350, so that the passenger seat main body 102 moves (slides) in the vehicle front-rear direction. In the present embodiment, the upper rail 320 has a T-shaped cross section.

  In addition, a metal cylindrical rail receiving portion 310 having an opening on the front side of the vehicle is provided on the rear floor 29, which is an upward slope of the fourth floor 25 on the vehicle rear side. In other words, the rail receiving portion 310 is provided on the vehicle rear side of the seat mounting portion 350.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 4, the passenger seat body 102 slides in the vehicle front-rear direction so that the occupant can adjust the seat position (position of the passenger seat body 102 in the vehicle body front-rear direction) according to his / her physique. (See arrow K1). A broken line F / M in FIG. 4 indicates that the seat position is in the foremost state, and a dashed line R / M (Rear Most) indicates that the seat position is in the last state.

  Further, when loading and unloading the luggage, as shown by the solid line EXTRA-R / M in FIG. 4, the passenger seat main body 102 is further larger than the rearmost seat position R / M, and the first floor 22 is positioned behind the vehicle. The seat position can be set to EXTRA-R / M, which is slid to the vehicle rear side greatly beyond the end (see arrow K3).

  In the cantilever state in which the upper rail 320 protrudes greatly from the vehicle rear side end portion 352B (the vehicle rear side end portion of the first floor 22) of the lower rail 352 and is spaced from the fourth floor 25, the passenger seat When the main body 102 is moved to a predetermined position on the vehicle rear side, the rear end portion 320B of the upper rail 320 is inserted into and supported by the rail receiving portion 310 provided on the rear floor 29, so that the upper rail 320 has a double-supported structure. .

  Therefore, the load that can be received by the upper rail 520 (passenger seat main body 102) is significantly larger than that in the cantilever state. As a result, the upper rail 320 can be protruded from the lower rail 552 (overhang), and as a result, the amount of movement of the passenger seat body 102 toward the vehicle rear side can be increased.

  That is, by providing the rail receiving portion 310 on the rear floor 29, the amount of movement of the front passenger seat body 102 toward the vehicle front side can be increased without extending the seat mounting portion 550 (lower rail 552) in the vehicle rearward direction. (The seat position shown in FIG. 4 can be set to EXTRA-R / M).

  Even if the step portion 21 is provided on the floor 15, it protrudes greatly from the upper step portion of the step portion 19, that is, the vehicle rear side end portion 22 B of the first floor 22, and moves the passenger seat body 102 to the vehicle rear side. Can be made.

  Further, in order to support the passenger seat main body 102, it is not necessary to extend the upper rail 320 to the front side of the vehicle and increase the amount of lap with the lower rail 552.

  The rail receiving portion 310 may have at least a bottom surface 310A on which the rear end 320B of the upper rail 320 is placed, but preferably has an upper surface 310B and a side surface 310C.

  In addition, it is desirable to provide a lock mechanism (not shown) that locks the passenger seat main body 102 to the seat position EXTRA-R / M in which the passenger seat main body 102 has largely moved to the vehicle rear side. The lock mechanism (not shown) may be provided on the sheet receiving portion 310 side, or may be provided on the seat attachment portion 350 side. Alternatively, it may be provided on the passenger seat main body 102 side.

  In addition, this invention is not limited to the said embodiment.

  For example, by applying the first embodiment or the second embodiment to the third embodiment, the seat position (EXTRA-F / M) that moves largely toward the vehicle front side and the seat position (EXTRA-) that moves greatly toward the vehicle rear side R / M) may be possible.

  Moreover, in the said embodiment, although this invention was applied to the front passenger seat 100,103 of the front row, this invention may be applied to the vehicle seat of the 2nd row or the 3rd row. In addition, when applying the structure of 2nd embodiment to the vehicle seat of the 2nd row or the 3rd row, the seat cushion receiving part 60 (refer FIG. 3) is a suitable site | part other than the instrument panel 30, for example, front What is necessary is just to provide in the back surface of the seat back of a seat.

  Further, in the above-described embodiment, the step portions 20 and 21 are formed on the floors 12 and 15, and the seat attachment portions 150 and 350 are provided on the upper first floor (high floor surface) 22. It is not limited to.

  For example, like the vehicle seat structure according to the fourth embodiment as a configuration example in which there is no step on the floor illustrated in FIG. 5, the seat mounting portion 550 includes brackets 574 and 576 that support the end portions of the lower rail 152 in the vehicle front-rear direction. The lower rail 152 may be provided at a position higher than the floor 13 via the brackets 547 and 576 on the floor 13 having a flat floor surface (a floor surface having no stepped portion).

  Next, a fifth embodiment as a reference example will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment-4th embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 6 is a side view including a partial cross-section schematically showing a vehicle seat structure according to a fifth embodiment as a reference example. In addition, only the state where the seat position of the passenger seat main body 602 is EXTRA-F / M is illustrated.

  As shown in FIG. 6, a leg 610 is provided at the vehicle front side end of the lower part of the passenger seat main body 602. The leg portion 610 is rotatable around a rotation shaft 612 disposed along the vehicle width direction. In general, the leg 610 is in the retracted position stored in the passenger seat body 602 indicated by a two-dot broken line, but is used by hanging from the passenger seat body 602 indicated by a solid line by rotating. It can be in the position.

  Next, the operation of this embodiment will be described.

  When the seat position of the passenger seat 602 is set to EXTRA-F / M, the upper rail 120 protrudes largely from the vehicle front side end portion 152A (the vehicle front end portion of the first floor 22) of the lower rail 152 and the second floor 24. The front passenger seat body 102 is moved to a predetermined position on the front side of the vehicle in a cantilever state spaced apart from the vehicle. In this state, the leg portion 610 is rotated to the use position depending on the passenger seat main body 602, so that the leg portion 610 supports the passenger seat main body 102 and has a double-supported structure.

  Therefore, the load that can be received by the passenger seat main body 602 is significantly larger than that in the cantilever state. As a result, the amount of movement of the passenger seat main body 602 to the front side of the vehicle can be increased. That is, by providing the leg portion 610 that can be stored in the passenger seat main body 602, the passenger seat main body 102 moves to the vehicle front side without extending the seat attachment portion 150 (lower rail 152) in the vehicle front side direction. The amount can be increased (the sheet position shown in FIG. 6 can be set to EXTRA-F / M).

It is a side view including the partial cross section which shows typically the vehicle seat structure concerning 1st embodiment of this invention. FIG. 2 is a side view including a partial cross section for explaining a state in which a passenger seat body is moved in the vehicle front-rear direction from the state of FIG. 1. It is a side view including the partial cross section which shows typically the vehicle seat structure which concerns on 2nd embodiment of this invention. It is a side view including the partial cross section which shows typically the vehicle seat structure which concerns on 3rd embodiment of this invention. It is a side view including the partial cross section which shows typically the vehicle seat structure which concerns on 4th embodiment as a structural example without a level | step difference in the floor in this invention. It is a side view which has the partial cross section which shows typically the vehicle seat structure which concerns on 5th embodiment as a reference example.

Explanation of symbols

11 Car interior 12 Floor 20 Stepped portion 22 First floor (upper)
19 Step part 50 Rail receiving part (Seat body support part)
60 Seat cushion receiving part (seat body support part)
100 Passenger seat (vehicle seat)
102 Passenger seat body (seat body)
103 Passenger seat (vehicle seat)
104 Seat cushion 120 Upper rail 120A Tip portion 150 Seat mounting portion 152 Lower rail 310 Rail receiving portion (seat body support portion)
320 Upper rail 320B Rear end portion 350 Seat mounting portion 352 Lower rail

Claims (7)

A seat mounting portion provided on the floor in the passenger compartment;
A seat body attached to the seat attachment portion so as to be movable in the longitudinal direction of the vehicle;
Provided on the front side of the vehicle with respect to the seat mounting portion, and when the seat main body protrudes from the seat mounting portion to the front side of the vehicle and moves to a predetermined position on the front side of the vehicle, the front portion of the seat main body is supported. A seat body support,
A vehicle seat structure comprising: The seat mounting portion is provided with a lower rail arranged with the vehicle longitudinal direction as the longitudinal direction,
The seat body is provided with an upper rail attached to the lower rail so as to be movable in the vehicle longitudinal direction,
The vehicle seat structure according to claim 1, wherein the seat body support portion supports a front end portion of the upper rail. The seat body has a seat cushion on which an occupant sits,
The vehicle seat structure according to claim 1, wherein the seat body support portion supports a front portion of the seat cushion. The seat body has a seat cushion on which an occupant sits,
4. The seat cushion according to claim 1, wherein the vehicle front side end portion is rotatable upward with the vehicle rear side end portion as a center of rotation. 5. Vehicle seat structure. A seat mounting portion provided on the floor in the passenger compartment;
A seat body attached to the seat attachment portion so as to be movable in the longitudinal direction of the vehicle;
A seat that is provided on the vehicle rear side with respect to the seat mounting portion, and supports the rear portion of the seat body when the seat body protrudes from the seat mounting portion to the vehicle rear side and is moved to a predetermined position on the vehicle rear side. A body support,
A vehicle seat structure comprising: The seat mounting portion is provided with a lower rail arranged with the vehicle longitudinal direction as the longitudinal direction,
The seat body is provided with an upper rail attached to the lower rail so as to be movable in the vehicle longitudinal direction,
The vehicle seat structure according to claim 5, wherein the seat body support portion supports a rear end portion of the upper rail.   The said floor is provided with the level | step-difference part along the vehicle width direction, The said seat attachment part is provided in the upper stage of the level | step-difference part, The any one of Claims 1-6 characterized by the above-mentioned. Vehicle seat structure.

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