JP2005008099A - Seat structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a luggage boot floor produced as a back face of a seat back wider and horizontal by lying down the seat back forward in a seat structure of an automobile in which a longitudinal sliding mechanism is disposed in a floor of a car body, a width direction sliding mechanism is slid and supported on the longitudinal sliding mechanism, and the seat is supported on the width direction sliding mechanism. <P>SOLUTION: In this vehicle, a seat 2 in the second line is guided to slide by the longitudinal sliding mechanism 20 provided on the floor in a vehicle compartment and the width direction sliding mechanism 21 guided by the longitudinal sliding mechanism 20. The width direction sliding mechanism 21 has a length falling within a range where the second line seat 2 slides in the width direction and within a length in the car width direction of a seat cushion 2C, and a displacement mechanism for displacing the seat cushion 2C forward on the lower side interlocking with tilting down the seat back 2B on the seat cushion 2C is provided between the second line seat 2 and the width direction sliding mechanism 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat structure, and more particularly to a vehicle seat structure that is slidable in a vehicle longitudinal direction and a vehicle width direction.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle seat structure, it is known that seats, in particular, seats in the second and subsequent rows can be slid in the vehicle front-rear direction and the vehicle width direction to improve the convenience of the seat.
[0003]
Further, as described above, when the seat is slidable in the vehicle longitudinal direction and the vehicle width direction, the seat longitudinal length is increased in order to realize various seat arrangements (so-called long slide is realized). ) Is also done. In this case, the longitudinal slide rail is much longer than the vehicle width direction slide rail. Therefore, when providing both the vehicle longitudinal direction and vehicle width direction sliding mechanisms, the longitudinal sliding mechanism is provided on the floor of the vehicle body. It is considered that it is preferable in terms of support rigidity of the sliding mechanism that the vehicle width direction sliding mechanism is slidably supported by the longitudinal sliding mechanism and the seat is supported by the vehicle width direction sliding mechanism. An example of the sliding mechanism of the sheet configured as described above is disclosed in Patent Document 1 below.
[0004]
[Patent Document 1]
JP-A-10-203210
[0005]
On the other hand, as a variation of the seat arrangement, there is a need that the seat is folded on the seat cushion so that the seat back lies down and the back of the seat back is used as a cargo space. However, if the seat back is simply rotated forward about one rotation axis, the back of the seat back does not become horizontal when the seat is folded due to the shape of the seat cushion and the seat back. Therefore, when providing such a configuration of the folding seat, it is necessary to devise a configuration in which the seat cushion front position is slightly lowered in conjunction with the front-down of the seat back.
[0006]
That is, in the case of combining the configuration of the folding seat to further improve the convenience of the seat to the configuration described in Patent Document 1 described above (that is, the configuration that realizes the so-called long slide and the vehicle width direction slide), Between the vehicle floor and the seat, a front-rear direction sliding mechanism, a vehicle width direction sliding mechanism, and a mechanism for lowering the seat cushion are disposed. However, when the seat is folded, the seat cushion is lowered, which causes a problem of interference with the vehicle width direction sliding mechanism. To make the back of the seat back substantially horizontal without causing interference between the vehicle width direction sliding mechanism and the seat cushion when the seat is folded, a double hinge mechanism is used between the seat cushion and the seat back. However, there is a new problem that the height of the floor surface of the luggage compartment formed as the back surface of the seat back becomes high.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to arrange a sliding mechanism in the front-rear direction on the floor of the vehicle body, and a vehicle-width direction sliding mechanism in the front-rear direction sliding mechanism. In the seat structure of an automobile in which the seat is supported by sliding in the vehicle width direction and the seat back is tilted forward, the luggage compartment floor generated as the back of the seat back is lower and horizontal. Is to realize a structure.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration. That is, the first configuration of the present invention is provided in the vehicle interior of the vehicle and includes a seat cushion and a seat back, and the seat back is in a state of lying on the seat cushion with its back surface facing upward. A seat configured as described above, a vehicle width direction sliding mechanism provided in a lower portion of the seat, for slidingly guiding the seat in the vehicle width direction, and the vehicle width direction sliding mechanism in the front-rear direction in the vehicle interior. A longitudinal sliding mechanism for sliding guidance, and the seat is guided to slide in both the vehicle longitudinal direction and the vehicle width direction by the vehicle width direction sliding mechanism and the longitudinal direction sliding mechanism. In the vehicle seat structure thus formed, a recess is formed upward on the lower surface of the seat cushion, and the vehicle width direction sliding mechanism is within a range in which the seat slides in the vehicle width direction and Recess It is set to a length that falls within the vehicle width direction length range, and the above described seat back is laid down on the seat cushion between the seat and the vehicle width direction sliding mechanism. A displacement mechanism for displacing the seat cushion forward and downward is provided.
[0009]
According to the above configuration, the longitudinal sliding mechanism is disposed on the floor of the vehicle body, and the vehicle width direction sliding mechanism is slidably supported by the front and rear direction sliding mechanism, and the vehicle width direction sliding mechanism has a seat. In the seat structure of the automobile in which the seat is supported, it is possible to realize a structure in which the cargo compartment floor generated as the back surface of the seat back is lowered and leveled by tilting the seat back forward. That is, the lower part of the seat, specifically the lower surface of the seat cushion, is usually formed in a concave shape upward, so that the vehicle width direction sliding mechanism is within the range in which the seat slides in the vehicle width direction. When the seat is arranged so that the seat back is tilted forward so that the back of the seat back is horizontal, the seat cushion is moved forward and downward. This is because the vehicle is displaced and the sliding mechanism in the vehicle width direction can be accommodated in the recess.
[0010]
According to a second configuration of the present invention, the seat back is rotatably supported on a shaft support portion provided in the vehicle width direction sliding mechanism so as to be able to fall on the seat cushion, and the seat cushion is pivoted on the shaft. The seat back is pivotally supported above the support, and the seat cushion is displaced forward and downward by the forward lying of the seat cushion, and the lower surface of the seat cushion and the vehicle width direction sliding mechanism In the meantime, a link mechanism for guiding the forward and downward displacement of the seat cushion is provided.
[0011]
According to the above configuration, since the seat cushion is guided forward and downward only by the operation of tilting the seat back forward, the back of the seat back can be arranged on a substantially horizontal cargo floor with a simple operation. .
[0012]
According to a third configuration of the present invention, the seat cushion is connected to the sliding mechanism in the vehicle width direction so as to be separable, and is supported to be pivotable upward around the vicinity of the rear end. The seat is configured such that the seat cushion can further take a state of being substantially in contact with the seat back in a substantially upright state by rotating upward around the vicinity of the rear end thereof. is there.
[0013]
According to the above configuration, when the seat cushion is in the seatable state, the seat cushion is pivoted upward around the vicinity of the rear end thereof and substantially in contact with the seat back. The portion where the seat cushion is located can be used as a luggage compartment. Further, by rotating the seat cushion and the seat back integrally from the state, a substantially horizontal cargo floor can be formed on the back surface of the seat back.
[0014]
According to a fourth configuration of the present invention, the vehicle width direction sliding mechanism includes a front side vehicle width direction sliding mechanism and a rear side vehicle width direction provided on the lower surface of the seat cushion so as to be separated from each other in the vehicle front-rear direction. The front side vehicle width direction sliding mechanism is within a range in which the seat slides in the vehicle width direction and is within a length range of the recess in the vehicle width direction. The rear side vehicle width direction sliding mechanism is configured to support the seat back so as to be able to fall down.
[0015]
According to the above configuration, of the vehicle width direction sliding mechanisms that support the seat slidably in the vehicle width direction, the rear side vehicle width direction sliding mechanism that supports the rear side of the seat is not a seat cushion but a seat back. When the seat is arranged so that the seat back lies forward so that the back of the seat back is horizontal, only the front side width direction sliding mechanism that supports the front side of the seat is accommodated in the recess. Accordingly, the concave portion may be formed on the lower surface of the seat cushion so as to accommodate the front side vehicle width direction sliding mechanism, and it is not necessary to form the concave portion on the lower surface of the rear portion of the seat cushion which affects the sitting comfort. Therefore, it is possible to realize a structure in which the cargo floor generated as the back surface of the seat back is lowered and leveled by lowering the seat back forward without deteriorating the seating comfort of the seat.
[0016]
【The invention's effect】
According to the present invention, the longitudinal sliding mechanism is arranged on the floor of the vehicle body, and the longitudinal sliding mechanism is slidably supported by the longitudinal sliding mechanism, and the seat is supported by the lateral width sliding mechanism. In the seat structure of the automobile, it is possible to realize a structure in which the cargo compartment floor generated as the back surface of the seat back is lowered and leveled by laying the seat back forward.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS.
[0018]
FIG. 1 is a schematic top view of the interior of a vehicle V to which the first embodiment of the present invention is applied, and the lower side in the drawing corresponds to the front in the vehicle traveling direction. In the passenger compartment, the first row seat 1 defining the driver seat and the passenger seat, the second row seat 2 provided behind the first row seat 1, and the third row seat 2 provided behind the second row seat 2 are provided. The row sheet 3 is arranged, and the first embodiment of the present invention is applied to the second row sheet 2. The second row seat 2 is composed of a right seat and a left seat respectively arranged on the left and right in the vehicle traveling direction. Both seats are provided by the front / rear direction sliding mechanism 20 and the vehicle width direction sliding mechanism 21 described in detail later. It is configured to be movable in both the front-rear direction and the vehicle width direction.
[0019]
The front-rear direction sliding mechanism 20 slides and guides the second row seats 2 in the front-rear direction. (Hereinafter, the front / rear lower rail will be described as the front / rear direction sliding mechanism 20). The pair of front and rear direction lower rails 20 slides and guides a pair of vehicle width direction lower rails 21LF and 21LR (not shown in FIG. 1) provided in the vehicle front and rear direction. Further, the pair of vehicle width direction lower rails 21LF, 21LR slide and guide the vehicle width direction upper rails 21UF, 21UR (not shown in FIG. 1) provided in the lower part of the second row seat 2 in the vehicle width direction. Thus, the right and left seats of the second row seat 2 are each guided by the vehicle width direction upper rails 21UF and 21UR being slidably guided in the vehicle width direction by the vehicle width direction lower rails 21LF and 21LR. 21LF, 21LR and the vehicle width direction upper rails 21UF, 21UR are slidably guided in the vehicle front-rear direction by the front-rear direction lower rail 20, so that the vehicle can move in both the vehicle front-rear direction and the vehicle width direction. Further, between the front-rear direction lower rail 20 and the vehicle width direction lower rails 21LF and 21LR and between the vehicle width direction lower rails 21LF and 21LR and the vehicle width direction upper rails 21UF and 21UR, they are fixed and released at predetermined positions. A lock mechanism is provided, and the second row seats can be fixed at predetermined positions in the front-rear direction and in the vehicle width direction by locking and unlocking by the lock mechanism. Since the configuration of this locking mechanism is well known, illustration and detailed description thereof are omitted.
[0020]
FIG. 2 is an exploded perspective view showing configurations of the front-rear direction sliding mechanism 20, the vehicle width direction sliding mechanism 21, and the second row seat 2. FIG. 2 is a view of the left seat as viewed from the left rear, and the right front-rear direction sliding mechanism 20 and the right half of the seat back frame are respectively symmetrical with the left one, and are not shown. . Also, since the right side seat has a substantially symmetrical configuration with the left side seat, illustration and description thereof are omitted. Further, the second-row seat 2 is formed by covering a metal frame body with a cushion material made of a foam material or the like, as in a general vehicle seat, but the illustration of the cushion material is omitted in FIG. Only the frame is shown.
[0021]
The front / rear direction lower rail 20 is provided on the floor in the passenger compartment along the traveling direction of the vehicle V, and slides and supports the vehicle width direction lower rails 21LF and 21LR as described above. As described above, the pair of vehicle width direction lower rails 21LF and 21LR are provided apart from each other in the front-rear direction of the vehicle. Specifically, the vehicle width is set on the bracket 29 slidably guided by the front-rear direction lower rail 20. Both ends in the direction are fixed. That is, the vehicle width direction lower rails 21LF and 21LR are provided between the pair of front and rear direction lower rails 20 in a pair parallel to the vehicle width direction, and the bracket 29 slides along the front and rear direction lower rails. The sliding guide is integrally guided in the front-rear direction. Further, the height of the bracket 29 is increased toward the rear, and the position of the vehicle width direction lower rail 21LR on the rear side is higher than that of the vehicle width direction lower rail 21LF on the front side. Therefore, a space is formed between the lower side rail 21LR on the rear side in the vehicle width direction and the floor in the vehicle interior, and a foot space for a passenger sitting on the third row seat 3 behind the second row seat 2 is secured. And comfort is improved. The mechanism for sliding the front and rear lower rail 20 and the bracket 29 relative to each other can be realized by using a well-known bearing mechanism or the like, and therefore illustration and detailed description thereof are omitted.
[0022]
As described above, the vehicle width direction lower rails 21LF and 21LR slide and guide the vehicle width direction upper rails 21UF and 21UR. A pair of vehicle width direction upper rails 21UF, 21UR is provided corresponding to the vehicle width direction lower rails 21LF, 21LR, and is attached to the second row seat 2 as described later. The pair of vehicle width direction upper rails 21 </ b> UF and 21 </ b> UR are connected by a connecting plate 22. A bead 220 is formed on the connecting plate 22 in order to improve its rigidity. By connecting a pair of vehicle width direction upper rails 21UF and 21UR, the second row seat 2 is stably slid in the vehicle front-rear direction. This also contributes to an improvement in stability when arranging the second row seats 2 and an improvement in load resistance when a load is applied to the child seat mounting anchor 26 described later.
[0023]
The vehicle width direction lower rails 21LF and 21LR have a substantially T-shaped cross section perpendicular to the longitudinal direction. On the other hand, each of the vehicle width direction upper rails 21UF and 21UR includes a substantially U-shaped portion that opens downward in the longitudinal direction and surrounds the T-shaped cross section of the vehicle width direction lower rails 21LF and 21LR from above. The shape is higher and the rigidity is higher than that of the lower rails 21LF and 21LR due to the relatively large cross-sectional shape. The reason for this will be specifically described later. In addition, a mechanism for relatively sliding the vehicle width direction upper rails 21UF and 21UR and the vehicle width direction lower rails 21LF and 21LR can be realized by using a well-known bearing mechanism, and thus illustration and detailed description thereof are omitted. To do.
[0024]
Next, a structure for attaching the second row seat 2 to the vehicle width direction upper rails 21UF and 21UR will be described.
[0025]
The seat back 2B of the second row seat 2 is pivotally supported by the rear-side vehicle width direction upper rail 21UR via a bracket 23 and a knuckle (not shown). That is, the seat back 2B can be rotated in the front-rear direction around the shaft support P1. The knuckle is used in a general seat reclining mechanism, and can be realized by using a well-known configuration capable of locking and releasing the seat back at an arbitrary angle. Is omitted. Therefore, the occupant performs an operation of operating the knuckle to release the lock and causing the seat back 2B to fall forward when the seat back 2B falls down forward. As described above, since the position of the vehicle width direction lower rail 21LR on the rear side is higher than the vehicle width direction lower rail 21LF on the front side, the bracket 23 including the shaft support portion P1 for supporting the seat back 2B. The support mechanism consisting of is miniaturized to the maximum. That is, in order to make the seat back 2B fall on the seat cushion 2C, the shaft support portion P1 of the seat back 2B is at a relatively high position, so the rear side vehicle width direction lower rail 21LR is replaced with the front side vehicle width direction lower rail 21LF. This is because the vertical dimension of the bracket 23 is increased when arranged at the same height.
[0026]
A bracket 24 is pivotally supported at one end portion thereof (axial support portion P2) above the pivotal support portion P1 on the side of the frame of the seat back 2B. On the other hand, the other end of the bracket 24 is connected to the rear portion of the seat cushion 2C. The bracket 24 and the seat cushion 2C, specifically, the rear part of the cushion frame 2CF are connected by two bolts so that they are not displaced relatively.
[0027]
A seat cover is provided on the side of the second row seat so that the brackets 23, 24, 29, etc. are not visible from the outside, but is not shown in FIG.
[0028]
On the other hand, the seat cushion 2 </ b> C of the second row seat 2 has a lower surface bottom portion fixed to the upper surface of the front-side vehicle-width-direction upper rail 21 </ b> UF via the link mechanism 25 at the front portion thereof. In the link mechanism 25, when the seat back 2B of the second row seat 2 is laid down forward, the seat cushion 2C moves forward and downward so that the back surface of the seat back 2B faces upward and is in a substantially horizontal plane. As described above, the front portion of the cushion frame 2CF is configured to be guided, and is provided at two locations separated in the vehicle width direction at the lower surface front portion of the second row seat 2.
[0029]
That is, since the seat back 2B and the seat cushion 2C are connected as described above, the seat cushion 2C moves forward and downward due to the forward lying of the seat back 2B. The lower surface of the seat cushion 2C, that is, the portion below the cushion frame 2CF in the seat cushion 2C has almost no influence on the seating comfort of the occupant seated on the seat 2, and therefore no cushion material is provided, and the upward direction from the lower surface A recess 27 (not shown in FIG. 2) is formed. Accordingly, it is possible to displace the seat cushion 2C further downward, and even when the seat back 2B is tilted forward, even if the seat cushion 2C moves forward and downward, the vehicle width direction sliding on the front side is possible. The surface formed by the back surface of the seat back 2B can be made low and substantially horizontal without causing interference with the moving mechanism 21.
[0030]
Next, FIG. 3A is a schematic side view of the second row seat 2 with respect to the arrangement of the second row seat 2, specifically, the movement of the second row seat 2 when the seat back 2B is tilted forward. A description will be given with reference to FIGS. In FIG. 3, the bracket 23 that rotatably supports the seat back 2 </ b> B is not shown, and only the shaft support portion P <b> 1 is shown. The illustration of the seat back frame is also omitted.
[0031]
FIG. 3A is a schematic side view when the second row seat 2 is in a seated state, that is, in a state in which an occupant can be seated. The seat cushion 2C is in a substantially horizontal state with its seating surface, that is, the side on which the cushion material is provided facing upward, and the seat back 2B is in a state of being substantially upright from the rear end of the seat cushion 2C upward. Yes.
[0032]
From this state, the seat cushion 2C moves forward and downward by performing an operation of causing the seat back 2B to fall forward. That is, when the seat back 2B is rotated forward around the pivotal support portion P1 (indicated by an arrow (i) in FIG. 3A), the other end of the bracket 24 having one end fixed to the seat cushion 2C is seat back. Since the pivot is pivotally supported with respect to 2B, when the seat back 2B is tilted forward, the seat cushion 2C is also moved integrally forward and downward as the pivot P2 is displaced forward and downward. (Indicated by an arrow (ii) in FIG. 3A). Since the front portion of the seat cushion 2C is supported by the link mechanism 25 as described above and is allowed to move downward in the front direction, the seat cushion 2C is adapted to lie down on the seat back 2B forward. It can move stably forward and downward.
[0033]
FIG. 3B shows a state in which the seat back 2B has fallen forward. As shown in FIG. 3B, the back surface of the seat back 2B is relatively low and substantially horizontal. In general, a seat for a vehicle is configured so that the seat cushion is thicker as the front part in consideration of the seating comfort of the occupant. In order to make it substantially horizontal, it is necessary to interpose a complicated mechanism such as a so-called double hinge mechanism between the seat cushion and the seat back. However, according to the present embodiment, by connecting the seat back 2B and the seat cushion 2C as described above, the seat cushion 2C can be moved forward and downward in conjunction with the forward slack of the seat back 2B. A low horizontal surface can be formed on the back surface of the seat back 2B with a simple configuration and a simple operation. In addition, since only the bracket 24 for connecting to the seat cushion 2C is provided at the rear portion of the seat cushion 2C, the thickness of the rear portion of the seat cushion 2C is not sacrificed, and a simple configuration and simple operation are possible. A lower horizontal surface can be formed on the back surface of the seat back 2B.
[0034]
Further, as shown in FIG. 4 which is a schematic diagram showing the AA cross section of FIG. 3B, a recess 27 is formed on the lower surface of the seat cushion 2C upward (in FIG. 4, the seat cushion 2C). The space portion formed from the lower end E of the cushion to the portion where the cushion frame 2CF is exposed). That is, the cushion material of the seat cushion 2C is substantially provided only above the frame body of the seat cushion 2C, and the lower surface of the seat cushion 2C exposes the cushion frame 2CF, and the above-described link mechanism 25 is directly fixed. ing. Further, the vehicle width direction length of the vehicle width direction sliding mechanism 21 is shorter than the vehicle width direction length of the recess 27 on the lower surface of the seat cushion 2C, and the second row seats 2 are moved in the vehicle width direction within the range. It is comprised so that sliding guidance may be carried out. Accordingly, when the second row seats 2 are arranged in the state shown in FIG. 3B, the second row seats 2 are formed on the lower surface of the seat cushion 2C regardless of the position in the vehicle width direction. The vehicle width direction sliding mechanism 21 is accommodated in the recessed portion 27, and the height of the substantially horizontal surface configured as the back surface of the seat back 2B in the above-described seat arrangement state is set to a lower position. I can do it. As described above, the seating comfort on the second-row seat 2 substantially depends on the cushion material provided above the cushion frame 2CF, so that even if the recess 27 is formed on the lower surface of the seat, the riding comfort deteriorates. There is no. Moreover, since the recessed part 27 should just be formed in the seat cushion 2C lower surface so that only the front side among the vehicle width direction sliding mechanisms 21 may be accommodated, the recessed part 27 is formed in the rear part of the seat cushion 2C which affects sitting comfort. There is no need to form. Therefore, the seating comfort of the seat cushion 2C is ensured accordingly.
[0035]
2 and 3 do not show a headrest normally provided in a vehicle seat. The headrest is fixed to the upper portion of the seat back as is well known in the seated state, but is removed so as not to interfere with the first row seat 1 when the seat back is tilted forward as in this embodiment. Is configured to be possible.
[0036]
The child seat can be attached to the second row seat 2 according to the present embodiment via an anchor. Hereinafter, the anchor for attaching the child seat will be described with reference to FIG. 2 again.
[0037]
The anchor 26 for attaching the child seat is of a known form called ISO-FIX conforming to so-called ISO, and is positioned in the gap between the seat cushion 2C and the seat back 2B when the second row seat 2 is in the seated state. Any child seat compliant with ISO-FIX can be mounted on the second row seat 2 via the anchor 26 and a seat belt (not shown).
[0038]
The anchor 26 is made of metal, and is fixed to the vehicle width direction upper rail 21UR on the rear side by welding. Specifically, the seat cushion of the second-row seat 2 that is welded to the rear surface of the rear-side vehicle-width-direction upper rail 21UR and curved forward with respect to the second-row seat 2 is in a seated state. It is made to be located in the gap between 2C and the seat back 2B. As shown in the figure, the anchors 26 are provided on each of the right side seat and the left side seat in the second row seat 2 in a pair spaced apart in the vehicle width direction. Further, as described above, when arranging the second-row sheets 2, they do not interfere with the movement of the sheets. Therefore, even when the child seat is fixed to the anchor 26, the child seat slides in the vehicle width direction integrally with the second row seat 2, and does not hinder the second row seat 2 from sliding in the vehicle width direction.
[0039]
As described above, the anchor 26 is welded to the rear surface of the rear-side vehicle-width-direction upper rail 21UR. However, the upper rail 21UR has a large cross-section because it accommodates the lower rail 21LR therein, and therefore has a higher rigidity. When attached, a greater load resistance can be exhibited with respect to the load applied to the child seat. The anchor 26 is welded to the rear surface of the upper rail 21UR, and the front rail and the rear upper rail 21UF, 21UR are connected to each other, so that the load resistance against the load applied to the child seat toward the front is improved. The nature is further enhanced.
[0040]
In contrast to the above-described configuration, the seat cushion 2C can be configured such that the front portion thereof can be detached from the vehicle body, specifically the front-side vehicle width direction upper rail 21UF, and can be flipped upward with the rear end as a center. Hereinafter, such a configuration will be described as a second embodiment of the present invention with reference to FIGS. 5 to 7, the same reference numerals are assigned to the same components as those in the first embodiment described above, and the following description will be focused on the configurations, operations, and effects different from those in the first embodiment.
[0041]
FIG. 5 is an exploded perspective view corresponding to FIG. 2 in the second embodiment. The bottom surface bottom portion of the front portion of the seat cushion 2C is fixed to the upper surface of the front vehicle width direction upper rail 21UF via the link mechanism 25 in the first embodiment, but in the second embodiment, the front vehicle It is fixed to the upper surface of the vehicle width direction upper rail 21UF on the front side through a support 290 that can be detached from the width direction upper rail 21UF. Further, the shaft support P4 formed on the seat back frame and the shaft support P5 provided on the support 290 are connected by a link 295, but the illustration is omitted in FIG. The configuration and operation of the link 295 will be described later with reference to FIG.
[0042]
The support 290 is fixed to the lower surface of the seat cushion 2C via a support portion 296 in which a pair of shaft support portions P3 (not shown in FIG. 5) provided apart from each other in the vehicle width direction is formed. In addition, the support 290 has a pair of latches 291 that can be engaged with a pair of strikers 292 provided on the upper surface of the front-side vehicle-width-direction upper rail 21UF at the end opposite to the side fixed to the seat cushion 2C. Is provided. Thus, when the second row seat 2 is in the seated state, the front portion of the seat cushion 2C is in a state in which the support 290 is fixed to the upper surface of the vehicle width direction upper rail 21UF on the front side via the latch 291 and the striker 292. Yes. The latch 291 is formed so that it can be engaged with and released from the striker 292 by an operation unit (not shown).
[0043]
Next, the upward jumping of the seat cushion 2C will be described with reference to FIG. When the seat cushion 2C is in the seated state indicated by the symbol S in FIG. 6A, the front portion of the seat cushion 2C is connected to the front-side upper rail 21UF through the support 290, the latch 291 and the striker 292. It is fixed. On the other hand, the rear portion of the seat cushion 2C is pivotally supported by the seat back 2B, but since the configuration of this portion is the same as that in the first embodiment, detailed description thereof is omitted. On the other hand, when in the jumping state indicated by the reference symbol T in FIG. 6A, the latch 291 of the support 290 is released from the striker 292 and the seat cushion 2C as a whole is centered on the pivotal support portion P2 to the seat back 2B. The seat cushion 2C is pivoted rearward and upward (indicated by an arrow (iii) in FIG. 6A), and the seat cushion 2C and the seat back 2B are substantially in contact with each other.
[0044]
As described above, the support 290 is pivotally supported with respect to the lower surface of the seat cushion 2C and is connected to the seat back 2B by the link 295. That is, the link 295 is connected to the side portion of the support 290 and the side portion of the seat back frame via the shaft support portions P5 and P4, respectively, and the seat cushion 2C is indicated by a reference symbol T in FIG. When the jumping state is reached, the support 290 is folded and guided so that the support 290 does not protrude from the bottom surface of the seat cushion 2C. The link 295 has a curved shape corresponding to the shape from the seat cushion 2C to the seat back 2B when the second row seat 2 is viewed from the side, and is covered with a seat cover as will be described later. It is designed not to affect the passenger comfort.
[0045]
Further, the raised state of the seat cushion 2 </ b> C is maintained by engaging a lock 293 pivotally supported by a seat back frame (not shown) with a striker 294 provided on the bracket 24.
[0046]
As with the first embodiment, the brackets 23 and 24, the link 295, the lock 293, the striker 294, and the like are provided with seat covers on the side portions of the second row seats so that they cannot be seen from the outside. Is omitted.
[0047]
6 (a), the seat cushion 2C and the seat back 2B are integrally rotated around the pivotal support P1 from the jumping state indicated by the reference symbol T (arrow (iv) in FIG. 6 (a)). In other words, the back surface of the seat back 2B can be used as the bottom surface of the luggage compartment, that is, the state corresponding to the fallen state in the first embodiment. This state is shown in FIG. In addition to the concave portion 27 formed in the lower surface of the seat cushion 2C as in the first embodiment, the link 295 connects the seat back 2B and the support 290, so the seat back 2B and the seat cushion 2C are integrated. When lying down forward, the support 290 is kept folded. Accordingly, as shown in the figure, a space remains on the lower surface of the seat cushion 2C in the lying state, and the seat cushion 2C does not interfere with the front-side vehicle width direction sliding mechanism 21, and thus is formed by the back surface of the seat back 2B. The surface to be applied is low and substantially horizontal.
[0048]
When shifting the second row seat 2 from the seated state to the lying down state, the occupant first operates an operation unit (not shown), and the latch 291 provided on the support 290 is provided on the front-side vehicle-width-direction upper rail 21UF. After releasing the striker 292, the seat cushion 2C is flipped up rearward and the lock 293 provided on the seat back 2B is engaged with the striker 294 provided on the bracket 24, so that the seat cushion 2C is lifted up. State. Thereafter, the knuckle (not shown) is operated to release the lock between the seat back 2B and the bracket 23, and the seat back 2B and the seat cushion 2C are integrally rotated forward so that the second row seats 2 are in a lying state. And That is, after the second row seats 2 are temporarily raised from the seated state, the entire second row seats 2 are rotated forward to enter the lying state.
[0049]
As is clear from the above description, the seat cushion 2C can be maintained in the raised state. That is, in contrast to the first embodiment, in the second embodiment, by setting the seat cushion 2C to a jumping state, the portion where the seat cushion 2C of the second row seat 2 is located from the seatable state is used as a luggage compartment. It is possible to arrange the second-row sheet 2 in a ready state.
[0050]
The configuration of the latch 291 provided in the support 290 can be realized by using a known latch mechanism used for a detachable seat or the like, for example, the one described in Japanese Patent Laid-Open No. 2000-6698.
[0051]
Although the present invention has been described with reference to the preferred embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. .
[Brief description of the drawings]
FIG. 1 is a schematic top view of a vehicle interior of a vehicle to which a first embodiment of the present invention is applied.
FIG. 2 is an exploded perspective view showing configurations of a front-rear direction sliding mechanism, a vehicle width direction sliding mechanism, and a second row seat in the first embodiment of the present invention.
FIGS. 3A and 3B are schematic side views of a second row seat showing (a) a second row seat in a seated state and (b) a lying state, respectively, in the first embodiment of the present invention. .
FIG. 4 is a schematic view showing a cross section AA in FIG.
FIG. 5 is an exploded perspective view corresponding to FIG. 2 in the second embodiment.
FIGS. 6A and 6B are schematic views of a second row seat showing (a) a second row seat in a seated state and a raised state, and (b) a lying state, respectively, for a second embodiment of the present invention. It is a side view.
[Explanation of symbols]
2 Second row sheet (sheet)
20 Front-rear lower rail (front-rear sliding mechanism)
21 Vehicle width direction sliding mechanism
21LF Front side width direction lower rail (Front side width direction sliding mechanism)
21UF Front side vehicle width direction upper rail (Front side vehicle width direction sliding mechanism)
21LR Rear side width direction lower rail (rear side width direction sliding mechanism)
21UR Rear side width direction upper rail (rear side width direction sliding mechanism)
23 Bracket (displacement mechanism)
24 Bracket (displacement mechanism)
25 Link mechanism
27 recess
2B Seat back
2C seat cushion
P1 shaft support (displacement mechanism)
P2 shaft support (displacement mechanism)
V vehicle

Claims (4)

A seat provided in a vehicle interior of the vehicle, and comprising a seat cushion and a seat back, and the seat back is configured to be in a state where the back of the seat cushion is laid down on the seat cushion;
A vehicle width direction sliding mechanism that is provided at a lower portion of the seat and slides and guides the seat in the vehicle width direction;
A longitudinal sliding mechanism for sliding the vehicle width direction sliding mechanism in the longitudinal direction in the vehicle interior;
In the vehicle seat structure configured such that the seat is slidably guided in both the vehicle longitudinal direction and the vehicle width direction by the vehicle width direction sliding mechanism and the longitudinal direction sliding mechanism.
A recess is formed on the lower surface of the seat cushion toward the upper side,
The vehicle width direction sliding mechanism is set within a range in which the seat slides in the vehicle width direction and within a vehicle width direction length range of the recess,
A displacement mechanism is provided between the seat and the vehicle width direction sliding mechanism for displacing the seat cushion forward and downward in conjunction with the seat back lying down on the seat cushion. A vehicle seat structure. The seat back is rotatably supported on a shaft support portion provided in the sliding mechanism in the vehicle width direction so as to be able to fall on the seat cushion, and the seat cushion is mounted on the seat back above the shaft support portion. The seat cushion is pivotally supported, and the seat cushion is displaced forward and downward due to the forward lying of the seat cushion.
The vehicle according to claim 1, wherein a link mechanism that guides a forward and downward displacement of the seat cushion is provided between a lower surface of the seat cushion and the vehicle width direction sliding mechanism. Sheet structure. The seat cushion is connected to the vehicle width direction sliding mechanism so as to be separable, and is supported so as to be rotatable upward around the vicinity of the rear end thereof.
The seat is configured so that the seat cushion can further take a state of being substantially in contact with the seat back in a substantially upright state by rotating upward around the vicinity of a rear end thereof. The vehicle seat structure according to claim 1. The vehicle width direction sliding mechanism includes a front side vehicle width direction sliding mechanism and a rear side vehicle width direction sliding mechanism that are spaced apart from each other in the front-rear direction of the vehicle on the lower surface of the seat cushion. ,
The front side vehicle width direction sliding mechanism is set to a length that fits within a range in which the seat slides in the vehicle width direction and within a vehicle width direction length range of the recess,
2. The vehicle seat structure according to claim 1, wherein the rear side vehicle width direction sliding mechanism is configured to support the seat back so as to fall down. 3.

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