JP4200826B2 - Vehicle seat structure - Google Patents

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 seats.
[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
  On the other hand, it is necessary to provide an anchor for mounting a child seat on the seat. Such an anchor for a child seat is generally attached to a rod-like member that is firmly fixed to the vehicle body at the rear of the seat and extends in the vehicle width direction as an example. However, when both the vehicle front-rear direction and the vehicle width direction sliding mechanism are provided in the vehicle interior as in the configuration described in Patent Document 1, the seat itself slides in both the vehicle front-rear direction and the vehicle width direction. Therefore, it becomes difficult to provide a rod-shaped member for fixing the child seat anchor behind the seat. Therefore, it is conceivable to fix the child seat anchor to the vehicle width direction sliding mechanism. However, in order to fix the anchor to the vehicle width direction sliding mechanism while ensuring the load resistance, a new device is required. Necessary. That is, the seat is normally slid and guided by the lower rail having a shape opened upward and the upper rail having a reverse T-shaped cross section. For example, when the child seat anchor is fixed to the reverse T-shaped upper rail, This is because a new problem arises that the load resistance when the child seat is fixed cannot be secured due to the shape.
[0005]
[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. To provide a structure in which a child seat anchor can be fixed to a vehicle width direction sliding mechanism while securing a load resistance in a vehicle seat structure in which a seat is supported by the vehicle width direction sliding mechanism while being supported by sliding. It is in.
[0006]
[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.FirstSeat and aboveFirstSeparated in the front-rear direction of the vehicle at the bottom of the seatEach along the vehicle width directionProvided aboveFirstA front side vehicle width direction sliding mechanism and a rear side vehicle width direction sliding mechanism for sliding and guiding the seat in the vehicle width direction; the front side vehicle width direction sliding mechanism and the rear side vehicle width direction sliding mechanism; A front-rear direction sliding mechanism that slides and guides in the front-rear direction in the passenger compartment, and includes the front-side vehicle width direction sliding mechanism, the rear-side vehicle width direction sliding mechanism, and the front-rear direction sliding mechanism.FirstIn the vehicle seat structure configured such that the seat is slidably guided in both the vehicle longitudinal direction and the vehicle width direction,The front / rear direction sliding mechanism includes a pair of front / rear direction lower rails that are spaced apart in the vehicle width direction and provided along the vehicle front / rear direction, and the front side and the rear side The vehicle width direction sliding mechanism is fixed, and has a pair of first brackets that are slidably guided in the vehicle front-rear direction by the respective front-rear direction lower rails,The rear side vehicle width direction sliding mechanism isIt is fixed to the first brackets at a height position closer to the lower end of the seat back than the floor in the vehicle interior,The vehicle is slid and guided in the longitudinal direction of the vehicle by the longitudinal sliding mechanism.Rear side width directionLower rail and aboveFirstOn the sheetSettingSo that the cross section perpendicular to the longitudinal direction includes a U-shaped part opened downwardHorizontallyFormed and aboveRear side width directionBy sliding the lower rail inside, it is guided by sliding.Rear side width directionWith an upper rail,An anchor for attaching the child seat extends in the vehicle longitudinal direction, and its rear end is fixed to the rear surface of the rear side vehicle width direction upper rail, and its front end is located in the gap between the rear portion of the seat cushion and the lower end of the seat back. is doingIt is characterized by this.
[0007]
  According to said structure, since the anchor for child seat attachment is attached to the upper rail which has a U-shaped cross section and accommodates a lower rail in the rear side vehicle width direction sliding mechanism, it is a member with a comparatively large cross section. The child seat mounting anchor is fixed to the base. Therefore, the mounting strength of the child seat mounting anchor can be further increased in the vehicle seat structure in which the seat is slidably guided in both the vehicle longitudinal direction and the vehicle width direction. Further, since the child seat mounting anchor is attached to the upper rail, the seat can be slid in the vehicle width direction while the child seat is fixed to the seat.
[0008]
  Also,According to said structure, since the anchor for child seat attachment is being fixed to the rear surface of the upper rail which has a horizontally long longitudinal cross section, the load resistance at the time of fixing a child seat to an anchor can be improved. That is, when a forward load is applied to the child seat at the time of a frontal collision of the vehicle, the anchor is fixed to the rear surface of the upper rail, so that a high load resistance can be exhibited against such a load.
[0009]
  The second configuration of the present invention further includes a second seat provided behind the first seat in the vehicle interior, wherein the rear side vehicle width direction lower rail is connected to the rear side vehicle width direction lower rail and the floor. Between the first brackets at a height position higher than the fixed position of the front vehicle width direction sliding mechanism so that a foot space for an occupant seated on the second seat is secured. It is characterized by being.
[0010]
  According to a third configuration of the present invention, the seat back is pivotally supported by the rear side vehicle width direction upper rail via the second bracket so as to be pivotable in the vehicle front-rear direction, and the rear portion of the seat cushion is third. It is pivotally supported on the seat back via a bracket, and its front part is fixed to a front side vehicle width direction sliding mechanism via a link mechanism capable of guiding the seat cushion forward and downward, and the anchor However, when the seat back is laid down forward and the seat cushion is moved forward and downward, it does not interfere with the first seat.
[0011]
  According to a fourth configuration of the present invention, the front side vehicle width direction sliding mechanism includes a front side vehicle width direction lower rail fixed to the first brackets, and a front side vehicle width direction lower rail that slides in the vehicle width direction. A front side vehicle width direction upper rail that is guided by movement, and the link mechanism connects the front lower surface of the seat cushion and the front side vehicle width direction upper rail, and the front side vehicle width A connecting member for connecting the direction upper rail and the rear side vehicle width direction upper rail is provided.
[0012]
  According to said structure, since the front side vehicle width direction sliding mechanism and the back side vehicle width direction sliding mechanism are connected by the connection member, when the load of the front-back direction acts on the anchor for child seat attachment, Such a load is received by the front side vehicle width direction sliding mechanism and the rear side vehicle width direction sliding mechanism as much as possible, and the load resistance is further improved.
[0013]
【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 automobile seat structure, it is possible to provide a structure in which the child seat anchor can be fixed to the vehicle width direction sliding mechanism while securing the load resistance.
[0014]
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.
[0015]
  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, a first row seat 1 defining a driver seat and a passenger seat, a second row seat 2 provided behind the first row seat 1(First sheet), And the third row seat 3 provided behind the second row seat 2(Second sheet)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.
[0016]
  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.
[0017]
  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.
[0018]
  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 is provided apart from each other in the front-rear direction of the vehicle. Specifically, the bracket 29 is slidably guided by the front-rear direction lower rail 20.(First bracket)Both ends in the vehicle width direction are fixed to. 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.
[0019]
  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.
[0020]
  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.
[0021]
  Next, a structure for attaching the second row seat 2 to the vehicle width direction upper rails 21UF and 21UR will be described.
[0022]
  The seat back 2B of the second row seat 2 is a bracket 23.(Second bracket)And it is pivotally supported by the vehicle width direction upper rail 21UR on the rear side via 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.
[0023]
  On the side of the frame of the seat back 2B, there is a bracket 24 above the shaft support P1.(3rd bracket)Is pivotally supported at one end portion thereof (axial support portion P2). 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.
[0024]
  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.
[0025]
  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.
[0026]
  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.
[0027]
  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.
[0028]
  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.
[0029]
  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.
[0030]
  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.
[0031]
  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.
[0032]
  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.
[0033]
  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.
[0034]
  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).
[0035]
  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.
[0036]
  As described above, the anchor 26 is welded to the rear surface of the rear-side vehicle-width-direction upper rail 21UR. However, since the upper rail 21UR accommodates the lower rail 21LR in its interior, the cross section is large and therefore the rigidity is higher. 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 and rear upper rails 21UF and 21UR are connected to each other, so that the load resistance against the longitudinal load applied to the child seat is improved. Is further enhanced. Further, as shown in the figure, the upper rail 21UR has a cross section perpendicular to the longitudinal direction formed in a horizontally long shape, so that it can withstand a larger load in the front-rear direction than that formed in a vertically long shape. It contributes to improvement of sex.
[0037]
  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.
[0038]
  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.
[0039]
  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 front side upper rail 21UF 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).
[0040]
  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.
[0041]
  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.
[0042]
  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.
[0043]
  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.
[0044]
  6A, 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 in FIG. 6A (the arrow (iv) in FIG. 6A). 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. A recess 27 is formed on the lower surface of the seat cushion 2C as in the first embodiment. In addition, since the link 295 connects the seat back 2B and the support 290, 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.
[0045]
  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.
[0046]
  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.
[0047]
  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.
[0048]
  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 taken along the line 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 direction lower rail (front-rear 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, lower rail)
21UR Rear side width direction upper rail (rear side width direction sliding mechanism, upper rail)
22 Connecting plate (connecting member)
26 Anchor (Anchor for child seat mounting)
V vehicle

Claims (4)

A first seat provided in a passenger compartment of the vehicle and comprising a seat cushion and a seat back;
A front side vehicle width direction sliding mechanism and a rear side provided at the lower part of the first seat and spaced apart in the front-rear direction of the vehicle along the vehicle width direction and slidingly guide the first seat in the vehicle width direction. A vehicle width direction sliding mechanism;
A front-rear direction sliding mechanism that slides and guides the front-side vehicle width direction sliding mechanism and the rear-side vehicle width direction sliding mechanism in the front-rear direction in the vehicle interior;
The first seat is slidably guided in both the vehicle front-rear direction and the vehicle width direction by the front-side vehicle width direction sliding mechanism, the rear-side vehicle width direction sliding mechanism, and the front-rear direction sliding mechanism. In the configured vehicle seat structure,
The front-rear direction sliding mechanism is fixed to a pair of front-rear direction lower rails that are provided in the vehicle front-rear direction apart from each other in the vehicle width direction, and the front-side and rear-side vehicle width direction sliding mechanisms are fixed. A pair of first brackets that are respectively slidably guided in the longitudinal direction of the vehicle by the longitudinal rails;
The rear-side vehicle width direction sliding mechanism is fixed to the first brackets at a height position closer to the lower end of the seat back than the floor in the vehicle interior, and is slid in the vehicle front-rear direction by the front-rear direction sliding mechanism. a rear-side vehicle width direction lower rail to be dynamic guided, together with the first eclipse set in a sheet cross section perpendicular to the longitudinal direction is formed in a horizontally long shape as including a U-shaped section opened downward, the rear those having a rear side in the vehicle width direction upper rail being slidably guided by accommodating side vehicle width direction lower rail therein,
An anchor for attaching the child seat extends in the vehicle longitudinal direction, and its rear end is fixed to the rear surface of the rear side vehicle width direction upper rail, and its front end is located in the gap between the rear portion of the seat cushion and the lower end of the seat back. A vehicle seat structure, characterized in that: A second seat provided behind the first seat in the vehicle interior;
The front side vehicle width direction sliding mechanism is arranged such that the rear side vehicle width direction lower rail secures a foot space of an occupant seated on the second seat between the rear side vehicle width direction lower rail and the floor. The vehicle seat structure according to claim 1, wherein the vehicle seat structure is fixed to the first brackets at a height position higher than the fixed position. The seat back is pivotally supported by the rear side vehicle width direction upper rail via the second bracket so as to be pivotable in the vehicle longitudinal direction.
The rear portion of the seat cushion is pivotally supported by the seat back via a third bracket so that the seat cushion can be pivoted forward and the front vehicle width via a link mechanism that can guide the seat cushion forward and downward. Fixed to the directional sliding mechanism,
3. The anchor according to claim 1, wherein the anchor does not interfere with the first seat when the seat back is moved forward and the seat cushion is moved forward and downward. The vehicle seat structure according to claim 1. The front side vehicle width direction sliding mechanism includes a front side vehicle width direction lower rail fixed to the first brackets, and a front side vehicle width direction guided by sliding in the vehicle width direction by the front side vehicle width direction lower rail. With an upper rail,
The link mechanism connects the front lower surface of the seat cushion and the front vehicle width direction upper rail,
4. The vehicle seat structure according to claim 3, wherein a connecting member that connects the front side vehicle width direction upper rail and the rear side vehicle width direction upper rail is provided. 5.

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