JP2010069969A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device for a vehicle capable of moving the seat without causing interference of the seat and a wheel house and adopting a complicated structure such as a knuckle mechanism in order to enhance comfortability of an occupant, capable of attaining enhancement of comfortability of the occupant while attaining simplification of a structure, light weight and reduction of cost, and enlarging a foot base space between a front seat and a rear seat in the seat device in which the wheel house is provided proximity to a just rear side of the seat. <P>SOLUTION: The seat device for the vehicle is provided with a seat cushion 10a supported on a floor panel 4; and a seat back 10b supported on the floor panel 4 at a rear side of the seat cushion 10a independently from the seat cushion 10a. The seat cushion 10a is constituted such that it is supported through a seat cushion movable mechanism 30 for upwardly moving a rear end part of the seat cushion 10a while being rearward moved. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention comprises a front seat disposed above a floor panel forming a bottom surface of a passenger compartment, and a rear seat provided behind the front seat, and is close to the rear of the rear seat. Thus, the present invention relates to a vehicle seat device in which a rear wheel house for storing a rear wheel is provided so as to protrude into a vehicle interior.

  Conventionally, when a wheel house that stores a rear wheel is arranged just behind the rear seat of the vehicle, the rear seat cannot be tilted backward or slid back and forth, so the seat cushion and the seat back are independent. And the simple seat structure supported by the floor panel is adopted. However, since the seat has a simple seat structure, it does not have a mechanism for reclining and sliding the seat, and there is a problem that it cannot take a comfortable posture that suits the preference of the rear seat occupant.

  Therefore, in recent years, a seat device has been proposed that aims to change the occupant's seating posture to the maximum by moving the rear seat as much as possible even when the wheel house is arranged immediately behind the rear seat. ing.

  For example, Japanese Patent Application Laid-Open No. H10-228667 discloses a seat cushion rear end portion of a rear seat that is movably supported in order to improve the comfort of a rear seat passenger.

  In this case, by moving the rear end of the seat cushion upward, for example, when a small passenger such as a child sits on the seat, the hip point of the passenger is raised and the front end of the seat cushion is relatively By being positioned below, it becomes possible to widen the hip angle and knee angle. For this reason, the occupant can take an easy posture.

On the other hand, when a large occupant such as an adult male sits on the seat, the knee angle is inevitably small and the thigh is large and faces forward and upward. In such a case, the rear end of the seat cushion is set to a normal lower position, and the front end of the seat cushion is positioned relatively higher to appropriately support the front side of the occupant's thigh. The occupant can take an easy posture.
JP 2000-335291 A

  However, as disclosed in Patent Document 1, there is a problem that the foot space between the front seat and the rear seat cannot be widened simply by moving the rear end portion of the seat cushion upward.

  If the above-mentioned foot space is not sufficiently secured, it becomes difficult for passengers to get on and off, as well as inconveniences such as being unable to place large luggage in the foot space, and the convenience of the cabin space is It will drop significantly.

  In the present invention, in which the wheel house is provided in the vicinity immediately behind the seat, the seat and the wheel house interfere with each other without adopting a complicated structure such as a knuckle mechanism in order to improve passenger comfort. It is possible to move the seat without the need for it, and it is possible to improve the comfort of the occupant while simplifying the structure, reducing the weight, and reducing the cost, and between the front seat and the rear seat. It is an object of the present invention to provide a vehicle seat device that makes it possible to expand a foot space.

  A vehicle seat device according to the present invention includes a floor panel that forms a bottom surface of a passenger compartment, a front seat that is disposed above the floor panel, and a rear seat that is provided behind the front seat. A rear wheel house that houses a rear wheel close to the rear of the rear seat and projects into the vehicle interior, the rear seat being a seat cushion supported by the floor panel; And a seat back supported by the floor panel independently of the seat cushion behind the seat cushion, and the seat cushion moves rearward while the rear end of the seat cushion is seat cushioned. It is supported via a movable mechanism.

  According to this configuration, the seat cushion movable mechanism allows the rear end portion of the seat cushion to move upward, thereby raising the hip point of the occupant seated on the seat as compared to the case of the occupant before movement, The knee angle can be expanded.

  Thereby, for example, when a small occupant sits on the seat, the occupant can take an easy posture. Furthermore, since the eye point of the occupant also rises as the hip point rises, the front visibility of the rear seat occupant can be improved.

  On the other hand, when the large passenger sits on the seat by setting the seat cushion to the state before moving, the front end of the thigh facing the front and upwards with the knee angle decreasing is greatly increased. It can be properly supported at the front end of the cushion.

  Therefore, while supporting the seat cushion and the seat back independently on the floor panel and supporting the seat cushion via the seat cushion movable mechanism, the structure is simplified, the weight is reduced, and the cost is reduced. It is possible to move only the seat cushion, and to take a comfortable posture regardless of the characteristics (large handle, small handle, etc.) of the seated occupant, and to improve the comfort of the occupant.

  Furthermore, when the wheel house is provided close to the rear of the seat, it is usually difficult to recline or slide the seat, so it is impossible to improve passenger comfort. By supporting the seat cushion through the movable mechanism of the seat cushion, it is possible to move the seat without causing interference between the seat and the wheel house without adopting a complicated structure like a knuckle mechanism, thereby improving passenger comfort. Can be planned.

  Further, when the seat cushion is moved, it is moved rearward, so that a foot space between the front seat and the rear seat can be expanded. For this reason, when an occupant gets on and off, the occupant can move smoothly and a large load can be placed in the foot space.

  In an embodiment of the present invention, the seat cushion movable mechanism is supported so as to be movable to a position where the rear end portion of the seat cushion is in contact with the lower end portion of the seat back.

  According to this configuration, since no gap is formed between the seat cushion and the seat back when the seat cushion is moved, the appearance can be improved. In addition, since the seat cushion does not strongly interfere with the seat back, the seat can be prevented from being damaged.

  In one embodiment of the present invention, the seat cushion movable mechanism includes a seat cushion tilting mechanism that moves the seat cushion backward while moving the front end portion of the seat cushion downward.

  According to this configuration, when a small occupant is seated, the feet of the occupant can easily reach the floor panel of the passenger compartment. And since the raise of a hip point can be suppressed rather than the case where only a seat cushion is moved upwards, it can suppress that a passenger | crew's head contact | abuts on a roof part.

  In one embodiment of the present invention, the seat cushion movable mechanism includes a shaft support portion connected to a side portion of the seat cushion and a long hole portion into which the shaft support portion is fitted.

  According to this configuration, the front end portion of the seat cushion is moved downward simultaneously with the rearward movement while the structure is simple because the shaft support portion fitted in the long hole portion moves in the front-rear direction and the vertical direction. Can do.

  In one embodiment of the present invention, the rear end portion of the seat cushion and the lower end portion of the seat back are disposed with a gap in the vertical direction, and the seat back includes the seat A covering portion that hangs down from the back and that can be displaced when contacting the rear end portion of the seat cushion is provided.

  According to this structure, since the said clearance gap is covered with a coating | coated part, a clearance gap is not conspicuous and it looks good. Furthermore, when an accessory is placed on the seat cushion, the accessory can be prevented from falling from the gap. Further, when the rear end portion of the seat cushion moves upward, it is possible to prevent the movement of the seat cushion from being hindered by the displacement of the covering portion.

  In one embodiment of the present invention, the seat back is supported on the seat cushion so as to be able to move forward, and the lower end of the seat back is retracted to allow the seat back to move forward. The part is provided.

  According to this configuration, the retracting portion can prevent the forward movement of the seat back from being hindered by the rear end portion of the seat cushion, and damage to the seat cushion and the seat back can be prevented.

  In one embodiment of the present invention, the seat back is supported on the seat cushion so as to be able to move forward, and the seat cushion movable mechanism is configured so that when the seat back is moved forward, An interlocking mechanism for moving the seat cushion to a position before the movement is provided in conjunction with the forward movement.

  According to this configuration, it is possible to prevent interference between the seat cushion and the seat back when the seat back is moved forward. Since the seat cushion is returned to the position before the movement in conjunction with the forward movement of the seat back, the seat back can be moved forward without changing the shape of the rear seat.

  According to the present invention, the seat cushion and the seat back are independently supported on the floor panel, and the seat cushion is supported via the seat cushion movable mechanism, thereby simplifying the structure, reducing the weight, and reducing the cost. In this manner, only the seat cushion can be moved while the vehicle is in a comfortable state, so that it is possible to take a comfortable posture regardless of the characteristics (large, small, etc.) of the seated occupant, thereby improving the comfort of the occupant.

  Further, when the wheel house is provided close to the rear of the seat, the seat cushion is supported via the seat cushion movable mechanism, so that the seat and the wheel house can be used without adopting a complicated structure such as a knuckle mechanism. This makes it possible to move the seat without interfering with each other, and to improve the comfort of the passenger.

  Further, when the seat cushion is moved, it is moved rearward, so that a foot space between the front seat and the rear seat can be expanded. For this reason, when an occupant gets on and off, the occupant can move smoothly and a large load can be placed in the foot space.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic plan view of a vehicle including a seat device according to an embodiment of the present invention, and FIG. 2 is a side view thereof. In the figure, the arrow (F) indicates the front of the vehicle, and the arrow (R) indicates the rear of the vehicle. In the vehicle V shown in FIGS. 1 and 2, a dash lower panel 3 (dash panel) for partitioning the engine room 1 and the vehicle compartment 2 in the front-rear direction is provided. A floor panel 4 that extends toward the bottom and forms the bottom surface of the passenger compartment 2 is connected, and a kick-up portion 5 is formed in the middle of the floor panel 4.

  A left seat 7 and a right seat 8 are disposed above the floor panel 4 in the passenger compartment 2 at a predetermined interval in the vehicle width direction. Each of these left and right seats 7, 8 is a front seat, the right seat 8 is set as a driver's seat, and the left seat 7 is set as a passenger's seat. A steering wheel 9 is disposed in front of the right seat 8.

  Each of these seats 7 and 8 is a first row seat having seat cushions 7a and 8a, seat backs 7b and 8b, and headrests 7c and 8c, respectively.

  Behind the left seat 7 and the right seat 8 constituting the above-mentioned front seat, a bench-type rear seat 10 (hereinafter abbreviated as seat 10) on which a plurality of passengers can sit is provided as a second row seat. Yes. The seat 10 also includes a seat cushion 10a, a seat back 10b, and a headrest 10c.

  In FIGS. 1 and 2, W1 is a front wheel, W2 is a rear wheel, and 11 is a wheel house that houses the wheels W1 and W2. Here, the vehicle V is, for example, an SUV or a sports type vehicle, and has a structure in which a space in front of the front seats 7 and 8 and a luggage compartment 12 behind the rear seat 10 are secured. In the present embodiment, the wheel house 11 that protrudes into the passenger compartment 2 and houses the rear wheel W <b> 2 is provided close to the rear of the seat 10.

  In the present embodiment, in the seats 7 and 8 for the front seats, the seat cushions 7a and 8a that form a seating surface on the floor panel 4 slide in the vehicle front-rear direction with respect to the floor panel 4 via the seat slide mechanism 20. It is possible and is supported so that it can be positioned at the front-rear slide position.

  The seat slide mechanism 20 includes a lower rail 20a provided on the floor panel 4, and an upper rail 20b that is slidable in the vehicle front-rear direction with respect to the lower rail 20a.

  On the other hand, in the seat 10 for the rear seat, the seat cushion 10a that forms a seating surface on the floor panel 4 is a seat cushion movable mechanism 30 (hereinafter referred to as a movable mechanism 30) composed of a front movable mechanism 40 and a rear movable mechanism 50. The seat back 10b is supported by the floor panel 4 via a dedicated seat back support portion 60 (hereinafter abbreviated as the support portion 60) behind the seat cushion 10a. It is supported by. That is, in the seat 10, the seat cushion 10a and the seat back 10b are independently supported by the floor panel 4.

  FIG. 3 is a perspective view showing a rear seat. As shown in FIGS. 1 to 3, the seat cushion 10 a of the seat 10 is provided with a front movable mechanism 40 as a seat cushion tilting mechanism on the front end side portion, and the rear side movable portion on the rear end side portion. A mechanism 50 is disposed, and a support portion 60 is disposed on the lower side of the seat back 10b.

  In addition, as shown in FIGS. 1 to 3, an operation member 13 is disposed on the side of the headrest 10 c on the upper surface of the seat back 10 b, and is well-known that is built into the seat back 10 b via a wire 14. The lock mechanism 15 is connected. The lock mechanism 15 includes a claw-shaped latch (not shown) that can be engaged with a striker 16 attached to the vehicle body side, and the seat back 10b can be raised when the latch engages with the striker 16. It is supposed to be retained.

  On the other hand, when the occupant appropriately operates the operation member 13, the latch can be operated via the wire 14, and the engagement between the latch and the striker 16 can be released by this operation. Yes.

  Further, the rear end portion of the seat cushion 10a and the lower end portion of the seat back 10b are arranged so as to have a gap in the vertical direction, and the seat back 10b is disposed on the rear side of the lower end of the seat back 10b so as to cover the gap. As shown in FIGS. 1 and 3, a covering member 17 that extends substantially in a belt shape along the sheet width direction is provided. The covering member 17 is made of rubber, for example, and is configured to be elastically deformable.

  Although not shown in FIGS. 2 and 3 for the sake of convenience, the movable mechanism 30 and the support portion 60 described above are disposed substantially symmetrically on both sides of the seat cushion 10a and the seat back 10b. Accordingly, in the following description, only one of them will be described in detail.

  FIG. 4 is an exploded perspective view showing the front movable mechanism. As shown in FIGS. 3 and 4, the front movable mechanism 40 is mainly composed of a base bracket 41, an operation plate 42, a return spring 43, a connecting rod 44, a guide bracket 45, a rotating shaft 46, and a slide pin 47. ing.

  The base bracket 41 and the guide bracket 45 are fastened and fixed to the floor panel 4, and support the operation plate 42 via a rotation shaft 46 inserted through the vertical wall portion.

  The operation plate 42 has a slide lever 48 at its front end, and can be rotated around a rotation shaft 46 by operation of the slide lever 48. The return spring 43 urges the operation plate 42 to rotate counterclockwise as viewed from the side of the vehicle, and acts to hold the slide lever 48 at a lower position.

  In addition, one end side of the connecting rod 44 is connected to the lower portion of the operation plate 42 and is connected to the operation plate 42 on the other side of the seat cushion 10a. Thus, when one of the slide levers 48 is operated, the operating force is transmitted to the other by the connecting rod 44, and the operation plates 42 on both sides are interlocked.

  The guide bracket 45 is formed with a semicircular arc-shaped elongated hole 45a that is inclined rearward and downward at an upper portion thereof, and is connected to a side surface of the seat cushion 10a so as to protrude toward the vehicle outer side. A slide pin 47 is inserted.

  The tip of the slide pin 47 is fitted into a recess 42a formed at the upper rear side of the operation plate 42. When the operation plate 42 is rotated, the slide pin 47 is moved into the elongated hole 45a by the pressing force of the edge of the recess 42a. It is designed to slide along.

  The rotation shaft 46 is mainly composed of a shaft main body 46a extending to the vehicle outer side, two cylindrical members 46b and 46b, and a nut 46c. The cylindrical member 46b is inserted into the shaft main body 46a, and the base bracket 41 The operation plate 42 and the guide bracket 45 are inserted through the insertion holes 41a, 42b, and 45b. A nut 46c is screwed into the tip of the shaft main body 46a to prevent the tubular member 46b from coming off.

  FIG. 5 is an exploded perspective view showing the rear movable mechanism. As shown in FIGS. 3 and 5, the rear movable mechanism 50 is mainly composed of a guide bracket 51 and a slide pin 52.

  The base portion of the guide bracket 51 is fastened and fixed to the floor panel 4, and a semicircular arc-shaped long hole portion 51 a that is inclined rearward and upward is formed in the vertical wall portion above the guide bracket 51. And the slide pin 52 connected with the side surface of the seat cushion 10a so that it may protrude toward the vehicle outer side is inserted in this long hole part 51a.

  A cylindrical member 53 is inserted into the slide pin 52, and slides along the long hole portion 51a. Further, a nut 54 is screwed to the tip of the slide pin 52, and the nut 54 prevents the cylindrical member 53 from coming off.

  FIG. 6 is an exploded perspective view showing the seat back support portion. The support portion 60 mainly includes a hinge bracket 61, a rotation shaft 62, and a seat side bracket 63 fixed to a corner portion between the back surface and the side surface of the seat back 10b.

  The base of the hinge bracket 61 is fastened and fixed to the floor panel 4, and the seat side bracket 63, that is, the seat back 10b is rotatably supported via a rotation shaft 62 inserted through the vertical wall portion. .

  The rotation shaft 62 is mainly composed of a shaft main body 62a extending to the vehicle outer side, a cylindrical member 62b, and a nut 62c. The cylindrical member 62b is inserted into the shaft main body 62a, and the insertion holes 61a of the brackets 61 and 63 are inserted. , 63a. A nut 62c is screwed to the tip of the shaft main body 62a to prevent the tubular member 62b from coming off.

  In the present embodiment, when the slide lever 48 is in the lower position shown in FIG. 7, in the front movable mechanism 40, the concave portion 42a of the operation plate 42 is held in the upper position, so that the slide pin 47 has the long hole portion 45a. It is held at the position of the upper end and the front end. Accordingly, the front end portion of the seat cushion 10 a is held at an upper position that is largely separated from the floor panel 4, and is advanced forward to the upper position of the kick-up portion 5.

  Further, at this time, in the rear movable mechanism 50, the slide pin 52 is held at the position of the lower end and the front end of the long hole portion 51a, whereby the rear end portion of the seat cushion 10a approaches the floor panel 4. Is held at a lower position. In the following description, as shown in FIG. 7, the position of the seat cushion 10a in a state where the front end portion and the rear end portion are in the upper position and the lower position, respectively, and has advanced to the front as a whole is referred to as a first position.

  On the other hand, when the occupant rotates from the state shown in FIG. 7 so as to pull up the slide lever 48 against the elastic force of the return spring 43 (see FIGS. 3 and 4), as shown in FIG. By rotating the operation plate 42 in the clockwise direction, the slide pin 47 slides backward and downward along the long hole portion 45a. At this time, the front end of the seat cushion 10a moves backward and downward.

  Further, at this time, in the rear movable mechanism 50, the slide pin 52 slides upward and rearward along the long hole portion 51a in accordance with the movement of the front end portion of the seat cushion 10a. Accordingly, the rear end portion of the seat cushion 10a moves upward and rearward while being largely separated from the floor panel 4, and finally comes into contact with the lower end portion of the seat back 10b. In the following description, as shown in FIG. 8, the position of the seat cushion 10a after the front end portion and the rear end portion have moved rearward and downward, rearward and upward is referred to as a second position.

  Here, when the seat cushion 10a is moved from the first position to the second position, the covering portion 17 is suspended from the seat back 10b when contacting the rear end of the seat back 10b (see FIG. 9). ), The lower part thereof is displaced by its own elastic deformation as shown in FIG.

  When the seat cushion 10a moves to the second position, the slide pin 47 of the front movable mechanism 40 is located at the lower end of the long hole portion 45a as shown in FIG. Even so, the seat cushion 10a is held in the second position against the urging force of the return spring 43 by its own weight.

  On the other hand, when the seat cushion 10a is returned to the first position, the slide lever 48 is rotated so as to push down, and the slide pin 47 of the front movable mechanism 40 is moved to the upper end and the front end of the long hole portion 45a. The slide pin 52 of the rear movable mechanism 50 may be moved to the position of the lower end and the front end of the long hole portion 51a. At this time, the return spring 43 acts to assist the turning operation of the slide lever 48 by its urging force.

  If the occupant leaves the seat 10 when the seat cushion 10a is in the second position, the seat cushion 10a may be automatically returned to the first position by the urging force of the return spring 43.

  Further, the long hole portion 45a may be formed in a mountain shape, and when the slide pin 47 exceeds the peak portion, the position of the slide pin 47 may be locked by the action of the urging force of the return spring 43.

  By the way, in this embodiment, as shown in FIGS. 7-10, it has comprised the shape where the corner | angular part (part shown with a dashed-two dotted line in a figure) of the lower end part front side of the seat back 10b was partly eroded. A retracting portion 19 is provided that is separated from the rear end portion of the seat cushion 10b.

  Further, when the engagement between the latch of the lock mechanism 15 and the striker 16 (see FIG. 2 and the like) is released, the seat back 10b is rotated around the rotation shaft 62 of the support portion 60, thereby the seat cushion 10b. 10a can be moved forward.

  In this case, even when the seat cushion 10a is in the second position and the rear end portion is in the state of being close to the lower end portion of the seat back 10b, when the seat back 10b is rotated forward, as shown in FIG. In addition, the retracting portion 19 avoids contact between the rear end portion of the seat cushion 10a and the lower end portion of the seat back 10b. As a result, the seat back 10b as shown in FIG. It is supposed to be.

  By the way, conventionally, when the wheel house is provided in the vicinity immediately behind the rear seat as in this embodiment, the rear seat is reclined and slid because importance is placed on avoiding interference with the wheel house. There was no configuration, and there was a tendency that the comfort of the rear seat passengers was not fully considered.

  Therefore, the rear seat is a fixed type in which the seat cushion and the seat back are independently supported by the floor panel as in this embodiment, thereby simplifying the structure and reducing the weight and reducing the cost. Was realized.

  On the other hand, when considering the improvement of passenger comfort, it is common to use a knuckle mechanism (for example, see Japanese Patent Application Laid-Open No. 2008-189060) like a front seat so that the seat can be reclined. It has become.

  However, the knuckle mechanism described above has a problem in that its structure is complicated as disclosed in Japanese Patent Application Laid-Open No. 2008-189060 and the cost is increased.

  In contrast, in the present embodiment, in addition to the effects of simplifying the structure, reducing the weight, and reducing the cost by independently supporting the seat cushion 10a and the seat back 10b on the floor panel 4, the movable mechanism 30 is provided. By supporting the seat cushion 10a through the above, the following effects can be achieved with respect to improving passenger comfort.

  That is, since the rear end portion of the seat cushion 10a can be moved upward by the movable mechanism 30, when the seat cushion 10b is in the second position (shown by a solid line in FIG. 13), the occupant C1 seated on the seat 10 The hip point HP (shown by a thick one-dot chain line in FIG. 13) can be raised as compared with the case of the occupant C2 before movement (shown by the two-dot chain line in FIG. 13), and the hip angle θ1 and knee angle θ2 can be widened.

  Thereby, for example, when a small occupant such as a child sits on the seat 10, the occupant can take an easy posture. Furthermore, since the hip point HP is raised, the eye point of the occupant C1 is also raised, and there is an effect that the front visibility of the rear seat occupant can be improved.

  On the other hand, by setting the seat cushion 10a to the first position (position indicated by a two-dot chain line in FIG. 13), when a large occupant such as an adult male sits on the seat 10, the knee angle θ2 decreases. Thus, the front end portion of the thigh, which is greatly frontward and upward, can be appropriately supported by the front end portion of the seat cushion 10b at the upper position.

  As described above, the seat cushion 10a and the seat back 10b are independently supported on the floor panel 4, and the seat cushion 10a is supported via the movable mechanism 30, thereby simplifying the structure, reducing the weight, and reducing the cost. In this manner, only the seat cushion 10a can be moved, and an easy posture can be taken regardless of the characteristics (large, small, etc.) of the seated occupant, and the comfort of the occupant can be improved.

  Further, as described above, when the wheel house 11 is provided in close proximity to the rear of the seat 10, it is difficult to recline or slide the seat, so that it is not possible to improve passenger comfort. However, by supporting the seat cushion 10a via the movable mechanism 30, the seat 10 and the wheel house 11 can move without interfering with each other without adopting a complicated structure such as a knuckle mechanism. This makes it possible to improve passenger comfort.

  Further, when the seat cushion 10a is moved to the second position, the seat cushion 10a is moved rearward so that the foot space between the front seats 7 and 8 and the rear seat 10 can be widened. . For this reason, when an occupant gets on and off, the occupant can move smoothly and a large load can be placed in the foot space.

  Further, in order to prevent the luggage from getting dirty, when the seat cushion 10a is placed on the seat cushion 10a, the seat cushion 10a is set at the first position, so that a large inertia force is generated by, for example, sudden braking. Even so, it is possible to suppress the fall of the load by the front end portion at the upper position.

  Further, when the seat cushion 10a is moved to the second position, the seat cushion 10a can be moved to a position where the seat cushion 10a contacts the lower end of the seat back 10b, so that the seat cushion 10a is moved between the seat cushion 10a and the seat back 10b. Since no gap is formed, the appearance can be improved. Further, since the seat cushion 10a does not strongly interfere with the seat back 10b, the seat 10 can be prevented from being damaged.

  Further, in the present embodiment, when the seat cushion 10a is moved to the second position, the front end portion of the seat cushion 10a is moved downward by the front movable mechanism 40 to tilt the entire seat cushion 10a. When an occupant is seated, the occupant's feet can easily reach the floor panel 4 of the passenger compartment 2. And since the raise of hip point HP can be suppressed rather than the case where only seat cushion 10a is moved upwards, it can control that a crew member's head contacts roof part 18 (refer to Drawing 2).

  Moreover, the front side movable mechanism 40 and the rear side movable mechanism 50 which comprise the movable mechanism 30 comprise the slide pins 47 and 52 connected with the side part of the seat cushion 10a, and the long hole parts 45a and 51a in which these fit. As a result, the slide pins 47, 52 fitted in the long hole portions 45a, 51a move in the front-rear direction and the up-down direction, so that the front end portion of the seat cushion 10a is moved rearward while having a simple configuration. It can be moved downward simultaneously with the movement.

  Further, even if the covering portion 17 is disposed with a gap between the seat cushion 10a and the seat back 10b as in the present embodiment, the gap is covered by the covering portion 17, The gap is inconspicuous and looks good. Furthermore, when a small object such as a pen is placed on the seat cushion 10a, the small object can be prevented from falling from the gap. Further, when the rear end portion of the seat cushion 10a moves upward as described above, the covering portion 17 is displaced by elastic deformation, so that the movement of the seat cushion 10a can be prevented.

  In addition, when the seat back 10b is rotated forward while the seat cushion 10a is in the second position, the retracting portion 19 allows the seat back 10b to be forwarded. Can be prevented from being hindered by the rear end of the seat cushion 10a, and damage to the seat cushion 10a and the seat back 10b can be prevented.

  In the present embodiment, the retracting portion 19 is formed in the seat back 10b by forming a shape in which a part of the corner is eroded. However, the present invention is not necessarily limited thereto. In addition, another member made of a material softer than the seat back 10b may be disposed in the corner portion, and the retracting portion may be configured by the soft member.

  FIG. 14 is a schematic plan view of a vehicle including a seat device according to another embodiment of the present invention, and FIG. 15 is a perspective view showing a rear seat. In the first embodiment described with reference to FIGS. 1 to 13, even when the seat cushion 10 a is in the second position, the seat back 10 b is moved forward by the retracting portion 19 at the lower end of the seat back 10 b. Although allowed, the present invention is not necessarily limited to this.

  For example, as shown in FIGS. 14 and 15, the seat cushion movable mechanism 70 and the seat back support portion 90 are connected by a power transmission member such as a wire 100, and the seat cushion 10a is interlocked with the forward movement of the seat back 10b. May be moved to the position before the second position movement, that is, the first position. In the embodiment shown in FIGS. 14 and 15, the same components as those in the first embodiment described with reference to FIGS. 1 to 13 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the seat cushion movable mechanism 70 (hereinafter, abbreviated as the movable mechanism 70) according to the embodiment shown in FIGS. 14 and 15, as shown in FIG. 16, rather than the rotating shaft 46 of the operation plate 42 of the front movable mechanism 40. One end side of the connecting rod 71 is connected to the rear and lower position, and the other end side is connected to the front lower portion of the interlocking plate 85 of the rear movable mechanism 80 shown in FIG.

  In the rear movable mechanism 80, the interlocking plate 85 is rotatably supported by the rotation shaft 86, and the rear lower portion of the interlocking plate 85 is connected to one end side of the wire 100.

  Further, in the rear movable mechanism 80, the rotation shaft 86 is mainly constituted by a shaft main body 86a, a cylindrical member 86b, and a nut 86c that extend outwardly from the vehicle, and the cylindrical member 86b is inserted into the shaft main body 86a. Yes. The pivot shaft 86 includes a guide bracket 81 formed with a long hole portion 81a substantially the same type as the long hole portion 51a (see FIG. 5 and the like), an interlocking plate 85, and a base whose base portion is fastened and fixed to the floor panel 4. The insertion holes 81b, 85a, 87a of the bracket 87 are inserted. A nut 86c is screwed to the tip of the shaft main body 86a to prevent the tubular member 86b from coming off.

  Further, in the rear movable mechanism 80, a slide pin 82 having substantially the same configuration as that of the slide pin 52 is disposed, and like the cylinder member 53 and the nut 54, a cylinder member 83 is inserted into the slide pin 82, and the nut. 84 prevents the omission.

  The other end of the wire 100 is connected to a seat side bracket 93 that constitutes a seat back support portion 90 (hereinafter, abbreviated as a support portion 90) shown in FIG.

  Like the support portion 60, the support portion 90 is mainly configured by a hinge bracket 91, a rotation shaft 92, and a seat side bracket 93. The hinge bracket 91 and the seat side bracket 93 have insertion holes 91a and 93a. Is formed. In the rotation shaft 92, similarly to the rotation shaft 62, a cylindrical member 92b is inserted into the shaft main body 92a, and a nut 62c is screwed to the tip of the shaft main body 92a. It is preventing.

  Further, in the support portion 90, a wire guide 91 b is attached along the vertical wall portion of the hinge bracket 91 to restrict the wiring path of the wire 100, and the connecting end 93 b protruding downward is integrated with the seat side bracket 93. The other end side of the wire 100 is connected here.

  Here, as shown in FIG. 19, when the seat cushion 10a in the first position is moved to the second position shown by the solid line in FIG. 20, the slide lever 48 is pulled up as in the first embodiment described above. By operating, the slide pin 82 is slid and moved rearward and downward along the long hole portion 45a, and the slide pin 82 is slid upward and rearward of the long hole portion 81a. At this time, in the interlocking plate 85, the arm portion 85b is pushed backward by the above movement of the slide pin 82, whereby the interlocking plate 85 rotates in the clockwise direction of FIGS.

  As shown in FIGS. 19 and 20, one end side of the connecting rod 71 is moved downward by the rotation of the operation plate 42, and the other end side is rotated by the interlocking plate 85 as the slide pin 82 is moved. Move upward.

  Here, when the seat cushion 10a is in the first position, the wire 100 is in a slack state as shown in FIG. When the seat cushion 10a moves to the second state, the one end side of the wire 100 moves downward by the clockwise rotation of the interlocking plate 85, and the slack is eliminated as shown in FIG.

  In the present embodiment, when the occupant operates the operation member 13 to move the seat back 10b forward while the seat cushion 10a is in the second position, the wire 100 is moved upward as the seat back 10b rotates forward. As a result, in the rear movable mechanism 80, the interlocking plate 85 is rotated counterclockwise. At this time, the arm portion 85b presses the slide pin 82 by the rotation of the interlocking plate 85 and slides it forward and downward along the long hole portion 81a, thereby the rear end portion of the seat cushion 10a. Moves forward and downward as shown in FIG.

  And the other end side of the connecting rod 71 moves backward and downward by the rotation of the interlocking plate 85. At this time, one end side of the connecting rod 71 is pulled rearward, so that in the front movable mechanism 40, the operation plate 42 connected to one end side of the connecting rod 71 rotates counterclockwise, and the slide pin 47 becomes a long hole. It slides to the position of the front end and upper end of the part 45a. As a result, the front end portion of the seat cushion 10a moves to the front and upper position as shown in FIG.

  Thus, in the present embodiment, the seat cushion 10a can be moved to the position before moving to the second position, that is, the first position in conjunction with the forward movement of the seat back 10b. .

  In this case, when the seat back 10b is moved forward, the rear end portion of the seat cushion 10a moves forward and downward, so that interference between the seat cushion 10a and the seat back 10b can be prevented. Since the seat cushion 10a is returned to the first position in conjunction with the forward movement of the seat back 10b, the seat back 10b can be moved forward without changing the shape of the rear seat 10.

  In each of the above-described embodiments, the rear seat is configured by the bench-type seat 10, but is not necessarily limited thereto, and may be a separate-type seat divided into left and right. In this case, the connecting rod 44 that connects the two operation plates 42 is not necessary.

In correspondence between the configuration of the present invention and the above-described embodiment,
The seat cushion tilting mechanism of the present invention corresponds to the front movable mechanism 40,
Similarly,
The shaft support part corresponds to the slide pins 47, 52, 82,
The interlocking mechanism corresponds to the connecting rod 71, the interlocking plate 85, and the wire 100,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

1 is a schematic plan view of a vehicle including a seat device according to an embodiment of the present invention. The side view of the vehicle shown in FIG. The perspective view which shows the seat for rear seats. The disassembled perspective view which shows a front side movable mechanism. The disassembled perspective view which shows a rear side movable mechanism. The disassembled perspective view which shows a seat back support part. The principal part enlarged side view which shows a seat apparatus when a seat cushion exists in a 1st position. The principal part enlarged side view which shows a seat apparatus when a seat cushion exists in a 2nd position. The principal part enlarged side view which shows a coating | coated part when a seat cushion exists in a 1st position. The principal part enlarged side view which shows a coating | coated part when a seat cushion exists in a 2nd position. The principal part enlarged side view which shows the state which rotated the seat back when the seat cushion exists in the 2nd position. The principal part enlarged side view which shows the state which made the seat back fall forward when the seat cushion exists in the 2nd position. Explanatory drawing for demonstrating the effect | action of this invention. The schematic plan view of a vehicle provided with the seat apparatus which concerns on other embodiment of this invention. The perspective view which shows the seat for rear seats. The disassembled perspective view which shows a front side movable mechanism. The disassembled perspective view which shows a rear side movable mechanism. The disassembled perspective view which shows a seat back support part. The principal part enlarged side view which shows a seat apparatus when a seat cushion exists in a 1st position. The principal part enlarged side view which shows a seat apparatus when a seat cushion exists in a 2nd position. The principal part enlarged side view which shows the state which made the seat back fall forward when the seat cushion exists in the 2nd position.

Explanation of symbols

2 ... Vehicle compartment 4 ... Floor panel 7 ... Left seat 8 ... Right seat 10 ... Rear seat 11 ... Wheel house 17 ... Covering part 19 ... Retraction part 30, 70 ... Seat cushion movable mechanism 40 ... Front movable mechanism 45a, 51a, 81a ... Long hole 47, 52, 82 ... slide pin 71 ... connecting rod 85 ... interlocking plate 100 ... wire W2 ... rear wheel

Claims (7)

A floor panel forming the bottom of the passenger compartment;
A front seat disposed above the floor panel;
A rear seat provided behind the front seat,
A rear wheel house that houses a rear wheel in the vicinity of the rear of the rear seat is provided in a vehicle so as to protrude into the vehicle interior,
The rear seat is a seat cushion supported by the floor panel;
A seat back supported by the floor panel independently of the seat cushion is provided behind the seat cushion, and
The vehicle seat apparatus is supported by a seat cushion movable mechanism that moves the rear end of the seat cushion upward while the seat cushion moves rearward. The vehicle seat apparatus according to claim 1, wherein the seat cushion movable mechanism is supported so as to be movable to a position where a rear end portion of the seat cushion is in contact with a lower end portion of the seat back. 3. The vehicle seat apparatus according to claim 1, wherein the seat cushion movable mechanism includes a seat cushion tilting mechanism that moves the seat cushion backward while moving a front end portion of the seat cushion downward. The vehicle seat device according to any one of claims 1 to 3, wherein the seat cushion movable mechanism includes a shaft support portion connected to a side portion of the seat cushion and a long hole portion into which the shaft support portion is fitted. The rear end portion of the seat cushion and the lower end portion of the seat back are arranged with a gap in the vertical direction,
The vehicle seat device according to any one of claims 1 to 4, wherein the seat back includes a covering portion that hangs down from the seat back and is displaceable when contacting the rear end portion of the seat cushion. . The seat back is supported on the seat cushion so as to be able to move forward,
The vehicle seat device according to any one of claims 1 to 5, wherein the seat back lower end portion is provided with a retracting portion for allowing the seat back to move forward. The seat back is supported on the seat cushion so as to be able to move forward,
The said seat cushion movable mechanism is equipped with the interlocking mechanism which moves the said seat cushion to the position before a movement in conjunction with the forward movement operation | movement of this seat back, when the said seat back moves forward. The vehicle seat device according to claim 1.

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