JP2010254065A - Vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress a free space amount on a seat front side required for action allowing an ottoman to be developed to the seat front side in such a configuration that the ottoman is developed to the seat front side by action switched to a comfortable posture by tilting a seat body backward. <P>SOLUTION: The seat body 1 is configured to be coupled with a slide rail 5 installed on a floor F and to be integrated with a seat back 2 to slide in a front and rear direction of a vehicle. The rear part 5C of the slide rail 5 has a downward bent shape to be switched to the comfortable posture by tilting the seat body 1 backward through backward sliding of the seat body 1. The ottoman 6 is linked to a seat cushion 3 and the floor F (slide rail 5) to perform link motion to be raised to the front side by the backward sliding that tilts the seat body 1 backward and is developed and moved to a use position where it is functioned as a footrest from a storage position where it is folded in the front part of the seat cushion 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat in which an ottoman functioning as a footrest is provided at a front portion of a seating portion.

  2. Description of the Related Art Conventionally, there is a vehicle seat in which an ottoman is lifted forward and switched to a state of functioning as a footrest in accordance with an operation of tilting a seat body backward to switch to a comfortable posture. Here, in the following Patent Document 1, the seat body is configured to be able to slide on a slide rail installed on the floor, and the seat body is tilted backward by the movement of sliding the seat body forward. A technique is disclosed in which an ottoman that is switched to a comfortable posture and is linked to the front portion of the seat cushion is raised to the front side.

JP-A-8-266370

  However, in the prior art disclosed above, the ottoman is raised on the further front side of the seat body moved forward in order to be switched to the comfort posture, and a configuration that requires a lot of free space on the front side of the seat It has become.

  The present invention was devised as a solution to the above-described problem, and the problem to be solved by the present invention is that the ottoman is deployed to the front side of the seat by an operation of tilting the seat body backward and switching to a comfortable posture. An object of the present invention is to reduce the amount of free space on the front side of the seat necessary for such operation.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
A first invention is a vehicle seat in which an ottoman functioning as a footrest is provided at a front portion of a seating portion. The seating part is connected to a slide rail installed on the floor, and is configured to be able to slide in the vehicle front-rear direction integrally with the backrest part. The slide rail has a shape in which the rear portion is bent downward so that the seat portion is slid rearward so that the seat portion can be tilted backward integrally with the backrest portion and switched to a comfortable posture state. The ottoman is linked to the seat and the floor. Ottoman is used to function as a footrest from the stowed position folded on the front part of the seating part by linking it so that it is raised to the front side by a backward tilting operation that slides the seating part backward with respect to the floor Unfold and move to position.

  According to the first invention, the ottoman is raised to the front side of the seating portion and functions as a footrest in conjunction with the movement of the seating portion and the backrest sliding backward and switching to the comfortable posture. Is switched to. As described above, the seat portion and the backrest portion constituting the seat body slide and move rearward, while the ottoman expands and moves forward, so that the seat front side necessary for such operation is provided. The amount of free space can be reduced.

  Next, according to a second aspect of the present invention, in the first aspect described above, the link connecting structure for the seat portion and the floor of the ottoman is such that the ottoman and the front portion of the seat portion are linked by the first link, and the ottoman and the floor are connected. The support member fixed to the link is linked by a second link, and each link has a link connection structure in which each link rotates so as to raise the ottoman to the front side as the seat slides backward. .

  According to the second aspect of the present invention, the ottoman is linked to the front portion and the floor of the seating portion by the first link and the second link, respectively, so that the ottoman is moved to the front side as the seat portion slides backward. The link movement can be made to wake up. In this way, the link structure that unfolds the ottoman in the forward direction along with the rear slide of the seating portion can be realized with a simple configuration.

  Next, according to a third aspect, in the first or second aspect described above, the shape bent downward at the rear portion of the slide rail is a shape smoothly curved downward.

  According to the third aspect of the present invention, the shape of the lower portion of the slide rail that is bent downward is smoothly curved downward, so that the seat portion can be gently lowered along with the rear slide of the seat portion. It can be tilted backwards. In addition, since the seating portion is less likely to stick to the bent portion of the slide rail when sliding, the seating portion can be smoothly slid.

1 is a side view illustrating a configuration of a vehicle seat according to a first embodiment. It is a side view showing the state where the seat body was switched to an easy posture.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the configuration of the vehicle seat according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle seat according to the present embodiment is configured as a seat for the second row behind the driver's seat of the vehicle, and the seat body 1 includes a seat back 2 serving as a backrest portion. The seat cushion 3 is a seating portion. The seat body 1 is configured such that a lower frame 3B that forms a lower skeleton of a seat cushion 3 is slidably connected to a pair of left and right slide rails 5 fixedly installed on a floor F.

  The above-described seat back 2 is a cushion frame that forms the skeleton of the seat cushion 3 via the reclining device 4 that functions as a rotating shaft device in which the lower end portions of the left and right sides of the back frame 2A that forms the skeleton can respectively be rotationally fastened. It is connected to the rear ends of the left and right sides of 3A. Here, each reclining device 4 is normally held in an operating state of a lock in which the backrest angle of the seat back 2 is fixed (rotated) by urging.

  And each reclining device 4 can perform the operation of adjusting the backrest angle of the seat back 2 by releasing the locked state all at once with the operation of pulling up the operation lever 4R connected thereto. Switch to state. Then, the backrest angle of the seat back 2 is adjusted to a desired angle position, and the release operation of the operation lever 4R is stopped, whereby each reclining device 4 is returned to the operation state locked by the urging force. Is fixed at the adjusted backrest angle position.

  Further, the lower frame 3B is integrally coupled to the cushion frame 3A of the seat cushion 3, and sliders Ba, which are slidably mounted on the slide rail 5 at the lower ends of the front end side and the rear end side thereof, Bb is assembled. Accordingly, the seat body 1 having the above-described configuration is configured to be able to slide in the vehicle front-rear direction along the rail shape of the slide rail 5 in a state where the seat back 2 and the seat cushion 3 are integrated. Yes.

  Incidentally, in the seat body 1 described above, the lock claw Ca of the lock body 3C provided on the lower frame 3B is normally pushed into a lock hole (not shown) formed in the bottom surface portion of the slide rail 5 by urging. By being held in this state, the sliding movement with respect to the slide rail 5 is held in a locked state. In this slide lock state, when an occupant seated on the seat body 1 operates a release lever (not shown) provided at a side portion of the seat cushion 3, the operation arm 3D connected to the lock body 3C is operated. Thus, the lock claw Ca is removed from the lock hole and released.

  Here, each slide rail 5 described above is provided with its front end portion and rear end portion integrally fixed on the floor F by support brackets 5A and 5B. These slide rails 5 have a rail shape that extends straight in the front-rear direction from the front end portion to the vicinity of the center portion, but the rear portion 5C is formed in a shape that is smoothly curved downward. Has been. Thereby, as shown in FIG. 1, when the seat body 1 is positioned in the rail region where the rail shape of the slide rail 5 extends horizontally, as shown in FIG. The seated occupant is held in a normal seating posture that can support the seating posture.

  However, as shown in FIG. 2, the seat body 1 releases the slide lock state by the lock body 3 </ b> C described above, and slides the sliders Ba and Bb to the vehicle rear side along the rail shape of the slide rail 5. As a result, the whole can be switched to a comfortable posture which is inclined backward from the normal sitting posture shown in FIG. Specifically, the seat body 1 is switched to a rearward tilted posture in which the rear portion sinks by sliding the slider Bb on the rear end side to a curved region below the rear portion 5C of the slide rail 5. .

  Returning to FIG. 1, an ottoman 6 that functions as a footrest for a seated occupant is disposed at the front portion of the seat cushion 3 described above. The ottoman 6 is rotatably linked to the front portion of the seat cushion 3 and the front portion of the slide rail 5 by a pair of left and right first links 7 and second links 8. Specifically, the right end of the first link 7 is rotatable at a pair of left and right connecting arms 3E provided integrally connected and fixed to the front end of the cushion frame 3A by a connecting shaft 7A. The shaft is connected.

  The other end of the first link 7 on the left side in the figure is rotatably connected to the upper part of the left and right sides of the ottoman 6 by a connecting shaft 7B. The second link 8 has a pair of left and right support arms 5D (one support on the right side of the figure) provided at one end of the right side of the second link 8 integrally coupled and fixed to the front end of the slide rail 5 by a connecting shaft 8A. It corresponds to a member. The other end on the left side of the second link 8 is axially coupled to the lower portions of the left and right sides of the ottoman 6 by a coupling shaft 8B.

  As a result, the ottoman 6 is linked and connected between the seat body 1 and the slide rail 5, and the seat body 1 is attached to the slide rail 5 as can be seen by comparing FIGS. In association with the movement of sliding, the links 7 and 8 are linked in association with the movement and the rotation posture thereof can be changed. Specifically, as shown in FIG. 1, when the seat body 1 is held in a normal seating posture state in which the seat body 1 is located in the slide area closer to the front of the slide rail 5, the ottoman 6 is placed in front of the seat cushion 3. It is held in the posture state of the storage position folded in the part.

  Then, as shown in FIG. 2, the ottoman 6 receives the link motion of the links 7 and 8 in accordance with the movement of the seat body 1 that slides rearward to the backward tilted posture, and the seat cushion 3 It is raised to the front side of the door and moves toward the use position where it can function as a footrest. Specifically, the ottoman 6 is configured such that the raising amount gradually increases with the progress of the backward tilt movement accompanying the rear slide of the seat body 1, Thus, it is possible to maintain a posture that can be suitably adapted as a footrest.

  As a result, the seated occupant can sit on the seat body 1 in a more comfortable posture. Further, in addition to the operation of switching the seat body 1 from the normal seating posture to the comforting posture by sliding backward, the operation of adjusting the backrest angle of the seat back 2 described above is performed, so that the sitting posture of the seated occupant can be made easier. It can be switched to the posture, which is preferable.

  Thus, according to the vehicle seat of the present embodiment, the ottoman 6 is raised to the front side of the seat cushion 3 in conjunction with the movement of the seat body 1 sliding backward and switching to the comfortable posture. It is switched to a state that functions as a load. Thus, while the seat body 1 slides and moves backward, the ottoman 6 unfolds and moves forward, thereby reducing the amount of free space on the front side of the seat necessary for this operation. Can do.

  In addition, since the ottoman 6 is linked to the front portion of the seat cushion 3 and the floor F (slide rail 5) by the first link 7 and the second link 8, respectively, the seat body 1 is moved backward. The ottoman 6 can be linked so as to be lifted forward. As described above, the link structure that causes the ottoman 6 to expand and move forward with the rear slide of the seat body 1 can be realized with a simple configuration.

  Further, since the shape bent downward of the rear portion 5C of the slide rail 5 is smoothly curved downward, the posture of the seat body 1 is gently inclined backward as the seat body 1 slides backward. Can continue. In addition, since the seat body 1 is less likely to stick to the bent portion of the slide rail 5 when sliding, the seat body 1 can be smoothly slid.

  As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, the configuration in which the rear portion of the slide rail is bent downward may be bent in a single step or multiple steps in addition to a curved shape. In addition, the link structure that links the ottoman to the seat (seat cushion) or floor may be a special link structure as long as the ottoman is raised to the front side as the seat slides backward. It is not limited to.

1 Seat body 2 Seat back (backrest)
2A Back frame 3 Seat cushion (sitting part)
3A Cushion frame 3B Lower frame Ba, Bb Slider 3C Lock body Ca Lock claw 3D Operation arm 3E Connection arm 4 Reclining device 4R Operation lever 5 Slide rail 5A, 5B Support bracket 5C Rear part 5D Support arm (support member)
6 Ottoman 7 First link 7A, 7B connecting shaft 8 Second link 8A, 8B connecting shaft F Floor

Claims (3)

A vehicle seat provided with an ottoman functioning as a footrest at the front of the seating portion,
The seating portion is connected to a slide rail installed on the floor, and is configured to be integrated with the backrest portion and to slide in the vehicle front-rear direction. The slide rail slides the seating portion rearward. By doing so, the seat portion is tilted backward integrally with the backrest portion so that the rear portion is bent downward so that the seat portion can be switched to a comfortable posture state, and the ottoman is linked to the seat portion and the floor. The use position that functions as a footrest from the storage position folded on the front part of the seating part by performing a link movement so that the seating part is raised to the front side by a backward tilting operation that slides the seating part backward with respect to the floor A vehicle seat characterized in that the vehicle seat is moved to the end. The vehicle seat according to claim 1,
In the link connecting structure of the ottoman to the seating part and the floor, the ottoman and the front part of the seating part are linked by a first link, and the support member fixed to the ottoman and the floor is a second link. The vehicle seat is characterized in that the links are linked together, and each link has a link connection structure that rotates to raise the ottoman forward as the seat slides backward. The vehicle seat according to claim 1 or 2,
A vehicular seat characterized in that a shape bent downward of a rear portion of the slide rail is a shape smoothly curved downward.

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