JP5862875B2 - Sheet device - Google Patents

Description

  The present invention relates to a sheet apparatus.

  2. Description of the Related Art Conventionally, vehicle seats that can be moved forward and turned, etc., have been used for the purpose of improving ease of getting on and off the rear row seats arranged rearward and expanding cargo space.

  For example, a vehicle seat is known in which the seat cushion is raised along the front surface of the seat back by rotating the front end downward while lifting the rear end of the seat cushion upward (Patent Document 1). In this vehicle seat, a space is secured behind the seat by moving the seat forward while the seat cushion is raised.

  A vehicle seat device is also known in which the rear side of the seat cushion is flipped up and the seat back is tilted forward to reduce the seat front-rear width (Patent Document 2).

  There is also known a vehicle seat in which the entire seat is flipped forward and rotated around the lower end of the front leg portion that supports the vicinity of the front end of the seat cushion (Patent Document 3). Thus, the seat cushion is housed in the recess formed in the floor by tilting the seat cushion backward with the upper end of the front leg portion as the center from the state where the entire seat is flipped forward. In this state, when the seat back is further moved forward toward the seat cushion, the back surface of the seat back becomes substantially horizontal, and the seat is dive-down.

  The seat cushion is supported by a support member slidably attached to the guide rail on the lower floor, and the seat back is supported by a receiving member slidably attached to the guide rail on the upper floor above the lower floor. A vehicle seat structure is also known (Patent Document 4). In this seat structure, the seat cushion and the seat back are each folded and can be accommodated in the lower floor.

JP 2006-240562 A JP 2008-030657 A JP 2002-193003 A JP 2005-047359 A

  Here, when the vehicle seat described in Patent Literature 1 is moved in the front-rear direction, the seat support member that supports the seat cushion and the seat back needs to be moved along the rail on the floor. In this case, the movable range of the seat support member in the front-rear direction is limited to a range in which rails can be arranged on the floor. As a result, for example, when the rail cannot be arranged in front of the seat due to a step formed on the floor, the seat support member cannot be moved sufficiently forward, improving the ability to get on and off the rear row seat, and the luggage compartment There was a possibility that space expansion would be insufficient. In addition, if the two-step operation of moving the seat forward after the seat cushion is raised along the front surface of the seat back is not performed, a space cannot be secured behind the seat, and the operation is complicated. It was.

  Moreover, in the vehicle seat device described in Patent Document 2, both the seat cushion and the seat back are only rotatably attached to the base member, and the front-rear width of the seat is smaller than the front-rear width of the base member. I couldn't. For this reason, there is a possibility that the ease of getting on and off the rear row seat and the expansion of the cargo space are insufficient.

  Further, in the vehicle seat described in Patent Document 3, there is a possibility that the occupant's feet in the rear row seat may be caught when the seat that is flipped forward is returned to the rear. Further, the mechanism may be complicated, for example, by providing a cylinder for applying a biasing force for flipping the seat forward.

  Moreover, in the vehicle seat structure described in Patent Document 4, the folding mechanism of the seat cushion and the seat back is complicated, and the procedure for folding them is complicated. Further, since the folded seat cushion and the seat back are accommodated, it is necessary to secure a wide space on the lower floor in front of the seat, which may restrict seat arrangement.

  As described above, in the conventional seat device, there is room for further improvement in terms of getting on and off the rear seats arranged behind, expansion of the cargo space, safety during operation, simplicity of the mechanism, or operability. there were.

  The present invention has been made in order to solve the above-described problems of the prior art, and while ensuring safety and good operability, it is possible to improve the ease of getting on and off the rear row seat disposed rearward and the luggage compartment. An object of the present invention is to provide a seat device capable of expanding the space.

In order to achieve the above object, according to the present invention, a seat device is a seat device disposed on a floor of a vehicle, the seat cushion being attached to a part of the vehicle or a seat base, and the seat cushion. The seat back located at the rear, the front connecting means for connecting the seat cushion to a part of the vehicle or the seat base so that the rear of the seat cushion can swing in the front-rear direction, and the seat back moved in the front-rear direction The rear part of the seat cushion so that the rear part of the seat cushion can swing in the vertical direction with respect to the front part and the seat back can move in the front-rear direction. a side coupling means after coupling to the seat back so as to be able to defeat forward, the seat back support means for supporting the lower portion of the seat back, shea Restricting means attached to the rear part of the seat cushion for restricting the rear part of the seat cushion from swinging downward from the seating position, and the front connecting means is capable of swinging the front part of the seat cushion downward and forward As described above, the front link for connecting the seat cushion to a part of the vehicle or the seat base is provided, and the rear connection means moves the seat back forward and moves forward in a state where the seat cushion is held in a substantially horizontal state. A rear link that connects the seat cushion and the seat back so that the dive down operation is possible so that the seat cushion and the seat back move downward, and the restricting means is a pin protruding in the vehicle width direction from the seat cushion The rear link of the rear connecting means is S-shaped with a recess, and the pin and the S-shaped recess are in contact with each other. More, characterized in that it is possible to dive down operation.
In the present invention configured as described above, the seat back is slid in the front-rear direction in conjunction with the vertical swing of the rear portion of the seat cushion. Thus, the seat back can be moved sufficiently forward while raising the seat cushion only by a simple operation of lifting the rear portion of the seat cushion. Moreover, since the operation | movement which raises a seat back etc. upward is not required, it can prevent that the passenger | crew's foot | leg of a back row seat is pinched. In other words, while ensuring safety and good operability, it is possible to improve the ease of getting on and off the rear seat and to expand the luggage space at the time of walk-in. In addition, the seat cushion can be moved forward and downward while keeping the seat surface substantially horizontal, and the seat back can be moved forward so as to overlap this seat cushion (so-called dive-down) It is possible to achieve both improvement in boarding / exiting performance and expansion of cargo space by dive down. Further, since the rear portion of the seat cushion swings downward from the seating position is restricted by the restricting means, it is possible to easily achieve both the use of the seat device at the seating position and the enlargement of the luggage space by dive down. Further, the dive down operation and the support of the seat cushion can be realized with a simple configuration.

In the present invention, preferably, the seat base is movable in the front-rear direction on the floor of the vehicle.
In the present invention configured as described above, the seat cushion and the seat base can be moved further forward, and further improvement in getting on and off the rear seat at the time of walk-in and expansion of the luggage space can be realized more reliably. be able to.

In the present invention, preferably, a step portion extending downward is formed in a front area of the floor where the vehicle seat device is installed.
In the present invention configured as described above, even if it is difficult to provide a rail for moving the seat cushion in the front-rear direction in front of the seat cushion, the seat back is moved sufficiently forward while raising the seat cushion. Thus, it is possible to improve the ease of getting on and off the rear seat at the time of walk-in and to enlarge the cargo space.

  According to the seat device of the present invention, it is possible to improve the ease of getting on and off the rear row seat disposed rearward and expand the cargo space while ensuring safety and good operability.

It is a side view showing a vehicle provided with a seat device by an embodiment of the present invention. It is a side view which shows the state which exists in the seating position of the passenger | crew of the seat apparatus by embodiment of this invention. It is a side view which shows the initial transition operation | movement to the walk-in time of the sheet | seat apparatus by embodiment of this invention. It is a side view which shows the intermediate transfer operation | movement to the time of the walk-in of the sheet | seat apparatus by embodiment of this invention. It is a side view which shows the last transfer operation | movement at the time of walk-in of the sheet | seat apparatus by embodiment of this invention. It is a side view which shows the state at the time of the dive down of the sheet | seat apparatus by embodiment of this invention.

Hereinafter, a seat device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, a vehicle including a seat device according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a side view showing a vehicle including a seat device according to an embodiment of the present invention.

  As shown in FIG. 1, the vehicle 1 is provided with a floor 6 below the passenger compartment. On the floor 6, the first row sheet 12, the second row sheet 14, and the third row sheet 16 are sequentially arranged from the front to the rear. Step portions 6a and 6b that are lowered toward the front are formed in front of the region where the second row sheet 14 and the third row sheet 16 are arranged.

  A side opening 2a for the front side door 2 is formed on the side portion of the vehicle 1 corresponding to the vehicle width direction of the first row seat 12, and similarly corresponds to the vehicle width direction of the second row seat 14. A side opening 4a for the rear side door 4 is formed at the position. However, since there is no side door at the position corresponding to the vehicle width direction of the third row seat 16, no opening is formed. Therefore, an occupant seated on the third row seat 16 gets into the vehicle 1 from the side opening 4a for the rear side door 4.

  Hereinafter, an embodiment in which the sheet device of the present invention is applied to the second row sheet 14 will be described. The sheet device according to the embodiment of the present invention may be applied to the first row sheet 12 or the third row sheet 16.

  FIG. 2 is a side view showing a state in which the seat device is in the seating position of the seat device according to the embodiment of the present invention. As shown in FIG. 2, the second row seat 14 includes a seat cushion 20, a seat back 22, and a base 32. Here, as shown in FIG. 2, in the second row of seats 14, a position where the seat cushion 20 is substantially horizontal and the seat back 22 stands is called a seating position.

  The bases 32 of the second row seats 14 are disposed below the left and right sides of the seat cushion 20, and the bases 32 are attached to the floor 6 via base sliding mechanisms 34. The base slide mechanism 34 includes a lower rail 34 a attached to the floor 6 and an upper rail 34 b attached to the base 32, and the base 32 can move on the floor 6 in the front-rear direction.

The seat cushion 20 is coupled to the base 32 by the front coupling mechanism 24. The front coupling mechanism 24 includes a seat cushion shaft 24a extending in the vehicle width direction inside the front of the seat cushion 20, a pair of front links 24b having their respective upper ends coupled to both ends of the seat cushion shaft 24a, and bases 32 is provided with a pair of base shafts 24c extending in the vehicle width direction and connected to the lower end of the front link 24b.
During the walk-in operation described later, the front link 24b is locked with respect to the seat cushion shaft 24a so that it cannot rotate, whereas it can rotate with respect to the base shaft 24c. . Therefore, since the seat cushion 20 is coupled to the base 32 by the front coupling mechanism 24 during the walk-in operation, the rear portion of the seat cushion 20 can swing in the vertical direction about the base shaft 24c. In a dive down operation described later, the front link 24b is rotatable with respect to both the seat cushion shaft 24a and the base shaft 24c. For this reason, during the dive down operation, the seat cushion 20 can be moved forward and downward.

  The seat back 22 is disposed on the base 32 via the seat back coupling mechanism 28. Specifically, a reclining shaft 28a extending in the vehicle width direction is provided inside the lower portion of the seat back 22, and a pair of seat back connecting members 28b are attached to both ends of the reclining shaft 28a. The seat back connecting member 28b A seat back slide mechanism 26 is provided at the lower end of the seat. The seat back sliding mechanism 26 includes a lower rail 26a attached to the base 32 and an upper rail 26b attached to the seat back connecting member 28b. As a result, the seat back 22 can swing in the front-rear direction about the reclining shaft 28a, and can be moved in the front-rear direction by the seat back slide mechanism 26 alone.

Next, rear connection mechanisms 30 that connect the rear portion of the seat cushion 20 and the lower portion of the seat back 22 are provided on both the left and right sides of the second row seats 14. The rear coupling mechanism 30 includes a seat back shaft 30a extending in the vehicle width direction inside the seat back 22, a seat cushion shaft 30b extending in the vehicle width direction inside the seat cushion 20, and both ends of the seat back shaft 30a. A pair of rear links 30c that rotatably connect the both ends of the seat cushion shaft 30b are provided. Here, the rear side link 30c is S-shaped, and a recess 30d is formed on the front side thereof.
The seat cushion 20 is provided with a pin 36 that is positioned above the recess 30d of the rear link 30c and contacts the recess 30d when the seating surface of the seat cushion 20 is substantially horizontal. The pin 36 comes into contact with the recess 30d of the rear link 30c, so that the rear portion of the seat cushion 20 does not sink below the seating position.

Next, the walk-in operation of the seat apparatus according to the above-described embodiment of the present invention will be described with reference to FIGS.
FIG. 3 is a side view showing the initial transition operation to the walk-in of the seat device according to the embodiment of the present invention. FIG. 4 is a side view showing an intermediate transition operation during a walk-in of the seat device according to the embodiment of the present invention. FIG. 5 is a side view showing the final transition operation during the walk-in of the seat device according to the embodiment of the present invention. In each of these drawings, the seat back of the first row seat 12 and the side opening 4a for the rear side door 4 are represented by phantom lines.

3 to 5, the front side link 24b is locked to the seat cushion shaft 24a by a locking mechanism (not shown), while it is rotatable about the base shaft 24c. Thus, the case where the rear portion of the seat cushion 20 can swing in the vertical direction with the base shaft 24c as an axis will be described. The front link 24b is locked to the base shaft 24c by a lock mechanism (not shown), and is rotatable with respect to the seat cushion shaft 24a. The rear part of the seat cushion 20 may be swingable in the vertical direction with the axis as the axis.
3 to 5, the case where the swing of the seat back 22 around the reclining shaft 28a is limited by a lock mechanism (not shown) will be described.

  When the rear portion of the seat cushion 20 is lifted upward from the seating position shown in FIG. 2, the rear portion of the seat cushion 20 swings forward and upward about the base shaft 24c as shown in FIG. At this time, the pin 36 of the seat cushion 20 is detached upward from the recess 30d of the rear link 30c. When the seat cushion shaft 30b moves forward and upward together with the rear portion of the seat cushion 20, the rear link 30c moves forward while rotating clockwise in a left side view, and the seat back 22 is moved by the rear link 30c. It is pulled forward from the seating position (ie the position shown in FIG. 2).

  When the rear part of the seat cushion 20 is further lifted upward from the position shown in FIG. 3, as shown in FIG. 4, the rear part of the seat cushion 20 swings further forward and upward from the position shown in FIG. To do. When the seat cushion shaft 30b moves forward and upward together with the rear portion of the seat cushion 20, the rear link 30c moves forward while rotating clockwise in a left side view, and the seat back 22 is moved by the rear link 30c. It is further pulled forward from the position shown in FIG. By appropriately designing the positional relationship between the seat back shaft 30a and the seat cushion shaft 30b and the length of the rear link 30c (that is, the distance between the seat back shaft 30a and the seat cushion shaft 30b), FIG. As shown, the seat back 22 can be brought into close contact with the seat cushion 20 erected along the seat back 22. Thereby, the seat back 22 can be moved sufficiently forward, and the boarding / exiting ability from the side opening 4a for the rear side door 4 to the third row seat 16 at the time of walk-in can be improved. Moreover, since the operation | movement which raises the seat back 22 and the base 32 upward is not required, it can prevent that the passenger | crew's foot | leg of the 3rd row | line seat 16 is pinched.

  When the rear portion of the seat cushion 20 is pushed downward from the position shown in FIG. 4, the rear portion of the seat cushion 20 swings rearward and downward about the base shaft 24c. When the seat cushion shaft 30b moves rearward and downward together with the rear portion of the seat cushion 20, the rear link 30c moves rearward while rotating counterclockwise in the left side view, and the seatback 22 is moved by the rear link 30c. Is pushed back to the seating position shown in FIG. 2 via the position shown in FIG. When the rear portion of the seat cushion 20 is pushed down to the seating position, the pin 36 of the seat cushion 20 comes into contact with the concave portion 30d of the rear link 30c from above. Since the seat cushion 20 is thus supported by the rear link 30c via the pins 36, the seat cushion 20 does not descend further from the seating position.

As described with reference to FIGS. 2 to 4, the seat back 22 is slid in the front-rear direction in conjunction with the vertical swing of the rear portion of the seat cushion 20. Thus, the seat back 22 can be moved sufficiently forward while the seat cushion 20 is erected only by a single operation of lifting the rear portion of the seat cushion 20. That is, the boarding / alighting property to the third row seat 16 can be improved while ensuring good operability.
Further, it is only necessary that the rear portion of the seat cushion 20 can swing in the vertical direction with respect to the front portion thereof, and it is not necessary to provide a rail for moving the seat cushion 20 in the front-rear direction in front of the seat cushion 20. Accordingly, as shown in FIGS. 2 to 4, the seat cushion 20 is erected even when the step portion 6 a extending downward is formed in the front region of the floor 6 on which the second row seat 14 is installed. The seat back 22 can be moved sufficiently forward, and the ease of getting on and off the third row seat 16 can be improved.

  Further, as shown in FIG. 5, the base 32 can be slid forward from the position shown in FIG. That is, when the seat cushion 20 or the seat back 22 is pushed forward from the position shown in FIG. 4, the base 32 slides forward on the floor 6 by the base slide mechanism 34. Thereby, the seat cushion 20 and the base 32 can be moved further forward from the position shown in FIG. 4, and the boarding / exiting ability to the third row seat 16 can be further improved.

FIG. 6 is a side view showing a state when the sheet apparatus according to the embodiment of the present invention is dive-down. In the seating position shown in FIG. 2, the lock mechanism (not shown) that locks the front link 24b with respect to the seat cushion shaft 24a is released, and the lock that locks the seat back 22 with respect to the reclining shaft 28a. Release the mechanism (not shown). When the upper portion of the seat back 22 is pushed forward in this state, as shown in FIG. 6, the upper portion of the seat back 22 swings forward and downward about the reclining shaft 28a. When the seatback shaft 30a moves forward and downward together with the seatback 22, the rear link 30c moves forward and downward, and the pin 36 in contact with the recess 30d of the rear link 30c moves forward and downward. At the same time, the front link 24b rotates counterclockwise as viewed from the left side with the base shaft 24c as the center, and as shown in FIG. 6, the seat cushion 20 is moved forward and downward while the seat surface is kept substantially horizontal. Move to.
In this way, the seat cushion 20 can be moved forward and downward while the seat surface is kept substantially horizontal, and the seat back 22 can be moved forward so as to overlap the seat cushion 20 (so-called dive down). Through the operation shown in FIG. 5, it is possible to achieve both improvement in boarding / exiting performance to the third row seat 16 during walk-in and expansion of the cargo space 8 by dive down.

Finally, a modification of the seat device will be described.
2 to 6, the case where the base 32 is installed on the floor 6 so as to be slidable in the front-rear direction on the floor 6 by the base slide mechanism 34 has been described. However, the base slide mechanism 34 is omitted, and the base 32 may be formed integrally with the floor 6.
2 to 6, the case where the seat cushion 20 is coupled to the base 32 by the front coupling mechanism 24 including the seat cushion shaft 24a, the front link 24b, and the base shaft 24c has been described. The seat cushion 20 may be coupled to the base 32 by a single shaft. In this case, since the seat cushion 20 cannot be moved forward and downward with the seat surface kept substantially horizontal, the dive down operation as shown in FIG. 6 cannot be performed, but as shown in FIGS. The operation of the second row sheet 14 can be realized with a simpler configuration.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Front side door 2a, 4a Side opening 4 Back side door 6 Floor 6a, 6b Step part 8 Cargo space 12 First row seat 14 Second row seat 16 Third row seat 20 Seat cushion 22 Seat back 24 Front Connection mechanism 24a Seat cushion shaft 24b Front link 24c Base shaft 26 Seat back slide mechanism 26a Lower rail 26b Upper rail 28 Seat back connection mechanism 28a Reclining shaft 28b Seat back connection member 30 Rear connection mechanism 30a Seat back shaft 30b Seat cushion shaft 30c Rear Side link 30d Recess 32 Base 34 Base slide mechanism 34a Lower rail 34b Upper rail 36 Pin

Claims (3)

A seat device disposed on a floor of a vehicle,
A seat cushion attached to a part of the vehicle or the seat base;
A seat back arranged at the rear of the seat cushion;
Front coupling means for coupling the seat cushion to a part of the vehicle or the seat base so that the rear portion of the seat cushion can swing in the front-rear direction;
A slide mechanism that supports the seat back so as to be movable in the front-rear direction;
Rear side coupling means for coupling the seat back to the rear portion of the seat cushion so that the rear portion of the seat cushion can swing in the vertical direction with respect to the front portion and the seat back can move in the front-rear direction; ,
A seat back support means for supporting a lower portion of the seat back so that the seat back can be tilted forward;
A restricting means attached to the rear portion of the seat cushion for restricting the rear portion of the seat cushion from swinging downward from the seating position;
The front connecting means includes a front link that connects the seat cushion to a part of the vehicle or the seat base so that the front portion of the seat cushion can swing downward in the front side.
The rear connecting means allows a dive-down operation in which the seat cushion and the seat back move downward by tilting the seat back forward and moving it forward while the seat cushion is held in a substantially horizontal state. With a rear link that connects the seat cushion and seat back,
The restricting means is a pin protruding from the seat cushion in the vehicle width direction, and the rear link of the rear connecting means is S-shaped with a recess, and the pin and the S-shaped recess are in contact with each other. Thus, a dive down operation is possible . The seat device according to claim 1 , wherein the seat base is movable in the front-rear direction on the floor of the vehicle. The seat device according to claim 1 or 2 , wherein a step portion extending downward is formed in a front area of a floor on which the seat device of the vehicle is installed.

Images