JP2002120607A - Seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat device for a vehicle capable of using a space for an occupant as a wide baggage compartment space. SOLUTION: A seat cushion 1 is supported on a seat supporting member 13 free to change its position at a seat back receiving position moved to the front side from a using position. A seat back 2 is supported on the seat supporting member 13 free to revolve to change from a using posture to a forward fallen posture. When the seat back 2 comes to be in the forward fallen posture, a head end side part 2a of the seat back 2 is placed on the upper surface side of the seat cushion 1, received and supported, and a base end side part 2b of the seat back 2 enters the rear of the seat cushion 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle seat device having a seat cushion and a seat back.

[0002]

2. Description of the Related Art Conventionally, in a vehicle seat apparatus, as shown in, for example, Japanese Patent Application Laid-Open No. 9-99767, a seat cushion is jumped from a use position to a front side and switched to an upright posture, thereby eliminating the seat cushion. In some cases, it was easier to load luggage on the seat by tilting the seat back from the use position to the position, or it was possible to use the occupant space in the luggage space connected to the luggage room behind the seat .

[0003]

In the conventional seat apparatus described above, for example, when the rear seat is constructed, the seat cushion in the upright position becomes an obstacle, and the front seat is moved rearward. It was sometimes difficult to adjust the slide and reclining. In this case, if the headrest is attached to the seatback, the headrest may have to be removed so as to prevent the headrest from hitting the seat cushion so that the seatback cannot be sufficiently moved forward. Further, there is a case where a long object cannot be loaded or becomes difficult to be loaded on the seat cushion.

[0004] In the case where the seat cushion is left in the use position so that it does not easily become the above-mentioned obstacle, and the seat back is laid on the seat cushion by falling down on the seat cushion, the seat cushion which is in an overlapped state is used. The bulk with the seat back is high, and the distance from the seat device to the ceiling is narrow, making it difficult to load tall luggage.

[0005] It is an object of the present invention to provide a luggage space on a seat that is easy to load even a long or tall object, and to prevent a front seat from being inadvertently adjusted even in the case of a rear seat. It is an object of the present invention to provide a vehicle seat device which can be obtained while being easy.

[0006]

According to a first aspect of the present invention, a seat support member is provided so that a position of a seat cushion can be independently changed independently of a seat back at a seat back receiving position moved forward from a use position. When the seat back is in the forward leaning position, the front end portion of the seat back rests on the upper surface of the seat cushion at the seat back receiving position and is received and supported, and the base end portion of the seat back is received by the seat back. When the seat cushion is configured to enter the rear of the seat cushion at the stop position, the seat cushion is moved to the front position from the position where it should be used when the seat cushion is set to the seat back receiving position and the seat back is in the forward tilted posture. The seat back rests on the seat cushion and the base end of the seat back enters the back of the seat cushion. . That is, the seat back and the seat back do not overlap and fall on the seat cushion in the use position, but overlap with each other with the seat cushion being displaced in the front-rear direction of the seat cushion. As a result, the volume of the overlapped seat cushion and seat back is reduced as compared with the case where the seat back overlaps the seat cushion in the use position, and the space on the seat device is reduced to the luggage space. Can be.

In addition, when obtaining the luggage space, the seat cushion moves forward from the use position, but is positioned upward at the seat back receiving position, and the luggage space does not protrude into the luggage space. If the front and back length of the space is as long as possible and the seat back has a headrest, while the seat cushion does not protrude into the movement path of the headrest so that the seatback can be tilted with the headrest attached, In the case of the rear seat, the seat cushion does not stand behind the front seat, and it is easy to secure space for sliding and reclining adjustment of the front seat behind the front seat, while obtaining luggage space. .

According to a second aspect of the present invention, when the seat cushion is at the seat back receiving position, the seat cushion is positioned at a lower level than when the seat cushion is at the use position. When the luggage space is obtained, the seat cushion is used for seating when the luggage space is obtained, while the seat cushion is positioned at a higher level than when obtaining the luggage space And the height from the seating device to the ceiling is higher than when the vehicle is being operated, and a luggage space with a high vertical height can be obtained.

According to a third aspect of the present invention, when the thickness of the front end side of the seat cushion is larger than the thickness of the rear end side, and when the seat cushion is in the use position, the front end side of the upper surface side of the seat cushion is the rear end. When the seat cushion is in the use position, the front end side of the seat cushion is configured such that the thickness of the seat back at the front end side is smaller than the base end side thickness. The thickness of the seat back is larger than the thickness of the rear end side, the thickness of the front end side of the seat back is smaller than the thickness of the base end side, and the front end side on the upper side of the seat cushion is at a higher level than the rear end side. In each case, when getting a luggage space while being able to sit in as comfortable a position as possible,
The seat cushion and the seat back are displaced from each other in the front-rear direction of the seat cushion and overlap with each other with small thicknesses, and the bulk of the seat cushion and the seat back in the overlapping state is reduced, and from the seat device to the ceiling. The height of the cargo space is as high as possible.

According to a fourth aspect of the present invention, the seat cushion is supported by the seat supporting member via a swing link, and the swing of the swing link moves the seat cushion between the use position and the seat back. If it is configured to change its position to the receiving position, a swing link of an appropriate length is used, compared to the mounting structure that allows the position of the seat cushion to be freely changed by the guide rail. With a simple mounting structure, the seat cushion can be supported so that its position can be freely changed, and the movement stroke of the seat cushion can be set to an appropriate stroke.

When the seat cushion is configured to be moved by a manual operation, even if the operation direction acting on the seat cushion changes, the position between the seat cushion and the swing link or between the swing link and the seat support member is changed. , A relative rotation occurs, and the seat cushion is easily moved while being hardly twisted.

According to a fifth aspect of the present invention, when the swing link is connected to an intermediate portion of the seat cushion in the front-rear direction, even when the seat cushion is configured to be manually moved, The center of gravity of the seat cushion and a portion as close to it as possible are supported by the swing link, and the seat cushion is easily moved while being stabilized so as not to swing back and forth.

According to a sixth aspect of the present invention, there is provided a seat mounting member fixed to the vehicle body in a state where the seat supporting member is slidably supported in the front-rear direction of the seat. By adjusting the slide, the seat cushion and the seat back are moved back and forth, and the mounting position thereof can be adjusted back and forth to a position where the seat can be easily seated.

Further, for example, when a seat cushion is supported by a swinging link so that its position can be freely changed, and a member such as a front seat exists in front of the seat cushion,
When trying to move the seat cushion from the use position to the seat back receiving position, the seat cushion may hit the front member depending on the length of the swing link and the position where the seat cushion is set to be used for seating. As a result, it may not move to the predetermined seat back receiving position. At this time, the seat back member is slid rearward, and the seat cushion is moved rearward from the position set for seating so that the seat back does not hit the front member so that the seat back is received. Moved to a position. With this, even when the swing link is adopted and the front member is present, the seat cushion is set to a position where the seat cushion can be easily seated when seating, and when the luggage space is obtained, the seat cushion is used as the seat back support. By moving to the stop position as much as possible over the longest stroke, the base end side of the seat back can sufficiently enter the rear of the seat cushion.

According to a seventh aspect of the present invention, the seat supporting member is supported by the seat mounting member via the downwardly inclined support rail so as to be slidably adjustable, and is positioned at a lower level as it slides toward the front of the seat. With such a configuration, when the seat support member is slid and adjusted to move the seat cushion and the seat back back and forth, the more the front side is moved, the lower the level of the seat cushion and the seat back becomes, and the rear The further to the side, the higher the level of the seat cushion or seat back. In general, for short people, the seat cushion or seat back is adjusted to the front side and low level side, and for tall people, the seat cushion or seat back is adjusted to the rear side and high level side. Since the seat cushion and the seat back are adjusted to be moved forward and backward, the level of the seat cushion and the seat back can be adjusted in an appropriate direction.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a seat support mechanism 10 is connected to a floor F at the rear of a passenger compartment by connecting a front leg 11a and a rear leg 11b to the upper surface of the floor F. A seat comprising a seat cushion 1 and a seat back 2 is attached to form a seat device on the rear side of a passenger car.

The seat cushion 1 is configured as a front-thick cushion in which the thickness at the front end is larger than the thickness at the rear end. The seat back 2 is configured as a thin seat having a thickness on the distal end side smaller than the thickness on the proximal end side, and is configured as a seat with a headrest provided with the headrest 3 on the distal end side.

The seat supporting mechanism 10 includes the front leg 11a.
The seat mounting member 11 is fixed to the floor F as a vehicle body side portion by a rear leg portion 11b and a support rail 12 provided on an upper portion of the seat mounting member 11. It is constituted by a sheet supporting member 13 supporting the back 2. The seat support member 13 includes the seat mounting body 11.
Are slidably supported by the support rails 12 in the front-rear direction of the seat. The support rail 12 is configured as an inclined rail having a lower front slope that is located at a lower level toward the front side of the vehicle body.

As a result, the slide adjusting mechanism (not shown) provided between the seat support member 13 and the seat mounting body 11 is switched to the unlocked side to switch the seat support member 13.
The seat cushion 1 and the seat back 2 can be moved at once in the front-rear direction by adjusting the slide along the support rail 12, and the seat mounting position can be adjusted back and forth. At this time, the seat support member 13 is located at a lower level as it slides forward in the seat due to the inclined shape of the support rail 12, and the seat becomes lower as it moves forward as shown by a two-dot chain line in FIG. 1 becomes higher as it moves rearward as shown by the solid line in FIG. By switching the slide adjustment mechanism to the lock side and locking the seat support member 13 at the adjusted position, the seat can be fixed at the adjusted mounting position.

The seat cushion 1 is provided with a link connecting portion 4 having a bracket fixedly provided on the bottom surface of an intermediate portion of the seat cushion 1 in the front-rear direction, and a swing link attached to a front end of the seat support member 13. 5 is attached to the sheet support member 13. The swing link 5 is rotatably connected to the link connecting portion 4 and also to the seat support member 13 so as to be rotatable about an axis in a direction along the seat lateral direction.

Thus, the seat cushion 1 is moved in the front-rear direction while being lifted from the seat support member 13, so that the swing link 5 rotates about the axis with respect to the seat cushion 1 and the seat support member is rotated. 1
3, swings in the front-rear direction around the axis and moves independently of the seat back 2 in the seat front-rear direction.

When the seat cushion 1 is moved in this manner, the swing link 5 assumes a mounting posture in which the swing link 5 extends rearward from a connection point to the seat support member 13 as shown by a solid line in FIG. When most of the seat cushion 1 in the front-rear direction is placed on the seat mounting portion 13a of the seat supporting member 13 and is received and supported, the seat cushion 1 is in the use position used for seating. At this time, the seat cushion 1 is in the mounting posture in which the front end side on the upper surface side is located at a higher level than the rear end side. Further, the rear end of the seat cushion 1 enters the lower side of the base end of the seat back 2, and for this entry, the seat back 2 acts as a stopper on the seat cushion 1, and the seat cushion 1
Is fixed in the use position.

As shown by the solid line in FIG. 2, the swing link 5 is in the mounting position extending forward from the seat support member 13, and the front end side of the seat cushion 1 projects forward from the seat support member 13 to provide a seat cushion. When the rear end portion of the seat cushion 1 is received and supported on the front end portion of the seat mounting portion 13a of the seat support member 13, the seat cushion 1 is used to make the occupant space a luggage space. To the seat back receiving position for receiving and supporting the seat back.

When switching the seat cushion 1 from the use position to the seat back receiving position, if the seat is in the use position adjusted to the front side as shown by the two-dot chain line in FIG. 1, the rear side shown by the two-dot chain line in FIG. After moving to the use position of.
That is, when the seat cushion 1 is switched from the front use position to the seat back receiving position, the seat cushion 1 may hit the front seat 6 as it moves to the front side and may not move to the seat back receiving position. is there. Therefore, if the seat cushion 1 is in the front use position, the seat cushion 1 is moved to the rear side and switched to the seatback receiving position while not hitting the front seat 6.

The sheet supporting member 13 is supported by the sheet mounting member 11 with the sheet supporting member 13 in a forwardly lowered position, so that the sheet mounting portion 13a of the sheet supporting member 13 is inclined to a lower level toward the front side. It is configured on the mounting part. Thus, when the seat cushion 1 is at the seat back receiving position, it is at a lower level than when it is at the use position.

The base end of the seat back 2 is rotatably supported around an axis P by a support portion 13b located on the rear end side of the seat support member 13. By switching the reclining mechanism 20 provided between the support portion 13b and the seat back 2 to the unlocking side by the unlocking lever 21, the seat back 2 is moved in the front-rear direction around the axis P with respect to the seat supporting member 13. Can be rotated.

By rotating the seat back 2 in this manner, the seat back 2 is erected as shown by the solid line in FIG. 1 and used for sitting, and as shown by the solid line in FIG. Thus, the occupant's space can be switched to the forward leaning posture to make it a luggage space. As shown in FIG. 2, when the seat back 2 is in the forward leaning position and the seat cushion 1 is in the seat back receiving position, the front end portion 2 a of the seat back 2 rests on the upper surface of the seat cushion 1. The base portion 2b of the seat back 2 enters the rear of the seat cushion 1 and the seat back 2 is placed in a state where the seat cushion 1 and the seat back 2 overlap at relatively thin portions. Overlap one.

That is, when there is an occupant, the seat cushion 1 is switched to the use position and the seat back 2 is switched to the use position, as shown by the solid line in FIG. Then, the seat can be seated. At this time, the seat cushion 1 and the seat back 2 are moved back and forth by adjusting the slide of the seat support member 13 with respect to the seat attachment body 11, so that the seat position can be adjusted back and forth. When the front and rear adjustment is performed, the height from the floor F to the seat cushion 1 decreases as the seat moves forward due to the front downward inclination of the support rail 12, and the floor moves as the seat moves rearward. The seat height can be adjusted at a stroke so that the height from F to the seat cushion 1 is increased.

When loading luggage in the passenger space, FIG.
As shown by a solid line, the seat cushion 1 is switched to the seat back receiving position, and the seat back 2 is switched to the forward leaning position. Then, the seat is in a folded state in which the seat back 2 overlaps the seat cushion 1, and the space above the seat device becomes a luggage space communicating with the luggage space behind the seat. At this time, the seat cushion 1 and the seat back 2 are moved relative to each other in the front-back direction of the seat by an amount corresponding to the base end portion 2b of the seat back 2 entering the rear of the seat cushion 1. Overlap. As a result, the seat cushion 1 and the seat back 2 overlap at relatively thin portions, and the bulk of the seat cushion 1 and the seat back 2 is reduced in spite of the overlap. This, and the fact that the seat cushion 1 is located at a lower level than when it is in the use position, the height from the seat device to the ceiling is as high as possible, and the height of the luggage space above the seat device is high.

[Another Embodiment] When the seat back 2 is interlocked with the seat cushion 1 by interlocking means such as a cable, a link mechanism, and a gear mechanism, and the seat back 2 is rotated from the use position to the forward position, the interlocking operation is performed. When the seat cushion 1 is switched from the use position to the seat back receiving position and the seat back 2 is rotated from the forward leaning position to the use position, the seat cushion 1 is moved from the seat back receiving position to the use position in conjunction with this. It may be configured to be switched. Also in this case, the seat back 2 only rotates with respect to the seat support member 13,
Since the seat cushion 1 moves back and forth with respect to the seat support member 13, the position of the seat cushion 1 is independently changed from the use position to the seat back receiving position separately from the seat back 2.

In order to make it possible to change the position between the use position of the seat cushion 1 and the seat back receiving position, the swing link 5 as in the above-described embodiment or the slide mechanism may be used. Good.

The seat device according to the present invention can be applied not only to the rear seat device but also to the front seat device. Further, the present invention can be applied to seat devices of various vehicles such as transport vehicles in addition to passenger cars.

[0033]

According to the first aspect of the present invention, when loading luggage in the occupant space, the seat cushion does not protrude into the luggage space, the length of the luggage compartment is made as long as possible, and the overlapped seat cushion and the seat are further increased. The bulk of the back is reduced as much as possible, and the height from the seat device to the ceiling is increased, so that long or tall luggage can be easily loaded. In addition, even when the seat back has a headrest, the luggage space can be easily obtained by tilting the seat back with the headrest attached. Further, even when a rear seat is configured, a space for sliding and reclining adjustment of the front seat can be easily secured, and luggage can be loaded while facilitating the adjustment.

According to the second aspect of the present invention, when seating, the seat cushion is positioned at an appropriate height level and can be comfortably seated in a comfortable posture. For that reason, when loading the luggage, the seat cushion and seat back are located at the lowest possible level, and the height from the bed device to the ceiling is as high as possible, so that even the tall luggage can be easily loaded.

According to the third aspect of the present invention, when seating, the seat cushion and the seat back have the above-described thickness difference, and the front end of the upper surface of the seat cushion is located at a higher level than the rear end. By doing so, you can sit comfortably in a comfortable posture. For that reason, when loading luggage, the bulk of the overlapping seat cushion and seat back is low, and the height from the seat device to the ceiling is as high as possible, making it possible to easily load tall luggage easily. .

According to the fourth aspect of the present invention, the seat cushion can move an appropriate stroke from the use position to the seat back receiving position so that the seat cushion and the seat back can be properly overlapped. By simplifying the mounting structure, the weight and economy can be advantageously obtained.

Further, even when the seat cushion is configured to be moved by manual operation, the seat cushion can be easily moved so as to be hard to be twisted, and the luggage space can be easily obtained.

According to the fifth aspect of the present invention, even when the seat cushion is configured to be moved by manual operation, the load is quickly and easily moved while stably supporting the seat cushion so as not to swing back and forth. Room space can be obtained quickly and easily.

According to the sixth aspect of the present invention, the seat cushion and the seat back can be adjusted back and forth to a position where the seat cushion and the seat back are easy to use, and the seat can be comfortably seated.

In addition, even when the seat cushion is supported so that its position can be freely changed by a simple mounting structure employing a swing link, the seat cushion can be easily seated at a position where the seat cushion can be easily used. When loading luggage, even if there is a member such as the front seat in front of the seat cushion, move the seat cushion to the seat back receiving position so as not to hit it, and place the seat back behind the seat cushion. The base end side is fully inserted to reduce the bulk consisting of the seat cushion and the seat back, and a high luggage space from the seat device to the ceiling is obtained, so that high loads can be easily loaded.

According to the seventh aspect of the present invention, the level can be adjusted at once by merely adjusting the front and rear of the seat cushion and the seat back, and a state in which the user can easily sit can be easily obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a seat device in a sitting state.

FIG. 2 is a side view of the seat device in a state for forming a luggage compartment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Seat back 2a Front end portion of seat back 2b Base end portion of seat back 5 Swing link 11 Seat attachment body 12 Support rail 13 Seat support member

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayuki Otani 2-1-1, Taoyuan, Ikeda-shi, Osaka Daihatsu Kogyo Co., Ltd. F-term (reference) 3B087 CB12 CB15

Claims (7)

[Claims] 1. A seat cushion is supported by a seat support member at a seat back receiving position, which has been moved forward from a use position, independently of a seat back, from a use position, and the seat back is moved forward from a use position. The seat cushion is supported by the seat support member so as to be rotatable and switchable to a forward tilted posture, and when the seat back is in the forward tilted position, a front end portion of the seat back is in a seat back receiving position. A seat device for a vehicle, which is received and supported on an upper surface side, and a base end portion of a seat back is configured to enter a rear portion of a seat cushion at a seat back receiving position. 2. The vehicle seat device according to claim 1, wherein when the seat cushion is at a seat back receiving position, the seat cushion is located at a lower level than when the seat cushion is at a use position. 3. A front end of the seat cushion having a thickness greater than a rear end of the seat cushion. When the seat cushion is in a use position, the front end of the upper surface of the seat cushion is located at a higher level than the rear end. The vehicle seat device according to claim 1, wherein a thickness of the seat back at a distal end side is smaller than a thickness at a base end side. 4. The seat cushion is supported by the seat support member via a swing link, and the seat cushion is moved between the use position and the seat back receiving position by the swing of the swing link. The vehicle seat device according to any one of claims 1 to 3, wherein the vehicle seat device is configured to change. 5. The vehicle seat device according to claim 4, wherein the swing link is connected to an intermediate portion of the seat cushion in the front-rear direction. 6. The vehicle according to claim 1, further comprising a seat attachment body fixed to the vehicle body in a state where the seat support member is slidably supported in the front-rear direction of the seat.
The vehicle seat device according to the paragraph. 7. The seat support member is slidably supported by the seat mounting body via a support rail inclined forward and downward, and is positioned at a lower level as the seat slides toward the front of the seat. The vehicle seat device according to claim 6.