JPH106831A - Seat structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively extend a cargo loading space by a method wherein even if a distance between a rear seat and a front seat is not especially long, the back rest of the rear seat and a seat cushion are connected in a flat state to the front of a cargo chamber floor. SOLUTION: A back rest frame 4 is pivotally mounted on the upper part of the side of a back rest 2 by a shaft part 7 and the lower part of the back rest frame 4 is pivotally mounted on a support member 11 by a shaft part 10. A lock mechanism 5 is provided to fix the back rest 2 at the back rest frame 4, and the rear of a seat cushion 3 is pivotrally mounted on the support member 11 by a shaft part 9. The lock mechanism 5 is released and the back rest 2 is rotated upward around the shaft part 7. The seat cushion is rotated rearward through a space between the right and left backrest frames 4 and brought into a state to be connected in a flat state of a cargo chamber floor 13. The backrest 2 is fixed at the backrest frame 4 and is caused to fall frontward around the shaft part 10 and brought into a state to be connected in a flat state to the front of the seat cushion 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed on the rear floor of a vehicle having a luggage compartment at the rear of a vehicle compartment, and is folded down when necessary so as to be substantially flat with the rear luggage compartment floor so as to expand the luggage compartment space. This is related to the structure of the seat.

[0002]

2. Description of the Related Art In a vehicle having a luggage compartment at the rear of a passenger compartment, various measures have been disclosed for expanding a luggage compartment by tilting a rear seat. For example, as disclosed in Japanese Utility Model Publication No. 40-16974, the lower end of the backrest of the rear seat is axially attached to the vehicle body, and the lower front portions of the seat cushion are axially attached to the vehicle body while facing the lower front portion of the backrest. Then, by providing a recess for engaging the upper end of the backrest in the lower front part of the seat cushion, when the luggage compartment is expanded, if the seat cushion is rotated forward by 180 degrees and the backrest is tilted to a horizontal position, The upper end of the backrest is fitted into the recess of the seat cushion so that a stable flat luggage compartment floor can be formed. Further, as another example, once the backrest is once tilted forward and then rearward with the seat cushion.
A device which is rotated by 0 degrees to expand the floor of a luggage compartment has been used conventionally.

[0003]

Among the above arrangements, the backrest and the seat cushion are tilted forward, respectively, as shown in FIG. 4, in which the distance b between the rear seat and the front seat depends on the height of the backrest and the seat. The height of the backrest is required to be equal to or more than the sum of the depths of the cushions, and in order to form a flat floor, the height of the backrest is limited to some extent by the depth of the seat cushion so as to cover the space after the rotation of the seat cushion. Even when the seat cushion is raised and only the backrest is tilted forward, there is a possibility that the movement of the front seat in the front-rear direction and the reclining operation are restricted, and the usability of the seat may be deteriorated.

The backrest, which is another example of the above, is once tilted forward and then moved backward with the seat cushion.
In the configuration in which the seat cushion and the backrest are rotated by 80 degrees, as shown in FIG. 5, a recess enough to store the height c where the seat cushion and the backrest are stacked must be formed in the luggage compartment floor behind the rear seat. A shape is required, which leads to an increase in work processes and costs.

An object of the present invention is to solve the above-mentioned conventional problems.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a seat including a backrest and a seat cushion, which is installed on a rear floor of a vehicle. By configuring so that it can pass through and rotate backward, or by configuring so that the backrest can pass through between the left and right cushion frames that rotatably support the seat cushion and rotate forward. The seat cushion is almost flat in front of the luggage compartment floor, and the backrest can be almost flat in front of the seat cushion. Without this, the luggage loading space can be effectively expanded.

Further, a seat cushion can be placed on a backrest that has been tilted forward so as to be substantially horizontal with its cushion surface facing upward to form a bench shape so that the occupant can sit forward or backward. Thus, the use form of the rear seat can be diversified and the benefit can be improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention, in which 1 is a rear seat including a backrest 2 and a seat cushion 3.

The upper end of the backrest 2 is attached to the upper ends of the left and right backrest frames 4 by shafts 7, and the backrest 2 is turned around the shafts 7 in the vertical direction with respect to the backrest frame 4. It is movable and its rotation is regulated by a lock mechanism 5 provided on the backrest frame 4. The lower end portions of the left and right backrest frames 4 are axially attached to the outside of the left and right support members 11 by a shaft portion 10,
The backrest frame 4, that is, the backrest 2 fixed to the backrest frame 4 by the lock mechanism 5, can rotate in the front-rear direction about the shaft 10. The backrest 2 fixed to the backrest frame 4 by the lock mechanism 5 is fixed to the side wall of the vehicle body at a standing position by a fixing mechanism 6 provided at an upper portion of the backrest frame 4.

The rear end of the seat cushion 3 is axially attached to the inside of the left and right support members 11 of the vehicle body by a shaft 9 so that the seat cushion 3 can rotate in the front-rear direction about the shaft 9 as a center of rotation. I have. A retractable supporting leg 8 is mounted on the front left and right end portions of the seat cushion 3. The supporting member 11 and the supporting leg 8 support the seat cushion 3 when the rear seat is used, and rotate the seat cushion 3. Sometimes the support legs 8 can be used as operating handles.

Next, the usage of the rear seat 1 will be described.

As shown by the solid line in FIG.
Frame 4 which is fixed by lock mechanism 5
Is fixed to the side wall of the vehicle body by the fixing mechanism 6 so that the backrest is in the upright state, and the seat cushion 3 is supported in the horizontal position by the support legs 8 and the support members 11 when a normal rear seat is used so that the occupant can sit forward. State.

In this state, as shown in FIG. 2A, the lock mechanism 5 is released, and the backrest 2 is rotated with respect to the backrest frame 4 about the shaft 7 to the position 2a. At this time, the backrest frame 4 is held at the upright position by the fixing mechanism 6. Backrest 2
Is rotated to the position 2a, the distance between the left and right backrest frames 4, 4 is larger than the width of the seat cushion 3, and the depth of the seat cushion 3 is adjusted to the shaft 9 at the front end of the seat cushion 3. By setting the rotation trajectory so as not to interfere with the backrest located at the position 2a, the seat cushion 3 is moved through the space between the backrest frames 4 and 4 around the shaft 9 to the position of the rear 3a. The support member 11 can be stored horizontally on the rear floor 12 at the rear of the support member 11 in an inverted state in which the back plate 3b is turned up. The height of the luggage compartment floor 13 with respect to the rear floor 12 is substantially the same as the thickness of the seat cushion 3, and the seat cushion 3 stored horizontally on the rear floor 12 is substantially flat with the luggage compartment floor 13.

After the rear rotation of the seat cushion 3 is completed, the backrest 2 is returned to the original standing position and fixed to the backrest frame 4 by the lock mechanism 5 as shown in FIG. ), The fixing mechanism 6 is released and rotated forward about the shaft portion 10, so that the backrest 2 is horizontally stored on the rear floor 12 in an inverted state in which the back plate 2b is up, The seat cushion 3 is substantially flat in front of the seat cushion 3 in the retracted state. At this time, the support member 1
By configuring the backrest frame 4 on the outside and the backrest 2 on the inside with respect to 1, the gap generated in the continuous portion between the backrest 2 and the seat cushion 3 can be minimized.

In this manner, the back plate 2b of the backrest 2
The back plate 3b of the seat cushion 3 is connected to the front of the luggage compartment floor 13 almost flatly, so that the luggage compartment space can be effectively expanded.

From this state, the back plate 2b of the backrest 2
When the seat cushion 3 is rotated forward around the shaft portion 9 and held in a horizontal position by the support legs 8 and the support member 11 so that the back plate 3b of the seat cushion 3 overlaps with the back plate 3b, FIG.
A bench state as shown in (D) is obtained, and the seat can be seated forward or backward.

In the first embodiment, an example is shown in which the backrest 2 is pivotally mounted on the support member 11 via the backrest frame 4 as shown in FIG. 3, but as shown in FIG. 2 may be configured such that the lower end thereof is pivotally attached to the support member 11 so as to be able to be turned upside down, and the seat cushion 3 is pivotally attached to the support member 11 via the cushion frame 4 '. This is the second embodiment.

That is, in FIG. 3, the front end of the side surface of the seat cushion 3 is axially attached to the front ends of the left and right cushion frames 4 'at the shaft portions 7'. It is rotatable about the portion 7 ', and the rotation is locked by a lock mechanism 5' provided on the cushion frame 4 '. Since the rear end of the cushion frame 4 'is axially attached to the outside of the support member 11 at the shaft 9, the seat cushion 3 is locked to the cushion frame 4' by the lock mechanism 5 '. 9 can be rotated in the front-rear direction.

The backrest 2 has a supporting member 1 at its lower end.
1 is fixed to the vehicle body side wall by a fixing mechanism 6 so that the backrest 2 can be turned upside down.
Are held in the standing state shown by the solid line.

During normal use of the rear seat 1, the seat cushion 3 locked to the cushion frame 4 'by the lock mechanism 5' is applied to the support legs 8 and the support members 11 as in the first embodiment. The backrest 2 is fixed to a side wall of the vehicle body by a fixing mechanism 6 and held in an upright state.

In order to form the front extension of the luggage compartment floor 13 from the normal use state of the rear seat 1, first, the lock mechanism 5 'is released and the seat cushion 3 is rotated around the shaft 7' with respect to the cushion frame 4 '. Rotate to the upright position 3c.

Next, the fixing mechanism 6 is released, and the backrest 2 is tilted forward about the shaft 10. In this case, the distance between the left and right cushion frames 4 ′, 4 ′ is larger than the width of the backrest 2, and the shaft 1 at the tip of the backrest 2.
Seat cushion 3 whose 0 rotation trajectory is at position 3c
By setting the height dimension of the backrest 2 so as not to interfere with the backrest, the backrest 2 rotates to the front horizontal position through the space created between the left and right cushion frames 4 ', 4' It is stored horizontally on the rear floor 12 with the plate 2b turned upside down.

After the forward rotation of the backrest 2 is completed, the seat cushion 3 is returned to the original horizontal position, fixed to the cushion frame 4 'by the lock mechanism 5', and the support leg 8 is used as a handle instead of the handle. 3a behind 9
When the seat cushion 3 is turned up to the position, the back plate 3b is turned upside down and is horizontally stored on the rear floor 12 behind the support member 11 in an inverted state. The seat cushion 3
The back plate 2b of the backrest 2 is arranged substantially flat in front of the back plate 3b. At this time, the cushion frame 4 ′ is positioned outside and the seat cushion 3 is positioned inside with respect to the support member 11, thereby minimizing the gap of the continuous portion between the backrest 2 and the seat cushion 3. It becomes possible.

After the backrest 2 has been rotated forward, the seat cushion 3 is returned to the original horizontal use position and locked to the cushion frame 4 'by the lock mechanism 5'.
When the support leg 8 and the support member 11 maintain the horizontal use position, the bench is in the same state as in the case of FIG. 2D, and it is possible to sit forward and backward.

[0026]

As described above, according to the present invention, in a rear seat installed on a rear floor of a vehicle having a luggage compartment at a rear portion of a passenger compartment, a backrest is rotated forward so as to be in a substantially horizontal storage state. In addition to the seat cushion, the seat cushion relatively passes through the backrest and becomes almost horizontally stored at the rear of the rear seat, the seat cushion extends almost flat in front of the rear luggage compartment floor, and the backrest is in front of the seat cushion. Are arranged in a substantially flat state, the space for loading the cargo can be effectively expanded without particularly increasing the distance between the rear seat and the front seat in front of the rear seat.

Also, a seat cushion can be placed on a backrest that has been tilted forward, with the cushion surface facing up, in a bench state, so that the occupant can sit forward or backward. Diversification and benefits.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is a side view showing a normal use state of a rear seat.

2 (A), 2 (B) and 2 (C) are side views for sequentially explaining a storage operation procedure of the rear seat shown in FIG. 1, and FIG. 2 (D) shows a case where the rear seat shown in FIG. 1 is used in a bench state. It is a side view.

FIG. 3 shows a second embodiment of the present invention, and is a side view showing a normal use state of a rear seat.

FIG. 4 is a side view showing an example of a conventional rear seat.

FIG. 5 is a side view showing another example of a conventional rear seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear seat 2 Backrest 2b Backplate 3 Seat cushion 3b Backplate 4 Backrest frame 4 'Cushion frame 5,5' Lock mechanism 6 Fixing mechanism 7,7 'Shaft 8 Support leg 9,10 Shaft 11 Support member 12 Rear floor 13 Luggage room floor

Claims (2)

[Claims] 1. A seat, comprising a backrest and a seat cushion, installed on a rear floor of a vehicle, wherein left and right backrest frames are pivotally mounted on upper portions of both side surfaces of the backrest, respectively. A lower portion of the rest frame is pivotally mounted on a support member of the vehicle body, and a lock mechanism for fixing the backrest frame and the backrest is provided. The backrest is fixed to the backrest frame when the backrest is fixed to the backrest frame. The backrest can be pivoted in the front-rear direction around the shaft attachment part to the support member integrally with the frame, and when the fixing by the lock mechanism is released, the backrest rotates up and down around the shaft attachment part with the backrest frame The rear of both sides of the seat cushion is rotatably mounted on the support member of the vehicle body, and the backrest is A seat structure for a vehicle, wherein a seat cushion can be rotated rearward through a space between left and right backrest frames generated when the seat cushion is rotated upward with respect to a backrest frame. 2. A seat, comprising a backrest and a seat cushion, installed on a rear floor of a vehicle, wherein left and right cushion frames are rotatably mounted on front portions of both side surfaces of the seat cushion, respectively. The rear portion of the frame is pivotally attached to a support member of the vehicle body, and a lock mechanism for fixing the cushion frame and the seat cushion is provided. When the seat cushion is fixed to the cushion frame, the seat cushion is integrally formed with the cushion frame. The seat cushion can be rotated in the front-rear direction around the shaft attachment portion to the support member, and when the fixing by the lock mechanism is released, the seat cushion can be turned up and down around the shaft attachment portion to the cushion frame. The lower part of both sides of the rest is pivotally attached to the support member of the A seat structure for a vehicle, wherein the backrest can be rotated forward through a space between the left and right cushion frames generated when the cushion rotates upward with respect to the cushion frame.