JP3133796B2 - Car seat equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device for a motor vehicle, and more particularly to a seat device for a motor vehicle having a seat arranged in three rows of a front seat, a center seat and a rear seat behind the front seat.

[0002]

2. Description of the Related Art As an automobile seat device, a seat device having three rows of seats arranged from the front to the rear, as seen in a cab-over type one-box car, is known. For example, Japanese Utility Model Application Laid-open No. 60-9913
Japanese Patent Application Laid-Open No. 9-29139 discloses a seat device in which a center seat and a rear seat are arranged behind a front seat, and the center seat and the rear seat behind the front seat are configured to be foldable or movable.

[0003]

By the way, in an automobile in which the center seat and the rear seat are arranged behind the front seat as described above, the seat back of the center seat and the seat back of the rear seat behind the front seat are respectively seated. By making it a full flat state folded on a cushion, it is possible to expand the luggage space according to the amount of cargo, etc. After opening the back door provided at the rear of the vehicle body so as to be able to open and close from the rear, the seat back of the rear seat may be folded forward, and then the seat back of the center seat disposed in front of the rear seat may be folded. In this case, since the seat cushion of the rear seat is folded from the rear side of the vehicle body, it is neglected to pay attention to the presence of a load on the seat, and the seat back of the seat is carelessly in spite of the load. There is a risk of folding.

Accordingly, the present invention provides a seat apparatus for an automobile having three rows of seats in which a center seat and a rear seat are arranged behind a front seat. In this case, an object of the present invention is to call attention to the rear seat and prevent an inadvertent folding operation of the rear seat.

[0005]

Means for Solving the Problems In order to solve the above problems, the present invention is characterized in that it is configured as follows.

That is, in a vehicle seat apparatus having a seat arranged in three rows of a front seat, a center seat and a rear seat behind the front seat, a front end of a seat cushion of the center seat is rotatably supported on a vehicle body floor. The center seat is folded and can be stored in the back of the front seat, and the front end of the seat cushion of the rear seat is rotatably supported by the vehicle body floor and rotates to the center seat position. And the rear seat cushion is centered.
When the seat cushion is turned to the seat position.
The seat back of the rear seat can be tilted forward to the front arrangement position
There is supported on the vehicle body floor, and a detection means for detecting the storage state of the center seat, center seat storage
If the seat cushion is not
And a restricting means for restricting rotation of the seat cushion and permitting rotation of the seat cushion of the rear seat only when the storage state of the center seat is detected by the detection means.

[0007]

According to the above arrangement, the center seat is located at the front.
The center seat is not stored in the back of the seat.
Rotation of the rear seat cushion located at the rear
Regulate, said only when the storage state of the front seat back of the center sheet is detected by the detection means Riyashi
With the regulating means to permit rotation of the bets of the seat cushion are provided, the seat back of the rear seat, when the seat cushion is rotated to the center seat position
The seat cushion is supported on the vehicle body floor so as to be able to lean forward to a position before the rotation of the seat cushion . Therefore, for example, in order to enlarge the luggage space, the center seat behind the front seat is stored and a rear seat is provided. When the seat cushion and the seat back are turned to a full flat state, the seat cushion of the rear seat can be turned after the center seat is stored, and only after the seat cushion is turned. The rotation of the seat back of the rear seat is allowed. Thus, when the center seat behind the front seat is folded and stored, and when the seat cushion and the seat back of the rear seat are rotated, the folding operation of the rear seat from the seat back side is restricted. As a result, attention to the rear seat is inevitably raised, and an undesired situation in which the rear seat is carelessly folded in spite of a load on the rear seat is prevented.

[0008]

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

As shown in FIG. 1, an engine room 2 is provided in front of a vehicle body of an automobile 1 according to this embodiment, and a vehicle room 3 is formed behind the engine room 2. A trunk room 4 is configured. Further, a back door 5 for opening and closing the trunk room 4 is provided at the rear of the vehicle body from the rear side. The front seat 6 extends from the front to the rear in the passenger compartment 3.
, A center seat 7 and a rear seat 8 are arranged in three rows, the front seat 6 is arranged on the side of the front door 9, and the center seat 7 is arranged on the rear door 1.
0.

As shown in FIG. 2, the front seat 6 has a seat cushion 6a and a seat back 6b.
The seat back 6b can be tilted forward on the seat cushion 6a via the reclining mechanism 6c. The center seat 7 also has a seat cushion 7a and a seat back 7b similarly to the front seat 6.
The seat back 7b can be tilted forward on the seat cushion 7a via the reclining mechanism 7c, and a pair of left and right hinges fixed to both side surfaces below the front end of the seat cushion 7a. Members 12, 1
2 (only one is shown) is connected to a pair of left and right brackets 13 and 13 (only one is shown) fixed to the vehicle body floor 11 located on both sides of the seat cushion 7a via a support shaft 14, The seat cushion 7a is rotatable around the support shaft 14 toward the front of the vehicle body, so that the center seat 7 can be stored on the rear surface of the front seat 6 in a folded state.

On the other hand, the rear seat 8 has a seat cushion 8a mounted on the vehicle body floor 11 behind the center seat, and a rear end disposed at the rear of the seat cushion 8a and having a lower end corresponding to the rear end of the seat cushion 8a. The seat frame 15 constituting the seat cushion 8a has a pair of left and right extending portions 15a, 15a (only one of which is shown). The ends of the extending portions 15a, 15a are attached to a pair of left and right brackets 16, 16 (only one is shown) fixed to the vehicle body floor 11 located on both sides of the seat cushion 8a.
The seat cushion 8a is rotatable around the support shaft 17 in the inverted state toward the front of the vehicle body. Further, the lower end of the seat back 8b is rotatably connected to a pair of left and right brackets 18, 18 fixedly mounted on the vehicle body floor 11 via a support shaft 19, so that the seat cushion 8a is turned forward. After that, the seat back 8b is rotated about the support shaft 19 to be able to lean forward to the position where the seat cushion 8a is provided.

In this embodiment, as shown in FIG. 2, the headrest 8c of the rear seat 8 is divided from the seatback 8b.
A support mechanism 20 that rotatably supports between an upper retracted position indicated by a chain line and a use position connected to the upper end of the seat back 8b is provided at the rear end of the roof portion 1a on the vehicle interior side. As shown in FIGS. 3 and 4 in an enlarged manner, the support mechanism 20 includes a rod member 21 having the headrest 8c fixed to one end thereof, and is fixed to the other end of the rod member 21 by appropriate means such as welding. A pipe-shaped base shaft portion 22 extending in the vehicle width direction, and an outer panel 2 forming the roof portion 1a
A support bracket 25 integrally attached to an inner surface of a panel member 24a fixed to the lower surface of the base member 3a and rotatably supporting both side portions of the base shaft portion 22, an outer peripheral surface of the base shaft portion 22, and the panel member 24a. And a regulating member 26 that is supported by the support bracket 25 in a state where both side surfaces are in contact with the inner side surface of the base member and restricts rotation of the base shaft portion 22. As shown in FIG. 4, an elastically deformable leaf spring 27 is fitted and fixed to the base shaft portion 22 with a part thereof protruding from the outer peripheral surface of the base shaft portion 22. On one side surface of the member 26, fitting recesses 26a and 26b into which the protruding portions of the leaf spring 27 are fitted are formed at predetermined intervals vertically. Thereby, as shown in FIG.
When the projecting portion of the leaf spring 27 is fitted in the lower fitting concave portion 26a formed in the regulating member 26, the headrest 8c is held in the upper retracted state shown by the solid line in FIG. In this state, when the rod member 21 is rotated downward around the base shaft portion 22, the projecting portion of the leaf spring 27 fits into the upper fitting concave portion 26b formed in the regulating member 26. To be headrest 8
c is held at a use position connected to the upper end of the seat back 8b as shown by a chain line in FIG. As described above, since the headrest 8c is movable between the retracted position and the use position, when the occupant does not get on the rear seat 8 side, the headrest 8c of the rear seat 8 is moved to the upper retracted position. Thereby, the rear view of the driver is improved.

As shown in FIG. 3, the inner panel 2 which forms the roof portion 1a together with the outer panel 23a.
3b and a panel member 24b joined to the panel member 24a to form a closed cross section with the panel member 24a, an opening 23 for allowing the rod member 21 to rotate.
b 'and 24b' are formed respectively.

Next, the structure of the restricting means 28 for restricting the forward rotation about the support shaft 17 of the seat cushion 8a constituting the rear seat 8, which is a characteristic part of the present embodiment, will be described. The means 28 includes a support bracket fixed to the vertical wall surface 11a of the vehicle body floor 11 between the rear of the center seat 7 and the front of the seat cushion 8a of the rear seat 8, as shown in FIGS. A swing lever 31 swingably supported by a support shaft 30 at 29, 29;
5, one of the extensions 15a is fixed and the extension 1
A notch portion 17a formed on the support shaft 17 for supporting the support lever 5a on the support bracket 16 and engaged with a locking portion 31a at the rear end of the swing lever 31 at the vehicle body; The locking portion 31a of the swing lever 17 is interposed between the spring seat 32a fixed to the lower surface of the front end 31b and the spring seat 32b fixed to the upper surface of the vehicle body floor 11, and Notch 1
Coil spring 3 for urging in a direction to separate from 7a
The locking portion 31a and the notch portion 17a form a regulating portion 33 for regulating the rotation of the seat back 8a of the rear seat 8, and the end portion 31b of the swing lever 31 has The coil spring 32 forms a detection unit 34 that detects the rotation of the seat cushion 7a of the center seat 7 toward the front of the vehicle body.

As shown in FIG. 5, when the seat cushion 7a of the center seat 7 is in the normal use position, the end 31b of the swing lever 31 is connected to the coil spring 32 by the lower surface of the seat cushion 7a. As a result, the locking portion 31a of the swing lever 31 is maintained in a state of being locked by the notch portion 17a of the support shaft 17, so that the rotation of the support shaft 17 is prevented, As a result, the rotation of the seat cushion 8a of the rear seat 8 integrated with the support shaft 17 is restricted, and the seat cushion 7a of the center seat 7 as shown by a chain line in FIG.
When the center seat 7 is turned around the support shaft 14 and the center sheet 7 is entirely stored in the back of the front seat 6, the swing lever 31 is swung about the support shaft 30 by the coil spring 32. As a result, the locking portion 31a of the swing lever 31 is disengaged from the notch portion 17a of the support shaft 17 as shown by a chain line in FIG. The seat cushion 8a can be rotated.

As shown in FIG. 2, the rear end of the seat cushion 8a of the rear seat 8 is in contact with the lower end of the seat back 8b, and the rear end of the seat cushion 8a pivots the seat back 8b. The forward rotation about the center 19 is regulated.

According to the above configuration, as shown in FIG.
When the center seat 7 is folded and rotated about the support shaft 14 to be stored in the back of the front seat 6, the center seat 7 is closed by the end 31 b of the swing lever 31 in the regulating means 28 and the coil spring 32. It will be detected by the detecting unit 34 configured. That is, in this case, the swing lever 31 urged by the coil spring 32 is rotated about the support shaft 30, so that the stored state of the center sheet 7 is detected , and Accordingly, as shown by a chain line in FIG. 6, the locking portion 31a of the swing lever 31 is detached from the notch 17a of the support shaft 17, and as a result, as shown by a chain line in FIG. The cushion 8a of the rear seat 8 can be rotated about the support shaft 17 to the normal use position of the seat cushion 7a in the center seat 7. And
When the seat cushion 8a of the rear seat 8 is rotated forward, the rotation restriction of the seat back 8b by the rear end portion of the cushion 8a is released, and the seat back 8b is connected to the support shaft 19. Seat cushion 8a in the center
Can be rotated to the normal use position.

As described above, for example, in order to enlarge the luggage space, the center seat 7 behind the front seat 6 is stored, and the seat cushion 8a and the seat back 8b of the rear seat 8 are rotated to provide a full seat. In the flat state, the seat cushion 8a of the rear seat 8 can be turned after the center seat 7 is stored, and the seat back 8b of the rear seat 8 is turned only after the seat cushion 8a is turned. Movement will be tolerated. Thereby, the center seat 7 behind the front seat 6 is folded to be in the housed state, and when the seat cushion 8a and the seat back 8b of the rear seat 8 are rotated, the rear seat 8 is moved from the seat back 8b side. Since the folding operation is restricted, attention to the rear seat 8 is inevitably raised, and an undesired inconvenience that the seat 8 is carelessly folded despite the presence of a load on the rear seat 8 or the like. The situation will be prevented beforehand.

FIG. 9 shows another embodiment of the regulating means. In this embodiment, the regulating means 28 'is provided with a seat cushion 8 of the rear seat 8' in the same manner as in the above embodiment.
a 'is fixed to the end of the extension 15a' of the seat frame 15 'and the extension 15a'
Notch 17 formed on support shaft 17 'supported by 6'
a 'and a locking piece 31 protruding upward from an opening of the vehicle body floor 11' and capable of being disengaged from the notch 17a '.
a 'and a driving means 31' such as a solenoid which is fixed to the lower surface of the vehicle body floor 11 'and engages and disengages the locking piece 31a' with the notch 17a '. Then, for example, a detecting means such as a limit for detecting the storage state of the center seat is disposed between the lower surface of the seat cushion of the center seat and the vehicle body floor, and when the storage state of the center seat is detected by this detecting means, The driving means 31 'is operated to release the locking piece 31a' from the notch 17a '. When the storage state of the center sheet is detected, the locking piece 31a' is supported. Axis 1
It will be detached from the cutout portion 17a 'of 7',
The seat cushion 8a 'of the rear seat 8' can be rotated about the support shaft 17 '. This eliminates the need for the swing lever 31 extending in the front-rear direction of the vehicle body and the coil spring 32 for urging the swing lever 31 as in the above-described embodiment, thereby simplifying the entire regulating means 28 '. In addition to this, the foot space on the rear seat 8 side can be enlarged.

[0020]

As described above, according to the present invention, the center
With the seat not stored in the back of the front seat
Is the rear seat located behind the center seat
The structure is such that the rotation of the cushion is restricted, and the rotation of the seat cushion of the rear seat is permitted only when the storage state of the center seat in the back of the front seat is detected by the detecting means. seat back is in the seat cushion when the seat cushion of the rear seat is rotated to the center seat position
Since it is supported on the vehicle body floor so as to be able to lean forward to the arrangement position before the rotation , for example, in order to enlarge the luggage space, the center seat behind the front seat is stored, and the seat cushion of the rear seat and When the seat back is turned to the full flat state, the seat cushion of the rear seat can be turned after the center seat is stored, and the seat back of the rear seat is turned only after the seat cushion is turned. This allows the center seat behind the front seat to be folded into the stored state, and when the seat cushion and the seat back of the rear seat are rotated, the seat back of the rear seat is rotated. The folding operation from the side will be regulated, and inevitably Note will be is invoked, the unfavorable situation inadvertently folding the sheet despite there is cargo and the like on the rear seat can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an automobile provided with a seat device according to the present invention.

FIG. 2 is an enlarged side view of the seat device.

FIG. 3 is an enlarged sectional view of a support mechanism for supporting a headless rear seat.

FIG. 4 is an enlarged sectional view of a main part of a headrest support mechanism.

FIG. 5 is an enlarged side view of a restricting means for restricting rotation of a seat cushion of a rear seat.

FIG. 6 is a partially enlarged side view of the regulating means.

FIG. 7 is a sectional view taken along line AA in FIG. 6;

FIG. 8 is a side view showing a folded state of the center seat and the rear seat.

FIG. 9 is an enlarged side view of a regulating unit according to another embodiment.

[Explanation of symbols]

 6 Front Seat 7 Center Seat 7a Seat Cushion 7b Seat Back 8, 8 'Rear Seat 8a, 8a' Seat Cushion 8b Seat Back 11, 11 'Body Floor 17a, 17a' Notch 28, 28 'Regulator 31 Swing Lever 31a Locking part 31a 'Locking piece 32 Coil spring 33 Restriction part 34 Detection part

Claims (1)

(57) [Claims] 1. A seat apparatus for an automobile having a front seat, a rear center seat and a rear seat arranged in three rows, wherein a front end of a seat cushion of the center seat is rotatable on a vehicle body floor. The center seat is supported by the front seat in a folded state and can be stored in the back of the front seat, and the front end of the seat cushion of the rear seat is rotatably supported by the vehicle body floor to move to the center seat position. Rotatable and the seat cushion of the rear seat is centered.
Before the seat cushion is turned
The seat back of the rear seat is supported on the vehicle body floor so as to be capable of leaning forward at the disposition position , and a detecting means for detecting the storage state of the center seat is provided.
If not, the rear seat cushion
And a restricting means for restricting rotation of the rear seat and permitting rotation of the seat cushion of the rear seat only when the storage state of the center seat is detected by the detection means. .