JPH06219197A - Seat device for car - Google Patents

Abstract

PURPOSE:To enlarge a car room space by sufficient and simple operations without deepening the depth of a recessed part when a seat device is housed in the recessed part on a car body floor. CONSTITUTION:A seat back 2 and a seat cushion 1 are housed respectively in the front part and the rear part of a recessed part 6 formed on a car body floor 5, with their back faces upturned. The lower end of the seat back is connected to the rear end of the seat cushion in state where a seat is in service, in order for the seat back to be able to freely incline to a full-flat position. The seat cushion is supported by front legs 11 and rear legs 12. Each front leg consists of a pair of right and left link members 13. One end of each link member is rotatably connected to the central part on the side face of the seat cushion, while the other end is connected to the recessed part so that it can rotate. The rear leg consists of a horizontal part extended across the car width, and a pair of right and left vertical parts, which are bent about at right angles from both ends of the horizontal part and extended. The end part of each vertical part is rotatably connected to the rear end of the seat cushion. The seat cushion and the seat back are provided so that they can be turned upside down about a connecting point of the seat cushion and the link member of the front leg.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device mounted on an automobile, and more particularly to a seat device which can be stored when not in use.

[0002]

2. Description of the Related Art Conventionally, as a retractable seat device for a van-type vehicle, a wagon-type automobile or the like, a retractable seat device capable of accommodating the rear seat to ensure a wide luggage space when not in use is known. Various proposals have been made publicly known. For example, in Japanese Utility Model Laid-Open No. 1-81135, a lower end of a seat back is tiltably connected to a rear end of a seat cushion to a full flat state, and one side of the seat cushion is rotatably connected to a vehicle compartment side wall. Then, the seat cushion and the seat back are stored along the side wall of the passenger compartment. Also, the actual Kaihei 1-10
In 1934, a recess is formed in a vehicle body floor, a panel member covering the recess is rotatably attached to a rear edge of the recess of the vehicle body floor, and a seat cushion and a seat cushion can be folded on the back surface of the panel member. There is disclosed a seat provided with a seat back connected to the seat cushion, the seat cushion and the seat back being folded and stored in the recess, and the recess being covered with a panel member.

[0003]

However, of the above-exemplified seat devices, in the former one, the seat cushion and the seat back project from the side wall of the passenger compartment to the inside of the passenger compartment even when the seat cushion is in the retracted state. However, the luggage compartment space cannot be expanded sufficiently. Further, in the latter case, since the recess of the vehicle body floor folds and stores the seat cushion and the seat back, the depth thereof needs to be deep. For this reason, there is a problem in that the vehicle height must be increased by the depth of the recess in order to secure the ground clearance at the recess at a predetermined height.

The present invention has been made in view of the above points, and an object of the present invention is to set the depth of the recess when the seat including the seat cushion and the seat back is stored in the recess formed in the vehicle body floor. The vehicle interior space can be expanded with a sufficient and simple operation without making it deep.

[0005]

In order to achieve the above object, the present invention basically forms a recess in a vehicle body floor, and a seat back is provided at the front of the recess and a seat cushion is provided at the rear of the back. Is to be stored facing upward.

In order to realize such storage, according to the first aspect of the invention, the lower end of the seat back is tiltably connected to the rear end of the seat cushion in a seat use state to a full flat posture. The seat cushion is supported by the front legs and the rear legs. The front leg is composed of two left and right link members, and one end of each link member is rotatably connected to the center of the side surface of the seat cushion and the other end is rotatably connected to the recess. On the other hand, the rear leg is configured to have a horizontal portion extending in the vehicle width direction and a pair of right and left vertical portions that are bent and bent at substantially right angles from both ends of the horizontal portion, and the end portion of each vertical portion is the seat. It is rotatably connected to the rear end of the cushion. In addition, the seat cushion and the seat back are provided so as to be able to be inverted upside down around a connection point between the seat cushion and the link member of the front leg.

The invention according to claim 2 is dependent on the invention according to claim 1, and in addition to the constituent features thereof, when the link member of the front leg stands up from the recess to support the seat cushion, the link member stands up. The front leg locking means for locking the rear leg and the rear leg locking means for locking the rear leg in the recess when the seat is used are provided.

The invention according to claim 3 is dependent on the invention according to claim 1 or 2, and the concave portion which is a component thereof is formed on the vehicle body floor of the luggage compartment.

[0009]

With the above construction, in the invention according to claim 1,
When the seat is stored in the recessed portion of the vehicle body floor from the use state, for example, the horizontal portion of the rear leg is held and the rear leg is taken out from the recessed portion, and the seat cushion and the seat back are connected between the seat cushion and the front leg link member. Invert upside down around the connecting point. Then, when the seat cushion and the seat back are extended to a full flat state in the recess, the seat back is stored in the front of the recess with the back surface facing upward, and the seat cushion is in the rear of the recess with the back surface facing upward. Stored. that time,
Each link member of the front leg is tilted rearward of the vehicle body around the connection point with the recess and is housed between the side wall of the recess and the seat cushion. After that, fold the rear legs to the back side of the seat cushion. As a result, all the constituent members of the seat device are stored in the recess, and the vehicle compartment space is expanded widely.

According to the second aspect of the present invention, when the seat is in use, the link member of the front leg is locked by the front leg locking means so as to stand up from the recess, and the rear leg is locked in the recess by the rear leg locking means. Therefore, the front and rear legs do not wobble and the seat cushion is reliably supported.

[0011]

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

1 to 4 show a vehicle seat apparatus A according to an embodiment of the present invention. The seat apparatus A is provided as two rear seats on the left and right behind a front seat B in the passenger compartment. ing. The seat device A includes a seat cushion 1
And a seat back 2. The lower end of the seat back 2 is tiltably connected to the rear end of the seat cushion 1 via a connecting shaft 3 and the like to a full flat posture.

On the other hand, a substantially rectangular recess 6 is formed in the vehicle body floor 5 where the seat device A is installed, and when the seat device A is not used, two seats, left and right, are provided in front of the recess 6. The seat backs 2, 2 of the devices A, A are stored side by side and the back faces upward, and the seat cushions 1, 1 of the seat devices A, A are stored side by side and the back faces upward at the rear of the recess 6. It has become so. In the retracted state of the seat device A, the back surfaces of the seat cushion 1 and the seat back 2 are substantially flush with the vehicle body floor 1 behind the recess 6, and the luggage compartment behind the seat device A reaches the position of the recess 6. Expanded forward.

In the use state of the seat device A, the seat cushion 1 is supported by the front leg 11 and the rear leg 12. The front leg 11 has two link members 1 on the left and right.
One end of each link member 13 is rotatably connected to the center of the side surface of the seat cushion 1 and the other end is rotatably connected to the bottom surface of the recess 6. The rear leg 12 is formed of a rod-shaped member having a horizontal portion 12a extending in the vehicle width direction and a pair of left and right vertical portions 12b and 12b extending from both ends of the horizontal portion 12a by bending at substantially right angles,
The end portion of each vertical portion 12b has the seat cushion 1
Is rotatably connected to the rear end of the side surface of the. The connecting portion of the rear leg 12 (vertical portion 12b) to the seat cushion 1 is provided at a portion different from the connecting portion (connecting shaft 3) of the seat back 2 to the seat cushion 1 as shown in FIG.

The height dimension from the bottom surface of the recess 6 to the connecting portion between the link member 13 and the seat cushion 1 is set larger than the length from the connecting portion to the front end of the seat cushion 1, and the seat cushion 1 Also, the seat back 2 is provided so as to be able to be inverted upside down from the use state around the connecting portion.

The link member 13 is rotatably mounted around a collar portion 15a of the hinge base 15 attached to the bottom surface of the recess 6, as shown in detail in FIGS. The hinge base 15 includes a link member 13
Of the stopper portion 1 for restraining the vehicle from standing up substantially vertically and leaning forward of the vehicle body rather than supporting the seat cushion 1.
The cam surface 1 that is formed with 5b and is in contact with the tip of the hook member 24 of the front leg locking means 21 described later.
5c is formed. The cam surface 15c is an arcuate curved surface concentric with the collar portion 15a and has a cutout portion 15d at one end.
have.

The link member 13 has front leg locking means 21 for locking the link member 13 in an upright state.
Is provided. The lock means 21 has a base end pivotally attached to a support shaft 22 so as to be rotatable, and a hook member biased by a spring 23 so that the front end always contacts the cam surface 15c of the hinge base 15. 24 and the link member 13
A lock release knob 25 having a base end rotatably fitted around a collar portion 13a for inserting a connecting shaft formed at an end portion of the seat cushion 1 side, and the knob 25 and the hook member 24. A link rod 13 for connecting the link member 13
5 is tilted rearward along the bottom surface of the recess 6 as shown in FIG. 5 and is rotated around the collar portion 15a of the hinge base 15 in the rising direction to stand substantially vertically (in the state shown in FIG. 6). ), The tip of the hook member 24 is engaged with the cutout portion 15d of the cam surface 15c to lock the link member 13 in the upright state, and this lock is released by the turning operation of the knob. There is.

Further, at the rear end of the bottom surface of the recess 6, as shown in FIGS. 7 and 8, the horizontal portion 12a of the rear leg 12 is locked in the recess 6 when the seat device A is used. Means 31 are provided. The locking means 31
A fixing member 32 fixed to the bottom surface of the recess 6 and having substantially L-shaped side wall portions 32a, 32a on both left and right sides, and the fixing member 3
The two side walls 32a, 32a are provided with a support shaft 33 that is provided between horizontal end portions of the horizontal sides, and a rotating member 34 that is rotatably pivoted around the support shaft 33. The rotating member 34 is
It has a pair of left and right arm portions 34a, 34a extending toward the vertical side of each side wall portion 32a of the fixing member 32,
The upper edge of each arm portion 34a is formed in an arc shape.
A spring 35 is attached to the outer periphery of the support shaft 33 so as to urge the tip ends of the arm portions 34a of the rotating member 34 into contact with the vertical sides of the side wall portions 32a of the fixing member 32.
Each arm portion 3 of the rotating member 34 by the urging force of the spring 35.
The horizontal portion 12a of the rear leg 12 is located between the arm portion 34a of the rotating member 34 and the side wall portion 32a of the fixing member 32 in a state where the tip end of 4a is in contact with the vertical side of each side wall portion 32a of the fixing member 32. It is designed to be pinched and locked by. The rotating member 34 is formed with a knob portion 34b for gripping when releasing the lock.

Next, the operation and effect of the above embodiment will be described.

As shown in FIG. 2, right and left seat devices A and A for rear seats are stored in the recess 6 of the vehicle body floor 5. That is, the seat backs 2, 2 of the seat devices A, A are stored side by side in the front part of the recess 6 with the back surfaces facing upward, and the seat cushions 1, 2 of the seat devices A, A in the rear part of the recess 6 are stored. 1 are stored side by side and with the back surface facing upward. In addition, each seat device A
The left and right two link members 13, 13 of the front leg 11 are laid sideways between the side surface of the seat cushion 1 and the side wall surface of the recess 6 or the side surface of the seat cushion 1 of the other seat device A, and the rear leg 12 Is laid down on the back surface of the seat cushion 1. In this stored state, the back surfaces of the seat cushion 1 and the seat back 2 are substantially flush with the vehicle body floor 1 behind the recess 6, and the luggage compartment is expanded to the position of the recess 6.

From this state, for example, when using the seat apparatus A on the left side, first, after raising the rear leg 12 by holding the horizontal portion 12a of the rear leg 12 of the seat apparatus A, Lift the seat device A upward. Then,
As shown in FIG. 3, the seat cushion 1 of the seat device A
While the seat back 2 and the seat back 2 are rotated in the folding direction around the connecting shaft 3 from the full flat state, the portions on the connecting shaft 3 side of these both rise upward. In addition, each link member 1 of the front leg 11
3 rotates around the collar portion 15a of the hinge base 15 on the concave portion 6 side in the rising direction and stands substantially vertically from the concave portion 6. In this standing state, the tip of the hook member 24 of the front leg locking means 21 engages with the notch 15d of the cam surface 15c, and the link member 13 is locked in the standing state.

Subsequently, the seat cushion 1 and the seat back 2 are arranged so that the rear leg 12 is pulled down rearward about the connection point between the link member 13 and the seat cushion 1.
Is turned upside down and the horizontal portion 12a of the rear leg 12 is inserted into the rear end of the recess 6 (state shown in FIG. 4). At this time, in the rear leg locking means 31, as shown in FIG. 8, the horizontal portion 12a is the arm portion 34a of the rotating member 34.
Of the arm portion 34a of the rotating member 34 by contacting the upper edge of the rotating member 34 and rotating the rotating member 34 against the urging force of the spring 35 in a direction away from the vertical side of the side wall portion 32 of the fixing member 32. It reaches the horizontal side of the side wall portion 32a of the fixing member 32 through a space between the tip and the vertical side of the side wall portion 32a of the fixing member 32. The arm portion 34a of the rotating member 34 has its tip at the horizontal portion 1a.
When 2a passes, the tip end comes into contact with the vertical side of the side wall portion 32a of the fixing member 32 under the biasing force of the spring 35. As a result, the horizontal portion 12a of the rear leg 12 is attached to the rotating member 3
It is sandwiched between the arm portion 34a of No. 4 and the side wall portion 32a of the fixing member 32 in a retaining state, and is locked on the bottom surface of the concave portion 6.

Thereafter, the seat back 2 is rotated rearward around the connecting shaft 3 with the seat cushion 1 to a seated state. As described above, the seat device A is ready for use.

In this usable state, the seat cushion 1 is supported by the front legs 11 and the rear legs 12, and by increasing the lengths of the both legs 11 and 12, the seat cushion 1 or the hip of the seat device A is increased. The point can be easily raised and the sitting comfort can be improved. Further, the front leg 11 (link member 13) is locked in a standing state by the locking means 21, and
Since the rear leg 12 is locked on the bottom surface of the recess 6 by the locking means 31, the seat cushion 1 does not wobble during use, and the stability of the seat device A can be enhanced.

On the other hand, when the seat device A is stored in the recess 6 from the usable state, first, the seat back 2 is placed.
After inclining to the seat cushion 1 side, the knob portion 34b of the rotating member 34 of the rear leg lock means 31 is pushed forward to release the locked state of the horizontal portion 12a of the rear leg 12 by the lock means 31. The horizontal portion 12a of the seat 12 is pulled up from the inside of the recess 6 to move the seat cushion 1 and the seat back 2 to the seat cushion 1 and the link member 1 of the front leg 11.
It is inverted upside down around the connection point with 3. continue,
The lock release knob 25 of the front leg lock means 21 is rotated to operate the notch 1 between the tip of the hook member 24 and the cam surface 15c.
When the seat cushion 1 and the seat back 2 are extended to the full flat state in the recess 6 after releasing the engagement state with 5d, that is, the standing lock state of the link member 13 by the locking means 21, the seat back 2 is recessed. The back surface of the seat cushion 1 is stored in the front portion of the concave portion 6 with the back surface facing upward, and the seat cushion 1 is stored in the front portion of the recess portion with the back surface facing upward. At this time, each link member 13 of the front leg 11 tilts rearward of the vehicle body around the collar portion 15a of the hinge base 15 on the recess 6 side, and the side surface of the seat cushion 1 and the side wall surface of the recess 6 or another seat of the seat device A is seated. It is stored between the side surface of the cushion 1. After that, attach the rear leg 12 to the seat cushion 1
Fold it to the back side of. As described above, the seat device A is stored in the recess 6, and the vehicle compartment space is widened.

In this way, the seat device A can be used and stored within the area of the recess 6 formed in the vehicle body floor 5, and the degree of freedom of the passenger compartment space can be increased. In addition, the operation can be performed easily and the usability is good. Further, the depth of the concave portion 6 is sufficient if it corresponds to the thickness of the seat cushion 1 or the seat back 2, and can be made relatively shallow, so that there is no inconvenience such as an increase in vehicle height and the like, and it is implemented. It is very advantageous above.

In the above embodiment, the seat device A of the present invention is applied to the rear seat of an automobile having one front seat B and one rear seat, but the invention is not limited to this. It can be applied to a vehicle seat device.

Further, in the above embodiment, the left and right two seat devices A and A are stored in the single recess 6 formed in the vehicle body floor 5. However, the present invention has two recesses in the vehicle body floor 5. It goes without saying that the sheet devices A may be formed in parallel on the left and right sides, and one seat device A may be stored in each of the recesses.

[0029]

As described above, according to the vehicle seat apparatus of the first aspect of the invention, the seat back is provided at the front of the recess formed in the vehicle body floor when the seat is not used, and the seat cushion is provided at the back of the recess. Since the vehicle can be stored with the vehicle facing upward, the vehicle compartment space can be sufficiently expanded. Moreover, the depth of the recess is sufficient if it corresponds to the thickness of the seat cushion or the seat back, and can be made relatively shallow, so that the vehicle height is not increased. Further, the operation for using and storing the seat can be easily performed. Furthermore, by increasing the length of the front legs and the rear legs that support the seat cushion, the hip point of the seat can be easily increased, and the sitting comfort can be improved.

According to the second aspect of the present invention, when the seat is used, the front leg and the rear leg can be locked together to surely prevent the seat cushion and thus the seat device from wobbling, thereby improving the stability. You can

[Brief description of drawings]

FIG. 1 is a side view showing an arrangement state of a seat device according to an embodiment of the present invention in a vehicle compartment.

FIG. 2 is a perspective view showing a stored state of the seat device.

FIG. 3 is a perspective view showing one state in the middle of operation when the seat apparatus is changed from the stored state to the used state.

FIG. 4 is a perspective view showing a state in the middle of another operation.

FIG. 5 is a perspective view showing a laterally folded state of the link member.

FIG. 6 is a perspective view showing a standing state of a link member.

FIG. 7 is a perspective view of a rear leg locking means.

FIG. 8 is a side view of the same.

[Explanation of symbols]

 1 Seat Cushion 2 Seat Back 5 Car Body Floor 6 Recess 11 Front Leg 12 Rear Leg 12a Horizontal Part 12b Vertical Part 13 Link Member 21 Front Leg Locking Means 31 Rear Leg Locking Means

Claims (3)

[Claims] 1. A vehicle seat device in which a recess is formed in a vehicle body floor, and a seat back is stored in a front part of the recess and a seat cushion is stored in a rear part of the recess with a back surface thereof facing upward. The lower end of the seat back is tiltably connected to the rear end of the seat cushion to a full flat posture, the seat cushion is supported by front and rear legs, and the front leg includes two link members on the left and right, One end of each link member is rotatably connected to the center of the side surface of the seat cushion, and the other end is rotatably connected to the recess. The rear leg includes a horizontal portion extending in the vehicle width direction and both ends of the horizontal portion. And a pair of left and right vertical portions that are bent and extend at substantially right angles, and the end portions of the vertical portions are rotatably connected to the rear end of the seat cushion. Seat cushion and the seat back is an automobile seat apparatus characterized by being arranged to be inverted upside down around the connection point between the link member of the seat cushion and the front leg. 2. A front leg locking means for locking the link member of the front leg when the link member stands up from the recess to support the seat cushion, and a rear leg for locking the rear leg in the recess when the seat is used. The vehicle seat device according to claim 1, further comprising: 3. The seat device for an automobile according to claim 1, wherein the recess is formed on the floor of the body of the luggage compartment.