JPH11348621A - Installing structure of seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an installing structure of seat for a vehicle which can be rotated easily, when a seat furnished with a seat cushion is rotated to the front side of a vehicle and in the reverse direction from a normal condition. SOLUTION: The seat cushion 26 of a rear seat 14 is journalled to the stand part 20 of a floor surface panel 18 by a hinge mechanism 36. Between the stand part 20 and the side part of a frame 32, a stay damper 56 is hung. The stay damper 56 is extended the most in the vertical condition of the seat cushion 26, and even though the seat cushion 26 is rotated to either one side from the vertical condition, the stay damper 56 is contracted gradually against the fluid resistance of the inside fulid. Consequently, since the seat cushion 26 is energized toward the vertical condition wherever position the seat cushion 26 is, the worker can rotate the seat cushion easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat mounting structure for mounting a vehicle seat having a seat cushion for supporting a load from a occupant to a vehicle.
For example, the present invention relates to a vehicle seat mounting structure for attaching a rear seat of an automobile to a vehicle body.

[0002]

2. Description of the Related Art A seat cushion (particularly a rear seat) is mounted on a floor of an automobile at a front end thereof so as to be rotatable around an axis in a vehicle width direction, and a seat cushion is provided on a rear end of the seat cushion. There is a type in which a back is rotatably mounted.

[0003] In this type of seat, the seat back can be tilted forward and overlapped with the seat cushion, and the seat cushion can be rotated about 180 ° to the front of the vehicle about the axis at the front end side. By rotating the seat cushion in this way, a wide space can be secured in the vehicle interior. Further, since the bottom surface of the seat cushion is substantially horizontal upward, the bottom surface can be used as a table.

However, in this type of seat, the weight of the seat cushion is reduced when the seat cushion is rotated from the normal state to the front side of the vehicle so as to be perpendicular to the floor of the vehicle (vertical state). The seat cushion must be pivoted in such a way as to lift it, which is a burden on the operator.

[0005] Also, when rotating the seat cushion further forward from the vertical state, it is necessary to support the load of the seat cushion, which places a burden on the operator.

[0006]

SUMMARY OF THE INVENTION In view of the above, the present invention makes it possible to easily rotate a vehicle seat provided with a seat cushion from a normal state in the forward and reverse directions of the vehicle. It is an object to obtain a mounting structure for a vehicle seat that can be mounted.

[0007]

According to the first aspect of the present invention, there is provided a vehicle seat mounting structure for mounting a vehicle seat having a seat cushion for supporting a load from a occupant to a vehicle, The seat cushion is rotated from a use state in which a load from a seated person is supported to a tilted state in which the seat cushion is tilted at a predetermined angle with respect to the vehicle floor through a vertical state perpendicular to the vehicle floor. Possible, an attachment member attached to the vehicle, biasing means interposed between the seat cushion and the vehicle, and biasing the seat cushion from the use state and the tilted state toward the vertical state, It is characterized by having.

[0008] Therefore, by rotating the seat cushion, it is possible to change from the use state to the inclined state through the vertical state. In the tilted state, the seat cushion is not located in the movement trajectory from the use state to the vertical state, so that a large space can be secured in the vehicle interior.

The tilted state includes a state in which the back surface of the seat cushion is substantially parallel to the floor of the vehicle (substantially parallel state). By setting the seat cushion in a substantially parallel state as described above, the back surface of the seat cushion can be used as a table or the like.

[0010] The urging means urges the seat cushion from the use state to the vertical state. Therefore, from the use state to the vertical state, the operator can lift and rotate the seat cushion with a smaller force. The urging means also urges the seat cushion from the tilted state to the vertical state. Therefore, when the seat cushion in the vertical state is rotated to be in the inclined state, the seat cushion does not accidentally fall down by its own weight, and the operator can easily rotate.

Similarly, when the seat cushion is rotated to return from the tilted state to the use state, the operator uses the urging force of the urging means to reduce the seat force from the tilted state to the vertical state. The cushion can be lifted and pivoted. When rotating the seat cushion in the vertical state to the use state, the operator can easily rotate the seat cushion without inadvertently falling down due to its own weight.

Further, the seat back can be rotatably attached to the seat cushion. In this case,
After the seat back is moved forward and overlapped with the seat cushion, the seat cushion can be rotated integrally with the seat back, so that the seat back can be brought into a tilted state from a use state through a vertical state. Since the seat cushion is rotated integrally with the seat back, the weight of the entire seat increases, but even in this case, it can be easily rotated between the use state and the tilted state with a small force. Can be done.

According to a second aspect of the present invention, in the first aspect of the present invention, the urging means is bridged between the seat cushion and the vehicle, and a flow resistance of a fluid sealed therein. A stay damper that urges the seat cushion from the use state and the tilted state toward the vertical state and applies a predetermined resistance to the rotation of the seat cushion.

Therefore, the stay damper supports a part of the load of the seat cushion, and the seat cushion is urged from the use state and the inclined state to the vertical state. In addition, a predetermined resistance force acts on the rotation of the seat cushion due to the flow resistance of the fluid, and it is possible to more effectively prevent the seat cushion from suddenly falling down.

As described above, the urging means can be configured with a simple structure in which the stay damper is simply bridged between the seat cushion and the vehicle.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 3 to 6 show a vehicle seat mounting structure 10 (hereinafter abbreviated as "mounting structure") 10 according to an embodiment of the present invention. The illustrated rear seat 14 is shown. FIG. 2 shows a main part of the mounting structure 10 in an enlarged manner. Hereinafter, in FIGS. 1 to 7, the forward direction of the vehicle, the upward direction of the vehicle, and the width direction of the vehicle are denoted by reference numerals F, U, and W, respectively. Further, the terms “front” and “rear” simply refer to the front of the vehicle and the rear of the vehicle, respectively.

In the vehicle 12, the floor panel 18 of the vehicle 12 is inflated upward (in the cabin) at a predetermined position (a position spaced from the front seat 16 shown in FIG. 6 behind the vehicle). A protruding base portion 20 is formed. As shown in FIG. 6, the space between the front seat 16 and the base 20 is a storage space 22, and the rear seat 14 turned forward is stored in the storage space 22 as described later. .

A support plate 24 is mounted on the upper surface of the platform 20, and the rear seat 14 is supported on the support plate 24.

As shown in FIG. 1 and FIG.
4 is a seat cushion 26 placed on the support plate 24.
And a seat back 28 rotatably attached to the seat cushion 26 by a hinge mechanism 30 at the rear end side of the seat cushion 26. When the seat cushion 26 is substantially parallel to the floor panel 18 and the seat back 28 is tilted rearward at a predetermined angle, the rear seat 14 is in use as a whole. In this use state, the rear seat 14 can support a load from a seated person.

A stopper (not shown) is provided on the hinge mechanism 30 so that the seat back 28 can be locked at a desired angle with respect to the seat cushion 26. The lock by the stopper can be released by operating a lever (not shown).

As shown in FIG.
Inside, a frame 32 formed in a frame shape by a metal pipe is provided. In addition, seat cushion 2
A plate-like bottom plate 34 is attached to the bottom surface of 6.
The frame 32 and the bottom plate 34 maintain the seat cushion 26 in a fixed shape, so that the seat cushion 26 does not lose its shape even when a load from the occupant acts.

A hinge mechanism 36 is provided between the front end of the frame 32 and the front end of the base 20. The hinge mechanism 36 has a link 40 and a bracket 42 having one end pivotally supported near the upper end of the link 40. The link 40 is pivotally supported at substantially the center in the vertical direction by inserting the support shaft 38 fixed to the base 20 by the fixing plate 48.

The bracket 42 includes a pair of parallel side plates 44.
And a bottom plate 46 continuous with the side plate 44 at the lower end of the side plate 44
Thus, it is formed in a substantially U shape in a front view. The side plate 44 has a substantially right-angled triangular shape with rounded corners, and projects forward from the bottom plate 46. The upper end of the link 40 extends between the side plates 44 from the front of the bottom plate 46 and is supported by the side plates 44 by pins 50.

An insertion hole 52 is formed at the rear end of the side plate 44. The front end portion of the frame 32 is inserted into and fixed to the insertion hole 52. Therefore, the seat cushion 26 and the bracket 42 are integrally supported by the link 40 so as to be rotatable about the pin 50.

As shown in FIG.
The bottom plate 46 of the bracket 42 abuts on the limiting plate 54 extended from the fixing plate 48 in a state where the bottom plate 34 of the bracket 42 is in surface contact with the support plate 24 of the base 20. This prevents the seat cushion 26 from inadvertently rotating in the direction opposite to the arrow B (see FIG. 4) and sinking at the rear end.

The seat cushion 26 is provided with a lock mechanism (not shown).
, The seat cushion 26 is locked in this state. This lock can be released in conjunction with the operation of the lever for unlocking the hinge mechanism 30.

Further, as shown in FIG.
8 is lifted and rotated about the pin 50, and the bottom plate 46 of the bracket 42 is in a state where the seat back 28 is perpendicular to the floor panel 18 (vertical state).
Corresponds to the link 40. Thus, the rotation of the seat back 28 with respect to the link 40 is prevented. Accordingly, when the rear end side of the seat back 28 (the upper end side in FIG. 5 because the seat back 28 rises vertically) is further pushed forward from this state, the link 40, the bracket 42, and the seat cushion 26 are integrated. As a result, it rotates forward about the support shaft 38. As described above, the center of rotation is shifted from the pin 50 to the support shaft 38 during the rotation of the seat back 28, so that the members constituting the hinge mechanism 36 do not protrude from the bottom plate 34 and the support plate 24. So
Even when the bottom plate 34 and the support plate 24 are flush with each other as shown in FIG. 6, the bottom plate 34 and the support plate 24 are flattened as a whole, so that they can be easily used as a table or the like.

A stay damper 56 extends between the base 20 and the side of the frame 32. The stay damper 56 includes a cylinder 58 having a bottomed cylindrical shape.
And a piston 60 inserted into the cylinder 58 so as to be able to advance and retreat. In the cylinder 58, a fluid (a viscous fluid having a high viscosity such as oil is preferable, but a low-viscosity fluid such as water or air may be used, or a mixture of these different fluids may be used). Is sealed, and a constant resistance force acts on the relative movement of the piston 60 with respect to the cylinder 58 by the flow resistance of the fluid. Thus, the speed at which the stay damper 56 expands and contracts (the speed at which the piston 60 advances and retreats with respect to the cylinder 58) is made constant.

The stay damper 5 configured as described above
The upper end of the cylinder 58 is pivotally supported by the side of the frame 32, and the lower end of the piston 60 is pivotally supported by the base 20 and below the pins 50 and the support shaft 38. As shown in detail in FIG. 7, the seat cushion 26 rotates about the pin 50 between a use state (a state shown by a solid line) and a vertical state (a state shown by a dashed line).
The upper end of the cylinder 58 also moves along the movement trajectory L1 around the pin 50 and rotates about the support shaft 38 between the vertical state and the stored state (the state shown by the two-dot chain line). The upper end also moves along the movement trajectory L2 around the support shaft 38. For this reason, the stay damper 56 extends most in the vertical state of the seat cushion 26, and regardless of the direction in which the seat cushion 26 rotates from the vertical state, the stay damper 56 gradually increases against the flow resistance of the internal fluid. Shrink to Thus, regardless of the position of the seat cushion 26, a part of its own weight is supported by the stay damper 56, and as a result, the seat cushion 26 is urged toward the vertical state.

A predetermined resistance force acts on the rotation of the seat cushion 26 due to the flow resistance of the viscous fluid in the stay damper 56.

Next, the mounting structure 10 of the present embodiment,
The operation of the rear seat 14 mounted on the vehicle body by the mounting structure 10 will be described.

In the state shown in FIG. 3 (the use state of the rear seat 14), the bottom plate 34 of the seat cushion 26 is
And the front end of the bottom plate 46 of the bracket 42 hits the link 40 to sink the seat cushion 26 (rotation in the direction opposite to the arrow B in FIG. 4).
Has been blocked. Therefore, the load from the occupant sitting on the seat cushion can be reliably supported. In this state, the support plate 24 is locked by a lock mechanism (not shown).

The seat back 28 is inclined at a predetermined angle with respect to the seat cushion 26, and is locked by a stopper (not shown). For this reason, the load when the occupant leans on the seat back 28 can be supported, and the seat back 28 does not rotate carelessly.

The lock by the stopper (not shown) is released by the operation of a lever (not shown), and the seat back 28 is moved forward in the direction of arrow A shown in FIG. 3 to overlap the seat cushion 26 as shown in FIG. Can be. By this lever operation, the lock of the support plate 24 by the lock mechanism (not shown) is also released, and the seat cushion 26 can be rotated in the direction of arrow A.

Further, when the rear end of the seat cushion 26 is pulled up, the seat cushion 26 is
8 and forward with pin 50 as the center (arrow B direction)
To rotate. Since the seat cushion 26 is urged to the vertical state by the urging force of the stay damper 56 from the use state to the vertical state of the seat cushion 26, the worker is not provided with such a stay damper 56. As compared with the case, the seat cushion 26 can be rotated with a smaller force, and the seat cushion 26 can be set in the vertical state as shown in FIG.

When the seat cushion 26 is slightly inclined forward (in the direction of arrow C) from the vertical state, it tends to rotate further forward due to its own weight. At this time, if the stay damper 56 is not provided, the angular velocity of rotation gradually increases, so the operator supports the seat cushion 26 against this, and the seat cushion 26 and the seat back 28 It is necessary to prevent it from hitting the floor panel 18. However, in the mounting structure 10 of the present embodiment, since the seat cushion 26 is urged to the vertical state by the urging force of the stay damper 56, the operator must support the seat cushion 26 against its own weight. The load is reduced and the work becomes easier. Moreover, due to the flow resistance of the fluid in the stay damper 56,
Since the speed of the contraction of the stay damper 56 is constant, the rotational angular velocity of the seat cushion 26 is also substantially constant, and the sudden fall of the seat cushion 26 is more effectively prevented.
Does not hit the floor panel 18 by impact.

By setting the flow resistance of the fluid in the stay damper 56 to a predetermined value, even if the operator releases his / her hand from the seat cushion 26 and releases the force acting on the seat cushion 26, the seat cushion 26 is released. Can be rotated at a substantially constant small angular velocity. Thus, it is possible to prevent the seat cushion 26 and the seat back 28 from impacting on the floor panel 18.

In this manner, as shown in FIG. 6, the seat cushion 26 and the seat back 28 are
, The seat cushion 26 and the seat back 28 are retracted from the rotation locus, so that a large space can be secured in the vehicle interior.

In this state, the seat cushion 26
The bottom plate 34 and the support plate 24 of the base 20 are substantially flush with each other, so that the upper surface of the bottom plate 34 and the upper surface of the support plate 24 can be integrally used as a table or the like. At this time, the members constituting the hinge mechanism 36 are the bottom plate 34 and the support plate 24.
Since the bottom plate 34 and the support plate 24 are not flattened as a whole, they are easy to use as a table or the like as a whole.

Contrary to the above operation, the seat cushion 2
This operation can be easily performed even when the device 6 is returned from the substantially horizontal state to the use state. That is, when returning from the substantially horizontal state to the vertical state, the stay damper 56 urges the seat cushion 26 toward the vertical state, so that the operator can lift and rotate the seat cushion 26 with a smaller force. When returning from the vertical state to the use state, the urging force of the stay damper 56 reduces the load that the operator must support against the own weight of the seat cushion 26, thereby facilitating the work.

In the above description, the stay damper 56 is adopted as the biasing means, and the stay damper 5 is used.
6, the seat cushion 26 is urged from the use state and the tilted state to the vertical state. However, it is needless to say that the urging means is not limited to the stay damper 56. Anything can be used as long as it can be urged from above to a vertical state. For example, between the seat cushion 26 and the base 20, the seat cushion 26 is extended most when the seat cushion 26 is in the vertical state, the elastic energy is minimized, and the seat cushion 26 can be moved in either the use state or the storage state. An elastic body such as a spring or rubber may be stretched so that the elastic body is compressed and contracted even if it rotates. These elastic bodies and the stay damper 56 may be used in combination.

Further, the seat cushion 26 does not necessarily need to be rotated from the vertical state and stored in the storage space. Even if the seat cushion 26 is fixed in an inclined position (tilted state) during the rotation. Good. That is, even in this case,
Since the seat cushion 26 is retracted from the space above the base 20, a large space can be secured in the vehicle interior. Further, the turning operation can be easily performed by the urging means such as the stay damper 56.

The seat mounted on the vehicle body by the mounting structure of the present invention is not limited to the rear seat 14 described above, but may be a third seat or a front seat. By folding the seat cushion forward and rotating the seat cushion forward, it is possible to secure a large space in the vehicle interior.

[0044]

According to the first aspect of the present invention, there is provided a vehicle seat mounting structure for mounting a vehicle seat having a seat cushion for supporting a load from a occupant to a vehicle, wherein the seat cushion is mounted on a seat. From a use state supporting a load from a person, through a vertical state perpendicular to the vehicle floor, to a tilt state in which the vehicle is tilted at a predetermined angle with respect to the vehicle floor, to the vehicle. A mounting member to be mounted, biasing means interposed between the seat cushion and the vehicle, and biasing the seat cushion from the use state and the tilted state toward the vertical state;
Therefore, the operator can rotate the seat cushion in the forward and reverse directions of the vehicle with a smaller force.

According to a second aspect of the present invention, in the first aspect of the present invention, the urging means is stretched between the seat cushion and the vehicle, and the urging means is formed by a flow resistance of a fluid sealed therein. Since the stay cushion is a stay damper that urges the seat cushion from the use state and the tilted state toward the vertical state and applies a predetermined resistance to the rotation of the seat cushion, the urging means can be configured with a simple structure. At the same time, sudden fall of the seat cushion can be prevented more effectively.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a rear seat mounted on a vehicle by a vehicle seat mounting structure according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a vehicle seat mounting structure according to an embodiment of the present invention.

FIG. 3 is a side view showing a use state of a rear seat mounted on a vehicle by the vehicle seat mounting structure according to one embodiment of the present invention;

FIG. 4 is a side view showing a state in which a seat back is folded over a seat cushion in a rear seat mounted on a vehicle by the vehicle seat mounting structure according to one embodiment of the present invention.

FIG. 5 is a side view showing a vertical state of a rear seat mounted on the vehicle by the vehicle seat mounting structure according to one embodiment of the present invention.

FIG. 6 is a side view showing a stored state of a rear seat attached to the vehicle by the vehicle seat attachment structure according to one embodiment of the present invention.

FIG. 7 is a side view showing a movement locus of an upper end of a stay damper in the vehicle seat mounting structure according to one embodiment of the present invention.

[Description of Signs] 10 Vehicle seat mounting structure 12 Vehicle 14 Rear seat (vehicle seat) 18 Floor panel (floor surface) 26 Seat cushion 36 Hinge mechanism 56 Stay damper (biasing means)

Claims (2)

[Claims] 1. A vehicle seat mounting structure for mounting a vehicle seat having a seat cushion for supporting a load from a seated person to a vehicle, wherein the seat cushion supports a load from a seated person. An attachment member attached to the vehicle so as to be rotatable from a use state, through a vertical state perpendicular to the floor of the vehicle, to a tilted state inclined at a predetermined angle with respect to the floor of the vehicle, and the seat; Urging means interposed between the cushion and the vehicle, and urging means for urging the seat cushion from the use state and the tilted state toward the vertical state, and a mounting structure for a vehicle seat. . 2. The vehicle according to claim 1, wherein the urging means is bridged between the seat cushion and the vehicle,
A stay damper that urges the seat cushion from the use state and the tilted state toward the vertical state by the flow resistance of the fluid sealed therein and exerts a predetermined resistance force on the rotation of the seat cushion. The mounting structure for a vehicle seat according to claim 1, wherein: