JP2002219983A - Seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate attitude changing operation for a seat back and load rest and enhance the operability of the operation in a seat device for a vehicle equipped with a load rest on the rear of a seat back. SOLUTION: The seat device for the vehicle is structured so that the seat back 3 installed at the forefront of a load chamber space 10 is arranged capable of being fixed in the rising attitude by a seat lock means X and the load rest 7 is installed on the rear 3a of the seat back 3, wherein between the lock means X and the load rest 7, a working force transmitting means Y is installed to transmit the working force used to change the attitude of the load rest 7 from the accommodatled to service attitude for disengaging the fixed condition of the seat back 3 by the lock means X. Accordingly a single manipulation can simultaneously generate the disengagement of the lock means X and attitude change of the load rest 7, to lead to enhancement of the operating effectiveness to a great extent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device, and more particularly, to an interlocking structure of a seat lock means for fixing or releasing a seat back to a vehicle body and a load rest provided on a back surface of the seat back. It is about.

[0002]

2. Description of the Related Art In a vehicle in which a rear portion of a rear seat provided near a rear portion of a vehicle compartment has a luggage space, the load is usually lowered by folding the seat back of the rear seat forward on a seat cushion. Although the room space can be expanded, as described above, in a state where the seat back is moved forward and the luggage space is expanded, the back of the seat located forward of the rear seat, for example, a two-row seat In a vehicle with a structure, the back of the driver's seat and the passenger seat, and in a vehicle with a three-row seat structure, the back of the middle seat faces the front end of the luggage compartment space. When luggage loaded in the cabin space is loaded, for example, when the vehicle is running, sudden braking or the like, the luggage moves to the front of the luggage room space. , Also that this is safe running of the vehicle collides with the back of such driver's seat is inhibited. Therefore, in order to prevent such a situation from occurring, conventionally, the rear side of the seat back (that is, a portion that becomes the floor surface of the enlarged portion when the seat back is moved forward to expand the luggage space). A frame-shaped or planar load rest is folded down along the back of the seat back, and the "posture when retracted" and the "posture when used" standing up from the back of the seat back.
The position can be changed between the positions, and the load rest is set to the "use position" to receive the load, thereby preventing the load from further moving forward.

[0003] In addition, the rear seat can be tilted between a "frontward posture" and a "standing position" in order to increase the luggage space as described above. Seat lock means are provided on both sides in the width direction of the seat back so as to enable fixing and release in the "posture".

[0004]

However, in the conventional vehicle seat device, the operation of changing the position of the seat back of the rear seat and the operation of changing the position of the load rest are independent and independent operations. When the back is moved forward to expand the luggage space and create a posture in which the load rest can prevent the luggage from moving forward, it is necessary to perform both of these operations separately, which is an improvement in terms of operability. There was room to do it.

Accordingly, the present invention aims to improve the operability of a vehicle seat device having a load rest on the seat back side of a rear seat by simplifying the operation of changing the position of the seat back and the load rest. It was made for the main purpose.

[0006]

Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.

In the first invention of the present application, the luggage space 10
The seat back 3, which is arranged at the front end of the seat back 3 so as to be tiltable between a “forward posture” and a “standing posture”, can be fixed to the vehicle body by the seat lock means X in the “standing posture”. For the vehicle, a load rest 7 is mounted on the back surface 3a of the seat back 3 so that the posture can be changed between a "retracted posture" lying down along the back surface 3a and a "use posture" standing up from the back surface 3a. In the seat device, between the seat lock means X and the load rest 7, an operating force accompanying a posture change operation of the load rest 7 from the “stowed posture” to the “use posture” is applied to the seat lock means X. And an operating force transmitting means Y for releasing the fixed state of the seat back 3 by the seat locking means X.

According to a second aspect of the present invention, in the vehicle seat device according to the first aspect, the operating force transmitting means Y can be interlocked with the load rest 7 and the seat locking means X in a disconnected state. It is characterized by having been constituted.

[0009]

According to the present invention, the following effects can be obtained by adopting such a configuration.

According to the vehicle seat device according to the first invention of the present application, the seat back 3 is disposed at the front end of the luggage compartment space 10 so as to be tiltable between a “forward leaning posture” and a “standing posture”. Can be fixed to the vehicle body by the seat lock means X in the "standing position",
A vehicle in which a load rest 7 is mounted on the back surface 3a of the seat back 3 so as to be able to change its posture between a "retracted position" lying down along the back surface 3a and a "use position" standing upright from the back surface 3a. Between the seat lock means X and the load rest 7, the operating force associated with the operation of changing the position of the load rest 7 from the "stowed state" to the "use state" is applied to the seat lock means. X, the operating force transmitting means Y for releasing the fixed state of the seat back 3 by the seat lock means X, so that the fixing operation of the seat lock means X and the posture changing operation of the load rest 7 are performed. Can be performed simultaneously with a single operation, so that, for example, the operation is simplified and the operability is significantly improved as compared with the conventional structure in which these two operations are performed separately.

According to the vehicle seat device of the second aspect of the present invention, the following specific effects can be obtained in addition to the effects described above. That is, in the present invention, the operating force transmitting means Y is configured to be able to interlock with the load rest 7 and the seat lock means X in a non-coupled state. The seat back 3 can be fixed and held in the "standing position" by the seat lock means X in any state of the "posture at the time of storage". It is also possible to raise the seat back 3 to the "standing posture" side and fix it in the "standing posture" from the state in which the "rest posture" is set and the load rest 7 is set to the "posture when using".

Therefore, in the vehicle seat device according to the present invention, since the posture of the seat back 3 can be changed without concern for the posture of the load rest 7, the operability in use is improved, and In addition, safety in use is ensured. That is, for example, when a configuration is employed in which the load rest 7 and the seat lock means X are directly connected by the operating force transmitting means Y, the "standing position" of the seat back 3 is determined due to the interlocking relationship between the two. Can be fixed only when the load rest 7 is set to the "posture when retracted", and the load rest 7 is set to the "posture when used".
In the case of setting the seat back 3, the seat back 3 cannot be fixed even if the seat back 3 is set to the “standing posture”. When the seat back 3 is set to the "standing position" while the "use posture" is set, and the occupant sits on the seat back 3, the seat back 3 is inadvertently tilted forward when the vehicle suddenly stops. Although it is expected that this will have an unfavorable effect on the occupant's safety, such a concern cannot occur in the seat device of the present invention, and the safety in use is improved accordingly.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on preferred embodiments.

FIG. 1 shows a seat device in a van type vehicle as an embodiment of a vehicle seat device according to the present invention. In FIG. 1, reference numeral Z denotes a vehicle body.
In the vehicle body Z, the driver's seat 4 and the passenger's seat 5 are provided at the front of the vehicle compartment space Za, and the rear part of the driver's seat 4 and the passenger's seat 5 are covered by the present invention. While arranging rear seats 1 described later,
A rear portion of the vehicle compartment space Za located on the rear side of the rear seat 1 is a luggage compartment space 10 that opens at the rear end of the vehicle body and is opened and closed by a rear door (not shown).

The rear seat 1 is connected to a seat cushion 2 fixed to the floor of the vehicle body and a rear end of the seat cushion 2 via a pair of left and right hinge mechanisms 6, 6 so as to be tiltable in the front-rear direction. And a back 3. The seat back 3 stands up from the rear end of the seat cushion 2 and supports the back of an occupant sitting on the seat cushion 2 as shown by a chain line in FIG. As shown by a solid line, the posture is selectively set between a "forward leaning posture" in which the seat cushion 2 is folded forward on the upper side of the seat cushion 2.

The fixing and release of the seat back 3 in the "standing position" are performed by seat lock means X, X, which will be described later, which are respectively disposed at the left and right ends of the seat back 3. In addition, strikers 9, 9 which can be hooked on the seat lock means X are provided on inner surfaces on both left and right sides of the cabin space Za of the vehicle body Z.

In the "standing position", the seat back 3 naturally exhibits its original function as a "backrest" for supporting the back portion of the occupant sitting on the seat cushion 2. , Besides that, it is arranged so as to define the forefront of the cargo space 10,
It also functions as a load rest that regulates the forward movement of the luggage loaded in the luggage compartment space 10.

On the other hand, in a state where the seat back 3 is set in the "forward posture", the back surface 3a of the seat back 3 functions as a part of the floor of the luggage space 10, and The space of the luggage space 10 is enlarged by an area substantially corresponding to the area of the back surface 3a of the bag 3.
However, in the "forward leaning posture", although the luggage space 10 is enlarged, the seat back 3 no longer has a function as a load rest and is located at the front end of the enlarged luggage space 10. Denotes the driver seat 4 and the passenger seat 5. For this reason, the seat back 3 is set to the “forward leaning position” and the luggage space 10 is set.
In order to restrict the forward movement of the luggage loaded in the luggage compartment space 10 in a state where the seat back 3 is enlarged, a load rest 7 described later is provided on the back surface 3a side of the seat back 3 and the seat back 3 is tilted forward. When the load rest 7 is set to the "posture", the load rest 7 is shown by a solid line in FIG.
And the load rest 7 regulates the forward movement of the luggage on the luggage space 10 side.

The load rest 7 has a frame shape in which a pipe body is bent in a U-shape, and the load rest 7 stands upright from the back surface 3a of the seat back 3 as shown by a solid line in FIG. The posture can be changed between a "posture at the time of use" and a "posture at the time of storage" which falls down along the back surface 3a of the seat back 3 as shown by a chain line in FIG.

Here, the object of the present invention is to improve the operability by linking the operation of the seat lock means X and the operation of the load rest 7 as described above. In order to achieve such an object, a specific configuration as described below is provided.

FIGS. 2 and 3 show the frame structure at the upper right end of the seat back 3, the seat lock means X and the load rest 7 attached thereto, and a later-described operation for interlocking both. Power transmission means Y is shown.

The seat back 3 covers a substantially entire area thereof and forms a substantially rectangular plate-shaped plate frame 11 which forms a back side of the seat back 3. The plate frame 11 is disposed inside the plate frame 11 in the plane direction. And a pipe frame 12 supporting the seat cushion 2 on the seat cushion 2 side, and the frame structure portion and a pad material (not shown) disposed on the front side thereof are integrally formed by a skin (not shown). It is composed by encapsulation. The seat lock means X and the actuating force transmitting means Y are respectively disposed on the left and right side portions 3b and 3c of the seat back 3 configured as described above, and extend over the both side portions 3b and 3c. A load rest 7 is attached.

Hereinafter, a specific structure of the seat lock means X and the load rest 7 and an operating force transmitting means Y for interlocking the two will be described as an example which is disposed at the upper right end of the seat back 3. Each of these will be described with reference to FIGS.

The upper corner 11 of the plate frame 11
As shown in FIGS. 2 and 3, a notch 11b is provided at the side edge thereof, and the notch 11b and the corresponding upper corner 1 of the pipe frame 12 are provided.
The set plate 13 described below is mounted between the set plate 13 and the set plate 2a.

The set plate 13 serves as a mounting base for the seat lock means X and the operating force transmitting means Y. One side of the set plate 13 is fixed to the pipe frame 12 and the set plate 13 extends along the plate frame 11. And a pair of bases 13a and 13b extending near the side edges thereof, and a flange 13c which is continuous with the side edges of the bases 13a and 13b and rises in a direction substantially orthogonal to the bases. It is composed of bent plate material. An opening 20 extending from the end of each of the bases 13a, 13b to the flange 13c side is provided between the bases 13a, 13b of the set plate 13, and the opening 20 is provided.
A receiving groove 19 is provided at a position closer to the lower end of the seat back. The receiving groove 19 allows the striker 9 provided on the vehicle body side to enter when the seat back 3 is set in the “standing posture”, and the striker 9 is hooked to a lock lever 23 to be described later at the top. The second base portion 13b is provided for opening the second base portion 13b side in cooperation with the portion 28 for holding.
A substantially wedge-shaped groove that cuts the flange portion 13c from b toward the upper end side.

On the other hand, a lock lever 23, a first swing lever 21, and a second swing lever 22 described below are attached to the flange portion 13c of the set plate 13.

The lock lever 23 constitutes "seat lock means X" in the claims, and is pivotally mounted on a fulcrum pin 32 provided at a position near the receiving groove 19 of the set plate 13. The return spring 27 is urged to always rotate in the direction of the arrow a by the spring force of the return spring 27. The lock lever 23 has a hook portion 28 at one end thereof and a curved cam surface 29 at the outer peripheral edge of the hook portion 28. The lock lever 23 is rotated in the direction of arrow a by the return spring 27 ( FIG.
In the position (shown by a solid line in FIG. 4), the hook portion 28 can be hooked on the striker 9 (hereinafter, the turning position of the lock lever 23 at this time is referred to as a "locking position"), and is shown in FIG. As described above, the return spring 27
In the state where the hook 28 is turned in the direction of the arrow b against the urging force of the above, the hook portion 28 is located above the movement trajectory of the striker 9 and the hooked state with the striker 9 is released (hereinafter, referred to as "the striker 9"). The rotation position of the lock lever 23 at this time is referred to as a “lock release position”.

The lock lever 23 is operated from the "forward leaning position" side to the "standing position" side of the seat back 3 in a state where the lock lever 23 is located at the "locking position". Accordingly, the striker 9 relatively moves to the receiving groove 19 side, and the striker 9
Is engaged with the cam surface 29 of the lock lever 23, the cam portion is rotated in the direction of arrow b by the cam action so that the hook portion 28 is engaged with the striker 9. Further, an engagement pin 33 is attached to the other end of the lock lever 23. The engaging pin 33 projects through the guide groove 34 provided in the flange portion 13c of the set plate 13 to the rear surface side of the flange portion 13c, and engages with the guide groove 35 of the second swing lever 22 described below. ing.

The range of rotation of the lock lever 23 in the directions of arrows ab is determined by the length of the guide groove 34 on the set plate 13 side through which the engagement pin 33 passes. The limit positions of the rotation of the reference numeral 23 in the directions of the arrows a and b are defined by the engagement pins 33 being engaged with both ends of the guide groove 34, respectively.

The first rocking lever 21 and the second rocking lever 22 together with the later-described engaging element 17 on the side of the load rest 7 constitute an "operating force transmitting means Y" in the claims. Both are arranged on the back side of the flange portion 13c of the set plate 13 and their base ends are pivotally supported by fulcrum pins 31, respectively. Accordingly, the first swing lever 21 and the second swing lever 22 are relatively rotatable about the fulcrum pin 31 in the directions of arrows cd, and the first swing lever 21 and the second swing lever 22 are located between the swing levers 21 and 22. Are always rotated in the approaching direction (that is, the first swinging lever 21 is rotated in the direction of arrow d and the second swinging lever 22 is rotated in the direction of arrow c) by the tension spring 26 interposed therebetween. Being energized. The spring force of the tension spring 26 is set sufficiently smaller than the spring force of the return spring 27.

With the above configuration, the first swing lever 2
When a force is applied to the first swing lever 21 in the direction of rotating the first swing lever 21 in the direction of arrow d, the first and second swing levers 22 are integrally formed while maintaining the closest approach. Arrow d
Pivoted in the direction. On the other hand, when a force is applied to the first swing lever 21 in a direction to rotate the first swing lever 21 in the direction of arrow c, the rotation of the second swing lever 22 is (In other words, by the spring force of the return spring 27), the tension spring 26 extends, and the first swing lever 21 is separated from the second swing lever 22. In this direction.

The most approaching state of the first swing lever 21 and the second swing lever 22 (ie, the limit position in the approach direction).
Is defined by the fact that the engaging portion 25 provided on the second swing lever 22 contacts the side end surface 21 a of the first swing lever 21.

Further, the first swinging lever 21 has an end portion as an engaging portion 24 and moves the engaging portion 24 toward the back side of the set plate 13 (ie, the back side of the plate frame 11). Projecting. The engaging portion 24 is configured such that an engaging element 17 described later on the side of the load rest 7 can engage with the engaging portion 24 in the rotating operation direction (arrow ef direction). Further, the second swing lever 2
2 is provided with a guide groove 35 at the tip thereof.
An engagement pin 33 attached to the lock lever 23 is engaged with the guide groove 35.

Here, the lock lever 23 and the first swinging lever in the case where the first swinging lever 21 is in a free state (a state in which no operating force is received from the engagement element 17 side of the load rest 7). The interlocking relationship between the lever 21 and the second swing lever 22 will now be described. That is, the lock lever 23 is set at the “locked position” by the urging force of the return spring 27. Also, the first swing lever 21 and the second
The swinging lever 22 is integrated in the closest approach state by receiving the urging force of the tension spring 26 and its posture is maintained, but the second swinging lever 22 is connected to the swinging lever 22 through the engaging pin 33. Since the lock lever 23 is engaged with the lock lever 23,
Is set at a predetermined turning position corresponding to the turning position.

On the other hand, a fixed bracket 14 is fixed to the back surface of the set plate 13. A movable bracket 15 is connected to the fixed bracket 14 via a pivot 16 so as to be relatively rotatable. Further, the end 7a of the load rest 7 is fixed to the movable bracket 15.

The load rest 7 is integrated with the movable bracket 15 by an arrow e around the pivot 16.
By rotating in the −f direction, as shown in FIG. 3, the “retracted posture” that has fallen down along the plate frame 11,
As shown in FIG. 5, the posture can be changed between a "posture in use" extending from the plate frame 11 in a substantially orthogonal direction. Then, the positioning of the load rest 7 in the “stowed posture” is performed by the load rest 7 abutting against the stopper 18 on the fixed bracket 14 side, as shown in FIG. In addition, the positioning of the load rest 7 in the “posture in use” is performed by bringing the end face 15 a of the movable bracket 15 into contact with the front end 14 a of the fixed bracket 14 as shown in FIG. 5.

Further, the movable side bracket 15 includes
An engagement element 17 is provided. As described above, the engaging element 17 constitutes the “operating force transmitting means Y” in the claims together with the first swing lever 21 and the second swing lever 22, and the load rest 7 When the posture is changed from the "posture at the time of storage" to the "posture at the time of use", the robot rotates in the direction of arrow e with this posture change operation,
The first swing lever 21 is engaged with the engagement portion 24 and is rotated in the direction of arrow d.

The engaging element 17 engages with the engaging portion 24 of the first swing lever 21 even when the load rest 7 is changed from the "use posture" to the "storage posture". First
The swing lever 21 is rotated in the direction of arrow c. As will be described later, the rotation of the first swing lever 21 in the direction of arrow c is absorbed by the extension of the tension spring 26, and the second swing lever 21 is rotated. The configuration is such that the lever 22 cannot be rotated in the direction of arrow c.

Subsequently, the operation of the seat back 3 is changed from the "standing position" shown by the dashed line in FIG. 1 to the "forward tilting position" shown by the solid line, and further, until the seat back 3 is returned to the "standing position". This will be described together with a posture changing operation between the “resting position” and the “posting position” of the load rest 7.

(A) State in "Standing Position" As shown in FIG. 1, the seat back 3 is in the "standing position".
When the posture is set to
Is set to the “posture when retracted”. In this state, the relative relationships among the load rest 7, the first swing lever 21, the second swing lever 22, and the lock lever 23 are as shown in FIG.

That is, the load rest 7 is set to the "posture when retracted", so that the engaging element 17 which is rotated integrally with the load rest 7 is connected to the first swing lever 21.
And is maintained in a non-engagement state with the engagement portion 24.

On the other hand, the lock lever 23 is set to the "locking position", and its hook portion 28 is locked to the striker 9 engaged in the receiving groove 19 on the set plate 13 side. The seat back 3 is in the “standing position”
The posture is held.

In this case, the first rocking lever 21 and the second rocking lever 22 maintain the closest state by the spring force of the tension spring 26 and engage with the second rocking lever 22. The lock portion 23 is set at a rotation position corresponding to the rotation position of the lock lever 23, and the engagement portion 24 provided on the first swing lever 21 is connected to the engagement element 17.
Is located below.

(B) Posture change operation from "standing posture" to "forward leaning posture" The seat back 3 is moved forward from the "standing posture" to set the posture to the "forward leaning posture", and the road is loaded. When the posture of the rest 7 is changed from the “posture in storage” to the “posture in use”, the lock lever 23 is moved from the “locked position” to the “unlocked position” in conjunction with the operation of the load rest 7. And the locked state of the seat back 3 on the vehicle body side by the lock lever 23 is released. This interlocking operation is the greatest feature of the present invention.

That is, first, in a state where the seat back 3 is set in the "standing position", the load rest 7 is moved from the "retracted position" to the "use position" as shown in FIG. To rotate. Then, with the rotation of the load rest 7, the engaging element 17 rotates in the direction of arrow e, and the engaging element 17 engages with the engaging portion 24 of the first swing lever 21 from above. Then, it is pushed down and turned in the direction of arrow d. At this time, the first swing lever 21 and the second swing lever 22 are connected to the second swing lever 22.
Is engaged with the lower surface side of the first swing lever 21 to further restrict mutual approach, so that it is integrally rotated in the direction of arrow d while maintaining the closest approach. You. Therefore, the second swing lever 2 can be moved through the engagement pin 33.
The lock lever 23 engaged with the second lever 2 receives the operating force of the second swinging lever 22 and rotates in the direction of the arrow b to switch from the "locked position" to the "unlocked position". . FIG. 4 shows a state in which the switching of the lock lever 23 is completed.

Subsequently, by pushing the seat back 3 forward from this state, the striker 9 is completely separated from the receiving groove 19 and the seat back 3 is moved from the "standing position" to the "forward tilting position". Posture "side,
Eventually, it is set to the “forward posture”.

At the time of the state shown in FIG. 4, the load rest 7 is in a state immediately before reaching the "use posture". Is set, the engagement state between the engagement element 17 and the engagement portion 24 is released. Therefore, as shown in FIG. 5, the lock lever 23 loses its operating force from the second swing lever 22 that has restricted its rotation to the "locking position" side, so that the lock lever 23 immediately disappears. The posture is returned to the “hanging position” by the spring force of the return spring 27.

As described above, the setting of the posture of the seat back 3 to the “forward posture” and the setting of the position of the load rest 7 to the “use posture” are both realized. As described above, since the operation of changing the posture of the two members, the seat back 3 and the load rest 7, is realized by only one rotation operation of the load rest 7, for example, the posture of the seat back 3 is different from the conventional one. The operability is remarkably improved as compared with the case where the changing operation and the posture changing operation of the load rest 7 need to be performed separately.

(C) Posture change operation from "forward leaning posture" to "standing posture" In the state where the seat back 3 is set in the "forward leaning posture", as shown in FIG. 7 is set to 9 “posture in use”. In this state, the engagement element 17 on the load rest 7 side is located below the engagement portion 24 of the first swing lever 21, and the rotation of the first swing lever 21 is Engagement element 17
Is not regulated at all.

Therefore, when the posture of the seat back 3 is changed from the "forward leaning posture" to the "standing posture",
Regardless of whether the load rest 7 is in the state where the posture is set to the “posture in use” or the posture after the posture is changed from the “posture in use” to the “posture in storage”, there is no problem. There is no.

For example, when changing the position of the seat back 3 while maintaining the load rest 7 in the “use position”, the seat back 3 is pulled up as it is. In this case, the lock lever 23 is set to the "locked position", but the lock lever 23 approaches the striker 9 as the seat back 3 falls down, and the cam surface 29 of the striker 9 9, the lock lever 23 is rotated in the direction of arrow b by the cam action,
The posture is changed from the “locking position” to the “locking release position” side. Then, the striker 9 passes through the lower end of the cam surface 29 and enters the receiving groove 19 side of the set plate 13, and at the same time, the lock lever 23 returns and rotates in the direction of the arrow a by the spring force of the return spring 27. Then, the striker 9 is hooked on the hook portion 28, so that the seat back 3 is fixed to the vehicle body in the "standing posture" (see the state of FIG. 3).

Thereafter, the load rest 7 which has been set to the "use posture" is rotated in the direction of arrow f to set it to the "storage posture". In this case, as shown in FIG. 5, the load rest 7 rotates in a direction indicated by an arrow f from a state in which the engagement element 17 is located below the engagement portion 24 of the first swing lever 21. Therefore, during the rotation, the engagement element 17 is engaged with the engagement portion 24 from below, and the first swing lever 21 is rotated in the direction of arrow c. However, the first swing lever 21
The increase in the distance between the first swing lever 21 and the second swing lever 22 due to the rotation in the direction of the arrow c is absorbed by the extension of the tension spring 26, and the second swing lever 22 Does not work at all. That is, irrespective of the operation of changing the posture of the load rest 7 from the “posture in use” to the “posture in storage”, the lock lever 23 maintains the “locked position” and the “stand-up posture” of the seat back 3. The fixed state at is maintained.

As described above, in the seat device of this embodiment, when the posture of the seat back 3 is changed from the "forward leaning posture" to the "standing posture" and fixed, the posture of the load rest 7 is changed. Is not a problem at all, and, of course, the operability in use is improved due to such operational characteristics, but in addition to this, high safety in use is also ensured. It is.

That is, for example, when a configuration is employed in which the load rest 7 and the seat lock means X are directly connected by the operating force transmitting means Y, the seat back 3 is Fixing in the "standing position" is possible only when the load rest 7 is set to the "resting position".
Is set to the “posture in use”, the seat back 3 cannot be fixed even if the seat back 3 is set to the “standing posture”. For this reason, for example, the seat back 3 is set to the “standing position” while the load rest 7 is set to the “posting position”,
If the occupant sits on the seat, the seat back 3 may be inadvertently tilted forward when the vehicle is suddenly stopped, which may adversely affect the occupant's safety.

However, in this embodiment,
As described above, irrespective of whether the load rest 7 is set to the “posture at use” or the “posture at the time of storage”, the seat back 3 is not affected by the “stand-up posture”.
, And can be fixed to the vehicle body side in that position, the above-mentioned concerns cannot be caused at all, and the safety in use is improved accordingly.

On the other hand, contrary to the above,
When the posture of the seat back 3 is changed from the "forward posture" to the "standing posture" after the posture is changed from the "use posture" to the "storage posture", from the state shown in FIG. First, the load rest 7 is rotated in the direction of the arrow f to set it to the “posture at the time of storage”. In this case, with the rotation of the load rest 7, the engaging element 17 engages with the engaging portion 24 of the first swing lever 21 from below and rotates the engaging portion 24 in the direction of arrow c. However, the lock lever 23 is maintained at the "locking position" regardless of the rotation of the first swing lever 21 in the direction of the arrow c, as in the case described above.

After setting the position of the load rest 7 to the "retracted position", the seat back 3 is pulled up rearward to set the position to the "standing position". In this case, the striker 9 comes into contact with the cam surface 29 of the lock lever 23, and the lock lever 23
Is rotated to the "unlocked position" side and then returned to the "unlocked position" side so that the striker 9 is hooked to the hook portion 28, and the seat back is locked by the lock lever 23. 3 is realized in the “standing position”, which is also the same as the above case.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an on-vehicle state of a vehicle seat device according to the present invention.

FIG. 2 is a partially enlarged view showing a structure of a catch means provided in the seat device shown in FIG.

FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2;

FIG. 4 is a state change diagram of the catch means shown in FIG. 3;

FIG. 5 is a state change diagram of the catch means shown in FIG. 3;

FIG. 6 is a state change diagram of the catch means shown in FIG. 3;

[Explanation of symbols]

1 is a rear seat, 2 is a seat cushion, 3 is a seat back, 4 is a driver seat, 5 is a passenger seat, 6 is a hinge mechanism, 7 is a load rest, 9 is a striker, 10 is a luggage space, and 11 is a plate frame. , 12 is a pipe frame, 13 is a set plate, 14 is a fixed side bracket, 15 is a movable side bracket, 16 is a pivot shaft, 17 is an engaging element, 18 is a stopper, 19 is a receiving groove, and 21 is a first swing lever. , 22 is a second swing lever, 23 is a lock lever, 24 and 25 are engaging portions, 26 is a tension spring,
7 is a return spring, 28 is a hook portion, 29 is a cam surface, 31 is a fulcrum pin, 32 is a fulcrum pin, 33 is an engagement pin, 34 and 35 are guide grooves, Y is operating force transmitting means, X
Is a seat lock means.

Claims (2)

[Claims] 1. A seat back (3), which is arranged at a front end of a luggage space (10) so as to be tiltable between a “forward posture” and a “standing posture”, and a seat lock is provided in the “standing posture”. The seat back (3) can be fixed to the vehicle body by means (X), and the backrest (3a) of the seatback (3) has a "resting posture" in which the loadrest (7) is folded down along the backside (3a). A vehicle seat device mounted so that the posture can be changed between a "posture in use" standing from a back surface (3a), and the seat lock means (X) and the load rest (7).
During this time, the operating force associated with the operation of changing the attitude of the load rest (7) from the “storage attitude” to the “use attitude” is transmitted to the seat lock means (X) and the seat lock means (X) is transmitted. The vehicle seat device according to claim 1, further comprising an operating force transmitting means (Y) for releasing the fixed state of the seat back (3). 2. The system according to claim 1, wherein the operating force transmitting means (Y) is provided on the road rest (7).
And the seat lock means (X) can be interlocked in a non-connected state.