JP3564752B2 - Vehicle seat device - Google Patents

Description

[0001]
[Industrial applications]
TECHNICAL FIELD The present invention relates to a vehicle seat device that allows a seat to be stored and a seat to be disengaged around a seat front portion.
[0002]
[Prior art]
As this kind of prior art, there is known one described in Japanese Utility Model Publication No. 5-46978. This consists of a rotation support mechanism that rotatably supports the front portion of the seat with respect to the floor of the vehicle body, and a fixing mechanism that allows the rear portion of the seat to be freely disengageable from the floor of the vehicle body. The rear part is detached from the vehicle body floor, the seat is turned upside down around the front part of the seat, and the seated state is changed to the stowed state.
[0003]
[Problems to be solved by the invention]
In the above-described conventional technology, when the seat is in the retracted state, the headrest attached to the seat comes into contact with the floor of the vehicle body. For example, the sheet cannot be stored vertically. Further, when the sheet is in the stored state, the engaging portion of the fixing mechanism protrudes from the cover, so that the cargo space cannot be used effectively.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a storage state in which a headrest is mounted on a seat, and a cargo space is effectively used.
[0005]
[Means for Solving the Problems]
Means taken for solving the above-mentioned problem in the invention according to claim 1 are a first bracket disposed at a front portion of a seat, a second bracket disposed at a rear portion of the seat, and the first bracket. , A second connection member disposed on the second bracket, and a third connection member disposed substantially parallel to the seat via the first and second connection members. A rotation support mechanism that rotatably supports one end of the third connection member with respect to the floor of the vehicle body, a fixing mechanism that removably fixes the other end of the third connection member to the floor of the vehicle body, A cover disposed at a lower portion of the seat to cover the rotation support mechanism and the fixing mechanism; a parallel link mechanism is formed by the seat, the first connecting member, the second connecting member, and the third connecting member, and the seat is stored; The fixing mechanism Together to be stored in the chromatography, is that was movable in the vehicle seat device the seat upward relative to the third connection member.
[0006]
According to a second aspect of the present invention, there is provided a biasing member which is wound around a connecting portion between the first connecting member and the third connecting member, and has one end engaged with the first connecting member and the other end engaged with the connecting portion. A third connecting member and a connecting portion that rotate integrally with the first connecting member, the first connecting member being partly extended on the floor of the vehicle body and constantly abutting and urged by the urging member. .
[0007]
[Action]
According to the above-described vehicle seat device of the first aspect, by releasing the fixing of the rear portion of the seat by the fixing mechanism, the seat can be turned upside down with the rotation support mechanism as the center of rotation. When the headrest of the seat comes into contact with the floor of the vehicle body, the seat may be moved upward with respect to the third connecting member by a parallel link mechanism formed by the seat, the first, second, and third connecting members. As a result, the distance between the seat and the third connecting member can be reduced. Accordingly, the seat can be stored in a state where the headrest is attached to the seat, and the thickness of the seat in the stored state can be reduced. When the seat is changed from the stowed state to the seated state, the seat is tilted down to the floor of the vehicle body, so that the fixing mechanism is returned to a fixable state before being fixed by the parallel link mechanism, and the seat can be accurately fixed. It can be in a sitting state. Further, since the engaging portion of the fixing mechanism that engages with the vehicle body can be stored in the seat cover by the parallel link mechanism, the loading space can be effectively used.
[0008]
According to the vehicle seat device of the second aspect, the biasing member having one end engaged with the first connecting member and the other end engaged with the connecting portion allows the first connecting member to always contact the floor of the vehicle body. Being energized. When the fixing of the rear portion of the seat is released by the fixing mechanism, the urging member rotates the third connecting member via the connecting portion, and the seat can be automatically raised and lowered. In addition, since the urging member moves the sheet upward with respect to the third connecting member at the same time as raising and lowering the sheet, it is possible to easily store the seat with the headrest attached thereto.
[0009]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 shows a side view of the vehicle seat device 10. FIG. 2 shows an enlarged view of the waist. As shown in the figure, a seat back 12 is supported by a seat cushion 11 via a well-known reclining mechanism (not shown), and a head rest 13 is detachably mounted on the seat back 12. The seat cushion 11 has a seat rail 14 disposed on the lower side in the figure, a first bracket 15 disposed on one end (left end in the figure) of the seat rail 14, and a second bracket 15 on the other end (right end in the figure). 16 are provided. One end of a substantially J-shaped first link (first connecting member) 17 is rotatably connected to the first bracket 15 by a pin 18, and the other end is rigidly connected to the vehicle seat device. Is inserted. Further, a second link (second connecting member) 20 is connected to the second bracket 16, and a third link is provided between the first link 17 and the second link 20 so as to be substantially parallel to the seat rail 14. (Third connecting member) 21 is connected by pins 22 and 23. The shaft of the pin 22 that connects the third link 21 to the first link 17 is rectangular, and the third link 21 and the pin 22 can be integrally rotated. One end of a spiral spring 24 is engaged with the pin 22, and the other end of the spring 24 is engaged with the pipe 19. A fixing mechanism is provided at one end (right end in the figure) of the third link 21, and a rotation support mechanism is provided at the other end (left end in the figure). A cover 25 is provided on the seat cushion 11, and covers each mechanism.
[0011]
The fixing mechanism includes a third bracket 27 fixed to the third link 21 by a bolt 26, a first hook 29 rotatably supported by a pin 28 on the third bracket 27, and a rigid body 31 of a floor 30 of the vehicle body. , A first striker 32 engaged with a first hook 29, a release lever 34 pivotally supported by a pin 33 on a third bracket 27, and a pivotally supported pivotally supported by a pin 35 on a third link 21. And a second hook 37 which can be engaged with a pin 36 connecting the second bracket 16 and the second link 20. A locking member 34a is attached to the pin 33 that supports the release lever 34 so as to be integrally rotatable, and the first hook 29 and the locking member 34a are connected by a spring 38 and are locked. The shaft portion of the pin 35 that supports the second hook 37 on the third link 21 is rectangular. One of the pins supports the second hook 37 and the other supports the release plate 39. The release plate 39 and the release lever 34 are connected by, for example, a wire or the like. When the release lever 34 is operated, the second hook 37 is also operated in conjunction. A parallel link mechanism is formed by the seat rail 14, the first link 17, the second link 20, and the third link 21.
[0012]
The rotation support mechanism includes a third hook 40 fixed to the other end of the third link 21, a third striker 41 disposed on the rigid body 31 of the floor 30 of the vehicle body and engaged with the third hook 40, A fourth hook 43 is rotatably supported on the pin 40 by a pin 42, and one end is engageable with the third striker 41, and the other end is in contact with the rigid body 31 of the floor 30 of the vehicle body. A spring 44 is wound around the pin 42 and urges the fourth hook 43 in the engaging direction. When the rear portion of the seat is separated from the floor 30 of the vehicle body by the operation of the fixing mechanism, the rotation support mechanism enables the seat cushion 11 to rotate about the third striker 41 as a rotation center. When the seat cushion 11 is moved up and down to the retracted state, the headrest 13 disposed on the seat back 12 comes into contact with the floor 30 of the vehicle body, and when the seat cushion 11 is further moved up, the seat moves upward with respect to the third link 21. Thus, the distance between the third link 21 and the seat rail 14 can be reduced. This state is shown in FIG.
[0013]
Next, the operation of this embodiment will be described.
[0014]
When the seat back 12 is tilted toward the seat cushion 11 by a reclining mechanism (not shown) and the release lever 34 is rotated in the X direction, the locking member 34a is rotated to lock the locking member 34a and the first hook 29. To release. When the lock is released, the first hook 29 is rotated in the X direction by the urging force of the spring 38, and the engagement with the first striker 32 is released. When the release lever 34 simultaneously releases the engagement between the second hook 37 and the second striker (pin 36) 36 and lowers the seat cushion 11, the seat 24 is moved to the third link 21 by the urging force of the spring 24. In order to move the seat upward, the distance between the seat rail 14 and the third link 21 can be reduced, and the thickness of the entire seat can be reduced. Further, at this time, the engaging portion of the fixing mechanism is stored in the cover 25 because the distance between the seat rail 14 and the third link 21 is reduced. Further, since the seat rail 14 is moved upward by the parallel link mechanism, the seat cushion 11 can be made substantially vertical even when the headrest 13 is mounted. When the seat cushion 11 is in the retracted state, the fourth hook 43 rotates in the engagement direction while the other end slides on the rigid body 31 of the floor 30 of the vehicle body. Then, before the seat cushion 11 enters the retracted state, the fourth hook 43 is engaged with the third striker 41, and the third hook 40 and the fourth hook 43 fix the seat cushion 11 to the floor 30 of the vehicle body. FIG. 3 shows the stored state of the sheet. In addition, since the third hook 40 only engages during the storage of the sheet, the sheet can be easily removed.
[0015]
Although the above-described spring 24 moves the seat upward when the seat is in the stowed state, the seat can be moved upward without using the spring 24. When the seat cushion 11 comes down, the headrest 13 comes into contact with the floor 30 of the vehicle body. When the seat cushion 11 is raised and lowered as it is, the seat can be moved upward with respect to the third link 21 by the parallel link mechanism, and the distance between the seat rail 14 and the third link 21 is reduced. The overall thickness can also be reduced.
[0016]
When the seat cushion 11 is changed from the retracted state to the seated state, the fourth hook 43 is separated from the third striker 41 and the other end of the floor 30 of the vehicle body is lowered by lowering the seat cushion 11 toward the floor 30 of the vehicle body. It contacts the rigid body 31. Further, the pitch between the first hook 29 and the third hook 40 and the pitch between the first striker 32 and the third striker 41 are not changed by the parallel link mechanism. As a result, the fixing mechanism returns to a fixable state, and the first hook 29 is engaged with the first striker 32. At this time, when the seat cushion 11 is moved in a direction to separate the seat from the third link 21 and the seat rail 14, the second hook 37 and the second striker 36 are engaged to complete the seating state.
[0017]
The seat rail 14 and the parallel link mechanism formed by the first, second, and third links 17, 20, 21 can move the seat upward with respect to the third link 21, and the seat rail 14 and the third The distance from the link 21 can be reduced. Thus, the seat can be stored while the headrest 13 is mounted on the seat, and the thickness of the entire seat in the stored state can be reduced. Further, the engaging portion of the fixing mechanism that engages with the vehicle body can be stored in the seat cover 25 by the third link 21, so that the cargo space can be effectively used.
[0018]
Next, another embodiment will be described.
[0019]
FIG. 4 shows a side view of the vehicle seat device 50. FIG. 5 shows an enlarged view of the waist. As shown in the figure, a seat back 52 is supported by a seat cushion 51 via a well-known reclining mechanism (not shown), and a head rest 53 is detachably mounted on the seat back 52. The seat cushion 51 is provided with a seat rail 54 at the lower side in the figure, a first bracket 55 at one end (left end in the figure) of the seat rail 54, and a second bracket at the other end (right end in the figure). 56 are provided. One end of a substantially Y-shaped first link (first connecting member) 57 is rotatably connected to the first bracket 55 by a pin 58, and the other end secures rigidity to the vehicle seat device. Pipe 59 is inserted. Further, the remaining end 57a of the first link 57 is always in contact with the floor 60 of the vehicle body. Further, a second link (second connecting member) 62 is connected to the second bracket 56, and the third link is connected to the first link 55 and the second link 56 so as to be substantially parallel to the seat rail 54. (Third connecting member) 63 is connected by pins 64 and 65. The shaft of the pin 64 connecting the third link 63 to the first link 57 is rectangular, and the third link 63 and the pin 64 can be integrally rotated. One end of a spiral spring 66 is engaged with the pin (connecting portion) 64, and the other end of the spring 66 is engaged with a pipe 59. Further, a fixing mechanism is provided at one end (right end in the figure) of the third link 63, and a rotation support mechanism is provided at the other end (left end in the figure). Also, a cover 67 is provided on the seat cushion 51, and covers each mechanism. The end portion 57a of the first link 57 is urged by a spring 66 so as to always contact the floor 60 of the vehicle body. When the fixing of the seat cushion 51 is released by the fixing mechanism, the spring 66 The third link 63 is rotated via the lock 64 so that the seat cushion 51 can be automatically turned upside down.
[0020]
The fixing mechanism includes a third bracket 69 fixed to the third link 63 by a bolt 68, a first hook 71 rotatably supported by a pin 70 on the third bracket 69, and a rigid body 61 of a floor 60 of the vehicle body. , A first striker 72 engaged with a first hook 71, a release lever 74 pivotally supported by a pin 73 on a third bracket 69, and a pivotally supported pivotally supported by a pin 75 on a third link 63. And a second hook 77 which can be engaged with a pin 76 connecting the second bracket 56 and the second link 62. A locking member 74a is attached to the pin 73 pivotally supporting the release lever 74 so as to be integrally rotatable. The first hook 71 and the locking member 74a are connected by a spring 78 and are locked. The shaft portion of the pin 75 that supports the second hook 77 on the third link 63 is rectangular. One end supports the second hook 77 and the other end supports the release plate 79. The release plate 79 and the release lever 74 are connected by, for example, a wire or the like. When the release lever 74 is operated, the second hook 77 is also operated in conjunction. A parallel link mechanism is formed by the seat rail 54, the first link 57, the second link 62, and the third link 63.
[0021]
The rotation support mechanism includes a third hook 80 fixed to the other end of the third link 63, a third striker 81 disposed on the rigid body 61 of the floor 60 of the vehicle body and engaged with the third hook 80, A pin 80 is rotatably supported by a pin 82, and one end is engageable with the third striker 81, and the other end is constituted by a fourth hook 83 abutting on the rigid body 61 of the floor 60 of the vehicle body. A spring 84 is wound around the pin 82 to urge the fourth hook 83 in the engaging direction. When the rear portion of the seat is separated from the floor 60 of the vehicle body by the operation of the fixing mechanism, the rotation support mechanism automatically raises and lowers the seat cushion 51 around the third striker 81 by the urging force of the spring 66. Then, when the seat cushion 51 is raised and retracted, the seat moves upward with respect to the third link 63, and the distance between the third link 63 and the seat rail 54 can be reduced. This state is shown in FIG.
[0022]
Next, the operation of another embodiment will be described.
[0023]
When the seat back 52 is tilted toward the seat cushion 51 by a reclining mechanism (not shown) and the release lever 74 is rotated in the X ′ direction, the locking member 74a is rotated, and the locking between the locking member 74a and the first hook 78 is performed. Is released. When the lock is released, the first hook 78 is rotated in the X ′ direction by the urging force of the spring 78, and the engagement with the first striker 72 is released. The release lever 74 simultaneously releases the engagement between the second hook 77 and the second striker (pin 76) 76, so that the urging force of the spring 66 regulated at the time of fixing rotates the third link 63. Then, the seat cushion 51 is automatically moved up and down. Further, as the third link 63 is rotated, the distance between the seat rail 54 and the third link 63 gradually decreases, and the seat thickness may be reduced when the seat cushion 51 is in the retracted state. it can. At this time, the engaging portion of the fixing mechanism is stored in the cover 67 by shortening the distance between the seat rail 54 and the third link 63. Further, since the seat rail 54 is moved upward by the parallel link mechanism, the seat cushion 51 can be made substantially vertical even when the headrest 53 is mounted. When the seat cushion 51 is in the retracted state, the fourth hook 83 rotates in the engaging direction while the other end slides on the rigid body 61 of the floor 60 of the vehicle body. Then, before the seat cushion 51 enters the retracted state, the fourth hook 83 is engaged with the third striker 81, and the third hook 80 and the fourth hook 83 fix the seat cushion 51 to the floor 60 of the vehicle body. FIG. 6 shows the stored state of the sheet. In addition, since the third hook 80 only engages during storage of the sheet, the sheet can be easily removed.
[0024]
When the seat cushion 51 is changed from the retracted state to the seated state, the fourth hook 83 is separated from the third striker 81 and the other end of the floor 60 of the vehicle body is lowered by lowering the seat cushion 51 toward the floor 60 of the vehicle body. It contacts the rigid body 61. Further, since the pitch between the first hook 71 and the third hook 80 and the pitch between the first striker 72 and the third striker 81 are not changed by the parallel link mechanism, the seat is fixed by rotating the seat as it is. be able to. When the seat cushion 51 is rotated, the end 57a of the first link 57 slides on the floor 60 of the vehicle body, so that the fixing mechanism is gradually seated by the parallel link mechanism, and the second hook 77 is moved to the second striker. 76, the first hook 71 engages the first striker 72, and the seating state is completed. One urging force of the spring 60 is regulated by the end 57a of the first link 57, and the other is biased. The biasing force is regulated by the fixed third link 63.
[0025]
From the above, when the fixing of the rear portion of the seat is released by the fixing mechanism by the spring 66 whose one end is engaged with the first link 57 and the other end is engaged with the pin 64, the spring 66 becomes the third through the pin 64. The link 63 is rotated, and the sheet is automatically turned upside down. In addition, the spring 66 moves the seat upward with respect to the third link 63 at the same time as raising and lowering the seat, so that the seat can be easily stored while the headrest 53 is attached to the seat.
[0026]
Although the release levers 34 and 74 described in the above two embodiments release the first hooks 29 and 71 and the second hooks 37 and 77, the release levers 34 and 74 release the first hooks 29 and 71 and the second hook 37. , 77 may be provided by providing separate release levers.
[0027]
【The invention's effect】
According to the vehicle seat device of the first aspect, the seat is moved upward with respect to the third connecting member by the parallel link mechanism formed by the seat and the first, second, and third connecting members. As a result, the distance between the seat and the third connecting member can be reduced. Accordingly, the seat can be stored while the headrest is attached to the seat, and the thickness of the entire seat in the stored state can be reduced. When the seat is changed from the stowed state to the seated state, the seat is returned to a fixable state before the fixing mechanism is fixed by the parallel link mechanism by lowering the seat to the floor of the vehicle body, and the seat is accurately fixed. Can be placed in a seated state. Further, the engaging portion of the fixing mechanism that engages with the vehicle body can be stored in the cover of the seat by the third connecting member, so that the cargo space can be effectively used.
[0028]
According to the vehicle seat device of the second aspect, when the fixing of the rear portion of the seat is released by the fixing mechanism by the urging member having one end engaged with the first connecting member and the other end engaged with the connecting portion, the urging member is provided. Can rotate the third connecting member via the connecting portion, and can automatically raise and lower the sheet. In addition, since the urging member moves the sheet upward with respect to the third connecting member at the same time as raising and lowering the sheet, it is possible to easily store the seat with the headrest attached thereto.
[Brief description of the drawings]
FIG. 1 shows a side view of a vehicle seat device according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a waist according to an embodiment of the present invention.
FIG. 3 is a side view of the vehicle seat device according to the embodiment of the present invention.
FIG. 4 is a side view of a vehicle seat device according to another embodiment of the present invention.
FIG. 5 is an enlarged view of a waist according to another embodiment of the present invention.
FIG. 6 is a side view of a vehicle seat device according to another embodiment of the present invention.
[Explanation of symbols]
15, 55: first bracket 16, 56: second bracket 17, 57: first link (first connecting member)
20, 62... Second link (second connecting member)
21, 63... Third link (third connecting member)
24, 66: Spring (biasing member)
64 Pin (connection part)

Claims (2)

A first bracket disposed at a front portion of the seat, a second bracket disposed at a rear portion of the seat, a first connecting member disposed at the first bracket, and a second bracket disposed at the second bracket. A second connecting member, a third connecting member disposed substantially parallel to the seat via the first and second connecting members, and one end of the third connecting member rotatable with respect to a floor of the vehicle body. A rotation support mechanism for supporting, a fixing mechanism for removably fixing the other end of the third connecting member to a floor of the vehicle body, and a cover disposed below the seat and covering the rotation support mechanism and the fixing mechanism. A parallel link mechanism is formed by the seat, the first connecting member, the second connecting member, and the third connecting member so that the fixing mechanism is stored in the cover when storing the sheet, Front to third connecting member Vehicle seat apparatus which can be moved upward to the sheet. A biasing member wound around a connecting portion between the first connecting member and the third connecting member, one end of which is engaged with the first connecting member and the other end of which is engaged with the connecting portion; And a first connecting member which is always extended and is in contact with and is urged by the urging member, wherein the third connecting member and the connecting portion rotate integrally. Vehicle seat device.

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