JP3569970B2 - 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 related art, there is known one disclosed 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 floor of the vehicle body, the seat is turned upside down around the front part of the seat, and the seat is brought into the retracted state from the seated state.
[0003]
[Problems to be solved by the invention]
In the above-described conventional technology, when the seat is in the stored state, the engaging portion of the fixing mechanism that engages with the floor of the vehicle body projects, so that the cargo space cannot be used effectively. It is also conceivable that a cover is provided to cover the fixing mechanism, but the engaging portion of the fixing mechanism protrudes. It is also conceivable to store the fixing mechanism. However, since two engagement portions are required, two release levers for releasing the respective engagements are required, and operability when the sheet is stored is reduced. It gets worse.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to improve the operability when the fixing mechanism is released when the seat is in a stored state, in which the engaging portion of the fixing mechanism can be stored in the cover of the seat.
[0005]
[Means for Solving the Problems]
A rotation support mechanism disposed at a front portion of the seat and rotatably supporting the seat with respect to the floor of the vehicle body, a mounting member supported at a rear portion of the seat via a pivot shaft, and a vehicle body supported by the mounting member A fixing mechanism provided with a first engagement member engageable with the floor of the second member and a second engagement member supported by the attachment member and engageable with the seat; and the rotation support mechanism disposed below the seat. A cover that covers the fixing mechanism; and a release member that is disposed on the fixing mechanism and that releases the engagement of the first engagement member. The first engagement member rotates integrally with the release member. The second engagement member is rotatably supported, and is rotatable integrally with the first engagement member via a connection means, and the one release member is capable of storing and disengaging the sheet.
[0006]
[Action]
According to the vehicle seat device described above, when the seat is changed from the seated state to the retracted state, the seat can be turned upside down by releasing the engagement with the floor of the vehicle body by the fixing mechanism at the rear of the seat. In this fixing mechanism, when the release member is rotated, the first engagement member is integrally rotated and the engagement with the floor of the vehicle body is released. When the release member is rotated, the second engagement member is simultaneously rotated by the connection means, and the engagement with the seat is released. By releasing the engagement by the second engagement member, the fixing mechanism can be stored in the cover of the seat, and the engaging portion of the fixing mechanism can be prevented from protruding when the seat is stored.
[0007]
From the above, the seat can be stored and disengaged by operating the two engagement members with one release member, and the operability at the time of release is improved. Further, when the seat is in the stored state, the engaging portion of the fixing mechanism does not protrude out of the cover of the seat, and the loading space can be used effectively.
[0008]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
[0009]
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 headrest 13 (in FIG. 6) is detachably mounted on the seat back 12. ing. The seat cushion 11 is provided with a seat rail 14 at the lower side in the figure, a rotation support mechanism at one end (left end in the figure) of the seat rail 14, and a fixing mechanism at the other end (right end in the figure). Is established. The seat rail 14 includes an upper rail 14a fixed to the seat, and a lower rail 14b slidably fitted to the upper rail 14a and having a rotation support mechanism and a fixing mechanism. A cover 15 is provided on the seat cushion 11, and covers each mechanism.
[0010]
The fixing mechanism includes a bracket (attachment member) 17 rotatably supported on the lower rail 14 b by a pin (pivot shaft) 16, and a first hook (first member) rotatably supported on the bracket 17 by a pin 18. 1 engagement member) 19, a first striker 22 disposed on the rigid body 21 of the floor 20 of the vehicle body and engaged with the first hook 19, and a release lever (release member) 24 pivotally supported by the bracket 19 with the pin 23. A locking member 24a pivotally supported by a pin 23 that supports the release lever 24 so as to be integrally rotatable with the release lever 24; and a second hook (secondly pivotally supported by the bracket 17 by the pin 25). (An engaging member) 26, and a second striker 27 disposed on the lower rail 14b and engaged with the second hook 26. The first hook 19 and the locking member 24a are connected by a spring 28, and as shown in the figure, the locking portion between the locking member 24a and the first hook 19 is released by the release lever 24, so that the first hook 19 is released. The engagement between the striker 22 and the first hook 19 is released. Further, one end of the second hook 26 is engaged with the second striker 27, and the other end is connected to the locking member 24 a via connecting means (for example, a wire) 37. When the release lever 24 is operated, the second hook 26 is also rotated together with the first hook 19 to be disengaged.
[0011]
The rotation support mechanism includes a third hook 29 fixed to the other end of the lower rail 14b, a third striker 30 disposed on the rigid body 21 of the floor 20 of the vehicle body and engaging with the third hook 29, and a third hook 29. A fourth hook 32 is rotatably supported by the pin 31 and has one end engageable with the third striker 30 and the other end abutting on the rigid body 21 of the floor 20 of the vehicle body. A spring 33 is wound around the pin 31 to urge the fourth hook 32 in the engaging direction. One end of the link 34 is connected to the other end of the fourth hook 32 by a pin 35, and the other end is connected to the bracket 17 via a spring 36. When the rear portion of the seat is separated from the floor 20 of the vehicle body by the operation of the fixing mechanism, the rotation support mechanism allows the seat to rotate about the third striker 30 as a rotation center. When the seat is in the retracted state, the fourth hook 32 is engaged with the third striker 30 by the urging force of the spring 34, and the seat is fixed to the floor 20 of the vehicle body.
[0012]
Next, the operation of this embodiment will be described.
[0013]
When the seat back 12 is tilted toward the seat cushion 11 by a reclining mechanism (not shown) and the release lever 24 is rotated in the X direction, the locking member 24a rotates, and the locking between the locking member 24a and the first hook 19 is stopped. To release. When the lock is released, the first hook 19 is rotated in the X direction by the urging force of the spring 28, and the engagement with the first striker 22 is released. Further, the release lever 24 releases the first hook 19 and simultaneously rotates the second hook 26 via the connecting member 37 to release the engagement between the second hook 26 and the second striker 27, and release the seat cushion 11. The link 34 pivots the bracket 17 in the Y direction when it is raised, and when the seat cushion 11 is further raised, the engaging portion of the fixing mechanism is stored in the cover 15. When the seat cushion 11 is in the retracted state, the fourth hook 32 is rotated in the engagement direction while the other end slides on the rigid body 21 of the floor 20 of the vehicle body. Before the seat cushion 11 is in the retracted state, the fourth hook 32 is engaged with the third striker 30, and the third hook 29 and the fourth hook 32 fix the seat cushion 11 to the floor 20 of the vehicle body. FIG. 3 shows the stored state of the sheet. Further, while the fourth hook 32 is engaged with the third striker 30, the sheet can be engaged and disengaged, and the sheet can be easily engaged and disengaged.
[0014]
When the seat cushion 11 is changed from the retracted state to the seated state, the fourth hook 32 is separated from the third striker 30 by lowering the seat cushion 11 to the floor 20 side of the vehicle body, and the other end of the fourth hook 32 is moved. It contacts the rigid body 21 of the floor 20 of the vehicle body. Then, the fixing mechanism is returned to a fixable state before engaging with the first striker 22 and the second striker 27 by the urging force of the spring 36 connecting the link 34 and the bracket 17. Thereafter, when the first hook 19 and the second hook 26 come into contact with the first striker 22 and the second striker 27, when the seat cushion 11 is pushed, the respective hooks are engaged with the striker and the seating state is completed.
[0015]
Next, another embodiment will be described.
[0016]
FIG. 4 shows a side view of the vehicle seat device 40. FIG. 5 shows an enlarged view of the waist. As shown in the figure, a seat back 42 is supported by a seat cushion 41 via a well-known reclining mechanism (not shown), and a headrest 43 is detachably mounted on the seat back 42. The seat cushion 41 is provided with a seat rail 44 on the lower side in the figure, a first bracket 45 on one end (left end in the figure) of the seat rail 44, and a second bracket on the other end (right end in the figure). 46 are provided. One end of a substantially J-shaped first link 47 is rotatably connected to the first bracket 45 by a pin 48, and a pipe 49 for securing rigidity to the vehicle seat device is provided at the other end. It is inserted. Further, a second link 50 is connected to the second bracket 46, and a third link 51 is provided between the first link 47 and the second link 50 by pins 52 and 53 so as to be substantially parallel to the seat rail 44. Are linked by The shaft of the pin 52 that connects the third link 51 to the first link 47 is rectangular, and the third link 51 and the pin 52 can rotate integrally. One end of a spiral spring 54 is engaged with the pin 52, and the other end of the spring 54 is engaged with a pipe 49. Further, a fixing mechanism is provided at one end (right end in the figure) of the third link 51, and a rotation support mechanism is provided at the other end (left end in the figure). A cover 55 is provided on the seat cushion 41, and covers each mechanism.
[0017]
The fixing mechanism includes a third bracket (attachment member) 57 fixed to the third link 51 by a bolt (pivot shaft) 56 and a first hook (pivotally rotatably supported by the third bracket 57 by a pin 58). A first striker 62 disposed on the rigid body 61 of the floor 60 of the vehicle body and having the first hook 59 engaged therewith; and a release lever pivotally supported by the third bracket 57 by the pin 63. (A release member) 64 and a second hook (second engaging member) rotatably supported by the third link 51 by a pin 65 and rotatably supported by a pin 66 connecting the second bracket 46 and the second link 50. (Combined member) 67. A locking member 64a is attached to the pin 63 that supports the release lever 64 so as to be integrally rotatable. The first hook 59 and the locking member 64a are connected by a spring 68 to be locked. The shaft portion of the pin 65 that supports the second hook 67 on the third link 51 is rectangular. One of the shafts supports the second hook 67, and the other supports the release plate 69. The release plate 69 and the release lever 64 are connected by a connecting means 75 such as a wire, for example. By operating the release lever 64, the second hook 67 is also operated in conjunction. A parallel link mechanism is formed by the seat rail 44, the first link 47, the second link 50, and the third link 51.
[0018]
The rotation support mechanism includes a third hook 70 fixed to the other end of the third link 51, a third striker 71 disposed on the rigid body 61 of the floor 60 of the vehicle body and engaged with the third hook 70, A fourth hook 73 is rotatably supported by a pin 72 by a pin 72, one end of which is engageable with the third striker 71, and the other end of which is in contact with the rigid body 61 of the floor 60 of the vehicle body. A spring 74 is wound around the pin 72 to urge the fourth hook 73 in the engaging direction. The rotation support mechanism enables the seat cushion 41 to rotate about the third striker 71 when the rear portion of the seat is separated from the floor 60 of the vehicle body by the operation of the fixing mechanism. When the seat cushion 41 is moved up and down to the retracted state, the headrest 43 disposed on the seat back 42 comes into contact with the floor 60 of the vehicle body. Thus, the distance between the third link 51 and the seat rail 44 can be reduced. This state is shown in FIG.
[0019]
Next, the operation of this embodiment will be described.
[0020]
When the seat back 42 is tilted toward the seat cushion 41 by a reclining mechanism (not shown) and the release lever 64 is rotated in the X direction, the locking member 64a rotates, and the locking between the locking member 64a and the first hook 59 is stopped. To release. When the locking is released, the first hook 59 is rotated in the X direction by the urging force of the spring 68, and the engagement with the first striker 62 is released. In addition, the release lever 64 simultaneously rotates the second hook 67 via the connecting means 75 to release the engagement between the second hook 67 and the second striker (pin 66) 66, and raises and lowers the seat cushion 41. Then, since the seat is moved upward with respect to the third link 51 by the urging force of the spring 54, the distance between the seat rail 44 and the third link 51 can be reduced, and the thickness of the entire seat can be reduced. . At this time, the engaging portion of the fixing mechanism is stored in the cover 55 due to a decrease in the distance between the seat rail 44 and the third link 51. In addition, since the seat rail 44 is moved upward by the parallel link mechanism, the seat cushion 41 can be made substantially vertical even when the headrest 43 is mounted. When the seat cushion 41 is in the retracted state, the fourth hook 73 rotates in the engagement direction while the other end slides on the rigid body 61 of the floor 60 of the vehicle body. Then, before the seat cushion 41 is in the retracted state, the fourth hook 73 is engaged with the third striker 71, and the seat cushion 41 is fixed to the floor 60 of the vehicle body by the third hook 70 and the fourth hook 73. FIG. 6 shows the stored state of the sheet. Further, since the third hook 70 only engages during the storage of the sheet, the sheet can be easily disengaged.
[0021]
Note that the seat has been moved upward when the seat is in the retracted state by the above-described spring 54, but the seat can be moved upward without using the spring 54. When the seat cushion 41 falls, the headrest 43 comes into contact with the floor 60 of the vehicle body. When the seat cushion 41 is raised and lowered as it is, the seat can be moved upward with respect to the third link 51 by the parallel link mechanism, the distance between the seat rail 44 and the third link 51 is reduced, and the seat is lowered. The overall thickness can also be reduced.
[0022]
When the seat cushion 41 is changed from the retracted state to the seated state, the fourth hook 73 is separated from the third striker 71 by lowering the seat cushion 41 toward the floor 60 of the vehicle body, and the other end of the vehicle is moved to the floor 60 of the vehicle body. It contacts the rigid body 61. Further, the pitch between the first hook 59 and the third hook 70 and the pitch between the first striker 62 and the third striker 71 are not changed by the parallel link mechanism. As a result, the fixing mechanism returns to a fixable state, and the first hook 59 is engaged with the first striker 62. At this time, when the seat cushion 41 is moved in a direction to separate the seat from the third link 51 and the seat rail 44, the second hook 67 and the second striker 66 are engaged, and the seating state is completed.
[0023]
According to the embodiment described above, the first hooks 19 and 59 and the second hooks 26 and 67 can be released by one release lever 24 and 64, and the sheet can be stored and disengaged. It can be made easier and operability can be improved. Further, the fixing mechanism can be stored in the covers 15 and 55, and the engaging portion of the fixing mechanism does not protrude out of the seat covers 15 and 55, so that the cargo space can be used effectively.
[0024]
【The invention's effect】
According to the vehicle seat device described above, when the seat is changed from the seated state to the stored state, the seat can be turned upside down by releasing the engagement with the floor of the vehicle body by the fixing mechanism at the rear of the seat. In this fixing mechanism, when the release member is rotated, the first engagement member is integrally rotated and the engagement with the floor of the vehicle body is released. When the release member is rotated, the second engagement member is simultaneously rotated by the connection means, and the engagement with the seat is released. By releasing the engagement by the second engagement member, the fixing mechanism can be stored in the cover of the seat, and the engaging portion of the fixing mechanism can be prevented from protruding when the seat is stored.
[0025]
From the above, the seat can be stored and disengaged by operating the two engagement members by one release member, and the operability at the time of release is improved. Further, when the seat is in the stored state, the engaging portion of the fixing mechanism does not protrude out of the cover of the seat, so that the cargo space can be used effectively.
[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 shows a waist enlargement 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]
16 ... Pin (pivot shaft)
56 ... bolt (pivot shaft)
17 ... bracket (mounting member)
57 ··· Third bracket (mounting member)
19, 59... First hook (first engaging member)
26, 67... Second hook (second engaging member)
15, 55 ... covers 24, 64 ... release lever (release member)
37, 75 ... connecting means

Claims (1)

A rotation support mechanism disposed at a front portion of the seat and rotatably supporting the seat with respect to the floor of the vehicle body, a mounting member supported at a rear portion of the seat via a pivot shaft, and a vehicle body supported by the mounting member A fixing mechanism provided with a first engagement member engageable with the floor of the second member and a second engagement member supported by the attachment member and engageable with the seat; and the rotation support mechanism disposed below the seat. A cover that covers the fixing mechanism; and a release member that is disposed on the fixing mechanism and that releases the engagement of the first engagement member. The first engagement member rotates integrally with the release member. The second engaging member is rotatably supported with the first engaging member via a connecting means, and the sheet can be stored and disengaged by the one releasing member. Vehicle seat device.

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