JP6244847B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicle seat device including a retractable seat.

Conventionally, for the purpose of widening the cargo space, etc., the seat back is overlapped on the upper surface of the seat cushion, folded and moved forward or backward from the use position where the passenger can be seated, to the storage part provided on the floor or floor A vehicle seat device including a retractable seat to be stored has been proposed.
In such a vehicle seat device, for example, a release strap for releasing a locking mechanism such as a latch mechanism fixed to the floor side or a reclining mechanism of a seat back is provided on the seat back, and a rear seat is stored. At this time, the lock mechanism is unlocked by pulling out the release strap. (See Patent Document 1).
For example, in the structure described in Patent Document 1, the reclining mechanism is unlocked by a pulling-out operation of the release strap, and further, the front leg is unlocked by pulling the strap as it is. It has become.

JP 2009-234370 A

By the way, if the unlocking strap can be used as a grip portion when the seat is moved between the use state and the storage position, it is very convenient and convenient.
However, the conventional structure using the release strap does not consider the lifting and moving of the seat with the release strap. Therefore, when the seat is moved and lifted using the strap, the load applied to the strap, that is, the weight of the seat is transmitted to the lock mechanism side, and the lock mechanism or the link for transmitting the movement of the strap to the lock mechanism A large load may be applied to the cable, which is not preferable.
The present invention has been made in view of the above circumstances, and the sheet is placed between the storage state and the use state by a series of operations while holding the strap for unlocking the lock mechanism that locks the use state or the storage state of the sheet. An object of the present invention is to provide a vehicular seat device that can be moved by a vehicle.

In order to achieve the above object, the invention according to claim 1 is a use in which an occupant can sit on a rear deck portion which is a floor surface higher than a front floor portion constituting a floor surface of a vehicle. A seat that is movable to a state and a storage state in which a seat back is folded on a seat cushion and stored on a front floor portion, a lock mechanism that locks the use state or the storage state of the seat, A vehicle seat device including a release mechanism that releases a lock by a lock mechanism, wherein the release mechanism has one longitudinal end connected to the lock mechanism and the other end arranged on the seat back side. A cable, a connector connected to the end of the cable on the seat back side, and a pull-out operation from the back surface of the seat back; A strap connected to the tool, said seat back inside the connector and moved to strap moving direction converting in a direction toward the frame member of the seat back in the drawer of the strap and changing the direction of the cabling of the strap A mechanism for pulling out the strap, the coupling tool is moved in a direction approaching the frame member, and the cable is pulled to unlock the locking mechanism. When pulled out as described above, the connecting tool is brought into contact with the frame member, and the pull-out amount of the strap is regulated.
According to a second aspect of the present invention, the strap moving direction changing mechanism is disposed in the vicinity of an opening through which the strap is pulled out, the guide member that is hooked on the strap and changes the routing direction of the strap, and the connector provided, the strap is characterized in that it comprises a securing member which the hooked member is folded into the guide member side is hung, the ends of the folded said strap is attached.
Third aspect of the present invention, wherein the frame member is a frame which extends in the lateral width direction of the seat back, the direction in which the connector approaches the frame member, in the height direction above the seat back There, the strap may be hooked on the guide member is converted into the height direction below the seat back, the hung member of the connector, are routed so as to be folded back in the height direction above the seat back It is characterized by that.
The invention according to claim 4 is characterized in that the strap moving direction changing mechanism moves the connector with a stroke smaller than the moving stroke of the strap.
The invention according to claim 5 is characterized in that the release mechanism further includes a guide mechanism for guiding the connector so as to be movable toward and away from the frame member.

  According to the present invention, when the seat is moved from the use state to the storage state or from the storage state to the use state, even if the seat is moved by holding the strap for unlocking the lock mechanism, the load on the strap is applied to the strap. Can all be received in the seat frame. Therefore, the seat can be moved between the storage state and the use state using the release strap without applying a large load to the lock mechanism or the cable that transmits the movement of the strap to the lock mechanism.

It is explanatory drawing which shows the use condition of the sheet | seat in the vehicle seat structure which concerns on embodiment. It is explanatory drawing which shows the accommodation state of the sheet | seat in the vehicle seat structure which concerns on embodiment. It is explanatory drawing which shows the state in the middle of the movement of the sheet | seat in the vehicle seat structure which concerns on embodiment. It is explanatory drawing which shows the structure of the locking mechanism vicinity in the vehicle seat structure which concerns on embodiment. (A) is explanatory drawing which shows the state before a strap is withdraw | derived in the vehicle seat structure which concerns on embodiment, (B) is explanatory drawing which shows the state with which the strap was pulled out to the drawer limit position. (A) is the perspective view which shows the structure of the strap moving direction conversion mechanism in the vehicle seat structure which concerns on embodiment, (B) is the perspective view which looked at (A) from the other side. (A) is an enlarged explanatory view showing a state before the strap is pulled out in the vehicle seat structure according to the embodiment, and (B) is an enlarged explanatory view showing a state in which the strap is pulled out to the pull-out limit position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a use state of the rear seat 10, FIG. 2 shows a storage state of the rear seat 10, and FIG. 3 shows a state in the middle of the rear seat 10 being moved between the use state and the storage state.
As shown in FIG. 1, the floor surface of the vehicle on which the rear seat 10 is installed is composed of a floor portion 18 positioned in front and a rear deck portion 20 positioned higher than the floor portion 18.
The rear seat 10 includes a seat cushion 12 that constitutes a seat surface, a seat back 14 that can be tilted at the rear end of the seat cushion 12, and support legs 16 that support the seat cushion 12 on a floor portion 18.
As shown in FIG. 1, the rear seat 10 has a seat cushion 12 disposed on a deck portion 20 higher than the floor portion 18 and a seat back 14 is raised so that a passenger can be seated (A 3) and a storage state (B) in which the seat back 14 is folded on the seat cushion 12 and stored on the floor 18 in front of the deck 20 as shown in FIG. By placing the rear seat 10 in the stowed state (B), a large cargo space can be secured.

The detailed structure will be described below.
The seat cushion 12 constitutes a seat part for an occupant to sit on, and is normally placed on the upper part of the deck part 42 in the use state (A).
A support leg 16 connected to the floor portion 18 is connected to the lower portion of the seat cushion 12, and the seat cushion 12 is supported on the floor portion 18 by the support leg 16. The seat cushion 12 includes a latch mechanism 36 that is engaged with a striker 34 provided in the deck portion 20, and is fixed to the deck portion 20 by the latch mechanism 36.
In the use state (A), the seat back 14 is in an upright state extending in the vertical direction. The seat back 14 includes a reclining mechanism, and can recline back and forth with respect to the seat cushion 12 and can be folded in a state of being stacked on the seat cushion 12.
The latch mechanism 36 of the seat cushion 12 is configured to release the engagement with the striker 34 when the seat back 14 is folded onto the seat cushion 12. Further, a strap 44 for releasing the lock of a lock mechanism 38, which will be described later, is provided on the back surface of the seat cushion so that it can be pulled out.

One end of the support leg 16 is connected to a bracket 22 provided on the floor portion 18 via a support shaft 16A so as to be able to rotate back and forth, and the other end of the support leg 16 is connected to a bracket 23 on the lower surface of the seat cushion 12 with a support shaft 16B. It is connected via a via so as to be pivotable and swingable.
That is, the support leg 16 is configured to be swingable in the front-rear direction about the support shaft 16A, and is configured to stand in the use state (A) and to be laid forward in the storage state (B). Has been. The support leg 16 is locked to the seat cushion 12 side by a lock mechanism 38 to be described later in the use state (A) and cannot be rotated with respect to the seat cushion 12. The lock mechanism 38 is released by pulling the strap 44.

Next, the movement of each member of the rear seat 10 in the use state (A), the storage state (B), and the moved state will be described with reference to FIGS. 1 to 3.
As shown in FIG. 1, when the support leg 16 is erected, the seat cushion 12 is disposed on the upper portion of the deck portion 20, and the seat back 14 is erected, the rear seat 10 is brought into a use state (A).
In the use state (A), the seat cushion 12 is fixed to the deck portion 20 by the latch mechanism 36 being engaged with the striker 34 of the deck portion 20, and the rear seat 10 is not movable.
Further, as shown in FIG. 4, a lock lever 1604 swingably provided on the support leg 16 via a support shaft 1602 is provided on a lock pin 1206 provided on a frame 1202 of the seat cushion 12 via a bracket 1204. The angle between the support leg 16 and the frame 1202 is locked. That is, when the lock mechanism 38 is locked, the rear seat 10 cannot be brought into the storage state (B).
In the present embodiment, the lock pin 1206 and the lock lever 1604 constitute a lock mechanism 38 that locks the use state (A) of the seat. The lock mechanism 38 is not limited to the configuration using the lock pin 1206 and the lock lever 1604 described above, and various conventionally known configurations can be used. Furthermore, in the present invention, the lock mechanism may be a latch mechanism 36 and a striker 34 that engage the seat cushion 12 with the deck portion 20. In short, the lock mechanism may be a mechanism that locks various states of the rear seat 10. That's fine.

Next, when the reclining mechanism is operated and the seat back 14 is tilted onto the seat cushion 12, the latch mechanism 36 is disengaged in conjunction with the movement of the seat back 14 and is released from the striker 34. Although not shown, a spring member that urges the support leg 16 forward is provided at the connecting portion of the support leg 16 with the bracket 22, and when the engagement of the latch mechanism 36 is released, the rear seat 10 is slightly lifted from the deck portion 20 and can be moved forward.
When the strap 44 is pulled up, the lock mechanism 38 is released, and the support leg 16 is free. Further, when the rear seat 10 is lifted and moved forward while holding the strap, as shown in FIG. 3, the support leg 16 is swung forward about the support shaft 16A, and the rear seat 10 is moved from the deck portion 20 to the floor portion. 18 is moved upward.
Then, when the rear seat 10 is lowered from the state of FIG. 3, the support leg 16 is laid forward and below the seat cushion 12 as shown in FIG. 2, and the rear seat 10 is moved onto the floor portion 18. The storage state (B) is entered.
In the stored state (B), the front portion of the seat cushion 12 is supported by the cover 32 coming into contact with the floor portion 18, and the fitting 28 of the frame 1202 of the seat cushion 12 is brought into contact with the fitting 24 of the bracket 22. The rear of 12 is supported.

Next, a release mechanism for releasing the lock mechanism 38 will be described.
FIG. 4 shows a configuration in the vicinity of the lock mechanism 38, and FIGS. 5 to 7 show a detailed configuration of the release mechanism 40.
As shown in FIG. 4, the lock lever 1604 provided on the support leg 16 is urged in a direction to always engage with the lock pin 1206 by a torsion spring (not shown) wound around the support shaft 1602. Indicates a stopper pin.
The lock pin 1206 is engaged by the lock lever 1604 by the release mechanism 40.
As shown in FIGS. 5 to 7, the release mechanism 40 includes a cable 42, a strap 44, a connector 46, a guide mechanism 48, and a strap moving direction conversion mechanism 50.

The cable 42 has one end in the longitudinal direction connected to the lock mechanism 38 and the other end in the longitudinal direction arranged on the seat back 14 side.
The cable 42 includes a cable outer 4202 and a cable inner 4204. As shown in FIG. 4, one end of the cable outer 4202 is attached to the frame 1202 of the seat cushion 12 on the lock mechanism 38 side. One end of the cable inner 4204 exposed from the cable is connected to the lock lever 1604.
On the seat back 14 side, as shown in FIGS. 5 to 7, the other end of the cable outer 4202 is attached via the bracket 52, and the cable inner 4204 exposed from the other end of the cable outer 4202 is the seat back. 14, and the other end of the cable inner 4204 is connected to the connector 46.
A frame member 54 made of a pipe frame and extending in the vehicle width direction is provided below the seat back 14, and the bracket 52 is disposed below the frame member 54.

The connection tool 46 is a member for connecting the cable 42 and the strap 44. As shown in FIG. 6, the first rod portion 4602 and the second rod are formed by bending the rod material and extending in parallel with each other. Part 4604 (hanging member).
The other end of the cable inner 4204 is connected to the center in the extending direction of the first rod portion 4602.
On the other hand, the strap 44 is passed through the gap between the first rod portion 4602 and the second rod portion 4604 and is slidably hooked on the second rod portion 4604.
Although not shown, the second rod portion 4604 is provided with a cylindrical collar that is rotatable around the second rod portion 4604 so that the strap 44 can slide smoothly.

The guide mechanism 48 guides the connector 46 so as to be movable toward and away from the frame member 54, and is constituted by a bracket 52 in the present embodiment.
As shown in FIGS. 5 and 6, the bracket 52 is provided below the frame member 54.
The brackets 52 are positioned at both ends in the extending direction of the first rod portion 4602 and the second rod portion 4604, and the height of the seat back 14 along the back surface of the seat back 14 in a direction approaching and separating from the frame member 54. A pair of side plates 5202 extending in the direction, a bottom plate 5204 connecting the lower ends of the side plates 5202, and a back plate 5206 protruding from the rear edges of the pair of side plates 5202 are provided. The pair of side plates 5202 prevents movement of the coupling tool 46 by a predetermined amount or more in the extending direction of the first rod portion 4602 and the second rod portion 4604, and the back plate 5206 prevents rotation of the coupling tool 46. The connector 46 is designed to be able to move smoothly in the direction of separating and approaching the frame member 54.
The other end of the cable outer 4202 is attached to the bottom plate 5204, and the connector 46 can move in a direction in which the frame member 54 moves away from and close to the frame member 54 while being prevented from rotating by the back plate 5206. It is arranged.

  As shown in FIG. 5, the strap 44 is provided on the back surface of the seat back 14 so that it can be pulled out. Specifically, the strap 44 is provided so as to be able to be pulled out from the opening 1404 of the skin 1402 on the back surface of the seat back 14. Reference numeral 4402 in the figure is a loop portion for facilitating gripping of the strap 44.

As shown in FIGS. 5 to 7, a guide rod (guide member) 56 and a mounting rod (attachment member) 58 are provided above the frame member 54.
The guide rod 56 is provided in the vicinity of the opening 1404 of the skin 1402, and the attachment rod 58 is provided in front of the guide rod 56 and above the guide rod 56.
Then, the strap 44 is hooked on the upper surface of the guide rod 56 from the opening 1404, and the routing direction is changed to the lower side in the height direction of the seat back 14, and then the connecting tool positioned below the seat back 14 in the height direction 46 is hung on the lower surface of the second rod portion 4604 and folded upward in the height direction of the seat back 14, and arranged so that the end portion is attached to the attachment rod 58 through the rear surface of the frame member 54. ing.

As a result, when the strap 44 is pulled out, the connector 46 is moved along the pair of side plates 5202 of the guide mechanism 48 in the height direction of the seat back 14, that is, in the direction approaching the frame member 54. The cable inner 4204 is pulled upward.
That is, in this embodiment, the guide rod 56, the mounting rod 58, and the second rod portion 4604 of the connector 46 change the direction of movement of the strap 44 by pulling out the strap 44 inside the seat back 14, and thereby the strap. A strap moving direction changing mechanism 50 is configured to move the connector 46 in a direction approaching the frame member 54 by pulling out 44. The strap moving direction conversion mechanism 50 can be configured by attaching the end of the strap 44 to the second rod portion 4604, and various configurations of the strap moving direction conversion mechanism 50 are possible. It is not limited to the configuration. In the present invention, the strap 44 connected to the connection tool 46 includes the case where the strap 44 is hooked on the connection tool 46 as in the embodiment and the strap 44 attached to the connection tool 46. Including both cases.

Further, the pull-out limit position of the strap 44 is determined by the contact of the connector 46 with the frame member 54 as shown in FIGS. That is, when the strap 44 is pulled out by a predetermined amount, the lock mechanism 38 is unlocked, the connecting tool 46 is brought into contact with the frame member 54, and the strap 44 is supported by the frame member 54.
Therefore, the cable inner 4204 is not pulled more than necessary, and when the strap 44 is further pulled from the state in which the connector 46 is in contact with the frame member 54, the load is transmitted through the connector 46. It is the composition concerning. Further, since the end of the strap 44 is attached to the attachment rod 58, the load when the strap 44 is pulled is also distributed to the attachment rod 58.
Further, in the present embodiment, since the strap 44 is wound as described above, when the strap 44 is pulled out, the connecting tool 46 is moved by a half stroke of the movement stroke of the strap 44, and with a small force. The locked state (A) of the rear seat 10 can be released, which is advantageous in improving operability.

  Therefore, as shown in FIGS. 5 and 6, when the strap 44 is pulled out with the loop portion 4402 in the usage state (A) of the rear seat 10, the coupling tool 46 is raised, thereby pulling out the cable inner 4204 and locking it. The lever 1604 is disengaged from the lock pin 1206, and the lock mechanism 38 is unlocked when the rear seat 10 is in use (A). Actually, the reclining mechanism is operated, the seat back 14 is tilted onto the seat cushion 12, the latch mechanism 36 of the seat cushion 12 is released, and then the strap 44 is pulled out. Specifically, when the seatback 14 is folded over the seat cushion 12 and folded, the latch mechanism 36 is interlocked and the seatback 14 is maintained in the folded state by the reclining mechanism. Here, when the strap 44 is gripped and pulled upward, the lock mechanism 38 is unlocked. When the strap 44 is further pulled upward, the connecting member 46 is brought into contact with the frame member 54 and the rear seat 10 is lifted, and can be moved from the use state (A) to the storage state (B).

As described above, according to the present embodiment, when the loop portion 4402 is pulled out in the usage state (A) of the rear seat 10, the lock in the usage state (A) of the rear seat 10 is released, and the The two-rod portion 4604 contacts the frame member 54.
That is, even if an excessive force is applied to the strap 44 to release the lock of the rear seat 10 in the use state (A), the second rod portion 4604 of the connector 46 comes into contact with the frame member 54 so that the strap 44 is pulled out. Since the limit position is determined, only the force necessary for releasing the lock mechanism 38 is applied to the cable inner 4204, and all the force is received by the frame member 54 via the connector 46.
Accordingly, excessive force does not act on the cable inner 4204 and the lock mechanism 38, which is advantageous in enhancing the durability of the cable 42 and the lock mechanism 38.

Further, when the rear seat 10 is moved from the storage state (B) to the use state (A), the rear seat 10 can be lifted by holding the loop portion 4402 of the strap 44, and the rear seat 10 can be lifted from the storage state (B) to the use state. This is advantageous in improving the operability when moving to (A).
That is, even if an excessive force is applied to the strap 44 to lift the rear seat 10, the second rod portion 4604 of the connector 46 abuts against the frame member 54, so that all this force is transmitted through the connector 46. It will be received at.
Therefore, the strap 44 for unlocking the rear seat 10 in the use state (A) can be used as an operation member for lifting the rear seat 10 in the storage state (B). Since the operation of lifting and moving the rear seat 10 can be performed by a series of operations while holding the strap 44, the operation when moving the rear seat 10 between the use state (A) and the storage state (B) becomes easy and the operability is improved. Can be improved.
In addition, since the connecting tool 46 moves with a half stroke of the moving stroke of the strap 44, the strap 44 is pulled out more until the connecting tool 46 comes into contact with the frame member 54. Therefore, when the rear seat 10 is moved from the storage state (B) to the use state (A) by pulling the strap 44, the loop portion 4402 is closer to the body, so that the rear seat 10 in the storage state can be lifted more easily. This is advantageous in improving the operability when moving between the use state (A) and the storage state (B).

10 Rear seat (seat)
12 Seat cushion 14 Seat back 18 Floor 20 Deck portion 38 Lock mechanism 40 Release mechanism 42 Cable 44 Strap 46 Connecting tool 48 Guide mechanism 50 Strap moving direction converting mechanism 54 Frame member (pipe frame)

Claims (5)

It is placed on the rear deck part that is higher than the front floor part that constitutes the floor of the vehicle and can be seated by the occupant, and the front floor is folded on the seat cushion. A seat movable to a storage state stored on the part;
A lock mechanism for locking the use state or the storage state of the seat;
A release mechanism for releasing the lock by the lock mechanism;
A vehicle seat device comprising:
The release mechanism is
One end of the longitudinal direction is connected to the lock mechanism, the other end is a cable disposed on the seat back side, and
A connector connected to the end of the cable on the seat back side;
A strap that is provided so that it can be pulled out from the back of the seat back, and is connected to the connector inside the seat back;
Equipped with a strap moving direction converting mechanism for moving the connector in a direction toward the frame member of the seat back in the direction of cabling in drawer converted the strap of the strap at the inside of the seat back,
By pulling out the strap, the connector is moved in a direction approaching the frame member and the cable is pulled to unlock the lock mechanism,
When the strap is pulled out more than a predetermined amount, the connecting tool is brought into contact with the frame member and the amount of the strap pulled out is regulated.
A vehicle seat device. The strap moving direction changing mechanism is
A guide member disposed in the vicinity of the opening from which the strap is pulled out, and the strap being hooked to change the direction of routing of the strap;
A hooked member to which the provided connector, the strap is folded back into the guide member side is hung,
An attachment member to which the end of the folded strap is attached;
The vehicle seat device according to claim 1, further comprising: The frame member is a frame which extends in the lateral width direction of the seat back,
The direction in which the connector approaches the frame member is above the seat back in the height direction,
The strap is hung on the guide member is converted into the height direction below the seat back, the hung member of the connector, are routed so as to be folded back in the height direction above the seat back,
The vehicle seat device according to claim 2. The strap moving direction changing mechanism moves the coupling tool with a stroke smaller than the moving stroke of the strap.
The vehicular seat device according to any one of claims 1 to 3 characterized by things. The release mechanism further includes a guide mechanism that guides the connector so as to be movable away from and close to the frame member.
The vehicle seat device according to any one of claims 1 to 4, wherein the vehicle seat device is provided .

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