JP6449974B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat capable of storing a seat cushion and a seat back in a storage position formed on a vehicle body floor by rotating a rotation link connected to the seat cushion. .

Conventionally, a vehicle seat that can store a seat cushion and a seat back constituting a seat body in a storage position formed on a vehicle body floor is already known, and among these, a seat corresponding to a rear seat of the vehicle is known. Thus, there is a vehicle seat that can be stowed rearward and stored in a recess provided at the rear of the seat.
As a mechanism for storing the seat body, there is known a rotation link that connects the seat cushion and the vehicle body floor and rotates with respect to the vehicle body floor. The seat cushion and the seat back can be moved to the storage position by the rotation of the pivot link (see, for example, Patent Documents 1 and 2).

  In the vehicle seat described in Patent Document 1, as shown in FIG. 15, two of the above-described rotation links 50 are provided on the front side and two on the rear side of the seat cushion. The link 50 rotates with respect to the vehicle body floor while being synchronized.

The vehicle seat described in Patent Document 2 includes a leg member connected to the front portion of the seat cushion, and a link member connected to the rear portion of the seat cushion so as to be rotatable with respect to the vehicle body floor. When the seat is retracted, the seat back is folded to the seat cushion side, and the hook member provided at the lower end of the leg member is released from the U-shaped striker fixed to the vehicle body floor. The seat body can be stored in the storage recess by rotating the link member toward the rear of the seat with respect to the vehicle body floor.
Further, when the seat is in the stored state, a hook member separately provided on the leg member is configured to engage with a striker separately fixed at the storage position.

Japanese Patent No. 4019456 Japanese Patent No. 3979460

  Here, in the retractable vehicle seat as in Patent Document 1, usually, a plurality of the rotation links 50 are provided. Of course, these rotation links 50 do not interfere with each other during rotation. Need to be placed in position. On the other hand, it is desirable that the vehicle seat can be stored more compactly. However, depending on the layout of the plurality of rotating links 50, a wider installation space must be secured, and it becomes difficult to achieve a compact vehicle seat in the stored state.

Further, when arranging the plurality of rotation links 50, it is necessary to consider the balance. For example, the support rigidity by the rotation links 50 is balanced between one end side and the other end side in the width direction of the vehicle seat. It is desirable that
Further, with respect to the arrangement positions of the plurality of rotation links 50, the degree of freedom of arrangement can be ensured while reducing the size of the vehicle seat in the stored state, and further, interference between the rotation links 50 or rotation links. It is necessary to set the position to suppress the interference between 50 and other members.

By the way, as in Patent Document 2, a seat that can store the seat main body in the storage position is configured to move between the seatable state and the stored state by moving the seat main body in the front-rear direction, and is provided on the leg member. The hook member is hooked in the front-rear direction with respect to the striker to be engaged or disengaged.
However, in the above configuration, when the leg member is re-engaged with the striker in order to return the seat from the stored state to the seatable state, the hook member may be hooked on the striker because the leg member swings back and forth. It was difficult.
Therefore, a vehicle seat having a simple structure and improved operability for engaging the leg member with the striker has been desired.

  Further, in the seat of Patent Document 2, when the seat body is stored, the engagement hook provided separately on the leg member is configured to engage with the striker on the storage floor, so that stability during seat storage is achieved. However, there has been a demand for a vehicle seat that has a simple structure and further improved stability during seat storage.

Then, this invention is made | formed in view of said problem, The objective is to provide the vehicle seat which can make a stowed state more compact, suppressing the interference of rotation links. is there.
Another object of the present invention is to provide a vehicle seat in which a plurality of rotation links are arranged in a balanced manner so that the support rigidity by the rotation links is balanced.
Another object of the present invention is to secure the degree of freedom of the arrangement of the rotation links while reducing the size of the vehicle seat in the stored state, and to prevent interference between the rotation links and the rotation links and other members. It is providing the vehicle seat which can suppress interference between these.
Another object of the present invention is to provide a vehicle seat that has a simple structure and can be easily switched between a seatable state and a stored state.
Another object of the present invention is to provide a vehicle seat having a simple structure and improved stability during seat storage.

According to the vehicle seat of the present invention, the subject is a vehicle seat that can be stored in a storage position formed on a vehicle body floor, and is connected to a seat cushion included in the vehicle seat, and the seat cushion is to move to the storage position, the pivot link that pivots via the pivoting shaft mounted to the vehicle floor, so that the seat cushion is moved to the storage position along a predetermined path, A guide link that rotates through a guide link rotation shaft to guide the seat cushion, and is provided at a position aligned with the guide link in the front-rear direction of the vehicle seat, while urging the seat cushion, It includes a biasing member that rotates relative to the vehicle floor with the guide link via a pivot shaft for the urging member, and the width direction of the vehicle seat Kicking outer end of the guide link for rotation axis, an outer end portion of the pivot shaft in the width direction, is disposed between the outer end portion of the biasing member for rotation axis in the width direction Is solved.
In the vehicle seat described above, the outer end portion of the guide link rotation shaft is disposed between the outer end portion of the rotation shaft and the outer end portion of the biasing member rotation shaft. interference link between the dynamic is minimized. Further, in the above-described vehicle seat, by shifting the position of the links that one pivoted position of the other rotary link, it is possible to place the pivot link by effectively utilizing the interior space, housed state The vehicle seat can be made more compact.

Further, in the above vehicle seat, an upper end portion of the guide link is connected to the seat cushion so as to be rotatable via a connecting shaft, and the connecting shaft and the guide link for the guide link are connected. It is preferable that the portions to which the rotation shafts are respectively attached are arranged between the rotation link and the urging member in the sheet width direction .

Further, in the above-described vehicle seat, of the guide link, the portion where the connecting shaft is attached, when the biasing member in the sheet width direction that are located in different positions, is more preferable. With this configuration, it is possible to suppress interference associated with the rotation of the guide link and the biasing member when the vehicle seat is stored.

In the above vehicle seat, the pivot link includes a first link and a second link disposed at a position closer to the guide link in the seat width direction than the first link, and the guide The link is attached to a shaft fixing member provided on the vehicle body floor via the guide link rotation shaft, and the shaft fixing member overlaps at least a part of the second link in the seat width direction. It is preferable that they are arranged in the above .
Further, in the above vehicle seat, the pivot link includes a first link and a second link disposed at a position closer to the guide link in the seat width direction than the first link. 2 links to the vehicle body floor, attached via an extending bracket extending in the vertical direction, the guide link, and the extending bracket in the sheet width direction when that are located in different positions, More preferred. With such a configuration, it is possible to suppress interference associated with the rotation of the second link and the guide link when the vehicle seat is stored.
Furthermore, in the above vehicle seat, the pivot link includes a first link and a second link disposed at a position closer to the guide link in the seat width direction than the first link, Guide links are formed to be shorter than the first link in the seat front-rear direction, and, if that is formed so that the width becomes narrower than the first link in the sheet width direction, it is even more preferred.

In the above vehicle seat, the guide link includes a main body portion to which at least one of the connecting shaft and the guide link rotation shaft is attached, and the rotation link side from the main body portion in the seat width direction. If that had, and the extending portion extending in the biasing member side still is more preferred.

Further, in the above vehicle seat, the first link has a front portion having a substantially C-shaped cross section and a cross section having a substantially C-shaped cross section, and is formed to be narrower than the front portion. A rear portion fitted through the opening of the front portion with respect to the portion, and the extending portion of the guide link is disposed at a position on the rear portion side in the seat front-rear direction . Is preferred.
If it is the above structure, the side where the width | variety is narrower than the wide side among the 1st links and the intensity | strength is weak can be reinforced with a guide link.

The vehicle seat includes a seat back that is pivotably attached to the seat cushion via a seat back pivot shaft, and the guide link pivot shaft is seated by a seated person. when the use state, that are located further forward than the seat-back times shaft in the sheet longitudinal direction, which is preferable.
If it is the above structure, it can suppress making a guide link project back rather than the rotating shaft of a seat back in a seating state.

The vehicle seat includes a support member that is disposed between the vehicle body floor and the seat cushion and supports the seat cushion. The support member is coupled to the seat cushion in a rotatable state. , It is pivoted so as to be folded toward the seat cushion when in the stowed state, and is connected to the pivot link via a relay member, and the guide link is in the seat front-rear direction when in the used state. When said relay member that are located in different positions, is more preferable.
If it is the above structure, it will become easy to visually confirm attachment of the relay member from a side view.

According to the vehicle dual sheet of the present invention, while minimizing interference with the link between the pivots, it can be more compact vehicle seat in the accommodated state.
According to the vehicle dual sheet of the present invention, it is possible to suppress the interference caused by each rotation of the guide link and the biasing member during storage of the vehicle seat.
According to the vehicle dual sheet of the present invention, it is possible to suppress the interference caused by each rotation of the second link and the guide link during storage of the vehicle seat.
According to the vehicle dual sheet of the present invention, it can be miniaturized guide links.
According to the vehicle dual sheet of the present invention, in the first link, it can reinforce the side that is weakened strength narrower than the wide side in the guide links.
According to the vehicle dual sheet of the present invention, in a seating state, it can be suppressed to protrude guide link rearward of the rotation axis of the seat back.
According to the vehicle dual sheet of the present invention, easily visually confirm the attachment of the relay member from a side view.

It is an external view of the vehicle seat of the present invention. It is a figure which shows a mode that the vehicle seat of this invention is accommodated (the 1). It is a figure which shows a mode that the vehicle seat of this invention is accommodated (the 2). It is a figure which shows a mode that the vehicle seat of this invention is accommodated (the 3). It is a figure which shows a mode that the vehicle seat of this invention is accommodated (the 4). It is a schematic diagram for demonstrating a motion of a sheet | seat accommodation mechanism (the 1). It is a schematic diagram for demonstrating a motion of a sheet | seat accommodation mechanism (the 2). FIG. 10 is a schematic diagram for explaining the movement of the sheet storage mechanism (part 3); It is a figure when the internal mechanism of the vehicle seat of this invention is seen from back. It is a perspective view of a sheet storage mechanism. It is a side view of a sheet storage mechanism. It is a rear view of a sheet storage mechanism. It is a schematic cross section of each rotation link. It is a figure which shows the modification of a sheet | seat accommodation mechanism, and is a figure corresponding to FIG. It is a side view which shows the structure of the conventional vehicle seat. 1 is a schematic perspective view of a vehicle seat according to the present invention. It is a schematic side view of a seat frame that is a skeleton of a vehicle seat. It is a schematic perspective view of a seat frame. It is explanatory drawing which shows the state which the 1st locking device locked. It is explanatory drawing which shows the state which the 1st locking device unlock | released and became impossible to lock. It is explanatory drawing which shows the state in which the 1st locking device became lockable. It is explanatory drawing which shows the state which the 1st locking device relocked. It is a schematic plan view of a striker. (A) is explanatory drawing which shows the engaging possible position which a 2nd locking device can lock, (b) is explanatory drawing which shows the engaging impossible position which a 2nd locking device cannot lock. It is a schematic side view of a vehicle seat, and is a diagram for explaining an operation of moving from a seatable state to a stored state (part 1). It is a figure explaining the operation | movement which moves to a storage state from a seating possible state (the 2). It is a figure explaining the operation | movement which returns to a seating possible state from an accommodation state (the 1). It is a figure explaining the operation | movement which returns to a seating possible state from an accommodation state (the 2).

<< Schematic Configuration of Vehicle Seat According to One Embodiment of the Present Invention >>
Hereinafter, a vehicle seat according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings.
In the following description, the front-rear direction means the front-rear direction (full length direction) of the vehicle, and corresponds to the front-rear direction of the vehicle seat. The width direction means the left-right direction (horizontal width direction) of the vehicle and corresponds to the width direction of the vehicle seat.
Further, the positions, postures, and the like of the respective members described below are the positions, postures, and the like when the vehicle seat is in a use state, that is, a seated state, unless otherwise specified.

  A vehicle seat (hereinafter simply referred to as a seat) S according to the present embodiment constitutes a rear seat of the vehicle. In the present embodiment, two seats are arranged side by side in the width direction as shown in FIG. The two sheets S arranged in the width direction have different widths (lengths in the width direction). In the present embodiment, the width ratio is set to about 4: 6. However, the present invention is not limited to this, and the width ratio can be arbitrarily set, and may be, for example, 5: 5.

  The two seats S arranged in the width direction are each provided with a seating portion S1, and the seating portion S1 includes a seat cushion 1 on which an occupant is seated, a seat back 2 that supports the occupant from the back side, and a headrest 3 that supports the occupant's head. Become. Further, as shown in FIG. 2 and the like, a recessed storage space T1 formed in the vehicle body floor T is provided behind each seat S. The interior of the storage space T1 corresponds to the storage position, and each sheet S is configured to be stored in the storage space T1.

  The storage operation of the seat S will be outlined. When the seat S is in the state before storage, that is, in the seatable state shown in FIG. 2, when the occupant pulls the operation strap (not shown), the seat back 2 tilts forward. The seating portion S1 is folded. After that, the folded seat S1 moves in the direction of sinking backward as shown in FIGS. Finally, as shown in FIG. 5, the entire sheet S is stored in the storage space T1.

  The seat S includes a seat storage mechanism 4 below the seating portion S1 in order to realize the above storage operation. The seat storage mechanism 4 is a mechanism for moving the seat S1 toward the storage space T1, and includes a foot link 10 and a rotation link 20 illustrated in FIG. 2 as main components.

  The foot link 10 corresponds to a support member, is disposed between the vehicle body floor T and the seat cushion 1, and supports the seat portion S <b> 1 including the seat cushion 1. The foot link 10 includes a locking mechanism 10b illustrated in FIG. 12 and the like at a lower end portion, and engages with a striker T2 illustrated in FIG. Since the foot link 10 is engaged with the striker T2, the seat portion S1 is locked in a state where it is positioned at the seatable position. On the contrary, when the engagement state between the foot link 10 and the striker T2 is released, the entire seat S including the seating portion S1 becomes movable and can move toward the storage space T1.

The engagement state between the foot link 10 and the striker T2 is released by a lock release mechanism (not shown), and the lock release mechanism is more specifically configured when the seat back 2 is in a predetermined posture. It operates when it tilts forward and reaches a predetermined position.
The configuration of the foot link 10 will be described in detail later.

The pivot link 20 is a long member, and one end (upper end) in the extending direction thereof is the seat cushion 1, more specifically, the seat cushion frame illustrated in FIG. It is connected to 1a. Further, the other end portion (lower end portion) in the extending direction of the rotation link 20 is pivotally supported with respect to the vehicle body floor T. Then, in a state where the engagement state between the foot link 10 and the striker T2 is released, the seating portion S1 moves toward the storage space T1 when the rotation link 20 is rotated to tilt backward. . That is, the rotation link 20 rotates with respect to the vehicle body floor T in order to move the seating portion S1 between the seatable position and the storage position.
The configuration of the rotation link 20 will be described in detail later.

Hereinafter, an operation example of the sheet storage mechanism 4 will be outlined with reference to FIGS. 6 to 8 schematically show the respective parts of the seat storage mechanism 4 and the seating part S1 in a straight line. Also, in each of FIGS. 6 to 8, a black circle indicates the center of rotation.
First, when the occupant pulls an operation strap (not shown) while the seat S is in a seatable state, the seat back 2 tilts forward as described above. That is, the seat back 2 rotates relative to the seat cushion 1 in the direction indicated by the symbol d1 in FIG.

  When the angle formed by the seat back 2 and the seat cushion 1 (the angle indicated by the symbol α in FIG. 6) is reduced to a predetermined angle, a lock release mechanism (not shown) operates in conjunction with this, The engagement state between the striker T2 attached on the floor T and the foot link 10 is released. At this time, as shown in FIG. 7, the front end portion of the seat cushion 1 is lifted somewhat upward by a biasing force of a piston damper 24 described later.

  Further, when the engagement state between the striker T2 and the foot link 10 is released, as described above, the seat portion S1 becomes movable, and when the rotary link 20 tilts backward in this state, the seat in the folded state is obtained. The part S1 moves toward the storage space T1. That is, when the pivot link 20 pivots in the direction indicated by the symbol d2 in FIG. 7 with respect to the vehicle body floor T, the seat portion S1 descends while turning back.

  Further, the seating part S1 itself can rotate in the direction indicated by the symbol d3 with respect to the rotation link 20. As a result, when the seat portion S1 descends while turning back, the angle formed by the seat cushion 1 and the rotation link 20 (the angle indicated by symbol β in FIG. 7) is simultaneously reduced. Move.

  Further, the rotation link 20 and the foot link 10 are connected by a relay member 25 illustrated in FIGS. Since the relay member 25 is interposed between the rotation link 20 and the foot link 10, the rotation of the rotation link 20 is transmitted to the foot link 10. As a result, the foot link 10 turns so as to be folded when the turning link 20 tilts backward. That is, the foot link 10 is rotated in the direction indicated by the symbol d4 in FIG. 7 in conjunction with the backward tilting operation of the rotation link 20, and the foot link 10 and the seat cushion 1 are moved as the rotation operation proceeds. Is smaller (the angle indicated by the symbol γ in FIG. 7).

  Then, when the pivoting link 20 finally tilts backward until it reaches a predetermined position (specifically, the position of the pivoting link 20 illustrated in FIG. 8), the folded seating portion S1 and The foot link 10 is stored in the storage space T1 together with the rotation link 20. At this time, the foot link 10 and the rotation link 20 are in a state of being accommodated inside the seat cushion 1 (more specifically, the seat cushion frame 1a) in the width direction.

<Configuration of sheet storage mechanism>
Next, the configuration of the sheet storage mechanism 4 will be described in detail with reference to FIGS.
As shown in FIG. 9, the seat storage mechanism 4 is provided individually for each of the two seats S constituting the rear seat and having different widths. Here, the sheet storage mechanism 4 provided on the sheet S having a short lateral width and the sheet storage mechanism 4 provided on the sheet S having a long lateral width have some differences such as the number of foot links 10 being different. The general configuration is the same between both mechanisms. Therefore, hereinafter, only the configuration of the sheet storage mechanism 4 for the sheet S having a short width will be described.

  As shown in FIGS. 9 to 12, the sheet storage mechanism 4 includes a foot link 10 and three rotation links 20. More specifically, the sheet storage mechanism 4 includes an inner link 21, an outer link 22, and a guide link 23 as the three rotation links 20. Further, the sheet storage mechanism 4 includes a piston damper 24 as an urging member, as shown in FIGS.

  The foot link 10 is made of a plate-shaped steel material, and a flange portion 10a is formed by bending both ends thereof to ensure rigidity. As shown in FIG. 12, the foot link 10 includes a lock mechanism 10 b at the lower end and engages with a striker T <b> 2 attached to the vehicle body floor T. The foot link 10 is connected to the seat cushion 1 in a rotatable state.

  More specifically, as shown in FIG. 11, a fixing bracket 1b for fixing the foot link rotating shaft 10c is welded to the front end portion of the seat cushion 1 (strictly speaking, the seat cushion frame 1a). Attached. An upper end portion of the foot link 10 is supported on the foot link rotating shaft 10c fixed to the fixed bracket 1b. Accordingly, the foot link 10 can go back and forth between the standing position (the position of the foot link 10 illustrated in FIG. 6) and the folding position (the position of the foot link 10 illustrated in FIG. 8).

  A coil spring (not shown) is interposed on the foot link rotating shaft 10c. One end of the coil spring is fastened to the rear surface of the foot link 10, and the other end of the coil spring is a seat cushion frame. It is fastened to 1a. Thereby, the foot link 10 is urged | biased by a coil spring so that it may go to a standing position.

  On the other hand, one end of the above-described relay member 25 is attached to the foot link 10 so that driving force is transmitted from the rotation link 20 (more specifically, the inner link 21 or the outer link 22). ing. More specifically, when the pivot link 20 pivots in a backward tilting direction, the relay member 25 is utilized from the upper end portion of the foot link 10, strictly speaking, the foot link pivot shaft 10 c by utilizing the pivot operation. Also, the portion located above is pressed forward. As a result, the foot link 10 rotates so as to be folded against the urging force of the coil spring.

  As shown in FIG. 9, one foot link 10 is attached to a substantially central portion in the width direction on the sheet S having a small lateral width, whereas the sheet S having a large width direction has an outer side in the width direction and Two foot links 10 are attached, one on the inner side.

  The inner link 21 corresponds to a first link, and supports the seat portion S1 when the seat S is in use, and moves the seat portion S1 into the storage space T1 when the seat S is stored. The outer link 22 corresponds to a second link, and moves the seat portion S1 into the storage space T1 in cooperation with the inner link 21 when the seat S is stored. Here, the inner link 21 is located on the inner side in the width direction, and the outer link 22 is located on the outer side in the width direction. The outer side in the width direction is the side closer to the side wall of the vehicle on which the seat S is mounted (strictly speaking, the side wall located closer to the seat S), and the inner side in the width direction is The side away from the side wall of the vehicle, more specifically, the side close to the adjacent seat S.

  The guide link 23 corresponds to a third link, and guides the seat cushion 1 so that the seat cushion 1 moves to the storage space T1 along a predetermined path when the seat S is stored.

The inner link 21, the outer link 22, and the guide link 23 are all connected to the rear end portion of the seat cushion 1 (strictly speaking, the seat cushion frame 1a), and are rotatably supported with respect to the vehicle body floor T. ing.
More specifically, a mounting bracket T3 is attached to the vehicle body floor T (strictly speaking, the front side wall surface of the storage space T1), and the shaft fixture 26a shown in FIGS. 10 to 12 is mounted on the mounting bracket T3. 26b are attached by welding.

  The inner link rotating shaft 21a is fixed to one of the shaft fixing tools 26a, and the lower end portion of the inner link 21 is supported by the inner link rotating shaft 21a. Further, the outer link rotating shaft 22a and the guide link rotating shaft 23a are fixed to the other shaft fixing tool 26b, and the lower end portion of the outer link 22 is supported by the outer link rotating shaft 22a, and the guide The lower end portion of the link 23 is supported by the guide link rotating shaft 23a.

As described above, each of the inner link 21, the outer link 22, and the guide link 23 rotates to tilt forward or backward about the corresponding rotation shafts 21a, 22a, 23a.
The positional relationship between the inner link rotation shaft 21a and the outer link rotation shaft 22a is designed such that the shaft centers of the rotation shafts 21a and 22a coincide in the front-rear direction and the vertical direction. On the other hand, as to the positional relationship between the outer link rotation shaft 22a and the guide link rotation shaft 23a, as shown in FIG. 11, the axis center of the outer link rotation shaft 22a is the guide link rotation shaft 23a. It is designed to be positioned forward and above the axis center.

  In addition, each of the inner link 21, the outer link 22, and the guide link 23 is connected to the seat cushion 1 so as to be rotatable with respect to the seat cushion 1. More specifically, as shown in FIGS. 10 to 12, a fixing bracket 1c for fixing the connecting shafts 21b, 22b, 23b to the rear end portion of the seat cushion 1 (strictly speaking, the seat cushion frame 1a). 1d is attached.

  A connecting shaft 21b that rotatably supports the upper end portion of the inner link 21 is fixed to one fixing bracket 1c. The other fixed bracket 1d is fixed with a connecting shaft 22b that rotatably supports the upper end portion of the outer link 22, and a connecting shaft 23b that rotatably supports the upper end portion of the guide link 23.

  As described above, each of the inner link 21, the outer link 22, and the guide link 23 is rotated relative to the seat cushion 1 by supporting the upper end portions thereof on the connecting shafts 21b, 22b, and 23b. Is possible. In other words, the seat cushion 1 is rotatable relative to the inner link 21, the outer link 22 and the guide link 23.

Next, the structure of each of the inner link 21, the outer link 22, and the guide link 23 will be described.
The inner link 21 is made of a steel material having a substantially rectangular tube shape. More specifically, the inner link 21 is formed by combining two steel plates bent into a substantially U shape. That is, the cross section of the inner link 21 (cross section intersecting with the extending direction) is a closed cross section. On the other hand, tongue-like protrusions are formed at both ends of the inner link 21 in the extending direction, and the inner link rotation shaft 21a is attached to one (lower) tongue-like protrusion, while the other (upper) A connecting shaft 21b is attached to the tongue-like projection.

  Furthermore, a lock mechanism 21c shown in FIGS. 10 and 11 is attached to the front side wall of the inner link 21. This locking mechanism 21c is for locking the seating portion S1 in the seatable position, similarly to the locking mechanism 10b provided on the foot link 10. More specifically, the lock mechanism 21c engages with a striker T4 shown in FIG. 11 attached to the front wall surface of the storage space T1 in the vehicle body floor T in order to lock the seat portion S1 at the seatable position. . The engagement state between the lock mechanism 21c and the striker T4 is released at the timing when the engagement state between the lock mechanism 10b provided on the foot link 10 and the striker T2 is released. As described above, since the lock mechanism 21c is attached to the front side wall of the inner link 21, the rigidity of the inner link 21 is increased accordingly.

  The outer link 22 is formed by bending a cylindrical metal pipe into a substantially L shape, and the long portion 22 g is provided along the inner link 21. On the other hand, the short portion 22 h of the L-shaped outer link 22 extends toward the inner link 21. And the said short part 22h is joined to the extension direction one end part (lower end part) of the inner side link 21 by welding. Thus, between the inner link 21 and the outer link 22, there is provided a connecting portion that connects the links 21, 22. The connecting portion is a part of the outer link 22, more specifically, the outer link. 22 short length portions 22h. As described above, the rigidity of the outer link 22 is improved by connecting the inner link 21 and the outer link 22 to each other. Furthermore, since the short portion 22h of the outer link 22 is used as the connecting portion, the inner link 21 and the outer link 22 can be connected without increasing the number of parts.

  As shown in FIG. 12, the outer link 22 includes an extension bracket 22i welded to the bent portion. The extension bracket 22i extends downward, and an outer link rotation shaft 22a is attached to the tip (lower end) thereof.

  The guide link 23 is made of an angle-type steel plate and is provided along the long portions 22 g of the inner link 21 and the outer link 22. The guide link 23 has lower rigidity than the inner link 21 and the outer link 22 and does not have sufficient strength to support and convey the seating portion S1. Therefore, as described above, the guide link 23 has only a function of guiding the seat portion S1 toward the storage space T1 along the correct locus when the seat S is stored.

  In this embodiment, the size (thickness) of the inner link 21 is larger than the sizes (thickness) of the outer link 22 and the guide link 23. More specifically, as shown in FIG. 13, the inner link 21 has a hollow square cross section, the outer link 22 has a hollow circular cross section, and the guide link 23 is substantially L-shaped. Having a cross-section. Here, the cross section of each rotation link 20 means a cross section of each rotation link 20 main body (part different from the end supported by the rotation shaft). In this embodiment, as shown in FIG. 13, the inner link 21 is larger than the outer link 22 and the guide link 23 in any of the length in the front-rear direction, the length in the width direction, and the secondary moment of section. ing.

  The piston damper 24 is a biasing member that applies a biasing force toward the outside in the extending direction. In the present embodiment, when the seat S is in a use state, the seat cushion 1 is moved upward in the seating portion S1. Energize to. By providing the piston damper 24, the seat cushion 1 can be satisfactorily held at a predetermined position even when a load on the seated person is applied. In order to exhibit such performance, the upper end portion of the piston damper 24 is fixed to the side wall of the seat cushion frame 1a.

  The piston damper 24 rotates in the same direction as the rotation direction of the rotation link 20 (that is, the inner link 21, the outer link 22, and the guide link 23) when the seat S is stored. Tilt. That is, the piston damper 24 rotates with respect to the vehicle body floor T together with the rotation link 20 while urging the seat cushion 1. For this reason, the lower end of the piston damper 24 is supported by a rotation shaft (not shown). The rotation shaft is fixed to a shaft fixture 26b to which the outer link rotation shaft 22a and the guide link rotation shaft 23a are fixed.

  Further, in a state in which the seat S is completely stored in the storage space T1, the piston damper 24 is in a slightly inclined position from the horizontal position, and more specifically, on the side fixed to the side wall of the seat cushion frame 1a. The end portion is positioned below the rotation axis. The piston damper 24 in such a posture urges the seat cushion frame 1a downward. Thereby, in a state where the seat S is completely stored in the storage space T1, the seat cushion 1 is urged downward by the piston damper 24, so that the storage state can be maintained well.

  Further, when the urging force by the piston damper 24 acts upward when the seat S is raised from the state stored in the storage space T1 and returned to the use state, the seat S suddenly jumps up and collides with the operator (occupant). There is a risk of it. On the other hand, in this embodiment, since the urging force of the piston damper 24 acts downward when the seat S is in the retracted state as described above, it is possible to suppress the collision between the seat S and the occupant. Become.

By the way, as described in the section of the problem to be solved by the invention, when a plurality of rotating links 20 are provided as a mechanism for moving the seating portion S1 including the seat cushion 1 to the storage position, these rotations are performed. The position of the moving link 20 needs to be a position that does not interfere with each other and a position where the seat S can be made compact in the stored state.
As for the arrangement position of the rotation links 20, it is necessary to arrange the rotation links 20 in a balanced manner so that the support rigidity by the rotation links 20 is balanced between the one end side and the other end side in the width direction of the sheet S. is there.
As for the arrangement of the rotation link 20, it is also necessary to be a position where interference between the rotation links 20 or interference between the rotation link 20 and other members can be suppressed while ensuring a degree of freedom.

Therefore, in the present embodiment, the arrangement positions of the three rotation links 20 described above are designed to satisfy the above requirements.
If it demonstrates concretely, arrangement | positioning of the rotation link 20 which concerns on this embodiment is asymmetrical seeing from the center of the width direction of the sheet | seat S, as shown in FIG.9 and FIG.12. More specifically, the three rotation links 20 are arranged at different positions in the width direction, and in the order of the guide link 23, the outer link 22, and the inner link 21 from the outer side to the inner side in the width direction. Has been placed. As described above, the rotation links 20 are arranged at positions different from each other in the width direction, whereby interference between the rotation links 20 can be suppressed.

  In particular, in this embodiment, the rotation link 20 (that is, the inner link 21) having the largest size (thickness) is arranged on the inner side in the width direction, and the other rotation links (that is, the outer link 22 and the guide link 23). Is arranged outside in the width direction. In other words, the guide link 23 is disposed at a position closer to the outer link 22 among the inner link 21 and the outer link 22 in the width direction. Thereby, it is possible to suppress the rotation link 20 from being biased and arranged on one of the outer side and the inner side in the width direction. If it demonstrates easily, in this embodiment, the guide link 23 is arrange | positioned so that it may become close to the outer link 22 among the inner link 21 with a larger size, and the outer link 22 with a smaller size. As a result, the three rotation links 20 are arranged in a balanced manner. As a result, the support rigidity by the rotation links 20 in the width direction of the sheet S is balanced.

  In this embodiment, since the two sheets S are installed side by side in the width direction, the installation space of the rotation link 20 is limited on the inner side in the width direction of the sheet S than on the outer side in the width direction. . For this reason, about the rotation link 20 arrange | positioned inside the width direction of the sheet | seat S, it is necessary to reduce the number of installation and to make the rigidity of the rotation link 20 high correspondingly. For this reason, in the present embodiment, the two rotational links 20 (that is, the outer link 22 and the guide link 23) are arranged on the outer side in the width direction of the sheet S, whereas the width direction of the sheet S is set. Regarding the inside, only one rotation link 20 (that is, the inside link 21) having the largest size is arranged.

  In this embodiment, as shown in FIGS. 9 and 12, the arrangement position of the inner link 21 is closer to the center in the width direction of the sheet S than the arrangement position of the outer link 22. Thereby, it becomes possible to suppress the trouble of the rotation of the inner link 21. More specifically, the size of the inner link 21 is the largest among the three rotation links 20, and when the inner link 21 is arranged on the end side of the sheet S, a device (specifically, a side position of the sheet S) The adjacent sheet S) and the inner link 21 may interfere with each other. For this reason, it is possible to suppress interference between the inner link 21 and the adjacent sheet S by bringing the inner link 21 to the center in the width direction of the sheet S.

  Furthermore, in the present embodiment, the inner link 21 and the outer link 22 are arranged at positions that sandwich the above-described foot link 10 in the width direction. In other words, the foot link 10 is located between the inner link 21 and the outer link 22 in the width direction. Thereby, when the seat S is stored, the foot link 10 can be prevented from interfering with the inner link 21 and the outer link 22 when rotating so that the foot link 10 is folded.

  In the present embodiment, as described above, the two foot links 10 are attached to the sheet S having a long lateral width. As shown in FIG. 9, one of the two foot links 10 (outside in the width direction) is between the inner link 21 and the outer link 22. About the other foot link 10 (width direction inner side), it arrange | positions between the inner side link 21 with which the sheet | seat S with a short lateral width is equipped, and the inner side link 21 with which the sheet | seat S with a large lateral width is equipped. Since the two foot links 10 are attached to the sheet S having a long lateral width as described above, the supporting state of the sheet S can be further stabilized. Furthermore, since the foot link 10 located between the inner links 21 for each sheet S is disposed at a position where interference with the inner link 21 is suppressed, there is a problem in storing each sheet S individually. It becomes difficult to become.

  In the present embodiment, the guide link 23 is arranged at a position different from the inner link 21 and the outer link 22 in the front-rear direction of the seat S. More specifically, the inner link 21 and the outer link 22 are arranged at substantially the same position in the front-rear direction. On the other hand, as shown in FIGS. 10 and 11, the guide link 23 is disposed slightly behind the two rotation links 20. With the arrangement of the guide links 23 as described above, in the present embodiment, the sheet S can be stored more compactly. That is, in the present embodiment, by shifting the arrangement position of the guide link 23 from the arrangement position of the inner link 21 and the outer link 22, the rotation link 20 can be arranged by effectively utilizing the space in the vehicle. The sheet S can be made more compact.

  Moreover, the arrangement position of the guide link 23 is an outer side in the width direction than the arrangement positions of the inner link 21 and the outer link 22, that is, a position closer to the side wall of the vehicle on which the seat S is mounted. With such a positional relationship, the arrangement position of the guide link 23 can be freely determined without being restricted by the inner link 21 or the outer link 22. Further, in a configuration in which a connecting portion (specifically, a short portion 22 h of the outer link 22) is provided between the inner link 21 and the outer link 22, the guide link 23 comes off between the links 21 and 22. Therefore, the interference between the guide link 23 and the connecting portion can be suppressed.

  Further, in the present embodiment, the piston damper 24 described above is provided near the guide link 23. More specifically, as shown in FIGS. 11 and 12, the piston damper 24 is located in front of the guide link 23 in the front-rear direction and is disposed at substantially the same position as the guide link 23 in the width direction. Yes. In other words, the piston damper 24 is provided at a position aligned with the guide link 23 in the front-rear direction.

  Due to the positional relationship as described above, when the seat S is stored, the piston damper 24 rotates with respect to the vehicle body floor T together with the guide link 23 while urging the seat cushion 1 outward in the extending direction. . As a result, the guide link 23 can smoothly move the seat portion S1 including the seat cushion 1 to the storage position while being assisted by the biasing force of the piston damper 24.

<Other embodiments>
In the above embodiment, the vehicle seat of the present invention has been mainly described. However, the above embodiment is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  In the above embodiment, the guide link 23 is arranged behind the inner link 21 and the outer link 22 in the front-rear direction of the seat S. However, the arrangement position of the guide link 23 is not limited to the rear position of the inner link 21 and the outer link 22. That is, the arrangement position of the guide link 23 may be a position where the seat S can be stored more compactly while suppressing interference between the rotation links 20, and the inner link 21 and the outer link 22 in the front-rear direction. There is no particular limitation as long as the positions are different.

  In the above embodiment, the inner link 21 is larger than the outer link 22 in any of the length in the front-rear direction, the length in the width direction, and the moment of inertia of the cross section. However, the present invention is not limited to this. It is not something. That is, the inner link 21 only needs to be larger than the outer link 22 in at least one of the length in the front-rear direction, the length in the width direction, and the moment of inertia of the cross section.

In the above-described embodiment, the connecting portion that connects the links 21 and 22 is provided between the inner link 21 and the outer link 22. Further, in the present embodiment, the connecting portion is a part of the outer link 22, more specifically, the short portion 22 h of the outer link 22. Accordingly, it is possible to secure the rigidity of the outer link 22 by connecting the inner link 21 and the outer link 22 without increasing the number of parts. In order to exhibit this effect more effectively, as shown in FIG. 14, the outer link 22 may be bent in a lateral U-shape, and the short portions 22 h formed on the upper side and the lower side may be used as connecting portions, respectively. .
That is, the first connecting portion that connects the portions on the one end side in the extending direction of each of the inner link 21 and the outer link 22, and the portions on the other end side in the extending direction of each of the inner link 21 and the outer link 22 It is good also as providing the 2nd connection part to connect. According to such a configuration, the rigidity of the outer link 22 can be further improved. The first connecting portion and the second connecting portion may be configured by an upper short portion 22h and a lower short portion 22h formed on the outer link 22.

  In the above embodiment, the number of the rotation links 20 is three, but the number of the rotation links 20 may be at least three or more. The present invention can also be applied to a vehicle seat having the same.

<< Other Embodiment of Seat with Separate Locking Mechanism at Rear End of Seat Cushion >>
Another embodiment is a vehicle seat 100 that can be accommodated on the vehicle body floor side by moving the seat cushion 102 in the front-rear direction. The vehicle seat 100 includes an attachment / detachment leg 130 between the seat cushion 102 and the vehicle body floor. An engagement hook 132 attached to the lower end protrudes and engages with the striker 137 on the vehicle floor in the left-right direction. When the seat is stored, the engagement hook 151 provided at the rear end of the seat cushion 102 is The present invention relates to an invention of a vehicle seat 100 that is engaged with a striker 154 on a storage floor.
The side on which the occupant sits with respect to the seat back 101 of the vehicle seat 100 is the front side of the seat.

The vehicle seat 100 of other embodiments is a rear seat corresponding to the rear seat of the vehicle, for example. In addition, in a vehicle provided with three rows of seats in the vehicle longitudinal direction, it can be used as a second row of middle seats.
As shown in FIG. 16, the vehicle seat 100 has a seat body including a seat back 101, a seat cushion 102, and a headrest 103, and an upper end attached to a front end portion of the seat cushion 102 as shown in FIG. 17. A detachable leg 130 whose lower end is detachably connected to the vehicle body floor side, a rotation link 140 and a piston whose upper end is attached to the rear end of the seat cushion 102 and whose lower end is rotatably connected to the vehicle body floor side. The damper 147 mainly includes a transmission member 146 that connects the rotation link 140 and the detachable leg 130.
As shown in FIG. 17, a storage position as a concave storage space formed on the vehicle body floor is provided on the rear side of the vehicle seat 100.

Further, the vehicle seat 100 includes a reclining device 112 that rotatably connects the seat back 101 to the seat cushion 102, and an engagement hook 132 provided on the detachable leg 130, and a striker 137 that is fixed to the vehicle floor. A first locking device 131 that locks to the rear end portion of the seat cushion 102 and a second locking device 150 that locks the engagement hook 151 attached to the rear end portion of the seat cushion 102 to the striker 154 fixed to the storage position are attached.
As shown in FIG. 18, the first locking device 131 and the second locking device 150 are arranged at positions that overlap in the left-right direction and are separated in the front-rear direction.
The engagement hook 132 and the striker 137 correspond to the first engaged portion and the first floor engaging portion, respectively. Further, the engagement hook 151 and the striker 154 correspond to a second engaged portion and a second floor engaging portion, respectively.

The vehicle seat 100 is a seat that can be arranged in two types of seats, a seatable state in which an occupant can be seated and a storage state in which the seat body is stored in the storage position.
Specifically, when the occupant pulls the operation strap 104 shown in FIG. 16 while the vehicle seat 100 is in a seatable state, the seat back 101 is folded forward and folded toward the seat cushion 102 side. Thereafter, the folded sheet main body jumps up and rotates rearward of the sheet and moves in a sinking direction. Then, the seat body is stored in the storage position.

As shown in FIG. 16, the seat back 101 is a backrest part that supports the back of the occupant from behind, and a cushion pad 101a is placed on the back frame 110 shown in FIG. It is configured to be covered.
The seat cushion 102 is a seating portion that supports an occupant from below, and the cushion pad 102a is placed on the cushion frame 120 shown in FIG. 17 serving as a skeleton, and is covered with the skin 102b from above the cushion pad 102a. It is configured.
The headrest 103 is a head that supports the occupant's head from behind, and is configured such that a cushion pad 103a is placed on a pillar (not shown) serving as a core and covered with an outer skin 103b.

The back frame 110 is formed of a substantially rectangular frame serving as a skeleton of the seat back 101. As shown in FIG. 17, left and right lower ends of the back frame 110 are connected to the cushion frame 120 at left and right ends. The connecting bracket 111 is attached.
The connecting bracket 111 is made of a sheet metal member extending in the vertical direction, and is formed in a substantially bow shape when viewed from the side of the seat. The upper end of the connecting bracket 111 is connected to the back frame 110, and the lower end is a cushion. The frame 120 is connected.
A reclining device 112 that rotatably connects the back frame 110 to the cushion frame 120 is attached to the left and right outer surfaces of the upper end portion of the connection bracket 111.

The reclining device 112 is a known device, and as shown in FIG. 17, as shown in FIG. 17, a rotation shaft 113 that is the rotation center of the reclining device 112 and a spiral spring (not shown) that biases the back frame 110 toward the cushion frame 120. And mainly consists of. One end of the spiral spring is locked to the back frame 110 side, and the other end is locked to the cushion frame 120 side, more specifically, the connection bracket 111.
The reclining device 112 can lock the rotation of the back frame 110, locks the back frame 110 in an upright state, unlocks it by pulling the operation strap 104 shown in FIG. 16, and biases the spiral spring. Thus, the back frame 110 can be rotated forward and folded to the cushion frame 120 side.

The cushion frame 120 is formed of a substantially rectangular frame serving as a skeleton of the seat cushion 102. As shown in FIG. 18, the side frame 121 made of a sheet metal member disposed on the left and right sides, and the front of each side frame 121 A front connection pipe 122 that connects the parts, a rear connection pipe 123 that connects the rear portions of the side frames, a pan frame 124 as a plate-like frame installed on the upper surface of the front connection pipe 122, the pan frame 124 and the rear A plurality of spring members 126 that connect the connecting pipe 123 are provided as main components.
The spring member 126 corresponds to an occupant buttock support member.

An upper end portion of a piston damper 147 is rotatably connected to a substantially central portion in the front-rear direction of the side frame 121 by fastening a rotation bolt (not shown) in the left-right direction of the seat.
A connecting bracket 122a for rotatably connecting the detachable leg 130 is attached to the front connecting pipe 122. The connection bracket 122a rotatably supports the upper end portion of the detachable leg 130 by fastening a rotation bolt (not shown) in the left-right direction of the seat.
The rear connection pipe 123 has two left and right connection brackets 123a for rotatably connecting the rotation link 140 to a lower end portion thereof, and a skin latching portion 125 disposed at the rear end portion so as to extend in the left-right direction. , Is attached. A second locking device 150 is attached between the left and right connecting brackets 123a.
The connection bracket 123a supports the upper end portion of the rotation link 140 so as to be rotatable by fastening a rotation bolt (not shown) in the left-right direction of the seat, and from the second lock device 150 when in the seat storage state. Is also configured forward.

The skin latching portion 125 is a wire member for latching the skin 102b constituting the seat cushion 102, and as shown in FIG. 18, the latching main body portion 125a elongated in the left-right direction, and the latching main body The left and right ends of the portion 125a are bent and attached along the outer edge of the rear connecting pipe 123, and the bent portion 125c is formed by bending the substantially central portion of the latching main body portion 125a. .
The latching main body portion 125a is arranged so as to protrude rearward from the connection bracket 123a, and has a positional relationship that does not interfere with the connection bracket 123a and the rotation link 140.
The bending portion 125c includes a pair of left and right inclined portions that are continuously inclined upward in the left-right inner direction from the latching main body portion 125a, and a horizontal portion that connects the upper ends of the left and right inclined portions.
The curved portion 125c is formed in a portion of the latching main body portion 125a that faces the second locking device 150, and has a positional relationship in which the skin latching portion 125 and the second locking device 150 do not interfere with each other.

The spring member 126 is a member that supports a position corresponding to the buttocks of the occupant to be seated, and is formed of a wave-like linear member called an S spring or a zigzag spring.
As shown in FIG. 18, the plurality of spring members 126 are arranged at predetermined intervals in the left-right direction and extend while meandering so as to be substantially parallel to the front-rear direction.
Of the three spring members 126, as shown in FIG. 18, the second locking device 150 is arranged between the left and right spring members 126 and the central spring member 126. Therefore, the spring member 126 and the second locking device 150 are stored compactly without interference when the sheet is stored and moved.
In place of the spring member 126, an elastic body such as elastic rubber may be used.

As shown in FIG. 18, the detachable leg 130 is a substantially U-shaped sheet metal member extending in the vertical direction, and is a member that supports the seat cushion 102.
The detachable leg 130 is disposed at the upper end of the detachable leg 130, the leg pivot shaft 130 a serving as the pivot center of the detachable leg 130, and the engagement hook 132 detachably engaged with the striker 137 of the vehicle body floor. And a first locking device 131 that locks the engagement hook 132 to the striker 137.
An urging spring (not shown) is attached to the leg rotation shaft 130a, and the detachable leg 130 is disposed at a position that can be engaged with the striker 137 on the vehicle body floor side by the urging force of the urging spring.
The detachable leg 130 is connected to the rotation link 140 via the transmission member 146. After the lock of the first lock device 131 is released, the detachable leg 130 is interlocked with the rotation of the rotation link 140 and the seat is rotated around the leg rotation shaft 130a. It is configured to rotate rearward and fold to the seat cushion 102 side.

As shown in FIGS. 19 to 23, the first lock device 131 is a device that moves the engagement hook 132 in the left-right direction to engage with the striker 137.
The first locking device 131 is connected to a switching device (not shown) via a cable member 139. The locking device can lock the engagement hook 132 to the striker 137 by the switching device, and the locking device cannot be locked. It can be switched to a state.

As shown in FIG. 19, the first lock device 131 includes an engagement hook 132, a first rotation plate 133, a second rotation plate 134, an operation plate 135, and a second rotation plate 134. And an urging spring 136 for urging the position shown in FIG.
The engagement hook 132 is provided at a substantially central portion in the vertical direction, and is a hook rotation shaft 132a that is pivotally supported by the attachment / detachment leg 130 in the front-rear direction. And. When the engagement hook 132 rotates about the hook rotation shaft 132a, the projecting portion 132b moves in the left-right direction and engages with or disengages from the striker 137.

The first rotation plate 133 includes a first rotation shaft 133a that is pivotally supported by the attachment / detachment leg 130 in the front-rear direction, and is connected to a cable member 139 described later.
The second rotating plate 134 includes a second rotating shaft 134a that is pivotally supported by the attaching / detaching leg 130 in the front-rear direction, a latching pin 134b that extends in the front-rear direction and is engaged with one end of the urging spring 136, and an attachment / detachment. And a connection pin 134c connected to the leg 130. The connection pin 134c passes through a through hole (not shown) formed in the operation plate 135.
The operation plate 135 includes an operation rotation shaft 135a that is pivotally supported by the engagement hook 132 in the front-rear direction, and a latch pin 135b that extends in the front-rear direction and is engaged with the other end of the biasing spring 136. Yes.

As shown in FIG. 18 or FIG. 23, the striker 137 is formed of a substantially U-shaped pipe member extending in the front-rear direction, and is fixed on the vehicle body floor via a fixing member 138 and engaged with the detachable leg 130. It is a member.
The striker 137 is erected from the upper surface of the fixing member 138, and connects the upper ends of the front leg portion 137a and the rear leg portion 137b and the front leg portion 137a and the rear leg portion 137b, which are arranged at different positions in the front-rear direction. And a leg connecting portion 137c that can engage with 132.
The leg connecting portion 137c is a portion engaged with the engaging hook 132 and extends substantially horizontally in the front-rear direction.

The fixing member 138 is a substantially rhombus-shaped sheet metal member that extends in the front-rear direction, and includes a first fixing portion 138a, a second fixing portion 138b, and a portion that fastens a fastening bolt (not shown) in the vertical direction toward the vehicle body floor. And a third fixing portion 138c.
The first fixing portion 138a and the second fixing portion 138b are arranged in an opposing position in the front-rear direction and spaced apart in the left-right direction, and are arranged between the first fixing portion 138a and the second fixing portion 138b in the left-right direction. Three fixing portions 138c are provided.
The third fixing portion 138c is disposed behind the first fixing portion 138a and the second fixing portion 138b.

The striker 137 is provided between the first fixing portion 138a and the second fixing portion 138b in the left-right direction, and is disposed in front of the third fixing portion 138c.
In addition, the rear leg portion 137b of the striker 137 is disposed in a region surrounded by the first fixing portion 138a, the second fixing portion 138b, and the third fixing portion 138c.
The portion of the fixing member 138 to which the striker 137 is connected is an overhanging portion that protrudes upward from the first fixing portion 138a, the second fixing portion 138b, and the third fixing portion 138c. Support rigidity is increased.

  The cable member 139 is made of a known cable member, and as shown in FIG. 19, the first locking device 131 and a switching device (not shown) are connected, and the first locking device 131 can be locked by being pulled by the switching device. It switches from the state to the non-lockable state.

With the above configuration, when the first lock device 131 is in the position shown in FIG. 19, the engagement hook 132 is engaged with the striker 137.
When the cable member 139 is pulled in the direction of the arrow shown in FIG. 20 from the position shown in FIG. 19, the engagement hook 132 is unlocked from the striker 137. Further, the cable member 139 is always pulled in the direction of the arrow shown in FIG. 20, so that the first locking device 131 is maintained in an unlockable state.
When the cable member 139 is released from the pulled state as shown in FIG. 21 from the position shown in FIG. 20, the first locking device 131 is switched to the lockable state.
When the engagement hook 132 of the attachment / detachment leg 130 is pressed against the striker 137 from the position shown in FIG. 21, the engagement hook 132 returns to the locked state engaged with the striker 137 as shown in FIG. Details will be described later.

As shown in FIG. 18, the rotation link 140 is a long member that moves the seat cushion 102 to the storage position, and is a first rotation disposed as the three rotation links 140 on the left side portion of the seat cushion 102. A link 141, a second rotation link 142 disposed on the right side portion of the seat cushion 102, and a third rotation link 143 disposed on the right side of the second rotation link 142 and functioning as a guide link. ing.
Further, as shown in FIG. 18, a piston damper 147 made of a long member is disposed on the right side of the third rotation link 143, and the first rotation link 141 and the second rotation link 142 are arranged. A second lock device 150 is disposed between the left and right directions.

The first rotation link 141 and the second rotation link 142 are pivotally connected to a connection bracket 123a attached to the rear end of the seat cushion 102, and the lower ends are attached to the vehicle body floor side. It is configured to be connected to the link rotation shaft 144.
Similarly, the third rotation link 143 is configured such that the upper end is rotatably connected to a connection bracket 123a attached to the rear end portion of the seat cushion 102, and the lower end is connected to the vehicle body floor side as a link rotation shaft 145. When the seat body is stored, the seat cushion 102 is guided to move to the storage position along a predetermined track.

A link urging spring (not shown) is attached to each of the link rotation shafts 144 and 145, and the rotation link 140 is always moved to the storage position side about the link rotation shafts 144 and 145 by the link urging spring. It is energized.
The link biasing spring corresponds to a link biasing member.
The pivot link 140 is connected to the detachable leg 130 via the seat cushion 102. For this reason, the pivot link 140 is locked at the position where the seat cushion 102 is supported from the lower side against the link biasing spring because the attachment / detachment leg 130 and the striker 137 on the vehicle body floor side are locked in the seatable state. The configuration is retained.
The pivot link 140 rotates about the link pivot shafts 144 and 145 so that the seat cushion 102 is moved to the storage position by the biasing force of the link biasing spring after unlocking the attachment / detachment leg 130 and the striker 137. It becomes the composition to do.

As shown in FIG. 17, a transmission member 146 that is directly connected to the attachment / detachment leg 130 is attached to a portion below the rotation shaft 142 a provided at the upper end of the second rotation link 142.
As shown in FIG. 17, the transmission member 146 includes a long transmission main body 146a, a transmission rotation shaft 146b pivotally supported by the second rotation link 142 in the left-right direction, and one end at the front end of the transmission main body 146a. The transmission link 146c is rotatably connected to the other end of the detachable leg 130 and is fixed to a lower part of the leg rotation shaft 130a.

  The transmission main body 146a is rotatable about the transmission rotation shaft 146b with respect to the second rotation link 142, and is disposed to be inclined backward by a predetermined angle with respect to the horizontal plane. When the transmission main body portion 146a is in a seatable state, the transmission main body portion 146a is arranged so as to extend across the longitudinal direction of the second rotation link 142 as shown in FIG. The rotating link 142 is arranged so as to extend substantially in parallel along the longitudinal direction.

The transmission link 146c is formed in a substantially bow shape when viewed from the side surface of the seat, and includes a transmission link rotation shaft 146d that is pivotally supported in the left-right direction at the front end of the transmission main body 146a.
The transmission link 146c is configured to rotate so that the detachable leg 130 is folded and rotated to the seat cushion 102 side around the transmission link rotation shaft 146d. Specifically, among the transmission links 146c, the transmission link rotation shaft 146d moves relative to the front side with respect to the seat cushion 102, in other words, moves in a direction approaching the leg rotation shaft 130a. The transmission link 146c rotates with the attachment / detachment leg 130 to the rear side of the seat.
The transmission link 146c has a substantially crank shape bent in the left-right direction, and the transmission link rotation shaft 146d is disposed on the left and right outer sides of the leg rotation shaft 130a, and does not interfere with each other.

The piston damper 147 is an urging member that applies an urging force toward the outside in the extending direction, and urges the seat cushion 102 upward when it is in a seatable state.
As shown in FIG. 17, the piston damper 147 is configured such that the upper end is rotatably connected to the right side surface of the seat cushion 102, and the lower end is connected to the vehicle body floor side as a damper rotating shaft 147a.
An urging spring (not shown) is attached to the damper rotation shaft 147a. Like the rotation link 140, the piston damper 147 is always moved around the damper rotation shaft 147a toward the storage position side by the urging spring. It is energized.
When the piston damper 147 is in a seatable state, the piston damper 147 is held at a position for supporting the seat cushion 102 against the biasing spring.

With the configuration of the attachment / detachment leg 130, the rotation link 140, the transmission member 146, and the piston damper 147, the rotation of the rotation link 140 is transmitted to the attachment / detachment leg 130 by the transmission member 146 when the sheet is stored and moved.
Specifically, the rotation link 140 rotates rearward about the link rotation shaft 144. The piston damper 147 similarly rotates backward in conjunction with the backward rotation of the rotation link 140, and the upward biasing force of the piston damper 147 that biases the seat cushion 102 upward gradually decreases.
As the upward biasing force of the piston damper 147 decreases, the seat cushion 102 coupled to the pivot shaft 142a at the upper end of the pivot link 140 and the detachable leg 130 coupled to the seat cushion 102 cause the pivot shaft 142a to move by its own weight. Rotates down the seat as the center.
With the downward rotation of the seat cushion 102 and the detachable leg 130, the transmission link 146c fixed to the detachable leg 130 similarly rotates downward on the seat about the rotation shaft 142a.
As a result, the transmission main body portion 146a rotates about the transmission rotation shaft 146b below the seat, and the transmission link rotation shaft 146d connecting the transmission main body portion 146a and the transmission link 146c moves forward with respect to the seat cushion 102. Will move sideways. And the attachment / detachment leg 130 is configured to rotate to the rear side of the seat together with the transmission link 146c.

As shown in FIG. 17 or FIG. 24, the second lock device 150 is a device that moves the engagement hook 151 in the left-right direction to engage with the striker 154.
The second locking device 150 is connected to an operation lever (not shown) via a cable member 155, and the engagement hook 151 can be detached from the striker 154 by pulling the operation lever. More specifically, the engaging hook 151 can be switched from the engageable position at which it can engage with the striker 154 to the non-engageable position by pulling the operation lever.

As shown in FIG. 24A, the second lock device 150 mainly includes an engagement hook 151, an urging spring 152 that urges the engagement hook 151 to an engageable position, and an operation plate 153. Composed.
The engagement hook 151 is provided in the upper portion, and is provided in the lower portion and the hook rotation shaft 151a that is pivotally supported in the front-rear direction by the rear connection pipe 123 of the cushion frame 120 via a connection bracket (not shown). A connecting pin 151b extending in the direction and connected to the operation plate 153, and a protrusion 151c hooked to the striker 154 are provided.
When the engagement hook 151 rotates about the hook rotation shaft 151a, the projecting portion 151c moves in the left-right direction and engages with or disengages from the striker 154. Further, the connecting pin 151b passes through a through hole (not shown) formed in the operation plate 153.

The urging spring 152 is wound around the hook rotating shaft 151a, and is configured as a free end whose one end is hooked on the engagement hook 151 and whose other end is hooked on the cushion frame 120 side. ing.
The operation plate 153 has one end connected to the engagement hook 151 via the connection pin 151 b and the other end connected to the cable member 155.

In the second locking device 150, the engagement hook 151 is disposed in the engageable position when it is in the position shown in FIG.
At this time, when the engagement hook 151 is pressed against the striker 154 on the storage floor from above, the engagement hook 151 rotates clockwise around the hook rotation shaft 151a as seen from the back side of the seat, and the protrusion 151c The striker 154 is sandwiched again to return to the engageable position by the biasing force of the biasing spring 152.
More specifically, since the connecting pin 151b of the engagement hook 151 can freely move in the left-right direction between the through holes of the operation plate 153, the protrusion 151c abuts against the striker 154 and pushes against the striker 154. It is configured to be movable in the left-right direction by being moved.
As a result, the engagement hook 151 is engaged with the striker 154 and locked.

When the cable member 155 is pulled from the position shown in FIG. 24 (a) in the direction of the arrow shown in FIG. 24 (b), the operation plate 153 causes the engagement hook 151 to hook the hook rotation shaft 151a via the connecting pin 151b. Push it clockwise around the center. As a result, the engagement hook 151 moves to the position where it cannot be engaged, and the striker 154 is released to release the lock.
As long as the cable member 155 is pulled, the engagement hook 151 is always urged to the disengageable position. When the pull of the cable member 155 is released, the engagement hook 151 returns to the engageable position.

<About sheet storage operation>
Next, an operation for moving the vehicle seat 100 from the seatable state to the stored state will be described with reference to FIGS. 25 and 26.
When the vehicle seat 100 is in the seatable state shown in FIG. 25A, the seat back 101 is locked in the standing state by the reclining device 112, and the seat cushion 102 is attached by the detachable leg 130 and the rotation link 140. The configuration is supported from below.
At this time, the first lock device 131 is in the locked state shown in FIG. 19 in which the engagement hook 132 is engaged with the striker 137.

Next, when the vehicle seat 100 is moved from the seatable state to the stored state, for example, the operation strap 104 shown in FIG. 16 provided on the upper surface of the seat back 101 is operated.
When the occupant pulls the operation strap 104, the reclining device 112 is unlocked as shown in FIG. 25B, and the seat back 101 is centered on the rotation shaft 113 by the biasing force of a spiral spring (not shown). As a result, folding rotation is started on the seat cushion 102 side.
When the seat back 101 is folded to a predetermined rotational position, the first lock device 131 releases the lock between the engagement hook 132 of the attachment / detachment leg 130 and the striker 137, and the rotation link 140 is provided with a link biasing spring. The rotation starts so that the seat cushion 102 is moved to the storage position by the force. At this time, since the piston damper 147 urges the seat cushion 102 upward, the seat cushion 102 moves so as to spring up with unlocking.
Note that the switching device (not shown) and the first locking device 131 are connected by the cable member 139, and when the seat back 101 is folded to a predetermined rotational position, one end of the cable member 139 is pulled by the switching device. The first locking device 131 coupled to the other end of the cable member 139 is unlocked.

Regarding the first locking device 131, specifically, when the cable member 139 is pulled in the direction of the arrow shown in FIG. 20, first, the first rotating plate 133 is moved from the back side of the seat around the first rotating shaft 133a. Rotate counterclockwise to see. The first rotating plate 133 abuts on the second rotating plate 134 and moves the second rotating plate 134 clockwise around the second rotating shaft 134a against the urging force of the urging spring 136. Push around.
The second rotation plate 134 rotates so as to draw the operation plate 135 toward the second rotation plate 134 via the connecting pin 134c. More specifically, the operation plate 135 rotates counterclockwise around the operation rotation shaft 135a and moves to a position away from the position in contact with the second rotation shaft 134a.
In conjunction with the rotation of the operation plate 135, the engagement hook 132 connected to the operation plate 135 via the connection shaft 35b is pushed clockwise around the hook rotation shaft 132a. As the engagement hook 132 rotates, the engagement hook 132 is gradually detached from the striker 137.
As a result, when the first locking device 131 is in the position shown in FIG. 20, the engagement hook 132 is unlocked from the striker 137. Further, the cable member 139 is always pulled in the direction of the arrow, so that the first lock device 131 is maintained in an unlockable state.

Next, when the rotation link 140 starts to rotate so as to move the seat cushion 102 to the storage position, the attachment / detachment leg 130 rotates so as to be folded toward the seat cushion 102 in conjunction with the rotation of the rotation link 140. start.
More specifically, the upper end of the attachment / detachment leg 130 and the upper end of the rotation link 140 are connected by the transmission member 146, and the rotation of the rotation link 140 is transmitted to the attachment / detachment leg 130 by the transmission member 146. As a result, when the rotation link 140 starts to rotate rearward of the seat, the detachable leg 130 starts to fold and rotate toward the seat cushion 102 side.

  Next, as shown in FIG. 26A, when the seat cushion 102 reaches the predetermined position toward the storage position, in other words, when the pivot link 140 and the detachable leg 130 reach the predetermined rotation position. The first locking device 131 released from the state where one end of the cable member 139 is pulled by the switching device (not shown) and connected to the other end of the cable member 139 is in the lockable state shown in FIG. Will be switched to.

Specifically, when the cable member 139 is released from the pulled state as shown in FIG. 21 with respect to the first locking device 131, the first rotating plate 133 is watched around the first rotating shaft 133a. Rotate around. The second rotating plate 134 is released from the first rotating plate 133, is urged by the urging spring 136, rotates counterclockwise about the second rotating shaft 134 a, and contacts the engagement hook 132. .
Then, the second rotation plate 134 pushes the engagement hook 132 clockwise around the hook rotation shaft 132a. The engagement hook 132 is regulated by the operation plate 135 connected via the connection shaft 35b, and rotates to a position shown in FIG.
As a result, the first lock device 131 switches to a lockable state.

  As a result of the series of operations, as shown in FIG. 26B, the seat cushion 102 and the seat back 101 constituting the seat body are stored in the storage position, and the vehicle seat 100 is moved to the storage state. When the sheet is moved to the seat storage state, the engagement hook 151 of the second lock device 150 is engaged with the striker 154 on the storage floor.

<Seat return operation>
Next, an operation for returning the vehicle seat 100 from the stored state to the seatable state will be described with reference to FIGS. 27 and 28.
When returning the vehicle seat 100 from the stored state to the seatable state, as shown in FIG. 27B, for example, the passenger manually raises the seat body upward. At this time, for example, the second locking device 150 is unlocked by pulling an operation lever (not shown) provided on the back surface of the seat back 101.
The pivot link 140 causes the seat body to rotate and rotates to the front side of the seat about the link pivot shaft 144 so as to move the seat cushion 102 to the seating position.
At this time, the attachment / detachment leg 130 rotates from the state folded to the seat cushion 102 side to the seat front side around the leg rotation shaft 130a in conjunction with the rotation of the rotation link 140.

As shown in FIG. 28A, when the seat main body is fully raised, the engagement hook 132 and the striker 137 of the attachment / detachment leg 130 are locked by the first lock device 131.
As for the first locking device 131, specifically, the engagement hook 132 of the detachable leg 130 is pressed against the striker 137, so that the engagement hook 132 is centered on the hook rotation shaft 132a as shown in FIG. It rotates counterclockwise so that 137 is clamped.
As a result, the first locking device 131 returns to the locked state in which the engagement hook 132 is engaged with the striker 137.

Next, after raising the seat body, the seat back 101 is raised from the folded state to the seat cushion 102 side.
As shown in FIG. 28B, when the seat back 101 is raised to a predetermined rotational position, the seat back 101 returns to the seatable state.
The vehicle seat 100 is returned to the seatable state by the series of operations described above.

  According to the vehicle seat 100 configured as described above, the vehicle seat 100 can be switched between a seatable state in which an occupant can be seated and a storage state in which the seat cushion 102 is moved to a storage position formed on the vehicle body floor. An detachable leg 130 having one end attached to the seat cushion 102 and a first engaged portion provided at the other end removably coupled to a first floor engaging portion provided on the vehicle body floor. And a second engaged portion that is attached to the seat cushion 102 and is detachably connected to a second floor engaging portion provided on the vehicle body floor in the retracted state. The first engaged portion of 130 protrudes in a direction orthogonal to the moving direction of the seat cushion 102 with respect to the first floor engaging portion, and the first engaged portion of the first floor engaging portion. Engageable portions to engagement portion may extend along the moving direction of the seat cushion 102.

As described above, the first engaged portion of the detachable leg 130 protrudes in the direction perpendicular to the moving direction of the seat cushion 102 with respect to the first floor engaging portion, and the first floor engaging portion includes the first engaged portion. Since the portion engageable with the engaged portion extends along the moving direction of the seat cushion 102, for example, the first engaged portion of the detachable leg 130 is used to return the seat cushion 102 to the seatable state. When engaging the first floor engaging portion, even if the detachable leg 130 swings in the front-rear direction, the hooking portion of the first floor engaging portion extends in the moving direction of the seat cushion 102, so that it can be attached and detached. It is possible to engage by absorbing variations due to the swing of the leg 130 in the front-rear direction.
That is, the operability of engaging the detachable leg 130 with the first floor engaging portion with a simple structure can be improved, and the vehicle seat 100 that can be easily switched between the seatable state and the stored state can be provided.
In addition, since the second engaged portion that is attached to the seat cushion 102 and is detachably connected to the second floor engaging portion provided on the vehicle body floor in the retracted state is provided, the stability at the time of storing the seat is improved. Can be improved.

At this time, the second engaged portion is attached to one end of the seat cushion 102 in the front-rear direction where the storage position is formed, and overlaps the first engaged portion in the seat width direction. It is good to be arranged in the position.
With the above-described configuration, the end of the seat cushion 102 on the storage position side is engaged with the second floor engaging portion, whereby the stability during seat storage can be further improved.
In addition, since the second engaged portion is disposed at a position overlapping the first engaged portion in the sheet width direction, it is possible to achieve compactness in the sheet width direction.

At this time, one end is attached to the seat cushion 102 and the other end is rotatably connected to the vehicle floor, and the rotation link 140 is biased to rotate to the storage position side. A link urging member that rotates, and the rotation link 140 may be rotatable so as to move the seat cushion 102 toward the storage position by the urging force of the link urging member.
As described above, the rotation link 140 can be rotated by the link urging member so as to move the seat cushion 102 toward the storage position, so that the storage operability of the seat body is improved.

At this time, the rotation link 140 includes a first rotation link 141 and a second rotation link 142 that are arranged at different positions in the sheet width direction, and the second engaged portion has a sheet width. It is good to arrange | position between the said 1st rotation link 141 and the said 2nd rotation link 142 in a direction.
With the above configuration, the second engaged portion is sandwiched between the two rotation links, so that the engagement with the second floor engaging portion can be stabilized.

At this time, the second engaged portion may be disposed on the outer side in the seat front-rear direction than the position where the pivot link 140 is attached to the seat cushion 102.
With the above-described configuration, the second engaged portion is disposed at the outer position of the seat cushion 102 in the front-rear direction, so that the stability during seat storage can be further improved.

At this time, a skin latching portion 125 that latches the skin constituting the seat cushion 102 is provided on the side of the seat cushion 102 in the front-rear direction where the second engaged portion is attached. The skin latching portion 125 is preferably provided so as to extend in the seat width direction, and includes a curved portion 125c that curves the portion of the skin latching portion 125 that faces the second engaged portion.
With the above configuration, interference between the second engaged portion and the skin latching portion 125 can be suppressed when the seat is switched between the seatable state and the stored state.

At this time, the seat cushion 102 includes a cushion frame 120 serving as a skeleton, the cushion frame 120 includes a plurality of occupant heel support members extending in the seat front-rear direction, and the second engaged portion is configured in the seat width direction. It is good to arrange | position between several said passenger | crew buttock support members.
With the above-described configuration, interference between the second engaged portion and the occupant's buttocks support member can be suppressed when the seat is switched between the seatable state and the stored state.

At this time, the first floor engaging portion includes a striker 137 engaged with the first engaged portion, and a fixing member 138 for fixing the striker 137 to the vehicle body floor, and the striker 137 includes: A front leg portion 137a and a rear leg portion 137b that are erected from the upper surface of the fixing member 138 and are arranged at different positions in the front-rear direction of the seat, connect the front leg portion 137a and the rear leg portion 137b, and Leg fixing part 137c engageable with the part, and the fixing member 138 includes a first fixing part 138a and a second fixing part 138b arranged at different positions in the seat width direction, and the first fixing part 138a. And a third fixing portion 138c disposed rearward of the second fixing portion 138b, and the rear leg portion 137b of the striker 137 includes the first fixing portion 138a. Wherein the second fixing portion 138b, may be disposed in a region surrounded by the third fixing portion 138c.
With the above configuration, since the striker 137 is stably fixed to the vehicle body floor side, the engagement between the first engaged portion and the striker 137 is stable, and as a result, the vehicle seat 100 is stable when it can be seated. To do.

  In the above-described embodiment, the vehicle seat 100 has a configuration in which the seat cushion 102 can be stored in a storage position formed at the rear of the seat. It is good also as a structure which can be accommodated in the storage position formed ahead.

  In the above embodiment, one detachable leg 130 of the vehicle seat 100 is attached to the front end portion of the seat cushion 102, but the present invention is not limited to this, and the attachment position and quantity to the seat cushion 102 are changed as appropriate. Is possible. For example, a configuration in which a detachable leg is separately attached to the rear end portion of the seat cushion 102 may be adopted. With this configuration, the support rigidity of the detachable leg 130 that supports the seat cushion 102 from below is improved.

In the above embodiment, the first locking device 131 is attached to the back side of the lower end of the detachable leg 130, but the present invention is not limited to this. For example, as shown in FIG. The third locking device 160 may be attached to a substantially central portion in the vertical direction. With this configuration, the seat main body is stably supported on the vehicle body floor in the seatable state.
At this time, it is preferable that an engagement hook (not shown) of the third lock device 160 moves in the vertical direction to engage with or disengage from a striker (not shown). The striker is attached to the vehicle body floor, particularly the step surface between the vehicle body floor and the storage floor, such that a leg connecting portion (not shown) that engages with the engagement hook of the striker extends in the left-right direction. And good.
The third locking device 160 is preferably unlocked at the same timing as the first locking device 131.

In the above-described embodiment, the detachable leg 130 includes the engagement hook 132 as an engaged portion that is detachably engaged with the striker 137, but the striker 137 is not limited to the shape of the engagement hook 132. As long as it can be detachably engaged, it can be changed as appropriate.
Similarly, any floor engagement portion that can be engaged with the engagement hook 132 is not limited to the shape of the striker 137 and can be changed as appropriate.

  In the above-described embodiment, a stowable vehicle seat used for an automobile has been described as a specific example. However, the seat is not limited to this, and a vehicle seat such as a train or a bus, or a vehicle seat such as an airplane or a ship. Can also be used.

In the above-described embodiment, the description has been given mainly on the vehicle seat provided with a separate locking mechanism at the rear end of the seat cushion according to the present invention.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
In particular, the arrangement and configuration of the detachable leg 130, the first lock device 131, the rotation link 140, and the second lock device 150 described in the above embodiment are merely examples, and the present invention is limited. Not what you want.

S Seat S1 Seating part T Vehicle floor T1 Storage space T2 Striker T3 Mounting bracket T4 Striker 1 Seat cushion 1a Seat cushion frame 1b, 1c, 1d Fixed bracket 2 Seat back 3 Headrest 4 Seat storage mechanism 10 Foot link (supporting member)
10a Flange portion 10b Lock mechanism 10c Rotating shaft 20 for foot link Rotating link 21 Inner link (first link)
21a Rotating shaft for inner link 21b Connecting shaft 21c Lock mechanism 22 Outer link (second link)
22a rotating shaft for outer link 22b connecting shaft 22g long portion 22h short portion 22i extending bracket 23 guide link 23a rotating shaft for guide link 23b connecting shaft 24 piston damper (biasing member)
25 Relay member 26a, 26b Shaft fixing tool 50 Rotating link 100 Vehicle seat 101 Seat back 101a, 102a, 103a Cushion pad 101b, 102b, 103b Skin 102 Seat cushion 103 Headrest 104 Operation strap 110 Back frame 111 Connecting bracket 112 Reclining device 113 Rotating shaft ( Rotating shaft for seat back)
120 Cushion frame 121 Side frame 122 Front connection pipe 122a Connection bracket 123 Rear connection pipe 123a Connection bracket 124 Pan frame 125 Skin latching part 125a Latching body part 125b Attachment part 125c Bending part 126 Spring member 130 Removable leg 130a Leg rotation shaft 131 First lock device 132 Engagement hook 132a Hook rotation shaft 132b Protruding portion 133 First rotation plate 133a First rotation shaft 134 Second rotation plate 134a Second rotation shaft 134b Latching pin 134c Connection pin 135 Operation Plate 135a Actuating rotation shaft 135b Latching pin 136 Biasing spring 137 Striker 137a Front leg part 137b Rear leg part 137c Leg connecting part 138 Fixing member 138a First fixing Portion 138b Second fixing portion 138c Third fixing portion 139 Cable member 140 Rotating link 141 First rotating link (first link)
142 Second rotation link (second link)
142a Rotating shaft 143 Third rotating link (guide link)
144, 145 Link rotation shaft 146 Transmission member (relay member)
146a Transmission body 146b Transmission rotation shaft 146c Transmission link 146d Transmission link rotation shaft 147 Piston damper (biasing member)
147a Damper rotating shaft (biasing member rotating shaft)
150 Second lock device 151 Engagement hook 151a Hook rotation shaft 151b Connecting pin 151c Protruding portion 152 Biasing spring 153 Actuating plate 154 Striker 155 Cable member 160 Third lock device

Claims (10)

A vehicle seat that can be stored in a storage position formed on a vehicle body floor,
Is connected to the seat cushion with the vehicular seat, in order to move the seat cushion to the stored position, the pivot link that pivots via the pivoting shaft mounted to the vehicle body floor,
A guide link that rotates through a guide link rotation shaft to guide the seat cushion so that the seat cushion moves to the storage position along a predetermined trajectory;
It is provided at a position aligned with the guide link in the front-rear direction of the vehicle seat, and rotates with respect to the vehicle body floor together with the guide link via an urging member rotation shaft while urging the seat cushion. An urging member ,
An outer end portion of the guide links pivot shaft definitive in the width direction of the vehicle seat has an outer end portion of the pivot shaft in the width direction, out of the biasing member for rotation axis in the width direction A vehicle seat characterized by being arranged between the end portions . An upper end portion of the guide link is coupled to the seat cushion so as to be rotatable via a coupling shaft,
The portion of the guide link to which the connecting shaft and the guide link rotation shaft are attached is disposed between the rotation link and the biasing member in the seat width direction. Item 2. The vehicle seat according to Item 1. Wherein one of the guide link, the portion where the connecting shaft is attached, a vehicle seat according to claim 2, characterized that you have been placed at a position different from the biasing member in the sheet width direction. The pivot link includes a first link and a second link disposed at a position closer to the guide link in the sheet width direction than the first link,
The guide link is attached to a shaft fixture provided on the vehicle body floor via the guide link rotation shaft,
The shaft fixture, a vehicle seat according to any one of claims 1 to 3, wherein that you have been placed on at least a portion which overlaps the position of the second link in the sheet width direction. The pivot link includes a first link and a second link disposed at a position closer to the guide link in the sheet width direction than the first link,
The second link is attached to the vehicle body floor via an extending bracket extending in the vertical direction,
The guide links, the vehicle seat according to any one of claims 1 to 4, characterized that you have arranged a position different from the extending bracket in the seat width direction. The pivot link includes a first link and a second link disposed at a position closer to the guide link in the sheet width direction than the first link,
Claim wherein the guide links, which are formed to be shorter than the first link in the seat front-rear direction, and, in the seat width direction than the first link is formed so that the width becomes narrow, characterized in Rukoto The vehicle seat according to any one of 1 to 5 . The guide link extends from the main body portion to the biasing member side in the seat width direction from the main body portion to which at least one of the connecting shaft and the guide link rotation shaft is attached. the vehicle seat according to any one of claims 1 to 6, characterized that you have a and the extending portion. The first link has a substantially C-shaped cross section and a substantially C-shaped cross section, and is formed to be narrower than the one part. The first link is open to the one part. And the other part fitted through,
The vehicle seat according to claim 7 , wherein the extension portion of the guide link is disposed at a position on the other portion side in the seat front-rear direction . A seat back that is pivotably attached to the seat cushion via a seat back pivot;
The rotation shaft for said guide link, when the seated person can sit conditions of use, according to claim 1 to 8 than the seatback times shaft in the sheet longitudinal direction, characterized that you have placed in front The vehicle seat according to any one of the above. A support member that is disposed between the vehicle body floor and the seat cushion and supports the seat cushion;
The support member is connected to the seat cushion in a rotatable state, is rotated so as to be folded toward the seat cushion when in the retracted state, and is connected to the rotation link via a relay member. And
The guide links, the vehicle seat according to any one of claims 1 to 9, wherein that you have been placed in different positions and the relay member in the sheet longitudinal direction on the use state.

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