WO2015190274A1

WO2015190274A1 - Vehicle seat

Info

Publication number: WO2015190274A1
Application number: PCT/JP2015/064881
Authority: WO
Inventors: 大竹茂和; 宮崎眞幸
Original assignee: テイ・エステック株式会社
Priority date: 2014-06-09
Filing date: 2015-05-25
Publication date: 2015-12-17
Also published as: TW201545918A; TWI645990B

Abstract

Provided is a vehicle seat (vehicle seat (1)) having a seat cushion (10) capable of moving between a seating position located where sitting and use occurs and a storage position located to the front of the seating position, and a seatback (20) capable of moving between a seating position located where sitting and use occurs and a storage position achieved by dropping downward to the front. The seat cushion (10) is configured in a manner such that during movement between the seating position and the storage position, the rear end section thereof moves below a horizontal plane (H) passing through the upper end of the front end section of the seat cushion (10) when in the seating position.

Description

Vehicle seat

The present invention relates to a vehicle seat capable of changing a seat layout by moving a seat cushion forward.

2. Description of the Related Art Conventionally, in a rear seat of a passenger car or the like, a seat layout change structure is known that expands a storage space at the rear of a vehicle by flipping the seat cushion forward and then tilting the seat back forward. In such a vehicle seat, after the rear end portion of the seat cushion is lifted, the seat cushion is moved downward in the front direction and the seat back is tilted forward (see Patent Document 1).

JP2011-11665A

However, in the configuration of Patent Document 1, since the rear end portion of the seat cushion is lifted, there is a possibility that when the vehicle seat is stored, the rear end portion and the seat back that is tilted forward interfere with each other.

The present invention has been made in view of the above background, and provides a vehicle seat that suppresses interference between a seat cushion and a seat back when the vehicle seat is moved from the seating position to the storage position. With the goal.

In order to achieve the above-described object, the vehicle seat of the present invention is seated and used with a seat cushion movable between a seating position at which the seat is used and a storage position in front of the seating position. A vehicle seat having a seat back movable between a seating position at a position where the seat is placed and a storage position tilted forward, wherein the seat cushion moves between the seating position and the storage position Sometimes, the rear end portion is configured to move below a horizontal plane passing through the upper end of the front end portion of the seat cushion at the seating position.

According to such a configuration, since the movable range in the vertical direction of the rear end portion of the seat cushion becomes small, it is possible to suppress interference between the seat cushion and the seat back when moving from the seating position to the storage position. it can.

When the vehicle seat includes a headrest provided on the seat back, the headrest contacts the seat cushion when the seat cushion and the seat back are positioned at the storage position, and the seat The back may be configured to contact the seat cushion.

During storage, if only the seat back comes into contact with the seat cushion, the seat back and the seat cushion are relatively strongly hit, and the seat back cushioning material and the skin material are likely to have contact marks on the seat back. However, according to the above-described configuration, it is possible to reduce contact marks on the seat cushion by contacting the seat cushion at two or more locations of the headrest and the seat back.

In the configuration described above, the seat cushion has a convex portion protruding from the lower surface or a concave portion recessed from the lower surface, and the convex portion or the concave portion is provided in the vehicle body when the seat cushion is located at the seating position. In addition, the first engaging portion can be configured to be engageable.

According to such a configuration, the seat cushion can be positioned at the sitting position.

In the configuration described above, the convex portion or the concave portion is configured to be engageable with a second engagement portion provided in the vehicle body when the seat cushion is located at the storage position. Can do.

According to such a configuration, the seat cushion can be positioned at the storage position.

When the vehicle seat includes a first leg and a second leg, one end of which is pivotally connected to the front portion of the seat cushion and the other end of which is pivotally connected to the vehicle body. Has a projecting portion projecting outward from the left and right sides of the mounting position of the first leg and the second leg to the vehicle body, and of the left and right projecting portions, the first leg side The overhanging portion has a larger overhanging amount than the overhanging portion on the second leg side, the first leg extends from the other end so as to approach the seat cushion, and the left-right direction from the support portion It can be set as the structure which has the extension part extended outside.

According to such a configuration, the load applied to the overhanging portion on the first leg side can be favorably received by the extending portion, and the overhanging portion on the first leg side can be stably supported.

In the configuration described above, the extension portion passes over a main body convex portion extending in the front-rear direction formed on the floor of the vehicle main body when the seat cushion moves between the seating position and the storage position. It can be set as the structure arranged so.

According to such a configuration, it is possible to suppress the first leg from interfering with the main body convex portion of the vehicle main body.

In the above-described configuration, the seat cushion protrudes downward from the protruding portion on the first leg side and has a protruding portion that can come into contact with the main body protruding portion, and the protruding portion is located on the left and right sides of the extending portion. It can be set as the structure provided in the direction outer side.

According to such a configuration, the protruding portion on the first leg side can be stably supported by the projecting portion and the main body convex portion coming into contact with each other.

In the above-described configuration, the seat cushion includes a pipe provided in the front portion and extending in the left-right direction and a wire provided so as to pass through the front of the pipe, and the extension portion is provided in the front-rear direction. It can be set as the structure arrange | positioned at least partially between the said pipe and the said wire.

According to such a configuration, it is possible to suppress the extension portion from protruding in front of the vehicle seat.

In the configuration described above, the first leg has a first connecting portion that extends from the extending portion toward a rotation axis with the seat cushion, and the first connecting portion is different from the extending portion. It can consist of members and can be set as the structure currently fixed to the said extension part.

When the extension portion is bent and connected to the pivot shaft of the seat cushion, the bent portion, particularly the corner portion, has a large R shape, so that the extension portion and other members can be moved when the first leg rotates. There is a risk of interference. However, according to the configuration described above, since the corner portion of the connecting portion between the extending portion and the first connecting portion cannot have a large R shape, the connecting portion and other members do not interfere when the first leg is rotated. . Moreover, the clearance of an extension part and a seat cushion is securable by the 1st connection part.

In the above-described configuration, the second leg has one end pivotally connected to the seat cushion and the other end pivotally connected to the vehicle body, the first link, One end of the seat cushion is pivotally connected to the seat cushion at a position displaced from the node of the seat cushion, and the other end is coupled to the vehicle body at a position displaced from the node of the first link and the vehicle body. It can be set as the structure provided with 2 links.

According to such a configuration, by providing the second link on the second leg having no extension, the second link is made smaller than the configuration in which the member corresponding to the second link is provided on the first leg. be able to.

In the above-described configuration, it may be configured to include a second connecting portion that is disposed below the extending portion and connects the support portion and the second leg.

According to such a configuration, the rigidity of the first leg and the second leg can be increased.

According to the present invention, since the vertical movable range of the rear end portion of the seat cushion is reduced, it is possible to suppress interference between the seat cushion and the seat back when moving from the seating position to the storage position.

According to the present invention, it is possible to reduce contact marks on the seat cushion by bringing the seat cushion into contact with the headrest and the seat back at two or more locations during storage.

According to the present invention, the seat cushion can be positioned at the seating position, and the seat cushion can be prevented from being tilted when moving from the seating position to the storage position.

According to the present invention, the seat cushion can be positioned at the storage position.

According to the present invention, the load applied to the overhanging portion on the first leg side can be favorably received by the extending portion, and the overhanging portion on the first leg side can be stably supported.

According to the present invention, it is possible to suppress the first leg from interfering with the main body convex portion of the vehicle main body.

According to the present invention, the projecting portion and the main body convex portion are in contact with each other, whereby the overhanging portion on the first leg side can be stably supported.

According to the present invention, it is possible to suppress the extension portion from protruding in front of the vehicle seat.

According to the present invention, since a large R shape cannot be formed at the corner of the connecting portion between the extending portion and the first connecting portion, the connecting portion and other members do not interfere with each other when the first leg is rotated. Moreover, the clearance of an extension part and a seat cushion is securable by the 1st connection part.

According to the present invention, the second link can be made smaller by providing the second link on the second leg without the extension, compared to the configuration in which the member corresponding to the second link is provided on the first leg. it can.

According to the present invention, the rigidity of the first leg and the second leg can be increased.

1 is a perspective view of a vehicle seat as a vehicle seat according to an embodiment. It is a perspective view which shows the internal structure of the vehicle seat. It is the figure which looked at the internal structure of the seat cushion from the front. It is the figure which looked at the internal structure of the seat cushion from the top. It is the figure which looked at FIG. 3 from the back, Comprising: It is an enlarged view of the extension part part. FIG. 2 is a view of the vehicle seat in the seating position as viewed from the left side, and is an enlarged view (a) of the seat cushion portion and a cross-sectional view taken along line AA in FIG. It is the figure which looked at the vehicle seat from the left side, Comprising: It is a figure which shows a mode that a seat cushion and a seat back move ahead. It is the figure which looked at the vehicle seat in the storage position from the left side. It is the figure which looked at the internal structure of the seat cushion in the storing position from the front. It is a figure equivalent to Drawing 6 (b) in a modification.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. As shown in FIG. 1, a vehicle seat 1 as an example of a vehicle seat is a three-seat seat used for a rear seat of an automobile, and includes a seat cushion 10, a seat back 20, and a headrest 30. Mainly prepared. The vehicle seat 1 is movable between a sitting position where the vehicle seat 1 is used by being seated and a storage position which is realized by moving the seat cushion 10 forward and tilting the seat back 20 into a space.

The seat cushion 10 includes a left-side seat cushion 10A for two-seater and a right-side seat cushion 10B for one-seater, and the seat back 20 includes a left-side seat back 20A for two-seat, A right seat back 20B for one person.

In the following description, front and rear, left and right, and top and bottom are based on the passenger sitting on the vehicle seat 1. Further, in the following description, unless otherwise specified, the seat cushion 10 and the seat back 20 will be described with respect to the left seat cushion 10A and the seat back 20A, and the right seat cushion 10B and the seat back 20B will be described with respect to the left side. Since it has substantially the same structure as the seat cushion 10A and the seat back 20A, description thereof is omitted.

The seat cushion 10 includes a cushion body 11, and a first leg 100 and a second leg 110 that support the cushion body 11 so as to be rotatable with respect to the floor F of the vehicle body (for the right seat cushion 10B, a pair of legs 19). ). A pair of attachment members 12 for attaching the first leg 100 and the second leg 110 are fixed to the floor F with bolts 12A and the like.

As shown in FIG. 2, the pair of attachment members 12 are disposed on the outer side (left side) in the left-right direction with respect to the center tunnel F 1 extending in the front-rear direction and formed at the center in the left-right direction of the floor F of the vehicle body.

The seat cushion 10 includes a pipe 13 and a reinforcing wire 14 provided in the cushion main body 11. Further, the seat cushion 10 has a pair of overhanging portions 15 (see FIG. 3) that project to the left and right outside of the pair of attachment members 12.

The pipe 13 is provided in the front part of the cushion body 11, and extends in the left-right direction over a range in which the pair of attachment members 12 and the center tunnel F1 are provided. The pipe 13 has a first protrusion 13A and a second protrusion 13B protruding downward, a first attachment part 13C for attaching the first leg 100, and a second attachment part 13D for attaching the second leg 110. And are provided.

13 A of 1st protrusion parts are provided in the position corresponding between a pair of attachment members 12, and the 2nd protrusion part 13B is provided in the position facing the right end of the pipe 13, specifically the center tunnel F1. Yes. The center tunnel F1 is higher than the foot space portion F2 in front of the mounting member 12 by a height h, and the second protrusion 13B has a protrusion amount from the pipe 13 that is the height h. It is comprised so that it may become smaller than the protrusion amount of 13 A of protrusion parts (refer also FIG. 3).

The first attachment portion 13 C is provided at the right end portion of the pipe 13, and the second attachment portion 13 D is provided at the left end portion of the pipe 13.

The reinforcing wire 14 is made of a metal wire and is fixed to the pipe 13. The reinforcing wire 14 is provided so as to pass through the front side, the left and right sides, and the rear side of the pipe 13 along the outer shape of the cushion body 11.

As shown in FIG. 3, of the pair of overhanging portions 15, the right overhanging portion 15 A (on the first leg 100 side) is in the same position as the center tunnel F 1 in the left-right direction. It is provided so as to pass over the center tunnel F1 when moving between the storage positions. The protruding portion 15A on the right side has a larger protruding amount than the protruding portion 15B on the left side (second leg 110 side). The right overhanging portion 15A has an overhanging amount corresponding to the width of one occupant.

As shown in FIGS. 1 and 8, the seat back 20 is configured to be rotatable in the front-rear direction with the lower end portion as a fulcrum, and has a seat back main body 21. As shown in FIG. 2, a frame 22 and a rotating shaft 23 are provided in the seat back main body 21. The frame 22 is configured in a substantially U shape that opens downward. The rotating shaft 23 extends in the left-right direction, and the left and right lower ends of the frame 22 are fixed by welding or the like.

The rotation shaft 23 is rotatably supported by attachment members 24 fixed to the floor F on the left and right sides of the seat back 20 so that the frame 22 can rotate with respect to the floor F. The rotating shaft 23 is provided with a spiral spring 25 that urges the seat back body 21 forward.

As shown in FIG. 1, the headrest 30 includes a headrest body 31 and support pillars 32 (see FIG. 8) that support the headrest body 31 on the seat back 20. A total of three seat backs 20B are provided.

Next, the structure of the first leg 100 and the second leg 110 will be described.
As shown in FIG. 3, the first leg 100 is a leg that is disposed closer to the center tunnel F 1 than the second leg 110 and supports the right side portion of the pipe 13. The first leg 100 is formed by bending a metal pipe, and has a support portion 101 extending from the lower end so as to approach the seat cushion 10 and an extension portion 102 extending from the upper end of the support portion 101 to the outer side in the left-right direction (right side). is doing.

The lower end of the support part 101 is rotatably connected to the mounting member 12. As shown in FIG. 2, the support portion 101 is provided with a spiral spring 103 at the lower end, and is urged forward by the spiral spring 103.

As shown in FIG. 3, the extending portion 102 is arranged in parallel with the pipe 13 and is located at the same position as the center tunnel F1 in the left-right direction so as to avoid the center tunnel F1, and the seat cushion 10 is in the seating position and the storage position. Are arranged so as to pass over the center tunnel F1. As shown in FIG. 4, the extension 102 is at least partially disposed between the pipe 13 and the reinforcing wire 14 on the front side of the pipe 13 in the front-rear direction. The second projecting portion 13 B described above is disposed on the outer side (right side) in the left-right direction of the right end of the extending portion 102.

As shown in FIG. 5, the extending portion 102 has a first connecting portion 104 that is rotatably supported by the first mounting portion 13 C at the right end. The 1st connection part 104 consists of a member different from the extension part 102, and is being fixed to the right end of the extension part 102 by welding etc. As shown in FIG. The first connecting portion 104 extends from the right end of the extending portion 102 toward the rotation shaft 105 with the first mounting portion 13C (seat cushion 10).

The second leg 110 includes a first link 111 and a second link 112 as shown in FIG. The first link 111 is a leg that supports the left end portion of the pipe 13, the upper end is rotatably connected to the second attachment portion 13D of the pipe 13 (seat cushion 10) at the node N1, and the lower end is attached at the node N2. The member 12 is rotatably connected.

The second link 112 forms a four-bar link together with the first link 111, the second attachment portion 13D, and the attachment member 12, and the seat cushion 10 with respect to the floor F is moved when the seat cushion 10 is moved between the seating position and the storage position. It is a member for prescribing | regulating the attitude | position of.

The second link 112 is pivotally connected to the second mounting portion 13D at a position where the upper end is displaced from the node N1, specifically, a node N3 displaced upward and rearward of the node N1, and a lower end is connected to the node N2. It is rotatably connected to the mounting member 12 at a shifted position, specifically, at a node N4 shifted upward and rearward from the node N2. Further, the second link 112 is configured with a member thinner than the first link 111.

As shown in FIG. 3, a second connecting portion 106 that connects the support portion 101 and the first link 111 is provided between the first leg 100 and the second leg 110. The second connecting portion 106 is disposed below the extending portion 102.

As shown in FIG. 6A, the cushion body 11 is provided with a convex portion 11A protruding from the lower surface. The convex portion 11 A extends from the vicinity of the front end of the cushion body 11 to the rear end. A spacer 16 is provided between the floor F of the vehicle body and the seat cushion 10.

The spacer 16 is a cushioning material made of foamed resin such as foamed beads, which forms part of the vehicle body together with the floor F. The spacer 16 is configured to fill a gap between the seat cushion 10 and the floor F. As shown in FIG. 6B, the spacer 16 is provided with a groove 16A as an example of a first engaging portion and a second engaging portion extending in the front-rear direction at a position corresponding to the convex portion 11A. The groove 16A is configured to engage with the convex portion 11A when the seat cushion 10 is located at the seating position and the storage position (see also FIG. 8).

The operation of the vehicle seat 1 configured as described above will be described.
When the operation unit (not shown) is operated from the sitting state shown in FIG. 6A to release the locked state of the seat cushion 10 to the floor F, the seat cushion 10 is moved by the action of the spiral spring 103 (see FIG. 2). The first leg 100 and the second leg 110 rotate around the lower end and begin to move forward. Similarly, when the locked state of the seat back 20 to the floor F is released, the seat back 20 rotates about the rotation shaft 23 by the action of the spiral spring 25 and starts to move forward.

As shown in FIG. 7, the seat cushion 10 moves forward while the upper end is lifted by the rotation of the first leg 100 and the second leg 110. Here, due to the forward movement of the seat cushion 10, the attachment portions 13 C and 13 D rotate around the upper end of the first link 111, so that the rear end of the seat cushion 10 may jump upward. However, in the present embodiment, the second link 112 is connected to the second attachment portion 13D at the node N3 shifted to the rear of the first link 111 and the node N1, so that the rear portion of the second attachment portion 13D rotates upward. Since the movement is restricted, the jumping of the rear end portion of the seat cushion 10 is restricted.

Then, as shown in FIG. 8, the seat cushion 10 is moved forward and disposed with the front end in contact with the floor F. In this manner, the seat cushion 10 moves between the seating position at which the seat cushion 10 is seated and used and the storage position in front of the seating position.

Here, when the seat cushion 10 moves between the seating position and the storage position when the second link 112 restricts the jumping of the rear end portion, the seat cushion when the rear end portion is in the seating position is used. 10 moves below the horizontal plane H passing through the upper end of the front end. In other words, when the seat cushion 10 moves between the seating position and the storage position, the movement locus L of the rear end portion is located below the horizontal plane H.

When the seat cushion 10 is in the storage position, the rear end of the convex portion 11A and the front end of the groove 16A are engaged. Thereby, the seat cushion 10 can be positioned in the left-right direction at the storage position.

Further, the seat back 20 is tilted forward from the position of FIG. 6A, and the seat cushion in the storage position is provided at two locations, the headrest 30 portion and the upper end portion of the seat back 20, as shown in FIG. 10 is placed in contact with. In this way, the seat back 20 moves between the seating position where the seatback 20 is used while being seated and the storage position where the seatback 20 is tilted forward. Note that the seat cushion 10 and the seat back 20 may be moved from the seating position to the storage position at the same time when the lock is released, or may be moved at different timings.

As shown in FIG. 9, when the seat cushion 10 is in the storage position, the first protrusion 13 A and the second protrusion 13 B come into contact with the floor F. More specifically, when the seat cushion 10 is in the storage position, the first protrusion 13A comes into contact with the foot space part F2, and the second protrusion 13B comes into contact with the center tunnel F1.

On the other hand, after the seat back 20 is raised manually from the storage position in FIG. 8 and moved to the seating position in FIG. 6A, the seat back 20 is locked to the floor F. Further, after the seat back 20 is moved, the seat cushion 10 is moved manually from the storage position in FIG. 8 to the rear and moved to the seating position in FIG. Lock to F. Thereby, the seat cushion 10 and the seat back 20 are fixed in a state in which an occupant can be seated. When the seat cushion 10 moves from the seating position to the storage position, the rear end portion moves along a movement locus L shown in FIG. Since the rear end of the seat cushion 10 moves without being raised so much, the position of the center of gravity of the seat cushion 10 does not rise so much when the seat cushion 10 is returned to the storage position. The seat cushion 10 can be returned to the seating position by force. Note that the seat cushion 10 may be configured to be interlocked with the operation of the seat back 20.

According to the above, the following effects can be obtained in the present embodiment.
Since the movement locus L of the rear end when the seat cushion 10 moves between the seating position and the storage position is located below the horizontal plane H, the vertical movable range of the rear end of the seat cushion 10 is reduced. be able to. Therefore, when the seat cushion 10 and the seat back 20 move from the seating position to the storage position, it is possible to prevent the seat cushion 10 and the seat back 20 from interfering with each other.

Here, when the seat back is in a configuration in which only the seat back comes into contact with the seat cushion, the seat back and the seat cushion are relatively strongly hit, and the seat back contact mark tends to be attached to the cushion material and the skin material of the seat cushion. However, in the present embodiment, since the seat cushion 10 is contacted at the two locations of the headrest 30 and the seat back 20, contact marks on the seat cushion 10 can be reduced.

Further, since the convex portion 11A and the groove 16A are engaged at the seating position, the seat cushion 10 can be positioned at the seating position, and the seat cushion 10 is shifted to the left and right when moving from the seating position to the storage position. Can be suppressed.

Since the portion corresponding to the right extension portion 15A of the seat cushion 10 is supported by the extension portion 102, even if a load is applied to the right extension portion 15A, the load can be favorably received by the extension portion 102. it can. Therefore, the right overhanging portion 15A can be stably supported.

Since the extension part 102 is arrange | positioned on the center tunnel F1, it can suppress that the 1st leg 100 interferes with the center tunnel F1.

When the second projecting portion 13B comes into contact with the center tunnel F1 at the storage position, the right overhang portion 15A can be stably supported.

Since at least a part of the extension portion 102 is disposed between the pipe 13 and the reinforcing wire 14 in the front-rear direction, the extension portion 102 can be prevented from protruding in front of the vehicle seat 1. .

When the extension portion 102 is bent and connected to the pivot shaft 105 with the seat cushion 10, the bent portion, particularly the corner portion, has a large R shape. There is a possibility that members around the protruding portion 102 interfere with each other. However, in this embodiment, since a large R shape cannot be formed at the corner of the connecting portion between the extending portion 102 and the first connecting portion 104, when the first leg 100 is rotated, the connecting portion and the periphery of the extending portion 102 are not provided. The member is less likely to interfere. In addition, the clearance between the extending portion 102 and the seat cushion 10 can be secured by the first connecting portion 104.

Since the second link 112 is provided on the second leg 110 that does not have the extending portion 102, the second link 112 can be made smaller compared to a configuration in which a member corresponding to the second link is provided on the first leg. it can.

Since the second connecting portion 106 is provided on the support portion 101 and the second link 112, the rigidity of the first leg 100 and the second leg 110 can be increased.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention.

In the above embodiment, the seat cushion 10 has the convex portion 11A protruding from the lower surface, but the present invention is not limited to this, and as shown in FIG. 10, the seat cushion 10 has a concave portion 11B recessed from the lower surface. May be. In this case, the spacer 16 may be configured to have a spacer protrusion 16B that can be engaged with the recess 11B as the first engagement portion and the second engagement portion.

In the embodiment, the groove 16A of the spacer 16 is exemplified as the first engaging portion and the second engaging portion. However, the present invention is not limited to this, and the first engaging portion and the second engaging portion are configured separately. May be.

In the above embodiment, the convex portion 11A is provided on the seat cushion 10 and the groove 16A is provided on the spacer 16 (vehicle body). However, the present invention is not limited to this, and the convex portion 11A and the groove 16A are not provided. It may be a configuration.

In the above-described embodiment, the seat cushion 10 is configured to come into contact with the upper end of the headrest 30 and the seat back 20 at the time of storage. However, the present invention is not limited to this, and only the seat back is used as the seat cushion. You may comprise so that it may contact.

In the above embodiment, the center tunnel F1 is formed on the floor F, but the present invention is not limited to this, and a protruding portion from another floor F such as a tire house may be formed. In this case, the extending portion of the first leg may be disposed so as to pass over the protruding portion when the seat cushion moves.

In the above-described embodiment, at least a part of the extending portion 102 is disposed between the pipe 13 and the reinforcing wire 14 in the front-rear direction, but the present invention is not limited to this, and the pipe 13 and the reinforcing wire 14 It does not have to be arranged between them. In addition, at least a part of the extending portion may be disposed between the pipe and the reinforcing wire in the vertical direction. According to this, it can suppress that an extension part protrudes below the vehicle seat.

In the said embodiment, although the 2nd protrusion part 13B was provided in the pipe 13, this invention is not limited to this, It is not necessary to provide a 2nd protrusion part, and it is 2nd in the member different from a pipe. A protrusion may be provided.

In the embodiment, the first connecting portion 104 made of another member is provided in the extending portion 102. However, the present invention is not limited to this, and the first connecting portion is configured by bending the extending portion. May be.

In the above-described embodiment, the second link 112 is provided on the second leg 110. However, the present invention is not limited to this, and a configuration may be adopted in which a link member corresponding to the second link is provided on the first leg.

In the above embodiment, the second connecting portion 106 is provided on the first leg 100 and the second leg 110, but the present invention is not limited to this, and the second connecting portion may not be provided.

In the said embodiment, although the vehicle seat 1 used with a motor vehicle was illustrated as a vehicle seat, this invention is not limited to this, For example, it uses with a rail vehicle, a ship, an aircraft, etc. It can also be applied to a sheet to be processed.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 10 Seat cushion 11A Convex part 13 Pipe 13B 2nd protrusion part 14 Reinforcement wire 16 Spacer 16A Groove 20 Seat back 30 Headrest 100 1st leg 101 Support part 102 Extension part 104 1st connection part 105 Rotating shaft 106 2nd connection part 110 2nd leg 111 1st link 112 2nd link F Floor F1 Center tunnel H Horizontal surface

Claims

A seat cushion that is movable between a seating position at which the user is seated and used and a storage position in front of the seating position; a seating position at which the user is seated and used; and a storage position that is tilted forward A vehicle seat having a seat back movable between,
When the seat cushion moves between the seating position and the storage position, the rear end portion moves below a horizontal plane passing through the upper end of the front end portion of the seat cushion at the seating position. A vehicle seat characterized in that it is configured.
A headrest provided on the seat back;
The headrest is configured to contact the seat cushion when the seat cushion and the seatback are positioned at the storage position, and the seatback is configured to contact the seat cushion. The vehicle seat according to 1.
The seat cushion has a convex portion protruding from the lower surface or a concave portion recessed from the lower surface,
The said convex part or the said recessed part is provided so that it can engage with the 1st engaging part provided in the vehicle main body, when the said seat cushion is located in the said seating position. Item 3. The vehicle seat according to Item 2.
The said convex part or the said recessed part is provided so that it can engage with the 2nd engaging part provided in the said vehicle main body, when the said seat cushion is located in the said storage position. The vehicle seat described.
A first leg and a second leg, one end of which is rotatably connected to the front portion of the seat cushion and the other end of which is rotatably connected to the vehicle body;
The seat cushion has a projecting portion that projects outward from the left and right sides of the mounting position of the first leg and the second leg to the vehicle body,
Of the left and right overhang portions, the overhang portion on the first leg side has a larger overhang amount than the overhang portion on the second leg side,
The said 1st leg has a support part extended so that it may approach the said seat cushion from the said other end, and the extension part extended in the left-right direction outer side from the said support part, The Claim 1 characterized by the above-mentioned. The vehicle seat according to any one of 4.
The extension portion is disposed so as to pass over a front and rear main body protrusion formed on the floor of the vehicle main body when the seat cushion moves between the seating position and the storage position. The vehicle seat according to claim 5, wherein the vehicle seat is provided.
The seat cushion protrudes downward from the overhanging portion on the first leg side, and has a protruding portion that can contact the main body protruding portion,
The vehicle seat according to claim 6, wherein the protruding portion is provided on the outer side in the left-right direction with respect to the extending portion.
The seat cushion includes a pipe provided in a front portion and extending in a left-right direction, and a wire provided so as to pass through the front of the pipe;
The vehicle seat according to any one of claims 5 to 7, wherein at least a part of the extending portion is disposed between the pipe and the wire in the front-rear direction.
The first leg has a first connecting portion extending from the extending portion toward a rotation axis with the seat cushion,
The vehicle seat according to any one of claims 5 to 8, wherein the first connecting portion includes a member different from the extending portion and is fixed to the extending portion. .
The second leg is
A first link having one end rotatably connected to the seat cushion and the other end rotatably connected to the vehicle body;
One end is pivotally connected to the seat cushion at a position shifted from the first link and the node of the seat cushion, and the other end is connected to the vehicle at a position shifted from the node of the first link and the vehicle body. The vehicle seat according to any one of claims 5 to 9, further comprising a second link coupled to the main body.
11. The vehicle according to claim 5, further comprising a second connecting portion that is disposed below the extending portion and connects the support portion and the second leg. Sheet.