Vehicle seat

Abstract

Provided is a vehicle seat that allows for smooth performance of switching operations of an armrest and a drawing-out member.　A vehicle seat (S1) comprises: a seat body (Sa); an armrest (10); a switching device (40) that switches the armrest between a normal position and a moved position with respect to the seat body; and a drawing-out member (30) that can be deployed from the armrest. The drawing-out member (30) is configured to be switchable between an accommodation position, at which the drawing-out member is accommodated in the armrest (10), and a deployed position at which the drawing-out member is deployed from the armrest. The switching device (40) has: a first lock member that locks the armrest when the armrest (10) is at the moved position; a second lock member that locks the drawing-out member when the drawing-out member (30) is at the deployed position; and an operation lever (50) that is connected to the first lock member and the second lock member and that is operated to release the locked states of the first lock member and the second lock member.

Description

Vehicle seats

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a seat body and armrests provided on the sides of the seat body.

[0002] A vehicle seat is known that includes a seat back, an armrest rotatably attached to the seat back, and a table stored inside the armrest. By pulling out the table from the armrest, a passenger positioned behind the vehicle seat can use the table.

[0003] For example, in the vehicle seats of Patent Documents 1 and 2, the armrest can be switched between a normal position and a rotated position rotated rearward from the normal position and can be fixed in the rotated position, and the table can be switched between a stored position and an extended position extended from the stored position and can be fixed in the extended position.

[0004] JP 2001-321244 A JP 2005-289080 A

[0005] In vehicle seats such as those disclosed in Patent Documents 1 and 2, there is a need for smoother switching operations of the armrest and the drawer member (table) stored in the armrest. For example, when the armrest is rotated to deploy the drawer member, there is a need for smoother locking operations of the armrest and the drawer member. In other words, if the armrest and the drawer member cannot be locked smoothly, there is a risk that the drawer member will unintentionally deploy when the armrest is rotated.

[0006] An object of the present invention is to provide a vehicle seat that allows the switching operation of the armrest and the switching operation of the drawer member stored in the armrest to be performed more smoothly than in the past.

[0007] The above-mentioned object is achieved by a vehicle seat of the present invention, which comprises a seat body, an armrest provided on a side portion of the seat body, a switching device for switching the armrest relative to the seat body between a normal position and a moved position moved from the normal position, and a drawer member attached to be deployable from the armrest, the drawer member being switchable between a stored position stored in the armrest and a deployed position deployed from the armrest, the switching device having a first locking member for locking movement of the armrest when the armrest is in the moved position, a second locking member for locking movement of the drawer member when the drawer member is in the deployed position, and operating members connected to the first locking member and the second locking member, respectively, and operated to unlock the first locking member and the second locking member. With the above configuration, a vehicle seat can be realized which allows for smoother switching operations of the armrest and the drawer member stored in the armrest than conventionally possible. More specifically, in the vehicle seat, an operating member is connected to each of the first locking member and the second locking member, and is operated to unlock the first locking member and the second locking member. The operating member can be used to unlock the first locking member and the second locking member. This allows for smooth switching of the armrest and the drawer member, as well as locking and unlocking of both. As an example, a single operating member can be used to lock (unlock) the armrest and the drawer member.

[0008] In this case, the switching device may include a first biasing member that biases the first locking member from the unlocked state to the locked state and a second biasing member that biases the second locking member from the unlocked state to the locked state, and the switching device may move the first locking member biased by the first biasing member from the locked state to the unlocked state in accordance with the amount of operation of the operating member, and move the second locking member biased by the second biasing member from the locked state to the unlocked state in accordance with the amount of operation of the operating member. With the above configuration, for example, the first locking member and the second locking member can be moved stepwise from the locked state to the unlocked state in accordance with the amount of operation of the operating member.

[0009] In this case, the operating member is attached to the armrest so as to be rotatable between a first rotation position and a second rotation position, and the switching device moves one of the first locking member and the second locking member from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the first rotation position, and moves the other of the first locking member and the second locking member or both from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the second rotation position. With the above configuration, the locked state of the first locking member and the locked state of the second locking member can be released depending on the rotation position of the operating member.

[0010] In this case, the switching device may include a linear first connecting member that connects the operating member and the first locking member, and a linear second connecting member that connects the operating member and the second locking member and has a length different from that of the first connecting member, and the switching device unlocks the first locking member and the second locking member by pulling the first connecting member and the second connecting member as the operating member is operated. With the above configuration, it is possible to selectively unlock the first locking member and the second locking member depending on the amount of operation (pulling operation amount) of the operating member.

[0011] In this case, the operating member is an operating lever, which has a lever operating portion operated by the occupant and a lever support portion that is inserted into the armrest and supported by the armrest frame, and the armrest frame is formed with a first through hole and a second through hole that penetrate the operating lever in the longitudinal direction and allow the lever support portion to pass through, and the switching device maintains the locked state of the first locking member and the second locking member by causing the lever support portion to abut against the armrest frame when the operating member is in the reference position, moves the first locking member to the unlocked state when the operating member is in the first pivot position by causing the lever support portion to pass through the first through hole in response to operation of the operating member, and moves the first locking member to the unlocked state when the operating member is in the second pivot position by causing the lever support portion to pass through the second through hole in response to operation of the operating member. With the above configuration, a single operating member can be used to unlock the first locking member and the second locking member depending on the rotational position of the operating member, thereby preventing the drawer member from unintentionally extending from the armrest.

[0012] In this case, the switching device comprises a first connecting member that connects the operating member and the first locking member, and a second connecting member that connects the operating member and the second locking member, the operating member being an operating lever that has a lever operating portion that is operated by an occupant and a lever support portion that is inserted into the interior of the armrest and supported by an armrest frame, a first engaging member attached to one end of the first connecting member, and a second engaging member attached to one end of the second connecting member, and when the operating member is in the first pivot position and the lever support portion is engaged with the first engaging member, the switching device moves the first locking member from a locked state to an unlocked state in response to operation of the operating member, and when the operating member is in the second pivot position and the lever support portion is engaged with the second engaging member, the switching device moves the second locking member from a locked state to an unlocked state in response to operation of the operating member. With the above configuration, it is possible to use one operating member to unlock the first locking member and the second locking member depending on the rotational position of the operating member.

[0013] In this case, the switching device may include a pivot shaft that pivotally mounts the armrest to the seat body, and the first locking member may be a lock pin that engages with a lock groove formed on the outer surface of the pivot shaft. With the above configuration, the pivoting movement of the armrest can be locked or unlocked with a simple structure.

[0014] In this case, the locking groove is preferably formed in an arc shape centered on the axis of the pivot shaft and passes above the axis, the locking pin moves along the locking groove while engaging with the locking groove as the armrest is rotated, and a step portion is preferably formed at the upper end of the locking groove. As described above, by forming a step portion in the locking groove, the armrest is prevented from rotating too quickly from the normal position to the moved position, allowing the occupant to move the armrest stably. For example, the armrest can be stopped once in a position facing upward.

[0015] In this case, the lock groove may have an arc shape centered on the axis of the pivot shaft and include a first groove portion that passes above the axis, and a second groove portion that is formed continuous with the rear end of the first groove portion and extends forward from the rear end of the first groove portion toward the axis, and the switching device may lock the movement of the armrest by engaging the lock pin with the second groove portion when the armrest is in the moving position. With the above configuration, the armrest can be suitably locked when the lock pin engages with the second groove portion, i.e., when the armrest is in the moving position.

[0016] In this case, the switching device preferably includes a first biasing member that biases the first locking member from the unlocked state to the locked state, and a second biasing member that biases the second locking member from the unlocked state to the locked state and has a biasing force different from that of the first biasing member.With the above configuration, the armrest and the drawer member can be unlocked depending on the amount of pulling of the operating member (depending on the strength of the pulling force).For example, the armrest can be unlocked by pulling the operating member lightly, and the drawer member can be unlocked by pulling the operating member strongly.

[0017] In this case, the drawer member may be stored in a storage recess provided in the armrest, and the switching device may include a sliding member provided in the armrest for slidably supporting the drawer member, and a drawer biasing member for biasing the drawer member from the stored position to the deployed position when the second locking member is unlocked. With the above configuration, the drawer member can be automatically deployed when the drawer member is unlocked.

[0018] In this case, the seat body has a seat cushion and a seat back, the armrest is rotatably attached to a back frame of the seat back, and the drawer member is a table that can be pulled out from the armrest, or a drawer that can be pulled out from the armrest and can store items. With the above configuration, the occupant can smoothly pull out the table (drawer) stored in the armrest and use the table (drawer).

[0019] According to the present invention, a vehicle seat can be realized that allows smooth switching of the armrest and the drawer member stored in the armrest. More specifically, the armrest and the drawer member can be smoothly switched, and both can be locked and unlocked. According to the present invention, for example, the first locking member and the second locking member can be moved stepwise from a locked state to an unlocked state in accordance with the amount of operation of the operating member. According to the present invention, the first locking member and the second locking member can be unlocked in accordance with the rotational position of the operating member. According to the present invention, the first locking member and the second locking member can be selectively unlocked depending on the amount of pulling of the operating member. According to the present invention, a single operating member can be used to unlock the first locking member and the second locking member in accordance with the rotational position of the operating member. According to the present invention, the rotational movement of the armrest can be locked or unlocked using a simple structure. According to the present invention, the occupant can move the armrest stably. According to the present invention, the armrest and the drawer member can be unlocked depending on the amount of pulling of the operating member. According to the present invention, the drawer member can be automatically deployed in conjunction with the unlocking of the drawer member. According to the present invention, the occupant can smoothly pull out the table (drawer) stored in the armrest and use the table.

[0020] 1 is a perspective view of a vehicle seat according to a first embodiment;

[0023] FIG. 1 is a perspective view of a vehicle seat, showing a state in which the armrest is in a "moved position" and the drawer member is in a "deployed position";

[0024] FIG. 2 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "normal position";

[0025] FIG. 3 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "normal position" and the drawer member is in a "storage position";

[0026] FIG. 4 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "moved position";

[0027] FIG. 5 is a perspective view of an armrest according to a first modified example, showing a state in which the armrest is in a "moved position" and the drawer member is in a "storage position";

[0028] FIG. 6 is a perspective view of an armrest according to a second modified example, showing a state in which the armrest is in a "moved position" and the drawer member is in a "storage position";

[0029] FIG. 7 is a perspective view of an armrest according to a second modified example, showing a state in which the armrest is in a "moved position" and the drawer member is in a "storage position";

[0029] FIG. 8 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "moved position";

[0029] 1 is a perspective view of an armrest of Modified Example 3, showing a state in which the armrest is in the "moved position" and the drawer member is in the "stored position". FIG. 2 is a view showing a state in which the armrest is in the "moved position" and the drawer member is in the "extended position". FIG. 3 is a perspective view of a vehicle seat of a second embodiment, showing a state in which the armrest is in the "moved position" and the drawer member is in the "extended position". FIG. 4 is a side cross-sectional view of the armrest, showing a state in which the armrest is in the "normal position". FIG. 5 is a view showing a state in which the armrest is in the "normal position" and the drawer member is in the "stored position". FIG. 6 is a side cross-sectional view of the armrest, showing a state in which the armrest is in the "moved position". FIG. 7 is a view showing a state in which the armrest is in the "moved position" and the drawer member is in the "extended position". FIG. 8 is a side cross-sectional view of a front portion of the armrest, showing a state in which the operating lever is in the "reference position". FIG. 9 is a view showing a state in which the operating lever is in the "first pivoted position". FIG. 10 is a view showing a state in which the operating lever is in the "second pivoted position". 1 is a perspective view of a vehicle seat according to a third embodiment, showing a state in which the armrest is in a "moved position" and the drawer member is in an "extended position." FIG. 2 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "normal position."10 is a diagram showing a state in which the armrest is in a "normal position" and the drawer member is in a "storage position". FIG. 11 is a side cross-sectional view of the armrest showing a state in which the armrest is in a "moved position". FIG. 12 is a diagram showing a state in which the armrest is in a "moved position" and the drawer member is in a "deployed position". FIG. 13 is a diagram showing a rotation shaft inside the armrest, showing a state in which the armrest moves with the first locking member engaged with the lock groove. FIG. 14 is a diagram showing a rotation shaft inside the armrest of Modified Example 4, showing a state in which the first locking member is engaged with a front portion of the lock groove. FIG. 15 is a diagram showing a state in which the first locking member is engaged with an upper portion of the lock groove. FIG. 16 is a diagram showing a state in which the first locking member is engaged with a rear portion of the lock groove. FIG. 17 is a perspective view of the front part of the armrest, showing a state in which the operating lever is in a "standard position". FIG. 18 is a diagram showing a state in which the operating lever is in a "first rotated position". FIG. 19 is a diagram showing a state in which the operating lever is in a "second rotated position". FIG. 19 is a perspective view of a vehicle seat of a fourth embodiment, showing a state in which the armrest is in a "moved position" and the drawer member is in a "deployed position". 10 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "normal position". FIG. 11 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "normal position" and the drawer member is in a "storage position". FIG. 12 is a side cross-sectional view of the armrest, showing a state in which the armrest is in a "moved position". FIG. 13 is a view of a state in which the armrest is in a "moved position" and the drawer member is in a "deployed position". FIG. 14 is an overall view of a vehicle interior system of a fifth embodiment, showing a state in which a cushion body is attached to a seat main body. FIG. 15 is a view of a state in which a cushion body is attached to a vehicle door (door lining). FIG. 16 is a perspective view of a vehicle seat. FIG. 17 is an exploded perspective view of the vehicle door and the cushion body. FIG. 18 is a flow diagram showing an example of control processing by a control device. FIG. 19 is an overall view of a vehicle interior system of a sixth embodiment, showing a state in which a cushion body and a second cushion body (headrest) are attached to a vehicle door. FIG. 19 is a cross-sectional view of a vehicle door, showing an exploded view of the vehicle door, the cushion body, and the second cushion body. FIG. 19 is an assembly diagram of the vehicle door, the cushion body, and the second cushion body. FIG. 20 is a side view of a vehicle seat of a seventh embodiment. FIG. 2 is a front view of the left side of the vehicle seat, illustrating the positional relationship of each component.10 is a diagram showing the seat cushion in a used state; FIG. 11 is a diagram showing the seat cushion in a folded state; FIG. 12 is a side view of a vehicle seat according to Modification 1, showing the seat cushion in a used state; FIG. 13 is a diagram showing the seat cushion of Modification 1 in a folded state; FIG. 14 is a side view of a vehicle seat according to an eighth embodiment, showing the seat cushion in a used state; FIG. 15 is a diagram showing the seat cushion of the eighth embodiment, showing the folded state; FIG. 16 is a diagram showing the seat cushion of Modification 2 in a used state; FIG. 17 is a side view of a vehicle seat according to a ninth embodiment, showing the seat cushion in a used state; FIG. 18 is a diagram showing the seat cushion of the ninth embodiment, showing the seat cushion in a folded state; FIG. 19 is a diagram showing the seat cushion of the ninth embodiment, showing the seat cushion in a tip-up state; FIG. 19 is a perspective view of a vehicle seat according to a tenth embodiment, showing a state in which the cover is fixed to the floor.

[0021] Hereinafter, embodiments of the present invention will be described with reference to Figures 1 to 41. The first to fourth embodiments relate to a "vehicle seat" that allows smooth switching of the armrest and the drawer member stored in the armrest. Note that the side of the vehicle seat where a seat occupant sits relative to the seat back (headrest) is the front side of the seat (front side).

[0022] First Embodiment First, a vehicle seat S1 according to a first embodiment will be described with reference to Figures 1 to 7B. As shown in Figure 1, the vehicle seat S1 is a vehicle seat that is a front seat or a middle seat that is located at the front of the vehicle. Note that the vehicle seat S1 may also be a rear seat.

[0023] 1 and 2, the vehicle seat S1 is a seat in which the armrest 10 can be switched between a "normal position" and a "moved position (rotated position)" in which the armrest 10 is moved rearward from the normal position relative to the seat body Sa. The vehicle seat S1 is also a seat in which the drawer member 30 inside the armrest 10 can be switched between a "stored position" in which the drawer member 30 is stored in the armrest 10 and an "extended position" in which the drawer member 30 is extended from the armrest 10. In the vehicle seat S1, an occupant seated in the seat body Sa can operate the operating lever 50 to switch both the armrest 10 and the drawer member 30.

[0024] The vehicle seat S1 includes a seat body Sa having a seat cushion 1, a seat back 2, and a headrest 3, an armrest 10 attached to a side portion of the seat back 2, a drawer member 30 attached inside the armrest 10, and a switching device 40 that rotatably connects the armrest 10 to the seat back 2 and deployably connects the drawer member 30 to the armrest 10. The switching device 40 includes an operating lever 50 for switching between the armrest 10 and the drawer member 30. The vehicle seat S1 further includes a reclining device that rotatably connects the seat back 2 to the seat cushion 1, a height link device that connects the seat body Sa to the vehicle floor so that it can be raised and lowered, and a rail device that supports the seat body Sa so that it can move back and forth relative to the vehicle floor.

[0025] As shown in Fig. 1, the seat cushion 1 is a seating portion that supports a seated occupant from below and includes a cushion frame 1a as a skeleton, a padding 1b placed on the cushion frame 1a, and a covering material 1c that covers the cushion frame 1a and the padding 1b. The seat back 2 is a backrest portion that supports the seated occupant from behind and includes a back frame 2a as a skeleton, a padding 2b, and a covering material 2c. The headrest 3 is a head portion that supports the seated occupant's head from behind.

[0026] As shown in FIGS. 1 to 4B , the armrest 10 is a component that supports the arms of a seated occupant from below. The armrest 10 includes an armrest frame 20 as a framework, a padding material 10a placed on the armrest frame 20, and a cover material 10b that covers the armrest frame 20 and the padding material 10a. The armrest 10 is rotatably attached to the seat back 2 (back frame 2a) via a switching device 40 (rotation shaft 41). When the armrest 10 is in the "normal position" shown in FIG. 1 , the armrest 10 is used by an occupant seated in the vehicle seat S1 to support the occupant's arms. When the armrest 10 is in the "moved position" shown in FIG. 2 , the armrest 10 is used by a second occupant seated at a position rearward of the vehicle seat S1. For example, the second occupant can use the armrest 10 and the drawer member 30 as a table.

[0027] 3A and 4A, the armrest frame 20 is also used as a frame that supports the drawer member 30 and the switching device 40 that are assembled inside the armrest 10. Specifically, the armrest frame 20 includes a shaft support frame 21 that supports the rotation shaft 41 of the switching device 40, a lever support frame 22 that supports the operating lever 50, a wire support frame 23 that supports the connecting wires 61, 71, and a table support frame 24 that supports the drawer member 30.

[0028] 1 to 4B, the drawer member 30 is a table that can be pulled out from the armrest 10 and is used by a second occupant seated at a position rearward of the vehicle seat S1. The drawer member 30 may be a drawer that can be pulled out from the armrest 10 and that can store items.

[0029] The drawer member 30 is attached so as to be slidable outward in the seat width direction from the side of the armrest 10. As shown in Figures 1 and 2, the drawer member 30 is switchable between a "storage position" in which it is stored in a storage recess 11 formed on the outer surface of the armrest 10 (armrest frame 20), and an "extended position" in which it is pulled out straight to the side from the armrest 10. The drawer member 30 is configured to be switchable by a switching device 40, and is deployed to the "extended position" when it is unlocked by operating an operating lever 50.

[0030] As shown in Figures 3B and 4B, the drawer member 30 has a plate-shaped drawer body 31, a plurality of locking grooves 32 formed on the top surface of the drawer body 31 and spaced apart in the seat width direction, and left and right spring holding portions 33 formed at both longitudinal ends of the drawer body 31 for holding drawer biasing springs 81. The use of the locking grooves 32 improves the appearance of the surface of the drawer member 30. On the other hand, using locking holes (through holes) instead of the locking grooves 32 increases the engagement force. The drawer member 30 is supported by the armrest frame 20 (table support frame 24) in a state where it is biased by the drawer biasing springs 81 from the "storage position" to the "extended position."

[0031] 3A to 4B, the switching device 40 has a function of switching the armrest 10 between a "normal position" and a "moved position" relative to the seat body Sa, and a function of switching the drawer member 30 between a "storage position" and an "extended position" relative to the armrest 10. More specifically, the switching device 40 is a device that locks the movement of the armrest 10 and the movement of the drawer member 30, respectively, and unlocks the movement of the armrest 10 and the movement of the drawer member 30 in accordance with the operation of the operating lever 50. Furthermore, with the switching device 40, the armrest 10 and the drawer member 30 can be unlocked with a single operating lever 50.

[0032] Specifically, the switching device 40 includes a rotation shaft 41 that rotatably attaches the armrest 10 to the seat back 2, an operation lever 50 that is operated to release the locked state of the armrest 10 and the drawer member 30, a first lock pin 60 that locks the movement of the armrest 10, and a second lock pin 70 that locks the movement of the drawer member 30. The switching device 40 also includes a first connecting wire 61 that connects the operation lever 50 and the first lock pin 60, a first biasing spring 62 that biases the first lock pin 60 to the locked state, a second connecting wire 71 that connects the operation lever 50 and the second lock pin 70, and a second biasing spring 72 that biases the second lock pin 70 to the locked state. A first lock groove 41b, a second lock groove 41c, and a third lock groove 41d are formed on the outer surface of the rotation shaft 41 so as to be aligned along a circumference centered on an axis 41a of the rotation shaft 41.

[0033] 3A and 4A , the operating lever 50 is attached to a front portion of the armrest 10 and is disposed so as to protrude outward from the armrest 10. The operating lever 50 has a lever operating portion 51 that protrudes forward from the armrest 10 and is operated by the occupant, a lever extension portion 52 that is inserted from the lever operating portion 51 into the armrest 10, a lever support portion 53 that is provided at the extending end of the lever extension portion 52 and is supported by the armrest frame 20 (lever support frame 22), and a lever biasing spring 54 that biases the lever operating portion 51 toward the armrest 10 in the length direction of the armrest 10. When the operating lever 50 is pulled forward against the biasing force of the lever biasing spring 54, the switching device 40 moves the first lock pin 60 and the second lock pin 70 from the "locked position (locked state)" to the "unlocked position (unlocked position)."

[0034] 3A to 4B, the first lock pin 60 is a locking member that locks the rotation of the armrest 10 by engaging with the lock grooves 41b, 41c, and 41d formed on the outer surface of the rotation shaft 41. The first lock pin 60 is fixed to the extending end of the first connecting wire 61, and is switchable between a "locked position (locked state)" in which it is engaged with the lock grooves 41b to 41d, and an "unlocked position (unlocked state)" in which it is disengaged from the lock grooves 41b to 41d. The first lock pin 60 is biased by a first biasing spring 62, and is therefore positioned in the "locked position" in which it is engaged with the lock grooves 41b to 41d. The first lock pin 60 engages with the first lock groove 41b when the armrest 10 is in the "normal position" shown in Figure 3A, engages with the second lock groove 41c when the armrest 10 is in the "upper position" not shown, and engages with the third lock groove 41d when the armrest 10 is in the "moved position" shown in Figure 4A.

[0035] The first connecting wire 61 is a linear connecting member that extends in the front-to-rear direction of the seat along the interior of the wire support frame 23, and connects the operating lever 50 (lever support portion 53) and the first lock pin 60. When the operating lever 50 is pulled, the first connecting wire 61 pulls the first lock pin 60 forward from the "locked position" to the "unlocked position." When the first lock pin 60 moves to the "unlocked position," the armrest 10 can rotate about the rotation shaft 41.

[0036] As shown in FIGS. 3A to 4B , the second lock pin 70 is a locking member that locks the sliding movement of the drawer member 30 by engaging with the lock groove 32 formed on the top surface of the drawer member 30. The second lock pin 70 is fixed to the extended end of the second connecting wire 71 and is switchable between a "locked position" in which it is engaged with the lock groove 32 and an "unlocked position" in which it is disengaged from the lock groove 32. The second lock pin 70 is biased by a second biasing spring 72 to be placed in the "locked position" in which it is engaged with the lock groove 32. The second lock pin 70 engages with the leftmost lock groove 32 when the drawer member 30 is in the "stored position" shown in FIG. 3B , and engages with the rightmost lock groove 32 when the drawer member 30 is in the "extended position" shown in FIG. 4B .

[0037] The second connecting wire 71 is a linear connecting member that extends in the front-to-rear direction of the seat and downward along the inside of the wire support frame 23, and connects the operating lever 50 (lever support portion 53) and the second lock pin 70. More specifically, the second connecting wire 71 extends a long length rearward from the operating lever 50, is guided by the guide pin 73, bends downward, and is connected to the second lock pin 70.

[0038] The second connecting wire 71 pulls the second lock pin 70 upward from the "locked position" to the "unlocked position" as the operating lever 50 is pulled. When the second lock pin 70 moves to the "unlocked position," the drawer member 30 can slide outward in the seat width direction from the armrest 10. By engaging the second lock pin 70 with any of the lock grooves 32, the deployed length of the drawer member 30 can be adjusted and then the drawer member 30 can be fixed.

[0039] With the above configuration, the switching device 40 can move the first lock pin 60, which is biased by the first biasing spring 62, from the "locked state" to the "unlocked state" in accordance with the amount of operation of the operating lever 50, and can move the second lock pin 70, which is biased by the second biasing spring 72, from the "locked state" to the "unlocked state". In other words, the armrest 10 and the drawer member 30 can be unlocked using a single operating lever 50. The switching device 40 unlocks the first lock pin 60 and the second lock pin 70 almost simultaneously in response to operation of the operating lever 50. In other words, the first lock pin 60 and the second lock pin 70 disengage from the lock groove 41b and the lock groove 32 at almost the same time.

[0040] 4A and 4B, the switching device 40 is provided inside the armrest 10 and further includes a sliding member 80 that slidably supports the drawer member 30, and a drawer biasing spring 81 that biases the drawer member 30 from the "storage position" to the "extended position." The sliding member 80 is, for example, a sliding rail (sliding guide) that is provided at both ends of the drawer member 30 in the longitudinal direction and slides the drawer member 30. This allows the drawer member 30 to be smoothly and automatically extended when the drawer member 30 is unlocked.

[0041] With the vehicle seat S1 described above, it is possible to realize a seat that allows the armrest 10 and the drawer member 30 to be switched smoothly.

[0042] <<Modification 1>> Modification 1 of the vehicle seat S1 will be described with reference to Figures 5A and 5B. Figure 5A is a diagram showing the armrest 10 in the "moved position" and the drawer member 30 in the "stored position." Figure 5B is a diagram showing the drawer member 30 in the "extended position." In Modification 1, a first drawer member 30A and a second drawer member 30B are stored inside the armrest 10, and can each be extended outward from the armrest 10 in the seat width direction.

[0043] The first drawer member 30A and the second drawer member 30B are positioned so that they overlap one another when in the "storage position," and are locked by second lock pins 70A and 70B, respectively. The switching device 40 unlocks the second lock pins 70A and 70B by operating the operating lever 50 to pull the second connecting wires 71A and 71B. With the unlocking of the second lock pins 70A and 70B, the first drawer member 30A and the second drawer member 30B are deployed in opposite directions from the armrest 10. With the above configuration, the passenger can conveniently use the armrest 10 and the drawer members 30A and 30B as a table. Alternatively, the drawer members 30A and 30B can be used as drink holders.

[0044] <<Modification 2>> Modification 2 of the vehicle seat S1 will be described with reference to Figures 6A and 6B. Figure 6A is a diagram showing the armrest 10 in the "moved position" and the drawer member 30 in the "stored position." Figure 6B is a diagram showing the drawer member 30 in the "extended position." In Modification 2, a first drawer member 30A and a second drawer member 30B are stored inside the armrest 10, and can each be extended outward from the armrest 10 in the seat width direction.

[0045] The first drawer member 30A and the second drawer member 30B are arranged side by side when in the "storage position" and are locked by second lock pins 70A and 70B, respectively. The switching device 40 unlocks the second lock pins 70A and 70B by operating the operation lever 50 to pull the second connecting wires 71A and 71B. With the unlocking of the second lock pins 70A and 70B, the first drawer member 30A and the second drawer member 30B are deployed in opposite directions from the armrest 10. Even with the above configuration, the armrest 10 and the drawer members 30A and 30B can be conveniently used by the occupant as a table.

[0046] <<Modification 3>> Modification 3 of the vehicle seat S1 will be described with reference to Figures 7A and 7B. Figure 7A is a diagram showing the armrest 10 in the "moved position" and the drawer member 30 in the "stored position." Figure 7B is a diagram showing the drawer member 30 in the "extended position." In Modification 3, a first drawer member 30A and a second drawer member 30B are stored on the bottom surface of the armrest 10 (the upper surface when the armrest 10 is rotated), and can be extended outward from the armrest 10 in the seat width direction. The first drawer member 30A and the second drawer member 30B are arranged side by side when in the "stored position." The first drawer member 30A and the second drawer member 30B are each rotated upward to be extended in opposite directions from the armrest 10. It is preferable that the switching device 40 releases the locked state of the second locking members 70A, 70B in response to the operation of the operating lever 50, and the drawer members 30A, 30B are unfolded. Even with the above configuration, the occupant can suitably use the armrest 10 and the drawer members 30A, 30B as a table.

[0047] Second Embodiment Next, a vehicle seat S2 according to a second embodiment will be described with reference to Figures 8 to 11C. Description of the same content as that of the vehicle seat S1 described above will be omitted.

[0048] 8, the vehicle seat S2 is a seat in which the drawer member 130 inside the armrest 110 can be switched between a "storage position" and an "extended position." In the vehicle seat S2, the occupant can switch the armrest 110 and the drawer member 130 by operating the operation lever 150.

[0049] The vehicle seat S2 includes an armrest 110, a drawer member 130, and a switching device 140. As shown in Figures 8 to 9B, the armrest 110 includes an armrest frame 120 and is attached to the seat back 102 via the switching device 140. The armrest 110 is switchable between a "normal position" shown in Figures 9A and 9B and a "moved position (rotated position)" shown in Figures 10A and 10B.

[0050] The armrest frame 120 includes an axis support frame 121 that supports the pivot axis 141, a lever support frame 122 that supports the operating lever 150, a wire support frame 123 that supports each connecting wire 161, 171, and a table support frame 124 that supports the drawer member 130.

[0051] As shown in Figure 8, the drawer member 130 is attached so as to be slidable inward in the seat width direction from the side of the armrest 110. The drawer member 130 is switchable between a "stored position" in which it is stored in the armrest 110 and an "extended position" in which it is pulled out straight to the side from the armrest 110. As shown in Figures 9A and 9B, the drawer member 130 has a drawer main body 131, a plurality of locking grooves 132, and left and right spring holding portions 133.

[0052] 9A and 9B , the switching device 140 can unlock the armrest 110 and the drawer member 130 with a single operating lever 150. The switching device 140 includes a rotating shaft 141, the operating lever 150, a first lock pin 160 that locks the armrest 110, and a second lock pin 170 that locks the drawer member 130. The switching device 140 also includes a first connecting wire 161, a first biasing spring 162, a second connecting wire 171, and a second biasing spring 172. Locking grooves 141b are formed on the outer surface of the rotating shaft 141 so as to be aligned along a circumference centered on an axis 141a of the rotating shaft 141.

[0053] The first lock pin 160 locks the rotation of the armrest 110 by engaging with a lock groove 141b formed on the outer surface of the rotation shaft 141. When the operating lever 150 is pulled, the first connecting wire 161 pulls the first lock pin 160 forward from the "locked position" to the "unlocked position."

[0054] The second lock pin 170 is a locking member (comb-shaped member) with multiple protrusions, and can suitably lock the long drawer member 130. The second lock pin 170 engages with a locking groove 132 formed on the top surface of the drawer member 130 to lock the sliding movement of the drawer member 130. The second connection wire 171 is a linear connecting member that extends in the front-to-rear direction of the seat and downward, and has a slack portion 171a. When the operating lever 150 is pulled, the second connection wire 171 pulls the second lock pin 170 upward from the "locked position" to the "unlocked position."

[0055] As described above, the first connecting wire 161 and the second connecting wire 171 have different lengths. That is, the second connecting wire 171 has a slack portion 171a. In this way, in the switching device 140, first, the first connecting wire 161 is pulled in accordance with the "first operation amount" of the operating lever 150, thereby unlocking the locked state of the first lock pin 160. Then, the second connecting wire 171 is pulled in accordance with the "second operation amount" of the operating lever 150, thereby unlocking the locked state of the second lock pin 170. The "second operation amount" is a pulling operation amount that is greater than the "first operation amount."

[0056] 9A, 9B, and 11A to 11C, the operating lever 150 is disposed so as to protrude forward from the armrest 110. The operating lever 150 is attached to the armrest 110 so as to be rotatable between a "reference position (first rotation position)" and a "second rotation position." Specifically, the operating lever 150 is switchable between the "reference position" shown in FIG. 11A, the "first rotation position" shown in FIG. 11B in which the operating lever 150 is pulled forward from the reference position, and the "second rotation position" shown in FIG. 11C in which the operating lever 150 is rotated 90 degrees from the reference position and pulled forward.

[0057] The operating lever 150 has a lever operating portion 151, a lever extending portion 152, a first lever support portion 153A and a second lever support portion 153B supported by the armrest frame 120 (lever support frame 122), and a lever biasing spring 154. The lever support frame 122 is formed with a first through hole 122A and a second through hole 122B that penetrate the operating lever 150 in the length direction and allow the first lever support portion 153A to pass through. The first through hole 122A and the second through hole 122B correspond to keyholes.

[0058] 11A , the rear surface of the first lever support portion 153A abuts against the lever support frame 122, thereby maintaining the locked state of the first lock pin 160 and the second lock pin 170. More specifically, the operating lever 150 is biased by the lever biasing spring 154, and the rear surface of the first lever support portion 153 is pressed against the lever support frame 122.

[0059] 11B , when the operating lever 150 is in the "first rotation position" shown in FIG. 11B , the first lever support portion 153A passes through the first through-hole 122A as the operating lever 150 is operated, thereby unlocking the first lock pin 160. More specifically, the first lever support portion 153A passes through the first through-hole 122A, and the front surface of the first lever support portion 153A abuts against the edge of the second through-hole 122B. The amount of operation of the operating lever 150 at this time corresponds to the "first amount of operation," and the first lock pin 160 is released from the locked state as the first connecting wire 161 is pulled.

[0060] 11C , when the operating lever 150 is in the "second rotation position," the switching device 140 unlocks both the first lock pin 160 and the second lock pin 170 as the first lever support portion 153A passes through the second through hole 122B in response to operation of the operating lever 150. More specifically, the first lever support portion 153A passes further through the second through hole 122B, and the front surface of the second lever support portion 153B is pressed against the lever support frame 122. The amount of operation of the operating lever 150 at this time corresponds to the "second amount of operation," and the second lock pin 170 is released from its locked state as the second connecting wire 171 is pulled.

[0061] With the above configuration, it is possible to use one operating lever 150 to unlock the first lock pin 160 and the second lock pin 170 depending on the rotational position of the operating lever 150. Therefore, it is possible to prevent the drawer member 130 from unintentionally extending from the armrest 110.

[0062] Even with the vehicle seat S2 described above, it is possible to realize a seat that allows the armrest 110 and the drawer member 130 to be switched smoothly.

[0063] Third Embodiment Next, a vehicle seat S3 according to a third embodiment will be described with reference to Figures 12 to 17C. Descriptions of the vehicle seats S1 and S2 described above will be omitted.

[0064] 12, the vehicle seat S3 is a seat in which a drawer member 230 inside an armrest 210 can be switched between a "storage position" and an "extended position." In the vehicle seat S3, an occupant can switch the armrest 210 and the drawer member 230 by operating an operating lever 250.

[0065] The vehicle seat S3 includes an armrest 210, a drawer member 230, and a switching device 240. As shown in FIGS. 12 to 14B, the armrest 210 includes an armrest frame 220 and is attached to the seat back 202 via the switching device 240. The armrest 210 is switchable between a "normal position" shown in FIGS. 13A and 13B and a "moving position (rotating position)" shown in FIGS. 14A and 14B. When the armrest 210 is in the "normal position," it is unlocked and is freely rotatable relative to the seat back 202. On the other hand, when it is in the "moving position," it is locked.

[0066] The armrest frame 220 includes a shaft support frame 221 , a lever support frame 222 , a wire support frame 223 , and a table support frame 224 .

[0067] As shown in Fig. 12, the drawer member 230 is attached so as to be slidable rearward from the front surface of the armrest 210 (the rear surface when in the moving position). The drawer member 230 is switchable between a "storage position" and an "extended position." As shown in Fig. 13A, the drawer member 230 has a drawer body 231, a plurality of locking grooves 232, and left and right spring holding portions 233. The drawer member 230 is locked when in the "storage position" and the "extended position."

[0068] 13A and 13B , the switching device 240 can lock and unlock the armrest 210 and the drawer member 230 with a single operating lever 250. The switching device 240 includes a rotating shaft 241, the operating lever 250, a first lock pin 260 that locks the armrest 210, and a second lock pin 270 that locks the drawer member 230. The switching device 240 also includes a first connecting wire 261, a first biasing spring 262, a second connecting wire 271, and a second biasing spring 272.

[0069] 13A and 15, the outer surface (outside surface) of the pivot shaft 241 is formed with a lock groove 242 that is arc-shaped about the shaft core 241a and aligned along a circumference that passes above the shaft core 241a. Specifically, the lock groove 242 has a first groove portion 242a that is arc-shaped about the shaft core 241a and passes above the shaft core 241a, and a second groove portion 242b that is continuous with the rear end of the first groove portion 242a and extends forward from the rear end of the first groove portion 242a toward the shaft core 241a. A step portion 242c is also formed at the upper end of the lock groove 242.

[0070] 13B and 15, the first lock pin 260 is an L-shaped locking member that moves along the locking groove 242 while being engaged with the locking groove 242 as the armrest 210 is rotated. Specifically, the first lock pin 260 has a pin extension portion 260a that is long in the front-to-rear direction, and a pin engagement portion 260b that bends and extends from the extension end of the pin extension portion 260a and engages with the locking groove 242. The first lock pin 260 may also be a U-shaped locking member.

[0071] When the armrest 210 is in the "normal position" shown in FIGS. 13A and 13B, the switching device 240 is movable with the first lock pin 260 engaged with the first groove 242a. Therefore, the switching device 240 is not locked to prevent the armrest 210 from moving. On the other hand, when the armrest 210 is in the "movement position" shown in FIGS. 14A and 14B, the switching device 240 is immobilized with the first lock pin 260 engaged with the second groove 242b. Specifically, the first lock pin 260 is biased toward the second groove 242b by the first biasing spring 262. Therefore, the switching device 240 is locked to prevent the armrest 210 from moving. To unlock the armrest 210, the operating lever 250 is pulled to disengage the first lock pin 260 from the second groove 242b, thereby releasing the locked state.

[0072] In the above configuration, as shown in FIG. 15 , a step 242c is formed at the upper end of the lock groove 242. Therefore, when rotating the armrest 210 from the upper position to the "moved position," the first lock pin 260 needs to climb over the step 242c. This prevents the armrest 210 from rotating too quickly from the "normal position" to the "moved position," allowing the occupant to operate the armrest 210 stably. In other words, the armrest 210 can be stopped temporarily in a position facing upward.

[0073] Note that as a fourth modified example of the switching device 240, the configuration shown in FIGS. 16A to 16C may also be used. Specifically, as in the fourth modified example, the first lock pin 260 may be a rod-shaped locking member. In that case, it is preferable that the lock groove 242 (first groove portion 242a, second groove portion 242b, step portion 242c) be formed along the outer circumferential surface of the rotation shaft 241. Even with the above configuration, the switching device 240 can lock the movement of the armrest 210 when the armrest 210 is in the "movement position" shown in FIG. 16C, i.e., when the first lock pin 260 is engaged with the second groove portion 242b. To unlock the armrest 210, the locked state is released by pulling the operating lever 250 to disengage the first lock pin 260 from the second groove portion 242b.

[0074] The second lock pin 270 engages with a lock groove 232 formed on the top surface of the drawer member 230 to lock the sliding movement of the drawer member 230 .

[0075] A first lock pin 260 shown in Fig. 13B is fixed to the extending end of the first connecting wire 261, and a first engaging member 263 shown in Fig. 17A is fixed to the base end of the first connecting wire 261. Similarly, a second lock pin 270 shown in Fig. 13B is fixed to the extending end of the second connecting wire 271, and a second engaging member 273 shown in Fig. 17A is fixed to the base end of the second connecting wire 271.

[0076] 13A, 13B, and 17A to 17C, the operating lever 250 is disposed so as to protrude forward from the armrest 210. The operating lever 250 is attached to the armrest 210 so as to be rotatable between a "reference position," a "first rotation position," and a "second rotation position." Specifically, the operating lever 250 is switchable between the "reference position" shown in FIG. 17A, a "first rotation position" shown in FIG. 17B which is rotated 90 degrees counterclockwise from the reference position, and a "second rotation position" shown in FIG. 17C which is rotated 90 degrees clockwise from the reference position.

[0077] The operating lever 250 has a lever operating portion 251, a lever extending portion 252, a lever support portion 253 supported by the armrest frame 220 (lever support frame 222), and a lever biasing spring 254. When the lever support portion 253 is in the "first pivot position" shown in Fig. 17B, it engages with a first engagement member 263. When the lever support portion 253 is in the "second pivot position" shown in Fig. 17C, it engages with a second engagement member 273.

[0078] 17A , the switching device 240 maintains the locked state of the first lock pin 260 and the second lock pin 270. More specifically, because the lever support portion 253 is not engaged with the engaging members 263, 273, the lock is not released even if the occupant pulls the operating lever 250.

[0079] 17B and the lever support portion 253 is engaged with the first engagement member 263, the switching device 240 releases the locked state of the first lock pin 260 in response to operation of the operating lever 250. More specifically, because the lever support portion 253 is engaged with the first engagement member 263, the occupant can pull the first lock pin 260 by pulling the operating lever 250, thereby releasing the lock.

[0080] 17C and the lever support portion 253 is engaged with the second engagement member 273, the switching device 240 releases the locked state of the second lock pin 270 in response to operation of the operating lever 250. More specifically, because the lever support portion 253 is engaged with the second engagement member 273, the occupant can pull the second lock pin 270 by pulling the operating lever 250, thereby releasing the lock.

[0081] With the above configuration, it is possible to use one operating lever 250 to unlock the first lock pin 260 and the second lock pin 270 according to the rotational position of the operating lever 250. Even with the vehicle seat S3, the switching operation of the armrest 210 and the switching operation of the drawer member 230 can be performed smoothly.

[0082] Fourth Embodiment Next, a vehicle seat S4 according to a fourth embodiment will be described with reference to Figures 18 to 20B. Description of the same content as in the vehicle seats S1 to S3 described above will be omitted.

[0083] 18, the vehicle seat S4 is a seat in which a drawer member 330 inside an armrest 310 can be switched between a "storage position" and an "extended position." In the vehicle seat S4, an occupant can switch the armrest 310 and the drawer member 330 by operating an operating lever 350.

[0084] The vehicle seat S4 includes an armrest 310, a drawer member 330, and a switching device 340. As shown in Figures 18 to 20B, the armrest 310 includes an armrest frame 320 and is attached to the seat back 302 via the switching device 340. The armrest 310 is switchable between a "normal position" shown in Figures 19A and 19B and a "moving position (rotating position)" shown in Figures 20A and 20B. The armrest 310 is locked when in the "normal position" and the "moving position."

[0085] As shown in Figure 18, the drawer member 330 is rotatably attached to the bottom surface of the armrest 310 (or to the top surface when in the moving position). The drawer member 330 is switchable between a "storage position" and an "extended position." As shown in Figures 19A and 19B, the drawer member 330 has a drawer body 331, a lock groove 332, a rotation shaft 333 (hinge), and a handle portion 334. A drawer bias spring 380 is attached to the drawer member 330. The drawer member 330 is locked when in the "storage position" and the "extended position."

[0086] 19B, the lock groove 332 is formed in the rear end (rear end surface) of the drawer member 330. The pivot shaft 333 is attached to the front end of the drawer member 330. The handle 334 is an opening formed in the rear portion of the drawer member 330.

[0087] 19A and 19B , the switching device 340 can unlock the armrest 310 and the drawer member 330 with a single operating lever 350. The switching device 340 includes a rotating shaft 341, the operating lever 350, a first lock pin 360 that locks the armrest 310, and a second lock pin 370 that locks the drawer member 330. The switching device 340 also includes a first connecting wire 361, a first biasing spring 362, a second connecting wire 371, and a second biasing spring 372. Locking grooves 341b, 341c, and 341d are formed on the outer circumferential surface of the rotating shaft 341.

[0088] 19A to 20B, the operating lever 350 is disposed at the front end of the armrest 310. The operating lever 350 has a lever biasing spring 354. When the operating lever 350 is pulled against the biasing force of the lever biasing spring 354, the switching device 340 can switch the first lock pin 360 and the second lock pin 370 from the "locked position" to the "unlocked position."

[0089] 19B and 20B , the first lock pin 360 engages with the lock groove 341b of the rotation shaft 341 to lock the rotation of the armrest 310. The first connecting wire 361 connects the operating lever 350 and the first lock pin 360. The second lock pin 370 engages with the lock groove 332 of the drawer member 330 to lock the rotation of the drawer member 330. The second connecting wire 371 connects the operating lever 350 and the second lock pin 370.

[0090] 20A and 20B, when the second lock pin 370 is released from the lock groove 332, the drawer member 330 rotates from the "storage position" to the "extended position" due to the biasing force of the drawer biasing spring 380. The drawer member 330 is extended rearward from the armrest 310 and can be used as a table.

[0091] In the above configuration, the first biasing spring 362 that biases the first lock pin 360 and the second biasing spring 372 that biases the second lock pin 370 have different biasing forces. Specifically, the second biasing spring 372 has a stronger biasing force than the first biasing spring 362. This makes it possible to unlock the armrest 310 and the drawer member 330 depending on the amount of pulling of the operating lever 350 (the strength of the pulling force). For example, the armrest 310 can be unlocked by gently pulling the operating lever 350, and the drawer member 330 can be unlocked by strongly pulling the operating lever 350.

[0092] Even in the vehicle seat S4, the armrest 310 and the drawer member 330 can be smoothly switched.

[0093] <Method of Manufacturing Vehicle Seat> Next, a method of manufacturing the vehicle seat S1 will be described with reference to Figures 1 to 7B. Note that in the method of manufacturing the vehicle seat S1, a description of manufacturing steps other than those described below will be omitted.

[0094] First, the seat body Sa and the armrest 10 are prepared. Then, the switching device 40 is attached to the seat body Sa so that the armrest 10 can be switched between a "normal position" and a "moved position." Then, the drawer member 30 is attached inside the armrest 10 so that it can be deployed from the armrest 10. At this time, the drawer member 30 is configured so that it can be switched by the switching device 40 between a "stored position" in which it is stored in the armrest 10 and a "deployed position" in which it is deployed from the armrest 10.

[0095] The switching device 40 has a first lock pin 60, a second lock pin 70, and an operating lever 50. The operating lever 50 is connected to the first lock pin 60 and the second lock pin 70. This makes it possible to release the locked state of the first lock member and the locked state of the second lock member by operating the operating lever 50.

[0096] By the above manufacturing method, it is possible to manufacture the vehicle seat S1 in which the armrest 10 and the drawer member 30 can be switched appropriately.

[0097] 1 and 2, in the above embodiment, the armrest 10 is switched between the "normal position" and the "moved position" by rotating with respect to the seat back 2, but this is not particularly limited. For example, the armrest 10 may be switched between the "normal position" and the "moved position" by moving (sliding) in the front-rear direction of the seat.

[0098] In the above embodiment, as shown in FIG. 1 , the operating lever 50 is attached to the front surface (front end) of the armrest 10, but this is not particularly limited. For example, the operating lever 50 may be attached to the top or bottom surface of the armrest 10, or to the outer or inner surface, or to the rear surface. The operating lever 50 may also be located in the rear portion (rear end) of the armrest 10. The operating lever 50 may be shaped like a hook. If it is shaped like a hook, it can be hooked onto the handle of a bag, for example.

[0099] In the above embodiment, as shown in Figures 3A and 3B, the linear first connecting wire 61 (second connecting wire 71) connects the operating lever 50 and the first lock pin 60 (second lock pin 70), but this is not particularly limited. For example, instead of the connecting wire, a connecting cable may be used, or a rod-shaped connecting member or a combination of rod-shaped connecting members may be used. Alternatively, a gear may be used, or a combination of a gear and a cable may be used.

[0100] In the above embodiment, a vehicle seat used in an automobile was described as a specific example, but the present invention is not limited to this and can also be used as a vehicle seat for trains, buses, etc., as well as airplanes, ships, etc.

[0101] Fifth Embodiment Next, a vehicle interior system S5 according to a fifth embodiment will be described with reference to Figures 21 to 25. Note that descriptions that overlap with those of the vehicle seats S1 to S4 described above will be omitted.

[0102] The vehicle interior system S5 realizes a system that allows occupants to sit more comfortably inside the vehicle. Note that the "vehicle longitudinal direction (front-rear direction)" refers to the longitudinal direction when the vehicle is normally running, and the "vehicle interior side in the vehicle width direction (width direction)" refers to the interior side of the vehicle relative to the vehicle door. Also, the "inner surface of the vehicle door (door lining)" refers to the interior surface of the vehicle door (interior surface of the vehicle). Note that the same applies to the vehicle interior system S6.

[0103] The vehicle interior system S5 includes a vehicle seat 401 for an occupant to sit on, and a vehicle door 501 that is disposed on the outer side of the vehicle than the vehicle seat 401 and through which the occupant gets in and out of the vehicle. As shown in Fig. 22 , the vehicle interior system S5 realizes the formation of a support surface 480c on the inner surface of the vehicle door 501 by detachably attaching a cushion body 480 that constitutes a part of the vehicle seat 401 to the inner surface of the vehicle door 501. The support surface may also be referred to as a seating surface or a second seating surface.

[0104] By assembling the cushion body 480 to the surface of the vehicle door 501 on the interior side of the vehicle, the occupant can use the vehicle door 501 (cushion body 480) as a backrest. For example, the occupant can lean against the vehicle door 501 and stretch their legs, allowing the occupant to sit comfortably. In other words, the vehicle interior system S5 can increase the variety of seat arrangements to allow the occupant to spend time comfortably inside the vehicle, and can also improve the seating feeling of the occupant.

[0105] 21 and 22, the vehicle seat 401 is, for example, a rear seat (also called a bench seat) disposed at the rear of the vehicle. The vehicle seat 401 includes a seat body 402 having a seat cushion 410, a seat back 420, and a headrest 430, a reclining device 440, a cushion changing device 450 and a pressure detection sensor 460 attached inside the seat cushion 410, a control device 470, and a cushion body 480 constituting a part of the seat body 402. Below, the vehicle door 501 will be described first, followed by a detailed description of the vehicle seat 401 (cushion body 480).

[0106] 21 and 22 , a vehicle door 501 includes a door panel 502 serving as a base of the vehicle door 501, and a door lining 503 attached to the side surface of the door panel 502 on the interior side of the vehicle. The door lining 503 is an interior part of the vehicle that is provided inside the vehicle and decorates the interior side of the vehicle door 501. The door lining 503 includes an armrest 510 that supports the arms of a seated occupant, an operating handle 520 that is located above a front portion of the armrest 510 and is used to open and close the vehicle door 501, and a pocket 530 that is located below the armrest 510. The door lining 503 further includes a switch device 540 that is provided on the upper surface of the armrest 510 and is used to operate various movable devices, a detection sensor 550 that is attached inside the armrest 510, and a power supply unit 560 (a supply port for a power source P) that is attached inside the door lining 503.

[0107] The armrest 510 is provided to protrude from the main body of the door lining 503 toward the interior of the vehicle and extends longitudinally in the vehicle front-rear direction. The armrest 510 has an armrest main body 511 that is elongated in the vehicle front-rear direction and a concave handle portion 512 formed on the upper surface of the armrest main body 511 and gripped by an occupant. The handle portion 512 also functions as a first engaged recess (engaged portion) that detachably engages with the cushion body 480 (first engaging protrusion 482). Note that a second engaged recess 513 that detachably engages with the cushion body 480 (second engaging protrusion 483) is formed on the interior surface (inner surface) of the door lining 503, slightly above the handle portion 512.

[0108] The switch device 540 is a device for operating a movable device (e.g., a power window) and is attached to the upper surface of the front portion of the armrest 510. The reclining device 440 or the cushion changing device 450 may also be operated by the switch device 540. The detection sensor 550 is a detection unit that detects whether the cushion body 480 is attached to the inner surface of the vehicle door 501 and is arranged on the inner surface of the armrest 510. The detection sensor 550 is, for example, a proximity sensor or a pressure sensor, and when it detects the cushion body 480, it transmits a detection signal (detection data, detection result) to the control device 470.

[0109] The power supply unit 560 is an electricity supply port and is electrically connected to a power source P provided in the vehicle. When the cushion body 480 is attached to the inner surface of the door lining 503, the power supply unit 560 is disposed in a position facing the cushion body 480 (power receiving unit 486) and supplies electricity to the cushion body 480. The power supply unit 560 is disposed, for example, at the bottom of the second engaged recess 513, but may also be disposed at the bottom or inner side of the handle portion 512. Alternatively, the power supply unit 560 may be disposed in any position facing the cushion body 480.

[0110] 21 to 23, the vehicle seat 401 is a rear seat, and more specifically, includes a first vehicle seat 401A (first seat portion), a second vehicle seat 401B (second seat portion), and a center seat 401C (center seat portion) disposed between the first vehicle seat 401A and the second vehicle seat 401B. The first vehicle seat 401A, the second vehicle seat 401B, and the center seat 401C each include a seat cushion 410, a seat back 420, and a headrest 430. The first vehicle seat 401A will be described below as a representative example.

[0111] As shown in Figure 23, the seat cushion 410 is a seating portion that supports a seated person (occupant) from below and includes a cushion frame 410a that serves as a framework, a pad material 410b placed on the cushion frame 410a, and a cover material 410c that covers the cushion frame 410a and the pad material 410b. The seat cushion 410 has a cushion center portion 411 and left and right cushion side portions 412 that are disposed on both sides of the cushion center portion 411 in the width direction and protrude upward beyond the cushion center portion 411. A pressure detection sensor 460 is attached inside the cushion center portion 411. A cushion changing device 450 is attached inside the cushion side portions 412.

[0112] The seat back 420 is a backrest portion that supports the seated occupant from behind, and includes a back frame 420a that serves as a skeleton, a padding material 420b, and a covering material 420c. The seat back 420 also has a back center portion 421 and left and right back side portions 422. A cushion changing device 450 may be attached inside the back side portion 422. The headrest 430 is a head portion that supports the seated occupant's head from behind, and includes a pillar 430a that serves as a skeleton, a padding material 430b, and a covering material 430c.

[0113] As shown in Figures 21 and 23, the reclining device 440 includes a reclining body 441 that is driven when rotating the seat back 420, a back rotation shaft 442, a spiral spring 443 that urges the seat back 420 to rotate forward, and an operating lever (not shown) that is operated to release the locked state of the seat back 420.

[0114] The reclining body 441 has a known locking mechanism, and can switch the state of the seat back 420 between a "locked state" in which the seat back is fixed to the seat cushion 410 and an "unlocked state" in which the seat back is rotatable relative to the seat cushion 410. The back rotation shaft 442 is axially supported on the seat cushion 410 side and the seat back 420 side in the seat width direction. One end of the spiral spring 443 is anchored on the seat cushion 410 side, and the other end is anchored on the seat back 420 side.

[0115] 21 and 23, the cushion changing device 450 is attached to the inside of the cushion side portion 412 of the seat cushion 410, and is a device for changing the shape of the cushion side portion 412. The cushion changing device 450 includes a plurality of bags 451 (air cells) arranged inside the padding material of the cushion side portion 412, an air pump 452 that supplies compressed air to the bags 451, and an air pipe 453 that connects the bags 451 and the air pump 452.

[0116] A plurality of bags 451 are held inside the cushion side portion 412. The bags 451 expand the seating surface of the cushion side portion 412 upward when compressed air is supplied (air supply). Furthermore, the bags 451 contract the seating surface of the cushion side portion 412 downward when compressed air is discharged (exhaust). The air pump 452 can supply compressed air to the bags 451 or discharge compressed air from the bags 451 by receiving a predetermined control signal from the control device 470. With the above configuration, the cushion changing device 450 can change the shape of the cushion side portion 412. The cushion changing device 450 may change the shape of the cushion side portion 412 by means other than bags (air cells).

[0117] 21 and 23 , the pressure detection sensor 460 is provided inside the seat cushion 410 (cushion center portion 411), and is a sensor that detects a predetermined pressure being applied to the seating surface of the seat cushion 410. The pressure detection sensor 460 detects, for example, that an occupant is seated on the seat cushion 410, and transmits a detection signal to the control device 470.

[0118] 21 , the control device 470 is a device that performs overall electrical control of the vehicle, and is, for example, an engine control unit (ECU). The control device 470 is connected to the reclining device 440, the cushion change device 450, the pressure detection sensor 460, the cushion body 480, the vehicle door 501 (opening / closing lock device), the switch device 540, the detection sensor 550, the power source P, the detection sensor 417 (described later), the pressure detection sensor 484, the seat heater 485, and the like, via an in-vehicle network. Specifically, the control device 470 is a computer that includes a CPU (processor) as a data calculation / control processing device, ROM and RAM as storage devices, an HDD, and a communication interface that transmits and receives information data via the in-vehicle network.

[0119] In addition to a main program that performs the functions required of a computer, a vehicle interior design program according to this embodiment is stored in the storage device of the control device 470. The functions of the vehicle interior design system S5 are realized by the execution of this program by a CPU (processor).

[0120] <<Cushion Body>> As shown in FIGS. 21 to 24 , the cushion body 480 constitutes a part of the seat body 402 (seat cushion 410) and is removably attached to the seat body 402. More specifically, the cushion body 480 is a member that constitutes a part of the seat cushion 410 of the center seat 401C. As shown in FIG. 21 , the cushion body 480 is switchable between a "seat-mounted state" in which it is integrally attached to the seat body 402 as a part of the seat body 402, and a "door-mounted state" in which it is attached to the inner surface of the vehicle door 501 as shown in FIG. 22 . When attached to the interior surface of the vehicle door 501, the cushion body 480 is disposed so as to protrude from the vehicle door 501 toward the interior of the vehicle, and forms a support surface 480c on the interior surface of the vehicle door 501.

[0121] The cushion body 480 has a generally F-shaped vertical cross section and is attached to a mounting portion 413 of the seat cushion 410 in the "seat assembled state" shown in FIG. 23 . The mounting portion 413 is a mounting recess corresponding to the shape of the cushion body 480 and is formed on the upper surface of the seat cushion 410. More specifically, as shown in FIG. 22 , the mounting portion 413 has a first engaged recess 414 and a second engaged recess 415. A holding member 416 for holding the cushion body 480, a detection sensor 417 for detecting the cushion body 480, and a power supply unit 475 are attached to the surface of the mounting portion 413. The holding member 416 is not particularly limited as long as it is a member that holds the cushion body 480. The holding member 416 may be, for example, a hook-and-loop fastener, a holding striker, a locking member, or the like. The detection sensor 417 is, for example, a proximity sensor or a pressure sensor, and upon detecting the cushion body 480, transmits a detection signal (detection data, detection result) to the control device 470. The power supply portion 475 is a supply port for a power source P and can supply power to the cushion body 480 .

[0122] The cushion body 480 is assembled to the armrest 510 of the vehicle door 501 in the "door assembled state" shown in Fig. 22. A handle portion 512 serving as a first engaged recess is formed on the upper surface of the armrest 510. A second engaged recess 513, a detection sensor 550, and a power supply unit 560 are provided on the inner surface of the vehicle door 501. When the detection sensor 550 detects the cushion body 480, it transmits a detection signal to the control device 470. The power supply unit 560 can supply power to the cushion body 480.

[0123] As shown in Figure 24, the cushion body 480 is mainly composed of a padding material 480a and a cover material 480b that covers the padding material 480a. The cushion body 480 includes a substantially L-shaped main body 481, a first engaging protrusion 482 that extends downward from one end of the main body 481 in the width direction, and a second engaging protrusion 483 that extends laterally from one end of the main body in the width direction. A pressure detection sensor 484, a seat heater 485, and a power receiving unit 486 are mounted inside the cushion body 480. The specific shape of the cushion body 480 is not particularly limited.

[0124] As shown in Figures 23 and 24 , the first engaging protrusion 482 engages with the first engaged recess 414 of the vehicle seat 401 and also engages with the handle portion 512 (first engaged recess) of the vehicle door 501. The second engaging protrusion 483 engages with the second engaged recess 415 of the vehicle seat 401 and also engages with the second engaged recess 513 of the vehicle door 501. As shown in Figure 23 , the cushion body 480 is integrally attached to the upper surface of the seat cushion 410 by the first engaging protrusion 482 engaging with the first engaged recess 414 and the second engaging protrusion 483 engaging with the second engaged recess 415. Furthermore, as shown in Figure 24 , the cushion body 480 is attached to the inner surface of the vehicle door 501 by the first engaging protrusion 482 engaging with the handle portion 512 and the second engaging protrusion 483 engaging with the second engaged recess 513.

[0125] 24 , the pressure detection sensor 484 is a sensor that detects that a predetermined pressure is being applied to the support surface 480c of the cushion body 480. The pressure detection sensor 484 detects, for example, that an occupant is leaning against the cushion body 480, and transmits a detection signal to the control device 470.

[0126] The seat heater 485 is disposed between the pad material 480a and the cover material 480b, and can warm an occupant who touches the cushion body 480. The power receiving unit 486 is disposed between the pad material 480a and the cover material 480b, and when attached to the vehicle seat 401 or the vehicle door 501, receives electricity through the vehicle seat 401 (power supply unit 475) or the vehicle door 501 (power supply unit 560). A harness is disposed inside the cushion body 480 to electrically connect the seat heater 485 and the power receiving unit 486.

[0127] 22, the cushion body 480 is attached to the inner surface of the vehicle door 501 so as to cover the handle portion 512 of the armrest 510. This prevents the occupant from directly hitting the armrest 510 when leaning against the vehicle door 501. This improves the seating comfort of the occupant.

[0128] 22, the seat cushion 410 has a holding member 416 that holds the cushion body 480. Therefore, the cushion body 480 can be stably attached to the outer surface of the seat cushion 410 by utilizing the holding member 416.

[0129] In the above configuration, as shown in FIG. 24 , when the detection sensor 550 detects that the cushion body 480 is attached to the vehicle door 501, the control device 470 controls the vehicle door 501 (opening / closing lock device) to be unable to open or close. This prevents the vehicle door 501 from being unintentionally opened or closed when an occupant is seated leaning against the vehicle door 501 (cushion body 480). In this case, the control device 470 may control the vehicle door 501 to be unable to open or close when it receives the detection results from the detection sensor 550, the pressure detection sensor 460, and the pressure detection sensor 484. This allows the control device 470 to control the vehicle door 501 to be unable to open or close when the occupant is leaning against the vehicle door 501 (cushion body 480) and seated on the seat cushion 410. That is, the pressure detection sensor 460 inside the seat cushion 410 can detect that the occupant is sitting sideways on the seat cushion 410. In addition, the control device 470 may appropriately control the opening and closing locking of the vehicle door 501 using the detection sensor 417 of the vehicle seat 401, the pressure detection sensor 460, the pressure detection sensor 484 of the cushion body 480, and the detection sensor 550 of the vehicle door 501.

[0130] In the above configuration, as shown in Figures 23 and 24, when it is detected that the cushion body 480 is attached to the vehicle door 501, the control device 470 controls the operation of the cushion change device 450 to lower the protruding portion of the cushion side portion 412. At this time, the control device 470 may control the operation of the reclining device 440 to tilt the seat back 420 slightly forward or slightly backward. This can further improve the seating comfort of the occupant. For example, the seat cushion 410 can be changed to a flat seating surface.

[0131] <Vehicle Interior Decoration Method> Next, an example of the processing of the vehicle interior decoration program (vehicle interior decoration method) executed by the vehicle interior decoration system S5 (control device 470) will be described with reference to FIG. 25 . The program is executed by a CPU (processor) of the control device 470 having a storage unit. The program is executed when triggered, for example, by an occupant sitting in the vehicle seat 401. Alternatively, the program is executed when triggered by a user operating an operating device (not shown).

[0132] 25, the process starts with step 1 (S1) in which, when the detection sensor 417 of the vehicle seat 401 is turned ON, the control device 470 detects that the cushion body 480 is attached to the vehicle seat 401. At this time, the cushion body 480 is attached integrally to the vehicle seat 401 as shown in FIG.

[0133] Then, in step 2, when the detection sensor 417 of the vehicle seat 401 is turned OFF, the control device 470 detects that the cushion body 480 has been removed from the vehicle seat 401. This makes it clear that the occupant has removed the cushion body 480.

[0134] Then, in step 3, when the detection sensor 550 of the vehicle door 501 is turned ON, the control device 470 detects that the cushion body 480 has been attached to the vehicle door 501. At this time, the cushion body 480 is attached so as to cover the armrest 510 as shown in FIG.

[0135] Then, in step 4, when the pressure detection sensor 484 of the cushion body 480 is turned ON, the control device 470 detects that the occupant is leaning against the cushion body 480. At this time, the control device 470 preferably receives the detection signal (ON) of the pressure detection sensor 484 and the detection signal (ON) of the pressure detection sensor 460 of the vehicle seat 401, and detects the seating state of the occupant (leaning to the side). By using multiple pressure detection sensors in this way, the control device 470 can detect the state of the occupant with higher accuracy.

[0136] Then, in step 5, the control device 470 controls the locking of the vehicle door 501. This prevents the vehicle door 501 from opening or closing when an occupant is leaning against the vehicle door 501 (cushion body 480).

[0137] Then, in step 6, the control device 470 determines whether the pressure detection sensor 484 has turned OFF. If the pressure detection sensor 484 has turned OFF (step 6: Yes), the process proceeds to step 7, where the control device 470 unlocks the vehicle door. On the other hand, if the pressure detection sensor 484 has not turned OFF (step 6: No), the process returns to step 5. After passing through steps 1 to 6, the process of FIG. 25 ends.

[0138] Sixth Embodiment Next, a vehicle interior system S6 according to a sixth embodiment will be described with reference to Figures 26 to 28. Note that a description of the same content as in the vehicle interior system S5 will be omitted.

[0139] 26 , the vehicle interior system S6 includes a vehicle seat 401 and a vehicle door 501. The vehicle interior system S6 forms a support surface on the vehicle interior surface of the vehicle door 501 by attaching a cushion body 480 that constitutes a part of the vehicle seat 401 and a second cushion body (headrest 430B) to the vehicle interior surface of the vehicle door 501.

[0140] 26 , the vehicle seat 401 includes a seat body 402 having a seat cushion 410, a seat back 420, and a headrest 430, a control device 470, a cushion body 480 constituting part of the seat body 402, and a second cushion body (headrest 430B). An attachment portion 413 is formed on the upper surface of the seat cushion 410. The attachment portion 413 has a first engaged recess 414 and a second engaged recess 415. A holding member 416, a detection sensor 417, and a power supply portion 475 are attached to the surface of the attachment portion 413.

[0141] As shown in FIG. 26 , the cushion body 480 constitutes a part of the seat body 402 (seat cushion 410) and is removably attached to the seat body 402. The cushion body 480 is switchable between a "seat-attached state" and a "door-attached state." In the "seat-attached state," the cushion body 480 is attached to an attachment portion 413 of the seat cushion 410. A holding member 416, a detection sensor 417, and a power supply unit 475 are attached to the surface of the attachment portion 413. In the "door-attached state" shown in FIG. 26 , the cushion body 480 is attached to the interior surface of the vehicle door 501.

[0142] The cushion body 480 includes a three-dimensional main body 481, an engagement portion 482 extending laterally from the outer surface of the main body 481, a pressure detection sensor 484, and a power receiving portion 486. The headrest 430B, which serves as the second cushion body, includes a pillar 430a (headrest pillar) which serves as a core material.

[0143] As shown in Figures 26 to 28, the vehicle door 501 includes a door lining 503. The door lining 503 includes an armrest 510, a first engaged portion 512, a second engaged portion 513, a detection sensor 550, and a power supply portion 560. The first engaged portion 512 is an engaging striker. The second engaged portion 513 is an engaging hole.

[0144] 27 and 28, the cushion body 480 is attached to the upper surface of the armrest 510. More specifically, the cushion body 480 is attached to the door lining 503 by clamping the first engaged portion 512 with the engaging portion 482 of the cushion body 480. At this time, as shown in FIG. 28, the cushion body 480 is positioned so as to protrude further toward the interior of the vehicle than the armrest 510.

[0145] 27 and 28, a headrest 430B, which serves as a second cushion body, is attached to the upper surface of the door lining 503. More specifically, the pillar 430a of the headrest 430B is inserted into the second engaged portion 513, thereby attaching the headrest 430B to the door lining 503. At this time, the headrest 430B is positioned to support the head of the occupant when the occupant is sitting sideways.

[0146] Even in the above embodiment, it is possible to realize a vehicle interior system that allows passengers to sit more comfortably inside the vehicle.

[0147] <Method of Manufacturing Vehicle Interior System> Next, a method of manufacturing the vehicle interior system S5 will be described with reference to Figures 21 to 24. Note that a description of manufacturing steps other than those described below will be omitted.

[0148] First, the vehicle door 501 is prepared, and then the vehicle seat 401 is placed on the vehicle interior side of the vehicle door 501. When placing the vehicle seat 401, the cushion body 480 is attached to the seat body 402 of the vehicle seat 401 so as to be removably mounted. The cushion body 480 may be attached integrally to the outer surface of the seat cushion 410 so as to become part of the vehicle seat 401. When preparing the vehicle door 501, the vehicle door 501 is placed so that the first engaged recess (the handle portion 512 of the armrest 510) and the second engaged recess 513 face the vehicle interior side of the vehicle door 501. Then, when an occupant wants to sit leaning against the vehicle door 501, the cushion body 480 is removed from the vehicle seat 401 and assembled to the vehicle door 501. Specifically, the first engaging protrusion 482 is engaged with the handle portion 512 of the vehicle door 501, and the second engaging protrusion 483 is engaged with the second engaged recess 513. In this way, the support surface 480c of the cushion body 480 can be formed on the vehicle interior surface of the vehicle door 501.

[0149] The above manufacturing method makes it possible to manufacture a vehicle interior system that allows occupants to sit more comfortably inside the vehicle.

[0150] 21 and 22 , in the above embodiment, the cushion body 480 constitutes a part of the seat cushion 410 and is attached to the outer surface of the seat cushion 410, but this is not particularly limited. For example, the cushion body 480 may be detachably attached to the front surface of the seat back 420, or may be attached to the rear surface or side surface of the seat back 420.

[0151] In the above embodiment, as shown in Fig. 22 , the cushion body 480 is attached to the outer surface of the armrest 510 of the vehicle door 501, but this is not particularly limited. The cushion body 480 may be attached to the vehicle interior surface of the vehicle door 501, and the attachment position of the cushion body 480 may be changed as appropriate. Preferably, the cushion body 480 is attached to a position on the vehicle interior surface of the vehicle door 501 that corresponds to the vehicle seat 401.

[0152] In the above embodiment, a vehicle interior system used in an automobile has been described as a specific example, but the present invention is not particularly limited to this and can be used for vehicle interior systems for trains, buses, etc. Alternatively, the present invention can be used for interior systems for vehicles such as airplanes and ships.

[0153] <Notes on Vehicle Seats of Fifth and Sixth Embodiments> The above-described vehicle interior system includes a vehicle door and a vehicle seat, wherein the vehicle seat includes a cushion body that constitutes a part of the vehicle seat and is removably attached to a seat body of the vehicle seat, the cushion body having an engaging portion that engages with an engaging portion provided on an interior surface of the vehicle door, and the cushion body is disposed so as to protrude from the vehicle door toward the interior of the vehicle when attached to the interior surface of the vehicle door, thereby forming a support surface on the interior surface of the vehicle door. This configuration achieves a vehicle interior system that allows occupants to sit more comfortably in the vehicle. More specifically, in the vehicle interior system, the cushion body is disposed so as to protrude from the vehicle door toward the interior of the vehicle when attached to the interior surface of the vehicle door, thereby forming a support surface on the interior surface of the vehicle door. This allows the occupant to sit while being supported by the support surface. For example, even if an occupant leans against the vehicle door, the occupant is supported by the support surface of the cushion, ensuring a comfortable seating feeling. Furthermore, in the above-described vehicle interior system, the cushion constitutes a part of the vehicle seat and is removably attached to the seat body. Therefore, the occupant can be seated comfortably in the vehicle without increasing the number of components as much as possible.

[0154] In this case, the vehicle door may have a first engaged portion as the engaged portion and a second engaged portion provided on an inner surface of the vehicle door, the cushion body may have a first engaging portion as the engaging portion and a second engaging portion that engages with the second engaged portion, and the cushion body may be attached to the inner surface of the vehicle door by engaging the first engaging portion with the first engaged portion and the second engaging portion with the second engaged portion. With the above configuration, the cushion body removed from the seat main body can be suitably assembled to the vehicle door.

[0155] In this case, the vehicle door may include a door armrest provided on an inner surface of the vehicle door for supporting an occupant's arm, the door armrest having a handle portion to be gripped by the occupant, and the handle portion may engage with the engaging portion as the engaged portion. With the above configuration, the cushion body can be suitably assembled to the vehicle door using the handle portion of the door armrest, which is an existing part.

[0156] In this case, the engaging portion may have a convex shape, the handle portion may be the engaged portion having a concave shape and may engage with the engaging portion, and the cushion body may be attached to the inner surface of the vehicle door so as to cover the handle portion. With the above configuration, it is possible to prevent the occupant from directly hitting the armrest when sitting leaning against the vehicle door, thereby improving the seating comfort of the occupant.

[0157] In this case, the seat main body preferably has a seat cushion, the outer surface of the seat cushion being formed with a concave-shaped engaged portion that engages with the engaging portion of the cushion body, the cushion body being attached integrally to the outer surface of the seat cushion, and the seat cushion having a holding member that holds the cushion body in a state where the cushion body is attached to the outer surface of the seat cushion. With the above configuration, the cushion body can be attached compactly to the outer surface of the seat cushion. Furthermore, the holding member can be used to suitably assemble the cushion body to the seat cushion (concave-shaped engaged portion).

[0158] In this case, the vehicle door may include a detection unit that is provided on the vehicle door or the cushion body and that detects that the cushion body is attached to the vehicle door, and a control unit that is provided on the vehicle and that controls the opening and closing operation of the vehicle door based on the detection result by the detection unit, and the control unit may control the vehicle door to be unable to open or close when the detection unit detects that the cushion body is attached to the vehicle door. With the above configuration, the vehicle door can be controlled to be unable to open or close when a cushion body is attached to the vehicle door. Therefore, it is possible to prevent the vehicle door from being unintentionally opened or closed when an occupant is seated leaning against the vehicle door (cushion body).

[0159] In this case, the vehicle seat may further include a first pressure detection unit provided on a seat cushion of the vehicle seat and detecting a predetermined pressure being applied to a seating surface of the seat cushion, and a second pressure detection unit provided on the cushion body and detecting a predetermined pressure being applied to the support surface of the cushion body, and the control device may control the vehicle door to be unable to open or close based on the detection results of the detection units, the detection results of the first pressure detection unit, and the detection results of the second pressure detection unit. With the above configuration, for example, when the cushion body is detached from the seat cushion and attached to the vehicle door, and an occupant is leaning against the vehicle door (cushion body), the opening and closing of the vehicle door can be controlled (the vehicle door can be rendered unable to open or close).

[0160] In this case, the cushion preferably includes a padding material, a skin material covering the padding material, and a seat heater disposed between the padding material and the skin material. With the above configuration, the seat heater can effectively warm the occupant when the occupant is supported by the cushion.

[0161] In this case, the seat main body has a seat cushion, the seat cushion having a cushion center portion and cushion side portions disposed on both sides of the cushion center portion in a width direction and protruding above the cushion center portion, and the vehicle interior system includes a cushion changing device that changes the shape of the cushion side portions, a detection unit that detects that the cushion body is attached to the vehicle door, and a control device that controls the operation of the cushion changing device based on the detection result by the detection unit, and when the detection unit detects that the cushion body is attached to the vehicle door, the control device controls the operation of the cushion changing device to lower the protruding portions of the cushion side portions. With the above configuration, when an occupant sits leaning against the vehicle door (cushion body), the shape of the cushion side portions can be changed (by lowering the cushion side portions), thereby further improving the seating comfort of the occupant.

[0162] In this case, the cushion body may include a power receiving portion that receives electricity through the vehicle seat or the vehicle door when the cushion body is attached to the vehicle seat or the vehicle door. With the above configuration, power can be suitably supplied to the cushion body when the cushion body is attached to the vehicle seat or the vehicle door.

[0163] Seventh Embodiment Next, a vehicle seat S7 according to a seventh embodiment will be described with reference to Figures 29 to 34. Note that descriptions that overlap with the vehicle seats S1 to S4 described above will be omitted.

[0164] The vehicle seat S7 is a seat that can effectively utilize the space below the seat cushion. Also, the vehicle seat S7 is a seat that can store a cover storage member in the space below the seat cushion. The same applies to the vehicle seats S8 to S10.

[0165] As shown in Fig. 29, the vehicle seat S7 is placed on the floor F of the vehicle and is used as a rear seat corresponding to the rear seat of a vehicle. However, the vehicle seat S7 is not limited to this, and may be used as a front seat of the vehicle, or as a middle seat in the second row or a rear seat in the third row in a vehicle having three rows of seats in the front-to-rear direction.

[0166] As shown in Fig. 29, the vehicle seat S7 includes a seat back 601 that supports the back of the occupant and a seat cushion 602 that supports the buttocks of the occupant. The seat back 601 is a backrest portion that supports the occupant from behind, and is provided with a seat frame (back frame 601a) that serves as a skeleton inside. The seat cushion 602 is a seating portion that supports the occupant from below, and is provided with a seat frame (cushion frame 602a) that serves as a skeleton inside.

[0167] As shown in Fig. 29 , the vehicle seat S7 includes a seat body having a seat back 601 and a seat cushion 602, a switching member 603 that switches the seat body between an in-use state and a folded state (described later), a storage section 604 that is disposed below the seat cushion 602 and is capable of storing items, a rotating member 605 that is rotatably attached to the seat cushion 602, and a fixing portion 606 that fixes the storage section 604 in a normal position. Fig. 30 is a front view of the left side portion of the vehicle seat S7, illustrating the positional relationships among the seat cushion 602, the switching member 603, the storage section 604, and the rotating member 605. Note that part of the switching member 603 is omitted in Fig. 30 . The storage section 604 and the rotating member 605 are provided below the seat cushion 602 and more inward in the seat width direction than the switching member 603. The rotating member 605 connects the seat cushion 602 and the storage portion 604 via the switching member 603 and moves the storage portion 604 relative to the seat cushion 602 .

[0168] As shown in Figures 31 and 32, the vehicle seat S7 can be switched between an in-use state and a folded state by a switching member 603. The in-use state is a state in which an occupant can be seated and the seat back 601 is in an upright position, as shown in Figure 31. The folded state is a so-called dive-down state, as shown in Figure 32, in which the seat back 601 is folded from the in-use state so as to overlap the seat cushion 602, and the seat back 601 and the seat cushion 602 are stored in the floor F of the vehicle.

[0169] <<Switching Member>> As shown in FIG. 29 , the switching member 603 has a first arm portion 610 rotatably attached to the front portion of the cushion frame 602 a, a first support portion 611 that rotatably supports the first arm portion 610 with respect to the floor F, a second arm portion 612 that is rotatably attached to the first arm portion 610, a third arm portion 613 that is rotatably attached to the rear end of the second arm portion 612, a fourth arm portion 614 that is rotatably attached to the lower end of the third arm portion 613, and a second support portion 615 that rotatably supports the fourth arm portion 614 with respect to the floor F.

[0170] The switching member 603 is composed of multiple arms, each of which is rotatably connected to one another. Specifically, as shown in FIGS. 30 and 31 , the switching member 603 has a first shaft 603a, a second shaft 603b, a third shaft 603c, a fourth shaft 603d, and a fifth shaft 603e. The first shaft 603a rotatably connects the lower end of the first arm portion 610 to the first support portion 611. The second shaft 603b rotatably connects the upper end of the first arm portion 610 to the front end of the second arm portion 612. The third shaft 603c rotatably connects the rear end of the second arm portion 612 to the upper end of the third arm portion 613. The fourth shaft 603d rotatably connects the lower end of the third arm portion 613 to the rear end of the fourth arm portion 614. The fifth shaft 603e rotatably connects the front end of the fourth arm portion 614 to the second support portion 615. Each rotation shaft of the switching member 603 may be provided with a biasing mechanism (such as a torsion spring) that assists in switching the seat body between the use state and the folded state.

[0171] The first arm portion 610 is a long member extending toward the floor F and is rotatably attached to a front portion of a cushion frame 602a that forms the skeleton of the seat cushion 602. The upper end of the first arm portion 610 is rotatably supported by the cushion frame 602a via a second shaft 603b. The lower end of the first arm portion 610 is rotatably supported by a first support portion 611 via a first shaft 603a.

[0172] The first support portion 611 is disposed on the floor F and supports the first arm portion 610 so that the first arm portion 610 is rotatable with respect to the floor F. In other words, the first arm portion 610 is rotated about the first axis 603 a by the first support portion 611 fixed to the floor F.

[0173] The second arm portion 612 is a long member extending in the front-rear direction and is rotatably attached to the upper end of the first arm portion 610. The front end of the second arm portion 612, together with the upper end of the first arm portion 610, is rotatably attached to the front portion of the cushion frame 602a via a second shaft 603b. The rear end of the second arm portion 612 is rotatably attached to the lower portion of the back frame 601a via a third shaft 603c.

[0174] The third arm portion 613 is a long member extending toward the floor F, and is rotatably attached to a lower portion of a back frame 601a that forms the skeleton of the seat back 601. The upper end of the third arm portion 613 is rotatably attached to the lower portion of the back frame 601a via a third shaft 603c together with the rear end of the second arm portion 612. The lower end of the third arm portion 613 is rotatably attached to the rear end of the fourth arm portion 614 via a fourth shaft 603d.

[0175] The fourth arm portion 614 is a generally T-shaped member that is long in the front-to-rear direction, and is rotatably attached to the lower end of the third arm portion 613 via a fourth shaft 603d. The front end of the fourth arm portion 614 is rotatably attached to the second support portion 615 via a fifth shaft 603e. An engaging portion 614a that engages with a striker St fixed to the floor F is provided in the central portion of the fourth arm portion 614 in the front-to-rear direction.

[0176] The engaging portion 614a is a latch device that detachably engages with, for example, the striker St, and when the seat body is in a normal state, it engages with the striker St and is supported by the floor F. When the engaging portion 614a is engaged with the striker St, the fourth arm portion 614 is locked to the floor F. When the engagement between the engaging portion 614a and the striker St is released, the lock is released and the fourth arm portion 614 becomes rotatable about the fifth shaft 603e relative to the floor F.

[0177] The second support portion 615 is disposed on the floor F and supports the fourth arm portion 614 rotatably with respect to the floor F. In other words, the fourth arm portion 614 is rotated around the fifth axis 603e by the second support portion 615 fixed to the floor F.

[0178] When switching the state of the vehicle seat S7 from the normal state to the folded state, the occupant reclines the seat back 601 forward from the normal state shown in FIG. 31 . As shown in FIG. 32 , the seat back 601 rotates together with the third arm portion 613 about the third shaft 603c. When the third arm portion 613 rotates forward, the second arm portion 612 is pushed forward by the third arm portion 613, and the first arm portion 610 rotates forward about the first shaft 603a. Then, the seat cushion 602 moves downward toward the front, and the underside of the seat cushion 602 abuts against the floor F. The seat back 601 is also folded so as to overlap the seat cushion 602 in the up-down direction and is supported by the seat cushion 602.

[0179] In this way, the switching member 603 can switch the seat body between the in-use state and the folded state. The seat body of the vehicle seat S7 may be configured to be switchable to a hip-up state in which the rear end of the seat cushion 602 is positioned higher than the front end thereof in the normal state. To switch the state of the vehicle seat S7 from the normal state shown in FIG. 31 to the hip-up state, the occupant operates an operating lever (not shown) to disengage the engagement portion 614a from the striker St. The occupant then lifts the rear end of the seat cushion 602 together with the seat back 601 to move the seat body forward. When the fourth arm portion 614 abuts against the rear surface 615a of the second support portion 615 and the front end of the seat cushion 602 abuts against the floor F, the seat body is maintained in the hip-up state.

[0180] 29 and 30 , the storage section 604 is a container disposed below the seat cushion 602 and having a space capable of storing items. Specifically, the storage section 604 has a rectangular storage main body 604a, a cover 604b for covering the seat main body and the floor F, a take-up section 604c for taking up the cover 604b, and a fastener 604d for opening and closing an opening 604a1 of the storage main body 604a. Note that, in this embodiment, the storage section 604 stores the cover 604b that covers the seat back 601, the seat cushion 602, or the floor F of the vehicle, but the items to be stored are not limited to these.

[0181] The storage main body 604a is a box having a space therein for storing items. It may also be a tray capable of storing items. An opening 604a1 for storing items is formed at the front end of the storage main body 604a. A fastener 604d is provided in the opening 604a1. A cover 604b and a winding portion 604c are stored inside the storage main body 604a. A second link 621, which will be described later, is rotatably connected to the rear end of the storage main body 604a. Furthermore, as shown in FIG. 31 , in the normal position, a locking portion 606b of a fixing portion 606, which will be described later, is locked to the top surface of the storage main body 604a.

[0182] The cover 604b is, for example, a waterproof cover that is long in the front-to-rear direction, and is wound up around the winding part 604c when stored. The cover 604b is pulled out from the opening 604a1 and arranged to cover the seat body or the floor F. A handle for pulling out the cover 604b may be provided at the front end of the cover 604b.

[0183] The winding portion 604c is a long rod-shaped member extending in the sheet width direction and is stored inside the storage main body 604a. When storing the cover 604b, the winding portion 604c is rotated by an operating member (not shown), and the pulled-out cover 604b is wound up by the winding portion 604c and stored inside the storage main body 604a.

[0184] The fastener 604d is, for example, a linear fastener that is elongated in the sheet width direction and is attached to the storage main body 604a. When the cover 604b is stored, the opening 604a1 is closed by the fastener 604d. When the cover 604b is used, the opening 604a1 is opened by the fastener 604d, allowing the cover 604b to be pulled out from the storage main body 604a. Note that the fastener 604d is not limited to a linear fastener and may be a hook-and-loop fastener. Furthermore, the opening 604a1 may be closed with a fastener such as a button or a hook, and the fastener 604d or the fastener may not be provided.

[0185] The storage portion 604 moves between a normal position ( FIG. 31 ) where it is disposed below the front portion of the seat cushion 602 and a stored position ( FIG. 32 ) where it is stored below the seat cushion 602, which is a position rearward of the normal position, by rotating the rotating member 605 relative to the seat cushion 602. As shown in FIGS. 31 and 32 , the storage portion 604 moves from the normal position to the stored position in response to the operation of the switching member 603 to switch the seat body from the in-use state to the folded state. In other words, when the seat body is in the in-use state, the storage portion 604 is in the normal position. On the other hand, when the seat body is in the folded state, the storage portion 604 is in the stored position.

[0186] In this way, the storage portion 604 can be retracted toward the rear side of the seat cushion 602 in conjunction with the operation of storing the seat cushion 602 into the floor F (the operation of diving down the seat body). Therefore, even when the seat cushion 602 is stored into the floor F, the storage portion 604 can be retracted to a position where it does not get in the way. Note that even when the seat cushion 602 is in the normal position without diving down, the storage portion 604 is configured to be retractable toward the rear side of the seat cushion 602 by the rotating member 605.

[0187] The underside of the seat cushion 602 is formed with a recess 602b for storing the storage portion 604 and a depression 602c for storing the fixing portion 606. The recess 602b is provided on the rear side of the seat cushion 602 in the front-to-rear direction, and is formed so as to recess upward from the underside of the seat cushion 602. The depression 602c is provided on the front side of the seat cushion 602 in the front-to-rear direction, and is formed so as to recess upward from the underside of the seat cushion 602.

[0188] 32, when the storage portion 604 is in the storage position, it is stored in the recess 602b, so that the underside of the seat cushion 602 can be placed (stored) in contact with the floor F. In this way, when the seat body is in the folded state, the storage portion 604 is stored inside the recess 602b, so that the seat body can be folded into a small size.

[0189] 30 and 31 , the rotating member 605 is a link member that connects the seat cushion 602 and the storage portion 604 and moves the storage portion 604 relative to the seat cushion 602. The rotating member 605 has a first link 620 rotatably attached to the first arm portion 610, a second link 621 attached to the storage portion 604, a connecting link 622 that connects the first link 620 and the second link 621 and is rotatably attached to the first link 620 and the second link 621, and a moving portion 623 that is attached to the connecting link 622 and moves the connecting link 622 rearward relative to the seat cushion 602. The moving portion 623 connects the cushion frame 602 a and the connecting link 622 and has a curved connecting link 624 rotatably attached to the cushion frame 602 a and the connecting link 622.

[0190] 30 and 31 , the rotating member 605 has a first rotating shaft 605a that rotates the front end of the first link 620 to the first arm portion 610, a second rotating shaft 605b that rotates the rear end of the first link 620 to the upper end of the connecting link 622, a third rotating shaft 605c that rotates the lower end of the connecting link 622 to the rear end of the second link 621, a fourth rotating shaft 605d that rotates the front end of the second link 621 to the storage portion 604, a fifth rotating shaft 605e that rotates the upper end of the connecting link 624 to the second arm portion 612, and a sixth rotating shaft 605f that rotates the lower end of the connecting link 624 to the central portion of the connecting link 622. Each rotation shaft of the rotating member 605 may be provided with a biasing mechanism (torsion spring or the like) that assists the operation of switching the storage section 604 from the normal position to the storage position.

[0191] As shown in Fig. 31 , the first link 620 is a long link that extends linearly in the front-to-rear direction. The front end of the first link 620 is rotatably attached to the center of the first arm portion 610 that is attached to the seat cushion 602. Therefore, as shown in Fig. 32 , the first link 620 moves forward while remaining substantially parallel to the floor F in conjunction with the forward rotation of the first arm portion 610.

[0192] As shown in Fig. 31 , the connecting link 622 is a long link that extends linearly in the vertical direction. The upper end of the connecting link 622 is rotatably attached to the rear end of the first link 620. Therefore, as shown in Fig. 32 , the connecting link 622 rotates about the sixth rotation shaft 605f in conjunction with the forward movement of the first link 620.

[0193] As shown in Fig. 31 , the second link 621 is a long link that extends linearly in the front-to-rear direction. The rear end of the second link 621 is rotatably attached to the lower end of the connecting link 622. Therefore, as shown in Fig. 32 , the second link 621 moves rearward in conjunction with the connecting link 622 rotating forward about the sixth rotation shaft 605f and the rear end of the connecting link 622 moving rearward.

[0194] 31 , the moving unit 623 is attached to the connecting link 622 and moves the connecting link 622 rearward relative to the seat cushion 602. As shown in FIG 32 , as the moving unit 623 moves the connecting link 622 rearward, the second link 621 moves rearward relative to the seat cushion 602, and the storage unit 604 moves rearward from the normal position to the storage position.

[0195] The connecting link 624 is a link having a banana shape that is curved so as to be convex forward, as shown in Fig. 31. Because the connecting link 624 has a curved shape, the lower end of the connecting link 622 moves smoothly backward in conjunction with the switching operation of the switching member 603.

[0196] In this embodiment, as shown in FIGS. 31 and 32 , the moving portion 623 is provided so that the moving portion 623 retracts the storage portion 604 rearward in response to the switching operation of the switching member 603. However, the present invention is not limited to this configuration. The vehicle seat S7 may be configured without the moving portion 623. Furthermore, the switching member 603 and the rotating member 605 may not be interlocked. For example, if the moving portion 623 is not provided, the occupant may manually push the storage portion 604 rearward to move the storage portion 604 from the normal position to the stored position. In this case, the storage portion 604 and the rotating member 605 may be stored inside the recess 602b of the seat cushion 602 or below the lower surface of the seat cushion 602.

[0197] As shown in Figure 31, the fixing portion 606 is an arm member that is long in the vertical direction and fixes the storage portion 604 in a normal position. The fixing portion 606 is rotatably provided at the lower end of the front portion of the seat cushion 602. In other words, the fixing portion 606 rotates in the front-to-rear direction around a support shaft 606a relative to the seat cushion 602. A locking portion 606b (e.g., a member such as a latch, J-hook, or hook-and-loop fastener) is provided at the lower end of the fixing portion 606. The locking portion 606b locks onto a locking portion formed on the upper surface of the storage main body portion 604a of the storage portion 604.

[0198] The support shaft 606a is configured to be able to hold the orientation of the storage section 604 (the arm angle of the fixing section 606 in a side view of the seat) at a predetermined position when the storage section 604 is in the normal position. The angle may be held by a known locking mechanism that locks the storage section 604 at a predetermined position and unlocks it with a button, or by a mechanism that holds the storage section 604 at a predetermined angle by frictional force. Therefore, as shown in FIG. 31 , when the storage section 604 is in the normal position, the support shaft 606a engages with the fixing section 606 so that the orientation of the opening 604a1 can be adjusted.

[0199] When the seat is in the normal position shown in Fig. 31 , the storage portion 604 is engaged with the locking portion 606b of the fixing portion 606 and fixed below the front portion of the seat cushion 602. When the seat is in the stored position shown in Fig. 32 , the storage portion 604 is disengaged from the locking portion 606b of the fixing portion 606 and stored below the rear portion of the seat cushion 602. At this time, the fixing portion 606 is stored in a recess 602c formed in the underside of the seat cushion 602. When the seat body dives down and abuts against the floor F, the fixing portion 606 is stored in the recess 602c, so that the fixing portion 606 does not get in the way and the seat body fits in well.

[0200] In this way, since the storage section 604 is fixed by the fixing section 606, the storage section 604 can be held in a suitable position when in the normal position. Furthermore, since the angle of the storage section 604 (the orientation of the opening 604a1) can be adjusted, items stored in the storage section 604 can be easily removed. Specifically, when the cover 604b is pulled out from the storage section 604 and attached to the rear surface of the seat back 601 (when the seat back 601 and the seat cushion 602 are covered with the cover 604b), the cover 604b can be smoothly pulled out upward by tilting the storage section 604 upward. Furthermore, when the cover 604b is pulled out from the storage section 604 and attached to an interior component disposed forward (when covering the floor F in front of the vehicle seat S7), the cover 604b can be smoothly pulled out downward by tilting the storage section 604 downward.

[0201] 31 and 32 , the movement of the seat body by the switching member 603 and the movement of the storage section 604 by the rotating member 605 will be described. The storage section 604 moves from the normal position to the storage position in response to the operation of switching the seat body from the use state to the folded state.

[0202] More specifically, the occupant first disengages the locking portion 606b of the fixing portion 606 from the storage main body portion 604a. Then, when the occupant tilts the seat back 601 forward, the second arm portion 612 moves forward, and the first arm portion 610 rotates forward about the first shaft 603a. The first link 620 moves forward in conjunction with the rotation of the first arm portion 610. At this time, the upper end of the connecting link 624 moves forward in conjunction with the forward movement of the second arm portion 612.

[0203] When the first link 620 moves forward, the central portion of the connecting link 622 is pushed up by the lower end (sixth pivot shaft 605f) of the coupling link 624, and the rear end (third pivot shaft 605c) of the connecting link 622 moves rearward. As the rear end of the connecting link 622 moves rearward, the second link 621 moves rearward, and the storage portion 604 moves rearward relative to the seat cushion 602. Then, when the lower surface of the seat cushion 602 abuts against the floor F, the storage portion 604 is stored in the recess 602b of the seat cushion 602. In addition, the fixing portion 606 rotates around the support shaft 606a and is stored in the depression 602c of the seat cushion 602.

[0204] In this way, in conjunction with the operation of the switching member 603 to switch the seat back 601 and the seat cushion 602 from the in-use state to the folded state, the moving unit 623 moves the connecting link 622 rearward relative to the seat cushion 602. The storage unit 604 then moves from the normal position to the stored position as the rotating member 605 rotates relative to the seat cushion 602. Note that when the storage unit 604 is returned from the stored position to the normal position, the movement is reversed from the movement described above.

[0205] With the above configuration, the rotating member 605 retracts the storage portion 604 rearward, and the storage portion 604 moves below the seat cushion 602. Because the storage portion 604 is retracted rearward from the front end of the seat cushion 602, the space below the seat cushion 602 can be effectively utilized. Specifically, other items can be stored below the front end of the seat cushion 602. In addition, because the storage portion 604 is no longer located below the front end of the seat cushion 602, the seat body can dive down.

[0206] In particular, because the rotating member 605 is made up of multiple links, the storage section 604 can be retracted below the seat cushion 602 with a simple configuration. Also, because the connecting link 622 is moved rearward by the moving section 623, the storage section 604 can be retracted below the seat cushion 602 with a simple configuration. Furthermore, the multiple links can narrow the distance between the seat cushion 602 and the storage section 604 in the up-down direction. Therefore, the space below the seat cushion 602 can be used more effectively.

[0207] Furthermore, the storage portion 604 can be retracted rearward in conjunction with the operation of storing the seat back 601 and the seat cushion 602 into the floor F. Therefore, even when the seat cushion 602 is stored into the floor F, the storage portion 604 can be easily retracted to a position where it does not get in the way. At this time, the storage portion 604 is retracted inside a recess 602b formed on the underside of the seat cushion 602, allowing the seat cushion 602 to be stored even more compactly. Note that the storage portion 604 moves simultaneously with the seat body by a link mechanism so as to be linked to the switching operation of the seat body, but they do not necessarily need to move simultaneously. For example, the storage portion 604 may move to the storage position after the seat body is folded.

[0208] 33 and 34 are side views of a vehicle seat S7 according to a first modification of the seventh embodiment. In the vehicle seat S7 according to the first modification, the configuration of the moving section 633 is different from that of the moving section 623. The moving section 633 connects the cushion frame 602a and the connecting link 622, and has an elastic member 634 that is elastic and can expand and contract between the cushion frame 602a and the connecting link 622.

[0209] The elastic member 634 is, for example, a coil spring, and biases the connection link 622 in a direction pushing it rearward. The elastic member 634 smoothly moves the lower end of the connection link 622 rearward in conjunction with the switching operation of the switching member 603. Note that the elastic member 634 may be any member that expands and contracts in a direction that moves the connection link 622 rearward, and may be, for example, an elastic member such as a rubber band.

[0210] The storage section 604 moves from the normal position shown in Fig. 33 to the storage position shown in Fig. 34 by the expandable member 634 in conjunction with the operation of switching the seat body from the use state to the folded state. Specifically, when the first link 620 moves forward in conjunction with the rotation of the first arm section 610, the expandable member 634 extends so as to push up the central section (sixth rotation shaft 605f) of the connecting link 622, and the rear end (third rotation shaft 605c) of the connecting link 622 moves rearward.

[0211] In this way, the connecting link 622 is moved rearward by the elastic member 634 of the moving portion 633, so that the storage portion 604 can be retracted below the seat cushion 602 with a simple configuration.

[0212] <Manufacturing Method> A manufacturing method for the vehicle seat S7 will be described. In the manufacturing method for the vehicle seat S7, a seat body is prepared, which includes a seat back 601 that supports the back of the occupant and a seat cushion 602 that supports the buttocks of the occupant. Then, a switching member 603 is attached to connect the seat back 601 and the seat cushion 602. At this time, it is preferable that the switching member 603 is configured to enable the seat body to be switched between an in-use state and a folded state. Then, a rotating member 605 is attached to the seat cushion 602 so as to be rotatable, and a storage section 604 that can store items is connected to the seat cushion 602 via the rotating member 605.

[0213] When connecting the storage section 604 to the seat cushion 602, the storage section 604 is disposed below the seat cushion 602. At this time, the storage section 604 is attached to a rotating member 605 attached to the seat cushion 602 so that the storage section 604 can move between a normal position where it is disposed below the front part of the seat cushion 602 and a stored position that is further rearward than the normal position and stored below the seat cushion 602. By using the above manufacturing method, it is possible to manufacture a vehicle seat S7 that can effectively utilize the space below the seat cushion 602.

[0214] Eighth Embodiment Next, a vehicle seat S8 according to an eighth embodiment will be described with reference to Figures 35 to 37. Description of configurations that overlap with those of the vehicle seat S7 described above will be omitted. The vehicle seat S8 differs mainly in the configuration of the switching member 703.

[0215] As shown in Fig. 35, the vehicle seat S8 is mainly composed of a seat back 701 and a seat cushion 702. A back frame 701a serving as a skeleton is provided inside the seat back 701. A cushion frame 702a serving as a skeleton is provided inside the seat cushion 702. The cushion frame 702a is rotatably attached to the back frame 701a.

[0216] 35 and 36 , the vehicle seat S8 includes a switching member 703 that switches a seat back 701 and a seat cushion 702 between an in-use state and a folded state, a storage section 704 that is disposed below the seat cushion 702, a rotating member 705 that is rotatably attached to the seat cushion 702, and a fixing section 706 that fixes the storage section 704 in a normal position. The rotating member 705 connects the seat cushion 702 and the storage section 704 via the switching member 703, and moves the storage section 704 relative to the seat cushion 702.

[0217] As shown in Figures 35 and 36, the switching member 703 has a first arm portion 710 that is rotatably attached to the front portion of the cushion frame 702a, a first support portion 711 that rotatably supports the first arm portion 710 relative to the floor F, and a frame support portion 713 that is rotatably attached to the lower end of the back frame 701a.

[0218] The switching member 703 has a first axis 703a that rotatably connects the lower end of the first arm portion 710 to the first support portion 711, a second axis 703b that rotatably connects the upper end of the first arm portion 710 to the front end of the cushion frame 702a, a third axis 703c that rotatably connects the cushion frame 702a to the back frame 701a, and a fourth axis 703d that rotatably connects the lower end of the back frame 701a to the frame support portion 113.

[0219] The first arm portion 710 is a long member extending toward the floor F and is rotatably attached to the front portion of the cushion frame 702a. The first support portion 711 is a rail device bracket disposed on the floor F and supports the first arm portion 710 rotatably with respect to the floor F. The frame support portion 713 is attached to the first support portion 711 and supports the back frame 701a rotatably with respect to the floor F.

[0220] Next, the movement of the seat body by the switching member 703 and the movement of the storage portion 704 by the rotating member 705 will be described with reference to Figures 35 and 36. First, the occupant releases the locked state between the fixed portion 706 and the storage portion 4. When the occupant tilts the seat back 701 forward, the cushion frame 702a moves forward and the first arm portion 710 rotates forward about the first shaft 703a. The first link 720 moves forward in conjunction with the rotation of the first arm portion 710. At this time, the upper end of the connecting link 724 moves forward in conjunction with the forward movement of the cushion frame 702a.

[0221] When the first link 720 moves forward, the central portion of the connecting link 722 is pushed up by the lower end of the connecting link 724, and the rear end of the connecting link 722 moves rearward. As the rear end of the connecting link 722 moves rearward, the second link 721 moves rearward, and the storage portion 704 moves rearward relative to the seat cushion 702. In addition, the fixing portion 706 rotates around the support shaft 706a and is positioned rearward of the front end of the seat cushion 702.

[0222] In this way, in conjunction with the operation of the switching member 703 to switch the seat back 701 and the seat cushion 702 from the in-use state to the folded state, the moving portion 723 (connecting link 724) moves the connecting link 722 rearward relative to the seat cushion 702. Then, the rotating member 705 rotates relative to the seat cushion 702, causing the storage portion 704 to move from the normal position to the stored position.

[0223] 37 is a side view of a vehicle seat S8 according to a second modification of the eighth embodiment. The vehicle seat S8 according to the second modification has a different configuration for the moving portion 733. Specifically, a biasing member 734 is provided as the moving portion 733 instead of the connecting link 724.

[0224] The moving section 733 has a biasing member 734 attached to the rotation shaft of the first link 720, the connecting link 722, or the second link 721, and biases the connecting link 722 rearward. The biasing member 734 is, for example, a torsion spring, and assists the operation of switching the storage section 704 between the normal position and the stored position. The biasing member 734 is provided on each rotation shaft of the rotating member 705. Specifically, the biasing member 734 has a first biasing member 734a attached to the first rotation shaft 705a, a second biasing member 734b attached to the second rotation shaft 705b, and a third biasing member 734c attached to the third rotation shaft 705c.

[0225] In conjunction with the operation of the first support portion 711 rotating the first arm portion 710 to switch the seat back 701 and the seat cushion 702 from the in-use state to the folded state, the biasing member 734 moves the connecting link 722 rearward relative to the seat cushion 702. In this way, the connecting link 722 is moved rearward by the biasing force of the biasing member 734 of the moving portion 733, so that the storage portion 704 can be retracted below the seat cushion 702 with a simple configuration.

[0226] Ninth Embodiment Next, a vehicle seat S9 according to a ninth embodiment will be described with reference to Figures 38 to 40. Description of components that overlap with those of the vehicle seats S7 and S8 described above will be omitted. As shown in Figure 38, the vehicle seat S9 is primarily composed of a seat back 801 and a seat cushion 802.

[0227] 38 to 40 , the vehicle seat S9 includes a switching member 803 that switches a seat back 801 and a seat cushion 802 among an in-use state, a folded state, and a tip-up state, a storage section 804 that is disposed below the seat cushion 802 and is capable of storing items, a rotating member 805 that is rotatably attached to the seat cushion 802, and a fixing section 806 that fixes the storage section 804 in a normal position. The rotating member 805 has a moving section 823 that moves a connecting link 822 rearward relative to the seat cushion 802. The rotating member 805 directly connects the seat cushion 802 and the storage section 804, and moves the storage section 804 relative to the seat cushion 802.

[0228] The in-use state is a state in which an occupant can be seated and the seat back 801 is in an upright position, as shown in Fig. 38. The folded state is a so-called dive-down state, as shown in Fig. 39, in which the seat back 801 is folded from the in-use state so as to overlap the seat cushion 802 and stored in the floor F of the vehicle. The vehicle seat S9 is provided in the upper level of the floor F and stored in the lower level of the floor F. The tip-up state is a state in which the front end of the seat cushion 802 is flipped rearward and folded so as to overlap the seat back 801 in the front and rear, as shown in Fig. 40.

[0229] As shown in FIG. 38 , the moving unit 823 has a pulling member 824 attached to the center of the connecting link 822 and pulling the connecting link 822 rearward. The pulling member 824 is, for example, a wire member, and connects the connecting link 822 and the seat back 801. The front end of the pulling member 824 is attached to the center of the connecting link 822, and the rear end is attached to the back surface of the seat back 801. Specifically, the pulling member 824 extends rearward from the connecting link 822, passes under the seat cushion 802, and is fixed to an attachment portion 824a near the pivotal connection portion of the seat back 801 and the seat cushion 802. The extension direction of the pulling member 824 can be switched via a reel member 824b.

[0230] 38 and 39 , in conjunction with the folding operation of the seat back 801, the pulling member 824 pulls the connecting link 822, and the connecting link 822 is moved rearward relative to the seat cushion 802. In this way, the connecting link 822 is moved rearward by the tension of the pulling member 824 of the moving portion 823, so that the storage portion 804 can be pulled below the seat cushion 802 with a simple configuration.

[0231] In this embodiment, since the fixing portion 806 is fixed to the storage portion 804, when the storage portion 804 is pulled rearward, the fixing portion 806 holds the storage portion 804 in the storage position. Therefore, as shown in Figure 39, when the seat main body is in the folded state, the storage portion 804 can be stored in a position close to the seat cushion 802 in the vertical direction (a position where the storage portion 804 and the floor F are spaced apart in the vertical direction). Also, as shown in Figure 40, when the seat main body is in the tip-up state, the storage portion 804 can be stored in a position close to the back surface (front surface) of the seat cushion 802.

[0232] Tenth Embodiment Next, a vehicle seat S10 according to a tenth embodiment will be described with reference to Fig. 41. Note that a description of the configuration that overlaps with the vehicle seats S7 to S9 described above will be omitted.

[0233] As shown in Figure 41, the vehicle seat S10 is a rear seat in a vehicle V that has two rows of seats in the front-to-rear direction. A front seat FS is disposed in front of the vehicle seat S10. The front seat FS corresponds to an interior part disposed in front of the vehicle seat S10.

[0234] As shown in Fig. 41 , the vehicle seat S10 is mainly composed of a seat back 901 and a seat cushion 902. The vehicle seat S10 is provided with a storage section 904 that is disposed below the seat cushion 902 and is capable of storing items. Although not shown in Fig. 41 , the vehicle seat S10 is also provided with a rotating member, a switching member, and a fixed section.

[0235] A cover 904b that covers the floor F of the vehicle V is stored in the storage section 904. The cover 904b is fixed in a position covering the floor F by a cover fixing portion C provided on the front seat FS or a cover fixing portion C provided on the floor F. In addition, guide members 904e are provided on both ends of the storage section 904 in the seat width direction. The guide members 904e are members having a concave shape and hold the cover 904b from the sides. When the cover 904b is in use, the cover 904b that is pulled downward is guided by the guide members 904e.

[0236] When the storage compartment 904 is in its normal position, an occupant can pull out the cover 904b from the storage compartment 904 and attach it to the front seat FS, which is a front vehicle seat located in front of the vehicle. Specifically, the front end of the cover 904b is attached to a base portion 1111a that spans between the left and right rail devices 1111 of the front seat FS. The base portion 1111a is a member that extends longitudinally in the seat width direction. A plurality of cover fixing portions C are provided on the upper surface of the base portion 1111a. Examples of the cover fixing portions C of the front seat FS include attachment members such as hook-and-loop fasteners, buttons, and magnets. In this manner, the cover 904b is fixed to the base portion 1111a of the front seat FS by the cover fixing portions C.

[0237] The floor F also has a plurality of cover fixing portions C at positions corresponding to both ends of the cover 904b in the seat width direction. Both ends of the cover 904b are attached to the cover fixing portions C provided on the floor F. Examples of the cover fixing portions C on the floor F include clips. The cover 904b is guided forward by the cover fixing portions C such as clips. In this way, the cover 904b is fixed to the floor F by the cover fixing portions C. The cover fixing portions C on the floor F may be attachment members such as hook-and-loop fasteners, buttons, magnets, etc.

[0238] In this way, the cover fixing portion C can fix the cover 904b in a suitable position even when the cover 904b covers the floor F. Furthermore, the guide member 904e can guide the cover 904b to a suitable position. Note that, although the front seat FS has been used as an example of an interior part to which the cover 904b is attached, this is not limiting. For example, the cover 904b may be attached to an interior part such as a door pillar or an instrument panel.

[0239] <Notes on Vehicle Seats of Seventh to Tenth Embodiments> The vehicle seat described above includes a seat back that supports the back of an occupant and a seat cushion that supports the occupant's buttocks. The vehicle seat also includes a storage compartment disposed below the seat cushion and capable of storing items; and a rotating member that is rotatably attached to the seat cushion, connects the seat cushion and the storage compartment, and moves the storage compartment relative to the seat cushion. The rotating member rotates relative to the seat cushion, moving the storage compartment between a normal position below the front of the seat cushion and a storage position that is further rearward than the normal position and stored below the seat cushion. This configuration allows the rotating member to retract the storage compartment rearward, moving it below the seat cushion. This allows for effective use of the space below the seat cushion.

[0240] In this case, the rotating member may include a first link rotatably attached to the seat cushion, a second link attached to the storage portion, a connecting link connecting the first link and the second link and rotatably attached to the first link and the second link, and a moving portion attached to the connecting link and moving the connecting link rearward relative to the seat cushion, wherein as the moving portion moves the connecting link rearward, the second link moves rearward relative to the seat cushion, and the storage portion moves rearward from the normal position to the stored position. With the above configuration, the storage portion can be retracted rearward by rotating each link member, thereby making it possible to move the storage portion rearward with a simple configuration.

[0241] In this case, the vehicle seat may include a switching member that switches the seat back and the seat cushion between a use state in which the occupant can sit and a folded state in which the seat back is folded from the use state so that the seat back overlaps the seat cushion and the seat back and the seat cushion are stored on the floor of the vehicle, and the moving unit may move the connecting link rearward relative to the seat cushion in response to the switching member's operation of switching the seat back and the seat cushion from the use state to the folded state. With the above configuration, the storage unit can be retracted rearward in conjunction with the operation of the seat cushion to be stored on the floor. Therefore, the storage unit can be retracted to a position that does not get in the way even when the seat cushion is stored.

[0242] In this case, the switching member may include an arm portion rotatably attached to a front end of a cushion frame that forms a framework of the seat cushion and extending toward the floor, and a support portion that is disposed on the floor and supports the arm portion rotatably relative to the floor, the moving portion may include a curved connecting link that connects the cushion frame and the connecting link and is rotatably attached to the cushion frame and the connecting link, and the connecting link moves the connecting link rearward relative to the seat cushion in response to the support portion rotating the arm portion to switch the seat back and the seat cushion from the in-use state to the folded state. With the above configuration, the connecting link allows the storage portion to be retracted rearward in conjunction with the operation of storing the seat cushion into the floor with a simple configuration.

[0243] In this case, the switching member may include an arm portion rotatably attached to a front end of a cushion frame that forms a skeleton of the seat cushion and extending toward the floor, and a support portion that is disposed on the floor and supports the arm portion rotatably relative to the floor, the moving portion may include a biasing member that is attached to a pivot shaft of the first link, the connecting link, or the second link and biases the connecting link rearward, and the biasing member moves the connecting link rearward relative to the seat cushion in response to the support portion rotating the arm portion to switch the seat back and the seat cushion from the in-use state to the folded state. With the above configuration, the biasing member allows the storage portion to be retracted rearward in conjunction with the operation of storing the seat cushion into the floor with a simple configuration.

[0244] In this case, a fixing portion for fixing the storage portion in the normal position may be provided on the front portion of the seat cushion, and the storage portion may be engaged with the fixing portion and fixed below the front portion of the seat cushion when in the normal position, and may be disengaged from the fixing portion and stored below the seat cushion when in the stored position. With the above configuration, by fixing the storage portion with the fixing portion, the storage portion can be held in a suitable position when in the normal position.

[0245] In this case, an opening for storing the item may be formed at a front end of the storage section, and the storage section may be engaged with the fixing section so that the orientation of the opening can be adjusted when the storage section is in the normal position. With the above configuration, the orientation of the opening can be adjusted, making it easier to take out the item stored in the storage section.

[0246] In this case, a recess for accommodating the storage portion may be formed on the underside of the seat cushion, and the storage portion may be accommodated in the recess when the seat cushion is in the storage position. With the above configuration, the seat cushion can be conveniently stored even when stored on the floor.

[0247] In this case, the storage section may store a cover that covers the seat back, the seat cushion, or the floor of the vehicle. With the above configuration, the cover can be stored in the space below the seat cushion, so that the cover can be stored in a position that does not get in the way when not in use.

[0248] In this case, an opening for storing the cover may be formed at the front end of the storage section, and the opening may be provided with a fastener for opening and closing the opening. With the above configuration, the opening can be easily closed with the fastener, so that the cover can be conveniently stored under the seat cushion.

[0249] In this case, the storage section may store the cover and a winding section for winding up the cover. With the above configuration, the cover is wound up and stored, thereby further reducing the storage space.

[0250] In this case, a cover for covering the floor of the vehicle is stored in the storage section, and the cover is fixed in a position covering the floor by a cover fixing portion provided on an interior component disposed in front of the vehicle seat or a cover fixing portion provided on the floor. With the above configuration, even when the floor is covered with the cover, the cover can be fixed in a suitable position.

[0251] In the present embodiment, a vehicle seat and a vehicle interior system according to the present invention have been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and of course, the present invention includes equivalents thereof.

[0252] DESCRIPTION OF SYMBOLS <First embodiment> S1 Vehicle seat Sa Seat body 1 Seat cushion 1a Cushion frame 1b Pad material 1c Covering material 2 Seat back 2a Back frame 2b Pad material 2c Covering material 3 Headrest 10 Armrest 10a Pad material 10b Covering material 11 Storage recess (storage section) 20 Armrest frame 21 Shaft support frame 22 Lever support frame 23 Wire support frame 24 Table support frame 30 Drawer member (table, drawer) 30A First drawer member 30B Second drawer member 31 Drawer body 32 Lock groove 33 Spring holding section 40 Switching device 41 Rotating shaft 41a Shaft core 41b First lock groove 41c Second lock groove 41d Third lock groove 50 Operating lever (operating member) 51 Lever operating section 52 DESCRIPTION OF THE REFERENCE NUMERALS Lever extension portion 53 Lever support portion 54 Lever biasing spring (lever biasing member) 60 First lock pin (first locking member) 61 First connecting wire (first connecting member) 62 First biasing spring 70, 70A, 70B Second lock pin (second locking member) 71, 71A, 71B Second connecting wire (second connecting member) 72 Second biasing spring (second biasing member) 73 Guide pin 80 Pull-out biasing spring (pull-out biasing member) 81 Sliding member <Second embodiment> S2 Vehicle seat 101 Seat cushion 102 Seat back 110 Armrest 120 Armrest frame 121 Shaft support frame 122 Lever support frame 122A First passing hole 122B Second passing hole 123 Wire support frame 124 Table support frame 130 Drawer member 131 Drawer body 132 Lock groove 133 Spring holding portion 140 Switching device 141 Rotation shaft 141a Axial core 141b Lock groove 150 Operating lever (operating member) 151 Lever operating portion 152 Lever extending portion 153A First lever support portion 153B Second lever support portion 154 Lever biasing spring 160 First lock pin (first locking member) 161 First connecting wire (first connecting member) 162 First biasing spring 170 Second lock pin (second locking member) 171 Second connecting wire (second connecting member) 171a Slack portion172 Second biasing spring <Third embodiment> S3 Vehicle seat 202 Seat back 210 Armrest 220 Armrest frame 221 Shaft support frame 222 Lever support frame 223 Wire support frame 224 Table support frame 230 Drawer member 231 Drawer main body 232 Lock groove 233 Spring holding portion 240 Switching device 241 Rotating shaft 241a Shaft core 242 Lock groove 242a First groove portion 242b Second groove portion 242c Step portion 250 Operating lever 251 Lever operating portion 252 Lever extending portion 253 Lever support portion 254 Lever biasing spring 260 First lock pin 260a Pin extending portion 260b Pin engaging portion 261 First connecting wire 262 First biasing spring 263 First engagement member 270 Second lock pin 271 Second connecting wire 272 Second biasing spring 273 Second engagement member 280 Drawer biasing spring 281 Sliding member <Fourth embodiment> S4 Vehicle seat 302 Seat back 310 Armrest 320 Armrest frame 330 Drawer member 331 Drawer body 332 Lock groove 333 Rotating shaft 334 Handle portion 340 Switching device 341 Rotating shaft 341b First lock groove 341c Second lock groove 341d Third lock groove 350 Operating lever 354 Lever biasing spring 360 First lock pin 361 First connecting wire 362 First biasing spring 370 Second lock pin 371 Second connecting wire 372 Second biasing spring 380 Pull-out biasing spring <Fifth and sixth embodiments> S5, S6 Vehicle interior system 401 Vehicle seat 401A First vehicle seat (first seat portion) 401B Second vehicle seat (second seat portion) 401C Central seat (central seat portion) 402 Seat body 410 Seat cushion 410a Cushion frame 410b Pad material 410c Covering material 411 Cushion central portion 412 Cushion side portion 413 Mounting portion 414 First engaged recess (first engaged portion) 415 Second engaged recess (second engaged portion) 416 Holding member 417 Detection sensor (detection portion) 420 Seat back 420a Back frame 420b Pad material420c Covering material 421 Back center portion 422 Back side portion 430 Headrest 430A First headrest 430B Second headrest (second cushion body) 430a Pillar 430b Pad material 430c Covering material 440 Reclining device 441 Reclining main body 442 Rotating shaft 443 Spiral spring 450 Cushion changing device 451 Bag body 452 Air pump 453 Air piping 460 Pressure detection sensor (pressure detection unit, first pressure detection unit) 470 Control device 475 Power supply unit 480 Cushion body 480a Pad material 480b Covering material 480c Support surface 481 Main body portion 482 First engaging protrusion (first engaging portion), engaging portion 483 Second engaging protrusion (second engaging portion) 484 Pressure detection sensor (pressure detection portion, second pressure detection portion) 485 Seat heater 486 Power receiving portion 501 Vehicle door 502 Door panel 503 Door lining 510 Armrest 511 Armrest body 512 Handle portion (first engaged recess), first engaged portion 513 Second engaged recess, second engaged portion 520 Operating handle 530 Pocket 540 Switch device 550 Detection sensor (detection portion) 560 Power supply portion P Power source <Seventh, eighth, ninth, and tenth embodiments> S7, S8, S9, S10 Vehicle seat FS Front seat (interior part) 601, 701, 801, 901 Seat back 601a, 701a Back frame 602, 702, 802, 902 Seat cushion 602a, 702a Cushion frame 602b Recessed portion 602c Cavity 603, 703, 803 Switching member 603a, 703a First shaft 603b, 703b Second shaft 603c, 703c Third shaft 603d, 703d Fourth shaft 603e Fifth shaft 604, 704, 804, 904 Storage section 604a Storage main body section 604a1 Opening 604b, 904b Cover 604c Winding section 604d Fastener 605, 705, 805 Rotating member 605a, 705a First rotating shaft 605b, 705b Second rotating shaft 605c, 705c Third rotating shaft 605d Fourth rotating shaft 605e Fifth rotation axis 605f Sixth rotation axis 606, 706, 806 Fixed part606a, 706a Support shaft 606b Locking portion 610, 710 First arm portion (arm portion) 611, 711 First support portion (support portion) 612 Second arm portion 613 Third arm portion 614 Fourth arm portion 614a Engagement portion 615 Second support portion 615a Rear surface 620, 720 First link 621, 721 Second link 622, 722, 822 Connecting link 623, 633, 723, 733, 823 Moving portion 624, 724 Connecting link 634 Expandable member 713 Frame support portion 734 Urging member 734a First urging member 734b Second urging member 734c Third urging member 824 Pulling member 824a Mounting portion 824b Reel member 904e Guide member 1111 Rail device 1111a Base portion F Floor St Striker C Cover fixing portion

Claims

1. A vehicle seat comprising: a seat body; an armrest provided on a side portion of the seat body; a switching device that switches the armrest relative to the seat body between a normal position and a moved position moved from the normal position; and a pull-out member attached so as to be deployable from the armrest, wherein the pull-out member is configured to be switchable between a stored position stored in the armrest and a deployed position deployed from the armrest, and the switching device has: a first locking member that locks the movement of the armrest when the armrest is in the moved position; and a second locking member that locks the movement of the pull-out member when the pull-out member is in the deployed position; and operating members connected to each of the first locking member and the second locking member, and that are operated to release the locked state of the first locking member and the locked state of the second locking member.

2. The vehicle seat described in claim 1, characterized in that the switching device comprises a first biasing member that biases the first locking member from an unlocked state to a locked state, and a second biasing member that biases the second locking member from the unlocked state to the locked state, and the switching device moves the first locking member biased by the first biasing member from the locked state to the unlocked state in response to the amount of operation of the operating member, and moves the second locking member biased by the second biasing member from the locked state to the unlocked state in response to the amount of operation of the operating member.

3. The vehicle seat described in claim 1, characterized in that the operating member is attached to the armrest so as to be rotatable between a first rotation position and a second rotation position, and the switching device moves one of the first locking member and the second locking member from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the first rotation position, and moves the other or both of the first locking member and the second locking member from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the second rotation position.

4. The vehicle seat described in claim 3, characterized in that the switching device comprises a linear first connecting member that connects the operating member and the first locking member, and a linear second connecting member that connects the operating member and the second locking member and has a length different from that of the first connecting member, and the switching device releases the locked state of the first locking member and the locked state of the second locking member by pulling the first connecting member and the second connecting member in response to operation of the operating member.

5. The vehicle seat described in claim 4, characterized in that: the operating member is an operating lever, the operating lever having a lever operating portion operated by an occupant and a lever support portion inserted into the armrest and supported by the armrest frame, the armrest frame being formed with a first through hole and a second through hole penetrating in the longitudinal direction of the operating lever to allow the lever support portion to pass through, and the switching device, when the operating member is in a reference position, the lever support portion abuts against the armrest frame to maintain the first locking member and the second locking member in a locked state, when the operating member is in the first pivot position, the lever support portion passes through the first through hole in response to operation of the operating member, thereby moving the first locking member to an unlocked state, and when the operating member is in the second pivot position, the lever support portion passes through the second through hole in response to operation of the operating member, thereby moving the first locking member and the second locking member to an unlocked state.

6. The vehicle seat described in claim 3, characterized in that the switching device comprises a first connecting member connecting the operating member and the first locking member, and a second connecting member connecting the operating member and the second locking member, the operating member being an operating lever having a lever operating portion operated by an occupant and a lever support portion inserted into the interior of the armrest and supported by an armrest frame, a first engagement member being attached to one end of the first connecting member and a second engagement member being attached to one end of the second connecting member, and the switching device moves the first locking member from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the first pivot position and the lever support portion is engaged with the first engaging member, and moves the second locking member from a locked state to an unlocked state in response to operation of the operating member when the operating member is in the second pivot position and the lever support portion is engaged with the second engaging member.

7. The vehicle seat described in claim 1, characterized in that the switching device includes a rotation shaft that rotatably attaches the armrest to the seat body, the first locking member is provided inside the armrest, and the first locking member is a locking pin that engages with a locking groove formed on the outer surface of the rotation shaft.

8. The vehicle seat described in claim 7, characterized in that the lock groove is formed in an arc shape centered on the axis of the rotating shaft and is arranged to pass above the axis, the lock pin moves along the lock groove while engaged with the lock groove as the armrest is rotated, and a step portion is formed at an upper end of the lock groove.

9. The vehicle seat described in claim 7, characterized in that the lock groove has a first groove portion formed in an arc shape centered on the axis of the rotating shaft and passing above the axis, and a second groove portion formed continuous with the rear end of the first groove portion and extending forward from the rear end of the first groove portion towards the axis, and the switching device locks the movement of the armrest by engaging the lock pin with the second groove portion when the armrest is in the moved position.

10. The vehicle seat described in claim 7, characterized in that the switching device comprises: a first biasing member that biases the first locking member from the unlocked state to the locked state; and a second biasing member that biases the second locking member from the unlocked state to the locked state and has a biasing force different from that of the first biasing member.

11. The vehicle seat described in claim 1, characterized in that the pull-out member is stored in a storage recess provided in the armrest, the switching device comprises: a sliding member provided in the armrest and slidably supporting the pull-out member; and a pull-out biasing member that biases the pull-out member from the stored position to the deployed position, and the pull-out member is pulled out from the stored position to the deployed position as the second locking member is unlocked.

12. The vehicle seat described in claim 1, characterized in that the seat body has a seat cushion and a seat back, the armrest is rotatably attached to a back frame of the seat back, and the pull-out member is a table that can be pulled out from the armrest, or a drawer that can be pulled out from the armrest and is capable of storing items.

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