JP4716824B2

JP4716824B2 - Vehicle seat

Info

Publication number: JP4716824B2
Application number: JP2005253428A
Authority: JP
Inventors: 宏文武藤; 和久一色; 尚志竹本; 貴文関野; 康之奥村; 由希規杉浦
Original assignee: Toyota Boshoku Corp; Toyota Auto Body Co Ltd; Toyota Motor Corp
Current assignee: Toyota Boshoku Corp; Toyota Auto Body Co Ltd; Toyota Motor Corp
Priority date: 2005-09-01
Filing date: 2005-09-01
Publication date: 2011-07-06
Anticipated expiration: 2025-09-01
Also published as: JP2007062636A

Description

本発明は車両用シート、例えばワゴン車等のセカンドシートに用いられ、チャイルドシート等が装着される一人掛け用の回転シートに関する。 The present invention relates to a rotating seat for a single seat used for a vehicle seat, for example, a second seat such as a wagon car, to which a child seat or the like is attached.

従来、図８に示すように、車体の左右両側にスライドドアＤ１，Ｄ２を備えた両側スライドドアタイプのワゴン車等では、セカンドシートとして、左右のドア開口Ｋ１，Ｋ２に隣接するように車室の左右両側にそれぞれ一人掛け用のシートＳ１，Ｓ２が設置されている。この種のセカンドシートＳ１，Ｓ２は、シートクッションとリクライニング可能なシートバックからなるシート本体を回転装置に支持せしめ、シート本体を車両前向き位置と、サードシートＳ３と対面する後向き位置とに方向転換可能な回転シートが用いられている。回転シートからなるセカンドシートＳ１，Ｓ２は回転時にシートバックが車室側面等に当たって回転に支障がないように、シートバックを前倒しすることで回転装置のロック機構が解除され、シートを回転させるように構成されている。 Conventionally, as shown in FIG. 8, in a double-sided sliding door type wagon equipped with sliding doors D1 and D2 on the left and right sides of the vehicle body, as a second seat, the passenger compartment is adjacent to the left and right door openings K1 and K2. Seats S1 and S2 for one person are installed on both the left and right sides. This type of second seats S1 and S2 allows a rotating device to support a seat body composed of a seat cushion and a reclining seat back, and the seat body can be turned to a vehicle forward position and a rearward position facing the third seat S3. A rotating sheet is used. The second seats S1 and S2 made of a rotating seat are configured so that the locking mechanism of the rotating device is released by rotating the seat back forward so that the seat back does not interfere with the rotation when the seat back hits the side of the passenger compartment or the like when rotating. It is configured.

両側スライドドアタイプのワゴン車では、一般にセカンドシートＳ１，Ｓ２へチャイルドシートＣＳを装着することが行われる。左右いずれのセカンドシートＳ１，Ｓ２に装着しても、大人が子供を抱き上げた状態で左右のドア開口Ｋ１，Ｋ２から子供をチャイルドシートＣＳへ座らせることができるが、子供をチャイルドシートＣＳへ座らせる場合、シートの真横から座らせることとなり、チャイルドシートＣＳは左右両側のサポート部が大きく上方へ張り出しているので座らせるのに手間がかかる。そこで、セカンドシートＳ１，Ｓ２をドア開口Ｋ１，Ｋ２側へ向けて所定の方向転換させることでスムーズに座らせることができるが、従来のセカンドシートＳ１，Ｓ２では、チャイルドシートＣＳを装着することによりシートバックを前倒しまたは前傾姿勢にできないので、シートの方向転換ができないといった問題があった。 In both-side sliding door type wagon vehicles, the child seat CS is generally mounted on the second seats S1 and S2. Even if it is attached to either the left or right second seat S1, S2, the child can be seated on the child seat CS from the left and right door openings K1, K2 while the adult is holding the child, but the child is seated on the child seat CS. The child seat CS takes time and effort to sit because the support portions on both the left and right sides protrude greatly upward. Therefore, the second seats S1 and S2 can be seated smoothly by changing the direction toward the door openings K1 and K2, but the conventional second seats S1 and S2 can be seated by attaching the child seat CS. There was a problem that the seat could not be changed because the back could not be brought forward or tilted forward.

図９に示すように従来の車両用回転シートとして、下記特許文献１，２では、片側スライドドアタイプのワゴン車に設置されるベンチシートタイプのセカンドシートＳ４を、シートバックが前倒しまたは前傾させて回転ロックを解除し、前方または後方向きに方向転換可能とするとともに、ドア開口Ｋ３とは反対方向へ向けて斜めに回転させ、ドア開口Ｋ３からサードシートＳ５への乗降性を良くするウォークスルー作動をさせることが提案されている。ウォークスルー作動によりドア開口Ｋ３とは反対方向へ回転するシートＳ４は、チャイルドシートを装着したとき、チャイルドシートへ子供を座らせるのに都合のいいものとはいえない。
実公平６−１９４００号公報特開平８−６７１８１号公報 As shown in FIG. 9, as a conventional vehicle rotating seat, in Patent Documents 1 and 2 below, a seat back of a bench seat type second seat S4 installed in a one-side sliding door type wagon car is tilted forward or tilted forward. The rotation lock is released and the direction can be changed to the front or rear direction, and it is rotated obliquely in the direction opposite to the door opening K3 to improve the boarding / exiting ability from the door opening K3 to the third seat S5. It has been proposed to operate. The seat S4 that rotates in the direction opposite to the door opening K3 by the walk-through operation is not convenient for seating a child on the child seat when the child seat is attached.
No. 6-19400 JP-A-8-67181

そこで本発明は、ワゴン車等のセカンドシート等、ドア開口に隣設された一人掛け用の回転シートにおいて、チャイルドシート等の装着時に、シートバックを前倒しせずにドア開口側へ向けて所定の範囲回転させることができ、チャイルドシート等に子供を容易に座らせることのできる車両用シートを提供することを課題として成されたものである。 Accordingly, the present invention provides a predetermined range for a single-seat rotating seat adjacent to the door opening, such as a second seat of a wagon car, etc., when the child seat is mounted, without moving the seat back forward to the door opening side. An object of the present invention is to provide a vehicle seat that can be rotated and can easily allow a child to sit on a child seat or the like.

本発明は、車室のドア開口に隣設された一人掛け用の車両用シートであって、シートクッションと、リクライニング可能のシートバックとからなるシート本体が回転装置に載置されて回転可能とされ、かつロック機構によってシート本体は少なくとも前向きまたは後向きの方向でロックされ、上記シートバックを傾動させるリクライニングハンドルの操作によるシートバックの前倒しと連動して上記ロック機構を解除させてシート本体を方向転換せしめる車両用シートにおいて、上記シートバックの起立状態で上記ロック機構のロックを解除可能な操作ハンドルと、該操作ハンドルの操作により、シートバック起立状態でシート本体を上記ドア開口へ向けて回転させたときに、ドア開口へ向けた所定の回転位置でシート本体の回転を規制する回転規制手段を具備し、かつ上記回転規制手段を、上記シートバックの前倒しに連動して規制を解除するようになす（請求項１）。 The present invention is a single-seat vehicular seat adjacent to a door opening of a passenger compartment, and a seat body including a seat cushion and a reclining seat back is mounted on a rotating device and is rotatable. And the seat body is locked at least in the forward or backward direction by the locking mechanism, and the seat body is changed by releasing the locking mechanism in conjunction with the forward tilting of the seat back by operating the reclining handle for tilting the seat back. In the vehicle seat to be squeezed, an operation handle that can unlock the lock mechanism when the seat back is raised, and the operation of the operation handle causes the seat body to rotate toward the door opening when the seat back is raised. Sometimes, the rotation of the seat body is restricted at a predetermined rotational position toward the door opening. Comprising a rolling regulating means, and the rotation restricting means forms to release the restriction by association with a forward folding operation of the seatback (claim 1).

操作ハンドルの操作によりシートバック起立状態でも回転ロックを解除できるようにしたので、チャイルドシート装着状態でシートを回転させることができ、回転規制手段によりシートをドア開口へ向けた所定の位置で回転規制するので、チャイルドシートへ子供を容易に座らせることができる。また、チャイルドシート非装着時には、リクライニングハンドルの操作でシートバックを前倒しすることで、回転規制手段が解除されシートを前後方向に方向転換できる。 Since the rotation lock can be released even when the seat back is upright by operating the operation handle, the seat can be rotated with the child seat mounted, and the rotation is restricted at a predetermined position toward the door opening by the rotation restricting means. Therefore, the child can be easily seated on the child seat. Further, when the child seat is not attached, the seat back is moved forward by operating the reclining handle, so that the rotation restricting means is released and the seat can be turned in the front-rear direction.

上記回転装置は、車室フロア側に設けたロア部材と、該ロア部材に対して回転可能なアッパ部材とを備え、該アッパ部材に上記シート本体を載置せしめ、上記ロック機構を、上記回転装置のロア部材またはアッパ部材の一方の部材に設けた係合部と、該係合部に対応して、他方の部材に揺動可能に軸支せしめ上記係合部に係脱可能に係合せしめて回転装置をロックするロックレバーとで構成し、該ロックレバーと上記操作ハンドルとを第１の連結手段で連結し、操作ハンドルの操作でロックレバーをロック解除方向へ揺動せしめる。上記回転規制手段として、上記回転装置の上記一方の部材に規制突起を突設する一方、該規制突起に対応して上記他方の部材に、上記ロックレバーと同軸に揺動可能に規制レバーを設け、上記ドア開口側への回転時に、規制レバーを上記規制突起に当接せしめて回転を規制するようになし、上記規制レバーを第２の連結手段により上記シートバックのリクライニング機構と連結し、シートバックの前倒しに連動して規制レバーを規制解除方向へ揺動せしめるようになし、かつ上記規制レバーには上記ロックレバー側へ延びる延出部を設け、規制レバーの上記規制解除方向への揺動時に、上記延出部をロックレバーに当接せしめてロックレバーを上記ロック解除方向へ移動せしめるようになす（請求項２）。 The rotating device includes a lower member provided on a passenger compartment floor side, and an upper member rotatable with respect to the lower member. The seat body is placed on the upper member, and the lock mechanism is rotated with the rotation member. An engaging portion provided on one of the lower member and the upper member of the apparatus, and correspondingly to the engaging portion, is pivotally supported on the other member so as to be swingably engaged with the engaging portion. The lock lever is configured to lock the rotating device, the lock lever and the operation handle are connected by the first connecting means, and the lock lever is swung in the unlocking direction by the operation of the operation handle. As the rotation restricting means, a restricting projection is provided on the one member of the rotating device, and a restricting lever is provided on the other member corresponding to the restricting projection so as to be swingable coaxially with the lock lever. The rotation of the door to the door opening side is caused to abut on the restriction protrusion to restrict the rotation, and the restriction lever is connected to the reclining mechanism of the seat back by the second connecting means. The restriction lever is swung in the restriction release direction in conjunction with the forward tilting of the back, and the restriction lever is provided with an extending portion extending toward the lock lever so that the restriction lever swings in the restriction release direction. Sometimes, the extension portion is brought into contact with the lock lever so that the lock lever is moved in the unlocking direction (claim 2).

操作ハンドルの操作で回転ロックのロックレバーが解除されるので、チャイルドシート装着状態（シートバック起立状態）でシートの回転が可能である。この場合、シートの回転は規制レバーによりドア開口側の所定の位置で規制される。チャイルドシート非装着時には、リクライニングハンドルでシートバックを前倒しすることで規制レバーが解除され、規制レバーの解除作動によりロックレバーも解除されるので、シートを前後方向に方向転換できる。 Since the lock lever of the rotation lock is released by operating the operation handle, the seat can be rotated while the child seat is attached (the seat back is standing up). In this case, the rotation of the seat is regulated at a predetermined position on the door opening side by the regulation lever. When the child seat is not attached, the restriction lever is released by moving the seat back forward with the reclining handle, and the lock lever is also released by the release operation of the restriction lever, so that the seat can be turned in the front-rear direction.

上記操作ハンドルを、シートクッションの前面のドア開口側の端部、またはシート前向き時にドア開口側に面するシートクッションの側面の前端に設置する（請求項３）。車外側よりドア開口を介してチャイルドシート装着時の方向転換が容易にできる。 The operation handle is installed at an end portion on the door opening side of the front surface of the seat cushion, or a front end of a side surface of the seat cushion facing the door opening side when the seat is facing forward. It is possible to easily change the direction when the child seat is mounted from the outside of the vehicle through the door opening.

本発明によれば、ワゴン車のセカンドシート等、ドア開口に隣設された一人掛け用の回転シートにおいて、操作ハンドルによりシートバック起立状態でもシートをドア開口側の所定の位置へ向けて回転させるようにし、チャイルドシート等の装着時に、シートをドア開口側へ回転させることとでチャイルドシート等に子供を容易に座らせることのできる。またチャイルドシート等の非装着時にシートバックを前倒しすることで操作性よくシートを前または後ろ向きに方向転換できる。 According to the present invention, in a single-seat rotary seat adjacent to the door opening, such as a second seat of a wagon car, the operation handle rotates the seat toward a predetermined position on the door opening side even when the seat back stands up. Thus, when the child seat or the like is mounted, the child can easily sit on the child seat or the like by rotating the seat to the door opening side. The seat can be turned forward or backward with good operability by moving the seat back forward when the child seat is not attached.

図８に示した両側スライドドア車の左右のドア開口Ｋ１，Ｋ２に隣設されたセカンドシートたる一人掛け用の回転シートＳ１，Ｓ２に本発明を適用した実施形態を説明する。回転シートＳ１，Ｓ２は左右対象な構造で、図１ないし図７に基づいて右側のシートＳ２を中心に説明する。 An embodiment in which the present invention is applied to the single-seat rotary seats S1 and S2, which are second seats adjacent to the left and right door openings K1 and K2 of the both-side sliding door vehicle shown in FIG. The rotating sheets S1 and S2 have a right / left target structure, and will be described with a focus on the right sheet S2 based on FIGS.

図１ないし図３に示すように、シートＳ２はシートクッション１０と、シートクッション１０にリクライニング装置１１を介して組付けたシートバック１２とでシート本体が構成してあり、シート本体は、車室フロアに図略のスライド機構を介して前後方向に移動可能に設けられた台座１３に回転装置２を介して載置してあり前後方向に回転自在に設けてある。図１中、ＣＳはチャイルドシート、Ｋ２は車体側面のドア開口、１１０はリクライニングハンドルを示す。 As shown in FIGS. 1 to 3, the seat S2 is composed of a seat cushion 10 and a seat back 12 assembled to the seat cushion 10 via a reclining device 11. It is placed on a pedestal 13 provided on the floor through a slide mechanism (not shown) so as to be movable in the front-rear direction via the rotating device 2, and is provided so as to be rotatable in the front-rear direction. In FIG. 1, CS is a child seat, K2 is a door opening on the side of the vehicle body, and 110 is a reclining handle.

図２、図３に示すように、回転装置２はほぼリング状のロア部材２０と、ロア部材２０に沿って回転摺動可能なアッパ部材２１と、セットプレート２２とで構成してある。これらは、ロア部材２０の上部にアッパ部材２１をセットし、アッパ部材２１の内周部をロア部材２０とセットプレート２２とで、ボール部材２３を介して上下に挟み込むことで、アッパ部材２１を回転自在に支持する。尚、アッパ部材２１はその回転範囲および回転方向が図略のストッパにより規制され、、アッパ部材２１の回転範囲はシート本体を前後に方向転換可能な約１８０度の範囲とされ、回転方向はドア開口Ｋ２方向としてある。 As shown in FIGS. 2 and 3, the rotating device 2 includes a substantially ring-shaped lower member 20, an upper member 21 that can rotate and slide along the lower member 20, and a set plate 22. The upper member 21 is set on the upper part of the lower member 20, and the inner member of the upper member 21 is vertically sandwiched between the lower member 20 and the set plate 22 via the ball member 23, thereby Support for rotation. The upper member 21 has a rotation range and a rotation direction restricted by a stopper (not shown). The rotation range of the upper member 21 is a range of about 180 degrees in which the seat body can be changed back and forth, and the rotation direction is a door. The direction is the opening K2.

回転装置２は、台座１３とシートクッション１０との間で、台座１３の上面にロア部材２０のリング状の本体部の外周に張り出した外周プレート２０１を締結固定する一方、アッパ部材２１のリング状の本体部の外周に張り出した外周プレート２１１をシートクッション１０の底面に締結固定して台座１３に対してシート本体を回転自在に設置している。 The rotating device 2 fastens and fixes the outer peripheral plate 201 projecting to the outer periphery of the ring-shaped main body portion of the lower member 20 between the pedestal 13 and the seat cushion 10 on the upper surface of the pedestal 13, while the upper member 21 has a ring shape. The outer peripheral plate 211 protruding from the outer periphery of the main body is fastened and fixed to the bottom surface of the seat cushion 10, and the seat main body is rotatably installed with respect to the pedestal 13.

回転装置２には、図２ないし図４に示すように、アッパ部材２１の外周プレート２１１の前端部に、シート前向き位置または後向きの位置でロア部材２０に対してアッパ部材２１の回転をロックするロック機構たるロックレバー３０と、シート本体をドア開口側へ向けた所定の位置で回転を規制する回転規制手段たる規制レバー４０が設けてある。 As shown in FIGS. 2 to 4, the rotation device 2 locks the rotation of the upper member 21 with respect to the lower member 20 at the front end position or the rearward position of the outer peripheral plate 211 of the upper member 21. A lock lever 30 serving as a lock mechanism and a regulation lever 40 serving as a rotation regulating means for regulating rotation at a predetermined position with the seat body facing the door opening side are provided.

ロックレバー３０は、外周プレート２１１の前端部から下方へ向けて突設した支軸５０の下端に、レバー基端が揺動自在に軸支されている。ロックレバー３０のレバー先端３１はＬ字状に屈曲して回転装置２の回転中心側へ向けて突出形成してある。また上記レバー基端寄りの位置から、回転装置２の外側方向へ張り出す張出部３２が形成してある。 The lock lever 30 is pivotally supported at the lower end of a support shaft 50 projecting downward from the front end portion of the outer peripheral plate 211 so as to be swingable. The lever tip 31 of the lock lever 30 is bent in an L shape and is formed to project toward the rotation center side of the rotating device 2. In addition, an overhanging portion 32 is formed to project from the position near the lever base end toward the outside of the rotating device 2.

ロックレバー３０は、その張出部３２と外周プレート２１１の前端部の間にバネ部材３４が架設してあり、該バネ部材３４により支軸５０を中心に揺動してレバー先端３１が上記回転中心側へ向けて突出するロック方向に付勢されている。そしてロックレバー３０は、シート前向き時または後向き時に、バネ部材３４の付勢力によりレバー先端３１がロア部材２０のリング状の本体部の外周壁２０２に設けられたスリット状の係合部３５に嵌合して回転をロックする。 The lock lever 30 has a spring member 34 erected between the overhanging portion 32 and the front end portion of the outer peripheral plate 211. The spring member 34 swings about the support shaft 50 and the lever tip 31 rotates as described above. It is biased in the locking direction protruding toward the center side. The lock lever 30 is fitted to a slit-like engagement portion 35 provided on the outer peripheral wall 202 of the ring-shaped main body portion of the lower member 20 by the biasing force of the spring member 34 when the seat is facing forward or backward. And lock the rotation.

またロックレバー３０は、張出部３２の先端に連結部材たるワイヤハーネス７１の一方の端末が連結してあり、ワイヤハーネス７１の他方の端末はシートクッション１０の前面のドア開口Ｋ２寄りの側端に設けられた操作ハンドル６０（図１）と連結してある。ロックレバー３０は操作ハンドル６０の操作によりワイヤハーネス７１が引かれると上記バネ部材３４の付勢力に抗して支軸５０を中心に上記ロック方向とは反対側へ作動し、レバー先端３１が係合部３５から抜け出してロック解除する。 The lock lever 30 is connected to one end of a wire harness 71 as a connecting member at the tip of the overhang portion 32, and the other end of the wire harness 71 is a side end near the door opening K <b> 2 on the front surface of the seat cushion 10. It is connected to an operation handle 60 (FIG. 1). When the wire harness 71 is pulled by operating the operation handle 60, the lock lever 30 operates against the urging force of the spring member 34 toward the opposite side of the lock direction around the support shaft 50, and the lever tip 31 is engaged. Pull out from the joint 35 and unlock.

規制レバー４０はロックレバー３０とほぼ同形状をなし、ロックレバー３０の上方位置でかつロア部材２０の外周壁２０２よりも若干高い位置で、レバー基端が支軸５０の上下中間部に揺動自在に軸支されている。規制レバー４０は、張出部４２と外周プレート２１１の前端部の間に架設したバネ部材４４により支軸５０を中心に揺動してレバー先端４１がロア部材２０の外周壁２０２上縁よりもロア部材２０の中心側へ突出する規制方向に付勢されている。 The restriction lever 40 has substantially the same shape as the lock lever 30, and the lever base end swings to the upper and lower intermediate portions of the support shaft 50 at a position above the lock lever 30 and slightly higher than the outer peripheral wall 202 of the lower member 20. It is supported freely. The regulating lever 40 swings around the support shaft 50 by a spring member 44 installed between the overhanging portion 42 and the front end portion of the outer peripheral plate 211, and the lever tip 41 is more than the upper edge of the outer peripheral wall 202 of the lower member 20. The lower member 20 is biased in a restricting direction protruding toward the center side.

規制レバー４０には張出部４２の先端にワイヤハーネス７２の一方の端末が連結してあり、ワイヤハーネス７２の他方の端末はリクライニング装置１１によりシートバック１２の前倒し時に作動する図略の前倒し機構と連結してある。規制レバー４０は、シートバック１２の前倒し時に上記前倒し機構の作動によりワイヤハーネス７２が引かれると上記バネ部材４４の付勢力に抗して支軸５０を中心に上記規制方向とは反対の規制解除方向へ揺動して、レバー先端４１がロア部材２０の外周壁２０２上縁より外側位置へ後退する。 One end of the wire harness 72 is connected to the end of the overhang portion 42 to the restriction lever 40, and the other end of the wire harness 72 is operated when the seat back 12 is moved forward by the reclining device 11. It is connected with. When the wire harness 72 is pulled by the operation of the forward tilting mechanism when the seat back 12 is moved forward, the restriction lever 40 releases the restriction opposite to the restriction direction centering on the support shaft 50 against the urging force of the spring member 44. By swinging in the direction, the lever tip 41 retracts to the outer position from the upper edge of the outer peripheral wall 202 of the lower member 20.

規制レバー４０にはレバー先端４１寄りのレバー内縁に、これから屈曲して下方へ舌片状に延出し、先端をロックレバー３０のレバー内縁に当接せしめる延出部４５が設けてある。これにより規制レバー４０は、その規制解除方向への揺動時に、延出部４５の先端がロックレバー３０のレバー内縁に当接し、上記操作ハンドル６０の操作とは別にロックレバー３０を上記ロック解除方向へ作動せしめる。 The regulating lever 40 is provided with an extending portion 45 which is bent from the lever inner edge near the lever tip 41 and extends downward in the form of a tongue piece, and the tip is brought into contact with the lever inner edge of the lock lever 30. As a result, when the regulation lever 40 swings in the regulation release direction, the tip of the extension 45 abuts against the inner edge of the lock lever 30, and the lock lever 30 is unlocked separately from the operation of the operation handle 60. Operate in the direction.

図５ないし図７に示すように、規制レバー４０のレバー先端４１に対応してロア部材２０の外周壁２０２には、所定の位置に外周壁２０２の上縁から上方へ突出する係合突起４６が設けてある。 As shown in FIG. 5 to FIG. 7, the engagement protrusion 46 protrudes upward from the upper edge of the outer peripheral wall 202 at a predetermined position on the outer peripheral wall 202 of the lower member 20 corresponding to the lever tip 41 of the regulating lever 40. Is provided.

シートＳ２の回転操作および作動を説明する。シート前向き状態で操作ハンドル６０（図１）を操作すると、ワイヤハーネス７１（図２）が引かれ、ロックレバー３０がバネ部材３４に抗してロック解除方向へ作動してレバー先端３１が係合部３５から抜けてロック解除される。この状態でシートＳ２を回転させ、シートＳ２がドア開口Ｋ２側へ向かって斜め４５度となる所定の回転位置で、ロア部材２０の外周壁２０２の上方へ突出した規制レバー４０の係止部４１と、外周壁２０２の上縁の係合突起４６とが当接してシートＳ２のこれ以上の回転を規制する。尚、シートＳ２をドア開口Ｋ２側へ向けた状態で、操作ハンドル６０を戻しても（非操作）、ロックレバー３０は付勢力によりロック方向へ戻るがレバー先端３１が外周壁２０２に突き当たってロックされない。 The rotation operation and operation of the sheet S2 will be described. When the operation handle 60 (FIG. 1) is operated with the seat facing forward, the wire harness 71 (FIG. 2) is pulled, and the lock lever 30 is operated in the unlocking direction against the spring member 34 and the lever tip 31 is engaged. It is released from the part 35 and unlocked. In this state, the sheet S2 is rotated, and the locking portion 41 of the regulating lever 40 protruding above the outer peripheral wall 202 of the lower member 20 is rotated at a predetermined rotational position where the sheet S2 is inclined at 45 degrees toward the door opening K2. Then, the engagement protrusion 46 on the upper edge of the outer peripheral wall 202 comes into contact with the outer peripheral wall 202 to restrict further rotation of the sheet S2. Even when the operation handle 60 is returned with the seat S2 facing the door opening K2 (non-operation), the lock lever 30 returns to the locking direction by the urging force, but the lever tip 31 hits the outer peripheral wall 202 and locks. Not.

シートＳ２を前向きまたは後向きに方向転換する場合には、リクライニング装置１１のリクライニングレバー１１０を操作してシートバック１２を前倒しすることで、ワイヤハーネス７２が引かれ、規制レバー４０がバネ部材４４に抗して規制解除方向へ作動してレバー先端４１がロア部材２０の外周壁２０２の上より後退する。このとき、規制レバー４０の延出部４５がロックレバー３０に作用して、規制レバー４０と連動してロックレバー３０のロックが解除される。この状態でシートＳ２を前向きまたは後向きに方向転換する。方向転換後、前向きまたは後向きの位置でシートバック１２を起立姿勢とすることで規制レバー４０およびロックレバー３０が戻ってシート回転がロックされる。 When the seat S2 is turned forward or backward, the reclining lever 110 of the reclining device 11 is operated to tilt the seat back 12 forward, whereby the wire harness 72 is pulled and the regulating lever 40 resists the spring member 44. Then, the lever tip 41 is moved back from above the outer peripheral wall 202 of the lower member 20 by operating in the restriction release direction. At this time, the extending portion 45 of the restriction lever 40 acts on the lock lever 30, and the lock of the lock lever 30 is released in conjunction with the restriction lever 40. In this state, the sheet S2 is turned forward or backward. After the change of direction, when the seat back 12 is set in the standing posture at the forward or backward position, the regulation lever 40 and the lock lever 30 are returned to lock the seat rotation.

本実施形態によれば、シートＳ２にチャイルドシートＣＳを装着しシートバック１２が前倒しできない状態でも、操作ハンドル６０の操作により、ロックレバー３０のロックを解除してシートＳ２を回転させることができる。この場合、シートＳ２は規制レバー４０の作用により、ドア開口Ｋ２側へ向けて斜め４５度の所定の位置で回転が規制される。このようにしてドア開口Ｋ２側へ向けたシートＳ２のチャイルドシートＣＳへ子供を容易に座らせることができる。尚、シートＳ２の回転規制位置は必ずしも斜め４５度の位置でなくともよく、適宜設定変更し得るものである。 According to the present embodiment, even when the child seat CS is mounted on the seat S2 and the seat back 12 cannot be moved forward, the lock lever 30 can be unlocked and the seat S2 can be rotated by operating the operation handle 60. In this case, the rotation of the sheet S2 is restricted at a predetermined position of 45 degrees obliquely toward the door opening K2 by the action of the restriction lever 40. In this way, the child can be easily seated on the child seat CS of the seat S2 facing the door opening K2. It should be noted that the rotation restricting position of the sheet S2 does not necessarily have to be an oblique 45 ° position, and can be appropriately changed.

また、操作ハンドル６０をシートクッション１０の前面のドア開口Ｋ２寄りの側端に設けたので、車外のドア開口Ｋ２側より容易に操作することができる。尚、操作ハンドル６０の設置位置は、シートＳ２前向き時にドア開口Ｋ２側に面するシートクッション１０の側面の前端付近に設けてもよい。 Further, since the operation handle 60 is provided at the side end near the door opening K2 on the front surface of the seat cushion 10, it can be easily operated from the door opening K2 side outside the vehicle. The installation position of the operation handle 60 may be provided in the vicinity of the front end of the side surface of the seat cushion 10 facing the door opening K2 when the seat S2 faces forward.

一方、チャイルドシートＣＳ非装着時には、リクライニング操作によりシートバック１２を前倒しすることで、規制レバー４０およびロックレバー３０が解除され、シートＳ２を前向きまたは後向きに方向転換することができる。この場合、規制レバー４０とロックレバー３０が一連に解除されるので操作性は良好である。 On the other hand, when the child seat CS is not mounted, the restraining lever 40 and the lock lever 30 are released by moving the seat back 12 forward by a reclining operation, and the seat S2 can be turned forward or backward. In this case, since the regulating lever 40 and the lock lever 30 are released in series, the operability is good.

また本実施形態は、子供に限らず、チャイルドシートＣＳ非装着時に、操作ハンドル６０によりシートＳ２をドア開口Ｋ２側へ向けることにより老人や障害者等のシートＳ２への乗降性を向上することができる。 In addition, the present embodiment is not limited to children, and when the child seat CS is not attached, the seat S2 is directed toward the door opening K2 by the operation handle 60, thereby improving the ability to get on and off the seat S2 of the elderly or disabled persons. .

本発明の車両用シートにチャイルドシートを装着したもので、図１（ａ）はシート前向きに状態を示し、図１（ｂ）はシートをドア開口側へ向けた状態を示すシートの概略斜視図である。FIG. 1A shows a state in which a child seat is mounted on the vehicle seat of the present invention, and FIG. 1B is a schematic perspective view of the seat showing a state in which the seat is directed to the door opening side. is there. 上記車両用シートの前向き状態での概略説明図である。It is a schematic explanatory drawing in the forward-facing state of the said vehicle seat. 本発明の規制手段とロック機構を示すもので、図２のIII −III 線に沿う位置での要部縦断面図である。FIG. 3 is a longitudinal sectional view of a main part at a position along a line III-III in FIG. 2, showing a regulating means and a lock mechanism of the present invention. 図２の矢印IV方向に見た上記規制手段とロック機構の概略説明図である。It is a schematic explanatory drawing of the said control means and the lock mechanism seen in the arrow IV direction of FIG. 図２に対応して、シートをドア開口側へ向けた状態の概略作動図である。FIG. 3 is a schematic operation diagram in a state where the seat is directed to the door opening side in correspondence with FIG. 2. 図３に対応して、上記規制手段とロック機構の図５のVI−VI線に沿う位置での要部縦断面図である。FIG. 6 is a longitudinal sectional view of a main part at a position along the line VI-VI in FIG. 5 of the regulating means and the locking mechanism corresponding to FIG. 3. 図４に対応して、図５の矢印VII 方向に見た上記規制手段とロック機構の概略説明図である。FIG. 7 is a schematic explanatory view of the restricting means and the locking mechanism as seen in the direction of arrow VII in FIG. 5 corresponding to FIG. 4. 本発明の車両用シートをセカンドシートとして用いるワゴン車の車室を示す概略説明図である。It is a schematic explanatory drawing which shows the compartment of the wagon vehicle which uses the vehicle seat of this invention as a second seat. ウォークイン作動可能な従来の車両用ベンチシートを備えたワゴン車の車室を示す概略説明図である。It is a schematic explanatory drawing which shows the compartment of the wagon vehicle provided with the conventional vehicle bench seat which can be walk-in operated.

Explanation of symbols

Ｋ１，Ｋ２ドア開口
Ｓ１，Ｓ２車両用シート
１０シートクッション
１１リクライニング装置
１１０リクライニングハンドル
１２シートバック
２回転装置
２０ロア部材
２１アッパ部材
３０ロックレバー（ロック機構）
３５係合部（ロック機構）
４０規制レバー（回転規制手段）
４５延出部
４６規制突起（回転規制手段）
６０操作ハンドル
７１，７２連結手段 K1, K2 Door opening S1, S2 Vehicle seat 10 Seat cushion 11 Reclining device 110 Reclining handle 12 Seat back 2 Rotating device 20 Lower member 21 Upper member 30 Lock lever (lock mechanism)
35 Engagement part (lock mechanism)
40 restricting lever (rotation restricting means)
45 Extension part 46 Restriction protrusion (Rotation restriction means)
60 Operation handle 71, 72 Connecting means

Claims

A single-seat vehicle seat adjacent to the door opening of the passenger compartment,
A seat body composed of a seat cushion and a reclining seat back is placed on a rotating device to be rotatable, and the seat body is locked at least in a forward or rearward direction by a locking mechanism to tilt the seat back. In the vehicle seat that changes the direction of the seat body by releasing the lock mechanism in conjunction with the forward tilt of the seat back by the operation of the reclining handle,
An operation handle that can unlock the lock mechanism when the seat back is upright, and when the seat body is rotated toward the door opening when the seat back is upright by operating the operation handle, A rotation restricting means for restricting the rotation of the seat main body at a predetermined rotation position directed, and the rotation restricting means is configured to release the restriction in conjunction with the forward movement of the seat back. Vehicle seat.

The rotating device includes a lower member provided on the vehicle compartment floor side, and an upper member rotatable with respect to the lower member, and the seat body is placed on the upper member,
The locking mechanism includes an engaging portion provided on one of the lower member and the upper member of the rotating device, and is pivotally supported on the other member so as to be swingable corresponding to the engaging portion. And a lock lever that locks the rotating device by releasably engaging the lock lever, the lock lever and the operation handle are connected by a first connecting means, and the lock lever is operated in the unlocking direction by operating the operation handle. Not to make it work,
As the rotation restricting means, a restricting projection is provided on the one member of the rotating device, and a restricting lever capable of swinging coaxially with the lock lever is provided on the other member corresponding to the restricting projection. When the seat is rotated toward the door opening side, the regulation lever is brought into contact with the regulation projection to regulate the rotation,
The restriction lever is connected to the reclining mechanism of the seat back by the second connecting means, and the restriction lever is operated in the restriction release direction in conjunction with the forward tilt of the seat back, and the lock lever includes the lock lever An extension part extending to the side is provided, and when the restriction lever is operated in the restriction release direction, the extension part is brought into contact with the lock lever to operate the lock lever in the lock release direction. The vehicle seat as described.

3. The vehicle seat according to claim 1, wherein the operation handle is installed at an end portion on a door opening side of the front surface of the seat cushion or a front end of a side surface of the seat cushion facing the door opening side when facing the front of the seat.