JP5217286B2 - Reclining device for vehicle seat - Google Patents

Reclining device for vehicle seat Download PDF

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JP5217286B2
JP5217286B2 JP2007202862A JP2007202862A JP5217286B2 JP 5217286 B2 JP5217286 B2 JP 5217286B2 JP 2007202862 A JP2007202862 A JP 2007202862A JP 2007202862 A JP2007202862 A JP 2007202862A JP 5217286 B2 JP5217286 B2 JP 5217286B2
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slide
slide member
tooth
teeth
members
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JP2009034423A (en
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義之 熊崎
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Toyota Boshoku Corp
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Description

本発明は、シートバックをシートクッションに対して角度調整してロックする車両用シートのリクライニング装置に関する。   The present invention relates to a reclining device for a vehicle seat that locks a seat back by adjusting an angle with respect to a seat cushion.

従来のリクライニング装置は、例えば特許文献１の図１に示すように、シートバック側に設けられかつ円弧部分に歯を有する歯部材と、シートクッション側に設けられかつ一対のガイド部を有するガイド部材と、一対のガイド部に案内されて上下動する二つのスライド部材と、ガイド部材に回動可能に設けられる回動部材を有している。回動部材は、付勢部材の付勢力によってアンロック状態からロック状態に回動することで下側のスライド部材を上方に押す。そして下側のスライド部材が上側のスライド部材を押して、上側のスライド部材に形成された歯が歯部材の歯に噛合う。そして上側と下側のスライド部材には傾斜面が形成されており、傾斜面同士が接触している。そのため下側のスライド部材を上側のスライド部材に押付けると、その力の向きが傾斜面によって変えられて、下側と上側のスライド部材が一対のガイド部の間で突っ張る。かくしてシートバックをシートクッションに対してガタ防止した状態でロックすることができる。
特公平５−６０９２４号公報 For example, as shown in FIG. 1 of Patent Document 1, a conventional reclining device includes a tooth member provided on a seat back side and having teeth on an arc portion, and a guide member provided on a seat cushion side and having a pair of guide portions. And two slide members that move up and down while being guided by the pair of guide portions, and a rotation member that is rotatably provided on the guide member. The turning member pushes the lower slide member upward by rotating from the unlocked state to the locked state by the urging force of the urging member. Then, the lower slide member pushes the upper slide member, and the teeth formed on the upper slide member mesh with the teeth of the tooth member. The upper and lower slide members are formed with inclined surfaces, and the inclined surfaces are in contact with each other. Therefore, when the lower slide member is pressed against the upper slide member, the direction of the force is changed by the inclined surface, and the lower and upper slide members are stretched between the pair of guide portions. Thus, the seat back can be locked in a state in which the seat back is prevented from rattling.
Japanese Patent Publication No. 5-60924

しかし上側のスライド部材が歯部材に噛合う前に、上側と下側のスライド部材が一対のガイド部の間で突っ張ると、上側のスライド部材が歯部材側にスライドし難くなって歯部材に噛合い難くなるなどの問題が生じる。そこで本発明は、シートバックのシートクッションに対するガタ付きをスムーズかつ確実に防止することのできる車両用シートのリクライニング装置を提供することを課題とする。   However, if the upper and lower slide members are stretched between the pair of guide parts before the upper slide member meshes with the tooth member, the upper slide member is difficult to slide to the tooth member side and meshes with the tooth member. Problems such as becoming difficult. Then, this invention makes it a subject to provide the reclining apparatus of the vehicle seat which can prevent the backlash with respect to the seat cushion of a seat back smoothly and reliably.

前記課題を解決するために本発明は、各請求項に記載の通りの構成を備える車両用シートのリクライニング装置であることを特徴とする。請求項１に記載の発明によると、シートバックとシートクッションのいずれか一つの部材側に設けられかつ円弧部分に歯を有する歯部材と、他の部材側に設けられかつ一対のガイド部を有するガイド部材と、一対のガイド部に案内されて移動する第一と第二のスライド部材と、ガイド部材に回動可能に設けられる回動部材を有している。そして回動部材は、アンロック状態からロック方向に回動した際に第一のスライド部材を押して第一のスライド部材の歯を歯部材の歯に噛合わせる第一押部と、第一のスライド部材が歯部材に噛合った状態で第二のスライド部材を第一のスライド部材に押付ける第二押部を有している。そして第一と第二のスライド部材の間には、第二のスライド部材を第一のスライド部材に押付ける力を第一と第二のスライド部材が協働して一対のガイド部の間で突っ張る力に変換する力変換機構が設けられている。   In order to solve the above-mentioned problems, the present invention is a reclining device for a vehicle seat having a configuration as described in each claim. According to the first aspect of the present invention, the tooth member is provided on one of the members of the seat back and the seat cushion and has teeth on the arc portion, and is provided on the other member and has a pair of guide portions. It has a guide member, first and second slide members that move while being guided by a pair of guide portions, and a rotation member that is rotatably provided on the guide member. The rotating member includes a first pressing portion that presses the first slide member and meshes the teeth of the first slide member with the teeth of the tooth member when rotating in the locking direction from the unlocked state, and the first slide A second pressing portion that presses the second slide member against the first slide member in a state where the member meshes with the tooth member. Between the first and second slide members, the first and second slide members cooperate with each other in the force for pressing the second slide member against the first slide member. A force conversion mechanism that converts the force to a tension is provided.

したがってリクライニング装置は、アンロック状態からロック状態になる際に、先ず、第一のスライド部材が歯部材に噛合う。その後、第二のスライド部材が第一のスライド部材を押して第一と第二のスライド部材が一対のガイド部の間で突っ張る。そのため第一のスライド部材をスムーズかつ確実に歯部材に噛合わせることができる。そしてその後に、第一と第二のスライド部材が一対のガイド部の間で突っ張り、シートバックをシートクッションに対してガタ防止した状態でロックする。   Therefore, when the reclining device is changed from the unlocked state to the locked state, first, the first slide member meshes with the tooth member. Thereafter, the second slide member pushes the first slide member, and the first and second slide members are stretched between the pair of guide portions. Therefore, the first slide member can be meshed with the tooth member smoothly and reliably. Thereafter, the first and second slide members are stretched between the pair of guide portions, and the seat back is locked in a state in which the seat cushion is prevented from rattling.

請求項１に記載の発明によると、回動部材は、ロック状態からアンロック方向に回動した際に第二のスライド部材を第一のスライド部材から離れる方向に移動させて一対のガイド部間で突っ張る第一と第二のスライド部材の突っ張り状態を解除する突っ張り解除部と、第一と第二のスライド部材の突っ張り状態を解除した後に第一のスライド部材を移動させて第一のスライド部材の歯を歯部材の歯から噛合い解除する噛合い解除部とを有している。 According to the first aspect of the present invention, the rotating member moves the second slide member in the direction away from the first slide member when rotating in the unlocking direction from the locked state. The first and second slide members are released from the tension release portion, and the first and second slide members are released from the first slide member after the first and second slide members are released from the first slide member. And a mesh release portion for releasing the mesh of the teeth from the teeth of the tooth member.

したがってリクライニング装置は、ロック状態からアンロック状態になる際に、先ず、一対のガイド部間に突っ張った第一と第二のスライド部材の突っ張り状態を解除する。そしてその後に、第一のスライド部材を移動させて歯部材との噛合いを解除する。そのため第一のスライド部材を歯部材からスムーズかつ確実に噛合い解除することができる。   Therefore, when the reclining device changes from the locked state to the unlocked state, first, the first and second slide members that are stretched between the pair of guide portions are released. After that, the first slide member is moved to release the engagement with the tooth member. Therefore, the first slide member can be smoothly and reliably released from the tooth member.

請求項１に記載の発明によると、回動部材の第一押部と噛合い解除部は、第一のスライド部材に形成された突部が突入される長溝の構成壁面によって構成されている。したがって第一押部と噛合い解除部は、どちらも簡易な長溝の構成壁面によって形成され得る。または突部によって形成され得る。 According to the invention described in claim 1, the first pressing portion and the meshing release portion of the turning member is thus configured in the configuration wall surface of the long groove which the first slide member formed projection is rush Yes. Therefore, both the first pressing portion and the mesh release portion can be formed by a simple long groove constituting wall surface. Or it can be formed by protrusions.

実施の形態を図１〜９にしたがって説明する。図１に示すように車両用シート１４は、シートクッション１５とシートバック１６を有している。シートクッション１５のフレーム１５ａとシートバック１６のフレーム１６ａの間には、これらを回動可能に連結するリクライニング装置１が設けられている。リクライニング装置１は、シートバック１６をシートクッション１５に対して角度調整した状態でロックする。   The embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle seat 14 includes a seat cushion 15 and a seat back 16. A reclining device 1 is provided between the frame 15a of the seat cushion 15 and the frame 16a of the seat back 16 so as to be able to rotate them. The reclining device 1 locks the seat back 16 with the angle adjusted with respect to the seat cushion 15.

図２に示すようにリクライニング装置１は、歯部材（ラチェット）２と、ガイド部材３と、ガイド部材３に組付けられる回動部材（カム部材）４、スライド部材７〜９、付勢部材１０を有している。歯部材２は、円盤状であって、外側縁に円環状のリブ２ａを有している。リブ２ａは、円弧部分である内周面に歯（内歯）２ｂを有している。歯部材２の一側面には、複数の凸部２ｃが形成されている。凸部２ｃは、フレーム１５ａ，１６ａの一方に嵌め込まれ、これにより歯部材２がフレーム１５ａ，１６ａの一方に取付けられる。   As shown in FIG. 2, the reclining device 1 includes a tooth member (ratchet) 2, a guide member 3, a rotating member (cam member) 4 assembled to the guide member 3, slide members 7 to 9, and an urging member 10. have. The tooth member 2 has a disk shape and has an annular rib 2a on the outer edge. The rib 2a has teeth (inner teeth) 2b on the inner peripheral surface which is an arc portion. A plurality of convex portions 2 c are formed on one side surface of the tooth member 2. The convex portion 2c is fitted into one of the frames 15a and 16a, whereby the tooth member 2 is attached to one of the frames 15a and 16a.

ガイド部材３は、図２に示すように円盤状であって、一側面に複数の凸部３ｆを有している。凸部３ｆは、フレーム１５ａ，１６ａの一方に嵌め込まれ、これによりガイド部材３がフレーム１５ａ，１６ａの一方に取付けられる。他側面には、図２，３に示すように円環状の回動支持部３ａと、ガイド部３ｃ〜３ｆと、係止部３ｇが形成されている。回動支持部３ａは、ガイド部材３の外側縁に沿って立設されており、内周側に配設された歯部材２を回動可能に支持する。   The guide member 3 has a disk shape as shown in FIG. 2, and has a plurality of convex portions 3f on one side surface. The convex portion 3f is fitted into one of the frames 15a and 16a, whereby the guide member 3 is attached to one of the frames 15a and 16a. As shown in FIGS. 2 and 3, an annular rotation support portion 3a, guide portions 3c to 3f, and a locking portion 3g are formed on the other side surface. The rotation support part 3a is erected along the outer edge of the guide member 3, and supports the tooth member 2 disposed on the inner peripheral side in a rotatable manner.

ガイド部３ｂ，３ｃは、突設されており、図３に示すようにこれらの間に設置されたスライド部材７，８を径方向に移動可能に支持する。ガイド部３ｄ，３ｅは、これらの間に設置されたスライド部材９を径方向に移動可能に支持する。ガイド部３ｂ，３ｅの中間位置と、ガイド部３ｃ，３ｄの中間位置には、係止部３ｇが形成されている。係止部３ｇには、コイルスプリングである付勢部材１０の一端部が固定される。そして付勢部材１０の他端部が回動部材４の掛止部５ｄに掛止される。そして回動部材４が一対の付勢部材１０によって反時計回り（ロック方向）に付勢されている。 The guide portions 3b and 3c are provided so as to support the slide members 7 and 8 installed therebetween so as to be movable in the radial direction, as shown in FIG. The guide portions 3d and 3e support the slide member 9 installed therebetween so as to be movable in the radial direction. A locking portion 3g is formed at an intermediate position between the guide portions 3b and 3e and an intermediate position between the guide portions 3c and 3d. One end of a biasing member 10 that is a coil spring is fixed to the locking portion 3g. Then, the other end portion of the urging member 10 is hooked on the hooking portion 5 d of the rotating member 4. The rotating member 4 is biased by a pair biasing member 10 in the counterclockwise (locking direction).

ガイド部材３の中央には、図２，３に示すように回動部材４が回動可能に取付けられる。回動部材４は、カム部材５とカムプレート６から構成されている。カム部材５は、中央に係止孔５ａを有しており、係止孔５ａに図示省略の操作部材が嵌合される。カム部材５の外周面には、径方向に膨出する一対の膨出部５ｂ，５ｅが形成されている。カム部材５の一側面には、複数の凸部５ｃが形成され、凸部５ｃにカムプレート６が組付けられる。   As shown in FIGS. 2 and 3, a rotation member 4 is rotatably attached to the center of the guide member 3. The rotating member 4 includes a cam member 5 and a cam plate 6. The cam member 5 has a locking hole 5a at the center, and an operation member (not shown) is fitted into the locking hole 5a. On the outer peripheral surface of the cam member 5, a pair of bulging portions 5b and 5e that bulge in the radial direction are formed. A plurality of convex portions 5c are formed on one side surface of the cam member 5, and the cam plate 6 is assembled to the convex portions 5c.

カムプレート６は、図２，３に示すように金属板から形成されており、嵌合穴６ａと長溝６ｂを有している。嵌合穴６ａには、カム部材５の凸部５ｃが嵌合され、これによりカムプレート６がカム部材５に組付けられる。長溝６ｂは、周方向に延出しており、長溝６ｂに第一のスライド部材７の突部７ｃが挿入される。   The cam plate 6 is formed of a metal plate as shown in FIGS. 2 and 3, and has a fitting hole 6a and a long groove 6b. The convex portion 5c of the cam member 5 is fitted into the fitting hole 6a, whereby the cam plate 6 is assembled to the cam member 5. The long groove 6b extends in the circumferential direction, and the protrusion 7c of the first slide member 7 is inserted into the long groove 6b.

長溝６ｂの構成壁面は、図２，３に示すように内周側に第一押部６ｂ１を有し、外周側に噛合い解除部６ｂ２を有している。第一押部６ｂ１は、径方向に傾斜しており、反時計回りに回動することで第一のスライド部材７を除々に径方向外方に押す。これにより第一のスライド部材７は、歯部材２に噛合う。噛合い解除部６ｂ２も、径方向に傾斜しており、時計回りに回動することで第一のスライド部材７を除々に径方向内方に押す。これにより第一のスライド部材７は、歯部材２から噛合い解除される。   As shown in FIGS. 2 and 3, the wall surface of the long groove 6b has a first pressing portion 6b1 on the inner peripheral side and a mesh release portion 6b2 on the outer peripheral side. The first pressing portion 6b1 is inclined in the radial direction, and gradually rotates the first slide member 7 radially outward by rotating counterclockwise. Thereby, the first slide member 7 meshes with the tooth member 2. The mesh release portion 6b2 is also inclined in the radial direction, and gradually rotates the first slide member 7 radially inward by rotating clockwise. As a result, the first slide member 7 is disengaged from the tooth member 2.

カム部材５の膨出部５ｂは、図２，３に示すように第二押部５ｂ１と突っ張り解除部５ｂ２を有している。第二押部５ｂ１は、反時計回りに回動することで第二のスライド部材８を第一のスライド部材７に向けて押す。突っ張り解除部５ｂ２は、時計回りに回動することで第二のスライド部材８の解除爪８ｃに径方向内方の力を与えて、第二のスライド部材８を第一のスライド部材７から離間させる。   The bulging portion 5b of the cam member 5 has a second pressing portion 5b1 and a tension release portion 5b2, as shown in FIGS. The second pusher 5b1 pushes the second slide member 8 toward the first slide member 7 by rotating counterclockwise. The tension release portion 5b2 rotates clockwise to apply a radially inward force to the release claw 8c of the second slide member 8, and separates the second slide member 8 from the first slide member 7. Let

第一のスライド部材７は、図２，３に示すように外側面に歯（外歯）７ａを有している。第一のスライド部材７の径方向内側には、第二のスライド部材８が配設される。そして第二のスライド部材８は、内側面に力受部８ａと解除爪８ｃを有している。力受部８ａは、カム部材５が反時計回りに回動した際に第二押部５ｂ１によって径方向外方に押される。解除爪８ｃは、図４に示すようにカム部材５が時計回りに回動した際に突っ張り解除部５ｂ２によって径方向内方に押される。   As shown in FIGS. 2 and 3, the first slide member 7 has teeth (external teeth) 7 a on the outer surface. A second slide member 8 is disposed on the radially inner side of the first slide member 7. The second slide member 8 has a force receiving portion 8a and a release claw 8c on the inner surface. The force receiving portion 8a is pushed radially outward by the second push portion 5b1 when the cam member 5 rotates counterclockwise. As shown in FIG. 4, the release claw 8c is pushed radially inward by the tension release portion 5b2 when the cam member 5 rotates clockwise.

第一と第二のスライド部材７，８の間には、図３に示すように力変換機構１２が設けられている。力変換機構１２は、第一のスライド部材７の内側面に形成された斜面７ｂと、第二のスライド部材８の外側面に形成された曲部８ｂを有している。斜面７ｂと曲部８ｂは、第二のスライド部材８を第一のスライド部材７に押し当てた径方向の力を周方向（幅方向）の力に変換する構成になっている。したがって第一と第二のスライド部材７、８は、それぞれガイド部３ｃとガイド部３ｂに押付けられる。これによりスライド部材７，８は、一対のガイド部３ｂ，３ｃの間で突っ張る。   A force converting mechanism 12 is provided between the first and second slide members 7 and 8 as shown in FIG. The force conversion mechanism 12 has a slope 7 b formed on the inner surface of the first slide member 7 and a curved portion 8 b formed on the outer surface of the second slide member 8. The slope 7b and the curved portion 8b are configured to convert a radial force obtained by pressing the second slide member 8 against the first slide member 7 into a force in the circumferential direction (width direction). Accordingly, the first and second slide members 7 and 8 are pressed against the guide portion 3c and the guide portion 3b, respectively. Thereby, the slide members 7 and 8 are stretched between the pair of guide portions 3b and 3c.

スライド部材９は、図２，３に示すように外側面に歯（外歯）９ａを有している。スライド部材９の内側面には、力受部９ｂと解除爪９ｃが形成されている。力受部９ｂは、カム部材５が反時計回りに回動した際に膨出部５ｅによって押される。これによりスライド部材９が径方向外方に移動し、歯部材２に噛合う。解除爪９ｃは、カム部材５が時計回りに回動した際に膨出部５ｅによって径方向内方に力を受ける。これによりスライド部材９は、歯部材２から噛合い解除される。   As shown in FIGS. 2 and 3, the slide member 9 has teeth (external teeth) 9a on the outer surface. A force receiving portion 9 b and a release claw 9 c are formed on the inner surface of the slide member 9. The force receiving portion 9b is pushed by the bulging portion 5e when the cam member 5 rotates counterclockwise. As a result, the slide member 9 moves radially outward and meshes with the tooth member 2. The release claw 9c receives a force inward in the radial direction by the bulging portion 5e when the cam member 5 rotates clockwise. As a result, the sliding member 9 is released from the tooth member 2.

図２に示すように歯部材２とガイド部材３は、取付部材１１によって組付けられる。取付部材１１は、円環状であって、外周部がガイド部材３側にかしめられることで、歯部材２をガイド部材３に対して回動可能に保持する。   As shown in FIG. 2, the tooth member 2 and the guide member 3 are assembled by the attachment member 11. The attachment member 11 is annular, and holds the tooth member 2 rotatably with respect to the guide member 3 by caulking the outer peripheral portion toward the guide member 3 side.

図３に示すようにリクライニング装置１は、ロック状態においてカム部材５が付勢部材１０によって反時計回りに付勢される。そしてカム部材５がスライド部材９を径方向外方に押して、スライド部材９が歯部材２に噛合う。カムプレート６もカム部材５を介して反時計回りに付勢される。そしてカムプレート６がスライド部材７を径方向外方に押して、スライド部材７が歯部材２に噛合う。そしてカム部材５がスライド部材８をスライド部材７に押付けることで、スライド部材７，８が力変換機構１２によって一対のガイド部３ｂ，３ｃの間で突っ張った状態になる。   As shown in FIG. 3, in the reclining device 1, the cam member 5 is urged counterclockwise by the urging member 10 in the locked state. The cam member 5 pushes the slide member 9 outward in the radial direction, and the slide member 9 meshes with the tooth member 2. The cam plate 6 is also biased counterclockwise via the cam member 5. The cam plate 6 pushes the slide member 7 outward in the radial direction, and the slide member 7 meshes with the tooth member 2. When the cam member 5 presses the slide member 8 against the slide member 7, the slide members 7 and 8 are stretched between the pair of guide portions 3b and 3c by the force conversion mechanism 12.

リクライニング装置１を図３に示すロック状態から図６に示すアンロック状態にする場合は、先ずカム部材５を図示省略の操作部材によって時計回りに回動させる。これにより図４，５に示すようにカム部材５がスライド部材８を径方向内方に押して、スライド部材８がスライド部材７から離れる。その結果、スライド部材７，８の一対のガイド部３ｂ，３ｃに対する突っ張り状態が解除される。   When the reclining device 1 is changed from the locked state shown in FIG. 3 to the unlocked state shown in FIG. 6, first, the cam member 5 is rotated clockwise by an operation member (not shown). 4 and 5, the cam member 5 pushes the slide member 8 inward in the radial direction, and the slide member 8 is separated from the slide member 7. As a result, the stretched state of the slide members 7 and 8 with respect to the pair of guide portions 3b and 3c is released.

次に、図５，６に示すようにカムプレート６の噛合い解除部６ｂ２が突部７ｃを径方向内方に押す。これによりスライド部材７が歯部材２から離れ、歯部材２との噛合い状態が解除される。図４〜６に示すようにスライド部材９もカム部材５の膨出部５ｅによって径方向内方に押される。これによりスライド部材９が歯部材２から噛合い解除される。その結果、リクライニング装置１がアンロック状態になり、歯部材２がガイド部材３に対して回動可能になる。   Next, as shown in FIGS. 5 and 6, the disengagement portion 6b2 of the cam plate 6 pushes the protrusion 7c inward in the radial direction. As a result, the slide member 7 is separated from the tooth member 2 and the meshing state with the tooth member 2 is released. As shown in FIGS. 4 to 6, the slide member 9 is also pushed radially inward by the bulging portion 5 e of the cam member 5. Thus, the sliding member 9 is released from the tooth member 2. As a result, the reclining device 1 is unlocked, and the tooth member 2 can rotate with respect to the guide member 3.

リクライニング装置１をアンロック状態からロック状態にする場合は、先ず操作部材に加えていた力を解放する。これにより図７に示すようにカム部材５が付勢部材１０によって反時計回りに回転する。そしてカムプレート６の第一押部６ｂ１が突部７ｃを押して、第一のスライド部材７が径方向外方に移動し、第一のスライド部材７が歯部材２に噛合う。この時、スライド部材７の歯７ａは、歯部材２の歯２ｂに対して径方向に隙間を有した状態で噛合っている。そして図８に示すように長溝６ｂには、突部７ｃとの間に回動許容隙間６ｂ３が形成されている。   When the reclining device 1 is changed from the unlocked state to the locked state, the force applied to the operation member is first released. As a result, the cam member 5 is rotated counterclockwise by the biasing member 10 as shown in FIG. Then, the first pressing portion 6b1 of the cam plate 6 presses the projection 7c, the first slide member 7 moves radially outward, and the first slide member 7 meshes with the tooth member 2. At this time, the teeth 7a of the slide member 7 mesh with the teeth 2b of the tooth member 2 with a gap in the radial direction. As shown in FIG. 8, the long groove 6b is provided with a rotation allowance gap 6b3 between the protrusion 7c.

図９に示すようにカム部材５とカムプレート６がさらにロック方向（時計回り）に回動した場合は、第二押部５ｂ１が第二のスライド部材８を押す。これによりスライド部材８の曲部８ｂがスライド部材７の斜面７ｂを押し、スライド部材７、８が一対のガイド部３ｂ，３ｃの間で突っ張る。そして長溝６ｂ内の回動許容隙間６ｂ３が小さくなり、スライド部材７の歯７ａが歯部材２の歯２ｂに対して径方向にほとんど隙間を有しない状態で噛合う。これによりリクライニング装置１がロック状態になり、歯部材２がガイド部材３側に対してガタ防止された状態で回動不能になる。   As shown in FIG. 9, when the cam member 5 and the cam plate 6 are further rotated in the locking direction (clockwise), the second pressing portion 5 b 1 presses the second slide member 8. Thereby, the curved portion 8b of the slide member 8 pushes the inclined surface 7b of the slide member 7, and the slide members 7 and 8 are stretched between the pair of guide portions 3b and 3c. And the rotation permissible gap 6b3 in the long groove 6b becomes small, and the teeth 7a of the slide member 7 mesh with the teeth 2b of the tooth member 2 with almost no gap in the radial direction. As a result, the reclining device 1 is locked, and the tooth member 2 is unable to rotate in a state in which the tooth member 2 is prevented from rattling with respect to the guide member 3 side.

以上のようにして実施の形態が形成されている。すなわち回動部材４は、図３、７に示すようにアンロック状態からロック方向に回動した際に第一のスライド部材７を押して第一のスライド部材７の歯７ａを歯部材２の歯２ｂに噛合わせる第一押部６ｂ１と、第一のスライド部材７が歯部材２に噛合った状態で第二のスライド部材８を第一のスライド部材７に押付ける第二押部５ｂ１を有している。そして第一と第二のスライド部材７，８の間には、第二のスライド部材８を第一のスライド部材７に押付ける力を第一と第二のスライド部材７，８が協働して一対のガイド部３ｂ，３ｃの間で突っ張る力に変換する力変換機構１２が設けられている。   The embodiment is formed as described above. That is, the rotation member 4 pushes the first slide member 7 when the rotation from the unlocked state to the lock direction as shown in FIGS. A first pressing portion 6b1 that meshes with 2b, and a second pressing portion 5b1 that presses the second slide member 8 against the first slide member 7 in a state where the first slide member 7 meshes with the tooth member 2. doing. Between the first and second slide members 7, 8, the first and second slide members 7, 8 cooperate with each other in force for pressing the second slide member 8 against the first slide member 7. Thus, a force conversion mechanism 12 is provided for converting the force into a force that stretches between the pair of guide portions 3b and 3c.

したがってリクライニング装置１は、アンロック状態からロック状態になる際に、先ず、第一のスライド部材７が歯部材２に噛合う。その後、第二のスライド部材８が第一のスライド部材７を押して第一と第二のスライド部材７，８が一対のガイド部３ｂ，３ｃの間で突っ張る。そのため第一のスライド部材７をスムーズかつ確実に歯部材２に噛合わせることができる。そしてその後に、第一と第二のスライド部材７，８が一対のガイド部３ｂ，３ｃの間で突っ張り、シートバック１６をシートクッション１５に対してガタ防止した状態でロックする。   Accordingly, when the reclining device 1 is changed from the unlocked state to the locked state, first, the first slide member 7 is engaged with the tooth member 2. Thereafter, the second slide member 8 pushes the first slide member 7, and the first and second slide members 7, 8 are stretched between the pair of guide portions 3b, 3c. Therefore, the first slide member 7 can be meshed with the tooth member 2 smoothly and reliably. Thereafter, the first and second slide members 7 and 8 are stretched between the pair of guide portions 3b and 3c to lock the seat back 16 against the seat cushion 15 while preventing backlash.

また回動部材４は、図４に示すようにロック状態からアンロック方向に回動した際に第二のスライド部材８を第一のスライド部材７から離れる方向に移動させて一対のガイド部３ｂ，３ｃ間で突っ張る第一と第二のスライド部材７，８の突っ張り状態を解除する突っ張り解除部５ｂ２と、第一と第二のスライド部材７，８の突っ張り状態を解除した後に第一のスライド部材７を移動させて第一のスライド部材７の歯７ａを歯部材２の歯２ｂから噛合い解除する噛合い解除部６ｂ２とを有している。   Further, as shown in FIG. 4, the rotating member 4 moves the second slide member 8 in a direction away from the first slide member 7 when rotating in the unlocking direction from the locked state, so that the pair of guide portions 3 b. , 3c and the first slide member 7 and 8 are released from the tension release portion 5b2, and the first and second slide members 7 and 8 are released from the tension state and the first slide is released. There is a mesh release portion 6b2 that moves the member 7 to release the teeth 7a of the first slide member 7 from the teeth 2b of the tooth member 2.

したがってリクライニング装置１は、ロック状態からアンロック状態になる際に、先ず、一対のガイド部３ｂ，３ｃ間に突っ張った第一と第二のスライド部材７，８の突っ張り状態を解除する。そしてその後に、第一のスライド部材７を移動させて歯部材２との噛合いを解除する。そのため第一のスライド部材７を歯部材２からスムーズかつ確実に噛合い解除することができる。   Accordingly, when the reclining device 1 is changed from the locked state to the unlocked state, first, the first and second slide members 7 and 8 that are stretched between the pair of guide portions 3b and 3c are released from the stretched state. After that, the first slide member 7 is moved to release the engagement with the tooth member 2. Therefore, the first slide member 7 can be smoothly and reliably released from the tooth member 2.

また回動部材４の第一押部６ｂ１と噛合い解除部６ｂ２は、図２に示すように第一のスライド部材７に形成された突部７ｃが突入される長溝６ｂの構成壁面によって構成されている。したがって第一押部６ｂ１と噛合い解除部６ｂ２は、どちらも簡易な長溝６ｂの構成壁面によって形成され得る。長溝６ｂの構成壁面は、回動部材４の回動方向に延出しかつ回動方向に対して第一押部６ｂ１と噛合い解除部６ｂ２が傾斜角度を有し、回動方向に対する第一押部６ｂ１の傾斜角度が噛合い解除部６ｂ２の傾斜角度よりも小さい。

Further, the first pressing portion 6b1 and the meshing release portion 6b2 of the rotating member 4 are constituted by the constituent wall surfaces of the long groove 6b into which the protrusion 7c formed on the first slide member 7 is inserted as shown in FIG. ing. Therefore, both the first pressing portion 6b1 and the engagement release portion 6b2 can be formed by a simple wall surface of the long groove 6b. The wall surface of the long groove 6b extends in the rotating direction of the rotating member 4, and the first pressing portion 6b1 and the mesh release portion 6b2 have an inclination angle with respect to the rotating direction, and the first pressing portion with respect to the rotating direction. The inclination angle of the part 6b1 is smaller than the inclination angle of the mesh release part 6b2.

（他の実施の形態）
本発明は、上記実施の形態に限定されず、以下の形態等であっても良い。
（１）例えば上記実施の形態は、回動部材４がカム部材５とカムプレート６の二部材から構成されていた。しかし回動部材が一部材から形成される形態であっても良い。
（２）上記実施の形態は、歯部材２に噛合うスライド部材７，９を二つ有していた。しかしスライド部材７側のみを有しておりスライド部材９を有していない形態、あるいはスライド部材７とスライド部材９、およびスライド部材９と同様に形成された他の一つ以上のスライド部材を有している形態であっても良い。
（３）上記実施の形態の歯部材２は、円環状のリブ２ａを有しており、リブ２ａの内周面に歯２ｂを有していた。しかし歯部材が扇形の本体、例えば特開平５−６０９２４の図１に記載と同様の扇形の本体を有しており、本体の外周面である円弧面に歯を有している形態であっても良い。
（４）上記実施の形態は、カムプレート６（回動部材４）側に長溝６ｂを有しており、スライド部材７側に突部７ｃを有していた。しかしスライド部材７側に長溝を有しており、カムプレート６（回動部材４）側に突部を有している形態であっても良い。この形態によると突部によって第一押部と噛合い解除部がどちらも形成され得る。
（５）上記実施の形態は、第一押部６ｂ１と噛合い解除部６ｂ２が長溝６ｂの構成壁面の一部によって構成されていた。しかし第一押部と噛合い解除部がカムプレート（回動部材）に別個に形成される形態であっても良い。
（６）上記実施の形態の長溝６ｂは、カムプレート６を厚み方向に貫通する貫通孔であった。しかし長溝がカムプレートに凹設される形態であっても良い。 (Other embodiments)
The present invention is not limited to the above-described embodiment, and may be the following form.
(1) For example, in the above embodiment, the rotating member 4 is composed of two members, that is, the cam member 5 and the cam plate 6. However, the rotation member may be formed from a single member.
(2) The above embodiment has two slide members 7 and 9 that mesh with the tooth member 2. However, it has only the slide member 7 side and does not have the slide member 9, or has the slide member 7, the slide member 9, and one or more other slide members formed in the same manner as the slide member 9. It may be in the form.
(3) The tooth member 2 of the above embodiment has an annular rib 2a, and has teeth 2b on the inner peripheral surface of the rib 2a. However, the tooth member has a fan-shaped main body, for example, a fan-shaped main body similar to that described in FIG. Also good.
(4) In the above embodiment, the long groove 6b is provided on the cam plate 6 (rotating member 4) side, and the protrusion 7c is provided on the slide member 7 side. However, the slide member 7 side may have a long groove and the cam plate 6 (rotating member 4) side may have a protrusion. According to this embodiment, both the first pressing portion and the mesh release portion can be formed by the protrusion.
(5) In the above embodiment, the first pressing portion 6b1 and the mesh release portion 6b2 are configured by a part of the constituent wall surface of the long groove 6b. However, the first pressing portion and the mesh release portion may be formed separately on the cam plate (rotating member).
(6) The long groove 6b of the above embodiment is a through hole that penetrates the cam plate 6 in the thickness direction. However, the long groove may be recessed in the cam plate.

車両用シートの側面図である。It is a side view of a vehicle seat. リクライニング装置の分解斜視図である。It is a disassembled perspective view of a reclining apparatus. ロック状態におけるリクライニング装置の正面断面図である。It is front sectional drawing of the reclining apparatus in a locked state. アンロック状態にする途中のリクライニング装置の正面断面図である。It is front sectional drawing of the reclining apparatus in the middle of making it into an unlocked state. アンロック状態にする途中のリクライニング装置の正面断面図である。It is front sectional drawing of the reclining apparatus in the middle of making it into an unlocked state. アンロック状態におけるリクライニング装置の正面断面図である。It is front sectional drawing of the reclining apparatus in an unlocked state. ロック状態にする途中のリクライニング装置の正面断面図である。It is front sectional drawing of the reclining apparatus in the middle of making it into a locked state. 図７の一部拡大断面図である。It is a partially expanded sectional view of FIG. ロック状態におけるリクライニング装置の一部拡大断面図である。It is a partial expanded sectional view of the reclining apparatus in a locked state.

符号の説明Explanation of symbols

１…リクライニング装置
２…歯部材
３…ガイド部材
３ｂ〜３ｅ…ガイド部
４…回動部材
５…カム部材
５ｂ，５ｅ…膨出部
５ｂ１…第二押部
５ｂ２…突っ張り解除部
６…カムプレート
６ｂ…長溝
６ｂ１…第一押部
６ｂ２…噛合い解除部
７…第一のスライド部材
７ｃ…突部
８…第二のスライド部材
９…スライド部材
１０…付勢部材
１２…力変換機構
１４…車両用シート
１５…シートクッション
１６…シートバック

DESCRIPTION OF SYMBOLS 1 ... Reclining apparatus 2 ... Tooth member 3 ... Guide member 3b-3e ... Guide part 4 ... Turning member 5 ... Cam member 5b, 5e ... Swelling part 5b1 ... Second pushing part 5b2 ... Stretch release part 6 ... Cam plate 6b ... long groove 6b1 ... first pressing part 6b2 ... meshing release part 7 ... first slide member 7c ... projecting part 8 ... second slide member 9 ... slide member 10 ... biasing member 12 ... force converting mechanism 14 ... for vehicle Seat 15 ... Seat cushion 16 ... Seat back

Claims (1)

シートバックをシートクッションに対して角度調整した状態でロックする車両用シートのリクライニング装置であって、
前記シートバックと前記シートクッションのいずれか一つの部材側に設けられかつ円弧部分に歯を有する歯部材と、
前記他の部材側に設けられかつ一対のガイド部を有するガイド部材と、前記一対のガイド部に案内されて移動する第一と第二のスライド部材と、前記ガイド部材に回動可能に設けられる回動部材を有し、
前記回動部材は、アンロック状態からロック方向に回動した際に前記第一のスライド部材を押して前記第一のスライド部材の歯を前記歯部材の歯に噛合わせる第一押部と、前記第一のスライド部材が前記歯部材に噛合った状態で前記第二のスライド部材を前記第一のスライド部材に押付ける第二押部を有し、
前記第一と第二のスライド部材の間には、前記第二のスライド部材を前記第一のスライド部材に押付ける力を前記第一と第二のスライド部材が協働して前記一対のガイド部の間で突っ張る力に変換する力変換機構が設けられており、
前記回動部材は、ロック状態からアンロック方向に回動した際に前記第二のスライド部材を前記第一のスライド部材から離れる方向に移動させて前記一対のガイド部間で突っ張る前記第一と第二のスライド部材の突っ張り状態を解除する突っ張り解除部と、前記第一と第二のスライド部材の突っ張り状態を解除した後に前記第一のスライド部材を移動させて前記第一のスライド部材の歯を前記歯部材の歯から噛合い解除する噛合い解除部とを有し、
前記回動部材の前記第一押部と前記噛合い解除部は、前記第一のスライド部材に形成された突部が突入される長溝の構成壁面によって構成され、
前記長溝の構成壁面は、前記回動部材の回動方向に延出しかつ前記回動方向に対して前記第一押部と前記噛合い解除部が傾斜角度を有し、前記回動方向に対する前記第一押部の傾斜角度が前記噛合い解除部の傾斜角度よりも小さい構成であることを特徴とする車両用シートのリクライニング装置。 A reclining device for a vehicle seat that locks the seat back in a state of adjusting the angle with respect to the seat cushion,
A tooth member provided on one of the members of the seat back and the seat cushion and having teeth on the arc portion;
A guide member provided on the other member side and having a pair of guide portions, first and second slide members that are guided and moved by the pair of guide portions, and rotatably provided on the guide member. A rotating member,
The rotating member has a first pressing portion that presses the first slide member and meshes the teeth of the first slide member with the teeth of the tooth member when rotating in the locking direction from the unlocked state; A second pressing portion that presses the second slide member against the first slide member in a state where the first slide member meshes with the tooth member;
Between the first and second slide members, the first and second slide members cooperate to force the second slide member against the first slide member. There is a force conversion mechanism that converts the force to stretch between the parts ,
The rotating member moves the second slide member in a direction away from the first slide member when it rotates in the unlocking direction from the locked state, and extends between the pair of guide portions. A tension release portion for releasing the tension state of the second slide member; and a tooth of the first slide member by moving the first slide member after releasing the tension state of the first and second slide members A mesh release portion for releasing the mesh from the teeth of the tooth member,
The first pressing portion and the mesh release portion of the rotating member are configured by a configuration wall surface of a long groove into which a protrusion formed on the first slide member is inserted,
The wall surface of the long groove extends in the rotation direction of the rotation member, and the first pressing portion and the mesh release portion have an inclination angle with respect to the rotation direction, and A reclining device for a vehicle seat, characterized in that an inclination angle of the first pressing portion is smaller than an inclination angle of the mesh release portion .
JP2007202862A 2007-08-03 2007-08-03 Reclining device for vehicle seat Expired - Fee Related JP5217286B2 (en)

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KR101725409B1 (en) * 2015-12-15 2017-04-12 현대다이모스(주) Recliner of seat for vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541950A1 (en) * 1983-03-01 1984-09-07 Tubauto Articulation for the backrest of a seat for various vehicles
JP3596010B2 (en) * 1993-10-26 2004-12-02 アイシン精機株式会社 Reclining device
JP2001025415A (en) * 1999-07-14 2001-01-30 Delta Kogyo Co Ltd Recliner structure of seat
JP3762314B2 (en) * 2002-03-05 2006-04-05 シロキ工業株式会社 Reclining mechanism
FR2841838B1 (en) * 2002-07-05 2005-03-18 Faurecia Sieges Automobile VEHICLE SEAT EQUIPPED WITH A JOINT MECHANISM
JP4135141B2 (en) * 2002-11-27 2008-08-20 テイ・エス テック株式会社 Reclining device with fixed point return function and vehicle seat equipped with the reclining device
DE102004035599B3 (en) * 2004-07-22 2006-01-05 Keiper Gmbh & Co.Kg Fitting for a vehicle seat

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