JPH09149832A - Locking part structure of internal tooth type seat reclining device - Google Patents
Locking part structure of internal tooth type seat reclining deviceInfo
- Publication number
- JPH09149832A JPH09149832A JP7312206A JP31220695A JPH09149832A JP H09149832 A JPH09149832 A JP H09149832A JP 7312206 A JP7312206 A JP 7312206A JP 31220695 A JP31220695 A JP 31220695A JP H09149832 A JPH09149832 A JP H09149832A
- Authority
- JP
- Japan
- Prior art keywords
- tooth
- center shaft
- base plate
- reclining device
- type seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
(57)【要約】
【課題】 内歯式シートリクライニング装置のロック部
の強度を向上する。
【解決手段】 ベースプレート１のセンターシャフト２
に回動可能に軸支したツースプレート３に、センターシ
ャフト２を中心とする所定半径の凹部６を形成し、凹部
６の内周面に歯部７を形成し、歯部７に係脱する歯部１
０を有するツース部材１１をベースプレート１にガイド
部１２，１３を介して径方向へ移動可能に係合し、か
つ、ツース部材１１を移動させるカム部材１９をセンタ
ーシャフト２に軸支し、カム部材１９を操作レバー２３
にて回動可能に配置した内歯式シートリクライニング装
置において、ガイド部に１３に当接するツース部材１１
の側部１４に、１又は複数の凹部１１ａを形成するとと
もに、ツース部材１１は凹部６の歯部７と同じ高さの歯
部１０を有するとともに、その歯部１０に隣接して突出
する所定高さの張出部１０ａを有する構成とした。
(57) 【Abstract】 PROBLEM TO BE SOLVED: To improve the strength of a lock portion of an internal tooth type seat reclining device. SOLUTION: A center shaft 2 of a base plate 1 is provided.
A tooth plate 3 rotatably supported on the tooth plate 3 is formed with a recess 6 having a predetermined radius around the center shaft 2. A tooth portion 7 is formed on the inner peripheral surface of the recess 6 and is engaged with and disengaged from the tooth portion 7. Tooth 1
A tooth member 11 having 0 is engaged with the base plate 1 via the guide portions 12 and 13 so as to be movable in the radial direction, and a cam member 19 for moving the tooth member 11 is axially supported by the center shaft 2 and 19 to control lever 23
In the internal tooth type seat reclining device that is rotatably arranged at the tooth member 11 that comes into contact with the guide portion 13
One or a plurality of recesses 11a are formed on the side portion 14 of the tooth member 11, and the tooth member 11 has a tooth portion 10 having the same height as the tooth portion 7 of the recess portion 6, and a predetermined portion protruding adjacent to the tooth portion 10. It is configured to have a protruding portion 10a of height.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は自動車等の座席装
置における内歯式シートリクライニング装置のロック部
構造に関し、ロック部の強度を向上することを目的とし
てツース部材を改良したものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock portion structure of an internal tooth type seat reclining device in a seat device of an automobile or the like, and an improved tooth member for the purpose of improving the strength of the lock portion.
【０００２】[0002]
【従来の技術】内歯式シートリクライニング装置は、図
７に示すように、シートバックに固定するアーム５７に
センターシャフト５８を中心とするセクター５９，６０
を形成し、その内周面に係止歯部４４，４５を設ける一
方、シートクッションに固定するベースプレート４６に
案内部４７，４８を形成し、その案内部４７，４８をそ
れぞれ摺動するロックプレート４９，４９をベースプレ
ート４６に設け、そのロックプレート４９，４９にピン
５０，５０を突設してそのピン５０，５０が係合するカ
ム孔５１，５１を有するコントロールプレート５２を操
作レバー５３で回動することにより、ロックプレート４
９，４９が半径方向へ移動してその係止歯部５４，５５
が係止歯部４４，４５と噛合又は噛合解除できるように
し、かつ、コントロールプレート５２にはロックプレー
ト４９に当接する押圧片５６を固定した構造である（実
公昭５３−１５５２９号公報参照）。2. Description of the Related Art As shown in FIG. 7, an internal tooth type seat reclining device has an arm 57 fixed to a seat back and sectors 59, 60 centered on a center shaft 58.
And the locking teeth portions 44 and 45 are provided on the inner peripheral surface thereof, while the guide portions 47 and 48 are formed on the base plate 46 fixed to the seat cushion, and the lock plates that slide the guide portions 47 and 48, respectively. 49, 49 are provided on the base plate 46, pins 50, 50 are projected on the lock plates 49, 49, and a control plate 52 having cam holes 51, 51 with which the pins 50, 50 engage is rotated by an operating lever 53. By moving, the lock plate 4
9 and 49 are moved in the radial direction so that the locking tooth portions 54 and 55
Has a structure in which the engaging tooth portions 44, 45 can be engaged with or disengaged from each other, and a pressing piece 56 abutting against the lock plate 49 is fixed to the control plate 52 (see Japanese Utility Model Publication No. 53-15529).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記内
歯式シートリクライニング装置によれば、シートバック
に荷重がかかれば、ロックプレート４９は押圧片５６と
の接点を支点として回転しようとする。そのため、ロッ
クプレート４９を案内する案内部４７，４８の当接面の
外周側部分に荷重が集中して作用することにより、案内
部４７，４８の当接面の外周側部分が荷重により圧壊
し、ロックプレート４９が回転して係止歯部４４，５４
の噛み合いがずれることにより、強度低下につながると
いう惧れがあった。However, according to the above-mentioned internal tooth type seat reclining device, when a load is applied to the seat back, the lock plate 49 tries to rotate with the contact point with the pressing piece 56 as a fulcrum. Therefore, the load concentrates on the outer peripheral side portions of the contact surfaces of the guide portions 47 and 48 that guide the lock plate 49, and the outer peripheral side portions of the contact surfaces of the guide portions 47 and 48 are crushed by the load. , The lock plate 49 rotates and the locking tooth portions 44, 54
There was a fear that the strength would be reduced due to the disengagement of the meshes.
【０００４】そこで、この発明は上記事情に鑑みて、内
歯式シートリクライニング装置におけるロック部の強度
を向上することを目的とする。In view of the above circumstances, an object of the present invention is to improve the strength of the lock portion in the internal tooth type seat reclining device.
【０００５】[0005]
【課題を解決するための手段】この発明にかかる内歯式
シートリクライニング装置のロック部構造は、ベースプ
レートのセンターシャフトに回動可能に軸支したツース
プレートに、センターシャフトを中心とする所定半径の
扇形状の凹部を形成し、該凹部の円弧部内周面に歯部を
形成し、該歯部に係脱する歯部を有するツース部材を前
記ベースプレートに形成したガイド部を介して径方向へ
移動可能に係合し、かつ、該ツース部材を移動させるカ
ム部材をセンターシャフトに軸支し、該カム部材を操作
レバーにて回動可能に配置した内歯式シートリクライニ
ング装置の前記側壁部に当接する前記ツース部材の側部
に、１又は複数の凹部を形成したことを特徴とする。A lock portion structure of an internal tooth type seat reclining device according to the present invention has a tooth plate rotatably supported by a center shaft of a base plate and a predetermined radius centered on the center shaft. A tooth-shaped concave portion is formed, a tooth portion is formed on the inner peripheral surface of the circular arc portion of the concave portion, and a tooth member having a tooth portion that engages and disengages with the tooth portion is moved in the radial direction through a guide portion formed on the base plate. A cam member that engages as much as possible and that moves the tooth member is pivotally supported on a center shaft, and the cam member is abutted against the side wall portion of the internal tooth type seat reclining device that is rotatably arranged by an operating lever. One or a plurality of recesses are formed on the side portion of the tooth member in contact with each other.
【０００６】また、ベースプレートのセンターシャフト
に回動可能に軸支したツースプレートに、センターシャ
フトを中心とする所定半径の扇形状の凹部を形成し、該
凹部の円弧部内周面に歯部を形成し、該歯部に係脱する
歯部を有するツース部材を前記ベースプレートに形成し
たガイド部を介して径方向へ移動可能に係合し、かつ、
該ツース部材を移動させるカム部材をセンターシャフト
に軸支し、該カム部材を操作レバーにて回動可能に配置
した内歯式シートリクライニング装置の前記ツース部材
は、前記凹部の歯部と同じ高さの歯部を有するととも
に、該歯部に隣接して突出する所定高さの張出部を有す
ることを特徴とする。Further, a fan-shaped recess having a predetermined radius centered on the center shaft is formed in the tooth plate rotatably supported by the center shaft of the base plate, and teeth are formed on the inner peripheral surface of the arc of the recess. A tooth member having a tooth portion that engages and disengages with the tooth portion is movably engaged via a guide portion formed on the base plate, and
The tooth member of the internal tooth type seat reclining device in which the cam member for moving the tooth member is pivotally supported on the center shaft, and the cam member is rotatably arranged by the operation lever, has the same height as the tooth portion of the recess. It is characterized in that it has a tooth portion of a height and an overhanging portion of a predetermined height protruding adjacent to the tooth portion.
【０００７】上記構成において、操作レバーを上方へ回
動操作すれば、カム部材が回動してツース部材とツース
プレートの歯部の噛合を解除してリクライニング調節が
でき、シートバック即ちツースプレートの所望の傾斜角
度を設定した後、操作レバーを放すと、カム部材が逆方
向へ回動し、よってツース部材がガイド部を介して径方
向へ移動することにより、ツース部材とツースプレート
の歯部が噛合して設定した傾斜角度をロックする。In the above structure, when the operating lever is rotated upward, the cam member is rotated to release the meshing of the tooth portions of the tooth member and the tooth plate, and the reclining adjustment can be performed. When the operating lever is released after setting the desired inclination angle, the cam member rotates in the opposite direction, and the tooth member moves in the radial direction via the guide portion, so that the tooth member of the tooth member and the tooth plate are toothed. Locks the set tilt angle by meshing with.
【０００８】ロック後、シートバックに負荷が生じてツ
ース部材とツースプレートの歯部の噛合を介し、ツース
部材がベースプレートのガイド部に押し付けられると、
側壁部の肉がツース部材の凹部内に塑性変形して入り込
み、ツース部材の移動を阻止するとともに、歯部に隣接
して突出する張出部の側面がガイド部の側壁部に当接
し、歯の並び方向の入力に抗する耐力を向上させる。After locking, when a load is generated on the seat back and the tooth member is pressed against the guide portion of the base plate through the meshing between the tooth member and the tooth portion of the tooth plate,
The meat of the side wall part is plastically deformed and enters the concave part of the tooth member to prevent the tooth member from moving, and the side surface of the protruding part adjacent to the tooth part contacts the side wall part of the guide part, and Improves the proof stress against the input in the direction of arrangement.
【０００９】[0009]
【発明の実施の形態】以下この発明の実施例を図に基づ
き説明する。図１〜３に示すように、車体に固定するベ
ースプレート１にセンターシャフト２を介してツースプ
レート３が回動可能に軸着されている。ツースプレート
３には連結用孔４を介してアーム又はシートフレーム５
が連結され、アーム又はシートフレーム５はシートバッ
ク（図示略）の側面に固定される。ベースプレート１に
はセンターシャフト２を中心とする所定半径の円弧部１
ａが上部側に形成されるとともに、操作レバー２３が回
動可能に嵌合する凹部１ｂが形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a tooth plate 3 is rotatably attached to a base plate 1 fixed to a vehicle body via a center shaft 2. An arm or a seat frame 5 is provided in the tooth plate 3 through a connecting hole 4.
And the arm or seat frame 5 is fixed to the side surface of a seat back (not shown). The base plate 1 has an arc portion 1 centered on the center shaft 2 and having a predetermined radius.
A is formed on the upper side, and a recess 1b into which the operation lever 23 is rotatably fitted is formed.
【００１０】ツースプレート３の内面側には、センター
シャフト２を中心として所定半径の凹部６がエンボス加
工等にて形成され、その凹部６の円弧状内周壁には歯部
７が常道にて形成されている。ツースプレート３の上端
部には連結用孔４に挿通されるピン８で連結される押え
部材９がツースプレート３に固定され、その押え部材９
がベースプレート１の周縁部に摺接してツースプレート
３側へ剥離しないように押圧している。On the inner surface side of the tooth plate 3, a concave portion 6 having a predetermined radius centering on the center shaft 2 is formed by embossing or the like, and a tooth portion 7 is formed on the arc-shaped inner peripheral wall of the concave portion 6 in a normal way. Have been. At the upper end of the tooth plate 3, a pressing member 9 connected by a pin 8 inserted into the connecting hole 4 is fixed to the tooth plate 3, and the pressing member 9 is attached.
Touches the peripheral edge of the base plate 1 and presses it toward the tooth plate 3 side so as not to separate.
【００１１】すなわち、押え部材９は円弧部１ａに摺接
する円弧段部９ａを形成した板状体である。ピン８は連
結用孔４とアーム又はシートフレーム５の連結用孔５ａ
及び押え部材９の連結用孔９ｂを貫通してこれらを共締
めする。なお、押え部材９は図５に示すように、ピン８
ａの頭部を拡開してフランジ部８ｂを形成し、そのピン
８ａを連結用孔４，５ａに挿通してそのフランジ部８ｂ
がベースプレート１の周縁部に摺接するようにしたもの
でもよい。That is, the pressing member 9 is a plate-like member having an arcuate stepped portion 9a slidably contacting the arcuate portion 1a. The pin 8 is a connecting hole 4 and a connecting hole 5a of the arm or seat frame 5
And it penetrates the connection hole 9b of the pressing member 9 and fastens them together. In addition, as shown in FIG.
The head portion of a is widened to form a flange portion 8b, and the pin 8a is inserted into the connecting holes 4 and 5a to form the flange portion 8b.
May be in sliding contact with the peripheral edge of the base plate 1.
【００１２】ベースプレート１とツースプレート３との
間において、ベースプレート１の片面を摺動可能にツー
ス部材１１が収納され、かつ、ベースプレート１にこの
ツース部材１１を挟んで径方向へ摺動案内をするガイド
部１２，１３が凹部として形成されている。ツース部材
１１はガイド部１２，１３と平行な側部１４，１４とこ
れに交叉する方向へ斜めに突設されたアーム部１５を有
する。ガイド部１２，１３は、互いに平行する側壁部１
８，１８を形成し、ツース部材１１が前記側壁部１８，
１８により、周方向においては当接支持され、径方向に
は摺動可能に収納されている。A tooth member 11 is housed between the base plate 1 and the tooth plate 3 so as to be slidable on one side of the base plate 1, and the base plate 1 is sandwiched between the tooth members 11 to guide the sliding movement in the radial direction. The guide portions 12 and 13 are formed as concave portions. The tooth member 11 has side portions 14 and 14 parallel to the guide portions 12 and 13 and an arm portion 15 that is obliquely provided in a direction intersecting with the side portions 14 and 14. The guide portions 12 and 13 are side wall portions 1 parallel to each other.
8 and 18, the tooth member 11 has the side wall portion 18,
It is supported by 18 in the circumferential direction and is slidably accommodated in the radial direction.
【００１３】ツース部材１１は、図３，４に示すよう
に、歯部７と略同じ歯幅を有する歯部１０を上端縁に形
成するとともに、その歯部１０に隣接して突出する所定
高さの張出部１０ａを上端縁に有する。すなわち、張出
部１０ａの肉厚はガイド部１２，１３で形成する凹部の
深さに相当する寸法を有する。したがって、ガイド部１
２，１３で形成する凹部は、歯部７の凹部６より径方向
外側まで大きく形成されており、側部１４とともに張出
部１０ａの側部がガイド部１３の側壁部１８に摺接す
る。また、ツース部材１１の側部１４には１又は複数の
凹部１１ａが形成されている。凹部はコ字形又はＶ字形
又は半円形の切欠部からなり、その大きさ及び数はロッ
ク強度に応じて設定される。As shown in FIGS. 3 and 4, the tooth member 11 has a tooth portion 10 having a tooth width substantially the same as that of the tooth portion 7 formed on the upper end edge thereof, and a predetermined height protruding adjacent to the tooth portion 10. It has an overhanging portion 10a at the upper edge. That is, the thickness of the overhanging portion 10 a has a dimension corresponding to the depth of the recess formed by the guide portions 12 and 13. Therefore, the guide unit 1
The recesses formed by 2 and 13 are formed to be larger than the recesses 6 of the tooth portion 7 in the radial direction, and the side portions of the overhanging portion 10 a together with the side portions 14 are in sliding contact with the side wall portions 18 of the guide portion 13. Further, one or a plurality of recesses 11 a are formed on the side portion 14 of the tooth member 11. The concave portion is a U-shaped, V-shaped or semi-circular cutout portion, and the size and the number thereof are set according to the lock strength.
【００１４】ツース部材１１を摺動させるカム部材１９
が、ベースプレート１とツースプレート３に挟まれてセ
ンターシャフト２を中心として回動可能に収納されてい
る。このカム部材１９は前記ツース部材１１の歯部１０
に対抗する側に当接する頭部２０と、回動して前記アー
ム部１５と当接することによりツース部材１１をロック
の解除方向へ摺動させるためのアーム部２１を有する。A cam member 19 for sliding the tooth member 11
However, it is sandwiched between the base plate 1 and the tooth plate 3 and is rotatably housed around the center shaft 2. The cam member 19 is a tooth portion 10 of the tooth member 11.
It has a head portion 20 that abuts on the side opposite to and a arm portion 21 that slides the tooth member 11 in the unlocking direction by rotating and abutting the arm portion 15.
【００１５】センターシャフト２はつば部２２を有して
ツースプレート３から挿通し、カム部材１９、操作レバ
ー２３及びベースプレート１を貫通し、ベースプレート
１と異形断面部２４で係合して回動不能に挿通し、か
つ、その外部をかしめてベースプレート１に固定してい
る。The center shaft 2 has a collar portion 22 and is inserted through the tooth plate 3, penetrates the cam member 19, the operating lever 23 and the base plate 1 and engages with the base plate 1 at the deformed cross-section portion 24 so that it cannot rotate. And is fixed to the base plate 1 by caulking the outside.
【００１６】センターシャフト２の他端部側には渦巻き
ばね２７の内端部が係止され、渦巻きばね２７の外端部
は前記ツースプレート３に突設して外側へ突出するピン
２８に係止してある。したがって、ツースプレート３は
常に前倒れ方向へ回転付勢されている。The inner end of the spiral spring 27 is engaged with the other end of the center shaft 2, and the outer end of the spiral spring 27 is engaged with a pin 28 protruding from the tooth plate 3 and protruding outward. It has stopped. Therefore, the tooth plate 3 is always urged to rotate forward.
【００１７】操作レバー２３はセンターシャフト２の付
近でエンボス部３３を形成し、このエンボス部３３を嵌
着する孔３４を前記カム部材１９に形成して嵌め合わせ
てあり、したがって操作レバー２３とカム部材１９は一
体で回転可能である。The operating lever 23 has an embossed portion 33 formed in the vicinity of the center shaft 2, and a hole 34 into which the embossed portion 33 is fitted is formed in the cam member 19 and fitted together. The member 19 can rotate integrally.
【００１８】操作レバー２３の自由端部にはノブ３５が
装着される。また、操作レバー２３にはリターンばね３
６の一端部が係止され、リターンばね３６の他端部はベ
ースプレート１に突設したピン３７とに係止される。A knob 35 is mounted on the free end of the operation lever 23. The operation lever 23 has a return spring 3
One end of 6 is locked, and the other end of the return spring 36 is locked to a pin 37 protruding from the base plate 1.
【００１９】次に上記実施例の作用を説明すると、操作
レバー２３をリターンばね３６の力に抗してセンターシ
ャフト２を中心として時計方向へ回動すると、図６に示
すように、カム部材１９が共に時計方向へ回転し、その
頭部２０がツース部材１１の側から外れるとともに、ア
ーム部２１がアーム部１５に当接してツース部材１１を
センターシャフト２の方向へ摺動させて歯部の噛合を解
除する。The operation of the above embodiment will now be described. When the operating lever 23 is rotated clockwise about the center shaft 2 against the force of the return spring 36, the cam member 19 as shown in FIG. Rotate in the clockwise direction together, the head 20 thereof is disengaged from the tooth member 11 side, and the arm portion 21 abuts the arm portion 15 to slide the tooth member 11 toward the center shaft 2 and Release the mesh.
【００２０】したがって、ツースプレート３は渦巻きば
ね２７の力で前倒れ方向へ回動する（仮想線図示３
ａ）。そこで、シートバックを後方側へ押してその傾斜
角度を定め、操作レバー２３を放すと、リターンばね３
５の力で操作レバー２３が元の位置に復帰するととも
に、カム部材１９が反時計方向へ回動してそのアーム部
２１がツース部材１１のアーム部１５から離れ、かつ、
カム部材１９の頭部２０がツース部材１１の下側に当接
し、これにより歯部１０，７が噛合して図２に示すロッ
ク状態となる。Therefore, the tooth plate 3 is rotated in the forward tilt direction by the force of the spiral spring 27 (shown in phantom line 3).
a). Therefore, when the seat back is pushed rearward to determine its inclination angle and the operation lever 23 is released, the return spring 3
The operation lever 23 returns to the original position by the force of 5, and the cam member 19 rotates counterclockwise so that the arm portion 21 thereof is separated from the arm portion 15 of the tooth member 11, and
The head portion 20 of the cam member 19 abuts on the lower side of the tooth member 11, whereby the tooth portions 10 and 7 mesh with each other and the locked state shown in FIG. 2 is obtained.
【００２１】このロック状態において、アーム５に負荷
が生じて歯部７を介してツース部材１１がガイド部１３
側へ押し付けられた場合に、歯部１０よりも外周側へ突
出する張出部１０ａの側面（側部１４）がガイド部１３
の側壁部１８に当接するために、荷重が最大となる側面
１４の外周側部分の受け面を大きくすることができ、し
かも、歯部１０よりも外周側へ受け面を設けることがで
きるため、歯部１０，３の並び方向の入力に十分対抗で
きる耐力を形成することができる。したがって、歯部１
０側部における側壁部１８の変形量を減少させることが
でき、これにより歯部７，１０の噛み合い量の減少を防
止してロック強度の維持安定ができる。In this locked state, a load is generated on the arm 5 so that the tooth member 11 is guided by the tooth portion 7 via the tooth portion 7.
When pressed to the side, the side surface (side portion 14) of the overhanging portion 10a that protrudes to the outer peripheral side of the tooth portion 10 is the guide portion 13.
Since it abuts against the side wall portion 18 of the, the receiving surface of the outer peripheral side portion of the side surface 14 where the load is maximum can be increased, and further, the receiving surface can be provided on the outer peripheral side of the tooth portion 10. It is possible to form a proof strength that can sufficiently oppose the input in the arrangement direction of the tooth portions 10 and 3. Therefore, the tooth portion 1
The amount of deformation of the side wall portion 18 on the 0 side portion can be reduced, whereby the reduction of the meshing amount of the tooth portions 7 and 10 can be prevented, and the lock strength can be maintained and stabilized.
【００２２】さらに、このとき凹部１１ａを有する側部
１４が側壁部１８に強く押し付けられることにより、側
壁部１８が塑性変形してその肉が凹部１１ａ内に入り込
み、その流入する肉によりツース部材１１がセンターシ
ャフト２に向けて移動しようとする力を阻止する。した
がって、歯部１０．７が噛み合ったまま平行移動して噛
み合い量の減少を防止し、ロック強度の維持安定ができ
る。Further, at this time, the side portion 14 having the concave portion 11a is strongly pressed against the side wall portion 18, so that the side wall portion 18 is plastically deformed and the meat thereof enters the concave portion 11a. Prevent the force of moving toward the center shaft 2. Therefore, it is possible to prevent the tooth portion 10.7 from moving in parallel while meshing with each other and to reduce the amount of meshing, thereby maintaining and stabilizing the lock strength.
【００２３】[0023]
【発明の効果】以上説明したこの発明によれば、ツース
部材がガイド部の側壁部に押し付けられた場合に、側壁
部の肉が塑性変形して入り込み、ツース部材の移動を阻
止する凹部をツース部材の側壁部に設けたので、ロック
部の強度が安定するとともに、凹部がグリース溜まりと
なってツース部材の摩滅を防止し、ツース部材の耐久性
が向上する。According to the present invention described above, when the tooth member is pressed against the side wall portion of the guide portion, the flesh of the side wall portion is plastically deformed and enters, and the tooth portion is provided with a recess for preventing movement of the tooth member. Since it is provided on the side wall portion of the member, the strength of the lock portion is stabilized, and the concave portion serves as a grease reservoir to prevent abrasion of the tooth member and improve the durability of the tooth member.
【００２４】また、ツース部材の歯部をツースプレート
の歯部と必要な噛合高さに止め、かつ、その歯部に隣接
して突出する張出部を形成することにより、張出部を形
成しない場合に比べれば張出部の側面とガイド部の側壁
部との接触面積が増加し、よってロック部のロック強度
が向上する。Further, the protruding portion is formed by stopping the tooth portion of the tooth member at the required meshing height with the tooth portion of the tooth plate and forming the protruding portion adjacent to the tooth portion. The contact area between the side surface of the overhanging portion and the side wall portion of the guide portion is increased as compared with the case where it is not, so that the lock strength of the lock portion is improved.
【図１】この発明の実施例を示す分解斜視図FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
【図２】図１の組立正面図2 is an assembled front view of FIG.
【図３】図２の断面側面図FIG. 3 is a sectional side view of FIG.
【図４】ツース部材の斜視図FIG. 4 is a perspective view of a tooth member.
【図５】一部変更例を示す断面図FIG. 5 is a sectional view showing a partially modified example.
【図６】作用説明図FIG. 6 is an explanatory diagram of an operation.
【図７】従来例の正面図FIG. 7 is a front view of a conventional example.
１…ベースプレート ２…センターシャフト ３…ツースプレート ５…アーム（シートフレーム） ６…凹部 ７，１０…歯部 １０ａ…張出部 １１…ツース部材 １１ａ…凹部 １２，１３…ガイド部 １５，２１…アーム部 １６…凸部 １７…凹部 １８…側壁部 １９…カム部材 ２３…操作レバー DESCRIPTION OF SYMBOLS 1 ... Base plate 2 ... Center shaft 3 ... Tooth plate 5 ... Arm (seat frame) 6 ... Recessed part 7, 10 ... Tooth part 10a ... Overhang part 11 ... Tooth member 11a ... Recessed part 12, 13 ... Guide part 15, 21 ... Arm Part 16 ... Convex part 17 ... Recessed part 18 ... Side wall part 19 ... Cam member 23 ... Operation lever
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年１２月８日[Submission date] December 8, 1995
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】[0005]
【課題を解決するための手段】この発明にかかる内歯式
シートリクライニング装置のロック部構造は、ベースプ
レートのセンターシャフトに回動可能に軸支したツース
プレートに、センターシャフトを中心とする所定半径の
扇形状の凹部を形成し、該凹部の円弧部内周面に歯部を
形成し、該歯部に係脱する歯部を有するツース部材を前
記ベースプレートに形成したガイド部を介して径方向へ
移動可能に係合し、かつ、該ツース部材を移動させるカ
ム部材をセンターシャフトに軸支し、該カム部材を操作
レバーにて回動可能に配置した内歯式シートリクライニ
ング装置の前記ガイド部の側壁部に当接する前記ツース
部材の側部に、１又は複数の凹部を形成したことを特徴
とする。A lock portion structure of an internal tooth type seat reclining device according to the present invention has a tooth plate rotatably supported by a center shaft of a base plate and a predetermined radius centered on the center shaft. A tooth-shaped concave portion is formed, a tooth portion is formed on the inner peripheral surface of the circular arc portion of the concave portion, and a tooth member having a tooth portion that engages and disengages with the tooth portion is moved in the radial direction through a guide portion formed on the base plate. A side wall of the guide portion of the internal tooth type seat reclining device in which a cam member that is engagably engaged and that moves the tooth member is pivotally supported on a center shaft, and the cam member is rotatably arranged by an operation lever. One or a plurality of recesses are formed on the side portion of the tooth member that comes into contact with the portion.
Claims (2)
動可能に軸支したツースプレートに、センターシャフト
を中心とする所定半径の扇形状の凹部を形成し、該凹部
の円弧部内周面に歯部を形成し、該歯部に係脱する歯部
を有するツース部材を前記ベースプレートに形成したガ
イド部を介して径方向へ移動可能に係合し、かつ、該ツ
ース部材を移動させるカム部材をセンターシャフトに軸
支し、該カム部材を操作レバーにて回動可能に配置した
内歯式シートリクライニング装置の前記側壁部に当接す
るツース部材の側部に、１又は複数の凹部を形成したこ
とを特徴とする内歯式シートリクライニング装置のロッ
ク部構造。1. A tooth plate rotatably supported by a center shaft of a base plate is provided with a fan-shaped recess having a predetermined radius centered on the center shaft, and teeth are formed on an inner peripheral surface of an arc of the recess. Then, a tooth member having a tooth portion that engages and disengages with the tooth portion is movably engaged in a radial direction via a guide portion formed on the base plate, and a cam member that moves the tooth member is attached to the center shaft. One or a plurality of recesses are formed on a side portion of the tooth member that is axially supported and is in contact with the side wall portion of the internal tooth type seat reclining device in which the cam member is rotatably arranged by an operation lever. Lock structure of internal tooth type seat reclining device.
動可能に軸支したツースプレートに、センターシャフト
を中心とする所定半径の扇形状の凹部を形成し、該凹部
の円弧部内周面に歯部を形成し、該歯部に係脱する歯部
を有するツース部材を前記ベースプレートに形成したガ
イド部を介して径方向へ移動可能に係合し、かつ、該ツ
ース部材を移動させるカム部材をセンターシャフトに軸
支し、該カム部材を操作レバーにて回動可能に配置した
内歯式シートリクライニング装置の前記ツース部材は、
前記凹部の歯部と同じ高さの歯部を有するとともに、該
歯部に隣接して突出する所定高さの張出部を有すること
を特徴とする内歯式シートリクライニング装置のロック
部構造。2. A tooth plate rotatably supported by a center shaft of a base plate is provided with a fan-shaped recess having a predetermined radius centered on the center shaft, and teeth are formed on an inner peripheral surface of an arc of the recess. Then, a tooth member having a tooth portion that engages and disengages with the tooth portion is movably engaged in a radial direction via a guide portion formed on the base plate, and a cam member that moves the tooth member is attached to the center shaft. The tooth member of the internal tooth type seat reclining device in which the cam member is pivotally supported and is rotatably arranged by an operation lever,
A lock part structure of an internal tooth type seat reclining device, which has a tooth part having the same height as the tooth part of the recess, and has an overhang part of a predetermined height protruding adjacent to the tooth part.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312206A JPH09149832A (en) | 1995-11-30 | 1995-11-30 | Locking part structure of internal tooth type seat reclining device |
| DE69630475T DE69630475T2 (en) | 1995-06-23 | 1996-06-24 | Adjustable swivel fitting for reclining seats |
| US08/668,810 US5813724A (en) | 1995-06-23 | 1996-06-24 | Adjustable hinge mount for reclinable seat |
| EP00122628A EP1068986B1 (en) | 1995-06-23 | 1996-06-24 | Adjustable hinge mount for reclinable seat |
| DE69633309T DE69633309T2 (en) | 1995-06-23 | 1996-06-24 | Adjustable swivel fitting for reclining seats |
| KR1019960023201A KR100197921B1 (en) | 1995-06-23 | 1996-06-24 | Adjustable hinge mount for inclined seat |
| EP96110177A EP0749865B1 (en) | 1995-06-23 | 1996-06-24 | Adjustable hinge mount for reclinable seat |
| EP00122629A EP1068987B1 (en) | 1995-06-23 | 1996-06-24 | Adjustable hinge mount for reclinable seat |
| DE69617107T DE69617107T2 (en) | 1995-06-23 | 1996-06-24 | Adjustable swivel fitting for reclining seats |
| US08/964,400 US6014806A (en) | 1995-06-23 | 1997-11-04 | Adjustable hinge mount for reclinable seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7312206A JPH09149832A (en) | 1995-11-30 | 1995-11-30 | Locking part structure of internal tooth type seat reclining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09149832A true JPH09149832A (en) | 1997-06-10 |
Family
ID=18026486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7312206A Pending JPH09149832A (en) | 1995-06-23 | 1995-11-30 | Locking part structure of internal tooth type seat reclining device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09149832A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006158806A (en) * | 2004-12-10 | 2006-06-22 | Aisin Seiki Co Ltd | Vehicle seat reclining device |
| JP2007236664A (en) * | 2006-03-09 | 2007-09-20 | Shiroki Corp | Reclining device |
| JP2008514321A (en) * | 2004-10-01 | 2008-05-08 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Adjustment device and vehicle seat |
| JP2008178532A (en) * | 2007-01-24 | 2008-08-07 | Aisin Seiki Co Ltd | Vehicle seat reclining device |
-
1995
- 1995-11-30 JP JP7312206A patent/JPH09149832A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008514321A (en) * | 2004-10-01 | 2008-05-08 | ジョンソン・コントロールズ・ゲー・エム・ベー・ハー | Adjustment device and vehicle seat |
| JP2006158806A (en) * | 2004-12-10 | 2006-06-22 | Aisin Seiki Co Ltd | Vehicle seat reclining device |
| JP2007236664A (en) * | 2006-03-09 | 2007-09-20 | Shiroki Corp | Reclining device |
| JP2008178532A (en) * | 2007-01-24 | 2008-08-07 | Aisin Seiki Co Ltd | Vehicle seat reclining device |
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