JPH0540757Y2 - - Google Patents
Info
- Publication number
- JPH0540757Y2 JPH0540757Y2 JP1989143065U JP14306589U JPH0540757Y2 JP H0540757 Y2 JPH0540757 Y2 JP H0540757Y2 JP 1989143065 U JP1989143065 U JP 1989143065U JP 14306589 U JP14306589 U JP 14306589U JP H0540757 Y2 JPH0540757 Y2 JP H0540757Y2
- Authority
- JP
- Japan
- Prior art keywords
- lock
- lock pin
- plate
- seat
- pin
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001125929 Trisopterus luscus Species 0.000 description 1
- 230000013228 contact guidance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は主に自動車のリアシート等の車両用シ
ートの回動可能なシートバツクを所定の起立角度
にロツク保持するシートバツクのロツク装置に関
し、特にシートバツクのロツク保持をロツクプレ
ートとロツクピンとを用いて行う方式のシートバ
ツクのロツク装置に関する。[Detailed description of the invention] [Industrial application field] The present invention mainly relates to a seat back locking device for locking a rotatable seat back of a vehicle seat such as a rear seat of an automobile at a predetermined upright angle. The present invention relates to a seat bag locking device that uses a lock plate and a lock pin to hold the seat back.
一般に自動車の後部座席に設けるリアシートは
ベンチシートタイプが多い。この種のシートは着
座使用可能にシートバツク（背凭れ）をやや後傾
状態に起立回動してロツク保持したり、後部荷物
室を拡げるなどの目的でロツクを解除してシート
バツクを前倒しできるように、シートバツクのロ
ツク装置が設けられている。
Generally, the rear seats provided in the back seats of automobiles are often of the bench seat type. This type of seat can be used while sitting, by tilting the seatback slightly backwards and turning it to keep it locked, or by releasing the lock and folding the seatback forward for purposes such as expanding the rear luggage room. , a seat bag locking device is provided.
この従来のシートバツクのロツク装置を簡単に
説明する。シートクツシヨンの左右後部とシート
バツクの左右下部とからそれぞれヒンジアームを
突設する。この左右それぞれ両者のヒンジアーム
相互をヒンジピンにより回動可能に枢着して、シ
ートバツクをシートクツシヨンに対し起立・転倒
回動に取り付けている。ここで前記クツシヨン側
ヒンジアームに板カムの如く周縁に係合凹部を有
したロツクプレートを固定する。一方バツク側ヒ
ンジアームにロツクピンを有したロツクピンホル
ダーを回動可能に枢着すると共に、このロツクプ
レートをばねによりロツクピンがロツクプレート
に係合する方向に常時回動付勢した構成である。 This conventional seat bag locking device will be briefly explained. Hinge arms are provided to protrude from the left and right rear portions of the seat cushion and from the left and right lower portions of the seat back. The left and right hinge arms are rotatably connected to each other by hinge pins, and the seat bag is attached to the seat cushion for standing and falling rotation. Here, a lock plate having an engaging recess on the periphery like a plate cam is fixed to the cushion side hinge arm. On the other hand, a lock pin holder having a lock pin is pivotally attached to the back side hinge arm, and the lock plate is always urged to rotate in the direction in which the lock pin engages with the lock plate by a spring.
そして、シートバツクを後方に起立回動する
と、このバツク側ヒンジアームのロツクピンホル
ダーに支持されたロツクピンがばねの付勢でロツ
クプレートの周縁に摺接しなが移動して、このロ
ツクピンがロツクプレートの係合凹部に落ち込む
ように係合する。これでシートバツクがやや後傾
した所定の起立角度にロツク保持され、乗員が着
座できるようになる。またその状態でロツク解除
操作ノブを引いてロツクピンホルダーをばねに抗
し回動させると、ロツクピンがロツクプレートの
係合凹部から離脱してロツク解除状態となる。こ
れでシートバツクを前に倒せるようになる。 When the seat back is stood up and rotated rearward, the lock pin supported by the lock pin holder of the back side hinge arm moves while sliding against the periphery of the lock plate under the bias of the spring. It engages by falling into the engagement recess. This locks the seat back at a predetermined rising angle, tilting slightly backwards, allowing the occupant to sit. In this state, when the lock release operation knob is pulled and the lock pin holder is rotated against the spring, the lock pin is disengaged from the engagement recess of the lock plate, and the lock is released. This will allow you to fold the seat back forward.
ところで、前述のシートバツクのロツク装置で
は、ロツクピンをロツクピンホルダーを介し常時
ばねでロツクプレート側に回動付勢しているの
で、シートバツクの起立・転倒を繰り返すこと、
ロツクピンがロツクプレートに摺動して摩耗が生
じ、ロツク時のガタ・異音の発生や、更にはロツ
クピンの剪断破壊などの不具合を招く問題があつ
た。
By the way, in the above-mentioned seat bag locking device, the lock pin is constantly biased to rotate toward the lock plate by a spring through the lock pin holder, so the seat bag may repeatedly stand up and fall down.
The locking pin slides against the locking plate and wears out, causing problems such as rattling and noise when locking, and further problems such as shear breakage of the locking pin.
本考案は前記事情に鑑みなされ、シートバツク
の起立・転倒を繰り返しても、ロツクピンの摩耗
を防止できて、ロツク時のガタ・異音の発生や、
ロツクピンの剪断破壊などの不具合の発生を解消
できるシートバツクのロツク装置を提供すること
を目的とする。 The present invention was developed in view of the above circumstances, and even if the seat bag is repeatedly raised and fallen down, it can prevent the locking pin from being worn out, thereby preventing rattling and abnormal noises when the seatback is locked.
An object of the present invention is to provide a seat back locking device capable of eliminating problems such as shear breakage of locking pins.
本考案のシートバツクのロツク装置は、前記目
的を達成するために、ロツクピンをロツクプレー
トに係合する方向に常時回動付勢したロツクピン
ホルダーに摺動部を設けると共に、この摺動部が
シートバツクの回動過程で摺接するガイドをロツ
クプレート側に設け、このガイドに摺動部が摺接
案内されることにより前記ロツクピンホルダーが
反ロツクプレート方に回動してロツクピンとロツ
クプレートとの間にクリアランスを生じせしめる
構成としたことを特徴とする。
In order to achieve the above-mentioned object, the seat bag locking device of the present invention is provided with a sliding part in the lock pin holder which is always biased to rotate in the direction of engaging the lock pin with the lock plate, and this sliding part is attached to the seat bag. A guide is provided on the lock plate side that comes into sliding contact during the rotation process, and as the sliding part is guided in sliding contact with this guide, the lock pin holder is rotated in the direction opposite to the lock plate, and the lock pin holder is moved between the lock pin and the lock plate. It is characterized by having a configuration that creates a clearance.
前記構成のシートバツクのロツク装置において
は、シートバツクを起立回動すると、その回動過
程ではロツクピンホルダーの摺動部がロツクプレ
ート側のガイドに摺接案内され、これで前記ロツ
クピンホルダーが反ロツクプレート方に回動して
ロツクピンとロツクプレートとの間にクリアラン
スを生じせしめる。このクリアランスを保つたま
まロツクピンが移動し、シートバツクが所定の起
立角度まで回動する直前で前記摺動部とガイドと
の摺接案内が解消される。これでロツクピンホル
ダーがばねの付勢でロツクプレート方に回動し、
シートバツクが所定の起立角度に回動すると、ロ
ツクピンがロツクプレートの係合凹部に係合して
ロツク状態となる。またそのロツクピンをロツク
プレートの係合凹部から離脱させてロツクを解除
し、この状態でシートバツクを前に回動して倒す
と、その回動過程で再び前記ロツクピンホルダー
の摺動部がロツクプレート側のガイドに摺接案内
され、これでロツクピンホルダーが反ロツクプレ
ート方に回動してロツクピンとロツクプレートと
の間にクリアランスを生じせしめるようになる。
これにてシートバツクの起立・転倒を繰り返して
も、ロツクピンがロツクプレートに摺動する機会
が少なく、それだけロツクピンの摩耗を防止でき
て、ロツク時のガタ・異音の発生や、ロツクピン
の剪断破壊などの不具合の発生を解消できるよう
になる。
In the seat bag locking device having the above configuration, when the seat bag is raised and rotated, the sliding portion of the lock pin holder is guided in sliding contact with the guide on the lock plate side during the rotation process, and the lock pin holder is thereby moved into the anti-lock position. It rotates toward the plate to create a clearance between the lock pin and the lock plate. The lock pin moves while maintaining this clearance, and the sliding contact between the sliding portion and the guide is released just before the seat back rotates to a predetermined upright angle. The lock pin holder will now rotate toward the lock plate under the bias of the spring.
When the seat back is rotated to a predetermined upright angle, the lock pin engages with the engagement recess of the lock plate, resulting in a locked state. Also, when the lock pin is released from the engagement recess of the lock plate to release the lock, and in this state the seat bag is rotated forward and tilted down, the sliding part of the lock pin holder will again engage the lock plate during the rotation process. The lock pin holder is slidably guided by the side guide, and the lock pin holder rotates toward the opposite side of the lock plate to create a clearance between the lock pin and the lock plate.
As a result, even if the seat bag is repeatedly stood up and fallen down, there is little chance that the lock pin will slide against the lock plate, which will prevent the lock pin from wearing out, causing backlash and noise when locking, and shearing damage to the lock pin. It will be possible to eliminate the occurrence of problems.
以下本考案の一実施例を図面に従い説明する。
まず第５図に示す如くベンチシートタイプの車両
用シート１のシートクツシヨン２に対するシート
バツク３の左右ヒンジ部に本考案のシートバツク
ロツク装置が設けられている。
An embodiment of the present invention will be described below with reference to the drawings.
First, as shown in FIG. 5, the seat back locking device of the present invention is provided at the left and right hinge portions of the seat back 3 relative to the seat cushion 2 of a bench seat type vehicle seat 1.
つまり、シートクツシヨン２の左右後部とシー
トバツク３の左右下部とからそれぞれヒンジアー
ム５，６を突設している。この左右それぞれ両者
のヒンジアーム５，６は第１図乃至第４図に示す
如く鋼板製のもので、そのクツシヨン側ヒンジア
ーム５は略Ｌ字板状のもので、シートクツシヨン
２の両側後部から上方に突出する状態に固定され
る。バツク側ヒンジアーム６は裾が広がつた箆状
のもので、シートバツク３の両側部から下方に突
出する状態に固定される。このクツシヨン側ヒン
ジアーム５の略後半部の内側にバツク側ヒンジア
ーム６の略下半部を重複する状態に配し、その両
者重複部の中央上方寄り部にヒンジピン７を貫通
してカシメて回動可能に枢着している。 That is, hinge arms 5 and 6 are provided projecting from the left and right rear portions of the seat cushion 2 and the left and right lower portions of the seat bag 3, respectively. The left and right hinge arms 5 and 6 are made of steel plate as shown in FIGS. It is fixed in such a way that it protrudes upward from the top. The back side hinge arm 6 is shaped like a pout with a widened hem, and is fixed to protrude downward from both sides of the seat back 3. The substantially lower half of the back side hinge arm 6 is arranged in an overlapping manner inside the substantially rear half of the cushion side hinge arm 5, and a hinge pin 7 is passed through the center upper part of the overlapped part and crimped and rotated. It is pivoted so that it can move.
ここで、前記クツシヨン側ヒンジプレート５の
上部内側に順に重合してガイド８とロツクプレー
ト９を前記ヒンジピン７と複数本のカシメピン１
０により固定している。 Here, the guide 8 and the lock plate 9 are superimposed on the inside of the upper part of the cushion side hinge plate 5 in order, and the hinge pin 7 and the plurality of caulking pins 1 are attached.
It is fixed at 0.
そのロツクプレート９は下側に前記ヒンジピン
７を中心とする円弧状の周縁部９ａを有し、且つ
その下側周縁部９ａの前端寄りの互いに前後小間
隔を存した箇所に逆Ｕ字形状の係合凹部９ｂ，９
ｃを有している。 The lock plate 9 has an arcuate peripheral edge 9a centered on the hinge pin 7 on the lower side, and an inverted U-shaped portion located near the front end of the lower peripheral edge 9a with a small distance between the front and back. Engagement recesses 9b, 9
It has c.
また前後バツク側ヒンジプレート５とロツクプ
レート９との間に挟まれたガイド８は比較的薄い
一枚の鋼板をプレス成形したもので、この下側略
後半部のみに（ロツクプレート９の係合凹部９
ｂ，９ｃが存在しない位置）に突出部８ａを有し
ている。この突出部８ａはロツクプレート９の下
側周縁部９ａより少し上方に退入した短いもの
で、この突出部８ａ下縁が該ロツクプレート９の
下側周縁部９ａに略沿う円弧状とされている。 Further, the guide 8 sandwiched between the front and rear back side hinge plates 5 and the lock plate 9 is press-formed from a relatively thin steel plate. Recess 9
The protruding portion 8a is located at a position where b and 9c are not present. This protruding portion 8a is short and recessed slightly above the lower peripheral edge 9a of the lock plate 9, and the lower edge of the protruding portion 8a is shaped like an arc approximately along the lower peripheral edge 9a of the lock plate 9. There is.
一方、前記バツク側ヒンジプレート６の下端寄
り部中央にホルダーピン１１を外側に突出する状
態に貫通して溶接固定し、これにロツクピンホル
ダー１２を回動可能に枢着している。 On the other hand, a holder pin 11 is welded and fixed to the center of the lower end of the back side hinge plate 6 so as to protrude outward, and a lock pin holder 12 is rotatably pivoted thereto.
なおそのホルダーピン１１は前記バツク側ヒン
ジプレート６の下端に溶接等により固着して外側
に突設したＬ字板状の補強ブラケツト１３の立上
り板部に嵌合して両端支持の状態で固定してい
る。 The holder pin 11 is fixed to the lower end of the back side hinge plate 6 by welding or the like, and is fitted into the rising plate part of an L-shaped plate-shaped reinforcing bracket 13 that projects outward, and is fixed in a state where both ends are supported. ing.
前記ロツクピンホルダー１２は途中で屈曲した
前後に長尺な帯板で、略中間部を前記ホルダーピ
ン１１に嵌合してシーソーの如く回動自在として
いる。このロツクピンホルダー１２の前端部には
前記バツク側ヒンジプレート６の下部前端寄りの
円弧状長穴１５を介してフランジ１４ａ付きロツ
クピン１４を嵌着している。このロツクピン１４
は前記ロツクプレート９の係合凹部９ｂ，９ｃ内
に選択的に係合してバツク側ヒンジアーム６の回
動をロツク（規制）する作用をなすものである。 The lock pin holder 12 is a longitudinally elongated strip bent in the middle, and its approximately middle portion is fitted into the holder pin 11 so that it can freely rotate like a seesaw. A lock pin 14 with a flange 14a is fitted into the front end of the lock pin holder 12 through an arcuate elongated hole 15 near the lower front end of the back side hinge plate 6. This lock pin 14
selectively engages in the engagement recesses 9b and 9c of the lock plate 9 to lock (restrict) the rotation of the back side hinge arm 6.
このロツクピン１４の内側突出部にはコイルば
ね１６の下端を掛止している。このコイルばね１
６は上端を前記バツク側ヒンジアーム６の内面に
溶接固定したばね受け１７に掛止し、該ロツクピ
ン１４をロツクピンホルダー１２を介しロツクプ
レート９に係合する方向に常時回動付勢する。 The lower end of the coil spring 16 is hooked to the inner protrusion of the lock pin 14. This coil spring 1
The upper end of the lock pin 6 is hooked to a spring receiver 17 welded to the inner surface of the back side hinge arm 6, and the lock pin 14 is constantly urged to rotate in the direction of engagement with the lock plate 9 via the lock pin holder 12.
また前記ロツクピンホルダー１２の前端部には
前記ロツクピン１４より上側位置に摺動部である
前後一対の摺動ピン１６，１７を外側に向け突出
する状態に嵌着している。これら摺動ピン１６，
１７はシートバツク３の回動過程で前記ガイド８
の突出部８ａ下縁に摺接案内され、ロツクピンホ
ルダー１２をばね１６に抗し反ロツクプレート方
に回動し、ロツクピン１４とロツクプレート９下
側周縁部９ａとの間にクリアランスＫを生じせし
める作用をなすものである。 Further, a pair of front and rear sliding pins 16 and 17, which are sliding parts, are fitted into the front end of the lock pin holder 12 at a position above the lock pin 14 so as to project outward. These sliding pins 16,
Reference numeral 17 indicates the guide 8 during the rotation process of the seat bag 3.
The lock pin holder 12 is rotated in the direction opposite to the lock plate against the spring 16, and a clearance K is created between the lock pin 14 and the lower peripheral edge 9a of the lock plate 9. It acts as a coercive action.
また更に前記ロツクピンホルダー１２の後端部
には操作ピン２０を取付けている。この操作ピン
２０はバツク側ヒンジアーム６の下部後端寄りの
円弧状長穴２１を介して内側に突出している。こ
の操作ピン２０の内端側にロツク解除用操作ノブ
２２のロツド２２ａ下端部を回動可能に連結して
いる。このロツク解除用操作ノブ２２はバツク側
ヒンジアーム６の内側を介してシートバツク３内
より上端に突出して、引つ張り操作可能となつて
いる。 Furthermore, an operating pin 20 is attached to the rear end of the lock pin holder 12. This operating pin 20 projects inward through an arcuate elongated hole 21 near the lower rear end of the back side hinge arm 6. The lower end of the rod 22a of the lock release operation knob 22 is rotatably connected to the inner end of the operation pin 20. This unlocking operation knob 22 protrudes from the inside of the seat bag 3 to the upper end via the inside of the back side hinge arm 6, and can be operated by pulling.
而して、前記構成のシートバツクのロツク装置
の作用を述べる。まずシートバツク３が第５図ａ
に示す如く後傾した所定の起立角度Ａに回動され
ている時は、第１図および第６図に示す如く、ロ
ツクピン１４がロツクプレート９の前段の係合凹
部９ｂ内にばね１６の付勢で係合してロツク状態
を保つている。 The operation of the seat bag locking device constructed as described above will now be described. First, seat bag 3 is shown in Figure 5a.
When the lock pin 14 is rotated to a predetermined rearward standing angle A as shown in FIG. 1 and FIG. It engages with force and maintains a locked state.
またその状態から操作ノブ２２を上方に引つ張
つてロツクピンホルダー１２をばね１６に抗して
回動し、これでロツクピン１４をロツクプレート
と９の前段の係合凹部９ｂより下方に離脱させて
ロツク解除し、このままシートバツク３を少し前
方に回動すれば、該ロツクピン１４が第７図に示
す如くロツクプレート９の後段の係合凹部９ｃ内
にばね１６の付勢で係合し、シートバツク３を第
５図ｂに示す少し後傾した所定の起立角度Ｂの位
置にロツク保持する。 From this state, the operating knob 22 is pulled upward to rotate the lock pin holder 12 against the spring 16, thereby causing the lock pin 14 to disengage downward from the engagement recess 9b in the front stage of the lock plate 9. When the seat bag 3 is rotated slightly forward, the lock pin 14 is engaged with the engagement recess 9c at the rear stage of the lock plate 9 under the force of the spring 16, as shown in FIG. 3 is locked and held at a predetermined standing angle B slightly tilted backwards as shown in FIG. 5b.
そのシートバツク３の起立角度Ａ，Ｂのロツク
位置は着座者の好みで適宜自由に選択可能であ
る。なおその起立角度Ａ，Ｂいずれのロツク位置
でも、前後摺動ピン１８，１９はガイド８の突出
部８ａより前側に位置してどこにも接触しない。
これでロツクピン１４の係合凹部９ｂ，９ｃへの
係合の邪魔にならない。 The locking positions of the upright angles A and B of the seat back 3 can be freely selected as desired by the seated person. In addition, in both the locking positions at the upright angles A and B, the front and rear sliding pins 18 and 19 are located in front of the protrusion 8a of the guide 8 and do not come into contact with anything.
This does not interfere with the engagement of the lock pin 14 with the engagement recesses 9b, 9c.
次に、車両の後部荷物室を広げたり、或いは荷
物の搬入・搬出したりするなどのために、シート
バツク３を第５図ｃに示すＣの位置に前倒しする
場合は、前述同様に操作ノブ２２を一度上方に引
つ張つてロツクピンホルダー１２をばね１６に抗
して回動し、これでロツクピン１４をロツクプレ
ート９の係合凹部９ｃより下方に離脱させてロツ
ク解除し、そのままシートバツク３を前方に大き
く回動（転倒）する。これで第９図の状態にバツ
ク側ヒンジアーム６が回動し、シートバツク６が
前記第５図ｃに示す前倒し状態となる。 Next, when the seatback 3 is moved forward to position C shown in FIG. Once pulled upward, the lock pin holder 12 is rotated against the spring 16, and the lock pin 14 is released downward from the engagement recess 9c of the lock plate 9 to release the lock. Turns significantly forward (falls over). The back side hinge arm 6 is now rotated to the state shown in FIG. 9, and the seat back 6 is brought to the forward position shown in FIG. 5c.
また再びシートバツク６を起立回動すると、前
記同様にロツクピン１４がロツクプレート９の後
段の係合凹部９ｃ内にばね１６の付勢で自動的に
係合し、シートバツク３を第５図ｂに示す所定の
起立角度Ｂの位置にロツク保持する。 When the seat back 6 is raised and rotated again, the lock pin 14 is automatically engaged in the engagement recess 9c at the rear of the lock plate 9 under the force of the spring 16, as described above, and the seat back 3 is moved as shown in FIG. 5b. It is locked and held at a predetermined standing angle B.
ここで、前述したシートバツク３の起立・転倒
の回動過程で（第８図に示す如く前記起立角度Ｂ
を少し過ぎた位置から前倒し位置Ｃまでの間の区
間）Ｄでは、ロツクピンホルダー１２の摺動部で
ある摺動ピン１８，１９がガイド８の突出部８ａ
の下縁に摺接案内される。これで前記ロツクピン
ホルダー１２が反ロツクプレート方に回動してロ
ツクピン１４とロツクプレート９との間にクリア
ランスＫを生じせしめる。このクリアランスＫを
保つたままロツクピン１４が移動するので、シー
トバツク６の起立・転倒を繰り返しても、ロツク
ピン１４がロツクプレート９に摺動する機会が少
なく、それだけロツクピン１４の摩耗が少なくな
つて、ロツク時のガタ・異音の発生や、ロツクピ
ン１４の剪断破壊などの不具合が解消できるよう
になる。 Here, in the turning process of standing up and falling down of the seat bag 3 mentioned above (as shown in FIG. 8, the rising angle B
In the section (d) from a position slightly past the forward position C to the forward tilted position C, the sliding pins 18 and 19, which are the sliding parts of the lock pin holder 12, touch the protruding part 8a of the guide 8.
It is guided in sliding contact with the lower edge of. This causes the lock pin holder 12 to rotate toward the opposite side of the lock plate, creating a clearance K between the lock pin 14 and the lock plate 9. Since the lock pin 14 moves while maintaining this clearance K, even if the seat bag 6 is repeatedly stood up and fallen down, there is little chance that the lock pin 14 will slide on the lock plate 9, and the wear on the lock pin 14 will be reduced accordingly. This makes it possible to eliminate problems such as rattling and abnormal noises, and shear failure of the lock pin 14.
なお前記摺動ピン１８，１９はシートバツクが
所定の起立角度Ｂに起立回動する直前で前記ガイ
ド８の突出部８ａがなくなるので、その摺接案内
が解消され、これでロツクピンホルダー１２がば
ね１６の付勢でロツクプレート方に回動できて、
ロツクピン１３がロツクプレート９の係合凹部９
ｃ内に自動的に係合してロツク状態となれる。 Note that the sliding pins 18 and 19 lose the protrusion 8a of the guide 8 just before the seat bag rises and rotates to the predetermined rising angle B, so the sliding contact guidance is eliminated, and the lock pin holder 12 is held in place by the spring. It can be rotated towards the lock plate with the bias of 16,
The lock pin 13 is connected to the engagement recess 9 of the lock plate 9.
It can be automatically engaged in the lock state.
なお、前記ロツクピン１４はフランジ１４ａ付
きのものを用いたことで、ロツクピンホルダー１
２を２重構造としなくとも、シートバツク６のロ
ツク状態での着座者の荷重によるねじれで該ロツ
クピン１４が抜け外れるようなことがなくなる。 In addition, by using the lock pin 14 with a flange 14a, the lock pin holder 1
Even if the seat bag 2 does not have a double structure, the lock pin 14 will not come off due to twisting due to the load of the seated person when the seat back 6 is in the locked state.
本考案のシートバツクのロツク装置は、前述の
如く構成したので、シートバツクの起立・転倒を
繰り返しても、その起立・転倒の回動過程では、
ガイドと摺動部との摺接案内により、ロツクピン
をロツクプレーとからクリアランスを持つて離し
ておけるので、そのロツクピンの摩耗を防止で
き、ロツク時のガタ・異音の発生や、ロツクピン
の剪断破壊などの不具合の発生を解消できる効果
が得られる。
Since the seat bag locking device of the present invention is constructed as described above, even if the seat bag is repeatedly raised and fallen, during the turning process of standing up and falling down,
The sliding contact between the guide and the sliding part allows the lock pin to be separated from the lock plate with some clearance, which prevents wear on the lock pin and prevents rattling and noise when locking, as well as shear breakage of the lock pin. The effect of eliminating the occurrence of problems can be obtained.
図面は本考案の一実施例を示すもので、第１図
はロツク装置の起立ロツク状態の内側面図、第２
図は第１図の−線に沿う部分断面図、第３図
は第１図の−線に沿う部分断面図、第４図は
ロツク装置の分解斜視図、第５図ａ，ｂ，ｃはシ
ートバツクのそれぞれ作動状態の側面図、第６図
乃至第９図はロツク装置のそれぞれ一部省略した
作動状態の断面図で、第６図は後傾位置の起立ロ
ツク状態図、第７図はやや浅い後傾位置の起立ロ
ツク状態図、第８図はロツク解除した回動過程の
状態図、第９図は前倒し状態図である。
１……シート、２……シートクツシヨン、３…
…シートバツク、５……クツシヨン側ヒンジアー
ム、６……バツク側ヒンジアーム、７……ヒンジ
ピン、８……ガイド、９……ロツクプレート、９
ａ……係合凹部、１２……ロツクピンホルダー、
１４……ロツクピン、１６……ばね、１８，１９
……摺動部（摺動ピン）、Ｋ……クリアランス。
The drawings show one embodiment of the present invention, and FIG. 1 is an internal side view of the locking device in the upright locked state,
The figure is a partial sectional view taken along the - line in Figure 1, Figure 3 is a partial sectional view taken along the - line in Figure 1, Figure 4 is an exploded perspective view of the locking device, and Figures 5 a, b, and c are FIGS. 6 to 9 are side views of the seat back in its operating state, and sectional views of the locking device in its operating state with some parts omitted. FIG. 8 is a diagram showing a state in which the lock is raised up in a shallow backward tilted position, FIG. 8 is a diagram showing a state in which the rotation process is released and FIG. 1... Sheet, 2... Seat cushion, 3...
...Seat back, 5...Cushion side hinge arm, 6...Back side hinge arm, 7...Hinge pin, 8...Guide, 9...Lock plate, 9
a...Engagement recess, 12...Lock pin holder,
14... Lock pin, 16... Spring, 18, 19
...Sliding part (sliding pin), K...Clearance.
Claims (1)
ートとロツクピンとの係合により所定の起立角度
にロツク保持するシートバツクのロツク装置にお
いて、前記ロツクピンをロツクプレートに係合す
る方向に常時回動付勢したロツクピンホルダーに
摺動部を設けると共に、この摺動部がシートバツ
クの回動過程で摺接するガイドをロツクプレート
側に設け、このガイドに摺動部が摺接案内される
ことにより前記ロツクピンホルダーが反ロツクプ
レート方に回動してロツクピンとロツクプレート
との間にクリアランスを生じせしめる構成とした
ことを特徴とするシートバツクのロツク装置。 In a seat bag locking device that locks and holds a rotatably pivoted seat bag at a predetermined upright angle by engagement between a lock plate and a lock pin, the lock is always biased to rotate in a direction in which the lock pin is engaged with the lock plate. The pin holder is provided with a sliding part, and a guide is provided on the lock plate side with which this sliding part comes into sliding contact during the rotation process of the seat bag, and by being guided in sliding contact with this guide, the lock pin holder is A locking device for a seat back, characterized in that the locking device rotates in the direction opposite to the locking plate to create a clearance between the locking pin and the locking plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989143065U JPH0540757Y2 (en) | 1989-12-13 | 1989-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989143065U JPH0540757Y2 (en) | 1989-12-13 | 1989-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0382228U JPH0382228U (en) | 1991-08-22 |
| JPH0540757Y2 true JPH0540757Y2 (en) | 1993-10-15 |
Family
ID=31689865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989143065U Expired - Lifetime JPH0540757Y2 (en) | 1989-12-13 | 1989-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540757Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5375004B2 (en) * | 2008-09-29 | 2013-12-25 | トヨタ紡織株式会社 | Fastening structure of member mounting bracket |
| JP2010285046A (en) * | 2009-06-10 | 2010-12-24 | Ts Tech Co Ltd | Vehicle seat |
| JP5457728B2 (en) * | 2009-06-10 | 2014-04-02 | テイ・エス テック株式会社 | Vehicle seat |
-
1989
- 1989-12-13 JP JP1989143065U patent/JPH0540757Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0382228U (en) | 1991-08-22 |
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