JPH07137564A - Seat back forward tilting device of seat of automobile - Google Patents

Seat back forward tilting device of seat of automobile

Info

Publication number
JPH07137564A
JPH07137564A JP31431993A JP31431993A JPH07137564A JP H07137564 A JPH07137564 A JP H07137564A JP 31431993 A JP31431993 A JP 31431993A JP 31431993 A JP31431993 A JP 31431993A JP H07137564 A JPH07137564 A JP H07137564A
Authority
JP
Japan
Prior art keywords
spring
backrest
tilting
clutch spring
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.)
Granted
Application number
JP31431993A
Other languages
Japanese (ja)
Other versions
JP3391528B2 (en
Inventor
Katsuyuki Kawai
克幸 河合
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chuo Hatsujo KK
Chuo Spring Co Ltd
Original Assignee
Chuo Hatsujo KK
Chuo Spring Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chuo Hatsujo KK, Chuo Spring Co Ltd filed Critical Chuo Hatsujo KK
Priority to JP31431993A priority Critical patent/JP3391528B2/en
Publication of JPH07137564A publication Critical patent/JPH07137564A/en
Application granted granted Critical
Publication of JP3391528B2 publication Critical patent/JP3391528B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To tilt a seat back to the front side safely, by applying a braking to the forward tilting of the seat back by deforming a clutch spring in the diameter extending direction, when a latch is released and the seat back is going to tilt forward by an energizing spring, so as to increase the friction force with the inner peripheral surface of a case. CONSTITUTION:When a knob is pulled and a latch is released, a seat back in the erecting posture is going to tilt forward by the elastic force of an energizing spring, and a tilting holding shaft 7a is rotate counterclockwise following the forward tilting. As a result, a driving body 35 serration-connected to the holding shaft 7 is rotated in the same direction, the engaging surface 43a of one side projection piece 41a pushes one side engaging piece 46a of a spring body 45 so as to rotate the spring body 45 in the same direction, and the other side engaging piece 46b of the spring body 45 presses the other side latch 33b of a clutch spring 32 from the outer side. As a result, the clutch spring 32 extendes its diameter, and the friction force with the inner peripheral surface of a case 31 is increased so as to lock unrotatable, and a braking of the forward tilting of the seat back 3 is applied, so as to tilt the seat back 3 to the front side slowly.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動車のシートの背も
たれを緩速度で前傾させることができるようにした背も
たれ前傾装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backrest forward leaning device capable of leaning forward the backrest of a vehicle seat at a slow speed.

【0002】[0002]

【従来の技術】自動車のシートの背もたれを前傾させる
のは、例えば、後部シートの背もたれを前傾させること
によりトランクを車室に連通したり、また、2ドアの自
動車で後部車室に乗り込めるように前部シートの背もた
れを前傾させる場合がある。
2. Description of the Related Art The seat back of a vehicle is tilted forward by, for example, connecting the trunk to the passenger compartment by tilting the rear seat back, or by using a two-door vehicle to get into the rear passenger compartment. The front seat backrest may be tilted forward.

【0003】従来の背もたれ前傾装置としては、シート
の座部に背もたれを前傾可能に軸支してその背もたれを
前傾方向に揺動付勢する付勢ばねを設け、背もたれを常
には付勢力に抗して起立姿勢にラッチし、そのラッチの
解除により付勢力で前傾させるようにしたものが知られ
ている。
As a conventional backrest tilting device, a biasing spring for pivotally supporting the backrest on the seat portion of the seat so as to tilt forward and swinging the backrest in the forward tilting direction is provided, and the backrest is always biased. It is known that the device is latched in a standing posture against the force and is biased forward by the release of the latch.

【0004】[0004]

【発明が解決しようとする課題】しかしながら従来装置
は、背もたれが付勢力により急速に前傾する構造である
ため、例えばシートの座部に置かれた物品を壊したり、
あるいは、幼児を挟んだりするおそれがあって、安全性
の上で問題があった。
However, since the conventional apparatus has a structure in which the backrest leans forward rapidly due to the urging force, for example, an article placed on the seat of the seat is broken,
Alternatively, there is a risk of pinching an infant, which is a safety issue.

【0005】[0005]

【課題を解決するための手段】本発明の自動車のシート
の背もたれ前傾装置は、叙上の点に鑑み完成されたもの
であって、背もたれと一体的に回動する傾動支持軸と同
心に円形のケースを固設し、そのケース内に円形のクラ
ッチばねを緊密に嵌装してそのクラッチばねの円周方向
に間隔を空けた両端に内向きの掛止部を形成するととも
に、ケース内に傾動支持軸と一体的に回動可能な中空の
駆動体を嵌装して、その外周に形成した切込溝の円周方
向の両端面をクラッチばねの掛止部に夫々係合可能に対
応させ、駆動体の内周に、円周方向の両端に外向きの係
合片を形成した円弧形のばね体を嵌装して、そのばね体
の背もたれが前傾する場合の回転方向の前端側の係合片
をクラッチばねの一方の掛止部と駆動体の対応する端面
との間に、後端側の係合片をクラッチばねの他方の掛止
部の外側に夫々嵌入した構成とした。
SUMMARY OF THE INVENTION A vehicle seat backrest tilting device according to the present invention has been completed in view of the above points, and is concentric with a tilting support shaft that rotates integrally with the backrest. A circular case is fixed, and a circular clutch spring is tightly fitted inside the case to form inward hooks at both ends of the clutch spring that are spaced apart in the circumferential direction. A hollow driving body that is rotatable integrally with the tilt support shaft is fitted to the both ends of the notch groove formed on the outer periphery thereof in the circumferential direction so that they can be engaged with the engaging portions of the clutch spring, respectively. Correspondingly, the inner circumference of the drive body is fitted with arcuate spring bodies with outward facing engagement pieces formed at both ends in the circumferential direction, and the rotation direction when the backrest of the spring body leans forward Of the engaging piece on the front end side of the clutch spring between the one engaging portion of the clutch spring and the corresponding end surface of the driving body. It has a structure which is respectively fitted into the engaging pieces on the outside of the other engaging portion of the clutch spring.

【0006】[0006]

【作用】本発明は以下のように作用する。ラッチを解除
すると背もたれが付勢ばねの付勢力で前傾しようとし、
それに伴い傾動支持軸が回動すると、それと一体的に回
動する駆動体がばね体の前端側の係合片を押してそれを
回動させ、そのばね体の後端側の係合片がクラッチばね
の対応する掛止部を外側から押圧する。それにより、ク
ラッチばねが拡径方向に変形してケースの内周面との摩
擦力が増大することにより回転不能にロックされて、背
もたれの前傾に制動が加えられる。
The present invention operates as follows. When the latch is released, the backrest tries to lean forward due to the biasing force of the biasing spring,
When the tilt support shaft rotates accordingly, the driving body that rotates integrally with the tilt support shaft pushes the engaging piece on the front end side of the spring body to rotate it, and the engaging piece on the rear end side of the spring body causes the clutch to move. The corresponding catch of the spring is pressed from the outside. As a result, the clutch spring deforms in the radial direction and the frictional force with the inner peripheral surface of the case increases, so that the clutch spring is locked so that it cannot rotate, and braking is applied to the forward lean of the backrest.

【0007】引き続き傾動支持軸にトルクが加わると、
ばね体を弾性変形させつつ駆動体が回動して、ばね体の
前端側の係合片がクラッチばねの対応する掛止部を内側
から押圧する。それにより、クラッチばねが縮径方向に
変形してケースの内周面との摩擦力が減少し、駆動体と
もども回動する。その間にばね体が弾性復元する。
When torque is continuously applied to the tilt support shaft,
The drive body rotates while elastically deforming the spring body, and the engagement piece on the front end side of the spring body presses the corresponding hooking portion of the clutch spring from the inside. As a result, the clutch spring is deformed in the diameter reducing direction, the frictional force with the inner peripheral surface of the case is reduced, and the clutch spring rotates with the drive body. Meanwhile, the spring body elastically restores.

【0008】それ以降、上記の動作が繰り返され、背も
たれの前傾中に適宜に制動が加えられて緩やかに前傾さ
れる。
After that, the above-described operation is repeated, and braking is appropriately applied during forward leaning of the backrest to gently lean forward.

【0009】背もたれを起こす場合は、駆動体が逆方向
に回転するのに伴い、クラッチばねの一方の掛止部を常
に内側から押圧して縮径状態とするので、抵抗を受ける
ことなく背もたれがスムーズに起こされる。
In the case of causing the backrest, as the driving body rotates in the opposite direction, one of the engaging portions of the clutch spring is constantly pressed from the inside to reduce the diameter, so that the backrest does not receive resistance. Wake up smoothly.

【0010】[0010]

【実施例】以下、本発明を自動車の後部シートの背もた
れを前傾させることによりトランクを車室に連通させる
トランクスルーオープナーシステムに適用した一実施例
を図1〜図4に基づいて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a trunk through opener system for connecting a trunk to a passenger compartment by tilting a backrest of a rear seat of a vehicle forward will be described with reference to FIGS.

【0011】図1において、符号1は自動車のボディに
据え付けられた後部シートであって、その座部2の後部
側面に固定された下ブラケット5の軸受部に、背もたれ
3の下部側面に固定した上ブラケット6に突設された傾
動支持軸7が嵌装されて、背もたれ3が傾動自由に支持
されており、その傾動支持軸7の回りに装着されたうず
巻ばねからなる付勢ばね9の内端が支持軸7の先端面に
形成された割り溝に嵌着され、外端が下ブラケツト5に
突設された掛止ピン10に掛止されて、背もたれ3は付
勢ばね9の弾力により前傾方向に付勢されている。
In FIG. 1, reference numeral 1 denotes a rear seat installed on the body of an automobile, which is fixed to a bearing portion of a lower bracket 5 fixed to a rear side surface of a seat portion 2 thereof and to a lower side surface of a backrest 3. A tilting support shaft 7 protruding from the upper bracket 6 is fitted to the backrest 3 so that the backrest 3 is tiltably supported, and an urging spring 9 composed of a spiral spring is mounted around the tilting support shaft 7. The inner end is fitted into a split groove formed on the front end surface of the support shaft 7, and the outer end is hooked on a hooking pin 10 projecting from the lower bracket 5, so that the backrest 3 is elastically actuated by an urging spring 9. Is biased in the forward tilt direction.

【0012】傾動支持軸7には2つの切り欠き12を形
成した爪車11が固定されているとともに、下ブラケッ
ト5に、その切り欠き12に掛止する鈎部を上端に設け
た掛止レバー14が軸15により揺動自由に支持され
て、軸15よりも下方と下ブラケット5の前部に形成さ
れた舌片16との間に装着された引っ張りばね17の弾
力により時計方向の揺動力が付勢されている。
A ratchet wheel 11 having two notches 12 is fixed to the tilting support shaft 7, and a hook lever is provided on the lower bracket 5 for hooking the notches 12 at its upper end. 14 is swingably supported by a shaft 15, and a clockwise swinging force is generated by an elastic force of a tension spring 17 mounted between the shaft 15 and a tongue piece 16 formed on the front portion of the lower bracket 5. Is being urged.

【0013】符号19は可撓性を有するアウタチューブ
20内にインナケーブル21を挿通したコントロールケ
ーブルであって、アウタチューブ20の一端は下ブラケ
ット5に、他端はトランク23の開口付近の内側に夫々
固定具24、25によって固定されており、アウタチュ
ーブ20の一端から突出したインナケーブル21は上記
の掛止レバー14の下端に連結され、他端から突出した
インナケーブル21にはノブ26が取り付けられてい
て、ノブ26と固定具25の間に圧縮ばね27が装着さ
れてインナケーブル21に張力を付与している。
Reference numeral 19 is a control cable in which an inner cable 21 is inserted into a flexible outer tube 20, one end of the outer tube 20 is located in the lower bracket 5, and the other end is located inside the opening of the trunk 23. Inner cables 21 projecting from one end of the outer tube 20 are connected to the lower ends of the above-mentioned latching levers 14, respectively, and are fixed by fasteners 24 and 25, respectively, and a knob 26 is attached to the inner cable 21 projecting from the other end. A compression spring 27 is mounted between the knob 26 and the fixture 25 to apply tension to the inner cable 21.

【0014】背もたれ3は、常には掛止レバー14の鈎
部が爪車11の下側の切り欠き12に掛止することによ
って起立姿勢に保持されており、トランク23を開いて
ノブ26を引っ張ると、インナケーブル21が引っ張ら
れて掛止片14が反時計方向に揺動し、爪車11のラッ
チが解除されて、背もたれ3が付勢ばね9の弾力で前傾
するようになっている。
The backrest 3 is always held in an upright position by the hook portion of the latch lever 14 latching on the notch 12 on the lower side of the ratchet wheel 11, and the trunk 23 is opened to pull the knob 26. Then, the inner cable 21 is pulled, the latching piece 14 swings counterclockwise, the latch of the ratchet wheel 11 is released, and the backrest 3 is tilted forward by the elastic force of the biasing spring 9. .

【0015】続いて、背もたれ3を緩やかに前傾させる
部分の機構について、図2〜図4によって説明する。
Next, the mechanism of the portion for gently tilting the backrest 3 forward will be described with reference to FIGS.

【0016】後部シート1の反対側の側面では、上記と
同じように、座部2に下ブラケット5aが、背もたれ3
に上ブラケット6aが夫々固定され、上ブラケット6a
に先端側にセレーションを形成した傾動支持軸7aが突
設されて、下ブラケット5aの軸受孔30に嵌装されて
いる。
On the opposite side surface of the rear seat 1, the lower bracket 5a and the backrest 3 are attached to the seat portion 2 in the same manner as described above.
The upper brackets 6a are fixed to the
A tilting support shaft 7a having serrations formed on the tip side thereof is provided so as to project, and is fitted into the bearing hole 30 of the lower bracket 5a.

【0017】下ブラケット5aの表面には、一面側を開
口した円形のケース31が傾動支持軸7aと同心に固定
されている。そのケース31内には、ねじりばねからな
るクラッチばね32が緊密に嵌装され、その円周方向に
間隔を空けた両端に、内向きの掛止部33a、33bが
形成されている。
On the surface of the lower bracket 5a, a circular case 31 whose one surface is opened is fixed concentrically with the tilt support shaft 7a. A clutch spring 32, which is a torsion spring, is tightly fitted in the case 31, and inward locking portions 33a and 33b are formed at both ends of the case 31 that are spaced apart in the circumferential direction.

【0018】また、ケース31内には、基板36の前面
に軸部37を突成してなる駆動体35が、その軸部37
の先端面に穿設したセレーション孔38内に上記の傾動
支持軸7aのセレーション部を嵌合し、また、基板36
の後面に突設した軸39をケース31の軸受孔40に嵌
装して、傾動支持軸7aと一体回転可能に嵌装されてい
る。
Further, in the case 31, a driving body 35 formed by projecting a shaft portion 37 on the front surface of the substrate 36 is provided.
The serration portion of the tilt support shaft 7a is fitted in the serration hole 38 formed in the tip end surface of the base plate 36,
A shaft 39 protruding from the rear surface is fitted in the bearing hole 40 of the case 31 so as to be integrally rotatable with the tilt support shaft 7a.

【0019】その駆動体35の基板36の前面には、断
面略扇形をなす2つの突片41a、41bが軸心を挟ん
だ反対側の位置に形成されており、各突片41a、41
bの間の一方の切込溝42を挟んで互いに隣接する面4
3a、43bが、夫々上記したクラッチばね32の各掛
止部33a、33bと係合可能に対応する係合面となっ
ている。
On the front surface of the substrate 36 of the driving body 35, two projecting pieces 41a, 41b having a substantially fan-shaped cross section are formed at positions opposite to each other with the shaft center interposed therebetween.
Surfaces 4 adjacent to each other with one notch groove 42 between b
3a and 43b are engaging surfaces corresponding to the engaging portions 33a and 33b of the clutch spring 32 described above, respectively.

【0020】その駆動体35の両突片41a、41bの
内周には、板ばねを円弧形に曲成してその円周方向の両
端に外向きの係合片46a、46bを形成したばね体4
5が嵌装され、一方の係合片46aがクラッチばね32
の一方の掛止部33aとそれと対応した駆動体35の係
合面43aとの間に、また、他方の係合片46bがクラ
ッチばね32の他方の掛止部33bの外側に夫々嵌入さ
れている。
On the inner circumferences of both the projecting pieces 41a, 41b of the driving body 35, a leaf spring is bent in an arc shape, and outwardly engaging pieces 46a, 46b are formed at both ends in the circumferential direction. Spring body 4
5 is fitted, and one engaging piece 46a is engaged with the clutch spring 32.
Between one of the engaging portions 33a and the corresponding engaging surface 43a of the drive body 35, and the other engaging piece 46b is fitted on the outside of the other engaging portion 33b of the clutch spring 32, respectively. There is.

【0021】次に、本実施例の作動を説明する。既述し
たように、トランク23を開いてノブ26を引っ張る
と、爪車11のラッチが解除されて、起立姿勢にあった
背もたれ3が付勢ばね9の弾力で前傾しようとし、それ
に伴いその傾動支持軸7aが図4(A)の反時計方向に
回動すると、セレーション結合された駆動体35が同方
向に回動し、一方の突片41aの係合面43aがばね体
45の一方の係合片46aを押してばね体45を同方向
に回動させ、そのばね体45の他方の係合片46bがク
ラッチばね32の他方の掛止部33bを外側から押圧す
る。
Next, the operation of this embodiment will be described. As described above, when the trunk 23 is opened and the knob 26 is pulled, the latch of the ratchet wheel 11 is released, and the backrest 3 in the standing posture tries to lean forward due to the elastic force of the biasing spring 9. When the tilt support shaft 7a rotates counterclockwise in FIG. 4 (A), the serration-coupled drive body 35 rotates in the same direction, and the engagement surface 43a of one projection piece 41a is connected to one side of the spring body 45. The engaging member 46a is pressed to rotate the spring body 45 in the same direction, and the other engaging member 46b of the spring member 45 presses the other engaging portion 33b of the clutch spring 32 from the outside.

【0022】それにより、クラッチばね32が拡径方向
に変形してケース31の内周面との摩擦力が増大するこ
とにより回転不能にロックされて、背もたれ3の前傾に
制動が加えられる。
As a result, the clutch spring 32 is deformed in the radial direction and the frictional force with the inner peripheral surface of the case 31 is increased, so that the clutch spring 32 is locked so as not to rotate and braking is applied to the forward lean of the backrest 3.

【0023】引き続き傾動支持軸7aにトルクが加わる
と、同図(B)に示すように、ばね体45を弾性変形さ
せつつ駆動体35が反時計方向に回動して、ばね体45
の一方の係合片46aがクラッチばね32の一方の掛止
部33aを内側から押圧する。それにより、クラッチば
ね32が縮径方向に変形してケース31の内周面との摩
擦力が減少し、駆動体35ともども回転可能する。その
間にばね体45が弾性復元する。
When torque is continuously applied to the tilt support shaft 7a, the drive body 35 rotates counterclockwise while elastically deforming the spring body 45, as shown in FIG.
One of the engaging pieces 46a presses one of the engaging portions 33a of the clutch spring 32 from the inside. As a result, the clutch spring 32 is deformed in the diameter reducing direction, the frictional force with the inner peripheral surface of the case 31 is reduced, and the clutch spring 32 can rotate together with the driving body 35. Meanwhile, the spring body 45 elastically restores.

【0024】それ以降、上記の動作が繰り返され、背も
たれ3の前傾中に適宜に制動が加えられて緩やかに前傾
される。
After that, the above operation is repeated, and while the backrest 3 is leaning forward, appropriate braking is applied and the backrest 3 is gently leaning forward.

【0025】背もたれ3を起こす場合は、駆動体35が
図4の時計方向に回転し、それに伴い、駆動体35の他
方の突片41bの係合面43bがクラッチばね32の他
方の掛止部33bを常に内側から押圧して縮径状態とす
るので、駆動体35がクラッチばね32、ばね体45と
もども抵抗を受けることなく回動して、背もたれ3がス
ムーズに起こされる。
When the backrest 3 is raised, the driving body 35 rotates clockwise in FIG. 4, and accordingly, the engaging surface 43b of the other projecting piece 41b of the driving body 35 causes the other engaging portion of the clutch spring 32 to engage. Since 33b is always pressed from the inner side to be in a reduced diameter state, the drive body 35 rotates without receiving the resistance with both the clutch spring 32 and the spring body 45, and the backrest 3 is smoothly raised.

【0026】なお、上記実施例では、背もたれ3の前傾
付勢の機構と、前傾を緩速度に抑制する機構とを後部シ
ート1の両側に各別に設けたが、シート1の一側におい
て連設することも可能である。
In the above embodiment, the mechanism for biasing the backrest 3 forward and the mechanism for suppressing the forward lean to a slow speed are separately provided on both sides of the rear seat 1, but on one side of the seat 1. It is also possible to install them in series.

【0027】また、本発明は、2ドアの自動車で後部車
室に乗り込めるように前部シートの背もたれを前傾させ
る装置にも同様に適用することができる。
Further, the present invention can be similarly applied to an apparatus for tilting the backrest of the front seat forward so that the passenger can get into the rear compartment of a two-door vehicle.

【0028】[0028]

【発明の効果】以上具体的に説明したように、本発明に
よれば、シートの背もたれを緩速度で前傾させることが
でき、急速度で前傾された場合のように座部に置かれた
物品を壊したり、幼児を挟んだりするのが防止できて、
安全性を高めることができる効果がある。
As described above in detail, according to the present invention, the backrest of the seat can be tilted forward at a slow speed and can be placed on the seat portion as if it was tilted forward at a rapid speed. It is possible to prevent smashing items and pinching infants,
It has the effect of improving safety.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の背もたれの前傾付勢機構を
示す斜視図である。
FIG. 1 is a perspective view showing a forward leaning biasing mechanism of a backrest according to an embodiment of the present invention.

【図2】前傾の速度抑制機構部分の断面図である。FIG. 2 is a cross-sectional view of a forward lean speed suppressing mechanism portion.

【図3】その内部構成部品の分解斜視図である。FIG. 3 is an exploded perspective view of its internal components.

【図4】その作動説明図である。FIG. 4 is an explanatory diagram of its operation.

【符号の説明】[Explanation of symbols]

1:後部シート 2:座部 3:背もたれ 5、5a:
下ブラケット 6、6a:上ブラケット 7、7a:傾
動支持軸 9:付勢ばね 11:爪車 14:掛止レバ
ー 19:コントロールケーブル 31:ケース 3
2:クラッチばね 33a、33b:掛止部 35:駆動体 41a、41
b:突片 42:切込溝 43a、43b:係合面 4
5:ばね体 46a、46b:係合片
1: Rear seat 2: Seat part 3: Backrest 5, 5a:
Lower bracket 6, 6a: Upper bracket 7, 7a: Tilt support shaft 9: Bias spring 11: Claw wheel 14: Latch lever 19: Control cable 31: Case 3
2: Clutch springs 33a, 33b: Hooking portion 35: Driving body 41a, 41
b: protrusion 42: notch groove 43a, 43b: engaging surface 4
5: Spring body 46a, 46b: Engagement piece

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 自動車のシートの座部に背もたれを前傾
可能に軸支して該背もたれを前傾方向に揺動付勢する付
勢ばねを設け、前記背もたれを常には前記付勢力に抗し
て起立姿勢にラッチし、該ラッチの解除により前記付勢
力で前傾させるようにした自動車のシートの背もたれ前
傾装置において、 前記背もたれと一体的に回動する傾動支持軸と同心に円
形のケースを固設し、該ケース内に円形のクラッチばね
を緊密に嵌装して該クラッチばねの円周方向に間隔を空
けた両端に内向きの掛止部を形成するとともに、前記ケ
ース内に前記傾動支持軸と一体的に回動可能な中空の駆
動体を嵌装して、その外周に形成した切込溝の円周方向
の両端面を前記クラッチばねの前記掛止部に夫々係合可
能に対応させ、前記駆動体の内周に、円周方向の両端に
外向きの係合片を形成した円弧形のばね体を嵌装して、
該ばね体の前記背もたれが前傾する場合の回転方向の前
端側の前記係合片を前記クラッチばねの一方の掛止部と
前記駆動体の対応する端面との間に、後端側の前記係合
片を前記クラッチばねの他方の掛止部の外側に夫々嵌入
したことを特徴とする自動車のシートの背もたれ前傾装
置。
1. An urging spring for pivotally supporting a backrest in a seat portion of a vehicle for tilting the seatback forward and swinging the seatback in a forward tilting direction is provided, and the seatback is always resistant to the biasing force. In a backrest forward tilting device for a vehicle seat, which is latched in a standing posture and is tilted forward by releasing the latch, a tilting support shaft that rotates integrally with the backrest is circularly concentric with the tilting support shaft. A case is fixed, and a circular clutch spring is tightly fitted in the case to form inward locking portions at both ends of the clutch spring that are spaced apart in the circumferential direction. A hollow driving body that is rotatable integrally with the tilting support shaft is fitted, and both end surfaces in the circumferential direction of a notch groove formed on the outer periphery of the driving body are engaged with the engaging portions of the clutch spring, respectively. As much as possible, on the inner circumference of the driving body, at both ends in the circumferential direction And it fitted the spring body arcuate forming the engagement piece orientation,
The engaging piece on the front end side in the rotation direction when the backrest of the spring body tilts forward is provided between the one engaging portion of the clutch spring and the corresponding end surface of the driving body on the rear end side. An apparatus for leaning a backrest of a seat of an automobile, characterized in that engaging pieces are respectively fitted outside the other hooking portions of the clutch spring.
JP31431993A 1993-11-19 1993-11-19 Car seat back leaning device Expired - Fee Related JP3391528B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31431993A JP3391528B2 (en) 1993-11-19 1993-11-19 Car seat back leaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31431993A JP3391528B2 (en) 1993-11-19 1993-11-19 Car seat back leaning device

Publications (2)

Publication Number Publication Date
JPH07137564A true JPH07137564A (en) 1995-05-30
JP3391528B2 JP3391528B2 (en) 2003-03-31

Family

ID=18051919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31431993A Expired - Fee Related JP3391528B2 (en) 1993-11-19 1993-11-19 Car seat back leaning device

Country Status (1)

Country Link
JP (1) JP3391528B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444665B1 (en) * 2001-09-14 2004-08-18 현대자동차주식회사 Device for controlling torque of seat recliner spring
GB2423014A (en) * 2005-02-11 2006-08-16 Lear Corp Vehicle seat recliner with dampener
CN112677839A (en) * 2021-01-06 2021-04-20 重庆长安汽车股份有限公司 Locking structure of angle adjusting handle of automobile seat backrest
KR20210115198A (en) * 2020-03-12 2021-09-27 이영수 Lever module FOR limiting TILT operating Range of BACKREST CHAIR and CHAIR FOR adjusting backrest tilt using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444665B1 (en) * 2001-09-14 2004-08-18 현대자동차주식회사 Device for controlling torque of seat recliner spring
GB2423014A (en) * 2005-02-11 2006-08-16 Lear Corp Vehicle seat recliner with dampener
US7344195B2 (en) 2005-02-11 2008-03-18 Lear Corporation Dampener for a vehicle seat recliner
GB2423014B (en) * 2005-02-11 2008-04-16 Lear Corp Dampener For A Vehicle Seat Recliner
KR20210115198A (en) * 2020-03-12 2021-09-27 이영수 Lever module FOR limiting TILT operating Range of BACKREST CHAIR and CHAIR FOR adjusting backrest tilt using the same
CN112677839A (en) * 2021-01-06 2021-04-20 重庆长安汽车股份有限公司 Locking structure of angle adjusting handle of automobile seat backrest
CN112677839B (en) * 2021-01-06 2022-09-06 重庆长安汽车股份有限公司 Locking structure of angle adjusting handle of automobile seat backrest

Also Published As

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