JPH0299443A - Seat belt takeup device - Google Patents

Seat belt takeup device

Info

Publication number
JPH0299443A
JPH0299443A JP63249027A JP24902788A JPH0299443A JP H0299443 A JPH0299443 A JP H0299443A JP 63249027 A JP63249027 A JP 63249027A JP 24902788 A JP24902788 A JP 24902788A JP H0299443 A JPH0299443 A JP H0299443A
Authority
JP
Japan
Prior art keywords
gear
reel
lock gear
lock
seat belt
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
Application number
JP63249027A
Other languages
Japanese (ja)
Inventor
Kazuaki Shimoki
一昭 下木
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP63249027A priority Critical patent/JPH0299443A/en
Publication of JPH0299443A publication Critical patent/JPH0299443A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/44Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

PURPOSE:To avoid a sense of oppression due to a seat belt by applying the constitution wherein a lock gear is engaged with a reel gear at a position before final engagement during the oscillation of an oscillation frame axially fitted with the lock gear capable of free engagement and disengagement with the reel gear toward an engagement position, and making the reel gear capable of turn in a direction for pulling out the seat belt. CONSTITUTION:A lock gear 3 to allow the turn of a reel gear 2 in a direction for pulling out a seat belt and to prevent the turn of the gear 2 in a belt takeup direction is engaged with a reel gear coupled to a reel axis. The lock gear 3 is axially connected to an oscillation frame 4 in a gear casing 5 in such a way as to be capable of free oscillation at the engagement position of both gears 2 and d and the release position thereof about a support axis 6. In this case, the lock gear 3 is so fitted that the center thereof will approximately agree to a straight line passing each center of the reel gear 2 and the support axis 6 at the engagement position. Furthermore, the lock gear 3 is so constituted as to start the engagement thereof with the reel gear 2 before the engagement position when the oscillation frame 4 is oscillated from a release position to an engagement position, thereby turning the reel gear 2 in a direction for pulling out the belt.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、主として車両用のシートベルト巻取装置に関
する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention mainly relates to a seat belt retractor for a vehicle.

(従来の技術) 従来、この種装置として特開昭57−55243号公報
により、ベルト巻取リールにリールギヤを固設し、該リ
ールギヤに咬合してこれのベルト引出し方向への回動を
許容しベルト巻取方向への回動を阻止するロックギヤを
揺動枠に軸着して、該揺動枠を、支軸を中心に該ロック
ギヤが該リールギヤに咬合する咬合位置と、該ロックギ
ヤが該リールギヤから離脱する解除位置とに揺動自在と
し、シー トベルトを引出して装着したとき揺動枠を解
除位置から咬合位置に揺動してリールギヤをロックし、
シートベルトの巻取りによる張力が乗員に作用しないよ
うにしたものは知られる。
(Prior Art) Conventionally, this type of device is disclosed in Japanese Patent Application Laid-Open No. 57-55243, in which a reel gear is fixedly attached to a belt take-up reel, and the reel gear is engaged with the reel gear to allow rotation in the direction in which the belt is pulled out. A lock gear that prevents rotation in the belt winding direction is pivoted to a swinging frame, and the swinging frame is set at an engagement position where the lock gear engages the reel gear around a support shaft, and a lock gear engages the reel gear around the support shaft. When the seat belt is pulled out and put on, the swing frame swings from the release position to the engagement position to lock the reel gear.
It is known that the tension caused by the winding of the seatbelt does not act on the occupant.

(発明が解決17ようとする課題) ところで、シートベルトの圧迫感を無くするため、シー
トベルトをある程度弛みを付けて装着することを望む使
用者が多い。
(17 Problems to be Solved by the Invention) By the way, many users desire to wear the seat belt with some slack in order to eliminate the feeling of pressure from the seat belt.

ここで、上記した従来のものでは、ロックギヤを揺動枠
に、咬合位置において該ロックギヤの中心と支軸の中心
とを通る直線と、該ロックギヤの中心とリールギヤの中
心とを通る直線とが略直交するように取付けられており
、このため揺動枠が解除位置から咬合位置に揺動された
ときロックギヤがリールギヤにその径方向外方から咬合
されて、リールギヤが揺動枠の揺動時点の位相に拘束さ
れ、結局シートベルトを弛みを付けて装着するには、乗
員がシートベルトを余分に引出しこの状態で揺動枠を揺
動せざるを得なくなり、その操作が面倒になる。
Here, in the above-mentioned conventional device, the lock gear is used as a swing frame, and a straight line passing through the center of the lock gear and the center of the support shaft in the occlusal position and a straight line passing through the center of the lock gear and the center of the reel gear are approximate. They are mounted perpendicularly to each other, so that when the swing frame is swung from the release position to the engaged position, the lock gear engages with the reel gear from the outside in the radial direction, and the reel gear is positioned at the point in time when the oscillation frame swings. In order to loosen the seat belt and put it on, the occupant is forced to pull out the seat belt an extra amount and swing the swing frame in this state, making the operation cumbersome.

又、」上記した従来のものでは、ロックギ・ヤを歯数の
異なる2枚のギヤで構成すると共に、リールギヤを該各
ロックギヤに夫々咬合する2枚のギヤで構成し、該両口
ツクギヤの対向する側面に各ストッパを突設し、ロック
ギヤをリールギヤに咬合した状態でシートベルトを長く
引き出せるようにしているが、ギヤの枚数が多く構造が
複雑である。
In addition, in the above-mentioned conventional device, the lock gear is composed of two gears having different numbers of teeth, and the reel gear is composed of two gears that mesh with each of the lock gears, and the double-ended gear is opposite to the reel gear. Each stopper is provided protruding from the side surface of the seat belt so that the seat belt can be pulled out for a long time with the lock gear engaged with the reel gear, but the structure is complicated due to the large number of gears.

本発明は、かかる問題点に鑑ろてなされたものであり、
その第1の目的は、操作が簡単で且つ、圧迫感を与えな
いようにしたベルト巻取装置を提供することにあり、文
節2の目的は部品点数を削減でき構造の簡単なベルト巻
取装置を提供することにある。
The present invention has been made in view of these problems,
The first purpose is to provide a belt winding device that is easy to operate and does not give a feeling of pressure, and the second purpose is to provide a belt winding device that can reduce the number of parts and has a simple structure. Our goal is to provide the following.

(課題を解決するための手段) 請求項1の発明では、上記第1の目的を達成すべく、ベ
ルト巻取リールのリール軸にリールギヤを固設し、該リ
ールギヤに咬合してこれのベルト引出し方向への回動を
許容しベルト巻取方向への回動を阻止するロックギヤを
揺動枠に軸着して、該揺動枠を、支軸を中心に該ロック
ギヤが該リールギヤに咬合する咬合位置と、該ロックギ
ヤが該リールギヤから離脱する解除位置とに揺動自在と
するシートベルト巻取装置において、該ロックギヤを該
揺動枠に、該咬合位置において該リールギヤの中心と該
支軸の中心とを通る直線上に該ロックギヤの中心が略合
致するように取付け、該揺動枠を該解除位置から該咬合
位置に揺動したとき該咬合位置の手前で該ロックギヤが
該リールギヤに咬合し始めて該リールギヤをベルト引出
し方向に回動するように構成した。
(Means for Solving the Problem) In order to achieve the first object, a reel gear is fixed to the reel shaft of the belt take-up reel, and the belt is pulled out by engaging the reel gear. A lock gear that allows rotation in the belt winding direction and prevents rotation in the belt winding direction is pivoted to a swing frame, and the swing frame is engaged with the reel gear around a support shaft. In a seatbelt retractor that can freely swing between a position and a release position where the lock gear is separated from the reel gear, the lock gear is attached to the swing frame, and the center of the reel gear and the center of the support shaft are connected to each other in the engagement position. The lock gear is mounted so that its center substantially coincides with a straight line passing through the latches, and when the swing frame is swung from the release position to the occlusion position, the lock gear begins to occlusion with the reel gear before the occlusion position. The reel gear was configured to rotate in the belt drawing direction.

又、上記第2の目的を達成すべく、請求項2の発明では
、前記揺動枠に、前記ロックギヤと歯数の異なるサブギ
ヤを該ロックギヤに咬合して設けると共に、該両ギヤの
側面に各1個のストッパをこれらストッパの回動軌跡が
オーバラップするように突設した。
In addition, in order to achieve the second object, in the invention of claim 2, a sub-gear having a different number of teeth from the lock gear is provided on the swing frame so as to mesh with the lock gear, and each sub-gear is provided on the side surface of both gears. One stopper was provided protrudingly so that the rotation loci of these stoppers overlapped.

(作 用) シートベルトをベルト巻取リールから引出してタングプ
レートをバックルに挿着し、リターンスプリング力によ
り余剰シートベルトがベルト巻取リールに巻取られてシ
ートベルトが乗員に密着したところで、揺動枠を解除位
置から咬合位置に揺動する。これによれば、揺動枠の解
除位置からの咬合位置への揺動によるロックギヤを介し
てのリールギヤの回動でシートベルトが所定量引出され
てこの状態に保持され、シートベルトに少許弛みが付け
られた状態となる。
(Operation) The seat belt is pulled out from the belt take-up reel, the tongue plate is inserted into the buckle, and the surplus seat belt is wound onto the belt take-up reel by the force of the return spring, and when the seat belt is in close contact with the occupant, the seat belt is shaken. The movable frame is swung from the release position to the occlusal position. According to this, the seat belt is pulled out by a predetermined amount and held in this state by the rotation of the reel gear via the lock gear due to the swing of the swing frame from the release position to the occlusion position, and the seat belt is held in this state by a small amount of slack. It will be attached.

次に、揺動枠の咬合位置への揺動後のシートベルトの引
出し時における請求項2の発明の作用を、リールギヤが
ベルト引出し方向に回動したときのロックギヤの回転方
向を正転方向として説明する。
Next, the effect of the invention of claim 2 when the seat belt is pulled out after the swing frame swings to the occlusal position will be explained assuming that the rotation direction of the lock gear when the reel gear rotates in the belt pull-out direction is the normal rotation direction. explain.

ロックギヤのストッパとサブギヤのストッパとが当接し
てロックギヤの逆転が阻止された状態からシートベルト
を引出すと、リールギヤを介してロックギヤが正転され
ると共に該ロックギヤを介してサブギヤが回転する。
When the seat belt is pulled out from a state in which the stopper of the lock gear and the stopper of the sub-gear are in contact and the reverse rotation of the lock gear is prevented, the lock gear is rotated in the forward direction via the reel gear, and the sub-gear is also rotated via the lock gear.

この場合、ロックギヤとサブギヤとの歯数を変えておく
ことで、上記と同様な位相となるのは、ロックギヤの歯
数21%サブギヤの歯数Z、としてロックギヤがZS/
IZs   ZL回転されたときであり、ストッパ同士
が当接しロックギヤの正転が阻止されるまでロックギヤ
は複数回回転し、それまでストッパ同士は当接せず、リ
ールギヤのベルト引出し方向への回動が許容されてシー
トベルトを充分な長さ引出せる。
In this case, by changing the number of teeth of the lock gear and the sub gear, the same phase as above can be obtained when the number of teeth of the lock gear is 21%, the number of teeth of the sub gear is Z, and the lock gear is ZS/
This is when the reel gear rotates IZs ZL, and the lock gear rotates multiple times until the stoppers contact each other and prevent the lock gear from rotating forward. Until then, the stoppers do not contact each other, and the rotation of the reel gear in the belt withdrawal direction is stopped. The seat belt can be pulled out for a sufficient length.

ここで、請求項2の発明で用いるギヤは、リールギヤと
ロックギヤとサブギヤとの3枚であり、4枚のギヤを用
いる上記した従来の装置と比べ構造が簡素化される。
Here, there are three gears used in the invention of claim 2: a reel gear, a lock gear, and a sub gear, and the structure is simplified compared to the above-mentioned conventional device using four gears.

(実施例) 図面で(1)はベルト巻取リールのリール軸、(2)は
該リール軸(1)に取付けたリールギヤを示し、該リー
ルギヤ(2)に咬合してこれのベルト引出し方向(図面
で矢視方向)への回動を許容しベルト巻取り方向への回
動を阻止するロックギヤ(3)を揺動枠(4)に軸着し
て、該揺動枠(4)をリールギヤ(2)を収納するギヤ
ケース(5)に支軸(6)を中心に該ロックギヤ(3)
が該リールギヤ(2)に咬合する咬合位置と、該ロック
ギヤ(3)が該リールギヤ(2)から離脱する解除位置
とに揺動自在に取付けた。
(Example) In the drawings, (1) shows the reel shaft of the belt take-up reel, and (2) shows the reel gear attached to the reel shaft (1), which meshes with the reel gear (2) and rotates in the belt pulling direction ( A lock gear (3) that allows rotation in the direction of the arrow in the drawing and prevents rotation in the belt winding direction is pivotally attached to the swing frame (4), and the swing frame (4) is connected to the reel gear. The lock gear (3) is placed around the spindle (6) in the gear case (5) that houses the lock gear (2).
The lock gear (3) is attached so as to be swingable between an engaged position where the lock gear (3) engages with the reel gear (2) and a release position where the lock gear (3) separates from the reel gear (2).

ここで、前記ロックギヤ(3)は揺動枠(4)に前記咬
合位置においてリールギヤ(2)の中心と支軸(6)の
中心とを通る直線上に該ロックギヤ(3)の中心が略合
致するように取付けられ、該揺動枠(4)を前記解除位
置から咬合位置に揺動したとき該咬合位置の手前でロッ
クギヤ(3)がリールギヤ(2)に咬合し始めて該リー
ルギヤ(2)をベルト引出し方向に回動するように構成
した。
Here, the center of the lock gear (3) substantially coincides with a straight line passing through the center of the reel gear (2) and the center of the support shaft (6) at the occlusion position of the rocking frame (4). When the swing frame (4) is swung from the released position to the occlusal position, the lock gear (3) starts to occlusion to the reel gear (2) before the occlusal position, and the reel gear (2) It is configured to rotate in the direction of belt withdrawal.

更に詳述するに、前記ロックギヤ(3)は揺動枠(4)
にリールギヤ(2)と支軸(6)との間に存するように
配置され、該揺動枠(4)に左方にのびるアーム(4a
)を突設すると共に、ギヤケース(5)に設けたソレノ
イド(7)のプランジャ(7a)を該アーム(4a)に
連結し、該ソレノイド(7)のコイル(7b)の励磁に
よる該プランジャ(7a)の作動により該揺動枠(4)
を、第5図で実線で示す解除位置から第1図で実線で示
す咬合位置にリールギヤ(2)のベルト引出方向の回動
と逆方向に揺動し得るようにした。
More specifically, the lock gear (3) is connected to the swing frame (4).
An arm (4a) is arranged between the reel gear (2) and the support shaft (6), and extends to the left on the swing frame (4).
) is provided protrudingly, and the plunger (7a) of a solenoid (7) provided in the gear case (5) is connected to the arm (4a), and the plunger (7a) is activated by excitation of the coil (7b) of the solenoid (7). ) The swing frame (4)
The reel gear (2) can be swung from a release position shown by a solid line in FIG. 5 to an occlusal position shown by a solid line in FIG.

そして、前記ソレノイド(7)の制御回路(8)にイグ
ニッションスイッチ(9)と、シートベルトのタングプ
レートをバックルに挿着したときにONするタングスイ
ッチ(10と、手動操作スイッチC11とを直列に接続
し、該制御回路(8)にタイマl′lbを接続すると共
に、ソレノイド(7)のコイル(7a)に図中AとBで
示す端子を導出して、これらスイッチ(9) (IQ 
(InがONされたとき当初は該コイル(7a)にBの
端子を介して通電し比較的強い電磁力を発生させ、所定
時間経過後読コイル(7a)にAの端子を介して通電し
、電流値を下げて消費電力を削減し得るようにした。
The control circuit (8) of the solenoid (7) is connected in series with an ignition switch (9), a tongue switch (10) that is turned on when the tongue plate of the seat belt is inserted into the buckle, and a manual operation switch C11. The timer l'lb is connected to the control circuit (8), and the terminals shown as A and B in the figure are led out to the coil (7a) of the solenoid (7), and these switches (9) (IQ
(When In is turned ON, the coil (7a) is initially energized through the B terminal to generate a relatively strong electromagnetic force, and after a predetermined time has elapsed, the reading coil (7a) is energized through the A terminal. , it was possible to reduce power consumption by lowering the current value.

又、ロックギヤ(3)の側面にストッパを突設し、揺動
枠(4)に該ストッパの回動軌跡に臨むようにストッパ
を突設しても良いが、実施例では、揺動枠(4)に、ロ
ックギヤ(3)より少許歯数の多いサブギヤ(13を該
ロックギヤ(3)に咬合して設けると共に、該両ギヤ(
3)■の側面に各1個のストッパ(141をこれらスト
ッパ(+@(1@の回動軌跡がオーバラップするように
突設した。そして、リールギヤ(2)がベルト引出し方
向に回動されたときのロックギヤ(3)の回転方向を正
転方向として、ロックギヤ(3)のストッパ(l@とサ
ブギヤ■のストッパ(+41とが当接してロックギヤ(
3)の逆転が阻止された状態(第1図で実線水の状態)
から、シートベルトを引出すことでリールギヤ(2)を
介してロックギヤ(3)が正転されると共に該ロックギ
ヤ(3)を介してサブギヤ03が回転し、ロックギヤ(
3)が複数回回転して上記と同位相となる直前で第1図
で仮想線で示すようにストッパ(1@(IΦ同士が当接
し、ロックギヤ(3)の正転が阻止されるようにして、
シートベルトを充分な長さ引出せるようにした。
Alternatively, a stopper may be provided protruding from the side surface of the lock gear (3), and the stopper may be provided protruding from the swing frame (4) so as to face the rotation locus of the stopper. 4), a sub-gear (13) having a slightly larger number of teeth than the lock gear (3) is provided in mesh with the lock gear (3), and both gears (
3) One stopper (141) was provided on each side of ■ so that the rotation loci of these stoppers (+@(1@) overlapped.Then, the reel gear (2) was rotated in the belt drawing direction. The rotation direction of the lock gear (3) when
3) state where the reversal is prevented (solid line water state in Figure 1)
When the seat belt is pulled out, the lock gear (3) is rotated in the normal direction via the reel gear (2), and the sub gear 03 is also rotated via the lock gear (3).
Immediately before the lock gear (3) rotates multiple times and reaches the same phase as above, the stoppers (1@(IΦ) come into contact with each other, as shown by the imaginary line in Figure 1, and the forward rotation of the lock gear (3) is prevented. hand,
The seat belt can be pulled out a sufficient length.

又、前記サブギヤa3を揺動枠(4)の支軸(6)に回
動自在に支持させ、該サブギヤOeを該揺動枠(4)に
軸支する専用の支軸を省略し得るようにした。
Further, the sub-gear a3 is rotatably supported on the support shaft (6) of the swing frame (4), so that a dedicated support shaft for pivotally supporting the sub-gear Oe on the swing frame (4) can be omitted. I made it.

図面で09はサブギヤq3をリールギヤ(2)のベルト
巻取り方向の回転と同方向に付勢するばね、0Gはシー
トベルトのリターンスプリングを示す。
In the drawings, 09 indicates a spring that urges the sub gear q3 in the same direction as the belt winding direction of the reel gear (2), and 0G indicates a seat belt return spring.

(発明の効果) 本発明は、上記の如く構成したので以下の如き効果を奏
する。
(Effects of the Invention) Since the present invention is constructed as described above, the present invention has the following effects.

請求項1の発明によれば、揺動枠の解除位置からの咬合
位置への揺動によりロックギヤをリールギヤに該咬合位
置の手前で咬合してリールギヤをベルト引出し方向に回
動し、シートベルトに所定の弛みを付けた状態に保持で
きるため、乗員のシートベルトによる圧迫感を回避でき
ると共に、揺動枠を咬合位置に揺動するだけで済み操作
が的単になる効果を有する。
According to the invention of claim 1, by swinging the swing frame from the release position to the occlusion position, the lock gear engages with the reel gear in front of the occlusion position, and the reel gear is rotated in the belt withdrawal direction, thereby causing the seat belt to be attached to the seat belt. Since the seat belt can be maintained in a predetermined slack state, it is possible to avoid the occupant's feeling of pressure caused by the seat belt, and the operation becomes more precise as the swing frame only needs to swing to the occlusal position.

請求項2の発明によれば、リールギヤにロックギヤを咬
合した状態でシートベルトを充分な長さ引出すことがで
きると共に、リールギヤとロックギヤとサブギヤとの3
枚のギヤ構成なことから部品点数の削減が図れ且つ装置
の構造を簡素化できる効果を有する。
According to the invention of claim 2, the seat belt can be pulled out for a sufficient length with the lock gear engaged with the reel gear, and the three parts of the reel gear, lock gear, and sub gear can be pulled out.
Since it has a single gear configuration, it has the effect of reducing the number of parts and simplifying the structure of the device.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明装置の1例を示す面断正面図、第2図及
び第3図は夫々第1図の■−■線及び■−■線截線面断
面図4図はその分解斜視図、第5図はロックギヤがリー
ルギヤに咬合位置の手前で咬合した状態を示す正面図、
第6図はソレノイドの制御回路図である。 (1)・・・リール軸 (2)・・・リールギヤ (3)・・・ロックギヤ (4)・・・揺動枠 (6)・・・支 軸 a3・・・サブギヤ (lψ(7Φ・・・ストツパ 特 許 出 願 人  本田技研工業株式会社代   
  理     人   北   村   欣   −
第2図 第6図
Fig. 1 is a sectional front view showing an example of the device of the present invention, Figs. 2 and 3 are sectional views taken along the lines ■-■ and ■-■ in Fig. 1, respectively, and Fig. 4 is an exploded perspective view thereof. Figure 5 is a front view showing a state in which the lock gear is engaged with the reel gear in front of the engagement position;
FIG. 6 is a solenoid control circuit diagram. (1)... Reel shaft (2)... Reel gear (3)... Lock gear (4)... Swing frame (6)... Support shaft a3... Sub gear (lψ (7Φ...・Stoppa patent applicant: Honda Motor Co., Ltd.
Professor Kin Kitamura −
Figure 2 Figure 6

Claims (1)

【特許請求の範囲】 1、ベルト巻取リールのリール軸にリールギヤを固設し
、該リールギヤに咬合してこれのベルト引出し方向への
回動を許容しベルト巻取方向への回動を阻止するロック
ギヤを揺動枠に軸着して、該揺動枠を、支軸を中心に該
ロックギヤが該リールギヤに咬合する咬合位置と、該ロ
ックギヤが該リールギヤから離脱する解除位置とに揺動
自在とするシートベルト巻取装置において、該ロックギ
ヤを該揺動枠に、該咬合位置において該リールギヤの中
心と該支軸の中心とを通る直線上に該ロックギヤの中心
が略合致するように取付け、該揺動枠を該解除位置から
該咬合位置に揺動したとき該咬合位置の手前で該ロック
ギヤが該リールギヤに咬合し始めて該リールギヤをベル
ト引出し方向に回動するように構成したことを特徴とす
るシートベルト巻取装置。 2、前記揺動枠に、前記ロックギヤと歯数の異なるサブ
ギヤを該ロックギヤに咬合して設けると共に、該両ギヤ
の側面に各1個のストッパをこれらストッパの回動軌跡
がオーバラップするように突設したことを特徴とする請
求項1記載のシートベルト巻取装置。
[Scope of Claims] 1. A reel gear is fixed to the reel shaft of the belt take-up reel, and is engaged with the reel gear to allow rotation in the belt pull-out direction and prevent rotation in the belt wind-up direction. A lock gear is pivotally attached to a swing frame, and the swing frame is freely swingable about a support shaft between an engagement position where the lock gear engages with the reel gear and a release position where the lock gear separates from the reel gear. In the seat belt retractor, the lock gear is mounted on the swing frame such that the center of the lock gear substantially coincides with a straight line passing through the center of the reel gear and the center of the support shaft at the occlusion position, When the swing frame is swung from the release position to the engagement position, the lock gear starts to engage the reel gear before the engagement position, and the reel gear is rotated in the belt drawing direction. Seatbelt retractor. 2. A sub-gear having a different number of teeth than the lock gear is provided on the swing frame so as to mesh with the lock gear, and one stopper is provided on each side of both gears so that the rotation loci of these stoppers overlap. The seat belt retractor according to claim 1, characterized in that the seat belt retractor is provided in a protruding manner.
JP63249027A 1988-10-04 1988-10-04 Seat belt takeup device Pending JPH0299443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63249027A JPH0299443A (en) 1988-10-04 1988-10-04 Seat belt takeup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63249027A JPH0299443A (en) 1988-10-04 1988-10-04 Seat belt takeup device

Publications (1)

Publication Number Publication Date
JPH0299443A true JPH0299443A (en) 1990-04-11

Family

ID=17186917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63249027A Pending JPH0299443A (en) 1988-10-04 1988-10-04 Seat belt takeup device

Country Status (1)

Country Link
JP (1) JPH0299443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535551A2 (en) * 1991-10-03 1993-04-07 Autoliv Development Ab Self locking seat belt retractor with switching retractor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535551A2 (en) * 1991-10-03 1993-04-07 Autoliv Development Ab Self locking seat belt retractor with switching retractor

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