JPH10309967A - Seat for vehicle - Google Patents
Seat for vehicleInfo
- Publication number
- JPH10309967A JPH10309967A JP9120672A JP12067297A JPH10309967A JP H10309967 A JPH10309967 A JP H10309967A JP 9120672 A JP9120672 A JP 9120672A JP 12067297 A JP12067297 A JP 12067297A JP H10309967 A JPH10309967 A JP H10309967A
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- collision
- seat cushion
- wire
- rotating shaft
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
- B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
- B60N2/4221—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the front
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
- B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
- B60N2/42763—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion with anti-submarining systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
- B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、乗員が着座する車
両用のシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat on which an occupant sits.
【0002】[0002]
【従来の技術】従来、衝突対策として、衝突時に作動す
るアクチュエータを設け、アクチュエータの作動により
シートクッションの前端部を押上げるようにした車両用
シートが特公昭51−27052号公報と実公平7−2
7240号公報により知られている。特公昭51−27
052号公報に記載のものは、シートクッションの前端
部をシートクッション本体から分離し、衝突時に伸長動
作するシリンダ型の左右1対のアクチュエータによりシ
ートクッションの前端部を押上げるようにしている。2. Description of the Related Art Conventionally, as a countermeasure against a collision, a vehicle seat provided with an actuator that operates at the time of a collision and pushing up a front end of a seat cushion by the operation of the actuator is disclosed in Japanese Patent Publication No. 51-27052 and Japanese Utility Model Publication No. Sho. 2
It is known from US Pat. Tokiko Sho 51-27
In the vehicle described in Japanese Patent Publication No. 052, the front end of the seat cushion is separated from the seat cushion body, and the front end of the seat cushion is pushed up by a pair of left and right actuators of a cylinder type which extend and operate at the time of collision.
【0003】また、実公平7−27240号公報に記載
のものでは、シートクッションをシートのベースプレー
ト上に前上り傾動可能となるように軸支し、シートクッ
ションの前端部下面に左右1対のラックを垂設すると共
に、ベースプレート上にアクチュエータの作動でワイヤ
を介して回転される横長の回転軸を軸支し、回転軸の両
端に前記両ラックに噛合するピニオンを設け、ピニオン
の回転でシートクッションの前端部を押上げ、シートク
ッションを前上りに傾動させるようにしている。In Japanese Unexamined Utility Model Publication No. 7-27240, a seat cushion is pivotally supported on a base plate of a seat so that the seat cushion can be tilted forward and upward. And a pinion that meshes with both racks is provided at both ends of the rotation shaft, and a seat cushion is provided by rotation of the pinion. Is pushed up to incline the seat cushion upward.
【0004】[0004]
【発明が解決しようとする課題】上記前者の従来例は、
シートクッションの前端部をアクチュエータで直接押上
げる直動式であるため、左右のバランスを取るために2
個のアクチュエータが必要になってコストが高くなる不
具合がある。SUMMARY OF THE INVENTION The former conventional example is as follows.
Since the front end of the seat cushion is a direct-acting type that is directly pushed up by an actuator, two
There is a problem that the cost increases due to the necessity of two actuators.
【0005】一方、上記後者の従来例は、直動式でない
ためアクチュエータは1個で足りるが、衝突時にピニオ
ンが瞬間的に高速回転させられるため、ピニオンとラッ
クの噛合箇所の歯折れや歯飛びを生じ易く、信頼性に欠
ける不具合がある。On the other hand, in the latter conventional example, only one actuator is sufficient because it is not a direct-acting type. Liable to occur and lack reliability.
【0006】本発明は、以上の点に鑑み、衝突時にシー
トクッションの前端部を確実に押上げられるようにした
信頼性の高い低コストの車両用シートを提供することを
課題としている。SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a highly reliable and low-cost vehicle seat capable of reliably pushing up the front end of a seat cushion in a collision.
【0007】[0007]
【課題を解決するための手段】上記課題を解決すべく、
本発明は、衝突時に作動するアクチュエータを設け、ア
クチュエータの作動によりシートクッションの前端部を
押上げるようにした車両用シートにおいて、アクチュエ
ータの作動によりワイヤを介して回転される横長の回転
軸の両端にカム部材を設け、カム部材の回転でシートク
ッションの前端部を押上げるようにしている。Means for Solving the Problems In order to solve the above problems,
The present invention provides an actuator that operates in the event of a collision, and in a vehicle seat in which the front end of the seat cushion is pushed up by the operation of the actuator, the vehicle is provided at both ends of a horizontally long rotating shaft that is rotated via a wire by the operation of the actuator. A cam member is provided, and the front end of the seat cushion is pushed up by rotation of the cam member.
【0008】本発明によれば、衝突時にアクチュエータ
の作動による回転軸の回転でカム部材を介してシートク
ッションの前端部が押上げられる。このように、本発明
は、直動式でないためアクチュエータは1個で良く、更
に、ラックピニオン機構を用いるものに比し構造が簡単
で、且つ、歯折れや歯飛びといった故障も生じにくく、
コストを安くして信頼性を向上できる。According to the present invention, at the time of collision, the front end of the seat cushion is pushed up via the cam member by the rotation of the rotating shaft by the operation of the actuator. As described above, the present invention is not a direct-acting type, so that only one actuator is required. Furthermore, the structure is simpler than that using the rack and pinion mechanism, and failures such as tooth breakage and tooth skipping are less likely to occur.
Cost can be reduced and reliability can be improved.
【0009】[0009]
【発明の実施の形態】図1は車両用シートのシートクッ
ションを示している。シートクッションは、本体部1と
前端のレッグサポート部2と左右のサイドサポート部
3,3とに4分割されており、これらを図2に示すベー
スプレート4上に配置してシートクッションを構成して
いる。FIG. 1 shows a seat cushion of a vehicle seat. The seat cushion is divided into four parts: a body part 1, a leg support part 2 at the front end, and left and right side support parts 3 and 3, and these are arranged on a base plate 4 shown in FIG. 2 to constitute a seat cushion. .
【0010】本体部1は、図外のパッドと、パッドを支
持するワイヤスプリング1aを張設したボトムフレーム
1bとで構成されている。そして、ボトムフレーム1b
の後端部を横方向の支軸1cを介してベースプレート4
に軸支し、本体部1を前上りに傾動自在としている。
尚、左右のサイドサポート部3,3はベースプレート4
の左右のフランジ4a,4a上に固定される。The main body 1 includes a pad (not shown) and a bottom frame 1b on which a wire spring 1a for supporting the pad is stretched. And the bottom frame 1b
The rear end of the base plate 4 via the lateral support shaft 1c.
And the main body 1 can be tilted upward.
The left and right side support parts 3, 3 are base plate 4
On the left and right flanges 4a, 4a.
【0011】レッグサポート部2は、図外のパッドと、
パッドを支持するボトムプレート2aとで構成されてい
る。そして、ボトムプレート2aの下面に、図3に示す
如く、左右1対のガイドスリーブ2b,2bを垂設し、
一方、ベースプレート4の前端のフランジ4bの下面に
スティフナ4cを取付けて、スティフナ4cに左右1対
のガイドピン4d,4dを植設し、各ガイドスリーブ2
bを各ガイドピン4dにフランジ4bに形成した各透孔
4eを通して摺動自在に外嵌させ、レッグサポート部2
を上下動自在に支持している。尚、ボトムプレート2a
には本体部1用のワイヤスプリング1aの前端が連結さ
れており、レッグサポート部2の上動で本体部1がワイ
ヤスプリング1aを介して前上りに傾動されるようにし
ている。The leg support 2 includes a pad (not shown),
And a bottom plate 2a for supporting the pads. Then, as shown in FIG. 3, a pair of left and right guide sleeves 2b, 2b is vertically provided on the lower surface of the bottom plate 2a.
On the other hand, a stiffener 4c is attached to the lower surface of the flange 4b at the front end of the base plate 4, and a pair of left and right guide pins 4d is implanted in the stiffener 4c.
b is slidably fitted to each guide pin 4d through each through hole 4e formed in the flange 4b, and the leg support portion 2
Is supported so that it can move up and down. In addition, the bottom plate 2a
Is connected to the front end of a wire spring 1a for the main body 1, so that the main body 1 is tilted forward by the upward movement of the leg support 2 via the wire spring 1a.
【0012】また、ベースプレート4の前端のフランジ
4b上には、両端にカム部材5,5を設けた横長の回転
軸6が配置されている。各カム部材5は、図4に示す如
く、ベース円部5aとカムトップ部5bとを有する卵形
に形成されており、フランジ4bの上面に凹設した溝形
状のカム受け部4fに横ずれしないように係合してい
る。カム部材5は、常時は、カムトップ部5bが前方を
向く前向き姿勢に保持されている。この状態では、レッ
グサポート部2のボトムプレート2aの下面がカム部材
5のベース円部5aに上方から当接して、レッグサポー
ト部2は通常の位置に支持される。On the flange 4b at the front end of the base plate 4, a horizontally long rotating shaft 6 provided with cam members 5 at both ends is disposed. As shown in FIG. 4, each cam member 5 is formed in an oval shape having a base circle portion 5a and a cam top portion 5b, and does not laterally shift to a groove-shaped cam receiving portion 4f recessed on the upper surface of the flange 4b. Is engaged. The cam member 5 is normally held in a forward posture in which the cam top portion 5b faces forward. In this state, the lower surface of the bottom plate 2a of the leg support portion 2 comes into contact with the base circle portion 5a of the cam member 5 from above, and the leg support portion 2 is supported at a normal position.
【0013】ベースプレート4には、衝突時に点火され
る火薬を内蔵するシリンダ型のアクチュエータ7が設け
られており、該アクチュエータ7から導出されるワイヤ
8を回転軸6に巻回している。アクチュエータ7は、衝
突時に内蔵火薬の点火でワイヤ8を引き込むように作動
する。The base plate 4 is provided with a cylinder-type actuator 7 having a built-in explosive to be ignited at the time of a collision, and a wire 8 derived from the actuator 7 is wound around a rotary shaft 6. The actuator 7 operates to pull the wire 8 by ignition of the built-in explosive at the time of a collision.
【0014】かくて、衝突時には、アクチュエータ7の
作動によりワイヤ8を介して回転軸6が回転され、カム
部材5が前向き姿勢から上向き姿勢に回転して、図4
(B)に示す如くカムトップ部5bがボトムプレート2
aの下面に当接し、レッグサポート部2が押上げられる
と共に、ワイヤスプリング1aを介して本体部1が前上
りに傾動される。Thus, at the time of a collision, the rotation shaft 6 is rotated via the wire 8 by the operation of the actuator 7, and the cam member 5 is rotated from the forward posture to the upward posture.
(B) As shown in FIG.
a, the leg support portion 2 is pushed up, and the main body portion 1 is tilted forward and upward via the wire spring 1a.
【0015】尚、レッグサポート部2を本体部1と一体
化して、シートクッション全体を前上りに傾動させるよ
うにしても良く、逆に、レッグサポート部2を本体部1
から完全に分離し、本体部1を傾動不能としてレッグサ
ポート部2のみを押上げるようにしても良い。The leg support 2 may be integrated with the main body 1 so that the entire seat cushion is tilted upward.
, The main body 1 may not be tilted, and only the leg support 2 may be pushed up.
【0016】[0016]
【発明の効果】以上の説明から明らかなように、本発明
によれば、衝突時にシートクッションの前端部を確実に
押上げることができ、信頼性が向上すると共に、構造が
簡単でアクチュエータも1個で足り、コストを安くでき
る。As is apparent from the above description, according to the present invention, the front end of the seat cushion can be reliably pushed up in the event of a collision, and the reliability is improved. Individuals are sufficient and costs can be reduced.
【図1】 本発明を適用する車両用シートのショートク
ッションの斜視図FIG. 1 is a perspective view of a short cushion of a vehicle seat to which the present invention is applied.
【図2】 図1のシートクッションのパッドを取外した
状態の斜視図FIG. 2 is a perspective view of the seat cushion of FIG. 1 with a pad removed;
【図3】 図2のIII−III線拡大截断面図FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 2;
【図4】 (A)カム部材の配置部を示す斜視図、
(B)衝突時の状態を示す要部の斜視図FIG. 4A is a perspective view showing an arrangement portion of a cam member.
(B) Perspective view of main part showing state at the time of collision
2 レッグサポート部(シートクッションの前端部) 5 カム部材 6 回転軸 7 アクチュエータ 8 ワイヤ 2 Leg support (front end of seat cushion) 5 Cam member 6 Rotary shaft 7 Actuator 8 Wire
Claims (1)
け、アクチュエータの作動によりシートクッションの前
端部を押上げるようにした車両用シートにおいて、 アクチュエータの作動によりワイヤを介して回転される
横長の回転軸の両端にカム部材を設け、カム部材の回転
でシートクッションの前端部を押上げるようにした、 ことを特徴とする車両用シート。1. A vehicle seat provided with an actuator that operates in the event of a collision, wherein the front end of a seat cushion is pushed up by the operation of the actuator. Both ends of a horizontally long rotating shaft that is rotated via a wire by the operation of the actuator. A seat member for a vehicle, wherein a front end portion of a seat cushion is pushed up by rotation of the cam member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12067297A JP3904664B2 (en) | 1997-05-12 | 1997-05-12 | Vehicle seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12067297A JP3904664B2 (en) | 1997-05-12 | 1997-05-12 | Vehicle seat |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10309967A true JPH10309967A (en) | 1998-11-24 |
JP3904664B2 JP3904664B2 (en) | 2007-04-11 |
Family
ID=14792083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12067297A Expired - Fee Related JP3904664B2 (en) | 1997-05-12 | 1997-05-12 | Vehicle seat |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3904664B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1371518A1 (en) * | 2002-06-12 | 2003-12-17 | Takata Corporation | Occupant protecting device |
US6715788B2 (en) | 1999-12-28 | 2004-04-06 | Takata Corporation | Passenger protecting apparatus |
EP1612095A2 (en) | 2004-06-28 | 2006-01-04 | Aisin Seiki Kabushiki Kaisha | Apparatus for protecting a vehicle occupant |
US7031814B2 (en) | 2004-06-22 | 2006-04-18 | Aisin Seiki Kabushiki Kaisha | Occupant protection apparatus for vehicle |
JP2009096423A (en) * | 2007-10-19 | 2009-05-07 | Namba Press Works Co Ltd | Vehicular seat with thigh support |
JP2009190566A (en) * | 2008-02-14 | 2009-08-27 | Takata Corp | Occupant constraining device, vehicle seat, and vehicle |
US11072265B2 (en) * | 2019-09-18 | 2021-07-27 | Lear Corporation | Vehicle seat assembly with front seat pan height adjustment mechanism |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101746450B1 (en) * | 2015-09-18 | 2017-06-27 | 현대자동차주식회사 | Structure of active pan for anti-submarine |
US11021090B2 (en) | 2019-09-27 | 2021-06-01 | Lear Corporation | Seat assembly with leg support |
-
1997
- 1997-05-12 JP JP12067297A patent/JP3904664B2/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6715788B2 (en) | 1999-12-28 | 2004-04-06 | Takata Corporation | Passenger protecting apparatus |
US6905134B2 (en) | 1999-12-28 | 2005-06-14 | Takata Corporation | Passenger protecting apparatus |
US7021655B2 (en) | 1999-12-28 | 2006-04-04 | Takata Corporation | Passenger protecting apparatus |
EP1371518A1 (en) * | 2002-06-12 | 2003-12-17 | Takata Corporation | Occupant protecting device |
US6863298B2 (en) | 2002-06-12 | 2005-03-08 | Takata Corporation | Occupant protecting device |
US7031814B2 (en) | 2004-06-22 | 2006-04-18 | Aisin Seiki Kabushiki Kaisha | Occupant protection apparatus for vehicle |
EP1612095A2 (en) | 2004-06-28 | 2006-01-04 | Aisin Seiki Kabushiki Kaisha | Apparatus for protecting a vehicle occupant |
JP2009096423A (en) * | 2007-10-19 | 2009-05-07 | Namba Press Works Co Ltd | Vehicular seat with thigh support |
JP2009190566A (en) * | 2008-02-14 | 2009-08-27 | Takata Corp | Occupant constraining device, vehicle seat, and vehicle |
US11072265B2 (en) * | 2019-09-18 | 2021-07-27 | Lear Corporation | Vehicle seat assembly with front seat pan height adjustment mechanism |
Also Published As
Publication number | Publication date |
---|---|
JP3904664B2 (en) | 2007-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4632456A (en) | Children's automobile-mounted safety seat | |
JPH10309967A (en) | Seat for vehicle | |
JPH1118864A (en) | Reclining mechanism | |
JPH0249730U (en) | ||
JP4254374B2 (en) | Side support device for vehicle seat | |
JP4639747B2 (en) | Storage sheet | |
JP2755149B2 (en) | Seat for flip-up vehicle | |
JPH0329051U (en) | Lumbar support device | |
JPH0625153Y2 (en) | Seat back support structure | |
JPH1086706A (en) | Seat for vehicle | |
JP3673699B2 (en) | Seat reclining structure | |
JP3712916B2 (en) | Three-seat seat | |
JPH11237A (en) | Arm rest for vehicle | |
JP5167842B2 (en) | Vehicle seat device | |
JP3018593B2 (en) | Seat reclining device | |
JPH0421321Y2 (en) | ||
JP3982006B2 (en) | Full flat foldable seat | |
JPH08119011A (en) | Vertical movement device of cushion seat | |
JP2000233674A (en) | Vehicle seat | |
JP3190778B2 (en) | Seat reclining device | |
JP2576479B2 (en) | Seat back spring structure for automotive seat | |
JP3271505B2 (en) | Rear seat device for vehicles | |
JPH0218740Y2 (en) | ||
JPH04118053U (en) | Torsion bar mounting structure for automobile seats | |
JPH0512100Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060727 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060829 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061019 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20061212 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070110 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |