JPH0217366B2 - - Google Patents
Info
- Publication number
- JPH0217366B2 JPH0217366B2 JP57093484A JP9348482A JPH0217366B2 JP H0217366 B2 JPH0217366 B2 JP H0217366B2 JP 57093484 A JP57093484 A JP 57093484A JP 9348482 A JP9348482 A JP 9348482A JP H0217366 B2 JPH0217366 B2 JP H0217366B2
- Authority
- JP
- Japan
- Prior art keywords
- link
- gear
- lower arm
- seat pan
- rotatably
- 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
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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
- B60N2/161—Rods
- B60N2/1615—Parallelogram-like structure
-
- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
- B60N2/165—Gear wheel driven mechanism
-
- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/168—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable and provided with braking systems
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Description
【発明の詳細な説明】
本発明は、シートの上下方向の調整を行うため
のシート上下調整装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat vertical adjustment device for vertically adjusting a seat.
従来のこの種の装置では、外接平歯車の一方の
歯車に操作ハンドルの回動力を与え、他方の歯車
の回転をリンクを介してシートパンに与え、シー
トを上下させている。このため、減速比を大きく
とると、従動側の歯車が大きなものとなり、多大
な設置スペースを要するという問題があつた。 In a conventional device of this type, the rotating force of the operating handle is applied to one of the circumscribed spur gears, and the rotation of the other gear is applied to the seat pan via a link to move the seat up and down. Therefore, when the reduction ratio is increased, the gear on the driven side becomes large and requires a large amount of installation space, which is a problem.
本発明は、この点に鑑みてなされたもので、遊
星歯車列を利用することにより、上述の問題を解
決し、小さな設置スペースで足りるシート上下調
整装置を実現したものである。 The present invention has been made in view of this point, and uses a planetary gear train to solve the above-mentioned problems and realize a seat vertical adjustment device that requires only a small installation space.
以下、本発明の一実施例を図面を用いて詳細に
説明する。 Hereinafter, one embodiment of the present invention will be described in detail using the drawings.
第１図乃至第３図において、１は操作ハンド
ル、２はケース、３はケース２内に嵌挿されたコ
イルスプリングである。コイルスプリング３の自
然状態における外径は、ケース２の内径よりやや
大きく選ばれている。このため、コイルスプリン
グ３は、組付状態において、ケース２の内面を押
圧している。４はコアで、その切欠部が成る空間
にコイルスプリング３の曲折端部３ａ，３ｂが位
置するように、コイルスプリング３（ケース２）
内に緩挿されている（第３図参照）。５は中央の
貫通孔５ａにコア４のシヤフト４ａが回動自在に
挿通された外歯歯車で、この歯車５には、ピニオ
ンプレート６が一体的に固着されている。尚、こ
のピニオンプレートの曲折部６ａは、コイルスプ
リング３の曲折部３ａ，３ｂ間に位置している
（第３図参照）。上記ケース２は、コイルスプリン
グ３、コア４、歯車５及びピニオンプレート６を
収納した状態で、リクライニング装置のロアーア
ーム７に取り付けられるが、その具体的取付は、
ロアーアーム７に形成した円孔７ａに、歯車５を
挿通後、ケース２の３箇所の円筒状突起部２ａを
ロアーアーム７の３つの円孔７ｂに挿通し、先端
を押し広げることによつて行う。前記操作ハンド
ル１は、コア４のセレーシヨンが切られた端部４
ｂに取り付けられ、止め輪８にてその抜け止めが
なされる。 In FIGS. 1 to 3, 1 is an operating handle, 2 is a case, and 3 is a coil spring inserted into the case 2. As shown in FIGS. The outer diameter of the coil spring 3 in its natural state is selected to be slightly larger than the inner diameter of the case 2. Therefore, the coil spring 3 presses against the inner surface of the case 2 in the assembled state. 4 is a core, and the coil spring 3 (case 2) is inserted so that the bent ends 3a and 3b of the coil spring 3 are located in the space formed by the notch.
(See Figure 3). Reference numeral 5 designates an external gear in which a shaft 4a of a core 4 is rotatably inserted into a central through hole 5a, and a pinion plate 6 is integrally fixed to this gear 5. The bent portion 6a of the pinion plate is located between the bent portions 3a and 3b of the coil spring 3 (see FIG. 3). The case 2 is attached to the lower arm 7 of the reclining device while housing the coil spring 3, core 4, gear 5, and pinion plate 6, but the specific installation is as follows.
After the gear 5 is inserted into the circular hole 7a formed in the lower arm 7, the three cylindrical protrusions 2a of the case 2 are inserted into the three circular holes 7b of the lower arm 7, and the tips are pushed apart. The operating handle 1 has a serrated end 4 of the core 4.
b, and is prevented from coming off with a retaining ring 8.
９はロアーアーム７の貫通孔７ａから突出した
歯車５と噛合する遊星歯車で、該歯車９には、更
に内歯歯車１０が噛合している。歯車１０は、シ
ートの必要リフト量を確保するのに十分な大きさ
に切出され、ロアーアーム７に溶接等で固着され
る。尚、上記歯車５，９及び１０はギヤカバー１
１で覆われる。１２は第１のリンクで、角部の貫
通孔１２ａには、ギヤカバー１１の貫通孔１１ａ
から突出したコア４のシヤフト４ａがウエブワツ
シヤ１３を介して回動自在に挿通され、又、一端
側の貫通孔１２ｂには、ブツシユ１４が押し込ま
れている。１５はナツト１６によつてシートパン
１７の側部に固着される揺動シヤフトで、その一
端は、ブツシユ１４、ワツシヤ１８及び歯車９の
回転中心に回動自在に挿通され、又、このシヤフ
ト１５が揺動できるように、ギヤカバー１１に
は、円弧状の長穴１１ｂが穿設されている。１９
はリンク１２と同様の形状の第２のリンクで、中
央の角部はロアーアーム７に枢着され、一端はシ
ートパン１７に枢着される。このリンク１９とリ
ンク１２とは、平行クランク機構を構成するよう
に、第３のリンク２０で連結されている。シート
パン１７の反対側側面にも、リンク１２と同様の
形状のリンク２１及び２２並びにこれらリンク２
１，２２を連結して平行クランク機構を構成する
ためのリンク２３が配設されている。リンク２
１，２２の装着状態は、リンク１９の場合と同様
である。尚、リンク１２とリンク２１とは、トル
ク伝達用のロツド２４で一体的に結合されてい
る。 A planetary gear 9 meshes with the gear 5 protruding from the through hole 7a of the lower arm 7, and an internal gear 10 further meshes with the gear 9. The gear 10 is cut to a size sufficient to ensure the required lift amount of the seat, and is fixed to the lower arm 7 by welding or the like. In addition, the gears 5, 9 and 10 mentioned above are the gear cover 1.
Covered by 1. 12 is the first link, and the through hole 12a at the corner is connected to the through hole 11a of the gear cover 11.
The shaft 4a of the core 4 protruding from the core 4 is rotatably inserted through the web washer 13, and a bush 14 is pushed into the through hole 12b at one end. A rocking shaft 15 is fixed to the side of the seat pan 17 by a nut 16, and one end of the shaft 15 is rotatably inserted through the center of rotation of the bush 14, washer 18, and gear 9. The gear cover 11 is provided with an arc-shaped elongated hole 11b so that the gear cover 11 can swing. 19
is a second link having the same shape as the link 12, a central corner portion of which is pivotally connected to the lower arm 7, and one end of which is pivotally connected to the seat pan 17. The link 19 and the link 12 are connected by a third link 20 so as to constitute a parallel crank mechanism. Also on the opposite side of the seat pan 17 are links 21 and 22 having the same shape as the link 12, and these links 2.
A link 23 is provided to connect the crankshafts 1 and 22 to form a parallel crank mechanism. Link 2
The attachment state of links 1 and 22 is the same as that of link 19. Incidentally, the link 12 and the link 21 are integrally connected by a rod 24 for torque transmission.
次に本発明装置の作動を説明する。まず、操作
ハンドル１に時計方向（第１図の矢印方向）の回
動力を与えると、コイルスプリング３の曲折端部
３ａに、コイルスプリング３の外径を縮小させる
方向の力が働き、コア４は自由に回動し、その回
動は歯車５に伝えられる。 Next, the operation of the device of the present invention will be explained. First, when a clockwise rotational force is applied to the operating handle 1 (in the direction of the arrow in FIG. 1), a force is applied to the bent end 3a of the coil spring 3 in the direction of reducing the outer diameter of the coil spring 3, and rotates freely, and the rotation is transmitted to gear 5.
ここで、歯車５の回転数をn1、リンク１２の回
転数をn0とすると、
n0＝n1・z1／（z1＋z2）
但し、z1…歯車５の歯数
z2…歯車１０の歯数（切出し前の完全な状態で
の歯数）
が成り立つ。従つて、リンク１２は第１図の時計
方向に回動し、シートパン１７が下降する。逆
に、操作ハンドル１に第１図の反時計方向の回動
力を与えると、歯車５に上記と逆方向の回動力が
伝えられ、シートパン１７は上昇する。次に、歯
車５側からコイルスプリング３に回動力が加わつ
た場合の作動を説明すると、歯車５側からの回動
力がいずれの方向のものであつても、この力はコ
イルスプリング３の外径を増大させる方向に作用
する。このため、ケース２とコイルスプリング３
との間の摩擦力が増大し、歯車５はいずれの方向
にも回動できず、結局歯車５も回動できない。従
つて、リンク１２がシートパン１７からいかなる
力を受けようとも、操作ハンドル１を操作しない
限り、シートパン１７は一定の位置を保持する。 Here, if the rotation speed of the gear 5 is n 1 and the rotation speed of the link 12 is n 0 , then n 0 = n 1・z 1 / (z 1 + z 2 ) However, z 1 ... Number of teeth of the gear 5 z 2 ...The number of teeth of gear 10 (the number of teeth in the complete state before cutting out) holds true. Therefore, the link 12 rotates clockwise in FIG. 1, and the seat pan 17 descends. Conversely, when a rotational force is applied to the operating handle 1 in the counterclockwise direction shown in FIG. 1, the rotational force in the opposite direction is transmitted to the gear 5, and the seat pan 17 is raised. Next, to explain the operation when rotational force is applied to the coil spring 3 from the gear 5 side, no matter which direction the rotational force is applied from the gear 5 side, this force is applied to the outer diameter of the coil spring 3. It acts in the direction of increasing. For this reason, case 2 and coil spring 3
The frictional force between the two increases, and the gear 5 cannot rotate in any direction, and in the end, the gear 5 cannot rotate either. Therefore, no matter what force the link 12 receives from the seat pan 17, the seat pan 17 maintains a constant position unless the operating handle 1 is operated.
尚、シートパン１７の前方側を後方側よりも多
くリフトさせたい場合或いはその逆の場合には、
第４図のl2、L2を、l2＞L2或いはl2＜L2に選べば
よい。しかし、このように選択すると、l1，L1の
揺動先端部（リンク１２，１９の貫通孔１２ｂ，
１９ａの中心）が異なる動きをするため、両者の
間隔の変化を吸収する必要がある。そこで、第４
図の構成では、第５図に示す如き構造のシートパ
ンリテーナ３０でもつてリンク１９，２２を支持
している。尚、第５図中の３１はゴムや弾性ポリ
エステル等でなるワツシヤ、３２，３３はそれぞ
れリテーナ３０をシートパン１７へ取り付けるた
めのボルト、ナツト、３４はＬ字形に折り曲げら
れたリテーナ３０の下部取付部分である。このよ
うなリテーナ３０を用いれば、リテーナ３０が傾
動可能なため、上記間隔の変化を吸収できる。
又、上記弾性ワツシヤ３１の断面形状を第６図の
ようにすれば、間隔変化の吸収量を更に増大でき
る。 In addition, if you want to lift the front side of the seat pan 17 more than the rear side, or vice versa,
l 2 and L 2 in FIG. 4 may be selected to be l 2 >L 2 or l 2 <L 2 . However, if this selection is made, the swinging tips of l 1 and L 1 (the through holes 12b of links 12 and 19,
19a) move differently, it is necessary to absorb changes in the distance between the two. Therefore, the fourth
In the illustrated configuration, the links 19 and 22 are supported by a seat pan retainer 30 having a structure as shown in FIG. In FIG. 5, 31 is a washer made of rubber or elastic polyester, 32 and 33 are bolts and nuts for attaching the retainer 30 to the seat pan 17, and 34 is a lower part of the retainer 30 bent into an L shape. It is a part. If such a retainer 30 is used, the change in the interval can be absorbed because the retainer 30 is tiltable.
Moreover, if the cross-sectional shape of the elastic washer 31 is made as shown in FIG. 6, the amount of absorption of changes in the spacing can be further increased.
以上説明したように、本発明においては、第１
及び第２の略Ｌ字状のリンクの各下アーム部と、
第３のリンクとによつて、シートパンの側方に平
行クランク機構を構成し、シートパンを上下させ
るようにし、この平行クランク機構の１つの枢着
点をなすピンを利用して、差動歯車列の遊星歯車
をシートパンの側部に枢着し、遊星歯車の動きを
ダイレクトにシートパンの動きに変えた。よつ
て、シートパンとロアーアームとの間に収まり、
装置自体は非常にコンパクトになり、しかも、シ
ートパンの下方には何もない状態を実現できるの
で、ヒツプポイントを大きく下げることができ
る。 As explained above, in the present invention, the first
and each lower arm portion of the second substantially L-shaped link;
A parallel crank mechanism is constructed on the side of the seat pan by the third link, and the seat pan is moved up and down. The planetary gears in the gear train are pivoted to the side of the seat pan, and the movement of the planetary gears is directly converted into the movement of the seat pan. Therefore, it fits between the seat pan and the lower arm,
The device itself is extremely compact, and since there is nothing below the seat pan, hip points can be significantly lowered.
第１図は本発明の一実施例の要部を示す分解斜
視図、第２図は第１図中のブレーキ機構部分及び
その周辺部分の断面図、第３図は第２図の−
線に沿つた断面図、第４図は非平行クランク機構
での構成及び作動の説明図、第５図はシートパン
リテーナの説明図、第６図は弾性ワツシヤの断面
図である。
１……操作ハンドル、２……ケース、３……コ
イルスプリング、４……コア、５……外歯歯車、
６……ピニオンプレート、７……ロアーアーム、
９……遊星歯車、１０……内歯歯車、１１……ギ
ヤカバー、１２，１９〜２３……リンク、１５…
…揺動シヤフト、１７……シートパン。
FIG. 1 is an exploded perspective view showing the main parts of an embodiment of the present invention, FIG. 2 is a sectional view of the brake mechanism part and its surrounding parts in FIG. 1, and FIG. 3 is a -
4 is an explanatory diagram of the structure and operation of the non-parallel crank mechanism, FIG. 5 is an explanatory diagram of the seat pan retainer, and FIG. 6 is a sectional diagram of the elastic washer. 1... Operation handle, 2... Case, 3... Coil spring, 4... Core, 5... External gear,
6...Pinion plate, 7...Lower arm,
9... Planetary gear, 10... Internal gear, 11... Gear cover, 12, 19-23... Link, 15...
...Rocking shaft, 17... Seat pan.
Claims (1)
可能に設けられた操作ハンドルと、 該操作ハンドルに連設されたブレーキ機構と、 該ブレーキ機構を介して回転される外歯歯車
と、 該外歯歯車と噛合する遊星歯車と、 該遊星歯車と噛合し、上下方向に延出し、ロア
ーアーム側に固着された略円弧状の内歯歯車と、 中央の角部が前記ロアーアーム側にかつ、前記
外歯車と同軸的に回転可能に枢着され、上アーム
部の端部は前記遊星歯車が回転可能に支持された
ピンを用いてシートパンの側部に回転可能に枢着
された略Ｌ字形の第１のリンクと、 中央の角部が前記ロアーアーム側に回転可能に
枢着され、上アーム部の端部はシートパンの側部
に回転可能に枢着された略Ｌ字状の第２のリンク
と、 両端部が前記第１のリンク及び第２のリンクの
各下アーム部の端部にそれぞれ回転可能に枢着さ
れた第３のリンクとを有し、 前記ロアーアーム、前記第１、第２のリンクの
各下アーム部及び第３のリンクで平行クランク機
構を形成したことを特徴とするシート上下調整装
置。[Scope of Claims] 1. An operation handle rotatably provided on the lower arm side of the reclining device; a brake mechanism connected to the operation handle; an external gear rotated via the brake mechanism; a planetary gear that meshes with the external gear; a substantially arc-shaped internal gear that meshes with the planetary gear, extends in the vertical direction, and is fixed to the lower arm side; The upper arm is rotatably connected coaxially with the external gear, and the end of the upper arm is rotatably connected to the side of the seat pan using a pin on which the planetary gear is rotatably supported. a first link, and a substantially L-shaped second link whose central corner is rotatably connected to the lower arm side, and whose end of the upper arm is rotatably connected to the side of the seat pan. and a third link whose both ends are rotatably pivotally connected to the ends of the lower arm portions of the first link and the second link, respectively, the lower arm, the first link, A seat vertical adjustment device characterized in that a parallel crank mechanism is formed by each lower arm portion of the second link and the third link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9348482A JPS58209630A (en) | 1982-05-31 | 1982-05-31 | Vertical adjustment device for seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9348482A JPS58209630A (en) | 1982-05-31 | 1982-05-31 | Vertical adjustment device for seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58209630A JPS58209630A (en) | 1983-12-06 |
| JPH0217366B2 true JPH0217366B2 (en) | 1990-04-20 |
Family
ID=14083616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9348482A Granted JPS58209630A (en) | 1982-05-31 | 1982-05-31 | Vertical adjustment device for seat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58209630A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629001B2 (en) * | 1984-01-17 | 1994-04-20 | 日産自動車株式会社 | Seat |
| JPS6142335U (en) * | 1984-08-23 | 1986-03-18 | 白木金属工業株式会社 | Power type seat truck |
| DE102007017617B4 (en) * | 2006-11-02 | 2016-06-09 | Johnson Controls Gmbh | Adjustment of a motor vehicle seat |
| JP5827500B2 (en) | 2010-09-01 | 2015-12-02 | デルタ工業株式会社 | Seat lifter and seat |
| US9499071B2 (en) * | 2011-07-20 | 2016-11-22 | C. Rob. Hammerstein Gmbh & Co. Kg | Adjusting device for a motor vehicle seat, comprising at least one stop |
| CN106314218B (en) * | 2016-10-27 | 2018-08-17 | 延锋安道拓座椅机械部件有限公司 | Manual seat height-regulating device based on 3Z gear mechanisms |
| MX2022005228A (en) * | 2019-10-31 | 2022-06-08 | Keiper Seating Mechanisms Co Ltd | One-way damping structure and adjusting assembly comprising one-way damping structure. |
| CN110645318B (en) * | 2019-10-31 | 2025-05-02 | 恺博(常熟)座椅机械部件有限公司 | A one-way damping structure and an adjustment assembly including the one-way damping structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003204C2 (en) * | 1980-01-30 | 1985-11-14 | Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid | Brake spring clutch for adjusting gears, in particular for seat adjusting devices in motor vehicles |
| DE3026799C2 (en) * | 1980-07-15 | 1985-02-28 | Brose Fahrzeugteile GmbH & Co KG, 8630 Coburg | Gear for seat adjustment |
-
1982
- 1982-05-31 JP JP9348482A patent/JPS58209630A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58209630A (en) | 1983-12-06 |
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