JPH0284548U - - Google Patents
Info
- Publication number
- JPH0284548U JPH0284548U JP16398388U JP16398388U JPH0284548U JP H0284548 U JPH0284548 U JP H0284548U JP 16398388 U JP16398388 U JP 16398388U JP 16398388 U JP16398388 U JP 16398388U JP H0284548 U JPH0284548 U JP H0284548U
- Authority
- JP
- Japan
- Prior art keywords
- gear portion
- latch
- locking
- retaining
- movable
- 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
Links
- 230000013011 mating Effects 0.000 claims 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
図面は本考案の一実施例を示し、第１図はラン
バーサポート装置の分解斜視図、第２図はランバ
ーサポート装置を備えたシートの斜視図、第３図
はランバーサポート装置の正面図、第４図は基体
とカム部材の側面図、第５図はランバーサポート
装置がロツク状態にある時の平面図、第６図はラ
ンバーサポート装置がリリース状態にある時の平
面図である。
１……シート、２……背もたれ、３……ランバ
ーサポート装置、５……基体、３０……可動アー
ム、３５……腰椎支持部材、４０……ギヤ部、４
５……駆動シヤフト、４６……操作子、５１……
ラツチ、６０……ロツク部材、６５……アーム付
勢用ばね、７１……カム部材、７２……カム面、
７５……リターンばね。
The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of a lumbar support device, FIG. 2 is a perspective view of a seat equipped with the lumbar support device, FIG. 3 is a front view of the lumbar support device, and FIG. 4 is a side view of the base body and the cam member, FIG. 5 is a plan view when the lumbar support device is in the locked state, and FIG. 6 is a plan view when the lumbar support device is in the released state. DESCRIPTION OF SYMBOLS 1... Seat, 2... Backrest, 3... Lumbar support device, 5... Base body, 30... Movable arm, 35... Lumbar support member, 40... Gear part, 4
5... Drive shaft, 46... Operator, 51...
Latch, 60...Lock member, 65...Arm biasing spring, 71...Cam member, 72...Cam surface,
75...Return spring.
Claims (1)
腰椎支持部材が設けられている可動アームと、 上記基体に回動自在に設けられた駆動シヤフト
およびこのシヤフトに設けられた操作子と、 上記可動アームの基部に設けられたギヤ部と、 上記基体に取付けられていて上記ギヤ部に噛合
う位置からギヤ部との噛合いが外れる位置にわた
つて移動自在なラツチと、 上記ラツチの近傍に設けられていてこのラツチ
を上記ギヤ部に噛合わせた状態に保持するロツク
位置から上記ラツチがギヤ部から離れることを許
すリリース位置にわたつて移動自在なロツク部材
と、 上記可動アームが前側に回動するようにこのア
ームを付勢するアーム付勢用ばねと、 上記駆動シヤフトに固定されているとともに上
記ロツク部材と係合するカム面を有しており上記
駆動シヤフトが第１の回動位置にある時に上記ロ
ツク部材を上記ロツク位置に保持しかつ上記駆動
シヤフトが第２の位置まで回動させられた時には
上記ロツク部材を上記リリース位置に向つて移動
させるカム部材と、 上記カム部材を上記第１の回動位置の方向に付
勢するリターンばねと、 を具備したことを特徴とするランバーサポート装
置。[Claims for Utility Model Registration] A base body fixed to the lower part of the backrest of a seat; a movable arm pivotally connected to the base body so as to be rotatable in the front-back direction and provided with a lumbar support member; A freely provided drive shaft and an operator provided on this shaft, a gear portion provided at the base of the movable arm, and a gear portion attached to the base body from a position meshing with the gear portion. a latch movable through a disengagement position; and a locking position proximate said latch for retaining said latch in meshed position with said gear portion for allowing said latch to disengage from said gear portion. a locking member movable across the release position; an arm biasing spring that biases the movable arm so that it rotates forward; and a spring that is fixed to the drive shaft and engages with the locking member. a mating cam surface for retaining the locking member in the locked position when the drive shaft is in a first rotational position and for retaining the locking member in the locking position when the driveshaft is rotated to a second position; A lumbar support device comprising: a cam member that moves the member toward the release position; and a return spring that biases the cam member toward the first rotational position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16398388U JPH0284548U (en) | 1988-12-20 | 1988-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16398388U JPH0284548U (en) | 1988-12-20 | 1988-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0284548U true JPH0284548U (en) | 1990-06-29 |
Family
ID=31449193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16398388U Pending JPH0284548U (en) | 1988-12-20 | 1988-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0284548U (en) |
-
1988
- 1988-12-20 JP JP16398388U patent/JPH0284548U/ja active Pending
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