JP2000236984A - Lumber support mechanism - Google Patents

Lumber support mechanism

Info

Publication number
JP2000236984A
JP2000236984A JP11039959A JP3995999A JP2000236984A JP 2000236984 A JP2000236984 A JP 2000236984A JP 11039959 A JP11039959 A JP 11039959A JP 3995999 A JP3995999 A JP 3995999A JP 2000236984 A JP2000236984 A JP 2000236984A
Authority
JP
Japan
Prior art keywords
backrest
lumbar support
rod
seat
frame
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.)
Withdrawn
Application number
JP11039959A
Other languages
Japanese (ja)
Inventor
Yuji Asai
祐司 浅井
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.)
Aichi Machine Industry Co Ltd
Original Assignee
Aichi Machine Industry 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 Aichi Machine Industry Co Ltd filed Critical Aichi Machine Industry Co Ltd
Priority to JP11039959A priority Critical patent/JP2000236984A/en
Publication of JP2000236984A publication Critical patent/JP2000236984A/en
Withdrawn legal-status Critical Current

Links

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  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent a lumber support stored in the backrest of a seat from being displaced with the backrest both in an ordinary state and in a reclining state. SOLUTION: Both ends of a U-shaped lumber support frame 8 with a support board 10 on the upper side are pivotally attached to the rear ends of a seat. The upper part of the lumber support frame 8 is inserted into a reclinable backrest from the bottom end of the backrest, and a rod 11 to be stored inside the backrest is pivotally attached to the backrest frame 6, The top of the rod 11 abuts to the rear side of the lumber support 7, and a cam 14 abuts to the rear side of the rod 11. The cam 14 makes the lumber support 7 project by way of the rod 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は例えば自動車のシー
トのランバーサポート機構に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lumbar support mechanism for, for example, an automobile seat.

【0002】[0002]

【従来の技術】図5〜図7に従来例を示す。シート(1)
の背もたれ部(3) の背もたれ枠(6) の下端部は、座部
(2) の座枠(5A)の後端部にリクライニング可能に取付け
られており、該背もたれ部(3) に内蔵されるランバーサ
ポート(27)において、該背もたれ枠(6) の両側辺(6A,6
A) にはコの字形のランバーサポート枠(28)が前後回動
可能に支持されており、該ランバーサポート枠(28)の下
辺前側にはサポート板(30)が取付けられており、該ラン
バーサポート枠(28)の一側辺の後側にはカム(34)が当接
しており、該カム(34)のカム軸(35)の外出端にはハンド
ル(36)が取付けられている(例えば実用新案登録第25
41913号)。
2. Description of the Related Art FIGS. Sheet 1)
The lower end of the backrest frame (6) of the backrest (3)
The lumbar support (27) built in the backrest (3) is attached to the rear end of the seat frame (5A) of (2) so as to be reclined, and both sides (6A) of the backrest frame (6) , 6
A), a U-shaped lumbar support frame (28) is supported to be able to rotate back and forth, and a support plate (30) is attached to the front side of the lower side of the lumbar support frame (28). A cam (34) is in contact with the rear side of one side of the support frame (28), and a handle (36) is attached to the outside end of the cam shaft (35) of the cam (34) ( For example, utility model registration No. 25
41913).

【0003】上記構成では、図6点線に示すランバーサ
ポート引込み状態からハンドル(36)を矢印方向に回して
カム(34)によってランバーサポート枠(28)を前側に回動
させ、実線に示すランバーサポート突出状態として、腰
掛けている人Hの腰椎を支持せしめる。
In the above configuration, the lumbar support frame (28) is turned forward by the cam (34) by turning the handle (36) in the direction of the arrow from the retracted state of the lumbar support shown by the dotted line in FIG. In the protruding state, the lumbar spine of the person H sitting is supported.

【0004】[0004]

【発明が解決しようとする課題】上記従来のランバーサ
ポートの構造では、図7のように背もたれ部(3) をリク
ライニングさせた時、背もたれ枠(6) のリクライニング
と共にランバーサポート(27)も移動し、ランバーサポー
ト(27)の支持点PがP′へと上方に移動し、人Hの腰椎
位置からずれてしまうと云う問題点があった。
In the structure of the conventional lumbar support described above, when the backrest (3) is reclined as shown in FIG. 7, the lumbar support (27) also moves together with the reclining of the backrest frame (6). In addition, there is a problem that the support point P of the lumbar support 27 moves upward to P 'and is shifted from the lumbar position of the person H.

【0005】[0005]

【課題を解決するための手段】本発明は上記従来の課題
を解決するための手段として、上辺にサポート板(10)を
取付けたコの字形のランバーサポート枠(8) の両端部を
座部(2) 後端部に枢着し、該ランバーサポート枠(8) の
上部はリクライニング可能な背もたれ部(3) 下端から背
もたれ部(3) 内に挿入し、該背もたれ部(3) 内には上端
を背もたれ枠(6) に枢着したロッド(11)を設け、該ロッ
ド(11)の先端部には該ランバーサポート(7) の後側に当
接し、更に該ロッド(11)の後側にはカム(14)が当接して
いるランバーサポート機構を提供するものである。
According to the present invention, as a means for solving the above-mentioned conventional problems, both ends of a U-shaped lumbar support frame (8) having a support plate (10) mounted on an upper side are seated. (2) The lumbar support frame (8) pivotally attached to the rear end, and the upper part of the lumbar support frame (8) is inserted into the backrest (3) from the lower end of the reclining backrest (3). A rod (11) having an upper end pivotally attached to the backrest frame (6) is provided, and the distal end of the rod (11) abuts on the rear side of the lumbar support (7), and further the rear side of the rod (11). Provides a lumbar support mechanism with which the cam (14) is in contact.

【0006】[0006]

【作用】ランバーサポート(7) のハンドル(16)を回して
カム(14)によってロッド(11)を前方に回動させ、該ロッ
ド(11)によってランバーサポート枠(8) を前方へ押し、
該ランバーサポート枠(8) のサポート板(10)を前方に突
出させ、該背もたれ部(3) のパッド(17)を押す。このよ
うなランバーサポート(7) 突出状態で背もたれ部(3) を
リクライニングさせると、ランバーサポート枠(8) も該
背もたれ部(3) のリクライニングによって後方へ回動す
る。しかし該ランバーサポート枠(8) は座部(2) 側に枢
着されているから、サポート板(10)の座面からの距離は
実質的に変化しない。
[Action] The handle (16) of the lumbar support (7) is turned to rotate the rod (11) forward by the cam (14), and the rod (11) pushes the lumbar support frame (8) forward,
The support plate (10) of the lumbar support frame (8) is projected forward, and the pad (17) of the backrest (3) is pressed. When the backrest (3) is reclined in such a state that the lumbar support (7) is protruded, the lumbar support frame (8) also rotates rearward due to the reclining of the backrest (3). However, since the lumbar support frame (8) is pivotally mounted on the seat (2) side, the distance of the support plate (10) from the seat surface does not substantially change.

【0007】[0007]

【実施例】本発明を図1〜図4に示す一実施例によって
説明すれば、シート(1) は例えば自動車に設置されるも
のであって、座部(2) と、該座部(2) にリクライニング
デバイス(4) を介してリクライニング可能に取付けられ
ている背もたれ部(3) とからなり、図2に示すように背
もたれ部(3) 内にはランバーサポート機構(7) が内蔵さ
れている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 4. The seat (1) is installed in, for example, an automobile, and comprises a seat (2) and a seat (2). ) Comprises a backrest (3) which is mounted so as to be reclineable via a reclining device (4). As shown in FIG. 2, a lumbar support mechanism (7) is built in the backrest (3). I have.

【0008】該ランバーサポート機構(7) は座枠(5) の
両側面(5A,5A) に両端部が軸(9) を介して回動自在に支
持され上辺にはサポート板(10)が取付けられているコの
字形のランバーサポート枠(8) と、上端部が軸(12)を介
して背もたれ枠(6) の一側面(6A)に枢着され下端部の押
圧ブロック(13)が該ランバーサポート枠(8) の後側に当
接するロッド(11)と、該ロッド(11)の中間部後側に当接
するカム(14)と、該カム(14)の偏心軸(カム軸(15))の
先端外出部に取付けられているハンドル(16)とからな
る。
The lumbar support mechanism (7) has both ends rotatably supported on both sides (5A, 5A) of a seat frame (5) via a shaft (9), and a support plate (10) on an upper side. The U-shaped lumbar support frame (8) is attached, and the upper end is pivotally attached to one side (6A) of the backrest frame (6) via the shaft (12), and the lower pressing block (13) is A rod (11) abutting on the rear side of the lumbar support frame (8), a cam (14) abutting on the rear side of an intermediate portion of the rod (11), and an eccentric shaft (cam shaft ( 15)) and a handle (16) attached to the outside of the tip.

【0009】該背もたれ部(3) においては、該背もたれ
枠(6) の前面から上端にかけてパッド(17)が被着され、
その表面にはトリム(18)が被着されている。そしてハン
ドル(16)を図3矢印方向に回すと、カム(14)に押されて
ロッド(11)が前方へ回動し、該ロッド(11)の押圧ブロッ
ク(13)が該ランバーサポート枠(8) の後側を押して該ラ
ンバーサポート枠(8) のサポート板(10)がパッド(17)を
押し、該パッド(17)をトリム(18)と共に突出させる。こ
の突出部Pがシート(1) に腰掛けている人Hの腰椎を支
持する。なお、該カム(14)はモーター等で回転させても
よい。
In the backrest (3), a pad (17) is attached from the front to the upper end of the backrest frame (6),
A trim (18) is applied to the surface. When the handle (16) is turned in the direction of the arrow in FIG. 3, the rod (11) is pushed forward by the cam (14), and the pressing block (13) of the rod (11) is moved to the lumbar support frame ( 8) Pushing the rear side, the support plate 10 of the lumbar support frame 8 pushes the pad 17 so that the pad 17 projects together with the trim 18. The protrusion P supports the lumbar spine of the person H sitting on the seat (1). The cam (14) may be rotated by a motor or the like.

【0010】図4に示すように背もたれ部(3) を図3に
示す通常状態から後方にリクライニングさせた場合、ラ
ンバーサポート枠(8) も後方に回動する。しかし該ラン
バーサポート枠(8) の軸(9) は座部(2) の座枠(5) 側に
取付けられているから、当然ランバーサポート枠(8) の
軸(9) からサポート板(10)までの位置は変わらず、した
がってランバーサポート(7) の突出部Pの位置は実質的
に変化せず、人Hの腰椎の位置(適正位置)からずれな
い。
When the backrest (3) is reclined rearward from the normal state shown in FIG. 3 as shown in FIG. 4, the lumbar support frame (8) also rotates rearward. However, since the shaft (9) of the lumbar support frame (8) is attached to the seat frame (5) side of the seat (2), the support plate (10) is naturally moved from the shaft (9) of the lumbar support frame (8). ) Does not change, and therefore the position of the protrusion P of the lumbar support 7 does not substantially change, and does not deviate from the position of the lumbar vertebra of the person H (proper position).

【0011】[0011]

【発明の効果】本発明では通常状態でもリクライニング
状態でもランバーサポート位置が腰掛けている人の腰椎
位置からずれず適正位置に維持されるので、座り心地の
非常に良いシートが提供出来る。本発明のランバーサポ
ート機構は自動車のシート以外、列車、船舶、航空機等
の乗り物や事務椅子、安楽椅子、劇場用の椅子等に適用
出来る。
According to the present invention, the lumbar support position is maintained at the proper position without shifting from the lumbar position of the person sitting in the normal state and the reclining state, so that it is possible to provide a seat with very good sitting comfort. The lumbar support mechanism of the present invention can be applied to vehicles such as trains, ships, and aircraft, office chairs, easy chairs, theater chairs, and the like, in addition to automobile seats.

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

図1〜図4は本発明の一実施例を示すものである。 1 to 4 show one embodiment of the present invention.

【図1】シート斜視図FIG. 1 is a perspective view of a seat.

【図2】シート枠斜視図FIG. 2 is a perspective view of a seat frame.

【図3】シート通常状態側面切欠き側面図FIG. 3 is a side view of the seat in a normal state with a side cutout.

【図4】シートリクライニング状態側面切欠き側面図図
5〜図7は従来例を示すものである。
FIG. 4 is a side view of a seat reclining state, and FIG. 5 to FIG. 7 show a conventional example.

【図5】シート枠斜視図FIG. 5 is a perspective view of a seat frame.

【図6】シート通常状態側面切欠き側面図FIG. 6 is a side view of the seat in a normal state with a side cutout.

【図7】シートリクライニング状態側面切欠き側面図FIG. 7 is a side view of a side notch in a seat reclining state.

【符号の説明】[Explanation of symbols]

2 座部 3 背もたれ部 6 背もたれ枠 7 ランバーサポート機構(ランバーサポート) 8 ランバーサポート枠 11 ロッド 10 サポート板 14 カム 2 Seat 3 Backrest 6 Backrest frame 7 Lumbar support mechanism (Lumbar support) 8 Lumbar support frame 11 Rod 10 Support plate 14 Cam

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】上辺にサポート板を取付けたコの字形のラ
ンバーサポート枠の両端部を座部後端部に枢着し、該ラ
ンバーサポート枠の上部はリクライニング可能な背もた
れ部下端から背もたれ部内に挿入し、該背もたれ部内に
は上端を背もたれ枠に枢着したロッドを設け、該ロッド
の先端部は該ランバーサポートの後側に当接し、更に該
ロッドの後側にはカムが当接していることを特徴とする
ランバーサポート機構
An upper end of a U-shaped lumbar support frame having a support plate attached to an upper side is pivotally connected to a rear end of a seat, and an upper portion of the lumbar support frame is inserted into a backrest from a lower end of a reclining backrest. A rod having an upper end pivotally attached to a backrest frame is provided in the backrest portion, and a tip end portion of the rod abuts a rear side of the lumbar support, and a cam abuts a rear side of the rod. Lumbar support mechanism characterized by the following:
JP11039959A 1999-02-18 1999-02-18 Lumber support mechanism Withdrawn JP2000236984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11039959A JP2000236984A (en) 1999-02-18 1999-02-18 Lumber support mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11039959A JP2000236984A (en) 1999-02-18 1999-02-18 Lumber support mechanism

Publications (1)

Publication Number Publication Date
JP2000236984A true JP2000236984A (en) 2000-09-05

Family

ID=12567507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11039959A Withdrawn JP2000236984A (en) 1999-02-18 1999-02-18 Lumber support mechanism

Country Status (1)

Country Link
JP (1) JP2000236984A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009105755A2 (en) 2008-02-21 2009-08-27 Nexgenix Pharmaceuticals Macrocyclic prodrug compounds useful as therapeutics
DE102011107927B4 (en) * 2011-07-19 2015-02-12 Grammer Aktiengesellschaft Vehicle seat with backrest deformation
DE102016206533A1 (en) 2015-05-07 2016-11-10 Toyota Jidosha Kabushiki Kaisha Occupant protection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009105755A2 (en) 2008-02-21 2009-08-27 Nexgenix Pharmaceuticals Macrocyclic prodrug compounds useful as therapeutics
DE102011107927B4 (en) * 2011-07-19 2015-02-12 Grammer Aktiengesellschaft Vehicle seat with backrest deformation
DE102016206533A1 (en) 2015-05-07 2016-11-10 Toyota Jidosha Kabushiki Kaisha Occupant protection device
US9889771B2 (en) 2015-05-07 2018-02-13 Toyota Jidosha Kabushiki Kaisha Occupant protection device including lumbar support

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20060509