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JPS5874853U - Chair back angle and height adjustment device - Google Patents

Chair back angle and height adjustment device

Info

Publication number
JPS5874853U
JPS5874853U JP17154881U JP17154881U JPS5874853U JP S5874853 U JPS5874853 U JP S5874853U JP 17154881 U JP17154881 U JP 17154881U JP 17154881 U JP17154881 U JP 17154881U JP S5874853 U JPS5874853 U JP S5874853U
Authority
JP
Japan
Prior art keywords
backrest support
ischial
metal fitting
side wall
fitting
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
Application number
JP17154881U
Other languages
Japanese (ja)
Other versions
JPS5934364Y2 (en
Inventor
葛西　康男
Original Assignee
チトセ株式会社
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 チトセ株式会社 filed Critical チトセ株式会社
Priority to JP17154881U priority Critical patent/JPS5934364Y2/en
Publication of JPS5874853U publication Critical patent/JPS5874853U/en
Application granted granted Critical
Publication of JPS5934364Y2 publication Critical patent/JPS5934364Y2/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/402—Supports for the head or the back for the back adjustable in height

Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図面はこの考案の実施例を示すもので、第１図は椅子全
体の側面図、第２図は要部の拡大縦断面図、第３図は同
要部の斜視図、第４図は第２図■−■線の断面図である
。 ３・・・座骨金具、３ａ３ｂ・・・上下壁、４・・・座
板、５・・・背もたれ支柱、１２．１３・・・外方屈曲
縁、１５・・・枢支ピン、１６・・・円弧状長孔、１７
・・・緊締ボルト。The drawings show an embodiment of this invention: Fig. 1 is a side view of the entire chair, Fig. 2 is an enlarged vertical cross-sectional view of the main part, Fig. 3 is a perspective view of the main part, and Fig. 4 is a side view of the entire chair. FIG. 2 is a sectional view taken along the line ■-■ in FIG. 3... Seat bone metal fitting, 3a3b... Upper and lower walls, 4... Seat plate, 5... Backrest support, 12.13... Outward bending edge, 15... Pivot pin, 16...・Circular long hole, 17
...Tightening bolt.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 座板４の下面に後方突出状に設けられた座骨金具３の後
部上下壁３ａ、　　３ｂに、前後方向に長い一対の長孔
８，９が穿設されると共に、該長孔８゜９を通じて座骨
金具３に背もたれ支柱５が上下摺動および前後傾動自在
に貫挿される一方、−側るを開放した枠状の背もたれ支
柱把持部１１とその両端に連設された外方屈曲縁１２．
１３とを有する背もたれ支柱固定金具１０が把持部１１
を前記背もたれ支柱５に上下摺動自在に嵌合せしめられ
て一方の屈曲縁１２を座骨金具３の一側壁３Ｃに枢支ピ
ン１５によって枢着されると共に、他方の屈曲縁１３を
同一側壁３Ｃに穿たれた枢支ピン１５を中心とする円弧
状長孔１６を通じて座骨金具３内に挿通された操作ハン
ドル１８付き角度固定用緊締ボルト１７に螺挿されて座
骨金具３に取付けられ、前記緊締ボルト１７によって前
記他方屈曲縁１３が座骨金具３の一側壁３Ｃに強制的に
締着固定されることにより、背もたれ支柱５が、把持部
１１の頂壁によって座骨金具３の上下長孔８．９の側縁
に押圧固定されるようになされてなる椅子の背もたれ角
度および高さ調整装置。A pair of elongated holes 8, 9 which are long in the front-rear direction are bored in the upper and lower rear walls 3a, 3b of the seat bone fitting 3, which is provided on the lower surface of the seat plate 4 in a rearwardly protruding manner. A backrest support 5 is inserted through the seat frame fitting 3 so as to be able to slide up and down and tilt forward and backward, while a frame-shaped backrest support grip 11 with open sides and outwardly bent edges 12 are connected to both ends thereof.
13, the backrest support fixture 10 has a grip portion 11.
is vertically slidably fitted to the backrest support 5, one bent edge 12 is pivotally connected to one side wall 3C of the ischial metal fitting 3 by a pivot pin 15, and the other bent edge 13 is attached to the same side wall 3C. An angle fixing tightening bolt 17 with an operation handle 18 inserted into the ischial metal fitting 3 through an arcuate long hole 16 centered on a pivot pin 15 drilled in By forcibly fastening and fixing the other bent edge 13 to the one side wall 3C of the ischial metal fitting 3 by the bolt 17, the backrest support 5 is fitted into the upper and lower elongated holes 8.9 of the ischial metal fitting 3 by the top wall of the grip part 11. A chair backrest angle and height adjustment device that is press-fixed to the side edge of the chair.
JP17154881U 1981-11-17 1981-11-17 Chair back angle and height adjustment device Expired JPS5934364Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17154881U JPS5934364Y2 (en) 1981-11-17 1981-11-17 Chair back angle and height adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17154881U JPS5934364Y2 (en) 1981-11-17 1981-11-17 Chair back angle and height adjustment device

Publications (2)

Publication Number Publication Date
JPS5874853U true JPS5874853U (en) 1983-05-20
JPS5934364Y2 JPS5934364Y2 (en) 1984-09-22

Family

ID=29963467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17154881U Expired JPS5934364Y2 (en) 1981-11-17 1981-11-17 Chair back angle and height adjustment device

Country Status (1)

Country Link
JP (1) JPS5934364Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709621A (en) * 1984-03-13 1987-12-01 Ngk Insulators, Ltd. Internal combustion engine piston and a method of producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709621A (en) * 1984-03-13 1987-12-01 Ngk Insulators, Ltd. Internal combustion engine piston and a method of producing the same
EP0155159B1 (en) * 1984-03-13 1990-06-20 Ngk Insulators, Ltd. An internal combustion engine piston and a method of producing the same

Also Published As

Publication number Publication date
JPS5934364Y2 (en) 1984-09-22

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