JP2001299498A - Mounting structure of backrest plate of chair - Google Patents

Mounting structure of backrest plate of chair

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Publication number
JP2001299498A
JP2001299498A JP2000127716A JP2000127716A JP2001299498A JP 2001299498 A JP2001299498 A JP 2001299498A JP 2000127716 A JP2000127716 A JP 2000127716A JP 2000127716 A JP2000127716 A JP 2000127716A JP 2001299498 A JP2001299498 A JP 2001299498A
Authority
JP
Japan
Prior art keywords
backrest
backrest plate
frame
plate
mounting structure
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
Application number
JP2000127716A
Other languages
Japanese (ja)
Inventor
Koji Kobayashi
孝二 小林
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.)
Okamura Corp
Original Assignee
Okamura Corp
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 Okamura Corp filed Critical Okamura Corp
Priority to JP2000127716A priority Critical patent/JP2001299498A/en
Publication of JP2001299498A publication Critical patent/JP2001299498A/en
Pending legal-status Critical Current

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

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a backrest plate of a chair, designed to reliably and easily fix a lightweight wood backrest plate to a metal frame. SOLUTION: The lower edge of a backrest plate 4 is curved, projecting downward the center, and hung horizontally on the upper ends of backrest supporting rods 5 rising from the rear of a seat, the lower edge of the backrest plate 4 is made to butt and supported on a backrest frame 6 curved as if to form a complementary shape with the lower edge of the backrest plate 4, and the backrest plate 4 is fastened integrally to the backrest frame 6 by springs 10 passed from the underside of the backrest frame 6.

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、椅子の背凭れ板取
付構造、特に木製の背凭れを有する会議用、食堂用等の
椅子における金属製のフレームと木製の背凭れ板との取
付構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a backrest plate of a chair, and more particularly to a structure for mounting a metal frame and a wooden backrest plate in a chair for a conference or a dining room having a wooden backrest. .

【０００２】[0002]

【従来の技術】従来の一般的なこの種の椅子の金属製の
フレームと背凭れとの取付構造を図６に示す。この図か
ら明らかなように、背凭れ(１)は、金属製のフレーム
(２)の前面に位置し、フレーム(２)に形成された支持部
(2a)に後方から木ねじ等で締め付けられて固定されるの
が一般である。2. Description of the Related Art FIG. 6 shows a mounting structure of a metal frame and a backrest of a conventional general chair of this kind. As is clear from this figure, the backrest (1) is a metal frame.
A support portion located on the front of (2) and formed on the frame (2)
In general, it is fixed to (2a) by being tightened from behind with a wood screw or the like.

【０００３】[0003]

【発明が解決しようとする課題】しかし、上述のような
従来構造では、背凭れ(１)の中央部に着座者の背が強く
当たるので、同部が破損し易く、また、背凭れ板の厚さ
方向に木ねじを螺入して固定するため、取付強度を確保
する必要上、背凭れ板の板厚を厚くしなければならな
い。このことは、デザインを制限し、材料的にもコスト
アップの要因となっている。また、見栄えをよくするた
めに、取付ねじ類の化粧カバーや化粧キャップが必要に
なる。However, in the conventional structure as described above, since the seated person's back strongly hits the center of the backrest (1), the backrest (1) is easily damaged, and the backrest plate has Since the wood screws are screwed and fixed in the thickness direction, it is necessary to secure the mounting strength and to increase the thickness of the backrest plate. This limits the design and raises the cost of materials. Further, in order to improve the appearance, a decorative cover or a decorative cap for mounting screws is required.

【０００４】本発明は、上述の問題点に鑑み、椅子にお
けるフレームと背凭れ板との取付構造であって、軽量な
イメージの木製の背凭れ板を金属製のフレームに体裁よ
く、確実にかつ容易に固定できるようにした椅子の背凭
れ板取付構造を提供することを目的としている。SUMMARY OF THE INVENTION In view of the above problems, the present invention is a mounting structure for a frame and a backrest plate in a chair, and a wooden backrest plate having a light image is formed into a metal frame in a well-formed, reliable, and reliable manner. It is an object of the present invention to provide a backrest plate mounting structure for a chair which can be easily fixed.

【０００５】[0005]

【課題を解決するための手段】本発明によると、上記課
題は、次のようにして解決される。 (１) 背凭れ板の下端縁を中央が上下いずれかに凸とな
るように湾曲した形とし、座の後部より起立した背凭れ
支持杆の上端部に横架され、かつ前記背凭れ板の下端縁
と補形をなすように湾曲した背凭れフレーム上に、前記
背凭れ板の下端縁を当接して支持させるとともに、前記
背凭れフレームの下面より挿通したねじをもって該背凭
れフレームに前記背凭れ板を一体に固着する。According to the present invention, the above-mentioned problem is solved as follows. (1) The lower edge of the backrest plate is curved so that the center is convex upward or downward, and is laterally laid on the upper end of a backrest support rod rising from the rear of the seat. The lower end edge of the backrest plate is brought into contact with and supported on a backrest frame curved so as to complement the lower end edge, and the backrest frame is attached to the backrest frame with a screw inserted from the lower surface of the backrest frame. The back plate is fixed integrally.

【０００６】(２) 上記(１)項において、背凭れフレー
ムを、座の後両側部より起立した２本の背凭れ支持杆の
上端部に横架させる。(2) In the above item (1), the backrest frame is laid on the upper ends of the two backrest support rods standing upright from the rear side portions of the seat.

【０００７】(３) 上記(１)または(２)項において、背
凭れ板の下縁部を、その中央部において下方に凸出する
ほぼ円弧形状とする。(3) In the above item (1) or (2), the lower edge portion of the backrest plate is formed in a substantially arc shape that protrudes downward at the center thereof.

【０００８】(４) 上記(１)〜(３)項のいずれかにおい
て、背凭れフレームの上面適所に上向き係合軸を突設
し、該係合軸を背凭れ板の下端縁の対向箇所に設けた係
合穴に係合させる。(4) In any one of the above items (1) to (3), an upward engaging shaft is protruded at an appropriate position on the upper surface of the backrest frame, and the engaging shaft is provided at a position facing the lower end edge of the backrest plate. Is engaged with the engagement hole provided in.

【０００９】(５) 上記(１)〜(４)項のいずれかにおい
て、背凭れ板の下端縁と背凭れフレームの上面とを、そ
の断面形状において互いに補形をなして嵌合される凹凸
形状とする。(5) In any one of the above items (1) to (4), the lower edge of the backrest plate and the upper surface of the backrest frame may be fitted to each other in a complementary manner in their cross-sectional shapes. Shape.

【００１０】(６) 上記(２)〜(５)項のいずれかにおい
て、背凭れフレームの両端部が、２本の背凭れ支持杆の
側方に突出し、その側方突出部において、背凭れ板を背
凭れフレームにねじ止めする。(6) In any one of the above items (2) to (5), both end portions of the backrest frame protrude to the side of the two backrest support rods, and the backrests are formed at the side protrusions. Screw the board to the backrest frame.

【００１１】(７) 上記(１)〜(６)項のいずれかにおい
て、背凭れ板を、上端部に向かうにつれて厚さが減少す
るものとする。(7) In any one of the above items (1) to (6), the thickness of the backrest plate decreases toward the upper end.

【００１２】[0012]

【発明の実施の形態】図１及び図２は、本発明の一実施
形態を採用した会議用または食堂用等の椅子(Ａ)を示す
図である。椅子(Ａ)は、金属製のフレーム(２)と、木製
の座(３)と、木製の背凭れ板(４)とからなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a chair (A) for a conference or a dining room, etc., which employs an embodiment of the present invention. The chair (A) includes a metal frame (2), a wooden seat (3), and a wooden backrest plate (4).

【００１３】フレーム(２)の脚部分及び座支持部分は丸
パイプ材で作られており、左右の後脚から立ち上がる背
凭れ支持杆(５)の途中から若干小径となり、これら左右
２本の丸パイプ材(または丸棒鋼材)の上端に、丸棒鋼材
の背凭れフレーム(６)が、その端部を側方に突出させて
溶接されている。The leg portion and the seat supporting portion of the frame (2) are made of round pipe material, and have a slightly smaller diameter from the middle of the backrest supporting rod (5) rising from the left and right rear legs. At the upper end of the pipe material (or round bar steel material), a backrest frame 6 made of round bar material is welded with its end protruding sideways.

【００１４】背凭れフレーム(６)は、図１及び図２に示
すように、中央部が下方に凸出するほぼ円弧状の形状と
されており、かつ、図１から明らかなように、全体的に
その中央でゆるやかに後方に凸出する形状をなしてい
る。As shown in FIGS. 1 and 2, the backrest frame (6) has a substantially circular arc shape with its central portion protruding downward, and as is apparent from FIG. It has a shape that protrudes gently rearward at the center.

【００１５】背凭れ板(４)は、背凭れフレーム(６)の上
述の形状に合致する補形的なほぼ円弧状の形状をなして
おり、その下端縁は、中央部が下方に凸出するほぼ円弧
状の形状とされており、かつ、全体的にその中央でゆる
やかに後方に突出する形状をなしている。The backrest plate (4) has a complementary, substantially arc-shaped shape conforming to the above-described shape of the backrest frame (6), and its lower end edge has a central portion projecting downward. And has a shape that protrudes gently rearward at the center as a whole.

【００１６】図３〜図５は、背凭れ板(４)、背凭れフレ
ーム(６)及び背凭れ支持杆(５)を拡大して示す図であ
る。これらの図、ことに図４及び図５から明らかなよう
に、背凭れ板(４)の下端面は、断面円弧状の凹面(4a)と
されており、この凹面(4a)に断面円形の背凭れフレーム
(６)の上部が嵌合している。FIGS. 3 to 5 are enlarged views showing the backrest plate (4), the backrest frame (6) and the backrest support rod (5). 4 and 5, the lower end surface of the backrest plate (4) is a concave surface (4a) having an arcuate cross section, and the concave surface (4a) has a circular cross section. Backrest frame
The upper part of (6) is fitted.

【００１７】背凭れ板(４)は、上述のように、背凭れフ
レーム(６)に嵌合する下端は、背凭れフレーム(６)に被
る程度の厚さを有するが、上部に向かうにつれ厚さを次
第に減ずるとともに、座者の背中に沿うように後方に反
らせてある。As described above, the backrest plate (4) has a thickness such that the lower end fitted to the backrest frame (6) is thick enough to cover the backrest frame (6). It is gradually reduced in length, and is warped backward along the back of the occupant.

【００１８】背凭れフレーム(６)の上面の中央には、上
向きの係合軸(７)が突設されており、背凭れ板(４)の下
端面の対応する位置に穿設された係合穴(８)に係合して
いる。At the center of the upper surface of the backrest frame (6), an upward engaging shaft (7) is provided so as to project therefrom, and is provided at a position corresponding to the lower end surface of the backrest plate (4). It is engaged with the mating hole (8).

【００１９】背凭れ支持部分(５)の側方に突出する背凭
れフレーム(６)の左右の端部には、図５に示すように上
下方向に延びる取付孔(９)が穿設されており、ここから
木ねじ(10)を背凭れ板(４)に螺入することにより、背凭
れ板(４)は背凭れフレーム(６)に強固に固定されてい
る。At the left and right ends of the backrest frame (6) projecting to the side of the backrest support portion (5), mounting holes (9) extending vertically are formed as shown in FIG. The backrest plate (4) is firmly fixed to the backrest frame (6) by screwing a wood screw (10) into the backrest plate (4) from here.

【００２０】上述の実施形態では、背凭れ板(４)は、そ
の下端縁の中央を下方に凸出する形状としたが、デザイ
ン上の要求によっては、その下端縁の中央を上方に円弧
状に凸出させ、両側部が下位となる形状とすることもで
きる。また、背凭れフレーム(６)をその左右両端で、２
本の背凭れ支持部分(５)の上端に連結してもよく、さら
には、２本の背凭れ支持杆(５)を中央で一本にまとめ、
これらを左右に開いて背凭れフレーム(６)の形とするこ
ともできる。さらには、係合軸(７)は中央の１本に限ら
ず、本数、配置位置を任意適切なものとすることもでき
る。In the above embodiment, the backrest plate (4) has a shape in which the center of the lower edge protrudes downward. However, depending on design requirements, the center of the lower edge is upwardly arcuate. , So that both sides are lower. In addition, the backrest frame (6) is
It may be connected to the upper end of the backrest support portion (5) of the book, and furthermore, the two backrest support rods (5) are integrated into one at the center,
These can be opened right and left to form a backrest frame (6). Further, the number of the engagement shafts (7) is not limited to one in the center, and the number and the arrangement position may be arbitrarily appropriate.

【００２１】[0021]

【発明の効果】請求項１記載の発明によると、木製の背
凭れ板の厚さを、その背部から螺入する木ねじ等の取付
ねじのために厚くする必要なく、また、取付ねじで見栄
えを損ねることなく、少ない部品点数で簡単かつ確実に
組み立てることができ、さらには、必要に応じて素材別
に容易に分解できる。また、背凭れ板の下端縁及び背凭
れフレームを上下いずれかに凸となるように湾曲させた
ことにより、背凭れの強度を向上させることができ、背
凭れ板が中央部で破断するのを防止することができる。According to the first aspect of the present invention, it is not necessary to increase the thickness of the wooden backrest plate for mounting screws such as wood screws which are screwed in from the back of the backrest plate. It can be easily and reliably assembled with a small number of parts without damage, and can be easily disassembled for each material as needed. In addition, by bending the lower edge of the backrest plate and the backrest frame so as to project upward or downward, the strength of the backrest can be improved, and the backrest plate can be prevented from breaking at the center. Can be prevented.

【００２２】請求項２記載の発明によると、背凭れフレ
ームの支持強度を高めることができる。According to the second aspect of the invention, the supporting strength of the backrest frame can be increased.

【００２３】請求項３記載の発明によると、背凭れ板の
強度を高め、ことに、背凭れ板の中央部分に集中する座
者の背中の荷重を余裕をもって受けとめることができ
る。According to the third aspect of the present invention, the strength of the backrest plate is enhanced, and in particular, the load on the back of the occupant concentrated on the central portion of the backrest plate can be received with a sufficient margin.

【００２４】請求項４記載の発明によると、係合軸と係
合穴との係合により、背凭れフレームに対する背凭れ板
の位置決めが図られ、両者のねじ止めを容易に行うこと
ができるとともに、背凭れフレームに対する背凭れ板の
前後方向への傾きや反りを防止することができる。According to the fourth aspect of the present invention, the backrest plate is positioned with respect to the backrest frame by the engagement between the engagement shaft and the engagement hole, and both can be easily screwed together. In addition, it is possible to prevent the backrest plate from tilting and warping in the front-rear direction with respect to the backrest frame.

【００２５】請求項５記載の発明によると、背凭れ板の
下端縁が背凭れフレームによって凹凸係合で抱え込まれ
るので、背凭れの強度が増し、座者の背中の荷重を安定
して支持することができる。According to the fifth aspect of the present invention, since the lower edge of the backrest plate is held by the backrest frame in an uneven engagement, the strength of the backrest is increased, and the load on the back of the occupant is stably supported. be able to.

【００２６】請求項６記載の発明によると、背凭れフレ
ームの側方に突出する両端部で背凭れ板を背凭れフレー
ムにねじ止めできるので、そのねじ止め作業がやりやす
くなる。According to the sixth aspect of the present invention, the backrest plate can be screwed to the backrest frame at both ends protruding to the side of the backrest frame, so that the screwing operation is facilitated.

【００２７】請求項７記載の発明によれば、背凭れ板の
上部が弾性変形し易くなり、座りごこちがよくなるとと
もに、背凭れ板の重量を減じ、コストダウンを図ること
ができる。According to the seventh aspect of the present invention, the upper portion of the backrest plate is easily elastically deformed, so that the sitting comfort is improved, the weight of the backrest plate is reduced, and the cost can be reduced.

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

【図１】本発明の一実施形態を備えた椅子の側面図であ
る。FIG. 1 is a side view of a chair provided with an embodiment of the present invention.

【図２】同じく、椅子の正面図である。FIG. 2 is a front view of the chair.

【図３】同じく、背凭れ板とその取付部分の部分拡大正
面図である。FIG. 3 is a partially enlarged front view of a backrest plate and a mounting portion thereof.

【図４】図３のIV−IV線に沿う断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

【図５】図３のＶ−Ｖ線に沿う断面図である。FIG. 5 is a sectional view taken along the line VV in FIG. 3;

【図６】従来の椅子の背凭れ取付部分を後方より見た部
分斜視図である。FIG. 6 is a partial perspective view of a backrest mounting portion of a conventional chair viewed from the rear.

【符号の説明】[Explanation of symbols]

(Ａ)椅子 (１)背凭れ (２)フレーム (2a)支持部 (３)座 (４)背凭れ板 (4a)凹面 (５)背凭れ支持杆 (６)背凭れフレーム (７)係合軸 (８)係合穴 (９)取付孔 (10)木ねじ (A) Chair (1) Backrest (2) Frame (2a) Support (3) Seat (4) Backrest plate (4a) Concave surface (5) Backrest support rod (6) Backrest frame (7) Engagement Shaft (8) Engagement hole (9) Mounting hole (10) Wood screw

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 背凭れ板の下端縁を中央が上下いずれか
に凸となるように湾曲した形とし、座の後部より起立し
た背凭れ支持杆の上端部に横架され、かつ前記背凭れ板
の下端縁と補形をなすように湾曲した背凭れフレーム上
に、前記背凭れ板の下端縁を当接して支持させるととも
に、前記背凭れフレームの下面より挿通したねじをもっ
て該背凭れフレームに前記背凭れ板を一体に固着したこ
とを特徴とする椅子の背凭れ板取付構造。1. A lower end edge of a backrest plate is curved so that its center is convex upward or downward, and is laterally laid on an upper end portion of a backrest support rod rising from a rear portion of the seat. On the backrest frame curved so as to complement the lower edge of the plate, the lower end edge of the backrest plate is brought into contact with and supported by the backrest frame, and a screw inserted from the lower surface of the backrest frame is attached to the backrest frame. A backrest plate mounting structure for a chair, wherein the backrest plate is integrally fixed. 【請求項２】 背凭れフレームを、座の後両側部より起
立した２本の背凭れ支持杆の上端部に横架させた請求項
１記載の椅子の背凭れ板取付構造。2. The backrest plate mounting structure for a chair according to claim 1, wherein the backrest frame is laid on the upper ends of two backrest supporting rods standing upright from both rear portions of the seat. 【請求項３】 背凭れ板の下縁部を、その中央部におい
て下方に凸出するほぼ円弧形状とした請求項１または２
記載の椅子の背凭れ板取付構造。3. The backrest plate according to claim 1, wherein a lower edge portion of the backrest plate has a substantially circular arc shape protruding downward at a central portion thereof.
The backrest plate mounting structure of the chair described in the above. 【請求項４】 背凭れフレームの上面適所に上向き係合
軸を突設し、該係合軸を背凭れ板の下端縁の対向箇所に
設けた係合穴に係合させた請求項１〜３のいずれかに記
載の椅子の背凭れ板取付構造。4. The backrest frame according to claim 1, wherein an upward engaging shaft is protruded at an appropriate position on an upper surface of the backrest frame, and the engaging shaft is engaged with an engaging hole provided at a position facing a lower end edge of the backrest plate. 4. The backrest plate mounting structure for a chair according to any one of 3. 【請求項５】 背凭れ板の下端縁と背凭れフレームの上
面とを、その断面形状において互いに補形をなして嵌合
される凹凸形状とした請求項１〜４のいずれかに記載の
椅子の背凭れ板取付構造。5. The chair according to claim 1, wherein the lower end edge of the backrest plate and the upper surface of the backrest frame have an uneven shape in which their cross-sectional shapes are complementarily fitted to each other. Backrest plate mounting structure. 【請求項６】 背凭れフレームの両端部が、２本の背凭
れ支持杆の側方に突出し、その側方突出部において、背
凭れ板を背凭れフレームにねじ止めした請求項２〜５の
いずれかに記載の椅子の背凭れ板取付構造。6. The backrest frame according to claim 2, wherein both end portions of the backrest frame protrude to the side of the two backrest support rods, and the backrest plate is screwed to the backrest frame at the side protrusions. The backrest plate mounting structure for the chair according to any one of the above. 【請求項７】 背凭れ板を、上端部に向かうにつれて厚
さが減少するものとした請求項１〜６のいずれかに記載
の椅子の背凭れ板取付構造。7. The backrest plate mounting structure for a chair according to claim 1, wherein the thickness of the backrest plate decreases toward the upper end.
JP2000127716A 2000-04-27 2000-04-27 Mounting structure of backrest plate of chair Pending JP2001299498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000127716A JP2001299498A (en) 2000-04-27 2000-04-27 Mounting structure of backrest plate of chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000127716A JP2001299498A (en) 2000-04-27 2000-04-27 Mounting structure of backrest plate of chair

Publications (1)

Publication Number Publication Date
JP2001299498A true JP2001299498A (en) 2001-10-30

Family

ID=18637263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000127716A Pending JP2001299498A (en) 2000-04-27 2000-04-27 Mounting structure of backrest plate of chair

Country Status (1)

Country Link
JP (1) JP2001299498A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005122835A1 (en) * 2004-06-15 2005-12-29 Luhao Leng Combined backrest for chair
JP2013183847A (en) * 2012-03-07 2013-09-19 Kokuyo Furniture Co Ltd Chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005122835A1 (en) * 2004-06-15 2005-12-29 Luhao Leng Combined backrest for chair
JP2013183847A (en) * 2012-03-07 2013-09-19 Kokuyo Furniture Co Ltd Chair

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