JPH0127724Y2 - - Google Patents
Info
- Publication number
- JPH0127724Y2 JPH0127724Y2 JP1983076987U JP7698783U JPH0127724Y2 JP H0127724 Y2 JPH0127724 Y2 JP H0127724Y2 JP 1983076987 U JP1983076987 U JP 1983076987U JP 7698783 U JP7698783 U JP 7698783U JP H0127724 Y2 JPH0127724 Y2 JP H0127724Y2
- Authority
- JP
- Japan
- Prior art keywords
- backrest
- elastic plate
- piece
- chair
- elastic
- 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
Links
- 239000000725 suspension Substances 0.000 claims description 2
- 230000036544 posture Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、椅子フレームの側杆に、背もたれの
左右両側を吊持してなる椅子の背もたれ傾動装置
に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a chair back tilting device in which both left and right sides of the backrest are suspended from the side rods of a chair frame.
椅子フレームにおける左右の側杆の間に懸架し
た背もたれを、着座者の動態的変化によつて生じ
る体圧の変動に対応させて、種々の角度に傾動さ
せるように、背もたれとその両側方の支持体との
間に、硬質ゴム等の弾性体を介在させてなる背も
たれ傾動装置は、公知である。
The backrest and its sides are supported so that the backrest, which is suspended between the left and right side bars of the chair frame, can be tilted to various angles in response to changes in body pressure caused by dynamic changes of the seated person. A backrest tilting device in which an elastic body such as hard rubber is interposed between the backrest and the body is well known.
従来の上記したような背もたれ傾動装置では、
弾性体の弾性応力の強弱のみによつて傾動角度が
決まるため、弾性応力が弱い場合には、背もたれ
の緩衝作用が不十分となり、逆に弾性応力が強い
と、着座者による体圧が大きい場合以外に作用し
なくなり、かつ着座者が背中を背もたれから離し
たときに、背もたれが必要以上に前方に傾いて、
着座者の背中と衝接する。
In the conventional backrest tilting device as mentioned above,
The tilting angle is determined only by the strength of the elastic stress in the elastic body, so if the elastic stress is weak, the cushioning effect of the backrest will be insufficient, and if the elastic stress is strong, the body pressure from the seated person will be large. When the seated person lifts his/her back away from the backrest, the backrest tilts forward more than necessary.
It collides with the back of the seated person.
このように、弾性体の弾性応力を、適切に設定
しておくことは、極めて困難である。 As described above, it is extremely difficult to appropriately set the elastic stress of the elastic body.
本考案は、上記問題点に鑑みてなされたもの
で、着座者の背中に対し、その動態的変位に応じ
て、背もたれの傾動角度を確実に決定でき、しか
も、背もたれの弾性応力を任意に調整できるよう
にした椅子の背もたれ傾動装置を提供することを
目的としており、その構成は、背もたれを左右か
ら支持する椅子フレームの側杆より、相対向する
１対の吊持片を内向きに突設するとともに、各吊
持片の上方において、側杆に、内向きのストツパ
ー片を突設し、前記吊持片に弾性板の一端を固定
するとともに、この弾性板の上端を、背もたれの
左右両側に固定し、さらに前記ストツパー片に、
遊端を前記弾性板の上端に当接させた傾動調節ピ
ンを螺挿したものである。
The present invention was developed in view of the above-mentioned problems, and it is possible to reliably determine the tilting angle of the backrest according to the dynamic displacement of the back of the seated person, and also to arbitrarily adjust the elastic stress of the backrest. The purpose of this invention is to provide a chair backrest tilting device that allows the user to tilt the backrest of a chair, and its structure consists of a pair of opposing hanging pieces that protrude inward from the side rods of a chair frame that supports the backrest from the left and right sides. At the same time, an inwardly directed stopper piece is provided on the side rod above each hanging piece, and one end of an elastic plate is fixed to the hanging piece, and the upper end of this elastic plate is attached to both left and right sides of the backrest. and further to the stopper piece,
A tilt adjustment pin with a free end in contact with the upper end of the elastic plate is screwed into the elastic plate.
着座者の背中が背もたれに当たると、弾性板が
屈曲し、着座者の姿勢に応じて、背もたれの傾動
角度が決まる。
When the seated person's back hits the backrest, the elastic plate bends, and the tilt angle of the backrest is determined according to the seated person's posture.
傾動調節ピンを、背もたれが若干傾斜するよう
に突出させておけば、弾性板の弾性応力が大きく
なつて、着座者の上体の支持力は大となり、か
つ、背もたれが背中から離れたときに、背もたれ
が過度に前方に傾くのが防止される。 If the tilt adjustment pin is made to protrude so that the backrest is slightly inclined, the elastic stress of the elastic plate will increase, and the supporting force for the upper body of the seated person will be large, and when the backrest is separated from the back, , the backrest is prevented from leaning forward too much.
弾性板を適度な長さとしておくことにより、背
もたれの傾動角度を、従来のもの以上に大きくす
ることも可能で、着座者の種々な着座姿勢に適合
しうる。 By setting the elastic plate to an appropriate length, the tilting angle of the backrest can be made larger than that of conventional ones, and it is possible to adapt to various sitting postures of the seated person.
本考案の一実施例を、図面にもとづいて説明す
る。
An embodiment of the present invention will be described based on the drawings.
図示した実施例の椅子は、中空パイプを折曲加
工した側杆１と、後脚２とによつて、座板３を水
平に支持するようにした、通常の形式の折畳椅子
であり、背もたれ４は、対向する側杆１，１の内
側間に吊持されている。 The chair of the illustrated embodiment is a normal folding chair in which a seat plate 3 is horizontally supported by side bars 1 made of bent hollow pipes and rear legs 2. The backrest 4 is suspended between the inner sides of the opposing side bars 1, 1.
第２図は、背もたれ４の一側と一方の側杆１の
上端部との係合要領を示す分解斜視図である。 FIG. 2 is an exploded perspective view showing how one side of the backrest 4 and the upper end of one of the side bars 1 engage with each other.
側杆１の上端よりやや下方に、内向きの吊持片
５が突設されている。 An inwardly directed hanging piece 5 is protruded slightly below the upper end of the side rod 1.
６は、上下方向に長い弾性板で、その下端部
は、上記吊持片５の後面と座金７とで挾まれ、ボ
ルト８ａ及びナツト８ｂによつて固定されてい
る。 Reference numeral 6 denotes a vertically elongated elastic plate, the lower end of which is held between the rear surface of the hanging piece 5 and a washer 7, and is fixed by bolts 8a and nuts 8b.
弾性板６の上端部は、背もたれ４の裏板に固着
されて側方に突出する取付片９の前面と、座金１
０との間に挟まれ、ボルト１１ａとナツト１１ｂ
によつて固定される。 The upper end of the elastic plate 6 is connected to the front surface of a mounting piece 9 that is fixed to the back plate of the backrest 4 and projects laterally, and the washer 1.
0, the bolt 11a and the nut 11b
Fixed by
１２は、側杆１より内向きに突設されたストツ
パー片で、前記吊持片５のやや上方において、弾
性板６の上端部と対抗している。すなわち、この
ストツパー片１２は、弾性板６の前方にあり、背
もたれ４が側杆１より前に押し出されないように
している。 Reference numeral 12 denotes a stopper piece that projects inward from the side rod 1 and opposes the upper end of the elastic plate 6 slightly above the suspension piece 5. That is, this stopper piece 12 is located in front of the elastic plate 6 and prevents the backrest 4 from being pushed out in front of the side rods 1.
ストツパー片１２には、後方への突出量を変化
しうる傾動調節ピン１３が螺入され、背もたれ４
を所定位置で係止している。 A tilt adjustment pin 13 that can change the amount of rearward protrusion is screwed into the stopper piece 12, and the backrest 4
is locked in place.
本考案によれば、着座者の動態的変化に応じ
て、背もたれの傾動角度を確実に決定することが
でき、体圧の変動に対応するように、あらかじめ
弾性応力を任意に調整でき、しかも、簡単な構成
で、適度な弾性応力をもつ椅子の背もたれ傾動装
置を提供することができる。
According to the present invention, the tilting angle of the backrest can be reliably determined according to the dynamic changes of the seated person, and the elastic stress can be arbitrarily adjusted in advance to correspond to fluctuations in body pressure. It is possible to provide a chair back tilting device with a simple configuration and appropriate elastic stress.
第１図は、本考案の椅子の背もたれ傾動装置の
一実施例を備える椅子の斜視図、第２図は、同実
施例の要部を示す分解後方斜視図、第３図は、第
２図の−線に沿う縦断面図、第４図は、同実
施例の要部を示す背面図である。
１…側杆、２…後脚、３…座板、４…背もた
れ、５…吊持片、６…弾性板、７，１０…座金、
８ａ，１１ａ…ボルト、８ｂ，１１ｂ…ナツト、
９…取付片、１２…ストツパー、１３…傾動調節
ピン。
FIG. 1 is a perspective view of a chair equipped with an embodiment of the chair back tilting device of the present invention, FIG. 2 is an exploded rear perspective view showing the main parts of the embodiment, and FIG. FIG. 4 is a rear view showing essential parts of the same embodiment. 1...Side rod, 2...Back leg, 3...Seat plate, 4...Backrest, 5...Hanging piece, 6...Elastic plate, 7, 10...Washer,
8a, 11a...Bolt, 8b, 11b...Nut,
9...Mounting piece, 12...Stopper, 13...Tilt adjustment pin.
Claims (1)
杆より、相対向する１対の吊持片を内向きに突設
するとともに、各吊持片の上方において、側杆
に、内向きのストツパー片を突設し、前記吊持片
に弾性板の一端を固定するとともに、この弾性板
の上端を、背もたれの左右両側に固定し、さらに
前記各ストツパー片に、遊端を前記弾性板の上端
に当接させた傾動調節ピンを螺挿してなる椅子の
背もたれ傾動装置。 A pair of opposing hanging pieces are provided inwardly protruding from the side rods of the chair frame that supports the backrest from the left and right, and an inwardly directed stopper piece is provided above each hanging piece to protrude from the side rods. one end of the elastic plate is fixed to the suspension piece, the upper end of the elastic plate is fixed to both left and right sides of the backrest, and the free end of each stopper piece is brought into contact with the upper end of the elastic plate. A chair back tilting device made by screwing in a tilting adjustment pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7698783U JPS59182255U (en) | 1983-05-24 | 1983-05-24 | chair back tilting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7698783U JPS59182255U (en) | 1983-05-24 | 1983-05-24 | chair back tilting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59182255U JPS59182255U (en) | 1984-12-05 |
| JPH0127724Y2 true JPH0127724Y2 (en) | 1989-08-22 |
Family
ID=30207037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7698783U Granted JPS59182255U (en) | 1983-05-24 | 1983-05-24 | chair back tilting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59182255U (en) |
-
1983
- 1983-05-24 JP JP7698783U patent/JPS59182255U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59182255U (en) | 1984-12-05 |
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