JPH0523097Y2 - - Google Patents
Info
- Publication number
- JPH0523097Y2 JPH0523097Y2 JP13756688U JP13756688U JPH0523097Y2 JP H0523097 Y2 JPH0523097 Y2 JP H0523097Y2 JP 13756688 U JP13756688 U JP 13756688U JP 13756688 U JP13756688 U JP 13756688U JP H0523097 Y2 JPH0523097 Y2 JP H0523097Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- backrest
- rod
- backrest rod
- operation button
- 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 - Lifetime
Links
- 210000000078 claw Anatomy 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、椅子の背凭れ板高さ調節装置に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a chair back plate height adjustment device.
従来、椅子の背凭れ板を上下高さ調節する装置
は各種のものが提供されており、例えば実公昭63
−130号公報にて開示される如く、支持杆を２支
杆に分割して、一方の支杆の端面に、前後に並ん
で互いに平行をなす一対の案内杆を突設して、そ
の間に下設した調節板に、所定間隔を設けて上下
に並ぶ複数の係合孔を、係合孔の径より小幅の連
絡孔をもつて連通してなる調節孔を穿設し、上記
案内杆と調節板を、他方の支杆の端面に穿設した
垂直方向を向く案内孔に昇降自在に内嵌し、また
他方の支杆の両側部要所に、それぞれ調節孔に連
通する等高の径違孔を穿設して、係合孔より大径
のフランジと、係合孔と等径の係合軸と、連絡孔
の横幅と等径の小径軸を順に連設してなる径違い
の調節軸を挿通して、バネをもつて付勢すること
により、常時は、係合軸が係合孔に係合し、バネ
に抗して小径軸を押し込むことにより、係合軸に
代わつて小径軸が係合孔に嵌入するようになした
高さ調節装置が提供されるが、支持杆を２支杆に
分割し、一方の支杆端面の案内杆を他方の支杆端
面の案内孔に昇降自在に内嵌して連結しているの
で、背凭れ板にかかる重量がこの連結部に曲げ応
力として作用し、強度的に問題を有するととも
に、長期間の使用に際してガタつき等が発生する
恐れがあり、また案内孔は互いに平行な一対の案
内杆とその間に架設した調節板を緩みなく且つ昇
降自在に内嵌するため、形状が複雑でしかも高い
寸法精度が要求され、コスト高になる傾向にあ
り、更に上下の係合孔を連絡孔で連通しているの
で、該係合孔と連絡孔の連続部が摩擦により拡径
して、上下方向のガタつきが生じる恐れも有する
ものである。
Conventionally, various types of devices have been provided to adjust the height of the backrest of a chair.
- As disclosed in Publication No. 130, the support rod is divided into two support rods, and a pair of guide rods arranged in front and back and parallel to each other are protruded from the end face of one support rod, and between them, An adjustment hole is formed in the adjustment plate installed below, in which a plurality of engagement holes arranged vertically at a predetermined interval are communicated with each other through a communication hole having a width smaller than the diameter of the engagement hole, and the adjustment hole is connected to the guide rod. The adjustment plate is fitted into a vertically oriented guide hole drilled in the end face of the other support rod so as to be able to rise and fall freely, and at key points on both sides of the other support rod, there are holes of equal height that communicate with the adjustment holes. Different diameter holes are drilled, and a flange with a larger diameter than the engagement hole, an engagement shaft with the same diameter as the engagement hole, and a small diameter shaft with the same diameter as the width of the communicating hole are connected in order. By inserting the adjustment shaft and biasing it with a spring, the engagement shaft normally engages with the engagement hole, and by pushing the small diameter shaft against the spring, it replaces the engagement shaft. A height adjustment device is provided in which a small diameter shaft is fitted into an engagement hole, but the support rod is divided into two support rods, and the guide rod on the end surface of one support rod is inserted into the guide hole on the end surface of the other support rod. Since the backrest plate is fitted inside and connected so that it can be raised and lowered, the weight applied to the backrest plate acts as bending stress on this connection, which poses strength problems and causes wobbling etc. during long-term use. In addition, since the guide hole has a pair of parallel guide rods and an adjustment plate installed between them that can be raised and lowered freely without loosening, the shape is complex and high dimensional accuracy is required, resulting in high costs. Furthermore, since the upper and lower engagement holes are connected through a communication hole, there is a risk that the diameter of the continuous portion between the engagement hole and the communication hole may expand due to friction, causing vertical wobbling. be.
本考案が前述の状況に鑑み、解決しようとする
ところは、背凭れ杆に対する背凭れ板の上下高さ
調節の操作性に優れ、確実な上下調節及び高さ維
持が行えるとともに、背凭れ板のガタつきが全く
生じなく、部品点数が少なく組立て容易な椅子の
背凭れ板高さ調節装置を提供する点にある。
The present invention aims to solve the above-mentioned situation by providing excellent operability in adjusting the vertical height of the backrest plate with respect to the backrest rod, ensuring reliable vertical adjustment and height maintenance, and improving the operability of the vertical height adjustment of the backrest plate with respect to the backrest rod. To provide a height adjusting device for a backrest plate of a chair, which does not cause rattling at all, has a small number of parts, and is easy to assemble.
本考案は、前述の課題解決のために、背凭れ板
と、脚部又は座部に下端部を連結して立起状態と
なした管体で、背面内側の所定高さに係止部を形
成するとともに、その上方に所定距離を隔てて開
口を形成し、更に前記係止部と開口との間に貫通
孔を形成してなる背凭れ杆と、前記背凭れ杆内部
の係止部に基板の下端を前後傾動可能に支持さ
れ、上端に前記開口から外方へ出没する爪片を折
曲形成し、中間部に前記貫通孔に外方へ突出状態
で挿入した操作ボタンの先端を連係させるととも
に、前記背凭れ杆の前面との間に介在させた弾性
体にて後方へ弾性付勢してなる操作部材と、前記
背凭れ杆の上部にスライド可能に外嵌する杆体の
両側に背凭れ板を固定する取付板を設けるととも
に、背面には前記操作部材の爪片を係合する複数
の調節孔を上下に所定間隔を隔てて形成してなる
スライド杆とよりなる椅子の背凭れ板高さ調節装
置を構成した。
In order to solve the above-mentioned problems, the present invention consists of a backrest plate and a tube whose lower end is connected to the legs or the seat in an upright state, and has a locking part at a predetermined height on the inside of the back. a backrest rod, an opening is formed at a predetermined distance above the backrest rod, and a through hole is formed between the locking portion and the opening; and a locking portion inside the backrest rod. The lower end of the board is supported so as to be tiltable back and forth, the upper end is bent to form a claw piece that protrudes outward from the opening, and the middle part is connected to the tip of an operation button inserted into the through hole in an outwardly protruding state. and an operating member elastically biased rearward by an elastic body interposed between the front surface of the backrest rod and a backrest rod on both sides of the rod body that is slidably fitted onto the upper part of the backrest rod. A chair back plate comprising a mounting plate for fixing the back plate, and a slide rod having a plurality of adjustment holes vertically spaced apart from each other at predetermined intervals on the back surface to engage the claws of the operating member. A height adjustment device was constructed.
以上の如き内容からなる本考案の椅子の背凭れ
板高さ調節装置は、背凭れ杆の背面内側の係止部
に操作部材の基板下端を前後傾動可能に支持する
とともに、先端の爪片を背凭れ杆の開口から出没
自在となして装着し、背凭れ杆の貫通孔に挿入し
先端を操作部材の基板中間部に連結させた操作ボ
タンを、該基板と背凭れ杆の前面との間に介在さ
せた弾性体の後方への弾性付勢力に抗して押し込
むことにより、操作部材は係止部に支持された下
端を支点として傾動して、前記背凭れ杆の上部に
スライド可能に外嵌したスライド杆の調節孔から
爪片が脱却し、該スライド杆に固定した背凭れ板
を所定高さに設定した後、前記操作ボタンを通常
のフリーな状態にすることにより、開口から突出
した爪片を調節孔に係合させて、その高さを維持
するのである。
The chair back plate height adjustment device of the present invention, which is constructed as described above, supports the lower end of the base plate of the operating member in a locking part on the inside of the back of the backrest rod so as to be tiltable back and forth, and also has a claw piece at the tip. An operation button that is mounted so as to be freely retractable from the opening of the backrest rod, inserted into the through hole of the backrest rod, and whose tip is connected to the intermediate part of the board of the operating member is placed between the board and the front surface of the backrest rod. By pushing the operating member against the rearward elastic biasing force of the elastic body interposed in the holder, the operating member is tilted about the lower end supported by the locking part as a fulcrum, and is slidably removed from the upper part of the backrest rod. After the claw piece is released from the adjustment hole of the fitted slide rod and the backrest plate fixed to the slide rod is set at a predetermined height, the operation button is returned to its normal free state so that it protrudes from the opening. The height is maintained by engaging the claw piece with the adjustment hole.
次に添付図面に示した実施例に基づき更に本考
案の詳細を説明する。
Next, the present invention will be further explained in detail based on the embodiments shown in the accompanying drawings.
第１図は本考案を適用した椅子を示し、第２図
は本考案の代表的実施例を示し、図中Ａは背凭れ
板、Ｂは背凭れ杆、Ｃは操作部材、Ｄはスライド
杆をそれぞれ示している。本実施例で示した椅子
は、背凭れ板Ａを、脚部１又は座部２に下端部を
連結して立起状態となした背凭れ杆Ｂの上部に、
操作部材Ｃに関係づけ高さ調節可能となして装着
したスライド杆Ｄに固定したものである。 Fig. 1 shows a chair to which the present invention is applied, and Fig. 2 shows a typical embodiment of the invention, in which A is a backrest plate, B is a backrest rod, C is an operating member, and D is a slide rod. are shown respectively. The chair shown in this embodiment has a backrest plate A attached to the upper part of a backrest rod B whose lower end is connected to the leg part 1 or the seat part 2 in an upright state.
It is fixed to a slide rod D attached to an operating member C so that its height can be adjusted.
前記背凭れ板Ａは、前面にクツシヨン３を有
し、裏面に背板４を有する通常構造のもので、該
背板４に固定するスライド杆Ｄ及び背凭れ杆Ｂの
上部を外覆し得る裏カバー５を、適宜該背板４の
一部又は全部に取付けるようになしている。 The backrest plate A has a normal structure having a cushion 3 on the front side and a back plate 4 on the back side, and has a slide rod D fixed to the back plate 4 and a back side that can cover the upper part of the backrest rod B. A cover 5 is attached to part or all of the back plate 4 as appropriate.
前記背凭れ杆Ｂは、第２図〜第４図に示す如く
下部の屈曲部６と上部の直線部７からなる側面視
略Ｊ字形に管体で形成したもので、該屈曲部６の
下端部を脚部１又は座部２に固定又は前後に傾動
するように弾性付勢して軸着するようにしてあ
り、前記直線部７の背面８には所定高さの内側に
上方開口した係止部９を切起し形成するととも
に、その上方に所定距離を隔てて開口１０を形成
し、更に前記係止部９と開口１０との間に貫通孔
１１を形成してあり、また該貫通孔１１の上方で
前記開口１０を挟んで上下に四角形の係合孔１
２，１２を開設している。ここで、本実施例では
前記貫通孔１１は、下方の大孔１３と上方の小孔
１４を連通させた形状に穿設したものである。 As shown in FIGS. 2 to 4, the backrest rod B is formed of a tubular body in a substantially J-shape in side view, consisting of a lower bent portion 6 and an upper straight portion 7, and the lower end of the bent portion 6. The straight portion 7 is fixed to the leg portion 1 or the seat portion 2, or is elastically biased to be pivoted so as to tilt back and forth, and the back surface 8 of the straight portion 7 has a locking member that opens upwardly on the inside at a predetermined height. The locking portion 9 is cut and bent, and an opening 10 is formed above the locking portion 9 at a predetermined distance, and a through hole 11 is formed between the locking portion 9 and the opening 10. A rectangular engagement hole 1 is provided above and below the hole 11 with the opening 10 in between.
2 and 12 have been opened. Here, in this embodiment, the through hole 11 is formed in a shape such that a lower large hole 13 and an upper small hole 14 communicate with each other.
前記操作部材Ｃは、前記背凭れ杆Ｂの内部に装
着されるもので、長尺の基板１５の下端を前記背
凭れ杆Ｂの係止部９に前後傾動可能に支持される
支持部１６となし、上端に前記開口１０から外方
即ち後方へ出没する爪片１７を折曲形成し、更に
中間部の稍下方に孔１８を穿設し、前記背凭れ杆
Ｂの前面１９側で該孔１８の周囲に支持環２０を
突設し、前記背凭れ杆Ｂの貫通孔１１に外方から
挿入された操作ボタン２１の先端突起２２を前記
孔１８から前方へ突出させ、そして該突起２２と
前記支持環２０の間に弾性体としての圧縮コイル
バネ２３の一端を係合支持し、もつて該圧縮コイ
ルバネ２３の他端を背凭れ杆Ｂの前面１９内面に
圧縮状態で当接支持させることにより、前記爪片
１７が前記開口１０から突出する方向に常に弾性
付勢して構成した。ここで、前記操作ボタン２１
は、本実施例では前記貫通孔１１の大孔１３を通
過でき且つ小孔１４に係止し得る鍔部２４を該小
孔１４を通過し得る首部２５の先端に一体形成
し、更に前記突起２２を該鍔部２４の中心部に突
設した形状のものである。また、前記操作ボタン
２１の首部２５の長さは、前記背凭れ杆Ｂの背面
８の板厚より十分長く設定し、該操作ボタン２１
を該背凭れ杆Ｂの貫通孔１１に挿入した場合に、
前後に移動できるようになしている。尚、前記基
板１５の上部には、横方向の振れを防止するため
の当止片２６，２６を延設し、横振れした場合に
前記背凭れ杆Ｂの両側面２７，２７の内面に当止
するようになしている。また、本実施例では弾性
体として、圧縮コイルバネ２３を示したが、これ
に限るものではなく板バネ及び合成ゴム等を使用
できるものである。 The operating member C is mounted inside the backrest lever B, and has a lower end of the elongated base plate 15 connected to a support portion 16 that is supported by the locking portion 9 of the backrest lever B so as to be tiltable back and forth. None, a claw piece 17 that protrudes outward or rearward from the opening 10 is bent and formed on the upper end, and a hole 18 is formed slightly below the middle part, and the hole is formed on the front surface 19 side of the backrest rod B. A support ring 20 is provided protrudingly around the backrest rod B, and the tip protrusion 22 of the operation button 21 inserted from the outside into the through hole 11 of the backrest rod B is made to protrude forward from the hole 18. By engaging and supporting one end of a compression coil spring 23 as an elastic body between the support ring 20, and supporting the other end of the compression coil spring 23 in contact with the inner surface of the front surface 19 of the backrest lever B in a compressed state. , the claw piece 17 is always elastically biased in the direction in which it protrudes from the opening 10. Here, the operation button 21
In this embodiment, a collar portion 24 that can pass through the large hole 13 of the through hole 11 and that can be locked in the small hole 14 is integrally formed at the tip of the neck portion 25 that can pass through the small hole 14, and furthermore, the protrusion 22 protrudes from the center of the flange 24. Further, the length of the neck portion 25 of the operation button 21 is set to be sufficiently longer than the thickness of the back surface 8 of the backrest rod B, and the length of the neck portion 25 of the operation button 21 is
When inserted into the through hole 11 of the backrest rod B,
It allows you to move back and forth. Furthermore, on the upper part of the base plate 15, abutting pieces 26, 26 are extended to prevent lateral vibrations, so that they come into contact with the inner surfaces of both side surfaces 27, 27 of the backrest rod B in the event of lateral vibrations. I'm trying to stop it. Further, in this embodiment, the compression coil spring 23 is shown as the elastic body, but the present invention is not limited to this, and a plate spring, synthetic rubber, or the like can be used.
前記スライド杆Ｄは、前記背凭れ杆Ｂの上部直
線部７に上下スライド可能に外嵌し得るように、
断面略コ字形の両側板２８，２８の端縁を互いに
対向する方向に折曲して挾持片２９，２９を形成
し、また該両挾持片２９，２９の内縁に断面略Ｌ
字形の取付板３０，３０を延設し、該取付板３０
の上下には前記背凭れ板Ａの背板４にビス止めし
得るように取付孔３１，……を穿設し、そして前
記背凭れ杆Ｂの開口１０を設けた側と対応する前
記両側板２８，２８を連結する背板３２には前記
爪片１７を係合する複数の調節孔３３を上下に間
隔を隔てて形成している。 The slide rod D is fitted onto the upper straight portion 7 of the backrest rod B so as to be slidable up and down.
The end edges of the side plates 28, 28, which have a substantially U-shaped cross section, are bent in opposite directions to form clamping pieces 29, 29, and the inner edges of the clamping pieces 29, 29 are provided with a cross section of approximately L.
The mounting plates 30, 30 are extended, and the mounting plates 30
Attachment holes 31, . A plurality of adjustment holes 33, which engage the claw pieces 17, are formed vertically at intervals in a back plate 32 that connects the parts 28, 28.
尚、本実施例では前記スライド杆Ｄの上下スラ
イド移動を円滑となすために、前記背凭れ杆Ｂの
直線部７と前記スライド杆Ｄの間に低摩擦性のス
ライダーＥを介装してある。該スライダーＥは、
第２図及び第３図に示す如く前記背凭れ杆Ｂの背
面８及び両側面２７，２７に当接状態で嵌合でき
るように断面略コ字形に形成され、背凭れ杆Ｂの
背面８に形成された係合孔１２，１２に係合する
四角形の突起３４，３４を内部に突設して、背凭
れ杆Ｂに嵌合した場合に該背凭れ杆Ｂに対する移
動を規制するとともに、前記開口１０と対応する
位置に挿通孔３５を形成して、前記操作部材Ｃの
爪片１７が出没できるようになし、更に下縁には
フランジ状の当止部３６を周設して前記スライド
杆Ｄの過度の下方移動を規制している。 In this embodiment, a low-friction slider E is interposed between the straight portion 7 of the backrest rod B and the slide rod D in order to smoothly slide the slide rod D up and down. . The slider E is
As shown in FIGS. 2 and 3, it is formed into a substantially U-shaped cross section so that it can be fitted in contact with the back surface 8 and both side surfaces 27, 27 of the backrest rod B. Rectangular protrusions 34, 34 that engage with the formed engagement holes 12, 12 are protrudingly provided inside to restrict movement relative to the backrest lever B when it is fitted into the backrest lever B, and An insertion hole 35 is formed at a position corresponding to the opening 10 so that the claw piece 17 of the operating member C can move in and out, and a flange-shaped abutment part 36 is provided around the lower edge of the slide rod. The excessive downward movement of D is regulated.
しかして、組立てる場合は、第３図〜第６図に
示す如く、先ず背凭れ杆Ｂの上端開口から操作部
材Ｃの基板１５を挿入するが、この際該基板１５
の支持環２０内に圧縮コイルバネ２３の一端を係
合させ且つ他端を該背凭れ杆Ｂの前面１９内側に
圧縮状態で当接させた状態で、下方に移動させて
下端の支持部１６を該背凭れ杆Ｂの係止部９内に
挿入して前後傾動可能に支持するとともに、前記
操作ボタン２１を貫通孔１１の大孔１３から挿入
し、上方に移動させて該操作ボタン２１の首部２
５を小孔１４内に位置させ且つ鍔部２４を該小孔
１４口縁に係止すると同時に前記操作部材Ｃの孔
１８に先端の突起２２を係合させ、更に該突起２
２を前記圧縮コイルバネ２３の一端に内嵌して装
着する。この状態では、前記爪片１７が開口１０
内に位置し、基板１５の支持部１６は係止部９に
より下方への移動が規制され且つ該基板１５に連
係された操作ボタン２１の首部２５が前記貫通孔
１１の小孔１４上縁に当接して上方への移動が規
制されている。次に、前記スライダーＥを後方か
ら嵌合して、内部に突設した突起３４，３４を前
記背凭れ杆Ｂの係合孔１２，１２に係合させた状
態で、前記操作ボタン２１を押して前記爪片１７
を前記開口１０から没入させながら、操作部材Ｃ
の上端から前記スライド杆Ｄを外嵌し、そして操
作ボタン２１をフリーな状態にして前記爪片１７
を該スライド杆Ｄの調節孔３３に係合させる。
尚、該スライド杆Ｄの取付板３０，３０に、前記
背凭れ杆Ａの背板４を取付孔３１，……を用いて
ビス止め固定するが、この取付ける順序は該スラ
イド杆Ｄを背凭れ杆Ｂに装着する前後何れでも可
能である。 When assembling, the base plate 15 of the operating member C is first inserted through the upper opening of the backrest lever B, as shown in FIGS. 3 to 6.
One end of the compression coil spring 23 is engaged in the support ring 20 of the backrest rod B, and the other end is brought into contact with the inside of the front surface 19 of the backrest rod B in a compressed state, and the support part 16 at the lower end is moved downward. The backrest rod B is inserted into the locking part 9 and supported so as to be tiltable back and forth, and the operation button 21 is inserted through the large hole 13 of the through hole 11 and moved upward to lock the neck of the operation button 21. 2
5 in the small hole 14 and locking the flange 24 to the mouth edge of the small hole 14, the projection 22 at the tip is engaged with the hole 18 of the operating member C, and the projection 2
2 is fitted inside one end of the compression coil spring 23 and attached. In this state, the claw piece 17 is attached to the opening 10.
The supporting portion 16 of the substrate 15 is regulated from moving downward by the locking portion 9, and the neck portion 25 of the operation button 21 linked to the substrate 15 is positioned at the upper edge of the small hole 14 of the through hole 11. Abutment restricts upward movement. Next, with the slider E fitted from the rear and the protrusions 34, 34 protruding inside engaged with the engagement holes 12, 12 of the backrest rod B, the operation button 21 is pressed. The claw piece 17
While inserting the operating member C through the opening 10,
Fit the slide rod D from the upper end and release the operation button 21 to release the claw piece 17.
is engaged with the adjustment hole 33 of the slide rod D.
Note that the back plate 4 of the backrest rod A is fixed to the mounting plates 30, 30 of the slide rod D with screws using the mounting holes 31, . It is possible to attach it to the rod B either before or after it is attached.
こうして、通常は圧縮コイルバネ２３の弾性付
勢力により、下端を係止部９に支持された操作部
材Ｃの基板１５は後方に押され、その先端の爪片
１７は背凭れ杆Ｂの開口１０及びスライダーＥの
挿通孔３５から突出してスライド杆Ｄの所定高さ
の調節孔３３に係合しているが、該スライド杆Ｄ
即ち背凭れ板Ａの高さを調節する場合には、前記
操作ボタン２１を押して圧縮コイルバネ２３の弾
性力に抗して操作部材Ｃの基板１５を前傾させて
爪片１７と前記調節孔３３の係合状態を解除した
後、前記スライド杆Ｄを上下方向に移動させて所
定高さの調節孔３３を該爪片１７と一致させ、そ
して前記操作ボタン２１から指を離してフリーな
状態となして前記同様に爪片１７と調節孔３３を
係合させてその高さを維持するのである。 In this way, the base plate 15 of the operating member C, whose lower end is supported by the locking part 9, is normally pushed backward by the elastic biasing force of the compression coil spring 23, and the claw piece 17 at the tip of the base plate 15 is pushed backwards by the elastic biasing force of the compression coil spring 23. It protrudes from the insertion hole 35 of the slider E and engages with the adjustment hole 33 of the slide rod D at a predetermined height.
That is, when adjusting the height of the backrest plate A, press the operation button 21 to tilt the base plate 15 of the operation member C forward against the elastic force of the compression coil spring 23, so that the claw piece 17 and the adjustment hole 33 After releasing the engagement state, move the slide rod D in the vertical direction so that the adjustment hole 33 of a predetermined height is aligned with the claw piece 17, and then release the finger from the operation button 21 to return to the free state. As described above, the height is maintained by engaging the claw piece 17 with the adjustment hole 33.
また、第７図及び第８図に示すものは、操作部
材Ｃの基板１５と操作ボタン２１を連係させる他
の実施例を示し、ここでは、前記背凭れ杆Ａには
円形の貫通孔１１を形成し、操作ボタン２１の首
部２５は該貫通孔１１に遊挿し得る外径となし、
該首部２５に先端方向へ螺軸３７と突起２２を順
次縮径させて一体形成してあり、またそれに応じ
て操作部材Ｃの基板１５には前記螺軸３７を螺合
する螺孔３８を形成したものである。尚、前記操
作ボタン２１の突起２２に係合させる圧縮コイル
バネ２３の外径は前記螺孔３８の内径より小さく
設定している。この場合、組立てるには、前記操
作部材Ｃの基板１５を背凭れ杆Ｂに挿入した後、
操作ボタン２１の突起２２に圧縮コイルバネ２３
の一端を係合させた状態で、該圧縮コイルバネ２
３を外方から貫通孔１１、螺孔３８に順次挿通す
るとともに、該圧縮コイルバネ２３を圧縮状態と
なして操作ボタン２１の螺軸３７を前記螺孔３８
に螺合装着するだけで装着することが可能とな
る。 Moreover, what is shown in FIGS. 7 and 8 shows another embodiment in which the base plate 15 of the operating member C and the operating button 21 are linked, and here, the backrest rod A is provided with a circular through hole 11. The neck portion 25 of the operation button 21 has an outer diameter that allows it to be loosely inserted into the through hole 11,
A screw shaft 37 and a protrusion 22 are integrally formed on the neck portion 25 by sequentially reducing their diameters toward the distal end, and accordingly, a screw hole 38 into which the screw shaft 37 is screwed is formed in the base plate 15 of the operating member C. This is what I did. The outer diameter of the compression coil spring 23 engaged with the projection 22 of the operation button 21 is set smaller than the inner diameter of the screw hole 38. In this case, for assembly, after inserting the board 15 of the operating member C into the backrest lever B,
A compression coil spring 23 is attached to the protrusion 22 of the operation button 21.
With one end engaged, the compression coil spring 2
3 from the outside into the through hole 11 and the screw hole 38, the compression coil spring 23 is compressed, and the screw shaft 37 of the operation button 21 is inserted into the screw hole 38.
It can be installed by simply screwing it into the holder.
更に、第９図に示したものは、操作部材Ｃの基
板１５の下端を背凭れ杆Ｂの内部に前後傾動可能
に支持する構造の他の実施例を示し、ここでは前
記背凭れ杆Ｂの背面８を内側に切起して水平な係
止部９を形成し、前記操作部材Ｃの基板１５の下
端は前記背凭れ杆Ｂの直線部７の内部に内接する
径に曲折して支持部１６を形成し、該基板１５の
前後傾動をより円滑に行えるようにしている。 Furthermore, what is shown in FIG. 9 shows another embodiment of a structure in which the lower end of the base plate 15 of the operating member C is supported inside the backrest rod B so as to be tiltable back and forth. The back surface 8 is cut and bent inward to form a horizontal locking portion 9, and the lower end of the base plate 15 of the operating member C is bent to a diameter inscribed inside the straight portion 7 of the backrest rod B to form a support portion. 16, so that the substrate 15 can be tilted back and forth more smoothly.
尚、第１図及び第２図に示した３９は背凭れ杆
Ｂを覆うカバーである。 Note that 39 shown in FIGS. 1 and 2 is a cover that covers the backrest rod B.
以上にしてなる本考案の椅子の背凭れ板高さ調
節装置によれば、背凭れ杆の上端から挿入して背
面内側の係止部に操作部材の基板下端を前後傾動
可能に支持するとともに、先端の爪片を背凭れ杆
の開口から出没自在となして装着し、背凭れ杆の
貫通孔に挿入した操作ボタンの先端を操作部材の
基板中間部に連係させ、そして背凭れ杆の上部に
スライド杆を外嵌させて前記爪片を調節孔に係合
させるだけで、極めて容易に組立てることができ
るとともに、スライド杆を背凭れ杆にスライド可
能に外嵌したことから、長年使用しても背凭れ板
にかかる重量を確実にガタつきなく支持すること
ができ、また部品点数少なく且つ部品の加工が簡
単であることからコスト低減を図ることが可能
で、更に操作性においては、前記操作ボタンを、
該基板と背凭れ杆の前面との間に介在させた弾性
体の後方への弾性付勢力に抗して押し込み、スラ
イド杆及び背凭れ板を所定高さに設定した後、フ
リーの状態にするだけで、操作部材の爪片をスラ
イド杆の調節孔に係合させて確実にその高さを維
持することができるのである。
According to the chair back plate height adjusting device of the present invention as described above, the lower end of the base plate of the operating member is supported by the locking part on the inside of the back by being inserted from the upper end of the backrest rod so as to be tiltable back and forth, The claw piece at the tip is attached so that it can freely come out and go out from the opening of the backrest rod, and the tip of the operation button inserted into the through hole of the backrest rod is linked to the intermediate part of the board of the operation member, and then attached to the top of the backrest rod. It is extremely easy to assemble by simply fitting the slide rod onto the outside and engaging the pawl piece with the adjustment hole, and since the slide rod is slidably fitted onto the backrest rod, it can be used for many years. The weight on the backrest plate can be reliably supported without wobbling, and the number of parts is small and the processing of the parts is easy, so it is possible to reduce costs. Furthermore, in terms of operability, the operation button of,
Push against the rearward elastic urging force of an elastic body interposed between the base plate and the front surface of the backrest rod, set the slide rod and the backrest plate at a predetermined height, and then set them in a free state. By simply engaging the claw piece of the operating member with the adjustment hole of the slide rod, the height can be reliably maintained.
また、前記背凭れ杆とスライド杆の間にスライ
ダーを介装することにより、該スライド杆の上下
スライド案内を円滑に行うことができる。 Furthermore, by interposing a slider between the backrest rod and the slide rod, the slide rod can be smoothly guided up and down.
更に、背凭れ杆の貫通孔を大孔と小孔を連続さ
せた形状となし、操作ボタンに首部と鍔部を形成
したことにより、操作ボタン先端の突起を操作部
材の基板の孔に係合させた場合に、脱落すること
なく基板に連係させることができ、しかもその取
付作業を容易に行うことができ、更に基板と背凭
れ杆の前面との間に介装する圧縮コイルバネを確
実に取付けることができる。 Furthermore, the through-hole of the backrest rod is shaped like a continuous large hole and small hole, and the operation button is formed with a neck and a flange, so that the protrusion at the tip of the operation button engages with the hole on the base of the operation member. When installed, it can be connected to the board without falling off, and the installation work can be easily performed, and the compression coil spring interposed between the board and the front of the backrest lever can be securely installed. be able to.
そして、操作ボタンの先端の首部に先端方向に
螺軸と突起を順次縮径させて一体形成し、背凭れ
杆の貫通孔を首部が遊挿し得る円形となし、更に
操作部材の基板に螺孔を形成したことにより、操
作ボタンの突起に圧縮コイルバネの一端を係合さ
せた状態で、前記貫通孔及び螺孔から該圧縮コイ
ルバネを内部に挿通し、該螺孔に操作ボタンの螺
軸を螺合するだけで装着できるとともに、圧縮コ
イルバネを圧縮状態となして操作部材の基板を弾
性付勢することが同時に行えるものである。 Then, a screw shaft and a protrusion are integrally formed on the neck at the tip of the operation button by sequentially reducing the diameter toward the tip, and the through hole of the backrest rod is made into a circular shape into which the neck can be loosely inserted, and the base plate of the operation member is made with a screw hole. With one end of the compression coil spring engaged with the protrusion of the operation button, the compression coil spring is inserted into the through hole and the screw hole, and the screw shaft of the operation button is screwed into the screw hole. It can be installed by simply fitting it together, and at the same time, the compression coil spring can be compressed to elastically bias the base plate of the operating member.
第１図は本考案の背凭れ板高さ調節装置を組込
んだ椅子の全体斜視図、第２図は本考案の要部を
示す分解斜視図、第３図は組立てた状態の要部縦
断側面図、第４図は組立てた状態の要部の背面
図、第５図は第４図のＸ−Ｘ線省略断面図、第６
図は第４図のＹ−Ｙ線省略断面図、第７図は操作
部材の操作ボタンと基板の他の実施例を示す要部
の部分斜視図、第８図は同じく部分縦断側面図、
第９図は背凭れ杆の係止部と操作部材の支持部の
他の実施例を示す要部の部分縦断側面図である。
Ａ……背凭れ板、Ｂ……背凭れ杆、Ｃ……操作
部材、Ｄ……スライド杆、Ｅ……スライダー。１
……脚部、２……座部、３……クツシヨン、４…
…背板、５……裏カバー、６……屈曲部、７……
直線部、８……背面、９……係止部、１０……開
口、１１……貫通孔、１２……係合孔、１３……
大孔、１４……小孔、１５……基板、１６……支
持部、１７……爪片、１８……孔、１９……前
面、２０……支持環、２１……操作ボタン、２２
……突起、２３……圧縮コイルバネ（弾性体）、
２４……鍔部、２５……首部、２６……当止片、
２７……側面、２８……側板、２９……挾持片、
３０……取付板、３１……取付孔、３２……背
板、３３……調節孔、３４……突起、３５……挿
通孔、３６……当止部、３７……螺軸、３８……
螺孔、３９……カバー。
Figure 1 is an overall perspective view of a chair incorporating the backrest plate height adjustment device of the present invention, Figure 2 is an exploded perspective view showing the main parts of the invention, and Figure 3 is a longitudinal cross-section of the main parts in the assembled state. 4 is a rear view of the main parts in the assembled state, FIG. 5 is a cross-sectional view taken along the line X-X in FIG.
The figure is a sectional view omitted from the Y-Y line in FIG. 4, FIG. 7 is a partial perspective view of the main parts showing another embodiment of the operation button of the operation member and the board, and FIG. 8 is a partial vertical side view,
FIG. 9 is a partial longitudinal sectional side view of the main parts showing another embodiment of the locking part of the backrest rod and the supporting part of the operating member. A... Backrest plate, B... Backrest rod, C... Operating member, D... Slide rod, E... Slider. 1
...Leg, 2...Seat, 3...Cushion, 4...
... Back plate, 5... Back cover, 6... Bent part, 7...
Straight line part, 8...Back surface, 9...Locking part, 10...Opening, 11...Through hole, 12...Engagement hole, 13...
Large hole, 14...Small hole, 15...Substrate, 16...Support part, 17...Claw piece, 18...Hole, 19...Front surface, 20...Support ring, 21...Operation button, 22
...Protrusion, 23...Compression coil spring (elastic body),
24...Brim part, 25...Neck part, 26...Top piece,
27... side surface, 28... side plate, 29... clamping piece,
30... Mounting plate, 31... Mounting hole, 32... Back plate, 33... Adjustment hole, 34... Protrusion, 35... Insertion hole, 36... Stop portion, 37... Spiral shaft, 38... …
Spiral hole, 39...cover.
Claims (1)
なした管体で、背面内側の所定高さに係止部を
形成するとともに、その上方に所定距離を隔て
て開口を形成し、更に前記係止部と開口との間
に貫通孔を形成してなる背凭れ杆と、 前記背凭れ杆内部の係止部に基板の下端を前
後傾動可能に支持され、上端に前記開口から外
方へ出没する爪片を折曲形成し、中間部に前記
貫通孔に外方へ突出状態で挿入した操作ボタン
の先端を連係させるとともに、前記背凭れ杆の
前面との間に介在させた弾性体にて後方へ弾性
付勢してなる操作部材と、 前記背凭れ杆の上部にスライド可能に外嵌す
る杆体の両側に背凭れ板を固定する取付板を設
けるとともに、背面には前記操作部材の爪片を
係合する複数の調節孔を上下に所定間隔を隔て
て形成してなるスライド杆と、 よりなる椅子の背凭れ板高さ調節装置。 ２ 前記背凭れ杆の背面所定位置に開設した係合
孔に係合する突起を内部に突設するとともに、
前記開口と対応する位置に挿通孔を形成した断
面略コ字形のスライダーを、前記背凭れ杆の背
面及び両側面に当接状態で嵌合し、該スライダ
ーと背凭れ杆前面に前記スライド杆を外嵌して
なる実用新案登録請求の範囲第１項記載の椅子
の背凭れ板高さ調節装置。 ３ 前記背凭れ杆の背面に大孔と小孔を連続させ
た貫通孔を形成し、該大孔を通過でき且つ小孔
に係止し得る鍔部を小孔を挿通し得る首部の先
端側に一体形成するとともに、先端には前記操
作部材の基板中間部に形成した孔に挿入し得る
突起を形成した操作ボタンを用い、該操作部材
の基板前面側の前記孔の周囲に突設した支持環
の内部で該孔から突出した前記操作ボタンの突
起の周囲に圧縮コイルバネの一端を係合支持し
てなる実用新案登録請求の範囲第１項記載の椅
子の背凭れ板高さ調節装置。 ４ 前記背凭れ杆の背面に円形の貫通孔を形成
し、該貫通孔に遊挿し得る首部に先端方向へ螺
軸と突起を順次縮径させて一体形成してなる操
作ボタンを用い、前記操作部材の基板中間部に
形成した螺孔に前記操作ボタンの螺軸を螺合す
るとともに、前記突起に該螺孔に挿通可能な圧
縮コイルバネの一端を係合支持してなる実用新
案登録請求の範囲第１項記載の椅子の背凭れ板
高さ調節装置。[Scope of Claim for Utility Model Registration] 1. A backrest plate and a tube whose lower end is connected to a leg or a seat in an upright state, with a locking part formed at a predetermined height on the inside of the back. , a backrest rod having an opening formed at a predetermined distance above the backrest rod, and a through hole formed between the locking portion and the opening; and a lower end of the substrate at the locking portion inside the backrest rod. is supported so as to be tiltable back and forth, a claw piece is bent to protrude and retract outward from the opening at the upper end, and the tip of an operation button inserted in the through hole in an outwardly protruding state is connected to the middle part, and an operating member that is elastically biased rearward by an elastic body interposed between the front surface of the backrest rod; and backrest plates on both sides of the rod body that is slidably fitted onto the upper part of the backrest rod. A chair back plate height comprising: a mounting plate for fixing, and a slide rod having a plurality of adjustment holes vertically spaced apart from each other at predetermined intervals on the back surface to engage the claws of the operating member; Regulator. 2. A protrusion that engages with an engagement hole formed at a predetermined position on the back of the backrest rod is provided inside, and
A slider having a substantially U-shaped cross section with an insertion hole formed at a position corresponding to the opening is fitted into contact with the back and both sides of the backrest rod, and the slider is fitted between the slider and the front of the backrest rod. A chair back plate height adjusting device according to claim 1, which is fitted onto the outside of the chair. 3 A through hole in which a large hole and a small hole are connected is formed on the back surface of the backrest rod, and a flange portion that can pass through the large hole and that can be locked in the small hole is provided on the tip side of the neck portion that can be inserted through the small hole. and an operation button having a protrusion formed at the tip that can be inserted into a hole formed in the middle part of the board of the operating member, and a support protruding around the hole on the front side of the board of the operating member. 2. The chair back plate height adjusting device according to claim 1, wherein one end of a compression coil spring is engaged and supported around the protrusion of the operation button protruding from the hole inside the ring. 4. A circular through-hole is formed on the back surface of the backrest rod, and an operation button is integrally formed with a neck portion that can be loosely inserted into the through-hole and has a screw shaft and a protrusion that are sequentially reduced in diameter in the distal direction. Claims for registration of a utility model, in which the screw shaft of the operation button is screwed into a screw hole formed in the intermediate portion of the substrate of the member, and one end of a compression coil spring that can be inserted into the screw hole is engaged with and supported by the protrusion. The chair back plate height adjustment device according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13756688U JPH0523097Y2 (en) | 1988-10-20 | 1988-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13756688U JPH0523097Y2 (en) | 1988-10-20 | 1988-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257444U JPH0257444U (en) | 1990-04-25 |
| JPH0523097Y2 true JPH0523097Y2 (en) | 1993-06-14 |
Family
ID=31399102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13756688U Expired - Lifetime JPH0523097Y2 (en) | 1988-10-20 | 1988-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523097Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5378747B2 (en) * | 2008-10-16 | 2013-12-25 | 株式会社岡村製作所 | Chair |
-
1988
- 1988-10-20 JP JP13756688U patent/JPH0523097Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0257444U (en) | 1990-04-25 |
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