'1314444'1314444
九、發明說明： C發明所屬之技術領域3 發明領域 本發明有關於一種椅子的靠背裝置，在其中，_個在 5中央具有一個開孔的背架是由一個背板元件覆蓋俾可至少 部份地封閉該開孔。 發明背景 10 在JP2003-135200A號案中，特別是，在第3圖中，—個 彈性背板元件是被拉伸在一張椅子的靠背上面，而該背架 包含右和左側桿以及一個把該等側桿之上端彼此連接的橫 才干。個下^干具有嵌合有側桿的孔和一個縫隙。該背板_ 件在上緣以及在右和左側緣包含管狀部份。在該背^ _疋 的下端H個管狀安裝部份設置在該下桿的縫 包括不允許該背板元件變鬆馳的嵌合元件。IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION C FIELD OF THE INVENTION The present invention relates to a backrest device for a chair, in which a back frame having an opening in the center of 5 is covered by a back plate member. The opening is closed in portions. BACKGROUND OF THE INVENTION In the case of JP 2003-135200 A, in particular, in Fig. 3, an elastic back plate member is stretched over the backrest of a chair, and the back frame includes right and left side bars and a handle The horizontal ends of the upper ends of the side bars are connected to each other. The bottom has a hole with a side bar and a slit. The backsheet_piece includes a tubular portion at the upper edge and at the right and left edges. The slit provided at the lower end of the back _ 管状 by the tubular mounting portion of the lower rod includes a fitting member that does not allow the backing member to become slack.
杜钱符子的靠背中 20 你非H 恨米包 和該下桿’㈣背心件包含該上、右和左管^ 及在下端的管狀安裝部份，藉此使得該背板 : 雜、增加製造成本以及使得„板元_ 的、，、。構 安裝麻煩。 和下桿 【明内J 發明概要 有鑑於習知技術中的缺點 種椅子的靠背裝置，在其中， ，本發明之目的是為提供— -個背架是由—個背板元件 5 1314444 - 覆蓋，該背板元件的結構變簡單俾可使該背板元件的組裝 方便。 圖式簡單說明 " 第1圖是為包含本發明之靠背裝置之實施例之椅子的 ' 5 正視立體圖； • 第2圖是為該椅子的後視立體圖，顯示一個安裝部份和 一個後桿； 第3圖是為該椅子的垂直剖視圖，在其中，該靠背是處 ^ 於-個低位置； 10 第4圖是為該椅子的垂直剖視圖，在其中，該靠背是處 於一個高位置； 第5圖是為一個顯示一個背板元件是如何安裝到一個 • 背架的立體圖； 第6圖是為一個顯示該背板元件是如何安裝到一個固 15 持元件的立體圖；及 ^ 第7圖是為一個顯示該固持元件的垂直剖視圖。 C：實施方式3 較佳實施例之詳細說明 在第1圖中，一張椅子1包含一個在一個連接到椅腿2 20 之支柱4上的座椅5，和一個在該座椅5之後端的靠背6。該 ' 靠背6包含一個背架、後桿11和一個背板元件12。藉由把後 桿11安裝到一個安裝部份7，該靠背6是被鎖固到該座椅5。 該靠背6是被調整在適當的位置俾可向前和向下，或者向後 和向上移動。 6 ' 1314444 在第3和4圖中，這實施例的椅子i是供一個成長中兒童 使用該罪貪6疋藉著乘坐人員的重量來往該座椅$後面 縮。該靠背6是可相對於該座椅5來移動，以及向前和向下， 或者向後和向上滑動以致於該靠背6是被調整在適當的位 5置以符合乘坐人員的體形。 該支柱4的下端是連接到該等從支柱4經向地延伸出來 之椅腿2的上端。在該椅腿2的下端，一個小腳輪琳動來允 許椅子1在地面移動。鎖固到該靠背6的座椅是枢轴地安農 在該支柱4的軸上俾可水平地轉動。 1〇 較柱4是可伸縮的俾可允許在該支柱4上的座椅5與 稍後描述之罪背6的滑動無關地在高度上作調整。特別地， 該靠背6的滑動和該支柱4的上备下運動是被分別執行俾 可允許該座椅5的高度和該靠背6的位置作調整來遵從兒童 的成長。 15 然後，該靠背6將會詳細地作描述。在第2圖中，該靠 背6包含該背架1〇，該背架1〇包含一個上桿1〇a、右和左桿 10b，10b、一個下桿1〇(；和一個中央開孔κ ;在第丨圖中封閉 該背架10之開孔Κ的背板元件12 ;及一對後桿11，該對後桿 11自該下桿10c向前地延伸出來而且是連接到該座椅5的安 20 裝部份7。 在第3和4圖中’ 一個弧形部份10d是設置在該背架1〇 之右和左桿10b，10b中之每一者的中央俾可允許該弧形部 份10d的上半部向後縮。該後桿丨丨是與該背架10一起由塑膠 模鑄而成且自該下桿10c向前地延伸出來。 1314444Du Qianfuzi's backrest 20 You are not H hate rice bag and the lower rod '(four) vest piece contains the upper, right and left tube ^ and the tubular mounting part at the lower end, thereby making the back plate: miscellaneous, increase The manufacturing cost and the trouble of the installation of the board element, and the lower rod [the present invention is based on the disadvantages of the prior art, the backrest device of the chair, in which the object of the present invention is Providing - a back frame is covered by a backing plate member 5 1314444 - the structure of the backing plate member is simplified, and the assembly of the backing plate member is convenient. The simple description of the drawing "1" is included A '5 front perspective view of the chair of the embodiment of the inventive backrest device; • Fig. 2 is a rear perspective view of the chair showing a mounting portion and a rear bar; Fig. 3 is a vertical sectional view of the chair, in Wherein, the backrest is at a low position; 10 Fig. 4 is a vertical sectional view of the chair in which the backrest is at a high position; Fig. 5 is a view showing how a back panel member is mounted To one • back frame Fig. 6 is a perspective view showing how the backing member is mounted to a solid member; and Fig. 7 is a vertical sectional view showing the holding member. C: Embodiment 3 DETAILED DESCRIPTION In Fig. 1, a chair 1 includes a seat 5 attached to a strut 4 of a leg 2 20, and a backrest 6 at a rear end of the seat 5. The 'backrest 6 includes a The back frame, the rear bar 11 and a back plate member 12. By mounting the rear bar 11 to a mounting portion 7, the backrest 6 is locked to the seat 5. The backrest 6 is adjusted in position俾 can move forwards and downwards, or backwards and upwards. 6 ' 1314444 In Figures 3 and 4, the chair i of this embodiment is for a growing child to use the sin 6 疋 by the weight of the occupant The seat is retracted. The backrest 6 is movable relative to the seat 5, and is slid forward and downward, or backward and upward so that the backrest 6 is adjusted at an appropriate position 5 to fit the ride. The shape of the person. The lower end of the pillar 4 is connected to the slave The upper end of the leg 2 extending outwardly from the column 4. At the lower end of the leg 2, a caster is moved to allow the chair 1 to move on the ground. The seat locked to the backrest 6 is pivoted to the farm The crucible is horizontally rotatable on the shaft of the strut 4. The crucible 4 is telescopic, and the seat 5 on the strut 4 allows the seat 5 on the strut 4 to be height-independent regardless of the sliding of the sin 6 described later. In particular, the sliding of the backrest 6 and the up-down movement of the strut 4 are performed separately to allow the height of the seat 5 and the position of the backrest 6 to be adjusted to comply with the growth of the child. 15 Then, The backrest 6 will be described in detail. In Fig. 2, the backrest 6 includes the back frame 1〇, which includes an upper rod 1〇a, right and left rods 10b, 10b, and a lower rod 1 〇 (; and a central opening κ; a back plate member 12 that closes the opening Κ of the back frame 10 in the first figure; and a pair of rear bars 11 from the lower rod 10c forward It extends and is connected to the mounting portion 7 of the seat 5. In Figs. 3 and 4, an arcuate portion 10d is disposed at the center of each of the right and left bars 10b, 10b of the back frame 1〇, allowing the upper half of the curved portion 10d. Shrink back. The rear shank is molded of plastic together with the back frame 10 and extends forward from the lower rod 10c. 1314444
該背架10的右和左桿10b從下桿10c起朝該上桿1〇a遂 漸變細。該下桿10c和接近該下桿10c之右和左桿1〇b的部份 疋比該上桿10a和接近該上桿10a之右和左桿的部份 粗。硬度從弧形部份10d朝該下桿10c方向變得較高，而朝 該上桿10a方向變得較低。當重量由乘坐人員施加到靠背6 時，該上桿10和該右與左桿l〇b的上部在該下桿1〇c和該右 與左桿10b之下部不可能收縮時是很可能收縮來改進緩衝 性能。特別是，在靠背ό中把下桿10c連接到該後桿n的部 份是遭遇大的負載，但能夠穩固地完成。 15 該後桿11包含一個從背架10之下桿1〇c偏斜出來的偏 向部份11a ;和一概伸部份llb，該延伸部份llb是相對於 地板以-個像是大約24度之小於45度且比該偏向部份& 溫和的特定角度傾斜。該延伸部份llb沿著該特定角度滑動 俾可允許該靠背6向前和向下，或者向後和向上移動。The right and left rods 10b of the back frame 10 are tapered from the lower rod 10c toward the upper rod 1A. The lower rod 10c and a portion 疋 close to the right and left rods 1b of the lower rod 10c are thicker than the upper rod 10a and a portion close to the right and left rods of the upper rod 10a. The hardness becomes higher toward the lower rod 10c from the curved portion 10d, and becomes lower toward the upper rod 10a. When the weight is applied to the backrest 6 by the occupant, the upper portions of the upper rod 10 and the right and left rods lb are likely to contract when the lower portion 1c and the lower portion of the right and left rods 10b are unlikely to contract. To improve buffer performance. In particular, the portion in which the lower rod 10c is attached to the rear rod n in the backrest is subjected to a large load, but can be stably performed. 15 The rear rod 11 includes a deflecting portion 11a which is deflected from the lower rod 1c of the back frame 10; and a protruding portion 11b which is about 24 degrees with respect to the floor. It is less than 45 degrees and is inclined at a specific angle that is milder than the deflecting portion & The extended portion 11b slides along the specific angle to allow the backrest 6 to move forward and downward, or backward and upward.
20 然後，該後桿11是如何絲於該絲部份7將會配合第 圖中的部份放大圖來作說明。在該後桿u之延伸部份山 =向表面上，-個齡凸體15是在該延伸部份仙的縱長 方向上延伸。數㈣合槽16是在該喷合凸體15的縱長方向 ^伸°料始槽16是互相平行設置Μ當從侧面看該 唾合凸體15時看來像一個溫和的弧形。 3 另 彳面，該安裝部份7包含—_定到該座椅5之下 的基座-録該歸5之下細與縣脚之間的 口:件21;和-個驗把_合_21移動向上和向下 的運作元件22。該基座20像-個盒子，其裝配在右和左延 8 1314444 - 伸部份lib和lib之間。在該基座2〇的右和左側，該等响合 凸體15裝配在槽23内。 該運作元件22包含一個與該嚙合元件21之陰性螺紋嚙 合的陽性螺紋28，和一個設於該陰性螺紋之下端的旋鈕 • 5 29。該旋鈕29被轉動來允許該嚙合元件21在基座2〇内向上 . 和向下移動。在第2圖中該旋紐29自該座椅5向下地突伸。 為了人員能夠調整該靠背6 ’該旋鈕29被轉動來允許該 φ 嚙合元件21向上移動。然後，一個嚙合凸塊26自該嚙合槽 16脫離俾可允迕该等唾合凸體15在槽23内滑動。在該情況 10中，人員握住3亥靠背6並且把它向前和向下，或者向後和向 上移動俾可致使該靠背6適合該人員的體形。 要固定該靠背，該旋鈕29被轉動俾可允許該嚙合元件 • 21向下移動。然後，該嚙合凸塊26嵌合在該嚙合槽16俾可 允許在沒有滑動下該嚙合凸體15被固定在槽23内。 15 用於把背板元件12安装到背架10的結果將會配合第 • 5、6和7圖來作描述。該背板元件12包含一個由網狀布製成 的袋而且在形狀上對應於該背架1〇。 在第5圖中，該背板元件12開口在下端而且具有一個向 下逐漸變窄的連接部份12a。該連接部份12a的下緣12b是比 2〇該下桿l〇c窄，而一塊板3〇是被縫接到該下緣12b。 該下桿10c具有一個嵌合支柱31。在該嵌合支柱31的底 邛31a，疋有一個貫孔33，一個作用如嵌合元件的螺栓32是 向上穿過該貫孔33。該貫孔33是被形成接近該後桿n和該 下桿10c的連接部份。 9 1314444 一個固持元件34是安裝到該背板元件12且與該下桿 l〇c的嵌合支柱3丨嵌合。在第6和7圖中，該固持元件34的下 端是對應於該嵌合支柱31的底部31a。再者，一個穿孔35是 形成在該固持元件34的下端34a。一個作用如陰性元件的螺 5帽36是嵌合在一個螺帽槽37内。 在第7圖中’於固持元件34的後端，一個固持凹槽38 在固持元件34的縱長方向延伸並且固持該背板元件12之安 # 裝有該板30的下緣i2b。該固持元件34的凸塊39面向該固持 凹槽38。 1〇 然後，該背板元件12如何被設定將會作說明。在第5 - 圖中，該背架10是由談背板元件12覆蓋。該背架1〇之開孔κ 的大部份被封閉。 該背板元件12之連接部份I2a的下緣12b是藉在第ό圖 中的板30來被固持在該固持元件μ的固持凹槽38内。該連 15接部份12a是環繞在該固持元件34的凸塊39四周。 • 在第7圖中，該背板元件12的下緣12b是由該固持元件 34固持，該固持元件34嵌合在該下桿10c的嵌合支柱31上。 該螺栓32的上端嚙合在該固持元件34之螺帽槽37内的螺帽 36中。 20 該背板元件12比該背架1〇短。該螺栓32被旋緊俾可允 許該固持元件34向下延伸。該背板元件12是因螺栓32之旋 緊力而繃緊地設置在該背架10上。 在本實施例中之椅子1的靠背6中，該背板元件12是被 製作成一個開口在下端的袋子；該背架1〇除了下端之外是 1314444 _ 由該背板元件12覆蓋；且該背板元件12的下端12b是由該嵌 合在位於該背板元件12之下端之嵌合支柱31的固持元件34 固持。忒背板元件12是被製作成一個袋子，藉此降低該背 板元件12的製造成本、輕易地把該背板元件12設置在該背 • 5架1〇的大部份上面、以及允許該背板元件12的下緣12b藉該 固持元件34來嵌合在該嵌合支柱31内俾可使該背板元件12 的安裝方便。 • 在該背板元件12藉著該把固持元件3 4嵌合在位於背架 10之下端之嵌合支柱31内之螺栓32的旋緊力來被拉伸時， 10該固持元件34藉該螺栓32來被固定到該嵌合支柱31，藉此 防止該背板元件12變鬆驰。 該固持凹槽38是形成在該固持元件34内俾可固持該背 板元件12的摺折下緣12b。因此，該摺折背板元件12是被固 持在該固持元件34内，藉此施加張力到該背板元件丨]。乘 15坐人員作用到背板元件12的重量使得該背板元件丨2的下緣 ^ 12b難以自該固持凹槽38脫離。 該背板元件12之連接有該板30的下緣12b是被固持在 該固持凹槽38内。該背板元件12的下緣12b是藉著該板3〇來 被固持在該固持凹槽38内，藉此使得該背板元件12易於連 20 接到該固持元件34及使得該背板元件12的下緣12b難以自 ' 該固持凹槽38脫離。 該背板元件12比該背架10短俾可允許該背板元件12在 該固持元件34被固持在該嵌合支柱31内時被拉伸，藉此使 得張力易於施加到該背板元件12。 11 1314444 置玫有該螺栓32的貫孔33是形成在該下桿10c連接到 該後桿11的位置附近俾可允許該固持元件3 4扮演一個加強 ' δ亥右和左後桿11互相連接的角色，藉此改進該右和左後桿20 Then, how the rear rod 11 is wired will be explained in conjunction with a partial enlarged view of the drawing. On the extended portion of the rear rod u, the --aged projection 15 extends in the longitudinal direction of the extended portion. The number (four) groove 16 is formed in the longitudinal direction of the spray projection 15 and the groove 16 is disposed in parallel with each other. When viewed from the side, the salvage projection 15 looks like a gentle arc. 3 In addition, the mounting portion 7 includes a _ base that is positioned below the seat 5 - the port between the lower part of the lower part and the county foot is recorded: a piece 21; and a test _ _21 moves the up and down operating elements 22. The base 20 is like a box that fits between the right and left extensions 8 1314444 - the extension between lib and lib. On the right and left sides of the base 2'', the same convex protrusions 15 are fitted in the slots 23. The operating member 22 includes a male thread 28 that engages a female thread of the engaging member 21, and a knob (529) disposed at a lower end of the female thread. The knob 29 is rotated to allow the engagement element 21 to move upwardly and downwardly within the base 2〇. In the second figure, the knob 29 projects downward from the seat 5. For the person to adjust the backrest 6' the knob 29 is rotated to allow the φ engaging member 21 to move upward. Then, an engaging projection 26 is disengaged from the engaging groove 16 to allow the salivating projections 15 to slide in the groove 23. In this case 10, the person holding the 3 ft back 6 and moving it forward and downward, or moving backward and upward, can cause the backrest 6 to fit the person's body shape. To secure the backrest, the knob 29 is rotated to allow the engagement member 21 to move downward. Then, the engaging projection 26 is fitted in the engaging groove 16 to allow the engaging projection 15 to be fixed in the groove 23 without sliding. 15 The results for mounting the backing member 12 to the back frame 10 will be described in conjunction with Figures 5, 6 and 7. The backing member 12 includes a bag made of a mesh cloth and corresponds in shape to the back frame 1〇. In Fig. 5, the backing member 12 is opened at the lower end and has a connecting portion 12a which is gradually narrowed downward. The lower edge 12b of the connecting portion 12a is narrower than the lower rod 10c, and a plate 3'' is sewn to the lower edge 12b. The lower rod 10c has a fitting post 31. At the bottom 邛 31a of the fitting post 31, there is a through hole 33 through which a bolt 32 acting as a fitting member is passed upward. The through hole 33 is a connecting portion formed to be close to the rear rod n and the lower rod 10c. 9 1314444 A holding element 34 is mounted to the backing plate member 12 and is fitted to the fitting post 3' of the lower rod 10c. In Figs. 6 and 7, the lower end of the holding member 34 corresponds to the bottom portion 31a of the fitting post 31. Further, a through hole 35 is formed at the lower end 34a of the holding member 34. A screw 5 cap 36 acting as a female member is fitted into a nut slot 37. In Fig. 7, at the rear end of the holding member 34, a holding recess 38 extends in the longitudinal direction of the holding member 34 and holds the lower edge i2b of the back plate member 12. The projection 39 of the holding member 34 faces the holding recess 38. 1〇 Then, how the backplane component 12 is set will be explained. In the fifth embodiment, the back frame 10 is covered by the backing plate member 12. Most of the opening κ of the back frame 1 is closed. The lower edge 12b of the connecting portion I2a of the backing member 12 is held in the holding recess 38 of the holding member μ by the plate 30 in the first drawing. The connecting portion 12a is surrounded by the projections 39 of the holding member 34. • In Fig. 7, the lower edge 12b of the backing member 12 is held by the holding member 34, and the holding member 34 is fitted to the fitting post 31 of the lower rod 10c. The upper end of the bolt 32 engages in a nut 36 in the nut groove 37 of the retaining member 34. 20 The backing member 12 is shorter than the back frame 1 . The bolt 32 is screwed to allow the retaining member 34 to extend downwardly. The backing member 12 is tautly disposed on the back frame 10 by the tightening force of the bolts 32. In the backrest 6 of the chair 1 in this embodiment, the backing member 12 is a bag that is formed as an opening at the lower end; the back frame 1 is 1314444 _ covered by the backing member 12 except for the lower end; The lower end 12b of the backing member 12 is held by the holding member 34 fitted to the fitting post 31 at the lower end of the backing member 12. The backboard member 12 is fabricated as a bag, thereby reducing the manufacturing cost of the backing member 12, easily placing the backing member 12 over a majority of the back, and allowing the The lower edge 12b of the backing member 12 is fitted into the fitting post 31 by the holding member 34, so that the mounting of the backing member 12 can be facilitated. • When the backing plate member 12 is stretched by the tightening force of the bolt 32 that fits the holding member 34 into the fitting post 31 at the lower end of the back frame 10, the retaining member 34 borrows A bolt 32 is attached to the fitting post 31, thereby preventing the backing plate member 12 from becoming slack. The retaining recess 38 is formed in the retaining member 34 to retain the folded lower edge 12b of the backing member 12. Thus, the folded backing member 12 is retained within the retaining member 34, thereby applying tension to the backing member. The weight applied to the backing member 12 by the rider 15 makes it difficult for the lower edge ^ 12b of the backing member 丨 2 to be detached from the holding recess 38. The lower edge 12b of the backing plate member 12 to which the plate 30 is attached is held in the holding groove 38. The lower edge 12b of the backing member 12 is retained within the retaining recess 38 by the tab 3, thereby allowing the backing member 12 to be easily attached to the retaining member 34 and the backing member The lower edge 12b of 12 is difficult to disengage from the retaining recess 38. The backing member 12 is shorter than the back frame 10 to allow the backing member 12 to be stretched while the retaining member 34 is retained within the nesting post 31, thereby allowing tension to be easily applied to the backing member 12. . 11 1314444 The through hole 33 of the bolt 32 is formed near the position where the lower rod 10c is connected to the rear rod 11, and the holding member 34 is allowed to act as a reinforcement'. The right and left rear rods 11 are connected to each other. Role to improve the right and left rear bars
Ub，llb經由該下桿10c和該固持元件34來彼此連接的強度。 . 當該袋-狀背板元件12被拉伸在該背架1〇上面時，該背 架10的開孔K是由雙網狀布封閉俾可使得即使是弱且便宜 的網狀布能夠保持該背板元件12的強度。 Φ 在下桿10c開口向前和向上的嵌合支柱31和該背板元 件12的連接部份12a是環繞在該固持元件34的凸塊％四 1〇周。因此，當從後面看該椅子時，在該固持元件34與該下 桿之間的邊界是由該背板元件12隱藏，藉此改進該椅子 1的外觀。 本發明的實施例是配合該等圖式作說明，但是詳細結 構不被限制為這樣。改變和新增可以在沒有離開主 15範圍的範圍下被完成。 • 例如，該椅子之靠背之結構的實施例是僅應用到供成 長中兒童用的椅子，但是就該安裝到靠背6之背架1〇的袋狀 背板元件12而言，其可以應用到成人的辦公椅。 【圖式簡單說明】 . 20 第1圖是為包含本發明之靠背裝置之實施例之椅子的 正視立體圖； 第2圖疋為§亥椅子的後視立體圖’顯示一個安襄部广和 一個後桿； 第3圖是為該椅子的垂直剖視圖，在其中，該靠背是處 12 1314444 於一個低位置； 第4圖是為該椅子的垂直剖視圖，在其中，該靠背是處 於一個高位置； 第5圖是為一個顯示一個背板元件是如何安裝到一個 5 背架的立體圖； 第6圖是為一個顯示該背板元件是如何安裝到一個固 持元件的立體圖；及 第7圖是為一個顯示該固持元件的垂直剖視圖。The strength at which Ub, llb are connected to each other via the lower rod 10c and the holding member 34. When the bag-like back plate member 12 is stretched over the back frame 1 , the opening K of the back frame 10 is closed by a double mesh cloth, so that even a weak and inexpensive mesh cloth can The strength of the backing plate member 12 is maintained. The connecting portion 12a of the fitting post 31 and the backing member 12 which are forward and upward in the opening of the lower rod 10c are the circumferences of the projections of the holding member 34. Therefore, when the chair is viewed from the rear, the boundary between the holding member 34 and the lower bar is hidden by the back plate member 12, thereby improving the appearance of the chair 1. Embodiments of the present invention are described in conjunction with the drawings, but the detailed structure is not limited thereto. Changes and additions can be made without departing from the main 15 range. • For example, the embodiment of the structure of the backrest of the chair is applied only to a chair for growing children, but for the bag-shaped backing member 12 mounted to the back frame 1 of the backrest 6, it can be applied to Adult office chair. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front perspective view of a chair including an embodiment of a backrest device of the present invention; Fig. 2 is a rear perspective view of a §hai chair showing an ampoule and a rear Figure 3 is a vertical cross-sectional view of the chair in which the backrest is at 12 1314444 in a low position; Figure 4 is a vertical cross-sectional view of the chair in which the backrest is in a high position; Figure 5 is a perspective view showing how a backplane component is mounted to a 5 back frame; Figure 6 is a perspective view showing how the backplane component is mounted to a holding component; and Figure 7 is a display A vertical cross-sectional view of the holding element.
I 【主要元件符號說明】 1 椅子 11a 傾斜部份 2 椅腿 lib 延伸部份 3 小腳輪 12 背板元件 4 支柱 12a 連接部份 5 座椅 12b 下緣 6 靠背 15 嚙合凸體 7 安裝部份 16 响合槽 10 背架 20 基座 10a 上桿 21 响合元件 10b 右桿(左桿） 22 運作元件 10c 下桿 23 槽 10d 孤形部份 26 喃合凸塊 11 後桿 28 陽性螺紋 13 -1314444I [Description of main component symbols] 1 Chair 11a Tilting part 2 Leg lib Extension part 3 Caster 12 Back panel component 4 Pillar 12a Connecting section 5 Seat 12b Lower edge 6 Backrest 15 Engagement projection 7 Mounting section 16 Ringing groove 10 Back frame 20 Base 10a Upper rod 21 Ringing element 10b Right rod (left rod) 22 Operating element 10c Lower rod 23 Slot 10d Solitary part 26 Mercing projection 11 Rear rod 28 Positive thread 13 -1314444
29 旋紐 35 穿孔 30 板 36 螺帽 31 嵌合支柱 37 螺帽槽 31a 底部 38 固持凹槽 32 螺栓 39 凸塊 33 貫孔 K 開孔 34 固持元件 34a 下端29 Knob 35 Perforation 30 plate 36 Nut 31 Fitting post 37 Nut groove 31a Bottom 38 Retaining groove 32 Bolt 39 Bump 33 Through hole K Opening 34 Holding element 34a Lower end