M320333 八、新型說明： 【新型所屬之技術領域】 本創作係屬於一種搖椅，尤指一種調整式搖椅，其可 調整靠腳支架相對椅座之間的角度並且以堅固可靠的方式 固定該角度。 工 ' 【先前技術】 - 搖椅普遍使用於居家環境中，其結構係主要在一般的 ⑩座椅椅腳上加裝左右二弧形桿，該等弧形桿係接觸地面， 令搖椅可作前後擺動，乘坐在搖椅上的使用者可藉此獲得 一種規律擺盪的特殊感受。 傳統的搖椅雖然具有擺動等功能，惟其不具椅背及靠 腳的微調功效，因此有人以四連桿結構分別作為搖椅的椅 2支架、椅座支架、扶手支架及靠腳，藉此令椅背及靠腳 得以調整角度，此外，更在四連桿上設置有一定位裝置， 該疋位裝置係一種位於其中兩連桿樞接處的防滑片，該防 # 滑片提供摩擦力俾使該等連桿不得任意相對轉動，藉^定 位四連桿彼此間的相對角度。 . 惟，上述以防滑片作為定位效果並不可靠，當使用者 重量過重’或者擺動搖椅的力量過大時，防滑片所提供的 摩擦力將不足以提供定位效果，最後將會造成搖椅意外地 改變連桿間角度，甚至塌陷而令使用者摔落地面。 【新型内容】 本創作人有鑑於四連桿式搖椅透過防滑片的定位效果 不佳，改良其缺失與不足，進而創作出一種調整式搖椅。 M320333 本創作主要目的係提供一種調整式搖椅，其可其可調 整靠腳相對椅座之間的角度並且以堅固可靠的方式固定該 角度，避免搖椅任意改變狀態而遭致使用者受傷。 為達上述目的，係令前述調整式搖椅包含有： 一椅座支架’係呈長條狀而左右相對； 一椅背支架，係s u形，具彳二側桿，各側桿末端係 分別槐設在該等椅座支架的後端；M320333 VIII. New description: [New technical field] This creation belongs to a rocking chair, especially an adjustable rocking chair, which can adjust the angle between the footrest and the seat and fix the angle in a firm and reliable manner. [Previous technology] - Rocking chairs are commonly used in home environments. The structure is mainly equipped with two left and right curved rods on the general 10 seat legs. These curved rods touch the ground and make the rocking chair front and rear. Swinging, users riding on the rocking chair can get a special feeling of regular swing. Although the traditional rocking chair has the functions of swinging, etc., it does not have the function of fine adjustment of the back of the chair and the foot. Therefore, the four-bar linkage structure is used as the chair 2 bracket of the rocking chair, the seat bracket, the armrest bracket and the abutment, thereby making the seat back And adjusting the angle by the foot, in addition, a positioning device is further disposed on the four-link, the clamping device is an anti-slip piece located at the pivotal connection of the two links, and the anti-slip provides frictional force to enable the The connecting rods must not be rotated arbitrarily, and the relative angles of the four links to each other can be located. However, the above-mentioned anti-slip sheet is not reliable. When the user is overweight or the strength of the swinging chair is too large, the friction provided by the anti-slip sheet will not be sufficient to provide a positioning effect, which will eventually cause the rocking chair to change unexpectedly. The angle between the links, even collapsed, causes the user to fall to the ground. [New content] The creator has created a kind of adjustable rocking chair in view of the poor positioning effect of the four-link rocking chair through the anti-slip sheet, improving its lack and deficiency. M320333 The main purpose of this creation is to provide an adjustable rocking chair that can be adjusted to the angle between the foot and the seat and to fix the angle in a strong and reliable manner to prevent the rocker from being arbitrarily changed and causing injury to the user. In order to achieve the above purpose, the above-mentioned adjustable rocking chair comprises: a seat bracket' is elongated and opposite to the left and right; a seat back bracket is su-shaped, with two side bars, and the ends of the side bars are respectively Provided at the rear end of the seat brackets;
一扶手支架，係呈長條狀而左右相對，該等扶手支架 後端分別樞設在椅背支架的兩側桿上； 一靠腳支架，係呈U形，具有二側桿，該等側桿末端 分別樞設在各扶手支架前端，該等侧桿分別樞設在椅座支 架的前端； 登疋位裝置，係設置在相An armrest bracket is elongated and oppositely left and right, and the rear ends of the armrest brackets are respectively pivoted on the rods on both sides of the back bracket; the foot brackets are U-shaped and have two side rods, the sides The ends of the rods are respectively pivoted at the front ends of the armrest brackets, and the side rods are respectively pivoted at the front end of the seat brackets;
^及靠腳支架的側桿上，且具有—固^座、—調整桿及 :定位螺紋桿，該固定座係柩設在該椅座支架上並具有一 累孔1¾㉟整才干上端係樞設在扶手支架前端與靠腳支 架側桿，末端的樞接處，且以可滑動方式穿設在固定座 2該定位螺紋桿係設置在螺孔内並可以内側端緊 整桿側壁； 布料’係伸展設置在椅座支牟 直㈣厓支木椅*支架以及靠腳 八之間，以便形成搖椅的椅座、椅背及靠腳，可供 者坐臥；及 ’、又用 二弧桿組件， 組件係包含有至少 係分別設置在椅座支架底部’各弧形桿 二支撐桿及一弧桿，該等支撐桿上端係 5 M320333 設置在椅座支架底部，該弧桿係設置在該等支撐桿底端， 並可與地面接觸。 藉由上述技術手段，上述的椅座支架、椅背支架、扶 手支架及靠腳支架共同構成四連桿機構，調整定位裝置的 定位螺紋桿可以其内側端迫緊在調整桿的側壁，藉此將調 整桿定位於固定座上，此時與調整桿相樞設的扶手支架與 靠腳支架側桿之間夾角被固定，從而固定四連桿機構之間 的各夾角，故搖椅的結構將固定而無法改變，避免搖椅因 使用者的重量或動作而意外塌陷。 前述調整桿相對定位螺紋桿的一側上沿軸向形成有一 列定位凹部，該等定位凹部可供定位螺紋桿伸入以定位調 整桿與固定座之間的相對位置。 刖述各弧桿的前後兩端上分別樞設有一可單向旋轉的 撐立腳，當各弧桿的兩撐立腳末端位於向下位置時，撐立 腳末端低於弧桿最低處而可撐起弧桿，並且令搖椅定位而 不擺動。 、 前述各撐立腳與相對應的弧桿前端或後端之間係分別 •透過一棘輪組件相樞接，各棘輪組件係包含有一内棘輪、 一外棘輪、一固定桿及一彈簧，該内棘輪係固設在相對應 的弧才干刖端或後端，且具有一固定孔，在内棘輪的外側端 上形成有複數呈環狀排列的内棘齒，該外棘輪係固設在相 對應的撐立腳一端上，且具有一穿孔，在外棘輪上形成有 一彈簀槽，在外棘輪的内侧端上形成有複數呈環狀排列並 與可内棘齒相結合的外棘齒，該固定桿係穿過該外棘輪穿 M320333 孔且設置於内棘輪固定孔内，在固定桿外側端上形成有一 擋卩該彈簣係穿套在該固定桿上，設置於該彈篑槽内， 且兩端分別抵靠擋部及彈簧槽内壁，迫使外棘輪與内棘輪 相結合。 别述各弧桿前端與後端的撐立腳所能旋轉的方向相 • 反。 、 前述兩弧桿之間係固設有至少一支撐橫桿。 _ 前述各扶手支架上分別設置有一扶手墊，該扶手墊以 彈性材料製造。 【實施方式】 請參照第一圖，本創作調整式搖椅係包含有：二椅座 支2(10)、一椅背支架（2〇)、二扶手支架（3〇)、 一罪腳支架（4〇)、-調整定位裝置（50)、一布料 (7 〇 )、二弧桿組件（6 〇 )及至少一支撐橫桿（8 〇 )。 該等椅座支架（1 0 )係呈長條狀 而左右相對。 ❿ ^ =椅背支架（2 0 )，係呈u形，具有二側桿，各側 才干末端（2 1 )係分別樞設在該等椅座支架（工〇 )的 .端（1 2 )。 該等扶手支架（3 0 )係呈長條狀而左右相對，該等 扶手支架（3 0 )後端（3 2 )分別樞設在椅背支架（2 〇 )的兩側桿上與末端（2 i )相距特定距離之處，此外， 各扶手支架（30)上分別設置有-扶手塾（3 5)，該 扶手墊（3 5 )以彈性材料製造。 5亥靠腳支架（4 0 )係呈U形，具有二侧桿’該等侧 7 M320333 桿末端（41)分別樞設在各扶手支架（3〇)前端（3 1)，該等側桿上相距末端（41) 一特定㈣處分㈣ 設在椅座支架（10)的前端（11)。 請參照第二A與第二B圖，該調整定位裝置（5〇) 係設置在相對應的椅座支架（i 〇 )、扶手支架（3 〇 ) 及靠腳支架（40)的側桿上，且具有一固定座（51)、 一調整桿（5 2 )及-定位螺紋桿（5 3 );該固定座（5 1 )係樞設在該對應的椅座支架（i 〇 )上並具 的縱向貫孔（5 1 1 )及一盥貫孔r、η 向螺孔（512);該調整桿（52)上端係枢設在該對 w的扶手支术（3〇)前端（3 1)與靠腳支架（4〇) 側才干末端（4 1 )的樞接處，且以可滑動方式穿設在固定 H 5 1 )的貫孔（5 i工）内；該定位螺紋桿（5 3) 广、置在螺孔（5工2 )内並可以内側端緊抵該調整桿（5 2 )側邊’蚊位螺紋桿（5 3 )外側端固設有一旋紐（5 3 1 )以方便供使用者手握該旋紐（5 3工）而旋轉該定 <累紋# ( 5 3 );在-較佳實施實施例中，該調整桿（5 相對定位螺紋桿（5 3 ) ^一側上沿軸向形成有一 b21)，该專疋位凹部（521)可供定 位螺紋桿（q q ^ b 3 )伸入以定位調整桿（5 2 a )與固定座 ^ )之間的相對位置，如第二B圖所示。 背支=布料（7 〇 )係伸展設置在椅座支架（1 〇 )、椅 ,,^ ( 2 〇 )以及靠腳支架（4 0 )之間，以便形成搖 椅的椅座、捭推 者及Α腳，可供使用者坐臥，此外，該布料 8 M320333 ('〇 )可為人造材質或是天然纖維。 “、、第一圖’該等弧桿組件（6 0 )係、分別設置在 椅座支架（1〇)底邱々 』又置在 樓桿（6工）（γ，—各弧形桿組件係包含有至少二支 ) 弧桿（6 3 )，該等支撐桿（6 桿（63)你上端係設置在椅座支架（1〇)底部’該弧 係設置在該等切桿（61) (62) 並可與地面接觸， " 擺動。 弧6 3 )呈圓弧形故可令搖椅前後 該支料#( 8 〇 )係固設在兩弧桿之間，如第 尸/f不〇 -月參照第二與第四圖，當使用者欲調整椅背及靠腳的 可轉動調整定位裝置（5〇)的独（531)來 不二：桿（53)，此時調整桿（ 5 2 ) ( 5 2 a) 又疋立螺紋桿（53)的迫緊而可相對固定座（5 1) 來改變扶手支架（3〇)與靠腳支架（4〇)之 ^的^角大小’若令夹角增大，則可令椅背及靠聊趨於攤 時搖椅則可供臥躺，最後復將定位螺紋桿 方疋緊以固定調整桿（5 2 ) f e aα 椅重新定型。 （52a)的位置，藉此將搖 明二照第五、第六A及第六B圖，較佳者，各弧桿（6 的則後兩端上分別樞設有一可單向旋轉的撐立腳（6 田各弧#(63)的兩撐立腳（65)末端位於向 =時’揮立腳（65)末端低於弧桿（63)最低處 可揮起弧桿（53)，並且令搖椅定位而不擺動，此外， 9 M320333 弧桿（5 3 )前端與後端的揮立腳（6 3)所能旋轉的方 向係相反。 此外，各撺立腳（6 5 )與相對應的弧桿（6 3 )前 端或後端之間係分別透過-棘輪組#相樞接，各棘輪^ =包含有-内棘輪（6 4 )、—外棘輪（6 6 )…固定 杯（6 7 )及一彈簧（6 8 );該内棘輪（6 4 )係固設 在相對應的弧桿（6 3 )前端或後端，且具有一固定孔: 在内棘輪（6 4 )㈣侧端上形成有複數呈環狀排列的内 棘U； ( 6 4 1 )，該外棘輪（6 6 )係固設在相對應的撐 立腳（6 5) —端上，且具有一穿孔，在外棘輪（6 6) 上形成有一與穿孔相連通的彈簧槽（6 6 2 )，在外棘輪 (6 6 )的内側端上形成有複數呈環狀排列並與可内棘齒 (6 4 1 )相結合的外棘齒（6 6；該固定桿（6 7 ) 係穿過該外棘輪（ββ)穿孔且設置於内棘輪（64)固 定孔内，在固定桿（6 7 )外側端上形成有一擋部（6 7 工）；該彈簧（68)係穿套在該固定桿（67)上，設 置於該彈簧槽（662)内，且兩端分別抵靠擋部（67 1)及彈簀槽（662)内壁，迫使外棘輪（66)與内 棘輪（6 4 )相結合。 藉由上述技術手段，上述的椅座支架（1〇)、椅背 支架（20)、扶手支架（30)及靠腳支架（40)共 同構成四連桿機構，調整定位裝置（5 0 )的定位螺紋桿 (5 3 )可以其内侧端迫緊在調整桿（5 2 )的侧壁，藉 此將調整桿（5 2 )定位於固定座（5 1 )上，從而固定 M320333 四連桿機構之間的各夾角，故搖椅的結構將定型而無法改 變，避免搖椅因使用者的重量或動作而意外塌陷，此外， 透過棘輪組件樞設在弧桿（6 3 )前後兩端的撐立腳（6 5 )可將弧桿（6 3 )撐起定位，避免搖椅任意擺動，故 使播椅兼具一般座椅的功能。 【圖式簡單說明】 第一圖係本創作立體外觀圖。^ and the side rod of the foot support, and has a solid seat, an adjustment rod and a positioning threaded rod, the fixed seat is disposed on the seat bracket and has a tired hole 13⁄435 integral upper end pivoting The positioning threaded rod is disposed in the screw hole in the front end of the armrest bracket and the side bracket of the foot bracket, and is slidably disposed in the fixing seat 2, and the inner side end can be tightly tightened to the side wall of the rod; The extension is arranged between the seat support (four) cliff support wooden chair * bracket and the foot 8 to form the seat of the rocking chair, the back of the chair and the abutment, and the person can sit and lie; and ', and the second arc rod assembly The component system includes at least two curved rods and a curved rod respectively disposed at the bottom of the seat bracket, and the upper end of the supporting rods 5 M320333 is disposed at the bottom of the seat bracket, and the arc rod is disposed at the same The bottom end of the support rod is in contact with the ground. According to the above technical means, the seat bracket, the seat back bracket, the armrest bracket and the footrest bracket jointly form a four-bar linkage mechanism, and the positioning threaded rod of the adjusting positioning device can be pressed on the side wall of the adjusting rod by the inner side end thereof, thereby Positioning the adjusting rod on the fixing seat, the angle between the armrest bracket pivoted with the adjusting rod and the side rod of the supporting bracket is fixed, thereby fixing the angle between the four link mechanisms, so the structure of the rocking chair will be fixed It cannot be changed to prevent the rocking chair from accidentally collapsing due to the user's weight or movement. The adjusting rod is axially formed with a row of positioning recesses on one side of the positioning screw rod, and the positioning recesses are adapted to position the threaded rod to position the relative position between the adjusting rod and the fixed seat. The front and rear ends of each arc bar are respectively pivotally provided with a unidirectionally rotating supporting leg. When the ends of the two supporting legs of the arc bar are located at the downward position, the end of the supporting leg is lower than the lowest point of the arc bar and can be propped up Arc the pole and position the rocker without swinging. And each of the supporting legs and the corresponding front end or the rear end of the arc rod are respectively pivotally connected through a ratchet assembly, and each of the ratchet assemblies includes an inner ratchet, an outer ratchet, a fixed rod and a spring. The ratcheting system is fixed on the corresponding end of the arc or the rear end, and has a fixing hole. The outer ratchet wheel is formed with a plurality of inner ratchet teeth arranged in a ring shape, and the outer ratchet wheel system is fixed in the corresponding One end of the supporting leg has a perforation, and an elastic groove is formed on the outer ratchet, and an outer ratchet is formed on the inner end of the outer ratchet and is formed in a plurality of annular arrangements and combined with the inner ratchet. The outer ratchet wheel passes through the hole of the M320333 and is disposed in the inner ratchet fixing hole, and a retaining bar is formed on the outer end of the fixing rod, and the magazine is sleeved on the fixing rod, and is disposed in the elastic groove, and both ends are disposed The outer ratchet is forced to be combined with the inner ratchet by abutting against the inner wall of the retaining portion and the spring groove. It is necessary to say that the front end of each arc pole and the rear end of the support leg can rotate in the opposite direction. At least one supporting crossbar is fixed between the two arc bars. _ Each of the armrest brackets is provided with an armrest pad, which is made of an elastic material. [Embodiment] Please refer to the first figure. The artificially adjustable rocking chair system includes: two seat base 2 (10), one seat back bracket (2 〇), two armrest brackets (3 〇), and a sin foot bracket ( 4〇),-Adjust the positioning device (50), a fabric (7 〇), a two-arc assembly (6 〇) and at least one support crossbar (8 〇). The seat brackets (10) are elongated and opposed to each other. ❿ ^ = seat back bracket (20), which is u-shaped, has two side bars, and each side end (2 1) is pivoted at the end of the seat bracket (worker) (1 2 ) . The armrest brackets (30) are elongated and oppositely left and right, and the rear ends (32) of the armrest brackets (30) are respectively pivoted on the rods and ends of the seatback brackets (2 〇). 2 i) Where the distance is a certain distance, in addition, each armrest bracket (30) is provided with an armrest (3 5), which is made of an elastic material. The 5th foot support (40) is U-shaped and has two side rods. The sides 7 M320333 rod ends (41) are respectively pivoted at the front end of each armrest bracket (3〇) (3 1), and the side rods Upper end (41) A specific (four) disposition (4) is provided at the front end (11) of the seat bracket (10). Referring to the second A and second B drawings, the adjustment positioning device (5〇) is disposed on the corresponding side of the seat bracket (i 〇), the armrest bracket (3 〇) and the footrest bracket (40). And having a fixing base (51), an adjusting rod (52) and a positioning threaded rod (53); the fixing base (5 1) is pivoted on the corresponding seat bracket (i 〇) and The longitudinal through hole (5 1 1 ) and the through hole r and the η direction screw hole (512); the upper end of the adjusting rod (52) is pivoted at the front end of the pair of w armrests (3〇) (3) 1) a pivotal joint with the side support (4 1 ) of the foot support (4 〇) and slidably disposed in the through hole (5 i) of the fixed H 5 1 ); the positioning threaded rod ( 5 3) Wide, placed in the screw hole (5 work 2) and can be closed at the inner end to the side of the adjustment rod (5 2 ). The mosquito threaded rod (5 3 ) has a knob on the outer side (5 3 1) In order to facilitate the user to hold the knob (5 3 work), the rotation is fixed (R3); in the preferred embodiment, the adjustment rod (5 is relatively positioned with the threaded rod (5) 3) ^A side is formed with a b21) along the axial direction, the special recess (521) The relative position between the threaded rod for positioning (q q ^ b 3) to be positioned extending into the regulating rod (5 2 a) and the fixing base ^), as shown in the second B in FIG. Back support = fabric (7 〇) is stretched between the seat bracket (1 〇), chair, ^ ( 2 〇) and the foot bracket (40) to form the rocker seat, pusher and The lame can be used for the user to sit on the bed. In addition, the fabric 8 M320333 ('〇) can be made of artificial material or natural fiber. ",, the first picture, the arc rod assemblies (60) are respectively set at the bottom of the seat bracket (1〇) and placed on the floor pole (6 work) (γ, - each curved rod assembly The system includes at least two arcs (6 3 ), and the support bars (6 poles (63) are placed at the bottom of the seat bracket (1〇) on the upper end of the seat bracket (the arc system is disposed on the cutting rods (61) (62) and can be in contact with the ground, "swing. Arc 6 3) is a circular arc shape, so that the rocker chair front and rear of the material # (8 〇) is fixed between the two arcs, such as the first body / f 〇-月 refers to the second and fourth figures. When the user wants to adjust the sole (531) of the seat back and the foot's rotatable adjustment positioning device (5〇): the rod (53), at this time the adjustment rod ( 5 2 ) ( 5 2 a) The tension of the threaded rod (53) is clamped and the angle of the armrest bracket (3〇) and the footrest bracket (4〇) can be changed relative to the fixed seat (5 1). 'If the angle is increased, the rocker chair can be laid down when the seat back and the chat are spread. Finally, the positioning threaded rod is tightened to fix the adjustment rod (5 2 ) fe aα chair. (52a) the location, which will shake the second 5th, 6th and 6th B, preferably, each of the arc bars (the rear ends of the 6 are respectively pivotally provided with a unidirectionally rotating support leg (6 rows of each arc #63) The end of the standing foot (65) is at the end of the 'flip' (65) and the lower end of the arc (63) is lower than the arc (63), and the rocker is positioned without swinging. In addition, the 9 M320333 arc (5) 3) The direction of rotation of the front end and the rear end of the swinging foot (6 3) is opposite. In addition, the respective standing legs (6 5 ) and the corresponding front end or rear end of the arc rod (63) are respectively transmitted through - ratchet The group # is pivotally connected, and each ratchet ^= includes an inner ratchet (6 4 ), an outer ratchet (6 6 ), a fixed cup (6 7 ) and a spring (6 8 ); the inner ratchet (6 4 ) It is fixed at the front end or the rear end of the corresponding arc rod (63) and has a fixing hole: a plurality of inner spines U arranged in a ring shape are formed on the side ends of the inner ratchet (6 4 ) (4); ( 6 4 1 The outer ratchet (6 6 ) is fixed on the end of the corresponding supporting leg (65) and has a through hole, and a spring groove is formed on the outer ratchet (6 6) to communicate with the through hole (6 6 2), on the outer ratchet (6 6 An inner ratchet having a plurality of annular arrangements and combined with an inner ratchet (6 4 1 ) is formed on the inner end thereof (6 6; the fixing rod (6 7 ) is perforated through the outer ratchet (ββ) And disposed in the fixing hole of the inner ratchet (64), a stopper (6 7) is formed on the outer end of the fixing rod (6 7 ); the spring (68) is sleeved on the fixing rod (67), and is disposed In the spring groove (662), the two ends abut against the inner portion of the blocking portion (67 1) and the magazine groove (662), forcing the outer ratchet (66) to be combined with the inner ratchet (6 4 ). According to the above technical means, the seat bracket (1〇), the backrest bracket (20), the armrest bracket (30) and the footrest bracket (40) together constitute a four-bar linkage mechanism, and the positioning device (50) is adjusted. The positioning threaded rod (53) can be clamped to the side wall of the adjusting rod (52) by its inner end, thereby positioning the adjusting rod (52) on the fixing seat (5 1 ), thereby fixing the M320333 four-bar linkage mechanism Between the angles, the structure of the rocking chair will be shaped and cannot be changed, and the rocking chair will be accidentally collapsed due to the weight or movement of the user. In addition, the supporting legs of the front and rear ends of the arc bar (6 3 ) are pivoted through the ratchet assembly (6). 5) The arc rod (6 3 ) can be erected to prevent the rocking chair from swinging arbitrarily, so that the playing chair has the function of a general seat. [Simple description of the drawing] The first picture is a three-dimensional appearance of the creation.
第二A圖係本創作放大立體局部剖視圖。 第二B圖係本創作一實施例的放大立體外觀圖。 第三圖係本創作側視圖。 第四圖係本創作接續第三圖的操作示意圖。 第五圖係本創作接續第三圖的操作示意圖。 第六A圖係本創作放大立體分解圖。 第六B圖係本創作放大立體分解圖。 【主要元件符號說明】 (10)椅座支架 (12)後端 (21)末端 (31)前端 (3 5 )扶手墊 (41)末端 (51)固定座 (5 1 2 )螺孔 (5 2 a )調整桿 (11)前端 (20)椅背支架 (30)扶手支架 (3 2 )後端 (4 0 )靠腳支架 (5 0)調整定位裝置 (5 1 1 )貫孔 (5 2 )調整桿 (5 3 )定位螺紋桿 11 M320333 (5 3 1 )旋鈕 （ (61)支撐桿 （ (6 3 )弧桿 （ (6 4 1 )内棘齒 （ (6 6 )外棘輪 （ (6 6 2 )彈簧槽 （ (6 8 )彈簧 （ (8 0 )支撐橫桿 6 0 )弧桿組件 6 2 )支撐桿 6 4 )内棘輪 6 5 )撐立腳 6 6 1 )外棘齒 6 7 )固定桿 7 0 )布料 12The second A diagram is an enlarged partial cross-sectional view of the creation. The second B-picture is an enlarged perspective view of an embodiment of the present creation. The third picture is a side view of the creation. The fourth picture is a schematic diagram of the operation of the third figure in this creation. The fifth picture is a schematic diagram of the operation of the third figure in this creation. The sixth A picture is an enlarged exploded view of the creation. The sixth B-picture is an enlarged exploded view of the creation. [Main component symbol description] (10) Seat bracket (12) Rear end (21) End (31) Front end (3 5) Armrest pad (41) End (51) Fixing seat (5 1 2) Screw hole (5 2 a) Adjusting rod (11) Front end (20) Back seat bracket (30) Armrest bracket (3 2 ) Rear end (4 0 ) Foot support (5 0) Adjusting positioning device (5 1 1 ) Through hole (5 2 ) Adjustment lever (5 3 ) Positioning threaded rod 11 M320333 (5 3 1 ) knob ((61) support rod ((6 3 ) arc rod ((6 4 1 ) inner ratchet ((6 6 ) outer ratchet ( ( 6 6 2) spring groove ((6 8 ) spring ((8 0 ) support crossbar 6 0 ) arc bar assembly 6 2 ) support rod 6 4 ) inner ratchet 6 5) support leg 6 6 1) outer ratchet 6 7 ) fixed Rod 7 0 ) cloth 12