200948309 六、發明說明： 【發明所屬之技術領域】 本發明係關於椅子的靠背構造。 【先前技術】 先前，已知有一種具有網狀的靠背的椅子（例如，參 照專利文獻1)。專利文獻i的椅子的靠背3〇,係如第u © 圖所示’在背架31的内側，設有背板3.2。背板32，如第 13圖所示，設有多數個寬度相同的縱長孔33，且 狀。 战網 專利文獻1 :日本專利公開公報特開2〇〇7_1252i9號 【發明内容】 然而，先前的專利文獻1中所記載的椅子的靠背利， 〇 t利用者所產生的荷重作用在背板32上的時候，背板⑵ 的伸長量比較小，會有利用者難以得到服貼感這樣 題。 又，當背架31相對於背板32的縱長孔33呈傾斜的情 況，由於背架31會被配置成橫切背架31附近的縱長孔 33，所以背架31附近的縱長孔33的形狀和尺寸，與其他 的縱長孔33相異，會有樣式變差的問題。 本發明係有鑑於如此的問題而開發出來，苴 供-種椅子的靠背構造，利用者可以得到良㈣Z係感*： 3 200948309 且能使樣式良好。 為了解決上述課題，本發明係採用以下的手段。 亦即’本發明具備： 者檀，其從藉由腳而被支持的座部的端部側，往上方 延伸；以及 背板，其被設置在上述背框内，具有柔軟性，且設有 多數個菱形孔而形成網狀。 Q 若藉由本發明，由於背板具有多數個菱形孔，且以相 互傾斜交又的線或帶等編織形成網狀，所以當利用者所造 成的荷重施加在背板上的時候，與具有橫寬相同的縱長孔 之彦板相比，背板的伸長量變大，能夠給予利用者良好的 服貼感。 在此，上述背框，具有支持上述背板的兩側之左右框 部；上述左右框部，相對於上述菱形孔中的四個邊的任一 邊，構成大約呈平行。藉由此構成，由於蔓形孔的一邊與 © 背框的左右框部會被配置成朝向相同方向，所以樣式變 佳。又，左右框部由於不會被配置成橫切菱形孔，所以能 夠抑制背板的強度降低。 X ’鄰接上述左右框部之上述菱形孔，能夠構成具有 與其它的菱形孔相同的形狀和尺寸。藉由此構成，樣式更 良好。 上述貪板之中，離開上述座部規定距離的部份， 能夠形成比其他部分的壁厚大。藉由此構成，例如藉由增 加背板之中的利用者的腰部要倚#(接觸）的部份，能夠確 200948309 實地支撐利用者的腰部。 又’上述菱形孔’能夠形成縱長形。藉由此構成，背 板的寬度方向（利用者的左右方向）的伸長量，由於比上下 方向的伸長量大，所以能夠給予更良好的服貼感。 若根據本發明，在背板上設置多數個菱形孔，且將相 互傾斜交叉的線編織形成網狀，所以當利用者所造成的荷 重施加在背板上的時候，背板的伸長量會變大。因此，能 夠給予利用者良好的服貼感。又，藉由使菱形孔的一邊與 © f框中的左右框部大致平行，背框能夠配置成不會橫切菱 形孔，所以不但能夠使樣式良好，且能防止背板的強度降 低0 【實施方式】 以下，基於圖切細地說明本發明之椅子的靠背構造 的實施形態。X，以下的實施形態係—實施例，但本發明 係不限於此實施形態。 第1圖係表示適用本發明之椅子的靠背構造之椅子！ 的正面圖此椅子1具有：、藉由此腳U而被支 成可旋轉自如的承台12、設置於承台12上的座部13、以 及從座部13的後端側向上方延伸的靠f⑷又 :第U时的上、下、左、右、前、後的文字，= 從坐在椅子1上的利用者來看的方向。 、 接著，說明靠背14。又，蚩雄η 士认缺机 又靠丨14以外的構成構件， 由於能夠使用通常的構件 傅件，200948309 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a backrest structure of a chair. [Prior Art] Previously, a chair having a mesh-shaped backrest was known (for example, refer to Patent Document 1). The backrest 3 of the chair of Patent Document i is provided with a backing plate 3.2 on the inner side of the back frame 31 as shown in Fig. The back plate 32, as shown in Fig. 13, is provided with a plurality of longitudinal holes 33 having the same width and in a shape. Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. 2_1252i9. SUMMARY OF THE INVENTION However, the backrest of the chair described in the prior patent document 1 is applied to the back plate 32 by the load generated by the user. When the top plate (2) is stretched, the amount of elongation of the back plate (2) is relatively small, and it is difficult for the user to obtain a feeling of conformity. Moreover, when the back frame 31 is inclined with respect to the longitudinal hole 33 of the back plate 32, since the back frame 31 is disposed to cross the longitudinal hole 33 near the back frame 31, the longitudinal hole near the back frame 31 The shape and size of 33 are different from those of the other longitudinal holes 33, and there is a problem that the pattern is deteriorated. The present invention has been developed in view of such a problem, and the user can obtain a good (four) Z-system sense*: 3 200948309 and can make the style good. In order to solve the above problems, the present invention employs the following means. That is, the present invention includes: a sandalwood extending upward from an end side of a seat supported by a foot; and a backing plate provided in the back frame, having flexibility and provided A plurality of diamond-shaped holes form a mesh. Q. According to the present invention, since the back plate has a plurality of rhombic holes and is woven by a line or a belt which is inclined to each other to form a mesh shape, when the load caused by the user is applied to the back plate, The elongation of the backing plate is larger than that of the longitudinally long hole-shaped plaque, and the user can be given a good feeling of wearing. Here, the back frame has left and right frame portions supporting both sides of the back plate, and the left and right frame portions are formed to be substantially parallel with respect to either one of the four sides of the rhombic hole. With this configuration, since one side of the vine-shaped hole and the left and right frame portions of the © back frame are arranged to face in the same direction, the pattern is improved. Further, since the right and left frame portions are not arranged to cross the rhombic holes, the strength of the back plate can be suppressed from being lowered. The diamond hole of the left and right frame portions adjacent to the X' can be formed to have the same shape and size as the other rhombic holes. By this, the style is better. Among the above-mentioned slabs, the portion which is separated from the seat portion by a predetermined distance can be formed to have a larger wall thickness than the other portions. With this configuration, for example, by increasing the portion of the user's waist in the back panel to rely on #(contact), it is possible to ensure that the user's waist is supported on the ground in 200948309. Further, the above-mentioned rhombic holes can be formed into a vertically long shape. With this configuration, the amount of elongation in the width direction of the back sheet (the left and right direction of the user) is larger than the amount of elongation in the up and down direction, so that a better wearing feeling can be given. According to the present invention, a plurality of rhombic holes are provided on the back plate, and the lines obliquely intersecting each other are woven into a mesh shape, so that when the load caused by the user is applied to the back plate, the elongation of the back plate changes. Big. Therefore, it is possible to give the user a good sense of care. Further, by making one side of the rhombic hole substantially parallel to the left and right frame portions in the frame of the f frame, the back frame can be disposed so as not to cross the rhombic hole, so that the pattern can be made good and the strength of the back plate can be prevented from being lowered. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a backrest structure of a chair of the present invention will be described in detail based on the drawings. X, the following embodiments are examples, but the present invention is not limited to the embodiments. Fig. 1 is a view showing a chair having a backrest structure to which the chair of the present invention is applied! Front View This chair 1 has a pedestal 12 that is rotatably supported by the foot U, a seat portion 13 that is provided on the pedestal 12, and an upper portion that extends upward from the rear end side of the seat portion 13. By f(4) again: the upper, lower, left, right, front, and back words at the U, = the direction from the user sitting on the chair 1. Next, the backrest 14 will be described. In addition, the 蚩 η η 认 认 认 认 认 认 认 认 认 认 又 又 又 , , , , , , ,
稱仵所以切其說明。靠背14, JL 5 200948309 備^背架20、以及設在此背架2〇内的背板2ι ;上述背架 2〇是從座部13的端邊中的兩側往上方延伸而形成大約四 方形（參照第4圖）的框狀的背框。背架20與背板2卜係 a由/、有柔軟性的合成樹脂而被一體成形。背芊2〇, 係藉由從承台12向上方延伸的二根背支柱22(參照第4 圓），來支持該背架2〇的兩側。 罪者14，係如第2圖所示，配合利用者的背的形狀，Weigh the instructions so cut the instructions. The backrest 14, JL 5 200948309, the back frame 20, and the back plate 21 disposed in the back frame 2〇; the back frame 2〇 extends upward from both sides of the end of the seat portion 13 to form about four Frame-shaped back frame square (see Figure 4). The back frame 20 and the back sheet 2 are integrally formed of /, a flexible synthetic resin. The back side is supported by two back pillars 22 (refer to the fourth circle) extending upward from the platform 12 to support both sides of the back frame 2〇. The sinner 14, as shown in Figure 2, matches the shape of the back of the user,
❹ 在座部13側形成凹陷的f曲狀。另外’此靠背14的背架 20係形成棒狀。 1外，背架20，係如第3圖所示，將從座部13算起 =預定高度處，例如以對應標準的體格的利用者的腰的部 作為基準部23，較此基準部23上側的部分以及較基 备°卩23下側的部分，分別向遠離座部13的方向，傾斜適 虽的角度。亦即’基準部23往座部13侧突出。 進而，此背架20,如第4圖的背面圖所示，藉由以 為頂點而往同一方向傾斜的左框部2°3與右 及用以連結這些左右框部2〇a、2〇b的上下端 2框部2〇c與下框部_，形成大約四角形。下框部咖 :由螺栓而被固定於用以連結背支柱22之連結部件 Z 2 a 上 〇 ? 背架20，從背面（後方）來看，從左右框部20a、 的基準部23起的上側部分，係形成上寬狀，從基準部 起的下側部分係形成下寬狀。亦即’從正面（前方）來 看時，左：ir is An J ^ 杧4 20a、20b的基準部23係形成中間較窄的 6 200948309 形狀。 又，背板21，係形成薄板狀，並具有多數個菱形孔24。 另外，所謂的菱形，是指四個邊的長度相等的四邊形，且 其四個角不是直角的形狀，例如撲克牌的方塊11的形狀。 此菱形孔24,如第5圖所示，在第5圖的上下方向，形成 縱長狀。藉此，背板21，如第6圖所示，係將線狀部件、 繩狀部件或是帶狀部件等的細長部件a、b傾斜地交又而 編織形成網狀。 ❹ 又，在本實施形態中，菱形孔24中的上下兩邊的角， 設置圓弧。藉此，當背板21往第4圖中的左右方向伸長 時，能夠抑制應力集中於菱形孔24的上下方向的角。 這些菱形孔24,如第7圖的背面圖所示’其左右兩邊 的角’被配置在第7圖中的往左右方向延伸的橫軸A、1.. 又，在上下方向相鄰的橫轴A、B…上的菱形孔24、 24 ’被配置在左右方向相互地錯開規定距離的位置上。進 ❹ 而，在上下方向相鄰的橫轴A、B…上的菱形孔24、24中 的上下端部’被配置成相互地進入對方軸的菱形孔24、24 之間。 在背架20的左右框部20a、20b中的基準部23的上下 部刀’如第8圖所示’被配置成：相對於背板21的菱形 孔24中的四個邊24a、24b、24c、24d的任一邊，大約呈 平行。 在本實施形態中，例如在比左框部20a的基準部23 更上側的部分，係被配置成平行於菱形孔24中的左下側 7 200948309 的邊24d與右上側的邊24b ;在比左框部20a的基準部23 更下側的部分，係被配置成平行於菱形孔24中的左上側 的邊24a與右下側的邊24c。關於右框部20b的情況，也 疋與左框部20a的情況相同。 又’在背板21的最外周側的孔24的更外側，設置沒 有孔的周邊部25»進而，如第9圖所示，在背板21的基 準部23中的上下方向的規定範圍，形成比其他部分的壁 厚大。另外，為了容易觀察，第9圖省略了設在背板21 ❹中的菱形孔24。 .如此，本實施形態的靠背14，其背板21具有形成縱 長狀的多數個菱形孔24,且將相互傾斜地交叉的線編織形 成網狀’所以當利用者所造成的荷重施加在背板21上的 時候’與以往具有相同寬度的縱長孔之背板相比，伸長量 變大。因此’能夠給予利用者良好的服貼感。 又’如第10圖所示’在菱形孔24中的左右兩邊的角 ❺ 24e、24f’係被配置在橫轴a、B上。藉此’如第11圖所 示，背板21身長的方向，由於在橫軸a、B…方向成為最 大’所以能夠給予利用者更良好的服貼感。 又，背板21之中，包含位於利用者的腰部附近的基準 點23之規定範圍Η的壁厚，由於形成比其他部分厚（參照 第9圖）’所以能夠確實地支撐利用者的腰部附近。 又’背架20的左框部20a與右框部20b，由於平行於 菱形孔24的四個邊之中的任一邊，所以背架2〇能夠構成 不會橫切菱形孔24。進而’菱形孔24之中的最外周的菱 8 200948309 形孔24’由於具有與其它的菱形孔24相同的形狀和尺 寸’所以能夠防止背板21的強度降低，並能使背板21的 外觀良好。另外，在上述實施形態中，菱形孔24是作成 縱長形’但是菱形孔24也可以作成正方形或是橫長形。 【圖式簡單說明】 第1圖係表示實施形態之椅子的正面圖。 Q 第2圖係表示實施形態之椅子的俯視圖，是第1圖的 A方向視圖。 第3圖係表示實施形態之椅子的侧面圖，是第1圖的 B方向視圓。 第4圖係表示實施形態之靠背的背面圖，是第3圖的 C方向視圖。 第5圖係表示實施形態之背板的菱形孔的立體圖。 魏 第6圖係說明實施形態的背板是將傾斜的線編織形成 •、網狀的圖。 第7圖係表示實施形態的背架與背板的菱形孔的圖。 第8圖係表示實施形態的背架的左右框部與菱形孔之 間的關係的圖。 第9圖係表示實施形態的背板的縱剖面圖，是第1圖 的^〜D線的剖面圖。 第10圖係表示實施形態的菱形孔的配列圖。 第11圖係表示實施形態的菱形孔的變化圖。 200948309 第12圖係表示習知例的椅子的立體圖。 第13圖係表示習知例的背板的圖。 主要元件符號說明】 1 .椅子 11 :腳 12 :承台 13 :座部 14 :靠背 20 :背架（背框） 2 0 a .左框部 20b :右框部 20c :上框部 20d :下框部 21 :背板 22 :背支柱 22a :連結部件 23 :基準部 24 :菱形孔 24a、24b、24c、24d : 24e、24f :菱形孔中的左右兩邊的角 25 :背板的周邊部 30 :靠背 31 :背架 32 :背板 3 3 ·寬度相同的縱長孔 菱形孔的邊 ❹ 10形成 A concave curved shape is formed on the seat portion 13 side. Further, the back frame 20 of the backrest 14 is formed in a rod shape. In addition, as shown in FIG. 3, the back frame 20 is calculated from the seat portion 13 to a predetermined height, and for example, a portion corresponding to the waist of the user of the standard physique is used as the reference portion 23, and the reference portion 23 is formed. The upper portion and the lower portion of the base portion 23 are inclined at an angle different from the seat portion 13 in a direction away from the seat portion 13. That is, the reference portion 23 protrudes toward the seat portion 13 side. Further, as shown in the rear view of FIG. 4, the back frame 20 is connected to the right and left frame portions 2〇a, 2〇b by the left frame portion 2°3 and the right side inclined in the same direction as the apex. The upper and lower ends 2 of the frame portion 2〇c and the lower frame portion_ form an approximately quadrangular shape. The lower frame portion is fixed to the connecting member Z 2 a of the back post 22 by a bolt, and the back frame 20 is viewed from the back portion (rear) from the reference portion 23 of the left and right frame portions 20a. The upper side portion is formed in an upper wide shape, and the lower side portion from the reference portion is formed in a lower width. That is, when viewed from the front (front), the reference portion 23 of the left: ir is An J ^ 杧 4 20a, 20b forms a narrower 6 200948309 shape. Further, the backing plate 21 is formed in a thin plate shape and has a plurality of rhombic holes 24. Further, the so-called rhombus refers to a quadrilateral in which the lengths of the four sides are equal, and the four corners thereof are not in the shape of a right angle, such as the shape of the square 11 of the playing card. As shown in Fig. 5, the rhombic hole 24 is formed in a vertically long shape in the vertical direction of Fig. 5. As a result, as shown in Fig. 6, the backing plate 21 is formed by slanting the linear members, the string members, or the elongated members a and b of the belt member into a mesh shape. Further, in the present embodiment, an arc is provided at an angle between the upper and lower sides of the rhombic hole 24. Thereby, when the backing plate 21 is elongated in the left-right direction in Fig. 4, it is possible to suppress the stress from being concentrated on the vertical direction of the rhombic hole 24. As shown in the rear view of Fig. 7, the rhombic holes 24 are arranged at the "left and right sides of the two sides" in the horizontal direction A and the direction extending in the left-right direction in Fig. 7 and the horizontally adjacent to each other in the vertical direction. The rhombic holes 24, 24' on the axes A, B, ... are disposed at positions shifted by a predetermined distance from each other in the left-right direction. Further, the upper and lower end portions of the rhombic holes 24, 24 on the horizontal axes A, B, ... adjacent in the vertical direction are disposed to enter each other between the rhombic holes 24, 24 of the counterpart shaft. The upper and lower blades 'of the reference portion 23 in the left and right frame portions 20a, 20b of the back frame 20 are arranged as shown in Fig. 8 to be arranged with respect to the four sides 24a, 24b of the rhombic holes 24 of the back plate 21, On either side of 24c, 24d, approximately parallel. In the present embodiment, for example, a portion higher than the reference portion 23 of the left frame portion 20a is disposed parallel to the side 24d of the lower left side 7 200948309 of the rhombic hole 24 and the side 24b of the upper right side; The lower portion of the reference portion 23 of the frame portion 20a is disposed parallel to the upper left side 24a and the lower right side 24c of the rhombic hole 24. The case of the right frame portion 20b is also the same as the case of the left frame portion 20a. Further, the peripheral portion 25» having no hole is provided on the outer side of the hole 24 on the outermost peripheral side of the backing plate 21, and further, as shown in Fig. 9, the predetermined range in the vertical direction of the reference portion 23 of the backing plate 21 is The formation is larger than the wall thickness of the other portions. Further, in order to facilitate observation, the rhombic hole 24 provided in the back plate 21 is omitted in FIG. As described above, in the backrest 14 of the present embodiment, the back plate 21 has a plurality of rhombic holes 24 formed in a vertically long shape, and the wires which are obliquely intersecting each other are woven into a mesh shape. Therefore, the load caused by the user is applied to the back plate. At the time of 21, the amount of elongation becomes larger than that of the back plate having the vertically long holes of the same width. Therefore, it is possible to give the user a good sense of attachment. Further, as shown in Fig. 10, the left and right corners 24e, 24f' in the rhombic hole 24 are disposed on the horizontal axes a and B. As a result, as shown in Fig. 11, the direction of the length of the back plate 21 is maximized in the directions of the horizontal axes a and B, so that the user can be given a better wearing feeling. In addition, the thickness of the predetermined range Η of the reference point 23 in the vicinity of the waist of the user is included in the backing plate 21, and the thickness is thicker than the other portions (see FIG. 9), so that the waist of the user can be reliably supported. . Further, since the left frame portion 20a and the right frame portion 20b of the back frame 20 are parallel to either one of the four sides of the rhombic hole 24, the back frame 2〇 can be configured not to cross the rhombic hole 24. Further, the outermost circumference of the rhombic hole 24, the 20098309 shaped hole 24', has the same shape and size as the other rhombic holes 24, so that the strength of the back plate 21 can be prevented from being lowered, and the appearance of the back plate 21 can be made. good. Further, in the above embodiment, the rhombic hole 24 is formed in a vertically long shape, but the rhombic hole 24 may be formed in a square shape or a horizontally long shape. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a chair of an embodiment. Q Fig. 2 is a plan view showing the chair of the embodiment, and is a view in the direction of the A in the first drawing. Fig. 3 is a side view showing the chair of the embodiment, and is a B-direction circle of Fig. 1; Fig. 4 is a rear view showing the backrest of the embodiment, and is a view in the C direction of Fig. 3. Fig. 5 is a perspective view showing a rhombic hole of the back plate of the embodiment. Wei Fig. 6 is a view showing the back plate of the embodiment in which a slanted line is formed into a mesh shape. Fig. 7 is a view showing a rhombic hole of the back frame and the back plate of the embodiment. Fig. 8 is a view showing the relationship between the left and right frame portions of the back frame and the rhombic holes of the embodiment. Fig. 9 is a longitudinal sectional view showing a backing plate of the embodiment, and is a cross-sectional view taken along the line D to D of Fig. 1. Fig. 10 is a view showing the arrangement of the rhombic holes in the embodiment. Fig. 11 is a view showing a change of a rhombic hole in the embodiment. 200948309 Fig. 12 is a perspective view showing a chair of a conventional example. Fig. 13 is a view showing a back sheet of a conventional example. Main component symbol description] 1. Chair 11: Foot 12: Bearing platform 13: Seat portion 14: Backrest 20: Back frame (back frame) 2 0 a. Left frame portion 20b: Right frame portion 20c: Upper frame portion 20d: Lower Frame portion 21: Back plate 22: Back post 22a: Connecting member 23: Reference portion 24: Rhombic holes 24a, 24b, 24c, 24d: 24e, 24f: Angle 25 on the left and right sides of the rhombic hole: Peripheral portion 30 of the back plate : Backrest 31 : Back frame 32 : Back plate 3 3 · Edge of the diamond hole with the same length of the vertical hole 10