201019817 九、發明說明： ，【發明所屬之技術領域】 • 本發明涉及一種鉸鏈結構及採用該鉸鏈結構之電腦機 箱0 【先前技術】 習知技術中，電腦機箱通常包括本體及蓋體。本體形 成有開口，蓋體藉由螺釘等方式固設於該開口以將該開口 ❹封閉，從而將設置於本體内之主板等電子元件保護起來。 由於蓋體係藉由螺釘等方式固設於本體，當對主板等 電子元件進行更換等作業時，需用專用之螺絲刀等工具方 可將蓋體從本體拆卸下來，使用中較為不便。 為此’業界提出了於電腦機箱上設置鉸鏈結構之方 法。電腦機箱包括本體、蓋體及鉸鏈結構。鉸鏈結構包括 基板、設置於基板兩侧之二支座及一 υ型支架，該υ型支 ❿架之一端設置有轉動軸，安裝於支座之通孔中可繞轉動軸 轉動。U型支架之另一端設置有安裝板以形成固定端。基 板連接本體，固定端連接蓋體即可。 上述较鏈結構雖可使蓋體相對本體轉動以實現蓋體之 開啟與關閉，且關閉後電腦機箱能隱藏鉸鏈結構，具有較 好之美觀，惟’蓋體相對本體轉動之角度一般為18〇度， 如此，蓋體開啟後，並未貼合本體之側壁，蓋體佔用較大 之空間’使用中較為不便。 7 201019817 【發明内容】 ' 鑒於上述内容，有必要提供一種能隱藏鉸鏈結構且使 •用方便之鉸鏈結構及採用該鉸鏈結構之電腦機箱。 一種鉸鏈結構，其包括基座、轉動件及連接該基座與 轉動件之連接件，該連接件可滑動地設置於基座，該轉動 件可轉動地設置於連接件，轉動件相對連接件之旋轉中心 可隨連接件相對基座之滑動而運動至基座外侧。 一種電腦機箱，其包括本體、蓋體及連接該本體與蓋 ®體之鉸鏈結構。鉸鏈結構包括基座、轉動件及連接該基座 與轉動件之連接件。該基座固定於本體，該轉動件固定於 蓋體。連接件可滑動地設置於基座。轉動件可轉動地設置 於連接件。轉動件相對連接件之旋轉中心可隨連接件相對 基座之滑動而運動至基座外側。 上述電腦機箱中，基座固定於本體，轉動件固定於蓋 體。連接件可滑動地設置於基座，且轉動件可轉動地設置 @於連接件，如此，鉸鏈結構可設置於本體與蓋體内側，電 腦機箱關閉後能隱藏鉸鏈結構。且轉動件相對連接件之旋 轉中心可隨連接件相對基座之滑動而運動至基座外侧，轉 動件之轉動不受設置鉸鏈結構之本體侧面限制，故蓋體可 相對本體轉動大於270之角度，蓋體開啟後能貼合本體之 侧壁，從而減少此時電腦機箱佔用之空間，具有使用方便 之優點。 【實施方式】 8 201019817 下面將結合附圖及實施例對本發明之鉸鏈結構及採用 ，該鉸鏈結構之電腦機箱做進一步詳細說明。 . 請參見圖1，本發明較佳實施例之電腦機箱200包括本 體210、蓋體230及鉸鏈結構250。蓋體230藉由鉸鏈結構 250可轉動地設置於本體210。 請參見圖2與圖3’鉸鏈結構250包括基座251、連接 件253、彈性元件255、轉動件257、導柱258及轉軸259。 基座251包括一底板2511、二從底板2511相對之兩侧 ❹邊緣向同一侧延伸之第一側板2513與第二側板2515。第一 側板2513與第二側板2515上開設有轴孔2517。第二側板 2515上開設有與底板2511相隔一定距離之長條形滑槽 2519。 滑槽2519之延伸方向與底板2511平行。另，底板 2511上還開設有複數用於連結本體210之連接孔2512，第 二侧板2515還開設有用以固定彈性元件255之固定孔 2520。 ❹ 連接件253包括第一支撐壁2531及與第一支撐壁2531 相交之第二支撐壁2533。第一支撐壁2531與第二支撐壁 2533大體形成一 “L”形結構。第一支樓壁2531遠離第二 支撐壁2533之一端形成有滑動部2535。本實施例中，滑動 部2535為兩鉚柱插入於開設於第一支擇壁2531之兩固定 孔2534形成。第二支撐壁2533遠離第一支撐壁2531之一 端開設有一收容孔2537。收容孔2537之延伸方向基本垂直 第一支撐壁2531與第二支撐壁2533。 彈性元件255為扭簧，其包括一簧圈2551及二連接簧 9 201019817 圈 2551 之支腳 2553、2555。 轉動件257大體為扇形平板狀，轉動件257開設有一 •轴孔2571及一弧形槽2573，轴孔2571位於轉動件257之 扇形平板之較小端。弧形槽2573位於轉動件257之扇形平 板之較大端且孤形槽2573之弧之中心與轴孔2571之中心 重合。弧形槽2573具有開口端2575及封閉端2577，且弧 形槽2573之開口端2575貫穿轉動件257之扇形平板之一 蠹側邊。另，轉動件257上還開設有複數用於連結電腦機箱 蓋體230之連接孔2579。 請再同時參見圖4與圖5,組裝時，連接件253之滑動 部2535設置於基座251之滑槽2519内，使連接件253可 沿滑槽2519相對基座251滑動。 轉軸259依次插入轉動件257之軸孔2571與連接件 253之收容孔2537，以將轉動件257可轉動地設置於連接 件 253。 Φ 彈性元件255之其中一支腳2553插入基座251之固定 孔2520而另一支腳2555固定於連接件253，且彈性元件 255之簧圈2551與基座251之軸孔2517對齊。轉動轉動件 257’使弧形槽2573與基座251之轴孔2517對齊，導柱258 依次插入轴孔2517、簧圈2551及弧形槽2573内。如此， 當連接件253沿長條形滑槽2519相對基座251滑動之過程 中，弧形檜2573作用於導柱258，進而產生一可轉動轉動 件257之力矩，即當連接件253沿長條形滑槽2519相對基 座251滑動之過程中，轉動轉動件257以轉軸259為旋轉 201019817 中心相對連接件253及基座251轉動。且連接件253沿長 .條形滑槽2519相對基座251滑動一定距離後，彈性元件255 •對連接件253產生一作用力，使連接件253具有往回滑動 之趨勢。 然後，基座251藉由底板2511之連接孔2512固定於 本體210，轉動件257藉由連接孔2579固定於蓋體23〇且 使鉸鏈結構250位於蓋體230内側。 ❹ 於蓋體23〇關閉後，連接件253之滑動部2535滑動至 長條形滑槽2519之第一端2521，導柱258滑動至弧形槽 2573之封閉端2577。 请一併參見圖6與圖7，開啟蓋體230之過程中，連接 件253之滑動部2535向長條形滑槽2519之第二端2523滑 動，且導柱258與弧形槽2573相互作用使轉動件257以轉 轴259為旋轉中心相對連接件253及基座251轉動，此時， 導柱258於弧形槽2573内滑動並使導柱258向開口端2575 ❾運動。 當連接件253之滑動部2535滑動至長條形滑槽2519 之第二端2523時候’轉動件257相對連接件253之旋轉中 心隨連接件253相對基座251之滑動而運動至基座251外 侧。導柱258從轉動件257之弧形槽2573之開口端2575 滑出時’轉動件257轉過豎直位置ZZ時，於重力之作用下 繼續以轉轴259為旋轉中心相對連接件253及基座251轉 動。且轉動件257之轉動不受設置鉸鏈結構25〇之本體21〇 側面限制。故，蓋體230可相對本體210轉動之角度大於 11 201019817 270度，蓋體230開啟後能貼合本體210之侧壁，使減少此 -時電腦機箱200佔用之空間，具有使用方便之優點。 ' 請一併參見圖8,當轉動件257之抵持基座251之底板 2511側邊或本體21〇時，轉動件257停止轉動，此時，蓋 體230完全開啟。由於於蓋體23〇開啟後，轉動件257之 側面抵持基座251之底板2511侧邊或本體210被限定，此 時’蓋體230不會向開啟之方向進一步運動。 ❹ 關閉蓋體23〇時，扳動蓋體230，蓋體230帶動轉動件 257 一起以轉軸259為旋轉中心相對連接件253及基座251 轉動。 當蓋體230轉過豎直位置ZZ時候，弧形槽2573之開 口端2575剛好正對導枉258 ’進一步轉動蓋體230，導柱 258從開口端2575進入弧形槽2573相互作用，進而轉動件 257 一起以轉轴259為旋轉中心相對連接件253及基座251 轉動°同時’轉動件257帶動連接件253並使連接件253 ®之滑動部2535沿長條形滑槽2519向長條形滑槽2519之第 一端2521滑動。當滑動部2535滑動至長條形滑槽2519之 第一端2521時，導柱258位於弧形槽2573之封閉端2577, 蓋體230處於關閉狀態。 上述電腦機箱200中，鉸鏈結構250設置於本體21〇 與蓋體230之内侧’當蓋體230關閉時，鉸鏈結構250為 蓋體230所遮擋’即鉸鏈結構250於該電腦機箱200於關 閉蓋體230後能隱藏於電腦機箱200内部，具有較好之美 觀0 12 201019817 上述電腦機箱200中，基座251上形成長條形滑槽 • 2519，連接件253之滑動部2535為二圓柱狀凸起，如此， 組裝時滑動部2535直接插入長條形滑槽2519即可，具有 組裝方便之優點。可以理解，還可將基座251之長條形滑 槽2519設置為滑軌等其他形式，且基座251與連接件253 之連接還可設計為其他連接方式，例如將滑動部2535設置 為與連接件253 —體成型之圓柱狀凸起，然後將圓柱狀凸 伸入長條形滑槽2519即可。類似地，導柱258亦可為形成 於基座251之圓柱狀凸起。 可以理解’於考慮製造成本之情況下，弧形槽2573與 導柱258可省略’此時，開啟蓋體23〇之過程中可先推動 連接件253相對基座251滑動，當轉動件257相對連接件 253之旋轉中心運動至基座251外側時，再使轉動件257 相對連接件253轉動即可。 可以理解，上述鉸鏈結構250還可應用於播放器、傳 ⑩真機、印表機等電腦機箱以及建築門窗、汽車門窗等。上 述蓋體230亦可替換為其他具有開合功能之蓋體等元件。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明較佳實施例之電鵰機箱之立體圖。 13 201019817 圖2係圖1所示電腦機箱之鉸鏈結構之立體分解圖。 ， 圖3係圖2所示鉸鏈結構之另一視角之立體分解圖。 ‘ 圖4係圖2所示鉸鏈結構組裝後之立體圖。 圖5係圖4所示鉸鏈結構另一視角之局部剖視圖。 圖6係圖1所示電腦機箱開啟過程中鉸鏈結構之狀態 圖。 圖7係圖6所示鉸鏈結構之另一視角之立體圖。 圖8係圖1所示電腦機箱開啟後鉸鏈結構之狀態圖。 ® 【主要元件符號說明】 電腦機箱 200 本體 210 蓋體 230 鉸鏈結構 250 基座 251 底板 2511 連接孔 2512 第一侧板 2513 第二侧板 2515 軸孔 2517 滑槽 2519 固定孔 2520 第一端 2521 201019817 第二端 ' 連接件 * 第一支撐壁 第二支撐壁 固定孔 滑動部 收容孔 © 彈性元件 簧圈 支腳 轉動件 轴孔 弧形槽 開口端 ❿ 封閉端 連接孔 導柱 轉軸 2523 253 2531 2533 2534 2535 2537 255 2551 2553 、 2555 257 2571 2573 2575 2577 2579 258 259 15201019817 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a hinge structure and a computer case 0 using the hinge structure. [Prior Art] In the prior art, a computer case usually includes a body and a cover. The main body is formed with an opening, and the cover body is fixed to the opening by screws or the like to close the opening, thereby protecting the electronic components such as the main board disposed in the body. Since the cover system is fixed to the main body by screws or the like, when the electronic components such as the main board are replaced, a special screwdriver or the like is required to detach the cover body from the main body, which is inconvenient to use. To this end, the industry has proposed a method of setting a hinge structure on a computer case. The computer case includes a body, a cover body and a hinge structure. The hinge structure comprises a base plate, two supports disposed on two sides of the base plate, and a cymbal type bracket. One end of the truss type truss is provided with a rotating shaft, and is mounted in the through hole of the support to rotate around the rotating shaft. The other end of the U-shaped bracket is provided with a mounting plate to form a fixed end. The base plate is connected to the body, and the fixed end is connected to the cover body. Although the above-mentioned chain structure can rotate the cover body relative to the body to realize the opening and closing of the cover body, and the computer case can hide the hinge structure after being closed, the appearance of the cover body is better, but the angle of rotation of the cover body relative to the body is generally 18〇. Degree, in this way, after the cover body is opened, the side wall of the body is not attached, and the cover body occupies a large space, which is inconvenient to use. 7 201019817 [Description of the Invention] In view of the above, it is necessary to provide a hinge structure which can hide the hinge structure and which is convenient to use, and a computer case using the hinge structure. A hinge structure includes a base, a rotating member and a connecting member connecting the base and the rotating member, the connecting member is slidably disposed on the base, the rotating member is rotatably disposed on the connecting member, and the rotating member is opposite to the connecting member The center of rotation can move to the outside of the base as the connector slides relative to the base. A computer case includes a body, a cover body and a hinge structure connecting the body and the cover body. The hinge structure includes a base, a rotating member and a connecting member connecting the base and the rotating member. The base is fixed to the body, and the rotating member is fixed to the cover. The connector is slidably disposed on the base. The rotating member is rotatably disposed on the connecting member. The center of rotation of the rotating member relative to the connecting member is movable to the outside of the base as the connecting member slides relative to the base. In the above computer case, the base is fixed to the body, and the rotating member is fixed to the cover. The connecting member is slidably disposed on the base, and the rotating member is rotatably disposed on the connecting member. Thus, the hinge structure can be disposed on the inner side of the body and the cover body, and the hinge structure can be hidden after the computer case is closed. And the rotating center of the rotating member relative to the connecting member can move to the outside of the base with the sliding of the connecting member relative to the base, and the rotation of the rotating member is not restricted by the side of the body of the hinge structure, so the cover can rotate relative to the body by an angle greater than 270 After the cover body is opened, the side wall of the body can be attached, thereby reducing the space occupied by the computer case at this time, and having the advantages of convenient use. [Embodiment] 8 201019817 The hinge structure of the present invention and the computer case using the hinge structure will be further described in detail below with reference to the accompanying drawings and embodiments. Referring to FIG. 1, a computer case 200 according to a preferred embodiment of the present invention includes a body 210, a cover 230, and a hinge structure 250. The cover 230 is rotatably disposed on the body 210 by a hinge structure 250. Referring to Figures 2 and 3, the hinge structure 250 includes a base 251, a connector 253, an elastic member 255, a rotating member 257, a guide post 258, and a rotating shaft 259. The base 251 includes a bottom plate 2511 and a first side plate 2513 and a second side plate 2515 extending from the opposite side edges of the bottom plate 2511 toward the same side. A shaft hole 2517 is defined in the first side plate 2513 and the second side plate 2515. The second side plate 2515 is provided with an elongated strip groove 2519 spaced apart from the bottom plate 2511 by a certain distance. The direction in which the chute 2519 extends is parallel to the bottom plate 2511. In addition, the bottom plate 2511 is further provided with a plurality of connecting holes 2512 for connecting the body 210, and the second side plate 2515 is further provided with a fixing hole 2520 for fixing the elastic member 255. The ❹ connector 253 includes a first support wall 2531 and a second support wall 2533 that intersects the first support wall 2531. The first support wall 2531 and the second support wall 2533 generally form an "L"-shaped structure. A sliding portion 2535 is formed at one end of the first floor wall 2531 away from the second supporting wall 2533. In this embodiment, the sliding portion 2535 is formed by inserting two studs into the two fixing holes 2534 formed in the first supporting wall 2531. A receiving hole 2537 is defined in one end of the second supporting wall 2533 away from the first supporting wall 2531. The extending direction of the receiving hole 2537 is substantially perpendicular to the first supporting wall 2531 and the second supporting wall 2533. The elastic member 255 is a torsion spring, which includes a coil 2551 and two connecting springs 2, 2010, 1981, and legs 2553, 2555. The rotating member 257 is substantially in the shape of a fan-shaped flat plate. The rotating member 257 defines a shaft hole 2571 and an arcuate groove 2573. The shaft hole 2571 is located at the smaller end of the sector plate of the rotating member 257. The arcuate groove 2573 is located at the larger end of the sector plate of the rotating member 257 and the center of the arc of the orphan groove 2573 coincides with the center of the shaft hole 2571. The arcuate groove 2573 has an open end 2575 and a closed end 2577, and the open end 2575 of the arcuate groove 2573 extends through one of the sides of the sector plate of the rotating member 257. In addition, the rotating member 257 is further provided with a plurality of connecting holes 2579 for connecting the computer case cover 230. Referring to FIG. 4 and FIG. 5 at the same time, when assembled, the sliding portion 2535 of the connecting member 253 is disposed in the sliding slot 2519 of the base 251, so that the connecting member 253 can slide along the sliding slot 2519 relative to the base 251. The rotating shaft 259 is sequentially inserted into the shaft hole 2571 of the rotating member 257 and the receiving hole 2537 of the connecting member 253 to rotatably mount the rotating member 257 to the connecting member 253. One of the legs 255 of the Φ elastic member 255 is inserted into the fixing hole 2520 of the base 251 and the other leg 2555 is fixed to the connecting member 253, and the coil 2551 of the elastic member 255 is aligned with the shaft hole 2517 of the base 251. The rotating member 257' is rotated to align the curved groove 2573 with the shaft hole 2517 of the base 251, and the guide post 258 is sequentially inserted into the shaft hole 2517, the coil 2551, and the curved groove 2573. Thus, during the sliding of the connecting member 253 along the elongated slot 2519 relative to the base 251, the curved jaw 2573 acts on the guiding post 258, thereby generating a moment of the rotatable rotating member 257, that is, when the connecting member 253 is long. During the sliding of the strip chute 2519 relative to the base 251, the rotating rotating member 257 rotates with the rotating shaft 259 as a rotation of the center of the connecting member 253 and the base 251. After the connecting member 253 slides a certain distance from the base 251 along the long strip-shaped chute 2519, the elastic member 255 generates a force on the connecting member 253, so that the connecting member 253 has a tendency to slide back. Then, the base 251 is fixed to the body 210 by the connecting hole 2512 of the bottom plate 2511, and the rotating member 257 is fixed to the cover 23 by the connecting hole 2579 and the hinge structure 250 is located inside the cover 230.于 After the cover 23 is closed, the sliding portion 2535 of the connecting member 253 slides to the first end 2521 of the elongated slot 2519, and the guide post 258 slides to the closed end 2577 of the curved slot 2573. Referring to FIG. 6 and FIG. 7 together, during the opening of the cover 230, the sliding portion 2535 of the connecting member 253 slides toward the second end 2523 of the elongated slot 2519, and the guide post 258 interacts with the curved slot 2573. The rotating member 257 is rotated relative to the connecting member 253 and the base 251 with the rotating shaft 259 as a center of rotation. At this time, the guide post 258 slides in the arcuate groove 2573 and moves the guide post 258 toward the open end 2575. When the sliding portion 2535 of the connecting member 253 slides to the second end 2523 of the elongated slot 2519, the rotating center of the rotating member 257 relative to the connecting member 253 moves to the outside of the base 251 as the connecting member 253 slides relative to the base 251. . When the guide post 258 slides out from the open end 2575 of the arcuate groove 2573 of the rotating member 257, when the rotating member 257 rotates through the vertical position ZZ, the connecting member 253 and the base are continued with the rotating shaft 259 as the center of rotation under the action of gravity. The seat 251 is rotated. And the rotation of the rotating member 257 is not restricted by the side of the body 21 设置 where the hinge structure 25 is disposed. Therefore, the angle of the cover 230 relative to the body 210 is greater than 11 201019817 270 degrees, and the cover 230 can be attached to the side wall of the body 210 to reduce the space occupied by the computer case 200, which has the advantages of convenient use. Referring to Fig. 8, when the rotating member 257 abuts the side of the bottom plate 2511 of the base 251 or the body 21, the rotating member 257 stops rotating, and at this time, the cover 230 is fully opened. Since the side of the rotating member 257 abuts against the side of the bottom plate 2511 of the base 251 or the body 210 after the cover 23 is opened, the cover 230 does not move further in the opening direction. ❹ When the cover body 23 is closed, the cover body 230 is pulled, and the cover body 230 drives the rotating member 257 to rotate together with the rotation shaft 259 as a center of rotation with respect to the connecting member 253 and the base 251. When the cover 230 rotates through the vertical position ZZ, the open end 2575 of the curved groove 2573 just rotates the cover 230 just opposite the guide 258', and the guide post 258 enters the curved groove 2573 from the open end 2575, and then rotates. The member 257 rotates with respect to the connecting member 253 and the base 251 with the rotating shaft 259 as the center of rotation. At the same time, the rotating member 257 drives the connecting member 253 and the sliding portion 2535 of the connecting member 253 ® is elongated along the elongated slot 2519. The first end 2521 of the chute 2519 slides. When the sliding portion 2535 slides to the first end 2521 of the elongated slot 2519, the guide post 258 is located at the closed end 2577 of the curved slot 2573, and the cover 230 is in the closed state. In the computer case 200, the hinge structure 250 is disposed on the inner side of the body 21 and the cover 230. When the cover 230 is closed, the hinge structure 250 is blocked by the cover 230. That is, the hinge structure 250 is closed to the computer case 200. The body 230 can be hidden inside the computer case 200, and has a good appearance. 0 12 201019817 In the above computer case 200, the base 251 is formed with a long-shaped chute • 2519, and the sliding portion 2535 of the connecting member 253 is a two-columnar convex Therefore, the sliding portion 2535 can be directly inserted into the elongated slot 2519 during assembly, which has the advantage of convenient assembly. It can be understood that the elongated slot 2519 of the base 251 can also be configured as a slide rail or the like, and the connection of the base 251 and the connector 253 can also be designed as other connections, for example, the sliding portion 2535 is set to The connecting member 253 is a cylindrical protrusion formed by a body, and then the cylindrical shape is projected into the elongated groove 2519. Similarly, the guide post 258 can also be a cylindrical projection formed on the base 251. It can be understood that the arcuate groove 2573 and the guide post 258 can be omitted in consideration of the manufacturing cost. At this time, the connecting member 253 can be pushed to slide relative to the base 251 during the opening of the cover body 23, when the rotating member 257 is opposite. When the center of rotation of the connecting member 253 is moved to the outside of the base 251, the rotating member 257 is rotated relative to the connecting member 253. It can be understood that the above-mentioned hinge structure 250 can also be applied to a computer case such as a player, a real machine, a printer, and the like, as well as a building door and window, a car door and window, and the like. The cover 230 may be replaced with other components such as a cover having an opening and closing function. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the present invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electric engraving chassis in accordance with a preferred embodiment of the present invention. 13 201019817 Figure 2 is an exploded perspective view of the hinge structure of the computer case shown in Figure 1. Figure 3 is an exploded perspective view of another perspective view of the hinge structure shown in Figure 2. ‘ Fig. 4 is a perspective view of the hinge structure shown in Fig. 2 assembled. Figure 5 is a partial cross-sectional view showing another perspective of the hinge structure shown in Figure 4. Figure 6 is a state diagram of the hinge structure during the opening of the computer case shown in Figure 1. Figure 7 is a perspective view of another perspective view of the hinge structure shown in Figure 6. FIG. 8 is a state diagram of the hinge structure after the computer case shown in FIG. 1 is opened. ® [Main component symbol description] Computer case 200 Body 210 Cover 230 Hinge structure 250 Base 251 Base plate 2511 Connection hole 2512 First side plate 2513 Second side plate 2515 Axis hole 2517 Chute 2519 Fixing hole 2520 First end 2521 201019817 Second end 'connecting member* first supporting wall second supporting wall fixing hole sliding portion receiving hole © elastic member coil spring foot rotating shaft hole arcing slot opening end 封闭 closed end connecting hole guide post shaft 2523 253 2531 2533 2534 2535 2537 255 2551 2553, 2555 257 2571 2573 2575 2577 2579 258 259 15