1305302 '九、發明說明： 【發明所屬之技術領域】 本發明涉及-種卡合裝置，尤其為一種採用該卡合裝 置之電子設備。 【先前技術】 隨著電子技術之發展，越來越多之電 相關之外部設備連接，以實現更多功能。在電 部設備連接時，除了必要之電輯接，財必要提供一定 之機械連接，以加強電子設備與外部設備連接之穩 通常電子設備具有-卡合裝置，用於該電子設備鱼立 他相關設備間之卡合連接。該卡合裝置包括卡勾和扭箸。 該卡勾包括勾體、勾合部和轉轴。該勾體為長條型。該勾 合部由該勾體之一端彎曲延伸形成。該轉軸是與該勾：垂 直連接之圓柱體，該卡勾可繞該轉軸轉動。該扭簧包括二 彈性繞組、施力臂和支撐f，_性繞組之直徑大於或等 於該轉軸之直徑。該施力臂是由該二彈性繞組之-端延伸 並連接形成。該支撐臂與該彈性繞組的另—端連接。 %褒配時，先將該卡勾與該扭簧裝配，該二彈性繞組套 =轉軸上。再將該卡勾和該扭簧裝配後之整體裝配到 備中。此時’該扭簧之該施力臂與該勾體抵觸， u疋。卩與該電子設備之某一固定部件抵觸。當該卡勾受 到外力作用繞該轉軸轉動時，該勾體帶動該施力臂轉動， 迫使該扭黃受迫發生彈性形變。當外力消失，該卡勾藉由 1305302 ’該扭簧恢復彈性形變所產生之彈 然而’該扭簧與該卡勾裝配後：，：位置。 因此，進行該下一牛“：谷易％該轉軸發生相對轉動。 關係做進-步調整，延長組裝工 ：扭位置 產製造。 衣时間’不利於生 【發明内容】 種扭簧與卡勾相對固 定之卡 有鑒於此，有必要提供一 合裝置。 還有必要提供—種㈣該卡合裝置之電子設備。 :種卡合裝置包括卡勾和扭簧。該卡勾包括勾體、勾 σ σ —轉軸和抵擋部。該勾合部與該勾體 狀結構，以與外部設備卡合連接。該二二同轴 '並刀別位於該勾體二側。該域部位於該勾體上。該 扭簧包括二彈性繞組、二固定部和施力臂。該彈性繞组套 設於該轉轴上。該二以部分別與該彈性繞組—端相連， 田該固疋部ϋ定後可為該扭簧之形變提供支撐。該施力臂 二別與該—彈性繞組另—端相連並與該抵標部保持抵觸。 當該施力臂遠離則體移動時，該減部產生阻擋該施力 臂移動之作用力。 一種電子設備包括機殼及卡合裝置，該卡合裝置用於 該電子設備與外部設備卡合連接。該卡合裝置包括卡勾、 扭簧和基座。該卡勾包括勾體、勾合部、二轉軸和抵擋部。 1305302 -該勾合部與該勾體-端相連，其整體為勾狀結構。續二轉 抽同軸設置並分別位於該勾體二側。該抵撞部位於該勾體 上。該扭簧包括二彈性繞組、二固定部和施力臂。該彈性 额套設於該轉軸上。該二固定部分別與該二彈性繞組一 ^相連且固定於該基座上，以氧兮4從 斗 以為該扭簧的形變提供支撐。 該施力臂分別與該二彈性繞組另一 ^ ^ 知相連並與該抵擋部保 持抵觸。該基座開設有二收容槽， 二收㈣t。 料分別置於該 上述卡合裝置及採用該卡合褒置之該電子裝置，藉由 該抵播部阻播該施力臂遠離該勾體移動，使該 ^ 簧裝配後可保持相對固定，後“ 俊、，另襞配時無需調整該扭簧和 該卡勾之位置’減少裝配I序和裝配時間，利於生產製造。 【實施方式】 請參閱圖1，其為一較佳眘 R。士入駐罢η 佳實苑例之卡合裝置14之立體 圖。卡合裝置14句括+ ^ 4Λ , 勹〇、扭頁4〇和基座60。扭筈 40套设于卡勾2〇上，且+勿,Λ 2上 ’、 6〇中。 卡勾20和扭簧40均收容於基座 祕邻206 括勾體2〇2、勾合部204、二 套接口P 206、二轉軸2〇8、 ^ ^ ^ ^ ^ . 低葆邻21〇、第一遮蓋板212a 和弟一遮盍板212b。勾體202 A且片/ 辨909 一 w U2為長條形，勾合部204與勾 體202 -柒相連形成勾狀結構， 合連接。二套接π 2Π以门“ ’、卜U(圖未不）卡 勾體202上=為同軸_，其分別垂直連接于 勾體202上與勾合部 相鄰一側。二轉轴208是分別沿 1305302 J 二套接部206 —端面垂直延伸形成之同軸圓柱體，且轉軸 • 208之直徑小於套接部206之直徑，二者形成階梯形式。 抵擋部210是位於勾體202上與勾合部204相對側邊侧之 凸塊。第一遮蓋板212a和第二遮蓋板212b均與勾體202 相連，其中第一遮蓋板212a位於抵擋部210靠近勾合部 204 —側。第二遮蓋板212b位於勾合部204所在之側邊。 請參閱圖3，扭簧40包括二彈性繞組402、施力臂404 和二固定部406。二彈性繞組402同轴設置，其直徑大於 或等於套接部206之直徑。施力臂404分別與二彈性繞組 402 —端連接。固定部406 —端與二彈性繞組402連接， 另一端為拉勾形末端。 請參閱圖4’基座60包括基板610、二撞板630、二 支撐塊640和彈片650。基板610上開設有通孔660。二擋 板630分別位於通孔660相對二側且與基板610相連，並 且二擋板630相互平行且垂直於基板610。擋板630遠離 _基板610 —端設有引導面632及與轉軸208對應之圓弧形 收容槽634，引導面632為與收容槽634之槽壁636相連 之斜面，以使轉軸208可藉由引導面632滑動進入收容槽 634。二支撐塊640分別由二擋板630與基板610相鄰且同 一側之側邊相對延伸而成。支撐塊640遠離收容槽634轴 線a-a之一側設有與固定部406之拉勾形末端對應之勾槽 642，且勾槽642位於其遠離基板610 —端。彈片650位於 二支撐塊640之間，其包括連接部652、接觸部654、引導 部656和加強筋658。連接部652和加強筋658均連接於 9 1305302 -·基板610上，另一端與接觸部654連接，並且加強筋658 • 位於位於連接部652中間。接觸部654由連接部652及加 強筋658向靠近收容槽634轴線a-a方向傾斜並延伸形 成。引導部656由接觸部654遠離基板610 —端向遠離基 板610方向延伸形成。 請參閱圖5，裝配時，扭簧40之二彈性繞組402分別 套設于卡勾20之二套接部206上。二套接部206之直徑大 小可不同，與之對應之二彈性繞組402之直徑也不同，以 ® 避免扭簧40之誤裝。施力臂404同時與勾體202和抵擋部 210靠近勾體202 —端保持抵觸。當施力臂404遠離勾體 202移動時，抵擋部210產生阻擋施力臂404移動之作用 力，使卡勾20和扭簣40保持相對固定。 卡勾20穿過通孔660，其轉軸208沿著擋板630上之 引導面632向收容槽634所在位置移動。同時，勾體202 在引導部656的引導下進入引導面632與彈片650之間的 0位置，並擠壓彈片650之接觸部654，使彈片650發生彈 性形變。最終，轉軸208沿引導面632滑動進入收容槽 634。此時，彈片650之接觸部654和勾體202保持抵觸。 卡勾20藉由彈片650與擋板630的相互配合，使轉轴208 穩定在收容槽634中，且卡勾20可繞轉轴208轉動。 當轉轴208沿引導面632滑動進入收容槽634後，扭 簀40之固定部406固定於支撐塊640上，從而為扭簧40 發生彈性形變提供支撐。同時，固定部406之拉勾形末端 勾扣於支撐塊640上之勾槽642中，以避免固定部406與 1305302 ；支撐塊640之間發生相對滑動或者脫離。二遮蓋板212用 •於遮蓋基板610上之通孔660與勾體202之間之間隙，以 防止灰塵進入，亦使用戶不能直接看到卡合裝置14之内部 結構。 卡合震置14裝配完成後，扭簧4〇之施力臂404對卡 勾20有一定之預壓力。同時，勾體2〇2上相對施力臂 之另一侧之第一遮蓋板212a與基板60抵觸，使卡勾20 X力平衡並保持在該初始位置。當卡勾2〇受外力作用繞轉 軸208轉動時，勾體2〇2帶動施力臂4〇4轉動，以迫使扭 簧40發生彈性形變。外力消失後，扭簧4〇藉由施力臂4〇4 對勾體202施加作用力，使卡勾2〇回到該初始位置。 上述卡合裝置14藉由抵擋部210對扭簧40之阻播， 使卡勾20和扭簧40裝配後保持相對固定，利於後續裝配。 藉由引導面632之引導，方便地將轉軸2〇8裝配至收容槽 634中。藉由階梯形式套接部206與轉軸2〇8，對卡勾2〇 籲在轉轴208之轴向方向上之移動範圍進行限制。藉由彈片 650與擋板630之配合，使卡合裝置14在裝配到相關設備 上之則’轉軸208就能穩定在收容槽634中，從而使卡勾 20固定於基座60中。藉由強筋658增加彈片65〇強度。 藉由支撐塊640上之勾槽642和固定部406之拉勾形末端 之配合，以避免固定部406與支撐塊640之間發生相對移 動或脫離。其中，固定部406之拉勾形末端之作用為增加 固定部406與支撐塊640相對位置之穩定性，所以其末端 也可為直線形或其他結構。整個卡合裝置14結構緊湊，裝 11 1305302 配簡單可用於各種機械或電子設備中，用於該機械或電 子設備與外部設備卡合連接。 请參閱圖6,其為另—較佳實施方式之卡勾80之立體 圖。卡勾80包括勾體繼、勾合部_、二轉轴麵、抵 稽部810、第三遮蓋板812a和第四遮蓋板㈣。其中，勾 體8〇2、勾合部804、第三遮蓋板812a和第四遮蓋板812b 與卡勾20之勾體202、勾合部2〇4、第一遮蓋板仙和第 二遮蓋板212b相同，不再贅述。卡勾8〇之二轉軸綱同 軸設置’並分別垂直連接于勾體觀二側。抵撞部81〇為 與轉抽_平行之長條形凹槽，其在勾體802上之位置與 卡勾20之抵撞部21〇在勾體2〇2上之位置相同。裝配時， 扭簧40套設於轉軸8〇8上，施力臂4〇4置於抵擔部_ 中。其他裝配關係與前述卡勾2〇、扭簧4〇和基座6〇之裝 配關係相同’不再贅述。 、 i綜上該’本發明符合發明專利要件，爰依法提出專利 >申明准’以上該者僅為本發明之較佳實施例，舉凡熟悉 本案技藝之人士，在援依本案創作精神所作之等效修飾^ 變化，皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 圖1為一較佳實施例之卡合裝置之立體圖。 圖2為圖1所示之卡勾之立體圖。 圖3為圖1所示之扭簧之立體圖。 圖4為圖1所示之基座之立體圖。 12 1305302 圖5為沿圖1所示V-V線之卡合裝置之剖面視圖。 圖6為另一較佳實施方式之卡勾之立體圖。1305302 'Nine, the invention relates to: Technical Field of the Invention The present invention relates to a type of engaging device, and more particularly to an electronic device using the same. [Prior Art] With the development of electronic technology, more and more power-related external devices are connected to achieve more functions. When the electrical equipment is connected, in addition to the necessary electrical connection, it is necessary to provide a certain mechanical connection to strengthen the connection between the electronic device and the external device. The usual electronic device has a snap-fit device for the electronic device to be related to it. The snap connection between the devices. The snap device includes a hook and a twist. The hook includes a hook body, a hooking portion and a rotating shaft. The hook body is a long strip type. The hook portion is formed by bending one end of the hook body. The rotating shaft is a cylinder connected to the hook vertically, and the hook is rotatable about the rotating shaft. The torsion spring includes two resilient windings, a biasing arm and a support f, the diameter of the _ winding being greater than or equal to the diameter of the shaft. The force applying arm is formed by extending and connecting the ends of the two elastic windings. The support arm is coupled to the other end of the resilient winding. When the % is matched, the hook is first assembled with the torsion spring, and the two elastic winding sleeves are on the rotating shaft. The hook and the torsion spring are assembled and assembled into the preparation. At this time, the force applying arm of the torsion spring is in contact with the hook body, u疋.抵 It interferes with a fixed part of the electronic device. When the hook is rotated by the external force around the rotating shaft, the hook body drives the force applying arm to rotate, forcing the twisting yellow to be elastically deformed. When the external force disappears, the hook recovers the elastic deformation caused by the torsion spring by 1305302. However, the torsion spring is assembled with the hook:: position. Therefore, the next cow ": Gu Yi%. The rotation of the shaft occurs relative to each other. The relationship is made into a step-by-step adjustment, and the assembly is extended: the twist position is manufactured. The clothing time is not conducive to the life [invention] The torsion spring and the card In view of the above, it is necessary to provide a combined device. It is also necessary to provide (4) the electronic device of the engaging device. The type of engaging device includes a hook and a torsion spring. The hook includes a hook body, Hook σ σ — the rotating shaft and the resisting portion. The hooking portion and the hook-shaped structure are engaged with the external device. The two coaxial 'the knives are located on the two sides of the hook body. The domain is located in the hook The torsion spring comprises two elastic windings, two fixing portions and a force applying arm. The elastic winding is sleeved on the rotating shaft. The two portions are respectively connected with the elastic winding end, and the solid portion is The deformation can provide support for the deformation of the torsion spring. The force applying arm is connected to the other end of the elastic winding and is in contact with the abutting portion. When the force applying arm is moved away from the body, the reducing portion blocks The force of the force applied by the arm. An electronic device package The casing and the engaging device are configured for the electronic device to be engaged with the external device. The engaging device comprises a hook, a torsion spring and a base. The hook comprises a hook body, a hooking portion and a second rotating shaft 1305302 - The hooking portion is connected to the hook body end, and the whole is a hook structure. The second twisting coaxial arrangement is located on the two sides of the hook body. The impact portion is located on the hook body. The torsion spring comprises two elastic windings, two fixing portions and a urging arm. The elastic yoke is sleeved on the rotating shaft. The two fixing portions are respectively connected to the two elastic windings and fixed on the base to the oxime 4, the bucket is provided with support for the deformation of the torsion spring. The force applying arm is respectively connected with the two elastic windings and is in contact with the resisting portion. The base is provided with two receiving slots, and two receiving (four) t. The electronic device with the above-mentioned engaging device and the engaging device is configured to prevent the force-applying arm from moving away from the hook body, so that the spring can be relatively fixed after being assembled, and then , there is no need to adjust the position of the torsion spring and the hook when the other is matched. 'I reduce assembly time and assembly sequence, facilitates manufacturing. [Embodiment] Please refer to FIG. 1 , which is a preferred R. The stereotype of the engagement device 14 of the example of Jiashiyuan. The engaging device 14 includes +^4Λ, 勹〇, twisted page 4〇 and base 60. Twisted 40 sets are set on the hook 2, and +Do not, Λ 2 on ‘, 6〇. The hook 20 and the torsion spring 40 are respectively accommodated in the base of the base 206, including the hook body 2〇2, the hooking unit 204, the two sets of interfaces P 206, the two rotating shafts 2〇8, ^ ^ ^ ^ ^ . The first cover 212a and the first cover 212b. The hook body 202 A and the piece/recognition 909 a w U2 are elongated, and the hooking portion 204 is connected with the hook body 202 - 形成 to form a hook-like structure and is connected. The second set of π 2 Π is the door " ', the U (not shown) card body 202 = coaxial _, which is respectively perpendicularly connected to the side of the hook body 202 adjacent to the hooking portion. The second rotating shaft 208 is A coaxial cylinder extending perpendicularly along the end face of the 1305302 J two sockets 206, respectively, and the diameter of the rotating shaft 208 is smaller than the diameter of the socket portion 206, and the two form a stepped form. The resisting portion 210 is located on the hook body 202 and the hook The first cover plate 212a and the second cover plate 212b are connected to the hook body 202, wherein the first cover plate 212a is located at the side of the resisting portion 210 near the hooking portion 204. The second cover The plate 212b is located on the side of the hooking portion 204. Referring to Figure 3, the torsion spring 40 includes two elastic windings 402, a force applying arm 404 and two fixing portions 406. The two elastic windings 402 are coaxially disposed, and the diameter thereof is greater than or equal to the sleeve. The diameter of the connecting portion 206. The applying arm 404 is respectively connected to the end of the two elastic windings 402. The fixing portion 406 is connected to the two elastic windings 402 and the other end is a hook-shaped end. Referring to FIG. 4, the base 60 includes a substrate. 610, two striker 630, two support blocks 640 and elastic 650. On the substrate 610 A through hole 660 is defined. The two baffles 630 are respectively located on opposite sides of the through hole 660 and connected to the substrate 610, and the two baffles 630 are parallel to each other and perpendicular to the substrate 610. The baffle 630 is disposed at a distance from the end of the substrate 610. The 632 and the arc-shaped receiving groove 634 corresponding to the rotating shaft 208, the guiding surface 632 is a slope connected to the groove wall 636 of the receiving groove 634, so that the rotating shaft 208 can slide into the receiving groove 634 by the guiding surface 632. The two supporting blocks 640 The two baffles 630 are respectively adjacent to the substrate 610 and the side edges of the same side are oppositely extended. The support block 640 is disposed on a side of the axis aa of the receiving groove 634 and is provided with a hook groove corresponding to the hook-shaped end of the fixing portion 406. The hook groove 642 is located at the end of the substrate 610. The elastic piece 650 is located between the two support blocks 640, and includes a connecting portion 652, a contact portion 654, a guiding portion 656 and a reinforcing rib 658. The connecting portion 652 and the reinforcing rib 658 are both Connected to the 9 1305302 - substrate 610, the other end is connected to the contact portion 654, and the rib 658 is located in the middle of the connecting portion 652. The contact portion 654 is connected by the connecting portion 652 and the rib 658 toward the axis aa of the receiving groove 634, Tilt and extend to form The portion 656 is formed by the contact portion 654 extending away from the substrate 610 at the end away from the substrate 610. Referring to FIG. 5, during assembly, the two elastic windings 402 of the torsion spring 40 are respectively sleeved on the two socket portions 206 of the hook 20. The diameter of the two sockets 206 can be different, and the diameters of the two elastic windings 402 are different, so as to avoid the misassembly of the torsion spring 40. The urging arm 404 is simultaneously in contact with the hook body 202 and the abutting portion 210 near the end of the hook body 202. When the urging arm 404 moves away from the hook 202, the resisting portion 210 generates a force that blocks the movement of the urging arm 404, so that the hook 20 and the twist 40 remain relatively fixed. The hook 20 passes through the through hole 660, and the rotating shaft 208 moves along the guiding surface 632 on the baffle 630 toward the receiving groove 634. At the same time, the hook body 202 enters the 0 position between the guiding surface 632 and the elastic piece 650 under the guidance of the guiding portion 656, and presses the contact portion 654 of the elastic piece 650 to elastically deform the elastic piece 650. Finally, the shaft 208 slides along the guide surface 632 into the receiving groove 634. At this time, the contact portion 654 of the elastic piece 650 and the hook body 202 remain in contact with each other. The hook 20 stabilizes the rotating shaft 208 in the receiving groove 634 by the cooperation of the elastic piece 650 and the baffle 630, and the hook 20 can rotate around the rotating shaft 208. When the rotating shaft 208 slides along the guiding surface 632 into the receiving groove 634, the fixing portion 406 of the twist 40 is fixed to the supporting block 640, thereby providing support for the elastic deformation of the torsion spring 40. At the same time, the hook-shaped end of the fixing portion 406 is hooked in the hook groove 642 on the supporting block 640 to avoid relative sliding or disengagement between the fixing portion 406 and 1305302; The second cover 212 is used to cover the gap between the through hole 660 and the hook 202 on the substrate 610 to prevent dust from entering, and the user cannot directly see the internal structure of the engaging device 14. After the assembly of the snap-in vibration 14 is completed, the biasing arm 404 of the torsion spring 4 has a certain pre-pressure on the hook 20. At the same time, the first cover 212a on the other side of the hook body 2 〇 2 opposite the force applying arm is in contact with the substrate 60, so that the hook 20 X is balanced and held in the initial position. When the hook 2 is rotated by the external force about the rotating shaft 208, the hook 2〇2 drives the biasing arm 4〇4 to rotate to force the torsion spring 40 to elastically deform. After the external force disappears, the torsion spring 4 施加 exerts a force on the hook body 202 by the urging arm 4〇4, so that the hook 2 〇 returns to the initial position. The above-mentioned engaging device 14 prevents the torsion spring 40 from being blocked by the resisting portion 210, so that the hook 20 and the torsion spring 40 are relatively fixed after assembly, which facilitates subsequent assembly. The guide shaft 2〇8 is conveniently assembled into the receiving groove 634 by the guiding of the guiding surface 632. By the stepped sleeve portion 206 and the rotating shaft 2〇8, the movement range of the hook 2 in the axial direction of the rotating shaft 208 is restricted. By the cooperation of the elastic piece 650 and the baffle 630, the rotating shaft 208 of the engaging device 14 can be stabilized in the receiving groove 634 when assembled to the related device, so that the hook 20 is fixed in the base 60. The strength of the shrapnel 65 增加 is increased by the strong gluten 658. The relative movement or disengagement between the fixed portion 406 and the support block 640 is avoided by the engagement of the hook groove 642 on the support block 640 and the hook-shaped end of the fixing portion 406. Wherein, the action of the hook-shaped end of the fixing portion 406 is to increase the stability of the relative position of the fixing portion 406 and the supporting block 640, so that the end portion thereof may also be a straight line or other structure. The entire snap-fit device 14 is compact and can be used in a variety of mechanical or electronic devices for the mechanical or electronic device to be snap-fitted to an external device. Please refer to FIG. 6, which is a perspective view of another embodiment of the hook 80. The hook 80 includes a hook body, a hooking portion _, two rotating shaft faces, an abutting portion 810, a third cover plate 812a, and a fourth cover plate (four). The hook body 8〇2, the hooking portion 804, the third cover plate 812a and the fourth cover plate 812b and the hook body 202 of the hook 20, the hooking portion 2〇4, the first cover cover panel and the second cover panel 212b is the same and will not be described again. The hooks of the 8th axis of the hook are the same as the axis setting' and are respectively connected vertically to the two sides of the hook body. The abutting portion 81 is an elongated groove parallel to the swivel_, and its position on the hook body 802 is the same as the position of the abutting portion 21 of the hook 20 on the hook body 2〇2. During assembly, the torsion spring 40 is sleeved on the rotating shaft 8〇8, and the biasing arm 4〇4 is placed in the receiving portion_. The other assembly relationship is the same as that of the aforementioned hook 2, torsion spring 4, and base 6', and will not be described again. i, the above-mentioned invention meets the requirements of the invention patent, and the patent is filed according to law. The above is only a preferred embodiment of the present invention. Those who are familiar with the skill of the present invention are in the spirit of creating the case. Equivalent modifications ^ variations are intended to be included in the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a snap device of a preferred embodiment. Figure 2 is a perspective view of the hook shown in Figure 1. Figure 3 is a perspective view of the torsion spring shown in Figure 1. 4 is a perspective view of the base shown in FIG. 1. 12 1305302 Figure 5 is a cross-sectional view of the engaging device taken along line V-V of Figure 1. Figure 6 is a perspective view of a hook of another preferred embodiment.
【主要元件符號說明】 卡合裝置 14 引導面 632 卡勾 20 收容槽 634 扭簧 40 支撐塊 640 基座 60 勾槽 642 勾體 202 彈片 650 勾合部 204 連接部 652 套接部 206 接觸部 654 轉軸 208 引導部 656 抵擋部 210 加強筋 658 第一遮蓋部 212a 通孔 660 第二遮蓋部 212b 勾體 802 彈性繞組 402 勾合部 804 施力臂 404 轉軸 808 固定部 406 抵擋部 810 基板 610 第三遮蓋部 812a 擋板 630 第四遮蓋部 812b 13[Main component symbol description] Engaging device 14 Guide surface 632 Hook 20 Storage groove 634 Torsion spring 40 Support block 640 Base 60 Hook groove 642 Hook body 202 Spring piece 650 Knockout portion 204 Connection portion 652 Socket portion 206 Contact portion 654 Rotating shaft 208 guiding portion 656 resisting portion 210 reinforcing rib 658 first covering portion 212a through hole 660 second covering portion 212b hook body 802 elastic winding 402 hooking portion 804 urging arm 404 rotating shaft 808 fixing portion 406 resisting portion 810 substrate 610 third Cover portion 812a baffle 630 fourth cover portion 812b 13