M440718 五、新型說明： 【新型所屬之技術領域】 ^觸-種座概手塾多魏赠轉 錯由#作一押按件即可快速對 墊多功能調整結構 扶手進仃調整、定位之座椅扶手 【先前技術】M440718 V. New description: 【New technology field】 ^Touch-species hand-held 塾 塾 魏 赠 赠 赠 赠 赠 赠 赠 赠 赠 赠 赠 拨 拨 拨 拨 拨 拨 拨 拨 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按 按Chair armrest [previous technique]
^知舰侧μ 了使_瞻適而設計出 調整結構，縣結可依自身_縣”慣 :度、椅背角度等等，其中扶手之調整結構也是其中一項，： 扶手調整結構中，雖設計為可前、後移動以及左、右轉動， 但錄附帶複雜的操作，然而複雜的操作會造成調整運行上的 =順暢與獨紐，_造成使用不便域料命短的缺點， 此實在有必要針對習知扶手調整結構的操作不便性提出一 具體的改良。 【新型内容】 $創作主旨在提供—可簡便操作之座椅扶手調整結構。 月 >财-至八圖所示，本創作係—種座椅扶手塾多功能 調整2構，主要係包含有扶手輯接部、活動框架、移動件、 轉動定仅件'定位件、斜面移動件、押按件、手靠部與蓋板， 其中’該縣_接部於—端之_面設有半圓槽組，於中央 5 則設有穿槽’穿槽附近設有按鍵裝置槽，該按縣置槽内具有 阻隙板體；赖框雜裝置於扶手架連接勒，其上對鹿扶 手架連接部之半8]槽組位置而設有則，而與扶转連接紅 按鍵裝置彳f㈣應的-_設有倾，所述活動轉於中央設 有移動件裝置槽，於移動件裝置槽靠近彈片之—側設有擔板 -侧由内科依序設有導引塊、擋板二，該擋板一向内 '側設有半圓槽組；移動件係裝置於活動框架之移動件裝置 槽中，其於令央設有圓槽，該圓槽之外圍一側設有穿透移動件 之穿孔’另-側則設有齒組，該穿孔内裝置有彈菁，而穿孔兩 端出口處則各裝置有滾珠；轉動定位件係裝置於移動件之圓槽 +，其底端向下延伸有一圓柱體，且其對應移動件之穿孔、= 組位置分概转_組、輪齒；定位㈣裝胁活動框架 亡’射錢有兩個組合圓柱’而靠近活動框架撐板二之一端 »又有彈性7C件’另一端則設有上段齒組與下段齒組，該上段齒 、、且與轉動歧件之輪餘接，該下段餘顺飾件之齒組相 接；斜面移動件係褒置於定位件上，其對應定位件之組合圓柱 位置設有斜面孔；押按件健置於扶手料接部之按鍵裝置槽 内’其底部對應按鍵農置槽之阻隙板體設有凹槽，於凹槽之兩 側中’對絲動购之触位—做有卡合餘，另一側 U可供彈|裝置之彈簣裝置孔；手靠部係套蓋於扶手架連 接壯底稍應扶手架連接部之外輪廓設有容置槽，容置槽 内則裝置有一蓋板。 本創作之結構具有以下優點： 、本創作只需向_下押按件，使機件脫騎、位，而其 上的卡合齒組與活動框架之齒組脫離卡合，使活動框架 ° ;扶手架連接部内刖、後移動，同時，斜面移動件= 2按件推動’其上的斜面孔逼迫定位件之組合圓柱，使 定位件沿著活動框架之料軌移_令上段#組、下段 齒組分顺雜定轉之储、軸件之赦脫離解除 卡合’使轉動定位件可於移動件之圓槽内轉動，而移動 件可於飾购之飾件裝置勒沿著滑執移動，達到 自由調整位置、旋轉角度的目的。 二、當輕完錢，即可放_按件，此_按件彈簧裝置 孔内之彈簧與扶手架連接部之_板财纽作用力， 7押按件叫雜，其上的卡合敝重新細動框架之 齒組卡合，而斜面移動件受押按件拉動歸位的同時，定 轉之彈性元件與活動框架之擋板二產生反作用力令 疋位件v位’上段H下段倾重新與轉缺位件之 輪齒、移動件之齒組卡合，使各元件位置ϋ定，達到單 鍵快速操作之目的。 【實施方式】 調敕二1 第—至八圖所示’本創作係—種座椅扶手鮮功能 °正、、。，要係包含有扶手料接和G)、活驗架⑼）、 移動件（3〇)、轉動定位件（40)、定位件（50)、斜面移動件 (60)、押按件（70)、手靠部⑽與蓋板⑼），其中該 扶手架連接部（ίο)於—端之内壁面設有半圓槽組（11)，於 中央則設有穿槽（12)，穿槽〇2)周圍設有多個鎖合柱（13)， 穿槽（12)附近設有按鍵裝置槽（14)，該按職置槽⑼ 内具有一阻隙板體（141)。 活動框架（20)係裝置於扶手架連接部（1〇)内其上對 應扶手架連接部（10)之半圓槽組（u)位置而設有彈片⑵）， 而與扶手架連接部⑽之按難(⑷相對應的一删 設有齒組⑼’所述活動框架⑽於中央設有移動件裝置 槽（23)，於底部對應移動件裝置槽（23)之位置設有擔塊⑵）， 該移動件裝置槽（23)中央穿設有穿孔（231)，穿孔（231) 兩側各設有一滑軌U32)，於移動件裝置槽（Μ)靠近彈片⑵） 之-侧没有擋板-（25)，$-側由内而外依序設有導引塊 (26)、播板二（27)，該擋板一⑻向内之一側設有半圓槽 組（251)’該導引塊（26)向内之一側設有組合槽（261)，上 方則β又有凸塊（262) ’該擔板二（27)向内之—側設有導引軌 (271)。 移動件（30)係裝置於活動框架（2〇)之移動件裝置槽（23) 中，其於中央設有圓槽（31)，於底部對應活動框架（2〇)之 滑執(232)位置設有凹槽（32)，該圓槽（31)上設有圓孔（311)， 且圓槽（31)之外圍-侧設有穿透移動件之穿孔（33)，另一 又有㈤組（34) ’該穿孔（33)内裝置有彈簧（331)，而 穿孔（33^mq處則各裝置有滾珠⑽）。 ^動定位件⑽係裝置於移動件（3〇)之圓槽（31)中， 、端向下延伸有—穿過移動件（3〇)之圓孔（311)的圓柱 體（41)且其對應移動件⑽之穿孔⑶）、齒組⑼）位 置分別設有半圓槽組⑷）、輪齒⑹。 疋位件（5〇)係袈置於活動框架（20)上，其中央設有兩 個:且口圓柱（51)，而靠近活動框架（20)擂板二（27)之-端又有彈Utl件⑻，另—端則設有上段齒組⑸）也下段 齒組⑼，於底轉應轉辟⑽之導倾㈤)位置 則設有導⑽⑻，所述定位件⑼）並於制框架⑽ 之導引塊（26)位置設有L型滑行槽⑼，該上段齒組⑼ ”轉動疋位件（40)之輪齒⑹相接，該下段齒組⑼則 與移動件（3G)之齒組（34)相接。 斜面移動件⑽）係裝置於定位件（5〇)上，其對應定位 件（50)之組合圓柱f5n 圓狂ui)位置设有斜面孔（61)，而底部對 應扶手架連接部（10)之按鍵裝置槽⑼位置的一側設有接 口 4 (62) ’所述斜面移動件⑽）並於底部對應活動框架⑼） 之導引塊（26)位置設有導引槽（63)。 押按件（70)係裝置於扶手架連接部之按鍵裝置槽 (14)内，其底部對騎姆置槽⑼之阻隙板體（⑷） 設有凹槽⑻，於凹槽（71)之兩财’對應活動框架⑽ M440718 之齒組（22)位置的-側設有卡合#組（72)，另—侧則設有 可供彈簧（73)裝置之彈簣裝置孔（74)，所述押按件（7〇) 對應斜面移動件（60)之接合部（a)設有職接合部（75)。 手靠部（80)係套蓋於扶手架連接部（1〇)上，底部對應 扶手架連接部（1G)之外輪廓設有容置槽（81)，容置槽（81) 内則裝置有一蓋板（ς>〇)。 蓋板（90)底部對應扶手架連接部（1〇)之鎖合柱（13) 設有鎖合孔（91)，所述蓋板（90)底部並設有多條迫緊條（％)， 該迫緊條（92)可有效迫緊襄置於扶手架連接部⑽上的各 疋件，同時又可減少各元件動作時與蓋板（9〇)產生的摩擦力。 請參閱第四、五、六、七圖所示，當向内按下押按件（7〇) 時，押按件（70)脫離原位’而其上的卡合齒組（72)與活動 框木（20)之齒組（22)脫離卡合，使活動框架（2〇)可於扶 手架連接部（ίο)内前、後移動，但其移動受限等同於擔塊（24) 於牙槽（12)内之移動範圍’且活動框架（2〇)移動時，其上 之彈片⑵）係與扶手架連接部（1〇)之半圓槽組（⑴緊密 配合，形成-多段式移動結構，同時，斜面移動件（6())受押 按件（7G)推動，其上的斜面孔（61)逼迫粒件⑼之組 合圓柱（51)，使定位件（50)沿著活動框架（2〇)之（271) 導引執移動而令上段齒組⑼、下段齒組⑼分別與轉動 定位件（40)之輪齒（43)、移動件（3〇)之齒組（34)脫離 解除卡合，使轉缺位件（40)可於移動件⑽之圓槽（31) 10 IV144U/18^ Know the ship side μ has made the adjustment structure to make the adjustment structure, the county can be based on its own _ county: degree, the angle of the seat back, etc., the adjustment structure of the handrail is also one of them: In the handrail adjustment structure, Although it is designed to move forward and backward and rotate left and right, but the complicated operation is attached, but the complicated operation will cause the smoothness and uniqueness of the adjustment operation, which causes the shortcomings of inconvenient domain to be used. It is necessary to propose a specific improvement to the inconvenience of the conventional armrest adjustment structure. [New content] $The main idea is to provide an easy-to-operate seat armrest adjustment structure. Month > Creation Department - a kind of seat armrest 塾 multi-function adjustment 2 structure, mainly including armrest joints, movable frame, moving parts, rotating fixed parts 'positioning parts, inclined moving parts, squeezing parts, handrests and covers a plate, wherein the 'the county _ joint is provided with a semi-circular groove group on the side of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Lai frame miscellaneous device in the armrest frame , the upper part of the deer frame connection portion is provided with a position of a half of the slot group, and the red button device 彳f (4) of the turn-on connection is provided with a tilting, and the activity is transferred to the center with a moving part device. The trough is provided on the side of the moving device device slot near the elastic piece - the side is provided with a guiding block and a baffle plate 2 by the internal medicine department, and the baffle is provided with a semicircular groove group on the side of the inward side; In the moving device device slot of the movable frame, the central portion is provided with a circular groove, and the outer side of the circular groove is provided with a perforation penetrating the moving member, and the other side is provided with a tooth set, and the perforated device has an elastic Each of the two ends of the perforated end has a ball; the rotating positioning member is disposed on the circular groove of the moving member, and a cylindrical body extends downward from the bottom end thereof, and the corresponding moving member is perforated, and the group position is divided. _ group, gear teeth; positioning (four) flank activity frame dead 'shooting money has two combined cylinders' and close to one end of the movable frame gusset 2»there is elastic 7C piece' the other end is provided with the upper segment and the lower segment , the upper tooth, and the wheel of the rotating component, the tooth set of the lower section The bevel moving part is placed on the positioning member, and the corresponding cylindrical position of the corresponding positioning member is provided with an inclined face; the pressing member is placed in the button device slot of the armrest material connecting portion; The gap plate body is provided with a groove, in the two sides of the groove, the contact position of the wire is purchased, and the other side U is provided for the elastic device hole of the device; The cover is connected to the armrest frame and the bottom of the armrest frame is provided with a receiving groove outside the connecting portion of the armrest frame, and the receiving groove has a cover plate. The structure of the creation has the following advantages: The part is taken off, the position is removed, and the engaging tooth set on the movable frame is disengaged from the tooth set of the movable frame to make the movable frame°; the inner part of the armrest frame is moved backward and backward, and at the same time, the inclined moving part = 2 The piece pushes the upper part of the inclined face to force the positioning member of the positioning member, so that the positioning piece moves along the track of the movable frame _ so that the upper part of the group #, the lower part of the tooth component is steadily fixed, and the shaft is released from the release card. The 'moving positioning member can be rotated in the circular groove of the moving member, and the moving member can be purchased Le trim means moves along the slide execution, to freely adjust the position of an object rotation angle. Second, when the light is finished, you can put _ according to the piece, this _ according to the spring in the hole of the spring device and the armrest frame connection part of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ When the tooth set of the re-motion frame is engaged, and the bevel moving part is pulled and returned by the pressing piece, the elastic element of the fixed rotation and the baffle of the movable frame generate a reaction force, so that the v-position of the lower part is lower than the lower part of the upper part H It is re-engaged with the teeth of the gear teeth and the moving parts of the turning parts, so that the position of each component is fixed, and the single key quick operation is achieved. [Embodiment] 敕 敕 2 1 - to the eight figure shown in the 'creation system' - a variety of seat handrails. , including the armrest material connection and G), the movable inspection frame (9)), the moving member (3〇), the rotating positioning member (40), the positioning member (50), the inclined moving member (60), and the pressing member (70) ), the hand rest portion (10) and the cover plate (9)), wherein the arm frame connecting portion (ίο) is provided with a semi-circular groove group (11) on the inner wall surface of the end, and a through groove (12) is provided in the center. 2) There are a plurality of locking posts (13) around the slot, and a button device slot (14) is arranged near the slot (12). The slot (9) has a backlash plate body (141). The movable frame (20) is provided in the armrest frame connecting portion (1) with the elastic piece (2) disposed on the semicircular groove group (u) corresponding to the arm frame connecting portion (10), and the armrest frame connecting portion (10) According to the difficulty ((4) corresponding to the tooth set (9)', the movable frame (10) is provided with a moving device device slot (23) at the center, and a load block (2) is provided at the bottom corresponding to the moving device device slot (23)) The moving device device slot (23) is provided with a through hole (231) in the center, and a sliding rail U32 is disposed on each side of the through hole (231), and there is no baffle on the side of the moving device device slot (Μ) near the elastic piece (2)) - (25), the $- side is provided with a guiding block (26) and a playing board two (27) from the inside to the outside, and the baffle one (8) is provided with a semi-circular groove group (251) on one side of the inward side. The guiding block (26) is provided with a combination groove (261) on one side of the inward side, and a protrusion (262) on the upper side of the guide block (26). The guide rail (271) is provided on the inward side of the support plate (27). . The moving member (30) is arranged in the moving device device slot (23) of the movable frame (2), and has a circular groove (31) at the center and a sliding handle (232) corresponding to the movable frame (2) at the bottom. The position is provided with a groove (32), the circular groove (311) is provided with a circular hole (311), and the peripheral side of the circular groove (31) is provided with a through hole (33) penetrating the moving member, and the other has (5) Group (34) 'The perforation (33) is equipped with a spring (331) and a perforation (at 33^mq, each device has a ball (10)). The moving positioning member (10) is arranged in the circular groove (31) of the moving member (3), and the end extends downwardly with a cylinder (41) passing through the circular hole (311) of the moving member (3〇) and The positions of the perforation (3) and the tooth set (9) corresponding to the moving member (10) are respectively provided with a semi-circular groove group (4)) and gear teeth (6). The clamping member (5〇) is placed on the movable frame (20), and there are two in the center: the mouth cylinder (51), and the end of the movable frame (20) The Utl member (8) is provided with the upper tooth group (5) and the lower tooth group (9), and the guide (10) (8) is provided at the position of the bottom turn (5). The positioning member (9) is The guide block (26) of the frame (10) is provided with an L-shaped sliding groove (9). The upper tooth group (9) is connected to the gear teeth (6) of the rotating clamp member (40), and the lower tooth group (9) is connected with the moving member (3G). The tooth set (34) is connected. The bevel moving member (10) is mounted on the positioning member (5〇), and the corresponding cylindrical member f5n corresponding to the positioning member (50) is provided with a slanted face (61), and The bottom portion corresponding to the position of the button device slot (9) of the armrest frame connecting portion (10) is provided with an interface 4 (62) 'the bevel moving member (10)) and is disposed at the position of the guiding block (26) corresponding to the movable frame (9) at the bottom. There is a guiding groove (63). The pressing member (70) is arranged in the button device slot (14) of the armrest frame connecting portion, and the bottom portion of the latching plate body ((4)) of the riding groove (9) is provided with a groove. (8) The two sides of the groove (71) corresponding to the movable frame (10) M440718 have a snap # group (72) on the side of the tooth group (22), and a spring (73) device on the other side. The device hole (74), the pressing member (7〇) corresponding to the joint portion (a) of the bevel moving member (60) is provided with a joint portion (75). The hand rest portion (80) is sleeved on the arm frame connection On the part (1〇), the bottom part corresponds to the outer frame connection part (1G), and the outer side is provided with a receiving groove (81), and the receiving groove (81) is provided with a cover plate (ς> 〇). The locking post (13) corresponding to the bottom part of the armrest frame connecting portion (1〇) is provided with a locking hole (91), and the bottom plate of the cover plate (90) is provided with a plurality of pressing strips (%), which is tight The strip (92) can effectively press the jaws placed on the joint portion (10) of the handrail frame, and at the same time reduce the frictional force generated by the respective components when moving with the cover plate (9〇). Please refer to the fourth, fifth and sixth parts. As shown in the seven figures, when the button (7〇) is pressed inward, the pressing member (70) is disengaged from the original position and the engaging tooth group (72) and the tooth of the movable frame wood (20) are attached thereto. Group (22) is disengaged so that the movable frame (2〇) is available The armrest frame (ίο) moves forward and backward, but its movement restriction is equivalent to the movement range of the shoulder block (24) in the socket (12) and the moving frame (2〇) moves, the shrapnel thereon (2)) The semi-circular groove group of the joint portion (1〇) of the armrest frame ((1) is closely fitted to form a multi-segment moving structure, and at the same time, the bevel moving member (6()) is pushed by the pressing member (7G), on which The inclined face (61) forces the combined cylinder (51) of the granular member (9) to move the positioning member (50) along the (271) of the movable frame (2), so that the upper tooth group (9) and the lower tooth group (9) respectively The teeth (43) of the rotating positioning member (40) and the tooth group (34) of the moving member (3) are disengaged from engagement, so that the turning position member (40) can be disposed in the circular groove (31) of the moving member (10). 10 IV144U/18
内轉動’而移動件⑽可於⑼活動框 ⑻内沿細⑽_，_自_位置、旋： ’其上之半圓槽組⑹ …動件（30) -端之滾珠（332)緊密配合，形成一多段 式轉動結構，而觸件⑽移崎，其另—端之滚珠⑽ ，與活動框架（2G)之半圓槽組（251)緊密配合，形成一多 段式移動結構，當調整完畢後，即可放開押按件⑽，此時 押按件（70)彈簧裝置孔（74)内之彈簧（73)與扶手架連接 部（10)之阻隙板體（⑷）產生反作用力，令押按件（7〇) 回歸原位’其上的卡合齒組（72)重新與活動框架⑼）之齒 組（22)卡合’使活動框架（2〇)位置受固定而斜面移動件 (60)文押按件（7〇)拉動歸位，同時，定位件（5〇)之彈性 το件（52)與活動框架（2〇)之擋板二（27)產生反作用力， 令定位件（50)歸位，上段齒組（53)、下段齒組⑸）重新 與轉動定位件（40)之輪齒（43)、移動件（3〇)之齒組（34) 卡合，使轉動定位件（40)、移動件（30)位置受固定。 本創作意欲涵蓋對於熟悉此相關技術人士而言係顯而易 知的設計，因此，申請專利範圍應根據最廣的詮釋，以包含所 有此類相似的設計、配置、與應用領域。 11 M440718 【圖式簡單說明】 第一圖 係本創作之立體圖 第二圖 係本創作之結構分解一圖 第三圖 係本創作之結構分解二圖 第四圖 係本創作之立體剖面圖 第五圖 係本創作之卡合狀態示意圖 第六圖 係本創作之釋放狀態示意圖 第七圖 係本創作之活動框架、移動件、轉動定位件之移動 動作示意圖 第八圖 係本創作之剖面示意圖 12 M440718The inner rotating 'and the moving member (10) can be tightly matched in the (9) movable frame (8) along the thin (10)_, _ _ position, rotary: 'the semi-circular groove group (6) ... the moving member (30) - the end ball (332) A multi-stage rotating structure, and the contact member (10) is moved to the bottom, and the other end of the ball (10) is closely matched with the semi-circular groove group (251) of the movable frame (2G) to form a multi-stage moving structure, when the adjustment is completed. , the button (10) can be released, and the spring (73) in the spring device hole (74) of the pressing member (70) and the backlash plate body ((4)) of the armrest frame connecting portion (10) generate a reaction force. Let the button (7〇) return to the original position. The engaging tooth set (72) is re-engaged with the tooth set (22) of the movable frame (9). The movable frame (2〇) position is fixed and the bevel is moved. (60) The shackle is pulled back by the piece (7〇), and at the same time, the elastic τ (52) of the positioning piece (5〇) and the baffle 2 (27) of the movable frame (2〇) generate a reaction force, The positioning member (50) is returned, and the upper tooth group (53) and the lower tooth group (5) are re-engaged with the teeth (43) of the rotating positioning member (40) and the tooth group (34) of the moving member (3). Positioning the rotating member (40), the movable member (30) is fixed by the position. This creation is intended to cover designs that are readily apparent to those skilled in the art, and therefore, the scope of the patent application should be based on the broadest interpretation to encompass all such similar designs, configurations, and applications. 11 M440718 [Simple description of the diagram] The first picture is the perspective view of the creation. The second picture is the structural decomposition of the creation. The third picture is the structural decomposition of the creation. The fourth picture is the third section of the creation. Figure 6 is a diagram showing the state of the snap-in state of the creation. The seventh diagram is the schematic diagram of the release state of the creation. The seventh diagram is the schematic diagram of the movement of the active frame, the moving part and the rotating positioning part of the creation. The eighth figure is a schematic diagram of the creation of the creation 12 M440718
【主要元件符號說明】 (10) 扶手架連接部 (11) 半圓槽組 (12) 穿槽 (13) 鎖合柱 (14) 按鍵裝置槽 (141)阻隙板體 (20) 活動框架 (21) 彈片 (22) 齒組 (23) 移動件裝置槽 (231) 穿孔 (232) 滑轨 (24) 擋塊 (25) 擋板一 (251)半圓槽組 (26) 導引塊 (261) 組合槽 (262) 凸塊 (27) 擋板二 (271)導引執 (30)移動件 (31) 圓槽 (311)圓孔 (32) 凹槽 (33) 穿孔 (331) 彈簧 (332) 滚珠 (34) 齒組 (40) 轉動定位件 (41) 圓柱體 (42) 半圓槽組 (43) 輪齒 (50) 定位件 (51) 組合圓柱 (52) 彈性元件 (53) 上段齒組 (54) 下段齒組 (55) 導引槽 (56) L型滑行槽 (60) 斜面移動件 (61) 斜面孔 (62) 接合部 13 M440718 (63)導引槽 (70) 押按件 (71) 凹槽 (72) 卡合齒組 (73) 彈簧 (74) 彈簧裝置孔 (75) 對應接合部 (80) 手靠部 (81) 容置槽 (90) 蓋板 (91) 鎖合孔 (92) 迫緊條[Description of main component symbols] (10) Armrest frame connection (11) Semi-circular groove group (12) Grooving groove (13) Locking column (14) Button device slot (141) Barrier plate body (20) Movable frame (21 ) Shrapnel (22) Tooth set (23) Moving part device slot (231) Perforation (232) Slide rail (24) Stop block (25) Baffle one (251) Semi-circular groove set (26) Guide block (261) Combination Slot (262) Bump (27) Baffle 2 (271) Guide (30) Moving member (31) Round groove (311) Round hole (32) Groove (33) Perforation (331) Spring (332) Ball (34) Tooth set (40) Rotating locating element (41) Cylinder (42) Semi-circular groove set (43) Gear teeth (50) Locating element (51) Combined cylinder (52) Elastic element (53) Upper section tooth set (54 ) Lower tooth set (55) Guide groove (56) L-shaped slide groove (60) Bevel moving part (61) Oblique face (62) Engagement part 13 M440718 (63) Guide groove (70) Pressing piece (71) Groove (72) Engagement tooth set (73) Spring (74) Spring device hole (75) Corresponding joint (80) Hand rest (81) accommodating groove (90) Cover plate (91) Locking hole (92 Tightening strip