200812850 九、發明說明： 【發明所屬之技術領域】 特別是有關於一 本發明是有關於一種同步煞車系統 種結構簡化之同步煞車系統。 【先前技術】 於車輛中的煞車系統種類繁多， 因而會增加組裝上的複雜度及製 一般來說，目前應用 其大多具有繁雜之構造， 造成本。 【發明内容】 ㉚明基本上採用如下所詳述之特徵以為了 述之問題。也就是說，本發明包 〜上 具二第一操作槓桿;， 知作杈桿，一第一鼓式煞車裝置，具有一 一 一第二鼓式煞轉置，具有-第二煞車搖臂；：=:: Γ牛，一端部、—第二端部及-第-拖接部，： 中q弟一鈿部係相對於該第二端部，以 ^ 係位於該第-端部與該第二端部之間.一第弟—樞接部 抱接於該第-平衡板件，並且 …—千衡板件， 部及-第二枢接部，其中 :而部、-第四端 部，該第二樞接部係位於該第1==目對於該第四端 並且係拖接於該第一枢接部，；第==四端部之間， 端部，以及㈣二端部係㈣於該第第三 〇134-A21765TWF(N2)；A-455；hawdong 6 200812850 抵接於該第一煞車操作裝置與該第一平衡板件之該第一端 部之間；一第二套管，抵接於該第二平衡板件之該第三端 部與該第一鼓式煞車裝置之間；一第一導線，穿設於該第 一套管及該第二套管之中，並且係連接於該第一操作槓桿 與該第一煞車搖臂之間；一第三套管，抵接於該第二煞車 操作裝置與該第一平衡板件之該第二端部之間；一第四套 管，抵接於該第二平衡板件之該第四端部與該第二鼓式煞 車裝置之間；以及一第二導線，穿設於該第三套管及該第 四套管之中，並且係連接於該第二操作槓桿與該第二煞車 搖臂之間。 同時，根據本發明之同步煞車系統，更包括一扭矩彈 簧，係設置並抵接於該第一平衡板件與該第二平衡板件之 間。 又在本發明中，該扭矩彈簧係框設於該第一樞接部及 該弟二框接部上。 又在本發明中，該第一導線係經由該第一平衡板件之 該第一端部及該第二平衡板件之該第三端部而連接於該第 一操作槓桿與該第一煞車搖臂之間。 又在本發明中，該第二導線係經由該第一平衡板件之 該第二端部及該第二平衡板件之該第四端部而連接於該第 二操作槓桿與該第二煞車搖臂之間。 又在本發明中，該第一煞車操作裝置更具有一第一固 定座，該第一操作槓桿係以轉動之方式連接於該第一固定 座，以及該第一套管係抵接於該第一固定座與該第一平衡 0134-A21765TWF(N2)；A-455；hawdong 7 200812850 板件之該第一端部之間。 又在本發明中，該第二煞車操作裝置更 〜 定座，該第二操作槓桿係以轉動之方式連接第二固 座，以及該第三套管係抵接於該第二固定座與固定 板件之該第二端部之間。 /弟一平衡 又在本發財，該第—鼓式鱗裝置更 二座’以及該第二套管係抵接於該第二 ：：固 i而部與該第三固定座之間。 之该弟三 又在本發日种，該第二鼓式煞車裝置更 二座，以及該第四套管係抵接於該 =固 端部與該第四固定座之間。 午之垓弟四 為使本u之上述目的、特徵和優點能更明 下文特舉較佳實施例並配合所附圖式做詳細說明 【實施方式】 级配合圖式說明本發明之較佳實施例。 請參閱第1圖及第2 isi，*墙^ , 主要包括★笛例之同步煞車系統⑽ =括有—弟—煞車操作裝置11〇、一第二煞 1 第—鼓式煞車裝置i3G、—第二鼓式煞抑置 140、'一 λ^· y J Λ r- r\ 平衣置' 彈-166 Γ 第二平衡板件16〇、-扭矩 平尹、166、—弟一套fm、—第二套管172、一第200812850 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a synchronous braking system with a simplified structure of a synchronous braking system. [Prior Art] There are many types of brake systems in vehicles, which increase the complexity and system of assembly. Generally, most of the current applications have complicated structures and cause this. SUMMARY OF THE INVENTION The features detailed below are basically employed to address the problems. That is, the present invention package has two first operating levers; it is known as a mast, and a first drum brake device has a one-to-one second drum type transposition with a second brake rocker arm; :=:: yak, one end, the second end, and the -th-towing part, the middle part of the middle part is opposite to the second end, and the system is located at the first end and the Between the second end portions, a first brother-the pivotal portion is coupled to the first balance plate member, and ... the kilo-balance plate member, the portion and the second pivot portion, wherein: the fourth portion and the fourth end portion The second pivoting portion is located at the first == for the fourth end and is dragged to the first pivoting portion; between the == four ends, the end portion, and the (four) two ends Department (4) in the third 〇134-A21765TWF (N2); A-455; hawdong 6 200812850 abuts between the first brake operating device and the first end of the first balance plate; a second sleeve abutting between the third end of the second balance plate member and the first drum brake device; a first wire passing through the first sleeve and the second sleeve Medium and connected to the first a lever between the first brake rocker arm; a third sleeve abutting between the second brake operating device and the second end of the first balance plate; a fourth sleeve Connected between the fourth end of the second balance plate and the second drum brake device; and a second wire disposed in the third sleeve and the fourth sleeve, and Connected between the second operating lever and the second brake rocker arm. Meanwhile, the synchronous brake system according to the present invention further includes a torque spring disposed between the first balance plate member and the second balance plate member. Further, in the invention, the torsion spring frame is provided on the first pivoting portion and the second frame connecting portion. In the present invention, the first wire is connected to the first operating lever and the first brake via the first end of the first balance plate and the third end of the second balance plate. Between the rocker arms. In the present invention, the second wire is connected to the second operating lever and the second brake via the second end of the first balance plate and the fourth end of the second balance plate. Between the rocker arms. In the present invention, the first brake operating device further has a first fixing seat, the first operating lever is connected to the first fixing seat in a rotating manner, and the first sleeve system abuts the first fixing base A fixing seat is disposed between the first balance 0334-A21765TWF (N2); A-455; hawdong 7 200812850. In the present invention, the second brake operating device is further fixed, the second operating lever is connected to the second fixing seat in a rotating manner, and the third sleeve is abutted to the second fixing seat and fixed. Between the second ends of the panel. / The balance of the brother is also rich in the present, the second drum-type scale device and the second sleeve system abuts between the second portion and the third mount. The third child is also in the present day, the second drum brake device is further configured, and the fourth sleeve system abuts between the = fixed end portion and the fourth fixed seat. The above-mentioned objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments. example. Please refer to Figure 1 and the 2 isi, * wall ^, mainly including the synchronous car brake system of the flute case (10) = including the - brother - brake operating device 11 〇, a second 煞 1 first - drum brake device i3G, - The second drum type suppresses 140, 'a λ^· y J Λ r- r\ flat clothes set 'bomb-166 Γ second balance plate 16 〇, - torque Ping Yin, 166, - a set of fm, - second casing 172, one
173、一第四套管174、一第_ — B ^ 1 弟V、，泉181及一弟二導線182。 有一第二i圖及第2圖所示’第一煞車操作裝置110具 f弟一刼作槓桿111及-第-固定座112,第一操作槓 桿U1是以轉動之方式連接於第-固定座112。”、 〇134-A21765TWF(N2);A-455；hawdong 200812850 第二煞車操作裝置120具有一第二操作槓桿121及一 第二固定座122，第二操作槓桿121是以轉動之方式連接 於第二固定座122。 第一鼓式煞車裝置130具有一第一煞車搖臂131及一 第三固定座132。 第二鼓式煞車裝置140具有一第二煞車搖臂141及一 第四固定座142。 如第3A圖及第3B圖所示，第一平衡板件150具有一 第一端部151、一第二端部152及兩第一枢接部153，第一 端部151是相對於第二端部152，而第一樞接部153是位 於第一端部151與第二端部152之間。更詳細的來說，第 一平衡板件150還具有一第一卡合孔154及一第二卡合孔 155，第一卡合孔154是位於第一端部151上，而第二卡合 孔155是位於第二端部152上。 如第1圖、第2圖、第4A圖及第4B圖所示，第二平 衡板件160是樞接於該第一平衡板件150，並且第二平衡 …板件160具有一第三端部161、一第四端部162及兩第二 樞接部163。第三端部161是相對於第四端部162,第二樞 接部163是位於第三端部161與第四端部162之間，並且 第二樞接部163是枢接於第一平衡板件150之第一樞接部 153。值得注意的是，第一平衡板件150之第一端部151 及第二端部152是分別相對於第二平衡板件160之第三端 部161及第四端部162。更詳細的來說，如第4A圖及第 4B圖所示，第二平衡板件160還具有一第三卡合孔164及 0134-A21765TWF(N2)；A-455；hawdong 9 200812850 一第四卡合孔165，第三卡合孔164是位於第三端部161 上，而第四卡合孔165是位於第四端部162上。 仍如第1圖及第2圖所示，扭矩彈簧166是設置並抵 接於第一平衡板件150與第二平衡板件160之間。更詳細 的來說，扭矩彈簧166是樞設於第一平衡板件150之第一 樞接部153及第二平衡板件160之第二樞接部163上。 第一套管171是抵接於第一煞車操作裝置110與第一 平衡板件150之第一端部151之間。更詳細的來說，第一 套管171是抵接於該第一煞車操作裝置110之第一固定座 112與卡合於第一平衡板件150之第一端部151上之第一 卡合孔154之中。 第二套管172是抵接於第二平衡板件160之第三端部 161與第一鼓式煞車裝置130之間。更詳細的來說，第二 套管172是卡合於第二平衡板件160之第三端部161上之 第三卡合孔164之中與抵接於第一鼓式煞車裝置130之第 三固定座132。 ' 第一導線181是穿設於第一套管171及第二套管172 之中，並且第一導線181是連接於第一煞車操作裝置110 之第一操作槓桿111與第一鼓式煞車裝置130之第一煞車 搖臂131之間。值得注意的是，第一導線181是經由第一 平衡板件150之第一端部151及第二平衡板件160之第三 端部161而連接於第一操作槓桿111與第一煞車搖臂131 之間。 第三套管173是抵接於第二煞車操作裝置120與第一 0134-A21765TWF(N2)；A-455；hawdong 10 200812850 平衡板件150之第二端部152之間。更詳細的來說，第三 套官173是抵接於第二煞車操作裝置120之第二固定座 122與卡合於第—平衡板件15〇之第二端部152上之第二 卡合孔155之中。 第四套管174是抵接於第二平衡板件16〇之第四端部 161與第t鼓式煞車裝£ 14G之間。更詳細的來說，第四 ，官174是卡合於第二平衡板件16〇之第四端部I”上之 第四卡合孔165之中與抵接於第二鼓式煞車裝置14〇之第 四固定座142。 第t導ΐ 182是穿設於第三套管173及第四套管m 之Ϊ ^且第—導線182是連接於第二煞車操作裝置120 之第一^作核卜121與第二鼓式煞車裝置_之第二敏 搖臂141之間。值得注意的是’第二導線ms經由'第一 平衡板件15〇之第二端部152及第二平衡板件⑽之第四 端部162錢接於第二操作槓桿121與第二煞車搖臂141 之間。 此外，在本實施例之中，第一套管m、第二套管172、 第三套管173及第四套管174皆是由具有適度剛性之 所製成。 另外’值得注意的是，當同步煞車系、统100未被操作 時，第二平衡板件16G除了是樞接於第—平衡板件⑼外， 第二平衡板件160尚還會抵接於第_平衡板件⑽。此時， 如第I圖所示，第一端部⑸與第三端部⑹之間的距離 是大於第二端部152與第四端部162之間的距離。 0134-A21765TWF(N2);A - 455;hawdong 200812850 當第二操作™操作作：亦即 及第四套管Π4中之第二導線182會被牙拉又於弟二套管厂3 煞車搖臂141會被第二導線丨 ^ ¥，第二 ^ 踝182所拉動，因而會佶猓笼- 妓式煞車叙置140產生煞車制動效果。 吏件弟- j另方面’當第—煞車操作装置110被掉作時，亦 即當第一操作槓桿ln被择 反知作柃，亦 m及第二套管172,:1作或轉動時，穿設於第-套管 特別的是，由於第二:二=181會被拉動。在此， 小於第-操作槓桿Ui之作動行程之被設計為 拉動之過程中，第一教車搖臂广 弟—導線181被 …、早搖# 131會先被第一導缭】娇 拉動，以使得第-鼓式煞車裝置13〇產生教車所 接著，如第2圖所示，被拉動 /果。 一套管171月楚_太一 蜍線181又會迫使第 笛 及弟一套管172分別擠壓第一平衡板件150之 及第二平衡板件16〇之第三端部i6i，因而 a使传弟—平衡板件15G及第二平衡板件_以第一樞接 :153及第二_⑹為支點來相對轉動。此時，第： ，部151與第三端部161之間的距離會減少，而第二端部 52與第四端部162之間的距離會增加，以及扭矩彈箬166 运被第-平衡板件150與第二平衡板件16〇所擠壓。如上 所述纟於第-平衡板件15〇之第二端部152與第二平衡 板件/160之第四端部162之間的距離已增加，故抵接於第 二=衡板件160之第四端部162與第二鼓式煞車裝置⑽ 之第四固疋座142之間的第四套f 174會迫使第二導線 0134-A21765TWF(N2)；A-455；hawdong 12 200812850 182拉動第二煞車搖臂141。如上所述，當第一煞車操作裝 置110被操作時，第一鼓式煞車裝置130及第二鼓式煞車 裝置140即可同時產生煞車制動效果。 此外，當第一煞車操作裝置110之操作停止時，第一 平衡板件150及第二平衡板件160會藉由扭矩彈簧166所 提供之回復彈力而相對轉動至如第1圖所示之原始位置。 綜上所述，本發明所揭露之同步煞車系統可以簡單之 構造來達成同步煞車制動之效果，且其可具有降低組裝複 雜度及製造成本等優點。 雖然本發明已以較佳實施例揭露於上，然其並非用以 限定本發明，任何熟習此項技藝者，在不脫離本發明之精 神和範圍内，當可作些許之更動與潤飾，因此本發明之保 護範圍當視後附之申請專利範圍所界定者為準。 0134-A21765TWF(N2)；A-455；hawdong 13 \ 200812850 【圖式簡單說明】 弟1圖係顯示本發明之 同 件之平面示意圓； 之同步煞車系統之第一平衡板 之平面示意圖； 同步煞車系統於一操作狀態下 弟2圖係頒示本發明 下之平面示意圖； 叫步煞車系統於另一操作狀態 第3A圖係顯示本發明之 第3B圖係顯示根據第 意圖； 圖之第一平衡板件之俯視 第4A圖係顯示本發 件之平面示意圖；以及 5 乂煞車系統之第二平衡板 第4B圖係顯示根據第 意圖。 弟4A圖之第二平衡板件之仰視 【主要元件符號說明】 100〜同步煞車系統 110〜第一煞車操作裝置 111〜第一操作槓桿 112〜第一固定座 120〜第二煞車操作裝置 121〜第二操作槓桿 122〜第二固定座 130〜第一鼓式煞車裝置 131〜第一煞車搖臂 0134-A21765TWF{N2)；A-455；hawdong 不 示173, a fourth sleeve 174, a __B ^ 1 brother V, a spring 181 and a second conductor 182. There is a second i diagram and a second diagram of the first brake operating device 110 having a lever 111 and a first fixing seat 112. The first operating lever U1 is connected to the first fixing seat in a rotating manner. 112. 〇 134-A21765TWF (N2); A-455; hawdong 200812850 The second brake operating device 120 has a second operating lever 121 and a second fixing seat 122, and the second operating lever 121 is connected to the second in a rotating manner. The second drum brake device 130 has a first brake rocker arm 131 and a third fixed seat 132. The second drum brake device 140 has a second brake rocker arm 141 and a fourth fixed seat 142. As shown in FIG. 3A and FIG. 3B , the first balance plate 150 has a first end portion 151 , a second end portion 152 , and two first pivot portions 153 . The first end portion 151 is opposite to the first end portion 151 . The first end portion 151 is located between the first end portion 151 and the second end portion 152. In more detail, the first balance plate member 150 further has a first engaging hole 154 and a second engaging hole 155, the first engaging hole 154 is located on the first end portion 151, and the second engaging hole 155 is located on the second end portion 152. As shown in Fig. 1, Fig. 2, 4A As shown in FIG. 4B, the second balance plate member 160 is pivotally connected to the first balance plate member 150, and the second balance plate member 160 has a third end portion 161. a fourth end portion 162 and two second pivot portions 163. The third end portion 161 is opposite to the fourth end portion 162, and the second pivot portion 163 is located between the third end portion 161 and the fourth end portion 162. The second pivoting portion 163 is pivotally connected to the first pivoting portion 153 of the first balancing plate member 150. It is noted that the first end portion 151 and the second end portion 152 of the first balancing plate member 150 are The third end portion 161 and the fourth end portion 162 of the second balance plate member 160 are respectively respectively. In more detail, as shown in FIGS. 4A and 4B, the second balance plate member 160 further has a third portion. Engagement hole 164 and 0334-A21765TWF (N2); A-455; hawdong 9 200812850 a fourth engagement hole 165, the third engagement hole 164 is located on the third end portion 161, and the fourth engagement hole 165 is Located on the fourth end portion 162. Still as shown in Figures 1 and 2, the torsion spring 166 is disposed and abuts between the first balance plate member 150 and the second balance plate member 160. More specifically The torque spring 166 is pivotally disposed on the first pivoting portion 153 of the first balance plate member 150 and the second pivoting portion 163 of the second balance plate member 160. The first sleeve 171 is abutted against the first brake operation. Loading 110 is between the first end portion 151 of the first balance plate member 150. In more detail, the first sleeve 171 is abutted against the first fixing seat 112 of the first brake operating device 110 and is engaged with the first The first sleeve 172 is in the first engaging hole 154 on the first end portion 151 of the balance plate member 150. The second sleeve 172 is abutted against the third end portion 161 of the second balance plate member 160 and the first drum brake device. Between 130. In more detail, the second sleeve 172 is engaged with the third engaging hole 164 of the third end portion 161 of the second balance plate member 160 and abuts against the first drum brake device 130. Three mounts 132. The first wire 181 is disposed in the first sleeve 171 and the second sleeve 172, and the first wire 181 is the first operation lever 111 connected to the first brake operating device 110 and the first drum brake device 130 between the first brake rocker arm 131. It should be noted that the first wire 181 is connected to the first operating lever 111 and the first brake rocker via the first end portion 151 of the first balance plate 150 and the third end portion 161 of the second balance plate member 160. Between 131. The third sleeve 173 is abutted between the second brake operating device 120 and the first 0134-A21765TWF (N2); A-455; hawdong 10 200812850 balance plate 150 second end portion 152. In more detail, the third set of seats 173 is a second engagement between the second fixing seat 122 abutting the second brake operating device 120 and the second end portion 152 of the first balancing plate member 15〇. In the hole 155. The fourth sleeve 174 is abutted between the fourth end portion 161 of the second balance plate member 16A and the t-drum brake device 14G. In more detail, in the fourth, the official 174 is engaged with the fourth engaging hole 165 on the fourth end portion I" of the second balance plate member 16" and abuts against the second drum brake device 14 The fourth fixed seat 142. The t-th guide 182 is disposed between the third sleeve 173 and the fourth sleeve m, and the first lead 182 is connected to the first brake operating device 120. Between the core 121 and the second paddle arm 141 of the second drum brake device _. It is noted that the second wire ms passes through the second end portion 152 of the first balance plate member 15 and the second balance plate The fourth end portion 162 of the member (10) is coupled between the second operating lever 121 and the second brake rocker arm 141. Further, in the embodiment, the first sleeve m, the second sleeve 172, and the third sleeve Both the tube 173 and the fourth sleeve 174 are made of moderate rigidity. In addition, it is worth noting that when the synchronous brake system 100 is not operated, the second balance plate 16G is pivotally connected. - outside the balance plate (9), the second balance plate member 160 will still abut against the first balance plate member (10). At this time, as shown in Fig. 1, the first end portion (5) and the third end portion (6) The distance is greater than the distance between the second end 152 and the fourth end 162. 0134-A21765TWF(N2); A - 455; hawdong 200812850 When the second operation TM operates: that is, and the fourth casing Π4 The second wire 182 will be pulled by the tooth and the second casing factory 3, the rocker arm 141 will be pulled by the second wire 丨 ^, the second ^ 182, and thus the cage will be lifted - the 煞 煞 叙 140 140 The brake effect is generated. 吏 弟 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - When making or rotating, the first sleeve is inserted through the first sleeve, and the second: second = 181 is pulled. Here, the actuation stroke smaller than the first operation lever Ui is designed to be pulled, A teaching car rocker arm Guangdi - wire 181 is ..., early shake # 131 will be first pulled by the first guide 娇 娇, so that the first drum type brake device 13 〇 produces the coach, as shown in Figure 2 , Pulled / fruit. A casing 171 month Chu _ Tai Yi 蜍 line 181 will force the first flute and the brother a 172 respectively squeeze the first balance plate 150 and The third end portion i6i of the plate member 16 is balanced, and thus a relative rotation of the balance plate-balance plate member 15G and the second balance plate member _ with the first pivotal connection 153 and the second _(6) as fulcrums. The distance between the portion 151 and the third end portion 161 is reduced, and the distance between the second end portion 52 and the fourth end portion 162 is increased, and the torque magazine 166 is transported by the first balance plate 150. Extrusion with the second balance plate member 16A. As described above, the distance between the second end portion 152 of the first balance plate member 15A and the fourth end portion 162 of the second balance plate member 160 is increased. Therefore, the fourth sleeve f 174 abutting between the fourth end portion 162 of the second=balance plate member 160 and the fourth fixing seat 142 of the second drum brake device (10) forces the second wire 0334-A21765TWF ( N2); A-455; hawdong 12 200812850 182 pulls the second brake rocker arm 141. As described above, when the first brake operating device 110 is operated, the first drum brake device 130 and the second drum brake device 140 can simultaneously generate the brake braking effect. In addition, when the operation of the first brake operating device 110 is stopped, the first balance plate member 150 and the second balance plate member 160 are relatively rotated by the return elastic force provided by the torsion spring 166 to the original as shown in FIG. position. In summary, the synchronous brake system disclosed in the present invention can be easily constructed to achieve the effect of synchronous brake braking, and it can have the advantages of reduced assembly complexity and manufacturing cost. Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the present invention, and it is possible to make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims. 0134-A21765TWF(N2);A-455;hawdong 13 \ 200812850 [Simple diagram of the drawing] The brother 1 shows the plane schematic circle of the same piece of the invention; the plane diagram of the first balance board of the synchronous braking system; The brake system is in a state of operation, the second diagram shows the schematic diagram of the present invention; the step-by-step brake system is in another operation state, and the third diagram shows that the third embodiment of the present invention is shown according to the first intention; 4A of the top view of the balance plate shows a schematic plan view of the present hair piece; and 4B of the second balance plate of the 5 brake system is shown according to the first intention. Looking up the second balance plate of the 4A figure [main component symbol description] 100~ synchronous brake system 110~first brake operating device 111~first operating lever 112~first fixed seat 120~second brake operating device 121~ Second operation lever 122 to second fixing seat 130 to first drum brake device 131 to first brake rocker arm 0334-A21765TWF{N2); A-455; hawdong not shown
U 200812850 132- 〃第三固定座 140- 〃第二鼓式煞車裝置 141- 〃第二煞車搖臂 142- 〃第四固定座 150、 "第一平衡板件 151- -第一端部 152- /第二端部 153、 ^弟一框接部 154- v第一卡合孔 155、 /第二卡合孔 160^ -第二平衡板件 16卜 -第三端部 162〜第四端部 163- ^弟一樞接部 164^ v第三卡合孔 165- -第四卡合孔 166- i扭矩彈簧 171- i第一套管 172- i第二套管 173- ◊第三套管 174- -第四套管 181- -第一導線 182- ^第二導線 0134-A21765TWF(N2)；A-455；hawdongU 200812850 132- 〃third fixed seat 140- 〃second drum brake device 141- 〃 second brake rocker arm 142- 〃 fourth fixed seat 150, "first balance plate member 151- - first end portion 152 - / second end portion 153, ^ first frame portion 154 - v first engaging hole 155, / second engaging hole 160 ^ - second balance plate member 16 - third end portion 162 ~ fourth end 163-^弟一枢接接164 164 v third engaging hole 165- - fourth engaging hole 166- i torque spring 171- i first sleeve 172- i second sleeve 173- ◊ third set Tube 174 - - fourth sleeve 181 - - first wire 182 - ^ second wire 0334-A21765TWF (N2); A-455; hawdong