1302129 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種液壓煞車系統，特別是有關於一 種可防止外界空氣滲入之液壓煞車系統。 【先前技術】 請參閱第1圖，一種習知之液壓煞車系統1主要是由 f 一煞車總泵10、一煞車卡鉗30以及一輸油管50所構成。 煞車總泵10包括有一儲油槽11、一第一油室12、一 第二油室13、一第一通道14、一第二通道15、一柱塞16、 一第一單向皮碗Π、一第二單向皮碗18、一彈簧19、一 扣環20及一手柄2卜儲油槽11、第一油室12及第二油室 13中容納有一煞車油（未顯示）。儲油槽11是分別經由 第一通道14及第二通道15來連通於第一油室12及第二油 室13。柱塞16是以移動之方式設置於第一油室12及第二 > 油室13之中。第一單向皮碗17是套設於柱塞16之上，並 且第一單向皮碗17是抵接於第一油室12之一内壁12a。 第二單向皮碗18亦是套設於柱塞16之上，並且第二單向 皮碗18是抵接於第二油室13之一内壁13a以及位於第一 通道14與第二通道15之間。值得注意的是，藉由第二單 向皮碗18之設置，煞車油可從第一油室12經由第二單向 皮碗18流至第二油室13之中，但其並無法從第二油室13 經由第二單向皮碗18流至第一油室12之中。彈簧19是設 置於第二油室13之中，並且彈簧19是連接於柱塞16與第 0134-A2167 丌 WF(N2);A-439;hawdong 1302129 • 二油室13之内壁13a之間。此外，彈簀19可先具有一預 壓彈力。扣環20是設置於第一油室12之一端部12b上， 並且扣環20是抵接於柱塞16，以將柱塞16定位於第一油 室12及第二油室13之中。在此，柱塞16可藉由彈簧19 所提供之預壓彈力而抵接於扣環20。手柄21是連接於柱 塞16,其可用來驅使柱塞16在第一油室12及第二油室13 中移動。 煞車卡鉗30具有一缸體31、一第三油室32、一活塞 1 33、一油封34、一第一煞車片35、一第二煞車片36及一 碟盤37。第三油室32是位於缸體31之中，並且第三油室 32中亦容納有煞車油。活塞33是以移動之方式設置於缸 體31之中，並且活塞33是連接於第三油室32。油封34 是設置於缸體31之中，並且油封34是抵接於活塞33之外 壁上，以防止第三油室32中之煞車油從缸體31與活塞33 之間流出。第一煞車片35是連接於活塞33。第二煞車片 36是連接於缸體31，並且第二煞車片36是相對於第一煞 車片35。碟盤37是設置於第一煞車片35與第二煞車片36 之間。 輸油管50是連接於煞車總泵10之第二油室13與煞車 卡鉗30之第三油室32之間。 當以手柄21驅使柱塞16移動時，套設於柱塞16上之 第二單向皮碗18會經過第二通道15，以將第二油室13中 之煞車油經由輸油管50推向煞車卡鉗30之第三油室32。 此時，煞車卡鉗30之活塞33即可被推動，因而使得第一1302129 IX. Description of the Invention: [Technical Field] The present invention relates to a hydraulic brake system, and more particularly to a hydraulic brake system capable of preventing infiltration of outside air. [Prior Art] Referring to Fig. 1, a conventional hydraulic brake system 1 is mainly composed of a brake master cylinder 10, a brake caliper 30, and an oil delivery pipe 50. The brake master cylinder 10 includes an oil storage tank 11, a first oil chamber 12, a second oil chamber 13, a first passage 14, a second passage 15, a plunger 16, a first one-way cup, A second one-way cup 18, a spring 19, a buckle 20 and a handle 2, the oil reservoir 11, the first oil chamber 12 and the second oil chamber 13 receive a brake oil (not shown). The oil reservoir 11 communicates with the first oil chamber 12 and the second oil chamber 13 via the first passage 14 and the second passage 15, respectively. The plunger 16 is disposed in the first oil chamber 12 and the second > oil chamber 13 in a moving manner. The first one-way cup 17 is sleeved on the plunger 16, and the first one-way cup 17 abuts against one of the inner walls 12a of the first oil chamber 12. The second one-way cup 18 is also sleeved on the plunger 16, and the second one-way cup 18 is abutted against one of the inner walls 13a of the second oil chamber 13 and is located at the first passage 14 and the second passage 15 between. It should be noted that, by the arrangement of the second one-way cup 18, the brake oil can flow from the first oil chamber 12 to the second oil chamber 13 via the second one-way cup 18, but it cannot be The second oil chamber 13 flows into the first oil chamber 12 via the second one-way cup 18. The spring 19 is disposed in the second oil chamber 13, and the spring 19 is connected between the plunger 16 and the 0134-A2167 WF (N2); A-439; hawdong 1302129 • the inner wall 13a of the second oil chamber 13. In addition, the magazine 19 can have a preloading force first. The retaining ring 20 is disposed on one end portion 12b of the first oil chamber 12, and the retaining ring 20 abuts against the plunger 16 to position the plunger 16 in the first oil chamber 12 and the second oil chamber 13. Here, the plunger 16 can be abutted against the buckle 20 by the pre-stressing force provided by the spring 19. The handle 21 is coupled to a plunger 16 that is operable to urge the plunger 16 to move within the first oil chamber 12 and the second oil chamber 13. The brake caliper 30 has a cylinder block 31, a third oil chamber 32, a piston 1 33, an oil seal 34, a first brake shoe 35, a second brake shoe 36 and a disk 37. The third oil chamber 32 is located in the cylinder block 31, and the brake oil is also accommodated in the third oil chamber 32. The piston 33 is disposed in the cylinder 31 in a moving manner, and the piston 33 is connected to the third oil chamber 32. The oil seal 34 is disposed in the cylinder block 31, and the oil seal 34 abuts against the outer wall of the piston 33 to prevent the brake oil in the third oil chamber 32 from flowing out between the cylinder block 31 and the piston 33. The first brake shoe 35 is coupled to the piston 33. The second brake shoe 36 is coupled to the cylinder block 31, and the second brake shoe 36 is opposed to the first brake shoe 35. The disk 37 is disposed between the first brake shoe 35 and the second brake shoe 36. The oil delivery pipe 50 is connected between the second oil chamber 13 of the brake master cylinder 10 and the third oil chamber 32 of the brake caliper 30. When the plunger 16 is driven by the handle 21, the second one-way cup 18 sleeved on the plunger 16 passes through the second passage 15 to push the brake oil in the second oil chamber 13 to the brake through the oil pipeline 50. The third oil chamber 32 of the caliper 30. At this time, the piston 33 of the brake caliper 30 can be pushed, thus making the first
〇134-A2167 丌 WF(N2);A-439;hawdong 1302129 == 二煞車片36夾緊轉動中之碟盤W 成…、車制動效果。在另一方面，當煞車結 ::主塞厂因彈菁19所提供之彈性回復力而移動至4 始^處’而第-煞車片35及第二煞車片36會因^7 :輪!=而ί: ί活塞。此時’多餘的煞車油會經 之中。 /至13及第一通道15流回至儲油槽u …、而田液壓煞車系統1未被操作時，儲油槽 :油室12、第二油室13、輸油f5G及第三油室32中之= 由=與外界大氣壓力趨近相同，如此將易導致外； 二讀由油封34等處渗人煞車油之中，因 此外，由於第二單向皮碗18會隨著柱塞16、= 迢15 ’故第二單向皮碗18常會因與第二通道15 之道壁摩擦而發生磨損。 有鑑於此’本發明之目的是要提供—種液壓煞 、、先其可有效防止外界空氣渗入，以確保煞車制動效果。 【發明内容】 本發明基本上採用如下所詳述之特徵以為了要解決上 述之問題。也就是說’本發明包括一煞車總泵，二〇 134-A2167 丌 WF (N2); A-439; hawdong 1302129 == Two-way car 36 clamps the rotating disc W into..., the car brake effect. On the other hand, when the car is closed: the main plug factory moves to the 4th position due to the elastic restoring force provided by the elastic cyanine 19, and the first car piece 35 and the second car piece 36 will be due to the ^7: wheel! = and ί: ί piston. At this point, the excess brake oil will pass through. / to 13 and the first passage 15 flows back to the oil storage tank u ..., while the field hydraulic brake system 1 is not operated, the oil storage tank: the oil chamber 12, the second oil chamber 13, the oil f5G and the third oil chamber 32 = = is the same as the external atmospheric pressure, so it will easily lead to the outside; the second reading is infiltrated by the oil seal 34 and so on, so the second one-way cup 18 will follow the plunger 16, = 迢 15 'The second unidirectional cup 18 is often worn by friction with the wall of the second passage 15 . In view of the above, the object of the present invention is to provide a hydraulic hydrant, which can effectively prevent the infiltration of outside air to ensure the braking effect of the brake. SUMMARY OF THE INVENTION The present invention basically employs the features detailed below in order to solve the above problems. That is, the invention includes a brake master cylinder, two
=曹、-第-油室、—第二油室、—通道、—第塞、 :弟二柱塞、一第一單向皮碗、一第二單向皮碗、一 無性TL件、一第二彈性元件、一扣環及一手柄，其中，該 儲油槽、該第一油室及該第二油室係容納有一煞車油，嗲 通道係位於該第-油室與該第二油室之間，該儲油槽係S Α21677TWF(N2)；A-439；hawdong 8 1302129 . 由該通道連通於該第一油室及該第二油室，該第一柱塞係 以移動之方式設置於該第一油室之中，該第二柱塞係以移 動之方式設置於該第二油室之中，該第一單向皮碗係套設 於該第一柱塞之上，並且係抵接於該第一油室之一第一内 壁，該第二單向皮碗係係套設於該第二柱塞之上，並且係 抵接於該第二油室之一第二内壁，該第一彈性元件係連接 於該第一柱塞與該第二柱塞之間，該第二彈性元件係連接 於該第二柱塞與該第二内壁之間，該扣環係設置於該第一 油室之*^端部上’並且係抵接於該弟*^柱基’用以將该弟 一柱塞定位於該第一油室之中，以及該手柄係連接於該第 一柱塞，用以驅使該第一柱塞及該第二柱塞移動；一煞車 卡鉗；以及一輸油管，連通於該第二油室與該煞車卡鉗之 間。 同時，根據本發明之液壓煞車系統，該儲油槽及該第 一油室中之該煞車油係經由該第二單向皮碗流至該第二油 室之中。 為使本發明之上述目的、特徵和優點能更明顯易懂， 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】 茲配合圖式說明本發明之較佳實施例。 請參閱第2圖，本實施例之液壓煞車系統100主要包 括有一煞車總泵110、一煞車卡鉗130以及一輸油管150。 煞車總泵110具有一儲油槽111、一第一油室112、一 第二油室113、一通道114、一第一柱塞115、一第二柱塞 0134-A21677TWF(N2)；A-439；hawdong 1302129 116 第一單向皮碗U7、一第二單向皮碗118、一第一 弹性元件119、一第二彈性元件12〇、一扣環121及一手柄 122 ° 儲油槽111、第一油室112及第二油室113中容納有 - 一煞車油（未顯示）。通道114是位於第一油室112與第 =油室113之間，以及儲油槽lu是經由通道114連通於 第一油室112及第二油室113。 _ 第一柱塞115是以移動之方式設置於第一油室112之 中，而第二柱塞116是以移動之方式設置於第二油室113 之中。 第一單向皮碗117是套設於第一柱塞115之上，並且 第一單向皮碗117是抵接於第一油室112之一第一内壁 112a。第一單向皮碗118是套設於第二柱塞之上，並 且第二單向皮碗118是抵接於第二油室113之一第二内壁 H3a。值得注意的是，藉由第二單向皮碗ιΐ8之設置，煞 | 車油可從第一油室112及/或儲油槽lu經由第二單向皮碗 118流至第二油室113之中，但其並無法從第二油室 經由第二單向皮碗118流至第—油室112及/或儲油槽⑴ 之中。 第一彈性元件119是連接於第一柱塞115與第二柱塞 之間，而第二彈性元件12〇是連接於第二柱塞丨π與 第一内壁113a之間。特別的是，第一彈性元件119及第二 彈性元件120可分別先具有一預壓彈力。 扣環121是設置於第一油室112之一端部U2b上，並 0134-A21677TWF(N2)；A-439；hawdong \ 10 1302129 .且扣環121是抵接於第一柱塞ii5，以將第一柱塞115定 位於第一油室112之中。在此，第一柱塞115可藉由第一 彈性元件119所提供之預壓彈力而抵接於扣環121。 ‘ 手柄122是連接於第一柱塞115，其可用來驅使第一 - 柱基115及苐一柱塞116移動。 煞車卡鉗130具有一缸體13卜一第三油室132、一活 塞133、一油封134、一第一煞車片135、一第二煞車片136 及一碟盤1 3 7 〇 •第三油室132是位於缸艘⑶之中，並且第三油室132 中亦谷納有煞車油。活塞13 3是以移動之方式設置於缸體 131之中’並且活塞133是連接於第三油室132。油封134 疋$又置於缸體131之中’並且油封134是抵接於活塞133 之外壁上，以防止第三油室132中之煞車油從缸體131與 活基13 3之間流出。第一煞車片13 5是連接於活塞13 3。 第二煞車片136是連接於缸體131，並且第二煞車片136 _ 是相對於第一煞車片135。碟盤137是設置於第一煞車片 135與第二煞車片136之間。 輸油管150是連接於煞車總泵110之第二油室113與 煞車卡甜13 0之弟三油室13 2之間。 當以手柄122驅使第一柱塞115移動時，由於第一彈 性元件119之推擠，第二柱塞116亦會隨之移動。此時， 第一 /由至113中之煞車油（或甚至是儲油槽111與第一油 室112中之煞車油）會經由輸油管15〇被推向煞車卡鉗 之第三油室Π2。因此，煞車卡钳13〇之活塞133即可被 0134 - A21677TWF(N2);A-439;hawdong 1302129 推動，而使得第一煞車片135及第二煞車片136夾緊轉動 中之碟盤137,進而達成煞車制動效果。在另一方面，當 煞車結束時，手柄122、第一柱塞115及第二柱塞116可 因苐一彈性元件119及弟一彈性元件120所提供之彈性回 復力而移動至其原始位置處，而第一煞車片丨35及第二煞 車片136會因碟盤137之轉動偏擺而輕微推動活塞I”。 此時，多餘的煞車油會經由輸油管15〇流回至第二油室113 之中。 當液壓煞車系統100未被操作時，由於第一彈性元件 119對於第二柱塞116之推擠作用’故第二油室ιΐ3、輸油 管⑼及第三油室132中的煞車油會具有一殘餘壓力，而 此煞車油中的殘餘壓力並候以推動煞車卡鉗之活塞 133。如上所述’由於煞車油中的殘餘壓力是高於大氣壓 力，故外界空氣便無法經由油封134等處滲人煞車油之 中’如此即可石$保液壓敏直备Μ Λ ΑΑ 冰士认势-〜士0之煞車制動效果。此 外，由於弟^一早向皮碗118 71¾ + y mu 疋在低壓之環境下經過 I 弟—早向皮碗118會較不易發生磨損。 雖然本發明已以較佳眘#彳丨4 、 限定本發明，任何熟習此項技蓺 工非用乂 ^ 抆食考在不脫離本發明之精 神和犯圍内，當可作些許之更 今 護範圍當視後附之申請專利’ 0此本發明之保 寻利乾圍所界定者為準。 〇134-A21677TWF(N2);A-439;hawdong 1302129 ^ 【圖式簡單說明】 第1圖係顯示一習知之液壓煞車系統之部份剖面示意 圖；以及 第2圖係顯示本發明之液壓煞車系統之部份剖面示意 圖。 【主要元件符號說明】 ( 1、100〜液壓煞車系統 10、 110〜煞車總泵 11、 111〜儲油槽 12、 112〜第一油室 12a、13a〜内壁 12b、112b〜端部 13、 113〜第二油室 14〜第一通道 15〜第二通道 16〜柱塞 17、 117〜第一單向皮碗 18、 118〜第二單向皮碗 19〜彈簧 20、 121〜扣環 21、 122〜手柄 30、 130〜煞車卡鉗 31、 131〜缸體 0134-A21677TWF(N2)；A-439；hawdong 1302129 32、 132〜 第三油室 33 ^ 133〜 活塞 34、 134〜 油封 35 ^ 135〜 第一煞車片 36、 136〜 第二煞車片 37、 137〜 碟盤 50、 150〜 輸油管 112a 〜第- -内壁 113a 〜第二 二内壁 114^ …通道 115- 、第一 柱基 116^ 、第二 .柱塞 119- 、第一 彈性元件 120- 、第二 .彈性元件= Cao, - the first - oil chamber, - the second oil chamber, - the passage, the first plug, the second plunger, a first one-way cup, a second one-way cup, a asexual TL, a second elastic member, a buckle and a handle, wherein the oil reservoir, the first oil chamber and the second oil chamber receive a brake oil, and the channel is located in the first oil chamber and the second oil Between the chambers, the oil storage tank is S Α 21677TWF (N2); A-439; hawdong 8 1302129. The passage is connected to the first oil chamber and the second oil chamber, and the first plunger is arranged in a moving manner. In the first oil chamber, the second plunger is disposed in the second oil chamber in a moving manner, and the first one-way cup is sleeved on the first plunger, and is Abutting on the first inner wall of the first oil chamber, the second one-way cup system is sleeved on the second plunger and abuts against the second inner wall of the second oil chamber. The first elastic element is connected between the first plunger and the second plunger, and the second elastic element is connected between the second plunger and the second inner wall, the buckle is disposed on The first oil chamber is on the end of the first oil chamber and is abutted against the younger column to position the younger plunger in the first oil chamber, and the handle is connected to the first a plunger for driving the first plunger and the second plunger to move; a brake caliper; and an oil delivery pipe connected between the second oil chamber and the brake caliper. Meanwhile, according to the hydraulic brake system of the present invention, the brake oil in the oil reservoir and the first oil chamber flows into the second oil chamber via the second one-way cup. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] A preferred embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 2, the hydraulic brake system 100 of the present embodiment mainly includes a brake master cylinder 110, a brake caliper 130, and an oil delivery pipe 150. The brake master cylinder 110 has an oil storage tank 111, a first oil chamber 112, a second oil chamber 113, a passage 114, a first plunger 115, and a second plunger 0334-A21677TWF (N2); A-439 ;hawdong 1302129 116 first one-way cup U7, a second one-way cup 118, a first elastic element 119, a second elastic element 12〇, a buckle 121 and a handle 122 ° oil reservoir 111, the first An oil chamber 112 and a second oil chamber 113 contain a brake oil (not shown). The passage 114 is located between the first oil chamber 112 and the = oil chamber 113, and the oil reservoir lu is communicated to the first oil chamber 112 and the second oil chamber 113 via the passage 114. The first plunger 115 is disposed in the first oil chamber 112 in a moving manner, and the second plunger 116 is disposed in the second oil chamber 113 in a moving manner. The first one-way cup 117 is sleeved on the first plunger 115, and the first one-way cup 117 is abutted against one of the first inner walls 112a of the first oil chamber 112. The first one-way cup 118 is sleeved on the second plunger, and the second one-way cup 118 is abutted against one of the second inner walls H3a of the second oil chamber 113. It should be noted that, by the arrangement of the second one-way leather bowl 煞8, the vehicle oil can flow from the first oil chamber 112 and/or the oil storage tank lu through the second one-way cup 118 to the second oil chamber 113. However, it does not flow from the second oil chamber to the first oil chamber 112 and/or the oil reservoir (1) via the second one-way cup 118. The first elastic member 119 is coupled between the first plunger 115 and the second plunger, and the second elastic member 12 is coupled between the second plunger π and the first inner wall 113a. In particular, the first elastic member 119 and the second elastic member 120 may each have a pre-stressing force. The buckle 121 is disposed on one end U2b of the first oil chamber 112, and is 03-44-21677TWF (N2); A-439; hawdong \ 10 1302129. The buckle 121 is abutted against the first plunger ii5 to The first plunger 115 is positioned within the first oil chamber 112. Here, the first plunger 115 can be abutted against the buckle 121 by the pre-stressing force provided by the first elastic member 119. The handle 122 is coupled to a first plunger 115 that can be used to urge the first - column 115 and the first plunger 116 to move. The brake caliper 130 has a cylinder 13 and a third oil chamber 132, a piston 133, an oil seal 134, a first brake shoe 135, a second brake shoe 136 and a disk 1 3 7 〇 • a third oil chamber 132 is located in the tank (3), and the third oil chamber 132 also has brake oil. The piston 13 3 is disposed in the cylinder 131 in a moving manner' and the piston 133 is connected to the third oil chamber 132. The oil seal 134 is again placed in the cylinder 131 and the oil seal 134 abuts against the outer wall of the piston 133 to prevent the brake oil in the third oil chamber 132 from flowing between the cylinder 131 and the living base 13 3 . The first brake piece 13 5 is connected to the piston 13 3 . The second brake shoe 136 is coupled to the cylinder block 131, and the second brake shoe 136_ is relative to the first brake shoe 135. The disk 137 is disposed between the first brake shoe 135 and the second brake shoe 136. The oil delivery pipe 150 is connected between the second oil chamber 113 of the brake master cylinder 110 and the third oil chamber 13 2 of the brake truck. When the first plunger 115 is driven by the handle 122, the second plunger 116 is also moved by the pushing of the first elastic member 119. At this time, the first/from the brake oil in the 113 (or even the sump 111 and the brake oil in the first oil chamber 112) is pushed to the third oil chamber Π2 of the brake caliper via the oil pipe 15〇. Therefore, the piston 133 of the brake caliper 13 can be pushed by 0134 - A21677TWF (N2); A-439; hawdong 1302129, so that the first brake piece 135 and the second brake piece 136 clamp the rotating disk 137, thereby Achieve the brake effect. On the other hand, when the brake is over, the handle 122, the first plunger 115 and the second plunger 116 can be moved to their original positions due to the elastic restoring force provided by the elastic member 119 and the elastic member 120. The first brake shoe 35 and the second brake shoe 136 will slightly push the piston I" due to the rotation of the disk 137. At this time, the excess brake oil will flow back to the second oil chamber 113 via the oil pipe 15. When the hydraulic brake system 100 is not operated, due to the pushing action of the first elastic member 119 on the second plunger 116, the brake oil in the second oil chamber ι3, the oil delivery pipe (9) and the third oil chamber 132 will There is a residual pressure, and the residual pressure in the brake oil is waiting to push the piston 133 of the brake caliper. As described above, since the residual pressure in the brake oil is higher than atmospheric pressure, the outside air cannot pass through the oil seal 134 or the like. Infiltrate the car oil in the 'so that can be stone #保液压敏直Μ Λ ΑΑ ΑΑ 认 认 - 〜 ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ ～ After the environment, I brother - early skin The bowl 118 is less prone to wear. Although the present invention has been limited to the invention, it is not limited to the spirit and scope of the present invention. When the scope of the application can be made, it is subject to the patent application of the invention. 0 134-A21677TWF(N2); A-439;hawdong 1302129 ^ BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial cross-sectional view showing a conventional hydraulic brake system; and Fig. 2 is a partial cross-sectional view showing the hydraulic brake system of the present invention. [Main component symbol description] (1, 100 ~Hydraulic brake system 10, 110 - brake master cylinder 11, 111 ~ oil reservoirs 12, 112 - first oil chambers 12a, 13a - inner walls 12b, 112b - end portions 13, 113 ~ second oil chamber 14 - first passage 15 ~ second channel 16 ~ plunger 17, 117 ~ first one-way cup 18, 118 ~ second one-way cup 19 ~ spring 20, 121 - buckle 21, 122 ~ handle 30, 130 ~ brake caliper 31, 131~Cylinder 0334-A21677TWF(N2); A-439;hawdong 1302129 32, 132~ Oil chamber 33 ^ 133 ~ piston 34, 134 ~ oil seal 35 ^ 135 ~ first brake piece 36, 136 ~ second brake piece 37, 137 ~ disk 50, 150 ~ oil pipe 112a ~ - - inner wall 113a ~ second two Inner wall 114^ ... channel 115-, first column base 116^, second. plunger 119-, first elastic element 120-, second. elastic element
0134-A21677TWF(N2)；A-439；hawdong 140134-A21677TWF(N2); A-439;hawdong 14