M267310 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一鉸鏈，特別是指一種門型鉸鏈。 【先前技術】 如圖1〜3所示，習知應用於櫃子（圖未示）之門型鉸 鏈包含一裝設於一門框10上的門框固定座21、一裝設於一 門板20上的門板固定座22、一設置於該門框固定座21與 門板固定座22間而使門板20可相對該門框1〇樞擺之聯結 單το 23，及一設置於該聯結單元23與該門板固定座22間 而可使門板20緩和擺向門框1〇之緩衝機構24。 該聯結單兀23大致包括一左右延伸且可拆離地設置於 该門框固定座21上之卡掣機構25、一設置於該卡掣機構 25上之樞座26，及一樞設於該樞座26與該門板固定座22 間而使該門板20可相對該門框21樞擺之聯結件27。該卡 掣機構25具有一以其右端部鉤置於該門框固定座21右端 之卡掣座251、一樞設於該卡掣座2S1左端之擺扣，及 一没置於該擺扣252上而使該擺扣252彈性扣接於該門框 固定座21左端的彈簧253。 該緩衝機構24包括一固設於該卡掣座251中之氣壓缸 241，及一樞設於該樞座26與該門板固定座22間並與該氣 壓缸241樞接之連動件244。該氣壓缸241具有一缸體242 ，及一穿設於該缸體242上並被恆往外抵推且與該連動件 244樞接連動之缸軸243。該連接件244具有一樞設於該樞 座26與該門板固定座22間之弧板狀板本體245，及二上、 M267310 下間隔地突設於該板本體245頂、底緣並與該缸軸243樞 接連動的樞耳246。 當該門板20位於圖2所示之開啟位置時，該氣壓缸 241之缸軸243是處於被局部推回該缸體241内之狀態，使 侍该氣壓缸241積存有一復位壓力。當朝箭頭方向施一力 1 F於該門板20上’而使該門板2〇由圖2所示之開啟位 置擺向如圖3所示之閉合位置時，該氣壓缸241積存之復 位壓力會將該缸軸243逐漸往外推移並抵推該等樞耳246, :連動該板本冑245進行樞擺，進而帶動固定於該門板固 疋座22上之門板2〇緩慢地朝該門框1 〇靠合。 雖然此門型鉸鏈可使門板20緩慢地自動靠向門框ι〇 然而，因氣脉241是屬f種加卫精密度要求很高的機 械元件，且氣壓缸241越小，製造加工越困難，製造 也就較高，所以，在製造門型絞鏈時，越小型之門型鉸鏈 ，製造成本越高，因而可能影響門型鉸鏈之市場競爭力。 【新型内容】 因此， 型鉸鏈。 本新型之目的，即在提供一 種製造成本低之門M267310 8. Description of the new type: [Technical field to which the new type belongs] This new type is about a hinge, especially a door-type hinge. [Prior art] As shown in FIGS. 1 to 3, a door hinge conventionally applied to a cabinet (not shown) includes a door frame fixing seat 21 installed on a door frame 10, and a door frame 20 installed on a door plate 20. Door plate fixing seat 22, a connection sheet το 23 provided between the door frame fixing seat 21 and the door plate fixing seat 22 so that the door plate 20 can pivot relative to the door frame 10, and a connection unit 23 and the door plate fixing seat There are 22 cushioning mechanisms 24 that allow the door panel 20 to swing toward the door frame 10. The coupling unit 23 generally includes a latch mechanism 25 extending from the left and right and detachably disposed on the door frame fixing base 21, a pivot base 26 disposed on the latch mechanism 25, and a pivot provided on the pivot A connecting member 27 between the seat 26 and the door plate fixing seat 22 so that the door plate 20 can pivot relative to the door frame 21. The latching mechanism 25 has a latching seat 251 hooked on the right end of the door frame fixing seat 21 with a right end portion thereof, a pendant pivotally arranged on the left end of the latching seat 2S1, and a pendant not placed on the pendant buckle 252 The swing buckle 252 is elastically fastened to the spring 253 at the left end of the door frame fixing base 21. The buffer mechanism 24 includes a pneumatic cylinder 241 fixed in the latch seat 251 and a linking member 244 pivoted between the pivot seat 26 and the door panel fixing seat 22 and pivotally connected to the pneumatic cylinder 241. The pneumatic cylinder 241 has a cylinder body 242 and a cylinder shaft 243 which is disposed on the cylinder body 242 and is constantly pushed outward and is pivotally linked with the linkage member 244. The connecting piece 244 has an arc-shaped plate body 245 pivoted between the pivot base 26 and the door panel fixing base 22, and two upper and lower portions of M267310 are protruded from the top and bottom edges of the plate body 245 and spaced from the top and bottom edges of the plate body 245. The cylinder shaft 243 is pivotally connected to the pivoting lug 246. When the door panel 20 is in the open position shown in FIG. 2, the cylinder shaft 243 of the pneumatic cylinder 241 is partially pushed back into the cylinder body 241, so that the pneumatic cylinder 241 accumulates a reset pressure. When a force of 1 F is applied to the door panel 20 in the direction of the arrow and the door panel 20 is swung from the open position shown in FIG. 2 to the closed position shown in FIG. 3, the reset pressure accumulated by the pneumatic cylinder 241 will The cylinder shaft 243 is gradually pushed outward and pushed against the pivot ears 246, which is linked with the plate 胄 245 to pivot, and then drives the door plate 20 fixed on the door plate holder 22 to slowly move toward the door frame 1 〇 Close. Although this door-type hinge can slowly and automatically lean the door panel 20 toward the door frame. However, because the air pulse 241 is a f-type mechanical element with high precision requirements, and the smaller the pneumatic cylinder 241, the more difficult it is to manufacture and manufacture. It is also higher, so when manufacturing door hinges, the smaller the door hinge, the higher the manufacturing cost, which may affect the market competitiveness of the door hinge. [New content] Therefore, type hinge. The purpose of the new model is to provide a door with low manufacturing costs.
一；疋本新型門型鉸鏈，可將_門板可樞轉地聯結在 -門框上’並包含分別安裝固^於該門框與門板上之一門 框固定座與一門板固定座’及設置於該等固定座間之一聯 、…與一緩衝機構。該連結單元包括'组裝於該門框固 疋座上的卡掣機構、一彳& 帛“於該”機構與該門板固定座 間而使_可相對該門框樞擺之聯結件，及一設置於該 6 M267310 構與該門板㈣座間之復位彈片。該緩衝機構則包 二置於該卡掣機構上之油壓缸，及-樞設於該卡掣機 構與忒門板固定座間並與該油壓缸樞接之連動件，該油壓 缸具有-固定於該卡掣機構上且内部填充有液壓油之缸體 穿&於4缸體上並可被該連動件連動而進行突出盘 縮回之動作的叙軸。當該門板自—開啟位置擺向一閉合;立 、夺-亥復位彈片之復位彈力可使該門板怪往該門框靠合 ’並連動該連動件樞擺而拉動該缸軸往外突出，此時該缸 體内之液壓油會提供一使該缸軸緩慢突出的阻溫力，而使 該門板緩和靠向該門框。 由於取代氣壓缸之油壓缸與復位彈片的製造成本較低 ’因此可達到降低Η型絞鏈之整體製造成本的目的。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之_個較佳實施例的詳細說明中，將可 清楚的呈現。 如圖4〜6所不’本新型門型鉸鏈之較佳實施例適用於籲 將一門板30可樞轉地聯結於一門框4〇 i，而使該門板4〇 可相對該門框30於一開啟位置與一閉合位置間位移。該門 鉸鏈包含一固疋於門框3〇上之門框固定座3、一安裝固 定於该門板40上的門板固定座4、一組接於該門框固定座 3與門板固定纟4㈤的聯結單力5，及—組裝於該聯結單元 5與該門板固定座4間之緩衝單元6。 该聯結機構5包括一可拆離地組裝於該門框固定座3 7 M267310 上之卡掣機構51、一罩設於該卡掣機構51外部之樞座55 ，及設置於該樞座55與該門板固定座4間之一聯結件％ 與一復位彈片57。 該卡掣機構51具有一卡掣座52、一樞裝於該卡掣座 52左端之擺扣53，及一設置於該擺扣53上且截面大致呈u 字型之按壓彈片54。 该卡掣座52具有二上下間隔且分別以其鉤狀右端部鉤 置於該門框固定座3右端之水平卡掣翼板521、一固接於該 等卡掣翼板521前緣間的直立接合板523，及一固接於該接 合板523左端且較靠近該門框固定座3之直立頂抵板524。 且每一卡掣翼板521左端具有一背向門框固定座3之限位 缺口 522。 該擺扣53具有一樞設於該等卡掣翼板521左端部之直 知:壓。卩53 1、一自该按壓部53 1後側面往該門框固定座3 突伸之扣接部532,及二分別突設於該按壓部531頂底面之 限位突部533。該按壓部531具有—中空槽孔別，該按壓 彈片54便是開口朝左地設置於該槽孔53〇内，且其弧彎之 :間區段是被-用以樞設該按壓部531的枢軸81限位於該 谷置空間530巾，而其兩相反端部則是分別彈性頂抵於該 卡掣座52之頂抵板524與該扣接部532的相向面，使得該 擺扣，之該等限位突部533恆分別限位嵌置於該卡掣座52 之該等限位缺π 522内’並使擺扣53彈性扣接於門框固定 座3左端。 該樞座55具有二上、下間隔之水平框接板551，及一 8 M267310 山立妾；忒等樞接板551間之直立側板552，且該側板右 山P穿叹有上下延伸之細長卡接孔553。該聯結件56之 兩相反端部是分別藉由樞軸82、83,而分別樞設於該樞座 之^等拖接板551右端部間及樞設於該門板固定座4上 使传門板40可相對門才匡3〇於該開啟與閉合位置間框擺 〇 /復位彈貫57是呈弧彎延伸之片體狀，且具有一呈鉤 狀之鉤a又端部571，及一與該鉤設端部π相反且呈彎折延 伸狀之卡嵌端部572。組裴時，是先將該鉤設端部571鉤置 ㈣於該樞軸83 h然後按壓該復位彈片57，使其展撐變 形並以其卡嵌端部572可拆離地卡嵌固定於該樞座Μ之側 板552的卡接孔553巾，此時，該復位彈菁會因展撐變 开乂而積存使該門板40恆往該門框30靠合之復位彈力。 该緩衝機構6包括一設置於該卡掣座52上之油壓缸61 及一樞設於該樞座55與門板固定座4間並與該油壓缸Η 樞接之連動件62。該油壓缸61具有一内部充填有液壓油（ 圖未不）且被一直立樞軸87樞設固定於該等卡掣翼板521 間的缸體6U，及一穿設於該缸體611上並可沿該缸體611 之軸向進行突出與縮回動作的缸軸612。該連動件62具有 弧_延伸之直立板本體621，及二分別突設於該板本體 621頂、底緣的水平樞耳622，該板本體621之兩相反端部 疋分別藉由樞軸84、85而分別樞接於該等樞接板551右端 間，及樞接於該門板固定座4上。該等樞耳622則是經由 拖軸86樞設於該缸軸61丨頂、底側。 M267310 當該門板40位於圖6所示之該開啟位置時，該聯結件， 56是靠抵於該門板固定座4左端，而該復位彈片π是呈展 撐擴張狀並積存-復位彈力，該油麻61之虹軸612則是. 處於局部縮回該缸體611内之情況。 S要使该門板40由圖6所示之開啟位置擺至圖7所示 之閉合位置時，需施予該門板40 -作用力F，使該門板4〇 · 擺向門框30,此時，該復位彈片57會釋放積存之復位彈力· ，由於該復位彈片57之卡嵌端部572是嵌置固^於該樞座 55之側板552上，所以該復位彈片57會以其鉤設端部571 φ 帶動該聯結件56以樞軸82為支點擺向該門框3〇，而連動 该連動件62之板本體621及樞耳622以樞軸84為支點， </口圖6之箭頭方向旋擺，進而連動該門板固定座4帶 動門板40恆往門框3〇靠合。 由於該等樞耳622是樞設於缸轴612 ±，因此在該連 :件62旋擺過程中，該等樞耳622會帶動該缸軸612往外 犬出該缸體611，此時，缸體611内之液壓油會被引動而產 生一較该復位彈力小之緩衝阻澀力，使得該缸軸6以僅能鲁 緩慢地突出’而使門板40緩慢地靠向該門框30。 相同道理，當要將該門板4〇由圖7之該閉合位置開啟· 至圖6之開啟位置時，僅需往外拉動該門板扣，使該門板 4〇以忒等樞軸82、84為支點樞擺展開，而在展開的同時， 忒聯、、件56與連動件62會相反於圖6箭頭所示方向樞擺 ’而該連動件62之該等樞耳622會推動該红軸612縮回該 缸體611内。 10 M267310 實施時，該連結單元5可不設置該樞座55，而將該聯 結件56原本樞設於樞座55上之一端部及該復位彈片之 卡嵌端部572，直接組接於該卡掣座52的右端部，但實施 時不以上述組接型態為限。 歸納上述，藉由該復位彈片57、緩衝機構6，及各構 件間之樞接方式，使得該門板4〇可於該開啟位置與閉合位. 置間樞擺，並透過該復位彈片57之復位彈力與該油壓缸Μ · 之緩衝阻澀力的相互作用，使得該門板4〇可緩和地恆往該 門框30靠合。 / _ 就整體而言，雖然本新型門型鉸鏈較習知鉸鏈多出一 復位彈片57,但因該復位彈片57的組裝相當的方便，可於 其餘構件皆組裝完成後，再以嵌扣的方式另行裝上，所以 對於組裝加工成本並不會明顯影響，然而，因該油壓缸Μ 與該復位彈片57之製造成本遠低於氣壓缸241，因此，可 相對降低該門型鉸鏈之整體製造成本，所以確實可達到本 新型之目的。 惟以上所述者，僅為本新型之一較佳實施例而已，當籲 不能以此限定本新型實施之範圍，即大凡依本新型申請專 利範圍及新型說明内容所作之簡單的等效變化與修飾，皆· 仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一習知門型鉸鏈的立體分解圖； 圖2是圖i之門型鉸鏈與一門框及—門板組合的俯視 剖面圖’說明該門板位於一開啟位置時的情況· 11 M267310 圖3是類似圖2之視圖，說明該門板位於一閉合位置 時的情形； 圖4是本新型門型鉸鏈之一較佳實施例的立體分解圖· 9 圖5是該較佳實施例之一聯結單元與一門板固定座組 接之立體圖； 圖6之該較佳實施例與一門框及一門板組接之俯視剖 面圖，說明該門板位於一開啟位置時的情況；及 圖7是類似圖6之視圖，說明該門板位於-閉合位置 時的情形。 ° 12 M267310 【主要元件符號說明】 1 0 ¢1 ¢. * 門框 1 *♦*<-*«** 卡掣機構 2 0………… 門板 ««♦«'ΐΟί'β·* 卡掣座 1 ***«*.**« 門框固定座 521"“"* 卡掣翼板 2 2 *，* * …* * 門板固定座 522…*… 限位缺口 聯結單元 5 2 3…*… 接合板 ******** 緩衝機構 524**"*** 頂抵板 241....... 氣壓缸 擺扣 242....... 缸體 53 0*...... 槽孔 243…，… 缸轴 5 3 1…… 按壓部 244 *…… 連動件 532……♦ 扣接部 245 ....... 板本體 5 3 3 *…… 限位突部 246 *…… 才區耳 5 ♦« + *-** + * 按壓彈片 *****«»♦ 卡掣機構 5 5 ******** 樞座 251*·**** 卡掣座 5 51，*..... 才區接板 252....... 擺扣 5 5 2……♦ 側板 25 3 ”**"* 彈簧 5 5 3 ""*** 卡接孔 2 6 * * 樞座 5 6 ........ 聯結件 聯結件 5 ««**#*#« 復位彈片 門框固定座 5 71....... 釣設端部 3 0…“… 門板 5 72 —… 卡嵌端部 門板固定座 6……… 緩衝機構 40……… 門板 a******** 油壓缸 5………- 聯結單元 611…*… 缸體 13 M267310 612*** …缸轴 6 2 2 *才區耳 62^" …連動件 81〜87…樞軸 621… …板本體1. The new door hinge can pivotally connect the door panel to the door frame, and includes a door frame fixing seat and a door plate fixing seat, which are respectively fixed on the door frame and the door plate, and disposed on the door frame. Wait for one of the fixed seats to be connected to a buffer mechanism. The connecting unit includes a latching mechanism assembled on the door frame fixing seat, a link between the " in the 'mechanism and the door plate fixing seat so as to be pivotable relative to the door frame, and a setting A reset spring between the 6 M267310 structure and the door panel. The buffer mechanism includes two hydraulic cylinders placed on the latching mechanism, and-a linkage member pivotally provided between the latching mechanism and the door panel fixed seat and pivotally connected to the hydraulic cylinder. The hydraulic cylinder has- A cylinder fixed to the latch mechanism and filled with hydraulic oil is inserted on the 4-cylinder block and can be linked by the linking member to perform a retraction of the protruding disk. When the door panel swings from the open position to a closed position; the resetting elasticity of the standing and reversing spring shrapnel can make the door panel close to the door frame and link the link to pivot to pull the cylinder shaft to protrude outward. The hydraulic oil in the cylinder will provide a temperature resistance force that makes the cylinder shaft protrude slowly, so that the door panel gently leans against the door frame. Because the manufacturing cost of the hydraulic cylinder and the reset spring replacing the pneumatic cylinder is lower, it can achieve the purpose of reducing the overall manufacturing cost of the Η-type hinge. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. 4 ~ 6 are not shown in FIG 'preferred embodiment of the present novel door hinge of a door panel will be called on to apply 30 pivotally coupled to a frame 4〇i, so that the door panel relative to the frame 30 may 4〇 in a between an open position and a closed position displaced. The door hinge comprises a door frame fixed to the frame piece goods 3〇 holder 3, fixed to a door panel mounted on the holder 4 of the door panel 40, a group connected to the fixed base frame 3 and the door panel is fixed Si single coupling force of 4㈤ 5, and - coupling means mounted to the door panel 5 and the buffer unit 4 of the fixing base 6. The coupling mechanism 5 comprises a detachably assembled to the frame 3 on the card holder 7 M267310 latch mechanism 51, a cover 51 disposed outside of the pivot holder detent mechanism 55, and a pivot disposed on the base 55 to the door holder member coupled to one of 4% and a elastic piece 57 is reset. The engaging means 51 having an engaging seat 52, a latch pivotally mounted on the card holder 52 of the left swing button 53, and a buckle is provided on the pendulum 53, and a substantially u-shaped cross section of the dome 54 is pressed. The engaging seat 52 and having two vertically spaced portions thereof, respectively, the hook-shaped hook disposed in the right horizontal frame holder engaging the right end of the blade 5213, an upright fixed to such card latch between the leading edge flap 521 adapter plate 523, and a fixed to a left end of the coupling plate 523 and closer to the door fixing base 3 of the upright plate 524 abuts the top. And each having a left end engaging the flap 521 away from a fixed base frame 522 of the stopper notch 3. The buckle 53 has a pendulum pivoted to such a straight blade engaging portion 521 of the left-known: pressure. Jie 531, 531 from a rear side of the pressing portion to the fixed base frame 3 extending portion of the fastening projection 532, respectively, and two projections provided on the bottom surface of the pressing portion 531 of the stopper projection 533. The pressing portion 531 has - not hollow slot, pressing the elastic piece 54 is disposed in the opening left 53〇 the slot, and which radiussed of: between segments are - pivoted to the pressing portion 531 pivot 81 limits located valley space 530 towel, while its opposite end portions are abutted against plates are elastically abutting against said engaging seat 52 of the 524 and the opposing surface of the engaging portion 532, such that the pendulum buckle, such limit tabs 533 of constant stopper fitted respectively disposed such that the stopper 52 of the holder engaging the lack π 522 'and swing the elastic fastening buckle 53 on the left end of the door frame fixed base 3. The pivot base 55 has the two, horizontal frame at intervals of adapter plate 551, and an 8 M267310 Shan Li concubines; upright plate between the te other pivoting plates 551 552, and the side right-Hill P wear sigh elongate extension of the vertical snap-hole 553. The opposite end portions 56 of the coupling member by pivots 82 and 83 respectively, and are pivotally connected to the pivot seat of ^ etc. drag between contact plate 551 and a right end portion pivotally connected to the door panel on the holder 4 so that the door panel pass 40 relative to the door before PETER 3〇 between open and closed positions of the swing frame billion / penetration restoring spring 57 is in the form of flakes extending radiussed, and having a hook of a hook-shaped portion 571 and an end, and with a the hook end disposed opposite and as a π-shaped bent extending end portion 572 of the card inlay. When the group Pei, is provided to the hook end of the hook portion 571 opposite to the pivot 83 h iv then presses the elastic piece 57 is reset, so that the card and its modification show support fitted detachably fitted from an end portion 572 fixed to the card side 552 of the pivot base Μ towel snap hole 553, at this time, due to the restoring spring phthalocyanine qe development support becomes open and the door panel so that the reservoir 40 to the frame 30 by a constant elastic restoring force of the engagement. The buffer mechanism 6 comprises a hydraulic cylinder 61 disposed in the seat 52 of the engaging and pivotally mounted to the pivot 55 and the seat holder 4 and the door panel pivotally connected to the hydraulic cylinder Η the interlocking member 62. The hydraulic cylinder 61 having an interior filled with hydraulic fluid (not not) and are arranged upright pivot shaft 87 pivotally secured to the cylinder 6U between these engaging blade 521, and a cylinder 611 disposed through the and can be protruded and retracted on operation of the cylinder shaft 612 in the axial direction of the cylinder 611. The interlocking member 62 has an upstanding plate body 621 of the arc extending _, and two horizontal pivot lugs 622 are disposed on the projecting plate main body 621, the bottom edge of the board body 621 of the two opposite ends respectively by a pivot 84 Cloth , 85 are pivotally connected to the pivot plate 551 such a right end, and pivotally connected to the door panel 4 on the fixing base. Such pivot ears 622 via dragging shaft 86 pivotally connected to the cylinder shaft 61 Shu a top, a bottom side. M267310 When the door panel 40 is positioned as shown in FIG. 6 of the open position, the coupling member 56 is in abutment against the left end of the door panel holder 4, and the return elastic piece is in the form π-shaped expansion strut and reservoir development - elastic restoring force, the Hong shaft 612 of the oil is 61 Ma. in a partially retracted within the case cylinder 611. When the door panel 40 to make S by the pendulum of Figure 6 shown in open position to the closed position shown in FIG. 7, for an administration of the door panel 40-- force F., So that the swing-door panel to the door frame 30 4〇 this case, the return force of the return leaf spring 57 is released · accumulation, the elastic piece 57 because the return of the card 572 is fitted an end portion embedded ^ fixed pivot on the base plate 55255, the leaf spring 57 will be reset so that the hook end portion thereof is provided 571 φ drives the coupling member 56 to the pivot 82 as a fulcrum to swing the door frame 3〇, and the interlocking of the interlocking member 62 of the main body 621 and pivot plate 622 to pivot ear 84 as the fulcrum, < / opening direction of the arrow 6 of FIG. swings out, and then the door interlock holder 4 door led to a constant 40 frames 3〇 connivent. As these pivot ears 622 pivoted to the cylinder axis is ± 612, and therefore the linking: the process of rotating pendulum member 62, such that the pivot ears 622 will drive the dogs out of the cylinder shaft 612 of the cylinder 611, this time, the cylinder 611 within the hydraulic oil is motivated to generate a smaller elastic force of the return buffer astringent resistance force, such that the cylinder shaft 6 projecting to only slowly Lu 'the door panel 40 toward the frame 30 slowly. The same token, when the door panel to open 4〇 FIG. 7 of the closed-position to the open position of FIG. 6, only pulling out the door button, so that the door panel 82, 84 4〇 to pivot as a fulcrum, and the like Intuit expand swing pivot, while at the same expanded, ,, te joint member 56 and the interlocking member 62 will be opposite to the arrow shown in FIG. 6 is pivoted swing 'and the linking member 622 such pivot ear 62 will push the red axis 612 of reduction back to the interior of the cylinder 611. When 10 M267310 embodiment, the connecting means 5 of the pivot base 55 may not be provided, while the coupling member 56 is pivoted to the original end portion of the elastic piece 55 and the return of the card inlay pivot base end portion 572, the card is directly connected to the group a right end portion of the pawl holder 52, but the above-described embodiment is not limited to the group access patterns. Summarized above, by resetting the elastic piece 57, the damper mechanism 6, and each pivotal manner between the member, so that the door can be 4〇 to the closed position and the open position. Interposition swing pivot, and through the return of the elastic piece 57 is reset interaction Μ buffer astringent resistance force to the elastic force of the hydraulic cylinder ·, so that the door panel 4〇 be alleviated by a constant to the frame 30 together. / _ On the whole, although the present novel door hinge than conventional hinge plurality illustrating a resetting elastic piece 57, but the return assembly elastic piece 57 is quite convenient, after the can are assembled to the remaining member, then to insert buckle it is otherwise mounted on, and so does not significantly affect the cost for the assembly process, however, because of the hydraulic cylinder Μ elastic piece 57 and the return of the manufacturing cost is much lower than the air cylinder 241, therefore, can reduce the overall relative to the hinge of the door manufacturing costs, it can indeed achieve the purpose of the present novel. However those described above, only one of the preferred embodiments of the present novel, when this is not called on to limit the scope of the present novel embodiment, i.e., a simple equivalent variations Generally, made by new claims, and under this new content description modifications are within the scope of this still-new patent covers it. [Drawings BRIEF DESCRIPTION OF DRAWINGS FIG 1 is a conventional perspective exploded view of a door hinge; Figure 2 is a view i door hinge with a door and - a top sectional view of the door combination 'indicates that the door panel is in an open position when · 11 M267310 case of FIG. 3 is a view similar to Figure 2 of the described situation when the door panel is in a closed position; FIG. 4 is an exploded perspective view of one in FIG. 9 of the present novel-door hinge 5 is the preferred embodiment of the preferred embodiment one embodiment of the coupling unit and the fixing base perspective view showing the connections of the group of a door panel embodiment; and FIG; embodiment with a door frame and a sectional plan view of the contact set, indicating that the door panel is in an open position when the case of FIG. 6 of the preferred embodiment 7 is a view similar to FIG. 6, the description of the door panel is located - in the case when in the closed position. The main element ° 12 M267310 REFERENCE NUMERALS 1 0 ¢ 1 ¢ * door 1 * ♦ * < -. * «** detent mechanism 20 ............ door« «♦« 'ΐΟί'β · * engaging *** Block 1 «* **« door holder 521 ". "" * engaging blade 22 * * * * * ... * ... ... door stopper holder 522 notched coupling unit 523 ... * ******** ... buffer plate engaging mechanism 524 ** " *** abutting plate 241 ....... ....... pneumatic cylinder jars buckle 530 * 242. slots ..... ... 243, 531 ... cylinder axis of the pressing portion 244 ...... ...... * interlocking fastening member 532 ...... ♦ plate portion 245 of the body 533 ....... ...... * limit bit protrusion 246 * ...... only area of ear 5 ♦ «+ * - ** + * press shrapnel *****« »♦ detent mechanism 55 pivot seat 251 ******** * * * ** engaging the seat 551, only zone * ..... ....... pendulum buckle straps 252 5 5 2 ...... ♦ plate 25 3 "** " * spring 5 5 3 " " *** detent hole 26 * 56 * ........ pivot seat member fastened and 5 «« * # * # «reset dome door holder 571 ....... the end portion 30 is provided to catch ... "... door 572-- ... card inlay end panel Reservation 6 ......... ......... buffer mechanism 40 of the hydraulic cylinder 5 a ******** door ......... - coupling unit 611 ... * ... cylinder 13 M267310 612 *** ... cylinder axis 622 * ear area was 62 ^ " ... interlocking member 621 81~87 ... ... ... pivot plate body