TWM613635U

TWM613635U - Concatenated unit for chain and its chain plate

Info

Publication number: TWM613635U
Application number: TW110202115U
Authority: TW
Inventors: 吳瑞章
Original assignee: 桂盟企業股份有限公司
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-06-21

Abstract

一種用於鏈條之串接單元與其鏈片，該鏈片包含左右間隔且內外錯位一個內端部與一個外端部。該外端部具有一個外端外側面，及一個相反於該外端外側面的外端內側面，並具有一個貫穿該外端外側面與該外端內側面的外穿孔，該外端外側面是自該外穿孔徑向往該外端內側面弧彎延伸成弧面狀，且該外端部的最大厚度a大於該內端部的厚度b。透過該鏈片之該外端部的最大厚度大於該內端部厚度的結構設計，以及該外端外側面是呈弧面狀的結構設計，可使該鏈片具有較佳強度，而有助於提高整個串接單元結構強度與使用壽命，是一種相當創新實用的創作。A series connection unit for a chain and its chain piece. The chain piece includes an inner end and an outer end that are spaced apart from the left and right and the inner and outer parts are misaligned. The outer end has an outer outer side surface and an outer inner side surface opposite to the outer side surface of the outer end, and has an outer perforation penetrating the outer side surface of the outer end and the inner side surface of the outer end. The outer side surface of the outer end It extends from the outer perforation radially to the inner surface of the outer end into a curved surface, and the maximum thickness a of the outer end portion is greater than the thickness b of the inner end portion. Through the structural design that the maximum thickness of the outer end portion of the chain piece is greater than the thickness of the inner end portion, and the structure design that the outer surface of the outer end is arcuate, the chain piece can have better strength and help It is a very innovative and practical creation to improve the structural strength and service life of the entire series connection unit.

Description

用於鏈條之串接單元與其鏈片Tandem unit for chain and its chain piece

本新型是有關於一種用於鏈條的構件，特別是指一種用於鏈條之串接單元與其鏈片。This new model relates to a component used in a chain, in particular to a series connection unit and its chain piece used in the chain.

傳統鏈條主要是由許多內鏈片與外鏈片依序串接構成，所以製造時，廠商得要同時製備外鏈片與內鏈片。半目鏈是傳統鏈條的改良，是將傳統的外鏈片與內鏈片整合成一個鏈片，並以結構完全相同的多個鏈片依序串接以構成半目鏈，所以廠商僅需製造同一規格之鏈片，可大幅降低備料成本。The traditional chain is mainly composed of many inner chain pieces and outer chain pieces in series, so when manufacturing, the manufacturer has to prepare the outer chain piece and the inner chain piece at the same time. The half-mesh chain is an improvement of the traditional chain. It integrates the traditional outer chain and inner chain into one chain, and connects multiple chains with the same structure in sequence to form a half-mesh chain. Therefore, the manufacturer only needs to manufacture the same chain. The chain piece of specifications can greatly reduce the cost of preparing materials.

半目鏈採用之鏈片包括一體相連且內外錯位設置的一個外端部與一個內端部，一般鏈片的該外端部與該內端部的外形大致相同，雖然有利於沖鍛製造，但這樣的結構設計並無法滿足各種傳動需求，業者通常會針對各種傳動設備的動力傳動運作模式，例如針對機車、自行車、越野車的動力傳動運作模式，就該鏈片之該外端部與該內端部的結構進行各種改良設計。The chain piece used in the half-mesh chain includes an outer end and an inner end that are integrally connected and arranged in a staggered inner and outer positions. Generally, the outer end and the inner end of the chain are roughly the same in shape, although it is advantageous for punching and forging manufacturing, but Such a structural design cannot meet various transmission requirements. The industry usually focuses on the power transmission operation mode of various transmission equipment, such as the power transmission operation mode for locomotives, bicycles, and off-road vehicles. The structure of the end is designed with various improvements.

因此，本新型的目的，即在提供一種具有較佳結構強度而能提升使用壽命的鏈片。Therefore, the purpose of the present invention is to provide a chain piece with better structural strength and improved service life.

於是，本新型鏈片，包含左右間隔的一個內端部與一個外端部，及一個連接在該內端部與該外端部間的連接部，該連接部具有一個使該外端部與該內端部內外錯位的彎折段。該外端部具有一個外端外側面，及一個相反於該外端外側面的外端內側面，並具有一個貫穿該外端外側面與該外端內側面的外穿孔，該外端外側面是自該外穿孔徑向往外朝該外端內側面弧彎延伸成弧面狀，且該外端部的最大厚度a大於該內端部的厚度b。該彎折段環繞該外穿孔弧彎延伸。Therefore, the new chain piece includes an inner end portion and an outer end portion spaced left and right, and a connecting portion connected between the inner end portion and the outer end portion, and the connecting portion has a connecting portion that connects the outer end portion and the outer end portion to the inner end portion. The inner end is a bent section that is misaligned inside and outside. The outer end has an outer outer side surface and an outer inner side surface opposite to the outer side surface of the outer end, and has an outer perforation penetrating the outer side surface of the outer end and the inner side surface of the outer end. The outer side surface of the outer end It extends from the outer perforation radially outward toward the inner surface of the outer end into a curved surface, and the maximum thickness a of the outer end portion is greater than the thickness b of the inner end portion. The bending section extends around the outer perforation arc.

因此，本新型的另一目的，即在提供一種具有較佳結構強度而能提升使用壽命的用於鏈條之串接單元。Therefore, another object of the present invention is to provide a series connection unit for chains that has better structural strength and can increase the service life.

於是，本新型用於鏈條之串接單元，適用於多個依序串接，該串接單元包含兩個間隔相對的鏈片、一個襯套與一個鏈軸。每一該鏈片具有左右間隔的一個內端部與一個外端部，及一個連接在該內端部與該外端部間的連接部，該連接部具有一個使該外端部與該內端部內外錯位的彎折段。該外端部具有一個外端外側面，及一個相反於該外端外側面的外端內側面，且具有一個貫穿該外端外側面與該外端內側面的外穿孔。該外端外側面自該外穿孔徑向往外朝該外端內側面弧彎延伸成弧面狀，且該外端部的最大厚度a大於該內端部的厚度b。該內端部具有一個內端外側面，及一個相反於該內端外側面的內端內側面，並具有一個貫穿該內端外側面與該內端內側面的內穿孔，該外端部之該外端內側面是用以面向相串接之另一串接單元之對應鏈片的該內端部的該內端外側面。該彎折段環繞該外穿孔弧彎延伸。Therefore, the series connection unit for chains of the present invention is suitable for multiple serial connection in sequence. The series connection unit includes two spaced-apart chain pieces, a bushing and a chain shaft. Each of the chain pieces has an inner end and an outer end spaced left and right, and a connecting portion connected between the inner end and the outer end, and the connecting portion has a connecting portion that connects the outer end to the inner end. A bent section that is misaligned inside and outside the end. The outer end portion has an outer outer surface and an outer inner surface opposite to the outer surface of the outer end, and has an outer perforation penetrating the outer surface of the outer end and the inner surface of the outer end. The outer side surface of the outer end extends from the outer perforation radially outward toward the inner side surface of the outer end into an arc shape, and the maximum thickness a of the outer end portion is greater than the thickness b of the inner end portion. The inner end has an inner outer surface, an inner inner surface opposite to the inner outer surface, and an inner perforation penetrating the inner outer surface and the inner inner surface of the inner end. The inner surface of the outer end is used to face the inner outer surface of the inner end of the corresponding chain piece of another serial connection unit connected in series. The bending section extends around the outer perforation arc.

該襯套固定於該等鏈片的該等內穿孔中。該鏈軸穿設在該襯套中，且該鏈軸的兩端分別穿過相串接之另一串接單元的該等鏈片的該等外穿孔，並固定於該另一串接單元的該等外端部。The bush is fixed in the inner perforations of the chain pieces. The chain shaft passes through the bushing, and both ends of the chain shaft respectively pass through the outer perforations of the chain pieces of the other series connection unit connected in series, and are fixed to the other series connection unit的 These outer ends.

本新型的功效在於：透過每一鏈片之該外端部最大厚度大於該內端部厚度的結構設計，以及該外端部之該外端外側面是呈弧面狀的結構設計，可使該鏈片具有較佳強度，以及使該鏈片承受的應力能均勻分佈，而有助於提高整個串接單元結構強度與使用壽命，是一種相當創新實用的創作。The effect of the present invention is: through the structural design that the maximum thickness of the outer end portion of each chain piece is greater than the thickness of the inner end portion, and the structure design that the outer surface of the outer end of the outer end portion is arcuate, it can make The chain piece has better strength, and the stress that the chain piece bears can be evenly distributed, which helps to improve the structural strength and service life of the entire series connection unit. It is a very innovative and practical creation.

在本新型被詳細描述前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

參閱圖1、2、3，本新型用於鏈條之串接單元200的一個第一實施例，適用於多個依序串接以構成一個鏈條，或者是與其它鏈條構件組接以構成一個鏈條。在以下各實施例中，是以相同結構之一個串接單元200和多個串接單元200’依序串接為例進行說明，且為方便說明，會以「'」來標示其它相同的串接單元200與其組成的構件。該串接單元200包含兩個鏈片3、一個襯套4與一個鏈軸5。Referring to Figures 1, 2, and 3, a first embodiment of the series connection unit 200 for a chain of the present invention is suitable for multiple serial connection to form a chain, or to be combined with other chain components to form a chain. . In the following embodiments, a serial connection unit 200 and a plurality of serial connection units 200' of the same structure are serially connected as an example for description, and for the convenience of description, other identical serials will be marked with "'". Connecting unit 200 and its constituent components. The series connection unit 200 includes two chain pieces 3, a bush 4 and a chain shaft 5.

該等鏈片3是內外間隔對稱設置。每一鏈片3包括左右間隔的一個外端部31與一個內端部32、一個連接在該外端部31與該內端部32間的連接部33，及一個設置在該內端部32之凸環部34。The chain pieces 3 are arranged symmetrically at intervals inside and outside. Each link piece 3 includes an outer end portion 31 and an inner end portion 32 spaced left and right, a connecting portion 33 connected between the outer end portion 31 and the inner end portion 32, and a connecting portion 33 arranged on the inner end portion 32. The convex ring part 34.

該外端部31具有一個外端外側面311，與一個相反於該外端外側面311的外端內側面312，且具有一個貫穿該外端外側面311與該外端內側面312之外穿孔313、一個凹設在該外端外側面311且連通該外穿孔313的外環槽314，及一個凹設在該外端內側面312且連通該外穿孔313的內環槽315。此外，該外端外側面311具有一個自該外穿孔313周緣徑向往外朝該外端內側面312方向弧彎延伸成弧面狀之第一弧面區317，及一個自該外穿孔313周緣徑向往外朝該連接部33弧彎延伸成弧面狀之第二弧面區318。該第一弧面區317連接於該外端內側面312，該第二弧面區318連接於該連接部33，且弧彎曲率不同於該第一弧面區317之弧彎曲率。該外端部31的厚度是沿該第一弧面區317漸往該外端內側面312遞減。The outer end portion 31 has an outer outer surface 311, an outer inner surface 312 opposite to the outer outer surface 311, and a perforation penetrating through the outer outer surface 311 and the outer inner surface 312 313. An outer ring groove 314 recessed on the outer side surface 311 of the outer end and connected to the outer hole 313, and an inner ring groove 315 recessed on the inner side surface 312 of the outer end and connected to the outer hole 313. In addition, the outer side surface 311 of the outer end has a first curved surface area 317 that extends from the periphery of the outer hole 313 radially outward toward the inner side surface 312 of the outer end in a curved shape, and a periphery of the outer hole 313 The second arc surface area 318 is arc-shaped and extends radially outward toward the connecting portion 33. The first arc surface area 317 is connected to the inner side surface 312 of the outer end, and the second arc surface area 318 is connected to the connecting portion 33, and the arc curvature rate is different from that of the first arc surface area 317. The thickness of the outer end portion 31 gradually decreases toward the inner surface 312 of the outer end along the first arc surface area 317.

該內端部32呈平板狀，具有一個內端外側面321，與一個相反於該內端外側面321的內端內側面322，並具有一個貫穿該內端外側面321與該內端內側面322之內穿孔323，且還具有一個連接在該內端外側面321與該內端內側面322間，並繞該內穿孔323弧彎延伸的弧彎端面324。The inner end portion 32 is in the shape of a flat plate, has an inner end outer side surface 321, and an inner end inner side surface 322 opposite to the inner end outer side surface 321, and has a penetrating through the inner end outer side surface 321 and the inner end inner side surface The inner perforation 323 of 322 also has an arc end surface 324 connected between the inner outer side surface 321 and the inner end inner surface 322 and extending arc around the inner perforation 323.

該連接部33具有一個使該內端部31與該外端部31內外錯位的彎折段330，該彎折段330具有一個連接該第二弧面區318並環繞該外穿孔313弧彎延伸的弧彎外緣332，與一個緊鄰該外端內側面312並環繞該外穿孔313弧彎延伸的弧彎內緣331，且該弧彎內緣331的弧彎曲率小於該內端部32之該弧彎端面324的弧彎曲率。該凸環部34是突設在該內端內側面322，並連通該內穿孔323，且該凸環部34孔徑等於該內穿孔323孔徑。The connecting portion 33 has a bending section 330 that displaces the inner end portion 31 and the outer end portion 31 inwardly and outwardly, and the bending section 330 has a second arcuate surface area 318 that connects to the second arcuate surface area 318 and extends arcuately around the outer perforation 313 The curved outer edge 332 is adjacent to the inner side surface 312 of the outer end and the curved inner edge 331 that extends around the outer perforation 313 curvedly, and the curvature of the curved inner edge 331 is less than that of the inner end 32 The arc bending rate of the arc end surface 324. The convex ring portion 34 is protrudingly provided on the inner side surface 322 of the inner end and communicates with the inner hole 323, and the hole diameter of the convex ring portion 34 is equal to the hole diameter of the inner hole 323.

在實施例中，該外端部31的最大厚度a大於該內端部32之厚度b，該外端部31之最大厚度a與該內端部32之厚度b的比值為1.05~1.5。In an embodiment, the maximum thickness a of the outer end portion 31 is greater than the thickness b of the inner end portion 32, and the ratio of the maximum thickness a of the outer end portion 31 to the thickness b of the inner end portion 32 is 1.05~1.5.

該襯套4是穿設固定在該等鏈片3的該等凸環部34與該等內穿孔323中，而將該等鏈片3之該等內端部32連結在一起，且該襯套4之兩端是突伸出該等內穿孔323，而分別外露在該等內端外側面321。The bushing 4 is inserted and fixed in the convex ring portions 34 and the inner perforations 323 of the chain pieces 3, and the inner ends 32 of the chain pieces 3 are connected together, and the lining The two ends of the sleeve 4 protrude from the inner through holes 323, and are respectively exposed on the outer side surfaces 321 of the inner ends.

該鏈軸5是可轉動地貫穿設置在該襯套4中，其兩端分別穿過另一串接單元200’的該等外穿孔313’，最後鉚接固定在該另一串接單元200’的該等鏈片3’ 的該等外端部31’。The chain shaft 5 is rotatably inserted through the bushing 4, and its two ends respectively pass through the outer perforations 313' of the other series connection unit 200', and are finally riveted and fixed to the other series connection unit 200' The outer ends 31' of the chain pieces 3'.

本新型串接單元200用以和該另一串接單元200’組接時，是將該等鏈片3之該等內端部32置於該另一串接單元200’的該等鏈片3’的該等外端部31’間，使該等內穿孔323與相併排之另外兩鏈片3’的該等外穿孔313’同軸對應，進而使該襯套4兩端分別突伸入另外兩鏈片3’的該等內環槽315’中。When the new series connection unit 200 is used for assembling with the other series connection unit 200', the inner ends 32 of the chain pieces 3 are placed on the chain pieces of the other series connection unit 200' Between the outer ends 31' of 3', the inner perforations 323 are coaxially corresponding to the outer perforations 313' of the other two side-by-side chain pieces 3', so that the two ends of the bushing 4 respectively protrude into In the inner ring grooves 315' of the other two links 3'.

然後，再將該鏈軸5穿過該襯套4，並使該鏈軸5兩端固定在該等外穿孔313’中，接著，再將外露在該等鏈片3’的該等外端部31’的該鏈軸5兩端鉚合，使該鏈軸5之兩端分別徑擴鉚固在該等外環槽314’中，即完成與該另一串接單元200’的組接。在實施時，該鏈軸5的設置方式不以鉚壓在該等外環槽314’中為限。此外，該等外端部31也可再與另一串接單元200’的該等鏈片3’的該等內端部32’併接，以供該另一串接單元200’的該鏈軸5’穿設鉚固。Then, the chain shaft 5 is passed through the bushing 4, and the two ends of the chain shaft 5 are fixed in the outer perforations 313', and then exposed on the outer ends of the chain pieces 3' The two ends of the chain shaft 5 of the portion 31' are riveted, so that the two ends of the chain shaft 5 are respectively expanded in diameter and riveted in the outer ring grooves 314' to complete the assembly with the other series connection unit 200' . In implementation, the arrangement of the chain shaft 5 is not limited to being riveted in the outer ring grooves 314'. In addition, the outer ends 31 can also be connected in parallel with the inner ends 32' of the chain pieces 3'of the other series connection unit 200' for the chain of the other series connection unit 200'. The shaft 5'is pierced and riveted.

本新型串接單元200多個串接成鏈條使用時，透過每一鏈片3之該外端部31最大厚度a大於該內端部32厚度b的結構設計，除了可提高整體結構強度與耐用性，還可以該外端部31之較厚結構來遮擋保護相層疊之另一鏈片3’的該內端部32’，而助於延長整個鏈條的使用壽命。並可進一步藉由每一外端部31的該外端外側面311的該第一弧面區317與該第二弧面區318之不同弧彎曲率的結構設計，使該外端部31與該連接部33的片體應力能分散不集中，具體來說該第二弧面區318的弧彎曲率比該第一弧面區317的弧彎曲率小，使該第二弧面區318到該彎折段330的厚度遞減程度較小，能有效增加該外端部31與該彎折段330有較佳結構強度，同樣能有效提升整個鏈條的使用壽命。When more than 200 series connection units of the present invention are connected in series to form a chain, the maximum thickness a of the outer end portion 31 of each chain piece 3 is greater than the thickness b of the inner end portion 32 through the structural design, in addition to improving the overall structural strength and durability Therefore, the thicker structure of the outer end portion 31 can also be used to shield and protect the inner end portion 32' of another chain piece 3'that is stacked, thereby helping to extend the service life of the entire chain. Furthermore, by the structural design of the first arc surface area 317 and the second arc surface area 318 of the outer end outer side surface 311 of each outer end portion 31, the outer end portion 31 and the second arc surface area 318 The sheet body stress energy of the connecting portion 33 is dispersed and not concentrated. Specifically, the arc curvature rate of the second arc surface area 318 is smaller than the arc curvature rate of the first arc surface area 317, so that the second arc surface area 318 to The thickness of the bending section 330 is reduced to a small degree, which can effectively increase the structural strength of the outer end portion 31 and the bending section 330, and can also effectively increase the service life of the entire chain.

此外，透過在每一鏈片3之該外端部31的該外端外側面311凹設該外環槽314，使對應之該鏈軸5’的端部能被鉚壓而徑擴嵌置的結構設計，除了可提高該等外端部31與該鏈軸5’之嵌合力外，還可使該鏈軸5’不突伸出該等外端部31的該等外端外側面311，維持整個鏈條之軸向側表面的平整，有助於提高運轉順暢度。另外，透過每一鏈片3之該彎折段330的弧彎結構設計，可減少應力集中，同樣有助於提高該鏈片3的使用壽命，且透過該連接部33之該彎折段330之該弧彎內緣331的弧彎曲率小於該內端部32之該弧彎端面324之弧彎曲率的設計，可避免相疊接之兩鏈片3、3’之該弧彎內緣331與該內端部32’間的摩擦，同樣有助於提高運轉順暢度。In addition, by recessing the outer ring groove 314 on the outer end surface 311 of the outer end portion 31 of each chain piece 3, the corresponding end portion of the chain shaft 5'can be riveted to be embedded in diameter. In addition to improving the fitting force of the outer end portions 31 and the chain shaft 5', the structural design of the chain shaft 5'can also prevent the chain shaft 5'from protruding from the outer end surfaces 311 of the outer end portions 31 , Maintain the smoothness of the axial side surface of the entire chain, which helps to improve the smoothness of operation. In addition, through the curved structure design of the bending section 330 of each chain piece 3, stress concentration can be reduced, which also helps to increase the service life of the chain piece 3, and through the bending section 330 of the connecting portion 33 The arc bending rate of the curved inner edge 331 is smaller than the arc bending rate of the curved end surface 324 of the inner end portion 32, which can avoid the curved inner edge 331 of the two chain pieces 3, 3'that overlap each other. The friction with the inner end 32' also helps to improve the smoothness of operation.

再者，透過在每一鏈片3之該外端內側面312凹設該內環槽315，並使該內環槽315供對應之該襯套4’端部容置的結構設計，可縮減併排設置之兩鏈片3、3’的相向側間隙，不僅使泥砂不易卡入，也維持潤滑油不易流失。並可進一步藉由在該內端部32之該內端內側面322突設該凸環部34以供該襯套4穿設的結構設計，一方面可提高的該襯套4與整個鏈片3的接觸面積，而提高該襯套4與該鏈片3的嵌合強度，另一方面也可縮短搭配使用之羅拉6長度，降低製造成本。Furthermore, by recessing the inner ring groove 315 on the inner surface 312 of the outer end of each chain piece 3, and allowing the inner ring groove 315 to accommodate the corresponding end of the bushing 4', the design can be reduced The opposing side gap of the two chain pieces 3 and 3'arranged side by side not only prevents mud and sand from being stuck in, but also keeps the lubricating oil from losing. Furthermore, the convex ring portion 34 can be projected on the inner side surface 322 of the inner end portion 32 to allow the bushing 4 to pass through. On the one hand, the bushing 4 and the entire chain can be improved. The contact area of the bushing 4 and the chain piece 3 is improved, and on the other hand, the length of the roller 6 used in combination can be shortened, and the manufacturing cost can be reduced.

參閱圖4、5，本新型串接單元200之一個第二實施例與該第一實施例雷同，僅差異處在於：每一鏈片3之該外端部31的結構設計。Referring to FIGS. 4 and 5, a second embodiment of the serial connection unit 200 of the present invention is similar to the first embodiment, except that the difference lies in the structural design of the outer end 31 of each link 3.

每一鏈片3的該外端部31還具有一個連接在該外端外側面311與該外端內側面312間的外周面316，該外端外側面311未設置該第二弧面區，該外端外側面311是自該外穿孔313等曲率地徑向往外弧彎延伸，而連接於該外周面316與該彎折段330的弧彎外緣332。藉此結構設計，同樣具有使承受應力均勻分佈，而提高使用壽命的效果。The outer end portion 31 of each link piece 3 also has an outer peripheral surface 316 connected between the outer end outer surface 311 and the outer end inner surface 312, and the outer end outer surface 311 is not provided with the second arc surface area, The outer side surface 311 of the outer end extends from the outer perforation 313 in a radially arc-curved manner, and is connected to the outer peripheral surface 316 and the arc-curved outer edge 332 of the bending section 330. The structural design also has the effect of evenly distributing the bearing stress and increasing the service life.

綜上所述，透過每一鏈片3之該外端部31之最大厚度a大於該內端部32厚度b的結構設計，以及該外端部31之該外端外側面311是呈弧面狀的結構設計，可使該鏈片3具有較佳強度，而有助於提高整個串接單元200結構強度與使用壽命。且可進一步透過該鏈片3凹設該內環槽315，使每一襯套4兩端突伸入對應之兩鏈片3’的該等內環槽315’的結構設計，縮減相併排之兩鏈片3、3’間的間隙，使該等鏈片3、3’間不易卡入泥砂，也維持潤滑油不易流失。並可藉由每一鏈片3之該凸環部34結構設計，提高鏈片3與襯套4的結合強度，以及縮短搭配使用之羅拉6的長度，以降低製造成本。另外，透過每一鏈片3之該彎折段330的弧彎結構設計，可減少應力集中，有助於提高該鏈片3的使用壽命。且透過在每一鏈片3之該外端部31的該外端外側面311凹設該外環槽314，使對應之該鏈軸5’的端部能被鉚壓而徑擴嵌置的結構設計，除了可提高該等外端部31與該鏈軸5’之嵌合力外，還可使該鏈軸5’不突伸出該等外端部31的該等外端外側面311，維持整個鏈條之軸向側表面的平整，有助於提高運轉順暢度。透過該連接部33之該彎折段330之該弧彎內緣331的弧彎曲率小於該內端部32之該弧彎端面324之弧彎曲率的設計，可避免相疊接之兩鏈片3、3’之該弧彎內緣331與該內端部32’間的摩擦，同樣有助於提高運轉順暢度。因此，本新型串接單元200確實是一種相當創新實用的創作，而確實能達成本新型的目的。In summary, through the structural design that the maximum thickness a of the outer end portion 31 of each chain piece 3 is greater than the thickness b of the inner end portion 32, and the outer end surface 311 of the outer end portion 31 is curved The shape of the structure design can make the chain piece 3 have better strength, and help to improve the structural strength and service life of the entire series connection unit 200. Furthermore, the inner ring groove 315 can be recessed through the chain piece 3, so that the two ends of each bush 4 protrude into the inner ring grooves 315' of the corresponding two chain pieces 3', which reduces the structure design of the inner ring grooves 315'. The gap between the two chain pieces 3 and 3'prevents mud and sand from being stuck between the chain pieces 3 and 3', and also keeps the lubricating oil from losing. The structure design of the convex ring portion 34 of each chain piece 3 can improve the bonding strength of the chain piece 3 and the bushing 4, and shorten the length of the roller 6 used in combination, so as to reduce the manufacturing cost. In addition, through the curved structure design of the bending section 330 of each chain piece 3, stress concentration can be reduced and the service life of the chain piece 3 can be improved. And by recessing the outer ring groove 314 on the outer end surface 311 of the outer end portion 31 of each chain piece 3, the end portion of the corresponding chain shaft 5'can be riveted and the diameter is expanded. The structural design can not only increase the fitting force between the outer end portions 31 and the chain shaft 5', but also prevent the chain shaft 5'from protruding from the outer end surfaces 311 of the outer end portions 31. Maintaining the smoothness of the axial side surface of the entire chain helps to improve the smoothness of operation. The arc bending rate of the curved inner edge 331 of the bending section 330 of the connecting portion 33 is less than the arc bending rate of the curved end surface 324 of the inner end portion 32, which can avoid the overlapping of two chain pieces 3. The friction between the curved inner edge 331 and the inner end 32' of 3'also helps to improve the running smoothness. Therefore, the series connection unit 200 of the present invention is indeed a rather innovative and practical creation, and it can indeed achieve the purpose of a new type.

惟以上所述者，僅為本新型的實施例而已，當不能以此限定本新型實施的範圍，凡是依本新型申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾，皆仍屬本新型專利涵蓋的範圍內。However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

200、200’:串接單元 3、3’:鏈片 31、31’:外端部 311:外端外側面 312、312’:外端內側面 313、313’:外穿孔 314、314’:外環槽 315、315’:內環槽 316:外周面 317:第一弧面區 318:第二弧面區 32、32’:內端部 321:內端外側面 322:內端內側面 323:內穿孔 324:弧彎端面 33:連接部 330:彎折段 331:弧彎內緣 332:弧彎外緣 34:凸環部 4、4’:襯套 5、5’:鏈軸 6:羅拉 200, 200’: Series connection unit 3. 3’: chain piece 31, 31’: Outer end 311: outer side of outer end 312, 312’: the inner side of the outer end 313, 313’: External perforation 314, 314’: Outer ring groove 315, 315’: Inner ring groove 316: Outer peripheral surface 317: The first arc area 318: The second arc area 32, 32’: inner end 321: inner and outer side 322: inner side of inner end 323: Internal perforation 324: Curved end face 33: Connection part 330: bending section 331: Curved inner edge 332: Curved Outer Edge 34: convex ring 4. 4’: Bush 5, 5’: chain shaft 6: Rolla

本新型的其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一個立體圖，說明本新型用於鏈條之串接單元的一個第一實施例多個依序串接的情況；圖2是一個立體分解圖，說明該第一實施例結構；圖3是一個俯剖視圖，說明該第一實施例的多個依序串接時的結構；圖4是一個立體圖，說明本新型用於鏈條之串接單元的一個第二實施例的一個鏈片的結構；及圖5是一個俯剖視圖，說明該第二實施例多個依序串接時的結構。 The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a perspective view illustrating a first embodiment of a series connection unit used in a chain of the present invention, where multiple series are connected in sequence; Figure 2 is a perspective exploded view illustrating the structure of the first embodiment; Fig. 3 is a top sectional view illustrating the structure of the first embodiment when multiple serial connections are made in sequence; Figure 4 is a perspective view illustrating the structure of a chain piece of a second embodiment of the series connection unit for a chain of the present invention; and Fig. 5 is a top cross-sectional view illustrating the structure of the second embodiment when multiple serial connections are made in sequence.

200、200’:串接單元 200, 200’: Series connection unit

3、3’:鏈片 3. 3’: chain piece

31、31’:外端部 31, 31’: Outer end

311:外端外側面 311: outer side of outer end

312、312’:外端內側面 312, 312’: the inner side of the outer end

313、313’:外穿孔 313, 313’: External perforation

314、314’:外環槽 314, 314’: Outer ring groove

315、315’:內環槽 315, 315’: Inner ring groove

317:第一弧面區 317: The first arc area

318:第二弧面區 318: The second arc area

32、32’:內端部 32, 32’: inner end

321:內端外側面 321: inner and outer side

322:內端內側面 322: inner side of inner end

323:內穿孔 323: Internal perforation

324:弧彎端面 324: Curved end face

33:連接部 33: Connection part

330:彎折段 330: bending section

331:弧彎內緣 331: Curved inner edge

332:弧彎外緣 332: Curved Outer Edge

34:凸環部 34: convex ring

4:襯套 4: bushing

5、5’:鏈軸 5, 5’: chain shaft

6:羅拉 6: Rolla

Claims

一種鏈片，包含左右間隔的一個內端部與一個外端部，及一個連接在該內端部與該外端部間的連接部，其中：該外端部具有一個外端外側面，及一個相反於該外端外側面的外端內側面，並具有一個貫穿該外端外側面與該外端內側面的外穿孔，該外端外側面是自該外穿孔徑向往外朝該外端內側面弧彎延伸成弧面狀，且該外端部的最大厚度a大於該內端部的厚度b；該連接部具有一個使該內端部與該外端部內外錯位的彎折段，該彎折段環繞該外穿孔弧彎延伸。 A chain piece, comprising an inner end portion and an outer end portion spaced left and right, and a connecting portion connected between the inner end portion and the outer end portion, wherein: The outer end has an outer outer side surface and an outer inner side surface opposite to the outer side surface of the outer end, and has an outer perforation penetrating the outer side surface of the outer end and the inner side surface of the outer end. The outer side surface of the outer end It extends from the outer perforation radially outward toward the inner surface of the outer end into a curved surface, and the maximum thickness a of the outer end portion is greater than the thickness b of the inner end portion; the connecting portion has a shape such that the inner end portion A bending section that is misaligned with the outer end portion inside and outside, the bending section extends around the outer perforation arc.

如請求項1所述的鏈片，其中，該外端外側面是自該外穿孔徑向往外弧彎延伸而連接於該外端內側面，該外端部的厚度由該外穿孔周緣漸往該外端內側面遞減。The chain piece according to claim 1, wherein the outer surface of the outer end is curved outwardly from the outer perforation and is connected to the inner surface of the outer end, and the thickness of the outer end is gradually increased from the periphery of the outer perforation The inner side of the outer end decreases gradually.

如請求項2所述的鏈片，其中，該外端外側面具有一個自該外穿孔周緣徑向往外弧彎延伸並連接該外端內側面之第一弧面區，及一個自該外穿孔周緣徑向往外弧彎延伸並連接該彎折段之弧彎外緣的第二弧面區，該第一弧面區與該第二弧面區之弧彎曲率不同。The chain piece according to claim 2, wherein the outer surface of the outer end has a first arcuate surface area extending from the periphery of the outer perforation radially outwardly and connected to the inner surface of the outer end, and a first arcuate surface area from the outer perforation The peripheral edge extends radially outwardly and is connected to the second arc surface area of the arc outer edge of the bending section, and the arc curvature rate of the first arc surface area and the second arc surface area are different.

如請求項3所述的鏈片，其中，該第二弧面區之弧彎曲率小於該第一弧面區之弧彎曲率。The link piece according to claim 3, wherein the arc curvature rate of the second arc surface area is less than the arc curvature rate of the first arc surface area.

如請求項1所述的鏈片，其中，該外端部還具有一個連接於該外端外側面與該外端內側面間的外周面，該外端外側面是自該外穿孔徑向往外弧彎延伸而連接於該外周面，該外端部的厚度由該外穿孔周緣漸往該外周面遞減。The chain piece according to claim 1, wherein the outer end portion further has an outer peripheral surface connected between the outer surface of the outer end and the inner surface of the outer end, and the outer surface of the outer end is radially outward from the outer perforation The arc extends to be connected to the outer peripheral surface, and the thickness of the outer end portion gradually decreases from the peripheral edge of the outer perforation to the outer peripheral surface.

如請求項1所述的鏈片，其中，該彎折段具有一個緊鄰該外端內側面且環繞該外穿孔弧彎延伸的弧彎內緣，及一個連接該外端外側面且環繞該外穿孔弧彎延伸的弧彎外緣。The chain piece according to claim 1, wherein the bent section has an arc inner edge adjacent to the inner surface of the outer end and extending around the outer perforation arc, and a curved inner edge connected to the outer surface of the outer end and surrounding the outer The perforated arc extends the outer edge of the arc.

如請求項1所述的鏈片，其中，該外端部還具有一個凹設在該外端外側面，且連通該外穿孔的外環槽。The chain piece according to claim 1, wherein the outer end portion further has an outer ring groove recessed on the outer surface of the outer end and communicating with the outer perforation.

如請求項1所述的鏈片，其中，該外端部還具有一個凹設在該外端內側面，且連通該外穿孔的內環槽。The chain piece according to claim 1, wherein the outer end portion further has an inner ring groove recessed on the inner surface of the outer end and communicating with the outer perforation.

如請求項1所述的鏈片，其中，該內端部具有一個內端外側面，及一個相反於該內端外側面的內端內側面，並具有一個貫穿該內端外側面與該內端內側面的內穿孔，該鏈片還包含一個突設於該內端內側面且與該內穿孔連通的凸環部。The chain piece according to claim 1, wherein the inner end portion has an inner end outer side surface, and an inner end inner side surface opposite to the inner end outer side surface, and has a penetrating through the inner end outer side surface and the inner end outer side surface. The inner perforation on the inner surface of the end, and the chain piece further includes a convex ring part protruding from the inner surface of the inner end and communicating with the inner perforation.

如請求項9所述的鏈片，其中，該彎折段具有一個緊鄰該外端內側面且環繞該外穿孔弧彎延伸的弧彎內緣，及一個連接該外端外側面且環繞該外穿孔弧彎延伸的弧彎外緣，該內端部還具有一個連接在該內端外側面與該內端內側面間的弧彎端面，該弧彎內緣的弧彎曲率小於該弧彎端面的弧彎曲率。The chain piece according to claim 9, wherein the bent section has an arc inner edge adjacent to the inner surface of the outer end and extending around the outer perforation arc, and a curved inner edge connected to the outer surface of the outer end and surrounding the outer The arc-curved outer edge extended by the perforated arc, the inner end portion also has an arc-curved end surface connected between the outer surface of the inner end and the inner surface of the inner end, and the arc-curved rate of the arc-curved inner edge is smaller than that of the arc-curved end surface The arc bending rate.

如請求項1所述的鏈片，其中，該外端部的最大厚度a與該內端部的厚度b的比值為1.05~1.5。The chain piece according to claim 1, wherein the ratio of the maximum thickness a of the outer end portion to the thickness b of the inner end portion is 1.05 to 1.5.

一種用於鏈條的串接單元，適用於多個依序串接，該串接單元包含：二間隔相對的鏈片，每一該鏈片具有左右間隔的一個內端部與一個外端部，及一個連接在該內端部與該外端部間的連接部，該連接部具有一個使該內端部與該外端部內外錯位的彎折段，該外端部具有一個外端外側面，及一個相反於該外端外側面的外端內側面，且具有一個貫穿該外端外側面與該外端內側面的外穿孔，該外端外側面自該外穿孔徑向往該外端內側面弧彎延伸成弧面狀，且該外端部的最大厚度a大於該內端部的厚度b，該內端部具有一個內端外側面，及一個相反於該內端外側面的內端內側面，並具有一個貫穿該內端外側面與該內端內側面的內穿孔，每一外端內側面是用以面向相串接之另一串接單元之對應鏈片的該內端外側面，該彎折段繞該外穿孔弧彎延伸；一個襯套，固定於該等鏈片的該等內穿孔中；及一個鏈軸，穿設在該襯套中，且該鏈軸的兩端分別穿過相串接之另一串接單元的該等鏈片的該等外穿孔，並固定於該另一串接單元的該等外端部。 A series connection unit for chain, suitable for multiple serial connection in sequence, the series connection unit includes: Two oppositely spaced chain pieces, each of which has an inner end portion and an outer end portion spaced left and right, and a connecting portion connected between the inner end portion and the outer end portion, and the connecting portion has a The inner end portion and the outer end portion are internally and externally displaced, the outer end portion has an outer end outer surface, and an outer end inner surface opposite to the outer end outer surface, and has an outer end that penetrates the outer end surface. The outer perforation of the side surface and the inner surface of the outer end, the outer surface of the outer end extends from the outer perforation radially to the inner surface of the outer end into a curved surface, and the maximum thickness a of the outer end is greater than that of the inner end Thickness b, the inner end has an inner outer surface, an inner inner surface opposite to the inner outer surface, and an inner perforation penetrating through the inner outer surface and the inner inner surface of the inner end, each The inner surface of the outer end is used to face the outer surface of the inner end of the corresponding chain piece of the other series connection unit connected in series, and the bending section extends around the outer perforation arc; A bush fixed in the inner perforations of the chains; and A chain shaft passes through the bushing, and both ends of the chain shaft respectively pass through the outer perforations of the chain pieces of the other series connection unit connected in series, and are fixed to the other series connection The outer ends of the unit.

如請求項12所述的鏈條的串接單元，其中，每一外端部還具有一個凹設在該外端外側面，且連通該外穿孔的外環槽，該鏈軸兩端不突伸出對應之該等外端部之該等外端外側面地分別鉚固在該等外環槽內。The chain connection unit according to claim 12, wherein each outer end portion further has an outer ring groove recessed on the outer surface of the outer end and communicating with the outer perforation, and the two ends of the chain shaft do not protrude The outer side surfaces of the outer ends corresponding to the outer end portions are respectively riveted and fixed in the outer ring grooves.

如請求項12所述的鏈條的串接單元，其中，每一外端部還具有一個凹設在該外端內側面，且連通該外穿孔的內環槽，該襯套兩端分別容置在對應之另一串接單元的該等外端部之該等內環槽內。The chain connection unit according to claim 12, wherein each outer end portion further has an inner ring groove recessed on the inner surface of the outer end and communicating with the outer perforation, and both ends of the bushing are respectively accommodated In the inner ring grooves of the outer ends of the corresponding other tandem unit.