1225911 玖、發明說明： 【發明所屬之技術領域】 本發明是關於一種鏈條，特 齒盤上的卡齒完成卡合動作，並心:：：以靠抵方式和 鏈條。 /、有軟低傳動噪音的靜音 【先前技術】 鏈條是一種使用領域廣泛 致如公告編號第5侧號、第二“牛，組裝的形式大 ίο 15 案所示者，係由多數串接單元=2號、… 鏈條並可跨設在兩個相間成封閉的環圈狀，上述 抽入士人,^ 盤間’藉由齒盤上的卡齒 伸入卡3在鏈條的兩相鄰 的鍵片間，來達到傳輸動力的目 二：用兩兩間隔鏈片，來界定出-個個供卡齒卡合 之工間的鏈條雖然使用多年 , 仁由於此種型態的鏈條在使 用：U的卡齒必需伸入兩兩鏈片間，因 Γ 口中：該鍵條之鍵片的内側面會和卡齒表面靠抵、摩 ;較=此類型之鏈條在傳動時的噪音較大，整體強度 為了 IV低鏈條傳動之噪音及增強強度，在已知的技藝 中有一種如美國第6加屬Β1、6 595,882 β2 6 575,861 7美國發明專利案所示之靜音鏈條⑽entehain)，此種 2鏈條的組裝型態有报多種，但其共同的特色是在鍵片 抿ΓΓ齒盤之外環壁面上形成可供齒盤之卡齒靠抵的靠 。此種靜音鍵條在傳動時由於配合之齒盤上的卡齒 不必伸入兩間隔之鍵片間，因此’此種傳動方式可以有效 20 1225911 5 10 15 降低鏈條與卡齒間的摩擦及噪音，故被業者稱為「靜音鏈 條」。惟由於習知靜音鏈條的零件皆係由例如：鋼等金屬 材料製成，而供該靜音鏈條靠抵的齒盤也都由金屬製造， 因此，雖然該靜音鏈條是以靠抵的方式靠設在齒盤之卡齒 上，但鏈條和齒盤卡合的瞬間，係以金屬鏈片直接和金屬 齒盤相抵靠，而會產生較大的傳動噪音，此乃習知靜音鍵 條设计上待改進之課題。 【發明内容】 本發明之目的係在提供_種可降低傳動噪音之靜音 鏈條。 本發明之靜音鏈條係可跨在一具有數卡齒之齒盤 上，並由多數串接單元串接而成，每一串接單元皆包含： 兩内外間隔的外鏈片、—介於該等外鏈片間的内片組件， 以及兩支用以串接上述外H riti LJ , 抑一 述卜鏈片、内片組件，以及相鄰串接 單70之内片、、且件的鏈軸。其中該内片組件包括數金屬内 片，每-金屬内片皆具有兩間隔的内端部，以及一介於該 等内立而^間並界疋出一靠抵缺槽的靠抵面，上述靠抵缺槽 朝向該齒盤。 本發明的特徵在於：該内片組件更包括至少-片由非 金屬材料製成的減音内片，上述減音内片具有兩間隔的減 音端部，以及-介於該等減音端部間並界定出一減音抵槽 的減曰抵面’其中s亥減音抵面較靠抵面往該齒盤的 出。 田4硬曰鏈條之串接單元即將跨設在齒盤之卡齒上 20 1225911 時，由非金屬材料製成且減音抵面較為突出的減音内“ 以口卡齒相靠抵，藉此防止金屬W直接和金屬製成之齿 盤相抵靠，以進一步地降低該靜音鏈條之傳動噪音。 【實施方式】 / 有關本發明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較佳實施例的詳細說明中 ρ 的明白。 ⑺疋 參閱圖卜2’本發明靜音鏈條之較佳實施例係可在一 齒盤單元i上傳動，所述齒盤單元i包含兩間隔設置之齒 盤1卜在每-齒盤u上設置多數等角度的卡酱⑴。而 本發明=靜音鏈條係由多數串接單元2、2，奉接而成，每 一串接单7G 2皆包含：兩内外間隔之外鏈片21、一介於該 等外鍵片21間的内片組件3,以及兩支左右間隔且用來^ 接上述外鍵片21、内片組件3，以及相鄰争接單元2,之内 片組件3的鏈轴22。 、/、中4等外鏈片21皆為例如··鋼材等金屬材料沖切 而成，每—外鏈片21皆包括兩左右間隔之外端部2U、_ =妾在该等外端部211間並鄰近卡齒iu的外銜連部 以及介於該等外端部211間且開口遠離卡齒u 的缺口部213，甘tb — , 其中母一外端部211上皆開設一供鏈軸22 穿過的外軸孔214。 配合圖3,而該内片組件3包括數片左右錯開 介於該等外鏈片 鏈片21間的金屬内片31，以及至少一片穿插 广…屬内片31間的減音内"2,在本實施例該金屬 1225911 内片31的數量是五片，而減音内片32的數量是兩片，且 在金屬内片31及減音内片32的配置上，每一片減音内片 32皆和該等金屬内片31中的至少一片内外重疊，例如圖 2左側之減音内片32與三片金屬内片31重疊，而右側之 減音内片32係與兩片金屬内片31重疊。上述金屬内片31 白由鋼材等金屬材料製成，每一金屬内片31皆具有兩左 右間隔之内端部311、一遠離齒盤U之内銜連部>312,= 及一界定出一靠抵缺槽313的靠抵面314，在每一内端部 311上各別形成一供該鏈軸22穿過的内軸孔315。 而該等減音内片32的形狀與金屬内片31相同，但略 大於该金屬内片31，上述減音内片32可選自··聚氨基甲 酸酯（polyurethane gum，俗稱優力膠）、矽膠（siHc〇n gum)、丁腈橡膠⑺丨化丨^ gum，丁二烯_丙烯腈共聚物）以 及布質電木等等，就本發明的目的而言，該減音内片犯 亦可以採用其他非金屬且具有耐磨性能之材料來製造，實 也上並不以鈾述舉例為限。本實施例之減音内片3 2是選 用機械強度、耐油性及耐磨性佳之聚氨基甲酸酯，每一減 音内片32皆具有：兩左右間隔之減音端部321、一銜接在 該等減音端部321間且遠離齒盤U之減音銜連部322，以 及一界定出一減音抵槽323的減音抵面324，在每一減音 端部321上各別形成一供鏈軸22穿過的減音軸孔325，其 中該減音抵面324較金屬内片31之靠抵面314突出。 又本實施例之内片31、32是左右錯開設置，亦即， 本貫施例之各内片3丨、32的其中一端部311、321是軸樞 1225911 在同-鏈軸22上，但其中有四片相間隔的内片3 左側突出’其餘的三片内片31、32則是往右突出 < 而本發明之鏈軸22係由金屬材料製成’其形式除了 可為貫施例所揭露之圓柱桿狀外，亦可為例如中 他任何可串接該等外鏈片21及内片組件3的設計^、 ίο 15 2免金屬内片31直接與金屬卡齒⑴相靠抵產生摩擦 本曰。料上本發明並不以實施例減音内；1 32的排列方 式為限gp，、要卡齒⑴能在碰觸金屬内片^之前，先 與減音内片32接觸緩衝即可達到減少傳動噪音的目的。 —一本發明該項設計除了可進—步降低傳動噪音外，由於 每-片具有減音效果之減音内片32皆與至少一片金屬内 =31重疊’ 此’本發明該項設計可轉持靜音鍵條預 期之拉力。依中請人測試’本發明該較佳實施例之靜音鍵 翏閱圖1、3、4’本發明之靜音鏈條在組裝後且尚未 與卡齒111相抵靠時，該等減音内片32的減音抵面324 較金屬内“1的靠抵面3U突出，亦即，往該卡齿iu 的方向突出。當靜音鏈條i在運轉且其中—串接單元 將往下靠設在卡齒1U上時，由於每—個串接單元2上皆 具有至少一片減音内片32’且該減音内片32的減音抵面 324較金屬内片31的靠抵面314突出，因此，在靜音鍵條 2卡入的瞬間，該卡齒⑴會先和軟質之減音抵面324靠 抵’然购該減音…2變形上縮後才會靠在金屬内 片田3i的靠抵面314上，亦即，靠抵後該卡齒⑴係伸入 重疊之内片3卜32的靠抵缺槽313及減音抵槽卿内， 20 5 10 15 1225911 條可以承受850〜麵g荷重的拉力，故本發明該項設計仍 可達到傳動時需要的結構強度。 由以上說明可知，本發明以數片金屬内片3]及至少 一㈣音W 32來組立成該内片組件3的設計，不僅未 見於§知靜音鏈條，上述設計更可在靜音鏈條與齒盤11 相卡合的瞬間，讓由非金屬材料製成之減音内片32先和 卡回⑴她靠，而具有降㈣靜音鏈條傳㈣音的功效。 、淮X上所述者，僅為本發明之較佳實施例而已，當不 =此限疋本發明實施之範圍，即大凡依本發明申請專利 Γ發明說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 視巴圖」、疋本發明靜音鍵條之—較佳實施例的使用狀態側 = 亥靜音鏈條與—齒盤單元間的對應關係； 顯示該靜列之一未完整的立體分解圖，單獨 怿之—串接單元的組成，· 圖3是該較佳實施例 該靜音鍵條尚未和齒般單一纟兀整的組合側視圖，圖中 圖4—類似圖：：之一卡齒卡合；及 條已和齒盤單元之卡整組合側視圖，圖中該靜音鏈 20 1225911 【圖式之主要元件代表符號說明】 1 齒盤單元 31 金屬内片 11 齒盤 311 内端部 111 卡齒 312 内銜連部 2 串接單元 313 靠抵缺槽 2， 串接單元 314 罪抵面 21 外鏈片 315 内軸孑L 211 外端部 32 減音内片 212 外銜連部 321 減音端部 213 缺口部 322 減音衡連部 214 外轴孔 323 減音抵槽 22 鏈軸 324 減音抵面 3 内片組件 325 減音軸孔 101225911 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a chain, the teeth on the special toothed disc complete the engagement action, and :: and the chain is abutted. /, Mute with soft low transmission noise [prior art] The chain is a widely used field such as the announcement No. 5 side number, the second "bull, the form of assembly is large, as shown in the 15 case, which is connected by most units = No. 2, ... The chain can be placed between two phases to form a closed loop. The above-mentioned draw-in scholars, ^ discs' are inserted into the chain by the teeth on the toothed discs. 3 The two adjacent ones of the chain To achieve the purpose of transmitting power between the keypads: use two spaced chain links to define a chain of workshops for clamping teeth. Although they have been used for many years, because of this type of chain: The clamping teeth of U must extend between two or two chain pieces, because in the mouth of Γ: the inner side of the key piece of the key bar will abut and rub against the surface of the clamping tooth; compared with this type of chain, the noise is greater during transmission, The overall strength is for the noise and enhanced strength of IV low-chain transmission. Among the known technologies, there is a silent chain (entehain) as shown in the United States Patent No. 6 plus B1, 6 595,882 β2 6 575,861 7 US invention patent case). There are many types of assembly of the chain, but their common feature is in the key piece 抿ΓΓ The outer ring wall surface of the toothed disc is formed by which the teeth of the toothed disc can be abutted. This type of silent key bar does not need to extend between the two key plates during transmission because the teeth of the mating toothed disc do not need to extend between the two spaced keys. This transmission method can effectively reduce the friction and noise between the chain and the teeth. Therefore, it is called “silent chain” by the industry. However, since the parts of the conventional silent chain are made of metal materials such as steel, and the toothed discs against which the silent chain rests are also made of metal, although the silent chain is rested in a leaning manner On the teeth of the chainring, but when the chain and the chainring are engaged, the metal chain is directly abutted against the metal chainring, which will generate a large transmission noise. This is the design of the conventional silent key bar. Improvement issues. [Summary of the Invention] The purpose of the present invention is to provide a quiet chain which can reduce transmission noise. The silent chain of the present invention can be straddled on a toothed disc with several teeth and formed by cascading a plurality of serially connected units. Each serially connected unit includes: two outer chain pieces spaced inside and outside, between the And other inner chain components between the outer chain pieces, and two chains for connecting the above outer Hriti LJ, and the chain pieces, the inner piece components, and the inner pieces and adjacent pieces of the adjacent series 70 axis. The inner sheet component includes a plurality of metal inner sheets, each of the metal inner sheets has two spaced inner ends, and an abutting surface that is abutted by the abutting groove between the inner and outer spaces. The abutment groove faces the toothed disc. The invention is characterized in that the inner sheet assembly further comprises at least-a sound-reducing inner sheet made of a non-metallic material, the sound-reducing inner sheet having two spaced-apart sound-reducing ends, and-between the sound-reducing ends Between the departments, a sound-reduction contact surface of the sound-reduction contact groove is defined, wherein the sound-reduction contact surface is closer to the tooth surface than the contact surface. Tian 4 Hard said that when the chain connection unit was about to be set on the tooth of the chainring 20 1225911, it was made of non-metallic material and the noise reduction surface was prominent. This prevents the metal W from directly abutting the toothed plate made of metal, so as to further reduce the transmission noise of the silent chain. [Embodiment] / The foregoing and other technical contents, features, and effects of the present invention are described below with reference to the drawings Ρ in the detailed description of the preferred embodiment of the formula. ⑺ 疋 Refer to Figure 2 'The preferred embodiment of the silent chain of the present invention can be driven on a toothed disc unit i, which includes two gaps. The set sprocket 1 is provided with a plurality of equal-angle card sauces on each sprocket u. And the present invention = the silent chain is made up of a plurality of serially connected units 2, 2, each connected 7G 2 Both include: two inner and outer spaced outer chain pieces 21, an inner piece component 3 interposed between the foreign key pieces 21, and two left and right spaced and used to ^ connect the above-mentioned outer key piece 21, inner piece component 3, and phase Adjacent contention unit 2, chain shaft 22 of inner sheet component 3. 、 / 、 中 4 等外The pieces 21 are punched out of metal materials such as steel. Each of the outer link pieces 21 includes two outer ends 2U, _ = 妾 between these outer ends 211 and adjacent to the teeth iu. The outer connecting portion and the notch portion 213, tb — which is located between the outer end portions 211 and is open away from the clamping tooth u, wherein an outer shaft hole on the female outer end portion 211 is provided for the chain shaft 22 to pass through. 214. In conjunction with FIG. 3, the inner sheet assembly 3 includes a plurality of metal inner sheets 31 staggered from left to right between the outer links 21, and at least one interspersed wide ... belongs to the sound-reducing interior between the inner sheets 31 " 2. In this embodiment, the number of the metal 1225911 inner sheet 31 is five, and the number of the sound reduction inner sheet 32 is two, and in the configuration of the metal inner sheet 31 and the sound reduction inner sheet 32, each sheet is reduced. The inner sound piece 32 overlaps at least one of the metal inner pieces 31 inside and outside, for example, the sound reduction inner piece 32 on the left side of FIG. 2 overlaps with three metal inner pieces 31, and the right sound reduction inner piece 32 is two pieces. The metal inner sheet 31 overlaps. The above-mentioned metal inner sheet 31 is made of a metal material such as steel, and each metal inner sheet 31 has two inner end portions 311, The inner connecting portion away from the toothed disc U > 312, = and an abutting surface 314 defining an abutting groove 313, and each of the inner end portions 311 is formed with a link for the chain shaft 22 to pass through. Inner shaft hole 315. The shape of the sound-reducing inner sheet 32 is the same as the metal inner sheet 31, but is slightly larger than the metal inner sheet 31. The sound-reducing inner sheet 32 may be selected from the group of polyurethane gum , Commonly known as urethane rubber), silicone rubber (siHc0n gum), nitrile rubber (butadiene_acrylonitrile copolymer) and cloth bakelite, etc., for the purpose of the present invention, The sound-reducing inner film criminal can also be made of other non-metallic and wear-resistant materials, but it is not limited to the examples of uranium. The sound-reducing inner sheet 32 of this embodiment is made of polyurethane with good mechanical strength, oil resistance and abrasion resistance. Each sound-reducing inner sheet 32 has two sound-reducing end portions 321 spaced from one side to the other, and one connection. Between the sound reduction end portions 321 and the sound reduction connection portion 322 away from the sprocket U, and a sound reduction abutment surface 324 defining a sound reduction abutment groove 323, each sound reduction end portion 321 is individually A sound reduction shaft hole 325 is formed for the chain shaft 22 to pass through, wherein the sound reduction abutment surface 324 protrudes from the abutment surface 314 of the metal inner sheet 31. In addition, the inner pieces 31 and 32 of this embodiment are staggered from left to right, that is, one end portions 311 and 321 of each of the inner pieces 3 丨 and 32 in this embodiment are pivots 1225911 on the same-chain shaft 22, but Among them, four spaced inner plates 3 protrude to the left. The remaining three inner plates 31 and 32 protrude to the right. ≪ The chain shaft 22 of the present invention is made of a metal material. The cylindrical rod shape disclosed in the example can also be, for example, any other design that can be connected to the outer chain piece 21 and the inner piece component 3 in series. ^ 15 15 Metal-free inner piece 31 directly leans against the metal clip Anti-friction is said. It is expected that the present invention does not use the sound reduction in the embodiment; the arrangement of 1 32 is limited to gp. If the teeth can be touched with the metal inner sheet ^, the buffer can be reduced by contacting the sound reduction inner sheet 32 first. Purpose of transmission noise. -In addition to the design of the present invention, in addition to further reducing transmission noise, since each of the sound-reducing inner pieces 32 having a sound-reducing effect overlaps with at least one piece of metal = 31, the design of the present invention can be transferred. Hold the expected pull of the mute keypad. Please ask someone to test the mute key of the preferred embodiment of the present invention (see Figs. 1, 3, and 4). After the mute chain of the present invention is assembled and has not yet abutted against the tooth 111, these sound-reducing inner pieces 32 The noise reduction abutment surface 324 is more prominent than the abutment surface 3U of the metal "1", that is, it protrudes in the direction of the card tooth iu. When the mute chain i is running and the-series unit will be placed next to the card tooth At 1U, since each serial connection unit 2 has at least one sound-reducing inner sheet 32 ′, and the sound-reducing abutment surface 324 of the sound-reducing inner sheet 32 protrudes from the abutting surface 314 of the metal inner sheet 31, At the moment when the mute key bar 2 is clicked in, the card teeth will first come into contact with the soft sound reduction abutment surface 324, and then purchase the sound reduction ... 2 deformation and shrinkage will only rest on the abutment surface of the metal inner Katata 3i. On 314, that is, after the contact, the card teeth are extended into the overlapping inner sheet 3 and 32, and the contact gap 313 and the sound reduction reach the channel, 20 5 10 15 1225911 can bear the load of 850 ~ face g Therefore, the design of the present invention can still achieve the structural strength required for transmission. As can be seen from the above description, the present invention uses several metal inner plates 3] and at least one ㈣ 音 W 32 is used to form the design of the inner plate component 3. Not only is it not seen in § Known silent chain, the above design can also make the sound reduction made of non-metallic materials at the moment when the silent chain is engaged with the toothed disc 11 The inner sheet 32 first relies on the card to return to her, and has the effect of reducing the noise of the mute chain. The above mentioned is only a preferred embodiment of the present invention. When not = this limit, the present invention The scope of implementation, that is, any simple equivalent changes and modifications made in accordance with the contents of the present invention application patent Γ invention specification, should still fall within the scope of the invention patent. [Simplified illustration of the drawing] Invented mute key bar-the use state of the preferred embodiment side = the corresponding relationship between the mute chain and the chainring unit; showing an incomplete three-dimensional exploded view of one of the static columns, alone-the composition of the series unit Fig. 3 is a side view of the combination of the silent key bar and the tooth-shaped unitary unit in the preferred embodiment. Fig. 4-similar view: one of the teeth is engaged; and the bar has been connected to the disc unit. Side view of the card assembly combination, the mute chain 20 12 in the picture 25911 [Description of the main components of the diagram] 1 Sprocket unit 31 Metal inner plate 11 Sprocket 311 Inner end 111 Sprocket 312 Inner connecting portion 2 Series connection unit 313 Abutment slot 2, Series connection unit 314 Crime Abutment surface 21 Outer link 315 Inner shaft 孑 L 211 Outer end 32 Sound reduction inner plate 212 Outer joint portion 321 Reduction end portion 213 Notch portion 322 Reduction scale connection portion 214 Outer shaft hole 323 Reduction slot 22 Chain Shaft 324 sound reduction abutment surface 3 inner plate assembly 325 sound reduction shaft hole 10