201033503 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種v型皮帶式無段變速機。 【先前技術】 習知’例如專利文獻1(圖2〜圖4)所示，已有包括如下構 件之V型皮帶式無段變速機：支持於作為第1帶輪軸之主 軸（11)之驅動帶輪(47);支持於作為第2帶輪軸之副軸(5〇) 之從動帶輪(52)，架設於該等驅動帶輪(47)與從動帶輪(52) 之間的V型皮帶(55);及藉由使驅動帶輪(47)之可動帶輪(可 動半體49)沿帶輪軸（11)之可動帶輪(49)之支持部朝軸方向 滑動而變更帶輪(47)之槽寬的槽寬可變機構。 [先前技術文獻] [專利文獻] [專利文獻1]曰本專利特開2006-153057號公報 【發明内容】 (發明所欲解決之問題） 於上述習知之V型皮帶式無段變速機中，如專利文獻i 之圖3、圖4所示，帶輪軸（11)與可動帶輪(49)之間的扭矩， 係透過可動帶輪(49)之轂部（49B)内周面與帶輪軸（11)之可 動帶輪(49)之支持部外周面之間的栓槽結合而傳達。 即’扭矩係於可動帶輪轂部之内面側傳達，因而存在作用 於扭矩傳達面之每單位面積之力量（該力量於本案說明書等 099100069 4 201033503 中稱作面壓）變大之問題。 本發明之目的在於解決上述問題，而提 .=:Γ 輪之 (解決問題之手段）201033503 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a v-belt type stepless speed changer. [Prior Art] As shown in Patent Document 1 (Fig. 2 to Fig. 4), there is a V-belt type stepless speed changer including the following members: support for driving the spindle (11) as the first pulley shaft a pulley (47); a driven pulley (52) supported as a secondary shaft (5〇) of the second pulley shaft, and is disposed between the driving pulley (47) and the driven pulley (52) V-belt (55); and changing the belt by sliding the movable pulley (movable half 49) of the drive pulley (47) along the support portion of the movable pulley (49) of the pulley shaft (11) in the axial direction The groove width variable mechanism of the groove width of the wheel (47). [Prior Art Document] [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2006-153057 (Draft of the Invention) In the above-described V-belt type stepless speed change machine, As shown in Figs. 3 and 4 of Patent Document i, the torque between the pulley shaft (11) and the movable pulley (49) is transmitted through the inner circumferential surface of the hub portion (49B) of the movable pulley (49) and the pulley shaft. (11) The pin grooves of the outer peripheral surface of the support portion of the movable pulley (49) are combined and transmitted. That is, the torque is transmitted to the inner surface side of the movable belt hub portion, so that there is a problem that the force per unit area of the torque transmission surface (this force is called the surface pressure in the present specification, such as 099100069 4 201033503) becomes large. The object of the present invention is to solve the above problems, and to mention: =: 轮 wheel (the means to solve the problem)
G 支述目的，本發明之V型皮帶式無段變速機包括: 、站 帶輪軸之主軸的驅動帶輪；支持於作為第2 的從動帶輪；架設於該等驅動帶輪與從動帶輪 之間的V型皮帶；及藉由使上述驅動帶輪及/或從動帶輪之 Γ帶輪沿帶輪軸之可動帶輪之切部朝向軸方向滑動而 支更帶輪之槽寬的槽寬可變機構；其特徵在於， 上述可動帶輪包括支持於上述帶輪軸之轂部， ❹ 上述較部於上述帶輪軸之半徑方向隔開設置有：於上述帶 輪軸方向可移動地支持上述可動帶輪之滑動部；及被傳達有 上述帶輪軸之扭矩之被傳達扭矩部。再者，於本案中在稱「帶 輪軸」之情況時，係指第丨及/或第2帶輪軸。 根據該V型皮帶式無段變速機，藉由使帶輪轴方向之滑 動與扭矩之被傳達於半徑方向相隔開，可避免轂部之大型化 並緩和應力集中，可良好地進行可動帶輪之滑動及扭矩傳 達。 即，當傳達大小相同之扭矩時，與習知情形相比，可減小 作用於扭矩傳達面之面壓。該面壓之減小可有助於扭矩傳達 099100069 5 201033503 部之小型化， 型化。 進而可有助於 v型皮帶無段變速機整體之小 無法相二述較部之被傳達扭矩部藉由與設為 方向抵接而傳達^ 方=::Γ:Γ:傳達扭矩部可沿上述帶輪軸之轴綠 且错由於上述帶輪軸之旋轉 扭矩。 若以如此構成， 階===成為’上述_包括_、及經由 徑部，°又…I部而構成上述可動帶輪之支持部之小 上述扭矩傳達部為與上述帶難絲之其 =:::方向延伸之凸緣部、及-體地設置於2 緣权上达轴方向部，該構件之上述凸緣部由插通於上 動帶輪之㈣且麵邊上料純之小彳筒構件之 :部、與上述階差部所鱗，由此_定為無_對於上述 帶輪軸而旋轉。 ^ 若以如此構成，與扭矩傳達部—體形成於帶輪軸之情 比，可容㈣將其製得，且可將扭矩傳達㈣定為無法相對 099100069 201033503 於帶輪轴而確實旋轉。 又，較理想的是構成為，於上述扭矩傳 —〜功：跑得遠 分、與上述穀部之扭矩傳達面之間，設^輪線方向部 衝構件^ & 合成樹脂製之緩 若以如此構成，則無須對扭矩傳達面供 地移動可動帶輪。 θ並可平滑 ❹ 又，較理想的是構成為，上述扭矩傳達部 周圍設置有複數個。 若以如此構成，扭矩傳達可變得更順暢， 實地減小。 之卡合部於 車由線 同時面壓可更確 又，較理想的是構成為，於上述可動帶輪之轂部之外周， 經由軸承而配置有用於使該可動帶輪滑動之卡合構件。 若以如此構成’可精簡地構成用於使可動帶輪滑動之動力 傳達系統。又，藉由縮短軸方向長度並不將扭矩傳達至卡合 ❿ 構件，而可防止卡合構件之磨損。 【實施方式】 以下，參照圖式說明本發明之ν型皮帶式無段變速機之 實施形態。 圖1係表示作為使用本發明V型皮帶式無段變速機之一 實施形態之一例的速克達型二輪機車之側視圖，圖2係上述 二輪機車中包括V型皮帶式無段變速機之動力單元之側視 圖，圖3係省略圖2局部之m-πι剖視圖。 099100069 7 201033503 如圖1所示，該二輪捲_ ^ 平機卓10為於車架11之後部，藉由樞 轴12與後避震器單元13而將動力料則目對於車架u 可搖動自如地懸掛於樞轴12周圍之車輛。於前管llh可操 般自如地安裝有奴14,且於額叉14之下端處安裝有前 輪15F。於前叉14之上部絲有轉向把手15。 車架11於後部具有左右一對座架m(僅圖示其中一者）。 於該座架11S上設置有供乘客跨坐之座部Μ，於該座部Μ 之下方β又置有朝向上方開口之儲物箱17。於儲物箱17之後 方配置有燃料箱18。 動力單元20包括作為驅動源之引擎％、及設置於該引擎 3〇後方之變速箱40。變速笳4Λ 叉迷相40中内置有將引擎30之驅動 力傳達至後輪15R之ν型古揲— π 1反常式無段變速機50。動力單元 20可搖動自如地安裝於車牟n 早朱11之後端部，且引擎30之動 力經由變速箱40内之v型古鹛 1反帶式無段變速機50而被傳達 至後輪15R。因此，動力單元2〇兼作後搖臂。 如圖3所示’引擎30主要自杯ώ 受巴括曲柄軸箱31、氣缸體32、 氣缸頭33、以及氣缸頭蓋34。於 %典抦軸箱31之前端結合有 指向大致水平方向之氣缸體32，趴兮^ 肢^於邊氣缸體32之前端結合 有氣缸頭33,且於該氣紅頭μ夕山 碩33之則端結合有氣缸頭蓋34。 藉由曲柄轴箱31中所保持之滾 获珠輛承31b、31b而可旋轉 地支持曲柄轴31c，於氣紅體 ” &體32时義地設置有活塞 32p。曲柄軸31c與活塞32藉由 P精由連桿32c而連結，且曲柄 099100069 8 201033503 轴31c藉由活塞32p之往復移動而旋轉。曲柄軸Μ。構成下 述主軸51。於氣缸頭33連接有與燃燒室33e連通之進氣管 35(圖1)及排氣管36(圖υ。如圖2所示，於進氣管％連接 有燃料供給裝置35a及空氣淨化器35c。於排氣裝置允連 接有消音器（未圖示）。 於圖3令，元件符號卿係火星塞，元件符號30c係設置 於氣缸頭蓋34内並由曲柄軸31c經由鏈條e而受旋轉驅動 ❹之氣動閥用凸輪轴，元件符號31g係於曲柄軸箱蓋Μ。内具 有設置於曲柄軸31c周圍之定子與固定於曲柄軸3ic之轉; 的發電機。 如圖3所示，變速箱（亦僅稱作箱體)4〇為構成上述動力單 元20之-部分之箱體。該箱體4〇包括右箱體撕及與= 結合之左箱體40L。右箱體40R與上述曲柄軸箱31製成二 體。於右箱體40R之後部結合有構成使副軸&之旋轉減速 ❹並將其傳達至後輪軸55之商輪箱（4〇g)的齒輪箱蓋彻。 〃圖4係圖3之局部放大圖，® 5係省略圖3中局部之v V型皮π式無段變速機5〇主要包括. 於作為第1帶輪軸夕士紅文符 釉之主軸51的驅動帶輪60;支持於作 2 f輪轴之·52的從動帶輪;及架設於料驅動帶輪 6〇與從動帶輪7〇之間的v型皮帶53。又，該 = 無段變速機50包括 匕栝·收納上述驅動帶輪60、從動帶輪兀、 099100069 201033503 及V型皮帶53之箱體40;變更上述驅動帶 槽寬可變機構80(圖4);使該槽寬可變機構肋 9寬之 單元90 ;及將該驅動單元9〇之動力僂棄 驅動 構80之動力傳達部1〇〇。 〜見』變機 再者，槽寬可變機構80(故而上述動力傳達部1〇〇等亦可) 可構成為變更從動帶輪70之槽寬而非變更驅動帶輪6〇之槽 寬’亦可構成為變更驅動帶輪60之槽寬及從動帶輪7〇之槽 寬。因此’本案中當稱作「帶輪軸」日寺，係指第…或第2 帶輪軸。 本實施形態之V型皮帶式無段變速機5〇之特徵之一在 於，將驅動單元90及動力傳達部1〇〇配置於箱體4〇内。 以下，依序說明V型皮帶式無段變速機5〇之構成。 如圖3、圖4所示，於本實施形態中，主軸51如上述由 曲柄軸31c所構成。 主轴51包括：由作為轴承構件之轴承3lb、Mb以兩端支 持的大徑部51a;及經由階差部51d設置於該大徑部51a且 構成驅動帶輪60中之可動帶輪62之支持部的小徑部51b。 如圖4所示，於本實施形態中，於驅動帶輪6〇設置有槽 寬可變機構80。 驅動帶輪60包括：無法於主軸（帶輪軸)5i之軸方向移動 之固定帶輪（固定半體)61 ;及相對於主軸51而可在軸方向 移動但無法相對旋轉而安裝的可動帶輪(可動半體)62。 099100069 10 201033503 為用於如下機構：藉由使可動帶輪62 槽寬可變機構80 沿帶輪軸51中可動帶輪62 動，而變更帶輪60之槽寬、 62之間隔。 之支持部51b而朝向軸方向滑 即變更固定帶輪61與可動帶輪 槽寬可變機構80包括么叙、土& μ 栝.δ又為無去相對於帶輪軸51而相對 旋轉之扭矩傳達部11G ;及設置於可動帶輪幻且與扭矩傳 達部110之間進行扭矩傳達之轂部63。G. For the purpose of the invention, the V-belt type stepless speed changer of the present invention comprises: a drive pulley that supports a main shaft of the wheel axle; and is supported as a second driven pulley; is mounted on the drive pulley and the driven pulley a V-belt between the pulleys; and a groove width of the pulley by sliding the cutting pulley of the driving pulley and/or the driven pulley along the cutting portion of the movable pulley of the pulley shaft toward the axial direction The variable groove width mechanism is characterized in that the movable pulley includes a hub supported by the pulley shaft, and the plurality of the pulleys are spaced apart from the radial direction of the pulley shaft and are movably supported in the pulley axial direction. a sliding portion of the movable pulley; and a torque transmitting portion that transmits the torque of the pulley shaft. Furthermore, in the present case, the term "available wheel axle" means the third and/or second pulley shaft. According to the V-belt type stepless speed changer, the sliding of the pulley shaft direction and the torque are transmitted in the radial direction, thereby avoiding an increase in the size of the boss portion and alleviating stress concentration, and the movable pulley can be satisfactorily performed. Sliding and torque transmission. That is, when the torque of the same magnitude is transmitted, the surface pressure acting on the torque transmitting surface can be reduced as compared with the conventional case. This reduction in surface pressure can contribute to the miniaturization and shaping of the torque transmission 099100069 5 201033503. Furthermore, it can contribute to the small size of the v-belt stepless speed changer. The transmitted torque portion is conveyed by abutting with the set direction. ^::Γ:Γ: The torque portion can be transmitted along the line. The shaft of the pulley shaft is green and is wrong due to the rotational torque of the pulley shaft. According to this configuration, the step === becomes the above-mentioned _including _, and the small torque transmitting portion that constitutes the support portion of the movable sheave via the diameter portion, and the other portion I is the same as the above-mentioned belt. ::: The flange portion extending in the direction and the body are disposed on the edge portion of the 2 edge, and the flange portion of the member is inserted into the (4) of the upper pulley and the surface is purely small. The section of the cylinder member and the scale of the step portion described above are determined to be _ for the pulley shaft to rotate. ^ With this configuration, it can be made (4) in comparison with the torque transmitting portion body formed on the pulley shaft, and the torque transmission (4) can be set to be inconsistent with the pulley shaft and can be rotated relative to 099100069 201033503. Further, it is preferable that the torque transmission is performed in a distance between the torque transmission and the torque transmission surface of the valley portion, and the rotation direction component is formed in the direction of the wheel. According to this configuration, it is not necessary to move the movable pulley to the torque transmitting surface. θ and smooth ❹ Further, it is preferable that a plurality of the torque transmitting portions are provided around the torque transmitting portion. With this configuration, the torque transmission can be made smoother and reduced in the field. The engaging portion can be more accurately pressed at the same time as the vehicle is lined, and preferably, the engaging member for sliding the movable pulley is disposed on the outer circumference of the hub portion of the movable pulley. . According to this configuration, the power transmission system for sliding the movable pulley can be simplified. Further, by shortening the length in the axial direction and not transmitting the torque to the engaging member, the engagement member can be prevented from being worn. [Embodiment] Hereinafter, an embodiment of a ν-belt type stepless speed changer according to the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side elevational view showing a scooter type two-turbine vehicle as an example of an embodiment of a V-belt type stepless speed changer according to the present invention, and Fig. 2 is a V-belt type stepless speed changer including the above-mentioned two-wheeled vehicle. A side view of the power unit, FIG. 3 is a partial cross-sectional view of the m-πι of FIG. 099100069 7 201033503 As shown in FIG. 1 , the two-wheeled _ ^ flat machine 10 is at the rear of the frame 11 , and the power material is tilted to the frame u by the pivot 12 and the rear shock absorber unit 13 A vehicle that is suspended from the pivot 12 freely. A slave 14 is arbitrarily mounted to the front tube 11h, and a front wheel 15F is attached to the lower end of the forehand 14. A steering handle 15 is threaded over the front fork 14. The frame 11 has a pair of right and left mounts m at the rear (only one of which is shown). The seat frame 11S is provided with a seat portion for the passenger to straddle, and a storage box 17 opening upward is provided below the seat portion β. A fuel tank 18 is disposed behind the storage box 17. The power unit 20 includes an engine % as a drive source and a gearbox 40 disposed behind the engine 3 . The shifting 笳4Λ fork camouflage 40 has a built-in ν-type ancient 揲1 π 1 anomalous stepless speed changer 50 that transmits the driving force of the engine 30 to the rear wheel 15R. The power unit 20 is swingably mounted to the rear end of the rut n early Zhu 11, and the power of the engine 30 is transmitted to the rear wheel 15R via the v-type 反1 reverse belt type stepless speed changer 50 in the transmission 40. . Therefore, the power unit 2 is also used as a rear rocker arm. As shown in Fig. 3, the engine 30 is mainly from the cup, the crankcase 31, the cylinder block 32, the cylinder head 33, and the cylinder head cover 34. At the front end of the Axis shaft box 31, a cylinder block 32 directed to a substantially horizontal direction is coupled, and the cylinder head 33 is coupled to the front end of the side cylinder block 32, and the gas head is provided at the front end of the cylinder head 32. A cylinder head cover 34 is coupled to the end. The crank shaft 31c is rotatably supported by the rolling ball bearings 31b, 31b held in the crankcase 31, and the piston 32p is provided in the gas red body & body 32. The crank shaft 31c and the piston 32 are provided. P is connected by the connecting rod 32c, and the crank 099100069 8 201033503 shaft 31c is rotated by the reciprocating movement of the piston 32p. The crank shaft Μ constitutes the following main shaft 51. The cylinder head 33 is connected to the combustion chamber 33e. The intake pipe 35 (Fig. 1) and the exhaust pipe 36 (Fig. 2, a fuel supply device 35a and an air cleaner 35c are connected to the intake pipe %. A muffler is connected to the exhaust device ( In the case of FIG. 3, the component symbol is a Mars plug, and the component symbol 30c is a camshaft for a pneumatic valve which is provided in the cylinder head cover 34 and is rotationally driven by the crankshaft 31c via the chain e, and the component symbol 31g It is attached to the crankcase cover Μ. It has a stator disposed around the crankshaft 31c and a generator fixed to the crankshaft 3ic. As shown in Fig. 3, the gearbox (also referred to as a box) is a box constituting a portion of the power unit 20. The box 4 includes a right box tear The left case 40L combined with =. The right case 40R is formed into a two-body with the crank case 31. The rear part of the right case 40R is coupled with a structure that decelerates the rotation of the counter shaft & and transmits it to the rear axle The gearbox of the commercial wheel box (4〇g) of 55 is covered. Figure 4 is a partial enlarged view of Figure 3, and the ® 5 series omits the partial V-shaped π-type stepless speed changer in Figure 3. The driving pulley 60 as the main shaft 51 of the first pulley shaft, and the driven pulley which is supported as the 52 of the 2f axle; and the driven pulley 6〇 and the driven a v-belt 53 between the pulleys 7 。. In addition, the = stepless transmission 50 includes a housing 40 for housing the drive pulley 60, the driven pulley rim, 099100069 201033503 and the V-belt 53; The drive belt groove width variable mechanism 80 (FIG. 4) is modified; the unit 90 having the groove width variable mechanism rib 9 wide; and the power transmission portion of the drive unit 9 偻 power drive unit 80 Further, the groove width variable mechanism 80 (the power transmission unit 1 or the like may be used) may be configured to change the groove width of the driven pulley 70 instead of changing the drive pulley 6 The groove width 'can also be configured to change the groove width of the drive pulley 60 and the groove width of the driven pulley 7〇. Therefore, the term "the pulley axis" in the present case means the ... or the second pulley shaft. One of the features of the V-belt type stepless speed changer 5 of the present embodiment is that the drive unit 90 and the power transmission unit 1 are disposed in the casing 4A. Hereinafter, the V-belt type is described in the following. As shown in Figs. 3 and 4, in the present embodiment, the main shaft 51 is constituted by the crank shaft 31c as described above. The main shaft 51 includes a large diameter portion 51a supported by the bearings 31b and Mb as bearing members at both ends, and a movable pulley 62 disposed in the large diameter portion 51a via the step portion 51d and constituting the driving pulley 60. The small diameter portion 51b of the portion. As shown in Fig. 4, in the present embodiment, a groove width varying mechanism 80 is provided in the drive pulley 6'. The drive pulley 60 includes a fixed pulley (fixed half) 61 that cannot move in the axial direction of the main shaft (the pulley shaft) 5i, and a movable pulley that is movable in the axial direction with respect to the main shaft 51 but cannot be relatively rotated. (movable half) 62. 099100069 10 201033503 is a mechanism for changing the groove width of the pulley 60 and the interval of 62 by moving the movable pulley 62 groove width varying mechanism 80 along the movable pulley 62 in the pulley shaft 51. The support portion 51b is slid in the axial direction, that is, the fixed pulley 61 and the movable pulley groove width variable mechanism 80 are included, and the torque is relatively reversed with respect to the pulley shaft 51. The transmitting portion 11G; and a hub portion 63 that is disposed on the movable pulley and that transmits torque between the torque transmitting portion 110 and the torque transmitting portion 110.
圖6係表示扭矩傳達部11〇之主要部分之分解立體圖。 如圖4〜圖6所示，可動帶輪62包括支持於帶輪軸51之 轂β 63 63於帶輪轴之半徑方向隔開設置有：於帶 輪軸方向可移動地支持可動帶輪62之滑動部63a;及被傳 達有帶輪軸51之扭矩之被傳達扭矩部64。 扭矩傳達部110包括：朝帶輪轴51之半徑方向延伸之凸 緣。P 111 ’及ϋ地设置於該凸緣部m且朝轴線方向延伸 ®之軸線方向部分112。轴線方向部分112位於半徑方向上較 可動帶輪62中與帶輪軸51之可動帶輪62之支持部51b的 對向面(本實施形態#储部63之内周面)63a而更靠外側 處。軸線^向部分112設置錢數個(本實麵態中係於圓 周方向上等間距地設置有3個）。 扭矩傳達部110亦可與主軸51成一體而形成，但本實施 形態中，扭矩傳達部110由與帶輪軸51分離之其他構件（亦 將該構件稱作扭矩傳達構件)所構成。 099100069 11 201033503 fe矩傳達11〇之凸緣部Ul形狀如下；使圓 111a於3個部位處朝半徑方向呈韓射狀地延設 = 設部之前端分別—體地形成有軸線方向部分112。亥延 於可動帶輪62之較部63設置有與扭矩傳達部U0之轴線 方向心112之間進行扭矩傳達的扭轉達面㈠。該拓 傳達面64可相對於軸線方向部分112而朝轴線方向進 對移動。 於可動帶輪62之轂部63設置有供扭矩傳達部Ug之轴線 方向部分112插入之孔65。該孔65橫剖面呈扇形，且_ 線方向部分112之橫剖面相對應而大致吻合。該孔65圓周 方向之端面形成為扭矩傳達面64。軸線方向部分112於已 插入至穀部63之孔65中之狀態下’如上述位於半徑方向上 較轂部63之内周面63a更靠外側處。 於扭矩傳達部110之軸線方向部分112、與轂部63之扭 矩傳達面64之間，設置有合成樹脂製(例如於聚醯胺樹脂(例 如PA66)中混合硬化材（例如碳）而成所需硬度之材料）之緩 衝構件66。 緩衝構件66係安裝於扭矩傳達部110之軸線方向部分112 之前端部内側者，其具有與軸線方向部分112之前端部相符 合之形狀。圖6所示之缓衝構件66為一體成型品，其包括 彎曲狀之内周壁部66a、兩側壁部66b、66b、底壁部66c、 及於内周壁部66a朝向半徑方向外側突出之突起66d。 099100069 12 201033503 於扭矩傳達部11G之轴線方向部分m設置有孔ii2d。 ，货構牛66使内周壁部編之突起咖欲合至軸線方向 1分m =孔112d中，使内周壁部咖接合於軸線方向部 分112之前端部分内側，藉此安裝於轴線方向縣出之前 端部分。 軸線方向部分112係於安裝有緩衡構件66之狀態下與缓 衝構件66 -併插入至較部63之孔65中。於緩衝構件的 ❹已插人至孔65之狀態下，缓衝構件66之側壁部66b之外側 面66M構成與敎部63之扭矩傳達面64相抵接的扭矩傳達 面。 緩衝構件66可與軸線方向部分112 —併於轂部63之孔 65内朝轴線方向滑動，但由於缓衝構件66之突起66d與軸 線方向部分112之孔112d相卡合’故即使軸線方向部分ιΐ2 滑動，緩衝構件66亦不會自軸線方向部分i12脫離。 ❹ 再者，於圖6中表示出將緩衝構件66安裝於轴線方向部 分112之前端部内侧之構成’但亦可構成為將緩衝構件％ 安裝於軸線方向部分112之前端部外側。又，亦可構成為不 於軸線方向部分112安裝缓衝構件66，於該情形時， 轴線 方向部分112之侧面構成與轂部63之扭矩傳達面64相抵接 的扭矩傳達面。 於圖5、圖6中，元件符號67係圓筒構件。該圓筒構件 67插通於可動帶輪62之轂部63中且安裝於帶輪軸51 099100069 13 201033503 …藉由該㈣㈣，砂上 差部训之間共同緊固餘矩傳達構件uo、；^51之搜 及固定帶輪61，使固定於小徑部上a 3件67、 67之-端部⑺、及上述階差部叫夹持凸二二轉件 扭矩傳達構件UG固定為無法相對於帶輪轴51° =而將 又，以圓筒構件67之另一端部67b、及雙螺巾冒邱：::轉。 帶輪6卜而將其固定為無法相對於帶輪轴5\持固定 可動帶輪62如上述藉由將扭矩傳達部I〗。之“疑轉 分=:至_之孔65中，安裝成相對:線： 而無法旋轉但且可滑動。 ~彻种51 如圖4、圖5所示，於可動帶輪62之較部63之外周 有用於使該可動帶輪62滑動之卡合構件12()。關於卡合構 件120，將與動力傳達部1〇() 一併於下文詳細說明。。 如圖4、圖5所示，驅動單元9〇包括：收容有作為驅動 源之馬達(伺服馬達)Μ(圖5)之馬達部Ml(圖4);及藉由馬達 Μ之動力而作動之該驅動單元9〇之輸出軸91 ;該輸出軸 91與上述主軸51保持平行配置。再者，於藉由驅動單元卯 而變動從動帶輪70之槽寬之情形下，輸出轴91與副轴52 保持平行配置。 驅動單元90包括將馬達Μ之動力傳達至輸出轴91之減 速齒輪組92。於減速齒輪組92之最末段齒輪92e，同心狀 099100069 14 201033503 地連接有滾珠螺桿（外螺紋)93。輸出轴91之基部側形成為 圓筒狀，且於其内面形成有滚珠螺桿（内螺紋贿，該内螺 紋91b螺合於滾珠螺桿（外螺紋)93。因此，若藉由馬達M2 驅動而經由減速齒輪組92使滚珠螺桿93旋轉，則輸出軸 91隨該旋轉方向朝其軸線方向（圖4中之箭頭父卜又2方向） 進退移動。 藉由以螺釘95將收容有減速齒輪組92之齒輪箱94緊固 ❹於箱體4〇内所設置之安裝部41(圖3)，而將驅動單元9〇固 定於箱體40内。於本實施形態中係構成為藉由側蓋视c 來覆蓋齒輪箱94(即驅動單元9〇)，而將驅動單元％收容於 箱體40内’其中該織4GLC以螺釘42可裝卸自如地安裝 於左箱體靴，形成左箱體飢之—部分，但亦成 侧蓋视C與左箱體飢完全成一體化而將驅動單元％及 動力傳達部100收容於箱體40内。 ❹如圖4所示’輸出軸91之前端9U朝向較驅動單元9〇 之馬達部Ml更靠V型皮帶53侧突出，且自與輸出轴” 呈正交之方向觀看下，該輸出轴91之至少一部分％被配 置於上述v型皮帶之皮帶寬度w内。馬達部Μι被配置於 皮帶寬度W夕卜。如圖2、圖5所示，自輸出抽91之_方 向觀看下，輸出轴91被配置於v型皮帶53之旋轉軌跡内 53i中連接主軸51與副轴52的線L1上。如圖4所示減 速齒輪組92係配置於v型皮帶53之皮帶寬度臀外，同時 099100069 15 201033503 如圖5所不’自輪出軸91之軸線方向觀看下，減速齒輪組 92與V型皮帶53保持重叠配置。 圖所不，動力傳達部100係用於將驅動單元90 之動力傳4至上述似可變㈣8G者，其包括上述卡合構 件no及連結構件13G。卡合構件i2G與連結構㈣藉由 螺釘131而結合。連結構件nG藉由騎in而結合於輸出 〇 軸91。因此’若輪出軸91進退移動，則卡合構件m及連 結構件13G亦與該輪出軸91 —併進退移動。 如圖4所tf ’連結構件13〇中與輸出軸9 係連結於輸_91之前細916。 133 如圖5所示’卡合構件12G包括間接地卡合於可動帶輪 62之較部63而使可動帶輪62滑動之卡合部121。如圖4 所不’於可動帶輪62之較部63外周，固料無法於較部 63之轴線方向滑動之軸承的。於該軸承69之外周固定有同Fig. 6 is an exploded perspective view showing the main part of the torque transmitting portion 11A. As shown in FIG. 4 to FIG. 6, the movable pulley 62 includes a hub β 63 63 supported by the pulley shaft 51. The movable pulley 62 is spaced apart from the radial direction of the pulley shaft to movably support the sliding of the movable pulley 62 in the direction of the pulley shaft. The portion 63a; and the transmitted torque portion 64 that transmits the torque of the pulley shaft 51. The torque transmitting portion 110 includes a flange that extends in the radial direction of the pulley shaft 51. P 111 ' and the axial direction portion 112 which are provided in the flange portion m and extend in the axial direction. The axial direction portion 112 is located radially outward of the opposing surface (the inner circumferential surface of the storage portion 63) 63a of the movable pulley 62 and the support portion 51b of the movable pulley 62 of the pulley shaft 51. At the office. The axis ^ is provided with a plurality of money in the portion 112 (in the actual surface state, three are arranged at equal intervals in the circumferential direction). The torque transmitting portion 110 may be formed integrally with the main shaft 51. However, in the present embodiment, the torque transmitting portion 110 is constituted by another member (also referred to as a torque transmitting member) that is separated from the pulley shaft 51. 099100069 11 201033503 The shape of the flange portion U1 of the femoral conveyance 11 is as follows; the circle 111a is extended in the radial direction at three places: the axial direction portion 112 is integrally formed at the front end of the portion. The portion 63 of the movable pulley 62 is provided with a torsion surface (one) for transmitting torque between the axis 112 of the torque transmitting portion U0. The extension surface 64 is movable in the axial direction with respect to the axial direction portion 112. The boss portion 63 of the movable pulley 62 is provided with a hole 65 into which the axial direction portion 112 of the torque transmitting portion Ug is inserted. The hole 65 has a fan-shaped cross section, and the cross section of the _ line direction portion 112 corresponds to substantially coincide. The end face of the hole 65 in the circumferential direction is formed as a torque transmitting surface 64. The axial direction portion 112 is in the state of being inserted into the hole 65 of the valley portion 63 as described above in the radial direction from the inner circumferential surface 63a of the hub portion 63. Between the axial direction portion 112 of the torque transmitting portion 110 and the torque transmitting surface 64 of the hub portion 63, a synthetic resin (for example, a polyacetamide resin (for example, PA66) is mixed with a hardened material (for example, carbon). A cushioning member 66 of a material requiring hardness. The cushioning member 66 is attached to the inner side of the front end portion of the axial direction portion 112 of the torque transmitting portion 110, and has a shape conforming to the front end portion of the axial direction portion 112. The cushioning member 66 shown in Fig. 6 is an integrally molded product including a curved inner peripheral wall portion 66a, two side wall portions 66b and 66b, a bottom wall portion 66c, and a projection 66d that protrudes outward in the radial direction from the inner peripheral wall portion 66a. . 099100069 12 201033503 A hole ii2d is provided in the axial direction portion m of the torque transmitting portion 11G. The cargo cow 66 has the inner peripheral wall portion spliced to the axial direction by 1 minute m = the hole 112d, so that the inner peripheral wall portion is joined to the inner side of the front end portion of the axial direction portion 112, thereby being installed in the axis direction county Out of the front part. The axial direction portion 112 is attached to the cushion member 66 - and inserted into the hole 65 of the comparative portion 63 in a state where the balance member 66 is attached. In a state where the dam of the cushioning member has been inserted into the hole 65, the outer side surface 66M of the side wall portion 66b of the cushioning member 66 constitutes a torque transmitting surface that abuts against the torque transmitting surface 64 of the dam portion 63. The cushioning member 66 is slidable in the axial direction with the axial direction portion 112 and in the hole 65 of the hub portion 63, but since the projection 66d of the cushioning member 66 is engaged with the hole 112d of the axial direction portion 112, even the axial direction When the portion ι 2 is slid, the cushioning member 66 is not detached from the axial direction portion i12. Further, Fig. 6 shows a configuration in which the cushioning member 66 is attached to the inner side of the end portion before the axial direction portion 112. However, the cushion member may be attached to the outer side of the end portion before the axial direction portion 112. Further, the cushion member 66 may be attached not to the axial direction portion 112. In this case, the side surface of the axial direction portion 112 constitutes a torque transmitting surface that abuts against the torque transmitting surface 64 of the hub portion 63. In Fig. 5 and Fig. 6, the reference numeral 67 is a cylindrical member. The cylindrical member 67 is inserted into the hub portion 63 of the movable pulley 62 and is mounted on the pulley shaft 51 099100069 13 201033503 ... by the (4) (4), the residual torque transmitting member uo is fixed between the sand upper training portions; The search and fixing pulley 61 fixes the end portion (7) of the three pieces 67, 67 fixed to the small diameter portion, and the step portion called the clamping convex two-two-turn member torque transmitting member UG is fixed to be incapable of being opposite to the belt The axle 51° = and again, the other end portion 67b of the cylindrical member 67, and the double-screws are turned:::. The pulley 6 is fixed so as not to be fixed relative to the pulley shaft 5\. The movable pulley 62 is described above by the torque transmitting portion. In the hole 65 of the suspected turn =: to _, it is mounted in the opposite direction: the line: it cannot be rotated but is slidable. ~ The full type 51 is shown in Fig. 4 and Fig. 5 at the opposite portion 63 of the movable pulley 62. The outer periphery has an engaging member 12 () for sliding the movable pulley 62. The engaging member 120 will be described in detail below together with the power transmitting portion 1 (see Fig. 4 and Fig. 5). The drive unit 9A includes: a motor portion M1 (FIG. 4) that houses a motor (servo motor) Μ (FIG. 5) as a drive source; and an output shaft of the drive unit 9 that is actuated by the power of the motor Μ 91. The output shaft 91 is disposed in parallel with the main shaft 51. Further, when the groove width of the driven pulley 70 is varied by the driving unit ,, the output shaft 91 and the counter shaft 52 are arranged in parallel. 90 includes a reduction gear set 92 that transmits the power of the motor cymbal to the output shaft 91. At the last stage gear 92e of the reduction gear set 92, a ball screw (external thread) 93 is connected to the concentric shape 099100069 14 201033503. The output shaft 91 The base side is formed in a cylindrical shape, and a ball screw (internal thread bribe) is formed on the inner surface thereof. 91b is screwed to the ball screw (external thread) 93. Therefore, if the ball screw 93 is rotated via the reduction gear set 92 by the motor M2, the output shaft 91 is directed toward the axis thereof in the direction of rotation (the arrow in Fig. 4) The father and the second direction) move forward and backward. The drive unit 9 is fastened by fastening the gear box 94 containing the reduction gear set 92 to the mounting portion 41 (FIG. 3) provided in the casing 4〇 by the screw 95. The cymbal is fixed in the casing 40. In the present embodiment, the gearbox 94 (i.e., the drive unit 9A) is covered by the side cover c, and the drive unit is housed in the casing 40. The 4GLC can be detachably mounted on the left box body shoe with the screw 42 to form a part of the left box body hungry, but the side cover C is completely integrated with the left box body, and the drive unit % and the power transmission unit 100 are integrated. It is housed in the casing 40. As shown in Fig. 4, the front end 9U of the output shaft 91 protrudes toward the V-belt 53 side toward the motor portion M1 of the drive unit 9A, and is orthogonal to the output shaft. Viewed, at least a portion of the output shaft 91 is disposed on the v-belt of the v-belt. In the w, the motor portion 被 is disposed on the belt width W. As shown in Fig. 2 and Fig. 5, the output shaft 91 is disposed in the rotation locus 53i of the v-belt 53 as viewed from the direction of the output pump 91. The main shaft 51 and the sub-shaft 52 are connected to the line L1. As shown in FIG. 4, the reduction gear set 92 is disposed outside the belt width of the v-belt 53 and is 099100069 15 201033503 as shown in FIG. The reduction gear set 92 and the V-belt 53 are arranged to overlap each other when viewed in the axial direction. The power transmission unit 100 is for transmitting the power of the drive unit 90 to the above-mentioned variable (four) 8G, which includes the above-described engagement. Member no and connecting member 13G. The engaging member i2G and the connecting structure (4) are coupled by a screw 131. The joint member nG is coupled to the output shaft 91 by riding in. Therefore, if the wheel-out shaft 91 moves forward and backward, the engaging member m and the connecting member 13G also move forward and backward with the wheel-out shaft 91. As shown in Fig. 4, the tf' connecting member 13A is coupled to the output shaft 9 in series with the output _91. 133 As shown in Fig. 5, the engaging member 12G includes an engaging portion 121 that is indirectly engaged with the opposite portion 63 of the movable pulley 62 to slide the movable pulley 62. As shown in Fig. 4, the outer periphery of the portion 63 of the movable pulley 62 is not supported by the bearing in the direction of the axis of the portion 63. Fixed at the outer circumference of the bearing 69
G 樣無法於袖線方向滑動之卡合環122。於卡合環122之外周 設置有環狀之卡合槽123，且於該卡合槽123卡合有上述卡 口構件120之卡合部⑵。如此’圖示中係使卡合構件η。 之卡合部121間接地(經由卡合環122及軸承69)卡合於可動 帶輪62之較部63，但亦可使卡合部121直接地卡合於較部 63 〇 ^圖4所示，卡合部121係就可動帶輪以之轴線方向上， 在可動帶輪62與支持安裂有該可動帶輪a的帶輪軸Μ之 099100069 16 201033503 軸承部31b之間鄰接於該軸承部31b而配置。即，卡合部 121被配置為儘可能靠近軸承部31b。較理想的是，卡合部 121在隔著帶輪軸51而相對向之至少兩個部位處與可動帶 輪62之轂部63相卡合，於本實施形態中，卡合部121就帶 輪軸51(即就轂部63之旋轉中心）呈點對稱狀地於兩個部位 處保持卡合。 如圖3所示，V型皮帶式無段變速機5〇之作為從動軸的 ❹副軸52可旋轉自如地支持於上述箱體4〇之左箱體4〇[及 齒輪箱蓋40C。於該副轴52經由離心式離合器54而設置有 從動帶輪70。 從動帶輪70包括固定帶輪（固定半體)71及可動帶輪(可動 半體)72。於上述驅動帶輪6〇與從動帶輪7〇架設有環狀v 型皮帶53，用於將驅動帶輪6〇之旋轉傳達至從動帶輪7〇。 若從動帶輪70之轉速超過既定轉速’則設置於從動帶輪％ ❿與副軸52之間之離心式離合器54變成連接狀態，副軸52 開始旋轉。 使副轴52之旋轉減速並將其傳達至後輪軸55之齒輪組 (齒輪箱）40G包括：設置於副軸52之齒輪52g :嚙合於該齒 輪52g之大徑齒輪141 ;直徑小於該大齒輪141且與大齒輪 141 一併旋轉之小齒輪142 ;及與該小齒輪142嚙合之大齒 輪143。大齒輪143係無法相對旋轉地安裝於後輪轴55。 因此，副軸52之旋轉經減速後傳達至後輪軸％，而驅動 099100069 17 201033503 安裝於後輪軸55上之後輪15R(圖j)。 從動帶輪70之可動帶輪72安裝為可相對於副轴52而於 韩方向呈移動自如。可動帶輪72由螺旋彈f 73㈣賦予朝 靠近固定帶輪71方向勢能，並根據作用於v型皮帶之 張力，於軸方向上移動。即’若驅動帶輪6〇之可動帶輪62 朝槽寬縮小之方向位移’增大v型皮帶53對於驅動帶輪6〇 之捲繞直徑，則捲繞於從動帶輪7G之v型皮帶53被拉向 驅動帶輪60側，作用於v型皮帶53之張力變大，藉由該 張力之增大’從動帶輪70之可動帶輪72朝槽寬擴展之方二 位移，V型皮㈣胁從動帶輪7G之捲繞直徑變小，副轴 52以高速旋轉。當驅動帶輪⑼之可動帶輪幻朝槽寬擴展 之方向位移時’魏行相反之作動，副軸52㈣歧轉。 驅動單元9〇藉由未圖示控制部之控制而作動，於圖4中 若輸出軸91朝箭頭X1方向突出且可動帶輪以朝幻方向 滑動，則固定帶輪61與可動帶輪62之間隔擴大，v型皮帶 53對於驅動帶輪60之捲繞直栌鐵, k變小，同時V型皮帶53對 於從動帶輪70之捲繞直徑變大，么 後輪15R以低速受到旋轉 驅動，以亦可承受高負載。相反 — 久右輸出軸91朝箭頭X2 方向滑動且可動帶輪62朝X2方β、、κ 向滑動，則固定帶給61应 可動帶輪62之間隔變窄，ν 疋▼輪6丨” μ古"纖4· ▼ 53對驅動帶輪6〇之捲 繞直位變大，同時V型皮帶53 , 搿於從動帶輪70之捲繞直 徑變小，後輪1SR以高速受到旋轉驅動。 099100069 201033503G-like snap ring 122 that cannot slide in the direction of the sleeve. An annular engagement groove 123 is provided on the outer circumference of the engagement ring 122, and the engagement portion (2) of the above-described hook member 120 is engaged with the engagement groove 123. Thus, the engaging member η is made in the illustration. The engaging portion 121 is indirectly engaged (via the engaging ring 122 and the bearing 69) with the comparative portion 63 of the movable pulley 62, but the engaging portion 121 can also be directly engaged with the comparative portion 63. The engaging portion 121 is adjacent to the bearing between the movable pulley 62 and the bearing portion 31b that supports the pulley shaft of the movable pulley a in the axial direction of the movable pulley. The unit 31b is arranged. That is, the engaging portion 121 is disposed as close as possible to the bearing portion 31b. Preferably, the engaging portion 121 is engaged with the boss portion 63 of the movable pulley 62 at at least two portions facing each other with the pulley shaft 51 interposed therebetween. In the present embodiment, the engaging portion 121 is coupled to the axle portion. 51 (that is, the center of rotation of the hub portion 63) is held in a point symmetrical manner at two locations. As shown in Fig. 3, the V-belt type stepless speed changer 5's ❹ counter shaft 52 as a driven shaft is rotatably supported by the left case 4' of the case 4' [and the gear case cover 40C. The counter pulley 52 is provided with a driven pulley 70 via a centrifugal clutch 54. The driven pulley 70 includes a fixed pulley (fixed half) 71 and a movable pulley (movable half) 72. An annular v-belt 53 is provided on the drive pulley 6A and the driven pulley 7 for transmitting the rotation of the drive pulley 6 to the driven pulley 7A. When the number of revolutions of the driven pulley 70 exceeds the predetermined number of revolutions, the centrifugal clutch 54 provided between the driven pulley % ❿ and the counter shaft 52 is brought into a connected state, and the counter shaft 52 starts to rotate. The gear set (gearbox) 40G that decelerates the rotation of the countershaft 52 and transmits it to the rear axle 55 includes: a gear 52g disposed on the countershaft 52: a large diameter gear 141 meshing with the gear 52g; and a diameter smaller than the large gear a pinion gear 142 that rotates together with the large gear 141; and a large gear 143 that meshes with the pinion gear 142. The large gear 143 is attached to the rear wheel shaft 55 so as not to be rotatable relative thereto. Therefore, the rotation of the counter shaft 52 is decelerated and transmitted to the rear axle %, and the drive 099100069 17 201033503 is mounted on the rear axle 55 on the rear wheel 15R (Fig. j). The movable pulley 72 of the driven pulley 70 is mounted to be movable in the Korean direction with respect to the counter shaft 52. The movable pulley 72 is given a potential energy toward the fixed pulley 71 by the helical pin f 73 (four), and moves in the axial direction in accordance with the tension acting on the v-belt. That is, if the movable pulley 62 of the drive pulley 6 is displaced in the direction in which the groove width is reduced, the diameter of the v-belt 53 for the drive pulley 6 is increased, and the v-type wound around the driven pulley 7G The belt 53 is pulled toward the side of the drive pulley 60, and the tension acting on the v-belt 53 becomes large, and by the increase of the tension, the movable pulley 72 of the driven pulley 70 is displaced toward the square of the groove width, V The winding diameter of the skin (4) flank driven pulley 7G becomes small, and the counter shaft 52 rotates at a high speed. When the movable pulley of the drive pulley (9) is displaced in the direction in which the groove width is expanded, the Wei-Wing is reversed, and the countershaft 52 (four) is distorted. The drive unit 9 is actuated by the control of the control unit (not shown). When the output shaft 91 protrudes in the direction of the arrow X1 and the movable pulley slides in the magical direction in FIG. 4, the fixed pulley 61 and the movable pulley 62 are fixed. When the interval is enlarged, the v-belt 53 is wound with respect to the winding of the driving pulley 60, k becomes small, and the winding diameter of the V-belt 53 with respect to the driven pulley 70 becomes large, and the rear wheel 15R is rotationally driven at a low speed. To withstand high loads. On the contrary - the long-right output shaft 91 slides in the direction of the arrow X2 and the movable pulley 62 slides toward the X2 square β, κ, and the fixed belt 61 is narrowed by the interval of the movable pulley 62, ν 疋 ▼ wheel 6 丨" μ The ancient "fiber 4· ▼ 53 is larger in the winding position of the driving pulley 6〇, and the V-belt 53 is smaller in the winding diameter of the driven pulley 70, and the rear wheel 1SR is rotationally driven at a high speed. 099100069 201033503
根據如上所述之v型皮帶式無段變速機50，可獲得如 之作用效果。 T (a) 可動帶輪62包括支持於帶輪軸51之轂部63，名叙 戰;部 63於帶輪轴之半徑方向隔開設置有：於帶輪轴方向可移勤 地支持可動帶輪62之滑動部63a;及被傳達有帶輪軸51 扭矩之被傳達扭矩部64;因此藉由使帶輪軸方向之滑動與 扭矩之被傳達於半徑方向相隔開，可避免轂部之大型一、 ❹並緩和應力集中，可良好地進行可動帶輪之滑動及 達。 兔傳 即，當傳達大小相同之扭矩時，與習知相比，可減小作用 於扭矩傳達面之面壓。該面壓之減小可有助於扭矩傳達部2 小型化，進而可有助於v型皮帶無段變速機整體之小型化^ (b) 藉由設置與滑動面63a不同之扭矩傳達面料’可於同 一構件62形成滑動面63a及扭矩傳達面64，並減小施加至 ❺滑動面63a之負載。因此，無須對滑動© 63a供給油或滑脂 等。 (c) 數部63之被傳達扭矩部(扭矩傳達面64)藉由與設為無 法相對於帶輪轴旋轉之扭矩傳達部11〇相卡合而將帶輪軸 之扭矩傳達至可動帶輪62，扭矩傳達部110與被傳達扭矩 部64可沿帶輪軸之轴線方向相對移動，並藉由於帶輪軸之 旋轉方向抵接而傳達扭矩，因此即使於扭矩傳達部ιι〇與被 傳達扭矩部伴隨可動帶輪62之移動而相對移動之情形時， 099100069 19 201033503 亦可傳達帶輪軸之扭矩。 ⑷設為無法相對於帶輪轴辑之扭矩傳達部ιι〇係包 括輪輪51之半徑方向延伸之凸緣部111 ·，及-體地 111之軸線方向部分m，該轴線方向部分 料徑方向上較可動帶輪62中與帶輪軸5 0 可減小作用於扭矩傳達面64之面壓。 技術相比’ 扭矩傳小相同之扭矩時’與習知相比可減小作用於 110之小型化：=面壓之減小可有助於杻矩傳達部 之小型化。 有助於乂型皮帶無段變速機5〇磐發 (e)帶輪轴51舍杯4-/-*^产 於該大徑部5la ^ 、及經由階差部51d而殘置 〇 5lb ’扭矩傳達部盘mm持部的小裡部 件no之上述凸緣邱n 刀離之其他構件，讀構 且安裝於帶輪插秘可料輪62讀部幻中 而旋轉，因此與一體形成於帶而輪對於帶輪輪51 地製作扭矩傳達部㈣，且可將扭矩傳達：::定::易 無法相對於帶輪軸51而旋轉。 固疋為確實 099100069 20 201033503 (f)於扭矩__之減方㈣分li2雜⑽之扭 矩傳達面二之間’設置有合成樹脂製之緩衝構件Μ，因此 無須對扭㈣4面64供給㈣旨，並且村㈣噪 (g)扭矩傳達部110之轴線方向部分ιΐ2於轴線曰周圍設置 有複數個，因此扭矩傳達可變得更順暢，同時可更確實地減 小面壓。 ❹ ⑻於可動帶輪62之轂部63外周，經由轴承的而配置有 用於使該可動帶輪62滑動之卡合構件m，因此可精簡地 構成用於使可動帶輪62滑動之動力傳達系統。又，藉由縮 短轴方向長度並餘矩不傳達至卡合構件12g，可防止卡合 構件120之磨損。 以上，已朗本發明之實施形態，但本發明不受限於上述 實施形態’於本發明之主旨之範圍内可予以適當實施變形。 【圖式簡單說明】 ❹ ® 1係表示作為使財發明V型皮帶式無段變速機之一 實施形態之一例的速克達型二輪機車之侧視圖。 圖2係上述二滅車中包括v型皮帶式無段變速機之動 力單元之側視圖。 圖3係省略圖2局部之ηηπ剖視圖。 圖4係圖3之局部放大圖。 圖5係省略圖3局部v箭視圖。 圖6係表示扭矩傳達部11()之主要部分之分解立體圖。 099100069 21 201033503 【主要元件符號說明】 10 二輪機車 11 車架 llh 前管 11s 座架 12 樞軸 13 後避震器單元 14 前叉 15 轉向把手 15F 前輪 15R 後輪 16 座部 17 儲物箱 18 燃料箱 20 動力單元 30 引擎 30c 氣動閥用凸輪軸 3 Op 火星塞 31 曲柄轴箱 31b 軸承部 31c 曲柄轴 31e 曲柄軸箱蓋 099100069 22 201033503 31g 發電機 32 氣缸體 32c 連桿 32p 活塞 33 氣缸頭 33c 燃燒室 34 氣缸頭蓋 典 35 進氣管 35a 燃料供給裝置 35c 空氣淨化器 36 排氣裝置 40 變速箱（箱體） 40C 齒輪箱蓋 40G、94 齒輪箱 φ 4〇L 左箱體 、 40LC 側蓋 40R 右箱體 41 安裝部 ' 42 、 95 、 131 、 132 螺釘 50 V型皮帶式無段變速機 51 主軸（帶輪軸） 51a 大徑部 099100069 23 201033503 51b 支持部（小徑部） 51d 階差部 52 副軸 52g 齒輪 53 V型皮帶 53i 旋轉執跡内 54 離心式離合器 55 後輪軸 60 驅動帶輪 61 ' 71 固定帶輪 62、72 可動帶輪 63 轂部 63a 對向面（内周面；滑動部；滑動面) 64 扭矩傳達面（被傳達扭矩部） 65 、 112d 子L 66 緩衝構件 66a 内周壁部 66b 兩側壁部 66bl 外側面 66c 底壁部 66d 突起 67 圓筒構件 099100069 24 201033503According to the v-belt type stepless speed changer 50 as described above, the effect can be obtained. T (a) The movable pulley 62 includes a hub portion 63 supported by the pulley shaft 51, and the portion 63 is spaced apart from the radial direction of the pulley shaft to: support the movable pulley in the direction of the pulley shaft The sliding portion 63a of the 62; and the transmitted torque portion 64 that transmits the torque of the pulley shaft 51; therefore, by sliding the pulley shaft direction and the torque in the radial direction, the large portion of the hub can be avoided. And the stress concentration is alleviated, and the sliding and reaching of the movable pulley can be performed well. According to the rabbit, when the torque of the same magnitude is transmitted, the surface pressure acting on the torque transmitting surface can be reduced as compared with the conventional one. The reduction in the surface pressure contributes to the miniaturization of the torque transmitting portion 2, which in turn contributes to the miniaturization of the v-belt stepless speed changer. (b) The fabric is conveyed by providing a torque different from the sliding surface 63a. The sliding surface 63a and the torque transmitting surface 64 can be formed in the same member 62, and the load applied to the crucible sliding surface 63a can be reduced. Therefore, it is not necessary to supply oil or grease to the sliding © 63a. (c) The transmitted torque portion (torque transmission surface 64) of the number 63 is engaged with the torque transmitting portion 11A that is not rotatable with respect to the pulley shaft, and the torque of the pulley shaft is transmitted to the movable pulley 62. The torque transmitting portion 110 and the transmitted torque portion 64 are relatively movable in the axial direction of the pulley shaft, and the torque is transmitted by the abutment of the rotational direction of the pulley shaft. Therefore, even if the torque transmitting portion is accompanied by the transmitted torque portion When the movable pulley 62 moves relative to each other, 099100069 19 201033503 can also convey the torque of the pulley shaft. (4) It is assumed that the torque transmission portion ιι〇 is not included in the radial direction including the flange portion 111 of the wheel 51, and the axial direction portion m of the body 111, the axial direction portion of the material The surface pressure acting on the torque transmitting surface 64 can be reduced in the direction of the movable pulley 62 and the pulley shaft 50. The technique can reduce the miniaturization acting on 110 as compared with the conventional torque when the torque is the same as that of the conventional one: = the reduction in the surface pressure can contribute to the miniaturization of the torque transmitting portion. Helps the belt type beltless speed changer 5 bursts (e) Pulley shaft 51 round cups 4-/-*^ is produced in the large diameter portion 5la ^, and remains 〇5lb ' via the step portion 51d The flange member of the small-sized member no of the torque transmitting portion mm holding portion is read and attached to the reading portion of the pulley insertion/removable material wheel 62 to rotate, so that it is integrally formed with the belt. On the other hand, the wheel produces the torque transmitting portion (4) for the pulley 51, and the torque can be transmitted:::: It is not easy to rotate with respect to the pulley shaft 51.固固为为9999100069 20 201033503 (f) In the torque __ minus (four) points li2 (10) between the torque transmission surface 2 'provided with a synthetic resin cushion member Μ, therefore no need to twist (four) 4 faces 64 supply (four) And the village (four) noise (g) is disposed in the axial direction portion ι 2 of the torque transmitting portion 110 around the axis 曰, so that the torque transmission can be made smoother, and the surface pressure can be more reliably reduced. ❹ (8) The engagement member m for sliding the movable pulley 62 is disposed on the outer circumference of the boss portion 63 of the movable pulley 62 via the bearing, so that the power transmission system for sliding the movable pulley 62 can be simplified. . Further, by shortening the length in the axial direction and the residual moment is not transmitted to the engaging member 12g, the wear of the engaging member 120 can be prevented. The embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and modifications may be appropriately made within the scope of the gist of the invention. BRIEF DESCRIPTION OF THE DRAWINGS A ❹ ® 1 is a side view of a scooter type two-turbine vehicle as an example of an embodiment of a V-belt type stepless transmission. Fig. 2 is a side view of the power unit including the v-belt type stepless speed changer in the above two vehicles. Fig. 3 is a cross-sectional view showing a part of ηηπ of Fig. 2 omitted. Figure 4 is a partial enlarged view of Figure 3. Fig. 5 is a view showing a partial v arrow of Fig. 3 omitted. Fig. 6 is an exploded perspective view showing a main part of the torque transmitting portion 11 (). 099100069 21 201033503 [Description of main components] 10 Two-wheeled vehicle 11 Frame llh Front tube 11s Frame 12 Pivot 13 Rear shock absorber unit 14 Front fork 15 Steering handle 15F Front wheel 15R Rear wheel 16 Seat 17 Storage box 18 Fuel Box 20 Power unit 30 Engine 30c Pneumatic valve camshaft 3 Op Mars plug 31 Crank axle box 31b Bearing part 31c Crank shaft 31e Crank axle box cover 099100069 22 201033503 31g Generator 32 Cylinder block 32c Link 32p Piston 33 Cylinder head 33c Combustion Chamber 34 Cylinder head cover code 35 Intake pipe 35a Fuel supply device 35c Air purifier 36 Exhaust device 40 Gearbox (box) 40C Gearbox cover 40G, 94 Gearbox φ 4〇L Left case, 40LC Side cover 40R Right Enclosure 41 Mounting section '42, 95, 131, 132 Screw 50 V-belt type stepless speed changer 51 Spindle (with wheel axle) 51a Large diameter section 099100069 23 201033503 51b Support section (small diameter section) 51d Step section 52 deputy Shaft 52g gear 53 V belt 53i rotation in rotation 54 centrifugal clutch 55 rear axle 60 drive pulley 61 ' 71 Fixing pulleys 62, 72 Movable pulleys 63 Hub portion 63a facing surface (inner peripheral surface; sliding portion; sliding surface) 64 Torque transmitting surface (transmitted torque portion) 65, 112d Sub-L 66 Buffer member 66a Inner peripheral wall portion 66b Two side wall portions 66bl outer side surface 66c bottom wall portion 66d protrusion 67 cylindrical member 099100069 24 201033503
67a 圓筒構件67之一端部 67b 圓筒構件67之另一端部 68 雙螺帽 69 軸承 70 從動帶輪 73 螺旋彈簧 80 槽寬可變機構 90 驅動單元 91 輸出軸 91a 前端面 91b 滾珠螺桿（内螺紋） 91c 輸出軸91之至少一部分 91e 前端面 92 減速齒輪組 92e 最末段之齒輪 93 滾珠螺桿（外螺紋） 100 動力傳達部 110 扭矩傳達部 111 凸緣部 111a 圓板狀部分 112 軸線方向部分 120 卡合構件 099100069 25 201033503 121 卡合部 122 卡合環 123 卡合槽 130 連結構件 133 連結部 141 大徑之齒輪 142 小齒輪 143 大齒輪 c 鏈條 LI 線 M 馬達 Ml 馬達部 W 皮帶寬度 XI、X2 箭頭 099100069 2667a One end portion 67b of the cylindrical member 67 The other end portion 68 of the cylindrical member 67 Double nut 69 Bearing 70 Drive pulley 73 Coil spring 80 Groove width variable mechanism 90 Drive unit 91 Output shaft 91a Front end face 91b Ball screw ( Internal thread) 91c At least a part of the output shaft 91 91e Front end face 92 Reduction gear set 92e Last stage gear 93 Ball screw (external thread) 100 Power transmission portion 110 Torque transmitting portion 111 Flange portion 111a Disk portion 112 Axis direction Part 120 Engaging member 099100069 25 201033503 121 Engagement portion 122 Engagement ring 123 Engagement groove 130 Connecting member 133 Connecting portion 141 Large-diameter gear 142 Pinion 143 Large gear c Chain L1 line M Motor M1 Motor part W Belt width XI , X2 arrow 099100069 26