M366393 五、新型說明： 【新型所屬之技術領域】 本創作與運動器材有關，特別是關於一種運動器材的 皮帶傳動機構。 【先前技術】 目前絕大多數跑步機的跑步台大體結構都是在一架體 上設一長方形跑板，並在跑板的前、後二短側邊之外分別 樞設對應於左右轴向的一前滾輪及一後滚輪’又在前述二 滚輪之間繞套一覆蓋跑板的環狀跑帶，如此供使用者在跑 帶上進行原地走路、跑步之類的運動。 請參閱第5圖，在一般電動跑步機當中，用以驅轉跑 帶的傳動機構（80)通常包含有：一馬達（81)，設在跑步台 的架體（82)前端，其轉軸（83)對應於左右軸向；一第一皮 帶輪（84)，同軸固接在馬達（81)的轉軸（83); —第二皮帶 輪（85)，同軸固接在前滾輪（86)—端，直徑大於第一皮帶 輪（84); —環狀皮帶（87)，繞套在第一皮帶輪（84)及第二 皮帶輪（85)的周面上，藉以將馬達（81)出力降低轉速、提 - 高扭力傳遞至前滾輪（86)，使前滾輪（86)原地轉動而帶動 跑帶（88)循環繞轉。此外，為了讓動力傳遞穩定順暢，通 常會在前述二皮帶輪（84)(85)之間另以一壓帶輪（89)可滾 動地彈性抵壓在環狀皮帶（87)的外側面，使環狀皮帶（87) 維持適當的張力，同時增加環狀皮帶（87)與皮帶輪（84) (85)圓周的接觸角’藉此使環狀皮帶（87)較不易在皮帶輪 M366393 (85)(85)上打滑。 在第5圖所示的習知結構中，前述壓帶輪（89)是樞接 在一偏擺臂（91)的後端’而前述偏擺臂（91)前、後二端之 間的一預定部位藉一對應於左右軸向的樞轴（92)樞接在前 述架體（82)，且其前端與架體（82)之間連結一拉伸彈簧 (93) ’前述拉伸彈簧（93)的收縮彈力使得偏擺臂（91)的後 端具有向下偏轉的傾向，因而讓壓帶輪（89)由上往下彈性 地抵往環狀皮帶（87)。 第6圖顯示另一種習知的皮帶傳動機構（8〇’），其同樣 具有架體（82’）、第一皮帶輪（84,）、第二皮帶輪（85,）、環 狀皮帶（87,）、壓帶輪（89,）、偏擺臂（91，）及拉伸彈簧（93,） 等元件，而且同樣是利用拉伸彈簧（93，）的收縮彈力，使得 偏擺臂（91，）上的壓帶輪（89,）往下抵往環狀皮帶（87,）。較 大的不同點在於’本例中的偏擺臂（91，）是將其後端同軸樞 接在第二皮帶輪（85，）及前滾輪（86，）的樞軸（94)上，而壓 π輪（89 )則疋设在偏擺臂（91’）的前、後二端之間，藉此 可減少軸承、銅襯之類的樞軸構件，並且可提昇拉伸^箬 (93’）的效率（因為力臂較長）。 ” 當然，除了跑步機之外’其他像是固定式腳踏車、橢 圓機（elliptical)、踏步機、划船機等各種室内運動器材， 為了在平行二轉軸之間傳遞動力（例如將來自使用者的動 力提昇轉速之後帶動飛輪、渦流制動器、發電機#)，也常 會採用上述配有壓帶輪的皮帶傳動機構。 然而，習知的上述皮帶傳動機構具有如下缺點： M366393 -、以跑步機為例’在使用者每個腳步踩隸跑帶 上的瞬間’前述環狀皮帶（87)的緊邊（tightside;圖中底 側）的張力會加大，而鬆邊（slack side;圖中頂侧）的張力 會減小’此時’偏擺臂（91)會受拉伸彈簧（93)的彈力作用 而使壓帶輪（89)往下壓緊’直至力量平衡。不過，因為偏 擺臂（91)的樞軸部位具有磨擦力’所以前述壓緊時間教 長’可能造成ί哀狀皮f(87)因瞬間張力不足而、在古帶 ⑽⑽上打滑，產生傳動不穩定的現象皮^ 二、 承上，在運動過程中，前述偏擺臂（91)會不斷 地微幅偏擺，使壓帶輪（89)以一定壓力抵壓環狀皮帶 (87)。一段時日後，偏擺臂（91)的樞軸構件（例如銅襯）難 免會產生磨損，使得運作時持續有異音出現。 三、 理想上，前述偏擺臂（91)及前述壓帶輪（89)的 輛心應該都要平行於第一、第二皮帶輪（84)(85)的軸心， 以維持壓帶輪（89)周面與環狀皮帶（87)表面平行貼觸。揭 若製作精度或組裝精度發生較大偏差，使得壓帶輪（89)周 面與環狀皮帶（87)表面之間的平行度過低，則在運作時^ 會產生摩擦異音。 【新型内容】 有鑑於上述問題，本創作的主要目的在於提供—種運 動器材的皮帶傳動機構，能降低運作時可能產生的異音， 並維持動能傳遞的穩定度及順暢性，此外，其製作及級束 精度要求較低，可節省成本。 衣 M366393 為了達成前述目的，依據本創作提供的_較施 例’丽述勒n材的皮帶傳動機構主要包含 一 一皮帶輪、一第二皮帶輪、-環狀皮帶、-板簧組件及一 壓帶輪；前述第一及第-皮帶輪均可相 ^ 乐—皮▼輸杓j相對於前述架體以自 身軸心為轉軸原地旋轉，且前述二皮帶輪的軸心相互平 狀皮帶繞套在前述第一及第二皮帶輪的周面 也件Ιϋτί帶輪的動能傳遞至另一皮帶輪；前述板簧 右/石ί —板狀彈簧（ieaf spring)，前述板狀彈簧具 的一長度方向、一寬度方向及-厚度方向，前 長度方向的相對二端分別形成―固定端及-偏撓端，固 =端固以前述架體，偏撓端可㈣於固定端產生概沿厚 度方向的彈性⑽、以及以長度方向為軸的彈性扭轉；前 c以自身軸心為樞軸樞設在前述板簧組件的偏撓 ^ 軸心平行於前述二皮帶輪_心，X，前述壓帶輪 =在前述二皮帶輪之間，受前述板簧組件的彈力作用而以 其周面抵壓在前述環狀皮帶的外側面。 【實施方式】 睛先參閱第1圖及第2圖，本創作一較佳實施例的運 動器材的皮帶傳動機構（10)主要包含一架體（20)、一第一 皮帶輪（30)、一第二皮帶輪（40)、一環狀皮帶（50)、一板 簧組件（60)及一壓帶輪（7〇)。在此亦以應用在跑步機為例 進行說明’即’同於上揭習知結構，前述皮帶傳動機構（10) 裝配在跑步機的跑步台前端，用以將馬達（2)的動力由馬達 M366393 轉軸（4)傳遞至與其平行的前滾輪（6)，藉以帶動繞經前滾 輪（6)的跑帶(8)循環繞轉。前述馬達（2)及前述前滚輪（6) 均裝設在前述架體（20)(即跑步台的架體）上，而且，馬達 (2)的轉軸（4)及前滾輪（6)的軸心均對應於左右軸向（即跑 步台的寬度方向）。 必須先強調的是，本創作不限於應用在跑步機上傳遞 馬達動力’也可以應用在固定式腳踏車、橢圓機、踏步機 等運動器材上傳遞來自使用者的動力。 前述第一皮帶輪（30)同軸固接在前述馬達（2)的轉軸 (4)上，可隨馬達（2)轉軸（4)相對於架體（2〇)依自身軸心 (第一軸心）原地旋轉，作為傳動系統中的主動輪。前述第 二皮帶輪（40)位在第一皮帶輪（30)的正後方，同軸固接在 前述前滾輪（6)的轴桿（未編號）上’可同步地與前滾輪（6) 相對於架體（20)依自身軸心（第二軸心）原地旋轉，作為傳 動系統中的從動輪。因為第一及第二皮帶輪（3〇)(4〇)分別 同軸固接在馬達（2)的轉韩（4)及前滾輪（6)的軸桿，所以前 述一皮帶輪（30)(40)的轴心均對應於左右轴向，亦即第— 轴心及第二轴心相互平行。前述環狀皮帶（5〇)繞套在第一 及第二皮帶輪（30)(40)的周面上，可將第一皮帶輪（3〇)的 動能傳遞至第二皮帶輪（40)。在跑步機的例子中，第二皮 帶輪（40)的直徑（/圓周）通常大於第一皮帶輪（3〇)的直徑 (/圓周）預定倍數，藉以降低轉速、提高扭力。 在本實施例中，前述板簧組件（60)是由單一板狀彈#(leaf spring)構成，請搭配參閱第3圖，前述板狀彈簧是由適當鋼材製 7 M366393 成的長條板片，具有相互垂直的一Μ方向（圖巾L L方向）、一 見度方向（®巾w-w方向）及—厚度方向（圖中H_H方向）。板簧組 件(60)在前述長度方向的相對二端分別形成一固定端⑹及二偏 撓端（62)，並將前述固定端⑹）固定在前述架體⑽上。關於固 定方式’本例是在架體⑽）的側邊鎖固—固定架(21)，將板菁組 — 件(60)的固定端(61)其中一板面貼抵在前述固定架⑵）的一水平 ，板(未編號)頂面’並以-夾壓板⑽壓制其上，再縣干螺栓⑽ 往下（可穿過或不穿過板狀彈簧)鎖緊夹壓板(22)，藉此將板酱組 >件⑽的狀端(61)固絲架體⑽上。組裝後的板簧組件⑽ ^長度方向、寬度方向及厚度方向，分社致對應於左右轴向、 前後轴向及上下軸向，換言之，板簧組件⑽的寬度方向平行於 第一、第二皮帶輪(30)(40)的第一、第二軸心。在本例中，板箸 組件⑽）的固定端(61)相對在前、偏撓端(62)相對在後；可選擇 地，偏撓端（62)可能位在固定端（Μ)前方。 請參閱第3圖，基於板狀彈簧的特性，板簧組件(6〇)的偏撓 端（62)可相對於固定端（61)產生概沿前述厚度方向的彈性彎曲 (如圖中L’所代表的板面長侧邊變化）、以及以前述 的彈性扭轉(如圖中W，、W，，所代表的板面短侧邊變化）。… 前趙Φ輪⑽㈣雜^(帛三細）域純接在板菁組 件(60)的偏撓端(62)。關於樞接方式，本例是在板簧組件⑽的 偏繞端（62)底側鎖固或焊固一樞接座（71)，前述枢接座（71)具有 左右相對的二耳片（未編號），而壓帶輪(7〇)以其軸心對應於左右 軸向的方式樞接在前述二耳片之間。透過預先設定的尺^；、'空間 關係’壓帶輪(70)位在第-皮帶輪(30)及第二皮帶輪(4〇)之間的 8 M366393 環狀皮帶（50)上方（即鬆邊）’並且受到板簧組件（go)的彈力作 用，其周面底側由上往下抵壓在環狀皮帶（5〇)的外侧面，使環狀 皮帶(50)維持適當張力。 為了兼顧板簧組件(60)二端與架體(20)、壓帶輪(7〇)之間的 接合穩固，以及前述彈性彎曲、彈性扭轉的動作輕巧，本實施例 . 中的板簧組件(60)的相對二長側邊各在固定端（61)與偏撓端 . (62)之間形成一凹缺（63)，使得板簧組件(6〇)在長度方向上 的中間區域的寬度小於其在固定端（61)及偏撓端（62)的寬 • 度。本創作亦可將板簧組件（60)實施成由固定端（61)往偏 撓端（62)寬度逐漸窄縮，使固定端（61)相對較為粗壯，能 耐受長期使用的疲勞，而偏撓端（62)相對較為輕巧，讓壓 帶輪（70)與環狀皮帶（50)維持抵接。 另請參閱第4圖，本創作另一較佳實施例提供的皮帶 傳動機構（10’）同樣包含有架體（2〇，）、第一皮帶輪（3〇，）、 第二皮帶輪(40’）、環狀皮帶（50，）、板簧組件（6〇，）及壓帶 φ 輪（7〇 )，其中，板簣組件（6〇 )是由寬度相同但長度互異 的三片板狀彈簧（64)(65)(66)沿厚度方向相互疊合而成了 - $中，位在最下方的第一板狀彈簧（64)最長，疊壓其上的 '第一板狀彈簧（65)次之，最上方的第三板狀彈簧（66)最 短，而且二者（64)(65)(66)各將其中一短侧邊往固定端 (6Γ )的方向靠攏切齊，使得板簧組件（6〇,）在固定端（61，） 的厚度（三片板狀彈簧）大於其在偏撓端（62，）的厚度（僅一 片板狀彈簧），亦即固定端（61，）較為粗壯、偏挽端⑽，） 較為輕巧。 9M366393 V. New description: [New technical field] This creation is related to sports equipment, especially the belt drive mechanism of a sports equipment. [Prior Art] At present, the treadmills of most treadmills generally have a rectangular running board on one body, and are respectively pivoted to the left and right axes outside the front and rear short sides of the running board. A front roller and a rear roller are further wrapped around the two rollers to cover an endless running belt of the running board, so that the user can perform walking and running on the running belt. Referring to Figure 5, in a general electric treadmill, the transmission mechanism (80) for driving the running belt usually includes: a motor (81) disposed at the front end of the frame (82) of the running platform, and its rotating shaft ( 83) corresponding to the left and right axial direction; a first pulley (84) coaxially fixed to the rotating shaft (83) of the motor (81); - a second pulley (85) coaxially fixed to the front roller (86) - end, The diameter is larger than the first pulley (84); the annular belt (87) is wound around the circumferential surface of the first pulley (84) and the second pulley (85), thereby reducing the rotational speed of the motor (81) and raising The high torque is transmitted to the front roller (86), causing the front roller (86) to rotate in place to drive the running belt (88) to circulate. In addition, in order to make the power transmission stable and stable, a press belt pulley (89) is additionally elastically pressed against the outer side surface of the endless belt (87) between the two pulleys (84) (85). The endless belt (87) maintains the proper tension while increasing the contact angle of the endless belt (87) with the circumference of the pulley (84) (85), thereby making the endless belt (87) less prone to the pulley M366393 (85) ( 85) Sliding on. In the conventional structure shown in Fig. 5, the pinch roller (89) is pivotally connected to the rear end of a yaw arm (91) and between the front and rear ends of the yaw arm (91). A predetermined portion is pivotally connected to the frame body (82) by a pivot (92) corresponding to the left and right axial directions, and a tension spring (93) is coupled between the front end and the frame body (82). The contraction spring force of (93) causes the rear end of the yaw arm (91) to have a tendency to deflect downward, thereby causing the pinch roller (89) to elastically abut against the endless belt (87) from top to bottom. Figure 6 shows another conventional belt drive mechanism (8'') which also has a frame body (82'), a first pulley (84), a second pulley (85), and an endless belt (87, ), the pinch pulley (89,), the yaw arm (91,) and the tension spring (93,) and the like, and also the contraction spring force of the tension spring (93,), so that the yaw arm (91, The upper pinch roller (89,) is lowered downward to the endless belt (87,). The big difference is that the yaw arm (91, in this example) is pivotally connected to the rear end of the second pulley (85,) and the pivot (94) of the front roller (86). The pressure π wheel (89) is disposed between the front and rear ends of the yaw arm (91'), thereby reducing pivot members such as bearings and copper linings, and lifting the tension (93). ') efficiency (because the arm is longer). Of course, in addition to treadmills, other indoor sports equipment such as stationary bicycles, ellipticals, steppers, rowing machines, etc., in order to transmit power between parallel two shafts (for example, power from the user) After the speed is increased, the flywheel, the eddy current brake, and the generator #) are often used. The belt drive mechanism equipped with the pinch roller is also often used. However, the above-mentioned belt drive mechanism has the following disadvantages: M366393 - Taking the treadmill as an example' At the moment when the user steps on the running belt for each step, the tension of the tight side (tight side; the bottom side of the figure) of the aforementioned endless belt (87) will increase, and the slack side (top side in the figure) The tension will decrease. 'At this time' the yaw arm (91) will be pressed by the tension spring (93) to press the pinch roller (89) down until the force balance. However, because of the yaw arm ( 91) The pivotal part has a frictional force 'so the aforementioned pressing time of the instructor' may cause the sorrowful skin f(87) to slip on the ancient belt (10) (10) due to insufficient instantaneous tension, resulting in unstable transmission. , bearing, During the movement, the yaw arm (91) will continually yaw slightly, so that the pinch roller (89) presses the endless belt (87) with a certain pressure. After a while, the yaw arm (91) Pivot members (such as copper lining) will inevitably wear out, so that abnormal sounds will continue to occur during operation. 3. Ideally, the center of the yaw arm (91) and the aforementioned pinch roller (89) should be parallel to The axial centers of the first and second pulleys (84) (85) are arranged to maintain the circumferential surface of the pinch roller (89) in parallel with the surface of the endless belt (87). If the manufacturing precision or assembly precision is greatly deviated, If the parallelism between the circumferential surface of the pinch roller (89) and the surface of the endless belt (87) is too low, frictional noise will occur during operation. [New content] In view of the above problems, the main purpose of this creation It provides a belt drive mechanism for sports equipment, which can reduce the abnormal sound that may be generated during operation, and maintain the stability and smoothness of kinetic energy transmission. In addition, the production and beam precision requirements are lower, which can save costs. In order to achieve the above objectives, according to the _ provided by this creation The belt drive mechanism of the example 'Li Shulei n material mainly comprises a one-belt pulley, a second pulley, an endless belt, a leaf spring assembly and a pressure pulley; the first and the first pulleys can be matched. - the skin ▼ is rotated relative to the frame body with its own axis as the axis of rotation, and the axis of the two pulleys is flat with each other around the circumference of the first and second pulleys. The kinetic energy is transmitted to the other pulley; the leaf spring is the right/stone ε-shaped spring (ieaf spring), the longitudinal direction of the plate spring, the width direction and the thickness direction, and the opposite ends of the front length direction respectively Forming a “fixed end” and a “flexible end”, the solid=end is fixed to the frame body, and the deflected end can (4) produce an elastic (10) in the thickness direction at the fixed end and an elastic twist in the longitudinal direction; the front c is itself The pivot is pivoted at a pivoting axis of the leaf spring assembly parallel to the two pulleys X, X, and the pinch roller = between the two pulleys, by the elastic force of the leaf spring assembly Its circumference is pressed against the aforementioned ring skin The outer side of the belt. [Embodiment] Referring to Figures 1 and 2, the belt drive mechanism (10) of the sports equipment according to the preferred embodiment of the present invention mainly comprises a frame body (20), a first pulley (30), and a first belt pulley (30). The second pulley (40), an endless belt (50), a leaf spring assembly (60) and a pinch roller (7 〇). Here, the application is also applied to a treadmill as an example. The same as the above-mentioned structure, the belt drive mechanism (10) is mounted on the front end of the treadmill to power the motor (2) from the motor. The M366393 shaft (4) is transmitted to the front roller (6) parallel thereto, thereby driving the running belt (8) around the front roller (6) to circulate. The motor (2) and the front roller (6) are respectively mounted on the frame body (20) (ie, the frame of the running platform), and the rotating shaft (4) of the motor (2) and the front roller (6) The axes correspond to the left and right axial directions (ie, the width direction of the running table). It must be emphasized first that this creation is not limited to the application of motor power on a treadmill. It can also be applied to mobile equipment such as stationary bicycles, elliptical machines, steppers and the like to transmit power from the user. The first pulley (30) is coaxially fixed to the rotating shaft (4) of the motor (2), and can depend on the shaft (4) of the motor (2) relative to the frame body (2〇) according to its own axis (first axis) ) Rotate in place as the drive wheel in the drive train. The second pulley (40) is located directly behind the first pulley (30), and is coaxially fixed on the shaft (not numbered) of the front roller (6) to be synchronous with the front roller (6) relative to the frame The body (20) rotates in situ according to its own axis (second axis) as a driven wheel in the transmission system. Since the first and second pulleys (3〇) are respectively coaxially fixed to the shafts of the motor (2) and the front roller (6), the aforementioned pulley (30) (40) The axes of the axes correspond to the left and right axial directions, that is, the first axis and the second axis are parallel to each other. The aforementioned endless belt (5 turns) is wound around the circumferential faces of the first and second pulleys (30) (40) to transmit the kinetic energy of the first pulley (3 turns) to the second pulley (40). In the example of a treadmill, the diameter (/circle) of the second pulley (40) is generally larger than a predetermined multiple of the diameter (/circle) of the first pulley (3 ,), thereby lowering the rotational speed and increasing the torque. In this embodiment, the leaf spring assembly (60) is formed of a single leaf spring. Please refer to FIG. 3 together. The plate spring is a long strip made of a suitable steel material of 7 M366393. It has a direction perpendicular to each other (the direction of the towel LL), a direction of visibility (the direction of the towel ww), and a direction of the thickness (the direction of H_H in the figure). The leaf spring assembly (60) forms a fixed end (6) and a second deflecting end (62) at opposite ends of the longitudinal direction, respectively, and fixes the fixed end (6)) to the frame body (10). Regarding the fixing method 'this example is a side locking-fixing bracket (21) on the frame body (10), and one of the fixing ends (61) of the lining group-piece (60) is attached to the aforementioned fixing frame (2) a level, the top plate of the plate (unnumbered) is pressed against the nip plate (10), and the county dry bolt (10) is lowered (with or without a plate spring) to lock the nip plate (22). Thereby, the shape end (61) of the plate sauce group > member (10) is fastened to the frame body (10). The assembled leaf spring assembly (10) ^ length direction, width direction and thickness direction, the branch corresponds to the left and right axial direction, the front and rear axial direction and the upper and lower axial direction, in other words, the width direction of the leaf spring assembly (10) is parallel to the first and second pulleys (30) The first and second axes of (40). In this example, the fixed end (61) of the plate assembly (10) is opposite the forward and offset end (62); alternatively, the deflected end (62) may be positioned in front of the fixed end (Μ). Referring to FIG. 3, based on the characteristics of the leaf spring, the deflecting end (62) of the leaf spring assembly (6〇) can generate an elastic bending along the thickness direction with respect to the fixed end (61) (L' in the figure). The length of the side of the board is changed, and the above-mentioned elastic torsion (when W, W, as shown in the figure, the short side of the board surface changes). ... The front Zhao Φ wheel (10) (four) miscellaneous ^ (帛 three fine) domain is purely connected to the deflection end of the sapphire component (60) (62). Regarding the pivoting manner, in this example, a pivoting seat (71) is locked or welded to the bottom side of the biased end (62) of the leaf spring assembly (10), and the pivoting seat (71) has two ears (left and right opposite). Not numbered), and the pinch roller (7〇) is pivotally connected between the aforementioned two ears in such a manner that its axis corresponds to the left and right axial directions. Through the preset ruler;, the 'space relationship' pinch roller (70) is located above the 8 M366393 endless belt (50) between the first pulley (30) and the second pulley (4〇) (ie, the loose edge) And being subjected to the elastic force of the leaf spring assembly (go), the bottom side of the circumferential surface is pressed against the outer side surface of the endless belt (5 〇) from the top to the bottom to maintain the proper tension of the endless belt (50). In order to balance the joint between the two ends of the leaf spring assembly (60) and the frame body (20) and the pinch roller (7〇), and the aforementioned elastic bending and elastic twisting, the leaf spring assembly in this embodiment. The opposite long sides of (60) form a recess (63) between the fixed end (61) and the deflecting end (62), so that the leaf spring assembly (6〇) is in the middle of the length direction. The width is less than the width of the fixed end (61) and the deflecting end (62). The creation can also implement the leaf spring assembly (60) to gradually narrow the width from the fixed end (61) to the deflecting end (62), so that the fixed end (61) is relatively thick and can withstand the fatigue of long-term use, and The deflecting end (62) is relatively light and allows the pinch roller (70) to abut against the endless belt (50). Referring to FIG. 4, another preferred embodiment of the present invention provides a belt transmission mechanism (10') which also includes a frame body (2〇,), a first pulley (3〇,), and a second pulley (40'). ), endless belt (50,), leaf spring assembly (6〇,) and pressure belt φ wheel (7〇), wherein the plate 篑 assembly (6〇) is a three-plate shape with the same width but different lengths The springs (64) (65) (66) are superposed on each other in the thickness direction - in the middle, the first plate spring (64) at the lowest position is the longest, and the first plate spring is superposed thereon ( 65) Secondly, the uppermost third plate spring (66) is the shortest, and the two (64) (65) (66) each close one of the short sides toward the fixed end (6 Γ), so that The thickness of the leaf spring assembly (6〇,) at the fixed end (61,) (three plate springs) is greater than the thickness of the deflecting end (62,) (only one plate spring), that is, the fixed end (61) ,) relatively thick, partial pull (10),) relatively light. 9
M366393 點本創作提供的㈣器材的皮帶傳動機構具有如下優 -、相較於習知結構中的偏„(91) 簧組件⑽的前述彈性彎曲動作反應較為迅迷，^作’板 狀皮帶⑽的張力降低時（特別是像使用者^當環 步，每當腳步踩落在跑帶上的瞬間），壓帶輪步台上跑 的時間内壓緊皮帶⑽，使其維持駭張力^在較短 =⑽财易在皮雜⑽）⑽上㈣’細較為= 二、因為沒有類似習知結構中的偏擺臂（91)樞軸構 件，所以在運作中不會產生異音。 三、 因為板簧組件（60)的前述彈性扭轉動作可以吸 收壓帶輪（70)周面與環狀皮帶⑼）表面之間的角度偏差， f以縱使在製作及纟4上的精度不是很高，壓帶輪（7〇)也 能與環狀皮帶（5〇)保持平行抵接，較不會錢磨擦異音。 四、 板簧組件（60)本身的成本較低。 10 M366393 f圖式簡單說明j 第1圖是本創作一較佳實施例的立體圖； 第2圖是本創作一較佳實施例的平面圖；M366393 The belt drive mechanism of the (4) equipment provided by this creation has the following advantages - the above-mentioned elastic bending action reaction of the (91) spring assembly (10) in the conventional structure is more and more fascinating, and the 'plate-shaped belt (10) When the tension is lowered (especially when the user is in the loop, whenever the footsteps are on the running belt), the belt (10) is pressed during the running time of the belt pulley step to maintain the tension. Shorter = (10) Cai Yi in the plead (10)) (10) (4) 'fine comparison = 2, because there is no yaw arm (91) pivot member in the similar structure, so there will be no abnormal sound during operation. Because the aforementioned elastic torsional action of the leaf spring assembly (60) can absorb the angular deviation between the circumferential surface of the pinch roller (70) and the surface of the endless belt (9), f, so that the precision in the production and the 纟4 is not very high, The pinch roller (7〇) can also be kept in parallel with the endless belt (5〇), which is less likely to rub the noise. Fourth, the leaf spring assembly (60) itself has a lower cost. 10 M366393 f Simple drawing Description j Figure 1 is a perspective view of a preferred embodiment of the present invention; Figure 2 is a comparison of the present creation Plan view of the embodiment;
以及 第3圖是本創作—較佳實施例中的板狀彈簧的 同時示意其彈性彎曲及彈性扭轉的方向； ，4圖是本創作另一較佳實施例的立體圖； 第5圖疋-種習用的跑步機皮帶傳動機構的平面圖； 第6圖是另-種制的跑步機皮帶傳動機構的平面 【主要元件符號說明】 4 馬達轉軸 8 跑帶 20架體 22夾壓板 3〇第一皮帶輪 5〇環狀皮帶 61固定端 63凹缺 65第二板狀彈簧 70壓帶輪 2馬達 6前滾輪 10皮帶傳動機構 21固定座 23螺栓 40第二皮帶輪 6 0板酱組件 62偏撓端 64第一板狀彈簧 66第三板狀彈簧 71拖接座And Fig. 3 is a perspective view showing the direction of elastic bending and elastic twisting of the plate spring in the preferred embodiment; and Fig. 4 is a perspective view of another preferred embodiment of the present invention; Plan view of the conventional treadmill belt drive mechanism; Fig. 6 is the plane of the other treadmill belt drive mechanism [main component symbol description] 4 motor shaft 8 running belt 20 frame 22 clamping plate 3 〇 first pulley 5 〇 annular belt 61 fixed end 63 recessed 65 second plate spring 70 pressure pulley 2 motor 6 front roller 10 belt transmission mechanism 21 fixing seat 23 bolt 40 second pulley 6 0 plate sauce assembly 62 deflection end 64 first Plate spring 66 third plate spring 71 drag seat