M414380 五、新型說明： 【新型所屬之技:術領域】 本創作係有關於自行車曲柄迴轉速感應磁鐵裝置之改良，尤指一 種可改善以往自行車曲柄迴轉速感應磁鐵須以魔鬼束帶綁在曲柄上之 方式的自行車曲柄迴轉速隱藏式感應磁鐵。 【先前技術】 自行車碼表中的迴轉率感測在自行車運動中扮演著很重要的功 能’國内外亦有多家碼表廠商針對此功能做設計，但一般市面上的自 行車曲柄迴轉速感應磁鐵皆以魔鬼束帶綁在曲柄上的方式為主，除了 影響自行車整體外觀外，使用久了易有走位或塵土沈積於魔鬼束帶上 之情形發生，造成許多自行車車主的不便。 綜之，如果將自行車曲柄迴轉速隱藏式感應磁鐵裝載於曲柄内側 的踏板軸心上，可用以減少自行車騎士在自行車曲柄迴轉速感應磁鐵 使用上的諸多不便之處。 【新型内容】 由於習知各家廠牌(SIGMA、CATEYE、TOPEAK)之自行車曲柄迴轉 速感應磁鐵安裝方式為使用魔鬼束帶綁於曲柄上，不但影響整體外 觀’魔鬼束帶上也易於卡·泥’也有踩踏時，因腳部碰觸而位移導 致無法感應之情況。所以申請人經實驗測試下，利用一有把手及六角 角錐之塑膠外殻包覆強力磁鐵，製成一造型簡單，不須使用魔鬼束帶 便可安裝於曲柄内側之踏板轴心上之裝置。 3 本創作係為-種具有造型簡單、隱密性高、安裝方便之自疒 柄迴轉速隱藏式感應磁鐵，其袭置包括： 之自仃車曲 強力磁鐵，包覆在-體成 型塑膠糊；-細歸卜殼，咖強力韻；—體成型娜 外殼上的六角型錐設計可將感應磁鐵固定於自行車踏板軸心内側的二 角孔内’其六角型錐雄膠包覆，雜現有自行車踏板產品規格分為 6刪及-體成翻膠外殼上的卿把手，利於將卡人踏板轴， 側的自行車曲柄迴轉速隱藏式感應磁鐵取出。 【實施方式】 本創作實施方式係以自行車曲柄迴轉速隱藏式感應磁鐵之六角 角錐塞入曲柄内側之踏板轴心的内六角螺絲孔内為例： 請同時參關2、3所祕為本_實施狀安裝圖，首先將六 二角錐3對準曲柄内側之踏板轴心的内六角螺絲孔並完整將六角角雜3 π全推入曲柄内側之踏板軸心的内六角螺絲孔。 進行自行車曲柄迴轉速隱藏式感應磁鐵退出動作時，僅抓住棋 型把手4向外侧拉出即可。 【圖式簡單說明】 第圖係本創作貫施例利用—強力磁鐵、一體成型塑膠外殼、六角型 錐、拱型把手之自行車曲柄迴轉速隱藏式感應磁鐵。 第二圖係本創作實施例之自行車曲柄迴轉速隱藏式感應磁鐵安裝圖。 第二圖係本創作實施例之自行車曲柄迴轉速隱藏式祕磁鐵退出圖。 第四圖係摘作實施例自行車曲柄迴轉賴藏式感應磁鐵剖視圖。 M414380 【主要元件符號說明】 1 強力磁鐵 2 一體成型塑膠外殼 3 六角型錐 31 六角型錐橡膠外層 4 拱型把手M414380 V. New Description: [New Technology: Field of Technology] This creation is about the improvement of the bicycle crankback speed induction magnet device, especially one that can improve the previous bicycle crankback speed induction magnet to be tied to the crank with a devil strap. The way the bicycle cranks back to the speed of the hidden induction magnet. [Prior Art] The slew rate sensing in the bicycle code table plays an important role in bicycle sports. There are also many code table manufacturers at home and abroad to design this function, but the bicycle crankback speed sensing magnet is generally available on the market. All of them are mainly tied to the crank by the devil's belt. In addition to affecting the overall appearance of the bicycle, it is easy to have a walking position or dust deposit on the devil's belt, which causes inconvenience to many bicycle owners. In summary, if the bicycle crankback speed-type induction magnet is mounted on the pedal shaft on the inner side of the crank, it can be used to reduce the inconvenience of the bicycle rider in the use of the bicycle crankback speed sensing magnet. [New content] Because the bicycle crankback speed induction magnets of various brands (SIGMA, CATEYE, TOPEAK) are mounted on the crank using the devil's belt, not only affects the overall appearance, but also the card is easy to buckle on the devil's belt. When the mud is also stepped on, it may not be sensed due to the displacement of the foot. Therefore, after the experiment, the applicant used a plastic case with a handle and a hexagonal pyramid to cover the strong magnet to make a device that is simple in shape and can be mounted on the pedal shaft inside the crank without using a devil strap. 3 This creative department is a kind of self-sliding speed-recovery induction magnet with simple shape, high concealment and easy installation. Its attack includes: self-twisting strong magnet, covered in body-shaped plastic paste ;-fine return shell, coffee strong rhyme; - body shape Na hexagonal cone design on the shell can be fixed in the inner corner of the bicycle pedal shaft inside the corner hole 'its hexagonal cone male rubber coating, miscellaneous existing The bicycle pedal product specification is divided into 6 and the body handle is turned into a clear handle on the outer casing of the plastic case, which facilitates the removal of the bicycle crankshaft back side speed hidden induction magnet. [Embodiment] The present embodiment is an example in which the hexagonal angle tap of the bicycle crankback speed-insensitive induction magnet is inserted into the hexagonal screw hole of the pedal shaft on the inner side of the crank: For example, please refer to the secrets of 2 and 3 at the same time. To implement the installation diagram, first align the hexagonal cone 3 with the hexagonal screw hole of the pedal shaft on the inner side of the crank and fully push the hexagonal angle 3 π into the hexagonal screw hole of the pedal shaft on the inner side of the crank. When the bicycle crank-return speed hidden type induction magnet is retracted, only the grip handle 4 is pulled out to the outside. [Simple description of the diagram] The figure is a simplified example of the use of a powerful magnet, a one-piece plastic casing, a hexagonal cone, and an arched handle. The second figure is a bicycle crankshaft rotational speed hidden induction magnet installation diagram of the present embodiment. The second figure is the exit diagram of the bicycle crankback speed hidden type secret magnet of the present embodiment. The fourth drawing is a cross-sectional view of the embodiment of the bicycle crank rotary absorbing induction magnet. M414380 [Main component symbol description] 1 Strong magnet 2 One-piece plastic case 3 Hexagon cone 31 Hexagon cone rubber outer layer 4 Arch handle