M411566 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種旋轉狀態檢測裝置，特別係關於一種 檢測自行車之輪殼旋轉狀態之自行車用之旋轉狀態檢測裝 置。 【先前技術】 對於自行車而言，為顯示車輪旋轉數或速度等旋轉狀 態’有時會安裝周波計。為於周波計顯示旋轉狀態，需要 獲取表示車輪旋轉數等訊息之信號。為獲得表示此種訊息 之信號，而考慮檢測輪殼主體之相對於輪殼轴之旋轉數。 例如於專利文獻丨中揭示有一種藉由檢測輪殼主體之旋轉 數而檢測速度之電路。 上述專利文獻1所揭示之電路係使用自自行車輪殼中内 置之發電機提供之電力，而輸出速度檢測用信號。具體而 s，利用二極體抽取發電機輸出中之半波（一側半週期）， 同時將上述二極體之輸出輸入至施密特電路。然後，自施 松特電路輸出速度檢測用脈衝信號。 又，於專利文獻2中揭示有一種自行車用速度計，其利 用輪殼内置型發電機之輸出作為電源，且具備根據發電機 輸出波形而檢測速度之檢測機構。 [先前技術文獻] [專利文獻] [專利文獻1]曰本專利特開2002-281691號公報 [專利文獻2]曰本專利特開平6_18537號公報 M411566 【新型内容】 [新型所要解決之問題] 如上所述，作為檢測輪殼主體之相對於輪殼軸之旋轉數 之構成，如專利文獻！及2所示般，先前提供有一種利用發 電機輸出而進行檢測之構成1且，將所得之速度檢測用 信號經由配線輸入至速度計等中所設之微電腦。 然而，内置有發電機之輪殼係旋轉構件，為自上述旋轉 構件導出配線並將其連接至微電腦，而使得構成變得複 雜。又，配線有可能被切斷。 本創作之課題係於内置有發電機之自行車用之輪殼中， 能夠藉由簡單構成、且無配線切斷地檢測輪殼主體之旋轉 數。 [解決問題之技術手段] 第1技術方案之自行車用之旋轉狀態檢測裝置係對自行 車之輪殼旋轉狀態進行檢測者，其具有可安裝於上述輪殼 上之發電部及電路部’且電路部具有檢測部及訊息發送 部。檢測部係㈣發電部之電力而工作，檢測輪殼體之旋 轉狀態。訊息發送部藉由無線而發送表示由檢測部檢測出 之旋轉狀態之資訊。 此處，當自行車處於行#狀態時，#_利用發電部之電 力而工作之檢測部來檢測輪殼體之旋轉狀態。然後，訊息 發送部將表示上述檢測出之旋轉狀態之資訊藉由無線而發 送至例如周波計等中所設之微電腦。 上述裝置係藉由無線而發送表示旋轉狀態之訊息，故無 M411566 需電路部與顯示裝置等之間之配線。因此，構成變得簡 單’且不存在先前裝置中之配線切斷之類之問題。又檢 測部係利用發電部產生之電力而工作，故可穩定地供給電 力，從而可始終準確地檢測旋轉狀態。又，發電部及電路 部係可安裝於輪殼上，故可縮短配線而精簡地構成裝置。 第2技術方案之自行車用之旋轉狀態檢測裝置係如第^技 術方案之裝置’其中電路部係固定於輪殼軸上。 此處，由於電路部係固定於輪殼轴上，故裝置可精簡地 構成。 第3技術方案之自行車用之旋轉狀態檢測裝置係如第2技 術方案之裝置，其中電路部係位於輪殼轴之轴方向端部而 固疋於輪殼轴上。 s亥情形時’可容易地組裝電路部。 第4技術方案之自行車用之旋轉狀態檢測裝置係如第1技 術方案之裝置’其中電路部具有包含檢測部及訊息發送部 之電路本體、用以將電路本體固定於輪殼軸上之固定構 件、及用以覆蓋電路本體之護罩構件。 此處，可相對於輪殼軸而容易地裝卸電路本體。又，可 利用護罩構件而保護電路本體遠離灰塵等。 第5技術方案之自行車用之旋轉狀態檢測裝置係如第*技 術方案之裝置，其中固定構件係由金屬形成，且護罩構件 係由合成樹脂形成。 此處，由於固定構件係由金屬而形成，故可將電路本體 牢固地以於輪殼輪上，且能夠提高固定構件之強度。此 M411566 外’由於護罩構件係由合成樹脂而形成，故可抑制對電路 本體之電波干擾。 第6技術方案之自行車用之旋轉狀態檢測裝置係如第4或 第5技術方案之裝置，其中護罩構件之外徑係與旋轉軸垂 直之方向上之輪殼體之最大外徑以下，且電路本體係配置 於固定構件與護罩構件之間。 此處’可將裝置設為與輪殼產生整體感之形狀，從而可 精簡地構成。 第7技術方案之自行車用之旋轉狀態檢測裝置係如第1技 術方案之裝置，其中檢測部係基於發電部之輸出信號而檢 測旋轉狀態。 此處，由於旋轉狀態係利用發電部之輸出信號而加以檢 測，故無需磁鐵等特別元件便可檢測旋轉狀態。 第8技術方案之自行車用之旋轉狀態檢測裝置係如第【技 術方案之裝置’其中檢測部具有安裝於輪殼軸及輪殼體中 之任-者上之至少_個磁鐵、以及安裝於輪殼轴及輪殼體 中之另-者上且作為磁力感測器之霍耳元件。而且，上述 檢測部基於來自磁力感 7 4而益之輸出尨號而檢測旋轉狀態。 此處’上述檢測部係利用安裝於輪殼轴及輪殼體上之磁 鐵及霍耳元件來檢測旋轉狀態。 第9技術方案之自行車 皁用之叙轉狀態檢測裝置係如第1技 術方案之裝置，兑φ森φ 穿卸。 八 電°卩及電路部設置成相對於輪殼可 該情形時，可將本裝置後附加於自行車上。 M411566 第10技術方案之自行車用之旋轉狀態檢測裝置係如第9 技術方案之裝置中發電部及電路部可安褒於輪殼輪之 轴方向端部。 第11技術方案之自行車用之輪殼係具備根據第丨至第1〇 技術方案中任—技術方案之自行車用之旋轉狀態檢測裝 置。 [創作效果] 如上所述之本創作係藉由無線而發送表示旋轉狀態之資 訊，故無需電路部與顯示裝置等之間之配線。又，檢測部 係利用發電部產生之電力而動作，故可穩定地供給電力， 從而可始終準確地檢測旋轉狀態。 【實施方式】 [輪殼之整體構成] 圖1表示本創作之一實施形態之自行車用之輪殼丨之構 成。上述輪殼1與輪胎、輪圏及輪幅一併構成自行車之前 輪’且安裝於前叉（未圖示）之前端。 輪殼1具有輪殼轴2、及輪殼主體（輪殼體輪殼轴2之 兩知部可與則叉結合。輪殼主體3係配置於輪殼轴2之外周 侧，藉由一對軸承4、5而旋轉自由地安裝於輪殼軸2上。 又’上述輪殼1上設有對輪殼主體3之旋轉狀態進行檢測之 旋轉狀態檢測裝置6。 [輪殼轴] 輪殼軸2形成為筒狀，圖1中除形成左右之第1端部及第2 端部（以下將輪殼轴2之軸方向左側之端部記做「第i端 M411566 部」，將右側端部記做「第2端部」）以外，於外周面還形 成有第1外螺紋部2a。又，圖1中於第1端部之外周面形成 有直检比第1外螺紋部2a更小之第2外螺紋部2b。上述第2 外螺紋部2b上螺合有螺帽構件8，且螺帽構件8之外周面安 裝有其中一軸承4。於軸承4之輪殼轴方向外側（圖丨中左 側），螺帽構件8上形成有第i階差部，上述第}階差部接觸 於軸承4之内輪，阻止軸承4向輪殼軸方向外側移動。 又，於輪殼軸2之第2端部之内周面形成有内螺紋部&。 上述内螺紋部2c上螺合有螺釘構件9。再者，另—軸承5係 安裳於輪殼轴2之第2端部之外周面。軸承5之輪殼轴方向 外側（圖1右側），於輪殼軸2之第2端部形成有第2階差部， 上述第2階差部接觸於軸承5之内輪，阻止軸承5向輪殼軸 方向外侧移動。 圖2將輪殼軸2取出後表示上述輪殼軸2之部分。如上述 圖2所示，於輪殼軸2之第2端部之輪殼轴2之軸方向内側 (第1端部侧），形成有自内周部空間貫通至外周側之配線用 孔2d。進而，於輪殼軸2之第2端部之内周面之螺合有螺釘 構件9之部分，形成有用以收納配線之狹縫2e。狹縫“形 成為沿輪殼轴2之轴方向而於内側開口，且具有自輪殼軸2 之第2端部之端面起，於輪殼轴2之軸方向越過内螺紋部仏 之長度。又，狹缝2e右側之端部係於外周側開口。 [輪殼主體] 如圖1所示’輪殼主體3係筒狀構件，其以外徑自中央部 起朝左右之第1端部3a及第2端部3b而逐漸變大之方式擴展 M411566 (P4L2-3)。而且，於兩端部3a、3b安裝有輪幅1〇之端部（圖 1中僅表示了第2端部3b側之輪幅卜如上所述，上述輪殼 主體3係使輪殼軸2貫通其内部，並藉由一對軸承4、5而旋 轉自由地支撐於輪殼軸2上。輪殼主體3中，於軸承4之輪 殼轴2之軸方向内側形成有接觸於轴承4之外輪之第3階差 部，於轴承5之輪殼軸2之轴方向内側形成有接觸於軸承5 之外輪之第4階差部。藉由將螺帽構件8安裝於輪殼軸2 上，於輪殼轴2之第丨及第2階差部與輪殼主體3之第3及第4 階差部之間，分別夾持有軸承4、5，以阻止轴承4、5向輪 忒軸方向移動，輪殼主體3藉由軸承4、5而穩定且可旋轉 地支撐於輪殼軸2上。再者，於輪殼主體3之第〗端部“之 端面安裝有護罩構件U。 [旋轉狀態檢測裝置] 旋轉狀態檢測裝置6具有作為發電部之發電機15、及電 路邛16。發電機15係配置於輪殼軸2與輪殼主體3之間。而 且，電路部16係固定於輪殼軸2之第2端部。 <發電機> 圖3係表示發電機15之整體外觀之立體圖。發電機15旦 有筒狀磁體18、及筒狀内側固定單元19，上述磁體Μ係與 軸^5相鄰接而配置於軸承5之輪殼軸]之軸方向内侧，且 於輪殼主體3之内周面’·上述内側固定單元】9與磁體 18相對向而配置於磁體18之内周部。 -磁體_ 磁體18係包括後磁軛22及複數個磁鐵23。後磁㈣形成 M411566 為筒狀，且固定於輪殼主體3之内周面。又，複數個（例如 4個）磁鐵23分別形成為圓弧狀，且固定於後磁軛22之内周 面。複數個磁鐵23分別以等間隔交替地形成N極與s極。 -内側固定單元- 圖4係内側固定單元19之分解立體圖。如圓4所示，内側 固疋早元19具有请狀之線圈組裝體24(圖4中省略線圈）、及 左右之定子磁軛25、26。 線圈組裝體24具有線軸28及捲繞於線軸28上之線圈 29(參如、圖1)。線轴28具有外周捲繞有線圈之筒狀主體部 28a、及形成於主體部28a之輪殼轴方向兩端部之第！及第2 凸緣28b、28c。於各凸緣28b、28c之外周部前端，分別形 成有向輪殼軸方向外侧突出之複數個突起28d、28e。設置 上述複數個突起28d、28e之目的在於，防止線圈組裝體 相對於左右之定子磁輛25、26而向旋轉方向偏移。 左右之定子磁軛25、26係以包圍線圈組裝體24周圍之方 式而設置’且配置成彼此相對向。又，各定子磁軛25、26 係配置於磁鐵23與線圈組裝體24之間。各定子磁輛25、26 具有圓板狀部25a、26a、及複數個磁極片25b、26b。於圓 板狀部25 a、26a之外周端形成有複數個凹部。於上述複數 個凹部中之數個部位分別卡合有線軸28之複數個突起 28d、28e。複數個磁極片25b、26b自圓板狀部25a、26a之 未形成凹部之部分起沿輪殼軸2之抽方向而向另一圓板狀 部25a、26a側延伸。而且’如圖5所示，左右之定子磁輥 25、26以彼此之磁極片25b、26b於圓周方向上不同之方 M411566 式，而配置於線圈組裝體24周圍。 再者，如圖6所示，於線軸28之凸緣28b、及左定子磁軛 25之圓板狀部25a處形成有孔28f、25 c。上述孔28f、25c係 用以使與線圈29電性連接之配線藉由之孔。 如圖1所示，如上所述之内側固定單元19係分別藉由螺 合於輪殼轴2之第1外螺紋部2&之一對安裝螺帽3〇a、3〇b， 以夾持於一對安裝單元30a、30b之間之方式，無法旋轉地 固定於輪殼轴2上。 <電路部> 電路部16於圖1中係固定於輪殼軸2之第2端部。如圖1所 示’上述電路部16具有安裝於輪殼軸2之第2端部之基板底 座（固定構件）3 2、支撐於基板底座32之電路本體33、及覆 蓋電路本體33之護罩構件34。 -基板底座- 以下說明基板底座32與輪殼軸2之安裝構造。 圖7係沿輪殼軸方向觀察輪殼軸2之第2端部之視圖。根 據上述圖7可明瞭，輪殼轴2之第2端部係平面狀切割三邊 36b、36c、36d而僅保留一邊36a。即’形成為大致正方形 狀，僅一邊3 6a為圓狐狀。 圖8係自安裝於輪殼軸2之該側觀察基板底座32(圖1左 側）之視圖。基板底座32係於輪殼轴方向上具有特定厚度 之大致長方體形狀。上述基板底座32係由鋁合金等金屬材 料而形成。而且，於基板底座32之輪殼轴2之軸方向内側 (圖1左側）之端面，形成有於輪殼轴方向上具有特定深度之 M411566 開口 32a。上述開口 32a之形狀與輪殼軸2之第2端部所形成 之安裝部之形狀相同，且上述開口 32&上可嵌合輪殼軸2之 第2端部。此外，於基板底座32之輪殼軸方向外側（圖1右 侧）之端面，形成有與開口 32a相連、且於輪殼轴2之軸方 向上具有特定深度之圓形孔32b。上述孔32b可使螺釘構件 9之外螺紋部貫通《螺釘構件9貫通孔3213後安裝於輪殼軸2 上。基板底座32於輪殼轴2之轴方向上係夹持並固定於螺 釘構件9之一部分與輪殼軸2之第2端部之間。 又’如圖9所示’於基板底座32上夾持孔32b而形成有矩 形狀之凹部3 2c、3 2d，同時形成有將上述凹部3 2c、3 2d加 以連接之一對槽32e、32f。進而，於一對槽32e ' 32f之徑 方向外側’以夾持孔32b而對稱配置一對内螺紋部32g、 32h。再者’圖9係拆下護罩構件34後，自輪殼轴2之轴方 向外側（圖1右側）觀察安裝於輪殼轴2上之基板底座32之視 圖。 -電路本體- 如圖9所示’電路本體33具有充電用電容器35、基板 36、及將充電用電容器35與基板36加以連接之一對配線 3 7a、37b。充電用電容器35係收納於基板底座32之其中一 凹部32c内，基板36係收納於基板底座32之另一凹部32d 内。而且，一對配線37a、37b分別係配置於一對槽326、 32f 内。 如圖10所示’於基板36上構成有驅動電壓供給部4〇、檢 測輪殼主體3之相對於輪殼轴2之旋轉數之檢測部41、及藉 -12· M411566 由無線而發送上述檢測部41之檢測結果之訊息發送部42。 檢測部4 1及訊息發送部42係利用驅動電壓供給部4〇之電壓 而動作。又，檢測部41係基於發電機1 5之輸出信號而檢測 輪殼主體3之旋轉數。訊息發送部42將檢測部41所得之旋 轉數資訊發送至周波計（未圖示）中所設之微電腦。 -護罩構件- 如圖1所示，護罩構件34係用以覆蓋基板底座32及電路 本體33之構件，其具有圓板狀部34a與外周筒狀部34b。圓 板狀部34a覆蓋電路本體33之輪殼軸2之軸方向一側。圓板 狀部34a接觸於基板底座32之輪殼軸2之轴方向其中一面， 並堵住基板底座32之凹部32b、32c及槽32e、3 2f之於輪殼 轴方向上之其中一開口。又，外周筒狀部3仆覆蓋基板底 座32及電路本體33之外周部。上述護罩構件34係由合成樹 脂形成，以便不對電路本體33十構成之訊息發送部42造成 電波干擾，並且藉由未圖不之螺釘構件而固定於基板底座 32之内螺紋部32g，32h。再者，上述護罩構件34之外徑形 成為與輪设1之旋轉軸垂直之方向上之輪殼主體3之最大外 徑以下。此處，輪设主體3之一端部之外周面與護罩構件 34之外周面形成為具有大致相同之外徑。 [模塊電路圖] 圖10係本實施形態之旋轉狀態檢測裝置之模塊電路圖。 即’上述模塊電路圖係將發電機15及電路本體33具體化加 以表現。 <驅動電壓供給部> -13. M411566 驅動電壓供給部40具有全波整流電路45、過電壓保護電 路46、第1調節器47、充電用電容器35、及第2調節器的。 全波整流電路45係由使用4個二極體之橋接電路而形 成。上述全波整流電路45之輸出側連接有過電壓保護電路 46及第1調節器47 *過電壓保護電路46係由曾納二極體構 成。藉由上述過電壓保護電路而將發電機電壓限制於固定 值以内。因此，可利用低電壓、低耐壓之二極體構成全波 整流電路45，低速時之充電特性提昇。第i調節器47係將 全波整流電路45之輸出調整成特定電壓、例如3 3 v之電 路。 再者’第1調節器47係利用調節器〇n/〇ff電路50而控制 接通、斷開。調節器ΟΝ/OFF電路50係包含二極體D1、電 容器ci及電阻R1之電路，停車時斷開第1調節器47，抑制 停車時之第1調節器47之耗電。更詳細而言，行駛中藉由 二極體D1對發電機15之波形進行檢波，利用其輸出對電容 器ci充電而使第！調節器47工作。又，停車時藉由電阻ri 將電谷器C1之電荷逐漸放電，經過特定時間後第i調節器 47斷開。 充電用電容器35及2第2調節器49係連接於第1調節器47 之輸出側。為減小基板尺寸，充電用電容器35係使用電容 】之電谷器。此處’若使用小容量之充電用電容器 則 訊息發送部42發送信號之瞬間之電源電壓產生變動（下 降）°因此，將用以減輕電壓波紋之電路52設置於充電用 電谷器35之輸出側。上述波紋減輕用電路52係由2個電容 M411566 器而構成。 此處，將充電用電容器35之充電電壓設為例如3·3 v， 利用第2調節器49使上述㈣穩定後將其作為檢測部似 訊息發送部42之電源電麗故去M411566 V. New type description: [Technical field to which the new type belongs] This creation relates to a rotation state detecting device, and more particularly to a rotation state detecting device for a bicycle for detecting a rotation state of a wheel housing of a bicycle. [Prior Art] For bicycles, a cycle meter is sometimes installed to display a rotational state such as the number of wheel rotations or speeds. In order to display the rotation status of the cycle meter, it is necessary to obtain a signal indicating a number of rotations of the wheel or the like. To obtain a signal indicative of such a message, it is contemplated to detect the number of rotations of the wheel housing body relative to the wheel housing axis. For example, in the patent document, there is disclosed a circuit for detecting the speed by detecting the number of rotations of the wheel housing main body. The circuit disclosed in the above Patent Document 1 uses a power supplied from a generator built in a bicycle wheel housing to output a signal for speed detection. Specifically, the diode is used to extract a half wave (one half cycle) of the generator output, and the output of the diode is input to the Schmitt circuit. Then, the pulse signal for speed detection is output from the Schönsert circuit. Further, Patent Document 2 discloses a bicycle speedometer which uses an output of a wheel house built-in type generator as a power source and a detecting means for detecting a speed based on a generator output waveform. [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2002-281691 [Patent Document 2] Japanese Patent Laid-Open No. Hei 6-18537A No. M411566 [New content] [New problem to be solved] As a configuration for detecting the number of rotations of the wheel housing main body with respect to the wheel housing shaft, as in the patent literature! As shown in Fig. 2, a configuration 1 for detecting the output of the generator is provided, and the obtained speed detecting signal is input to the microcomputer provided in the speedometer or the like via the wiring. However, the wheel housing type rotating member incorporating the generator converts the wiring from the above rotating member and connects it to the microcomputer, so that the configuration becomes complicated. Also, the wiring may be cut. The subject of this creation is in a wheel housing for a bicycle in which a generator is built, and the number of rotations of the wheel housing main body can be detected by a simple configuration without cutting off the wiring. [Means for Solving the Problem] The rotation state detecting device for bicycle according to the first aspect of the invention detects the rotation state of the wheel housing of the bicycle, and has a power generation unit and a circuit unit 'which can be attached to the wheel housing, and the circuit unit There is a detection unit and a message transmission unit. The detection unit operates (4) the power of the power generation unit to detect the rotation state of the wheel housing. The message transmitting unit wirelessly transmits information indicating the state of rotation detected by the detecting unit. Here, when the bicycle is in the line # state, the detection unit that operates by the power of the power generation unit detects the rotation state of the wheel housing. Then, the message transmitting unit transmits the information indicating the detected rotation state to the microcomputer provided in, for example, the cycle meter or the like by wireless. Since the above device wirelessly transmits a message indicating the state of rotation, the M411566 does not require wiring between the circuit portion and the display device. Therefore, the configuration becomes simple' and there is no problem such as wiring cut in the prior device. Further, since the detection unit operates by the electric power generated by the power generation unit, the power can be stably supplied, and the rotation state can be accurately detected at all times. Further, since the power generation unit and the circuit unit can be attached to the wheel housing, the wiring can be shortened and the apparatus can be simplified. The rotation state detecting device for bicycle according to the second aspect is the device of the first aspect, wherein the circuit portion is fixed to the wheel housing shaft. Here, since the circuit portion is fixed to the wheel housing shaft, the device can be constructed compactly. A rotation state detecting device for a bicycle according to a third aspect is the device of the second aspect, wherein the circuit portion is located at an axial end portion of the wheel housing shaft and is fixed to the wheel housing shaft. In the case of shai, the circuit portion can be easily assembled. A rotation state detecting device for a bicycle according to a fourth aspect of the invention is the device of the first aspect, wherein the circuit portion has a circuit body including a detecting portion and a message transmitting portion, and a fixing member for fixing the circuit body to the wheel housing shaft And a cover member for covering the circuit body. Here, the circuit body can be easily attached and detached with respect to the wheel house shaft. Further, the shield member can be used to protect the circuit body from dust or the like. A rotation state detecting device for a bicycle according to a fifth aspect of the invention is the device of the fourth aspect, wherein the fixing member is formed of metal, and the shield member is formed of a synthetic resin. Here, since the fixing member is formed of metal, the circuit body can be firmly attached to the wheel house wheel, and the strength of the fixing member can be improved. Since the cover member is formed of a synthetic resin, the external interference of the M411566 can suppress radio wave interference with the circuit body. The apparatus for detecting a rotation state of a bicycle according to the sixth aspect of the present invention, wherein the outer diameter of the shield member is less than a maximum outer diameter of the wheel housing in a direction perpendicular to the rotation axis, and The circuit system is disposed between the fixed member and the shield member. Here, the device can be configured to have an overall shape with the wheel housing, so that it can be constructed in a compact manner. A rotation state detecting device for a bicycle according to a seventh aspect of the invention is the device of the first aspect, wherein the detecting unit detects the rotation state based on an output signal of the power generation unit. Here, since the rotation state is detected by the output signal of the power generation unit, the rotation state can be detected without a special element such as a magnet. The rotation state detecting device for bicycle according to the eighth aspect is the device of the first aspect, wherein the detecting portion has at least one magnet attached to any one of the wheel housing shaft and the wheel housing, and is mounted on the wheel The other part of the shell shaft and the wheel housing and as a Hall element of the magnetic sensor. Further, the detecting unit detects the rotation state based on the output nickname from the magnetic force sense. Here, the detecting unit detects the rotation state by using a magnet and a Hall element attached to the wheel housing shaft and the wheel housing. According to a ninth aspect of the invention, the device for detecting the state of use of the soap is a device of the first aspect, which is detached from the φ. When the electric circuit and the circuit portion are disposed relative to the wheel housing, the device can be attached to the bicycle. M411566 The rotation state detecting device for bicycle according to the tenth aspect of the invention is characterized in that, in the device of the ninth aspect, the power generating portion and the circuit portion can be mounted on the axial end portion of the wheel house wheel. The bicycle wheel housing according to the eleventh aspect of the invention includes the bicycle rotation state detecting device according to any one of the first to the first aspects. [Creation effect] As described above, the present invention transmits information indicating the rotation state by wireless, so wiring between the circuit unit and the display device or the like is not required. Further, since the detection unit operates by the electric power generated by the power generation unit, the electric power can be stably supplied, and the rotation state can be accurately detected at all times. [Embodiment] [Overall Configuration of Wheel Housing] Fig. 1 shows the construction of a wheel housing for bicycles according to an embodiment of the present invention. The wheel housing 1 is combined with the tire, the rim and the spoke to form a bicycle front wheel' and is attached to the front end of the front fork (not shown). The wheel housing 1 has a wheel housing shaft 2 and a wheel housing main body (the two parts of the wheel housing wheel housing shaft 2 can be combined with the fork. The wheel housing main body 3 is disposed on the outer peripheral side of the wheel housing shaft 2, by a pair The bearings 4 and 5 are rotatably attached to the wheel housing shaft 2. Further, the wheel housing 1 is provided with a rotation state detecting device 6 for detecting the rotation state of the wheel housing main body 3. [Rear shaft] Wheel housing shaft 2 is formed in a tubular shape, and the first end portion and the second end portion are formed in the left and right sides in Fig. 1 (hereinafter, the end portion on the left side in the axial direction of the wheel housing shaft 2 is referred to as "the i-th end M411566 portion", and the right end portion is formed. In addition to the "second end portion", the first male screw portion 2a is formed on the outer peripheral surface. Further, in Fig. 1, the direct inspection of the outer peripheral surface of the first end portion is smaller than that of the first male screw portion 2a. The second male screw portion 2b has a nut member 8 screwed to the second male screw portion 2b, and one of the bearings 4 is attached to the outer peripheral surface of the nut member 8. The bearing shell 4 is outside the wheel housing axis direction (Fig. In the left side of the crucible, the nut member 8 is formed with an i-th step portion, and the first step portion contacts the inner ring of the bearing 4 to prevent the bearing 4 from moving outward in the direction of the wheel housing axis. An internal thread portion is formed on the inner circumferential surface of the second end portion of the wheel housing shaft 2. The screw member 9 is screwed into the internal thread portion 2c. Further, the other bearing 5 is mounted on the wheel housing shaft 2 The outer peripheral surface of the second end portion. The outer side of the bearing 5 in the direction of the wheel housing axis (on the right side in FIG. 1) has a second step portion formed at the second end portion of the wheel housing shaft 2, and the second step portion contacts the bearing The inner wheel of 5 prevents the bearing 5 from moving outward in the direction of the wheel housing axis. Fig. 2 shows the part of the wheel housing shaft 2 after taking out the wheel housing shaft 2. As shown in Fig. 2 above, at the second end of the wheel housing shaft 2 The inner side (the first end side) of the wheel housing shaft 2 in the axial direction is formed with a wiring hole 2d penetrating from the inner peripheral portion space to the outer peripheral side. Further, the inner peripheral surface of the second end portion of the wheel housing shaft 2 is formed. A portion of the screw member 9 is screwed to form a slit 2e for accommodating the wiring. The slit is formed to be open inside in the axial direction of the wheel housing shaft 2 and has a second end portion from the wheel housing shaft 2 The end face of the wheel housing shaft 2 passes over the length of the internal thread portion 。. Further, the end portion of the right side of the slit 2e is open on the outer peripheral side. [Wheel shell body] As shown in FIG. The wheel housing main body 3 is a tubular member that expands M411566 (P4L2-3) so that the outer diameter gradually increases from the center portion toward the left and right first end portions 3a and the second end portions 3b. Further, at both end portions 3a 3b is attached to the end of the spoke 1 (only the spoke of the second end 3b side is shown in Fig. 1 as described above, the wheel housing main body 3 is such that the wheel housing shaft 2 penetrates the inside thereof, and A pair of bearings 4, 5 are rotatably supported on the wheel housing shaft 2. In the wheel housing main body 3, a third step portion contacting the outer wheel of the bearing 4 is formed on the inner side in the axial direction of the wheel housing shaft 2 of the bearing 4. A fourth step portion contacting the outer wheel of the bearing 5 is formed on the inner side in the axial direction of the wheel housing shaft 2 of the bearing 5. By mounting the nut member 8 on the wheel housing shaft 2, the wheel housing shaft 2 is Between the second step portion and the third and fourth step portions of the wheel house main body 3, bearings 4 and 5 are respectively held to prevent the bearings 4 and 5 from moving in the rim axis direction, and the wheel housing main body 3 It is stably and rotatably supported by the wheel housing shaft 2 by bearings 4, 5. Further, the cover member U is attached to the end surface of the first end portion of the wheel house main body 3. [Rotating State Detection Device] The rotation state detecting device 6 includes a generator 15 as a power generation unit, and a circuit breaker 16. The 15 series is disposed between the wheel housing shaft 2 and the wheel housing main body 3. Further, the circuit portion 16 is fixed to the second end portion of the wheel housing shaft 2. [Generator] Fig. 3 shows the overall appearance of the generator 15. The generator 15 has a cylindrical magnet 18 and a cylindrical inner fixing unit 19, and the magnet raft is disposed adjacent to the shaft 5 and disposed in the axial direction of the wheel housing shaft of the bearing 5, and is in the wheel. The inner peripheral surface '·the inner fixing unit 9 ' of the case main body 3 is disposed on the inner peripheral portion of the magnet 18 so as to face the magnet 18 - The magnet _ the magnet 18 includes the back yoke 22 and the plurality of magnets 23. Post magnetism (4) The M411566 is formed in a cylindrical shape and is fixed to the inner circumferential surface of the wheel housing main body 3. Further, a plurality of (for example, four) magnets 23 are formed in an arc shape and are fixed to the inner circumferential surface of the rear yoke 22. The magnets 23 alternately form N poles and s poles at equal intervals. - Inner fixing unit - Fig. 4 is inside fixing An exploded perspective view of the unit 19. As shown by the circle 4, the inner side solid 19 has a coil assembly 24 (the coil is omitted in Fig. 4) and the left and right stator yokes 25 and 26. The coil assembly 24 has a bobbin. And a coil 29 wound on the bobbin 28 (see, for example, Fig. 1). The bobbin 28 has a cylindrical main body portion 28a around which a coil is wound around the outer circumference, and both end portions of the main body portion 28a in the direction of the wheel housing axis. The second and second flanges 28b and 28c are formed with a plurality of projections 28d and 28e that protrude outward in the direction of the wheel housing axial direction at the outer peripheral ends of the flanges 28b and 28c. The plurality of projections 28d and 28e are provided. The purpose is to prevent the coil assembly from being displaced in the rotational direction with respect to the left and right stator magnets 25, 26. The left and right stator yokes 25, 26 are disposed to surround the coil assembly 24 and are disposed to face each other. Further, each of the stator yokes 25 and 26 is disposed between the magnet 23 and the coil assembly 24. Each of the stator magnets 25 and 26 has disc-shaped portions 25a and 26a and a plurality of magnetic pole pieces 25b and 26b. A plurality of concave portions are formed at the outer peripheral ends of the disk-shaped portions 25a and 26a. A plurality of the plurality of recesses are respectively engaged with the plurality of protrusions 28d and 28e of the wire shaft 28. The plurality of pole pieces 25b and 26b are along the wheel housing axis 2 from the portion of the disk-shaped portions 25a and 26a where the recess is not formed. The drawing direction extends toward the other disk-shaped portions 25a and 26a. Further, as shown in Fig. 5, the left and right stator magnet rollers 25 and 26 are of a type M411566 in which the magnetic pole pieces 25b and 26b of each other are different in the circumferential direction. Further, it is disposed around the coil assembly 24. Further, as shown in Fig. 6, holes 28f and 25c are formed in the flange 28b of the bobbin 28 and the disk-shaped portion 25a of the left stator yoke 25. The holes 28f, 25c are used to make the wiring electrically connected to the coil 29 pass through the hole. As shown in FIG. 1, the inner fixing unit 19 as described above is respectively clamped by the pair of first male screw portions 2& 2, which are screwed to the wheel housing shaft 2, for mounting nuts 3〇a, 3〇b. It is rotatably fixed to the wheel house shaft 2 so as to be between the pair of mounting units 30a and 30b. <Circuit Portion> The circuit portion 16 is fixed to the second end portion of the wheel housing shaft 2 in Fig. 1 . As shown in FIG. 1, the circuit portion 16 has a substrate base (fixing member) 3 attached to the second end portion of the wheel housing shaft 2, a circuit body 33 supported on the substrate base 32, and a shield covering the circuit body 33. Member 34. - Substrate Base - The mounting structure of the base plate 32 and the wheel house shaft 2 will be described below. Fig. 7 is a view of the second end portion of the wheel house shaft 2 as viewed in the direction of the wheel housing axis. As can be seen from Fig. 7 above, the second end portion of the wheel house shaft 2 is cut in three sides 36b, 36c, and 36d in a planar shape, and only one side 36a is left. That is, it is formed in a substantially square shape, and only one side 36a is a round fox shape. Fig. 8 is a view of the substrate base 32 (on the left side of Fig. 1) viewed from the side mounted on the wheel housing shaft 2. The substrate base 32 has a substantially rectangular parallelepiped shape having a specific thickness in the direction of the wheel housing axis. The substrate base 32 is formed of a metal material such as aluminum alloy. Further, an end face of the substrate base 32 on the inner side (the left side in Fig. 1) of the wheel housing shaft 2 in the axial direction is formed with a M411566 opening 32a having a specific depth in the direction of the wheel housing axis. The shape of the opening 32a is the same as the shape of the mounting portion formed by the second end portion of the wheel housing shaft 2, and the second end portion of the wheel housing shaft 2 can be fitted to the opening 32& Further, a circular hole 32b which is connected to the opening 32a and has a specific depth in the axial direction of the wheel housing shaft 2 is formed on the end surface of the substrate base 32 on the outer side (the right side in Fig. 1) of the wheel housing axis direction. The hole 32b allows the external thread portion of the screw member 9 to pass through the screw member 9 through hole 3213 and is attached to the wheel housing shaft 2. The substrate base 32 is sandwiched and fixed between the one portion of the screw member 9 and the second end portion of the wheel housing shaft 2 in the axial direction of the wheel housing shaft 2. Further, as shown in Fig. 9, a rectangular recessed portion 32c, 32d is formed by sandwiching the hole 32b in the substrate base 32, and a pair of recesses 32c, 32d are connected to the slots 32e, 32f. . Further, a pair of female screw portions 32g and 32h are symmetrically arranged in the outer side in the radial direction of the pair of grooves 32e' to 32f by the holding holes 32b. Further, Fig. 9 is a view in which the shield member 34 is removed, and the substrate base 32 attached to the wheel housing shaft 2 is viewed from the outer side (the right side in Fig. 1) of the wheel housing shaft 2. - Circuit body - As shown in Fig. 9, the circuit body 33 has a charging capacitor 35, a substrate 36, and a pair of wirings 3 7a, 37b that connect the charging capacitor 35 to the substrate 36. The charging capacitor 35 is housed in one of the recesses 32c of the substrate base 32, and the substrate 36 is housed in the other recess 32d of the substrate base 32. Further, the pair of wires 37a and 37b are disposed in the pair of grooves 326 and 32f, respectively. As shown in FIG. 10, the detection unit 41 is formed on the substrate 36, and the detection unit 41 for detecting the number of rotations of the wheel housing main body 3 with respect to the wheel housing shaft 2, and the above-mentioned -12·M411566 are wirelessly transmitted. The message transmitting unit 42 of the detection result of the detecting unit 41. The detecting unit 41 and the message transmitting unit 42 operate by the voltage of the driving voltage supply unit 4〇. Further, the detecting unit 41 detects the number of rotations of the wheel housing main body 3 based on the output signal of the generator 15. The message transmitting unit 42 transmits the number-of-rotation information obtained by the detecting unit 41 to the microcomputer provided in the cycle meter (not shown). - Shroud member - As shown in Fig. 1, the shield member 34 is a member for covering the substrate base 32 and the circuit body 33, and has a disk-shaped portion 34a and an outer peripheral cylindrical portion 34b. The circular plate portion 34a covers the axial direction side of the wheel housing shaft 2 of the circuit body 33. The disc portion 34a contacts one of the axial directions of the wheel housing shaft 2 of the substrate base 32, and blocks one of the recesses 32b, 32c of the substrate base 32 and the slots 32e, 32f in the direction of the wheel housing axis. Further, the outer peripheral cylindrical portion 3 covers the outer periphery of the substrate base 32 and the circuit body 33. The shield member 34 is formed of a synthetic resin so as not to cause radio wave interference to the information transmitting portion 42 of the circuit body 33, and is fixed to the internal thread portions 32g, 32h of the substrate base 32 by a screw member not shown. Further, the outer diameter of the shroud member 34 is formed to be equal to or smaller than the maximum outer diameter of the wheel house main body 3 in the direction perpendicular to the rotation axis of the wheel set 1. Here, the outer peripheral surface of one end portion of the wheel main body 3 and the outer peripheral surface of the shroud member 34 are formed to have substantially the same outer diameter. [Module Circuit Diagram] Fig. 10 is a block circuit diagram of the rotation state detecting device of the embodiment. That is, the above-mentioned module circuit diagram expresses the generator 15 and the circuit body 33 in detail. <Drive voltage supply unit> -13. M411566 The drive voltage supply unit 40 includes a full-wave rectifier circuit 45, an overvoltage protection circuit 46, a first regulator 47, a charging capacitor 35, and a second regulator. The full-wave rectifying circuit 45 is formed by a bridge circuit using four diodes. An overvoltage protection circuit 46 and a first regulator 47 are connected to the output side of the full-wave rectifier circuit 45. The overvoltage protection circuit 46 is composed of a Zener diode. The generator voltage is limited to a fixed value by the overvoltage protection circuit described above. Therefore, the low-voltage, low-voltage diode can be used to constitute the full-wave rectifying circuit 45, and the charging characteristics at low speed are improved. The i-th regulator 47 adjusts the output of the full-wave rectifying circuit 45 to a specific voltage, for example, a 3 3 v circuit. Further, the first regulator 47 is controlled to be turned on and off by the regulator 〇n/〇 ff circuit 50. The regulator ΟΝ/OFF circuit 50 is a circuit including a diode D1, a capacitor ci, and a resistor R1. When the vehicle is stopped, the first regulator 47 is turned off, and the power consumption of the first regulator 47 at the time of stopping is suppressed. More specifically, during the running, the waveform of the generator 15 is detected by the diode D1, and the output of the capacitor ci is charged by the output thereof to make the first! The regulator 47 operates. Further, the electric charge of the electric grid device C1 is gradually discharged by the resistor ri during the stop, and the i-th regulator 47 is turned off after a certain period of time. The charging capacitors 35 and 2 and the second regulator 49 are connected to the output side of the first regulator 47. In order to reduce the size of the substrate, the capacitor 35 for charging uses a capacitor of a capacitor. Here, when a small-capacity charging capacitor is used, the power supply voltage at the moment when the signal transmitting unit 42 transmits a signal changes (falls). Therefore, the circuit 52 for reducing the voltage ripple is provided to the output of the charging battery 85. side. The ripple reduction circuit 52 is composed of two capacitors M411566. Here, the charging voltage of the charging capacitor 35 is set to, for example, 3·3 v, and the (4) is stabilized by the second regulator 49, and this is used as the power source of the detecting unit-like transmitting unit 42.
^ 政田充電用電容器35以3.3 V 滿充電時，即便電壓瞬問下臨！ ν 鮮間下降1 V，亦可獲得穩定之電壓 作為電源電壓。 <檢測部> 檢測部41具有速度脈衝發生電路54、及速度運算用 IC(integrated circuit ’積體電路）55。速度脈衝發生電路^ 具有連接於發電機15之輸出部之二極體D2、及藉由二極體 D2而控制接通、斷開之電晶體Q。二極體D2之輸出側係連 接於電晶體Q之底座，^•自電晶體Q之集極輸出速度脈衝 信號。速度運算用IC55係根據所輸入之速度脈衝信號，而 運算輪殼主體3之旋轉數。 <訊息發送部> 訊息發送部42具有無線用IC56、及無線用晶片天線57。 無線用IC56使來自速度運算用IC55之旋轉數資料重疊於載 波而發送至晶片天線57。晶片天線57將旋轉數資料無線而 發送至周波計。 [工作] 於自行車之行駛過程中，若前輪即輪殼主體3相對於輪 殼軸2而旋轉’則磁體18相對於輪殼轴2上固定之内側固定 單元1 9而旋轉。藉此，線圈組裝體24中產生電流，進行發 電0 15 M411566 此處，自發電機15輸出之交流電壓經過全波整流 電路45 整流之後，進而由第1調節器47調整成穩定之電壓。再 者，高速行駛時發電機15之輪出會變高，藉由過電壓保護 電路46而將電壓控制為固定值。其結果為，可防止各部之 元件知壞。再者，當自行車停止未行駛時，藉由調節器 ΟΝ/OFF電路50而將第1調節器47斷開，抑制第^調節器47 之耗電。 又，利用第1調節器47之輸出電壓對充電用電容器35進 行充電。進而，將第1調節器47之輸出或充電用電容器 之輸出輸入至第2調節器49，並自第2調節器49將安定之電 源電壓、例如2.2 V之電源電壓提供給速度運算用1(：55及 無線用IC56。 另一方面，於速度脈衝發生電路54中，藉由二極體D2* 對發電機15之輸出中之半波之波形進行檢波。然後，將二 極體D2之輸出輸入至電晶體q之底座。藉此，電晶體Q之 集極電壓於檢波時低，於未檢波時高。將上述電晶體Q之 集極電壓作為速度脈衝信號而發送至速度運算用IC55。速 度運算用IC5 5根據上述速度脈衝信號而運算車輪之旋轉 數’並將運算結果發送至無線用IC56 ^無線用IC56將速度 運算用IC55之運算結果即旋轉數資料載入載波後發送至晶 片天線57。而且，將上述旋轉數資料自晶片天線57無線而 發送至周波計。 [特徵] (1)將車輪之旋轉數資料藉由無線而發送至周波計，故 M411566 無需電路本體33與周波計之間之配線。 (2) 利用發電機15產生之電力來驅動電路本體33，故可 穩定地供給電力。 (3) 電路部16係固定於輪殼轴2上，故可精簡裝置。而 且，電路部16係安裝於輪殼軸2之輪殼軸方向端部，故電 路部16之組裝變得容易。 (4) 設置有覆蓋電路本體33之護罩構件34 ,故可利用護 罩構件34保護電路本體33遠離灰塵等。 (5) 基板底座32係由金屬形成，故基板底座32之強度變 尚。而且，護罩構件34係由合成樹脂形成，故可抑制對電 路本體33之電波干擾。 (6) 護罩構件34之外徑為輪殼主體3之最大外徑以下，故 可將裝置與輪殼一體化而精簡地構成。 (7) 根據發電機15之輪出信號而檢測旋轉數，故無須使 用磁鐵等特別之元件便可檢測旋轉數。 (8) 於自行車停車時，第i調節器47斷開，故可抑制耗 電。 (9) 將充電用電容器35之充電電壓設為特定電壓、例如 3.3 V ’之後利用第2調節器49穩定電壓，故可快速充電， 同時於滿充電之情形時，即便電壓下降1 V亦不會影響電 源電壓。 [第2實施形態] 圖11及圖12表示第2實施形態之旋轉狀態檢測裝置。上 述第2實施形態之裝置將發電機及電路部設為相對於輪殼 •17· M411566 軸2之軸方向端部而可裝卸。再者圖u係將護罩構件拆 下後加以表示。 於上述裝置中，基板底座6〇係藉由螺釘而固定於輪殼軸 2上。基板底座60形成為環狀，且於基板底座 60上形成有 向輪殼轴2之轴方向外側開σ之環狀槽。基板底座6〇之上 述槽内固定有環狀之基板61，進而於基板6丨上安裝有複數 個充電用電容器62及天線63。基板61上所設之電路之具體 構成與第1貫施形態相同。#者，於上述第2實施形態中， 複數個充電用電容器62係於圓周方向上以特定間隔排列而 配置於環狀之基板61上。此處，作為基板底座⑼向輪殼轴 2上之固定方法，可係於底座構件60之内周面形成内螺 紋，於輪殼軸2之第2端部之外周面形成外螺紋之構成，亦 可係將貫通基板底座60之螺釘構件安裝至輪殼軸2上形成 之螺釘孔之構成，還可係於輪殼軸2之軸方向上將輪殼軸 60夾持於輪殼軸2之第2端部與螺釘構件9之間之構成。 又，於上述實施形態中，發電機64係配置於護罩構件Μ 之内周面與基板底座60之間。與第丨實施形態同樣地，發 電機64具有磁體66、及内侧固定單元67。再者，護罩構件 65嵌入於輪殼主體3之輪殼轴2之軸方向端部之端面。因 此’此處護罩構件65係與輪殼主體3—併旋轉。 磁體66係由護罩構件65之外周筒狀部65a之内周面所固 疋之後磁軛與複數個磁鐵而構成。各部之具體構成與第1 實施形態相同。又，内側固定單元67係與磁體66對向而配 置於磁體66之内周側，且固定於基板底座6〇之外周。上述 -18 - M411566 内側固定單元67具有線圈組裝體及左右之定子磁軛，上述 複數個具體構成與第1實施形態相同β [特徵] 上述第2實施形態中，除了具有與第1實施形態相同之特 徵以外，還具有可將發電機及電路部附加於不具有本裝置 之自行車上，從而追加本裝置之特徵。 [其他實施形態] 本創作並不限定於如上所述之實施形態，於不脫離本創 作之範圍内可進行各種變形或修正。 於上述各實施形態中，係利用發電機之輸出而檢測旋轉 數’但用以檢測旋轉數之構成並不限定於上述各實施形 癌。例如’如圖1 3所示’亦可磁鐵70與霍耳元件71而檢測 旋轉數。於圖13所示之示例中’護罩構件72與第2實施形 態同樣地固定於輪殼主體3上，與輪殼主體3一併旋轉。於 與上述輪殼主體3一併旋轉之護罩構件72上，固定有一個 磁鐵70。而且，於基板底座60之外周面，以與磁鐵70相對 向之方式固定有作為磁力感測器之霍耳元件71。將上述霍 耳元件71獲得之信號輸入至電路部，藉此可檢測輪殼主體 3之旋轉數。 再者，圖13中雖未圖示，但發電機係設置於與第1實施 形態相同之位置處，並利用發電機產生之電力而驅動各電 路0 【圖式簡單說明】 圖1係具有本創作第1實施形態之旋轉狀態檢測裝置之自 •19· M411566 行車輪殼之部分剖面構成圖。 圖2係上述輪殼之輪殼軸之剖面部分圖。 圖3係發電機之整趙立體圖。 圖4係構成發電機之内側固定單元之分解立體圖。 圖5係内側固定單元之整體立體圖。 圖6係内側固定單元之分解立體圖之一部分。 圖7係表示輪殼轴端部之電路部安裝部之圖。 圖8係表示構成電路部之基板底座之安裝面之圖。 圖9係表示基板底座及電路部之圖。 圖1〇係表示發電部及電路部之電路構成之方塊圖。 圖11係本創作第2實施形態之旋轉狀態檢測裝置之圖， 其相當於圖1。 圖12係本創作第2實施形態之旋轉狀態檢測裝置之圖， 其相當於圖9。 圖13係本創作其他實施形態之旋轉狀態檢測裝置之圖， 其相當於圖1。 【主要元件符號說明】 1 自行車用之輪殼 2 輪殼轴 2a 第1外螺紋部 2b 第2外螺紋部 2c、32g、32h 内螺紋部 2d 配線用孔 2e 狹縫 •20· M411566 3 輪殼主體（輪殼體） 3a 第1端部 3b 第2端部 4、5 軸承 6 旋轉狀態檢測裝置 8 螺帽構件 9 螺釘構件 10 輪幅 11 、 65 、 72 護罩構件 15、64 發電機（發電部） 16 電路部 18 ' 66 磁體 19 ' 67 内侧固定單元 22 後磁輛 23、70 磁鐵 24 線圈組裝體 25 ' 26 定子磁耗 25a ' 26a 圓板狀部 25b 、 26b 磁極片 28 線軸 28a 主體部 28b 第1凸緣 28c 第2凸緣 28d ' 28e 突起 -21 - M411566 28f' 25c 孔 29 線圈 30a、30b 安裝螺帽 32、60 基板底座（固定構件） 32a 開口 32b 孔 32c、32d 凹部 32e、32f 槽 33 電路本體 34 ' 65 ' 72 護罩構件 34a 圓板狀部 34b、65a 外周筒狀部 35 ' 62 充電用電容器 36、61 基板 36a、3 6b、36c、36d 邊 37a、37b 配線 40 驅動電壓供給部 41 檢測部 42 訊息發送部 45 全波整流電路 46 過電壓保護電路 47 第1調節器 49 第2調節器 50 調節器ΟΝ/OFF電路 -22- M411566 70 磁鐵 52 波紋減輕用電路 54 速度脈衝發生電路 55 速度運算用1C 56 無線用1C 57 晶片天線 63 天線 71 霍耳元件（磁力感測器） Cl 電容器 D1、D2 二極體 Q 電晶體 R1 電阻 -23-^ When the Zhengtian charging capacitor 35 is fully charged at 3.3 V, even if the voltage is instantaneous! When ν is dropped by 1 V, a stable voltage can be obtained as the power supply voltage. <Detection Unit> The detection unit 41 includes a speed pulse generation circuit 54 and a speed calculation IC (integrated circuit 'integrated circuit) 55. The speed pulse generating circuit has a diode D2 connected to the output portion of the generator 15, and a transistor Q which is controlled to be turned on and off by the diode D2. The output side of the diode D2 is connected to the base of the transistor Q, and the collector output speed pulse signal from the transistor Q. The speed calculation IC 55 calculates the number of rotations of the wheel house main body 3 based on the input speed pulse signal. <Message transmitting unit> The message transmitting unit 42 includes a wireless IC 56 and a wireless chip antenna 57. The wireless IC 56 superimposes the rotational number data from the speed calculation IC 55 on the carrier wave and transmits it to the wafer antenna 57. The wafer antenna 57 wirelessly transmits the rotation number data to the cycle meter. [Operation] During the running of the bicycle, if the front wheel, that is, the wheel house main body 3 is rotated with respect to the wheel housing shaft 2, the magnet 18 is rotated with respect to the inner fixing unit 19 fixed to the wheel house shaft 2. Thereby, a current is generated in the coil assembly 24, and power is generated. 0 15 M411566 Here, the AC voltage output from the generator 15 is rectified by the full-wave rectifying circuit 45, and further adjusted to a stable voltage by the first regulator 47. Further, the wheel of the generator 15 becomes high during high-speed traveling, and the voltage is controlled to a fixed value by the overvoltage protection circuit 46. As a result, it is possible to prevent the components of the respective parts from being damaged. Further, when the bicycle is stopped and not traveling, the first regulator 47 is turned off by the regulator ΟΝ/OFF circuit 50, and the power consumption of the second regulator 47 is suppressed. Further, the charging capacitor 35 is charged by the output voltage of the first regulator 47. Further, the output of the first regulator 47 or the output of the charging capacitor is input to the second regulator 49, and the stabilized power supply voltage, for example, a power supply voltage of 2.2 V, is supplied from the second regulator 49 to the speed calculation 1 ( :55 and the wireless IC 56. On the other hand, in the speed pulse generating circuit 54, the waveform of the half wave in the output of the generator 15 is detected by the diode D2*. Then, the output of the diode D2 is output. The collector voltage of the transistor Q is low at the time of detection and is high at the time of undetected, and the collector voltage of the transistor Q is transmitted as a speed pulse signal to the speed calculation IC 55. The speed calculation IC 5 5 calculates the number of rotations of the wheel based on the speed pulse signal and transmits the calculation result to the wireless IC 56. The wireless IC 56 loads the rotation number data, which is the calculation result of the speed calculation IC 55, into the carrier, and transmits it to the chip antenna. 57. Further, the rotation number data is wirelessly transmitted from the chip antenna 57 to the cycle meter. [Features] (1) The rotation number data of the wheel is wirelessly transmitted to the cycle meter, so the M411566 does not require the circuit book. (3) The circuit body 33 is driven by the electric power generated by the generator 15, so that the electric power can be stably supplied. (3) The circuit portion 16 is fixed to the wheel housing shaft 2, so that it can be simplified. Further, since the circuit portion 16 is attached to the end portion of the wheel housing shaft 2 in the wheel housing axial direction, assembly of the circuit portion 16 is facilitated. (4) The shield member 34 covering the circuit body 33 is provided, so that it can be utilized. The shield member 34 protects the circuit body 33 from dust and the like. (5) Since the substrate base 32 is formed of metal, the strength of the substrate base 32 is improved. Moreover, the shield member 34 is formed of synthetic resin, so that the circuit body can be suppressed. (16) The outer diameter of the shroud member 34 is equal to or less than the maximum outer diameter of the wheel housing main body 3, so that the device and the wheel housing can be integrated and simplified. (7) According to the rotation of the generator 15 Since the number of rotations is detected by the signal, the number of rotations can be detected without using a special component such as a magnet. (8) When the bicycle is stopped, the i-th regulator 47 is turned off, so that power consumption can be suppressed. (9) The capacitor for charging 35 After the charging voltage is set to a specific voltage, for example, 3.3 V ' Since the second regulator 49 stabilizes the voltage, it can be quickly charged, and at the same time, even when the voltage is lowered by 1 V, the power supply voltage is not affected. [Second Embodiment] Figs. 11 and 12 show a second embodiment. In the apparatus according to the second embodiment, the generator and the circuit unit are detachably attached to the end portion of the wheel housing 17 and M411566 shaft 2 in the axial direction. Further, the shield member is removed. In the above apparatus, the substrate base 6 is fixed to the wheel housing shaft 2 by screws. The base base 60 is formed in an annular shape, and an axis to the wheel housing shaft 2 is formed on the base substrate 60. Open the annular groove of σ on the outer side of the direction. An annular substrate 61 is fixed to the substrate base 6A, and a plurality of charging capacitors 62 and antennas 63 are mounted on the substrate 6A. The specific configuration of the circuit provided on the substrate 61 is the same as that of the first embodiment. In the second embodiment, the plurality of charging capacitors 62 are arranged at a predetermined interval in the circumferential direction and are disposed on the annular substrate 61. Here, as a method of fixing the substrate base (9) to the wheel housing shaft 2, an internal thread may be formed on the inner circumferential surface of the base member 60, and an external thread may be formed on the outer circumferential surface of the second end portion of the wheel housing shaft 2, Alternatively, the screw member penetrating the substrate base 60 may be attached to the screw hole formed in the wheel housing shaft 2, and the wheel housing shaft 60 may be clamped to the wheel housing shaft 2 in the axial direction of the wheel housing shaft 2. The structure between the second end portion and the screw member 9. Further, in the above embodiment, the generator 64 is disposed between the inner circumferential surface of the shield member 与 and the substrate base 60. Similarly to the second embodiment, the generator 64 has a magnet 66 and an inner fixing unit 67. Further, the shield member 65 is fitted to the end surface of the end portion of the wheel housing main shaft 3 in the axial direction. Therefore, the shield member 65 here is rotated with the wheel house main body 3. The magnet 66 is composed of a yoke and a plurality of magnets which are fixed by the inner peripheral surface of the outer peripheral cylindrical portion 65a of the shield member 65. The specific configuration of each unit is the same as that of the first embodiment. Further, the inner fixing unit 67 is disposed on the inner peripheral side of the magnet 66 so as to face the magnet 66, and is fixed to the outer periphery of the substrate base 6〇. The -18 - M411566 inner fixing unit 67 has a coil assembly and left and right stator yokes, and the plurality of specific configurations are the same as those of the first embodiment. [Characteristics] The second embodiment has the same configuration as the first embodiment. In addition to the features, the generator and the circuit unit can be attached to a bicycle that does not have the device, and the device is added. [Other Embodiments] The present invention is not limited to the above-described embodiments, and various modifications and changes can be made without departing from the scope of the invention. In each of the above embodiments, the number of revolutions is detected by the output of the generator. However, the configuration for detecting the number of revolutions is not limited to the above-described respective embodiments. For example, as shown in Fig. 13, the magnet 70 and the hall element 71 can also detect the number of revolutions. In the example shown in Fig. 13, the cover member 72 is fixed to the wheel house main body 3 in the same manner as the second embodiment, and rotates together with the wheel house main body 3. A magnet 70 is fixed to the shield member 72 that rotates together with the wheel housing main body 3. Further, a Hall element 71 as a magnetic sensor is fixed to the outer peripheral surface of the substrate base 60 so as to face the magnet 70. The signal obtained by the above-described Hall element 71 is input to the circuit portion, whereby the number of rotations of the wheel house main body 3 can be detected. Further, although not shown in Fig. 13, the generator is provided at the same position as in the first embodiment, and each circuit is driven by the electric power generated by the generator. [Simplified description of the drawing] Fig. 1 has this A partial cross-sectional configuration diagram of the wheel housing of the 19th and M411566 rows of the rotation state detecting device of the first embodiment is created. Figure 2 is a cross-sectional view of the wheel housing shaft of the above wheel housing. Figure 3 is a perspective view of the generator. Fig. 4 is an exploded perspective view showing the inner fixing unit of the generator. Fig. 5 is an overall perspective view of the inner fixing unit. Figure 6 is a portion of an exploded perspective view of the inner fixed unit. Fig. 7 is a view showing a circuit portion mounting portion of the end portion of the wheel housing shaft. Fig. 8 is a view showing a mounting surface of a substrate base constituting a circuit portion. Fig. 9 is a view showing a substrate base and a circuit portion. Fig. 1 is a block diagram showing the circuit configuration of a power generation unit and a circuit unit. Fig. 11 is a view showing a rotation state detecting device according to a second embodiment of the present invention, which corresponds to Fig. 1. Fig. 12 is a view showing a rotation state detecting device according to a second embodiment of the present invention, which corresponds to Fig. 9. Fig. 13 is a view showing a rotation state detecting device according to another embodiment of the present invention, which corresponds to Fig. 1. [Description of main component symbols] 1 Wheel housing for bicycle 2 Wheel housing shaft 2a First male screw portion 2b Second male screw portion 2c, 32g, 32h Female screw portion 2d Wiring hole 2e Slit • 20· M411566 3 Wheel housing Main body (wheel housing) 3a First end portion 3b Second end portion 4, 5 Bearing 6 Rotation state detecting device 8 Nut member 9 Screw member 10 Spokes 11, 65, 72 Shroud members 15, 64 Generator (power generation 16) Circuit portion 18' 66 Magnet 19' 67 Inner fixed unit 22 Rear magnetic unit 23, 70 Magnet 24 Coil assembly 25' 26 Stator magnetic loss 25a ' 26a Disk-shaped portion 25b, 26b Magnetic pole piece 28 Spool 28a Main body 28b first flange 28c second flange 28d' 28e projection-21 - M411566 28f' 25c hole 29 coil 30a, 30b mounting nut 32, 60 substrate base (fixing member) 32a opening 32b hole 32c, 32d recess 32e, 32f Slot 33 circuit body 34' 65' 72 shroud member 34a disc-shaped portion 34b, 65a outer peripheral cylindrical portion 35' 62 charging capacitor 36, 61 substrate 36a, 36b, 36c, 36d side 37a, 37b wiring 40 driving voltage for Feeding unit 41 Detection unit 42 Message transmitting unit 45 Full-wave rectifying circuit 46 Over-voltage protection circuit 47 First regulator 49 Second regulator 50 Regulator ΟΝ/OFF circuit-22- M411566 70 Magnet 52 Ripple mitigation circuit 54 Speed pulse Generation Circuit 55 Speed Calculation 1C 56 Wireless 1C 57 Chip Antenna 63 Antenna 71 Hall Element (Magnetic Sensor) Cl Capacitor D1, D2 Diode Q Transistor R1 Resistance-23-