CN110954257A - 具有施力力道直接量测装置的曲柄 - Google Patents
具有施力力道直接量测装置的曲柄 Download PDFInfo
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Abstract
一种具有施力力道直接量测装置的曲柄,在所述曲柄的两端的轴孔之一配置一力道量测装置,所述力道量测装置包括一感应座,嵌置定位在所述轴孔中。多个应力感测单元,彼此相隔一间隔角度环列定位在所述感应座。一运算及传输装置电连接多个所述应力感测单元。当一施力方向的力道施加于所述曲柄时,所述力道经由所述曲柄传导至所述感应座,由多个所述应力感测单元感测所述力道并产生相应于所述力道的多个应力变化信号送到所述运算及传输装置。
Description
技术领域
本发明关于一种曲柄力道量测装置,特别是一种具有施力力道直接量测装置的曲柄。
背景技术
自行车骑乘者借由踩踏踏板而达到良好的运动效果。然而,传统自行车的设计并无法提供骑乘者在施力踩踏踏板时的施力力道。故骑乘者只能借由简易的里程计算或转速计算传感器推测得知其运动量。
为了使自行车骑乘者在踩踏踏板时,能让骑乘者知道踩踏力道的大小,故开发出可以感测骑乘者脚踏自行车踏板时出力功率大小(即施力力道)的装置。在现有的设计中,主要是利用自行车曲柄量测骑乘者在骑乘自行车时的施力力道。
在传统自行车利用曲柄量测骑乘者脚踏时出力的功率大小的技术中,在曲柄的外表面设置至少两个应变计,借由所述应变计感测施加至所述曲柄的力道大小。
或者分别在踏板轴心定子两侧各设置有四片感测组件,以侦测及分析骑乘者施加在自行车踏板上的施力强度,以及力量分布在自行车踏板表面上的施力状况,令骑乘者可获得整周旋转的连续相关资料来改善自身的踩踏效率。
或者将功率测量组件安装在轴内,其与自行车或其他健身设备的曲柄互连。功率测量组件包括惠斯通电桥电路和连接的应变计,所述电路通过踩踏曲柄的骑车者在轴上提供力的输出,由应变计测量曲柄上施加的扭矩引起的扭转。
然而,在实际应用中,目前使用的现有技术中自行车施力力道量测装置存在缺点如下:
结构复杂,成本高;
质量难控制;
传统量测方法均属于表面量侧或间接量测,误差值高;
传统表面量测方法或间接量测方法,容易受环境影响准确性。
传统表面量测或间接量测方法,其准确性受机构或材料限制。
传统表面量测或间接量测方法,其准确性因易受环境、机构、材料等因素变化,所以必须常常做校准工作,否则其量测数值无参考价值。
传统表面量测或间接量测方法,无法量测每一转速里的角度功率变化值。
发明内容
本发明的主要目的即是提供一种具有施力力道直接量测装置的曲柄,以直接量测的方式量测自行车或其它类似运动器材的使用者在运动时的施力力道大小。
本发明所采用的技术手段为一种具有施力力道直接量测装置的曲柄,在所述曲柄的两端的轴孔之一配置一力道量测装置,所述力道量测装置包括一感应座,具有一沿着所述水平方向形成的中央通孔,所述感应座以所述水平方向嵌置定位在所述轴孔中。多个应力感测单元,彼此相隔一间隔角度环列定位在所述感应座。一运算及传输装置电连接多个所述应力感测单元。当一施力方向的力道施加于所述曲柄时,所述力道经由所述曲柄传导至所述感应座,由多个所述应力感测单元感测所述力道并产生相应于所述力道的多个应力变化信号送到所述运算及传输装置。
其中,所述曲柄是以金属材料、碳纤维材料制成。
其中,所述第一轴孔是耦合于自行车、电动自行车、健身车、划船器、复健或医疗器材之一的曲柄轴或齿盘组之一;所述第二轴孔是耦合于所述自行车、电动自行车、健身车、划船器、复健或医疗器材之一的踏板轴。所述第一轴孔也可替换地耦合于踏板轴,所述第二轴孔则耦合于曲柄轴或齿盘组。
其中,所述感应座的外环面凸伸出多个凸缘,而在所述曲柄的所述第一轴孔则开设对应于多个所述凸缘的多个凹缘,多个所述应力感测单元定位在所述凸缘的内部空间中的平面处、侧壁面、后侧壁面之一。
其中,所述感应座具有多角形结构,多个所述应力感测单元彼此相隔一间隔角度环列定位在所述多角形结构的侧壁面、外壁面位置之一。
其中,所述应力感测单元为荷重传感器、半导体应力传感器、电容式应力传感器、电感式应力传感器之一。
其中,所述运算及传输装置包括:一处理单元,电连接于多个所述应力感测单元;一无线传输器,电连接于所述处理单元;一接收器,以无线方式连接于所述无线传输器,所述接收器配置一显示器;一电能供应单元,用以供应一工作电能给所述处理单元和多个所述应力感测单元。其中,所述处理单元接收到多个所述应力感测单元在所述曲柄受到所述力道时所产生的多个所述应力变化信号后,经过运算后,将运算后的信号通过所述无线传输器无线传送至所述接收器,并显示于接收器上的显示器。
其中,所述运算及传输装置还包括一加速规或磁感应传感器,电连接于处理单元,用以感测所述曲柄受力运动时的角速度、转速RPM之一。
其中,所述运算及传输装置还包括一全球定位系统GPS卫星接收电路,电连接于处理单元,用以感测地理位置。
其中,所述曲柄的所述第二轴孔中也配置另一力道量测装置。
其中,所述接收器为一车表、智能型手机、个人随身穿戴装置、网络网关(Gateway)、云端或无线网络之一。
其中,运算及传输装置中包括一电能供应单元,用以供应一工作电能给所述处理单元和多个所述应力感测单元。
其中,还包括一感应座,所述感应座嵌置定位在第二轴孔中,感应座上设有一应力感测单元。
在效果方面,本发明针对现有技术的缺点提供一种直接量测的方式量测自行车或复健器材、医疗器材或其它类似运动器材的使用者在运动、复健或使用医疗器材时的施力力道大小。本发明的结构设计简易,故克服了传统技术成本高、质量难控制的问题。本发明采用直接量测力道大小的方式,故所感测出的力道数值误差值小、不受环境影响准确性、不受机构或材料变化而影响准确性、不需经常性的数值校准工作。采用本发明的技术,可量测每一转速里的角度功率变化值。
附图说明
本发明所采用的具体技术,将借由以下实施例及附呈图式作进一步的说明。
图1表示本发明第一实施例具有施力力道直接量测装置的曲柄的立体图;
图2表示本发明第一实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图;
图3表示本发明第一实施例具有施力力道直接量测装置的曲柄的部分组件分离时的另一立体分解图;
图4A表示图3中应力感测单元也可以彼此相隔一间隔角度环列定位在所述感应座的外环面位置;
图4B表示图3中应力感测单元也可以彼此相隔一间隔角度环列定位在所述感应座的凸缘的内部空间中的平面处;
图4C表示图3中应力感测单元也可以彼此相隔一间隔角度环列定位在所述感应座的凸缘的内部空间中的侧壁面;
图4D表示图3中应力感测单元也可以彼此相隔一间隔角度环列定位在所述感应座的凸缘的内部空间中的后侧壁面;
图5A表示多个应力感测单元彼此相隔一间隔角度环列定位在六角形感应座的外壁面位置;
图5B表示多个应力感测单元彼此相隔一间隔角度环列定位在六角形感应座的侧壁面位置;
图6A表示多个应力感测单元彼此相隔一间隔角度环列定位在八角形感应座的外壁面位置;
图6B表示多个应力感测单元彼此相隔一间隔角度环列定位在八角形感应座的侧壁面位置;
图7表示本发明的电路功能方块图;
图8表示本发明第二实施例具有施力力道直接量测装置的曲柄的立体图;
图9表示图8中应力感测单元以彼此相隔一间隔角度定位在感应座的一侧壁面;
图10表示本发明第三实施例具有施力力道直接量测装置的曲柄的立体图;
图11表示本发明第三实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图;
图12表示本发明第四实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体图;
图13表示本发明第四实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图。
附图标记说明:
1 曲柄
11 第一轴孔
111 凹缘
12 第二轴孔
13 容置凹部
14 外盖
2 力道量测装置
21 感应座
211 凸缘
22a、22b、22c、22d 应力感测单元
212 沟槽
23 螺纹区段
24 螺帽
25 中央通孔
26 运算及传输装置
261 处理单元
262 无线传输器
263 电能供应单元
264 接收器
265 显示器
266 加速规
267 GPS卫星接收电路
27 电路板
28 定位组件
3 曲柄轴
4 踏板
41 踏板轴
51 盖体
52 应力感测单元
53 螺丝
S1、S2、S3、S4 应力变化信号
H 水平方向
R 施力方向
具体实施方式
请同时参阅图1~3所示,其中图1显示本发明第一实施例具有施力力道直接量测装置的曲柄的立体图,图2、3显示第一实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图。如图所示,本发明在一曲柄1的两自由端各别形成一与所述曲柄1实质垂直的第一轴孔11和第二轴孔12。
本发明在曲柄1的两自由端任何一端(即第一轴孔11及/或第二轴孔12)配置一力道量测装置2,且所述力道量测装置2以所述第一轴孔11或第二轴孔12形成同心圆关系,用以量测施加于所述曲柄1的应力。在本实施例中,力道量测装置2是结合在曲柄1的第一轴孔11。
力道量测装置2包括一感应座21,以一垂直于曲柄1的水平方向H嵌置定位在所述轴孔11中。力道量测装置2还包括多个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度环列定位(例如以贴合方式)在所述感应座21的侧壁面位置。所述应力感测单元可为荷重传感器(Load cell)、半导体应力传感器、电容式应力传感器、电感式应力传感器之一。
在实际应用时,曲柄1的第一轴孔11可耦合于例如自行车、电动自行车、健身车、划船器、复健或医疗器材的曲柄轴3或齿盘组,并与所述曲柄轴3构成同心圆,而第二轴孔12可耦合于可供使用者踩踏的踏板4的踏板轴41。曲柄1可以金属材料、碳纤维材料制成。
较佳实施例中,感应座21的外环面可凸伸出多个相隔一间隔角度环列的凸缘211,而在曲柄1的第一轴孔11则开设相对应的凹缘111,如此可使感应座21稳定结合于曲柄1的第一轴孔11中。另一较佳实施例中,感应座21页可设计成例如多边形的外壁面结构,同样可以使感应座21稳定结合于曲柄1的第一轴孔11中。
感应座21在一端面可凸出一螺纹区段23,并配合一螺帽24将所述感应座21定位于曲柄1的轴孔11中。感应座21中设有一中央通孔25,可供例如自行车、电动自行车、健身车、划船器、复健或医疗器材的曲柄轴3通过,以将曲柄1结合定位于曲柄轴3。
当感应座21定位在曲柄1的第一轴孔11后,可再以一外盖14予以封闭作为保护作用。
力道量测装置2还包括一运算及传输装置26。运算及传输装置26可设置在曲柄1所开设的一容置凹部13中,并经由导线电连接多个所述应力感测单元22a、22b、22c、22d。一电路板27可配置对应于感应座21,以便于将各个应力感测单元22a、22b、22c、22d以导线连接至运算及传输装置26。
参阅图4A所示,其显示本发明力道量测装置2的各个应力感测单元22a、22b、22c、22d除了设置在如图3所示的侧壁面位置之外,也可以彼此相隔一间隔角度环列定位在所述感应座21的外环面位置,同样可以感测施加于曲柄1的力道。
参阅图4B所示,其显示本发明力道量测装置2的各个应力感测单元22a、22b、22c、22d也可以分别设置在感应座21的凸缘211的内部空间中的平面处,同样可以感测施加于曲柄1的力道。
参阅图4C所示,其显示本发明力道量测装置2的各个应力感测单元22a、22b、22c、22d也可以分别设置在感应座21的凸缘211的内部空间中的其中一侧壁面,同样可以感测施加于曲柄1的力道。
参阅图4D所示,其显示本发明力道量测装置2的各个应力感测单元22a、22b、22c、22d也可以分别设置在感应座21的凸缘211的内部空间中的后侧壁面,同样可以感测施加于曲柄1的力道。
前述的感应座21也可设计成多角形结构。例如,参阅图5A所示,其显示本发明力道量测装置2也可设计成具有六角形感应座21a的结构,而各个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度定位在所述六角形感应座21a的外壁面位置。当采用此实施例结构时,曲柄1的第一轴孔11也需设计成对应的嵌合结构。
参阅图5B所示,其显示本发明力道量测装置2中的各个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度环列定位在六角形感应座21a的侧壁面位置。
参阅图6A所示,其显示本发明力道量测装置2也可设计成具有八角形感应座21b的结构,而各个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度定位在所述八角形感应座21b的外壁面位置。
参阅图6B所示,其显示本发明力道量测装置2中的各个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度环列定位在八角形感应座21b的侧壁面位置。
参阅图7所示,运算及传输装置26包括一处理单元261、一无线传输器262、一电能供应单元263。其中处理单元261电连接于应力感测单元22a、22b、22c、22d,电能供应单元263(例如电池)可供应工作电能给处理单元261和各个应力感测单元22a、22b、22c、22d。无线传输器262可透过无线方式(例如射频、蓝牙)传送信号至一接收器264。
当一力道以如图3所示的施力方向R施加于所述曲柄1时(例如使用者踩踏踏板4时),所述力道经由所述曲柄1传导至所述感应座21,由多个所述应力感测单元22a、22b、22c、22d依据悬臂(cantilevel)理论直接感测所述力道的应力变化,能获得高准确性的感测值,避免受外环境影响准确性。
应力感测单元22a、22b、22c、22d依据感测到的应力变化,可产生多个应力变化信号S1、S2、S3、S4送到所述运算及传输装置26中的处理单元261。处理单元261接收到各个应力感测单元22a、22b、22c、22d所传来的应力变化信号S1、S2、S3、S4后,可经过信号处理与运算(例如噪声过滤、信号转换、数值计算)后,通过无线传输器262将运算后的信号以无线方式传送信号至一接收器264,并显示于接收器264上的显示器265。接收器264可为车表、智能型手机、个人随身穿戴装置、网络网关(Gate way)、云端或无线网络等接收器。
运算及传输装置26也可以包括一加速规266(Acceleration sensor),电连接于处理单元261,可用以感测及计算所述曲柄1受力运动时的角速度ωθ或转速RPM,并据以计算出使用者施加至踏板的力道。所述加速规266也可以磁感应传感器予以取代。
由于应力感测单元22a、22b、22c、22d设计每隔固定角度(例如90度角或45度角)设计形成一圆弧型式,故当曲柄转动时,配合所述加速规266可以更精准依据角度变化量测使用者在乘骑时RPM(Round per minute,转速)的每一转里的角度的脚踏力道。
运算及传输装置26也可以包括一GPS(Global Positioning System,全球定位系统)卫星接收电路267,经由无线传输器262传输使用者乘骑时的地理位置。
图8显示本发明第二实施例具有施力力道直接量测装置的曲柄的立体图。图9显示图8中应力感测单元以彼此相隔一间隔角度定位在感应座的一侧壁面。本实施例的组成构件与第一实施例大致相同,故相同组件乃标示相同的组件编号,以资对应。
在本发明第二实施例中,感应座21的外环面可凸伸出多个相隔一间隔角度环列的凸缘211,而在曲柄1的第一轴孔11则开设相对应的凹缘111,如此可借由定位组件28将感应座21嵌置定位在曲柄1的轴孔11中。
多个应力感测单元22a、22b、22c、22d一一地定位在感应座21的侧壁面所默认的凹部位置。借由各个应力感测单元22a、22b、22c、22d可以感测施加于曲柄1的力道。感应座21基本上可为一实体结构,也可在各个感应座21各别开设一沟槽212,可借由沟槽212的宽度而增加或减少感应座21在受力时的变形量。
图10显示本发明第三实施例具有施力力道直接量测装置的曲柄的立体图,图11显示第三实施例具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图。本实施例的组成构件与图8、10所的第二实施例大致相同,故相同组件乃标示相同的组件编号,以资对应。在本实施例中,力道量测装置2是结合在曲柄1的第二轴孔12,而第二轴孔12又可耦合于自行车、电动自行车、健身车、划船器、复健或医疗器材之一的踏板4的踏板轴41。第一轴孔11则可耦合于例如自行车、电动自行车、健身车、划船器、复健或医疗器材之一的曲柄轴3或齿盘组。
如图11所示,当感应座21定位在曲柄1的第二轴孔12后,踏板4的踏板轴41可通过感应座21的中央通孔25。
力道量测装置2中的多个应力感测单元22a、22b、22c、22d彼此相隔一间隔角度环列定位在所述感应座21的侧壁面位置。所述应力感测单元22a、22b、22c、22d也可以彼此相隔一间隔角度环列定位在所述感应座21的外环面位置或感应座21的凸缘211的内部空间中。
当使用者踩踏踏板4时,踏板4的踏板轴41与曲柄1呈相对的旋转运动,同时所述使用者所施加至踏板4的力道会经由踏板轴41传导至感应座21,由各个应力感测单元22a、22b、22c、22d感测所述力道,再由应力感测单元22a、22b、22c、22d产生多个应力变化信号送到所述运算及传输装置26。
在本发明实施例图12中,包括一感应座21,感应座21嵌置定位在第二轴孔12中,感应座21上设有应力感测单元52,其中应力感测单元52可为应力感测单元。
在本发明实施例图13,为具有施力力道直接量测装置的曲柄的部分组件分离时的立体分解图。在本实施例中,曲柄1的第二轴孔12中设置一感应座21,且在相对于踏板4的另一侧设有一盖体51,感应座21上设有应力感测单元52,并以螺丝53固定,而第二轴孔12又可耦合于自行车、电动自行车、健身车、划船器、复健或医疗器材之一的踏板4的踏板轴41。第一轴孔11则可耦合于例如自行车、电动自行车、健身车、划船器、复健或医疗器材之一的曲柄轴3或齿盘组。
以上所举实施例仅用以说明本发明,并非用以限制本发明的范围,凡其他未脱离本发明所揭示的精神下而完成的等效修饰或置换,均应包含于后述申请专利范围内。
Claims (13)
1.一种具有施力力道直接量测装置的曲柄,在所述曲柄的两自由端分别形成一与该曲柄垂直的水平方向的一第一轴孔和一第二轴孔,其特征在于,所述第一轴孔中配置一力道量测装置,所述力道量测装置包括:
一感应座,具有一沿着所述水平方向形成的中央通孔,所述感应座以所述水平方向嵌置定位在所述第一轴孔中;
多个应力感测单元,彼此相隔一间隔角度环列定位在所述感应座;
一运算及传输装置,电连接所述多个应力感测单元;
当一施力方向的力道施加于所述曲柄时,所述力道传导至所述感应座的多个所述应力感测单元感测,由多个所述应力感测单元感测所述力道并产生相应于所述力道的多个应力变化信号送到所述运算及传输装置。
2.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述曲柄是以金属材料、碳纤维材料制成。
3.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述第一轴孔是耦合于自行车、电动自行车、健身车、划船器、复健或医疗器材之一的曲柄轴或齿盘组之一;所述第二轴孔是耦合于所述自行车、电动自行车、健身车、划船器、复健或医疗器材之一的踏板的一踏板轴。
4.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述第一轴孔是耦合于所述自行车、电动自行车、健身车、划船器、复健或医疗器材之一的踏板的一踏板轴;所述第二轴孔是耦合于自行车、电动自行车、健身车、划船器、复健或医疗器材之一的曲柄轴或齿盘组之一。
5.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述感应座的外环面凸伸出多个相隔一间隔角度的凸缘,在所述曲柄的所述第一轴孔则开设对应于多个所述凸缘的多个凹缘,多个所述应力感测单元定位在所述凸缘的内部空间中的平面处、侧壁面、后侧壁面之一。
6.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述感应座具有多角形结构,多个所述应力感测单元彼此相隔一间隔角度环列定位在所述多角形结构的侧壁面、外环面位置之一。
7.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述应力感测单元为荷重传感器、半导体应力传感器、电容式应力传感器、电感式应力传感器之一。
8.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述运算及传输装置包括:
一处理单元,电连接于多个所述应力感测单元;
一无线传输器,电连接于所述处理单元;
一接收器,以无线方式连接于所述无线传输器,所述接收器配置一显示器;
一电能供应单元,用以供应一工作电能给所述处理单元和多个所述应力感测单元;
其中,所述处理单元接收到多个所述应力感测单元在所述曲柄受到所述力道时所产生的多个所述应力变化信号后,经过运算后,将运算后的信号通过所述无线传输器无线传送至所述接收器,并显示于所述接收器上的所述显示器。
9.依据权利要求8所述的具有施力力道直接量测装置的曲柄,其特征在于,所述运算及传输装置还包括一加速规或磁感应传感器,电连接于所述处理单元,用以感测所述曲柄受力运动时的角速度、转速RPM之一。
10.依据权利要求8所述的具有施力力道直接量测装置的曲柄,其特征在于,所述运算及传输装置还包括一全球定位系统GPS卫星接收电路,电连接于所述处理单元,用以感测地理位置。
11.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,所述曲柄的所述第二轴孔中也配置另一力道量测装置。
12.依据权利要求8所述的具有施力力道直接量测装置的曲柄,其特征在于,所述接收器为一车表、智能型手机、个人随身穿戴装置、网络网关、云端或无线网络之一。
13.依据权利要求1所述的具有施力力道直接量测装置的曲柄,其特征在于,还包括一感应座,所述感应座以嵌置定位在所述第二轴孔中,所述感应座上设有一应力感测单元。
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TW107133984A TWI677667B (zh) | 2018-09-27 | 2018-09-27 | 具有施力力道直接量測裝置的曲柄 |
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USD895488S1 (en) * | 2019-01-16 | 2020-09-08 | John Daniel Corder | Crank device |
JP7438837B2 (ja) * | 2020-04-23 | 2024-02-27 | 株式会社シマノ | 人力駆動車用のコンポーネント |
JP7467216B2 (ja) * | 2020-04-23 | 2024-04-15 | 株式会社シマノ | 人力駆動車用のコンポーネント |
TWI753698B (zh) | 2020-12-11 | 2022-01-21 | 財團法人工業技術研究院 | 具扭力感測器之心軸裝置 |
CN117642823A (zh) * | 2021-07-14 | 2024-03-01 | 美光科技公司 | 集成电路存储器装置中错误校正码技术的选择性及动态部署 |
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TWI677667B (zh) | 2019-11-21 |
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