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1. 发明授权

US09771128B2 Bicycle crank assembly 有权
公开(公告)号：US09771128B2
公开(公告)日：2017-09-26
申请号：US13253113
申请日：2011-10-05
申请人： Akinobu Sugimoto , Eigo Kuroiwa , Toshio Tetsuka , Yusuke Nishimoto
发明人： Akinobu Sugimoto , Eigo Kuroiwa , Toshio Tetsuka , Yusuke Nishimoto
IPC分类号： B62M3/00 , B62M9/10
CPC分类号： B62M9/105 , B62M3/00 , Y10T74/2165
摘要： A bicycle crank assembly is provided with a first sprocket, a second sprocket, a crank arm, a sprocket fixing structure and an alignment tube. The first sprocket includes a plurality of first teeth and at least one first mounting portion having a first mounting opening. The second sprocket includes a plurality of second teeth and at least one second mounting portion having a second mounting opening. The crank arm includes at least one sprocket attachment portion having a third mounting opening. The sprocket fixing structure secures the first and second sprockets to the crank arm via the first, second and third mounting openings. The alignment tube extends through at least two of the first, second and third mounting openings.

2. 发明授权

US09016169B2 Bicycle sprocket 有权
标题翻译：自行车链轮
公开(公告)号：US09016169B2
公开(公告)日：2015-04-28
申请号：US13539817
申请日：2012-07-02
申请人： Akinobu Sugimoto , Eigo Kuroiwa
发明人： Akinobu Sugimoto , Eigo Kuroiwa
IPC分类号： B62M3/00 , B62M9/10
CPC分类号： B62M9/105 , Y10T74/2165
摘要： A bicycle sprocket is provided that includes an external peripheral edge part and an internal peripheral edge part. The external peripheral edge part has a plurality of metal sprocket teeth. The internal peripheral edge part is positioned radially inward of the external peripheral edge part. The internal peripheral edge part is integrally formed as a one-piece unit with the external peripheral edge part. The internal peripheral edge part has at least one recess that extends radially outward from an inner edge of the internal peripheral edge part toward the external peripheral edge part.
摘要翻译：提供一种自行车链轮，其包括外周缘部和内周缘部。外周缘部具有多个金属链轮齿。内周缘部位于外周缘部的径向内侧。内周缘部与外周缘部一体地形成为一体式的单元。内周缘部具有从内周缘部的内缘向外周缘部径向向外延伸的至少一个凹部。

3. 发明授权

US08375827B2 Bicycle crank assembly 有权
标题翻译：自行车曲柄组合
公开(公告)号：US08375827B2
公开(公告)日：2013-02-19
申请号：US12871118
申请日：2010-08-30
申请人： Eigo Kuroiwa , Masahiro Yamanaka
发明人： Eigo Kuroiwa , Masahiro Yamanaka
IPC分类号： B62M3/00
CPC分类号： B62M3/003 , B62M3/00 , Y10T74/2164
摘要： A bicycle crank assembly is provided with a crank arm including a front side surface and a back side surface. The crank arm has a crank axle mounting portion with a crank axle receiving opening defined by an axle coupling structure. The axle coupling structure at least includes a plurality of full length splines and at least one short spline. The full length splines extends completely in an axial direction of the crank axle receiving opening from a first axial end edge to a second axial end edge. The short spline extends in the axial direction with a truncated end positioned adjacent one of the first and second axial end edges such that the at least one short spline does not extend completely from the other of the first and second axial end edges to the one of the first and second axial end edges.
摘要翻译：自行车曲柄组件设置有包括前侧表面和后侧表面的曲柄臂。曲柄臂具有曲柄轴安装部分，其具有由轴联结结构限定的曲柄轴接收开口。轴联结构至少包括多个全长花键和至少一个短花键。全长花键在曲柄轴接收开口的轴向方向上从第一轴向端边缘到第二轴向端边缘完全延伸。短花键在轴向方向上延伸，其截头端邻近第一和第二轴向端边缘中的一个定位，使得至少一个短花键不会从第一和第二轴向端边缘中的另一个完全延伸到第一和第二轴向端边缘。

4. 发明授权

US08955410B2 Bicycle crank assembly 有权
标题翻译：自行车曲柄组合
公开(公告)号：US08955410B2
公开(公告)日：2015-02-17
申请号：US13539869
申请日：2012-07-02
申请人： Masahiro Yamanaka , Eigo Kuroiwa , Tetsu Nonoshita
发明人： Masahiro Yamanaka , Eigo Kuroiwa , Tetsu Nonoshita
IPC分类号： B62M3/00
CPC分类号： B62M3/00 , B62M3/003 , Y10T74/2164 , Y10T74/2165
摘要： A bicycle crank assembly is basically provided with a crank axle, a first outer shell member, a second outer shell member, a first crank axle supporting member and a second crank axle supporting member. The crank axle has an end portion with an external mounting surface and an internal mounting surface. The first and second outer shell members are arranged relative to each other with a space being formed between the first and second outer shell members. The first crank axle supporting member is disposed on the first outer shell member and supports the external mounting surface of the crank axle. The second crank axle supporting member is disposed on the first outer shell member and supports the internal mounting surface of the crank axle.
摘要翻译：自行车曲柄组件基本上设置有曲柄轴，第一外壳构件，第二外壳构件，第一曲柄轴支撑构件和第二曲柄轴支撑构件。曲柄轴具有外部安装表面和内部安装表面的端部。第一外壳构件和第二外壳构件相对于彼此布置，并且在第一和第二外壳构件之间形成有空间。第一曲柄轴支撑构件设置在第一外壳构件上并且支撑曲柄轴的外部安装表面。第二曲柄轴支撑构件设置在第一外壳构件上并且支撑曲柄轴的内部安装表面。

5. 发明授权

US08246064B2 Bicycle crank assembly 有权
标题翻译：自行车曲柄组合
公开(公告)号：US08246064B2
公开(公告)日：2012-08-21
申请号：US12637796
申请日：2009-12-15
申请人： Eigo Kuroiwa , Masahiro Yamanaka , Shingo Shiraishi
发明人： Eigo Kuroiwa , Masahiro Yamanaka , Shingo Shiraishi
IPC分类号： B62M1/02 , B62M3/00
CPC分类号： B62M3/003 , Y10T74/2164 , Y10T74/2165
摘要： A bicycle crank assembly is provided with a crank arm and an axial gap adjustment device. The crank arm has a crank axle mounting part, an extension part extending from the crank axle mounting part, a pedal attachment part provided on a radial outer end of the extension part and a sprocket attachment part. The axial gap adjustment device includes an adjustment adapter and an adjustment member. The adjustment adapter has a crank arm engagement structure that non-rotatably engages the crank arm, a first crank axle opening, and a first screw part. The adjustment member has a second crank axle opening, and a second screw part threadedly engaged with the first screw part to selectively position the adjustment member relative to the adjustment adapter.
摘要翻译：自行车曲柄组件设置有曲柄臂和轴向间隙调节装置。曲柄臂具有曲柄轴安装部，从曲柄轴安装部延伸的延伸部，设置在延伸部的径向外端的踏板安装部和链轮安装部。轴向间隙调节装置包括调节适配器和调节构件。调节适配器具有不可旋转地接合曲柄臂，第一曲柄轴开口和第一螺钉部分的曲柄臂接合结构。调节构件具有第二曲柄轴开口和与第一螺纹部分螺纹接合以便相对于调节适配器选择性地定位调节构件的第二螺纹部分。

6. 发明授权

US08438947B2 Bicycle crank arm 有权
标题翻译：自行车曲柄臂
公开(公告)号：US08438947B2
公开(公告)日：2013-05-14
申请号：US13267919
申请日：2011-10-07
申请人： Masahiro Yamanaka , Eigo Kuroiwa , Tetsu Nonoshita
发明人： Masahiro Yamanaka , Eigo Kuroiwa , Tetsu Nonoshita
IPC分类号： B62M3/00
CPC分类号： B62M3/00 , B62M3/003 , Y10T74/2164
摘要： A bicycle crank arm has a body member and a cover member that at least partially overlies a peripheral surface of the body member. The body member includes a crank axle attachment portion that has a crank axle receiving opening. A slit extends from the peripheral surface of the body member to the crank axle receiving opening. A fastener bore extends transversely through the slit for adjusting the crank axle receiving opening in size. The peripheral surface of the body member has abutments located on opposite sides of the slit. The abutments are arranged relative to the slit such that the abutments move closer together as the crank axle attachment portion is squeezed to decrease the crank axle receiving opening in size. The cover member contacts the abutments and moves with the abutments as the crank axle attachment portion is squeezed to decrease the crank axle receiving opening in size.
摘要翻译：自行车曲柄臂具有至少部分地覆盖在主体构件的周面上的主体构件和盖构件。主体构件包括具有曲柄轴接收开口的曲轴连接部。狭缝从主体构件的周面延伸到曲轴接收口。紧固件孔横向延伸穿过狭缝，用于调节曲柄轴接收开口的尺寸。主体构件的周面具有位于狭缝的相对侧上的基台。所述基台相对于所述狭缝布置，使得当所述曲柄轴附接部分被挤压以使所述曲柄轴接收开口的尺寸减小时，所述支座移动得更近。当曲柄轴附接部分被挤压以减小曲柄轴接收开口的尺寸时，盖构件接触基座并随着邻接部移动。

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