-
公开(公告)号：US5253890A
公开(公告)日：1993-10-19
申请号：US808763
申请日：1991-12-17
摘要： A bicycle frame includes a top tube provided with bulge-processed regions at its front and rear end portions, formed with bores having axes which intersect a longitudinal axis of the top tube, for accommodating therein the upper end portions of the head tube and the seat tube, respectively. The frame further includes a down tube provided with a bulge-processed region at its front end portion, formed with a bore having an axis which intersects a longitudinal axis of the down tube, for accommodating therein the lower end portion of the head tube, and optionally provided with another bulge-processed region at its rear end portion, formed with a bore having an axis which intersects the longitudinal axis of the down tube, for accommodating therein the lower end portion of the seat tube. The frame has an optimized distribution of effective section modulus in the longitudinal direction of the top and down tubes, to realize a markedly improved rigidity and mechanical strength.
-
公开(公告)号：US4541648A
公开(公告)日：1985-09-17
申请号：US482965
申请日：1983-08-08
申请人： Kikuzo Takamiya , Hiroshi Todoroki
发明人： Kikuzo Takamiya , Hiroshi Todoroki
CPC分类号： B62K19/04 , B62K19/00 , B62K3/02 , Y10T29/49805
摘要： A bicycle frame comprises a main frame having a head tube portion and a seat tube support portion integrally formed of a single blank tube, a seat tube inserted in the seat tube support portion of the main frame and having a cross-shaped lower end formed from a single blank tube by bulge-forming, a metal fitting having an aperture adapted to receive a lower end of the seat tube and chain stay supports on both sides of the aperture, two chain stays having front ends fixed to a mid portion of the main frame and mid portions abutting against the chain stay supports of the metal fitting, and rear forks connecting rear ends of the chain stays and an upper end of the seat tube. Two lateral expanded portions of the cross-shaped lower end are pierced to form apertures into which commercially available bearings are press-fitted to form a hanger portion or bottom bracket of the seat tube.Production processes are simplified to improve the productivity of bicycles. Increased strength of the frame makes it possible to use thinner tubes for the frame to reduce the entire frame weight and hence cost.
摘要翻译： 一种自行车架包括主框架，该主框架具有头管部分和座管管支撑部分，该座管部分由单个坯管整体形成，座管插入主框架的座管支撑部分中，并且具有十字形的下端， 通过凸起形成的单个坯管，具有适于容纳座管的下端的孔的金属配件和在孔的两侧上的链条支撑件，两个链条的前端固定到主体的中部 框架和中间部分抵靠金属配件的链条支撑支撑件，并且后叉将链条的后端和座管的上端连接。 十字形下端的两个横向膨胀部分被刺穿以形成孔，市售的轴承被压配到孔中，以形成座管的衣架部分或底部支架。 简化了生产过程，以提高自行车的生产率。 框架的强度提高使得可以使用较薄的框架用于减小整个框架重量并因此降低成本。
-
公开(公告)号：US4484756A
公开(公告)日：1984-11-27
申请号：US438494
申请日：1982-11-02
IPC分类号： B21D26/02 , B21D26/037 , B21D53/86 , B62K19/00 , B62K3/02
CPC分类号： B21D26/037 , B21D35/006 , B21D53/86 , B62K19/00 , Y10T29/49805
摘要： A blank tube constituting a main frame for a two-wheeled vehicle, comprises a main tubular portion having thicker walls in the proximity of its ends subjected to the largest forces and tubular expanded portions extending from the ends of the tube for receiving a head tube and a seat tube without using separate parts such as lugs. The blank tube further comprises a gradually enlarged diameter portion adjacent to the tubular expanded portions to more improve the strength of the tube.The thicker walls, tubular expanded portions and gradually enlarged diameter portion are formed simultaneously in dies by bulging. Moreover, the dies are formed with recesses, so that the blank tube is formed with protrusions. The protrusions are formed with apertures for passing brake wires or electric wires through the tube. The main tubular portion of the blank tube is formed in a particular cross-section effectively increasing its strength by pressing by means of the dies including corresponding sectional cavities.
摘要翻译： 构成用于两轮车辆的主框架的空白管包括：主管状部分，其在受其施加最大力的端部附近具有较厚的壁，并且从管的端部延伸用于容纳头管， 座管，而不使用单独的部件，例如凸耳。 坯管还包括与管状膨胀部分相邻的逐渐扩大的直径部分，以更好地提高管的强度。 较厚的壁，管状膨胀部分和逐渐扩大的直径部分通过凸出同时形成在模具中。 此外，模具形成有凹部，使得坯管形成有突起。 突起形成有用于使制动线或电线穿过管的孔。 坯管的主管状部分以特定的横截面形成，通过借助于包括相应的截面空腔的模具进行压制而有效地增加其强度。
-
公开(公告)号：US4682509A
公开(公告)日：1987-07-28
申请号：US742224
申请日：1985-06-06
IPC分类号： B62K21/16
CPC分类号： B62K21/16 , Y10T403/32368 , Y10T74/20798 , Y10T74/20804
摘要： An adjustable handlebar for a bicycle according to the invention comprises two handlebar members whose adjacent ends are pivotally supported by two bolts whose extended axes are crossing in front of the bicycle, gear teeth formed in the adjacent ends of the handlebar members so as to pivotally move one handlebar member by pivotally moving the other handlebar member, two sets of isosceles triangle-shaped thrust serrations at adjacent ends of the handlebar members and an upper portion of a handlebar stem, thereby anchoring the handlebar members when the bolts are tightened and moving the adjacent ends of the handlebar members away from the upper portion of the handlebar stem when the bolts are loosened and the handlebar members are rotated, and a cam and cam follower assembly having a lever for engaging and disengaging the serrations, thereby simply changing positions of handlebar members symmetrically. The upper portion of the handlebar stem is formed by a rear part and a front part pivotally movable relative to the rear part in a substantially vertical direction about a substantially horizontal axis in transverse direction of the bicycle and clamped to the rear part by the clamping means, thereby enabling inclined angles of grips of the handlebar to be changed.
摘要翻译： 根据本发明的用于自行车的可调手柄包括两个车把构件，其相邻端部由两个螺栓枢转地支撑，所述两个螺栓的延伸轴线在自行车前方交叉，齿轮齿形成在车把构件的相邻端部中，以便枢转地移动 一个把手构件通过枢转地移动另一把手构件，在把手构件的相邻端部处的两组等腰三角形推力锯齿和手柄杆的上部，从而当螺栓被紧固并且移动相邻 当螺栓松动并且车把构件旋转时，车把构件的端部远离把手杆的上部;以及凸轮和凸轮从动件组件，其具有用于接合和脱离锯齿的杆，从而简单地改变车把构件的位置 对称地。 手柄杆的上部由后部和前部构成，该后部在相对于后部的大致垂直方向上可相对于自行车的横向方向基本上水平的轴线可枢转地移动，并且通过夹紧装置夹紧到后部 从而能够改变车把的倾斜角度。
-
公开(公告)号：US4460192A
公开(公告)日：1984-07-17
申请号：US441133
申请日：1982-11-12
IPC分类号： B62K15/00
CPC分类号： B62K15/008 , Y10T403/32393
摘要： A frame for a folding bicycle includes a base frame having a triangular configuration, the base frame having a pair of back forks and a pair of lower stays joined to a pair of end members respectively. A main pipe is interconnected between the pair of back forks and the pair of lower stays, and a quadric link is connected to the triangular base frame. The guadric link includes the main pipe, a seat pipe, a front pipe, and an upper stay, along with a first pivot pivotally connecting the main pipe and the seat pipe to provide pivotal movement of the seat pipe relative to the main pipe, a second pivot pivotally connecting the main pipe and the front pipe to provide pivotal movement of the front pipe relative to the main pipe, a third pivot pivotally connecting the front pipe and the upper stay to provide pivotal movement between the front pipe and the upper stay, and a fourth pivot pivotally connecting the seat pipe and the upper stay to provide pivotal movement between the seat pipe and the upper stay. The quadric link further includes a foldable link extending between the first and the third pivots, the foldable link having a first position which maintains the quadric link in an uncollapsed condition and a second position in which the quadric link is in a collapsed condition. The foldable link further includes an operable device for maintaining the quadric link in the uncollapsed condition, the operable device being manually operable to permit the quadric link to be collapsed and folded to the collapsed condition.
摘要翻译： 用于折叠自行车的框架包括具有三角形构造的基座框架，所述基座框架具有一对后叉和分别连接到一对端构件的一对下撑杆。 主管在一对后叉和一对下支架之间互连，二次连杆连接到三角形底架。 瓜德连杆包括主管，座管，前管和上支柱，以及枢转地连接主管和座管的第一枢轴，以提供座管相对于主管的枢转运动， 第二枢转枢转地连接主管和前管以提供前管相对于主管的枢转运动;枢转地连接前管和上止动件的第三枢轴，以在前管和上止动件之间提供枢转运动， 以及枢转地连接所述座管和所述上支柱的第四枢轴，以在所述座管和所述上支柱之间提供枢转运动。 二次线连接还包括在第一和第三枢轴之间延伸的可折叠连杆，所述可折叠连杆具有第二位置，所述第一位置将所述二次曲线连杆保持在未折叠状态，以及第二位置，所述二次曲线连杆处于折叠状态。 可折叠连杆还包括可操作的装置，用于将二次曲线连杆保持在未破裂状态，该可操作装置可手动操作以允许二次曲线连杆被折叠并折叠成折叠状态。
-
公开(公告)号：US5115159A
公开(公告)日：1992-05-19
申请号：US601639
申请日：1990-10-23
申请人： Kikuzo Takamiya , Ritsuo Nishimura
发明人： Kikuzo Takamiya , Ritsuo Nishimura
CPC分类号： H02K7/1846 , B62J6/12 , H02K7/116
摘要： A built-in generator arranged within a hub of a bicycle wheel including a hub member of a wheel rotatably fitted on an axle fixed to a frame of the bicycle, a stationary hollow cylinder fixed to the axle in the hub member, a generating coil unit provided in the stationary hollow cylinder and fixed thereto, a rotor formed integrally with a magnet rotatably provided on the axle, and a planetary transmission device for transmitting rotation of the hub member to the axle at increased speeds. The planetary transmission device is formed of at least one planetary roller device which includes a sun roller integral with the magnet and rotatably provided on the axle, a plurality of planet rollers arranged to be circumscribed on the sun roller, a planet carrier rotatably supporting the planet rollers, and an elastic ring circumscribing on the planet rollers. The planet rollers are in pressure-contact with the elastic ring and the sun roller.
-
公开(公告)号：US4920827A
公开(公告)日：1990-05-01
申请号：US317181
申请日：1989-02-28
申请人： Kikuzo Takamiya , Yoshitaka Tamura , Yoichi Shibayama , Ritsuo Nishimura , Kiyofumi Hirai , Hiromitsu Serizawa
发明人： Kikuzo Takamiya , Yoshitaka Tamura , Yoichi Shibayama , Ritsuo Nishimura , Kiyofumi Hirai , Hiromitsu Serizawa
CPC分类号： F16H37/086 , F16H15/54
摘要： A stepless speed change device has an input shaft and an output shaft. The device inlcudes a planetary carrier proviced at an inner end of the input shaft, a sun gear provided at an inner end of the output shaft to be in mesh with planet gears carried on the planetary carrier, and an internal gear in mesh with the planet gears to form a planetary gear. The device further includes a driven rotor rotatable about the input shaft and in the form of a hollow cylinder having flanges at both ends and concentrically connected to the internal gear, a driving rotor enclosing the driven rotor and including two members connected to the input shaft on both sides of the driven rotor, and an intermediate friction transmission ring whose eccentricity is adjustable and interposed between the flanges of the driven rotor and between the two members of the driving rotor for transmitting rotating power therebetween.
-
公开(公告)号：US4460191A
公开(公告)日：1984-07-17
申请号：US378291
申请日：1982-05-14
IPC分类号： B62K15/00
CPC分类号： B62K15/008
摘要： A foldable bicycle frame includes a lower frame and a front frame pivotally mounted on the lower frame, the lower frame having fork elements supporting a rear wheel axle. A seat tube is pivotally mounted on the lower frame. A front support stay is pivotally mounted on the front frame and is also pivotally mounted on the seat tube. A seat stay has an upper section and a lower section, the upper section being pivotally connected to the seat tube, the lower section being pivotally connected to the lower frame at the fork elements, the upper and lower sections each having a pair of upper and lower stay members respectively and a locking plate device connecting the upper and lower sections and operable to selectively provide a pivotal connection between the upper and lower sections to provide for folding of the bicycle and to effect a rigid connection between the upper and lower sections to provide assembled operability of the bicycle frame.
摘要翻译： 可折叠的自行车车架包括下框架和枢转地安装在下框架上的前框架，下框架具有支撑后轮轴的叉形元件。 座管可枢转地安装在下框架上。 前支撑支架可枢转地安装在前框架上并且还可枢转地安装在座管上。 座椅支撑件具有上部和下部，上部可枢转地连接到座管，下部在叉形元件处可枢转地连接到下框架，上部和下部各自具有一对上部和 下部支撑构件和连接上部和下部的锁定板装置，并且可操作以选择性地在上部和下部之间提供枢转连接，以提供自行车的折叠并且实现上部和下部之间的刚性连接，以提供 组装的自行车车架的操作性。
-
公开(公告)号：US5163884A
公开(公告)日：1992-11-17
申请号：US694094
申请日：1991-05-01
CPC分类号： F16H15/14 , F16H37/0853
摘要： A friction-type stepless speed change device includes a frictional transmission elements composed of a pair of driving discs connected to an input shaft, and an annular driven disc connected to an output shaft and embraced between and urged against opposite conical surfaces of the driving discs into wedge-engagement to generate frictional force and allow power transmission from the driving discs to the driven disc. The driving discs are at a variable eccentricity relative to the driven disc, with which an effective pitch diameter of the driving discs is varied to effect a stepless speed change. For reducing the size of the frictional transmission elements while preserving a required torque capacity, the device further comprises a driving rotary unit for transmitting power from the input shaft to the driving discs at an increased rotational speed, and a driven rotary unit for transmitting power from the driven disc to the output shaft at a reduced rotational speed.
-
公开(公告)号：US4838122A
公开(公告)日：1989-06-13
申请号：US95851
申请日：1987-09-14
申请人： Kikuzo Takamiya , Sadao Mabuchi , Kazuhiro Inoue
发明人： Kikuzo Takamiya , Sadao Mabuchi , Kazuhiro Inoue
IPC分类号： B62M11/18
CPC分类号： B62M11/18
摘要： A speed change device for a bicycle comprises a carrier jointed to a crank arm and a plurality of planet gears rotatably supported on a plurality of shafts arranged in a circle on said carrier. Each of the planet gears includes a plurality of planet gear elements different in number of teeth. The device further comprises an internal gear in mesh with ones of the planet gear elements of the planet gears and formed in an outer circumference with a sprocket to form a driven rotary body, one-way clutches for connecting the driven rotary body to the carrier, a plurality of sun gears provided on a crankshaft and in mesh with the planet gear elements of the planet gears, respectively, and one-way clutches provided between inner circumferences of the sun gears and a fixed bearing enclosing the crankshaft. One of the one-way clutches last mentioned is able to connect selectively.
摘要翻译： 用于自行车的变速装置包括连接到曲柄臂的托架和可旋转地支撑在所述托架上以圆圈布置的多个轴的多个行星齿轮。 每个行星齿轮包括多个不同齿数的行星齿轮元件。 该装置还包括与行星齿轮的行星齿轮元件中的一个啮合的内齿轮，并且在具有链轮的外圆周上形成以形成从动旋转体，用于将从动旋转体连接到载体的单向离合器， 分别设置在曲轴上并与行星齿轮的行星齿轮元件啮合的多个太阳轮，以及设置在太阳齿轮的内周之间的单向离合器和封闭曲轴的固定轴承。 最后提到的单向离合器之一是能够有选择地连接。
-
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.016 秒)
