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1.发明公开公开(公告)号：US20240101223A1
公开(公告)日：2024-03-28
申请号：US18325859
申请日：2023-05-30
Applicant: Praxis Works LLC
Inventor： Gregor SCHUSTER
Abstract: A control device for controlling a transmission ratio between a traction means and a sprocket set rotatable about an axle may include at least two sprockets alternatively wrapped around by the traction means. At least one of the sprockets may include several independently adjustable rim segments. Adjustment of the rim segments in relation to a fixed plane may be effected by a control device in a direction substantially transverse to the plane. The control device includes at least one electrically actuatable control element, e.g., a servomotor. The at least one control element is configured to rotate with the sprockets.
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公开(公告)号：US11661145B2
公开(公告)日：2023-05-30
申请号：US16384485
申请日：2019-04-15
Applicant: Praxis Works LLC
Inventor： Gregor Schuster
Abstract: A control device for controlling a transmission ratio between a traction means and a sprocket set rotatable about an axle may include at least two sprockets alternatively wrapped around by the traction means. At least one of the sprockets may include several independently adjustable rim segments. Adjustment of the rim segments in relation to a fixed plane may be effected by a control device in a direction substantially transverse to the plane. The control device includes at least one electrically actuatable control element, e.g., a servomotor. The at least one control element is configured to rotate with the sprockets.
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公开(公告)号：US11326671B2
公开(公告)日：2022-05-10
申请号：US16316420
申请日：2017-07-10
Applicant: DRIVE TECHNOLOGY HOLLAND LTD. [NL/NL]
Inventor： Marinus Johannes Cornelis Van Tilburg , Henricus Josephus Maria Essens , Johannes Constant Maria De Wijs , Hubertus Hendrikes Adrianus Van Kasteren
Abstract: The invention relates to a transmission comprising two circulating elements and a transmission element, such as a toothed belt. At least one circulating element comprises a number of contact elements for contact with the transmission element which determine a running radius of the transmission element, a radial guide for the contact elements, along which the latter are radially displaceable, displacement means for displacing the contact elements in the radial direction, wherein the transmission element has engagement elements such as teeth. Each of the contact elements comprises a base part which is in contact with the radial guide and with the displacement means, and an engagement member which is connected to the base part and is radially movable with respect to the base part, wherein the engagement member of at least one of the number of contact elements of the respective circulating element is in positive-locking contact with the transmission element.
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公开(公告)号：US20220018422A1
公开(公告)日：2022-01-20
申请号：US17375550
申请日：2021-07-14
Applicant: James Leslie Kalkstein
Inventor： James Leslie Kalkstein
Abstract: A continuously variable transmission including an input pulley having a first subassembly supported upon a first rotatably driven shaft and an output pulley having a second subassembly supported upon a second rotatable shaft. Each subassembly includes a plurality of left link elements extending from segmented pulley segments to a first shaft supported rotating element, along with a plurality of right link elements extending from the segmented pulley segments to a second shaft supported rotated element for positioning the segmented pulley segments in an outwardly circumferentially arrayed fashion about each of the first and second shafts. Axial displacement of a first and second pairs of said first and second shaft supporting elements in each of the input and output pulley subassemblies inversely varying a collective diameter formed by said arrangements of segmented pulley segments in order to maintain a constant circumference of a belt supported about the segmented pulley segments for each of the input and output pulleys.
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公开(公告)号：US10422418B2
公开(公告)日：2019-09-24
申请号：US15542231
申请日：2016-01-05
Applicant: DRIVE TECHNOLOGY HOLLAND LTD.
Inventor： Marinus Johannes Cornelis Van Tilburg , Henricus Josephus Maria Essens , Johannes Constant Maria De Wijs , Hubertus Hendrikes Adrianus Van Kasteren
Abstract: A transmission element for a transmission such as a continuously variable transmission, including an elongate flexible endless carrier element provided with a number of receiving spaces with an opening and with a passage extending through the number of receiving spaces in the longitudinal direction of the carrier element, a number of engaging elements which are each received in a receiving space for movement between an active position and a passive position and which in the active position protrude further inward than in the passive position and at least out of the opening of this receiving space so as to be able to engage in the active position with a pulley of the transmission, and a spring element for providing resistance for each of the number of engaging elements during movement from the active position in the direction of the passive position.
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Patent Agency Ranking
公开(公告)号：US20180231109A1
公开(公告)日：2018-08-16
申请号：US15513803
申请日：2015-05-13
Applicant: HONDA MOTOR CO., LTD.
Inventor： Andrii Pydin
CPC classification number: F16H9/16 , F16H9/20 , F16H55/48 , F16H55/52 , F16H55/54 , F16H55/56 , F16H59/70 , F16H2059/702
Abstract: A stepless transmission transmits a driving force by an endless transmission member (5) wound around a V-groove (6) of an input pulley (1). The input pulley (1) has moving parts (9) which are fastened by threaded engagement so as to be axially movable with respect to a transmission case (3) and have ring gears (10), to which rotation can be input from the outer periphery sides, and pulley half discs (13) which are relatively rotatable with respect to the moving parts (9), which axially move integrally with the moving parts (9) and which are contactable with an endless transmission member (5). The pulley half discs (13) and an input shaft 2, which is disposed at the center of the pulley half discs (13), rotate together as one piece. The ring gears (10) are each rotationally driven from a drive source of the same drive member.
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公开(公告)号：US20170241521A1
公开(公告)日：2017-08-24
申请号：US15588293
申请日：2017-05-05
Applicant: SRI International
Inventor： Karen Shakespear Koenig , Pablo Eduardo Garcia Kilroy
Abstract: A belt wave drive transmission system and method are shown involving a first rotor (10) having a first drum configured to rotate about its axis of rotation and a second rotor (20) having a second drum configured to rotate about its axis of rotation, where the first rotor (10) is constrained to orbit concentrically about the axis of rotation of the second drum. A belt (30) encircles the first and second drums to couple the first (10) and second (20) rotors such that the first rotor (10) moves concentrically around the second rotor (20) as the belt (30) advances about a circumference of the second drum. In further refinements, the system and method involve electrically controllably coupling at least one of the first and second rotors to the belt.
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公开(公告)号：US09334944B2
公开(公告)日：2016-05-10
申请号：US14452126
申请日：2014-08-05
Applicant: Deere & Company
Inventor： Andy B. Appleton
Abstract: A variable-speed belt drive pulley assembly includes a plurality of pulley segments, a plurality of sliders, and a rotatable hub. Each segment is adapted to engage a drive belt and is mounted to an outer end of a corresponding slider which is slidably received by the hub. Each slider may be a pair of rods extending from the body in parallel relationship to each other. The hub has a plurality of bores. Each bore slidably receives a corresponding one of the rods. An actuator device moves the segments radially inwardly and outwardly with respect to the hub. A coil spring is mounted on each the rods, and is biased to urge one of the segments radially outwardly.
Abstract translation: 变速皮带驱动皮带轮组件包括多个皮带轮部分，多个滑块和可旋转轮毂。 每个段适于接合传动带并且安装到由轮毂可滑动地接收的相应滑块的外端。 每个滑块可以是从主体以彼此平行的关系延伸的一对杆。 轮毂有多个孔。 每个孔可滑动地接收相应的一个杆。 致动器装置相对于轮毂径向向内和向外移动分段。 螺旋弹簧安装在每个杆上，并被偏压以将部分径向向外推动。
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公开(公告)号：US20050192136A1
公开(公告)日：2005-09-01
申请号：US10788567
申请日：2004-02-27
Applicant: John Allard
Inventor： John Allard
Abstract: A variable diameter sprocket including a support and at least three radially movable sprocket portions mounted to the support. A diameter changing mechanism is provided to selectively move the sprocket portions.
Abstract translation: 包括支撑件的可变直径链轮和安装到支撑件的至少三个径向可动的链轮部分。 提供了一种直径改变机构来选择性地移动链轮部分。
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公开(公告)号：US5667449A
公开(公告)日：1997-09-16
申请号：US527789
申请日：1995-09-13
Applicant: Curtis E. Dalton
Inventor： Curtis E. Dalton
Abstract: A multi-speed transmission is provided which employs inflatable diaphragms to alter drive ratio. Particularly applicable to bicycles, the transmission is composed of a diaphragm mounted at the pedal axis and another mounted at the drive wheel axis, with a nylon drive belt connecting the two. These diaphragms are each inflated and deflated by way of pressurized cylinders mounted on the bicycle. Pedaling of the bicycle turns the pedal axis diaphragm which, in turn, drives the rear wheel diaphragm via a nylon drive belt. Pressure tubes carry the pressurized fluids from each of the cylinders to their respective diaphragm. Standard shifter mechanisms are used each of which, when moved, moves a piston within one of the cylinders, changing the pressure in that cylinder and the inflation of its respective diaphragm.
Abstract translation: 提供了一种多速变速器，其采用充气隔膜来改变传动比。 特别适用于自行车，传动装置由安装在踏板轴上的隔膜和另一个安装在驱动轮轴上的尼龙驱动带组成。 这些隔膜各自通过安装在自行车上的加压缸充气和放气。 自行车踏板转动踏板轴线隔膜，后者又通过尼龙驱动带驱动后轮隔膜。 压力管将加压流体从每个气缸运送到它们各自的隔膜。 使用标准移位机构，每个移动机构在移动时移动一个气缸内的活塞，改变该气缸中的压力和各自隔膜的膨胀。
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