Drive Surfaces On Belt Formed By Spherical Or Hemispherical Elements Patents (Class 474/203)
  • Patent number: 10415669
    Abstract: A roller chain with a simple structure is provided, which can mitigate impact load on rollers due to collision with sprockets and can lengthen roller life, as well as minimize interference between the sprockets and inner plates. A roller chain includes rollers that are formed in a cylindrical shape tubularly connected continuously in axial and circumferential directions of the rollers. Each of the rollers is curved such that an inner diameter at both ends thereof differs from that of a middle part, and that their outer diameter at both ends differs from that of the middle part, so that the rollers deform elastically when contacting sprockets S as the rollers are sandwiched between bushings and the sprockets.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 17, 2019
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventor: Hirokazu Sano
  • Patent number: 8794387
    Abstract: A traction system includes a composite rope (1), especially for an elevator. The composite rope (1) is driveable by a traction sheave (6). The traction system has a composite rope that is easy to handle, whereby high traction forces can be transferred, and the composite rope enables a narrower drive unit than known belt technology. To this end, the composite rope has parallel individual tension members (4) surrounded by an elastomer material which are interconnected by an elastomer connecting layer (5) on one side, and the tension members (4) engage in corresponding grooves (7) of the traction sheave (6). The penetration depth of the individual ropes (2) of the tension members (4) in the grooves of the traction sheave (6) is at least 25% of the diameter (d) of the individual ropes (2).
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 5, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Patent number: 8789658
    Abstract: A traction device includes tension members (2) coated with an elastomer material to form jacketed tension members (3). The jacketed tension members (3) are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space (6) between each two mutually adjacent ones of the jacketed tension members (3). The jacketed tension members (3) are connected at the back thereof by a back layer. The clear space (6) begins on the side facing away from the back layer (4) and extends at least beyond the center point (5) of the tension member, and the ratio of the second diameter (d2) of the jacketed tension member (3) in relation to the first diameter (d1) of the tension member (2) is between 1.05 and 2.25.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 29, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Publication number: 20130037226
    Abstract: Provided is an endless operation cord that is easy to replace. The present invention provides an operation cord including: a main cord having one and the other ends; a first coupling part disposed at the one end; and a second coupling part disposed at the other end. The first and second coupling parts can be coupled together directly or via a coupling member and can be coupled or uncoupled by means of a relative rotation between the adjacent coupling parts or between the adjacent coupling parts and coupling member or a relative movement in a direction other than a length direction of the main cord between the adjacent coupling parts or between the adjacent coupling parts and coupling member.
    Type: Application
    Filed: April 27, 2011
    Publication date: February 14, 2013
    Applicant: TACHIKAWA CORPORATION
    Inventors: Hajime Nakamura, Seiya Abo, Eiji Kawai, Masaya Yamaguchi, Shojiro Uehara
  • Patent number: 8215094
    Abstract: The invention relates to a chain suitable to moor or anchor boats, to lash cargo in road, rail, water and air transportation or for conveying, hoisting, suspending or lifting applications, said chain comprising a plurality of interconnected links. More in particular the invention relates to a chain suitable for the above stated uses comprising a plurality of interconnected links, at least part of the links comprising polyolefin fibers and in particular ultrahigh molecular weight polyethylene (UHMWPE) fibers. The invention also relates to a method for enhancing the strength of such a chain.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: July 10, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Dietrich D. Wienke, Christiaan Henri Peter Dirks, Martinus Johannes Nicolaas Jacobs
  • Patent number: 8171714
    Abstract: The invention relates to a chain suitable to moor or anchor boats, to lash cargo in road, rail, water and air transportation or for conveying, hoisting, suspending or lifting applications, said chain comprising a plurality of interconnected links. More in particular the invention relates to a chain suitable for the above stated uses comprising a plurality of interconnected links, at least part of the links comprising polyolefin fibers and in particular ultrahigh molecular weight polyethylene (UHMWPE) fibers. The invention also relates to a method for enhancing the strength of such a chain.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 8, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Dietrich D. Wienke, Christiaan Henri Peter Dirks, Martinus Johannes Nicolaas Jacobs
  • Publication number: 20080280715
    Abstract: There is disclosed a glass-fiber coating liquid for forming a coating layer on a glass fiber cord, prepared in the form of an emulsion by dispersing a phenol resin, a vinylpyridine-stylene-butadiene copolymer (B) and a chlorosulfonated polyethylene (C) into water to form a coating layer on a glass fiber cord, wherein the phenol resin is a monohydroxybenzene-formaldehyde resin (A) obtained by reaction of monohydroxybenzene (D) and formaldehyde (E).
    Type: Application
    Filed: September 27, 2005
    Publication date: November 13, 2008
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Toshiya Monden, Hiroyuki Hyakutake, Katsuhiko Ogaki
  • Patent number: 7442139
    Abstract: In a slat conveyor, slats for supporting conveyed articles and personnel extend between two side-by-side, spaced, endless roller chains engaged with driving sprockets at one end of the conveying path and driven sprockets at the other end. At a location radially outward from the pitch circle, the distance between the front surface of the sprocket teeth to the tooth center line is at least as great as the distance from the centerline to the front surface at the pitch circle. The tooth faces merge smoothly with the tooth gap bottom, and the root diameter is smaller than the root diameter according to ISO standards.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: October 28, 2008
    Assignee: Tsubakimoto Chain Co.
    Inventors: Aizoh Kubo, Hiroki Ishida, Masatoshi Sonoda
  • Patent number: 7294078
    Abstract: An over-molded beaded driving cable which has an inner core, a plurality of inner core structures. An outer jacket may encompass the inner core and inner core structures. Each of a plurality of outer beads concentrically surrounds an inner core structure. The outer beads are over-molded in this position, forming an interlocking inner core structure and outer bead configuration capable of high load and high flexible performance. An end fitting placed at each end portion of the inner core provides for a driving cable assembly with a variety of end fitting configurations, including a closed loop connection, for automotive and non-automotive applications. Alternatively, the over-molded beaded driving cable has a plurality of clamps and/or pins surrounded by the outer beads respectively. The cables may also be provided with seamless connection structure for forming closed loops.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: November 13, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Xinhua (Sam) He, Mansour Ashtiani
  • Patent number: 6849016
    Abstract: An over-molded beaded driving cable which has an inner core, a plurality of inner core structures. An outer jacket may encompass the inner core and inner core structures. Each of a plurality of outer beads concentrically surrounds an inner core structure. The outer beads are over-molded in this position, forming an interlocking inner core structure and outer bead configuration capable of high load and high flexible performance. An end fitting placed at each end portion of the inner core provides for a driving cable assembly with a variety of end fitting configurations, including a closed loop connection, for automotive and non-automotive applications.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: February 1, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Mansour Ashtiani, Xinhua (Sam) He
  • Publication number: 20030220165
    Abstract: An over-molded beaded driving cable which has an inner core, a plurality of inner core structures. An outer jacket may encompass the inner core and inner core structures. Each of a plurality of outer beads concentrically surrounds an inner core structure. The outer beads are over-molded in this position, forming an interlocking inner core structure and outer bead configuration capable of high load and high flexible performance. An end fitting placed at each end portion of the inner core provides for a driving cable assembly with a variety of end fitting configurations, including a closed loop connection, for automotive and non-automotive applications. Alternatively, the over-molded beaded driving cable has a plurality of clamps and/or pins surrounded by the outer beads respectively. The cables may also be provided with seamless connection structure for forming closed loops.
    Type: Application
    Filed: May 28, 2003
    Publication date: November 27, 2003
    Inventors: Xinhua (Sam) He, Mansour Ashtiani
  • Publication number: 20030166426
    Abstract: An improvement relating to an infinitely variable ratio transmission having a pair of oppositely oriented variable diameter torque input and output pulleys is disclosed wherein the conical surfaces of the pulleys include a multiplicity of axially and circumferentially movable sprocket bars to accommodate the fixed length of an inextensible drive belt or chain wrapping about the pulleys.
    Type: Application
    Filed: April 2, 2003
    Publication date: September 4, 2003
    Inventor: Lawrence A. Anderson
  • Patent number: 6193624
    Abstract: A torque transfer device allows torque to be input at one point of the device and transferred to another point of the device, at which the power or torque is taken from the device. The device incorporates a continuous direct drive comprised of a plurality of individual, and unconnected, pins which advance each other to provide the drive. The pins have enlarged ends and reduced centers. The centers of the pins ride on a centrally disposed shedder which acts as a guide rail. The direct drive communicates with the drive sprockets, traveling through the drive sprockets to rotate the drive sprockets to transfer torque.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: February 27, 2001
    Assignee: Victory in Jesus Ministries, Inc.
    Inventor: David R. Lund
  • Patent number: 5615577
    Abstract: An ultrathin transmission mechanism for all types of automobile power windows is provided, in which the gears thereof each is formed at its shaft hole periphery with two laterally outward projected flanges for positioning the gears on the transmission mechanism with reduced overall width or thickness required for mounting the transmission mechanism. A transmission chain thereof is partially coated at its cord segments exposed between every two ball-type teeth with a layer of material the same as that used to make the ball-type teeth, thereby preventing the transmission chain from becoming extended even after a long term period of use and to always provide high-precision displacement.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: April 1, 1997
    Inventor: Tse-Hsing Chen
  • Patent number: 5488881
    Abstract: A mechanical transmission mechanism with rolling unit includes an input member, an output member and a transmission medium for transmitting a mechanical input. The input member includes a driving gear which is enveloped in a casing with a peripheral channel that is confined between a partial circumference of the driving gear and an inner face of the casing. The casing has two openings formed on both ends of the peripheral channel and connected respectively and tangentially to a pair of guide channels so as to form a guide path that extends between the input and output members. The transmission medium is a plurality of rolling bodies which are packed in the guide path and which are disposed alternatingly in juxtaposed lines along the guide path. Each of the rolling bodies is in rolling contact with adjacent rolling bodies.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: February 6, 1996
    Inventor: Hung-Chung Lin
  • Patent number: 5411445
    Abstract: A ball chain for interior decoration, sprocket drive or the like which includes a connecting mechanism in the form of a wire or yarn, a multiplicity of chain balls secured in place at equally spaced intervals along a length of the connecting mechanism, and a coupling interposed between adjacent chain balls. A splicing mechanism provided for splicing the ball chain includes a socket having a cavity dimensioned to receive the coupling.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: May 2, 1995
    Assignee: Yoshida Kogyo K.K.
    Inventor: Kiyoshi Oda
  • Patent number: 5006097
    Abstract: A control unit for single and double track blinds is provided and consists of a sprocket wheel having a hub rotatably carried in the center of a passageway within a housing. An operating handle extends into the hub that extends through a central aperture in a front cover plate on the housing. The operating handle can be turned to rotate the sprocket wheel, thus driving a bead chain through the passageway to operate louvers in the single and double track blinds.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: April 9, 1991
    Inventor: Henry Cook
  • Patent number: 4957472
    Abstract: A snow vehicle and more particularly an improved track and driving arrangement therefor. The track has lugs on one side that are engaged with teeth of a drive sprocket for driving the track in a positive manner. The opposite side of the track and that which faces the ground has pairs of teeth disposed on opposite sides of the track drive lugs and each having different configurations which are mirror images of each other. One of the teeth of the pairs is configured to provide good traction in soft snow on its forward face and good traction on hard snow in its rearward face while the other tooth provides the opposite effects so that good traction will be provided in either direction of drive.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: September 18, 1990
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Tomio Nakano
  • Patent number: 4863420
    Abstract: A sprocket and drive assembly for a tracked vehicle which includes individual track segments. Each track segment includes a rounded portion in the form of a number of spheres or a single cylinder, which is secured to an endless cable. The sprocket has a number of circumferential recesses in the form of cylindrical troughs or concave pockets. Rotation of the sprocket drives the track segments via the drive members which are engaged within the complementary shaped recesses of the sprocket.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: September 5, 1989
    Inventor: Jessie T. Ivy
  • Patent number: 4806066
    Abstract: A robotic arm and control system comprising a multi-axis, open-loop system of coupled structural members, wherein each structural member is pivotably coupled to one another to form a number of joints, wherein position calibration is provided by way of position sensors disposed at each joint, and controls for manipulating each joint in a predetermined manner and for monitoring the output of each position sensor, the controls first causing all structural members to move with respect to one another so that each position sensor outputs a home signal, the controls then manipulating each structural member in a predetermined sequence until each structural member is caused to be within a predetermined distance from its home position.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: February 21, 1989
    Assignee: Microbot, Inc.
    Inventors: Guy W. Rhodes, John W. Hill, Clement M. Smith, Thomas M. Grimm
  • Patent number: 4609365
    Abstract: A universal or ball pivot-link chain is guided in two substantially tubular-shaped guide channels and is deflected or turned between such guide channels by means of a driven chain or sprocket wheel. At its circumference the chain wheel possesses a profiled structure formed by recesses or depressions which substantially correspond to the profile or outer contour of the universal link chain. The guide channels extend to the circumference of the chain wheel and form in conjunction therewith a respective transfer or transition region. At each such transfer region the chain wheel protrudes by an amount, essentially corresponding to the depth of the recesses, into the interior of the related guide channel. At such transfer or transition regions the chain links are guided both by the chain wheel and the guide channels. Consequently, there is ensured for a gentle and jerk-free transfer of the chain links from the chain or sprocket wheel to the guide channels and vice versa.
    Type: Grant
    Filed: October 4, 1982
    Date of Patent: September 2, 1986
    Assignee: Feramatic AG
    Inventor: Jurg Eberle
  • Patent number: 4424619
    Abstract: A positive drive system including a coined drive cable (26) having a plurality of regularly spaced nodules (29) rigidly attached along at least a portion of its length, and one or more positive drive sheaves (20, 22, 23, 24) configured to receive the cable and its nodules to provide a positive, nonslip drive engagement between the drive cable and the sheaves.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: January 10, 1984
    Inventor: Rene A. Conrad
  • Patent number: 4424852
    Abstract: A bead-chain drive system for operating and positioning a window shade comprises a roller having a window shade mounted thereon, the roller being urged by the weight of the window shade in a direction to lower the shade. The drive system further includes a sprocket for driving the roller that is driven by a bead-chain, trained about the sprocket. The bead-chain includes a chain length urged toward the sprocket by the weight of the shade applied to the roller and the sprocket. The drive system also includes a bead-chain retainer having a holding device operative to hold at least one of the beads of the chain length against movement toward the sprocket to position the window shade and from which the chain length can be easily freed upon movement thereof away from the sprocket.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: January 10, 1984
    Inventor: Thomas P. Hopper
  • Patent number: 4367067
    Abstract: A ball chain positive drive stepless transmission comprising two V sheaves deployed on a pair of parallel shafts and an endless ball chain serving as transmission medium therebetween and characterized in, each sheave having a V shaped groove formed by two opposite bevel members with an undulating surface readily disposed thereon. Each link of the chain has a ball set adapted to be positively engaged with the undulating surface and also to enable the stepless change of speed while the unit is at rest.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: January 4, 1983
    Inventor: Yau-Shing Chao
  • Patent number: 4315751
    Abstract: A positive drive system including a coined drive cable (26) having a plurality of regularly spaced nodules (29) rigidly attached along at least a portion of its length, and one or more positive drive sheaves (20, 22, 23, 24) configured to receive the cable and its nodules to provide a positive, nonslip drive engagement between the drive cable and the sheaves.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: February 16, 1982
    Inventor: Rene A. Conrad
  • Patent number: 4283184
    Abstract: A toothed transmission chain or belt is described for use in coupling spaced sprockets or gears. The chain is formed of molded polyurethane or other plastic having sprocket engaging teeth molded onto a supporting unitary molded backing. The molded portion is reinforced by one or more metal cables which are embedded in the molded plastic portion. An improved engagement with the sprockets is provided for by providing lateral slots in the chain teeth thereby giving them variable width. Additionally, the chain may be furnished or originally formed in indeterminate lengths and then fashioned into an endless chain by exposing and splicing together the ends of the steel reinforcing cables.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: August 11, 1981
    Assignee: Winfred M. Berg, Inc.
    Inventor: Winfred M. Berg