Connector Or Bearing Member Extending Through Or Positioned In Laterally Aligned Openings In Adjacent Links Is Noncircular In Transverse Cross Section Patents (Class 474/214)
  • Patent number: 9797472
    Abstract: A plate-link chain for a continuously variable transmission of a motor vehicle. The chain includes relatively long and relatively short chain links. In long-short regions the chain links are arranged to overlap in a chain running direction by arranging plate-links disposed adjacent to one another transversely with respect to the chain running direction, and coupled to one another by pairs of rocker pressure members. In the long-short regions the plate-links of the chain links are arranged in a double configuration or in a triple configuration. Spacing or biasing elements are provided between pairs of side-by-side plate-links to provide damping of the plate-link chain when in operation.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: October 24, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stephan Penner, Jürgen Ochs, Anna Ruf
  • Patent number: 9464688
    Abstract: Three links within one width-direction unit are included in respectively different link units. The links in the first row and the sixth row from the right end and the left end of a chain are included in the same link unit. The links in the second row and the fifth row are included in the same link unit. The links in the ninth row and the tenth row are included in the same link unit other than the link unit in which the links in the second row and the fifth row are included. With the above structure, the stress amplitude of the links forming a chain for a chain-type continuously variable transmission can be reduced.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: October 11, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Teruhiko Nakazawa, Ichiro Tarutani, Yuji Nagasawa, Shinji Yamane, Keisuke Mori
  • Patent number: 9046150
    Abstract: A silent chain includes guide plates each of which has a cut-away portion on its inner side and a cut-away portion on its outer side for allowing elastic deformation of the guide plate in the longitudinal direction of the chain so that bowing of the connecting pins of the chain is reduced, and galling of the connecting pins and unbalance of the loads on the link plates of the chain are suppressed. The deepest parts of the respective cut-away portions are longitudinally offset from each other so that longitudinal elastic deformation can occur without impairing the tensile strength of the guide plate.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 2, 2015
    Assignee: Tsubakimoto Chain Co.
    Inventors: Yoshiki Motoshima, Masatoshi Sonoda, Naoki Okada, Yoshinori Tsujino
  • Patent number: 8974335
    Abstract: In a silent chain, frictional losses and noise are reduced, and power transmitting efficiency is improved, by making the inner profile of each guide plate sufficiently high in relation to a link plate tooth of a link plate overlapped by each said guide plate that engagement between a sprocket tooth and said link plate tooth takes place before engagement of the last mentioned sprocket tooth with said guide plate, even when the chain moves laterally. The tensile hardness of the guide plates is sufficiently low in relation to the bending rigidity of the connecting pins of the chain to prevent substantial warping of the guide plates as a result of tension acting on the chain. The back surfaces of the guide plates are configured to avoid contact with a sliding contact surface of a chain guide on which a back surfaces of the link plates of said chain can slide.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 10, 2015
    Assignee: Tsubakimoto Chain Co.
    Inventor: Syota Miyanaga
  • Patent number: 8968132
    Abstract: In a transmission chain including alternately interleaved and articulably connected sets of link plates, the link plates of least one of the sets have back surfaces arranged for sliding contact with a chain guide. These back surfaces have a convex, substantially arc-shaped, curvature in the longitudinal direction of the chain, and a convex, substantially arc-shaped, curvature in the widthwise direction. The radius of curvature of the widthwise curve of the back surface of each of the link plates of the at least one set is at least as great as the radius of curvature of the curve of the same link plate in the longitudinal direction.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: March 3, 2015
    Assignee: Tsubakimoto Chain Co.
    Inventor: Syota Miyanaga
  • Patent number: 8894524
    Abstract: A power transmission chain includes a plurality of link units which are aligned in a chain advancing direction, and each link unit includes a plurality of link plates which are aligned in a chain width direction W. The plurality of link plates include link plates which are punched out of a material by pressing to first and second specifications. A punching direction of the link plates to the first specification and a punching direction of the link plates to the second specification are made opposite to each other.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 25, 2014
    Assignees: JTEKT Corporation, Todo Kogyo Co., Ltd
    Inventors: Kozue Matsumoto, Seiji Tada, Shigeo Kamamoto, Yasutaka Hojo
  • Publication number: 20140335988
    Abstract: An object of the present invention is to provide a chain reducing friction caused by sliding between the pin and the inner plate, whereby durability is improved, a frictional loss is reduced, and the reduction in size and cost can be implemented. In a silent chain, a guide row and a non-guide row, which are adjacent to each other in a longitudinal direction, are connected together in a bendable manner using a single pin movably inserted into a second pinhole of an inner plate. A hole peripheral wall surface forming the second pin hole has a plate rolling surface, and an outer peripheral surface of the pin has a pin rolling surface. During chain bending, the plate rolling surface rolls on the pin rolling surface.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 13, 2014
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Yoshiki Motoshima
  • Patent number: 8733076
    Abstract: An assembling method for a torque transmission chain, including a step of manufacturing split pieces of the chain in such a manner that a predetermined number of pins are held by a linear pin holding jig and then a predetermined number of links are press-fitted to the pins; a step of linearly arranging the split pieces so as to overlap split piece coupling links each arranged at any one of both ends of each of the split pieces; a step of inserting the pin through the overlapped split piece coupling links; and a step of pulling both ends of a whole of the plurality of split pieces coupled to each other via the split piece coupling links to thereby fix the pin to a pin fixing portion of the split piece coupling links.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: May 27, 2014
    Assignee: JTEKT Corporation
    Inventors: Yoshihisa Miura, Teruko Nagaoka
  • Publication number: 20140141914
    Abstract: A back face of each inner link plate of the chain is curved convexly. Heights from a pitch line connecting centers of pin holes of inner and guide link plates to the convex apex portion of the inner link plate and to an apex portion of the guide link plate are equalized. The convex apex portions are brought into contact with a guide face of the chain guide per every pitch and the ear apex portions are brought into contact with the chain guide per every pitch while being shifted by a half pitch from the convex apex portions.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: Daido Kogyo Co., Ltd.
    Inventors: Motoki TANAKA, Hiroaki OKU
  • Patent number: 8657711
    Abstract: In a silent chain, guide plates are U-shaped so that they can deform when tension is applied to the chain, thereby avoiding deformation of the connecting pins of the chain and warping of the guide plates. When the chain is unloaded, the frontmost edges of front pin holes of intermediate link plates of each link row are located forward of the frontmost edges of the front pin holes of the guide plates of the same link row, and the rearmost edges of the rear pin holes of the intermediate link plates of each link row are located rearward of the rearmost edges of the rear pin holes of the guide plates of the same link row.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: February 25, 2014
    Assignee: Tsubakimoto Chain Co.
    Inventor: Akira Hirai
  • Publication number: 20130059691
    Abstract: In a silent chain, frictional losses and noise are reduced, and power transmitting efficiency is improved, by making the inner profile of each guide plate sufficiently high in relation to a link plate tooth of a link plate overlapped by each said guide plate that engagement between a sprocket tooth and said link plate tooth takes place before engagement of the last mentioned sprocket tooth with said guide plate, even when the chain moves laterally. The tensile hardness of the guide plates is sufficiently low in relation to the bending rigidity of the connecting pins of the chain to prevent substantial warping of the guide plates as a result of tension acting on the chain. The back surfaces of the guide plates are configured to avoid contact with a sliding contact surface of a chain guide on which a back surfaces of the link plates of said chain can slide.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 7, 2013
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Syota Miyanaga
  • Patent number: 8182383
    Abstract: A plate-link chain composed of a large number of plates that form plate sets, where adjacent plate sets are hingedly connected to each other by pairs of rocker members. The rocker members of a rocker member pair have rolling surfaces that bear against each other. Some plate sets, preferably every second one, have a cover plate on their outwardly-facing sides, and the two rocker members associated with the plate set provided with the cover plates are received in receiving openings of the cover plates, and are pressed into them. At least one of the openings has relief cuts on both ends of a contact surface contacted by the rolling surface of the received rocker member, with the cover plate opening having a third relief cut.
    Type: Grant
    Filed: August 30, 2008
    Date of Patent: May 22, 2012
    Assignee: Schaeffer Technologies AG & Co. KG
    Inventors: Olga Ispolatova, Marcus Junig, Michael Pichura, Anton Simonov
  • Publication number: 20120071287
    Abstract: In a silent chain, guide plates are U-shaped so that they can deform when tension is applied to the chain, thereby avoiding deformation of the connecting pins of the chain and warping of the guide plates. When the chain is unloaded, the frontmost edges of front pin holes of intermediate link plates of each link row are located forward of the frontmost edges of the front pin holes of the guide plates of the same link row, and the rearmost edges of the rear pin holes of the intermediate link plates of each link row are located rearward of the rearmost edges of the rear pin holes of the guide plates of the same link row.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 22, 2012
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Akira Hirai
  • Publication number: 20110269590
    Abstract: A toothed chain, which has a multiplicity of toothed links and cover links articulatedly connected to one another by cradle pieces. The cradle pieces are arranged in cradle piece openings of the toothed links and cover links. The cover links form guide links situated at the outside at both sides of a longitudinal direction and hold the toothed links between them. The cover links are formed with link yokes, which have a respective opening for the cradle pieces, and with an upper and lower link web which connect the link yokes. An opening is formed in the region between the upper and lower link webs, which has, in plan view, a substantially trapezoidal shape with sides of substantially equal lengths and an upper side and lower side of different lengths. The upper side is assigned to the upper link web and the lower side to the lower link web.
    Type: Application
    Filed: April 11, 2011
    Publication date: November 3, 2011
    Inventors: Matthias NEUTZ, Olga ISPOLATOVA, Marcus JUNIG, Stephan PENNER, Anton SIMONOV
  • Publication number: 20110177899
    Abstract: A chain is disclosed having pins, each having a first end and a second end, and first and second outer plates press-fitted around the first and second ends of each of the pins, respectively. Each of the first and second outer plates has two pin holes through which the first and second ends of respective ones of the pins extend, respectively. First and second inner link assemblies, each consisting of at least one toothed inner plate, are disposed between the first and second outer plates. The at least one toothed inner plate has two openings each having a respective bushing press-fitted therein and arranged around respective ones of the pins with a slip-fit. Toothed middle plates, each having two pin holes press-fitted around respective ones of the pins, are disposed between the first and second inner link assemblies.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Lucian Botez, Christian Poiret
  • Patent number: 7892127
    Abstract: A chain (1) includes plural links (2) and plural pairs of first and second pins (3 and 4) to couple the links each other. The first pin (3) comes into rolling and sliding contact with the second pin (4) at the contact portion (D). The first pin (3) includes a pair of end faces (17) opposing each other in the chain width direction (W), and a contact region (24) that comes into contact with the corresponding sheave surfaces of the pulley is formed in each end face (17). The contact region (24) includes the center point of contact (M). The first pin (3) includes a first type pin (3a) and a second type pin (3b). When the linear region of the chain (1) is viewed in the chain width direction (W), the relative position of the contact portion (D) and the center point of contact (M) is different between the first type pin (3a) and the second type pin (3b).
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 22, 2011
    Assignee: JTEKT Corporation
    Inventors: Seiji Tada, Shigeo Kamamoto
  • Patent number: 7837029
    Abstract: A connector for connecting modular conveyor links to form a belt includes a rod-like core and a powder coating forming a protective shell. The core may be stainless steel and the powder coating may be nylon.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: November 23, 2010
    Assignee: Span Tech LLC
    Inventor: Mark D. Russell
  • Patent number: 7775030
    Abstract: Larger pre-tension is applied to each link such that residual compressive stress is larger at the portion of the link facing the inside of a chain than the outside. Assuming that for each of the links in a state that pre-tension is not applied, a predetermined pitch is P, a first inclination angle of a fixing portion of the front inserting portion with respect to a chain proceeding direction is ?, and a second inclination angle of a fixing portion of the rear inserting portion with respect to a chain proceeding direction is ?, when the pre-tension is applied to each of the links, the pitch changes into P+?P, the first inclination angle changes into ???? and the second inclination angle changes into ?+?? where ?P>0, ??>0, and ??>0.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 17, 2010
    Assignee: JTEKT Corporation
    Inventors: Shinji Yasuhara, Hiroshi Toyota
  • Patent number: 7695074
    Abstract: The present invention generally relates to braking systems for all-terrain vehicles. More particularly, the present invention relates to hand and foot actuated braking control systems for all-terrain vehicles.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: April 13, 2010
    Assignee: Polaris Industries, Inc.
    Inventor: Harry Pongo
  • Publication number: 20100084319
    Abstract: A support chain for a device for supporting a compression belt in a separation device for separating substances having different flowability. The support chain includes an articulated chain having individual chain links that form a flat surface. The links include chain pins with chain plates threaded thereon. A locking device is attached to opposite ends of the chain pins to hold the chain plates together on the chain pins. End pieces are adapted to receive the locking device so that the support chain is planar on both sides facing transversely to the direction of conveying of the support chain. Each end piece connects adjacent chain pins to each other and includes a sliding element and compensating elements. The sliding element has recesses which each include a through-bore and a non-through bore for receiving a respective compensating element. Each recess is constructed to receive the compensating element and locking device therein.
    Type: Application
    Filed: March 15, 2008
    Publication date: April 8, 2010
    Inventors: Oliver Hahn, Frank Gransee, Ron Avey
  • Patent number: 7658690
    Abstract: A plate link chain for a motor vehicle drive system. A number of link plates are hingedly connected by pairs of rocker members that extend transversely to the longitudinal direction of the chain. Curved contact surfaces are located on each of the rocker members and link plates, along which contact surfaces the rocker members and link plates contact each other to transmit power. The rocker members also include curved pitch surfaces along which rocker member pairs roll against each other to transmit power. The rocker members are shaped asymmetrically in the height direction and about a cross section plane extending in the longitudinal direction of the chain. Contact surfaces are provided on each of the upper and lower contact surface areas in the height direction of the rocker members.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: February 9, 2010
    Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Michael Pichura, Martin Vornehm, Anton Simonov
  • Publication number: 20080194367
    Abstract: The present invention relates to a tooth plate for an inverted tooth chain with two hinge openings spaced apart in the longitudinal direction and a tooth plate contour with two teeth arranged on one side in the longitudinal direction, the teeth each being limited by an outer flank and an inner flank. Here, at least one section of the tooth plate contour is shaved, where the ends of the shaved section comprise an overcut. This overcut is arranged in a low-stress area of the tooth plate contour. The invention further relates to a corresponding method for the manufacture of such a tooth plate with the pre-punching and shaving of a section of the tooth plate contour, wherein the overcut at least one end is arranged in a low-stress area of the tooth plate contour. In the subsequent normal punching of the non-shaved areas, the normally punched area of the tooth plate contour and the at least one shaved section meet in the area of the overcut at an angle to each other.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 14, 2008
    Applicant: iwis motorsysteme GmbH & Co., KG
    Inventors: Erwin Feld, Andreas Bongard
  • Publication number: 20080188337
    Abstract: A manufacture method of a power transmission chain pin includes a work step of working a bar-like member of a predetermined length into a pin having a final sectional shape and a final end portion shape with a guide portion to facilitate a press-fitting operation by a cold forging work. At this time, the manufacture method does not include a grinding step of grinding an end portion of the bar-like member of the predetermined length by a grinding stone.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 7, 2008
    Applicant: JTEKT Corporation
    Inventor: Yoshihisa Miura
  • Publication number: 20080176692
    Abstract: A belt-driven transmission having an endless torque-transmitting member that is operatively connected with two power transmitting elements. The transmission includes at least one guide rail assembly that engages the endless torque-transmitting member with free play and that has an outer guide rail and an inner guide rail so that the endless torque-transmitting member runs within a guide rail channel defined by the outer and inner guide rails of the guide rail assembly. The endless torque-transmitting member includes one surface that is at least partially provided with outwardly-extending tabs and another, tab-free surface. The guide rail assembly is pressed against the endless torque-transmitting member on the tab-free surface to limit vibratory amplitude of the endless torque-transmitting member during operation of the transmission.
    Type: Application
    Filed: December 15, 2007
    Publication date: July 24, 2008
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventor: Andre Teubert
  • Patent number: 7246699
    Abstract: A section of chain for conveying product along a material handling system includes a pin connecting a center link between two side links. The pin may be dialable or selectably positioned at the side links to control and adjust the wear surface of the pin relative to the chain links. The pin may have a rotationally non-symmetrical shaft portion to provide different wear surfaces that engage a center link of the section of chain. The different wear surfaces may be sized and shaped to accommodate wear at the wear surface of the center link. The shaft portion may include a rotationally non-symmetrical ball member or portion on the shaft portion to enhance flexibility of the section of chain. The pin may be dialed to the next position or wear surface in response to an output of a wear measurement device or system.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: July 24, 2007
    Assignee: Frost Links, Inc.
    Inventors: Charles C Frost, Jonathan M Rathbun, Ryan L Kastamo
  • Publication number: 20040248682
    Abstract: Rolling surfaces of rocker pressure members of plate-link chains for conical disk transmissions are constructed as freeform surfaces in such a way that their radius of curvature changes in a direction transverse to the longitudinal extent of the rocker pressure members and/or the thickness in the longitudinal direction of the rocker pressure members changes. In that way, the acoustic properties and the wear behavior of the plate-link chains can be improved.
    Type: Application
    Filed: March 20, 2004
    Publication date: December 9, 2004
    Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: Uwe Wagner, Andre Teubert, Andreas Triller
  • Publication number: 20040152549
    Abstract: In construction of a mechanical component such as a pin or a strip, at least one curved section extending in the moving direction is formed on the contact end of the component, or at least one inclined section converging in the chain entry side is formed on the contact end of the component; and/or a curved or inclined section is formed on the contact end of the component extending at least partially in the vertical direction; and/or at least one groove extending in one of the vertical and moving directions is formed in the contact end of the component.
    Type: Application
    Filed: November 24, 2003
    Publication date: August 5, 2004
    Inventors: Takashi Nishimoto, Jacobus Hubertus Maria van Rooij
  • Patent number: 6749059
    Abstract: A modular conveyor belt forming a hinge between consecutive belt rows hingedly connected by a two-part hinge pin. Hinge eyes along the forward and rearward ends of each row of belt modules include aligned openings for the hinge pins. The belt rows are arranged end-to-end with the hinge eyes of adjacent rows interleaved. The hinge pins are inserted in the passageway formed by the aligned openings of the interleaved hinge eyes. The hinge pins include first and second hinge pin members, such as flat strips. The openings in the hinge eyes are characterized by a narrow slotted portion for restraining the first hinge pin member against rotation within the slotted portion and a wider sector-shaped portion that allows the second hinge pin member to rotate relative to the first hinge pin member.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: June 15, 2004
    Assignee: Laitram, L.L.C.
    Inventors: James O. Gundlach, Christopher G. Greve, Robert S. Lapeyre
  • Patent number: 6695731
    Abstract: A link chain for use in the continuously variable transmission of the power train in a motor vehicle is assembled of pairs of composite identical or dissimilar links each having a stack of apertured plates, and of coupling units employing pairs of non-circular pins extending through registering portions of apertures in the respective stacks of plates. The pins are designed to cooperate with the plates to limit the extend of inward and outward pivotability of links of the respective pairs from positions of alignment, and the pins carry stops which act alone or cooperate with diaphragm springs or with other types of springs to prevent wobbling of the plates. The plates can be provided with projections which cooperate with the pins to limit the extent of pivotability of the pairs of links relative to each other and/or to prevent jamming of pairs of links in angular positions from which they cannot return to the positions of alignment. Each plate is traversed by two pairs of pins.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: February 24, 2004
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: André Linnenbrügger, André Teubert
  • Publication number: 20030236145
    Abstract: A chain having a plurality of inside links and guide links. The plurality of inside links each have a pair of apertures and are interleaved and connected to form rows. The plurality of guide links each have a pair of apertures and are placed outside of alternate rows of interleaved inside links to form guide rows. Connecting pins are received in the apertures and extend across the rows of the chain securing the links together. Spacing elements are found on opposite side of the chain, specifically between the guide links and the adjacent outermost inside links. The spacing elements act to maintain a spaced relationship between each of the guide link sand adjacent outermost inside links. At least one of the spacing elements on one side of the chain is a spring link holding the inside links in compressive frictional contact therebetween.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 25, 2003
    Applicant: BorgWarner Inc.
    Inventors: Tim J. Ledvina, Dennis J. Bubel, Mark E. Michaels, Mark A. Giovannini, Roger P. Butterfield
  • Publication number: 20030186767
    Abstract: A drive chain suitable for use in a continuously variable transmission of a motor vehicle, the transmission having two pairs of spaced drive members about which the chain passes to transfer torque from one drive member to the other. The chain includes a plurality of link elements that include spaced, side-by-side plate links. The plate links include openings in which pairs of parallel rocker members are disposed for relative rocking movement of at least one rocker member about its longitudinal axis. The rocker members extend outwardly beyond the plate links and are retained in position by retaining members that engage particular rocker members. A method for stretching the chain is also disclosed in which areas of some of the plate links are plastically deformed before the chain is put to use.
    Type: Application
    Filed: March 17, 2003
    Publication date: October 2, 2003
    Inventor: Ivo Greiter
  • Publication number: 20030181274
    Abstract: This invention relates to a guide bar for a drive chain, provided with two orifices for passage of a pintle pin, each orifice being substantially triangular in shape, with substantially identical edges, in the form of arc of circle and concave. The bar is provided with a recess which extends, from an outer edge of the bar, in the direction of an opposite edge, between the afore-mentioned orifices. The bar comprises, on either side of the recess, two series of two convex edges in the form of an arc of circle, each of these convex edges being centred on the geometrical centre of one of the concave edges of a triangular orifice.
    Type: Application
    Filed: April 1, 2002
    Publication date: September 25, 2003
    Inventors: Jean-Louis Albertin, Jean-Luc Teruel, Jean-Paul Lethy
  • Patent number: 6623392
    Abstract: A short pitch tooth chain that reduces the level of impact noise generated during operation is disclosed. A chain system includes a first sprocket having a plurality of sprocket teeth spaced apart by a first distance, a second sprocket also having a plurality of sprocket teeth spaced apart by the first distance, and a short pitch tooth chain wrapped around the first and second sprockets. The short pitch tooth chain includes a first link having a first aperture spaced from a second aperture by a second distance, a second link having a first toe spaced from a second toe by the first distance, the second link having a third aperture and being connected to the first link by a first pin extending through the first and third apertures, and a third link having a third toe spaced from a fourth toe by the first distance, the third link having a fourth aperture and being connected to the first link by a second pin extending through the second and fourth apertures.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: September 23, 2003
    Assignee: The Mesh Company, LLC
    Inventor: Reinhold Friedrich Reber
  • Patent number: 6589127
    Abstract: A silent chain includes guide link rows and joint link rows arranged alternately and articulately connected in an endless fashion by rocker joint pins each composed of a longer pin and a shorter pin. In each guide link row, the longer pin is fitted with two guide plates and also inserted through link plates disposed between the guide plates. In each joint link row, the shorter pin is inserted through link plates. The longer pin and the shorter pin are initially formed in a straight configuration and have the same cross-sectional shape. When the silent chain is stretched substantially straight after having been subjected to a proof load, the pitch of the guide plates is made slightly greater than the pitch of adjacent contact points between the longer pins and the shorter pins of the rocker joint pins in the guide link rows so that the longer pins are elastically deformed into a bow-like configuration bent toward the mating shorter pins.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: July 8, 2003
    Assignee: Tsubakimoto Chain Co.
    Inventors: Hiroshi Horie, Kazumasa Matsuno, Masao Maruyama, Shigekazu Fukuda, Yoshinori Iwasaki, Takayuki Funamoto, Hitoshi Ohara
  • Patent number: 6579200
    Abstract: A silent chain includes guide washers to prevent bending of the connecting pins during prestressing. The chain has multiple link plates, each with a pair of teeth and pin apertures. The links are interleaved in the transverse and longitudinal directions and are connected pivotally by connecting pins. The connecting pin is composed of a joint pin that is arcuate in cross-section and a rocker pin, which is shorter than the joint pin and arcuate in cross-section. A guide washer is provided for each connecting pin. The guide washer has guide parts that extend on both sides of the teeth of the link plate and includes a pin aperture for fixing the end of the joint pin.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: June 17, 2003
    Inventor: Shozo Wakabayashi
  • Patent number: 6572504
    Abstract: A silent chain is directed to prevent bending of the connection pin and reducing surface pressure acting on the connection pin while maintaining bendability of the entire chain. The chain includes multiple link plates, each having a pair of teeth and a pair of pinholes. The links are interleaved in the transverse and longitudinal directions and the link plates are connected by connection pins inserted in the pinholes. Connection pin is composed of center pin at the center of pinhole and of a pair of rocker pins on both sides of said center pin. Guide washer is provided to each connection pin. Guide washer has a guide part extending on both sides of the teeth of link plate and a central apertures for fixing of the end of center pin.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: June 3, 2003
    Assignee: Borg-Warner Automotive, K.K.
    Inventor: Shozo Wakabayashi
  • Patent number: 6533691
    Abstract: Each link plate of a low noise silent chain has an inside meshing surface formed on the inside flank of each link tooth. The inside meshing surface includes a convexly arcuate mesh start portion disposed on a tip side of each link tooth, and a convexly arcuate mesh guide portion disposed on a root side of each link tooth. The arcuate mesh guide portion has a radius of curvature and a circular arc length which are greater than a radius of curvature and a circular arc length, respectively, of the convexly arcuate mesh start portion. When the silent chain engages a sprocket, the engagement proceeds smoothly and continuously from the inside meshing surface to the outside meshing surface. This contributes to the reduction of the noise level of the silent chain as a whole through suppression of meshing sound of the outside meshing surface and vibratory chain noise.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Tsubakimoto Chain Co.
    Inventors: Hiroshi Horie, Kazumasa Matsuno, Shigekazu Fukuda, Takayuki Funamoto, Yoshinori Iwasaki, Nobuto Kozakura, Toyonaga Saito
  • Publication number: 20020173393
    Abstract: An inwardly cambered rocker joint for a power transmission chain is disclosed. The rocker joint includes a straight pin that defines a rocking surface and engages a first chain link. The rocker joint also includes an inwardly cambered rocker that engages a second chain link and that defines a rocking surface that contacts the pin rocking surface near the ends of the rocker. The inwardly cambered rocker joint provides a stiff joint that reduces tight strand resonance and chain wash.
    Type: Application
    Filed: April 3, 2001
    Publication date: November 21, 2002
    Inventors: John Charles Skurka, Steven Harold Manning
  • Publication number: 20020147065
    Abstract: A tooth chain includes a plurality of links, each link having at least two spaced-apart apertures, and a plurality of pins received in the apertures for joining together the links to thereby define inner links and outer links. Each pin has a length which is sized to terminate within the aperture of the outer link, wherein the aperture has a cross sectional profile which corresponds to a cross sectional profile of a pin end at a slight clearance fit to leave a space sufficient to allow the pin end to be joined with a wall of the aperture, without projecting beyond an outer surface of the outer link.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 10, 2002
    Applicant: REXROTH MECMAN GMBH
    Inventors: Klaus-Burkhard Winkelmann, Georg Twardzik
  • Patent number: 6440022
    Abstract: A double-meshing-type silent chain includes link plates having the identical side profile. Each link plate has two meshing teeth and a flat back face formed opposite to the meshing teeth. Two kinds of links are alternately arranged in the longitudinal direction of the chain, while the adjacent links are connected by pins. In one kind of link, an odd number of the link plates are disposed in the width direction of the chain. In the other kind of link, an even number of the link plates are disposed in the width direction of the chain. In each link, the link plates are oriented such that the meshing teeth of link plates located at widthwise opposite ends project outwardly with respect to the chain and the meshing teeth of the remaining link plates project inwardly with respect to the chain.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: August 27, 2002
    Assignee: Tsubakimoto Chain Co.
    Inventors: Kouichi Ichikawa, Nobuto Kozakura, Tsutomu Haginoya, Toyonaga Saitou
  • Publication number: 20020107100
    Abstract: A power transmission chain belt has a rocker joint to reduce power transmission loss and to reduce the surface pressure acting on the connecting pin while maintaining bendability of the entire chain. The chain is formed of multiple inner links, each having a pair of pin apertures. The links are interleaved in the transverse and longitudinal directions and are connected by connecting pin inserted in pin apertures. The connecting pin includes a center pin. Arranged at the center of pin aperture are curved faces of which at both of its ends contact pulley friction surface and of a pair of rocker pins, which are arranged on both sides of center pin in the pin aperture and which are shorter than the center pin. In addition, the outer link is arranged on the outside of outermost inner link and step part of center pin is press-fitted into a pair of pin apertures in outer link.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Inventors: Shozo Wakabayashi, Niroyuki Takeda
  • Publication number: 20020068654
    Abstract: The invention relates to a transmission component, such as a plate-link chain, thrust-link band or conical disks for a continuously variable, conical disk transmission.
    Type: Application
    Filed: September 2, 2001
    Publication date: June 6, 2002
    Inventors: Markus Baumann, Lothar Moser, Werner Kreiss
  • Publication number: 20020061800
    Abstract: A wear-elongation resistant silent chain includes guide link rows and articular link rows articulately connected together in an alternate fashion along the length of the chain by means of connecting pins inserted through respective pin holes of guide plates, guide link plates and articular link plates, with guide plate retainers secured to respective both ends of the connecting pins so as to keep the guide plates in position against removal from the connecting plates. The guide link plate and the articular link plates have different thicknesses so dimensioned as to balance the tensile strength of the guide link plate in one guide link row and the tensile strength of the articular link plates in the adjacent articular link row connected together by one of the connecting pins, thereby suppressing bending of the connecting pin. By thus suppressing the bending of connecting pin, wear elongation of the chain is prevented from occurring during power transmitting operation of the chain.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 23, 2002
    Inventor: Toyonaga Saito
  • Patent number: 6387003
    Abstract: A chain includes a pair of rocker joint pins inserted through laterally aligned pin holes of two adjacent link plates. The pin holes have a pair of upper and lower pin-position constraining surfaces arranged to face upper and lower flat surfaces, respectively, of each rocker joint pin with a very small clearance defined therebetween so that the rocker joint pin is always kept in position against displacement in a vertical direction relative to the link plates. When the chain is urged to warp or bend into a V shape, each of the rocker joint pins is gripped by the upper pin-position constraining surface of one of the two adjacent link plates and a warp blocking surface of the other of the two adjacent link plate. Thus, such warping of the chain does not take place.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: May 14, 2002
    Assignee: Tsubakimoto Chain Co.
    Inventors: Hiroshi Horie, Kazumasa Matsuno, Shigekazu Fukuda, Takayuki Funamoto, Yoshinori Iwasaki
  • Patent number: 6383105
    Abstract: A guide plate a for silent chain is substantially arch-shaped and has a pair of pin holes formed therein at a position adjacent to opposite free ends of the arch-shaped guide plate. The arch-shaped guide plate further has an arcuate inner peripheral surface and an arcuate outer peripheral surface both extending arcuately about a center located at the midpoint of a pitch line segment interconnecting the pair of pin holes. The arcuate inner peripheral surface has a radius of curvature which is in the range of 35 to 45% of the chain pitch, and the arcuate outer peripheral surface is blended with the opposite free ends of the arch-shaped guide plate.
    Type: Grant
    Filed: November 24, 2000
    Date of Patent: May 7, 2002
    Assignee: Tsubakimoto Chain Co.
    Inventors: Kazumasa Matsuno, Hitoshi Ohara, Shigekazu Fukuda, Masao Maruyama, Hiroshi Horie, Takayuki Funamoto, Yoshihiro Kusunoki
  • Publication number: 20020049107
    Abstract: A small pitch silent chain for automotive vehicle or industrial drive applications having freely rotating pins. The chain includes interleaved rows of links which are interconnected by cylindrical pins. The pins are allowed to rotate freely with respect to the links. Washers press-fit to the ends of the pins secure the pins in the chain. The pins are provided with a surface coating of vanadium carbide or chromium carbide.
    Type: Application
    Filed: June 25, 2001
    Publication date: April 25, 2002
    Inventor: Timothy J. Ledvina
  • Patent number: 6364800
    Abstract: Inverted tooth chains particularly those used in timing drive applications. Conventional guide links are replaced by conventional sprocket engaging links for the two outermost links in the outer link rows. A thick inner link of approximately twice normal thickness is placed in the inner link row and two normal thickness regular links are placed in the outer link row. Pins are fit securely in the holes of the links in the outer link rows.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: April 2, 2002
    Assignee: BorgWarner Inc.
    Inventors: Stellios A. Avramidis, H. John Fraboni
  • Publication number: 20020025870
    Abstract: In a double-sided meshing type silent chain, guide plates each having a flat back face formed on one side thereof and a pair of pin-accommodation holes formed therein are disposed at opposite widthwise ends of the chain with the pin-accommodation holes press-fit with connecting pins which are each adapted to articulately connect two adjacent rows of link plates with each other in an interleaved fashion. The guide plates do not take part in meshing engagement with a sprocket but operate to guide the travel of the chain stably without causing flattering or vibration. The guide plates further serves as a strengthening member of the chain.
    Type: Application
    Filed: August 28, 2001
    Publication date: February 28, 2002
    Inventors: Nobuto Kozakura, Toshifumi Sato
  • Patent number: 6346058
    Abstract: A flexible torque-transmitting device (1) such as a chain belt that runs in an endless loop around a first and second pair of conical disks in a continuously variable transmission of a motor vehicle includes means to keep the transverse force-transfer elements (2a, 2b) from becoming dislodged out of their seating positions in the lengthwise-running links (3a, 3b, 3c) of the chain belt.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: February 12, 2002
    Assignee: LuK Getriebe Systeme GmbH
    Inventors: André Linnenbrügger, Wolfgang Oberle
  • Patent number: 6287229
    Abstract: A short pitch tooth chain that reduces the level of impact noise generated during operation is disclosed. A chain system includes a first sprocket having a plurality of sprocket teeth spaced apart by a first distance, a second sprocket also having a plurality of sprocket teeth spaced apart by the first distance, and a short pitch tooth chain wrapped around the first and second sprockets. The short pitch tooth chain includes a first link having a first aperture spaced from a second aperture by a second distance, a second link having a first toe spaced from a second toe by the first distance, the second link having a third aperture and being connected to the first link by a first pin extending through the first and third apertures, and a third link having a third toe spaced from a fourth toe by the first distance, the third link having a fourth aperture and being connected to the first link by a second pin extending through the second and fourth apertures.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: September 11, 2001
    Assignee: The Mesh Company, LLC
    Inventor: Reinhold Friedrich Reber