Patents Represented by Attorney James A. Deland
  • Patent number: 8012052
    Abstract: A bicycle rear derailleur comprises a base member; a movable member that supports a chain guide including a first pulley that rotates around a first pulley axis, wherein the pulley has a pulley plane; a first linking member coupled between the base member and the movable member so that the chain guide moves laterally relative to the base member between a first lateral position and a second lateral position, and a cable guide supported to the base member to guide a shift control cable. The pulley plane intersects the first linking member when the chain guide is located at a first position between the first lateral position and the second lateral position.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: September 6, 2011
    Assignee: Shimano, Inc.
    Inventor: Satoshi Shahana
  • Patent number: 8007383
    Abstract: A bicycle rear derailleur comprises a base member, a movable member that supports a chain guide including a pulley that rotates around a pulley axis, and a linking member coupled between the base member and the movable member so that the chain guide moves laterally relative to the base member between a first lateral position and a second lateral position. Examples of features include the linking member being coupled to the base member through separate pivot pins, the linking member straddling the base member, and the base member having link coupling projections with different thicknesses.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 30, 2011
    Assignee: Shimano, Inc.
    Inventors: Etsuyoshi Watarai, Shinya Oseto, Souta Yamaguchi
  • Patent number: 7980974
    Abstract: An apparatus for mounting a bicycle electrical component comprises a housing member structured to be mounted to a bicycle and an electronic circuit element mounted to a circuit mounting member, wherein the circuit mounting member is disposed in the housing. The circuit mounting member has a shape that varies away from a plane containing the electronic circuit element to conform to a shape of the housing member.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: July 19, 2011
    Assignee: Shimano, Inc.
    Inventor: Masahiko Fukuda
  • Patent number: 7942768
    Abstract: A derailleur includes a motor that drives a drive member, a driven member driven by the drive member, and a clutch having a first element that disengages from a second element when substantial resistance exists in a power transmission path between the drive member and the driven member. An apparatus for controlling the derailleur comprises a re-engage command receiving circuit and a re-engagement circuit, wherein the re-engage command receiving circuit receives a re-engage command signal to re-engage the first element with the second element when the first element is disengaged from the second element, and the re-engagement circuit re-engages the first element with the second element in response to the re-engage command signal.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: May 17, 2011
    Assignee: Shimano, Inc.
    Inventors: Ryuichirou Takamoto, Kazuhiro Fujii, Masahiko Fukuda
  • Patent number: 7942771
    Abstract: A bicycle sprocket apparatus comprises a larger diameter sprocket and a smaller diameter sprocket, wherein the larger diameter sprocket has on its outer periphery a plurality of sprocket teeth, the smaller diameter sprocket has on its outer periphery a plurality of sprocket teeth, and a number of sprocket teeth on the smaller diameter sprocket is less than a number of sprocket teeth on the larger diameter sprocket. The larger diameter sprocket includes a tooth and a first chain receiving tooth disposed immediately behind the tooth in the driving rotation direction, wherein the tooth includes a control side surface and an inclined side surface.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: May 17, 2011
    Assignee: Shimano, Inc.
    Inventor: Kenji Kamada
  • Patent number: 7942767
    Abstract: A bicycle derailleur comprises a base member; a movable member that supports a chain guide, wherein the movable member is coupled to the base member so that the movable member moves relative to the base member for moving a chain among a plurality of sprockets; an intermediate member that mounts the base member to a bicycle frame; a first adjusting mechanism that adjustably sets a position of the intermediate member relative to the bicycle frame; and a second adjusting mechanism that adjustably sets a position of the base member relative to the intermediate member.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 17, 2011
    Assignee: Shimano, Inc.
    Inventors: Souta Yamaguchi, Hideki Ikemoto
  • Patent number: 7931553
    Abstract: A bicycle sprocket apparatus comprises a sprocket mounting member, a first sprocket, and a second sprocket. The sprocket mounting member includes a hub mounting portion and a sprocket mounting portion, wherein the hub mounting portion is structured to be mounted to a rotating hub that rotates around a rotational axis. The sprocket mounting portion includes a first sprocket mounting surface that faces in a first direction and a second sprocket mounting surface that faces in an opposite second direction. The first sprocket is disposed at the first sprocket mounting surface, and the second sprocket is disposed at the second sprocket mounting surface. A fastener fastens the first sprocket to the first sprocket mounting surface, and a chain supporting structure extends from the fastener in the first direction and projects in the first direction away from a side surface of the first sprocket that faces in the first direction.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: April 26, 2011
    Assignee: Shimano, Inc.
    Inventor: Koji Tokuyama
  • Patent number: 7892122
    Abstract: A derailleur for a bicycle comprises a base member, a movable member for supporting a chain guide, a linkage mechanism coupling the base member to the movable member, an electrically operated actuating element, and a power storing mechanism. Moving the actuating element causes the movable member to move laterally. A first portion of the power storing mechanism is disposed in a first power transmission path between the actuating element and the movable member, and a second portion of the power storing mechanism is disposed in a different second power transmission path between the actuating element and the movable member. The actuating element comprises a first actuating member and a second actuating member. The first actuating member communicates force in the first power transmission path, the second actuating member communicates force in the second power transmission path, and the first actuating member moves relative to the second actuating member.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: February 22, 2011
    Assignee: Shimano, Inc.
    Inventor: Masahiko Fukuda
  • Patent number: 7882763
    Abstract: A shift control device for a bicycle transmission comprises a mounting member adapted to mount the shift control device to a bicycle; a first lever operatively coupled to the mounting member such that the first lever stops at a plurality of positions corresponding to gear positions of the bicycle transmission, wherein the first lever moves in a first plane; and a second lever operatively coupled to the mounting member for movement in a second plane between a rest position and an operating position such that the second lever returns to the rest position after moving to the operating position. In this embodiment, the first plane is substantially parallel to the second plane.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: February 8, 2011
    Assignee: Shimano, Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: 7856903
    Abstract: A bicycle crank axle comprises an axle body having first and second end portions, a plurality of first splines disposed at the first end portion of the axle body, a plurality of second splines disposed at the second end portion of the axle body, and a projection extending radially outwardly from the first end portion of the axle body, wherein the projection is structured to abut against a lateral outer surface of a bicycle crank arm to prevent the bicycle crank arm from moving axially outward. A separate projecting member is mounted to the first end of the axle body to form the projection. The plurality of first splines extend radially outwardly from an outer peripheral surface of the axle body for engaging a splined surface of the bicycle crank arm, but the plurality of second splines do not extend radially outwardly relative to the outer peripheral surface of the axle body.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 28, 2010
    Assignee: Shimano, Inc.
    Inventors: Masahiro Yamanaka, Etsuyoshi Watarai
  • Patent number: 7854302
    Abstract: A bicycle brake apparatus comprises a securing bracket with an axle opening dimensioned to receive a bicycle wheel hub axle therethrough, a braked member that has a braking surface and is adapted to rotate with a bicycle wheel hub rotatably supported by the hub axle, a braking member adapted to contact the braking surface, and an operating unit that selectively causes the braking member to contact the braking surface. A locking unit is structured for attachment to the securing bracket, wherein the locking unit extends in an axial direction of the hub axle and is dimensioned to nonrotatably engage the bicycle frame radially inwardly of a rotating portion of the brake apparatus.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: December 21, 2010
    Assignee: Shimano, Inc.
    Inventors: Seiji Fukui, Keiji Matsueda, Keita Tanaka
  • Patent number: 7846047
    Abstract: A sprocket comprises a sprocket body; a plurality of teeth extending radially outwardly from the sprocket body and dimensioned to engage a bicycle chain; and a spline extending radially inwardly from the sprocket body, wherein the spline includes a radially outer surface facing radially outwardly.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: December 7, 2010
    Assignee: Shimano, Inc.
    Inventors: Takahiro Nakano, Kenji Kamada
  • Patent number: 7798929
    Abstract: An apparatus for controlling a movable bicycle device comprises a power supply sensor that detects an abnormal power supply characteristic, and a control unit operatively coupled to the power supply sensor. The control unit provides a first signal to command the bicycle device to move in a first manner when the power supply has a first characteristic, and the control unit provides a second signal to command the bicycle device to move in a different second manner when the power supply has a second characteristic.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: September 21, 2010
    Assignee: Shimano, Inc.
    Inventors: Ryuichiro Takamoto, Masahiko Fukuda
  • Patent number: 7784593
    Abstract: A brake pad for a bicycle comprises a backing plate formed from titanium, and a friction member bonded to the backing plate through a diffusion layer. The diffusion layer is formed at least in part by thermal spraying copper onto the backing plate. A method of constructing the brake pad comprises the steps of thermal spraying copper on a backing plate formed from titanium to form a copper layer on the backing plate, and bonding a friction member to the copper layer by forming a diffusion layer with the copper layer.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: August 31, 2010
    Assignee: Shimano, Inc.
    Inventors: Masaaki Hara, Toru Iwai, Takashi Fujitani, Tsukasa Fukuta
  • Patent number: 7762157
    Abstract: A shift operating device for a bicycle comprises a mounting member structured to be mounted to the bicycle, a cable coupling member coupled to the mounting member for moving a cable in a cable pulling direction and a cable releasing direction, a positioning unit that selectively maintains the cable coupling member in a plurality of operating positions, and an input member that moves in a first direction and in a second direction different from the first direction, and an action member rotatably coupled to the mounting member and separate from the input member. The action member rotates to transmit movement of the first operating member to the positioning unit such that the cable coupling member moves from an origin operating position toward a destination operating position when the first operating member moves in either of both the first direction and the second direction.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: July 27, 2010
    Assignee: Shimano, Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: 7730803
    Abstract: A switch designation apparatus for a bicycle control unit comprises a first switch structured to be mounted to a bicycle for providing signals to move a moving bicycle control device, a second switch structured to be mounted to the bicycle for providing signals to move the moving bicycle control device, and a switch designation unit that allows a user to selectively designate movements of the bicycle control device signaled by at least one of the first switch and the second switch.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: June 8, 2010
    Assignee: Shimano, Inc.
    Inventor: Ryuichiro Takamoto
  • Patent number: 7682283
    Abstract: A hub transmission for a bicycle comprises a hub axle; a driver rotatably supported to the hub axle; a hub shell rotatably supported to the hub axle; a power transmitting mechanism disposed between the driver and the hub shell for communicating rotational power from the driver to the hub shell through a plurality of power transmission paths; a shift mechanism for selecting the plurality of power transmission paths; a shift assist mechanism for communicating rotational power from the driver to the shift mechanism; and a power control mechanism disposed between the driver and the shift assist mechanism and coupling rotational power from the driver to the shift assist mechanism for communicating non-constant rotational power from the driver to the shift assist mechanism.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 23, 2010
    Assignee: Shimano, Inc.
    Inventors: Hiroyuki Okoochi, Tetsuya Hino
  • Patent number: 7669502
    Abstract: A shift control device for a bicycle transmission comprises a mounting member adapted to mount the shift control device to a bicycle; a first lever operatively coupled to the mounting member such that the first lever stops at a plurality of positions corresponding to gear positions of the bicycle transmission, wherein the first lever moves in a first plane; and a second lever operatively coupled to the mounting member for movement in a second plane between a rest position and an operating position such that the second lever returns to the rest position after moving to the operating position. In this embodiment, the first plane is substantially parallel to the second plane.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 2, 2010
    Assignee: Shimano, Inc.
    Inventor: Tatsuya Kawakami
  • Patent number: RE41782
    Abstract: A rear derailleur for a bicycle includes a base member for attaching the rear derailleur to the bicycle, a movable member for supporting a chain guide, and a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member. An electrically operated actuating member is operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward a rear wheel of the bicycle, and moving the actuating member in a second direction causes the movable member to move laterally away from the rear wheel of the bicycle. A power storing mechanism is disposed in a power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: September 28, 2010
    Assignee: Shimano, Inc.
    Inventor: Masahiko Fukuda
  • Patent number: RE42635
    Abstract: A bicycle cable disc brake is provided with a cam assembly that has improved efficiency during movement under high pressure. Basically, the cable disc brake has a cable housing, a pair of friction members and an actuated mechanism. The first friction member is movably coupled to the caliper housing between a release position and a braking position. The second caliper is also coupled to the caliper housing and arranged substantially parallel to the first friction member to form a rotor receiving slot therebetween. The actuated mechanism is movably coupled to the caliper housing to move the first friction member from the release position towards the second friction member to the braking position. The actuated mechanism has a pair of cam members movably arranged between an axially retracted position and an axially extended position with a guide member interconnecting the cam members during movement between the axial retracted position and the axially extended position.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 23, 2011
    Assignee: Shimano, Inc.
    Inventors: Kanji Kirimoto, Tsuyoshi Sakashita, Kazuhisa Yamashita