Patents Assigned to Shimano Industrial Company, Limited
  • Patent number: 4561605
    Abstract: A fishing reel is provided with a spool and a magnetic brake for reducing overrun of the spool. The spool has a frame member which rotatably supports the spool, a cylindrical electric conductor rotatable together with the spool, and a magnet holder having at least one magnet positioned at one side of the holder radially of the conductor and opposite thereto. The holder has a support unit which supports the holder to the frame member so that the magnet can be adjusted radially toward or away from the conductor to thereby adjust the braking of the conductor. The support means includes a control member which controls the holder to move toward the position where the magnet is adjusted.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: December 31, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Hideki Nakajima
  • Patent number: 4558828
    Abstract: A fishing reel is provided which includes a reel body, a spool having a spool shaft rotatably supported to the reel body, a handle shaft rotatably supported to the reel body, a handle supported to the handle shaft for applying to the spool a driving force, a transmission mechanism for transmitting the driving force from the handle to the spool and a drag mechanism for applying a resistance to reverse rotation of the handle relative to the handle shaft. The handle shaft projects outwardly relative to the reel body, and the handle is supported on the handle shaft at an intermediate portion thereof, with the handle shaft also projecting outwardly relative to the handle. The handle is interposed between the reel body and the drag mechanism.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: December 17, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Shinichi Morimoto
  • Patent number: 4555072
    Abstract: A drag mechanism for a spinning reel includes a first friction plate supported non-rotatably to the spool shaft and a second friction plate disposed adjacent to the first friction plate and supported non-rotatably to the reel body. An adjusting knob is screwed with the reel body, such that the adjusting knob is rotatable relative to the reel body. The range of rotation of the adjusting knob relative to the reel body is restricted. The adjusting knob includes a spring holder for holding a drag spring which is interposed between the first and second friction plates and an initial load adjuster. The initial load adjuster is movable toward or away from the friction plates to adjust an initial rotational resistance load applied against rotation of the spool shaft by the adjusting knob. The initial load adjuster also includes a display means for displaying an indication of the initial load set by the initial load adjuster.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: November 26, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Yasuhiro Hitomi
  • Patent number: 4551121
    Abstract: A front derailleur for a bicycle having a chain guide with inner and outer plates for shifting a driving chain from one to another of at least two front chain gears. The inner plate has a swollen portion extending toward the outer plate, which urges the chain toward a larger diameter front chain gear and which is disposed between a first chain traversing position where the chain, when in the process of being shifted from a smaller diameter front chain gear to the larger diameter one, traverses the chain guide at an initial stage wherein the chain is raised by contact with the larger diameter chain gear and a second chain traversing position where the chain traverses the chain guide at the final stage wherein the chain is raised by contact with the larger diameter gear before completion of the chain shift operation.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: November 5, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4548370
    Abstract: A fishing reel is provided with a spool, a drive mechanism for driving the spool, a clutch mechanism for freely rotating the spool with respect to the drive mechanism, and a clutch operating mechanism for operating the clutch mechanism. A clutch lever at the clutch operating mechanism is supported to a second side frame opposite to a first side frame carrying a handle at the drive mechanism. When the operating member is pushed to move the clutch lever to the termination position of the forward movement for disconnecting the clutch mechanism, the finger tip of an angler's hand for operating the operating member is adapted to be positioned in the vicinity of the outer surface of the spool, thereby enabling the angler's finger to stop the rotation of the spool in continuation of the push operation of the operating member.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: October 22, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Hideo Noda
  • Patent number: 4546858
    Abstract: An improvement in a bicycle brake in which arms are swingably supported to lever shafts at bases fixed to the bicycle frame and in which brake shoes having mounting pins are fixed to the arms through fixing bolts and nuts respectively. Each adjusting member has a pair of inner surfaces parallel to the outside surface of the shoe mounting portion of the associated arm and a pair of outer surfaces inclined with respect to the outside surface of the shoe mounting portion of the associated arm and parallel to each other. A separate adjusting member is supported rotatably with respect to each of the arms so that the vertical and rotational positions of the brake shoes are adjustable by rotations of the adjusting members respectively.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: October 15, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4546937
    Abstract: A fishing reel provided with a drag mechanism and a drag lever for operating it, in which a mechanism for operating the drag lever in fine adjustment is incorporated, the fine adjustment operating mechanism comprising a rotary member and a contact member having the contact surface in contact with the rotary member, so that the rotary member rotates to enable a fine adjustment in the operation of the drag lever.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: October 15, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Noda Hideo
  • Patent number: 4544111
    Abstract: A magnetic brake fishing reel is provided which includes a reel body rotatably supporting a spool and a drive mechanism supported to the reel body and having a clutch for releasably driving the spool. The magnetic brake has an electric conductor which is rotatable together with the spool. A magnet holder having at least one magnet is disposed opposite to the conductor. An adjustor which moves the magnet has an operating member positioned such that it is hand-operable by an angler gripping a fishing reel rod on which the reel is mounted.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: October 1, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Hideki Nakajima
  • Patent number: 4543847
    Abstract: A brake operating device for a bicycle is provided with a main lever, a lever shaft to support the main lever, a pivot shaft screwing with an axial end of the lever shaft, and an auxiliary lever supported to the pivot shaft. A locking unit is provided for preventing looseness of the pivot shaft with respect to the lever shaft. The locking means is provided with a coiled spring having a coil portion wound onto the outer periphery of a stem of the pivot shaft and a retaining end in continuation of the coil portion, and a retaining portion receiving therein the retaining end of coiled spring. When the pivot shaft is intended to unscrew, the coil portion of the coiled spring contracts in diameter to impede the rotation of the pivot shaft.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: October 1, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4532825
    Abstract: A control device for a two stage derailleur comprising a control lever supported swingably around a first lever shaft between first and second speed change positions and which is biased always toward the first speed change position, and a release lever which holds the control lever in the second speed change position and which is operable to release the control lever. The release lever is supported to a second lever shaft perpendicular to the first lever shaft to thereby allow the control lever and release lever to operate perpendicularly to each other.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: August 6, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4530677
    Abstract: A derailleur for a bicycle has a base member, a movable member movable axially of a multi-stage sprocket assembly, a first feeding mechanism for moving the movable member, and a guide mechanism supported to the movable member and including a guide pulley and tension pulley for guiding the driving chain to one sprocket of the multi-stage sprocket assembly. The guide mechanism has a second feeding means including a controller actuated by operation of the first feeding mechanism to move the driving chain carried by the guide pulley axially of the multi-stage sprocket assembly by use of the movement of the chain. During changing, the chain is forcibly moved by the second feeding means to switch the chain to a desired sprocket.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: July 23, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4528865
    Abstract: A handle for a bicycle comprising a handle stem and a pair of left-hand and right-hand handle bars, the handle stem being provided at the upper portion with a bar holding member which is directed lengthwise of the handle stem and has bar fitting portions into which the left-hand and right-hand handle bars are fitted in relation of being rotationally adjustable, the bar fitting portions being slanted at the upper portions thereof away from the center line lengthwise of the handle stem, the left-hand and right-hand handle bars being fixed to the handle stem in a relation permitting a distance between grips at the handle bars, a height of each grip, and a position thereof longitudinal of the bicycle, to be adjustable.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: July 16, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4529142
    Abstract: A fishing reel comprising a rotary frame supported rotatably to a reel body so that the rotary frame is driven to rotate to thereby wind a fishing line onto a spool, wherein a braking member is supported freely rotatably for providing a resistance against reverse rotation of the rotary frame and is adapted to rotate together with the rotary frame through a unidirectional rotation transmitting mechanism when the rotary frame is driven to rotate.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: July 16, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Osamu Yoshikawa
  • Patent number: 4526059
    Abstract: A pedal for a bicycle, which has a pedal body provided with a pair of first and second foot bearing surfaces and displaced at the center of vertical length of the body lower than the axis of a pedal shaft so that the foot bearing surfaces at the pedal body may face always upward, the pedal body also being forwardly extended at the front side thereof to form an extension having a third foot bearing surface.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: July 2, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Nobumi Takeda
  • Patent number: 4523492
    Abstract: A pedal for a bicycle, which is provided at the upper surface of a pedal body having a pedal shaft and in the vicinity of the pedal shaft with a main foot bearing surface with which the metatarsi of a cyclist's foot at the phalange side are brought into contact, and at the rear side of the main foot bearing surface with an auxiliary foot bearing surface with which the metatarsi at the tarsus side are brought into contact.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: June 18, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Keizo Shimano
  • Patent number: 4522610
    Abstract: A gear crank apparatus for a bicycle, comprising a crank shaft, a pair of crank arms, and at least one chain gear. The chain gear has an ellipse-like shape and peripheral teeth located on different pitch diameters, the chain gear being arranged with respect to the crank arms and being coupled therewith, so that when torque produced by a cyclist's leg during pedalling is maximum, the gear diameter for transmitting the torque from the chain gear to a driving chain becomes substantially minimum and when the torque is a minimum, the gear diameter becomes substantially a maximum.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: June 11, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4522354
    Abstract: A fishing reel comprises a spool shaft having a spool and which is supported rotatably between a pair of frames so that the spool shaft is driven through a clutch by a drive mechanism having a drag mechanism and which is provided with a clutch operating mechanism which is operated to disengage the clutch to allow the spool to freely rotate. The drive mechanism is provided at a main gear thereof with a stopper gear rotatable together therewith, one of the frames is provided with a stopper engageable with the stopper gear to impede the reverse rotation of spool, and the frame is provided with an operating segment for the stopper, thereby enabling engagement and disengagement of stopper with or from the stopper gear.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: June 11, 1985
    Assignee: Shimano Industrial Company Limited
    Inventors: Jun Sato, Hideki Nakajima
  • Patent number: 4519791
    Abstract: A sprocket for a bicycle comprising a sprocket body and a number of teeth provided circumferentially at the outer periphery of the sprocket body, teeth being shaped so that a length between the tooth crest of each tooth and the axis of rotation of the sprocket body, is made smaller than that between a phantom plane connecting both circumferential edges at the tooth crest and the axis of rotation, both the edges being acute-angled.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: May 28, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: RE31920
    Abstract: A fishing reel has a spool arranged between first and second opposing side plates, a handle shaft carrying a master gear supported between the first side plate and a gear cover provided outwardly thereof, and a spool shaft carrying a pinion in mesh with the master gear supported between the second side plate and the gear cover through bearings, the first side plate being provided with support means having a support for supporting the spool shaft at an intermediate portion thereof, so that the spool shaft is normally free from the support but is supported in contact therewith when deflection occurs in the spool shaft.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: June 25, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Hideo Noda
  • Patent number: D280192
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: August 20, 1985
    Assignee: Shimano Industrial Company Limited
    Inventor: Satoshi Watanabe