Patents Assigned to Shimano Industrial Company, Limited
  • Patent number: 5127600
    Abstract: A double-bearing fishing reel, wherein a slider is rotatable with respect to a traverse shaft, a fishing line guide is formed of a pair of guide bodies so as to be movable with respect to the slider in the moving direction thereof, so that, when the guide bodies move close to each other, a fishing line to be wound onto a spool can be nipped by the guide bodies, a movement control mechanism for moving the guide bodies by rotation of the slider is provided, and a control member for rotatably operating the slider at an optional time is provided.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: July 7, 1992
    Assignee: Shimano Industrial Company, Limited
    Inventor: Takeshi Ikuta
  • Patent number: 5123878
    Abstract: A multistage sprocket assembly having at least two sprockets having different diameters and disposed adjacent to each other. The smaller sprocket has a tooth engageable with a portion of a drive chain to be displaced from the larger sprocket. The small sprocket tooth has a greater pressure angle at a position thereof rearwardly relative to a sprocket assembly drive rotation direction than that of the other teeth of the smaller sprocket.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: June 23, 1992
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 5078653
    Abstract: A multistep sprocket wheel device for a bicycle according to the present invention has at least one large sprocket wheel (1) and one small sprocket wheel (2) disposed adjacent each other. The two sprocket wheels (1, 2) are assembled such that a distance between a first pitch center (01) of one of the teeth on the large sprocket wheel (1) and a second pitch center (02) on the small sprocket wheel (2) adjacent a tangential line of the small sprocket wheel (2) extending rearwardly from the first pitch center (01) with respect to a direction of rotation of the sprocket wheels (1, 2) is substantially a product of a pitch of a chain (3) multiplied by an integer.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: January 7, 1992
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 5064138
    Abstract: A fishing reel supporting a spool rotatably to a reel body through a spool shaft, which is provided with a drive mechanism for driving the spool, a drag mechanism comprising a braking member and a drag disc and transmitting a driving force from the drive mechanism to the spool, a covering mechanism which has a cover provided with an inner space in which the drag mechanism is housed and has a seal for sealing the inner space at the cover, and a clutch interposed in a driving force transmitting route form the drive mechanism to the spool and allowing the spool to freely rotate, so that the drag mechanism is reliably protected from water and, when the drag mechanism is not operated, the spool is allowed to smoothly freely rotate.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: November 12, 1991
    Assignee: Shimano Industrial Company, Limited
    Inventor: Jun Sato
  • Patent number: 5064139
    Abstract: A fishing reel having a reel body, a spool rotatably supported to the reel body, a spool braking plate for braking the spool, a unidirectional rotation transmitting mechanism disposed between the spool and the spool braking plate, the mechanism having anti-reverse teeth and a stopper claw. The mechanism prevents reverse rotation of the spool through engagement between the anti-reverse teeth and the stopper claw. The fishing reel is characterized by a stopper-claw control member attached to a rotary member opposing to the spool braking plate to be rotatable within a predetermined angular range. The control member has a control portion engageable with the stopper claw for controlling engagement and disengagement of the stopper claw.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: November 12, 1991
    Assignee: Shimano Industrial Company Limited
    Inventor: Junichi Toda
  • Patent number: 5058447
    Abstract: A change-speed construction for a fishing reel. The construction has a cylindrical shaft for transmitting force from a handle arranged at an outer end position, a first gear rotatably fitted on the cylindrical shaft for high-speed winding, a second gear rotatably fitted on the cylindrical shaft for low-speed winding. The construction further has an engaging element for engaging either the first gear or the second gear for transmitting power from the cylindrical shaft, with the engaging element being slidable along an axis of the cylindrical shaft, an anti-slant portion having a slanting motion thereof restricted relative to the cylindrical shaft, and a posture maintaining mechanism including a portion attached to the anti-slant portion and a further portion attached to the engaging element. These portions come into sliding contact with either each other for preventing slant or `twist` of the engaging element.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: October 22, 1991
    Assignee: Shimano Industrial Company Limited
    Inventor: Takeshi Ikuta
  • Patent number: 5012692
    Abstract: A speed change lever apparatus for use in a bicycle. The apparatus has a winding member for winding up a speed change control cable and a cable-pulling lever operable to pull the cable by causing the winding member to pivot only in a cable winding direction. The cable-pulling lever returns to its home position after completion of speed change operation. The improved apparatus includes a position maintaining mechanism for stepwisely maintaining a position of the winding member and a release lever operable to release the position maintaining mechanism. The release lever also returns to its home position after completion of release operation. At the respective home positions, the cable-pulling lever and the release lever are operable in substantially same directions to enable a cyclist to disregard the direction of lever operations. Further, the home positions of the levers are disposed at different yet adjacent locations relative to a direction normal to the lever operating directions.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: May 7, 1991
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 5009119
    Abstract: A brake control apparatus includes a bracket, a brake lever pivoted to the bracket via a lever shaft and a lever spring for urging the brake lever to its home position relative to the bracket. The lever spring has first and second spring legs engageable respectively with the bracket and the brake lever and a coil portion disposed between the first and second spring legs. A return movement of the brake lever to its home position relative to the bracket is realized by flexion of a radial center line of the coil portion of the lever spring. With this control apparatus, the lever spring can provide substantially constant urging force regardless of the pivot amount of the brake lever and the lever spring does not produce unpleasant creaking noises in the course of a braking operation.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: April 23, 1991
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4998907
    Abstract: A connecting pin for use in a bicycle chain for example. The connecting pin has a pin body for connecting a plurality of connecting members at least one of which defines a through hole, an inserting portion attached to a longitudinal end the pin body, the inserting portion having a tapered portion insertible into and retainable at the through hole and a detachable connecting portion provided between the pin body and the inserting portion for detachably connecting the same. A connecting method using the connecting pin is also disclosed.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: March 12, 1991
    Assignee: Shimano Industrial Company Limited
    Inventors: Keiichi Sawada, Masashi Nagano
  • Patent number: 4988057
    Abstract: A drag device for a spinning reel, which is provided with first and second drag mechanisms for applying a rotational resistance to a spool shaft carrying a spool on which a fishing line is wound and with adjusting members of the drag mechanisms which are independently operable. A support cylinder is provided at a the reel body of the spinning reel and rotatably supports the adjusting member of the second drag mechanism. The support cylinder is provided with a regulation mechanism for regulating an adjusting operation range of the adjusting member of the second drag mechanism and an engaging recess for indicating substantially the center of the adjusting operation range. The adjusting member at the second drag mechanism is provided with an engaging member slidable radially of the support cylinder and engageable with the engaging recess and a spring member for biasing the engaging member in the direction of engaging with the engaging recess.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: January 29, 1991
    Assignee: Shimano Industrial Company Limited
    Inventor: Yasuhiro Hitomi
  • Patent number: 4964590
    Abstract: A fishing reel provided with a spool, a drive mechanism for driving the spool, a clutch mechanism for allowing the spool to freely rotate with respect to the drive mechanism, and a clutch operating mechanism, is constructed so that an angler, when pushing an operating portion of a clutch lever provided at the clutch operating mechanism to disconnect the clutch mechanism, may put the tip of his finger operating the operating portion in close proximity to the outermost layer of a fishing line wound onto the spool, thereby making it possible to stop free rotation of the spool, by use of his finger, in continuation of its pushing the operating portion.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: October 23, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Jun Sato
  • Patent number: 4951898
    Abstract: A double bearing reel is provided which includes first and second main gears which have different diameters and are rotatably supported around a handle shaft. A sleeve is rotatably supported on the handle shaft. The sleeve includes a shifter for selectively transmitting rotation of the handle shaft to one of the first and second main gears, so that the shifter is operated to transmit rotation of the handle shaft to a spool to enable changing the rotation speed of the spool.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: August 28, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Noboru Sakaguchi
  • Patent number: 4938433
    Abstract: A spinning reel is provided with a drag mechanism which includes an adjuster and a braking force measuring mechanism for measuring the braking force set by the drag mechanism. The reel also includes a reference position setting mechanism which specifies the position of the adjuster corresponding to the reference position at which an optimum force set by the drag mechanism is obtained.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: July 3, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Junichi Toda
  • Patent number: 4930723
    Abstract: A braking force measuring mechanism is provided which includes a blocking member provided within a skirt of a spool for blocking rotation of the spool relative to a braking side member and an operating member provided at the outer periphery of the skirt for engaging or disengaging the blocking member with or from a retaining portion provided at the braking side member.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: June 5, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Junichi Toda
  • Patent number: 4930368
    Abstract: A speed-change operating device for a bicycle includes an operating lever for actuating a derailleur, the operating lever being supported rotatably through a lever shaft to a base member adapted to be supported on the bicycle. A friction mechanism applies to the lever an adjustable rotational resistance against a bias force of a return spring associated with the derailleur. A positioning mechanism includes a positioning member having a plurality of engaging portions for precisely setting the respective speed change stages of the derailleur and an engaging member engageable with at least one of the engaging portions. An operating mechanism selects between an operating mode and a non-operating mode of the positioning mechanism so that the positioning mechanism can be placed in a non-operating mode, when desired, with the speed-change operation being performed in such non-operating mode only with the friction mechanism resisting the return spring.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: June 5, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4930722
    Abstract: A drag mechanism for a spinning reel which is provided at one of a stationary said member stationary with respect to a spool with a reference portion for the optimum braking force and at the other with a position setting portion corresponding to said reference portion, thereby indicating the position of an adjuster corresponding to the optimum braking force.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: June 5, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Junichi Toda
  • Patent number: 4928549
    Abstract: A bicycle pedal includes a swinging member pivoted to the pedal body such that it is swingable at its upper portion in a direction of moving toward or away from the pedal body. A movable pawl is pivoted to the upper portion of the swinging member, and both the swinging member and movable pawl are biased by a spring in the direction of moving toward the pedal body. The movable pawl and swinging member swing relative to the pedal body to enable a shoe plate attached to a shoe of a cyclist to be mounted onto or dismounted from the pedal body.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: May 29, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4920818
    Abstract: A speed control device for a bicycle is provided, which includes a positioning mechanism comprising a positioning member having a plurality of engaging portions, an engaging member selectively engageable one at a time with the engaging portions and an elastic member for biasing the engaging member toward the engaging portions. A reaction force of the elastic member affects the torque of the operating lever to generate a clicking vibration felt by the cyclist. The speed control device includes a thrust bearing which, when the operating lever is operated and the engaging member disengages from one of the engaging portions and transfers to the adjacent engaging portion, bears the reaction force of the elastic member, thereby reducing the torque of the operating lever and amplifying the clicking vibration thereof.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 1, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano
  • Patent number: 4918852
    Abstract: A fixture for a fishing reel is provided which includes a tubular fixture body having a screw thread, a fixing holder, a movable pusher movable toward or away from the fixing holder, and a threaded ring for operating the movable pusher. A plurality of locking grooves extending lengthwise of the fixture body are provided at the screw thread of the fixture body. These locking grooves are spaced at predetermined intervals circumferentially of the fixture body. An engaging projection engageable with one of the locking grooves to restrain the threaded ring from loosening is provided at the threaded ring such that it can be changed in position between engaged and disengaged positions with one of the locking grooves.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: April 24, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Yoshiro Yamato
  • Patent number: 4919004
    Abstract: A speed-change operating device for a bicycle includes an operating lever for actuating a derailleur, the operating lever being supported rotatably through a lever shaft to a base member adapted to be supported on the bicycle. A friction mechanism applies to the lever an adjustable rotational resistance against a bias force of a return spring associated with the derailleur. A positioning mechanism includes a positioning member having a plurality of engaging portions for precisely setting the respective speed change stages of the derailleur and an engaging member engageable with at least one of the engaging portions. An operating mechanism selects between an operating mode and a non-operating mode of the positioning mechanism so that the positioning mechanism can be placed in a non-operating mode, when desired, with the speed-change operation being performed in such non-operating mode only with the friction mechanism resisting the return spring.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: April 24, 1990
    Assignee: Shimano Industrial Company Limited
    Inventor: Masashi Nagano