Patents by Inventor Nobuyuki Yamaguchi
Nobuyuki Yamaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5875986Abstract: A fishing reel of the double bearing type is provided which enhances the ability of releasing a fishline. The fishing reel of the double bearing type includes a spool (5) rotatably supported on a reel body, and this spool includes a fishline-winding barrel portion (50), and a pair of flanges (51). D is not more than 50 mm, and (d/D) is 50.about.80% where D represents an outer diameter of the spool, and d represents a diameter of a bottom of the fishline-winding barrel portion of the spool.Type: GrantFiled: September 8, 1995Date of Patent: March 2, 1999Assignee: Daiwa Seiko, Inc.Inventors: Takeo Miyazaki, Nobuyuki Yamaguchi
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Patent number: 5850979Abstract: A fishing reel of a double bearing type is provided in which the center of gravity of the reel and handle position are situated nearer to the position of the hand holding the reel to thereby be able to perform the fishline take-up operation of the handle stably. A fishing reel of an embodiment includes a reel main body (A) which includes two left and right side frames (1, 1'). A support plate (1") and a reel side plate (2) are mounted on the outside of the left side frame (1), while a reel side plate (3) is mounted on the outside of the right side frame (1'). A spool (11) is interposed between the left and right side frames (1, 1') and is fixed to a spool shaft (4). The spool (11) is structured such that it can be rotated by a handle (17). A handle shaft (6) is disposed in the rear of the spool shaft (4) on the opposite side to a fishline play-out direction. Between the left and right side frames (1, 1'), a level wind device (B) is disposed in front of the spool (11) on the fishline play-out direction side.Type: GrantFiled: August 23, 1995Date of Patent: December 22, 1998Assignee: Daiwa Seiko, Inc.Inventors: Tomohiro Murayama, Nobuyuki Yamaguchi, Toshiro Ono, Shinichi Asano
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Patent number: 5775614Abstract: A fishing reel of a double bearing type which, when a spool is free, can switch the linked condition of the spool with a fishing line guide part over to the non-linked condition thereof, thereby being able to reduce the rotation resistance of the spool, enhance the spool-free rotation performance of the reel, extend the fishing line carry of the reel, and improve the fishing line play-out performance of the reel. Within an outer side plate, there is a drive device for driving a spool and a clutch mechanism for switching the condition of the spool and, within an outer side plate, there is a level wind drive switching device for switching the condition of a level wind device. The level wind drive switching device includes an engaging portion which is made up of an engaging portion formed in a spool shaft and an engaging portion formed in a drive gear.Type: GrantFiled: February 21, 1997Date of Patent: July 7, 1998Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5762278Abstract: A handle piece of a blind-hole construction with a closed axial outer end is fitted on a support shaft, fixedly secured to an end of a handle arm, in an axial direction from an outer end of the support shaft. A handle piece-side retaining portion and a support shaft-side retaining portion, which cooperate with each other to retain the handle piece relative to the support shaft, are provided on the handle piece and the support shaft, respectively. When the handle piece is fitted on the support shaft in the axial direction, the handle piece is retained relative to the support shaft by the two retaining portions, thereby enhancing the mounting operation.Type: GrantFiled: September 21, 1995Date of Patent: June 9, 1998Assignee: Daiwa Seiko, Inc.Inventors: Nobuyuki Yamaguchi, Takeo Miyazaki
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Patent number: 5692693Abstract: In a fishing reel of a double bearing type, a spool including two flanges respectively on the two sides thereof is supported between the two side plates of a reel main body in such a manner that the spool can be freely rotated when a fishline is played out, and, as a brake mechanism, the brake portion of a brake device for preventing the over-rotation of the spool by use of an eddy current caused by a magnet or by use of the centrifugal force of a brake shoe is stored and located within the fishline winding barrel portion of the spool, whereby the axial direction of a spool shaft can be reduced and thus the reel main body can be made compact.Type: GrantFiled: March 31, 1995Date of Patent: December 2, 1997Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5690288Abstract: In a dual bearing type reel, a one way clutch (38) is disposed so that the compactness and the balance of the reel are improved. The dual bearing type reel includes a spool (30) supported for rotation by a reel body between left and right side plates (14L, 14R). The rolling type one way clutch is provided for preventing reverse rotation of a handle (20) when the spool is rotated by a drive mechanism to wind the fishline. The rolling type one way clutch is provided within a supporting portion (36) which is disposed in a space (SP) between the left and right side plates of the reel body. In particular, the space is located radially outward from the outer surface of the spool.Type: GrantFiled: July 29, 1996Date of Patent: November 25, 1997Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5607116Abstract: A fishing reel reversal preventive device in which mounting of a switching operation shaft for operating a reversal preventive claw can be simplified to thereby facilitate the production of the reversal preventive device. The reversal preventive claw engageable with a reversal preventive ratchet wheel for preventing a fishing line from being played out is journaled on a reel casing, and the switching operation shaft having a cam part and an operation part for operating the claw to engage with or disengage from the ratchet wheel is held and supported rotatably between two support portions formed respectively on a main body and a cover member which constitute the reel casing.Type: GrantFiled: July 11, 1994Date of Patent: March 4, 1997Assignee: Daiwa Seiko, Inc.Inventors: Nobuyuki Yamaguchi, Tomohiro Murayama
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Patent number: 5588605Abstract: A braking force adjusting device for a fishing reel in which a nut on the market is combined, as a threaded engaging member, with the adjuster, so that the resultant adjuster is simple in construction and low in manufacturing cost. The adjuster includes an engaging portion, a central through-hole, operating levers (forming an operating member) turned with the fingers, and a fitting polygonal recess at the center. The engaging portion corresponds to the bottom of the recess. The threaded engaging member, which is a nut on the market, is fitted in the fitting polygonal recess merely by setting it therein. The threaded engaging member is engaged with the male-threaded portion of the handle shaft.Type: GrantFiled: September 7, 1994Date of Patent: December 31, 1996Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5582356Abstract: In a fishing reel in which a rotor is fixed onto a rotary quill with a nut, a securing member is non-rotatively fitted on the nut in such a manner that an engagement portion of the securing member is engaged with a projection formed on the rotor, in order to prevent the nut from rotating relative to the rotor. It is possible to prevent the nut from loosening from the rotary quill.Type: GrantFiled: September 5, 1995Date of Patent: December 10, 1996Assignee: Daiwa Seiko, Inc.Inventors: Mikiharu Kobayashi, Nobuyuki Yamaguchi
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Patent number: 5570851Abstract: A reverse rotation preventing mechanism in a spinning reel for fishing is characterized in that a rotor is secured to a rotary quill, which is rotated by the turning of a handle in kinematic conjunction therewith; a reverse rotation prevention member having reverse rotation prevention engagement portions is rotatably supported concentrically to the quill; a reverse rotation prevention claw is supported by the body of the reel so as to be swingable, and can be engaged with one of engagement portions; and a roller-type one-way clutch is provided between the rotor and the reverse rotation prevention member. When the rotor is reversely rotated in such a direction as to wind a fishline, the clutch member connects kinematically the rotor to the reverse rotation prevention member.Type: GrantFiled: September 23, 1994Date of Patent: November 5, 1996Assignee: Daiwa Seiko, Inc.Inventors: Nobuyuki Yamaguchi, Kazuo Hirano
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Patent number: 5564639Abstract: The present disclosure concerns a device for spinning reels used in fishing. At a rear end portion of a spool shaft, there is formed a tip portion having a non-circular section and at least one peripheral groove. A corresponding non-circular through hole is formed in a slide member so as to receive the tip portion of the spool shaft. A traverse cam shaft passes through a circular hole in the slide member. A securing plate, formed out of sheet material which can be elastically deformed, includes at least one engaging opening engaging with the peripheral groove(s) and a securing portion retaining the securing plate on the slide member through elastic deformation. According to the present invention, it is possible to reduce the number of components in a fishing reel, as well as make it easier to assemble the reel.Type: GrantFiled: May 27, 1994Date of Patent: October 15, 1996Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5503344Abstract: In a double bearing type fishing reel requiring a large braking force between a spool and a central shaft, a brake device having a large braking surface is stored in the water-tight side chamber. The water-tight side chamber is disposed opposite from another chamber storing the drive device for inputting handle rotation. Since the drive device and brake device are disposed separately from each other on either side of the spool, the weight of the reel is well balanced.Type: GrantFiled: April 5, 1994Date of Patent: April 2, 1996Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5485969Abstract: A reverse rotation preventive mechanism for preventing the reverse rotation of a rotor of a fishing reel. A frictional engagement member and a disk are provided for preventing the reverse rotation of the rotor with their mutually contactable surfaces having directional characteristic when the torque of the reverse rotation is low, and a swingable claw and a rachet are provided for preventing the reverse rotation of the rotor when the torque of the reverse rotation is high. The reverse rotation of the rotor can be hindered and stopped at initial stage without any undesired idle rotation. Even if the torque is high, the claw and the rachet are engaged with each other to surely prevent the further reverse rotation.Type: GrantFiled: August 31, 1993Date of Patent: January 23, 1996Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5476230Abstract: In a fishing reel, an elastically deformable cap side engagement of an annular cap is elastically engaged with a main body side engagement portion on a rear projection portion formed in a reel main body rotatably supporting a rotary shaft and accommodating therein a take-up drive mechanism, in order to retain the cap on the projection portion with simple manner.Type: GrantFiled: April 26, 1995Date of Patent: December 19, 1995Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5415358Abstract: A fishing reel includes a guide sleeve which is disposed around the reciprocating cam shaft of the fishline flat winding mechanism of the reel. A support member includes arc-shaped support portions on which the inner surface of the sleeve is fitted at one end thereof, and fitted support portions fitted in a support hole of a body of the reel and having side surfaces flush with those of the former support portions. The sleeve is accurately and securely supported concentrically to the cam shaft by the support member and the reel body so that the slider can smoothly slide back and forth on the sleeve.Type: GrantFiled: June 11, 1993Date of Patent: May 16, 1995Assignee: Daiwa Seiko, Inc.Inventor: Nobuyuki Yamaguchi
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Patent number: 5374001Abstract: A reverse rotation preventing mechanism in a spinning reel for fishing is characterized in that a rotor is secured to a rotary quill, which is rotated by the turning of a handle in kinematic conjunction therewith; a reverse rotation prevention member having reverse rotation prevention engagement portions is rotatably supported concentrically to the quill; a reverse rotation prevention claw is supported by the body of the reel so as to be swingable, and can be engaged with one of engagement portions; and a roller-type one-way clutch is provided between the rotor and the reverse rotation prevention member. When the rotor is reversely rotated in such a direction as to wind a fishline, the clutch member connects kinematically the rotor to the reverse rotation prevention member.Type: GrantFiled: January 21, 1993Date of Patent: December 20, 1994Assignee: Daiwa Seiko, Inc.Inventors: Nobuyuki Yamaguchi, Kazuo Hirano
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Patent number: 5370330Abstract: A one-way clutch of a fishing reel including an outer race; a plurality of rollers; and a retainer provided in the outer race for retaining the rollers inside of the outer race. The present invention is characterized in that an inner circumferential surface of the outer race is shaped as a polygon; free rotation spaces, in which the rollers are freely rotated, are defined on nook portions of the inner circumferential surface; and the other portions of the inner circumferential surface have rotation hindrance facets with which the rollers are put into contact so that the rollers are hindered from being rotated.Type: GrantFiled: January 24, 1994Date of Patent: December 6, 1994Assignee: Daiwa Seiko, Inc.Inventors: Masayuki Uehara, Kazuo Hirano, Nobuyuki Yamaguchi
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Patent number: 5253176Abstract: An apparatus for producing a variable configuration die by using a plurality of pins is disclosed. The apparatus comprises a pin storing device for storing the pins therein; a pin piling device in which the variable configuration die is to be produced; a robot device for transferring the pins from the pin storing device to the pin piling device for making up the variable configuration die; and a computer-aided control device for controlling the robot means in such a manner that the pins carried by the robot means are placed onto given positions of the pin piling device to cause the variable configuration die thus made of the piled pins in the pin piling device to have a layered structure. The variable configuration die thus made up has a recessed die surface which is defined by one ends of the piled pins.Type: GrantFiled: April 19, 1991Date of Patent: October 12, 1993Assignee: Nissan Motor Co., Ltd.Inventors: Masaaki Todoroki, Hidetoshi Imazu, Hideo Nomura, Nobuyuki Yamaguchi, Junichi Asano, Kenji Ishibashi, Koichi Yamamoto
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Patent number: 5230605Abstract: An axial-flow blower of stator vane controllable pitch type has an upstream-side opening of an air separator on the upstream side of a controllable pitch type inlet guide vane so that the recirculating flow in the air separator can be joined smoothly with the axial main flow irrespective of the set angle of controllable pitch angle.Type: GrantFiled: September 12, 1991Date of Patent: July 27, 1993Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Nobuyuki Yamaguchi, Mitsushige Goto
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Patent number: D362487Type: GrantFiled: December 28, 1993Date of Patent: September 19, 1995Assignee: Daiwa Seiko Inc.Inventors: Shin-ichi Asano, Nobuyuki Yamaguchi