SHIMANO Inc.

Ōsaka, Japan

SHIMANO Inc.

Ōsaka, Japan

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The present invention is directed to a magnetic seal device comprising a magnetic sleeve (7) having a cylindrical body (71) and fitting on an outer peripheral surface of a rotatable shaft (3), a ring shaped magnet (8) being arranged radially outwardly from an outer peripheral surface of the magnetic sleeve (7) with a gap, and forming a magnetic circuit between the outer peripheral surface of the magnetic sleeve (7) and the ring shaped magnet (8), and a magnetic fluid (10) being maintained at the gap. The magnetic sleeve (7) includes a groove (72) arranged circumferentially around the outer peripheral surface of the magnetic sleeve (7), and a flange (73) extending radially outwardly from and circumferentially around the outer peripheral surface of the magnetic sleeve (7), wherein the flange has a diameter that is larger than a diameter of the outer peripheral surface of the magnetic sleeve (7). The invention is further directed to a fishing reel comprising such a magnetic sleeve.


Patent
Shimano Inc. | Date: 2017-03-15

A spool (4) for preventing backlash includes a bobbin trunk (7a), a rear flange portion (18e), and a front flange portion (8). The front flange portion (8) includes a first protruding portion (117a) and a first oblique portion (117b) that protrudes upward and forward from a tip of the first protruding portion (117a). The rear flange portion (18e) includes a second protruding portion (18a) and a second oblique portion (18b) that protrudes upward and rearward from a tip of the second protruding portion (18a). A length (B) in the radial direction of the second protruding portion (18b) is approximately the same as a length (A) of the first protruding portion (117a).


Patent
Shimano Inc. | Date: 2017-04-26

The present invention is directed to a fishing reel. The fishing reel comprises a reel body (1), a housing part (4) including an opening part, a driving member including a pinion (3) that is rotatably supported by the reel body (1) and extends through the opening part of the housing part (4), and a magnetic seal device affixed to the housing part (4) and including a central opening through which the pinion (3) extends. The magnetic seal device includes a magnet (8), first and second magnetic plates (9a, 9b) securing the magnet (8) therebetween and a magnetic fluid (10) that is maintained at a gap between the driving member and at least one of the first and second magnetic plates (9a, 9b). The fishing reel is characterized in that an external diameter of the first magnetic plate (9a) is larger than an external diameter of the second magnetic plate (9b).


Patent
Shimano Inc. | Date: 2016-10-26

A bicycle drive unit basically has a transmission, a motor and a resultant force member. The motor is configured to transmit rotation to the transmission, and a resultant force member to which rotation from the transmission and from the manual drive force is transmitted. The transmission has a first sun gear, a second sun gear, a first ring gear, a second ring gear, a first planetary gear, a second planetary gear and a third planetary gear. The first, second and third planetary gears are separate individual gears. The first planetary gear is engaged with the first sun gear and the first ring gear. The second planetary gear is engaged with the second sun gear and the third planetary gear. The third planetary gear is engaged with the second planetary gear and the second ring gear.


Patent
Shimano Inc. | Date: 2016-10-26

A bicycle drive unit includes a first planetary gear mechanism, a first motor, a second motor and a resultant force member. The first planetary gear mechanism includes a first input body, a first output body and a first transmission body that transmits the rotation of the first input body to the first output body. The first motor is configured to rotate the first input body. The second motor is configured to rotate the first transmission body. The resultant force member is selectively rotated by the rotation of the first output body and by a manual drive force without interposing the first planetary gear mechanism.


Patent
Shimano Inc. | Date: 2016-10-27

A bicycle drive unit includes a housing, an output unit, a first motor and a second motor. The housing rotatably support a crankshaft. The output unit is provided in the housing and to which rotation of the crankshaft is transmitted. The first motor is provided in the housing that can assist a manual drive force without changing the ratio of the rotational speed of the output unit relative to the rotational speed of the crankshaft. The second motor is provided in the housing to assist the manual drive force without changing the ratio of the rotational speed of the output unit relative to the rotational speed of the crankshaft.


Patent
Shimano Inc. | Date: 2016-08-18

A bicycle drive unit is provided that basically includes a planetary gear mechanism, a first motor and a worm drive. The planetary gear mechanism includes an input body, an output body and transmission body. The input body is configured to receive rotation from a crankshaft. The output body is configured to output rotation from the input body to outside of the bicycle drive unit. The transmission body is configured to control a rotation ratio of the input body to the output body. The first motor is configured to transmit rotation to the transmission body. The worm drive is provided in a transmission path that transmits rotation between the first motor and the transmission body.


A bicycle control device controls a motor to assist driving of a wheel of a bicycle. The bicycle control device includes a controller configured to control the motor and an operation unit configured to be operated to switch operation modes of the motor. The controller includes at least a walk mode as the operation modes. In a case that a rotation speed of a wheel becomes lower than or equal to a predetermined value while the motor is driven in the walk mode, the controller is configured to control the motor so as to gradually decrease output of the motor and then stop driving the motor.


A bicycle control device controls a motor to assist driving of a wheel of a bicycle. The bicycle control device includes an input unit and a controller that switches, when the input unit is operated, between a ride mode that controls the motor in correspondence with manual driving force and a walk mode that drives the motor in correspondence with the operation of the input unit. After switching to the walk mode, the controller drives the motor in correspondence with the operation of the input unit.


Patent
Shimano Inc. | Date: 2017-06-07

The present invention relates to a spool 4 for a spinning reel being mountable on a spool shaft 15. The spool 4 includes a spool body 42 that rotates with respect to the spool shaft 15. The spool 4 also includes a drag mechanism 43 between the spool body 42 and the spool shaft 15 to apply a braking force against a rotation of the spool body 42. The spool 4 further includes a radiator 44 in the spool body 42 and in contact with the drag mechanism 43. The radiator 44 rotates with respect to one of the spool body 42 or the spool shaft 15. The radiator 44 does not rotate with respect to the other one of the spool body 42 or the spool shaft 15. The invention further relates to a spinning reel comprising such a spool 4.

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