摘要:
A centrifugal braking apparatus for a baitcasting reel comprises a spool, pivot shafts, brake levers, and a ring-shaped braking member. The spool is rotatably supported between both side plates of a reel main body. Each of the pivot shafts is disposed on the spool so as to be arranged apart from a rotation axis of the spool in a radius direction thereof and extended at right angles to a straight line parallel with the rotation axis of the spool. Each of the brake levers has a tip end portion and a root end portion that is pivotably supported by the pivot shaft so that the tip end portion of the brake lever is movable toward a standard plane, which includes a central axis of the pivot shaft and is perpendicular to the rotation axis of the spool, under a function of centrifugal force produced by rotation of the spool. The ring-shaped braking member is provided on the reel main body so that the tip end portion of the brake lever can be brought into contact with the ring-shaped braking member.
摘要:
A brushless motor including a stator having teeth and a rotor having magnetic pole portions is disclosed. The magnetic pole portions are arranged to have the same polarities as each other. The rotor includes gaps that function as magnetic resistance at circumferential ends of each of the magnetic pole portions so that an iron core portion is formed between the circumferentially adjacent magnetic pole portions. Magnetic flux of the magnetic pole portions passes through the iron core portion along the radial direction. The gaps include a first gap located on the leading end of the magnetic pole portion in the rotation direction of the rotor and a second gap located on the trailing end of the magnetic pole portion in the rotation direction of the rotor. The circumferential width of the first gap is set to be greater than the circumferential width of the second gap.
摘要:
A motor including a stator and a rotor. The stator includes teeth and windings. Each tooth has a distal portion defined by a radially inward side of the stator. The rotor, which is arranged inward in the radial direction from the stator, includes a rotor core, magnets, and salient poles. Each salient pole is separated by a void from the magnet that is adjacent in the circumferential direction. The distal portion of each tooth is longer than a radially outward side of each magnet.
摘要:
The present invention provides a novel polypeptide having a β1,3-N-acetylglucosaminyltransferase activity; a method for producing the polypeptide; a DNA which encodes the polypeptide; a recombinant vector into which the DNA is inserted; a transformant comprising the recombinant vector; a method for producing a sugar chain or complex carbohydrate, using the polypeptide; a method for producing a sugar chain or complex carbohydrate, using the transformant; an antibody which recognizes the polypeptide; a method for screening a substance which changes the expression of the gene which encodes the polypeptide; and a method for screening a substance which changes the activity of the polypeptide.
摘要:
A rotor comprises a rotor core, a plurality of magnetic poles arranged in a circumferential direction of the rotor core, a plurality of salient poles and a plurality of auxiliary magnets each of which is disposed between the magnetic pole and the salient pole is provided. Each magnet pole has a field magnet pole that serves as a first magnetic pole, wherein the field magnet is a main magnet. Each salient pole is integrally formed with the rotor core between the two adjacent magnetic poles. Each salient pole serves as a second magnetic pole. The pole of the second magnetic pole is opposite from that of the first magnetic pole. The auxiliary magnet generates magnetic flux in a circumferential direction of the rotor core so that the magnetic pole and an opposing pole of the auxiliary magnet have the same polarity and the salient pole and another opposing pole of the auxiliary magnet have the same polarity.
摘要:
A motor including a stator, a rotor, and a current supply unit. The stator includes a stator core, which has a plurality of teeth, and a plurality of coils, which are wound around the teeth. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. Each of the salient poles is arranged between adjacent magnets spaced apart by a clearance from the magnets. When P represents the number of poles in the rotor and S represents the number of coils, a ratio P/S of the pole number P and the coil number S is represented by (4n−2)/3m (where n and m are integers that are greater than or equal to 2). The plurality of coils includes a plurality of coil groups including coils for three phases. The current supply unit executes a different current control for each coil groups.
摘要:
A motor is disclosed that includes a rotor having a consequent-pole structure. The rotor core of the rotor includes a magnetic flux dividing portion at each position that faces one of the magnets. Each magnetic flux dividing portion forcibly divides magnetic flux in the vicinity of the backside of the corresponding magnet to both sides in the circumferential direction.
摘要:
A brushless motor including a stator having teeth and a rotor having magnetic pole portions is disclosed. The magnetic pole portions are arranged to have the same polarities as each other. The rotor includes gaps that function as magnetic resistance at circumferential ends of each of the magnetic pole portions so that an iron core portion is formed between the circumferentially adjacent magnetic pole portions. Magnetic flux of the magnetic pole portions passes through the iron core portion along the radial direction. The gaps include a first gap located on the leading end of the magnetic pole portion in the rotation direction of the rotor and a second gap located on the trailing end of the magnetic pole portion in the rotation direction of the rotor. The circumferential width of the first gap is set to be greater than the circumferential width of the second gap.
摘要:
A motor including a stator and a rotor is disclosed. The rotor includes a first unit and a second unit. The first unit includes an N-pole first magnet and an S-pole second magnet. The first and the second magnets are alternately arranged along a circumferential direction of the rotor at equal angular intervals to form magnetic pole portions. The second unit includes an N-pole or S-pole third magnet and a salient pole arranged in the rotor core. The salient pole functions as a magnetic pole that differs from the third magnet. The third magnet and the salient pole are alternately arranged along the circumferential direction of the rotor to form magnetic pole portions. The number of magnetic pole portions of the second unit is the same as the number of magnetic pole portions of the first unit. The third magnet and the magnet of the first unit having the same pole as the third magnet are aligned in the axial direction of the rotor.
摘要:
The present invention provides a nucleic acid such as a micro-RNA or a micro-RNA precursor, having a novel sequence. The nucleic acid of the present invention is useful for detecting the expression or a mutation of a micro-RNA, separating cells, suppressing the expression of a gene having a target sequence, screening for a substance that promotes or suppresses a function of a micro-RNA, and diagnosing or treating a disease caused by a mast cell abnormality, a disease caused by an abnormality of mesenchymal stem cell proliferation or differentiation, cancers, and a disease caused by abnormal proliferation of cells, tissue hyperplasia or the like.