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JP5415751B2 |
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JP2014027843A |
To provide a structure which securely fixes a stepping motor to a circuit board.A stepping motor includes: a boss part 216 which stores a shaft 403 at the inner side thereof, protrudes in an axial direction, and is used for fitting in a ...
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JP2014018041A |
To provide a quiet and compact stepping motor that restricts displacement of a shaft in a radial direction inexpensively without changing the total length of the motor and reduces rattle noise.A stepping motor includes: yokes 4, 5, 6, an...
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JP2014017905A |
To provide a quiet and compact stepping motor that restricts displacement of a shaft in a radial direction and reduces rattle noise.A stepping motor includes: yokes 4, 5, 6, and 7 each having a plurality of pole teeth that are formed lik...
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JP2014018040A |
To provide a quiet and compact stepping motor that restricts displacement of a shaft in a radial direction inexpensively without changing the total length of the motor and reduces rattle noise.A stepping motor includes: yokes each having...
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JP2014003832A |
To provide a stepping motor with high quietness, which reduces a strike sound of a rotor magnet and a bearing section while a drive torque characteristic is maintained.A stepping motor includes: a rotor having a rotor magnet fixed to a r...
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JP5383080B2 |
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JP5374314B2 |
To provide a waterproof structure of a flow control valve wherein a sealing structure for preventing a fluid flowing through a valve from reaching a stator is configured very easily. The waterproof structure of a flow control valve consi...
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JP2013255344A |
To securely remove a backlash even when gear precision is inferior.A pair of driving-side spur gears 2, 3 are rotated by stepping motors 4, 5, and rotor shafts 4a, 5a of the pair of stepping motors 4, 5 are mutually set so that tooth fac...
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JP5373352B2 |
To provide a camera blade driver that an electromagnetic actuator having approximately U-shaped yoke drives at least one of the blades back and forth and that its design flexibility can be maintained even when making it thin and using a ...
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JP5373006B2 |
The invention provides a hybrid stepping motor which enables magnetic flux that penetrates through rotor iron cores to be balanced and equalized, reduces leakage magnetic flux, increases effective magnetic flux, improves motor property a...
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JP5373351B2 |
To provide a blade drive device for a camera which causes an electromagnetic actuator having a substantially U-shaped yoke to reciprocate at least one blade, wherein reduction in thickness of the device and small plane shape of a base pl...
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JP5365171B2 |
To provide a motor that simultaneously achieves reduction in cogging and ripple. A motor 1 has a stator 2, in which a plurality of teeth 21 are formed at equal intervals in a specific direction, and a moving element 3 supported freely mo...
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JP3187632U |
[Subject] The weight saving of the rotor is carried out, inertia is made small, and a rotor for hybrid form stepping motors which can make an usable zone large is provided. [Means for Solution] Rotor 1A of a hybrid form stepping motor co...
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JP5351530B2 |
To increase the supporting strength of a terminal base, in a motor formed with the terminal base is formed by insert molding into a core. A terminal base 30 is integrally insert-molded to a terminal base holding part 16 which passes a no...
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JP5351529B2 |
The invention provides a motor including a terminal block that is insert molded into a core, so as to increase the strength to support the terminal block. A stator has paired inner cores configured by two inner cores facing back to back ...
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JP5348459B2 |
A power transmission device which is free from a possibility of breakage of a driving member is provided. A stepping otor (driving member) 61a configured to be driven on the basis of a command signal from a controller 70, a lead screw po...
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JP5340662B2 |
To provide a permanent magnet type stepping motor with a small diameter by reducing the thickness of a terminal holder in the radius direction. In a stepping motor 1, a pair of inner yokes 13 which has multiple pole teeth 13a, a pair of ...
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JP5340859B2 |
To provide a step motor provided with a means for positioning a rotor axial center and a stator hole with high accuracy, and including a structure for positioning a rotor and stator, in which a positioning member substantially does not e...
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JP2013226038A |
To provide an improved linear actuator incorporating a stepping motor having high detent torque without associated high vibration during operation.A linear actuator with a high holding force providing good irreversibility has a high effi...
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JP2012060823A5 |
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JP2012065505A5 |
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JP2013223416A |
To provide a drive unit for amplifying a magnetic force, which sandwiches faces of both N and S poles of a permanent magnet having a strong magnetic force, between core edges of two electric magnets, arranges one or more permanent magnet...
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JP2013223368A |
To provide a motor which prevents a bearing holder, which slidably holds a bearing supporting the anti-output side end part of a rotation shaft, from being fastened to a permanent magnet fixed to the rotation shaft.A motor includes: a ro...
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JP2012058585A5 |
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JP5318758B2 |
The invention relates to a ring coil motor (1, 20) with a primary part (3, 21) and a secondary part (2, 22), wherein the primary part (3, 21) has a ring coil (6, 25) and permanent magnets (9, 27).
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JP5317228B2 |
To provide an inexpensive rotary electric machine capable of easily and certainly fixing a motor cover which is arranged on one side of a stator core in the axis direction. A rotary electric machine includes: a stator which is constitute...
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JP2013212039A |
To provide a stepping motor which enables a stator to be coupled to front and end plates only by assembly.A stepping motor has a structure where a stator is sandwiched by a front plate 210 and an end plate 310 from axial front and rear s...
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JP2013211967A |
To provide a stepping motor having a structure which makes looseness less likely to be caused between a bobbin and members forming a stator.A protruding part 237 having an inclined surface is provided at a bobbin 230, and a pore 224 is p...
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JP2013207960A |
To reduce a load to a coil terminal while simplifying a partner side connector terminal.In a valve drive device 1 driving a valve body 72 by means of a motor M in which a pair of stator sets 50A and 50B are arranged so as to be aligned i...
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JP2013207921A |
To provide an actuator that is easy to be assembled and that can absorb influences of dimensional accuracy of configuration components, and to provide a method of manufacturing an actuator.In a state that an actuator main body 171 is for...
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JP2013201825A |
To provide a stepping motor capable of outputting a higher torque while having the same outer diameter dimension and suppressing vibration and noise.A hybrid stepping motor 10 includes a rotor 30 on an outer circumferential surface of wh...
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JP2013201824A |
To provide a stepping motor capable of outputting a higher torque while having the same outer diameter dimension and suppressing vibration and noise.A hybrid stepping motor 10 includes a rotor 30 on an outer circumferential surface of wh...
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JP5306384B2 |
A motor capable of performing mechanical position adjustment of a magnetic detection unit to thereby adjust a phase difference between signals output from respective two magnetosensitive pole pieces. A rotor includes a magnet having an a...
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JP2013198247A |
To solve problems that, in a conventional art, because a 180[deg/step]-single-phase step motor generally used in a wrist watch having only a small battery has a simple configuration and is too small, there is a little of room for improve...
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JP2013192447A |
To provide a motor easy for a user to check a joint state in joint constitution where a tabular member is dissolved and joined to a stator, and to provide a method of manufacturing the motor.A motor 2 comprises: a stator 21 with a rotor ...
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JP5294830B2 |
A motor may include a stator formed with a rotor arrangement hole, a rotor disposed in the rotor arrangement hole, and a plate-like member disposed on at least one end side in an axial direction of the stator. The plate-like member is jo...
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JP5294699B2 |
A motor may include an urging member which is mounted on a fixed body for urging the bearing, and a pair of engaging grooves formed on the fixed body. The urging member may includes a pair of hook parts which are bent from respective tip...
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JP2013176200A |
To provide an actuator that reduces vibration noise.A polyurethane vibration-proof sheet 60 has an annular shape approximately identical to a cross sectional shape of a stator yoke 43 of a stepping motor 40, and has a thickness of 0.9 mm...
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JP2013172541A |
To provide a linear actuator having ball screw structure without forming a ball groove on the inner diameter side of a rotor.A linear actuator includes: an output axis 150 on which a spiral groove 150a is formed; a retainer 114 which has...
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JP2013158110A |
To improve the balance of a counter electromotive voltage rate between an A phase and a B phase in order to improve rotation accuracy of a stepping motor.A stepping motor includes: a rotor 2 having a permanent magnet 23 subjected to mult...
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JP5264323B2 |
A motor may include a rotor having a rotation shaft, a stator disposed on an outer peripheral side of the rotor, a frame fixed to the stator, and an urging member made of metal for urging an end part on an output side of the rotation sha...
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JP5264322B2 |
A motor may include a rotor having a rotation shaft, a stator disposed on an outer peripheral side of the rotor, an output side bearing which supports an end part on an output side of the rotation shaft in a radial direction and an axial...
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JP2013150436A |
To fix a bearing plate to a yoke and an end plate with a simple structure.A cylindrical yoke 42 is arranged so as to surround a rotation shaft 21 around which a magnet 22 is fixed. A plurality of pole teeth 43 are formed to an inner peri...
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JP2013150373A |
To provide a permanent magnet type stepping motor integrated rotary mechanism, having a simple configuration, small sized, capable of outputting high torque, and highly versatile.In a permanent magnet type stepping motor, a rotor 6, whic...
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JP2013150401A |
To fix a bearing plate to a yoke and an end plate with a simple structure.In a state where a protrusion 63 is moved to an engaging hole 71b, a bearing plate 6 is in such a state that the extension surface 63a of the protrusion 63 abuts a...
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JP2013146170A |
To fix a bearing plate to a yoke and an end plate with a simple structure.A support part 44 is provided in an area ranging from an end part of an outer yoke 42 to a pole tooth 43, and a bearing plate 6 is housed in the outer yoke 42 so t...
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JP2013142576A |
To solve the problems that: when an external load acts in either the normal rotation direction or the reverse rotation direction in a step motor using a mechanism for converting a swing motion of a rotor used continuous needle handling a...
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JP5241184B2 |
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JP2013137404A |
To suppress oscillation and noise as much as possible in a driving device including a driven gear formed of a stepping motor and a resin material.A driving device includes a stepping motor 27 directly connected to a pinion gear 28 having...
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