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Patent Searching and Data


Matches 101 - 150 out of 393

Document Document Title
WO/1994/007299A2
A torque motor (8) comprises an armature (30) placed radially between a central bar (31) and an external ferromagnetic tubular portion (32). The central bar (31) comprises two portions of the same cylinder (33A, 33B) diametrically opposi...  
WO/1993/008539A1
A compact beam scanning information readout device and method for reading bar code or other information requires little or no orientation of the information to be scanned by virtue of its raster or omni directional scan capabilities. Onl...  
WO1992009133A3  
WO/1992/010873A1
An actuating system for a primary flight control surface including unique electric drive motors having an integral detent mode. The motors include a unique laminated stator core and means for changing the continuity of the magnetic circu...  
WO/1992/009133A2
A miniature device for moving a reference plane or point on an axis in rotational or x-y directions, particularly useful for two dimensional beam scanning. The device consists of a ferromagnetic ring surrounding a magnetic core which is ...  
WO/1991/006108A1
The invention relates to a monophase electromagnetic actuator comprising a stator structure and a movable member having a thin magnetized part. The thin magnetized part presents two polar portions (1, 2) separated by a separation line (3...  
WO/1991/000641A1
A compact torque motor providing bi-directional, limited angle reactionless torque to opposed structures. A motor (10, 150) includes an X-shaped core (12), and first and second pole pieces (14 and 16), which are disposed at opposite side...  
WO/1989/006063A1
An electric motor comprises a stator element (5) made of magnetic material, a moving element (2) made of magnetic material and carrying at least one permanent magnet (13A, 13B) and adapted to run along sections of the stator element whil...  
WO/1987/006051A1
A two-axis force motor (10) has an armature (12) mounted within a body (11) for omni-directional pivotal movement relative to the body. The motor has an electrical section for causing the armature to pivot selectively in either or both o...  
WO/1982/002619A1
An electric motor, for instance of limited angle type for driving a servo-actuator, has two or more motor units each including a wound stator within each of which is a respective rotor carrying spaced permanent magnets, the rotors being ...  
JP6587753B2  
JP2019509705A
A torque motor has a machinery reference member, and an armature and a field assembly. Including the piece of a field pole as which the above-mentioned field assembly specifies an opening very much, the above-mentioned armature is attach...  
JP5098105B2  
JP4516075B2  
JP2009283946A
To provide an improved torque motor to facilitate construction by a MEMS technique.The torque motor includes a base, four polepieces extending away from the base, the polepieces being separated from one another and being arranged at the ...  
JP4361930B2  
JP4235486B2  
JP4233701B2  
JP2008545538A
An element [the present invention is rotation 支承 equipment especially used for the circular table which a machine tool can rotate and] to 支承 rotatably, especially the 1st equipment portion combinable with a circular table, The 2n...  
JP4183761B2  
JP4164297B2  
JP4077630B2  
JP4012170B2  
JP3996414B2  
JP3950756B2
To enable a state of a non-driving member interlocked with a rotation of a magnet to be set as three states by setting the rotating state of the magnet to the three states by switching a coil energizing control to a non-energizing, posit...  
JPWO2005057051A1
迅速かつ円滑に伝達トルクの切り替えができ ると共に、装置コストの安価化及び装置のコ ンパクト化が可能な電動アクチュエータ(1 0)及びその制御装置を提供する。回転...  
JP3887343B2
To provide a rotary actuator which can be displaced to an arbitrary rotary angle position in response to the amplitude and the energizing direction of an exciting current with a simple structure. The rotary actuator includes a stator hav...  
JP3887342B2
To realize displacing of a proportional rotary torquer to an arbitrary rotary angle position in response to the amplitude and the energizing direction of an exciting current with a simple structure. Salient poles 3a, 3b formed in a rotor...  
JP2007501348A
A bistability magnetism latch is equipped with the rotator (26) between an upper part stator (12) and a bottom stator (14), and an upper part stator (12) and a bottom stator (14), and it is constituted so that it may rotate between the 1...  
JP3865403B2  
JP2006517779A
A torque motor (20) separates from a base (21) and a base, and is prolonged, Four pole pieces (22A, 22B, 22C, 22D) which it is mutually separated, is arranged at the corner part of a virtual polygon (27), and carry out a termination with...  
JP3793965B2
To provide a stator core of a torque motor capable of improving assembling workability at manufacturing without causing reduction in generated torque. The stator core 11 of the torque motor comprises an arm 14 to which a coil 4 is insert...  
JP2006149193A
To constitute an electric motor which can hold an actuator at its position, even in a state with a current does not flowing.In the electric motor, having a magnet system which has at least one permanent magnet and a rotor or the electric...  
JP2006074884A
To provide a torque motor reduced in the length of a magnetic path from a coil part to a rotor, and thereby reduced in weight by the amount of the reduction of the length.The torque motor 10 comprises at least: the rotor 12 with a perman...  
JP3740381B2
To enable continuously drive force control of a movable member mounted to a member to be driven to be subjected by a control coil provided in a fixing member for reducing the weight of the movable member, and at the same time, to elimina...  
JP3725475B2  
JP2005224091A
To provide an actuator which maintains high efficiency, can react to an increase in pole, has good assemblability, and can be manufactured at a low cost while it is thinned.The actuator includes: a magnet 1 which is formed in a ring shap...  
JP3684118B2
To simplify the control and to increase the stroke by respectively providing stators and a moving element with uneven parts vertically to the displacement direction, and engaging the uneven parts of the stators with the uneven part of th...  
JP3665710B2
To improve the responsiveness of a DC torque motor by giving such angle-torque characteristics that the positive peak torque of the motor is distributed unevenly on the smaller angle side in the operating angle range of the motor, and th...  
JP3641075B2
To provide a rotary actuator in which a maximum rotational angle exceeding 180° can be attained and a rotor can produce an uniform torque while suppressing fluctuation during variation of the rotational angle. The rotary actuator compri...  
JP3635209B2
To provide a rotor magnet structure which has a single-phase claw pole structure, can secure detent torque and dynamic torque sufficiently, has characteristics with a wide rotation movement angle range, has stable characteristics and is ...  
JP3636437B2
To provide a limited angular displacement motor where a shaft has proper angle centering characteristics, without the assistance of independent magnetically centering mechanism. At a second axial direction position (24) of a stator (18),...  
JP3636435B2
To provide a torque motor which is easy to assemble and disassemble. This torque motor is provided with a base 12 supporting an armature 22 and having a plurality of through holes 14, 16, 18, 20, a lower pole piece 38 constituted of divi...  
JP2005020939A
To provide a torque motor which can improve a size reduction and a weight reduction by constituting a rotor and a stator so that a necessary operating angle range may be satisfied in the torque motor having an operating angle range of le...  
JP2004312829A
To provide a rotary actuator which can be displaced to an arbitrary rotary angle position in response to the amplitude and the energizing direction of an exciting current with a simple structure.The rotary actuator includes a stator havi...  
JP2004312828A
To realize displacing of a proportional rotary torquer to an arbitrary rotary angle position in response to the amplitude and the energizing direction of an exciting current with a simple structure.Salient poles 3a, 3b formed in a rotor ...  
JP3579272B2  
JP2004257321A
To provide an integrated circuit integral type actuator which can set the temperature of an integrated circuit to lower than an allowable temperature by suppressing the temperature rise of the integrated circuit.The integrated circuit in...  
JP2004207393A
To provide a rotary solenoid that can be stabilized in performance.This rotary solenoid 10 is provided with a pair of first and second yokes 21 and 22 disposed to face to a rotor 24 in which a pair of magnetic poles are formed of permane...  
JP2004179422A
To provide a rotary solenoid for reducing the rotational energy of a rotor with a simple structure so as to enhance the reliability and decrease the cost.The rotary solenoid 10 is provided with a rotary shaft 18, a permanent magnet 20 fi...  

Matches 101 - 150 out of 393