Patent application number | Description | Published |
20110235210 | SPINDLE MOTOR INCLUDING COMMUNICATING CHANNEL, AND DISK DRIVE APPARATUS - A spindle motor for use in a disk drive apparatus includes stationary and rotating portions. The stationary portion includes a shaft including a thrust plate. A sleeve portion includes an axial end surface arranged opposite the thrust plate. A first seal member is arranged opposite the thrust plate on an opposite side with respect to the sleeve portion. The thrust plate preferably includes a plate communicating hole arranged to connect first and second thrust gaps defined, respectively, between the thrust plate and the sleeve portion and between the thrust plate and the first seal member. The sleeve portion preferably includes a sleeve communicating hole arranged to connect the first thrust gap with an opposite axial side thereof. A lubricant is arranged to fill a communicating channel extending from a first to a second capillary seal portion through the plate communicating hole and the sleeve communicating hole. | 09-29-2011 |
20130335859 | BASE PLATE, BASE UNIT, MOTOR AND DISK DRIVE APPARATUS - A base plate of a disk drive apparatus includes a motor base disposed around a central axis and a base body portion extending radially outward of the motor base. The motor base is made of a metallic material of a first type. The base body portion is made of a metallic material of a second type. Thus, the axial thickness of a portion of the base plate close to the central axis can be significantly reduced and a reduction in the stiffness of the portion can be prevented. Further, the motor base includes a flange portion and a plastic deforming portion. The flange portion and the plastic deforming portion are respectively in contact with at least a portion of both axial end surfaces of an inner end portion of the base body portion. Thus, extraction of the motor base in the axial direction is prevented. | 12-19-2013 |
20140042844 | SPINDLE MOTOR AND DISK DRIVE APPARATUS - A base member of a spindle motor includes a base through-hole and a base groove portion. The base through-hole extends through a bottom portion of the base member. The base groove portion is arranged on a lower surface of the base member to extend radially outward from the lower end portion of the base through-hole. A first insulating sheet portion is fixed to a bottom surface of the base groove portion by an adhesive agent or sticky material. Lead wires extending from coils are led out into the base groove portion through the base through-hole. The lead wires extend outward along a lower surface of the first insulating sheet portion. The lead wires are soldered to land portions of a circuit substrate at an outer side of the bottom portion. A portion of the first insulating sheet portion overlaps with a lower opening of the base through-hole in plan view. | 02-13-2014 |
20140153132 | SPINDLE MOTOR AND DISK DRIVE APPARATUS - A base member of a motor includes a base through-hole extending through a bottom portion thereof. Two or more lead wires extending from coils pass through the base through-hole. Thus, as compared with a case where the lead wires pass through different base through-holes respectively, it is possible to reduce the number of the base through-holes. Accordingly, it is possible to minimize or prevent a reduction in the rigidity of the base member. Insulating sheet portions are arranged on the lower and upper surfaces of the base member. Each insulating sheet portion includes an overhang portion which overlaps with the base through-hole when seen in a plan view. The lead wires extending from the coils are led out toward the lower surface of the base member through holes, cutouts, or slits defined in the overhang portion. This makes it possible to easily distinguish the led-out lead wires from each other. | 06-05-2014 |
Patent application number | Description | Published |
20120315779 | CONNECTOR AND CONNECTION DEVICE FOR ELECTRONIC EQUIPMENT - The length of a waterproof and dustproof connector can be reduced to decrease its occupation area so as to secure the occupied area of the circuit board for electronic equipment and so as to design the layout of the electronic equipment more freely and so as to downsize the electronic equipment. The connector for electronic equipment includes an approximately cylindrical housing | 12-13-2012 |
20130330951 | CONNECTOR OF ELECTRONIC DEVICE, PLUG OF ELECTRONIC DEVICE, AND WATERPROOF STRUCTURE OF ELECTRONIC DEVICE - Provided is a connector of an electronic device, in which a space in a housing of the electronic device can be enlarged, the number of circuits can be increased, a battery can be made larger, and the housing of the electronic device can be made thinner and more compact. The connector of the electronic device is provided with a substantially cylindrical case; connector-side terminals introduced into the case; and a sealing material that is formed in the vicinity of the end of the case on a plug insertion side so as to protrude to the plug insertion side, wherein a first convex stripe is formed along the inner circumference of the protruding section of the sealing material, and the first convex stripe is formed so as to be circumferentially pressed against and brought into contact with an outer circumferential surface of a part of a cover to be inserted. | 12-12-2013 |
20140308854 | MULTIPOLAR SINGLE-HEAD PLUG AND METHOD FOR MANUFACTURING SAME - A multipolar single-head plug comprises a bar electrode exposed at a tip thereof, tubular electrodes concentrically arranged on an outer circumference of the bar electrode and exposed at the outer circumference on a side closer to a root than the exposed part of the bar electrode at the tip and an insulator composed of a first insulating part, and second insulating parts. A middle section of at least one of the insulating parts is provided with an insulating material such as an electrodeposition coating part or an insulating tube separate from the insulating resin for insert molding. The separate insulating material is provided so as to cover a given area of the outer circumference of the bar electrode or a given area of an outer circumference of the tubular electrode. | 10-16-2014 |
Patent application number | Description | Published |
20120259497 | DRIVE CONTROLLER OF OPERATING MACHINE - A drive controller of an operating machine configured to drive a structure by a hydraulic motor and an electric motor includes: a remote control valve configured to determine the operation amount of the structure; an electric motor torque calculation portion configured to calculate torque of the electric motor; a hydraulic motor torque calculation portion configured to calculate torque of the hydraulic motor; a controller configured to transmit an opening position control signal to the control valve based on the operation amount determined by the remote control valve such that torque necessary to drive the structure is obtained from the torque of the electric motor and the torque of the hydraulic motor; and solenoid-operated reducing valves and each configured to reduce a pilot pressure, to be applied to the control valve, based on the opening position control signal output from the controller. | 10-11-2012 |
20130213026 | DRIVE CONTROL METHOD OF OPERATING MACHINE - In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve configured to determine an operation amount of the structure is subjected to speed feedback control performed based on the actual rotation speed of the hydraulic motor and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor. With this, a tilting angle command is generated such that the operating oil, the amount of which is necessary at the actual rotation speed of the hydraulic motor, is ejected, and the tilting angle of the hydraulic pump is controlled. | 08-22-2013 |
20130332036 | DRIVE CONTROL METHOD OF OPERATING MACHINE - In drive control of an operating machine configured to drive a structure by a hydraulic motor configured to be driven by operating oil supplied from a hydraulic pump through a control valve and an electric motor configured to cooperate with the hydraulic motor, a speed command generated based on a manipulation amount of a remote control valve configured to determine an operation amount of the structure is subjected to speed feedback control performed based on an actual rotation speed of the hydraulic motor and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor. | 12-12-2013 |