摘要:
A method and apparatus for assembling a hub for magnetically chucking an optical disc on a disc table of a recording/reproducing apparatus under a force of magnetic attraction includes an assembly guide member having a first guide portion movable in a direction perpendicular to one major surface of the disc substrate so as to be engaged in a center opening in the disc substrate, and a second guide portion formed integrally with the first guide portion so that its center axis is aligned with the distal end of the first guide portion. The second guide portion is fitted in a spindle shaft opening in the hub. The assembly guide member having its first guide portion fitted in the center opening for positioning the disc substrate and the second guide portion being engaged in this state in the spindle shaft opening for centering the disc substrate with respect to the hub. The disc substrate and the hub may be assembled together in the correctly centered state via the assembly guide member by a simplified operation with minimum cost, thus assuring reduction in investment cost and improved productivity. In addition, the centering between the disc substrate and the hub, which usually required time-consuming laborious operation, may be achieved easily by employing the assembly guide member, so that the assembly process may be simplified thus lowering the cost of the disc-shaped recording medium.
摘要:
A method and apparatus for assembling a hub for magnetically chucking an optical disc on a disc table of a recording/reproducing apparatus under a force of magnetic attraction includes an assembly guide member having a first guide portion movable in a direction perpendicular to one major surface of the disc substrate so as to be engaged in a center opening in the disc substrate, and a second guide portion formed integrally with the first guide portion so that its center axis is aligned with the distal end of the first guide portion. The second guide portion is fitted in a spindle shaft opening in the hub. The assembly guide member its first guide portion fitted in the center opening for positioning the disc substrate and the second guide portion being engaged in this state in the spindle shaft opening for centering the disc substrate with respect to the hub. The disc substrate and the hub may be assembled together in the correctly centered state via the assembly guide member by a simplified operation with minimum cost, thus assuring reduction in investment cost and improved productivity. In addition, the centering between the disc substrate and the hub, which usually required time-consuming laborious operation, may be achieved easily by employing the assembly guide member, so that the assembly process may be simplified thus lowering the cost of the disc-shaped recording medium.
摘要:
A disk cartridge has a shutter. The shutter is slidably mounted on a shell body through a slider made of synthetic resin. The shutter has a plurality of pin-insertion holes on its mating surface. The slider has a plurality of connecting pins inserted into the pin-insertion holes, on its mating surface mating with the mating surface of the shutter. The connecting pins are formed at distal ends thereof with heads having larger diameters and support the shutter between the heads and the mating surface of the slider. The heads of the connecting pins are provided by plastic-deforming the distal ends of the connecting pins.
摘要:
A disk cartridge has a shutter. The shutter is slidably connected to a shell body by a slider made of synthetic resin. The shutter has a plurality of pin-insertion holes on its mating surface. The slider has a plurality of connecting pins that are inserted into the pin-insertion holes of the shutter so that its mating surface mates with the mating surface of the shutter. The connecting pins are formed at distal ends thereof with heads having larger diameters than the pin insertion holes to support the shutter between the heads and the mating surface of the slider. The heads of the connecting pins are provided by plastic-deforming the distal ends of the connecting pins.
摘要:
A pulse modulator generates a first pulse signal having a duty ratio which is adjusted such that a detection voltage which indicates the electrical state of an LED string to be driven matches a predetermined reference voltage. A first pulse signal is applied to a primary coil of a pulse transformer. A DC/DC converter includes a switching element the ON/OFF operation of which is controlled according to a signal that originates at a secondary coil of the pulse transformer. The DC/DC converter stabilizes an input voltage Vdc, and supplies the input voltage Vdc thus stabilized to the anode of the LED string.
摘要翻译:脉冲调制器产生具有调整后的占空比的第一脉冲信号,使得指示要驱动的LED串的电状态的检测电压与预定参考电压匹配。 第一脉冲信号被施加到脉冲变压器的初级线圈。 DC / DC转换器包括根据源自脉冲变压器的次级线圈的信号控制其ON / OFF操作的开关元件。 DC / DC转换器稳定输入电压Vdc,并且将如此稳定的输入电压Vdc提供给LED串的阳极。
摘要:
An exhaust gas purification system with which diesel particulate filter (“DPF”) regeneration can be continued even when deceleration occurs during the DPF regeneration. The system includes a regeneration deceleration period intake/exhaust control unit that, when a vehicle decelerates during the DPF regeneration, increases an exhaust gas flow rate through an exhaust pipe by controlling respective openings of an exhaust gas recirculation (“EGR”) device and an intake throttle and adjusting a turbocharging amount of a high pressure stage turbocharger.
摘要:
A hydrogen electrolysis apparatus includes a stack of unit cells each having a membrane electrode assembly sandwiched between an anode separator and a cathode separator. The anode separator has a first flow field which is supplied with water, and the cathode separator has a second flow field which produces high-pressure hydrogen through an electrolysis of the water. The cathode separator also has a first seal groove defined therein which extends around the second flow field and a first seal member inserted in the first seal groove. The first seal groove and the second flow field are held in fluid communication with each other through passageways. The passageways keep the first seal groove and the second flow field in direct fluid communication with each other in bypassing relation to the boundary between the cathode separator and a solid polymer electrolyte membrane.
摘要:
According to one embodiment, an optical head includes a light emitting substrate emitting light and a heat sink including a contact section in contact with an area different from a light emitting area of the light emitting substrate and a deformable section separated from the light emitting substrate and deformed according to thermal expansion of the light emitting substrate.
摘要:
In a liquid ejection apparatus, common liquid chambers adjacent to each other and connection passages extending from the adjacent common liquid chambers are separated by a partition wall. The partition wall has a first side surface and a second side surface opposite the first side surface. The first side surface define one of side surfaces of the common chamber and one of side surfaces of the connection passage extending from the common chamber. The second side surface defines one of side surfaces of the other common chamber and one of side surfaces of the other connection passage extending from the other common chamber. The partition wall has a curved surface connecting the first side surface to the second side surface in a vicinity of a position where the connection passages having the partition wall placed therebetween are connected to each other. A curvature of the curved surface is larger than a curvature of an arc having a diameter equal to a width of the partition wall.
摘要:
An ink-jet head includes a channel unit which includes a plurality of pressure chambers, a vibration plate stacked on the channel unit, and a piezoelectric material layer arranged on the vibration plate. The piezoelectric material layer includes a first portion functioning as a piezoelectric actuator, and a second portion functioning as a piezoelectric transformer which amplifies a driving signal to be supplied to the piezoelectric actuator. Accordingly, it is possible to realize a small-size ink-jet head with a built-in piezoelectric amplifier.