摘要:
A subject part-aligning apparatus has a simple structure and causes less damage to chip parts, and operates well even if a chip discharge passage thereof is clogged or overflows with the chip parts. The apparatus has a part-holding chamber for accommodating a number of chip parts. An arc-shaped chute groove is formed in the inner surface of the bottom of the part-holding chamber to orient the chip parts in a given direction and to slidably guide the chips. A gate port is formed at the lower end of the chute groove to permit the chip parts sliding downward in a given orientation along the chute groove to pass in series (e.g., one by one). The discharge passage is formed to be tangential to the chute groove to align the passed chip parts in a line and to discharge the chip parts. A rotary impeller having blades is mounted in the part-holding chamber. The blades urge any chip part halted in an abnormal orientation in the gate port toward a direction opposite to the direction in which the chips are discharged.
摘要:
A variable resistor is constructed to reliably seal the space between a rotor and a substrate without insert-molding the substrate into a case, and to be produced at a very low cost. This variable resistor includes a hollow square-prism shaped case which is open at the top and the bottom, a substrate which is fitted into the lower opening of the case, and on the top surface of which a collector electrode and an arcuate resistor are provided, a rotor rotatably fitted into the upper opening of the case, a slider mounted on the bottom surface of the rotor and making sliding contact with the collector electrode and the resistor, an annular packing member disposed between the rotor and the substrate for sealing the space therebetween, terminals mounted on the substrate and electrically connected to the resistor and the collector electrode, and a metallic cover.
摘要:
A component carrying device has a simple constitution, and is capable of lining up components and carrying them in one direction with high reliability. The device comprises a guide groove for lining up components into one line and guiding them; a carrying member, provided on the bottom face of the guide groove, which can move forward and backward along the direction of the groove; and driving means, for driving the carrying member forward and backward at a higher speed when moving backward than when moving forward. The speed of the carrying member when moving forward is a speed at which a predetermined sustained frictional force acts between the carrying member and the components, which are mounted on the top face of the carrying member; and the speed of the carrying member when moving backward is a speed at which the frictional force between the carrying member and the components mounted on its top face, substantially breaks, so that the components are carried forward by the difference in frictional force.
摘要:
A component carrying device has a simple constitution, and is capable of lining up components and carrying them in one direction with high reliability. The device comprises a guide groove for lining up components into one line and guiding them; a carrying member, provided on the bottom face of the guide groove, which can move forward and backward along the direction of the groove; and driving means, for driving the carrying member forward and backward at a higher speed when moving backward than when moving forward. The speed of the carrying member when moving forward is a speed at which a predetermined sustained frictional force acts between the carrying member and the components, which are mounted on the top face of the carrying member; and the speed of the carrying member when moving backward is a speed at which the frictional force between the carrying member and the components mounted on its top face, substantially breaks, so that the components are carried forward by the difference in frictional force.
摘要:
A part transfer apparatus includes a guide groove for aligning and guiding parts, a blade placed at the bottom of the guide groove so as to move forward and backward in the direction of the groove, and a driving device for reciprocally driving the blade so that the speed of backward movement of the blade is higher than the speed of forward movement. The part transfer apparatus conveys the parts forward by using the difference in frictional force. The driving device includes a cam, and a cam lever having a cam follower in contact with the peripheral surface of the cam. The rear end of the blade is in contact with the front side of the cam lever. Since the rotational motion of the cam is converted into the pivotal motion of the cam lever, and further into the reciprocating motion of the blade, vertical force hardly acts on the blade, and vertical vibration of the blade is inhibited. This makes it possible to prevent parts laid on the blade from being lifted and popped off, and to thereby stably transfer the parts.
摘要:
A part-aligning apparatus is provided which is not overly complex in structure, which reduces the damage to chip parts, and which operates well even if its chip discharge passage is clogged or overflows. The apparatus has a part-holding chamber for accommodating a number of chip parts. The chamber is formed between a stationary drum and a rotary drum. The rotary drum has an annular portion forming an outer wall of the part-holding chamber. An arc-shaped chute groove is formed in the inner surface of the annular portion. At least one gate hole extends through the annular portion and is in communication with the chute groove. An arc-shaped guide groove corresponding in position to the outer opening of the gate hole is formed in the inner surface of the stationary drum. A discharge passage is formed at the lower end of the guide groove. The rotary drum is rotated to align the chip parts and to deliver the chip parts into the discharge passage via the chute groove, the gate hole and guide groove.
摘要:
An electronic device which includes, a couple of first conduction regions which are capable of confining carriers, a second conduction region having a higher energy level than those of the first conduction regions, and a first electrode for impressing a voltage on the first conduction regions, wherein when a voltage is impressed via the first electrode between the couple of first conduction regions, carriers are caused to move due to a tunneling effect from one of the first conduction regions via the second conduction region to the other of the first conduction regions, and when the voltage impressed between the couple of first conduction regions is removed, carriers are confined mainly in the one of the first conduction regions.
摘要:
In a method of forming a pattern in semiconductor device manufacturing process, a thin film consisting of a silicon nitride film is formed on a substrate. Ga ions are implanted by a focussed ion beam into a selected region of the thin film. At this point, a pattern to be formed is defined by the selected region. Subsequently, the thin film is dry etched by CF.sub.4. At this point, the selected region into which the ions are implanted functions as an etching inhibition region.
摘要:
A television (100) includes: a receiving section (202) for receiving additional information which is added to and transmitted along with a broadcast content; a processing section (222) for processing additional information so that a mobile device (120) can obtain information that is specific to unique information which the television (100) has; and a transmitting section (224) for transmitting processed additional information.
摘要:
A switching circuit includes: a transistor having a first electrode, a second electrode and a control electrode; a zener diode; and a capacitor. A connection between the first electrode and the second electrode is capable of temporally switching between a conduction state and a non-conduction state by switching a control voltage of the transistor. The zener diode and the capacitor are coupled in series between the first electrode and the control electrode of the transistor. The first electrode is a drain or a collector.