Abstract: A rotary electronic component capable of reducing an abrasion and a metal fatigue of a slider and extending a rotation life time compared to the conventional technology. A rotary electronic component is provided with a buffer member between a sliding portion of a slider and a rotor. Thus, the sliding portion is energized toward the annular electrode with a proper elastic force and the sliding portion is held. Because of this, vibration of the sliding portion is suppressed and metal fatigue of the slider can be reduced. Furthermore, since the lubricant is impregnated into the buffer member and a part of the buffer member is in contact with the annular electrode, the lubricant can be applied on the annular electrode. Consequently, the sliding portion slides smoothly and the abrasion of the contact portion can be further reduced. In addition, since the buffer member functions to wipe the surface of the annular electrode, foreign substances such as dust on the annular electrode are collected.

Abstract: In a slip ring 100, differential signal slip rings 70 are formed using a base substrate 30 where an electrode pattern and a relative permittivity are optimized to transmit a signal by using one differential signal slip ring 70 to one differential signal cable 60a. Consequently, a low voltage differential signal of 0.35V adopted in video signals of 4K resolution can be transmitted while the camera is continuously rotated through 360 degrees.

Abstract: A rotary electronic component capable of reducing an abrasion and a metal fatigue of a slider and extending a rotation life time compared to the conventional technology. A rotary electronic component is provided with a buffer member between a sliding portion of a slider and a rotor. Thus, the sliding portion is energized toward the annular electrode with a proper elastic force and the sliding portion is held. Because of this, vibration of the sliding portion is suppressed and metal fatigue of the slider can be reduced. Furthermore, since the lubricant is impregnated into the buffer member and a part of the buffer member is in contact with the annular electrode, the lubricant can be applied on the annular electrode. Consequently, the sliding portion slides smoothly and the abrasion of the contact portion can be further reduced. In addition, since the buffer member functions to wipe the surface of the annular electrode, foreign substances such as dust on the annular electrode are collected.

Abstract: In a slip ring 100, differential signal slip rings 70 are formed using a base substrate 30 where an electrode pattern and a relative permittivity are optimized to transmit a signal by using one differential signal slip ring 70 to one differential signal cable 60a. Consequently, a low voltage differential signal of 0.35V adopted in video signals of 4K resolution can be transmitted while the camera is continuously rotated through 360 degrees.

Abstract: Brushes (20, 21) which come into slidable contact with slip rings (23, 24) having power feeding terminals (51, 53) electrically connected to a power feeding side include extending portions (32, 36) extending in the radial direction of a field core (3). These extending portions (32, 36) are bent in a direction away from a coil bobbin (12). The third bent portions (32c, 36c) located at the ends of the extending portions are electrically connected to the terminal portions (10d) of coil terminals. An outer diameter R1 of a mounting recess portion (3a) which stores a power feeding device (5) of the field core (3) is smaller than an inner diameter R2 of the coil bobbin (12). This makes it possible to position the mounting recess portion (3a) at a distance H from the coil bobbin (12) in the field core (3) in the arrow A direction, thereby reducing the size of the rotating coil type electromagnetic clutch (1) in the arrow A-B direction.

Abstract: A two-phase rotary encoder is provided which includes a substrate for the encoder which is double-faced and has a copper-foil-bonded substrate etched thereon, a first ring-shaped electrode pattern and a second ring-shaped electrode pattern formed concentrically around a center hole on the substrate, a smooth, level ring-shaped comb electrode pattern formed on an outermost periphery of the substrate, wiring patterns which cover the electrode patterns through each of external connecting terminals provided on the substrate, and a common external connecting terminal provided on an edge of the substrate, formed on a surface thereof via the center hole or a through hole. The rotary encoder further includes a resin-molded case, a shaft, a gear-shaped rotor, a click mechanism and a tact switch mechanism.

Abstract: A two-phase rotary encoder is provided which includes a substrate for the encoder which is double-faced and has a copper-foil-bonded substrate etched thereon, a first ring-shaped electrode pattern and a second ring-shaped electrode pattern formed concentrically around a center hole on the substrate, a smooth, level ring-shaped comb electrode pattern formed on an outermost periphery of the substrate, wiring patterns which cover the electrode patterns through each of external connecting terminals provided on the substrate, and a common external connecting terminal provided on an edge of the substrate, formed on a surface thereof via the center hole or a through hole. The rotary encoder further includes a resin-molded case, a shaft, a gear-shaped rotor, a click mechanism and a tact switch mechanism.

Abstract: A two-phase rotary encoder is provided which includes a substrate for the encoder which is double-faced and has a copper-foil-bonded substrate etched thereon, a first ring-shaped electrode pattern and a second ring-shaped electrode pattern formed concentrically around a center hole on the substrate, a smooth, level ring-shaped comb electrode pattern formed on an outermost periphery of the substrate, wiring patterns which cover the electrode patterns through each of external connecting terminals provided on the substrate, and a common external connecting terminal provided on an edge of the substrate, formed on a surface thereof via the center hole or a through hole. The rotary encoder further includes a resin-molded case, a shaft, a gear-shaped rotor, a click mechanism and a tact switch mechanism.

Abstract: A two-phase rotary encoder is provided which includes a substrate for the encoder which is double-faced and has a copper-foil-bonded substrate etched thereon, a first ring-shaped electrode pattern and a second ring-shaped electrode pattern formed concentrically around a center hole on the substrate, a smooth, level ring-shaped comb electrode pattern formed on an outermost periphery of the substrate, wiring patterns which cover the electrode patterns through each of external connecting terminals provided on the substrate, and a common external connecting terminal provided on an edge of the substrate, formed on a surface thereof via the center hole or a through hole. The rotary encoder further includes a resin-molded case, a shaft, a gear-shaped rotor, a click mechanism and a tact switch mechanism.

Abstract: A rotary variable resistor with switch having a switch mechanism, in particular, a rotary variable resistor with switch corresponding to an ultrathin rotary variable resistor. Such a rotary variable resistor having a switch mechanism has dimensions, especially thickness, which are only slightly larger than that of a conventional ultrathin rotary variable resistor. Moreover, such a rotary variable resistor is easy to assembly due to the small number of parts, is reliable, and generates a fairly loud and easily recognizable clicking sound each time the switch is turned on or off, which can be both easily felt and heard by the user.

Abstract: The present invention provides a sliding type variable resistor in which the shaking of a knob portion is prevented, and in which the slider is able to slide smoothly. A sliding type variable resistor is provided having a structure comprising a resin substrate having a carbon film resistor printed on the surface in a straight line and lead terminals for external lines, a slider having a main body portion provided with a sliding shoe which slides in abutment against the carbon film resistor and a knob portion, and a frame body which holds the slider main body portion and the resin substrate inside and in which only the knob portion of the slider protrudes outside. A guide rail is provided in parallel to the sliding direction of the slider on the side surface of the frame body and a depressed part which is to be engaged with the above-mentioned guide rail is provided on the side surface of the slider main body portion.

Abstract: A chromium additive of the formula: Cr.sub.x C.sub.y O.sub.z where 0.04.ltoreq.y.ltoreq.0.35, and 0.03.ltoreq.z.ltoreq.0.30 for x=1, said additive having an X ray diffraction peak at d=3.32 .ANG. (2.theta.=26.8.degree.).

Abstract: A sliding resistor comprises a case bored with a groove in which a slider is slidably received, the slider having a sliding element formed of a leaf spring provided on the bottom plane for abutment against resistance elements mounted on a base plate. The case and slider are both molded, for example, from plastic material. The inner wall of the groove of the case has a cross section formed of a curved plane including a fractional circular portion or a polygonal plane except for the rectangular plane. The peripheral surface of the slider contacting with the inner wall of the groove has substantially the same form as that of the cross section of the inner wall of the groove of the case.