Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A rotary switch includes a rotor that is insert molded so upper and lower contact pieces have a predetermined number of contact regions with a predetermined angular width in each of a plurality of annular zones defined by a plurality of concentric circles and are stacked in a disk part. The contact pieces are exposed in two surfaces of the disk part, an upper contactor holder and a lower contactor holder are placed to cover a lower half and an upper half of the disk part of the rotor. A plurality of elastic contacts are brought into elastic contact with lower and upper side surfaces of the disk part in a plurality of annular zones, and a rotating operation shaft is inserted through the rotor, the lower contactor holder, and the upper contactor holder, and can rotate the rotor.

Abstract: A sensing apparatus according to the present invention includes a movable part rotatably supported by a base, a first input unit that is part or all of a first member formed integrally with or secured to the movable part, a second input unit that is part or all of a second member formed integrally with or secured to the movable part, a turning member turning together with the movable part, and a sensing element that is secured to a reference position of the base, senses a direction of the turning member relative to the reference position, and outputs a signal determined on the basis of the detected direction to identify a first linear displacement and a second linear displacement.

Abstract: A rotary switch is provided having high flexibility in design depending on required operations. A rotor (70) is insert molded so that upper and lower contact pieces (7C1 and 7C2) each having a predetermined number of contact regions each having a predetermined angular width in each of a plurality of annular zones defined by a plurality of concentric circles are stacked in a disk part (72), and the contact pieces are exposed in one surface and the other surface of the disk part, an upper contactor holder (80) and a lower contactor holder (60) are placed to cover a lower half and an upper half of the disk part of the rotor, and have a plurality of elastic contacts respectively brought into elastic contact with lower and upper side surfaces of the disk part in a plurality of annular zones, and a rotating operation shaft (10) is inserted through the rotor, the lower contactor holder, and the upper contactor holder, and can rotate the rotor.

Abstract: A click mechanism for an electric part comprises a spring 50 made of a plate material and disposed on a rotatable plate 40 that rotates integrally with a rotationally-manipulated shaft of an electric part, a click piece 60 disposed on the outer perimeter of the rotatable plate 40 so as to retractably protrude from the outer perimeter, and projections and depressions 25 formed on the inner perimeter of a housing 22 for the rotatable plate 40 to be arranged in the circumferential direction of the inner perimeter. The click piece 60 is cylindrical and biased by the spring 50 to be in resilient contact with the projections and depressions 25 at the perimeter thereof. The click mechanism can produce a fine and clear click feel, has high durability, and can be reduced in size.

Abstract: A sensing apparatus according to the present invention includes a movable part rotatably supported by a base, a first input unit that is part or all of a first member formed integrally with or secured to the movable part, a second input unit that is part or all of a second member formed integrally with or secured to the movable part, a turning member turning together with the movable part, and a sensing element that is secured to a reference position of the base, senses a direction of the turning member relative to the reference position, and outputs a signal determined on the basis of the detected direction to identify a first linear displacement and a second linear displacement.

Abstract: A contact type rotation sensor includes a contact brush having a contact and an electrical resistor disposed for sliding motion relative to the contact. The contact brush provided at a side face of an arm portion with a projecting piece has asymmetric shape and asymmetric weight distribution about its longitudinal axis, and is large in moment of inertia in a direction of torsion. During relative sliding motion, suppressed torsional vibration of the contact occurs not only at natural frequencies but also at dispersed frequencies other than natural frequencies, reducing the sound pressure of sliding sound. A stable contact state is ensured between the contact and the electrical resistor, resulting in improved durability.

Abstract: A contact type rotation sensor includes a contact brush having a contact and an electrical resistor disposed for sliding motion relative to the contact. The contact brush provided at a side face of an arm portion with a projecting piece has asymmetric shape and asymmetric weight distribution about its longitudinal axis, and is large in moment of inertia in a direction of torsion. During relative sliding motion, suppressed torsional vibration of the contact occurs not only at natural frequencies but also at dispersed frequencies other than natural frequencies, reducing the sound pressure of sliding sound. A stable contact state is ensured between the contact and the electrical resistor, resulting in improved durability.

Abstract: A socket for an IC used in electrically connecting the IC to a test device for testing electrical properties of the IC. The socket for an IC includes a printed circuit board on one surface of which a plurality of contact electrodes are arranged at the same pitch as an arraying pitch of external electrodes for the IC and on the opposite surface of which are arranged a plurality of terminal electrodes connected to the contact electrodes, an anisotropic electrically conductive adhesive arranged on the contact electrodes of the printed circuit board, a base block arranged on the one surface of the printed circuit board and having an opening for setting the IC, with the opening facing the anisotropic electrically conductive adhesive. The socket for an IC also includes a plurality of coil-shaped contacts arranged in the opening, one ends of which are positioned above the contact electrodes via the anisotropic electrically conductive adhesive and the other ends of which are protruded from the opening.

Abstract: A planar heating device for a mirror. The device comprises a glass film 18 formed on a metallic chrome film 16b on the back side of the mirror; a group of electrodes formed on the glass film, the group including main electrodes 3, 4, power terminal lead electrodes 5, 6 and sub-electrodes 7, 8; a resistance film 9 formed so as to cover the sub-electrodes; an electrically insulating film 20 formed on the resistance film 9 and the group of electrodes; and power terminals 11, 12 or power lead lines soldered to the respective power terminal lead electrodes 5, 6. The glass film 18 is formed directly on the back side of the mirror by screen printing or a spray process. The group of electrodes and the resistance film 9 are formed directly on the back side of the mirror by screen printing. Silver electrically conductive ink having inorganic glass as binder is used as a material for the group of electrodes.

Abstract: Main electrodes 3, 4 are formed on the inner surface of a flexible insulating sheet 2 along opposed edges thereof, and junction electrode sections 3a, 4a are formed on the main electrodes at their central portions. Comb-toothed sub-electrodes 7, 8 extend from the main electrodes 3, 4 into interdigitated relation, and a layer of electrically resistive material 9 is formed over the main and sub-electrodes. Electrically conductive paths 5, 6 are formed on the inner surface of a terminal mounting substrate to which terminals are attached, and one ends of the conductive paths 5, 6 are connected with the corresponding junction electrode sections 3a, 4a while the other ends thereof are connected with the terminals to be connected to a power supply. The terminal mounting substrate with the terminals is bonded to the insulating sheet.

Abstract: A recirculating type cleaner having a dust collecting port including a suction port and an outlet in which downstream flow of a fan is recirculated, discharged through said outlet, and drawn into said suction port. Said dust collecting port means has an outer peripheral wall defining an outer boundary of said suction port. The outlet is located within the region of the suction port and has an orifice or opening so constricted as to discharge the downstream flow in the form of a jet and so oriented as to discharge the jet at an angle in the range of 90.degree..+-.30.degree. relative to a surface to be cleaned. The end surface of the boundary wall between the outlet and the suction port and/or the flange or a outer peripheral wall are formed with a plurality of minute channels.

Abstract: A resistance element causing less sliding noise for use in wound-type variable resistors and a method of making the same are disclosed. A resistance element obtained by winding a metallic resistance wire on a core is subjected to etching treatment. With this etching treatment, the metallic oxides, chlorides and sulfides considered acting as insulators, and organic molecules, adsorbed gases and other contamination forming the surface layer of the resistance wire are dissolved and removed. Furthermore, by immersing the etched resistance element in an ammonia solution, etc., the copper precipitated on the surface of the resistance wire is dissolved.

Abstract: A planar resistance heating element with positive temperature coefficient characteristics includes a resistive body layer formed of a crystalline resin containing electrically conductive particles and disposed between at least a pair of electrodes on an insulating substrate. A phenolic resin layer or a denatured phenolic resin layer with an elastomer resin added is disposed on the resistive body layer in covering relation to the entire surface thereof. An insulating protective film of resin may be disposed on the covering layer with an adhesive layer interposed therebetween, and an adhesive layer may be disposed on an outer surface of the insulating protective film for attachment to an object to be heated.