Abstract: A flow rate control valve includes a bobbin and a plunger. On an inner circumferential surface of the bobbin, multiple protruding regions that extend in a direction parallel in an axial direction to the plunger, and a plurality of recessed grooves that form flow paths for a fluid when valve is open are provided side by side alternatingly in a circumferential direction. The multiple recessed grooves include a first recessed groove, second recessed groove, and third recessed groove that are arranged side by side sequentially in the circumferential direction. An interval in the circumferential direction between the first recessed groove and second recessed groove and an interval in the circumferential direction between the second recessed groove and third recessed groove are the same. Surfaces of the multiple protruding regions formed on the inner circumferential surface of the bobbin can be arranged at positions closer to those of one perfect circle.

Abstract: A flow rate control valve includes a bobbin and a plunger. On an inner circumferential surface of the bobbin, multiple protruding regions that extend in a direction parallel in an axial direction to the plunger, and a plurality of recessed grooves that form flow paths for a fluid when valve is open are provided side by side alternatingly in a circumferential direction. The multiple recessed grooves include a first recessed groove, second recessed groove, and third recessed groove that are arranged side by side sequentially in the circumferential direction. An interval in the circumferential direction between the first recessed groove and second recessed groove and an interval in the circumferential direction between the second recessed groove and third recessed groove are the same. Surfaces of the multiple protruding regions formed on the inner circumferential surface of the bobbin can be arranged at positions closer to those of one perfect circle.

Abstract: According to a solenoid air valve, a flange portion of a moving core and a flange portion area of a bobbin implement a stop area defining a distance of travel of the moving core in a direction away from a fixed core. An end portion of a shaft portion of the moving core can project outward through an opening of a frame cover, so that a gap between a surface of the frame cover facing the shaft portion and a side surface of the shaft portion (distance: L2) can be minimized. Consequently, a solenoid air valve having a structure allowing improvement in magnetic efficiency by making smaller the gap between the frame and the moving core is provided.

Abstract: A moving core of a solenoid air valve has a flange portion arranged on a side of a fixed core, provided in a radially projecting manner and having a first diameter, and a shaft portion having a second diameter smaller than the first diameter. Therefore, a sufficient area of magnetic pole is ensured around a rubber packing in the flange portion of the moving core. Consequently, the solenoid air valve structured such that an area of magnetic pole is sufficiently ensured even if the moving core is made thinner in order to ensure a volume of a coil body in reducing the solenoid air valve in size can be provided.

Abstract: A moving core of a solenoid air valve has a flange portion arranged on a side of a fixed core, provided in a radially projecting manner and having a first diameter, and a shaft portion having a second diameter smaller than the first diameter. Therefore, a sufficient area of magnetic pole is ensured around a rubber packing in the flange portion of the moving core. Consequently, the solenoid air valve structured such that an area of magnetic pole is sufficiently ensured even if the moving core is made thinner in order to ensure a volume of a coil body in reducing the solenoid air valve in size can be provided.

Abstract: According to a solenoid air valve, a flange portion of a moving core and a flange portion area of a bobbin implement a stop area defining a distance of travel of the moving core in a direction away from a fixed core. An end portion of a shaft portion of the moving core can project outward through an opening of a frame cover, so that a gap between a surface of the frame cover facing the shaft portion and a side surface of the shaft portion (distance: L2) can be minimized. Consequently, a solenoid air valve having a structure allowing improvement in magnetic efficiency by making smaller the gap between the frame and the moving core is provided.

Abstract: A flow control valve utilizing at least one permanent magnet and at least one magnetic coil, wherein one or more permanent magnets or magnetic coils are used to move a movable member in towards and/or away from an inflow port so as to control the flow through the port. When multiple permanent magnets are used, at least one yoke, which protrudes beyond the edges of the magnets, is place between each pair of magnets. A fixed shaft that passes through a hollow portion of the movable member is used to control the movement of the movable member, and an air vent is present near the end of the movable member that is closest to the inflow port such that the hollow space of the movable member does not form a vacuum.

Abstract: A flow control valve, comprising a frame case (2) having a gas inlet (1a) and a gas outlet (1b), an operating shaft (4) disposed so as to be allowed to move close to and away from the inlet (1a), and an orifice packing (3) installed at the tip of the operating shaft and opening and closing the inlet (1a), wherein two permanent magnets (5a, 5b) are installed on the operating shaft (4) through a yoke (22a) in the state where the same electrodes thereof are opposed to each other and three electromagnetic coils (6a, 6b, 6c) are disposed on the outside of the permanent magnets (5a, 5b) in the state where the winding directions of the coils positioned adjacent to each other are reverse to each other and, when a current flows through the electromagnetic coils (6a, 6b, 6c), electromagnetic forces generated by the electromagnetic coils (6a, 6b, 6c) and the permanent magnets (5a, 5b) are combined with each other, the operating shaft (4) is moved leftward by the combination thrust as shown in the figure so that the orif

Abstract: An acceleration sensor for a pedometer has a base member which bends along one plane, a piezoelectric element which is set on and bends with this base member, and a weight member at one end portion of the base member. The weight member causes the base member and the piezoelectric element to be deformed when it is accelerated in whatever direction. A pedometer includes such an acceleration sensor and outputs from the acceleration sensor are processed by a control circuit and the number of steps taken by the user or the distance walked by the user can be displayed on a display device.

Abstract: A flow control valve has a housing with a gas outlet and contains a mobile shaft which can be moved towards or away from this gas outlet. A member for closing and opening the gas outlet is attached to a front end of the mobile shaft. At least a portion of the front surface of this member is formed as a curved surface such that when the mobile shaft is moved away from the gas outlet from the position where the gas outlet is completely closed by the closing member, a gap is formed more gradually between the gas outlet and the closing member such that a more accurate continuous control of the flow rate through the valve can be carried out.

Abstract: Textile treating compositions, comprising at least one metal- or silicon-containing organic compound selected from the group consisting of: 1) an organic titanate containing a phosphorus, sulphur or nitrogen atom, 2) a phosphorodithioate metal salt, 3) a dithiocarbamate metal salt, 4) an aluminum alcoholate, an aluminium ester or an aluminum chelate, 5) a tin-containing carboxylate salt or carboxylate ester and 6) a mercapto group-containing silane compound, are effective for preventing yarn breaking and for improving operation efficiency even at severe conditions and are praticularly useful for treating tire cord.

Abstract: An electronic clinical thermometer comprising a compact-like case, a cover pivotally connected to a side edge of the case by means of hinge members; a main body of the electronic thermometer fixedly secured to an inner bottom surface of the case and having a display field and a manipulating switch disposed on the top surface, a cord led outwardly from the main body through a peripheral wall thereof, a temperature sensing probe provided at the free end of the cord, and retaining means for releasably securing the temperature sensing probe within the case. The thermometer is suited for ladies' use is disclosed. A window can be formed in the cover to allow the display to be viewed therethrough even in the cover-closed state. A notch can be formed in a side wall of the case for guiding the cord.

Abstract: An electronic thermometer comprises a casing, an electric cord capable of being accommodated within the casing so as to be pulled outwardly as desired, a temperature sensing probe mounted at a free end of the cord, and a main body of the thermometer mounted within the casing rotatably with a display field being exposed through the casing, wherein a base end portion of the cord extends outwardly from the peripheral portion of the main body in such a manner in which the main body serves also as a reel for winding the cord therearound. The case is configured in a thin box-like structure and having a probe holding portion formed on one side thereof for removably storing the probe. Reliable electric connection and improved portability of the thermometer is realized.