Abstract:
A switch device includes a housing, an operating body accommodated movably in the housing, a stopper to lock the operating body, a switch contact performing electrical connection and disconnection in response to the movement of the operating body, a releaser disposed in the housing, and a retainer spring disposed in the housing. The operating body includes a cam section. The stopper includes an engaging section which is engaged with the cam section upon a movement of the operating body as to lock the operating body. The releaser includes a working section projecting outward from the housing. The retainer spring urges the releaser in a predetermined direction. When the operating body is locked, one of the releaser and the retainer spring presses the stopper to engage the engaging section with the cam section and retain the engaging section at the cam section. While the engaging section is engaged with the cam section and retained with the cam section, an operation on the working section of the releaser causes the releaser to move, and causes one of the releaser and the retainer spring to move in a direction away from the stopper as to cause the engaging section to remove from the cam section. The switch device includes a small number of components with a simpler structure, and has a small size.
Abstract:
A resistive surface pad 10 is provided, including a first upper contact surface 32, a second upper contact surface 34, a first lower contact surface 38 and a second lower contact surface 40. The first upper contact surface 32 and the second upper contact surface 34 are shaped to form a generally arc-shaped upper contact gap 36. The first lower contact surface 38 and the second lower contact surface 40 are shaped to form a generally arc-shaped lower contact gap 42. The second upper contact surface 34 and the second lower contact surface 40 are shaped to form a continuous, generally horizontal, center contact gap 44.
Abstract:
A switch assembly includes a plurality of electrical devices and a plurality of user activated switches. The plurality of electrical devices each include a control terminal. Each of the electrical devices causes a different distinguishable output to be provided when a control signal is asserted on the control terminal of one of the plurality of electrical devices. The plurality of user activated switches include carbon-coated contacts. Each of the user activated switches when asserted provides the control signal to the control terminal of one of the plurality of electrical devices.
Abstract:
A switch having two planes opposing and substantially in parallel to each other and switching between a first electrode and another electrode by pressing down one of the planes. Contact point patterns each made of a conductive material having a specified shape are provided on one of the planes. Stripe electrode patterns in which the first electrode and the other electrode are alternately positioned are provided on the other plane in a region where the contact pattern on the one plane is superimposed when that plane is pressed down.
Abstract:
In the inventive touch-operated see-through coordinate input unit, the contacting wires embedded in the upper and lower substrate sheets in a relative perpendicular disposition are divided into groups each of at least two of the adjacent wires and the wires belonging to the same group are bonded to the same electrode. When the upper sheet is depressed with a finger tip or stylus point at a crossing point of the wires on the upper and lower sheets, electrical contact can be obtained at two points or more between wires so that, different from conventional coordinate input units in which electrical contact is obtained at only a single point by a pushing stroke, the reliability of the input operation can be greatly improved also with decreased fatigue of the operator in continuous working of long time.
Abstract:
There is disclosed an electrical signal input device suitable for use in a microwave oven or other household appliance for introducing a setting into those appliances through a simple one-touch actuation. The input device is of the membrane type which includes an actuator member composed of a generally flat plate having a plurality of elongated actuator sections on a surface thereof and carrying a plurality of first electrodes disposed wholly through an opposite surface thereof and facing against the plurality of the actuator sections, a substrate disposed in conjunction with the actuator member and having a plurality of second electrodes each corresponding to one of the first electrodes. The first and second electrodes are brought into electrical contact when the corresponding one of the actuator sections is depressed and becomes bent. It is sensed as to where the first and second electrodes are in electric contact along the length of the actuator sections.
Abstract:
There is disclosed an electrical signal input device suitable for use in a microwave oven or other household appliance for introducing a setting into those appliances through a simple one-touch actuation. The input device is of the membrane type which includes an actuator member composed of a generally flat plate having a plurality of elongated actuator sections on a surface thereof and carrying a plurality of first electrodes disposed wholly through an opposite surface thereof and facing against the plurality of the actuator sections, a substrate disposed in conjunction with the actuator member and having a plurality of second electrodes each corresponding to one of the first electrode. The first and second electrodes are brought into electrical contact when the corresponding one of the actuator sections is depressed and becomes bent. Discrete values of electrical resistance are sensed as a function of where the first and second electrodes are in electric contact along the length of the actuator sections.
Abstract:
A membrane switch control panel arrangement and a label assembly for labeling same, for providing for in field applied identification of the control panel legend upon assembly of the switch, in which the control panel arrangement is of the keyboard switch type providing for touch sensitive switch actuation, with the control panel arrangement circuit board circuiting, membrane or touch sensitive switch components therefor, and the control panel legend sheet switch location indicia therefor being arranged in superposed modular group form, and columnarily arranged, spaced apart switch actuation and observation sets, which sets are disposed in spaced apart rows and extending crosswise of the panel in a columnar configuration, with the legend sheet being delineated to receive and have adhered thereto individual in field marked labels that are to bear the switch identification indicia of the adjacent switch location indicia row. The label assembly comprises a carrier sheet and an adhesive backed label forming sheet that are both specially segmented to define specially shaped sections cooperation to remain united for application thereto, by using a typewriter or the like, the switch identification indicia involved that becomes known only when the assembly of the switch components and controls has been completed. The individual labels are shaped to be then expeditiously separated from the carrier sheet and centered on the respective legend blank spaces by way of throw-away end tab section arrangement that is part of the label assembly arrangement.
Abstract:
A flexible multilayered membrane switch having electrically conducting contacts comprising Ti.sub.2-x N or Ta.sub.2-x N, to reduce oxidation of the surfaces of the contacts.
Abstract:
A membrane switch assembly wherein the internal pressure is automatically equalized with the external pressure through the use of a self-regulating vent. The vent is defined by a non-linear slit formed in an outer layer of the membrane switch assembly, the slit producing a normally closed valve which is caused to open by a pressure differential between the internal pressure and the external pressure.