Abstract:
A backlight module is used in a lighting keyboard. The backlight module includes a light guiding plate and a masking. The masking is disposed on the light guiding plate. The masking includes a support layer, a cover layer and a reflective layer. The support layer includes a first surface and a second surface opposite to the first surface. The cover layer is disposed on the first surface. The cover layer includes a first opening. The reflective layer is disposed on the second surface and faces the light guiding plate for reflecting light emitted from the light guiding plate, so as to enhance lighting efficiency on the first opening. The reflective layer includes a second opening. A shape and a position of the second opening are respectively corresponding to a shape and a position of the first opening.
Abstract:
Disclosed is a switch apparatus of a vehicle that includes a switch body that is connected to a connector of an electronic apparatus and includes a relay board disposed in an inner space thereof. The apparatus further includes a coupling portion disposed on a bottom of the switch body, formed by a conductor, and coupled to a fixation bracket. Additionally, an earth member includes a base formed by the conductor and is disposed in a lower part of the inner space of the switch body, and coupled on the top of the coupling portion and a clamping bar respectively extended upward at both sides of the base and coupled with an earth terminal formed on the bottom of the relay board.
Abstract:
A seat has a seat frame and a seat cushion supported by the seat frame. The seat cushion has an upper surface that supports a user and a lower surface defining a cavity. The seat cushion moves between an at rest condition in which no operator is seated on the seat, and a deflected condition in which the seat cushion is deflected with respect to the frame in response to an operator seated on the seat. A switch is mounted to the frame and opens and closes an electrical circuit in response to an actuating force. A switch actuator is mounted to the seat cushion lower surface in the cavity and moves between a non-actuating position when the seat is at rest and an actuating position when the seat is deflected. The switch actuator delivers the actuating force as the switch actuator is moved toward the actuating position.
Abstract:
Magnetic attractive force of a magnet exerted on a movable contact in a sealing case through yokes changes as a result of movement of a magnetic shunt element induced by movement of a movable element located outside the sealing case. As a result, the movable contact can be brought into or out of contact with a stationary contact without involvement of entry of the movable element into the sealing case.
Abstract:
A push light having a housing consisting of a housing cover and housing base, an internal illuminating means, four feet members, and a snap switch connected to one of feet having a spring member to resiliently support the housing is provided. The housing may be various shapes and the housing cover may be colored and transparent or translucent to emit soft and beautiful light through the housing cover. The housing base includes four holes to accept four feet, at least one of which has a spring and a shaft. The snap switch is installed on the housing base and on the upper portion of one of feet positioned beneath the housing so that the lamp may be turned on or off when the housing cover is tapped by a user, causing the shaft hit the button of the snap switch and operate the switch.
Abstract:
A position programmable adjustable chair particularly useful in dental and medical procedures. The chair is hydraulically powered and controlled by microprocessors which enable chair seat and back positions to be memorized and automatically captured upon command by use of a single control button. The control button may be located either on the chair or on a footswitch. A sealed omnidirectionally operable footswitch is provided which is particularly suited for use in combination with the chair.
Abstract:
Two embodiments of improved brake light switches that are integrated into the brake pedal and are actuated by the application of pressure to the pedal. In one embodiment, the pedal pad is movable relative to the pedal and this relative movement effects closure of the switch.
Abstract:
An accelerator pedal switch and solid state electrical control circuit is adapted to be attached to a conventional vehicle for operating the vehicle brake light for a given time period in response to lifting of an operator''s foot from the accelerator pedal. If the brakes are applied the normal brake light switch overrides the accelerator switch to maintain the brake light energized. If the brake pedal is not operated, the brake light will extinguish after the given period so that an early warning system is provided for cars following the vehicle.