46results about "Multiple contacts formed in one plate/layer" patented technology

A transmissive key sheet using translucent resin, which is capable of effective illumination while ensuring the thinness of the entire key sheet as well as suppressing a decrease in light transmission, input keys using the transmissive key sheet, and electronic equipment with the input keys. A transmissive key sheet of input keys comprises a first key sheet unit and a second key sheet unit, the opposite side of the first key sheet unit from key tops and the opposite side of the second key sheet unit from pressure applicators being bonded together with a translucent adhesive. The key tops made of translucent resin are molded integral with a translucent resin film having letters on its under surface to provide the first key sheet unit. The pressure applicators made of translucent resin are molded integral with a translucent resin film to provide the second key sheet unit. The light from a light source on a substrate illuminates keys so that the letters printed on the under surface of the translucent resin film become visible form outside. The pressing of each key top presses a corresponding key switch through the pressure applicator, and the key switch is concavely curved to make a contact with an electrode on the substrate. Thus, key input is provided.

A slim-type keyboard includes a first flexible layer, a pressed frame and a circuit board assembly. The first flexible layer includes plural pressed regions. The pressed frame includes plural cantilever strips. The circuit board assembly includes plural dome switches. The plural cantilever strips are covered by the first flexible layer. The pressed regions are aligned with the cantilever strips and the dome switches, respectively. When one of the pressed regions is pressed, the cantilever strip is pushed down to trigger the corresponding dome switch. Each cantilever strip includes a U-shaped groove and a suspension end. The U-shaped groove opens to the suspension end. Consequently, the tactile feel of pressing the cantilever strip is improved.

A thin film switch is disclosed, which comprises: a first thin film, having a first conductor unit mounted on a surface thereof; and a second thin film, having a second conductor unit mounted on a surface thereof facing toward the first thin film; wherein, the first conductor unit is composed of a plurality of first electric conductors, and the second conductor is composed of at least one second electric conductor; and the first conductor unit and the second conductor unit are arranged at positions corresponding to each other while being spaced from each other by a specific interval; the at least one second electric conductor is enabled to engage with one of the plural first electric conductors for constructing an electrical conduction when the thin film switch is subjected to a load for forcing the first and the second thin films to move toward each other.

Disclosed is a dome shaped spring including: a dome shaped spring section in which buckling occurs by pushing, wherein at least a portion of a neutral face of a movable portion when buckling of the dome shaped spring section occurs is an aspherical shape.

Disclosed is a metal dome switch for a keypad capable of maintaining click sensitivity in an optimal state upon a push operation of a key button by forming a large height of an uplift part while maintaining structural strength of the uplift part, and increasing a height of a pressure concentration projection projecting upward from an apex of a dome-shaped metal plate while minimizing deformation in outer appearance and dimension of the metal dome switch, when the pressure concentration projection is press formed through a press forming process such as a bending process or a half-blanking process.

Disclosed is a dome shaped spring including: a dome shaped spring section in which buckling occurs by pushing, wherein at least a portion of a neutral face of a movable portion when buckling of the dome shaped spring section occurs is an aspherical shape.

The invention comprises an intrusion-detection system based on a switch 1 that provides more effective protection by means of an innovative arrangement of three intrusion-detection contacts 16-17-18 on an electronic circuit, connected to two different intrusion-detection electronic circuit and an intrusion-detection switch 1 with a special design that provides three different interconnections between said contacts in response to different intrusion attacks. The special arrangement of the contacts on the electronic board provides protection against different sophisticated attacks even without the participation of the intrusion-detection switch.

The keyboard having a plurality of plate-shaped keys which are connected to actuators stabilizes the keys by all the keys and all the actuators being connected to a bending-elastic but tension-resistant band-like membrane.

The keyboard having a plurality of plate-shaped keys which are connected to actuators stabilizes the keys by all the keys and all the actuators being connected to a bending-elastic but tension-resistant band-like membrane.

The invention discloses a switch using a torsional spring as a terminal. The switch comprises an upper cover, a base, a fixed terminal, a movable terminal and a pressing piece, wherein the base is provided with a guide post; the pressing piece is connected to the guide post sleeved with a return spring; the upper end of the pressing piece protrudes out of the upper cover for pressing; the upper cover is buckled with the base, so that a cavity is formed between the upper cover and the base; the fixed terminal and the movable terminal are arranged in the cavity; one end of the fixed terminal and one end of the movable terminal penetrate through base and are connected with an external circuit; the movable terminal is the torsional spring and is mounted on the end, adjacent to the fixed terminal, of the base; one end of the torsional spring penetrates out of the base for line connection and is fixed to the base; and the other end of the torsional spring serves as an action arm controlled by the pressing piece to contact with the fixed terminal. Compared with the prior art, the torsional spring having good elasticity is adopted as the movable terminal, so that the switch using the torsional spring as the terminal can provide better operation experience. Besides, the torsional spring is comparatively low in manufacturing cost. The switch is simple in structure and long in service lifetime. .