摘要:
An adhesive layer (27) is formed on a rear surface of a cover sheet (24). A dome-shaped contact spring (23) has a vertex portion adhered to a rear surface of the cover sheet (24) by the adhesive layer (27). A printed circuit board (22) includes a fixed contact (26a) switched to an electrically conducted state or an insulated state by the contact spring (23), and an annular contact section (26b). A light guide sheet (25) is arranged on a front surface side of the cover sheet (24). An annular groove (28) (recess) of a circular ring shape having a constant width is formed at a position corresponding to the vertex portion of the contact spring (23) at the front surface of the light guide sheet (25) so as not to penetrate toward the rear surface side.
摘要:
A sealed dome switch assembly is provided to allow air to flow between the interior and the exterior of the dome switch during the collapse and recovery of the resilient dome shell (330). The sealed dome switch assembly comprises at least one vent (340) leading between the interior space (320) and the exterior space (322) of the sealed dome switch, wherein the vent (340) is covered by a membrane (344) that is permeable to air and resilient to liquid (e.g. water) and small particles (e.g. dirt). A vent may also be used to network the interiors of a plurality of sealed dome switches to at least one exterior entranceway that is covered by the membrane.
摘要:
Regarding a key sheet having a plurality of key tops provided at a key base made of a transparent or translucent resin, and a key unit using the key sheet, in order to make the key sheet thinner and thereby make a device using the key sheet, e.g., a cellular phone, thinner, the key sheet comprises a key base made of a transparent or translucent resin; a plurality of key tops provided on said key base; and pressing elements or a pressing element sheet having pressing elements provided at a bottom surface thereof, provided at a bottom surface of said key base, wherein said key base is molded, into a sheet form, of a thermoplastic resin which is solid at a room temperature and obtains adhesive force only in a physical change of hot melting and cooling solidification.
摘要:
The present invention is to provide a push-button switch member which is thinner, superior in tactile feeling by clicking with high durability and produced with low cost, and a method of manufacturing the same with a low manufacturing cost. A push-button switch member 1 comprises: at least one key top 3; a metal sheet 5 including a hole 12 corresponding to at least a position where the key top 3 is placed; an elastic sheet 16 being placed on one side of the metal sheet where the key top 3 is placed or the other side opposing to the one side, inserted into the hole 12 and contacted with the key top 3 in the position of the hole 12. The elastic sheet 16 comprises a structure where a urethane film 4 or a polycarbonate film and a silicone rubber 6 are laminated toward the direction of the thickness of the metal sheet 5.
摘要:
A luminous switch using an inorganic EL material is provided with a plurality of switch sections so as to reduce acoustic noise. The switch sections are provided with a plurality of protruding parts (112) and a plurality of supporting sections (113) formed on a surface of a structure (101); an elastic deformable conductor (124) arranged to have a convex surface opposed the protruding parts (112); a wiring sheet (102A) for covering the conductor (124); a luminous sheet (160) for covering the wiring sheet (102A); and a plurality of switch buttons (125) arranged above the luminous sheet (160). The luminous switch has a structure in which at least two supporting sections (113) are arranged around the protruding parts (112), and a space (111) is formed between the protruding parts (112) and a switch sheet (102). The conductor (124) is accommodated in the space (111). In a case main body (101), an electronic component (103) is mounted and a substrate (104) provided with wiring is arranged. The switch buttons (125) are fixed on a key sheet (129). A top plate (106) is arranged on the key sheet (129) by surrounding the switch buttons (125). The top plate (106) is arranged to cover lower components.
摘要:
A switch element for surface mounting onto a printed circuit board which has a bearer element (2) and a contact element (1). Both the bearer element and the contact element are formed from an electrically conductive material and the contact element being formed from a resilient material. The bearer element and the contact element can be of an integral construction or are separate components assembled together. By this construction the bearer element comprises a peripheral retainer for the contact element. In one arrangement the bearer element has an inwardly facing C-shaped cross sectional shape to provide a recess to act as a peripheral retainer for the contact element by receiving at least a portion of the rim of the contact element in the C-shaped member recess.
摘要:
An ornamented sheet (2) in which at least a metal thin-film layer (7) is formed on the back of a semitransparent base sheet (3) having a visible light transmittance of 80-93% and a haze of 5-50% is integrated with transparent resin members (11) to serve as button portions (19).
摘要:
A button structure for displaying a multi-layered appearance includes a first flexible body, a film layer, a first color layer, a second flexible body, a second color layer, and a third color layer. The film layer is disposed on a top surface of the first flexible body. The first color layer is disposed between the first flexible body and the film layer. The second flexible body is disposed on a top surface of the film layer. The second color layer is disposed between the second flexible body and the film layer. The third color layer is disposed on a top surface of the second flexible body. Hence, the above-mentioned layers are integratedly formed together to display a multi-layered appearance.