Abstract: Bosses 7a and 7b are formed on spacers 5a and 5b provided between a top rubber 4 and a top hoop 3. Guide holes 8a and 8b for respectively guiding the movements of the bosses 7a and 7b in accordance with a pounding operation on the top rubber 4 are formed in a flat plate portion 3a of the top hoop 3. Bushings 10, made of a high wear-resistant resin, are mounted respectively in the guide holes 8a and 8b. By doing so, switch-mounting portions 9a and 9b, switch drive portions 6a and 6b and so on, provided at the top hoop 3 and the spacers 5a and 5b, are formed with high positional precision.

Abstract: A water resistant actuating mechanism for a plunger type limit switch using a bowed spring to activate the plunger of a plunger type switch mounted within an actuating mechanism housing includes a flexible seal for covering the hole or opening in through which the bowed spring extends. The seal may be dome shaped and cover a circular opening. A glide or shoe is positioned on or connected to each end of the spring and are held in place between an upper wall of the housing and a backing sheet connected to the housing. The glide reduces the amount of deflection of the bowed spring required to activate the plunger type switch such that the additional thickness added by the flexible seal does not increase the overall required thickness of the actuating mechanism.

Abstract: An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element (2) for each direction of movement of the lifting device arranged in a switch housing (1), wherein each switch element (2) includes a pressure activation mechanism (5), a first electrical micro-key button (4), and at least one additional control or switch element, especially another electrical micro-key button (6), and the pressure activation mechanism (5) is arranged in front of the micro-key button (4) and the additional control or switch element and these can be activated in succession by means of such structure.

Abstract: Double-pass pushbutton, able to act successively on one or both independent microswitches (M1), (M2), where the body shell and the pushbutton have a leaktight and flexible cap mounted between them, which hermetically seals the joint without interfering with the guided axial movement of the pushbutton, with respect to the body to be activated, or stopping the operator's action; it has two contact stops at different heights, for their successive contact with the relative rnicroswitches when moved linearly; and there are means between the body shell and the pushbutton for the successive positioning of the pushbutton. The pushbutton is especially useful in control pushbutton panels.

Abstract: A push switch includes a case made of insulating resin including a plate-like portion shaped substantially like a plate, a first fixed contact exposed at a first surface of the plate-like portion of the case, a second fixed contact exposed at the first surface of the plate-like portion of the case, and a movable contact which electrically connects and disconnects the first fixed contact to the second fixed contact. A first metal member including the first fixed contact further includes a first terminal exposed outside the case, and a first middle portion exposed at a second surface of the plate-like portion of the case, the first middle portion connecting the first fixed contact to the first terminal. A second metal member including the second fixed contact further includes a second terminal exposed outside the case, and a second middle portion for connecting the second fixed contact to the second terminal.

Abstract: A vehicle switch is capable of properly switching on/off electrical connection between fixed contacts. The fixed contacts of the switch are oppositely disposed on a substrate so as to be parallel to a moving direction of a moveable piece. A barrier constituted by a dent or a projection is disposed between the fixed contacts to increase the creeping distance between the fixed contacts. With such a simple structure, the vehicle switch can suppress degradation of insulation characteristics between the fixed contacts, whereby the electrical connections between the fixed contacts are properly established or cut-off.

Abstract: A hand-held electronic device with a keyboard optimized for use with the thumbs is provided. The handheld device includes a keyboard, a display, and a processor. The keyboard is horizontally positioned symmetrically between a left edge and a right edge of a face of the hand-held messaging device. The keyboard has a plurality of keys arranged in a plurality of rows across the face, wherein each row of keys is arranged in a concave pattern. The display is vertically positioned between the keyboard and a top edge of the face and is horizontally positioned symmetrically between the left edge and the right edge of the face. The processor is coupled to the keyboard and the display, and controls the operation of the hand-held messaging device.

Abstract: An electrical switch has a housing having an opening, fixed contacts located in the housing, a switching member supported in the housing for movement, and at least one moving contact movable by the switching member for movement to come into contact with and out of contact from the fixed contacts. An actuator is disposed in the opening for movement to actuate the switching member and in turn the moving contact. A gap is formed between the actuator and the opening that surrounds the actuator. A rubber deformable seal is connected across the opening and the actuator to seal off the gap, thereby avoiding entrance of foreign matter through the gap into the housing.

Abstract: The present invention provides a rolling seal that is disposed between the handle and the housing. The subminiature circuit breaker has a housing and a handle assembly as noted above. The housing has a handle opening bushing that includes at least one through opening. The handle assembly has a handle member disposed in the handle opening which is structured to move between a first position and a second position. The handle member further has an attachment ring. The rolling seal includes a flexible tubular member having a first end and a second end, and a lip. Said lip extends inwardly toward the axis of the tubular member. The lip is disposed at the first end of the tubular member and the second end is disposed at the second end of the tubular member. The lip is structured to engage the handle opening at least one through opening and the second end is structured to engage the attachment ring.

Abstract: An ID code is wirelessly sent to a device, such as a keyless-entry system or a keyless-starter system mounted on an automobile, from a portable transmitter. Electronic components including tact switches for transmitting signals are all contained in a resin case composed of a front case and a rear case connected to each other. Front openings are formed on the font case, and the tact switches are disposed in the resin case so that they face the respective front openings. The front openings are covered with a front film formed integrally with the front case. Function displays corresponding to the respective tact switches are printed on the rear surface of the front film. The tact switches are pushed from the front surface of the front film.

Abstract: A switch (1) comprises a elastomeric body (2) which includes a recess (3) formed therein for receiving a printed circuit board (4). The external periphery of the PCB (4) engages in an internal groove (6) so as to form a closed switch cavity (7) between the PCB an one end of the body, said one end of the body including a resiliently deformable portion (11) which is movable to bring a movable contact (13) into engagement with fixed contact (8,9) carried on the PCB (4) so as to establish an electrical connection therebetween. The body (2) includes an external groove (42) to mount the switch on a panel (40), and a seal is provided in the external groove (42) to prevent the ingress of water and the like to the recess (3) of the body (2).

Abstract: Method and apparatus for keypads with push buttons and in particular to integrating different parts of a keypad to provide better and more secure functioning. The keypad includes a first component including a cover portion and a key portion forming together a single structural entity, the structural entity allowing the key portion to move within a limited range in relation to the cover portion; and a substantially soft second component attached to the first component for covering space between the cover portion and the key portion of the first component and making composed compound construction substantially tight, still allowing the limited movement of the key portion of the first component.

Abstract: A waterproof pushbutton consists of a body, a button housing and a cover with a hollow shaft. The button housing has a retractable sleeve with an annular shoulder, and the body has an outer lip and an inner lip. A seal device comprises a compression fitting, and an elastic seal with an outer and an inner flange. The zeal is securely mounted on the annular shoulder of the retractable sleeve, and the hollow shaft presses down on the inner flange of the elastic seal. The compression fitting is securely attached to the outer flange of the elastic seal to mount the elastic seal between the outer and inner lip of the body.

Abstract: A switch (1) comprising an outer housing (3) and an inner component (5); switch means (13) operable to provide a signal upon depression of said outer housing (3) resilient biasing means (29) located between the inner component and the outer housing to provide a force which bias the outer housing from the inner component; and means (9, 17) for varying the spacing between the inner component and the outer housing and hence the biasing force provided by said resilient biasing means.

Abstract: A keyboard with liquid-draining function, at least including: keys, elastic body layer, circuit board layer, bottom board and sealing layer; wherein the bottom board is installed with at least a liquid-draining hole, with the dividing mechanism being installed between the circuit board layer and the bottom board to form a liquid-draining space. The liquid-draining space and the liquid-draining hole are connected for the purpose of draining liquid that is accidentally poured into the keyboard, so that liquid flowing down through the keys can be drained away swiftly via the liquid-draining space and drained out of the keyboard through the liquid-draining hole, thus preventing liquid from accumulating in the keyboard, and maintaining the normal operation of the keyboard.

Abstract: A switch actuator includes a separate cap and connector which are assembled through an aperture formed in a resilient membrane which provides a switch cover. The resilient membrane has an exposed exterior surface and an opposite interior surface. The membrane is mountable, by gluing or the like of the interior surface to a switch plate having one or more pressure actuated electrical switches mounted thereto. The switch cover has one or more button-receiving apertures. A portion of the membrane immediately surrounding the button receiving apertures may be outwardly deformed as a circular frusto-conical dome.

Abstract: A switch housing assembly which uses an internal pressure bracket to simultaneously provide pressure against multiple switches located in multiple locations within the switch housing assembly. The pressure bracket creates a fluid seal between the flexible switch buttons and the switch housing by pressing the switches against the switch buttons which in turn are pressed directly against the inner surface of the switch body. Multiple switches are simultaneously secured to the switch housing by an internal bracket which simultaneously provides pressure against the backs of multiple switches. An optional pressure ring focuses pressure from the periphery of the switch assembly to the outer peripheral ring of the flexible switch button. The bracket assembly is preferably secured to the switch housing by a single removable screw to allow disassembly when needed.

Abstract: The invention relates to an outer door handle. According to the invention, the press element (15) integrated in the bow-type handle is configured as a multiple-component insert (20) with two components, namely a hard component (21) and a soft component (22). The multiple-component insert is shaped like a cap. The center portion (23) of the cap bottom consists of a plate-shaped hard component (21) on the exterior. The remaining area of the cap, namely especially the contour part (35) towards the plate and the cap coat exclusively consist of the soft component (22). The cap coat is inserted in a force fit in a recess (13) of the bow-type handle by way of contacting surfaces and shoulders (41) and is secured therein by snap-in elements (43).

Abstract: A switch housing assembly which uses an internal pressure bracket to simultaneously provide pressure against multiple switches located in multiple locations within the switch housing assembly. The pressure bracket creates a fluid seal between the flexible switch buttons and the switch housing by pressing the switches against the switch buttons which in turn are pressed directly against the inner surface of the switch body. Multiple switches are simultaneously secured to the switch housing by an internal bracket which simultaneously provides pressure against the backs of multiple switches. An optional pressure ring focuses pressure from the periphery of the switch assembly to the outer peripheral ring of the flexible switch button. The bracket assembly is preferably secured to the switch housing by a single removable screw to allow disassembly when needed.

Abstract: A notebook computer has a main body with a keyboard assembly that includes a base plate mounting a plurality of key buttons and a draining system for draining liquid permeated between the key buttons. The main body further includes a deck plate coupled to a lower plate that forms the main body. The deck plate includes a support portion for the keyboard assembly and a second draining system coupled to a first draining system that drains the keyboard assembly. The lower plate includes a third draining system coupled to the second draining system that includes an access button for securing a storage space in the main body. The access button and the storage space are accessible through a bottom surface of the lower plate. The access button is preferably mechanical. The portable computer reduces or prevents the liquid impinging the keyboard assembly from being introduced into the main body and reduces damage to a main circuit board or the like in the main body.

Abstract: A push switch structure for a display is provided, wherein the elastic sealing member 84 adheres to the periphery of the key switch body 83 for transmitting indication of the display 78. The key switch body is inserted into the opening portion of the elastic sealing member and the collar portion of the key switch body coheres to the elastic sealing member and is pressed with the cover. The key switch body is provided with the accommodating recess for a push-button switch 99. The key switch body is provided with the transparent electrode and the elastic sealing member coheres to the transparent electrode substrate arranged on the front of the display. An assembled unit 76 of the elastic sealing member and the key switch body is assembled to the display case 77, which is assembled to an assembly 96 of the control substrate 79 and the display.

Abstract: The invention relates to an electrical switch with a housing (2). In the housing (2) there is a contact system (3), to which a switching effect can be applied by means of an actuating member (6) which is arranged in an opening (5) on the housing (2) and partly protrudes out of the housing (2). The part of the actuating member (6) protruding out of the housing (2) as well as the opening (5) in the housing (2) is covered by a cap (9) allowing the movement of the actuating member (6). The cap (9) has a cover of a hard material and a sleeve-like part (11) of a flexible material, designed in the manner of a bellows. The cover, designed essentially in the manner of a planar surface (10), is arranged on the part of the actuating member (6) protruding out of the opening (5) in such a way that the actuating member (6) can be moved via a side of the cover facing the user.

Abstract: A structure of an electronic instrument having operation keys and a manufacturing method thereof, in which a dustproof and waterproof function can be secured by a simple structure, are provided. The structure of the electronic instrument having operation keys provides a cabinet providing an opening part for operation keys, the operation keys that are disposed in the opening part of the cabinet so that each of the operation keys is movable in the orthogonal direction to the front surface of the cabinet, and a resin film that covers the surface of the cabinet and the surfaces of the operation keys in the state that the resin film is not cut on the surfaces of the cabinet and the operation keys, and covers a gap formed between the cabinet and the operation keys, and gaps formed among the operation keys.

Abstract: A position sensor for sensing the position of a moving part capable of actuating a plunger belonging to the sensor and more specifically a mechanism for orienting the plunger of the sensor. The sensor includes a guide that is rotationally orientable in a body about a first axis XX′ of rotation, and a plunger sliding without rotation in the guide along the axis XX′. A locator prevents rotation of the guide in the body about the axis of rotation, in a given angular position. The locator is fixed nonremovably in the body and possesses either several tabs spaced regularly about the guide and capable of fitting into one position groove to immobilize the guide or several position grooves in which one tab can fit to immobilize the guide. Such a position sensor may find particular application in detecting the positions of moving mechanical components.

Abstract: A shield for protecting a keyboard assembly includes a one-piece resiliently flexible membrane having a generally planar base overlaying a deck portion of the keyboard assembly, and one or more raised bubbles formed in the membrane and configured to envelope an entire key array or separate or combined key clusters of the keyboard assembly. In a particularly preferred form, a raised bubble enveloping an alpha-numeric and format/command key cluster includes grooves configured to surround and form-fit only alphabetical, numeric, punctuation and symbol keys of the cluster. Thus, a shield adapted for use on the keyboard assembly selected from numerous keyboard assemblies having different key configurations is attained.

Abstract: An electrical switch mounted on a circuit board and providing tactile feedback includes a domed tripper (18) and an elastomeric actuator (16) with a rod having an upper operating end (78) that can be depressed to snap down the tripper and close the switch. The actuator has a lower sealing lip (62) extending in a 360° circle around the tripper and lying against the circuit board upper face, to form a sealed cavity (56) containing the tripper. The 360° sealing lip of the actuator is pressed down against the circuit board by a cap (14) that has a side wall (26) with a lower edge (38) pressing down against the sealing lip. The cap has feet (42) extending down through holes in the circuit board, the feet having latches (48) that hold the cap in place.

Abstract: A surgical handpiece (20) for performing medical procedures. The handpiece (20) has a housing (24) and a membrane switch assembly (22) is mounted to the housing for regulating the operation of the handpiece. The membrane switch assembly has a switch plate (64) mounted in a cavity (42) formed in the housing. The switch plate includes a pair of spaced apart contact pads (86, 87). A dome (120) formed of flexible metal is spaced over the contact pads. A keypad (138) extends over the top of the switch cavity to cover the switch plate. A bezel plate (46) is fitted over the keypad. The keypad is compressed between the bezel plate and the housing to form a seal around the switch cavity. Depression of the keypad results in the dome flexing inwardly and closing the connection between the contact pads.

Abstract: An electronics device having a removable bezel to facilitate cleaning of a keypad structure. The electronics device includes a housing that defines and encloses an interior of the electronics device. Keys included in a keypad structure are formed on a surface of the housing in a manner such that spaces may exist between the keys and the housing. A pliable structure is positioned over and substantially conforms to the keys and the adjacent portions of the housing so as to cover the opening near the keys and to further seal the housing. A removable bezel covers the keypad structure, including at least a portion of the pliable structure. The bezel has openings through which the keys extend, permitting users to depress keys while the bezel is positioned on the electronics device. The bezel, in combination with the keys, provides a keypad surface that enables users to conveniently enter information into the electronics device.

Abstract: A double pole, manual reset switch that is sealed from its application environment. The switch comprises a shell and a base assembly including an actuator, terminals and blade/contacts. After the switch actuator is depressed to a “make” position, it must be manually lifted back to a “break” position. The switch has an epoxy seal along the bottom between the shell and base, heat shrink material around an opening where wires pass through, and an O-ring on the actuator for sealing the top of the switch. The components of the switch are easily assembled in the base prior to insertion of the base assembly into the shell. The wires extend from the switch adjacent to each other at an end, and in an alternate embodiment of the switch, the wires extend in pairs from a rear side of the switch.

Abstract: A waterproof button switch has a switch mount and a base. The switch mount has a stage and a cap arranged thereon. The base has a hole with an inner surface. The cap has relative movement with the inner surface and also has relative movement with the stage. The cap has a recess with rectangular cross-section on a circumference thereof and a leakage proof ring is embedded into the recess. The leakage proof ring has an inner semi-segment and an outer semi-segment. The inner semi-segment has rectangular cross-section for fitting into the recess. The outer semi-segment is slantingly extended from an outer surface of the inner semi-segment and has a triangular cross-section, the outer semi-segment comprises a tail having surface contact with the inner surface of the hole.

Abstract: A push-type flashlight comprises a barrel, a lamp shield assembly, a lamp seat assembly, and a switch device. The lamp shield assembly comprises a waterproof sleeve for threadedly and tightly engaging with a reflective member and thus retaining the reflective member in the lamp shield. The switch device comprises a pusher cap that is threadedly and tightly engaged with an insulating sleeve in the switch member. O-rings are respectively mounted to an upper end and a lower end of an outer periphery of the barrel to thereby provide the required pressure-tight and waterproof effects.

Abstract: A pedestrian push button assembly for activating a signal generator to generate a signal at a street crosswalk. The pedestrian push button assembly has a rigid frame having a piezoelectric material of a solid state switch positioned across a central aperture, and an elastic sealing ring positioned in a groove surrounding the piezoelectric material. A button is secured to the rigid frame such that (1) a seal contact portion of the button sealably rests against the elastic sealing ring, (2) a very small space separates an abutment surface of the button and a stopper surface of the rigid frame, and (3) an elastic pressure portion of the button contacts the piezoelectric material. When operated, the elastic sealing ring is sufficiently biased to urge the elastic pressure portion against the piezoelectric material to generate a signal pulse.

Abstract: A housing part (6) of plastic may be used for an electronic key (1) of a locking system in a motor vehicle. The housing part (6) has an actuating member (3, 4) for an electrical switch (10), the actuating member (3, 4) being designed in a manner of a surface (27, 27′) which can be elastically deformed for the actuation and if appropriate extends essentially in the surface (26) of the housing part (6). The actuating member (3, 4) acts in an actuating manner on a plunger (12) or the like of the electrical switch (10). The actuating member (3, 4) is arranged on a rigid supporting element (13) which is essentially undeformable when the actuating member (3, 4) is actuated. Both the actuating member (3, 4) and the supporting element (13) are prefabricated as half-parts. The half-parts are encapsulated with the plastic of the housing part (6) in the production of the housing part (6) in such a way that the supporting element (13) is facing the electrical switch (10).

Abstract: A sealed, pushbutton, single pole, normally closed switch for soldering to a printed circuit board. The switch operates by pushing an actuator that compresses a spring and breaks continuity between two terminals by moving a spring contact, disposed in the head of the actuator, away from the terminals. An O-ring is provided in an annular groove around a shaft of the actuator for sealing the switch between the actuator and a cover without significantly changing the actuator force, and the bottom of the switch has an epoxy seal. The method of assembling the sealed switch components is simple and low cost.

Abstract: A pointing device of a keyboard which comprises a chassis board for mounting a plurality of keys. The chassis board comprises a hole positioned at its approximate center for mounting the pointing device. The pointing device comprises a pedestal installed below the hole of a chassis board, an elastic pad mounted between the chassis board and the pedestal with a hole positioned below the hole of the chassis board, and a control bar vertically fixed to the pedestal and protruding through the holes of the elastic pad and the, chassis board. The elastic pad is tightly clamped between the pedestal and the chassis board for preventing liquid above the chassis board from leaking into the space below the chassis board and the pedestal through the hole of the chassis board.

Abstract: The present invention relates to a spill resistant keyboard including at least one conduit to permit a spilled liquid to drain through the keyboard without damaging the keyboard's electronics. The conduit is positioned along a sloped surface located along a front edge of a recessed area of the keyboard to promote the drainage of the spilled liquid through the conduit. The keyboard also includes water protection walls positioned around certain elongated keys prevent the spilled liquid from entering the body of the keyboard.

Abstract: A push button switch of the invention has base rubber having actuator portions, a resin molded portion attached to the base rubber, and a permeable film formed on the surface of the resin molded portion. More preferably, a flange portion of the film is disposed so as to avoid a region just above thick portions such as base plate supported portions of the base rubber. A push button switch capable of preventing peeling of coating or the like and intrusion of water can be therefore provided. A push button switch and a switching device which have satisfactory touch and can be thinned can be provided.

Abstract: It is an object to attain simplification of the device assembly work and lowering of the cost, and to raise the water proof and dust proof effect. The structure includes an instrument case (2) having a key insertion hole (7) open to the inside and outside of the case, a key base (3) contained in this instrument case (2) and having a switch contact point portion, and a key seat (4) which is provided on the switch contact point portion side of this key base (3) and which is made of a flexible member having a key (9) inserted into the key insertion hole (7) and a switch thrust piece (11) corresponding to the switch contact point portion on the seat surface side and on the seat reverse side, respectively, and it is configured such that a frame-like rib (10) which is pressed and brought into contact with the inside opening periphery of the key insertion hole (7) and which surrounds the side portion of the key (9) is provided integrally to this key seat (4).

Abstract: An electrical switch mounted on a circuit board and providing tactile feedback includes a domed tripper (18) and an elastomeric actuator (16) with a rod having an upper operating end (78) that can be depressed to snap down the tripper and close the switch. The actuator has a lower sealing lip (62) extending in a 360° circle around the tripper and lying against the circuit board upper face, to form a sealed cavity (56) containing the tripper. The 360° sealing lip of the actuator is pressed down against the circuit board by a cap (14) that has a side wall (26) with a lower edge (38) pressing down against the sealing lip. The cap has feet (42) extending down through holes in the circuit board, the feet having latches (48) that hold the cap in place.

Abstract: A water-resistant switching device has an elastomeric body overmoulded to one part of the casing. The elastomeric body has a rib which co-operates with a hooked flange portion to define a space for receiving a hooked flange of another part of the casing to provide a watertight seal.

Abstract: The electric shaver is provided with a push button switch contained in a case, a push button to press the push button switch disposed in the case switch window and switch it on and off, and a waterproof gasket disposed between the push button and the push button switch to seal the case switch window in a watertight configuration. The case has a switch window with a periphery ridge projecting outward from the perimeter edge. The waterproof gasket has an upper surface contact region to contact the periphery ridge upper edge and an inner surface contact region to contact the periphery ridge inside surface. An inner ring is disposed inside the waterproof gasket inner surface contact region to tightly connect the waterproof gasket inner surface contact region and the periphery ridge. The push button is disposed inside the inner ring in a manner allowing it to move in the direction it is pressed.

Abstract: A double pole, manual reset switch that is sealed from its application environment. The switch comprises a shell and a base assembly including an actuator, terminals and blade/contacts. After the switch actuator is depressed to a “make” position, it must be manually lifted back to a “break” position. The switch has an epoxy seal along the bottom between the shell and base, heat shrink material around an opening where wires pass through, and an O-ring on the actuator for sealing the top of the switch. The components of the switch are easily assembled in the base prior to insertion of the base assembly into the shell. The wires extend from the switch adjacent to each other at an end, and in an alternate embodiment of the switch, the wires extend in pairs from a rear side of the switch.

Abstract: In an apparatus comprising a housing wall formed with a passage closed by an elastically deformable cover which has a raised portion and comprising switching means arranged behind the cover, a switching function of the switching means can be actuated only when a raised portion is moved into an operating position in which the cover has a recessed shape in the area of the raised portion.

Abstract: A form factor for use in the manufacture of a portable computer includes a U-shaped member having at least two distinct elements attached together. In one form factor, the U-shaped member includes two distinct elements: a unitary wall element having a first wall, a second wall, and at least one spacing element to physically separate the first and second walls; and a base element attached to one end surface of the wall element. In another form factor, the U-shaped member includes three distinct elements: a first wall element; a second wall element; and a base element attached to the first and second wall elements. The form factors may also include bosses to facilitate the attachment of computer system components such as printed circuit boards, storage units, and battery units.

Abstract: A dustproof and droplet-proof keyswitch is provided. The keyswitch includes a base plate with at least one stage formed thereon, each stage having a step portion formed at a top part; an elastic member arranged on the step portion; a key cap mounted on the elastic member and having a plunger inserting into the stage. The plunger has an elastic plate clamped between a pair of grooves and having a hook on a lower end thereof; the hook having a beveled lower end latched with the stage when the key cap is released. The stage has at least one projecting rib on an inner side thereof corresponding to at least one notch on the plunger to provide a clamping effect. Therefore, the keyswitch can be used under severe conditions such as in a dusty environment or when the keyboard has spilled on it a liquid such as tea or coffee.

Abstract: The electric shaver is provided with a push button switch contained in a case, a push button to press the push button switch disposed in the case switch window and switch it on and off, and a waterproof gasket disposed between the push button and the push button switch to seal the case switch window in a watertight configuration. The case has a switch window with a periphery ridge projecting outward from the perimeter edge. The waterproof gasket has an upper surface contact region to contact the periphery ridge upper edge and an inner surface contact region to contact the periphery ridge inside surface. An inner ring is disposed inside the waterproof gasket inner surface contact region to tightly connect the waterproof gasket inner surface contact region and the periphery ridge. The push button is disposed inside the inner ring in a manner allowing it to move in the direction it is pressed.

Abstract: A droplet proof keyboard for notebook computer comprises a base; a circuit membrane set on the base; a mounting plate on the circuit membrane set and having a through hole and a plurality of retaining parts for each keyswitch; a rubber cone set having a plurality of rubber cones, each rubber cone having a press part passing the through hole and touching the circuit membrane when the keyswitch is pressed; a plurality of key caps each corresponding to a keyswitch and having locking parts on lower surface thereof; an opaque plate arranged on the mounting plate and clamping the rubber cone; the opaque plate having an opening for each rubber cone and a plurality of slits through which lower ends of a switching lever passing; a switching lever set having a plurality of switching levers; each switching lever having a plurality of upper ends pivotally arranged on the locking parts of the keycap and a plurality of lower ends pivotally arranged on the retaining parts of the mounting plate.

Abstract: A composite molded product has a frame body (1) with a through bore that terminates at openings, and a button portion (2) with a pressing portion (3) extended through the through bore and a flange portion (4) fused to the frame body (1). A silicone resin layer (5, 24) is interposed between the frame body and the flange portion, and surrounds one of the openings. A method of manufacturing a composite molded product by molding a frame body, forming a silicone resin layer on a surface of the frame body, and simultaneously molding a button portion to a predetermined shape while fusion boding areas of the button portion contacting the frame body.

Abstract: In the keyboard assembly, post-like support members are formed sideways of each of the key top housings corresponding to key tops to which torsion bars are attached respectively, out of plural key top housings, the support members being erected integrally from a housing plate and having a hollow structure, through holes are formed respectively in base end portions of the support members so as to extend through the housing plate, and a sheet member is disposed on a back side of the housing plate, the sheet member comprising waterproofing protuberances for closing the through holes in a waterproof manner, spring portions for pushing back the key tops upward, and a sheet body portion which renders the spring portions and the waterproofing protuberances integral with each other.

Abstract: Keyboards with a construction which isolates the interior of the device from water and other deleterious substances in the ambient surroundings. The keyboard also has the capability of transmitting to a second device, upon activation of a key, a coded, preferably infrared (IR) signal uniquely corresponding to the key which is activated.