Abstract: An audio system has an enclosure and a transducer that is mounted to the enclosure. The transducer creates a vibration of the enclosure in response to being driven by an audio signal. A cradle assembly mechanically couples a portable device to the enclosure through one or more isolators such that only a portion of the vibration is coupled to the portable device. The enclosure is supported substantially entirely by the cradle assembly.

Abstract: A sound adjustable device that varies exhaust-noise having a casing including a sound-dampening material that dampens exhaust-noise, an outer slotted pipe inside the casing, an inner slotted pipe inside the outer slotted pipe, and wherein at least one of the outer and inner slotted pipes is movable with respect to the other to alternately align the slots of the respective slotted pipes for a quieter exhaust-noise and to misalign the slots of the respective slotted pipes for a louder exhaust-noise. The sound adjustable device may also include a heat-shielding material inserted between the casing and the sound-dampening material to shield the casing from heat emitted by the exhaust, and a heat-resistant material may be included in the inner and outer slotted pipes.

Abstract: A method and device to reduce the noise produced by jet aircraft engines and/or other supersonic nozzles involves the use of corrugated engine seals (30) for the secondary internal divergent flaps (14) of the nozzle (10). Such corrugated seals (30) serve not only to eliminate shock-generated noise, but also generate a counter-rotating vorticity to force low speed mixing of surrounding ambient air with the high-speed jet exhaust. Lower exhaust velocities, combined with reduced levels of the turbulent Reynolds shear stress, lead to reduction of turbulence-generated noise, including Mach wave emission.

Abstract: A noise control apparatus for a motorcycle exhaust system. The apparatus includes at least one exhaust pipe assembly having a direct pass-through mode and an indirect mode wherein exhaust gases are optionally directed through noise attenuating means. The apparatus includes at least one valve for controlling exhaust gas flow, a motor, a switch controlling said motor, a wire carrier, a wire connected between the carrier and the valve(s), and a rotary threaded drive shaft driven by the motor for moving the positioner. The threaded drive shaft includes radially extending and circumferentially facing stop means on both sides of said wire carrier. The valve is positioned under the control of the switch.

Abstract: The object of the present invention is to provide a fuel cell vehicle capable of generating running noise that does not feel unnatural based on the driving situation by noting and effectively utilizing the fact that a muffling section is provided on a gas piping line of a fuel cell system. In a fuel cell vehicle (1) in which a fuel cell system (3) equipped with a muffling section (20) on a gas piping line (5) is mounted, the muffling capability of the muffling section (20) is variable based on the driving situation of the fuel cell vehicle (1). In a low-speed driving situation, the muffling capability of the muffling section (20) is lowered. For example, the muffling section (20) has a direction control valve (24) that changes over between a muffler (21) and a bypass passage (23), based on the driving situation. The direction control valve (24) may be mechanically operated based on the gas flow speed, or its changeover operation may be controlled by means of a control device (51).

Abstract: A method of forming a panel constrained layer damper treatment from a laminate, having a panel and a visco-elastic layer attached thereto, by forming a panel constrained layer damper from the laminate to a predetermined shape is provided. Additionally, the method of the present invention includes attaching the panel constrained layer damper to a substrate to form the panel constrained layer damper treatment. The method may also include subjecting the panel constrained layer damper to heat energy to bond the visco-elastic layer to the substrate. In addition, various methods of attaching the panel constrained layer damper to the substrate are provided.

Abstract: The resilient plate (2) may be in the form of a nail plate with punched out nails (6) on respective flanges (3) and a resilient connecting portion (5). A plurality of the resilient plates (2) connect spaced apart pairs of studs and top and bottom plates to form a prefabricated building frame such as a wall. The resilient plates (2), utilising mass-spring-mass principles of sound attenuation, will react to sound impacting on the elements of the building frame to provide a required sound attenuation. In alternative embodiments the plate (2) may define a stud and/or may have one of its flanges securable to a masonry or concrete wall.

Abstract: A wearable lightweight fire fighter's personal escape system and method includes a rope, having a distal and proximal end, organized in parallel segments disposed in an inner pouch. The inner pouch is entirely contained in an outer pouch that is appointed to be removably attached to a belt or harness, worn by a fire fighter. The proximal end of the rope exits through an opening in the inner pouch and outer pouch and is attached directly to a lightweight hook, or optionally enters a belay device. The hook has a sharp point for creating a purchase point on soft surfaces, a hook opening having sufficient diameter to surround radiators, steam pipe and the like, and capture rope that surrounds substantial objects. The hook has a central opening appointed for holding a firefighting tool to aid in creating a substantial object. The fire fighter escapes by creating a purchase point and repelling at a high speed or at a controlled speed by adjusting belay friction.

Abstract: A stanchion used as part of a regulatory safety barrier around the ledge of an elevated construction slab comprises a square tubular enclosure having an open lower end and a closed upper end. A foot extends orthogonally near the lower end, and rests against the upper surface of the ledge. A clamping member telescopically engaged into the lower end of the enclosure has an arm also extending from its lower extremity and is positioned against the lower surface of the ledge. The arm is urged toward the foot in a ledge-clamping action by the turning of a threaded stem running inside the telescopically engaged enclosure and clamping member. The threaded stem has a lower end captured by a nut welded inside the clamping member. The upper end of the stem protrudes through a hole in the closed end of the enclosure and is fitted with a wing-nut and a hex-nut so that the stem can be turned either by hand or by means of a wrench.

Abstract: An apparatus and method, for supporting a work piece, utilize an expandable articulated support frame having a plurality of telescopic columns arranged in rows and interconnected by a plurality of connecting rods pivotably connected to each other and the telescopic columns at intersections thereof, with upper ends of the telescopic columns being adapted for supporting the work piece thereupon.

Abstract: A ladder leveling apparatus is provided which is designed for easy installation onto and removal from a ladder, which may be installed to only one leg of a ladder rather than two legs, which is light in weight, which is easily adjustable by the end user, an apparatus which does not require the ladder to be adapted to the leveling apparatus through the use of holes and bolts, a ladder leveling device that adapts to a wide variety of ladders having a variety of leg sizes, a ladder leveling device that is applicable even for use for leveling with a step ladder.

Abstract: An electric motor thermally associated with an oil reservoir of an aircraft engine is selectively operated to generate heat for pre-heating the oil prior to engine start.

Abstract: A passenger or cargo elevator is disclosed that relies on pull chains in a closed system in which the chains are used both to pull the elevator car and also to pull the counterweights. In this way, it is possible not only to use counterweights that exceed the actual weight of the elevator car, but also additional counterweights of up to 50% of the load to be lifted may be employed without incurring the problem of the chains being jerked suddenly owing to inertia during braking. The pulling motor devices, such as planetary-type speed reducers, are coupled to servomotors which can be used to program the characteristics of the movements required by the elevator. The control system includes a programmable logic controller (PLC) and a servomotor controller which, together with the coders of the servomotors, provide position, speed, and torque characteristics for operation of the system.

Abstract: A suspension mechanism includes an elevator car guided to move up and down relative to an upper supporting member, a screw shaft having an upper end attached to the upper supporting member with a locking nut, a driving nut rotatably supported in a casing and having an inner thread threaded with the screw shaft, and a spring member attached onto the screw shaft and engaged with the upper supporting member for applying a spring-biasing force between the screw shaft and the upper supporting member and for centering the screw shaft relative to the upper supporting member and for preventing a backlash from being generated between the screw shaft and the upper supporting member.

Abstract: The present invention relates to a monitoring device for a elevator system, comprising an optical sensor unit, which receives light emitted by a external light source existing in the vicinity of the elevator system and which transforms the light into contrast information and an evaluation unit, which evaluates the contrast information in order to monitor the elevator system by means of the contrast information. The present invention relates further to a method for monitoring a elevator system, comprising the steps of receiving light emitted by a external light source existing in the vicinity of the elevator system, transforming the light into contrast information, evaluation of the contrast information in order to monitor the elevator system by means of the contrast information, recognizing a situation of the elevator system and triggering of a reaction adapted to the situation.

Abstract: In a method for setting the floor associations of a plurality of operating units of an elevator installation, a plurality of operating units is distributed over a plurality of floors. These floors can be traveled to by an elevator car having a transmitter unit. In the method, the elevator car is moved to a predetermined one of the floors. The operating unit allocated to the moved-to floor is activated. The position data describing the floor at which the operating unit is located are communicated from the transmitter unit to the operating unit and/or to a central control unit. The position data are stored in a memory unit of the operating unit and/or in the central control unit.

Abstract: The counterweight according to the invention for an elevator with a frame (1) comprising two vertical U-shaped posts (3) parallel and opposed to each other and connected to each other by at least one upper cross-beam (5) and one lower cross-beam (7), wherein the wings of the vertical posts accommodate flat ballast weights forming a mass and piled up on each other in the frame (1), is characterized in that the upper ballast weights (11?a, 11?b), at least those located at a higher height than that of the conventional tilted assembly of the lower one-piece ballast weights (11?), comprise at least two parts interlocked with each other so that they can be successively assembled by interlocking them in a plane and in rows between the two posts (3), said interlocking providing a good lateral stiffness to avoid the lateral escape of said two interlocked ballast weight parts (11?a and 11?b) out of said frame (1) during counterweight displacement.

Abstract: A mountain board having a leg-actuated safety brake mechanism and a leg-actuated brake mechanism. The brake mechanism includes a displaceable pad or cup attached to the top region of a post attached to, and extending from, the mountain board. The safety brake mechanism includes a safety brake lever, or push rod, nested in the displaceable pad. The safety brake mechanism and the brake mechanism can be coupled to the same brake for seizing wheel rotors The safety brake mechanism is disengaged upon a rider pushing the push rod. The brake mechanism is functional only upon the safety brake having been disengaged. A steering mechanism including resilient members interconnecting the wheels to their respective yokes provides improved carving capabilities. Chamber-less tires with open cavities provide puncture-proof feature.

Abstract: A parking brake for a commercial vehicle equipped with an air-operated service brake is configured in such a way that the actuating energy for the brake is reduced in comparison to a configuration with a spring brake cylinder, while the installation space in the wheel area is minimized. Primary functional parts of the parking brake include an inner race and an outer race, which delimit an annular gap. Displaceable tapered-roller bearings are located in the annular gap. To adopt a release position in opposition to the action of a compression spring, the tapered roller bearings are disengaged from the conical surfaces of the inner race and the outer race.

Abstract: A method is provided for adjusting the play between the brake linings and the brake disc of a pneumatically actuated disc brake by way of at least one or several adjustment devices actuated by electric motors. The method sensorlessly determines the play caused by braking with the aid of a computer by use of a computer prognosis, wherein the prognosis includes wear caused by braking and the brake component variations in time produced by energy released by the braking, and the thus determined variations are adjusted at predetermined time intervals on at least one adjustment device by a corresponding adjustment process.

Abstract: A disk brake kit including a pair of brake pads disposed on opposite sides of a brake disc and carried from calipers suspended from a kit frame indexed to predetermined land marks on the wheel housing.

Abstract: A disc brake includes brake pads (7), which are slidably received on either side of a brake disc within guide portions (6) of the disc brake, and including a spring arrangement (10) for spring cushioning the brake pads (7). Disc brakes of this type are frequently used in motor vehicles. To improve the spring cushioning of the brake pads, the spring arrangement (10) is equipped with at least one radial spring element (11) for radially clamping the brake pads (7) with respect to the guide portions (6), at least one axial spring element (22) for axially clamping the brake pads (7) in relation to each other, and at least one tangential spring element (18) for tangentially clamping the brake pads (7) in relation to the guide portions (6). The three spring elements (11, 18, 22) act in different spatial dimensions and can be embodied as separate components which are independent of each other.

Abstract: A brake cylinder for brakes of a motor vehicle, in particular for utility vehicles, comprising a spring loaded brake section and a service brake section is configurable in such a way that a total length is substantially shortened. In the inventive cylinder, the spring loaded brake section and the service brake section are constructed in such a way that they form a single unit. The brake cylinder comprises a pressurized piston for service braking and a spring-loaded piston for parking braking. The two pistons are connected to each other through a shift cylinder and are disconnected by the pressure relief in a second pressure chamber through the shift cylinder in such a way that the piston is displaceable by means of a spring-loaded spring. In order to release the brake, the piston for service braking is pressurized and reconnected to the piston. The unit is displaced to a release position by the action of a return spring through the pressure relief of the piston.

Abstract: The present invention relates to a disc for a disc brake comprising a support bell and braking band being coaxial with each other. The support bell has a plurality of radial housings and the braking band has a plurality of connecting elements suitable to connect it to the bell. The connecting elements are integral and made as one piece with said braking band and overhang from the braking band in order to engage the corresponding radial housings. The connecting elements are at least partially surrounded by walls being integral and made as one piece with the support bell such as to be fastened in the axial direction and in the tangential direction and such as to be capable of sliding in the radial direction.

Abstract: A subassembly for use in a brake assembly, the subassembly comprising a shim, a backing plate and a friction pad formed of a friction pad material, wherein the friction pad material extends into at least one pass-through hole in the backing plate; and wherein one or more flanges perimetering at least one opening in the shim are encased in the friction material; whereby the shim is resisted from movement at least in part by the one or more flanges being encased in the friction pad material. A preferred methodology of forming the braking subassembly comprises the steps of forming the friction pad on the backing plate and at least partially filling the at least one pass-through hole with said friction pad material such that the one or more flanges perimetering the at least one opening in the shim is encased in the friction pad material.

Abstract: A pneumatic spring-vibration damper unit is provided for absorbing shocks on wheels and chassis parts of motor vehicles. A variable air chamber is delimited by a rolling bellows which is disposed between a first subassembly that is fixed to the vehicle body and is provided with a vibration damper system and a second subassembly that is fixed to the vehicle chassis and is movable therewith. A piston rod connects the first subassembly located at the vehicle body end and the second subassembly located at the chassis end and whose free end located at the vehicle body end is accommodated inside a cylinder tube of the vibration damper system so as to be longitudinally movable by means of a piston. The piston rod (8) is guided within the cylinder tube (6) of the vibration damper system (2) so as to be longitudinally movable with the aid of a drag bearing arrangement (13).

Abstract: A lock-up device 5 includes a piston 51 axially movably and rotatably supported by the turbine 10, a damper mechanism 7 that elastically connects the piston 51 with the turbine 10 in the rotational direction, a first friction plate 56 located between the front cover 2 and the piston 51 and axially movably and non-rotatably supported by the piston 51, and a second friction plate 57 located between the piston 51 and the first friction plate 56. The second friction plate 57 is axially movably and non-rotatably supported by the front cover 2.

Abstract: The present invention provides, a roller-type one-way clutch comprising an annular outer race provided at its inner periphery with a cam surface, an inner race spaced apart from the outer race in a radially inner diameter side and disposed in coaxial with the outer race for a relative movement therewith and having an annular outer peripheral track surface, a plurality of rollers disposed between the outer race and the inner race and adapted to transmit torque between the outer peripheral track surface and the cam surface, a cage for holding the plurality of rollers, and a C-shaped annular spring for biasing the rollers toward a direction in which the rollers are engaged by the cam surface, through the cage, and wherein the C-shaped annular spring is assembled in a diameter-enlarged condition.

Abstract: A roller freewheel comprises an outer ring which is configured as a sheet metal part shaped without cutting and has a cylindrical outer surface and an inner surface which is provided with clamping ramps, a plurality of clamping rollers which are sprung against the clamping ramps, and a cage which is arranged fixedly in terms of rotation in the outer ring, is configured as a sheet metal part shaped without cutting and to which springs are fastened which are provided for suspending the clamping rollers.

Abstract: A synchronizing device of a manual transmission for synchronizing rotation speeds of a rotating shaft and a shift gear includes a gear clutch that rotates with the shift gear and a synchronizer assembly. The synchronizer assembly includes a synchronizer ring; at least one first ring, having a slanted surface, between the synchronizer ring and the gear clutch; and at least one second ring with a slanted surface that contacts the slanted surface of the first ring.

Abstract: The present invention provides a wet multi-plate clutch comprising an external toothed plate formed by sticking a friction material to a core plate and an internal toothed plate formed by sticking a friction material to a core plate and designed so that torque is transmitted by engaging the external toothed plate with the internal toothed plate and wherein the friction materials are stuck to opposed surfaces where the external toothed plate is opposed to the internal toothed plate, and surfaces of the core plates to which the friction materials are stuck are provided with a plurality of surfaces offset axially.

Abstract: The invention relates to an electomagnetic frictionally engaged clutch (1) provided with a rotor part (4) comprising a friction lining (2). An electrical coil (6) and a first permanent magnet (14) are arranged on the rotor part (4). Said clutch also comprises an armature disk (10) which is connected to a second shaft (9) and can be displaced in a rotationally fixed manner, but axially from a coupled end position to an uncoupled end position. The aim of the invention is to enahle the coil (6) of the clutch (1) to be current-free both in the coupled state and in the uncoupled state. To this end, means (15; 20) are provided for exerting an axial force opposing the magnetic force of the first permanent magnet (14) on the armature disk (10).

Abstract: The invention relates to a load torque lock (10) for independently locking load-side torques during the drop or cessation of a drive-side torque, comprising a frame-fixed housing (11), an input shaft (12) that, together with engaging means (28), projects inside a housing borehole (18), and comprising an output shaft (13) that, together with an axially protruding extension (19), projects in a chord-like manner into the housing borehole (18). The load torque lock also comprises two clamping bodies (14), which are adjacently arranged inside the housing borehole, which are driven by the engaging means of the input shaft (12) together with the extension (19) of the output shaft, and which are pressed and clamped tightly by the extension (19) of the output shaft against the inside wall (18a) of the housing borehole.

Abstract: Disclosed is a driving device for passage gates or thoroughfare gates and door or gate drives. Said driving device comprises a brushless DC servo motor to which a servo regulator is assigned. The output shaft of said DC servo motor is directly connected to the drive shaft of the locking element. The DC servo motor can be accurately regulated to a great extent regarding rotational speed, torque, etc. and can be adapted to different requirements via the servo regulator such that the same motor can be used for many different applications along with said servo regulator, i.e. a continuous drive system is created. Coupling gears and reduction gears, i.e. parts that are prone to malfunction and wear, can be dispensed with due to the fact that the locking element is directly driven, thus requiring less maintenance work at greater intervals.

Abstract: System providing a substantially enclosed piece or pieces of equipment, optionally fuel cell balance of plant equipment, available for shipment and storage at a user location. The system comprises a tool, a housing associated with the tool and having openings in the flooring through which portions of the tool are inserted, and a piece or pieces of equipment having a support, the tool accommodating movement of the support, and specifically on portions of the tool inserted through the housing. Movement of the equipment occurs along the longitudinal axis of the tool between points positioned inside and outside of the housing. The tool is removed from the housing after the equipment is positioned inside thereof so that as a consequence of such removal, the support of the equipment assists in substantially sealing the housing.

Abstract: A flavor strip retaining board for a vending machine signfront. The flavor strip retaining board has a mounting panel and a retaining panel that is spaced from and fastened to the mounting panel to receive flavor strips between the mounting panel and the retaining panel. Fasteners that fasten the mounting panel to the retaining panel are located to support and position flavor panels at a desired location on the mounting panel. The mounting panel may be mounted to a vending machine signfront panel or to a frame of the vending machine.

Abstract: An apparatus for orienting a pill. The apparatus has a curved member having a point of tangency at which the pill is positioned on the curved member and a portion for positioning the pill skewed from a tangent at the point of tangency.

Abstract: An article merge unit (14) includes a first conveyor for conveying articles (24, 26) in a first stream having a first speed, a second conveyor (32, 34) having a plurality of lateral pushers (46), and a third conveyor (36). The first conveyor conveys the articles in the first stream to the second conveyors where the lateral pushers selectively diverting the articles across the second conveyor to the third conveyor. A control controls the conveying speed of the third conveyor and selectively actuates the lateral pushers to push a selected article from the first and second streams to the third conveyor wherein articles conveyed on the third conveyor are conveyed in a take-away stream having no side-by-side articles and the take-away stream has a greater speed than the first speed.

Abstract: An apparatus for conveying sheet-type flat items to a sheet-collecting location includes at least one lower belt conveyor and one upper belt conveyor arranged above the lower belt conveyor. A first operating mechanism is arranged to move the upper belt conveyor relative to the lower belt conveyor between (1) a lower position in which the upper belt conveyor is in an operating position adjacent to the lower belt conveyor and comes in contact with the flat items positioned on the lower belt conveyor and (2) a raised upper position in which the upper belt conveyor has a segment positioned at such a distance to the lower belt conveyor as to be out of contact with the flat items positioned on the lower belt conveyor.

Abstract: The station for supporting a moving conveyor belt (3) comprises: a cradle (17) for guiding the belt (3), the cradle (17) comprising at least two rollers (33) for guiding and supporting the belt (3); a frame (15) for supporting the rollers (33); and anti-jamming protection (35) disposed along the rollers (33) and secured to the frame (15). The protection (35) comprises a protective bar (36) extending continuously along the length of at least two rollers (33), being substantially parallel to a generator line of each roller (33).

Abstract: A switch comprising: first and second fixed electrical contacts, first and second power source contacts, a handle, and two mobile conductors moveable axially simultaneously between a non-conducting position and a conducting position wherein in the conducting position one conductor contacts the first fixed electrical contact and the first power source contact and the other conductor contacts the second fixed electrical contact and the second power source contact and wherein subjecting the handle to both rotational and axial movement causes the mobile conductors to move between the non-conducting position and the conducting position, so activating the switch.

Abstract: An architecture effectively connecting a rotary switch and a casing comprises: a rotary switch and a casing that is engaged with the rotary switch via a rotary disc of the rotary switch. The casing has multiple snap-fit parts corresponding to snap-fit slots of the rotary disc to form a snap-fit interconnection therebetween. When the casing is rotated, the casing will drive the rotary switch to rotate via the interconnection between the snap-fit parts and the snap-fit slots, and a signal module will output instructions corresponding to the rotation track of the rotary disc. The interconnection between the casing and the rotary disc is implemented with a snap-fit method, and the rotated casing drives the rotary disc to rotate synchronically and create signals. As the casing is engaged with the rotary disc via a snap-fit method, the casing is hard to deviate or loosen. Thus, correct instructions will be exactly output.

Abstract: A collision detection device is provided with a coil which is arranged at an inner side of an outer panel of a body portion of a vehicle and faces the outer panel to generate a magnetic field in a direction toward the outer panel, and a collision determining unit for determining a collision with the body portion of the vehicle based on a variation of an inductance of the coil. The collision determining unit includes a resonance circuit which is constructed of the coil. When there occurs a collision with the vehicle body portion, a distance between the outer panel and the coil will decrease so that an inductance of the coil can instantly decrease. Therefore, a resonance frequency of the resonance circuit will increase and be detected, thus shortening the response time.

Abstract: A practical control device having up to eight independent channels of communication for simultaneously operating a plurality of electromechanical devices or for simultaneously performing a plurality of independent functions on an electromechanical device, such as a prosthetic hand, includes a foot-operated controller and a microprocessor. The foot-controller includes a plurality of pressure sensors mounted at selected locations on a substrate. The microprocessor converts sensor inputs from the foot-operated controller into commands for a controllable electromechanical device such as a prosthetic hand. Commands may be communicated via a radio transmitter or via hard-wiring.

Abstract: An electrical switch comprises first and second switch elements including respective first and second electrically conductive flexible domes for selectively making electrical connections. The second switch element is disposed adjacent the first switch element with an electrical conductor therebetween. An actuator is movable for exerting force on the second switch element via a spring, and for exerting force on the first switch element via the spring and the second switch element. The second flexible dome may have an actuating force that is less than the actuating force of said first flexible dome.

Abstract: Present invention enables to illuminate an artwork or alphanumerics of related key(s) of an electrical device from above with illumination module situated in the vicinity of the artwork or alphanumerics. Present invention also enables the use of opaque material in the keys or in the keypad.

Abstract: The invention relates to a lighted pushbutton-type switch assembly which comprises a base body adapted to be secured to a panel and a support board carrying a connector and a switch connected to a circuit. The support board is adapted to be fixed to the base body. An actuating assembly is mounted in a linearly movable fashion on said base body to operate said switch. A light source is mounted on an auxiliary board secured to the base body and connected to conductors terminated in contacts arranged on a region adjacent to the edge of the auxiliary board and adapted to be coupled to said connector in order to connect said contacts to the circuit. The light source is arranged to emit light through a translucent or transparent cover on the actuating assembly.

Abstract: A double safety control device for a push switch comprises: a body, a conducting seat, a plurality of push buttons, a guiding plate, a positioning piece, a spring, a safety leaf spring, and a connecting member for connecting to power source. The respective components are positioned on the body, the push buttons serve to press the conducting seats, the connecting member is arranged at a predetermined distance away from the safety leaf spring, the guiding plate is formed with slant protrusions to be pressed by the push buttons, and the guiding plate cooperates with the spring and the isolating protruding member to push the safety leaf spring. With the arrangement of the abovementioned components, the safety leaf spring of the present invention can activate the power source after the switch pressing action is confirmed, thus preventing the occurrence of electricity leakage.

Abstract: An electronic apparatus includes a housing, a first switch, a second switch, and a knob. In this case, the first switch and the second switch are disposed on an inner surface of the housing. The knob is pivoted on the housing, and disposed between the first switch and the second switch. When the knob rotates in a first direction, the knob touches the first switch. When the knob rotates in a second direction, the knob touches the second switch.

Abstract: A pivot switch mechanism (200) mounted on a shell (20) of an electronic device (300) includes a fixing portion (30) and an operating portion (40). The fixing portion (30) is mounted on the shell (20) and is connected with the operating portion (40) in a spring-biased manner. The fixing portion (30) defines a receiving hole (32) and two receiving grooves (28). The operating portion (40) includes two resisting columns (48) and at least one pivotal shaft (424). The operating portion (40) is located in the receiving hole (32). The at least one pivotal shaft (424) is received in the receiving grooves (28). When the operating portion (40) is pressed, the operating portion (40) rotates/pivots relative to the receiving grooves (28) via the at least one pivotal shaft (424). When the pressure on the operating portion (40) is released, the operating portion (40) returns to its original position.