Abstract: A power tool including a power base and a tool head. The power base includes a trigger and a motor such that the trigger actuatable to drive the motor. The tool head is driven by the motor, and includes a lockout mechanism that inhibits actuation of the trigger in a locked. The lockout mechanism is manually rotatable from the locked position to an unlocked position in which the trigger is actuatable to drive the motor.

Abstract: An interlock system includes first and second racks movable in parallel to each other in a longitudinal direction between opening and closing positions in conjunction with opening and closing of the first cover, respectively. A housing is provided to slidably accommodate the first and second racks in the longitudinal direction. A pinion unit is provided and is sandwiched by the first and second racks. The first and second racks have meshing sections respectively meshing with the pinion unit at one side surfaces extending in the longitudinal direction facing each other. The pinion unit slides in the longitudinal direction by a prescribed length in conjunction with movement of at least one of the first and second racks. The interlock switch is turned on and off in accordance with a sliding length of the pinion unit in the longitudinal direction.

Abstract: A slide switch for constraining a movement of a unit relative to a casing is disclosed in the present invention. The slide switch includes a buckling component, a constraining component and a latch. The buckling component includes a connection portion and an inclined structure. The constraining component includes a block portion and a guide portion. The latch includes a body, a hook portion disposed on the body, a first guide structure disposed on a top of the hook portion, and a contact portion disposed on the body. The hook portion is engaged with the connection portion to constrain the movement of a first unit. The first guide structure pushes the inclined structure to separate the first unit from the casing. The contact portion contacts the block portion to constrain the movement of a second unit, and slides relative to the guide portion to separate the second unit from the casing.

Abstract: A side key of a portable terminal includes a coupling portion inserted into a through-hole formed in the portable terminal from an outer side of the portable terminal and at least one pair of hooks formed on an outer surface of the coupling portion, in which the hooks are formed from an elastic material, pass through the through-hole in a compressed form, and are bound by an inner wall of the portable terminal The side key of the portable terminal may be assembled by being forcedly inserted into the through-hole from the exterior of the portable terminal, such that assembly thereof is easy to perform and the inner space of the portable terminal may be efficiently used.

Abstract: A multi-functional switch assembly and a portable electronic device are disclosed. The portable electronic device includes a housing, a cover, a switch, a base member, a driving member, a switching member, and an elastic member. The driving member is driven to switch on or off the switch, and the switching member is switched between a first state where the base member is secured to the cover, and a second state where the cover is detached from the base member. The elastic member enables the base member slidably relative to the housing between the first state and the second state.

Abstract: An interlock system includes first and second racks movable in parallel to each other in a longitudinal direction between opening and closing positions in conjunction with opening and closing of the first cover, respectively. A housing is provided to slidably accommodate the first and second racks in the longitudinal direction. A pinion unit is provided and is sandwiched by the first and second racks. The first and second racks have meshing sections respectively meshing with the pinion unit at one side surfaces extending in the longitudinal direction facing each other. The pinion unit slides in the longitudinal direction by a prescribed length in conjunction with movement of at least one of the first and second racks. The interlock switch is turned on and off in accordance with a sliding length of the pinion unit in the longitudinal direction.

Abstract: A multi-directional switch grip includes an insulating body, a lamp socket and an insulating disc positioned between the insulating body and the lamp socket. A pair of terminals, an intermediate contact member and a rotating member with a ratchet respectively on two sides is fixed in the insulating body. A conductive member fits around a large ratchet and has half numbers of contact pieces as that of the large ratchet. One of the terminals and the intermediate contact member contact the teeth of the large ratchet in a turned off condition, or contact the contact pieces in a turned-on condition. A switch grip is provided to be pulled or bent in any direction to move a hooking member, which moves and rotates the large ratchet for a set angle to turn on the switch and the switch is turned off by repeating the same action.

Abstract: The present invention is directed to a latch that includes a housing, a pawl pivotally supported by the housing and movable between a latched position and an unlatched position, a spring biasing the pawl toward the unlatched position, and a locking member being rotationally movable about an axis of rotation between an open position and a locked position. The locking member interferes with the movement of the pawl such that the pawl is maintained in the latched position when the pawl is in the latched position and the locking member is in the locked position. The locking member allows the pawl to move to the unlatched position when the locking member is in the open position. The latch may further include a motor housing, a lockplug, a lockplug member, at least one roller switch, at least one gearbox, and a motor.

Abstract: The invention relates to a rotary controller for electrical or electronic apparatuses (21, 22, 23), having a rotating knob (10). In order to offer the user a reference position of the rotating knob (10), with a simple design of the rotary controller, when making a selection between various options or when setting parameters, the invention provides a controllable latching and locking device (15), by means of which the rotating knob (10) can be locked selectively, in order to provide a stop for the rotary movement.

Abstract: A latching mechanism comprises a stationary chamber (1), a spring-loaded main slide (2) which is guided along the stationary chamber (1) in a first direction, a spring-loaded message slide (3) disposed inside the stationary chamber (1) which is guided in a second direction perpendicular to the first direction, and a spring-loaded snap lever (4) which is pivotally mounted inside the stationary chamber (11) and which supports the switch lock's toggle linkage during the switched-on position of an overload protection switch. The main slide (2) is mechanically coupled to a manual actuator. During switching-on, the main slide (2) is moved in the direction of the message slide (3), such that the message slide (3) is moved via interacting bevels (19, 28), and locks the main slide (2). During tripping, the trip latch moves the message slide (3), causing the main slide (2) to be locked into a tripped position and causing the snap lever (4) to be released.

Abstract: The invention includes a keycap having a top surface having a first and second end, and a body portion, said keycap being pivotally connected to a support for movement of the keycap from a first to a second position. A lever extending downward from the body portion of the keycap. The lever is sandwiched between and constantly engaged by a first and second opposed dome structures. Each dome structure has a conductive material on the underside thereof and the dome structure is supported on a substrate having an open circuit. In the first position for the keycap a first dome structure is collapsed and the electrically conductive element on the undersurface of the dome engages the open circuit to close the circuit. When the keycap is moved to a second position, the keycap pivots causing the lever to move in a rotational direction collapsing the second dome structure and said first dome structure biases the lever against the second dome structure.

Abstract: The invention includes a keycap having a top surface having a first and second end, and a body portion, said keycap being pivotally connected to a support for movement of the keycap from a first to a second position. A lever extending downward from the body portion of the keycap. The lever is sandwiched between and constantly engaged by a first and second opposed dome structures. Each dome structure has a conductive material on the underside thereof and the dome structure is supported on a substrate having an open circuit. In the first position for the keycap a first dome structure is collapsed and the electrically conductive element on the undersurface of the dome engages the open circuit to close the circuit. When the keycap is moved to a second position, the keycap pivots causing the lever to move in a rotational direction collapsing the second dome structure and said first dome structure biases the lever against the second dome structure.

Abstract: A plastic drum assembly includes a plastic body with an open top, terminated in a neck having two annular flexing zones, a plastic cover, and a ring for securing the cover to the body. The cover may also have flexing regions corresponding to the flexing regions on the neck. The flexing regions cooperate to permit the neck and the cover to flex in a hinging action in presence of an impact on the body to insure that the cover is not separated, thereby preventing spillage.

Abstract: A switchgear operating mechanism is disclosed which includes two helical springs which are stretched to store energy to close and then open circuit breaker contacts. A mechanism is provided for stretching the springs in response to reciprocating movement of a hook stick. A single operating handle is provided with a spring biased detent arrangement such that the handle may be moved from a predetermined reset position to a closed position to close the circuit breaker contacts using energy from the charged springs. The handle is returned to the reset position by the spring biased detent arrangement and may be moved from that position to an open position to open the circuit breaker contacts using energy from the charged springs. The handle is preferably operable by a shot gun type hook stick.

Abstract: An improved operating mechanism is provided for controlling the operational state of an electrical switch or interrupter between open and closed positions. The operating mechanism includes a switch operating member that is selectively movable in switch-opening and switch-closing directions to effect opening and closing of the switch. The operating mechanism stores energy to selectively close the switch and to immediately thereafter be capable of opening the switch as required. A carriage is driven to charge an opening spring and a closing spring while the switch operating member remains latched in a stationary position. The closing spring acts between the carriage and the switch operating member. The opening spring acts between the carriage and the frame or housing of the operating mechanism. An independent latch is provided for each of the switch operating member and the carriage; each of the latches directly operating on a respective one of the switch operating member or the carriage.

Abstract: A switch machine which is connected by two throw rods to the respective switch points to be operated includes an internal locking arrangement which includes two holding elements pivotally mounted on the respective throw rods and accommodated between a sliding member and a displacement member of the switch machine which are disengageably connected to one another. Each of the holding elements has a free end which is enlarged by two tongues respectively extending toward the sliding member and the casing of the switch machine. Depending on the position of the sliding member, the tongues are received in the associated recesses in the sliding member or in the casing to thereby either lock the throw rods in their positions relative to the casing or to entrain the same for movement with the sliding member.

Abstract: A circuit breaker is provided which includes stationary and movable contacts and a mechanism for moving the movable contact. A rotatable cam is included which has a cam pin fixedly secured thereto. The cam pin extends outwardly from the cam, and is contacted by releasable latch member which prevents the breaker from closing until the latch member is released.

Abstract: A circuit breaker characterized by a plurality of pole-units adapted for interrupting multi-phase circuits having an operating mechanism releasable to effect simultaneous opening of the multi-phase circuits, at least two latch levers biased against a latch member with each latch lever having a beveled surface to effect simultaneous release of both levers.

Abstract: A pushbutton contactor has means for transforming the contacting function into a locking function or vice versa in which detent means are provided on the actuating member which cooperate with cam surfaces in the guide cylinder of the pushbutton contactor. Different cam surfaces in a guide cylinder are offset from each other and can be brought into operative connection with the detent means. By simple displacement of the actuating member, the function of the pushbutton contact can be changed from a locking to an intermittent contact or vice versa.

Abstract: A circuit breaker trip latch assembly includes a primary latch having a latching member releasably latching a cradle in its reset position against the bias of charged operating mechanism springs. The primary latch and either one of the first and second secondary latches commonly engage a latch pin carried by the free end of a pivotally mounted, elongated intermediate latch. The geometry of this common engagement is such as to greatly reduce the force of the charged mechanism springs ultimately absorbed by the first secondary latch as the cradle is relatched and the second, trip initiating, secondary latch while the breaker is closed.

Abstract: Compound hook apparatus for intercepting and holding circuit breaker contacts in a hooked open position against the closing force of charged operating mechanism springs includes a primary hook releasably latching an intermediate hook in a hooking position to fixedly dispose a pin in intercepting relation with a hook cam carried by a breaker movable contact assembly. The primary hook is articulated to unlatch the intermediate hook, freeing the latter to thereby release the movable contacts from their hooked open position.

Abstract: A locking device prevents simultaneous displacement of two slides in a common plane, each slide being associated with a respective push button. Each slide is returned by a respective spring, and has a ramp and a notch directed towards a bolt placed between the slides and capable, by actuation of a push button, of moving to a working position to prevent movement of the other push button. The improvement is that the bolt is kept at a central rest position, equidistant from the ramps, by a resilient element. When the bolt is placed in working position by actuation of a first push button, actuation of the second push button causes the bolt to be kept in that position. In the working position, there is complete absence of any contact, between the bolt and the first slide, which might otherwise prevent the return movement of the first slide.

Abstract: Switch arrangement with switches completely equipped both for normally closed and for normally open operation, in which, by means of an insulating part which can be selectively placed operatively with respect to the contact pieces which cooperate as breaker or the contact pieces which cooperate as maker, one type of operation in each case is blocked. For this the insulating part has abutment stops, which in both inserted positions in each case lie outside the contact places and which assure an air spacing between the contact pieces which thereby are blocked from making contact.

Abstract: A circuit breaker includes a lever which is connected to a spring mechanism at one point between both ends of the lever; a movable contact connected to one end of the lever; a stationary contact placed to face the movable contact; a fitting mechanism which is formed on the lever at a position of the movable contact side from the position connecting to the spring mechanism; and a ratchet mechanism which fits to the fitting mechanism so as to fit said lever at the position when the other end of the lever is shifted to a predetermined position against the force actuating the spring mechanism.

Abstract: A manually operated handle assembly for operating high voltage circuit interrupter devices which are suitable for circuit opening operations but which are not suitable for circuit closing operations. Interrupter devices for which the handle assembly embodied in the present invention is suitable, therefore, are intended to be used in conjunction with a disconnect switch that is suitable for circuit-closing operations. By removing a lock bar, which unless removed prevents movement of the operating handle, and raising the operating handle to the horizontal position, the operating handle can be pivoted to rotate an operating shaft which causes the interrupter device to trip open. Closing the interrupter device is accomplished by pivoting the operating handle farther and thereby rotating the operating shaft an additional amount.

Abstract: A lock-off switch comprises a lock plate rotatably disposed on a slider and having a projection at one side and a hole elongated in the lengthwise direction and a pin secured to the slider and loosely fitted in the elongated hole of the lock plate thereby to hold the lock plate rotatably. In the elongated hole of the lock plate a compression spring stretches between the pin and one end of the elongated hole, thus urging the lock plate toward a switch case. The slider has a stopper engageable with the projection of the lock plate thereby to stop the slider. An urging means, such as a compression spring, is provided at the other side of the slider and urging the projection of the lock plate into engagement with the stopper, thereby to prevent the slider from being pushed. To push the slider, the lock plate is rotated against the urging force of the urging means thereby to release the projection of the lock plate from the stopper.

Abstract: Locking device of low control power for an electrical device having, between the locked part and the locking control element, a locking assembly having a rolling movement. This locking assembly has a rotating bearing and at least one coaxial disk is installed floating in a yoke connected with the control element. The device is installed more particularly on circuit-breakers for which it ensures accurate controlling, low consumption of power and high reliability.