Abstract: A first support member and a second support member are provided in a rotation support device and a worm gear is rotated in a state that the second support member is inserted in the first support member, whereby the worm gear is prevented from being shaken through the first support member and the second support member and heat transmission to a housing due to rotation of the worm gear to damage the housing is prevented.

Abstract: A venting system for a keyboard assembly is disclosed. A keyboard assembly including a printed circuit board defining a set of apertures, and a group of switch housings coupled to the printed circuit board. Each switch housing of the group of switch housings may define a switch opening positioned above one of the set of apertures of the printed circuit board. The keyboard assembly may also include a shield defining at least one channel of a venting system formed below the printed circuit board. The at least one channel may be in fluid communication with at least one aperture, and at least one of the switch openings positioned above the at least one aperture.

Abstract: A control device with limit switches is provided. The device has a container housing an electric circuit provided with one or more limit switches, and a driving assembly configured to control operation of a valve or an actuator through the limit switches of the electric circuit. The driving assembly has a shaft configured to be rotatably coupled to a valve or an actuator and one or more cams keyed on the shaft and is configured for driving the limit switches of the electric circuit. The shaft has a gripping surface and each cam has a radial clamping mechanism whose gripping members are arranged in correspondence of a through hole configured to allow to fit the cam onto the shaft.

Abstract: A cantilevered push button adapted for accepting an input on an electrical or electronic device is disclosed. The button can include an elongated button top component disposed about an exterior surface of an electrical or electronic device such that it is accessible to a user, and having two opposing distal ends associated with separate user inputs. A first fulcrum is located between the first distal end and the midpoint of the elongated button top component, while a second fulcrum is located between the second distal end and the midpoint. A first electrical contact is associated with the first distal end, such that when a user presses on the first distal end, the elongated button top component pivots about the second fulcrum and the first electrical contact is actuated. A second electrical contact is similarly associated with the second distal end and first fulcrum.

Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

Abstract: A contact switch including a rail having slot with a first straight section and a second curved section, a toggle unit inside a housing, the toggle unit including an extension unit that slidably engages the slot and at least one contact, a contact unit in the housing including at least one contact, where the toggle unit moves in the housing such that the contacts on the toggle unit engage at least one contact on the stationary unit in the first straight section and the contacts disengage in the second curved section.

Abstract: In the present disclosure, a link part is connected to a worm wheel rotated according to rotation of a worm gear and a movement member is connected to the link part, whereby a rotational motion of the worm wheel is changed to a translational motion in a horizontal direction through the link part and the movement member. Thus, although an indicator is positioned on an upper side of a handle insertion part, a position according to movement of a circuit breaker body may be easily indicated, while using a simple structure.

Abstract: The present invention relates to a keyboard, including a first baseboard, a second baseboard, a deformation element, a key cap, and a connecting element. The deformation element is disposed between the first baseboard and the second baseboard and is capable of deforming according to a received voltage signal. The deformation element drags the second baseboard to move in a first direction when the deformation element receives the voltage signal and therefore deforms to be in an extended state, so that the key cap is at a first height. The deformation element pushes the second baseboard to move in a second direction when the deformation element does not receive the voltage signal and therefore deforms to be in a bent state, so that the key cap is at a relatively shorter second height.

Abstract: A rotation operation device includes: a rotation operation section having a cylindrical shape; multiple recessed and projecting sections arranged on an axial end surface or a peripheral surface of the rotation operation section; a conductive section having a protruding section protruding toward each recessed and projecting section and an elastic section biasing the protruding section to each recessed and projecting section, and movable in a recess-and-projection direction when the rotation operation section rotates; an electrode section changing a capacitance in accordance with a movement of the conductive section; and a detecting section detecting the change in the capacitance. The conductive section is moved in turn in the recess-and-projection direction at a different timing. The detecting section detects a rotation direction and a rotation quantity of the rotation operation section by means of a combination pattern of the change in the capacitance.

Abstract: A high amperage circuit breaker and terminal isolation fastener cap is disclosed. The circuit breaker includes a base having a cavity formed in a top surface thereof, with a mounting hole located within the cavity. Input and output terminal studs are secured to the base and are positioned in a side-by-side arrangement. The hinged fastener cap comprises a fastener receptacle positioned within the cavity of the base and a cover member rotatably attached to the fastener receptacle via a hinge member, such that the cover member may be rotated to a closed position relative to the fastener receptacle. The cover member includes a dividing flange formed thereon that, when the cover member is in the closed position, forms at least part of a dividing structure positioned between the input and output terminal studs to provide electrical isolation therebetween.

Abstract: A combination switch lever includes a cylinder body including an opening, a plurality of switches to operate an electric component disposed in the vehicle, a flexible board that is disposed inside the cylinder body and that includes a circuit part and a non-circuit part disposed outside the circuit part in a width direction, and a first guide member and a second guide member that are disposed inside the cylinder body so as to be opposite to each other sandwiching the flexible board. An inside projection is formed at a vicinity of the opening of the cylinder body on an opposite surface of the first guide member and/or the second guide member, and the inside projection presses the non-circuit part. The first guide member and the second guide member include an adjacent opposite surface such that an opposite distance therebetween is partially narrowed.

Abstract: Embodiments are directed to a dome switch and methods related to the use thereto. In one aspect, an embodiment includes a key cap. The embodiment may further include a domed structure having upper and lower portions. The domed structure may be configured to deform in response to an input force received at the upper portion by the key cap. The embodiment may further include a collar affixed to the lower portion and extending toward the key cap. The collar may resist deformation of the domed surface.

Abstract: A switch device includes a button, a slider, and a holder in which the button and the slider are slidably held. The slider includes first guide portions. The holder includes: a first holding portion which holds the button; a second holding portion which holds the slider; and second guide portions engaged with the first guide portions. The button includes: a protrusion wall interposed between the second holding portion and the slider; and engaging portions provided in the protrusion wall and engaged with guide projection portions. At least one guide projection portion is provided to extend in a sliding direction of the slider, and a fitting-in portion into which an end portion of the protrusion wall is fitted is provided on a side surface of the guide projection portion extending in the sliding direction.

Abstract: A door locking device of a distribution board of an air circuit breaker, including a transmission shaft transmitting power for drawing in and out a circuit breaker body, a shaft link rotatably coupled to one end of the transmission shaft, a link rod having one end rotatably coupled to a portion of the shaft link, a cam plate rotatably coupled to the other end of the link rod and pushing or pulling the circuit breaker boy, and a constraint plate installed in a distribution board door, further includes a pressing part protruding from a portion of the link road, and a hook plate rotatably coupled to a side of the cradle and having one end in contact with the pressing part to receive rotational force and the other end restricting or releasing the constraint plate, wherein the hook plate releases the constraint plate in a disconnection position.

Abstract: An environmental seal is formed around a square sensor disposed beneath a circular button cap within a button assembly. The button assembly includes shelf portions each extending separately into the interior of the assembly from a sidewall of the assembly. Portions of the sidewall are exposed between the shelf portions large enough to permit the four corners of the square sensor to contact the sidewall. The button cap is set above the sensor, resting upon the shelf portions. A first sealant bonds the top faces of the shelf portions to the bottom of the button cap. A second sealant bonds the edges of the sidewall to the corners of the sensor. The second sealant interfaces with the first sealant to form a complete environmental seal.

Abstract: A push-button arrangement includes an electronic plate. The push-button is of the type surface mounted on a flexible printed circuit sheet that is itself partially fixed to the electronic plate. A portion of the flexible printed circuit sheet that carries the push-button remains free and is folded around a peripheral edge of the electronic plate, such that the push-button extends substantially perpendicularly to the electronic plate and bears against a lateral surface of the electronic plate.

Abstract: A switch device includes an operation unit, a switch unit detachably attached to the operation unit, and an engagement portion provided at the operation unit. The switch unit includes an opening-closing contact mechanism opened in association with an operation of the operation unit, and a drive portion driving the opening-closing contact mechanism to an open condition at a standby position and to a closed condition at a usage position. When the operation unit is attached to the switch unit, the engagement portion engages the drive portion to drive the drive portion from the standby position to the usage position. When the operation unit is inserted to the switch unit, the operation unit and the switch unit are engaged at the usage position.

Abstract: A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

Abstract: A key apparatus includes a housing with an opening, a printed circuit board (PCB) received in the housing, and a key mechanism. The key mechanism includes an electrode portion and a conducting portion sandwiched between the electrode portion and the PCB. The electrode portion is electrically connected to the PCB. The conducting portion is apart from the PCB. While the conducting portion connects with the connecting region, the electrode portion and the connecting region form a capacitor. The PCB generates different control signals based on different capacitances of the formed capacitors.

Abstract: The limit switch uses a rolling sprocket mounted on an offset pivot point mounted in a housing in combination with inserts into individual links of the chain. The sprocket engages the chain using spring tension on the pivot point and rolls along the chain as the chain moves with the teeth of the sprocket inserting into the chain link spaces. An insert is attached in a chain link and positioned such that when the curtain reaches the desired terminal position, the inserts are at the point where the sprocket contact the insert. The insert blocks the cog of the sprocket which pushes the sprocket away from the chain and inwardly into the interior of the housing. Inside the housing the limit switch that is activated—either by contact or other means. The activation of the kill switch stops the motor and thus the movement of the curtains.