Abstract: A keyswitch device includes a base plate, a hook, a scissors-like linkage mechanism, a keycap, and a blocking structure. The hook is located on the base plate. The scissors-like linkage mechanism is located on the base plate and includes a connection member. The connection member includes a shaft rotatably engaged with the hook. The keycap is engaged with the scissors-like linkage mechanism and configured to move relative to the base plate with the guidance of the scissors-like linkage mechanism. The blocking structure is located on the base plate. When the keycap is located at a highest position relative to the base plate, the blocking structure and a part of the connection member abut against each other.

Abstract: A switch assembly includes a switch housing defining an interior volume, and a switch actuator slidably retained within the switch housing. Travel in a first direction by the switch actuator compresses a resilient dome switch and a hard mechanical stop limits a full extent of return travel by the switch actuator within the switch housing. A resilient retention post, formed in a resilient switch pad that includes the resilient dome switch, for example, has a length terminating in a flanged tip that captures the switch actuator and thereby defines a restricted extent of return travel by the switch actuator. The restricted extent of return travel is less than the full extent of return travel, to prevent the resilient dome switch from springedly urging the switch actuator into contact with the hard mechanical stop.

Abstract: The disclosure provides a flexible pressure switch. A flexible electrode region and a flexible non-electrode region are formed on a flexible printed circuit board at the bottom layer of the flexible pressure switch, two flexible electrodes separated from each other are arranged in the flexible electrode region, a conductive elastic composite body is adhered to and located on the flexible non-electrode region through an elastic adhesion layer, a pressure contact cavity region directly facing the flexible electrode region is formed on the conductive elastic composite body, and an upper surface of the inner wall of the pressure contact cavity region can contact the two flexible electrodes simultaneously or successively so as to switch on the circuit when being pressed. The flexible pressure switch is simple in fabrication process, low in cost, stable in performance and suitable for mass production.

Abstract: A signal input device, according to one embodiment of the present invention, comprises: a base member including a bottom surface and a protruding part upwardly protruding from the bottom surface; a push button located on the upper side of the protruding part, and having a downward sidewall formed so as to cover the protruding part; a sensor unit provided on any one of an outer side surface of the protruding part or an inner side surface of the downward sidewall; and a contact point provided on the side, on which the sensor unit is not provided, of the outer side surface of the protruding part or on the inner side surface of the downward sidewall, wherein when the push button moves in a lateral direction, the sensor and the contact point come into contact with each other so as to generate a signal.

Abstract: An electric switch comprising a mechanism module and a contact module, the contact module comprising a base element, a cover element, fixed contacts and a rotary roll for receiving moving contacts, the mechanism module comprising a base element, a cover element, a front pipeshaft for controlling the switch from front, an inner pipeshaft for controlling the switch from side end, the pipeshafts being engaged to each other by teeth to form a gear for transferring a moment from the front pipeshaft to the inner pipeshaft, a lever for transferring a moment to the roll, the lever arranged to receive the inner pipeshaft, the inner pipeshaft and the lever being rotatable engaged with each other, and main springs for giving a rotational moment for the lever and being connected of first ends to the base element and the mains springs being connected to the lever of their second ends.

Abstract: A button structure includes a button and a fixing portion; wherein the fixing portion is configured for fixing the button, the fixing portion includes a first latching portion and a second latching portion, and the first latching portion includes a first latching opening, and the second latching portion includes a second latching opening, and the first latching opening has an opening direction substantially perpendicular to an opening direction of the second latching opening, and the first latching opening and the second latching opening are engaged with the button. An electronic device is also provided. The electronic device includes a housing and the button structure, the button structure is received in the housing.

Abstract: A trigger guard for a pendant for controlling a hydraulic power unit includes a first prong extending from a front side of a handle of the pendant; a second prong extending from the front side of the handle; a groove disposed between the first prong and the second prong, the groove defined by the first prong, the second prong, and the handle; a first gap disposed between the first prong and a head of the pendant; and a second gap disposed between the second prong and the head. The trigger is disposed between the first prong and the second prong such that the trigger is accessible through the groove, the first gap, and the second gap.

Abstract: A push-button with a receptacle and a cover plate, an actuating button actuatable in translation between two positions, a rest position and a pushed-in position, the cover plate being arranged at the periphery of the actuating button, a device for guiding the actuating button in translation between the two positions, and a return device for returning the actuating button from the pushed-in position toward the rest position. The guiding device include at least a pin including a bent rod shaped to have a first part pivotally mounted on a fastening unit of the actuating button and a second part pivotally mounted on a fastening unit of the cover plate, and the return device are designed to act on the pin by mechanical or magnetic effect.

Abstract: A selector for an on-load tap changer with a diverter switch includes: an insulating plate with a first side and a second side, the second side opposite the first side; a plurality of fixed contacts, which extend from the first side through the insulating plate to the second side; a first movable contact on the first side; a second movable contact on the second side; a first connection, which is connected with the first movable contact and which is connectable with a first branch of the diverter switch; and a second connection, which is connected with the second movable contact and which is connectable with a second branch of the diverter switch. Each of the first moveable contact and the second movable contact are selectably connectable with each of the fixed contacts.

Abstract: An automatic power transfer switching mechanism includes several links and a push member. The links move to rotate the push member. The push member has two push portions configured to push two power switches. The push member is rotatable about a first axis located between the two push portions so that when one of the push portion moves forwards, the other push portion moves backwards. Therefore, when one push portion moves forward to push one power switch on, the other push portion moves backwards to simultaneously push the other power switch off. The power transfer can be switched automatically without delay.

Abstract: A keyboard device includes a membrane circuit board, a base plate and a key. The key includes a keycap, a connecting element and a stabilizer bar. The connecting element is connected between the keycap and the base plate. The stabilizer bar is connected between the keycap and the connecting element. While the keycap is moved upwardly or downwardly relative to the base plate, the stabilizer bar is swung to stabilize the key. Since the stabilizer bar is connected between the keycap and the connecting element, the stabilizer bar does not readily collide with or knock on the base plate. During the process of operating the key, the generated noise is reduced. Consequently, the operating comfort to the user is enhanced.

Abstract: A silent keyboard and a key structure are provided. The key structure includes a keycap, a buffering layer, a stabilizing element and a supporting plate. The keycap includes a bottom surface and a protrusion edge. The protrusion edge is disposed on a periphery of the bottom surface. The buffering layer is disposed on the bottom surface and the protrusion edge. The buffering layer includes a flat part, a raised part and plural coupling parts. The stabilizing element is located under the keycap and pivotally coupled to the coupling parts. The supporting plate is located under the keycap. The supporting plate includes a key seat, a supporting surface and plural recesses. The plural recesses are aligned with the corresponding coupling parts. While the keycap is moved toward the supporting plate, the flat part, the raised part or the plural coupling parts are subjected to deformation.

Abstract: There is provided an operation device. An operation knob rotatable on an axial line, configured to include: a cylindrical base member extending in an axial direction; a cylindrical outer member disposed on an outer side in a radial direction of the base member; and an inner member disposed on an inner side in the radial direction of the base member. The cylindrical outer member has protruding parts extending inward in the radial direction and abutting on the inner member via through-holes formed through the base member in the radial direction.

Abstract: A waterproof switch device includes: a switch member including a body portion and a movable portion; an operated portion that is a shaft member having a distal end exposed from an opening provided in an exterior member of an electronic apparatus and a proximal end connected to the movable portion, the operated portion including a flange portion extending in a radial direction; a waterproof cover made of elastomer material; and a retaining member including an opening portion through which a part of the operated portion closer to the distal end than the flange portion can pass but the flange portion cannot pass, the retaining member being disposed farther inward from the exterior member than the waterproof cover.

Abstract: A relay terminal includes an upper conductive and lower conductive plate, each having a plate surface intersecting with the Y direction, and a coupling part that couples the upper conductive plate and the lower conductive plate to each other. The coupling part is provided on one end in the Z direction of a combination of the upper conductive plate and the lower conductive plate, such that the coupling part connects both to a middle portion in the X direction of the upper conductive plate and to a middle portion in the X direction of the lower conductive plate. First and second pairs of contact parts are formed on the plate surfaces in end sides in the X direction of the upper and lower conductive plates, each contact part having a curved surface.

Abstract: A keyboard includes a plurality of key modules. Each key module includes a baseplate, a circuit membrane disposed on the baseplate, a metal dome disposed on the circuit membrane, an elastic member disposed on the metal dome, and a keycap. The elastic member and the linkage member are configured to be a movable switch mechanism. The circuit membrane has a conductive circuit. The metal dome has an opening corresponding to the conductive circuit of the circuit membrane. A trigger portion protrudes from an underside of the elastic member. When the keycap is pressed, the trigger portion passes through the opening of the metal dome, and moves downwards to abut against the conductive circuit to induce a conducting signal. The movable switch mechanism can be made by a double injection molding method.

Abstract: A keyboard device includes a base plate and a key structure. The key structure includes a keycap, a first connecting element, a second connecting element and a stabilizer bar. The first connecting element and the second connecting element are arranged between the base plate and the keycap and connected with the base plate and the keycap. The stabilizer bar is fixed on the first connecting element and the second connecting element. Since the stabilizer bar does not collide with the base plate to generate the unpleasant noise, the keyboard device of the present invention is capable of reducing the noise. Moreover, since the stabilizer bar is fixed on the first connecting element and the second connecting element, it is not necessary to install hooks corresponding to the stabilizer bar on the keycap and the base plate and the fabricating cost is reduced.

Abstract: An interlocking device for a circuit breaker comprises a control assembly and an interlocking assembly which are connected with each other in a driving manner. The control assembly can be connected with a connecting rod assembly and a cam assembly of an energy storage operation mechanism of the circuit breaker in a latching manner, thereby controlling the energy storage operation mechanism to finish a switching-on/switching-off operation. A switching-off latch of the control assembly is connected with the connecting rod assembly, and a switching-on latch of the control assembly is connected with the cam assembly. A switching-on guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-on latch actuates, and a switching-off guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-off latch actuates.

Abstract: A capacitive switch device includes an operation panel operated by a user with a touch operation, a film member provided along a surface of the operation panel on an opposite side from a surface operated with the touch operation, and an electrode portion forming a capacitor with a finger of the user and a wiring portion, both the electrode portion and the wiring portion being provided to the film member. The film member is bonded to the operation panel by a pressure-sensitive adhesive at a predetermined first portion of the film member and supported at a second portion of the film member different from the first portion by a supporting portion which allows the film member to move due to thermal expansion and thermal contraction in an in-plane direction of the film member.

Abstract: A support element of a keypad included in a keyboard of a data input device. The support element puts at least one dummy key of a printed circuit board under pressure.