Example motor assemblies for architectural coverings are described herein. An example motor assembly includes a motor, a first switch to trigger the motor to retract an architectural covering, a second switch to trigger the motor to extend the architectural covering, and an actuator positioned to activate the first switch when the actuator is rotated in a first direction and to activate the second switch when the actuator is rotated in a second direction. Also described herein are example lever actuators for motor assemblies of architectural coverings. An example lever actuator detaches from the motor assembly to prevent excess force on the motor assembly that could otherwise detrimentally affect the motor assembly.

The electrical switch includes a first and a second fixed contact, and a rotatable knife contact including at least one pair of blades being flexibly connected to each other and rotating around a rotational axis. A third fixed contact is positioned on an opposite side of the rotational axis in relation to the adjacent first and second fixed contact and a middle portion of the rotatable knife contact is electrically connected to the third fixed contact. The rotatable knife contact connects in a first switching position the first fixed contact and in a second switching position the second fixed contact to the third fixed contact.

A switch device and a cooking device having a switch device. The switch device may include a first switch configured to be opened or closed based on contact or non-contact between a first blade and a second blade; a second switch configured to be opened and closed based on contact or non-contact between a third blade and a fourth blade; a housing that accommodates the first switch and the second switch therein; and an actuator disposed in the housing and actuated to selectively open and close the first switch and the second switch.

A switch device and a cooking device having a switch device. The switch device may include a first switch configured to be opened or closed based on contact or non-contact between a first blade and a second blade; a second switch configured to be opened and closed based on contact or non-contact between a third blade and a fourth blade; a housing that accommodates the first switch and the second switch therein; and an actuator disposed in the housing and actuated to selectively open and close the first switch and the second switch.

The invention relates to a switch for an electrical device, in particular for an electrical tool, comprising a slide control for setting a rotational speed of the electrical device, a switch housing, and at least one circuit board arranged in the switch housing for holding electrical components of the slide control. According to the invention, a movably supported operating element of the slide control is inserted into a contact chamber of the switch housing in a sealed manner through a first feed-through and is led out of the contact chamber in a sealed manner through a second feed-through in all adjustment positions of the operating element. Thus, a switch that ensures reliable function even under ambient conditions of high contamination is provided.

The invention relates to a switch for an electrical device, in particular for an electrical tool, comprising a slide control for setting a rotational speed of the electrical device, a switch housing, and at least one circuit board arranged in the switch housing for holding electrical components of the slide control. According to the invention, a movably supported operating element of the slide control is inserted into a contact chamber of the switch housing in a sealed manner through a first feed-through and is led out of the contact chamber in a sealed manner through a second feed-through in all adjustment positions of the operating element. Thus, a switch that ensures reliable function even under ambient conditions of high contamination is provided.

A change-over switch including a frame having a first side wall and a second side wall, a first supply terminal, a second supply terminal, a load terminal, and at least one gas flow opening for discharging gasses from the frame. The second side wall faces substantially opposite direction relative to the first side wall. The change-over switch is adapted to selectively provide a first connection between the first supply terminal and the load terminal, and a second connection between the second supply terminal and the load terminal. The first supply terminal and the second supply terminal project from the first side wall, and the load terminal projects from the second side wall. The at least one gas flow opening is formed in the second side wall.

A utilization unit of an electric switch includes an actuator module which includes actuators and power transmission apparatus to operate the electric switch, a power module which includes power supply means for the actuators of the actuator module, a control module which includes control means to control the power module, and data transmission means. The actuator module, the power module, and the control module constitute a modular structure, wherein the power module and the control module are detachably connected to each other and the actuator module so that the power module and the control module are both separately replaceable in the utilization unit.

The electrical switch includes a first and a second fixed contact, and a movable knife contact including at least one longitudinal pair of blades being flexibly connected to each other, wherein the blades form, in a switching event, contact with contact portions of the first and/or the second fixed contact. Opposite surfaces of the contact portions of the first and the second fixed contact include a roughened area and the inner surface of each blade includes a protruded area or opposite surfaces of the contact portions of the first and the second fixed contact include a protruded area and the inner surface of each blade includes a roughened area.

The electrical switch includes a first and a second fixed contact, and a movable knife contact including at least one longitudinal pair of blades being flexibly connected to each other, wherein the blades form, in a switching event, contact with contact portions of the first and/or the second fixed contact. Opposite surfaces of the contact portions of the first and the second fixed contact include a roughened area and the inner surface of each blade includes a protruded area or opposite surfaces of the contact portions of the first and the second fixed contact include a protruded area and the inner surface of each blade includes a roughened area.