An air cylinder includes a tubular cylinder and a piston which is moved by pressure of a fluid supplied to a chamber provided inside the cylinder. A monitoring device includes a heat flux sensor and a detection part. The heat flux sensor is provided to the cylinder and detects heat flux that flows between inside and outside of the cylinder due to compression or expansion of the fluid in the chamber caused in accordance with the movement of the piston. The detection part detects the moving state of the piston based on the output signal of the heat flux sensor.

A tailgate deactivation system. A switch includes two terminals configured to be electrically coupled to a tailgate power circuit that supplies power to at least a portion of a tailgate of a vehicle, and an actuator configured to electrically couple the two terminals in an on state to allow power to flow in the tailgate power circuit, and to electrically decouple the two terminals in an off state to inhibit power from flowing in the tailgate power circuit.

The invention relates to a switching profile (1) with a switching head (4) and a first side wing (2) and a second side wing (3), wherein a convex profile (12) and a concave profile (13) are arranged in a manner oriented towards one another in an interior (29) of the switching head (4), wherein the switching head (4) consists of a base (28), a first side flank (21) and a second side flank (22), wherein the first side flank (21) projects away from the base (28) at one end and merges into a crown (19) at the other end, wherein the second side flank (22) projects away from the base (28) at one end and likewise merges into the crown (19) at the other end.

An electrical connection assembly includes a first electrical connection module configured to be mounted on a fixed member and a second electrical connection module configured to be mounted on a moving member. The first electrical connection module has a first terminal and a second terminal. The first electrical connection module has a normally open switch. The second electrical connection module has a first contact pad and a second contact pad configured to be electrically connected with the first terminal and the second terminal, respectively. The second electrical connection module has a switch controller adapted to drive the normally open switch to a closed state when the first contact pad and the second contact pad are moved to a contact position in which the first contact pad and the second contact pad are in electrical contact with the first terminal and the second terminal, respectively.

A lifting column can provide optimized performance with a nut gap system that efficiently and precisely measures a nut gap during lifting operations. The nut gap system can have a rotating core onto which a nut and traveler are positioned. The nut can be separated from the traveler by a nut gap that is monitored by at least one sensor that continuously extends through the nut to access the nut gap.

A closing edge safety device that triggers a safety response upon contact with an obstacle. The body of the safety device is an elastically deformable profile element that encloses a switch chamber containing a switching strip that carries an electrical current. A prechamber with a switching nub is placed at the leading edge of the safety device, in front of the switch chamber. When an external force is applied to the leading edge of the safety device, the switching nub transmits the force to the switch chamber, which also deforms, causing an interruption in the electrical current on the switching strip, thereby triggering the desired safety response of the closing edge safety device. The closing edge safety device provides improved response to large-area as well as small-area contact with an obstacle and is also suitable for use as a limit switch.

The electrical switch includes three fixed contacts and a rotatable knife contact being connected with a permanent electrical connection to a third one of the fixed contacts and including at least one pair of longitudinal blades. The rotatable knife contact connects in a first switching position only a first one and a third one of the fixed contacts electrically together, and in a second switching position only a second one and a third one of the fixed contacts. The rotatable knife contact connects further in a zero switching position the first, the second and the third fixed contact electrically together.

An air cylinder includes a tubular cylinder and a piston which is moved by pressure of a fluid supplied to a chamber provided inside the cylinder. A monitoring device includes a heat flux sensor and a detection part. The heat flux sensor is provided to the cylinder and detects heat flux that flows between inside and outside of the cylinder due to compression or expansion of the fluid in the chamber caused in accordance with the movement of the piston. The detection part detects the moving state of the piston based on the output signal of the heat flux sensor.

An air cylinder includes a tubular cylinder and a piston which is moved by pressure of a fluid supplied to a chamber provided inside the cylinder. A monitoring device includes a heat flux sensor and a detection part. The heat flux sensor is provided to the cylinder and detects heat flux that flows between inside and outside of the cylinder due to compression or expansion of the fluid in the chamber caused in accordance with the movement of the piston. The detection part detects the moving state of the piston based on the output signal of the heat flux sensor.

A multifunctional switch manipulator is provided. The manipulator includes a first switch unit, which is curved to be convex at the upper surface thereof, a second switch unit, which is disposed at a first side of the first switch unit and which extends radially in a first direction, and a third switch unit, which is disposed at a second side of the first switch unit and which extends radially in a second direction opposite the first direction. Each of the second and third switch units includes a housing that has an opening and a rotary knob disposed at the housing to be rotatable in a direction in which the opening extends, and at least one surface of the rotary knob is exposed to an outside through the opening.