A rail support system includes a clamp side having a channel with a first side and a second side, the first side and second side to engage around a post; an extension extending away from the second side; a plate engaged with the extension; a tightening screw engaged with the plate and further engaged with the first side; tightening the tightening screw pulls the first side and the second side together; a cradle side having an arm attached to the channel and extending away therefrom; and a cradle support attached to and extending away from the arm; the cradle support is to receive a rail; the clamp side is to secure to post while the cradle side is configured to engage with the rail such that the post and the rail are held in position for welding together.

A clamping device for clamping an insertion nipple (7), including a clamping element (11) which can be axially moved, by a drive motor (9) via a screw mechanism (13), between an open position in which the insertion nipple (7) can be introduced into a receiving opening (8) of the clamping device and withdrawn from the same, and a clamping position in which the insertion nipple (7) introduced into the receiving opening (8) is retained in the same. The clamping device has an impulse unit (12) with a rotary part (40) which is mechanically coupled to the rotor (31) of the drive motor (9), and by which, for each revolution, a rotary impulse can be transmitted, at least once, to an impulse-receiving part (41) of the impulse unit (12) via the screw mechanism (13), in order to axially move the clamping element (11).

A clamping device for clamping an insertion nipple (7), including a clamping element (11) which can be axially moved, by a drive motor (9) via a screw mechanism (13), between an open position in which the insertion nipple (7) can be introduced into a receiving opening (8) of the clamping device and withdrawn from the same, and a clamping position in which the insertion nipple (7) introduced into the receiving opening (8) is retained in the same. The clamping device has an impulse unit (12) with a rotary part (40) which is mechanically coupled to the rotor (31) of the drive motor (9), and by which, for each revolution, a rotary impulse can be transmitted, at least once, to an impulse-receiving part (41) of the impulse unit (12) via the screw mechanism (13), in order to axially move the clamping element (11).

The invention relates to a functional unit for attachment to a workpiece, in particular to a sheet metal part, said functional unit comprising a fastening element having a fastening section for the rotationally fixed fastening of the functional unit to the workpiece and having a head part that adjoins the fastening section in an axial direction and that has a functional section and a head part support surface remote from the fastening section; and a fixing element that can be fixed to the functional section of the head part of the fastening element by means of a rotational movement and that has a fixing element support surface that, in a state of the fixing element installed at the fastening element, faces the head part support surface such that an attachment part can be clamped between the head part support surface and the fixing element support surface.

The invention relates to a functional unit for attachment to a workpiece, in particular to a sheet metal part, said functional unit comprising a fastening element having a fastening section for the rotationally fixed fastening of the functional unit to the workpiece and having a head part that adjoins the fastening section in an axial direction and that has a functional section and a head part support surface remote from the fastening section; and a fixing element that can be fixed to the functional section of the head part of the fastening element by means of a rotational movement and that has a fixing element support surface that, in a state of the fixing element installed at the fastening element, faces the head part support surface such that an attachment part can be clamped between the head part support surface and the fixing element support surface.

A tool or workpiece holder with a receiving body and a clamping device for clamping a tool or a workpiece in a receiving opening of the receiving body. The clamping device comprises a first clamping element, which can be moved in a receiving portion of the receiving body at right angles to a central axis of the receiving opening, and a second clamping element, which can be moved relative to the first clamping element at right angles to the central axis of the receiving opening by means of an actuating element. The second clamping element has conical bottom clamping surfaces on the two clamping elements for inserting the tool or workpiece into the receiving opening. An ejecting mechanism is disposed on the first clamping element for ejecting the tool or workpiece from the receiving opening when the clamping elements are moved into a disengaged position.

A tool or workpiece holder with a receiving body and a clamping device for clamping a tool or a workpiece in a receiving opening of the receiving body. The clamping device comprises a first clamping element, which can be moved in a receiving portion of the receiving body at right angles to a central axis of the receiving opening, and a second clamping element, which can be moved relative to the first clamping element at right angles to the central axis of the receiving opening by means of an actuating element. The second clamping element has conical bottom clamping surfaces on the two clamping elements for inserting the tool or workpiece into the receiving opening. An ejecting mechanism is disposed on the first clamping element for ejecting the tool or workpiece from the receiving opening when the clamping elements are moved into a disengaged position.

The present disclosure is related to a hold-down for a cable tray. The hold-down may be configured for high-wind situations. The hold-down includes a support clamp for clamping onto a support, and a hold-down arm for holding the cable tray on the support.

The present disclosure is related to a hold-down for a cable tray. The hold-down may be configured for high-wind situations. The hold-down includes a support clamp for clamping onto a support, and a hold-down arm for holding the cable tray on the support.

A retrievable shaft locking mechanism for axial and rotational locking on smooth round shafts with a lever providing tensioning of the clamping ring and vectorially supporting a clamping action through a horizontal dowel pin.