Abstract: A metal, electrically conductive tube, and electrical lines positioned in the tube for electrically powering a building, is provided. The tube includes tube sections connected by a tubular metal and electrically conductive connection part. The tube sections have end sections facing one another. The connection part extends with its inner surface facing outer surfaces of overlapping sections of the tube sections. The connection of the tube sections is achieved by plastic deformation of the connection part in the overlapping sections. A respective contact is provided between the inner surface and the outer surfaces and ensures the electrically conductive connection between the first end section, the connection part and the second end section via an indentation in the inner surface or the outer surfaces, or via fluidic contact between the outer surfaces and the inner surface.

Abstract: A method for operating a hydraulically actuated work tool having a work jaw is provided. Once an increase in force applied as a result of a hydraulic pressure has been reached, the work process does not require any further force or a maximum permissible hydraulic pressure has been reached. The hydraulic pressure is applied by a pump piston that travels through a pump path and a return path in each pump cycle. The hydraulic pressure is recorded over a time for a change from a pressure increase range to a pressure-maintaining range corresponding substantially to a specific pressure value from the pump path into the return path. At the end of a pump cycle, if the reached pressure-maintaining range exceeds a predefined pressure-maintaining range, an indication is concluded that the tool needs to be checked for a break in the work jaw.

Abstract: A metal, electrically conductive tube, and electrical lines positioned in the tube for electrically powering a building, is provided. The tube includes tube sections connected by a tubular metal and electrically conductive connection part. The tube sections have end sections facing one another. The connection part extends with its inner surface facing outer surfaces of overlapping sections of the tube sections. The connection of the tube sections is achieved by plastic deformation of the connection part in the overlapping sections. A respective contact is provided between the inner surface and the outer surfaces and ensures the electrically conductive connection between the first end section, the connection part and the second end section via an indentation in the inner surface or the outer surfaces, or via fluidic contact between the outer surfaces and the inner surface.

Abstract: A pressing tool performs a pressing operation for the press fitting of parts. One part can have different outer dimensions within a specified range. A tool part acts on the part, is a part of a pivoting jaw which has an action surface, and can be pivoted about a pivot axis from a starting position having a greatest opening width to a pressing position having a smaller opening width. A hydraulic piston movable in a hydraulic cylinder applies a piston force, depending on a hydraulic pressure in the hydraulic cylinder. A higher pressing force is in effect when a greater opening width of the pivoting jaw is provided and when the maximum piston force is reached. When any opening width that is smaller than the greater opening width is provided, a pressing force lower than the higher pressing force is in effect when the maximum piston force is reached.

Abstract: A remotely controlled hand tool includes a grip region and an actuating button. A remotely controlled tool includes a holding region and a triggering means. The hand tool or tool enables favorable remote control by a removable application part held in the grip region or holding region. The hand tool or tool is attached to an automatically movable flying vehicle by means of an attachment.

Abstract: Crimping pliers for pressing cable shoes or the like onto electrical conductors, have two crimping jaws which can be pivoted towards each other, a crimping die being mounted rotatably in each crimping jaw, the crimping die being formed with multiple different crimping depressions over a circumference in relation to a rotation axis, and a crimping die held between two jaw plates in relation to the rotation axis. The crimping dies can be shifted relative to the jaw plates into a clamping position and a release position when the crimping pliers are assembled ready for use.

Abstract: A hydraulically actuated working device having a hydraulic cylinder, a hydraulic piston that can be displaced in the hydraulic cylinder, a drive unit part which has a motor and a pump, and a hydraulic line leading to the hydraulic cylinder. The drive unit part is designed in an electrically insulating manner, to provide an electrically insulating separating layer, which passes through the working device in a crossing manner for electrical separation from the working device part with respect to an end of the hydraulic piston facing the drive unit part. The hydraulic line is guided through the separating layer, thereby also forming a partial region of the hydraulic line made of an electrically insulating material.

Abstract: An assembly including an accumulator-operated hand-held working apparatus and a functional module, and method of operating same is provided. The apparatus includes a drive, an accumulator, and a control device, which has a data storage element and a microprocessor. In response to a trigger impulse, the control device can automatically control a performance of a work process. A radio module of the functional module, which can optionally be connected to the apparatus. A connection can be established in the functional module in terms of conduction only for the power supply upon a connection to the apparatus, or can inductively be supplied with power.

Abstract: A metal, electrically conductive tube, and electrical lines positioned in the tube for electrically powering a building, is provided. The tube includes tube sections connected by a tubular metal and electrically conductive connection part. The tube sections have end sections facing one another. The connection part extends with its inner surface facing outer surfaces of overlapping sections of the tube sections. The connection of the tube sections is achieved by plastic deformation of the connection part in the overlapping sections. A respective contact is provided between the inner surface and the outer surfaces and ensures the electrically conductive connection between the first end section, the connection part and the second end section via an indentation in the inner surface or the outer surfaces, or via fluidic contact between the outer surfaces and the inner surface.

Abstract: The invention relates first to a device for applying a pressing force, comprising two pressing jaws (25, 26) which can be moved linearly relative to each other via a hydraulic piston-cylinder assembly (8). Additionally, an actuation cone (13) is provided for an expanding device (36), said cone carrying out a forward and rearward movement depending on an actuation of the hydraulic piston-cylinder assembly (8). In order to advantageously develop the device, the actuation cone (13) is connected to the hydraulic piston (9) of the hydraulic piston-cylinder assembly (8) for the forward and rearward movement. The invention further relates to a device for applying a pressing force, comprising two pressing jaws which can be moved linearly relative to each other and which can be held in receiving areas and to a pair of pressing jaws.

Abstract: The invention relates to a hydraulically actuated piston (9) guided in a cylinder (8), and to a hydraulic working tool (1) having a working head (2), wherein the piston (9) has an impact surface (15) which borders an impact space (16) on the piston side provided between the piston (9) and the cylinder (8), and wherein hydraulic fluid (17) can act on the impact surface (15) by increasing the impact space (16) in order to move the piston (9) in an impact direction (r), and the piston (9) forms a limiting device (25) for a through-flow of the hydraulic fluid (17).

Abstract: A hydraulically activated cutting tool with first and second pivoting jaws that can pivot around a shared pivot axis is provided. A blade is formed on the first pivoting jaw and a stop is formed on the second pivoting jaw. The blade has a cutting edge that runs in the direction of the pivot axis. A gripping section is formed on the second pivoting jaw and protrudes over a stop surface of the stop in the direction toward the first pivoting jaw. A method for separating an H-tap crimped connection of two cables with a cutting tool is also provided.

Abstract: A hand-held tool that is prepared for remote control has a handle region, an actuating button, and a removable attachment part held in the handle region. The attachment part has a handling extension and a collar encompassing the handle region. The collar includes first and second collar parts pivotably connected together. The attachment part acts upon the actuating button. The actuating button is displaced into an actuating position by a housing section of the collar for a duration of an arrangement of the attachment part on the handle region.

Abstract: An assembly including an accumulator-operated hand-held working apparatus and a functional module, and method of operating same is provided. The apparatus includes a drive, an accumulator, and a control device, which has a data storage element and a microprocessor. In response to a trigger impulse, the control device can automatically control a performance of a work process. A radio module of the functional module, which can optionally be connected to the apparatus. A connection can be established in the functional module in terms of conduction only for the power supply upon a connection to the apparatus, or can inductively be supplied with power.

Abstract: A method for operating a hydraulically operated hand-held device is provided. The hand-held device includes a hydraulic pump, a moving part, a fixed part and a return valve with an associated valve seat. The moving part can be displaced into a working position by a build-up of hydraulic pressure produced by filling a hydraulic chamber with hydraulic medium from a storage chamber using the hydraulic pump. The moving part can be automatically moved back from the working position into an end position by opening the return valve, if a predetermined working pressure is reached. The hydraulic pressure acting upon the return valve for triggering a movement of the moving part into the end position is increased independently of reaching the predefined working pressure.

Abstract: A tool configured to cut a workpiece includes a tool head which has a receiving contour in which the workpiece is received, and a movable cutting edge with a cutting contour. In the course of a cutting process, the cutting edge passes through the receiving contour. The cutting edge is subjected to the effect of an advancement part and can be moved to such an extent in the cutting direction(s) that it can pass all the way through the workpiece. In an embodiment, a position of the cutting edge reached after the cutting edge has passed all the way through the workpiece, the cutting edge, with removal from the advancement part, can be moved out from the cutting direction(s).

Abstract: A method of operating a hydraulically or electric motor operated tool includes providing a device shaft having electrical contacts; providing an accumulator having an adapter comprising a wall thereon; latching the adapter to the device shaft by a latching part; and engaging a tool with the latching part thereby detaching the adapter from the device shaft, whereupon during engagement of the tool with the latching part, the wall of the adapter is destroyed. When the device shaft and adapter are engaged, walls of the device shaft and adapter form an internal cavity and the latching part is positioned entirely therewithin such that the latching part is completely hidden from view. A hydraulically or electric motor operated tool is also disclosed.

Abstract: A hydraulically operated handheld device and a method of operating same are provided. The device includes a hydraulic pump, a moving part, a fixed part and a return valve with an associated valve seat. The moving part is moved into a working position due to the buildup of a hydraulic pressure by filling a hydraulic chamber with hydraulic medium from a reservoir with the aid of the hydraulic pump. The moving part can be automatically moved back from the working position into an end position upon reaching a predefined working pressure by opening the return valve. The hydraulic pressure acting upon the return valve is increased by a separately triggerable pressure increase, which results in opening of the return valve, in a hydraulic medium volume located upstream of the return valve in a flow direction of the hydraulic medium during the movement into the end position.

Abstract: A method of operating a motor-actuated handheld pressing unit includes actuating a switch to initiate a pressing operation whereby one or more pressing jaws are moved from a starting position to a closed pressing position; automatically releasing the one or more pressing jaws by using a pressing piston when a prescribed pressing force has been reached, the pressing piston being actuated hydraulically by a hydraulic medium; and checking the reaching of the prescribed pressing force by using a pressure sensor to detect the pressure of the hydraulic medium. In an embodiment, the release of the pressing jaws may be interrupted. In an embodiment, a motor moves the jaws from the starting position to the closed pressing position. In an embodiment, the pressing force is continuously measured on intervals of less than one second.