Patent application number | Description | Published |
20080276683 | PRESSING DEVICE - Disclosed is a pressing device for compressingly joining pipe-shaped workpieces, particularly a pipe end and a fitting mounted thereon. At least one of the workpieces is plastically deformed by several press members which are movable along a central longitudinal axis of the workpieces for performing the compression. In order to produce a pressing device with several compression jaws that are comparatively easy to mount and allow the press members to be engaged as centrally as possible during compression, at least two press members are pivotally connected to each other by means of two articulated levers embodied as angle levers for applying compression force. The angle levers pressingly lean on a (first) press member, and both angle levers are train-connected to the same (second) press member. | 11-13-2008 |
20090133591 | METHOD OF OPERATING A HYDRAULIC PRESSING UNIT, AND HYDRAULIC PRESSING UNIT HAVING A HYDRAULIC PUMP - The invention relates firstly to a method of operating a hydraulic pressing unit ( | 05-28-2009 |
20090162135 | CABLE LUG COMPRISING A NUT OR FUNCTIONAL PART, METHOD FOR THE PRODUCTION OF SUCH A CABLE LUG, AND NUT - A cable lug and a method of use is provided. The cable lug has a receiving tube section for a cable, a flat piece-connecting section that is molded on and is provided with a bore, and a nut which is captively and preferably rotatably mounted on the flat piece-connecting section. The nut does not penetrate the flat piece-connecting section while being mounted by a shaped mounting material section of the flat piece-connecting section, which extends into an undercut in the nut. The mounting material section is in the undercut with an axial clearance. The mounting material section is rooted in a lowered in a step-type manner in the flat piece-connecting section. The lowered area is rotationally symmetrical and is provided with a conical section which opens outward and vertically and encompasses at least one conical area. | 06-25-2009 |
20100229368 | METHOD FOR THE PRESSING OF A PRESS FITTING, AND PRESSING TOOL FOR THIS PURPOSE - The invention firstly relates to a method for the pressing of a press fitting ( | 09-16-2010 |
20100275672 | HYDRAULICALLY DRIVEN PRESSING DEVICE, AND METHOD OF PRESSING A FITTING - The invention relates to a hydraulically driven pressing device ( | 11-04-2010 |
20100300308 | METHOD FOR THE OPERATION OF A MOTOR-DRIVEN HAND-HELD PRESSING APPARATUS, AND HAND-HELD PRESSING APPARATUS - The invention relates to a method for operating a motor-driven hand-held pressing apparatus. In said method, once a switch has been actuated, one or more pressing jaws is/are moved from a starting position into a closed pressing position until a predefined pressing force has been reached or a given amount of time has lapsed, whereupon the pressing jaw/s is/are automatically released, e.g. using the return travel of a plunger. The releasing action can be interrupted in an intermediate position, before reaching the starting position, so as to start a subsequent pressing process from such an intermediate position. In order to be able to reach the advantage of the intermediate position without having to intervene when similar processes are carried out, a measure of the travel and/or the time and/or the pressure determined during the pressing process and associated with the intermediate position is detected or stored in order to be able to automatically interrupt the releasing action in the respective intermediate position on the basis of said measure during subsequent pressing processes. | 12-02-2010 |
20110113851 | PAIR OF PRESSING JAWS FOR HYDRAULIC OR ELECTRIC PRESSING TOOL - The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, two pressing jaws connected to one another in an articulated manner forming a pair of pressing jaws, the pressing jaws being biased into their open position by a tension spring which spans a free space between the two pressing jaws, and in each case one end of the tension spring being accommodated in an accommodating opening which opens out into a narrow peripheral side of the pressing jaw, this narrow peripheral side being directed toward the free space, and, in order to secure the tension spring, a tension-spring end engaging around a pin-like securing part, which securing part is disposed at that end of the accommodating opening which is directed away from the free space. In order to secure the tension spring in a functionally advantageous manner, it is provided that the securing part is formed as an integral crosspiece of the pressing jaw. | 05-19-2011 |
20110247506 | HAND-HELD PRESSING APPARATUS - A hydraulic pressing unit includes a hydraulic pump, supply and hydraulic chambers, moving and stationary parts, a restoring spring, and a return valve provided within or attached to a housing. The moving part is displaced from a starting position into a pressing position as a result of filling the hydraulic chamber with a hydraulic medium from the supply chamber by using the hydraulic pump. The return valve is automatically displaced into an open position as a result of a hydraulic pressure corresponding to the pressing position, and the restoring spring moves the moving part. A piston acts on the flow of the hydraulic medium and lowers the pressure such that the return valve is displaced into the closed position. | 10-13-2011 |
20120073112 | HYDRAULICALLY DRIVEN PRESSING DEVICE AND METHOD OF PRESSING A FITTING - A method of using a hydraulically driven pressing device for pressing a fitting on a tube is provided. The pressing device includes a piston and a cylinder for acting on pressing jaws. A piston shaft is connected to rollers. The pressing device can be used to carry out pressing operations requiring different levels of pressing power, by using an adjustable stop which is provided in the direction of displacement of the piston in order to achieve different end positions for the piston during the piston return stroke. | 03-29-2012 |
20120160065 | HYDRAULIC PRESS UNIT - A hydraulic press unit has a fixed part and a movable part. The movable part is moved relative to the fixed part by a hydraulic piston and is moved back into a starting position by a return spring. In addition, the return motion is actuatable as a function of a predetermined applied pressure by activation of a return valve. A control valve is provided which, in addition to the return valve, opens a hydraulic-medium outlet when in its open state and has a hydraulic-medium inflow side and a hydraulic-medium outflow side. In order to configure the hydraulic press unit, when the return valve opens, the control valve is acted on by the pressure of the returning hydraulic medium on the inflow and outflow sides, the pressure being lower on the inflow side due to throttling. | 06-28-2012 |
20130042460 | PRESSING DEVICE - A chain-like pressing device and a method of using same for press-joining a tubular or hose-shaped workpiece with a fitting and/or a ferrule is provided. The device at least two pressing members interacting over the circumference in the radial direction. The pressing members can move relative to each other in the circumferential direction at their interacting surfaces that transmit the pressing force. The interacting surfaces enclose an angle of less than 180° therebetween. The pressing device includes a plurality of pressing members forming a first linkage for enclosing the workpiece, at least one of the pressing members transmits pressing force only by pressure or tension application through a further first pressing member. | 02-21-2013 |
20130202381 | NUT AND COMBINATION OF A BOLT PART WITH A NUT - The invention relates in first instance to a nut having a first part ( | 08-08-2013 |
20130277958 | Method for the Pressing of a Press Fitting, and Pressing Tool for this Purpose - A method for the pressing of a press fitting, with a tube inserted into the press fitting, by means of a pressing tool, wherein the press fitting has an encircling bead in which an 0-sealing ring is placed, wherein the tube ends within the press fitting and a first pressing is carried out within the bead, wherein, furthermore, a further pressing is carried out on the tube-insert side of the press fitting at a distance from the bead, the further pressing leading to press fitting and tube obtaining a conicity which prevents them being pulled off and runs in the same direction. Furthermore, the invention relates to a pressing tool suitable for carrying out the method. In order to further improve a method of the type under discussion, in particular for simplifying the handling over the course of the pressing operation, and in order to improve a pressing tool of the type under discussion, in particular in terms of handling while maintaining the functional reliability of the press connection winch is to be produced, it is proposed, in terms of the method, that the head is widened axially over the course of the pressing operation by being acted upon radially from the outside. In terms of the object, it is provided that the first pressing geometry, which is assigned to the bead, leaves the bead space at least in one direction for the axial widening of the bead. | 10-24-2013 |
20140115866 | PRESSING DEVICE - A chain-like pressing device and a method of using same for press joining a tubular or hose-shaped workpiece with a fitting and/or a ferrule is provided. The device at least two pressing members interacting over the circumference in the radial direction. The pressing members can move relative to each other in the circumferential direction at their interacting surfaces that transmit the pressing force. The interacting surfaces enclose an angle of less than 180° therebetween. The pressing device includes a plurality of pressing members forming a first linkage for enclosing the workpiece, at least one of the pressing members transmits pressing force only by pressure or tension application through a further first pressing member. | 05-01-2014 |
20140123724 | HYDRAULICALLY DRIVEN PRESSING DEVICE, AND METHOD OF PRESSING A FITTING - A method of using a hydraulically driven pressing device for pressing a fitting on a tube is provided. The pressing device includes a piston and a cylinder for acting on pressing jaws. A piston shaft is connected to rollers. The pressing device can be used to carry out pressing operations requiring different levels of pressing power, by using an adjustable stop which is provided in the direction of displacement of the piston in order to achieve different end positions for the piston during the piston return stroke. | 05-08-2014 |
20140202299 | METHOD FOR MILLING A CUTOUT IN A WORKPIECE, AND WORKPIECE HAVING A CUTOUT - The invention relates to a method for milling a cutout in a piece of material, the cutout having peripheral edge portions in a corner region that meet one another at an angle, and the cutout being formed using a milling cutter which during operation occupies an enveloping surface, for example a cylindrical surface, having a lateral face and an end face, the corner region being initially formed in a first orientation of the milling cutter which preferably corresponds to a longitudinal axis of the cutout, by use of the portion of the milling cutter that generates the lateral face of the, for example cylindrical, surface. In order to provide a method for milling a cutout in a workpiece, by means of which it is also possible to form corners having the sharpest edges possible, and also in addition to provide such a workpiece, it is proposed that in addition, in a second orientation of the milling cutter, optionally while forming a bevel which on a peripheral edge portion is oriented transversely with respect to the direction of extent thereof, a corner shape that corresponds to the transition of the end face to the lateral face is formed between the mutually meeting peripheral edge portions, by use of the portion of the milling cutter that creates the end face of the enveloping surface of the, for example cylindrical, surface. | 07-24-2014 |
20140251104 | JAW PAIR FOR PUNCHING OUT HOLES - The invention relates to a jaw pair for punching out holes or recesses, preferably in sheet metal parts, the jaw pair being connectable to a device ( | 09-11-2014 |
20140287612 | CABLE LUG COMPRISING A NUT OR FUNCTIONAL PART,METHOD FOR THE PRODUCTION OF SUCH A CABLE LUG, AND NUT - A cable lug or functional part in combination with a nut is provided. The cable lug or functional part has a tubular receiving portion for a cable, an integrally formed flat part connecting portion connected to the tubular receiving portion, the flat part connecting portion having a hole therethrough defined by a wall said hole having a central axis. The nut includes a body having an undercut. The nut is held captively and rotatably on the flat part connecting portion. The nut does not pass through the flat part connecting portion is held by a reshaped holding material portion of the flat part connecting portion which projects into the undercut. The reshaped holding material portion is accommodated in the undercut, and an axial clearance is provided between the reshaped holding material and the wall which defines the hole. | 09-25-2014 |