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With mechanical force multiplier

Subclass of:

100 - Presses

100214000 - RECIPROCATING PRESS CONSTRUCTION

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
100280000 With mechanical force multiplier 16
20090301322PRESS - A press with a cylinder for the movement of a pressure element is described. The cylinder is connected to a toggle lever, wherein the toggle lever is connected to a drive and wherein the drive moves the cylinder via the toggle lever.12-10-2009
20100236430Can crusher - The can crusher is a device capable of crushing aluminum and steel cans. The device incorporates a wheeled base that supports thereon an assembly that includes a container for housing the cans and mechanisms for crushing the cans. The crushing mechanisms include a hydraulic jack, a sliding crank system, extension springs, a single-phase, geared motor, a movable plate and a pressure gauge.09-23-2010
20110290126MULTIPOINT SERVO PRESS MACHINE - The invention provides a servo press machine including a slide moved up and down by multiple crank structures, the machine which provides perfect synchronism between main gears driving the respective crank structures and in which a compact, efficient power transmission structure can be implemented in a simple construction. In the servo press machine including the slide moved up and down by the multiple crank structures, synchronous distribution gears are driven by servo motors; the multiple main gears are driven in synchronism by the synchronous distribution gears; and each of the crank structures is driven by each of the main gears.12-01-2011
100281000 Transversely forced linkage joint (single toggles here) 7
20100319554MECHANICAL PRESS FOR FINE BLANKING, FORMING AND/OR STAMPING OF WORK PIECES - A mechanical press for fine blanking, forming and/or stamping of work pieces has a machine frame provided with a head piece and an O-shaped frame, the head piece receiving in a fixed arrangement a fine blanking or forming head having an upper tool part, a ram provided in the O-shaped frame having a table top for fixing a lower tool part, the ram being actuable along a vertical stroke axis, and a toggle mechanism with a first and second side that is positioned below the ram. The toggle mechanism includes a connecting rod having a substantially equilateral triangle shape with articulation points pivotally attached to arms that pivot about a fixed bearing on the press machine and the ram, respectively, as well as around the connecting rod. Another portion of the connecting rod is attached to synchronous motors through a gear and shaft arrangement at another fixed bearing on the machine press. A computer controller adjusts the motors to equal path-time characteristics.12-23-2010
100282000 Shaft turned cam or crank and pitman 3
20080250948Hard disk destruction apparatus and method - A hard disk destruction apparatus is presented having a penetrating point that is manually pressed against a hard disk. The point has an angled tip designed to penetrate the hard disk casing and deform the hard disk platters within. The manual pressing avoids the use of any electrical power or other fuel. In one described embodiment, a mechanical arbor press provides the necessary force. A transparent safety shield surrounds the hard disk during destruction. A restraint prevents upward movement of the hard disk when the point is extracted.10-16-2008
20120180675PRESS HAVING A DIRECT-DRIVEN CRANK DRIVE - A press having at least one press frame, a table mounted therein and a tappet or ram driven by at least one crank drive for incorporating work tools or for producing work pieces by at least one production method in a tool, wherein a tool upper part is arranged on the ram and a tool lower part is arranged on the press table, wherein at least one crank shaft having at least one crank pin and at least one connecting rod is arranged as a crank drive and wherein at least one direct drive, directly driving the crank shaft, is arranged as a motor for the crank shaft drive, wherein the motor is arranged substantially adjacent to a crank pin on the crank shaft.07-19-2012
20120266766PRESS WITH A DIRECTLY DRIVEN CRANK DRIVE - A press with at least one press frame, a platen mounted therein and a ram driven by means of at least one crank drive, wherein an upper mould part is arranged on the ram and a lower mould part is arranged on the press platen, at least one crankshaft with at least one crank pin and at least one connecting rod is arranged as the crank drive, and at least one direct drive, driving the crankshaft directly, is arranged as the motor for driving the crankshaft. To provide a press in which the input-side forces of the direct drive can be passed on the output side with much less loading for the crankshaft, and at the same time the overall stiffness of the drive train is increased significantly and/or the overall length of the drive train is minimized. With at least one motor arranged within a press, at least two connecting rods on at least one crankshaft, at least one motor is arranged between the connecting rods.10-25-2012
100283000 Lever in linkage 3
100285000 Plural 3
20130008325MULTI-LINKAGE PRESS - A multi-linkage press contains a power transmission mechanism includes a rotary shaft driven by a power source; at least two eccentric wheel mechanisms including at least two eccentric wheels, each of the eccentric wheels including a crank sliding set to drive a first sliding block connected with a connecting rod; at least two multi-link mechanisms axially connected on the connecting rod and axially connected with two leveraged linkage assemblies; a sliding assembly including a slidable body with at least four longitudinal plungers, the four longitudinal plungers being axially connected with the two leveraged linkage assemblies to drive a slidable body to operate vertically, and between two of the four longitudinal plungers being connected a first connecting pillar, between another two of the four longitudinal plungers being connected a second connecting pillar, between the first connecting pillar and the second connecting pillar being coupled an axial shank.01-10-2013
20150053101PRESS DRIVE COMPRISING TWO WORKING AREAS - The invention relates to a press drive for a press or a press having a press drive. The invention also relates to a method for controlling the press drive by means of a control unit. The press drive is used for moving a ram of the press in a stroke direction H between an upper return point OT and a lower return point UT. It comprises a knee lever gear having a first lever and a second lever. A connecting rod engages on the knee lever of the two levers and is connected on the other end to an eccentric of an eccentric drive. The control unit can drive the eccentric drive in a first operating mode B02-26-2015
20160016372PRESS MACHINE - A press machine includes a press frame having first and second portions, a crankshaft, a crankshaft, a ram, a ram drive mechanism supported by the first portion of the press frame at a primary force application location, a ram guide linearly guiding the ram, and supported by the second portion of the press frame at a ram guide location; and a working tool including an upper tool section and a lower tool section configured for the processing of a workpiece. The upper tool section is fixedly attached to the ram and the lower tool section is fixedly attached to the press frame at a lower tool location. The primary force application location has a first working position during the processing of the workpiece, and a second resting position when the workpiece is not being processed. The ram guide location has a first working position during the processing of the workpiece, and a second resting position when the workpiece is not being processed. The difference between the working position and the resting position of the ram guide location is less than the difference between the working position and the resting position of the primary force application location.01-21-2016
100288000 Rack and pinion 1
20130269548SLIDE MOTION CONTROL APPARATUS FOR MECHANICAL PRESS - A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector.10-17-2013
100289000 Screw and nut 4
20090095171ELECTRIC PRESS DEVICE - An object of the present invention is to provide an electric press device which enables fixed-point working requiring accurate position control with a high accuracy for a long time by changing a structure in a publicly known document in which a differential key is moved in a straight state to a structure of circumferential movement. In an electric press device for performing fixed-point working on a work piece by vertically moving a slide plate (04-16-2009
20100224086DISPOSABLE SLEEVE - A disposable sleeve for clamping of plate-shaped elements with an abutting face for the formation of a support area, a spacer section adjoining the abutting face and positioned in axial direction of the disposable sleeve, a segment formed on the opposite side of the abutting face for the introduction of axial forces, whereby a deformation segment, located between the spacer section and segment for the introduction of axial forces, is provided and formed as a groove in the outer surface of the sleeve, and which is designed in such a way that it deforms under a defined axial load in such a way that it results in a radially outward bulge. In order to allow for high clamping force, as well as uniform material stress of the plate-shaped elements, the groove is curtailed on the side opposite the abutting face through a radially positioned first recess.09-09-2010
20130247783Spindelpresse - A screw press includes a drive with at least one spindle nut which is vertically adjustable at a threaded spindle and to which is fastened an upper press part or the like. A guide column is connected at the underside of the upper press part at one end, and the guide column is loaded in tension by the drive during the pressing process.09-26-2013
20140360388PRESS MACHINE - In a press machine vertically moving a ram by turning a threaded member, the ram has a bearing holder that holds a bearing whose outer ring is solidly engaged with the bearing holder and whose inner ring is solidly fitted to a lower end part of the threaded member. A fine clearance is formed between a lower face of the threaded member and a bottom face of the bearing holder so that the threaded member and bearing holder are allowed to rotate relative to each other. The fine clearance is set so that, when load is applied to the ram to cause a relative slight movement in a vertical direction between the inner and outer rings of the bearing, the lower face of the threaded member and the bottom face of the bearing holder come into contact with each other.12-11-2014
100291000 Cam or tapering wedge 1
20130174749STAMPING MACHINE COMPRISING A PLATEN PRESS - A stamping machine includes a platen press which has a fixed platen and an opposing moving platen effecting a reciprocating movement imparted by articulated members forming toggle joints. Each articulated member forming a toggle joint including a connecting member which collaborates with a respective cam borne by a camshaft.07-11-2013
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