Patents Assigned to Rexroth Star GmbH
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Patent number: 8033580Abstract: A device (30) for feeding working fluid to an assembly (14) requiring working fluid includes at least one fluid channel (20, 20a-20d) extending from a surface (16a) and at least one screw element (22, 24) capable of being screwed from the surface (16a) into the at least one fluid channel (20, 20a-20d) for feeding working fluid into the fluid channel (20, 20a-20d) or for closing the fluid channel (20, 20a-20d), the at least one fluid channel (20, 20a-20d) having a first section (32) directly adjacent to the surface (16a) with a larger width, a second section (36) with a smaller width and, between the first section (32) and the second section (36), having a first transition region (34) with an annular surface (34a), and the screw element (22, 24) having at least one sealing surface (22c, 24c) capable of being brought into sealing engagement with the annular surface (34a).Type: GrantFiled: June 15, 2010Date of Patent: October 11, 2011Assignee: Rexroth Star GmbHInventors: Stefan Dorn, Alfred Haub, Andreas Schupies
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Patent number: 7798716Abstract: A linear device has an essentially rod-shaped functional unit and a functional unit that at least partially encompasses the rod-shaped functional unit and includes a main body and at least one end plate unit that rests with a contact surface against the main body in which a lubrication groove is provided, which is open toward the contact surface and extends at least partially in the circumference direction around the rod-shaped functional unit, and it is possible to fasten the end plate unit to the main body by only two fastening elements, and a region of the contact surface adjacent to the lubrication groove and encompassing this lubrication groove is raised in relation to the rest of the contact surface.Type: GrantFiled: July 27, 2005Date of Patent: September 21, 2010Assignee: Rexroth Star GmbHInventor: Alfred Haub
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Patent number: 7766395Abstract: A device (30) for feeding working fluid to an assembly (14) requiring working fluid includes at least one fluid channel (20, 20a-20d) extending from a surface (16a) and at least one screw element (22, 24) capable of being screwed from the surface (16a) into the at least one fluid channel (20, 20a-20d) for feeding working fluid into the fluid channel (20, 20a-20d) or for closing the fluid channel (20, 20a-20d), the at least one fluid channel (20, 20a-20d) having a first section (32) directly adjacent to the surface (16a) with a larger width, a second section (36) with a smaller width and, between the first section (32) and the second section (36), having a first transition region (34) with an annular surface (34a), and the screw element (22, 24) having at least one sealing surface (22c, 24c) capable of being brought into sealing engagement with the annular surface (34a).Type: GrantFiled: October 27, 2005Date of Patent: August 3, 2010Assignee: Rexroth Star GmbHInventors: Stefan Dorn, Alfred Haub, Andreas Schupies
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Patent number: 7758244Abstract: A linear guide unit, in particular a gantry axis, that has an oblong guide support (14), is provided with two essentially parallel guide rails (24, 26) extending in the guide direction (F), but rotated in relation to each other around a rotation axis (V) parallel to the guide direction (F), each of which guide rails (24, 26) has at least one sliding carriage (36, 38) guided on it so that it can slide in the guide direction (F), the sliding carriages (36, 38) being connected to a sliding carriage assembly (36, 38) capable of moving as a unit in the guide direction (F). According to the present invention, the two guide rails (24, 26) rest essentially without moving play against at least two counterpart support surfaces (GF24, GF24L, GF24R, GF26, GF26L, GF26R) of the guide support (14) extending essentially in the guide direction (F), two of the counterpart support surfaces (GF24, GF24L, GF24R, GF26, GF26L, GF26R) enclosing a predetermined angle, preferably of at most 90°, between them.Type: GrantFiled: March 13, 2007Date of Patent: July 20, 2010Assignee: Rexroth Star GmbHInventor: Siegfried Bauer
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Patent number: 7681470Abstract: In a threaded drive having a load-bearing nut and a catch nut, for securing against a load-bearing nut, the catch nut is urged by a spring against an axial bearing face of the load-bearing nut.Type: GrantFiled: November 17, 2005Date of Patent: March 23, 2010Assignee: Rexroth Star GmbHInventor: Harald Maiss
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Patent number: 7476032Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).Type: GrantFiled: July 25, 2007Date of Patent: January 13, 2009Assignee: Rexroth Star GmbHInventors: Wolfgang Kuellstaedt, Richard Kuehnlein, Thomas Wahler, Roland Greubel, German Duetsch, Werner Keller, Stefan Dorn, Steven Worcester, Werner Blaurock
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Patent number: 7458292Abstract: A threaded drive has a threaded spindle having a longitudinal axis, a supporting nut which is in a screw engagement with the threaded spindle with a first clearance and which is rotatable relative to the threaded spindle about the longitudinal axis, a catch nut which is in a screw engagement with the threaded spindle with a second predetermined clearance which is greater than the first predetermined clearance, the catch nut being freely rotatable relative to the supporting nut, and also being bringable in a clamping engagement with the supporting nut and fixable on the supporting nut in any desired relative rotary position.Type: GrantFiled: October 8, 2004Date of Patent: December 2, 2008Assignee: Rexroth Star GmbHInventor: Michael Scholz
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Patent number: 7441956Abstract: A linear guide/feed module has a tubular boom movable along a movement axis, a housing encompassing the tubular boom so that the boom is travelable out of and into the housing along the movement axis, a drive unit for driving the boom to move in relation to the housing, at least two recirculating rolling element rows supporting the boom in the housing for its movement in relation to the housing along the movement axis and spaced apart from each other in a circumference direction around the movement axis, with each of the recirculating rolling element rows having a force-loaded rolling element carrying segment extending essentially in a direction of the movement axis and an essentially unloaded rolling element return segment, and a guide body encompassing the boom at least in segments in the circumferential direction, provided in the housing and having rolling element passages of the rolling element return segments formed into it as well as raceways on a housing side of the rolling element carrying segments ofType: GrantFiled: October 24, 2005Date of Patent: October 28, 2008Assignee: Rexroth Star GmbHInventors: Berthold Koeniger, Gerd Spatschek, Josef Dirschbacher
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Patent number: 7431510Abstract: A pivot bearing has a radially inner bearing part; a radially outer bearing part, each of the parts defining a conduit for permiting a lubricant to pass through, the radially inner bearing part being supported in a rotary fashion on the radially outer bearing part, a transmission element that communicates the conduits of the parts to permit a lubricant to pass through; and a check valve dividing the conduits into a radially inner conduit system and a radially outer conduit system.Type: GrantFiled: September 6, 2005Date of Patent: October 7, 2008Assignee: Rexroth Star GmbHInventor: Andre Schott
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Patent number: 7387694Abstract: The method of making a hardened steel part or component includes making a semi-finished article of air-hardened steel; cold-forming the semi-finished article into a finished-shape part or component with a desired or predetermined finished shape and then hardening the finished-shape part or component with the finished shape by a heat treating process. The air-hardened steel particularly preferably contains about 0.67% by weight carbon, about 1.50 % by weight silicon, about 1.50% by weight manganese, about 1.00% by weight chromium, about 0.10% by weight nickel, about 0.25% by weight molybdenum, and a balance or remaining portion of iron with standard impurities.Type: GrantFiled: October 7, 2003Date of Patent: June 17, 2008Assignee: Rexroth Star GmbHInventors: Norbert Siebenlist, Walter Krauss
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Patent number: 7300208Abstract: A guide rail (12) of a linear guide unit (10) is provided with at least one running rail (16), which has at least two races (16a) that have different load transmission directions. According to the present invention, the running rail (16) is attached to the guide rail (12) by means of roller insertion; in the surface sections (12a) associated with the races (16a) of the running rail (16), the guide rail (12) is provided with a plurality supporting ribs (12a1); and the supporting ribs (12a1) associated with one and the same race (16a) are aligned essentially parallel to the load transmission direction (B) of this race (16a). In addition or alternatively, in a section (12d) that is not intrinsically deformed by the roller insertion of the at least one running rail (16), the guide rail (12) has at least one additional rolled section. The present invention also relates to a method for manufacturing guide rails of this kind (12).Type: GrantFiled: April 15, 2005Date of Patent: November 27, 2007Assignee: Rexroth Star GmbHInventors: Wolfgang Kuellstaedt, Richard Kuehnlein, Thomas Wahler, Roland Greubel, German Duetsch, Werner Keller, Stefan Dorn, Steven Worcester, Werner Blaurock
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Patent number: 7241047Abstract: A linear guide unit, in particular a gantry axis, that has an oblong guide support (14), is provided with two essentially parallel guide rails (24, 26) extending in the guide direction (F), but rotated in relation to each other around a rotation axis (V) parallel to the guide direction (F), each of which guide rails (24, 26) has at least one sliding carriage (36, 38) guided on it so that it can slide in the guide direction (F), the sliding carriages (36, 38) being connected to a sliding carriage assembly (36, 38) capable of moving as a unit in the guide direction (F). According to the present invention, the two guide rails (24, 26) rest essentially without moving play against at least two counterpart support surfaces (GF24, GF24L, GF24R, GF26, GF26L, GF26R) of the guide support (14) extending essentially in the guide direction (F), two of the counterpart support surfaces (GF24, GF24L, GF24R, GF26, GF26L, GF26R) enclosing a predetermined angle, preferably of at most 90°, between them.Type: GrantFiled: May 26, 2005Date of Patent: July 10, 2007Assignee: Rexroth Star GmbHInventor: Siegfried Bauer
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Patent number: 7241048Abstract: A linear guide device has a guide rail extending in a guiding direction, a guide carriage guided on the guide rail by at least one roll body revolving mechanism in the guiding direction. The at least one roll body revolving mechanism includes a revolving passage and a plurality of roll bodies which revolve in the revolving passage. The revolving passage has a running passage which is limited by a roll body running path formed on the guide rail and by a load-receiving wall portion of the guide car a return passage, and two deviating passages which connect the running passage with the return passage and in which the roll bodies are substantially load free. The guide carriage has a base unit and at least one revolving component group, the revolving component group having at least one lower wall portion of a wall which limits the return passage and at least one lower wall portion of a wall which limits the deviating passages.Type: GrantFiled: August 11, 2003Date of Patent: July 10, 2007Assignee: Rexroth Star GmbHInventors: Werner Keller, German Duetsch, Roland Greubel
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Patent number: 7237448Abstract: In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangement to an object to be guided, a cover element arranged between movement tracks of the connection part and covering the longitudinal opening, in accordance with the present invention forwardly of and/or rearwardly of the wagon arrangement, at least one support unit is arranged displaceably in direction of the longitudinal axis for supporting the cover element relative to the guide housing; also additionally or alternatively the support unit can support the cover element relative to the wagon arrangement.Type: GrantFiled: April 20, 2006Date of Patent: July 3, 2007Assignee: Rexroth Star GmbHInventor: Siegfried Bauer
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Patent number: 7222735Abstract: A packaging (10) for a component (12) can be attached by means of at least one attachment element (14) to a mounting surface of a superordinate component, whereby the component (12) has an upper surface (12a), a bottom surface (12b) and at least one mounting (12c) for the at least one attachment element (14) continuous from the upper surface (12a) to the bottom surface (12b). The packaging (10) is at least partially substantially rigidly formed and the at least one attachment element (14) inserted in the at least one mounting (12c) is maintained in a position in a positive-locking (form-locking) manner, in which it does not project over the bottom surface (12b) of the component. For packaging of the component (12) into the packaging (10), advantageously an auxiliary element is used.Type: GrantFiled: March 1, 2004Date of Patent: May 29, 2007Assignee: Rexroth Star GmbHInventor: Roland Greubel
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Patent number: 7213971Abstract: A linear roller bearing has a guide rail extending in a longitudinal direction; a guide carriage which is guided longitudinally displaceably on the guide rail; at least two revolving rows of roller bodies, by means of which the guide carriage is guided on the guide rail, a plurality of endless revolution conduits each formed by a load-bearing conduit and a return conduit that extends in the guide carriage, each of the rows of roller bodies being received in the endless revolution conduit; a track provided on the guide rail and a track provided on the guide carriage, which tracks define the load-bearing conduit; and a portion provided on an inner circumferential surface of each return conduit and being movable relative to the track of the guide carriage.Type: GrantFiled: May 23, 2005Date of Patent: May 8, 2007Assignee: Rexroth Star GmbHInventor: Stefan Dorn
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Patent number: 7096595Abstract: A guide with a measuring device has a guide base with a longitudinal axis, a runner guided on the guide base in a direction of the longitudinal axis, a measuring device which measures a position of the runner in the direction of the longitudinal axis of the guide base or a condition of the guide base and having a measuring head arranged on the runner and connectable with an evaluating circuit for sensing the measuring guide, and an adapter plate arranged between the measuring head and the runner.Type: GrantFiled: September 27, 2004Date of Patent: August 29, 2006Assignee: Rexroth Star GmbHInventor: Roland Greubel
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Patent number: 7070041Abstract: A linear guide unit has an elongated guide housing having a longitudinal axis and having walls bordering a guide cavity, with two side walls form a longitudinal opening of the guide cavity, a slider that is movably guided in the direction of the longitudinal axis on at least one guide track provided in the guide cavity and connectable with a unit to be moved by the linear guide unit through the longitudinal opening, a drive device for moving the slider in the direction of the longitudinal axis, a profiled channel attachable to the guide housing for housing functional elements, with the positive connection is additionally secured by frictional engagement or by snapping into place, wherein the profiled channel has at least one lateral mounting projection and is in holding contact via this mounting projection with the exposed end of a side wall or a part joined therewith.Type: GrantFiled: August 18, 2000Date of Patent: July 4, 2006Assignee: Rexroth Star GmbHInventors: Josef Dirschbacher, Stefan Dorn, Roland Greubel, Roland Hoherz
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Patent number: 7062985Abstract: In a linear guide unit that has an elongated guide housing which limits a guide hollow space with a longitudinal opening, a wagon arrangement which is displaceably guided in the guide hollow space on guide rails, a connection part for connecting the wagon arrangement to an object to be guided, a cover element arranged between movement tracks of the connection part and covering the longitudinal opening, in accordance with the present invention forwardly of and/or rearwardly of the wagon arrangement, at least one support unit is arranged displaceably in direction of the longitudinal axis for supporting the cover element relative to the guide housing; also additionally or alternatively the support unit can support the cover element relative to the wagon arrangement.Type: GrantFiled: January 23, 2003Date of Patent: June 20, 2006Assignee: Rexroth Star GmbHInventor: Siegfried Bauer
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Patent number: 7044643Abstract: A rotary bearing has a first lubricant passage having one end which opens in an inner peripheral surface of a radially outer bearing part and another end which is connectable with a lubricant supply, at least one second lubricant passage which leads from an outer peripheral surface of a radially inner bearing part to an inner peripheral surface of the radially inner bearing part, and a ring chamber between the outer bearing part and the inner bearing part, in which the first lubricant passage and the second lubricant passage open the ring chamber, and a lubricant distributing element formed as a separate part arranged on the ring chamber, and is in a lubricant supplying connection with at least one lubricant passage, and outflow paths including a first outflow path for supplying lubricant to the engaging surfaces of the bearing parts, and a second outflow path for supplying lubricant through the second lubricant passage to a further lubricating point.Type: GrantFiled: October 9, 2003Date of Patent: May 16, 2006Assignee: Rexroth Star GmbHInventor: Roland Greubel