Patents Assigned to ZF Lemförder
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Patent number: 7320548Abstract: A bearing shell with a spherical bearing surface for a ball and socket joint preferably for use in chassis suspensions or steering mechanisms of motor vehicles, which has essentially a joint housing and a bearing journal, which comprises a spherical surface and a pivot part and which is mounted with the spherical surface rotatably and deflectably in the spherical bearing surface of the bearing shell fixed in the joint housing, is presented, in which a filament fabric is embedded according to the present invention in the thermoplastic of the bearing shell (5, 11, 12, 13, 14, 15) at least in a partial area.Type: GrantFiled: July 19, 2004Date of Patent: January 22, 2008Assignee: ZF Lemförder Metallwaren AGInventor: Frank Budde
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Patent number: 7318686Abstract: A bearing shell for a ball and socket joint made of plastic as well as the ball and socket joint per se, wherein the bearing shell has first areas, which are subject to higher mechanical loads than the other areas of the bearing shell, wherein the material of the bearing shell forming the first areas is formed from a reinforced plastic, and the other areas are made of a less reinforced or unreinforced plastic.Type: GrantFiled: July 20, 2004Date of Patent: January 15, 2008Assignee: ZF Lemförder Metallwaren AGInventor: Frank Budde
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Patent number: 7306209Abstract: A hydraulically damping rubber bush bearing suitable for absorbing cardanic loads in the vertical installed position and yet has a simple geometry and construction. The bearing has chambers receiving the damping agent and has an undercut in the direction of the bearing axis at least in the area of one of their axial ends. An inner cage and the elastomeric bearing body are axially shortened in the corresponding circumferential section compared to the rest of their circumferential sections.Type: GrantFiled: June 28, 2005Date of Patent: December 11, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Vossel, Klaus Kramer
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Patent number: 7272988Abstract: A shift knob (1) for a gearshift lever (3) of an automatic transmission of a motor vehicle has a locking bar (5) guided axially in the gearshift lever (3) and a release button (2) which can be actuated manually for actuating the locking bar (5) in relation to the gearshift lever (3). The release button (2) is arranged in the shift knob (1) at the top end of the gearshift lever (3). The release button (2) is connected to the shift knob (1) by means of at least one lever arm (16) via a mounting site (17). The length of the lever arm (16) of the release button (2) is selected such in relation to the path traveled by the release button (2) during the actuation that the release button (2) performs an essentially linear movement.Type: GrantFiled: December 2, 2002Date of Patent: September 25, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Jörg Meyer, Klemens Meyer, Jan Szekeres-Kriselius
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Patent number: 7244074Abstract: A ball and socket joint (1) is provided, for example, for a chassis bearing, with a ball (2), a pivot (3) originating from the ball (2), a housing (4) accommodating the ball, and a sealing bellows (5), which extends between the housing (4) and the pivot (3) and has a housing-side opening (6) and a pivot-side opening (7). The sealing bellows (5) has a circumferential sealing lip (8) for sealing at the pivot-side opening (7). The ball and socket joint (1) has a first guide ring (9), which guides the sealing bellows (5). The first guide ring (9) is arranged at the pivot (3). An especially favorable functional separation is achieved as a result between the guiding function and the sealing function.Type: GrantFiled: September 29, 2004Date of Patent: July 17, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Olaf Abels, Jürgen Gräber, Jochen Kruse, Volker Grube, Dirk Lamla, Manfred Bohne, Melanie Enkler, Metin Ersoy, Achim Möll, Thomas Rösler, Wolfgang Schmitt
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Patent number: 7237978Abstract: A ball and socket joint bellows seal is provided with a ball pivot pin with a connection piece, a bellows with an annular engagement surface with a sliding ring groove and a bellows seal element. The bellows seal element has a connection piece sealing face statically engaged with said connection piece, a radially extending sealing portion and a sliding ring portion connected to said radially extending sealing portion and extending into the sliding ring groove.Type: GrantFiled: July 22, 2004Date of Patent: July 3, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Markus Fischer, Eric Holmes, Daniel Dearing
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Patent number: 7216860Abstract: A mount support of a force connection strut is provided manufactured from plastic/metal composite materials for a chassis of a motor vehicle. The force connection strut has an elongated basic body and a sleeve (H) passing through the basic body. The sleeve (H) has a flange (F) on at least one side and is connected to the basic body by extrusion coating with plastic at least at one of its ends.Type: GrantFiled: November 7, 2002Date of Patent: May 15, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Frank Budde, Stefan Schönhoff, Jochen Kruse
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Patent number: 7210370Abstract: A shifting device (4) is provided for an automatic transmission and has an additional manual shifting function. The device includes a selector lever (6), which is mounted pivotably on a gear shift lever (10) such that different, automatically shiftable gears can be preset in a first shift gate (1) and individual, manually shiftable gears can be preset in a second shift gate (2). A housing (5) is provided, in which the gear shift gate (10) is mounted with the selector lever (6) pivotably in such a way that shifting between a predetermined gear (“D”) of the first shift gate (1) and a neutral position (“M”) of the second shift gate (2) is made possible. The further shifting from the predetermined gear (“D”) of the first shift gate (1) into at least one other gear (“3”) of the first shift gate is prevented by a lock, which is overcome by the actuation of an actuating element.Type: GrantFiled: September 13, 2004Date of Patent: May 1, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Giefer, Jörg Meyer
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Patent number: 7204494Abstract: A connection of the stabilizer parts of a two-part stabilizer to an actuator is usually performed in a positive-locking manner, as a result of which an additional axial securing and hydraulic sealing toward the outside become necessary. To simplify the design and the manufacturing process, it is provided that the teeth between the outer rotary part (4) and the second stabilizer part (2) be made clearance-free and welded together by a circumferential weld seam (18), wherein the seam area is preheated to a temperature of 350° C. and subsequently cooled to a martensite content of 30% in the microstructure.Type: GrantFiled: May 19, 2004Date of Patent: April 17, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Klaus Reichel, Torsten Baustian, Winfried Krüger, Stefan Beetz, Christian Klasen, Jochen Peters
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Patent number: 7198256Abstract: A bush-type rubber mount is provided, preferably a hydraulically damping rubber mount, with a, preferably tubular, metallic inner part, an elastomeric mount body surrounding the inner part and connected to it by vulcanization. An outer sleeve accommodates the inner part. The inner part has, in an axial section, two radially outwardly extending elevations located opposite each other on its circumference and are completely embedded in the elastomer. Two elastomer recesses extend in a kidney-shaped pattern in relation to the circumference of the mount body between the elevations and pass axially through the mount body. The two elastomer recesses are arranged in the elastomeric mount body near the inner part, so that the inner part standing free in relation to the outer sleeve in the area of the kidneys is connected to the mount body essentially only via the elevations on the mount body. A defined cardanic axis extending through the apices of the elevations is formed at right angles to the axis of the mount.Type: GrantFiled: June 19, 2002Date of Patent: April 3, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Alfred Tatura, Claudia Hoping
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Patent number: 7195416Abstract: A ball-and-socket joint for motor vehicles provided, with a joint ball and a pivot pin, a housing part formed of a shaped metal tube having a top end with an opening and having an opposite end with a pivot pin opening through which the pivot pin protrudes and with a molded material molded on a portion of the housing, the molded on material forming functional surfaces on each of an inside and an outside of the housing part.Type: GrantFiled: September 18, 2003Date of Patent: March 27, 2007Assignee: ZF Lemförder Metallwaren AGInventor: Eric Holmes
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Patent number: 7195398Abstract: The present invention pertains to a bearing shell for a ball-and-socket joint, wherein the bearing shell has a core component consisting of a first material, which is completely enclosed by a jacket component consisting of a second material.Type: GrantFiled: May 10, 2004Date of Patent: March 27, 2007Assignee: ZF Lemförder Mettallwaren AGInventors: Frank Budde, Martin Rechtien
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Patent number: 7171330Abstract: A rotation and/or tilt angle detection device for a ball and socket joint is provided wherein at least one magnet (2), especially a permanent magnet, is arranged in the joint ball (1a), wherein a display device (4) displays the magnetic field of the at least one magnet (2) by means of the magnetooptic effect. An image detection deice (10) detects the information displayed by the display device (4). A data processing unit (50) calculates the relative position of the joint ball (1a) and the ball socket (3) of the ball and socket joint on the basis of the information detected.Type: GrantFiled: August 5, 2004Date of Patent: January 30, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Jochen Kruse, Joachim Spratte, Michael Klank, Oliver Hagedorn, Horst Dötsch
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Patent number: 7167085Abstract: An optical display device of a selector lever arrangement with a selector lever mounted in the motor vehicle for shifting between different shifting states of a motor vehicle transmission. The selector lever can be pivoted along at least one shift gate from a first selector lever position into at least one second selector lever position, wherein the optical display device has at least two display elements arranged in different display positions for displaying symbols unambiguously associated with the shifting states and a detection device for detecting the current shifting state. The symbol associated with the current shifting state is always displayed by the first display element during the operation of the display device.Type: GrantFiled: April 27, 2004Date of Patent: January 23, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Jörg Meyer, Andreas Giefer, Michael Völz
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Patent number: 7165909Abstract: An elastic chassis bearing in utility vehicles is provided as a joint as such for the elastic mechanical connection of two machine parts especially in the construction of vehicles, having a claw (connection part) 1 and a housing (13, 14). The claw (1) has a middle area (4) and two end areas (2). The claw is a rotationally symmetrical turned part, and the housing (13, 14) includes at least two bushes 5, 6, 7; 7, 15 inserted concentrically one into another, which together define a hollow cylinder and an intermediate space (8, 9, 16). The intermediate space is filled with an elastic material, so that the claw 1 enclosed by the innermost bush 5, 15 is cardanically movable in relation to the bush 7 or the other bushes 6, 7 of the housing 13, 14.Type: GrantFiled: February 17, 2005Date of Patent: January 23, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Manfred Buhl, Ralf Kunze
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Patent number: 7159904Abstract: An electrically adjustable steering column as it is used in motor vehicles. The present invention pertains, in particular, to a steering column that has at least two adjusting units, which are arranged on an adjusting spindle and can be moved in the axial direction of the adjusting spindle.Type: GrantFiled: March 17, 2005Date of Patent: January 9, 2007Assignee: ZF Lemförder Metallwaren ABInventors: Burkhard Schäfer, Sabine Lindhorst
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Patent number: 7159880Abstract: A connection strut of a chassis of a passenger car or utility vehicle for the connection between the chassis and the wheel carrier, preferably an axle strut or a chassis control arm, with an elongated basic body and at least two mount supports arranged at the end for introducing and leading out forces. The basic body has a composite between a flat metal insert and a plastic structure forming the rest of the contour. The plastic structure is formed by encasement of the metal insert. The rest of the contour is defined here as the difference between the final contour of the force connection strut and the portion that is formed by the metal insert.Type: GrantFiled: November 4, 2002Date of Patent: January 9, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Frank Budde, Jochen Kruse, Stefan Schönhoff
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Patent number: 7159890Abstract: A trailer hitch for a motor vehicle includes a towbar (2) having an arm (1) and a ball cup (3) provided with an opening and with a ball pivot (6). The ball pivot (6) has a ball head (4) and a pivot (5) and is mounted with the ball head (4) rotatably and pivotably in the ball cup (3) and passes through an opening (7) and juts out of the ball cup (3). An angle-measuring device having a signal transmitter (17) and two sensors (40, 41) is arranged in the joint unit formed from the ball cup (3) and the ball head (4).Type: GrantFiled: October 6, 2004Date of Patent: January 9, 2007Assignee: ZF Lemförder Metallwaren AGInventors: Scott C. Craig, Joachim Spratte
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Patent number: 7148445Abstract: A process for manufacturing a tie rod housing formed of a tie rod head (1) and a shaft element (2) fastened thereto. The tie rod head (1) receives its final shape by a mechanical machining process after the manufacture of the tie rod housing blank. The shaft element (2) and the tie rod head (1) are connected by means of a resistance pressure welding process. At least two material accumulations (8, 9), which connect the two components to one another, are brought about by a welding operation. The at least two material accumulations (8, 9) are subsequently created between the outer circumferential surface of the tie rod head (1) and of the shaft element (2).Type: GrantFiled: September 23, 2004Date of Patent: December 12, 2006Assignee: ZF Lemförder Metallwarren AGInventors: Helge Rakers, Achim Möll, Martin Wellerding
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Patent number: 7127803Abstract: A mounting device and process are provided for arranging a protective bellows on a component. The device includes a basic body, a mounting head, which is displaceable at the basic body, an adjusting device for providing an adjusting action and including an electromechanical drive and a position recognition system and gripping elements movable. The gripping elements include gripping arms and clamping fingers movable in relation to the gripping arms. The process includes bringing the gripping arms of the device into contact with the inner surface of a collar of the protective bellows and fixing the collar by the clamping fingers. The collar is expanded in preparation for the mounting and then released by loosening the clamping fingers such that the collar of the protective bellows jumps into a recess provided on the component as a consequence of its intrinsic elasticity after the necessary positioning of the protective bellows in relation to the component to be protected has been established.Type: GrantFiled: June 30, 2005Date of Patent: October 31, 2006Assignee: ZF Lemförder Metallwaren AGInventors: Hermann Schlöndorf, Michael Jürgens, Werner Wehming, Rolf Husmann