Patents Assigned to ZF Lemförder
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Patent number: 6662924Abstract: A shifting device for a powerless or non mechanical transmission of shift commands to an automatic transmission of a motor vehicle includes a shift gate, a gearshift lever mounted pivotably with respect to the shift gate, a detection device for detecting the position of said gearshift lever, and a powerless or non mechanical i.e., by wire) signal transmission device for transmitting shift commands to the automatic transmission. The detection device and/or the transmission device are operated at least partially electrically/electromagnetically. A brake unlocking device is provided for unlocking the parking brake of the automatic transmission. The brake unlocking device includes a mechanical coupling between said gearshift lever and said automatic transmission.Type: GrantFiled: October 5, 2001Date of Patent: December 16, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Giefer, Jörg Meyer
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Patent number: 6659437Abstract: A rubber bearing, preferably a simple rubber bearing, is provided with an essentially cylindrical inner part (1), a tubular outer sleeve (2) coaxially surrounding the inner part (1), as well as a pressure body, which is an elastomer (3). The elastomer (3) is arranged between the inner part (1) and the outer sleeve (2) and is connected to same by vulcanization. Two free grooves (4, 4′) extend, beginning from the axial ends of the bearing, into the interior of the bearing in the axial direction over a complete circle around the bearing axis (5). The axial distance of the free grooves (4, 4′) from the bearing axis (5) and/or whose width continuously changes cyclically, wherein there is a phase shift between the two free grooves (4, 4′) in terms of their course, which is determined by the change in the radial distance from the bearing axis (5) and/or the width and which course preferably follows the same cycle.Type: GrantFiled: October 3, 2001Date of Patent: December 9, 2003Assignee: ZF Lemförder Metallwaren AGInventor: Alfred Tatura
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Patent number: 6651965Abstract: A rubber bearing with axial damping includes a multipart bearing inner part (1), an elastomer (9, 9′), which surrounds the bearing inner part (1) in some sections and is connected thereto by vulcanization, chambers (5, 5′) for accommodating a damping agent, a channel carrier (11) with at least one damping agent channel (12), which makes possible the circulation of the damping agent between the chambers (5, 6, 7), as well as an essentially cylindrical bearing sleeve (10), which accommodates the above-mentioned bearing parts. The bearing inner part (1) has a section (2, 3) of increased diameter compared with a middle area (4) of the bearing inner part (1) at the respective axial ends of the bearing. A channel carrier (11) with chambers 5, 5′ for the damping agent is arranged between the sections (2, 3) of increased diameter of the bearing inner part (1).Type: GrantFiled: June 5, 2001Date of Patent: November 25, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Vossel, Frank Meyerink
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Patent number: 6644634Abstract: A controllable hydraulic bearing, especially for motor vehicles, with a working chamber and an equalizing chamber arranged annularly around the working chamber. The chambers are filled with an electrorheological fluid and are connected to one another via an annular gap-like overflow channel. The overflow channel has two mutually opposite electrodes for generating a high-voltage field in the overflow channel. The overflow channel (8) extends helically in its longitudinal extension around the said working chamber (1) between the working chamber (1) and the equalizing chamber. The wall of the overflow chamber (8) comprises an electrically insulating carrier layer provided on both sides with conductive cover layers forming electrodes.Type: GrantFiled: February 13, 2002Date of Patent: November 11, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Metin Ersoy, Frank Meyerink
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Patent number: 6637762Abstract: An axle suspension for rigid axles of vehicles, especially air-cushioned utility vehicles includes a twistable fur-point connecting rod (4) connected above the vehicle axle (3) to the (vehicle axle (3). The twistable four-point connect rod (4) is connected to the vehicle chassis (1a, 1b, 2a, 2b) via two said joints (5, 6, 7, 8) each, which are arranged at spaced locations from one another in the longitudial direction of the vehicle. At least one spring assembly unit (19, 20) per vehicle side is located for spring suspension between the vehicle axle (3) and the vehicle chassis (1a, 1b, 2a, 2b). An axle strut (21) for axle guiding, extends approximately in the middle of the vehicle in the longitudinal direction of the vehicle and connects the vehicle axle (3) to the vehicle chassis (1a, 1b, 2a, 2b) in a vertically movable manner.Type: GrantFiled: August 15, 2001Date of Patent: October 28, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Holger Bublies, Reinhard Buhl, Uwe Cossmann, Reinhard Richter, Werner Schmudde
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Patent number: 6615684Abstract: A brake pedal mechanism (4) for motor vehicles with a pedal block(5), which is fastened to the body of the motor vehicle and accommodates a mount (18) for the pivot axis (17) of a rotatably mounted actuating pedal (6). The pedal (6) is provided with a pedal surface (9), wherein an actuating element (7) is articulated to the actuating pedal (6) for a brake power booster (1) with a main brake cylinder (2). The pivot axis (17) mounted on the pedal block (5) is arranged on the actuating pedal (6) between the pedal surface (9) and the articulation point (8) of the actuating element (7).Type: GrantFiled: February 16, 2001Date of Patent: September 9, 2003Assignee: ZF Lemförder Metallwaren AGInventor: Metin Ersoy
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Patent number: 6601469Abstract: A shifting device with a gearshift lever for an automatic transmission of a motor vehicle is provided with an unlocking mechanism for unlocking the gearshift lever with a manual actuating element. The gearshift lever can be moved, in at least one shift gate, between two different shift positions and can be locked at least partially in these shift positions as a function of different vehicle configurations. A spring-tensioned force transmission element is provided in the unlocking mechanism.Type: GrantFiled: June 6, 2001Date of Patent: August 5, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Giefer, Jörg Meyer
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Patent number: 6598494Abstract: A shifting device of a motor vehicle automatic transmission has a selector lever (3) and a kinematics (4-9) for transmitting the selection movements to an automatic transmission. The selector lever (3) can be moved around a first shift axis (7) in an automatic shift gate AG for selecting automatic gears and around a second shift axis (8) in a sequence shift gate SG1, SG2 for manually upshifting and downshifting gears. A central carrier (6) is pivotable around a selector axis (9). An inner bridge (4) is mounted pivotably on the central carrier (6) and is pivotable around the first shift axis (7) extending essentially at right angles to the selector axis (9). An outer bridge (5) is mounted on the inner bridge (4) in the sequence shift gate pivotably around the second shift axis (8) and is connected to the selector lever (3). The shift selector for selecting the shift axes by a pivoting movement of the selector lever (3) is indirectly or directly fastened to the central carrier (6).Type: GrantFiled: April 9, 2001Date of Patent: July 29, 2003Assignee: ZF Lemförder Metallwaren AGInventor: Andreas Giefer
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Patent number: 6592284Abstract: A process for manufacturing a low-friction ball-and-socket joint is provided in which a ball pivot with a pivot area and with a joint ball made in one piece therewith is first introduced into a bearing shell (2, 2.1, 2.2) and the latter is in turn introduced through an opening (4) into a joint housing (5), wherein the opening (4) of the housing (3) is closed by a housing cover (5) after the introduction of the components. The pivot area (1.1) of the ball pivot (1) is then introduced into a recording device of a torque measuring device to determine the torque of the joint between the bearing shells (2.1,2.2) and the joint ball (1.2). The housing cover (5) is then permanently fixed by a rolling device (10) by bending over a rolled edge (9) of the housing arranged on the housing (3). The torque of the joint is continuously measured during the rolling operation and is compared with a presettable set point. The housing cover (5) displaces the upper bearing shell (2.Type: GrantFiled: July 18, 2001Date of Patent: July 15, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Martin Rechtien, Martin Wellerding
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Patent number: 6579025Abstract: A steering tie rod for motor vehicles with a pipe, which is provided with an internal thread in a first direction of rotation on at least one side and is slotted at least in some areas, is presented, into which an adjusting sleeve is screwed at its end, where a ball-and-socket joint housing shaft of a ball-and-socket joint present at the end of the steering tie rod is screwed into the internal thread of the adjusting sleeve, which latter internal thread has a second direction of rotation opposite the first direction of rotation. An axial adjusting movement of the pipe relative to the ball-and-socket joint is made possible by a wrench contact surface made in one piece with the adjusting sleeve. The adjusting sleeve (1) has at least one recessed slot (2) and a collar band (4), which is fixed on the outer jacket surface of the pipe (3) and fixes the components in their position in relation to one another.Type: GrantFiled: October 23, 2000Date of Patent: June 17, 2003Assignee: ZF Lemförder Metallwaren AgInventors: Dirk Sokolihs, Norbert Schmudde, Herbert Holle
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Patent number: 6554374Abstract: A motor vehicle tandem brake power booster with two booster units each including a vacuum chamber and a working chamber each arranged in a partition divided housing. The pressure difference between the pressure in the vacuum chamber and the pressure that can be influenced by a switching device in the corresponding working chamber in each booster unit acts on a piston separating the vacuum chamber from the working chamber. The forces, which are proportional to the pressure difference and act on the pistons are bundled via mechanical intermediate members by at least one transmission element each with the forces applied by the driver of the vehicle to a corresponding brake pedal.Type: GrantFiled: January 11, 2001Date of Patent: April 29, 2003Assignee: ZF Lemförder Metallwaren AGInventor: Metin Ersoy
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Patent number: 6553864Abstract: An actuating pedal (1) for the brake system of a road vehicle has a fastening device (6) for fixing the actuating pedal (1) in a pivot bearing (12) on a pedal block (7) of the vehicle. The pedal block is a rigid part of the body, with a pedal body (2) and with an actuating surface (3). The pedal body (2) has at least one inner metal core (8) and a plastic jacketing (9) surrounding the metal core (8).Type: GrantFiled: January 10, 2001Date of Patent: April 29, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Metin Ersoy, Waldemar Rogowski, Keit Wagener
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Patent number: 6554525Abstract: A radial ball-and-socket joint is provided with a housing. A bearing shell (2) in the housing rotatably and tiltably accommodates a joint ball (4). The joint ball is part of a ball pivot (3). The ball pivot also has a shaft (5), which projects through a outlet opening (6) of the housing (1). The housing is closed with a cover (7) on the side opposite the outlet opening (6). The bearing shell (2), accommodated in the housing in a positioned manner, has an axially extending continuous slot (8). The cover (7), arranged between the cover and the bearing shell, has a geometry (9) impressed into a damping element (11) on its inner side facing the bearing shell. As a result of the construction the damping element (11) and the bearing shell are fixed in the housing (1).Type: GrantFiled: April 11, 2001Date of Patent: April 29, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Manfred Heidemann, Guido Schulte, Martin Rechtien, Olaf Abels, Frank Berstermann, Rainer Ungruh
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Patent number: 6533705Abstract: A shifting device is disclosed for automatic transmissions of motor vehicles with a selector lever, which is pivotable around at least one axis and by which the gears defined by the transmission of the motor vehicle can be selected. A shift position of the selector lever is associated with each gear. An actuator cooperates with a locking member, which is pivotable around an axis. The locking member is pivotable by the actuator around the axis and has an engaging contour corresponding to the particular shift position of the selector lever on the side facing the selector lever. The selector lever can thus be locked in each shift position.Type: GrantFiled: November 22, 2000Date of Patent: March 18, 2003Assignees: ZF Lemförder Metallwaren AG, Audi AGInventors: Andreas Giefer, Roland Neughbauer, Peter Schiberna
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Patent number: 6510915Abstract: A motor vehicle is provided with a shifting device fastened stationarily in the motor vehicle for actuating the gear change box. The connection between the motor vehicle and the shifting device comprises at least one locking device in the form of a snap-in connection. The snap-in connection may be two complementary snap-in elements which detachably engage one another. The locking device is used with at least one fixing device comprising a bushing and a complementary sleeve that can be inserted into the bushing.Type: GrantFiled: July 6, 2001Date of Patent: January 28, 2003Assignee: ZF Lemförder Metallwaren AGInventor: Jörg Meyer
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Patent number: 6511058Abstract: A hydraulically damping rubber is provided with an uncoupling element. The bearing has an elastomer arranged between an essentially cylindrical inner part and a cylindrical outer sleeve and connected to the inner part by vulcanization. The hydraulically damping rubber bearing has chambers for receiving a damping agent. The chambers are connected by at least one channel arranged in a channel carrier. The uncoupling element is provided for uncoupling the damping action caused by the circulation of the damping agent in the channel or channels against forces of low exciting amplitude introduced into the bearing. The uncoupling element is a separate component from the hydraulically damping rubber bearing, arranged in a recess in a channel carrier space of the bearing.Type: GrantFiled: June 5, 2001Date of Patent: January 28, 2003Assignee: ZF Lemförder Metallwaren AGInventors: Andreas Vossel, Frank Meyerink
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Patent number: 6511084Abstract: An axle suspension of rigid axles is presented, on the axle body (1) of which a steering triangle (2) as well as two longitudinal control arms (3, 4), which are located at spaced locations from the steering triangle and have different vertical positions, and additionally a stabilizing device (5) are arranged. The steering triangle has two control arms (2.1 and 2.2), which form an angle with one another and are fastened to a central joint (2.3), on the one hand, and are connected to the vehicle body via a guiding joint (2.4 and 2.5) each, on the other hand.Type: GrantFiled: February 16, 2001Date of Patent: January 28, 2003Assignee: ZF Lemförder MetallwarenInventors: Reinhard Buhl, Wilfried Lustig, Werner Schmudde
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Patent number: 6475380Abstract: A hydraulic fluid tank for motor vehicles has a fluid filter (1). The fluid filter (1) is inserted into a filter housing (3) present in the hydraulic fluid tank (2). The filter housing (3) may have a two-part design. The filter housing (3) may have an upper part (4) and a lower part (5), which are connected by a lock-in or snap connection.Type: GrantFiled: March 22, 2001Date of Patent: November 5, 2002Assignee: ZF Lemförder Metallwaren AGInventors: Thomas Fangmann, Dieter Gröger
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Patent number: 6474186Abstract: A shifting device for an automatic transmission controlled by an electronic control device (2) for vehicles, especially for motor vehicles, is described, which has a first shifting device (4), in which different gears to be shifted automatically can be preselected by manual selection, and a second shifting device (9), which can be actuated by device of a selector device (5) and in which the selector device (5) is held in the neutral middle position, from which it can be moved by manual actuation in a first direction (15) for inducing upshiftings and in a second direction (16) for inducing downshiftings, wherein the shifting movements of the selector device (5) are detected by device of sensors and are sent as signals to the control device (2).Type: GrantFiled: June 22, 2001Date of Patent: November 5, 2002Assignee: ZF Lemförder Metallwaren AGInventor: Reinhard Vollmar
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Patent number: 6474187Abstract: The device for shifting an automatic transmission for motor vehicles has a selector lever, which makes possible an automatic uplifting and downshifting of the transmission in a first position as well as an additional arrangement on the steering wheel for manual downshifting or upshifting; this additional arrangement 2 is integrated within the steering wheel rim 1.Type: GrantFiled: February 9, 2001Date of Patent: November 5, 2002Assignee: ZF Lemförder Metallwaren AGInventor: Reinhard Vollmar