Patents Assigned to Lemforder Metallwaren AG
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Patent number: 5419214Abstract: A mounting for a shift lever (1) for the mechanical remote control of a selector shaft of a gear change box in motor vehicles, in which the shift lever (1) is mounted pivotably around a selection axis and around a shifting axis, which is at right angles thereto, by means of a spherical part (2) of a universal joint in a bearing box (4) in a housing (3) that is a rigid part of the body, and is connected by coupling members (7, 16) to a sliding selector shaft of a gear change box. The coupling members for transmitting the movement of the shift lever to the sliding selector shaft are connected, articulated around an axle (9, 12) each, to the spherical part (2) of a universal joint, wherein the axle extends in one pivoting plane of the shift lever (1) at right angles to the pivot axis of the shift lever in the other direction of pivoting.Type: GrantFiled: June 22, 1993Date of Patent: May 30, 1995Assignee: Lemforder Metallwaren AGInventors: Reinhard Buhl, Wolfgang Kleiner, Volker Grube, Alfons Nordloh, Metin Ersoy
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Patent number: 5363717Abstract: This invention relates to the bearing mount of the steering column tube (1) of a telescoping steering column in which the steering column tube (1) is supported in a housing (2) on the body with axial mobility. To produce a bearing mount without play, the steering column tube (1) is mounted to move axially in the housing (2) in a bearing bushing (3) slotted in the longitudinal direction and made of a nonmetallic material, with this bearing bushing (3) being supported on an outer contour (5) conical in cross section with frictional adhesion against an inner cone (6) of the housing (2) under axial spring load.Type: GrantFiled: February 19, 1993Date of Patent: November 15, 1994Assignee: Lemforder Metallwaren AGInventors: Raimund Eichholz, Klaus Schuller
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Patent number: 5351572Abstract: The adjusting drive for axially adjustable steering columns in motor vehicles has a transmission between a drive unit mounted to rotate in a housing (2) secured to the body and a steering column tube (1) mounted to move axially in the housing. Gearing (5) is provided on the steering column tube extending in the axial direction. Gearing (8.1, 9.1) of the transmission engages with the steering column tube gearing. The gearing is provided as cycloidal gearing on two toothed racks (8, 9) whose gearing engages in the gearing on the steering column tube (1) out of phase with one another by half a tooth spacing, and which are movable eccentrically by the drive unit by a cam bearing (16, 17) out of phase by 180.degree..Type: GrantFiled: February 18, 1993Date of Patent: October 4, 1994Assignee: Lemforder Metallwaren AGInventor: Jens Vortmeyer
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Patent number: 5352044Abstract: A plastic bearing consisting of an elastically deformable material for stabilizers in motor vehicles of a one-part design, slotted on one side in an axial plane, which can be opened for mounting, with an inner contact surface (6), which is slidingly movable on the jacket surface of the stabilizer and is delimited by sealing lip rings (19) at the axial ends, on which pockets (7) filled with a lubricant are provided between radially extending beads (20) and longitudinal ribs (21) extending axially between them, and which plastic bearing can be mounted in a housing under pretension.Type: GrantFiled: August 3, 1993Date of Patent: October 4, 1994Assignee: Lemforder Metallwaren AGInventors: Ernst-Gunter Jordens, Helmut Kammel
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Patent number: 5346255Abstract: The present invention pertains to a steering column for a motor vehicle equipped with an inflatable air bag in the steering wheel (6), in which the parts (3, 4) of a steering shaft, which are connected to one another by a universal joint (5), are rotatably mounted in a housing consisting of a movable upper housing part (1) and a lower housing part (2) rigidly attached to the body, and the two parts of the housing are connected by a hinge (7) to a hinge axis (9) that extends approximately horizontally in the plane of the intersection of the axes of the universal joint, and can be interlocked with one another by the frictional engagement of a clamping device (13).Type: GrantFiled: April 2, 1993Date of Patent: September 13, 1994Assignee: Lemforder Metallwaren AGInventors: Burkhard Schafer, Kai-Uwe Grams
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Patent number: 5340220Abstract: A pivoting bearing for mounting pull rods in motor vehicles, which includes a metallic housing (2) with a cylindrical inner jacket, a metallic inner part (1), and an elastomer body (3) arranged between the housing (2) and the inner part (1). The elastomer body (3) compensates axial, radial, and cardanic movements of the housing (2) in relation to the inner part (1) by molecular deformation. The elastomer body (3), which cooperates with the cylindrical inner jacket of the housing radially in the outward direction, is arranged adheringly on the inner part (1) and is pre-tensioned axially between plate rings (4, 5). The external diameter of the plate rings (4 and 5) is undersized compared with the internal diameter of the inner jacket of the housing. A sliding surface is obtained on the cylindrical outer jacket of the elastomer body under the axial pre-tensioning of this. This sliding surface permits rotary movement of the inner part (1) in the housing (2).Type: GrantFiled: November 12, 1992Date of Patent: August 23, 1994Assignee: Lemforder Metallwaren AGInventors: Ruediger Sprang, Andreas Vossel, Werner Schmudde, Reinhard Buhl
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Patent number: 5318373Abstract: A ball joint for chassis parts in motor vehicles is described, in which a hinge pin 1 with a spherical part 2 is mounted in a housing 3 by a bearing box 4. The hinge pin is led through an opening 6 out of the housing 3. The housing 3 is sealed by a lid 7, on the opposite side. In this case, the housing is placed in a rigid external bushing 10 with an elastomer sleeve 9 surrounding the housing. Radial surfaces on the housing 3, as well as on the external bushing 10, limit the axial movement of the housing 3 with respect to the external bushing. The radial surfaces of the housing 3 are formed by the two flat sides of a collecting plate 15, which can be firmly connected to the housing 3 first in the assembly of the joint. The collecting plate 15 engages with an axial moving space between arranged radial surfaces of the external bushing 10.Type: GrantFiled: January 29, 1992Date of Patent: June 7, 1994Assignee: Lemforder Metallwaren AGInventors: Reinhard Buhl, Hans Dubielzig, Klaus Kramer, Reinhard Richter
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Patent number: 5312200Abstract: To improve the corrosion protection at the connection site of the sealing cuff and the ball pivot, a ball joint with a sealing cuff (7), made of an elastically deformable material, is proposed, which is connected, with an edge profile (9), to a ball pivot (2) in a positive-locking manner in the direction of rotation around the longitudinal axis of the ball pivot (2) and has an elasticity that compensates for the maximum rotary and swiveling movements of the ball pivot (2) relative to the housing (1).Type: GrantFiled: September 13, 1990Date of Patent: May 17, 1994Assignee: Lemforder Metallwaren AGInventors: Herr R. Buhl, Herr W. Kleiner
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Patent number: 5224783Abstract: The radially and axially load-bearing rotary sliding friction bearing for chassis parts in motor vehicles includes a rigid inner bushing (1) and an outer bushing (2), which is rotatable relative to it and is arranged in an elastomeric body (3) that adheres to it. Both bushings have, at least on one axially outer end, axial bearing surfaces at one radially directed flange projection (6, 7) each, wherein the flange projection associated with the outer bushing (2) is provided on an annular axial bearing on a sliding disk (7) and on a support ring (8) pressed onto the adjacent tubular end of the outer bushing (2). The sliding disk and the clamping ring are connected to one another by an elastomeric material in an adhering manner.Type: GrantFiled: June 23, 1992Date of Patent: July 6, 1993Assignee: Lemforder Metallwaren AGInventors: Elisabeth Schmidt, Klaus Kramer
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Patent number: 5214978Abstract: The present invention pertains to a steering column for motor vehicles with an angle-adjustable steering wheel, in which a steering shaft has a lower shaft 1 and an upper shaft 2. These shafts are connected to one another by a universal joint 5 rotatably mounted in a housing. The housing has a lower housing 3, which is attached to the vehicle body, and an upper housing 4, which, in contrast, is movable about an axis transverse to the longitudinal axis 11 of the steering column. Both housings form adjustable connection links for the angle adjustment of the steering wheel by connection links which can be motor-driven. The connection link has a worm segment 10 attached to the upper housing 4 and a worm 12 motor-rotatably mounted on the lower housing 3.Type: GrantFiled: January 31, 1992Date of Patent: June 1, 1993Assignee: Lemforder Metallwaren AGInventors: Metin Ersoy, Jens Vortmeyer
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Patent number: 5181784Abstract: An elastic sliding bearing for vehicle parts in motor vehicles, a rigid inner bushing (1) rotatably arranged in an outer bushing (2), and this is arranged in an elastomeric body (3) firmly adhering to the outer bushing. Both bushings have, at least at an axially outer end, axial bearing surfaces (8, 9) at one radially directed flange projection (7, 10) each. The flange projection (10) associated with the outer bushing is axially movably arranged in relation to this outer bushing (2) while an elastomeric intermediate member (11) undergoes elastic deformation.Type: GrantFiled: November 26, 1991Date of Patent: January 26, 1993Assignee: Lemforder Metallwaren AG.Inventors: Ernst-Gunter Jordens, Hubert Siemer
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Patent number: 5143456Abstract: The elastic sliding bearing for chassis parts in motor vehicles includes of a rigid inner bushing (1) and an outer bushing (2) surrounded by an elastomeric body (3). Both bushings have axial bearing surfaces (5, 6) on radially directed flange projections (4, 7) at an axially outer end, wherein a seal (11) surrounding the axial bearing surfaces (5, 6). The seal acts against the axially outer flange surface with at least one sealing lip (12). A disk (9), which is supported on one side surface by the sliding surface of the flange projection (4) on the inner bushing (1), is loosely inserted between a sliding surface forming the axial bearing surface (5) on the flange projection (4) of the inner bushing (1) and the elastomeric body (3) surrounding the outer bushing (2).Type: GrantFiled: May 22, 1991Date of Patent: September 1, 1992Assignee: Lemforder Metallwaren AGInventors: Ernst-Gunter Jordens, Helmut Kammel
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Patent number: 5118087Abstract: The sleeve rubber spring consists of an inner mounting sleeve (1), an outer mounting sleeve (2) surrounding the inner mounting sleeve at a radially spaced location, and a rubber body (3) arranged rigidly adhering between the two mounting sleeves. The rubber body forms at least two chambers (5, 6) are formed, which are filled with damping medium and permanently communicate with each other. An elastically deformable body forms a protective tube (4), into which the inner and outer mounting sleeves (2) are sealingly inserted. An overflow channel (8) with a shut-off device, which opens automatically at a predetermined pressure differential in the two chambers (5, 6) by radial deformation of the protective tube (4), is provided between the chambers (5, 6).Type: GrantFiled: September 13, 1990Date of Patent: June 2, 1992Assignee: Lemforder Metallwaren AGInventors: Ernst-Gunter Jordens, Rudiger Sprang, Andreas Vossel
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Patent number: 5104136Abstract: A steering tie rod or similar strut for motor vehicles with a securing member (4) acting in the longitudinal direction of the steering tie rod is described, which securing member comes into action when a defined, axially acting load value is exceeded. In another variant of the present invention, the length of the steering tie rod may undergo a limited change after the securing member has been overcome, so that limited fitness for use of the vehicle is maintained.Type: GrantFiled: May 16, 1990Date of Patent: April 14, 1992Assignee: Lemforder Metallwaren AGInventors: Reinhard Buhl, Burkhard Schafer, Paul Westphal, Wolfgang Kleiner, Volker Grube
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Patent number: 5092704Abstract: To improve the corrosion protection at the connection site of the sealing cuff and the ball pivot, it is proposed, in a design in which the sealing cuff engages with an edge profile in a complementary profile of a retaining ring rigidly attached to the ball pivot, that at least the part (12) of the retaining ring (10) which is supported by the edge of the bearing lug (6) consists of a material whose value in the electrochemical series is lower than that of the material of the bearing lug (6) and of the ball pivot (2). By this construction the material of the retaining ring acts as an electrolytic sacrificial anode.Type: GrantFiled: September 13, 1990Date of Patent: March 3, 1992Assignee: Lemforder Metallwaren AGInventors: Reinhard Buhl, Wolfgang Kleiner
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Patent number: 5073145Abstract: A joint movable in all directions for linkages and Cardan shafts. The joint includes only two parts of identical design made from an elastically deformable plastic, wherein the coupling members of identical design are fitted into each other at a 90.degree. angle while elastic deformation takes place.Type: GrantFiled: December 26, 1989Date of Patent: December 17, 1991Assignee: Lemforder Metallwaren AGInventors: Elke Ratzokwski, Keit Wagener
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Patent number: 5029488Abstract: A bearing for a gear shift lever for the mechanical remote control of the selector shaft of a gear change unit in motor vehicles includes a stationary housing pivot which supports a gear shift lever in such a manner that it can swivel around a selection axis and also around a change axis lying at an angle in relation to it. The gear shift lever is in addition jointed by a sliding selector shaft with the gear shift shaft in a gear change box or transmission. The gear change lever is supported in a movable bearing that can swivel around a defined axis. The movable bearing in turn can swivel around another redefined axis. Also, the lever is pivotal with a limited degree of freedom, around a main axis positioned through the center of the selection axis and also is pivotal at a link connection with the sliding selector shaft. The pivotal bearing housed in the stationary housing part is attached to the body.Type: GrantFiled: March 8, 1989Date of Patent: July 9, 1991Assignee: Lemforder Metallwaren AGInventors: Reinhard Buhl, Ulrich Stockert, Andreas Schmidt
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Patent number: 5029489Abstract: A steering column for motor vehicles with axially adjustable steering shaft and positive locking between an axially adjustable, non-rotatably mounted steering column jacket and a support bearing that forms a rigid part of the vehicle body is described, wherein the locking mechanism consists of teeth provided on the circumference of the steering column jacket and teeth engaging in same, which latter teeth are provided on a locking element movably anchored in the support bearing, as well as of wedge bodies which can be moved into a locked position that brings about locking.Type: GrantFiled: May 2, 1990Date of Patent: July 9, 1991Assignee: Lemforder Metallwaren AGInventors: Joachim Burmeister, Burkhard Schafer, Norbert Bauch
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Patent number: 5027674Abstract: A steering column for motor vehicles with a steering shaft that is movable in the axle direction and held by a positive connection notching. The notching is formed between a jacket barrel (1) placed so that it is fixed from turning, and a solid body thrust bearing (2) and consists of toothed gearing segments (4, 5) on the width of the jacket barrel (1) and anchored toothed elements (6, 7) that are movable on the thrust bearing (2) with at least a gear tooth (9, 10). Wedge bodies (11, 12) are provided that by means of a control are movable in the bolt position brought about by the notching. The gearing tooth portions on the jacket barrel (1) include at least two segments (4, 5) developed with the same tooth spacing, that nevertheless are arranged around a half gear segment displaced with respect to each other.Type: GrantFiled: October 27, 1989Date of Patent: July 2, 1991Assignee: Lemforder Metallwaren AGInventors: Frank Nolte, Norbert Bauch
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Patent number: 4971473Abstract: A ball-and-socket joint for motor vehicles includes a joint ball (1) provided on a pivot pin (2) mounted movably in a sliding shell (4) made of plastic. A zone of grooves (8) are provided for receiving lubricant on an inner surface of the sliding shell. The sliding shell is inserted into a housing (5) whose inner wall closely surrounds the outer wall of the sliding shell (4). In the zone of the grooves receiving the lubricant, flat recesses (9), which permit radial deformation of the sliding shell (4) in the direction toward the housing, are provided between the housing (5) and the sliding shell (4).Type: GrantFiled: August 24, 1989Date of Patent: November 20, 1990Assignee: Lemforder Metallwaren AGInventors: Burkhard Schafer, Reinhard Buhl