Patents by Inventor Dennis Fuechsel
Dennis Fuechsel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11760408Abstract: A steering gear mechanism is disclosed for a steering system of a motor vehicle including at least a housing, a gear wheel, a pinion intermeshing with the gear wheel and a pinion shaft comprising the pinion. The pinion shaft is mounted on one side of the pinion in a fixed bearing, which includes a pivot bearing, in which the pinion shaft is received. The pivot bearing itself is received in a fixed bearing sleeve. The fixed bearing comprises a pivot ring, which has an outer ring and an inner ring, which are connected to each other by way of one or more torsion webs in such a manner that pivoting about a pivot axis defined by the one or more torsion webs is enabled, the inner ring being received in the fixed bearing sleeve and the outer ring being mounted within the housing.Type: GrantFiled: September 18, 2019Date of Patent: September 19, 2023Assignee: Robert Bosch GmbHInventors: Martin Zimmermann, Jens-Uwe Hafermalz, Dennis Fuechsel
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Patent number: 11661098Abstract: A fixed bearing for a steering gear includes a bearing sleeve, and ball bearing having an inner bearing shell and outer bearing shell. The inner shell is configured to hold a pinion shaft of the steering gear. The outer shell is held in the sleeve. Each shell respectively has at least one guide groove to hold and guide bearing balls, and a pivot ring with an outer ring and inner ring pivotably connected via at least one torsion web. The inner ring is connected to the sleeve. The outer ring is configured to mount the fixed bearing in a steering gear housing. At least one shell is formed from partial shells, each partial shell defining at least a portion of the respective guide groove. The multi-part design enables relatively large guide groove shoulders and a correspondingly relatively high ball bearing load-bearing capacity even under a relatively high tilting load during steering gear operation.Type: GrantFiled: September 5, 2017Date of Patent: May 30, 2023Assignee: Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Ekkehard Kneer, Dennis Fuechsel
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Patent number: 11524714Abstract: A floating bearing for a steering gear of a motor vehicle includes a rotary bearing having an inner bearing ring for receiving a screw pinion shaft of the steering gear, and an outer bearing ring built into a bearing sleeve. The bearing sleeve interacts with a guiding element, which interacts with a holding element, such that the bearing sleeve moves relative to the holding element in a first direction oriented radially to the longitudinal axis of the bearing sleeve when the screw pinion shaft is not loaded with torque, and relative movement is prevented when the screw pinion shaft is loaded with torque by moving the bearing sleeve in relation to the holding element in a second direction that is oriented radially to the longitudinal axis and perpendicularly to the first direction, whereby the guiding element is tilted in a guiding opening of the holding element or the bearing sleeve.Type: GrantFiled: May 15, 2018Date of Patent: December 13, 2022Assignee: Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Marco Grau, Martin Zimmermann, Dennis Fuechsel
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Patent number: 11459020Abstract: A steering system for a vehicle includes a pinion shaft which is mounted rotatably in a locating bearing and in a floating bearing, wherein both the locating bearing and the floating bearing are received in the steering housing.Type: GrantFiled: June 11, 2018Date of Patent: October 4, 2022Assignee: Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Ekkehard Kneer, Dennis Fuechsel
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Patent number: 11447172Abstract: A steering gear for a steering system of a motor vehicle includes a casing, a toothed gear, a pinion that meshes with the toothed gear, and a pinion shaft that comprises the pinion. The pinion shaft is mounted in a fixed bearing which comprises a rotary bearing in which the pinion shaft is received and which is received in a plastic bearing sleeve. The fixed bearing includes a pivot ring, which has outer and inner rings that are pivotably connected via one or more torsion webs. The torsion webs each extend through an opening in the bearing sleeve. The opening is defined by delimiting surfaces in which at least one of those delimiting surfaces is configured to prevent mechanical overloading of the plastic in the region of said delimiting surfaces as a result of contact with the torsion webs that are functionally deformed during the operation of the steering gear.Type: GrantFiled: March 13, 2019Date of Patent: September 20, 2022Assignee: Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Patent number: 11407441Abstract: A steering gear for a steering system of a motor vehicle includes a housing, a gearwheel, a pinion meshing with the gearwheel, and a pinion shaft with the pinion. The pinion shaft is mounted on one side of the pinion in a floating bearing that includes a rotary bearing that receives the pinion shaft. The rotary bearing is connected to a stop element, which is simultaneously arranged displaceably and non-rotatably within a receiving space. The pivoting mobility of the pinion shaft guided by a fixed bearing, on the other side of the pinion, is limited by a stop between the stop element and a wall of the receiving space. The stop element and the receiving space are configured such that, only in the event of such a stop, pivoting mobility of the pinion shaft is blocked about an axis oriented perpendicular to the pivot axis.Type: GrantFiled: June 5, 2018Date of Patent: August 9, 2022Assignee: Robert Bosch GmbHInventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20220041205Abstract: A method is disclosed for preparing a steering gear for subsequent use as part of a steering system of a motor vehicle, the steering gear includes at least a gear and a pinion meshing with the gear, and at least the teeth of the gear and/or of the pinion being made of plastic. The pinion is first pressed against the gear by way of a first force, while at the same time the pinion and the gear are rotated first in a first direction of rotation and subsequently in the second direction of rotation. The first force is preferably selected so high that plastic deformation of the plastic of the pinion and/or of the gear is achieved. Subsequently, the pinion is pressed against the gear by way of a second, defined force, which is less than the first force, the second force being permanently set.Type: ApplicationFiled: September 11, 2019Publication date: February 10, 2022Inventors: Martin Zimmermann, Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20220001917Abstract: A steering gear mechanism is disclosed for a steering system of a motor vehicle including at least a housing, a gear wheel, a pinion intermeshing with the gear wheel and a pinion shaft comprising the pinion. The pinion shaft is mounted on one side of the pinion in a fixed bearing, which includes a pivot bearing, in which the pinion shaft is received. The pivot bearing itself is received in a fixed bearing sleeve. The fixed bearing comprises a pivot ring, which has an outer ring and an inner ring, which are connected to each other by way of one or more torsion webs in such a manner that pivoting about a pivot axis defined by the one or more torsion webs is enabled, the inner ring being received in the fixed bearing sleeve and the outer ring being mounted within the housing.Type: ApplicationFiled: September 18, 2019Publication date: January 6, 2022Inventors: Martin Zimmermann, Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20210206423Abstract: A steering gear for a steering system of a motor vehicle includes a casing, a toothed gear, a pinion that meshes with the toothed gear, and a pinion shaft that comprises the pinion. The pinion shaft is mounted in a fixed bearing which comprises a rotary bearing in which the pinion shaft is received and which is received in a plastic bearing sleeve. The fixed bearing includes a pivot ring, which has outer and inner rings that are pivotably connected via one or more torsion webs. The torsion webs each extend through an opening in the bearing sleeve. The opening is defined by delimiting surfaces in which at least one of those delimiting surfaces is configured to prevent mechanical overloading of the plastic in the region of said delimiting surfaces as a result of contact with the torsion webs that are functionally deformed during the operation of the steering gear.Type: ApplicationFiled: March 13, 2019Publication date: July 8, 2021Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20210155280Abstract: A steering gear for a steering system of a motor vehicle includes a housing, a gearwheel, a pinion meshing with the gearwheel, and a pinion shaft with the pinion. The pinion shaft is mounted on one side of the pinion in a floating bearing that includes a rotary bearing that receives the pinion shaft. The rotary bearing is connected to a stop element, which is simultaneously arranged displaceably and non-rotatably within a receiving space. The pivoting mobility of the pinion shaft guided by a fixed bearing, on the other side of the pinion, is limited by a stop between the stop element and a wall of the receiving space. The stop element and the receiving space are configured such that, only in the event of such a stop, pivoting mobility of the pinion shaft is blocked about an axis oriented perpendicular to the pivot axis.Type: ApplicationFiled: June 5, 2018Publication date: May 27, 2021Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20200332878Abstract: A steering gear for a steering system of a motor vehicle includes a housing, a gear, a pinion which meshes with the gear, and a pinion shaft that includes the pinion. The pinion shaft is mounted in a fixed bearing on a first side of the pinion, the fixed bearing having a rotary bearing in which the pinion shaft is received and which is received in a bearing sleeve of the fixed bearing, and pivoting ring with an outer ring and an inner ring that are pivotably connected via one or more torsion webs. The inner ring is received in the bearing sleeve, and the outer ring is fixedly arranged in the housing. The bearing sleeve is made of plastic. Thus, the bearing sleeve can be produced in a simple manner and the bearing sleeve exhibits a relatively low component weight as a result of the plastic design.Type: ApplicationFiled: September 5, 2018Publication date: October 22, 2020Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20200231201Abstract: A steering system for a vehicle includes a pinion shaft which is mounted rotatably in a locating bearing and in a floating bearing, wherein both the locating bearing and the floating bearing are received in the steering housing.Type: ApplicationFiled: June 11, 2018Publication date: July 23, 2020Inventors: Jens-Uwe HAFERMALZ, Ekkehard KNEER, Dennis FUECHSEL
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Publication number: 20200180677Abstract: A floating bearing for a steering gear of a motor vehicle includes a rotary bearing having an inner bearing ring for receiving a screw pinion shaft of the steering gear, and an outer bearing ring built into a bearing sleeve. The bearing sleeve interacts with a guiding element, which interacts with a holding element, such that the bearing sleeve moves relative to the holding element in a first direction oriented radially to the longitudinal axis of the bearing sleeve when the screw pinion shaft is not loaded with torque, and relative movement is prevented when the screw pinion shaft is loaded with torque by moving the bearing sleeve in relation to the holding element in a second direction that is oriented radially to the longitudinal axis and perpendicularly to the first direction, whereby the guiding element is tilted in a guiding opening of the holding element or the bearing sleeve.Type: ApplicationFiled: May 15, 2018Publication date: June 11, 2020Inventors: Jens-Uwe Hafermalz, Marco Grau, Martin Zimmermann, Dennis Fuechsel
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Publication number: 20200063796Abstract: A steering system for a motor vehicle includes a steering gear and a steering motor. The steering gear includes a housing, gear, screw pinion shaft, fixed bearing, and floating bearing. The fixed bearing has a rotational bearing received in a sleeve, and a pivot ring with inner and outer rings pivotably connected by at least one torsion web. The shaft has a screw pinion meshed with the gear and a portion to one side of the pinion mounted in the rotational bearing. The inner pivot ring is integrated into or connected to the sleeve, and the outer ring is fixed to the housing. The floating bearing is positioned on the other side of the screw pinion, has a further rotational bearing rotatably received in a bushing mounted in the housing, and mounts the other side portion of the shaft. The motor is drivingly connected to the shaft via a coupling element.Type: ApplicationFiled: October 6, 2017Publication date: February 27, 2020Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20200055540Abstract: A fixed bearing for a steering gear includes a rotational bearing that has an inner bearing ring configured to receive a pinion shaft of the steering gear and an outer bearing ring that is received in a bearing sleeve. The fixed bearing also includes a pivot ring that has an outer ring and an inner ring that are pivotally connected via one or more torsion webs. The inner ring is connected to the bearing sleeve. The outer ring is disposed in a housing of the steering gear and configured to support the fixed bearing. The inner ring and the outer bearing ring are clamped between an axial stop of the bearing sleeve and a clamping ring. Such clamping reduces backlash and prevents undesired noises due to motion of these elements within the bearing sleeve during the operation of the steering gear with the fixed bearing.Type: ApplicationFiled: April 26, 2018Publication date: February 20, 2020Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20190315389Abstract: A steering gear for a steering system of a motor vehicle includes a housing, toothed wheel, pinion shaft, floating bearing, and fixed bearing. The shaft includes a first portion, a second portion, and a pinion therebetween meshed with the wheel. The fixed bearing includes a bearing sleeve, an outer bearing ring a rotary bearing received in the sleeve, and a pivoting ring with inner and outer rings pivotably connected via at least one torsion bar. The inner ring is built into or connected to the sleeve, and the outer ring is fixed in the housing. The first portion is received in the rotary bearing. The floating bearing includes a further rotary bearing radially moveably mounted in the housing, and having a further outer bearing ring connected to one or more of the sleeve and the outer bearing ring via a connecting element. The second portion is received in the further rotary bearing.Type: ApplicationFiled: October 6, 2017Publication date: October 17, 2019Inventors: Jens-Uwe Hafermalz, Dennis Fuechsel
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Publication number: 20190270476Abstract: A fixed bearing for a steering gear includes a bearing sleeve, and ball bearing having an inner bearing shell and outer bearing shell. The inner shell is configured to hold a pinion shaft of the steering gear. The outer shell is held in the sleeve. Each shell respectively has at least one guide groove to hold and guide bearing balls, and a pivot ring with an outer ring and inner ring pivotably connected via at least one torsion web. The inner ring is connected to the sleeve. The outer ring is configured to mount the fixed bearing in a steering gear housing. At least one shell is formed from partial shells, each partial shell defining at least a portion of the respective guide groove. The multi-part design enables relatively large guide groove shoulders and a correspondingly relatively high ball bearing load-bearing capacity even under a relatively high tilting load during steering gear operation.Type: ApplicationFiled: September 5, 2017Publication date: September 5, 2019Inventors: Jens-Uwe Hafermalz, Ekkehard Kneer, Dennis Fuechsel
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Patent number: 10315687Abstract: A steering gear having a gearwheel (2), a pinion shaft (3) which meshes with the former and is mounted such that it can be pivoted about a pivot axis which lies transversely with respect to the longitudinal axis (6) of the pinion shaft (3), wherein the pinion shaft (3) is loaded against the gearwheel (2) by means of a spring element which is integrated into a locating bearing (5) for the pinion shaft (3), which locating bearing (5) forms the pivot axis (7), and wherein the pinion shaft (3) is mounted in a floating bearing (8) such that is spaced apart axially from the pivot axis, which floating bearing (8) ensures mobility of the pinion shaft (3) which makes pivoting of the pinion shaft (3) about the pivot axis possible, wherein the floating bearing (8) comprises an outer part and an inner part which is arranged movably in a radial direction with respect to the outer part, is characterized by a stop element (24) which limits the radial mobility of the inner part and can be positioned differently with regard tType: GrantFiled: April 7, 2015Date of Patent: June 11, 2019Assignee: Robert Bosch Automotive Steering GmbHInventors: Dennis Fuechsel, Ekkehard Kneer, Jens Hafermalz, Marco Grau
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Patent number: 9962875Abstract: A method and a system for producing a plastic housing are presented. In a first step, a base body and at least one closure element are produced, and in a second step an elastomer layer is applied by way of at least one gate point using a gating process, the layer joining the base body and the at least one closure element to each other.Type: GrantFiled: October 25, 2013Date of Patent: May 8, 2018Assignee: Robert Bosch Automotive Steering GmbHInventors: Dennis Fuechsel, Jens Hafermalz
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Patent number: 9915340Abstract: A housing for a steering gear and a plastic housing, wherein the plastic housing comprises a base body made of a plastic material, and elastomer layer and at least one closure element.Type: GrantFiled: October 25, 2013Date of Patent: March 13, 2018Assignee: Robert Bosch Automotive Steering GmbHInventors: Dennis Fuechsel, Jens Hafermalz