Patents by Inventor Holger von Hayn
Holger von Hayn 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: 11976701Abstract: The proposal is for an improved expansion device for a drum brake having an integrated readjustment unit having a readjusting screw which can be locked therein by a spring-loaded latching unit which, for a reliable readjustment function with a reduced level of force, provides for the latching unit to allow a defined idle rotation of the readjusting screw, which is defined structurally by a first stop acting in a first direction of revolution and a second stop acting in the opposite direction of revolution.Type: GrantFiled: September 25, 2019Date of Patent: May 7, 2024Assignee: Continental Teves AG & Co. OHGInventors: Uwe Bach, Martin Gädke, Holger von Hayn, Ahmed Sefo, Jens Hoffmann, Adrian Messner, Wolfgang Ritter, Falk Petzold, Matthias Schulitz
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Patent number: 11661043Abstract: A method for ascertaining an operating variable of a drum brake, the method using forces acting on supporting bearings. The invention further relates to an associated drum brake assembly, an associated analysis unit and an associated storage medium.Type: GrantFiled: February 17, 2020Date of Patent: May 30, 2023Assignee: Continental Teves AG & Co. OHGInventors: Christian Vey, Hermann Winner, Jens Hoffmann, Martin Kruse, Christian Philipp, Uwe Bach, Holger von Hayn, Jürgen Böhm, Christof Maron
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Patent number: 11578772Abstract: The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.Type: GrantFiled: February 7, 2020Date of Patent: February 14, 2023Assignee: Continental Teves AG & Co. OHGInventors: Holger von Hayn, Martin Gädke, Ahmed Sefo, Jens Hoffmann, Uwe Bach, Martin Semsch, Adrian Messner, Ulrike Meyer, Martin Kruse, Wolfgang Ritter, Christian Philipp
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Publication number: 20220333657Abstract: A spreader unit for a drum brake is provided with a readjustment device which ensures that the clearance remains substantially constant even in the case of wear on the brake linings. The readjustment device is arranged between actuating pistons and changes the spacing of the actuating pistons in at least one readjustment step when an actuating travel of the first and second brake shoe holders has exceeded a travel setpoint value.Type: ApplicationFiled: May 27, 2020Publication date: October 20, 2022Applicant: Continental Teves AG & Co. OHGInventors: Martin Gädke, Holger von Hayn, Matthias Schulitz, Ahmed Sefo, Uwe Bach, Adrian Messner, Wolfgang Ritter, Jens Hoffmann, Christian Vey
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Publication number: 20220228635Abstract: A drum brake having a brake drum, brake shoes, a carrier plate and a load measurement device in the region of an abutment is mountable on a steering knuckle. The abutment has a cylinder in which two pistons are guided, on the outer end faces of which the abutment ends of the brake shoes rest and the inner end faces of which are each supported by a spring on a step in the cylinder. A hollow peg projects from the outside of the cylinder and penetrates an opening in the carrier plate, such that it can be received in a receiving space in the steering knuckle resting on the carrier plate or in a reinforcement element fixed on the steering knuckle.Type: ApplicationFiled: May 20, 2020Publication date: July 21, 2022Applicant: Continental Teves AG & Co. OHGInventors: Martin Gädke, Holger von Hayn, Matthias Schulitz, Ahmed Sefo, Uwe Bach, Adrian Messner, Wolfgang Ritter, Jens Hoffmann, Falk Petzold, Martin Kruse, Christian Vey, Ulrike Meyer
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Patent number: 11300170Abstract: An improved electromechanically drivable spreader unit having an integrated adjustment apparatus for a drum brake, in which the linear motion of brake shoe holders is produced by two ball-ramp devices, wherein a first ball-ramp device includes a first actuation piston arranged for rotation about the axis and a second ball-ramp device includes a second actuation piston arranged for rotation about the axis, and wherein an adjustment apparatus for compensating an actuation travel that increases as a result of wear on the friction linings is arranged in an axially centered position within the housing and substantially between the actuation pistons.Type: GrantFiled: October 8, 2018Date of Patent: April 12, 2022Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Uwe Bach, Martin Gädke, Holger von Hayn, Ahmed Sefo, Jens Hoffmann, Adrian Messner, Wolfgang Ritter
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Patent number: 11248672Abstract: A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.Type: GrantFiled: June 3, 2014Date of Patent: February 15, 2022Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Uwe Bach, Jens Hoffmann, Niclas Görrissen, Wolfgang Ritter, Ahmed Sefo, Holger von Hayn
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Publication number: 20220034377Abstract: The proposal is for an improved expansion device for a drum brake having an integrated readjustment unit having a readjusting screw which can be locked therein by a spring-loaded latching unit which, for a reliable readjustment function with a reduced level of force, provides for the latching unit to allow a defined idle rotation of the readjusting screw, which is defined structurally by a first stop acting in a first direction of revolution and a second stop acting in the opposite direction of revolution.Type: ApplicationFiled: September 25, 2019Publication date: February 3, 2022Inventors: Uwe Bach, Martin Gädke, Holger von Hayn, Ahmed Sefo, Jens Hoffmann, Adrian Messner, Wolfgang Ritter, Falk Petzold, Matthias Schulitz
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Patent number: 11072316Abstract: A braking device for a hydraulic motor vehicle braking system having an electromechanically driven booster stage and a ball screw drive. In order to provide a braking device which is of particularly compact, cost-effective and weight-saving construction and has short pedal strokes, and an easily adjustable pedal characteristic curve, at the same time enabling effective direct action in case of failure of the booster stage and comfortable haptic feedback at the pedal during normal operation, the actuating force from a piston rod is introduced into the spindle, wherein the piston rod can be moved axially to a limited extent relative to the spindle and a spring element is inserted in the flow of force of the actuating force between the piston rod and the spindle, which spring is compressed axially when the actuating force is introduced.Type: GrantFiled: May 11, 2017Date of Patent: July 27, 2021Assignee: CONTINENTAL TEVES AG & CO. OHGInventors: Uwe Bach, Jens Hoffmann, Martin Gädke, Holger von Hayn, Ahmed Sefo, Adrian Messner, Wolfgang Ritter
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Publication number: 20210190159Abstract: An improved electromechanically drivable spreader unit having an integrated adjustment apparatus for a drum brake, in which the linear motion of brake shoe holders is produced by two ball-ramp devices, wherein a first ball-ramp device includes a first actuation piston arranged for rotation about the axis and a second ball-ramp device includes a second actuation piston arranged for rotation about the axis, and wherein an adjustment apparatus for compensating an actuation travel that increases as a result of wear on the friction linings is arranged in an axially centered position within the housing and substantially between the actuation pistons.Type: ApplicationFiled: October 8, 2018Publication date: June 24, 2021Inventors: Uwe Bach, Martin Gädke, Holger von Hayn, Ahmed Sefo, Jens Hoffmann, Adrian Messner, Wolfgang Ritter
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Patent number: 10889270Abstract: Differentials having plate packs for exerting a braking torque onto the output shafts of the gear unit are known. The brake device is intended to be designed such that effective braking can be achieved using it and that it is easy to service. To this end, the invention makes provision for the brake device to be a drum brake having a passive element, exhibiting a cylindrical frictional surface, and brake shoes, the frictional surfaces of which brake shoes can be placed against the cylindrical frictional surface of the passive element. The passive element can be a brake drum or a radial brake disk, the cylindrical edge of which serves as a frictional surface. The passive element is fastened to the differential cage and/or one of the shafts. The brake shoes are held in a pivotable manner on a carrier plate fastened to the outside of the differential housing.Type: GrantFiled: August 8, 2017Date of Patent: January 12, 2021Assignee: Continental Teves AG & Co. oHGInventors: Ulrike Meyer, Martin Semsch, Uwe Bach, Jens Hoffmann, Ahmed Sefo, Wolfgang Ritter, Martin Gädke, Holger von Hayn, Adrian Messner
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Publication number: 20200191218Abstract: The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.Type: ApplicationFiled: February 7, 2020Publication date: June 18, 2020Applicant: Continental Teves AG & Co. OHGInventors: Holger von Hayn, Martin Gädke, Ahmed Sefo, Jens Hoffmann, Uwe Bach, Martin Semsch, Adrian Messner, Ulrike Meyer, Martin Kruse, Wolfgang Ritter, Christian Philipp
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Publication number: 20200180575Abstract: A method for ascertaining an operating variable of a drum brake, the method using forces acting on supporting bearings. The invention further relates to an associated drum brake assembly, an associated analysis unit and an associated storage medium.Type: ApplicationFiled: February 17, 2020Publication date: June 11, 2020Applicant: Continental Teves AG & Co. OHGInventors: Christian Vey, Hermann Winner, Jens Hoffmann, Martin Kruse, Christian Philipp, Uwe Bach, Holger von Hayn, Jürgen Böhm, Christof Maron
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Publication number: 20190232927Abstract: Differentials having plate packs for exerting a braking torque onto the output shafts of the gear unit are known. The brake device is intended to be designed such that effective braking can be achieved using it and that it is easy to service. To this end, the invention makes provision for the brake device to be a drum brake having a passive element, exhibiting a cylindrical frictional surface, and brake shoes, the frictional surfaces of which brake shoes can be placed against the cylindrical frictional surface of the passive element. The passive element can be a brake drum or a radial brake disk, the cylindrical edge of which serves as a frictional surface. The passive element is fastened to the differential cage and/or one of the shafts. The brake shoes are held in a pivotable manner on a carrier plate fastened to the outside of the differential housing.Type: ApplicationFiled: August 8, 2017Publication date: August 1, 2019Applicant: Continental Teves AG & Co. oHGInventors: Ulrike Meyer, Martin Semsch, Uwe Bach, Jens Hoffmann, Ahmed Sefo, Wolfgang Ritter, Martin Gädke, Holger von Hayn, Adrian Messner
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Publication number: 20190092298Abstract: A braking device for a hydraulic motor vehicle braking system having an electromechanically driven booster stage and a ball screw drive. In order to provide a braking device which is of particularly compact, cost-effective and weight-saving construction and has short pedal strokes, and an easily adjustable pedal characteristic curve, at the same time enabling effective direct action in case of failure of the booster stage and comfortable haptic feedback at the pedal during normal operation, the actuating force from a piston rod is introduced into the spindle, wherein the piston rod can be moved axially to a limited extent relative to the spindle and a spring element is inserted in the flow of force of the actuating force between the piston rod and the spindle, which spring is compressed axially when the actuating force is introduced.Type: ApplicationFiled: May 11, 2017Publication date: March 28, 2019Inventors: Uwe Bach, Jens Hoffmann, Martin Gädke, Holger von Hayn, Ahmed Sefo, Adrian Messner, Wolfgang Ritter
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Patent number: 10151365Abstract: An expanding device for actuating one of the brake shoes of a drum brake includes a body of revolution and transmission bodies actuated by the body of revolution via ball track ramps. A spacer body is located between two partial bodies of the body of revolution, the spacer body guided by an adjustment spring keeping the partial bodies at the respectively reached distance. The spacer body is screwed onto a pin on the first partial body. A readjustment nut ensures that, when the two partial bodies are pushed apart, the spacer body rotates on the pin and moves away from a supporting surface on a partition of the second partial body. Upon renewed actuation of the brakes, the readjustment nut is guided such that the spacer body bears against the second partial body, but takes up a different position on the pin, the position corresponding to the air clearance readjustment.Type: GrantFiled: December 14, 2015Date of Patent: December 11, 2018Assignee: Continental Teves AG & Co. oHGInventors: Uwe Bach, Jens Hoffmann, Martin Gädke, Holger von Hayn, Ahmed Sefo, Thorsten Lahr, Wolfgang Ritter
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Patent number: 9915309Abstract: An expansion device for drum brakes, which is floatingly and approximately centrally arranged between two substantially symmetrical brake shoes, the expansion device including at least two gear levers articulated to each other and each supported on a brake shoe, at least one of the gear levers of the expansion lock being coupled to an actuating element of an actuator system such that the brake shoes carry out an even, translationally directed expanding movement, which is converted by a gearing, in the direction of the brake drum. At least one of the gear levers of the spreader lock has a spring element integrated into it that can be elastically reversibly deformed by a brake application force about a defined elasticity ?S of at least 1 mm in a defined manner.Type: GrantFiled: November 18, 2014Date of Patent: March 13, 2018Assignee: Continental Teves AG & Co. oHGInventors: Martin Gädke, Uwe Bach, Stephan Becker, Volker van Aken, Holger von Hayn, Jens Hoffmann, Ahmed Sefo, Wolfgang Ritter
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Publication number: 20170363164Abstract: An expanding device for actuating one of the brake shoes of a drum brake includes a body of revolution and transmission bodies actuated by the body of revolution via ball track ramps. A spacer body is located between two partial bodies of the body of revolution, the spacer body guided by an adjustment spring keeping the partial bodies at the respectively reached distance. The spacer body is screwed onto a pin on the first partial body. A readjustment nut ensures that, when the two partial bodies are pushed apart, the spacer body rotates on the pin and moves away from a supporting surface on a partition of the second partial body. Upon renewed actuation of the brakes, the readjustment nut is guided such that the spacer body bears against the second partial body), but takes up a different position on the pin, the position corresponding to the air clearance readjustment.Type: ApplicationFiled: December 14, 2015Publication date: December 21, 2017Inventors: Uwe Bach, Jens Hoffmann, Martin Gädke, Holger von Hayn, Ahmed Sefo, Thorsten Lahr, Wolfgang Ritter
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Publication number: 20170307034Abstract: A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.Type: ApplicationFiled: July 12, 2017Publication date: October 26, 2017Inventors: Uwe Bach, Jens Hoffmann, Niclas Görrissen, Wolfgang Ritter, Ahmed Sefo, Holger von Hayn
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Publication number: 20160102720Abstract: A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.Type: ApplicationFiled: June 3, 2014Publication date: April 14, 2016Inventors: Uwe Bach, Jens Hoffmann, Niclas Görrissen, Wolfgang Ritter, Ahmed Sefo, Holger von Hayn