Fastener device for arresting a vehicle steering wheel to a steering shaft
First Claim
1. Apparatus including:
- a vehicle steering wheel hub,an end of a steering shaft, anda shaft-hub connection between said hub and said end of said steering shaft connecting said hub and said steering shaft for joint rotation,said shaft-hub connection comprising an annular spring element which forms an interlocking fit between said hub and said end of said steering shaft, said fit blocking relative movement of said hub and said end of said steering shaft in the direction of the longitudinal axis of the steering shaft,said end of said steering shaft comprising a raised face with an outer diameter, said raised face being integral with said end of said steering shaft and having a face surface area which faces away from said hub,said spring element having an inner diameter which is smaller than said outer diameter of said raised face, andsaid spring element being radially pliable over at least a part of the axial length of said spring element so that at least a part of said spring element can expand due to its pliability over said raised face as said spring element and said hub move in the axial direction of said steering shaft to locate said part of said spring element axially on the side of said raised face which faces away from said hub; and
said raised face including a rearside tapered surface area which comprises said face surface area which faces away from said hub, and wherein said spring element has a corresponding tapered surface area which engages said rearside tapered surface area and is radially tensioned to produce an axial force,said raised face of said steering shaft further comprising a front-side tapered surface area facing away from said rearside tapered surface area, said hub having a tapered inner surface area, said inner surface area of said hub being biased by said spring element against said front-side tapered surface area;
said front-side tapered surface area directly adjoins said rearside tapered surface area.
1 Assignment
0 Petitions
Accused Products
Abstract
A fastener device for arresting a hub of a vehicle steering wheel to one end of a steering shaft includes a non-rotatable shaft/hub connection between the hub and the end of the steering shaft and an annular spring element which forms an interlocking fit between the hub and the steering shaft. The interlocking fit is effective in the direction of the longitudinal axis of the steering shaft. The steering shaft comprises a raised face, the face surface area of which facing away from the steering wheel continues into a smaller shaft diameter. The spring element comprises an inner diameter which is smaller with respect to the outer diameter of the raised face. The spring element is radially pliable over at least a part of its axial length and can be fitted over the steering shaft together with the hub and reaches behind the raised face.
16 Citations
13 Claims
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1. Apparatus including:
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a vehicle steering wheel hub, an end of a steering shaft, and a shaft-hub connection between said hub and said end of said steering shaft connecting said hub and said steering shaft for joint rotation, said shaft-hub connection comprising an annular spring element which forms an interlocking fit between said hub and said end of said steering shaft, said fit blocking relative movement of said hub and said end of said steering shaft in the direction of the longitudinal axis of the steering shaft, said end of said steering shaft comprising a raised face with an outer diameter, said raised face being integral with said end of said steering shaft and having a face surface area which faces away from said hub, said spring element having an inner diameter which is smaller than said outer diameter of said raised face, and said spring element being radially pliable over at least a part of the axial length of said spring element so that at least a part of said spring element can expand due to its pliability over said raised face as said spring element and said hub move in the axial direction of said steering shaft to locate said part of said spring element axially on the side of said raised face which faces away from said hub; and said raised face including a rearside tapered surface area which comprises said face surface area which faces away from said hub, and wherein said spring element has a corresponding tapered surface area which engages said rearside tapered surface area and is radially tensioned to produce an axial force, said raised face of said steering shaft further comprising a front-side tapered surface area facing away from said rearside tapered surface area, said hub having a tapered inner surface area, said inner surface area of said hub being biased by said spring element against said front-side tapered surface area; said front-side tapered surface area directly adjoins said rearside tapered surface area.
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2. Apparatus including:
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a vehicle steering wheel hub, an end of a steering shaft, and a shaft-hub connection between said hub and said end of said steering shaft connecting said hub and said steering shaft for joint rotation, said shaft-hub connection comprising an annular spring element which forms an interlocking fit between said hub and said end of said steering shaft, said fit blocking relative movement of said hub and said end of said steering shaft in the direction of the longitudinal axis of the steering shaft, said end of said steering shaft comprising a raised face with an outer diameter, said raised face being integral with said end of said steering shaft and having a face surface area which faces away from said hub, said spring element having an inner diameter which is smaller than said outer diameter of said raised face, and said spring element being radially pliable over at least a part of the axial length of said spring element so that at least a part of said spring element can expand due to its pliability over said raised face as said spring element and said hub move in the axial direction of said steering shaft to locate said part of said spring element axially on the side of said raised face which faces away from said hub; and said hub comprising an inner circumferential groove in which said spring element, comprising a slotted ring with two circumferential ends, is received; and a locking screw for moving said two circumferential ends of said spring element towards each other reducing the diameter of said spring element.
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3. Apparatus including:
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a vehicle steering wheel hub, an end of a steering shaft, and a shaft-hub connection between said hub and said end of said steering shaft connecting said hub and said steering shaft for joint rotation, said shaft-hub connection comprising an annular spring element which forms an interlocking fit between said hub and said end of said steering shaft, said fit blocking relative movement of said hub and said end of said steering shaft in the direction of the longitudinal axis of the steering shaft, said end of said steering shaft comprising a raised face with an outer diameter, said raised face being integral with said end of said steering shaft and having a face surface area which faces away from said hub, said spring element having an inner diameter which is smaller than said outer diameter of said raised face, and said spring element being radially pliable over at least a part of the axial length of said spring element so that at least a part of said spring element can expand due to its pliability over said raised face as said spring element and said hub move in the axial direction of said steering shaft to locate said part of said spring element axially on the side of said raised face which faces away from said hub; and said hub comprising an inner circumferential groove in which said spring element, comprising a slotted ring with two circumferential ends, is received; and a locking screw for moving said two circumferential ends of said spring element towards each other reducing the diameter of said spring element, and said two circumferential ends comprising outwardly projecting protrusions which supplement each other to form a cone and wherein said locking screw is screwed into a thread in said hub extending substantially in the radial direction and comprising a conically hollowed face end which receives said protrusions and moves them toward each other upon screwing-in of said locking screw.
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4. Apparatus including:
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a vehicle steering wheel hub, an end of a steering shaft, and a shaft-hub connection between said hub and said end of said steering shaft connecting said hub and said steering shaft for joint rotation, said shaft-hub connection comprising an annular spring element which forms an interlocking fit between said hub and said end of said steering shaft, said fit blocking relative movement of said hub and said end of said steering shaft in the direction of the longitudinal axis of the steering shaft, said end of said steering shaft comprising a raised face with an outer diameter, said raised face being integral with said end of said steering shaft and having a face surface area which faces away from said hub, said spring element having an inner diameter which is smaller than said outer diameter of said raised face, and said spring element being radially pliable over at least a part of the axial length of said spring element so that at least a part of said spring element can expand due to its pliability over said raised face as said spring element and said hub move in the axial direction of said steering shaft to locate said part of said spring element axially on the side of said raised face which faces away from said hub. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification