Fastener

• US 7,118,317 B2
• Filed: 06/27/2001
• Issued: 10/10/2006
• Est. Priority Date: 07/13/2000
• Status: Expired due to Term

• Current Assignee: ABC Umformtechnik GmbH & Co. KG
• Original Assignee: Altenloh Brinck & Company GmbH & Company KG
• Inventors: Hofschneider, Manfred
• Primary Examiner(s): Mah, Chuck Y.
• Assistant Examiner(s): Kyle, Michael J.
• Application Number:
  US10/332,477
• Publication Number:
  US 20040101382A1
• Time in Patent Office: 1,931 Days
• Field of Search: 411/380, 411/381, 411/399, 411/432, 411/533, 411/537, 411/501, 411504-507, 411/402, 285/334.4
• US Class Current: 411/402
• CPC Class Codes: B60B 3/16 by bolts or the like
• CPC Class Codes: F16B 35/06 Specially-shaped heads special shape in order to rotate the bolt F16B23/00 ; separate hook adaptors for bolts F16B43/025

Abstract

The present invention concerns a fastener arrangement made of a component and a screw element with an area for the application of force for a turning tool, where the component and the screw element, when fastened to each other, are in contact with each other by way of contact surfaces, and where the contact surface of the screw element on the side facing the component, has a convexly curved outer surface, and where the contact surface of the component has a concavely curved inner surface, while the outer surface and the inner surface are positioned coaxially with respect to a common longitudinal axis, which runs through the component and the screw element.

Claims

1. A fastener arrangement comprising:

a component; and

a screw element with a force application area for a turning tool, where the component and the screw element—

when they have been attached—

are in contact with each other by way of contact surfaces, and where the contact surface of the screw element on the side facing the component is configured as a convexly curved outer surface, and the contact surface of the component is configured as a concavely curved inner surface, while the outer surface and the inner surface are positioned coaxially with respect to a common longitudinal axis, which extends through the component and the screw element, the contact surfaces when viewed in the axial cross section of the fastener arrangement define circular sections each having two ends and being curved in such a manner, that centers of curvature of the circular sections of the convexly curved outer surface are spaced from centers of curvature of the circular sections of the concavely curved inner surface in a direction proceeding perpendicularly to the longitudinal axis in such a manner that the contact surfaces are in contact with each other between the ends of their circular sections when they are fastened, wherein the centers of curvature of the circular sections of the concavely curved inner surface define a common center of curvature B, and the centers of curvature of the circular sections of the convexly curved outer surface are, in the direction extending perpendicularly to the longitudinal axis, spaced from each other, where radii belonging to the centers of curvature of the circular sections of the concavely curved inner surface are longer than radii belonging to the centers of curvature of the circular sections of the convexly curved outer surface.

2. A fastener arrangement, comprising:

a component; and

a screw element with a force application area for a turning tool, where the component and the screw element—

when they have been attached—

are in contact with each other by way of contact surfaces, and where the contact surface of the screw element on the side facing the component is configured as a convexly curved outer surface, and the contact surface of the component is configured as a concavely curved inner surface, while the outer surface and the inner surface are positioned coaxially with respect to a common longitudinal axis, which extends through the component and the screw element, the contact surfaces when viewed in the axial cross section of the fastener arrangement define circular sections each having two ends and being curved in such a manner, that centers of curvature of the circular sections of the convexly curved outer surface are spaced from centers of curvature of the circular sections of the concavely curved inner surface in a direction proceeding perpendicularly to the longitudinal axis in such a manner that the contact surfaces are in contact with each other between the ends of their circular sections when they are fastened, wherein the centers of curvature of the circular sections of the convexly curved outer surface define a common center of curvature A, and the centers of curvature of the circular sections of the concavely curved inner surface are, in the direction extending perpendicularly to the longitudinal axis, spaced from each other, where radii belonging to the centers of curvature of the circular sections of the convexly curved outer surface are shorter than radii belonging to the centers of curvature of the circular sections of the concavely curved inner surface.

3. A fastener arrangement, comprising:

a component; and

a screw element with a force application area for a turning tool, where the component and the screw element—

when they have been attached—

are in contact with each other by way of contact surface, and where the contact surface of the screw element on the side facing the component is configured as a convexly curved outer surface, and the contact surface of the component is configured as a concavely curved inner surface, while the outer surface and the Inner surface are positioned coaxially with respect to a common longitudinal axis, which extends through the component and the screw element, the contact surface when viewed in axial cross section of the fastener arrangement defines circular sections each having two ends and being curved in such a manner, that centers of curvature of the circular sections of the convexly curved outer surface are spaced from centers of curvature of the circular sections of the concavely curved inner surface In a direction proceeding perpendicularly to the longitudinal axis in such a manner that the contact surfaces are in contact with each other between the ends of their circular sections when they are fastened, wherein centers of the curvature of the circular sections of the concavely curved inner surface and centers of curvature of the circular sections of the convexly curved outer surface are—

in the direction extending perpendicularly to the longitudinal axis—

spaced from each other, and where radii belonging to the centers of curvature of the circular sections of the concavely curved inner surface are longer than radii belonging to the centers of curvature of the circular sections of the convexly curved outer surface.

4. A fastening arrangement comprising a screw element and a component, the screw element further comprising:

a force application area for a turning tool; and

a contact surface which points in the direction in which the screw element is screwed in, and which contact surface is configured as a convexly curved outer surface for making contact with a concavely curved inner surface of a component, where the outer surface of the screw element and the inner surface of the component are coaxial with respect to a common longitudinal axis that extends through the component and the screw element, wherein the contact surface when viewed in axial cross section of the screw element defines circular sections having centers of curvatures which are spaced from the longitudinal axis such that the convexly curved outer surface and the concavely curved inner surface of the component are in contact with each other between ends of the circular sections when they are fastened to each other;

wherein the concavely curved inner surface and the convexly curved outer surface each have centers of curvature which are spaced apart from each other In the direction extending perpendicularly to the longitudinal axis are spaced apart from each other, and where a radius belonging to the center of curvature of the concavely curved inner surface is longer than a radius belonging to one of the centers of curvature of the circular sections of the convexly curved outer surface.