Axially Displaced Boot Fastening for Joint Stability
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Solution Overview
Problem
Existing boots used in sealing joints, particularly in the automotive industry, experience significant deformations and potential bursting under high mechanical loading and rotational speeds due to complete overlapping of the outer lateral surface of the joint housing by the first fastening element, leading to reduced operational stability.
Innovation Solution
The boot design features a first fastening region that is axially displaced and projects beyond the edge of the housing part, providing a supporting function and reducing deformation by allowing partial overlapping, thus enhancing rotational speed stability and sealing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first fastening region completely overlaps the outer lateral surface of the joint housing, then the sealing function is improved, but the fold region experiences large deformations and potential bursting under high mechanical loading
Solution Approach 1:
The first fastening region is axially displaced relative to the housing part, creating a multi-dimensional fastening configuration. This axial displacement allows the fastening region to extend beyond the housing edge in the axial direction while maintaining radial sealing contact, thereby distributing mechanical loads across different spatial dimensions and reducing deformation in the fold region
2Reliability
If the first fastening region completely overlaps the outer lateral surface of the joint housing, then the sealing function is improved, but the rotational speed stability deteriorates due to high mechanical loading
Solution Approach 1:
By displacing the first fastening region axially beyond the housing edge, the patent creates a distributed fastening structure that spans multiple dimensions. This configuration reduces concentrated stresses on the fold region during rotation, thereby improving rotational speed stability while preserving sealing effectiveness through maintained radial contact
3Strength
If the first fastening region projects beyond the edge of the housing part, then the deformation of the fold region is reduced, but the overlapping area with the housing surface is decreased
Solution Approach 1:
The patent applies different functional qualities to different regions of the boot structure. The first fastening region that projects beyond the housing edge is optimized for structural support and deformation resistance, while the portion that overlaps the housing surface maintains sealing functionality. This local differentiation allows each region to perform its primary function effectively
Data Source
AI summary
A boot which has reduced deformations during operation is disclosed. The boot includes a first fastening region, wherein the first fastening region is displaced axially, with respect to the direction of a main axis of the boot, and with respect to a housing part on which the boot can be mounted, in such a way that the first fastening region at least partially projects beyond an edge of the housing part.