Rear Bumper Cover Tow Hook Opening Structure
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Solution Overview
Problem
The existing structures for rear bumper covers made from resin compromise both appearance and rigidity when forming an opening portion for a tow hook, as they either look bad or have reduced strength.
Innovation Solution
A resin cover attaching member that covers the entire outer edge of the opening portion, with a detachable hook cover that can be attached to conceal the opening when not in use, enhancing both appearance and rigidity by providing additional structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an opening portion is formed on the rear bumper cover for the tow hook, then the tow hook can be accessed, but the appearance becomes bad and rigidity is lowered
Solution Approach 1:
The solution divides the covering structure into two segments: a cover attaching member that covers the outer edge of the opening portion, and a hook cover that covers the member opening hole. This segmentation allows each part to perform its specific function - maintaining appearance and rigidity while enabling tow hook access when needed.
Solution Approach 2:
The hook cover is designed to be detachably attached to the cover attaching member, making it dynamic rather than fixed. This allows the hook cover to be attached when appearance is prioritized and detached when tow hook access is needed, resolving the contradiction between appearance and functionality.
2Ease of operation
If an opening portion is formed on the rear bumper cover for the tow hook, then the tow hook can be accessed, but the appearance becomes bad
Solution Approach 1:
The covering structure is segmented into a cover attaching member and a hook cover. The hook cover specifically addresses appearance by covering the member opening hole when attached, while the cover attaching member maintains the overall bumper cover appearance by covering the outer edge of the opening portion.
Solution Approach 2:
The detachable nature of the hook cover creates a dynamic system that can switch between covering (good appearance) and exposed (tow hook access) states, resolving the contradiction between appearance and functionality.
3Strength
If a cover is attached to cover the opening portion, then appearance and rigidity are improved, but the tow hook cannot be accessed
Solution Approach 1:
The hook cover is designed as a detachable component that can be removed when tow hook access is needed. This dynamic design allows the system to switch between the covered state (maintaining rigidity and appearance) and the accessible state (allowing tow hook use), resolving the contradiction between structural integrity and functionality.
Data Source
AI summary
An object of the invention is to provide a structure of a rear bumper cover capable of improving appearance and rigidity of the rear bumper cover. A rear bumper cover made from a resin disposed in the backward part of the vehicle forms an opening portion at the position of attachment of a tow hook. In the opening portion, a cover attaching member made from a resin which has a member opening hole capable of leaving the tow hook open is disposed with the state of covering whole the outer edge of the opening portion. On the cover attaching member, a hook cover capable of covering whole a member opening hole is detachably attached.