Bag Hook Concealed Fastener Design for Tool-Free Vehicle Installation
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Solution Overview
Problem
Existing bag hooks in vehicles require third-party fixings such as threaded bolts or screws, which are time-consuming and costly to install, and limit retro-fitting and user-serviceability.
Innovation Solution
A bag hook design that allows for third-party fixing-free attachment to a vehicle chassis using a concealed fastener system, featuring a boss with locating lips and resilient tongues for secure fitment without additional fixings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded bolts or screws are used to fasten the bag hook to the body in white, then the bag hook can be securely fastened, but the installation becomes time-consuming and costly
Solution Approach 1:
The patent extracts the fastening function from separate third-party fixings (bolts, screws) and integrates it into the bag hook assembly itself through the concealed fastener system. The fastening mechanism is built into the product structure, eliminating the need for separate fastening components and reducing installation time while maintaining secure attachment.
Solution Approach 2:
The concealed fastener system enables the bag hook to self-fasten to the body in white without requiring external tools or separate fastening operations. The fastening mechanism is designed to be activated by the installer simply by positioning and pressing the bag hook into place, making the fastening process self-service rather than requiring additional tools or complex procedures.
2Strength
If threaded bolts or screws are used to fasten the bag hook, then secure attachment is achieved, but device complexity increases due to additional fixings and tools required
Solution Approach 1:
The patent merges the bag hook body with the concealed fastening mechanism into a single integrated assembly. The fastening function is combined with the structural components of the bag hook, eliminating the need for separate bolts, screws, or other third-party fixings. This integration reduces the number of parts and simplifies the overall fastening system while maintaining secure attachment capability.
Solution Approach 2:
The concealed fastener system serves multiple functions within a single integrated structure: it provides structural support for the bag hook, enables secure attachment to the body in white, and allows for tool-free installation and removal. This multi-functionality reduces the need for separate specialized components and simplifies the overall system.
3Ease of operation
If third-party fixings are pre-provided in the body in white, then bag hook attachment is enabled, but manufacturing complexity and cost increase
Solution Approach 1:
The concealed fastening mechanism is pre-integrated into the bag hook assembly during manufacturing, eliminating the need for separate pre-installation of threaded fixings in the body in white. The fastening capability is prepared in advance as part of the bag hook product itself, simplifying both the manufacturing process and the installation procedure at the vehicle assembly stage.
Solution Approach 2:
The patent extracts the fastening function from the body in white structure and relocates it to the bag hook assembly. Instead of requiring pre-installed threaded holes or fixings in the vehicle body, the concealed fastener is built into the bag hook, simplifying the body in white manufacturing while enabling easy attachment.
4Strength
If threaded bolts or screws are used for bag hook attachment, then secure fastening is achieved, but retro-fitting becomes difficult as pre-located fixings are required
Solution Approach 1:
The patent extracts the fastening requirement from the body in white structure, allowing the bag hook to be self-contained with its own concealed fastening mechanism. This enables retro-fitting to locations without pre-installed threaded fixings, as the bag hook brings its own attachment capability with it.
Solution Approach 2:
The concealed fastener system enables the bag hook to self-fasten at any location where the body in white has a suitable recess or mounting surface, without requiring pre-installed threaded bolts or screws. The self-service fastening capability provides flexibility for retro-fitting and custom installation locations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy, tool-free installation and removal of the bag hook, allowing for retro-fitting and user-serviceability, while reducing manufacturing complexity and costs.
Implementation Method 1
the boss comprises at least one locating lip and at least one resilient tongue
Data Source
AI summary
Disclosed is a bag hook that is suitable for third-party fixing-free attachment to a plate structure. The bag hook includes a hook member and a boss connected to the hook member. The boss comprises at least one locating lip and at least one resilient tongue.