Vehicle Tool Case Fixing Structure Using Weld Stud Bolts
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Solution Overview
Problem
Existing tool case structures for vehicles often cause damage to the spare tire rim and fail to securely fix large tools like jacks, leading to noise and potential damage, and they lack space for a tool case in concept cars with batteries, where the spare tire's space is insufficient.
Innovation Solution
A tool case fixing structure using weld stud bolts and fasteners installed on the vehicle body, with a case body inserted into the side of the spare tire, featuring tool grooves and visible fasteners to prevent separation and provide secure fixation, allowing for installation in the side space of the spare tire and behind the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tool case is inserted into the inner space of the spare tire wheel with frictional contact, then the tool case can be stored, but it causes damage to the rim and cannot securely fix large tools
Solution Approach 1:
The patent introduces a dedicated fastening structure consisting of weld stud bolts and fasteners as an intermediary mechanism between the tool case and the vehicle body. This mediator enables secure fixation without relying on frictional contact with the spare tire rim, thereby preventing rim damage while ensuring stable tool case installation.
Solution Approach 2:
The fixation system is segmented into distinct functional components: weld stud bolts fixed to the vehicle body, fasteners that engage with the tool case, and the tool case itself. This segmentation allows each component to perform its specific function optimally - the weld stud bolts provide anchor points, the fasteners provide adjustable securing, and the tool case provides storage - without compromising the spare tire or rim.
2Adaptability or versatility
If the tool case is designed to fit around the spare tire, then it can store various tools, but it requires separate manufacturing for different spare tire types and lacks space in vehicles with batteries
Solution Approach 1:
The tool case is designed with universal mounting capability through standardized fastener holes that can accommodate different fastener configurations. The fastening system using weld stud bolts and fasteners provides a universal interface that can be adapted to various vehicle platforms, including concept cars with batteries, eliminating the need for separate tool case designs for different spare tire types.
Solution Approach 2:
The patent transitions from a two-dimensional radial mounting approach (around the spare tire wheel) to a three-dimensional side-space mounting approach (along the vehicle body side). This dimensional change utilizes previously underutilized side space between the spare tire and vehicle body, providing adequate installation space even in vehicles with batteries while maintaining tool case accessibility.
3Volume of moving object
If the tool case is installed in the side space of the spare tire, then spatial utility is improved, but the tool case may separate and fall without proper fixation
Solution Approach 1:
The weld stud bolts are pre-fixed to the vehicle body at predetermined locations in the side space before tool case installation. This preliminary action creates ready-made anchor points that ensure reliable fixation when the tool case is installed, preventing separation and falling while utilizing the available side space effectively.
Solution Approach 2:
The fasteners serve as intermediary elements that connect the tool case to the pre-installed weld stud bolts. This intermediary mechanism provides reliable fixation in the side space configuration, ensuring the tool case remains securely attached while allowing for proper installation and maintenance access.
Data Source
AI summary
A tool case fixing structure of a vehicle includes at least two weld stud bolts located on a floor panel of a vehicle body and formed at a front end and a rear end in a length direction of a vehicle, a case body inserted into one side of a spare tire of the vehicle and having a plurality of tool grooves formed to insert a tool into the tool grooves, at least two fastener holes formed on the case body corresponding to locations of the weld stud bolts, and at least two fasteners formed corresponding to locations of the fastener holes and configured to be fastened with the weld stud bolts to fix the case body to the vehicle body.