Underrun Protector Mounting Structure With Adjustable Rib Bracket
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing underrun protector mounting structures require different supporting members for varying vehicle body frames, leading to increased parts and potential breakage during collisions due to uneven ground clearance and impact loads.
Innovation Solution
An underrun protector mounting structure featuring a support part with ribs that can be fitted into rib receiving parts on a bracket, allowing for adjustable mounting height without tools, enabling the use of a single underrun protector across multiple vehicles with different ground clearances, and enhancing rigidity and strength by separate plate-like parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different supporting members are prepared for each vehicle body frame to adjust ground clearance, then the mounting height can be adjusted, but the number of parts is increased
Solution Approach 1:
The support part with rib structure is designed to be universally applicable across different vehicle body frames. By providing multiple rib receiving parts at different heights on a single bracket, the same bracket can accommodate various ground clearance requirements without needing different supporting members for each vehicle type.
Solution Approach 2:
The bracket is segmented into multiple rib receiving parts positioned at different heights. This segmentation allows selective attachment of the support part at different vertical positions, enabling height adjustment while using a single integrated bracket structure rather than multiple separate supporting members.
2Adaptability or versatility
If fastening members are used to adjust mounting height, then the mounting height can be adjusted, but the connection performance deteriorates under impact load
Solution Approach 1:
The rib and rib receiving part form a curved, interlocking fit structure that provides mechanical strength. The rib fits into the rib receiving part in a manner that creates a rigid connection resistant to impact loads, replacing the weaker fastening member connection while maintaining height adjustability.
Solution Approach 2:
The rib receiving parts are pre-formed at specific heights on the bracket during manufacturing. This preliminary preparation eliminates the need for additional fastening members and assembly steps, as the support part can be directly attached at the desired height through the rib-fit connection, ensuring both strength and adjustability.
3Device complexity
If the underrun protector is directly attached to the bracket, then the structure is simplified, but positioning becomes difficult
Solution Approach 1:
The support part with rib structure serves as an intermediary between the bracket and the underrun protector. The rib fits into the rib receiving part on the bracket to establish precise positioning, while the support part provides a separate attachment surface for the underrun protector, simplifying the overall structure while enabling easy positioning.
Data Source
AI summary
An underrun protector mounting structure 3 includes: a chassis frame 4; a front underrun protector 5 which is disposed at the front or rear of the chassis frame 4 and extended in a lateral direction of the vehicle; a bracket 6 for fixing the front underrun protector 5 to the chassis frame 4; and a support part 7 interposed between the front underrun protector 5 and the bracket 6. The support part 7 has ribs 46 projected toward the bracket 6 and extended along the lateral direction of the vehicle. The bracket 6 has a plurality of rib receiving parts 30 which are formed approximately parallel to each other in a vertical direction of the vehicle with a space therebetween and which fit to the ribs 46. A mounting height of the support part 7 relative to the bracket 6 is set by selecting and fitting one of the plurality of rib receiving parts 30.