Vehicle Holding Device Absorbs Rotational Moments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hook devices in vehicles experience deformation over time due to rotational moments from loads, leading to rattling against the mount member.
Innovation Solution
A holding device with a rotatable bag hooking member and a base member that includes a frame portion, claw portion, and erect portion, where the bag hooking member transitions between a protruding and stowed state, and the claw portion is locked onto the mount member, absorbing rotational moments to prevent deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hook member is supported rotatably on a base member to enable rotation, then the ease of operation is improved, but the stability of the object's composition deteriorates due to deformation over time
Solution Approach 1:
The base member is divided into functionally distinct components: a frame portion that provides structural support, a claw portion that engages the mount member, and an erect portion that reinforces the connection. This segmentation allows each part to perform its specific function optimally while contributing to overall structural stability.
Solution Approach 2:
The claw portion is designed with a curved, arc-like shape that extends from the frame portion. This curved geometry provides mechanical advantage in engaging with the mount member, allowing the claw to effectively absorb and distribute rotational moments through its curved profile, thereby preventing deformation at the connection point.
2Ease of operation
If the hooking piece is positioned on the upper side of the base member to enable hooking, then the ease of operation is improved, but the reliability deteriorates due to rattling against the mount member
Solution Approach 1:
The claw portion acts as an intermediary element between the rotating bag hooking member and the fixed mount member. It mediates the interaction by providing a stable engagement point that absorbs rotational forces, preventing direct transmission of rattling vibrations to the mount member while maintaining effective hooking functionality.
3Strength
If the base member is mounted in a mounting hole to secure the device, then the strength is improved, but the stability deteriorates due to deformation of the base member over time
Solution Approach 1:
Different regions of the base member are designed with locally optimized properties: the frame portion has a structure optimized for overall strength and mounting, while the claw portion has a curved geometry optimized for absorbing rotational moments. This local quality differentiation ensures that each area performs its specific function optimally, maintaining both strength and resistance to deformation.
Data Source
AI summary
There is provided a holding device mounted in a mounting hole in a mount member to hold a predetermined member. A base member is mounted in the mounting hole. A bag hooking member is supported rotatably on the base member. The bag hooking member has a holding portion that takes, depending on its rotational positions, a protruding state and a stowed state and that holds the predetermined member in the protruding state. The base member has a frame portion surrounding the bag hooking member, a claw portion extending from one side of the frame portion to be locked on a rear side portion of the mount member, and an erect portion erected from the one side of the frame portion to be locked on the rear side portion in a position lying nearer to the mounting hole than a distal end of the claw portion.