Console Box Lid Hinge Stop to Prevent Over-Opening Detachment
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Solution Overview
Problem
Existing console boxes allow excessive opening of the lid, which can lead to unintended detachment of the lid from the box main body, compromising its secure closure.
Innovation Solution
A console box design featuring a lid pivotally coupled to a box main body with pivot shafts, shims, and operation portions, where the shims are configured to move outward in the axial direction to decouple the pivot shaft from the box main body, and an engaging groove with a step portion restricts the lid's opening beyond the fully open position, preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lid is allowed to open beyond the fully open position (excessive opening), then the opening degree is increased, but the lid may detach from the box main body contrary to user intent
Solution Approach 1:
The engaging groove with step portion is designed in advance to prevent excessive opening. When the lid reaches the fully open position, the step portion engages with the protrusion on the operation portion, creating a mechanical stop that prevents further opening and potential detachment. This preliminary anti-action mechanism ensures the lid cannot open beyond the intended range.
Solution Approach 2:
The engaging groove acts as an intermediary element between the operation portion and the box main body. It mediates the motion of the lid by providing a controlled engagement path that allows opening up to the fully open position while preventing excessive opening through the step portion, thus protecting against unintended detachment.
2Ease of operation
If the shims are made movable in the axial direction to allow decoupling, then the ease of operation is improved, but the risk of unintended detachment increases
Solution Approach 1:
The shims are designed to be dynamically movable in the axial direction rather than fixed. This dynamic characteristic allows the shims to move outward when the operation portion is actuated, enabling the pivot shaft to decouple from the box main body for easy lid removal. The movability is controlled and reversible, maintaining reliability when not in use.
Solution Approach 2:
The operation portion is designed to preliminarily move the shims outward in the axial direction before complete decoupling occurs. This preliminary action of the shims facilitates smooth separation of the pivot shaft from the box main body, making lid removal easier while ensuring controlled disengagement that prevents accidental detachment.
3Ease of manufacture
If separate shim bezels are used instead of integrated shims, then the ease of manufacture is improved, but the dimensional accuracy requirements increase
Solution Approach 1:
The shim assembly is segmented into separate components: shim bezels and shims. The shim bezels are molded separately and then assembled with the shims. This segmentation allows each component to be manufactured independently using standard molding processes, improving ease of manufacture while enabling precise fitting through separate assembly and adjustment.
Data Source
AI summary
A console box includes a box main body, a lid, and an operation portion. The lid includes a lid main body and a pivot shaft. A lid-side restricting portion is provided on each of opposite end faces of the lid main body in the axial direction of the pivot shaft. The box main body includes two shims and two accommodating recesses. Each shim includes a supporting recess and a fitting portion. Each shim includes an engaging projection. Each accommodating recess includes an engaging groove having a step portion is formed on the inner peripheral surface. The engaging groove of each accommodating recess is configured such that, when the opening degree of the lid main body is changed to the opening side from the fully open position, the engaging projection is engaged with the step portion to restrict the movement in the axial direction of the corresponding shim.