Glove Box Lid Lock Pin Slope Mechanism
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Solution Overview
Problem
Existing glove box lid opening and closing systems face difficulties in opening the lid due to frictional forces between the lid and the recess, especially when the lid is distorted or warped, leading to ineffective use of the pushing force from the operation button.
Innovation Solution
A lid opening and closing system that includes a lock pin with a slope on the peripheral edge of the lid, a push button, a pushing element, and a link unit, where the pushing element moves in an opposite direction to the push button to contact the lock pin and impart a force both for releasing the locked state and opening the lid, ensuring effective opening even with frictional forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lid is distorted or warped, then frictional force is exerted between the peripheral edge of the recess and the lid, but the lid is not opened by gravity
Solution Approach 1:
The pushing element is positioned to contact the lock pin before the lid opening operation is initiated. When the operation button is pushed, the pushing element immediately applies force to the lock pin to overcome the frictional force generated by lid distortion, ensuring the lid can be opened reliably even under adverse conditions.
2Ease of operation
If the push button is pushed to transform the pushing force via the push pin, then the engagement members are caused to retreat, but the force acting in the direction in which the lid is opened is weakened
Solution Approach 1:
The patent extracts the force transformation function from the push pin and relocates it to the pushing element with its inclined surface. This allows the pushing force from the operation button to be directly and effectively transmitted to the lock pin without the force loss that occurs in the prior art's multi-stage transformation mechanism.
Solution Approach 2:
Instead of transforming the pushing force through multiple intermediate elements as in the prior art, the patent inverts the approach by having the pushing element directly contact the lock pin with its inclined surface, maintaining force effectiveness throughout the operation.
3Ease of operation
If two tapered surfaces are involved in the pushing action, then the engagement members are caused to retreat, but the pushing force of the operation button is made difficult to act effectively
Solution Approach 1:
The patent extracts one of the two tapered surfaces from the system, retaining only the inclined surface on the pushing element. This eliminates the force loss associated with multiple tapered surface interactions while maintaining the essential function of causing engagement members to retreat and opening the lid.
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
The system ensures smooth and effective opening of the lid by applying a force in the direction of opening when the lock pin is pulled out of the engagement hole, overcoming frictional forces and ensuring reliable operation.
Implementation Method 1
a slope is provided at least one of contacting surfaces of the lock pin and the pushing element
Implementation Method 2
when a frictional force is exerted between a peripheral edge of the recess on the automobile side and the lid
Data Source
AI summary
According to an aspect of the present invention, there is provided a lid system including: a lid mounted to a recess to be opened and closed; a locking unit that retains the lid in a locked state to keep the lid closed; and a lock releasing unit that releases the locked state to open the lid. The locking unit includes: a pin that is protruded from a peripheral edge of the lid to be engaged with a hole on the recess in the locked state and retreated to release the locked state. The lock releasing unit includes: a push button pushable in a pushing direction; and a pushing element moved to push the lock pin in an opposite direction of the pushing direction by being linked with the push button.