Glove Compartment Latch Mechanism Side Access Restriction
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Solution Overview
Problem
Existing glove compartments can be vulnerable to theft as the latch mechanism can be shifted from the closed state to the open state by operating the engaging member from the side surface, even with a lock mechanism in place, allowing unauthorized access and removal of articles.
Innovation Solution
Incorporating an operation restriction body that prevents the engaging member from being disengaged from the engaged portion from the side surface, ensuring the latch mechanism remains in the closed state unless the operation unit is used, thereby enhancing security by requiring authorized operation to open the glove door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the latch mechanism is designed to be operable from the side surface for easy maintenance, then the ease of repair is improved, but the security against theft deteriorates
Solution Approach 1:
The side panel is separated from the main compartment body, allowing it to be removed for maintenance while the engagement mechanism remains protected within the compartment body. This segmentation enables independent access for maintenance without exposing the security-critical engagement components.
Solution Approach 2:
The operation restriction body acts as an intermediary element that blocks direct access to the engagement mechanism from the side surface. It mediates between the need for maintenance access and the need for security, allowing controlled access only through the proper operation unit.
2Ease of operation
If the engaging member is accessible from the side surface, then the ease of operation is improved, but the reliability of the lock mechanism deteriorates
Solution Approach 1:
Instead of making the engagement mechanism accessible from the outside for ease of operation, the design inverts the approach by requiring operation through the interior operation unit. The engagement mechanism is made inaccessible from the side surface, and operation must be performed through the proper channel via the operation unit.
Solution Approach 2:
The operation restriction body serves as an intermediary that prevents direct manipulation of the engagement mechanism from the side surface. It ensures that operation can only occur through the designated operation unit, maintaining both ease of operation through proper use and reliability against unauthorized access.
3Adaptability or versatility
If the side panel is made removable for maintenance access, then the adaptability is improved, but the security against unauthorized access deteriorates
Solution Approach 1:
The side panel is segmented as a separate removable component, allowing maintenance personnel to remove it for accessing internal components. However, the engagement mechanism is positioned and protected within the compartment body so that removing the side panel does not expose the security-critical components to unauthorized manipulation.
Solution Approach 2:
The operation restriction body acts as a permanent intermediary structure that remains in place even when the side panel is removed. It continues to block access to the engagement mechanism, ensuring that maintenance access through side panel removal does not compromise security against unauthorized access.
Data Source
AI summary
A latch mechanism is configured to be shifted between a closed state in which a glove door is held on a compartment body at a closed position and an open state in which the glove door is not held on the compartment body. An operation lever is operated to shift the lock mechanism from the closed state to the open state. When the latch mechanism is shifted to the closed state, the first engaging member is engaged with the engagement hole. When the latch mechanism is shifted to the open state, the first engaging member is disengaged from the engagement hole. The compartment body includes an operation restriction wall that restricts operation of the first engaging member from the side surface of an instrument panel or the side surface of the compartment body so that the first engaging member is not disengaged from the engagement hole.