Vehicle Lid Lock Device Side Protrusion Manual Release
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Solution Overview
Problem
Existing lid lock devices for vehicles are bulky in the movement direction of the lock member, limiting their arrangement flexibility and space efficiency, especially when a built-in driving source fails and manual operation is required.
Innovation Solution
A lid lock device with a housing fixed to the vehicle, a lock member that is linearly movable, and a protrusion on the lock member that passes through a side surface through-hole to receive manual operation force, allowing compact movement and operation even when the built-in driving source fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hook portion is provided in the rear end portion of the lock member to receive manual operation force, then the lock member can be manually operated to release the lock, but the entire lid lock device becomes bulky in the movement direction of the lock member
Solution Approach 1:
The protrusion is positioned on the side surface of the lock member rather than at the rear end, changing the spatial dimension where manual operation force is applied. This side surface positioning allows the manual operation interface to extend perpendicular to the movement direction, reducing the length requirement in the movement direction while maintaining manual operability.
Solution Approach 2:
Instead of extending the manual operation interface in the movement direction (traditional hook portion at rear end), the invention inverts the approach by positioning the protrusion on the side surface, effectively reversing the spatial orientation of the manual operation interface relative to the movement direction.
2Adaptability or versatility
If the lid lock device is made compact in the movement direction of the lock member, then the degree of freedom of arrangement in the vehicle is improved, but the manual operation interface becomes harder to access
Solution Approach 1:
The manual operation interface (protrusion) is positioned on the side surface of the lock member, changing from a longitudinal arrangement (in movement direction) to a lateral arrangement (perpendicular to movement direction). This dimensional change allows compactness in the movement direction while maintaining accessibility of the manual operation interface from the side.
Solution Approach 2:
The protrusion on the side surface serves dual purposes: it acts as the manual operation interface for releasing the lock and simultaneously functions as a positioning element within the housing. This multi-functionality reduces the need for separate components, contributing to compactness while maintaining operational accessibility.
Data Source
AI summary
A lid lock device includes: a housing configured to be fixed to a vehicle; a lock member configured to be movably assembled in the housing and to lock a lid of the vehicle in a closed state; a driving source configured to be assembled in the housing and to drive the lock member toward a side where the lock is released; a side surface through-hole formed at a position that opposes a side surface of the lock member in the housing; and a protrusion which is formed in a side surface of the lock member, passes through the side surface through-hole to protrude from the housing, and receives a manual operation force for moving the lock member toward the side where the lock is released.