Rear-Mounted Lock Device with Hook and Claw for Simplified Assembly
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Solution Overview
Problem
The existing lock device for openable and closable members, such as glove box lids, has a complex mounting process due to the need to mount the housing from the front side and rods from the rear side, making it cumbersome and troublesome.
Innovation Solution
A lock device design where a base member is fixed to either the outer or inner member of the openable and closable member, with an operation member supported rotatably on the base member, and a rod that engages and disengages from a locking portion in association with the operation member's rotations, featuring a hook portion and locking claw to secure the base member in place, allowing all components to be mounted from the rear side for easier assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is mounted from the front side and rods are mounted from the rear side, then the lock device achieves secure installation, but the mounting process becomes complex and troublesome
Solution Approach 1:
The patent combines the housing mounting and rod mounting operations into a single unified mounting process. The housing is designed with integrated mounting structures (engaging claws and projecting pieces) that secure both the housing itself and the rods simultaneously when mounted from the rear side only, eliminating the need for separate front-side and rear-side mounting operations.
Solution Approach 2:
The patent inverts the conventional mounting approach by mounting the housing from the rear side instead of the front side. This inversion allows the mounting operations to be performed from a single accessible side, simplifying the overall mounting process while maintaining secure installation through the engaging claws that hook onto the rear edge of the mounting hole.
2Reliability
If the housing is mounted from the front side, then the housing can be securely fixed, but the front side of the member is at risk of damage and the mounting process is more difficult
Solution Approach 1:
The patent inverts the mounting direction by mounting the housing from the rear side instead of the front side. The engaging claws are designed to hook onto the rear edge of the mounting hole, providing secure fixation without requiring access to or potential damage to the front side of the member. This inversion simplifies the mounting process by allowing all operations to be performed from the rear side.
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
This design simplifies the mounting process by allowing all components of the lock device to be installed from the rear side, reducing complexity and risk of damage to the front side of the member, while maintaining secure locking functionality.
Implementation Method 1
the engaging claws are passed through the mounting hole while being flexed. The engaging claws are then allowed to expand to restore by virtue of a restoring force after they have passed through the mounting hole
Implementation Method 2
a locking claw portion configured to be locked on a locking edge portion formed on a rear side of the outer member to restrict the base member from moving in a direction in which the base member moves away from a rear surface of the outer member
Data Source
AI summary
A lock device for holding an openable and closable member mounted on an opening portion of a fixed member, includes a base member, an operation member, and a rod. The operation member has an operating portion exposed to a front side of an outer member, and a pivotally supporting portion pivotally supported on the base member. The base member has a hook portion configured to be hooked on a mounting edge portion formed on the outer member, and a locking claw portion configured to be locked on a locking edge portion formed on a rear side of the outer member to restrict the base member from moving in a direction in which the base member moves away from a rear surface of the outer member.