Vehicle Storage Lock Rotor-Rod Assembly With Easier Alignment
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Solution Overview
Problem
The existing locking device for opening-closing bodies requires complex assembly processes, particularly in aligning pins with engaging recessed portions, leading to poor workability.
Innovation Solution
A locking device design featuring a rotor with protrusion portions that fit into recessed portions of rods, allowing for improved assembly by rotating the rotor to align and connect the rods with locking portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the rotor is pushed in to engage pins with engaging recessed portions, then the rods are connected to the rotor, but the alignment work is complex and assembly workability is poor
Solution Approach 1:
Instead of pushing the rotor in to engage the pins with the recessed portions, the invention inverts the approach by having the rods move in and out relative to the stationary rotor. The accommodating portion allows the rod to slide along the protrusion portion, and engagement occurs when the rod's fitting recessed portion aligns with the rotor's protrusion portion during the rod's linear movement, eliminating the need for complex alignment during rotor insertion
Solution Approach 2:
The invention separates the rotor and rod into independent components where the rotor remains stationary and the rod moves independently through the accommodating portion. This segmentation allows the rod to be assembled separately and connected to the rotor through a simple fitting action, reducing assembly complexity and improving workability
2Reliability
If multiple components are assembled together, then the locking device functions properly, but the assembly process becomes time-consuming
Solution Approach 1:
The rod is pre-equipped with a fitting recessed portion that is designed to match the protrusion portion of the rotor. This preliminary design allows the rod to be directly fitted onto the rotor without requiring complex alignment procedures or additional assembly steps, significantly reducing assembly time while maintaining the reliability of the locking function
Solution Approach 2:
The accommodating portion with its groove structure enables the rod to self-align and self-connect to the rotor through simple linear movement. The groove guides the rod along the protrusion portion, and the fitting recessed portion automatically engages with the protrusion portion, eliminating the need for precise manual alignment and reducing assembly time
Data Source
AI summary
A locking device for an opening-closing body includes: a housing; a rotor that is rotatably supported by the housing; and at least one rod that is provided to move in and out from the housing when the rotor rotates, and that engages with and disengages from a locking portion. The housing includes an accommodating portion that slidably accommodates at least the one rod, the rotor includes a protrusion portion protruding in a rotation axis direction, and the rod includes a fitting recessed portion into which the protrusion portion is fittable. The protrusion portion is configured to be rotatable to a position where the protrusion portion escapes from a slide path of the rod with respect to the accommodating portion.