Automobile Glove Box Lock Rod Assembly Positioning
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Solution Overview
Problem
The existing glove box locking mechanism for automobiles lacks a precise method to determine the assembly position of dual lock rods, leading to erroneous assembly and inconsistent locking or releasing of both sides of the glove box door.
Innovation Solution
Incorporating an assembly positioning groove in the first lock rod and an assembly positioning protrusion on the second lock rod, which aligns to determine the assembly position, ensuring equal protruding lengths and synchronized sliding motion with a geared rotating member for simultaneous locking or releasing of both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two rods are assembled without assembly positioning features, then the locking device structure is simple, but erroneous assembly occurs and the rods cannot be simultaneously locked or released
Solution Approach 1:
An assembly positioning groove is introduced as an intermediary feature on the first rod and an assembly positioning protrusion on the second rod. These positioning features act as mediators that guide the rods into correct relative positions during assembly, ensuring that both rods protrude by equal lengths and can be simultaneously locked or released, thereby resolving the reliability issue without significantly complicating the overall structure
Solution Approach 2:
The assembly positioning groove and protrusion are pre-formed on the rods before final assembly. This preliminary positioning action ensures that when the rods are installed in the glove box door, they automatically assume the correct relative positions, preventing erroneous assembly and enabling synchronized locking and releasing operations
2Manufacturing precision
If the two rods are allowed to assemble freely without positioning constraints, then the assembly process is fast and simple, but the protruding lengths of the rods are inconsistent
Solution Approach 1:
The assembly positioning groove and protrusion serve as guiding intermediaries that automatically align the two rods during the assembly process. This mechanical guidance ensures precise positioning and equal protruding lengths without requiring complex measurement or adjustment procedures, thereby maintaining assembly speed while improving precision
Solution Approach 2:
The positioning features enable the rods to self-align and self-position during assembly. The groove and protrusion automatically engage to establish the correct relative position, eliminating the need for external positioning tools or complex assembly procedures, thus achieving high precision without significant time loss
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 solution ensures accurate assembly and synchronized operation of the lock rods, allowing for precise simultaneous locking and releasing of both sides of the glove box door, preventing erroneous assembly and enhancing operational reliability.
Implementation Method 1
the two rods protrude an outer side of the glove box door by an elastic force of a spring disposed inside the glove box door
Data Source
AI summary
Disclosed is a glove box for an automobile. The glove box for an automobile includes a glove box door which is open/closed; a first lock rod including an end protruding to a side of the glove box door in the glove box door to lock the side of the glove box door; and a second lock rod including an end protruding to an opposite side of the glove box door in the glove box door to lock the opposite side of the glove box door.