Adjustable Board Storage Frame Assembly With Guided Pinion Alignment
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Solution Overview
Problem
Conventional width-adjustable board storage frames face challenges in easy assembly and accurate alignment of pinions and racks, leading to instability and increased assembly time, even for skilled individuals.
Innovation Solution
The design incorporates bosses protruding from the movable side plate that insert into grooves on the top and base plates, along with connection paths and inclined surfaces for easy alignment, and tension rods with locking mechanisms to secure the movable side plate parallel to the fixed side plate, ensuring accurate positioning and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the fixed side plate and struts are first secured to the base plate, then the assembly structure is stabilized, but the pinions on the movable side plate cannot be aligned easily with the racks and the movable side plate moves shakily and unstably during assembly
Solution Approach 1:
The patent applies preliminary action by providing guide rails that extend from the base plate to the top plate, which guide the movable side plate during assembly before the pinion-rack engagement is finalized. This preliminary guiding structure enables accurate alignment of pinions with racks before the movable side plate is fully secured, resolving the alignment difficulty while maintaining assembly stability
Solution Approach 2:
The guide rails act as an intermediary element between the base plate/top plate and the movable side plate. These guide rails provide a stable reference path that mediates the positioning of the movable side plate, enabling precise pinion-rack alignment while the movable side plate is being assembled, thus solving both the stability and precision contradictions
2Ease of manufacture
If fixtures are used to integrally and temporarily secure the fixed side plate and movable side plate to the top plate and base plate, then assembly is simplified and position alignment is achieved, but the fixtures prevent separation and require additional components
Solution Approach 1:
The guide rails serve multiple functions: they guide the movable side plate during assembly, provide structural support, enable pinion-rack alignment, and maintain stability throughout the assembly process. This multi-functionality eliminates the need for separate fixtures, simplifying assembly while avoiding additional complex components
Solution Approach 2:
The patent extracts the guiding and support functions from the concept of fixtures and integrates them directly into the guide rails that are already part of the frame structure. This eliminates the need for separate fixture components, reducing device complexity while maintaining assembly ease
3Productivity
If pinions and racks are engaged without precise alignment guidance, then the assembly process is faster, but misalignment happens easily and the movable side plate cannot move in parallel with the fixed side plate
Solution Approach 1:
The guide rails perform preliminary alignment of the movable side plate with the fixed side plate before pinion-rack engagement is completed. This preliminary positioning ensures that pinions are correctly aligned with racks, preventing misalignment issues while maintaining fast assembly speed
Solution Approach 2:
The guide rails act as an intermediary guiding structure that ensures precise pinion-rack alignment during the assembly process. By providing a defined path for the movable side plate, the guide rails mediate the positioning process, enabling both fast assembly and high alignment precision simultaneously
Data Source
AI summary
In an adjustable board storage frame, a fixed side plate 5 and a movable side plate 6 that can be moved remaining parallel with the fixed side plate 5 and fixed at a desired position are placed between a top plate 2 and a base plate 3. The adjustable board storage frame includes: pinions 21 and 22 located near the four corners of the movable side plate 6; guide rails 11A and 11B that are located on the inside surfaces of the top plate 2 and the base plate 3 and on which racks 17 and 18 for engaging with the respective pinions 21 and 22 are formed; bosses 35 protruding from positions near where the respective pinions 21 and 22 for the movable side plate 6 are formed; grooves 14 that are formed near the position where the fixed side plate 5 is located on the top plate 2 and the base plate 3, and to which the bosses 35 can be inserted respectively; and connection paths 15 that are connected to the grooves 14 respectively, and where the bosses 35 pass when the movable side plate 6 is moved.