Rack assembly with adjustable installation height of beam member
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Solution Overview
Problem
Existing rack assemblies face challenges in finely adjusting and easily changing the installation height of beam members due to the need for large protrusions, which reduces freedom of installation and can cause collisions between the crosspiece member and protrusions.
Innovation Solution
A rack assembly design featuring a column member with recessed portions and a beam member with protruding portions that can be inserted into the recessed portions, allowing for fine adjustment and easy change of the beam member's installation height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pair of protrusions are formed to have a certain largeness to perform both positioning functions, then positioning reliability is improved, but degree of freedom in installation height adjustment is reduced
Solution Approach 1:
The positioning function is segmented between the protrusions (providing lateral positioning) and the recessed portions (providing axial positioning). This segmentation allows the protrusions to be smaller since they only need to provide lateral positioning, thereby increasing installation height adjustment freedom while maintaining positioning reliability.
Solution Approach 2:
The solution introduces a new dimension for positioning by adding recessed portions that extend in the normal direction of the second side surface (axial direction). This multi-dimensional positioning approach allows the protrusions to be reduced in size while maintaining overall positioning reliability through the combination of lateral positioning by protrusions and axial positioning by recessed portions.
2Reliability
If the pair of protrusions are formed to have a certain largeness to perform both positioning functions, then positioning reliability is improved, but the crosspiece member and protrusions may collide, making height change difficult
Solution Approach 1:
By segmenting the positioning functions between protrusions and recessed portions, the protrusions can be made smaller, eliminating collision issues during height adjustment while maintaining positioning reliability through the combined positioning system.
Solution Approach 2:
The axial positioning function is extracted from the protrusions and assigned to the recessed portions. This extraction allows the protrusions to be reduced in size, preventing collisions during operation while the recessed portions handle axial positioning, thus improving ease of height adjustment.
3Strength
If the pair of protrusions are formed to have a certain largeness, then positioning strength is improved, but the number of adjustable height positions is reduced
Solution Approach 1:
The positioning strength is segmented between protrusions (lateral direction) and recessed portions (axial direction). This allows the protrusions to be smaller since they only need to provide lateral positioning strength, while the recessed portions provide axial positioning, enabling finer height adjustment precision without compromising overall positioning strength.
Solution Approach 2:
By adding axial positioning through recessed portions that extend in the normal direction of the second side surface, the system achieves positioning strength in multiple dimensions. This allows smaller protrusions and finer height adjustment precision while maintaining overall positioning strength through the multi-dimensional positioning system.
Data Source
AI summary
A rack assembly includes a column member including a first side surface that includes a plurality of recessed portions provided at a regular interval in an axial direction, and a second side surface that is adjacent to the first side surface, and a beam member including a first part that includes a protruding portion and that faces the first side surface, and a second part that is provided adjacent to the first part and that faces the second side surface, where each of the plurality of recessed portions extends in a normal direction of the second side surface, and the beam member is movable between a first position at which the second part faces the second side surface in a state where the beam member is separated from the column member, and a second position at which the beam member is fixed to the column member.