Display Stand Asymmetry Prevents Reverse Attachment
Solution Overview
Problem
Display devices with two stands face challenges in preventing incorrect orientation attachment, leading to potential falling, and manufacturing costs are increased due to differentiated components for right and left configurations, while also facing rigidity issues with thinner designs.
Innovation Solution
The display device incorporates a design with two stands that have strut portions and fixing portions with specific projections and grooves, ensuring correct orientation through reverse positioning of components and enhancing rigidity by using symmetrically shaped attaching portions and strut extensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two stands are provided with differentiated components for right and left configurations to prevent incorrect orientation attachment, then the reliability of preventing wrong attachment is improved, but the manufacturing cost increases due to requiring different components
Solution Approach 1:
The patent applies asymmetry by providing the first stand with a first configuration and the second stand with a second configuration that is different from the first configuration. Specifically, the first stand has a fastening portion and a limiting portion positioned at specific locations, while the second stand has corresponding portions positioned differently. This asymmetric design ensures that each stand can only be attached to its designated position on the housing, preventing incorrect orientation attachment while maintaining manufacturing efficiency through standardized component designs.
2Volume of moving object
If the display device is made thinner by narrowing the strut portion and miniaturizing the attaching portion, then the portability and aesthetic appearance are improved, but the strength and rigidity of the stand and attaching portion decrease leading to frequent deformation
Solution Approach 1:
The patent applies nesting by having the limiting portion of each stand extend into the fastening portion of the housing. Specifically, the limiting portion is inserted into a corresponding recess in the fastening portion, creating a nested structure that provides mechanical interlocking. This nested design allows the attaching portion to be miniaturized and the display device to be made thinner while maintaining sufficient strength and rigidity through the interlocking mechanism that prevents deformation.
3Ease of manufacture
If a single fastening portion is used for both stands to reduce component variety, then manufacturing cost is reduced, but the ability to prevent incorrect orientation attachment is weakened
Solution Approach 1:
The patent applies local quality by providing different configurations of fastening portions and limiting portions at different locations on the housing. While the basic component structure can be standardized, the specific geometric characteristics, positions, and orientations of these components vary locally for each stand position. This allows using standardized manufacturing processes while ensuring that each stand's limiting portion only fits into its corresponding fastening portion, preventing incorrect orientation attachment.
Data Source
AI summary
The display device includes two stands 1 that support a chassis (holder). The stand has a strut, and the strut is fixed to the chassis with a fixing portion that encloses a back side and both horizontal sides of the strut. A first projected portion, which projects toward the strut, is formed on a second plate-like member positioned at one side of the strut, and a second projected portion, which projects at a position nearer to the back compared to the first projected portion, is formed on a third plate-like member positioned at the other side. Between the two fixing portions, positions of the second plate-like member and the third plate-like member are in reverse to each other. Due to difference in the positions of the first projected portion and the second projected portion, the two stands cannot be attached at reverse positions. Once the orientation of one fixing portion is reversed, one fixing portion becomes the other fixing portion, and the two fixing portions are common components.