Showcase Lamp Socket Structure for Stable Shelf Mounting
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Solution Overview
Problem
The existing systems for illuminative lamps in showrooms face challenges with feeder line exposure, unsightly appearance, and cumbersome replacement operations due to loose connections and insecure attachment methods, leading to potential socket detachment and instability during lamp replacement.
Innovation Solution
The design incorporates a pair of sockets with a housing and lid member that securely engage with the main body, featuring an auxiliary engagement portion to enhance stability and prevent socket disengagement, along with a connecting portion that allows terminal insertion at a right angle, ensuring secure electrical connection and improved operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the feeder line is fixed with predetermined looseness to allow lamp attachment/detachment, then the operability of attaching or detaching the illuminative lamp is improved, but the feeder lines sag downward and are exposed on the front surface of the showroom, resulting in unfavorable appearance
Solution Approach 1:
The patent introduces a socket as an intermediary component between the feeder line and the illuminative lamp. The socket is fixed to the showroom structure, and the lamp connects to it via engagement of terminal portions. This mediator allows the lamp to be attached or detached without moving the feeder line, thus maintaining a neat appearance while preserving operational ease.
2Stability of the object's composition
If the illuminative lamp is fixed by holding it with clips or similar devices attached to the showroom structure, then the lamp is securely positioned, but the long lamp needs to be detached or attached to multiple clips along its length, making the replacement operation troublesome
Solution Approach 1:
The patent segments the fixation function into two parts: the socket (fixed to the structure) and the lamp's terminal portion (engaging with the socket). This segmentation allows the lamp to be secured at its ends without requiring multiple attachment points along its length, simplifying the replacement operation while maintaining stability.
Solution Approach 2:
Instead of attaching clips to the lamp and fixing them to the structure (conventional approach), the patent inverts the approach by fixing the socket to the structure and having the lamp's terminal portion engage with it. This inversion simplifies the replacement process as the lamp can be directly engaged or disengaged from the socket without manipulating multiple clips.
3Ease of manufacture
If the screw fixing direction is parallel to the lamp attaching/detaching direction (both vertical to shelf lower surface), then the socket main body can be easily fixed, but repeated attaching/detaching operations cause the screws to loosen and the socket main body to fall
Solution Approach 1:
The patent applies asymmetry by orienting the screw fixing direction perpendicular to the lamp attaching/detaching direction. Specifically, the screw is inserted from the side of the socket main body rather than from above/below. This asymmetric configuration ensures that the screw tightening force acts perpendicular to the detachment force, preventing screw loosening during repeated operations while maintaining ease of assembly.
Data Source
AI summary
An object is to provide a showcase capable of realizing a stable attaching operation of sockets and a replacement operation of an illuminative lamp, the showcase provided with the illuminative lamp having terminals at opposite end portions, respectively, includes a pair of sockets which connect the illuminative lamp to a power source of a main body, each socket includes a housing having an opening in at least a surface on an illuminative lamp side, and a lid member to block the opening of the housing in a state in which the terminals are allowed to enter the housing, the housing has a connecting portion to store a power supply portion internally connected to the terminal, and a holding protrusion moved in a direction disengaging from the illuminative lamp to engage with a lower surface of a shelf, and the lid member is fixed to the lower surface of the shelf by a screw in a state in which the lid member blocks the opening of the housing which holding protrusion is engaged with the lower surface of the shelf.