Decorative Panel Hanging Levers for Stable Indoor Unit Adjustment
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Solution Overview
Problem
Existing air-conditioning apparatuses face challenges in maintaining the temporary hanging of decorative panels during fine adjustments and dismounting, as the temporary hanging levers can unintentionally slip out of the hooks, compromising safety and stability.
Innovation Solution
The design includes levers with hook portions and shafts that are inserted through an insertion hole in the decorative panel, allowing them to be hooked onto hooks on the casing, with bearing grooves to prevent movement and maintain the hooked position, ensuring the panel remains temporarily hung during adjustments and dismounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the decorative panel is temporarily hung using conventional temporary hanging levers and hooks, then the panel can be easily installed and positioned, but the levers can unintentionally slip out of the hooks during fine adjustment or dismounting operations
Solution Approach 1:
The lever is designed to be movable within the insertion hole portion, allowing it to dynamically adjust its position while maintaining the hooked state. The shaft portions can move along the bearing groove portions, enabling the lever to accommodate panel adjustments without slipping out of the hooks
Solution Approach 2:
The lever is divided into distinct functional segments: the hook portion for engaging with hooks, the shaft portions for movement and positioning, and the operating portion for user interaction. This segmentation allows each part to perform its specific function independently, improving overall reliability
2Manufacturing precision
If the decorative panel is moved for fine adjustment while temporarily hung, then the panel position can be precisely aligned with the ceiling, but the temporary hanging levers move along with the panel causing the hooks to slip out
Solution Approach 1:
The lever's ability to move independently within the insertion hole allows the panel to be repositioned while the lever maintains its hooked connection. The shaft portions sliding along the bearing grooves enable this dynamic adjustment without losing the temporary hanging state
Solution Approach 2:
The bearing groove portions act as an intermediary mechanism between the lever shafts and the panel. They guide and constrain the movement of the shaft portions, allowing the lever to move with the panel during adjustment while preventing the hook portion from disengaging
3Ease of repair
If the decorative panel is dismounted by unfastening fixing screws after temporary hanging is cancelled, then the panel can be removed, but the panel is dismounted without temporary hanging support compromising worker safety
Solution Approach 1:
The lever is pre-configured with the hook portion ready to engage with the hooks on the casing. When the panel is lifted during dismounting, the lever automatically returns to the hooked state, providing safety support before the actual removal occurs
Data Source
AI summary
An indoor unit for an air-conditioning apparatus and an air-conditioning apparatus that include levers of a decorative panel operated through insertion hole portions, and then move vertically in the insertion hole portions by the gravity, to thereby be temporarily hung on the hooks. The levers are kept holed on hooks. The indoor unit for an air-conditioning apparatus includes a casing, a decorative panel mounted on a lower surface side of the casing and having an air inlet formed therein, the levers mounted so as to be opposed to each other on opposed two sides among four sides forming edges of the air inlet of the decorative panel, and the hooks mounted at an opening portion of the casing, to allow the levers to be hooked thereon, respectively.