Wall Through Fixture with Spring-Loaded Latch for Temporary Holding
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Solution Overview
Problem
Existing wall through fixture devices require hand support for objects until they are securely fixed, making the fixing process elaborate and less workable, and often fail to securely attach objects to the wall.
Innovation Solution
A wall through fixture device with a case having a flange that engages the outer wall face, featuring a screw, nut, latch members, and a resilient member to securely sandwich the wall between the flange and latch members, allowing temporary fixation without hand support and enabling easy final screwing for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hand support is required to prevent the object from falling until the backup member is driven to sandwich the wall, then the object can be securely fixed, but the fixing process becomes elaborate and workability decreases
Solution Approach 1:
The latch member is pre-configured in a protruding state that automatically engages with the inner wall face when the case is inserted, eliminating the need for manual support during the fixing process. The preliminary positioning of the latch member ensures immediate securing action upon insertion.
Solution Approach 2:
The fixture device performs self-securing through the automatic engagement mechanism where the latch member protrudes and locks onto the inner wall face without requiring external hand support or additional manual operations during the insertion process.
2Ease of operation
If hand support is omitted to improve workability, then the fixing process becomes simpler, but the object cannot be securely fixed to the wall
Solution Approach 1:
The fixture device autonomously secures itself to the wall through the latch member's automatic engagement with the inner wall face, eliminating the need for hand support while ensuring reliable fixation. The device serves itself by automatically positioning and locking the latch member during insertion.
Solution Approach 2:
The latch member is pre-positioned to protrude from the case, creating an automatic engagement capability that activates immediately upon insertion into the wall, ensuring secure fixation without requiring subsequent manual support or adjustment.
3Ease of operation
If the latch member is held retracted by the resilient member to allow easy passage through the wall, then workability improves, but the object cannot be temporarily held in place
Solution Approach 1:
The latch member transitions dynamically between retracted and protruding states: retracted during insertion to facilitate easy passage through the wall, and protruding after insertion to engage with the inner wall face and provide temporary holding capability.
Solution Approach 2:
The resilient member is pre-configured to automatically propel the latch member into the protruding state after the case passes through the wall, creating immediate temporary holding capability without requiring manual intervention.
4Reliability
If the latch member protrudes to engage the inner wall face for secure fixation, then reliability improves, but the case cannot pass through the wall easily
Solution Approach 1:
The latch member dynamically changes its position from protruding (for secure fixation) to retracted (for easy passage), and back to protruding (for temporary holding) after insertion, adapting its state to the operational requirements at each stage.
Solution Approach 2:
The resilient member is pre-loaded to automatically retract the latch member before insertion and automatically propel it forward after insertion, eliminating the need for manual operation and ensuring smooth passage through the wall followed by automatic engagement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device allows for easy and secure fixation of objects to the wall by temporarily locking them in place until the latch members engage the inner wall face, ensuring the object does not fall and facilitating high workability and secure attachment.
Implementation Method 1
a resilient member (38) which urges the latch member (36) to protrude from the nut (34)
Data Source
AI summary
A pair of latch members 36R, 36L in a case 20C protrudes from an outer face of the case 20C by a spring 38 and when the case 20C is passed through a wall hole 22H, the latch members 36R, 36L are narrowed by an engagement between outer edge (guiding) slant face 36ROI, 36LOI and a wall hole 22H and after the case 20C has passed through the wall hole 22H, the latch members 36R, 36L are spread by a spring 38 so as to engage the engagement slant faces 36RLI, 36LLI with the wall hole 22H and also while fixing temporarily the case 22C to the wall 22 together with a flange 20FL of the case 22C. After that, a screw 32 is screwed to draw the nut 34 toward the flange 20FL and to engage securely the latch members 36R, 36L held to the nut 34 with the wall hole 22H to complete secure fixing of the case 20C.