Wall Cupboard Hanging Bracket Locking Against Lateral Disengagement
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Solution Overview
Problem
Existing anti-disengagement systems for wall cupboards fail to prevent accidental disengagement due to horizontal forces, which can combine with vertical upward forces, posing a risk of cupboard fall and injury, especially in low-height installations and requiring additional safety measures.
Innovation Solution
An anti-disengagement system featuring a hanging bracket with a blind set screw and side blocking elements that engage with a 'C'-shaped metal bar, preventing disengagement by locking the hook in place against both upward and lateral forces, while allowing easy dismantling by reversing the screw position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple hook system is used for wall cupboards, then ease of assembly is improved, but safety against disengagement deteriorates
Solution Approach 1:
The anti-disengagement system is divided into separate functional components: a blocking element that prevents upward movement, a lateral constraint element that prevents sideways movement, and a release mechanism. This segmentation allows each component to address specific disengagement vectors while maintaining overall system simplicity and ease of assembly.
Solution Approach 2:
The blocking and constraint elements are pre-positioned on the support bar to prevent disengagement before it can occur. The blocking element protrudes to stop upward movement, while the lateral constraint element with its protrusion prevents sideways displacement, creating preliminary resistance against potential disengagement forces.
2Reliability
If a robust locking mechanism is added to prevent disengagement, then safety is improved, but device complexity worsens
Solution Approach 1:
The constraint-releasable means are designed to automatically engage and lock into position without requiring additional tools or complex adjustment mechanisms. The system serves itself by utilizing the natural interaction between the blocking element, lateral constraint element, and support bar geometry to create automatic engagement and locking.
Solution Approach 2:
Instead of using a complex active locking mechanism that requires actuation, the system inverts the approach by using passive geometric constraints that automatically prevent disengagement. The blocking and constraint elements rely on their shape and positioning rather than active mechanical locking components.
3Reliability
If permanent fixation is used to ensure safety, then reliability is improved, but ease of disassembly worsens
Solution Approach 1:
The constraint-releasable means transition from a static permanent fixation to a dynamic system that can adapt between locked and released states. The blocking and constraint elements are designed to be held in position during normal use but can be easily released when needed, providing both security and flexibility.
Solution Approach 2:
The constraint-releasable means act as an intermediary between the hook and the support bar, providing a controllable connection state. This intermediary mechanism allows the system to maintain reliable connection during normal operation while enabling easy disassembly when required, bridging the gap between permanent fixation and temporary attachment.
Data Source
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AI summary
An anti-disengagement system for wall cupboards wherein a cupboard (29) is hooked to a support (17) fixed to the wall (18) by means of a hook (11) of a hanging bracket device (10) of the type in which reciprocal constraint-releasable means (21) are positioned between said hook (11) and said support (17), consisting of a bead (21) screwed onto said hook (11) and suitable for interfering with said support (17), is characterized in that blocking or stop elements (28) cooperate with said bead (21), against side movements of the bead (21) itself caused by horizontal forces acting on said cupboard (29).