Hidden Cupboard Hanging Bracket With Anti-Disengagement Screw Lock
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Solution Overview
Problem
Existing hidden hanging brackets for wall cupboards are prone to accidental disengagement due to upward and lateral forces, especially when assembled at low heights, posing a risk to objects and people, and current anti-disengagement systems can be complicated to assemble and may not function effectively due to interference with wall fixings.
Innovation Solution
A hidden hanging bracket with a perfected anti-disengagement system featuring a screw with a threaded section, tip, and shaped head that engages a horizontal flap on the wall support, forming side stops to prevent disengagement from upward and lateral forces, while allowing easy assembly and disassembly by positioning the screw to avoid interference with wall fixings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hidden hanging bracket is used for wall cupboards, then the assembly is simple and aesthetic, but the bracket is prone to accidental disengagement from upward and lateral forces
Solution Approach 1:
The anti-disengagement system is segmented into distinct functional elements: a bead for vertical force resistance, side blocking elements for lateral force resistance, and a shaped head screw for assembly. This segmentation allows each element to specialize in resisting specific directional forces while maintaining overall system simplicity.
Solution Approach 2:
The bead is pre-positioned on the hook before assembly, and the side blocking elements are pre-configured on the support. During assembly, these elements automatically engage to prevent disengagement before any forces are applied, providing preliminary protection against both upward and lateral forces.
2Reliability
If an anti-disengagement system with a bead is added to prevent upward forces, then safety against upward disengagement is improved, but the system becomes more complex and may interfere with wall fixings
Solution Approach 1:
The anti-disengagement function is merged with the existing hook structure by integrating the bead directly onto the hook and the side blocking elements onto the support. This merging eliminates the need for separate anti-disengagement components, maintaining simplicity while providing comprehensive protection.
Solution Approach 2:
The shaped head screw acts as an intermediary element that facilitates the assembly process. Its specific geometry allows the bead to be properly positioned and engaged with the support without interfering with wall fixings, mediating between the anti-disengagement requirement and the assembly simplicity requirement.
3Reliability
If side blocking elements are added to prevent lateral forces, then protection against lateral disengagement is improved, but the device complexity increases
Solution Approach 1:
The side blocking elements are designed with specific local geometries that match corresponding features on the support. This local quality optimization allows the elements to effectively resist lateral forces through precise geometric engagement without requiring complex overall structures.
Solution Approach 2:
The side blocking elements serve multiple functions: they resist lateral forces, guide the assembly process, and work in conjunction with the bead to provide comprehensive disengagement protection. This multi-functionality reduces the need for separate components for each function.
4Reliability
If the bead is positioned to engage the support for anti-disengagement, then safety is improved, but the bead may interfere with wall fixing screws during assembly
Solution Approach 1:
The shaped head screw introduces a new dimensional aspect to the assembly process. Its specific head geometry allows it to navigate around the bead during assembly, enabling the bead to engage the support effectively without interfering with wall fixing screws by approaching from a different spatial dimension.
Solution Approach 2:
The bead is pre-positioned on the hook and the side blocking elements are pre-configured on the support before the final assembly step. This preliminary arrangement ensures that when the shaped head screw is inserted, the anti-disengagement elements are already in their correct positions to engage the support without interference.
Data Source
AI summary
A hidden hanging bracket with an anti-disengagement system, for wall cupboards, wherein a cupboard is hooked to a support fixed to wall by way of a hook with a tooth of a hanging-bracket device, wherein a releasable reciprocal constraint system including a screw is provided between the hook and the support, the screw being screwed onto the hook and suitable for interfering with the support. According to the invention, the screw is screwed into a threaded seat positioned on a section forming part of, and incorporated in, the hook, the section being substantially opposed, but not completely offset, with respect to the tooth. The tip or end part of the screw is engaged with a horizontal flap at an edge of the support and folded directly from the support.