Container Wall Fastener With Internal Expansion Locking
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Solution Overview
Problem
Existing fastening devices for attaching holding elements to containers are complex, costly, and require multiple components, making them difficult to assemble and attach to plate-shaped elements like walls, especially for rotational connection.
Innovation Solution
A fastening device with an expansion element that can be guided through a through opening and secured relative to the plate-shaped element, featuring an actuating element that moves within the fastening element to lock the expansion element in place, eliminating the need for separate securing elements and reducing the number of components required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional fastening device with separate securing elements is used, then reliable fixation is achieved, but device complexity and component count increase
Solution Approach 1:
The patent combines the fastening element and securing element into a single integrated fastening device. The fastening element includes both the anchoring portion that engages with the plate-shaped element and the securing portion that locks the actuating element, eliminating the need for separate securing components and reducing overall device complexity while maintaining reliable fixation.
Solution Approach 2:
The fastening element serves multiple functions: it anchors the actuating element to the plate-shaped element, provides a locking mechanism through the actuating element's movement, and secures the connection without requiring additional securing elements. This multi-functional design reduces component count while ensuring reliable fixation.
2Reliability
If multiple separate components are used for fastening, then secure attachment is achieved, but ease of manufacture decreases
Solution Approach 1:
The fastening element is designed as an integrated component that combines anchoring, actuating, and securing functions. This single-component design simplifies manufacturing processes and assembly operations compared to traditional multi-component fastening systems, while maintaining secure attachment through the internal locking mechanism.
Solution Approach 2:
The fastening element is pre-configured with the actuating element and securing mechanism integrated during manufacturing. This preliminary integration eliminates the need for complex assembly operations at the installation stage, as the fastening device is ready for immediate use with all securing functions built-in.
3Ease of manufacture
If a simple fastening element is used, then ease of manufacture is improved, but reliability of fixation deteriorates
Solution Approach 1:
The fastening element integrates multiple functions including anchoring, actuating, and securing mechanisms into a single component. This integration maintains manufacturing simplicity by using a unified structure rather than multiple separate parts, while simultaneously ensuring reliable fixation through the built-in locking mechanism that prevents disengagement.
Solution Approach 2:
The actuating element is designed to move between different positions (first position for insertion, second position for locking) within the fastening element. This dynamic mechanism allows the simple fastening element to provide reliable fixation by transitioning from an open state during installation to a locked state during use, ensuring secure attachment without complex external securing components.
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
Enables simple, cost-effective attachment and rotation of holding elements to containers, reducing assembly complexity and component count, while ensuring secure fixation without additional securing elements.
Implementation Method 1
a spreading element (36) which, in a first state, can be guided through the through-opening (30) in a first axial direction (34) and, in a second state, is fixed relative to the plate-shaped element (14) in at least one axial direction (38) opposite to the first axial direction (34)
Implementation Method 2
an actuating element (40), movable within and relative to the fastening element for switching from the first to the second state and securing the second state
Data Source
Figure 1
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AI summary
The invention relates to a fastening device (24) for attaching a retaining element (20) or object to a plate-shaped element with a through-opening (30), in particular to a wall (14) of a container. The fastening device (24) is designed to secure, in particular rotatably secure, the retaining element (20) or object to the plate-shaped element, in particular the wall (14), and comprises at least one fastening element (32) engaging in a through-opening (30) in the plate-shaped element.The fastening element (32) comprises a spreading element (36) which, in a first state, can be guided through the through-opening (30) in a first axial direction (34) and, in a second state, is fixed relative to the plate-shaped element in at least one axial direction (38) opposite the first axial direction (34), wherein an actuating element (40) is arranged within the fastening element (32) and movable relative to it for switching from the first to the second state and securing the second state. The invention further relates to a container (10) with such a fastening device and to a method for manufacturing a container (10).