Double-Walled Drawer Frame with Foam Spacer for Noise Prevention
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Solution Overview
Problem
Double-walled drawer frames experience noise generation due to play in mechanical holding devices, and existing connection techniques are not suitable for manual production without additional devices.
Innovation Solution
Incorporating a spacer part between the inner and outer walls, clamped between protrusions, which can be made of foam for noise reduction and is simple to produce, with protrusions integrated into the wall structure for connection and clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mechanical holding devices are used to connect the inner wall and outer wall, then manual production is enabled, but noise generation occurs due to play in the holding devices
Solution Approach 1:
A spacer part is introduced as an intermediary element between the inner wall and outer wall. This spacer part fills the gap and prevents direct contact that would cause rattling noises, while still allowing the mechanical holding devices to maintain the structural connection. The spacer acts as a mediator that eliminates the harmful noise generation without compromising the manual production capability.
2Strength
If additional connection devices are used to connect the walls, then connection strength is improved, but device complexity increases
Solution Approach 1:
The spacer part is integrated into the wall structure itself, with the inner wall and outer wall being formed as single-piece structures that include the spacer as an inherent component. This merging approach eliminates the need for separate connection devices while maintaining connection strength, as the walls are designed to interlock directly with the spacer already in place.
3Stability of the object's composition
If the spacer part is held by the inner wall and/or outer wall, then the spacer part is securely positioned, but the production process becomes more complex
Solution Approach 1:
The spacer part is designed to self-position and self-hold between the inner wall and outer wall through its geometric shape and the arrangement of protrusions. The spacer part inherently maintains its position without requiring additional holding mechanisms, as the structure itself provides the retention function. This self-service approach simplifies production while ensuring stable positioning.
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
Prevents noise generation during use while allowing for simple manual production of double-walled drawer frames without the need for additional connection devices, using foam spacers that can be easily adjusted for different sizes.
Implementation Method 1
the at least one spacer part is made at least partially, preferably entirely, out of a foam, in particular a polyethylene foam
Implementation Method 2
Because at least one spacer part is or can be arranged between the inner wall and the outer wall, a noise generation is prevented during the use of double-walled drawer frames
Data Source
AI summary
A double-walled drawer frame includes an inner wall and an outer wall. At least one spacer part is or can be arranged between the inner wall and the outer wall, and the at least one spacer part is shaped substantially plate-like and can be clamped between at least one first protrusion and at least one second protrusion.