Wire-Formed Roller Brake Assembly for Low-Complexity Container Locking
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Solution Overview
Problem
Existing rolling brake devices for sales and transport containers are complex and costly to manufacture due to the use of multiple parts and three-dimensional bending machines.
Innovation Solution
The use of a bent wire section forming the control cam, which is offset from the pivot axis, allows for a simpler and more cost-effective manufacturing process by using a single piece foot-operated lever that can be assembled with fewer parts and using a 2D bending machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional control cams mounted on torsion bars are used, then the brake device functions reliably, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent combines multiple separate components (control cams and torsion bars) into a single integrated wire element. The wire is bent to form both the control cam profiles and the torsion bar function in one continuous piece, eliminating the need for separate mounting operations and reducing part count while maintaining the braking function.
Solution Approach 2:
The wire element serves multiple functions simultaneously: it acts as the control cam for actuating the brake, provides torsional flexibility through its bent sections, and serves as the structural connection between the actuating lever and the support rollers. This multi-functionality reduces the overall device complexity.
2Ease of manufacture
If multiple separate parts are used for the actuating arrangement, then the brake device is functional, but assembly becomes time-consuming and costly
Solution Approach 1:
The actuating arrangement is merged into a single wire element that can be manufactured as one piece and installed in one operation. This eliminates the need to assemble multiple separate parts (control cams, torsion bars, mounting brackets) and significantly reduces assembly time.
Solution Approach 2:
The wire is pre-bent into the required configuration with control cam profiles and torsion sections during manufacturing. This preliminary shaping allows the component to be installed in its final configuration without requiring complex assembly operations or specialized equipment at the installation site.
3Shape
If three-dimensional bending machines are used for manufacturing, then complex shapes can be achieved, but manufacturing costs increase
Solution Approach 1:
The patent transitions from requiring three-dimensional bending to achieving the required shape through two-dimensional bending. The wire is bent in a single plane to create the control cam profiles and torsion sections, which can be accomplished with simpler, more cost-effective 2D bending equipment while still achieving the necessary functional geometry.
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
This approach simplifies the assembly and reduces manufacturing costs while ensuring reliable operation, making the rolling brake device easier to install and maintain.
Implementation Method 1
Each clamping element is associated with a clamping spring (14) that exerts a force on the clamping element, moving it into the release position
Implementation Method 2
an actuating arrangement (16) that extends between the support rollers and is pivotable about a pivot axis
Implementation Method 3
forming the respective control cams of the actuating arrangement with a correspondingly bent wire section
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a rolling brake device (2) for a sales and transport container for displaying goods, comprising two support rollers (10), each support roller being assigned a clamping part (12) which can be moved between a locking position locking the respective support roller and a release position, the clamping part being assigned a clamping spring (14) via which the clamping part is subjected to a force which moves the clamping part into the release position, and an actuating arrangement (16) extending between the support rollers (10), which can be pivoted about a pivot axis (S) and each has a control cam (20) for moving the clamping parts from the release position into the locking position, the respective control cams (20) being formed by a correspondingly bent wire section (18) of the actuating arrangement (16).