Spring-Loaded Belt Holder for Secure Profile Rail Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shelving systems for transport vehicles lack a secure and simple method for attaching straps, as known hook-shaped belt holders are not secured without tension and can easily fall out when unloaded.
Innovation Solution
A shelving system with a profile rail featuring a cavity and slots separated by webs, and a device with a base body having a hook-shaped front part and a transverse slot, secured by a pressure piece acted upon by a compression spring, which holds the hook-shaped front part behind the separating web, preventing it from falling out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple hook-shaped belt holder is used, then the device complexity is reduced, but the reliability of attachment is worsened because the holder is not secured without tensile load and can easily fall out
Solution Approach 1:
The pressure piece is designed to move dynamically between a retracted position (during insertion) and a pressed position (during locking). The compression spring enables the pressure piece to automatically adjust its position based on the presence or absence of tensile load, providing both ease of assembly and secure locking without complex mechanisms
Solution Approach 2:
The pressure piece acts as an intermediary element between the hook-shaped front part and the profile rail. It transfers the locking force from the compression spring to the hook-shaped front part, enabling reliable attachment while keeping the overall structure simple. The pressure piece mediates the interaction between the simple hook design and the security requirement
2Reliability
If a pressure piece with compression spring is added to secure the hook-shaped front part, then the attachment security is improved, but the device complexity increases
Solution Approach 1:
The compression spring automatically provides the necessary locking force without requiring external actuation or complex control mechanisms. The pressure piece self-adjusts its position based on the spring force, and the entire locking mechanism activates passively when the device is assembled, reducing overall system complexity while maintaining high reliability
Solution Approach 2:
The device is segmented into distinct functional components: the base body for structural support, the hook-shaped front part for engagement, the pressure piece for applying force, and the compression spring for providing continuous pressure. This segmentation allows each component to be simple in design while collectively achieving secure attachment
3Reliability
If the hook-shaped front part is designed to engage behind the separating web, then the attachment security is improved, but the ease of operation is worsened due to the additional locking mechanism required
Solution Approach 1:
The pressure piece's dynamic movement allows the hook-shaped front part to be easily inserted when the pressure piece is retracted, and then automatically locked when the pressure piece is pressed forward. This dynamic behavior eliminates the need for complex manual locking operations while maintaining secure attachment
Solution Approach 2:
The compression spring is pre-loaded to automatically push the pressure piece into the locking position once the hook-shaped front part is inserted. This preliminary action of the spring eliminates the need for additional manual steps to secure the attachment, maintaining ease of operation while ensuring reliability
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
The solution provides a secure and easy-to-assemble system for attaching straps, ensuring they remain attached even when the vehicle is unloaded, with the pressure piece's spring mechanism maintaining the hook-shaped front part in a locked position, allowing for secure attachment and reduced wear during handling.
Implementation Method 1
A pressure piece, which is acted upon by a compression spring in the direction of the hook-shaped front part, is arranged on the rear part of the base body
Data Source
Figure 1~3
Figure 4~7
AI summary
The invention relates to a device (3) for the detachable fastening of a retaining strap (4) to a profile rail (1; 2; 31), in particular of a racking system, in a transport vehicle, comprising a base body (35) which includes a hook-shaped front part (36) for engaging behind a divider (13; 28) on the profile rail (1; 2; 29) and a rear part (38) for receiving the retaining strap (4). A pressure piece (40) is arranged on the rear part (38) of the base body (35) and is acted upon by a compression spring (42) in the direction of the hook-shaped front part (36) for the secure retention of the base body (35) on the profile rail (1, 2; 31).