Seat Belt Tensioner Cable Guide for Flexible Mounting Layouts
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Solution Overview
Problem
Existing tensioning devices for seat belt components are limited in flexibility and orientation, as they are typically mounted laterally next to a vehicle seat with a piston movement direction parallel to the vehicle's longitudinal axis.
Innovation Solution
A tensioning device with a guide block that forms a linear guide, allowing the tension cable to be led out in parallel alignment with or offset parallel to the piston movement direction, enabling the device to be mounted in various orientations and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guide block forms a cable deflection to direct the seat belt component from the pressure chamber, then the device can be mounted laterally next to a vehicle seat, but the mounting flexibility and orientation options are limited
Solution Approach 1:
The guide block is designed with a linear guide that allows the tension cable to be led out in parallel alignment with the piston movement direction, enabling the device to adapt to different mounting orientations. This dynamic configuration capability allows the same guide block design to accommodate various installation positions without requiring complex custom configurations for each orientation.
2Ease of operation
If the tension cable is deflected by the guide block transversely to the piston movement direction, then the device can be mounted laterally, but unintentional movement of the tension cable and piston may occur
Solution Approach 1:
A resistance element is arranged in the linear guide of the guide block to counteract any unintentional movement of the tension cable. This resistance element provides preliminary opposition to unwanted cable displacement, preventing the piston from assuming undesired positions before the device is properly installed or after installation in the motor vehicle.
Solution Approach 2:
The resistance element acts as an intermediary component between the tension cable and the guide block structure. It mediates the interaction by providing controlled resistance that prevents unwanted cable movement while allowing the cable to be properly guided and positioned during normal operation.
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 design allows for greater flexibility in the placement and configuration of the tensioning device within a motor vehicle, enhancing its adaptability and functionality.
Implementation Method 1
a gas generator for generating a compressed gas
Implementation Method 2
a piston that can be driven by the compressed gas
Implementation Method 3
the at least one resistance element formed by the component is reduced at the beginning of a tensioning process due to the friction between the tension cable and the at least one resistance element
Data Source
AI summary
A seat belt tensioning device with a gas generator for generating a compressed gas, a piston driven by the compressed gas, a tension cable which is connected to the piston and is connectable to a seat belt component to be set into a tensioning movement, a tensioner tube for receiving and guiding the piston, and a guide block that forms a cable guide and in which a receptacle receiving the gas generator and a pressure chamber connected in terms of flow to the receptacle are formed, wherein the guide block is connected to the tensioner tube, and the tension cable runs rectilinearly in a piston movement direction from the tensioner tube through the pressure chamber, wherein the guide block forms a linear guide adjoining the pressure chamber such that the tension cable can be led out of the guide block on the side opposite the tensioner tube.