Manual Belt Presenter With Rotatable Arm And Locking Mechanism
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Solution Overview
Problem
Existing belt presenters for seat belt systems are complex, expensive due to the need for dedicated motors and power supplies, and lack flexibility in adjusting the belt strap position for different vehicle configurations and user preferences.
Innovation Solution
A manually movable belt presenter with a rotatable arm and locking mechanism that can be adjusted to multiple positions without a motor drive, allowing for convenient belt strap positioning and secure locking using spring-biased blocking structures, enabling fine adjustment and easy reconfiguration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor-driven belt presenter is used, then the belt strap can be automatically positioned, but the device becomes complex and expensive
Solution Approach 1:
The patent removes the motor and power supply components from the belt presenter, extracting the automatic positioning function while retaining the essential belt positioning capability. This simplifies the device structure and reduces cost while maintaining the core functionality of belt strap positioning.
Solution Approach 2:
The belt presenter is designed to be manually operated by the vehicle occupant, who directly positions the belt strap without requiring automated motor-driven assistance. This self-service approach eliminates complex mechanical components while achieving the positioning goal through user action.
2Adaptability or versatility
If a fixed belt presenter position is used, then the structure is simple, but it cannot adapt to different vehicle configurations or user preferences
Solution Approach 1:
The belt presenter transitions from a fixed position to a dynamically adjustable position, allowing the belt strap guide to be moved to different locations along the vehicle lining. This dynamic capability enables adaptation to various vehicle configurations and user preferences without requiring complex automated adjustment mechanisms.
Solution Approach 2:
The belt presenter is designed as a segmented system where the belt strap guide can be independently positioned at multiple discrete locations along the vehicle lining. This segmentation allows flexible positioning while maintaining structural simplicity, as each position is a distinct, pre-determined location rather than a continuous adjustment range.
3Device complexity
If the arm is made manually movable, then the device becomes simpler and cheaper, but it may not remain stable in the desired position
Solution Approach 1:
The belt presenter incorporates a spring mechanism that provides pre-positioning force to maintain the arm in its desired position. This beforehand cushioning ensures that once the user positions the belt strap guide, it remains stable and does not drift, compensating for the lack of motor-driven positioning while maintaining reliability.
Solution Approach 2:
A spring-loaded latching mechanism acts as an intermediary between the user's manual positioning action and the final stable position. The spring provides the necessary force to hold the arm in place, while the latching mechanism ensures precise positioning at predetermined locations along the vehicle lining.
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 simple, cost-effective, and flexible belt presenter that can be adjusted to optimize belt strap accessibility for frequent users, while avoiding interference in various vehicle configurations, ensuring the arm remains in the desired position without external force, even during vehicle motion.
Implementation Method 1
two interacting blocking structures biased against each other, wherein biasing is especially performed by means of a spring
Implementation Method 2
one or both of the blocking structures and/or the components supporting the blocking structures to be elastically deformable
Implementation Method 3
one or both of the blocking structures and/or the components supporting the blocking structures to be elastically deformable. It is also possible to generally use high-friction surfaces that are pressed against each other as blocking structures
Data Source
AI summary
A belt presenter for a seat belt system comprising a belt strap and deflection fittings (16) includes an arm (102) having a belt strap guide (104) and a mounting portion (106) by which the arm (102) is adapted to be mounted to a vehicle lining (10). The arm (102) is manually movable about an axis of rotation (108) into a plurality of locking positions. The axis of rotation (109) about which the arm (102) can be rotated is arranged, in the vehicle-mounted state, to be offset from a mounting point (18) of deflection fittings (16) of the seat belt system.