Pivoting Vehicle Seat Mount for Tilting Vibration Compensation
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Solution Overview
Problem
Existing vehicle vibration devices are inadequate in compensating for tilting or pitching movements of a vehicle, as they are limited to specific degrees of freedom and cannot effectively absorb vibrations introduced during driving over uneven terrain, leading to reduced seating comfort.
Innovation Solution
A vehicle vibration device that allows the upper part of the vehicle seat to be pivotally mounted relative to the lower part around a real axis extending in the vehicle width direction, enabling resilient and damping compensation of tilting movements through a pivoting mechanism and additional horizontal vibration devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional vertical and horizontal vibration devices are used separately for each degree of freedom, then the structure is simple and easy to manufacture, but the device cannot compensate for tilting or pitching movements of the vehicle
Solution Approach 1:
The patent combines multiple vibration compensation functions (vertical, horizontal, and tilting/pitching) into a single integrated mounting structure. The upper part of the vehicle seat is mounted to the lower part such that a real axis extending in the vehicle width direction is pivotable, creating a unified structure that handles all three degrees of freedom simultaneously rather than using separate devices for each direction.
Solution Approach 2:
The patent introduces a rotational degree of freedom around a real axis extending in the vehicle width direction, adding a new dimensional aspect to the vibration compensation system. This pivoting mechanism enables the seat to counterbalance tilting or pitching movements by rotating around this axis, thereby compensating for vehicle body rotations that traditional linear spring arrangements cannot address.
2Adaptability or versatility
If spring deflections are limited to approximately 100 mm in vertical direction and +/- 25 mm in horizontal direction, then the device is compact and safe, but it cannot sufficiently compensate for tilting movements
Solution Approach 1:
The patent transforms the static spring deflection limitation into a dynamic solution by introducing a pivoting mechanism. Instead of relying solely on linear spring compression within fixed limits, the system uses rotational movement around a real axis to compensate for tilting movements. This dynamic pivoting action allows the seat to adapt to vehicle body rotations without being constrained by fixed spring travel distances.
Solution Approach 2:
The patent addresses the spring travel limitation by moving from linear displacement to rotational displacement. The pivoting mechanism around the real axis extending in the vehicle width direction converts limited linear spring deflection into effective tilting compensation through angular movement, thereby achieving greater functional range without increasing physical dimensions.
3Adaptability or versatility
If separate vibration devices are used for vertical, horizontal, and lateral directions, then each device can be optimized for its specific function, but the overall system cannot effectively handle coupled tilting movements
Solution Approach 1:
The patent merges the functions of separate vertical, horizontal, and lateral vibration devices into a single integrated mounting structure with pivoting capability. This unified structure simultaneously handles all three degrees of freedom and their coupled effects, eliminating the need for multiple independent devices while maintaining comprehensive vibration compensation functionality.
Solution Approach 2:
The patent creates a universal mounting structure that performs multiple vibration compensation functions simultaneously. The single integrated device with pivoting around the real axis can compensate for vertical vibrations, horizontal vibrations, and tilting/pitching movements, making it a multi-functional solution that replaces what would traditionally require three separate specialized devices.
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 solution effectively reduces and dampens vibrations caused by tilting or pitching movements, enhancing seating comfort by allowing the vehicle seat to counterbalance and absorb rotational movements, thereby improving vibration absorption beyond traditional vertical and horizontal limitations.
Implementation Method 1
an upper part of a vehicle seat and a lower part of a vehicle seat which is resiliently mounted relative to the lower part of the vehicle seat by means of at least one spring device
Implementation Method 2
when vibrations occur between the vehicle seat upper part and the vehicle seat lower part a real axis extending in the vehicle width direction is pivotable
Data Source
Figure 1
AI summary
The invention relates to a vehicle vibration device for a vehicle seat (4, 4a, 4b) or a vehicle cabin (3) with a lower part (20) and an upper part (4a, 4b) which is resiliently mounted relative to the lower part (20) by means of at least one suspension device, wherein the upper part (4a, 4b) is mounted relative to the lower part (20) in such a way that, when vibrations occur between the upper part (4a, 4b) and the lower part (20), it is pivotable (17) about a fictitious or real axis (15) extending in the vehicle width direction or vehicle length direction (8).