Vehicle Seat Adjustment Mechanism with Overlapping Electric Drives
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Solution Overview
Problem
Existing vehicle seats with longitudinal and rotational adjustment devices often require significant space and manual effort, making precise adjustments difficult and inefficient.
Innovation Solution
A vehicle seat design featuring electrically driven longitudinal and rotational adjustment devices that overlap in the height direction, reducing space requirements and allowing for precise, automated adjustments with minimal user effort, utilizing overlapping electric motors and innovative gear systems to facilitate independent and simultaneous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual locking devices are used for longitudinal and rotational adjustment, then the device complexity is reduced, but the ease of operation deteriorates due to high manual effort and difficult precise adjustment
Solution Approach 1:
The patent replaces manual mechanical locking devices with an electrically driven adjustment device. The electric drive mechanism automatically performs both longitudinal displacement and rotational adjustment of the upper seat part, eliminating the need for manual locking operations and reducing the physical effort required while maintaining precise adjustment capability.
Solution Approach 2:
The electrically driven adjustment device performs multiple functions: it provides both longitudinal adjustment (displacement in the longitudinal direction) and rotational adjustment (rotation about a vertical axis) through a single integrated mechanism. This multi-functionality eliminates the need for separate manual locking devices for each adjustment type, reducing overall device complexity while improving ease of operation.
2Volume of stationary object
If longitudinal and rotational adjustment devices are arranged one above the other, then the device complexity is reduced, but the volume of stationary object increases due to high space requirement in the height direction
Solution Approach 1:
The patent merges the longitudinal adjustment device and the rotational adjustment device into a single integrated electrically driven mechanism. Both adjustment functions are combined in one device that operates electrically, eliminating the need for separate mechanical locking devices arranged vertically. This merging significantly reduces the space requirement in the height direction while the electrical drive system manages the complexity of coordinating both adjustment movements.
3Ease of operation
If electric drives are used for longitudinal and rotational adjustment, then the ease of operation is improved, but the volume of stationary object increases due to large space requirement of the electric drives
Solution Approach 1:
The patent repositions the electric drive mechanism from a vertical arrangement (one above the other) to a horizontal arrangement (side by side). The longitudinal adjustment device and rotational adjustment device are positioned adjacent to each other in the horizontal plane, which redistributes the space requirement from the height direction to the lateral directions. This dimensional change allows electric drives to be used for improved ease of operation while managing the overall volume through spatial redistribution.
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 compact design and electric drive system enhance the accuracy and ease of seat adjustments, reducing the space needed for the adjustment devices and allowing for both manual and automatic operation, improving user convenience and precision.
Implementation Method 1
the longitudinal adjustment device and the rotational adjustment device are designed to be electrically driven
Implementation Method 2
the longitudinal adjustment device and the rotational adjustment device are designed to be electrically driven
Data Source
AI summary
The invention relates to a vehicle seat with a lower part for arrangement on a body part of a commercial vehicle and an upper part for storing a seat part, wherein the vehicle seat has a longitudinal adjustment device, by means of which the upper part is displaceable relative to the lower part in the longitudinal direction and/or width direction of the vehicle seat, and a rotational adjustment device working independently of the longitudinal adjustment device, by means of which rotational adjustment device at least parts of the upper part are rotatable relative to the lower part about an axis in the height direction of the vehicle seat, wherein a virtual plane is provided, which is arranged intersectingly parallel to a longitudinal direction and a width direction of the vehicle seat as well as the longitudinal adjustment device and the rotational adjustment device, wherein the longitudinal adjustment device and the rotational adjustment device are designed to be electrically driven.