Car Seat Angular Adjustment Mechanism with Stepped Gear Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing seat adjusting mechanisms in vehicles lack a gradual and comfortable angular adjustment method, often causing users to feel sudden movements and lack of feedback during positioning, which affects ride comfort and ergonomic alignment.
Innovation Solution
A position adjusting mechanism featuring a step gear with a grooved structure that engages with a gear, allowing users to feel geometrical stepping during angular movement, ensuring balanced and comfortable adjustment without system elimination during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a triggering mechanism is used to adjust the seating part angle, then the adjustment can be performed manually, but the driver or passenger feels sudden movements and cannot sense the steps during adjustment
Solution Approach 1:
The gear structure is divided into multiple discrete steps, where each step represents a distinct angular position. The gear has teeth that engage with the pinion gear in discrete increments, creating perceptible steps during rotation. This segmentation allows users to feel and sense each adjustment step rather than experiencing continuous smooth movement.
Solution Approach 2:
The mechanism provides tactile feedback through the stepped gear structure. As the pinion gear rotates and engages with the gear teeth, users can physically feel each step through the triggering mechanism. This feedback loop allows users to sense the adjustment process and know when each angular position is reached, improving awareness during manual adjustment.
2Ease of operation
If a continuous adjustment mechanism is used, then smooth movement is achieved, but the user cannot feel the steps and loses positional awareness
Solution Approach 1:
The gear is designed with discrete teeth that create angular segments. Each tooth engagement represents a specific angular position, dividing the continuous rotation into meaningful discrete steps. This allows the mechanism to maintain smooth rotational movement while providing periodic positional feedback through the stepped engagement points.
Solution Approach 2:
The stepped gear structure provides periodic tactile feedback during rotation. Users can feel each tooth engagement as a distinct sensation, maintaining awareness of the current angular position and the steps taken to reach it. This feedback prevents loss of positional information while allowing continuous adjustment capability.
3Difficulty of detecting and measuring
If a complex mechanism with multiple components is used to achieve gradual adjustment, then step perception is improved, but the device complexity increases
Solution Approach 1:
The gear and pinion gear are integrated into a single compact assembly where the pinion gear rotates within the gear structure. The triggering mechanism is combined with the gear engagement system, eliminating the need for separate step detection devices. This merging provides step perception functionality while maintaining a relatively simple overall structure.
Solution Approach 2:
The gear structure serves multiple functions: it provides the angular adjustment mechanism, creates the stepped sensation for user feedback, and enables the triggering mechanism to engage and disengage smoothly. The same structural elements that enable rotation also provide the step perception, eliminating the need for additional dedicated components for each function.
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
Enables efficient and ergonomic adjustment of car seat inclination, providing a comfortable and balanced mechanism that allows users to feel the stepping process, ensuring the seating part is adjusted smoothly and securely.
Implementation Method 1
a spring (320) connected to said actuating mechanism (330) and said outer frame (200), said spring (320) being in a compressed state when said actuating mechanism (330) is in the locked position
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a position adjusting mechanism (1) which adjusts the inclination of a seating part of the car seats and comprises: an outer frame (200); an inner frame (100) meshing with said outer frame; an inner plate (331); a casing plate (332), wherein the inner plate and the casing plate are located at the outer frame in an opposite direction and in a mirrored way; a gear (335) located between said inner plate and the casing plate by pins and washers; a main arm (337); two actuating mechanisms (330) which have a sandwich type structure and consist of a step lock (336); a connecting shaft interconnecting said actuating mechanisms; a triggering arm (333) providing detachment of said step lock from the gear; an inclination mechanism (300) comprising two springs (320); a locking arm (338) which opens and closes said step lock; a step gear (110) engaged to the gear by means of a grooved structure thereof; and a connecting member moving in a connecting channel of said step gear.