Convertible Vehicle Seat Pivot Arms for Space-Saving Configurations
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Solution Overview
Problem
Vehicles such as boats require seating configurations that can adapt to various activities without consuming excessive deck space, necessitating a seat that can be arranged in multiple positions.
Innovation Solution
A seat design featuring a guide track, base bracket, and pivot arms that allow for adjustable configurations, including forward-facing, rear-facing, and flat positions, utilizing a cushion release assembly and toggle assembly for secure positioning, allowing passengers to switch between configurations efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a seat is designed to be convertible into multiple positions, then adaptability is improved, but device complexity increases
Solution Approach 1:
The seat is divided into multiple independent pivot arms (first pivot arm, second pivot arm) that can be adjusted separately to different positions. Each pivot arm can be independently positioned using the guide track and notch mechanism, allowing flexible configuration without requiring complex interdependent mechanisms.
Solution Approach 2:
The seat employs a dynamic adjustment mechanism where pivot arms can be rotated between upright and forward positions, and the guide pin can slide along the guide track to different notches. This dynamic capability allows the seat to adapt to various configurations (forward-facing, rear-facing, flat) while using relatively simple mechanical components.
2Adaptability or versatility
If a seat provides multiple seating configurations, then versatility is improved, but ease of operation deteriorates
Solution Approach 1:
The guide pin automatically engages with notches in the guide track when the pivot arm is rotated to different positions, providing self-locking functionality. The toggle assembly and cushion release assembly automatically secure the seat in desired positions, reducing the need for manual intervention to maintain configurations.
Solution Approach 2:
The guide track acts as an intermediary mechanism that guides the guide pin to specific notches corresponding to different seating positions. This intermediary structure simplifies the adjustment process by providing predetermined, easily accessible positions without requiring complex control mechanisms.
3Adaptability or versatility
If a seat structure includes multiple pivot arms and guide tracks, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The design allows for parameter adjustments in the guide track and notch positions to accommodate different seating configurations. The notches are positioned at specific intervals along the guide track to provide standard seating positions, and the dimensions of pivot arms and guide pins can be adjusted to match different vehicle and seat requirements.
Data Source
AI summary
Various implementations include a seat having a guide track, a base bracket, a first pivot arm, and a second pivot arm. The guide track includes an elongated track having a longitudinal centerline and one or more notches. The base bracket includes at least one laterally extending guide pin slidingly engaging the elongated track and disposable within the one or more notches. The first pivot arm is configured to support a forward cushion. The first pivot arm is rotatably coupled to the base bracket and movable between an upright position and a forward position. The second pivot arm is configured to support a rearward cushion. The second pivot arm is rotatably coupled to the base bracket and movable between an upright position and a rearward position.