RV Entry Door Assembly With Pivot-Slide Access Assistance
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Solution Overview
Problem
Conventional door designs for recreational vehicles lack functionality and user convenience, particularly in terms of ease of operation and adaptability to different vehicle types, as they often require significant modifications or do not utilize existing factory structures effectively.
Innovation Solution
The proposed solution involves retrofitting or manufacturing recreational vehicles with modified door designs that incorporate existing factory structures, such as door tracks, and utilize customized structures to create versatile door systems, including combinations of pivoting, sliding, and rotating doors, which can be easily assembled during original manufacture or retrofitted onto factory chassis, featuring assist devices like motors and gas struts for reduced user effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional door designs are used for recreational vehicles, then the vehicle structure remains simple, but user convenience and operational ease deteriorate due to high force requirements and lack of adaptability
Solution Approach 1:
The door system incorporates multiple movable configurations including pivoting doors that rotate on vertical axes, sliding doors that move horizontally along tracks, and folding doors that articulate through multiple joints. These dynamic mechanisms allow the door to adapt its movement pattern and force requirements based on operational needs, directly improving ease of operation while managing complexity through modular design
Solution Approach 2:
Assist devices such as motors, gas struts, and spring mechanisms are introduced as intermediary elements between the user and the door system. These intermediaries provide mechanical advantage and force multiplication, reducing the direct operational force required from the user while maintaining controlled door movement, thus improving ease of operation without proportionally increasing complexity
2Adaptability or versatility
If customized door structures are installed during original manufacture, then door functionality and user convenience improve, but manufacturing complexity and time increase
Solution Approach 1:
The door system is divided into modular components including separate door panels, hinge assemblies, sliding mechanisms, and assist devices. This segmentation allows each component to be manufactured independently using standardized processes, then assembled into customized configurations for different recreational vehicle types, thereby improving adaptability while managing manufacturing complexity through modularity
Solution Approach 2:
The door system employs universal mounting interfaces and standardized components that can be adapted to various recreational vehicle chassis and body styles. The same basic door assembly can be configured to provide pivoting, sliding, or folding functionality across different vehicle types, enhancing adaptability while reducing the need for completely custom manufacturing for each application
3Ease of manufacture
If factory door tracks are utilized in modified door designs, then ease of retrofitting improves, but structural integrity may worsen if existing structures cannot support modified door weights and forces
Solution Approach 1:
During the original vehicle manufacturing process, reinforcement structures are pre-installed at critical mounting locations before the door system is assembled. This preliminary strengthening of door tracks, pillars, and mounting points ensures that the existing factory structures can support the modified door designs and their operational forces, maintaining structural integrity while enabling easy retrofitting of the door system
Solution Approach 2:
The door system incorporates composite construction combining lightweight door panels with integrated reinforcement elements. The door assembly uses composite structures that distribute operational forces across multiple attachment points, reducing stress on individual factory structures while maintaining overall structural integrity during retrofitted installation
4Ease of operation
If assist devices like motors and gas struts are incorporated, then operational force requirements reduce, but device complexity and manufacturing cost increase
Solution Approach 1:
Assist devices are selectively applied only at specific locations within the door system where force multiplication is most beneficial, such as at hinge points for pivoting doors or at sliding interfaces for horizontal movement. This localized application of mechanical assistance reduces operational force requirements at critical points while avoiding unnecessary complexity in areas where simple manual operation suffices, balancing ease of operation with manageable device complexity
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 new door designs enhance user convenience by reducing operational force requirements and providing adaptable solutions for various recreational vehicle types, while maintaining structural integrity and aesthetic appeal, allowing for easier entry and exit, and offering additional features like shelter and shade.
Implementation Method 1
featuring assist devices like motors and gas struts for reduced user effort
Implementation Method 2
featuring assist devices like motors and gas struts for reduced user effort
Data Source
AI summary
A recreational vehicle includes a body with an entryway to an interior of the recreational vehicle. A first door is coupled to the body via a first hinge and rotatable around a horizontal axis. A second door is coupled to the body via a second hinge and rotatable around a vertical axis.