Tailgate Inner Handle Assembly with Movable Grip Member
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Solution Overview
Problem
Short users find it difficult to easily grab the inner handle assembly of a tailgate due to its high positioning when the tailgate is open, making it hard for them to close it.
Innovation Solution
A tailgate inner handle assembly with a grip member that automatically moves to a lower position when the tailgate is opened, utilizing an actuator and driving wires to reposition the grip member, allowing easy access for short users to close the tailgate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the inner handle assembly is positioned at a high location on the tailgate, then it prevents contact with other components when closed, but short users cannot easily grab it when the tailgate is open
Solution Approach 1:
The grip member is designed to be movable rather than fixed, allowing it to change position between a first position (lower) when the tailgate is open and a second position (higher) when the tailgate is closed. This dynamic adjustment resolves the contradiction by adapting the handle position to different operational states, making it easily accessible for short users when open while preventing contact with components when closed.
Solution Approach 2:
The grip member is automatically moved to the appropriate position in advance of user interaction. When the tailgate opens, the grip member preliminarily moves to the lower first position before the user needs to grab it, ensuring ease of access for short users without requiring manual adjustment during the closing operation.
2Ease of manufacture
If a mechanical structure without electric components is used, then manufacturing costs are reduced, but the complexity of achieving automatic grip member movement increases
Solution Approach 1:
The mechanical structure is designed to automatically move the grip member between positions using the tailgate's own opening and closing motion as the driving force. The connection between the tailgate and grip member creates a self-service system where the tailgate's movement directly actuates the grip member, eliminating the need for external electric actuators or complex control systems while achieving automatic positioning.
Solution Approach 2:
The mechanical connection structure serves multiple functions: it connects the tailgate to the inner handle assembly, transmits the tailgate's opening/closing motion to move the grip member, and provides structural support. This multi-functionality reduces the need for separate components, simplifying the overall structure while achieving automatic grip member movement without electric components.
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
Enhances user convenience by allowing short users to easily grasp the grip member when the tailgate is open and prevents contact with other components or items when closed, reducing manufacturing costs by using a mechanical structure without electric components.
Implementation Method 1
a pulley rotating in a first direction when the driving wire is wound, and rotating in a second direction when the driving wire is unwound
Implementation Method 2
A first elastic member applying elastic force to the piston may be installed within the cylinder. The first elastic member may apply elastic force in a direction in which the moving member moves away from the bracket.
Implementation Method 3
the pulley may be configured to receive elastic force to rotate in the winding direction by a second elastic member
Data Source
AI summary
A tailgate inner handle assembly may include a grip member being movable in a lower end of a tailgate, an actuator moving the grip member to a first position when the tailgate is opened and moving the grip member to a second position the tailgate is closed, and at least one driving wires driving the actuator when opening and closing the tailgate.