Vehicle Lid Device Emergency Operation Direction Conversion
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Solution Overview
Problem
The existing lid opening and closing device for vehicles faces difficulties in assembly due to the emergency operation member's cable extending orthogonal to the rod's movement direction, making it hard to insert the device into the vehicle body, which complicates assembly and compromises vehicle strength and water resistance.
Innovation Solution
Incorporating an operating force-acting direction conversion mechanism that converts the emergency operation member's force parallel to the rod's movement direction into a force orthogonal to it, allowing the restriction member to move from the restriction position to the release position, enhancing assembly ease without widening the insertion hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the emergency operation member's cable extends orthogonal to the rod's movement direction, then the device structure is simplified, but the assembly ease deteriorates and vehicle body strength is compromised
Solution Approach 1:
The patent introduces a direction conversion mechanism that transforms the cable's orthogonal movement (vertical dimension) into linear movement parallel to the rod's movement direction (horizontal dimension). This dimensional conversion allows the emergency operation member to be operated from the vehicle exterior while maintaining a compact insertion hole, thus resolving the contradiction between simplified device structure and assembly ease.
2Ease of operation
If the insertion hole area is increased to improve assembly ease, then the assembly process is simplified, but vehicle body strength and water resistance deteriorate
Solution Approach 1:
By converting the cable's orthogonal operation direction into parallel direction through the direction conversion mechanism, the patent enables the emergency operation member to be accessed from the vehicle exterior through a small insertion hole. This eliminates the need to enlarge the insertion hole, thereby maintaining vehicle body strength and water resistance while improving assembly ease.
3Ease of operation
If the emergency operation member is operated parallel to the rod's movement direction, then the assembly ease is improved, but an additional direction conversion mechanism is required
Solution Approach 1:
The direction conversion mechanism acts as an intermediary between the cable and the rod. It receives orthogonal movement from the cable and converts it into parallel movement that actuates the rod. This intermediary mechanism enables the emergency operation member to be operated from the vehicle exterior through a small insertion hole while maintaining structural integrity.
Solution Approach 2:
The direction conversion mechanism transforms the cable's orthogonal movement (vertical dimension) into linear movement parallel to the rod's movement direction (horizontal dimension). This dimensional conversion allows the emergency operation member to be operated from the vehicle exterior while maintaining a compact insertion hole, thus resolving the contradiction between simplified device structure and assembly ease.
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
This solution simplifies the assembly process by aligning the emergency operation member's direction with the rod's movement, improving assembly ease and maintaining vehicle integrity without enlarging the insertion hole, while maintaining a compact device structure.
Implementation Method 1
a cam part 85 that is formed on the emergency operation member 76 in an inclined manner so as to obliquely intersect a direction of operation of the restriction member 28 and that abuts against the projection 82
Data Source
AI summary
A lid opening and closing device for a vehicle includes a restriction member that is operable between a restriction position at which the restriction is applied and a restriction release position at which the restriction is released, an electric motor that drives the restriction member between the restriction position and the restriction release position in response to a door switching between a locked state and an unlocked state, a case that houses the restriction member and the electric motor, and an emergency operation member that can move the restriction member to the restriction release position when the electric motor malfunctions, wherein an operating force-acting direction conversion mechanism is provided between the emergency operation member and the restriction member, the operating force-acting direction conversion mechanism converting the operating force from the emergency operation member into a force that causes operation from the restriction position toward the restriction release position.