Motor Vehicle Hood Hinge Assembly for Precise Edge Adjustment
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Solution Overview
Problem
Existing hood assembly adjustments for motor vehicles are difficult near lateral ends due to reduced accessibility, compromising precision and simplicity of hinge positioning.
Innovation Solution
A hood assembly with a sleeve and threaded locking nuts allows precise adjustment and secure fastening of hinges near lateral ends by using a sleeve inserted in a hole on the vehicle structure, enabling adjustment along multiple axes with infinite precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hole for fastening the hinge is positioned near the lateral ends of the motor vehicle to reserve intermediate zones for other devices, then the adaptability and space utilization are improved, but the accessibility for adjusting the hinge position deteriorates
Solution Approach 1:
The adjustment mechanism is segmented into multiple independent components: a pin with radial clearance for horizontal adjustment, spacers for vertical adjustment, and a locking mechanism. This segmentation allows each component to be adjusted independently, enabling precise positioning even in hard-to-reach areas where the hole is located near lateral ends.
Solution Approach 2:
The pin acts as an intermediary element between the hinge and the hole. By allowing radial clearance and movement within the hole, the pin mediates the connection, enabling adjustment of the hinge position both horizontally and vertically without requiring direct access to the hole for repositioning.
2Manufacturing precision
If the hinge position is adjusted with high precision to minimize visible empty spaces, then the manufacturing precision and aesthetics are improved, but the ease of operation deteriorates due to reduced accessibility
Solution Approach 1:
The adjustment mechanism transforms a static connection into a dynamic one. The pin can move radially within the hole, and spacers can be added or removed, allowing the hinge position to be dynamically adjusted to achieve precise alignment. This dynamic adjustment capability enables high manufacturing precision even when the hole is in a hard-to-reach location.
Solution Approach 2:
The adjustment components (pin with clearance, spacers) are pre-configured to enable precise positioning. The pin is designed with radial clearance from the start, and spacers are prepared in advance, allowing the operator to make precise adjustments without requiring complex tools or extensive access to the adjustment location.
3Ease of operation
If the pin is allowed to move radially inside the hole for horizontal adjustment, then the ease of operation is improved, but the stability of the hinge position deteriorates
Solution Approach 1:
The locking mechanism is pre-configured to secure the pin in the desired position after adjustment. Once the hinge is positioned correctly through radial movement of the pin, the locking mechanism engages to prevent any further movement, ensuring the stability of the adjusted position while maintaining ease of adjustment.
Data Source
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AI summary
A hood assembly for a motor vehicle (1) includes a hood (8), a hinge (11) with a first arm (12), and a pin (15) fixed to the first arm (12) in a projecting manner along a mounting axis (X) and a second arm (13) of the hood (8) hinged to the first arm (12) around a hinge axis (H), a structural member (10) fixed to the pin (15) and provided with a hole (16) axially receiving the pin (15) along the mounting axis (X), wherein the hinge axis (H) and the mounting axis (X) lie respectively on a first plane and on a second plane parallel to one another, and wherein a projection of the hinge axis (H) onto the second plane is orthogonal to the mounting axis (X) .