Elevation Adjustment Device with Indexed Pin
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Solution Overview
Problem
Existing devices for adjusting the elevation of vehicle parts, such as stops for motor vehicle openings, are either difficult to adjust once locked or fragile due to the use of flexible elements that can break and require significant space for deformation.
Innovation Solution
A device comprising a body with an internal thread and a pin with external threads, where the pin can rotate to adjust elevation, and flexible legs with slots that bend to index the position, ensuring secure locking without the need for fragile elements or excessive space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible elements are used to index the elevation position, then the adjustment mechanism can deform to accommodate positioning, but the flexible elements may break and require significant space for deformation
Solution Approach 1:
The patent extracts the flexible indexing elements from the adjusting element and relocates them to the body. The slots are now formed in the body instead of in the adjusting element, allowing the indexing features to remain stationary while the adjusting element rotates. This eliminates the fragility of flexible elements in the adjusting element while preserving the indexing function.
Solution Approach 2:
The patent inverts the traditional arrangement by placing the slots in the stationary body rather than in the moving adjusting element. The indexing holes are now fixed features in the body that receive corresponding pins on the rotating adjusting element. This reversal allows indexing without requiring flexible deformation of elements in the adjusting element.
2Stability of the object's composition
If retaining lugs and locking grooves are used to lock the adjusting element, then the elevation position can be fixed securely, but the adjustment becomes difficult to modify after locking
Solution Approach 1:
The patent transitions from a static locking mechanism to a dynamic one. The adjusting element features a threaded portion that engages with threads in the body, allowing it to be rotated freely during adjustment. After positioning, the adjusting element can be secured by friction or a simple cap, rather than requiring complex retaining lugs and grooves. This dynamic approach enables easy re-adjustment while maintaining stability when locked.
3Measurement precision
If multiple flexible elements are arranged on the sleeve to indent into grooves, then the stop can be positioned at determined heights, but the device requires sufficient space for the flexible elements to deform
Solution Approach 1:
The patent extracts the flexible indexing elements from the adjusting element and relocates them to the body. The slots are now formed in the body instead of in the adjusting element, allowing the indexing features to remain stationary while the adjusting element rotates. This eliminates the space requirement for deformation near the adjusting element while preserving the indexing function.
Solution Approach 2:
The patent inverts the traditional arrangement by placing the slots in the stationary body rather than in the moving adjusting element. The indexing holes are now fixed features in the body that receive corresponding pins on the rotating adjusting element. This reversal allows precise indexing without requiring flexible deformation space.
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
Enables easy adjustment and secure locking of the elevation of vehicle parts, preventing unintended movement and ensuring durability by using a mechanism that does not rely on fragile flexible elements, allowing for precise positioning with minimal space requirements.
Implementation Method 1
a body intended to be secured to a support, the body defining a central cylinder having an internal thread and a first opening; a pin with an external thread, a first end for bearing the piece, and a second end. The pin and the body are connected to one another through their respective threads, and the pin can, when rotated, move in a longitudinal direction to adjust the elevation of its first end.
Implementation Method 2
The pin is provided with at least two longitudinal slots on its second end to define at least two flexible legs. The body has, on its internal surface, two bosses respectively arranged on longitudinal arms of a handle. The bosses are configured to bend the flexible legs and to fit into the slots during the rotational movement of the pin and thus index the elevation position of the piece.
Data Source
AI summary
A device for adjusting an elevation of a piece comprises a body and a pin. The body is intended to be secured to a support, and has an internal surface defining a central cylinder provided with an internal thread and having a first opening. The pin has an external thread, a first end for carrying the piece, and a second end. The pin and the body are connected to one another through their respective threads. The pin can, when rotated, move in a longitudinal direction to adjust the elevation of its first end. The pin has at least two longitudinal slots on its second end to define at least two flexible legs. The body has at least one boss on its internal surface configured to bend the flexible legs and to fit into one of the slots during the rotational movement of the pin so as to index an elevational position of the piece.