Adjuster Gear Screw Axial Rotational Securing Mechanism
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Solution Overview
Problem
Existing adjuster mechanisms for vehicle lamps lack efficient and secure methods to adjust the aiming of light beams, particularly in terms of rotational and axial securing, leading to potential manufacturing inefficiencies and component damage from excessive torque.
Innovation Solution
The introduction of an adjuster gear screw with a threaded shaft, a gear head, and a separate gear component, featuring radial protrusions and indents for secure axial and rotational attachment, which enhances coupling strength and prevents component damage by allowing for controlled rotational movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional adjuster mechanism is used for vehicle lamps, then the structure is simple, but the rotational and axial securing is insufficient leading to potential component damage
Solution Approach 1:
The adjuster mechanism is divided into separate functional components: a threaded shaft for axial adjustment, a gear head for rotational movement, and a gear with fingers for engagement. This segmentation allows each component to perform its specific function optimally while providing both rotational and axial securing capabilities.
Solution Approach 2:
The gear is positioned within the gear head, with the gear's fingers extending into the gear head's indents. This nested arrangement allows the gear to rotate within the gear head while maintaining secure engagement, providing both rotational freedom and axial positioning stability.
2Strength
If existing adjuster mechanisms are used, then manufacturing is straightforward, but excessive torque can cause component damage
Solution Approach 1:
The gear head is pre-formed with indents and the gear is pre-formed with corresponding fingers before assembly. This preliminary preparation of engagement features ensures proper alignment and secure coupling when the components are assembled, preventing misalignment issues and enhancing coupling strength.
Solution Approach 2:
The gear acts as an intermediary component between the threaded shaft and the reflector mounting mechanism. The gear's fingers engage with the gear head's indents, providing a controlled interface that transmits torque while preventing excessive force from damaging other components.
3Reliability
If a secure adjuster mechanism is implemented, then component damage is prevented, but the device complexity increases
Solution Approach 1:
The adjuster mechanism incorporates dynamic elements: the threaded shaft allows for controlled linear movement, the gear enables rotational adjustment, and the gear's fingers flexibly engage with the gear head's indents. This dynamic design provides secure component protection while maintaining adjustability and preventing excessive torque transmission.
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 provides a robust and efficient mechanism for adjusting vehicle lamp reflectors, improving manufacturing efficiency and preventing damage from excessive torque, while ensuring precise control over light beam aiming.
Implementation Method 1
an adjuster shaft having a threaded portion and a shaft end
Implementation Method 2
a gear having a gear rear surface, a plurality of teeth positioned along an outer circumference, and a plurality of fingers and a plurality of notches extending along an inner circumference
Data Source
AI summary
An adjuster gear screw is provided that includes an adjuster shaft having a threaded portion and a shaft end, a gear head having a plurality of radial protrusions spaced by a plurality of radial indents, and a flange having a flange front surface, an elongated neck interconnecting the adjuster shaft and the gear head, and a gear having a gear rear surface, a plurality of teeth, and a plurality of fingers and notches extending along an inner circumference, wherein the gear is axially secured to the gear head in a first longitudinal direction via abutment of the gear rear surface with the flange front surface, and in a second longitudinal direction via engagement of the plurality of fingers with the plurality of indents, and wherein the gear is rotationally secured to the gear head via abutment of the plurality of radial protrusions with the plurality of notches.