Gear Case Mounting Arm for Actuator Alignment
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Solution Overview
Problem
The mounting of seat adjusting actuators in electric motor devices to seat frames is cumbersome and time-consuming, and the configuration of components can negatively impact the functionality and performance due to various forces and the number and position of fastening mechanisms, affecting the drive of these actuators.
Innovation Solution
A gear case design featuring a gear housing with a first and second receptacle, an elongated receptacle, a connecting portion, and a mounting arm, which houses a worm wheel and output gear, allowing for secure mounting to a mounting surface without interference from fastening components, ensuring proper alignment and operation of the actuator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mounting methods are used for seat adjusting actuators, then the actuator can be mounted to the seat frame, but the mounting process becomes cumbersome and time-consuming
Solution Approach 1:
The gear case is divided into multiple receptacles (first receptacle for worm wheel, second receptacle for output gear, elongated receptacle for shaft) that can be independently assembled and mounted. This segmentation allows for easier handling and installation of the actuator components, reducing mounting complexity and time.
Solution Approach 2:
The gear assembly components (worm wheel, output gear, shaft portions) are pre-positioned within their respective receptacles during manufacturing. This preliminary assembly eliminates the need for complex alignment operations during installation, allowing the entire gear case to be mounted as a pre-assembled unit, significantly reducing mounting time and effort.
2Strength
If fastening mechanisms are positioned close to the gear assembly, then the structural integrity is improved, but the functionality and performance of the actuator drive is negatively affected
Solution Approach 1:
The mounting arm is extracted as a separate component that extends from the first receptacle, positioning the mounting function away from the gear assembly. This allows fastening mechanisms to be located on the mounting arm rather than directly on the gear case, separating the structural support function from the drive mechanism and eliminating interference with actuator performance.
Solution Approach 2:
The mounting arm serves as an intermediary component between the gear case and the mounting surface. It provides a dedicated interface for fastening mechanisms while maintaining proper spacing and alignment, allowing the gear assembly to remain undisturbed and fully functional while still achieving secure mounting to the seat frame.
3Reliability
If the number of fastening components is increased, then the mounting security is improved, but the complexity of the gear case construction increases
Solution Approach 1:
The mounting arm is designed as a multi-functional component that simultaneously provides structural support, serves as a mounting interface, and positions the fastening mechanisms. This universal design allows multiple fastening points to be integrated into a single extended structure rather than requiring separate mounting features throughout the gear case, maintaining security while reducing overall complexity.
Data Source
AI summary
A gear housing includes a first receptacle, a second receptacle, an elongated receptacle, a connecting portion, and a mounting arm. The first receptacle is configured to house a worm wheel. The second receptacle is configured to house an output gear. The elongated receptacle is configured to house a first portion of a shaft of a drive assembly. The elongated receptacle extends at least partly alongside the first receptacle and the second receptacle. The connecting portion is connectable to another housing that houses a second portion of the shaft of the drive assembly. The mounting arm extends outward from the first receptacle. The mounting arm is disposed between circumferentially adjacent fastening components along a periphery of the first receptacle. The first fastening component is disposed at a juncture between the first receptacle and the second receptacle. The second fastening component overlaps a part of the elongated receptacle.