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Anti-backdrive actuator assembly

A reverse drive, actuator technology, applied in transmissions, gear drives, belts/chains/gears, etc., to solve problems such as increasing system cost and complexity

Active Publication Date: 2017-05-10
DURA OPERATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To prevent back driving, some devices have used clutches or brakes, but these add cost and complexity to the system

Method used

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Examples

Experimental program
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Embodiment Construction

[0013] Referring to the accompanying drawings in more detail, Figure 1-3 An actuator assembly 10 is shown having an output, which may be or include an output shaft 12, which is rotated to move the device and to selectively prevent the device from back-driving the actuator assembly. The term "back-driven" is intended to mean that the device rotates the actuator assembly, in other words, the output drives the input and not the other way around. The means driven by the actuator assembly 10 may include cams, gears, or the like, and the motion may be continuous in the forward direction, in forward and reverse directions, or back and forth between two or more positions, as desired in discrete segments of motion. The actuator assembly 10 can be used with many different devices, one example of which is a gear selector for an automotive transmission, wherein rotation of the assembly causes rotation of the gear selector, thereby changing the selected and engaged transmission gear (fo...

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PUM

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Abstract

An actuator assembly may include a drive, a gear set coupled with the drive, an interface member coupled to the gear set, and an output coupled to the interface member. In at least one position of the interface member the gear set binds to prevent backdrive of the output.

Description

technical field [0001] The present disclosure relates to actuator assemblies, and more particularly, to actuator assemblies that selectively prevent backdriving of an output. Background technique [0002] An actuator can be used to rotate the output shaft and the output shaft can in turn displace or drive the device to change position (including angular position). Back driving can occur where the output shaft rotates unintentionally. In some applications, back-driving is not acceptable and the position of the device needs to be maintained. To prevent backdriving, some devices have used clutches or brakes, but these add cost and complexity to the system. Contents of the invention [0003] In at least some embodiments, an actuator assembly can include: a driver; a gear set coupled with the driver; an interface member coupled to the gear set; and an output coupled to the interface member. In at least one position of the interface member, the gear sets engage to prevent bac...

Claims

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Application Information

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IPC IPC(8): F16H3/44
CPCF16H1/003F16H1/00F16H1/28
Inventor J.郑
Owner DURA OPERATING
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