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Variable lead screw for power door actuator

An actuator and lead screw technology, applied in the direction of power transmission/actuator features, transmission devices, door/window accessories, etc., can solve the problem of increasing the cost of the power opening device, increasing the weight of the power opening device, and increasing the power opening device. And other issues

Inactive Publication Date: 2019-04-19
MAGNA CLOSURES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, increasing the size of the motor to extend the life of the power opening device increases the size of the power opening device, increases the weight of the power opening device, and increases the weight of the power opening device, among other things known to those skilled in the art. cost, all of which are highly suboptimal

Method used

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  • Variable lead screw for power door actuator
  • Variable lead screw for power door actuator
  • Variable lead screw for power door actuator

Examples

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Embodiment Construction

[0046] In general, at least one exemplary embodiment of an electrically operated closure mechanism and a system having the same in accordance with the teachings of the present disclosure will now be disclosed. Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail since they would be readily understood by those of ordinary skill in the art i...

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PUM

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Abstract

The present invention provides a variable pitch lead screw assembly and an actuator assembly therewith. The lead screw assembly includes a lead screw having a groove extending helically along a lengthof the lead screw. The groove is formed having a varying pitch. A drive nut is provided having a body with a through bore configured for receipt of the lead screw therethrough. The drive nut has teeth extending radially inwardly into the through bore for receipt in the groove of the lead screw. The teeth are pivotal in multiple directions relative to the body to allow the teeth to pivot in multiple directions within the groove.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 570,755, filed October 11, 2017, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to power door systems for motor vehicles, and more particularly, to power door actuators operable for moving a door relative to a vehicle body between an open position and a closed position. Background technique [0004] This section provides background information related to the present disclosure which is not necessarily prior art. [0005] Automotive closures such as liftgates and other types of door closures generally provide convenient access to the cargo of motor vehicles, such as hatchbacks, vans, and other utility vehicle. Typically, liftgates, as well as other door closure members, are manually operated, requiring manual labor to move the liftgate between an open position ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F15/60F16H25/20F16H25/24
CPCE05F15/60F16H25/20F16H25/24E05F15/622E05Y2900/531E05Y2900/546F16H25/2261F16H2025/2075F16H2025/2087E05B81/40
Inventor 约翰·P·麦科克尔
Owner MAGNA CLOSURES INC