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Patent Searching and Data


Title:
ELECTRIC LINEAR ACTUATOR AND ELECTRIC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/018338
Kind Code:
A1
Abstract:
The present invention is an electric linear actuator, wherein: a gear case (30) for housing a gear speed reducer (41) is molded from a reinforcing fiber-containing resin; between a gear support section (39) and another gear support section (48), and between yet another gear support section (49) and still another different gear support section (51), ribs (52, 54) for connecting said gear support sections, which are for supporting gears in the gear case (30), are respectively provided; the resin reinforcing fibers are oriented parallel to the directions in which said ribs (52, 54) extend; and the linear expansion coefficients between the gear support section (39) and the other gear support section (48), and between the yet another gear support section (49) and still another different gear support section (51) are made to approach the linear expansion coefficient of the gears of the gear speed reducer (41) to prevent the occurrence of changes in gear meshing due to temperature changes.

Inventors:
SAKURAI RYOU (JP)
MURAMATSU MAKOTO (JP)
Application Number:
JP2016/071524
Publication Date:
February 02, 2017
Filing Date:
July 22, 2016
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D55/225; B29C70/06; B60T13/74; F16D65/18; F16H57/023; F16H57/032; F16D121/24; F16D125/48
Foreign References:
JP2011218757A2011-11-04
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
Naoya Kamata (JP)
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