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US 11,866,150 B2Granted
Propeller safety device
AssigneesHyundai Motor Company, Kia Corporation
InventorsJi Woo Yoo, Youn Sic Nam, Keon Woo Kim, Kwan Ho Moh, Young Heon Kim
Life of this patent
Estimating the term…
Abstract
A propeller safety device is provided. The propeller safety device is configured to insert a moving part of a propeller into a fixed part during a crash of an air mobility to allow a reduction in the total length of the propeller, thereby preventing the propeller from hitting the ground. Accordingly, a secondary accident due to fragments formed when the rotating propeller hits the ground is prevented.
Claims14
A propeller safety device, comprising:
- a shaft generating rotating power;
- a fixed part having a sliding space therein, the fixed part having a first end coupled to the shaft, and a second end configured to be open to communicate with the sliding space;
- a moving part provided at the second end of the fixed part and configured to be pulled out of and inserted into the sliding space, and to form a blade together with the fixed part when the moving part is pulled out of the sliding space;
- and
- a driving module provided at the sliding space of the fixed part and connected to the moving part, and configured to allow the moving part to be inserted into the sliding space when a signal indicative of a crash of an air mobility is input,
- wherein the fixed part includes a fixed portion located in the sliding space of the fixed part, disposed in a width direction of the fixed part and fixed to the fixed part, and to which the driving module is mounted, and
- wherein the moving part has a hollow portion and an open first end such that the fixed portion of the fixed part is inserted into the hollow portion of the moving part when the moving part is inserted into the sliding space of the fixed part.
4 more elements
Dependencies are inferred from the claim text.