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US 12,330,793 B2Granted
Method for translating pins using a rotary actuator
AssigneeAMI Industries, Inc.
InventorDouglas E. Hoover
Life of this patent
Estimating the term…
Abstract
An assembly for an energy attenuation system is described. The assembly offers a lower profile configuration that fits better into tight spaces that exist in the compact seats that are required for military helicopters. The assembly includes a cable that is oriented and positioned to work with the profile. The assembly includes an actuator which ejecting the pins in a multi-stage sequence. The design of the assembly also ensures the pins cannot back drive when the pins are in the ejected position. Additionally, the pins may have part commonality reducing a unique part of the assembly.
Claims20
An assembly comprising:
- a carriage defining a first hole and a second hole;
- a rotary actuator rotatably coupled to the carriage by which the rotary actuator is configured to rotate relative to the carriage between a first angular position, a second angular position, and a third angular position, wherein the rotary actuator includes a cam profile;
- a first pin, wherein at least a portion of the first pin is disposed in the first hole;
- a first compression spring coupled between the carriage and the first pin, wherein the first compression spring abuts the first pin against the cam profile;
- a second pin, wherein at least a portion of the second pin is disposed in the second hole;
- a second compression spring coupled between the carriage and the second pin, wherein the second compression spring abuts the second pin against the cam profile;
- a cable coupled to the rotary actuator, wherein the cable causes the rotary actuator to rotate between the first angular position, the second angular position, and the third angular position, wherein the cam profile translates the first pin relative to the first hole as the rotary actuator rotates from the first angular position to the second angular position, wherein the cam profile translates the second pin relative to the second hole as the rotary actuator rotates from the second angular position to the third angular position;
- and
- an extension spring coupled between the carriage and the rotary actuator, wherein the extension spring is configured to return the rotary actuator to the first angular position.
6 more elements
A system comprising:
- an assembly including:
- a carriage defining a first hole and a second hole;
- a rotary actuator rotatably coupled to the carriage by which the rotary actuator is configured to rotate relative to the carriage between a first angular position, a second angular position, and a third angular position, wherein the rotary actuator includes a cam profile;
- a first pin, wherein at least a portion of the first pin is disposed in the first hole;
- a first compression spring coupled between the carriage and the first pin, wherein the first compression spring abuts the first pin against the cam profile;
- a second pin, wherein at least a portion of the second pin is disposed in the second hole;
- a second compression spring coupled between the carriage and the second pin, wherein the second compression spring abuts the second pin against the cam profile;
- a cable coupled to the rotary actuator, wherein the cable causes the rotary actuator to rotate between the first angular position, the second angular position, and the third angular position, wherein the cam profile translates the first pin relative to the first hole as the rotary actuator rotates from the first angular position to the second angular position, wherein the cam profile translates the second pin relative to the second hole as the rotary actuator rotates from the second angular position to the third angular position;
- and
- an extension spring coupled between the carriage and the rotary actuator, wherein the extension spring is configured to return the rotary actuator to the first angular position;
- a lever coupled to the cable;
- a seat member;
- at least a first sheet and a second sheet;
- and
- a deformable member coupled between the seat member and the carriage,
- wherein the deformable member is configured to deform for attenuating energy as the carriage translates downwards relative to the seat member.
13 more elements
Dependencies are inferred from the claim text.