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US 9,599,137 B2Granted
Internal locking mechanism for a hold open rod
AssigneeMarathonNoroco Aerospace, Inc.
InventorsRyan A. Wheeler, Julio Palma
Life of this patent
Estimating the term…
Abstract
A hold open rod may include: an inner member; an outer member configured to have the inner member slide in and out of the outer member; a locking mechanism including a portion attached to the outer member and a portion attached to the inner member; a locking plug configured to move axially along an axis of the inner, outer members; a locking dog configured to move radially between a locking position and an unlocking position and a release cable operatively connected to the locking plug and configured to move the locking plug to the unlocking position. A method of actuating a lock mechanism on a hold open rod may also be provided.
Claims17
A hold open rod comprising:
- an inner member;
- an outer member configured to have the inner member slide in and out of the outer member;
- a locking mechanism including a portion attached to the outer member and a portion attached to the inner member wherein the two portions are selectively locked to each other thereby locking the inner and outer members with respect to each other, wherein the portion attached to the inner member is at least partially arranged inside the inner member;
- the portion of the locking mechanism attached to the outer member being attached to an open end of the outer member and extending axially from the open end of the outer member;
- a locking plug configured to move axially along an axis of and with respect to the inner member, the outer member and the locking mechanism to a locking and unlocking position, wherein the locking plug is at least partially arranged inside the portion attached to the inner member and wherein the locking plug is arranged in the portion extending axially from the open end of the outer member when in the locking position;
- a locking dog configured to move radially between a locking position, where the locking dog is forced into an internal groove in the portion of the locking mechanism attached to the outer member as a result of a camming action with the locking plug as the locking plug moves axially, and an unlocking position;
- a release mechanism operatively connected to the locking plug and configured to move the locking plug to the unlocking position when the release mechanism is placed in tension;
- and
- a spring biasing the locking plug to the locking position when the internal groove of the outer member and the locking dog are co-positioned to allow locking;
- wherein the release mechanism comprises a cable configured to compress the spring to move the locking plug to a position placing the locking dog in the unlocking position, and
- wherein the release mechanism extends outside the outer member.
8 more elements
A hold open rod comprising:
- an inner member;
- an outer member configured to have the inner member slide in and out of the outer member;
- a locking mechanism including a portion attached to and extending from an end of the outer member and a portion attached to and extending from an end of the inner member wherein the two portions are selectively locked to each other thereby locking the inner and outer members with respect to each other, wherein the portion attached to the inner member is at least partially arranged inside the inner member;
- the portion of the locking mechanism attached to the outer member being attached to an open end of the outer member and extending axially from the open end of the outer member;
- a locking plug configured to move axially along an axis of and with respect to the inner member, the outer member and the locking mechanism to a locking and unlocking position, wherein the locking plug is at least partially arranged inside the portion attached to the inner member and wherein the locking plug is arranged in the portion extending axially from the open end of the outer member when in the locking position;
- a locking dog configured to move radially between a locking position, where the locking dog is forced into an internal groove in the portion of the locking mechanism attached to the outer member as a result of a camming action with the locking plug as the locking plug moves axially, and an unlocking position;
- a release mechanism operatively connected to the locking plug and configured to move the locking plug to the unlocking position when the release mechanism is placed in tension;
- a spring biasing the locking plug to the locking position when the internal groove of the outer member and the locking dog are co-positioned to allow locking;
- wherein the release mechanism comprises a cable configured to compress the spring to move the locking plug to a position placing the locking dog in the unlocking position, and
- wherein the release mechanism extends outside the outer member.
7 more elements
Dependencies are inferred from the claim text.