Disengage device for aircraft control
View Patent ↗A disengage device in an aircraft, which prevents a driving force of a drive unit from transmitting to a control surface, having: a first rod having one end portion connected to the drive unit, the other end portion, and a hollow portion formed to have a predetermined length and open at the other end portion; a branch pipe which is connected to a side wall of the first rod and communicates with the hollow portion; a second rod having one end portion connected to the push-pull rod, the other end portion, and a recess portion formed in a part of a side wall of a portion which extends a predetermined length from the other end portion to the one end portion side and is inserted in the hollow portion; and an engaging member arranged to be freely movable in the branch pipe, which is engagable with the recess portion.
1. A disengage device mounted in an aircraft having a control stick, a control surface, a drive unit to drive the control surface, and a push-pull rod to transmit a driving force of the drive unit or an operation input transmitted through the control stick to the control surface, which prevents the driving force of the drive unit from transmitting to the control surface, comprising:
a first rod comprising one end portion of the first rod which is connected to the drive unit, the other end portion of the first rod, and a hollow portion formed to have a predetermined length and open at the other end portion of the first rod;
a branch pipe which is connected to a side wall of the first rod and an inside of which communicates with the hollow portion;
a second rod comprising one end portion of the second rod connected to the push-pull rod, the other end portion of the second rod, and a recess portion formed in a part of a side wall of a portion which extends a predetermined length from the other end portion of the second rod to the one end portion side of the second rod and is inserted in the hollow portion of the first rod; and
an engaging member which is arranged to be freely movable in the branch pipe, and is engagable with the recess portion.
2. The disengage device as claimed in claim 1 , further comprising,
an elastic member to maintain an engagement state of the engaging member and the recess portion by generating a biasing force to push the engaging member to the recess portion; and
an engagement releasing section which reduces the biasing force of the elastic member to release the engagement state of the engaging member and the recess portion.
3. The disengage device as claimed in claim 2 , further comprising, a biasing force adjusting section to adjust the biasing force of the elastic member.
4. The disengage device as claimed in claim 2 , wherein, the engagement releasing section comprises a push-pull cable connected to the elastic member, and a disengage lever to apply a predetermined tension by an operation thereof to reduce the biasing force of the elastic member.
5. The disengage device as claimed in claim 3 , wherein, the engagement releasing section comprises a push-pull cable connected to the elastic member, and a disengage lever to apply a predetermined tension by an operation thereof to reduce the biasing force of the elastic member.
6. The disengage device as claimed in claim 1 , wherein, the engaging member is formed into a spherical body.
7. The disengage device as claimed in claim 1 , further comprising, an engagement state indication section to indicate whether the first rod and the second rod are in an engagement state or not.
8. The disengage device as claimed in claim 7 , wherein the engagement state indication section comprises a lamp.
9. The disengage device as claimed in claim 8 , further comprising a limit switch to control the lamp to light up or go out.
10. The disengage device as claimed in claim 7 , wherein the engagement indication section comprises a buzzer.
11. The disengage device as claimed in claim 2 , wherein the elastic member comprises a spring.