Resettable force limiting device

Details Resettable force limiting device Resettable force limiting device

1981-12-28

1984-07-17

Staab, Lawrence J.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74412TA, 192 4R, 192150, F16H 2702, F16H 2920

Patent

active

044598670

ABSTRACT:
This invention relates to a resettable force limiting assembly of the ball and screw type employed in a flight control actuation system. The resettable force limiting assembly includes a force transmitting reciprocating output member drivingly carried by an actuating member mounted for rotation in a housing. A reversible torque input is mechanically coupled to the actuating member to cause the output member to move in a direction dependent upon the direction of rotation of the input. A reciprocating reaction plate is secured for rotation with the actuating member. In operating cooperation with the reaction plate is a reaction plate engagement assembly that has elements secured against rotation to the housing. The elements are disposed on either side of the reaction plate. The elements have compression springs coupled thereto to resiliently separate the elements while allowing the elements to individually move towards and away from the reaction plate. The reaction plate, in turn, has springs resiliently positioning the reaction plate between a pair of force transmitting means in the form of snap rings secured to the actuating member whereby tension and compression forces above a predetermined value experienced by the output member result in the reaction plate being deflected into engagement with one of the reaction plate engagement elements depending upon the direction of the tension and compression forces experienced by the output member to thereby cause any additional input torque to be reacted into the housing. Reverse rotation of the input torque will result in the release of one of the reaction plate engagement elements to thereby reset the force limiting assembly.

REFERENCES:
patent: 2701478 (1955-02-01), Riess
patent: 3269199 (1966-08-01), Deehan et al.
patent: 3802281 (1974-04-01), Clarke
patent: 3968705 (1976-07-01), Amano et al.
patent: 3994178 (1976-11-01), Hore
patent: 4179944 (1979-12-01), Conner
patent: 4318304 (1982-03-01), Lang

Affiliated with

Also associated with

Rating

Resettable force limiting device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resettable force limiting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resettable force limiting device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1485646