# US 10,370,097 B2 · Anti-drive mechanism for rise and fall rotating control systems

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- Number: US 10,370,097 B2
- Document ID: US10370097B2
- Status: Granted
- Kind: B2
- Application number: 15/709,203
- Filed: 2017-09-19
- Published: 2018-02-01
- Granted: 2019-08-06
- Earliest claimed: 2014-10-09
- Assignees: Bell Helicopter Textron Inc.
- Applicants: Bell Helicopter Textron Inc.
- Inventors: Jason L. Hoyle; Frank B. Stamps
- Web page: https://patentgrep.com/patent/US10370097B2

## CPC

- B64C 27/605: including swash plate, spider or cam mechanisms
- B64C 27/32: Rotors
- B64C: AEROPLANES; HELICOPTERS

## Abstract

A rotor blade system includes a hub assembly pivotally attached to a rotor blade, a mast attached to the hub assembly, and a swashplate engaged with the mast, the swashplate includes a non-rotating ring and a rotating ring. The method to raise the swashplate includes using an anti-drive link system pivotally engaged with a transmission top case and pivotally engaged with the non-rotating ring.

## Claims

### Claim 1

A rotor blade system, comprising:
a mast configured to drive a rotor blade;
a swashplate engaged with the mast, the swashplate having:
a non-rotating ring; and
a rotating ring;
an anti-drive link system comprising:
a first and second link configured to extend relative to each other;
wherein the anti-drive link system is pivotally engaged with a transmission top case and pivotally engaged with the non-rotating ring;
wherein the anti-drive system pivotally engages with a single drive point extending from the non-rotating ring; and
wherein the anti-drive link system is configured to raise and lower the swashplate along the mast.

### Claim 2 (depends on 1)

The rotor blade system according to claim 1, further comprising:
a hydraulic system configured for raising and lowering of the swashplate along the mast.

### Claim 3 (depends on 1)

The rotor blade system according to claim 1, further comprising:
a cross link attaching the first link to the second link.

### Claim 4 (depends on 3)

The rotor blade system according to claim 3, further comprising:
a third link pivotally engaged to the first and second link.

### Claim 5 (depends on 1)

The rotor blade system according to claim 1, further comprising:
a third link pivotally engaged to the first and second link.

### Claim 6 (depends on 5)

The rotor blade system according to claim 5, further comprising:
a shaft connecting the third link to the first and second link.

### Claim 7 (depends on 1)

The rotor blade system according to claim 1, wherein the first link and the second link are configured to form an opening therebetween for the mast.

### Claim 8

A rotor blade system, comprising:
a mast configured to drive a rotor blade;
a swashplate engaged with the mast, the swashplate having:
a non-rotating ring; and
a rotating ring;
an anti-drive link system comprising:
a first and second link; and
a third link pivotally coupled to both the first and second link;
wherein the anti-drive link system is pivotally engaged with a transmission top case and pivotally engaged with the non-rotating ring;
wherein the anti-drive system pivotally engages with a single drive point extending from the non-rotating ring; and
wherein the anti-drive link system is configured to raise and lower the swashplate along the mast.

### Claim 9 (depends on 8)

The rotor blade system according to claim 8, wherein the first link and the second link are configured to form an opening therebetween for the mast.

### Claim 10 (depends on 8)

The rotor blade system according to claim 8, further comprising:
a cross link rigidly attaching the first link to the second link.