# US 10,308,363 B2 · Seat footrest

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- Number: US 10,308,363 B2
- Document ID: US10308363B2
- Status: Granted
- Kind: B2
- Application number: 15/848,094
- Filed: 2017-12-20
- Published: 2018-06-28
- Granted: 2019-06-04
- Earliest claimed: 2016-12-22
- Assignees: Textron Innovations Inc.
- Applicants: Textron Aviation Inc.
- Inventors: Barry John Ward
- Web page: https://patentgrep.com/patent/US10308363B2

## CPC

- B64D 11/0643: {Adjustable foot or leg rests}
- A47C 7/506: {of adjustable type}
- A47C 7/5066: {by rotation}
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- A47C: CHAIRS; SOFAS; BEDS

## Abstract

A seat footrest includes a footpad having a supporting plate under a cushioned top side, an arcuate member mechanically coupled to the plate by a first end and pivotally coupled to a seat frame by a second end. The arcuate member is adapted for pivoting the footpad between a stowed position and one or more deployed positions. A lock pin is provided for releasably inserting into a first notch of the arcuate member for securing the footpad in the stowed position and one or more additional notches of the arcuate member for securing the footpad in the one or more deployed positions. A first biasing member is adapted for initiating deployment of the footpad upon release of the lock pin from the first notch, and a second biasing member is adapted for completing deployment of the footpad by raising the footpad to the one or more deployed positions.

## Claims

### Claim 1

A seat footrest, comprising:
an arcuate member mechanically coupled to a footpad by a first end and pivotally coupled to a seat frame by a second end, opposite the first end, wherein the arcuate member is adapted for pivoting the footpad between a stowed position and one or more deployed positions;
a lock pin for releasably inserting into a first notch of the arcuate member for securing the footpad in the stowed position and one or more additional notches of the arcuate member for securing the footpad in the one or more deployed positions;
a first biasing member adapted for initiating deployment of the footpad upon release of the lock pin from the first notch; and
a second biasing member adapted for completing deployment of the footpad by raising the footpad to the one or more deployed positions such that the lock pin inserts into the one or more additional notches, respectively.

### Claim 2 (depends on 1)

The seat footrest of claim 1, wherein the one or more deployed positions includes a horizontal position of the footpad.

### Claim 3 (depends on 2)

The seat footrest of claim 2, wherein the one or more deployed positions includes a reclining position of the footpad between the stowed position and the horizontal position.

### Claim 4 (depends on 1)

The seat footrest of claim 1, wherein the first biasing member includes a torsion spring coupled to the second end of the arcuate member.

### Claim 5 (depends on 1)

The seat footrest of claim 1, wherein the second biasing member is a dual gas-spring assembly mechanically coupled between the seat frame and the arcuate member.

### Claim 6 (depends on 1)

The seat footrest of claim 1, further comprising a telescoping mechanism for extending the footpad to an extended position when deployed in the one or more deployed positions.

### Claim 7 (depends on 6)

The seat footrest of claim 6, wherein the telescoping mechanism slides into a recess of a supporting plate on an underside of the footpad for retracting the footpad to a retracted position.

### Claim 8 (depends on 6)

The seat footrest of claim 6, further comprising a touch latch for locking the telescoping mechanism in the extended position and unlocking the telescoping mechanism from the extended position.

### Claim 9 (depends on 8)

The seat footrest of claim 8, the touch latch comprising:
a pivoting member having a spring bias at a first end, a protruding pin at a second end opposite the first end, and a pivot axis between the first end and the second end,
the pivot axis being coupled to the telescoping mechanism;
the protruding pin being inserted into a track of the footpad for guiding the pivoting member upon sliding of the telescoping mechanism, the track having a bend for receiving the pin such that the pivoting member maintains the slide mechanism in the extended position; and
the spring bias adapted to rotate the pivoting member for moving the protruding pin out of the bend upon fully extending the telescoping mechanism, thereby releasing the footpad for retracting.

### Claim 10 (depends on 6)

The seat footrest of claim 6, further comprising at least one retracting cable reel adapted to retract the telescoping mechanism.

### Claim 11 (depends on 1)

The seat footrest of claim 1, further comprising a release mechanism coupled to the lock pin for disengaging the lock pin for freeing the arcuate member for deployment and stowing.

### Claim 12

A stowable footrest for a seat, comprising:
a footpad having a supporting member;
a first arcuate member mechanically coupled to a first side of the supporting member;
a second arcuate member mechanically coupled to a second side of the supporting member, opposite the first side;
the first arcuate member and the second arcuate member being pivotably coupled to a seat frame for pivoting the footpad between a stowed configuration and a plurality of deployed configurations;
at least one of the first arcuate member and the second arcuate member having a first notch corresponding to the stowed configuration and a plurality of additional notches each corresponding to a respective one of the plurality of deployed configurations;
a lock pin for inserting into one of the first notch or the plurality of additional notches for securing the footpad in the stowed configuration or in the plurality of deployed configurations, respectively; and
a telescoping slide embedded in the supporting member for extending a position of the footpad away from the seat.

### Claim 13 (depends on 12)

The stowable footrest of claim 12, wherein the plurality of deployed configurations include a substantially horizontal configuration and a reclining configuration, the reclining configuration being between the substantially horizontal configuration and the stowed configuration.

### Claim 14 (depends on 12)

The stowable footrest of claim 12, wherein the lock pin is spring-loaded to engage in one of the first notch or the plurality of additional notches, and the lock pin is mechanically coupled to a release cable for enabling the lock pin to disengage from one of the first notch or the plurality of additional notches.

### Claim 15 (depends on 12)

The stowable footrest of claim 12, wherein the telescoping slide further comprises a latch biased to actuate to a first position when the footpad is extended for maintaining the footpad in an extended position, the latch being further biased to actuate to a second position when the footpad is pressed to a full extension enabling retraction of the footpad.

### Claim 16 (depends on 12)

The stowable footrest of claim 12, wherein the telescoping slide further comprises a cable reel, the cable reel being spring loaded to retract the footpad within the footrest supporting member upon the footpad being pressed to the full extension.

### Claim 17 (depends on 12)

The stowable footrest of claim 12, wherein the telescoping slide further comprises an inner slide, which is slidably connected within a middle slide, which is slidably connected within the supporting member.

### Claim 18 (depends on 12)

The stowable footrest of claim 12, further comprising a first torsion spring mechanically coupling the first arcuate member to the seat frame, and a second torsion spring mechanically coupling the second arcuate member to the seat frame, the first and second torsion springs adapted to initiate deployment of the footpad upon disengaging of the lock pin from the first notch.

### Claim 19 (depends on 12)

The stowable footrest of claim 12, further comprising a dual gas-spring assembly mechanically coupled between the seat frame and the arcuate member for raising the footpad to one of the plurality of deployed configurations.

### Claim 20 (depends on 19)

The stowable footrest of claim 19, the dual gas-spring assembly further comprising a first gas spring oriented anti-parallel with a second gas spring.