# US 2021/0276718 A1 · Spring clutch arm assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0276718 A1 - Document ID: US20210276718A1 - Status: Published application - Kind: A1 - Application number: 17/256,897 - Filed: 2018-06-29 - Published: 2021-09-09 - Earliest claimed: 2018-06-29 - Assignees: Safran Seats USA LLC - Applicants: Safran Seats USA LLC - Inventors: Klay E. Gilbert - Web page: https://patentgrep.com/patent/US20210276718A1 ## CPC - B64D 11/0639: {with features for adjustment or converting of seats} - F16F 1/123: {characterised by the ends of the spring being specially adapted, e.g. to form an eye for engagement with a radial insert (F16F1/122, F16F1/125 take precedence)} - F16M 11/2035: {in more than one direction} - F16M 13/022: {repositionable} - B64D 11/00153: {Monitors mounted on or in the seat other than the seat back} - B64D 11/0627: {Seats combined with storage means} - F16M 11/10: around a horizontal axis {(F16M11/12 takes precedence)} - F16M 11/105: {the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation} - F16M 11/12: in more than one direction - F16M 2200/041: for balancing rotational movement of the head - F16M 2200/044: for balancing rotational movement of the undercarriage - F16M 2200/065: with a special structure, e.g. reinforced or adapted for space reduction - Y10S 248/917: Video display screen support - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A spring clutch arm assembly includes a moveable arm comprising a retracted configuration and a deployed configuration, a fixed shaft, and a spring portion comprising a moving portion with a distal end and a coil portion wrapped around the fixed shaft. The moveable arm may include a moveable member. The distal end may be attached to the moveable member. The moveable arm may be held in the deployed configuration by the spring portion. ## Claims ### Claim 1 A spring clutch arm assembly comprising: a moveable arm comprising a retracted configuration and a deployed configuration; a fixed shaft; and a spring portion comprising (i) a moving portion with a distal end, (ii) a coil portion wrapped around the fixed shaft, and (iii) a bushing that interfaces with the fixed shaft and the coil portion, wherein: the bushing comprises a cutout that interfaces with the moving portion; a size of the cutout is adjustable; the moveable arm comprises a moveable member; the distal end is attached to the moveable member; and the moveable arm is held in the deployed configuration by the spring portion. ### Claim 2 (depends on 1) The spring clutch arm assembly of claim 1, wherein the fixed shaft comprises a cylindrical shape and the coil portion comprises a cylindrical opening that approximately corresponds to an outer diameter of the fixed shaft. ### Claim 3 (canceled) ### Claim 4 (depends on 1) The spring clutch arm assembly of claim 1, wherein, during movement of the moveable arm from the deployed configuration toward the retracted configuration, the coil portion comprises a tension diameter such that friction between the coil portion and the fixed shaft increases, wherein the tension diameter is smaller than an equilibrium diameter of the coil portion. ### Claim 5 (depends on 1) The spring clutch arm assembly of claim 1, wherein, during movement of the moveable arm from the retracted configuration toward the deployed configuration, the coil portion comprises a compression diameter such that friction between the coil portion and the fixed shaft decreases, wherein the compression diameter is larger than an equilibrium diameter of the coil portion. ### Claim 6 (depends on 1) The spring clutch arm assembly of claim 1, wherein the spring portion causes resistance to movement of the moveable arm from the retracted configuration toward the deployed configuration. ### Claim 7 (depends on 1) The spring clutch arm assembly of claim 1, wherein the bushing comprises an inner diameter that interfaces with an outer cylindrical surface of the fixed shaft, wherein the bushing is adjustable to change the inner diameter. ### Claim 8 (depends on 7) The spring clutch arm assembly of claim 7, wherein the bushing comprises a clamp fastener to adjust the inner diameter of the bushing. ### Claim 9 (canceled) ### Claim 10 (depends on 1) The spring clutch arm assembly of claim 1, wherein the bushing comprises a spring limit fastener to limit movement of the moving portion relative to the bushing. ### Claim 11 A rotating arm assembly for a passenger seat comprising: a rotating arm comprising a retracted configuration and a deployed configuration; a fixed shaft that is fixed relative to the passenger seat; a spring comprising (i) a moving portion with a distal end and (ii) a coil portion wrapped around the fixed shaft; and a bushing that interfaces with (i) the fixed shaft and (ii) the coil portion, wherein: the bushing comprises an inner diameter that interfaces with an outer cylindrical surface of the fixed shaft and the bushing is adjustable to change the inner diameter. ### Claim 12 (depends on 11) The rotating arm assembly of claim 11, wherein: the rotating arm comprises a moveable member; the distal end is attached to the moveable member; and the rotating arm is held in the deployed configuration by the spring. ### Claim 13 (depends on 11) The rotating arm assembly of claim 11, wherein the fixed shaft comprises a cylindrical shape and the coil portion comprises a cylindrical opening that approximately corresponds to an outer diameter of the fixed shaft. ### Claim 14 (depends on 11) The rotating arm assembly of claim 11, wherein, during movement of the rotating arm from the deployed configuration toward the retracted configuration, the coil portion comprises a tension diameter such that friction between the coil portion and the fixed shaft increases, wherein the tension diameter is smaller than an equilibrium diameter of the coil portion. ### Claim 15 (depends on 11) The rotating arm assembly of claim 11, wherein, during movement of the rotating arm from the retracted configuration toward the deployed configuration, the coil portion comprises a compression diameter such that friction between the coil portion and the fixed shaft decreases, wherein the compression diameter is larger than an equilibrium diameter of the coil portion. ### Claim 16 (depends on 11) The rotating arm assembly of claim 11, wherein the bushing resists movement of the rotating arm from the retracted configuration toward the deployed configuration. ### Claim 17 (canceled) ### Claim 18 (depends on 11) The rotating arm assembly of claim 11, wherein the bushing comprises a clamp fastener to adjust the inner diameter of the bushing. ### Claim 19 A rotating arm assembly for a passenger seat comprising: a rotating arm comprising a retracted configuration and a deployed configuration; a fixed shaft that is fixed relative to the passenger seat a spring comprising (i) a moving portion with a distal end and (ii) a coil portion wrapped around the fixed shaft and a bushing that interfaces with (i) the fixed shaft and (ii) the coil portion, wherein: the bushing comprises a cutout that interfaces with the moving portion; and a size of the cutout is adjustable. ### Claim 20 (depends on 19) The rotating arm assembly of claim 19, wherein the bushing comprises a spring limit fastener to limit movement of the moving portion relative to the bushing.