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WO2025179000A1 - Ensemble disque moteur concentrique avec plaque oscillante interne - Google Patents

Ensemble disque moteur concentrique avec plaque oscillante interne

Info

Publication number
WO2025179000A1
WO2025179000A1 PCT/US2025/016549 US2025016549W WO2025179000A1 WO 2025179000 A1 WO2025179000 A1 WO 2025179000A1 US 2025016549 W US2025016549 W US 2025016549W WO 2025179000 A1 WO2025179000 A1 WO 2025179000A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth plate
guide
bracket
plate
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2025/016549
Other languages
English (en)
Inventor
David M. Runde
Ronald A. Ii Zimmerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magna Seating Inc
Original Assignee
Magna Seating Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magna Seating Inc filed Critical Magna Seating Inc
Publication of WO2025179000A1 publication Critical patent/WO2025179000A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B60N2/2252—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor

Definitions

  • the present invention relates to a power disc assembly for use in an automotive vehicle. More particularly, the invention relates to a concentric power disc assembly having an internal oscillation plate.
  • Disc locking mechanisms for use in a seat assembly of an automotive vehicle are known in the art.
  • One common type of disc locking mechanism is a power disc assembly.
  • Typical power disc assemblies include a fixed plate and a movable plate rotatably coupled to the fixed plate.
  • the fixed plate is often formed to include a toothed outer profile
  • the movable plate is often formed to include a toothed inner profile.
  • the toothed outer profile could be part of the movable plate
  • the toothed inner profile could be part of the fixed plate.
  • the toothed outer profile typically has at least one less tooth than the toothed inner profile.
  • the power disc assembly ty pically includes a drive mechanism disposed between the movable plate and the fixed plate and operable for urging the movable plate to rotate relative to the fixed plate.
  • the drive mechanism typically includes a cam and a pair of wedges that define an eccentricity’, which presses the toothed outer profile and the toothed inner profile into each other at an engagement point defined by the eccentricity'.
  • the cam is rotated in a first direction or an opposite second direction
  • the wedges are also driven in the first or second direction, causing the direction of the eccentricity to change and therefore shifts the engagement point of the toothed outer profile in the toothed inner profile.
  • the shifting of the engagement point manifests itself as a wobbling rotational movement of the movable plate in the first or second direction.
  • a power disc assembly for use in an automotive vehicle.
  • the power disc assembly includes an A-bracket, a B-bracket, and an output tooth plate rotationally coupled to one of the A-bracket and the B-bracket and including a plurality 7 of output teeth spaced circumferentially apart around the output tooth plate.
  • the power disc assembly also includes an input tooth plate having a plurality of input teeth spaced circumferentially apart around the input tooth plate and meshingly engaged with the plurality of output teeth on the output tooth plate, wherein the plurality 7 of output teeth and the plurality of input teeth are different by at least one tooth.
  • the power disc assembly also includes a drive shaft rotatably coupled to one of the input tooth plate and the output tooth plate, a guide plate, a retaining ring including an inboard rim and a central aperture, wherein the inboard rim extends circumferentially around the retaining ring and is fixedly coupled to the other one of the A-bracket and the B-bracket and the central aperture extends axially through the retaining ring.
  • the input tooth plate is slidably coupled to the guide plate and movable along a first axis between a first slot position and a second slot position and the guide plate is slidably coupled to the retaining ring and movable along a second axis perpendicular to the first axis between a first tab position and a second tab position.
  • a power disc assembly for use in an automotive vehicle.
  • the power disc assembly includes an A-bracket. a B-bracket, an output tooth plate rotationally coupled to one of the A-bracket and the B-bracket and including a plurality 7 of output teeth spaced circumferentially apart around the output tooth plate, and an input tooth plate.
  • the input tooth plate includes an upper guide pin and a lower guide pin projecting in an axial direction and having respective centerlines which are parallel to each other, and which extend axially through a first axis.
  • the input tooth plate also includes a plurality of input teeth spaced circumferentially apart around the input tooth plate and meshingly engaged with the plurality 7 of output teeth on the output tooth plate, and wherein the plurality of output teeth and the plurality 7 of input teeth are different by at least one tooth.
  • the power disc assembly also includes a drive shaft rotatably coupled to one of the input tooth plate and the output tooth plate, a guide plate, and a retaining ring.
  • Figure 1 is a perspective view of a power disc assembly, according to one embodiment of the present invention.
  • Figure 2 is an exploded view of the power disc assembly of Figure 1;
  • Figure 3 is a perspective view of the guide plate of Figure 2;
  • Figure 4 is a perspective view of the input tooth plate of Figure 2;
  • Figure 5 is a perspective view of the retaining ring of Figure 2;
  • Figure 6 is a cross-sectional view of the power disc assembly of Figure 1 taken along line 6-6;
  • Figure 7 is a cross-sectional view of the power disc assembly of Figure 1 taken along line 7-7;
  • Figure 8 is a perspective view of a power disc assembly, according to a second embodiment of the present invention.
  • Figure 9 is an exploded view of the power disc assembly of Figure 8;
  • Figure 10 is a perspective view of the guide plate of Figure 9;
  • Figure 11 is a perspective view of the input tooth plate of Figure 9;
  • Figure 12 is a perspective view of the retaining ring of Figure 9;
  • Figure 13 is a cross-sectional view of the power disc assembly of Figure 8 taken along line 13-13;
  • Figure 14 is a cross-sectional view of the power disc assembly of Figure 8 taken along tine 14-14;
  • Figure 15 is a left side view of the power disc assembly of Figure 8 with the B-bracket omitted, showing the input tooth plate in a first slot position;
  • Figure 16 is a left side view of the power disc assembly of Figure 15, showing the input tooth plate in a second slot position;
  • Figure 17 is a left side view- of the power disc assembly of Figure 16, showing the guide plate in a first tab position;
  • Figure 18 is a left side view of the power disc assembly of Figure 17. showing the guide plate in a second tab position;
  • Figures 19-24 are semi-transparent left side views of the pow er disc assembly of Figure 18, showing the input tooth plate and the guide plate in various relative positions as the output tooth plate is rotated;
  • Figure 25 is a right side view' of the pow er disc assembly of Figure 24 with the output drive plate in a first rotational position
  • Figure 26 is a right side view of the pow er disc assembly of Figure 25 with the output drive plate in a second rotational position.
  • FIGS 1-26 illustrate a power disc assembly 10 for use in an automotive seat assembly, according to embodiments described herein.
  • Directional references employed or shown in the description, figures, or claims, such as top, bottom, upper, lower, upward, downward, lengthwise, widthwise, left, right, and the like, are relative terms employed for ease of description and are not intended to limit the scope of the invention in any respect.
  • like numerals indicate like or corresponding parts throughout the several views.
  • FIGS 1-7 illustrate a power disc assembly 10, according to a first embodiment.
  • the power disc assembly 10 includes an electric motor 12. a drive shaft 14, an A-bracket 16, and a B-bracket 18.
  • the power disc assembly 10 is configured to selectively rotate one of the A- bracket 16 and B-bracket 18 relative to the other one of the A-bracket 16 and the B-bracket 18 around a longitudinal axis 20 of the power disc assembly 10.
  • the B- bracket 18 is rotationally fixed, and the A-bracket 16 is rotatably coupled to the B-bracket 18 via the power disc assembly 10.
  • the A-bracket 16 might be rotationally fixed, with the B-bracket 18 rotatable relative to the A-bracket 16 without altering the scope of the present invention.
  • the electric motor 12 is fixedly coupled to the A-bracket 16 and operatively coupled to the drive shaft 14.
  • the drive shaft 14 is driveably coupled to the A-bracket 16.
  • the A- bracket 16 includes a cam aperture 22 extending axially therethrough.
  • the B-bracket 18 includes a retainer hole 24 extending axially therethrough and a plurality of bracket slots 26 spaced circumferentially apart and around the retainer hole 24.
  • the power disc assembly 10 also includes a cam assembly 28 which is selectively repositionable, as is commonly known in the art.
  • the cam assembly 28 includes a cam ring (not shown), wedge(s) (not shown), a w edge spring (not shown), and a cover plate (not shown), as is commonly known in the art.
  • the components of the cam assembly 28 are not illustrated for simplicity.
  • An exemplary known cam assembly is described in U.S. Patent 5,871,414.
  • the cam assembly 28 also includes a flange 30 extending in a circumferential direction around the longitudinal axis 20, a first shoulder 32 projecting axially away from the flange 30, a second shoulder 34 projecting axially away from the first shoulder 32, a collar 36 projecting axially from the second shoulder 34, and a splined hole 38 extending axially therethrough.
  • the first shoulder 32, second shoulder 34, and/or collar 36 is ty pically eccentric to the splined hole 38 creating a camming feature within the cam assembly 28.
  • the power disc assembly 10 also includes a guide plate 40, alternatively described as an oscillation plate 40.
  • the guide plate 40 is generally ring-shaped and includes a cam hole 42, an upper guide slot 44, a lower guide slot 46, a forw ard guide tab 48, a rearward guide tab 50, and an outer rim 52.
  • the cam hole 42 extends axially therethrough and is aligned with the longitudinal axis 20 of the guide plate 40.
  • the upper and lower guide slots 44, 46 extend axially through the guide plate 40 with the cam hole 42 spaced between the upper and lower guide slots 44, 46.
  • the upper and lower guide slots 44, 46 are elongated slots extending between a top end 54, 56 and a bottom end 58, 60, respectively, and have a longitudinal axis aligned with a vertical axis 62.
  • the forward guide tab 48 and the rearward guide tab 50 project radially away from the outer rim 52 of the guide plate 40 in opposing directions and have a centerline aligned with a horizontal axis 64.
  • the horizontal axis 64 is generally perpendicular to the vertical axis 62.
  • the forward and rearward guide tabs 48, 50 include an upper side 66, 68 opposing a lower side 70, 72, respectively, extending generally parallel to the horizontal axis 64.
  • the vertical axis 62 and the horizontal axis 64 might be alternatively described as a first axis 62 and a second axis 64 which is generally perpendicular to the first axis 62 without altering the scope of the present invention.
  • the power disc assembly 10 also includes an input tooth plate 74.
  • the input tooth plate 74 is generally ring-shaped and extends axially along the longitudinal axis 20 betw een an inboard surface 76 and an outboard surface 78.
  • the input tooth plate 74 also includes a center hole 80, a plurality of input teeth 82, an upper guide pin 84, and a lower guide pin 86.
  • the center hole 80 is aligned with the longitudinal axis 20 and extends axially through the input tooth plate 74.
  • the plurality of input teeth 82 are spaced apart in a circumferential direction around the center hole 80.
  • the upper and lower guide pins 84 are provided to provide a circumferential direction around the center hole 80.
  • the upper and lower guide pins 84, 86 project axially away from the inboard surface 76 with the plurality of input teeth 82 and the center hole 80 spaced therebetween. Further, the upper and lower guide pins 84, 86 have respective centerlines which are parallel to each other, and which extend axially through the vertical axis 62.
  • the powder disc assembly 10 also includes an output tooth plate 88 which is rotationally fixed to the B-bracket 18.
  • the output tooth plate 88 is generally ringshaped with a rim surface 89 extending axially between an inboard surface 90 and an outboard surface 92.
  • the output tooth plate 88 also includes a center aperture 94, a plurality of output teeth 96, and a plurality of engagement bosses 98.
  • the center aperture 94 is aligned with the longitudinal axis 20 and extends axially through the output tooth plate 88.
  • the plurality of output teeth 96 are spaced circumferentially apart and around the center aperture 94.
  • the plurality of output teeth 96 are configured to meshingly engage with the plurality of input teeth 82 on the input tooth plate 74.
  • one of the plurality of input and output teeth 82, 96 is different from the other one of the plurality of input and output teeth 82, 96 by at least one tooth.
  • the plurality of engagement bosses 98 project axially away from the outboard surface 92 of the output tooth plate 88 and are spaced circumferentially apart and around the center aperture 94.
  • the power disc assembly 10 also includes a retaining ring 100 fixedly coupled to the A-bracket 16.
  • the retaining nng 100 is generally nng-shaped with an outer surface 102 extending circumferentially around the longitudinal axis 20.
  • the retaining ring 100 includes a central aperture 104, a guide surface 106, an inboard rim 108, an inner shoulder 110, an outboard rim 112, a forward guide slot 114, and a rearward guide slot 116.
  • the central aperture 104 extends axially through the retaining ring 100 and is aligned with the longitudinal axis 20.
  • the guide surface 106 extends circumferentially around the central aperture 104 and extends in a radial direction.
  • the inboard rim 108 projects axially away from an outer circumference of the guide surface 106 and extends circumferentially along the outer surface 102.
  • the inner shoulder 110 projects axially away from an inner circumference of the guide surface 106 and extends circumferentially around the central aperture 104.
  • the outboard rim 112 extends radially inward from the inner shoulder 110.
  • the forward guide slot 114 and the rearward guide slot 116 extend from the guide surface 106 through the inboard rim 108 with the central aperture 104 spaced between the forward and rearward guide slots 114, 116.
  • the forward and rearward guide slots 114, 116 have a slot centerline aligned with the horizontal axis 64.
  • the power disc assembly 10 also includes a cam retainer 118.
  • the cam retainer 118 is ring-shaped and includes a retainer rim 120 extending in a circumferential direction and a central passageway 122 extending axially therethrough.
  • the first shoulder 32 of the cam assembly 28 extends axially through the cam aperture 22 of the A-bracket 16 with the flange 30 of the cam assembly 28 abutting the A-bracket 16.
  • the drive shaft 14 is fixedly coupled to the splined hole 38 in the cam assembly 28.
  • the guide plate 40 is spaced axially between the input tooth plate 74 and the A-bracket 16 along the cam assembly 28.
  • the first shoulder 32 of cam assembly 28 extends axially at least partially through the cam hole 42 in the guide plate 40.
  • the second shoulder 34 on the cam assembly 28 extends axially through the center hole 80 in the input tooth plate 74.
  • the upper and lower guide pins 84, 86 on the input tooth plate 74 extend axially at least partially through the upper and lower guide slots 44, 46, respectively, on the guide plate 40.
  • the output tooth plate 88 is spaced axially along the collar 36 on the cam assembly 28 with the plurality of output teeth 96 meshingly engaged with the plurality of input teeth 82 on the input tooth plate 74.
  • the plurality of engagement bosses 98 extend at least partially through a respective one of the plurality of bracket slots 26 in the B-bracket 18 such that the output tooth plate 88 is rotatably fixed to the B-bracket 18.
  • the inboard rim 108 of the retaining ring 100 is fixedly coupled to the A-bracket 16.
  • the rim surface 89 of the output tooth plate 88 spaced axially along the cam assembly 28 between the outboard rim 112 on the retaining ring 100 and the input tooth plate 74.
  • the forward and rearward guide tabs 48, 50 extend through the forward and rearward guide slots 114, 116, respectively.
  • the cam retainer 118 is inserted into the retainer hole 24 on the B-bracket 18 and coupled to the collar 36 on the cam assembly 28.
  • the cam assembly 28 is rotatable relative to the output tooth plate 88.
  • the retaining ring 100 contains and supports the input tooth plate 74, the output tooth plate 88, and the guide plate 40.
  • the electric motor 12 is driveably coupled to the drive shaft 14 which is fixedly coupled to the splined hole 38 in the cam assembly 28.
  • the electric motor 12 selectively rotates the drive shaft 14 in a first rotational direction 124a and a second rotational direction 124b which opposes the first rotational direction 124a.
  • the cam assembly 28 is selectively repositionable, as is commonly known in the art.
  • the cam assembly 28 rotationally couples the input tooth plate 74 to the drive shaft 14
  • the input tooth plate 74 is rotationally fixed to the guide plate 40 via the upper and lower guide pins 84, 86 on the input tooth plate 74 interacting with the upper and lower guide slots 44, 46, respectively, on the guide plate 40.
  • the input tooth plate 74 can freely move up and down vertically with respect to the guide plate 40 as the upper and lower guide pins 84, 86 on the input tooth plate 74 move along the upper and lower guide slots 44, 46, respectively, in the guide plate 40.
  • the guide plate 40 is rotationally fixed relative to the retaining ring 100 by the forward and rearward guide tabs 48, 50 on the guide plate 40 interacting with the forward and rearward guide slots 114, 116, respectively, on the retaining ring 100.
  • the guide plate 40 can freely move laterally forward and backward within the retaining ring 100 as the forward and rearward guide tabs 48, 50 move along the forward and rearward guide slots 114, 116, respectively.
  • the output tooth plate 88 is rotationally fixed to the B-bracket 18. Further, the plurality of output teeth 96 on the output tooth plate 88 are meshingly engaged with the plurality of input teeth 82 on the input tooth plate 74.
  • the cam assembly 28 defines an eccentricity, which presses the plurality of input teeth 82 on the input tooth plate 74 into engagement with the plurality of output teeth 96 on the output tooth plate 88 at an engagement point defined by the eccentricity, as is commonly know n in the art.
  • the rotation of the drive shaft 14 in the first rotational direction 124a causes the cam assembly 28 to rotate in the first rotational direction 124a, which in turn causes the input tooth plate 74 to rotate in the first rotational direction 124a and travel along the plurality of output teeth 96 on the output tooth plate 88.
  • the input tooth plate 74 rotates with the cam assembly 28, the input tooth plate 74 is free to translate vertically up and down as the upper and lower guide pins 84, 86 travel along the upper and lower guide slots 44, 46, respectively.
  • the guide plate 40 is free to translate horizontally forward and rearward as the forward and rearward guide tabs 48, 50 slide along the forward and rearward guide slots 114, 116, respectively.
  • the sum of the vertical and horizontal motions (in reference to a single plane) of the input tooth plate 74 and the guide plate 40 relative to the retaining ring 100 causes a circular oscillation (not rotation) of the input tooth plate 74 within the retaining ring 100, which in turn allows the A-bracket 16 to rotate concentrically relative to the input rotation of the drive shaft 14. Power is terminated to the electric motor 12 when the A-bracket 16 arrives in a desired position relative to the B-bracket 18.
  • the second embodiment of the power disc assembly 10' includes an output tooth plate 88' fixedly coupled to an A-bracket 16', a cam assembly 28' operatively coupling an input tooth plate 74' to a drive shaft 14', and a retaining ring 100' fixedly coupled to a B- bracket 18'.
  • the power disc assembly 10 of the first embodiment includes the output tooth plate 88 fixedly coupled to the B-bracket 18, and the retaining ring 100 fixedly coupled to the A-bracket 16.
  • the power disc assembly 10' includes the B-bracket 18', a guide plate 40', the input tooth plate 74', and the cam assembly 28'.
  • the B-bracket 18' includes a retainer hole 24' aligned with a longitudinal axis 20' of the power disc assembly 10' and a plurality of ring slots 140' spaced circumferentially apart and around the retainer hole 24'.
  • the B-bracket 18' is rotationally fixed.
  • the guide plate 40' includes a main slot 142', a forward guide tab 48', a rearward guide tab 50', and an outer rim 52'.
  • the main slot 142' extends along a vertical axis 62' between a top end 144' and a bottom end 146' and extends through the longitudinal axis 20' of the power disc assembly 10'.
  • the forward and rearward guide tabs 48', 50' project radially away from the outer rim 52' in opposing directions and have a centerline aligned with a horizontal axis 64'.
  • the input tooth plate 74' includes a center hole 80', a plurality of input teeth 82', an upper guide pin 84', and a lower guide pin 86'.
  • the center hole 80' extends axially through the input tooth plate 74' and is aligned with the longitudinal axis 20'.
  • the plurality of input teeth 82' are spaced apart circumferentially around the center hole 80'.
  • the center hole 80' is spaced between the upper guide pin 84' and the lower guide pin 86'.
  • the upper and lower guide pins 84', 86' are aligned with the vertical axis 62'.
  • the cam assembly 28' includes a shoulder 34', a collar 36', and a splined hole 38'.
  • the shoulder 34' extends in an axial direction and extends circumferentially around the longitudinal axis 20' of the power disc assembly 10'.
  • the collar 36' projects axially from the shoulder 34'.
  • the shoulder 34' and/or the collar 36' is typically eccentric to the splined hole 38' creating a camming feature within the cam assembly 28'.
  • the splined hole 38' extends axially through the cam assembly 28' with a centerline aligned with the longitudinal axis 20' of the power disc assembly 10'.
  • the guide plate 40. 40' includes at least one guide slot 44, 46, 142' wherein the upper and lower guide pins 84, 84', 86, 86' are slidably coupled to the at least one guide slot 44, 46, 142'.
  • the at least one guide slot 44, 46, 142' includes an upper guide slot 44 and a lower guide slot 46 with the upper guide pin 84 slidably coupled to the upper guide slot 44, and the lower guide pin 86 slidably coupled to the lower guide slot 46.
  • the at least one guide slot 44, 46, 142' includes the main slot 142' wherein the upper and lower guide pins 84', 86' are slidably coupled to the main slot 142'.
  • the power disc assembly 10' also includes the output tooth plate 88', the retaining ring 100', and the A-bracket 16'.
  • the output tooth plate 88' includes a center aperture 94', a plurality of output teeth 96'. and a plurality of engagement bosses 98'.
  • the center aperture 94' extends axially through the output tooth plate 88' with a centerline aligned with the longitudinal axis 20' of the power disc assembly 10'.
  • the plurality of output teeth 96' are spaced apart circumferentially around the center aperture 94'.
  • the plurality of engagement bosses 98' are spaced circumferentially apart between the center aperture 94' and the plurality of output teeth 96'.
  • the retaining ring 100' includes an outer surface 102'. an inboard rim 108', an outboard rim 1 12', a central aperture 104', an inner shoulder 110', a forward guide slot 114', a rearward guide slot 116', and a plurality' of ring bosses 148'.
  • the outer surface 102' extends in an axial direction from the inboard rim 108' to the outboard rim 112' and extends circumferentially around the retaining ring 100'.
  • the central aperture 104' extends axially through the retaining ring 100' with a centerline aligned with the longitudinal axis 20' of the power disc assembly 1 O'.
  • the inner shoulder 1 10' extends axially between the inboard rim 108' and the outboard rim 112' wherein the inboard and outboard rims 108', 112' project radially inward from the inner shoulder 110'.
  • the forward and rearward guide slots 114', 116' extend radially from the central aperture 104' in opposing directions through the inboard rim 108' of the retaining ring 100'.
  • the forward and rearward guide slots 114', 116' have a slot centerline aligned with the horizontal axis 64'.
  • the plurality of ring bosses 148' project axially from the inboard rim 108' and are spaced circumferentially apart and around the central aperture 104'.
  • the A-bracket 16' includes the cam aperture 22' and a plurality of engagement slots 150'.
  • the cam aperture 22' extends axially through the A-bracket 16' with a centerline aligned with the longitudinal axis 20' of the power disc assembly 10'.
  • the plurality of engagement slots 150' extend axially through the A-bracket 16' and are spaced circumferentially apart and around the cam aperture 22'.
  • the output tooth plate 88' is rotationally fixed to the A-bracket 16'.
  • the plurality of engagement bosses 98' on the output tooth plate 88' extend at least partially through the respective one of the plurality of engagement slots 150' in the A- bracket 16'.
  • the drive shaft 14' is fixedly coupled to the splined hole 38' in the cam assembly 28' and extends axially through the cam aperture 22' in the A-bracket 16'.
  • the drive shaft 14' and the cam assembly 28' rotate together.
  • the collar 36' on the cam assembly 28' extends axially through the center aperture 94' on the output tooth plate 88'.
  • the cam assembly 28' is rotatable relative to the input tooth plate 74', and the cam assembly 28' rotationally couples the input tooth plate 74' to the drive shaft 14', as is commonly known in the art.
  • the shoulder 34' on the cam assembly 28' extends axially through the center hole 80' in the input tooth plate 74'.
  • the output tooth plate 88' is spaced axially between the outboard rim 112' on the retaining ring 100' and the input tooth plate 74'. Further, the guide plate 40' is spaced axially between the input tooth plate 74' and the B-bracket 18'.
  • the retaining ring 100' is rotationally fixed to the B-bracket 18' and defines a fixed ground.
  • the plurality of ring bosses 148' on the retaining ring 100' extend at least partially through the respective one of the plurality’ of ring slots 140' on the B-bracket 18'.
  • the plurality of input teeth 82' on the input tooth plate 74' are meshingly engaged with the plurality of output teeth 96' on the output tooth plate 88'.
  • the upper and lower guide pins 84', 86' on the input tooth plate 74' extend axially at least partially through the main slot 142' in the guide plate 40'.
  • the input tooth plate 74' is constrained to vertical motion only relative to the guide plate 40' due to the configuration of the upper and lower guide pins 84', 86' and the main slot 142'.
  • the upper and lower guide pins 84', 86' are free to travel along the vertical axis 62' along the main slot 142' (arrow 152') with the motion of the upper and lower guide pins 84', 86' constrained by the top and bottom ends 144'. 146', respectively, of the main slot 142' in the guide plate 40'.
  • the input tooth plate 74' is shown in afirst slot position 154' in Figure 15, with the upper guide pin 84' adjacent or in contact w ith the top end 144' of the main slot 142'.
  • the input tooth plate 74' is shown in a second slot position 156' in Figure 16 different than the first slot position 154', with the lower guide pin 86' adjacent or in contact with the bottom end 146' of the main slot 142'.
  • the forward and rearward guide tabs 48', 50' on the guide plate 40' extend at least partially through the forw ard and rearward guide slots 114', 116', respectively, in the retaining ring 100'.
  • the guide plate 40' is constrained to horizontal motion only relative to the retaining ring 100' due to the configuration of the forward and rearward guide tabs 48', 50' in combination with the respective forward and rearward guide slots 114, 1 16'.
  • the guide plate 40' is free to travel along the horizontal axis 64' relative to the retaining ring 100' as the forward and rearward guide tabs 48', 50' slide along the forward and rearward guide slots 114'. 116', respectively, as illustrated by arrow 158'.
  • the horizontal motion (arrow 158') of the guide plate 40' is constrained by the inboard rim 108' on the retaining ring 100'.
  • the guide plate 40' is shown in a first tab position 160' in Figure 17, with the forward guide tab 48' inserted into the forward guide slot 114' and the outer rim 52' of the guide plate 40' in contact with or adjacent to the inboard rim 108' near the forward guide slot 114'.
  • the guide plate 40' is shown in a second tab position 162' in Figure 18 different than the first tab position 160', with the rearward guide tab 50' inserted into the rearward guide slot 116' and the outer rim 52' of the guide plate 40' in contact with or adjacent to the inboard rim 108' near the rearward guide slot 116'.
  • the input tooth plate 74' is rotationally fixed relative to the B-bracket 18' since the upper and lower guide pins 84', 86' are slidably coupled to the main slot 142' in the guide plate 40', the guide plate 40' is rotationally fixed relative to the retaining ring 100' by the forward and rearward guide tabs 48', 50' slidably coupled to the forward and rearward guide slots 114', 116', respectively, in the retaining ring 100', and the retaining ring 100' is coupled to the B-bracket 18' by the plurality' of ring bosses 148' inserted into the respective one of the plurality' of ring slots 140' in the B-bracket 18'.
  • the point of engagement between the plurality of input teeth 82' on the input tooth plate 74' and the plurality of output teeth 96' changes as the cam assembly 28' rotates, which causes the output tooth plate 88' to travel along the input tooth plate 74' in the first rotational direction 124a'.
  • the input tooth plate 74' is rotationally fixed relative to the B-bracket 18' via the interfaces with the guide plate 40' and the retaining ring 100', the input tooth plate 74' is allowed to translate vertically and horizontally (in reference to a single plane) within the vertical clearance between the upper and lower guide pins 84', 86’ and the main slot 142' and within the horizontal clearance between the forward and rearward guide tabs 48', 50' and the respective forward and rearward guide slots 114', 116'.
  • the horizontal and vertical motion of the input tooth plate 74' is driven by the rotation of the cam assembly 28' as the output tooth plate 88' travels along the input tooth plate 74'.
  • FIGS 19-24 illustrate the relative movement of the input tooth plate 74' and the guide plate 40' in response to the rotation of the cam assembly 28' as the drive shaft 14' rotates and the output tooth plate 88' travels along the input tooth plate 74'.
  • the oscillation of the input tooth plate 74' as the cam assembly 28' rotates causes the output tooth plate 88' to rotate concentrically relative to the drive shaft 14' inside of the fixed retaining ring 100'.
  • the A-bracket 16' also rotates concentrically relative to the drive shaft 14' since the A-bracket 16' is fixed to the output tooth plate 88'.
  • the power disc assembly 10, 10' of the present invention includes an A-bracket 16, 16', a B-bracket 18,18', an output tooth plate 88, 88' rotationally coupled to one of the A-bracket 16, 16' and the B-bracket 18, 18', a retaining ring 100, 100' fixedly coupled to the other one of the A-bracket 16, 16' and the B-bracket 18, 18', an input tooth plate 74, 74' meshingly engaged with the output tooth plate 88.
  • the electric motor 12 rotates the drive shaft 14, 14', which rotates the cam assembly 28, 28' and causes one of the input tooth plate 74, 74' and the output tooth plate 88, 88' to travel around the other one of the input tooth plate 74, 74' and the output tooth plate 88, 88’, which in turn causes the input tooth plate 74, 74' to move along the first axis 62, 62' relative to the guide plate 40, 40' between the first slot position 154' and the second slot position 156', and causes the guide plate 40, 40' to move along the second axis 64, 64' relative to the retaining ring 100, 100' between the first tab position 160' and the second tab position 162'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Un ensemble disque moteur destiné à être utilisé dans un véhicule automobile comprend un support A, un support B et une plaque dentée de sortie accouplée en rotation à un support parmi le support A et le support B et comprenant une pluralité de dents de sortie, une plaque dentée d'entrée comportant une pluralité de dents d'entrée engrenées avec la pluralité de dents de sortie, un arbre d'entraînement accouplé en rotation à la plaque dentée d'entrée ou à la plaque dentée de sortie, une plaque de guidage et une bague de retenue accouplée à demeure à l'autre élément parmi le support A et le support B. La plaque dentée d'entrée est accouplée de manière coulissante à la plaque de guidage et mobile le long d'un premier axe et la plaque de guidage est accouplée de manière coulissante à la bague de retenue et mobile le long d'un second axe perpendiculaire au premier qui amène le support A à tourner de manière concentrique par rapport au support B.
PCT/US2025/016549 2024-02-20 2025-02-20 Ensemble disque moteur concentrique avec plaque oscillante interne Pending WO2025179000A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463555461P 2024-02-20 2024-02-20
US63/555,461 2024-02-20

Publications (1)

Publication Number Publication Date
WO2025179000A1 true WO2025179000A1 (fr) 2025-08-28

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ID=94974056

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2025/016549 Pending WO2025179000A1 (fr) 2024-02-20 2025-02-20 Ensemble disque moteur concentrique avec plaque oscillante interne

Country Status (1)

Country Link
WO (1) WO2025179000A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5871414A (en) 1995-12-27 1999-02-16 Keiper Recaro Gmbh & Co. Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest
US8262165B2 (en) * 2007-05-08 2012-09-11 Toyota Boshoku Kabushiki Kaisha Connection devices
EP2611647B1 (fr) * 2010-08-31 2017-07-12 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Coburg Commande de réglage pour des dispositifs de réglage d'un siège de véhicule automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5871414A (en) 1995-12-27 1999-02-16 Keiper Recaro Gmbh & Co. Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest
US8262165B2 (en) * 2007-05-08 2012-09-11 Toyota Boshoku Kabushiki Kaisha Connection devices
EP2611647B1 (fr) * 2010-08-31 2017-07-12 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Coburg Commande de réglage pour des dispositifs de réglage d'un siège de véhicule automobile

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