Rotational brake assembly for a seat locking mechanism

• US 10,155,591 B2
• Filed: 04/15/2016
• Issued: 12/18/2018
• Est. Priority Date: 04/15/2016
• Status: Active Grant

• Current Assignee: Goodrich Corporation (Rtx Corporation)
• Original Assignee: Goodrich Corporation (Rtx Corporation)
• Inventors: Davis, Kenneth J., Hyde, Patrick Emmett, Tedtman, Scott H.
• Primary Examiner(s): Schwartz, Christopher P
• Application Number:
  US15/130,259
• Publication Number:
  US 20170297721A1
• Time in Patent Office: 977 Days
• Field of Search: 188 31, 188 68, 188 70 R, 188 827, 188265, 267131, 267133, 297362, 29736211, 2974631, 2974632, 297464, 297473, 297483
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/06 slidable B60N2/12 , B60N2/2209 take precedence
• CPC Class Codes: B60N 2/062 transversally slidable
• CPC Class Codes: B60N 2/0717 Rounded, e.g. circular
• CPC Class Codes: B60N 2/146 characterised by the locking device
• CPC Class Codes: B60N 2/938 and provided with braking systems
• CPC Class Codes: B60N 2002/924 using electric or hydraulic energy
• CPC Class Codes: B64D 11/06395 characterised by the arrangement of electric motors for adjustment
• CPC Class Codes: B64D 11/064 Adjustable inclination or position of seats

Abstract

A rotational brake assembly comprises: a swivel disc having an outer diameter and a plurality of locking holes proximate the outer diameter; a cam having an angled slot; a lifting pin located within the angled slot of the cam; and a rotational brake pin operably connected to the lifting pin. The cam in operation moves to at least one of a locked position and an unlocked position based on an input. The lifting pin in operation moves along the angled slot when the cam moves. The rotational brake pin in operation moves due to motion of the cam. The rotational brake pin in operation moves from an engaged position with the swivel disc to a disengaged position, when the cam moves from the locked to the unlocked position. The rotational brake pin in operation moves to the engaged position, when the cam moves to the locked position.

Claims

1. A rotational brake assembly of a seat locking mechanism, the rotational brake comprising:

a swivel disc having an outer diameter and a plurality of locking holes proximate the outer diameter;

a cam having an angled slot, the cam in operation moves to at least one of a locked position and an unlocked position based on an input;

a lifting pin located within the angled slot of the cam, wherein the lifting pin in operation moves along the angled slot when the cam moves; and

a rotational brake pin operably connected to the lifting pin, the rotational brake pin in operation moves due to motion of the cam,

wherein the rotational brake pin in operation moves from an engaged position with the swivel disc to a disengaged position with the swivel disc, when the cam moves from the locked to the unlocked position,

wherein the rotational brake pin in operation moves from the disengaged position with the swivel disc to the engaged position with the swivel disc, when the cam moves from the unlocked to the locked position.

2. The rotational brake assembly of claim 1, wherein:

the cam in operation moves to the locked position when the cam moves radially outward towards the outer diameter of the swivel disc; and

the locked position is radially outward from unlocked position.

3. The rotational brake assembly of claim 1, wherein:

the cam in operation moves to the locked position when the cam moves radially inward away from the outer diameter of the swivel disc; and

the locked position is radially inward from unlocked position.

4. The rotational brake assembly of claim 1, further comprising:

a biasing mechanism operably connected to the rotational brake pin, the biasing mechanism in operation moves the rotational brake pin to the engaged position.

5. A seat locking mechanism comprising:

a control mechanism, the control mechanism in operation controls at least one of unlocking the seat locking mechanism when the control mechanism is activated and locking the seat locking mechanism when the control mechanism is deactivated; and

a plurality of positional brake mechanisms operably connected to the control mechanism, the plurality of positional brake mechanisms include a rotational brake assembly, a longitudinal brake assembly, and a lateral brake assembly, the rotational brake assembly comprising;

a swivel disc having an outer diameter and a plurality of locking holes proximate the outer diameter;

a cam having an angled slot, the cam in operation moves to at least one of a locked position and an unlocked position based on an input;

a lifting pin located within the angled slot of the cam, wherein the lifting pin in operation moves along the angled slot when the cam moves; and

a rotational brake pin operably connected to the lifting pin, the rotational brake pin in operation moves due to motion of the cam;

wherein the rotational brake pin in operation moves from an engaged position with the swivel disc to a disengaged position with the swivel disc, when the cam moves from the locked to an unlocked position,

wherein the rotational brake pin in operation moves from the disengaged position with the swivel disc to the engaged position with the swivel disc, when the cam moves from the unlocked to the locked position.

6. The seat locking mechanism of claim 5, wherein:

the cam in operation moves to the locked position when the cam moves radially outward towards the outer diameter of the swivel disc; and

the locked position is radially outward from unlocked position.

7. The seat locking mechanism of claim 5, wherein:

the cam in operation moves to the locked position when the cam moves radially inward away from the outer diameter of the swivel disc; and

the locked position is radially inward from unlocked position.

8. The seat locking mechanism of claim 5, further comprising:

a biasing mechanism operably connected to the rotational brake pin, the biasing mechanism in operation moves the rotational brake pin to the engaged position when the control mechanism is deactivated.

9. The seat locking mechanism of claim 5, wherein:

the control mechanism is an electric motor assembly operably connected to the rotational brake pin, the electric motor assembly in operation moves the rotational brake pin to at least one of the engaged position and the disengaged position.

10. The seat locking mechanism of claim 9, wherein:

the rotational brake pin is operably connected to the electric motor assembly through a carriage assembly, the rotational brake pin in operation moves to at least one of the engaged position and the disengaged position, when the electric motor assembly rotates the carriage assembly.

11. The rotational brake assembly of claim 5, wherein:

the control mechanism is an override bypass assembly operably connected to the rotational brake pin, the override bypass assembly in operation moves the rotational brake pin to at least one of the engaged position and the disengaged position.

12. The seat locking mechanism of claim 11, wherein:

the rotational brake pin is operably connected to the override bypass assembly through a carriage assembly, the rotational brake pin in operation moves to at least one of the engaged position and the disengaged position, when the override bypass assembly rotates the carriage assembly.

13. A method of assembling a seat locking mechanism comprising:

installing a control mechanism onto a structural support of the seat locking mechanism, the control mechanism in operation controls at least one of unlocking the seat locking mechanism when the control mechanism is activated and locking the seat locking mechanism when the control mechanism is deactivated;

installing a plurality of positional brake mechanisms onto the structural support; and

operably connecting the control mechanism to the plurality of positional brake mechanisms, the plurality of positional brake mechanisms include a rotational brake assembly, a longitudinal brake assembly, and a lateral brake assembly, the rotational brake assembly comprising;

a swivel disc having an outer diameter and a plurality of locking holes proximate the outer diameter;

a cam having an angled slot, the cam in operation moves to at least one of a locked position and an unlocked position based on an input;

a lifting pin located within the angled slot of the cam, wherein the lifting pin in operation moves along the angled slot when the cam moves; and

a rotational brake pin operably connected to the lifting pin, the rotational brake pin in operation moves due to motion of the cam,

wherein the rotational brake pin in operation moves from an engaged position with the swivel disc to a disengaged position with the swivel disc, when the cam moves from the locked to an unlocked position,

wherein the rotational brake pin in operation moves from the disengaged position with the swivel disc to the engaged position with the swivel disc, when the cam moves from the unlocked to the locked position.

14. The method of claim 13, wherein:

the cam in operation moves to the locked position when the cam moves radially outward towards the outer diameter of the swivel disc; and

the locked position is radially outward from unlocked position.

15. The method of claim 13, wherein:

the cam in operation moves to the locked position when the cam moves radially inward away from the outer diameter of the swivel disc; and

the locked position is radially inward from unlocked position.

16. The method of claim 13, further comprising:

operably connecting a biasing mechanism to the rotational brake pin, the biasing mechanism in operation moves the rotational brake pin to the engaged position when the control mechanism is deactivated.

17. The method of claim 13, wherein:

the control mechanism is an electric motor assembly operably connected to the rotational brake pin, the electric motor assembly in operation moves the rotational brake pin to at least one of the engaged position and the disengaged position.

18. The method of claim 17, wherein:

the rotational brake pin is operably connected to the electric motor assembly through a carriage assembly, the rotational brake pin in operation moves to at least one of the engaged position and the disengaged position, when the electric motor assembly rotates the carriage assembly.

19. The method of claim 13, wherein:

the control mechanism is an override bypass assembly operably connected to the rotational brake pin, the override bypass assembly in operation moves the rotational brake pin to at least one of the engaged position and the disengaged position.

20. The method of claim 19, wherein:

the rotational brake pin is operably connected to the override bypass assembly through a carriage assembly, the rotational brake pin in operation moves to at least one of the engaged position and the disengaged position when the override bypass assembly rotates the carriage assembly.