Detachable fastener assembly

Patent metadata

Field	Value
Publication number	US-11365754-B2
Application number	US-201916387862-A
Country	US
Kind code	B2
Filing date	Apr 18, 2019
Priority date	Apr 18, 2019
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

A fastener assembly includes a plunger, a grommet, and a lever arm. The plunger may include a head, a tip portion, and a longitudinal centerline axis. The grommet may be configured to receive the tip portion of the plunger. The tip portion of the plunger may be axially movable relative to the grommet between a latched state and an unlatched state. The lever arm may be coupled to the plunger between the head and the tip portion. The lever arm extends from the plunger at an angle relative to the longitudinal centerline axis, with the lever arm being actuatable to switch the fastener assembly from the latched state to the unlatched state, according to various embodiments.

First claim

What is claimed is:

1. A fastener assembly comprising:
a plunger comprising a head, a tip portion, and a longitudinal centerline axis;
a grommet configured to receive the tip portion of the plunger, wherein the tip portion of the plunger is axially movable relative to the grommet between a latched state and an unlatched state;
a lever arm coupled to the plunger between the head and the tip portion, wherein the lever arm extends from the plunger at an angle relative to the longitudinal centerline axis, wherein the lever arm is actuatable to switch the fastener assembly from the latched state to the unlatched state; and
a plate configured to be detachably mounted to a structure, wherein a wall of the plate defines a fastener well, wherein the wall of the plate defining the fastener well defines a cutout, wherein the lever arm extends through the cutout.

2. The fastener assembly of claim 1 , wherein:
the lever arm comprises a first end and a second end;
the second end is coupled to the plunger; and
the first end is disposed so as to be more accessible to a user than the head of the plunger.

3. The fastener assembly of claim 2 , wherein:
the grommet comprises a flange and a body portion;
the flange of the grommet is configured to engage the plate; and
the body portion of the grommet is configured to extend through respective apertures of the plate and the structure.

4. The fastener assembly of claim 3 , wherein:
in the latched state the tip portion of the plunger is in a first position relative to the grommet such that the body portion of the grommet is radially expanded and is thus configured to retain the fastener assembly relative to the structure;
in the unlatched state the tip portion of the plunger is in a second position relative to the grommet such that the body portion of the grommet is radially collapsed and is thus configured to release the fastener assembly relative to the structure; and
in the first position the tip portion of the plunger is farther inserted relative to the grommet than in the second position and, correspondingly, in the second position the tip portion of the plunger is farther retracted relative to the grommet than in the first position.

5. The fastener assembly of claim 3 , wherein the lever arm is coupled to the plunger between the flange of the grommet and the head of the plunger.

6. The fastener assembly of claim 3 , wherein the second end of the lever arm is pivotably coupled to the plunger.

7. The fastener assembly of claim 6 , wherein:
the lever arm comprises a mid-section extending between the first end and the second end;
the plate comprises a fulcrum; and
the mid-section of the lever arm is configured to directly engage the fulcrum of the plate in response to actuation of the lever arm switching the fastener assembly from the latched state to the unlatched state.

8. An assembly detachably mounted to an interior structure of an aircraft, the assembly comprising:
a plate defining an aperture;
a grommet extending through the aperture and through a corresponding aperture of the interior structure of the aircraft;
a plunger comprising a head, a tip portion, and a longitudinal centerline axis, wherein the tip portion of the plunger is axially movable relative to the grommet between a latched state and an unlatched state;
a lever arm pivotally coupled to the plunger, wherein in response to pivoting the lever arm the assembly transitions from the latched state to the unlatched state; and
a wall of the plate defining a fastener well, wherein the wall of the plate defining the fastener well defines a cutout, wherein the lever arm extends through the cutout.

9. The assembly of claim 8 , wherein:
the aperture of the plate is defined in a base of the fastener well;
the grommet comprises a flange and a body portion;
the flange is engaged against the base of the fastener well;
the tip portion of the plunger is axially movable within the body portion of the grommet;
the lever arm comprises a first end, a second end, and a mid-section extending between the first end and the second end;
the second end is pivotably coupled to the plunger between the head of the plunger and the flange of the grommet;
the wall of the plate defining the fastener well comprises a fulcrum;
the mid-section of the lever arm directly engages the fulcrum; and
in response to pivoting the lever arm about the fulcrum, the assembly transitions from the latched state to the unlatched state.

10. The assembly of claim 9 , further comprising a pouch coupled to the plate.

11. The assembly of claim 10 , wherein the pouch is detachably coupled to the plate.

12. The assembly of claim 10 , wherein the pouch comprises resiliently flexible material.

13. The assembly of claim 10 , wherein the pouch defines a hole through which a user may engage the first end of the lever arm to actuate the lever arm to transition the assembly from the latched state to the unlatched state.

14. The assembly of claim 10 , wherein the plate is an exclusive mounting interface between the pouch and the interior structure of the aircraft.

15. The assembly of claim 14 , wherein the plate comprises a plastic thermoformed material.

16. The assembly of claim 9 , wherein the mid-section of the lever arm comprises a shoulder configured to prevent removal of the lever arm relative to the cutout.

17. A method of manufacturing an assembly for mounting to a structure, the method comprising:
positioning a grommet into an aperture defined in a plate;
inserting a first end of a lever arm through a cutout defined in a wall of a fastener well of the plate;
inserting a tip portion of a plunger into the grommet; and
pivotably coupling a lever arm to the plunger between a head of the plunger and the grommet.

18. The method of claim 17 , wherein inserting the first end of the lever arm through the cutout defined in the wall of the fastener well of the plate is performed before inserting the tip portion of the plunger into the grommet.

Assignees

• Ami Ind Inc

Inventors

• Porter Ryan

Classifications

• F16B5/0657 Primary

  at least one of the plates providing a raised structure, e.g. of the doghouse type, for connection with the clamps or clips of the other plate · CPC title

• F16B5/0088

  with locking means moving substantially perpendicular to the main plane, e.g. pins, screws · CPC title

• F16B19/1081 Primary

  fastened by a drive-pin (F16B19/109 takes precedence) · CPC title

• Y10T403/75

  having a joining piece extending through aligned openings in plural members · CPC title

• F16B21/09

  Releasable fastening devices with a stud engaging a keyhole slot · CPC title