Self aligning panel fastener

• US 6,715,185 B2
• Filed: 07/25/2002
• Issued: 04/06/2004
• Est. Priority Date: 07/25/2002
• Status: Active Grant

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Angellotti, Roger A.
• Primary Examiner(s): SANDY, ROBERT JOHN
• Application Number:
  US10/202,700
• Publication Number:
  US 20040016088A1
• Time in Patent Office: 621 Days
• Field of Search: 242/97, 244/58, 411/508, 411/509, 411/510, 411/913, 248/231.9, 403/408.1
• US Class Current: 24/297
• CPC Class Codes: F16B 5/065 the plates being one on top of the other and distanced from each other, e.g. by using protrusions to keep contact and distance
• CPC Class Codes: F16B 5/0657 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 Class Codes: Y10T 24/30 Trim molding fastener
• CPC Class Codes: Y10T 24/309 Plastic type
• CPC Class Codes: Y10T 24/44026 for cooperating with aperture in supporting structure or structure-to-be-secured

Abstract

A panel fastener forming a blind connection between a primary and secondary panel is herein disclosed. The panel fastener is constructed and arranged to be preassembled with an attachment structure extending from an undersurface of the primary panel. The head of the panel fastener has an alignment detent or detent extending therefrom that engages the attachment structure of the primary panel so as to maintain the panel fastener in a predetermined orientation therewith. The panel fastener has a shank with a retaining mechanism constructed and arranged to be received and retained in a bore formed through a secondary panel.

Claims

1. An assembly for securing a primary panel to a secondary panel comprising:

a doghouse; and

a panel fastener comprising

a head comprising an upper plate and a lower plate, the upper and lower plates being connected and maintained apart from one another in a generally parallel relationship by a post that is constructed and arranged to be received and retained in a slot formed in a bottom surface of the doghouse that extends from an undersurface of the primary panel, the upper plate including a flexible portion;

a shank extending from the lower plate away from the upper plate, the shank having a retaining structure for retaining the shank of the panel fastener in a bore formed in the secondary panel where the shank of the panel fastener is inserted in the bore in the secondary panel; and

,

a detent that extends from an undersurface of the flexible portion of the upper plate in the direction of the lower plate of the head, such that the flexible portion of the upper plate is deflected upwardly away from the lower plate as the post is slidingly inserted into the slot of the doghouse in a first direction, and such that upon continued movement of the post in the first direction, the detent is constructed and arranged to engage the bottom surface of the doghouse when the post is received in the slot formed in the doghouse, the detent maintaining a predetermined alignment of the panel fastener with respect to the doghouse.

2. The panel fastener of claim 1 wherein the detent is self-centering with respect to a cooperating bore formed through the bottom surface of the dog house.

3. The panel fastener of claim 2 wherein the detent is self-centering with a bore having one of a circular or rectangular shape.

4. The panel fastener of claim 1 wherein the detent has a plurality of symmetrical outer faces that taper from a narrow tip to a broad base.

5. The panel fastener of claim 1 wherein the detent is formed in one of a pyramidal, conical, frustoconical, or hemispherical shape.

6. The panel fastener of claim 1 wherein the bottom surface of the dog house further has one of a depression and a bore formed therein that is constructed and arranged to engage the detent of the panel fastener when the panel fastener is received in the slot formed in the dog house.

7. The panel fastener of claim 1 wherein the bottom surface of the dog house further includes a bore positioned to engage the detent when the panel fastener is received in the slot formed in the dog house, the bore being formed symmetrically so as to cooperate with the detent in positioning the panel fastener with respect to the dog house.

8. A panel fastener for securing a primary panel to a secondary panel comprising:

a head comprising an upper plate and a lower plate, the upper and lower plates being connected and maintained apart from one another in a generally parallel relationship by a post that is constructed and arranged to be received and retained in a slot formed in a bottom surface of a doghouse that extends from an undersurface of the primary panel;

a shank extending from the lower plate away from the upper plate, the shank having a retaining structure for retaining the shank of the panel fastener in a bore formed in the secondary panel where the shank of the panel fastener is inserted in the bore in the secondary panel; and

,

a detent that extends from an undersurface of the upper plate in the direction of the lower plate of the head, the detent being constructed and arranged to engage the bottom surface of the doghouse when the post is received in the slot formed in the doghouse, the detent maintaining a predetermined alignment of the panel fastener with respect to the doghouse, wherein the detent has a plurality of symmetrical outer faces that taper from a narrow tip to a broad base.

9. The panel fastener of claim 8 wherein the detent is self-centering with respect to a cooperating bore formed through the bottom surface of the dog house.

10. The panel fastener of claim 9 wherein the detent is self-centering with a bore having one of a circular or rectangular shape.

11. The panel fastener of claim 8 wherein the bottom surface of the dog house further has one of a depression and a bore formed therein that is constructed and arranged to engage the detent of the panel fastener when the panel fastener is received in the slot formed in the dog house.

12. The panel fastener of claim 8 wherein the bottom surface of the dog house further includes a bore positioned to engage the detent when the panel fastener is received in the slot formed in the dog house, the bore being formed symmetrically so as to cooperate with the detent in positioning the panel fastener with respect to the dog house.

13. An assembly for securing a primary panel to a secondary panel, the assembly comprising:

a doghouse having peripheral side walls secured at their top edges to an undersurface of the primary panel, a bottom surface secured to lower edges of the peripheral side walls, an open end which provides access to an interior of the doghouse, a slot in the bottom surface, and a depression in the bottom surface that is separate and spaced from the slot;

a fastener having a head comprising an upper plate and a lower plate, the upper and lower plates being connected and maintained apart from one another in a generally parallel relationship by a post that is constructed and arranged to be received and retained in the slot formed in the bottom surface of the doghouse where the upper plate is adapted and configured to be received by the interior of the doghouse, a shank extending from the lower plate away from the upper plate, the shank having a retaining structure for retaining the shank of the fastener in a bore formed in the secondary panel where the shank of the panel fastener is inserted in the bore in the secondary panel, and a detent that extends from an undersurface of the upper plate in the direction of the lower plate of the head, the detent being constructed and arranged to engage the depression in the bottom surface of the doghouse when the post is received in the slot formed in the doghouse, the detent maintaining a predetermined alignment of the panel fastener with respect to the doghouse; and

wherein the upper plate of the fastener includes at least one rib constructed and arranged such that the upper plate forms a relatively tight sliding fit with the interior of the doghouse.

14. The assembly of claim 13 wherein the upper plate of the fastener includes a flexible portion, such that the flexible portion of the upper plate is deflected upwardly away from the lower plate as the post is inserted into the slot of the doghouse.

15. The assembly of claim 13 wherein the slot of the doghouse and the post of the fastener are constructed and arranged such that the slot engages the post in a snap-fit manner.

16. The assembly of claim 13 wherein the depression in the doghouse is an opening extending through the bottom surface of the doghouse, the detent has a plurality of symmetrical outer faces that taper from a narrow tip to a broad base, and the detent is self-centering with respect to the opening in the bottom surface of the doghouse.

17. The assembly of claim 13 wherein a base portion of the slot is sized slightly larger than an outer diameter of the post of the fastener.

18. The assembly of claim 13 wherein the bottom surface of the doghouse is interposed between the upper and lower plates of the fastener.

19. The assembly of claim 13 wherein the detent is self-centering with respect to the depression in the bottom surface of the doghouse.