STEEL STUD ANCHOR

• US 20150247519A1
• Filed: 02/26/2015
• Published: 09/03/2015
• Est. Priority Date: 03/01/2014
• Status: Active Grant

• Current Assignee: Franklin Jiri Call, Mark Robbeson
• Original Assignee: Franklin Jiri Call, Mark Robbeson
• Inventors: CALL, Franklin Jiri, Robbeson, Mark
• Granted Patent: US 9,593,705 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E04B 2/58 with elongated members of metal
• CPC Class Codes: E04F 13/0832 without load-supporting elongated furring elements between wall and covering elements
• CPC Class Codes: F16B 21/00 Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it riveted or deformable spigots F16B19/04; for gudgeon pins F16J1/18; Stud-and-socket releasable fastenings
• CPC Class Codes: F16B 23/0007 characterised by the shape of the recess or the protrusion engaging the tool F16B23/0069 and F16B23/0076 take precedence
• CPC Class Codes: F16B 25/00 Screws that cut thread in the body into which they are screwed, e.g. wood screws F16B35/065 takes precedence; joining sheets or plates using screws with two separate threads F16B5/0275, using screws with adjustment sleeves F16B5/0283
• CPC Class Codes: F16B 25/0021 the material being metal, e.g. sheet-metal or aluminium F16B25/0031 takes precedence
• CPC Class Codes: F16B 25/0031 the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
• CPC Class Codes: F16B 25/0042 characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
• CPC Class Codes: F16B 25/0057 the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
• CPC Class Codes: F16B 25/0073 characterised by its pitch, e.g. a varying pitch
• CPC Class Codes: F16B 25/0078 with a shaft of non-circular cross-section or other special geometric features of the shaft
• CPC Class Codes: F16B 25/10 Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
• CPC Class Codes: F16B 25/103 by means of a drilling screw-point, i.e. with a cutting and material removing action
• CPC Class Codes: Y10T 29/49963 Threaded fastener

Abstract

A metal anchoring fastener fastens millwork onto walls constructed with wall cladding fastened to steel studs. The load typical of a loaded cabinet is borne by the steel stud anchors owing to the mate between the profile of the steel stud anchor and the layers of millwork and wall cladding and steel stud that said anchor penetrates. The pitch of the thread adorning the profile of the steel stud anchor progresses non-linearly along the length of said shaft, the shaft is generally non-linear in profile, and the thread profile is non-uniform along the length of said shaft. The anchor can also support a secondary screw concentrically penetrating the void at the center of the anchor, in order to hang loads from a wall, with or without millwork. Predrilling of the holes can enable installation of these zinc anchors.

Claims

1. A metal steel stud anchor for use with a steel stud comprising a head, a shaft and a pointed tip:

wherein the shaft is conically shaped and extends from the head to the pointed tip, with the shaft having a top grooved zone adjacent to the head and a threaded portion adjacent to the grooved zone and extending to the pointed tip, wherein the shaft diameter has a non-linear progression along the length of the shaft, and wherein the threads extend in a non-linear pitch around the length of the shaft in a linear progression and wherein the head has a central void including a screw drive, wherein the central void extends into the shaft.

2. The anchor of claim 1 wherein a pitch and a radius of the thread is defined by Formula I and Formula II.

3. The anchor of claim 1, wherein the anchor is fit with a press fit finishing cap.

4. The anchor of claim 1, wherein the steel stud anchor is made of a zinc alloy.

5. The anchor of claim 4, wherein the zinc is pre-hardened by the losso hardening process.

6. The anchor of claim 1, wherein the shaft includes a blade for clearing away debris from the hole created by the pointed tip.

7. The anchor of claim 1, wherein the diameter of the shaft directly below the head is about ⅜

″

in diameter.

8. The anchor of claim 1, wherein the diameter of the head is about 21/32″

.

9. The anchor of claim 1, wherein the maximum thread height occurs adjacent to the top grooved zone and the maximum thread height is about 3/16″

.

10. The anchor of claim 1, wherein the thread is about ⅛

″

thick at the location of its maximum thread height.

11. The anchor of claim 1, wherein the minimum thread height occurs adjacent to the pointed tip of the anchor and is about 1/16″

.

12. The anchor of the claim 1, wherein the thread is about 1/16″

thick at the location of its minimum thread height.

13. The anchor of claim 1, wherein the overall length of the anchor is approximately 3.5″

.

14. The anchor of claim 1, wherein the height of the head of the anchor is about ⅛

″

.

15. The anchor of claim 1, having a top grooved zone extending about ½

″ and

a length of the threaded portion of the shaft of about 2.75″

long and a length of the pointed tip of about ⅛

″

long.

16. The anchor of claim 1, wherein the anchor is approximately 3.5″

long, the top grooved zone is about ⅛

″

long, the threaded portion of the shaft is about ⅝

″

to about 3.375″

long, and the pointed tip is from about 3.375″

to about 3.5″

long.

17. The anchor of claim 6, wherein the blade is a small sharp flange that sits just adjacent and slightly recessed up the shaft from the piercing tip.

18. An anchor of claim 1, wherein the shaft includes a blade which is rectangular in shape and is located generally perpendicular to the axis of the shaft and is further located on the thread adjacent to the pointed tip.

19. An anchoring metal fastener comprising a fastener head and a shaft:

a fastener head equipped with tightening features around a central void.

a threaded, generally conical shaft with curved sides in cross-section that meet at a tip.

a linear progression in thread pitch along the length of the shaft.

a thread profile that changes with position along the thread.

a non-linear progression of shaft diameter along the length of the shaft.

a piercing point at the distal end of the generally conical shaft.

20. The anchoring metal fastener of claim 19, wherein the fastener is concentrically penetrated by a generally conical cavity partly extruding into the shaft from the head of the fastener and wherein a secondary screw can be threaded into said cavity.