Snap nut concrete anchor assembly

Patent metadata

Field	Value
Publication number	US-11655846-B2
Application number	US-202117147024-A
Country	US
Kind code	B2
Filing date	Jan 12, 2021
Priority date	Apr 13, 2017
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

The present disclosure describes an anchor device for receiving and securing a shaft thereto. The device includes an outer housing within which a jaw assembly is secured. The outer housing of the device may in turn be secured to or within a support structure such as a building component. Jaw components of the jaw assembly may be threaded. Furthermore, the jaw assembly has at least two configurations. In a first configuration, at least one jaw component is positioned away from a central shaft axis against the biasing force of a biasing member. A removable or reconfigurable holding member or stop member selectively secures the at least one jaw component in its position. In as second configuration, the holding member is reconfigured by the inserted shaft to trigger movement of the at least one jaw component toward the central shaft axis and into contact with the shaft.

First claim

The invention claimed is:

1. A support member of an anchor assembly, the support member for receiving and securing a threaded shaft thereto, the support member comprising:
an outer housing, the outer housing being defined by a longitudinal axis (A-A), the outer housing including a wall, the outer housing also including a connector opening at a first end thereof for receiving the threaded shaft, the housing wall including an inner surface defining a bore space,
a bore assembly disposed in the bore space, the bore assembly including at least two female threaded bore portions the threads of which selectively engage threads of the shaft, the bore assembly further including a flexible bias member for generating a biasing force to bias the at least one female thread bore portion toward the longitudinal axis (A-A),
a first of the at least two female thread bores including a projection extending therefrom and toward a second of the at least two female thread bores, the second of the at least two female thread bores including a track, the projection slidingly engaging the track to promote alignment between the first and second of the at least two female thread bores as the first and second of the at least two female thread bores move toward and away from the longitudinal axis (A-A), wherein
the projection is tapered away from the first of the at least two female threaded bores and the track of the second of the at least two female threaded bores is complementarily tapered to promote compliance between the projection and the track.

2. The support member of claim 1 , wherein the first of the two female thread bores includes at least one first projection and at least one first track and the second of the at least two female thread bores includes at least one second projection and at least one second track.

3. The support member of claim 2 , wherein the first projection is slidingly received in the second track and the second projection is received in the first track.

4. The support member of claim 1 , wherein the at least two female threaded bores include an outer surface and the projection and track are within the outer surface.

5. The support member of claim 1 , wherein the at least two female threaded bores include an outer surface and the projection and track are along the outer surface.

6. The support member of claim 1 , wherein the projection includes an upper engagement surface and a lower engagement surface for slidingly engaging respectively with upper and lower engagement surfaces of the track.

7. The support member of claim 1 , wherein biasing is toward the central axis A-A is due to a biasing against a tapered conical surface.

8. The support member of claim 1 , wherein the projection includes a radially inner surface for slidingly engaging a radially outer surface of the track.

9. The support member of claim 1 , wherein multiple projections project from the first of the two threaded female bores and multiple tracks of the second of the two threaded female bores receive the projections.

10. The support member of claim 1 , wherein the at least two threaded female bores become more aligned as the tapered projection and the complementarily tapered track translate toward the central axis A-A.

11. The support member of claim 1 , wherein the projection and the track slidingly engage toward central axis A-A to align the at least two threaded female bores with a threaded rod along central axis A-A.

12. The support member of claim 1 , wherein the at least two threaded female bores include grooves for receiving the bias member.

13. The support member of claim 1 , wherein at least one of the at least two female threaded bore portions is biased toward the central axis A-A due to a biasing of the threaded bore portion between the flexible bias member and a tapered conical surface.

14. The support member of claim 1 , wherein the outer housing further includes an assembly opening at a second end opposite the first end thereof to facilitate assembly of the bore assembly into the bore space.

Assignees

• Black & Decker Inc

Inventors

• Droste Manfred
• Schramm Benjamin

Classifications

• F16B39/36 Primary

  with conical locking parts, which may be split, including use of separate rings co-operating therewith · CPC title

• E04B1/4121

  with internal threads or non-adjustable captive nuts · CPC title

• F16B37/0857 Primary

  with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members (F16B37/0821 and F16B37/0835 take precedence) · CPC title

• F16B31/02

  for indicating {the attainment of a particular tensile load} or limiting tensile load {(apparatus for, or method of, determining value of torque or twisting moment for tightening a nut or other member similarly stressed G01L5/24)} · CPC title

• E04B1/4128

  receiving adjustable or removal nuts · CPC title