Quick-threaded rod locking device and method

Patent metadata

Field	Value
Publication number	US-11047409-B2
Application number	US-202016806596-A
Country	US
Kind code	B2
Filing date	Mar 2, 2020
Priority date	Oct 30, 2008
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

A device for securing threaded rod relative to concrete and metal decking is provided. The device can include a housing with a securement portion and a flange, at least two plunger pieces that can be disposed within the securement portion, a first biasing member that can be arranged within the securement portion to urge the plunger pieces into engagement with the threaded rod, a bracket that can be disposed around a portion of the housing to provide rigid positioning of the housing to secure the housing perpendicular to the metal decking when concrete is poured over the metal decking, and a second biasing member that can be disposed around a portion of the housing to bias the flange away from the metal decking.

First claim

The invention claimed is:

1. A device for securing a threaded rod relative to concrete and metal decking, with the device being configured to be installed using a hammer, the device comprising:
a housing configured to be embedded in the concrete and slidably receive the threaded rod, the housing including a securement portion and a flange extending outwardly relative to the securement portion, the flange being configured to secure the housing within the concrete;
at least two plunger pieces disposed within the securement portion;
a first biasing member arranged within the securement portion to urge the plunger pieces into engagement with the threaded rod;
a bracket disposed around a portion of the housing, the bracket configured to be secured to the metal decking and provide rigid positioning of the housing to secure the housing perpendicular to the metal decking when concrete is poured over the metal decking; and
a second biasing member disposed around a portion of the housing to bias the flange away from the metal decking.

2. The device of claim 1 , further comprising:
a deck holder with a hole, the deck holder configured to extend thorough the metal decking;
wherein the housing is at least partially received within the hole of the deck holder and is configured to receive the threaded rod via the hole of the deck holder.

3. The device of claim 2 , wherein the deck holder has flanges configured to retain the deck holder within the metal decking.

4. The device of claim 3 , wherein the flanges of the deck holder are disposed opposite the bracket from the flange of the housing.

5. The device of claim 1 , wherein the securement portion of the housing includes a ribbed end that engages with a rib on an inside surface of the deck holder to secure the housing within the deck holder.

6. The device of claim 1 , wherein the securement portion includes a cylindrical profile with flattened portions; and
wherein an opening in the bracket through which the securement portion extends includes flattened portions that engage the flattened portions of the securement portion.

7. The device of claim 1 , wherein a first end of the second biasing member is seated on the bracket and a second end of the second biasing member is seated on the flange, to bias the flange away from the bracket when a hammer strike during installation drives the flange towards the metal decking.

8. The device of claim 1 , further comprising a backplate arranged to close the housing to retain the plunger pieces and the first biasing member therein and to seal the housing to the concrete.

9. The device of claim 8 , wherein the backplate threadedly engages with the housing.

10. A device for securing a threaded rod relative to concrete that is set using a setting structure, the device comprising:
a housing configured to be embedded in the concrete, the housing including a securement portion and a flange that extends outwardly relative to the securement portion, the flange being configured to secure the housing within the concrete;
a deck holder with a hole and a plurality of flanges around the hole at a first end of the deck holder, the securement portion of the housing being at least partially retained within the hole and the plurality of flanges being configured to engage the setting structure with the deck holder extending through a hole in the setting structure;
a set of plunger pieces disposed within the securement portion; and
a biasing member disposed within the housing to urge the plunger pieces to engage the threaded rod when the threaded rod extends through the hole of the deck holder into the housing.

11. The device of claim 10 , further comprising:
a bracket slidably secured to the housing, the bracket configured to seat against and be secured to the setting structure to support the housing in a perpendicular orientation relative to the setting structure when concrete is poured over the setting structure.

12. The device of claim 11 , further comprising:
a second biasing member disposed between the bracket and the housing to bias the housing away from the bracket when the housing is moved towards the bracket.

13. The device of claim 12 , wherein the second biasing member is configured to bias the housing away from the bracket as the housing is driven into the deck holder by a hammer blow.

14. The device of claim 11 , wherein the securement portion includes a cylindrical profile with flattened portions; and
wherein an opening in the bracket through which the securement portion extends includes flattened portions that engage the flattened portions of the securement portion.

15. The device of claim 10 , wherein the housing includes a ribbed portion.

16. The device of claim 15 , wherein the deckholder has a ribbed portion inside the hole and the ribbed portion of the housing is secured within the ribbed portion of the deckholder.

17. The device of claim 10 , wherein the housing has a hexagonal head on a side of the flange opposite the securement portion.

18. The device of claim 17 , wherein the backplate is received within the hexagonal head.

19. A method of securing a threaded rod relative to concrete, the method comprising:
seating a deck holder of a securement device through a first hole in a setting structure, the deck holder including a second hole and a plurality of flanges around the second hole at a first end of the deck holder, the securement device including a housing secured to the deck holder and a bracket slidably secured to the housing, and the housing being configured to be embedded in the concrete and including a securement portion that is at least partially retained within the second hole, a flange that extends outwardly relative to the securement portion and is configured to secure the housing within the concrete, a rod opening disposed within the deck holder, a set of plunger pieces disposed within the securement portion that are biased towards the rod opening by a first biasing member disposed within the housing to urge the plunger pieces to engage the threaded rod when the threaded rod extends through the second hole into the housing, and a backplate to secure the plunger pieces within the housing;
striking the housing to secure the deck holder to the setting structure with the deck holder extending through the first hole in the setting structure and the plurality of flanges engaging the setting structure;
pouring the concrete onto the setting structure to set around the bracket and the housing;
after the concrete is set, sliding the threaded rod through the deck holder into the rod opening so that the plunger pieces move away from the rod opening, against the bias towards the rod opening, to admit the threaded rod; and
after sliding the threaded rod into the securement portion of the housing, loading the threaded rod to urge the plunger pieces towards the rod opening to secure the threaded rod relative to the concrete.

20. The method of claim 19 , wherein during the striking of the housing, a second biasing member disposed between the bracket and the housing biases the housing away from the bracket.

Assignees

• Erico Int Corp

Inventors

• Oh Michael H -S

Classifications

• F16B2/065 Primary

  using screw-thread elements (F16B2/08 - F16B2/12 take precedence) · CPC title

• F16B37/045

  specially adapted for fastening in channels, e.g. sliding bolts, channel nuts · CPC title

• F16B39/10

  by a plate, {spring, wire} or ring immovable with regard to the bolt or object {and mainly perpendicular to the axis of the bolt}(F16B39/08 takes precedence) · CPC title

• F16B37/0864

  with the threaded portions of the nut engaging the thread of the bolt by pressing or rotating an external retaining member such as a cap, a nut, a ring or a sleeve (F16B37/0835 takes precedence) · CPC title

• F16B35/06

  Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 {; separate hook adaptors for bolts F16B43/025}) · CPC title