Device for nailing cast in place anchors

Patent metadata

Field	Value
Publication number	US-12427635-B2
Application number	US-202218559981-A
Country	US
Kind code	B2
Filing date	Apr 29, 2022
Priority date	May 10, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A device for nailing cast in place anchors includes a housing, which has an anchor receptacle for receiving a cast in place anchor, a nail gun abutment for abutting against a nail gun, and a ram, which extends into the housing towards the anchor receptacle and which is axially displaceable with respect to the housing. The ram has a striking surface facing the anchor receptacle for striking the cast in place anchor disposed in the anchor receptacle. The ram further has a striker abutment for abutting against a striker of the nail gun that is positioned at the nail gun abutment.

First claim

The invention claimed is:

1. A device ( 10 ) for nailing cast in place anchors ( 1 ), comprising:
a housing ( 19 ) which has an anchor receptacle ( 11 ) for receiving a cast in place anchor ( 1 );
a nail gun abutment ( 15 ) for abutting against a nail gun ( 50 );
a ram ( 20 ) which extends into the housing ( 19 ) towards the anchor receptacle ( 11 ) and which is axially displaceable with respect to the housing ( 19 ), wherein the ram ( 20 ) has a striking surface ( 23 ) facing the anchor receptacle ( 11 ) for striking a cast in place anchor ( 1 ) disposed in the anchor receptacle ( 11 ) and wherein the ram ( 20 ) has a striker abutment ( 25 ) for abutting against a striker ( 53 ) of the nail gun ( 50 ) that is positioned at the nail gun abutment ( 15 ); and
an unlocking pushrod ( 60 ) which is axially displaceable with respect to the housing ( 19 ) and with respect to the nail gun abutment ( 15 ), wherein the unlocking pushrod ( 60 ) has an anchor probe surface ( 61 ) located at the anchor receptacle ( 11 ) and a lock abutment ( 63 ) for abutting against a proximity plunger ( 59 ) of the nail gun ( 50 ).

2. The device ( 10 ) according to claim 1 , wherein the striking surface ( 23 ) is disposed at a proximal end ( 21 ) of the ram ( 20 ) and the striker abutment ( 25 ) is disposed at a distal end ( 22 ) of the ram ( 20 ) and wherein the proximal end ( 21 ) of the ram ( 20 ) and the distal end ( 22 ) of the ram ( 20 ), respectively, are opposite ends of the ram ( 20 ).

3. The device ( 10 ) according to a claim 1 , further comprising a ram return spring ( 17 ) which rests on the ram ( 20 ), wherein the ram return spring ( 17 ) biases the ram ( 20 ) axially away from the anchor receptacle ( 11 ).

4. The device ( 10 ) according to claim 1 , wherein the anchor probe surface ( 61 ) is disposed at a proximal end of the unlocking pushrod ( 60 ) and the lock abutment ( 63 ) is disposed at a distal end of the unlocking pushrod ( 60 ) and wherein the proximal end of the unlocking pushrod ( 60 ) and the distal end of the unlocking pushrod ( 60 ), respectively, are opposite ends of the unlocking pushrod ( 60 ).

5. The device ( 10 ) according to claim 1 , wherein the unlocking pushrod ( 60 ) has at least one anchor probe pin ( 62 ) which penetrates the striking surface ( 23 ) of the ram ( 20 ) and wherein the anchor probe surface ( 61 ) is arranged at the at least one anchor probe pin ( 62 ).

6. The device ( 10 ) according to claim 1 , wherein the unlocking pushrod ( 60 ) has at least one guide sleeve ( 65 , 67 ) and wherein the ram ( 20 ) is guidable by the at least one guide sleeve ( 65 , 67 ).

7. The device ( 10 ) according to claim 1 , further comprising a ram return spring ( 17 ) which rests on the ram ( 20 ), wherein the ram return spring ( 17 ) biases the ram ( 20 ) axially away from the anchor receptacle ( 11 ) and wherein the ram return spring ( 17 ) rests on the unlocking pushrod ( 60 ).

8. The device ( 10 ) according to claim 1 , wherein the nail gun abutment ( 15 ) is axially advanceable towards the housing ( 19 ).

9. The device ( 10 ) according to claim 1 , further comprising an abutment return spring ( 70 ), wherein the nail gun abutment ( 15 ) is pushable away from the housing ( 19 ) by the abutment return spring ( 70 ).

10. The device ( 10 ) according to claim 1 , wherein the ram ( 20 ) has a mass ranging from 100 g to 750 g.

11. The device ( 10 ) according to claim 1 , further comprising a feed tube ( 80 ) for feeding cast in place anchors ( 1 ) into the anchor receptacle ( 11 ), wherein the feed tube ( 80 ) is connected to the housing ( 19 ).

12. A device ( 10 ) for nailing cast in place anchors ( 1 ), comprising:
a housing ( 19 ) which has an anchor receptacle ( 11 ) for receiving a cast in place anchor ( 1 );
a nail gun abutment ( 15 ) for abutting against a nail gun ( 50 );
a ram ( 20 ) which extends into the housing ( 19 ) towards the anchor receptacle ( 11 ) and which is axially displaceable with respect to the housing ( 19 ), wherein the ram ( 20 ) has a striking surface ( 23 ) facing the anchor receptacle ( 11 ) for striking a cast in place anchor ( 1 ) disposed in the anchor receptacle ( 11 ) and wherein the ram ( 20 ) has a striker abutment ( 25 ) for abutting against a striker ( 53 ) of the nail gun ( 50 ) that is positioned at the nail gun abutment ( 15 );
a feed tube ( 80 ) for feeding cast in place anchors ( 1 ) into the anchor receptacle ( 11 ), wherein the feed tube ( 80 ) is connected to the housing ( 19 ); and
at least one guide ring ( 88 ) that is arranged at the nail gun abutment ( 15 ) for axially guiding the nail gun abutment ( 15 ) at the feed tube ( 80 ), wherein the feed tube ( 80 ) extends through the guide ring ( 88 ).

13. A system, comprising:
the device ( 10 ) according to claim 1 ; and
a nail gun ( 50 ) having a striker ( 53 ), wherein the nail gun ( 50 ) is positioned at the nail gun abutment ( 15 ) such that the striker ( 53 ) faces the striker abutment ( 25 ) of the ram ( 20 ).

14. The system according to claim 13 , wherein the device further comprises a ram return spring ( 17 ) which rests on the ram ( 20 ), wherein the ram return spring ( 17 ) biases the ram ( 20 ) axially away from the anchor receptacle ( 11 ), and wherein the ram return spring ( 17 ) pushes the ram ( 20 ) into contact with the striker ( 53 ).

15. The system according to claim 13 , wherein the striker ( 53 ) has a mass ranging from 50 g to 250 g.

16. The system according to claim 13 , wherein the nail gun ( 50 ) is configured to provide a setting energy of 50 Joules or more on the striker ( 53 ).

17. The system according to claim 13 , further comprising a cast in place anchor ( 1 ) which is positioned within the anchor receptacle ( 11 ).

18. The system according to claim 17 , wherein a distance between the striking surface ( 23 ) and the cast in place anchor ( 1 ) positioned within the anchor receptacle ( 11 ) ranges from 10 mm to 100 mm.

Assignees

• Hilti Ag

Inventors

• Spampatti Matteo
• Hassler Achim
• Ziltener Michael
• Schraner Jann

Classifications

• B25C1/188 Primary

  Arrangements at the forward end of the barrel, e.g. splinter guards, spall minimisers, safety arrangements, silencers, bolt retainers · CPC title

• B25C1/047 Primary

  Mechanical details · CPC title