Setting tool for a drop-in anchor

Patent metadata

Field	Value
Publication number	US-10780508-B2
Application number	US-201314442895-A
Country	US
Kind code	B2
Filing date	Nov 13, 2013
Priority date	Nov 19, 2012
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

The setting tool ( 1 ) has a first part ( 2 ) for driving in a drop-in anchor and a second part ( 3 ), placeable on the first part along an axis ( 8 ), for drilling a drill hole for the drop-in anchor. The first part ( 2 ) has an insertion end ( 5 ) for a percussive portable power tool, a plunger ( 6 ) having an impact surface ( 12 ) and a piece ( 16 ) of a rotary coupling. The second part ( 3 ) has a slip-on sleeve ( 20 ), which coaxially surrounds the plunger ( 6 ) and bears against the impact surface ( 12 ) of the plunger ( 6 ), a counterpart ( 33 ) for the rotary coupling and a drill bit ( 23 ) permanently connected to the slip-on sleeve ( 20 ).

First claim

What is claimed is:

1. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the first part and the second part come into contact along the axis only at the impact surface of the plunger.

2. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the first part contacts the second part via the impact surface situated on the axis, and surfaces of the first part situated radially outside of the impact surface are separated from the second part by a gap along the axis.

3. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the slip-on sleeve forms a collar protruding radially beyond the drill bit and delimiting a depth of the borehole.

4. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the first part has a base connecting the shank and the plunger, the base protruding radially beyond the plunger with an end face facing in an impact direction to delimit a setting depth.

5. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the rotary coupling part includes at least one key surface, and the counterpart includes at least one complementary key surface to the at least one key surface.

6. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the shank has at least one elongated groove running along the axis, the at least one groove being closed in an impact direction and against the impact direction.

7. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the first part has a base having a same outside diameter as the slip-on sleeve and the setting tool further comprising a cylindrical sleeve made of an elastic plastic put over the first part and the second part.

8. A setting tool comprising:
a first part for driving a drop-in anchor; and
a second part placeable on the first part along an axis for drilling a borehole for the drop-in anchor,
the first part having a shank for a percussive portable power tool, a plunger including an impact surface, and a rotary coupling part, and
the second part having a slip-on sleeve, the slip-on sleeve surrounding the plunger coaxially and contacting the impact surface of the plunger, a counterpart to the rotary coupling part and a drill bit permanently connected to the slip-on sleeve;
wherein the second part is pullable away from the first part to release the second part from the first part, the first part thereby being usable for driving the drop-in anchor.

Assignees

• Hilti Ag

Inventors

• Foser Roland

Classifications

• B25B21/007

  Attachments for drilling apparatus for screw or nut setting or loosening · CPC title

• B25D17/02

  Percussive tool bits {(drill bits for earth drilling E21B10/00)} · CPC title

• B25B31/00

  Hand tools for applying fasteners (nailing or stapling tools B25C) · CPC title

• B25D17/005

  Attachments or adapters placed between tool and hammer · CPC title

• B25D2250/051

  Couplings, e.g. special connections between components · CPC title