Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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MARKING SYSTEM & METHOD FOR USE IN CONCRETE
ANCHORS
FIELD
The invention relates to anchors and, more specifically, to marking systems to
assist in
the setting of such concrete anchors.
BRIEF DESCRIPTON OF DRAWINGS
The following figures serve to illustrate various embodiments of features of
the
disclosure. These figures are illustrative and are not intended to be
limiting.
Figure 1 is a partial cross-sectional view of a marking system for use in
concrete anchors
in a bore hole according to an embodiment of the present disclosure;
Figure 1A is the first stage of the anchor setting process as shown in Figure
1 and
according to an embodiment of the present disclosure;
Figure 1B is the second stage of the anchor setting process as shown in Figure
1 and
according to an embodiment of the present disclosure;
Figure 1C is the third stage of the anchor setting process as shown in Figure
1 and
according to an embodiment of the present disclosure;
Figure 2A is a lower perspective view of an underside of a collar of the
setting tool
shown according to another embodiment of the present disclosure; and,
Figure 2B lower perspective view of an underside of a collar of the setting
tool shown
according to yet another embodiment of the present disclosure.
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DETAILED DESCRIPTION
The following embodiments are merely illustrative and are not intended to be
limiting. It
will be appreciated that various modifications and/or alterations to the
embodiments
described herein may be made without departing from the disclosure and any
modifications and/or alterations are within the scope of the contemplated
disclosure.
With reference to Figure 1 and according to an embodiment of the present
disclosure, a
marking system 5 for use in drop-in anchors is shown, having an anchor 10
positioned in
a pre-drilled bore hole 15 typically found in cementitious materials 17. The
marking
system 5 is generally comprised of an anchor 10 further comprised of a hollow
shell 20,
which is terminated in spreading lamellae 25 which serve to spread outwardly
and secure
the anchor in the bore hole 15. A bullet 35 is positioned within hollow shell
20 of the
anchor 10 to set said anchor 10 by spreading the lamellae 25 outwardly during
setting. A
setting tool 50 is also provided to drive the bullet 35 downwardly, further
comprised a
collar 52, at least one pyramidally-shaped rib 54 positioned on a lower
surface of the
collar 52, and a tip 56 to contact the bullet 35. A worker skilled in the art
would
appreciate that two or more ribs 54 could be provided to increase the
likelihood that a
user of the marking system 5 would see the score mark (not shown) created on
the anchor
and further facilitate the setting of the anchor 10, or of a fastener or set
screw to
provide the same functionality. In this embodiment, the rib 54 could be
machined into the
collar 52 of the setting tool 50 but could also be brazed thereon and be
comprised of
carbide. In this particular embodiment, the upper surface 60 of the shell 20
is comprised
of an abradable coating, which is abraded when the upper surface 60 of the
anchor 10 and
the collar 52 of the setting tool 50 repeatedly contact one another when
driving the bullet
35 downwardly to set the anchor 10. A worker skilled in the art would also
appreciate
that the rib 54 could be constructed of carbide and soldered thereon, or the
rib 54 would
be machined together with the setting tool 50 as one piece. During operation,
when the
collar 52 and the rib 54 of the setting tool 50 contact an upper surface 60 of
the anchor
10, the rib 54 will dent the upper surface 60 and create a score mark (not
shown) thereon,
acting as a first visual indicator that the anchor 10 has been set. As was
explained above,
the abradable coating on the upper surface 60 of the anchor 10 will also
become abraded,
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which will serve as a second visual indicator that the anchor 10 has been set.
The
operation of the marking system 5 is further described below. A worker skilled
in the art
would appreciate that in one embodiment, the abradable coating could be paint.
With reference to Figures 1A, 1B and 1C and according to an embodiment of the
present
disclosure, the marking system 5 is shown in three stages of setting the
anchor 10. The
first stage specifically shown in Figure 1A shows the alignment between the
tip 56 of the
setting tool 50 and an opening 61 of the anchor 10. Meanwhile, the collar 52
and rib 54
positioned on the collar 52 of the setting tool 50 are aligned with the upper
surface 60 of
the anchor 10. With specific reference to Figure 1B and according to a second
stage of
setting the anchor 10, the collar 52 is flush with the upper surface 60 of the
anchor 10,
and the rib 54 has created a score mark (not shown) on the upper surface 60.
With
specific reference to Figure 1C and according to a third stage of setting the
anchor 10,
score mark 65 is shown having been created on the upper surface 60 of the
anchor 10.
The score mark 65 is obviously aligned with the rib 54. A worker skilled in
the art of
such anchors would appreciate that the three stages must be done sequentially
in order for
the anchor 10 to set properly, and for the score mark 65 to be most visible to
an installer
of the anchor 10. A worker skilled in the art would also appreciate that in
the case of a
manual installation without a drill, a hand setting tool could be used and
would require a
worker to strike the anchor a few less times and still provide the advantages
as described
above.
With further reference to Figures 1, 1A, 1B and 1C, in order to set the anchor
10, the
steps are: positioning the anchor shell 20 further comprised of an abradable
upper surface
60 and a bullet 35 within a bore hole 15, striking the anchor 10 and bullet 35
with a
setting tool 50 further comprised of a rib 54, wherein the striking of the
anchor 10 will
create a score mark 65 on the upper surface 60 of the anchor 10 to provide
visual
confirmation that the anchor 10 has been set.
With reference to Figures 2A and 2B and according to another embodiment of the
present
disclosure, either one rib 54 or two ribs 54 are shown, positioned on an
underside 70 of
the collar 52. The underside 70 of the collar 52 is further comprised of a
stepped male
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portion 75, which serves to mate with an annular female recession (not shown)
of the
upper surface (not shown) of the anchor (not shown). During the downward
driving of the
anchor 10, the stepped make portion 75 mates with the annular female recession
(not
shown) while the rib 54 contacts and creates a score mark (not shown) on the
upper
surface (not shown) of the anchor (not shown). A worker skilled in the art
would
appreciate that this male-female relationship is known in the art, although in
this
embodiment the upper surface (not shown) of the anchor (not shown) including
the
annular female recession (not shown) are comprised of an abradable coating as
detailed
above.
A worker skilled in the art would also appreciate that in another embodiment
of the
present disclosure, the entire anchor 10 comprised of the bullet 35 therein
could be
dipped, submerged or coated in a lubricating substance, or just the bullet 35
alone.
Preferably, the lubricating substance is molybdenum disulfide or graphite
which are dry
lubricants ideal for this purpose, or another similar lubricant known in the
art. In another
embodiment, the lubricating substance could be paste such as grease in order
to save on
costs while still providing the advantage of an easier setting of the anchor
10 by the bullet
35 sliding downwardly therein. In yet another embodiment of the present
disclosure, a
worker skilled in the art would appreciate that a lubricating member (not
shown) could be
positioned within the anchor shell 20, above or below the bullet 35. In such
an
embodiment, downwardly driving of the bullet 35 would engender a corresponding
compression of the lubricating member (not shown) which would lubricate the
bullet 35
and the inside of the anchor 10 to facilitate the setting of the anchor 10.
Many modifications of the embodiments described herein as well as other
embodiments
may be evident to a person skilled in the art having the benefit of the
teachings presented
in the foregoing description and associated drawings. It is understood that
these
modifications and additional embodiments are captured within the scope of the
contemplated invention which is not to be limited to the specific embodiment
disclosed.
