Note: Descriptions are shown in the official language in which they were submitted.
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IMPROVED ADJUSTING SYSTEM FOR A MASONRY GUIDE
The present invention relates to a system for adjusting a masonry guide
relative to a brick wall to be laid, comprising a joint body configured to be
received
in a joint of the wall, and first masonry guide attaching means to be
connected to
the joint body and configured for attachment to the masonry guide.
Such a system is known from the international patent application
W02010/110656 of the same inventor.
The known system has diverse advantages. A significant advantage is that
the masonry guide is attached by a joint body in the joint so that damage to
the
bricks can be avoided and repairs to the brick-built wall can thereby be
limited to a
minimum. In general terms bricklaying can take place more quickly and with a
better
result using the known system.
The present invention has for its object to improve the known system still
further.
The system according to the invention has for this purpose the feature that
the joint body comprises two parts slidable into each other, wherein the parts
of the
joint body are connected releasably to each other in a position of use.
After completion of the bricklaying operations and removal of the masonry
guides the visible part of the joint body can be removed in simple manner by
breaking the connection and sliding the two parts into each other. This can
take
place manually, for instance using a hammer and a striking pin. Remaining
visible in
the joint is only a minimal opening, which can be easily filled.
It is noted that from NL2004502 a system according to the preamble of
claim 1 is known with a joint body with two parts slidable into each other. In
the
known system the two parts of the joint body are not mutually fixed in the
position of
use. The known joint body is moreover configured such that in the position of
use
one of the parts can be slid sufficiently far out of the joint to attach the
masonry
guide thereto. This can result in stability problems which can have adverse
consequences for the quality of the brickwork.
In a first preferred embodiment the joint body has in the position of use a
maximum dimension in sliding direction which is smaller than or equal to the
dimension of a brick in sliding direction. In practice this means that the
length of the
joint body will be smaller than or equal to the width of the brick. Because
the joint
body is pushed in to the rest position after use, the joint body can then be
wholly
received in the joint, even in the case of a half-brick wall.
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In a first practical preferred embodiment the parts of the joint body are
mutually connected by means of a breakable connection. A breakable connection
can be realized by means of a local weakening chosen such that it breaks
easily
under the influence of an impact force.
In a second practical preferred embodiment the parts of the joint body are
mutually connected by means of a snap connection. The snap connection can also
be chosen such that it breaks easily under the influence of an impact force.
In a further preferred embodiment the connection lies out of the centre of the
joint body. The first masonry guide attaching means can then be attached to
the
longer joint body part which can absorb more tensile force.
In an elegant embodiment the joint body comprises a first part which takes
an at least partially hollow form and a second part which is configured to be
at least
partially received in the first part, wherein the first and the second part
have a
corresponding form, preferably a tapering form. The corresponding form has to
be
releasable.
One of the parts is preferably provided on one outer end with one or more
positioning edges extending substantially transversely of the part for the
purpose of
an accurate placing on the brick.
The positioning edges are preferably connected breakably to the part so that
they break off simultaneously with the connecting line upon impact.
In another embodiment the first masonry guide attaching means are
configured for releasable attachment close to the underside of the masonry
guide.
The attachment close to the underside of the masonry guide corresponds to the
traditional manner of attaching masonry guides. Another significant advantage
is
that the masonry guide can be uncoupled, whereby cleaning and finishing are
also
easily possible at the corners. The combination of the two measures makes it
possible to lift the masonry guide out of the first masonry guide attaching
means
and displace it to further first masonry guide attaching means at a higher
position.
In a further development of this embodiment the first masonry guide
attaching means comprise a coupling support for attaching to the joint body
and a
base for attaching to the underside of the masonry guide, wherein the coupling
support and the base are provided with first co-acting coupling means.
According to yet another and very dimensionally stable development of this
preferred embodiment, the system according to the invention further comprises
a
ground element, wherein the ground element and the base are provided with
first
co-acting coupling means.
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According to a further preferred embodiment, the system comprises second
masonry guide attaching means for attaching the masonry guide to an inner leaf
of
a cavity wall.
According to a further preferred embodiment, the second masonry guide
attaching means comprise a coupling piece for attaching close to the upper
side of
the masonry guide, a wall support for attaching to the inner leaf and a
flexible
coupling arm for connecting the coupling piece and the wall support, wherein
the
coupling arm and the coupling piece are provided with second co-acting
coupling
means. The wall support can be attached to the inner leaf above the insulating
material of the cavity wall. The insulating material can hereby remain intact
and
retain a constant R-value.
The invention also relates to a joint body as described as component of the
system according to the invention.
The invention will now be described in more detail with reference to the
figures.
Figure 1 illustrates schematically the application of the system according to
the invention;
Figure 2 shows a schematic exploded view of diverse components of the
system according to the invention;
Figure 3 shows a joint body according to the invention in more detail;
Figure 4 shows a component of the system according to the invention in
more detail;
Figures 5A and 5B show schematically a second preferred embodiment of a
joint body according to the invention;
Figure 6A shows a partly cut-away view of a first variant of the second
preferred embodiment of the joint body;
Figure 6B shows a detail of a second variant;
Figure 7A shows a partly cut-away view of a third variant of the second
preferred embodiment of the joint body; and
Figure 7B shows a part of figure 7A in more detail.
The figures illustrate the application of the system according to the
invention
for adjusting a masonry guide 100 relative to a brick cavity wall to be laid.
Figure 1
shows schematically diverse components of the system according to the
invention
in a position of use.
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Wall 220 forms the outer leaf of a cavity wall and is referred to in the field
as
facing brickwork. As is usual, the cavity wall further comprises an inner leaf
210.
Insulating material 230 is arranged between inner leaf 210 and outer leaf 220.
As is usual, a string or wire is tensioned between two masonry guides 100
just above the brickwork in progress such that the brick wall 220 to be laid
can be
laid level. Suitable masonry guides 100 are known in the field. In this
example a
wooden profile beam 100 is illustrated which is disposed in vertical position
close to
the corner of wall 220.
Figure 2 shows a schematic exploded view of further components of the
system according to the invention. Figure 3 shows a joint body 10 according to
the
invention in more detail.
According to the invention a joint body 10 is incorporated in a joint 222
between two bricks 221 lying one above the other. Joint body 10, further
referred to
as joint plug 10, serves to connect to wall 220 first attaching means 20
configured to
be attached to masonry guide 100.
For a stable vertical position second attaching means 30 for the masonry
guide are provided for the purpose of attaching masonry guide 100 to inner
leaf 210
of the cavity wall.
The most important component of adjusting system 1 according to the
invention is joint plug 10, which comprises two parts 11 and 12 slidable into
each
other. Parts 11 and 12 of joint plug 10 are connected releasably, preferably
breakably, to each other by means of a connecting line 13. Connecting line 13
forms a weakening in the material of joint plug 10 which will break loose
easily
under the influence of an impact force, for instance with a hammer and a
striking
pin, after which part 12 will slide at least partially into part 11.
The two joint plug parts 11, 12 have a corresponding form. In the shown
preferred embodiment the two joint plug parts have a tapering form. First part
11
preferably takes a hollow form and second part 12 an at least partially solid
form.
The length of joint plug 10 substantially corresponds to the width of a brick
221.
First part 11 is shorter than second part 12. The dimensions of parts 11 and
12 are
chosen such that part 12 can slide into part 11 once connecting line 13 has
been
broken. After part 12 has been knocked at least partially into part 11, joint
plug 10
will no longer be visible from outer leaf 220. The joint need only be filled
at this
position in order to conceal part 12 wholly from view.
For a rapid, precise placing joint plug 10 can be provided on an outer end
with one or more positioning edges extending substantially transversely of
part 12.
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The positioning edges are preferably connected breakably to part 12 so that
they
will break off easily after being subjected to a blow.
For a good adhesion in the joint material part 11 can be provided on either
side with wings. The wings preferably take a thinner form than part 11 and are
provided with holes.
Joint plug 10 is preferably manufactured from plastic, in particular a hard
plastic.
The first masonry guide attaching means 20 are configured to be attached to
masonry guide 100. The first masonry guide attaching means 20 comprise a base
22 for attaching to the underside of masonry guide 100. The first masonry
guide
attaching means 20 also comprise a coupling support 21 for attaching to joint
plug
10. Coupling support 21 and base 22 are provided with first co-acting coupling
means 24, preferably co-acting pins 24A and holes 24B.
Coupling support 21 comprises a flat surface which lies against brick 221 in
the position of use. In order to prevent damage to the bricks the surface is
preferably provided with a soft material, for instance rubber. Coupling
support 21
comprises a hole 23, preferably a slotted hole, through which screws can be
inserted in order to screw coupling support 21 to part 12 of joint plug 10.
Part 12 is
provided for this purpose with holes 14.
The first co-acting coupling means 24 can be attached to coupling support
21 by means of adjusting means, for instance a slotted hole connection 25.
Masonry guide 100 can be coupled in releasable manner by means of the first
masonry guide attaching means 20 to coupling support 21, which is temporarily
attached to joint plug 10.
Figure 4 shows a component of the system according to the invention in
more detail. When the bricklaying operations begin, practical use can be made
of a
ground element 26 to attach the underside of masonry guide 100 to ground
surface
200, for instance a concrete floor. Ground element 26 is provided with parts
of the
first co-acting coupling means, in this embodiment pins 24A, for the purpose
of
releasable coupling to base 22 of masonry guide 100. Ground element 26 is
further
provided with holes 27 for fixing to the ground surface 200. The ground
element is
preferably plate-like and also functions as adjusting plate. The ground
element is
provided with a setting line M which represents the wall line. The brick wall
is laid
partially on ground element 26 along line M. A number of rows higher a joint
plug 10
is then inserted in a straight line above ground element 26. The first masonry
guide
attaching means 20 can then be connected to joint body 10. The adjusting
system
according to the invention is guaranteed to be dimensionally stable.
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The second masonry guide attaching means 30 comprise a coupling piece
31 for attachment preferably close to the upper side of masonry guide 100, and
a
wall support 32 for attaching to inner leaf 210. A flexible coupling arm 33 is
further
provided for the purpose of connecting coupling piece 31 and wall support 32.
Coupling arm 33 and coupling piece 31 are provided with second co-acting
coupling
means 34 for releasable coupling of masonry guide 100 to inner leaf 210.
The second co-acting coupling means 34 preferably comprise two plate-like
parts on the outer end of coupling piece 31 or arm 33 which are rotatable
relative to
each other. Arm 33 or coupling piece 31 can be configured to receive one of
the two
parts, which are embodied such that the second co-acting coupling means can be
locked in position by rotation thereof. Coupling piece 31 preferably comprises
an
angle element with which it can be screwed to masonry guides of diverse
dimensions. Wall support 32 is preferably screwed to inner leaf 210 at one
attachment point and is further provided with a hole 35, preferably a slotted
hole, for
mounting of arm 33. Using these second masonry guide attaching means 30 the
masonry guide 100 can be releasably coupled to inner leaf 210 at a second
position.
Flexible arm 33 is preferably manufactured from plastic so that it on the one
hand guarantees a reliable position of masonry guide 100 while on the other
hand
providing the flexibility required to enable masonry guide 100 to be moved if
necessary.
The first and second masonry guide attaching means are provided as far as
possible with slotted holes so as to simplify a dimensionally stable
attachment.
Figures 5A and 5B show schematically a second preferred embodiment of a
joint body 110 according to the invention as alternative to joint body 10.
Joint body
110, also referred to as joint plug 110, is shown in figure 5A in the position
of use in
which the joint plug has the maximum dimension in sliding direction. This
maximum
dimension is equal to or smaller than the corresponding dimension of the brick
in
sliding direction. In the shown preferred embodiment the maximum length of
joint
plug 110 is equal to or smaller than the width of brick 221. In figure 5B
joint plug
110 is shown in pushed-in position or rest position. Just as joint plug 10,
joint plug
110 comprises two parts 111 and 112 slidable into each other. Parts 111 and
112 of
joint plug 110 are releasably or detachably connected to each other by means
of a
connection 113, 113' or 213. These different connections are shown in figures
6A,
6B and figures 7A and 7B. Connections 113, 113' and 213 are easily releasable
or
detachable under the influence of an impact force, for instance with a hammer
and
a striking pin, after which part 112 will slide at least partially into part
111.
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In the second preferred embodiment the part 111 is provided on both sides
with side wings 115. Side wings 115 are optionally provided with holes 116 for
the
purpose of fixing joint plug 110 to the brickwork. Part 111 is provided on the
side
remote from part 112 with rear wings 117. Part 112 is provided on the front
side
with holes 114 for connection to the first masonry guide attaching means. Part
112
is further provided with optional positioning edges 118 extending
substantially
transversely of part 112. Positioning edges 118 are preferably manufactured
from a
flexible material so that they can bend when part 112 slides into part 111.
Positioning edges 118 can alternatively also take a breakable form.
Figure 6A shows a partly cut-away top view of joint body 110 provided with a
first variant of the connection 113 between part 111 and part 112. Figure 6B
shows
a detail view of a second variant of the connection 113' between part 111 and
part
112. Each of the connections 113, 113' takes a releasable form here and
functions
as snap connection. Snap connection 113, 113' fixes part 112 relative to part
111 in
the position of use. After removal of the masonry guide and the first masonry
guide
attaching means the joint plug 110 can be moved to the rest position.
Connection
113, 113' is snapped loose or broken off under the influence of an impact
force and
part 112 can be pushed into part 111.
Figure 7A a partly cut-away top view of joint body 210 provided with a third
variant of the connection 213 between part 211 and part 212. Connection 213 is
a
breakable connection. Connection 213 can be broken under the influence of an
impact force on part 212, after which part 212 can be pushed into part 211.
Joint plug 210 is further wholly similar to joint plug 110. All corresponding
components have reference numerals increased by 100 relative to the components
of figure 6A.
In all shown preferred embodiments the connection 13, 113, 113', 213
serves to fix the parts 111 and 112 in the position of use. The connection is
such
that it releases under the influence of an impact force, for instance by
breaking or
snapping loose. The connection can extend along a line such as (a part of) the
peripheral edge of part 112 or can be formed by discrete points, and is
generally a
local weakening of the material.
The invention is based on the concept of attaching a masonry guide on the
underside and/or on the upper side to the brick wall to be laid by means of
the joint
body according to the invention. When this inventive concept is applied in the
case
of a cavity wall, the upper side of the masonry guide can be attached to the
inner
leaf and an optimal two-point attachment will suffice. With the adjusting
system
according to the invention a (permanent) coupling between the inner leaf and
the
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outer leaf can be avoided and the associated drawbacks, including moisture
transport and dirt accumulation, will not occur. The dimensions of the joint
plug are
the same as or smaller than the dimensions of the brick. The joint plug
according to
the invention is therefore also suitable for use in a half-brick wall since in
the rest
position the joint plug can be wholly received in the mortar of the joint.
The invention is of course not limited to the described and shown preferred
embodiment but extends to any embodiment falling within the scope of
protection
as defined in the claims and as seen in the light of the foregoing description
and
accompanying drawings.
