[0001] The present invention relates to a clip for fastening of roof tiles, which are cut
at an angle, to valley gutters or hip roofs, comprising a first U-shaped clamp part
for insertion onto the roof tile, wherein the first U-shaped clamp part comprises
an opening in the bottom of the U-shape, and a second fastening part designed with
an elongated section for fastening to battens or hip boards
[0002] The present solution aims to solve the problem by fastening small bits of roof tiles
cut at an angle.
[0003] Clips for fastening of roof tiles cut at an angle are known from, among others, FOS®
(Fr. Ossenberg-Schule + Söhne GmbH + Co KG), for instance as disclosed in
EP 1 462 585 B1. Reference is here made to a clip comprising a U-shaped part of spring steel which
is inserted and clamped down onto the edge of the roof tile. Furthermore, the clip
has a fastening part that can be folded outwards and which is screwed to a batten
and/or a fastening wire that runs from the clip and which can be fastened round a
batten, screw or nail, can be used.
[0004] The difference between the present invention and the clip produced by FOS® is that
in the present invention the clip is locked by pulling the one part through the other.
Therefore, there is no need to tap the clip onto the roof tile with a hammer or the
like and thereby damage the roof tile. A better grip on the roof tile is obtained
because the part of the roof tile where the teeth shall engage is not scratched. The
present invention is more flexible with regard to different roof tile shapes and different
batten heights. A more rigid connection is obtained than with fastening wire. Furthermore,
a simpler laying of the roof tiles is obtained in that one can use screws or nails
on the top of the batten and not down between the roof tiles.
[0005] EP 1 154 094 A1 discloses a retaining clip having a rigid U-shaped body with resilient sharp projections
protruding out from the inner faces of two arms. The projections project inclined
out from the arms with their tips facing the base of the u-shaped body. The projections
on the arm which is to be mounted on the top side of the tile are lower than those
on the other arm.
[0006] DE 19647528 C1 also discloses a retaining clip with a U-shaped body for fastening to the roof tile.
[0007] The present invention shall keep in place roof tiles that have been cut at an angle
to obtain a better fit to either valley gutters or hip roofs. Such roof tiles are
often too small to get sufficient positioning and fastening possibilities to a batten.
Besides, bits of roof tiles that fall down can cause damage to people and other building
parts (for example, gutters and eaves) and, in addition, they can "chatter" loudly
in the wind. The present invention will provide a sturdy fastening at the same time
as it can be adapted to the dimensions of the batten, shape of the roof tile, etc.
[0008] The locking function of the present invention is not known or obvious from the cited
art.
[0009] The abovementioned objects are realised by a clip as described in the independent
claim 1, in that the second fastening part is equipped with a head at one end, with
the head being arranged to fit into the first U-shaped clamp part, while the elongated
section of the fastening part is arranged to be led through the opening in the first
clamp part, wherein the roof tile is being clamped in the U-shaped clamp part by the
head.
[0010] Alternative embodiments are described in the dependent claims 2-7.
[0011] The head of the second fastening part can comprise an outer edge section arranged
at an angle.
[0012] The U-shape of the first clamp part can comprise internal barbs, at least on the
leg which is opposite to the head of the second fastening part when the parts are
mounted together. The head of the second fastening part can also comprise barbs that
are oriented towards the inside of the u-shape of the first clamp part when the parts
are mounted together.
[0013] The second fastening part can further comprise a weakened neck section between the
head and the elongated section. The elongated section of the second fastening part
can also comprise a number of holes for fastening with the help of screws, nails,
etc., to a batten or a hip board.
[0014] The first clamp part can comprise external reinforcement ribs.
[0015] The invention shall now be explained in more detail with the help of the enclosed
figures, in which:
Figure 1 shows a first clamp part that is included in the clip according to the invention.
Figure 2 shows a second fastening part that is included in the clip according to the
invention.
Figure 3 shows the two parts shown in the figures 1 and 2 mounted together.
Figures 4 to 6 show fastening of the clip, according to the invention, to a roof tile.
Figure 7 shows the clip, according to the invention, fastened to a roof tile and to
a batten.
[0016] As the figures show, the present clip 10 comprises two parts: A u-shaped clamp part
14 and an elongated fastening part 16.
[0017] The U-shaped clamp part 14, as shown in figure 1, is equipped with teeth or barbs
30 for locking to a roof tile 12, at least internally on one of the legs 14a that
is oriented towards the elongated part 16 when the parts are mounted together. The
barbs 30 can simply be punched out or be manufactured in other known ways. Furthermore,
the part 14 can be equipped with external reinforcement ribs 32, to reinforce the
part or to provide a clamping force. An opening 18 is provided in the bottom of the
U-shape of the part 14, for example, in the form of a slit or aperture. The clamp
part 14 can be manufactured by a yielding material, such as spring steel.
[0018] The elongated fastening part 16, shown in figure 2, comprises an elongated section
20 that extends towards a head 22 at the one end. A neck section 36 is preferably
provided between the head 22 and the elongated section 20 so that a weakened area
is created, which makes the bending of the fastening part 16 easier. Furthermore,
the fastening part 16 is equipped with teeth or barbs 24 on the head 22 for locking
to the roof tile 12. When the parts are mounted together the barbs 24 of the fastening
part 16 are oriented towards the barbs 30 of the clamp part 14. The elongated section
20 of the fastening part 16 comprises a number of holes for fastening to battens or
hip boards with nails or screws, and, in addition, the elongated section 20 can be
bent around the battens or hip boards. An outer edge 28 set at an angle is provided
in front of the head 22 of the fastening part 16. The purpose of the bent or angled
edge 28 is to create a stronger force from the barbs against the roof tiles.
[0019] The U-formed clamp part 14 is so roomy that there is plenty of space for the roof
tile, but even with the barbs 30 this alone does not provide a sufficient locking
to the roof tile. Therefore, a clamping force must be provided against the roof tile.
This is achieved by inserting the elongated section 20 of the fastening part 16 through
the opening 18 at the bottom of the U-shaped clamp part 14, so that the head rests
internally against one of the legs of the U-shape of the clamp part 14 and is being
squeezed or clamped against the roof tiles 12.
[0020] Mounting of the clips 10 to the roof tile is shown in the figures 4 to 6. First,
the roof tile 12 must be cut at an angle. During the mounting, the clip 10 shall be
open, i.e. the flat head 22 of the fastening part 16 shall be out of the U-shaped
part of the clamp part 14 ,as shown in figure 4. The U-part is led onto the roof tile
12 and then the head 22 is pulled into the U-part, as shown in figure 5, so that the
clip 10 is locked to the roof tile 12. Thereafter, the roof tile is put in place and
the elongated section 20 of the fastening part 16 can be bent around the batten and
be nailed or be screwed down through the holes 26 of the section 20.
[0021] Figure 7 shows the clip 10 mounted to a batten 34 and a roof tile 12.
1. Clip (10) for fastening of roof tiles (12), which are cut at an angle, to valley gutters
or hip roofs, comprising a first U-shaped clamp part (14) for insertion onto the roof
tile (12), wherein the first U-shaped clamp part (14) comprises an opening (18) in
the bottom of the U-shape, and a second fastening part (16) designed with an elongated
section (20) for fastening to battens or hip boards, characterised in that the second fastening part (16) is equipped with a head (22) at one end, with the
head (22) being arranged to fit into the first U-shaped clamp part (14), while the
elongated section (20) of the fastening part (16) is arranged to be led through the
opening (18) in the first clamp part (14), wherein the roof tile (12) is clamped in
the U-shaped clamp part (14) by the head (22).
2. Clip according to claim 1, characterised in that the head (22) of the second fastening part (16) comprises an outer edge section (28)
set at an angle.
3. Clip according to claim 1, characterised in that the U-shape of the first clamp part (14) comprises internal barbs (30), at least
on one leg (14a) which is opposite to the head (22) of the second fastening part (16)
when the parts (14, 16) are mounted together.
4. Clip according to claim 3, characterised in that the head (22) of the second fastening part (16) comprises barbs (24) oriented towards
the inside of the U-shape of the first clamp part (14) when the parts (14, 16) are
mounted together.
5. Clip according to claim 1, characterised in that the second fastening part (16) comprises a weakened neck section (36) between the
head (22) and the elongated section (20).
6. Clip according to claim 1, characterised in that the elongated section (20) of the second fastening part (16) comprises a number of
holes (26) for fastening with the help of screws, nails, etc., to a batten or hip
board (34).
7. Clip according to claim 1, characterised in that the first clamp part (14) comprises eXternal reinforcement ribs (32).