Note: Descriptions are shown in the official language in which they were submitted.
CA 02953978 2017-01-09
BALL GAME GOAL
Description
[0001] The invention relates to a ball game goal, for example a handball goal
or
soccer goal. These ball game goals can either be built stationary on a
corresponding sports ground or in a corresponding sports hall or designed as
transportable ball game goals.
[0002] The invention relates to all ball game goals, i.e. stationary and
transportable ball game goals. Alongside the ever-present goalposts and the
crossbar connecting the goalposts at their upper ends, these ball game goals
also have a base frame. This base frame usually consists of longitudinal
braces
and transverse braces. The base frame serves as a fixing frame for the lower
edge of the goal net for fixedly anchored ball game goals. In case of
transportable or free-standing ball game goals, the base frame must ensure
that
the ball game goal stands securely, so that it does not tip over during
gameplay
or in case of wind or bad weather. The base frame consequently serves as a
base for transportable and free-standing ball game goals. Usually, this base
in
turn further serves as a ground-based attachment for the goal net. Through the
ground-based attachment of the goal net it is prevented that the ball can be
thrown or kicked under the net.
[0003] By using such base frames the problem ensues that the goalkeeper could
injure himself or herself when falling in case of a shot at the goal or when
diving
for the ball. A risk of injury also arises for the field players who slip near
the ball
game goal and slide into the goal.
[0004] On this basis, the object of the invention is to develop a ball game
goal
with a base frame such that the risk of injury is significantly reduced.
[0005] The combination of features in claim 1 addresses this problem in an
innovative way. The dependent claims include further developments of this
invention that are partially advantageous and partially innovative for
themselves.
The invention is based on the main consideration of affixing one or several
protective pads at least in the area of the longitudinal and transverse
braces,
which form the base frame and are facing the goal opening of the ball game
goal. The invention is particularly suited for the base frame described at the
beginning with transverse braces adapted to the lower ends of the goalposts
and
a longitudinal brace connecting the ends of the transverse braces facing away
from the goalposts.
[0006] The invention is suited for ball game goals (stadium goals)
stationarily
fixed to the playing field as well as for transportable and free-standing ball
game
goals. The ball game goals stationarily fixed to the playing field have
goalposts
with appendages, which are driven into the ground of the playing field like
pegs
of a camping tent to fix the ball game goal in a form-fitting manner. Here,
the
base frame serves as a fixing frame for the lower edge of the goal net. The
base
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,
frame primarily serves as a base for transportable and free-standing ball game
goals, and secondarily has - where applicable - the additional function of a
ground-based attachment for the goal net.
[0007] In a further preferred design, the longitudinal and transverse braces
are
designed as hollow profiles. Aluminum hollow profiles are particularly suited
for
this. These profiles are stable yet light. They are also very weather-
resistant and
thus have excellent functional properties.
[0008] In an appropriate design of the invention, a profile channel extending
in a
longitudinal direction of the profile is introduced onto the outer surface of
the
hollow profile. This profile channel is perfectly suited as a holding groove
for
retaining projections on the protective pad that are locked or latched on the
profile channel. In this way the edges and the profile channel form a groove-
spring connection between the longitudinal braces and the transverse braces on
the one hand and the protective pad on the other.
[0009] A closed profile chamber is further advantageous for the formation of
an
also closed hollow profile body. The closed profile chamber is advantageously
completed by a half-open profile chamber. The half-open profile chamber can
variedly be used as a function channel, for instance as a holding groove or
holding channel for the welt of a goal net.
[0010] Any energy-absorbing, energy-consuming or energy-reducing material is
suited as material for the protective pad. It is possible to use materials
with
plastic ductility. A protective pad with plastic ductility however has the
disadvantage that it must be replaced after each deformation. For this reason,
it
is more suitable to use materials with elastic ductility, particularly
materials that
return to their original shape after the deformation, i.e. exhibiting a so-
called
"shape memory" effect.
[0011] A protective pad made of rubber is preferred. Due to its energy-
absorbing
characteristics, sponge rubber is considered particularly suited for this. In
an
alternative design, it also possible to produce the protective pad from suited
plastic materials.
[0012] It is additionally possible to manufacture the protective pad from
solid
material. Such solid material has the advantage of being very stable and
robust.
Alternatively, it is possible to use a hollow body as a protective pad.
Usually,
hollow bodies have a weight advantage. This weight advantage facilitates the
transport of the ball game goal above all. The use of a hollow body can be
constructively improved in such a way that reinforcements or stiffeners such
as
stiffening ribs or similar are provided in the hollow body. For instance,
hollow
plastic profiles with elastic ductility are perfectly suited as hollow bodies.
[0013] Furthermore, many advantageous and practically suited methods exist to
adapt the protective pad to the longitudinal and transverse braces. There is a
material-fitting variant in bonding the protective pad with the longitudinal
and
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transverse braces. Alternatively, the protective pad can be vulcanized onto
the
longitudinal and transverse braces. These two types of fixing guarantee a
permanent fixing of the protective pad onto the longitudinal and transverse
braces.
[0014] Provided that a removability of the protective pad is desired, for
instance
to be able to clean it better or to be able to store it separately from
longitudinal
and transverse braces, it is also possible to fix the protective pad to the
longitudinal and transverse braces with a circulating belt. Alongside the
aforementioned groove-spring adaptation, it is also possible to use a force
fit for
the adaptation of the protective pad.
[0015] Should already available ball game goals be equipped with a protective
pad, an embodiment with flexible straps is suited alongside the use of a
circulating belt. The straps and the protective pad spread over the surfaces
of
the longitudinal and transverse braces that are to be padded and have passage
openings. The so-called pegs can be inserted through the passage openings, as
they are for instance known from tents on campsites or in another outdoor
area.
The straps can be easily fixed with the pegs in the ground beneath the playing
field on which the ball game goal is set up.
[0016] With the design examples illustrated in the drawings the invention is
clarified with other details. They show:
[0017] Fig. 1 a perspective view of a goal frame with a base frame of a ball
game goal according to this invention,
[0018] Fig. 2 detail II from Fig. 1
[0019] Fig. 3 a design example of a groove-spring adaptation of a protective
pad
made from solid material,
[0020] Fig. 4 a design example of a groove-spring adaptation of a hollow body
with stiffening ribs as a protective pad,
[0021] Fig. 5 the protective pad from Fig. 4 but without ribs,
[0022] Fig. 6 a design example of an affixed protective pad,
[0023] Fig. 7 a design example of a protective pad with a circulating belt,
[0024] Fig. 8 an embodiment of a protective pad with a tube-like rubber
profile,
in which the longitudinal and transverse braces are inserted,
[0025] Fig. 9 a protective pad fixed in the manner of a groove-spring
connection
with a two-part profile channel,
[0026] Fig. 10 a form-fitting attachment of the protective pad in the profile
channel,
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[0027] Fig. 11 a protective pad fixed in the profile channel by means of a
screw
and
[0028] Fig. 12 a protective pad fixed in the ground beneath the playing field
by
means of pegs.
[0029] The ball game goal illustrated in Fig. 1 is a stationarily fixed ball
game
goal, namely a typical stadium goal, which consists of a goal frame 1 and a
base
frame 2. The goal frame 1 comprises the two goalposts 4 extending in a
vertical
direction 3 and the crossbar 5 connecting the two goalposts 4 at their upper
ends. At the upper ends of the goalposts 4 two other bow-shaped spacers for
the
goal net, not illustrated in the drawing, are attached to the side facing away
from
the playing field.
[0030] In the lower ends area of the goalposts 4 of the ball game goal, two
transverse braces 7 and a longitudinal brace 8 connecting the transverse
braces
7 to its ends facing away from the goalposts 4 are fixed with the fixing
elements
9 indicated schematically in the drawing. The transverse braces 7 and the
longitudinal brace 8 thus form the base frame 2 for the goal frame 1 of the
ball
game goal. The crossbar 5 and the longitudinal brace 8 both run parallel in a
central longitudinal direction 10 of the goal frame 1 in the final assembled
state
of the ball game goal.
[0031] Fig. 2 shows the detail ll from Fig. 1, namely the profile joint of the
hollow
profiles forming a transverse brace 7 and a longitudinal brace 8,
respectively.
These hollow profiles are preferably developed as hollow aluminum profiles. In
Fig. 2, the hollow chamber opening 11 of an open profile chamber of a hollow
profile forming a transverse brace 7 or a longitudinal brace 8 can be seen.
The
hollow chamber opening 11 is not continuous in the design example, but is
periodically bridged over by profile webs 13.
[0032] In the set state, the goal frame 1 stands on the one hand with the base
frame 2 on the surface of the playing field. On the other hand, the lower ends
of
the goalposts 4 also serve as standing surfaces, wherein the lower ends of the
goalposts 4 are provided as appendages 14. These appendages 14 are bored
into the grass or sand soil of the playing field in the manner of pegs of a
camping
tent and thus fix the ball game goal in the ground of the playing field in a
form-
fitting manner. These appendages 14 are missing in transportable or free-
standing ball game goals, where the base frame also acts a rear base for the
ball
game goal.
[0033] Fig. 3 to Fig. 12 both show a profile cross-section of a hollow
profile,
which can be used in the final assembly state as a transverse brace 7 as well
as
a longitudinal brace 8 of a base frame 2. In the illustration of Fig. 3 to
Fig. 12,
this profile cross-section forming the transverse brace 7 or the longitudinal
brace
8 exhibits the open profile chamber 12 with the profile chamber opening 11 on
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the right side of the cross-section illustration, whereas on the left a closed
profile
chamber 15 is developed near the open profile chamber 12.
[0034] In the set up final assembled state of the ball game goal, the closed
side
wall 16 of the closed profile chamber 15, facing away from the hollow chamber
opening 11, faces the playing field and thus the opening of the ball game
goal.
Above the open profile chamber 12 and the area of the closed profile chamber
15 facing the open profile chamber 12, another closed flat profile chamber 17
is
developed. The top surface 18 of the flat profile chamber 17 runs at a right
angle
to the closed side wall 16 of the closed profile chamber 15. The top surface
18 of
the flat profile chamber 17 and the upper end of the closed side wall 16 are
connected to one another by a curved area 19. The curved area 19 is thus
attached to the top surface of the closed side wall 16 and the top surface 18
of
the flat profile chamber 17 is attached to the curved area 19.
[0035] In the set up final assembled state of the ball game goal, the closed
side
wall 16 and the curved area 19 of the hollow profile face the playing field
and
thus the observer of Fig. 1 with regard to the longitudinal brace 8 and the
transverse brace 7 illustrated in Fig. 1. Around the center of the curved area
19,
an open profile channel 20 is formed extending in the longitudinal direction
of the
profile, i.e. in a central longitudinal direction 10 in the longitudinal brace
8 and
open in the direction of the opening of the ball game goal.
[0036] The protective pad 21 rests on the top surface 18 of the flat profile
chamber 17 and on the curved area 19. Here, the protective pad 21 is arranged
on the hollow profile such that it covers the curved area 19 completely. The
top
surface 18 of the flat profile chamber 17 adjacent to the curved area covers
the
protective pad 21 only partially, namely only the area facing the goal opening
of
the ball game goal. The closed side wall 16 of the closed profile chamber 15
adjacent to the curved area 19 on the other side leaves the protective pad 21
essentially free. The protective pad 21 however protrudes with its nose 22
over
the closed side wall 16 in a transverse profile direction 23. The nose 22 thus
forms, as it were, a bumper-like impact cushion.
[0037] The protective pad consisting of solid material in the design example
of
Fig. 3 is adapted in the profile channel 20 by means of an arrow-shaped
flexible
profile strip 24. With its arrow edges 25 the profile strip 24 engages under
the
opening edges 26 of the opening of the profile channel 20 protruding into the
profile channel in the manner of webs.
[0038] The design examples of the invention illustrated in Fig. 4 and Fig. 5
differ
from the above-described design example in Fig. 3 exclusively with regard to
the
arrangement of the protective pad 21, for which subsequently only the
differences with the above described design example from Fig. 3 are described.
Fig. 4 and Fig. 5 respectively show a protective pad 21 designed as a hollow
body. Such a hollow protective body can be designed reversibly as well as
irreversibly ductile, in order to remove the energy working on the protective
pad
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21 through the deformation. In order to hinder the deformation of the
protective
pad 21 or to absorb a higher deformation energy, the hollow space of the
protective pad 21 designed as a hollow body can have rib-like reinforcements
27
in the hollow space according to the design example in Fig. 4. The
reinforcements 27 then have the effect of stiffening ribs of the protective
pad 21.
[0039] The design example shown in Fig. 6 shows, as in Fig. 3, a protective
pad
21 made of solid material. The hollow profile illustrated in Fig. 6 is
identical to the
hollow profiles illustrated in Fig. 3, Fig. 4 and Fig. 5 with regard to its
structure.
The protective pad 21 has no profile strip 24 in this design example. In the
design example of Fig. 6, the attachment of the protective pad 21 takes place
in
a material-fitting manner by means of adhesive elements 28, which on the one
hand are located on the top surface 18 of the flat profile chamber 17 and on
the
other hand on the curved area 19 of profile top surface, and operate on the
bottom surface of the protective pad 21 with their adhesive effect.
[0040] The design example according to Fig. 7 in turn shows the hollow profile
known from the previous drawings as well as the protective pad 21 made of
solid
material already described with Fig. 3 and Fig. 6. The adaptation of the
protective pad 21 takes place by means of a lashing strap 29 adapted to the
protective pad. The lashing strap 29 surrounds the closed side wall 16, the
bottom surface 30 of the hollow profile as well as the side wall of the hollow
profile with the hollow chamber opening 11. By means of a ratchet closure 31
operating as a tension ratchet, the lashing strap 29 is sealed and prestressed
all
around the hollow profile.
[0041] Instead of the lashing strap 29, also several holding straps 32 lying
next
to each other can include the otherwise unchanged hollow profile. Instead of
holding straps 32 arranged with spacing between one another, a continuous tube
can also be used that surrounds the hollow profile and at the same time takes
it
in. The hollow profile or the transverse brace 7 or the longitudinal brace 8
must
then be respectively entered into the holding straps 32 or the holding tube in
the
longitudinal direction of the profile. The protective pad 21 in the design
example
of Fig. 8 is also produced from solid material.
[0042] Fig. 9 shows an embodiment of the invention, in which the design as
well
as the fixing of the protective pad 21 onto the hollow profile takes place
identically to the embodiment according to Fig. 3 in a form-fitting manner
through
a profile strip 24 located in the profile channel 20. Here the arrow edges 25
of
the profile strip 24 also in turn engage under the opening edges 26 of the
opening of the profile channel 20. In comparison to the embodiment shown in
Fig. 3, the profile channel 20 has a two-part structure. For this, the closed
profile
chamber 15 is implemented in a minimized manner. Instead of the closed side
wall 16 forming the outer wall, a connecting side wall 33 is designed, which
is
inserted on the right side in a transverse profile direction into the closed
profile
chamber 15 opposite the outer contour of the hollow profile, and running also
at
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,
a right angle to the top surface 18 of the flat profile chamber 17. The
connecting
side wall 33 is designed in the manner of a mounting flange, and for this has
a
mounting hole equipped with an inner thread for a threaded bolt 34. In turn, a
right-angled, and thus essentially parallel to the top surface 18 of the flat
profile
chamber 17, supporting wall 35 connects to the connecting side wall 33 below.
The supporting wall 35 finally leads to a wall section 36 that is bent at a
right
angle, which substitutes a subsection of the closed side wall 16. A hollow
profile
body 37, with one of two legs 38 perpendicular to one another and with a
curved
area 19 connecting the free ends of these legs 38, is finally available. The
threaded bolt 34 extends through this hollow profile body 37. By means of the
threaded bolt 34, the hollow profile body 37 is screwed onto the connecting
side
wall 33 during assembly.
[0043] While the right and lower side wall of the profile channel 20 continue
to be
fitted to the exterior of the closed profile chamber 15 of the hollow profile,
the
end of the vertical leg 38 forms the left side wall of the profile channel 20
in the
design example. In contrast to the design example in Fig. 3, the profile strip
24
here is not simply clipped into a single-piece profile channel 20, but simply
inserted into the profile channel 20 and then, screwing the hollow profile
body
37, form-fittingly secured to the connecting side wall 33 by the opening edges
26
of the two-part profile channel 20 again engaging behind the arrow edges 23 of
the profile strip 24 in the final assembled state. This embodiment is suited
for the
use of a non-elastically ductile profile strip 24 on the protective pad 21.
[0044] Fig. 10 shows another attachment of the protective pad 21 to the
profile
channel 20, operative in the manner of a groove-spring connection. From the
attachments shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 9, no profile strip 24 is
fitted
to the protective pad 21 illustrated in Fig. 10. Here, the attachment of the
protective pad 21 to the hollow profile otherwise identical to the hollow
profile
according to Fig. 3 to Fig. 8 takes place by means of an attachment loop 39
fitted to the bottom surface of the protective pad, and a fixing element 40
inserted into the attachment loop 39, which fills out the profile channel 20
at least
partially and is so big that it does not pass through the opening in the
profile
channel 20 flanked by the opening edges 26. The fixing element can for
instance
be a bar stretching in a longitudinal direction of the profile. It is also
possible to
use a reversibly ductile pad that is pressed through the opening left free by
the
opening edges 26 and is subsequently expanding in the profile channel 20.
[0045] Fig. 11 shows a particular embodiment of the hollow profile, in which
the
profile channel 20 is replaced by a screw channel 41 according to the
embodiments of Fig. 3 to Fig. 10. A fixing screw 42 passing through the bottom
surface of the protective pad 21 is screwed into the screw channel 41, so that
the protective pad 21 is screwed, as it were, with the hollow profile. In the
embodiment of Fig. 11, the protective pad 21 is otherwise structurally
identical to
the protective pad 21 illustrated in Fig. 4 with a hollow space with
reinforcements
27 extending through it.
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[0046] In turn, Fig. 12 finally shows the hollow profile known from the design
examples of Fig. 3 to Fig. 10. Outward-facing brackets 43 are fitted to the
ends
of the protective pad 21, namely the nose 22 and the end of the protective pad
21 facing away from the nose 22. In the final assembled state these brackets
43
are passed through by nail-like pegs 44 and engage into the soil 45 of the
playing field. In the design example of Fig. 12, the protective pad 21
consisting
of solid material is secured in the soil 45 by means of the pegs 44 similarly
to a
camping tent. This embodiment is particularly suited for a subsequent
attachment of a protective pad 21 to an existing base frame 2 of an already
existing ball game goal.
[0047] For the sake of completeness, it should be noted that the above-
described types of attachment of the protective pad 21 to the hollow profile
do
not depend on the design of the protective pad 21. Rather a protective pad 21
made of solid material, a protective pad 21 with a hollow body and a
protective
pad 21 with a hollow body with reinforcements 27 can be attached to the hollow
profile with all the described attachment types.
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Reference signs list
1 Goal frame
2 Base frame
3 Vertical direction
4 Goa!post
Crossbar
6 Spacer
7 Transverse brace
8 Longitudinal brace
9 Fixing elements
Central longitudinal direction
11 Hollow chamber opening
12 Open profile chamber
13 Profile webs
14 Appendage
Closed profile chamber
16 Closed side wall
17 Flat profile chamber
18 Top surface
19 Curved area
Profile channel
21 Protective pad
22 Nose
23 Transverse profile direction
24 Profile strip
Arrow edge
26 Opening edge
27 Reinforcement
28 Adhesive element
29 Lashing strap
Bottom surface
31 Ratchet closure
32 Holding strap
33 Connecting side wall
34 Threaded bolt
Supporting wall
36 Wall section
37 Hollow profile body
38 Leg
39 Attachment loop
Fixing element
41 Screw channel
42 Fixing screw
43 Bracket
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,
44 Peg
45 Soil
