Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B63/00—Targets or goals for ball games
  • A63B63/004—Goals of the type used for football, handball, hockey or the like
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
  • A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
  • A63B71/023—Supports, e.g. poles
  • A63B2071/026—Supports, e.g. poles stabilised by weight
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
  • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers

Definitions

• the presented invention is a construction of mobile sports goal of increased safety, thanks to which the risk of injury during sports activities, especially football (soccer), is reduced.
• a published international application No. WO 2008/152175 describes a sports goal having reduced risk of injury for sporting people, as well as standard features as regards balls bouncing. Its two side bars and beam contain a solid core of metal, wood or similar material, which is surrounded by a spongy porous shell based on EPDM (ethylene-propylene-diene-monomer), which in turn is covered with an outer layer of polyethylene bearing polyurethane coating.
• EPDM ethylene-propylene-diene-monomer
• a published international application No. WO 2007/096435 describes a sports goal that prevents injuries that could be caused due to an impact of the structure of the goal.
• This goal contains bars and beam, which are made of flexible material such as rubber, which may be filled with sand, gravel, liquids, iron sawdust or similar material.
• a published international application No. WO 2009/129257 describes an anchoring device and a method of anchoring of a mobile goal.
• Document FR 2 610 205 relates to a mobile device used in a sporting environment, made of tubular aluminum sections. It also includes a system of wheels, an anchoring system for fixing the goal to the ground at two places. The device is equipped with a system of carabines for attaching a net.
• the aim of the presented invention is to provide mobile sports goal construction of increased safety without the need for additional anchoring or use of weight systems.
• Goal of increased safety within the meaning of the invention means a goal that cannot tip over or it may tip over, but only with difficulties, and if it tips over, it goes down with the lowest possible energy.
• the weight and lengths of all its parts are designed for ensuring that the center of gravity of the goal in it ' s working position is at a distance of at least 40% of the depth from the plane defined by the vertical bars and at a distance of less than 50% of the height of the goal from the plane defined by the bottom side bars and at a distance of 40 to 60% of the width of the goal from the plane defined by the vertical bar and the neighboring bottom side bar.
• the above mentioned arrangement of the center of gravity is preferably achieved by increasing the weight of the rear bottom bars, which can be, like all the other bars hollow, but unlike them, at least partially filled with a filling material, preferably concrete, to increase its weight, preferably in such a way that the center of gravity of this bar in working position is approximately in the middle of the bar length.
• the structure of the goal of the presented invention is defined using an open definition and therefore it may also contain additional components or bars, for example for attaching and / or straining the net and / or for facilitating any transport of the goal.
• the goal of the presented invention may contain means for attaching and/or straining the net such as bars, hooks, carabines, eyelets, wires etc.
• the net may be attached to the goal of the presented invention permanently, by means of adhesives or processes using heat, such as melting and welding.
• Another embodiment of the goal according to the present invention may contain means for simplifying the relocation of the goal, such as wheels and handles.
• All terms used to define the placement and the direction of the construction of the goal of according to the invention include also respective deviations from these conditions, for example deviations caused by technical limits for manufacturing.
• All the properties described independently in respect of individual parts (such as bars) of the goal according to the present invention as such apply for each and every of these parts individually.
• one embodiment may comprise a horizontal beam and vertical bars being circular in cross-section and the bottom rear bar and the bottom side bars being of a square cross-section.
• bar or "beam” means straight pole preferably, but the invention includes any possible types of embodiments, such as curved poles, which may be used on different occasions, according to the rules of a sport.
• Horizontal beam and vertical bars are usually, and preferably, straight, but the rear bottom bar and side bottom bar may be curved differently and may form an arc for example.
• Bars and beams can be of any cross-section, for example circular, square, rectangular, oval, preferably they are of square or circular cross-section, most preferably circular. Bars and beam (and the corners) may be hollow, partially filled or completely filled with the same material they are made of, or filled with other materials.
• the vertical bars and the horizontal beam have a standard features in terms of balls bouncing.
• the term 'corner' defines not only sharp right-angle corner, but the invention includes other possible shapes of corners, such as an arc, which may be used on different occasions, according to the rules of a sport.
• the weight of the rear bottom bar to the weight of the horizontal beam is greater or equal to a ratio of 2.5:1.
• this ratio is 3:1 to 7:1 , more preferably 3:1 to 5:1 , most preferably 3.5:1 to 4: . All those ratios within the above mentioned range are to be understood as if they were individually and explicitly mentioned.
• the range of 3:1 to 5:1 includes ratios 3,1 :1 , 3,2:1 , 3,01:1 , 3,11 :1 , etc.
• Goals known from prior art have said ratio 2:1 (steel goal) and 1 :2— 2:1 (duralumin goal).
• the ratios listed above will be achieved by making the rear bottom horizontal bar heavier than the horizontal beam and / or by making the rear bottom corners heavier than the top corners.
• the weight of the bars, beams, and corners can be influenced for example by using materials with different densities, using the same material with different wall thickness, using fillings, or by adding (bolting, welding) extra weight into the bottom rear corners and / or the rear bottom bar.
• the vertical bars, side bars and the front bottom corners will also have an impact on the stability of the goal of the presented invention, but their influence is lower than the ratio described above.
• the influence is negligible in case of a usual ratio of the length of the vertical bar to the length of the side bar, which is about in a range of 4:1 to 1:1.
• the structure of the mobile goal according to the invention is not heavier than 100 kilograms, such that it is not too heavy to carry.
• the structure of the goal according to the invention may be made generally of any suitable material such as metals and metal alloys (steel, aluminum, duralumin etc.), it is preferably made of plastic, for example polyamide (PA), teflon (PTFE), polyester (PES), polypropylene (PP), polyvinyl chloride (PVC), polyphenyl sulfide (PPS), acrylonitrile-butadiene-styrene (ABS).
• PA polyamide
• PTFE teflon
• PET polyester
• PP polypropylene
• PVC polyvinyl chloride
• PPS polyphenyl sulfide
• ABS acrylonitrile-butadiene-styrene
• the plastic materials may contain 20 to 99% by weight of matrix and 80 to 1 % by weight of reinforcing materials.
• a preferred composite material is resin, for example epoxy resin, polyester resin, vinyl-ester resin, or methyl-methacrylate resin, which is reinforced with fibers such as fiberglass (E- glass, S-glass) , carbon fibers, aramid fibers, basalt fibers, dynema fibers or natural fibers.
• the horizontal beam is made of composite material, which comprises:
• the vertical bars are made of composite material, which comprises:
• the rear bottom horizontal bar and the bottom horizontal side bars are made of composite material, which comprises: 20 - 75 % by weight matrix made of epoxy resin
• the composite material may contain additional ingredients such as additives and / or fillers, heat stabilizers, UV stabilizers, UV absorbers, antioxidants, pigments, dyes, etc.
• the construction of the goal according to the invention may be produced by using any standard way of production that is appropriate for the type of material from which the goal is made, such as drawing, welding, injection molding, pressing, blow molding, knitting, winding, fabric winding, etc.
• the structure of the goal according to the invention may be used wherever mobile sports goals are needed, for example in sports facilities like sports clubs or public sports facilities, playgrounds and school playgrounds.
• the goal according to the invention may be used as a fixed goal after it has been attached to the ground.
• the presented invention will be described further in more detail while using examples and attached drawings, which, however, do not limit the scope of protection of the presented invention. Even though the presented invention will be described by using the football (soccer) goal embodiment, the invention is not limited to the footbal (soccer) goal and the invention covers also goals used in other sports such as handball, hockey, lacrosse etc.
• Fig. 1 shows a perspective top front side view on the construction of the mobile goal of the presented invention.
• Fig. 2 schematically shows a side view on the construction of the goal of the presented invention in stable positions S1 and S2 and an unstable position L
• Example No. 1 construction of a mobile sports goal
• An embodiment of the construction of the mobile sports goal of the presented invention (see fig. 1 ) contains:
• bottom side bars 4 passing from the lower ends of said vertical bars in the direction behind the vertical plane of said vertical bars 3 and of said horizontal beam 1 , wherein the bottom side bars 4 connect the bottom ends of the vertical bars 3 and the side ends of the horizontal rear bottom bar 2, while the joints formed by the front ends of the vertical bars 3 and the lower ends of the vertical bars 3 are called the front bottom corners B, and the joints formed by the rear ends of the bottom side bars and by the side ends of the rear bottom horizontal bar 2 are called the rear bottom corners C.
• the center of gravity of the goal in its working position is in a distance of 65% of the depth from a plane passing through the vertical bars. It is also in a distance of 28 % of the height of the goal from a plane passing through the bottom side bars and it is in a distance of 50% of the width of the goal from a plane passing through the vertical bar and through the adjoining bottom side bar.
• Example No.2 construction of a mobile football (soccer) goal
• weight of the front bottom corner B 1.5 kg weight of the rear bottom bar 2: 7.5 kg
• the weight ratio of the weight of the bottom rear bar 2 and the rear bottom corners C to the weight of the horizontal beam and the upper corners A is 3,33: 1.
• the horizontal beam 1 contains: 25% by weight matrix of epoxy resin SCHELL, 75% by weight reinforcing material containing 30% by weight carbon fiber (Toray T700) and 70% by weight fiberglass (E-glass, OWENS CORNING)
• the vertical bars 3 contain: 25% by weight matrix of epoxy resin SCHELL, 75% by weight reinforcing material containing 10% by weight carbon fiber (Toray T700) and 90% by weight fiberglass (E-glass, OWENS CORNING)
• the rear bottom bar 2 and the bottom side bars 4 contain: 25% by weight matrix of epoxy resin SCHELL, 75% by weight reinforcing material containing 00% by weight fiberglass (E-glass, OWENS CORNING)

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
• Golf Clubs (AREA)
• Reinforcement Elements For Buildings (AREA)
• Rod-Shaped Construction Members (AREA)
• Reinforced Plastic Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=44146959

Family Applications (1)

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Family Cites Families (5)

• 2010
  • 2010-01-06 CZ CZ20100007A patent/CZ20107A3/cs unknown
• 2011
  • 2011-01-06 SK SK99-2012U patent/SK6912Y1/sk unknown
  • 2011-01-06 EP EP11713659A patent/EP2536474A2/de not_active Withdrawn
  • 2011-01-06 HR HRP20120636AA patent/HRPK20120636B3/hr not_active IP Right Cessation
  • 2011-01-06 WO PCT/CZ2011/000002 patent/WO2011082701A2/en not_active Ceased
  • 2011-01-06 SK SK57-2012A patent/SK572012A3/sk unknown

Non-Patent Citations (1)

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