Baffle

Impact walls must be installed as a safety measure so that you can not injure yourself if you hit the wall during intensive sports exercises . Impact walls must have protective properties in order to avoid the risk of injury if the athlete comes into contact with the wall.

conditions

Impact walls in a sports hall must meet the ball impact safety according to DIN 18032 . All hall end walls must be designed to reduce force in accordance with the guidelines of DIN 58125 and the accident prevention regulations of the statutory accident insurance in Germany, as well as being completely flat in accordance with DIN 18032.

Impact walls must have a protective function, a sports function and material properties. It is important to fulfill the protective function , these are properties that are intended to reduce the risk of injury. Among the sports functions include the optimum use of the usual sports techniques as exercises in terms of ball rebound. In order to ensure that the impact wall can withstand the expected loads over a longer period of time, the technical properties are required.

Force reduction

Impact walls are used in sports halls with force-reducing properties. The test of the force reduction is carried out on a sample and in the horizontal structure. A vertical athlete was designed to test impact walls in completed sports halls. This enables a shock absorption measurement, which provides conclusions about the suitability test according to DIN 18032.

Ball impact safety

In addition to the protective functional properties, the impact wall must also meet sport-functional properties. It is imperative that ceilings, walls, lamps and panes are safe from ball throwing so that they can be used in sports halls.

The ball throw safety can be determined by a ball gun. A normal handball is used for the test in accordance with DIN 18032 . The cannon is set up in front of the wall so that the ball is shot against the wall at a speed of 80 km / h on impact. The tested object must not show any damage even after thirty shots. In addition to the handball test, wall cladding must also pass a hockey ball at a speed of 60 km / h without damage in order to achieve full ball throw safety. Systems that pass handball bombardment without damage, but fail hockey ball bombardment, are classified as limited ball impact-proof and can be installed in the upper area of halls outside the goal areas.

Types of baffles

Wooden baffle

Impact walls and wall cladding made of wood are mounted on supporting structures made of multiplex material or metal . Visible cladding can be z. B. be installed as multiplex panels with a thickness of 15 to 18 mm, made of birch or beech . MDF material can be used from a thickness of 18 mm, the surface can be colored, veneered or coated with HPL. To ensure stability, it is advisable to use only MDF boards with a density of min. 950 kg / m³ to be used. Spruce three-layer panels with a thickness of 18 mm or solid wood in panel form are also used as cladding material.

In order to reduce the high sound level and the reverberation time , which are often high in sports halls , solid wood panels with effective room acoustics are used as baffle wall cladding, in which a sound absorber material is integrated or deposited and the surface is designed with narrow joints or perforations.

Supporting structures can be made of wood , as a hybrid structure with steel sheet elevations, with wooden battens and steel .

Wooden impact walls are available in elastic and rigid versions. The elastic design with force reduction> = 60% is installed on the front sides of the sports hall up to a height of at least two meters. Rigid wooden impact walls with a force reduction of <60% are installed above two meters.

Glass baffle

Glass impact walls consist of supporting structures in steel or wood and are equipped with point-holding glazing . Doors and window openings can easily be integrated into glass impact walls. It is important to ensure that partial areas are marked so that obstacles can be better perceived. Glass impact walls are also suitable for external facades. To avoid the formation of condensation, ensure that the intermediate structure is well ventilated when used as an attachment facade. A glass baffle can also be designed as a large, openable door.

Textile impact wall

Textile impact walls are point-elastic coverings consisting of a force-reducing foam layer with a textile top layer. These coverings can either be glued directly onto a leveled wall surface or onto a flat wooden cladding. It is possible to incorporate pictograms into textile impact walls.

Wooden baffle
Glass baffle
Textile impact wall