| 摘要 |
<p>Markers for aerial targets, also known as clay pigeons, of the type which shatter when hit by one or more pellets are described. The marker may comprise a ring of resilient material having a wall adapted to engage outwardly the rim of a standard clay pigeon target. The marker may take the form of a dished disk having an upwardly curving central portion which fits into the underside of a clay pigeon target and an upwardly directed wall which has an internal diameter substantially the same as the outer rim of such a target or it may take the form of a simple annulus having inner and outer upwardly directed walls which engage the lower rim of the target and are maintained in position by frictional contact between the walls and the rim. The wall of the marker engaging outwardly the rim of a clay pigeon target may carry a series of incisions or is formed as a castellated ring. In an alternative embodiment the marker may comprise a central disc-shaped core carrying a plurality of legs directed outwardly with feet adapted to engage the rim of a standard clay pigeon target by frictional and/or adhesive forces. The markers are constructed from a material with sufficient resilience to engage the rim of the target and which does not shatter such as a synthetic resin polymer or a composition based thereon. A preferred synthetic resin is high impact polystyrene which may be painted or pigmented with a distinctive colour. The marker is formed by moulding or vacuum forming from sheet prferably having a thickness in the range 0.25 to 0.75 mm. Alternatively the marker may be formed by dipping or spraying a mould or a clay pigeon target with a solution, dispersion or other liquid mixture containing the synthetic resin. <IMAGE></p> |
