)The anchor plate 14 essentially comprises a rigid sheet of material having a flat, planar center portion and a polygonal periphery with a plurality of downwardly turned edges 18 extending therefrom. Again, the use of a permanently buried component is unacceptable in many areas, thus precluding use of the Hall bases in those areas. In contrast, the downwardly turned edges of the underlying plate of the present safety base, do not penetrate the ground significantly and allow the base to be displaced when a horizontal force is applied thereto.U.S. The base is temporarily secured to the permanently installed ground component by means of the magnetic attraction developed between the magnets of the ground component and the ferrous metal inserts of the base attachment plate. The safety base must provide reasonably firm anchorage for the base when generally vertical pressure is applied thereto, as when a S runner steps on and rounds a base without sliding, but yet must also readily give way when a hard horizontal force is applied to the base, as when a runner slides hard into a base. Impossible d'ajouter l'article à votre liste. The result is somewhat like the assembly of the '768 U.S. Patent to Hall, discussed further above. These edges engage the underlying surface to a slight extent, to anchor the base unless the base is struck by a substantial horizontal impact as by a sliding base runner. 1 and 3, allows the plate 14, 14a to be made larger, with the edges 18, 18a extending essentially the entire length of the sides of the base 12 in order to grip the underlying surface better.While the plates 14 through 14c of FIGS.

614,881 issued on Feb. 21, 1961 to Herbert W. Henry, titled "Base Sack Anchorage Means," describes a permanently anchored component which is imbedded in the ground, with a base component which is movably secured to the anchored component. Nous nous efforçons de protéger votre sécurité et votre vie privée. The resulting assembly allows some limited movement of the base if the base is struck by a hard horizontal force (e.g., runner sliding into the base). It is not a product of a systematic review. 5 and 6 illustrate additional polygonal shapes which might be used to form the safety plate base attachment of the present invention. The first component is formed of sheet metal, and includes downwardly and outwardly extending edges.

5,564,695 issued on Oct. 15, 1996 to Arthur E. Christensen, titled "Break-Away Base," describes an assembly having two separable components. This Position Statement was developed as an educational tool based on the opinion of the authors.

Questions et réponses des clients Votre demande a rencontré un problème.

Merci de réessayer plus tard. This component is buried in the ground with its upper surface substantially level with the ground, and a spike is used to anchor the device more securely.

The lower anchor portion essentially comprises a plate formed of metal or other suitable material, with the plate having a plurality of downwardly bent edges. 1 through 6, the depending edges 18 through 18c are substantially normal to the center portion of the plate, being bent downwardly to about 90 degrees. The walls of these depressions D resist any relatively slight horizontal force component developed by generally vertical downward forces V, even if there is some slight horizontal component to the generally vertical forces V.However, in the event that generally or substantially horizontal forces H (indicated by the broken line arrows of FIG. 3 is an elevation view in section of the base and anchor plate of the present invention, generally showing the forces required to dislodge the assembly from the underlying surface.FIG.

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