(57) Abstract (Modified) Objective Without width of the core and increasing number clo - ra width wideAt the same time the ge making the handle part narrow vis-a-vis the clo - ra width, rigidity it is strongAugmentation of the me and the ground contact area and the earth with the upward buckling deformation of the handle partSuppressing the increase of pressure, it does not sink the fuselage and side skid happening is denseIt does to that is and to do can do smooth run. Constitution Non edge band-like rubber body in (1) in every fixed interval coreEmbedding (2), it compensates that core (2) complying with rim sideThe filament in rubber clo - ra (3) embedding, aforementionedCore (2) non edge band-like rubber body (1) in length direction plover conditionProviding, as clo - ra width (W) it makes wide, this cloThe handle part (1b) width (w) it makes narrow - ra width (W) vis-a-visru.
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