摘要:
A golf ball particularly suitable for use in playing a game of compact golf is disclosed. The golf ball comprises an inner core of resilient rubber and an outer cover made of SURLYN. The rubber is a halobutyl polymer containing defined amounts of carbon black. The ball gives a diminished rebound off a wall when compared with a traditional golf ball which makes it suitable for use on golf courses of reduced scale.
摘要:
A mini-golf course wherein golf similar to a formal golf can be played in an area smaller than a formal golf course. The mini-golf course is constituted of a plurality of tee grounds and a plurality of putting greens having holes corresponding to the tee grounds. In each of respective golf courses, there are a long course, a middle course and a short course. Each of the courses can be used as an out-course, an in-course or a center course a plurality of times. Golf balls are formed so as to have shorter flying distances. Score cards each have score write-in columns corresponding to reference stroke count columns, and, a plurality of score write-in columns are provided so that each of the courses can be used as an out-course, in-course or center course.
摘要:
Hollow tennis balls (A) comprise a hollow spherical core (3) of rubber composition and felt (1) covering the hollow spherical core (3), wherein physical properties of the spherical core (3) such as forward deformation, return deformation and rebound are differed corresponding to the skill, physical constitution, physical strength and athletic ability of players.
摘要:
A golf ball having a soft outer surface coating having a hardness less than about HB on the ASTM D3363 scale, or less than about 40 on ASTM D2134 scale. The soft outer surface coating may contain polyurethane, a hydroxyl functional silicone material, or a hydroxyl functional fluoro material. Also, a method for making the golf ball. The golf ball having the soft outer surface coating exhibits a high spin rate over short shots essentially without degrading performance on driver shots, as compared with the performance of the uncoated golf ball.
摘要:
Non-standard sport projectiles (10), in accordance with this invention, include at least one linear through hole (11). As this non-standard sport projectile (10) passes through the air, after being hit by, for example, a golf club, the non-standard sport projectile (10) spins. When the above-mentioned through hole (11) is generally aligned with the projectile's direction of flight, air passes through the through hole, and the aerodynamic characteristics of the non-standard sport projectile (10) are enhanced. When the through hole (11) is not aligned with the projectiles direction of flight the aerodynamic characteristics are reduced. As a result, the non-standard sport projectile (10) experiences rapidly repeating intervals of relatively high aerodynamic flight and relatively low aerodynamic flight as the non-standard sport projectile (10) spins around the center cross section of the through hole (11).
摘要:
A playground golf course with an artificial turf (3), the greens of which are formed by disposing a thin resilient urethane foam layer (9) below the artificial turf (3) so as to reduce golf ball bounce and hence roll on the artificial turf (3). Greens are formed by disposing a polyethylene buffer (8) below the thin layer (9) and disposing a green boundary edge member (4) composed of an artificial turf belt member (10) around the artificial turf. Greens are also formed by tensioning predetermined portions in the vicinity of the periphery of the artificial turf (3) with springs (6). The playground golf course is formed by disposing a plurality of greens formed in such a manner in an existing athletic facility. The playground golf course is composed of the greens, a golf club (56) with two club heads (57,58) formed at both ends of a shaft, a golf ball (71) with reduced flight characteristics, and a golf tee (81) that allows players to easily hit golf balls.
摘要:
A golf ball (70,76) for miniature golf links is formed of a three layer structure; a surface part (70a, 76a), intermediate part (70b,76b) and core (70c,76c). The surface part (70a,76a) is made of the same composite of rubber and filler as a formal golf ball. The intermediate part (70b,76b) is made of a softer material than the surface part (70a,76a). The core (70c,76c) may be solid or hollow. Various types of concave or convex structures may be formed on the surface of the ball.
摘要:
A child's play ball constituted by an outer casing (10) and an inner inflatable bladder (11). The outer casing (10) is formed by contoured segments (10A, 10B, 10C) of high strength, non-stretchable fabric material stitched together to define, when the casing is fully expanded, a play ball of the desired shape and size, such as a football or soccer ball. The inner bladder (11) is a conventional rubber balloon whose stem (14) initially projects through an opening in the casing which is provided with a closure (13). The stem (14), after the balloon is inflated with air so that it conforms to the casing (10), is then tied to retain the air, the tied stem (14) being concealed within the casing (10) by the closure (15). The maximum safe diameter of the inflated balloon which is well below the diameter at which the balloon is close to its bursting point, is approximately equal to the maximum dimension of the expanded casing whereby the encased balloon has exceptional strength and the play ball may be subjected to rough handling.