Bat structure in a baseball bat
OwnerToyoharu FUKAEinventor
Life of this patent
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Abstract
To provide a bat structure that enables a batter to achieve a system of changing of the grip center position Gc of palm gripping by a bottom hand to Gc1 of palm gripping by bottom hand and a half of upper hands, which leads to move the batting centroids Pc to Pc1. Also, the bat structure is also provided in which by adding a weight ΔM (10˜100 gr) to the bat head H of the bat having the grip structure of the kind referred to above, the batting energy at the sweet spot is improved to enhance the impact having the maximum batting effect together with change of the batting centroids Pc to Pc1.
Claims5
A bat structure which includes a bat head (H), a bat barrel portion (B), a bat throat portion (T), a bat grip portion (G) and a grip end (E), and the bat whole length is less than 86 cm according to the rule and the length of the bat grip portion is 25 to 35% of the bat whole length wherein;
- 1) the grip portion (G) comprises 3 parts extending from the grip end (E) to the bat throat portion (T) and a first part close to the grip end (E) has about half length of the grip portion and a sectional shape perpendicular to a longitudinal axis of the bat, which shape is represented by a generally vertical oval shape all over suited for gripping with palms of a bottom hand and a upper hand, a second part has less than one sixth length of the grip portion and a sectional shape perpendicular to a longitudinal axis of the bat, which shape is gradually changed from a generally vertical oval shape to a generally circle shape suited for gripping with thumb and index fingers of the upper hand and a third part close to the throat portion (T) has a remaining length of the grip portion and a sectional shape perpendicular to a longitudinal axis of the bat, which shape is represented by a generally circle shape.
Dependencies are inferred from the claim text.