公开(公告)号：US3703290A

公开(公告)日：1972-11-21

申请号：US3703290D

申请日：1971-03-08

Applicant: ALUMINUM CO OF AMERICA

Inventor： WILSON RICHARD C

IPC: A63B59/06

CPC classification number: A63B59/50 ,  A63B2102/18 ,  Y10S273/02 ,  Y10S273/05

Abstract: An end plug for a hollow ball bat. The end plug has a substantially rigid inner plug member and a resiliently compressible outer plug member secured to the inner member. The outer plug member has a periphery provided with a generally cylindrical lower portion and an upper portion separated from the lower portion by an outwardly open annular recess. The inner plug member has a generally radially outwardly directed stabilizer portion which extends radially outwardly at least to a position adjacent to the periphery of the outer plug member. The outwardly directed stabilizer portion of the inner plug member may be divided into a plurality of individual stabilizer segments and may be provided with underlying reinforcing members. A hollow ball bat having a generally cylindrical barrel portion and a generally cylindrical handle portion. At least one of the barrel and handle portions terminating in an open end provided with a transversely inwardly directed flange which is engaged within the annular recess of the end plug to provide an effective mechanical joint between the bat and the end plug. The composite end plug serves to provide both sound and vibration deadening means and integral structural reinforcing means resisting relative axial movement between the end plug and the ball bat.

Abstract translation: 一个中空球棒的端塞。 端塞具有基本刚性的内塞构件和固定到内构件的可弹性压缩的外塞构件。 外插头构件具有设置有大致圆柱形的下部的外围和通过向外开口的环形凹部与下部分离的上部。 内塞构件具有大致径向向外指向的稳定器部分，其至少延伸至与外塞构件周边相邻的位置径向向外延伸。 内塞构件的向外指向的稳定器部分可以被分成多个单独的稳定器段，并且可以设置有下面的加强构件。