Dual-purpose baseball hitting trainer

摘要

A baseball hitting trainer comprises a supportive cup, an upper pipe, a lower pipe, an upper sleeve, a lower sleeve, an resilient piece connected between the upper sleeve and the lower sleeve, a locking device for locking the upper sleeve with the resilient piece to the lower pipe, a base fixed to the lower sleeve, a weight block, and a fastening ferrule, wherein the lower pipe is allowed to be inserted through the central through hole of the weight block, and the fastening ferrule is fitted around the lower pipe to fasten the weight block onto the lower pipe, whereby the hitting trainer can provide two modes of operation. Under the swing mode, the weight block can be positioned at various heights by adjusting the weight block along the lower pipe to have the hitting trainer swung at various frequencies and speeds, at which a hitter wishes to practice a hitting.

主权项

1. In a ball hitting trainer of the type including a supportive cup for holding a ball, an upper pipe, a lower pipe telescopically connected with the upper pipe, an upper sleeve, a lower sleeve, a resilient piece connected between the upper sleeve and the lower sleeve, a locking device for locking the upper sleeve with the resilient piece on the lower pipe, and a base attached to the lower sleeve, wherein the improvement comprises:
a weight block defining a tubular central through hole, the weight block slidably positioned on the lower pipe, wherein the central through hole is cone shaped and includes an upper opening and a lower opening, the upper opening having a dimension substantially the same as the outside diameter of the lower pipe, and the lower opening having a dimension greater than the upper opening, wherein the lower pipe is slidably received in the central through hole of the weight block; and a fastening ferrule, having a tubular configuration including a central bore that is slidably positioned on the lower pipe and further comprising a plurality of flexible pieces extending therefrom, the flexible pieces slidably received in the lower opening of the central through hole of the weight block, thereby fastening the weight block to the lower pipe; whereby the tubular weight block is adjustably positioned at various heights by adjusting the weight block and the fastening ferrule along the length of the lower pipe to allow the hitting trainer to be swung at various frequencies and speeds, at which a hitter wishes to practice a hitting.