| 摘要 |
<p>With reference to Figs. 1a-1c, the method includes the forming of a linearly expansible pre-strung web (10) having a plurality of rows of diamond shaped interstices (12), and then stretching the web (10) row-by-row along a linear axis of expansion by starting with the innermost rows of the web (10) and proceeding symmetrically outwardly to the outermost rows of said web (10). As a final step, the linearly expanded web is laced to the head (36) of a racquet (38) (see Fig. 2). Referring more particularly now to Fig. 2, an apparatus for accomplishing the above method is characterized by an elongated base (28) supporting a pair of carriages (30/32) for reciprocal, colinear movement. A plurality of expansion bars (34a-34f) are supported by the base between the carriages to stretch the web row-by-row away from a central axis. Links (58-64) are provided to selectively couple the stretcher bars to the carriages.</p> |
