Racquets, in particular tennis racquets
AssigneeHead Sportgerate Gesellschaft m.b.H. & Co. OHG
InventorsHelmut Umlauft, Karl-Heinz Wager
Life of this patent
Estimating the term…
Abstract
In a racquet, particularly a tennis racquet, having a handle (8) and a stretcher frame secured via a throat region (2) for stringing in which the cross-section of the stretcher frame measured transversely to the stringing has at least one section of largest dimension, the cross-section (a, b, c) of the stretcher frame in the throat region (2) and in the region of the racquet head (3) remote from the throat region is greater than in the region of the stretcher frame lying therebetween, whereby the cross-section (c) in the region of the racquet head (3) remote from the throat region is greater than the cross-section (b) in the throat region.
Claims17
A tennis racquet, comprising:
- a handle;
- a stretcher frame secured via a throat region to the handle for stringing a racquet head in which the cross-sectional area of the stretcher frame measured transversely to the stringing plane as at least one section of largest dimension, such that the cross-sectional area of the stretcher frame in the throat region and in the region of the racquet head remote from the throat region is greater than in the region of the stretcher frame lying therebetween;
- and
- wherein the cross-sectional area in the region of the racquet head remote from the throat region is greater than the cross-sectional area in the throat region;
- and
- wherein the cross-sectional area of the frame in the throat region is essentially constant.
A tennis racquet, comprising:
- a handle;
- a stretcher frame secured via a throat region to the handle for stringing a racquet head in which the cross-sectional area of the stretcher frame measured transversely to the stringing plane has at least one section of largest dimension, such that the cross-sectional area of the stretcher frame in the throat region and in the region of the racquet head remote from the throat region is greater than in the region of the stretcher frame lying therebetween;
- and
- wherein the cross-sectional area in the region of the racquet head remote from the throat region is greater than the cross-sectional area in the throat region;
- and
- wherein the percentage increase of the cross-sectional area in the region of the racquet head remote from the throat region and in the throat region is directly proportional to the percentage increase in the strung area of the racquet, whereby the percentage increase in the depth, as a function of the strung area of the racquet, in the region of the racquet head remote from the throat region is greater than the percentage increase in depth in the throat region.
A tennis racquet comprising:
- a handle;
- a racquet head secured via a throat to the handle, and having a strung area;
- the racquet head having a region remote from the throat region with a first cross-sectional area and a throat region with a second cross-sectional area, said first and second cross-sectional areas measured transversely to a plane containing the strung area;
- and
- wherein the percentage increase of the cross-sectional area in the region of the racquet head remote from the throat region and in the throat region is directly proportional to the percentage increase in the strung area of the racquet, whereby the percentage increase in the depth, as a function of the strong area of the racquet, in the region of the racquet head remote from the throat region is greater than the percentage increase in the depth in the throat region.
Dependencies are inferred from the claim text.