CA1307303C - Method for stringing a game racket with vertical and diagonal sets of strings and strung racket - Google Patents
Method for stringing a game racket with vertical and diagonal sets of strings and strung racketInfo
- Publication number
- CA1307303C CA1307303C CA000509988A CA509988A CA1307303C CA 1307303 C CA1307303 C CA 1307303C CA 000509988 A CA000509988 A CA 000509988A CA 509988 A CA509988 A CA 509988A CA 1307303 C CA1307303 C CA 1307303C
- Authority
- CA
- Canada
- Prior art keywords
- string
- sections
- frame
- diagonal
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
Abstract A method of stringing a handled game racket with three sets of string sections using a length of string. A
set of vertical string sections substantially parallel to the handle is started with a length of the string by stringing a portion of the head starting with the longer string sections.
Upon reaching shorter string sections the same length is employed to create an initial number of string sections in a first set of diagonal sections. Another length of the string is used to complete the vertical string sections and start a second diagonal set. Finally, the string length that is used to create the initial string sections in one diagonal set is used to finish the other diagonal set. The racket frame has a plurality of holes positioned along the frame to support the string sections. The string portion used to form the part of each diagonal set is passed by a plurality of holes to form part of the other diagonal set. More or less, corres-ponding diagonals in opposite directions are alternatively threaded thereon.
set of vertical string sections substantially parallel to the handle is started with a length of the string by stringing a portion of the head starting with the longer string sections.
Upon reaching shorter string sections the same length is employed to create an initial number of string sections in a first set of diagonal sections. Another length of the string is used to complete the vertical string sections and start a second diagonal set. Finally, the string length that is used to create the initial string sections in one diagonal set is used to finish the other diagonal set. The racket frame has a plurality of holes positioned along the frame to support the string sections. The string portion used to form the part of each diagonal set is passed by a plurality of holes to form part of the other diagonal set. More or less, corres-ponding diagonals in opposite directions are alternatively threaded thereon.
Description
` 1 307~n3 Method for Stringing A Game Racket With Vertical and Diagonal Sets of Strings and Strunq Racket Background of the Invention 1. Area of Invention -This invention relates to game rackets and, in particular, to rackets having three (3) sets of strings and to a method for stringing them.
2. Prior Art Numerous arrangements have been proposed for using diagonal sets of strings in game rackets. For example, British Patent No. 5177 to Nightingale shows two sets of diagonals used with one set of horizontal strings. V.S.
Patent No. 3,917,267 show two sets of diagonals serving as the entire stringing pattern. Other patents have shown - diagonal stringing together with vertical strings such as British Patent No. 224,~64 to Forbes.
Non-uniform spacing and non-parallel string sets are seen in British Patent No. 10,851 to Forrester and U.S.
Patent ~o. 1,687,322 to Claremont.
U.S. Patent No. 4,184,679 to Mishel shows diagonals employed with both horizontal and vertical sets of strings.
Each set of strings is strung with a separate length of string.
Summary of the Invent_on Broadly, the present invention comprises a method of stringing a handled game racket with three (3) sets of string sections using a length of string, prefera~ly an integral length, in which a set of vertical string sections substan-tially parallel to the handle is started with a length of said string by stringing a portion of the head starting with 3 the longer string sections and upon reaching shorter string sections the same length is employed to create an initial ' 1 307~03 number of string sections in a first set of diagonal sections.
Another length of the string is used to complete the vertical string sections and start a second diayonal set. Finally, the string length that is-used to create the initial string sections in one diagonal set is used to finish the other diagonal set. The racket frame has a plurality of holes or other string support means positioned along the frame to support the string sections. The string portion used to form the part of each diagonal set is passed by a plurality of holes or other string supports to form part of the other diagonal set. More or less, corresponding diagonals in opposite directions are alternatively threaded thereon.
It is a feature that one ntegral length of string or a series of connected lengths may be used in this method providing a simple and convenient way of stringing.
It is also a feature that this method may be used on a variety of game rackets including round, oval and other shaped frames.
Brief Description of the Drawings F~g. l is a partial front elevational view of the game racket strung in accordance with the present invention;
Fig. 2 is a similar elevational view with right verticals strung;
Fig. 3 is a similar elevational view with all verti-cals completed and the first string section of a set of diagonals being threaded;
Figs. 4-6 are similar elevational views with addi-tional diagor.al string sections completed Fig. 7 is an enlarged view of a portion of the stringing of Fig. l showing the string weave; and Fig. 8, shows a view similar to Fig. 7, with an alternative weave.
1 3073n:~
Description of a Preferred Embodiment Referring to Fig. 1, tennis racket 10 includes frame 11 and handle 12. The racket is strung with a length of string to form three (3) sets of string sections; a vertical set of strings (which are substantial'ly parallel to the handle 12) a diagonal set of strings-A and a second set of diagonal strings B. Forty-eight holes lL-24L and lR-24R are formed in frame ll suitably spaced to position the vertical and diagonal sets as shown and hereinafter described. Holes lL-24L and lR-24R are tubular passage holes.
Each hole is non-uniformly spaced along the frame 11 to pro-vide the pattern shown and each hole is generally radially oriented with respect to the frame. The spacing of the holes - is selected to create the vertical (parallel to handle 12) sections and the sets of diagonals as shown in the drawings in which the diagonal strings intersect midway between the vertical strings. Other types of supporting string means such as hoo~s, loops or grooves may be used. When holes in the frame are used, the position of the ends of string sections are determined by the location of the outlets of holes along the interior of frame.
Referring now to Figs. 2-6, a length of string (S) is strung to form the long~r verticals in the center (VCs).
After forming the two (2) center verticals (VCs), string portion 17 of string (S) is thereafter strung to complete the right vertical string sections VRl, VR2, etc. In Fig.
~ 2 string portion 17 is shown strung to complete six (6) right verticals (VC and VRl 5) while string portion 18 has not yet been strung to form the left vertical sections. Preferably string portions 17 and 18 are of approximately the same length before stringing begins.
"`` 1 30~3n3 Turning to Figs. 3 and 4, center diagonals AC and BC are shown being formed with lengths of string portions 17 and 18, respectively. ~iagonal AC appears as a solid line because it passes in front of (over) the vertical lengths while diagonal BC appears as a dashed line because it passes behind (under) the vertical sections. B diagonals pass in front of A diagonals (see Fig. 7) or, in an alternative embodiment, A diagonals may pass in front of B diagonals (see Fig. 8). Additional string sections, AUl luPper 1), AU2, etc. and BUl, BU2, etc. are thereafter alternatively formed to commence completion of the upper diagonal groups (see Fig. 5).
Upon completion of AUl-AU6 from a length of string portion 17, portion 17 is further strung through hole lOL
to provide BLl (lower 1) and successive BL string sections to complete the B set of diagonals. Likewise, upon comple-tion of BUl-BU6, string portion 18 is then strung through hole lOR to form diagonals ALl and with further threading AL2-7 to complete the A set of diagonals. The preferred stringing pattern is to string one diagonal in set A and then a corresponding diagonal in set B so that the tension forces applied to the frame are substantially balanced.
This balancing of forces prevents distortion of the frame thus maintaining its integrity. If desired the lower A string sections and lower B string sections may be strung before the upper A or B string sections.
Turning again to Fig. 6, it is seen that string portion 17 upon completion of AU6 at hole 6L is then caused to by-pass holes 7L, 8L and 9L (see Fig. 1) before it is threaded through lOL to form string section BLl. String portion 17 is shown in dashed line in Fig. 6 as it resides in a recess in frame 11. It is seen that strinq portion 17 .
by-passes holes 7L, 8L and 9L in that it does not form any string sections from ~with respect to) such holes. String 18 is similarly threaded.
In alternative embodiments of the invention, the string sections (V) may be strung at a.n angle to the handle such as a ninety degree ~90) angle (see handle 12'; Fig. 4).
In these embodiments, the parallel set of strings oriented at such angle to the handle are threaded in any desired sequence including shorter string sections before longer string sections and including, where all such sections are of equal length, the threading of sections further from the frame before the sections closerto the frame.
Patent No. 3,917,267 show two sets of diagonals serving as the entire stringing pattern. Other patents have shown - diagonal stringing together with vertical strings such as British Patent No. 224,~64 to Forbes.
Non-uniform spacing and non-parallel string sets are seen in British Patent No. 10,851 to Forrester and U.S.
Patent ~o. 1,687,322 to Claremont.
U.S. Patent No. 4,184,679 to Mishel shows diagonals employed with both horizontal and vertical sets of strings.
Each set of strings is strung with a separate length of string.
Summary of the Invent_on Broadly, the present invention comprises a method of stringing a handled game racket with three (3) sets of string sections using a length of string, prefera~ly an integral length, in which a set of vertical string sections substan-tially parallel to the handle is started with a length of said string by stringing a portion of the head starting with 3 the longer string sections and upon reaching shorter string sections the same length is employed to create an initial ' 1 307~03 number of string sections in a first set of diagonal sections.
Another length of the string is used to complete the vertical string sections and start a second diayonal set. Finally, the string length that is-used to create the initial string sections in one diagonal set is used to finish the other diagonal set. The racket frame has a plurality of holes or other string support means positioned along the frame to support the string sections. The string portion used to form the part of each diagonal set is passed by a plurality of holes or other string supports to form part of the other diagonal set. More or less, corresponding diagonals in opposite directions are alternatively threaded thereon.
It is a feature that one ntegral length of string or a series of connected lengths may be used in this method providing a simple and convenient way of stringing.
It is also a feature that this method may be used on a variety of game rackets including round, oval and other shaped frames.
Brief Description of the Drawings F~g. l is a partial front elevational view of the game racket strung in accordance with the present invention;
Fig. 2 is a similar elevational view with right verticals strung;
Fig. 3 is a similar elevational view with all verti-cals completed and the first string section of a set of diagonals being threaded;
Figs. 4-6 are similar elevational views with addi-tional diagor.al string sections completed Fig. 7 is an enlarged view of a portion of the stringing of Fig. l showing the string weave; and Fig. 8, shows a view similar to Fig. 7, with an alternative weave.
1 3073n:~
Description of a Preferred Embodiment Referring to Fig. 1, tennis racket 10 includes frame 11 and handle 12. The racket is strung with a length of string to form three (3) sets of string sections; a vertical set of strings (which are substantial'ly parallel to the handle 12) a diagonal set of strings-A and a second set of diagonal strings B. Forty-eight holes lL-24L and lR-24R are formed in frame ll suitably spaced to position the vertical and diagonal sets as shown and hereinafter described. Holes lL-24L and lR-24R are tubular passage holes.
Each hole is non-uniformly spaced along the frame 11 to pro-vide the pattern shown and each hole is generally radially oriented with respect to the frame. The spacing of the holes - is selected to create the vertical (parallel to handle 12) sections and the sets of diagonals as shown in the drawings in which the diagonal strings intersect midway between the vertical strings. Other types of supporting string means such as hoo~s, loops or grooves may be used. When holes in the frame are used, the position of the ends of string sections are determined by the location of the outlets of holes along the interior of frame.
Referring now to Figs. 2-6, a length of string (S) is strung to form the long~r verticals in the center (VCs).
After forming the two (2) center verticals (VCs), string portion 17 of string (S) is thereafter strung to complete the right vertical string sections VRl, VR2, etc. In Fig.
~ 2 string portion 17 is shown strung to complete six (6) right verticals (VC and VRl 5) while string portion 18 has not yet been strung to form the left vertical sections. Preferably string portions 17 and 18 are of approximately the same length before stringing begins.
"`` 1 30~3n3 Turning to Figs. 3 and 4, center diagonals AC and BC are shown being formed with lengths of string portions 17 and 18, respectively. ~iagonal AC appears as a solid line because it passes in front of (over) the vertical lengths while diagonal BC appears as a dashed line because it passes behind (under) the vertical sections. B diagonals pass in front of A diagonals (see Fig. 7) or, in an alternative embodiment, A diagonals may pass in front of B diagonals (see Fig. 8). Additional string sections, AUl luPper 1), AU2, etc. and BUl, BU2, etc. are thereafter alternatively formed to commence completion of the upper diagonal groups (see Fig. 5).
Upon completion of AUl-AU6 from a length of string portion 17, portion 17 is further strung through hole lOL
to provide BLl (lower 1) and successive BL string sections to complete the B set of diagonals. Likewise, upon comple-tion of BUl-BU6, string portion 18 is then strung through hole lOR to form diagonals ALl and with further threading AL2-7 to complete the A set of diagonals. The preferred stringing pattern is to string one diagonal in set A and then a corresponding diagonal in set B so that the tension forces applied to the frame are substantially balanced.
This balancing of forces prevents distortion of the frame thus maintaining its integrity. If desired the lower A string sections and lower B string sections may be strung before the upper A or B string sections.
Turning again to Fig. 6, it is seen that string portion 17 upon completion of AU6 at hole 6L is then caused to by-pass holes 7L, 8L and 9L (see Fig. 1) before it is threaded through lOL to form string section BLl. String portion 17 is shown in dashed line in Fig. 6 as it resides in a recess in frame 11. It is seen that strinq portion 17 .
by-passes holes 7L, 8L and 9L in that it does not form any string sections from ~with respect to) such holes. String 18 is similarly threaded.
In alternative embodiments of the invention, the string sections (V) may be strung at a.n angle to the handle such as a ninety degree ~90) angle (see handle 12'; Fig. 4).
In these embodiments, the parallel set of strings oriented at such angle to the handle are threaded in any desired sequence including shorter string sections before longer string sections and including, where all such sections are of equal length, the threading of sections further from the frame before the sections closerto the frame.
Claims (9)
1. A method of stringing a racket having a frame and a handle wherein the frame is so shaped that strings substantially parallel to the handle are longer in the central area of the frame and shorter in the side areas of the frame comprising i) placing a plurality of spaced-apart string support means along the frame at selected positions;
ii) passing the first portion of a length of string, which has two portions, back and forth through said string support means to form a series of vertical string sections substantially parallel to the handle on one side of the frame, the larger vertical string sections being formed before the shorter string sections;
iii) passing a length of the second portion of the string through other string support means on the other side of the frame to form further vertical string sections in like manner;
iv) passing a length of the first string portion diagonally from a point adjacent to an end of a short vertical string section to commence forming a first set of diagonal string sections and thereafter passing the length of string to form additional string sections in said first set;
v) threading a length of the second portion of string to form a second set of diagonal string sections in like manner, said string sections of said second set crossing over those of the first set;
vi) causing a length of the first string portion, to pass by a plurality of string support means along the frame and then through a string support means to thereafter permit completion of the second set of diagonals; and vii) causing a length of the second string portion to similarly pass a plurality of string support means along the frame and then through string support means to thereafter permit completion of the first set of diagonals.
ii) passing the first portion of a length of string, which has two portions, back and forth through said string support means to form a series of vertical string sections substantially parallel to the handle on one side of the frame, the larger vertical string sections being formed before the shorter string sections;
iii) passing a length of the second portion of the string through other string support means on the other side of the frame to form further vertical string sections in like manner;
iv) passing a length of the first string portion diagonally from a point adjacent to an end of a short vertical string section to commence forming a first set of diagonal string sections and thereafter passing the length of string to form additional string sections in said first set;
v) threading a length of the second portion of string to form a second set of diagonal string sections in like manner, said string sections of said second set crossing over those of the first set;
vi) causing a length of the first string portion, to pass by a plurality of string support means along the frame and then through a string support means to thereafter permit completion of the second set of diagonals; and vii) causing a length of the second string portion to similarly pass a plurality of string support means along the frame and then through string support means to thereafter permit completion of the first set of diagonals.
2. The method claim 1 in which about three (3) string support means are passed by as stringing from the first set of diagonals to the second set of diagonals is accomplished.
3. The method of claim 1 in which the two string portions are integrally formed.
4. The method of claim 1 in which each length of each string portion is integrally formed.
5. The method of claim 1 in which the first set of diagonal string sections is positioned under the string sections of the second diagonal set; in which the first set of diagonal string sections are positioned over the vertical sections and in which the second set of diagonal sections are positioned under the vertical string sections.
6. The method of claim 1 in which the first set of diagonal string sections is positioned over the string sections of such second diagonal set; in which the first set of diagonal sections are positioned under the vertical sections and in which the second set of diagonal sections are positioned over the vertical string sections.
7. The method of claim 1 in which string sections are formed in the two diagonal sets in an alternative pattern in that string sections are formed first in one set and then in another set to prevent distortion and maintain integrity of the frame.
8. A strung game racket having a frame with a handle in which the frame is shaped to hold vertical string sections which are oriented substantially parallel to the handle with longer sections positioned in the central area of the frame carries a plurality of spaced-apart string support means and in which the stringing has a single length of string having two portions, and wherein:-i) a part of a first portion of the length of string forms a series of vertical string sections on one side of the frame substantially parallel to the handle;
ii) a part of the second portion of the string length forms further vertical string sections in like manner;
iii) a further part of the first string portion passes diagonally from a point adjacent to an end of a short vertical string section to the end of a first diagonal string and adjacent diagonals on one side of the first formed diagonal string form part of a first set of diagonals;
iv) a further part of the second portion of string forms part of a second set of diagonal strings in like manner said second set crossing the diagonals of the first set;
v) a yet further part of the first string portion passes by a plurality of string support means along the frame and then passes through further string support means and forms another part of the second set of diagonals; and vi) a yet further part of the second string portion passes by a plurality of string support means along the frame and then passes through further string support means and forms another part of the first set of diagonals;
ii) a part of the second portion of the string length forms further vertical string sections in like manner;
iii) a further part of the first string portion passes diagonally from a point adjacent to an end of a short vertical string section to the end of a first diagonal string and adjacent diagonals on one side of the first formed diagonal string form part of a first set of diagonals;
iv) a further part of the second portion of string forms part of a second set of diagonal strings in like manner said second set crossing the diagonals of the first set;
v) a yet further part of the first string portion passes by a plurality of string support means along the frame and then passes through further string support means and forms another part of the second set of diagonals; and vi) a yet further part of the second string portion passes by a plurality of string support means along the frame and then passes through further string support means and forms another part of the first set of diagonals;
9. A method of stringing a racket having a frame and a handle and a set of parallel strings oriented with respect to the handle and two (2) sets of diagonals comprising i) placing a plurality of spaced-apart string support means along the frame at selected positions;
ii) passing the first portion of a length of string, which has two portions, back and forth through said string support means to form a series of vertical string sections substantially parallel to the handle on one side of the frame, the larger vertical string sections being formed before the shorter string sections;
iii) passing a length of the second portion of the string through other string support means on the other side of the frame to form further parallel string sections in like manner;
iv) passing a length of the first string portion diagonally from a point adjacent to an end of a parallel string section to commence forming a first set of diagonal string sections and thereafter passing the length of string to form additional string sections in said first set;
v) threading a length of the second portion of string to form a second set of diagonal string sections in like manner said string section of said second set crossing over those of the first set;
vi) causing a length of the first string portion, to pass by a plurality of string support means along the frame and then through a string support means to thereafter permit completion of the second set of diagonals; and vii) causing a length of the second string portion to similarly pass a plurality of string support means along the frame and then through string support means to thereafter permit completion of the first set of diagonals.
ii) passing the first portion of a length of string, which has two portions, back and forth through said string support means to form a series of vertical string sections substantially parallel to the handle on one side of the frame, the larger vertical string sections being formed before the shorter string sections;
iii) passing a length of the second portion of the string through other string support means on the other side of the frame to form further parallel string sections in like manner;
iv) passing a length of the first string portion diagonally from a point adjacent to an end of a parallel string section to commence forming a first set of diagonal string sections and thereafter passing the length of string to form additional string sections in said first set;
v) threading a length of the second portion of string to form a second set of diagonal string sections in like manner said string section of said second set crossing over those of the first set;
vi) causing a length of the first string portion, to pass by a plurality of string support means along the frame and then through a string support means to thereafter permit completion of the second set of diagonals; and vii) causing a length of the second string portion to similarly pass a plurality of string support means along the frame and then through string support means to thereafter permit completion of the first set of diagonals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000509988A CA1307303C (en) | 1986-05-26 | 1986-05-26 | Method for stringing a game racket with vertical and diagonal sets of strings and strung racket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000509988A CA1307303C (en) | 1986-05-26 | 1986-05-26 | Method for stringing a game racket with vertical and diagonal sets of strings and strung racket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1307303C true CA1307303C (en) | 1992-09-08 |
Family
ID=4133207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000509988A Expired - Lifetime CA1307303C (en) | 1986-05-26 | 1986-05-26 | Method for stringing a game racket with vertical and diagonal sets of strings and strung racket |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1307303C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406059A (en) * | 2003-09-16 | 2005-03-23 | Jonathan William Bennett | A method of stringing a racquet |
-
1986
- 1986-05-26 CA CA000509988A patent/CA1307303C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406059A (en) * | 2003-09-16 | 2005-03-23 | Jonathan William Bennett | A method of stringing a racquet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 19950308 |