EP0109087A1 - Spannvorrichtung - Google Patents

Spannvorrichtung Download PDF

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Publication number
EP0109087A1
EP0109087A1 EP83111403A EP83111403A EP0109087A1 EP 0109087 A1 EP0109087 A1 EP 0109087A1 EP 83111403 A EP83111403 A EP 83111403A EP 83111403 A EP83111403 A EP 83111403A EP 0109087 A1 EP0109087 A1 EP 0109087A1
Authority
EP
European Patent Office
Prior art keywords
string
racket
disc
cylinder
support member
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.)
Withdrawn
Application number
EP83111403A
Other languages
English (en)
French (fr)
Inventor
Philipp Friedrich Wilhelm Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0109087A1 publication Critical patent/EP0109087A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/12—Devices arranged in or on the racket for adjusting the tension of the strings

Definitions

  • the present invention relates to string tensioning devices.
  • the invention relates to string tensioning devices for stringed rackets.
  • a problem with stringed rackets is that the strings, after some time, become slack and have to be retensioned. Normally the strings are removed and new strings are provided.
  • stringed racket or “racket” is to be understood to include any type of racket provided with strings, such as for playing tennis, squash, badminton or any other racket game.
  • the abutment member may be in the form of an internally threaded cylinder being adapted to abut with one end against a racket frame
  • the string support member may be in the form of a cooperating externally threaded disc having a location formation for locating a string to be tensioned, the cylinder being adapted to be rotated relatively to the disc for moving it towards or away from the racket frame.
  • the cylinder may be closed at its end opposite to its end adapted to abut against a racket frame.
  • the location formation of the disc may include opposite cut-outs on the disc edge for receiving a string and allowing it to be located firmly on the disc.
  • the cylinder may have a hole for receiving a lever for rotating the cylinder relative to the disc.
  • the invention also extends to a racket provided with a number of string tensioning devices as set out herein.
  • the tennis racket 10 has a frame 12 which comprises a handle 14 with a gripping end 16 and an oval shaped stringed frame part 18.
  • the part 18 is provided with strings 20.
  • the device as illustrated in Figure 2 to 7 is provided for tensioning strings in the region indicated by reference numerals 22 and 24.
  • the device also can be used for tensioning strings in any other regions.
  • the tensioning devices can be provided on the racket frame in the region between the forks or the V-legs.
  • the tensioning device 26 includes an abutment member in the form of a tension cylinder 28 which is closed at one end 30 and which is open at the opposite end 32. It is screw threaded internally. It furthermore has an adjustment hole 34, the function of which will be described later.
  • the closed end 30 of the cylinder 28 is provided with a marking line 36.
  • the device further includes a string support member in the form of a tension disc 38.
  • the disc 38- has a smooth domeshaped recess 40 so that a circumferential wall 42 is defined.
  • the wall 42 is threaded on its circumference 44. It is provided with two opposite cutouts 46 and 48 and a marking cutout 50.
  • the marking 50 indicates the beginning of the thread on the wall 42.
  • the string which is to be tensioned and which is indicated by reference numeral 52 in Figure 2, passes through the frame 18 as shown in Figure 2 and fits into the cutouts 46, 48 to lie on the domeshaped recess 40.
  • This tool 54 includes a handle 56 with a pin 58 and a locking projection 60 attached thereto.
  • the pin 58 is inserted into the hole 34 and then the tool 54 is used to rotate the cylinder 28.
  • the tension disc 38 will turn towards or away from the frame 18 and thereby vary the tension of the string 52 by slackening or tightening it.
  • the device 26 preferably is made of very light material, such as aluminium.
  • Any number of devices 26 can be provided on a frame 18 as may be required.
  • the marking 36 on the closed end 30 of the cylinder 28 is used to indicate the beginning of the thread inside the cylinder 28 and also to note the number of turns made for tensioning purposes.
  • a racket frame 18 In use a racket frame 18, when being stringed, will be provided with a number of tension discs 38 over each of which a string passes. These will be placed with their marking cut-outs 46 all facing in the same direction.
  • a tension cylinder 28 When the frame 18 has been stringed fully, a tension cylinder 28 will be turned onto each disc 28. To do so, the marking 36 will be placed in allignment with the marking 46 of the appropriate disc 38 and then the cylinder 28 will be turned so that the disc 38 is "lifted” or “moved” away from the frame 18 until the correct tension has been obtained. This procedure will be repeated with all devices 26. It must be noted that although only longitudinal strings, ie. those parallel to the handle, are suggested to be tensioned, in doing so also transverse strings will automatically be tensioned.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Stringed Musical Instruments (AREA)
EP83111403A 1982-11-16 1983-11-15 Spannvorrichtung Withdrawn EP0109087A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA828403 1982-11-16
ZA828403 1982-11-16

Publications (1)

Publication Number Publication Date
EP0109087A1 true EP0109087A1 (de) 1984-05-23

Family

ID=25576372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111403A Withdrawn EP0109087A1 (de) 1982-11-16 1983-11-15 Spannvorrichtung

Country Status (2)

Country Link
EP (1) EP0109087A1 (de)
AU (1) AU2137383A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231591A3 (en) * 1985-10-28 1987-08-26 Fin Sports Limited A tensioning device for a strung racquet
US6506133B1 (en) * 2002-01-07 2003-01-14 Arthur Hong Racket with apparatus for enhancing elasticity of network

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818152A1 (de) * 1988-05-28 1989-12-07 Stabilus Gmbh Tennisschlaeger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559986A (en) * 1925-01-17 1925-11-03 Charles F Quick Tennis racket
FR855446A (fr) * 1939-05-30 1940-05-10 Raquette
US3884467A (en) * 1971-04-07 1975-05-20 Reinhold Sommer Device for hitting a ball, shuttlecock or the like
US4340225A (en) * 1979-04-13 1982-07-20 Wilson Craig R Game racket and apparatus for adjusting the tension in the strings of a game racket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559986A (en) * 1925-01-17 1925-11-03 Charles F Quick Tennis racket
FR855446A (fr) * 1939-05-30 1940-05-10 Raquette
US3884467A (en) * 1971-04-07 1975-05-20 Reinhold Sommer Device for hitting a ball, shuttlecock or the like
US4340225A (en) * 1979-04-13 1982-07-20 Wilson Craig R Game racket and apparatus for adjusting the tension in the strings of a game racket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231591A3 (en) * 1985-10-28 1987-08-26 Fin Sports Limited A tensioning device for a strung racquet
US6506133B1 (en) * 2002-01-07 2003-01-14 Arthur Hong Racket with apparatus for enhancing elasticity of network

Also Published As

Publication number Publication date
AU2137383A (en) 1984-05-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19841116

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860311