DE3813872C2 - - Google Patents

Info

Publication number
DE3813872C2
DE3813872C2 DE3813872A DE3813872A DE3813872C2 DE 3813872 C2 DE3813872 C2 DE 3813872C2 DE 3813872 A DE3813872 A DE 3813872A DE 3813872 A DE3813872 A DE 3813872A DE 3813872 C2 DE3813872 C2 DE 3813872C2
Authority
DE
Germany
Prior art keywords
frame
plane
deformable
tab
wedge piece
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
Application number
DE3813872A
Other languages
German (de)
English (en)
Other versions
DE3813872A1 (de
Inventor
Friedrich-Wilhelm Von Dr.-Ing. 8720 Schweinfurt De Hackewitz
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
Priority to DE3813872A priority Critical patent/DE3813872A1/de
Priority to US07/342,227 priority patent/US4995608A/en
Priority to DE19893917868 priority patent/DE3917868A1/de
Publication of DE3813872A1 publication Critical patent/DE3813872A1/de
Application granted granted Critical
Publication of DE3813872C2 publication Critical patent/DE3813872C2/de
Granted legal-status Critical Current

Links

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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Golf Clubs (AREA)
DE3813872A 1988-04-25 1988-04-25 Rahmen mit einer unter spannung stehenden besaitung oder dgl. Granted DE3813872A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE3813872A DE3813872A1 (de) 1988-04-25 1988-04-25 Rahmen mit einer unter spannung stehenden besaitung oder dgl.
US07/342,227 US4995608A (en) 1988-04-25 1989-04-24 Stringed frame with adjustable tensioning
DE19893917868 DE3917868A1 (de) 1988-04-25 1989-06-01 Rahmen mit einer unter zugspannung stehenden besaitung oder dgl.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3813872A DE3813872A1 (de) 1988-04-25 1988-04-25 Rahmen mit einer unter spannung stehenden besaitung oder dgl.

Publications (2)

Publication Number Publication Date
DE3813872A1 DE3813872A1 (de) 1989-11-02
DE3813872C2 true DE3813872C2 (OSRAM) 1991-05-16

Family

ID=6352807

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3813872A Granted DE3813872A1 (de) 1988-04-25 1988-04-25 Rahmen mit einer unter spannung stehenden besaitung oder dgl.

Country Status (2)

Country Link
US (1) US4995608A (OSRAM)
DE (1) DE3813872A1 (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720680A (en) * 1995-02-17 1998-02-24 Mark; Eberhard Von Der Stringed racket tensioning mechanism

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2079347A1 (en) * 1992-09-24 1994-03-25 Charles C. Dicerbo Sports racket
US5458331A (en) * 1994-07-22 1995-10-17 Bothwell; Brett P. Game racket with adjustable string suspension system
CA2174696A1 (en) * 1996-04-22 1997-10-23 Charles Dicerbo Sports racket
US20060166767A1 (en) * 2002-07-15 2006-07-27 Hiroo Yanahara Sporting racket
US20070149327A1 (en) * 2005-12-27 2007-06-28 Varan Cyrus O X-braced tennis racket
DE102007042321A1 (de) 2007-09-06 2009-04-02 Head Technology Gmbh Ballschläger, Spannvorrichtungen, Rahmen und Rahmenabschnitte mit durch Stellmittel homogen verstellbarer Zugspannung seiner Bespannung
US9320946B2 (en) 2007-11-26 2016-04-26 Brett Bothwell System and method for a game racquet including an actuator
US9132321B2 (en) 2007-11-26 2015-09-15 Brett Bothwell System and method for an inflation bladder composite game racket
US9821197B2 (en) 2007-11-26 2017-11-21 Brett Bothwell System and method for a game racquet including a grommet actuator
US20130203529A1 (en) * 2012-01-19 2013-08-08 Revolutionary Tennis Innovations, Llc Sports racket and method of manufacturing same
USD698879S1 (en) * 2012-04-10 2014-02-04 Prince Sports, Llc String bed design for a tennis racquet
US10617922B2 (en) * 2018-09-18 2020-04-14 Lax Bash Tournaments, LLC Adjustment device for use with athletic equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB247773A (en) * 1925-04-02 1926-02-25 Frederick Henry Addis Improvements relating to tennis, badminton and like racquets
US1862581A (en) * 1927-02-25 1932-06-14 Roy H Robinson Tennis racket
US2206548A (en) * 1939-06-17 1940-07-02 Goerke Henry Racket
US3904202A (en) * 1974-06-14 1975-09-09 John A Delorean Corp Racket
US4102533A (en) * 1977-05-05 1978-07-25 Ida Engineering, Inc. Adjustable head racquet frame
US4099717A (en) * 1977-05-11 1978-07-11 Sacks Bernard R Adjustable tension tennis racket
DE3343300A1 (de) * 1983-11-30 1985-06-05 Grabosch, Reinhold, Dr., 7778 Markdorf Tennisschlaeger mit auswechselbarer und nachspannbarer besaitung
DE3615123A1 (de) * 1986-05-03 1987-11-05 Hackewitz Friedrich Wilhelm Vo Rahmen mit einer unter zugspannung stehenden besaitung oder dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720680A (en) * 1995-02-17 1998-02-24 Mark; Eberhard Von Der Stringed racket tensioning mechanism

Also Published As

Publication number Publication date
DE3813872A1 (de) 1989-11-02
US4995608A (en) 1991-02-26

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