EP1108447A1 - Sportschläger - Google Patents
Sportschläger Download PDFInfo
- Publication number
- EP1108447A1 EP1108447A1 EP99310085A EP99310085A EP1108447A1 EP 1108447 A1 EP1108447 A1 EP 1108447A1 EP 99310085 A EP99310085 A EP 99310085A EP 99310085 A EP99310085 A EP 99310085A EP 1108447 A1 EP1108447 A1 EP 1108447A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- string
- handle
- longitudinal
- string segments
- frame
- 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- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/028—Means for achieving greater mobility of the string bed
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
-
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B49/00—Stringed rackets, e.g. for tennis
- A63B49/02—Frames
- A63B2049/0211—Frames with variable thickness of the head in a direction perpendicular to the string plane
-
- 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
- A63B51/08—Diagonal stringing
Definitions
- This invention relates to an improved sports racket, in particular an improved tennis racket.
- US-A-4 437 662 and EP-A-93 210 also relating to a sports racket, disclosed a string network, wherein a majority of longitudinal strings, inclined at a moderate angle with respect to the axis of the frame, converge from the head towards the handle and are anchored at a string anchoring device in the shank region behind the throat. This long converging string system improves power and control of the racket.
- the present invention uses a similar stringing concept, but the frame of the racket takes the form of the earlier classical wood racket form in which the throat is not the open yoke type, and the shank is a long beam which extends from the throat to the handle.
- a sports racket comprising:
- a tennis racket is used to illustrate the innovative concept, but it is understood that the concept applies to other applicable sports rackets.
- Fig. 1 is a plane view of a racket 1 according to a preferred embodiment of the invention in section through the stringing plane of the frame, comprising a racket body 2 having a longitudinal axis 3.
- the racket body 2 is composed of a handle 4 and a frame 5 composed of structural load-carrying boundary members, including, from top down, a head part 6, a middle part 7, a curved throat element 8 and a straight shank element 9 connecting the throat element to the handle.
- the body of the racket also includes a string system defining a stringing plane 10, shown in Fig. 2, which coincides with the mid-plane of the racket body, composed of two string segment systems.
- Each string segment possesses two ends, attached to the frame.
- the lateral string segments 11 run substantially perpendicular to the longitudinal axis 3, and intersect with the longitudinal string segments 12.
- Fig. 2 shows a section along the line A-A of the throat element 8 of Fig. 1, wherein a majority of the longitudinal string segments pass through the opening 21, towards the shank element 9.
- Fig. 3 is a cross section along the line B-B of the shank element 9 of Fig. 1.
- the cross section shows an I-beam as an example, wherein a plurality of the longitudinal string segments 12, which pass through the opening 21 of the throat element, is converging to the anchoring region, a region 30 between the throat element and the handle, which is generally referred to here as the region of the shank element.
- the upper flange 32 of the cross section may join the upper wall 22 of the throat of Fig. 2, and the lower flange 33 may join the lower wall 23.
- FIG. 1 A preferred arrangement of anchoring the longitudinal string segments in the shank element region 30 is shown in Fig. 1 by installing a string seat element 13, which is shown as a bar element in the stringing plane, rigidly attached to the shank element thereof, extending outwardly as an arm in a symmetrical manner on both sides of the central column 31. There may be more than one of such seat in the shank element.
- a characteristics of the present invention is that at least for two side string segments, one on each side of the longitudinal axis, such as 14 and 15 in Fig. 1, after exiting from the opening 21, which are anchored in the region between the throat element 8 and the handle 4, there is no structural, load-carrying member of the frame standing between said side string segments and the outboard space beyond, such as the space 16 and 17 respectively in Fig. 1.
- the boundary encircled by the structural members of the frame is not continuous.
- the majority of the longitudinal string segments generally converge from the head part towards the shank element, ie they are typically spaced further apart from each other at the head part than at the shank element.
- the structural discontinuity in the boundary of the frame may be disguised by a lightweight, non-structural connecting member.
- this mending member is a structural load-carrying member or not can be seen by a simple test: If the frame can stand the rigour of ball playing after the shank element is cut between the throat element and the seat element, then the connecting member is a structural, load-carrying member, which has made the frame continuous; a frame having such a disguising member and shank element is not claimed by the present application. Otherwise, the disguising member is purely decorative; the racket with a seemingly continuous boundary is within the claims of the present invention.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Pulmonology (AREA)
- Golf Clubs (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99310085A EP1108447A1 (de) | 1999-12-15 | 1999-12-15 | Sportschläger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99310085A EP1108447A1 (de) | 1999-12-15 | 1999-12-15 | Sportschläger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1108447A1 true EP1108447A1 (de) | 2001-06-20 |
Family
ID=8241812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99310085A Withdrawn EP1108447A1 (de) | 1999-12-15 | 1999-12-15 | Sportschläger |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1108447A1 (de) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2165701A (en) * | 1938-11-26 | 1939-07-11 | Goerke Henry | Racket |
DE2829818A1 (de) * | 1978-07-06 | 1980-01-17 | Kurt Hildebrand | Tennisschlaeger |
DE3211738A1 (de) * | 1982-03-30 | 1983-10-06 | Herwig Fischer | Tennisschlaeger |
EP0093210A1 (de) | 1982-04-29 | 1983-11-09 | Tsai Chen Soong | Schläger mit verschiedenen Saitenspannungen |
US4437662A (en) | 1981-01-26 | 1984-03-20 | Soong Tsai C | String load apportioned racket |
US4595201A (en) * | 1982-03-30 | 1986-06-17 | Herwig Fischer | Tensionable racket having unique stringing pattern |
GB2226250A (en) * | 1988-12-22 | 1990-06-27 | Kuni Jseng | Racket |
US5141228A (en) * | 1991-04-19 | 1992-08-25 | Soong Tsai C | Shock absorbing string post for sports rackets |
US6027420A (en) * | 1998-10-13 | 2000-02-22 | Soong; Tsai C. | Sports racket having a frame with discontinuous boundary |
-
1999
- 1999-12-15 EP EP99310085A patent/EP1108447A1/de not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2165701A (en) * | 1938-11-26 | 1939-07-11 | Goerke Henry | Racket |
DE2829818A1 (de) * | 1978-07-06 | 1980-01-17 | Kurt Hildebrand | Tennisschlaeger |
US4437662A (en) | 1981-01-26 | 1984-03-20 | Soong Tsai C | String load apportioned racket |
DE3211738A1 (de) * | 1982-03-30 | 1983-10-06 | Herwig Fischer | Tennisschlaeger |
US4595201A (en) * | 1982-03-30 | 1986-06-17 | Herwig Fischer | Tensionable racket having unique stringing pattern |
EP0093210A1 (de) | 1982-04-29 | 1983-11-09 | Tsai Chen Soong | Schläger mit verschiedenen Saitenspannungen |
GB2226250A (en) * | 1988-12-22 | 1990-06-27 | Kuni Jseng | Racket |
US5141228A (en) * | 1991-04-19 | 1992-08-25 | Soong Tsai C | Shock absorbing string post for sports rackets |
US6027420A (en) * | 1998-10-13 | 2000-02-22 | Soong; Tsai C. | Sports racket having a frame with discontinuous boundary |
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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 |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
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: 20011221 |