WO2004058364A1 - Evaluation device and vibration damper for a racket - Google Patents
Evaluation device and vibration damper for a racket Download PDFInfo
- Publication number
- WO2004058364A1 WO2004058364A1 PCT/CH2002/000726 CH0200726W WO2004058364A1 WO 2004058364 A1 WO2004058364 A1 WO 2004058364A1 CH 0200726 W CH0200726 W CH 0200726W WO 2004058364 A1 WO2004058364 A1 WO 2004058364A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vibration damper
- damper according
- racket
- damper body
- vibration
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/38—Training appliances or apparatus for special sports for tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/02—Tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/40—Acceleration
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
Definitions
- the invention relates to a vibration damper for stringed ball rackets for tennis, squash, badminton racket ball and similar sports according to the preamble of the independent claim.
- vibration dampers in the racket. They are primarily used to dampen the "singing" of the strings of the net after a ball has impacted. This "singing” can be so loud that it irritates players and spectators.
- vibration-damping elements are built into the frame of the racket. However, these are primarily shock-absorbing and less sound-absorbing. Damper elements made of rubber, plastic and similar materials are therefore often placed directly on the net in the lower area of the face. * They are simply clamped between the strings. They significantly dampen the audible sound when the ball is hit. The mass of the damper lowers the free oscillation frequency and the high frequencies are suppressed.
- Such a vibration damper consists, for example, of two flat elements which are connected to one another.
- the vibration damper is inserted into the network at the desired location.
- a vibration damper is inserted through a square opening in the net. At least two strings are now partially covered and pinched by the vibration damper. The damper is in the use position.
- Victory is the goal in pure competitive sports. If you could measure the strength and direction of the impact of the ball, you could help a competitor optimize their stroke type. In popular sports, on the other hand, fitness is the main focus. But those who practice fitness would like to know what they have done after a training session to get information about their shape. Attempts have already been made in this direction. From DE 40 07 549 a tennis racket with a stroke counting device is known. In the handle of the tennis racket there is a movable ball, which acts against a spring by your centrifugal force and mechanically actuates a counter switch when you snap back. A table tennis racket is known from US 2002/0068652, which has a stroke counting device in the handle.
- US 6,409,616 shows a tennis racket which has a calorie counter in the handle. The number of swing movements of the racket is paid and the force of the turns is estimated. The calorie consumption is calculated from this. From BE 1011942 a method for analyzing the strokes of a tennis player is known, which works with acceleration sensors. The sensors and the associated electronic elements are also arranged at the transition from the handle to the frame of the racket.
- the object of the invention is to provide a vibration damper which fulfills further functions and offers the player additional possibilities. Any weakening of the racket should be avoided.
- An additional advantage of the invention is that one can even record the physical performance of the player during a training session or match and read it off in desired units such as kilojoules, kilocalories, watts and so on. This means that tennis can also be used as a pure fitness sport.
- Another advantage of the invention is that you can even transmit the power of a tennis player on a large display on the edge of the field during a match. This can make sport more attractive in tournaments of tennis stars.
- the invention has a further advantage in that the "intelligent" vibration damper can be used independently of the racket construction, the type of manufacture and the manufacturer's brand. It can also be used with any existing racket without any intervention on the handle or frame of the racket.
- the invention is described below in connection with the drawings. Show it:
- Figure 1a Evaluation unit integrated in a bracelet
- Figure 2 shows a vibration damper in cross section
- Figure 3 another embodiment in cross section.
- Figure 4 is a block diagram of an evaluation unit.
- vibration dampers which are clamped in the lower region into the net between the strings 21, 22, as shown in FIG. They are made of rubber, plastic or similar material and have a small mass between about 3 and 25 grams. In order for these vibration dampers to be effective, they have to have a certain size in addition to their weight. The method of attachment and the number of directly recorded strings can be chosen freely, since no special preconditions need to be met.
- the new vibration damper 3 uses these properties of weight and size by integrating microelectronics.
- the microelectronics are designed so that the number of ball strikes, their strength, pulse direction and cadence can be recorded, measured, counted and output during a match or training.
- it comprises at least one acceleration sensor 36 and an electronic circuit 35.
- a small display 34, LCD or the like can also be present on the vibration damper 3.
- the registered values can be called up and the evaluations can be displayed. For example, the energy spent by the player in kilojoules or the average impact strength, which gives a measure of the aggressiveness and strength of the player, can be displayed.
- the vibration damper in this embodiment is made in one piece from a suitable damper material.
- the vibration damper 3 for the racket 1 is inserted into the net 2 of the racket 1. It is pressed or screwed into the net. It can also be hooked so that it can be hooked into the network. In an elongated, beaded design, it can also be woven into a net.
- the damper body 3 of the vibration damper can in principle be attached anywhere on the network as long as it is mechanically connected to at least one string.
- the vibration damper 3 is provided with a transmitter 39 which transmits the measurement data to a receiving station outside the racket.
- This receiver can be built into a bracelet 4, a watch or a piece of jewelry, as shown in FIG. 1a.
- the evaluation unit with microprocessor and display 44 is then in this bracelet.
- the receiver is designed as an additional device for a computer, which is then used as an evaluation unit. It can then be set up outside the field. The measured data can be continuously transmitted online to the trainer. It also shows values for the spectators of a match directly on a large display.
- the display 34 built into the vibration damper 3 can be dispensed with, because the data can be transmitted wirelessly to a separate evaluation unit or a display during or after the training or match by radio or infrared interface or by means of a plug-in cable connection.
- the vibration damper 3 consists of a flat lower part 32 and a flat upper part 31, the flat lower part 32 and the flat upper part 31 being connected to one another. Upper part 31 and lower part 32 can also be in one piece. The areal dimension is such that the vibration damper can be inserted between two adjacent parallel strings 21, 22 of the network, where it is held in a clamped manner. It is provided with a sensor 36 for measuring accelerations.
- the sensor 36 measures accelerations at least in the direction z perpendicular to the surface of the network 2. It can be designed such that it also records and uses accelerations in the plane of the network in the x and y directions. It can be useful to install three different sensors 36 as accelerometers for this purpose. Piezoelectric sensors are particularly suitable. Alternatives are also inductive, capacitive or magnetostrictive accelerometers.
- An electronic circuit 35 with a microprocessor 352 according to the block diagram of FIG. 4 is accommodated in the vibration damper 3.
- the measurement signals are fed from at least one acceleration sensor 36 to the microprocessor 352 via an A-D converter 361.
- the microprocessor 352 is designed with a data memory 351 for storing rows of measured values and measurement data and / or metadata necessary for processing.
- the microprocessor 352 controls the LCD display 34.
- the evaluation circuit is supplied with electrical energy by an energy store 37.
- the microprocessor forwards the measured values via a second converter 362 to a transmitter 39, which operates an interface 391 for external evaluation.
- the electronic circuit 35 and / or the evaluation circuit controls the display 34 or an external display for optically reading measurement data or the desired values calculated from the measurement data.
- a push button 38 or a selector switch can be arranged on the vibration damper.
- the output can also be audio-visual with known display options.
- the measured values on the display 34 are read by a scanner after the game, so that they then continue on a computer can be evaluated. On the basis of such data, a trainer can have a new influence on the player's striking technique.
- connection for a computer can be present.
- the connection is made by means of a plug-in cable or by means of a wireless transmission such as the known infrared or radio transmission elements.
- a wireless transmission such as the known infrared or radio transmission elements.
- a corresponding transmitter 39 is accommodated in the vibration damper 3.
- the data is transmitted wirelessly from the microprocessor 352 to a suitable receiver.
- the receiver can, for example, be outside the playing field and enable a wide variety of evaluations, representations and statistics by means of computers.
- the data from the transmitter 39 are transmitted continuously or in pulsed form to the receiver via the interface 391. This can also be done during or after a training session or match on call.
- the energy store can be a battery or a capacitor. It is possible to convert the impact energy of the impacting ball directly into electrical energy which is fed to the energy store. In this way, a battery as such can be dispensed with. For example, a piezo element or the like is suitable for this. With a suitable design, the sensor 36 itself can be used in addition to the measuring function for converting the impact energy into electrical energy. This is then fed to the energy store 37.
- the arrangement of a small photovoltaic cell on one of the outer surfaces of the vibration damper is also suitable.
- the vibration damper can be equipped with other functions. Additional sensors enable external framework conditions to be recorded. For example, its air temperature, humidity, brightness (sunlight) and so on, which can have an impact on the well-being of the player during a game. It will also be possible to record other data relevant to the game, as well as certain string parameters to measure continuously, such as the string tension of the network.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02785007A EP1613403A1 (en) | 2002-12-27 | 2002-12-27 | Evaluation device and vibration damper for a racket |
PCT/CH2002/000726 WO2004058364A1 (en) | 2002-12-27 | 2002-12-27 | Evaluation device and vibration damper for a racket |
AU2002350367A AU2002350367A1 (en) | 2002-12-27 | 2002-12-27 | Evaluation device and vibration damper for a racket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2002/000726 WO2004058364A1 (en) | 2002-12-27 | 2002-12-27 | Evaluation device and vibration damper for a racket |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004058364A1 true WO2004058364A1 (en) | 2004-07-15 |
Family
ID=32660971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2002/000726 WO2004058364A1 (en) | 2002-12-27 | 2002-12-27 | Evaluation device and vibration damper for a racket |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1613403A1 (en) |
AU (1) | AU2002350367A1 (en) |
WO (1) | WO2004058364A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009033298A1 (en) * | 2007-09-14 | 2009-03-19 | Zueger Christian | A system for capturing tennis match data |
FR3030761A1 (en) * | 2014-12-23 | 2016-06-24 | Gilles Hamou | DEVICE FOR MEASURING THE MOVEMENTS OF SPORTS EQUIPMENT |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US68652A (en) | 1867-09-10 | Setts | ||
DE3414467A1 (en) * | 1983-05-02 | 1985-01-31 | Jindrich Cermak | Stroke counter |
DE4007549A1 (en) | 1990-03-09 | 1991-09-12 | Rudolf Dipl Ing Pappers | Tennis racket incorporating electronic counter and display - contained in hollow space provided in racket handle |
BE1011942A6 (en) | 1998-05-28 | 2000-03-07 | Angelroth Georges | Universal system for detecting and interpreting the impact of a ball on a racket |
US6134965A (en) * | 1995-11-08 | 2000-10-24 | Raymond Joseph Somville | Device for measuring at least one physical parameter relating to a propelled game ball |
US6409616B1 (en) | 2001-05-16 | 2002-06-25 | Topteam Technology Taiwan Co., Ltd. | Calorie counting racket |
EP1232772A2 (en) * | 2001-02-15 | 2002-08-21 | Frank Hielscher | Item of games and sport equipment |
-
2002
- 2002-12-27 EP EP02785007A patent/EP1613403A1/en not_active Withdrawn
- 2002-12-27 AU AU2002350367A patent/AU2002350367A1/en not_active Abandoned
- 2002-12-27 WO PCT/CH2002/000726 patent/WO2004058364A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US68652A (en) | 1867-09-10 | Setts | ||
DE3414467A1 (en) * | 1983-05-02 | 1985-01-31 | Jindrich Cermak | Stroke counter |
DE4007549A1 (en) | 1990-03-09 | 1991-09-12 | Rudolf Dipl Ing Pappers | Tennis racket incorporating electronic counter and display - contained in hollow space provided in racket handle |
US6134965A (en) * | 1995-11-08 | 2000-10-24 | Raymond Joseph Somville | Device for measuring at least one physical parameter relating to a propelled game ball |
BE1011942A6 (en) | 1998-05-28 | 2000-03-07 | Angelroth Georges | Universal system for detecting and interpreting the impact of a ball on a racket |
EP1232772A2 (en) * | 2001-02-15 | 2002-08-21 | Frank Hielscher | Item of games and sport equipment |
US6409616B1 (en) | 2001-05-16 | 2002-06-25 | Topteam Technology Taiwan Co., Ltd. | Calorie counting racket |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009033298A1 (en) * | 2007-09-14 | 2009-03-19 | Zueger Christian | A system for capturing tennis match data |
CN101835513B (en) * | 2007-09-14 | 2012-06-27 | 齐特里斯股份公司 | A system for capturing tennis match data |
US8882613B2 (en) | 2007-09-14 | 2014-11-11 | Kitris Ag | System for capturing tennis match data |
FR3030761A1 (en) * | 2014-12-23 | 2016-06-24 | Gilles Hamou | DEVICE FOR MEASURING THE MOVEMENTS OF SPORTS EQUIPMENT |
Also Published As
Publication number | Publication date |
---|---|
AU2002350367A1 (en) | 2004-07-22 |
EP1613403A1 (en) | 2006-01-11 |
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