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EP0225881B1 - Dispositif facilitant l'apprentissage du golf - Google Patents

Dispositif facilitant l'apprentissage du golf Download PDF

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Publication number
EP0225881B1
EP0225881B1 EP19860900804 EP86900804A EP0225881B1 EP 0225881 B1 EP0225881 B1 EP 0225881B1 EP 19860900804 EP19860900804 EP 19860900804 EP 86900804 A EP86900804 A EP 86900804A EP 0225881 B1 EP0225881 B1 EP 0225881B1
Authority
EP
European Patent Office
Prior art keywords
sensor
teaching aid
head
golf teaching
movement
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
EP19860900804
Other languages
German (de)
English (en)
Other versions
EP0225881A1 (fr
Inventor
John Maxwell
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 EP0225881A1 publication Critical patent/EP0225881A1/fr
Application granted granted Critical
Publication of EP0225881B1 publication Critical patent/EP0225881B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3608—Attachments on the body, e.g. for measuring, aligning, restraining
    • 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
    • A63B2071/0625—Emitting sound, noise or music
    • A63B2071/0627—Emitting sound, noise or music when used improperly, e.g. by giving a warning
    • 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
    • A63B2071/0694—Visual indication, e.g. Indicia
    • 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
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/803—Motion sensors
    • 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
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3614—Training appliances or apparatus for special sports for golf using electro-magnetic, magnetic or ultrasonic radiation emitted, reflected or interrupted by the golf club

Definitions

  • This invention relates to a golf teaching aid.
  • playing of golf it is most desirable that the head of the player shall be kept as still as possible whilst a shot is played.
  • beginners and often more experienced players as well
  • teachers of the game commonly have to spend some time in trying to ensure that their pupils' heads are kept still or reasonably still whilst shots are played.
  • a golf teaching aid comprising a mounting portion for locating the aid on the head of the user, a sensor mounted on the mounting portion for movement relative thereto and providing a signal dependent upon the acceleration of the users head, and a warning device driven by an electrical circuit to which said sensor is connected, for providing an audible and/or visible warning to the user in the event of an unacceptable degree of acceleration; characterised in that the sensor is capable of producing different signals in accordance with different directions of head acceleration and said circuit causing said warning device to produce warnings of different characteristics dependent on said sensor signals, whereby the direction of sensor movement can be identified by the corresponding characteristics of warning.
  • the aforesaid actuating element conveniently comprises a sensor which incorporates material having piezo-electric properties.
  • the sensor may comprise an assembly which includes a strip or foil of piezo-electric material and support means therefor, said assembly being pivotally mounted at one end and being free at its other end.
  • Such an assembly may be flexible in a plurality of planes.
  • the electrical circuit may also include means for adjusting the sensitivity of the signal-producing means.
  • the sensor may incorporate a plurality of elements formed of piezo-electric material and adapted respectively to monitor in use a plurality of possible directions of head movement, switching means being provided to activate any one or more of said elements as may be required.
  • the golf teaching aid is housed in a convenient housing 24 which may be formed for example from any convenient synthetic resin material and which is arranged by means of projecting ears such as ear 25 to be attached to a cap or headband 26 by conventional "press-on" fastening means, the headband 26 being preferably adjustable in diameter so as to be capable of adjustment to suit the head of a user.
  • the container 24 is readily attachable to or detachable from the headband 26 and accordingly need only be attached to said headband (so as to be movable with the head of the wearer) when it is desired that the golf teaching aid should be used.
  • the front of the container 24 may be provided with an aperture 27 behind which a "bleeper" may be mounted and there may also be provided a further aperture indicated by reference numeral 28 through which can project in use either a slider switch or a series of independently actuable switches for adjusting the sensitivity of the actuating element of the teaching aid when required.
  • Said housing 24 is also provided with a socket 29 into which an earphone 30 can be plugged when desired, in which event the aforesaid "bleeper" would be disconnected.
  • the aforementioned housing 24 serves to house within its interior an electronic circuit (see Figure 2) which includes a sensor generally indicated by reference numeral 31.
  • the sensor incorporates material which has piezo-electric properties and one material which exhibits such properties and which has been found to be particularly effective is the material known as polyvinylidene fluoride (PVDF).
  • PVDF polyvinylidene fluoride
  • a strip or foil of such PVDF material 32 is sandwiched between and secured, as by adhesive, to a pair of supporting members 33 and 34 and one end of the assembly thus made is connected to a convenient support which provides a single pivotal axis such as is indicated in Figure 2 by reference numeral 35.
  • the other end of said assembly (which is free to flex) 31 is provided with a mass 36 so that acceleration imparted to the head (and therefore to the golf teaching aid also) will result in a flexing movement of the sensor 31 about its connected end 35.
  • Such movement of the sensor because of the piezo-electric properties of the PVDF material, will result in the generation of electrical signals which are conveyed by means of leads 37 and 38 to a differential amplifier 39 which is connected to a battery 40, signals generated in said leads 37 and 38 providing the inputs to said differential amplifier 39.
  • the output of said differential amplifier is fed to a full-wave rectifier 40a and the output of said full-wave rectifier forms one input 41 to a comparator 42.
  • the other input 43 of said comparator is connected to a variable resistance 44 which can either be infinitely varied by the user to set the threshold at which the aforementioned bleeper starts to operate or alternatively which has a number of preset positions corresponding to the independently actuable switches which will be accessible from the aforesaid aperture 28 of the housing 24.
  • the output of said comparator 42 is connected to a lamp driver 45 which is itself connected to a lamp 46 or alternatively to a sound generator 47 which may either produce a sound in the aforesaid bleeper mounted in the housing 24 or alternatively may be connected to the earphone 30 when it is desired that an audible signal produced by the golf teaching aid shall only be audible to the wearer himself.
  • the aforementioned lamp 46 may be mounted in any convenient position (for example on the underside of said container 24) so that it will be visible through a suitable aperture or grid formed in the peak 48 of the headband 26 if in use such lamp becomes illuminated because of an unacceptable degree of acceleration imparted to the head of the user.
  • the degree of acceleration (caused by movement of the golfer's head) which is unacceptable can of course be adjusted by the user as mentioned above and can also have an initial value which is determined by the "stiffness" of the sensor and the size of the mass 36.
  • the sensor 31 as depicted in Figure 3 of the drawings (which in use will be flexible in a generally horizontal plane) will be capable of detecting movement of the golfer's head in one line such as a generally fore-and-aft direction namely a direction which is parallel to the intended direction in which the golf ball is to be hit.
  • a generally fore-and-aft direction namely a direction which is parallel to the intended direction in which the golf ball is to be hit.
  • an audible or visible signal will then be generated if the golfer's head moves with an unacceptable degree of acceleration either forwards or backwards relative to the direction of his stroke.
  • the PVDF material comprises a cylindrical core (see Figure 4) 49 which is mounted in a tubular support 50, such a sensor being flexible in a plurality of planes so as to be capable of detecting movement in a variety of directions such as for example up and down as well as fore-and-aft.
  • the sensor may be,electrically connected to apparatus, which may include a visual display unit, and which is arranged to analyse a golfer's swing to the extent that the magnitude of any undesirable head movement is measured and the position in the swing at which such movement occurred is indicated.
  • the electrical circuits can be arranged so that the aforesaid bleeper (or earphone) emits notes of different frequencies or beats of different frequencies to indicate which one of the various possible directions of head movement has occurred.
  • the aforesaid bleeper or earphone
  • a series of differently coloured lights can be used to indicate the particular direction in which head movement has occurred.
  • Figure 5 shows a further alternative form of sensor in which the support 51 is of generally square or rectangular configuration in cross-section, a strip or foil of piezo-electric material being secured to each of the four faces of the support as indicated by reference numerals 52, 53, 54 and 55.
  • These four strips or foils can be connected in electronic circuits such as is shown in Figure 2 and can be used to indicate respectively movement of the head in, say, horizontal (e.g. left and right) directions and vertical (up and down) directions.
  • any conventional form of switching means may be provided in order that any one or more of the four possible directions of head movement can be monitored as may be required.
  • a sensor such as is shown in Figure 3 can be mounted so that it can be turned through 90° when desired and in this case it can be set to flex in either a horizontal or vertical plane.
  • a golf teaching aid constructed in accordance with the present invention can be used either indoors or outdoors (on or off a golf course) and either with or without a golf ball or indeed a golf club and it will be able to indicate to golf player whether or not he or she moves his head during the execution of a golf swing or a practice swing.
  • the aid can be used, without any special or additional equipment, by either right-handed or left-handed golfers and insofar as it is not necessary to have any other person present the aid will be able to assist in the teaching or correcting of a golf swing without any person other than the player being involved; it being understood that it is important that the head of the golfer should remain still or reasonably still so as to act as a focal point around which the golf club can pivot whilst the swing is being executed.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)

Abstract

Dans un dispositif facilitant l'apprentissage du golf, il est prévu une partie embout (10) ou une autre partie pouvant être fixée ou reliée à la tête (15) d'un golfeur, et un élément de commande (13) qui est mobile par rapport à ladite partie (10) si, en service, la tête (15) du golfeur sur laquelle cette partie est fixée se déplace, avec un degré inacceptable d'accélération, par rapport à une position immobile. Lors d'un tel mouvement de la tête, l'élément (13) est conçu soit pour établir un contact physique avec le golfeur de manière à fournir une indication tactile directe que le mouvement s'est produit soit dans une variante, ou en plus, pour commander un moyen qui fournit un signal visuel et/ou auditif indiquant que le mouvement s'est produit.

Claims (7)

1. Moyen d'assistance pour l'enseignement du golf, comprenant une partie de montage (24) pour fixer le moyen d'assistance sur tête de l'utilisateur, un détecteur (31) monte sur la partie de montage de façon mobile par rapport à celle-ci et émettant un signal qui dépend de l'accélération de la tête de l'utilisateur, et un dispositif d'alarme (30) commandé par un circuit électrique auquel est relié ledit détecteur, pour fournir à l'utilisateur un signal d'alarme audible et/ou visible dans le cas d'un degré d'accélération inacceptable; caractérisé en ce que le détecteur est capable de produire différents signaux suivant les différentes directions de l'accélération de la tête et que ledit circuit provoque l'émission, par ledit dispositif d'alarme, de signaux d'alarme ayant différentes caractéristiques suivant les signaux dudit détecteur, ce qui permet d'identifier la direction du mouvement du détecteur par les caractéristiques correspondantes du signal d'alarme.
2. Moyen d'assistance pour l'enseignement du golf selon la revendication 1, caractérisé en ce que ledit détecteur (31) comprend un matériel ayant des propriétés piézoélectriques.
3. Moyen d'assistance pour l'enseignement du golf selon la revendication 2, caractérisé en ce que le détecteur comprend un ensemble comprenant une bande ou feuille en matériau piézoélectrique et des moyens de support pour celle-ci, ledit ensemble étant monté en pivotement par une extrémité et libre à son autre extrémité.
4. Moyen d'assistance pour l'enseignement du golf selon la revendication 2 ou 3, caractérisé en ce que l'ensemble est flexible dans une pluralité de plans.
5. Moyen d'assistance pour l'enseignement du golf selon la revendication 1 ou 2, caractérisé en ce que le circuit électrique comprend également des moyens (44) pour ajuster la sensibilité du moyen produisant le signal.
6. Moyen d'assistance pour l'enseignement du golf selon l'une quelconque des revendications précédentes, dans lequel le détecteur comprend une pluralité d'éléments formés d'un matériau piézoélectrique et adaptés respectivement à contrôler en fonctionnement une pluralité de directions possibles du mouvement de la tête, des moyens de commutation étant prévus pour activer l'un quelconque ou plusieurs desdits éléments si necessaire.
7. Moyen d'assistance pour l'enseignement du golf selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu un boitier (24) dans lequel le moyen d'assistance est monté et qui est reliable de façon amovible à une casquette ou serre-tête (26).
EP19860900804 1985-03-16 1986-01-20 Dispositif facilitant l'apprentissage du golf Expired - Lifetime EP0225881B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8506893 1985-03-16
GB8506893A GB8506893D0 (en) 1985-03-16 1985-03-16 Golf teaching aid

Publications (2)

Publication Number Publication Date
EP0225881A1 EP0225881A1 (fr) 1987-06-24
EP0225881B1 true EP0225881B1 (fr) 1990-05-09

Family

ID=10576138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860900804 Expired - Lifetime EP0225881B1 (fr) 1985-03-16 1986-01-20 Dispositif facilitant l'apprentissage du golf

Country Status (3)

Country Link
EP (1) EP0225881B1 (fr)
GB (1) GB8506893D0 (fr)
WO (1) WO1986005405A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553857A (en) * 1993-12-06 1996-09-10 Fish; Leonard A. Physical activity training device and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461826A (en) * 1946-10-09 1949-02-15 Krautter Louis Martin Golf swing trainer
GB635448A (en) * 1948-04-15 1950-04-12 John Moran Murphy Improvements in and relating to devices for use in teaching or practicing the game of golf
US3178187A (en) * 1962-12-17 1965-04-13 Cardwell Lloyd Golfer's head movement indicator
US4098509A (en) * 1977-06-08 1978-07-04 Krevelen Nellis D Van Golfing device
US4502035A (en) * 1983-07-11 1985-02-26 Obenauf James E Golfer's head motion sensor

Also Published As

Publication number Publication date
EP0225881A1 (fr) 1987-06-24
GB8506893D0 (en) 1985-04-17
WO1986005405A1 (fr) 1986-09-25

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