EP0574334B1 - Club pour la pratique du golf - Google Patents

Club pour la pratique du golf Download PDF

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Publication number
EP0574334B1
EP0574334B1 EP93420230A EP93420230A EP0574334B1 EP 0574334 B1 EP0574334 B1 EP 0574334B1 EP 93420230 A EP93420230 A EP 93420230A EP 93420230 A EP93420230 A EP 93420230A EP 0574334 B1 EP0574334 B1 EP 0574334B1
Authority
EP
European Patent Office
Prior art keywords
zone
iron
striking
shaft
heel
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
EP93420230A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0574334A3 (enrdf_load_stackoverflow
EP0574334A2 (fr
Inventor
Roger Cleveland
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.)
Roger Cleveland Golf Co Inc
Original Assignee
Roger Cleveland Golf Co Inc
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
Priority claimed from FR9207309A external-priority patent/FR2692156B1/fr
Application filed by Roger Cleveland Golf Co Inc filed Critical Roger Cleveland Golf Co Inc
Publication of EP0574334A2 publication Critical patent/EP0574334A2/fr
Publication of EP0574334A3 publication Critical patent/EP0574334A3/xx
Application granted granted Critical
Publication of EP0574334B1 publication Critical patent/EP0574334B1/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
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/005—Club sets
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0433—Heads with special sole configurations
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type
    • 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 new club for the practice of golf, also called “cane”, in particular of the iron type.
  • the invention is more particularly described in its application to irons, it can also be for wood. It suffices that the striking face of the club, flat or slightly curved, be inclined relative to the ground.
  • Figure 1 shows a golf club shown in the normal position at the address, that is to say in the position of striking the ball.
  • Figures 2 to 4 show a classic golf club called iron, respectively seen from the front (Figure 2), and whose head is shown in detail in Figures 3 and 4, respectively front view ( Figure 3) and side view ( figure 4).
  • Such an iron essentially comprises a handle (2) terminated by a handle (3) and connected to the head (4) by a socket (5) receiving the other end of the handle (2 ).
  • This socket (5) is connected to the head (4) by a neck (6) disposed at the end of the heel (7).
  • the actual head (4) generally made of metal, molded or forged, comprises a flat striking face inclined (8) at a gamma angle (see FIG. 4), relative to the axis Oy (see FIG. 1) called the angle opening or "Loft angle".
  • the striking face (8) comprises a striking zone proper, striated (9), delimited at the bottom by a lower edge (11), disposed in front of the upper edge (12) inclined in projection on the plane P1 at an angle alpha (see Figure 3) relative to the axis Ox, defining the inclined striking plane.
  • the inclined striking face (8) comprises two smooth lateral zones (7) and (10) arranged on either side of the striated striking zone (9).
  • the wide free end zone (10) is called "point”, while the narrow opposite zone connected to the handle (2) comprises a connecting zone (13) arranged between the striking zone (9) and the neck (6); this smooth connection zone (13) is terminated by the heel (7) merged with the base of the neck (6) comprising the socket (5).
  • the neck (6) comprises two main parts, respectively a connecting portion (13) merged with the heel (7), arranged most of the time tangentially and at the end of this heel (7), and a straight portion comprising the socket (5) connecting with the handle (2).
  • the socket (5) is aligned with the handle (2) along the longitudinal axis (I-I ') and is, as said above, disposed at the end of the heel (7), c 'that is to say at the narrowest end of the striking face (8) and more precisely at the end called heel (7) of the smooth connecting zone (13).
  • the neck fastener (6) in other words the narrow connection zone, is always tangent to the narrowest end of the head (4) proper.
  • the fastener is merged with the heel (7).
  • this attachment is relatively far from the striking zone (9), therefore from the ideal percussion center. In this way, upon impact, we continue to observe an appreciable torsional moment.
  • an iron comprising a handle and a striking head with a striated striking zone delimited on each side by a smooth zone, respectively a broad zone forming the point and a narrow zone forming the heel.
  • This striking zone is delimited by a lower edge at the front of the sole and by an upper edge, these two edges defining the inclined plane of the striking face.
  • the handle is connected to the striking head by means of a neck respectively comprising a socket for connection to the handle and a connection portion to the striking surface, disposed behind the tip and behind the plane of the striking face. .
  • the longitudinal axis of the handle meets the striking face above and behind the striated striking zone (see FIG. 4). This arrangement is not satisfactory, since it does not effectively attenuate the torque during impact, and does not allow self-centering, which is more and more sought after by average practitioners or little experienced.
  • the invention overcomes these drawbacks. It is aimed at a club for the practice of golf of the type in question with an inclined striking face, having a reduced torsional moment, therefore easier to practice for average or inexperienced players.
  • the distance (D) between the end of the heel and the longitudinal axis of the handle, or more exactly its extension, is close to 8 millimeters.
  • the connecting portion is arranged halfway in the smooth narrow zone formed between the end of the heel and the edge of the striated part of the striking zone.
  • this distance AB is equal to zero.
  • the neck is bent in the planes P1 and / or P2.
  • the neck is straight.
  • the head of this iron has a peripheral weight distribution on the back of the striking face and, more precisely on the sole, which has the advantage of offering better resistance to twisting during off-center hits.
  • the sole is formed of three distinct zones, respectively two extreme lateral zones and a central zone.
  • the two end zones are wider and thicker than the central zone.
  • each of these zones has a general curvilinear shape; for example, the rear edge of the sole, seen from above, has a generally convex shape at each of the two ends, concave in the center.
  • the external shape of the sole that is to say that intended to come into contact with the ground, is generally convex and its internal shape, that is to say that which is opposite, is generally concave .
  • FIG. 1 represents the positioning of a traditional iron with respect to the three reference planes P1, P2 and P3.
  • FIGS. 2, 3 and 4 represent this traditional iron respectively seen from the front in FIG. 2 and the head of which is detailed in FIG. 3 seen from the front, and side view in FIG. 4.
  • FIGs 5 to 7 illustrate an iron according to the invention shown respectively seen from the front ( Figure 5), seen from the side ( Figure 6), seen from above ( Figure 7).
  • Figure 8 shows a traditional iron in rear view.
  • Figures 9 to 11 show an iron head according to the invention viewed respectively from the rear (Figure 9), from below ( Figure 10), from above ( Figure 11).
  • FIGS. 5 to 7 the same elements show the same elements as in FIGS. 2 to 4.
  • the reference (15) designates the sole, generally convex.
  • Point A designates the projection of the most advanced point of the lower edge (11) on the ground (16) (see Figures 5 and 6), when the club is at the address.
  • the reference (17) designates the vertical center line of the striated zone (9) of the striking face (8).
  • the beta angle designates, as already said, the lie angle, while the gamma angle designates the opening angle or loft angle of the striking face (8).
  • the reference R1 designates the radius of the lower edge (11) limiting the sole (15), at least when the latter, as shown, is convex, from the heel (7) to the tip (10).
  • this sole (15) (see FIG. 6) is convex from the front lower edge (11) to the rear lower edge (11a) with a radius of curvature R2.
  • R1 is close to 120 to 130 millimeters and R2 is close to 50 millimeters.
  • the connecting portion (13) of the neck is arranged midway between the narrow end of the heel (7) of the striking face (8), and the first edge (20) of the striated striking zone (9) proper.
  • the distance (D) between the end of the heel (7) and the longitudinal axis (I-I ') is at least eight millimeters, preferably between 8 and 16 millimeters.
  • the longitudinal axis (I-I ') of the handle (2) meets the flat striking face (8) in the striated striking zone (9) (see FIG. 7), in the lower part of this zone of strike (9).
  • the axis (I-I ') is closer to the center of gravity of the head than it is in the traditional clubs shown in Figures 2 to 4.
  • this axis (I-I ') may meet the extension of the inclined plane forming the striking face (9) just in front of the lower edge (11).
  • the length of the neck (6) varies as a function of the gamma loft angle of the club head.
  • this neck (6) is formed of a first straight cylindrical portion to connect to the handle in the plane P1 substantially vertical, then of a second bent portion progressively flattened and curved to connect to the connection zone (13). .
  • the section of the neck (6) progressively varies from top to bottom from a circular section (straight portion) to a flat elliptical portion (bent portion), to form an asymmetrical elliptical portion at the connection (13) with the plane. of the flat striking face (8).
  • the characteristic distance AB varies according to one of the laws mentioned above.
  • part of the weight of the head is concentrated on the lower part of the perimeter of the rear face (21).
  • the upper cord (22) has a thickness e1 and a width l1 substantially constant, from the heel (7) to the tip (10).
  • the wall formed by the concave internal face (25) and the sole (15), (see FIGS. 9 and 10), is thicker and wider than the upper bead (22).
  • This wall increases then decreases in width l2 and decreases in thickness e2 from the heel (7) or the tip (10) towards the middle (28), that is to say is thicker and is wider in the lateral portions (26,27) than in the central portion (28), to better concentrate the mass on the ends (7 and 10) and on either side of the striking area.
  • this internal wall (25) firstly has in its center (28) a recess connected by two curvilinear portions (26,27) respectively at the heel (7) and at the toe (10), (see FIGS. and 10).
  • the thickness (e2) of the sole (15) measured in the plane coinciding with the rear face (21) gradually decreases from the tip (10) to the heel (7).
  • each of the three portions (26, 27, 28) of the wall forming the sole (15) takes, in a plane parallel to the plane of the striking face (8), a generally slightly curved concave shape (FIG. 9) .
  • the portion (30) formed between the lower wall (25) forming the sole and the upper cord (22) is planar and is parallel to the striking plane (8).
  • the thickness of this hollowed out portion (30) is substantially constant and is close to 4.5 millimeters, in order to better concentrate the weight on the sole (15).
  • the bottom wall forming the sole (15) is notched in the middle (28), so as to redistribute the weight even better on the ends (7, 10) and to better center the center of gravity in the head.
  • the clubs according to the invention give a better feeling of comfort, reduce fatigue, especially among average or less experienced players.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
EP93420230A 1992-06-11 1993-06-08 Club pour la pratique du golf Expired - Lifetime EP0574334B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9207309 1992-06-11
FR9207309A FR2692156B1 (fr) 1992-06-11 1992-06-11 Club pour la pratique du golf.
US983721 1992-12-01
US07/983,721 US5312105A (en) 1992-06-11 1992-12-01 Golf club

Publications (3)

Publication Number Publication Date
EP0574334A2 EP0574334A2 (fr) 1993-12-15
EP0574334A3 EP0574334A3 (enrdf_load_stackoverflow) 1994-04-06
EP0574334B1 true EP0574334B1 (fr) 1996-05-29

Family

ID=26229528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93420230A Expired - Lifetime EP0574334B1 (fr) 1992-06-11 1993-06-08 Club pour la pratique du golf

Country Status (4)

Country Link
EP (1) EP0574334B1 (enrdf_load_stackoverflow)
AU (1) AU660089B2 (enrdf_load_stackoverflow)
CA (1) CA2097128A1 (enrdf_load_stackoverflow)
DE (1) DE69302859D1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5549296A (en) * 1995-03-10 1996-08-27 Acushnet Company Golf club sole configuration
US5607363A (en) * 1995-05-19 1997-03-04 Acushnet Company Golf club head with located hosel
JP2015089514A (ja) * 2013-11-04 2015-05-11 ナイキ イノベイト セー． フェー． 付形面を有するアイアンタイプゴルフクラブおよびゴルフクラブヘッド

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683036A (en) * 1949-07-20 1954-07-06 George F Klein Nonshanking golfing iron
US2784969A (en) * 1953-10-02 1957-03-12 Spalding A G & Bros Inc Golf clubs
GB876414A (en) * 1959-10-16 1961-08-30 Karl Stecher Improvements in or relating to golf clubs
US3947041A (en) * 1973-12-10 1976-03-30 Jerry Barber Golf club
US4621813A (en) * 1984-10-15 1986-11-11 Karsten Solheim Golf club set
US4848747A (en) * 1986-10-24 1989-07-18 Yamaha Corporation Set of golf clubs
US4986541A (en) * 1988-05-09 1991-01-22 The Yokohama Rubber Co., Ltd. Iron golf club set
US5046733A (en) * 1989-12-04 1991-09-10 Antonious A J Iron type golf club head with improved perimeter weight configuration
US5183255A (en) * 1991-07-18 1993-02-02 Antonious A J Golf club with improved hosel construction

Also Published As

Publication number Publication date
EP0574334A3 (enrdf_load_stackoverflow) 1994-04-06
EP0574334A2 (fr) 1993-12-15
AU3999593A (en) 1993-12-16
CA2097128A1 (fr) 1993-12-12
AU660089B2 (en) 1995-06-08
DE69302859D1 (de) 1996-07-04

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