WO1998036803A2 - Transportable support plate for golf balls - Google Patents
Transportable support plate for golf balls Download PDFInfo
- Publication number
- WO1998036803A2 WO1998036803A2 PCT/DE1998/000554 DE9800554W WO9836803A2 WO 1998036803 A2 WO1998036803 A2 WO 1998036803A2 DE 9800554 W DE9800554 W DE 9800554W WO 9836803 A2 WO9836803 A2 WO 9836803A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- golf ball
- golf
- platen
- turf
- support plate
- 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
- A63B57/00—Golfing accessories
- A63B57/10—Golf tees
Definitions
- the invention relates to an attachment device for attaching golf balls when hitting on golf courses.
- the following attachment devices for golf balls are known in the field of golf articles:
- These tees have the shape of a tapering thin circular cone, the base of which has a depression on which the golf ball is placed. The tip of the circular cone is put into the ground. These tees are used to space the golf ball from the ground when teeing off.
- These teas have the shape of a hollow circular truncated cone and are made from an elastic material. In winter, these tees are placed on the ground with the larger base side open downwards, while the golf ball is placed on the opposite side of the stump, which has the shape of a depression.
- Teeing mats These mats are often found on the "driving ranges", where they offer the golfer a firm, level surface that should not be destroyed by the stroke.
- the mats usually consist of a rectangular piece of artificial turf mat and are firmly attached to the The golfer places the golf ball on the fibers of these mats, where the erected fibers prevent it from rolling, and strikes from there.
- the invention solves this problem in that it provides a transportable mounting plate for mounting golf balls to be hit, in which the surface facing the golf ball is essentially curved outwards, and the mounting plate is dimensioned such that its surface area is larger than that Cross-sectional area of a golf ball is, in fact, so large that when the golf ball is struck, the attachment plate serves as a protective cap for the turf underneath, even if the golf club head misses the golf ball tightly.
- the term “curved” should not be limited to a spherical configuration. Rather, it should also be understood to mean truncated pyramidal or wedge-shaped configurations, etc.
- the surface facing the golf ball must therefore not only be a continuously curved surface in the sense of a spherical surface, but can also have one or more surface sections such that the surface section for placing the golf ball forms a raised surface section with respect to the support surface of the mounting plate on the ground.
- substantially curved is to be understood, for example, to mean that a flat (rigid or flexible) apron can be provided in one piece around the curved surface section. With this apron, the sliding friction of the plate on the turf can be increased and thus prevented.
- platen should also be understood to mean that the platen as a whole has an essentially flat, plate-shaped configuration, the individual surface section of which may well be curved, curved, etc. Thus, in the area where the platen rests on the floor, “spike-like” means can also be provided to prevent the plate from slipping on the floor.
- the golfer places this platen with every stroke from the tee under the golf ball in order to protect the turf underneath before the "divots" are knocked out.
- Decisive for the destruction of the turf is the strength of the pressure acting on a certain area of the grass hub. This Pressure is measured according to the size of the impact surface or striking edge of the club head on the turf and the negative acceleration of the club head acting on this area Acceleration is the change in time of the impulse transmitted by the impact of the club head.
- the platen according to the invention counteracts this pressure, which is decisive for the destruction, in two respects.
- the curvature of the platen ensures that the impact pulse of the golf club head, regardless of the orientation of the striking edge of the golf club head to the platen at the time of the stroke, is only completely absorbed in the material of the platen before it is passed on to the turf. There can therefore be no pressure running along the edge of the golf club or acting selectively on the turf.
- a punctiform pressure arises, for example, if the striking edge does not hit the turf or a flat mat over it over its entire length, but only because of an unclean meeting point (either with a non-optimal sweep or with a local inclination of the turf) with one end of the striking edge - i.e. a corner - hits the ground.
- the curvature now prevents the impact surface on the turf from being punctiform or running along the striking edge and thereby causing the pressure to rise too much locally. Thanks to the curvature, the impulse is first picked up by the entire platen and distributed to the turf over the entire surface of the platen. In addition, the striking edge of the golf club head cannot penetrate anywhere directly into the ground, since the bulge creates enough buffer from the top of the attachment plate to the turf. In addition, the club head still glides over the bulge upwards towards the golf ball even at a meeting point that is too low, i.e. it is directed away from the ground.
- this contact area is much larger than the area of impact of the club head on the turf in the event of a stroke without a platen. The resulting pressure on the turf is therefore much less.
- the attachment plate By means of the attachment plate according to the invention, on the other hand, it should be specifically prevented that the club head can penetrate into the turf, in particular if the golf club head meets the golf ball improperly, or in the worst case even if the golf ball is not hit at all or is missed tightly.
- the area facing the golf ball is therefore to be dimensioned so large that conventional golf club heads always hit the mounting plate when striking, even if they hit the golf ball in the direction of the shot and / or perpendicular to the direction of the shot (i.e. closer to the golfer or further from away from him).
- the size of the surface can be limited so that the platen overall does not become too large to be easily transported by the golfer, for example in a pocket, in a golf bag, etc.
- the claimed size specification for the surface thus serves as approximate specification of when the platen can provide the best possible protection for the turf underneath.
- Smaller deviations in size upwards or downwards are possible, for example depending on the "handicap" of the golfer: Better golfers (lower "handicap”) may only need a slightly smaller attachment plate because they do not miss the golf ball, but at most something hit unclean.
- an area diameter on the order of twice the golf club head length minus one golf ball diameter is sufficient. Poor golfers, on the other hand, need a larger platen, since failures cannot be ruled out in which the golf ball is missed.
- the surface diameter can be of the order of twice the golf club head length plus a golf ball diameter.
- the average length of the golf club head can be, for example, the head length, which is an average of the usual golf club head lengths, an average of the head lengths of golf clubs with which failures are produced more frequently. and / or represent the maximum or minimum head length of the common (possibly including the rare) rackets.
- winter teas can continue to be placed on the plate to "hit" the golf ball.
- At least the curved surface is preferably made of an elastic material, in particular of PVC (polyvinyl chloride) or PP-EPDM (polypropylene-ethylene / propylene-diene terpolymers).
- PVC polyvinyl chloride
- PP-EPDM polypropylene-ethylene / propylene-diene terpolymers
- the curved surface or the entire platen can be made of an elastic material.
- the materials mentioned are particularly suitable for this, since they are both elastic and shatterproof and also allow easy manufacture of the platen. Thanks to the elasticity of the curved surface, part of the kinetic energy of the golf swing transferred to the platen is temporarily stored in the material. This energy is partly released back into the air after the swing through a reshaping of the elastic surface and partly converted into heat in the material. But this reduces the impulse delivered to the turf. In connection with the enlarged impact surface thanks to the special size of the platen, the pressure on the turf is advantageously further reduced. This is spared even more
- the platen cushions the blows so that the wrists are protected and the racket cannot get caught in the hard floor, which sometimes led to a shaft breakage.
- a backward twist for example, so that it does not roll when it hits the ground, it is necessary to knock out a piece of turf under the ascending ball from the "fairway".
- This effect can also be achieved with the elastic platen
- the mounting plate preferably has essentially the shape of a spherical segment. This symmetrical design of the plate is particularly easy to use, since a special alignment of the platen in the direction of impact does not have to be taken into account.
- the outer curvature can also be achieved by other shapes, for example by a flat pyramid shape or by another simpler or more complicated surface course.
- the course of the surface can be optimized, for example, so that the impact impulse is optimally guided into the material in the direction of impact in the case of a specific alignment of the platen and temporarily stored and passed on to the turf as little as possible.
- the platen preferably has the shape of the curved outer surface of the spherical segment.
- This type of “hollow” design of the attachment plate which is open at the bottom, it is particularly easy to place it on the turf as free of blurring as possible, even on uneven ground, since only the edge of the plate has contact with the ground.
- the attachment plate can also (overall hollow or filled) with a flat bottom portion.
- the diameter of the surface of the attachment plate facing the golf ball is preferably in the range from one to three times the length of an average golf club head.
- the attachment plate preferably has a flattening, depression or recess in the center of the curved surface for the roll-free attachment of the golf ball. This means that the golf ball can be easily placed on the mounting plate to be knocked off, even on slight inclines (inclines or slopes), without rolling. A particularly elastic material that is already in place can also be provided in the central area deformed by the weight of the golf ball so that it prevents the golf ball from rolling.
- the attachment plate preferably has one or more flats, depressions or recesses outside the center of the curved surface for the roll-free attachment of the golf ball. These flattenings, depressions or recesses are particularly preferably provided in addition to the central flattening etc. and serve to ensure that the platen can still be used even with larger inclinations of the subsurface.
- the recess or recess is preferably dimensioned such that conventional winter teas, in particular in the form of hollow truncated cones, can be placed on the mounting plate above the recesses or recesses without falling into it. This means that the platen can be used in particular for knocking off with and without tea and at the same time offers roll protection.
- the surface of the attachment plate facing the golf ball and / or the opposite surface facing the turf is preferably designed as an advertising medium surface. Advertising covers can then be printed, glued or otherwise attached to these areas. As an alternative, special colors can also be applied to these areas, which make it easier to find the platen again if the platen undesirably flew away on impact. These colors can in particular also be matched to the seasons and / or the surface most frequently encountered when striking, against which they should be particularly contrasting.
- Figure 1 is a plan view of a platen according to the invention. 2 shows a cross-sectional view through a platen according to the invention;
- 3a shows a side view of a platen according to the invention with a winter tea and golf ball on it, which stands on an inclined surface
- 3b shows a side view of a further preferred embodiment of a platen according to the invention with a golf ball placed on an inclined surface
- Fig. 4 is a cross-sectional view of a platen according to the invention with winter tea and golf ball attached.
- the platen 1 shows a top view of a disk-shaped mounting plate 1 according to the invention.
- the platen 1 has a circular outer border 2 and a central circular recess 3.
- the platen 1 is made of PVC or PP-EPDM.
- FIG. 2 shows a cross-sectional view of the platen 1 along the section shown with S in FIG. 1.
- the platen 1 has a curved surface 5 in the direction of the golf ball 4 to be placed.
- the curvature runs according to the outer surface of a spherical segment.
- the curvature of the curvature is dimensioned such that the height of the platen 1 does not distance the golf ball 4 too far from the surface and, on the other hand, still provides sufficient deformation space below the platen 1, which is intended to prevent the club head from hitting the surface via the plate material.
- the curvature is dimensioned such that the club head can still stroke over the curved surface at a (possibly not optimal) meeting point in front of or behind the golf ball (viewed in and / or perpendicular to the direction of the stroke) without the golfer feeling too much resistance .
- the platen 1 lies with its outer border 2 on the ground. Unevenness in the base beneath the platen 1 is thus absorbed in the hollow deformation space, so that a blur-free fit of the platen 1 on the surface is ensured.
- the golf ball 4 is placed on the central recess 3 for teeing off.
- the diameter of the circular recess 3 is dimensioned such that the golf ball 4 is only slightly immersed in the recess 3.
- the immersion depth is selected so that the golf ball 4 on the one hand does not roll out of the recess 3 when the mounting plate 1 is slightly inclined and on the other hand hardly experiences any resistance from the mounting plate 1 in the direction of impact.
- the impact Effect at an optimal meeting point as completely as possible on the golf ball 4 and as little as possible on the platen 1.
- FIG 3a shows a side view of a platen 1 with a golf ball 4 “risen” by means of a winter tee 6.
- the platen 1 stands on an inclined surface. Due to the curvature of the surface 5 of the platen 1, there is always an up to a certain inclination of the surface Horizontal section of the surface 5.
- the golfer can place his golf ball 4 with or without winter tea 6 on this horizontal surface section without it rolling off the mounting plate 1. It is thus easily possible, even on gradients of up to 30 ° with respect to the horizontal place the golf ball 4 with the winter tee 6 securely on the platen 1.
- the winter tees 6 do not have a closed bottom section, but only stand with the lower open end of their truncated cone-shaped outer surface 5 on an annular contact surface on the platen 1. This gives them a blur-free surface S tand.
- the mounting plate 1 can have a further recess 7 off-center, as shown in a cross-sectional view in FIG. 3b.
- the off-center recess 7 is dimensioned, for example, like the central recess 3.
- the golf ball 4 can be placed without rolling even with strong inclinations of the ground without a winter tea 6 having to be placed in between.
- Fig. 4 shows a cross-sectional view of the platen 1 with winter tea 6 and golf ball 4, which is placed on a horizontal surface.
- the diameter of the central recess 3 is smaller than the annular base of conventional truncated cone-shaped winter teas 6, so that the winter tea 6 can be placed centrally on the platen 1 without falling through the central recess 3.
- preferred dimensions of the mounting plate are only mentioned by way of example, but are not to be understood as restrictive:
- Diameter of the recess 15 mm;
- Color black, green or signal red.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Road Paving Structures (AREA)
- Golf Clubs (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Looms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19706987A DE19706987C2 (en) | 1997-02-21 | 1997-02-21 | Attachment plate for golf balls |
DE19706987.8 | 1997-02-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998036803A2 true WO1998036803A2 (en) | 1998-08-27 |
WO1998036803A3 WO1998036803A3 (en) | 1998-11-12 |
Family
ID=7821099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000554 WO1998036803A2 (en) | 1997-02-21 | 1998-02-19 | Transportable support plate for golf balls |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE19706987C2 (en) |
WO (1) | WO1998036803A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10061523A1 (en) * | 2000-10-17 | 2002-04-25 | Helmut Mayer | Golf tee has ball rest with at least one aperture cut away so that part of the ball on the rest is exposed for free hitting |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1564212A (en) * | 1925-12-08 | Golf tee | ||
US1692233A (en) * | 1928-11-20 | Golfing tee | ||
US1617232A (en) * | 1926-10-23 | 1927-02-08 | William J Butler | Golf tee |
US1783211A (en) * | 1928-10-10 | 1930-12-02 | William E Baldwin | Golf tee |
US2044838A (en) * | 1932-05-26 | 1936-06-23 | Charles E Douglas | Combined tee and ball lifter |
US4106772A (en) * | 1977-01-04 | 1978-08-15 | Sports Technology Inc. | Golf swing practice base |
US4328969A (en) * | 1980-09-29 | 1982-05-11 | Wright Edwin S | Golf tee |
SE9002922L (en) * | 1990-09-14 | 1992-03-15 | Bo Grenthe | GOLFHJAELPMEDEL |
SE502032C2 (en) * | 1993-12-08 | 1995-07-24 | Hans Lindh | Peganordning |
US5492323A (en) * | 1994-12-05 | 1996-02-20 | Lee; Chih-Ping | Ball support specially designed for golf practice |
JPH0975502A (en) * | 1995-07-12 | 1997-03-25 | Tamapatsuku Kk | Playing ground |
DE29520729U1 (en) * | 1995-12-30 | 1996-05-02 | Dreyfuß, Wilfried, 30855 Langenhagen | Golf tee |
-
1997
- 1997-02-21 DE DE19706987A patent/DE19706987C2/en not_active Expired - Fee Related
- 1997-10-14 DE DE29718154U patent/DE29718154U1/en not_active Expired - Lifetime
-
1998
- 1998-02-19 WO PCT/DE1998/000554 patent/WO1998036803A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
None |
Also Published As
Publication number | Publication date |
---|---|
DE19706987C2 (en) | 1998-12-24 |
WO1998036803A3 (en) | 1998-11-12 |
DE19706987A1 (en) | 1998-05-28 |
DE29718154U1 (en) | 1997-12-04 |
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