U.S. patent application number 12/989121 was filed with the patent office on 2011-05-19 for golf club, in particular golf putter.
Invention is credited to Dieter Ramsauer.
Application Number | 20110118042 12/989121 |
Document ID | / |
Family ID | 40188038 |
Filed Date | 2011-05-19 |
United States Patent
Application |
20110118042 |
Kind Code |
A1 |
Ramsauer; Dieter |
May 19, 2011 |
GOLF CLUB, IN PARTICULAR GOLF PUTTER
Abstract
A golf club with a club head attached to a shaft. The club head
includes a wide front area, a narrower middle area, and a rear
area. A straight line runs from the front area through the middle
area to the rear area, extends perpendicular to the striking face
of the front area viewed from the perspective of the user. A bore
hole along the straight line in the middle area has, on a first
plane, a first marking and has, on a second plane, a second marking
visible to the user through the first opening, the second plane
being farther from the eye of the user than the first plane. The
second marking is visible to the eye of the user within the first
marking when the club head is oriented in a certain way with
respect to the eye of the user.
Inventors: |
Ramsauer; Dieter; (Schwelm,
DE) |
Family ID: |
40188038 |
Appl. No.: |
12/989121 |
Filed: |
August 18, 2008 |
PCT Filed: |
August 18, 2008 |
PCT NO: |
PCT/EP2008/006763 |
371 Date: |
November 15, 2010 |
Current U.S.
Class: |
473/252 ;
473/255; 473/337 |
Current CPC
Class: |
A63B 53/0487 20130101;
A63B 2053/0491 20130101; A63B 53/0441 20200801 |
Class at
Publication: |
473/252 ;
473/255; 473/337 |
International
Class: |
A63B 53/06 20060101
A63B053/06; A63B 53/00 20060101 A63B053/00; A63B 53/04 20060101
A63B053/04 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 23, 2008 |
DE |
20 2008 005 631.4 |
Claims
1. Golf club, in particular golf putter, with a club head (10)
which is attached to a shaft (18) and has a visual alignment aid,
characterized in that the club head (10) comprises a wide front
area (14) which forms the striking face (12) and which also has a
bore hole (16) for receiving the shaft (18), as well as a narrower
middle area (24) and a rear area (26), and in that a straight line
(28) runs from the front area (14) through the middle area (24) to
the rear area (26), which line (28) extends perpendicular (34) to
the striking face (12) of the front area (14) viewed from the
perspective of the user (22).
2. Golf club according to claim 1, characterized in that a bore
hole (40) along the straight line (28) in the middle area (24) has,
on a first plane (44), a first marking (42) which is visible to the
user in the form of a circumferential line such as a circular line
and has, on a second plane (48), a second marking (46) which is
visible to the user (22) through the first opening (40) in the form
of a dot (46) or circular area, which second plane is farther from
the eye of the user than the first plane, wherein the arrangement
is carried out in such a way that the second marking (46) is
visible in a certain way to the eye of the user within the first
marking (42) when the club head (10) is oriented in a certain way
with respect to the eye of the user (22) (200, 30).
3. Golf club according to claim 1, characterized in that a notch or
a plurality of notches (1040, 1140) along the straight line (28) in
the middle area (24) has, on a first plane (44), a first marking
(42) which is visible to the user in the form of a line or line
segments extending perpendicular to the straight line (24) such as
part of a centrally arranged cross or laterally arranged notches
and has, on a second plane (48), a second marking (46) which is
visible to the user (22) through the first opening (40) in the form
of a centrally arranged cross (46) or lines or line segments
parallel to the first line segments, which second plane is farther
from the eye of the user than the first plane, wherein the
arrangement is carried out in such a way that the second marking
(46) is visible in a certain way to the eye of the user lateral to
the first marking (42) when the club head (10) is oriented in a
certain way with respect to the eye of the user (22) (200, 30).
4. Golf club according to claim 2, characterized in that the first
marking is a circular circumference (42) and the second marking is
a circular circumference or circular area (46) with a smaller
radius than the first marking.
5. Golf club according to claim 2, characterized in that the first
marking (142) is a rectangle with the addition of half-circles
having a first, larger radius, while the second marking (146) is a
circle with a second equal or smaller radius.
6. Golf club according to claim 3, characterized in that the first
marking (246) is a circular circumference with notches proceeding
therefrom, these notches extending perpendicular to and parallel to
the straight line (28) and forming a cross, and the second marking
is a cross (246) with the same orientation as the first
marking.
7. Golf club according to one of claims 1 to 6, characterized in
that the middle area (24) has a rectangular hollow profile whose
outer surface serves as the plane for arranging the first marking
(42, 142) and whose inner surface extending parallel to and at a
distance from it serves to accommodate the second marking (46,
146).
8. Golf club according to claim 7, characterized in that at least
one of the two walls of the hollow profile which are perpendicular
to the surfaces for the markings is cut out or transparent to light
in order to illuminate the second marking (46, 146).
9. Golf club according to claim 1, characterized in that a cut-off
bore hole (1040) along the straight line (28) in the middle area
(24) has, on a first plane (44), a first marking (42) which is
visible to the user in the form of a circumferential line such as a
half-circular line and has, on a second plane (48), a second
marking (46) which is visible to the user (22) through the first,
cut-off opening (1040) in the form of a dot (46) or circular area
having lines which run through its center and which are parallel to
and perpendicular to the straight line, which second plane is
farther from the eye of the user than the first plane, wherein the
arrangement is carried out in such a way that the second marking
(46) is visible in a certain way to the eye of the user within the
first marking (42) or as a continuation thereof when the club head
(10) is oriented in a certain way with respect to the eye of the
user (22) (200, 30).
10. Golf club according to claim 9, characterized in that the first
marking marks the edge of the cut-off opening and its cut area
extending perpendicular to the straight line, and in that the
second marking comprises lines which extend parallel to the
perpendicular line lying on the second plane.
11. Golf club according to claim 1, characterized in that notches
are arranged (1140) laterally along the straight line (28) in the
middle area (24) symmetrically with respect to the straight line
and have, on a first plane (44), a first marking (42) which is
visible to the user in the form of a peripheral line and have, on a
second plane (48), a second marking (46) which is visible to the
user (22) past the peripheral line in the form of two lines
parallel to the straight line and dots or dashes arranged at the
latter, which second plane is farther from the eye of the user than
the first plane, wherein the arrangement is carried out in such a
way that the second marking (46) is visible in a certain way to the
eye of the user within or adjoining the first marking (42) when the
club head (10) is oriented in a certain way with respect to the eye
of the user (22) (200, 30).
12. Golf club according to one of claims 1 to 11, characterized in
that the rear area (26) has a receptacle for a weight insert
(52).
13. Golf club according to claim 12, characterized in that the
weight insert (52) extends into the interior of the middle area
(24).
14. Golf club according to claims 1 to 13, characterized in that
the side walls of the middle area (24) are formed by exchangeable
weights (152, 252, 1152, 1252).
15. Golf club according to claim 14, characterized in that two
opposite side walls (e.g., 1152, 152) are clamped to one another
and to the rest of the parts of the head by means of clamping screw
(54, 56).
16. Golf club according to one of claims 1 to 15, characterized in
that the head has the shape of an airplane when viewed from
above.
17. Golf club according to one of claims 1 to 16, characterized in
that a plurality of pairs of markings extending perpendicular to
the straight line (1128, 1328) are provided (1242, 1246, 1242-1,
1246-1, 1242-2, 1246-2) to adjust different angles of attack.
Description
[0001] The present application claims priority from PCT Patent
Application No. PCT/EP2008/006763 filed on Aug. 18, 2008, which
claims priority from German Patent Application No. DE 20 2008 005
631.4 filed on Apr. 23, 2008, the disclosure of which is
incorporated herein by reference in its entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The invention is directed to a golf club, in particular a
golf putter, with a club head which is attached to a shaft and has
a visual alignment aid.
[0004] 2. Description of Related Art
[0005] A golf club head with a visual alignment aid intended to
improve aiming accuracy is known from DE 10 2005 001 153 A1.
[0006] Reference is also made to U.S. Pat. No. 6,068,560, in which
the club head has three parts which together form a rectangle.
[0007] In US 2007/0191136 A1, the club head comprises a cylindrical
metal body. The cylindrical body has openings into which weights
can be screwed.
SUMMARY OF THE INVENTION
[0008] It is the object of the invention to provide a golf club of
the kind mentioned above which allows improved aiming accuracy.
[0009] The above-stated object is met in that the club head
comprises a wide front area which forms the striking face and which
also has a bore hole for receiving the shaft, as well as a narrower
middle area and a rear area, and in that a straight line runs from
the front area through the middle area to the rear area, this
straight line extending perpendicular to the horizontal line of the
striking face of the front area viewed from the perspective of the
user.
[0010] This step allows the user to accurately align the striking
face of the club head so that the probability of successfully
holing the golf ball is increased.
[0011] According to a further development of the invention, a golf
club is characterized in that a bore hole along the straight line
in the middle area has, on a first plane, a first marking which is
visible to the user in the form of a circumferential line such as a
circular line and has, on a second plane, a second marking which is
visible to the user through the first opening in the form of a dot
or circular area, which second plane is farther from the eye of the
user than the first plane, the arrangement being carried out in
such a way that the second marking is visible in a certain way to
the eye of the user within the first marking when the club head is
oriented in a certain way with respect to the eye of the user.
[0012] This makes it possible to align the vertical line of the
striking face of the golf club head more accurately, particularly
to adjust the angle of attack of the striking face with respect to
the ground plane.
[0013] According to an alternative further development, a golf club
is characterized in that a notch or a plurality of notches along
the straight line in the middle area has, on a first plane, a first
marking which is visible to the user in the form of a line or line
segments extending perpendicular to the straight line such as part
of a centrally arranged cross or laterally arranged notches and
has, on a second plane, a second marking which is visible to the
user through the first opening in the form of a centrally arranged
cross or lines or line segments parallel to the first line
segments, which second plane is farther from the eye of the user
than the first plane, the arrangement being carried out in such a
way that the second marking is visible in a certain way to the eye
of the user lateral to the first marking when the club head is
oriented in a certain way with respect to the eye of the user.
[0014] The first marking can be, or can include, a circular
circumference and the second marking can be, or can include, a
circular circumference or circular area with the same or a smaller
diameter or radius.
[0015] On the other hand, the first marking can also be a rectangle
with the addition of half-circles having a first, larger radius,
while the second marking is a circle with a second radius that is
equal to or less than the radius of the first marking.
[0016] According to another embodiment form, the first marking is a
circular circumference with notches proceeding therefrom, these
notches extending perpendicular to and parallel to the straight
line and forming a cross, and the second marking is a cross with
the same orientation as the first marking.
[0017] According to another further development of the invention,
the middle area has a rectangular hollow profile whose outer
surface serves as the plane for arranging the first marking and
whose inner surface extending parallel to and at a distance from it
serves to accommodate the second marking.
[0018] At least one of the two walls of the hollow profile which
are perpendicular to the surfaces for the markings can be cut out
or can be transparent to light in order to illuminate the second
marking.
[0019] According to another embodiment form, the golf club is
characterized in that a cut-off bore hole along the straight line
in the middle area has, on a first plane, a first marking which is
visible to the user in the form of a circumferential line such as a
half-circular line and has, on a second plane, a second marking
which is visible to the user through the first cut-off opening in
the form of a dot or circular area having lines which run through
its center and which are parallel to and perpendicular to the
straight line, which second plane is farther from the eye of the
user than the first plane, the arrangement being carried out in
such a way that the second marking is visible in a certain way to
the eye of the user within the first marking or as a continuation
thereof when the club head is oriented in a certain way with
respect to the eye of the user.
[0020] The golf club can be designed in such a way that the first
marking marks the edge of the cut-off opening and its cut area
extending perpendicular to the straight line, and that the second
marking comprises lines which extend parallel to the perpendicular
line lying on the second plane).
[0021] According to yet another construction, notches are arranged
laterally along the straight line in the middle area symmetrically
with respect to the straight line and have, on a first plane, a
first marking which is visible to the user in the form of a
peripheral line and have, on a second plane, a second marking which
is visible to the user past the peripheral line in the form of two
lines parallel to the straight line and dots or dashes arranged at
the latter, which second plane is farther from the eye of the user
than the first plane, the arrangement being carried out in such a
way that the second marking is visible in a certain way to the eye
of the user within or adjoining the first marking when the club
head is oriented in a certain way with respect to the eye of the
user.
[0022] The arrangement according to the invention also makes it
possible to carry out a receptacle for a weight insert in the rear
area.
[0023] The weight insert can extend into the interior of the middle
area.
[0024] The side walls of the middle area can be formed by
exchangeable weights.
[0025] Weights of the kind mentioned above can be fastened in such
a way that two opposite side walls can be clamped to one another
and to the rest of the parts of the head by means of a clamping
screw.
[0026] The head can have the shape of an airplane viewed from
above.
[0027] For the purpose of adjusting different angles of attack, a
plurality of pairs of markings extending perpendicular to the
straight line can be provided, and the markings of a pair are
offset differently in direction of the straight line.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] FIG. 1 shows a top view of an embodiment form of the club
head according to the invention;
[0029] FIG. 2 shows a perspective view of the right-hand side of
the club head referring to FIG. 1;
[0030] FIG. 3 shows a perspective view of the left-hand side of the
club head shown in FIG. 1;
[0031] FIG. 4 shows an exploded diagram, in perspective, of the
embodiment form according to FIG. 1 which can be outfitted with
weights;
[0032] FIG. 5A shows a side view of the user of the club head
provided with a shaft in a first visual alignment position;
[0033] FIG. 5B shows a similar view of the user, but from the
front;
[0034] FIG. 6A shows an embodiment form with a round alignment bore
hole;
[0035] FIG. 6B shows an alternative embodiment form with an
elongated alignment hole;
[0036] FIG. 7 shows a perspective view of an embodiment form in
which weights can be screwed in;
[0037] FIG. 8A shows a sectional view of the arrangement for
receiving the weights;
[0038] FIG. 8B shows an enlarged view of this end;
[0039] FIGS. 9A to 9G show different views of an embodiment form
with a cross-shaped marking;
[0040] FIGS. 10A to 10F show different views of an embodiment form
with a cut-off, shortened first marking surface;
[0041] FIGS. 11A to 11F show different views of an embodiment form
in which the straight line is not interrupted by openings;
[0042] FIGS. 12A to 12F show different views of an embodiment form
with a marking similar to that shown in FIG. 6B, but wherein a
plurality of markings are provided to implement different angles of
attack; and
[0043] FIGS. 13A to 13F show different views of an embodiment form
with marking similar to FIG. 6A, but wherein a plurality of these
markings are provided to implement different angles of attack.
DETAILED DESCRIPTION OF EMBODIMENTS
[0044] It is to be understood that the figures and descriptions of
the present invention have been simplified to illustrate elements
that are relevant for a clear understanding of the present
invention, while eliminating, for purposes of clarity, many other
elements which are conventional in this art. Those of ordinary
skill in the art will recognize that other elements are desirable
for implementing the present invention. However, because such
elements are well known in the art, and because they do not
facilitate a better understanding of the present invention, a
discussion of such elements is not provided herein.
[0045] The present invention will now be described in detail on the
basis of exemplary embodiments.
[0046] FIG. 1 shows a club head 10 which comprises a wide front
area 14 which forms the striking face 12 and which also has a bore
hole 16 for receiving the shaft 18 (see FIG. 5A), at whose other
end is a grip 20 which is grasped by the golfer 22.
[0047] Further, the club head 10 has a narrower middle area 24 and
a rear area 26 which is again wider in this instance. As can
further be seen from FIG. 1, a straight line 28 runs from the front
area 14 over the middle area 24 to the rear area 26. This line 28
extends perpendicular to the striking face 12 of the front area 14
from the point of view of the user 22, but is at least
perpendicular to the horizontal line 13 of the striking face 12.
This line of sight is designated by 30, 32 (for the two eyes of the
user) in FIG. 5B. The right angle between line 28 and the striking
face 12 or its horizontal line 13 is indicated in FIG. 1 at 34.
Accordingly, the golfer will adjust the line 28 of the club head 10
until it is aligned with the target of the golf ball (i.e., the cup
or hole).
[0048] However, for a successful stroke, the vertical alignment of
the striking face 12 with respect to the plane of the ground on
which the ball will move is also important. In order to lift the
ball slightly, the striking face 12 must not be exactly
perpendicular to the substrate (i.e., the grass surface of the golf
course), but must form a somewhat larger angle 36.
[0049] Accordingly, the angle 36 should be adjusted as precisely as
possible so that the golf ball, after gliding briefly, starts to
roll and does not bounce and only start to roll later, which could
happen when the angle 36 is too large (e.g., 97.degree.).
[0050] Therefore, the angle 36 formed by the striking face 12
relative to the ground surface 38 should be adjustable in a precise
manner. An alignment arrangement is provided for this purpose and
will now be described.
[0051] A bore hole 40 (see FIG. 6A) is provided along the straight
line 28 in the middle area 24. This bore hole 40 has, on a first
plane 44, a first marking in the form of a circumferential line
such as a circular line 42 which is visible to the golfer 22 and,
on a second plane 48, a second marking 46 in the shape of a dot or
a circular area which is visible to the golfer 22 through the first
bore hole 40. This arrangement is carried out in such a way that
the second marking 46 is visible to the eye of the user in a
certain manner within the first marking 42 when the club head is
aligned in a certain way with respect to the eye of the user (see
FIG. 5B). For example, the dot 46 is located exactly in the center
of the circle 42.
[0052] An embodiment form, shown in FIG. 6B, is provided so that
the above-mentioned optimal position can be diverged from, which
may be advantageous in some cases. In this embodiment form, the
first marking 140 is a rectangle in which are inserted half-circles
or an oval having a first radius, while the second marking 46 is a
circle 146 having a second radius equal to or less than the first
radius. In this case, also, the different planes make it possible
to adjust the angle 36 so as to diverge from 90.degree., which
influences the sliding properties and rolling properties of the
golf ball when struck.
[0053] In order for the marking 46, 146 to be seen, sufficient
light must fall on the plane 48 to make the circle or marking 46,
146 arranged on it visible. The marking can be a red dot on a
silver surface, for example.
[0054] To allow daylight to strike these areas, it can be useful
when at least one of the two walls of the hollow profile which
extend perpendicular to the surfaces for the markings is cut out or
made transparent to light (see FIG. 4, in which the walls are cut
out). FIG. 7 also shows a view without side walls. In this case, a
receptacle 50 for a weight insert 52 is provided in the rear area
226. This weight insert 52 can extend into the interior of the
middle area, but not so far that the marking dot 246 is concealed.
A plurality of weight inserts 52 can be provided, each one being
fitted to the appropriate weight. The weight reduction can be
carried out, for example, in that the length of the weight insert
52 varies. FIG. 7 shows three different lengths.
[0055] The weight insert 52 can have a screw-in thread 54 which can
be received in a corresponding bore hole 50 having a thread.
[0056] According to FIG. 4, however, the side walls of the hollow
profile can also be formed by exchangeable weights 152 or 252. For
reasons of symmetry, it is advisable that two opposite side walls
are formed by weights 152 or 252 of this kind. These side walls can
be clamped together or clamped to the rest of the parts of the head
by means of a clamping screw 54. For this purpose, one side wall or
clamping piece can have a threaded borehole 56 fitting the thread
of the threaded screw 54.
[0057] In this case, also, inserts 152, 252 of different lengths
represent different weights.
[0058] The head can have the shape of an airplane when viewed from
above.
[0059] FIGS. 9A to 9G show different views of an embodiment form in
which a slit lies over the bore hole 940 forming a cross. The
marking 946, which is likewise cross-shaped and which is located on
the second plane 948, can be sighted through this cross-shaped
aperture. This embodiment form allows a very precise alignment.
[0060] FIGS. 10A to 10F show different views of an embodiment form
with a cut-off (i.e., shortened) first marking surface 1044 for a
marking 1040 which, when precisely aligned, is continuous with the
marking lines 1040 of the second plane 1048. Large deviations can
be detected and corrected more quickly in this way.
[0061] FIGS. 11A to 11F show different views of an embodiment form
with an uninterrupted straight line 1128. The alignment of the
markings 1146 and 1147, respectively, of the lower plane is carried
out by aligning in the edge slots 1140 of the first, upper plane
1144 and by sighting the two edge markings 1147 of the lower,
somewhat wider plane 1148 along the edges 1141 of the upper,
somewhat narrower plane 1144. In this case, also, deviations are
detected faster because at least one marking strip 1147 and its
deviation are always visible.
[0062] Different golf courses may require different angles of
attack 36. In order to take this into account, the relevant marking
(e.g., the bore hole or circular line 40, 42 according to FIG. 4 or
the slot 1140 according to FIG. 11E) can be provided plurally in
different positions (see reference numbers 42-1 and 1140-1).
[0063] But FIGS. 12A to 12F in particular show different views of
an embodiment form with a pair of markings 1242, 1246 similar to
the marking pair 142, 146 in FIG. 6B, a plurality of which are
provided (1242-1, 1246-1 and 1242-2, 1246-2) in order to realize
different angles of attack 36 through the selection of a
corresponding pair in that the lower marking dots 1246, 1246-1 and
1246-2 are displaced by different distances along the straight line
1228 relative to the associated upper marking dots 1242, 1242-1 and
1242-2.
[0064] FIGS. 13A to 13F show different views of an embodiment form
with marking pairs 1342, 1346, and so on, similar to FIG. 6A, a
plurality of which--three, in this instance as in the previous
instance--are again provided in order to realize different angles
of attack.
COMMERCIAL APPLICABILITY
[0065] The invention is commercially applicable in golf club
construction.
[0066] While this invention has been described in conjunction with
the specific embodiments outlined above, it is evident that many
alternatives, modifications, and variations will be apparent to
those skilled in the art. Accordingly, the preferred embodiments of
the invention as set forth above are intended to be illustrative,
not limiting. Various changes may be made without departing from
the spirit and scope of the inventions as defined in the following
claims.
REFERENCE NUMBERS
[0067] 10 club head [0068] 12 striking face [0069] 14 front area
[0070] 16 bore hole for [0071] 18 shaft [0072] 20 grip [0073] 22
golfer [0074] 24 middle area [0075] 26, 226 rear area [0076] 28,
1128 straight line [0077] 30, 32 lines of sight of the two eyes of
the golfer [0078] 34 angle [0079] 36 angle [0080] 38 ground surface
[0081] 40, 940, 1040 bore hole [0082] 1141 edge [0083] 42, 142
circular line, oval line [0084] 44, 144, 44, 1044, 1144 first plane
[0085] 46, 146, 246, 94, 1046, 1146 dot [0086] 1147 marking strips
[0087] 48, 148, 948, 1048 second plane [0088] 50 receptacle [0089]
52, 152, 252, 1152, 1252 weight insert [0090] 54 clamping screw
[0091] 56 threaded bore hole
* * * * *