Putter with alignment aid

Abstract

A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Claims

1. A golf club head comprising: a body portion comprising a striking face, a rear surface opposite the striking face, an upper portion, a lower portion having an upper surface and a lower surface, a heel side, and a toe side; at least one support bar attached to, and extending away from, the body portion; an alignment ring suspended from the at least one support bar by at least one stem; and an alignment structure affixed to the upper surface of the lower portion and vertically aligned with the alignment ring along a vertical Z axis, wherein the alignment structure does not make direct contact with the at least one support bar or the alignment ring, and wherein the alignment ring is spaced from, and does not make direct contact with, any portion of the body portion.

2. The golf club head of claim 1, wherein the alignment structure is removably affixed to the upper surface of the lower portion.

3. The golf club head of claim 2, further comprising a bolt, wherein the lower portion comprises a threaded through-bore extending from the lower surface to the upper surface, wherein the alignment structure comprises a threaded receiving bore, and wherein a portion of the bolt extends through the threaded through-bore to engage the threaded receiving bore.

4. The golf club head of claim 1, wherein the lower portion comprises a heel-side portion having a first front-to-back length, a middle portion having a second front-to-back length, and a toe-side portion having a third front-to-back length, wherein the second front-to-back length is less than the first and third front-to-back lengths.

5. The golf club head of claim 4, wherein the first front-to-back length is approximately equivalent to the third front-to-back length.

6. The golf club head of claim 1, wherein the alignment structure is a sphere.

7. The golf club head of claim 6, wherein the sphere comprises a first color, wherein the alignment ring comprises a second color, and wherein the first color contrasts with the second color.

8. The golf club head of claim 7, wherein the at least one support bar comprises a third color, wherein the third color contrasts with the first color and the second color.

9. The golf club head of claim 7, wherein the rear surface of the striking face comprises a fourth color, and wherein the fourth color contrasts with the first color.

10. The golf club head of claim 7, wherein the upper surface comprises a fifth color, and wherein the fifth color contrasts with the first color.

11. The golf club head of claim 1, wherein the alignment structure is a cylinder comprising at least one fiber optic filament.

12. The golf club head of claim 11, wherein the at least one fiber optic filament is coiled within the cylinder.

13. The golf club head of claim 1, wherein the upper portion comprises an alignment line extending perpendicular to the striking face, and wherein the alignment line is aligned with the alignment ring along a horizontal x-axis extending perpendicular to the striking face in a front-to-back direction.

14. The golf club head of claim 1, further comprising a face insert received within the striking face.

15. The golf club head of claim 1, wherein the body is composed of a material selected from a group consisting of titanium alloy and stainless steel, and wherein the alignment structure is formed of a material selected from a group consisting of aluminum alloy, carbon composite, and plastic.

16. A golf club head comprising: a body portion comprising a striking face, a rear surface opposite the striking face, an upper portion, a lower portion having an upper surface and a lower surface, a heel side, a toe side, and a recess in the striking face; at least one support bar attached to, and extending away from, the body portion; a face insert; an alignment ring; at least one stem attached to, and extending from, a rearmost end of the at least one support bar to the alignment ring; and an alignment sphere removably affixed to the upper surface of the lower portion and vertically aligned with the alignment ring along a vertical Z axis, wherein the face insert is disposed within the recess in the striking face, wherein at least a portion of the at least one support bar extends approximately perpendicular to the rear surface of the body portion, wherein the alignment sphere does not make direct contact with the at least one support bar or the alignment ring, and wherein the alignment ring is spaced from, and does not make direct contact with, any portion of the body portion.

17. The golf club head of claim 16, wherein the body is composed of a material selected from a group consisting of titanium alloy and stainless steel.

18. The golf club head of claim 16, wherein the alignment sphere is formed of a material selected from a group consisting of aluminum alloy, carbon composite, and plastic.

19. The golf club head of claim 16, wherein the alignment sphere comprises a first color, wherein the alignment ring comprises a second color, and wherein the first color contrasts with the second color.

20. The golf club head of claim 16, further comprising a bolt, wherein the lower portion comprises a threaded through-bore extending from the lower surface to the upper surface, wherein the alignment structure comprises a threaded receiving bore, and wherein a portion of the bolt extends through the threaded through-bore to engage the threaded receiving bore.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) FIG. 1 is a rear perspective view of a first embodiment of the putter head of the present invention.

(2) FIG. 2 is a top plan view of the embodiment shown in FIG. 1.

(3) FIG. 3 is a bottom plan view of the embodiment shown in FIG. 1.

(4) FIG. 4 is a rear elevational view of the embodiment shown in FIG. 1.

(5) FIG. 5 is a front elevational view of the embodiment shown in FIG. 1.

(6) FIG. 6 is another rear perspective view of the putter head shown in FIG. 1.

(7) FIG. 7 is a cross-sectional view of the embodiment shown in FIG. 4 along lines 7-7.

(8) FIG. 8 is a rear perspective view of the embodiment shown in FIG. 1 without the alignment sphere.

(9) FIG. 9 is a rear perspective view of the embodiment shown in FIG. 1 without the alignment sphere or the bolt.

(10) FIG. 10 is a side perspective view of the alignment sphere engaged with the bolt.

(11) FIG. 11 is a bottom plan view of a second embodiment of the putter head of the present invention.

(12) FIG. 12 is a top plan view of the embodiment shown in FIG. 11.

(13) FIG. 13 is a front elevational view of the embodiment shown in FIG. 11.

(14) FIG. 14 is a rear elevational view of the embodiment shown in FIG. 11.

(15) FIG. 15 is a side perspective view of an alignment cylinder.

DETAILED DESCRIPTION OF THE INVENTION

(16) The present invention is directed to a golf club head, and particularly a putter head, with a removable alignment structure and an alignment ring or sighting structure disposed vertically above the alignment structure. Before striking a golf ball, a golfer can confirm that the putter is properly oriented by aligning his or her head over the putter head so that the alignment structure appears to be entirely bounded within the alignment ring or sight structure.

(17) A preferred embodiment of the putter head 10 of the present invention is shown in FIGS. 1-10. The putter head 10 comprises a body portion 20 having a heel side 22 proximate a hosel 25, a toe side 24, a striking face 30 with a recess 34 sized to receive a face insert 35, a rear surface 40 opposite to, and extending approximately parallel with, the striking face 30, an upper portion 50 extending approximately perpendicular to the striking face 30 from an upper edge 31 of the striking face 30, and a lower portion 60 or flange extending approximately perpendicular to the striking face 30 from a lower edge 32 of the striking face 30 and comprising an aft edge 65, a lower surface 62, and an upper surface 66. The upper surface 66 has a first region 66a disposed directly behind the rear surface 40 and a second region 66b encircling the first region 66a, and the lower portion 60 has at least one through-opening or hole 68 proximate the aft edge 65. The upper portion 50 of the body 20 preferably includes an alignment line 55 that extends perpendicular to the striking face 30 along a horizontal x-axis, and is approximately centered between the heel side 22 and the toe side 24 along a horizontal y-axis extending parallel with the striking face 30.

(18) The putter head 10 also includes a U-shaped support bar 70 having a first end 72 affixed to the body 20 towards the heel side 22, a midsection 74, and a second end 76 affixed to the body 20 towards the toe side 24. The support bar 70, which preferably is integrally formed with the body 20 but may be formed separately and then permanently affixed to the body 20, extends from the body 20 over the lower portion 60 toward the aft edge 65 so that the midsection 74 is suspended over the hole 68, though in alternative embodiments the lower portion 60 may lack the hole 68 entirely and the support bar 70 may be suspended completely over the upper surface 66 of the lower portion 60. A stem 82 extends from the midsection 75 towards the body 20 and supports an alignment ring 84 that is suspended vertically over the first upper surface region 66a. No portion of the alignment ring 84, which is spaced from the support bar 70 by the stem 82 and is centered between the heel and toe sides 22, 24 of the body along the horizontal y-axis, directly contacts the body 20 or the support bar 70.

(19) The lower portion 60 of the body 20 also includes a threaded through-bore 63 that extends from the lower surface 62 through the first upper surface region 66a and is vertically aligned with the alignment ring 84 along a vertical z-axis 100. The threaded portion 112 of a bolt 110 extends through the threaded through-bore 63 and engages the threaded bore 92 of an alignment sphere 90 to removably affix the alignment sphere 90 to the first upper surface region 66a of the lower portion 60. When the threaded portion 112 is fully engaged with the threaded through-bore 63 and the alignment sphere 90, the head 114 of the bolt abuts the lower surface 62 of the lower portion 60. When the alignment sphere 90 is secured to the lower portion 60 via the bolt 110, it is vertically aligned with the alignment ring 84 along the vertical z-axis 100 and appears to be encircled by the alignment ring 84 when a golfer has properly aligned her head over the putter head 10 at address before striking a golf ball.

(20) Another embodiment of the present invention is shown in FIGS. 11-14. In this embodiment, the putter head 10 has many of the same features as the preferred embodiment, except that instead of a single, U-shaped support bar 70, first and second support bars 170, 175 extend away from the body 20 approximately parallel to one another and perpendicular to the rear surface 40 along the horizontal x-axis, and a pair of stems 180, 182 extend from the rearmost ends 171, 176 of the support bars at less than a 90 angle with respect to the support bars 170, 175 to connect the support bars 170, 175 to the alignment ring 84. Like in the preferred embodiment, the alignment ring 84 is suspended over the first upper surface region 66a of the lower portion 60, but in this embodiment, the entirety of each support bar 170, 175 is also suspended over the lower portion 60 instead over through-holes 68a, 68b, which in this embodiment are disposed at heel and toe sides 160, 165 of the lower portion 60. The lower portion 60 of the body 20 in this second embodiment has a heel side 160 with a first length L.sub.1, a middle portion 164 with a second length L.sub.2, and a toe side 165 with a third length L.sub.3. As shown in FIGS. 11 and 12, the first and third lengths L.sub.1, L.sub.3 are preferably approximately equivalent to one another and are greater than the second length L.sub.2.

(21) In each of the embodiments disclosed herein, the alignment sphere 90 has a first color that contrasts with other parts of the putter head 10, and particularly the alignment ring 84, so as to maximize its visibility to a golfer. The first color also preferably contrasts with the color of the rear surface 40 of the body 20, the upper surface 66 of the lower portion 60, and with the support bars 70, 170, 175. In particular, the alignment sphere 90 preferably is red, the support bars 70, 170, 175 are white, the alignment ring 84 and upper surface 66 is black or dark gray, and the rear surface 40 is dark or light gray.

(22) In an alternative embodiment, the alignment sphere 90 may be replaced with a cylinder 120 that includes one or more coiled fiber optic filaments 122 that can catch the light and make the cylinder 120 appear to glow when the putter head 10 is in use. The fiber optic filaments 122 preferably have the same color green as that of a putting green to assist with alignment. The cylinder 120 includes a threaded bore 92 at one end so that it can be removably affixed to the upper surface 66 of the lower portion 60.

(23) The body 20 of the putter head 10 preferably is composed of a high strength material, such as titanium alloy or stainless steel, while the alignment sphere 90 is formed of a lighter weight material such as aluminum ally, carbon composite, or plastic to reduce the overall weight of the putter head 10 and ensure a low center of gravity. The material composition of the different parts of the putter head 10 can, however, be adjusted as desired by the golfer to change the center of gravity location.

(24) From the foregoing it is believed that those skilled in the pertinent art will recognize the meritorious advancement of this invention and will readily understand that while the present invention has been described in association with a preferred embodiment thereof, and other embodiments illustrated in the accompanying drawings, numerous changes, modifications and substitutions of equivalents may be made therein without departing from the spirit and scope of this invention which is intended to be unlimited by the foregoing except as may appear in the following appended claims. Therefore, the embodiments of the invention in which an exclusive property or privilege is claimed are defined in the following appended claims.