| Club head for a golfing putter -> Monitor Keywords |
|
|
 
Club head for a golfing putterRelated Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, Head, PutterClub head for a golfing putter description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070191135, Club head for a golfing putter. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The invention relates to a club head for a golfing putter, more particularly a putter head which is wing-shaped, seen from above, and exhibits a large moment of inertia about a horizontal axis (z-axis) and about a vertical axis (x-axis) through the mass centre of the putter relative to the mass of the club head. This means reduced loss in speed and direction if the golf ball is hit by the putter outside the putter's "sweet spot" (the point on the striking face located on the line of movement of the centre of gravity of the club head). The invention also relates to stabilizing aids for the wings of the club head and aiming aids integrated in the club head. [0002] Conventional putters are designed as "heel/toe-weighted" or with a so-called "mallet" shape. [0003] Heal/toe-weighted putters have a large moment of inertia about the x-axis, thereby giving little loss in speed and direction in horizontal mishits. On the other hand, the moment of inertia about the z-axis is low, so that the loss in speed in vertical mishits will be large. [0004] Mallet putters have a relatively large moment of inertia about the z-axis, and the loss in speed in vertical mishits is relatively small. On the other hand, the moment of inertia about the x-axis is relatively small, so that the loss in speed and direction in horizontal mishits is relatively large. [0005] US patent application 2003/013546 A1 discloses a wing-shaped putter head with toe and heel wings projecting rearwards in diverging directions from the face. The mass centre has been given a favourable position in that recesses in the body of the putter head are filled with a lighter material, preferably an elastomer like polyurethane. [0006] U.S. Pat. No. 6,270,422 B1 discloses a putter with detachable heel and toe wings, in which, on a top surface of each of the wings and on the club head, are placed aiming aids in the form of line markings in the surfaces located in a horizontal plane perpendicular to the face of the club head. [0007] U.S. Pat. No. 5,470,070 discloses a T-shaped putter head with aiming lines placed in an upper club surface and placed in a horizontal plane perpendicular to the face of the club head. [0008] WO publication 01/91860 A1 discloses a symmetrical putter head suitable for both right-handed and left-handed players, in which aiming lines are placed in the upper surface of the club head. [0009] It is of great importance for the striking properties of a putter club that in the moment of striking, the position of the club head is affected to the least possible degree by the collision with the ball. In the ideal stroke the putter hits the ball on the sweet spot. The effective mass moving in the stroke is not just the club head, but also parts of the shaft. The sweet spot (centre of rotation) of a shafted club is located higher than the sweet spot (centre of gravity) of the club head alone. In practice, most putters have the sweet spot higher than the centre of the striking face. Most players hit the ball with the striking face centre. Thus, it is beneficial to move club head mass down, so that the real sweet spot of the club is lowered towards the centre of the striking face. [0010] In addition, an important factor for good performances in putting is to be able to aim the putter at the right angle towards the target. To make the aiming easier, there are different designs, in which lines or circles on the club head, or the shape of the lower part of the shaft, form(s) virtual aiming line(s) assuming a direction perpendicular to the striking face of the putter, viewed from above. [0011] The invention has as its object to remedy the drawbacks of the prior art. [0012] The object is achieved through the features specified in the description below and in the following claims. [0013] According to the prior art a club head for a putter has a wing shape, a toe wing extending rearwards from a toe portion of the club head and in a direction away from a striking face of a front portion of the club head, and a heel wing extending rearwards from a heel portion of the club head and in a direction away from the striking face of the club head. The outer side edges of the wings may have diverging directions, viewed from the striking face of the club head. [0014] The club head is suitably provided with an essentially transversal connection bracing the wings and extending between the outer wing portions of the opposite wings, possibly as a connection between the outer wing portion of each wing and a front portion of the club head, possibly as a combination of the bracing methods mentioned. [0015] The mass centre of the club head is located lower than the centre of the striking face. This is achieved by the wings advantageously having, in a front portion and a middle portion, an approximately L-shaped cross-section. Even other cross-sectional shapes that will give a predominant amount of mass in the lower portion of the wings can be used. [0016] Alternatively, the position of the mass centre can be lowered by the use of a light material, for example aluminium, in the upper portions of the club head, combined with a heavy material, for example tungsten, in the lower portions of the club head. [0017] Towards the rear end portion of the wings, the thickness of the vertical wall increases, while at the same time, the width of the wings increases. Thereby much mass is also placed at the rear of the wings, so that the moment of inertia of the club head about a vertical axis through the sweet spot will be large. [0018] The moment of inertia of the club head about the vertical axis can also be increased by use of a light material, for example aluminium, in the mid portions of the club head, combined with a heavy material, for example tungsten, in the outer portions of the club head. It is also favourable for the club head to exhibit a large moment of inertia about a horizontal transversal axis through the sweet spot. This is achieved by using a heavy material in the club head's rear and outer portions, that is to say, the furthest out in the wings, whereas a light material is used in the mid portions and front portions of the club head. [0019] The lower, internal edge surfaces of the wings are parallel and at right angles to the striking face, viewed in a horizontal plane, thereby forming an aiming aid. Parallel to the lower, internal edge surfaces of the wings, the wings are advantageously provided with an additional aiming aid in the form of aiming line markings. [0020] Alternatively or in addition to the above-mentioned aiming aids, each of the wings may be provided with an aiming aid in the form of one or more aiming line markings on a wing top surface, the aiming line markings being, in a horizontal plane, at right angles to the face. [0021] Alternatively, the club head may be provided with aiming aids placed on or integrated in the bracing connections between the wings and/or between the wings and the front portion of the club head. [0022] The front portion of the club head comprises the striking face, the toe portion, the heel portion and a shaft-connecting portion. [0023] In the shaft-connecting portion the front club portion advantageously has an L-shaped cross-section for the purpose of placing a predominant amount of mass in the lower portion of the club head. Alternatively the shaft-connecting portion has a cross-section approximating a lying U-shape, in which an upper side surface and a lower side surface are formed to provide a stable attachment for a shaft without a large club mass being placed in this area. The U-shaped shaft-connecting portion gradually merges into a cross-section of an approximate L-shape or other cross-sectional shape giving a predominant amount of mass in the lower portion of the club head. [0024] In the transition between the toe portion and the toe wing, the heel portion and heel wing, respectively, the thickness of the vertical wall is suitably increased to provide sufficient stability for the wings. Continue reading about Club head for a golfing putter... Full patent description for Club head for a golfing putter Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Club head for a golfing putter patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Club head for a golfing putter or other areas of interest. ### Previous Patent Application: Golf club head for putter, and golf putter Next Patent Application: Curved golf putter Industry Class: Games using tangible projectile ### FreshPatents.com Support Thank you for viewing the Club head for a golfing putter patent info. IP-related news and info Results in 0.13474 seconds Other interesting Feshpatents.com categories: Canon USA , Celera Genomics , Cephalon, Inc. , Cingular Wireless , Clorox , Colgate-Palmolive , Corning , Cymer , 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
