JP3132379U - Improvement of the coupling structure of golf club heads made of different metals - Google Patents

Abstract

A golf club head and face plate coupling structure is improved to reduce weight and improve productivity.
A face plate 20 is made of a light alloy such as titanium and is cup-shaped with respect to a steel club head main body 10, a groove 11 is formed on the outer peripheral edge of the club head main body, and a convex edge is fitted to the peripheral edge of the face plate A part 20A is formed, and the two are fitted and combined, coupled, threaded from the face plate surface, fastened with a screw coupler made of the same material as the face plate, and the coupling hole 21 is welded and secured To do. Since the club head main body and the face plate are firmly coupled and reduced in weight, the meat spot is expanded, the coefficient of restitution and the resilience are improved, and the manufacture is facilitated.
[Selection] Figure 1

Description

  The present invention relates to an improved structure for connecting golf club heads made of different metals, and in particular, a club head body and a cup-type face plate made of titanium or a titanium alloy are connected by threading with a titanium material fastener and welding. The club head body and face plate are closely integrated and integrated, the club head part's meat spot is expanded, the hitting point is easy to hit the meat spot when hitting the ball, and the restitution coefficient of the face plate, Provided is a golf club head that has improved elasticity and sound reverberation, and that the acceleration of gravity works better when the ball is hit, makes it easier to hit, and allows the user to enjoy golf more.

  Various improvements have been made in conventional golf club designs, including iron or wood shafts. In golf clubs, the club head is an important part of determining the hit ball.

  When manufacturing club heads, various international standards have been established, ranging from club head weight, volume, and angle to inspection based on precise design and precise manufacturing processes. .

  The material usually used for the club head is generally steel or steel fiber, but this makes it impossible to reduce the weight of the head part, and the head is likely to shake, and the best numerical value cannot be obtained even in the test of the coefficient of restitution and elasticity.

In addition, the means for joining the face plate and club head made of titanium or titanium alloy is usually performed only by welding, but in the case of titanium or titanium alloy face plate and steel or steel fiber, there is a substance specific between them. There are differences in properties (for example, differences in melting point, thermal conductivity, expansion coefficient, etc.), and welding requires plating and chemically special welding methods. Are difficult to manufacture, have defects in the manufacturing process, and are likely to occur when two dissimilar metals are welded. .
JP 2004-261470 A JP 2006-296558 A

  In order to solve the above-mentioned problems, an improved coupling structure for a golf club head made of this dissimilar metal has been devised.

  Focusing on the fact that titanium or titanium alloy is not easily rusted, lightweight, and excellent in strength, the present inventors have devised a combination of titanium and titanium alloy faceplates and heads suitable for golf club head performance.

  In particular, the face plate made of cup-type titanium or titanium alloy has been integrated by threading with a titanium fastener and welding to achieve close integration of the club head body and face plate. did.

  This club head is composed of a club head main body, a cup-type face plate made of titanium or titanium alloy, and a fastener made of titanium material, and makes a round along the front edge of the club head main body by CNC machining. A concave groove is provided, and the rear surface of the face plate is similarly provided so that a convex edge portion by CNC processing is aligned with the above-mentioned concave groove, and both are coupled by threading with a titanium material fastener and welding.

  With the above structure, the club head main body and the face plate are further integrated and prevented from peeling off, and the face plate utilizing the characteristics of titanium reduces the weight, rebound index, and elasticity. As a result, a golf club head that is easier to use for the user can be obtained.

  Next, the present invention will be described in more detail with reference to the drawings. In the club head main body 10 and the face plate 20 of the present invention shown in FIGS. 1 and 2, the club head main body 10 is attached to any iron shaft (FIGS. 2 and 3), or Although a wood shaft (FIG. 4) can be attached, all will be described below with an iron.

  A groove 11 formed by CNC machining is formed around the front edge of the club head body 10, and several screw holes 12 are provided in the groove of the groove 11. The face plate 20 is made of titanium or a titanium alloy, and a convex edge portion 20A is similarly formed on the back surface of the face plate 20 by CNC machining. Several penetrating coupling holes 21 are also provided in the peripheral edge of the convex edge portion 20A, and the convex edge portion 20A provided in the face plate 20 matches the concave groove 11 of the club head main body 10. The two are combined, threaded, and firmly joined by a titanium material fastener 30, and the recessed portion of the face plate 20 after being joined by the titanium material fastener 30 (embedded screw). Further, welding is performed and flattened, but the welding material at that time is the same titanium material as the face plate 20.

The club head main body 10 and the face plate 20 are joined to the fastener 30 by welding, but the cup-shaped face plate 20 made of titanium or a titanium alloy has only a concave groove 11 provided in the club head main body 10. The manufacturing process can be carried out simply and quickly.
At the same time, since the face plate 20 is made of titanium or a titanium alloy, the weight of the hitting spot is increased and the designer can allocate the weight distribution to the volume and the center of gravity of the club head body 10. If the volume of the club head body 10 is increased, the meat spot can be further expanded, and by adjusting the weight distribution of the center of gravity, the stability when hitting the ball is increased, making it easier for the user to use and the elasticity. , Improved vibration absorption and increased flight distance.

  Regarding the coupling structure and manufacturing method of the club head main body 10 and the face plate 20 of the present invention, the face plate 20 is manufactured from titanium or a titanium alloy, but in actual manufacturing, other materials can also be manufactured. For example, when the face plate is made of maraging steel or the like, and the face plate is made of another material, the fastener is also bonded using the same material.

  In the improvement of the coupling structure of the golf club head made of different metals of the present invention, the club head 10 and the face plate 20 can be applied to various types of iron shafts and wood shaft structures. In this case, the face plate's meat spot is enlarged, and the physical characteristics of this face plate are increased in resilience, resilience, sound reverberation, and the weight of the head is reduced and the head is moved backwards or downwards. The center of gravity can be moved smoothly in the direction, and when the ball is hit, it can be expected to be easier to hit due to the acceleration of gravity. Thus, the present invention provides a better tool for the user. is there.

  Furthermore, the structural advantage of the present invention is that the cup-shaped face plate is firmly joined and integrated in the concave groove of the club head body by using a fastener and welding together. It can be said that it leads to savings and various cost reductions such as time and labor costs.

  In addition, since the production of this combined structure is performed simply and quickly, the production rate is improved, the defective product rate is also reduced, and this leads to cost reduction.

  In addition, when using a face plate made of titanium or titanium alloy for this golf club head, the meat spot expands and when hitting the ball, the hitting point easily hits the meat spot, as well as the coefficient of restitution, elasticity, The best effect can be obtained when the ball is hit in all the reverberations of the sound.

  In the manufactured golf club head, the face plate 20 is made of titanium or a titanium alloy, so that the weight is reduced and the weight distribution of the center of gravity is adjusted to increase the stability when hitting the ball. It is easier for the user to use, and it will fly straight and increase the flight distance.

  According to the above figures and description, the improvement of the golf club head coupling structure of the present invention composed of different metals is constituted by the club head body 10, the face plate 20 made of titanium or titanium alloy, and the titanium fastener 30. Then, after the two are firmly combined, they are further welded, and the club head main body 10 and the face plate 20 are intimately integrated so as to provide a golf club head that is more effective and easy to use for the user. It is realized.

1 is an exploded perspective view of a golf club head coupling structure made of different metals according to the present invention. It is sectional drawing of the assembled state of the coupling structure of the golf club head which consists of a dissimilar metal of this invention. It is a front view of the golf club head which consists of a dissimilar metal of this invention. It is the front view which showed the Example of the other pattern of the golf club head which consists of a dissimilar metal of this invention.

Explanation of symbols

10, head main body 11, concave groove 12, screw hole 20, face plate 20A, convex edge portion 21, coupling hole 30, fastener

Claims (3)

The face plate is made of a lightweight alloy such as titanium, which is different from the club head body, and is cup-shaped with respect to the club head body. Then, they are fitted and combined, combined, threaded from the face plate surface, fastened with a screw connector made of the same material as the face plate, and the connection hole is welded and secured. A golf club head made of a dissimilar metal. An iron shaft is coupled to the golf club head,
2. The golf club head according to claim 1. A wood shaft is coupled to the golf club head,
2. The golf club head according to claim 1.

Images