JPH01501125A - Improving weight distribution on golf club heads - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a golf club head, and more particularly, to improvements related to the latter. I do it.

A golf club generally has a "shaft" that supports the head or striking member at the lower end. There is a handle called a "grip" and a handle on the top end that is usually called a "grip". This is essentially the case. The clubs generally include woods, irons and bats. It is classified into three categories:

In the game of golf, shot accuracy depends on certain parameters and especially on people. Depends on the interval parameters.

The movement before hitting is more or less precise and the head of the club at impact. The position of the ball is more or less normal relative to the ball. Now, play golf Players should be aware that the least inaccuracy when hitting the ball will have important results. I know that. In fact, at impact, the impact of the ball on the hitting face The point of this is the straight line that connects the center of gravity of the ball and the center of gravity of the club head. It must be fully positioned on top. At the time of impact, this condition is met. Otherwise, under the influence of impact, the club head will pivot and the striking face is either oven or closed, and the trajectory of the ball is exactly as you want it to be. No. If the hitting face is open, the ball will fly to the right, If the hitting face is closed, the ball will fly to the left. current club Bhead is less forgiving in this regard and does not hit the ball with great accuracy. Must be.

The present invention hopes to remedy this shortcoming and allows To provide a golf club that allows accuracy. This result shows that the total weight of the club head is Obtained by a new type foil distribution that does not change.

Thus, for traditional heads, golf clubs according to this invention The head has a heavier tip and hosel or a heavier neck. The central part between the loops or neck is lighter.

Due to this distribution, the heavy parts are distributed both horizontally and vertically. The center of gravity is also further away from the center of gravity in both directions, which makes it easier to use the same weight than an equivalent conventional head. imparts greater inertia to the club head than the inertia of The head according to this invention is It is more forgiving, has less effect on hitting errors, and has a more stable hitting face position. It's too late to become an O-zu.

The fact of placing the weight at the hosel level has certain technical advantages. actual , at this level, it is not limited by the volume, but by the counterweight. Excess weight does not require any dense material.

Other features and advantages of the invention may be found in the accompanying drawings, which are given by way of non-limiting example only. This will become clear from the subsequent description with reference to it.

1 and 2 show a conventional golf club head.

FIG. 1 is a front view.

FIG. 2 is a side view in the direction of arrow F in FIG. 1.

FIG. 3 shows the weight distribution curve of the head according to FIG.

4 and 5 are the same views as FIGS. 1 and 2 showing a club head according to the present invention. It is from the wild.

FIG. 6 is a curve showing the 111 distribution of the head shown in FIG.

Figures 7a and 7b are views similar to Figures 4 and 5 showing the deformation. .

Figures 8a and 8b show other variants, with Figure 8a being a front view, whereas Figures 8a and 8b show another variant; Figure 8b is a plan view.

Figures 9a, 9b and 9c show variations.

FIG. 10 shows another modification.

11, 12 and 13 show other types of club heads according to the invention. A view similar to that shown in FIGS. 4, 5 and 6 is shown.

Figure 1.2 shows a type of tradition called “wood” according to the prior art. The latter shows a neutral head, the striking part being extended by a hosel or neck 2 Consists of 1. The striking part 1 is divided into three parts: a tip 3, a central part 4 and a heel 5. The central portion 4 is located between the tip 3 and the heel 5, and the head is approximately , as shown in FIG. 1.2, has a center of gravity G located at the central portion 4.

FIG. 3 shows the weight distribution curve 7 of the traditional head according to FIG. Here, the position "e" of the basic weight is plotted along the y-axis opposite to Figure 1. , the latter value "m" is plotted along the y-axis. traditional head On the other hand, the Jitfi amount corresponds to the central part 4, and the end region corresponds to , that is, the further the tip 3 moves towards the hosel or the neck 2, the more On the other hand, it is understood that the weight of the hosel is extremely low. be done. Thus, the curve 7 representing the base weight enclosure has the shape of a peak. , the maximum weight is at the center.

Thus, for example, the entire head of a #1 wood, known as the “driver,” Model 11M weighs approximately 200 grams and includes hosel 2, tip 3, center section 4 and If we assume that the weights of Heel 5 are M2, MS, M4, and MS, essentially , with the following distribution: M2-3 grams, MS-47 grams, M4=120 grams. Lamb, M5 = 30 grams. Of course, the weight M2, MS, M4, M5 The value will vary depending on the part made, but curve 7 will have the shape shown in Figure 3. .

4 and 5 illustrate a club head according to the present invention. As an example, this example is a head called "wood" having a weight of M. For a traditional head The latter consists of a striking part 1 and a hosel or neck 2 of the heavy IM 2, as shown in FIG. Ru. The striking part 1 consists of a heavy fit M3 tip 3, a center part 4 of a 141M 4 The heel 5 is composed of three parts with a weight of σM5.

FIG. 6 shows an iam distribution curve 8 according to the invention.

In this curve 8, the basic weight position N″e” is placed on the y-axis opposite to FIG. The latter value "m" is plotted along the y-axis. Song 1i8 is , surrounding the base weight "m", all of the base weights "m" being substantially equal; It is therefore understood that curve 8 is substantially flat. Tradition In the head according to the present invention regarding the null head, hosel 2 and tip 3 is made heavier, while the central striking part 4 and/or the heel 5 has been made lighter.

Thus, a head according to the invention, for example a No. 1 wood of approximately 200 grams, may be The distribution of parts C1, C1, C3 as is approximately MS-34 grams, M 4-64 grams, MS-40 grams, M2-38 grams.

This result is obtained by different means. In fact, for example, some types of wood, aluminum The head is made of relatively light materials such as aluminum, plastic materials or composite materials. The entire board can be made of lead, steel, tungsten or Counterweights 3o made of high-density materials such as other materials are shown in Figures 4 and 5. It can be added as follows. Counterweight 20 is at the level of hosel 2 The counterweight 30 is located at the lower end of the chip 3. same result In order to obtain (see Figures 7a and 7b), convenve Although traditional materials can be used, increase the size of hosel 21 and heel 31. , give sufficient fI equipment M2 and MS to these, and let the weight of the center part 4 and heel 5 be For example, the hole 40.50 makes it lighter. Moreover, according to FIGS. 8a and 8b, the concave The portions 41, 51 allow the size of the central part 4 and the heel 5 to be reduced.

Hosel or neck counterweight 21°20 size increase is standard According to figures 9a, 9b and 9a, where the neck of the Two.

The increased weight 200 in FIG. 9a is downwardly conical and the increased weight 200 in FIG. The weight 201 is cylindrical and then conical, as shown in FIG. 9C. The increased weight 202 is cylindrical and extends beyond the end 2' of the hosel 2. It is growing rapidly.

In addition, as shown in FIG. 10, internal weights can be provided, and tungsten Alternatively, a lead counterweight 203 can be inserted inside the shaft 9. Ru.

This counterweight is, for example, 15 to 100 grams for a head weighing 200 grams. It can weigh 40 grams.

1 to 9 show the head of a wood, but the head of the golf club of the present invention is The head may be a head for an iron as schematically shown in FIGS. 11 and 12.

As mentioned above, the head extends upward and serves as a connection part between the striking part 1 and the shaft 9. It consists of a hosel 2 that acts as a Parts that are the same as those already mentioned have the same symbols. Motsu. Thus, chip 3 of heavy IM3, central part 4 of heavy [1M4 as well as ff11 You can find Heal 5 of M5.

According to this invention, the gravity zero distribution is as shown in FIG. is achieved by two counterweights 30.20, while the central part 54 and The heel 5 pattern seedlings are the same as all ffiWM traditional heads. reduced.

Advantageously, the counterweight or excess weight 30, 31 covers the entire head. The center of gravity of the GS is essentially at the same point as the equal traditional head. It is located at the lower end of the chip 3 in order to Thus, for a given heavy IM , the head according to the invention has very good stability around the axes YY'' and xx''. have

Of course, the invention is not limited to the embodiments described and illustrated by way of example. It also includes all technical equivalents and combinations thereof. Ru.

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Claims (14)

[Claims] 1. Consisting of a striking part (1) with a weight of M1 and a hosel or neck (2) with a weight of M2. The striking part (1) has a tip (3) with a weight of M3, a center part (4) with a weight of M4, and a tip with a weight of M3. and a heel (5) of mass M5, the weight distribution being substantially flat. characterized by having the type illustrated by curve (8) in FIG. A golf club head with a total weight of M. 2. The hosel (2) and tip (3) are made heavier, and the central part (4) and Claim 1 characterized in that/or the heel (5) is made lighter. Head for golf clubs by. 3. Hosel (2) carries extra weight or counterweight (20,200 , 201, 202, 203, 21). A golf club head made by one. 4. Extra weight or counterweight (20, 200, 201, 202 , 203, 21) weighs at least 15 grams. Golf club head according to Range 3. 5. Extra weight or counterweight (20, 200, 201, 202 , 203, 21) are located around the hosel (2). A head for a golf club according to one of claims 3 or 4. 6. An extra weight or counterweight is located at the top of the hosel (2). 5. A golf club head according to claim 4, characterized in that: 7. Tip (3) is an extra weight or counterweight (30, 31) A head for a golf club according to one of the preceding claims, characterized in that it comprises: 8. Extra weights or counterweights (30, 31) are placed at the lower end of the tip. 8. A golf club head according to claim 7, characterized in that the head is located at. 9. The extra weight or counterweight (30, 31) may be a protrusion. A golf club head according to claim 7 or 8, characterized in that: 10. The weight of the center part (4) and/or heel (5) is reduced. A head for a golf club according to one of the preceding claims. 11. The relative reduction in weight of the central part (4) and heel (5) is due to the recessed hole (40,5 0) for a golf club according to claim 10, characterized in that: head. 12. The relative reduction in weight of the central part (4) and heel (5) is due to the special shape of these parts. The goal according to claim 11, characterized in that it is made according to the configuration (41, 51) Ruff club head. 13. The head is that of a type of club commonly referred to as a “wood.” A golf club head according to any one of the preceding claims, characterized in that: 14. The head is of a type of club commonly referred to as an "iron" A golf club head according to any one of the preceding claims.