JPH0445737Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement in the head of a wood club used in golf.

[Conventional technology]

Conventionally, in the above-mentioned wood clubs, the front ball-hitting surface of the head has been made of a single piece of hard carbon resin, etc., or made of a hard carbon resin or the like, or made of other resins with the resin as the main material, from the standpoint of improving resilience when hitting the ball. It is known that a face decorated with is integrally incorporated and fixed. The total weight of the head is
It varies depending on the club count (the higher the club count, the greater the total weight of the head), but this depends on the wooden part of the head, the lead material buried in the wood, the sole plate built into the underside of the wood, and the face. Furthermore, it is determined by the weight distribution of each member that makes up the head, such as the screws that tighten and secure the face and sole plate.More specifically, in a club with a large number, the volume of the wood, etc. with a small specific gravity, The total weight of the head is increased by reducing the weight of the head and increasing the volume of the lead material, which has a high specific gravity, the sole plate, etc.

[Problem that the invention attempts to solve]

However, according to the above-mentioned conventional wood club head, the face that makes an impact on the ball is made of a hard material, so the ball is easily damaged. The ball hitting surface, including the face, has an appropriately large loft (inclination angle), and the ball hitting surface is formed in a convex shape that slightly bulges outward, so There are problems such as difficulty in visually grasping the direction of the ball hitting surface.

In addition, as mentioned earlier, clubs with large numbers have a large volume of lead buried inside the head, so the wood of the head may crack due to impact when hitting the ball or changes in temperature, humidity, etc. ” and other problems may occur.

[Means for solving problems]

The present invention was devised for the purpose of eliminating the above-mentioned problems, and in order to achieve this purpose, a plate-like face body is made of a material that is softer than the face body and has a specific gravity. A main face insert and a sub-face insert molded from a large metal material are embedded, and the main face insert is exposed flush with a horizontally long strip at approximately the center in the vertical direction of the front surface of the face main body, and A secondary face insert is exposed flush with the upper part of the face main body in a line substantially parallel to the front surface, and the main face insert and the secondary face insert are each thinner than the main face main body, and the main face insert is thinner than the main face main body. To provide a wood club head characterized in that a face insert and the face main body, and the sub-face insert and the face main body are respectively laminated in the thickness direction of the face main body.

[Effect]

When using the wood club head of the present invention, the ball is hit by hitting the main face insert exposed at the front of the face body. However, the main face insert of the lever is made of a metal material that is softer than the face main body, so there is less risk of damaging the ball, and the impact applied to the head is reduced to provide a good hitting feel.

In addition, since there is a striped secondary face insert exposed on the top of the face body that is approximately parallel to the front surface of the face body (i.e., the ball hitting surface of the head), when addressing the ball, by looking down at this secondary face insert, you can see where the ball should be hit. It becomes possible to visually grasp the angular relationship between the direction and the ball hitting surface.

In addition, these main face inserts and sub-face inserts are made thinner than the face main body, and the main face insert and the face main body, and the sub-face insert and the face main body are laminated in the thickness direction of the face main body, respectively.
This lamination direction coincides with the direction in which an impact is applied when hitting a ball, so that the main face insert and the face main body, and the secondary face insert and the face main body are unlikely to separate from each other even if an impact is applied to each. This is because the impact acts in the direction of pressing the main face insert and the face body, and the sub-face insert and the face main body, respectively, and even if the impact is applied, the main face insert and the face main body, and the sub-face insert and the face main body This is because they do not tend to shift in the direction of their contact surfaces.

In addition, by adjusting the number and size of these main face inserts and sub-face inserts to increase their weight, the weight distribution of the lead material buried in the head wood can be reduced and the "cracking" of the wood can be reduced.
This can be prevented.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

In Figures 1 and 2, the wood club head, which is designated as a whole by reference numeral 1, is made of persimmon, a type of persimmon wood, etc., and has a wooden part 2 with a lead material (not shown) buried therein as a mass. , a sole plate 3 made of a metal material such as stainless steel and fixed integrally to the lower surface of the wooden part 2 with screws (not shown).
The basic structure consists of a face 6 which is integrally assembled and fixed to the ball hitting surface 4 at the front of the wooden part 2 with screws 5, 5, . . . . The ball-striking surface 4 is finished by integrally polishing the face 6 into a concave step cut out in the front part of the wood part 2 and fixing it therein, and has a large number of horizontal grooves 7, 7. ... is engraved on it. As shown in an enlarged view in FIG. 3, the face 6 is buried horizontally in the vertical center of the face main body 8 mainly made of hard carbon resin and its front surface 8a, and one side is exposed in the form of a band. , an elongated main face insert 9 made of brass (copper-zinc alloy) which is softer than the carbon resin and has a higher specific gravity, and a main face insert 9 on the upper part of the face body 8 parallel to its front surface 8a (abbreviated as the ball-striking surface 4). Two thin plate-shaped sub-face inserts 10 made of the same material (brass) as the main face insert 9 are embedded parallel to each other and their ends are exposed in a striped manner on the main body upper surface 8b (head 1 upper surface) side. , 10. Reference numeral 11 in FIG. 2 is a side sole fixed to the side of the wooden part 2 facing away from the face 6 in order to balance the weight, and is made of brass or the like.

In the above embodiment, the ball hitting surface 4 (face 6
The soft main face insert 9 on the front surface reduces damage to the ball when hitting the ball and softens the impact applied to the head 1, while the secondary face insert 10 has a brass end exposed on the top surface of the head 1. Since it shines brightly with a unique luster and appears to the player's eyes as two straight lines substantially parallel to the ball hitting surface 4, it has the effect of making it easier to visually grasp the orientation of the ball hitting surface 4 with respect to the hitting direction. In addition, the main face insert 9 and the secondary face insert 10 are made thinner than the face main body 8,
Since the main face insert 9 and the face main body 8 and the secondary face insert 10 and the face main body 8 are laminated in the thickness direction of the face main body 8, this lamination direction and the direction in which impact is applied when hitting a ball match, and the Main face insert 9, face main body 8 and secondary face insert 10
The face main body 8 and the face body 8 have the effect of being difficult to separate from each other even when an impact is applied to them.

Note that the direction, number, and size of the main face inserts 9 and the number and thickness of the secondary face inserts 10 are arbitrary, and the weight of the face 6 can be increased or decreased depending on the number and size of both face inserts 9 and 10. However, since the total weight of the head 1 can be adjusted, the weight distribution of the lead material buried in the wood part 2 can be adjusted as shown in Fig. 4, which shows an example of the weight distribution of each component in comparison with the conventional structure. The amount can be relatively reduced.

[Effect of idea]

As is clear from the above explanation, the wood club head according to the present invention can reduce damage to the ball and improve the hitting feel by using the face insert embedded in the face.
It becomes easier to determine the direction of the face (ball-hitting surface), and the weight of the face insert reduces the amount of lead buried inside the wood, making it easier to determine the direction of the face (ball-hitting surface). This has the effect of preventing "cracking" of the parts. In addition, the main face insert and the sub-face insert are made thinner than the face main body, and the main face insert and the face main body, and the sub-face insert and the face main body are laminated in the thickness direction of the face main body. The direction in which the impact is applied coincides with the direction in which the impact is applied, so that the main face insert and the face main body and the secondary face insert and the face main body are unlikely to separate from each other even if an impact is applied to each other.

[Brief explanation of drawings]

Fig. 1 is a front view of a wood club head showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a perspective view of the face according to the same embodiment, and Fig. 4 is a comparison of weight distribution. Figures and tables. 1...Wood club head, 2...Kibe, 3...
... Sole plate, 4... Ball hitting surface, 5... Screw,
6... Face, 7... Groove, 8... Face body, 9... Main face insert, 10... Sub-face insert, 11... Side sole.

Claims (1)

[Claims for Utility Model Registration] A main face insert 9 and a sub-face insert 10 formed from a metal material that is softer and has a higher specific gravity than the face main body 8 are embedded in one face main body 8 having a flat plate shape. The main face insert 9 is exposed flush with the front surface 8a of the face main body 8 in the shape of a horizontally long strip approximately at the center in the vertical direction, and the sub face insert 10 is exposed flush with the front surface 8a at the upper part of the face main body 8. The main face insert 9 and the sub face insert 10 are each thinner than the face main body 8, and the main face insert 9 and the face main body 8, and a wood club head, characterized in that the secondary face insert 10 and the face main body 8 are each laminated in the thickness direction of the face main body 8.