JP2540778Y2 - Wood golf club head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] This invention relates to a wood golf club head mainly composed of a synthetic resin such as fiber reinforced plastic, and more specifically, a sole plate is firmly fixed to a head body. The present invention relates to an improvement in a wood golf club head in which the life of the club head is extended and weight portions are disposed on the toe side and the back side of the head main body so that a sweet area is enlarged and weight adjustment is facilitated.

[Conventional technology]

Conventionally, as shown in FIG. 10, a sole portion of a wood golf club head mainly made of a synthetic resin such as fiber reinforced plastic is provided with a sole plate 2 previously formed into a predetermined shape after the head body 1 is formed. It is fixed to the head main body 1 with a wood screw 3 or the like.

Furthermore, in order to adjust the weight of the club head and to enhance the toe and heel balance effect of the head body, a sole plate with a weight member attached to the inner surface or a sole and hosel are integrally formed by a metal frame. The present applicant has also proposed a club head in which the weight ratio of the toe portion, the center portion, and the heel portion is changed (Japanese Utility Model Application Laid-Open Nos. 63-109168 and 64-42071).

[Problems to be solved by the invention]

However, in the case of the conventional structure as described above, the fixing force between the sole plate and the head body 1 is weak,
When the club head is used, there is a problem that the sole plate 2 is separated from the head main body 1 and floats up. Further, since the sole plate 2 is a thin plate having a thickness of 2.0 to 3.5 mm, there is a risk that the sole plate 2 may be deformed by repeated hitting.

Further, if the sole plate and the head main body are not firmly fixed, there is also a problem that loss is likely to occur even in effectively transmitting the kinetic energy of the club head at the time of hitting the ball to the ball.

Furthermore, in the case of adjusting the weight by adjusting the weight member or the thickness, it is difficult to arrange an appropriate amount because the shape, size and weight are determined in advance by the conventional method, and therefore, it is difficult to arrange the sweet area. There is a problem that it is difficult to enlarge and adjust the position of the center of gravity.

[Purpose of the invention]

The present invention has been devised in view of such a conventional problem. The sole plate can be firmly fixed to the head main body in the entire frame, and the failure of the sole plate is reduced to extend the life of the club head. It is another object of the present invention to provide a wood golf club head capable of expanding the sweet area of the club head and adjusting the position of the center of gravity.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a wood golf club head in which a metal sole plate is attached to the bottom surface of a synthetic resin head body, a beam extending from the toe in the heel direction and a beam extending from the intermediate portion to the back side. A substantially T-shaped beam member is formed from the beam, and a weight portion is integrally formed at each of the toe side end and the back side end of the beam member,
A frame having a configuration in which a hosel portion is integrally formed at a heel side end is integrally formed on an inner surface of the sole plate, and a separate weight body is attached to each of the weight portions. .

The frame is made of a lightweight metal material made of aluminum, titanium, magnesium or an alloy thereof, and the weight body is made of a high specific gravity metal such as brass or lead or a high specific gravity metal such as tungsten, lead or zinc. It is made of synthetic resin.

[Operation of the invention] The invention is configured as described above, and the sole plate is integrally fixed to the head body via the frame, so that the sole plate and the head body can be firmly fixed. As a result, The failure and damage of the sole plate can be reduced, and the life of the club head can be extended,
Also, by arranging the weight parts on the toe side and the back side of the head body of the frame, the sweet area of the club head can be easily expanded and adjusted, and the sole plate is firmly integrated with the head body. Because it is fixed, there is little energy loss at the time of hitting the ball and a long flight distance can be expected, and by arranging an appropriate amount of weight on the weight part, the sweet area of the club head can be expanded and the center of gravity adjusted. Can be performed significantly.

[Example of the invention]

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 is a front view of a wood golf club head mainly made of a synthetic resin such as fiber reinforced plastic or the like embodying the present invention, FIG. 2 is a longitudinal sectional front view of a club head body 1, and FIG. FIG. 1 is a cross-sectional view taken along the line III-III of FIG. 1, and the sole portion 4 is integrally fixed when the head body 1 is formed.

As shown in FIGS. 4 to 6, the sole plate 2 constituting the sole portion 4 is a substantially T-shaped beam in which a hosel portion 5 is integrally formed on an inner surface 2a of the sole plate 2. Weight members 7a and 7b are integrally fixed to the member 6 and the toe side 1a and the back side 1b of the head body 1 of the beam member 6.

The beam member 6 is formed in a substantially T-shape from a beam extending from the toe in the heel direction and a beam extending from the intermediate portion to the back side. Since the beam member 6 complements the strength of the sole plate, the sole plate can be made thinner and lighter, and can be easily handled lighter while retaining the characteristics of a wood golf club having a large head volume.

The weight portions 7a and 7b are provided in the concave portions 1 in which the weight body 9 is fitted and mounted.
0 is formed, and the weight of the weight parts 7a and 7b can be easily adjusted by adjusting the amount of the weight body 9.

As a method for mounting the weight body 9, as shown in the above embodiment and FIG. 7, a concave portion 10 is formed in the weight portions 7 a and 7 b, and other than the method of fitting and mounting. 8, a method in which shallow grooves 11 are formed in the weight parts 7a and 7b, and the weight body 9 is attached thereto through an adhesive or the like,
Alternatively, as shown in FIG. 9, the protruding portions 12 are attached to the weight portions 7a and 7b.
A method of mounting the weight body 9 having the concave portion 13 to be engaged with the projection 12 by using an adhesive or fitting is considered.

The frame 8 is made of a lightweight metal material such as aluminum, titanium, magnesium or an alloy thereof, and the weight 9 is made of a high specific gravity metal such as brass or lead or a high specific gravity metal such as tungsten, lead or zinc. The synthetic resin containing is used.

The sole plate 2, the hosel part 5, the beam member 6 and the weight parts 7a, 7b may be integrally formed by casting, or the sole plate 2, the hosel part 5, the beam member 6, and the weight part 7a , 7b may be separately formed and integrally formed by welding or the like.

Further, weight parts 7a and 7b integrally formed on the toe side 1a and the back side 1b of the head main body 1 of the beam member 6 are fixed to the head main body 1 as shown in FIG. An overhang portion protruding outward from the outer shape of the plate 2
Has 14

As described above, the sole plate 2, the hosel part 5,
A frame 8 in which the beam member 6 and the weight portions 7a and 7b are integrated is previously formed integrally, and the sole plate 2
Is formed integrally with the frame 8 fixed on the inner surface of the head body 1 so as to cover a synthetic resin material made of fiber-reinforced plastic or the like constituting the outer shell 15 of the head body 1 and by heating and curing. Things.

Further, when the outer shell 15 and the weight parts 7a, 7b of the frame 8 are fixed, the overhanging parts 14 of the weight parts 7a, 7b are hooked and fixed to the outer shell 15, so that they can be further firmly fixed.

When the core 16 is incorporated in the head main body 1, the fixing of the core 16 to the frame 8 can be performed easily and firmly by fitting, and at this time, an adhesive is used together. It is possible to further firmly fix.

As described above, in the present invention, since the sole plate 2 is integrally fixed to the head main body 1 via the frame 8, the sole plate 2 and the head main body 1 can be firmly fixed. Thus, the failure and damage of the sole plate 2 formed at the same time can be reduced, and the life of the club head can be extended.

Further, by disposing predetermined weight portions 7a and 7b on the toe side 1a and the back side 1b of the head body 1 of the frame 8, the sweet area of the club head can be easily expanded and adjusted, and the weight can be easily adjusted. By appropriately increasing and decreasing the weight in the portions 7a and 7b and arranging them in an appropriate amount, the sweet area of the club head can be enlarged and the position of the center of gravity can be largely adjusted. Further, the sole plate 2 is the head body 1
Since it is firmly and integrally fixed to the ball, energy loss at the time of hitting the ball is small and a long flight distance can be expected.

Further, when the frame 8 is integrally formed by casting of lost wax or the like, distortion and deformation of the sole plate 2 at the time of casting can be suppressed minutely by the arrangement of the beam member 6 and the weight portions 7a and 7b. It can be manufactured with high accuracy.

[Effect of the invention]

The present invention forms a substantially T-shaped beam member from the beam extending in the heel direction from the toe and the beam extending from the intermediate portion to the back side as described above, and the toe-side end and the back-side end of the beam member are formed. A frame having a structure in which a weight portion is integrally formed on each of the portions and a hosel portion is integrally formed on a heel side end is integrally formed on an inner surface of the sole plate, and a separate weight body is formed on each of the weight portions. , The following excellent effects can be obtained.

(A). The sole plate is fixedly attached to the head body via the frame, so that the sole plate and the head body can be firmly fixed, resulting in reduced failure and damage of the thin sole plate. Therefore, the life of the club head can be extended. In addition, since the frame is formed from a substantially T-shaped beam member, it can be firmly attached while keeping the sole plate as thin as possible. The club can be made lightweight and easy to handle without making the club heavy.

(B). By arranging an appropriate amount of a predetermined weight on the toe side and the back side of the head body of the frame, the sweet area of the club head can be enlarged and the position of the center of gravity can be largely adjusted. It is.

(C). Since the sole plate is firmly and integrally fixed to the head body, energy loss at the time of hitting the ball is small, and a long flight distance can be expected.

[Brief description of the drawings]

FIG. 1 is a front view of a wood golf club head mainly made of a synthetic resin such as fiber reinforced plastic, which implements the present invention. FIG. 2 is a vertical front view of a club head body.
3 is a sectional view taken along the line III-III of FIG. 1, FIG. 4 is a plan view of the frame, FIG. 5 is a sectional view taken along the line VV of FIG.
FIG. 4 is a front view of FIG. 4, FIG. 7 to FIG. 9 are cross-sectional views showing another embodiment in which a weight is attached to a weight portion, and FIG. 10 is a longitudinal front view of a conventional wood golf club head. is there. DESCRIPTION OF SYMBOLS 1 ... Head main body, 1a ... Toe side of head main body, 1b ... Back side, 2 ... Sole plate, 2a ... Inner surface of sole plate, 5 ... Hosel part, 6 ... Beam member, 7a, 7b ... Weight part, 8
... frame, 9 ... weight body, 10 ... recess.

Claims (3)

(57) [Scope of request for utility model registration] In a wood golf club head having a metal sole plate attached to the bottom surface of a synthetic resin head body, a substantially T-shaped beam is formed from a beam extending in a heel direction from a toe and a beam extending from an intermediate portion thereof to a back side. A frame having a configuration in which a weight-shaped beam member is formed, a weight portion is integrally formed at a toe side end and a back side end of the beam member, and a hosel portion is integrally formed at a heel side end, A wood golf club head integrally formed on an inner surface of a plate and having a separate weight attached to each of the weight parts. 2. The frame is made of aluminum, titanium,
2. The wood golf club head according to claim 1, wherein the head is made of a lightweight metal material such as magnesium or an alloy thereof. 3. The wood golf club head according to claim 1, wherein said weight body is made of a synthetic resin containing a high specific gravity metal such as brass or lead or a high specific gravity metal such as tungsten, lead or zinc.