JPH0655667U - Golf club head - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a golf club head which improves the directionality of a hit ball by reducing the swing of the head at the moment of impact even if the sweet spot is removed. The purpose is to provide. According to a first aspect of the invention, in a golf club head in which a resin face plate is attached to a face portion of a head body made of metal, a back portion of the head body extends rearward of the head body. The collar portion is provided along the peripheral edge portion thereof, and the collar portion is projected to the rear of the head main body longer than the thickness thereof. And claim 2
The golf club head according to the present invention is characterized in that the collar portion is provided corresponding to the peripheral portion of the face plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in a golf club head that improves the directionality of a hit ball.

[0002]

[Prior art]

 In general, the head of an iron golf club has a hosel portion, a sole portion, a face portion, and the like integrally formed of a metal such as soft iron or stainless steel.

However, conventionally, although this type of golf club head has a shape and weight adapted to each count, it is poor in elasticity because it is a lump of metal, and especially the face portion which is most important for impact of the ball. If there is no elasticity, the coefficient of restitution is small, and it is impossible to obtain a soft shot feeling like a wood club.

Therefore, recently, as disclosed in Japanese Utility Model Laid-Open No. 59-82063, in order to increase the flight distance of a hit ball and to obtain a soft feel at the same time, a metallic head body has a face portion. A golf club head equipped with a resin face plate has been proposed.

FIGS. 3 and 4 show a golf club head disclosed in Japanese Utility Model Laid-Open No. 59-82063, in which the golf club head 1 includes a face portion 5 of a metallic head body 3 and a top portion 7 of the head body 3. The plate-shaped notch 11 reaching the sole portion 9 is formed, and the plate-shaped notch 11 is fitted with a face plate 13 made of a fiber-reinforced resin in which a reinforcing fiber and a synthetic resin material are mixed. The elastic deformation of the plate 13 extends the flight distance of the hit ball, and at the same time, a soft feel at impact can be obtained at the moment of impact.

Further, the back portion 15 of the head main body 3 is formed with a concave cavity (recessed portion) 17 excluding the peripheral edge portion 15a thereof, which is generally called a cavity back. By providing the cavity 17 in the base plate 13, the face plate 13 is elastically deformed and the flight distance of the hit ball is secured.

[0007]

[Problems to be solved by the device]

 However, in conventional golf club heads of this type, when the sweet spot is removed, the head swings at the moment of impact of the ball, and when it goes off the sweet spot, the elastic deformation of the face plate is biased, and the ball is hit. There was a risk that the direction of the project would deteriorate.

The present invention has been devised in view of such circumstances, and even if the sweet spot is removed, the swing of the head at the moment of impact is reduced to improve the directionality of the hit ball. The purpose is to provide.

[0009]

[Means for Solving the Problems]

 In order to achieve such an object, a device according to claim 1 is a golf club head in which a resin face plate is attached to a face portion of a metal head body, and a back portion of the head body is provided. A flange portion extending rearward of the head body is provided along the peripheral edge portion thereof, and the flange portion is protruded rearward of the head body longer than its wall thickness.

A golf club head according to a second aspect is characterized in that the flange portion is provided in correspondence with the peripheral edge portion of the face plate.

[0011]

[Action]

 When a golf club equipped with the golf club head according to each claim is swung, the head has a larger moment of inertia than before, so even if the sweet spot is removed, the shake of the head at the moment of impact is reduced. The ball will fly away.

According to the golf club head of the second aspect, the entire face plate is elastically deformed more easily than the conventional one, and the sweet spot is widened to reduce the uneven elastic deformation of the face plate. The repulsive force of the entire plate will cause the ball to fly farther than in the past with good directionality.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a golf club head according to an embodiment of the present invention, and FIG. 2 is a sectional view thereof, in which 19 is a metal head body formed of soft iron or stainless steel, The hosel portion 21, the sole portion 23, the face portion 25 and the like are integrally formed on the head body 19 as in the conventional case. A concave fitting portion 27 is formed on the face portion 25 except the peripheral portion 25a, and a face plate 29 is fitted and attached to the fitting portion 27.

The face plate 29 is formed of a highly elastic fiber reinforced resin in which carbon fibers or glass fibers are mixed with a resin material, and the outer shape of the face plate 29 is the same as that of the fitting portion 27. It is formed to have a wall thickness that is flush with the face portion 25 when the fitting portion 27 is fitted and attached.

Further, as shown in FIG. 2, the back portion 31 of the head body 19 is provided with a cavity (recessed portion) 33 for elastically deforming the face plate 29 as in the conventional case. In the present embodiment, the collar portion 35 extending rearward of the head body 19 is provided along the peripheral portion of the back portion 31 so as to correspond to the peripheral portion of the face plate 29, so that the face plate 29 as shown in FIG. The back portion 31 is provided with a concave cavity 33 that substantially matches the outer shape of the above.

As shown in FIG. 2, the collar portion 35 has a shape protruding to the rear of the head body 19 longer than its wall thickness, and thus extends along the peripheral edge of the back portion 31. By providing the collar portion 35 that extends to the rear of the head main body 19, the moment of inertia of the golf club head during the swing is increased as compared with the conventional one, and at the same time, the overall balance of the head main body 19 is improved. There is.

Since the golf club head according to the present embodiment is configured in this way, when a golf club equipped with such a golf club head is swung, the golf club head of the present embodiment has a larger moment of inertia than before. Therefore, even if you hit the ball out of the sweet spot, the deflection of the head at the moment of impact is reduced, and the ball will fly in the target direction.

However, as described above, since the cavity 33 is provided in the back portion 31 of the head body 19 so as to substantially match the outer shape of the face plate 29, the conventional example shown in FIGS. In comparison, the entire face plate 29 is elastically deformed easily, the sweet spot is widened, and the uneven elastic deformation of the face plate 29 is reduced. Therefore, the repulsive force of the entire face plate 29 makes the ball more directional than before. Will be well skipped.

As described above, according to the present embodiment, the back portion 31 of the head body 19 is provided with the flange portion 35 extending rearward of the head body 19 longer than before, along the peripheral edge portion thereof, so that the collar portion 35 at the time of swinging can be reduced. Since the moment of inertia of the head was increased, the head became stable at the moment of impact, and the directionality of the hit ball became better than before.

In this embodiment, however, the flange portion 35 is provided on the back portion 31 so that the cavity 33 substantially matches the outer shape of the face plate 29, so that the face plate 29 is elastically deformed. Since the sweet spot is widened and uneven elastic deformation of the face plate 29 is reduced, the directivity of the hit ball and the flight distance of the hit ball are improved.

[0021]

[Effect of device]

 As described above, according to the invention described in each claim, the moment of inertia of the head during swing is larger than that of the conventional one, so that the head is stable at the moment of impact and the directionality of the hit ball is improved. It was

According to the second aspect of the invention, in addition to the above effects, there is an advantage that the flight distance of a hit ball is improved.

[Brief description of drawings]

FIG. 1 is a front view of a golf club head according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a front view of a conventional golf club head.

4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 19 Head Main Body 25 Face Part 27 Fitting Part 29 Face Plate 31 Back Part 33 Cavity 35 Collar Part

Claims (2)

[Scope of utility model registration request] 1. A golf club head comprising a metal head body and a resin face plate attached to the face portion of the head body. A back portion of the head body has a flange portion extending rearward of the head body. Along with
A golf club head, characterized in that the collar portion is projected to the rear of the head body longer than its wall thickness. 2. The golf club head according to claim 1, wherein the collar portion is provided corresponding to a peripheral portion of the face plate.