JP3048295U - Iron club - Google Patents

Abstract

(57) [Summary] [Object] To provide an iron club excellent in directionality and having reduced contact resistance with the ground. The sole portion of the head A is provided with at least four or more guide grooves perforated in the striking direction.
６０60%.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to an iron club used for golf.

[0002]

[Problems to be solved by conventional techniques and devices]

 Iron clubs are basically made of metal for the head, connected to the shaft via the neck provided at one end of the plate-shaped club head, and provided with a grip at the base end of the shaft for gripping. It is. Also, the shape of the club head is known to have a striking surface (face) with a bottom surface (sole portion) protruding behind the head, or the entire head to be massive, and the angle of the face (loft angle) is appropriately adjusted. It is stipulated.

[0003] Further, in an iron club, there is known an iron club in which a ridge is provided on a sole portion. Specifically, three U-shaped grooves are provided (Japanese Unexamined Patent Publication No. 59-174171), two thin ridges are provided (Japanese Utility Model Application Laid-Open No. 63-117566), and a wide projection is provided. The one provided (JP-A-5-192425) is known.

[0004] The above-mentioned sole portion provided with a concave groove, a ridge or the like improves the swing-through of the club by reducing the contact area of the sole portion with the ground at the time of hitting the ball, and further improves the club when hitting. The aim is to launch the ball in the correct direction without the head swinging left and right.

[0005] However, when the contact of the sole portion with the ground is reduced (the club having the U-shaped groove or the protrusion), the head is hit with the head slightly inclined from the correct hitting direction. There is no problem in the case of a sharp shot that takes a turf, but for beginners and intermediates, the sole slides on the grass because the shot is like sliding on the turf. There is no left / right correction. Especially in the case of an appointment shot where head speed is not required in the shot, the directionality of the hit ball is very important, but the unevenness of the sole portion is not very effective.

[0006] In the case where a thinner ridge is provided, since the ridge bites into the turf, a correct correction in the hitting direction is performed. However, the ridge biting into the turf naturally causes a shot resistance. Furthermore, since the lie angle is fixed, the ridge may not be useful at all depending on the habit of the approach shot of the user. In view of the above, the present invention proposes an iron club having a new uneven shape of the sole portion.

[0007]

[Means for Solving the Problems]

 In the iron club according to the present invention, at least four or more guide grooves formed in the sole portion of the head in the striking direction are uniformly formed on the entire sole portion and the groove area is 40 to 60% of the entire sole portion area. It is characterized by having.

[0008]

[Action]

 Since a large number of guide grooves are formed in the sole part, when the sole part moves in contact with the ground during a shot (slips, cuts off the turf, etc.), it strikes in the correct direction due to high side slip resistance. Since the area of contact with the ground is reduced, the club swings well and the balance between the two is maintained.

[0009]

【Example】

 Next, an embodiment of the present invention will be described. <First Embodiment> FIGS. 1 to 4 show a first embodiment of the present invention. This embodiment is an iron club exclusively used for an approach.

The iron club according to the first embodiment basically includes a head portion A, a shaft B, and a clip (not shown) provided at a base end of the shaft B, similarly to the conventional club. The present invention particularly relates to the head portion A. The head part A is a so-called wood club-like head body in which the whole body 1 is a lump, and is integrally formed of an aluminum alloy, and a weight member (steel material or the like) is screwed to an appropriate position in the body 1 as necessary. Or other embedding means to obtain the desired weight balance. A face portion 2 having a loft angle of 45 to 60 ° (optimal 52 °) suitable for approach shots is formed on the front surface of the head portion A, and a neck portion for connecting the shaft B to one side portion. 3 and a guide groove 5 in the sole portion 4.

The guide groove 5 is formed in the direction of impact of the club, and is formed substantially uniformly over the entire width of the sole portion 4. Specifically, when viewed from the front, the height (depth) is determined. This is a rectangular wave having a width of 5 mm and a width of 5 mm.

When the approach shot is performed with the club, the approach shot is not a shot that tears off the turf, but hits the ball while the sole portion 4 slides on the turf. Any deviation from the direction will cause the edge of the groove 5 to be caught on the ground (grass) and cause strong resistance. Therefore, the head A moves along the guide groove 5 at the position where it hits the ball. And can launch the ball in the correct direction. In addition, since the guide groove 5 does not often come into contact with the ground, the resistance at the time of a shot is naturally reduced.

[0013] Therefore, in the approaching club, conflicting performances of hitting directionality and reduction of hitting resistance are required, but the club can provide a well-balanced club.

Further, as shown in FIG. 4, the club head A may be a hollow body made of stainless steel or other metal instead of an aluminum alloy. In this case, there is an advantage that the guide groove 5 of the sole portion 4 can be easily formed by forging.

<Second Embodiment> FIGS. 4 and 5 show a second embodiment of the present invention. This embodiment is an example in which the present invention is applied to an ordinary iron club. a, a shaft b, and a clip (not shown) provided at a base end of the shaft b. The main body 1a of the head portion a has a face portion 2a having a predetermined loft angle, a neck portion 3a for connecting the shaft b, and a sole portion 4a as before, and a guide groove is provided on the sole portion 4a. The guide groove 5a is formed in the hitting direction of the club, and is formed substantially uniformly over the entire width of the sole portion 4a.

Therefore, similarly to the club of the first embodiment, at the time of a shot, the directional stability and the reduction of the contact resistance with the ground can be obtained by the guide groove 5a of the sole portion 4a.

The number of guide grooves of the present invention and the proportion occupied by the sole portion are not limited to those in the above-described embodiment, and at least four or more guide grooves are required in order to obtain a suitable lateral resistance. Considering the contact resistance with the ground, a range of about 40 to 60% of the sole portion is appropriate.

[0018]

[Effect of the invention]

 As described above, according to the present invention, in the iron club, at least four or more guide grooves formed in the sole portion of the head in the hitting direction are formed uniformly over the entire sole portion and with respect to the entire area of the sole portion. Is 40 to 60%, and the ball hitting direction performance at the time of a shot is improved, and the contact resistance with the ground is reduced, and both are balanced and an easy-to-use club can be provided.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a first embodiment of the present invention.

FIG. 2 is a side view of the same part cut.

FIG. 3 is a rear view of the same.

FIG. 4 is a partially cut-away side view of another example (hollow body head).

FIG. 5 is a front view of a main part of a second embodiment of the present invention.

FIG. 6 is a side view of the same part cut.

[Explanation of symbols]

 A, a head part B, b shaft 1, 1a body 2, 2a face part 3, 3a neck part 4, 4a sole part 5, 5a guide groove

Claims (6)

[Utility model registration claims] At least four guide grooves formed in the sole portion of the head in the hitting direction are uniformly formed on the entire sole portion and have a groove area of 40 to 40% with respect to the entire area of the sole portion.
An iron club characterized by being 60%. 2. The iron club according to claim 1, wherein the guide groove has a bottom surface which is parallel to the ground at the time of impact in the hitting direction, and has a rectangular wave shape in the groove transverse direction as viewed from the front. 3. The iron club according to claim 1, wherein the club head is made of an aluminum alloy, is formed into a mass like a club head of a wood club, and is a chipper club having a large loft angle. 4. An iron club according to claim 2, wherein the club head is made of an aluminum alloy, is formed into a mass like a club head of a wood club, and is a chipper club having a large loft angle. 5. The iron club according to claim 1, wherein the club head is a hollow body made of stainless steel or other metal, and is a chipper club having a large loft angle. 6. The iron club according to claim 2, wherein the club head is a hollow body made of stainless steel or other metal, and is a chipper club having a large loft angle.