JPH065654U - Iron golf club head - Google Patents

Abstract

(57) [Abstract] [Purpose] An embedded object made of a synthetic resin material that is embedded in a recess formed in a metal head main body can be firmly held in the recess, and the embedded object may peel off due to an impact at the time of hitting a ball, or the like. It is an object of the present invention to provide an iron golf club head which can effectively prevent the golf club head from falling off and improve the durability of the golf club head. [Configuration] 1 is a metal head body, 2 is a head body 1
The concave portion formed on the face 1a side of
An embedded object 3 made of a synthetic resin material such as fiber reinforced plastic is embedded by compression molding or injection molding and is integrally molded therein. On the bottom wall surface 2a of the concave portion 2 formed in the head body 1, a plurality of locking members 5 each having a substantially T-shaped cross section are provided so as to protrude toward the face 1a side. Locking member 5 consisting of a protrusion having a substantially T-shaped cross section
However, the anchoring effect of the embedded object 3 is exerted, and the embedded object 3 is firmly fixed to the head body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an iron golf club head, and more particularly to an iron golf club head in which an embedded object made of a synthetic resin material is embedded in a recess formed in a metal head body. The present invention relates to an iron golf club head capable of effectively preventing peeling and dropping of the iron.

[0002]

[Prior art]

 Conventionally, in the iron golf club head, if the basic structural material of the club head and the face is metal, it is not possible to fit or attach another material to the face portion of the club head according to the rules of the golf club. It was not authorized as an official club. However, with the revision of the rules in 1992, it was allowed to insert or attach resin material to the face side of the metal head body, and this kind of iron golf club head has been attracting attention.

By the way, as a conventional iron golf club head as described above, for example, as shown in FIGS. 14 and 15, a concave portion 2 is formed on the face side of a metallic head body 1, and the concave portion 2 is combined with the concave portion 2. The embedded portion 3 made of a resin material is embedded by compression molding or injection molding to form the face portion 1a.

[0004]

[Problems to be solved by the device]

 However, in the case of the conventional iron golf club head as described above, the embedded object 3 embedded in the recess 2 is made of a synthetic resin material, and the embedded object 3 is held by the frictional force due to the contact area with the inner wall surface of the recess 2. Due to the structure, the embedded object 3 embedded by the repeated impact force peels off from the inner wall surface of the recessed portion 2. This phenomenon is particularly severe at the peripheral edge of the recessed portion 2, and in extreme cases, from the recessed portion 2. There was a problem such as the embedded object 3 falling off, and there was a problem with durability as an iron golf club head.

Further, in order to solve such a problem, an embedded object 3 made of a synthetic resin material embedded in the recess 2 is physically fixed from the back side of the metallic head body 1 with a screw or the like. Although the buried object 3 could not be firmly fixed and held, and it took a lot of labor and time for processing, the appearance could not be said to be good. The present invention was devised by focusing on such a conventional problem, and an embedded object made of a synthetic resin material to be embedded in a concave portion formed in a metal head main body can be firmly held in the concave portion. It is an object of the present invention to provide an iron golf club head capable of effectively preventing the embedded object from peeling off or falling off due to impact of the golf club head and improving the durability of the golf club head.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the gist of the present invention is to provide at least one locking member for locking an embedded object on the inner wall surface of a recess formed in a metal head body.

[0007]

[Function of the device]

 This invention is configured as described above, and when an embedded object made of a synthetic resin material is compression-molded or injection-molded in the recess formed in the head body, the embedded object is locked on the inner wall surface of the recess. It is effective that the embedded material is firmly fixed to the head body by the anchoring effect of the embedded material and the locking member, and the embedded material is peeled or dropped due to the impact at the time of hitting the ball. To improve the durability of the iron golf club head.

[0008]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a front view of an iron golf club head embodying the present invention, FIG. 2 is a sectional view taken along the line A--A of FIG. 1, where 1 is a metal head body and 2 is a face of the head body 1. A concave portion formed on the side of 1a is shown. In the concave portion 2, an embedded object 3 made of a synthetic resin material such as fiber reinforced plastic is embedded by compression molding or injection molding and integrally molded.

On the bottom wall surface 2a of the recess 2 formed in the head body 1, a plurality of locking members 5 each having a protrusion having a substantially T-shaped cross section are provided so as to protrude toward the face 1a. The locking member 5 composed of the protrusion having a substantially T-shaped cross section exerts the anchoring effect of the embedded object 3 and firmly fixes the embedded object 3 to the head body 1. As a method of integrally molding the head body 1 and the locking member 5, for example, as shown in FIGS. 3 and 4, a plurality of holes for fitting the locking member 5 into the bottom wall surface 2a of the recess 2 are formed. The head body 1 provided with 6 is manufactured by the lost wax method, and the locking member 5 also has a head portion 7a like a rivet and a shaft portion 7b in a column shape as shown in FIGS. 6 and 7. Is produced by the lost wax method. The shaft portion 7b of the locking member 5 is fitted into a plurality of holes 6 formed in the bottom wall surface 2a of the recess 2 to be integrally formed, and the head body 1 having the shape shown in FIG. Is formed.

The recessed portion 2 of the head body 1 thus formed is filled with an embedded object 3 made of a synthetic resin material such as fiber reinforced plastic by compression molding or injection molding, and the embedded object 3 is cured in this state. As a result, the embedded object 3 is wrapped around the locking member 5, and the anchoring effect allows the embedded object 3 to be firmly fixed to the head body 1, and the embedded object 3 may be peeled off or fallen off due to an impact at the time of hitting a ball. It is possible to effectively prevent it.

Next, FIGS. 8 to 10 show a second embodiment of the present invention. In this embodiment, the locking member 5a is vertically arranged in two rows on the bottom wall surface 2a of the recess 2 of the head body 1. As shown in FIG. As shown in FIGS. 9 and 10, the locking member 5a is formed on the bottom wall surface 2a toward the face 1a side. -Shaped collar portion 9 is integrally provided, and the embedded member 3 is filled around the support member 8 and the flange-shaped collar portion 9 by compression molding or injection molding, and is wound and cured. The embedded object 3 can be firmly fixed to the head body 1 by the anchoring effect of a.

Further, the head body 1 and the locking member 5a are manufactured by the lost wax method as in the first embodiment. Since the other structures are the same as those of the first embodiment, the same reference numerals are given and the description thereof is omitted. 11 shows another embodiment of the locking member 5b. The locking member 5b of this embodiment has the shape of the locking member 5a of the second embodiment shown in FIG. It is formed in a wedge shape that widens from the wall surface 2a toward the face 1a side, whereby the embedded object 3 is wound around the locking member 5b and cured to obtain the same effect. It is a thing. .

The cross-sectional shape of the locking member 5 is not limited to the above-described shape, and for example, the tip has a hook shape, or the shape in which the second embodiment and the third embodiment are combined. Various shapes are conceivable, and there is no particular limitation as long as the anchoring effect can be obtained for the buried object 3. 12 and 13 show a fourth embodiment of the present invention, in which the locking member 5c is formed on the bottom wall surface 2a of the recess 2 of the head body 1 and in two rows in the lateral direction of the head body 1. This locking member 5c is such that a flange-shaped collar portion 9a is integrally provided at the tip of a plate-shaped support member 8a projecting from the bottom wall surface 2a toward the face 1a side. The embedded object 3 is filled around the member 8a and the flange-shaped collar portion 9a by compression molding or injection molding, and is wound and cured, so that the embedded object 3 is anchored to the head body 1 by the anchoring effect of the locking member 5c. It can be firmly fixed. The head body 1 and the locking member 5a are manufactured by the lost wax method as in the first embodiment.

[0014]

[Effect of device]

 In this invention, at least one locking member for locking the embedded object is provided on the inner wall surface of the recess formed in the metal head body as described above. The filling material is hardened as if it is wrapped around the formed locking member, and the anchoring effect of the embedded material and the locking member allows the embedded material to be firmly fixed to the head body, and the impacted material at the time of hitting etc. There is an effect that it is possible to improve the durability of the iron golf club head by effectively preventing peeling and falling off.

[Brief description of drawings]

FIG. 1 is a front view of an iron golf club head embodying the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a front view of a head body.

FIG. 4 is a sectional view of a head body.

5 is a sectional view taken along the line BB of FIG.

FIG. 6 is a plan view of a locking member.

FIG. 7 is a front view of a locking member.

FIG. 8 is a front view of a head body showing a second embodiment of the present invention.

9 is a cross-sectional view taken along line CC of FIG.

10 is a sectional view taken along the line DD of FIG.

FIG. 11 is a view similar to FIG. 10 showing a third embodiment of the locking member.

FIG. 12 is a front view of a head body showing a fourth embodiment of the present invention.

13 is a cross-sectional view taken along the line EE of FIG.

FIG. 14 is a front view of a conventional iron golf club head.

15 is a sectional view taken along the line FF of FIG.

[Explanation of symbols]

 1 Metal Head Body 1a Face 2 Recess 2a Inner Wall Surface 3 Embedded Object 5 Locking Member 6 Hole 7a Head 7b Shaft

Claims (1)

[Scope of utility model registration request] 1. An iron golf club head in which a concave portion is formed on a face side of a metal head main body, and an embedded material made of a synthetic resin material is embedded in the concave portion to form a face portion. An iron golf club head, wherein at least one locking member for locking an embedded object is provided on an inner wall surface of a recess formed in the head body.