JPS596074A - Wood club head for golf - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention relates to an improvement in the head structure of a golf wood club whose outer shell is made of i-fiber reinforced plastics (hereinafter abbreviated as FRP), and involves devising the internal structure of the head body. This prevents deformation of the face portion when hitting a ball, and improves the repulsion characteristics and the rigidity of the entire head.

In general, this type of wood club has a head body made of wood such as persimmon or maple that is processed into the desired shape, and a sweet spot of A B on the face.
By arranging mass bodies such as a sole plate member made of metal abrasive material such as lead or brass, and a back weight part on the base plate made of S resin, the sole part and the back part,
It is well known that the ball has an optimized center of gravity design, increased inertia, and improved repulsion characteristics to increase flight distance.

However, with conventional wood club heads like this one, the quality of the club heads has inevitably declined due to the soaring cost of materials due to the difficulty in obtaining raw wood, and the increasing sophistication of processing technology due to the complexity of the shapes.

Therefore, conventionally, the so-called wooden club spatula (marked ``-4'')
In view of this drawback, as disclosed in Japanese Patent Publication No. 51-214, '(6), a wooden rough head consisting of an FL<P outer shell filled with foamed synthetic resin in the core of the head body was developed. In this kind of structure,
In particular, the impact of the 1” RP outer shell on the face when hitting 41 balls (
5,000 to 0.000 kg), the repulsion characteristics were reduced, and the flight distance of the ball was poor.

This invention is intended to solve the conventional drawbacks listed in -1-, and its gist is as follows:-1.
I< l) Inside the head body consisting of an outer shell, there is an FRP outer shell at least in the face part and Fl< l in the back part.
``) A rod-shaped reinforcing body is provided which is connected to the outer shell and is molded to be spaced apart from the -1- side inner circumferential surface and the do side Vj circumferential surface of the GFR1' outer shell. In particular, by molding the A11□ reinforcing book and the FR1' outer shell in one piece, the loss of energy transmission that occurs between the pigments is reduced, and a club head with good repulsion characteristics is obtained.

The present invention will be explained below based on illustrated embodiments.

As shown in FIGS. 1 and 2, reference numeral 1 in the figures is a head main body, which is formed of an FRP outer shell 2 and a hollow core material 3 made of foamed synthetic resin as shown in the figure. A reinforcing body facing in the IJ ball direction X is arranged inside the inside surrounded by 2. The reinforcing body is made of hardened I・' RP (
The reinforcing fibers are glass fibers, carbon fibers, etc. used alone or in combination), and a pipe-shaped or rod-shaped connecting rod 4 is formed 1, and both ends 4 of the connecting rod 4 are formed.
a, 413 is the FRP of the face part of the head body 1
Outer W22 a) Cross-linked between the knee back part FRP outer shell 21) and the face part FRP outer i92
It is connected and fixed to a face reinforcing plate 5 made of hardened FRP embedded in a, and a back weight pigment 6 made of gold R abrasive embedded in the F" RP outer shell 21 of the back part, and Tip portion 4a of the connecting rod 4 on the ball hitting direction side
This has a structure in which the face portion is brought into contact with approximately the sweet spot portion a of the face portion.

In addition, 'j' in the figure is 1) of the sole part of the head main body.
-''RI'3'l- Sole plate pigment fixed to the drum 2c.

Therefore, according to the configuration according to this invention described in 1.
Inside the head body, which is made of an RP outer shell, there is a reinforcing body that connects the FRP outer shell of the face part and the outer shell of the back part. Reliably prevents deformation due to impact acting on the face part1
Since the side of the head is deflected by the outside, the repulsion characteristics are not compromised, and a stable flight can be obtained, and the rigidity of the entire head can be expected to be improved, which has excellent practical effects. It is something that plays.

[Brief explanation of drawings]

FIG. 1 is an explanatory view showing one embodiment of a golf wood club head according to the present invention, and FIG. 2 is a longitudinal side view taken along the line II-II in FIG. 1. 1...Head body, 2...1.1 (1) Outer shell, 2
a...Face part, 21J...Back part, 4.
... Connecting rod, ゛ 5... Face reinforcement plate 6... Back weight pigment, X... Ball hitting direction, a... Sweet spot portion. Patent applicant Nippon Musical Instrument Manufacturing Co., Ltd.

Claims (1)

[Scope of Claims] (J) Inside the head main body made of an FRP outer shell, at least the openings of the FRI-' outer shell of the face portion and the FRP outer shell of the back portion are connected, and the tip on one side in the direction of the ball Flo, which corresponds to the approximate sweet spot of the face part.
) A wood club head for golf that has a connecting rod that is placed in contact with the outer shell. (2. In the golf JL wood club head according to claim 1, both ends of the connecting rod are made of FRP at the 7th part of the head body.
Face reinforcing plate embedded in the outer shell and Fft of the back part
A head characterized in that it is connected to a back weight member embedded in an outer shell.