JPS61240977A - Wood club 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 [Technical Field of the Invention] This invention relates to an improvement in the head structure of a golf wood club.

[Technical background of the invention and its problems]

In general, in a wood club set, the shape of the entire width of the ball's hitting surface of the head changes the vertical launch inclination angle of the ball, called the "loft angle", in stages depending on the number of balls, from No. 1 to No. 5, for example. On the other hand, the launch inclination angle in the left and right direction, which is called the "face angle",
It is commercially available with the horizontal curvature called ``bulge'' and the vertical curvature called ``roll'' unified to constant design values.

When purchasing such a wood club set, it is important not only to select the hardness of the shaft, the weight of the head, and the overall balance by test-hitting, but also to check the inclination angle and curvature of the ball hitting surface of the head, depending on the player's preference. Although I purchased it with the idea that the direction of the goal would be slightly affected by the skill and batted ball of 7 ohms, in reality, the design values are fixed for each club in the set, and for this reason, If the ball batting skills improve or the ball hitting form changes after purchase, the required characteristic values of the club may change and the club may no longer match the design values at the time of purchase, making it necessary to replace the club. Beginners tend to hesitate to purchase luxury products because they are unsure of the optimal club head.

[Purpose of the invention]

The present invention has been made under the above circumstances, and an object of the present invention is to provide a golf wood club in which the design value of the ball hitting surface of the head can be finely adjusted according to the skill of the ball hitter and the ball hitting form. The purpose is to

[Summary of the invention]

In order to achieve the above object, the present invention has a structure in which a ball hitting face plate having a predetermined inclination angle and curvature is selectively and replaceably provided over the entire width of the ball hitting surface of the head body. The ball hitting surface of the head can be finely adjusted to a design value according to the required characteristics of each ball hitter.

[Embodiments of the invention]

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

As shown in FIGS. 1 and 2, reference numeral 1 in the drawings is a head body of a wood club according to the present invention, and a ball-hitting face plate 2 is detachably attached to the entire width of the ball-hitting face side 1a thereof. The bed body 1 is made of wood, metal shell or cpRp.
(Carbon fiber reinforced glass) shell etc., while the ball hitting face plate 2 is made of ABS resin, Kepler, etc.
FRP with reinforcing fibers such as boron fiber and carbon fiber,
Alternatively, it is made of ceramic or the like, and six convex portions 21 provided on the back side of the ball hitting face plate 2 are fitted into the recessed portion 11 provided on the ball hitting surface side 1a of the head body l to prevent vertical and horizontal displacement. At the same time, it is fixed in a replaceable manner by fixing with screws 3.

By the way, the ball-hitting surface plate 2 has a curved surface whose surface (ball-striking surface) is designed to have a predetermined loft angle, face angle, bulge curvature, and roll curvature. A plurality of types are available and can be selectively replaced on the ball hitting surface side 1a of the head body 1 according to the required characteristics of the ball hitter.

In addition, in the embodiment of the present invention, when attaching the ball hitting face plate over the entire width of the ball hitting face plate of the head body, reinforcing the sweet spot portion or the entire surface of the ball hitting face plate by inserting a face surface reinforcing plate is similar to the conventional method. be.

〔Effect of the invention〕

As explained above, according to the present invention, the entire width of the ball hitting surface of the head body is configured with a replaceable ball hitting face plate, and the ball hitting face plate can be replaced with one having a predetermined inclination angle and curvature. It is possible to selectively change the curved surface form of the ball hitting surface of the head according to the required characteristics due to changes in the skill of the ball hitter and the ball hitting form, making it possible to finely adjust the design value of the ball hitting surface of the head with a single club. It has excellent effects such as:

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of a golf wood club according to the present invention, and FIG. 2 is an exploded perspective view of the same. l...Head body, Ia...Ball hitting surface side, 11...Concavity, 2...
...Ball hitting face plate, 21...Protrusion,
3...screw.

Claims (2)

[Claims] (1) A golf wood club in which a ball hitting face plate having a predetermined inclination angle and curvature is selectively and replaceably provided over the entire width of the ball hitting surface of the head body. (2) The golf wood club according to claim 1, wherein the head body and the ball-hitting face plate are fixed by fitting each other in a concave-convex manner.