JP2003265654A - Knockdown golf club - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a knockdown golf club by which one's liking head, shaft and grip can simply and economically be combined and partial exchange is possible. <P>SOLUTION: In the knockdown golf club, at least a single place of the golf club 10 is divided, and the divided part can be attached and detached with a shaft joint consisting of a male metal fitting 1 and a female metal fitting 2. With the male metal fitting 1 fit to the female metal fitting 2, a combining means 3 automatically operates to complete the fitting and the rotation of both of them is prevented by a twisting prevention means. When operating a detaching means 5, both of them can be detached from each other. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled golf club in which the head, shaft and grip of a golf club can be easily replaced as necessary. 2. Description of the Related Art Golf players select and use golf clubs according to their physique, skill level, etc., in order to obtain the desired hitting ball and swing as desired. Then, the golf clubs are properly used according to the user's preference and the situation of the golf course. Here, there is no problem if the golf club selected once is always the best one for me. However, the best golf club can be obtained due to technical improvement, the condition at that time, and other various circumstances. There are cases where it is not at hand. Further, since golf clubs are used in a set of a plurality of golf clubs, golf bags are generally heavy and difficult to carry. In addition, even if one of the head, shaft, or grip is damaged, it is generally difficult to replace it partially. For example, even if only the shaft of a club that likes the grip is damaged, I had to discard it. [0005] However, if you always want to use a golf club with a combination of head, shaft and grip that suits you, you will be prepared for the appropriate expenses and difficulties in transportation. Must. Therefore, there was a certain limit in the selection of golf clubs. Accordingly, the present invention provides an assembly-type golf club in which a general person can easily and economically obtain his / her favorite combination of head, shaft and grip and can be partially replaced. It is intended to do. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the gist thereof is that at least one portion of a golf club is divided, and An assembly-type golf club in which split parts can be joined and detached by a shaft joint made of a female metal fitting,
When the male fitting is inserted into the female fitting, the coupling means automatically operates to complete the coupling between them, and the torsion prevention means prevents the rotation of the two, and when the separation means is operated, the assembled golf It relates to the club. DETAILED DESCRIPTION OF THE INVENTION The golf club of the present invention is of an assembly type by dividing at least one place and providing a shaft coupling at the divided portion. In other words, by dividing the head and shaft, between the shaft and grip, and the middle of the shaft as members, it is possible to combine various members so that the optimum golf club for the user can always be obtained. Yes. And the coupling | bonding and detachment | leave between members are enabled by providing the shaft coupling which consists of a male metal fitting and a female metal fitting in a division | segmentation part. Here, the shaft coupling used in the assembly type golf club of the present invention is a one-touch type shaft coupling in which when the male fitting is inserted into the female fitting, the coupling means automatically operates to complete the coupling of both. is there. For this reason, the members can be joined and detached very easily. The one-touch type shaft coupling will be described in detail. One end of the male metal fitting and the female metal fitting is composed of a head, a shaft,
In divided portions of individual members such as grips, they are formed integrally with the members or separately fixed by bonding or other means. For example, if the pressing member tightens the outer peripheral surface of the other end of the male metal fitting, the connection can be maintained. That is, at the other end of the male metal fitting, a step portion having a small diameter at the tip side is formed, and at the other end of the female metal fitting,
A pressing member (ball, etc.) supported by an inner collar movable in the axial direction is arranged, and the inner collar is made of an elastic material (coil spring, etc.).
The pressing member is covered with an outer collar which is repelled and fixed to the female metal fitting, and is used as a coupling means. In addition, an inclined surface with a small diameter toward the tip is formed on the inner periphery of the outer collar,
Prevents the inner color from coming off. Next, the coupling procedure will be described. First,
When the other end of the male fitting is inserted into the other end of the female fitting, the pressing member of the female fitting comes into contact with the stepped portion of the male fitting. When the male fitting is further inserted, the pressing member and the inner collar are moved to the back by the stepped portion, but the inner side of the outer collar has a large diameter. Ride on the outer surface of the bracket. Then, the pressing member and the inner collar are returned by the elastic material. In this state, even if a pulling force acts on the male fitting, the pressing member tightens the outer peripheral surface of the male fitting by the inclined surface of the outer collar, so that the connection between the fittings is maintained. Therefore, just by inserting the male metal fitting into the female metal fitting, the coupling means automatically operates to complete the coupling between the two. Also, in a golf club, the head should not rotate freely when hitting a ball, so it is necessary to prevent the combined male and female fittings from rotating. Therefore, the torsion prevention means prevents both rotations. However, when the coupling means having the above structure is adopted, the cross section on the tip side of the stepped portion of the male metal fitting is not made circular, for example, a polygon. By setting it, it becomes a twist prevention means. In other words, the polygonal portion of the male fitting hits the inner surface of the female fitting so that rotation is prevented. On the other hand, when both are separated, the end of the inner collar protrudes from the outer collar, thereby providing a separating means. That is, when the end of the inner collar that protrudes from the outer collar is pushed into the back, the pressing member also moves at the same time to reach the large-diameter portion on the back side of the outer collar. Then, the tightening of the pressing member by the inclined surface of the outer collar is released. Then, by pulling out the male fitting while maintaining this state, the detachment can be easily performed. in this way,
If the detaching means (in this case, the inner collar) is operated, both can be easily detached. If the force that pushes the inner collar is released after the male metal member is detached, the inner collar is returned to the original state again by the elastic material, and the coupling and detachment can be repeated. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an example of the assembly-type golf club of the present invention. The assembled golf club 10 shown in FIG. 1 is divided between the head 11 and the shaft 12, and between the shaft 12 and the grip 13, so that a variety of types can be obtained simply by preparing several heads, shafts, and grips. A golf club is obtained. The two divided portions can be connected and disconnected by shaft couplings, respectively.
The male fitting 1 is formed integrally with the grip 13, and the female fitting 2 is formed integrally with the grip 13. Shaft 1
Since the male metal fitting 1 is integrally formed at one end and the female metal fitting 2 is integrally formed at the other end, it is possible to mistake the coupling location of the head 11 and the shaft 12, and the shaft 12 and the grip 13. Absent. FIG. 2 is an enlarged half sectional view showing a divided portion between the head 11 and the shaft 12 in the assembled golf club shown in FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 2, a female fitting 2 into which the male fitting 1 of the head 11 is inserted is provided at one end of the shaft 12. The female fitting 2 is stepped portion 2 ₀ is formed, the deep side 2
₁ has a hexagonal cross section. A coupling means 3 is provided at the insertion opening of the female fitting 2. The coupling means 3 comprises a coil spring 3 ₁ , an inner collar 3 ₂ , a ball 3 ₃ , and an outer collar 3 ₄ . Then, the coil spring 3 ₁ is disposed in the insertion opening female fitting 2,
An inner collar 3 ₂ made of synthetic resin is disposed together with the ball 3 ₃ so as to face the coil spring 3 ₁ . Moreover, the whole of the outer collar 3 ₄ covers, the outer collar 3 ₄ is screwed into the female fitting 2. Incidentally, the inner peripheral surface of the outer collar 3 ₄ has an inclined surface the tip is gradually reduced in diameter. [0019] the relationship between the color 3 ₂ and the ball 3 _3, as shown enlarged in FIG. 4, the tapered hole provided on the inner collar 3 _2, balls 3 ₃ is fitted from the outer peripheral side It is what. Accordingly, the ball 3 ₃ can be moved above the position shown in FIG. The head 11 and the shaft 12 can be coupled simply by inserting the male fitting 1 of the head 11 into the female fitting 2 of the shaft 12. That is, when we insert the male fitting 1 into the female fitting 2, the step portion 1 ₀ of the male fitting 1 is pushing the ball 3 _3, leading to the large diameter portion of the inner side of the outer collar 3 _4. Then the ball 3 ₃
There rides distally 1 ₁ male fitting 1, the ball 3 ₃ is returned together with the inner collar 3 ₂ by a coil spring 3 _1. As a result, when a pulling force acts on the male fitting 1, the ball 3 ₃
There automatically tighten the male fitting 1 by the inclined surface which is reduced in diameter of the outer collar 3 _4, coupling is completed is prevented coming off the male fitting 1. Further, the tip end 1 than the step portion 1 ₀ of the male fitting 1
₁ has a hexagonal cross section, and the deep side 2 of the female fitting 2
Corresponds to ₁ cross-sectional shape. The reason why both cross sections are hexagonal is to prevent the male metal fitting 1 and the female metal fitting 2 from rotating. If the cross section is not circular, the hexagonal shape is not limited. It may have a keyway. Accordingly, in this embodiment, the distal end 1 ₁ of the male fitting 1 and the deep side 2 ₁ female fitting 2 functions as prevention means 4 twisting. Incidentally, the step portion 2 ₀ of the step portion 1 ₀ and the female fitting 2 of the male fitting 1
And the male metal fitting 1 is prevented from getting into the back. On the other hand, in the case where the head 11 is detached from the shaft 12, the tip of the inner collar 3 ₂ is connected to the outer collar 3 _4.
Since this protrudes from the end portion of this, it is used as the detaching means 5. That is, when pulling out the head 11 pushes the inner collar 3 ₂ tip shaft 12 side. Then, the tightening of the ball 3 ₃ by the inclined surface of the outer collar 3 ₄ is released. Then, it is possible to pull out the head 11 remains pushed in the inner collar 3 ₂ simply by pulling.
Also, release the inner collar 3 ₂ presser thereafter, as shown in FIG. 5, the inner collar 3 ₂ by a coil spring 3 ₁ returns to the original state, it becomes possible to bond again. The divided part of the shaft 12 and the grip 13 has the same structure, and the same structure can be adopted when the shaft is divided into two parts. FIG. 6 is a perspective view showing an example of a golf bag 20 that accommodates the assembled golf club of the present invention having a shaft divided into two parts. The length of the golf club is halved by dividing the shaft into two parts, and the height of the conventional golf bag indicated by the dotted line can be lowered as indicated by the solid line. FIG. 7 is a perspective view showing another example of the assembly type golf club of the present invention. The assembling-type golf club 10 shown in FIG. 7 is obtained by dividing the head 11 and the shaft 12, and the head 11 becomes a sand wedge, a pitching wedge, No. 9 ... No. 5 as a driver. The length L of the connecting portion with the shaft 12 is gradually increased. That is, the length L is the shortest in the sand wedge shown in FIG. 7B and the longest in the driver shown in FIG. 7D. Then, one shaft 12 with a grip 13 as shown in FIG. 7A is prepared, and FIG.
It is combined with various heads 11 shown in (D). That is, the shortest sand wedge is short from the male metal fitting 1 to the head main body, and the driver has the long male metal fitting 1 attached to the head main body. The grip 13 is formed by molding rubber with a mold or the like, and has a special shape that matches the finger. As described above, the assembled golf club of the present invention can be easily connected and detached with a one-touch type shaft coupling, so that the head, shaft, grip, etc. can be used as required. For example, a single grip can be used for all the club sets. Therefore, it is possible to always have a golf club according to one's preference, golf course situation, and the like. In addition, since the golf club can be made compact, transportation becomes easier and the golf bag becomes smaller. Furthermore, by replacing the shaft with a short one, it can be used for women and children, and partial replacement for breakage, scratches, etc. is possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an example of an assembled golf club of the present invention. FIG. 2 is an enlarged half sectional view showing a divided portion (coupled state) between a head and a shaft in the assembled golf club shown in FIG. 1; FIG. 3 is a cross-sectional view taken along the line AA of FIG. 4 is an enlarged cross-sectional view showing a part of the coupling means in the assembled golf club shown in FIG. 1. FIG. FIG. 5 is an enlarged half sectional view showing the head and shaft in the process of being detached from FIG. 2; FIG. 6 is a perspective view showing an example of a golf bag storing the assembly type golf club of the present invention. FIG. 7 is a perspective view showing another example of the assembly-type golf club of the present invention. [Explanation of Symbols] 1. Male fitting 1 _0. Male fitting step 1 _1. Male fitting tip side 2. Female fitting 2 _0. Female fitting step 2 _1. Female fitting deep side 3. ₁ ... coil spring 3 ₂ ... inner collar 3 ₃ ... ball 3 ₄ ... outer collar 4 ... twisting prevention means 5 ... separation means 10 ... golf club 11 ... head 12 ... shaft 13 ... grip 20 ... golf bag

Claims (1)

What is claimed is: 1. At least one portion of a golf club (10) is divided, and a divided portion is joined and detached by a shaft joint comprising a male fitting (1) and a female fitting (2). When the male fitting (1) is inserted into the female fitting (2), the coupling means (3) is automatically operated to complete the coupling between them, and the torsion preventing means (4 ) Is prevented from rotating, and when the detaching means (5) is operated, the both can be separated.