JPH0431086Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is an improvement to golf clubs, and more specifically, by changing the angle of the club head to the shaft, it is possible to use one club for multiple clubs. This invention relates to an improvement of a golf club that can be used for various purposes.

[Conventional technology]

Conventionally, the lower end of the shaft was rotatably connected to the base end of the head, with the aim of allowing one club to be used for multiple purposes, making it possible to freely set the attachment angle of the head relative to the shaft. There are many known golf clubs that do this.

However, in all of these known clubs, the connection of the shaft to the head is fixed by tightening a screw, so when changing the loft angle of the club face during use, the screw must be loosened each time to adjust the loft. The problem is that the angle is set and the screw has to be firmly tightened to fix the angle again, making the method of use complicated. Of course, in such a structure where the mounting angle between the head and shaft is set by tightening the screw, when using it,
If the screws are not tightened too loosely, the head will rotate when the ball is hit, making it impossible to make a proper shot.

[Problem that the invention attempts to solve]

In view of the above-mentioned problems with conventional variable head angle clubs, the present invention uses a fixed ring installed to move up and down along the shaft, instead of using a fixing screw method between the head and the club. To provide a variable head angle club in which the head can be easily rotated and fixed relative to the shaft by fitting into a part of a plurality of shaft guides extending at a predetermined angle from the upper part of the head. That is.

The present applicant has already proposed a golf club in which the shaft guide is substantially integrally projected from the club head as a means for providing the shaft guide above the club head. No. 274399).

By the way, in the golf club according to the prior invention, since the shaft guide is provided substantially integrally with the club head, a preferred embodiment is such that the shaft guide is provided on the front surface of the club shaft. Therefore, the multiple branch connecting pieces at the upper end of the shaft guide are exposed at the front of the club shaft, making it a little difficult to set the club at the position where the ball will be placed and prepare for hitting the ball (address). There is a problem that it becomes an eyesore.

The present invention is basically the same in spirit as the prior invention, except that a shaft guide for fixing and holding the club shaft at a predetermined selected angle relative to the club head is constructed as a separate component from the club head. The shaft guide is provided on the back of the club shaft so that the shaft guide does not become an eyesore during address.

[Means for solving problems]

The present invention, as a means for achieving the above-mentioned object, provides a shaft angle corresponding to each loft angle on the club face at the outer end of the spindle for pivotally connecting the lower end of the shaft to the proximal end of the club head. A shaft guide having a plurality of connecting pieces branched at different angles is provided protrudingly, and the lower end of the shaft is rotatably attached to the proximal end of the club head by the support shaft, and the support shaft itself is fixed within the club head. It is characterized by this.

〔Example〕

Next, an explanation will be given of an embodiment of the club of the present invention shown in the drawings. As shown in FIG. It is composed of a shaft 5 and a support shaft 8 for pivotally connecting the shaft 5 to the club head 1.

The club head 1 is provided with a mounting end 2 having a lower end receiving portion 3 for a shaft 5 at its base end, and a shaft hole 4 bored laterally into the head from the mounting end 2.

At the lower end of the shaft 5, a cylinder 6 having an outer diameter to be inserted into the shaft hole 4 of the club head 1 is fixedly protruded at a predetermined angle with the shaft 5, and at the lower end of the shaft 5 itself. A shaft hole 7 communicating with the inner diameter of the cylinder 6 is passed through.

On the other hand, connect the lower end of the shaft 5 to the club head 1.
A support shaft 8 for pivoting on the club head 1 has an outer diameter that is inserted into the inner diameter of the tube 6 at the lower end of the shaft, and a
It has a length that allows it to be inserted over the entire length inside the shaft hole 4. Further, at the outer end of this support shaft 8, a shaft guide 9 having a plurality of shaft connecting pieces 10a, 10b, 10c branched from the upper end is integrally provided upwardly protruding at an angle so as to follow the shaft 5. has been done.

This shaft guide 9, when viewed from the side of the club head 1 where the loft angle of the club face 1a is set, as shown in FIG.
A plurality of connecting pieces 10a, 10b, 10c have branching angles such that the shaft 5 can obtain different shaft angles A, B, and C corresponding to the loft angle of the club face 1a with the shaft 5 as the center.
It has at the top end.

Further, the shaft 5 is provided with a fixed ring 12 that moves up and down along the shaft 5 as a means for connecting with any one of the connecting pieces 10a, 10b, and 10c of the shaft guide 9. . As shown in FIG. 7, the fixed ring 12 is configured such that a horizontal shaft 15 inserted into an elongated hole 16 formed in the shaft 5 is constantly pulled downward by a spring 17.

The number of connecting pieces in the shaft guide 9 is preferably about three, as shown in Fig. 3 for shaft angles A, B, and C. In this sense, the three connecting pieces may be divided by providing two grooves D and E as shown by the chain lines in the figure. However, if they are divided by two grooves D and E in this way, the length of the shaft guide 9 itself must be increased, and the shape becomes larger accordingly, which becomes unsightly. Therefore, in this invention, in order to make the size of the shaft guide 9 as small as possible,
Each of the connecting pieces 10a, 10b, 10c is obtained by cutting three grooves 11a, 11b, 11c as shown by solid lines in the figure, and the fixed ring 12 can be fitted into these grooves selectively as appropriate.

As mentioned above, the fixed ring 12 is provided so that it is always pulled downward, so when fitting it to any one of the connecting pieces 10b, for example, the fixed ring 12 must be pulled upward as shown in FIG. By pulling it up and then lowering it as shown in FIG.
b, and is fitted to the upper end of the shaft 5 and the connecting piece 10b.
are connected together. Therefore, as shown in FIG. 6, the portions of the shaft 5 that come into contact with the respective connecting pieces 10a, 10b, and 10c have a cross section such that a portion thereof has a flat surface 18.

As shown in FIG. 1, the shaft hole 4 of the club head 1
First, the cylinder 6 of the shaft 5 is inserted into the shaft 5, and then the support shaft 8 is inserted through the lower end shaft hole 7 of the shaft 5 from inside the cylinder 6 to a position reaching the innermost end of the shaft hole 4 of the head 1. When inserting the support shaft 8, a spring washer 13 is fitted into the shaft lower end shaft hole 7, so that a spring force acts between the lower end of the shaft guide 9 and the front surface of the shaft lower end shaft hole 7. ing.

After the tip of the support shaft 8 is pushed deep into the head shaft hole 4 with the spring washer 13 interposed between it and the shaft end shaft hole 7, it is inserted into the back surface of the head sole 1b as shown in FIG. It is firmly fixed in the coaxial hole 4 by driving a fastener 14 such as a bolt or a stud from above.

[Effect of idea]

The golf club according to the present invention has a club face 1a above the proximal end of the club head 1 as described above.
A shaft guide 9 having a plurality of connecting pieces 10a, 10b, 10c that are branched at angles such that shaft angles corresponding to several loft angles can be obtained is projected, and can be moved up and down along the shaft. Since the shaft 5 and any one of the connecting pieces are connected by the fixed ring 12 provided as shown in FIG.
The loft angle can be adjusted by simply sliding the fixed ring 12 and connecting the shaft 5 to a predetermined connecting piece.

The fact that the loft angle can be adjusted only by moving the fixed ring 12 up and down in this way means that it is much easier to handle during play compared to conventional clubs of this type that are adjusted by tightening screws. Needless to say, it's easy.

Moreover, when the shaft 5 and the connecting piece of the shaft guide 9 are fixed by the fixed ring 12, the connection between the shaft 5 and the club head can be made much more secure than when using screws, so it is easier to hit the ball. There is no risk that the loft angle of the head 1 will become loose when the head 1 is turned. Furthermore, since the fixed ring 12 is provided to slide along the lower end of the shaft 5, the downward pressing force of the spring 17 keeps it engaged with the connecting piece due to centrifugal force during the entire swing process. Together with this, it can be made even more reliable and safe to handle.

Further, in the present invention, the shaft guide 9 is provided integrally with the spindle 8, and the spindle 8 is fixed in the shaft hole 4 of the club head in a state where the shaft 5 can rotate by the spindle 8. The shaft guide 9 connected to the spindle 8 is located on the back side of the shaft 5, and when addressing the ball before hitting the ball, the shaft 5 and the head 1 are seen as one, and the shaft guide 9 This type of variable-shaped club can be reliable and easy to use without causing an eyesore.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the component configuration of a club according to an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the assembled state, and Fig. 3 is a partial view showing the state before the shaft is fixed. A cutaway side view, FIG. 4 is a plan view, FIG. 5 is a side view showing the state after the shaft is fixed, FIG. 6 is a sectional view taken along the - line in FIG. 3, and FIG. 7 is a - line in FIG. 2. FIG. 1...Club head, 1a...Club face, 1b...Head sole, 2...Mounting end, 3...
...Lower end receiving part, 4...Shaft hole, 5...Shaft, 6...
... Tube, 7 ... Shaft hole, 8 ... Support shaft, 9 ... Shaft guide, 10a, 10b, 10c ... Connection piece, 1
1a, 11b, 11c...groove, 12...fixed ring,
13... Spring washers, 14... Stops, 1
5...Horizontal axis, 16...Long hole, 17...Spring, 18
...Flat surface.

Claims (1)

[Scope of utility model registration request] At the outer end of the support shaft for pivotally connecting the lower end of the shaft to the proximal end of the club head, there is provided a shaft guide with a plurality of connecting pieces branched at angles such that a shaft angle corresponding to each loft angle on the club face can be obtained. The support shaft itself is fixed within the club head so that the lower end of the shaft is rotatably attached to the proximal end of the club head by the support shaft, and the upper end of the connecting piece of any one of the shaft guides is attached to the shaft. A golf club comprising a vertically movable fixing ring for fitting and fixing a shaft and a shaft together.