Golf practice equipment

Abstract

To provide a golf practice tool that can effectively utilize a shaft with a sleeve. [Solution] A golf practice device 1 that can be detachably attached to a shaft 50 with a sleeve 60 having a screw hole 61 at the tip for golf practice, comprising a main body 10 and an attachment portion 11 formed on the main body 10 into which the sleeve 60 is inserted, the attachment portion 11 having an abutment surface 11a against which the tip of the sleeve 60 abuts, the main body 10 having a through hole 12 that opens into the abutment surface 11a, and the main body 10 can be fixed to the sleeve 60 by inserting a screw 30 into the through hole 12 and threading it into the screw hole 61.

Description

[Technical Field]

[0001] The present invention relates to a golf practice device. [Background technology]

[0002] Recent drivers generally include a variable sleeve between the shaft and the head to allow for easy adjustment of the loft angle, lie angle, etc. The variable sleeve is fixed to the tip of the shaft, and after the variable sleeve is inserted into the hosel of the head, the head can be detachably attached to the shaft by threading a screw into a threaded hole formed at the tip of the variable sleeve. Specific configurations of variable sleeves are disclosed in, for example, Patent Documents 1 to 3. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-124092 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-178556 [Patent Document 3] Japanese Patent Application Laid-Open No. 2014-91048 Summary of the Invention [Problem to be solved by the invention]

[0004] As disclosed in the above Patent Documents 1-3, there are various types of variable sleeve adjustment mechanisms for adjusting loft angle, lie angle, etc., and since they differ depending on the manufacturer, etc., there are increasing cases where when replacing a driver head with a new one, the variable sleeve must also be changed accordingly.

[0005] However, since it is difficult to remove the variable sleeve fixed to the shaft, there is a problem that the shaft is easily left unused.

[0006] Therefore, the object of the present invention is to provide a golf practice tool that can effectively utilize a shaft with a sleeve. [Means for solving the problem]

[0007] The object of the present invention is achieved by providing a golf practice device that can be detachably attached to a shaft with a sleeve having a threaded hole at the tip for golf practice, the golf practice device comprising a main body and an attachment portion formed on the main body into which the sleeve is inserted, the attachment portion having an abutment surface against which the tip of the sleeve abuts, the main body having a through hole that opens onto the abutment surface, and the main body being able to be fixed to the sleeve by inserting a screw into the through hole and threading it into the screw hole.

[0008] In this golf practice tool, the main body may be formed in a cylindrical shape, and the attachment part may be provided at one end of the main body. An attachment part may be provided at the other end of the main body, to which a weight can be detachably attached. [Effects of the Invention]

[0009] The golf practice device of the present invention allows for effective use of the sleeved shaft. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a cross-sectional view of a golf practice device according to an embodiment of the present invention. [Figure 2] 2 is a cross-sectional view showing the golf practice tool shown in FIG. 1 attached to a shaft with a sleeve. FIG. [Figure 3] FIG. 10 is a cross-sectional view of a golf practice device according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a golf practice tool according to one embodiment of the present invention. The golf practice tool 1 shown in FIG. 1 is configured to be detachably attached to a shaft 50 with a sleeve 60 for golf practice. The sleeve 60 is an adjustable sleeve that can adjust the loft angle, lie angle, etc., as disclosed in Patent Documents 1-3, for example, and a golf club head such as a driver is detachably attached to the sleeve 60. A screw hole 61 is formed at the tip of the sleeve 60, into which a screw is threaded when attaching the golf club head.

[0012] The golf practice tool 1 of this embodiment includes a cylindrical main body 10 and a mounting portion 11 formed at one end of the main body 10 and configured as a storage space into which a sleeve 60 is inserted. The mounting portion 11 is formed to match the shape of the sleeve 60 so that substantially the entire inserted sleeve 60 fits therein, and includes an abutment surface 11a against which the tip of the sleeve 60 abuts.

[0013] The other end of the main body 10 is formed with an attachment portion 13 to which the weight 20 is attached. The attachment portion 13 is hollow and has a threaded groove on its inner circumferential surface, and the weight 20 is detachably attached to the attachment portion 13 by screwing onto a threaded portion 21 provided on the weight 20. The weight 20 is formed in a disk shape with approximately the same diameter as the main body 10, and by attaching it to the attachment portion 13, the external shape of the golf practice tool 1 becomes cylindrical.

[0014] The main body 10 is formed with a through hole 12 that connects the mounting portion 11 and the attachment portion 13. The through hole 12 opens substantially at the center of the contact surface 11a.

[0015] In the golf training tool 1 having the above configuration, the sleeve 60 fixed to the shaft 50 is inserted into the attachment portion 11, and then the male thread portion of the screw 30 is inserted into the through-hole 11 via the attachment portion 13 and threaded into the threaded hole 62 of the sleeve 60, thereby detachably fixing the main body 10 to the sleeve 60. After this, by attaching the weight 20, the shaft 50 and the golf training tool 1 can function as a training tool for swing practice, as shown in Fig. 2. By preparing a plurality of weights 20 with different weights and switching them as needed, training can be efficiently performed according to the purpose, such as improving muscle strength or swing speed.

[0016] The overall shape of the golf training tool 1 is not particularly limited, and various shapes of known golf training tools can be adopted so that it can be used as a training tool for swing practice by attaching it to the shaft 50. For example, instead of providing the mounting portion 13 on the main body 10, as shown in Figure 3, a configuration may be made in which multiple (e.g., four) blades 14 are provided on the other end of the main body 10, thereby generating large air resistance during swing practice. In Figure 3, components that are the same as those in Figure 1 etc. are given the same reference numerals.

[0017] Alternatively, the golf training tool 1 may be configured to include a mechanism in which a centrifugal force acting during a swing causes a movable body to move within the main body 10, generating a clicking sound.

[0018] Furthermore, a large practice head that imitates an actual golf club head may be provided on the other end of the main body 10 to configure the golf practice tool 1. If the sleeve 60 is a variable sleeve, the adjustment mechanism of the sleeve 60 can be used to adjust the loft angle of the practice head.

[0019] In this way, the golf practice tool of the present invention can be easily attached and detached to the sleeved shaft, and its shape can be varied in many ways. Therefore, unused sleeved shafts at home or in stores can be effectively used as practice tools for swing practice. [Explanation of symbols]

[0020] 1. Golf practice equipment 10 Main Unit 11 Mounting part 11a Contact surface 12 Through holes 13 Mounting part 20 weights 30 screws 50 shaft 60 sleeves 61 screw hole

Claims

1. A golf practice device that can be detachably attached to a shaft with a sleeve having a screw hole at the tip, allowing golf practice to be performed. It comprises a cylindrical body and a mounting portion formed in the body into which the sleeve is inserted, The mounting portion has a contact surface against which the tip of the sleeve abuts, The main body has a through hole formed that opens to the contact surface, The main body can be fixed to the sleeve by inserting a screw into the through hole and screwing it into the screw hole. The aforementioned sleeve is an adjustable sleeve on which a driver golf club head is attached, allowing for adjustment of the loft angle and lie angle. The mounting portion is a golf practice device formed to match the shape of the sleeve so that the inserted sleeve fits into it.

2. The main body is formed in a cylindrical shape, The mounting portion is provided on one end of the main body, The golf practice device according to claim 1, further comprising a mounting portion on the other end of the main body, to which a weight can be detachably attached.

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