JP7296240B2 - golf swing trainer - Google Patents

Description

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to recognize the moment when a head speed exceeds a certain value during golf swing practice, and to easily set a predetermined value by changing the value of the head speed (or swing speed) at which the device operates. It relates to a golf swing training machine.

Conventionally, when the speed at which the head is shaken exceeds a certain value, the attraction of the weight by the magnet is released, and the weight collides with the opposite side of the internal space of the head (device), generating a collision sound. A golf swing training machine that can confirm that the speed exceeds a certain value has been proposed (Patent Document 1, Patent Document 2, Patent Document 3).
In the swing training machines of Patent Document 1 and Patent Document 2, the value of the head speed at which the device operates can be changed as appropriate by the swing practitioner according to his/her exercise ability and training situation. It is not possible to clarify the state of operation when fine-tuning the operating head speed.

Furthermore, in the swing training machines of Patent Documents 1 to 3, since the weight is housed in the internal space of the head (device), the collision sound of the weight is small, and the moment when the head speed exceeds a certain value is recognized. There is a problem that it is difficult to
Therefore, the applicant of the present application has already solved the above problem in Patent Document 4 (Japanese Patent Application No. 2016-145052), and by mounting the weight so as to be exposed to the outside, it is possible to increase the collision sound of the weight. Further, a golf swing training machine is proposed in which the impact at the time of collision can be increased by enlarging the weight, and it is easy to recognize whether or not the head speed exceeds a certain value by a correct swing.

Japanese Patent No. 5662948 Utility Model Registration No. 3078785 Japanese Patent No. 5497200 JP 2018-15025 A

In the golf swing training machine as described above, it is desirable to use a neodymium magnet with strong magnetic force as the magnet that attracts the weight. There is a problem that the
Therefore, there is a need to realize a golf swing training machine having a structure in which the weight can be attracted even by a small neodymium magnet and the weight does not directly give a large impact to the neodymium magnet.
Furthermore, there is a need to provide a golf swing training machine that is excellent in strength and durability, has a structure that facilitates assembly work, and allows the value of the head speed at which the device operates to be easily set to a predetermined value by changing it. be.
In addition, in order to realize a golf swing training machine equipped with a structure that emits an operation sound in order to clarify the state of operation when finely adjusting the head speed at which the device operates, the number of parts must be increased. There is a problem that failures are likely to occur, and a problem that assembly work is time-consuming.

Furthermore, there is a problem that it is difficult to align the position of the dial for adjusting the swing speed with the position of the scale.
Therefore, a golf swing training machine having a compact structure, excellent in strength and durability, easy to assemble, and having a structure in which the position of the dial and the position of the scale can be correctly and easily aligned is realized. I have a problem that I want to

It is an object of the present invention to easily change the value of the head speed at which the apparatus operates and set it to a predetermined value, and to reduce the collision sound (operation sound) caused by the weight by mounting the weight so as to be exposed to the outside. To provide a golf swing training machine which has a compact structure using small magnets, is excellent in strength and durability, and is easy to assemble.
Another object of the present invention is to provide a golf swing training machine that can clarify the state of operation when finely adjusting the value of the head speed at which the device operates, and that has an excellent operational feeling. be.
Still another object of the present invention is to provide a golf swing training machine having a structure that allows the position of the dial and the position of the scale to be correctly and easily aligned.

(1) The present invention includes "a connecting portion fixed to the distal end of a shaft, a projecting portion extending from the connecting portion, and a weight mounted on the projecting portion in a slidable state along the projecting portion. a body, a magnet that attracts and holds the weight toward the connecting portion, and a retaining portion that is formed at the tip of the projecting portion and prevents the weight from coming off the projecting portion. When the swing speed exceeds a predetermined value, the weight body is released from the attraction of the weight body by the magnet, and the weight body moves to come into contact with the retaining portion. A golf swing training machine configured to generate a collision sound between a dial member rotatably mounted on the protrusion and an inner peripheral surface of the dial member, and the An annular member that abuts a magnet-side end surface of the weight, and a magnet holding member that holds a magnet for attracting the magnet-side end surface of the weight, the magnet holding member being formed on the annular member. The position of the magnet holding member in the direction of movement of the weight is always fixed, and when the dial member is rotated, the direction of movement of the weight is changed. A golf swing training machine that can change the distance between the magnet and the weight by making the position of the annular member variable.

(2) In addition, the present invention provides "a positioning member having a positioning portion that sequentially engages with the unevenness of an annular gear formed on the inner surface of the connecting portion side end of the dial member according to the rotation of the dial member. The main feature is a golf swing training machine.
(3) In the golf swing training machine of the present invention, the permanent fixation of the position of the magnet holding member in the moving direction of the weight is such that the enlarged-diameter portion formed in the projecting portion is the end surface of the magnet holding member on the weight body side. When the dial member is rotated, the position of the annular member is changed in the moving direction of the weight so that the annular member can slide only in the moving direction of the weight. and the magnet holding member is arranged in a state of mutual engagement, and the annular member is arranged so as not to rotate together with the dial member.
(4) In the golf swing training machine of the present invention, the magnet holding member is made of synthetic resin, and can reduce the impact caused by the collision between the end face of the magnet and the magnet-side end face of the weight. Good to have.

(5) In the golf swing training machine of the present invention, the magnet holding member is fitted into a non-cylindrical recess formed in the annular member from the weight body side, and is pulled out to the connecting portion side. It may be locked by the annular member so that it does not.
(6) In the golf swing training machine of the present invention, the positioning member is made of a synthetic resin, is formed in an annular shape, has a plate spring portion supporting the positioning portion on an outer peripheral portion, and the dial member may be non-rotatably fixed inside the .
(7) In the golf swing training machine of the present invention, the dial member may have a seal attached to the outer peripheral surface thereof, on which a scale indicating the value of the swing speed at which the device operates is written.

(1) In the golf swing training machine of the present invention configured as described above, by rotating the dial member, the annular member can be moved and the position of the weight can be changed easily and reliably. In the above, the speed (swing speed) of the head portion at which the attraction of the weight body by the magnet is released and the device operates can be appropriately changed to practice the swing.
In particular, the magnet holding member for holding the magnet for attracting the end surface of the magnet on the magnet side of the weight is arranged in the recess or the through hole formed in the annular member, so that the weight directly attaches to the magnet. Collision can be prevented, and not only can the durability of the device be improved, but only a slight gap can be provided between the magnet and the weight, which wastes the adsorption and attraction force of the weight by the magnet. can be utilized without
Therefore, it is possible to use a small and fragile magnet, and to make the device compact.

(2) In the golf swing training machine of the present invention, the positioning member has a positioning portion that sequentially engages with the unevenness of the annular gear formed on the inner surface of the connecting portion side end of the dial member as the dial member rotates. , the head speed value at which the device operates can be easily set to a predetermined value, and the state of operation when fine-tuning the head speed value at which the device operates can be clarified. Therefore, it is possible to provide a golf swing training machine with excellent operational feeling.

(3) In the golf swing training machine of the present invention, the expanded diameter portion formed in the projecting portion is pressed against the end surface of the magnet holding member on the side of the weight body, whereby the position of the magnet holding member is always fixed, and the dial is pressed. When the member is rotated, repositioning of the annular member in the direction of movement of the weight engages the magnet retaining member such that the annular member is slidable only in the direction of movement of the weight. The head speed value at which the device operates with a simple and durable structure is obtained by preventing the ring member from rotating together with the dial member. can be changed.

(4) Further, in the golf swing training machine of the present invention, the magnet holding member is made of a synthetic resin, and the impact caused by the collision between the end face of the magnet and the magnet-side end face of the weight can be reduced. By adopting , it is possible to prevent damage to the magnet and increase the durability of the device.
(5) In the golf swing training machine of the present invention, the magnet holding member is fitted into a non-cylindrical recess formed in the annular member from the weight body side, and is pulled out to the connecting portion side. assembling the device is facilitated, and the ring member is prevented from rotating together with the dial member when the dial member is rotated. It can be prevented with a simple configuration.

(6) In the golf swing training machine of the present invention, the positioning member is made of synthetic resin, is formed in an annular shape, has a leaf spring portion that supports the positioning portion on the outer peripheral portion, and is attached to the dial member. If it is fixed inside so as not to rotate, it is possible to realize a positioning portion that sequentially engages with the recesses and projections of the annular gear without increasing the number of parts.
(7) In the golf swing training machine of the present invention, when a seal with a scale indicating the value of the swing speed at which the device operates is attached to the outer peripheral surface of the dial member, the dial position and The position of the scale can be adjusted correctly and easily.

FIG. 1 shows the vicinity of the tip of a golf swing training machine of one embodiment embodying the present invention, (A) is a vertical cross-sectional view of the head portion, and (B) is a magnet holding member and an annular member of the head portion omitted. and (C) is a partial longitudinal sectional view of the head portion. FIG. 2 is a front view showing the entire golf swing training machine of the present invention and an enlarged head portion. FIG. 3 is an exploded perspective view of parts constituting the head portion of the golf swing training machine of the present invention. FIG. 4 shows the connecting portion of the golf swing training machine of the present invention, (A) is a front view, (B) is a left side view, and (C) is a plan view showing how the positioning member is assembled. FIG. 5 shows the dial member and label of the golf swing training machine of the present invention, (A) is a front view of the dial member, (B) is a perspective view of the dial member, (C) is a plan view of the dial member, (D ) is a bottom view of a dial member, and (E) is a front view of a seal with scales. 6 shows the positioning member of the golf swing training machine of the present invention, (A) is a front view, (B) is a left side view, (C) is a plan view, (D) is a bottom view, and (E) is a perspective view. It is a diagram. FIG. 7 shows an annular member of the golf swing training machine of the present invention, (A) is a front view, (B) is a left side view, (C) is a plan view, (D) is a bottom view, and (E) is a perspective view. FIG. (F) is a plan view showing how the magnet holding member is assembled. FIG. 8 shows the magnet holding member of the golf swing training machine of the present invention, (A) is a front view, (B) is a left side view, (C) is a plan view, (D) is a bottom view, and (E) is Perspective view, (F) is a front view showing how the magnet is assembled, (G) is a left side view showing how the magnet is assembled, (H) is a plan view showing how the magnet is assembled, (I) is It is a bottom view which shows a mode that the magnet was assembled|attached. FIG. 9 is a diagram showing the positional relationship between the weight and the magnet (and the annular member) of the golf swing training machine of the present invention. B) is a partial cross-sectional view showing a state in which the operating head speed is set high, and (C) and (D) are partial cross-sectional views showing a state in which the magnet is attracted to the weight. FIG. 10 shows the head portion of the golf swing training machine of the present invention, (A) is a front view showing a state where the head speed at which the device operates is set low, and (B) is a state where the head speed at which the device operates is set low. It is a partial vertical cross-sectional view showing a state. FIG. 11 shows the head portion of the golf swing training machine of the present invention, where (A) is a plan view and (B) is a front view showing the state at the moment when the device is operated and the weight collides with the retainer. .

The golf swing training machine of the present invention includes a "connecting portion fixed to the tip of a shaft, a projecting portion extending from the connecting portion, and mounted on the projecting portion so as to be slidable along the projecting portion. a magnet that attracts and holds the weight toward the connecting portion; and a retaining portion that is formed at the tip of the protrusion and prevents the weight from slipping out of the protrusion. and when the swing speed exceeds a predetermined value, the weight is released from the attraction of the weight by the magnet, and the weight moves to move the retaining portion. A golf swing training machine configured to generate a collision sound between the dial member and the inner peripheral surface of the dial member, which are rotatably ring-mounted with respect to the protrusion, and are screwed together an annular member that abuts the magnet-side end surface of the weight; and a magnet holding member that holds a magnet for attracting the magnet-side end surface of the weight, the magnet holding member being formed on the annular member. The position of the magnet holding member in the movement direction of the weight is always fixed, and when the dial member is rotated, the weight of the weight A golf swing training machine that can change the distance between the magnet and the weight by changing the position of the annular member in the moving direction, and the dial member is connected according to the rotation of the dial member. A golf swing training machine provided with a positioning member having a positioning portion that sequentially engages with the unevenness of the annular gear formed on the inner surface of the inner surface of the side end ”, which is suitably embodied by the embodiments described below. be able to.

An embodiment of a golf swing training machine embodying the present invention will be described below.
As shown in FIGS. 1 and 2, a golf swing training machine 10 according to one embodiment of the present invention includes a shaft S for a golf club made of carbon fiber reinforced plastic and a base end portion of the shaft S. It is composed of a grip G made of rubber and a head portion H fixed to the tip portion of the shaft S. As shown in FIG.

In the golf swing training machine 10 of the present embodiment, the head portion H includes a connecting portion 1 fixed to the tip portion of the shaft S, a projecting portion 2 extending from the connecting portion 1, and along the projecting portion 2 A substantially cylindrical metal weight 3 mounted on the projecting portion 2 in a slidable state, six magnets 4 attracting and holding the weight 3 toward the shaft S, and the projection. A retaining portion 5 formed at the tip of the portion 2 to prevent the weight 3 from slipping out of the protruding portion 2, and a substantially cylindrical shape so as to partially cover the outer peripheral surface of the weight 3. , a dial member 6 made of synthetic resin, and the like, which is rotatably mounted on the protrusion 2 .

Here, the protruding portion 2 includes (1) a male screw portion 2a formed to protrude vertically from the central portion of a flat circular end face 1a on the weight body side of the connecting portion 1; ) A female screw member 2b having a small diameter portion 21, a medium diameter portion 22 and a large diameter portion, which is screwed into the male screw portion 2a.
Therefore, a female screw 21a that screws together with the male screw portion 2a is formed in the small diameter portion 21 of the female screw member 2b on the connecting portion side, and the large diameter portion of the female screw member 2b is the retaining portion 5. constitutes
With the above configuration, as will be described later, the golf swing training machine 10 of the present embodiment can easily assemble the plurality of components in an orderly fashion.

Then, in the golf swing training machine 10 of the present embodiment, when the swing speed exceeds a predetermined value, the attraction of the weight 3 by the magnet 4 is released, and the small diameter portion 21 and the middle portion of the female screw member 2b are released. The weight 3 slides along the diameter portion 22, and the weight 3 collides with the retaining portion 5 to generate an impact sound (operating sound) such as "click". .
The retaining portion 5 is formed in an annular shape with an outer diameter larger than the outer diameter of the weight 3, and a bottomed cylindrical elastic body 5a is fitted so as to cover and protect the outer surface. ing.

In the golf swing training machine 10 of the present embodiment, the connecting portion 1, the projecting portions 2 (2a, 2b), and the retaining portion 5 are made of a non-magnetic metal that does not attract the magnet 4. The body 3 is made of a metal to which the magnet 4 is attracted, eg stainless steel.
For example, the connecting portion 1 is made of a zinc alloy because it has a complicated shape and does not require much strength.
By adopting such a configuration, sufficient strength and suitable weight balance of the head portion H can be obtained, and durability and stable operation can be obtained.

In the golf swing training machine 10 of the present embodiment, the weight body 3 has a flange portion formed at the connecting portion side end portion of the through hole 3 a constituting the inner peripheral surface thereof so as to reduce the diameter of the through hole 3 a. 3b. The connecting portion side end surface of the weight 3 on which the flange portion 3b is formed is the magnet side end surface, and is the portion that is attracted or attracted by the magnet 4. As shown in FIG.
Further, the weight 3 is partially exposed outside the protrusion 2 (especially, a portion near the retainer 5) when the protrusion 2 is inserted through the through hole 3a. mounted and held.
In addition, a coil spring 7 for urging the weight 3 toward the connecting portion 1 is connected to the inner peripheral surface of the weight 3 (the portion of the through hole 3a excluding the flange portion 3b) and the small diameter portion of the female screw member 2b. It is arranged to be housed in the space formed between the outer surface of 21 .
Therefore, in the golf swing training machine 10 of the present embodiment, the weight 3 separated from the magnet 4 can be quickly returned to the connecting portion 1 side (magnet side).

In the golf swing training machine 10 of the present embodiment, the connecting portion 1 is bent so that the protruding portion 2 faces the horizontal direction at address during swing practice. The body 3 is exteriorly slidably movable in a direction away from the extension of the shaft S.
Therefore, in the golf swing training machine 10 of the present embodiment, the return (rotation) of the head portion H can be felt in the same manner as in an actual golf club, and the weight 3, which is relatively heavy, produces a large operating noise. can be obtained. .

Next, it is composed of the following annular members (a), (b), and (c) having a through hole to be inserted into the protrusion 2, and is housed inside the dial member 6 to provide the head speed at which the device operates. A structure for finely adjusting the value, and a value of the head speed at which the device operates by changing the position of the dial member 6 little by little, and the operating state of the dial member 6 is a "click, click" operation. Structures for sound clarification are described.
For convenience of explanation, as shown in FIGS. 4 to 8, the connecting portion side is defined as the lower side, and the retaining portion side is defined as the upper side.
In order to realize the above-described structure, in the golf swing training machine 10 of the present embodiment, (a) an outer periphery screwed with a spiral groove 6a formed on the inner peripheral surface of the dial member 6 is provided inside the dial member 6. (a) a magnet holding member 40 for holding a magnet 4 for attracting the magnet-side end face of the weight 3; ) A positioning member 60 having a positioning portion 61 that sequentially engages with the concave and convex portions (concave and convex portions) of an annular gear 6b formed on the inner surface of the connecting portion side end of the dial member 6 as the dial member 6 rotates. and have.

The positioning member 60 is formed of a synthetic resin such as POM (polyacetal) having excellent strength and elasticity in a flat, substantially annular shape. A plate spring portion 62 is provided, and the positioning portion 61 is formed at the tip portion of the plate spring portion 62 so as to protrude outward in a mountain shape.
By bending the three plate spring portions 62 inward at the same time, the three positioning portions 61 simultaneously overcome the convex portion of the annular gear 6b and form the concave portion regardless of which direction the dial member 6 is rotated. It engages in a sequential "tick, click" manner, making it easy to check the operating state of the dial, providing excellent operational feeling, and maintaining the position of the set value.
By employing a plurality of leaf spring portions 62 as described above, it is possible for the user to reliably perceive the operation sound of "click, click".
A flange 63 is formed along the outer periphery of the positioning member 60 on the side of the weight body. downward).
Therefore, the engagement state between the annular gear 6b and the positioning portion 61 can be easily and reliably always stably obtained, and the head speed value set by the dial member 6 at which the device operates can be correctly maintained and the same. can be easily reset to the value of
Furthermore, handling of each component becomes easy even during assembly work.

Further, the positioning member 60 has small projections 64 formed so as to reduce the inner diameter of the central portion thereof at three locations.
On the other hand, the connecting portion 1 has projections 11 which are formed to bulge out at three locations along the base portion of the male screw portion 2a at 120 degrees apart from each other from the weight side end surface 1a.
By fitting the small projection 64 into the lower portion of the space formed between the projections 11, the positioning member 60 is arranged in close contact with the end surface 1a of the connecting portion 1 on the side of the weight body in a non-rotatable state. It is designed to be
Therefore, it is possible to rotate the dial member 6 relative to the connecting portion 1 .

The annular member 30 limits the position within the dial member 6 where the weight 3 can move toward the connecting portion (downward), and changes the position (range) within which the weight 3 can move toward the connecting portion. It is for
That is, the end face (upper end face) of the annular member 30 on the side of the weight body is always the end face (lower end face) on the side of the connecting portion of the weight body 3 except when the apparatus operates during the swing and the weight body 3 is released from the attraction by the magnet 4. ) to prevent the weight 3 and the magnet 4 from directly contacting or colliding with each other.
The annular member 30 is formed in a ring shape as a whole, and a spiral ridge 31 formed on the outer peripheral surface of the annular member 30 is screwed into the spiral groove 6a of the dial member 6 so that the dial member 6 can be rotated. is rotated, the position of the annular member 30 can be changed in the moving direction (vertical direction) of the weight 3 .
Furthermore, the annular member 30 is made of a synthetic resin such as PC (polycarbonate), which has excellent strength and impact resistance even though it is a thin ring, and has an inner diameter that is partially reduced in two steps at three locations. That is, the annular member 30 has a non-circular through hole in the central portion and a recess partially having a bottom 33 on the connecting portion side. It has 32 locations.

The magnet holding member 40 is made of synthetic resin such as POM, which has excellent strength and impact resistance, and is formed in a substantially annular shape. They are engaged from above so as to be slidable only in the moving direction of the weight 3 .
That is, the magnet holding member 40 is fitted into a non-cylindrical recess 32 formed in the annular member 30 from the weight body side.
Furthermore, the magnet holding member 40 abuts against the bottom 33 of the recess 32 and is locked by the annular member 30 so as not to slip out toward the connecting portion.
When the magnet holding member 40 is in contact with the bottom 33 of the recess 32 of the annular member 30 as described above, the depth to which the end surface of the magnet holding member 40 on the side of the weight sinks into the recess is shown in FIG. The distance tL shown in (A) is about 2 mm in the embodiment as an example.

The magnet holding member 40 fixes and protects the plurality of small magnets 4 at a fixed position, and enables the magnets 4 to be separated from the magnets 4 attracted to the weight body 3 . There are formed six magnet holding holes 41 into which the small-diameter portion of the two-stage columnar magnet 4 having a convex cross section can be fitted from below.
The magnet holding hole 41 is formed in such a size that the end face (upper end face) of the magnet 4 on the weight body side is substantially flush with the end face of the magnet holding member 40 on the weight body side.
Here, by preventing the upper end face of each magnet 4 from protruding upward from the upper end face of the magnet holding member 40, the weight 3 is prevented from directly colliding with the magnet 4, and the neodymium magnet 4 which is easily broken is prevented. Even if it is, the damage can be prevented.
In addition, since the magnet 4 is covered with the resin-made magnet holding member 40 or the like, it is possible to prevent adverse effects on other properties that are weak in magnetic force.

Furthermore, the inner diameter of the through hole formed in the central portion of the magnet holding member 40 is smaller than the outer diameter of the small diameter portion 21 of the female screw member 2b and larger than the outer diameter of the male screw portion 2a. is set.
Therefore, when the male threaded portion 2a is screwed into the female thread 21a of the female threaded member 2b, the upper end face of the magnet holding member 40 abuts the end face (lower end face) of the small diameter portion 21 on the side of the connecting portion. to be held down.
That is, the position of the magnet holding member 40 in the moving direction (vertical direction) of the weight 3 is always fixed by the small diameter portion 21 functioning as the "enlarged diameter portion formed in the projecting portion 2". It is obtained by pressing against the end face of the weight body of 40 .
Three legs 42 are protruding from the end surface of the magnet holding member 40 on the connecting portion side along the through hole in the central portion at 120 degrees apart from each other. By fitting into the upper part of the space thus formed, the magnet holding member 40 is reliably rendered unrotatable.

As described above, when the position of the magnet holding member 40 in the direction of movement of the weight 3 is always fixed and the dial member 6 is rotated, the position of the annular member 30 in the direction of movement of the weight 3 is fixed. By making the position variable, the distance tL and the distance tH between the magnet 4 and the weight 3 can be changed as shown in FIGS. 9(A) and 9(B).

Here, when the head speed at which the device operates is desired to be set to the lowest speed, the dial member 6 is rotated to separate the magnet 4 and the weight 3 so that the longest distance tL can be obtained before operation. (See FIG. 10).
In this set state, the top surface of the bottom 33 of the annular member 30 abuts the bottom surface of the magnet holding member 40, so further rotation of the dial member 6 is disabled.

Conversely, when it is desired to set the head speed at which the device operates to the highest speed, the dial member 6 is rotated in the opposite direction to bring the magnet 4 and the weight 3 closer to each other, and the shortest distance tH is set before operation. make it available.
In this setting state, the connecting portion side end surface (lower end surface) of the annular member 30 abuts the weight body side end surface (upper end surface) of the positioning member 60, so that the dial member 6 cannot be further rotated.
Further, even in this setting state, the upper end surface of the magnet 4 does not directly collide with the weight 3, so that damage to the magnet 4 can be prevented.
The difference between the distance tL and the distance tH is, for example, about a little less than 2 mm.

Next, a method for manufacturing the golf swing training machine 10 described above will be described.
The shaft S and the head portion H can be easily fixed by a conventional technique such as inserting the tip of the shaft S into the shaft insertion hole 1b formed in the connecting portion 1 and bonding and fixing them.
A triangular index 1c is provided on the upper surface of the connecting portion 1 corresponding to the extension of the shaft insertion hole 1b (see FIG. 11(A)).
Further, fixing of the elastic body 5a to the retainer 5 can be easily achieved by a conventional technique using an adhesive.
Then, the work of assembling each part constituting the head portion H of the golf swing training machine 10 of the present invention can be performed by the following procedure.

First, the positioning member 60 is inserted into the lower end portion of the dial member 6 from above, and the concave portion of the annular gear 6b and the positioning portion 61 are engaged.
Next, by screwing the ridge 31 of the annular member 30 into the helical groove 6 a of the dial member 6 , the annular member 30 is moved from the upper part of the dial member 6 to the lower part of the dial member 6 to the upper side of the positioning member 60 . It arrange|positions so that the said annular member 30 may contact|connect.
Further, the magnet holding member 40 with the magnet 4 fitted in the magnet holding hole 41 is arranged inside the dial member 6. This work involves, as shown in FIG. A magnet holding member 40 is placed on the end surface (the lower end surface of the flange portion 3b: the upper surface in FIG. 3), and the magnet 4 is attached to each magnet holding hole 41 so as to be attracted to the end surface of the weight body 3 on the magnet side. It's good to put it in. This state is a state as shown in FIG. 9(D).

The weight 3, the magnet 4, and the holding member 40 in the state shown in FIG. inset.
Each component assembled as described above is assembled to the connecting portion 1 . In this case, the small protrusions 64 of the positioning member 60 are inserted between the protrusions 11 formed on the connecting portion 1 .
Next, the coil spring 7 is put inside the weight 3, the small diameter portion 21 and the medium diameter portion 22 of the female screw member 2b are put inside the weight 3, and the female screw 21a is connected to the male screw portion 2a of the connecting portion 1. screw together.
When the male threaded portion 2a and the female threaded portion 21a are screwed together, an adhesive (acrylic resin, epoxy resin, or the like) is used to firmly fix them, thereby preventing disassembly by the user and preventing the weight 3 from falling out. can be prevented.

As described above, the state in which the annular member 30 is arranged in contact with the upper side of the positioning member 60 is the state in which the weight 3 and the magnet 4 are closest to each other. The head speed at which is activated is the highest design condition.
Therefore, since this dial position corresponds to the fastest head speed value at which the apparatus operates, a seal 8 having a scale corresponding to the position of the index 1c in this state is attached to the outer peripheral surface of the dial member 6. paste.
By adopting such a procedure, it is possible to easily match the value of the head speed at which the apparatus operates with the value of the scale.
The outer periphery of the upper portion of the dial member 6 is slightly enlarged in diameter, and a plurality of linear projections 6c directed vertically are formed in the enlarged diameter portion to facilitate the rotation operation of the dial member 6.

In the golf swing training machine 10 configured as described above, the position of the magnet holding member 40 in the moving direction of the weight 3 is always fixed, and by rotating the dial member 6, the weight is The position of the annular member 30 in the movement direction of 3 can be changed, and the distance between the magnet 4 and the weight 3 can be easily changed.
Therefore, the value of the head speed at which the device operates can be easily changed, and since the positioning member 60 is used, resetting to an arbitrary value can be easily and reliably performed.
Furthermore, since there is no intervening member in the space between the magnet 4 and the weight 3, the distance between the two can be made close, so a small magnet 4 can be used, and compactness and low cost can be realized. Alternatively, since the annular member 30 can prevent the weight 3 from directly colliding with the magnet 4, a golf swing training machine with excellent durability can be provided.

Further, in the golf swing training machine 10 in which the weight 3 is mounted so as to be exposed to the outside as described above, the collision sound between the weight 3 and the retaining portion 5 can be increased, and the weight 3 By increasing , the impact and impact sound at the time of collision can be increased, and the moment of impact when the head speed exceeds a certain value can be easily recognized.

As described above, in the golf swing training machine 10 having the coil spring 7, even if the weight 3 is released from the attraction of the magnet 4 during the swing, the weight 3 can be returned to the connecting portion side immediately after the swing.
Here, when the head speed of a general adult male golfer swinging the golf swing training machine 10 is about 35 m/s, the scale corresponding to the center of the range that can be adjusted by the dial member 6 is about 35 m/s. Then, the weight of the weight 3, the magnetic force of the magnet 4, the number of the magnets 4, the strength of the coil spring 7, the distance between the weight 3 and the magnet 4, etc. should be set so that the device operates at the head speed.

In the golf swing training machine 10 of the present embodiment, the length of the shaft S and the weight of the head portion H are set to be approximately the same as the swing balance obtained by an actual wood golf club or iron golf club. can do.
Further, the distance over which the weight 3 can slide is preferably within a range of 5 to 20 mm. By changing the length, the weight of the weight 3, the length of the protrusion 2, the angle formed by the extension of the shaft S and the protrusion 2, etc., it is possible to appropriately adjust.
By adopting the configuration as described above, in the golf swing training machine 10 of the present embodiment, the amount of movement of the center of gravity is small, and the golf swing can be practiced with a feeling similar to that of swinging an actual golf club. can.

Furthermore, the golf swing training machine of the present invention is not limited to the above-described embodiments, and the types of shafts and grips may be changed, and the structures, materials, shapes, and It may be embodied and implemented in golf swing training machines having different dimensions, angles, installation positions, numbers, weights, and the like.

INDUSTRIAL APPLICABILITY The present invention can be industrially suitably used as a golf swing training machine that can easily change and reset the value of the head speed at which the device operates during swing practice, and is excellent in operability, durability, etc. .

REFERENCE SIGNS LIST 10 golf swing training machine 1 connecting portion 1a weight side end surface 1b shaft insertion hole 1c index 11 projection 2 projecting portion (male screw portion 2a + female screw member 2b)
2a male threaded portion 2b female threaded member 21 small diameter portion (enlarged diameter portion)
21a female screw 22 medium diameter portion 3 weight 3a through hole 3b flange portion 4 magnet (neodymium magnet etc.)
5 retaining part 5a elastic body 6 dial member 6a spiral groove 6b annular gear 6c linear projection 7 coil spring 8 seal 30 annular member 31 ridge 32 non-cylindrical recess 33 bottom 40 magnet holding member 41 magnet holding hole 42 Leg 60 Positioning member 61 Positioning part 62 Leaf spring part 63 Flange 64 Small protrusion G Grip H Head part S Shaft

Claims (7)

a connecting portion fixed to the tip of the shaft;
a projecting portion extending from the connecting portion;
a weight mounted on the projecting portion in a slidable state along the projecting portion;
a magnet that attracts and holds the weight toward the connecting portion;
a retaining portion formed at the tip of the projecting portion to prevent the weight from coming out of the projecting portion;
When the swing speed exceeds a predetermined value, the weight body is released from the attraction of the weight body by the magnet, and the weight body moves to the retaining part. A golf swing training machine configured to generate a collision sound between
a dial member rotatably mounted on the protrusion;
an annular member screwed to the inner peripheral surface of the dial member and in contact with the magnet-side end surface of the weight;
a magnet holding member holding a magnet for attracting the magnet-side end surface of the weight;
with
The magnet holding member is arranged in a recess or a through hole formed in the annular member, and the position of the magnet holding member in the moving direction of the weight is always fixed,
A golf club characterized in that when the dial member is rotated, the distance between the magnet and the weight can be changed by making the position of the annular member variable in the moving direction of the weight. swing trainer. a connecting portion fixed to the tip of the shaft;
a projecting portion extending from the connecting portion;
a weight mounted on the projecting portion in a slidable state along the projecting portion;
a magnet that attracts and holds the weight toward the connecting portion;
a retaining portion formed at the tip of the projecting portion to prevent the weight from coming out of the projecting portion;
When the swing speed exceeds a predetermined value, the weight body is released from the attraction of the weight body by the magnet, and the weight body moves to the retaining part. A golf swing training machine configured to generate a collision sound between
a dial member rotatably mounted on the protrusion;
an annular member screwed to the inner peripheral surface of the dial member and in contact with the magnet-side end surface of the weight;
a positioning member having a positioning portion that sequentially engages with projections and depressions of an annular gear formed on the inner surface of the connecting portion side end of the dial member as the dial member rotates;
a magnet holding member holding a magnet for attracting the magnet-side end surface of the weight;
with
By always fixing the position of the magnet holding member in the moving direction of the weight and by making the position of the annular member variable in the moving direction of the weight when the dial member is rotated, the magnet and the weight body can be changed in distance. Constant fixation of the position of the magnet holding member in the movement direction of the weight is obtained by pressing the enlarged diameter portion formed in the projecting portion against the end surface of the magnet holding member on the side of the weight,
When the dial member is rotated, the change in the position of the annular member in the moving direction of the weight is achieved by engaging the magnet holding member so that the annular member can slide only in the moving direction of the weight. 3. A golf swing practice according to claim 1 or 2, which is obtained by being arranged in a mating state so that the ring member does not rotate together with the dial member. machine. According to any one of claims 1 to 3, the magnet holding member is made of a synthetic resin, and is capable of reducing impact caused by collision between an end surface of the magnet and an end surface of the weight body on the side of the magnet. The golf swing training machine according to any one of items. The magnet holding member is fitted into a non-cylindrical recess formed in the annular member from the side of the weight body, and is locked by the annular member so as not to come off toward the connecting portion. 5. The golf swing training machine according to any one of claims 1 to 4, characterized in that it is a golf swing training machine. The positioning member is made of synthetic resin, is formed in an annular shape, has a leaf spring portion that supports the positioning portion on an outer peripheral portion, and is non-rotatably fixed inside the dial member. The golf swing training machine according to claim 2, characterized by: The golf swing training machine according to any one of claims 1 to 6, wherein the dial member has a seal attached to the outer peripheral surface thereof on which a scale indicating a swing speed value at which the device operates is written. .

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