JPH0429630Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a swing training device, particularly to a device for practicing club swing in golf, bat swing in baseball, etc.

[Prior art]

When playing golf or baseball, it is extremely important to hit the ball farther and in an accurate direction.

In order to hit the ball farther and in an accurate direction, it goes without saying that the player's physical strength must be trained to match this, but it is also necessary to have the proper swing. It is also important to intensively train and strengthen the muscles in the parts necessary for the swing by gaining strength, and to eliminate the harmful effects of erroneously strengthening muscles other than those in the parts necessary for the swing.

In order to achieve this purpose,
Training devices and practice swing practice devices for swing practice have been developed, such as those described in Japanese Utility Model Publication No. 45633 and Japanese Utility Model Application Publication No. 182085/1985. All of the above-mentioned training tools are somewhat effective, but in each case, the wing part that receives wind resistance has a fixed structure, so everyone from beginners to experts can use the same equipment. It is inconvenient to practice swings while experiencing wind pressure resistance, and it is not possible to individually respond to the physique and physical strength of the person practicing.

In addition, in these training devices, the wing surface that receives wind resistance is fixedly composed of a plate or other hard material, so the resistance (load) received during the swing is greatest at the beginning of the swing, and is greatest at the time of impact or at the beginning of the swing. During follow-through, there is a tendency for the load to gradually decrease due to inertia and the outflow effect of the wind along the plate surface, resulting in a result that differs from the load balance at impact, which is the most important factor in an actual swing. In addition to the disadvantages, the muscles used during swing practice are different from the muscles used in the actual swing, so it does not lead to strengthening of the muscles in the correct area. Of course, it also had the drawback of not being able to acquire the correct swing form.

Furthermore, in the case of the above-mentioned known device, the training device itself adopts a structure in which the wings are fixed to the shaft, making it difficult to fold and store the entire thing compactly, and even if it can be separated, the wing portion Although it was only separated from the shaft part, it still had the disadvantage of being bulky as a whole, making it inconvenient for carrying.

[Purpose of invention]

In view of the above-mentioned circumstances, the present invention is intended to address these issues, and provides a swing training tool that can strengthen the muscles in the correct areas, as well as generate a correct swing and appropriate swing load. This is what I am trying to do.

Another purpose of this invention is that it is a swing training tool that can be folded into a compact size when not in use, making it convenient to carry, and that allows the wing surface to be replaced and load adjusted as necessary. This is what we are trying to provide.

[Key points of the idea]

In order to achieve the above-mentioned purpose, the present invention combines four skeletons arranged in an umbrella-like manner at the tip of a shaft body of an appropriate length so that they can be folded freely to form a planar cross shape. , a wing surface is formed on the skeleton by stretching a fabric or the like on a front fan-shaped or semicircular arc-shaped portion surrounded by the skeleton and the shaft when each skeleton portion is in a curved state. These wing surfaces are characterized in that they can be opened using fasteners or other opening/closing devices when the skeleton is extended.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The swing training tool of the present invention consists of a shaft body 1
and four blade surfaces 2...2 attached to the shaft body 1 so as to be able to open and close freely.

The shaft 1 described above has a thickness suitable for a swing depending on the purpose. For example, if the purpose is a practice tool for golf swings, the shaft 1 etc. made of a relatively thin metal cylinder as a whole is used, and If the application is a baseball swing practice tool, use one in which the entire shaft 1, or at least the grip portion that constitutes a part of the shaft, is formed into a relatively thick rod-shaped body similar to a baseball bat. ing.

The wing surface 2 includes a fixed potter's wheel 21, a sliding potter's wheel 22, and four skeletons 23, which are attached so as to be freely curved so that their ends span these two potter's wheels...23
and fabrics 24...24 stretched over the skeletons 23...23 so as to be able to open and close freely.

Both the fixed potter's wheel 21 and the sliding potter's wheel 22 have the same function as the "potter's wheel" used for umbrellas, and are made of fittings carved into the circumference of the cylindrical bodies that make up the upper and lower potter's wheels. Grooves 25 and 26
Both ends of the skeleton 23 are fitted and pivotally connected to the respective ends.

Note that the fitting grooves 25 and 26 are formed with support walls 25' and 26' that support the back side of both ends of the skeleton 23 (the back side near the attachment part), and these support walls allow the curved shape of the skeleton 23 to be adjusted. It is possible to maintain the desired shape without deforming even when swinging.

The fixed wheel 21 is fixed to the tip of the shaft body 1 using a fixing device such as a screw 4, and by removing the fixing device, the entire wing surface 2 can be separated from the shaft body 1. I have to.

The sliding potter's wheel 22 is attached to the shaft body 1 so as to be able to slide freely, and when the skeleton 23 is contracted (that is, when folded), the stopper 12 is attached to the shaft body 1 so that it can freely rise and fall. The lower surface is supported by the In addition,
The mechanism of this stopper 12 is well known in the field of umbrellas, so a detailed explanation will be omitted.

For the skeleton 23, it is preferable to use a wire material having a small outer diameter and excellent strength, such as a metal wire such as a piano wire, or a thin diameter synthetic resin wire material added with an appropriate reinforcing material. In addition to the case where the entire skeleton has the same wire diameter, it is also possible to form a part of the skeleton to be thinner than the other part so that the part becomes a curved part.

The shape of the wing surface 2 surrounded by the skeleton 23 is not limited to the case where the front shape of the two wing surfaces 2, 2 combined is a military shape (or heart shape) as exemplified in the embodiment, and the shape of the wing surface 2 in the lateral direction. It is possible to freely adopt a horizontally oblong circular shape in which the upper and lower central portions are completely symmetrical, or a shape in which the lower half is bulged, which is the complete opposite of the military type. However, the shape of the wing surface 2 described above is such that the larger the bulge in the direction near the tip of the shaft body 1, the greater the resistance during swing, so experts may choose a wing surface 2 with a tapered shape. In addition, it is desirable for beginners to use one with a wing surface 2 that is thick at the hand.

The fabric 24 stretched over the skeleton 23 is made of a relatively flexible material, and its shape is cut so that it can conform to the curved state of the skeleton 23. The bag-shaped portion 27 formed on the outer peripheral edge of the fabric 24 is designed to allow the skeleton 23 to be inserted therethrough, and an open wire is provided at a position corresponding to the central portion when unfolded so as not to interfere with the straightening of the skeleton 23. 28 is formed.

The aforementioned opening line 28 portion is designed to maintain the closed state of the fabric 24 surface during use by attaching a closing device 3 such as a slide fastener as illustrated in the embodiment. As the tool 3, in addition to using a slide fastener as exemplified in the embodiment, a velvet fastener such as Magic Tape (registered trademark) may also be used. In addition, the shape of the fabric 24 may be a shape that exactly matches the curved shape of the skeleton 23, or may cause some deflection of the entire wing surface when the wing surface formed by the fabric 24 receives wind pressure. ,
It is also possible to form flexures or pleats on the side along the shaft 1 so that wind can escape along these flexures.

〔how to use〕

The present invention configured as described above is used in the following manner.

When in use, slide the sliding potter's wheel 22 in the stored state illustrated by the solid line in FIG. 1 upwards as if opening an umbrella, raise it to the position shown by the two-dot chain line in FIG. If the lower part of the sliding wheel 22 is supported and locked by the stopper 12 in the same manner,
The wing surface 2 to be subjected to wind pressure by the skeleton 23 curved by the rise of the sliding wheel 22...23
...2 is formed. After the skeleton 23 forming the wing surface 2 is curved, the open line 28 portion of the fabric 24 stretched thereon is connected to the closure tool 3.
By closing the airfoil, the wing surface 2, which is fully subjected to wind pressure, can be assembled and ready for use.

In addition, when storing after use, first the skeleton 23
By releasing the closing tool 3 formed at the center of the fabric 24 stretched over the section, the shape-retaining force of the fabric 24 on the skeleton 23 is released. The wing surface 2 with the fabric 24 in an open state by the above operation
In this case, the stretched surface of the fabric 24 becomes ventilable, but
In this state, the engagement between the sliding wheel 22 and the stopper 12 is released in the same manner as closing the umbrella, and the sliding wheel 2
2 is slid downward along the shaft body 1, the wing surface 2 can be folded from the state shown by the two-dot chain line to the state shown by the solid line in FIG. 1, and can be stored extremely compactly. can.

[Effect of idea]

The present invention configured as described above, like the known swing training equipment, allows you to properly strengthen the muscles in the necessary parts corresponding to the type of sport you are playing by swinging according to your purpose. can be achieved.

In addition, in the case of a conventionally known wing surface made of a hard material such as a plate, maximum wind pressure is applied to the plate surface at the start of the swing, and the wind pressure that collides with this plate surface is absorbed by the swing. However, according to the present invention, the wing surface 2 is connected to the frame 23 and the fabric 24 stretched over the frame. Since it is constructed by a combination of the following, the wind that collides with the wing surface at the beginning of the swing does not quickly escape along this board surface, so that the swing can be performed while always feeling the appropriate residual pressure. It has an excellent feature of being able to practice swinging while always receiving appropriate resistance from the start of the swing to the end of the swing.

In addition, as described in detail in the section above, the training tool of the present invention can be stored compactly because the wing surfaces 2...2 can be folded and stored. It is very convenient and, for example, in the case of a golf swing practice tool, it has the advantage that it can be stored in a kayak bag in the same way as an umbrella, allowing effective practice in a short period of time just before the start of play.

The wing surface 2...2 is configured so that it can be easily removed by opening the fixing screw on the fixed potter's wheel 21, so the shape and size of the wing surface 2 can be adjusted according to the level of skill. It can be changed and replaced as appropriate.

It has a simple structure and can be provided at a low price.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a front view showing the skeleton in the open and closed state, Fig. 2 is a perspective view showing the wing surface in use, and Fig. 3 is a part showing the main parts. FIG. 4 is a partially cut-away and enlarged front view showing only the wing surface. 1... Shaft body, 12... Stopper, 2
... Wing surface, 21 ... Fixed potter's wheel, 22 ... Sliding potter's wheel, 23 ... Skeleton, 24 ... Fabric, 25, 26
...Fitting groove, 25', 26'...Supporting wall, 28...
Open line, 3...closing device.

Claims (1)

[Scope of claims for utility model registration] (1) At the tip of the shaft body of an appropriate length,
Four skeletons assembled in an umbrella-like manner are assembled in a planar cross shape so that they can be folded freely, and when each skeleton part is in a curved state, there are A wing surface is formed by stretching a fabric or the like on the front fan-shaped or semicircular arc-shaped part surrounded by the
These wing pieces are constructed so that they can be opened and closed using fasteners or other closing devices when the skeleton is extended. (2) The swing training tool according to claim 1, wherein the skeleton has both upper and lower ends pivotally connected to a fixed potter's wheel and a sliding potter's wheel attached to the shaft body. (3) The swing training tool according to claim 1 of the utility model registration claim, wherein the skeleton including the fixed potter's wheel and the sliding potter's wheel can be freely attached and detached from the shaft body by tightening and releasing screws and other fixing devices. . (4) The swing training device according to claim 1, wherein the fabric stretched over the skeleton is stretched with an appropriate amount of slack relative to the skeleton. (5) The swing training tool according to claim 1, wherein the shaft body is constituted by a metal tube or other small diameter body. (6) The swing training tool according to claim 1, wherein at least the grip portion of the shaft body is a rod-shaped body similar to a baseball bat.