KR100708406B1 - Badminton exercise device - Google Patents

Abstract

The present invention relates to a badminton training apparatus.

The present invention provides a badminton training apparatus configured to have a shuttlecock drawing unit installed in a frame and a shuttlecock supply unit installed at an upper portion of the shuttlecock drawing unit, wherein the shuttlecock drawing unit has one side of a first chain on a driving sprocket wheel of a first motor fixed to a support plate. Is connected and the other side of the first chain is connected to the driven sprocket wheel of the drive shaft fixed to the backing plate as a bearing, the pull guide cam is coupled to the drive shaft fitted with the driven sprocket wheel, the upper portion of the pull guide cam The shaft fixing part is inserted into the supporting plate to be positioned so that the shaft penetrates, and one side of the shaft is coupled to the pull rod coupled to the roller, and the pull rod is formed to have a fixed protrusion, and one side of the pull spring is hooked. The other side of the spring is configured to be caught by the tension adjusting rod, A handle clamp is coupled to the other side, and a portion of the outer circumferential surface of the roller is configured to contact the pull guide cam.

Frame, Shuttlecock Drawing, Shuttlecock Supply, Badminton, Handle Clamp

Description

Badminton exercise device

1 is a front view and a side view showing a badminton practice apparatus according to the present invention

Figure 2 is a perspective view of the shuttlecock drawing portion constituting the badminton training apparatus according to the present invention.

Figure 3 is a perspective view of the main portion of the drive shaft coupled to the motor which is a shuttlecock drawing part constituting the badminton practice apparatus according to the present invention.

Figure 4 is an enlarged perspective view of the bottom bottom portion of the shuttlecock drawing portion constituting the badminton practice apparatus according to the present invention.

Figure 5 is a side view of the eccentric guide cam installed in the badminton practice apparatus according to the present invention.

Figure 6a, 6b is an operating state of the shuttlecock drawing portion constituting the badminton practice apparatus according to the present invention.

Figure 7a, 7b is an operating state of the shuttlecock drawing portion constituting the badminton practice apparatus according to the present invention.

Figure 8 is an enlarged perspective view of the bottom of the shuttle cock supply unit constituting the badminton training apparatus according to the present invention.

<Brief description of symbols for the main parts of the drawings>

100: shuttlecock drawing 110: support plate

120: first motor 121: drive sprocket wheel

122: first chain 130: drive shaft

131: bearing 132: driven sprocket wheel

140: pull guide cam 150: high government

151: shaft 152: pull rod

153: Roller 154: Fixed protrusion

155: pull spring 156: tension adjustment rod

157: grip clamp 200: shuttlecock supply

500: frame

The present invention relates to a badminton practice apparatus, in particular, by allowing the shuttle cock to be sequentially dropped from the shuttle cock supply unit installed on the upper portion of the frame through the shuttle cock drawing unit installed on the support plate to repeatedly send the shuttle cock up and down, left and right, It is designed to practice correcting the batting posture, timing, RBI, and steps without a lesson coach.

In general, badminton is one-to-one singles and two-to-two doubles, with the net being placed in the center of the court like tennis, competing for scores by hitting a shuttlecock with a racket and not falling on the floor. This is a sport that anyone can enjoy easily, regardless of cows.

Such badminton can be simply enjoyed in a narrow space indoors and outdoors using only a racket and shuttlecock, but to play badminton must have at least two people who can hit the shuttlecock.

On the other hand, beginners who started badminton for the first time had a problem of lowering the interest and effect as much as having to practice swing without shuttlecock while correcting posture through a separate coach or textbook.

As a solution to this problem, the badminton practice apparatus of Korean Utility Model Registration No. 20-306604 (2003.2.25) has been proposed, and the proposed practice apparatus is lifted up sequentially from the shuttlecock mount equipped with the shuttlecock. By repeating the swinging of the shuttlecock with a racket, it is possible to correct posture, timing and steps while practicing alone, or the shuttlecock is not drawn in any direction from the front to the rear, but in one direction from the bottom to the top. As it floats up, there are problems such as hitting and stepping on the shuttlecock flying from any direction, including clear, smash, jump smash, push, drop, hairpin, and drive, or not able to practice.

The present invention has been created to solve this problem by allowing the shuttle cock to be sequentially dropped from the shuttle cock supply unit installed on the upper portion of the frame through the shuttle cock drawing unit installed on the support plate to repeatedly send the shuttle cock up and down, left and right. The purpose is to provide a badminton practice device that can be corrected by practicing the batting posture, timing, RBI, step, etc. without a separate lesson coach.

In the badminton training apparatus configured to provide a shuttlecock drawing unit 100 is installed on the frame 500 and the shuttlecock supply unit 200 is installed on the shuttlecock drawing unit 100 to achieve the above object, The shuttlecock drawing unit 100 is connected to one side of the first chain 122 to the driving sprocket wheel 121 of the first motor 120 fixed to the support plate 110, the other side of the first chain 122 The guide guide cam 140 is connected to the drive sprocket wheel 132 of the drive shaft 130 fixed to the support plate 110 by the bearing 131, and the drive sprocket 130 is fitted with the driven sprocket wheel 132. Being coupled, the shaft fixing part 150 is inserted into the support plate 110, the upper portion of the pull guide cam 140 is inserted so that the shaft 151 penetrates, and the roller (1) on one side of the shaft 151 153 is coupled to the pull rod 152 is coupled, the pull rod 152 is high One side of the pulling spring 155 is formed by forming the protrusion 154 and the other side of the pulling spring 155 is configured to be caught by the tension adjusting rod 156, and the handle clamp 157 is formed on the other side of the shaft 151. ) Is coupled, and a portion of the outer circumferential surface of the roller 153 is configured to contact the pull guide cam 140.

In addition, the stop rod 160 is coupled to the shaft 151 between the handle clamp 157, the lower portion of the stop rod 160 is inserted into the fixing groove 161 formed as a lower portion of the shaft fixing portion 150 The upper end of the stop rod 160 is coupled to abut the pressure rod 164 coupled to the hinge piece 163 formed as an upper part of the shaft fixing part 150, and the stop rod The other end of the pressure rod 164 in contact with the upper portion of the 160 is coupled to the extension panel 165 extending to the shaft fixing part 150 by a ball joint 166, the ball joint 166 is an extension The tension spring 168 is coupled between the panel 165 and the spring fixing protrusion 167 formed on the top of the shaft fixing part 150.

In addition, the support plate 110 is coupled to the pivoting hinge 310 installed above the transfer frame 300, the transfer frame 300 by a second chain 381 connected to the second motor 380. Is installed to be transported up and down along the screw shaft 312 is rotated, the rotating hinge 310 is a hinge member 320 having a curved shape between the hinge piece 313 fixed to the transfer frame 300 Is coupled to the hinge 321 and the support ring 322, the roller 321 is coupled to the upper portion of the hinge member 320 is coupled by welding, the center shaft 330 in the center of the hinge member 320 The support plate 110 is rotatably coupled to the sleeve 340 by installing a) and both ends of the first rotating elastic spring 350 are fixed between the hinge member 320 and the support plate 110, and Both ends of the second pivotal elastic spring 360 are fixed between the hinge member 320 and the transfer frame 300, and the transfer frame 3 The cylinder 370 is installed at the lower portion of 00, and the rod 371 of the cylinder 370 is configured to be coupled to the lower portion of the support plate 110.

In addition, the left and right transfer cam 170 is coupled between the driven sprocket wheel 132 and the pull guide cam 140 and the left and right transfer cam 170 is by a stop piece 180 coupled to the support plate 110. It is configured to selectively abut, characterized in that the left and right conveying cam 170 is in contact with the left and right conveying shaft 182 coupled to the stop piece 180 is configured to reciprocate the left and right the support plate 110.

In addition, the shuttle cock supply unit 200 includes a rotary body 220 having a plurality of unit storage tubes 221 coupled to the upper portion of the supply frame 210 coupled to the upper portion of the support plate 110 by the third motor 230. Is rotatably installed, the lead portion 240 is installed in the lower portion of the unit storage tube 221, the lead portion 240 is provided with an elastic arm 242 at both ends of each of the rotating shaft 241 The gear 243 is coupled to the rotating shaft 241, and the positioning rod 244 is coupled between the elastic arms 242, and the positioning rod 244 is coupled to the rotating shaft 241. Movement is repeated by the stopper 250, and the gear 243 is bevel gear 260 coupled to both ends of the drive shaft 130 and the vertical shaft 250 exposed to one side of the pull guide cam 140. Is rotated, the vertical axis 250 is divided into two to form a recessed portion 251 and the iron portion 252 in the upper and lower ends of each separated W is to provide a badminton exercise device characterized in that the screw is fixed to the 253 part becomes bonded are bonded to each other to achieve that purpose.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The badminton training apparatus according to the present invention is configured such that the shuttlecock drawing unit 100 and the shuttlecock supply unit 200 are installed in the frame 500 as shown in FIGS. 1 to 8.

Here, the shuttle cock drawing unit 100 is to hit the shuttle cock 600, which is dropped one by one from the shuttle cock supply unit 200 with a racket to be drawn toward the front to change the direction of the support plate 110 through the front upper and lower And so that the shuttle cock 600 can be drawn in all directions in the left and right sides is configured to provide the same effect as the actual practice.

To this end, the shuttle cock drawing unit 100 is provided with a first motor 120 to be selectively applied to the rear of the support plate 110 having a predetermined width, the first motor 120 of the The drive sprocket wheel 121 is configured to be coupled to the motor shaft.

In addition, the front of the first motor 120, the drive shaft 130 is rotatably coupled by a bearing 131, the driven sprocket wheel 132 is coupled to one side of the drive shaft 130, The first chain 122 is connected between the driving sprocket wheel 121 and the driven sprocket wheel 132 and is configured to prevent the first chain 122 from being loosened by the tension adjusting pusher 123. It is.

In addition, the other side of the drive shaft 130 is coupled to the driven sprocket wheel 132 is configured to be coupled to the pull guide cam 140 having a S-shape unfolded and the support plate on which the upper portion of the pull guide cam 140 is located The shaft fixing part 150 is installed in the 110 and the shaft 151 is configured to be rotatable through.

In addition, a pull rod 152 having a roller 153 coupled to a lower end thereof is coupled to a portion at which the pull guide cam 140, which is one end of the shaft 151, is fixed to the pull rod 152. ) Is formed.

In addition, one side of the pulling spring 155 is hung on the fixing protrusion 154 and the other side of the sugar spring 155 is fixed to the support plate 110 to the upper side of the first motor 120, the tension adjusting rod 156. It is configured to hang). More preferably, the tension adjusting rod 156 is formed to be threaded.

A plurality of handle clamps 157 are coupled to the other side of the shaft 151 so that the racket handle 700 can be fixed, and a part of the outer circumferential surface of the roller 153 abuts against the pull guide cam 140. By being configured to so that the pull rod 152 is reciprocated by the pull guide cam 140, the elastic force is stored and the elastic force is released while the pull spring 155 is pulled as the pull spring 155 is pulled back is restored By this, the shaft 151 can be instantaneously rotated.

6A and 6B, the stop rod 160 is coupled to the shaft 151 between the handle clamps 157, and a lower portion of the stop rod 160 is formed as a lower portion of the shaft fixing portion 150. The upper end of the stop rod 160 is coupled to the hinge piece 163 formed as an upper portion of the shaft fixing part 150, and is configured to be in contact with the top of the louver 162 inserted into the fixing groove 161. The racket is shaken by the reaction force or reaction force generated after hitting the shuttle cock 600 once by pressing the stop rod 160 tightly to the upper end of the louver 162 by being coupled to abut the pressure rod 164. You can prevent it from falling.

The pressing force acting on the stopping rod 160 is coupled to the ball joint 166 to the extension panel 165 extending from the other end of the pressing rod 164 to abut the upper portion of the stopping rod 160. To be generated by the elastic force of the tension spring 168 coupled between the pressing rod 164 coupled to the ball joint 166 and the spring fixing protrusion 167 formed on the top of the shaft fixing portion 150. Consists of.

The support plate 110 is configured to stably support the shuttlecock drawing unit 100 and the shuttlecock supply unit 200 at the top thereof and to move the shuttlecock in any direction in the forward direction by being moved up, down, left and right with respect to the transfer frame 300. It is configured to provide the function.

To this end, the support plate 110 is coupled to the transfer frame 300 as shown in Figures 2 and 4, the transfer frame 300 is a second motor 380 fixed to the lower portion of the frame 500 It is installed to be transported up and down along the screw shaft 312 is rotated by the second chain 381 is connected to the shuttle cock 600 is configured to adjust the height to be bounced forward.

The lower portion of the support plate 110 is coupled to the upper portion of the conveying frame 300 by the pivoting hinge portion 310, and the pivoting hinge portion 310 is fixed to the conveying frame 300, as shown in FIG. The hinge member 320 having a curved shape between the hinge pieces 313 is coupled to the hinge 321, and the support ring 322 to which the roller 321 is coupled to the upper portion of the hinge member 320 is welded. It is configured to be combined with.

In addition, a center shaft 330 is installed at the center of the hinge member 320 so that the support plate 110 is rotatably coupled to the left and right directions about the sleeve 340, and the hinge member 320 The process of being restored after being moved from left to right or right to left in the process of reciprocating the support plate 110 from side to side by fixing both ends of the first pivotal elastic spring 350 between the support plates 110. It is comprised so that it may be rotated easily by the elastic force.

In addition, when both ends of the second pivotal elastic spring 360 are fixed between the hinge member 320 and the transfer frame 300, the support plate 110 is tilted in the front and rear direction about the hinge 321. The support plate 110 is configured to be smoothly restored by the restoring force.

And the cylinder 370 is installed in the lower portion of the transfer frame 300 and the rod 371 of the cylinder 370 is coupled to the lower portion of the support plate 110, the support plate 110 is centered on the hinge 321 In the process of being leaned or lifted to have a predetermined angle, the impact force is alleviated.

On the other hand, the configuration in which the support plate is reciprocated in the left and right direction around the sleeve 340 coupled to the center shaft 330 is shown in Figures 2 and 3, the driven sprocket wheel 132 and the pulling guide The left and right feed cams 170 having the inclination extending in one direction between the cams 140, that is, the hollow pipes are inclinedly cut, are coupled, and the left and right feed cams 170 are coupled to the support plate 110. The left and right feed shafts 182 are selectively abutted by the stop pieces 180.

In addition, the support plate 110 rotates the center shaft 330 as the left and right feed shaft 182 coupled to the stop piece 180 is rotated in contact with the left and right feed cam 170. It will be reciprocated to the center.

The shutter cock supply unit 200 is to be supplied to the upper portion of the shuttle cock drawing unit 100 by sequentially dropping the shuttle cock 600 located at the bottom of the shuttle cock 600, a plurality of sequentially stored shuttle cock 600 of the support plate 110 The lower end of the supply frame 210 is coupled to the upper side, and the rotatable body 220 having a plurality of unit storage tubes 221 coupled to the upper portion of the supply frame 210 is rotatable by the third motor 230. It is configured to be installed.

In addition, a drawing unit 240 is installed below the unit storage tube 221, and the drawing unit 240 is provided with elastic arms 242 at both ends of each of the rotation shafts 241 so that the shuttle cock 600 is provided. It is configured to be easily pushed out of the lower part of the lower part of the lower part of the lower part of the lower part of the lower part of the lower part of the lower part.

In addition, a gear 243 is coupled to the rotation shaft 241, and a positioning rod 244 is coupled between the elastic arms 242 so that the shuttle cock 600 is always in a constant position.

In addition, the positioning rod 244 is repeated by the stopper 250 coupled to the rotating shaft 241, the gear 243 is the drive shaft 130 exposed to one side of the pull guide cam 140 It is configured to be rotated at a constant speed by the bevel gear 260 coupled to both ends of the vertical axis (250).

In addition, the vertical shaft 250 is separated into two, and each of the upper and lower ends of the recessed portion 251 and the convex portion 252 is formed to be coupled to each other and the combined portion is fixed by the screw 253 to rotate the initial rotation axis The shuttlecock 600 falls to the center of the racket by matching the rotation angle of the elastic arm 242 coupled to the 241, that is, the cycle in which the shuttlecock 600 is drawn out and the operation cycle of the shuttlecock drawing unit 100. At the same time, it can bounce forward.

Using the badminton practice device having such a configuration, the shuttlecock dropped from the shuttlecock supply unit bounces forward through the shuttlecock drawing unit as follows.

First, as the driving sprocket wheel 121 of the first motor 120 is rotated and the driven sprocket wheel 132 is connected to the first chain 122, the driving shaft 130 rotates, and the driving shaft ( Pull guide cam 140 is rotated by the rotation of 130.

Next, due to the rotation of the pull guide cam 140, the roller 153 abuts on the surface thereof is rotated, and the pulling rod 152 coupled to the roller 153 is rotated in the direction of the arrow shown in FIG. 6A. As a result, the handle clamp 157 and the stop rod 160 fixed to the other side of the shaft 151 are rotated so that the racket handle 700 coupled to the handle clamp 157 is flipped as shown in FIG. 6B. . At this time, the tension spring 168 connected between the spring fixing protrusion 167 and the pressure rod 164 is in a tensioned state.

At the same time, as the vertical shaft 250 rotates due to the rotation of the bevel gear 260 connected to the drive shaft 130, the elastic arm 242 of the rotating shaft 241 coupled to the top of the supply frame 210 is rotated. After one shuttlecock 600 mounted on the positioning rod 244 is pressed by the elastic arm 242, the restraining force of the positioning rod 244 is released by the stopper 250.

Next, as the restraining force of the positioning rod 244 is released, the elastic arm 242 pulls the shuttle cock 600 downward so as to fall, and pulls the guide when the dropped shuttle cock 600 reaches the top of the racket. As the cam 140 is rotated as shown in FIG. 7B and the restraint force of the pull rod 152 is released, the pull rod 152 is quickly moved in the direction of the arrow of FIG. 7B by the elastic force of the pull spring 155. The handle clamp 157, which is moved and coupled to the shaft 151 shown in FIG. 6B, is moved in the direction of the arrow and bounces forward by hitting the falling shuttlecock 600.

At this time, after the racket fixed to the handle clamp 157 swings once, the stop rod 160 contacts the louver 162 and the impact force decreases, and the tension spring is tried to be flipped in the opposite direction by the reaction. By the elastic force of the 168, the pressing rod 164 is prevented from being pushed down as it is pushed in the direction of the louver 162 from the upper portion of the stop rod 160 to prepare for the next operation quickly.

Through this process, the shuttlecock is repeatedly practiced to pick up another racket that bounces forward.

On the other hand, when the shuttle cock 600 is to change the direction in which it is thrown out by rotating the handle 183 so that the stop piece 180 is flipped and at the same time the left and right feed shaft 182 is in contact with the left and right feed cam 170 The support plate 110 is reciprocated from left to right or from right to left around the center shaft 330 so that the direction of the shuttle cock drawing unit 100 installed on the upper part of the support plate 110 is changed to make the shuttle cock (left and right both directions). 600) will bounce off.

At this time, when the left and right feed shaft 182 in contact with the left and right feed cam 170 moves downward from the top of the inclined surface, the first rotating elastic spring 350 is stretched and the left and right moving shaft 182 is moved upward from the bottom of the inclined surface. When moving, the support plate 110 can be smoothly moved in the opposite direction by the elastic force of the first rotation spring (350).

In addition, when the shuttle cock drawing unit 100 is moved up and down to change the traveling direction of the shuttle cock 600, the clutch 191 is connected to the drive shaft 130 by operating the clutch handle 190 and at the same time the sprocket wheel ( As the 192 is rotated, the eccentric guide cam 194 is rotated by the chain 193 connected thereto.

Next, the rod 195 coupled to the eccentric guide cam 194 is moved up and down by the eccentric distance about the hinge roller 196 and along the vertical rod 197 coupled to the other side of the hinge roller 196. As the support plate 110 is pressed, the hinge member 320 coupled with the hinge 321 to the hinge piece 313 of the transfer frame 300 is tilted back and forth, so that the shuttle cock 600 is once bounced high and the other time. You can repeatedly bounce low.

At this time, the operation can be made smoothly by the second rotating elastic spring 360, and the lower portion of the vertical rod 197 is guided to the guide plate 197 having a curved shape coupled to the upper portion of the transfer frame 300. As it is coupled to be caught by (198) it is possible to move the support plate 110.

On the other hand, a power not shown is applied to the second motor 380 by the switch to rotate the second motor 380 and at the same time the screw shaft 312 connected to the second chain 381 is rotated by the screw shaft ( The transfer frame 300 coupled to 312 may be used by adjusting the height of the shuttlecock drawing unit 100 by being transferred from top to bottom or bottom to top along the screw shaft 312.

As described above, the present invention allows the shuttle cock to be sequentially dropped from the shuttle cock supply unit installed at the upper part of the frame so that the shuttle cock can be repeatedly blown up and down, left and right through the shuttle cock drawing unit installed on the support plate, even without a separate lesson coach. You can practice batting posture, timing, RBI, and steps, and you'll get more effects to correct your posture.

Claims (5)

In the badminton practice apparatus is provided with a shuttlecock drawing unit 100 is installed on the frame 500 and the shuttlecock supply unit 200 is installed on the shuttlecock drawing unit 100, The shuttlecock drawing unit 100 is connected to one side of the first chain 122 to the driving sprocket wheel 121 of the first motor 120 fixed to the support plate 110, the other side of the first chain 122 The guide guide cam 140 is connected to the drive sprocket wheel 132 of the drive shaft 130 fixed to the support plate 110 by the bearing 131, and the drive sprocket 130 is fitted with the driven sprocket wheel 132. Being coupled, the shaft fixing part 150 is inserted into the support plate 110, the upper portion of the pull guide cam 140 is inserted so that the shaft 151 penetrates, and the roller (1) on one side of the shaft 151 153 is coupled to the pull rod 152 is coupled, the pull rod 152 is formed with a fixing projection 154 one side of the pull spring 155 is caught and the other side of the pull spring 155 is tensioned It is configured to be caught on the adjustment rod 156, the handle clamp 157 is coupled to the other side of the shaft 151, the roll A portion of the outer circumferential surface of the chuck 153 is configured to contact the pull guide cam 140, badminton practice device. The method of claim 1, The stop rod 160 is coupled to the shaft 151 between the handle clamps 157, and the lower portion of the stop rod 160 is inserted into the fixing groove 161 formed as the lower portion of the shaft fixing part 150. 162 abuts an upper end and an upper portion of the stop rod 160 is coupled to abut on a pressure rod 164 coupled to a hinge piece 163 formed as an upper portion of the shaft fixing part 150, and the stop rod 160 The other end of the pressing rod 164 abuts on the upper portion of the pressing rod 164 is coupled to the extension panel 165 extending to the shaft fixing unit 150 by the ball joint 166, the extension panel (The ball joint 166 is coupled) Badminton exercise device, characterized in that the tension spring 168 is coupled between 165 and the spring fixing protrusion 167 formed on the top of the shaft fixing portion 150. The method of claim 1, The support plate 110 is coupled to the pivot hinge 310 installed above the transfer frame 300, the transfer frame 300 is rotated by a second chain 381 connected to the second motor 380 The hinge is installed to be transported up and down along the screw shaft 312, the pivoting hinge 310 is a hinge member 320 having a curved shape between the hinge piece 313 fixed to the transfer frame 300 is hinged 321 is coupled to the support ring 322, the roller 321 is coupled to the upper portion of the hinge member 320 is coupled by welding, the center shaft 330 in the center of the hinge member 320 By installing the support plate 110 is rotatably coupled to the sleeve 340, and both ends of the first rotating elastic spring 350 is fixed between the hinge member 320 and the support plate 110, the hinge member Both ends of the second rotational elastic spring 360 is fixed between the 320 and the transfer frame 300, and the transfer frame 300 Badminton jidoe exercise device is a cylinder (370) installed in the unit, the rod 371 of the cylinder 370 is coupled to the lower portion of the base plate (110), characterized the rock map composed. The method of claim 1, The left and right transfer cams 170 are coupled between the driven sprocket wheel 132 and the pull guide cam 140 and the left and right transfer cams 170 are selectively provided by a stop piece 180 coupled to the support plate 110. The badminton practice apparatus is configured to abut, the left and right transfer cam 170 abuts on the combined left and right transfer shaft 182 of the stop piece 180 is configured to reciprocate the support plate 110 from side to side. . The method of claim 1, The shuttle cock supply unit 200 is rotated by the third motor 230, the rotary body 220, a plurality of unit storage pipe 221 is coupled to the upper portion of the supply frame 210 coupled to the upper portion of the support plate 110. It is possible to be installed, the lead portion 240 is provided in the lower portion of the unit reservoir tube 221, the lead portion 240 is provided with an elastic arm 242 at both ends of each of the rotating shaft 241 A gear 243 is coupled to the rotating shaft 241, and a positioning rod 244 is coupled between the elastic arms 242 and the positioning rod 244 is a stopper coupled to the rotating shaft 241. Movement is repeated by the 250, and the gear 243 is rotated by the bevel gear 260 coupled to both ends of the driving shaft 130 and the vertical shaft 250 exposed to one side of the pull guide cam 140. The vertical axis 250 is divided into two and formed by forming the recessed portion 251 and the convex portion 252 in the upper and lower ends of each separated Badminton exercise device of this becomes coupled bonded portion characterized by fixed with screws (253).

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