WO2009048206A1

WO2009048206A1 - Sporting apparatus for multi purpose

Info

Publication number: WO2009048206A1
Application number: PCT/KR2008/001043
Authority: WO
Inventors: Yeon Ok Jeong
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-11
Filing date: 2008-02-22
Publication date: 2009-04-16
Anticipated expiration: 2010-04-11
Also published as: KR20090037294A; CN101820956A; CN101820956B; KR101103153B1

Abstract

A multi-purpose sporting apparatus is provided. The multi-purpose sporting apparatus includes one or more rotationally-moving bar assemblies, vibration links, rope skipping handles, link units, and a rope skipping plate. Each of the rotationally-moving bar assemblies includes a lower rotationally-moving bar vertically mounted to a main body so as to be rotated, and an upper rotationally-moving bar coupled to the lower rotationally-moving bar so that the height thereof is adjusted. The vibration links are rotatably supported on the main body so as to be seesawed. The rope skipping handles are mounted to respective predetermined locations of the rotationally-moving bar assemblies. The link unit is configured to seesaw the respective vibration links in response to the rotation of the rope skipping handles. The rope skipping plate mounted such that one side thereof is rotatably supported on the upper portion of the main body.

Description

SPORTING APPARATUS FOR MULTI PURPOSE

Technical Field

[1] The present invention relates to a multi-purpose sporting apparatus which enables a user to perform various exercises, such as a rope skipping exercise and a paddling exercise, without the use of any additional apparatus and, more particularly, to a multipurpose sporting apparatus, which enables pedal plates to be rotationally moved upwards by the rotation of a link type handle, thus achieving the same effect as that obtained when a rope skipping exercise is performed, and which enables a rotationally- moving pedal assembly to be rotationally moved in conjunction with the rotational forward and backward movement of rotationally-moving bar assemblies, thus enabling the user to perform all the pedaling, waist and body exercises, and which has a structure in which the rotationally-moving pedal assembly is rotationally moved around an x-shaft and/or a y-shaft, thus extending an exercise function. Background Art

[2] Various types of sporting apparatuses, such as a running machine, a stepper, a pedaling machine and a belt vibration machine, have been invented such that various exercises can be performed in an indoor region. Furthermore, a multi-purpose sporting apparatus, which has a structure that enables a user to perform various exercises, in addition to a rope skipping exercise using a rope, without the use of any additional apparatus, has been developed. Such a multi-purpose sporting apparatus is further useful when exercises are performed in an indoor region. In particular, the significance of the multi-purpose sporting apparatus is that rope skipping is mechanically realized so that a great exercise effect can be obtained by only a simple action. Disclosure of Invention Technical Problem

[3] Accordingly, an object of the present invention is to provide a structure which enables a user to enjoy an exercise effect greater than that obtained by a conventional multi-purpose sporting apparatus, and which can provide easy manipulation.

Technical Solution

[4] In order to accomplish the above object, the present invention provides a multipurpose sporting apparatus, comprising: one or more rotationally-moving bar assemblies, each comprising: a lower rotationally-moving bar, which is vertically mounted to a main body so as to be rotated; and an upper rotationally-moving bar, which is coupled to the lower rotationally-moving bar so that the height thereof is adjusted; vibration links rotatably supported on the main body so as to be seesawed; rope skipping handles mounted to respective predetermined locations of the ro- tationally-moving bar assemblies; link units for seesawing the respective vibration links in response to the rotation of the rope skipping handles, each of the link units comprising: a rotational shaft, which is configured such that one end thereof is fastened to a corresponding rope skipping handle and such that the remaining end thereof is mounted to a corresponding upper rotationally-moving bar so as to be rotated; a rotational link, which is configured such that one end thereof is fastened to the remaining end of the rotational shaft, a connection link, which is configured such that one end thereof is mounted to the remaining end of the rotational link so as to be ro- tationally moved, and a adjusting bar, which is coupled to the remaining end of the connection link; and a rope skipping plate mounted such that one side thereof is rotatably supported on the upper portion of the main body, and rotationally moved in such a way that the first ends of the vibration links are brought into contact with the lower surface of the rope skipping plate.

[5] According to a preferred embodiment of the present invention, a vertical groove, into which a corresponding adjusting bar is inserted, and a screw hole, which is perpendicular to the vertical groove, are formed in the lower portion of a corresponding connection link; and each of the link units further comprising: a pressing block for pressing the corresponding adjusting bar, the pressing block comprising a groove, having a shape identical to that of the vertical groove of the corresponding adjusting bar, and a through-hole, which is formed perpendicular to the groove; and a fastening lever having a screw, the screw being formed on one end of the fastening lever so as to be engaged with the screw hole of the corresponding connection link via the through- hole of the pressing block; whereby, when a user rotates the fastening lever at a predetermined angle, the corresponding pressing block and the corresponding connection link are pressed or released such that the corresponding adjusting bar is securely fastened or loosened.

[6] According to a preferred embodiment of the present invention, the multi-purpose sporting apparatus further includes height adjusting screws which are mounted to respective ends of the vibration links so as to adjust the displacement of the rope skipping plate.

[7] According to a preferred embodiment of the present invention, the multi-purpose sp orting apparatus further includes a rotational plate which is mounted to the main body so as to be rotated by the rotational movement of the lower rotationally-moving bars.

[8] According to a preferred embodiment of the present invention, the multi-purpose sporting apparatus further includes a rotationally-moving pedal assembly which is mounted to the rotational plate, the rotationally-moving pedal assembly comprising: a base, which is coupled to the rotational plate; a pair of round ring-shaped rings, which are arranged above the base at a predetermined interval; a y-shaft, which is inserted into the rings so as to be rotated; an x-shaft, which is configured such that a central portion thereof is fastened to one end of the y-shaft; a pair of pedal plates, which are configured such that one side of each pedal plate is fitted around the x-shaft so as to be rotationally moved; a rolling rod, which is mounted so as to be rotatably supported on the remaining end of the y-shaft by a pin and to be rotationally moved, is arranged parallel to the x-shaft, and is configured such that rollers that come in contact with the lower surfaces of the pedal plates are mounted to respective ends of the rolling rod; a first locking lever, which is mounted on a first ring of the rings so as to be rotationally moved; locking protrusions formed on the y-axis to lock the locking lever; a locking rod mounted to the rolling rod; and a second locking lever mounted to the y-axis so as to be rotationally moved.

[9] According to a preferred embodiment of the present invention, one or more mounting plates are mounted so as to be rotationally moved. The lower rotationally-moving bars are configured to be detachably attached to the respective mounting plates.

[10] According to a preferred embodiment of the present invention, the upper rotationally- moving bars are configured to be inserted into the respective lower rotationally- moving bars. Height adjusting bars, each having a plurality of locking holes, are rotatably supported to the respective upper rotationally-moving bar. Locking protrusions are formed on the respective lower rotationally-moving bar so as to be inserted into the locking holes, whereby the locking holes and the locking protrusions are locked to each other in a state in which a height is adjusted.

[11] According to a preferred embodiment of the present invention, the first ends of connecting rods are rotatably mounted to respective lower portions of the lower rotationally-moving bars. The second ends of the connecting rods are connected to respective traction links, each of the traction links having an "L" shape and being configured such that the central bent portion thereof is mounted to the main body so as to be rotationally moved by a pin. The second ends of the traction links are connected to respective ropes, the ropes being fastened to the respective first ends of actuating rods; the actuating rods are supported by moving support links to operate like a seesaw. The second ends of the actuating rods are fastened to a rotational plate located in the central portion of the main body and are connected to a wound rope.

[12] According to a preferred embodiment of the present invention, the multi-purpose sporting apparatus further includes a rotational angle adjusting lever coupled to the main body so as to be rotated; and support link actuating rods for connecting the rotational angle adjusting lever with the support links so that the support links are rotationally moved by the rotational movement of the rotational angle adjusting lever; wherein, when the support links are rotationally moved around a pin, which is coupled to the main body so as to be rotated, according to operation of the rotational angle adjusting lever, actuation points, which are in contact with the actuating rods, are changed, so that the displacements of the actuating rods from the actuation points are adjusted, and thus the rotational angle of the rotational plate is adjusted.

[13] According to a preferred embodiment of the present invention, the multi-purpose sporting apparatus further includes an intensity adjusting rope, which is configured such that one end of which is fastened to the main body and which is mounted to cross a first actuating rod of the actuating rods; an intensity adjusting lever, which is connected to the remaining end of the intensity adjusting rope; and a rope roller mounted to the first actuating rod; wherein the intensity adjusting lever is an L-shaped link and is configured such that the bent portion of the intensity adjusting lever is coupled to the main body, thus functioning to adjust the tension of the intensity adjusting rope through rotation, and the intensity adjusting rope is caught by the rope roller.

[14] Accordingly, the present invention can provide various structures in which the coupling structure between the connection links and the adjusting rods is achieved using a lever operating method, rather than a conventional bolt coupling method, and thus the rope skipping handles are located at positions corresponding to the height of a user when a rope skipping exercise is performed, and in which the rotational pedal plate is rotationally moved around a plurality of shafts.

Advantageous Effects

[15] The present invention enables a user to more effectively enjoy various exercises without the use of any additional apparatus. Furthermore, the present invention enables a change to a desired exercise mode through simple manipulation, thus increasing the enjoyment and effect of exercise.

Brief Description of Drawings [16] FIG. 1 is a perspective view showing a main body and a rotationally-moving pedal assembly, according to the present invention; [17] FIG. 2 is a perspective view showing a rotationally-moving bar assembly according to the present invention; [18] FIGS. 3A and 3B are views showing the manipulation of the rotationally-moving bar assembly; [19] FIG. 4 is an operational view of the rotationally-moving bar assembly when a rope skipping exercise is performed; [20] FIG. 5 is a view showing a state when the rotationally-moving bar assembly is laid down; [21] FIGS. 6 to 8 are views showing the internal construction and operation of the main body;

[22] FIG. 9 is a perspective view of the rotationally-moving pedal assembly;

[23] FIGS. 10 and 12 are views showing a state in which pedal plates are rotationally moved around an x-axis; and [24] FIGS. 11 and 13 are views showing a state in which pedal plates are rotationally moved around x- and y-axes.

[25] v>(- Description of characters of principal elements

[26] 1: main body 2: vibration link

[27] 3: rope skipping handle 4: rope skipping plate

[28] 5: lower rotationally-moving bar

[29] 6: upper rotationally-moving bar

[30] 7: mounting plate 8: rotational shaft

[31] 9: rotational link 10: connection link

[32] 11: fastening lever 12: adjusting bar

[33] 13: pressing block 14: locking hole

[34] 15: height adjusting bar 16: locking protrusions

[35] 16': locking pin 17: connecting rod

[36] 18: traction link 19: pin

[37] 20a, 20b: rope 21: actuating rod

[38] 22: support link 23: rotational plate

[39] 24: rotationally-moving pedal assembly

[40] 25: fixture 26: intensity adjusting rope

[41] 27: intensity adjusting lever

[42] 28: rope roller 29: actuation point

[43] 30: base 31: ring

[44] 32: y-shaft 33: x-shaft

[45] 34: pedal plate 35: roller

[46] 36: rolling rod 37a, 37b: locking lever

[47] 38: locking rod 39: height adjusting screw

[48] 40: rotational angle adjusting lever

[49] 41: support link actuating rod

Best Mode for Carrying out the Invention [50] The construction and operation of the present invention are described in detail with reference to the accompanying drawings below. [51] The present invention includes a pair of rotationally-moving bar assemblies vertically mounted to a main body 1 so as to be rotationally moved; vibration links 2 rotatably supported on the main body 1 so as to be seesawed; rope skipping handles 3 mounted at respective predetermined locations of the rotationally-moving bar assemblies so as to be rotated; link units for seesawing the respective vibration links 2 in response to the rotation of the rope skipping handles 3; and a rope skipping plate 4 mounted such that one side thereof is rotatably supported on the upper portion of the main body 1, and ro- tationally moved in such a way that the first ends of the vibration links 2 are brought into contact with the lower surface of the rope skipping plate.

[52] In greater detail, each of the rotationally-moving bar assemblies includes a lower rotationally-moving bar 5, which is supported on the lower surface of the main body 1 so as to be rotationally moved, and an upper rotationally-moving bar 6, which is inserted into the lower rotationally-moving bar 5 so that the height thereof can be adjusted.

[53] The lower rotationally-moving bar 5 is configured to be inserted into the main body 1 for use thereof and to be removed from the main body 1 for storage thereof. That is, the lower rotationally-moving bar 5 is mounted to a mounting plate 7, which is mounted on the main body 1 so as to be rotationally moved. The mounting plate 7 may have any structure into which the lower rotationally-moving bar 5 is inserted.

[54] Furthermore, each of the link units includes a rotational shaft 8, which is configured such that one end thereof is fastened to a corresponding rope skipping handle 3 and such that the other end thereof is mounted to a corresponding upper rotationally- moving bar 6 so as to be rotated, a rotational link 9, which is configured such that one end thereof is fastened to the other end of the rotational shaft 8, a connection link 10, which is configured such that one end thereof is mounted to the other end of the rotational link 9 so as to be rotationally moved, and a adjusting bar 12, which is coupled to the other end of the connection link 10 using a fastening lever 11.

[55] A vertical groove, into which a corresponding adjusting bar 12 is inserted, and a screw hole, which is perpendicular to the vertical groove, are formed in the lower portion of a corresponding connection link 10. Furthermore, each of the link units further includes a pressing block 13 for pressing the corresponding adjusting bar 12. The pressing block 13 has a groove having the same shape as that of the vertical groove of the corresponding adjusting bar 12, and a through-hole formed perpendicular to the groove. Furthermore, a screw is formed on one end of a corresponding fastening lever 11 so as to be engaged with the screw hole of the connection link 10 via the through-hole of a corresponding pressing block 13. Accordingly, when a user rotates the fastening lever 11 at a predetermined angle, the corresponding pressing block 13 and the corresponding connection link 10 are pressed or released such that the corresponding adjusting bar 12 can be securely fastened or loosened.

[56] Furthermore, the vibration links 2 are configured such that the first ends thereof are connected to the respective first ends of the adjusting bars 12 so as to be rotationally moved, and such that the central portions thereof are rotatably supported so as to be seesawed, and such that the second ends thereof lift the rope skipping plate 4.

[57] Furthermore, the upper rotationally-moving bar 6 is configured to be inserted into the lower rotationally-moving bar 5. A height adjusting bar 15 having a plurality of locking holes 14 is rotatably supported on the upper rotationally-moving bar 6. A locking pin 16' is formed on the lower rotationally-moving bar 5 so as to be inserted into the locking holes 14. Accordingly, the locking holes 14 and the locking pin 16' are locked to each other in the state in which the height is adjusted.

[58] Furthermore, the first ends of connecting rods 17 are rotatably mounted to the respective lower portions of the rotationally-moving bar assemblies. The second ends of the connecting rods 17 are connected to respective traction links 18. Each of the traction links 18 has an "L" shape. The central bent portion of each traction link 18 is mounted to the main body 1 so as to be rotationally moved by a pin 19. Furthermore, the second ends of the traction links 18 are connected to respective ropes 20a. The ropes 20a are fastened to the respective first ends of actuating rods 21. The actuating rods 21 are supported by moving support links 22 to operate like a seesaw. The second ends of the actuating rods 21 are fastened to a rotational plate 23 located in the central portion of the main body, and are connected to a wound rope 20b.

[59] As described above, the present invention has a symmetrical structure. In this structure, the rope 26b is reciprocatingly rotated by the operation of the two rotationally-moving bar assemblies, and thus the rotational plate 23 is rotated.

[60] Accordingly, the rotation of the rotationally-moving bar assemblies causes the rotation of the rotational plate 23, so that a rotationally-moving pedal assembly 24 mounted to the rotational plate 23 is also rotated, and thus both pedaling and waist exercises can be simultaneously performed.

[61] Furthermore, in the above structure, when a pedaling exercise is performed, the rope skipping plate 4 must be rotated and pulled back from the main body 1. In contrast, when a rope skipping exercise is performed, no pedaling exercise may be performed. To this end, in the case where the rope skipping plate 4 covers the main body 1, the ends of the traction links 18 are fixed, and thus the rotation of the lower rotationally- moving bar 5 is prevented. Accordingly, fixtures 25 are formed on the lower surface of the rope skipping plate 4, so that the ends of the traction links 18 can be pressed.

[62] Furthermore, the intensity of the pedaling exercise can be variably adjusted according to the speed of rotation of the rotationally-moving bar assemblies. To this end, an intensity adjusting rope 26, one end of which is fastened to the main body 1, is mounted to cross a first actuating rod of the actuating rods 21, and an intensity adjusting lever 27 is connected to the other end of the intensity adjusting rope 26. The intensity adjusting lever 27 is an L-shaped link and is configured such that the bent portion of the intensity adjusting lever 27 is coupled to the main body 1, thus functioning to adjust the tension of the intensity adjusting rope 26 through rotation. Furthermore, a rope roller 28 is mounted to the first actuating rod 21. The intensity adjusting rope 26 is caught by the rope roller 28.

[63] Furthermore, the rotation angle of the rotational plate 23 can be adjusted on the basis of a leverage principle. That is, when the support links 22 are rotated around the respective pins 19, actuation points 29, that is, the contact points between the protru sions of the support links 22 and the actuating rods 21, are changed. As a result, the displacements of the actuating rods 21 to which the rope is connected from the actuation points 29 occur, so that the motion of the rope 20b is adjusted, and thus the rotational angle of the rotational plate 23 is adjusted. Accordingly, the central portion of a rotational angle adjusting lever 40 connected with support link actuating rods 41 is rotatably supported on the main body 1. Accordingly, when the rotational angle adjusting lever 40 is rotationally moved, the motion of the support links 22 can be adjusted by the support link actuating rods 41.

[64] Furthermore, the present invention has a structure in which the rotationally-moving pedal assembly 24 is mounted to the rotational plate 23 and is rotationally moved, thus achieving both rotation and rotational movement. In greater detail, the rotationally- moving pedal assembly 24 includes a base 30, which is coupled to the rotational plate 23, a pair of round ring-shaped rings 31, which are arranged above the base 30 at a predetermined interval, a y-shaft 32, which is inserted into the rings 31 so as to be rotated, an x- shaft 33, which is configured such that the central portion thereof is fastened to one end of the y-shaft 32, a pair of pedal plates 34, which are configured such that one side of each pedal plate is fitted around the x-shaft 33 so as to be rotationally moved, and a rolling rod 36, which is mounted so as to be rotatably supported on the other end of the y-shaft 32 by a pin and to be rotationally moved, is arranged parallel to the x- shaft 33, and is configured such that rollers 35 that come in contact with the lower surfaces of the pedal plates 34 are mounted to respective ends of the rolling rod 36.

[65] The pedal plates 34 can be rotationally moved around the x-shaft 33, and can also be rotationally moved simultaneously around both the x-shaft 33 and the y-shaft 32. As for the construction that enables the above-described operation, the y-shaft 32 must be first fixed such that the pedal plates 34 are rotationally moved around only the x-shaft 33, rather than rotationally moved around the y-shaft 32. To this end, a locking lever 37a is mounted on a first ring of the rings 31 so as to be rotationally moved, and locking protrusions 16 are formed on the y-shaft 32 to lock the locking lever 37a. Accordingly, in the case where the locking lever 37a is locked to the locking protrusions 16 as shown in FIG. 10, the x-shaft 33 is prevented from being rotationally moved around the y-shaft 32, and thus the pedal plates 34 are moved around only the x-shaft 33. In this case, the rollers 35, which are mounted to the respective ends of the rolling rod 36, operate in contact with the lower surfaces of the pedal plates 34. The rolling rod 36 is rotationally moved according to the motion of the pedal plates 34.

[66] FIG. 11 shows the case where the pedal plates 34 are rotationally moved simultaneously around both the x-shaft 33 and the y-shaft 32 due to multiple exercises. In this case, the locking lever 37a must be removed from the locking protrusions 16. Furthermore, a locking rod 38 is mounted to the rolling rod 36, which is mounted to the y-shaft 32 so as to be rotationally moved. A locking lever 37b is mounted to the y- shaft 32 so as to be rotationally moved. Accordingly, when only the locking lever 37b is locked to the locking rod 38, the pedal plates 34 are rotationally moved simultaneously around both the x-shaft 33 and the y-shaft 32, as shown in FIG. 11. Accordingly, when the pedal plates 34 are alternately pressed, the y-shaft 32 is rotated in the rings 31 and, at the same time, the pedal plates 34 are rotationally moved around the x-shaft 33.

[67] The present invention having the above structure enables a user to perform a rope skipping exercise and, in addition, enables the user to simultaneously perform both a pedaling exercise and waist turning exercise.

[68] First, the operation of the present invention, which enables the rope skipping exercise, is described below. The rope skipping exercise is achieved by simultaneously performing both an arm motion for turning a rope and a jumping motion for preventing the feet from being caught by the rope while conforming to the arm motion. The present invention allows the above-described rope skipping exercise to be realized.

[69] In greater detail, when a user rotates the rope skipping handles 3 while holding them as if rotating a real rope, the rotational shafts 8 mounted to the respective upper ro- tationally-moving bars 6 are rotated. In this case, the rotational links 9 were fastened to the respective rotational shafts 8. The connection links 10 were connected to the respective second ends of the rotational links 9. The adjusting bars 12 were connected to the respective connection links 10 by the fastening levers 11. Accordingly, the rotation of the rope skipping handles 3 causes the adjusting bars 12 to reciprocate vertically.

[70] The vertical reciprocating of the adjusting bars 12 causes the vibration links 2 to be seesawed. That is, the adjusting bars 12 are coupled to the respective first ends of the vibration links 2, and the second ends of the vibration links 2 are brought into contact with the rope skipping plate 4, and thus a lifting operation is performed.

[71] When the rope skipping handles 3 are rotated as described above, the ends of the vibration links 2 lift the rope skipping plate 4. In this state, if the user does not jump on the rope skipping plate 4, the vibration links 2 cannot lift the rope skipping plate 4, and thus the operation of the rope skipping handles 3 is stopped. Furthermore, the displacement of the rope skipping plate 4 can be adjusted. This is the same as adjusting the jumping height. To this end, height adjusting screws 39 are coupled to the respective ends of the vibration links 2. Accordingly, when the height adjusting screws 39 is adjusted, the adjustment of the height can be achieved.

[72] Accordingly, when the user jumps on the rope skipping plate 4 so that the rope skipping plate 4 can be rotationally moved, the rope skipping handle 3 is rotated, and thus the effect of skipping a rope can be achieved.

[73] Furthermore, the height of each rope skipping handle 3 can be adjusted depending on the user's height. To this end, it is necessary to adjust the height of each upper ro- tationally-moving bar 6 inserted into a corresponding lower rotationally-moving bar 5 and to lock the locking pins 16 of the lower rotationally-moving bars 5 to the locking holes 14 of the height adjusting bars 15 mounted to the respective upper rotationally- moving bars 6. In this case, the fastening levers 11 must be manipulated such that the pressing blocks 13 can be fastened to the adjusting bars 12.

[74] The pedaling exercise and the waist exercise can be simultaneously performed. This can be achieved by the structure in which the rotational plate 23 is rotated in conjunction with the rotational movement of the rotationally-moving bar assemblies.

[75] In order to perform the pedaling exercise, it is necessary to move the rope skipping plate 4 rotationally, to place the feet on the pedal plates 34, and to alternately move the upper rotationally-moving bars 6 rotationally. When the traction links 18 are rotationally moved around the respective pins 19 by the connecting rods 17 coupled to the respective lower rotationally-moving bars 5, the ropes 20a are pulled by the traction links 18. The ropes 20a are fastened to the rotational plate 23 via the respective actuating rods 21 and are connected to the wound rope 20b. Accordingly, when the rope 20b is pulled, the rotational plate 23 can be rotated. Here, the rotationally-moving pedal assembly 24, having the pedal plates 34, is coupled to the rotational plate 23, and the adjustment of the height depending on the user's height can be achieved as in the rope skipping.

[76] The present invention has a symmetrical left and right structure. The rope 20b is alternately moved in the clockwise and counterclockwise directions, and thus the rotational direction of the rotational plate 23 is changed.

[77] When the rotational plate 23 is rotationally moved in conjunction with the rotational movement of the rotationally-moving bar assemblies and when a load is applied to the rotational movement of the rotationally-moving bar assemblies, the intensity of exercise can be increased. In order to accomplish this purpose, the intensity adjusting lever 27 and the intensity adjusting rope 26 are used. In greater detail, when the tension of the intensity adjusting rope 26 increases, the rope roller 28 mounted to the first actuating rod of the actuating rods 21 moves while pushing the intensity adjusting rope 26, so that the pushing force varies according to the tension of the intensity adjusting rope 26. Accordingly, when the intensity adjusting rope 26 is pulled or loosened by ro- tationally moving the intensity adjusting lever 27 around a central pin, the intensity of exercise can be adjusted.

[78] Furthermore, the present invention can adjust the rotational angle of the rotational plate 23. This can be achieved by changing an actuation point based on a leverage principle. In greater detail, the central portion of the rotational angle adjusting lever 40 is rotatably supported on the main body 1, and the support link actuating rods 41 are coupled to respective sides of the supported portion. Accordingly, the actuation points 29 can be changed by rotationally moving the support links 22.

[79] The first ends of the support links 22 are rotatably supported on the main body 1, and the second ends of the support links 22 are hooked on the respective actuating rods 21, so that the contact points between the protrusions of the support links 22 and the actuating rods 21 are changed by the rotational movement of the support links 22. Accordingly, each of the actuating rods 21 functions as a lever, and the displacement of the protrusion of each actuating rod 21 is changed.

[80] Accordingly, the actuation points 29, that is, the contact point between the actuating rod 21s and the support links 22, are symmetrically changed in the left and right direction, and the rotational plate 23 is rotated by the motion of the actuating rods 21, which are connected to the respective ends of the rope 20b, while the rotational angle of the rotational plate 23 varies. As a result, the user can perform exercises while appropriately adjusting a rotational range according to his or her conditions.

[81] The rotationally-moving pedal assembly 24 may be mounted above the rotational plate 23 for use thereof. Both a rotation exercise and a left and right stepping exercise may be simultaneously performed using the rotationally-moving pedal assembly 24 that is rotationally moved around the x-shaft 33 and the y-shaft 32. This operation has been described in detail in the description of the structure.

Claims

[1] A multi-purpose sporting apparatus, comprising: one or more rotationally-moving bar assemblies, each comprising: a lower ro- tationally-moving bar, which is vertically mounted to a main body so as to be rotated; and an upper rotationally-moving bar, which is coupled to the lower rotationally-moving bar so that a height thereof is adjusted; vibration links rotatably supported on the main body so as to be seesawed; rope skipping handles mounted to respective predetermined locations of the rotationally-moving bar assemblies; link units for seesawing the respective vibration links in response to rotation of the rope skipping handles, each of the link units comprising: a rotational shaft, which is configured such that one end thereof is fastened to a corresponding rope skipping handle and such that a remaining end thereof is mounted to a corresponding upper rotationally-moving bar so as to be rotated; a rotational link, which is configured such that one end thereof is fastened to the remaining end of the rotational shaft, a connection link, which is configured such that one end thereof is mounted to a remaining end of the rotational link so as to be ro- tationally moved, and a adjusting bar, which is coupled to a remaining end of the connection link; and a rope skipping plate mounted such that one side thereof is rotatably supported on an upper portion of the main body, and rotationally moved in such a way that the first ends of the vibration links are brought into contact with a lower surface of the rope skipping plate.

[2] The multi-purpose sporting apparatus according to claim 1, wherein a vertical groove, into which a corresponding adjusting bar is inserted, and a screw hole, which is perpendicular to the vertical groove, are formed in a lower portion of a corresponding connection link; and each of the link units further comprising: a pressing block for pressing the corresponding adjusting bar, the pressing block comprising a groove, having a shape identical to that of the vertical groove of the corresponding adjusting bar, and a through-hole, which is formed perpendicular to the groove; and a fastening lever having a screw, the screw being formed on one end of the fastening lever so as to be engaged with the screw hole of the corresponding connection link via the through-hole of the pressing block; whereby, when a user rotates the fastening lever at a predetermined angle, the corresponding pressing block and the corresponding connection link are pressed or released such that the corresponding adjusting bar is securely fastened or loosened.

[3] The multi-purpose sporting apparatus according to claim 1, further comprising: height adjusting screws which are mounted to respective ends of the vibration links so as to adjust a displacement of the rope skipping plate.

[4] The multi-purpose sporting apparatus according to any one of claims 1 to 3, further comprising: a rotational plate which is mounted to the main body so as to be rotated by rotational movement of the lower rotationally-moving bars.

[5] The multi-purpose sporting apparatus according to claim 4, further comprising: a rotationally-moving pedal assembly which is mounted to the rotational plate, the rotationally-moving pedal assembly comprising: a base, which is coupled to the rotational plate; a pair of round ring-shaped rings, which are arranged above the base at a predetermined interval; a y-shaft, which is inserted into the rings so as to be rotated; an x-shaft, which is configured such that a central portion thereof is fastened to one end of the y-shaft; a pair of pedal plates, which are configured such that one side of each pedal plate is fitted around the x-shaft so as to be rotationally moved; a rolling rod, which is mounted so as to be rotatably supported on a remaining end of the y-shaft by a pin and to be rotationally moved, is arranged parallel to the x-shaft, and is configured such that rollers that come in contact with lower surfaces of the pedal plates are mounted to respective ends of the rolling rod; a first locking lever, which is mounted on a first ring of the rings so as to be rotationally moved; locking protrusions formed on the y-axis to lock the locking lever; a locking rod mounted to the rolling rod; and a second locking lever mounted to the y-axis so as to be rotationally moved.

[6] The multi-purpose sporting apparatus according to any one of claims 1 to 3, wherein: one or more mounting plates are mounted so as to be rotationally moved; and the lower rotationally-moving bars are configured to be detachably attached to the respective mounting plates.

[7] The multi-purpose sporting apparatus according to any one of claims 1 to 3, wherein: the upper rotationally-moving bars are configured to be inserted into the respective lower rotationally-moving bars; height adjusting bars, each having a plurality of locking holes, are rotatably supported to the respective upper rotationally-moving bar; and locking protrusions are formed on the respective lower rotationally-moving bar so as to be inserted into the locking holes; whereby the locking holes and the locking protrusions are locked to each other in a state in which a height is adjusted.

[8] The multi-purpose sporting apparatus according to any one of claims 1 to 3, wherein: first ends of connecting rods are rotatably mounted to respective lower portions of the lower rotationally-moving bars; second ends of the connecting rods are connected to respective traction links, each of the traction links having an "L" shape and being configured such that a central bent portion thereof is mounted to the main body so as to be rotationally moved by a pin; second ends of the traction links are connected to respective ropes, the ropes being fastened to respective first ends of actuating rods; the actuating rods are supported by moving support links to operate like a seesaw; and second ends of the actuating rods are fastened to a rotational plate located in a central portion of the main body and are connected to a wound rope.

[9] The multi-purpose sporting apparatus according to claim 8, further comprising: a rotational angle adjusting lever coupled to the main body so as to be rotated; and support link actuating rods for connecting the rotational angle adjusting lever with the support links so that the support links are rotationally moved by rotational movement of the rotational angle adjusting lever; wherein, when the support links are rotationally moved around a pin, which is coupled to the main body so as to be rotated, according to operation of the rotational angle adjusting lever, actuation points, which are in contact with the actuating rods, are changed, so that displacements of the actuating rods from the actuation points are adjusted, and thus an rotational angle of the rotational plate is adjusted.

[10] The multi-purpose sporting apparatus according to any one of claims 1 to 3, further comprising: an intensity adjusting rope, which is configured such that one end of which is fastened to the main body and which is mounted to cross a first actuating rod of the actuating rods; an intensity adjusting lever, which is connected to a remaining end of the intensity adjusting rope; and a rope roller mounted to the first actuating rod; wherein the intensity adjusting lever is an L-shaped link and is configured such that a bent portion of the intensity adjusting lever is coupled to the main body, thus functioning to adjust tension of the intensity adjusting rope through rotation, and the intensity adjusting rope is caught by the rope roller.