JPH0691029A - Ski training device - Google Patents

Abstract

PURPOSE:To decrease the number of parts and facilitate the operation of attachment/detachment by fixing support pipes to fit rail end portions, at end portion support frames whose longitudinal both ends are closed by means of openable/closable caps, connecting attachably/ detachably the rail end portions to the support pipes by means of a connection bolt running along the longitudinal direction of the end portion support frames. CONSTITUTION:Both end portions of apair of rails 33 of a circular arc shape that bulges upward, are attachably/detachably connected to a pair of end portion support frames 321, 322 formed into pipe shapes and mounted on a floor surface 31 with a space left to each other, and a movement stand movable on both rails 33 mounting thereon a trainee is energized toward the longitudinal center side of the rails 33. A pair of support pipes 38 to fit the end portions of the rails 33 are fixed at caps 371 that can open/close longitudinal both ends, and the support pipes 38 and the end portions of the rails 33 are attachably/ detachably connected to each other by means of a connection bolt 41 that runs along the longitudinal direction of the end portion support frames 321, 322.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a pair of end supporting frames, which are formed in a tubular shape and are placed on the floor with a space therebetween, and are formed in an arc shape bulging upward. TECHNICAL FIELD The present invention relates to a ski practice device in which both ends of a pair of rails are detachably connected to each other, and a moving table on which a trainee is placed and movable on both rails is urged toward the center side in the longitudinal direction of both rails.

[0002]

2. Description of the Related Art Conventionally, such a ski training device is already known, for example, from Japanese Patent Laid-Open No. 64-37970.

[0003]

By the way, in the above-mentioned conventional device, in order to detachably connect the ends of the pair of rails to the end supporting frame, the bracket is inserted into the end supporting frame made of a pipe. The ends of the pair of rails inserted into the end support frame through the holes provided in the end support frame are fastened to the bracket with a pair of screw members, respectively. Since a bracket for connecting the rails is required and the number of parts is large, and the operation of connecting and disconnecting the end of each rail and the bracket must be performed within the end support frame, the operation is troublesome. .

The present invention has been made in view of the above circumstances, and makes it possible to detachably connect a pair of rails to an end support frame with a reduced number of parts and to facilitate the attachment / detachment operation. It is intended to provide a ski practice device.

[0005]

In order to achieve the above object, according to the invention as set forth in claim 1, the ends of both rails are attached to the end support frame which is closed by caps which can be opened and closed in the longitudinal direction. A pair of support cylinders for fitting the respective parts are fixed,
Both support cylinders and the end portions of both rails are detachably connected by connection bolts along the longitudinal direction of the end support frame.

According to a second aspect of the present invention, in addition to the structure of the first aspect of the invention, a wheel capable of rolling on one rail and a wheel capable of rolling on the other rail are provided. Are mounted on a movable table, allowing movement within a restricted range along the rotation axis of at least one of the wheels.

According to the third aspect of the present invention, in addition to the structure of the first or second aspect of the present invention, one end of each of the support cylinders is non-rotatably attached to both ends of the handle gripped by the practitioner. A mounting portion is provided which is fitted to one end of the end support frame.

According to the invention of claim 4, in addition to the structure of the invention of claim 3, the handle is
It is composed of a plurality of members that can be connected and disconnected from each other.

[0009]

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

1 to 21 show a first embodiment of the present invention. FIG. 1 is a front view of a ski practice device, and FIG.
1 is a view taken in the direction of arrow 2 in FIG. 1, FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
4 is an enlarged view of part 4 of FIG. 1, FIG. 5 is a sectional view taken along line 5-5 of FIG. 4, FIG. 6 is a sectional view taken along line 6-6 of FIG. 4, and FIG. FIG. 8, FIG. 8 is a sectional view taken along line 8-8 of FIG. 5, FIG. 9 is a sectional view taken along line 9-9 of FIG. 4, FIG. 10 is a view for explaining the action of the interlocking means, and FIG. A sectional view corresponding to FIG. 4 in a state in which the rotation around the axis is regulated, FIG. 12 is a sectional view taken along line 12-12 in FIG. 11, and FIG. 13 is a state in which the mounting position of the positioning tool on the footrest is changed. 4 is a cross-sectional view corresponding to FIG. 4, FIG. 14 is a cross-sectional view corresponding to FIG. 4 in a state in which the position where the positioning tool is attached to the foot rest is further changed, and FIG. 15 is a front view showing a practice state using a stock, 16 is a front view showing a practice state using a handle, FIG. 17 is a front view of a ski practice device with a handle attached, and FIG. 18 arrow view of FIG. 19 is a side view of the handle, Fig. 20 is 20 arrow view of FIG. 19, FIG. 21 is a line 21-21 enlarged sectional view of FIG. 18.

First, referring to FIGS. 1 and 2, the ski training apparatus includes first and second end support frames 32 ₁ and 32 ₂ which are placed on a floor surface 31 in parallel with each other and both longitudinal ends thereof. A pair of mutually parallel rails 33 and 33, which are detachably connected to the first and second end support frames 32 ₁ and 32 ₂ , respectively, and a central portion in the longitudinal direction of both rails 33 and 33. A central support frame 34 placed on the floor surface 31, a movable base 35 that can move on both rails 33, 33, and a moving base 35 that restores both rails 33, 33 toward the center in the longitudinal direction. And a restoring force generating means 36 ₁ capable of adjusting the restoring force.

In FIG. 3, both rails 33, 33 are made by bending a metal pipe to form a support frame 32 at both end portions.
It is formed in an arc shape that bulges upward in a plane orthogonal to ₁ and 32 ₂ . On the other hand, the first and second end support frames 32 ₁ ,
32 ₂ is made of a metal pipe whose both ends are open, and both ends of both end support frames 32 ₁ and 32 ₂ are closed by openable and closable elastic caps 37 ₁ respectively. Moreover, on the bottom of each cap 37 ₁ , the floor surface 31
Flat support surface 37 ₁ a closely (see FIG. 1) are respectively provided.

First and second end support frames 32 ₁ , 32 ₂
In this case, the support cylinders 38, 38 are fixed to each other by welding at two positions with an interval corresponding to the interval between the rails 33, 33 provided therebetween. These supporting cylinders 38 and 38 is to penetrate the side wall of the opposite end portions support frame 32 _1, 32 ₂ as its inner end enters the respective end support frame 32 _1, 32 _2, rails 33, Both end portions of 33 in the longitudinal direction are the respective support cylinders 3.
8 and 38 are respectively fitted.

In addition, the pair of support cylinders 38, 38 includes the end support frames 3 in the end support frames 32 ₁ , 32 ₂ .
Insertion holes 39, 39 parallel to the axes of 2 ₁ , 32 ₂ are provided coaxially with each other, and at both ends in the longitudinal direction of the rails 33, 33 in a state of being fitted to the support cylinders 38, 38. Insertion holes 40, 40 coaxial with the insertion holes 39, 39 are provided, respectively.

The coaxial insertion holes 39, 39; 4
A connecting bolt 41 having an engaging head portion 41a that engages with one of the support cylinders 38, 38 is inserted through 0 and 40, and the tip end of the connecting bolt 41 protruding from the other support cylinder 38 is A nut 42 that engages with the support cylinder 38 is screwed.

In this manner, the longitudinal ends of the pair of rails 33, 33 are fitted to the support cylinders 38, 38,
The connecting bolts 41 and the nuts 42 support the supporting cylinders 38, 38, that is, the first and second end supporting frames 32 ₁ ,
32 ₂ will be connected. Moreover, both ends support frame 3
By tightening and loosening the nuts 42 with the caps 37 ₁ at both ends of 2 ₁ and 32 ₂ respectively removed, the end support frames 32 ₁ and 3 of both rails 33 and 33 are removed.
It is possible to perform coupling and uncoupling with respect to 2 ₂ very easily.

Referring to FIGS. 4 and 5 together, the central support frame 34 has a pair of side plates 43, 43 formed in a trapezoidal shape that narrows as it goes upward, and the lower ends of the pair of side plates 43 are integrally connected by a bottom plate 44. U-shaped, both side plates 4
A reinforcing pipe 45 is installed between the intermediate portions of 3,43.
Moreover, an elastic material 46 for relaxing the load acting on the central support frame 34 from above is attached to the lower surface of the bottom plate 44, and the elastic material 46 contacts the floor surface 31.

On the other hand, slits 47, 47 are provided in the lower central portions in the longitudinal direction of both rails 33, 33, and the upper ends of the side plates 43, 43 in the central support frame 34 are rails from the slits 47, 47. The upper ends of the side plates 43, 43 are brought into contact with the upper portions of the inner surfaces of the rails 33, 33. In this state, the pair of rails 33, 33
Of the screw members 48, 48 screwed to the mutually opposing side surfaces of the
By being screwed onto the upper ends of the side plates 43, 43, the central portions of the rails 33, 33 in the longitudinal direction are supported by the central support frame 43. Moreover, the screw members 48, 4
Since the connection between the rails 33, 33 and the central support frame 34 is released by loosening the rail 8, the operation for connecting and disconnecting the rails 33, 33 and the central support frame 34 is extremely easy.

Referring also to FIG. 6, the movable table 35 is formed in a substantially U-shaped cross section with the lower part thereof being opened across both rails 33, 33 and rolling on one rail 33. A pair of wheels 50 ₁ and 50 ₁ and a pair of wheels 50 ₂ and 50 ₂ rolling on the other rail 33 are pivotally supported by the moving base 35 via roller bearings 51.

The inner ring 52 of the roller bearing 51 is screwed into the bolt 55 inserted from the inner side of the moving base 35 into the inner ring 52 and the side wall of the moving base 35 and the tip of the bolt 55 from the outer side of the moving base 35. It is fixed to the movable table 35 by the cap nut 56. Further, an outer ring 54 surrounding the inner ring 52 is inserted into the wheels 50 ₁ and 50 ₂ via a plurality of rollers 53. Moreover, a pair of retaining rings 57, 58 which can contact both ends of the outer ring 54 are fitted to the inner surface of _one wheel 50 ₁ so as to allow a slight movement of the wheel 50 ₁ along the axial direction. whereas, the other wheel 50 _{and second} inner surface, the wheel 50 ₂
A pair of retaining rings 57 and 58 that are in contact with both ends of the outer ring 54 are fitted so as to prevent movement of the outer ring 54 in the axial direction. That is, the wheels 5 rolling on both rails 33, 33, respectively.
One of the wheels 0 ₁ and 50 ₂ is pivotally supported on the moving base 35 so that the wheel 50 ₁ is allowed to move within a restricted range along the rotation axis thereof. Even if the parallelism of 33 is slightly deviated, smooth movement of the movable table 35 along both rails 33, 33 is guaranteed.

In FIG. 7, the restoring force generating means 36₁Is
It is made of an inelastic material and has one end connected to the movable table 35.
Main flexible rope 58₁As a rope and the movement of the moving table 35
The main flexible rope 5 has a horizontal axis orthogonal to the direction.
8₁Guides from both sides and is pivotally supported by the central support frame 34.
1st and 2nd main pulley 59₁, 60₁And the first end support frame
32₁One end is connected to the
₁Tension spring 61 as an elastic member connected to the other end of the
And the first and second main pulleys 59₁, 60₁Than tension
Main flexible rope 58 near the spring 61₁3rd main slip around which
Car 62₁And the third main pulley 62₁A solid rotatably supporting
Fixed support frame 63₁And the second end support frame 32 ₂And fixed support
Holding frame 63₁Connect between them with adjustable connection distance
And a turnbuckle 64 as a connecting mechanism.

Referring also to FIG. 8, a bracket 65 is fixed to the reinforcing pipe 45 of the central support frame 34,
The first and second main pulleys 59 ₁ and 60 ₁ are rotatably supported by the bracket 65. One end of the main flexible rope 58 ₁ has a grommet 66 attached to a substantially central portion of the movable table 35.
It is intended to be inserted into _1, by connecting the upper surface of the main flexible rope 58 ₁ to lock the end of the moving platform 35, the main flexible rope 58 ₁ of one end engaging the movable carriage 35, connected To be done. Thus, the inner surface and the end surface of the grommet 66 ₁ have the main flexible rope 5
It is formed smoothly so as not to damage 8 ₁ .

One end of the tension spring 61 has a fixed support member 67 fixed to the longitudinal middle portion of the first end support frame 32 _1.
(See FIG. 2). The main flexible rope 58 ₁
And the other end of the tension spring 61 are connected to the connecting member 68. Further, one end of a turnbuckle 64 is connected to a fixed support frame 63 ₁ which pivotally supports a third main pulley 62 _{1 around} which an intermediate portion of the main flexible rope 58 ₁ is wound, and the other end of the turnbuckle 64 is a second end. The end support frame 32 ₂ is locked and connected to the fixed support member 69 fixed to the intermediate portion in the longitudinal direction.

In the restoring force generating means 36 ₁ as described above, in its initial state, the main flexible rope 58 ₁ is brought into a tensioned state by adjusting the length by the turnbuckle 64. Thus, FIG.
As shown in (a), the movable table 35 is mounted on both rails 33, 33.
When the upper flexible rope 58 ₁ is moved to the right, the main flexible rope 58 ₁ is wound around the right of the first and second main pulleys 59 ₁ and 60 ₁ , that is, the second main pulley 60 ₁ , and the movable table 35 is moved to both rails. The tension spring 6 is moved as it moves to the right on 33, 33.
The spring force of No. 1 becomes large, and both rails 3 are
A restoring force acts toward the center side in the longitudinal direction of 3, 33. Further, as shown in FIG. 7B, when the moving table 35 moves to the left on both rails 33, 33, the main flexible rope 58 ₁ moves to the left of the first and second main sheaves 59 ₁ , 60 _1. As the movable table 35 is wound around the first main pulley 59 ₁ and the movable table 35 moves to the left on both rails 33, 33, the spring force of the tension spring 61 increases and the movable table 35 has both rails 33, 33. A restoring force acts toward the center side in the longitudinal direction of the. That is, since the spring force of the tension spring 61 acts on the movable table 35 as a restoring force when the movable table 35 is moved to the left or right side,
Restoring force from either the left or right side is always equal, so there is no need to evenly adjust the restoring force.

Moreover, when adjusting the restoring force of the restoring force generating means 36 ₁ , it is only necessary to adjust the length by the turnbuckle 64, and the restoring force can be easily adjusted.

When the main flexible rope 58 _{1 of} the restoring force generating means 36 ₁ is broken for some reason, the moving table 35 1
Since the restoring force does not act on the rails 33,
It is dangerous to be shaken in any of the longitudinal directions. Therefore, the bracket 65 of the central support frame 34, together than the first main pulley 59 ₁ first sub pulley 59 ₁ of a small diameter is pivotally supported to the first main pulley 59 ₁ coaxially, the second main pulley 6
The second sub sheave 60 ₂ having a diameter smaller than 0 ₁ is the second main sheave 60 ₁
A third sub sheave 62 ₂ having a smaller diameter than the third main sheave 62 ₁ is supported on the fixed support frame 63 ₁ coaxially with the third main sheave 62 _1.
The sub flexible cable 58 ₂ is coaxially supported by ₁ and is inserted into the grommet 66 ₂ at a position adjacent to the main flexible cable 58 _{1 so} that one end thereof is locked and connected to the upper surface of the moving table 35. It is inserted between the second auxiliary pulleys 59 ₂ and 60 ₂ . In addition, the sub flexible cable 58
₂ is wound around the third sub pulley 62 _2, and the other end of the sub flexible rope 58 ₂ is connected to the connecting member 68. This sub flexible cable 58 ₂
Is the first, second and third auxiliary pulleys 59 ₂ , 60 ₂ , 62.
By ₂ is small, respectively, located on it slightly loosened state when the main flexible rope 58 ₁ is in a tense state, in which no load is applied tensile under normal circumstances. Therefore, when the main flexible cord 58 ₁ is broken, the sub flexible cord 58 ₁ is broken.
₂ becomes a tensioned state and a restoring force can be applied to the moving table 35, and the moving table 35 is prevented from falling off the rails 33, 33, so that safety can be ensured.

Moreover, the first and second auxiliary pulleys 59₂, 60
₂Is the first and second main pulleys 59₁, 60₁Relative times with
The third auxiliary pulley is pivotally supported by the central support frame 34 so that it can roll.
62 ₂Is the third main pulley 62₁It is possible to rotate relative to
Fixed support frame 63₁Is supported by the main flexible rope 58.₁Breaks
During normal operation without interruption, each sub pulley 59₂, 6
0 ₂, 62₂Sub flexible cable 58 due to rubbing with₂Wear is extreme
It is designed not to generate force.

Incidentally, in consideration of the breakage of the tension spring 61, a plurality of tension springs 61 may be stretched in parallel between the connecting member 68 and the first end support frame 32 ₁ .

Referring also to FIG. 9, the movable table 35 includes
A pair of foot rests 71, 71 for placing the practitioner rotate and move around a horizontal first axis C ₁ along the front-back direction of the practitioner resting on the foot rests 71, 71. The platform 35 is supported so as to be rotatable about a second axis C _{2 which is} orthogonal to the moving direction of the platform 35 and the first axis C _1, and the two footrests 71, 71 are paired so as to operate in synchronization. They are connected via the mechanisms 80, 80.

A pair of support cylinders 72, 72 along the second axis C ₂ are fixed to the moving table 35 at positions spaced from each other in the longitudinal direction of both rails 33, 33. Rotational shafts 73, 73 projecting downwardly from the movable table 35 are inserted into 72 so as to be rotatable around the second axis C ₂ . Moreover, the enlarged portions 73a are provided on the upper ends of the rotating shafts 73, 73, respectively.
Thrust metals 74, 74 are interposed between 3a and the upper ends of the support cylinders 72, 72. Further, the rotating shafts 73, 73
Nuts 75 are screwed into the lower ends of the
Thrust washers 76, 76 are respectively interposed between the 5, 5 and the lower surface of the movable table 35. Therefore pivot shaft 73 and 73, the mobile base 3 the rotation of the second about the axis C ₂ as lifting while being prevented from moving along the second axis C ₂
5 will be supported.

Brackets 77, 77 sandwiching the enlarged portions 73a, 73a at the upper ends of the rotary shafts 73, 73 are provided at the lower portions of the foot rests 71, 71, respectively. A support shaft 78 along one axis C ₁ ,
78 supports the enlarged shafts 73a, 73a of the rotary shafts 73, 73. That is, the foot rests 71, 71 are supported by the movable base 35 so as to be rotatable about the first and second axes C ₁ , C ₂ .

At the upper ends of the rotary shafts 73, 73, there is a first axis C.
Intermediate portions of the overhanging arms 81, 81 projecting to both sides along ₁ are fixed, and support members 82 are integrally provided on the inner sides of both ends of the overhanging arms 81, 81. These supporting members 82 ... Are provided at both ends of the overhanging arms 81, 81 so as not to come into contact with the upper surface of the moving table 35 even when the footrests 71, 71 rotate about the first axes C ₁ , C _1. . Moreover, the lower portions of the rubber members 83 ... As the first elastic means formed in the rectangular block shape are respectively held by the respective support members 82. The upper ends of the rubber members 83 ... are the lower surfaces of the footrests 71, 71. Are abutted respectively. Thus, both footrests 71, 71 are linked and linked so as to operate in synchronization, and the footrests 71, 71 are the first
When pivoting around the axes C ₁ and C ₁ , one of the two rubber members 83, 83 ...
Due to the repulsive force due to the compression, the restoring force around the first axes C ₁ and C ₁ is applied to the foot rests 71 and 71.

Outside the respective support members 82 ..., Receiving members 84 ... Respectively facing the support members 82 are fixed on the movable table 35, and are formed in a rectangular block shape. One end of the rubber material 85 as elastic means is held by each receiving member 84, and the other end of each rubber material 85 is brought into contact with the supporting member 82. Therefore, when the footrests 71, 71 rotate about the second axes C ₂ , C ₂ , one of the pair of rubber members 85, 85 is compressed, and the repulsive force associated with the compression causes the second axis C ₂ to be compressed. ，
The restoring force around C ₂ is applied to the footrests 71, 71.

Between the foot rests 71, 71 and the movable base 35, the foot rests 71, 71 are moved to the second axis according to the rotation of the foot rests 71, 71 around the first axes C ₁ , C _1. C ₂ , C
₂ Forced interlocking means 86, 8 forcibly rotating around ₂
6 is provided.

The forcible interlocking means 86 includes a cam 87 which is detachably fixed to the movable table 35, and a roller 8 as a cam follower which is axially supported by the footrest 71 so as to follow the cam 87.
8 and. The cam 87 is positioned by the positioning member 90 fixed to the moving table 35 on the inner side of the rotating shaft 73 and fixed on the moving table 35 by the screw member 89, and the upper surface 87a of the cam 87 is It is formed to be inclined forward and downward toward the front side (right side in FIG. 5) of the practitioner placed on the platform 71. On the other hand, the roller 88 is pivotally supported by a bracket 91 provided on the lower surface of the foot rest 71.

According to such a forcible interlocking means 86, when the footrest 71 is rotated inward about the first axis C ₁ , the roller 88 rolls on the upper surface 87a of the cam 87. As shown in FIG. 10, the footrest base 71 is forcibly rotated about the second axis C ₂ and the footrest base 7 is moved.
1 is inclined so that the inside of its front end is lowered. Thus, both footrests 71, which are interlocked and connected with each other,
By providing the forcible interlocking means 86, 86 between the 71 and the movable table 35, the both footrests 71, 71 are inclined synchronously, which is effective for a beginner to practice the Wedern gliding method. is there.

By the way, such forced interlocking means 86,
The forced posture change by 86 may not be necessary for the expert, and in such a case, the screw member 89
Is loosened and the cam 87 may be removed from the moving base 35.

Also, the second axis C ₂ of the footrests 71, 17
The rotation around C ₂ may be difficult for a beginner, and in such a case, as shown in FIGS. 11 and 12, the cam 87 is removed from the moving base 35 and the foot is placed using the switching mechanism 92. The second axis C ₂ of the stands 71, 71,
The rotation around C ₂ should be restricted.

In this switching mechanism 92, a restricting member 93 which is detachably fixed to the movable table 35 by a screw member 94,
Four support members 8 fixed to the pair of rotating shafts 73, 73
It is welded and fixed to one of the two ...
By fixing the restricting member 93 on the moving base 35, the rotation of the support member 82 about the second axis C ₂ , that is, the rotation of the footrest 35 about the second axis C ₂ is restricted. Thus, the movable table 35 is provided with a screw hole 95 (see FIG. 9) for screwing the screw member 94.

Moreover, since both footrests 71, 71 are interlocked and connected, when the rotation of one footrest 71 around the second axis C ₂ is regulated by the regulating member 93, the other footrest 71 is placed. The base 71 also does not rotate around the second axis C ₂ .

An interlocking and connecting mechanism 80 for interlocking the operations of the both footrests 71, 71 about the first axis C ₁ and the second axis C ₂ is provided with a pair of connecting members extending in the longitudinal direction of the rails 33, 33. Both ends of the rod 96 are connected to both footrests 71, 71 via universal joints 97, 97.

The universal joint 97 is composed of a first joint member 98 fixed to the end of the connecting rod 96 and a second joint member 99 locked to the first joint member 98. As for the member 99, the U-shaped member 99 is fixed to the connecting member 100 hanging from the footrest 71. Moreover, the cross-sectional shapes of the first and second joint members 98 and 99 are circular, and the first joint member 98 has an inner diameter that allows the second joint member 99 to be slidably fitted and fit in a ring shape. The second joint member 99 is formed into a ring-shaped first
It is formed in a substantially U shape so as to engage with the joint member 98.

According to the interlocking and connecting mechanism 80 using the universal joint 97 as described above, one footrest 7
The movement around the first and second axes C ₁ and C _{2 of 1} can be transmitted to the foot rest 71 on the other side, and the foot rests 7
1, 71 can be operated in synchronization.

The foot rest 71 has side plate portions 71a, 71a on both sides along the moving direction of the moving stand 35 and is formed in a substantially U-shaped cross section. Is set larger than. Mats 102 for slip prevention are attached on the footrests 71, 71, respectively.
Moreover, the foot rests 71, 71 are supported by the pivot shaft 73 by the support shaft 78 at the widthwise central portions thereof.

In order to determine the position of the practitioner's foot on the foot rests 71, 71, a pair of positioning tools 103, 103 are detachably attached to the foot rests 71, 71, respectively.

The positioning tools 103, 103 are formed by fitting a cushion material 105 such as rubber into a metal case 104, and both ends of the case 104 are provided with footrests 7.
Engagement portions 104a, 104a that are elastically engaged with each other are provided at both ends of a footrest 71 along the front and back of a practitioner who is placed on the table 1.

When the pair of positioning tools 103, 103 are attached to the outer sides of the foot rests 71, 71 so that both feet are placed on the foot rests 71, 71 and a load is evenly applied, they interlock. , Both footrests 7 through the connecting mechanisms 80, 80
Since the footrests 71 and 71 are connected to each other, the footrests 71 and 71 are kept in a horizontal posture, but when weight is applied to either the left or right foot, the weight of the footrest 71 on which the weight is applied is applied. Since the center is located inward of the support shaft 78, the footrest 71 is inclined inward. This faithfully simulates the operation of raising the inner edge of the outer ski along the turning radius in a normal ski rotation operation,
It is convenient for such ski practice.

When gliding on deep snow such as fresh snow,
It is inconvenient because the foot of the person who puts the weight on the foot dives if the weight is not evenly applied to both feet. Therefore, when practicing under such a uniform load, a pair of positioning tools 103, 103 may be attached to both sides of the footrest 71, as shown in FIG. In this way, since the center of weight is located in the widthwise central portion of the footrest 71, that is, almost directly above the support shaft 78, the footrest 71 does not incline when weight is applied to either the left or the right, and both legs are not tilted. It is possible to simulate a uniform load skiing operation.

Further, unlike the usual ski operation, there is also a sophisticated ski rotation technique using the outer edge of the inner ski along the turning radius, and when practicing such technique, as shown in FIG. 14, A pair of positioning tools 1
03, 103 may be attached to the footrests 71, 71 by moving them inward. Then, when weight is applied to either the left side or the right side, the center of weight of the footrest 71 on which the weight is applied is located on the outer side of the support shaft 78. Since it slopes outwards, it is possible to simulate advanced techniques that erect the outer edge of the inner ski along the turning radius.

As described above, the positioning tools 103, 103
By selecting the mounting position on the foot rests 71, 71, it becomes possible to practice various ski rotation techniques.

By the way, when practicing with such a ski training device, it is common to practice with stocks 106, 106 as shown in FIG. It may be difficult to practice using 106, and in such a case, FIG.
, The first and second end support frames 32 ₁ , 32
It is possible to practice using the handle 107 that is detachably attached to the ₂ .

In FIGS. 17, 18, 19, and 20, the handle 107 is the first and second end support frames 3
Mounting portions 108, 108 detachably attached to 2 ₁ , 32 ₂ and the mounting portions 108, 1
The rising portion 1 that is detachably connected to 08 and extends upward
09 and 109, and a gripping portion 110 that is detachably connected to the upper ends of the compatibility raising portions 109 and 109 and extends horizontally. The first and second end support frames 32 ₁ , 3 are provided.
When it is attached to 2 ₂ , it has a substantially trapezoidal shape, and the practitioner can practice while holding the connecting portion 110.

Referring also to FIG. 21, the mounting portion 108
Is the first and second end support frames 32. ₁, 32₂At one end of
The bottomed cylindrical body 111 that can be fitted and the bottomed cylindrical body 111
A curved pipe 112, one end of which is coaxially fixed to the closed end.
It Moreover, the other end of the curved pipe 112 faces upward.
The curved surface of the floor surface 3 is curved.
The grounding part 112b which can contact 1 is provided. Also bottomed
At the opening end of the cylindrical body 111, the bottomed cylindrical body 111 is
And the second end support frame 32₁, 32₂Fitted to one end of
Is provided with an engagement notch 113 that engages with the support cylinder 38 in this state.
Be done. Therefore, the bottomed cylindrical body 111 is attached to the first and second ends.
Part support frame 32₁, 32₂Bend just by fitting it to one end of
First and second end support frames 32 of tube 112₁, 32₂To
Relative position around the axis to the other, ie other than the curved tube 12
The direction of the edge will be determined.

First and second end support frames 32 ₁ , 32 ₂
An insertion hole 114 is formed in the upper part on one end side of the, and a screw hole 116 for screwing a screw member 115 inserted into the insertion hole 114 is provided in the bottomed cylindrical body 111.
Further, an elastic cap 37 ₁ ′ that closes one end of the first and second end support frames 32 ₁ and 32 ₂ is integrally attached to the bottomed cylindrical body 111, and the screw 37 ₁ ′ is attached to the elastic cap 37 ₁ ′. with holes 117 for exposing the member 115 is provided, the floor surface 31 with first and second end support frame 32 _1, 32 of the cap 37 ₁ of ₂ of the other end side supporting surface 37 ₁ a (see FIG. 5) Is provided with a flat support surface 37 ₁ ′ a.

The rising portion 109 is composed of a tube body having the same diameter as the curved tube 112 and having both ends open, and an insertion protrusion 112 a projecting from the other end of the curved tube 112 is provided at the lower end of the rising portion 109. It can be inserted and removed. Further, the grip portion 110 is formed in a substantially U-shape that is opened downward by bending and forming a tubular body having the same diameter as the rising portion 109, and the insertion protrusions 110 are provided at both ends of the grip portion 110, respectively.
a and 110a are removably fitted to the upper ends of the compatible parts 109 and 109.

In this way, the handle 107 is removably attached to the first and second end portion support frames 32 ₁ and 32 ₂ , and, in the detached state, the pair of attachment portions 10
8, 108, a pair of rising portions 109, 109, and a single grip portion 110 can be disassembled, and a large storage space is not required.

FIG. 22 shows a second embodiment of the present invention, in which parts corresponding to those in the first embodiment are designated by the same reference numerals.

The footrests 71, 71 have an enlarged portion 73a of the rotating shaft 73 by a support shaft 78 on the outer side of the center in the width direction.
Will be supported by each. In this way, when weight is applied to either of the footrests 71, 71, the center of weight of the footrest 71 on which the weight is applied is located on the inner side of the support shaft 78. The foot rest 71 tilts inward. Therefore, the positioning tool 1 used in the first embodiment
It is possible to faithfully simulate the operation of raising the inner edge of the outer ski along the turning radius in the normal ski rotation operation without using 03.

23 to 27 show a third embodiment of the present invention. FIG. 23 is a simplified vertical sectional front view of a ski practice device, and FIG. 24 is an enlarged vertical sectional front view of a portion 24 of FIG. 25 is an enlarged sectional view of the portion 25 in FIG. 24, FIG. 26 is an operation explanatory view, and FIG. 27 is a restoring force characteristic view.

First, referring to FIG. 23, the restoring force generating means 36
Reference numeral ₂ denotes a main flexible rope 58 ₁ which is made of an inelastic material and has one end connected to the movable table 35, and is guided by the main flexible rope 58 ₁ from both sides and is pivotally supported by the bracket 65 of the central support frame 34. One end is connected to the first and second main pulleys 59 ₁ and 60 ₁ and the first end support frame 32 ₁ and the other end is the main flexible rope 5.
8 and the first tension spring 118 as a first elastic member connected to _one other end, the main flexible rope 58 ₁ third main pulley 62 ₁ to be wound, the third main pulley 62 ₁ freely rotates A second tension spring 119 as a second elastic member whose one end is connected to the movable support frame 63 _{2 which} is axially supported and the second end support frame 32 _2.
And the other end of the second tension spring 119 and the movable support frame 63.
_And a turnbuckle 64 connecting the _two with their connecting distances adjustable.

In consideration of safety when the main flexible rope 58 ₁ is broken, the bracket 65 of the central support frame 34 has first and second smaller diameters than the first and second main sheaves 59 ₁ , 60 ₁ . The two sub pulleys are coaxially and rotatably supported relative to each other, and the movable support frame 63 ₁ is coaxially and relatively rotatably supported by the third sub pulley having a diameter smaller than that of the third main pulley 62 _1. Flexible rope 5
8 ₁ sub flexible rope having one end to the moving base 35 adjacent is coupled to the, is connected with entrained in the third sub-pulley are inserted between the first and second sub-pulley to the first tension spring 118 This is the same as in the first embodiment, and the sub flexible cable is loosened.

The spring constant of the second tension spring 119 is set smaller than the spring constant of the first tension spring 118, and the central support frame 34 is provided with a regulating means 120 for regulating the moving range of the movable support frame 63 _2. It is provided.

In FIG. 24, the regulating means 120 includes a guide bolt 122 extending along the moving direction of the movable table 35 and fixed to the central support frame 34 to guide the movement of the movable support frame 63 ₂ , and a second pulling member. The guide bolt 122 is provided to regulate the moving end of the movable support frame 63 _{2 in} the direction in which the spring 119 extends.
And a restriction nut 123 that is screwed into. A support plate 121 extending along the moving direction of the moving table 35 is fixed to the central support frame 34, and one end of the support plate 121 (see FIG.
4) on the left end of the movable support frame 6 to regulate the moving end of the movable support frame 63 ₂ by the tension of the second tension spring 119.
3 ₂ capable of abutting an end plate 121a is provided integrally to the other end of the support plate 121 end plate 121b facing the end plate 121a is provided integrally. Guide bolt 122
Is provided over both end plates 121a and 121b, and a regulating nut 123 capable of contacting the movable support frame 63 ₂ is screwed to the guide bolt 122 so that the screwing position can be adjusted. The movable support frame 63 is provided on the support plate 121.
₂ is slidable, and the guide bolt 122
Penetrates the sleeve 124 provided on the movable support frame 63 ₂ so as to be relatively movable in the axial direction.

In FIG. 25, the thread 122a of the guide bolt 122 is formed in a trapezoidal shape so that the inner surface of the sleeve 124 is not caught.

According to the restoring force generating means 36 ₂ as described above, as shown in FIG. 26A, when the movable table 35 moves to the right on both rails 33, 33, the main flexible rope 58 ₁ moves to the _{first position} . 1 and the second main pulley 59 _1, 60 becomes a state of being hung right or second main pulley 60 ₁ wound of _1, the mobile base 3
The second tension spring 119 is extended as 5 moves to the right on both rails 33, 33, and the spring force of the second tension spring 119 causes the moving base 35 to move toward the center side in the longitudinal direction of both rails 33, 33. All resilience acts. When the movable support frame 63 ₂ comes into contact with the regulation nut 123 of the regulation means 120 and the movement of the movable support frame 63 ₂ is regulated, as shown in FIG.
As shown in FIG. 6 (b), the first tension spring 118 is extended, and the moving table 35 has the first tension spring 118.
The restoring force acting toward the center in the longitudinal direction of both rails 33, 33 is applied by the spring force. That is, the restoring force of the second tension spring 119 acts on the moving table 35 in the initial stage of the movement of the moving table 35 from the longitudinal center portions of the rails 33, 33, and then the restoring force of the first tension spring 118 is applied to the moving table 35. The same applies when the movable table 35 is moved in either the left or right direction. Ie the first
Since the spring force of the second tension springs 118 and 119 acts as a restoring force in cooperation with the moving table 35 when the moving table 35 is moved to either the left or right side, either the left or the right side. The restoring force from the side is always equal, and it is not necessary to adjust the restoring force evenly.

Moreover, since the spring constant of the first tension spring 118 is larger than the spring constant of the second tension spring 119, as shown in FIG. 27, in the latter half of the movement of the movable table 35 to the left and right. It is possible to obtain a two-stage restoring force characteristic in which the restoring force is strengthened. Regarding the point that the restoring force characteristic changes, the guide bolt 12 of the regulation nut 123
It suffices to adjust the screwing position with respect to 2, and it is possible to easily adjust the restoring force characteristic change position.

In addition, also in the restoring force generating means 36 ₂ , by adjusting the length by the turnbuckle 64, as shown in FIG.
As shown by the broken line, it is possible to change the restoring force to a plurality, and it is extremely easy to adjust the restoring force.

FIG. 28 shows a fourth embodiment of the present invention, and the portions corresponding to the above embodiments are designated by the same reference numerals.

The restoring force generating means 36 ₃ is made of a non-elastic material and has one end connected to the movable table 35.
₁ and the main flexible rope 58 ₁ from both sides to guide the central support frame 3
The first and second main sheaves 59 ₁ and 60 ₁ supported by the bracket 65 of No. 4 and one end are connected to the first end support frame 32 ₁ and the other end is connected to the other end of the main flexible rope 58 ₁ . A first tension spring 118 'serving as a first elastic member to be connected, a third main pulley 62 _{1 around} which a main flexible rope 58 ₁ is wound, and a third
Movable support frame 63 for rotatably supporting the main pulley 62 _1.
3 , a second tension spring 119 ′ as a second elastic member whose one end is coupled to the second end support frame 32 ₂ , and the other end of the second tension spring 119 ′ and the movable support frame 63 ₃ are coupled to each other. And a turnbuckle 64 for adjustable distance connection.

The spring constant of the first tension spring 118 'is the second
It is set to be smaller than the spring constant of the tension spring 119 ', and the central support frame 34 comes into contact with a stopper 125 provided at one end of the first tension spring 119' so that one end of the first tension spring 118 'moves. Means 12 for regulating
0'is provided.

The restricting means 120 'is formed by screwing a screw rod 127 on a support 126 fixed to the central support frame 34 so that the position along the moving direction of the moving table 35 can be freely adjusted. , The first tension spring 1 of this screw rod 127
A regulating plate 128 that can contact the stopper 125 is provided at the end portion on the 18 'side.

[0072] According to the restoring force generation means 36 _3, the mobile platform 35 is left on both rails 33 and 33 from the longitudinal center portion, as it moves to the right, first the first tension spring 118 'is extended, moving Due to the spring force of the first tension spring 118 ', a restoring force is applied to the table 35 in the longitudinal direction of both rails 33, 33 toward the center side. When the stopper 125 comes into contact with the regulation plate 128 and the extension of the first tension spring 118 'is regulated, the second tension spring 119' is subsequently extended, and the second movement of the movable table 35 is reduced by the second tension spring 119 '. Due to the spring force of the tension spring 119 ', a restoring force acts on both rails 33, 33 in the longitudinal direction toward the center side. That is, the restoring force of the first tension spring 118 'acts on the moving table 35 in the initial stage of the movement of the moving table 35 from the longitudinal center portions of both rails 33, 33, and then the restoring force of the second tension spring 119' moves. It comes to act on the table 35.

Moreover, since the spring constant of the second tension spring 119 'is larger than that of the first tension spring 118', the restoring force becomes stronger in the latter half of the movement of the movable table 35 to the left and right. Thus, the two-stage restoring force characteristic can be obtained. Regarding the point at which the restoring force characteristic changes, the screwing position of the screw rod 127 to the support 126 may be adjusted, and the changing position of the restoring force characteristic can be easily adjusted.

29 and 30 show a fifth embodiment of the present invention. FIG. 29 is an enlarged sectional view of an essential part of an end support frame, and FIG. 30 is an end support frame with a handle attached. FIG.

First, in FIG. 9, a pair of support cylinders 38 fixed to the first and second end support frames 32 ₁ and 32 ₂ respectively are paired along the axis of both end support frames 32 ₁ and 32 _2. Through holes 39, 39 are formed. Further, at the end portions of the rails 33 fitted into the respective support cylinders 38, ..., Outer insertion holes 40 along the axis lines of the respective end support frames 32 ₁ and 32 ₂ and on the inner side along the axis lines. Screw holes 40 'are formed so as to be coaxial with the insertion holes 39, 39 of the support cylinder 38 when the ends of the rails 33 are fitted into the support cylinder 38.

Thus, the connecting bolt 41 'which is inserted into the insertion holes 39, 40 from the outer side of the end support frames 32 ₁ , 32 _2.
Is screwed into the screw hole 40 ', and by tightening the connecting bolt 41', the end of the rail 33 is connected to the support tube 38 without rattling in the support tube 38. Moreover, by tightening and loosening the connecting bolts 41 'with the caps 37 ₁ at both ends of the both end support frames 32 ₁ , 32 ₂ respectively removed, the end support frames 32 ₁ , Connection and disconnection to 32 ₂ can be performed very easily.

At both ends of the support frames 32 ₁ and 32 ₂ at both ends,
A support member 130 made of hard rubber or the like is attached, and a flat support surface 130a that is in close contact with the floor surface 31 is provided below the support member 130.

The supporting member 130 includes an end supporting frame 3
An inner fitting hole 131 into which the axial ends of 2 ₁ and 32 ₂ are fitted and an outer mounting hole 132 having a larger diameter than the fitting hole 131 are coaxial with each other via a step 133. It is provided in. Moreover, on the inner surface of the fitting hole 131, the end support frames 32 ₁ , 32
An annular engagement protrusion 134 that engages with an annular locking groove 135 provided on the outer surface of the axial end portion of ₂ is projected. Thus, the end support frames 32 ₁ and 32 ₂ are fitted into the fitting holes 131 until the end faces thereof are flush with the step 133, and in that state, the engagement projections 134 are engaged with the locking grooves 135. By doing so, the support member 130 is attached to the ends of the end support frames 32 ₁ and 32 ₂ .

[0079] the mounting hole 132 of the support member 130, which open end of the cap 37 ₂ is formed in a bowl shape is fitted until it abuts against the stepped portion 133, the cap 37 ₂
An annular engagement protrusion 137 is elastically engaged with an annular engagement groove 136 provided on the inner surface of the mounting hole 132 so as to protrude from the outer surface of the opening end of the. Therefore, by engaging the engaging projection 137 with the locking groove 136 and fitting the cap 37 ₂ into the mounting hole 132, the end support frames 32 ₁ , 32
The axial end of ₂ will be closed and the cap 37
₂ is bent to release the engagement of the engaging projection 137 with the locking groove 136, so that the cap 37 ₂ is supported.
It is easy to remove from 0.

Corresponding to the above-mentioned structure at the ends of the end support frames 32 ₁ and 32 ₂ , the mounting portion 108 'of the handle 107 is constructed as shown in FIG. That is, the mounting portion 108 ′ includes the support frames 32 ₁ , 32 _{2 at} both ends.
A cylindrical body 140 that can be fitted to the end of the cylindrical body 140, a disk-shaped closing plate 141 fixed to the outer end of the cylindrical body 140, and a cylindrical body 140.
And a curved tube 112 coaxially fixed to the closing plate 141. At the open end of the cylindrical body 140, the cylindrical body 140
Engagement notch 114 that engages with the support cylinder 38 in a relatively non-rotatable manner with the ends fitted to the ends of the support frames 32 ₁ and 32 _2.
2 W is provided. Therefore, by simply fitting the cylindrical body 140 into the ends of the support frames 32 ₁ and 32 ₂ at both ends, the curved tube 1
The relative position around the axis of the first and second end support frames 32 ₁ , 32 ₂ of 12 is determined.

The outer diameter of the closing plate 141 is the same as that of the support member 13.
It is set to such an extent that it can be fitted into the mounting hole 132 of the support member 13 on the outer periphery of the closing plate 141.
An engaging portion 143 that engages with the locking groove 136 of 0 is formed. Therefore, the cylindrical body 140 is attached to both end support frames 32 ₁ , 3
Only fits into 2 _second end, 'as well as the relative position about the axis relative to the end support frame 32 _1, 32 ₂ are determined, the attachment portion 108' mounting portion 108 ends the support frame 3
The state of attachment to 2 ₁ and 32 ₂ is elastically retained.

FIG. 31 shows a sixth embodiment of the present invention. The restoring force generating means 36 ₁ and the third embodiment in the first embodiment are shown.
In the restoring force generating means 36 ₂ in the embodiment and the restoring force generating means 36 ₃ in the fourth embodiment, the first main pulley 59 ₁ and the first sub pulley 59 ₂ are formed integrally with each other with the same diameter. However, the second main pulley 60 ₁ and the second sub pulley 60 ₂ , and the third main pulley 62 ₁ and the third sub pulley 62 ₂ are also integrally formed with the same diameter.

[0083] For Thus to first main pulley 59 ₁ and the second main pulley 60 third main pulley 62 ₁ wound main flexible rope 58 ₁ exerted while being inserted between ₁ and that is in tension, the first sub-pulley 59 ₂ and the second third sub flexible cord 58 to be multiplied secondary pulley 62 ₂ wound while being inserted between the secondary sheave 60 _2
2 is in a slightly slackened state because its length is set to be slightly longer than that of the main flexible rope 58 ₁ . In this case, it is desirable to color-code the main flexible cord 58 ₁ and the sub flexible cord 58 ₂ in order to ensure mutual identification.

According to this sixth embodiment, the first main pulley 59
₁ and 1st sub sheave 59 ₂ , 2nd main sheave 60 ₁ and 2nd sub sheave 60 ₂ , and 3rd main sheave 62 ₁ and 3rd
Since the sub pulley 62 ₂ rotates integrally, noise and abrasion are generated when the adjacent pulleys rub against each other when they rotate relative to each other, but such noise and abrasion are prevented from occurring.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible to do.

[0086]

As described above, according to the first aspect of the present invention, the pair of end portions of both rails are fitted to the end portion support frame which is closed by the caps which can be opened and closed in the longitudinal direction. The support cylinder is fixed, and both support cylinders and the ends of both rails are detachably connected by a connecting bolt along the longitudinal direction of the end support frame. To release it, just operate the connecting bolt.
The attachment / detachment operation is easy, and the brackets required in the past are not required, which can contribute to the reduction of the number of parts.

According to the invention described in claim 2, in addition to the structure of the invention described in claim 1, a wheel capable of rolling on one rail and a wheel capable of rolling on the other rail. However, since it can be moved within a restricted range along the rotation axis of at least one of those wheels and is attached to the moving base, smooth movement of the moving base can be achieved even if the parallelism of both rails is slightly deviated. Can be guaranteed.

According to the third aspect of the present invention, in addition to the structure of the first or second aspect of the present invention, both ends of the handle gripped by the practitioner are engaged with one of both support cylinders. Since the attachment portion fitted to one end of the end support frame is provided, the handle required for a beginner who is difficult to practice with stock can be attached to the end support frame very easily.

Further, according to the invention of claim 4, in addition to the structure of the invention of claim 3, the handle is composed of a plurality of members that can be connected and disconnected from each other.
When the handle is not used, the handle can be compactly packed, and the storage space is small.

[Brief description of drawings]

FIG. 1 is a front view of a ski training device according to a first embodiment of the present invention.

FIG. 2 is a view on arrow 2 of FIG.

FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is an enlarged view of part 4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is a diagram illustrating the structure and action of reaction force generating means.

8 is a sectional view taken along line 8-8 of FIG.

9 is a sectional view taken along line 9-9 of FIG.

FIG. 10 is a diagram for explaining the operation of the interlocking device.

11 is a cross-sectional view corresponding to FIG. 4 in a state in which the rotation of the footrest around the second axis is restricted.

12 is a sectional view taken along line 12-12 of FIG.

13 is a cross-sectional view corresponding to FIG. 4 in a state in which the mounting position of the positioning tool on the foot rest is changed.

FIG. 14 is a cross-sectional view corresponding to FIG. 4 in a state where the mounting position of the positioning tool on the foot rest is further changed.

FIG. 15 is a front view showing a practice state using a stock.

FIG. 16 is a front view showing a practice state using a handle.

FIG. 17 is a front view of the ski practice device with a handle attached.

18 is a view on arrow 18 of FIG.

FIG. 19 is a side view of the handle.

20 is a view on arrow 20 of FIG.

21 is an enlarged cross-sectional view taken along line 21-21 of FIG.

22 is a front view corresponding to FIG. 4 of the second embodiment of the present invention. FIG.

FIG. 23 is a simplified vertical sectional front view of the ski practice device according to the third embodiment of the present invention.

FIG. 24 is an enlarged vertical sectional front view of the 24th portion of FIG. 23.

FIG. 25 is an enlarged cross-sectional view of section 25 of FIG. 24.

FIG. 26 is an operation explanatory view.

FIG. 27 is a restoring force characteristic diagram.

FIG. 28 is a simplified vertical sectional front view of the ski practice device according to the fourth embodiment of the present invention.

FIG. 29 is an enlarged sectional view of an essential part of an end support frame of a fifth embodiment of the present invention.

FIG. 30 is a cross-sectional view corresponding to FIG. 29 with a handle attached.

FIG. 31 is a vertical sectional view of a main pulley and a sub pulley according to a sixth embodiment of the present invention.

[Explanation of symbols]

31 ... Floor surface 32 ₁ , 32 ₂ …… End support frame 33 …… Rail 35 …… Moving stand 37 ₁ , 37 ₂ …… Cap 38 …… Support tube 39, 40 …… Insertion hole 41, 41 ′ ... ... Connecting bolts 50 ₁ , 50 ₂ ... Wheels 107 ... Handles 108, 108 '... Attachment parts

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 17, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

1 to 21 show a first embodiment of the present invention. FIG. 1 is a front view of a ski practice device, and FIG.
1 is a view taken in the direction of arrow 2 in FIG. 1, FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.
4 is an enlarged view of part 4 of FIG. 1, FIG. 5 is a sectional view taken along line 5-5 of FIG. 4, FIG. 6 is a sectional view taken along line 6-6 of FIG. 4, and FIG. 7 describes the structure and action of the restoring force generating means. FIG. 8, FIG. 8 is 8-8 of FIG.
9 is a sectional view taken along line 9-9 of FIG. 4, FIG. 10 is a view for explaining the action of the interlocking means, and FIG. 11 is a second footrest base.
A sectional view corresponding to FIG. 4 in a state in which the rotation around the axis is regulated, FIG. 12 is a sectional view taken along line 12-12 in FIG. 11, and FIG. 13 is a state in which the mounting position of the positioning tool on the footrest is changed. 4 is a sectional view corresponding to FIG. 4, FIG. 14 is a sectional view corresponding to FIG. 4 in a state in which the mounting position of the positioning tool on the footrest is further changed, and FIG. 15 is a front view showing a practice state using a stock, 16 is a front view showing a practice state using the handle, FIG. 17 is a front view of the ski practice device with the handle attached, FIG. 18 is a view as seen from the arrow 18 in FIG. 17, FIG. 19 is a side view of the handle, and FIG. 20 is a view taken in the direction of arrow 20 in FIG. 19, and FIG. 21 is an enlarged sectional view taken along line 21-21 of FIG.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction content]

The inner ring 52 of the roller bearing 51 is screwed from the inner side of the moving base 35 to the bolt 55 inserted through the inner ring 52 and the side wall of the moving base 35, and the tip of the bolt 55 from the outer side of the moving base 35. It is fixed to the movable table 35 by the cap nut 56. Further, an outer ring 54 surrounding the inner ring 52 is inserted into the wheels 50 ₁ and 50 ₂ via a plurality of rollers 53. Moreover the one wheel 50 ₁ of the inner surface, the retaining ring 57,5 7 ends to a pair of possible contact of the outer ring 54 is fitted so as to permit a slight movement along the axial direction of the wheel 50 ₁ that whereas, in the other wheel 50 _{and second} inner surface, the wheel 50 ₂
A pair of retaining ring 57,5 7 in contact with the opposite ends of the outer ring 54 is fitted so as to prevent movement along the axial direction. That is, the wheels 5 rolling on both rails 33, 33, respectively.
One of the wheels 0 ₁ and 50 ₂ is pivotally supported on the moving base 35 so that the wheel 50 ₁ is allowed to move within a restricted range along the rotation axis thereof. Even if the parallelism of 33 is slightly deviated, smooth movement of the movable table 35 along both rails 33, 33 is guaranteed.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction content]

Incidentally, when practicing with such a ski practice device, it is general to practice with the stocks 106, 106 as shown in FIG. 15, but for beginners, the stocks 106, 106 are used. It may be difficult to practice with, and in such a case, FIG.
, The first and second end support frames 32 ₁ , 32
It is possible to practice using the handle 107 that is detachably attached to the ₂ .

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

FIG. 7 is a diagram for explaining the structure and operation of the restoring force generating means.

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (4)

[Claims] 1. A pair of end support frames (32 ₁ , 32 ₂ ) formed in a tubular shape and placed on the floor surface (31) at a distance from each other and having an arc shape bulging upward. Both ends of a pair of rails (33) formed on the rail are detachably connected to each other, and a moving table (35) capable of moving a trainee on both rails (33) is a long side of both rails (33). In the ski practice device that is biased toward the center side in the direction, both rails are attached to the end support frames (32 ₁ , 32 ₂ ) that are closed by caps (37 ₁ , 37 ₂ ) that can be opened and closed in the longitudinal direction. A pair of support cylinders (38) into which the ends of (33) are fitted are fixed, and both support cylinders (38) and both rails (3) are fixed.
The ski practice device is characterized in that the end portions of 3) are detachably connected by connecting bolts (41, 41 ') along the longitudinal direction of the end support frames (32 ₁ , 32 ₂ ). 2. A wheel (50 ₁ ) rollable on one rail (33) and a wheel (50 ₂ ) rollable on the other rail (33) are those wheels (50 _1). , 50 ₂ )
The ski training device according to claim 1, wherein the ski training device is attached to a movable table (35) so as to be movable within a restricted range along at least one (50 ₁ ) of the rotational axes. 3. A handle (107) grasped by a practitioner.
Mounting portions (108, 108 ') that are non-rotatably engaged with one of the support cylinders (38) and are fitted to one ends of the end support frames (32 ₁ , 32 ₂ ) are provided at both ends of the. The ski practice device according to claim 1 or 2, characterized in that. 4. The ski practice device of claim 3, wherein the handle (107) comprises a plurality of members that can be connected and disconnected from each other.