JPH06134060A - Skiing training device - Google Patents

Abstract

PURPOSE:To equalize right and left restoring forces always in a skiing training device wherein the restoring forces toward the longitudinal center sides of both rails are applied on movable moving boards on a pair of rails. CONSTITUTION:A restoring force generating means 361 is provided with a flexible rope 581 whose one end is connected to a moving board 35, first and second pulleys 591, 601 journaled by the use of a center supporting frame 34 after quiding the flexible rope 581 from both sides, an elastic member 61 whose one end is connected to a fixed supporting member 67 on one end supporting frame 321 side and another end is connected to another end of the flexible rope 581, while a third pulley 621 journaled by the use of a fixed supporting frame 631 on another end portion supporting frame 322 side, and around which the flexible rope 581 is wound.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a pair of end support frames,
A pair of rails that are formed in an arc shape that swells upward and that have both ends connected to the support frames,
A center support frame that supports the central part of both rails in the longitudinal direction and is placed on the floor surface, a movable table that can be moved on both rails by placing a trainee, and toward the center side in the longitudinal direction of both rails. And a restoring force generating means for giving the restoring force to the moving table.

[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]

SUMMARY OF THE INVENTION In the above conventional one,
Flexible elastic members such as rubber are provided between the movable table and the support frames at both ends, and when the movable table moves on a pair of rails, one of the elastic members is tensioned and the other is loosened. By this, the restoring force toward the central portion in the longitudinal direction of both rails is applied to the movable table. Therefore, in order to equalize the restoring force of the moving table along the rails to the left and right, the elastic forces of both elastic members need to be set uniformly, and the adjustment is complicated.

The present invention has been made in view of the above circumstances, and provides a ski training device in which the restoring force from either the left side or the right side toward the longitudinal center of both rails is equalized. The purpose is to do.

[0005]

In order to achieve the above object, according to the invention of claim 1, the restoring force generating means comprises:
A flexible cable which is made of an inelastic material and has one end connected to a movable table, first and second pulleys pivotally supported by a central support frame to guide the flexible cable from both sides, and one end support. An elastic member, one end of which is connected to the frame-side fixed support member and the other end of which is connected to the other end of the flexible cable, and the other end support frame-side fixed support frame that is pivotally supported and flexible. A third pulley around which the rope is wound.

According to a second aspect of the invention, in addition to the structure of the first aspect of the invention, the fixed support frame is connected to the other end support frame through a connection mechanism capable of adjusting the connection distance. Be connected.

According to the third aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, the main flexible cord for connecting the movable base and the elastic member in a tensioned state includes the first and the first flexible cords. The auxiliary flexible ropes, which are guided from both sides by the two main pulleys and are wound around the third main pulley and which connect the movable table and the elastic member in a loose state, are coaxial with the first and second main pulleys, respectively. It is guided from both sides by first and second sub-pulleys pivotally supported by the central support frame, and is wound around a third sub-pulley that is coaxially supported by the fixed support frame coaxially with the third main pulley.

According to the fourth aspect of the present invention, the restoring force generating means is made of an inelastic material, and one end thereof is connected to the movable base, and the central supporting member is provided to guide the flexible cord from both sides. First and second pulleys pivotally supported by the frame, and a first elastic member having one end connected to a fixed support member on one end support frame side and the other end connected to the other end of the flexible cable. A third pulley around which the flexible cable is wound, a movable support frame that rotatably supports the third pulley, one end of which is connected to the fixed support member on the other end support frame side, and the other end of which is A second elastic member connected to the movable support frame.

According to the invention described in claim 5, in addition to the structure of the invention described in claim 4, the movable support frame is connected to the second elastic member via a connection mechanism capable of adjusting the connection distance. .

According to the invention of claim 6, in addition to the structure of the invention of claim 4 or 5, the spring constant of the second elastic member is set smaller than the spring constant of the first elastic member, and The support frame is provided with restriction means for restricting the moving range of the movable support frame.

According to the invention of claim 7, in addition to the configuration of the invention of claim 4 or 5, the spring constant of the first elastic member is set smaller than the spring constant of the second elastic member, and The support frame is provided with restriction means for restricting the movement range of one end of the first elastic member.

According to the invention described in claim 8, in addition to the structure of the invention described in claim 4, 5, 6 or 7, the main flexible cord for connecting the movable base and the first elastic member in a tensioned state. Is guided from both sides by the first and second main sheaves and is wrapped around the third main sheave, and the sub-flexible ropes that connect the movable table and the first elastic member in a loose state are Two
A third sub sheave that is guided from both sides by first and second sub sheaves that are coaxially supported by the central support frame and coaxial with the main sheave, and that is pivotally supported by the movable support frame that is coaxial with the third main sheave. Wrapped around.

According to the ninth aspect of the present invention, the restoring force generating means includes an elastic belt, one end of which is connected to the moving base and the other end of which is connected to the fixed support member on the one end support frame side. A first pulley and a second pulley which are pivotally supported by a central support frame to guide the elastic belt from both sides, and a third pulley which is pivotally supported by a fixed support frame on the other end support frame side and around which the elastic belt is wound. And a pulley.

According to a tenth aspect of the invention, in addition to the configuration of the ninth aspect of the invention, a main elastic belt for connecting the movable table and the fixed support member and a longer elastic belt are formed. An auxiliary elastic belt that connects the movable table and the fixed support member is guided from both sides by the first and second pulleys and wound around the third pulley.

[0015]

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

1 to 23 show a first embodiment of the present invention. FIG. 1 is a front view of a ski training device with a cover removed, and FIG. 2 is a view taken in the direction of arrow 2 of FIG. FIG. 3 shows FIG.
5 is an enlarged sectional view taken along line 3-3 of FIG. 4, FIG. 4 is an enlarged view of part 4 in 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, FIG. 7 is a view for explaining the structure and action of the restoring force generating means, and FIG. 8 is a line 8-8 of FIG. Sectional view, FIG. 9 is 9-9 of FIG.
FIG. 10 is a sectional view taken along the line, and FIG.
11 is a sectional view corresponding to FIG. 4 in a state in which the rotation of the footrest around the second axis is restricted, and FIG. 12 is 12-1 of FIG.
14 is a sectional view taken along line 2; FIG. 13 is a sectional view corresponding to FIG. 4 in 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 in a state in which the mounting position of the positioning tool on the foot rest is further changed, FIG. 15 is a side view of the cover, FIG. 16 is a view on arrow 16 of FIG. 15, and FIG. 17- 17 line view, FIG. 18 is a front view showing a practice state using a stock, FIG. 19 is a front view showing a practice state using a handle, FIG. 23 is a side view of the handle, FIG. 22 is a view taken in the direction of arrow 22 in FIG. 21, and FIG.
FIG. 23 is an enlarged sectional view taken along line 23-23 of FIG. 20.

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. 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.

Moreover, if the operator accidentally steps between the rails 33, 33, the movable table 35 collides, which is dangerous.
As shown by the chain line in FIG. 2, between the rails 33, 33,
The covers 22 ₁ and 2 covering the main part of the restoring force generating means 36 ₁
2 ₂ is arranged to allow the movement of the movable table 35.

In FIG. 3, both rails 33, 33 are made by bending a metal pipe so that both end support frames 32 are bent.
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 the both-end support frames 32 ₁ and 32 ₂ are closed by openable and closable elastic caps 37.

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.

The support cylinders 38, which are respectively fixed to the support frames 32 ₁ and 32 ₂ at both ends, in pairs, have support frames 32 at both ends.
_A pair of insertion holes 39, 39 are formed along the axes of ₁ , 32 ₂ . 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.

A connecting bolt 41 inserted into the insertion holes 39, 40 from the outer side of the end supporting frames 32 ₁ , 32 ₂ is screwed into the screw hole 40 ′, and the connecting bolt 41 is tightened. The end of the rail 33 is connected to the support cylinder 38 without rattling in the support cylinder 38.

At both ends of the support frames 32 ₁ and 32 ₂ at both ends,
Cylindrical support members 28 made of hard rubber or the like are attached by elastic engagement, respectively.
A flat support surface 28a (see FIG. 1) that is in close contact with the floor surface 31 is provided in the lower part of the. The open end of the cap 37 is fitted to the outer end of the support member 28, and the fitted state is elastically maintained.

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 toward the upper side. 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 both side plates 43, 43 of the central support frame 34 are rails from these 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 34. 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 from the inner side of the moving base 35 to the bolt 55 inserted 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, 57 that 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, 57 abutting against both ends of the outer ring 54 are fitted so as to prevent movement of the outer ring 54 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.

In FIG. 7, the restoring force generating means 36 ₁ is
And rope as the main flexible ropes 58 ₁ end with made of non-elastic material is connected to the moving platform 35, the main flexible rope which has a horizontal axis perpendicular to the moving direction of the moving table 35 5
The first and second main sheaves 59 ₁ and 60 ₁ which are guided by 8 ₁ from both sides and are axially supported by the central support frame 34, and one end of which is connected to the first end support frame 32 ₁ and the other end of which is main. Flexible rope 58
A pair of tension springs 61, 61 as an elastic member connected to _one other end, the first and second main pulleys 59 _1, 60 ₁
A third main pulley 62 _{1 around} which the main flexible rope 58 ₁ is wound closer to the tension springs 61, 61 than the tension springs 61, a fixed support frame 63 ₁ rotatably supporting the third main pulley 62 ₁ , and a second end. The turnbuckle 6 as a connecting mechanism for connecting the part support frame 32 ₂ and the fixed support frame 63 ₁ with their connection distances adjustable.
It consists of 4 and.

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 ends of both tension springs 61, 61 are locked and connected to a fixed support member 67 (see FIG. 2) fixed to the middle portion of the first end support frame 32 _{1 in} the longitudinal direction. The other end of the main flexible rope 58 _{1 and} the other ends of the tension springs 61, 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.
The other end of the turnbuckle 64 is locked to a fixed support member 69 fixed to the middle portion in the longitudinal direction of the second end support frame 32 ₂ .
Be connected.

In the restoring force generating means 36 ₁ as described above, in its initial state, the main flexible rope 58 ₁ is put in 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 1, 61 increases and a restoring force acts on the movable table 35 toward the center side along the longitudinal direction of both rails 33, 33. In addition, as shown in FIG.
When the vehicle moves to the left on both rails 33, 33, the main flexible rope 58 ₁ is wound around the left of the first and second main sheaves 59 ₁ , 60 ₁ , that is, the first main sheave 59 ₁ . As the moving table 35 moves to the left on both rails 33, 33, the spring force of the tension springs 61, 61 increases, and the moving table 35 restores toward the center side along the longitudinal direction of both rails 33, 33. The force will act. That is, since the spring force of the tension spring 61 acts on the moving table 35 as a restoring force when the moving table 35 moves to either the left or right side, the restoring force from either the left side or the right side is always equal. Therefore, it is not necessary 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.

By the way, the restoring force generating means 36₁The main flex of
Rope 58₁Is broken for some reason, the moving table 35
Since the restoring force does not act on the rails 33,
Being shaken in either of the longitudinal direction of the
It Therefore, the bracket 65 of the central support frame 34 is
1 main pulley 59₁The first auxiliary pulley 59 having the same diameter as and integrated with₁Is the same
The second main pulley 60 is supported by the shaft.₁Same diameter as
Integrated second sub-pulley 60₂Is supported coaxially, and fixed support frame
63₁The third main pulley 62₁Third sub that has the same diameter and is integral with
Pulley 62₂Is coaxially supported, and the main flexible cord 58₁Adjacent to
Grommet 66 in the open position₂On the moving table 35
Sub flexible cable 58 whose one end is locked and connected to the surface ₂Is the first and
And second vice pulley 59₂, 60₂Inserted in between. Also acceptable
Flexor 58₂Is the third sub pulley 62₂Wrapped around the sub flexible cable
58₂The other end of is connected to the connecting member 68. This sub-flexibility
Rope 58₂The length of the main flexible cord 58₁Slightly longer than
It is set, and the main flexible rope 58₁Is nervous
Is slightly slack when the
Tensile load does not act. Therefore the main flexible rope
58₁When the cable breaks, the sub flexible cable 58₂Is nervous
It becomes possible to give a restoring force to the moving table 35,
Preventing the stand 35 from falling off the rails 33, 33
It is possible to secure safety.

At this time, the main flexible rope 58 ₁ and the sub flexible rope 5
It is desirable that 8 ₂ be color-coded to ensure mutual identification.

The first main pulley 59 ₁ and the first sub pulley 5 1
9 ₂ , the second main pulley 60 ₁ and the second sub-pulley 50 ₂ , and the third main pulley 62 ₁ and the third sub-pulley 62 ₂ rotate integrally, so that when they rotate relative to each other, when the adjacent pulleys rub against each other. Noise and wear, whereas the occurrence of such noise and wear is prevented.

By the way, as shown in FIG. 5 and FIG.
An elastic material 103 is attached to a lower portion of the reinforcing pipe 45. The elastic material 103 prevents both tension springs 61, 61 from directly contacting the reinforcing pipe 45 during expansion and contraction of the elastic material and generating an abnormal noise. To do. Further, the bottom plate 44 of the central support frame 34 includes the support plate 1 extending toward the first end support frame 32 ₁ side.
The base end of 04 is fixed, and in order to prevent the generation of abnormal noise by directly contacting the floor surface 31 when the tension springs 61, 61 contract on both upper and lower surfaces of the support plate 104. The elastic material 105 is attached.

Referring to FIG. 9 together, 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 the 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 bottom 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, the 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 formed in a rectangular block shape are held by the respective support members 82.
The upper ends of the rubber members 83 ... Abut on the lower surfaces of the footrests 71, 71, respectively. Thus, both footrests 71, 71
Are linked and linked so as to operate in synchronization, and when the footrests 71, 71 rotate around the first axes C ₁ , C ₁ , two pairs of rubber materials 83, Any one of the sets 83 ... Is compressed, and the restoring force around the first axes C ₁ , C ₁ is restored by the repulsive force associated with the compression.
1,71 will be given.

Outer than the supporting members 82 ..., Receiving members 84, which face the supporting members 82, are fixed on the moving table 35, and are formed in a rectangular block-shaped rubber material. One end of each of the rubber members 85 is held by each receiving member 84, and the other end of each rubber member 85 is supported by the supporting members 82.
Are abutted respectively. Therefore, the footrests 71, 7
When 1 rotates about the second axes C ₂ and C ₂ , one of the pair of rubber members 85 and 85 is compressed, and the repulsive force associated with the compression causes the restoring force about the second axes C ₂ and C _2. Will be given to the foot rests 71, 71.

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

The forced interlocking means 86 includes a cam 87 detachably fixed to the movable table 35, and a roller 8 as a cam follower 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 forced interlocking means 86, when the footrest 71 is rotated inwardly 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 moving table 35 by a screw member 94 is provided.
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 about 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 two 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. The member 99 is fixed to the connecting member 100 that is hung 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. Formed,
The second joint member 99 is formed in a substantially U-shape so as to engage with the ring-shaped first joint member 98.

According to the interlocking and connecting mechanism 80 using such a universal joint 97, one of the footrests 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 114, 114 are detachably attached to the foot rests 71, 71, respectively.

The positioning tools 114, 114 are formed by fitting a cushion material 116 such as rubber into a metal case 115, and both ends of the case 115 are provided with a foot rest 7.
Engagement portions 115a, 115a that are elastically engaged with each other are provided at both ends of a footrest 71 along the front and back of the practitioner who is placed on the table 1.

When the pair of positioning tools 114, 114 are mounted close to the outer sides of the foot rests 71, 71 and 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 sliding 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 114, 114 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 right side, It is possible to simulate a uniform load skiing operation.

Further, unlike ordinary 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
It suffices to attach 14 and 114 to the inner sides of the footrests 71 and 71 so as to be closer to each other. 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 114, 114
By selecting the mounting position on the foot rests 71, 71, it becomes possible to practice various ski rotation techniques.

By the way, in the restoring force generating means 36 ₁ , the main flexible ropes 58 ₁ drawn out from between the first main pulley 59 ₁ and the second main pulley 60 ₁ which are pivotally supported by the bracket 65 of the central support frame 34, And the first auxiliary pulley 59 ₂ and the second
The sub flexible cable 58 ₂ drawn out from between the sub pulleys 60 ₂ only travels left and right according to the movement of the moving base 35 to the left and right, and the main flexible cable 58 ₁ is always in a tensioned state. There also secondary flexible because search 58 ₂ is in a state that slightly loose, the main flexible first main pulley 59 ₁ and the second main pulley 60 ₁ chords 58 ₁
Portion drawn from between, and be closed between two rails 33, 33 at lower than the portion withdrawn from the secondary first flexible cord 58 ₂ sub pulleys 59 ₂ and the second auxiliary pulley 60 between ₂ at least partly both It does not hinder the running of the flexible ropes 58 ₁ and 58 ₂ .

Therefore, between the support frames 32 ₁ and 32 _{2 at} both ends and the central support frame 34, the first main pulley 59 of the main and auxiliary flexible ropes 58 ₁ and 58 ₂ according to the movement of the movable table 35 is provided. _The cover 2 that closes the central portion between the rails 33, 33 below the portions drawn out between the _first and second main sheaves 60 _{1 and} between the first sub sheave 59 ₂ and the second sub sheave 60 ₂ , respectively.
2 ₁ , 22 ₂ are provided, and these covers 22 ₁ , 22
₂ covers the main part of the restoring force generating means 36 ₁ .

Both the covers 22 ₁ and 22 ₂ have basically the same structure. The structure of _one cover 22 ₁ will be described in detail below with reference to FIGS. 15 to 17.
Corresponding portions of the other cover 22 ₂ are shown with the same reference numerals.

15 to 17, the cover 22
_{The reference} numeral ₁ denotes a pair of side plates 106, 106 that extend vertically and have a substantially U-shaped cross-sectional shape that opens downward and is formed of synthetic resin, for example.
6, 016 has an upper plate 107 integrally connecting the upper ends thereof, and the side plates 106, 106 and the upper plate 107 are smoothly curved and continuously connected.

The cover 22 ₁ has a central support frame 34,
Are those provided across between the first end support frame 32 _1, the spacing between the side plates 106, 106 is narrower is set than side plates 43, 43 mutual spacing in the central support frame 34, Mari side plates 106, 106 are formed so as to be gradually higher toward one end side in the longitudinal direction.

Thus, at one end of the cover 22 ₁ , both side plates 106, 106 are placed on the bottom plate 44 of the central support frame 34. On the other hand, between the bottom plate 44 of the central support frame 34 and the reinforcing pipe 45, the pair of support plates 11 having a gap larger than the gap between the side plates 106, 106 therebetween.
2, 112 are provided as shown in FIG. 5, and elastic materials 113 such as rubber are attached to the surfaces of the support plates 112, 112 facing each other. Thus, the two side plates 106, 106 on one end side of the cover 22 ₁ are made of the elastic material 11
Both support plates 11 so that their outer surfaces are closely contacted with
It is fitted between 2, 112. Moreover, at one end of the cover 22 ₁ , the upper plate 107 has a first main pulley 59 ₁ and a plate 1 sub pulley 59 ₂ which are pivotally supported by the bracket 65, and a second main pulley 60 ₁ and a second sub pulley 60 _2. Of the flexible cords 5 corresponding to the movement of the movable table 35 at a position substantially corresponding to the rotation axis of the movable plate 35.
8 ₁ , 58 ₂ can be run.

At the other end of the cover 22 ₁ , there is provided a fitting portion 108 which can be fitted from above into the middle portion of the first end supporting frame 32 _{1 in} the longitudinal direction. At the edge, the elastic edge member 10 that contacts the outer surface of the end support frame 32 ₁
9 is attached, and the end support frame 3 is provided on the inner surface of the fitting portion 108.
Elastic member 110 in contact with 2 ₁ of the outer surface is adhered. As a result, the cover 22 is vibrated by the vibration accompanying the movement of the movable table 35.
Generation of noise can be prevented by looseness between the _first other end and the first end support frame 32 _1.

[0066] The both side plates 1 at the first end support frame 32 ₁ nearer
The tension springs 61, 61 of the restoring force generating means 36 ₁ are prevented from directly contacting the inner surfaces of the side plates 106, 106 with the inner surfaces of the side plates 106, 106 to generate abnormal noise. The elastic member 111 has two tension springs 61,
Each of them is attached over the expansion and contraction range of 61.

Such a cover 22₁, 22₂The central branch
Holding frame 34 and both end support frames 32₁, 32₂To be placed between
As a result, the restoring force generating means 36₁Both flexible cords in
58 ₁, 58₂Do not interfere with the running of
Can cover the central part between both rails 33, 33,
Make sure to accidentally step between the rails 33, 33.
It can be prevented and the safety can be improved. Moreover,
Cover 21₁To accommodate the tension springs 61, 61,
It is formed in a substantially U-shaped cross section that opens downward,
Covers the spring of the tension springs 61, 61₁Prevent
be able to.

By the way, in the practice with such a ski practice device, it is general to practice with the stocks 21 and 21 as shown in FIG.
It may be difficult for a beginner to practice using the stocks 21 and 21, and in such a case, as shown in FIG. 19, a handle detachably attached to both end support frames 32 ₁ and 32 _2. It is also possible to practice using 130.

20, FIG. 21 and FIG. 22, the handle 130 has the first and second end support frames 32 ₁ and 3 2.
Attaching part 1 that can be detachably attached to 2 ₂
31 and 131, and rising portions 132 and 1 that are detachably connected to the mounting portions 131 and 131 and extend upward.
32 and a grip portion 133 which is detachably connected to the upper ends of the compatibility portions 132, 132 and extends horizontally, and is attached to the first and second end support frames 32 ₁ , 32 ₂ . The substantially trapezoidal shape allows the practitioner to practice while holding the connecting portion 133.

Referring also to FIG. 23, the mounting portion 131
Is a support frame 32 at both ends₁, 32₂A circle that can be fitted to the end of
Cylindrical body 134 and a disc shape fixed to the outer end of the cylindrical body 134
Of the closing plate 135 and the cylindrical body 134 coaxially with each other
And a curved tube 136 fixed to 35. Cylindrical body 13
At the open end of 4, the cylindrical body 134 is attached to both end support frames 3
Two ₁, 32₂Relative to the support cylinder 38 while being fitted to the end of the
An engagement notch 137 is provided for non-rotatably engaging. Shi
Therefore, the cylindrical body 134 is attached to the support frame 32 at both ends.₁, 32 ₂of
The first and second curved tubes 136 can be simply fitted to the ends.
End support frame 32₁, 32₂Relative to the axis about
The location will be decided.

The outer diameter of the closing plate 135 is the same as that of the support member 28.
It is set so that it can be fitted to
A lock provided on the outer circumference of the support member 28 on the inner circumference of the support member 28.
An engaging portion 139 that engages with the groove 138 is formed. But
The cylindrical body 134 is attached to the support frame 32 at both ends.₁, 32₂End of
The end support frame 3 of the mounting portion 131 by simply fitting
Two ₁, 32₂Relative position around the axis with respect to
Not only the end support frame 32 of the mounting portion 131₁, 32₂
The state of attachment to is elastically retained.

The curved pipe 136 is curved so that the other end faces upward, and the curved portion is provided with a grounding portion 136b capable of contacting the floor surface 31.

The rising portion 132 is made of a tubular body having the same diameter as the curved pipe 136 and having both ends open, and an insertion protrusion 136 a provided at the other end of the curved pipe 136 is provided at the lower end of the rising portion 132. It can be inserted and removed. Further, the grip portion 133 is formed in a substantially U-shape that is opened downward by bending the tubular body having the same diameter as that of the rising portion 132, and the insertion protrusions 133 are provided at both ends thereof so as to project.
a and 133a are removably fitted on the upper ends of the compatible parts 132 and 132, respectively.

In this way, the handle 130 is detachably 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 13 is attached.
1, 131, a pair of rising portions 132, 132, and a single grip 133 can be disassembled, and a large storage space is not required.

FIG. 24 shows a second embodiment of the present invention, and the portions corresponding to those of the first embodiment are designated by the same reference numerals.

The footrests 71, 71 have an enlarged portion 73a of the pivot 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
Without using 14, 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.

25 to 29 show a third embodiment of the present invention. FIG. 25 is a vertical sectional front view of the ski training device with a cover removed, and FIG. 26 is a line 26 in FIG. FIG. 27 is an enlarged cross-sectional front view of a portion, FIG. 27 is an enlarged sectional view of a portion indicated by an arrow 27 in FIG. 26, FIG.

First, referring to FIG. 25, 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 first and second main sheaves 59 ₁ and 60 ₁ are coaxial with the bracket 65 of the central support frame 34. The second auxiliary pulley is pivotally supported, and the movable support frame 63 ₁ is pivotally supported by the third auxiliary pulley 62 ₁ coaxial with the third main pulley 62 _1.
A sub-flexible cable, one end of which is connected to the movable table 35 adjacent to ₁ , is inserted between the first and second sub-pulleys, wound around the third sub-pulley, and connected to the first tension spring 118. 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. 26, 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 so as 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.
6 at the left end) of the movable support frame 6 3 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. 27, 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. 28A, 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. 8 (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 that of the second tension spring 119, as shown in FIG. 29, 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 the restoring force characteristic changing position can be easily adjusted.

Moreover, 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. 30 shows a fourth embodiment of the present invention, and the portions corresponding to the respective embodiments described above 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 regulating 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 base 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.

[0090] 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 acts on the table 35 toward the center side along the longitudinal direction of both rails 33, 33. 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 '. Tension spring 11
Due to the spring force of 9 ', a restoring force acts on both rails 33, 33 toward the center side along the longitudinal direction. 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.

31 to 35 show a fifth embodiment of the present invention. FIG. 31 is a front view of the ski training device with the cover removed, and FIG. 32 is a view taken in the direction of arrow 32 in FIG. Figure 3
3 is an enlarged sectional view taken along line 33-33 of FIG. 32, and FIG.
34 is a sectional view taken along line 34-34 of FIG. 35, and FIG.

[0093] restoring force generating means 36 _4, primary and secondary elastic belt and the other end with formed of an elastic material such as rubber, one end is connected to the moving platform 35 is connected to the first end support frame 32 ₁ 141 ₁ and 141 ₂ and both elastic belts 141
_First and second sheaves 59 'and 60' supported by the central support frame 34 by guiding ₁ , 141 ₂ from both sides, and a third sheave 62 'around which both elastic belts 141 ₁ and 141 ₂ are wound.
And a fixed support frame 6 for rotatably supporting the third pulley 62 '.
3 ', the second end support frame 32 ₂ and the fixed support frame 63'
And a turnbuckle 64 as a connecting mechanism that connects the two members with their connecting distances adjustable.
41 ₂ is formed to be slightly longer than the main elastic belt 141 ₁ .

[0094] The main elastic belt 141 ₁ and the sub elastic belt 141 ₂ is superimposed on each other, they 141 _1, 1
One end of 41 ₂ is pulled out upward from a rectangular hole 142 provided in a substantially central portion of the moving table 35. Thus, one end of each of the elastic belts 141 ₁ and 141 ₂ is firmly sandwiched between the upper surface of the moving table 35 and the mounting plate 143 fastened to the upper surface of the moving table 35, whereby the moving table is moved. 35 will be connected. Further, in the fixed support member 67 '(see FIG. 32) fixed to the intermediate portion in the longitudinal direction of the first end support frame 32 ₁ , the other end portions of both elastic belts 141 ₁ and 141 ₂ are It is connected in the same manner as the connecting structure to the movable table 35.

Fixed support frame 6 for pivotally supporting the third pulley 62 '
One end of a turnbuckle 64 is connected to 3 ', and the other end of the turnbuckle 64 is locked and connected to a fixed support member 69 fixed to the middle portion in the longitudinal direction of the second end support frame 32 ₂ .

In the restoring force generating means 36 ₄ as described above, in its initial state, the main elastic belt 141 ₁ is brought into a tensioned state by adjusting the length by the turnbuckle 64. When the movable table 35 moves to the right on both rails 33 and 33, both elastic belts 141 ₁ and 141 ₂ move to the right of the first and second pulleys 59 'and 60', that is, the second pulley 6
The main elastic belt 1 is wound around 0'and moves as the moving table 35 moves to the right on both rails 33, 33.
The spring force of 41 ₁ increases and a restoring force acts on the moving table 35 toward the center side along the longitudinal direction of both rails 33, 33. When the movable table 35 moves to the left on both rails 33 and 33, the elastic belts 141 ₁ and 141 ₂ are wound around the left side of the first and second pulleys 59 'and 60', that is, the first pulley 59 '. As the movable table 35 moves to the left on both rails 33, 33, the spring force of the main elastic belt 141 ₁ increases and the movable table 35 is moved toward the center side along the longitudinal direction of both rails 33, 33. The restoring force toward it will act. That is, the main elastic belt 1
Since the spring force of 41 ₁ acts on the moving table 35 as a restoring force when the moving table 35 is moved to either the left or right side, the restoring force from either the left side or the right side is always equal. It is not necessary to adjust the restoring force evenly.

[0097] Moreover when adjusting the restoring force of the restoring force generating means 36 _4, well only length adjustment by turnbuckle 64, it can be easily adjusted in resiliency.

By the way, the main elastic belt 141 ₁ may be broken for some reason. However, the sub elastic belt 141 _{2 which} is superposed on the main elastic belt 141 ₁ and which connects the moving table 35 and the fixed support member 67 ′,
Since it is formed longer than the main elastic belt 141 ₁ ,
Main elastic belt 1 that is in tension and exerts restoring force
A tension lower than 41 ₁ will act on the secondary elastic belt 141 ₂ . That is, the load applied to the sub elastic belt 141 ₂ is less than that of the main elastic belt 141 ₁ .
Life is being extended as a result. Therefore, when the main elastic belt 141 ₁ breaks, the sub elastic belt 141 ₂
Can be applied with a restoring force to the movable table 35, and the movable table 35 is prevented from falling off the rails 33, 33, so that safety can be ensured.

As still another embodiment of the present invention, the main elastic belt 141 is arranged in parallel in the lateral width direction of the main elastic belt 141 ₁ connecting the movable table 35 and the fixed support member 67 '.
_It is also possible to arrange the auxiliary elastic belt 141 ₂ which is formed longer than ₁ and connects the movable table 35 and the fixed support member 67 ′.

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.

[0101]

As described above, according to the first aspect of the present invention, the restoring force generating means is made of an inelastic material, and one end of which is connected to the movable base, and the flexible rope. First and second pulleys pivotally supported by a central support frame to guide from both sides, and one end connected to a fixed support member on one end support frame side, and the other end to the other end of the flexible cable. Since the elastic member to be connected and the third pulley which is pivotally supported by the fixed support frame on the other end support frame side and around which the flexible rope is wound are provided, it is possible to move the movable table to either the left or right side. Since the elastic force of the elastic member acts as a restoring force even during movement, the restoring force from either the left side or the right side is always equal, and the equalizing adjustment of the restoring force is unnecessary.

According to the invention described in claim 2, in addition to the structure of the invention described in claim 1, the fixed support frame is connected to the other end support frame via a connection mechanism capable of adjusting the connection distance. Since they are connected, the restoring force can be adjusted only by adjusting the length by the connecting mechanism, and the adjustment work becomes extremely easy.

According to the third aspect of the invention, in addition to the configuration of the first or second aspect of the invention, the main flexible rope connecting the movable base and the elastic member in a tensioned state is the first and the first flexible rope. The auxiliary flexible ropes, which are guided from both sides by the two main pulleys and are wound around the third main pulley and which connect the movable table and the elastic member in a loose state, are coaxial with the first and second main pulleys, respectively. It is guided from both sides by the first and second sub-pulleys pivotally supported by the central support frame, and is wound around the third sub-pulley pivotally supported by the fixed support frame coaxially with the third main pulley. When the flexible cable is broken, the auxiliary flexible cable gives a restoring force to the movable table, so that safety can be guaranteed.

According to the fourth aspect of the invention, the restoring force generating means is made of an inelastic material, and one end thereof is connected to the movable base, and the central supporting member is provided to guide the flexible cord from both sides. First and second pulleys pivotally supported by the frame, and a first elastic member having one end connected to a fixed support member on one end support frame side and the other end connected to the other end of the flexible cable. A third pulley around which the flexible cable is wound, a movable support frame that rotatably supports the third pulley, one end of which is connected to the fixed support member on the other end support frame side, and the other end of which is Since the second elastic member connected to the movable support frame is provided, the elastic force of the first and second elastic members cooperates as a restoring force when the movable table is moved to the left or right side. Because it works, left,
Restoring force from either side on the right is always equalized, eliminating the need for equal adjustment of restoring force.

According to the invention described in claim 5, in addition to the configuration of the invention described in claim 4, the movable support frame is connected to the second elastic member via a connection mechanism capable of adjusting the connection distance. Therefore, the restoring force can be adjusted only by adjusting the length of the connecting mechanism, and the adjusting work becomes extremely easy.

According to the invention of claim 6, in addition to the structure of the invention of claim 4 or 5, the spring constant of the second elastic member is set smaller than the spring constant of the first elastic member, Since the support frame is provided with the restriction means for restricting the moving range of the movable support frame, the restoring force can have two-stage characteristics.

According to the invention of claim 7, in addition to the structure of the invention of claim 4 or 5, the spring constant of the first elastic member is set smaller than the spring constant of the second elastic member, and Since the support frame is provided with the restricting means for restricting the moving range of the one end of the first elastic member, the restoring force can have two-step characteristics.

According to the invention of claim 8, in addition to the structure of the invention of claim 4, 5, 6 or 7, the main flexible cord for connecting the movable base and the first elastic member in a tensioned state. Is guided from both sides by the first and second main sheaves and is wrapped around the third main sheave, and the sub-flexible ropes that connect the movable table and the first elastic member in a loose state are Two
A third sub sheave that is guided from both sides by first and second sub sheaves that are coaxially supported by the central support frame and coaxial with the main sheave, and that is pivotally supported by the movable support frame that is coaxial with the third main sheave. Since the sub flexible cable is normally unloaded, the sub flexible cable gives a restoring force to the moving table when the main flexible cable should break, ensuring safety. be able to.

According to the ninth aspect of the invention, the restoring force generating means includes an elastic belt having one end connected to the moving base and the other end connected to the fixed support member on one end support frame side, A first pulley and a second pulley which are pivotally supported by a central support frame to guide the elastic belt from both sides, and a third pulley which is pivotally supported by a fixed support frame on the other end support frame side and around which the elastic belt is wound. Since it is equipped with a pulley, the elastic force of the elastic belt acts as a restoring force when moving to the left or right side of the moving table, so the restoring force from either the left or right side is always equal, In addition to the need for equal adjustment, the elastic belt has both functions of the flexible cord and the elastic member according to the first aspect of the present invention, so that the configuration can be further simplified.

Further, according to the invention of claim 10, in addition to the structure of the invention of claim 9 described above, a main elastic belt for connecting the movable table and the fixed support member and a longer elastic belt are formed. The auxiliary elastic belt connecting between the movable table and the fixed support member is guided from both sides by the first and second pulleys and wound around the third pulley, so that the load on the auxiliary elastic belt is normally applied to the main elastic belt. If the primary elastic belt is broken, the auxiliary elastic belt can give a restoring force to the moving base to ensure safety.

[Brief description of drawings]

FIG. 1 is a front view of a ski practice device of a first embodiment with a cover removed.

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 for explaining the structure and operation of the restoring 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 side view of the cover.

16 is a view from arrow 16 of FIG.

FIG. 17 is a view taken along line 17-17 of FIG.

FIG. 18 is a front view showing a practice state using a stock.

FIG. 19 is a front view showing a practice state using a handle.

20 is a view on arrow 20 of FIG.

FIG. 21 is a side view of the handle.

22 is a view on arrow 22 of FIG. 21. FIG.

23 is an enlarged cross-sectional view taken along line 23-23 of FIG.

FIG. 24 is a front view corresponding to FIG. 4 of the second embodiment.

FIG. 25 is a vertical sectional front view of the ski practice device of the third embodiment with the cover removed.

FIG. 26 is an enlarged vertical sectional front view of a portion indicated by an arrow 26 in FIG.

FIG. 27 is an enlarged cross-sectional view taken along line 27 of FIG.

FIG. 28 is an operation explanatory view.

FIG. 29 is a restoring force characteristic diagram.

FIG. 30 is a vertical cross-sectional front view of the ski practice device of the fourth embodiment with the cover removed.

FIG. 31 is a front view of the ski practice device of the fifth embodiment with the cover removed.

32 is a view on arrow 32 of FIG. 31. FIG.

FIG. 33 is an enlarged cross-sectional view taken along line 33-33 of FIG. 32.

34 is a sectional view taken along the line 34-34 of FIG. 33.

FIG. 35 is a view on arrow 35 of FIG. 34.

[Explanation of symbols]

31 ... Floor surface 32 ₁ , 32 ₂ ...... End support frame 33 ...... Rail 34 …… Central support frame 35 …… Moving stand 36 ₁ , 36 ₂ , 36 ₃ , 36 ₄ …… Restoring force generating means 58 ₁ …… Main flexible line 58 ₂ …… Sub flexible line 59 ₁ …… First main pulley 59 ₂ …… First sub pulley 59 ′ …… First pulley 60 ₁ …… Second main pulley 60 ₂ …… No. 2 Sub pulley 60 '... Second pulley 61 ... Tension spring as elastic member 62 ₁ ...... Third main pulley 62 ₂ ...... Third sub pulley 62' ...... Third pulley 63 ₁ , 63 '...... Fixed Support frame 63 ₂ , 63 ₃ ... Movable support frame 64 ... Turnbuckle 67, 67 ', 69 as a connecting mechanism ... Fixed support member 118, 118' ... First tension spring 119 as a first elastic member 119 '... Second tension spring as second elastic member 120,120' ... Regulating means 141 ₁ …… Main elastic belt 141 ₂ …… Sub elastic belt

Claims (10)

[Claims] 1. A pair of end support frames (32 ₁ , 32 ₂ )
And a pair of rails (33) which are formed in an arc shape bulging upward and whose both ends are respectively connected to the both end support frames (32 ₁ , 32 ₂ ), and the center of both rails (33) in the longitudinal direction. A central support frame (34) that supports the part and is placed on the floor surface (31), and both rails (33) on which the trainee is placed.
A movable base (35) that can move up, and a restoring force toward the longitudinal center of both rails (33) is the movable base (35).
In the ski training device including a restoring force generating means (36 ₁ ) for giving to the ski, the restoring force generating means (36 ₁ ) is made of an inelastic material, and one end of the flexible rope (58) is connected to the moving base (35). ₁ ), first and second sheaves (59 ₁ , 60 ₁ ) pivotally supported by a central support frame (34) to guide the flexible rope (58 ₁ ) from both sides, and one end support frame. (32
_The elastic member (61), one end of which is connected to the fixed support member (67) on the ₁ ) side and the other end of which is connected to the other end of the flexible rope (58 ₁ ), and the other end support frame (32). It is supported by the fixed support frame (63 ₁ ) on the ₂ ) side and is supported by the flexible cable (58).
A ski practice device comprising: a third pulley (62 ₁ ) around which ₁ ) is wound. 2. The fixed support frame (63 ₁ ) is connected to the other end support frame (32 ₂ ) via a connection mechanism (64) whose connection distance is adjustable. Ski practice device described in 1. 3. A main flexible rope (58 ₁ ) connecting between the movable table (35) and the elastic member (61) in a tensioned state is provided with first and second main pulleys (59 ₁ , 60 ₁ ) from both sides. The movable table (35) and the elastic members (118, 11) are loosened while being guided and wound around the third main pulley (62 ₁ ).
8 ') sub-flexible ropes (58 ₂ ) are connected to the first and second main pulleys (59 ₁ , 60 ₁ ) coaxially with the first and second central support frames (34). second while being guided on both sides in the sub-pulley (59 _2, 60 _2), third main pulley (62 ₁₎ and the fixed support frame and coaxial (63 ₁₎
The ski training device according to claim 1 or 2, wherein the ski training device is wound around a third auxiliary pulley (62 ₂ ) pivotally supported on the ski. 4. A pair of end support frames (32₁, 32₂)
And both ends are formed in the shape of an arc that bulges upward
Is the support frame (32₁, 32₂) Each
Pair of rails (33) and the length of both rails (33)
While being placed on the floor (31) while supporting the central part in the hand direction
Central support frame (34) and both rails (33) with a trainee on it
The movable table (35) that can move above and the rails (33)
The movable table (35) is provided with a restoring force toward the center side in the longitudinal direction.
For generating restoring force (36₂, 36₃) And including
In the key training device, the restoring force generating means (36₂, 36
₃) Is made of an inelastic material and has a movable base (3
5) Flexible cable (58) connected to₁) And the flexible cord (5
8₁) Is supported on the central support frame (34) to guide
First and second pulleys (59₁, 60₁) And on the other hand
End support frame (32₁) Side fixed support member (67)
The ends are connected and the other end is connected to the flexible cord (58).₁)of
First elastic member (118, 118 ') connected to the other end
And the flexible cord (58 ₁) The third pulley (6)
Two₁) And the third pulley (62₁) Is rotatably supported
Dynamic support frame (63₂, 63₃) And the other end support frame (3
Two₂) Side fixed support member (69) is connected at one end
The other end is the movable support frame (63₂, 63₃)
Second elastic member (119, 119 ')
Ski practice device characterized by and. 5. The movable supporting frame (63 ₂ , 63 ₃ ) is connected to the second elastic member (119, 119 ') via a connecting mechanism (64) whose connection distance is adjustable. The ski training device according to claim 4. 6. The spring constant of the second elastic member (119) is set smaller than the spring constant of the first elastic member (118), and the movable support frame (63 ₂ ) moves in the central support frame (34). The ski practice device according to claim 4 or 5, further comprising a restriction means (120) for restricting the range. 7. The spring constant of the first elastic member (118 ') is set smaller than the spring constant of the second elastic member (119'), and the central supporting frame (34) has the first elastic member (11).
8 ') regulating means for regulating the movement range at one end (12
0 ') is provided.
The described ski practice equipment. 8. The moving table (35) and the first bullet in a tensioned state
Main flexible cable (5) for connecting the flexible members (118, 118 ')
8₁) Is the first and second main pulley (59₁, 60₁) In both
The third main pulley (62₁) Wrapped around
The movable base (35) and the first elastic portion in a state of being worn and loosened.
The first sub-flexible rope that connects the materials (118, 118 ') is the first
And the second main pulley (59₁, 60₁) Coaxial with each
The first and second sub-axes pivotally supported by the central support frame (34).
Pulley (59₂, 60₂) And be guided from both sides
The third main pulley (62₁) And movable support frame (6
Three ₂, 63₃) Is attached to the third auxiliary pulley (62₂)
It is hung, It is characterized by the above-mentioned, 4, 5, 6 or 7.
The described ski practice equipment. 9. A pair of end support frames (32 ₁ , 32 ₂ )
And a pair of rails (33) which are formed in an arc shape bulging upward and whose both ends are respectively connected to the both end support frames (32 ₁ , 32 ₂ ), and the center of both rails (33) in the longitudinal direction. A central support frame (34) that supports the part and is placed on the floor surface (31), and both rails (33) on which the trainee is placed.
A movable base (35) that can move up, and a restoring force toward the longitudinal center of both rails (33) is the movable base (35).
Restoring force generating means for applying to the ski training apparatus comprising (36 ₄₎ and a restoring force generating means (36 ₄₎ has one end supporting frame with one end connected to the moving platform (35) (32 ₁₎ Elastic belt (141 ₁ ), the other end of which is connected to the fixed support member (67 ′) on the side, and the elastic belt (141).
₁ ) 1st and 2nd sheaves (59 ', 60') pivotally supported by a central support frame (34) for guiding both sides, and the fixed support frame (32 ₂ ) side of the other end part support frame (32 ₂ ) 63 ') and a third pulley (62') around which an elastic belt (141 ₁ ) is wound, and a ski practice device. 10. A main elastic belt (141 ₁ ) for connecting between a movable table (35) and a fixed support member (69 ′),
The auxiliary elastic belt (141 ₂ ) which is formed longer than the main elastic belt (141 ₁ ) and connects the movable table (35) and the fixed support member (69 ′) together with the first and second pulleys (5
The ski training device according to claim 9, wherein the ski training device is guided from both sides by 9 ', 60') and is wound around a third pulley (62 ').