CN1814335A - Foot boot clamp for snowboard or surfboard has flat pivoting interface to base board - Google Patents

Abstract

The invention relates to a sport apparatus, comprising: a first member and a second member, which are designed in a way that one articulated element does a flat disc type rotation relative to another one. The articulated element comprises a pivot fixed on the first member. The pivot passes through one hole of the second member. A stopping member is fixed on the pivot for maintaining the second member on the first member along the length direction of the pivot.

Description

Has the square position formula exercise of first member and second member in relative rotation

Technical field

[01] the present invention relates to the exercise field, described utensil has and is adapted to one first member and one second member that rotates (tourner à plat) relative to another square position formula.The invention particularly relates to and make foot or footwear remain on holding device on the sports apparatus, foot or footwear keep by means of at least one chaining part (lien).

Background technology

[02] this utensil is used for various sports, for example gliding motility.Can be skis, aquaplane, snowshoe, belt wheel skating boots etc.

[03] according to prior art, the utensil that exercise for example has chaining part generally comprises a lateral parts and a mid portion, limit an admittance zone of admitting foot or footwear therebetween, comprise at least one chaining part that extends between lateral parts and mid portion in addition, every chaining part is used for foot or footwear are remained on the admittance zone.

[04] in general, chaining part has one or more parts, is arranged to releasably hitch, fastens or carry out length adjustment.

[05] chaining part is connected on the side direction part by a side setting fastening spare, is connected on the mid portion by a middle setting fastening spare.Chaining part is more pliable and tougher, does not stretch basically.Its pliability makes it to be suitable for foot or footwear.Its relative not extensibility helps foot or footwear are remained on the admittance zone.

[06] in order to be suitable for foot or footwear best, the each several part of chaining part can connect into one and rotate with respect to another.Perhaps the each several part of chaining part is connected on lateral parts or the mid portion, can rotate with respect to the latter.

[07] for a for example a part of chaining part of two parts and a part or two parts chaining part are relatively rotated, especially requires configuration one articulated elements in the prior art.

[08] in general, as shown in Figure 1, an articulated elements a can make one of two member b, the c of its connection rotate with respect to another square position formula.For this reason, each has a zone that is the plane basically member b, c, and articulated elements a carries out hinged along an axis d who is substantially perpendicular to described zone.Articulated elements a comprises a nut e who is embedded among the one first member b, and is embedded in the packing ring f that one among the one second member c has convex shoulder.Articulated elements a also comprises a screw g, and it at first passes the packing ring f and the second member c, passes the first member b then, and e matches with nut.Obviously, screw lock links together the first member b and second a member c who lies on another in nut, makes it to relatively rotate, and packing ring f guides the second member c to rotate.

[09] defective of this articulated elements is the structure more complicated in the prior art, is furnished with the so a plurality of members of nut, packing ring and screw.The assembling of articulated elements is also complicated.In fact, must with gasket arrangement on second member, make screw feed packing ring and second portion, also will with nut arrangements on first member, at last, make screw enter nut by first member.Tightening screw needs carefully, because nut must be remained on first member during tightening.

Summary of the invention

[10] the present invention is intended to simplify the hinged and/or assembling that is adapted to two members that rotate with respect to another square position formula.

[11] for this reason, the present invention proposes a kind of exercise, and it has one first member and one second member, is adapted to by one of an articulated elements to rotate with respect to another square position formula.

[12] exercise of the present invention is characterized in that, articulated elements comprises that one is fixed on the pivot on first member, and pivot passes a hole of second member, and a retainer is fixed on the pivot, is used for along the length direction of pivot second member being remained on first member.

[13] with respect to prior art, articulated elements of the present invention has better simply structure.In fact, the number of components that articulated elements comprises reduces, and is not embedded in the packing ring between the screw body and second member.Difference is, is fixed on the hole that a pivot on first member passes second member.Therefore, be that pivot guides second member to rotate.Therefore, there is no need on second member, to arrange a packing ring.Like this, the structure and the assembling of articulated elements of the present invention are simplified.Can draw thus, its superiority is to have improved greatly productivity ratio.

Description of drawings

[14] with reference to accompanying drawing and non-limiting example, the present invention will be understood preferably.Accompanying drawing is as follows:

[15] Fig. 1 is the profile of the articulated elements of exercise in the prior art;

[16] Fig. 2 is the front elevational view that in the first embodiment of the invention sufficient and footwear is remained on the holding device on the sports apparatus;

[17] Fig. 3 is the partial perspective view of the chaining part of device shown in Figure 2, and its angle is similar to angle shown in Figure 2;

[18] Fig. 4 is the partial perspective view of chaining part shown in Figure 3, and its angle is different from angle shown in Figure 3;

[19] Fig. 5 is the profile along V-V among Fig. 3;

[20] Fig. 6 is similar to Fig. 5, and second embodiment of the invention is shown;

[21] Fig. 7 is similar to Fig. 5, and third embodiment of the invention is shown;

[22] Fig. 8 is similar to Fig. 5, and fourth embodiment of the invention is shown;

[23] Fig. 9 is similar to Fig. 5, and fifth embodiment of the invention is shown;

[24] Figure 10 is the stereogram of a member of articulated elements in the fifth embodiment of the invention;

[25] Figure 11 is similar to Fig. 5, and sixth embodiment of the invention is shown.

The specific embodiment

[26] although described embodiment relates to foot or footwear are remained on holding device on the sports apparatus,, should be appreciated that also to be applicable to as aforesaid other utensils.

[27] by Fig. 2 to 5 first embodiment is described now.

[28] as shown in Figure 2, exercise 1 or holding device can make the footwear (not shown) temporarily remain on the apparatus 2.Apparatus 2 for example is the skis that is used for skiing.

[29] obvious, relate to the skiing field although install 1 morely, also should be appreciated that to be suitable for aforementioned other field.

Be well known that [30] holding device 1 comprises the base 3 of a longitudinal extension between rearward end 4 and leading section 5.

[31] base 3 has upper surface 6 and lower surface 7, and upper surface 6 is adapted to relative with sole, and lower surface 7 is determined on plate 2.

[32] base 3 is remained on the plate 2 by a discoid pieces 10, and discoid pieces 10 itself is remained on the plate 2 by screw 11.

[33] obvious, other keepers of configurable base 3.

[34] lateral edge of base 3 is side plates 13 in the middle of a side side plate 12 and.Each side plate the 12, the 13rd forms the lateral parts of device 1 or the member of mid portion respectively, is used to limit the admittance zone 14 of footwear.When footwear placed on the utensil 1, side plate 12,13 stretched along sole in the side.Obviously, configurable other members that are different from side plate 12,13 are to form lateral parts and mid portion.For example configurable simple side stop and central stops.

[35] base 3 and side plate 12,13 are preferably formed as an integrated member of for example making with synthetic material.But can be adapted to, side plate is the member that methods such as, welding for example bonding by any means, screw are fixed, interlocking are connected with base.

[36] device 1 also comprises a back supporting member 20, so that user's shank bottom can obtain the back supporting.

[37] according to first embodiment of the invention, back supporting member 20 for example is connected with side plate 12,13 by an articulated elements 28.Described articulated elements is located along the axis of pitch 29 of device 1 basically.Articulated elements 28 can comprise any assemblies such as screw, rivet, nut, bolt.

[38] articulated elements 28 can make back supporting member 20 carry out close towards base 3.Its superiority is to be easy to pack up.

[39] holding device 1 also comprises a retainer 35, and its restriction back supporting member 20 rotates towards the rear portion.

[40] also configurable two chaining parts are so that admitting zone 14, between side plate 12,13, remain on footwear on the base 3 with manner.

[41] after foot kept well, first chaining part 50 at the articulationes metatarsophalangeae place forward.After foot kept well, second chaining part 51 at the place, instep backwards.

[42] each chaining part 50,51 horizontal expansion between side plate 12,13.

[43] obvious, the chaining part of configurable varying number.

[44] according to first embodiment of the invention, shown in Fig. 2 to 4, second chaining part 51 comprises anterior 52 and one rear portion 53.

[45] front portion 52 of chaining part 51 is positioned at a bearing-surface 26 1 sides of back supporting member 20, and the rear portion 53 of chaining part 51 is positioned at a scope of freedom 27 1 sides of back supporting member 20.This just can make second chaining part tighten back supporting member 20 when keeping foot or footwear.Therefore, the back of shank bottom always is close on the bearing-surface 26 of back supporting member 20.Its superiority is directly to transmit the action impulse force when the supporting of back.

[46] rear portion 53 of chaining part 51 comprises by root 61 in the middle of an arched member 62 side roots 60 connected to one another and.Side root 60 and middle root 61 are respectively for example to be connected member on side side plate 12 and the middle side plate 13 with the articulated elements 28 with axis 29.Articulated elements 28 is used for thereby rear portion 53 is connected side side plate 12 and middle side plate 13 with rear portion chaining part 51.Simultaneously, articulated elements 28 is used to keep the rear portion 53 of back supporting member 20 and chaining part 51.Its superiority is simplified structure.Another superiority is to make rear portion 53 to have rotational freedom along axis of pitch 29.This is convenient to install rear portion 53.Arched member 62 is easier to abut on the scope of freedom 27 of back supporting member 20.

[47] front portion 52 of chaining part 51 is described by Fig. 2 to 5.

[48] anterior 52 are connected with rear portion 53.One first setting fastening part 63 shown in the figure is that the lateral parts and the second setting fastening part 64 are the connected mode of mid portion.

[49] first 63 has a setting fastening end 65 and a free end 66.Setting fastening end 65 is connected with side root 60 by a side setting fastening spare 67.Side setting fastening spare 67 is implemented as articulated elements.

[50] first connectors are used for manner the free end 66 that second portion 64 is connected to first's 63, the first setting fastening parts 63 being positioned on the second portion 64.This connector for example comprises a pawl type locking member 70, and its free end 71 places at second portion 64 are fixed on the described second portion 64.The connector that second portion 64 is connected in the first 63 also comprises one group of tooth 72 that forms in the first 63.Tooth 72 is arranged near the articulated elements 67 from free end 66.

[51] second portion 64 has a setting fastening end 80 relative with its free end 71.On the root 61, described middle setting fastening spare 81 was implemented as articulated elements in the middle of setting fastening end 80 was connected to by a middle setting fastening spare 81.To be described below.

[52] two articulated elements 67,81 arrange along the axis of pitch of device that basically this can make anterior 52 to cover shoes well-balancedly.

[53] anterior 52 side root 60 and middle root 61 are connected to each other.Because anterior 52 setting fastening spare 67,81 is positioned on the root 60,61, therefore, anterior 52 are connected on lateral parts 12 and the mid portion 13 indirectly.

[54] anterior 52 on its length direction, promptly from a root to another root, be not extensible basically.For this reason, its constituent material will be selected.

[55] first setting fastening parts 63 preferably have a length and are with 84, and its polyamide or Polyurethane of for example strengthening or do not strengthen with synthetic material is made.With 84 free ends 66 that on length, extend to first 63 from setting fastening end 65.

[56] second setting fastening parts 64 also are microscler.The second setting fastening part 64 is extending on the length between setting fastening end 80 and the free end 71.The second setting fastening part 64 comprise one towards setting fastening end 80 be with 90, have a girth member 91 in free end 71 1 sides.Be with 90 and girth member 91 extend each other, to form a single piece.But, can be provided so with 90 being different members with girth member 91, by any member for example screw-nut assemble.

[57] have one group with 90 and be used for the hole 92 of matching with articulated elements 81.Select a hole 92, adjust the setting fastening position of second portion 64 with respect to middle root 61.This can make the length of second chaining part 51 be suitable for waiting to keep the size of footwear.

[58] last, each part 63,64 more or less all is pliable and tough.Its camber changes, and collapsible, to be suitable for foot or footwear.

[59] holding device 1 also comprises a cushion pad 100.

[60] cushion pad 100 is to be connected to a member on lateral parts 12 or the mid portion 13 by setting fastening spare 81 in the middle of a side setting fastening spare 67 of chaining part 51 or.The effective length of adjustable like this pitch chain fitting 51, and be not subjected to the influence of the position of cushion pad 100 between lateral parts and the mid portion.Therefore, no matter the shoe size that wears how, also no matter retaining mechanism 70 fastening degree how, cushion pad 100 all is in same position on holding device 1.The comfortableness or the tightness of shoes do not change.

[61] according to first embodiment of the invention, cushion pad 100 is connected with mid portion 13.Therefore, cushion pad 100 is positioned at setting fastening part 64 1 sides of being furnished with the pawl type retaining mechanism.But vice versa.

[62] cushion pad 100 carried out indirectly with being connected by articulated elements or middle setting fastening spare 81 of mid portion.Therefore, same setting fastening spare 81 can be that the second setting fastening part 64 and cushion pad 100 remain on on the part 13 with two members.Same setting fastening spare 81 keeps anterior 52 a setting fastening end 80 and cushion pad 100.

[63] obvious, also can on cushion pad, dispose a special-purpose setting fastening spare, promptly be different from the setting fastening spare that keeps setting fastening part 64.In this case, any structure is all suitable, comprises rivet, bolt, pliable and tough band, strap etc.

[64] superiority relevant with public setting fastening spare 81 is to make and simplifies.In addition, the assembly of single setting fastening spare 81 to two setting fastening spares is compacter.

[65] for one first member 61 and one second member 64,80,90 can one be rotated with respect to another square position formula, articulated elements 67,81 of the present invention comprises that one is fixed on the pivot 120 on first member 61, pivot 120 passes a hole 92 of second member 64,80,90, one retainer 125 is fixed on the pivot 120, is used for along the length direction of pivot second member being remained on first member.

[66] this easy structure of articulated elements is easy to implement.

[67] according to first embodiment of the invention, articulated elements 81 comprises a pivot 120 between the setting fastening end 80 and middle root 61 of the second setting fastening part 64 of second chaining part 51.As shown in Figure 5.

[68] obvious, first member is that middle root 61, the second members are second setting fastening parts 64 of second chaining part 51 here.

[69] for example to have a Long Circle be cylinder-shaped body 121 to pivot 120, and it is connected with a convex shoulder 122.Circular body 121 and convex shoulder 122 form a single piece, are connected by any suitable member each other but can be adapted to it.Convex shoulder 122 at the admittance zone of device 14 1 side bearings on middle root 61.Convex shoulder 122 and pivot 120 carry out rotational fixation by a protruding pin shape member 123 with respect to middle root 61.Protruding pin 123 is outstanding from convex shoulder 122, so that root 61 in the middle of embedding.For this reason, the material of different assemblies will be selected.For example, circular body 121, convex shoulder 122 and protruding pin 123 can be made into a metal integral spare.Middle root 61 can by synthetic material for example plastic material make.

[70] owing to protruding pin 123 embeds middle root 61, because long main body 121 enters a hole 124 of middle root 61, therefore, pivot 120 is fixed on first member or the middle root 61.

[71] according to the present invention, what pivot 120 passed cylindrical hole 92 of second member or setting fastening part 64 at its long main body 121 places is with 90.

[72] for second member, 64,80,90 length directions along pivot 120 are remained on first member 61, a retainer 125 is fixed on the pivot 120.

[73] according to the first embodiment of the present invention, retainer 125 comprises a screw, and it has a main body 126 and a head 127.Screw 125 is tightened in the long main body 121 of pivot 120, so that head 127 is relative with convex shoulder 122.Head 127 stops first member 61 and second member to be opened in 64,80,90 minutes.

[74] screw 125 is screwed to the end on pivot 120, and pivot 120 has a tapping hole.Here, screw is twisted with hand, because screw head has the shape that tool free can grip.But, also can be adapted to screw head and be designed to tool using and operate.

[75] in the first embodiment of the present invention, the 3rd member 100 also is adapted to by articulated elements 81 and keeps.In fact, pivot 120 also passes the 3rd member or cushion pad 100 in 104 places, a hole on cushion pad 100.Therefore, same pivot 120 can make 61,64,100 1 of plural members rotate with respect to another square position formula.

[76] installation of articulated elements 81 is very simple.As long as pivot 120 is installed on first member 61, other members 64,100 of setting-in are tightened screw 125 then.Circular body 121 extends through member 61,64,100, and they are held in place each other.Therefore, screw 125 is easy to embed pivot 120.Obviously, the diameter in the hole 92,104 of second member 64 and the 3rd member 100 is adapted to member 64,100 is rotated with respect to first member 61.The diameter in hole 92,104 is greater than the diameter of circular body 121.

[77] by Fig. 6 to 11 other embodiments of the invention are described now.For for simplicity, only illustrate and understand required member.

[78] Fig. 6 illustrates the second embodiment of the present invention.

[79] in a second embodiment, one first member 140, one second member 141 and one the 3rd member 142 are adapted to by 143 1 of articulated elements and rotate with respect to another square position formula.

[80] according to the present invention, articulated elements 143 comprises a pivot 144, and it has a long main body 145 and a convex shoulder 146.Long main body 145 has a tapping hole.

[81] according to second embodiment of the invention, convex shoulder 146 is received in the cavity 147 of first member 140 at least partly.This makes articulated elements 143 more compact.Convex shoulder 146 and cavity 147 all can have a circular periphery.In this case, can be adapted to one of to make and be fixed in another by for example bonding grade of any means.Convex shoulder 146 and cavity 147 also all can have a non-circular perimeter edge.In this case, similarly shape or complementary shape for example square configuration can make convex shoulder in cavity, carry out rotational fixation.Therefore, pivot 144 carries out rotational fixation.This is convenient to install articulated elements 143.

[82] Fig. 7 illustrates the third embodiment of the present invention.

[83] in the 3rd embodiment, first member 160, second member 161 and the 3rd member 162 are adapted to by 163 1 of articulated elements and rotate with respect to another square position formula.

[84] according to the present invention, articulated elements 163 comprises a pivot 164, and it has a long main body 165.

[85] according to third embodiment of the invention, 160 in aggregates of the long main body 165 and first members, long main body 165 directly rises from first member 160.As aforesaid, a screw 166 is adapted to member 161,162 is remained on the pivot 164 together.This embodiment simplifies articulated elements 163, and number of components reduces, and no longer needs pivot 164 is installed on first member 160.With regard to manufacturing, first member 160 and pivot 164 are for example made of plastic.

[86] Fig. 8 illustrates the fourth embodiment of the present invention.

[87] first members 180, second member 181, the 3rd member 182 are adapted to by 183 1 of articulated elements and rotate with respect to another square position formula.

[88] according to the present invention, articulated elements 183 comprises a pivot 184, and it has a long main body 185.

[89] a fourth embodiment in accordance with the invention, 180 in aggregates of the long main body 185 and first members, long main body 185 directly rises from first member 180.For member 181,182 is remained on the pivot 184, a retainer comprises a protruding pin 186, and its free end 187 1 sides at pivot 184 are fixed on the long main body 185.Protruding pin 186 has generally round-shaped, but can determine that a plurality of protruding pins are arranged on the periphery.Here, protruding pin 186 and long main body 185 form a single piece, are inlaid on another but also can be adapted to by one of any member.In addition, a slit 188 is arranged on the long main body 185, so that pivot 185 carries out reversible elastic deformation.The slit for example is vertical and horizontal.Be assembled component 180,181,182, as long as push second member 181 and the 3rd member 182 to first member 180 from free end 187.In this case, grow main body 185 owing to slit 188 is out of shape, so that enter respectively in the hole 189,190 of second member 181 and the 3rd member 182.After entering, member 181,182 is kept by protruding pin 186.This embodiment also simplifies the structure of articulated elements 183.

[90] Fig. 9 and 10 illustrates the fifth embodiment of the present invention.

[91] first members 200 and second member 201 are adapted to by 202 1 of articulated elements and rotate with respect to another square position formula.First member 200 can be the first setting fastening part 63 at its setting fastening end 65 places.Second member 201 can be a side root 60.

[92] according to the present invention, articulated elements 202 comprises that one is inlaid in the pivot 203 on first member 200.Pivot 203 has 205 of long main bodys of a head 204, from described head.Head 204 comprises two fins 206,207, and it is connected by a bridge 208, and long main body 205 is fixed on the bridge.For pivot 203 is installed, long main body 205 is passed a hole 209 of first member 200.

[93] according to a fifth embodiment of the invention, hole 210,211 is arranged on first member 200, so that fin 206,207 passes through.Hole 210,211 for example is by rectangular aperture molded or that mechanism obtains.Fin 206,207 folds after entering hole 210,211, so that pivot 203 remains on first member 200.Recessing 212,213 on fin 206,207, are easy to carry out described folding.Long main body 205, bridge 208 and fin 206,207 for example form a single piece made from metal or metal alloy.This structure can make pivot 203 remain on enduringly on first member 200.Be used for second member 201 is remained on retainer on first member 200, comprise a screw 214 here.

[94] obvious, use this articulated elements 202, also can keep plural member.

[95] the 6th embodiment shown in Figure 11.

[96] one first members 220 and one second member 221 are adapted to by 222 1 of articulated elements and rotate with respect to another square position formula.

[97] according to the present invention, articulated elements 222 comprises that one is inlaid in the pivot 223 on first member 220.Pivot 223 has 225 of long main bodys of a head 224, from described head 224.Head 224 comprises two fins 226,227 that connected by a bridge 228, and long main body 225 is fixed on the bridge.

[98] according to a sixth embodiment of the invention, retainer comprises a pin 229, is used for second member 221 is remained on first member 220.Pin 229 has a head 230, one main bodys 231 and extends from described head.The free end 232 of main body 231 has a protruding pin 233 and a slit 234.Protruding pin 233 for example has round-shaped.The long main body 225 of pivot 223 complementally has a hole 235 and a convex shoulder 236, to admit pin 229.As long as manual pushing pin 229 makes main body 231 embedded holes 235.The embedding and bridge 228 relative carrying out of pin 229.Protruding pin 233 matches with the convex shoulder in hole 235, to keep pin 229.Therefore, first member 220 and 221 1 of second members remain on another.This assembling mode tool free also need not to be screwed.As long as configuration one simple retaining mechanism.

[99] in general, the present invention is implemented by well known materials and known technology that the prior art personnel use.

[100] obvious, the present invention is not limited to previous embodiment, also comprises any equivalent technologies in the appended claims scope.

[101] particularly, the present invention also is applicable to first chaining part, 50 promptly preceding chaining parts.

[102] second chaining parts 51 can only have front portion 52, and do not have rear portion 53.

[103] also can be adapted to the front portion directly is connected with mid portion 13 with lateral parts 12.

[104] in all cases, quantitatively all can assemble more than or equal to two member.

[105] the available instrument of assembling or carry out without instrument.

[106] member can be the each several part of exercise, for example footwear, clothes, sack etc.

Claims (11)

1. exercise (1), it comprises one first member (61,63,140,160,180,200,220) and one second member (60,64,80,90,141,161,181,201,221), they are adapted to by one of an articulated elements (81,143,163,183,202,222) and rotate relative to another square position formula

It is characterized in that described articulated elements (81,143,163,183,202,222) comprise that one is fixed on described first member (61,63,140,160,180,200,220) pivot on (120,144,164,184,203,223), described pivot (120,144,164,184,203,223) pass described second member (60,64,80,90,141,161,181,201,221) a hole (92,189), one retainer (125,166,186,212,229) is fixed on described pivot (120,144,164,184,203,223) on, be used for along described pivot (120,144,164,184,203,223) length direction is with described second member (60,64,80,90,141,161,181,201,221) remain on described first member (61,63,140,160,180,200,220) on.

2. exercise according to claim 1 (1) is characterized in that, it comprises one the 3rd member (100,142,162,182), and it is adapted to by described articulated elements (81,143,163,183,202,222) and rotates.

3. exercise according to claim 1 and 2 (1) is characterized in that, described pivot (120,144) comprises a long main body (121,145), and described main body (121,145) is connected with a convex shoulder (122,146).

4. exercise according to claim 3 (1) is characterized in that, protruding pin (123) is from described convex shoulder (122) projection.

5. according to claim 3 or 4 described exercises (1), it is characterized in that described convex shoulder (146) is received in the cavity (147) of described first member (140) at least partly.

6. exercise according to claim 1 and 2 (1) is characterized in that, described pivot (164,184) has a long main body (165,185), in aggregates of this long main body (165,185) and described first member (160,180).

7. exercise according to claim 1 and 2 (1) is characterized in that, described pivot (203,223) has a head (204,224), a long main body (205,225) play from described head (204,224) this head (204,224) comprise two fins (206,207 that connect by a bridge (208,228), 226,227), described long main body (205,225) be fixed on the described bridge (208,228).

8. according to each described exercise (1) in the claim 1 to 7, it is characterized in that described retainer (125,166,212) comprises a screw.

9. according to each described exercise (1) in the claim 1 to 7, it is characterized in that described retainer (186) comprises a protruding pin (186).

10. according to each described exercise (1) in the claim 1 to 7, it is characterized in that described retainer (229) comprises a pin (229).

11., it is characterized in that described exercise (1) is to make foot or footwear remain on holding device on the sports apparatus, described first member (61 according to each described exercise (1) in the claim 1 to 10,63,140,160,180,200,220), second member (60,64,80,90,141,161,181,201,221) and the 3rd member (100,142,162,182) belong to the chaining part (50,51) of described holding device.

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