EP2668982A1 - System de fixation pour la fixation changeable d'une feuille flexible sur une tige - Google Patents

System de fixation pour la fixation changeable d'une feuille flexible sur une tige Download PDF

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Publication number
EP2668982A1
EP2668982A1 EP13170035.3A EP13170035A EP2668982A1 EP 2668982 A1 EP2668982 A1 EP 2668982A1 EP 13170035 A EP13170035 A EP 13170035A EP 2668982 A1 EP2668982 A1 EP 2668982A1
Authority
EP
European Patent Office
Prior art keywords
pole
connection member
flexible sheet
side edge
gate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13170035.3A
Other languages
German (de)
English (en)
Inventor
Gottfried Rottensteiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skipp Des Gottfried Rottensteiner & Co Sas
Original Assignee
Skipp Des Gottfried Rottensteiner & Co Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IT000112A external-priority patent/ITVR20120112A1/it
Priority claimed from IT000225A external-priority patent/ITVR20120225A1/it
Application filed by Skipp Des Gottfried Rottensteiner & Co Sas filed Critical Skipp Des Gottfried Rottensteiner & Co Sas
Publication of EP2668982A1 publication Critical patent/EP2668982A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/06—Apparatus for setting-out or dividing courts
    • A63C19/062—Slalom gate poles, posts or marking sticks for sport fields

Definitions

  • the present disclosure generally relates to the field of connections between a flexible element and a pole.
  • the present disclosure relates to the skiing sport field and to gates for slalom, specifically for giant slalom, Super G or downhill.
  • the use of a plurality of gates, that define a path that should be followed by a skier, is provided in the slalom skiing sport.
  • a slalom gate, in particular a half-gate for giant slalom is customarily made by a couple of poles that are driven into the snow and are joined together by a flexible sheet that is fastened to the poles.
  • the poles are flexible or articulated, so as to elastically bend when a skier goes against them and then to return to the original position.
  • the flexible sheet in addition to the function of signaling the gate, has an advertising purpose as well, thanks to its surface that can be printed with sponsor logos or other advertising messages.
  • the flexible sheet tends to move, to slide along the poles or to place itself obliquely between the poles instead of horizontally; thus, the flexible sheet is not clearly visible any more.
  • the ski regulations have provided for the flexible sheet to be detached from the poles when the sheet is subjected to a certain force.
  • the recent amendments to the regulations of the International Ski Federation have lowered the threshold value of this force, requiring that the sheet should be detached when it is pulled by a force of 6 kg-force.
  • the present disclosure starts from the technical problem of providing a mode for mounting a flexible sheet on a pole, that allows to overcome the drawbacks mentioned above with reference to the known and / or to achieve further advantages.
  • connection member according to independent claim 1 This is achieved by providing a connection member according to independent claim 1.
  • the technical problem is also solved by an assembly according to claim 4, by a gate for a skiing sport according to claim 8 and by a method for making a gate for a skiing sport according to claim 12.
  • the present disclosure starts also from an observation made by the inventor, i.e. that the flexible sheet tends to move upwards along the inner pole (that is the pole closer to the skier, i.e. the hit pole) and downwards along the outer pole (that is the pole farther from the skier) when a skier hits the gate without entering it.
  • the inventor has then observed that a fastening, which prevents the movement of the flexible sheet upwards along the inner pole (i.e., which holds downwards the edge of the sheet) and the movement of the sheet downwards along the outer external (i.e., which supports upwards the edge of the sheet), is required.
  • the inventor has further observed that, in order to prevent accidents to the skier when he enters the gate, it is sufficient that the flexible sheet gets detached from only one of the poles; in particular, it is sufficient that the flexible sheet gets detached from the outer pole. None of the systems known so far seems to provide for a detachment of the flexible sheet just from the outside pole.
  • connection member according to the present disclosure is useful for mounting the flexible sheet on the outer pole in such a way that the sheet is prevented from a downward movement along said outer pole (as it is required in case of an impact without entering), but at the same time letting the sheet free to move upwards along the outer pole, i.e. in the direction of slipping off (as it is required in case of entering).
  • connection member comprising a tubular body or sheath, which can be fastened or is fastened to the outer side edge of the flexible sheet.
  • the tubular body has a tubular cavity that forms a channel in which a length of the pole (which, in particular, is the outer pole of the gate) is inserted.
  • the connection member further includes an interference portion that is configured to interfere with the pole: when the connection member is mounted on the pole, such interference allows to block a relative movement of the connection member with respect to the pole along a first direction, and to allow a relative movement of the connection member with respect to the pole along a second direction opposite the first direction.
  • the interference portion forms a narrowing or an occlusion of the passage cross-section of the tubular cavity; such a narrowing or occlusion is intended to go resting on a transverse region of the pole, thus providing both a support for the weight of the connection member and of the flexible sheet, and a counter-force that opposes the force acting on the sheet in case of an impact without entering.
  • a transverse region can be a top face of the pole, or an enlargement of the cross-section of the pole.
  • connection member and the transverse region of the pole blocks a movement of the connection member and of the outer edge of the flexible sheet towards the bottom of the pole (i.e., towards the ground), as it is required for the outer pole in case of an impact of the skier against the inner pole without entering the gate; at the same time, a slipping off of the tubular body and of the flexible sheet from the outer pole is allowed when the skier enters the gate.
  • connection member according to the present disclosure is useful for implementing a system for fastening a flexible sheet on a pole, in particular for a gate for a ski race, the system allowing to keep the flexible sheet in the desired position during the race, thus preventing a displacement of the sheet when the skier hits the door, and at the same time not offering a relevant resistance to the slipping off of the sheet from the pole in case of interference between the skier and the flexible sheet, i.e. in the case of entering.
  • connection member according to the present disclosure is useful for allowing a use with poles of different diameter.
  • the poles available on the market have a diameter between 25.5 and 32 mm.
  • the connection member can be applied to a range of pole diameters.
  • it is sufficient that a length of the pole is housed in the tubular cavity in such a way that the interference portion of the connection member rests on a region of the pole, for example on its transverse top face.
  • FIG. 1 shows a prior-art gate 9 for slalom, in particular a half-gate for giant slalom, which is formed by a couple of poles 91, 92 driven into the ground 90 (in particular into the snow) in a spaced-apart relationship, i.e. with a certain distance between them.
  • the poles 91, 92 are joined together by a flexible sheet or cloth 93, fastened to the poles 91, 92 themselves so as to extend between them.
  • the tops 91 a, 92a of the poles 91, 92 protrude for a certain length from the top edge 933 of the flexible sheet 93.
  • the flexible sheet 93 which for example is made of synthetic fabric, substantially is a signaling element that, in addition to its function of joining together the poles 91, 92, signals the presence of the gate 9. Furthermore, the surface of the flexible sheet 93, which stays stretched between the poles 91, 92 in normal conditions, is used to show logos, sponsor or other messages, which are printed on the surface itself.
  • the sheet 93 subtends an open region 94 between the two poles 91, 92.
  • the poles 91, 92 are flexible and / or are connected to the ground 90 by an articulated joint, so as to bend elastically when a skier 99 impacts against them and to return to the upright position after the impact.
  • a skier 99 during a slalom skiing race, has to go about the gates 9, following the race path.
  • An inner pole i.e. the pole 91 that is closer to the path of the skier 99
  • an outer pole i.e. the pole 92 that is farther from the path of the skier 99
  • the flexible sheet 93 has an inner side edge 931 at the side of the inner pole 91 and an outer side edge 932 at the side of the outer pole 92.
  • skier 99 due to the high speed, makes a wrong movement or loses control and consequently he sticks an arm in the open region 94 between the two poles 91, 92, or even he enters with the whole body into the open region 94 instead of going at a side of the gate 9. In these cases, the skier 99 is likely to get caught in the sheet 93, resulting into a fall and injury of the skier 99.
  • the ski regulations of the FIS provide for the sheet 93 to be detached from the poles 91, 92 when the sheet 93 is subjected to a force of 6 kg. In fact, the detachment of the sheet 93 sets the skier 99 free, allowing him to go on without falling.
  • FIG. 2 An example of a known-art solution to achieve this, is shown in Figure 2 and in the enlarged detail of Figure 3 : the flexible sheet 93 is fastened to the inner pole 91 by Velcro strips 935 or clips 936 that are disengaged when the flexible sheet 93 is pulled with a certain force.
  • This type of solution does not allow to accurately calibrate the disengaging force for the sheet 93: therefore, it may happen that the sheet 93 is disengaged when it is not required, for example under the action of the wind, or that it is not promptly disengaged when it is required.
  • this solution does not allow to have a fastening system that works in the same way on poles of different diameters; therefore, it would be necessary to have more fastening systems, each specific for a particular diameter of the pole.
  • Figure 4 and the enlarged details of Figures 5 and 6 show a gate 9 in which the flexible sheet 93 is removably fastened to the outer pole 92 by a connection member according to the present disclosure, which is denoted by the reference number 1.
  • connection member 1 can be advantageously applied for mounting the flexible sheet 93 on the outer pole 92, while the connection of the flexible sheet 93 to the inner pole 91 may employ a clip or another prior-art fastening.
  • the connection member 1 comprises a tubular body 2 that has a tubular cavity 20, which is adapted to receive a length 921 of the outer pole 92.
  • the tubular body 2 defines a channel (i.e., the tubular cavity 20) that is adapted to receive a length 921 of the pole 92.
  • the tubular body 2 has a substantially sleeve-like shape, which forms a sheath adapted to be slipped on the pole 92.
  • the tubular cavity 20 has a passage cross-section that is transverse to a longitudinal axis 200 of the tubular cavity 20.
  • the passage cross-section is circular and has a diameter D20 that is slightly greater than the diameter D92 of the pole 92.
  • the tubular cavity 20 has a diameter D20 of 45 - 50 mm.
  • the tubular cavity 20 extends longitudinally between a first end 201 and a second end 202 of the tubular body 2.
  • the second end 202 or bottom end, has an opening 22 to access the tubular cavity 20.
  • the opening 22 allows the insertion of the pole 92 into the tubular cavity 20 through the opening 22 itself, in such a way that the length 921 of the pole 92 is housed in the tubular cavity 20 along the longitudinal axis 200.
  • the first end 201 has an interference portion 21 that is intended to go resting on a transverse region of the pole 92, i.e. on a surface or face of the pole 92 that is positioned transversely with respect to the longitudinal development of the pole 92 (and thus it is transverse also to the longitudinal axis 200 of the tubular cavity 20).
  • this transverse region is a transverse top face 925 of the pole 92, i.e. the top end of the pole 92.
  • the interference portion 21 forms a narrowing or an occlusion of the passage cross-section of the tubular cavity 20, so as to interfere with the pole 92 and to block a further advancing of the pole 92 into the tubular cavity 20 itself.
  • the interference portion 21 is formed by a closure (for example a seam, properly reinforced) of the first end 201.
  • a closure for example a seam, properly reinforced
  • the interference portion / closure 21 rests against or abuts on the top end 925 of the pole 92.
  • the interference portion 21 can be a narrowing or constriction of the tubular cavity 20 that does not completely occlude the passage cross-section.
  • the top of the pole 92 can partially protrude from the first end 201, while the interference portion 21 rests on an enlargement of the transverse cross-section of the pole or on a collar or a ring fastened to the pole so as to determine a cross-section enlargement.
  • the connection member 1 has an interference portion 21 that is configured to interfere with the pole 92.
  • the interference portion 21 When the interference portion 21 is resting or abutting on the pole 92, i.e. in the mounted condition, the interference blocks a relative movement of the connection member 1 with respect to the pole 92 along a first direction, i.e. along a direction corresponding to the insertion of pole 92 into the tubular cavity 20.
  • the resting interference allows a relative movement along a second direction opposite the first direction, i.e. along a direction corresponding to the drawing of the pole 92 out from the tubular cavity 20.
  • the interference implements a connection with a unidirectional locking between the connection member 1 and the pole 92. Furthermore, this is a removable locking, since the movement along the drawing direction is not prevented.
  • the tubular body 2, and then the connection member 1, is made of a flexible material.
  • the tubular body 2 is made of the same material of the sheet 93, of a synthetic fabric or of a plastic foil.
  • connection member 1 can be associated with the flexible sheet 93, in particular to a side edge 932 of the latter, to obtain an assembly 10 comprising the sheet 93 and the connection member 1 that extends along the side edge 932.
  • connection member 1 is fastened by sewing to the side edge 932 of the sheet 93.
  • connection member 1 is made in a single piece with the flexible sheet 93, i.e. there is continuity of material from the flexible sheet 93 to the connection member 1.
  • Said assembly 10 is then obtained from a foil of fabric or other material, which is cut to the size of the sheet 93 increased by the size of the connection member 1.
  • the cut foil is tube-like folded at a side edge 932, thereby defining the tubular body 2 and the tubular cavity 20, and it is fastened (for example, by sewing) to obtain the connection member 1.
  • the top end 201 is closed and / or sewn to make the interference portion 21.
  • an assembly 10 comprising a flexible sheet 93 and a connection member 1 is obtained, wherein the tubular body 2 is positioned along a side edge 932 of the flexible sheet 93.
  • the assembly 10 is intended to be mounted on a pole 92.
  • the connection member 1 is a part of a mounting system for mounting the flexible sheet 93 on the pole 92, in particular for implementing a removable mounting that allows the disconnection of the sheet 93 from the pole 92.
  • connection member 1 extends beyond a top edge 933 of the flexible sheet 93, forming an appendix or extension of the side edge 932 beyond the top edge 933.
  • the tubular body 2 is positioned along at least a portion of the side edge 932 of the flexible sheet 93 and also protrudes from the top forming a sleeve-shaped appendix 11.
  • the interference portion / closure 21 is at the top 201 of the sleeve-shaped appendix 11.
  • the length L1 of the connection member is greater than the length L93 of the edge 932 of the flexible sheet 93.
  • the sheet has a height L93 (i.e., the length of edge 932) which is of 50 cm, while the sleeve-shaped appendix 11 protrudes from the top edge 933 with a length L11 of about 30 cm. Due to the standard height of the poles of the gates, this causes the bottom edge 934 of the sheet 93 to be at a height of about 1 m above the ground / snow blanket 90.
  • the top 925 of the pole 92 is inserted into the tubular cavity 20 of the connection member 1 through the access opening 22.
  • the connection member 1 and the flexible sheet 93 are slid towards the bottom of the pole 92 as far as the interference portion 21 (in particular, the top end 21 of the connection member 1) abuts or rests on a section of the pole 92 (in particular, its top 925).
  • a length 921 of the pole 92 is housed in the tubular cavity 20 and the interference between the parts (i.e., between the top closure 21 of the tubular cavity 20 and the top face 925 of the pole 92) blocks a further movement of the connection member 1 towards the bottom of the pole 92.
  • the side edge 932 of the flexible sheet 93 is fastened to the pole 92 so that a downward movement of the side edge 932 itself, i.e. a movement towards the bottom of the pole 92, is prevented.
  • a downward movement of the side edge 932 itself i.e. a movement towards the bottom of the pole 92
  • an upward movement of the side edge 932 i.e. a movement towards the top of the pole 92, is allowed.
  • the flexible sheet 93 can be removed from the pole 92 by simply pulling the flexible sheet 93 upwards, i.e. towards the top of the pole 92, along a direction opposite to that of insertion.
  • the tubular body 2 of the connection member 1 is slipped on the pole 92 to a resting position that prevents a downward displacement of the connection member 1 and of the flexible sheet 93.
  • connection member 1 forms a sleeve-shaped appendix 11 that extends beyond a top edge 933 of the flexible sheet 93.
  • connection member 1 covers the pole length that protrudes from the top edge 933, and rests on the top 925 of the pole.
  • a giant-slalom gate 9 comprises an inner pole 91 and an outer pole 92.
  • the outer side edge 932 of the flexible sheet 93 is mounted on the outer pole 92 by the connection member 1.
  • the inner side edge 931 of the flexible sheet 93 is mounted on the inner pole 91, in such a way that the flexible sheet 93 extends between the inner pole 91 and the outer pole 92.
  • connection between the inner side edge 931 and the inner pole 91 may be a permanent fastening or a prior-art removable fastening; in particular, it is required that a movement of the inner side edge 931 towards the top 915 of the inner pole 91 is prevented.
  • a removable fastening is implemented by a clip 98 of a known type (shown for example in Figure 10 ), which is snap fastened on the pole 91 and is released from the pole 91 when the sheet 93 is pulled with a certain force; the fastening on the inner pole 91 can otherwise be made by an elastic band or other known modes.
  • the inventor of the present disclosure has observed that, in the prior-art gates, when the skier 99 hits against the inner pole 91 without entering but forcing the inner pole 91 to bend, the flexible sheet 93 (in particular its inner edge 931) tends to move upwards along the inner pole 91, in the direction of drawing, whereas the same flexible sheet 93 (in particular its outer edge 932) tends to move downwards along the outer pole 92, in the direction of the ground 90.
  • the flexible sheet 93 can be fastened to the inner pole 91 by a known system (in particular, by a clip 98) which prevents the upward slipping off, and can be fastened to the outer pole 92 by a connection member 1 that, as discussed above, prevents the downward movement thanks to the resting interference of the interference portion 21 of the connection member 1 on a transverse region of the pole 92. Thanks to this, the flexible sheet 93 stays stretched and extended between the poles 91, 92 also after impacts (without entering) of the skier 99 against the inner pole 91.
  • the outer side 932 of the flexible sheet 93 is disconnected from the outer pole 92, thereby releasing the skier 99 from the hindrance of the flexible sheet 93.
  • the detachment of the flexible sheet 93 from only one of the poles 91, 92 is sufficient for setting the skier 99 free; in particular, the present inventor has realized that the detachment of the sheet 93 from the outer pole 92 is sufficient.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
EP13170035.3A 2012-06-01 2013-05-31 System de fixation pour la fixation changeable d'une feuille flexible sur une tige Withdrawn EP2668982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000112A ITVR20120112A1 (it) 2012-06-01 2012-06-01 Sistema di montaggio rimovibile di un telo flessibile su un palo, in particolare per una porta da slalom gigante, super g, o discesa libera.
IT000225A ITVR20120225A1 (it) 2012-11-12 2012-11-12 Sistema di montaggio rimovibile di un telo flessibile su un palo, in particolare per una porta da slalom gigante, super g, o discesa libera.

Publications (1)

Publication Number Publication Date
EP2668982A1 true EP2668982A1 (fr) 2013-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170035.3A Withdrawn EP2668982A1 (fr) 2012-06-01 2013-05-31 System de fixation pour la fixation changeable d'une feuille flexible sur une tige

Country Status (1)

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EP (1) EP2668982A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600094473A1 (it) * 2016-09-20 2018-03-20 Liski S R L Telo per una porta per varie discipline sciistiche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702985A1 (fr) * 1994-09-26 1996-03-27 Hans Hinterholzer Poteau porte-fanion de slalom géant
AT5066U2 (de) * 1996-11-20 2002-03-25 Hinterholzer Hans Torflagge für den skisport
US20060163552A1 (en) * 2005-01-10 2006-07-27 Reliable Racing Supply, Inc. Gate panel assembly
WO2010103205A1 (fr) * 2009-03-13 2010-09-16 Antoine Costa Piquet support de filet pour baliser une aire de jeu, telle qu'une piste de ski

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702985A1 (fr) * 1994-09-26 1996-03-27 Hans Hinterholzer Poteau porte-fanion de slalom géant
AT5066U2 (de) * 1996-11-20 2002-03-25 Hinterholzer Hans Torflagge für den skisport
US20060163552A1 (en) * 2005-01-10 2006-07-27 Reliable Racing Supply, Inc. Gate panel assembly
WO2010103205A1 (fr) * 2009-03-13 2010-09-16 Antoine Costa Piquet support de filet pour baliser une aire de jeu, telle qu'une piste de ski

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600094473A1 (it) * 2016-09-20 2018-03-20 Liski S R L Telo per una porta per varie discipline sciistiche

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