EP0048196A1 - Steckteil- und Hülsenvorrichtung für den Mastfuss eines Windsurfbrettes - Google Patents

Steckteil- und Hülsenvorrichtung für den Mastfuss eines Windsurfbrettes Download PDF

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Publication number
EP0048196A1
EP0048196A1 EP81401379A EP81401379A EP0048196A1 EP 0048196 A1 EP0048196 A1 EP 0048196A1 EP 81401379 A EP81401379 A EP 81401379A EP 81401379 A EP81401379 A EP 81401379A EP 0048196 A1 EP0048196 A1 EP 0048196A1
Authority
EP
European Patent Office
Prior art keywords
socket
tip
assembly
end piece
sleeve
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Withdrawn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
EP81401379A
Other languages
English (en)
French (fr)
Inventor
Paul Losserand
François Losserand
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.)
LOSSERAND FRANCOIS
Original Assignee
LOSSERAND FRANCOIS
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
Application filed by LOSSERAND FRANCOIS filed Critical LOSSERAND FRANCOIS
Publication of EP0048196A1 publication Critical patent/EP0048196A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/68—Mast foot attachments, e.g. mast foot rails

Definitions

  • the mast foot can be provided with an end piece intended to be vertically embedded in a socket integral with the windsurf board and to be retained therein by elastic elements interposed between the internal surface of the sleeve and the external surface of the nozzle and allowing the disassembly of the nozzle by pulling upwards.
  • the object of the invention is to propose an assembly tip in a socket which allows an elastic engagement without organs-elastic separable from the tip and which on the other hand allows the embedding under the action of a force significantly less than that necessary to allow the extraction of the 'tip.
  • the invention has been designed for mounting a mast foot on a windsurfing board, it is understood that it can be applied to the assembly of a nozzle and a socket in any other application of 'such an assembly.
  • the socket and the end piece can be molded from a synthetic material and, while the socket has on its internal face a projecting retaining crown, the end piece has on its external face projecting elastic parts integral with the body of the endpiece and intended to cross by friction the projecting crown of the socket while being retained after embedding by the shoulder which constitutes the base of the projecting crown of the socket.
  • the sleeve retaining crown may have a profile which is slightly inclined towards the axis from its upper edge while being more inclined towards the axis from its lower edge, the two parts thus inclined in opposite directions connected by a rounded part.
  • the different inclinations of the two parts of the profile of the projecting crown of the socket have the effect, as will be explained in the following description, of allowing the fitting of the end piece in the socket under less effort than that necessary to allow extraction.
  • the elastic parts of the end piece which cooperate with the protruding profile of the socket are distributed in small numbers along a peripheral line of the surface of the end piece so as to allow frictional embedding at a small number of points. evenly distributed around the perimeter of the nozzle.
  • the elastic parts in question will be constituted by two hemiphers provided for molding the end piece in two diametrically positions opposite in parts of this tip having the desired elasticity.
  • the hemispherical shape allows the mobility of the recessed tip in its housing and reduces the wear of the cooperating parts by friction.
  • Such projections may constitute, for example, ramps distributed over the periphery of the endpiece and oriented along generatrices of the cylindrical surface of the endpiece.
  • the sleeve retaining crown can be designed to allow the tip retaining force to be adapted to the different categories of windsurfing users. It is in fact understood that for novice users, in particular children attending sailing schools, the conditions of use do not make it necessary to retain the tip in the socket significantly while their limited physical means require that the force to manually exert on the tip, to extract it from the socket after using the windsurf board, is reduced. On the other hand, for adults well accustomed to the use of windsurfing and practicing this sport in more difficult conditions, greater retention of the tip is necessary without this being a particular disadvantage for manual extraction of the tip after using the windsurfing board, due to the greater physical possibilities of this category of users.
  • the inner retaining ring carried by the sleeve consists of several sectors having radially different widths, that is to say more or less projecting inside the sleeve, so that, depending on whether the elastic bosses of the endpiece are engaged under sectors of the retaining ring which project more or less radially, the retaining force of the endpiece inside the socket is more or less strong.
  • the retaining ring carried by the sleeve will have diametrically opposite sectors of the same radial width so that the two bosses cooperate with sectors of the same width and therefore ensuring the same holding force.
  • each sleeve retaining half-crown has three equal sectors, each corresponding to an angle of 60 °, each sector being of constant radial width but the three successive sectors being of radially increasing width so to constitute, for the mouthpiece, a moderate retention zone (corresponding to the narrower sector) suitable for beginners, an average retention zone (corresponding to the medium width sector) for users with modest performances, and a zone strong restraint (corresponding to the widest sector) for experienced users.
  • the zones of different widths of the sleeve retaining crown are separated from each other by radial stops which advantageously extend to the upper edge of the sleeve and which serve to guide the end piece, when the position thereof has been chosen so that its bosses come opposite the appropriate sectors of the sleeve retaining crown, for the insertion of the nozzle into the sleeve. It is understood that, for example when an informed user wishes to use a windsurfing board after a beginner, he will extract the end piece from the socket, then cause the latter to rotate about 120 ° so that its bosses come opposite the sectors of greater width of the sleeve retaining crown before again embedding the end piece in the sleeve.
  • the subject of the invention is also a means of rapid fixing of the sockets in question in windsurfing boards, during the manufacture of these, and this means consists of a plate, for example of molded plastic, which has a cutout circular with a diameter slightly higher than that of the body of the sleeve and which is intended to be applied against the internal face of the upper element of the windsurfing board so that its circular cutout comes opposite the well formed in the upper element.
  • the body of the sleeve is then introduced through the well and the circular cutout until the collar of the sleeve head comes to rest against the upper edge of the well, and the sleeve is then locked in this position by a simple rotation which causes a lug of the sleeve body to cooperate with an area of increasing thickness of the plate.
  • the sleeve is thus held securely in its locked position and the operations of manufacturing the windsurf can be completed without risk of accidental displacement of the sleeve.
  • Figure 1 is indicated in 1 a molded socket of synthetic polymerized material intended to receive in a separable manner a nozzle which can also be molded in synthetic material.
  • the bushing internally has a projecting crown whose entry profile 2 is slightly inclined relative to the axis of the bushing while the opposite profile 3 is more inclined, these two profiles practically in truncated cones connecting by a surface of revolution 4 with curved generator
  • the tip 5, shown in Figure 2 advantageously comprises on its periphery two cavities 6 diametrically opposite in each of which has come from molding a hemispherical boss 7 projecting slightly outside the extension of the outer surface of the tip.
  • the dimensions of the bosses 7 are chosen so that the distance from their two most salient points is slightly greater than the internal diameter of the throttle formed by the projecting surface 4 of the sleeve while being slightly less than or practically equal to the normal internal diameter from the socket.
  • the engagement of the end piece in the socket requires the deformation by elastic compression of the bosses 7 of the end piece 5 when, by pushing the end piece into the socket 1, if the bosses 7 cross the part protruding 4 from the socket.
  • the compression is carried out by the profile 2 which is slightly inclined relative to the axis of the sleeve, which allows the bosses 7 to pass through the projecting crown of the sleeve without requiring excessive effort.
  • the end piece takes the position shown schematically in Figure 3.
  • the separation the tip is made by a reverse movement resulting from a pull on the tip but it requires the use of a greater force as a result of the greater inclination of the profile 3 relative to the axis.
  • the effort to push in or remove the tip depends not only on the diameters and thickness of the walls, but also on the hardness of the raw material constituting the tip or the socket, the proposed assembly presents the advantage of allowing embedding and extraction under the action of selected forces.
  • the hemispherical shape of the protruding parts of the tip has the advantage of leaving the tip a possibility of oscillation often desired, especially for a mast for windsurfing and it greatly reduces the risk of wear.
  • FIG. 4 there is shown at 8 a tip of another type carrying on its periphery four elastic projecting parts 9 each extending parallel to the axis by presenting towards the end of the tip a slightly inclined pan 10 on the axis and on the opposite side a more inclined side 11, the two sides 10-11 being joined by a part 12 parallel to the axis.
  • These projecting parts can cooperate with an internal projecting crown of the bushing having a profile similar to that shown in FIG. 1 and a fitting is also obtained, the fitting of which requires only the engagement of a force less than that ensuring the separation.
  • FIG. 5 there is shown a socket 21 with its projecting crown 22 consisting of two profiles 23,24 connecting by a surface of revolution 25.
  • the stops 31 serve to guide the introduction of the end piece into the socket for the chosen angular position of the bosses 7, and to prevent manual rotation of the end piece causing the passage of a sector of the crown 22 to the adjacent sector without prior extraction of the nozzle.
  • the sectors 28, of less restraint could be used for beginners and in particular for children having only a reduced physical force to manually extract the tip of the socket after using the windsurfing board.
  • the sectors 29 could thus be used more particularly for users of average skill and the sectors 30, of greater restraint, for the informed users.
  • FIG. 7 there is shown the plate 32 intended to allow the mounting side by side, according to the usual arrangement allowing two possibilities of installation of the mast, of two identical sockets 21 in the upper element of a windsurfing board. manufacturing course.
  • the plate 32 made of molded plastic, has two successive circular depressions 33 in the bottom of each of which is provided a circular central cut 34 bordered by a flat part 35.
  • Each circular cut 34 is continued by two diametrically opposite notches 36 and, on its underside, the edge of each cutout 34 has two semi-circular lips 37 arranged on either side of the diameter determined by the two notches 360
  • each lip 37 is of increasing thickness so that the maximum thickness end of a lip is adjacent to the minimum thickness end of the other, and each end of maximum thickness has a downward projection 38 forming a stop.
  • the assembly is carried out as shown in FIG. 8, that is to say that the plate 32 is applied against the internal face of the upper element 39 of the windsurf board so that the cutouts 34 come in look of the wells formed in the element 39 and that the parts in depression 33 are applied against the corresponding depressions 41 presented by the element 39. Then introduced into each well 40 the body of a socket 21 until that the upper flange 42 of this socket comes to bear against the bottom of the depression 41 after prior rotation of the socket to bring the lugs 43 presented by the body of the socket opposite the notches 36 of the plate 32.
  • the locking of the 'assembly is then obtained by rotation of the sleeve in the direction moving each lug 43 from the end of thinner thickness to the end of greater thickness of a lip 37, until blocking.
  • the plate 32 thus allows rapid and secure fixing of the sleeves 21 in the wells 40 of the upper element of the windsurf board, without the risk of accidental displacement of these sleeves during the operations for completing the manufacture of the board. sailing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP81401379A 1980-09-11 1981-09-04 Steckteil- und Hülsenvorrichtung für den Mastfuss eines Windsurfbrettes Withdrawn EP0048196A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8019641 1980-09-11
FR8019641A FR2489901A1 (fr) 1980-09-11 1980-09-11 Assemblage d'un embout dans une douille notamment pour un pied de mat de planche a voile

Publications (1)

Publication Number Publication Date
EP0048196A1 true EP0048196A1 (de) 1982-03-24

Family

ID=9245847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401379A Withdrawn EP0048196A1 (de) 1980-09-11 1981-09-04 Steckteil- und Hülsenvorrichtung für den Mastfuss eines Windsurfbrettes

Country Status (2)

Country Link
EP (1) EP0048196A1 (de)
FR (1) FR2489901A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR972195A (fr) * 1948-05-28 1951-01-26 Aerolex Ltd Perfectionnements aux dispositifs de retenue pour pièces démontables de support oud'assemblage
FR2010407A1 (de) * 1968-06-07 1970-02-13 Streater Ind Inc
US3679244A (en) * 1970-09-21 1972-07-25 Robert R Reddy Releasable shaft lock
DE2713650A1 (de) * 1977-03-28 1978-10-05 Siemens Ag Fuegeverbindung zweier kunststoffteile
DE2901760A1 (de) * 1979-01-18 1980-07-31 Ostermann Windglider Mastfussicherung fuer windsurfbretter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR972195A (fr) * 1948-05-28 1951-01-26 Aerolex Ltd Perfectionnements aux dispositifs de retenue pour pièces démontables de support oud'assemblage
FR2010407A1 (de) * 1968-06-07 1970-02-13 Streater Ind Inc
US3679244A (en) * 1970-09-21 1972-07-25 Robert R Reddy Releasable shaft lock
DE2713650A1 (de) * 1977-03-28 1978-10-05 Siemens Ag Fuegeverbindung zweier kunststoffteile
DE2901760A1 (de) * 1979-01-18 1980-07-31 Ostermann Windglider Mastfussicherung fuer windsurfbretter

Also Published As

Publication number Publication date
FR2489901A1 (fr) 1982-03-12

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