EP0191001B1 - Vorrichtung zum lösbaren Befestigen von hohlen zylindrischen Mastelementen für Transportzwecke - Google Patents

Vorrichtung zum lösbaren Befestigen von hohlen zylindrischen Mastelementen für Transportzwecke Download PDF

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Publication number
EP0191001B1
EP0191001B1 EP86830009A EP86830009A EP0191001B1 EP 0191001 B1 EP0191001 B1 EP 0191001B1 EP 86830009 A EP86830009 A EP 86830009A EP 86830009 A EP86830009 A EP 86830009A EP 0191001 B1 EP0191001 B1 EP 0191001B1
Authority
EP
European Patent Office
Prior art keywords
hollow cylindrical
cylindrical elements
mast
seats
seat
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.)
Expired
Application number
EP86830009A
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English (en)
French (fr)
Other versions
EP0191001A1 (de
Inventor
Enzo Scaglia
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT86830009T priority Critical patent/ATE37510T1/de
Publication of EP0191001A1 publication Critical patent/EP0191001A1/de
Application granted granted Critical
Publication of EP0191001B1 publication Critical patent/EP0191001B1/de
Expired 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 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/0083—Masts for sailing ships or boats

Definitions

  • the present invention relates to a device for removably connecting two coaxial hollow cylindrical male and female elements, respectively, which can be telescoped into each other for a predetermined length and belong to two mast sections or to a mast top and to a mast heel or to a mast cap in masts for transport means, particularly light sailing boats, such as boarders, wind-surfs and the like.
  • the light boats and transport means of the above-defined kind are provided with a mast generally formed of an aluminium tube having a length of 4,40 4,60 meters, which is intended to be removably secured to the hull by means of an articulated joint and to be closed at the upper end by a "cap" which retains the sail in position.
  • a mast generally formed of an aluminium tube having a length of 4,40 4,60 meters, which is intended to be removably secured to the hull by means of an articulated joint and to be closed at the upper end by a "cap” which retains the sail in position.
  • this severing involves the need of providing a connecting device which can be quickly and readily locked and unlocked and assures at the same time a perfect retention of the strength characteristics of an integral mast, and this under the operative and environmental conditions in which the transport means of concern are.
  • This device under the above-mentioned conditions, could be applied also in the case of the removable fastening of the mast heel to the articulated joint as well as the cap to be mast head.
  • the above-mentioned connecting devices are in a position to impart to the mast a good hermetic seal not only with respect to the solid matters which can penetrate it but also, in the case of boats, with respect to the water which would unduly make heavy the mast when it is hoisted from the liquid surface to the operative position on the wind-surf.
  • FR-A-2 446 401 discloses a removably connecting device according to the preamble of claim 1, particularly for mast heels of a wind-surf, comprising a female cylindrical housing forming an anchoring bush, a male ferrule intended to be introduced into said housing of the anchoring bush and a ring of a relatively flexible material, which is designed to assure a connection between the male ferrule and the female bush.
  • the ferrule is provided with first and second grooves being separated from each other without a transition region by an intermediate cylindrical portion.
  • This removably connecting device has the female housing provided with a cup for receiving the end of the male ferrule in order to fasten these elements to each other.
  • a removably connecting device of the type comprising at least a packing means movable on the surface of one of the two substantially hollow cylindrical elements facing the other of the two substantially hollow cylindrical elements from an unlocked position in which it lies in a seat, to a locked position in which it lies in another seat, characterized in that the two seats are connected therebetween by a shaped section which causes the squeezing of the packing element during the axial insertion and extraction movements of the two portions, said shaped section between the seats including a substantially cylindrical top wall as well as side walls inclined towards said seats.
  • said packing means is a so called O-ring having a toroidal shape circular in cross-section and of elastic material assuring a substantial water seal to the joint, although this joint is made by hand in a very simple manner by axial forced insertion movement of the two elements.
  • This insertion movement causes a rolling movement of the packing means on itself, with displacement from the first to the second positions both defined by circumferential seats provided on one of the facing surfaces of the substantially hollow cylindrical elements to be coupled.
  • the 0-ring In the second position the 0-ring is elastically deformed and locks thereby the two hollow cylindrical elements, by exerting the necessary sealing action and imparting the desired strength characteristic to the connection.
  • this invention finds a particular even if not exclusive application in light sailing transport means which are movable on sand, land, ice, water or the like.
  • the application that at present is considered of most interest is in masts of the light boats such as boarders, wind-surfs and the like, which masts have often a not excessive length in order to permit an easy transport and storage thereof and which, for example in the case of wind-surfs, are removably connected at one end to an articulated joint secured to the body and at the opposite end are provided with a closure element, called "cap”, which cooperates in retaining in position the sail threaded on the mast.
  • cap closure element
  • the mast 10 for example made of aluminium, is formed of two coaxial hollow slightly frusto-conical cylindrical elements 10a, 10b or of any other geometrical shape, which are locked to each other by an intermediate connecting device 12.
  • a connecting device 12a is provided at the mast heel, between the lower end thereof and a male support 14 pivotally connected through a buffer 16 to the wind-surf body, indicated at 18.
  • the upper portion 10a of mast terminates with a so called “cap” 20 inserted into the free upper end of the mast and locked thereto by means of a connecting device 12b according to the invention.
  • connection device 12 comprises two male and remale coaxial hollow cylindrical portions 22 and 24 which are so dimensioned that the male portion 22 can penetrate the female portion 24 for a sufficient length to assure a desired strength of the assembly, the penetration degree being determined by an abutment 26 provided on the mast element carrying the male portion, against which the free end of the female portion 24 abuts.
  • the end zone of the male hollow cylindrical portion 22 is shaped as shown in the Figures, for example by a local deformation operation of the surface, such as rolling or the like, so as to form two circumferential seats 28 and 30 being axially spaced from each other and having a different depth.
  • the seat 28 is formed by a groove the bottom of which is closer to the axis 32 of the hollow cylindrical portions than the bottom of the groove forming the seat 30.
  • both seats 28, 30 are connected to each other by a shaped section outwardly projecting from the bottom of the seats with respect to the axis 32.
  • this shaped section as a substantially cylindrical top wall 34 and two side wall 36, 38 inclined towards the seats 28 and 30, respectively.
  • the wall 36 inclined towards the seat 28 has a lower slope than that of the wall 38 inclined towards the seat 30.
  • a movable packing means which is formed of a toroidal elastic element 40, circular in cross-section (0-ring) and which in the unlocked condition of the two hollow cylindrical portions 22, 24, lies within the seat 28 facing the female portion 24.
  • connection is operative and the two portions 22, 24 are locked to each other and axially retained, in a sufficient manner for the application of the invention, by the friction exerted by the O-ring 40 within the seat 30, where it is squeezed, and by the ramp formed by the wall 38.
  • the device can operate as well if the shaped section and the seats are provided on the female portion 24, while the male portion is provided with a smooth surface.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Earth Drilling (AREA)
  • Toys (AREA)

Claims (5)

1. Vorrichtung zum lösbaren Befestigen von zwei koaxialen im wesentlichen hohlen zylindrischen Einschiebe- und Aufnahmeelementen (22, 24), die auf eine bestimmte Länge teleskopartig ineinander geschoben werden können und die zu zwei Mastabschnitten, oder zu einem Mastkopf und zu einem Mastfuß, oder zu einer Mastkappe, in Masten für Transportmittel, insbesondere leichte Segelboote, der Art von Schwertbooten, Surfbrettern und dgl. gehören, bestehend aus einer Dichtung (40), die auf der Oberfläche des einen (22) der beiden im wesentlichen hohlen zylindrischen Elemente (22, 24), welches dem anderen (24) der beiden im wesentlichen zylindrischen Elemente (22, 24) gegenüberliegt, von einer unverriegelten Stellung, in der die Dichtung sich in einem Sitz (28, 30) befindet, in eine verriegelte Stellung, in der sie sich in einem anderen Sitz (30, 28) befindet, verschiebbar ist, dadurch gekennzeichnet, daß diese Sitze durch einen Profilabschnitt miteinander verbunden sind, der ein Zusammendrücken der Dichtung während der axialen Einschiebe- bzw. Ausziehbewegung der im wesentlichen hohlen zylindrischen Elemente (22, 24) bewirkt, wobei dieser Profilabschnitt eine im wesentlichen zylinder förmige obere Wand (34) sowie zu den Sitzen geneigte Seitenwände (36, 38) umfasst.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtung (40) aus elastischem Material hergestellt ist und eine toroidförmige Gestalt, vorzugsweise von kreisförmigen Querschnitt (O-Ring), aufweist.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Neigung der Seitenwand (36), die zum Sitz (28) gerichtet ist, der der unverriegelten Stellung der hohlen zylindrischen Elemente (22, 24) entspricht, geringer ist als diejenige der Seitenwand (38), die zum Sitz (30) gerichtet ist, der der verrriegelten Stellung dieser Elemente entspricht.
4, Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sitze (28, 30) und die Profilabschnitte (34, 38), die einen Durchgangsabschnitt bilden, mittels einer örtlichen Verformung der Außenfläche des Einschiebeelements (22) vorgesehen sind, während das Aufnahmeelement (24) eine im wesentlichen glatte Innenfläche aufweist.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sitze (28, 30) und der Profilabschnitt (34-38), der einen Durchgangsbereich durch dieselben bildet, mittels einer örtlichen Verformung der Innenfläche des Aufnahmeelements (24) gebildet sind, während das Einschiebeelement (22) eine im wesentlichen glatte Außenfläche aufweist.
EP86830009A 1985-01-31 1986-01-17 Vorrichtung zum lösbaren Befestigen von hohlen zylindrischen Mastelementen für Transportzwecke Expired EP0191001B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86830009T ATE37510T1 (de) 1985-01-31 1986-01-17 Vorrichtung zum loesbaren befestigen von hohlen zylindrischen mastelementen fuer transportzwecke.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI1985U20659U IT8520659U1 (it) 1985-01-31 1985-01-31 Dispositivo per il collegamento scioglibile fra parti cilindriche, in alberi per mezzi di trasporto a vela
IT2065985U 1985-01-31

Publications (2)

Publication Number Publication Date
EP0191001A1 EP0191001A1 (de) 1986-08-13
EP0191001B1 true EP0191001B1 (de) 1988-09-28

Family

ID=11170181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830009A Expired EP0191001B1 (de) 1985-01-31 1986-01-17 Vorrichtung zum lösbaren Befestigen von hohlen zylindrischen Mastelementen für Transportzwecke

Country Status (5)

Country Link
EP (1) EP0191001B1 (de)
JP (1) JPS61132188U (de)
AT (1) ATE37510T1 (de)
DE (1) DE3660798D1 (de)
IT (1) IT8520659U1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8711778U1 (de) * 1987-08-31 1988-02-11 North Sails Windsurfing GmbH, 8122 Penzberg Mast für ein Segel
GB2221735B (en) * 1988-08-09 1993-02-10 Nat Nuclear Corp Ltd A coupling device
FR2751936B1 (fr) * 1996-07-31 1998-09-04 Houdeville Laurence Ensemble d'elements pour la realisation d'un jeu de plusieurs mats de planche a voile de longueur et de flexibilite differentes composees de plusieurs parties juxtaposees par emboitement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446401A1 (fr) * 1979-01-09 1980-08-08 Losserand Paul Dispositif de fixation amovible, en particulier pour pied de mat de planche a voile
FR2509250A1 (fr) * 1981-07-10 1983-01-14 Morisseau Roger Mat demontable pour voilures legeres

Also Published As

Publication number Publication date
JPS61132188U (de) 1986-08-18
DE3660798D1 (en) 1988-11-03
IT8520659U1 (it) 1986-07-31
ATE37510T1 (de) 1988-10-15
IT8520659V0 (it) 1985-01-31
EP0191001A1 (de) 1986-08-13

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