EP0170875A1 - Fixation du pied d'un mât de planche à voile - Google Patents

Fixation du pied d'un mât de planche à voile Download PDF

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Publication number
EP0170875A1
EP0170875A1 EP85108161A EP85108161A EP0170875A1 EP 0170875 A1 EP0170875 A1 EP 0170875A1 EP 85108161 A EP85108161 A EP 85108161A EP 85108161 A EP85108161 A EP 85108161A EP 0170875 A1 EP0170875 A1 EP 0170875A1
Authority
EP
European Patent Office
Prior art keywords
mast
groove
pin
mast foot
locking pin
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Withdrawn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
EP85108161A
Other languages
German (de)
English (en)
Inventor
Walter Dr. Ing. Knabel
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.)
AKUTEC Angewandte Kunststofftechnik GmbH
Original Assignee
AKUTEC Angewandte Kunststofftechnik GmbH
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 AKUTEC Angewandte Kunststofftechnik GmbH filed Critical AKUTEC Angewandte Kunststofftechnik GmbH
Publication of EP0170875A1 publication Critical patent/EP0170875A1/fr
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
    • B63H8/24—Arrangements for connecting the rigging to a board

Definitions

  • the invention relates to a Mastfußhalterunq according to the preamble of claim 1.
  • a mast foot bracket of this type is described and shown in DE-OS 32 29 91o.
  • the mast base has an axial, round pin, the tip of which is tapered and an annular groove is located in the lateral surface above the conical taper.
  • the mast-carrying element connected to the sail board is provided with a bore in which a spring-loaded locking pin with radial movement play is held as a locking element, which cuts the bore like a chord or secantial. If the mast base is pressed into the hole, the conical tip of the mast base pin pushes the locking pin radially outwards against its spring force, and when fully inserted, the locking pin snaps into the ring groove of the mast base pin. This creates a positive connection between the mast foot and the sail board.
  • the pull-out force can be adjusted by changing the spring preload force for the locking pin.
  • the spring tension is released by a button, so that the mast base can be pulled out of the bore without the application of an axial force that overcomes the spring tension.
  • This solution allows a relatively simple insertion of the mast foot into the hole, however, when the mast foot bracket is loosened arbitrarily, two handles have to be actuated at the same time, namely on the one hand the button to release the spring tension and on the other hand the pulling out of the mast foot from the hole. This can be very difficult, if not impossible, in adverse conditions.
  • the mast base is tubular.
  • tongues formed by U-shaped slots are arranged, which carry locking heads.
  • the mast foot designed in this way is pushed into a sleeve fastened to the sail board, which is provided with axially extending grooves, into which the latching heads engage during the axial insertion. After the axial insertion movement, the mast foot is rotated in the circumferential direction, the locking heads snapping into trough-shaped locking points.
  • the invention has for its object to design a mast foot bracket of the type described in such a way that the arbitrary separation of the mast from Se g elbrett can be achieved with easier handling.
  • the main advantage of the design according to the invention is that the arbitrary separation of the mast from the sail board does not require the actuation of a special link to release the spring tension, and this separation can therefore take place in the sense of a so-called one-hand operation.
  • This requires ledi g- Lich first rotation of the mast in scope Direction in which the locking pin is displaced radially outwards into a position releasing the mast base. After this rotation in the circumferential direction, the mast can be pulled axially out of its receptacle.
  • the advantage is preserved that the mast foot can be inserted into the receptacle in any angular position relative to the sailing board.
  • the locking pin which is under spring tension, either snaps automatically into the groove or a rotation of the mast foot into a position in which the groove lies next to the locking pin and automatically locks it into the groove.
  • the mast is secured against rotation by the flat contact of the locking pin on the groove base.
  • a rotation lock e.g. required by a mast foot lever, such as may be necessary in the asu design according to claim 2. omitted.
  • the embodiment according to claim 12 also leads to the same advantage.
  • the configurations according to claims 3 and 5 each lead individually and in combination to a trouble-free separation function of the mast from the sail board in the event of overload.
  • the configurations according to claims 4 and 6 serve the same purpose, in particular the round design of the locking pin enables a favorable course of the displacement of the locking pin when the mast foot pin is inserted into the receptacle.
  • the embodiment according to claim 4 is advantageous because in the locked position of the locking pin there are free spaces in the area of the groove base into which dirt can be displaced, so that the locking of the locking pin is ensured to a high degree.
  • the mast base is made of plastic. It can therefore g known from Kunststoffbearbeitun advantages such as easy machinability or mild form of education, be exploited. It is recommended within the meaning of claim 9 to manufacture the mast foot pin and the mast foot pin lever known per se in one piece from plastic.
  • the embodiment according to claim 1o is particularly advantageous if a mast foot pin made of plastic is used.
  • the flattening according to the invention runs out into the groove, a linear edge or a linearly extending edge being formed at this outlet, against which the locking pin rests linearly during the separating function.
  • the release function of the locking pin is improved, in particular in the case of forced release.
  • This configuration according to the invention is particularly suitable for plastic mast feet.
  • the configuration according to the invention is particularly suitable when using this material because, due to the elasticity or plasticity of this material, there is a low surface pressure which enables a defined triggering as described above.
  • the mast foot bracket In the Fi g . 1, only the mast foot bracket, generally designated 1, is shown as a whole, while the sailing board and the mast are only partially visible for reasons of simplification. From the mast, only one mast foot 2 serving as a holder and a universal joint 3 known per se above the mast foot 2 are visible.
  • the mast foot spigot 2 is made of plastic and is screwed to the universal joint 3 by a cap screw 4 which grips it axially in a bore.
  • a so-called mast foot lever 5 which is also made of plastic and, in a preferred embodiment, is made in one piece with the mast foot pin 2.
  • the mast base 2 is tapered in the shape of a truncated cone towards its free end.
  • a groove 8 of trapezoidal cross-section, which extends secantially, is worked into the lateral surface 6 of the mast foot pin 2, just above the conical section 7.
  • the side facing the pin nose side wall 9 extends the groove 8 obliquely to the pin tip and ends with a right angle to the longitudinal axis 11 of the mast 2 and Mastfußzapfens directed plane E at an angle w of about 25 0 a.
  • the mast foot pin 2 is flattened by a flat surface 12 on the side facing the pin tip.
  • the surface 12 runs on the one hand into the groove 8 and forms a linear edge 13 in the cutting area, which is broken or rounded.
  • On the pin of the p Itze side facing the surface 12 runs out in the region of the conical portion. 7 It should also be emphasized that the surface 12 runs parallel to the groove 8 or the groove base 14.
  • the mast base pin 2 In the inserted position, the mast base pin 2 is received in a receptacle of the sailing board, generally designated 15, with little movement play, which is formed by a bore. In this position, the mast can be against rotation in the circumferential direction by a secure e-g to 5 disposed projection 16 on the underside of Mastfußhebels which can be inserted in a recess in the sailboard, in a preferred manner with snap effect.
  • a locking pin 17 with a round cross section is used, which extends opposite the groove 8 tangentially to the receptacle 15 and is radially adjustable to the mast base pin 2 in a space (not shown) in the segment board 1.
  • the locking pin 17 is aligned transversely to the sail board and transversely to the mast foot lever 5 and held in two spaced-apart lever arms 18 which can be pivoted about a pivot axis 19 running parallel to the locking pin 17.
  • the locking pin 17 is thus freely movable on an arcuate movement path that extends approximately radially to the mast base 2.
  • the arrangement is such that the locking pin 17 is received in the position shown in solid lines in Fig. 1 in the groove 8 for the purpose of holding the mast. In the position shown with broken lines, the locking pin 17 is located outside the groove 8.
  • the space mentioned above in the sail board or in the element 22 supporting the mast is so large that the lever arms 18 also have freedom of movement.
  • the locking pin 17 is acted upon by a compression spring 23 in the direction g on the groove 8, which extends in a guide generally designated 24 and at its end facing away from the locking pin 17 on a threaded nut 25 , supports.
  • the tension of the compression spring 23 is adjustable by means of the threaded nut 25.
  • stops ensure that the locking pin 17 is not pushed further into the receptacle 15 by the compression spring 23 than is determined by its latching position.
  • the distance between the lever arms 18 is of course dimensioned so large that they do not protrude into the receptacle 15.
  • the mast foot pin 2 is inserted into the receptacle 15 from above.
  • the conical section 7 strikes the locking pin 17 and displaces it into the position shown in broken lines in FIG. 1 against the spring tension.
  • the locking pin 17 snaps automatically.
  • the mast must be rotated, g gbf. by manual actuation on the mast foot lever 5, whereby the locking pin 17 and the groove 8 are brought into overlap and the locking pin 17 snaps automatically.
  • the locking pin 17 not only secures the mast axially by its abutment on the side wall 9, but also against rotation in the circumferential direction by its abutment on the groove base 14.
  • an inclined side wall 9 is not absolutely necessary.
  • the force component described above can also be achieved if a radially extending side wall 9 is provided, but the depth t of the groove 8 is less than the radius r of the locking pin 17.
  • the depth t of the groove 8 is approximately the same dimensioned like the radius r of the locking pin 17th
  • a second groove 26 is machined into its outer surface 6, which also extends secantially.
  • the second groove 26 is located with the first groove 8 in the same transverse plane and is used in a rotation of the mast to 18 0 ° with the locking pin 17 in Uber cover, wherein the cross section of the second groove 26 is dimensioned such that the lock pin 17 also can fall into these.
  • the essential difference between the design of the first groove 8 and the second groove 26 is that the side wall 27 of the second groove 26 facing the pin tip does not run obliquely, but rather approximately radially to the mast foot pin 2. It is also important that the depth u of the second groove 26 is dimensioned so large that the round locking pin 17 can fall into the second groove 26 beyond its center. Because of this configuration, when the second slot 26 Locking pin 17 a forced release is not possible because a force component 28 described above does not occur when the mast is axially loaded in the direction of arrow 29.
  • the configuration according to the invention enables the operator to selectively set the mast foot bracket with forced release and that without forced release. All that is required is a rotation of the mast. can be supported by g or pressure on the mast foot lever 5.
  • the mast can also be easily and easily removed from the bracket without forced release. All that is required is a small rotation of the mast, in which the locking pin 17 is forced out of the second groove 26.
  • a plurality of locking pins and a plurality of grooves 8 for example in order to increase the holding force. It is also possible to use other groove and locking pin cross-sections, eg triangular cross-sections with a tip pointing towards the mast foot. It is also possible for a mast g fußhalterun without Zwan g sausling to arrange a special locking pin.
  • a difficulty may arise in that the remaining wall in the area of the groove 8 or 26 becomes too weak.
  • An advantageous solution to this problem consists in arranging the bore in the mast foot pin 2 eccentrically to the side facing away from the groove 8 or 26. In such a case, it is advantageous the grooves 8, 26 not diametrically opposite each other, but to be arranged, for example, in a quadrant of the mast base 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
EP85108161A 1984-07-04 1985-07-02 Fixation du pied d'un mât de planche à voile Withdrawn EP0170875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3424605 1984-07-04
DE3424605 1984-07-04

Publications (1)

Publication Number Publication Date
EP0170875A1 true EP0170875A1 (fr) 1986-02-12

Family

ID=6239826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108161A Withdrawn EP0170875A1 (fr) 1984-07-04 1985-07-02 Fixation du pied d'un mât de planche à voile

Country Status (2)

Country Link
EP (1) EP0170875A1 (fr)
JP (1) JPS6130480A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631859A1 (de) * 1986-09-19 1988-04-07 Hannes Marker Kupplung zum verbinden eines riggs mit einem segelbrett
GB2517402A (en) * 2013-06-24 2015-02-25 Mega Products Ltd Mast holder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE896277A (fr) * 1983-03-28 1983-09-28 Nat Herstal En Abrege Fn S A F Dispositif de reglage de l'emplanture du mat d'une planche a voile ou similaire
EP0101040A2 (fr) * 1982-08-11 1984-02-22 F 2 International Gesellschaft m.b.H. Fixation d'un pied de mât pour planche à voile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101040A2 (fr) * 1982-08-11 1984-02-22 F 2 International Gesellschaft m.b.H. Fixation d'un pied de mât pour planche à voile
BE896277A (fr) * 1983-03-28 1983-09-28 Nat Herstal En Abrege Fn S A F Dispositif de reglage de l'emplanture du mat d'une planche a voile ou similaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631859A1 (de) * 1986-09-19 1988-04-07 Hannes Marker Kupplung zum verbinden eines riggs mit einem segelbrett
GB2517402A (en) * 2013-06-24 2015-02-25 Mega Products Ltd Mast holder

Also Published As

Publication number Publication date
JPS6130480A (ja) 1986-02-12

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19860813

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Inventor name: KNABEL, WALTER, DR. ING.