EP0039927B1 - Positionierbare Klemmschelle - Google Patents

Positionierbare Klemmschelle Download PDF

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Publication number
EP0039927B1
EP0039927B1 EP81103534A EP81103534A EP0039927B1 EP 0039927 B1 EP0039927 B1 EP 0039927B1 EP 81103534 A EP81103534 A EP 81103534A EP 81103534 A EP81103534 A EP 81103534A EP 0039927 B1 EP0039927 B1 EP 0039927B1
Authority
EP
European Patent Office
Prior art keywords
cleat
sleeve
positioning sleeve
boom
jam
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
EP81103534A
Other languages
English (en)
French (fr)
Other versions
EP0039927A1 (de
Inventor
Henry Hoyle Schweitzer
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
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 Individual filed Critical Individual
Priority to AT81103534T priority Critical patent/ATE7773T1/de
Publication of EP0039927A1 publication Critical patent/EP0039927A1/de
Application granted granted Critical
Publication of EP0039927B1 publication Critical patent/EP0039927B1/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 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B63B21/08—Clamping devices
    • 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
    • B63H8/23—Rigging arrangements involving masts, e.g. for windsurfing for tensioning or trimming the clew of the sail, e.g. outhaul trimmers
    • 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
    • B63H8/50—Accessories, e.g. repair kits or kite launching aids
    • B63H8/52—Handheld cleats, cams or hooks for tensioning the downhaul or outhaul of a windsurfing sail

Definitions

  • Wind driven vehicles e.g., surf boards, having a sail means attached to the vehicle and a pair of curved booms athwart a spar to which the sail means is mounted, and which booms contain the sail and form a hand-hold means for the user of the vehicle, are well known in the art as shown in the patent to the present Applicant, United States Patent No. 3,487,800.
  • Such vehicles typically have the clew-end of the booms joined with a fitting having a slot through which is passed a clew sheet line attached to the clew of the sail, and used for trimming the sail.
  • the clew sheet typically is attached by passing it through the clew of the sail, without knotting it at the clew, and passing the two ends of the clew sheet through the slot in the clew-end boom fitting, with each end being run along a respective boom and fastened at a point along the boom to a cleat.
  • the user of the vessel who provides motor force for the vessel by holding the sail upright against the force of the wind by grasping a respective one of the booms, can trim the sail while grasping either of the booms, simply by loosening the respective end of the clew sheet from the cleat on the boom which the user is grasping and tightening or slackening the clew sheet as desired, followed by again making the clew sheet fast to the cleat.
  • the position of the user along the boom will vary greatly, thus, making it difficult for the user to reach a single stationary cleat, at least at some times during the sailing of the vehicle.
  • One possible solution would be to have a plurality of cleats spaced along the boom, however, since the user grasps the boom in order to control the sail and the vehicle, the positioning of a plurality of cleats along the boom would serve to hamper the ability of the user to grasp the boom, particularly when the cleats are of the metal variety and protrude significantly outwardly from the surface of the boom.
  • a positionable jam cleat for use on a surf- board-boom is known "per se" from DE-A-2837534 in connection with a trapeze harness.
  • the present invention is therefore characterized by a positionable jam cleat as described in the characterizing part of claim 1.
  • the positioning sleeve is disclosed in a preferred embodiment to have an open seam extending the length of the positioning sleeve and to have an inner diameter sufficiently smaller than the outer diameter of the boom such that, when the positioning sleeve is placed on the boom, a gap will be formed at the open seam. Sliding the cleat sleeve over the positioning sleeve compresses the positioning sleeve, narrowing this gap, sufficiently to significantly increase the frictional engagement of the boom by the positioning sleeve.
  • the positionable jam cleat 10 has a positioning sleeve 12 and a cleat sleeve 18.
  • the positioning sleeve 12 is of expandable inner diameter and has a annular lip 14 at the clew sheet line-receiving end 15 of the positioning sleeve 12.
  • the positioning sleeve 12 is shown in the embodiment of Figure 1 to have an open seam 16 extending along the longitudinal length thereof such that the inner diameter of the positioning sleeve 12 can be expanded by placing the positioning sleeve 12 over one of the respective booms (not shown in Figure 1) with the inner surface 17 of the positioning sleeve 12 contacting the boom, as discussed in more detail below.
  • the cleat sleeve 18 has a jam cleat 20 formed on the outer surface thereof.
  • the jam cleat 20 is shown to consist of two upstanding channel sides 20 forming a channel therebetween having a row of teeth 22 on the inwardly facing surfaces of the channel sides 21.
  • a bridge 26 connects the upper edges of the channel sides 21 to form a line receiving passage 24, into which the clew sheet (not shown in Figure 1) is inserted, as more fully described below.
  • the bridge 26 serves to prevent the clew sheet line from pulling away from the teeth 22 of the jam cleat 20, thus insuring that the clew line will be made fast in the jam cleat 20.
  • the cleat sleeve 18 has an inner surface 28 having an inner diameter of a size such that when the cleat sleeve 18 is forced over the positioning sleeve 12, with the positioning sleeve 12 on the boom, the gap 16 will be narrowed, thereby increasing the frictional engagement of the boom by the positioning sleeve 12, and locking the positionable jam cleat 10 in a desired position on the boom.
  • Figure 2 shows a cross sectional view of the cleat sleeve 18 along lines 2-2 in Figure 1.
  • the teeth 22 are shown to be comprised of a row of spaced apart elevated ridges formed in the inwardly facing surface of the respective channel side 21, and at an angle of approximately forty-five degrees to the longitudinal axis of the cleat sleeve 18.
  • the clew line (not shown in Figure 2) is inserted through the line receiving passage 24 under the bridge 26 and into the region of the jam cleat 20 containing the teeth 22, wherein the teeth engage and lock the clew sheet line at a desired position along the clew sheet line.
  • the positioning sleeve 12 and cleat sleeve 18 are conveniently constructed of a molded plastic material which has the added advantage of facilitating the sliding of the cleat sleeve 18 onto the positioning sleeve 12, with the positioning sleeve 12 on the boom, because of the relatively friction free engagement between the surfaces of the positioning sleeve 12 and cleat sleeve 18.
  • FIG. 3 shows the positionable jam cleat 10 according to the present invention in place on a boom 30 with the cleat sleeve 18 in place over the positioning sleeve 12.
  • the lip 14 of the positioning sleeve 12 prevents the cleat sleeve 18 from being pulled, by the force exerted on the cleat sleeve 18 due to tension on a clew line 34 engaged by the teeth 22 of the jam cleat 20, over the line-receiving end 15 of the positioning sleeve 12.
  • the clew line 34 passes under the bridge 26 and through the line-receiving passage 24 into the teeth 22 of the jam cleat 20.
  • the bitter end 32 of the clew sheet 34 is shown to be hanging slacked after passing through and being engaged by the teeth 22 of the jam cleat 20.
  • Figure 4 shows a convenient arrangement for the rigging of the clew sheet, which allows for trimming of a sail 32 contained between the booms 30, 31 from a position along either of the booms 30, 31.
  • the booms 30, 31 are joined at the clew-end thereof by a clew-end boom fitting 38.
  • the clew sheet 34 passes through a clew 36 on the sail 32, without being knotted at the clew 36, and both ends of the clew sheet are then passed through an opening 39 (shown in cut away view in Figure 4) in the clew-end boom fitting 38, and having curved bearing surfaces 40.
  • the clew sheet line 34 passes over the bearing surfaces 40 and each end thereof is drawn back along the booms 30, 31 and made fast in a positionable jam cleat 10, constructed according to the present invention, and positioned at a desired location on either boom 30, 31.
  • the positionable jam cleat of the present invention provides the user of the vehicle with a jam cleat which is quickly and conveniently positionable to any desired location along the length of the boom, in order to keep the jam cleat within ready reach for trimming the sail when the user is standing at one of a number of different possible positions along the boom.
  • the jam cleat does not interfere with the gripping of the boom even at the location of the jam cleat.
  • the bridge at the line-receiving end of the jam cleat enables tightening the clew sheet with one hand, simply by pulling on the clew sheet generally parallel to the longitudinal axis of the jam cleat and releasing the clew sheet, whereupon the teeth of the jam cleat will be in engagement with the clew sheet.
  • the clew sheet can be slackened by using one hand to lift the clew sheet out of engagement by the teeth, slackening as desired and re-engaging the clew sheet in the teeth.
  • the particular shape of the positioning sleeve and the cleat sleeve may be modified so long as the positioning sleeve expands in circumference when placed on the boom and the cleat sleeve, when inserted over the positioning sleeve, serves to compress this expanded circumference in order to tighten the positioning sleeve against the boom.
  • the clew-end boom fitting is illustrative only and may be modified, e.g., by placing pulleys along or in place of the curved bearing surfaces.

Claims (5)

1. Variierbare Belegklemme (10) zum Einsatz auf einem windgetriebenen Fahrzeug mit einem Segel (32) auf einem am Fahrzeug befestigten Mast, das zwischen zwei sich quer zum Mast erstreckenden Spieren (30, 31) gehalten wird, gekennzeichnet durch eine Positionierhülse (12) mit einem aufweitbaren Umfang, die verschiebbar an der jeweiligen Spiere (30, 31) angebracht ist und eine äußere Fläche aufweist, eine Klemmhülse (18) mit einer inneren Fläche (28) und einem Innendurchmesser derart, daß die Klemmhülse (18) die Positionierhülse zusammendrückt, wenn die Positionierhülse (12) an der Spiere (30, 31) angebracht und die Klemmhülse (18) mit ihrer inneren Fläche auf die äußere Fläche der Positionierhülse (12) geschoben wird, wodurch der Reibschluß zwischen Spiere und Positionierhülse erhöht wird und eine Belegklemme (20) die aus der Klemmhülse geformt ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Positionierhülse (12) ein zur Segelleine gewandtes Ende (15) und eine ringförmigen Rand (14) an diesem Ende aufweist, der groß genug ist, die Klemmhülse (18) daran zu hindern, über das zur Segelleine gewandte Ende der Positionierhülse zu rutschen.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Positionierhülse (12) über ihre gesamte Länge eine in Längsrichtung verlaufende offene Naht (16) aufweist und einen Innendurchmesser, der in ausreichendem Maße kleiner ist als der Außendurchmesser einer Spiere (30, 31), so daß beim Anbringen der Positionierhülse an einer der Spieren (30, 31) die offene Naht einen ausreichend breiten Schlitz bildet, damit die Klemmhülse (18), wenn sie über die Positionierhülse (12) geschoben wird, diese genügend zusammendrückt, wobei sich der Schlitz verschmälert, um den Reibschluß zwischen der Spiere und der Positionierhülse wesentlich zu erhöhen.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Belegklemme (20) von einem Paar nach oben stehender Kanalwände gebildet wird, die aus der Außenfläche der Klemmhülse (18) geformt sind und jeweils eine Reihe nach Innen gerichteter Klemmzähne (22) aufweisen.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Kanalwände an ihren oberen Rändern an der der Trimmschot zugewandten Seite durch einen Steg (26) verbunden sind, der zusammen mit den Kanalwänden einen Durchgang für eine Segelleine zu dem die Zähne enthaltenden Klemmbereich bildet.
EP81103534A 1980-05-12 1981-05-08 Positionierbare Klemmschelle Expired EP0039927B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103534T ATE7773T1 (de) 1980-05-12 1981-05-08 Positionierbare klemmschelle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14888080A 1980-05-12 1980-05-12
US148880 1980-05-12

Publications (2)

Publication Number Publication Date
EP0039927A1 EP0039927A1 (de) 1981-11-18
EP0039927B1 true EP0039927B1 (de) 1984-06-06

Family

ID=22527829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103534A Expired EP0039927B1 (de) 1980-05-12 1981-05-08 Positionierbare Klemmschelle

Country Status (5)

Country Link
EP (1) EP0039927B1 (de)
JP (1) JPS5737094A (de)
AT (1) ATE7773T1 (de)
AU (1) AU7025781A (de)
DE (1) DE3163962D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633753A1 (de) * 1986-10-03 1988-04-14 Franz Schlittenbauer Vorrichtung insbesondere zur befestigung eines trapeztampens
US10814951B2 (en) 2018-04-12 2020-10-27 Nicolas BURGER Device for adjusting a harness line for a sail-board

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504884A1 (fr) * 1981-05-04 1982-11-05 Maurras Jean Winch de wishbone
EP0377601A4 (en) * 1987-08-04 1990-09-12 Smitech Corporation Pty Ltd Clew fitting for a boom

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1908513A1 (de) * 1969-02-20 1970-09-17 William Burford Seilklemme
US3675598A (en) * 1970-11-04 1972-07-11 William Hodges & Co Inc Adjustable shelving
DE2754953A1 (de) * 1977-12-09 1979-06-13 Hannes Marker Einrichtung an segelsurfern
DE2837534A1 (de) * 1978-08-28 1980-03-06 Peter Dornfeld Trapezgurt fuer ein segelbrettrigg

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633753A1 (de) * 1986-10-03 1988-04-14 Franz Schlittenbauer Vorrichtung insbesondere zur befestigung eines trapeztampens
US10814951B2 (en) 2018-04-12 2020-10-27 Nicolas BURGER Device for adjusting a harness line for a sail-board

Also Published As

Publication number Publication date
AU7025781A (en) 1981-11-19
DE3163962D1 (en) 1984-07-12
EP0039927A1 (de) 1981-11-18
JPS5737094A (en) 1982-03-01
ATE7773T1 (de) 1984-06-15

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