AU2004314224A1 - Shock absorbing system for rowing boat oarlock - Google Patents

Shock absorbing system for rowing boat oarlock Download PDF

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Publication number
AU2004314224A1
AU2004314224A1 AU2004314224A AU2004314224A AU2004314224A1 AU 2004314224 A1 AU2004314224 A1 AU 2004314224A1 AU 2004314224 A AU2004314224 A AU 2004314224A AU 2004314224 A AU2004314224 A AU 2004314224A AU 2004314224 A1 AU2004314224 A1 AU 2004314224A1
Authority
AU
Australia
Prior art keywords
oarlock
shock absorbing
absorbing system
rowing
rowing boat
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.)
Abandoned
Application number
AU2004314224A
Inventor
Antoine Sakellarides
Original Assignee
Antoine Sakellarides
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 Antoine Sakellarides filed Critical Antoine Sakellarides
Priority to PCT/AU2004/000078 priority Critical patent/WO2005070760A1/en
Publication of AU2004314224A1 publication Critical patent/AU2004314224A1/en
Application status is Abandoned legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H16/00Effecting propulsion by muscle power
    • B63H16/06Rowlocks; Mountings therefor

Description

WO 2005/070760 PCT/AU2004/000078 Description Shock Absorbing System for Rowing Boat Oarlock 1 Technical Field This invention applies to the field of rowing. 2 Background Art The Shock Absorbing System is a device that is attached to rowing boats' oarlocks. This device can be either added to existing plastic oarlocks with a few modifications (punched holes and cuts) or directly integrated to a modified oarlock during the manufacturing process. The current design of rowing boats' oarlocks reveals a play between the oar and the oarlock, allowing an easy rotation of the rower's wrist movement. This play enables a permanent movement of the oar in the oarlock when in motion, but also induces a series of problems: 1. Catch At the precise moment when the oar hits the water, it is not perfectly locked on the rear abutment of the oarlock. This creates 2 disruptions: " When the oar hits the rear abutment of the oarlock with a delay, the rower looses a bit of power at that precise time. * This delay also induces a jolt, which creates a direct and negative disruption on the hull. 2. Finish At the finish (when the oar exits the water) 2 more jolts are produced: " The first one is generated by the rower who produces, by his gesture, a jolt of the oar at the front of the oarlock. * Right after the first jolt, a second jolt is generated by the physical push of the oar on the rear of the oarlock. These jolts develop waves of shocks, which directly disrupt the boat hull. All these "parasitic" disruptions at the catch and at the finish influence the good behaviour of the boat. 1 WO 2005/070760 PCT/AU2004/000078 Description (cont.) 3 Disclosure of Invention The Shock Absorbing System is made of 2 distinct parts: - A 75 millimetre long, 29 millimetre wide (at widest point) tongue shaped plastic part, ending with a split base (2 v-shaped 35 millimetres long stands) each pierced with 2 holes - A latex rubber "tonneau" loop or strap (total length 100 mm) attached with a hard plastic piece pierced with 2 holes. The tongue-shaped part is screwed onto the inside of the oarlock (lower front part) with a bolt (diameter 2 millimetre / length 25 millimetre) attached in the first 2 holes of the stand,with the tip of the stands outside the oarlock. The loop is screwed in the same way at the tip of the stands, outside the oarlock. The strap is then extended and hooked onto a slot created on the upper front part of the oarlock. When rowing, the sleeve (the part of the oar which comes into the oarlock and is not cylindrical) puts pressure on the tongue-shaped part, in continuous tension with the loop. This pressure creates a swing and push movement of the tongue-shaped part, which enables all shocks (jolts, parasites) to be absorbed as the oar is no longer loose in the oarlock. The Shock Absorbing System for Rowing Boat Oarlock improves the suppleness of the rowing while increasing the speed performance of the b o at. It also increases the stability of the boat at any rowing speed, as it avoids the safety lock of the oarlock to unlock when catching a crab, and therefore decreases the risks of capsizing. The following points were taken into consideration when developing this invention: " Meeting FISA standards for the oarlock diameter. * Not modifying the usual rowing gestures of the rower. " Not requiring extra maintenance * An easy adaptation with little modification of the existing standard system receiving the oarlock * Easily replaceable spare-parts * Accessible market price 2 WO 2005/070760 PCT/AU2004/000078 Description (cont.) 4 Brief Description of Drawings 1 Shock Absorbing System screwed to a rowing boat oarlock 2 Front view of Shock Absorbing System 3 Side view of Shock Absorbing System 4 Top view of Shock Absorbing System 5 Best Mode for Carrying Out the Invention An aluminium and latex prototype of the Shock Absorbing System for Rowing Boats Oarlocks was developed and tested on a traditional oarlock. However, the best material to use is moulded hard plastic, which enables a more accurate realisation. 6 Industrial Applicability This invention is easy to manufacture anywhere in the world, and does not require heavy investments, except for the creation of moulds for the plastic parts. Both parts can be manufactured separately, or by the same manufacturer. They can also be manufactured directly by oarlock manufacturers. 3

AU2004314224A 2004-01-23 2004-01-23 Shock absorbing system for rowing boat oarlock Abandoned AU2004314224A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/AU2004/000078 WO2005070760A1 (en) 2004-01-23 2004-01-23 Shock absorbing system for rowing boat oarlock

Publications (1)

Publication Number Publication Date
AU2004314224A1 true AU2004314224A1 (en) 2005-08-04

Family

ID=34800085

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2004314224A Abandoned AU2004314224A1 (en) 2004-01-23 2004-01-23 Shock absorbing system for rowing boat oarlock

Country Status (2)

Country Link
AU (1) AU2004314224A1 (en)
WO (1) WO2005070760A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SA2709B1 (en) 2006-08-25 2011-07-20 بيورديو فارما إل. بي. Tamper Resistant Oral Pharmaceutical Dosage Forms Comprising an Opioid Analgesic

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US742490A (en) * 1903-01-05 1903-10-27 Cyrus M Pray Oar-lock.
US2602172A (en) * 1949-01-24 1952-07-08 Sidney R Messman Cylinder type rubber oarlock holder
US2987736A (en) * 1959-03-23 1961-06-13 Fred H Wolff Oarlock
DE1556842A1 (en) * 1968-03-06 1970-02-26 Wiesbaden Gmbh Maschf Apparatus for supporting the belt of rowing boats, in particular racing boats
GB1212125A (en) * 1968-05-25 1970-11-11 Dunlop Co Ltd Improvements in or relating to rowlocks
FR2267239B3 (en) * 1974-04-10 1977-02-11 Scoprega Preti Franco Gaiardel
SU698842A1 (en) * 1978-02-22 1979-11-25 Уфимский Ордена Октябрьской Революции Завод Резиновых Технических Изделий Им.М.В.Фрунзе Rowlock for inflatable boats
FR2754237B1 (en) * 1996-10-04 1998-12-18 Zodiac Int A rowing attachment to an inflatable boat
GB9801662D0 (en) * 1998-01-28 1998-03-25 Hall Leslie W Assisted power stroke for oarsmen
AUPQ366699A0 (en) * 1999-10-27 1999-11-18 Murray, John Coll Gated composite general purpose rowlock
FR2825678B1 (en) * 2001-06-07 2003-09-12 Zodiac Int Removable fixing device for a rowing on a boat

Also Published As

Publication number Publication date
WO2005070760A1 (en) 2005-08-04

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Legal Events

Date Code Title Description
NA Applications received for extensions of time, section 223

Free format text: AN APPLICATION TO EXTEND THE TIME FROM 23 AUG 2006 TO 23 FEB 2008 IN WHICH TO ENTER THE NATIONAL PHASE HAS BEEN FILED .

NB Applications allowed - extensions of time section 223(2)

Free format text: THE TIME IN WHICH TO ENTER THE NATIONAL PHASE HAS BEEN EXTENDED TO 23 FEB 2008.

MK4 Application lapsed section 142(2)(d) - no continuation fee paid for the application