[특허]Removable fin system

Low Pressure Systems PTY, Ltd.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Removable fin system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63B-001/28 B63B-039/06
미국특허분류(USC)	441/079; 114/039.15; 114/127; 114/136
출원번호	US-0239475 (2001-02-19)
우선권정보	AU-0006377 (2000-03-22)
국제출원번호	PCT//AU01/00169 (2003-07-28)
§371/§102 date	20030728 (20030728)
국제공개번호	WO01//70565 (2001-09-27)
발명자 / 주소	Davey, Graeme Banks, Jim Harper, Derek
출원인 / 주소	Low Pressure Systems PTY, Ltd.
대리인 / 주소	Meyertons, Hood, Kivlin, Kowert &
인용정보	피인용 횟수 : 11 인용 특허 : 23

초록
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A pivotal fin system, for use with an aquafoil, such as surfboards, body boards, wave skis, sail boards, wake boards and the like, comprising a pot (3) and a fin (2), having a tab (18) extending from the base (17) of the fin (2). The pot (3) has a central slot (11) and is mounted in the board (23) with the opening of the central slot (11) flush with the board (23). The slot (11) has a releasable locking means (6 & 7) therein, and the tab (18) has a connection means (21 & 22), which is releasably engaged by locking means (6 & 7). Preferably the releasable locking means (6 & 7) is a substantially c-shaped clamp, and the connection means (21 & 22) has a recess or recesses (22) behind a bulbous extension (21), which is engaged in the c-shaped clamp, with arms (5) of the c-shaped clamp engaging in the recess or recesses (22).

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1. A replaceable fin system for an aquafoil, comprising:a pot having a slot therein and adapted to be fitted into the surface of the aquafoil; a first connection means extending into said slot; a fin having a leading edge, a trailing edge, a base, a tab extending from the base away from the fin and adapted to fit within said slot, said tab extending along the base of the fin from adjacent the leading edge to end at a point intermediate the leading and trailing edges, wherein a portion of the fin adjacent the trailing edge is adapted to remain free of the acquafoil to pivot dynamically in response to differing conditions; and a second connection means located on said tab, which releasably engages with said first connection means to retain said tab in said slot wherein said first connection means comprises two opposed arms, and the second connection means comprises a bulbous projection located on a neck of the tab and the two arms engage the neck behind the bulbous projection to abut against the bulbous projection to resist the vertical movement of the fin out of the slot, wherein the arms extend longitudinally along the slot and form a substantially c-shaped clamp in cross section and the bulbous projection is a rail extending longitudinally along the tab, with the neck being a longitudinally extending recess or recesses located between the rail and the base of the fin. 2. A fin system according to claim 1 wherein the slot has its wall or walls substantially parallel.3. A fin system according to claim 1, wherein the first connection means is formed integrally with said pot.4. A fin system according to claim 1, wherein the first connection means fits into a cutout in the base of the pot where it is held against the base of the pot and extends into the slot.5. A fin system according to claim 1, wherein the rail and the recess or recesses are located intermediate two end portions of the tab, which are of substantially the same width as the width of the slot.6. A replaceable fin system for an aquafoil, comprising:a pot having a body, having a top, a base with an opening therein and an array of sideway extending wings, a slot in the body open to the top, said pot being adapted to be fitted into the surface of the aquafoil; a clip adapted to be located in a cutout in the base of the body, where the clip is held against the base of the pot and extends into said slot; said clip having two opposed arms, extending longitudinally along the slot, which form a substantially c-shaped clamp in cross section, with a substantially cylindrical central cavity; a fin having a leading edge, a trailing edge, a base, a tab extending from the base away from the fin and being adapted to fit within said slot, said tab extending along the base of the fin from adjacent the leading edge to a point intermediate the leading and trailing edges; and a rail extending longitudinally along at least the central portion of the tab, with a recess or recesses located between the rail and the base of the fin, wherein when said tab is pushed into said slot, the two arms of the clip are forced aside and lock into the recesses or recess holding the rail within the substantially cylindrical central cavity of the c-shaped clamp, to resist the movement of the fin out of the slot. 7. A fin system according to claim 6 wherein the slot has its wall or walls substantially parallel.8. A fin system according to claim 7 wherein the rail and the recess is located intermediate two end portions of the tab which are of substantially the same width as the width of the slot.9. A fin system according to claim 6 wherein the tab extends along the bottom surface of the fin from the leading edge to approximately the mid point between the leading and trailing edges of the fin.10. A replaceable fin system for an aquafoil, comprising:a pot having a body, having a top, a base with an opening therein and an array of sideway extending wings, a slot in the body open to the top, said pot being adapted to be fitted into the surface of the aquafoil; a clip adapted to be located in a cutout in the base of the body, where the clip is held against the base of the pot and extends into said slot, said clip having two opposed arms, extending longitudinally along the slot, which form a substantially c-shaped clamp in cross section, with a substantially cylindrical central cavity; a fin having a leading edge, a trailing edge, a base, a tab extending from the base away from the fin, said tab being adapted to fit within said slot; and a rail extending longitudinally along at least the central portion of the tab, with a recess or recesses located between the rail and the base of the fin, wherein when said tab is pushed into said slot, the two arms of the clip are forced aside and lock into the recesses or recess holding the rail within the substantially cylindrical central cavity of the c-shaped clamp, to resist the movement of the fin out of the slot and thereby releasably retain the fin to the aquafoil without threaded or additional fastening means. 11. A fin system according to claim 10 wherein the slot has its wall or walls substantially parallel.12. A fin system according to claim 11 wherein the rail and the recess is located intermediate two end portions of the tab which are of substantially the same width as the width of the slot.13. A fin system according to claim 10 wherein the tab extends along the bottom surface of the fin from the leading edge to a point intermediate the leading and trailing edges of the fin.14. A fin system according to claim 10 wherein the tab extends along the bottom surface of the fin from the leading edge to approximately the mid point between the leading and trailing edges of the fin.15. A replaceable fin system for an aquafoil, comprising:a pot having a slot therein and adapted to be fitted into the surface of the aquafoil; a first connection means extending into said slot; a fin having a leading edge, a trailing edge, a base, a tab extending from the base away from the fin and adapted to fit within said slot, said tab extending along the base of the fin from adjacent the leading edge to end at a point intermediate the leading and trailing edges; and a second connection means located on said tab, which releasably engages with said first connection means to retain said tab in said slot; wherein said first connection means comprises two opposed arms, and the second connection means comprises a bulbous projection located on a neck of the tab and the two arms engage the neck behind the bulbous projection to abut against the bulbous projection to resist the vertical movement of the fin out of the slot, wherein the arms extend longitudinally along the slot and form a substantially c-shaped clamp in cross section and the bulbous projection is a rail extending longitudinally along the tab, with the neck being a longitudinally extending recess or recesses located between the rail and the base of the fin. 16. A fin system according to claim 15, wherein the rail and the recess or recesses are located intermediate two end portions of the tab, which are of substantially the same width as the width of the slot.17. A method of installing a pot for a replaceable fin system according to any one of the previous claims, the method comprising the steps of:marking aligning points on the aquafoil, for the fin position; positioning a first jig having registration markings and a central cutout, such that the registration markings align with the registration points on the aquafoil and securing said first jig in position; routing out a cavity bounded by the periphery of the central cutout of the first jig; attaching one of said pots to a set up jig and positioning said setup jig on said first jig such that said pot is positioned within said cavity; introducing a setting compound into said cavity around said pot an allowing said setting compound to set to secure said pot in said cavity; and removing said setup jig from said pot. 18. A method of inserting a pot for a replaceable fin system according to claim 17, wherein the registration markers are cross hair lines.19. A method of inserting a pot for a replaceable fin system according to claim 17, wherein the opening of the pot cavity is bevelled.20. A method of inserting a pot for a replaceable fin system according to claim 17, wherein the setting compound is a resin.

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Removable fin system

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Removable fin system

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