US20010018304A1 - Swimming flipper with interchangeable blade - Google Patents
Swimming flipper with interchangeable blade Download PDFInfo
- Publication number
- US20010018304A1 US20010018304A1 US09/790,883 US79088301A US2001018304A1 US 20010018304 A1 US20010018304 A1 US 20010018304A1 US 79088301 A US79088301 A US 79088301A US 2001018304 A1 US2001018304 A1 US 2001018304A1
- Authority
- US
- United States
- Prior art keywords
- sole
- blade
- swimming flipper
- flipper according
- slots
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B31/00—Swimming aids
- A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
- A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
- A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B31/00—Swimming aids
- A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
- A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
- A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet
- A63B2031/112—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet with means facilitating walking, e.g. rectractable, detachable or pivotable blades
Definitions
- the present invention relates to swimming flippers, and in particular to swimming flippers substantially consisting of a blade and a footwear or shoe suitably shaped and provided with a sole.
- the present invention aims to provide a swimming flipper whose shoe portion can be connected to any kind of blade portion, whose width and/or length and material are chosen according to the type of diving the scuba diver might want to do.
- a swimming flipper comprising a shoe portion equipped with a sole, and a blade portion placed before said sole; in said flipper the sole and the blade are attached one to the other by connecting means allowing the blade to be removed from the sole and to be replaced with a similar blade or with any other type of blade.
- FIG. 1 shows a partial perspective view from above of a first form of embodiment of a swimming flipper with interchangeable blade according to the present invention
- FIG. 2 shows a partial lateral and section view of the swimming flipper of FIG. 1;
- FIG. 3 shows a partial perspective view from below of a second form of embodiment of the swimming flipper according to the present invention.
- FIG. 4 shows a partial lateral and section view of the swimming flipper of FIG. 3.
- FIG. 5 shows a partial perspective view from below of another embodiment of the fin according to the invention.
- FIG. 6 is e view from below of a detail of the embodiment of FIG. 5.
- FIG. 1 shows a first form of embodiment of a swimming flipper according to the present invention, consisting of a footwear or shoe 1 made of a relatively soft material, for instance an elastomeric material such as rubber, and provided in its lower portion with a sole 2 made of a stiffer material, for instance a thermoplastic material with high mechanical resistance.
- the sole 2 laterally presents two reinforcing protruding elements 201 , which form a substantially U-shaped opening from which the front portion of said sole 2 protrudes.
- Said surface of said inside portion of the sole 2 is connected to a blade 3 , comprising, in its back portion, three protruding strips 301 , two lateral strips and a central one.
- Said strips 301 are shaped so as to be introduced into first slots 202 obtained on the surface of the sole 2 , which is partially placed above said blade 3 and abuts onto; the strips 301 come out of said first slots 202 and their free end is folded and introduced into second slots 203 obtained onto the sole 2 so as to be lined up longitudinally with respect to the first slots 202 and behind them.
- the front end of the sole 2 consists of three protruding strips 204 , two lateral strips obtained from the rims of said sole 2 , and a central one. The free ends of said strips 204 are folded and introduced into three slots 302 obtained on the surface of the blade 3 .
- connecting rod 4 In order to allow the flipper a certain flexibility and elasticity in its movements during the diving session, it is provided for the mounting of a connecting rod 4 , introduced into an opening 205 (which can be better seen in FIG. 2), obtained transversally with respect to the sole 2 on the lower surface in touch with the blade 3 below.
- Said connecting rod 4 is made of elastomeric material, such as rubber for instance, and it is laterally and longitudinally extended by means of extensible elements 401 , which are connected to the protruding elements 201 for the reinforcement of the sole 2 .
- the transversal connecting rod 4 and the lateral extensible elements 401 are made of the same material as the shoe 1 , partially covering also the reinforcing protruding elements 201 , for instance by injection of the elastomeric material of the shoe 1 into suitable molds.
- FIG. 2 it is possible to observe a lateral section view of the flipper in FIG. 1.
- the connecting rod 4 is introduced into the opening 205 obtained under the surface of the sole 2 , which, near the shoe base shows a weakening transversal portion 206 , obtained from its upper surface and filled up with a layer 101 of elastomeric material, advantageously injected together with the material of the shoe 1 .
- transversal connecting rod 4 fixed only to the lateral extensible elements 401 , gives, as previously mentioned, a certain degree of elasticity and flexibility to the flipper in its movements during the diving session, allowing at the same time the blade 3 to be free from any permanent fixing to the sole 2 , and, if the diver wants to remove said blade 3 from said sole 2 , he/she just has to take out the strips 301 from the slots 203 and 202 and the strips 204 of the sole 2 from the corresponding slots 302 of the blade 3 .
- FIG. 3 shows a second form of embodiment of the present swimming flipper seen from below.
- the sole 2 comprises, near its front rim, three slots 207 protruding below and transversally lined up one with respect to the other. Said protruding slots 207 , once the flipper has been mounted, are placed before the connecting rod 4 .
- the sole 2 consists of a fourth slot 208 , protruding below and obtained in an area which, once the blade 3 has been put onto said sole 2 , is located near the back rim of said blade 3 , therefore behind the transversal connecting rod 4 .
- Said slots 207 and 208 are obtained integrally by a suitable shaping of the material of the sole 2 , but they could also be fixed later to the lower surface of said sole 2 .
- the four slots 207 and 208 when the sole 2 and the blade 3 overlap, are introduced into four corresponding holes obtained on the surface of said blade, and precisely three holes 304 , transversally lined up, and a hole 305 .
- two protruding elements 303 are obtained, said elements fitting into two corresponding housings 209 obtained on the sole 2 and protruding below.
- the four slots 207 and 208 cooperate, during the mounting of the flipper, with a fork 5 , substantially U-shaped, whose two stems 501 and 502 respectively fit into the three slots 207 and the slot 208 .
- FIG. 4 it is possible to observe better the aspect of the flipper after its mounting.
- the overlapping of the sole 2 and the blade 3 is completed by introducing the slots 207 and 208 into the corresponding holes 304 and 305 , and by eventually introducing the stems 501 and 502 of the fork 5 into said slots, respectively slots 207 and 208 .
- the suitable semicircle shape of the transversal section of said stems of the fork 5 is Observe by the way the suitable semicircle shape of the transversal section of said stems of the fork 5 .
- FIG. 5 an embodiment of the present fin is shown from below.
- the sole 2 comprises, near its front rim two slots 210 protruding below from said sole and aligned transversely one with respect to the other.
- the said slots 210 have their apertures directed in longitudinal direction with respect to the sole 2 and the blade 3 and, once completed the assembling of the fin, they are positioned before the connecting rod 4 .
- the sole 2 is further provided with a third projecting slot 211 formed in a zone which, once the blade 3 has been superposed to said sole 2 , is disposed near the back rim of the blade 3 , and therefore backwads with respect to the connecting rod. Also this third slot 211 has its aperture directed in longitudinalk direction with respect to the sole 2 and the blade 3 .
- the three slots 210 and 211 are, according to the present embodiment, made integral with the sole 2 , but they could also be secured in any other suitable manner to the lower surface of the sole 2 . As shown, whenever the sole 2 is superposed to the blade 3 , the three slots 210 and 211 are inserted in three holes made in the blade 3 , that is two holes 306 transversally alligned, and one hole 307 . In a manner similar to that of the embodiment of FIG. 3, the blade 3 is provided with two projecting members 303 which may be inserted in two corresponding housings 209 formed in the sole 2 and projecting from below.
- the three slots 210 and 211 cooperates with an anchor-shaped member 6 comprising a base 601 from which the two side arms 602 and the central leg 603 , which is longer than the said arms 602 , are extending.
- the ends of the side arms 602 are rounded and are sidewise provided with two teeths 604 projecting toward the sides of the fin.
- the central leg 603 is inserted from below in the slot 211 .
- the side arms 602 are slightly urged the one toward the other and are inserted in the corresponding slots 210 .
- the arms are elastically returned to their original configuration (direction of arrows D in FIG.
- FIG. 6 in which, by way of example, the right side arm is shown:
- the tooth 604 and the external wall of the arm 602 are into contact with the external wall of the slot 210 .
- the element 6 cannot be inadvermastery shifted longitudinally in a direction in which the blade 3 could be disconnected from the sole 2 .
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
Description
- The present invention relates to swimming flippers, and in particular to swimming flippers substantially consisting of a blade and a footwear or shoe suitably shaped and provided with a sole.
- It is known about the existence of flippers provided with coupling systems which allow to secure a blade to the corresponding shoe or footwear, thus allowing its removal in situations in which, for instance, said blade is cumbersome before or after a diving session, or if it is damaged and needs to be replaced. Said systems are often quite complex and do not show a great efficiency; moreover, they allow to mount onto a given shoe only a given type of blade, according to the kind of diving the scuba diver might want to do with said blade, for instance skin diving or scuba diving or the like.
- The present invention aims to provide a swimming flipper whose shoe portion can be connected to any kind of blade portion, whose width and/or length and material are chosen according to the type of diving the scuba diver might want to do.
- Said scope is achieved by the present invention by means of a swimming flipper comprising a shoe portion equipped with a sole, and a blade portion placed before said sole; in said flipper the sole and the blade are attached one to the other by connecting means allowing the blade to be removed from the sole and to be replaced with a similar blade or with any other type of blade.
- By means of the present swimming flipper provided with said connecting means, therefore, it is advantageously possible to adapt any type of blade, according to the various diving needs of the scuba diver, to the flipper shoe.
- Further aims and advantages of the present invention will be better understood through the following description, regarded as a mere non-limiting example, with reference to the enclosed drawings, in which:
- FIG. 1 shows a partial perspective view from above of a first form of embodiment of a swimming flipper with interchangeable blade according to the present invention;
- FIG. 2 shows a partial lateral and section view of the swimming flipper of FIG. 1;
- FIG. 3 shows a partial perspective view from below of a second form of embodiment of the swimming flipper according to the present invention; and
- FIG. 4 shows a partial lateral and section view of the swimming flipper of FIG. 3.
- FIG. 5 shows a partial perspective view from below of another embodiment of the fin according to the invention; and
- FIG. 6 is e view from below of a detail of the embodiment of FIG. 5.
- With reference to FIG. 1, the latter shows a first form of embodiment of a swimming flipper according to the present invention, consisting of a footwear or
shoe 1 made of a relatively soft material, for instance an elastomeric material such as rubber, and provided in its lower portion with a sole 2 made of a stiffer material, for instance a thermoplastic material with high mechanical resistance. The sole 2 laterally presents two reinforcingprotruding elements 201, which form a substantially U-shaped opening from which the front portion of said sole 2 protrudes. Said surface of said inside portion of thesole 2 is connected to ablade 3, comprising, in its back portion, threeprotruding strips 301, two lateral strips and a central one. Saidstrips 301 are shaped so as to be introduced intofirst slots 202 obtained on the surface of the sole 2, which is partially placed above saidblade 3 and abuts onto; thestrips 301 come out of saidfirst slots 202 and their free end is folded and introduced intosecond slots 203 obtained onto the sole 2 so as to be lined up longitudinally with respect to thefirst slots 202 and behind them. The front end of the sole 2 consists of threeprotruding strips 204, two lateral strips obtained from the rims of said sole 2, and a central one. The free ends of saidstrips 204 are folded and introduced into threeslots 302 obtained on the surface of theblade 3. In order to allow the flipper a certain flexibility and elasticity in its movements during the diving session, it is provided for the mounting of aconnecting rod 4, introduced into an opening 205 (which can be better seen in FIG. 2), obtained transversally with respect to the sole 2 on the lower surface in touch with theblade 3 below. Said connectingrod 4 is made of elastomeric material, such as rubber for instance, and it is laterally and longitudinally extended by means ofextensible elements 401, which are connected to theprotruding elements 201 for the reinforcement of thesole 2. According to an aspect of the present invention, the transversal connectingrod 4 and the lateralextensible elements 401 are made of the same material as theshoe 1, partially covering also the reinforcingprotruding elements 201, for instance by injection of the elastomeric material of theshoe 1 into suitable molds. - In FIG. 2 it is possible to observe a lateral section view of the flipper in FIG. 1. As mentioned with reference to the previous figure, the connecting
rod 4 is introduced into the opening 205 obtained under the surface of the sole 2, which, near the shoe base shows a weakeningtransversal portion 206, obtained from its upper surface and filled up with alayer 101 of elastomeric material, advantageously injected together with the material of theshoe 1. The use of the transversal connectingrod 4, fixed only to the lateralextensible elements 401, gives, as previously mentioned, a certain degree of elasticity and flexibility to the flipper in its movements during the diving session, allowing at the same time theblade 3 to be free from any permanent fixing to the sole 2, and, if the diver wants to removesaid blade 3 from said sole 2, he/she just has to take out thestrips 301 from theslots strips 204 of thesole 2 from thecorresponding slots 302 of theblade 3. - FIG. 3 shows a second form of embodiment of the present swimming flipper seen from below. The sole2 comprises, near its front rim, three
slots 207 protruding below and transversally lined up one with respect to the other. Saidprotruding slots 207, once the flipper has been mounted, are placed before the connectingrod 4. Moreover, thesole 2 consists of afourth slot 208, protruding below and obtained in an area which, once theblade 3 has been put onto said sole 2, is located near the back rim of saidblade 3, therefore behind thetransversal connecting rod 4. Saidslots slots sole 2 and theblade 3 overlap, are introduced into four corresponding holes obtained on the surface of said blade, and precisely threeholes 304, transversally lined up, and ahole 305. On the back rim of the blade, moreover, twoprotruding elements 303 are obtained, said elements fitting into twocorresponding housings 209 obtained on the sole 2 and protruding below. The fourslots fork 5, substantially U-shaped, whose twostems slots 207 and theslot 208. - In FIG. 4 it is possible to observe better the aspect of the flipper after its mounting. After introducing the two
protruding elements 303 into thecorresponding housings 205, the overlapping of the sole 2 and theblade 3 is completed by introducing theslots corresponding holes stems fork 5 into said slots, respectivelyslots fork 5. - In FIG. 5 an embodiment of the present fin is shown from below. The sole2 comprises, near its front rim two
slots 210 protruding below from said sole and aligned transversely one with respect to the other. The saidslots 210 have their apertures directed in longitudinal direction with respect to the sole 2 and theblade 3 and, once completed the assembling of the fin, they are positioned before the connectingrod 4. The sole 2 is further provided with a third projectingslot 211 formed in a zone which, once theblade 3 has been superposed to said sole 2, is disposed near the back rim of theblade 3, and therefore backwads with respect to the connecting rod. Also thisthird slot 211 has its aperture directed in longitudinalk direction with respect to the sole 2 and theblade 3. The threeslots sole 2 is superposed to theblade 3, the threeslots blade 3, that is twoholes 306 transversally alligned, and onehole 307. In a manner similar to that of the embodiment of FIG. 3, theblade 3 is provided with two projectingmembers 303 which may be inserted in twocorresponding housings 209 formed in the sole 2 and projecting from below. - The three
slots base 601 from which the twoside arms 602 and thecentral leg 603, which is longer than thesaid arms 602, are extending. The ends of theside arms 602 are rounded and are sidewise provided with twoteeths 604 projecting toward the sides of the fin. By assembling of the fin, thecentral leg 603 is inserted from below in theslot 211. During this operation, theside arms 602 are slightly urged the one toward the other and are inserted in thecorresponding slots 210. As soon as their insertion is completed, the arms are elastically returned to their original configuration (direction of arrows D in FIG. 5) so that theteeths 604 are brought into abutment against the walls of theslots 210. In this regard, attention is directed to FIG. 6 in which, by way of example, the right side arm is shown: As it may be noted, thetooth 604 and the external wall of thearm 602 are into contact with the external wall of theslot 210. Thanks to the abutment of the saidtooth 604, the element 6 cannot be inadvertitely shifted longitudinally in a direction in which theblade 3 could be disconnected from the sole 2. In order to disassemble theblade 3 from thesole 2 it is sufficient to again compress the twoarms 604 the one toward the other (direction of arrow C in FIG. 5) thus allowing the extraction of the arms out of theslots 210, and thus the extraction of the anchor-like element 6. - As an alternative to the connecting means described in the two previous forms of embodiment of FIGS. 1, 2,3 and 4, it is possible to use other means allowing the removal of the blade from the flipper and its replacement with any other type of blade, for instance pins, fitting systems, screws, nuts or others, possibly combined one with the other and/or with the means described in the previous figures.
Claims (17)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITGE00A0026 | 2000-02-25 | ||
ITGE2000A000026 | 2000-02-25 | ||
IT2000GE000026A IT1314502B1 (en) | 2000-02-25 | 2000-02-25 | SWIMMING FIN IN INTERCHANGEABLE SHOVEL. |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010018304A1 true US20010018304A1 (en) | 2001-08-30 |
US6322412B2 US6322412B2 (en) | 2001-11-27 |
Family
ID=11442592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/790,883 Expired - Fee Related US6322412B2 (en) | 2000-02-25 | 2001-02-23 | Swimming flipper with interchangeable blade |
Country Status (3)
Country | Link |
---|---|
US (1) | US6322412B2 (en) |
EP (1) | EP1127590A1 (en) |
IT (1) | IT1314502B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2808473A1 (en) * | 2020-09-14 | 2021-02-26 | Univ Madrid Politecnica | VERSATILE SPORTS COMPLEMENT INTENDED FOR TRAINING SWIMMING (Machine-translation by Google Translate, not legally binding) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7140938B1 (en) * | 2004-04-23 | 2006-11-28 | Paul Ware | Swim assist system and method |
WO2011123950A1 (en) | 2010-04-08 | 2011-10-13 | Cetatek Holdings Inc. | Flippers, boots, systems including same, and methods of using same |
US10675508B2 (en) | 2010-04-08 | 2020-06-09 | Cetatek Holdings Inc. | Coupleable fin apparatuses and boot toe bodies |
US9440114B2 (en) | 2012-10-12 | 2016-09-13 | Cetatek Holdings Inc. | Boot sole system and fin for same |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1075997B (en) * | 1954-12-30 | 1960-02-18 | Ernst Langhans Dipl Ing | Swimming flippers to be attached to the foot |
FR1208636A (en) * | 1958-09-04 | 1960-02-24 | Spirotechnique | Advanced swimming fin |
US3178738A (en) * | 1961-11-16 | 1965-04-20 | Everett A Brunner | Convertible swim fin |
US3302222A (en) * | 1963-12-05 | 1967-02-07 | Ferraro Luigi | Swimming flipper |
BE669779A (en) * | 1965-02-02 | 1966-03-17 | ||
US3521312A (en) * | 1968-11-05 | 1970-07-21 | Vitan M Ganev | Swim shoe and swim fin assembly |
IT976563B (en) * | 1973-01-09 | 1974-09-10 | Amf Mares Sub Spa | NATATORY FIN AND ITS MANUFACTURING METHOD |
FR2410488A1 (en) * | 1977-12-05 | 1979-06-29 | Beuchat Georges | Swimming flipper with increased propulsion effect - has foot cavity extended by ducts, and flipper panel attached to upper surface |
FR2543004B1 (en) * | 1983-03-25 | 1987-02-27 | Dessault Hugues | SWIMMING WING SWIMMING PALM |
FR2611509A1 (en) * | 1986-12-05 | 1988-09-09 | Petit Jean Christophe | Compact flipper device |
IT1213912B (en) * | 1987-10-09 | 1990-01-05 | Scubapro Spa | SWIMMING FIN WITH SEPARABLE SHOVEL AND SHOE |
-
2000
- 2000-02-25 IT IT2000GE000026A patent/IT1314502B1/en active
-
2001
- 2001-01-30 EP EP01102030A patent/EP1127590A1/en not_active Withdrawn
- 2001-02-23 US US09/790,883 patent/US6322412B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2808473A1 (en) * | 2020-09-14 | 2021-02-26 | Univ Madrid Politecnica | VERSATILE SPORTS COMPLEMENT INTENDED FOR TRAINING SWIMMING (Machine-translation by Google Translate, not legally binding) |
Also Published As
Publication number | Publication date |
---|---|
ITGE20000026A1 (en) | 2001-08-25 |
ITGE20000026A0 (en) | 2000-02-25 |
US6322412B2 (en) | 2001-11-27 |
EP1127590A1 (en) | 2001-08-29 |
IT1314502B1 (en) | 2002-12-18 |
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