[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0819450A1 - Schwimmschuhe für Taucher oder Schwimmer - Google Patents

Schwimmschuhe für Taucher oder Schwimmer Download PDF

Info

Publication number
EP0819450A1
EP0819450A1 EP97111911A EP97111911A EP0819450A1 EP 0819450 A1 EP0819450 A1 EP 0819450A1 EP 97111911 A EP97111911 A EP 97111911A EP 97111911 A EP97111911 A EP 97111911A EP 0819450 A1 EP0819450 A1 EP 0819450A1
Authority
EP
European Patent Office
Prior art keywords
swim
shoes
blade
shoe
swimmer
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Withdrawn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
EP97111911A
Other languages
English (en)
French (fr)
Inventor
Toan-Dat Tran
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.)
Tran Toan Dat
Original Assignee
Tran Toan Dat
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 Tran Toan Dat filed Critical Tran Toan Dat
Publication of EP0819450A1 publication Critical patent/EP0819450A1/de
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • Flipper according to DE-OS 3438808 hat a joint for placing the blade in the form of carrying wing of big stretch. These carrying wings have a symmetrical cross-section and are swinging adjusted with torsion-springs.
  • the introduced flipper from DE-PS 2009381 under the sole enlarges the propeling surface of the feet.
  • the detachable blade according to EP-0572853 is a classic construction of flippers. These are eventually prolonged along the shin of the shank and are firmly fixed with belt.
  • the flippers according to DE-GM 1928422 have a trough-like or spoon-like section-forming pointed downwards. A pressure wave as additional propulsion is generated by every upstroke.
  • the diver with these flippers can badly go forwards on the land.
  • the proposition of this present invention consists of designing new shoes for the swimmers and the divers so that the going on the land may be made easy. Morover it is important to mention that the ascending of stairs in water or on land with worn shoes is even possible.
  • swim-shoes have at first the general shape of shoes with shoe-instep,shoe-heel and sole.
  • the shoe-instep here is extended unwards in vaulted and stable prolongation.
  • the longitudinal vault can be random any one.
  • the epicycloid would be most appropriate.
  • the vault of cross-sections for the swim-blade (6) is profitably as half ellipse to shape.
  • the swim-blade (6) is in the transition zone (10) additionally reinforced by a rib (9).
  • a three-cornered rib (8) On the backside (II) of the swim-blade (6) a three-cornered rib (8) a flow facilitating configuration is assigned for stiffening this swim-blade (6) in the upper zone.
  • Figure 1 shows the construction principle of the swim-shoes made from technical rubber.
  • the shoes have parts made form different kinds of rubber which are vulcanized together.
  • the shoe-sole (2,3) there are moulded-on parts made of harder and more resistant to wear rubbers.
  • the shoe-heel (1), the shoe-leg (4) and the shoe-instep (5) are made of soft rubber.
  • the harder vaulted swim-blade (6) is moulded-on on the shoe-instep (5).
  • the left and the right shoe are generally symmetrical like the normal shoes, but are not alike. This type is for instance thought up for the rescue-swimmer who have to wear the shoes during stand-by operation. In case of emergency the rescue-swimmer would use a vehicle.
  • the upwards pointed swim-blade (6) allows a lot of movableness.
  • the treading on the brakepedal by car driving is no more a impediment.
  • Figure 2 shows a variant of swim-shoes without shoe-heel and point according to the invention.
  • the elastic shoe-leg (14) fixes additionally the shoes.
  • This cheaper version is for instance made from one kind of rubber with about 75 shore A hardness in one-piece vulcanized and has a symmetrical shoe-design.
  • the right and the left shoe are alike.
  • the elasticity of the rubber allows largely the ductility of the shoe-instep (5).
  • the diver or the swimmer can ascend directly the under water found ladder after a diving roung.
  • the rescue-swimmer could run right away with worn swim-shoes during a operation. Some seconds time is sometimes very precious for the survival of a drowning person.
  • Figure 3 shows the cheapest variant of the swim-shoe according to the present invention made from soft plastic.
  • the portion of softening agent in plastic is so dosed that the elasticity and the ductility are still warrented.
  • the shoe-leg (14) is made from technical rubber with molded-on tetragonal holes (14a) which might fasten provisionally in the hook (15) of the shoes.
  • the same shoe is appropriate for the right and the left foot.
  • the detail-drawing X indicates that the injection-dies could be composed of two parts.
  • Figure 4 shows the cross-sections of the swim-blade (6) on different level and of the shoe-instep (5).
  • the cross-section A-A shows the flattened half-ellipse with the rib (8) on the backside (II).
  • the cross-section B-B shows the deepened half-ellipse with likewise a rib (8) on the backside.
  • the shape of the cross-section C-C has a initially little rib (9) in the middle of the inside (I).
  • D-D is the cross-section of the swim-blade (6) at the transition zone (10) between the foot and the human shank. The deformation is there as result of the transverse force (Fs) maximum. Therefore the inside rib (9) is shaped specially big. This rib has two elliptic side -contours (9a) which can deflect the water sidewards. Then the water collides in two separate pouchs.
  • the cross-sections E-E and F-F obtain the similar effect after deformation in the human foot.
  • the impact pressure takes rise on this way in the inside (I) of the swim-blade (6).
  • the diver receives a certain transverse force (Fs) by each paddling.
  • Fs transverse force
  • the water is deflected sidewards by the oblique borderings (8a) of the outside rib (8) on the backside (II).
  • the impact pressure on this side is much smaller, since the velocity of flow is bigger.
  • Figure 5 shows the position of the lower limbs at the beginning in frog style.
  • the swimmer moves the swim-shoes in the opposite swimming direction by stretching out the legs.
  • the transverse force (Fs) arises as reaction of the water on the inside (I) of the propulsive swim-blade (6).
  • the diver or the swimmer is driven forwards in the swimming direction by (Fs).
  • the pressure build-up on the inside (I) is optimized through the design of the cross-section D-D with great rigidity against bending in the transition zone (10).
  • Figure 6 shows the position of the lower limbs in crawl style.
  • the swimmer obtains by every descending stroke of the leg a propulsive transverse force (Fs),whose orientation is much influenceable by the position of the feet througt the foot-joint (Fg).
  • Fs propulsive transverse force
  • Figure 7 shows the straight treadle of a diver with the swim-shoes in deep sea. The beginning far back occurs in circle like by biking. The friction loss against the flowing is here minimized. The diver could also swing the both legs simultaneously as in dolphin style.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Schwimmschuhe für Taucher oder Schwimmer haben anscheinend die Hauptmerkmale der normalen Schuhe mit einem verlängerten Schuhspann (5) nach oben in Form eines Schwimmblatts (6) mit wissenschaftlich modellierten Strömmungsprofilen. Dieses Schwimmblatt (6) ist über Fußgelenk (F8) nach belieben schwingbar. Alle Schwimmstile sind damit möglich. <IMAGE>
EP97111911A 1996-07-17 1997-07-12 Schwimmschuhe für Taucher oder Schwimmer Withdrawn EP0819450A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996130548 DE19630548C1 (de) 1996-07-17 1996-07-17 Schwimmschuhe für Taucher oder Schwimmer
DE19630548 1996-07-17

Publications (1)

Publication Number Publication Date
EP0819450A1 true EP0819450A1 (de) 1998-01-21

Family

ID=7801167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111911A Withdrawn EP0819450A1 (de) 1996-07-17 1997-07-12 Schwimmschuhe für Taucher oder Schwimmer

Country Status (2)

Country Link
EP (1) EP0819450A1 (de)
DE (1) DE19630548C1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333392B2 (en) 2014-08-07 2016-05-10 Kohei Nakamura Underwater propulsion aid and underwater garment equipped with the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2570282B (en) * 2017-11-21 2020-12-30 Martin Doyle James SwimShu

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202441A5 (de) * 1972-10-05 1974-05-03 Hennebutte Georges
DE2611122A1 (de) * 1976-03-17 1977-09-22 Fritz Gerbsch Schwimmhilfe
EP0063666A1 (de) * 1981-04-24 1982-11-03 MEDITERRANEE JET CORSE (Société à responsabilité Limitée) Schwimmflosse
US5087217A (en) * 1990-09-11 1992-02-11 Tuan C T Swimming shoe
US5108327A (en) * 1989-02-01 1992-04-28 Klein Kevin R Retractable swim fin
US5292272A (en) * 1993-06-28 1994-03-08 Grim Roger W Dual mode swim fin

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE456880C (de) * 1925-09-26 1928-03-03 Paul Herrmann Schwimmvorrichtung in Form einer an den Fuessen zu befestigenden Platte
DE1001167B (de) * 1954-01-04 1957-01-17 Friedrich Heindel Schwimmsandalen
US3625820A (en) * 1968-06-14 1971-12-07 Gen Electric Jet pump in a boiling water-type nuclear reactor
CH504213A (fr) * 1969-03-13 1971-03-15 Materiaux S A Chaussure de nageur
FR2565498A1 (fr) * 1984-06-12 1985-12-13 Vielle Sylvie Palme de natation
DE3438808A1 (de) * 1984-10-23 1986-04-24 Carl-Joachim 8011 Riemerling Grieser Schwimmflosse fuer taucher oder schwimmer
IT1256836B (it) * 1992-06-03 1995-12-21 Technisub Spa Pinna per il nuoto.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202441A5 (de) * 1972-10-05 1974-05-03 Hennebutte Georges
DE2611122A1 (de) * 1976-03-17 1977-09-22 Fritz Gerbsch Schwimmhilfe
EP0063666A1 (de) * 1981-04-24 1982-11-03 MEDITERRANEE JET CORSE (Société à responsabilité Limitée) Schwimmflosse
US5108327A (en) * 1989-02-01 1992-04-28 Klein Kevin R Retractable swim fin
US5087217A (en) * 1990-09-11 1992-02-11 Tuan C T Swimming shoe
US5292272A (en) * 1993-06-28 1994-03-08 Grim Roger W Dual mode swim fin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333392B2 (en) 2014-08-07 2016-05-10 Kohei Nakamura Underwater propulsion aid and underwater garment equipped with the same

Also Published As

Publication number Publication date
DE19630548C1 (de) 1997-11-20

Similar Documents

Publication Publication Date Title
US2321009A (en) Swim fin
US3411165A (en) Swim fin
US4541810A (en) Swimming apparatus
US4083071A (en) Swim flippers
US3183529A (en) Swimmer&#39;s foot-fin with thrust-accelerating device
US4521220A (en) Swim fin for breaststroke swimmers
US3649979A (en) Swim fin
EP0819450A1 (de) Schwimmschuhe für Taucher oder Schwimmer
WO1995024242A1 (en) Swimming aid
US6568975B1 (en) Staged expandable swim fin
JP4072106B2 (ja) 改良型水泳用トレーニングフィン
US4923419A (en) Positive drive swim fin
US6183327B1 (en) Swim fin structure
AU674914B2 (en) Swim fin with variable stiffness
US10525307B1 (en) Swim fin
USRE23006E (en) Swim fin
US3302222A (en) Swimming flipper
US6561862B1 (en) Swim fin assembly
WO2021064665A1 (en) Swim fin with a longitudinally moulded blade
US5975973A (en) Swim fin
KR100727634B1 (ko) 오리발
KR101934064B1 (ko) 수영용 핀
KR100724159B1 (ko) 물갈퀴가 구비된 신발
WO1992011176A1 (en) Single swim fin for both feet
US242773A (en) George hayes

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

K1C3 Correction of patent application (complete document) published

Effective date: 19980121

AKX Designation fees paid
RBV Designated contracting states (corrected)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19980722