CN2817921Y - Collapsible parachute-shape fin - Google Patents
Collapsible parachute-shape fin Download PDFInfo
- Publication number
- CN2817921Y CN2817921Y CN 200520122669 CN200520122669U CN2817921Y CN 2817921 Y CN2817921 Y CN 2817921Y CN 200520122669 CN200520122669 CN 200520122669 CN 200520122669 U CN200520122669 U CN 200520122669U CN 2817921 Y CN2817921 Y CN 2817921Y
- Authority
- CN
- China
- Prior art keywords
- fin
- supporting plate
- swimming
- web
- parachute
- 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 - Fee Related
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model relates to a pair of collapsible parachute-shaped frog fins, particularly to a pair of swimming fins, and each fin is composed of a fin supporting plate, a binding band, a hinged shaft, supporting laths and a fin film, wherein the fin supporting plate is a sole-shaped flat plate of which the edges form a slope shape, and the front half part and the heel part are respectively provided with a bandage; the edges of the lower part of the flat place is kept with the hinged shafts in sections. Each of a plurality of supporting laths has a thick inner part and a thin outer part for smooth transition, wherein the thin part is unfolded to both sides and hinged on the hinged shaft. The fin film made of waterproof fiber is flatly unfolded and fixed on a supporting plate and can follow the supporting plate to spread and fold. When used, the utility model is generally used for breaststroke, when two legs stroke backward, the parachute-shaped fin is unfolded into a parachute shape so as to generate a large pushing force forward by the reaction of water, so that the swimming speed is accelerated. On the contrary, the two legs fold back after stroking, and the parachute surface shrinks to reduce resistance, which does not affect forward speed. As a sports device, the utility model is mainly used for underwater swimming and long-distance swimming, and in addition, the two fins can be matched to be used as a sunshade in resting by lying on the back.
Description
Technical field
The utility model relates to the swimming web, is the breaststroke formula swimming web that a kind of umbrella shape can fold.
Background technology
How no matter the existing various swimming webs of overall view improve, and its stress surface does not all break away from the shape of triangle, and stressed state is a swing type, and the propulsive thrust that water is given during swimming is limited, thereby its boosting speed and little.
The utility model content
The utility model then is to improve with regard to its present situation; the swimming web that its purpose is to provide a kind of umbrella shape of high thrust to fold; on the one hand; producing bigger reaction thrust by the breast-stroke motion obviously improves pace; aspect in addition; the swimming web launches latter two cooperation and can be used as a kind of facial sunshade utensil, faces upward on the coast and protects face not tanned severely by burning sun when lying rest.
Functional part of the present utility model is made of five parts: web supporting plate, bandage, jointed shaft, support lath and web film.Wherein, the web supporting plate is the flat board of a pattern of outsole, the smooth pin that is used for of upper surface is stepped on, lower surface is smaller, making it the edge takes the form of inclined plane, respectively there is a bandage to be used for fixing at its first half and heel place with pin, edge at lower surface has several and supports the hinged hinge of lath, and it is some to support lath, is made by the engineering plastics consistent with the web supporting plate, in the slow transition of thick outer Boping, thick position is stressed fulcrum, can make trench structure, and hinged with the web supporting plate, thin part is launched gradually to both sides, the web film is open and flat to be fixed on it, and the web film is made by waterproof fibre, is the ellipticity umbrella shape after opening in company with gripper shoe, being a cone-shaped when folding entirely, is flat-top shape of a saddle cover when partly folding.
Description of drawings
Fig. 1 is the section signal of the utility model after opening;
Fig. 2 launches the back vertical view for the utility model;
Fig. 3 is the profile signal when partly folding.
Among the figure, 1 is the web supporting plate, and 2 is bandage, and 3 is twisted axis, and 4 is gripper shoe, and 5 is the web film.
The specific embodiment
The utility model is made simple, now contrasting Fig. 1 and Fig. 2 does and specifies, web supporting plate 1 wherein and gripper shoe 4 adopt the material moulding by casting of high-strength light, described web supporting plate 1 is pattern of outsole, the smooth pin that is used for of upper surface is stepped on, lower surface is smaller, make it the edge and take the form of inclined plane, respectively have a bandage to be used for fixing, leave the hinge 3 of hinged gripper shoe 4 in its lower section along the girth segmentation with pin at its first half and heel place, described gripper shoe 4, in the slow transition of thick outer Boping, in its thick end, remove with the hinged axle sleeve of web supporting plate 1 outside, the termination face will be made an inclined-plane, be convenient to finalize the design,, launch to both sides gradually in its thin end with the hypotenuse face butt joint of web supporting plate 1, whole web film 5 selects for use waterproof fibre cloth to be tiled on the gripper shoe, or sticking or cover all can, be an oval-shaped flat-top umbrella when opening after the general assembly, can taperedly carry after folding, also can become the shape of a saddle and one of them expansion shape to be used to be used for swimming having tired out and face upward the sunshade when getting sun of having a rest of lying.
The utility model generally is to adopt the breaststroke mode when using in water, when two legs are kicked backward, be subjected to the umbrella web that stops of water to be launched into umbrella shape, cause health to produce a bigger thrust forward under a bigger water resistance reaction, the speed of swimming is just accelerated, otherwise, when having pedaled back withdrawal two legs, the umbrella web is just shunk by the drag effect of front water, and the area resistance that diminished has also reduced, and can not influence pace.
The utility model is mainly used in the swimming of swimming underwater and growing distance as a kind of sports equipment.
Claims (2)
1, a kind of umbrella shape can fold frog web, include the web supporting plate, bandage, jointed shaft, support lath and web film, it is characterized in that: the web supporting plate is the flat board of a pattern of outsole, and upper surface is smooth, and lower surface is smaller, the edge is taken the form of inclined plane, at its first half and heel place a bandage is arranged respectively, leave hinge in edge's segmentation of lower surface, it is some to support lath, hinged on it, this supports lath, and the thick outer Boping in lining delays transition, and thin part is launched gradually to both sides, the web film is open and flat to be fixed on it, can open and folds in company with gripper shoe.
2, can fold frog web by the described umbrella shape of claim 1, it is characterized in that: a thick end place that supports lath is a kind of trench structure, and end face is the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122669 CN2817921Y (en) | 2005-09-21 | 2005-09-21 | Collapsible parachute-shape fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122669 CN2817921Y (en) | 2005-09-21 | 2005-09-21 | Collapsible parachute-shape fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2817921Y true CN2817921Y (en) | 2006-09-20 |
Family
ID=37003973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122669 Expired - Fee Related CN2817921Y (en) | 2005-09-21 | 2005-09-21 | Collapsible parachute-shape fin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2817921Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918088B (en) * | 2008-01-21 | 2013-03-20 | 戴卡特隆有限公司 | Apparatus for aquatic exercise |
| CN103239849A (en) * | 2013-05-19 | 2013-08-14 | 张卫 | Breaststroke booster |
-
2005
- 2005-09-21 CN CN 200520122669 patent/CN2817921Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918088B (en) * | 2008-01-21 | 2013-03-20 | 戴卡特隆有限公司 | Apparatus for aquatic exercise |
| CN103239849A (en) * | 2013-05-19 | 2013-08-14 | 张卫 | Breaststroke booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |