CN2264022Y - Swinning-aid fin - Google Patents

Abstract

The utility model relates to a swimming supporting fin, which comprises a foot fin which can be swung up and down in a folded or unfolded way at the a shoe part, a leg fin outside a leg, and a wearing part which can be tied to an elbow part, an axilla part and a waist part. A plurality of run-on condyles are extended outwards from the sides of the wearing part, and flexible film type fin parts are arranged between every two condyles; bending parts are arranged between every two condyles to help a human body to obtain larger buoyant force and propulsive force when a double arm of the human body is stretched. The utility model also comprises a conic cover which can be worn on a head and is extended to a shoulder and a back of the human body, and the resistance of swimming can be reduced.

Description

Swinning-aid fin

The utility model relates to a kind of swimming aid material, refers in particular to a kind of Swinning-aid fin that increases the power of snorkeling and can prevent the water resistance increase.

The most frequently used auxiliary appliance of swimming underwater in the water or snorkel is flippers and air bottle, and more exquisite people can dress webbed gloves, advances in the water assisting.The most satisfied movable thing be no more than can enjoying speed sense like a cork in the water, but easily the two often has the part of conflict with speed sense.

The effect of webbed gloves and flippers is in order to enlarge the contact-making surface of hand or pin and water equally, during by hand or pin paddling, increases hydraulic pressure and obtains reaction force and quicken to advance.If the use of these equipment only on paper or understand, can mistake be thought and has been dressed webbed gloves and flippers is an a piece of cake, but actually not so.For a people without long-term training, wearing webbed gloves or flippers can make the amount of exercise of hand or foot muscles heighten and feel tired out immediately, if the increase that can understand at the water medium velocity this phenomenon is not to be the geometric ratio relation with water resistance, promptly can suddenly see the light.Generally speaking, when the water medium velocity doubled, water resistance had more than and doubles, but increased nearly ten times.

Understand that diving or the people that snorkels all know, the shoulder of human body, the air bottle at back, if the sole back of the body is not parallel with shank and present and generally now think and normal plumbness all can increase the water resistance when advancing even.Principle as mentioned above, only utilizing shank laterally to play water backward is a unwise move, therefore can be durable and the effective posture of applying waterborne, should be to make thigh, shank and sole keep a straight line as far as possible, when swinging up and down, just can obtain propulsive force more stably.

The swimmer that dives plays water with foot and when obtaining to advance in water, can make to produce the sinuous flow of big or small whirlpool set because of playing hydrodynamic(al), this phenomenon is obvious especially when the existing flippers of wearing is played water, and aforementioned whirlpool sinuous flow can produce a low pressure phenomenon, and has the foot that an attraction goes to hold latent swimmer.Therefore, if can manage to eliminate this sinuous flow, can make the laminar flow of water keep good, the resistance when helping latent swimmer to advance in water reduces.The lifeguard all knows in all experienced water, the rescue key of success, usually only be early to obtain and save a second person to be rescued, but sometimes, even outstanding lifeguard can find swimmer's drowned phenomenon early, but because of the relation of distance, and make evening on opportunity of saving the drowning person one step also can cause sorry.Therefore if can there be a swimming aid can assist to advance rapidly, will help to increase and rescue human efficiency.

Another problem movable in water is, the people that major part is swum underwater, all wishing can be more of a specified duration in certain stop more like a cork in the seabed, that is to say, hope can be a certain somewhere eminence can be how floating once, do not pressed down by the weight of body weight and air bottle too soon and sink.But up to now, going back the suitable utensil of neither one can assist people to make one's wish fulfilled.

The purpose of this utility model is to provide a kind of unprecedented simple structure and dresses and is easy to Swinning-aid fin, and this Swinning-aid fin has following effect:

1, assist latent swimmer in water, to dive trip more like a cork with floating;

2, can promote the propulsive force of swimming underwater in the water;

3, can do for the swimmer's that dives shank and foot and swing up and down, the hydrodynamic(al) that pushes away that produces as the big fin is done, and displacement is increased and advances rapidly.

4, can suppress the sinuous flow of diving and to produce when swimmer's foot is played water, and keep the laminar flow of water and reduce the resistance that advances in swimming underwater.

The Swinning-aid fin that the utility model provides has a pair of left footwear 7A of portion and the right footwear 7B of portion for the foot wearing, and this each footwear portion is being equivalent to extend to form flexible web 70 forward between female toe of foot and the sufficient little toe.And: the heel outside of each footwear portion, projection is extended a pillar 71 laterally, by this pillar the place ahead, the outside to sufficient little toe, extends a flexible film-like foot fin 7 that joins together in the above-mentioned footwear portion outside, and the web 70 of this foot fin and sufficient little toe front end connects as one.

The Swinning-aid fin that the utility model provides, also include: a pair of boots portion, this boots portion comprises one at least by being equivalent to the ankle position along the upwardly extending joint 80 in the shank outside, have on this joint at least one pair of before or after the shank around buckling piece 81, above-mentioned joint can be reclined each other and be fixed in shank, and above-mentioned joint extends a film laterally between the above-mentioned pillar 71, joins together to form a flexible membranaceous leg fin 8, and the lower end of this leg fin 8 is sleeved on the pillar 71 of footwear portion.

The outermost of the sufficient fin 7 of an above-mentioned left side or right footwear portion is the longest position, and the female toe of foot and the web 70 between sufficient little toe have the turn of bilge 72 of an indent, can form a big indent turn of bilge 73 jointly when a left side and right footwear portion close up.

The leg fin 8 of an above-mentioned left side or right footwear portion has the turn of bilge 82 of an indent.

Respectively there is a fastener 74,75 that can make left footwear portion and right footwear portion's combination with one another or disassemble above-mentioned ankle inboard, in order to both legs and close or separately swing.

The upper end of above-mentioned joint 80 is skewed toward the place ahead, the outside of shank.

The utility model Swinning-aid fin also includes:

A pair of confession is worn on the armpit fin of both sides, human body oxter, the several joints 20 that help swimming armpit fin to comprise wearing portion 11, join together by this wearing portion of each side, and join together membranaceous fin 30 between above-mentioned each joint;

Above-mentioned wearing portion has a vertical side 12, with a top margin 13 by the summit horizontal expansion of this side; Above-mentioned side and top margin respectively are provided with dresses element 14; Being stretched out in many places by above-mentioned side constitutes several joints 20, and is joining together flexible membranaceous fin 30 between each joint and side or the top margin.The wearing element of wearing portion is tied to user's arm part and body position at least securely.

In addition, the Swinning-aid fin that the utility model provides also comprises:

In order to reduce a head-mounting device 5 of the trip resistance of diving in the water, this device has a wearing portion 51 and taper cover 52, and this wearing portion 51 is worn on user's head, and wearing portion 51 around be connected in taper cover 52, and and this taper cover between across suitable distance; The taper cover is enlarged to its shoulder gradually by user's above-head, forms extension 54, and is set as breach 53 being equivalent to user's face area.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1: the vertical view of the utility model armpit Swinning-aid fin embodiment.

Fig. 2: the vertical view of another embodiment of the utility model armpit Swinning-aid fin.

Fig. 3: the view along A-A line among Fig. 1 is cut shows the bending of top margin and joint

Neck columnar structure.

Fig. 4: the partial side view of the utility model head taper cover.

Fig. 5: the view that is cut along B-B line among Fig. 4.

Fig. 6: the front view of the Swinning-aid fin embodiment of foot and shank.

Fig. 7: the outer side plan view of the Swinning-aid fin embodiment of foot and shank.

Fig. 8: the interior side plan view of the Swinning-aid fin embodiment of foot and shank.

Fig. 9: similar Fig. 6, but show the action that foot stretches.

Figure 10: the cutaway view that is cut along C-C line on Fig. 9.

Figure 11: the cutaway view that is cut along D-D line on Fig. 9.

Figure 12: similar Fig. 9, but show both feet and the situation of closing.

Figure 13: the stereogram of another embodiment of the utility model.

Code name explanation among the figure:

The 11-wearing 12-of section side 13-top margin 131-kink 14-dresses element 20-joint 21-and swings the large indent turn of bilge 74 of the base portion 30-fin 41-ancon 42-armpit 43-waist 44-wrist 45-knee 46-ankle 47-head 48-shoulder 5-auxiliary equipment 51-wearing 52-of the section taper cover 53-breach 54-extension 55-tight knot part 6-air bottle 7-foot left footwear 7B-of section of the fin 7A-right footwear 70-of section web 71-pillar 72-turn of bilge 73-, 75-fastener 8-leg fin 80-joint 81-buckling piece 82-indent turn of bilge

First kind of embodiment of the Swinning-aid fin that the utility model provides shown in Fig. 1 and 2, comprises wearing portion 11 and the several joints 20 that joined together by this wearing portion 11, and joins together in the membranaceous fin 30 of 20 at each joint.In order to simplify drawing, scuba diver's general outfit as parts such as respiratory siphon, face mirror, flippers, two cartridges and life vests, is all omitted in this figure.

Wearing portion 11 has a vertical side 12, with a top margin 13 by the summit horizontal expansion of side 12; Side 12 respectively is provided with top margin 13 and dresses element 14, for firmly being tied to user's body side and arm below.Side 12 stretches out in many places and constitutes several joints 20, and is joining together flexible membranaceous fin 30 between each joint 20 and side 12 or the top margin 13; The wearing element 14 of wearing portion 11 is tied to user's ancon 41, armpit 42 and waist 43 at least securely.

Fig. 1 and side that is worn on human body of 2 demonstrations, but actual application should be left-right symmetry.Shown in the drawings again wearing element 14 is knot elements, but also can use other equivalence element, as the glove-like pipe or be sewed with the cloth etc. of magic tape, then all do not have can not and from superfluous words needless to say.

Aforesaid device can be made the form of both sides wearing above the waist as shown in Figure 2; But also can make the form of lower part of the body both sides as shown in Figure 1, this moment, wearing portion 11 wearing element 14 also comprised the wrist 44 that is tied to the user securely, or more comprised and lashing in knee 45 and ankle 46.

The one worth embodiment that adopts is arranged, and is that the top margin 13 of wearing portion 11 is provided with kink 131 at ancon 41 places that are equivalent to the user, and the centre of each joint 20 also is provided with swing base portion 21 with these kink 131 contrasts.

Another preferably embodiment be, some is that armpit 42 by the user stretches out radially for a joint 20, and the swing base portion 21 of the kink 131 of top margin 13 and joint 20, forms with the neck columnar structure of reduced cross-sectional, this neck columnar structure can be with reference to figure 3.Because neck columnar structure can swing up and down joint 20 as imaginary line, therefore make Swinning-aid fin form floating A and stabilizers B.Floating A mainly is the floating area of expansion, and stabilizers B then can be when current itself move up and down, and the unlikely direction that moves with seawater produces too big obstructing and the health that results in the user of impacting is not steady.

And for example shown in Fig. 1 and 2,, preferably use the Swinning-aid fin auxiliary equipment that the utility model provides in order to reduce the seawater resistance that increases suddenly, but when utilizing this auxiliary equipment, indulge and do not dress the aforesaid Swinning-aid fin of the utility model, also help improving the speed of trip of diving, so can implement separately.Auxiliary equipment described herein has a wearing portion 51 and taper cover 52, and wearing portion 51 is worn on user's head 47, is linked to taper cover 52 around this wearing portion 51, and and 52 on taper cover across suitable distance (as shown in Figure 5).Taper cover 52 is by user's head 47 tops, enlarges gradually to user's shoulder 48, and is set as breach 53 being equivalent to user's face area, to reduce the resistance of the trip of diving in the water.Preferable example is that taper cover 52 has flexible trailing edge extension 54, and guard shield is in user's shoulder back, and 54 is provided with tying means 55 in the extension, for being tied to the air bottle 6 that the user takes on back.

There are many available elements extension 54 and the tying means that air bottle 6 combines, and as magic tape, clasp etc., all this details mainly are that the extension is covered air bottle 6 at any time unlike giving unnecessary details, and effectively reduce the resistance of water.

In addition, the utility model provides a foot Swinning-aid fin that can use separately, and shown in Fig. 6-13, this foot fin has a left footwear 7A of portion and the right footwear 7B of portion of a pair of symmetry, dresses respectively for two foots.Each footwear portion is being equivalent to extend to form flexible web 70 forward between female toe of foot and the sufficient little toe shown in Fig. 6,7 and 9.The heel outside of footwear portion, projection is extended a pillar 71 laterally, extends a flexible film-like foot fin 7 that joins together in the footwear portion outside by this pillar 71 to the place ahead, the outside of sufficient little toe, and this foot fin and web 70 connect as one.The outermost of foot fin 7 be the longest position, and the web 70 between the female toe of the foot of the utility model indication and sufficient little toe has the turn of bilge 72 of an indent, generation big indent turn of bilge 73 as shown in figure 12 when a left side and right footwear portion close up.

The inboard of aforementioned each footwear portion, the also extensible one sufficient fin than the outside is narrow flexible film.But a better implement example is arranged, and is in the inboard of each footwear portion ankle, as Fig. 8 and shown in Figure 11, respectively is provided with the fastener 74,75 of a wedgeable correspondence, but makes left footwear portion and right footwear portion's combination with one another or disassemble.Disassembling back two legs can be movable separately, and as shown in figure 12, both legs can swing up and down as the fish tail of some lactation fish such as whale after the combination.

The utility model provides the foot Swinning-aid fin to implement separately, or other embodiment described as follows, in addition in conjunction with a shank Swinning-aid fin; In conjunction with mode can be one-body molded by the structure of footwear portion and shank, or the two separates independent moulding, is combined as a whole before use then again.

The Swinning-aid fin of shank, it is ankle place in left footwear portion or right footwear portion, as shown in Figure 7, have one along the upwardly extending joint 80 in the shank outside, have on this joint 80 at least one pair of before or after the shank around buckling piece 81, joint 80 is pressed close to and be fixed in shank, and joint 80 extends a film between the pillar 71 of footwear portion to the shank outside, join together and form a flexible membranaceous leg fin 8.Shown buckling piece 81 also can be by the rubber band of a ring-type in legend, or other analog constitutes.

The upper end of joint 80 as shown in Figure 7, preferably is skewed toward the place ahead, the outside of shank, and also there is an indent turn of bilge 82 in leg fin 8 outsides, will help current successfully to discharge to reduce sinuous flow from the ankle outside.Aforesaid each assembly, all should consider its drag relationship in water with the mechanics angle, allow each position of assembly present the moulding of lower resistance as far as possible, especially aforementioned pillar 71 is if can be the streamline bodily form altogether with sufficient fin 7 and leg fin 8, can reduce the resistance of water, and be optimal to produce than high thrust with this shore supports fin.

Foot and shank Swinning-aid fin separate the structure made as shown in figure 13, after the two was dressed respectively, the lower end of leg fin 8 was sleeved on the pillar 71, and the detailed design of fit has various variations, preferable mode is with the lower end overstriking of leg fin 8 circlewise, is enclosed within then on the pillar 71.Perhaps make the lower end overstriking of leg fin become carefully bar-shaped, and make pillar open a groove in advance, will be somebody's turn to do thin bar-shaped leg fin then and embed in the groove of pillar.

The utility model can assist latent swimmer to obtain bigger displacement, and because of the design of indent turn of bilge has reduced the degree that the whirlpool sinuous flow produces in the draining, makes the swimmer that dives can obtain the quite desirable propulsive force of swimming underwater.

In sum, the novel apparatus that the utility model provides has the following advantages: simple structure, and it is convenient to dress; The swimmer that assists to dive can swim underwater in water more like a cork with floating, and can promote the propulsive force when swimming underwater in the water; Can do swinging up and down for the swimmer's that dives shank and foot, displacement is increased and accelerate gait of march; Can suppress the sinuous flow of diving and to produce when swimmer's foot is played water, keep the laminar flow of water and reduce the resistance that advances in swimming underwater.

Claims (8)

1, a kind of Swinning-aid fin has a pair of left footwear portions (7A) and right footwear portions (7B) for the foot wearing, and this each footwear portion is being equivalent to extend to form flexible web (70) forward between female toe of foot and the sufficient little toe, it is characterized in that:

The heel outside of each footwear portion, projection is extended a pillar (71) laterally, by this pillar the place ahead, the outside to sufficient little toe, extends a flexible film-like foot fin (7) that joins together in the above-mentioned footwear portion outside, and the web (70) of this foot fin and sufficient little toe front end connects as one.

2, Swinning-aid fin according to claim 1, it is characterized in that also comprising: a pair of boots portion, this boots portion comprises one at least by being equivalent to the ankle position along the shank outside upwardly extending joint (80), have on this joint at least one pair of before or after the shank around buckling piece (81), and above-mentioned joint extends a film laterally between the above-mentioned pillar (71), cluster forms a flexible membranaceous leg fin (8), and the lower end of this leg fin (8) is sleeved on the pillar (71) of footwear portion.

3, Swinning-aid fin according to claim 1, the outermost that it is characterized in that the sufficient fin (7) of an above-mentioned left side or right footwear portion is the longest position, and the web (70) between foot female toe and sufficient little toe has the turn of bilge (72) of an indent, can form a big indent turn of bilge (73) jointly when a left side and right footwear portion close up.

4, Swinning-aid fin according to claim 1, the leg fin (8) that it is characterized in that an above-mentioned left side or right footwear portion has the turn of bilge (82) of an indent.

5, Swinning-aid fin according to claim 1 is characterized in that above-mentioned ankle inboard, and fastener (74), (75) that can make left footwear portion and right footwear portion's combination with one another or disassemble are respectively arranged.

6, Swinning-aid fin according to claim 1 is characterized in that the place ahead, the outside of the past shank in upper end of above-mentioned joint (80) is skewed.

7, Swinning-aid fin according to claim 1 is characterized in that also comprising:

A pair of confession is worn on the armpit fin of both sides, human body oxter, the several joints (20) that help swimming armpit fin to comprise wearing portion (11), join together by this wearing portion of each side, and join together membranaceous fin (30) between above-mentioned each joint;

Above-mentioned wearing portion has a vertical side (12), with a top margin (13) by the summit horizontal expansion of this side; Above-mentioned side and top margin respectively are provided with dresses element (14); Being stretched out in many places by above-mentioned side constitutes several joints (20), and is joining together flexible membranaceous fin (30) between each joint and side or the top margin.

8, Swinning-aid fin according to claim 1 is characterized in that also comprising:

In order to reduce a head-mounting device (5) of the trip resistance of diving in the water, this device has a wearing portion (51) and taper cover (52), is connected in taper cover (52) around this wearing portion (51), and and this taper cover between across suitable distance; The taper cover is enlarged to its shoulder gradually by user's above-head, forms extension (54), and is set as breach (53) being equivalent to user's face area.

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