JP2003182685A - Flipper with buckle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable manufacturing cost reduction of a flipper by simplifying the structure of a buckle. <P>SOLUTION: This flipper with a buckle has a flipper part 2, a heel strap 3 and a buckle 4 for connecting them to each other. The buckle 4 comprises two members: a front connecting member 11 and a rear connecting member 12, and a bearing 27 is formed at the front connecting member 11, while a shaft part 32 for engaging/disengaging the bearing part 27 and a strap holding part 33 around which the heel strap 3 is extended to allow length adjustment are formed at the rear connecting member 12. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flipper with a buckle suitable for use in diving.

[0002]

2. Description of the Related Art In a flipper for diving disclosed in Japanese Patent Publication No. 1-38150, a foot pocket and a heel strap are connected via a buckle, and the length of the heel strap is adjusted by the buckle. Is possible. The buckle includes a first connecting member having a sheath-like body and a second connecting member that is attached to and detached from the first connecting member, and the first connecting member is attached to a rear end portion of the foot pocket. The second connecting member has a holding frame portion, and a spring and a movable engaging piece are attached to the holding frame portion.

[0003]

In the known buckle for the flipper, the second connecting member is made up of three parts, that is, the holding frame part, the spring, and the movable engaging piece, and it is troublesome to assemble these parts. Have. This trouble contributes to the increase in the manufacturing cost of the flippers.

An object of the present invention is to reduce the manufacturing cost of the flippers using the buckle by eliminating the labor for assembling the buckle.

[0005]

[Means for Solving the Problems] In order to solve the above problems,
The object of the present invention is a flipper having a foot pocket extending in the front-rear direction, a heel strap located behind the flipper, a connection between the flipper and the heel strap, and a diver. A flipper with a buckle having a buckle capable of adjusting the tightening of the strap with respect to a heel.

The features of the present invention in such a flipper with a buckle are as follows. The flipper portion has an engaging protrusion protruding outward in the width direction.
The heel strap is formed intermittently on one side surface in the lengthwise direction and has engaging teeth extending in the widthwise direction on the inside of both side edge portions. The buckle includes a first connecting member attached to the engaging protrusion and a second connecting member detachable from the first connecting member. The first connecting member has an arcuate bearing portion in which an opening toward the front of the flipper portion is formed behind the engaging protrusion, and the second connecting member has the arcuate bearing portion of the flipper portion. A columnar shaft portion that detachably fits into the bearing portion from the front through the opening and extends in the width direction of the heel strap, and the heel strap is located rearward of the shaft portion and the heel strap has a long tip portion. A strap holder that is adjustable and folded back. The strap holding portion extends parallel to the shaft portion, and a strap folded portion around which the heel strap is wound, and the heel that is positioned behind the folded portion and is parallel to the folded portion and is folded and overlaps. It consists of a pair of strap restraining portions that face each other with the strap sandwiched in the thickness direction.

The present invention has the following embodiments. (1) The width of the opening in the bearing portion is smaller than the diameter of the shaft portion. (2) The engagement protrusion of the flipper can cooperate with the bearing to clamp the shaft fitted in the bearing from the radial direction of the shaft. (3) The strap folding portion of the second connecting member is formed with an engaging portion with which the engaging teeth of the heel strap that has been wound around can come into contact with the strap from the loosening direction of the strap. (4) The first connecting member is located behind the bearing portion between the shaft portion fitted to the bearing portion and the strap holding portion, and cooperates with the strap holding portion to provide the folded portion. The heel strap is wound around the heel strap and has a portion capable of being pinched in the thickness direction.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The details of the flipper with a buckle according to the present invention will be described below with reference to the accompanying drawings.

The flipper 1 with a buckle shown in a perspective view in FIG. 1 has a flipper portion 2, a heel strap 3, and a buckle 4 connecting the flipper portion 2 and the strap 3. . The flippers 2 are made of an elastic material such as plastic elastomer, and have a webbed 6 formed in the front and a foot pocket 7 into which the diver's foot is inserted. The strap 3 is made of natural rubber or other soft and elastic material, and is formed on one side surface thereof, on the outer side surface thereof in the illustrated example, intermittently in the longitudinal direction and extends in the width direction. Have. The buckle 4 is made of a hard plastic material or the like, and is attached via engagement protrusions 5 formed on both side surface portions behind the flipper portion 2. Both tip portions 9 of the strap 3 are attached to the buckle 4 so that the length thereof can be adjusted, and the strap 3 can be fastened to the heel of the diver. Buckle 4
Is detachably fixed to the protrusion 5, and the flipper portion 2
Has a front connecting member 11 and a rear connecting member 12 which is attached to the front connecting member 11 and is attached to the front part 9 of the strap 3 so as to be wound around the front part 9 of the flipper 2. .

2, 3 and 4 are a view taken along the line II-II of FIG. 1, an exploded perspective view of the buckle 4 and an assembly view of the buckle 4, and the strap 3 is shown in phantom in FIG. , Fig. 4
Is shown with the strap 3 removed from the buckle 4. The projection 5 of the flipper portion 2 has a rear wall surface 16 extending toward the rear side of the flipper portion 2 in the vertical direction in FIG. 2, and as shown in FIG. It has a groove portion 17 extending to F.

The front connecting member 11 of the buckle 4 has an arcuate front portion 18 and a rear portion 19 extending in the width direction of the strap 3.
Have and. The front portion 18 is located outside the protrusion 5 and is rotatable about the protrusion 5, and the inner protruding portion 21 of the front portion 18 is fitted in the groove portion 17 of the protrusion 5 from the left side in FIG. . The rear portion 19 of the front connecting member 11 has a rear surface portion 22 and both side surface portions 23, a first stopper 24 slightly protruding rearward is formed on an outer surface of an upper portion of the rear surface portion 22, and an upper portion of both side surface portions 23 is formed. A second stopper 26 is formed on the outer surface so as to slightly project laterally. A bearing portion 27 having an arcuate concave surface is formed in each of the portions where both side surface portions 23 are connected to the front portion 18, and each of the bearing portions 27 has an opening 30 facing the front of the flipper portion 2. When such a front connecting member 11 is moved to the left in FIG. 2, the projecting portion 21 comes out of the groove portion 17, so that it can be removed from the protrusion 5.

The rear connecting member 12 of the buckle 4 has both side portions 31 extending parallel to the front-rear direction of the flipper portion 2 and a shaft portion 3 extending between the both side portions 31 located near the front of the flipper portion 2.
2 and a strap holding portion 33 that is located closer to the rear and extends between the both side portions 31. The distance between the both side portions 31 is made larger than the width of the rear surface portion 22 of the front connecting member 11. The shaft portion 32 also has a columnar shape and extends in the width direction of the strap 3. The shaft portion 32 can be fitted into and disengaged from the bearing portion 27 of the front coupling member 11 through the opening 30, and when fitted, the bearing portion 32. It is slidably attached to the peripheral surface of 27 in the circumferential direction. In one embodiment of the present invention, the bearing portion 2
7 is made so that its peripheral length slightly exceeds ½ of the peripheral length of the shaft portion 32. The width L (see FIG. 2) of the opening 30 in the bearing portion 27 becomes slightly smaller than the diameter D of the shaft portion 32, and at least one of the bearing portion 27 and the shaft portion 32 is fitted by elastic deformation. The shaft portion 32 after the fitting and the fitting is not accidentally separated from the bearing portion 27. However, the present invention can be implemented in a mode in which the width L of the opening 30 is larger than the diameter D of the shaft portion 32.
The strap holding portion 33 includes a strap folding portion 34 that extends in the vertical direction in the figure and has a J-shaped cross section, and a pair of upper and lower strap restraining portions 36 and 37 that are behind the folding portion 34 and are separated from each other. Have and. The upper strap restraining portion 36 extends so as to connect the both side portions 31 and 31, but the restraining portion 36 is shown in a broken manner in the drawing. The lower strap restraint 37 is
Although extending from each of the both side portions 31 and the extended tip portions 38 thereof are opposed to and separated from each other in the central portion between the both side portions 31, only one of the strap restraining portions 37 is shown in FIGS. There is. The strap 3 can pass between the spaced apart tip portions 38.

The manner in which the strap 3 is attached to the rear connecting member 12 is shown in FIG. In the strap 3 shown in phantom in FIG. 2, the tip portion 9 has the flipper portion 2
After being inserted into the upper and lower strap restraining portions 36 and 37 from the rear side of the drawing, that is, from the right side of the drawing, the folding portion 34 is folded back. The folded back tip portion 9 extends between the upper and lower strap restraining portions 36 and 37 and extends rearward.
In such a strap 3, the engaging teeth 8 hit the jaw 39 of the J-shaped strap folding portion 34, and the strap 3 loosens while the flippers 1 are worn, that is, the tip portion 39 moves to the left in FIG. It prevents you from moving. Further, the vertical spacing between the upper and lower strap restraining portions 36, 37 is adjusted so that the folded and overlapped straps 3 can be clamped so that they are in contact with each other as shown in the drawing. Further, the strap folding portion 34 and the upper strap restraining portion 36 are arranged so that the strap 3 can be bent between the both portions 34, 36 as shown in the drawing. The strap 3 folded and folded in this way has a tip portion 9
It is possible to shorten the dimension between both buckles 4 so as to tighten the heel of the diver by strongly pulling toward the rear of the foot pocket 7, but the length of the strap 3 is short unless it is so pulled. Never be. In order to loosen the strap 3, the tip portion 9 extending rearward is moved forward (to the left in the figure), and the engaging tooth 8 that is in contact with the jaw 39 of the folding portion 34 is removed to remove the entire strap 3. To move backwards. In this way, the strap 3 can be attached to the buckle 4 or both buckles 4
The work of adjusting the length of the strap 3 in the interval is generally performed with the rear connecting member 12 removed from the front connecting member 11, and the structure of the rear connecting member 12 is particularly effective in such a state. It is designed to be easy to work with.

The rear connecting member 12 to which the strap 3 is attached has its shaft portion 32 fitted to the bearing portion 27 of the front connecting member 11 attached to the protrusion 5 of the flipper portion 2, and the fitted shaft portion. 32 is swiveled around so that it is aligned with the front connecting member 11 as shown in FIGS. When wearing the flippers 1 prepared in this way,
If the tightening of the strap 3 with respect to the heel is weak, the length of the strap 3 can be adjusted by strongly pulling the tip portion 9 of the strap 3 backward.

In the preferred buckle 4 with the connecting members 11 and 12 connected to each other, as shown in FIG.
The shaft portion 32 is pressed from the radial direction in cooperation with the shaft portion 32. Protrusion 5
Is a part of the flipper portion 2 and is made of an elastic material. Therefore, when the shaft portion 32 is fitted into or disengaged from the bearing portion 27, a force is applied to the shaft portion 32 to elastically deform the protrusion 5. . Further, the rear surface portion 22 of the front connecting member 11 in the preferable buckle 4 cooperates with the jaw portion 39 of the folded portion 34 in the rear connecting member 12 to clamp the strap 3, so that the strap 3 is inadvertently loosened in the loosening direction. Stop moving. The first stopper 24 located above the rear surface portion 22 abuts the strap 3 when the rear connecting member 12 pivots in the direction of arrow P in FIG.
Is prevented from accidentally coming off the front connecting member 11. Further, the second stopper 26 located above the side surface portion 23 of the front connecting member 11 has the rear connecting member 12 when the rear connecting member 12 is about to turn in the arrow P direction.
It abuts against the third stopper 45 (see FIGS. 2 and 3) formed as a projection on the inner surfaces of both side portions 31 of the rear side member 31 to prevent the rear connecting member 12 from unintentionally turning in the arrow P direction. However, when it is necessary to release the connection between the two connecting members 11 and 12, both side portions 31 of the rear connecting member 12 are connected to the second stopper 2.
The rear connecting member 1 so that the strap 3 can ride over the first stopper 24 while riding over 6.
A force is applied to 2 to rotate in the direction of arrow P, and after the rotation, the shaft portion 32 is separated from the bearing portion 27.

In the buckle 4 thus formed, in order to prevent the shaft portion 32 from being unintentionally detached from the bearing portion 27, the opening width L of the bearing portion 27 is set to the shaft portion as shown in the figure. It is preferable to use together a means for making the diameter D smaller than 32 and a means for pinching the shaft portion 32 by the rear surface 16 of the projection 5 and the bearing portion 27, but using only one of these means It is also possible to carry out.

[0017]

EFFECT OF THE INVENTION In the flipper with a buckle according to the present invention, the buckle for connecting the flipper and the strap has a simple structure consisting of only two members, a front connecting member and a rear connecting member. Moreover, both of these members do not require assembly work. Therefore, the flippers using this buckle can have a lower manufacturing cost than those using the buckle of the prior art.

[Brief description of drawings]

FIG. 1 is a perspective view of a flipper with a buckle.

2 is a view taken along the line II-II of FIG.

FIG. 3 is an exploded view of the buckle.

FIG. 4 is an assembly drawing of the buckle.

[Explanation of symbols]

1 buckle 2 flippers 3 heel strap 4 buckles 5 engagement protrusion 7 foot pockets 8 engaging teeth 11 1st connection member (front connection member) 12 Second connection member (rear connection member) 27 Bearing 30 openings 33 Strap holder 32 shaft 34 Strap folding part 36 Strap restraint 37 Strap restraint 39 parts (chin) D diameter L width

Claims (5)

[Claims] 1. A flipper having a foot pocket extending in the front-rear direction, a heel strap positioned behind the flipper, a connection between the flipper and the heel strap, and the strap for a diver's heel. In a flipper with a buckle having a buckle capable of adjusting the tightening of, the flipper portion has an engaging protrusion protruding outward in the width direction, and the heel strap is intermittent in a longitudinal direction on one side surface thereof. Formed in a horizontal direction, and has engaging teeth extending in the width direction inside both side edge portions, and the buckle has a first connecting member attached to the engaging protrusion and a first connecting member detachable from the first connecting member. Two connecting members, the first connecting member has an arcuate bearing portion in which an opening toward the front of the flipper portion is formed behind the engaging protrusion, and the second connecting member is provided. Is a cylindrical shaft portion that is removably fitted to the bearing portion through the opening from the front of the flipper portion and extends in the width direction of the heel strap, and is located rearward of the shaft portion. The heel strap has a strap holding portion whose tip portion is folded back so that the length thereof can be adjusted, the strap holding portion extends in parallel with the shaft portion, and the heel strap is wound around the strap folding portion, and the folding back portion. A pair of strap restraining portions that are located at the rear of the portion and that are parallel to the folded portion and that substantially face each other with the folded and overlapping heel straps sandwiched in the thickness direction. Fin. 2. The flipper according to claim 1, wherein the width of the opening in the bearing portion is smaller than the diameter of the shaft portion. 3. The engagement protrusion of the flipper portion can clamp the shaft portion fitted to the bearing portion in the radial direction of the shaft portion in cooperation with the bearing portion. Or the flipper described in 2. 4. The strap folding portion of the second connecting member is formed with a portion where the engaging teeth of the heel strap that has been wound around can come into contact with the heel strap from the loosening direction of the heel strap. The flippers according to any one of to 3. 5. The first connecting member is located between the shaft portion fitted to the bearing portion and the strap holding portion behind the bearing portion, and cooperates with the strap holding portion to position the strap holding portion. 3. The heel strap, which is wound around the folded-back portion, has a portion capable of pinching in the thickness direction.
The flipper according to any one of 4 above.