JPH10327912A - Fastener structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastener structure in which water tightness and air tightness can be easily and securely achieved. SOLUTION: A slider 3 is provided to cover engagement parts 1a, 1b. A partition wall is not provided on the slider 3, so the engagement parts 1a, 1b are engaged with each other by sliding the slider 3 in either direction. Close to stoppers 8, 9 at both ends of the engagement parts 1a, 1b, bonding parts 10, 11 in which the engagement parts 1a, 1b are bonded to each other are provided. The slider 3 is slided to exceed an inner end 12 of the bonding part 10 in a direction of an arrow A. For releasing engagement, openers 4a, 4b provided on tape members 2a, 2b are pulled right and left.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to watertightness such as dry suits, chemical suits, survival suits, water pillows, air cushions and waterproof bags for water sports such as windsurfing, surfing, jet skiing, water skiing and diving. And a fastener structure used for an opening or the like that requires airtightness.

[0002]

2. Description of the Related Art Conventionally, various fastener structures such as zippers and hook-and-loop fasteners have been proposed and put to practical use. FIG.
1 shows an example of a conventional fastener structure. The fastener structure is mainly wrapped around the left and right tape-shaped pieces 32a, 32b having facing portions 31a, 31b at their upper edges and facing each other, and is slidable back and forth. And a slider 33. This type of fastener structure is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 7-165244.

The engaging portions 31a and 31b have hook members 35a and 35b projecting inward, respectively. The hook member 35a on the left side in FIG. 6 has a bent portion 36a that is bent upward at its tip, and the hook member 35b on the right side has a bent portion 36b that is bent downward at its tip. When the left and right bent portions 36a and 36b are engaged with each other, the two biting portions 31a and 31b are engaged with each other. When the left and right bent portions 36a and 36b are released from each other, the two biting portions 31a and 36b are released. The bite of 31b is released. In this fastener structure, two pairs of hook members 35a and 35b are provided.

[0004] The planar shape of the slider 33 is substantially trapezoidal as shown in Fig. 7, and the inner dimension L4 on the rear end side is smaller than the inner dimension L5 on the front end side. In the vicinity of the front end side, a partition wall 38 is hung downward from the left and right centers of the upper surface (see FIG. 6). When the slider is slid in the direction shown by the arrow C in FIG. 6 in a state where the bite portions 31a and 31b are not biting, the outside of the bite portions 31a and 31b is pressed inward by the side walls 37 and 37 of the slider 33. The left and right bent portions 36a and 36b are engaged with each other. Conversely, when the occlusal portions 31a and 31b are engaged, the slider 3
When the slide 3 is slid in the direction indicated by the arrow D in FIG. 6, the two bite portions 31 a and 31 b are pushed open by the partition wall 38, and the engagement between the left and right bent portions 36 a and 36 b is released.

In this fastener structure, the occlusal portions 31a,
The portion where 31b bites is kept watertight and airtight.
However, the slider 33 slides in the direction of arrow C,
In the vicinity of the hit point, since the partition wall 38 exists between the two bite portions 31a, 31b, the bite remains released, and liquid and gas can flow through the gap between the bite portions 31a, 31b. Therefore, this fastener structure cannot be used for applications requiring watertightness or airtightness.

Incidentally, for example, in a dry suit for a jet ski or the like, an opening is provided for attaching and detaching the dry suit to a human body. When the dry suit is used, the opening is closed by the zipper structure, but the zipper structure needs to be watertight to prevent water from entering the dry suit. The fastener structure shown in FIG. 8 is conventionally used for a portion where water tightness is required. In this fastener structure, a zipper 44 is provided at the upper edge of the tape-shaped pieces 42a and 42b facing each other. The zipper 44 is attached to the tape-like piece 42.
A plurality of elements 45a, 45b (generally made of metal) penetrating the tape-like pieces 42a, 42b are provided at the upper edges of the a, 42b. When the slider 43 is slid in the direction of arrow E, the two tape-shaped pieces 42a,
The elements 45a and 45b provided on the 2b are engaged with each other, and the inner surfaces of both tape-shaped pieces 42a and 42b abut. The inner surface is coated with an elastic material such as polyvinyl chloride, polyurethane, chloroprene rubber,
Watertightness of this portion is achieved by the contact between the elastic bodies.

In this fastener structure, the slider 43 is slid in the direction of the arrow E, and the occlusal state is maintained in the vicinity of the point where the slider 43 is located because the partition wall 48 exists between the elements 45a and 45b. Then, the lower tape-shaped pieces 42a and 42b of the part where the occlusion is released and the part slightly shifted to the arrow F side therefrom are bonded to each other. The portion between the bonded portion and the zipper 44 is greased up, thereby achieving watertightness of the entire fastener structure.

However, in this fastener structure, watertightness is achieved by grease which is a fluid, so that grease flows when, for example, water pressure is applied to the fastener structure, or grease is scraped when a dry suit is attached or detached. Then, the watertightness may not be maintained. In addition, grease must be frequently applied in order to maintain water tightness, which is troublesome. Further, the fastener structure using the zipper 44 has a problem that the structure is complicated and the manufacturing cost is high.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a fastener structure that can easily and surely achieve watertightness and airtightness.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a left and right tape-shaped piece which is located opposite to each other and has an engagement portion at an upper end edge, and wraps around the engagement portion. In the fastener structure provided with a slider that is slidable back and forth, both bite portions are adhered to each other near both front and rear ends thereof, and the slider is slid forward or backward. It is also configured to occlude the left and right occlusions, and both tape-shaped pieces are provided with an opener for releasing the occlusion of the occlusions, and are made of a water-impermeable material. (Claim 1). According to the present invention, watertightness and airtightness can be easily and reliably achieved as described later. In the present invention, the occlusion portion has a structure provided with a hook member having a bent portion at the tip, and the bending portion provided at the bending direction of the bent portion provided at the left occlusion portion and at the right occlusion portion. The direction of bending is opposite to the direction in which the right and left bent parts are engaged with each other, so that the two occluded parts are engaged with each other. What is necessary is just to comprise so that it may be canceled (claim 2). By doing so, the structure is simpler than a zipper structure or the like, and a fastener structure can be obtained at low cost.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.

FIG. 1 is a front view of a fastener structure according to an embodiment of the present invention, FIG. 2 is a partially omitted perspective view of the fastener structure, and FIG. 3 is a plan view of a slider used in the fastener structure. It is. This fastener structure is mainly composed of left and right tape-shaped pieces 2a, 2b which are positioned facing each other and have engaging portions 1a, 1b at the upper end edges, respectively.
A slider 3 wrapped around the occlusal portions 1a and 1b so as to be slidable back and forth, stoppers 3 provided at both front and rear ends of the occlusal portions 1a and 1b, and openers 4a and 4b.

The engaging portions 1a and 1b are provided with hook members 5a and 5b projecting inward. The hook member 5a on the left side in FIG. 2 has a bent portion 6a bent upward at its tip, and the hook member 5b on the right side has a bent portion 6b bent downward at its tip. The left and right bent portions 6a and 6b are engaged with each other to engage the two biting portions 1a and 1b, thereby forming the left and right bent portions 6a and 6b.
The disengagement of the two causes the two occlusal portions 1a, 1b
Is released. This structure is the same as the conventional fastener structure shown in FIG. In the conventional fastener structure shown in FIG. 6, two pairs of hook members 35a, 35
Although the b is provided, in this fastener structure, three pairs of hook members 5a and 5b are provided in order to further enhance watertightness. Of course, the number of the hook members 5a and 5b is appropriately increased or decreased according to the use to which the fastener structure is applied.

The plane shape of the slider 3 is substantially rectangular as shown in FIG. The slider 3 does not include the partition walls 38 and 48 unlike the conventional sliders 33 and 43. The inner dimension L3 between the side walls 7, 7 of the slider 3 is set to be smaller than the dimension obtained by adding the width of the left bite 1a and the width of the right bite 1b. Therefore, slider 3
The left and right bent portions 6a and 6b are engaged with each other regardless of whether the slider slides in the direction of arrow A or the direction of arrow B in FIG.

As shown in FIG. 1, the fastener structure has stoppers 8 and 9 at both ends of the bite portions 1a and 1b. The stoppers 8 and 9 are provided with left and right occlusion portions 1a,
1b and a function of providing the end of the slider 3. At both ends of the occlusal portions 1a and 1b, an adhesive portion 10 to which the occlusal portions 1a and 1b are adhered,
11 are provided. The bonding is achieved by an adhesive, heat fusion or the like. The length L1 of the bonding portions 10 and 11 is set slightly longer than the length L2 of the slider 3.

In a state where the bite portions 1a and 1b are released from the bite and the slider 3 is at the right end in FIG.
Is slid in the direction of arrow A, the bent portions 6a and 6b are sequentially engaged as the slider 3 passes. Since the slider 3 does not include the partition walls 38 and 48 as described above, the inner end 1 of the slider 3 is not hindered by the bonding portion 10.
2 and can proceed further on the bonding portion 10 and hit the stopper 8. In this way, the area between the points P1 and P2 and the area between the points P3 and P4 are fixed or adhered, and the area between the points P2 and P3 are engaged.
At the points P2 and P3, the occlusal state and the adhesive state are continuous, and complete watertightness of the entire fastener structure (that is, the entire point P1 to the point P4) is achieved. In addition,
In order to achieve watertightness, the tape-shaped pieces 2a and 2b including the occlusion portions 1a and 1b must be made of a water-impermeable material. Examples of such a material include a synthetic resin such as polyvinyl chloride.

Next, referring to FIG. 4, the occlusal portions 1a, 1b
The method of releasing the occlusion of the patient will be described. Since the slider 3 of the present fastener structure does not include the partitions 38 and 48 as described above, the bite cannot be released by sliding the slider 3. Further, in a state where the occlusion portions 1a and 1b are engaged, the lower portions of the tape-shaped pieces 2a and 2b and
Even if the fabric provided continuously below the a and 2b is pulled to the left and right, the bite is not released because the bent portions 6a and 6b are engaged. In this fastener structure, flap-shaped openers 4a and 4b are provided outside the bite portions 1a and 1b of the left and right tape-shaped pieces 2a and 2b. This opener 4
When a and 4b are pulled to the left and right, a force in the rotational direction indicated by arrows X and Y acts on the two bite portions 1a and 1b. And
By this rotation, the engagement of the left and right bent portions 6a, 6b is released, and the occlusion of the occlusion portions 1a, 1b is released.

To cause rotation, the opener 4
Preferably, a and 4b are provided above the tape-shaped pieces 2a and 2b as much as possible. Openers 4a and 4b are tape-shaped pieces 2
When the slider 3 is provided above the sliders a and 2b, the slider 3 may not be able to pass through the openers 4a and 4b depending on the shape of the slider 3. In this case, the sliders 3 are provided on both front and rear sides of the openers 4a, 4b, and the front slider 3 engages with the bite 1 in front of the openers 4a, 4b.
a, 1b, and the rear slider 3 engages the bite portions 1a, 1b behind the openers 4a, 4b.
The occlusion portions 1a and 1b near the openers 4a and 4b may be held down by hand to occlude.

The openers 4a, 4b may be adhered directly to the outside of the tape-like pieces 2a, 2b with an adhesive or the like, or may be adhered to the outside of the cloth adhered to the outside of the tape-like pieces 2a, 2b. . Further, a plurality of pairs of openers may be provided at different positions.

The shape of the openers 4a and 4b is a flap shape, but the shape of the openers is not limited to this. For example, the upper surfaces of the occlusion portions 1a and 1b may be expanded outward to form a flange, and may be an opener. In this case, the occlusal portions 1a, 1 including the expanded flange-like portion are also provided.
What is necessary is just to set the shape of the slider 3 so that the slider 3 may be wrapped all over b.

In this fastener structure, the bent portions 6a, 6
occlusal parts 1a, 1
b is configured, but the configuration of the occlusal portion is not limited to this. For example, as shown in FIG.
And the concave spherical portion 53 into which the spherical projection 52 fits,
The bite portions 51a and 51b may be configured. That is, the occlusal portion in the fastener structure of the present invention may be any structure as long as watertightness or airtightness is achieved.

[Experimental Example] A dry suit for a jet ski having a detachable opening in a portion corresponding to the torso of a human body is prepared, and the fastener structure shown in FIG. The part was occluded. Openings of the dry suit corresponding to the neck, both ankles and the left wrist of the human body were closed with a rubber band, and air was filled into the dry suit with a compressor using the opening corresponding to the right wrist as an inlet. When the internal pressure reaches 0.3 kg / cm ² , the filling is stopped,
The inlet was closed with a rubber band.

The dry suit thus filled with air was floated in a water tank, a plate was laid thereon, this plate was connected to the ram of a hydraulic press, and the hydraulic press was operated to submerge the dry suit. And it was maintained at a water depth of 50 cm for 5 minutes, and the presence or absence of air leakage from the fastener structure was visually checked. No air leaks were seen. From this experimental result, it is understood that the present fastener structure is excellent in watertightness.

The present invention has been described above by taking a dry suit as an example. However, the present invention is applicable to all applications requiring water tightness or air tightness, such as chemical sheets, survival suits, water pillows, air cushions, and waterproof bags. Applicable.

[0025]

As described above, according to the fastener structure of the present invention, watertightness and airtightness can be easily and reliably achieved.

[Brief description of the drawings]

FIG. 1 is a front view showing a fastener structure according to an embodiment of the present invention.

FIG. 2 is a partially omitted perspective view showing the fastener structure shown in FIG. 1;

FIG. 3 is a plan view showing a slider used in the fastener structure shown in FIG. 1;

FIG. 4 is a partially omitted perspective view showing a state in which the bite of the fastener structure shown in FIG. 1 is released.

FIG. 5 is a cross-sectional view showing an occlusal portion of a fastener structure according to another embodiment of the present invention.

FIG. 6 is a partially omitted perspective view showing a conventional fastener structure.

FIG. 7 is a plan view showing a slider used in the fastener structure shown in FIG. 6;

FIG. 8 is a partially omitted perspective view showing another conventional fastener structure.

[Explanation of symbols]

 1a, 1b, 51a, 51b ... Occlusion part 2a, 2b ... Tape-shaped piece 3 ... Slider 4a, 4b ... Opener 5a, 5b ... Hook member 6a, 6b ... Bending part 7 ... side wall 8, 9 ... stopper 10,11 ... adhesive part 12 ... inner end 52 ... spherical projection 53 ... concave sphere

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Shuichi Murata Thailand 18150 Saraburi Wihandendan Bangram Suvarnabhone Road M3 255 Surf Dynamics Company Limited

Claims (2)

[Claims] 1. A fastener structure comprising left and right tape-shaped pieces which are opposed to each other and have an engagement portion at an upper edge thereof, and a slider which is wrapped around the engagement portion and is slidable forward and backward. The two bite portions are adhered to each other near the front and rear ends thereof, and the slider is configured to bite the left and right bite portions both when slid forward and backward. A fastener structure, wherein the shape piece is provided with an opener for releasing the bite of the bite portion, and is made of a water-impermeable material. 2. The left and right occlusal portions include a hook member having a bent portion at a tip thereof, and a bending direction of a fold portion provided on a left occlusal portion and a fold provided on a right occlusal portion. The direction of bending is opposite to the direction in which the left and right folds are engaged. The fastener structure according to claim 1, wherein the fastener structure is configured to release the bite of the part.