JP2007275590A - Fluid-tight slide fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply manufacture a fluid-tight slide fastener having reliability for a long period more simply. <P>SOLUTION: This fluid-tight slide fastener includes a pair of tapes 12 both delimited by two opposite long edges 13a and by two opposite short edges 13b and a slider. Each tape 12 includes a textile material strip coated with a fluid barrier material layer 16, 18, the strip 14 remaining uncoated at least one of the short edges of each tape, each tape 12 being equipped with a set 20 of aligned teeth 21 on at least a portion of one of the long sides thereof, the aligned teeth of the sets facing each other and being associated with opposite opening and closing stops 24, 26, and a slider 22 slidable between the closing stop 26 and the opening stop 24 for engaging in a fluid-tight way or disengaging the aligned teeth respectively. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates, in general terms, to a slide fastener.
In particular, the present invention relates to a fluid-tight slide fastener, that is, a slide fastener that can be sealed against fluid.

  In the following description, the term “fluid seal” means, for example, a liquid, even if the pressure difference between the inside and outside of the slide fastener is under a predetermined high limit, eg up to about 2 bar. In particular, it means a sealing that prevents the passage of water and / or gas (eg air).

  More specifically, the present invention relates to a fluid-tight slide fastener of the type consisting of a pair of tapes both separated by two opposing long sides and two opposing short sides, and a slider, each tape having their Each tape comprises a set of teeth aligned with at least a portion of one of its long sides, each of which comprises a strip of fibrous material coated with a fluid barrier material at least corresponding to the opposing surface The sets of face-to-face and with opposing opening and closing stops are each slidable between the closing and opening stops to separate teeth that mesh or align in fluid-tight manner, respectively. is there.

  In the following description, the term “open” means the stop that the slider reaches at the end of its movement separating the aligning teeth of the tape, while the term “detent” refers to the aligning teeth of the tape. It means a stop that the slider reaches at the end of its meshing movement. Opening stoppers and closing stoppers are also known in the art as “bottom stop” and “top stop”, respectively.

  It is known in the art that a slide fastener is composed of a pair of fiber material tapes both separated by two opposing long sides and two opposing short sides, and a slider. A set of teeth aligned on at least a portion of one of the sides, the set of aligned teeth facing each other and with opposing detents and detents, and the sliders for meshing or separating, respectively It is slidable between a closing stopper and an opening stopper.

  In any equipment, such as diving or sailing suits, it is known that the slide fastener needs to be fluid sealed between the inside and outside of the slide fastener to prevent the passage of liquid, especially water. Yes.

  For this purpose, in the manufacturing process of slide fasteners, the fiber material of the tape is coated with a fluid barrier material before each set of teeth to be aligned is mounted on the tape. In particular, according to this manufacturing process, the coating with the fluid barrier material takes place on at least the opposing faces of the strips in very long strips of fibrous material coming from the fiber material spool. The strips so coated are then equipped with multiple sets of teeth aligned along their longitudinal sides in a manner that is itself conventional (eg, by die casting or injection molding) and continuous Cut across the set (ie, in their width direction) to obtain the desired length of tape, each of them with the set of teeth aligned. Next, slide fasteners are obtained from such a pair of tapes, respectively, by successive further conventional steps in which each tape pair is equipped with an opening and closing stop and a slider running between such stops. However, the cutting process leaves the fiber material of each tape uncoated on at least one of their short sides.

  It should be noted that slide fasteners are usually connected to the suit / clothing material in a fluid-tight manner on the long side of the tape without the teeth being aligned, and often on one of those short sides. Furthermore, when the long side of such a tape is connected together by the interlocking of two sets of aligned teeth, a fluid tight seal is obtained at the long side of the tape with the aligned set of teeth.

  Thus, after attaching the slide fastener to the garment or suit, each tape of textile material may remain uncoated on at least one of their short sides. As a result, fluids, particularly water, may permeate the fabric material strip of the tape, and over time, even undesired expansion of the tape itself or separation of the coating of fluid barrier material from the fabric material strip (delamination). And eventually the fluid sealing properties required for the slide fastener. This problem may occur as a result of applying fluid (eg, water) to the slide fastener both during normal use of the garment to which it is attached and during the (violent) washing cycle of the garment. .

  In order to prevent fluid from penetrating into the fabric material strip of the slide fastener tape, the prior art folds the uncoated short side of the tape at an angle of 180 °, usually by thermal or chemical welding. This suggests that the formed portion is bonded to one of the coated surfaces of each tape.

  Although advantageous from various perspectives, the shortcomings of fluid-tight slide fasteners of the type described above are generally recognized, the first of which is the step of manufacturing the slide fastener such as folding and tape end welding. Associated with the fact that it becomes complicated due to the process.

  Another drawback of fluid-tight slide fasteners configured generally as described above is that the folded part thickens the tape at the folded short side, so the slide / fastener must be applied. It will be difficult to attach the tape to the material.

  Furthermore, in any application, such as a diving suit for deep sea use, the above process cannot be applied because the tapes are so thick and stiff that they cannot be folded properly.

  The technical problem underlying the present invention is to devise and provide a fluid-tight slide fastener of the type considered, in order to solve the drawbacks cited in the prior art, which The requirements are long-term reliable, and at the same time, they are more easily and cheaply manufactured.

  According to the present invention, this problem consists of a pair of tapes both separated by two opposing long sides and two opposing short sides, and a slider, each tape having at least their opposing surfaces, Consisting of strips of fibrous material coated with a layer of fluid barrier material, the strips remaining uncoated with at least one short side of each tape, each tape having at least one of its long sides A set of teeth that are partly aligned, the sets of teeth that are aligned with each other, with opposing detents and detents, the sliders each engaging or aligning teeth in a fluid-tight manner In order to separate, it is solved by a fluid-tight slide fastener that is slidable between a detent and a detent, which further comprises a small number of uncoated short sides. While in Kutomo, in fluid-tight state, to coat the strip of fiber material, at least one short side uncoated, characterized in that it comprises a coating formed on each tape.

  According to an embodiment of the present invention, the coating of each tape is a fluid barrier obtained by welding or sealing together a layer of fluid sealing material on the opposite side of each tape on at least one of the uncoated short sides. A seal of the material and optionally a filler added to the fluid barrier material.

  The slide fastener exhibits good fluid sealing requirements over time, while at the same time allowing the welding or sealing process to be easily performed and incorporated into the conventional manufacturing process of fluid-tight slide fasteners. It is surprising that it can be obtained by a simple method and at a low cost. In particular, as will be clearly described later, the sealing or welding process can be performed in conjunction with a cutting process of strips coated with a fluid barrier material to obtain a tape. According to another embodiment of the invention, the coating is at least one uncoated to cover a strip of fibrous material in a fluid tight state at least on one uncoated short side. A short side, at least a cap applied to each tape.

  This method achieves the further advantage of strengthening the slide fastener, particularly at its short side where the cap is applied, so as to make the slide fastener more resistant to withstand use.

Furthermore, the present invention relates to a method of manufacturing a slide fastener as described above. According to a preferred embodiment of the invention, the method comprises:
Providing a plurality of strips of fibrous material, at least their opposing faces coated with a layer of fluid barrier material;
-Each covering strip is equipped with multiple sets of teeth to be aligned along their longitudinal sides;
-Thermally cutting each coated strip laterally between successive sets of aligned teeth to obtain a plurality of tapes of the desired dimensions, each tape comprising a set of aligned teeth, the fiber material being thin Sealed in a fluid tight state at the cut short side of the tape by a portion of the fluid barrier material layer on the opposite side of the piece,
Connecting a plurality of tapes in pairs, each pair of tapes being equipped with a closure, an opening, and a slider slidable between the closure and the opening;

  In this embodiment, the thermal cutting process can be advantageously performed by a heating blade or laser cutting. In particular, the strip is pressed by the blade at its cutting area, and at the same time, heat melts and seals a portion of its fluid barrier material on the opposing surface of the strip at the cut edge of the resulting tape. The fiber material is coated in a fluid-tight state at the cutting edge.

According to another preferred embodiment of the invention, the method comprises:
Providing a plurality of strips of fibrous material, at least their opposing faces coated with a layer of fluid barrier material;
-Equip each covering strip with multiple sets of teeth aligned along their longitudinal sides;
Cut each coated strip laterally between successive sets of teeth to be aligned to obtain a plurality of tapes of the desired dimensions, each tape comprising a set of teeth to be aligned, at least one of them On the short side, it is not covered by a fluid barrier material,
-A plurality of tapes are connected in pairs, and each pair of tapes is equipped with a closure, an opening, and a slider that can slide between the closure and the opening,
The method further provides a coating on each tape on at least one of the uncoated short sides to cover a strip of fibrous material in a fluid tight state on at least one of the uncoated short sides. Process.

  Preferably, the coating process hot presses each tape with at least one uncoated short side, allowing a portion of the fluid barrier material to be welded and sealed with the short side on their opposing surfaces. Can advantageously be carried out, whereby the fiber material is coated in a fluid-tight manner on the short side.

  As yet another alternative, the coating process includes at least one coating with an additional fluid barrier material plugging the uncoated side to form a seal that covers the fibrous material in a fluid tight state with a short side. It can be advantageously done by hot pressing each tape with a short side that is not done, the seal consisting of an additional fluid barrier material and a part of the fluid barrier material on the opposite side of each tape.

  As a further alternative, the coating process may be performed on each tape with at least one uncoated short side and at least one uncoated short side to cover the fiber material strip in a fluid-tight state. This can be done advantageously by applying at least the cap in a fluid tight state.

  Further, the present invention comprises a pair of tapes both separated by two opposing long sides and two opposing short sides, and a slider, and each tape has a fluid barrier material layer at least on its opposing surface. Each tape comprises a set of teeth aligned with at least a portion of one of their long sides, the aligned set of teeth facing each other and facing The slider is associated with a fluid-tight slide fastener that is slidable between a closure and a detent to separate teeth that mesh or align in a fluid-tight state, each slider being aligned. An outer plate and an inner plate that together enclose a set of teeth to be engaged, and a central portion of the wedge-shaped cross section located between the outer plate and the inner plate And each half of the detent has a substantially half wedge-shaped recess so that when the slider stops in its closing stroke, both of the detent halves are A housing having a length at least matching the length of the central portion of the slider is formed.

  The present invention further relates to a detent (26) for a fluid-tight slide fastener, as described above. The closure is characterized by two opposing halves applied to each tape, each half having a substantially half wedge-shaped recess, whereby the slider When stopped by the closing stroke, the halves together form a housing that has a length that at least matches the length of the wedge-shaped central portion of the slider.

  Further characteristics and advantages of the fluid-tight slide fastener according to the invention will become more apparent from the following description of preferred embodiments, given by way of illustration and not limitation, with reference to the accompanying drawings.

1 shows a perspective view of a fluid tight slide fastener according to an embodiment of the present invention. FIG. The enlarged perspective view of the detail of the slide fastener of FIG. 1 is shown. FIG. 4 shows a perspective view of a fluid tight slide fastener according to another embodiment of the present invention. FIG. 4 shows an enlarged perspective view of details of the fastener of FIG. 3. Fig. 4 shows a side view of the fastener of Fig. 3. FIG. 6 shows a partially enlarged sectional view of the fastener of FIG. 5 taken out by the plane VI-VI of FIG. 5 itself. FIG. 4 shows a partially enlarged perspective view of the fastener of FIG. 3 when the slider reaches the fastener closure. FIG. 6 shows a partially enlarged cross-sectional view of the fastener of FIG. 5 taken out by the plane VI-VI of FIG. 5 itself when the slider reaches the fastener closure. FIG. 4 shows a bottom view of a fluid tight slide fastener according to a further embodiment of the present invention. The top view of the fastener of FIG. 9 is shown.

  In accordance with the present invention, with reference to FIGS. 1 and 2, a slide fastener is shown, generally designated 10.

  The slide fastener 10 is composed of a pair of tapes 12 that are substantially parallel to each other. The tape 12 is delimited by internal and external long sides 13a, and the internal long sides 13a face each other. The upper and lower short sides 13b face each other.

  Each tape 12 comprises a set 20 of teeth 21 that align at the center of the long side 13a therein by a conventional method, such as die casting or injection molding process.

  In particular, the set 20 of aligning teeth 21 is opposed to each other with opposing opening 24 and closing 26. The slider 22 is slidable between a detent 24 and a detent 26 to separate each set 20 of teeth 21 (as described in more detail later herein) that mesh or align in a fluid tight manner. It is. In particular, the slider 22 stops at its opening stroke at the stop 24, thereby separating the aligned set of teeth 21, while the slider 22 stops at its closing stroke 26 at the closing stroke and thereby aligns. The set 20 of teeth 21 to be engaged meshes in a fluid-tight state.

1 and 2, the detent 24 is in the form of a single piece applied to both tapes 12 at the lower end of the set 20 of aligned teeth 21, while the detent 26 is in two halves. Each half is applied to each tape 12 at the upper end of each set 20 of teeth 21 to be aligned.
Application of the detent 24 and detent 26 to the tape 12 can be done by die casting or injection molding, for example, in a conventional manner per se.

  Further, the tape 12 is fluidly connected from a set 20 of aligned teeth 21 along a long side of each interior at a portion 25 that includes a stop 24. In particular, referring to FIGS. 1 and 4, on the outside of the slide fastener 10 (the outside is used on the side exposed to the fluid), the portion 25 extends from the lower end of the set 20 of aligning teeth 21 from the bottom of the tape. It extends to the side 13b.

  As shown in FIG. 2, each tape 12 consists of a strip of fibrous material 14 coated with a fluid barrier material. According to the present invention, the coating of strips 14 consists of a plurality of sets 20 of teeth 21 that completely cover the strips of fiber material making up tape 12 with a fluid barrier material and align with one of its longitudinal sides. Followed by thermal cutting across the coated strip forming the tape 12. As a result, in each tape 12, the strip 14 is covered with two opposite surfaces by the respective fluid barrier layers 16 and 18 at the long side 13a, and at least one of the short sides 13b (ie, formed by cutting). At the short side) is covered with a seal 40 by sealing or welding the fluid barrier layers 16,18. In particular, as shown in FIG. 2, the fluid barrier layers 16, 18 provide a substantially dense fusion at the short side 13 b of the tape 12, thereby fluidly sealing the strip 14 at the short side 13 b. Form a dense seal 40 of fluid barrier material covering the fiber material. This result can be obtained, for example, by thermally cutting the coated strip making up the tape 12 with a heating blade or by cutting the strip making up the tape 12 in a conventional manner (ie, without heating). Can be obtained by hot pressing the uncoated short side of the tape 12 after making 12.

In this way, during use of the slide fastener 10, fluids, in particular water, are advantageously prevented from penetrating through the short side 13 b of the tape 12 and into the fiber material strip 14.
In a slide fastener, the fiber material strip 14 may be any woven or non-woven fabric of natural or synthetic fibers (eg, polyester).
The fluid barrier material making up the coating on strip 14 may be any material suitable for providing a fluid tight seal to strip 14. Non-limiting examples of such fluid barrier materials include polyurethane.

In the slide fastener 10, each tape 12 is connected in fluid-tight manner to the material of a suit / clothing (not shown) at the outer long side 13a and the lower short side 13b thereof.
This connection is usually made in a conventional manner, for example by seaming the tape to the corresponding inner fiber layers of the garment and between them and between the tape and the outer fluid barrier layer. Can be done by heat welding the tape to the outside of the fluid barrier layer outside the garment, outside of them.

With reference to FIGS. 3 to 8, a second embodiment of the fluid-tight slide fastener of the present invention (denoted as a whole by 110) will be described below.
In the slide fastener 110, structurally and / or functionally equivalent elements to those of the slide fastener 10 are denoted by the same reference numerals, and the description thereof will not be repeated.

  The slide fastener 110 is derived from an original strip, each tape 12 forming a tape 12 having an upper short side 13b that is not coated with a fluid barrier material of the fluid barrier layers 16, 18, and is structurally and functionally Two identical caps 28 are applied in a fluid tight manner to each tape 12 at their upper short side 13b, that is, the short side 13b is adjacent to the mutual closure 26 and the upper short side of the tape 12 is short. This is substantially different from the slide fastener 10 described above in that the fiber material strip 14 corresponding to the side 13b is completely covered.

  More specifically, the cap 28 covers the upper short side 13b, the two terminal portions 30a and 30 covering the respective terminal portions of the two fluid barrier layers 16 and 18 in a fluid-tight state, and the upper short side 13b. A central portion 13c.

Thus, during use of the slide fastener 10, fluids, particularly water, are advantageously prevented from penetrating through the upper short side 13 b of the tape 14 and into the fiber material strip 14.
Preferably, each cap 28 is made of a fluid barrier plastic material, in particular it is the same material that forms the fluid barrier layers 16, 18 on the opposite side of the tape 14. Alternatively, each cap 28 is a fluid barrier plastic material that is compatible with the material forming the fluid barrier layers 16, 18, i.e., without any additional adhesive layer or binder, by chemical bonding thereof. Made of material suitable for welding directly to the layer.
The application of the cap 28 to the short side 13b of the tape 14 can be performed by a conventional method (for example, a plastic material injection process or an adhesive).

  Further, as shown in FIGS. 3 to 8, the caps 28 are applied to the tape 14 at their upper short sides 13 b, but they are at the lower short side 13 b or the upper and lower short sides 13 a, It should be noted that the same applies. In particular, the latter option is the choice of so-called open-end fasteners, i.e. clothes or suits only on the long side 13a outside the tape 12 in order to cover both the upper and lower short sides 13b in a fluid-tight state. It can be put to practical use by connecting slide fasteners.

With reference to FIGS. 9 and 10, a third embodiment of the fluid tight slide fastener of the present invention (generally designated 210) is described below. In the slide fastener 210, structurally and / or functionally, elements equivalent to those of the slide fastener 10 and the slide fastener 110 are denoted by the same reference numerals, and the description thereof will not be repeated.
Like the slide fastener 110 described above, the slide fastener 210 has two tapes 12 having upper short sides 13b that are not covered by the fluid barrier material of the fluid barrier layers 16,18.

  Furthermore, the slide fasteners 210 have two structurally and functionally identical caps 128 applied in a fluid tight manner to each tape 12 at their upper short side 13b, that is, the short side 13b Adjacent to the reciprocal closure 26 and completely covering the strip 14 of fibrous material corresponding to the upper short side 13b of the tape 14.

  In particular, in this embodiment, the two caps 128 are integrally formed with each half of the detent 126 and are connected to the tape 12 by conventional methods such as die casting or injection molding. . More specifically, each cap 128 consists of an outer plate 136 and an inner plate 138 that cover the corresponding terminations of the two fluid barrier layers 16, 18 of each tape 12 at its upper short side 13b. In order to facilitate the connection of the cap 128 to the outer fluid barrier layer 16, at the upper short side 13 b, the two fiber material strips 14 of each tape 12 are provided with slits 140 in the outer plate 136. Yes. In the illustrated example, the outer plate 136 is wider than the inner plate 138 to make positioning of the cap 128 easier in the manufacturing process of the slide fastener 210.

  Further, each cap 128 covers a terminal portion 142 of the internal long side 13 a of each tape 12 that is connected to the mutual closure 126. Preferably, in order to make the slide fastener 210 more ergonomic, the end portion 142 of the internal long side 13a has a round shape.

  Other aspects of the invention that are common to all embodiments of the present invention are described below, with reference to the slide fastener 110 illustrated in FIGS. 3-8 for brevity.

  In accordance with this aspect of the invention, the slider 22 of the slide fastener 110 includes an outer plate 23b (with a puller (not shown)), an inner plate 23c, and an outer plate 23b that together surround the set of teeth 20 to be aligned. And a central portion 23a having a substantially wedge-shaped cross section. Further, when the slider 22 stops at its closing stroke, the half portions of the closing stopper 26 together form a housing 27a having a dimension that at least matches the length of the central portion 23a of the slider 22.

  As a result, when the slider 22 closes (see FIG. 6), the two sets of aligning teeth 20 slide against the two opposite sides of the wedge until the two sets of aligning teeth 20 engage at the apex of the wedge. 22 to guide. At the same time, the tape 14 is usually split in two at the downstream part of the slider 22 (ie in the direction of the detent 26), so that a hold 32 is usually formed upstream of the slider 22 (ie the teeth 21 are already engaged). ing).

  When the slider 22 starts its closing stroke (see FIG. 8), half of the stopper 26 is guided by the outer plate 23b and the inner plate 23c and closes to each other, so that the housing 27a is gradually formed, When stopping at the closing stroke, the wedge-shaped central portion 23a of the slider 22 will be received.

  As a result, as shown in FIGS. 7 and 8, when the slider 22 reaches the clasp 26, the two tapes 12 become flat (that is, the hold 32 formed by each tape 12), while the slider 22 is When the detent 26 is reached, the slider 22 moves with its stroke (FIGS. 3 and 6) and disappears.

  This is advantageous because it allows accurate, convenient and effective coupling of the two tapes 12 of the slide fastener 110 to the suit / garment material in a fluid tight manner. On the other hand, in prior art slide fasteners, the tape hold is still present even when the slider reaches its closure, ensuring that the suit / clothing material provides a tape connection. It is very difficult to achieve.

  In addition, when the slider 22 faces its closing stroke, the free end of the long side 13a inside the tape 12 (ie, the interior above the detent 26 where the tape is not connected either directly or through the assembly slider 22 / teeth 21). The long side portions of the slide fastener 110 are in close contact with each other, and therefore the fluid sealing condition of the slide fastener 110 is maintained at the free portion of the long side 13 inside.

  From the above description, it can be clearly recognized that the fluid-tight slide fastener of the present invention solves the technical problem and achieves many advantages, firstly, the tape is completely coated with the fluid barrier material. Therefore, it is based on the fact that it shows good fluid sealing conditions over a long period of time.

  The slide fastener of the present invention has another advantage in that it can be manufactured in a simple manner and at a low cost. In this regard, in all known manufacturing processes for slide fasteners, the operation of thermal cutting of the strips to form the tape or, alternatively, the operation of hot pressing the uncoated side of the tape already formed, It should be noted that it can be easily integrated. Furthermore, such an operation can be performed more easily than folding an uncoated tape as in the prior art.

  A further advantage of the slide fastener of the present invention is that it has a unique construction of the slider and a detent that is not allowed to form a fold on the tape, such tapes are always flat with respect to each other, and the slider has its closing stroke. The free parts of the long sides inside them are in close contact with each other. As a result, the slide fastener can be coupled to the suit / garment in a simpler and more reliable manner, and the fluid tightness condition of the slide fastener is maintained in the free part of the long side inside the tape.

A further advantage of the slide fastener of the present invention is that the portion of the tape necessary to obtain a slide fastener of a predetermined length can be reduced as compared with the conventional example.
Of course, those skilled in the art will recognize the fluid-tight slides described above to meet certain incidental requirements, all of which are covered by the scope of protection of the present invention, as defined by the following claims. Numerous modifications and variations can be made to the fastener.

Claims (23)

It consists of a pair of tapes (12) both separated by two opposing long sides (13a) and two opposing short sides (13b), and a slider (22),
Each tape (12) consists of a strip (14) of fibrous material, at least on its opposite surface, coated with a fluid barrier material layer (16, 18), which strip (14) 12) at least one short side (13b) of each of the long sides (13b) remains uncoated and each tape (12) has a set of teeth (20) aligned with at least a part of one of their long sides (13a). A set (20) of teeth (21) comprising and aligning, facing each other and with opposing opening and closing stops (24, 26);
The sliders (22) are each fluid-tight slide fasteners (10, 110, slidable) between a detent (26) and a detent (24) to separate teeth that mesh or align in a fluid-tight state. 210),
Furthermore, the fastener has at least one of the uncoated short sides (13b) to cover the fiber material strip (14) in a fluid-tight state at least one of the uncoated short sides (13b). A fluid-tight slide fastener comprising a coating formed on each tape (12).   The coating of each tape (12) is welded or sealed together with a layer of fluid sealing material (16, 18) on the opposite side of each tape (12) with at least one uncoated short side (13b). A fluid-tight slide fastener according to claim 1, characterized in that it is a seal (40) of fluid barrier material obtained by means of and a filler optionally added to the fluid barrier material.   The coatings are each at least one uncoated short side (13b) to cover the fiber material strip (14) in a fluid-tight state with at least one uncoated short side (13b). 2. A fluid tight slide fastener according to claim 1, characterized in that it is a cap (28, 128) applied to the tape (12).   Fluid-tight slide fastener according to any one of the preceding claims, characterized in that the uncoated short side (13b) is adjacent to the detent (26) of each tape (12).   Each cap (28) has an uncoated short side (13b), two terminal portions (30a, 30b) covering a part of the two fluid barrier layers (16, 18), and uncoated The fluid-tight slide fastener according to claim 3 or 4, comprising a central portion (30c) covering the short side (13b).   The detent (24) is a single piece applied to both tapes (12) at the end of the set (20) of aligned teeth (21), while the detent (26) is two halves. Fluid according to any one of the preceding claims, characterized in that one half is provided on each tape at the opposite end of each set (20) of aligning teeth (21) Sealed slide fastener.   A fluid-tight slide fastener according to any one of claims 3 to 6, wherein each cap (28) is integral with each half of the detent (26).   Each cap (28) includes an outer plate (136) and an inner plate (138), which have two uncoated short sides (13b) with two fluid barrier layers (16, 18) of each tape (12). And a terminal end corresponding to the fiber material strip (14) of each tape (12) with an uncoated short side (13b).   The fluid tight slide fastener of claim 8, wherein each cap (28) comprises a slit (140) in the outer plate (136).   The fluid-tight slide fastener of claim 8 or 9, wherein the outer plate (136) is wider than the inner plate (138).   11. A fluid-tight slide fastener according to any one of claims 7 to 10, characterized in that each cap covers the end of the long side (13a) of each tape (12) that is coupled to each detent (26).   12. A fluid-tight slide fastener according to claim 11, wherein the end of the long side (13a) has a round shape.   Each cap (28, 128) is composed of a fluid barrier plastic material, preferably the same plastic material or fluid barrier layer (16, 16) that forms the fluid barrier layer on the opposite side of the strip of fiber material (14). A fluid-tight slide fastener according to any one of claims 3 to 12, comprising a fluid barrier plastic material that is compatible with the material forming 18).   14. A fluid tight slide fastener according to claim 13, wherein each cap (28, 128) is applied to each tape (12) in a fluid tight state by injection molding or adhesive of a fluid barrier plastic material.   The slider (22) is positioned between the outer plate (23b) and the inner plate (23c) that together surround the set (20) of teeth (21) to be aligned, and between the outer plate (23b) and the inner plate (23c). And a central portion (23a) having a substantially wedge-shaped cross section, and each half of the detent has a substantially half wedge-shaped recess (27), Thus, when the slider (22) stops at its closing stroke, both of the half portions of the stopper (26) have a length that matches at least the length of the central portion (23a) of the slider (22) ( 27. A fluid-tight slide fastener according to any one of the preceding claims forming 27a). It consists of a pair of tapes (12) both separated by two opposing long sides (13a) and two opposing short sides (13b), and a slider (22),
Each tape (12) consists of a strip of fiber material (14) coated with a fluid barrier material layer (16, 18) on at least their opposing faces, each tape (12) having their long sides A set (20) of teeth (21) aligned with at least a part of one of the (13b), the set (20) of aligned teeth (21) facing each other and facing open and close (24, 26),
Each of the sliders (22) is a fluid-tight slide fastener (10) that is slidable between a detent (26) and a detent (24) to separate teeth (21) that mesh or align in a fluid-tight state. 110, 210),
The slider (22) is located between the outer plate (23b) and the inner side plate (23c), and the outer plate (23b) and the inner plate (23c) that surround the set (20) of teeth (21) to be aligned. And has a substantially wedge-shaped central portion (23a) and half of the detent (26) each has a substantially half wedge-shaped recess (27), thereby When the slider (22) stops at its closing stroke, the housing (27a) has a length in which both half portions of the closing stop (26) at least match the length of the central portion (23a) of the slider (22). And a fluid-tight slide fastener. A closure (26) for the fluid tight slide fastener of claim 16, comprising:
Each tape (12) consists of two opposite halves applied to each, each half having a substantially half wedge-shaped recess (27), whereby the slider (22) Closure characterized in that when stopped by the closing stroke, both halves together form a housing (27a) having a length that at least matches the length of the wedge-shaped central portion (23a) of the slider (22). Stop. Providing a plurality (14) of fibrous material strips (14) coated at least on their opposite sides with a fluid barrier material layer (16, 18);
Each covering strip is equipped with multiple sets (20) of teeth (21) aligned along their longitudinal sides,
Each coated strip (14) is thermally cut transversely between successive sets (20) of aligned teeth (21) to obtain a plurality of tapes (12) of the desired dimensions, each tape (12) Comprises a set (20) of aligning teeth (21), the fibrous material being cut at the short side of the tape (12) by a part of the fluid barrier material layer (16, 18) on the opposite face of the strip. , Sealed in a fluid tight state,
A plurality of tapes (12) are coupled in pairs, and each pair of tapes (12) can be slid between a detent (26), a detent (24), and a detent (26) and detent (24). A method for manufacturing a fluid-tight slide fastener including a step of mounting a simple slider (22).   The method of claim 18, wherein the thermal cutting step is performed by a heating blade or laser cutting. Providing a plurality (14) of fibrous material strips (14) coated at least on their opposite sides with a fluid barrier material layer (16, 18);
Each covering strip (14) is equipped with a plurality of sets (20) of teeth (21) aligned along their longitudinal sides,
Each coated strip (14) is cut transversely between successive sets (20) of aligned teeth (21) to obtain a plurality of tapes (14) of the desired dimensions, each tape (14) Comprising a set (20) of teeth (21) to be aligned, at least one of their short sides not covered by a fluid barrier material;
A plurality of tapes (12) are coupled in pairs, and each pair of tapes (12) can be slid between a detent (26), a detent (24), and a detent (26) and detent (24). Equipped with a special slider (22)
At least one of the uncoated short sides (13b), on each tape (12), at least one of the uncoated short sides, in order to cover the strip of fiber material (14) in a fluid-tight state. A method of manufacturing a fluid-tight slide fastener comprising the step of providing a coating.   The coating process is performed by hot pressing each tape (12) on at least one of the uncoated short sides (13b) to weld and seal a portion of the fluid barrier material on their opposing surfaces, thereby 21. The method of claim 20, wherein the fibrous material is coated in a fluid tight state on the short side. In order to form a seal (40) that coats the fiber material in a fluid tight state with a short side in the coating process, at least one uncoated while blocking the uncoated side with an additional fluid barrier material Performed by hot pressing each tape (12) with the short side (13b),
21. The method of claim 20, wherein the seal (40) comprises an additional fluid barrier material and a portion of the fluid barrier material on the opposing surface of each tape (12).   21. The method of claim 20, wherein the coating step is performed by applying at least a cap (28, 128) in a fluid-tight manner on each tape (12) with at least one uncoated short side (13b).

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