JP2004129985A - Snap fastener with tape - Google Patents

Abstract

[Object] To provide a snap fastener with a tape in which male and female members are the same.
The present invention comprises a tape (3) in which a plurality of hermaphroditic synthetic resin engaging members (2) are formed and fixed on a cloth tape at predetermined intervals. The engagement side surface of the engagement member (2) has a base (4), an engagement protrusion (6), and an engagement protrusion receiving portion (7). Each of the engagement protrusion (6) and the engagement protrusion receiving portion (7) has a small protrusion (6g, 4b) and a recess (6h, 4c). When the engaging members (2) are engaged with each other, the small projections (6g, 4b) and the depressions (6h, 4c) are fitted.
[Selection] Fig. 2

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a snap fastener with a tape.
[0002]
[Prior art]
The applicant has developed and applied for the following snap fastener with tape.
(1) JP-A-10-33210 (2) JP-A-10-33211 (3) JP-A-2000-270906
(4) JP-A-2001-8711
(5) JP-A-2001-78807
(6) JP-A-2001-64515
(7) JP-A-2001-149117
(8) JP-A-2002-318
(9) JP-A-2002-125719
(10) JP-A-2002-125720
(11) JP-A-2002-238620
[0003]
The snap fasteners of the prior arts (1) to (10) combine a male tape having a male member and a female tape having a female member. Since both parts are always required, molds must be manufactured for each male and female member, and two types of tapes must be manufactured based on them, and they must be sorted, stored, boxed, delivered, and used without mistake. Was.
[0004]
In order to solve this problem, the applicant of the present application has proposed a snap fastener which does not require two types of male and female tapes and requires only a female member.
[0005]
[Problems to be solved by the invention]
Although the above-mentioned Japanese Patent Application Laid-Open No. 2002-238620 certainly uses one type of tape, it requires a separate connecting member for connecting the two. Although this connecting member is a simple part, it still requires special considerations in terms of mold making, classification, storage, packing, delivery, use, and the like.
[0006]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a snap fastener with a tape which is a kind of tape because the male and female engaging members are the same tape, and does not require a connecting member for connection.
[0007]
[Means for Solving the Problems]
A fastener with a tape according to the present invention comprises a tape in which hermaphroditic synthetic resin engaging members are formed and fixed on a cloth tape at predetermined intervals, and the engaging side surface of the engaging member is in contact with a base and at least one engaging member. A projection, having at least one engagement projection receiving portion, each of the engagement projection and the engagement projection receiving portion having a small projection and a recess, when the engagement members are engaged with each other, The small projections and the depressions are fitted.
[0008]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
It is preferable in terms of design that the engaging protrusion and the engaging protrusion receiving portion are provided at a central portion surrounded by a base. It is preferable to provide a material tape exposed portion on the bottom surface of the engagement protrusion receiving portion in order to maintain strength in molding.
[0009]
The small projections and depressions of the engagement projections may be formed on, for example, the outer side wall of the projection.
[0010]
The small projections and depressions of the engagement projection receiving portion may be formed, for example, on the inner side wall of the base.
[0011]
Preferably, an inclined portion is provided adjacent to the small projection of the base.
[0012]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0013]
<First embodiment>
FIG. 1 is a plan view of a snap fastener 1 with a tape in which male and female members are the same according to a first embodiment of the present invention. At predetermined intervals, the tapes 3 provided with a plurality of engagement members 2 of the same sex are engaged with each other. In use, two tapes 3 are used in pairs, but in the present invention, only one tape 3 is shown in FIG.
[0014]
FIG. 2 is an enlarged perspective view of the hermaphroditic engagement member 2. FIG. 3 is a plan view (a), a side view (b), and a cross-sectional view (c) of the same member.
[0015]
The front side, which is the engaging surface of the engaging member, includes a base 4 formed of a square frame and a central portion 5 in the frame. The central portion 5 further includes an engaging protrusion 6 and an engaging protrusion receiving portion 7. Become. In the engagement protrusion receiving portion 7, the fabric tape 3 is pressed lower than the other portions of the fabric according to the shape of the mold (see FIG. 3C), and the fabric tape is exposed. However, it is not essential for the present invention that the cloth tape 3 is set lower than the other parts of the cloth in the engagement protrusion receiving portion 7.
[0016]
As shown in FIG. 3 (c), on the side wall of the base 4 on the side of the engagement projection receiving section 7, an inclined section 4a, a small projection section 4b, and a concave section 4c are formed.
[0017]
As shown in FIG. 3A, the engaging projection 6 occupies approximately half of the center. The engaging projection 6 includes a vertical main portion 6c and extension portions 6a and 6b located above and below the main portion 6c and extending in the horizontal direction, and has a "U" -shaped top portion 6d when viewed from above. As shown in FIG. 3 (c), a slope 6e and a vertical portion 6f are provided adjacent to each other on the side wall on the engagement protrusion receiving portion 7 side of the engagement protrusion 6. Of the engagement protrusion 6, a small protrusion 6g and a recess 6h are provided on the protrusion side wall on the base 4 side adjacent to the main portion 6c. Among the engaging protrusions 6, a slope 6j and a vertical portion 6k are provided on a protrusion side wall of the base 4 adjacent to the vertically extending portions 6a and 6b (see FIG. 3B).
[0018]
The back side, which is the non-engagement surface of the engaging member, comprises a back base 8 formed of a square frame and a central portion 9 in the frame, and the central portion 9 has a fabric tape exposed.
[0019]
In order to form the engaging member 2, a cloth tape 3 having a roughness through which molten resin passes and penetrates by molding pressure is provided between an upper and lower mold (not shown) having a fastener molding space. The fabric tapes 3 of the parts 5 and 9 are sandwiched and fixed between the upper and lower dies, and then the synthetic resin is injected into the molding space. The small indentation 10 in FIG. 3C corresponds to the injection port of the mold. Because of this injection port setting, the frame width of the back base 8 is slightly wider than the frame width of the front base 4.
[0020]
In this way, the front side and the back side of the engaging member 2 formed on both sides of the fabric tape are integrated by the synthetic resin penetrating the fabric tape 3.
[0021]
The tape cloth 3 needs to be a cloth through which a molten resin passes without being melted, and may be a woven cloth or a knitted cloth. For example, a cotton cloth, a blended cloth, or the like can be used. As the synthetic resin, a thermoplastic resin, for example, a polyacetal molten resin can be used.
[0022]
FIG. 4 shows a state in which the hermaphroditic engagement portions are combined. The engagement between the projection 6g of the engagement projection 6 of the upper engagement portion and the recess 4c of the base 4 of the lower engagement portion in FIG. It can be seen that the small projection 6g of the engagement projection 6 of the side engagement portion is engaged. Thereby, the two engagement portions can be reliably engaged with each other.
[0023]
To release the engagement, a twist may be applied to each member with a finger, or the cloth may be grasped and strongly peeled off.
[0024]
<Second embodiment>
In the second embodiment, as in the first embodiment, the tapes 21 provided with a plurality of engagement members 20 of the same sex are engaged with each other at predetermined intervals. FIG. 5 is an enlarged perspective view of a hermaphroditic engagement member 20 according to the second embodiment. 6A is a plan view of the same member, FIG. 6B is a bb sectional view, FIG. 6C is a cc sectional view, and FIG. 6D is a rear view. FIG. 7 is a cross-sectional view showing the engagement state of the engagement members of the hermaphrodite.
[0025]
As shown in FIG. 6 (a), the front side of the engagement member 20, which is the engagement surface, includes ring-shaped bases 23 and 24 and a central portion 22 in the base. The base is composed of two high bases 23 and two low bases 24, and the central part 22 is composed of two engagement projections 25 and two engagement projection receiving parts 26.
[0026]
As shown in FIG. 6A, the high base 23 and the low base 24 are divided into four equal parts of the ring-shaped frame, and are alternately set two by two. The height on the fabric is about twice as high for the high base 23 as for the low base 24. As shown in FIG. 6C, an inclined portion 23a, a small protrusion 23b, and a recess 23c are formed on the base side wall of the high base 23 on the side of the engagement protrusion receiving portion 26, respectively.
[0027]
In the central portion 22, the fabric tape 21 is pressed lower than other portions of the fabric according to the shape of the mold (see FIGS. 6B and 6C), and the fabric tape 21 is exposed. However, it is not indispensable for the present invention that the cloth tape 21 is set lower in the central part 22 than the other parts of the cloth.
[0028]
The two engaging projections 25 are fan-shaped when viewed from a plane, and are located inside the two low bases 24, respectively. As shown in FIG. 7, the height of the engagement protrusion 25 is a height obtained by combining the heights of the high base 23 and the low base 24.
[0029]
The two engagement protrusion receiving portions 26 are spaces adjacent to the two engagement protrusions 25 in the circumferential direction. The cloth tape 21 is completely exposed at the center of the engagement protrusion receiving portion 26 and the center portion 22.
[0030]
The back side, which is the non-engagement surface of this engagement member, comprises a base 27 formed of a ring-shaped frame and a central portion 28 in the frame, and the central portion has a fabric tape exposed.
[0031]
The method of manufacturing the hermaphroditic engagement portion of the second embodiment is similar to that of the first embodiment. The small recess 29 with the reference numeral in FIG. 6D corresponds to the injection port of the mold.
[0032]
FIG. 7 shows a state in which the hermaphroditic engagement portions are combined. 7 that the projection 25a of the engagement projection 25 of the upper engagement portion and the depression 23c of the high base 23 of the lower engagement portion are engaged. It can be seen that the small projection 25a of the engagement projection 25 of the lower engagement portion is engaged. Thereby, the two engaging portions can be reliably engaged with each other.
[0033]
To release the engagement, a twist may be applied to each member with a finger, or the cloth may be grasped and strongly peeled off.
[0034]
In the second embodiment, two high bases 23 and two low bases 24 are provided, but one high base 23 and one low base 24 may be provided. In that case, each will be in charge of half the circumference of the base.
[0035]
【The invention's effect】
According to the present invention, since the male and female engaging members are the same, only one type of tape is required. Also, a connecting member for connecting the two is not required. Since only one kind of member is sufficient, labor saving and cost reduction can be achieved in manufacturing, sorting, storage, packing, delivery, use, and the like.
[Brief description of the drawings]
FIG. 1 is a plan view of a tape in which male and female members are the same according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the same member.
3A is a plan view of the same member, FIG. 3B is a side view, and FIG. 3C is a cross-sectional view.
FIG. 4 is a sectional view showing an engaged state of the member.
FIG. 5 is an enlarged perspective view of a hermaphroditic engagement member according to a second embodiment of the present invention.
6A is a plan view of the same member, FIG. 6B is a cross-sectional view taken along line AA, FIG. 6C is a cross-sectional view taken along line BB, and FIG.
FIG. 7 is a sectional view showing an engaged state of the same member.
[Explanation of symbols]
<First embodiment>
DESCRIPTION OF SYMBOLS 1 Snap fastener 2 Engagement member 3 Fabric tape 4 Base 4a Inclined part 4b Small projection 4c Depression 5 Center 6 Engagement projection 6g Small projection 6h Depression 7 Engagement projection receiving part <Second embodiment>
Reference Signs List 20 engaging member 21 fabric tape 22 central portion 23 high base 23b small protrusion 23c recess 24 low base 25 engagement protrusion 25a small protrusion 25b recess 26 engagement protrusion receiving portion 27 back base

Claims (6)

A tape (3; 21) in which hermaphroditic synthetic resin engaging members (2; 20) are formed and fixed to a cloth tape at predetermined intervals;
The engaging surface of the engaging member (2; 20) includes a base (4; 23, 24), at least one engaging protrusion (6; 25), and at least one engaging protrusion receiving portion ( 7; 26),
Further, each of the engaging projection (6; 25) and the engaging projection receiving section (7; 26) has a small projection (6g, 4b; 25a, 23a) and a concave section (6h, 4c; 25b, 23b). When the engaging members (2, 20) are engaged with each other, the small projections (6g, 4b; 25a, 23a) and the recesses (6h, 4c; 25b, 23b) fit together. With fasteners. The fastener with a tape according to claim 1, wherein the engagement protrusion (6; 25) and the engagement protrusion receiving portion (7; 26) are located at a central portion surrounded by a base (4; 23, 24). The tape according to claim 1 or 2, wherein the small projections (6g; 25a) and the depressions (6h; 25b) of the engagement projections (6; 25) are formed on the side wall of the outward projection (6; 25). With fasteners. The small projection (4b; 23a) and the depression (4c; 23b) of the engagement projection receiving portion (7; 26) are formed on the inner side wall of the base (4, 23). Fastener with tape. The said base consists of a high base (23) and a low base (24), The small protrusion (23a) and the recessed part (23b) of the said engagement protrusion receiving part (26) are provided in the high base (23). 4. The fastener with tape according to 4. The fastener with a tape according to any one of claims 1 to 5, wherein an inclined portion (4a, 23a) is provided adjacent to the small protrusion (4b; 23b) of the base (4; 23).

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