WO2018195896A1

WO2018195896A1 - Ultra-thin plastic zipper

Info

Publication number: WO2018195896A1
Application number: PCT/CN2017/082373
Authority: WO
Inventors: 林俊佑; 戴红初; 吕濠
Original assignee: 深圳市华圣达拉链有限公司
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2018-11-01
Also published as: US20240049841A1

Abstract

An ultra-thin plastic zipper comprises a pair of zipper cloth straps (1), two groups of teeth (2) that are distributed on the inner sides of the zipper cloth straps (1) in the direction of the pair of zipper cloth straps (1), and comprises a slider (5), a pair of upper stops (31,32) and a pair of lower stops (4). Each of the upper surface and the lower surface of the tooth (2) consists of a plane, a gradually-cut surface and a vertical surface, and the tooth (2) is gradually cut from a tooth head portion (24) to a tooth tail portion (25), so that the overall volume of the tooth (2) is remarkably reduced, the thickness and the volume of the central line (11) of the cloth straps are reduced, and the existing appearance of great thickness and clumsiness and poor softness of the plastic zipper are alleviated.

Description

Ultra-thin plastic zipper

Technical field

The invention relates to a zipper, in particular to an ultra-thin plastic steel zipper.

Background technique

In the garment industry, zippers have gained widespread use. A zipper includes a pair of zippered straps and sliders with teeth. The slider slides in the direction of the zipper tape to realize the splicing and splicing function of the zipper. The existing plastic steel zipper on the market, the combination of teeth and cloth belt, is the center line of the zipper tape when the plastic tooth is injected during injection molding to meet the industry-related physical pull standard. However, the cross-section of the prior art zipper teeth is generally rectangular, and the upper and lower surfaces of the teeth are flat, resulting in a thick overall thickness and a relatively large volume of the teeth, which makes the plastic zipper have a thick and awkward look and feel, and the zipper is soft. Poor degree, affecting the versatile use of the matching with the ready-to-wear, can not meet the future trend of the thin and light form of the apparel industry. In the prior art, although there are improved products, the practice has proved that the improvement effect is not obvious. When these designs are applied to the outer side of the clothing, it is impossible to solve the problem that the inner side teeth are easy to scratch and the clothes are scratched during washing. Fiber and bulky problems.

The object of the present invention is to solve the above problems and design an ultra-thin plastic steel zipper which is lighter and thinner than the existing zipper, in order to meet the demand of light and thin clothing in the development trend of the ready-to-wear industry, and to make the plastic steel zipper more soft. Beautiful, lightweight and comfortable, soft and unique, while significantly improving the performance of the existing technology zipper, and saving a lot of raw materials.

Summary of the invention

The invention provides an ultra-thin plastic steel zipper, as shown in Fig. 1 and 2, comprising a pair of zipper tapes (1), and two sets of zipper tapes are respectively distributed along a pair of zipper tapes (1). (1) The inner tooth (2), a pull head (5), a pair of upper end (31, 32) and a lower end (4), the overall zipper is bilaterally symmetrical, and the sliding by the slider (5) The teeth can be interspersed; as shown in Figures 3, 7, 9 and 11, characterized in that the tooth head (24) is smaller than the tooth tail (25) Thick, the tail (25) is thinner than the tooth head (24), and the upper (27) and lower (28) sides of the tooth are progressively cut from the tooth head (24) toward the tooth end (25). shape. “Shaving” means reducing and thinning. The progressive shape structure means that the thickness of the shape is gradually reduced from thick to relatively thin.

As shown in the cross-sectional view of Fig. 5, when the left and right teeth are interspersed, the occlusal portion also has a progressively thicker structure with a thicker intermediate portion and a thinner left and right ends.

As shown in Figures 3, 6, and 9, the upper surface (27) and the lower surface (28) of the tooth (2) are composed of a flat surface (21), a progressive surface (22), and a rear surface of the tooth tail (23). Composition, adjacent faces meet. As shown in Fig. 5, when the left and right sets of the tooth heads are engaged, the upper surface (27) and the lower surface (28) formed by the left and right teeth are combined to form a plane in the middle, and the sides are gradually tapered and The tapered shape structure of the connection of the facade. The tooth head (24) is first provided with a plane (21) in the direction of the tail portion (25), and the end of the plane (21) is followed by a progressive surface (22), and the progressive surface is connected to a vertical surface (23) to reach the cloth belt. Through the progressive cutting design of the tooth (2), the overall volume of the tooth can be significantly reduced, so as to achieve a thin, lightweight, plastic-saving and environmentally friendly and comfortable use target.

The invention provides an ultra-thin plastic steel zipper, wherein the upper surface (27) and the lower surface (28) of the tooth (2) may be symmetrical or asymmetric.

As shown in the cross-sectional schematic views of Figs. 9 and 11, the upper surface (27) and the lower surface (28) of the tooth (2) are symmetrical, and the center line (6) is vertically symmetrical. As shown in the cross-sectional schematic view of Fig. 4, the upper (27) and lower (28) sides of the teeth (2) are asymmetrically shaped.

The tooth provided by the invention has the effect of reducing the volume of the tail portion of the tooth by the design of the progressive face, and the sharp phenomenon of the right end of the tooth end of the prior art tooth is improved, and the zipper tooth is attached to the human skin surface. It is softer and more comfortable, and at the same time, it reduces the phenomenon that the teeth are easy to catch the fibers of the clothes, and breaks through the relatively heavy perception of the conventional plastic steel zipper, giving the plastic zipper a novel feeling of lightness and flexibility.

An ultra-thin plastic steel zipper of the present invention, as shown in FIG. 7, is characterized in that the tooth (2) is provided with a gap (29), and a gap is naturally formed when the tooth (2) is injection molded on the tape (1). (29), the gap (29) is flat, the gap is rectangular from the cross section, the inner end is circular or elliptical, the tape (1) passes through the gap (29), and the tooth is at the gap (29) and the cloth With the (1) combination, there is one or more stabilizing posts (26) in the gap of each tooth, and the shape of the gap is matched with the shape of the tape and tightly combined. This structural design allows the engagement of the teeth (2) with the tape (1) to exceed the bite strength of any prior art product.

As shown in Fig. 23, the overall thickness of the ultrathin tooth of the present invention is about 10% to 20% thinner than that of the prior art tooth, and the overall zipper can save about 10% to 20% of the plastic amount; in the 2016 Chinese zipper market survey According to statistics from the research and development trend forecast report, the domestic zipper usage in China is about 46 billion meters per year. If a single 20cm long zipper can save 10% of plastic consumption, it can be calculated in China for one year. Save 23 million KG of plastic, with the international attention to environmental trends, this invention can do a great job for the global environmental protection.

The invention provides an ultra-thin plastic steel zipper, wherein the shape of the upper surface (27) and the lower surface (22) of the tooth (2) can be an outer curved surface or a concave curved surface; It can be a curved surface or a different shape of a flat surface.

The tape in the present invention is a tape having a gentle characteristic, and the tape is woven to significantly reduce the thickness and volume of the center line of the tape. The ultra-thin tape has a more zipper tape than the prior art. For the thin and light characteristics, both the ultra-thin teeth and the ultra-thin tape of the present invention constitute a lightweight and soft-reinforced ultra-thin plastic steel zipper.

The ultra-thin tape used in the zipper tape of the present invention is thinned in addition to the thickness of the prior art zipper tape itself, and is also embodied in the use of an ultra-thin tape center line (11). As shown in FIG. 12, the thickness H1 of the ultra-thin tape center line (11) in the present invention is about 70% of the thickness H4 of the center line of the prior art zipper tape, and is reduced by about 30%. The technical tape has a softer property, but because the centerline is thinner, when the plastic steel tooth is injection molded on the tape, the bite strength of the tooth and the tape is insufficient, and in order to improve the situation, the ultrathin is increased. The strength of the bond between the plastic zipper teeth and the tape is further improved by the present invention.

The ultra-thin plastic steel zipper provided by the invention has a zipper tape (1) which is an ultra-thin cloth tape, and the zipper tape (1) and the tooth (2) are in the joint surface area along the arrangement direction of the teeth (2). The center line (11) is provided with a row of holes (12) arranged in a continuous interval, the teeth (2) are injection molded on the zipper tape (1), and the zipper tape (1) is combined with each tooth (2). In the plane, there is at least one hole (12), or more than one hole (12), a stabilizing column (26) runs through the hole (12), and the stabilizing column (26) is integrated with the tooth (2).

As shown in Fig. 13, the ultra-thin tape of the zipper is designed by the structure of the row-shaped holes (12) at the center line, and the row-shaped holes on the tape can be set by the structure of the textile, and at the same time of the webbing Forming, in addition, laser and punching methods can be used to form holes; plastic steel teeth are in injection molding When forming, the plastic will penetrate the hole (12) of the belt centerline, as shown in Fig. 15, forming a stabilizing column (26) inside the tooth, thereby forming a tighter bond between the tooth and the cloth belt. Strengthen the purpose and effect of zipper pull. The tooth of the invention is thinner than the prior art tooth, and the overall zipper softness is also greatly improved, and the ultra-thin plastic steel zipper of the invention can be obviously tested by the structural arrangement of the row of small holes and the stable column on the cloth belt. Exceeds the strength of ordinary plastic steel zippers produced by the prior art.

In addition, since the tape combined with the teeth is continuously produced in the longitudinal direction in the production process, it needs to be cut into several sections according to the size of the product, and the vacant part between each section needs to cut the teeth which are injection molded on the tape. Eliminated. Because the tooth of the present invention is tightly combined with the tape in a manner that penetrates the tape hole, the zipper product cannot be completed by the prior art tooth removal method; the prior art tooth removal method is Using the fixed inch technology, the teeth are first formed on the cloth belt, and then the fixed length teeth are chopped and peeled off by the equipment cutter, and then the upper and lower ends of the zipper are injected on the cloth belt to complete the finished product; The ultra-thin tooth of the present invention is formed by the formation of the stabilizing column (26) and the tape. If it is manufactured by the existing fixing technology, the problem of damage to the tape may occur when the tooth is peeled off.

In order to solve this problem, the ultra-thin zipper tape (1) of the ultra-thin plastic zipper provided by the present invention adopts a novel automatic venting technique, and is formed when the teeth are injection molded on the tape. Then, the vacancy is set aside, and the teeth are not required to be cut off from the tape to avoid the phenomenon that the tooth stabilizing column is damaged when using the prior art, and each tooth can be freely controlled at the same time. The length of the production. Figure 14 is a schematic diagram of the finished product effect of the new automatic emptying position fixing technology. The invention adopts the innovative vacancy position fixing technology, solves the problem that the existing fixing technology will damage the ultra-thin tape, and maintains the integrity of the tape and the row hole.

As shown in FIG. 16, the ultra-thin plastic steel zipper provided by the present invention, the slider (5) comprises an upper guide plate (51), a lower guide plate (52), a base connecting post (53), a slider front end (54), The tail end (55) of the slider, the upper guide plate and the lower guide plate form an inner cavity (56) for passing the teeth, and the inner and outer shapes of the upper and lower guide plates are all in a tapered shape of the teeth, thereby the teeth are Completely coated to achieve a smooth opening and closing zipper function, avoiding the inconsistency between the slider and the tooth shape, and causing a chain phenomenon when pulling.

As shown in Figures 17, 18 and 19, the ultra-thin plastic steel zipper of the present invention further comprises a set of upper and lower stops (31, 32) and a lower stop (4) for preventing the slider from sliding out of the zipper, and has a sliding head to prevent slippage. Zippered The effect, the bottom stop (4) can be either an open tail or a tailless type. The open tail is composed of squares and bolts. It is like the middle zipper of the outer jacket. When the slider is pulled to the open end, the zipper can be separated from the left and right. In the form of a jacket zipper, the zipper tail cannot be separated from the left and right. The upper end is disposed at the uppermost end of the zipper, the lower end (4) is disposed at the lowermost end of the zipper, and the upper end is composed of the upper left end (31) and the upper right end (32), and the left and right upper end sections and teeth are The progressively-cut section has the same shape, and the upper section has a top-bottom symmetry. The top and bottom of the top stop are also purchased from the three basic planes of plane, gradually-cut surface and elevation; the bottom stop (4) can be used. It can also be used with the open end type, and the lower end (4) if it is not tail type, its cross section is the same as the progressive shape of the joint surface formed when the left and right teeth are engaged; the bottom stop (4) if it is open type, square, latch The section of the tooth is the same as the progressive section of the tooth.

As shown in Fig. 20, the tooth head portion (24) has a plane (21) having a length L1 toward the tooth tail portion (25), and the overall length of the tooth head portion (24) to the tooth tail portion (25) is L2, L1 length. The setting accounts for more than 40% of L2. This plane can be adjusted according to the product requirements. The specific function of the tooth plane (21) is to maintain the overall tensile strength of the teeth and avoid the strength of the thin zipper teeth. Insufficient problem, in addition, this plane can maintain the high stability of the self-locking force of the slider and the tooth, and reduce the ratio of the progressive face to be too large, resulting in the lock force of the inner cavity of the slider and the misalignment of the face, causing the lock force to fail. Problem; Maintaining the plane L1 length above 40% of the total length L2 of the tooth is the most stable value through design and practice identification, thereby maintaining the zipper product with safe locking force physical properties.

As shown in Fig. 21, in order to ensure that the entire tape is more closely attached to the center line (11), the zipper is softened, the center line (11) has a diameter of H1, and the zipper tape (1) has a thickness of H3. The ultra-thin plastic steel zipper provided by the invention has a ratio of a diameter H1 of the center line (11) of the zipper tape to a thickness H3 of the zipper tape of 2.4:1 or less, and a center line diameter and a zipper tape of the zipper tape produced by the prior art. The ratio of thickness will exceed 2.7:1. The ultra-thin tape center line used in the present invention has a thickness reduction of about 30% compared with the prior art tape center line, which improves the limitation of the prior art tape centerline volume thickness, and the overall softness of the ultra-thin plastic steel zipper is also simultaneously Compared with the prior art zipper, it can significantly increase the softness of the product by about 50% when bending, and break the soft and thin characteristics of the zipper to a new level.

As shown in FIG. 22, the ultra-thin plastic steel zipper provided by the present invention has a center line thickness of H1 and less than 43% of the maximum thickness H2 of the tooth (2), and the thickness of the prior art zipper center line occupies the tooth. The maximum thickness is about 50% or less; and the overall thickness of the tooth of the present invention is about 10% to 20% thinner than that of the prior art tooth. By reducing the thickness of the tooth, a breakthrough is made in saving the amount of plastic.

As shown in FIG. 24, the ultra-thin plastic steel zipper provided by the present invention has an intersection angle θ1 at an intersection of the progressive surface (22) and the elevation surface (23) of the tooth, and the angle of θ1 is greater than 100 degrees and less than 150 degrees. .

As shown in FIG. 25, the present invention improves the tooth tail of the prior art plastic zipper teeth, and the intersection angle is about 80 to 100 degrees, and the sharp angle is sharp and hard, and the tooth is not easy to be formed by the gentle intersection angle design. The comfort and softness of the shaving hand.

As shown in Fig. 26, in the ultra-thin plastic steel zipper provided by the present invention, the tooth tail portion (25) comprises two upper and lower façades (23), and the total height of the two façades is H6 of 0.5 to 1.5 mm.

The design of the rear end of the tooth can make the slider (5) have a stable abutting track when sliding on the tooth, so as to avoid the phenomenon that the slider slides out of the tooth track and breaks the chain when the pulling is performed; The total height H6 of the façade is calculated and tested. The height of the H6 should be greater than 0.5mm. The tail of the tooth can produce the upper and lower façade on the tape to maintain the safety of the zipper when it is pulled. H6 height The setting of less than 1.5mm is to reduce the sharp touch of the prior art nipper occlusion near the right angle, and to increase the soft and comfortable characteristics of the ultra-thin plastic zipper.

DRAWINGS

Figure 1, the overall zipper effect diagram

Figure 2, the overall zipper effect diagram

Figure 3, top and bottom are symmetrical external arch type progressive tooth profile

Figure 4, top and bottom are asymmetrical external arch type progressive tooth profile

Figure 5, sectional view of the joint surface of the left and right teeth

Figure 6. Stereogram of the tooth

Figure 7. A perspective view of a tooth showing a gap

Figure 8, the combination of teeth and cloth belt

Figure 9. Schematic diagram of the tooth structure

Figure 10, a perspective view of the upper teeth

Figure 11, the upper and lower teeth of the tooth

Figure 12 is a comparison of the centerline thickness of the prior art tape and ultra-thin tape

Figure 13. Schematic diagram of centerline and hole distribution of ultra-thin tape

Figure 14. Schematic diagram of the effect of the finished product of the new emptying position

Figure 15. Schematic cross-section of the internal stabilizing column of the tooth

Figure 16, three-dimensional structure of the ultra-thin slider

Figure 17, left and right upper front view

Figure 18, left and right top stop section

Figure 19, bottom section

Figure 20, a schematic diagram of the ratio of the tooth plane length L1 to the overall length L2

Figure 21, a schematic diagram of the thickness of the centerline of the tape and the thickness of the tape body

Figure 22, Schematic diagram of the thickness of the centerline of the tape and the thickness ratio of the teeth

Figure 23 is a comparison of the thickness of the prior art tooth and ultrathin tooth

Figure 24, the setting of the angle θ1 of the progressively rough surface of the ultra-thin tooth

Figure 25. Comparison of prior art tooth and ultra-thin tooth turning angle

Figure 26, the thickness of the upper and lower surfaces of the teeth

Figure 27 is a schematic cross-sectional view of the concave concave tooth

Figure 28, schematic cross-sectional view of the inclined progressively toothed snap

In the figure:

1 zipper tape

11 center line

12 holes

2 progressive cutting teeth

21 plane

22 gradually noodles

23 facade

24 tooth head

25 tooth tail

26 stable column

27 above

28 below

29 clearance

31 left upper stop

32 right upper end

4 stop

5 ultra-thin slider

51 upper guide

52 lower guide

53 core connection column

54 slider front end

55 pull end

56 lumen

6 midline

detailed description

The contents of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

The embodiment of the ultra-thin plastic steel zipper of the present invention comprises a pair of zipper tapes 1 and left and right teeth 2 combined with the inner side of the tape, the teeth are designed to gradually reduce the material from the tooth head toward the tail of the teeth, and the tape It is woven from the reduced centerline volume of the tape. This ultra-thin tape is lighter than the prior art tape. The ultra-thin tape and ultra-thin teeth form a lightweight and soft-reinforced ultra-thin plastic steel. Zipper; the whole zipper is bilaterally symmetrical, and the single tooth has a thicker shape at the tooth head and a thinner shape of the tail of the tooth. When the left and right fasteners are interspersed, the cross section is also thicker in the middle, and the left and right ends are thinner. Gradually connect the combined faces.

The tooth of the embodiment has a symmetrical progressive shape of the upper surface and the lower surface, and the upper surface and the lower surface are respectively formed by three planes of the plane 21, the progressively-cut surface 22, and the vertical surface 23 of the tooth tail portion, and the tooth head portion 24 is oriented toward the tooth tail portion. There is a section 21, the end of the plane 21 is followed by a progressively-cut surface 22, and the progressively-cut surface is connected to a vertical surface 23 to reach the cloth strip; the design of the tooth progressively reducing material reduces the overall volume reduction to achieve thinness and light weight. The goal of saving plastics.

There are four embodiments of the tooth structure. The first embodiment is the same as that shown in Figures 3, 5 and 9. The upper surface and the lower surface are composed of three planes: a plane 21, a progressive surface 22 and a vertical surface 23, wherein the progressive surface 22 has a tape as a reference datum. The progressively-faced surface presents an external arched surface shape; the tooth head The portion 24 first maintains a plane 21 in the direction of the tail of the tooth, and the end of the plane 21 is followed by an outer arch-shaped tapered surface 22, and then connected to a vertical surface 23 to reach the cloth belt, and the joint between the outer arch-shaped progressive surface and the plane is higher, and The joint of the façade is lower, the tooth head 24 is thicker than the tooth tail portion 25, and the upper and lower teeth of the tooth have a symmetrical shape; when the left and right sets of the tooth heads are engaged, the upper and lower teeth of the left and right teeth are 27 and 28 below. Also formed in the middle is a plane, the two sides are the joint surface of the outer arch type progressive face and the façade, and the cross section of the occlusal portion also forms a progressively thick structural change with a thicker middle portion and a thinner left and right ends.

The second embodiment of the tooth structure is as shown in FIG. 27, and the upper and lower sides are respectively purchased from three basic faces of the plane 21, the progressive face 22, and the façade 23, wherein the tapering surface 22 is made of a tape. Referring to the reference plane, the progressive surface presents a concave curved surface; the tooth head 24 first maintains a plane 21 in the direction of the tail of the tooth, and the end of the plane 21 is followed by a concave progressive surface 22, and then a vertical surface 23 is connected to the cloth belt. The connection between the concave progressive face and the plane is higher, the connection with the elevation is lower, the tooth head 24 is thicker than the tooth tail portion 25, and the upper and lower teeth of the tooth have a symmetrical shape; when the left and right tooth heads are engaged, left and right The occlusal portions of the teeth also form a progressively thicker structure with a thicker middle and a thinner left and right ends.

A third embodiment of the tooth structure is as shown in Fig. 28. The upper and lower sides are respectively purchased from the three basic faces of the plane 21, the progressive face 22, and the façade 23, wherein the progressive face 22 is a plane, but is flat 21 is not in the same plane to form a progressive shape, the tooth head 24 first maintains a plane 21 in the direction of the tail of the tooth, the end of the plane 21 continues to form a gradually flattened plane 22, and then connects a facade 23 to the tape, the progressively flat plane The intersection of 22 and the plane 21 is higher, the intersection with the elevation 23 is lower, the tooth head 24 is thicker than the tooth tail 25, and the upper and lower teeth of the tooth are symmetrical; when the left and right tooth heads are engaged The upper surface 27 and the lower surface 28 of the occlusal portions of the left and right teeth also form a plane in the middle, and the two sides are a combination of a gradually-cut plane and a façade. The cross-section of the occlusal portion also forms a thicker middle portion, and the left and right ends are thinner. Gradual structural changes.

The fourth embodiment of the tooth structure is as shown in FIG. 4, and the upper and lower sides are respectively purchased from three basic faces of the plane 21, the progressive face 22, and the façade 23, wherein the tapering surface 22 is a cloth tape. With reference to the reference plane, the progressive face exhibits an outer arched surface; the tooth head 24 maintains a plane 21 in the direction of the tail of the tooth, the end of the plane 21 is followed by an outer arched face 22, and then a facade 23 is connected to the tape. The connection between the outer arch-shaped progressive face and the plane is higher, the connection with the elevation is lower, and the tooth head 24 is thicker than the tooth tail portion 25; in this embodiment, the upper and lower teeth of the tooth have an asymmetrical shape, and the upper surface is a zipper. Stitched on the outer side of the garment, the bottom is zippered to the inner side of the garment, outside The outer arch progressive surface of the side is larger than the outer arch of the inner side, and the outer surface has a shorter length than the inner side. When the left and right sets of teeth are engaged, the left and right teeth are engaged with each other. And the lower part 28 also forms a plane in the middle, and the two sides are the joint surface of the outer arch type gradually-cut surface and the façade, and the cross-section of the nip portion also forms a progressively thicker structure with a thicker middle and a thinner left and right ends.

The tooth of the embodiment adopts a progressive cutting design to reduce the volume of the tail portion of the tooth, and the tooth tail portion of the prior art tooth has a sharp angle which is improved by a sharp angle, and has a gradually-cut shape from the upper and lower sides, so that the zipper is provided. The teeth rely on the surface of the human body to be softer and more comfortable, and at the same time reduce the phenomenon that the teeth are easy to hook the clothes fibers. The breakthrough of the ordinary plastic steel zipper has given the user a relatively thick sense of use, giving the plastic zipper a novel feeling of lightness and suppleness. The tooth of the present invention is thinner than the prior art zipper teeth, and the softness of the integral zipper is significantly improved.

In order to ensure that the teeth and the cloth have sufficient strength, the center line of the tape has a large volume and thickness, and the teeth of the zipper also maintain a large thickness. Due to the influence of these two factors, the existing plastic steel The zipper is thick and soft. The ultra-thin zipper of the invention has a tooth thickness which is much thinner than that of the prior art zipper tooth, and the main body of the tape has a thinner improvement, and the center line of the tape is relatively thinner and thinner, and the innovative design of the two aspects is adopted. To make a breakthrough in the softness of the zipper. Moreover, in this embodiment, the design of the row-shaped hole is increased on the inner side of the ultra-thin tape, so that the tooth is injection-molded in the through-hole, and a stable column is generated inside the tooth, thereby further bonding the tooth and the tape tightly, so that the embodiment is implemented. The ultra-thin plastic zipper has been tested to significantly exceed the strength of conventional plastic zippers produced using the prior art.

The zipper tape of the embodiment is an ultra-thin zipper tape 1 having a light and thin characteristic, and the tape has a row of holes 12 near the center line 11; the thickness H1 of the center line 11 of the compliant tape is about the prior art. The zipper tape has a centerline thickness of 70% of H4, which is reduced by about 30%. Therefore, it has a softer characteristic than a normal cloth belt, and at the same time increases the bonding strength between the thin plastic zipper teeth and the tape, the zipper. The ultra-thin cloth belt is designed with a row of holes at the center line. When the plastic tooth is injected, the plastic will penetrate the hole of the center line of the cloth, forming a stable column 26 inside the single tooth, whereby the structure will The teeth are more closely combined with the cloth belt to achieve the goal of strengthening the zipper pull. However, because the teeth are more closely combined with the tape in the manner of passing through the tape holes, the zipper product cannot be completed by the prior art tooth removal method, and the present invention adopts a new type of emptying position. Inch technology, when the teeth are formed on the tape, the vacancies are discharged. Solve the problem that the old technology will damage the tape and keep the integrity of the row of holes on the tape.

The slider 5 in this embodiment includes an upper guide plate 51, a lower guide plate 52, and a base connecting post 53. The upper guide plate and the lower guide plate form an inner cavity 56 through which the element passes, and the inner and outer sides of the upper and lower guide plates are all compliant. The progressive shape of the teeth is used to completely cover the teeth, so as to achieve the smooth opening and closing of the zipper.

The embodiment further includes a set of upper and lower stops 4 for preventing the slider from sliding out of the zipper, the upper end is disposed at the uppermost end of the integral zipper, and the lower end 4 is disposed at the lowermost end of the integral zipper, and the upper end is terminated by the upper left stop 31 and the upper right end. The composition of the 32 is the same, the left and right upper end sections are in conformity with the progressive shape of the tooth, and the lower end 4 is set to be not tail type, and the cross section thereof conforms to the progressive shape of the joint surface formed by the right and left teeth.

The length of a plane 21 existing in the direction of the tooth tail portion 25 of the tooth head portion 24 is L1, the overall length of the tooth head portion 24 to the tooth tail portion 25 is L2, and the length of the L1 is set to be more than 40% of L2.

In order to ensure that the entire tape is more closely attached to the center line 11, and the zipper is softened, the ratio of the diameter H1 of the center line 11 to the overall thickness H3 of the zipper tape is less than 2.4:1, and the center line diameter and the zipper of the ordinary zipper tape are zippered. The ratio of the thickness of the tape exceeds 2.7:1, and the core wire of the ultra-thin tape used in the invention is reduced by about 30%, which breaks through the limitation of the volume thickness of the center line of the prior art, and improves the softness and thinness of the zipper. To a new level.

According to the embodiment of the ultra-thin plastic steel zipper provided by the present invention, the thickness of the center line is H1, which is less than 43% of the maximum thickness H2 of the tooth 2. The thickness of the common zipper center line of the prior art accounts for less than 50% of the maximum thickness of the tooth. By reducing the thickness of the tooth design, the plastic amount of the integral element can be made a breakthrough, and the overall thickness of the ultrathin tooth of the present invention is already about 10% to 20% thinner than that of the prior art tooth.

By progressively reducing the material, the volume reduction of the tooth is reduced to lightness, and the angle of the intersection θ1 of the progressive surface 22 and the elevation 23 is greater than 100 degrees and less than 150 degrees, which improves the prior art tooth close to a right angle. The sharp and hard touches of the touch, thanks to the smooth and harmonious intersection design, make the teeth have comfortable and soft characteristics that are not easy to scratch.

In the tooth tail portion of the embodiment, the total length of the upper and lower façades is H6, the length of the H6 is greater than 0.5 mm, and the length is less than 1.5 mm, and the function is to allow the slider 5 to have a stable abutment when sliding on the teeth. In order to avoid the phenomenon that the slider slides out of the tooth track and breaks the chain when the pull is made.

Claims

An ultra-thin plastic steel zipper comprising a pair of zipper tapes (1), two sets of teeth (2) which are respectively arranged in the direction of a pair of zipper tapes (1), and are attached to the inner side of the zipper tape (1) The head (5), a pair of upper ends (31, 32) and a lower end (4), the overall zipper is bilaterally symmetrical, and the left and right teeth can be inserted and slid by the sliding of the slider (5), which is characterized in that the tooth head (24) Thicker than the tooth tail (25), the tooth tail (25) is thinner than the tooth head (24), and the upper (27) and lower (28) of the tooth (2) are seen from the cross section of the tooth (2). Both are gradually tapered from the tooth head (24) toward the tooth tail (25).
An ultra-thin plastic steel zipper according to claim 1, wherein the upper surface (27) and the lower surface (28) of the tooth (2) are each a plane (21), a progressive surface (22), and a facade. (23) The three faces are composed. When the left and right sets of teeth are engaged, the upper (27) and the lower (28) formed by the right and left teeth are combined to form a plane in the middle, and the sides are gradually tapered and façade. The tapered shape structure of the connection.
The ultra-thin plastic steel zipper according to claim 1 or 2, characterized in that the tooth (2) is provided with a gap (29), the tape (1) passes through the gap (29), and the gap (29) The center line (11) of the bite tape is combined, and the teeth are combined with the tape (1) at the gap (29).
An ultra-thin plastic steel zipper according to claim 1 or 2, characterized in that the upper surface (27) and the lower surface (28) of the tooth are symmetrical.
An ultra-thin plastic steel zipper according to claim 1 or 2, wherein the upper surface (27) and the lower surface (28) of the tooth are asymmetric.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the shape of the tapered surface (22) of the upper (27) and lower (28) teeth of the tooth (2) is the shape of an outer curved surface.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the shape of the tapered surface (22) of the upper (27) and lower (28) sides of the tooth (2) is a concave curved surface.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the shape of the tapered surface (22) of the upper surface (27) and the lower surface (28) of the tooth (2) is a planar shape.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the zipper tape (1) is an ultra-thin tape, and the zipper tape (1) and the teeth (2) are combined along the teeth. The teeth (2) are arranged in a direction along the center line (11) with a row of holes (12) arranged in a continuous interval, cloth The row of holes (12) on the belt can be formed by setting the webbing structure at the same time as the webbing, or by laser and punching, and the teeth (2) are injection molded on the zipper tape (1). The zipper tape (1) has at least one hole (12) in the joint region of each tooth (2), and the stable column (26) penetrates the hole (12), and the stable column (26) and the tooth (2) ) combined into one.
The ultra-thin plastic steel zipper according to claim 9, wherein the teeth (2) on the tape (1) adopt a novel automatic venting technique, and the teeth are injection molded on the tape. Leave the fixed space.
The ultra-thin plastic steel zipper according to claim 9, wherein the ratio of the thickness H1 of the center line (11) of the fastener tape to the thickness H3 of the zipper tape is 2.4:1 or less.
The ultra-thin plastic steel zipper according to claim 9, characterized in that the thickness H1 of the center line (11) accounts for 43% or less of the maximum thickness H2 of the teeth (2).
The ultra-thin plastic steel zipper according to claim 9, wherein the slider (5) comprises an upper guide plate (51), a lower guide plate (52), a base connecting post (53), a slider front end (54), The slider end (55), the upper guide plate and the lower guide plate form an inner cavity (56) for allowing the teeth to pass therethrough, and the inner and outer sides of the upper and lower guide plates are arranged in a tapered shape.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the pair of upper ends (31, 32) are provided at the uppermost end of the zipper, and the upper end is stopped by the upper left end (31) and the upper right end (32). The cross section is the same as the tapered cross section of the tooth (2), the bottom stop (4) is set at the lowermost end of the zipper, and the bottom stop (4) can be either a tail type or an open tail type. When the bottom end (4) adopts the tail type, the section of the joint is the same as the progressive section of the joint surface when the left and right teeth are engaged; the bottom stop (4) is the block of the bottom stop (4) when the tail type is used. The cross section of the pin is the same as the cross section of the tooth.
The ultra-thin plastic steel zipper according to claim 1 or 2, characterized in that the length L1 of the tooth head (24) of the tooth (2) to the plane (21) of the tooth tail portion (25) occupies the tooth head. (24) 40% or more of the total length L2 of the tooth tail portion (25).
The ultra-thin plastic steel zipper according to claim 1 or 2, characterized in that the intersection of the progressive face (22) and the façade (23) of the tooth forms an intersection angle θ1, and the angle of θ1 is greater than 100 degrees and less than 150. degree.
The ultra-thin plastic steel zipper according to claim 1 or 2, wherein the tooth tail portion (25) comprises two upper and lower façades (23), and the total height (H6) of the two façades (23) is 0.5 to 1.5. Mm.