CN112293874A

CN112293874A - Slide fastener

Info

Publication number: CN112293874A
Application number: CN201910686300.2A
Authority: CN
Inventors: 朱允励; 吉田保彦; 近藤祐司; 林志宏; 徐献祥; 吴克均
Original assignee: YKK Taiwan Co Ltd
Current assignee: YKK Taiwan Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2021-02-02

Abstract

The invention provides a zipper, which can drive a slider to move along a zipper chain in a rotating mode and has good operation stability. The zipper comprises a zipper chain and a slider. The fastener chain has a pair of element rows, and each element of at least one element row of the element rows has an engaging portion formed on an outer side. The slider is provided on the fastener chain and includes a drive gear fitted in the fitting portion of the fastener element. The drive gear is driven to rotate so that the slider moves on the fastener chain, thereby opening or closing the element row.

Description

Slide fastener

Technical Field

The present invention relates to a slide fastener (slide fastener).

Background

As a conventional slide fastener, a slide fastener chain (fastener chain) is configured by providing a pair of element rows in which a plurality of elements (elements) are arranged on a fastener tape (fastener tape), and attaching a slider (slider) for a slide fastener to the slide fastener chain. As the slider moves on the fastener chain in this manner, the separating column (separating column) provided inside the slider passes between the element rows or retreats between the element rows, thereby opening or closing the element rows. That is, the fastener stringer and the slider can be adjusted in size, color, or shape according to need, preference, or the like, and are suitable for attachment to a fabric (fabric) such as clothes.

Further, as a driving method of the slider, it is common practice to provide a driving member such as a pull tab or a string on the slider, or to provide a driving structure (such as a concave portion or a convex portion) on the slider. Through pulling-on piece or rope, perhaps promote the drive structure on the pull head, the pull head can move along the zip fastener chain, and then reaches the effect of opening or closed chain tooth row.

In addition, there is also a practice of using a gear set in a slide fastener. For example, the slider of a slide fastener is provided with a gear set, and the gear set abuts against the element rows from opposite sides of the fastener chain. Such a gear train typically acts as a guide member to assist in the movement of the slider on the zipper chain, and thus the zipper still needs to cooperate with a drive member such as a pull tab to drive the slider. Even when a gear train is used as a drive member, the gear train fits teeth of gears into a gap between teeth, the fitting effect between the gears and the tooth row is not good, the drive force of the gears is difficult to be transmitted to the tooth row, and further, the drive effect needs to be achieved by a plurality of gears (for example, two sets of upper and lower gear trains).

Disclosure of Invention

The invention provides a zipper, which can drive a slider to move along a zipper chain in a rotating mode and has good operation stability.

According to an embodiment of the present invention, a slide fastener includes a fastener stringer and a slider. The fastener chain has a pair of element rows, and each element of at least one element row of the element rows has an engaging portion formed on an outer side. The slider is provided on the fastener chain and includes a drive gear fitted in the fitting portion of the fastener element. The drive gear is driven to rotate so that the slider moves on the fastener chain, thereby opening or closing the element row.

In the slide fastener of the embodiment of the invention, the slider further includes an operating gear. The operating gear is arranged on the zipper chain and is embedded in the driving gear. By rotating the operating gear, the drive gear is driven by the operating gear to rotate, so that the slider moves on the fastener chain, thereby opening or closing the element rows.

In the slide fastener according to the embodiment of the invention, the operating gear is provided at the center of the fastener chain, and the driving gear is provided outside the fastener chain and is fitted to the fitting portion from the outside of the element having the fitting portion.

In the slide fastener of the embodiment of the invention, the slider further includes a connecting gear. The connecting gear is embedded between the operating gear and the driving gear.

In the slide fastener according to the embodiment of the invention, each element of the element rows on both sides of the element rows has the fitting portion formed on the outer side, and the slider further includes an auxiliary gear. The auxiliary gear and the driving gear are respectively arranged on two opposite sides of the zipper chain and are respectively embedded in the embedding parts of the corresponding zipper teeth in the zipper tooth row.

In the slide fastener according to the embodiment of the present invention, the auxiliary gear functions as a stopper gear without being fitted to the operating gear. The drive gear is driven by the operating gear to rotate, thereby opening or closing the element row, and the auxiliary gear functioning as a stopper gear rotates in accordance with the movement of the slider.

In the slide fastener according to the embodiment of the present invention, the auxiliary gear is fitted to the operating gear to function as a driving gear. The drive gear and the auxiliary gear functioning as a drive gear are rotated by the operation gear at the same time, thereby opening or closing the element rows.

In the slide fastener of the embodiment of the invention, the size of the auxiliary gear is equal to the size of the driving gear.

In the slide fastener of the embodiment of the invention, the auxiliary gear and the drive gear respectively have parallel portions perpendicular to an extending direction of the fastener chain, and extending lines of the parallel portions are parallel to each other.

In the slide fastener of the embodiment of the invention, an extension line of the parallel portion of the auxiliary gear and an extension line of the parallel portion of the driving gear coincide with each other.

In the slide fastener according to the embodiment of the present invention, an extension line of the parallel portion of the auxiliary gear and an extension line of the parallel portion of the driving gear are shifted from each other.

In the slide fastener according to the embodiment of the invention, the fitting portion of the element is a protruding portion protruding outward from the element. The width of the protruding portion is smaller than the width of the other portion of the element, and the drive gear is fitted to the protruding portion.

In the slide fastener according to the embodiment of the invention, the width of the protruding portion decreases gradually toward the outer side, and opposite side surfaces of the protruding portion form inclined surfaces corresponding to the tooth surfaces of the drive gear.

In the slide fastener according to the embodiment of the invention, in the region where the element row having the fitting portion and the drive gear are fitted to each other, two adjacent teeth of the drive gear are located on opposite sides of the protruding portion of the corresponding element, respectively.

In the slide fastener according to the embodiment of the invention, in the region where the element row having the fitting portion and the drive gear are fitted to each other, two adjacent teeth of the drive gear are disposed between two adjacent protruding portions in the element row in correspondence.

In the slide fastener according to the embodiment of the invention, the fitting portion of the element is a recessed portion recessed inward from an outer side of the element. The width of the recessed portion is smaller than the width of the other portion of the fastener element, and the drive gear is fitted in the recessed portion.

In the slide fastener according to the embodiment of the invention, the width of the recessed portion decreases from the outer side to the inner side, and opposite side surfaces of the recessed portion form inclined surfaces corresponding to the tooth surfaces of the drive gear.

In the slide fastener according to the embodiment of the invention, in the region where the element row having the fitting portion and the drive gear are fitted to each other, two adjacent teeth of the drive gear are located inside and outside the recessed portion of the corresponding element, respectively.

In the slide fastener according to the embodiment of the invention, in the region where the element row having the fitting portion and the drive gear are fitted to each other, one of the teeth of the drive gear is disposed between two adjacent elements in the element row.

In the slide fastener of the embodiment of the invention, the slider further includes a base. The operating gear and the driving gear are arranged on the base, so that the pull head is modularized. The zipper chain penetrates the base to be embedded with the driving gear.

In the slide fastener of the embodiment of the invention, an operation panel is further included. The operation panel is disposed on the base and connected to the operation gear. The operating gear is driven to rotate synchronously by rotating the operating plate, and the drive gear is driven to rotate by the operating gear, so that the slider moves on the fastener chain, thereby opening or closing the element rows.

In the zipper of the embodiment of the invention, the zipper further comprises a bracket and a clutch. The holder is provided on the base, the clutch is provided on the operating gear, and the operating panel is provided on the holder, is movable on the holder in a vertical direction with respect to the base, and is fitted to the clutch by being pressed or separated from the clutch by being pulled. In a case where the operating plate is fitted to the clutch, the clutch is driven to rotate in synchronization with the operating gear by rotating the operating plate, and the drive gear is driven to rotate by the operating gear, so that the slider moves on the fastener chain, thereby opening or closing the element rows. Rotation of the operating disk does not drive the operating gear when the operating disk is disengaged from the clutch.

The zipper of the embodiment of the invention also comprises a button, a pair of pressing pieces and a clutch. The button is arranged on the operation panel, the pair of pressing pieces are arranged on the left side and the right side of the operation panel, and the clutch is arranged in the operation panel and connected to the button. The operating panel, the button and the clutch are arranged on the base. The clutch is movable on the operation panel in a vertical direction with respect to the base to be fitted to the operation gear downward or separated from the operation gear upward. When the button is pressed downward and the clutch is fitted downward to the operating gear, the operating disc is rotated to drive the clutch and the operating gear to rotate in synchronization with each other, and the drive gear is driven by the operating gear to rotate, so that the slider moves on the fastener chain, thereby opening or closing the element row. When the pair of pressing members is pressed from both left and right sides to separate the clutch upward from the operating gear, the operating gear is not driven by the rotation of the operating panel.

In the slide fastener according to the embodiment of the present invention, the clutch is provided in the accommodating portion of the operation panel, and includes a body, a pair of left and right elastic arms extending from the body, and a pair of inclined surfaces each formed at a front end of the pair of elastic arms. The pair of pressing pieces are arranged in the pair of channels of the operating panel and are provided with a pair of tip parts formed at the front ends. The pair of pressing pieces face the pair of inclined surfaces of the pair of elastic arms of the clutch with the pair of tip end portions. When the pair of pressing members are pressed from both left and right sides, the pair of pressing members push the pair of inclined surfaces of the pair of elastic arms of the clutch with the pair of tip end portions, the pushed pair of inclined surfaces convert a horizontal movement amount into a vertical movement amount, and the clutch is separated upward from the operating gear, and the button protrudes from the operating panel. When the button is pressed down, the pair of inclined surfaces of the pair of elastic arms of the clutch moves along edges of the pair of tip end portions of the pair of pressing pieces, and elastically pushes the pair of pressing pieces to move to the left and right sides.

In view of the above, the slide fastener provided by the present invention includes a fastener stringer and a slider. The fastener chain has a pair of element rows, and each element of at least one element row of the element rows has an engaging portion formed on an outer side. The slider is provided on the fastener chain and includes a drive gear to be fitted to the fitting portion of the fastener element. Thus, the drive gear is driven to rotate, and is further reliably fitted to the corresponding fitting portion on the element row, so that the slider moves on the fastener chain, thereby opening or closing the element row. In other words, since the engaging portion for engaging with the drive gear is provided on the element of the element row, the driving force generated by the rotation of the drive gear can be more reliably transmitted to the element row, and the process of rotating the drive gear on the element row is further stabilized. Therefore, the zipper of the invention can drive the slider to move along the zipper chain in a rotating mode and has good operation stability.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a schematic view of a slide fastener of a first embodiment of the invention;

FIG. 2 is an enlarged fragmentary schematic view of the zipper of FIG. 1;

FIG. 3A is a perspective view of the fastener element of FIG. 1;

FIG. 3B is a top view of the fastener element of FIG. 3A;

FIG. 4 is a schematic view of a slide fastener of a second embodiment of the invention;

FIG. 5 is an enlarged fragmentary schematic view of the zipper of FIG. 4;

FIG. 6A is a perspective view of the fastener element of FIG. 4;

FIG. 6B is a top view of the fastener element of FIG. 6A;

FIG. 7 is a schematic view of a slide fastener of a third embodiment of the invention;

FIG. 8 is an enlarged fragmentary schematic view of the zipper of FIG. 7;

FIG. 9 is a schematic view of a slide fastener of a fourth embodiment of the invention;

FIG. 10 is an enlarged fragmentary schematic view of the zipper of FIG. 9;

FIG. 11 is an exploded schematic view of the pull head of FIG. 9;

FIG. 12 is an exploded cross-sectional view of an operating plate and clutch according to another embodiment of the present invention;

FIGS. 13A and 13B are schematic cross-sectional views of the clutch of FIG. 12 mounted to a slider in different operating conditions;

FIG. 14 is an exploded schematic view of a slide fastener in accordance with another embodiment of the present invention;

FIG. 15 is an exploded cross-sectional view of the operating panel, button, pair of pushers and clutch of FIG. 14;

fig. 16A and 16B are schematic cross-sectional views of the operation panel, the button, the pair of pressing members, and the clutch of fig. 15 attached to the slider in different operation states.

Description of the reference numerals

100. 200, 300, 400 a: a zipper;

110. 210, 310, 410: a zipper chain;

112a, 112b, 212a, 212b, 312a, 312b, 412a, 412 b: a chain element row;

112a1, 212a1, 312a1, 312b1, 412a1, 412b 1: a fitting portion;

112a2, 212a 2: a side surface;

120. 220, 320, 420: a slider;

122. 222, 322, 422: an operating gear;

124. 224, 324, 424: a drive gear;

126. 226, 326, 426: a base;

228. 328, 428: a connecting gear;

324a, 329a, 424a, 429 a: a parallel portion;

329. 429: an auxiliary gear;

402: a fabric;

414: a zipper tape;

422 a: a protruding shaft;

422b, 430a, 450a, 480 a: a tooth surface;

426 a: a base body;

426 b: an upper cover of the base;

426c, 430 b: a recess;

426 d: a shaft;

426 e: a space;

426 f: a separation column;

430: an operation panel;

430 c: a receptacle portion;

430 d: a channel;

430e, 480 c: a bevel;

440: a support;

450. 480: a clutch;

460: a button;

470: a pressing member;

470 a: a tip portion;

480 a: a body;

480b, and (3) a: a resilient arm;

a1, a2, A3: a dashed line;

e1, E2, E3, E4, E5, E6, E7, E8: a zipper tooth;

t1, T2, T3, T4, T5, T6, T7: teeth;

w1, W2, W3, W4, W5, W6: width.

Detailed Description

Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.

Fig. 1 is a schematic view of a slide fastener 100 according to a first embodiment of the present invention. Fig. 2 is a partially enlarged schematic view of the slide fastener 100 of fig. 1. Referring to fig. 1 and 2, in the present embodiment, the slide fastener 100 includes a fastener stringer 110 and a slider 120, wherein the fastener stringer 110 has a pair of

element rows

112a, 112b, the right element row 112a has a plurality of elements E1, and the left element row 112b has a plurality of elements E2. The elements E1, E2 of the

element rows

112a, 112b are engaged with each other, wherein fig. 1 and 2 show three elements E1 and two elements E2 as schematic illustrations, but the number of elements E1, E2 can be adjusted as required. The slider 120 is disposed on the fastener stringer 110, i.e., the fastener stringer 110 passes through the slider 120. In this way, the slider 120 can open or close the elements E1, E2 of the

element rows

112a, 112b by moving on the fastener chain 110.

Specifically, the fastener chain 110 has a fastener tape, not shown, and the

element rows

112a, 112b are provided on the fastener tape so that the entire fastener chain 110 can be threaded into the slider 120. The pull head 120 includes an operating gear 122, a drive gear 124, and a base 126. The operation gear 122 is fitted to the drive gear 124, and the operation gear 122 and the drive gear 124 are provided on the base 126, so that the slider 120 is modularized (as shown in fig. 1). That is, the slider 120 is configured as a single module by housing the operation gear 122 and the drive gear 124 in the base 126, and can be integrally attached to the fastener chain 110 (for example, the fastener chain 110 is threaded into the base 126, the operation gear 122 and the drive gear 124 are provided on the fastener chain 110, and the drive gear 124 is further fitted to the element rows 112a of the fastener chain 110).

The elements E1 of at least one element row 112a of the

element rows

112a, 112b have the fitting portions 112a1 formed on the outer side, and the other element row 112b of the

element rows

112a, 112b maintains the original element shape. The fitting portion 112a1 is formed on each element E1 of the element row 112a, and the drive gear 124 is fitted to the fitting portion 112a1 of the element E1. In other words, the fitting portion 112a1 formed in the element E1 is configured to allow the drive gear 124 to be fitted, and thus the drive gear 124 and the element E1 of the element row 112a can be more reliably fitted to each other. Thus, by rotating the operating gear 122, the drive gear 124 is rotated by the operating gear 122, so that the slider 120 moves on the fastener chain 110, thereby opening or closing the

element rows

112a, 112 b.

Further, in the fastener chain 110, the element E1 of the element row 112a and the element E2 of the element row 112b are fitted inside each other, and the separating column (shown in fig. 11) provided inside the base 126 is caused to pass between the

element rows

112a, 112b or to retreat between the

element rows

112a, 112b by the movement of the slider 120, thereby opening or closing the

element rows

112a, 112 b. The coupling portion 112a1 is formed outside the element E1 of the element row 112a, and the drive gear 124 is fitted to the coupling portion 112a1 of the element E1. That is, the drive gear 124 is provided outside the fastener chain 110, and is fitted to the fitting portion 112a1 from the outside of the element E1 having the fitting portion 112a 1. In contrast, the operating gear 122 is disposed at the center of the fastener chain 110. In this way, the user can operate the operating gear 122 of the slider 120 at the center of the fastener chain 110, and the operation of the slide fastener 100 is simplified.

In the present embodiment, the operation mode of the operation gear 122 may be such that the operation gear 122 is connected to an operation panel (shown in fig. 11) to be described later, and the operation gear 122 is driven to rotate simultaneously when the user rotates the operation panel, and the drive gear 124 is also rotated simultaneously, but other operation modes not shown may be used, and the operation mode of the operation gear 122 is not limited by the present invention. When the operating gear 122 is rotated clockwise in fig. 1, the driving gear 124 is rotated counterclockwise, and the slider 120 moves upward along the fastener chain 110 as a whole, so that the separating columns (shown in fig. 11) provided inside the base 126 are retreated between the

element rows

112a and 112b, and the

element rows

112a and 112b are closed. On the other hand, when the operation gear 122 is rotated counterclockwise in fig. 1, the drive gear 124 is rotated clockwise, and the slider 120 moves downward along the fastener chain 110 as a whole, so that the separation column (shown in fig. 11) provided inside the base 126 passes between the

element rows

112a and 112b, thereby opening the

element rows

112a and 112 b.

Although the present embodiment discloses the operation gear 122, in other embodiments not shown, the operation gear 122 may be omitted and the driving gear 124 may be directly driven to rotate (for example, the driving gear 124 is operated from the outside of the fastener chain 110 by disposing a member such as an operation panel on the driving gear 124). The foregoing is by way of example only.

Fig. 3A is a perspective view of element E1 of fig. 1. FIG. 3B is a top view of element E1 of FIG. 3A. Referring to fig. 1 to 3B, in the present embodiment, the fitting portion 112a1 of the element E1 is a protruding portion protruding outward from the element E1. The width of the protrusion, i.e., the fitting portion 112a1 (e.g., the widths W1 and W2 in fig. 3B) is smaller than the width of the other portion of the element E1 (e.g., the width W3 in fig. 3B). More specifically, the width of the fitting portion 112a1, which is a protrusion, decreases outward, so that the opposite side surfaces 112a2 of the fitting portion 112a1, which is a protrusion, form inclined surfaces corresponding to the tooth surfaces of the drive gear 124, and the drive gear 124 is fitted into the fitting portion 112a1, which is a protrusion (see fig. 1 and 2).

In the present embodiment, in a region (as shown in fig. 2) where the element row 112a having the fitting portion 112a1 and the drive gear 124 are fitted to each other, two adjacent teeth of the drive gear 124 are located on opposite sides of the fitting portion 112a1 that is a projection of the corresponding element E1, and two adjacent teeth of the drive gear 124 are arranged between two adjacent fitting portions 112a1 that are two adjacent projections of the element row 112 a.

Taking the three elements E1 of the element row 112a and the teeth T1 to T5 of the drive gear 124 shown in fig. 2 as an example, two adjacent teeth T1 and T2 of the drive gear 124 are located on opposite sides of the fitting portion 112a1, which is a protrusion of the corresponding first element E1, respectively, and two adjacent teeth T2 and T3 of the drive gear 124 are disposed between the two adjacent fitting portions 112a1, which are adjacent protrusions of the first element E1 and the second element E2 in the element row 112a, respectively. Similarly, two adjacent teeth T3, T4 of the driving gear 124 are located on opposite sides of the corresponding protrusion of the second element E1, i.e., the fitting portion 112a1, and two adjacent teeth T4, T5 of the driving gear 124 are correspondingly disposed between the second element E1 in the element row 112a and two adjacent protrusions of the third element E2, i.e., the two adjacent fitting portions 112a 1. With the above arrangement, the driving force of the driving gear 124 can be more reliably transmitted to the element E1 of the element row 112a, but the driving force can be adjusted in practice according to the sizes of the element E1 and the driving gear 124, and the invention is not limited thereto.

In addition, in the slide fastener 100 of the present embodiment, since the one of the element rows 112a is driven from the outside (the right side in fig. 1 and 2) of the fastener chain 110 by using the one driving gear 124, the fitting portion 112a1 may be formed in the element E1 of only one of the element rows 112a in the fastener chain 110, but the fitting portion 112a1 may be formed in both of the elements E1 and E2 of the

element rows

112a and 112b on both sides in the manufacturing, and the present invention is not limited thereto. Further, although the embodiment has been described with the protruding portion as the fitting portion 112a1, the present invention is not limited to a specific configuration of the fitting portion, and may be configured such that the teeth of the drive gear 124 are formed on the element E1. Another embodiment of the fitting portion will be presented later as an explanation.

Fig. 4 is a schematic view of a slide fastener 200 according to a second embodiment of the present invention. Fig. 5 is a partially enlarged schematic view of the slide fastener 200 of fig. 4. Referring to fig. 4 and 5, in the present embodiment, the slide fastener 200 includes a fastener stringer 210 and a slider 220, wherein the fastener stringer 210 has a pair of

element rows

212a and 212b, the right element row 212a has a plurality of elements E3, and the left element row 212b has a plurality of elements E4. The elements E3, E4 of the

element rows

212a, 212b are engaged with each other, wherein fig. 4 and 5 show two elements E3 and three elements E4 as schematic illustrations, but the number of elements E3, E4 can be adjusted as required. The zipper 200 functions and operates in a manner similar to the zipper 100 described above, with the primary difference being the structural composition of the zipper stringer 210 and slider 220.

Specifically, the pull head 220 includes an operating gear 222, a drive gear 224, a base 226, and a connecting gear 228. The connecting gear 228 is fitted between the operating gear 222 and the driving gear 224, that is, the operating gear 222, the connecting gear 228 and the driving gear 224 are sequentially fitted, and the operating gear 222, the driving gear 224 and the connecting gear 228 are provided on the base 226, so that the slider 220 is modularized (as shown in fig. 4). For the description of "modularity" reference is made to the preceding. After the slider 220 is attached to the fastener chain 210, the drive gear 224 is fitted to one of the element rows 212 a. The operation mode of the operation gear 222 may be an operation panel (shown in fig. 11) described later, or may be another operation mode (not shown), and the present invention does not limit the operation mode of the operation gear 222.

Therefore, when the operation gear 222 is rotated clockwise in fig. 4, the connecting gear 228 is rotated counterclockwise, the drive gear 224 is rotated clockwise, the slider 220 moves downward along the fastener chain 210 as a whole, the separating column (shown in fig. 11) provided inside the base 226 passes between the

element rows

212a and 212b, and the

element rows

212a and 212b are opened. On the other hand, when the operation gear 222 is rotated counterclockwise in fig. 4, the connecting gear 228 is rotated clockwise, the drive gear 224 is rotated counterclockwise, and the slider 220 moves upward along the fastener chain 210 as a whole, so that the separating column (shown in fig. 11) provided in the base 226 is retreated between the

element rows

212a and 212b, and the

element rows

212a and 212b are closed.

That is, the slider 220 of the present embodiment further uses the connecting gear 228 in addition to the slider 120 described above. It can be seen that, although the structural composition of the fastener stringer 210 and the slider 220 of the second embodiment is different from that of the first embodiment, the operation and the manner are similar. Further, the second embodiment uses two gears (i.e., the connecting gear 228 and the driving gear 224) having a smaller size, and can reduce the overall size of the slider 220 as compared with the first embodiment using one gear (i.e., the driving gear 124) having a larger size.

In the present embodiment, the elements E3 of at least one element row 212a of the

element rows

212a and 212b have the fitting portions 212a1 formed on the outer side, and the other element row 212b of the

element rows

212a and 212b maintains the original element shape. Further, in the fastener chain 210, the element E3 of the element row 212a and the element E4 of the element row 212b are fitted inside each other, and the fitting portion 212a1 is formed outside the element E3 of the element row 212 a. The operation gear 222 is provided at the center of the fastener chain 210, the connecting gear 228 and the drive gear 224 are provided outside the fastener chain 210 (on the right side in fig. 4), and the drive gear 224 is fitted to the fitting portion 212a1 of the element row 212a in accordance with the element E3, whereby the drive gear 224 and the element E3 of the element row 212a can be more reliably fitted to each other. Thus, by rotating the operating gear 222, the drive gear 224 is rotated by the operating gear 222 through the connecting gear 228, so that the slider 220 moves on the fastener chain 210, thereby opening or closing the

element rows

212a, 212 b.

FIG. 6A is a perspective view of element E3 of FIG. 4. FIG. 6B is a top view of the element E3 of FIG. 6A. Referring to fig. 4 to 6B, in the present embodiment, the fitting portion 212a1 of the element E3 is a recessed portion recessed inward from the outer side of the element E3. The width of the recessed portion, i.e., the fitting portion 212a1 (e.g., the widths W4 and W5 in fig. 6B) is smaller than the width of the other portion of the element E3 (e.g., the width W6 in fig. 6B). More specifically, the width of the recessed portion, i.e., the fitting portion 212a1, decreases from the outside inward, so that the opposite side surfaces 212a2 of the recessed portion, i.e., the fitting portion 212a1, form inclined surfaces corresponding to the tooth surfaces of the drive gear 224, and the drive gear 224 is fitted into the recessed portion, i.e., the fitting portion 212a1 (see fig. 4 and 5).

In the present embodiment, in a region (as shown in fig. 5) where the element row 212a having the fitting portion 212a1 and the drive gear 224 are fitted to each other, two adjacent teeth of the drive gear 224 are located inside the fitting portion 212a1, which is a recessed portion, of the corresponding element E3 and outside the fitting portion 212a1, respectively, and one of the teeth of the drive gear 224 is disposed between two adjacent elements E3 in the element row 212 a.

Taking two elements E3 of the element row 212a and the teeth T6 and T7 of the drive gear 224 shown in fig. 5 as an example, two adjacent teeth T6 and T7 of the drive gear 224 are respectively located inside the recessed portion, i.e., the fitting portion 212a1, of the corresponding first element E3 and outside the recessed portion, i.e., the fitting portion 212a1, and one of the teeth T7 of the drive gear 224 is correspondingly disposed between the adjacent first element E3 and the second element E3 in the element row 212 a. With the above arrangement, the driving force of the driving gear 224 can be more reliably transmitted to the element E3 of the element row 212a, but the driving force can be adjusted in practice according to the sizes of the element E3 and the driving gear 224, and the invention is not limited thereto.

In addition, in the slide fastener 200 of the present embodiment, the element E3 in the one element row 212a is driven from the outside (the right side in fig. 4 and 5) of the fastener chain 210 by using one driving gear 224, and therefore, the fitting portion 212a1 may be formed in the element E3 in only one element row 212a in the fastener chain 210, but the fitting portion 212a1 may be formed in both the elements E3 and E4 in the both

element rows

212a and 212b in the manufacturing, and the present invention is not limited thereto. Further, although the present embodiment has been described with the recessed portion as the fitting portion 212a1, the present invention is not limited to a specific configuration of the fitting portion, and may be configured such that the teeth of the drive gear 224 are formed on the element E3.

That is, in the first embodiment, the fitting portion 112a1 formed on the element E1 of the element row 112a of the fastener chain 110 may be replaced with the recessed portion in the second embodiment, and in the second embodiment, the fitting portion 212a1 formed on the element E3 of the element row 212a of the fastener chain 210 may be replaced with the protruding portion in the first embodiment. Alternatively, the element E1 of the first embodiment and the element E3 of the second embodiment may be fitted with other fitting portions not shown, as long as the elements E1 and E3 are configured to allow the teeth of the drive gears 124 and 224 to be fitted. With the above arrangement, the fitting effect between the teeth of the drive gears 124 and 224 and the fitting portions 112a1 and 212a1 formed outside the elements E1 and E3 of the

element rows

112a and 212a can be enhanced, and the drive force of the drive gears 124 and 224 can be transmitted to the elements E1 and E3 of the

element rows

112a and 212a more reliably.

In the first embodiment, the fitting portion 112a1 (for example, a protrusion portion is used for all of the elements E1 in the element row 112a of the fastener chain 110) having the same configuration is used for each element E1 in the element row 112a of the fastener chain 110, which is advantageous in that the manufacturing process of the fastener chain 110 can be simplified and the drive gear 124 can be smoothly moved on the element row 121 a. Similarly, in the second embodiment, the fitting portions 212a1 (for example, all recessed portions) having the same configuration are used for the elements E3 in the element row 212a of the fastener chain 210, which is advantageous for simplifying the manufacturing process of the fastener chain 210 and for enabling the drive gear 224 to smoothly move over the element row 212 a. However, the elements E1 and E3 in the

element rows

112a and 212a may have different structures depending on the requirements, and the present invention is not limited to the specific structure of the engaging portion.

Fig. 7 is a schematic view of a slide fastener 300 according to a third embodiment of the present invention. Fig. 8 is a partially enlarged schematic view of the slide fastener 300 of fig. 7. Referring to fig. 7 and 8, in the present embodiment, the slide fastener 300 includes a fastener stringer 310 and a slider 320, in which the fastener stringer 310 has a pair of

element rows

312a and 312b, the element row 312a on the right side of the drawing has a plurality of elements E5, and the element row 312b on the left side of the drawing has a plurality of elements E6. The elements E5, E6 of the

element rows

312a, 312b are engaged with each other, and the number of the elements E5, E6 can be adjusted according to the requirement. The zipper 300 functions and operates in a manner similar to the

zippers

100, 200 described above, with the primary difference being the structural composition of the zipper stringer 310 and slider 320.

Specifically, the slider 320 includes an operation gear 322, a drive gear 324, a base 326, a connection gear 328, and an auxiliary gear 329, wherein the operation gear 322, the connection gear 328, and the drive gear 324 are sequentially fitted, the auxiliary gear 329 is provided on the other side of the operation gear 322, and the operation gear 322, the drive gear 324, the connection gear 328, and the auxiliary gear 329 are provided on the base 326, so that the slider 320 is modularized (as shown in fig. 7). For the description of "modularity" reference is made to the preceding. After the slider 320 is attached to the fastener chain 310, the drive gear 324 is fitted to one element row 312b, and the auxiliary gear 329 is fitted to the other element row 312 a.

That is, the auxiliary gear 329 and the drive gear 324 are provided on opposite sides of the fastener chain 310, respectively, and are fitted into the fitting portions 312a1, 312b1 of the corresponding elements E5, E6 of the

element rows

312a, 312b, respectively. Further, the auxiliary gear 329 does not fit into the operation gear 322, but functions as a limit gear. Accordingly, the drive gear 324 is rotated by the operation gear 322 through the connecting gear 328, so that the slider 320 moves on the fastener chain 310, thereby opening or closing the

element rows

312a, 312b, while the auxiliary gear 329 is rotated in accordance with the movement of the slider 320.

In the fastener chain 310, the elements E5 and E6 of the

element rows

312a and 312b on both sides of the

element rows

312a and 312b have engaging portions 312a1 and 312b1 formed on the outer sides, respectively. For the structural composition of the engaging portions 312a1 and 312b1, reference is made to the description of the recessed portion, i.e., the engaging portion 212a1 in the second embodiment, which is not repeated herein. The engaging portions 312a1 and 312b1 formed by the respective elements E5 and E6 of the

element rows

312a and 312b may be constituted by the engaging portion 112a1 as the protruding portion in the first embodiment, or may be constituted by other engaging portions not shown, and the present invention is not limited to the constituent structure of the engaging portions 312a1 and 312b1, and may be constituted so that the teeth of the drive gear 324 and the auxiliary gear 329 are engaged with each other on the elements E5 and E6.

Therefore, when the operation gear 322 is rotated clockwise in fig. 7, the connecting gear 328 rotates counterclockwise, the drive gear 324 rotates clockwise, the slider 320 moves upward along the fastener chain 310 as a whole, the separating column (shown in fig. 11) provided inside the base 326 is retreated between the

element rows

312a and 312b, and the

element rows

312a and 312b are closed. At the same time, the auxiliary gear 329 also rotates counterclockwise as the slider 320 moves upward along the fastener chain 310 as a whole. On the other hand, when the operating gear 322 is rotated counterclockwise in fig. 7, the connecting gear 328 is rotated clockwise, the driving gear 324 is rotated counterclockwise, the slider 320 is moved downward along the fastener chain 310 as a whole, the separating column (shown in fig. 11) provided inside the base 326 passes between the

element rows

312a and 312b, and the

element rows

312a and 312b are opened. At the same time, the auxiliary gear 329 also rotates clockwise as the slider 320 moves downward along the fastener chain 310 as a whole.

That is, in the slider 320 of the present embodiment, the auxiliary gear 329 functioning as the stopper gear is further used in addition to the slider 220 described above. It can be seen that, although the structural composition of the fastener stringer 310 and the slider 320 of the third embodiment is different from that of the first embodiment and the second embodiment, the operation and the operation are similar. Further, the third embodiment uses the auxiliary gear 329 to function as a stopper gear, and can improve stability when the slider 320 moves on the fastener chain 310, compared to the second embodiment.

In detail, in the present embodiment, the operating gear 322 is disposed at the center of the fastener chain 310, the connecting gear 328 and the driving gear 324 are disposed at one side (left side in fig. 7) of the fastener chain 310, and the auxiliary gear 329 is disposed at the other side (right side in fig. 7) of the fastener chain 310. Preferably, the size of the auxiliary gear 329 is equal to that of the driving gear 324, and the auxiliary gear 329 and the driving gear 324 are substantially left-right symmetrical in the extending direction of the zipper chain 310. In this way, the slider 320 can have a substantially bilaterally symmetrical outer shape (for example, the above-described gears are mounted on the bilaterally symmetrical base 326), and the user can rotate the operating gear 322 from the middle of the slider 320 (corresponding to the middle of the fastener chain 310) to move the slider 320 relative to the fastener chain 310.

In addition, in the present embodiment, the auxiliary gear 329 and the driving gear 324 have

parallel portions

329a and 324a, respectively, perpendicular to the extending direction of the fastener chain 310, and the extending lines of the

parallel portions

329a and 324a are parallel to each other. The parallel portion is a portion where the gear is positioned on a horizontal line perpendicular to the extending direction of the fastener chain 310 during the rotation. That is, in the process that the slider 320 moves relative to the fastener chain 310 and the auxiliary gear 329 and the drive gear 324 rotate, the auxiliary gear 329 and the drive gear 324 are positioned on a horizontal line (see a broken line a1) perpendicular to the extending direction of the fastener chain 310 in the current state, i.e., the

parallel portions

329a and 324 a.

For example, in the state shown in fig. 8, the teeth of the auxiliary gear 329 corresponding to the fitting portion 312a1 of the first element E5 can be regarded as the parallel portion 329a of the auxiliary gear 329, and the teeth of the drive gear 324 corresponding to the fitting portion 312b1 of the second element E6 can be regarded as the parallel portion 324a of the drive gear 324. Thus, at different points in time during the rotation of the auxiliary gear 329 and the drive gear 324, the auxiliary gear 329 has different portions of the gear as the parallel portion 329a, and the drive gear 324 has different portions of the gear as the parallel portion 324a, but the auxiliary gear 329 has one portion always positioned on a horizontal line (e.g., a broken line a1) as the parallel portion 329a, and the drive gear 324 has one portion always positioned on a horizontal line (e.g., a broken line a1) as the parallel portion 324 a.

Furthermore, since the present embodiment uses the auxiliary gear 329 and the driving gear 324 having the same size, wherein the driving gear 324 is connected to the operating gear 322 through the connecting gear 328, but the auxiliary gear 329 is not engaged with the operating gear 322, the horizontal position of the auxiliary gear 329 can be adjusted as required as long as it is not engaged with the operating gear 322. Thus, the extension line of the parallel portion 329a of the auxiliary gear 329 and the extension line of the parallel portion 324a of the drive gear 324 are parallel to each other, and preferably coincide with each other (as indicated by the broken line a 1). That is, the horizontal position of the auxiliary gear 329 is the same as the horizontal position of the drive gear 324, a line connecting the center of the auxiliary gear 329 and the center of the drive gear 324 is also parallel to and coincides with the broken line a1, and the parallel portion 329a of the auxiliary gear 329 and the parallel portion 324a of the drive gear 324 are located at the same horizontal position.

With the above arrangement, in the case where the drive gear 324 is rotated by the driving of the operation gear 322 through the connecting gear 328, the drive gear 324 applies a force to the element row 312b from one side (e.g., the left side in fig. 8) of the fastener chain 310. At this time, since the auxiliary gear 329 fitted to the element row 312a is provided on the other side (right side in fig. 8) of the fastener chain 310, the auxiliary gear 329 can urge the element row 312a from the other side (right side in fig. 8) of the fastener chain 310 during rotation.

In this way, in the process of moving the slider 320 along the fastener chain 310, the auxiliary gear 329 and the drive gear 324 are biased substantially in the opposite directions on opposite sides of the fastener chain 310, and the biasing force of the auxiliary gear 329 and the biasing force of the drive gear 324 are at the same horizontal position, so that compared to the second embodiment in which the auxiliary gear 329 is not used, in the third embodiment in which the auxiliary gear 329 is used, the possibility of displacement of the fastener chain 310 due to the biasing force of the drive gear 324 in the horizontal direction can be reduced, that is, the fastener chain 310 can be prevented from being displaced in the horizontal direction in the process of moving the slider 320 along the fastener chain 310. As described above, the third embodiment uses the auxiliary gear 329 to function as a stopper gear, and can improve the stability of the slider 320 when moving on the fastener chain 310, as compared to the second embodiment.

Although the above description is given by taking an embodiment in which the auxiliary gear 329 and the driving gear 324 are symmetrically arranged in a left-right manner and the auxiliary gear 329 and the driving gear 324 have the same horizontal position as each other as an example, in other embodiments not shown, the auxiliary gear 329 and the driving gear 324 may have different sizes and the horizontal positions of the auxiliary gear 329 and the driving gear 324 may be different, and the present invention does not limit the sizes and the horizontal positions of the driving gear 324 and the auxiliary gear 329, which may be adjusted as required.

Fig. 9 is a schematic view of a slide fastener 400 according to a fourth embodiment of the present invention. Fig. 10 is a partially enlarged schematic view of the slide fastener 400 of fig. 9. Referring to fig. 9 and 10, in the present embodiment, the slide fastener 400 includes a fastener stringer 410 and a slider 420, wherein the fastener stringer 410 has a pair of

element rows

412a and 412b, the element row 412a on the right side of the drawing has a plurality of elements E7, and the element row 412b on the left side of the drawing has a plurality of elements E8. The elements E7, E8 of the

element rows

412a, 412b are engaged with each other, and the number of the elements E7, E8 can be adjusted according to the requirement. The zipper 400 functions and operates in a manner similar to the

zippers

100, 200, 300 described above, with the primary difference being the structural composition of the zipper stringer 410 and slider 420.

Specifically, the slider 420 includes an operation gear 422, a drive gear 424, a base 426, a connecting gear 428, and an auxiliary gear 429, wherein the operation gear 422, the connecting gear 428, and the drive gear 424 are sequentially fitted, the auxiliary gear 429 is provided on the other side of the operation gear 422, and the operation gear 422, the drive gear 424, the connecting gear 428, and the auxiliary gear 429 are provided on the base 426, so that the slider 420 is modularized (as shown in fig. 9). For the description of "modularity" reference is made to the preceding. After the slider 420 is attached to the fastener chain 410, the drive gear 424 is fitted to one element row 412b, and the auxiliary gear 429 is fitted to the other element row 412 a.

That is, the elements E7 and E8 of the

element rows

412a and 412b on both sides of the

element rows

412a and 412b have fitting portions 412a1 and 412b1 formed on the outer sides, respectively, and the auxiliary gear 429 and the drive gear 324 are provided on both opposite sides of the fastener chain 410 and are fitted into the fitting portions 412a1 and 412b1 of the corresponding elements E7 and E8 of the

element rows

412a and 412b, respectively. Therefore, with regard to the structural composition of the

element rows

412a, 412b, the elements E7, E8, and the engaging portions 412a1, 412b1 of the fastener chain 410, reference is made to the description of the

element rows

312a, 312b, the elements E5, E6, and the engaging portions 312a1, 312b1 of the fastener chain 310 in the third embodiment. Furthermore, the structural components of the operating gear 422, the connecting gear 428 and the driving gear 424 can also refer to the descriptions of the operating gear 322, the connecting gear 328 and the driving gear 324 in the third embodiment, which are not repeated herein.

Further, the auxiliary gear 429 is fitted to the operation gear 422 and functions as a drive gear. Accordingly, the drive gear 424 is driven by the operating gear 422 through the connecting gear 428 to rotate, and the auxiliary gear 429 functioning as a drive gear is also driven by the operating gear 422 to rotate, so that the slider 420 moves on the fastener chain 410, thereby opening or closing the

element rows

412a and 412 b.

Therefore, when the operation gear 422 is rotated clockwise in fig. 9, the connecting gear 428 is rotated counterclockwise, the drive gear 424 is rotated clockwise, the auxiliary gear 429 is rotated counterclockwise, and the slider 420 is moved upward along the fastener chain 410, so that the separating columns (shown in fig. 11) provided in the base 426 are retreated between the

element rows

412a and 412b, and the

element rows

412a and 412b are closed. On the other hand, when the operating gear 422 is rotated counterclockwise in fig. 9, the connecting gear 428 is rotated clockwise, the driving gear 424 is rotated counterclockwise, the auxiliary gear 429 is rotated clockwise, and the slider 420 is moved downward along the fastener chain 410 as a whole, so that the separating column (shown in fig. 11) provided inside the base 426 passes between the

element rows

412a and 412b, and the

element rows

412a and 412b are opened.

That is, in the slider 420 of the present embodiment, in addition to the slider 320 described above, the auxiliary gear 429 is further moved upward and fitted to the operation gear 422, and the auxiliary gear 429 functions as a drive gear. It can be seen that, although the structural composition of the fastener stringer 410 and the slider 420 of the fourth embodiment is different from that of the first to third embodiments, the operation and the manner are similar. Further, the fourth embodiment uses the auxiliary gear 429 as a drive gear, and can improve the stability of the slider 420 when moving on the fastener chain 410 as compared with the second embodiment, and can improve the driving effect of the slider 420 on the fastener chain 410 as compared with the third embodiment.

In detail, in the present embodiment, the operating gear 422 is provided at the center of the fastener chain 410, the connecting gear 428 and the driving gear 424 are provided at one side (left side in fig. 9) of the fastener chain 410, and the auxiliary gear 429 is provided at the other side (right side in fig. 9) of the fastener chain 410. Preferably, the size of the auxiliary gear 429 is equal to that of the driving gear 424, and the auxiliary gear 429 and the driving gear 424 are substantially left-right symmetrical along the extending direction of the zipper chain 410. In this way, the slider 420 can have a substantially bilaterally symmetric outer shape (for example, the above-described gears are carried by the bilaterally symmetric base 426), and the user can rotate the operating gear 422 from the middle of the slider 420 (corresponding to the middle of the fastener chain 410) to move the slider 420 relative to the fastener chain 410.

In addition, in the present embodiment, the auxiliary gear 429 and the drive gear 424 have

parallel portions

429a and 424a, respectively, which are perpendicular to the extending direction of the fastener chain 410, and the extending lines of the

parallel portions

429a and 424a are parallel to each other. The parallel portion is a portion where the gear is positioned on a horizontal line perpendicular to the extending direction of the fastener chain 410 during the rotation. That is, in the process that the slider 420 moves relative to the fastener chain 410 and the auxiliary gear 429 and the drive gear 424 rotate, a portion of the auxiliary gear 429 which is located on a horizontal line (for example, a broken line a2) perpendicular to the extending direction of the fastener chain 410 in the current state is regarded as a parallel portion 429a, and a portion of the drive gear 424 which is located on a horizontal line (for example, a broken line A3) perpendicular to the extending direction of the fastener chain 410 in the current state is regarded as a parallel portion 424 a.

For example, in the state shown in fig. 10, the tooth space between two adjacent teeth corresponding to the first element E7 in the auxiliary gear 429 can be regarded as the parallel portion 429a of the auxiliary gear 429, and the teeth corresponding to the fitting portion 412b1 of the second element E8 in the drive gear 424 can be regarded as the parallel portion 424a of the drive gear 424. Thus, at different points in time during the rotation of the auxiliary gear 429 and the drive gear 424, the auxiliary gear 429 has different portions on the gear as the parallel portions 429a, and the drive gear 424 has different portions on the gear as the parallel portions 424a, but one of the portions of the auxiliary gear 429 is always located on a horizontal line (e.g., a broken line a2) as the parallel portion 429a, and one of the portions of the drive gear 424 is always located on a horizontal line (e.g., a broken line A3) as the parallel portion 424 a.

Further, since the present embodiment uses the auxiliary gear 429 and the drive gear 424 having the same size, and the auxiliary gear 429 moves upward and is fitted to the operating gear 422, that is, the auxiliary gear 429 is directly fitted to the operating gear 422, and the drive gear 424 is connected to the operating gear 422 through the connecting gear 428, the extension line of the parallel portion 429a of the auxiliary gear 429 (the broken line a2 shown in fig. 10) and the extension line of the parallel portion 424a of the drive gear 424 (the broken line A3 shown in fig. 10) are parallel to each other, and preferably, are offset from each other. That is, the horizontal position of the auxiliary gear 429 is different from the horizontal position of the drive gear 424, and the parallel portion 429a of the auxiliary gear 429 is slightly offset from the parallel portion 424a of the drive gear 424 in the horizontal position.

With the above arrangement, in the case where the drive gear 424 is driven to rotate by the operating gear 422 through the connecting gear 428, the drive gear 424 urges the element row 412b from one side (e.g., the left side in fig. 10) of the fastener chain 410. At this time, since the auxiliary gear 429 is similarly driven to rotate by the operation gear 422, the auxiliary gear 429 can urge the element row 412a from the other side (right side in fig. 10) of the fastener chain 410.

As described above, since the auxiliary gear 429 and the drive gear 424 are biased substantially in opposite directions on opposite sides of the fastener chain 410 while the slider 420 moves along the fastener chain 410, even if the biasing force of the auxiliary gear 429 and the biasing force of the drive gear 424 are slightly offset in the horizontal position in the fourth embodiment using the auxiliary gear 429, the possibility of displacement of the fastener chain 410 due to the biasing force of the drive gear 424 in the horizontal direction can be reduced, and the stability of the slider 420 when moving on the fastener chain 410 can be improved, as compared with the second embodiment not using the auxiliary gear 429.

Since the auxiliary gear 429 is fitted to the operating gear 422 and functions as a drive gear, the drive gear 424 and the auxiliary gear 429 can transmit the driving force generated when the operating gear 422 rotates to the

element rows

412a and 412b of the fastener chain 410. That is, compared to the first to third embodiments in which one drive gear is used to drive the fastener chain, the fourth embodiment uses two drive gears (i.e., the drive gear 424 and the auxiliary gear 429 functioning as a drive gear) to drive the fastener chain 410, and can improve the smoothness of movement of the slider 420 along the fastener chain 410.

Although the above description is given by taking as an example an embodiment in which the auxiliary gear 429 and the drive gear 424 having the same size are arranged in a substantially bilaterally symmetrical manner, in other embodiments not shown, the auxiliary gear 429 and the drive gear 424 having different sizes may be used, and in the case of using the auxiliary gear 429 and the drive gear 424 having different sizes, the horizontal positions of the auxiliary gear 429 and the drive gear 424 may be the same or different, and the present invention does not limit the sizes and the horizontal positions of the auxiliary gear 429 and the drive gear 424, and may be adjusted as required.

FIG. 11 is an exploded schematic view of the pull head 420 of FIG. 9. Referring to fig. 11, in the present embodiment, the base 426 of the slider 420 includes a base body 426a and a base upper cover 426 b. One side of the base body 426a is formed with a plurality of notches 426c and a plurality of shafts 426d positioned within the plurality of notches 426 c. The aforementioned operating gear 422, driving gear 424, connecting gear 428 and auxiliary gear 429 are respectively installed in the corresponding recesses 426c and connected to the corresponding shafts 426 d. The base upper cover 426b is mounted on the base body 426a and covers the operating gear 422, the driving gear 424, the connecting gear 428, and the auxiliary gear 429. In this way, the operation gear 422, the drive gear 424, the connecting gear 428, and the auxiliary gear 429 are fixed in relative positions on the base body 426a, are rotatable about the corresponding shafts 426d with respect to the base body 426a, and are hidden inside the base 426.

Further, the other side of the base body 426a is formed with a space 426e through which the fastener chain 410 (shown in fig. 9) passes and a separation column 426f at one end of the space 426 e. When the fastener stringer 410 is attached to the slider 420, the fastener stringer 410 passes through the space 426e of the base 426, and the auxiliary gear 429 and the drive gear 424 are fitted to the

element rows

412a and 412b (shown in fig. 9) of the fastener stringer 410 in the base 426. In this way, the slider 420 is moved to cause the separation column 426f provided in the base 426 to pass between the

element rows

412a and 412b or to retreat between the

element rows

412a and 412b, thereby opening or closing the

element rows

412a and 412 b.

In addition, in the present embodiment, the slide fastener 400 further includes an operation panel 430. The protruding shaft 422a of the operating gear 422 protrudes through an opening of the base upper cover 426b, and the operating disk 430 is disposed on the base 426 and connected to the protruding shaft 422a of the operating gear 422, so that the operating disk 430 and the operating gear 422 can be rotated in synchronization (i.e., simultaneously rotated in the clockwise direction or simultaneously rotated in the counterclockwise direction). Thus, the operating gear 422 is driven to rotate synchronously by rotating the operating dial 430, and the drive gear 424 and the auxiliary gear 429 functioning as the drive gear are driven to rotate by the operating gear 422, so that the slider 420 moves on the fastener chain 410, thereby opening or closing the

element rows

412a and 412 b. By the operation panel 430, the user can rotate the operation gear 422 in an easier manner, that is, the slide fastener 400 has an easy operation manner.

Although fig. 11 illustrates the fourth embodiment of the slide fastener 400 shown in fig. 9 and 10, the structural configuration of the base 426 and the use of the operating plate 430 can be applied to the

slide fasteners

100, 200, 300 of the first to third embodiments. That is, the base 426 shown in fig. 11 can be used for each gear mounted in the

sliders

120, 220, 330 according to the first to third embodiments, and the number, size and position of the notches and the shafts in the base 426 can be adjusted according to the number, size and position of the gears. The operation gears 122, 222, and 322 according to the first to third embodiments may be operated using the operation panel 430 shown in fig. 11. In other embodiments, not shown, where the operating gear is omitted, the operating disk can be connected to a drive gear, which in turn is driven to rotate by the operating disk. Alternatively, in other embodiments not shown, other operating members may be used to operate the operating gear. The present invention does not limit the setting of the operation panel and the operation mode of the operation gear.

Fig. 12 is an exploded cross-sectional view of an operating panel 430 and a clutch 450 according to another embodiment of the present invention. Fig. 13A and 13B are schematic cross-sectional views of the clutch 450 of fig. 12 mounted to the slider 420 in different operating conditions. Referring to fig. 11 and 12, taking the fourth embodiment as an example, the zipper 400 (shown in fig. 9-10) further includes a bracket 440 and a clutch 450. The holder 440 is provided on the base 426, and for example, as shown in fig. 12, the holder 440 and the base upper cover 426b may be provided integrally or may be separately manufactured. The clutch 450 is provided on the operating gear 422 and is mounted inside the bracket 440, and the operating gear 422 connected to the clutch 450 is mounted between the base upper cover 426b and the base body 426a (shown in fig. 11).

As such, referring to fig. 12-13B, after the operating plate 430, the clutch 450, and the base 426 of the slider 420 are mounted to the bracket 440, the zipper chain 410 is passed through the slider 420 such that the pair of element rows 412a, 412B of the zipper chain 410 are located inside the base 426, and the zipper strip 414 to which the element rows 412a, 412B are attached and the web 402 to which the zipper chain 410 is attached extend outwardly from opposite sides of the base 426. In this manner, the slider 420, and the operating plate 430, bracket 440 and clutch 450 mounted on the base 426 of the slider 420 can move with the slider 420 on the zipper stringer 410 and web 402.

Further, the clutch 450 is, for example, a dog clutch (dog clutch), so that the surface of the clutch 450 is formed with the tooth surface 450a and the surface of the operating plate 430 is also formed with the tooth surface 430 a. The clutch 450 is disposed inside the base 426 with the tooth surface 450a facing the operating plate 430. The operating plate 430 is disposed on the bracket 440 with the tooth surface 430a facing the clutch 450. That is, the tooth face 450a of the clutch 450 and the tooth face 430a of the operating plate 430 face each other. The operation panel 430 is movable relative to the base 426 in the vertical direction on the holder 440, and is engaged with the clutch 450 by being pressed, or disengaged from the clutch 450 by being pulled.

At this time, when the operation dial 430 is fitted to the clutch 450 by being pressed, as shown in fig. 13A, the tooth surface 430a of the operation dial 430 and the tooth surface 450a of the clutch 450 are fitted to each other, and the operation dial 430, the clutch 450, and the operation gear 422 can be rotated in synchronization (that is, simultaneously rotated in the clockwise direction or simultaneously rotated in the counterclockwise direction). Thus, by rotating the operating plate 430 to drive the clutch 450 to rotate in synchronization with the operating gear 422, the drive gear 424 (shown in fig. 9 to 11) is driven to rotate by the operating gear 422, so that the slider 420 moves on the fastener chain 410, thereby opening or closing the

element rows

412a, 412 b.

On the other hand, when the operation plate 430 is pulled up and separated from the clutch 450, as shown in fig. 13B, the tooth surface 430a of the operation plate 430 is separated from the tooth surface 450a of the clutch 450, and the operation plate 430, the clutch 450, and the operation gear 422 cannot rotate in synchronization. That is, when the operation panel 430 is pulled up and separated from the clutch 450, even if the operator rotates the operation panel 430, the rotation of the operation panel 430 is not transmitted to the operation gear 422 via the clutch 450, and therefore the operation gear 422 does not rotate, and the drive gear 424 is not driven by the operation gear 422 to rotate, and the operation panel 430 is in a freely rotatable state.

In this way, in the present embodiment, the user can push the operation panel 430 or pull up the operation panel 430 as desired. If the operation dial 430 is pulled up to separate the operation dial 430 from the clutch 450, the user cannot operate the slider 420 by the operation dial 430, and if the operation dial 430 is pressed to be fitted to the clutch 450, the user can operate the slider 420 by the operation dial 430. Accordingly, the user can pull up the operation plate 430 after moving the slider 420 to a desired position along the fastener stringer 410, so that the slider 420 is not driven by the operation plate 430 to move and is fixed to a corresponding position on the fastener stringer 410. Therefore, it is possible to prevent the operation dial 430 from undesirably moving the slider 420 due to unintended rotation.

Although fig. 12, 13A and 13B illustrate the slide fastener 400 of the fourth embodiment shown in fig. 9 to 11, the use of the operation panel 430, the bracket 440 and the clutch 450 can be applied to the

slide fasteners

100, 200 and 300 of the first to third embodiments. That is, the operating gears 122, 222, 322 according to the first to third embodiments may be operated by using the operating panel 430 shown in fig. 12, 13A, and 13B, and the carrier 440 and the clutch 450 shown in fig. 12, 13A, and 13B are provided. However, in other embodiments not shown, the operating panel, the bracket and the clutch having other structural components may be adopted, and the present invention is not limited to the structural components and arrangement of the operating panel, the bracket and the clutch.

Fig. 14 is an exploded view of a slide fastener 400a according to another embodiment of the present invention. Referring to fig. 14, in the present embodiment, the slider 420 adopted by the zipper 400a includes an operating gear 422, a driving gear 424, a base 426 (including a base body 426a, a base upper cover 426b, a plurality of notches 426c, a plurality of shafts 426d, a space 426e and a separating column 426f), a connecting gear 428 and an auxiliary gear 429, which are similar to the slider 420 of fig. 11, and the zipper chain 410 (shown in fig. 9) can be installed as the slider 420 of fig. 11, so that reference can be made to the above description for specific embodiments of the zipper chain 410, the slider 420, the base 426, and the operating gear 422, the driving gear 424, the connecting gear 428 and the auxiliary gear 429, and further description thereof is omitted.

Referring to fig. 14, in the present embodiment, the zipper 400a also includes an operation plate 430, but instead of the bracket 440 and the clutch 450 shown in fig. 11, the embodiment of fig. 14 is further provided with a button 460, a pair of pressing members 470, and a clutch 480. The button 460 is disposed on the operation panel 430, the pair of pressing members 470 are disposed on left and right sides of the operation panel 430, and the clutch 480 is disposed in the operation panel 430 and connected to the button 460. Subsequently, the operating disk 430, the push button 460, and the clutch 480 are disposed on the base 426 and connected to the protruding shaft 422a of the operating gear 422, so that the operating disk 430 and the operating gear 422 can be rotated in synchronization (i.e., simultaneously rotated in the clockwise direction, or simultaneously rotated in the counterclockwise direction). In this way, by providing the operation dial 430, the user can rotate the operation gear 422 in a simpler manner, that is, the slide fastener 400a has a simple operation manner, and the slide fastener 400a can adopt the slide fastener stringer 410 shown in fig. 9 and 10 and the slider 420 shown in fig. 11 or 14, but not limited thereto.

Fig. 15 is an exploded cross-sectional view of the operating panel 430, the button 460, the pair of pressing members 470, and the clutch 480 of fig. 14. Fig. 16A and 16B are schematic cross-sectional views of the operation panel 430, the button 460, the pair of pressing members 470, and the clutch 480 of fig. 15, which are attached to the slider 420, and then, are operated in different states. Referring to fig. 14 to 16B, in the present embodiment, the operation plate 430 has a recess 430B, a receiving portion 430c, a pair of left and right channels 430d, and a slope 430e formed at an edge of the recess 430B. The button 460 is mounted on the operation panel 430 at the recess 430b of the operation panel 430. The clutch 480 is provided in the accommodating portion 430c, and includes a body 480a, a pair of left and right elastic arms 480b extending from the body 480a, and a pair of inclined surfaces 480c formed at the front ends of the pair of elastic arms 480 b. The pair of pressing pieces 470 are disposed in the pair of passages 430d of the operating panel 430, and have a pair of tip portions 470a formed at the front end. Through assembly, the button 460 located at the recess 430b is coupled with the body 480a of the clutch 480 located at the accommodating portion 430c, and the pair of pushers 470 located in the pair of passages 430d face the pair of inclined surfaces 480c of the pair of elastic arms 480b of the clutch 480 located at the accommodating portion 430c with the tip end portions 470 a. Further, the clutch 480 is movable in the vertical direction on the operation panel 430 with respect to the base 426 so as to be fitted to the operation gear 422 in the downward direction or separated from the operation gear 422 in the upward direction, and the movement can be performed via the push button 460 and the pair of pressing pieces 470.

In detail, since the clutch 480 is, for example, a dog clutch (dog clutch), a tooth surface 480a (shown in fig. 15) is formed on a surface of the clutch 480, and a tooth surface 422b (shown in fig. 14) is also formed on a surface of the protruding shaft 422a of the operating gear 422. The clutch 480 is provided in the accommodating portion 430c of the operating plate 430 with the tooth surface 480a facing the operating gear 422. The operating gear 422 is disposed in the base 426 with the tooth surface 422b facing the clutch 480. That is, the tooth surface 480a of the clutch 480 and the tooth surface 422b of the operating gear 422 face each other. The clutch 480 is movable relative to the base 426 in the vertical direction on the operation panel 430, and is fitted to the operation gear 422 downward or separated from the operation gear 422 upward.

Referring to fig. 16A, when the button 460 is pressed, the tooth surface 480a of the clutch 480 and the tooth surface 422b of the operating gear 422 are engaged with each other, and the operating plate 430, the clutch 450, and the operating gear 422 can be rotated synchronously (i.e., simultaneously rotated in the clockwise direction or simultaneously rotated in the counterclockwise direction). Thus, by rotating the operating plate 430 to drive the clutch 480 to rotate in synchronization with the operating gear 422, the drive gear 424 (shown in fig. 9 to 11) is driven to rotate by the operating gear 422, so that the slider 420 moves on the fastener chain 410, thereby opening or closing the

element rows

412a, 412 b. The slider 420, and the operating plate 430, the button 460, the pair of pressing pieces 470, and the clutch 480 mounted on the base 426 of the slider 420 are movable on the fastener stringer 410 and the web 402 (shown in fig. 13A and 13B) along with the slider 420.

When the pair of pressing members 470 are pressed from the left and right sides, that is, when the state of fig. 16A is changed to the state of fig. 16B, the pair of pressing members 470 move into the accommodating portions 430c in the pair of passages 430d, and push the pair of inclined surfaces 480c of the pair of elastic arms 480B of the clutch 480 with the pair of tip end portions 470a, and the pushed pair of inclined surfaces 480c convert the amount of movement in the horizontal direction into the amount of movement in the vertical direction, so that the clutch 480 is moved upward away from the operating gear 422. At this time, the tooth surface 480a of the clutch 480 is separated from the tooth surface 422b of the operating gear 422, the operating gear 422 is not driven by the rotation of the operating plate 430, and the operating plate 430, the clutch 480, and the operating gear 422 cannot rotate synchronously. That is, after the clutch 480 is separated upward from the operating gear 422 by pressing the pair of pressing members 470, even if the operator rotates the operating disk 430, the rotation of the operating disk 430 is not transmitted to the operating gear 422 via the clutch 480, and therefore the operating gear 422 does not rotate, and the drive gear 424 is not driven to rotate by the operating gear 422, and the operating disk 430 is in a freely rotatable state. At this time, the clutch 480 is moved upward away from the operating gear 422, and thus the button 460 connected to the clutch 480 protrudes from the operating plate 430 (as shown in fig. 16B).

In contrast, in the case of pressing the button 460 downward, that is, in the case of shifting from the state of fig. 16B to the state of fig. 16A, the protruding button 460 moves downward toward the base 426 simultaneously with the clutch 480 connected to the button 460, and the pair of inclined surfaces 480c of the pair of elastic arms 480B of the clutch 480 move along the inclined surfaces 430e formed at the edges of the notch 430B on the operating plate 430, so that the pair of elastic arms 480B are compressed to allow the clutch 480 to be pressed downward by the button 460. Subsequently, after the pair of inclined surfaces 480c of the pair of elastic arms 480b of the clutch 480 are separated from the inclined surfaces 430e of the operating plate 430 and enter the accommodating portion 430c, the pair of inclined surfaces 480c of the pair of elastic arms 480b of the clutch 480 move along the edges of the pair of tip end portions 470a of the pair of pressing pieces 470 while the clutch 480 continues to move downward, and the pair of pressing pieces 470 are pushed to move to the left and right sides by the elastic restoring force of the pair of elastic arms 480b and protrude to the left and right sides of the operating plate 430 (as shown in fig. 16A). At this time, the clutch 480 is fitted downward to the operating gear 422, and the operating plate 430, the clutch 450, and the operating gear 422 are returned to a state in which they can rotate in synchronization.

As described above, in the present embodiment, the user can press the button 460 to fit the clutch 480 downward to the operating gear 422 or press the pair of pressing members 470 to separate the clutch 480 upward from the operating gear 422 as required. When the pair of pressing members 470 are pressed to separate the clutch 480 from the operating gear 422, the user cannot operate the slider 420 by the operating plate 430, and when the button 460 is pressed to fit the clutch 480 into the operating gear 422, the user can operate the slider 420 by the operating plate 430. Accordingly, the user can press the pair of pressing pieces 470 after moving the slider 420 to a desired position along the fastener stringer 410, so that the slider 420 is fixed to a corresponding position on the fastener stringer 410 without being driven by the operation plate 430 to move. Therefore, it is possible to prevent the operation dial 430 from undesirably moving the slider 420 due to unintended rotation.

Although fig. 14, 15, 16A, and 16B illustrate a slide fastener 400a as a modification of the slide fastener 400 of the fourth embodiment shown in fig. 9 to 11, the present invention is also applicable to the

slide fasteners

100, 200, and 300 of the first to third embodiments with respect to the use of the operation panel 430, the button 460, the pair of pressing pieces 470, and the clutch 480. That is, the operation gears 122, 222, and 322 according to the first to third embodiments may be operated using the operation panel 430 shown in fig. 14, and may be provided with the push button 460, the pair of pressing members 470, and the clutch 480 shown in fig. 15, 16A, and 16B. However, in other embodiments not shown, an operation panel, a button, a pressing member, and a clutch having other structural configurations may be adopted, and the present invention is not limited to the structural configurations and the arrangement of the operation panel, the button, the pressing member, and the clutch.

In summary, the present invention provides a slide fastener including a fastener stringer and a slider. The fastener chain has a pair of element rows, and each element of at least one element row of the element rows has an engaging portion formed on an outer side. The slider is provided on the fastener chain and includes a drive gear to be fitted to the fitting portion of the fastener element. Thus, the drive gear is driven to rotate, and is further reliably fitted to the corresponding fitting portion on the element row, so that the slider moves on the fastener chain, thereby opening or closing the element row. In other words, since the engaging portion for engaging with the drive gear is provided on the element of the element row, the driving force generated by the rotation of the drive gear can be more reliably transmitted to the element row, and the process of rotating the drive gear on the element row is further stabilized. In addition, the slider can also use components such as an operating gear, a connecting gear, an auxiliary gear (functioning as a limit gear or a driving gear) and the like according to requirements, namely, a plurality of gears are used according to requirements, and the size and the horizontal position of the gears are properly adjusted, so that the process that the slider moves on the zipper chain by the driving of the gears can be smoother. In addition, the zipper can select the protruding part or the recessed part as the embedding part according to the requirement, and components such as an operating panel, a bracket, a clutch and the like can be used according to the requirement, so that the using effect of the zipper is improved. Therefore, the zipper of the invention can drive the slider to move along the zipper chain in a rotating mode and has good operation stability.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A zipper (100, 200, 300, 400a) comprising:

a fastener chain (110, 210, 310, 410) having a pair of element rows (112a, 112b, 212a, 212b, 312a, 312b, 412a, 412b), wherein each of the elements (E1, E3, E5, E7) of at least one element row (112a, 212a, 312b, 412a) of the element rows (112a, 112b, 212a, 212b, 312a, 312b) has an engaging portion (112a1, 212a1, 312a1, 412a1) formed on the outer side; and

sliders (120, 220, 320, 420) provided in the fastener stringers (110, 210, 310, 410) and including drive gears (124, 224, 324, 424) fitted to the fitting portions (112a1, 212a1, 312a1, 412a1) of the elements (E1, E3, E5, E7),

the drive gear (124, 224, 324, 424) is driven to rotate so that the slider (120, 220, 320, 420) moves on the fastener chain (110, 210, 310, 410), thereby opening or closing the element rows (112a, 112b, 212a, 212b, 312a, 312b, 412a, 412 b).

2. Zipper (100, 200, 300, 400a) according to claim 1, characterized in that the slider (120, 220, 320, 420) further comprises an operating gear (122, 222, 322, 422),

the operating gear (122, 222, 322, 422) is arranged on the zipper chain (110, 210, 310, 410) and is embedded in the driving gear (124, 224, 324, 424),

by rotating the operating gear (122, 222, 322, 422), the driving gear (124, 224, 324, 424) is rotated by the driving of the operating gear (122, 222, 322, 422), so that the slider (120, 220, 320, 420) moves on the fastener chain (110, 210, 310, 410), thereby opening or closing the fastener element row (112a, 112b, 212a, 212b, 312a, 312b, 412a, 412 b).

3. Zipper (100, 200, 300, 400a) according to claim 2, characterized in that the operating gear (122, 222, 322, 422) is provided in the center of the zipper chain (110, 210, 310, 410),

the drive gears (124, 224, 324, 424) are provided outside the fastener chains (110, 210, 310, 410), and are fitted to the fitting portions (112a1, 212a1, 312a1, 412a1) from outside of the elements (E1, E3, E5, E7) having the fitting portions (112a1, 212a1, 312a1, 412a 1).

4. The zipper (200, 300, 400a) of claim 2, wherein the pull head (220, 320, 420) further comprises a connecting gear (228, 328, 428),

the connecting gear (228, 328, 428) is fitted between the operating gear (222, 322, 422) and the driving gear (224, 324, 424).

5. The slide fastener (300, 400a) according to claim 2, wherein each element (E5, E6, E7, E8) of the element rows (312a, 312b, 412a, 412b) on both sides among the element rows (312a, 312b, 412a, 412b) has the fitting portion (312a1, 312b1, 412a1, 412b1) formed on the outer side, respectively,

the slider (320, 420) further comprises an auxiliary gear (329, 429),

the auxiliary gears (329, 429) and the driving gears (324, 424) are respectively provided on opposite sides of the fastener chains (310, 410), and are respectively fitted to the fitting portions (312a1, 312b1, 412a1, 412b1) of the corresponding elements (E5, E6, E7, E8) in the element rows (312a, 312b, 412a, 412 b).

6. The slide fastener (300) according to claim 5, wherein the auxiliary gear (329) functions as a stopper gear without being fitted to the operating gear (322),

the drive gear (324) is driven by the operation gear (322) to rotate, whereby the element rows (312a, 312b) are opened or closed, and the auxiliary gear (329) functioning as a stopper gear rotates in accordance with the movement of the slider (320).

7. The slide fastener (400, 400a) according to claim 5, wherein the auxiliary gear (429) is fitted to the operating gear (422) and functions as a driving gear,

the drive gear (424) and the auxiliary gear (429) functioning as a drive gear are rotated by the operation gear (422) at the same time, whereby the element rows (412a, 412b) are opened or closed.

8. Zipper (300, 400a) according to claim 5, characterized in that the auxiliary gear (329, 429) has dimensions equal to those of the driving gear (324, 424).

9. The zipper (300, 400a) according to claim 5, wherein the auxiliary gear (329, 429) and the driving gear (324, 424) respectively have parallel portions (329a, 324a, 429a, 424a) perpendicular to the extending direction of the zipper chain (310, 410), and the extending lines of the parallel portions (329a, 324a, 429a, 424a) are parallel to each other.

10. The zipper (300) according to claim 9, wherein an extension line of the parallel portion (329a) of the auxiliary gear (329) and an extension line of the parallel portion (324a) of the driving gear (324) coincide with each other.

11. A zip fastener (400, 400a) as claimed in claim 9, characterised in that the extension line of the parallel portion (429a) of the auxiliary gear (429) and the extension line of the parallel portion (424a) of the driving gear (424) are offset from each other.

12. The slide fastener (100) according to claim 1, wherein the fitting portion (112a1) of the element (E1) is a protruding portion protruding outward from the element (E1), the width (W1, W2) of the protruding portion is smaller than the width (W3) of the other portion of the element (E1), and the drive gear (124) is fitted to the protruding portion.

13. A slide fastener (100) as claimed in claim 12, wherein the width of the projection decreases towards the outer side, such that opposite side faces (112a2) of the projection are bevelled to correspond to the tooth flanks of the driving gear (124).

14. The slide fastener (100) according to claim 12, wherein in a region where the element row (112a) having the fitting portion (112a1) and the drive gear (124) are fitted to each other, adjacent two teeth (T1, T2, T3, T4) of the drive gear (124) are located on opposite sides of the protruding portion of the corresponding element (E1), respectively.

15. The slide fastener (100) according to claim 12, wherein in a region where the element row (112a) having the fitting portion (112a1) and the drive gear (124) are fitted to each other, adjacent two teeth (T2, T3, T4, T5) of the drive gear (124) are disposed between adjacent two protrusions in the element row (112a) in correspondence.

16. The slide fastener (200) according to claim 1, wherein the fitting portion (212a1) of the element (E3) is a recessed portion recessed inward from an outer side of the element (E3), a width (W4, W5) of the recessed portion is smaller than a width (W6) of the other portion of the element (E3), and the drive gear (224) is fitted in the recessed portion.

17. A zipper (200) according to claim 16, wherein the width of the depression decreases from the outer side inwards, such that opposite side faces (212a2) of the depression are bevelled to correspond to the tooth flanks of the driving gear (224).

18. The slide fastener (200) as claimed in claim 16, wherein in a region where the element row (212a) having the fitting portion (212a1) and the drive gear (224) are fitted to each other, adjacent two teeth (T6, T7) of the drive gear (224) are located inside and outside the recessed portion of the corresponding element (E3), respectively.

19. The slide fastener (200) according to claim 16, wherein one tooth (T7) of the drive gear (224) is disposed between two adjacent elements (E3) in the element row (212a) in a region where the element row (212a) having the fitting portion (212a1) and the drive gear (224) are fitted to each other.

20. The zipper (100, 200, 300, 400a) of claim 2, wherein the pull head (120, 220, 320, 420) further comprises a base (126, 226, 326, 426),

the operating gear (122, 222, 322, 422) and the driving gear (124, 224, 324, 424) are arranged on the base (126, 226, 326, 426) to make the slider (120, 220, 320, 420) modularized,

the zipper chain (110, 210, 310, 410) penetrates the base (126, 226, 326, 426) to be engaged with the driving gear (124, 224, 324, 424).

21. The zipper (400, 400a) of claim 20 further comprising an operating dial (430),

the operation plate (430) is disposed on the base (426) and connected to the operation gear (422),

the operating gear (422) is driven to rotate synchronously by rotating the operating disc (430), and the driving gear (424) is driven to rotate by the operating gear (422), so that the slider (420) moves on the fastener chain (410), thereby opening or closing the element rows (412a, 412 b).

22. The zipper (400) of claim 21 further comprising a bracket (440) and a clutch (450),

the bracket (440) is arranged on the base (426),

the clutch (450) is disposed on the operating gear (422),

the operation panel (430) is provided on the holder (440), is movable relative to the base (426) in a vertical direction on the holder (440), and is fitted to the clutch (450) by being pressed or separated from the clutch (450) by being pulled,

in a state where the operation plate (430) is fitted to the clutch (450), the clutch (450) is driven to rotate in synchronization with the operation gear (422) by rotating the operation plate (430), the drive gear (424) is driven to rotate by the operation gear (422), so that the slider (420) moves on the fastener chain (410), thereby opening or closing the element rows (412a, 412b),

rotation of the operating disk (430) does not drive the operating gear (422) with the operating disk (430) off the clutch (450).

23. The zipper (400a) of claim 21 further comprising a button (460), a pair of pushers (470) and a clutch (480),

the button (460) is arranged on the operation plate (430),

the pair of pressing pieces (470) are disposed at left and right sides of the operation panel (430),

the clutch (480) is arranged in the operating plate (430) and connected with the button (460),

the operating plate (430), the button (460), and the clutch (480) are disposed on the base (426),

the clutch (480) is capable of moving on the operation panel (430) in a vertical direction relative to the base (426) so as to be fitted to the operation gear (422) downward or separated from the operation gear (422) upward,

when the button (460) is pressed downward and the clutch (480) is fitted downward to the operating gear (422), the clutch (480) is driven to rotate in synchronization with the operating gear (422) by rotating the operating plate (430), and the drive gear (424) is driven to rotate by the operating gear (422) so that the slider (420) moves on the fastener chain (410), thereby opening or closing the element rows (412a, 412b),

when the pair of pressing members (470) is pressed from both the left and right sides to separate the clutch (480) upward from the operating gear (422), the operating gear (422) is not driven by the rotation of the operating disk (430).

24. The zipper (400a) of claim 23,

the clutch (480) is provided in a housing section (430c) of the operation panel (430), and has a body (480a), a pair of left and right elastic arms (480b) extending from the body (480a), and a pair of inclined surfaces (480c) each formed at the tip end of the pair of elastic arms (480b),

the pair of pressing pieces (470) are disposed in a pair of passages (430d) of the operation panel (430) and have a pair of tip portions (470a) formed at a front end,

the pair of pressing pieces (470) face the pair of inclined surfaces (480c) of the pair of elastic arms (480b) of the clutch (480) with the pair of tip end portions (470a),

when the pair of pressing members (470) are pressed from both left and right sides, the pair of pressing members (470) push the pair of inclined surfaces (480c) of the pair of elastic arms (480b) of the clutch (480) with the pair of tip end portions (470a), the pushed pair of inclined surfaces (480c) convert a horizontal movement amount into a vertical movement amount, the clutch (480) is separated upward from the operating gear (422), and the button (460) protrudes from the operating panel (430),

when the button (460) is pressed downward, the pair of inclined surfaces (480c) of the pair of elastic arms (480b) of the clutch (480) move along edges of the pair of tip end portions (470a) of the pair of pressing pieces (470), and elastically push the pair of pressing pieces (470) to move to the left and right sides.