CN103564995B - Zipper puller, zipper utilizing same and zipper item - Google Patents

Abstract

The invention provides a zipper slider, a zipper using the zipper slider and articles using the zipper. The zipper slider of the present invention is only composed of a main body (1), a locking member (2), an elastic member (3) and a cover (4); wherein, the main body (1) is provided with a chain element passage (104); the locking member ( 2) It has a base (201) and an upper arm (202) and a lower arm (203) protruding from the base (201), and a top end of the lower arm (203) is provided for entering into the chain element channel (104) to lock the zipper puller The claw part (206) protruding downwards is provided with a protrusion (205) protruding downwards at the top of the upper arm (203); the elastic member (3) always exerts force on the locking member (2) so that it faces the main body (1) Force on the upper surface; the cover (4) is fixed on the upper surface of the body. The invention has fewer parts, simple structure, and can reduce manufacturing cost. In addition, it can also reliably prevent the pulling piece from slipping out of the slider of the zipper, and has high reliability.

Description

A zipper slider, a zipper using the zipper slider and an article using the zipper

technical field

The invention relates to the technical field of zippers, and more specifically relates to a zipper slider, a zipper using the zipper slider and articles using the zipper.

Background technique

In the zipper sliders of the prior art, in order to meet the needs of consumers for decoration or maintenance and replacement, a zipper slider structure with a detachable handle is adopted. For example, Chinese patent CN101263949A discloses a zipper slider with the following structure. For the convenience of explanation, two figures in the invention patent are used here to introduce its structure. As shown in FIG. 703, a coil spring 704 as an elastic component, a locking pawl body 705, a leaf spring 706 as a pushing device, and a handle 707 with a shaft 708 at the bottom. Specifically, the above-mentioned handle holder body 702 is connected to the slider body 701 in a cantilevered state in which one end portion 709 thereof is fixed to the top surface side of the slider body 701, and the above-mentioned opening/closing member 703 is slidably Arranged on the slider body 701 to open and close the gap formed between the other end of the slider holder body 702 and the upper surface of the slider body 701, the above-mentioned elastic member 704 is used to push the opening/closing member 703 to In the closed position of the gap, the pull tab 707 is detachably held between the slider body 701 and the pull tab holder body 702 .

In combination with FIG. 16 and FIG. 17 , a protruding portion 710 for pivotally supporting the locking pawl body 705 is formed on the upper surface of the slider body 701 . And the locking claw body 705 has a claw proximal portion 711 and an upper arm portion 712 and a lower arm portion 713 extending substantially in parallel, the claw proximal portion 711 has a pivotably supported concave portion 714 through which the convex portion 710 to support. When the opening/closing member 703 is slidably arranged on the slider body 701, a closing portion 715, an upper arm portion 712, and a lower arm portion 713 formed on one end portion of the upper surface of the opening/closing member 703 form an in-line The extension direction of the upper arm part 712 is relatively closed to the enclosed space H'. Under the normal use state of the zipper, the shaft part 708 of the pull tab 707 is accommodated in the closed space H', so that the pull tab 707 is installed on the slider body 701 above. In addition, above the locking claw body 705, there is also a leaf spring 706 installed inside the handle holder body 702, so as to press the upper arm part 712 and the lower arm part 713 of the locking claw body 705 to the upper surface of the slider body 701. .

The installation process of the zipper slider is introduced below. First, the opening/closing member 703 and the coil spring 704 are assembled on the slider body 701 in an installation station, and then the concave part of the locking pawl body 705 is 714 is placed onto the pivotally supported raised portion 710 to form a first intermediate member. On the other hand, in another installation station, firstly, the pull-tab holder body 702 is turned upside down, so that the leaf spring 706 is installed inside the pull-tab holder body 702 to form a second intermediate member, and then the second middle The components are turned over and assembled on the slider body 701 in the first intermediate component of the above-mentioned one installation station, and then go through the fastening process of fastening one end of the pull tab holder body 702 and the slider body 701 to To form a preliminary assembly, finally, pass the shaft portion 708 of the pull tab 707 through the gap formed between the other end of the pull tab holder body 702 and the upper surface of the slider body 701, and lift the upper arm portion 712 to enter into the enclosed space H' to form the final zipper slider product.

In the above-mentioned zipper slider, there are the following problems:

In addition to the pull tab 707, this slide fastener slider includes a slider body 701, a pull tab holder body 702, an opening/closing member 703, a coil spring 704 as an elastic member, a lock claw body 705, and a leaf spring as a pusher. The six components of 706 have a large number of parts and a complex structure, which increases the manufacturing cost.

Contents of the invention

An object of the present invention is to overcome the disadvantages of the prior art and provide a zipper slider with fewer parts, simple structure and reduced manufacturing cost.

A further object of the present invention is to provide a highly reliable zipper slider capable of reliably preventing the pull tab from coming off the zipper slider.

A still further object of the present invention is to provide a slide fastener using a slide fastener slider having the above-mentioned effects, and an article using the slide fastener.

To achieve the above object, the technical solution of the present invention is:

A zipper slider, the zipper slider is only composed of a main body, a locking member, an elastic member and a cover; wherein, the main body is formed by connecting the upper and lower plates opposite up and down at intervals by connecting columns A chain element passage is formed between the upper plate and the lower plate, and a through hole penetrating the upper plate in the up and down direction is provided on the upper plate; the locking member has a base and extends from the base. The upper and lower arms facing up and down are provided with a gap between the upper arm and the lower arm for accommodating the shaft portion of the pull tab, and a claw protruding downward is provided at the top of the lower arm. There is a protrusion protruding downward at the top end of the upper arm, and the base of the locking member is supported on the locking member supporting portion provided on the upper surface of the main body so that the upper arm and the lower arm can swing up and down. In the up and down swing, the claw portion of the lower arm can enter the chain element passage through the through hole of the upper plate or withdraw from the chain element passage; the elastic member is always against the locking member Applying a force in a direction in which the upper arm and the lower arm swing downward; the cover is fixed on the upper surface of the main body to cover at least the locking member and the locking member supporting portion, and when the cover is installed on the In the case of the main body, an accommodating gap capable of accommodating the shaft portion of the handle is formed between the cover and the upper surface of the main body.

In addition to the pull tab, the zipper slider in the prior art also includes a slider body 701, a pull tab holder body 702, an opening/closing member 703, a coil spring 704 as an elastic member, a locking claw body 705, and a pushing device. The six components of the leaf spring 706, while the zipper slider of the present invention is only composed of four parts: the main body, the locking member, the elastic member, and the shell, and the zipper slider of the prior art is achieved by a relatively small number of parts. The slider has the same function: the slider is detachably installed on the slider of the zipper, and the structure is relatively simple, which greatly reduces the manufacturing cost. In addition, since the top end of the upper arm has a downward protruding protrusion for blocking the shaft portion and preventing the shaft portion from coming out of the gap.

Further, one end of the cover is fixed on the main body, and an end gap is provided between the other end of the cover and the upper surface of the main body for the shaft of the pull tab to pass through. The end gap communicates with the accommodating gap, and the other end of the cover is located on the same side as the top ends of the upper arm and the lower arm in the extending direction of the element passage.

In this way, during the process of installing the handle, the shaft part can enter the gap formed between the upper arm and the lower arm from the end gap.

In addition, a body protrusion protruding upward is provided on the upper surface of the body at a position opposite to the protrusion of the upper arm.

When the pull tab is pulled, such a design can make the gap between the protrusion on the upper arm and the upper surface of the main body as small as possible, thereby more reliably preventing the pull tab from slipping off from the slider of the zipper.

The elastic member applies a force to the locking member to swing the upper arm and the lower arm downward by springing against the upper side of the lower arm.

According to the above configuration, the claw portion provided at the tip end of the lower arm can reliably enter the element passage through the through hole. Moreover, when the shaft part of a handle passes through an end gap, interference of a shaft part and an elastic member can be avoided.

The elastic member is a "U"-shaped leaf spring, the bottom of the "U" is fixed on the upper surface of the main body, and the end of one leg of the "U" is connected to the other end of the cover. The end of the other leg of the "U" springs against the upper side of the lower arm to apply the force in the direction of swinging the upper arm and the lower arm downward to the locking member. .

Designed in this way, the end of a leg of the "U" abuts against the other end of the cover, closing the end gap between the other end of the cover and the upper surface of the main body, so that even if the Accidentally happened that the shaft portion came out from the gap between the upper arm and the lower arm, also due to the above-mentioned sealing effect, it formed the last barrier to prevent the shaft portion from coming out.

The elastic member is a helical torsion spring, and one end of the spring wire protruding from the spring body is pressed against the upper side of the lower arm to exert force on the locking member to make the upper arm and the lower arm swing downward. direction of the force.

A helical torsion spring is selected as the elastic member, and since the elastic force is generated by the whole helical torsion spring, the pressing force on the lower arm is more reliable.

The elastic member is a flat leaf spring, one end close to the lower arm springs against the upper side of the lower arm, and the other end away from the lower arm is fixed on the upper surface of the main body against The lock member applies the force in a direction to swing the upper arm and the lower arm downward.

The structure of the flat spring makes the structure of the elastic member and the elastic member accommodating part relatively simple and easy to install.

A disengagement prevention protrusion protruding inwardly for preventing disengagement of the lock member from the lock member support portion is provided at a position opposed to the base of the lock member on the inner surface of the cover.

Since the present invention adopts a structure in which the locking member is supported on the locking member supporting portion from above, if the gap between the lower wall of the cover and the locking member supporting portion is too large, it may cause the locking member to disengage from the locking member supporting portion. After the disengagement prevention protrusion is provided at the corresponding position on the cover, the upward movement of the base of the locking member can be restricted, thereby achieving the purpose of preventing disengagement.

The supporting part of the locking member is a supporting convex part protruding integrally from the upper surface of the main body. Two left and right stopper parts with a protrusion height higher than the supporting convex part are formed on the two sides of the main body in the width direction of the supporting convex part. A supporting concave part conforming to the shape of the supporting convex part is formed at a position adjacent to the lower arm on the lower side of the base part of the member.

Compared with the prior art that is hinged by a pin shaft, the present invention adopts a structure in which the locking member is supported by the supporting convex part from the lower side, so that the installation is relatively simple and the production efficiency is greatly improved.

The protrusion protrudes toward the lower arm.

When the pull-tab is pulled by external force, the protrusion contacts the shaft of the pull-tab. At this time, the protrusion can prevent the shaft portion of the handle from slipping out from between the upper arm and the lower arm.

The shape of the inner surface of the protrusion close to the upper arm matches the shape of the outer surface of the shaft part of the handle.

If the outer peripheral surface of the shaft does not conform to the shape of the inner surface, the shaft is cylindrical and the inner surface is an arc surface with a larger curvature than the cylindrical outer surface. At this time, a force along the length direction of the handle is applied to the shaft, and this force makes part of the outer surface of the shaft contact with the above-mentioned inner surface. In view of the difference in curvature of the outer surface and the inner surface, the contact at this time is actually Line contact, poor reliability, when the force applied to the pull piece changes direction, the shaft is very easy to move relative to the above inner surface, that is, relative sliding occurs, and it is easy to come out from the inner surface on the protrusion, and eventually lead to pull The tab comes out of the zipper pull. Therefore, the positioning reliability is poor. And even if the shape of the inner surface is an arc surface with a smaller curvature than the cylindrical outer surface, or the contact part of the two is of other shapes, since the surfaces in contact with each other are mostly line contact or partial surface contact, there is still The reliability is poor, and it is easy to make the pull tab fall out. However, in the present invention, the shape of the inner surface of the above-mentioned protrusion close to the above-mentioned upper arm matches the shape of the outer surface of the shaft part of the above-mentioned handle, no matter what kind of force is applied to the handle, the shaft part and the handle The above-mentioned inner sides produce reliable surface contact, thereby greatly improving the reliability of positioning and installation.

A zipper, which uses the zipper slider described in any one of the above technical solutions. Because the number of parts of the above-mentioned zipper slider is small, the structure is simple, and it can reliably prevent the pull piece from detaching from the zipper slider. Therefore, the manufacturing cost of the zipper using the above-mentioned zipper slider is low and the reliability is high.

In addition, the present invention also provides an article, which uses the zipper of the above technical solution. Likewise, the item is less expensive to manufacture and more reliable.

Compared with the prior art, the present invention has the following advantages and beneficial effects: the zipper slider of the present invention is only composed of four parts: the main body, the locking member, the elastic member and the shell, and has fewer parts, simple structure and low cost . In addition, since the top end of the upper arm has a downward protruding protrusion for blocking the shaft and preventing the shaft from coming out of the gap, and the protrusion is close to the shape of the inner surface of the upper arm and the outer surface of the shaft of the handle. The shapes match with each other, so that the pull tab can be reliably prevented from detaching from the slider of the zipper, and the installation reliability is improved.

Description of drawings

Fig. 1 is an exploded schematic view of the slider structure of the zipper according to the first embodiment of the present invention;

2 is a schematic cross-sectional structural view of the first embodiment of the present invention;

Fig. 3 is a schematic cross-sectional structural view of the shaft of the pull tab passing through the end gap in the first embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structural view of the protrusion of the upper arm of the locking member with the shaft of the pull tab pressed against in the first embodiment of the present invention;

Fig. 5 is a schematic cross-sectional structural view of the shaft portion of the pull tab passing between the protrusion and the protrusion of the main body in the first embodiment of the present invention;

Fig. 6 is a schematic cross-sectional structural view of the shaft part of the handle being accommodated between the upper arm and the lower arm in the first embodiment of the present invention;

Fig. 7 is a cross-sectional view showing the structure of the slider of the zipper in the state where the handle is pulled in the first embodiment of the present invention;

8 is a schematic cross-sectional structural view of a second embodiment of the present invention;

FIG. 9 is an enlarged structural schematic diagram of an elastic member and an elastic member receiving portion according to a second embodiment of the present invention;

Fig. 9A is an exploded schematic diagram of the structure of the zipper slider according to the second embodiment of the present invention;

Fig. 10 is a schematic cross-sectional structural view of the shaft of the pull-tab passing through the end gap in the second embodiment of the present invention;

Fig. 11 is a schematic cross-sectional structural view of the protrusion of the upper arm of the locking member pressed against the shaft of the pull tab in the second embodiment of the present invention;

Fig. 12 is a schematic cross-sectional structural view of the shaft portion of the handle passing between the protrusion and the protrusion of the main body in the second embodiment of the present invention;

Fig. 13 is a schematic cross-sectional structural view of the shaft part of the handle being accommodated between the upper arm and the lower arm in the second embodiment of the present invention;

Fig. 14 is a cross-sectional view showing the structure of the slider of the zipper in the second embodiment of the present invention when the handle is pulled;

Fig. 15 is a schematic cross-sectional structure diagram of a zipper slider according to a third embodiment of the present invention;

Fig. 16 is an exploded schematic view of the slider structure of the zipper in the prior art;

Fig. 17 is a schematic cross-sectional structure diagram of a zipper slider structure in the prior art.

detailed description

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

In the present invention, the so-called "upper", "lower", "front", "rear", and "width direction" are subject to what is marked in Figure 1 of the accompanying drawings. Among them, when the zipper is usually sewn on the luggage, clothing, etc., the side facing the outside of the luggage, clothing, etc., that is, the side for the user to operate is "up" (that is, directly above the paper in Figure 1); When it is usually sewn on bags, clothing, etc., the side facing the inside of the above-mentioned bags, clothing, etc., that is, the side that cannot be operated by the user is "down" (that is, directly below the paper in Figure 1); The operating direction is "front" (i.e. roughly the bottom right of the paper in Figure 1); the operation direction when the zipper is usually opened is "rear" (that is, roughly the upper left of the paper in Figure 1); the pair of chains of the usual zipper The two sides where the belt is located are the "width direction" (that is, the roughly lower left-upper right direction on the paper of Fig. 1 ).

(first embodiment)

1 to 7 illustrate the slider of the first embodiment of the present invention. FIG. 1 is an exploded schematic view of the structure of the slider of the zipper in this embodiment; FIG. 2 is a schematic cross-sectional structure diagram of the present embodiment; Fig. 7 is a cross-sectional view showing the structure of the slider in the state where the handle is pulled in the present embodiment.

As shown in Figure 1, the zipper slider of the present invention is only composed of a main body 1, a locking member 2, an elastic member 3, and a cover 4, and the locking member 2, elastic member 3, and cover 4 are all arranged on the upper surface of the main body 1, And this cover 4 covers at least the said lock member 2 and the lock member support part 105 mentioned later. Of course, in the process of actual use, a pull-tab 5 is installed to facilitate the operation of the zipper slider, the pull-tab 5 is formed with a shaft portion 501 at the lower end, and the pull-tab 5 accommodates the shaft portion 501 in the slide fastener. The slider is thus installed in the zipper slider.

Next, the detailed structure of the zipper slider will be described.

As shown in FIG. 1 , the main body 1 includes an upper plate 101 and a lower plate 102 facing up and down, and the upper plate 101 and the lower plate 102 are connected at a certain interval through a connecting column 103 at the front end, so that the upper plate 101 and the lower plate 102 A “Y”-shaped fastener element passage 104 is formed between the lower plates 102 . The element passage 104 extends in the front-rear direction of the main body 1 . On the upper surface of the upper plate 101, a locking member supporting portion 105 is formed at substantially the center in the width direction of the main body 1, and the locking member supporting portion 105 is used to support the locking member 2 swingably in the up and down direction, so that the locking Member 2 can swing up and down. 2, the locking member supporting portion 105 is a supporting convex portion 106 protruding integrally from the upper surface of the upper plate 101 (the upper surface of the main body 1), and preferably in the width direction of the main body 1 of the supporting convex portion 106. Two left and right stoppers 107 , 107 protruding higher than the supporting protrusion 106 are formed on both sides.

Of course, as long as the function of making the locking member 2 swing up and down can be realized, the locking member supporting portion 105 can also have other structures.

In addition, the upper surface of the upper plate 101 is further provided with a locking member accommodating groove 108 extending rearward from the locking member supporting portion 105 (the groove body extends along the front-rear direction). After the locking member 2 is supported on the locking member supporting portion 105 , one end of the locking member 2 can swing up and down in the receiving groove 108 . In addition, an elastic member accommodating portion 109 for accommodating the elastic member 3 is provided behind the locking member accommodating groove 108 on the main body 1 . In addition, on the upper surface of the upper plate 101 , left and right sliding grooves 110 , 110 extending along the front-rear direction are respectively provided at positions away from the left and right stoppers 107 , 107 outward in the width direction.

Next, the structure of the cover 4 will be introduced. As shown in Figures 1 and 2, the cover 4 is integrally formed as an inverted groove-shaped member, so that when the cover 4 is installed on the main body 1, the inside of the groove-shaped member can at least straddle the locking on the upper surface of the main body 1 Member 2 and locking member support 105 above. The front end of the notch of the cover 4 is provided with left and right flanges 401, 401 extending along the front and rear direction of the cover 4 (because of the left-right symmetry, only the left flange is shown in Fig. 1 ), the left and right flanges 401, 401 are respectively slidably connected with the left and right flange sliding grooves 110, 110 on the upper surface of the upper plate 101 (and through known technical means such as crimping, riveting, etc., to limit the front and rear direction of the cover 4 relative to the main body 1 Displacement), so that the cover 4 is fixed on the upper surface of the upper plate 101 in a cantilevered manner in the front-rear direction. Here, it is preferable that the left and right flange parts 401, 401 and the left and right flange slide grooves 110, 110 have the same length in the front-rear direction. In addition, as shown in Figures 1 and 2, the cover 4, which is a groove-shaped member, forms a missing part 402 near the rear end of the tank wall, and the missing part 402 makes the cover 4 roughly "L"-shaped when viewed from the width direction , and by the action of the missing portion 402 , an accommodating gap capable of accommodating the shaft portion 501 of the handle 5 is formed between the cover 4 and the upper surface of the main body 1 . When the front end of the cover 4 is cantilevered on the main body 1, an end gap 403 that can pass through the shaft 501 of the pull tab 5 is formed between the lower surface of the rear end of the cover 4 and the upper surface of the rear end of the main body 1. And the end gap communicates with the accommodating gap. Of course, the rear end portion of the cover 4 and the top ends of the upper arm 202 and the lower arm 203 of the lock member 2 described later are located on the same side in the extending direction of the element passage 104 .

The pull tab 5 is formed from a strip-shaped plate. An opening 502 penetrating through the handle body in the thickness direction is formed at the lower end thereof, and the shaft 501 is provided at a lower end than the opening 502 . When attaching the handle 5 to the slider, the rear end of the cover 4 is inserted into the opening 502 .

The structure of the locking member 2 will be introduced below. As shown in FIG. 1 , the locking member 2 has a base 201 and upper and lower arms 202 and 203 facing up and down extending substantially parallel from the base 201 rearward. The upper arm 202 and the lower arm 203 are formed with a gap G in the vertical direction for accommodating the shaft portion 501 of the handle 5. When the handle 5 is installed in the zipper slider, the shaft at the lower end of the handle 5 can be accommodated in the gap G. Section 501. The base portion 201 of the lock member 2 is supported by a lock member support portion 105 provided on the upper surface of the main body 1 in such a manner that the upper arm 202 and the lower arm 203 can swing up and down. Specifically, a support concave portion 204 matching the shape of the support convex portion 106 is formed at a position adjacent to the lower arm 203 on the lower side of the base portion 201 of the locking member 2, so that the support concave portion 204 and the support convex portion 106 are aligned. By fitting together, the lock member 2 is supported on the lock member support portion 105 so as to be swingable in the vertical direction. That is, when the lock member 2 receives an external force from the shaft portion 501 of the handle 5 , it swings around the support protrusion 106 so that the lower arm 203 moves in and out of the lock member accommodating groove 108 in the vertical direction.

In addition, as seen in conjunction with FIG. 2 , a protrusion 205 protruding downward is provided at the tip of the upper arm 202 . The protrusion 205 protrudes toward the upper surface of the main body 1 and protrudes toward the upper surface of the lower arm 203 . Thus, the protrusion 205 can block the shaft portion 501 so that the shaft portion 501 cannot escape from the gap G between the upper arm 202 and the lower arm 203 . In addition, it is preferable that the shape of the inner surface 207 of the protrusion 205 close to the upper arm 202 matches the shape of the outer surface of the shaft portion 501 (cylindrical shape) of the handle 5 . In this embodiment, the shaft portion 501 is cylindrical, and the inner surface 207 is substantially cylindrical. Of course, the present invention is not limited thereto. As long as the two shapes match, they can be in any shape, for example , it is also possible that the shaft portion 501 is in the shape of a quadrangular prism, and the inner surface 207 is in the shape of an "L" or the like. At the same time, when the locking member 2 is swingably supported on the locking member supporting portion 105 , an upwardly protruding main body protruding portion 113 is provided at a position corresponding to the protrusion 205 on the upper surface of the main body 1 . Specifically, two wavy main body protrusions 113 are formed by partial protrusions of the upper end of the groove wall extending in the front-rear direction of the locking member accommodating groove 108 . Therefore, when the shaft portion 501 of the handle 5 is accommodated in the gap G formed by the upper arm 202 and the lower arm 203 in the up-down direction, the main body protrusion 113 , the protrusion 205 , and the main body protrusion that are arranged sequentially in the width direction are essentially formed. 113 collectively hinder the escape of the shaft portion 501 from the gap G. The protruding part 113 of the main body is provided to make the gap between the protrusion 205 and the upper surface of the main body 1 as small as possible when the pull tab is pulled, so as to more reliably prevent the pull tab 5 from slipping off from the zipper slider.

In addition, the top end of the lower arm 203 is provided with a downward protruding claw 206 capable of entering into the element passage 104 formed inside the main body 1 and entering into the space between adjacent elements to lock the zipper slider. Specifically, when the locking member 2 is mounted on the locking member supporting portion 105, a through hole penetrating the upper plate 101 in the vertical direction is formed at a position corresponding to the claw portion 206 on the groove bottom of the locking member receiving groove 108. 111. When the locking member 2 rotates counterclockwise around the supporting convex portion 106 (counterclockwise in FIG. 2 ), the claw portion 206 enters the “Y”-shaped element passage 104 through the through hole 111 and enters the adjacent element (not shown) to lock the zipper slider relative to the chain elements so as not to slide relative to the chain elements, so as to prevent the zipper from being accidentally pulled apart; When turning clockwise (clockwise in FIG. 2 ), the claw portion 206 can withdraw from the fastener element passage 104 .

In addition, as shown in FIG. 2 , the shape of the surface 112 at the position corresponding to the lower arm 203 on the groove bottom of the locking member accommodating groove 108 matches the shape of the lower surface 208 of the lower arm 203; On the inner surface, a disengagement preventing protrusion 404 is also formed at a position corresponding to the supporting protrusion 106 (ie, a position opposing the base 201 of the lock member 2 ). The detachment preventing protrusion 404 protrudes downward and extends toward the base 201 of the lock member 2 . Also, the detachment preventing protrusion 404 enters between the left and right stoppers 107 , 107 . The disengagement prevention protrusion 404 is used to prevent the lock member 2 from disengaging from the lock member support portion 105 . Therefore, when the cover 4 is installed on the main body 1, and the locking member 2 rotates counterclockwise around the supporting protrusion 106, when the lower surface 208 of the lower arm 203 abuts against the surface 112, and/or the upper surface of the base 201 When the end surface abuts against the detachment preventing protrusion 404 , the rotation of the locking member 2 can be restricted, that is, the lower limit position of the locking member 2 (the position shown in FIGS. 2 and 3 ) is formed. In addition, the formation of the lower limit position can be ensured by the claw portion 206 abutting against the edge of the through hole 111 .

Further, the elastic member 3 and the elastic member accommodating portion 109 will be described in detail. As shown in Figures 1 and 2, the elastic member 3 is provided on the upper surface of the main body 1 on the side away from the connecting post 103 through the elastic member receiving portion 109, and always exerts force on the locking member 2 so that the upper arm 202 and the lower arm 203 are downward. swing force. Specifically, the elastic member receiving portion 109 includes: a concave elastic member receiving groove 114 and an anti-off portion 118, wherein the elastic member receiving groove 114 is formed on the rear end side of the upper surface of the main body 1 and opens upward; The anti-falling portion 118 is disposed on the periphery of the elastic member receiving groove 114 , and covers at least a part of the elastic member 3 from above so that the elastic member 3 accommodated in the elastic member receiving groove 114 will not fall out. More specifically, the elastic member receiving portion 109 has a rear end stop portion 115 integrally protruding upward from the upper surface of the main body 1, a front end stop portion 115′, and an elastic member receiving groove 114 formed between the two. , the top end of the rear end stopper 115 has an anti-off portion 118 covering at least a part of the elastic member 3 from above. The anti-slip portion 118 extends in a posture inclined forward of the main body 1 . It is preferable that the anti-slip portion 118 is bent and extended so as to conform to the outer peripheral shape of the torsion spring 301 as the elastic member 3 described later. In addition, a part of the front end stopper portion 115' is cut away so as to connect the elastic member receiving groove 114 and the locking member receiving groove 108 together. Therefore, a part of the elastic member 3 extends out from the elastic member receiving groove 114 and enters into the locking member receiving groove 108 . In this embodiment, the elastic member is preferably a helical torsion spring 301 having a cylindrical torsion spring body, a first free end portion 302 and a second free end portion 303 extending from the cylindrical torsion spring body. The anti-drop portion 118 covers the upper part of the torsion spring main body. The second free end portion 303 extends from the elastic member receiving groove 114 and enters into the locking member receiving groove 108 . The helical torsion spring 301 is fixed in the elastic member accommodating groove 114 when elastically deformed by the action of the elastic member accommodating groove 114, that is, the helical torsion spring 301 is elastically fixed in the elastic member accommodating portion 109 in the following manner: The spring main body is accommodated in the elastic member receiving groove 114, and the first free end portion 302 is stuck against the rear end stop portion 115 of the elastic member receiving portion 109, and the second free end portion 303 exceeds the front end from the elastic member receiving groove 114. The stopper 115' protrudes forward and presses against the upper surface of the lower arm 203 to apply force to the locking member 2 in a direction in which the upper arm 202 and the lower arm 203 swing downward.

To sum up, the locking member 2 is swingably supported on the upper surface of the main body 1 through the cooperation of the supporting concave portion 204 and the supporting convex portion 106, and at the same time, the elastic member 3 is mounted on the elastic member receiving portion 109 in the elastically deformed state. and always apply downward force to the lower arm 203 of the locking member 2, the cover 4 is supported by cantilever in the front-rear direction through the sliding fit of the left and right flange parts 401, 401 respectively with the left and right flange sliding grooves 110, 110 It is fixed on the upper surface of the main body 1, and the handle 5 is attached to the slider so that the shaft portion 501 thereof is accommodated between the upper arm 202 and the lower arm 203 .

Next, the assembly process of the zipper slider and the puller 5-way zipper slider will be described.

As shown in Figures 1 and 2, the assembly process of the zipper slider includes the following steps:

(1) A step of attaching the lock member 2 to the lock member support portion 105 . Specifically, the support concave portion 204 is brought into contact with the support convex portion 106 , and the lower arm 203 is accommodated in the locking member accommodation groove 108 . At the same time, the lower surface 208 of the lower arm 203 is in contact with the bottom surface 112 of the locking member receiving groove 108 , so that the locking member 2 can be more reliably fixed on the upper surface of the main body 1 . Moreover, the claw part 206 provided in the end part of the lower arm 203 enters into the element passage 104 of "Y" shape through the through-hole 111. As shown in FIG.

(2) A step of installing the elastic member 3 into the elastic member housing portion 109 . Specifically, when the first free end portion 302 and the second free end portion 303 of the helical torsion spring 301 are twisted in a direction close to each other manually or by a tool, the helical torsion spring in elastic deformation 301 is put into the elastic member receiving part 109 from the notch of the elastic member receiving groove 114, and the first free end part 302 is stuck against the rear end stopper part 115 of the elastic member receiving part 109, so that the second free end part 302 The end portion 303 protrudes forward from the elastic member receiving groove 114 beyond the front end stop portion 115 ′ and elastically presses the lower arm 203 onto the bottom surface 112 of the locking member receiving groove 108 . At the same time, the claw portion 206 is pressed into the “Y”-shaped fastener element passage 104 through the through hole 111 .

(3) Step of attaching the cover 4 to the main body 1 . Specifically, the cover 4 is installed from the front end of the main body 1 with the missing part 402 facing the rear end of the main body 1, that is, by making the left and right flange parts 401, 401 slide grooves along the left and right flanges on the upper surface of the upper plate 101 respectively. 110, 110 are slidingly installed, so that the cover 4 is fixed on the upper surface of the upper plate 101, and a shaft portion 501 that can pass through the pull tab 5 is formed between the lower surface of the rear end of the cover 4 and the upper surface of the main body 1 The end gap 403.

3 to 6 are diagrams showing the process of attaching the handle 5 to the slide fastener slider. First, in order to connect the handle 5 to the zipper slider, as shown in Fig. 3, the shaft portion 501 of the handle 5 is inserted into the end gap 403 (the rear end of the cover 4 is inserted into the opening portion 502 of the handle 5) ; As shown in Figure 4, move the shaft portion 501 of the pull tab 5 forward along the end gap 403, so that the shaft portion 501 contacts the rear side of the protrusion 205 of the upper arm 202 of the locking member 2, as shown in Figure 4, due to the protrusion The rear side of the 205 is formed as a slope inclined forward and downward from top to bottom, and the lower end of the protrusion 205 is formed into a round head shape, so when the shaft portion 501 is pushed forward, the shaft portion 501 will overcome it as shown in FIG. 4 . The elastic force of the helical torsion spring 301 makes the locking member 2 rotate clockwise around the support protrusion 106 to lift the protrusion 205 and the upper arm 202 (that is, the lower arm 203 is lifted, and drives the second free end 303 of the helical torsion spring 301 lift to make the helical torsion spring 301 elastically twist); as shown in Figure 5, when the shaft part 501 is further pushed forward, the protrusion 205 continues to lift, the locking member 2 continues to rotate clockwise, and the lower arm 203 is further lifted to make the helical The torsion spring 301 undergoes greater torsional deformation; and when the gap between the lower end of the protrusion 205 and the upper end of the main body protrusion 113 located in the locking member accommodating groove 108 is equal to the diameter of the shaft portion 501, the shaft is further pushed forward. part 501, as shown in Figure 6, the shaft part 501 passes between the protrusion 205 and the main body protrusion 113, is arranged on the front side of the protrusion 205, enters the gap G between the upper arm 202 and the lower arm 203, and enters the Between the middle part (a part of the missing part 402) and the upper surface of the main body 1, the shaft part that allows the shaft part 501 to move in it is surrounded by the upper end part of the upper arm 202 and the groove wall of the locking member accommodating groove 108. In the space H (that is, the part where the aforementioned gap G overlaps with the accommodation gap), at this time, under the action of the elastic force of the helical torsion spring 301, the locking member 2 rotates counterclockwise, that is, the second free end 303 will The lower arm 203 elastically presses onto the surface 112 of the groove bottom of the locking member accommodating groove 108, thereby returning to the lower limit position described above as shown in FIG. 6, that is, the position shown in FIG. The process of installing the pull tab 5 on the zipper slider.

When the handle 5 is not pulled, as shown in Figure 6, the shaft 501 of the handle 5 is accommodated in the above-mentioned shaft movable space H, and at the same time, the second free end of the helical torsion spring 301 Under the action of 303 , the claw portion 206 is pressed into the “Y”-shaped fastener element passage 104 through the through hole 111 to lock the fastener elements in the fastener element passage 104 . When pulling the pull tab 5 forward and upward or backward and wanting to pull the slider of the zipper to open or close the zipper, as shown in Figure 7, pulling the pull tab 5 backward and upward overcomes the locking of the helical torsion spring 301. When a torque in the counterclockwise direction is applied by the member 2, the locking member 2 rotates clockwise, and the claw portion 206 of the locking member 2 withdraws from the “Y”-shaped fastener element passage 104 . Therefore, the slide fastener slider is in a slidable state with respect to the fastener elements, and the slide fastener can be opened or closed by sliding relative to the fastener elements. In addition, when the pull tab 5 is pulled upward and backward, the shaft portion 501 is brought into contact with the front surface of the protrusion 205 in a surface-contact manner, in other words, it is adjacent to the lower surface of the upper arm 202 and is used to limit the movement of the shaft portion. The inner side surface 207 of the periphery of the space H is in contact (the shape of the inner shaft side surface 207 matches the shape of the outer surface of the shaft portion 501 ). Therefore, the shaft portion 501 is hooked on the protrusion 205, and it is difficult to fall off from the gap G between the upper arm 202 and the lower arm 203, and the main body protruding portion provided at the upper end portion of the locking member accommodating groove 108 113, so that the gap between the protrusion 205 and the upper surface of the main body 1 is as small as possible, so as to more reliably prevent the shaft portion of the handle 5 from coming out of the gap G between the upper arm 202 and the lower arm 203. In addition, the helical torsion spring 301 presses the lower arm 203 downward, and always applies force to the locking member 2 to make the upper arm 202 and the lower arm 203 approach the main body 1 side, which also makes it difficult to disengage the shaft portion 501 of the handle 5. Further increase.

This embodiment also provides a zipper (not shown), which uses the zipper slider of the above embodiment. Moreover, this embodiment also includes the article which used the said slide fastener.

(Second Embodiment)

This embodiment is similar to the first embodiment, and the same components as those in the first embodiment are given the same reference numerals. In addition, here, for the same structure and assembly method of the zipper slider in the first embodiment, the description will be omitted, and only the differences between the first embodiment and the first embodiment will be described below, namely: the elastic member 3 and the elastic The structure of the receiving portion 109 and the method of installing the elastic member 3 .

As shown in Figures 8 and 9, the elastic member receiving part 109 of this embodiment is the same as the first embodiment, formed on the upper surface of the main body 1 away from the side of the connecting column 103, and includes the bottom of the elastic member receiving groove 114 ( The upper surface of the main body 1 ) the rear end stopper 115 , the left fixing part 116 and the right fixing part 117 integrally protruding upward respectively. The elastic member receiving groove 114 is formed between the left fixing part and the right fixing part. In addition, an anti-falling portion 118 covering at least a part of the elastic member 3 from above is provided on the top end of the rear end stop portion 115 for limiting the elastic member 3 to escape upward from the elastic member receiving groove 114 . The elastic member 3 of this embodiment is a plate spring 304 with a substantially "U"-shaped longitudinal section, and has a first free piece 305 (corresponding to the "U" described in the claims) extending from the U-shaped base. One leg of the word) and the second free piece 306 (corresponding to the other leg of the "U" in the claims); the anti-off part 118 covers the upper part of the base. The first free piece portion 305 includes a first inclined portion 308 and a second inclined portion 309 sequentially from the base, the first inclined portion 308 is inclined away from the second free piece portion 306 relative to the base, and the second inclined portion 309 is inclined relative to the first inclined portion 308 to approach the second free piece portion 306; in addition, at the end of the first free piece portion 305, a recessed escape portion is formed in the approximate center of the width direction. 310 , so that the first free piece 305 will not interfere with the rotation of the locking member 2 . An auxiliary pressing portion 311 bent away from the first free piece 305 is formed at the end of the second free piece 306, and the portion 312 of the auxiliary pressing portion 311 that contacts the lower arm 203 protrudes downward. The terrain is in the shape of an arc.

In addition, two first protrusions 313, 313 are provided at one end in the width direction of the leaf spring 304, and two first protrusions 313, 313 are provided at positions corresponding to the two first protrusions 313, 313 at the other end in the width direction. There are two second protrusions 314, 314, and the two first protrusions 313, 313 are separated by a certain interval in the front-rear direction, and the two second protrusions 314, 314 are separated by a certain interval in the front-rear direction. As shown in Figure 9, there are two first protrusions 313, 313, and among the two second protrusions 314, 314, one first protrusion 313 and one second protrusion 314 are arranged on the base of the "U", and the other second protrusion The illustration that one protrusion 313 and another second protrusion 314 are arranged on the second free piece 306, of course, as long as the above-mentioned condition of being separated by a certain distance in the front-rear direction is satisfied, it can also be arranged in other forms, for example, A first protrusion 313 and a second protrusion 314 are arranged on the first free piece 305, another first protrusion 313 and a second protrusion 314 are arranged on the second free piece 306, or two first protrusions 313, 313 , the two second protrusions 314 , 314 are both disposed on the first free piece portion 305 or the second free piece portion 306 . Corresponding to the structural difference, in the assembling steps of the zipper slider, the step of installing the elastic member 3 into the elastic member receiving portion 109 is also changed accordingly. In the specific installation process, the base of the "U"-shaped leaf spring 304 is placed in the elastic member receiving groove 114 formed between the left fixed part 116 and the right fixed part 117, and the left fixed part 116 is stuck in the Between the two first protrusions 313 , 313 , the right side fixing portion 117 is locked between the two second protrusions 314 , 314 , so as to securely lock the leaf spring 304 . In addition, the end of the first free piece 305 abuts against the lower surface of the rear end of the cover 4 to close the above-mentioned end gap 403, while the end of the second free piece 306 springs against the upper side of the lower arm 203 to close the gap 403. A force in a direction in which the upper arm 202 and the lower arm 203 are swung downward is applied to the lock member 2 .

In addition, FIG. 9A is an exploded schematic view of the structure of the zipper slider in this embodiment; in this figure, the structure of the leaf spring 304 has changed slightly compared to FIG. The part side is formed so that the width dimension becomes smaller.

10-13 is a figure which shows the attachment process of the handle 5 to the slider of this embodiment. First, in order to connect the handle 5 to the zipper slider, as shown in FIG. 10 , make the shaft portion 501 of the handle 5 contact and press the first inclined portion 308 of the leaf spring 304, and make the first free piece 305 downward. Elastic deformation occurs, thereby opening the end gap 403, and allowing the shaft 501 to enter the end gap 403 (the rear end of the cover 4 enters the opening 502 of the pull tab 5); as shown in Figure 11, along the end gap 403 Move the shaft portion 501 of the pull tab 5 forward, so that the shaft portion 501 contacts the second inclined portion 309 of the leaf spring 304, and at the same time, contacts the rear side of the protrusion 205 of the upper arm 202 of the locking member 2, as shown in FIG. As shown, since the rear side of the protrusion 205 is formed as a slope inclined forward and downward from top to bottom, and the lower end of the protrusion 205 is formed into a round head shape, therefore, when the shaft portion 501 is pushed forward, the shaft portion 501 will be as shown in Figure 11. As shown, the lock member 2 is rotated clockwise about the support protrusion 106 against the elastic force of the leaf spring 304 to lift the protrusion 205 and the upper arm 202 . At this time, the lower arm 203 and the upper arm 202 are lifted together, and drive the second free piece 306 of the plate spring 304 to lift up, so that the plate spring 304 is elastically deformed. Here, since the front end portion of the second free piece portion 306 is formed with the pressing portion 311 bent and inclined so as to be away from the first free piece portion 305, the elastically deformable range is formed by the second free piece portion 306. The range of elastic deformation of the two free piece parts 306 is the range in which the upper pressing part 311 is added to the second free piece part 306 , which can produce larger elastic deformation. In addition, since the contact portion of the second free piece 306 and the lower arm 203 is formed in an arc shape protruding downward, the leaf spring 304 is not pressed into the lower arm 203 and damage to the lower arm can be prevented. As shown in FIG. 12 , when the shaft portion 501 is further pushed forward, the shaft portion 501 is out of contact with the second inclined portion 309 , and the second inclined portion 309 abuts against the cover 4 again under the action of the elastic restoring force. At the same time, the protrusion 205 continues to lift, the locking member 2 continues to rotate clockwise, and the lower arm 203 is further lifted to make the second free piece 306 of the plate spring 304 change. Large elastic deformation; and when the gap between the lower end of the protrusion 205 and the upper end of the main body protrusion 113 located in the locking member accommodating groove 108 is equal to the diameter of the shaft portion 501, the shaft portion 501 is further pushed forward, then as As shown in FIG. 13 , the shaft portion 501 passes through the gap between the protrusion 205 and the main body protrusion 113 , is disposed on the front side of the protrusion 205 , enters the gap G between the upper arm 202 and the lower arm 203 , and enters the center of the cover 4 . Part (a part of the missing part 402) and the upper surface of the main body 1, the shaft part activity space H in which the shaft part 501 is allowed to move is surrounded by the upper end part of the upper arm 202 and the groove wall of the locking member accommodating groove 108 At this time, under the action of the elastic force of the plate spring 304, the locking member 2 rotates counterclockwise, that is, its second free piece 306 elastically presses the lower arm 203 to the bottom of the locking member accommodating groove 108. surface 112, so as shown in FIG. 13, it returns to the lower limit position described above, that is, the position shown in FIG. 3. So far, the process of installing the pull tab 5 on the zipper slider is completed.

When the handle 5 is not pulled, as shown in FIG. 13 , the shaft 501 of the handle 5 is accommodated in the above-mentioned shaft movable space H, and at the same time, the second free piece 306 of the leaf spring 304 Under the effect of the action, the claw portion 206 is pressed into the “Y”-shaped fastener element passage 104 through the through hole 111 to lock the fastener elements in the fastener element passage 104 . When the pull tab 5 is pulled forward and upward or rear upward, and the zipper slider is pulled to open or close the zipper, as shown in Figure 14, the pull tab 5 is pulled upward and backward to overcome the plate spring 304 to the locking member. 2 When the torque in the counterclockwise direction is applied, the locking member 2 rotates clockwise, and the claw portion 206 of the locking member 2 withdraws from the "Y"-shaped fastener element passage 104, so that the zipper pull head can be positioned relative to the chain The state of the teeth sliding, and can slide relative to the chain teeth to perform the action of opening the zipper or closing the zipper. In addition, when the pull tab 5 is pulled upward and backward, the shaft portion 501 is brought into contact with the front surface of the protrusion 205 in a surface-contact manner, in other words, it is adjacent to the lower surface of the upper arm 202 and is used to limit the movement of the shaft portion. The inner surface 207 of the periphery of the space H is in contact (the shape of the inner surface 207 matches the shape of the outer surface of the shaft portion 501 ). Therefore, the shaft portion 501 is hooked on the protrusion 205, and it is difficult to fall off from the gap G between the upper arm 202 and the lower arm 203, and the main body protruding portion provided at the upper end portion of the locking member accommodating groove 108 113, so that the gap between the protrusion 205 and the upper surface of the main body 1 is as small as possible, so as to more reliably prevent the shaft portion of the handle 5 from coming out of the gap G between the upper arm 202 and the lower arm 203. In addition, the plate spring 304 presses the lower arm 203 downward, and always applies a force to the locking member 2 to make the upper arm 202 and the lower arm 203 approach the main body 1 side, which also makes it more difficult to disengage the shaft portion 501 of the handle 5. increase. Finally, even if the shaft portion 501 comes out of the above-mentioned shaft portion movable space H, since the second inclined portion 309 on the leaf spring 304 abuts against the lower surface of the rear end of the cover 4, the above-mentioned end gap 403 is closed, Thereby, the last barrier to prevent the shaft portion 501 from falling out can be formed.

(third embodiment)

This embodiment is similar to Embodiment 1. Here, for the same structure and assembly method of the zipper slider in Embodiment 1, its description is omitted. In addition, the same components as Embodiment 1 are marked with the same Reference sign. The differences between this embodiment and the first embodiment lie in the structures of the elastic member 3 and the elastic receiving portion 109 , and the installation method of the elastic member 3 .

Fig. 15 is a schematic cross-sectional structure diagram of the slider of the present embodiment. As shown in FIG. 15 , the elastic member receiving portion 109 has an elastic member receiving groove 114 communicating with the locking member receiving groove 108 and a rear end stopper 115 protruding from the rear end of the elastic member receiving groove 114 . Furthermore, it has the leaf spring pressing part 119 which bends part of the rear end stopper part 115 toward the front of a main body, and the bottom surface of the elastic member accommodating groove 114. As shown in FIG. The elastic member 3 of this embodiment is a flat spring 315. During the specific installation process, one end of the flat spring 315 is pressed against the upper side of the lower arm 203 to be arranged, and the other end away from the lower arm 203 is clamped. And it is fixed between the plate spring pressing part 119 and the bottom surface of the elastic member receiving groove 114, so as to apply force to the lock member 2 in the direction of swinging the upper arm 202 and the lower arm 203 downward.

The installation process of the 5-way slider of the pull tab in this embodiment is similar to that in Embodiment 1, and will not be repeated here.

Certainly, the present invention can also make appropriate improvements on the basis of the above-mentioned embodiments, for example: the locking member accommodating groove 108 may not be provided on the upper surface of the main body 1, and the elastic member accommodating portion 109 may be directly arranged on the upper surface of the main body 1 In addition, the main body protruding part may be directly provided on the upper surface of the main body 1 or the upward protruding main body protruding part 113 may not be provided at all. Such transformations also fall within the protection scope of the present invention.

Claims (12)

1. a kind of zipper head, it is characterised in that the zipper head only by main body (1), locking component (2), elastic component (3) with And lid (4) is constituted；Wherein, the main body (1) be by connecting pole (103) by upper plate opposing upper and lower (101) and lower plate (102) it What compartment of terrain spaced apart was connected, chain tooth path (104) is formed between the upper plate (101) and lower plate (102), The upper plate (101) is provided with the through hole (111) of upper plate (101) described in insertion along the vertical direction；The locking component (2) has Base portion (201) and the upper arm opposing upper and lower (202) stretched out from the base portion (201) and underarm (203), in the upper arm (202) gap (G) for accommodating the axle portion (501) of pulling-on piece (5) is provided with and underarm (203) between, on the underarm (203) top End is provided with downward projection of claw (206), and on the top of the upper arm (202) projection (205) prominent downwards is provided with, described The base portion (201) of locking component (2) is so that the mode that the upper arm (202) and the underarm (203) can swing up and down is supported by On the locking component support (105) being located on the main body (1) upper surface, swung up and down by described, the underarm (203) the claw (206) can be via the through hole (111) of the upper plate (101) into the chain tooth path (104) Or exit from the chain tooth path (104)；The elastic component (3) applies to make the upper arm all the time to the locking component (2) (202) and power from the underarm (203) to the direction of lower swing；The lid (4) is fixed on the upper surface of the main body, at least The locking component (2) and locking component support (105) are covered, in situation of the lid (4) in the main body (1) Under, the axle portion that can accommodate the pulling-on piece (5) is formed between upper surface of the lid (4) with the main body (1) (501) receiving gap,

The elastic component (3) applies to make by suppressing on the upper side of the underarm (203) and to the locking component (2) The power of the upper arm (202) and the underarm (203) to lower swing.

2. zipper head according to claim 1, it is characterised in that one end of the lid (4) is fixed on the main body (1) on, the axle portion for the pulling-on piece (5) is provided between the other end of lid (4) and the upper surface of the main body (1) (501) tip-clearance (403) for passing through, the tip-clearance (403) is connected with the receiving gap, the lid (4) it is another End is located at the top of the upper arm (202) and the underarm (203) on the bearing of trend of the chain tooth path (104) The same side.

3. zipper head according to claim 1, it is characterised in that on the upper surface of the main body (1) with it is described The position that the projection (205) of upper arm (202) is relative is provided with the body extension (113) for projecting upwards.

4. zipper head according to claim 1, it is characterised in that the elastic component (3) is the plate bullet in "U" shaped Spring (304), the bottom of " U " word is fixedly installed on the upper surface of main body (1), the end of a leg (305) of " U " word with The other end of the lid (4) is abutted, and the end of another leg (306) of " U " word is suppressed in the upper of the underarm (203) Apply to make the institute of the upper arm (202) and the underarm (203) to the direction of lower swing on side and to the locking component (2) State power.

5. zipper head according to claim 1, it is characterised in that the elastic component (3) is helical torsion spring (301), The one end (303) stretched out from spring main body of spring silk is suppressed on the upper side of the underarm (203) and to the locking component (2) apply to make the power of the upper arm (202) and the underarm (203) to the direction of lower swing.

6. zipper head according to claim 1, it is characterised in that the elastic component (3) is tabular leaf spring (312), it is suppressed on the upper side of the underarm (203) near one end of the underarm (203), and it is away from the underarm (203) the other end is fixed on the upper surface of the main body (1) and the locking component (2) is applied to make the upper arm (202) and the power from the underarm (203) to the direction of lower swing.

7. the zipper head according to any one of claims 1 to 3, it is characterised in that in the inner surface of the lid (4) The position relative with the base portion (201) of the locking component (2) be provided with that inside side projects for preventing the locking component (2) The disengaging departed from from the locking component support (105) prevents protuberance (404).

8. the zipper head according to any one of claims 1 to 3, it is characterised in that the locking component support (105) it is that the supporting convex portion (106) is in body width side from the main body (1) upper surface one prominent supporting convex portion (106) To two sides be formed with projecting height higher than supporting convex portion (106) two or so stopper sections (107,107), the locking component (2) it is formed with the position adjacent with underarm (203) on the downside of base portion (201) and is matched with the shape of the supporting convex portion (106) Supporting recess (204).

9. the zipper head according to any one of claims 1 to 3, it is characterised in that the projection (205) is towards described Underarm (203) is prominent.

10. the zipper head according to any one of claims 1 to 3, it is characterised in that close on the projection (205) The shape of the medial surface (207) of the upper arm (202) matches with the shape of axle portion (501) outer surface of the pulling-on piece (5).

11. a kind of slide fasteners, it is characterised in that usage right requires the zipper head any one of 1～10.

A kind of 12. articles, it is characterised in that：Usage right requires the slide fastener described in 11.